A modular spiral screening station for solid waste treatment

Abstract

The present invention belongs to the technical field of waste treatment, and specifically is a modular spiral screening station for solid waste treatment, comprising a screening station; a screening mechanism is installed on the screening station; the screening mechanism comprises evenly arranged screening rollers; the screening rollers are rotatably installed on the side plates on both sides; the adjacent screening rollers are connected by chains; spiral blades are installed on the screening rollers; a lower hopper is provided below the screening rollers; a first feeding belt is installed below the lower hopper; a second feeding belt is installed at the outlet position of the screening mechanism; a finished product conveyor belt is installed below the second feeding belt; a plurality of pushing mechanisms are installed on the opposite side of the two side plates; by setting a plurality of pushing mechanisms, the present invention can push the originally accumulated materials to the side of the spiral blade where the materials are not accumulated, and then use the spiral blades to screen this part of the materials again, so that the accumulated materials can be screened multiple times.

Description

Technical Field

[0001] The invention belongs to the technical field of waste treatment, in particular to a modular solid waste treatment spiral screening station. Background Art

[0002] Garbage disposal has always been a hot topic of social concern. How to deal with various types of garbage efficiently and environmentally friendly has always been a headache for technical personnel in the environmental protection industry.

[0003] The mixed garbage generated in daily production and life has a complex composition, mostly containing soil, metal, ceramics, glass, plastic, nylon cloth, wood and other materials. In addition, there are a large number of scrapped wooden products such as thin wood boards, furniture, pallets, etc. every year. After the above two types of waste are torn or crushed by corresponding equipment, the lighter light materials such as plastics, cloth, wood residue and debris are mixed together, with different sizes, which is difficult to handle and the recycling rate is not high. How to screen out the light materials and improve the recycling rate is an urgent problem to be solved.

[0004] Most of the existing technologies use steel wire woven screens for screening. The main problem is that the screen is easily blocked and the screening effect is not ideal. It is difficult to separate slender garbage and light garbage. There are also drum screens for screening. The drum screen is large in size, has a low speed, a small processing capacity, and the screen is damaged and blocked.

[0005] In order to solve this problem, our existing announcement number is CN218049592U, and the subject name is a patent for a modular new type of garbage screening station with single-side spiral shaft fixing and transmission;

[0006] By driving the screening roller to rotate, when processing mixed domestic waste, small materials will leak through the gaps between the blades, and large materials will be pushed and moved along the vertical and horizontal tracks by the spiral blades, thus solving the above problems;

[0007] However, in subsequent work, it was found that when the materials on multiple spiral blades are pushed by the spiral blades in vertical and horizontal trajectories, the materials will move in a diagonal motion trajectory; when the materials move in a diagonal trajectory, they will push the materials in the same column to approach each other. As the materials continue to be pushed, the materials close to each other will pile up on each other. In the process of materials piling up, some small materials that have not been screened out in time will be mixed in the large materials, and move with the accumulated materials, and eventually leave the screening station, thereby reducing the screening effect of some materials. Summary of the invention

[0008] In order to make up for the shortcomings of the prior art and solve the above technical problems, the present invention proposes a modular solid waste treatment spiral screening station. By setting up multiple pushing mechanisms, the originally accumulated materials can be pushed to the side of the spiral blade where the materials are not accumulated, and then the spiral blade is used again to screen the part of the materials, so that the accumulated materials can be screened multiple times, thereby further improving the screening effect of the materials. The specific structure of the present invention is as follows:

[0009] A modular solid waste treatment spiral screening station comprises a screening station; a screening mechanism is installed on the screening station; the screening mechanism comprises evenly arranged screening rollers; the screening rollers are rotatably installed on the side plates on both sides; adjacent screening rollers are connected by chains, and the chains are driven by motors; spiral blades are installed on the screening rollers, and adjacent spiral blades are staggered with each other;

[0010] A lower hopper is provided below the screening roller; a first feeding belt is installed below the lower hopper; a second feeding belt is installed at the exit of the screening mechanism; a finished product conveyor belt is installed below the second feeding belt, and the finished product conveyor belt is close to one side of the first feeding belt and is located below the first feeding belt;

[0011] A plurality of material pushing mechanisms are installed on opposite sides of the two side plates; the material pushing mechanisms include tracks; the tracks are fixedly connected to the side plates on both sides through mounting rods;

