Energy-saving and environment-friendly solid waste treatment device

Abstract

The invention discloses an energy-saving and environment-friendly solid waste treatment device and belongs to the technical field of solid waste treatment.The energy-saving and environment-friendly solid waste treatment device comprises a machine shell, a first-stage crushing box installed on the top wall of the machine shell and two second-stage crushing boxes installed in the machine shell, an inverted-V-shaped discharging plate is fixed in the machine shell, and openings are formed in the two sides of the discharging plate; an opening is formed in the bottom wall of the first-stage crushing box, a movable magnetic plate is arranged in the opening, crushing blocks with trapezoidal sections are movably arranged on the two sides of the first-stage crushing box, the two crushing blocks are driven by an external driving source to get close to each other to extrude solid waste, a discharging opening is formed in the bottom wall of the first-stage crushing box, and a plurality of stop levers are fixed in the discharging opening. The solid waste is firstly crushed and then crushed, subsequent treatment is facilitated, metal mixed in the solid waste can be recycled, and the purposes of environmental protection and saving are achieved.

Description

Technical Field

[0005] The present invention relates to the technical field of solid waste treatment, and in particular to an energy-saving and environment-friendly solid waste treatment device. Background Art

[0006] Solid waste treatment is a process of reducing its volume and accelerating its natural purification through physical means such as crushing, compression, drying, evaporation, incineration, etc. or biochemical actions such as oxidation, digestion decomposition, absorption, etc. and chemical actions such as pyrolysis and gasification.

[0007] For some solid wastes with recycling value, generally, the larger solid wastes are crushed into smaller ones through processing equipment, and then squeezed into dense blocks through extrusion. However, there are metal substances in these solid wastes, and metal substances can be recycled for secondary use. Directly squeezing the solid wastes will cause a large amount of metal substances to be wasted, which is not in line with the concept of environmental protection and conservation. Summary of the invention

[0008] The purpose of the present invention is to provide an energy-saving and environmentally friendly solid waste treatment device to solve the following technical problems: There are metal substances in solid waste, and direct squeezing of the solid waste will cause a large amount of metal substances to be wasted, which is not in line with the concept of environmental protection and conservation.

[0009] The purpose of the present invention can be achieved through the following technical solutions:

[0010] An energy-saving and environmentally friendly solid waste treatment device comprises a casing, a primary crushing box installed on the top wall of the casing, and two secondary crushing boxes installed in the casing, an inverted V-shaped unloading plate is fixed in the casing, both sides of the unloading plate are provided with openings, a movable magnetic plate is provided in the opening, crushing blocks with a trapezoidal cross section are movably provided on both sides of the primary crushing box, the two crushing blocks are driven by an external driving source to approach each other to squeeze the solid waste, a unloading opening is opened on the bottom wall of the primary crushing box, and a plurality of retaining rods are fixed in the unloading opening;

[0011] The unloading plate is symmetrically provided with a blocking mechanism, which includes a first blocking plate, one side of which is slidably connected to a second blocking plate, the movement of the crushing block drives the first blocking plate and the second blocking plate to move obliquely downward to block the solid waste, and the first blocking plate enters the opening to push the magnetic plate to move;

[0012] An automatic cleaning structure is arranged at the bottom of the unloading plate, and a scraper of the automatic cleaning structure is used to clean the metal adsorbed on the magnetic plate. Collection boxes are arranged on the top walls of the two secondary crushing boxes.

[0013] As a further solution of the present invention: the bottom wall of the primary crushing box is symmetrically provided with installation openings, a connecting rod is movably arranged in the installation opening, one end of the connecting rod is fixedly connected to the crushing block, and the other end is connected to a pushing ball, the material blocking mechanism also includes two fixed rods fixed to the unloading plate, both of the fixed rods are provided with sleeve blocks, the sleeve blocks are fixedly connected to the first material blocking plate, the fixed rods are provided with a first spring, a wedge block is fixed on the first material blocking plate, and the two pushing balls are respectively in contact with the two wedge blocks.

[0014] As a further solution of the present invention: inclined plates are fixed on the adjacent side walls of the two secondary crushing boxes, spring telescopic rods are installed on the inclined plates, and a connecting plate is fixed to one end of the spring telescopic rod on the same side, and the connecting plate is fixedly connected to the magnetic plate.

