1. A white spirit steaming brewing process based on a drum-type automatic integrated brewing system is characterized in that the brewing system comprises a mounting groove, a fermentation tank, a lifter, a distillation rotary kiln, a cooling and yeast mixing rotary kiln and a negative pressure machine; the fermentation tank is positioned on two sides of the mounting groove, the distillation rotary kiln and the cooling and yeast mixing rotary kiln are rotatably arranged in the mounting groove, and the hoister is movably arranged at any position of the mounting groove;

the distillation rotary kiln and the cooling and yeast mixing rotary kiln respectively comprise rotary cylinders with the length of 40-60 meters and the inner diameter of 1.8-2.3 meters, guide vanes are arranged on the inner walls of the rotary cylinders, a kiln head is arranged at one end of each rotary cylinder, a kiln tail is arranged at the other end of each rotary cylinder, each rotary cylinder is respectively sealed and rotatably connected with the kiln head and the kiln tail, a feeding hopper communicated with the inside of each rotary cylinder is arranged on each kiln head, and a discharging port communicated with the inside of each rotary cylinder is arranged at each kiln tail; the distillation rotary kiln also comprises a wine taking mandrel positioned in the rotary cylinder body, the wine taking mandrel comprises a wine taking pipe and a steam pipe, one end of the steam pipe penetrates through the kiln head, one end of the wine taking pipe penetrates through the kiln tail, the other end of the wine taking pipe is connected with a negative pressure machine, a plurality of air outlet holes are formed in the steam pipe, and the steam pipe is positioned below the material level of the fermented grains;

the cooling and yeast stirring rotary kiln also comprises a cooling and yeast stirring core pipe, wherein a plurality of through holes are uniformly distributed on the wall body of the cooling and yeast stirring core pipe, the cooling and yeast stirring core pipe is divided into a cooling section and a yeast stirring section along the middle part of the cooling and yeast stirring core pipe, the cooling section penetrates through the kiln head and is communicated with a cooling fan, and the yeast stirring section penetrates through the kiln tail and is communicated with a yeast adding mechanism for blowing yeast into the yeast stirring section; a transmission cylinder is arranged between a discharge port of the distillation rotary kiln and a feed hopper of the cooling and yeast mixing rotary kiln; the steaming and brewing process comprises twice grain moistening and N times wine taking, and comprises the following steps:

step one, blending raw materials: the raw material is one of wheat, sorghum and corn, the raw material and distiller's yeast are prepared according to the weight ratio of 1:1, and the raw material is soaked and then is peeled for standby;

step two, moistening the grains for the first time: adding 1/2 raw materials from the head of the distillation rotary kiln, controlling the rotary cylinder of the distillation rotary kiln to rotate at a constant speed, introducing high-temperature steam to cook the raw materials at a high temperature, pushing the raw materials from the head of the kiln to the tail of the kiln at a constant speed by guide vanes along with the rotation of the rotary cylinder, and discharging the raw materials from the discharge hole of the tail of the kiln;

step three, cooling and mixing the yeast for the first time: adding the raw materials after the first grain moistening from the head of the cooling and yeast stirring rotary kiln, controlling a rotary cylinder of the cooling and yeast stirring rotary kiln to rotate at a constant speed, pushing the raw materials from the head of the kiln to the tail of the kiln by guide blades along with the rotation of the rotary cylinder, stirring yeast in a yeast stirring section after the raw materials are gradually cooled in a cooling section, blowing 1/N yeast medicine amount into the cooling and yeast stirring rotary kiln at a constant speed through a yeast adding mechanism, and discharging the yeast-stirred raw materials from a discharge port at the tail of the kiln;

step four, natural fermentation for the first time: transferring the raw materials after the primary cooling and yeast mixing to a fermentation tank for sealed fermentation for 30-40 days;

step five, secondary grain moistening, secondary cooling and yeast mixing, secondary natural fermentation, primary distillation and wine taking: mixing the residual 1/2 raw material with the raw material after the first natural fermentation, and then repeating the steps two to four to finish the second natural fermentation to obtain fermented grains; the negative pressure machine is also required to be opened in the secondary moistening process, and wine steam generated in the secondary moistening process is sucked out through the wine taking pipe to finish the primary wine taking;

