1. A multilayer quick drying chamber system for mud low temperature mummification, including base (1), set up stoving case (2) in base (1) top, stoving case (2) are fixed at the top of base (1) through branch (3), its characterized in that: the four corners of base (1) bottom all is fixed with stabilizer blade (4), and is three be fixed with frame plate (5) between the surface of stabilizer blade (4), the top of base (1) is fixed with condensing equipment (10), the top of base (1) is fixed with dry heating equipment (11), condensing equipment (10) and dry heating equipment (11) are through first straight tube (12) intercommunication, the air inlet of dry heating equipment (11) passes through the top intercommunication of pipe (13) and stoving case (2), the top of base (1) is fixed with draught fan (14), the air inlet of draught fan (14) passes through the gas outlet intercommunication of L type pipe (15) and dry heating equipment (11), the top of base (1) is fixed with adjusts a section of thick bamboo (16), the right side of adjusting a section of thick bamboo (16) passes through second straight tube (17) with the air outlet of draught fan (14) intercommunication, the left side of the adjusting cylinder (16) is communicated with the bottom of the drying box (2) through a folding pipe (18), a conveying and accelerating drying mechanism (6) is arranged on the drying box (2), a processing cylinder (19) is fixed at the top of the base (1), a stir-frying and drying mechanism (7) is arranged on the processing cylinder (19), a temperature control adjusting mechanism (8) is arranged on the adjusting cylinder (16), and an extruding and collecting mechanism (9) is arranged on the frame plate (5);

carry with higher speed mummification mechanism (6) including rotating transfer roller (61) of connection between stoving case (2) inner wall both sides, transfer roller (61) is provided with six, two transfer roller (61) is a set of, two the transmission is connected with transportation belt (62) between the surface of transfer roller (61), the place ahead and the rear on transportation belt (62) surface all are fixed with rubber catch (63), ventilative heating hole (64) have been seted up to run through on the surface of transportation belt (62), transportation belt (62) are provided with threely, three transportation belt (62) are crisscross setting from top to bottom, the front of stoving case (2) is crisscross to be fixed with driving motor (65), and is adjacent the output shaft of driving motor (65) and the one end fixed connection of transfer roller (61), the back of stoving case (2) is fixed with shaking motor (66) through the connecting rod, the output shaft of shake motor (66) is fixed with drive shaft (67), the surface mounting of drive shaft (67) has cam (68), the back of stoving case (2) runs through to slide has slide bar (69), the back of stoving case (2) is fixed with fixed plate (610), the bottom of fixed plate (610) is fixed with reset spring (611), the bottom and the surface mounting of slide bar (69) of reset spring (611) are connected, the surface of cam (68) and the surface contact of slide bar (69), the one end of slide bar (69) is fixed with E type pole (612), the end of E type pole (612) is fixed with diaphragm (613), the top of diaphragm (613) is fixed with shake protruding (614), the back of stoving case (2) runs through to set up spout (615) with slide bar (69) looks adaptation.

2. The multi-layer quick drying chamber system for low-temperature sludge drying according to claim 1, characterized in that: the stir-frying and drying mechanism (7) comprises a stir-frying motor (71) fixed on the surface of the treatment barrel (19) and a hot air blower (72) fixed at the top of the base (1), wherein a ring-shaped pipe (73) is fixed on the surface of the treatment barrel (19), and an air outlet of the hot air blower (72) is communicated with the surface of the ring-shaped pipe (73) through a hose (74).

3. The multi-layer quick drying chamber system for low-temperature sludge drying according to claim 2, characterized in that: the inner side of the surface of the annular pipe (73) is communicated with an air outlet nozzle (75) penetrating into the processing barrel (19), and an output shaft of the stir-frying motor (71) is fixed with a turnover shaft (76) penetrating into the processing barrel (19).

4. The multi-layer quick drying chamber system for low-temperature sludge drying according to claim 3, characterized in that: the surface mounting of trip shaft (76) has hollow plate (77), the inner wall sliding connection of hollow plate (77) has extension board (78), be fixed with the spring between the inner wall of extension board (78) and hollow plate (77).

