A solid waste crushing, grading and screening device and treatment process

Abstract

The present invention discloses a crushing, grading and screening device and a treatment process for solid waste, which relates to the technical field of screening equipment. The specific steps are as follows: Step 1: pretreatment; Step 2: crushing; Step 3: grading and screening. After the waste is crushed by a crusher, the crushed waste is put into a drum screening machine for screening. The drum screening machine includes a base, a rotating drum is provided above the base, and the rotating drum is composed of an upper cylinder and a lower cylinder. The upper cylinder and the lower cylinder are respectively provided with sieve holes of different apertures, and a discharge hopper is provided below the upper cylinder and the lower cylinder. A guide plate is provided at one end of the lower cylinder away from the upper cylinder, and the upper cylinder and the lower cylinder are installed and operated by an installation mechanism. The present invention facilitates the rapid disassembly and installation of the drum by providing an installation mechanism, and facilitates the adjustment of the sieve hole size on the screening machine by replacing the drum.

Description

Technical Field

[0001] The present invention relates to the technical field of screening equipment, in particular to a solid waste crushing, grading and screening device and a treatment process. Background Art

[0002] Solid waste refers to solid and semi-solid waste generated by humans in production, consumption, daily life, and other activities. Due to the enormous amount of solid waste produced, its indiscriminate storage can damage the natural ecosystem, occupy significant land resources, and affect the habitats and living space of plants and animals. Scientific treatment methods, such as waste sorting, recycling, and harmless disposal, can reduce the land occupation of solid waste and protect the integrity of ecosystems and biodiversity.

[0003] In the solid waste treatment process, crushing and classification recycling are important processing links. Especially after crushing, it needs to be graded and screened, and at this time a drum screening machine is needed. When using the drum screening machine, the objects are filtered and screened through the sieve holes on the drum. However, when adjusting the size of the sieve holes, the screening machine needs to be disassembled as a whole before the drums with different sieve hole diameters can be disassembled and replaced, which is a relatively complicated operation. In order to facilitate the replacement of the drum to adjust the sieve hole diameter, and thus achieve the effect of improving the crushing, grading and screening efficiency of solid waste, a solid waste crushing, grading and screening device and treatment process are provided. Summary of the Invention

[0004] The purpose of the present invention is to provide a solid waste crushing, grading and screening device and a processing process in order to facilitate the replacement of the drum.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a solid waste crushing and grading screening device, comprising a crusher and a drum screening machine, the drum screening machine comprising a base, a rotating drum being arranged above the base, the rotating drum being composed of an upper drum and a lower drum, the upper drum and the lower drum being respectively provided with sieve holes of different apertures, a discharge hopper being arranged below the upper drum and the lower drum, a guide plate being arranged at one end of the lower drum away from the upper drum, the upper drum and the lower drum being mounted and operated by a mounting mechanism; the mounting mechanism comprising a gear ring and a support ring, the gear ring and the support ring being respectively The cam is fixedly connected to one end of the upper cylinder and the lower cylinder away from each other, and the ends of the upper cylinder and the lower cylinder close to each other are fixedly connected to a docking ring, the top of the base is provided with a movable groove, the inner wall of the movable groove is slidably connected with a movable seat, one end of the base is installed with a first motor, the output end of the first motor is connected with a first threaded rod, the first threaded rod passes through the movable seat, the top of the movable seat is fixedly connected with a first support seat, the top of the first support seat is provided with a first support groove, the top of the base is fixedly connected with a second support seat, and the top of the second support seat is provided with a second support groove.

[0006] As a further solution of the present invention: the mounting mechanism also includes two docking seats, which are respectively fixedly connected to the top of the movable seat and the base, and a connecting groove is provided at the top of the docking seat. A second motor is installed on the outer wall of the second support seat, and the output end of the second motor is connected to a spur gear, which extends to the inner cavity of the second support groove. An insertion rod is fixedly connected to one end of the upper cylinder facing the lower cylinder, and a socket is provided at one end of the lower cylinder facing the upper cylinder. One of the discharge hoppers is fixedly connected to the base, and the other discharge hopper is fixedly connected to the movable seat. The guide plate is fixedly connected to the first support seat, and the two docking seats are reinforced by a reinforcement mechanism.