[0012] The track comprises a first straight track, a second straight track, a first semicircular track and a second semicircular track, and the first semicircular track and the second semicircular track are respectively fixedly mounted on both sides of the first straight track and the second straight track; the track is in an oblong shape as a whole;

[0013] The outer ring surface of the track is provided with a slide groove, and the slide groove is in an oblong shape; a driving belt is rotatably connected in the slide groove; and the outer ring surface of the driving belt is provided with evenly arranged pusher components;

[0014] The pusher assembly comprises a mounting block; the mounting block is mounted on a driving belt; a T-bar is slidably connected in the vertical direction of the mounting block; a first spring is fixedly connected above the mounting block, and the other end of the first spring is connected to the T-bar; a pusher block is fixedly connected to the bottom of the T-bar; a guide block is fixedly connected to the T-bar above the pusher block; the pusher block located on the first straight rail is aligned with one of the spiral blades therein, and the pusher block intersects with the spiral blade;

[0015] The pusher block located on the second straight rail is located between two spiral blades, and the pusher block does not contact the two spiral blades on both sides;

[0016] Two semicircular rings are arranged under the first semicircular rail and the second semicircular rail, and the semicircular rings are inclined downward toward the opening; the lowest point of the semicircular rings is lower than the lowest point of the guide block, and when the T-bar rotates to the position of the two semicircular rings following the driving belt, the T-bar will rotate between the two semicircular rings; one of the semicircular rings is installed on the side plate through a connecting rod; the other semicircular ring is installed at the bottom of the first semicircular rail or the second semicircular rail through a connecting rod.

[0017] Preferably, the top of the guide block is fixedly connected with evenly arranged gear teeth, and the multiple gear teeth form a circle;

[0018] The bottom of the second straight rail is provided with evenly arranged tooth plates, and the gear teeth are meshed with the tooth plates; the tooth plates are arranged from the middle of the second straight rail and extend to one side close to the second semicircular rail, and adjacent tooth plates are arranged at equal distances;

[0019] Preferably, arc-shaped plates are fixedly connected to both side end surfaces of the pusher block;

[0020] Preferably, the surfaces of the pusher block and the arc-shaped plate are both smooth;

[0021] Preferably, the toothed plate is fixedly mounted on the second straight rail by means of bolts.

[0022] Preferably, a material guiding mechanism is installed at the inlet of the screening mechanism;

[0023] The material guiding mechanism comprises a mounting plate; the mounting plate is mounted on two opposite side plates; the mounting plate is tilted downward;

[0024] A rectangular groove is provided inside the mounting plate; a conveyor belt is rotatably connected to the rectangular groove via a rotating rod;

[0025] The outer ring surface of the conveyor belt is fixedly connected with evenly arranged partitions, and the partition located at the bottom of the conveyor belt intersects with a spiral blade below;

[0026] Preferably, a long plate is fixedly installed in the rectangular groove, and the long plate is located in the inner circle of the conveyor belt;

[0027] The long board is slidably connected with push rods arranged evenly, and the push rods pass through the long board; the bottom of the push rod is fixedly connected with a semicircular block; the semicircular block is fixedly connected with a second spring, and the other end of the second spring is connected to the long board;

[0028] The inner ring surface of the conveyor belt is fixedly connected with evenly arranged arc-shaped protrusions;

[0029] Preferably, a long rod is fixedly connected to the top of the push rod.

[0030] The beneficial effects of the present invention are as follows:

[0031] 1. In a modular spiral screening station for solid waste treatment described in the present invention, after the pushing block pushes the material to the second semicircular rail position, this part of the material will continue to move in an oblique motion trajectory under the push of the spiral blade. In this process, by setting up multiple pushing mechanisms, the originally accumulated material can be pushed to the side of the spiral blade where the material is not accumulated, and then the spiral blade is used again to screen this part of the material, so that the accumulated material can be screened multiple times, thereby further improving the screening effect of the material, and at the same time, it can prevent some small materials from being mixed in the large material and moving out of the screening mechanism.

[0032] 2. The modular spiral screening station for solid waste treatment described in the present invention drives the push block to rotate when the gear teeth pass through the tooth plate. During the rotation of the push block, part of the material can be driven to rotate, and the material rotating with the push block will rotate to the rear position of the pushing block's moving direction. After the gear teeth pass through a tooth plate, the T-bar will be driven to rotate in the opposite direction under the action of the first spring. When the T-bar rotates in the opposite direction, the push block will also be driven to rotate. Since there are multiple tooth plates, forward and reverse rotations will occur when the gear teeth pass through each tooth plate. When the push block rotates, part of the material can be pushed to the rear position of the push block, so that the material pushed by the push block can be released between the two spiral blades in a more dispersed manner, thereby avoiding accumulation of materials, which affects the screening effect of the materials.

