An industrial solid waste double-screw extrusion granulator based on resource recycling
By integrating a screening and cleaning mechanism into a twin-screw extruder granulator, and utilizing triboelectric and magnetic adsorption technologies, plastic bags and metal scraps are automatically separated, solving the problems of equipment jamming and high maintenance costs, and improving production efficiency and resource recycling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHAANXI LEFENMEI ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2026-05-19
- Publication Date
- 2026-07-21
AI Technical Summary
Existing twin-screw extruders lack a targeted impurity separation structure, which makes it easy for plastic bags to get tangled in the screw and barrel of the equipment, and for metal debris to damage core components, increasing maintenance costs. Furthermore, it is difficult to achieve automatic separation of plastic bags from metal impurities, which affects the efficiency of solid waste resource recycling.
An industrial solid waste twin-screw extruder granulator integrating screening and cleaning mechanisms was designed. It achieves automatic separation by adsorbing plastic bags through triboelectricity and metal debris through magnetic adsorption, avoiding manual pretreatment, protecting equipment and improving resource recycling rate.
It achieves efficient and automatic separation of plastic bags and metal scraps, reduces labor costs, minimizes equipment failures, extends equipment lifespan, and improves the quality of recycled pellets and the rate of resource recycling.
Smart Images
Figure CN122425809A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of granulator technology, specifically to a twin-screw extrusion granulator for industrial solid waste based on resource recycling. Background Technology
[0002] The resource utilization of industrial solid waste is a core demand in the current environmental protection and energy conservation fields. As a key piece of equipment for industrial solid waste treatment, the twin-screw extruder can process various types of industrial solid waste into recyclable granules. However, industrial solid waste often contains lightweight impurities such as plastic bags and metal shavings. Plastic bags can easily become entangled in the screw and barrel of the equipment, causing equipment jamming and wear, reducing granulation efficiency and product quality. Metal shavings can seriously damage core components such as the screw and die, increasing equipment maintenance costs. Furthermore, plastic bags and metal impurities are difficult to separate in advance, affecting the resource recycling effect of solid waste.
[0003] Currently, existing twin-screw extruders lack targeted impurity separation structures, relying heavily on manual pre-sorting of industrial solid waste, which is inefficient, labor-intensive, and incomplete. While existing triboelectric and magnetic separation technologies are widely used in impurity separation, they are not integrated with the feeding pretreatment stage of twin-screw extruders. This makes it impossible to achieve automatic gripping and adsorption of plastic bags and simultaneous separation of metal impurities, which is insufficient to meet the needs of large-scale, continuous granulation of industrial solid waste and restricts the efficiency of industrial solid waste resource recycling. Summary of the Invention
[0004] To address the aforementioned problems, this invention provides an industrial solid waste twin-screw extruder granulator based on resource recycling.
[0005] This invention adopts the following technical solution: an industrial solid waste twin-screw extrusion granulator based on resource recycling, comprising a worktable, a granulator body and a controller mounted on the worktable, a feed inlet connected to the granulator body, a discharge outlet on one side wall of the worktable, a screening box on one side of the worktable, an inclined surface at the bottom of the screening box's inner cavity, a motor fixedly connected to the side wall of the inclined surface, and a rotating shaft fixedly connected to the motor's output shaft, and further comprising: A screening mechanism is provided inside a rotating shaft to separate metal sieves when selecting tangled plastic bags. And a cleaning mechanism that can automatically collect metal debris from the plastic bag, the cleaning mechanism being located inside the rotating shaft.
[0006] As a further description of the above technical solution: the screening mechanism includes a sleeve, which is movably disposed inside a rotating shaft. A pointed cone is fixedly connected to the outer wall of the rotating shaft, and a rotating shaft is fixedly connected inside the rotating shaft. A protrusion is fixedly connected to the outer wall of the end of the rotating shaft away from the motor, and a groove is provided on the sleeve.