[0015] As a further solution of the present invention: a mounting seat is commonly fixed between the adjacent side walls of the two secondary crushing boxes, the automatic cleaning structure comprises a sleeve fixed on the mounting seat, both side walls of the sleeve are connected with an air outlet pipe, one end of the air outlet pipe is connected with a hollow plate, the lower surface of the blanking plate is symmetrically provided with grooves, the two hollow plates are both fixed in the grooves, the ends of the two hollow plates away from each other are both provided with an opening, the scraper is located in the opening, and a second spring is connected between the scraper and the inner wall of the hollow plate, and an air outlet hole is provided on the side of the hollow plate away from the blanking plate;

[0016] A piston plate is movably arranged in the sleeve, an air inlet pipe is connected to the piston plate, one-way valve mechanisms are installed in the air inlet pipe and the air outlet pipe, and a booster mechanism is also arranged above the piston plate for inflating and pressurizing the hollow plate.

[0017] As a further solution of the present invention: the boosting mechanism includes a fixed plate fixed on the top of the sleeve, a pressure rod is movably arranged on the fixed plate, one end of the pressure rod is fixedly connected to the piston plate, a notch is arranged in the middle position of the blanking plate, one end of the pressure rod passes through the notch and is connected to an inverted V-shaped force-bearing plate, and a third spring is connected between the force-bearing plate and the fixed plate.

[0018] As a further solution of the present invention: the one-way valve mechanism includes a circular hole plate with a circular hole in the middle, the circular hole plate is fixed in the air inlet pipe and the air outlet pipe, the circular hole plate is connected to an elastic rope, and one end of the elastic rope is connected to a sealing ball.

[0019] As a further solution of the present invention: crushing teeth are arranged in array on the side walls of the two crushing blocks close to each other, and two crushing rollers are rotatably installed in the secondary crushing box, and the crushing rollers are driven by an external motor.

[0020] Beneficial effects of the present invention:

[0021] (1) The present invention provides a primary crushing box and a secondary crushing box, firstly crushes the solid waste by the primary crushing box, crushes the larger solid waste into smaller solid waste, and then uses a feed plate to feed the solid waste into the secondary crushing box, crushes the solid waste into smaller solid waste, and conveniently squeezes it into blocks. The solid waste after the initial crushing passes through the feed plate, and the metal contained therein can be adsorbed by the magnetic plate, and then cooperates with the automatic cleaning structure to automatically clean the adsorbed metal, so as to effectively recover the solid waste in the solid waste, which is environmentally friendly and economical.

[0022] (2) The present invention provides a connecting rod, a pushing ball, a wedge block, a fixing rod and a first spring. When the two crushing blocks are close to each other, the pushing ball pushes the wedge block to move, so that the first baffle plate and the second baffle plate are lowered, and the second baffle plate first contacts the unloading plate to stop the solid waste from falling, thereby achieving intermittent unloading and reducing the working intensity of the secondary crushing box. It also avoids excessive solid waste between the two when the first baffle plate pushes the magnetic plate to move. Subsequently, the first baffle plate pushes the magnetic plate to move, and the scraper pushes the metal adsorbed between the two off. When the two crushing blocks are reset, the first baffle plate, the second baffle plate and the magnetic plate are automatically reset, and the solid waste falls normally at this time.

[0023] (3) The present invention sets structures such as a sleeve, an air outlet pipe, a hollow plate and a booster mechanism. When the solid waste continues to fall, it contacts the force plate. With the spring, the force plate drives the piston plate to move up and down continuously, thereby pressurizing the inside of the hollow plate. Due to the obstruction of the connecting plate, the scraper cannot move. When the first baffle plate completely enters the opening, the bottom end of the first baffle plate is flush with the bottom surface of the unloading plate. At this time, the scraper moves out of the hollow plate under the action of air pressure, scrapes off the metal adsorbed on the magnetic plate, and then the gas is discharged through the air outlet. Under the action of the second spring, the scraper automatically resets, and then the crushing block resets, the first baffle plate and the second baffle plate reset. Under the action of the spring telescopic rod, the connecting plate and the magnetic plate also automatically reset, which is convenient for subsequent processing. The operation of the booster mechanism does not require a driving source, which is energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the structure of the primary crushing box and crushing blocks of the present invention in a disassembled state;

[0027] Figure 3 It is a schematic diagram of the internal structure of the casing of the present invention;

[0028] Figure 4It is a structural schematic diagram of the blanking plate and the secondary crushing box of the present invention;

[0029] Figure 5 It is a structural schematic diagram of a blanking plate and a magnetic plate of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the automatic cleaning structure of the present invention;

[0031] Figure 7 It is a schematic diagram of the internal structure of the sleeve of the present invention;

[0032] Figure 8 It is a schematic diagram of the internal structure of the hollow plate of the present invention;

[0033] Fig. 9 It is a structural schematic diagram of the one-way valve mechanism of the present invention.