step six, secondary distillation wine taking: transferring the fermented grains into a distillation rotary kiln, rotating a rotary cylinder body, starting a negative pressure machine, externally connecting high-temperature steam to a steam pipe, heating the fermented grains in the rotary cylinder body with the air pressure of 0.05-0.1 MPa, generating a large amount of wine steam in the rotary cylinder body, sucking the wine steam in the rotary cylinder body to the outside of the rotary cylinder body through the negative pressure machine by a wine taking pipe, cooling and taking the wine, pushing the fermented grains from the head of the kiln to the tail of the kiln along with the rotation of the rotary cylinder body, and finally discharging the distilled fermented grains from a discharge hole at the tail of the kiln;

step seven, cooling and mixing the yeast for three times: transferring the fermented grains after the secondary distillation and wine taking to a cooling and yeast mixing rotary kiln for cooling and yeast mixing by adopting a mode of the third step;

step eight, three times of natural fermentation: transferring the fermented grains subjected to tertiary cooling and yeast mixing to a fermentation tank, and sealing and fermenting for 30-40 days;

repeating the steps from six to eight in a circulating way (N-3 times), wherein the amount of yeast used for mixing the yeast each time is 1/N of the total amount of the yeast.

2. The white spirit steaming brewing process based on the drum-type automatic integrated brewing system according to claim 1, which is characterized in that: the distance between adjacent guide blades is 1m, and the rotating speed of the rotating cylinder is 1 r/min.

3. The white spirit steaming brewing process based on the drum-type automatic integrated brewing system according to claim 2, characterized in that: the advancing time of the fermented grains on each unit longitudinal section in the rotary cylinder body is 50-70 min.

4. A white spirit steaming brewing process based on a drum-type automatic integrated brewing system according to claim 3, which is characterized in that: and a material conveying mechanism communicated with each other is built among the fermentation tank, the lifter, the cooling and yeast stirring rotary kiln and the distillation rotary kiln, and the material conveying mechanism comprises a plurality of conveying belts which are vertically and horizontally arranged.

5. A white spirit steaming brewing process based on a drum-type automatic integrated brewing system according to claim 4, characterized in that: the wine taking pipe is sleeved in the steam pipe and is not communicated with the steam pipe, and a gap is formed between the steam pipe and the wine taking pipe; the wine taking core shaft also comprises a collecting pipe, wherein a plurality of wine steam inlet holes are formed in the collecting pipe, and the collecting pipe penetrates through the steam pipe and is communicated with the wine taking pipe.

6. A white spirit steaming brewing process based on a drum-type automatic integrated brewing system according to claim 5, which is characterized in that: get wine core axle and still include the tail wine pipe, the one end of tail wine pipe cup joints and is getting wine intraduct, and the tail wine pipe with get wine intraduct each other and feed through, the other end of tail wine pipe is connected with the negative pressure machine through first rotary joint, the tail wine pipe is located the one end intercommunication of getting wine intraduct and has the collecting pipe, the collecting pipe at here passes the steam pipe in proper order and gets wine pipe.

7. The white spirit steaming brewing process based on the drum-type automatic integrated brewing system according to claim 6, characterized in that: the collecting pipe is connected with the inner wall of the rotary cylinder body through a connecting block.

8. The white spirit steaming brewing process based on the drum-type automatic integrated brewing system according to claim 7, characterized in that: the kiln head and the kiln tail both comprise a connecting plate and a second rotary joint, the connecting plate is connected with the rotary cylinder in a sealing and rotating mode, the second rotary joint penetrates through the middle of the connecting plate, and the two ends of the cooling mixing bent core pipe, the wine taking pipe and the steam pipe are connected with the second rotary joints in corresponding positions.

9. The white spirit steaming brewing process based on the drum-type automatic integrated brewing system according to claim 8, characterized in that: the outer wall of the rotary cylinder body is connected with a blocking wheel and a tug, the rotary cylinder body is further connected with a transmission mechanism for driving the rotary cylinder body to rotate, the transmission mechanism comprises a motor, a gearbox and a gear ring which are sequentially connected, gears are fixedly sleeved on the outer portions of the cooling and stirring cylinder and the distillation cylinder, and the gear ring is meshed with the gears.

10. A white spirit steaming and brewing process based on a drum-type automatic integrated brewing system according to any one of claims 1 to 9, which is characterized in that: and the number of times N of taking wine is 7.

Background

White spirit is a general name of Chinese wines (except fruit wine and rice wine), and is also called distilled liquor, dried old white, knife, and the like. Chinese liquor has compound flavor with esters as main component, and is brewed by using yeast and yeast as saccharifying ferment and using starchiness (saccharine) as raw materials and through steaming, saccharifying, fermenting, distilling, cooling, ageing and blending.

