A microwave sludge drying treatment system

Abstract

The present invention discloses a microwave sludge drying treatment system, which relates to the technical field of sludge treatment. It includes a conveyor belt passing through a microwave drying cavity, and a uniform leveling mechanism is provided on the conveyor belt. The uniform leveling mechanism includes: a leveling component, which includes a cross beam plate located above the conveyor belt. A plurality of spaced slots are formed on one side edge of the cross beam plate, and each of the spaced slots is fitted with a cutting unit. Each cutting unit can cut the sludge in the spaced slot flush when in a moving state, and the conveyor belt provides driving force for the movement of the cutting unit during operation. By providing a uniform leveling mechanism on the conveyor belt for feeding at the front end of the microwave drying cavity, on the one hand, it can make the sludge particles have an appropriate thickness on the conveyor belt to ensure complete penetration of microwaves, and on the other hand, it can avoid the generation of large pieces of sludge, which helps the sludge particles to achieve excellent and efficient drying effects after passing through the microwave drying cavity.

Description

Technical Field

[0001] The present invention relates to the technical field of sludge treatment, and particularly to a microwave sludge drying treatment system. Background Art

[0002] Sludge drying treatment can greatly reduce the water content of sludge, reduce the volume and weight of sludge, and facilitate subsequent transportation and treatment. For example, the dried sludge can also be reused as fertilizers, soil conditioners, building materials, etc.;

[0003] There are various forms of sludge drying treatment. For example, the Chinese patent publication number is "CN105668975B", and the name of this patent is "Sludge microwave drying treatment method", which includes "firstly, heat treatment is adopted, and then microwave treatment is adopted, which can significantly reduce the water content of sludge", and the Chinese patent publication number is "CN204675978U", and the name of this patent is "Microwave sludge dryer", which includes "a sludge conveyor belt, a sludge conveying drive mechanism, a microwave action cavity, and a steam discharge device; the main part of the sludge conveyor belt passes through the microwave action cavity, and the sludge conveyed by the sludge conveyor belt is dried by the microwave emitted by the microwave action cavity";

[0004] In the existing above-mentioned schemes, the sludge particles are dried by passing through the microwave action cavity through the conveyor belt. However, due to the limited penetration of microwaves, if the sludge particles are stacked too thickly, it is easy to affect the drying efficiency and effect. The existing common treatment method is to set a scraper on the conveyor belt and adjust the spacing distance between the scraper and the conveyor belt that allows the sludge particles to pass through, so as to control the paving thickness of the sludge particles on the conveyor belt. However, the disadvantage of the above scheme is that due to the high water content and low hardness of the sludge particles, there is also a certain adhesiveness between the sludge particles, and it is easy to occur that the stacked sludge particles are extruded and deformed when passing through the scraper, resulting in the extrusion and aggregation of multiple sludge particles into large lumps, which is still not conducive to subsequent transportation and microwave drying. Summary of the Invention

[0005] The purpose of the present invention is to provide a microwave sludge drying treatment system to solve the deficiencies in the above-mentioned prior art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A microwave sludge drying treatment system includes a conveyor belt passing through a microwave drying cavity, and a uniform flattening mechanism is provided on the conveyor belt. The uniform flattening mechanism includes:

[0008] A flush assembly, comprising a cross beam plate located above the conveyor belt, a plurality of spacing grooves being provided on one side of the cross beam plate, each of the spacing grooves being adapted to be provided with a cutting unit, each of the cutting units being able to flushly cut off the sludge in the spacing groove in a moving state;

[0009] The transmission assembly comprises a bridge plate connected to each cutting unit, wherein the bridge plate is connected to the driving roller of the conveyor belt through a reciprocating driving unit, and the conveyor belt provides driving force for the movement of the cutting unit during operation.

[0010] Preferably, the plate surface of the bridge plate is parallel to the plate surface of the cross beam plate, and two through holes are movably penetrated at the end of the plate body of the bridge plate, and a guide rod is movably penetrated in each of the through holes, and support plates fixed to the cross beam plate are provided at both ends of the bridge plate, and each end of the guide rod is fixed to its corresponding support plate, and the bridge plate can perform horizontal reciprocating motion between the two support plates.