5. The multi-layer quick drying chamber system for low-temperature sludge drying according to claim 1, characterized in that: the temperature control adjusting mechanism (8) comprises an adjusting motor (81) fixed on the surface of the adjusting cylinder (16) and a circular plate (82) fixed on the inner wall of the adjusting cylinder (16), an output shaft of the adjusting motor (81) is fixedly provided with an adjusting shaft (83) penetrating into the adjusting cylinder (16), and the surface of the adjusting shaft (83) is fixedly provided with a first bevel gear (84).

6. The multi-layer quick drying chamber system for low-temperature sludge drying according to claim 5, characterized in that: the side face of the circular plate (82) is rotatably connected with a connecting shaft (85), a second bevel gear (86) meshed with the first bevel gear (84) is fixed on the surface of the connecting shaft (85), an air inlet groove (87) penetrates through the surface of the circular plate (82), a baffle (88) is fixed on the surface of the connecting shaft (85), and the side face of the baffle (88) is attached to the side face of the circular plate (82).

7. The multi-layer quick drying chamber system for low-temperature sludge drying according to claim 1, characterized in that: the top of stoving case (2) communicates feeder hopper (20), the bottom intercommunication of stoving case (2) has ejection of compact side pipe (21), ejection of compact side pipe (21) are located and handle a section of thick bamboo (19) directly over, the front of stoving case (2) is fixed with display (22), the inner wall of stoving case (2) is fixed with temperature sensor (23), temperature sensor (23) are connected with display (22).

8. The multi-layer quick drying chamber system for low-temperature sludge drying according to claim 1, characterized in that: extrusion collection mechanism (9) is including fixing collecting box (91) at frame plate (5) top, the top intercommunication of collecting box (91) has row material pipe (92), arrange the top of material pipe (92) and run through base (1) and with the bottom intercommunication of handling a section of thick bamboo (19), sliding connection has clamp plate (93) between all around of collecting box (91) inner wall, the right side of collecting box (91) inner wall is fixed with telescopic cylinder (94), the left end of telescopic cylinder (94) and the right side fixed connection of clamp plate (93), the bottom of collecting box (91) articulates there is sealing door (95).

9. The multi-layer quick drying chamber system for low-temperature sludge drying according to any one of claims 1-8, characterized in that: the temperature control method specifically comprises the following steps:

s1, starting the drying and heating device (11) and the induced draft fan (14), conveying hot air to the drying box (2) through the second straight pipe (17), the adjusting cylinder (16) and the folding pipe (18) in sequence, and displaying temperature data in the drying box (2) through the temperature sensor (23) through the display (22);

s2, when the temperature inside the drying box (2) needs to be reduced, the adjusting motor (81) is started, the adjusting shaft (83) drives the first bevel gear (84) to rotate, the second bevel gear (86) further drives the connecting shaft (85) to rotate, the baffle (88) can be driven to rotate, the air inlet groove (87) is shielded through the baffle (88), the speed of hot air entering the drying box (2) is controlled, the smaller the leakage area of the air inlet groove (87) is, the lower the temperature inside the drying box (2) is, and on the contrary, the higher the temperature is.

10. The temperature control method of the multi-layer quick drying chamber system for low-temperature drying of sludge according to claim 9, wherein the adjusting motor (81) in the step S2 is a three-phase alternating current asynchronous motor.

Background

At present, a large amount of solid wastes are produced in the production and processing processes of electronic circuits, which account for more than half of the amount of wastes produced in the whole electronic industry, wherein the most important is the production of pollutants of PCB manufacturing enterprises. The method has the advantages that a source emission reduction and related energy-saving and consumption-reducing system is made for actively promoting enterprises, the environmental quality of the enterprises is improved, the production cost of the enterprises is reduced, the enterprises can correspondingly establish a sewage treatment plant, the sludge is used as an important byproduct of sewage treatment, the daily production is rapidly increased, if the treatment is improper, secondary pollution is caused to the environment, the sludge resource utilization is the most effective treatment mode at present, and the sludge with high water content is the maximum bottleneck of the resource utilization.

