A method and system for processing RDF using a dual-drive shredder

Abstract

The present invention provides a method and system for processing RDF using a dual-drive shredder. The method comprises an air separator, a shredder, a mixer, and an extruder. The air separator, shredder, mixer, and extruder are sequentially connected via feed pipelines, and the shredder is also connected to a screening machine. The present invention aims to provide a method and system for processing RDF using a dual-drive shredder. This method solves the problem of incomplete shredding when mixing multiple wastes, resulting in a more uniform size of the final waste products and a higher calorific value for the RDF fuel rods.

Description

Technical Field

[0001] The present invention relates to the technical field of RDF processing, and in particular to a method and system for processing RDF using a dual-drive shredder. Background Art

[0002] In the prior art, a Chinese patent document with publication number CN109022095A discloses RDF fuel production equipment and an RDF fuel preparation method, and specifically discloses a crushing box with a crushing mechanism provided therein, a feed port provided at the top of the crushing box, a crushing discharge port provided at the bottom of the crushing box, and a mixing box connected to the crushing discharge port provided below the bottom of the crushing box; an additive inlet provided on the wall of the mixing box; a stirring shaft provided in the mixing box, one end of the stirring shaft extending out of the wall of the mixing box and being powered by a stirring motor; the other end of the stirring shaft being connected to a screw conveying extruder; the screw conveying extruder comprising a shell connected to the mixing box and a screw conveying shaft coaxially connected to the stirring shaft; and a heating device for heating the shell of the mixing box or the screw conveying extruder. When the above-mentioned process method is used, the crushing, mixing and final extrusion molding processes of solid waste are completed in sequence through the crushing box, mixing box and screw conveying extruder. However, since domestic and industrial waste generally contain many types of waste, when crushing them, different waste materials are different, such as plastic bags, which are difficult to crush effectively, which may lead to different sizes of crushed products, and thus the final RDF fuel rods have low density and low calorific value. Therefore, it is necessary to design a method and system for processing RDF using a dual-drive shredder, which can solve the problem of incomplete crushing when multiple wastes are mixed, so that the final waste products have a uniform size and the RDF fuel rods have a higher calorific value. Summary of the Invention

[0003] The present invention provides a method and system for processing RDF using a dual-drive shredder, which can solve the problem of incomplete crushing when multiple wastes are mixed, so that the final waste products have a uniform size and the RDF fuel rods have a higher calorific value.

[0004] To this end, the technical solution adopted is a method of processing RDF using a dual-drive shredder of the present invention, comprising the following steps:

[0005] Step 1: Sorting: First, the material is sent to the air separator for sorting, and the density differences between various wastes are used to distinguish them;

[0006] Step 2: Coarse crushing. The sorted waste is then fed into a shredder for crushing. The speed of the shredder is adjusted according to the density of the waste. For example, the speed of the shredder is lower when crushing waste with a higher density, and higher when crushing soft materials with a lower density.

[0007] Step 3: Fine crushing, screening the coarsely crushed waste, and then crushing the larger waste for the second time;

[0008] Step 4: Mixed extrusion molding, the crushed waste is sent to a mixing mixer for stirring, and additives are added at the same time, and then the material is sent to an extruder for extrusion molding, and the preparation process is completed.

[0009] Preferably, the fine crushing in step 3 is also carried out according to the density of the waste.

[0010] The present invention also provides a system for processing RDF using a dual-drive shredder, comprising: an air separator, a shredder, a mixer and an extruder, wherein the air separator, the shredder, the mixer and the extruder are connected in sequence through a feeding pipeline, and the shredder is also connected to a screening machine.

