1. The utility model provides a wet sand automatic feed of drying-machine, feeding system which characterized in that: the sand silo comprises a box body (1), an opening (2) is formed in one side of the bottom end of the box body (1), a spiral conveying auger (3) is erected at the bottom end in the box body (1), the spiral conveying auger (3) extends out of one end of the opening (2), the extending end of the spiral conveying auger is located at a feed inlet of the lower end of the elevator (4), a discharge outlet of the upper end of the elevator (4) is located above a sand storage tank (5), the sand storage tank (5) comprises a tank body (5-1), a feed hopper (5-2) is installed at the upper end of the tank body (5-1), a spiral conveying shaft (5-3) in the vertical direction is erected in the tank body (5-1), and a conical cover (5-7) is arranged at the bottom end of the tank body (5-1), a gap is arranged between the outer periphery of the conical cover (5-7) and the inner wall of the tank body (5-1), a rotating shaft of the spiral conveying shaft (5-3) penetrates through the conical cover and extends into a discharge pipe (5-4) at the bottom end of the tank body (5-1), the extending end of the spiral conveying shaft is provided with spiral blades (5-5 and 5-6) with the spiral direction opposite to that of the upper part of the spiral conveying shaft, a centrifugal material dispersing mechanism (6) is erected below the discharge pipe (5-4), the centrifugal material dispersing mechanism (6) comprises a circular cover shell (6-1), the upper port of the circular cover shell (6-1) is provided with a material receiving hopper (6-2), the rotating shaft (6-3) is rotatably arranged in the circular cover shell (6-1), and a roller (6-4) is sleeved on the rotating shaft (6-3), blades (6-5) distributed along the radial direction are distributed on the roller (6-4).

2. The automatic feeding and feeding system for wet sand of dryer according to claim 1, wherein: the bottom face of sand storehouse box (1) arc face (7) that set up for the slope, the top position at arc face middle part is erect in auger delivery flood dragon (3), state the arc face parallel arrangement of auger delivery flood dragon (3) and slope, the box of auger delivery flood dragon (3) top is built internally and is equipped with toper transition hopper (8).

3. The automatic feeding and feeding system for wet sand of dryer according to claim 1, wherein: the sand silo box (1) discharge end be equipped with the slope and set up downwards connect flitch (9), the lower extreme that connects flitch (9) extends to the feed inlet department of lifting machine (4).

4. The automatic feeding and feeding system for wet sand of dryer according to claim 1, wherein: the sand storage tank is characterized in that a material guide plate (10) is obliquely arranged at the upper port of the sand storage tank (5), one end of the material guide plate (10) is arranged on the tank body right below the feed hopper, and the other end of the material guide plate (10) extends to the upper part of the middle spiral conveying shaft (5-3).

5. The automatic feeding and feeding system for wet sand of dryer according to claim 1, wherein: the outer circumference of the conical cover (5-7) is connected and installed with the inner wall of the tank body (5-1) through a connecting reinforcing rib (11), the middle of the top end part of the conical cover (5-7) is provided with a platform, and the platform is provided with a hole for the spiral conveying shaft to pass through.

6. The automatic feeding and feeding system for wet sand of dryer according to claim 1, wherein: the spiral blades on the spiral conveying shaft (5-3) above the conical cover (5-7) can convey materials in the tank body (5-1) upwards, and the spiral blades on the spiral conveying shaft below the conical cover (5-7) can convey the materials in the tank body downwards.

7. The automatic feeding and feeding system for wet sand of dryer according to claim 1, wherein: guide plates (6-6) which are arranged at intervals and are inclined downwards are distributed on the inner walls of the two sides of the circular housing (6-1), and the rotating shaft (6-3) is driven by a motor outside the circular housing (6-1). By the structure of the guide plate, the formation of the green sand can be extended, and the dispersion and the guiding of the green sand are assisted.

Background art:

when the dry-mixed mortar is produced, the water content of the raw material sand is required to be less than 0.5%, and the raw material sand cannot be directly used for the production of the dry-mixed mortar due to too high water content, so that the raw material sand needs to be dried before being used, and the water content of the raw material sand meets the condition of meeting the production requirement of the dry-mixed mortar.

The raw material sand needs to be fed before entering the dryer, because the operation of the dryer is regular and the temperature is generally fixed, the feeding amount of the wet sand is required to be within a certain range, so that the drying effect and the drying quality can be ensured, in the prior art, the wet sand is mostly taken from a wet sand pile through an excavator and then is placed into a wet sand bin with a simple box type structure, the wet sand discharged from the wet sand bin is conveyed to a storage hopper positioned above the dryer through a circulating conveyor belt, the wet sand is metered and discharged through the storage hopper, and then enters the dryer; its pay-off mode and pay-off simple structure, its wet sand can appear piling up in transportation process, the unstable situation of unloading to influence stoving effect and oven-dry mass.