According to patent publication No. CN107857460A sludge low temperature mummification device, including stoving case, conveyer belt group, circulating pipe, condensing equipment, desicator, heating device, circulating fan, controlling means, stoving roof portion is equipped with a feed cylinder, and the bottom of stoving case is equipped with a play feed cylinder, and this sludge low temperature mummification device is through organizing the setting at the stoving incasement with the conveyer belt for mud can obtain effectual stoving, and it is effectual to dry, but this sludge low temperature mummification device still has following not enoughly:

(1) when the conveyor belt group conveys sludge, the sludge is in a relatively static state, residual moisture in the sludge is not easy to sufficiently volatilize, the conveyor belt has no air permeability, and the drying effect needs to be improved;

(2) the temperature of the drying box is controlled by the control device when being adjusted, so that the use cost is relatively high;

(3) the dried sludge occupies a large space due to the sparse state.

Therefore, the invention provides a multi-layer quick drying cavity system for low-temperature drying of sludge and a temperature control method, so as to solve the problems.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a multi-layer quick drying cavity system for low-temperature drying of sludge and a temperature control method, which solve the problems that when a conveyor belt group conveys sludge, the sludge is in a relatively static state, residual moisture in the sludge is not easy to fully volatilize, the conveyor belt has no air permeability, and the drying effect needs to be improved; the temperature of the drying box is controlled by the control device when being adjusted, so that the use cost is relatively high; the dried sludge occupies a large space due to the sparse state.

In order to achieve the purpose, the invention is realized by the following technical scheme: a multilayer quick drying chamber system for mud low temperature mummification, include the base, set up the stoving case above the base, the stoving case passes through branch and fixes the top at the base, the four corners of base bottom all is fixed with the stabilizer blade, three be fixed with the frame plate between the surface of stabilizer blade, the top of base is fixed with condensing equipment, the top of base is fixed with dry heating equipment, condensing equipment and dry heating equipment communicate through first straight tube, dry heating equipment's air inlet communicates through the top of pipe with the stoving case, the top of base is fixed with the draught fan, the air intake of draught fan communicates through L type pipe and dry heating equipment's gas outlet, the top of base is fixed with the regulation section of thick bamboo, the right side of regulation section of thick bamboo communicates through the second straight tube with the air outlet of draught fan, the left side of regulation section of thick bamboo communicates through the bottom of rolling over pipe with the stoving case, the drying box is provided with a conveying acceleration drying mechanism, the top of the base is fixed with a treatment barrel, the treatment barrel is provided with a stir-frying drying mechanism, the adjustment barrel is provided with a temperature control adjusting mechanism, and the frame plate is provided with an extrusion collecting mechanism.

The conveying acceleration drying mechanism comprises conveying rollers which are rotatably connected between two sides of the inner wall of a drying box, the conveying rollers are provided with six, two conveying rollers are in a group, the conveying belts are connected between the surfaces of the conveying rollers in a transmission mode, rubber retaining pieces are fixed on the front sides and the rear sides of the surfaces of the conveying belts, the surfaces of the conveying belts are penetrated through and provided with ventilating heating holes, the conveying belts are three and three, the conveying belts are arranged in a vertically staggered mode, a driving motor is fixed on the front side of the drying box in a staggered mode, the output shaft of the driving motor is fixedly connected with one end of each conveying roller, the back side of the drying box is fixed with a shaking motor through a connecting rod, the output shaft of the shaking motor is fixed with a driving shaft, a cam is fixed on the surface of the driving shaft, a sliding rod is penetrated through the back side, the bottom of fixed plate is fixed with reset spring, reset spring's bottom and the fixed surface of slide bar are connected, the surface of cam and the surface contact of slide bar, the one end of slide bar is fixed with E type pole, the end of E type pole is fixed with the diaphragm, the top of diaphragm is fixed with the shake arch, the back of stoving case is run through and is seted up the spout with slide bar looks adaptation.

Preferably, the stir-frying and drying mechanism comprises a stir-frying motor fixed on the surface of the treatment cylinder and an air heater fixed at the top of the base, wherein an annular pipe is fixed on the surface of the treatment cylinder, and an air outlet of the air heater is communicated with the surface of the annular pipe through a hose.

Preferably, the inner side of the surface of the annular pipe is communicated with an air outlet nozzle penetrating into the processing barrel, and an output shaft of the stir-frying motor is fixed with a turnover shaft penetrating into the processing barrel.

Preferably, the surface of trip shaft is fixed with hollow plate, the inner wall sliding connection of hollow plate has the extension board, be fixed with the spring between the inner wall of extension board and hollow plate.