[0011] Preferably, the cutting unit includes a cutting rod located in the spacing groove, a vertical rod is rotatably installed on one end of the cutting rod, the top end of the vertical rod is fixed to the bridge plate, and a moving wheel that rolls on the crossbeam plate is rotatably installed on the bottom end of the vertical rod, the wheel axle of the moving wheel is coaxially fixed with the rod body of the cutting rod, and the cutting rod can be driven by the bridge plate to rotate and translate in the spacing groove.

[0012] Preferably, the cutting rod includes a gear rod fixed coaxially with the axle of the moving wheel, a sleeve is movably sleeved on the outer side of the gear rod, a through opening is opened on the tube body of the sleeve, a blade is movably inserted in the through opening, a tooth surface portion meshing with the gear rod is fixed on the side of the blade located in the sleeve, and the blade can switch its state according to the direction of the gear rod.

[0013] Preferably, a rolling board is arranged parallel to the bottom of the bridge plate, and the rolling board and the bridge plate are connected by a lifting assembly. When the bridge plate moves in a horizontal positive direction, the lifting assembly moves the rolling board toward the cross beam plate, and when the bridge plate moves in a horizontal reverse direction, the lifting assembly moves the rolling board away from the cross beam plate.

[0014] Preferably, the lifting assembly includes an internal threaded tube vertically connected to the top of the rolling board, a threaded rod is spirally inserted in the tube body of the internal threaded tube, the top end of the threaded rod movably passes through the bridge plate, and a rack portion is provided on the side of the guide rod, and a gear fixed to the threaded rod is meshed on the rack portion.

[0015] Preferably, the bottom end of the tube body of the internal threaded tube is movably inserted into the bottom of the rubbing and rolling board, a baffle is fixed to the bottom end of the internal threaded tube, a recessed groove for accommodating the baffle is provided at the bottom of the rubbing and rolling board, the bottom surface of the baffle is flush with the bottom surface of the rubbing and rolling board, and the top of the baffle is connected to the bottom of the recessed groove by a spring.

[0016] Preferably, a plurality of long openings are opened on the plate body of the cross beam plate, and the length direction line of each of the long openings is parallel to the moving direction line of the bridge plate.

[0017] Preferably, the reciprocating drive unit includes a driving shaft located above the bridge plate, both ends of the driving shaft are rotatably connected to the corresponding support plates, a tilting ring is fixedly sleeved on the rod body of the driving shaft, both sides of the tilting ring are provided with stop columns fixedly mounted on the bridge plate, a shaft sleeve in contact with the tilting ring is movably sleeved on the stop column, and both ends of the driving shaft are transmission-connected to the driving roller on the conveyor belt through a sprocket unit.

[0018] Preferably, a chamfered portion is provided on the groove wall surface of the spacing groove.

[0019] In the above technical scheme, a microwave sludge drying treatment system provided by the present invention, by arranging a uniform leveling mechanism on the conveyor belt feeding the material at the front end of the microwave drying cavity, can, on the one hand, make the sludge particles on the conveyor belt be in a suitable thickness on the conveyor belt when entering the microwave drying cavity, and on the other hand, can avoid the squeezing and stacking of sludge during the leveling process, prevent the generation of large sludge, ensure the stability of the sludge particle leveling process, and has a simple structure, which helps the sludge particles to achieve excellent and efficient drying effect when passing through the microwave drying cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 A schematic diagram of a conveyor belt running through a microwave drying cavity of a microwave sludge drying treatment system of the present invention;

[0022] Figure 2 It is a partially enlarged schematic diagram of a flush component of a microwave sludge drying treatment system of the present invention;

[0023] Figure 3 It is a structural schematic diagram of a reciprocating drive unit of a microwave sludge drying treatment system of the present invention;

[0024] Figure 4 For the present invention Figure 2 Schematic cross-sectional view at A-A of the bridging plate in the present invention;

[0025] Figure 5 Schematic view of the crossbeam plate of a microwave sludge drying and treatment system of the present invention;

[0026] Figure 6 Schematic view of the spiral distribution of the blades of a microwave sludge drying and treatment system of the present invention on the sleeve;

[0027] Figure 7 For the present invention Figure 6 Schematic cross-sectional view at B-B in the present invention.