[0007] As a further solution of the present invention: the reinforcement mechanism includes an annular groove, the annular groove is opened on the outer wall of the docking ring, the top of the base is symmetrically fixedly connected with a mounting plate, the outer wall of the mounting plate is rotatably connected with a rotating block, a second threaded rod is fixedly connected between the two rotating blocks, the outer wall of the second threaded rod is symmetrically slidably connected with a displacement plate, the outer wall of the displacement plate is fixedly connected with a C-shaped positioning frame, the top of the positioning frame is symmetrically fixedly connected with a connecting frame, and the top of the connecting frame is fixedly connected with a sliding rod.

[0008] As a further solution of the present invention: the reinforcement mechanism also includes an arc-shaped plate, which is slidably connected to the interior of the docking seat, and the arc-shaped plate extends to the inner wall of the connecting groove. The bottom end of the arc-shaped plate is fixedly connected to a displacement block, and the bottom end of the displacement block is rotatably connected to a connecting rod, and the bottom end of the connecting rod is rotatably connected to a pushing frame, and the pushing frame is slidably connected to the interior of the docking seat and extends out of both sides of the docking seat. Transverse grooves are symmetrically provided on both sides of the pushing frame, and an inclined groove is provided at one end of the transverse groove.

[0009] As a further solution of the present invention: the outer wall of the insertion rod is in contact with the inner wall of the insertion hole, the outer wall of the gear ring is provided with a tooth groove, and the tooth groove is engaged with the spur gear.

[0010] As a further solution of the present invention: the outer wall of the gear ring fits with the inner wall of the second support groove, the inner wall of the first support groove fits with the outer wall of the support ring, and the inner wall of the connecting groove fits with the outer wall of the docking ring.

[0011] As a further solution of the present invention: the inner wall of the movable groove is in contact with the outer wall of the movable seat, the outer wall of the movable seat is provided with a first threaded hole, and the first threaded hole matches the first threaded rod.

[0012] As a further solution of the present invention: a second threaded hole is opened on the outer wall of the displacement plate, and external threads are symmetrically provided on the outer wall of the second threaded rod. The external threads match the second threaded hole, and the inner wall of the positioning frame fits with the outer walls of the two docking seats.

[0013] As a further solution of the present invention: the inner wall of the annular groove fits with the outer wall of the arc-shaped plate, and the inner walls of the transverse groove and the oblique groove fit with the outer wall of the slide rod.

[0014] A solid waste crushing, grading and screening process comprises the following steps:

[0015] Step 1: Pretreatment: sorting to remove unbreakable items, using magnetic separation to remove magnetic metal substances in the waste, using a winnowing machine to separate and remove light materials, and then obtain pretreated waste;

[0016] Step 2: Crushing: Use a jaw crusher to crush the waste pretreated in step 1; use an impact crusher to crush the coarsely crushed material for secondary crushing;

[0017] Step 3: Grading and screening; the crushed waste is passed through a drum screening machine to separate impurities from the material, and after multi-stage screening, it is collected according to particle size.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. By setting up an installation mechanism, when removing the upper and lower cylinders, the first motor drives the movable seat to move, and the movable seat moves the upper and lower cylinders away from each other until the insertion rod moves out of the insertion hole. At this time, the upper and lower cylinders can be removed and replaced separately. This design facilitates the rapid removal and installation of the drum, and the adjustment of the sieve size on the screening machine is convenient by replacing the drum.