Preferably, the temperature control adjusting mechanism comprises an adjusting motor fixed on the surface of the adjusting cylinder and a circular plate fixed on the inner wall of the adjusting cylinder, an output shaft of the adjusting motor is fixed with an adjusting shaft penetrating into the adjusting cylinder, and a first bevel gear is fixed on the surface of the adjusting shaft.

Preferably, the side surface of the circular plate is rotatably connected with a connecting shaft, a second bevel gear meshed with the first bevel gear is fixed on the surface of the connecting shaft, an air inlet groove is formed in the surface of the circular plate in a penetrating mode, a baffle is fixed on the surface of the connecting shaft, and the side surface of the baffle is attached to the side surface of the circular plate.

Preferably, the top intercommunication feeder hopper of stoving case, the bottom intercommunication of stoving case has ejection of compact side pipe, ejection of compact side pipe is located directly over the section of thick bamboo of handling, the front of stoving case is fixed with the display, the inner wall of stoving case is fixed with temperature sensor, temperature sensor is connected with the display.

Preferably, the extrusion is collected the mechanism and is including fixing the collecting box at the frame plate top, the top intercommunication of collecting box has row material pipe, arrange the top of material pipe run through the base and with the bottom intercommunication of handling a section of thick bamboo, sliding connection has the clamp plate between the collecting box inner wall all around, the right side of collecting box inner wall is fixed with telescopic cylinder, telescopic cylinder's left end and the right side fixed connection of clamp plate, the bottom of collecting box articulates there is the sealing door.

The invention also discloses a temperature control method of the multilayer quick drying cavity system for low-temperature sludge drying, which specifically comprises the following steps:

s1, starting drying and heating equipment and a draught fan, conveying hot air to the drying box through a second straight pipe, an adjusting cylinder and a folding pipe in sequence, and displaying temperature data in the drying box through a display through a temperature sensor;

s2, when the temperature in the drying box needs to be reduced, the adjusting motor is started, the adjusting shaft drives the first bevel gear to rotate, the second bevel gear drives the connecting shaft to rotate, the baffle plate can be driven to rotate, the air inlet groove is shielded by the baffle plate, the speed of hot air entering the drying box is controlled, the leakage area of the air inlet groove is smaller, the temperature in the drying box is lower, and the temperature is higher.

Preferably, the adjusting motor in step S2 is a three-phase ac asynchronous motor.

Advantageous effects

The invention provides a multilayer quick drying cavity system for low-temperature sludge drying and a temperature control method. Compared with the prior art, the method has the following beneficial effects:

(1) the multilayer quick drying cavity system for low-temperature sludge drying and the temperature control method, the drying box is provided with a conveying accelerating drying mechanism, the conveying accelerating drying mechanism comprises conveying rollers which are rotatably connected between two sides of the inner wall of the drying box, six conveying rollers are arranged, two conveying rollers form a group, a conveying belt is in transmission connection between the surfaces of the two conveying rollers, rubber blocking pieces are fixed in front of and behind the surface of the conveying belt, ventilation heating holes are formed in the surface of the conveying belt in a penetrating manner, the conveying belts are three, the three conveying belts are staggered up and down, the front surface of the drying box is fixed with a driving motor in a staggered manner, the drying mechanism is accelerated through conveying, so that the sludge can be continuously in a vibration state when being conveyed, the contact area of the sludge and hot air can be increased, the sludge can be effectively prevented from falling, and the drying efficiency and effect of the sludge are improved.

(2) This a multilayer rapid draing chamber system and temperature control method for mud low temperature mummification through being provided with on handling the section of thick bamboo and turning over stir-fry mummification mechanism, turns over stir-fry mummification mechanism including fixing on handling a section of thick bamboo surface turn over stir-fry motor and fix the air heater at the base top, handles a section of thick bamboo surface fixation and has a ring pipe, and the air outlet of air heater passes through the hose and communicates with the surface of ring pipe, through turning over the setting of stir-fry mummification mechanism, is convenient for carry out reheating treatment to the mud after the mummification is handled, further improves the mummification.

(3) The multi-layer quick drying cavity system for low-temperature sludge drying and the temperature control method have the advantages that the temperature control adjusting mechanism is arranged on the adjusting cylinder, the temperature control adjusting mechanism comprises the adjusting motor fixed on the surface of the adjusting cylinder and the circular plate fixed on the inner wall of the adjusting cylinder, the output shaft of the adjusting motor is fixed with the adjusting shaft penetrating into the adjusting cylinder, the surface of the adjusting shaft is fixed with the first bevel gear, the temperature inside the drying box can be quickly controlled through the setting of the temperature control adjusting mechanism, the structure is simple, the adjustment is convenient, and the use cost is low.