[0028] Explanation of reference numerals:

[0029] 1, conveyor belt; 11, driving roller; 2, leveling assembly; 21, crossbeam plate; 22, spacing grooves; 23, cutting unit; 231, cutting rod; 2311, toothed bar; 2312, sleeve; 2313, through hole; 2314, blade; 2315, tooth surface; 232, vertical rod; 233, moving wheel; 24, long slot; 25, inclined surface; 3, transmission assembly; 31, bridging plate; 32, reciprocating drive unit; 321, drive shaft rod; 322, inclined ring; 323, stop post; 324, shaft sleeve; 325, sprocket unit; 33, through perforation; 34, guide rail rod; 35, support plate; 36, rolling plate; 4, lifting assembly; 41, internally threaded tube; 42, threaded rod; 43, rack portion; 44, gear; 45, baffle; 46, recessed groove; 47, spring; 5, clamping groove; 6, support wheel; 7, slide rail groove; 8, slider. Detailed implementation manners

[0030] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] Please refer to Figures 1-7 , a microwave sludge drying and treatment system provided by an embodiment of the present invention includes a conveyor belt 1 passing through a microwave drying cavity, and a uniform leveling mechanism is provided on the conveyor belt 1. The uniform leveling mechanism includes:

[0032] A leveling assembly 2, which includes a crossbeam plate 21 located above the conveyor belt 1. A plurality of spacing grooves 22 are opened on one side edge of the crossbeam plate 21, and each spacing groove 22 is adapted with a cutting unit 23. Each cutting unit 23 can cut the sludge in the spacing groove 22 flat in a moving state;

[0033] The transmission assembly 3 includes a bridging plate 31 connected to each cutting unit 23. The bridging plate 31 is drivingly connected to the driving roller 11 of the conveyor belt 1 through a reciprocating driving unit 32. During the operation of the conveyor belt 1, driving force is provided for the movement of the cutting unit 23;

[0034] Specifically, the conveyor belt 1 is driven by the driving roller 11 on the conveyor table, so that the conveyor belt 1 can transport sludge particles through the microwave drying cavity for drying. The plate body of the cross beam plate 21 is a thin plate, the plate surface of the cross beam plate 21 is parallel to the horizontal plane, and the distance value between the cross beam plate 21 and the conveying surface of the conveyor belt 1 is the thickness value of the sludge particles during drying in the microwave drying cavity. The distance between the cross beam plate 21 and the conveying surface of the conveyor belt 1 can be adjusted according to the penetration power of the microwave drying cavity, so as to be adapted to sludge particles of different diameters;

[0035] Among them, the plate surface of the cross beam plate 21 is parallel to the horizontal plane, the opening directions of the respective spaced grooves 22 are all opposite to the conveying direction of the conveyor belt 1, the conveyor belt 1 can convey sludge particles into the spaced grooves 22, and the part of the sludge particles on the conveyor belt 1 that is higher than the cross beam plate 21 will enter the corresponding spaced grooves 22 as it is conveyed. Then, each cutting unit 23 can cut the sludge in the spaced grooves 22 flush in the moving state, so as to keep the height of the sludge particles on the conveyor belt 1 in a flush state. The inclined surface part 25 is provided on the groove wall surface of the spaced groove 22. On the other hand, the cut sludge particles will reach the cross beam plate 21 through the inclined surface part 25. When the sludge particles on the conveyor belt enter the microwave drying cavity, the sludge particles on the conveyor belt are in a suitable thickness that can ensure complete microwave penetration. On the other hand, it can avoid the occurrence of extrusion and stacking of sludge during the leveling process, prevent the generation of large pieces of sludge, ensure the stability of the sludge particle leveling process, and has a simple structure, which helps the sludge particles to achieve excellent and efficient drying effects after passing through the microwave drying cavity;