The production process of the white spirit comprises the following steps: preparing raw materials and distiller's yeast, soaking and steaming the raw materials, cooling the raw materials, uniformly stirring the raw materials and the distiller's yeast to ferment to obtain fermented grains, distilling and extracting wine vapor in the fermented grains by using a white spirit distilling device, and cooling the fermented grains to obtain wine liquid.

The fermented grains after each wine taking can be subjected to secondary fermentation, tertiary fermentation and the like, so the fermented grains in the wine screen need to be taken out after each wine taking by distillation, each wine taking and fermentation depend on manual feeding and discharging, the fermented grains need to be fully cooled before each fermentation, then the fermented grains are mixed with distiller's yeast, and the fermented grains are transferred to a fermentation tank for fermentation after being uniformly mixed.

In the traditional process, the feeding, the discharging and the yeast mixing are all manually operated, the labor intensity is high, the automation degree is low, the production efficiency is not high, the number of manual participation links is large, influence factors are correspondingly increased, the process conditions are not controllable, and the quality of the white spirit is finally influenced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a white spirit steaming and brewing process based on a drum-type automatic integrated brewing system.

According to the scheme, the white spirit steaming brewing process based on the drum-type automatic integrated brewing system comprises a mounting groove, a fermentation tank, a lifter, a distillation rotary kiln, a cooling and yeast mixing rotary kiln and a negative pressure machine; the fermentation tank is positioned on two sides of the mounting groove, the distillation rotary kiln and the cooling and yeast mixing rotary kiln are rotatably arranged in the mounting groove, and the hoister is movably arranged at any position of the mounting groove;

the distillation rotary kiln and the cooling and yeast mixing rotary kiln respectively comprise rotary cylinders with the length of 40-60 meters and the inner diameter of 1.8-2.3 meters, guide vanes are arranged on the inner walls of the rotary cylinders, a kiln head is arranged at one end of each rotary cylinder, a kiln tail is arranged at the other end of each rotary cylinder, each rotary cylinder is respectively sealed and rotatably connected with the kiln head and the kiln tail, a feeding hopper communicated with the inside of each rotary cylinder is arranged on each kiln head, and a discharging port communicated with the inside of each rotary cylinder is arranged at each kiln tail; the distillation rotary kiln also comprises a wine taking mandrel positioned in the rotary cylinder body, the wine taking mandrel comprises a wine taking pipe and a steam pipe, one end of the steam pipe penetrates through the kiln head, one end of the wine taking pipe penetrates through the kiln tail, the other end of the wine taking pipe is connected with a negative pressure machine, a plurality of air outlet holes are formed in the steam pipe, and the steam pipe is positioned below the material level of the fermented grains;

the cooling and yeast stirring rotary kiln also comprises a cooling and yeast stirring core pipe, wherein a plurality of through holes are uniformly distributed on the wall body of the cooling and yeast stirring core pipe, the cooling and yeast stirring core pipe is divided into a cooling section and a yeast stirring section along the middle part of the cooling and yeast stirring core pipe, the cooling section penetrates through the kiln head and is communicated with a cooling fan, and the yeast stirring section penetrates through the kiln tail and is communicated with a yeast adding mechanism for blowing yeast into the yeast stirring section; a transmission cylinder is arranged between a discharge port of the distillation rotary kiln and a feed hopper of the cooling and yeast mixing rotary kiln; the steaming and brewing process comprises twice grain moistening and N times wine taking, and comprises the following steps:

step one, blending raw materials: the raw material is one of wheat, sorghum and corn, the raw material and distiller's yeast are prepared according to the weight ratio of 1:1, and the raw material is soaked and then is peeled for standby;

step two, moistening the grains for the first time: adding 1/2 raw materials from the head of the distillation rotary kiln, controlling the rotary cylinder of the distillation rotary kiln to rotate at a constant speed, introducing high-temperature steam to cook the raw materials at a high temperature, pushing the raw materials from the head of the kiln to the tail of the kiln at a constant speed by guide vanes along with the rotation of the rotary cylinder, and discharging the raw materials from the discharge hole of the tail of the kiln;