[0007] As a further description of the above technical solution: the cleaning mechanism includes a collar, which is sleeved on the end of the sleeve near the motor. A torsion spring is fixedly connected between the outer wall of the collar and the rotating shaft. A slag storage groove is formed on the outer wall of the rotating shaft. A lever is fixedly connected to the outer wall of the sleeve. A rotating block is rotatably arranged inside the rotating shaft. A torsion spring is fixedly connected between the outer wall of the rotating block and the rotating shaft. A actuating block is fixedly connected to the rotating block. A scraper is fixedly connected to the upper end of the actuating block. A lifting rod is inserted into the end of the actuating block near the sleeve. A guide post is fixedly connected to one end of the lifting rod. An annular groove is formed inside the rotating shaft. An inclined groove is formed at one end of the annular groove. The guide post is movably arranged within the annular groove and the inclined groove. The rotating shaft is far... A sliding plate is slidably disposed at one end away from the motor. A spring is fixedly connected to one end of the sliding plate and the rotating shaft. A plug block is fixedly connected to the end of the sliding plate away from the motor. The plug block is horizontally inserted into the rotating shaft. The end of the torsion spring extending out of the rotating shaft abuts against the plug block. A sliding plate is fixedly connected to the end of the plug block away from the plug block. A spring is fixedly connected to the sliding plate and the screening box. Both the plug block and the plug block have rounded corners. A limit block is fixedly connected to the end of the sliding plate near the sleeve. A limit groove is opened on the sleeve. The limit block is movably inserted into the limit groove. A pressure rod is fixedly connected to the end of the sleeve located inside the collar. The pressure rod abuts against a slanted slider. The slanted slider is fixedly connected to the inner wall of the collar.
[0008] As a further description of the above technical solution: the rotating shaft is provided at equal intervals along the direction of the inclined plane.
[0009] As a further description of the above technical solution: the groove is located on the side of the protrusion away from the motor.
[0010] As a further description of the above technical solution: after the protrusion rubs against the sleeve, both the rotating shaft and the pivot shaft can become charged. The inclined slider is conductive and connected to the external metal. The limiting block and the inclined slider are magnetic. The attraction between the limiting block and the limiting groove is greater than the attraction between the sleeve and the inclined slider.
[0011] As a further description of the above technical solution: there are two inclined sliders, and there is a gap between the two inclined sliders. An inclined sliding surface is opened at the end of the inclined slider near the sleeve.
[0012] As a further description of the above technical solution: when the rotating shaft rotates counterclockwise, the insert block will be squeezed toward the side away from the sleeve. When the rotating shaft rotates counterclockwise, the bottom end of the lifting rod can drive the dial block to rotate. The magnetism inside the sleeve near the dial block is stronger. The metal plate set in the part of the slag storage tank near the inclined groove is thicker.
[0013] This invention provides an improved twin-screw extruder for industrial solid waste based on resource recycling, which has the following improvements and advantages compared with the prior art: Firstly, automatic impurity removal replaces manual labor, improving pre-treatment efficiency. The equipment integrates screening and cleaning mechanisms, which can automatically separate plastic bags and metal scraps from industrial solid waste, eliminating the need for manual sorting in advance, significantly reducing labor costs, and meeting the needs of large-scale and continuous granulation of industrial solid waste. Secondly, it protects core equipment, reduces maintenance losses, and removes metal debris and plastic bags in advance to prevent metal from damaging the screw and die head and plastic bags from getting tangled in the equipment and causing jamming. This effectively reduces equipment failures and maintenance frequency and extends equipment life. Thirdly, it accurately separates impurities and improves the resource recycling rate. By using triboelectric attraction to adsorb plastic bags and magnetic attraction to adsorb metal fragments, it achieves efficient separation of the two types of impurities, which can be recycled and reused separately, optimizing the resource treatment effect of solid waste and improving the quality of recycled pellets. In summary, this invention integrates impurity separation with twin-screw extrusion granulation, solving the problems of inadequate impurity removal and inefficient sorting in traditional granulators. It balances production efficiency, equipment protection, and resource recycling, meeting the environmental protection and energy-saving needs of industrial solid waste resource utilization. Attached Figure Description