[0020] 2. By setting up a reinforcement mechanism, when the two docking seats are fitted together, the rotating block can be rotated to drive the positioning frame to move, so that the two docking seats enter the inner wall of the positioning frame, thereby reinforcing the close fit between the docking seats and preventing the upper cylinder and the lower cylinder from moving away from each other; at the same time, the sliding rod slides along the horizontal groove into the inclined groove, and the sliding rod slides in the inclined groove, driving the pushing frame to move, and the arc plate moves into the annular groove, which is convenient for reinforcing the upper cylinder and the lower cylinder to prevent the upper cylinder and the lower cylinder from loosening during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 Schematic diagram of the installation of the upper cylinder and the lower cylinder of the present invention;

[0023] Figure 3 Schematic diagram of the internal structure of the base of the present invention;

[0024] Figure 4 Schematic diagram of the internal structure of the upper cylinder and the lower cylinder of the present invention;

[0025] Figure 5 This is a schematic diagram of the installation of the positioning frame of the present invention;

[0026] Figure 6 Schematic diagram of the internal structure of the docking seat of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the pushing frame of the present invention.

[0028] In the figure: 1, base; 2, upper cylinder; 3, lower cylinder; 4, sieve hole; 5, discharge hopper; 6, guide plate; 7, mounting mechanism; 701, gear ring; 702, support ring; 703, docking ring; 704, movable groove; 705, movable seat; 706, first motor; 707, first threaded rod; 708, first support seat; 709, first support groove; 710, second support seat; 711, second support groove; 712, second motor; 71 3. Spur gear; 714. Docking seat; 715. Connecting groove; 716. Insert rod; 717. Socket; 8. Reinforcement mechanism; 801. Annular groove; 802. Mounting plate; 803. Rotating block; 804. Second threaded rod; 805. Displacement plate; 806. Positioning frame; 807. Connecting frame; 808. Sliding rod; 809. Arc plate; 810. Displacement block; 811. Connecting rod; 812. Pushing frame; 813. Transverse groove; 814. Oblique groove. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or connected in one piece; they can be mechanically connected or electrically connected; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internal connections between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following describes an embodiment of the present invention based on its overall structure.

[0031] In an embodiment of the present invention, a process for crushing, grading, screening and treating solid waste comprises the following specific steps:

[0032] Step 1: Pretreatment: sorting to remove unbreakable items, using magnetic separation to remove magnetic metal substances in the waste, using a winnowing machine to separate and remove light materials, and then obtain pretreated waste;

[0033] Step 2: Crushing: Use a jaw crusher to crush the waste pretreated in step 1; use an impact crusher to crush the coarsely crushed material for secondary crushing;

[0034] Step 3: Grading and screening; the crushed waste is passed through a drum screening machine to separate impurities from the material, and after multi-stage screening, it is collected according to particle size.

[0035] See also Figures 1 to 7 A solid waste crushing, grading and screening equipment includes a crusher and a drum screening machine. The drum screening machine used in step three includes a base 1, a rotating drum is arranged above the base 1, and the rotating drum is composed of an upper cylinder 2 and a lower cylinder 3. The upper cylinder 2 and the lower cylinder 3 are respectively provided with sieve holes 4 with different apertures, and a discharge hopper 5 is provided below the upper cylinder 2 and the lower cylinder 3. A guide plate 6 is provided at the end of the lower cylinder 3 away from the upper cylinder 2. The upper cylinder 2 and the lower cylinder 3 are installed and operated through an installation mechanism 7.

[0036] In this embodiment, after the waste is crushed by the crusher, it is fed into the drum screening machine for screening. The waste is first poured into the upper drum 2. The waste moves along the upper drum 2, the lower drum 3, and the guide plate 6 in sequence, and is screened by the sieve holes 4. Smaller waste moves out of the drum through the sieve holes 4 and falls into the discharge hopper 5, through which it is discharged.