[0034] In the figure: 1, casing; 2, primary crushing box; 201, crushing block; 202, feeding port; 203, stop rod; 204, mounting port; 205, connecting rod; 206, pushing ball; 3, secondary crushing box; 4, feeding plate; 401, magnetic plate; 402, inclined plate; 403, spring telescopic rod; 404, connecting plate; 5, material blocking mechanism; 501, fixing rod; 502, sleeve block; 503, first spring; 504, first material blocking plate; 5 05. Wedge block; 506. Second material baffle plate; 6. Mounting seat; 7. Automatic cleaning structure; 701. Sleeve; 702. Fixed plate; 703. Pressure rod; 704. Force plate; 705. Third spring; 706. Piston plate; 707. Inlet pipe; 708. Outlet pipe; 709. Hollow plate; 710. Scraper; 711. Second spring; 712. Outlet hole; 713. Circular hole plate; 714. Elastic rope; 715. Sealing ball.

[0035] The drawings are only used for illustrative purposes and are not to be construed as limitations of the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced in size, and do not represent the size and shape of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-5As shown, the present invention is an energy-saving and environmentally friendly solid waste treatment device, comprising a casing 1, a primary crushing box 2 installed on the top wall of the casing 1, and two secondary crushing boxes 3 installed in the casing 1, an inverted V-shaped unloading plate 4 is fixed in the casing 1, both sides of the unloading plate 4 are provided with openings, and a movable magnetic plate 401 is provided in the opening, and crushing blocks 201 with a trapezoidal cross-section are movably provided on both sides of the primary crushing box 2, and the two crushing blocks 201 are driven by an external driving source to approach each other to squeeze the solid waste, and a unloading port 202 is provided on the bottom wall of the primary crushing box 2, and a plurality of baffle rods 203 are fixed in the unloading port 202; a baffle mechanism 5 is symmetrically arranged on the unloading plate 4, and the baffle mechanism 5 includes a first baffle plate 504, and a second baffle plate 506 is slidably connected to one side of the first baffle plate 504, and the crushing block 201 moves to drive the first baffle plate 5 04 and the second baffle plate 506 move downwardly and tilted to block the solid waste, and the first baffle plate 504 enters the opening to push the magnetic plate 401 to move; an automatic cleaning structure 7 is provided at the bottom of the unloading plate 4, and the scraper 710 of the automatic cleaning structure 7 is used to clean the metal adsorbed on the magnetic plate 401, and a collection box is provided on the top wall of the two secondary crushing boxes 3; the solid waste is first crushed by the primary crushing box 2, and the larger solid waste is crushed into smaller solid waste, and then the unloading plate 4 is used to send the solid waste into the secondary crushing box 3, and the solid waste is crushed into smaller solid waste, which is convenient for transportation and subsequent utilization, and when the solid waste after the initial crushing passes through the unloading plate 4, the metal mixed therein can be adsorbed by the magnetic plate 401, and then cooperate with the automatic cleaning structure 7 to automatically clean the adsorbed metal.

[0038] See also Figure 2 , Figure 3 , Figure 4 and Figure 5The bottom wall of the primary crushing box 2 is symmetrically provided with an installation opening 204, and a connecting rod 205 is movably arranged in the installation opening 204. One end of the connecting rod 205 is fixedly connected to the crushing block 201, and the other end is connected to a pushing ball 206. The blocking mechanism 5 also includes two fixed rods 501 fixed to the unloading plate 4, and the two fixed rods 501 are both equipped with a sleeve block 502, and the sleeve block 502 is fixedly connected to the first blocking plate 504. The fixed rod 501 is equipped with a first spring 503, and a wedge block 505 is fixed on the first blocking plate 504. The two pushing balls 206 are in contact with the two wedge blocks 505 respectively; when the two crushing blocks 201 are close to each other, the pushing balls 206 are used to push the two wedge blocks 505. The wedge block 505 is pushed to move, so that the first baffle plate 504 and the second baffle plate 506 descend along the fixed rod 501, and the second baffle plate 506 first contacts the unloading plate 4 to stop the solid waste from falling, thereby achieving intermittent unloading, reducing the working intensity of the secondary crushing box 3, and avoiding excessive solid waste between the two when the first baffle plate 504 pushes the magnetic plate 401 to move. Subsequently, the first baffle plate 504 pushes the magnetic plate 401 to move, and the scraper 710 automatically pushes down the metal adsorbed between the two. When the two crushing blocks 201 are reset, the first baffle plate 504, the second baffle plate 506 and the magnetic plate 401 are automatically reset, and the solid waste falls normally at this time.