[0014] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the sleeve structure provided in an embodiment of the present invention; Figure 3 A perspective sectional view of the rotating shaft provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the transfer block provided in an embodiment of the present invention; Figure 5 A perspective sectional view of the rotating shaft provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the skateboard away from the axis of rotation provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the oblique slider provided in an embodiment of the present invention; Figure 8 for Figure 3 Enlarged view of point A in the middle; Figure 9 for Figure 4 Enlarged view of point B in the middle; Figure 10 for Figure 5 Enlarged view of point C in the middle; Figure 11 for Figure 5 Enlarged view of point D in the middle; In the diagram: 1. Workbench; 2. Granulator body; 3. Controller; 4. Feed inlet; 5. Discharge outlet; 6. Screening box; 7. Inclined surface; 8. Motor; 9. Rotating shaft; 10. Screening mechanism; 101. Sleeve; 102. Cone; 103. Rotating shaft; 104. Protrusion; 105. Groove; 11. Cleaning mechanism; 111. Collar; 112. Torsion spring one; 113. Scraper; 114. Slag storage tank; 115. Pulley block ; 116. Inclined groove; 117. Annular groove; 118. Rotating block; 119. Pulley block; 1110. Torsion spring II; 1111. Insert block I; 1112. Insert block II; 1113. Slide plate; 1114. Spring I; 1115. Limiting block; 1116. Limiting groove; 1117. Guide post; 1118. Sliding plate; 1119. Spring II; 1120. Pressure rod; 1121. Inclined slider; 1122. Lifting rod. Detailed Implementation
[0015] To make the technical means, creative features, objectives, and effects of this invention readily understandable, the invention is further described below with reference to specific illustrations. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0016] Please see Figure 1 - Figure 11 This invention provides a technical solution: a twin-screw extruder granulator for industrial solid waste based on resource recycling, comprising a worktable 1, a granulator body 2 and a controller 3, a feed inlet 4 connected to the granulator body 2, a discharge outlet 5 on one side wall of the worktable 1, a screening box 6 on one side of the worktable 1, an inclined surface 7 at the bottom of the inner cavity of the screening box 6, a motor 8 fixedly connected to the side wall of the inclined surface 7, and a rotating shaft 9 fixedly connected to the output shaft of the motor 8, and further comprising: Screening mechanism 10 is capable of separating metal sieves when selecting tangled plastic bags; screening mechanism 10 is located inside rotating shaft 9. And a cleaning mechanism 11, which can automatically collect metal debris from the plastic bag, is located inside the rotating shaft 9.
[0017] Several rotating shafts 9 are provided at equal intervals along the direction of the inclined plane 7.
[0018] Specifically, the automatic impurity removal replaces manual labor, improving pre-treatment efficiency. The equipment integrates a screening and cleaning mechanism 11, which can automatically separate plastic bags and metal scraps from industrial solid waste, eliminating the need for manual sorting in advance, significantly reducing labor costs, and adapting to the needs of large-scale and continuous granulation of industrial solid waste.
[0019] Protecting core equipment and reducing maintenance losses involves pre-screening metal debris and removing plastic bags to prevent metal damage to screws and dies, as well as plastic bags entangled in equipment causing jamming. This effectively reduces equipment failures and maintenance frequency, and extends equipment lifespan.
[0020] Precise separation of impurities improves resource recycling rate. By using triboelectric attraction to adsorb plastic bags and magnetic attraction to adsorb metal fragments, the two types of impurities are efficiently separated and can be recycled and reused separately, optimizing the resource utilization effect of solid waste and improving the quality of recycled pellets.
[0021] This invention integrates impurity separation with twin-screw extrusion granulation, solving the problems of inadequate impurity removal and inefficient sorting in traditional granulators. It balances production efficiency, equipment protection, and resource recycling, meeting the environmental protection and energy-saving needs of industrial solid waste resource utilization.
[0022] In another embodiment of the present invention, the screening mechanism 10 includes a sleeve 101, which is movably disposed inside the rotating shaft 9. A pointed cone 102 is fixedly connected to the outer wall of the rotating shaft 9, and a rotating shaft 103 is fixedly connected inside the rotating shaft 9. A protrusion 104 is fixedly connected to the outer wall of the end of the rotating shaft 103 away from the motor 8, and a groove 105 is provided on the sleeve 101.