[0036] In other words, the sludge particles move towards the microwave drying cavity through the conveyor belt 1. At the entrance of the microwave drying cavity, a leveling assembly 2 composed of a cross beam plate 21, spaced grooves 22, and cutting units 23 is provided. The leveling assembly 2 levels the sludge particles about to enter the microwave drying cavity, which is beneficial for the sludge particles to be in a suitable thickness on the conveyor belt that can ensure complete microwave penetration;

[0037] Among them, the cross beam plate 21 is arranged parallel above the conveyor belt 1. When the sludge particles pass through the cross beam plate 21 through the conveyor belt 1, the part of the sludge particles higher than the cross beam plate 21 passes above the cross beam plate 21, and the part of the sludge particles lower than the cross beam plate 21 passes between the cross beam plate 21 and the conveyor belt 1;

[0038] Moreover, during the process of sludge particles passing through the cross beam plate 21, the sludge particles higher than the cross beam plate 21 are evenly dispersed into each spacer groove 22, realizing the equal division of sludge particles, reducing the cutting stroke of sludge particles, and being conducive to accelerating the cutting efficiency of sludge particles;

[0039] The movement trajectory of the cutting unit 23 is perpendicular to the movement path of the sludge particles on the horizontal plane. Thus, the cutting unit 23 in the moving state cuts the sludge in the spacer groove 22 flush, enabling the sludge particles in the upper and lower parts of the cross beam plate 21 to be quickly separated, which is conducive to improving the fluidity of the sludge particles when passing through the cross beam plate 21;

[0040] It should be further noted that the movement state of the cutting unit 23 is a reciprocating linear motion. The cutting stroke distance of the cutting unit 23 is adapted to the groove width distance of the spacer groove 22. The cutting unit 23 is drivingly connected to the driving roller 11 of the conveyor belt 1 through the transmission assembly 3. The transmission assembly 3 is composed of a bridging plate 31 and a reciprocating driving unit 32. The reciprocating driving unit 32 can transmit the power on the driving roller 11 of the conveyor belt 1 to the cutting unit 23 and keep the movement trajectory of the cutting unit 23 in a reciprocating linear motion state.

[0041] In another embodiment provided by the present invention, the plate surface of the bridging plate 31 is parallel to the plate surface of the cross beam plate 21. The length direction and the movement direction of the bridging plate 31 are both skew perpendicular to the movement direction line of the conveyor belt 1. Two through holes 33 are movably penetrated through the end part of the plate body of the bridging plate 31. The length direction line of the through holes 33 is parallel to the length direction line of the bridging plate 31. Guide rail rods 34 are movably penetrated through each through hole 33. The two guide rail rods 34 are parallel to each other. A plurality of support wheels 6 are rotatably installed on the inner wall of the through holes 33. The wheel bodies of each support wheel 6 are in rolling contact with the rod surface of the guide rail rod 34, thereby reducing the frictional resistance between the guide rail rod 34 and the through hole 33. Both ends of the guide rail rod 34 extend out of the outside of the through hole 33. Support plates 35 fixed to the cross beam plate 21 are provided at both ends of the bridging plate 31. The end part of each guide rail rod 34 is fixed to the corresponding support plate 35. The bridging plate 31 can perform a horizontal reciprocating movement between the two support plates 35;

[0042] Wherein, a plurality of clamping grooves 5 are formed on the side surface of the plate body of the support plate 35. The length direction line of each clamping groove 5 is parallel to the horizontal plane. The clamping groove 5 can be clamped and adapted to the cross beam plate 21, thereby facilitating the adjustment of the distance between the cross beam plate 21 and the conveyor belt 1. The bottom end of the support plate 35 is perpendicularly fixed to the conveyor belt 1 on the conveying table. In actual use, when the bridging plate 31 makes a reciprocating movement, it drives the cutting unit 23 in the spacer groove 22 to move synchronously on the horizontal plane, so as to be able to cut the sludge in the spacer groove 22 flush.