[0039] See also Figure 5 , inclined plates 402 are fixed on the adjacent side walls of the two secondary crushing boxes 3, and spring telescopic rods 403 are installed on the inclined plates 402. A connecting plate 404 is fixed to one end of the spring telescopic rod 403 on the same side, and the connecting plate 404 is fixedly connected to the magnetic plate 401; the magnetic plate 401 is supported by the spring telescopic rod 403. Under normal circumstances, the surface of the magnetic plate 401 is flush with the surface of the blanking plate 4. After the magnetic plate 401 moves, the spring telescopic rod 403 is compressed, and the magnetic plate 401 can also be quickly reset after the pressure is lost.

[0040] See also Figure 5 , Figure 6 , Figure ,7 and Figure 8A mounting seat 6 is fixed between the adjacent side walls of the two secondary crushing boxes 3. The automatic cleaning structure 7 includes a sleeve 701 fixed on the mounting seat 6. Both side walls of the sleeve 701 are connected with an air outlet pipe 708. One end of the air outlet pipe 708 is connected with a hollow plate 709. The lower surface of the blanking plate 4 is symmetrically provided with grooves. The two hollow plates 709 are fixed in the grooves. The ends of the two hollow plates 709 that are away from each other are both provided with openings. The scraper 710 is located in the opening, and a second spring 711 is connected between the scraper 710 and the inner wall of the hollow plate 709. An air outlet hole 712 is provided on the side of the hollow plate 709 away from the blanking plate 4. A piston plate 706 is movably provided in the sleeve 701, and an air inlet pipe 707 is connected to the piston plate 706. Check valve mechanisms are installed in the air inlet pipe 707 and the air outlet pipe 708. A pressurizing mechanism is also provided above the piston plate 706 for inflating and pressurizing the hollow plate 709. The pressurizing mechanism includes a fixed plate 702 fixed to the top of the sleeve 701, and a pressurizing rod 703 is movably provided on the fixed plate 702. One end of the pressurizing rod 703 is fixedly connected to the piston plate 706. A notch is provided in the middle position of the blanking plate 4, and one end of the pressurizing rod 703 passes through the notch and is connected to an inverted V-shaped force-bearing plate 704, and the force-bearing plate 704 is connected to the fixed plate 702. A third spring 705 is connected between the plates 702; the solid waste crushed by the primary crushing box 2 will first fall on the force plate 704. Under the action of the second spring 711, the force plate 704 continuously moves up and down, and the piston plate 706 is driven to move back and forth through the pressure rod 703. When the piston plate 706 moves downward, the air is pushed into the hollow plate 709 through the air outlet pipe 708, increasing the air pressure of the hollow plate 709. When the piston plate 706 moves upward, the external air enters the sleeve 701 under the action of negative pressure. This process is repeated continuously to gradually increase the air pressure of the hollow plate 709. Due to the obstruction of the connecting plate 404, the scraper 71 0 cannot move. When the first baffle plate 504 completely enters the opening, the bottom end of the first baffle plate 504 is flush with the bottom surface of the unloading plate 4. At this time, the scraper plate 710 moves out of the hollow plate 709 under the action of air pressure, and the second spring 711 is stretched to scrape off the metal adsorbed on the magnetic plate 401. Then the gas is discharged through the air outlet 712. Under the action of the second spring 711, the scraper plate 710 automatically resets. When the crushing block 201 is reset, the first baffle plate 504 and the second baffle plate 506 are reset. Under the action of the spring telescopic rod 403, the connecting plate 404 and the magnetic plate 401 are also automatically reset, which is convenient for subsequent crushing.

[0041] See also Fig. 9The one-way valve mechanism includes a circular orifice plate 713 with a circular hole in the middle, the circular orifice plate 713 is fixed in the air inlet pipe 707 and the air outlet pipe 708, and an elastic rope 714 is connected to the circular orifice plate 713, and one end of the elastic rope 714 is connected to a sealing ball 715; the function of the one-way valve mechanism in the air inlet pipe 707 is that when the piston plate 706 descends, the air will not be discharged through the air inlet pipe 707, and the function of the one-way valve mechanism in the air outlet pipe 708 is that when the piston plate 706 rises, the gas in the hollow plate 709 will not return to the sleeve 701 through the air outlet pipe 708.