[0023] Specifically, the automatic impurity removal replaces manual labor, improving pre-treatment efficiency. The equipment integrates a screening and cleaning mechanism 11, which can automatically separate plastic bags and metal scraps from industrial solid waste, eliminating the need for manual sorting in advance, significantly reducing labor costs, and adapting to the needs of large-scale and continuous granulation of industrial solid waste.
[0024] In another embodiment of the present invention, the cleaning mechanism 11 includes a collar 111, which is sleeved on the end of the sleeve 101 near the motor 8. A torsion spring 112 is fixedly connected between the outer wall of the collar 111 and the rotating shaft 9. A slag storage groove 114 is formed on the outer wall of the rotating shaft 9. A lever 119 is fixedly connected to the outer wall of the sleeve 101. A rotating block 118 is rotatably disposed inside the rotating shaft 9. A torsion spring 1110 is fixedly connected between the outer wall of the rotating block 118 and the rotating shaft 9. A [missing information - likely a component or element] is fixedly connected to the rotating block 118. A toggle block 115 has a scraper rod 113 fixedly connected to its upper end. A lifting rod 1122 is inserted into one end of the toggle block 115 near the sleeve 101. A guide post 1117 is fixedly connected to one end of the lifting rod 1122. An annular groove 117 is formed inside the rotating shaft 9. An inclined groove 116 is provided at one end of the annular groove 117. The guide post 1117 is movably disposed within the annular groove 117 and the inclined groove 116. A sliding plate 111 is slidably disposed at the end of the rotating shaft 103 away from the motor 8. 8. A spring 1119 is fixedly connected to one end of the slider 1118 and the rotating shaft 103. A plug 1112 is fixedly connected to the end of the slider 1118 away from the motor 8. The plug 1112 is horizontally inserted into the rotating shaft 103. The end of the torsion spring 112 extending out of the rotating shaft 103 abuts against the plug 1111. A slide plate 1113 is fixedly connected to the end of the plug 1111 away from the plug 1112. The slide plate 1113 is fixedly connected to the screening box 6 pieces by a spring 111. 4. Both the first insert block 1111 and the second insert block 1112 have rounded corners. The end of the sliding plate 1113 near the sleeve 101 is fixedly connected to the limiting block 1115. The sleeve 101 has a limiting groove 1116. The limiting block 1115 is movably inserted into the limiting groove 1116. The end of the sleeve 101 located inside the collar 111 is fixedly connected to the pressure rod 1120. The pressure rod 1120 abuts against the inclined slider 1121. The inclined slider 1121 is fixedly connected to the inner wall of the collar 111.
[0025] After the protrusion 104 rubs against the sleeve 101, both the rotating shaft 103 and the rotating shaft 9 become charged. The inclined slider 1121 is conductive and connected to the external metal. The limiting block 1115 and the inclined slider 1121 are magnetic. The attraction between the limiting block 1115 and the limiting groove 1116 is greater than the attraction between the sleeve 101 and the inclined slider 1121.
[0026] Two inclined sliders 1121 are provided, and there is a gap between the two inclined sliders 1121. An inclined sliding surface is provided at the end of the inclined slider 1121 near the sleeve 101.
[0027] When the rotating shaft 103 rotates counterclockwise, the insert block 1111 will be squeezed toward the side away from the sleeve 101. When the rotating shaft 103 rotates counterclockwise, the bottom end of the lifting rod 1122 can drive the dial block 119 to rotate. The magnetism inside the sleeve 101 near the dial block 119 is stronger, and the metal plate set in the part of the slag storage groove 114 near the inclined groove 116 is thicker.
[0028] Specifically, this protects core equipment, reduces maintenance losses, and proactively removes metal debris and plastic bags to prevent metal damage to screws and dies, as well as plastic bags from getting tangled in the equipment and causing jams. This effectively reduces equipment failures and maintenance frequency, and extends equipment lifespan.
[0029] Precise separation of impurities improves resource recycling rate. By using triboelectric attraction to adsorb plastic bags and magnetic attraction to adsorb metal fragments, the two types of impurities are efficiently separated and can be recycled and reused separately, optimizing the resource utilization effect of solid waste and improving the quality of recycled pellets.