[0043] Another embodiment provided by the present invention, the cutting unit 23 includes a cutting rod 231 located in the spacing groove 22. The length direction line of each cutting rod 23 is parallel to the conveying direction line of the conveyor belt 1. One end of the cutting rod 231 is rotatably installed with a vertical rod 232. The length direction line of the vertical rod 232 is perpendicular to the horizontal plane. The top end of the vertical rod 232 is fixed to the bridging plate 31. The bottom end of the vertical rod 232 is rotatably installed with a moving wheel 233 that rolls on the cross beam plate 21. The wheel axle of the moving wheel 233 is coaxially fixed to the rod body of the cutting rod 231. The cutting rod 231 can be driven by the bridging plate 31 to perform rotational translation in the spacing groove 22;

[0044] During the actual use process, the reciprocating movement of the bridging plate 31 drives the cutting rod 23 to move horizontally through the vertical rod 232. For example, when the bridging plate 31 moves forward, at this time, as the bridging plate 31 moves forward, the vertical rod 232 also moves forward. At this time, the moving wheel 233 also rolls forward on the cross beam plate 21, thereby driving the cutting rod 231 to move horizontally forward in the spacing groove 22. At the same time, the cutting rod 231 also rotates forward, so that while the sludge particles in the spacing groove 22 are squeezed and clamped off, the sludge particles can also be subjected to the milling cutting force generated by the rotation of the cutting rod 231, improving the cutting effect on the sludge particles. That is to say, during the process of cutting the sludge particles, in addition to being subjected to the horizontal extrusion clamping force of the cutting rod 231, the sludge particles are also subjected to the milling cutting force generated by the axial rotation of the cutting rod 231. Under the coordinated cooperation of the two forces, the sludge particles can be effectively cut off.

[0045] Another embodiment provided by the present invention, the cutting rod 231 includes a tooth bar 2311 coaxially fixed to the wheel axle of the moving wheel 233. A sleeve 2312 is movably sleeved outside the tooth bar 2311. A through hole 2313 is fixed on the tube body of the sleeve 2312. A blade 2314 is movably inserted into the through hole 2313. A tooth surface 2315 meshing with the tooth bar 2311 is fixed on the side surface of the blade 2314 located inside the sleeve 2312. The tooth surface 2315 can be selected as a rack block. The blade 2314 can switch its state according to the different rotation directions of the tooth bar 2311. Specifically, the length value of the blade 2314 is greater than the diameter value of the sleeve 2312. One end of the blade 2314 always extends outside the through hole 2313. For example, the two ends of the blade 2314 are respectively a first cutting edge end and a second cutting edge end. When the first cutting edge end of the blade 2314 extends out of the through hole 2313, the second cutting edge end of the blade 2314 is located inside the sleeve 2312. On the contrary, when the second cutting edge end of the blade 2314 extends out of the through hole 2313, the first cutting edge end of the blade 2314 is located inside the sleeve 2312;

[0046] That is to say, when the cutting rod 231 rotates forward, at this time the toothed rod 2311 also rotates forward. Since the sleeve 2312 is sleeved on the toothed rod 2311, at the moment when the toothed rod 2311 rotates forward, the sleeve 2312 maintains its original inertial stationary state. The toothed rod 2311 transmits the driving force to the blade 2314 through the tooth surface 2315, so that the first cutting edge end of the blade 2314 extends out of the through hole 2313. The first cutting edge end of the blade 2314 forms a milling edge on the surface of the sleeve 2312, which is beneficial to milling and cutting the sludge particles. When the tooth surface 2315 contacts the inner wall of the sleeve 2312, at this time the first cutting edge end of the blade 2314 is in the maximum extended state, and at this time the sleeve 2312 also makes a forward axial rotation movement under the driving action of the blade 2314 and the tooth surface 2315, so as to generate a milling and cutting acting force on the sludge particles;