step three, cooling and mixing the yeast for the first time: adding the raw materials after the first grain moistening from the head of the cooling and yeast stirring rotary kiln, controlling a rotary cylinder of the cooling and yeast stirring rotary kiln to rotate at a constant speed, pushing the raw materials from the head of the kiln to the tail of the kiln by guide blades along with the rotation of the rotary cylinder, stirring yeast in a yeast stirring section after the raw materials are gradually cooled in a cooling section, blowing 1/N yeast medicine amount into the cooling and yeast stirring rotary kiln at a constant speed through a yeast adding mechanism, and discharging the yeast-stirred raw materials from a discharge port at the tail of the kiln;

step four, natural fermentation for the first time: transferring the raw materials after the primary cooling and yeast mixing to a fermentation tank for sealed fermentation for 30-40 days;

step five, secondary grain moistening, secondary cooling and yeast mixing, secondary natural fermentation, primary distillation and wine taking: mixing the residual 1/2 raw material with the raw material after the first natural fermentation, and then repeating the steps two to four to finish the second natural fermentation to obtain fermented grains; the negative pressure machine is also required to be opened in the secondary moistening process, and wine steam generated in the secondary moistening process is sucked out through the wine taking pipe to finish the primary wine taking;

step six, secondary distillation wine taking: transferring the fermented grains into a distillation rotary kiln, rotating a rotary cylinder body, starting a negative pressure machine, externally connecting high-temperature steam to a steam pipe, heating the fermented grains in the rotary cylinder body with the air pressure of 0.05-0.1 MPa, generating a large amount of wine steam in the rotary cylinder body, sucking the wine steam in the rotary cylinder body to the outside of the rotary cylinder body through the negative pressure machine by a wine taking pipe, cooling and taking the wine, pushing the fermented grains from the head of the kiln to the tail of the kiln along with the rotation of the rotary cylinder body, and finally discharging the distilled fermented grains from a discharge hole at the tail of the kiln;

step seven, cooling and mixing the yeast for three times: transferring the fermented grains after the secondary distillation and wine taking to a cooling and yeast mixing rotary kiln for cooling and yeast mixing by adopting a mode of the third step;

step eight, three times of natural fermentation: transferring the fermented grains subjected to tertiary cooling and yeast mixing to a fermentation tank, and sealing and fermenting for 30-40 days;

repeating the steps from six to eight in a circulating way (N-3 times), wherein the amount of yeast used for mixing the yeast each time is 1/N of the total amount of the yeast.

The working principle of the invention is as follows: according to the invention, the rotary cylinders in the distillation rotary kiln and the cooling and yeast mixing rotary kiln have the same size and specification, and guide blades with the same pitch are arranged on the inner wall of the rotary cylinder, so that fermented grains can be controlled to run at a constant speed, the cooking time of each fermented grain is ensured to be consistent, and the cooling and yeast mixing speeds are consistent. Adopt the continuous material loading at the uniform velocity of lifting machine, the fermented grain of discharging in the rotary kiln of distilling has enough to meet the need the cooling immediately through the transmission section of thick bamboo and mixes bent rotary kiln, gets wine, cooling, mixes bent and unloading from material loading, distillation, realizes continuous operation, compares in traditional white spirit distillation plant, and this scheme has practiced thrift energy and time greatly, has improved work efficiency.

The distillation rotary kiln in the scheme can steam raw materials and take wine from fermented grains. The steam pipe is positioned below the material level of the fermented grains, so that the steam is fully used for heating the fermented grains, and the steam is prevented from being directly mixed into the wine steam to influence the concentration of the wine steam.

Because the kiln head and the kiln tail at the two ends of the rotary cylinder body are connected with the kiln head and the kiln tail in a sealing and rotating mode, the problem of sealing performance is solved, the positions of a steam pipe, a wine taking pipe and a cooling bent stirring pipe which are connected to the kiln head or the kiln tail cannot be influenced by the rotation of the rotary cylinder body, a plurality of connecting pieces can be arranged on the inner wall of the rotary cylinder body to serve as supporting points, the connecting pieces are connected with the rotary cylinder body in a rotating mode, the connecting pieces are fixedly connected with the steam pipe, the wine taking pipe and the cooling bent stirring pipe, and the stability of the steam pipe, the wine taking pipe and the cooling bent stirring pipe inside the rotary cylinder body is enhanced.

The invention has the beneficial effects that:

(1) the invention upgrades the pure manual brewing of the traditional process of the white spirit into the assembly line intelligent brewing process at one time, greatly improves the production efficiency and reduces the labor intensity and the number of workers; saving valuable land resources.