[0011] Preferably, the screening machine comprises:

[0012] The support cylinder is configured to be cylindrical and the axis of the screening cylinder is configured to be horizontally configured, a discharge port is opened on the bottom wall of the support cylinder, a screening cylinder is configured to be inside the support cylinder, the screening cylinder is configured to be a screen structure, the screening cylinder comprises a feed cylinder section and a discharge cylinder section, the feed cylinder section is connected to the discharge cylinder section and the feed cylinder section has a smaller diameter than the discharge cylinder section, the screening cylinder is sleeved in the support cylinder and is rotatably connected to the support cylinder, the axis of the screening cylinder is obliquely downwardly directed to the discharge cylinder section, and a driving module is configured to drive the screening cylinder to rotate;

[0013] A driving disc is further provided at the tail of the discharging barrel section, the driving disc is coaxially arranged with the screening barrel, the driving disc and the screening barrel are connected by a first connecting rod, the first connecting rod is configured as an L-shaped structure and is fixedly connected to the inner wall of the screening barrel, and a driving strip with a spiral structure is provided at the edge of the driving disc;

[0014] A support plate, an end of the discharge barrel section away from the feed barrel section is further provided with a support plate, the support plate is connected to the support barrel, the support plate is vertically arranged, and a drive frame is slidably arranged on the support plate in the vertical direction, the drive frame is arranged to be a rectangular structure, and an end of the drive disc away from the screening barrel is further provided with a drive cam, the drive cam is fixedly connected to the drive disc, and the drive cam is slidably arranged in the drive frame;

[0015] A second material-moving rod, the bottom of the driving frame is further connected to the second material-moving rod, the second material-moving rod is arranged with the axis of the screening drum, and a material-moving fork is provided at one end of the second material-moving rod away from the driving frame;

[0016] A linkage block is provided on the second material tapping rod, the linkage block is vertically arranged and slidably connected to the support tube, the second material tapping rod passes through the linkage block and is slidably connected to the linkage block along the vertical direction, the linkage block can drive the second material tapping rod to move in the horizontal direction, and a clamping block is provided on the upper end of the linkage block, the clamping block is arranged as a U-shaped structure, and the driving bar is slidably arranged in the clamping block.

[0017] Preferably, a clamping ball is provided on one side of the clamping blocks that are close to each other. The clamping ball is configured as a spherical structure and is embedded in the clamping block. The clamping ball is rotatably connected to the clamping block.

[0018] Preferably, a guide column is horizontally arranged on the support tube, and at least two guide columns are provided. The guide columns pass through the linkage block and are slidably connected to the linkage block.

[0019] Preferably, a plurality of protrusions are arranged at equal intervals on the inner wall of the screening cylinder, and the protrusions are arranged in an arc-shaped structure.

[0020] Preferably, a rotating sleeve is provided at the connection between the first connecting rod and the inner wall of the screening drum. The rotating sleeve is sleeved on the outside of the first connecting rod and is rotationally connected to the first connecting rod and the inner wall of the screening drum.

[0021] Preferably, the shredder includes: a shell, a feed hopper, a crushing module and a power module. The feed hopper is arranged on the top of the shell and is connected to the shell. The crushing module includes a main shaft, and two main shafts are horizontally symmetrically arranged in the shell. The power module is designed on the shell to drive the main shaft to rotate. An auxiliary component for assisting feeding is also provided in the feed hopper.

[0022] Preferably, the auxiliary components include:

[0023] A guide frame is horizontally arranged in the feed hopper, the guide frame is arranged in an H-shaped structure, a guide block is slidably arranged on the guide frame, and the sliding direction of the guide block is parallel to the axis direction of the main shaft;

[0024] A guide rod is horizontally provided on the upper surface of the guide block, the guide rod is perpendicular to the sliding direction of the guide block, and a guide notch is opened on the guide rod along the length direction;

[0025] A feeding motor is provided above the guide frame, an output shaft of the feeding motor is provided vertically downward, a feeding crank is fixedly provided on the output shaft of the feeding motor, the feeding crank is provided horizontally, and a feeding block is hingedly provided at one end of the feeding crank away from the feeding motor, and the feeding block is slidably provided in the guide slot;

[0026] A dividing rod, a guide frame is fixedly provided at the bottom of the guide frame, a plurality of dividing rods are horizontally arranged in the guide frame, the dividing rods are slidably connected to the guide frame, and a vertical downward shifting rod is provided at the bottom of the dividing rod;

[0027] A reset spring is fixedly provided with a reset block in the middle of the material distribution rod, and a reset spring is fixedly provided between the reset block and the guide frame;

[0028] A driving boss, a guide slide is provided on the bottom wall of the guide block, a bending structure is provided inside the guide slide, a driving boss is provided on the top wall of the dividing rod, the driving boss is vertically arranged upward, and the upper end of the driving boss is slidably arranged in the guide slide.