[0037] Please refer to Figures 1 to 4The mounting mechanism 7 includes a gear ring 701 and a support ring 702. The gear ring 701 and the support ring 702 are respectively fixedly connected to the ends of the upper cylinder 2 and the lower cylinder 3 that are away from each other. The ends of the upper cylinder 2 and the lower cylinder 3 that are close to each other are fixedly connected with a docking ring 703. A movable groove 704 is provided at the top of the base 1. A movable seat 705 is slidably connected to the inner wall of the movable groove 704. A first motor 706 is installed at one end of the base 1. The output end of the first motor 706 is connected to a first threaded rod 707. The first threaded rod 707 runs through the movable seat 705. The top of the movable seat 705 is fixedly connected to a first support seat 708. A first support groove 709 is provided at the top of the first support seat 708. The top of the base 1 is fixedly connected to a second support seat 710. The top of the second support seat 710 is provided with a There is a second supporting groove 711, and the mounting mechanism 7 also includes two docking seats 714, which are respectively fixedly connected to the movable seat 705 and the top of the base 1, and a connecting groove 715 is provided at the top of the docking seat 714. A second motor 712 is installed on the outer wall of the second supporting seat 710, and the output end of the second motor 712 is connected to a spur gear 713, which extends to the inner cavity of the second supporting groove 711. An insertion rod 716 is fixedly connected to one end of the upper cylinder 2 facing the lower cylinder 3, and a socket 717 is provided at one end of the lower cylinder 3 facing the upper cylinder 2. One discharge hopper 5 is fixedly connected to the base 1, and the other discharge hopper 5 is fixedly connected to the movable seat 705. The guide plate 6 is fixedly connected to the first supporting seat 708, and the two docking seats 714 are reinforced by a reinforcement mechanism 8.

[0038] In this embodiment: when driving the upper cylinder 2 and the lower cylinder 3 to rotate, the second motor 712 is started, and the second motor 712 drives the spur gear 713 to rotate, and the spur gear 713 rotates to drive the gear ring 701 to rotate, and the gear ring 701 rotates to drive the upper cylinder 2 to rotate, and the upper cylinder 2 rotates to drive the lower cylinder 3 to rotate synchronously through the insertion rod 716.

[0039] When installing the upper cylinder 2 and the lower cylinder 3, the upper cylinder 2 and the lower cylinder 3 are moved to the top of the base 1 and the movable seat 705 respectively, the gear ring 701 enters the second support groove 711, the support ring 702 enters the first support groove 709, and the docking ring 703 enters the connecting groove 715. At this time, the upper cylinder 2 can be rotated at the top of the second support seat 710 and the docking seat 714, and the lower cylinder 3 can be rotated at the top of the docking seat 714 and the first support seat 708. The rod 716 and the socket 717 are aligned, and then the first motor 706 is started. The operation of the first motor 706 drives the first threaded rod 707 to rotate, and the rotation of the first threaded rod 707 drives the movable seat 705 to slide in the movable groove 704. The displacement of the movable seat 705 drives the lower cylinder 3 to move. When the two docking seats 714 are in contact with each other, the upper cylinder 2 and the lower cylinder 3 are completed. The insertion rod 716 is inserted into the socket 717 to complete the docking installation of the upper cylinder 2 and the lower cylinder 3.

[0040] When dismantling the upper cylinder 2 and the lower cylinder 3, it is only necessary to start the first motor 706. The operation of the first motor 706 drives the movable seat 705 to move. The displacement of the movable seat 705 drives the upper cylinder 2 and the lower cylinder 3 to move away from each other until the insertion rod 716 moves out of the insertion hole 717. At this time, the upper cylinder 2 and the lower cylinder 3 can be disassembled and replaced separately. This design facilitates the rapid disassembly and installation of the drum, and the size of the sieve hole 4 on the screening machine can be adjusted conveniently by replacing the drum.

[0041] Please refer to Figures 4 to 7 The reinforcement mechanism 8 includes an annular groove 801, which is opened on the outer wall of the docking ring 703. The top of the base 1 is symmetrically fixedly connected with a mounting plate 802. The outer wall of the mounting plate 802 is rotatably connected with a rotating block 803. A second threaded rod 804 is fixedly connected between the two rotating blocks 803. The outer wall of the second threaded rod 804 is symmetrically slidably connected with a displacement plate 805. The outer wall of the displacement plate 805 is fixedly connected with a C-shaped positioning frame 806. The top of the positioning frame 806 is symmetrically fixedly connected with a connecting frame 807. The top of the connecting frame 807 is fixedly connected with a sliding rod 8 08. The reinforcement mechanism 8 also includes an arc-shaped plate 809, which is slidably connected to the inside of the docking seat 714 and extends to the inner wall of the connecting groove 715. The bottom end of the arc-shaped plate 809 is fixedly connected to a displacement block 810, and the bottom end of the displacement block 810 is rotatably connected to a connecting rod 811. The bottom end of the connecting rod 811 is rotatably connected to a pushing frame 812. The pushing frame 812 is slidably connected to the inside of the docking seat 714 and extends out of both sides of the docking seat 714. Horizontal grooves 813 are symmetrically provided on both sides of the pushing frame 812, and an inclined groove 814 is provided at one end of the horizontal groove 813.