(2) The brewing and distillation of white spirit are carried out on an automatic production line, the influence of human factors is reduced, the working parameters of all components of the system are strictly controlled, the quality of the white spirit obtained every time is guaranteed, and the quality of the white spirit in each batch is consistent.

Further, the distance between adjacent guide vanes is 1m, and the rotating speed of the rotating cylinder is 1 r/min.

Further, the advancing time of the fermented grains on each unit longitudinal section in the rotary cylinder body is 50-70 min.

Furthermore, a material conveying mechanism which is communicated with each other is built among the fermentation tank, the hoister, the cooling and yeast mixing rotary kiln and the distillation rotary kiln, and the material conveying mechanism comprises a plurality of conveying belts which are vertically and horizontally arranged. The fermented grains are transferred to the head of the distillation yeast mixing rotary kiln for feeding after fermentation, the fermented grains at the tail of the cooling yeast mixing rotary kiln are transferred to a fermentation tank before fermentation, and the number of the fermentation tanks is more than one in actual fermentation, so that the fermented grains are convenient to transfer, a material conveying mechanism is arranged according to the layout of a brewing factory and the structure of a system, the technology is more conventional and easy to realize, the fermented grains in each link are conveyed mechanically, the automation degree of the system is further improved, and the production efficiency is improved.

Further, the wine taking pipe is sleeved inside the steam pipe and is not communicated with the steam pipe, and a gap is formed between the steam pipe and the wine taking pipe; the wine taking core shaft also comprises a collecting pipe, wherein a plurality of wine steam inlet holes are formed in the collecting pipe, and the collecting pipe penetrates through the steam pipe and is communicated with the wine taking pipe. The wine core shaft and the rotary cylinder body are coaxial, the wine taking pipe is sleeved in the steam pipe, the compactness of the structure is increased, the stability is improved, the wine taking pipe and the steam pipe are not communicated with each other, and the situation that steam in the steam pipe directly enters the wine taking pipe can be avoided. Under the action of negative pressure, wine steam enters the collecting pipe through the wine steam inlet hole in sequence and then enters the wine taking pipe to be led out.

Further, get wine core axle and still include the tail wine pipe, the one end of tail wine pipe cup joints and is getting wine intraduct, and the tail wine pipe with get wine intraduct and not communicate each other, the other end of tail wine pipe is connected with the negative pressure machine through first rotary joint, the tail wine pipe is located to get the intraduct one end intercommunication of wine and has the collecting pipe, the collecting pipe at here passes the steam pipe in proper order and gets wine pipe. Because the distillation equipment is continuously operated, when the fermented grains gradually approach the tail of the kiln along with the rotation of the rotary cylinder, the ethanol content in the fermented grains is lower, the distilled wine steam at the section is condensed into tail wine, and the tail wine pipe sucks the wine steam in the rotary cylinder at the section to the outside of the rotary cylinder through a tail wine air inlet and a negative pressure mechanism for cooling and collecting.

Furthermore, the collecting pipe is connected with the inner wall of the rotary cylinder body through a connecting block. The rotation of the rotary cylinder drives the wine taking core shaft to synchronously rotate.

Further, the kiln head and the kiln tail both comprise a connecting plate and a second rotary joint, the connecting plate is connected with the rotary cylinder in a sealing and rotating mode, the second rotary joint penetrates through the middle of the connecting plate, and the two ends of the cooling and yeast mixing core pipe, the wine taking pipe and the steam pipe are connected with the second rotary joints in corresponding positions. According to the scheme, the rotary cylinder rotates to drive the cooling and yeast stirring core pipe and the wine taking core shaft to synchronously rotate, so that the cooling and yeast stirring core pipe and the wine taking core shaft also move in the advancing process of wine fermented grains, the pulling force caused by the movement of the wine fermented grains on the cooling and yeast stirring core pipe and the wine taking core shaft is reduced, the stability of the cooling and yeast stirring core pipe and the wine taking core shaft is enhanced, and the service lives of the cooling and yeast stirring core pipe and the wine taking core shaft are prolonged.

Furthermore, the outer wall of the rotary cylinder body is connected with a blocking wheel and a tug, the rotary cylinder body is further connected with a transmission mechanism for driving the rotary cylinder body to rotate, the transmission mechanism comprises a motor, a gearbox and a gear ring which are sequentially connected, gears are fixedly sleeved outside the cooling and stirring cylinder and the distillation cylinder, and the gear ring is meshed with the gears. Ensure the rotation of the rotary cylinder and maintain the stability.