[0029] The working principle and beneficial technical effects of the present invention are as follows: When preparing RDF fuel rods, the waste is first sorted and then crushed according to different waste densities. Two crushing processes are set up at the same time, and a screening process is also provided between the two crushing processes. This ensures that the size of the final crushed products remains consistent, facilitates mixed briquetting, and also makes the RDF fuel rods have a higher calorific value.

[0030] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0031] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0033] Figure 1 Schematic diagram of a process for processing RDF using a dual-drive shredder according to an embodiment of the present invention;

[0034] Figure 2 Schematic diagram of the front view of a screening machine in a system for processing RDF using a dual-drive shredder according to an embodiment of the present invention;

[0035] Figure 3 Schematic diagram of a driving cam structure in a system for processing RDF using a dual-drive shredder according to an embodiment of the present invention;

[0036] Figure 4 A schematic diagram of the linkage block structure of a system for processing RDF using a dual-drive shredder in an embodiment of the present invention;

[0037] Figure 5 for Figure 2 A magnified schematic diagram of part A;

[0038] Figure 6 Schematic diagram of the structure of a shredder in a system for processing RDF using a dual-drive shredder according to an embodiment of the present invention;

[0039] Figure 7 Schematic diagram of a top view of the auxiliary components in a system for processing RDF using a dual-drive shredder according to an embodiment of the present invention;

[0040] Figure 8 Schematic diagram of the front view of the auxiliary components in a system for processing RDF using a dual-drive shredder according to an embodiment of the present invention;

[0041] Figure 9 2. This is a schematic diagram of the structure of a feeder rod in a system for processing RDF using a dual-drive shredder according to an embodiment of the present invention, viewed from above;

[0042] Figure 10 2. A schematic diagram of the bottom view of the structure of a guide block in a system for processing RDF using a dual-drive shredder according to an embodiment of the present invention;

[0043] Figure 11 FIG. 4 is a side view of a shredder in a system for processing RDF using a dual-drive shredder according to an embodiment of the present invention.

[0044] 1. Screening machine; 101. Support cylinder; 102. Discharge port; 103. Screening cylinder; 104. Feed cylinder section; 105. Discharge cylinder section; 106. Driving module; 107. Driving disc; 108. First connecting rod; 109. Driving bar; 110. Support plate; 111. Driving frame; 112. Driving cam; 113. Second material-dispensing rod; 114. Material-dispensing fork; 115. Linkage block; 116. Clamping block; 117. Clamping ball; 118. Guide column; 119. Bump; 120. Rotating sleeve; 2. Shredder; 21. Housing; 22. Feed hopper; 23. Crushing module; 24. Power module; 25. Spindle; 26. Hydraulic cylinder; 27. Lower fixed knife seat; 28. Discharge hopper; 3. Auxiliary components; 301. Guide frame; 302. Guide block; 303. Guide rod; 304. Guide notch; 305. Feed motor; 306. Feed crank; 307. Feed block; 308. Feeding rod; 309. Guide frame; 310. Return spring; 311. Return block; 312. Drive boss; 313. Guide slide. DETAILED DESCRIPTION

[0045] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0046] The embodiment of the present invention provides a method for processing RDF using a dual-drive shredder, such as Figure 1 As shown, the following steps are included:

[0047] Step 1: Sorting: First, the material is sent to the air separator for sorting, and the density differences between various wastes are used to distinguish them;

[0048] Step 2: Coarse crushing. The sorted waste is then fed into the shredder 2 for crushing. The speed of the shredder is adjusted according to the density of the waste. The speed of the shredder 2 is adjusted to a lower level when crushing dense waste, and to a higher level when crushing soft materials with a lower density.

[0049] Step 3: Fine crushing, screening the coarsely crushed waste, and then crushing the larger waste for the second time;

[0050] Step 4: Mixed extrusion molding, the crushed waste is sent to a mixing mixer for stirring, and additives are added at the same time, and then the material is sent to an extruder for extrusion molding, and the preparation process is completed;

[0051] In step 3, the fine crushing is also carried out according to the density of the waste.