[0042] In this embodiment, when the two docking seats 714 are fitted together, the rotating block 803 can be rotated, and the rotating block 803 rotates to drive the second threaded rod 804 to rotate, and the second threaded rod 804 rotates to drive the two displacement plates 805 to move in the opposite direction, and the displacement of the displacement plate 805 drives the positioning frame 806 to move, so that the two docking seats 714 enter the inner wall of the positioning frame 806, thereby reinforcing the close contact between the docking seats 714 and preventing the upper cylinder 2 and the lower cylinder 3 from moving away from each other; at the same time, during the displacement of the positioning frame 806, the connecting frame 807 is driven to move, and the displacement of the connecting frame 807 drives The slide bar 808 is displaced, and the slide bar 808 is displaced into the transverse groove 813, and slides along the transverse groove 813 into the inclined groove 814. The slide bar 808 slides in the inclined groove 814, driving the push frame 812 to displace. The displacement of the push frame 812 drives the displacement block 810 to displace through the connecting rod 811. The displacement of the displacement block 810 drives the arc plate 809 to displace. The arc plate 809 is displaced into the annular groove 801. When the upper cylinder 2 and the lower cylinder 3 rotate, the arc plate 809 can slide in the annular groove 801, thereby preventing the upper cylinder 2 and the lower cylinder 3 from loosening during rotation. This design facilitates the reinforcement operation of the upper cylinder 2 and the lower cylinder 3, preventing the upper cylinder 2 and the lower cylinder 3 from loosening during use.

[0043] Please refer to Figures 1 to 4 The outer wall of the insertion rod 716 fits with the inner wall of the insertion hole 717 , and the outer wall of the gear ring 701 is provided with a tooth groove, which meshes with the spur gear 713 .

[0044] In this embodiment: when the upper cylinder 2 and the lower cylinder 3 are connected, the insertion rod 716 is inserted into the insertion hole 717; the second motor 712 runs to drive the spur gear 713 to rotate, the rotation of the spur gear 713 drives the gear ring 701 to rotate, the rotation of the gear ring 701 drives the upper cylinder 2 to rotate, and the rotation of the upper cylinder 2 drives the lower cylinder 3 to rotate synchronously through the insertion rod 716.

[0045] Please refer to Figures 1 to 4 The outer wall of the gear ring 701 fits with the inner wall of the second support groove 711 , the inner wall of the first support groove 709 fits with the outer wall of the support ring 702 , and the inner wall of the connecting groove 715 fits with the outer wall of the docking ring 703 .

[0046] In this embodiment: when installing the upper cylinder 2 and the lower cylinder 3, the upper cylinder 2 and the lower cylinder 3 are moved to the top of the base 1 and the movable seat 705 respectively, the gear ring 701 enters the second support groove 711, the support ring 702 enters the first support groove 709, and the docking ring 703 enters the connecting groove 715. At this time, the upper cylinder 2 can be rotated at the top of the second support seat 710 and the docking seat 714, and the lower cylinder 3 can be rotated at the top of the docking seat 714 and the first support seat 708.

[0047] Please refer to Figures 1 to 4 The inner wall of the movable groove 704 fits with the outer wall of the movable seat 705 , and the outer wall of the movable seat 705 is provided with a first threaded hole, which matches the first threaded rod 707 .