[0047] Similarly, when the bridging plate 31 moves backward, the cutting rod 231 rotates backward. At the moment when the toothed rod 2311 rotates backward, the sleeve 2312 maintains its original inertial forward rotation state. At this time, the toothed rod 2311 transmits the driving force to the blade 2314 through the tooth surface 2315, so that the second cutting edge end of the blade 2314 forms a milling edge on the surface of the sleeve 2312, and the first cutting edge end of the blade 2314 retracts into the sleeve 2312. During the retraction process of the blade 2314, the sludge adhered to the first cutting edge end of the blade 2314 is removed. Then when the tooth surface 2315 contacts the inner wall of the sleeve 2312, at this time the second cutting edge end of the blade 2314 is in the maximum extended state, and at this time the sleeve 2312 also makes a backward axial rotation movement under the driving action of the blade 2314 and the tooth surface 2315, so as to generate a milling and cutting acting force on the sludge particles;

[0048] That is to say, the rotation direction of the cutting rod 231 always switches with the movement direction of the bridging plate 31, and the sludge adhered to the blade 2314 of the cutting rod 231 is removed during the switching process, maintaining a good cutting effect.

[0049] Another embodiment provided by the present invention divides the sleeve 2312 into multiple annular region segments in the length direction. Through holes 2313 are provided on each annular region segment of the sleeve 2312. Blades 2314 are movably inserted into each through hole 2313. Tooth surface parts 2315 composed of rack blocks are fixed on the sides of the blades 2314. It should be particularly noted that the through holes 2313 are long strip holes, and the included angle between the length direction line of the through holes 2313 and the axis line of the sleeve 2312 is an acute angle. For example, the included angle can be 5 degrees, 10 degrees, or 15 degrees. The through holes 2313 on each annular region segment of the sleeve 2312 are arranged in a spiral pattern on the sleeve 2312. That is to say, the parts of the blades 2314 extending out of the sleeve 2312 form a spiral cutting edge on the outside of the sleeve 2312. During actual use, the sludge particles after being cut can be pushed by the spiral cutting edge and move towards the cross beam plate 21, providing assistance for the cut sludge particles to move onto the cross beam plate 21. Moreover, the spiral direction of the spiral cutting edge can be changed according to the telescopic switching of the first cutting edge end and the second cutting edge end of the blade 2314. Thus, no matter whether the cutting rod 231 rotates forward or backward, the driving force of the spiral cutting edge on the cut sludge particles always faces the direction of the cross beam plate 21.

[0050] Another embodiment provided by the present invention has a rolling plate 36 arranged parallel to the bottom of the bridging plate 31. The rolling plate 36 is a flat plate and is located between the cross beam plate 21 and the bridging plate 31. The rolling plate 36 can reciprocate horizontally and move up and down vertically. Specifically, the rolling plate 36 is connected to the bridging plate 31 through a lifting assembly 4. Thus, the rolling plate 36 can move synchronously with the bridging plate 31 in the horizontal direction. When the bridging plate 31 moves forward horizontally, the lifting assembly 4 moves the rolling plate 36 towards the cross beam plate 21. When the bridging plate 31 moves backward horizontally, the lifting assembly 4 moves the rolling plate 36 away from the cross beam plate 21.

[0051] Further, the lifting assembly 4 includes an internally threaded tube 41 vertically connected to the top of the rolling plate 36. A threaded rod 42 is spirally inserted into the tube body of the internally threaded tube 41. The top end of the threaded rod 42 movably penetrates through the bridging plate 31. A rack portion 43 is formed on the side surface of the guide rail rod 34. A gear 44 fixed to the threaded rod 42 meshes with the rack portion 43. The bottom end of the tube body of the internally threaded tube 41 movably penetrates through the bottom of the rolling plate 36. A slide rail groove 7 is formed on the outer side surface of the internally threaded tube 41. The length direction line of the slide rail groove 7 is parallel to the axis line of the internally threaded tube 41. A slider 8 fixed to the rolling plate 36 is slidably fitted in the slide rail groove 7, so as to ensure that the internally threaded tube 41 cannot rotate axially on the rolling plate 36. A baffle 45 is fixed to the bottom end of the internally threaded tube 41. A recessed groove 46 for accommodating the baffle 45 is formed at the bottom of the rolling plate 36. The bottom surface of the baffle 45 is flush with the bottom surface of the rolling plate 36. A spring 47 is connected between the top of the baffle 45 and the bottom of the recessed groove 46. A plurality of long slots 24 are formed on the plate body of the cross beam plate 21. The length direction line of each long slot 24 is parallel to the moving direction line of the bridging plate 31;