[0030] Working principle: When using this device, first pour solid waste into the inclined plane 7 from the side closest to the granulator body 2. The solid waste will then slide down. At this time, the motor 8 rotates the rotating shaft 9 clockwise. The rotation of the rotating shaft 9 allows the pointed cone 102 to screen out plastic bags from metal and other waste. When the rotating shaft 9 rotates clockwise, the sleeve 101 is limited by the limiting block 1115, preventing it from rotating. This allows the protrusion 104 on the rotating shaft 103 to contact the inner wall of the sleeve 101. Friction generates electricity, which allows the outer wall of the rotating shaft 9 to attract the plastic bag, enhancing the wrapping effect and preventing the plastic bag fragments from being too small to be tightly wrapped around the rotating shaft 9. Furthermore, because the sleeve 101 is magnetic and the metal in the slag storage tank 114 is thinner, most of the metal fragments are attracted to the slag storage tank 114, preventing the metal fragments from being difficult to select in subsequent processes. It also allows for the initial separation of metal fragments from the plastic bag, enabling the comprehensive utilization of various solid wastes. After screening, stop motor 8, remove the plastic bag wrapped around the rotating shaft 9, and then put the plastic bag into the granulator body 2 through the feed port 4 for the melting and granulation process. After the plastic bag is removed, personnel move away from the rotating shaft 9 and turn motor 8 counterclockwise. The rotating shaft 9 rotates accordingly, so that when it rotates counterclockwise, the first insert 1111 is squeezed by the second insert 1112 toward the side away from the sleeve 101, so that the limiting block 1115 can be pulled out from the limiting groove 1116. 15. Move away from sleeve 101 so that inclined slider 1121 can attract sleeve 101, causing sleeve 101 to drive pressure rod 1120 to move towards the side closer to inclined slider 1121. Then, pressure rod 1120 presses the inclined sliding surface on inclined slider 1121, causing inclined slider 1121 to rotate. After pressure rod 1120 inserts into the gap between adjacent inclined sliders 1121, sleeve 101 stops sliding. At this time, when rotating counterclockwise, the bottom end of lifting rod 1122 will move the lever 119. The actuating block 119 moves toward the side closer to the inclined groove 116, and the actuating block 115 drives the scraper 113 to rotate, scraping away the metal debris in the inner cavity of the slag storage tank 114. Because the metal plate installed in the part of the slag storage tank 114 near the inclined groove 116 is thicker, the attraction force on the metal debris is reduced, making it easier for the metal debris to fall off. When the lifting rod 1122 moves to the inclined groove 116, the guide column 1117 will move upward along the inclined groove 116, so that the lifting rod 1122 and the actuating block 119 move toward the side closer to the inclined groove 116. After block 119 separates, sleeve 101 will automatically reset due to the elasticity of torsion spring 112. When sleeve 101 shakes, the magnetic part of sleeve 101 moves away from metal debris, further preventing the influence of the sleeve 101's own magnetism on chip removal. Moreover, it can automatically generate vibration when shaking, which, together with the rotation of shaft 9, can make the metal debris fall off more thoroughly. When rotated clockwise, sleeve 101 automatically resets, and due to the attraction force, limit block 1115 is inserted into limit groove 1116.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. A twin-screw extrusion granulator for industrial solid waste based on resource recycling, comprising a worktable (1), wherein the worktable (1) is provided with a granulator body (2) and a controller (3), the granulator body (2) is connected to a feed inlet (4), a discharge outlet (5) is provided on one side wall of the worktable (1), a screening box (6) is provided on one side of the worktable (1), the bottom end of the inner cavity of the screening box (6) is provided with an inclined surface (7), a motor (8) is fixedly connected to the side wall of the inclined surface (7), and a rotating shaft (9) is fixedly connected to the output shaft of the motor (8), characterized in that, Also includes: The screening mechanism (10) is capable of separating the metal sieve when selecting and wrapping plastic bags, and the screening mechanism (10) is disposed inside the rotating shaft (9); And a cleaning mechanism (11) that can automatically collect metal debris from the plastic bag, the cleaning mechanism (11) being located inside the rotating shaft (9).