(4) This a multilayer rapid drying chamber system and temperature control method for mummification of mud low temperature, through be provided with extrusion collection mechanism on the frame plate, extrusion collection mechanism is including fixing the collecting box at the frame plate top, the top intercommunication of collecting box has row material pipe, arrange the top of material pipe run through the base and with the bottom intercommunication of handling a section of thick bamboo, sliding connection has the clamp plate between all around of collecting box inner wall, through the setting of extrusion collection mechanism, be convenient for extrude the mud after the mummification, make mud occupation space reduce, the post processing of being convenient for.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is a perspective sectional view of the drying box structure of the present invention;

FIG. 3 is a perspective view of the structure of the drying box of the present invention;

FIG. 4 is an enlarged view of a portion of the invention at A in FIG. 3;

FIG. 5 is a perspective view of a partial structure of the conveying acceleration drying mechanism of the present invention;

FIG. 6 is a rear cross-sectional view of the drying box structure of the present invention;

FIG. 7 is a side cross-sectional view of an adjustment barrel construction of the present invention;

FIG. 8 is a perspective view of a treatment canister construction of the present invention;

FIG. 9 is a perspective view of a part of the stir-frying and drying mechanism of the present invention;

FIG. 10 is a front cross-sectional view of the collection box structure of the present invention.

In the figure: 1-base, 2-drying box, 3-support rod, 4-support foot, 5-frame plate, 6-conveying acceleration drying mechanism, 61-conveying roller, 62-conveying belt, 63-rubber baffle, 64-ventilation heating hole, 65-driving motor, 66-shaking motor, 67-driving shaft, 68-cam, 69-sliding rod, 610-fixing plate, 611-reset spring, 612-E type rod, 613-transverse plate, 614-shaking projection, 615-sliding chute, 7-stir-frying drying mechanism, 71-stir-frying motor, 72-hot air machine, 73-annular tube, 74-hose, 75-air outlet nozzle, 76-turnover shaft, 77-hollow plate, 78-extension plate, 8-temperature control adjusting mechanism, 81-adjusting motor, 82-circular plate, 83-adjusting shaft, 84-first bevel gear, 85-connecting shaft, 86-second bevel gear, 87-air inlet groove, 88-baffle, 9-extrusion collecting mechanism, 91-collecting box, 92-discharging pipe, 93-pressing plate, 94-telescopic cylinder, 95-sealing door, 10-condensing equipment, 11-drying heating equipment, 12-first straight pipe, 13-guide pipe, 14-induced draft fan, 15-L type pipe, 16-adjusting cylinder, 17-second straight pipe, 18-folding pipe, 19-processing cylinder, 20-feeding hopper, 21-square pipe discharging, 22-display and 23-temperature sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-10, the present invention provides a technical solution: a multilayer quick drying cavity system for low-temperature drying of sludge comprises a base 1 and a drying box 2 arranged above the base 1, wherein the drying box 2 is fixed at the top of the base 1 through a support rod 3, support legs 4 are fixed at four corners of the bottom of the base 1, a frame plate 5 is fixed between the surfaces of the three support legs 4, a condensing device 10 is fixed at the top of the base 1 and is electrically connected with an external power supply and is controlled through a control switch, a drying and heating device 11 is fixed at the top of the base 1 and is electrically connected with the external power supply and is controlled through the control switch, the condensing device 10 is communicated with the drying and heating device 11 through a first straight pipe 12, an air inlet of the drying and heating device 11 is communicated with the top of the drying box 2 through a guide pipe 13, an induced draft fan 14 is fixed at the top of the base 1 and is electrically connected with the external power supply and is controlled through the control switch, an air inlet of the induced draft fan 14 is communicated with an air outlet of the drying and heating device 11 through an L-shaped pipe 15, the top of base 1 is fixed with an adjusting cylinder 16, the right side of adjusting cylinder 16 and the air outlet of draught fan 14 pass through second straight tube 17 intercommunication, the left side of adjusting cylinder 16 is through the bottom intercommunication of a pipe 18 and stoving case 2, be provided with on the stoving case 2 and carry drying mechanism 6 with higher speed, the top of base 1 is fixed with a processing section of thick bamboo 19, be provided with on the processing section of thick bamboo 19 and turn over stir-fry drying mechanism 7, be provided with control by temperature change adjustment mechanism 8 on the adjusting cylinder 16, be provided with extrusion collection mechanism 9 on the frame plate 5.