[0052] The working principle and beneficial technical effects of the above technical solution are as follows: When preparing RDF fuel rods, the waste is first sorted and then crushed according to different waste densities. Two crushing processes are set up at the same time, and a screening process is also set up between the two crushing processes to ensure that the size of the final crushed products remains consistent, which is convenient for mixed briquetting and also makes the RDF fuel rods have a higher calorific value.

[0053] An embodiment of the present invention also provides a system for processing RDF using a dual-drive shredder, comprising: an air separator, a shredder 2, a mixer, and an extruder, wherein the air separator, the shredder 2, the mixer, and the extruder are connected in sequence through a feeding pipeline, and the shredder 2 is also connected to a screening machine 1.

[0054] In one embodiment, Figure 2-5 As shown, the screening machine 1 includes:

[0055] The support cylinder 101 is configured to be cylindrical and the axis of the screening cylinder 103 is configured to be horizontally configured. A discharge port 102 is provided on the bottom wall of the support cylinder 101. A screening cylinder 103 is provided in the support cylinder 101. The screening cylinder 103 is configured to be a screen structure. The screening cylinder 103 includes a feed cylinder section 104 and a discharge cylinder section 105. The feed cylinder section 104 is connected to the discharge cylinder section 105 and the diameter of the feed cylinder section 104 is smaller than that of the discharge cylinder section 105. The screening cylinder 103 is sleeved in the support cylinder 101 and is rotatably connected to the support cylinder 101. The axis of the screening cylinder 103 is obliquely downwardly directed to the discharge cylinder section 105. A driving module 106 is provided at the feed cylinder section 104 for driving the screening cylinder 103 to rotate.

[0056] A drive disc 107 is further provided at the tail of the discharge barrel section 105. The drive disc 107 is coaxially arranged with the screening drum 103. The drive disc 107 and the screening drum 103 are connected via a first connecting rod 108. The first connecting rod 108 is configured as an L-shaped structure and is fixedly connected to the inner wall of the screening drum 103. A spiral drive bar 109 is provided at the edge of the drive disc 107.

[0057] A support plate 110 is further provided at one end of the discharge barrel section 105 away from the feed barrel section 104. The support plate 110 is connected to the support barrel 101. The support plate 110 is vertically arranged, and a drive frame 111 is slidably arranged on the support plate 110 in the vertical direction. The drive frame 111 is arranged in a rectangular structure. A drive cam 112 is further provided at one end of the drive disc 107 away from the screening barrel 103. The drive cam 112 is fixedly connected to the drive disc 107, and the drive cam 112 is slidably arranged in the drive frame 111.

[0058] A second material-moving rod 113 is further connected to the bottom of the driving frame 111. The second material-moving rod 113 is arranged axially with the screening drum 103. A material-moving fork 114 is provided at one end of the second material-moving rod 113 away from the driving frame 111;

[0059] A linkage block 115 is provided on the second material-moving rod 113. The linkage block 115 is vertically arranged and slidably connected to the support cylinder 101. The second material-moving rod 113 passes through the linkage block 115 and is slidably connected to the linkage block 115 in the vertical direction. The linkage block 115 can drive the second material-moving rod 113 to move in the horizontal direction. A clamping block 116 is provided on the upper end of the linkage block 115. The clamping block 116 is set as a U-shaped structure, and the driving bar 109 is slidably arranged in the clamping block 116;

[0060] A clamping ball 117 is provided on one side of the clamping blocks 116 , and the clamping ball 117 is a spherical structure and is embedded in the clamping block 116 . The clamping ball 117 is rotatably connected to the clamping block 116 .

[0061] A guide post 118 is horizontally provided on the support tube 101. There are at least two guide posts 118. The guide posts 118 pass through the linkage block 115 and are slidably connected to the linkage block 115.

[0062] A plurality of protrusions 119 are provided on the inner wall of the screening drum 103 at equal intervals, and the protrusions 119 are arranged in an arc-shaped structure;

[0063] A rotating sleeve 120 is provided at the connection between the first connecting rod 108 and the inner wall of the screening drum 103 . The rotating sleeve 120 is sleeved on the outside of the first connecting rod 108 . The rotating sleeve 120 is rotatably connected to the first connecting rod 108 and the inner wall of the screening drum 103 .