[0033] 3. The modular solid waste treatment spiral screening station described in the present invention utilizes a conveyor belt to drive the material to move and discharge at the same time, so that the material can be placed on the spiral blades more evenly, thereby avoiding the placed materials from piling up, which increases the difficulty of screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described below in conjunction with the accompanying drawings.

[0035] Figure 1 It is a schematic diagram of the whole screening station of the present invention;

[0036] Figure 2 It is a structural diagram of the screening mechanism in the present invention;

[0037] Figure 3 It is a structural diagram of the material pushing mechanism in the present invention;

[0038] Figure 4 The present invention Figure 3 A partial enlarged view of the middle part;

[0039] Figure 5 It is an exploded view of the material pushing mechanism in the present invention;

[0040] Figure 6 It is a structural diagram of the material guiding mechanism in the present invention;

[0041] Figure 7 It is an exploded view of the material guiding mechanism in the present invention;

[0042] Figure 8 is a top view of the screening mechanism of the present invention;

[0043] Fig. 9 The present invention Figure 8 Cross-sectional view at BB in the middle.

[0044] Fig.10 The present invention Fig. 9 A partial enlarged view of point C in the middle;

[0045] Fig.11 The present invention Figure 8 Middle DD step section view.

[0046] Fig.12 The present invention Fig.11 A partial enlarged view of point E in the middle;

[0047] Fig.13 The present invention Fig.10 Cross-sectional view at FF.

[0048] Fig.14 The present invention Fig.13 A partial enlarged view of point G in the middle.

[0049] In the figure:

[0050] 1. Screening roller; 11. Side plate; 12. Spiral blade; 13. First feeding belt; 14. Second feeding belt; 15. Finished product conveyor belt; 2. Pushing mechanism; 21. First straight rail; 22. Second straight rail; 23. First semicircular rail; 24. Second semicircular rail; 25. Slide; 26. Driving belt; 3. Mounting block; 31. T-bar; 32. Guide block; 33. Pushing block; 331. Arc plate; 34. Gear teeth; 35. Tooth plate; 4. Semicircular ring; 41. Connecting rod; 5. Material guiding mechanism; 51. Mounting plate; 52. Conveyor belt; 53. Partition plate; 54. Long plate; 55. Pushing rod; 56. Semicircular block; 57. Arc protrusion; 58. Long rod. DETAILED DESCRIPTION

[0051] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0052] Embodiment 1:

[0053] like Figures 1 to 14As shown, a modular solid waste treatment spiral screening station according to the present invention comprises a screening station; a screening mechanism is installed on the screening station; the screening mechanism comprises screening rollers 1 arranged evenly; the screening rollers 1 are rotatably installed on the side plates 11 on both sides; adjacent screening rollers 1 are connected by chains, and the chains are driven by motors; spiral blades 12 are installed on the screening rollers 1, and adjacent spiral blades 12 are staggered with each other;

[0054] A lower hopper is provided below the screening roller 1; a first feeding belt 13 is installed below the lower hopper; a second feeding belt 14 is installed at the outlet of the screening mechanism; a finished product conveyor belt 15 is installed below the second feeding belt 14, and the finished product conveyor belt 15 is close to one side of the first feeding belt 13 and is located below the first feeding belt 13;

[0055] A plurality of material pushing mechanisms 2 are installed on opposite sides of the two side plates 11; the material pushing mechanisms 2 include tracks; the tracks are fixedly connected to the side plates 11 on both sides through mounting rods;

[0056] The track includes a first straight rail 21, a second straight rail 22, a first semicircular rail 23 and a second semicircular rail 24, and the first semicircular rail 23 and the second semicircular rail 24 are fixedly mounted on both sides of the first straight rail 21 and the second straight rail 22 respectively; the track is an oblong shape as a whole;

[0057] The outer ring surface of the track is provided with a slide groove 25, and the slide groove 25 is in an oblong shape; a driving belt 26 is rotatably connected in the slide groove 25; and the outer ring surface of the driving belt 26 is provided with evenly arranged pusher components;