The conveying acceleration drying mechanism 6 comprises conveying rollers 61 which are rotatably connected between two sides of the inner wall of the drying box 2, six conveying rollers 61 are arranged, two conveying rollers 61 form a group, conveying belts 62 are connected between the surfaces of the two conveying rollers 61 in a transmission manner, rubber blocking pieces 63 are fixed in front and at the back of the surfaces of the conveying belts 62, ventilation heating holes 64 are formed in the surfaces of the conveying belts 62 in a penetrating manner and have ventilation effects and can accelerate drying of sludge, three conveying belts 62 are arranged, the three conveying belts 62 are arranged in a vertically staggered manner, driving motors 65 are fixed on the front side of the drying box 2 in a staggered manner and are electrically connected with an external power supply and controlled through a control switch, the output shafts of the adjacent driving motors 65 are fixedly connected with one ends of the conveying rollers 61, a shaking motor 66 is fixed on the back side of the drying box 2 through a connecting rod and is electrically connected with the external power supply and controlled through the control switch, a driving shaft 67 is fixed on an output shaft of the shaking motor 66, a cam 68 is fixed on the surface of the driving shaft 67, a sliding rod 69 is penetrated and slid on the back surface of the drying box 2, a fixing plate 610 is fixed on the back surface of the drying box 2, a return spring 611 is fixed on the bottom of the fixing plate 610, the bottom end of the return spring 611 is fixedly connected with the surface of the sliding rod 69, the surface of the cam 68 is contacted with the surface of the sliding rod 69, an E-shaped rod 612 is fixed on one end of the sliding rod 69, a transverse plate 613 is fixed on the tail end of the E-shaped rod 612, a shaking projection 614 is fixed on the top of the transverse plate 613, and a sliding groove 615 matched with the sliding rod 69 is penetrated and opened on the back surface of the drying box 2.

In the embodiment of the invention, the stir-frying and drying mechanism 7 comprises a stir-frying motor 71 fixed on the surface of the treatment barrel 19 and a hot air blower 72 fixed on the top of the base 1, wherein the stir-frying motor 71 and the hot air blower 72 are both electrically connected with an external power supply and are controlled by a control switch, a ring-shaped pipe 73 is fixed on the surface of the treatment barrel 19, and an air outlet of the hot air blower 72 is communicated with the surface of the ring-shaped pipe 73 through a hose 74.

In the embodiment of the invention, the inner side of the surface of the annular pipe 73 is communicated with an air outlet nozzle 75 penetrating into the processing barrel 19, and an output shaft of the stir-frying motor 71 is fixed with a turnover shaft 76 penetrating into the processing barrel 19.

In the embodiment of the invention, a hollow plate 77 is fixed on the surface of the turning shaft 76, an extension plate 78 is connected to the inner wall of the hollow plate 77 in a sliding manner, and a spring is fixed between the extension plate 78 and the inner wall of the hollow plate 77.

In the embodiment of the present invention, the temperature control adjustment mechanism 8 includes an adjustment motor 81 fixed on the surface of the adjustment cylinder 16 and a circular plate 82 fixed on the inner wall of the adjustment cylinder 16, the adjustment motor 81 is electrically connected to an external power supply and is controlled by a control switch, an output shaft of the adjustment motor 81 is fixed with an adjustment shaft 83 penetrating into the adjustment cylinder 16, and a surface of the adjustment shaft 83 is fixed with a first bevel gear 84.

In the embodiment of the invention, a connecting shaft 85 is rotatably connected to the side surface of the circular plate 82, a second bevel gear 86 engaged with the first bevel gear 84 is fixed on the surface of the connecting shaft 85, an air inlet groove 87 is formed in the surface of the circular plate 82 in a penetrating manner, a baffle 88 is fixed on the surface of the connecting shaft 85, and the side surface of the baffle 88 is attached to the side surface of the circular plate 82.