[0048] In this embodiment: the operation of the first motor 706 drives the first threaded rod 707 to rotate, the rotation of the first threaded rod 707 drives the movable seat 705 to slide in the movable groove 704, the displacement of the movable seat 705 drives the lower cylinder 3 to displace, when the two docking seats 714 are in contact, the upper cylinder 2 and the lower cylinder 3 are completed in contact, the insertion rod 716 is inserted into the socket 717, and the installation of the upper cylinder 2 and the lower cylinder 3 is completed.

[0049] Please refer to Figures 4 to 7 A second threaded hole is provided on the outer wall of the displacement plate 805 , and external threads are symmetrically provided on the outer wall of the second threaded rod 804 , which match the second threaded hole. The inner wall of the positioning frame 806 fits with the outer walls of the two docking seats 714 .

[0050] In this embodiment: the rotating block 803 is rotated, and the rotating block 803 drives the second threaded rod 804 to rotate, and the second threaded rod 804 drives the two displacement plates 805 to displace in opposite directions, and the displacement of the displacement plate 805 drives the positioning frame 806 to displace, so that the two docking seats 714 enter the inner wall of the positioning frame 806, thereby reinforcing the close contact between the docking seats 714.

[0051] Please refer to Figures 4 to 7 The inner wall of the annular groove 801 fits with the outer wall of the arc plate 809 , and the inner walls of the transverse groove 813 and the oblique groove 814 fit with the outer wall of the slide bar 808 .

[0052] In this embodiment: during the displacement of the positioning frame 806, the connecting frame 807 is driven to be displaced, the displacement of the connecting frame 807 drives the sliding rod 808 to be displaced, the sliding rod 808 is displaced into the transverse groove 813, and slides along the transverse groove 813 into the inclined groove 814, the sliding rod 808 slides in the inclined groove 814, and drives the pushing frame 812 to be displaced, the displacement of the pushing frame 812 drives the displacement block 810 to be displaced through the connecting rod 811, the displacement of the displacement block 810 drives the arc plate 809 to be displaced, and the arc plate 809 is displaced into the annular groove 801. When the upper cylinder 2 and the lower cylinder 3 rotate, the arc plate 809 can slide in the annular groove 801.

[0053] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A solid waste crushing, grading and screening device, comprising a crusher and a drum screening machine, characterized in that: The drum screening machine comprises a base (1), a rotating drum is arranged above the base (1), and the rotating drum consists of an upper drum (2) and a lower drum (3), the upper drum (2) and the lower drum (3) are respectively provided with sieve holes (4) of different apertures, a discharge hopper (5) is arranged below the upper drum (2) and the lower drum (3), and a guide plate (6) is arranged at one end of the lower drum (3) away from the upper drum (2), and the upper drum (2) and the lower drum (3) are installed by an installation mechanism (7); the installation mechanism (7) comprises a gear ring (701) and a support ring (702), the gear ring (701) and the support ring (702) are respectively fixedly connected to the ends of the upper drum (2) and the lower drum (3) away from each other, and the upper drum (2) and the lower drum (3) are respectively fixedly connected to the ends of the upper drum (2) and the lower drum (3) away from each other. The ends of the lower cylinders (3) that are close to each other are fixedly connected to a docking ring (703), the top of the base (1) is provided with a movable groove (704), the inner wall of the movable groove (704) is slidably connected to a movable seat (705), one end of the base (1) is installed with a first motor (706), the output end of the first motor (706) is connected to a first threaded rod (707), the first threaded rod (707) passes through the movable seat (705), the top of the movable seat (705) is fixedly connected to a first support seat (708), the top of the first support seat (708) is provided with a first support groove (709), the top of the base (1) is fixedly connected to a second support seat (710), the top of the second support seat (710) is provided with a second support groove (711); The mounting mechanism (7) further comprises two docking seats (714), the two docking seats (714) being fixedly connected to the top of the movable seat (705) and the top of the base (1), respectively; a connecting groove (715) is provided at the top of the docking seat (714); a second motor (712) is mounted on the outer wall of the second support seat (710); an output end of the second motor (712) is connected to a spur gear (713), and the spur gear (713) extends to the inner cavity of the second support groove (711). The upper cylinder (2) is fixedly connected to one end of the lower cylinder (3) with an insertion rod (716), and the lower cylinder (3) is provided with a socket (717) at one end of the upper cylinder (2). One of the discharge hoppers (5) is fixedly connected to the base (1), and the other discharge hopper (5) is fixedly connected to the movable seat (705). The guide plate (6) is fixedly connected to the first support seat (708), and the two docking seats (714) are reinforced by a reinforcement mechanism (8). The reinforcing mechanism (8) includes an annular groove (801), the annular groove (801) is opened on the outer wall of the docking ring (703), the top of the base (1) is symmetrically fixedly connected to a mounting plate (802), the outer wall of the mounting plate (802) is rotatably connected to a rotating block (803), a second threaded rod (804) is fixedly connected between the two rotating blocks (803), the outer wall of the second threaded rod (804) is symmetrically slidably connected to a displacement plate (805), the outer wall of the displacement plate (805) is fixedly connected to a positioning frame (806) of a C-shaped structure, the top of the positioning frame (806) is symmetrically fixedly connected to a connecting frame (807), and the top of the connecting frame (807) is fixedly connected to a sliding rod (808); The reinforcing mechanism (8) further comprises an arc-shaped plate (809), wherein the arc-shaped plate (809) is slidably connected to the interior of the docking seat (714), and the arc-shaped plate (809) extends to the inner wall of the connecting groove (715), and the bottom end of the arc-shaped plate (809) is fixedly connected to a displacement block (810), and the bottom end of the displacement block (810) is rotatably connected to a connecting rod (811), and the bottom end of the connecting rod (811) is rotatably connected to a pushing frame (812), and the pushing frame (812) is slidably connected to the interior of the docking seat (714) and extends out of both sides of the docking seat (714), and transverse grooves (813) are symmetrically provided on both sides of the pushing frame (812), and an inclined groove (814) is provided at one end of the transverse groove (813).