[0058] The pusher assembly includes a mounting block 3; the mounting block 3 is mounted on the driving belt 26; a T-bar 31 is slidably connected in the vertical direction of the mounting block 3; a first spring is fixedly connected to the top of the mounting block 3, and the other end of the first spring is connected to the T-bar 31; a pusher block 33 is fixedly connected to the bottom of the T-bar 31; a guide block 32 is fixedly connected to the T-bar 31 above the pusher block 33; the pusher block 33 located on the first straight rail 21 is aligned with one of the spiral blades 12, and the pusher block 33 intersects with the spiral blade 12;

[0059] The pusher block 33 located on the second straight rail 22 is located between two spiral blades 12, and the pusher block 33 does not contact the two spiral blades 12 on both sides;

[0060] Two semicircular rings 4 are arranged below the first semicircular rail 23 and the second semicircular rail 24, and the semicircular rings 4 are inclined downward toward the opening; the lowest point of the semicircular rings 4 is lower than the lowest point of the guide block 32, and when the T-shaped rod 31 rotates to the position of the two semicircular rings 4 following the driving belt 26, the T-shaped rod 31 will rotate between the two semicircular rings 4; one of the semicircular rings 4 is installed on the side plate 11 through the connecting rod 41; the other semicircular ring 4 is installed at the bottom of the first semicircular rail 23 or the second semicircular rail 24 through the connecting rod 41;

[0061] Specifically, when screening the material, first control the motor to rotate, and when the motor rotates, it will drive one of the chains to rotate. Since the adjacent screening rollers 1 are connected by chains, all the screening rollers 1 will be driven to rotate clockwise from the main viewing direction, and then the material will be transported to the opening position of the screening mechanism. When the material falls on the spiral blades 12 on the screening roller 1 at the opening position, the material will move in an oblique motion trajectory under the rotation of the screening roller 1 and the spiral blades 12. In the process of material movement, small materials will leak out from the gap between two adjacent spiral blades 12, and the leaked The small materials falling down will fall on the first feeding belt 13, and the large materials will continue to move toward the outlet position of the screening mechanism in an oblique motion trajectory under the push of the spiral blade 12. When the large materials fall from the outlet position of the screening mechanism, they will fall on the second feeding belt 14, and then the second feeding belt 14 will discharge the large materials. At the same time, the small materials falling on the first feeding belt 13 will move with the first feeding belt 13. When the small materials fall from the first feeding belt 13, they will fall on the finished product conveyor belt 15, and then move with the finished product conveyor belt 15, and finally fall from the finished product conveyor belt 15, thereby completing the screening of the materials;

[0062] More specifically, since a plurality of pusher mechanisms 2 are installed between the two side plates 11, and since the pusher block 33 on the first straight rail 21 is aligned with one of the spiral blades 12 and intersects with the spiral blade 12, when the spiral blade 12 circulates, the pusher block 33 is pushed to move toward the position of the first semicircular rail 23, and at the same time, the T-bar 31 is driven to move, and the T-bar 31 drives the mounting block 3 to move, and the mounting block 3 drives the driving belt 26 to slide in the slide groove 25 provided on the guide rail, and the rotation direction of the driving belt 26 is counterclockwise when viewed from above. When the pusher block 33 When the pusher block 33 rotates to the position of the first semicircular rail 23, the rear pusher block 33 will continue to intersect with the spiral blade 12, thereby continuously driving the drive belt 26 to rotate in a circle. When the pusher block 33 rotates to the bottom of the second straight rail 22, the pusher block 33 is located between two adjacent spiral blades 12. Subsequently, the pusher block 33 moves between the two spiral blades 12 toward the position of the second semicircular rail 24. During the movement of the pusher block 33, the material between the two spiral blades 12 is pushed toward the position of the second semicircular rail 24, thereby pushing the accumulated material to one side of the second semicircular rail 24.