In the embodiment of the invention, the top of the drying box 2 is communicated with a feed hopper 20, the bottom of the drying box 2 is communicated with a discharging square pipe 21, the discharging square pipe 21 is positioned right above the processing cylinder 19, the front of the drying box 2 is fixed with a display 22, the inner wall of the drying box 2 is fixed with a temperature sensor 23, the model of the temperature sensor 23 is JCJ175A, and the temperature sensor 23 is connected with the display 22.

In the embodiment of the invention, the extrusion collecting mechanism 9 comprises a collecting box 91 fixed on the top of the frame plate 5, the top of the collecting box 91 is communicated with a discharging pipe 92, the surface of the collecting box 91 is fixed with a switch valve, the top end of the discharging pipe 92 penetrates through the base 1 and is communicated with the bottom of the treatment barrel 19, a pressing plate 93 is connected between the peripheries of the inner wall of the collecting box 91 in a sliding manner, a telescopic cylinder 94 is fixed on the right side of the inner wall of the collecting box 91 and is electrically connected with an external power supply and controlled by a control switch, the left end of the telescopic cylinder 94 is fixedly connected with the right side of the pressing plate 93, the bottom of the collecting box 91 is hinged with a sealing door 95, and the bottom of the frame plate 5 is penetrated with a through groove matched with the sealing door 95.

The invention also discloses a temperature control method of the multilayer quick drying cavity system for low-temperature sludge drying, which specifically comprises the following steps:

s1, starting the drying and heating device 11 and the induced draft fan 14, conveying hot air to the drying box 2 through the second straight pipe 17, the adjusting cylinder 16 and the folding pipe 18 in sequence, and displaying temperature data in the drying box 2 through the temperature sensor 23 through the display 22;

s2, when the temperature inside the drying box 2 needs to be reduced, the adjusting motor 81 is started, the adjusting shaft 83 drives the first bevel gear 84 to rotate, the second bevel gear 86 drives the connecting shaft 85 to rotate, the baffle 88 can be driven to rotate, the air inlet groove 87 is shielded by the baffle 88, the speed of hot air entering the drying box 2 is controlled, the smaller the leakage area of the air inlet groove 87 is, the lower the temperature inside the drying box 2 is, and otherwise, the higher the temperature is.

In the embodiment of the present invention, the adjustment motor 81 in step S2 is a three-phase ac asynchronous motor.

In the invention, it is understood that the sludge is loose wet sludge and has strong air permeability before being dried and dehumidified. The dry air flow can pass through the sludge gap, so that the drying capacity of the dry air is improved, and the drying rate of wet sludge is increased.

And those not described in detail in this specification are well within the skill of those in the art.

When the drying and heating device works, the drying and heating device 11 and the induced draft fan 14 are started, hot air is conveyed to the drying box 2 through the second straight pipe 17, the adjusting cylinder 16 and the folding pipe 18 in sequence, sludge to be dried is put in through the feed hopper 20, the three driving motors 65 are started, the sludge is dried and conveyed through the three conveying belts 62, the shaking motor 66 is started, the driving shaft 67 drives the cam 68 to rotate, the sliding rod 69 drives the E-shaped rod 612 to continuously move up and down, the three transverse plates 613 continuously move up and down, the three conveying belts 62 can continuously vibrate in a small amplitude by matching with the shaking protrusions 614, so that the sludge on the conveying belts 62 can vibrate, the contact area with hot air in the drying box 2 is increased, the hot air enters the condensing device 10 through the guide pipe 13 for condensation, then enters the drying and heating device 11 through the first straight pipe 12 for reheating and recycling, the mud after the mummification passes through ejection of compact side pipe 21 and gets into in handling section of thick bamboo 19, start air heater 72, it is inside to handle section of thick bamboo 19 that hot-blast spout through air-out shower nozzle 75, start simultaneously and turn over stir-fry motor 71, make hollow plate 77 and extension board 78 rotate, turn over the stir-fry to the mud of handling section of thick bamboo 19 inside, the cooperation is hot-blast makes mud can thoroughly mummification, open the ooff valve on row material pipe 92 after the mummification is accomplished, carry the mud after the mummification to inside collecting box 91, then start telescopic cylinder 94, promote clamp plate 93 through telescopic cylinder 94 and extrude mud, reduce the occupation space of mud.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.