The invention content is as follows:

the invention aims to make up the defects of the prior art, and provides an automatic feeding and feeding system for wet sand of a dryer, which can effectively convey, store and disperse the wet sand, can ensure that the wet sand uniformly and orderly enters the dryer, and the dispersed wet sand enters a drying rod machine, thereby ensuring the drying effect of the wet sand in the dryer.

The invention is realized by the following technical scheme:

the utility model provides a wet sand automatic feed of drying-machine, feeding system which characterized in that: the sand warehouse comprises a box body, an opening is arranged on one side of the bottom end of the box body, a spiral conveying auger is erected at the bottom end in the box body, the spiral conveying auger extends out from one end of the opening, the extending end of the spiral conveying auger is positioned at a feed inlet of the lower end of the lifting machine, a discharge port of the upper end of the lifting machine is positioned above the sand storage tank, the sand storage tank comprises a tank body, a feed hopper is arranged at the upper end of the tank body, a spiral conveying shaft in the vertical direction is erected in the tank body, a conical cover is arranged at the bottom end of the tank body, a gap is formed between the outer periphery of the conical cover and the inner wall of the tank body, a rotating shaft of the spiral conveying shaft penetrates through the conical cover and extends into the discharge pipe at the bottom end of the tank body, and the extending end of the spiral conveying shaft is provided with a spiral blade opposite to the spiral direction above the spiral conveying shaft, the centrifugal material dispersing mechanism is erected below the discharge pipe and comprises a circular housing, a material receiving hopper is arranged at an upper port of the circular housing, a rotating shaft is rotatably mounted in the circular housing, a roller is sleeved on the rotating shaft, and blades distributed along the radial direction are distributed on the roller.

The bottom face of sand storehouse box for the arcwall face that the slope set up, the top position at arcwall face middle part is erect to the auger delivery flood dragon, state the arcwall face parallel arrangement of auger delivery flood dragon and slope, the box of auger delivery flood dragon top has erect toper transition hopper in.

The discharge end of the sand silo box body is provided with a material receiving plate which is obliquely and downwards arranged, and the lower end of the material receiving plate extends to the feed inlet of the elevator.

The sand storage tank is characterized in that a material guide plate is obliquely arranged at the upper port of the sand storage tank, one end of the material guide plate is arranged on the tank body right below the feed hopper, and the other end of the material guide plate extends to the position above the middle spiral conveying shaft.

The outer circumference of the conical cover is connected and installed with the inner wall of the tank body through a connecting reinforcing rib, a platform is arranged in the middle of the top end of the conical cover, and a hole for the spiral conveying shaft to penetrate through is formed in the platform.

The spiral blades on the spiral conveying shaft above the conical cover can convey materials in the tank body upwards, and the spiral blades on the spiral conveying shaft below the conical cover can convey the materials in the tank body downwards.

The inner walls of the two sides of the circular housing are distributed with guide plates which are arranged at intervals and incline downwards, and the rotating shaft is driven by a motor outside the circular housing. By the structure of the guide plate, the formation of the green sand can be extended, and the dispersion and the guiding of the green sand are assisted.

The principle is as follows: the wet sand can be effectively conveyed, stored and dispersed through the sand warehouse, the hoister, the sand storage tank and the centrifugal bulk cargo mechanism, the wet sand can be ensured to uniformly and orderly enter the dryer, the dispersed wet sand enters the drying rod machine, so that the drying effect of the wet sand in the dryer is ensured, the sand warehouse is used for concentrating the wet sand, the wet sand can be effectively conveyed through the spiral conveying auger in the sand warehouse, the problems of large feeding amount and poor stability caused by direct conveying through a circulating conveying belt are avoided, a certain amount of temporary storage can be carried out on the wet sand through the structure of the sand storage tank, so that the feeding continuity is ensured, the structural design of the spiral conveying shaft in the sand storage tank is used for ensuring smooth discharging of the wet sand, the wet sand is prevented from being accumulated, the discharging pipe is easy to block and influence, and the discharging material output from the sand storage tank can be dispersed through the structural design of the centrifugal bulk cargo mechanism, the drying machine is convenient to dry, and the drying efficiency is accelerated.

The invention has the advantages that:

the system has reasonable structural design, can effectively convey, store and disperse the wet sand through the sand warehouse, the hoister, the sand storage tank and the centrifugal bulk cargo mechanism, can ensure that the wet sand uniformly and orderly enters the dryer, and the dispersed wet sand enters the drying rod machine, thereby ensuring the drying effect of the wet sand in the dryer.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of a sand silo box body.

Fig. 3 is a front cross-sectional view of a centrifugal bulk mechanism.

The specific implementation mode is as follows:

see the drawings.