2. The solid waste crushing, grading and screening equipment according to claim 1, characterized in that: The outer wall of the insertion rod (716) is fitted with the inner wall of the insertion hole (717), and the outer wall of the gear ring (701) is provided with a tooth groove, which is meshed with the spur gear (713).

3. The solid waste crushing, grading and screening equipment according to claim 1, characterized in that: The outer wall of the gear ring (701) fits with the inner wall of the second support groove (711), the inner wall of the first support groove (709) fits with the outer wall of the support ring (702), and the inner wall of the connecting groove (715) fits with the outer wall of the docking ring (703).

4. The solid waste crushing, grading and screening equipment according to claim 1, characterized in that: The inner wall of the movable groove (704) fits in contact with the outer wall of the movable seat (705), and the outer wall of the movable seat (705) is provided with a first threaded hole, which matches the first threaded rod (707).

5. The solid waste crushing, grading and screening equipment according to claim 1, characterized in that: The outer wall of the displacement plate (805) is provided with a second threaded hole, the outer wall of the second threaded rod (804) is symmetrically provided with external threads, the external threads match the second threaded hole, and the inner wall of the positioning frame (806) is in contact with the outer walls of the two docking seats (714).

6. The solid waste crushing, grading and screening equipment according to claim 1, characterized in that: The inner wall of the annular groove (801) fits in contact with the outer wall of the arc-shaped plate (809), and the inner walls of the transverse groove (813) and the inclined groove (814) fit in contact with the outer wall of the slide rod (808).

7. A processing process for a solid waste crushing, grading and screening device according to any one of claims 1 to 6, characterized in that: The specific steps are as follows: Step 1: Pretreatment: sorting to remove unbreakable items, using magnetic separation to remove magnetic metal substances in the waste, using a winnowing machine to separate and remove light materials, and then obtain pretreated waste; Step 2: Crushing: Use a jaw crusher to crush the waste pretreated in step 1; use an impact crusher to crush the coarsely crushed material for secondary crushing; Step 3: Grading and screening; the crushed waste is passed through a drum screening machine to separate impurities from the material, and after multi-stage screening, it is collected according to particle size.

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