2. The industrial solid waste twin-screw extruder granulator based on resource recycling according to claim 1, characterized in that: The screening mechanism (10) includes a sleeve (101), which is movably disposed inside a rotating shaft (9). A pointed cone (102) is fixed to the outer wall of the rotating shaft (9), and a rotating shaft (103) is fixed to the inside of the rotating shaft (9). A protrusion (104) is fixed to the outer wall of the end of the rotating shaft (103) away from the motor (8), and a groove (105) is provided on the sleeve (101).
3. The industrial solid waste twin-screw extruder granulator based on resource recycling according to claim 2, characterized in that: The cleaning mechanism (11) includes a collar (111), which is sleeved on the end of the sleeve (101) near the motor (8). A torsion spring (112) is fixed between the outer wall of the collar (111) and the rotating shaft (9). A slag storage groove (114) is provided on the outer wall of the rotating shaft (9). A lever (119) is fixed to the outer wall of the sleeve (101). A rotating block (118) is rotatably arranged inside the rotating shaft (9). A torsion spring (1110) is fixed between the outer wall of the rotating block (118) and the rotating shaft (9). A lever (115) is fixed to the rotating block (118). The upper end of the actuating block (115) is fixedly connected to a scraper (113). A lifting rod (1122) is inserted into one end of the actuating block (115) near the sleeve (101). A guide post (1117) is fixedly connected to one end of the lifting rod (1122). An annular groove (117) is opened in the rotating shaft (9). An inclined groove (116) is provided at one end of the annular groove (117). The guide post (1117) is movably arranged in the annular groove (117) and the inclined groove (116). A sliding piece (1118) is slidably arranged at the end of the rotating shaft (103) away from the motor (8). A spring (1119) is fixedly connected to one end of the slider (1118) and the rotating shaft (103). A plug (1112) is fixedly connected to the end of the slider (1118) away from the motor (8). The plug (1112) is horizontally inserted into the rotating shaft (103). The end of the torsion spring (112) extending out of the rotating shaft (103) abuts against the plug (1111). A sliding plate (1113) is fixedly connected to the end of the plug (1111) away from the plug (1112). A spring (1114) is fixedly connected to the sliding plate (1113) and the screening box (6). Both the first insert (1111) and the second insert (1112) are provided with rounded corners. The end of the sliding plate (1113) near the sleeve (101) is fixedly connected to a limiting block (1115). A limiting groove (1116) is opened on the sleeve (101). The limiting block (1115) is movably inserted into the limiting groove (1116). A pressure rod (1120) is fixedly connected to the end of the sleeve (101) located inside the collar (111). The pressure rod (1120) abuts against a slanted slider (1121). The slanted slider (1121) is fixedly connected to the inner wall of the collar (111).
4. The industrial solid waste twin-screw extruder granulator based on resource recycling according to claim 1, characterized in that: The rotating shaft (9) is provided at equal intervals along the direction of the inclined plane (7).
5. The industrial solid waste twin-screw extruder granulator based on resource recycling according to claim 2, characterized in that: The groove (105) is located on the side of the protrusion (104) away from the motor (8).
6. The industrial solid waste twin-screw extruder granulator based on resource recycling according to claim 3, characterized in that: After the protrusion (104) rubs against the sleeve (101), both the rotating shaft (103) and the rotating shaft (9) can become charged. The inclined slider (1121) is conductive and connected to the external metal. The limiting block (1115) and the inclined slider (1121) are magnetic. The attraction between the limiting block (1115) and the limiting groove (1116) is greater than the attraction between the sleeve (101) and the inclined slider (1121).
7. The industrial solid waste twin-screw extruder granulator based on resource recycling according to claim 3, characterized in that: Two inclined sliders (1121) are provided, and a gap is left between the two inclined sliders (1121). An inclined sliding surface is provided at one end of the inclined slider (1121) near the sleeve (101).
8. The industrial solid waste twin-screw extruder granulator based on resource recycling according to claim 3, characterized in that: When the rotating shaft (103) rotates counterclockwise, the first insert (1111) will be squeezed toward the side away from the sleeve (101). When the rotating shaft (103) rotates counterclockwise, the bottom end of the lifting rod (1122) can drive the dial (119) to rotate. The magnetism inside the sleeve (101) near the dial (119) is stronger. The metal plate set in the slag storage tank (114) near the inclined groove (116) is thicker.