[0063] Furthermore, when the material is pushed to one side of the second semicircular rail 24, the T-bar 31 will rotate between the two semicircular rings 4. At the same time, since the lowest point of the semicircular rings 4 is lower than the lowest point of the guide block 32, the two semicircular rings 4 will be inserted under the guide block 32. Since the openings of the two semicircular rings 4 are inclined downward, when the T-bar 31 rotates in the two semicircular rings 4, the guide block 32 will rotate along the two semicircular rings 4, thereby pushing the guide block 32 to move upward. When the guide block 32 moves upward, it will drive the pushing block 33 and the T-bar 31 to move upward and slide upward in the mounting block 3, and at the same time, the first spring will be stretched. After the block 33 moves up, the height of the pusher block 33 will be higher than the height of the material, and at the same time, the height of the pusher block 33 is also higher than the height of the spiral blade 12, so the pusher block 33 no longer pushes the material to move. At this time, the material pushed by the pusher block 33 is located at the first semicircular rail 23. Then, the T-bar 31 passes through the two semicircular rings 4 under the traction of the driving belt 26, and then rotates to the lower position of the first straight rail 21. When the pusher assembly located below the first straight rail 21 moves to the position of the two semicircular rings 4 below the first semicircular rail 23, it will also rotate to the lower part of the second straight rail 22 under the guidance of the two semicircular rings 4, and the cycle continues.

[0064] Furthermore, after the pushing block 33 pushes the material to the position of the second semicircular rail 24, this part of the material will continue to move in an oblique motion trajectory under the push of the spiral blade 12. In this process, by setting up multiple pushing mechanisms 2, the originally accumulated material can be pushed to the side of the spiral blade 12 where the material is not accumulated, and then the spiral blade 12 can be used again to screen this part of the material, so that the accumulated material can be screened multiple times, thereby further improving the screening effect of the material, and at the same time, it can prevent some small materials from being mixed in the large material and moving out of the screening mechanism.

[0065] Embodiment 2:

[0066] The top of the guide block 32 is fixedly connected with evenly arranged gear teeth 34, and the multiple gear teeth 34 form a circle;

[0067] The bottom of the second straight rail 22 is provided with uniformly arranged tooth plates 35, and the gear teeth 34 are meshed with the tooth plates 35; the tooth plates 35 are arranged from the middle of the second straight rail 22 to one side close to the second semicircular rail 24, and adjacent tooth plates 35 are arranged at equal distances;

[0068] In this embodiment, arc-shaped plates 331 are fixedly connected to both side end surfaces of the pusher block 33;

[0069] In this embodiment, the surfaces of the pusher block 33 and the arc plate 331 are both smooth;

[0070] In this embodiment, the toothed plate 35 is fixedly mounted on the second straight rail 22 by bolts;

[0071] Specifically, when the push assembly pushes the material to move under the second straight rail 22, when the push block 33 passes the tooth plate 35, the gear teeth 34 on the top of the guide block 32 will mesh with the tooth plate 35, thereby pushing the gear teeth 34 to rotate, and the gear teeth 34 will drive the T-bar 31 and the push block 33 to rotate. When the T-bar 31 rotates, the T-bar 31 will wind the first spring. During the rotation of the push block 33, part of the material can be driven to rotate, and the material rotating with the push block 33 will rotate to the rear position of the push block 33 in the moving direction. When the material is pushed to the rear of the push block 33 in the moving direction, the part of the material will be placed between the two spiral blades 12. When the gear teeth 34 pass a tooth plate 3 5, under the action of the first spring, the T-bar 31 will be driven to rotate in the opposite direction and return to its original position. When the T-bar 31 rotates in the opposite direction, the pusher block 33 will also be driven to rotate. During the rotation of the pusher block 33, part of the material can still be driven to rotate and be driven to the rear position of the pusher block 33. Since there are multiple tooth plates 35, when the gear teeth 34 pass through each tooth plate 35, forward and reverse rotation will occur. When the pusher block 33 rotates, part of the material can be pushed to the rear position of the pusher block 33, so that the material pushed by the pusher block 33 can be released between the two spiral blades 12 in a relatively dispersed manner, so as to avoid the accumulation of materials, thereby affecting the screening effect of the materials.

[0072] Since the front and rear sides of the pusher block 33 are both fixedly connected with the arc-shaped plates 331, when the pusher block 33 rotates, the arc-shaped plates 331 can better push the material to rotate, so that the material can be pushed to the rear position of the pusher block 33 more easily;

[0073] Since the surfaces of the pusher block 33 and the arc plate 331 are smooth, the friction between the material and the pusher block 33 and the arc plate 331 can be reduced, thereby preventing part of the material from adhering to the pusher block 33 and the arc plate 331;

[0074] Meanwhile, since the tooth plate 35 is fixed to the second straight rail 22 by bolts, when the position of the tooth plate 35 needs to be adjusted, or the number of the tooth plates 35 needs to be increased or decreased, the bolts can be loosened manually to perform the operation.