Furthermore, the number of times N of wine taking is 7.

Drawings

FIG. 1 is a schematic structural view of a drum-type automatic integrated brewing system according to the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic view of the external structure of a rotary distillation kiln;

FIG. 4 is a schematic structural view of a wine-taking mandrel;

FIG. 5 is a schematic structural view of a gravity ball valve;

FIG. 6 is a diagram of one of the states of use of the gravity ball valve;

fig. 7 is another state diagram of the gravity ball valve.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a fermented grain stack 1, a factory building I-steel upright column 2, a conveyor belt 3, a fermentation tank 4, a cooling and yeast stirring rotary kiln 5, a distillation rotary kiln 6, an upright spiral elevator 7, a transition hopper 8, a feeding hopper 9, a motor 10, a steam pipe 11, a kiln head 12, a catch wheel 13, a flexible connection 14, a gear 15, a gear ring 16, a wheel belt 17, a rotary cylinder body I18, a kiln tail 19, a wine taking pipe 20, a discharge port 21, a tug 22, a connecting block 23, a gravity ball valve 24, an air outlet 25, a wine steam inlet 26, a collecting pipe 27, a guide vane 28, a second rotary joint 29 and a tail wine pipe 30.

A white spirit steaming brewing process based on a drum-type automatic integrated brewing system is disclosed, wherein the drum-type automatic integrated brewing system is shown in figures 1-7 and comprises a vertical spiral elevator 7, a distillation rotary kiln 6, a cooling and yeast mixing rotary kiln 5 and a negative pressure machine; the distillation rotary kiln 6 comprises a first rotary cylinder 18, the cooling and yeast stirring rotary kiln 5 comprises a second rotary cylinder, the first rotary cylinder 18 and the second rotary cylinder have the same structure, taking the first rotary cylinder 18 as an example, the length of the first rotary cylinder 18 is 40-60 meters, preferably 60 meters, the inner diameter of the first rotary cylinder 18 is 1.8-2.3 meters, preferably 2 meters, guide blades 28 are arranged on the inner wall of the first rotary cylinder 18, and the distance between every two adjacent guide blades 28 is 1 meter; one end of the first rotary cylinder 18 is provided with a kiln head 12, the other end of the first rotary cylinder 18 is provided with a kiln tail 19, the first rotary cylinder 18 is respectively connected with the kiln head 12 and the kiln tail 19 in a sealing and rotating mode, the kiln head 12 is provided with a feeding hopper 9 communicated with the inside of the first rotary cylinder 18, and the kiln tail 19 is provided with a discharging port 21 communicated with the inside of the first rotary cylinder 18.

Kiln head 12 and kiln tail 19 all include connecting plate and second rotary joint 29, and the connecting plate is sealed and rotate with rotatory barrel and be connected, and second rotary joint 29 runs through the middle part of connecting plate, and the connecting plate is sealed and rotate with rotatory barrel 18 and be connected, specifically can adopt a plurality of foil overlaps in the junction of connecting plate and rotatory barrel 18, and the both ends of foil use the wire to cramp again, ensure the leakproofness.

The outer walls of the first rotary cylinder body 18 and the second rotary cylinder body are connected with a wheel belt 17, a wheel and a tug 22, the first rotary cylinder body 18 and the second rotary cylinder body are further connected with a transmission mechanism for driving the first rotary cylinder body 18 and the second rotary cylinder body to rotate, the transmission mechanism comprises a motor 10, a gearbox and a gear ring 16 which are sequentially connected, a gear 15 is fixedly sleeved outside the cooling and stirring cylinder and the distillation cylinder, and the gear ring 16 is meshed with the gear 15.

The distillation rotary kiln 6 also comprises a wine taking mandrel positioned in the first rotary cylinder 18, the wine taking mandrel comprises a collecting pipe 27, and a tail wine pipe 30, a wine taking pipe 20 and a steam pipe 11 which are sequentially sleeved from inside to outside, the tail wine pipe 30, the wine taking pipe 20 and the steam pipe 11 are not communicated with each other, and a gap is reserved between the steam pipe 11 and the wine taking pipe 20; one end of the steam pipe 11 is externally connected with steam equipment through a second rotary joint 29 at the kiln head 12, one end of the wine taking pipe 20 is connected with a negative pressure machine through a second rotary joint 29 at the kiln tail 19, the steam pipe 11 is provided with a plurality of air outlet holes 25, and the steam pipe 11 is positioned below the material level of the fermented grains; the one end of tail wine pipe 30 cup joints inside getting wine pipe 20, and the other end of tail wine pipe 30 is connected with the negative pressure machine through first rotary joint.