[0052] During actual use, for example, when the bridging plate 31 moves forward, at this time, the rolling plate 36 moves forward synchronously with the bridging plate 31 under the connection of the lifting assembly 4. During this process, the gear 44 rolls along the rack portion 43 to drive the threaded rod 42 to rotate axially, so that the internally threaded tube 41 linearly moves downward along the axis of the threaded rod 42. At this time, the sludge particles on the cross beam plate 21 are kneaded and extruded by the rolling plate 36 into a cylindrical structure. As the forward movement of the bridging plate 31 continues, the sludge is kneaded and extruded by the rolling plate 36 and segmented and cut through the long slots 24, and finally falls back to the conveyor belt 1 through the long slots 24;

[0053] It should be further noted that during the extrusion of the sludge particles by the rolling plate 36, the rolling plate 36 can also move upward to a certain extent under the reaction force of the sludge particles, and the spring 47 undergoes a certain tensile deformation, so as to play a certain buffering role;

[0054] When the bridging plate 31 moves backward, at this time, the rolling plate 36 moves backward synchronously with the bridging plate 31 under the connection of the lifting assembly 4. During this process, the gear 44 rolls along the rack portion 43 to drive the threaded rod 42 to rotate axially, so that the internally threaded tube 41 linearly moves upward along the axis of the threaded rod 42, and the rolling plate 36 returns to its original height position;

[0055] In another embodiment of the present invention, the reciprocating drive unit 32 includes a driving shaft rod 321 located above the bridge plate 31, the axis of the driving shaft rod 321 is parallel to the horizontal plane, both ends of the driving shaft rod 321 are rotatably connected to the corresponding support plates 35, a tilting ring 322 is fixedly sleeved on the rod body of the driving shaft rod 321, both sides of the tilting ring 322 are provided with blocking columns 323 fixedly installed with the bridge plate 31, and a shaft sleeve 324 in contact with the tilting ring 322 is movably sleeved on the blocking column 323, and both ends of the driving shaft rod 321 are respectively connected to the driving roller 11 on the conveyor belt 1 through a sprocket unit 325, and the sprocket unit 325 includes sprockets fixed to the ends of the driving shaft rod 321 and the driving roller 11 on the conveyor belt 1, and the two sprockets are connected to each other through a transmission chain.

[0056] During actual use, the driving roller 11 on the conveyor belt 1 provides driving force for the axial rotation of the driving shaft 321 through the sprocket unit 325. The driving shaft 321 drives the tilting ring 322 to rotate during the axial rotation. The tilting ring 322 drives the bridge plate 31 to reciprocate in the forward and reverse directions through the blocking column 323 during the rotation, thereby forming a complete driving chain and providing continuous driving force for the reciprocating motion of the bridge plate 31.