[0075] Embodiment three:

[0076] A material guiding mechanism 5 is installed at the inlet of the screening mechanism;

[0077] The material guiding mechanism 5 comprises a mounting plate 51; the mounting plate 51 is mounted on two opposite side plates 11; the mounting plate 51 is tilted downward;

[0078] A rectangular groove is provided inside the mounting plate 51; a conveyor belt 52 is rotatably connected to the rectangular groove via a rotating rod;

[0079] The outer ring surface of the conveyor belt 52 is fixedly connected with evenly arranged partitions 53, and the partition 53 located at the bottom of the conveyor belt 52 intersects with a spiral blade 12 below;

[0080] In this embodiment, a long plate 54 is fixedly installed in the rectangular groove, and the long plate 54 is located on the inner circle of the conveyor belt 52;

[0081] The long plate 54 is slidably connected with push rods 55 which are evenly arranged and pass through the long plate 54; a semicircular block 56 is fixedly connected to the bottom of the push rod 55; a second spring is fixedly connected to the semicircular block 56, and the other end of the second spring is connected to the long plate 54;

[0082] The inner surface of the conveyor belt 52 is fixedly connected with evenly arranged arc-shaped protrusions 57;

[0083] In this embodiment, a long rod 58 is fixedly connected to the top of the push rod 55;

[0084] Specifically, since the partition plate 53 on the outer ring surface of the conveyor belt 52 intersects with the spiral blade 12 below, when the spiral blade 12 rotates, the push plate below can be pushed to move to the position of the first semicircular rail 23, and the partition plate 53 will drive the conveyor belt 52 to rotate in a circular manner. When the material is transferred to the screening mechanism, the material is first placed on the mounting plate 51. Since the conveyor belt 52 on the mounting plate 51 rotates in a circular manner, it will drive the material above the conveyor belt 52 to move toward the second semicircular rail 24. In the process of the conveyor belt 52 driving the material to move, the material on the conveyor belt 52 will roll down and fall on the spiral blade 12. In this process, by using the conveyor belt 52 to drive the material to move while discharging the material, the material can be placed on the spiral blade 12 more evenly, thereby avoiding the placed material from piling up, thereby increasing the difficulty of screening.

[0085] More specifically, since the inner ring surface of the conveyor belt 52 is fixedly connected with uniformly arranged arc-shaped protrusions 57, and since the long plate 54 is slidably connected with uniformly arranged push rods 55, when the conveyor belt 52 drives the arc-shaped protrusions 57 to move to the position of the push rod 55, the arc-shaped protrusions 57 will push the semicircular block 56 to move upward, and the semicircular block 56 will drive the push rod 55 to move upward, and the upward push rod 55 will hit the upper conveyor belt 52. When the conveyor belt 52 is hit, the materials on the conveyor belt 52 will roll down after being hit, thereby preventing some materials from sticking to the conveyor belt 52. When the arc-shaped protrusions 57 pass the push rod 55, the slide bar will return to its initial state under the action of the second spring.

[0086] At the same time, since the long rod 58 is fixedly connected to the slide bar, when the slide bar moves upward, it will drive the long rod 58 to hit the conveyor belt 52. When the long rod 58 hits the conveyor belt 52, the range of hitting the conveyor belt 52 can be increased, so that the material can roll off the conveyor belt 52 more easily.