The collecting pipe 27 is L-shaped, two collecting pipes 27 are provided, one collecting pipe 27 is about 10m in length, the other collecting pipe 27 is about 48 m in length, a plurality of wine steam air inlets 26 are formed in the collecting pipe 27, a shorter collecting pipe 27 penetrates through the steam pipe 11 and the wine taking pipe 20 and then is communicated with the tail wine pipe 30, a longer collecting pipe 27 penetrates through the steam pipe 11 and is communicated with the wine taking pipe 20, and the collecting pipe 27 is connected with the inner wall of the first rotary cylinder 18 through the connecting block 23.

One end of the collecting pipe 27 is spaced from the kiln head 12 by about 2 m, and the tail wine pipe 30 is used for taking tail wine close to the kiln tail 19, so that the length of the collecting pipe 27 communicated with the tail wine pipe 30 is within 10 m.

The tail wine pipe 30 is communicated with the collecting pipe 27, the wine taking pipe 20 is communicated with the collecting pipe 27 through the gravity ball valve 24, when the collecting pipe 27 rotates to a position below the material level of the fermented grains along with the rotation of the first rotary cylinder body 18, the gravity ball valve 24 can block the communication between the tail wine pipe 30 and the collecting pipe 27 and the communication between the wine taking pipe 20 and the collecting pipe 27, and the fermented grains are prevented from being sucked into the tail wine pipe 30 and the wine taking pipe 20 from the wine steam air inlet hole 26 under the action of negative pressure.

The gravity ball valve 24 has a mechanism as shown in fig. 5, which comprises a ball valve body, wherein a cavity is arranged inside the ball valve body, a communicating port communicated with the outside is arranged at one end of the ball valve body, a plurality of air passing holes are arranged at the other end of the ball valve body, a movable gravity ball is arranged in the cavity, the outer diameter of the gravity ball is larger than the caliber of the communicating port, and the outer diameter of the gravity ball is smaller than the inner diameter of one end of the ball valve body, which is provided with the air passing holes. The gravity ball valve 24 is in use as shown in fig. 6 and 7.

The cooling and yeast stirring rotary kiln 5 also comprises a cooling and yeast stirring core pipe, a plurality of through holes are uniformly distributed on the wall body of the cooling and yeast stirring core pipe, the cooling and yeast stirring core pipe is divided into a cooling section and a yeast stirring section along the middle part of the cooling and yeast stirring core pipe, the cooling section penetrates through the kiln head and is communicated with a cooling fan, and the yeast stirring section penetrates through the kiln tail 19 and is communicated with a yeast adding mechanism for blowing yeast into the yeast stirring section; the koji adding mechanism comprises a koji medicine box for containing koji medicines and a blower which is connected to the koji medicine box and can blow the koji medicines into the rotary cylinder II.

Guide vanes 28 are arranged on the outer walls of the cooling and bending core pipe and the steam pipe 11, and the pitch of the guide vanes 28 is the same as that of the guide vanes 28 on the inner walls of the first rotary cylinder 18 and the second rotary cylinder.

The vertical spiral lifters 7 are multiple, any vertical spiral lifter 7 is movably arranged at any position of the mounting groove, and a transmission cylinder is arranged between a discharge port 21 of a rotary cylinder body of the distillation rotary kiln 6 and a charging hopper 9 of a rotary cylinder body II of the cooling and stirring rotary kiln 5.

And a turnover barrel is arranged at the kiln tail 19 of the second rotary barrel body, an upright spiral elevator 7 is also arranged in the turnover barrel, and fermented grains after being cooled and mixed with yeast can be transferred to a conveying belt from the turnover barrel through the upright spiral elevator 7 and conveyed to the fermentation tank 4 or the fermented grain stack 1 through the conveying belt.

The connecting plate is rotatably connected with the head of the distillation barrel in a sealing manner, specifically, a flexible connection 14 is adopted, a plurality of thin metal sheets are overlapped at the connecting part of the connecting plate and the distillation barrel in the flexible connection 14, and two ends of each thin metal sheet are clamped by metal wires to ensure the sealing property.