[0064] The working principle and beneficial technical effects of the above technical solution are as follows: when the screening machine 1 is in use, the coarsely crushed waste enters the feed barrel section 104, and at this time the driving module 106 drives the screening barrel 103 to rotate. When the screening barrel 103 rotates, the relatively fine waste after crushing enters the support barrel 101 and is merged into the discharge port 102 on the bottom wall of the support barrel 101 for discharge to the subsequent process, while the larger waste is discharged through the tail of the discharge barrel section 105 for fine crushing. In this process, when the screening barrel 103 rotates, the driving disc 107 is driven to rotate together through the first connecting rod 108. Since the driving bar 109 is set to a spiral structure, the driving disc 107 rotates through the driving bar 109 and the clamping block 1 The cooperation of 16 pushes the clamping block 116 to reciprocate along the axial direction of the driving disk 107, thereby driving the linkage block 115 to reciprocate, and then through the cooperation of the linkage block 115 and the second material-pickup rod 113, the second material-pickup rod 113 is driven to reciprocate in the horizontal direction. When the second material-pickup rod 113 moves, the material-dividing fork 114 at the front end will insert the waste. At the same time, when the driving disk 107 rotates, it drives the driving cam 112 to rotate together, and the driving cam 112 pushes the driving frame 111 to reciprocate up and down, thereby driving the second material-pickup rod 113 to reciprocate up and down, so that the material-dividing fork 114 at the front end can not only fork the waste, but also stir the waste so that the smaller waste can be fully shaken off, which is convenient for separation.

[0065] In one embodiment, Figure 6-11 As shown, the shredder 2 includes: a shell 21, a feed hopper 22, a crushing module 23 and a power module 24. The feed hopper 22 is arranged at the top of the shell 21 and is connected to the shell 21. The crushing module 23 includes a main shaft 25. The two main shafts 25 are horizontally symmetrically arranged in the shell 21. The power module 24 is designed on the shell 21 to drive the main shaft 25 to rotate. A hydraulic cylinder 26 is provided in the shell 21. The output end of the hydraulic cylinder 26 is connected to the screen. The screen is provided below the feed hopper 22. A lower fixed knife seat 27 is provided below the main shaft 25. A discharge hopper 28 is provided at the bottom of the shell 21.

[0066] Torque is transmitted between the motor and spindle 25 via a flywheel and belt, eliminating the need for a speed reducer. This effectively creates a direct connection between the spindle and motor, resulting in a high speed. A hydraulic screen-opening mechanism is added to both sides of the housing, with a hydraulic cylinder 26 located on each side. Extending the cylinder's stroke opens the screen downward, while shortening it closes it. The lower fixed blade holder 27 is removable and adjustable vertically. During maintenance, it can be lowered to a comfortable working position. To disassemble, the fixing bolts can be removed and the machine can be removed from the discharge hopper 28.

[0067] An auxiliary component 3 for assisting feeding is also provided in the feed hopper 22. The auxiliary component 3 includes:

[0068] A guide frame 301 is horizontally arranged in the feed hopper 22. The guide frame 301 is configured as an H-shaped structure. A guide block 302 is slidably arranged on the guide frame 301. The sliding direction of the guide block 302 is parallel to the axis direction of the main shaft 25.

[0069] A guide rod 303 is horizontally provided on the upper surface of the guide block 302. The guide rod 303 is perpendicular to the sliding direction of the guide block 302. A guide slot 304 is provided along the length of the guide rod 303.

[0070] A feeding motor 305 is provided above the guide frame 301, and an output shaft of the feeding motor 305 is provided vertically downward. A feeding crank 306 is fixedly provided on the output shaft of the feeding motor 305. The feeding crank 306 is provided horizontally and a feeding block 307 is hingedly provided at one end of the feeding crank 306 away from the feeding motor 305. The feeding block 307 is slidably provided in the guide slot 304;

[0071] A dividing rod 308 is provided, wherein a guide frame 309 is fixedly provided at the bottom of the guide frame 301, and a plurality of dividing rods 308 are horizontally provided in the guide frame 309. The dividing rods 308 are slidably connected to the guide frame 309, and a vertical downward shifting rod is provided at the bottom of the dividing rod 308;

[0072] A return spring 310 is provided. A return block 311 is fixedly provided in the middle of the material distribution rod 308 . A return spring 310 is fixedly provided between the return block 311 and the guide frame 309 .