[0057] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A microwave sludge drying treatment system, comprising a conveyor belt (1) passing through a microwave drying cavity, characterized in that: The conveyor belt (1) is provided with a uniform leveling mechanism, and the uniform leveling mechanism comprises: A flush assembly (2), comprising a cross beam (21) located above the conveyor belt (1), a plurality of spacing grooves (22) being provided on one side of the cross beam (21), each of the spacing grooves (22) being adapted to be provided with a cutting unit (23), each of the cutting units (23) being capable of flush cutting the sludge in the spacing groove (22) when in motion; A transmission assembly (3), comprising a bridge plate (31) connected to each cutting unit (23), the bridge plate (31) being transmission-connected to a driving roller (11) of a conveyor belt (1) via a reciprocating driving unit (32), the conveyor belt (1) providing a driving force for the movement of the cutting unit (23) during operation; The plate surface of the bridge plate (31) is parallel to the plate surface of the cross beam plate (21); two through holes (33) are movably penetrated at the plate end of the bridge plate (31); a guide rail rod (34) is movably penetrated in each of the through holes (33); support plates (35) fixed to the cross beam plate (21) are provided at both ends of the bridge plate (31); the ends of each of the guide rail rods (34) are fixed to the corresponding support plates (35); and the bridge plate (31) can reciprocate horizontally between the two support plates (35); The cutting unit (23) comprises a cutting rod (231) located in the spacing groove (22), a vertical rod (232) being rotatably mounted on one end of the cutting rod (231), the top end of the vertical rod (232) being fixed to the bridge plate (31), a moving wheel (233) rolling on the crossbeam plate (21) being rotatably mounted on the bottom end of the vertical rod (232), the wheel axle of the moving wheel (233) being coaxially fixed to the rod body of the cutting rod (231), and the cutting rod (231) being capable of receiving the drive of the bridge plate (31) to rotate and translate in the spacing groove (22); The cutting rod (231) comprises a toothed rod (2311) fixed coaxially with the axle of the moving wheel (233); a sleeve (2312) is movably sleeved on the outer side of the toothed rod (2311); a through opening (2313) is provided on the tube body of the sleeve (2312); a blade (2314) is movably inserted in the through opening (2313); a toothed surface portion (2315) meshing with the toothed rod (2311) is fixed on the side surface of the blade (2314) located in the sleeve (2312); and the blade (2314) can switch states according to the direction of rotation of the toothed rod (2311).

2. A microwave sludge drying treatment system according to claim 1, characterized in that: A rolling plate (36) is arranged parallel to the bottom of the bridge plate (31); the rolling plate (36) and the bridge plate (31) are connected via a lifting assembly (4); when the bridge plate (31) moves in a horizontal positive direction, the lifting assembly (4) moves the rolling plate (36) toward the cross beam plate (21); and when the bridge plate (31) moves in a horizontal reverse direction, the lifting assembly (4) moves the rolling plate (36) away from the cross beam plate (21).

3. A microwave sludge drying treatment system according to claim 2, characterized in that: The lifting assembly (4) comprises an internally threaded tube (41) vertically connected to the top of the rolling plate (36); a threaded rod (42) is spirally inserted into the tube body of the internally threaded tube (41); the top end of the threaded rod (42) movably penetrates the bridge plate (31); a rack portion (43) is provided on the side of the guide rod (34); and a gear (44) is meshed with the rack portion (43) and fixed to the threaded rod (42).

4. A microwave sludge drying treatment system according to claim 3, characterized in that: The bottom end of the tube body of the internally threaded tube (41) movably penetrates the bottom of the rolling plate (36); a baffle (45) is fixed to the bottom end of the internally threaded tube (41); a recessed groove (46) for accommodating the baffle (45) is provided at the bottom of the rolling plate (36); the bottom surface of the baffle (45) is flush with the bottom surface of the rolling plate (36); and the top of the baffle (45) is connected to the bottom of the recessed groove (46) via a spring (47).

5. A microwave sludge drying treatment system according to claim 4, characterized in that: The cross beam plate (21) is provided with a plurality of long openings (24) on its plate body, and the length direction line of each of the long openings (24) is parallel to the moving direction line of the bridge plate (31).

6. A microwave sludge drying treatment system according to claim 5, characterized in that: The reciprocating drive unit (32) comprises a drive shaft (321) located above the bridge plate (31), both ends of the drive shaft (321) being rotatably connected to corresponding support plates (35), a tilting ring (322) being fixedly sleeved on the rod body of the drive shaft (321), both sides of the tilting ring (322) being provided with stop columns (323) fixedly mounted on the bridge plate (31), a shaft sleeve (324) in contact with the tilting ring (322) being movably sleeved on the stop column (323), and both ends of the drive shaft (321) being transmission-connected to a drive roller (11) on the conveyor belt (1) via a sprocket unit (325).

7. A microwave sludge drying treatment system according to claim 6, characterized in that: An inclined portion (25) is provided on the groove wall surface of the spacing groove (22).

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