The system also comprises a mounting groove and a fermentation pool 4 positioned on two sides of the mounting groove, a distillation rotary kiln 6 and a cooling and yeast mixing rotary kiln 5 are arranged in the mounting groove, an upright spiral elevator 7 is positioned in the fermentation pool 4, and a travelling crane in the plant can move the upright spiral elevator 7 to the fermented grains in the fermentation pool 4. The both sides of mounting groove still are equipped with a plurality of unstrained spirits and pile 1, fermentation vat 4 is piled between 1 and the mounting groove at the unstrained spirits, fermentation vat 4, the lifting machine, set up the material transport mechanism who has the intercommunication between cooling and stirring bent rotary kiln 5 and the distillation rotary kiln 6, material transport mechanism includes factory building I-steel stand 2 and sets up many conveyer belts 3 of arranging with great ease on factory building I-steel stand 2, the conveyer belt sets up according to the actual conditions layering of factory building, be equipped with transition hopper 8 between conveyer belt 3 and the spiral elevator 7 of standing vertically.

The first rotary joint and the second rotary joint have the same structure and are both SRH type rotary joints produced by Shang Rong rotary joint limited of Tengzhou.

The white spirit brewing process based on the system comprises two grain moistening and 7 liquor taking steps, and comprises the following steps:

step one, blending raw materials: the raw material is one of wheat, sorghum and corn, the raw material and distiller's yeast are prepared according to the weight ratio of 1:1, and the raw material is soaked and then is peeled for standby;

step two, moistening the grains for the first time: 1/2 raw materials are added from the kiln head 12 of the distillation rotary kiln 6, a first rotary cylinder 18 of the distillation rotary kiln 6 is controlled to rotate at a constant speed, high-temperature steam is introduced to cook the raw materials at a high temperature, and the guide vanes 28 push the raw materials from the kiln head 12 to the kiln tail 19 at a constant speed along with the rotation of the first rotary cylinder 18 and discharge the raw materials from a discharge hole 21 of the kiln tail 19;

step three, cooling and mixing the yeast for the first time: adding the raw materials after the primary grain moistening from a kiln head 12 of a cooling and yeast mixing rotary kiln 5, controlling a second rotary cylinder body of the cooling and yeast mixing rotary kiln 5 to rotate at a constant speed, pushing the raw materials from the kiln head 12 to a kiln tail 19 by guide blades 28 along with the rotation of the second rotary cylinder body, mixing yeast in a yeast mixing section after the raw materials are gradually cooled in a cooling section, blowing 1/7 yeast medicine into the cooling and yeast mixing rotary kiln 5 at a constant speed through a yeast adding mechanism, and discharging the raw materials after yeast mixing from a discharge port 21 of the kiln tail 19;

step four, natural fermentation for the first time: transferring the raw materials after the primary cooling and yeast mixing to a fermentation tank 4 for sealed fermentation for 30-40 days;

step five, secondary grain moistening, secondary cooling and yeast mixing, secondary natural fermentation, primary distillation and wine taking: mixing the residual 1/2 raw material with the raw material after the first natural fermentation, and then repeating the steps two to four to finish the second natural fermentation to obtain fermented grains; in the secondary moistening process, the negative pressure machine is also required to be opened, and wine steam generated in the secondary moistening process is sucked out through the wine taking pipe 20 to finish the primary wine taking;

step six, secondary distillation wine taking: transferring the fermented grains into a distillation rotary kiln 6, rotating a first rotary cylinder 18, starting a negative pressure machine, externally connecting high-temperature water vapor to a vapor pipe 11, wherein the air pressure is 0.05-0.1 MPa, heating the fermented grains in the first rotary cylinder 18, generating a large amount of wine vapor in the first rotary cylinder 18, sucking the wine vapor in the first rotary cylinder 18 to the outside of the first rotary cylinder 18 through a wine taking pipe 20 through the negative pressure machine, cooling and taking the wine, pushing the fermented grains from a kiln head 12 to a kiln tail 19 along with the rotation of the first rotary cylinder 18, and finally discharging the distilled fermented grains from a discharge hole 21 of the kiln tail 19;

step seven, cooling and mixing the yeast for three times: transferring the fermented grains after the secondary distillation and wine taking to a cooling and yeast mixing rotary kiln 5 for cooling and yeast mixing by adopting a mode of the third step;

step eight, three times of natural fermentation: transferring the fermented grains subjected to tertiary cooling and yeast mixing to a fermentation tank 4, and sealing and fermenting for 30-40 days; repeating the steps six to eight by 4 times in a circulating way, wherein the amount of yeast used in each time of yeast mixing is 1/7 of the total amount of yeast.