The utility model provides a wet sand automatic feed of drying-machine, feeding system which characterized in that: the sand warehouse comprises a box body 1, an opening 2 is arranged on one side of the bottom end of the box body 1, a spiral conveying auger 3 is erected on the bottom end in the box body 1, the spiral conveying auger 3 extends out from one end of the opening 2, the extending end of the spiral conveying auger is positioned at a feed inlet of the lower end part of a lifting machine 4, a discharge port of the upper end part of the lifting machine 4 is positioned above a sand storage tank 5, the sand storage tank 5 comprises a tank body 5-1, a feed hopper 5-2 is installed at the upper end of the tank body 5-1, a spiral conveying shaft 5-3 in the vertical direction is erected in the tank body 5-1, a conical cover 5-7 is arranged at the bottom end of the tank body 5-1, and a gap is formed between the outer periphery of the conical cover 5-7 and the inner wall of the tank body 5-1, the rotary shaft of the spiral conveying shaft 5-3 penetrates through the conical cover and extends into a discharge pipe 5-4 at the bottom end of the tank body 5-1, the extension end of the rotary shaft is provided with spiral blades 5-5 and 5-6 with opposite spiral directions to those above the rotary shaft, a centrifugal bulk material mechanism 6 is erected below the discharge pipe 5-4, the centrifugal bulk material mechanism 6 comprises a circular cover 6-1, the upper port of the circular cover 6-1 is provided with a receiving hopper 6-2, the rotary shaft 6-3 is rotatably arranged in the circular cover 6-1, the rotary shaft 6-3 is sleeved with a rotary drum 6-4, and the rotary drum 6-4 is distributed with blades 6-5 distributed along the radial direction.

The bottom face of sand storehouse box 1 for the arcwall face 7 of slope setting, the top position at arcwall face middle part is erect to the auger delivery flood dragon 3, the arcwall face parallel arrangement of helical delivery flood dragon 3 and slope states, the box of auger delivery flood dragon 3 top is built internally and is equipped with toper transition hopper 8. The conical transition hopper can buffer and transition the wet sand, and avoids one-time large-amount falling and conveying.

The discharge end of the sand silo box body 1 is provided with a material receiving plate 9 which is arranged obliquely downwards, and the lower end of the material receiving plate 9 extends to the feed inlet of the elevator 4. The inlet end of the elevator can be ensured to be smoothly fed into the sand silo through the material receiving plate.

The sand storage tank is characterized in that a material guide plate 10 which is obliquely arranged is arranged at the upper port of the sand storage tank 5, one end of the material guide plate 10 is arranged on the tank body right below the feed hopper, and the other end of the material guide plate 10 extends to the upper part of the middle spiral conveying shaft 5-3. Through the structural design of the material guide plate, the wet sand can be guaranteed to be approximately positioned in the middle when the tank body is fed, and then the wet sand is scattered to the periphery of the tank body, so that the average degree of the sand in the tank body is guaranteed.

The outer circumference of the conical cover 5-7 is connected and installed with the inner wall of the tank body 5-1 through a connecting reinforcing rib 11, the middle of the top end part of the conical cover 5-7 is provided with a platform, and the platform is provided with a hole for the spiral conveying shaft to pass through.

The spiral blades on the spiral conveying shaft 5-3 above the conical cover 5-7 can convey materials in the tank body 5-1 upwards, and the spiral blades on the spiral conveying shaft below the conical cover 5-7 can convey materials in the tank body downwards.

Guide plates 6-6 which are arranged at intervals and are inclined downwards are distributed on the inner walls of the two sides of the circular housing 6-1, and the rotating shaft 6-3 is driven by a motor outside the circular housing 6-1. By the structure of the guide plate, the formation of the green sand can be extended, and the dispersion and the guiding of the green sand are assisted.

The specific flow of the system during working is as follows: the wet sand at the wet sand pile is thrown into a box body of a sand warehouse through an excavator, the wet sand is cached in the box body, the wet sand can be conveyed to a feed inlet of an elevator through the design of a spiral conveying auger in the box body, the wet sand falls into a feed hopper after being lifted by the elevator and enters a sand storage tank, the wet sand enters the sand storage tank for storage, the discharging of the wet sand drives a spiral blade to carry out spiral discharging on the wet sand through a spiral conveying shaft, so that the phenomenon that the wet sand is easy to block can be ensured, the conical cover separates the wet sand on the upper layer from the wet sand on the lower layer, the smooth conveying of the spiral conveying shaft can be ensured, the structural design of the spiral conveying blade on the upper layer and the structural design of the spiral conveying blade on the lower layer can continuously loosen and convey the wet sand above while the discharging of the wet sand, the accumulation of the wet sand above is avoided, the discharging pipe is not smooth, and the discharging pipe can be centrifugally dispersed through the structural design of a centrifugal bulk cargo mechanism, under the condition that the rotary shaft drives the roller to tell the rotation, the wet sand acts on the wet sand through the blades, so that the wet sand is thrown to different positions in the circular housing, the discharging can not be carried out all the time, the discharging at different times is realized, the dispersed discharging of the wet sand is avoided, and the influence on the drying efficiency and the drying quality caused by the fact that the wet sand enters the drying machine together is avoided.