[0073] A driving boss 312 is provided on the bottom wall of the guide block 302, and a bending structure is provided inside the guide slide 313. A driving boss 312 is provided on the top wall of the dividing rod 308, and the driving boss 312 is provided vertically upward, and the upper end of the driving boss 312 is slidably provided in the guide slide 313.

[0074] The working principle and beneficial technical effects of the above technical solution: When the shredder 2 is in use, by arranging an auxiliary component 3 in the feed hopper 22, it is possible to avoid blockage in the feed hopper 22 during feeding, thereby facilitating feeding. When the auxiliary component 3 is in use, the feed motor 305 starts to drive the feed crank 306 to rotate, thereby driving the guide rod 303 and the guide block 302 to slide back and forth in the horizontal direction through the cooperation between the feed block 307 and the guide slot 304. When the guide block 302 reciprocates, the guide slide 313 and the drive boss 312 push the dividing rod 308 to reciprocate horizontally, and the movement direction is perpendicular to the sliding direction of the guide block 302, thereby pushing the material in the feed hopper 22 to both sides to avoid material blockage affecting feeding.

[0075] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A system for processing RDF using a dual-drive shredder, characterized in that: include: An air separator, a shredder (2), a mixer and an extruder, wherein the air separator, the shredder (2), the mixer and the extruder are sequentially connected via a feeding pipeline, and the shredder (2) is also connected to a screening machine (1), which comprises: The support cylinder (101) is configured to be cylindrical and the axis of the screening cylinder (103) is configured to be horizontal. A discharge port (102) is provided on the bottom wall of the support cylinder (101). A screening cylinder (103) is provided in the support cylinder (101). The screening cylinder (103) is configured to be a screen structure. The screening cylinder (103) includes a feed cylinder section (104) and a discharge cylinder section (105). The feed cylinder section (104) is connected to the discharge cylinder section (105) and the diameter of the feed cylinder section (104) is smaller than that of the discharge cylinder section (105). The screening cylinder (103) is sleeved in the support cylinder (101) and is rotatably connected to the support cylinder (101). The axis of the screening cylinder (103) is obliquely downwardly directed toward the discharge cylinder section (105). A driving module (106) is provided at the feed cylinder section (104) for driving the screening cylinder (103) to rotate. A driving disc (107) is further provided at the tail of the discharge barrel section (105). The driving disc (107) and the screening barrel (103) are coaxially arranged. The driving disc (107) and the screening barrel (103) are connected via a first connecting rod (108). The first connecting rod (108) is provided in an L-shaped structure and is fixedly connected to the inner wall of the screening barrel (103). A driving strip (109) with a spiral structure is provided at the edge of the driving disc (107); A support plate (110) is further provided at one end of the discharge barrel section (105) away from the feed barrel section (104), the support plate (110) is connected to the support barrel (101), the support plate (110) is vertically arranged, and a drive frame (111) is provided on the support plate (110) for sliding along the vertical direction, the drive frame (111) is arranged in a rectangular structure, and a drive cam (112) is further provided at one end of the drive disc (107) away from the screening barrel (103), the drive cam (112) is fixedly connected to the drive disc (107), and the drive cam (112) is slidably arranged in the drive frame (111); A second material shifting rod (113), the bottom of the driving frame (111) is further connected to the second material shifting rod (113), the second material shifting rod (113) is arranged on the axis of the screening drum (103), and a material shifting fork (114) is provided at one end of the second material shifting rod (113) away from the driving frame (111); A linkage block (115) is provided on the second material-moving rod (113), the linkage block (115) is vertically arranged, the second material-moving rod (113) passes through the linkage block (115) and is slidably connected with the linkage block (115) in the vertical direction, the linkage block (115) can drive the second material-moving rod (113) to move in the horizontal direction, a clamping block (116) is provided on the upper end of the linkage block (115), the clamping block (116) is arranged as a U-shaped structure, the driving bar (109) is slidably arranged in the clamping block (116), a clamping ball (117) is provided on the side of the clamping blocks (116) close to each other, the clamping ball (117) is arranged as a spherical structure and is embedded in the clamping block (116), and the clamping ball (117) is rotatably connected to the clamping block (116); The steps of processing RDF using the system include: Step 1: Sorting: First, the material is sent to the air separator for sorting, and the density differences between various wastes are used to distinguish them; Step 2: Coarse crushing, then sending the sorted waste into the shredder (2) for crushing respectively, and adjusting the crushing speed according to the density of the waste during crushing. When crushing the waste with higher density, the shredder (2) has a lower speed, and when crushing the soft material with lower density, the shredder (2) has a higher speed; Step 3: Fine crushing, screening the coarsely crushed waste, and then crushing the larger waste for the second time; Step 4: Mixed extrusion molding, the crushed waste is sent to a mixing mixer for stirring, and additives are added at the same time, and then the material is sent to an extruder for extrusion molding, and the preparation process is completed.