[0087] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A modular solid waste treatment spiral screening station, comprising a screening station; a screening mechanism is installed on the screening station; the screening mechanism comprises screening rollers (1) arranged evenly; the screening rollers (1) are rotatably installed on side plates (11) on both sides; adjacent screening rollers (1) are connected by chains, and the chains are driven by motors; spiral blades (12) are installed on the screening rollers (1), and adjacent spiral blades (12) are arranged in a staggered manner; A lower hopper is provided below the screening roller (1); a first feeding belt (13) is installed below the lower hopper; a second feeding belt (14) is installed at the outlet of the screening mechanism; a finished product conveyor belt (15) is installed below the second feeding belt (14), and the finished product conveyor belt (15) is located on a side close to the first feeding belt (13) and below the first feeding belt (13); Features: A plurality of material pushing mechanisms (2) are installed on opposite sides of the two side plates (11); the material pushing mechanisms (2) include rails; the rails are fixedly connected to the side plates (11) on both sides via mounting rods; The track comprises a first straight track (21), a second straight track (22), a first semicircular track (23) and a second semicircular track (24), and the first semicircular track (23) and the second semicircular track (24) are respectively fixedly mounted on both sides of the first straight track (21) and the second straight track (22); the track is in an oblong shape as a whole; A slide groove (25) is provided on the outer ring surface of the track, and the slide groove (25) is in an oblong shape; a driving belt (26) is rotatably connected in the slide groove (25); and evenly arranged pusher components are installed on the outer ring surface of the driving belt (26); The pusher assembly comprises a mounting block (3); the mounting block (3) is mounted on a driving belt (26); a T-shaped rod (31) is slidably connected in the vertical direction inside the mounting block (3); a first spring is fixedly connected above the mounting block (3), and the other end of the first spring is connected to the T-shaped rod (31); a pusher block (33) is fixedly connected to the bottom of the T-shaped rod (31); a guide block (32) is fixedly connected to the T-shaped rod (31) above the pusher block (33); the pusher block (33) located on the first straight rail (21) is aligned with one of the spiral blades (12), and the pusher block (33) intersects with the spiral blade (12); The pusher block (33) located on the second straight rail (22) is located between two spiral blades (12), and the pusher block (33) does not contact the two spiral blades (12) on both sides; Two semicircular rings (4) are arranged below the first semicircular rail (23) and the second semicircular rail (24), and the semicircular rings (4) are inclined downward toward the opening; the lowest point of the semicircular rings (4) is lower than the lowest point of the guide block (32); when the T-shaped rod (31) follows the driving belt (26) to rotate to the position of the two semicircular rings (4), the T-shaped rod (31) will rotate between the two semicircular rings (4); one of the semicircular rings (4) is installed on the side plate (11) through a connecting rod (41); and the other semicircular ring (4) is installed on the bottom of the first semicircular rail (23) or the second semicircular rail (24) through a connecting rod (41).

2. A modular spiral screening station for solid waste treatment according to claim 1, characterized in that: The top of the guide block (32) is fixedly connected with evenly arranged gear teeth (34), and the plurality of gear teeth (34) form a circle; The bottom of the second straight rail (22) is provided with evenly arranged tooth plates (35), and the gear teeth (34) are meshed with the tooth plates (35); the tooth plates (35) are arranged from the middle of the second straight rail (22) and extend to a side close to the second semicircular rail (24), and adjacent tooth plates (35) are arranged at equal distances.

3. A modular spiral screening station for solid waste treatment according to claim 2, characterized in that: Arc plates (331) are fixedly connected to both side end surfaces of the pusher block (33).

4. A modular spiral screening station for solid waste treatment according to claim 3, characterized in that: The surfaces of the pushing block (33) and the arc-shaped plate (331) are both smooth.

5. A modular spiral screening station for solid waste treatment according to claim 4, characterized in that: The toothed plate (35) is fixedly mounted on the second straight rail (22) by means of bolts.

6. A modular spiral screening station for solid waste treatment according to claim 5, characterized in that: A material guiding mechanism (5) is installed at the inlet of the screening mechanism; The material guiding mechanism (5) comprises a mounting plate (51); the mounting plate (51) is mounted on two opposite side plates (11); the mounting plate (51) is tilted downward; A rectangular groove is provided inside the mounting plate (51); a conveyor belt (52) is rotatably connected to the rectangular groove via a rotating rod; The outer ring surface of the conveyor belt (52) is fixedly connected with evenly arranged partitions (53), and the partition (53) located at the bottom of the conveyor belt (52) intersects with a spiral blade (12) below.

7. A modular spiral screening station for solid waste treatment according to claim 6, characterized in that: A long plate (54) is fixedly installed in the rectangular groove, and the long plate (54) is located on the inner circle of the conveyor belt (52); The long plate (54) is slidably connected with push rods (55) arranged evenly, and the push rods (55) pass through the long plate (54); a semicircular block (56) is fixedly connected to the bottom of the push rod (55); a second spring is fixedly connected to the semicircular block (56), and the other end of the second spring is connected to the long plate (54); The inner ring surface of the conveyor belt (52) is fixedly connected with evenly arranged arc-shaped protrusions (57).

8. The modular spiral screening station for solid waste treatment according to claim 7, characterized in that: A long rod (58) is fixedly connected to the top of the push rod (55).

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