2. A system for processing RDF using a dual-drive shredder according to claim 1, characterized in that: In step 3, the fine crushing is also carried out according to the density of the waste.

3. The system for processing RDF using a dual-drive shredder according to claim 1, characterized in that: A guide column (118) is horizontally arranged on the support tube (101), and at least two guide columns (118) are provided. The guide columns (118) pass through the linkage block (115) and are slidably connected to the linkage block (115).

4. The system for processing RDF using a dual-drive shredder according to claim 1, characterized in that: A plurality of protrusions (119) are arranged at equal intervals on the inner wall of the screening cylinder (103), and the protrusions (119) are arranged in an arc-shaped structure.

5. The system for processing RDF using a dual-drive shredder according to claim 1, characterized in that: A rotating sleeve (120) is provided at the connection between the first connecting rod (108) and the inner wall of the screening drum (103). The rotating sleeve (120) is sleeved on the outside of the first connecting rod (108). The rotating sleeve (120) is rotationally connected to the first connecting rod (108) and the inner wall of the screening drum (103).

6. The system for processing RDF using a dual-drive shredder according to claim 5, characterized in that: The shredder (2) comprises: a housing (21), a feed hopper (22), a crushing module (23) and a power module (24); the feed hopper (22) is arranged on the top of the housing (21) and is in communication with the housing (21); the crushing module (23) comprises a main shaft (25); two main shafts (25) are horizontally symmetrically arranged in the housing (21); the power module (24) is designed on the housing (21) for driving the main shaft (25) to rotate; and an auxiliary component (3) for assisting feeding is also arranged in the feed hopper (22).

7. The system for processing RDF using a dual-drive shredder according to claim 6, characterized in that: The auxiliary component (3) comprises: A guide frame (301) is horizontally arranged in the feed hopper (22), the guide frame (301) is arranged in an H-shaped structure, a guide block (302) is slidably arranged on the guide frame (301), and the sliding direction of the guide block (302) is parallel to the axial direction of the main shaft (25); A guide rod (303), wherein the upper surface of the guide block (302) is provided with a guide rod (303) horizontally, the guide rod (303) is perpendicular to the sliding direction of the guide block (302), and a guide notch (304) is provided on the guide rod (303) along the length direction; A feeding motor (305) is provided above the guide frame (301), an output shaft of the feeding motor (305) is vertically downwardly arranged, a feeding crank (306) is fixedly arranged on the output shaft of the feeding motor (305), the feeding crank (306) is horizontally arranged, and a feeding block (307) is hingedly provided at one end of the feeding crank (306) away from the feeding motor (305), and the feeding block (307) is slidably arranged in the guide slot (304); A material distribution rod (308), a guide frame (309) is fixedly provided at the bottom of the guide frame (301), a plurality of material distribution rods (308) are horizontally provided in the guide frame (309), the material distribution rods (308) are slidably connected to the guide frame (309), and a vertical downward shifting rod is provided at the bottom of the material distribution rod (308); A return spring (310), a return block (311) is fixedly provided in the middle of the material distribution rod (308), and a return spring (310) is fixedly provided between the return block (311) and the guide frame (309); A driving boss (312) is provided on the bottom wall of the guide block (302), a guide slideway (313) is provided in the guide slideway (313), a bending structure is provided in the top wall of the material distribution rod (308), a driving boss (312) is provided on the top wall, the driving boss (312) is provided vertically upward, and the upper end of the driving boss (312) is slidably provided in the guide slideway (313).

Images