[0042] See also Figure 2 and Figure 3 The two crushing blocks 201 are arranged with crushing teeth in an array on the side walls adjacent to each other. Two crushing rollers are rotatably installed in the secondary crushing box 3, and the crushing rollers are driven by an external motor. The crushing teeth are arranged on the crushing blocks 201, which can better perform primary crushing of solid waste. The two crushing rollers rotate synchronously in opposite directions to further crush the solid waste and obtain the required small-volume solid waste. The bottom of the secondary crushing box 3 is provided with an opening, and a conveyor belt can be provided at the bottom of the casing 1. After the crushing is completed, it is directly transported to the subsequent equipment for extrusion into blocks.

[0043] The working principle of the present invention is as follows: firstly, the equipment is checked to ensure that the equipment can operate normally and idle for a period of time. After the equipment has no abnormal sound, the solid waste to be crushed is sent into the primary crushing box 2. A plurality of baffles 203 are arranged in the discharge port 202. Normal-sized solid waste can directly fall into the casing 1 through the discharge port 202. Large solid waste cannot fall. The external driving source (not shown) is started at a fixed time to drive the two crushing blocks 201 to approach each other, adjust the position of the solid waste, and crush the larger solid waste into smaller solid waste, thereby preliminarily crushing the solid waste.

[0044] The solid waste passing through the discharge port 202 falls on the force plate 704, and then falls to both sides through the discharge plate 4. Under the action of the second spring 711, the force plate 704 continuously moves up and down, and the piston plate 706 is driven to move back and forth through the pressure rod 703. When the piston plate 706 moves downward, the air is pushed into the hollow plate 709 through the air outlet pipe 708 to increase the air pressure of the hollow plate 709. When the piston plate 706 moves upward, the external air enters the sleeve 701 under the action of negative pressure. This process is repeated continuously to gradually increase the air pressure of the hollow plate 709. Due to the obstruction of the connecting plate 404, the scraper 710 cannot move. When the solid waste passes through the magnetic plate 401, the metal mixed therein is adsorbed, and the remaining solid waste falls into the secondary crushing box 3 for further crushing;

[0045] When the two crushing blocks 201 are close to each other, the pushing ball 206 is used to push the wedge block 505 to move, so that the first baffle plate 504 and the second baffle plate 506 are lowered along the fixed rod 501, and the second baffle plate 506 first contacts the unloading plate 4 to stop the solid waste from falling, thereby realizing intermittent unloading, reducing the working intensity of the secondary crushing box 3, and also avoiding excessive solid waste between the two when the first baffle plate 504 pushes the magnetic plate 401 to move. The first baffle plate 504 and the second baffle plate 506 are slidably connected, and the second baffle plate 506 stops moving after contacting the unloading plate 4, and the first baffle plate 504 can continue to move downward, and then the first baffle plate 504 pushes the magnetic plate 401 to move. After the first baffle plate 504 completely enters the opening, the bottom end of the first baffle plate 504 is flush with the bottom surface of the unloading plate 4. At this time, the scraper 710 moves out of the hollow plate 709 under the action of air pressure, and the second spring 710 moves out of the hollow plate 709 under the action of air pressure. The spring 711 is stretched to scrape off the metal adsorbed on the magnetic plate 401, and the metal falls into the collection box. Then the gas in the hollow plate 709 is discharged through the air outlet 712. Under the action of the second spring 711, the scraper 710 automatically resets. When the crushing block 201 is reset, the first baffle plate 504 and the second baffle plate 506 are reset. Under the action of the spring telescopic rod 403, the connecting plate 404 and the magnetic plate 401 are also automatically reset, which is convenient for subsequent crushing. The above process is repeated continuously, that is, intermittent unloading and regular cleaning of the magnetic plate 401 are achieved to avoid excessive adsorption of metal on the magnetic plate 401 and hindering the falling of solid waste. Finally, the processed solid waste is squeezed into blocks. It is worth mentioning that some metal may be adsorbed on the side wall of the magnetic plate 401. After the processing is completed, the operator can clean the side wall of the magnetic plate 401 while recovering the metal in the collection box.

[0046] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An energy-saving and environmentally friendly solid waste treatment device, comprising a housing (1), a primary crushing box (2) installed on the top wall of the housing (1), and two secondary crushing boxes (3) installed in the housing (1), characterized in that: An inverted V-shaped material discharge plate (4) is fixed in the casing (1), and openings are arranged on both sides of the material discharge plate (4), and movable magnetic plates (401) are arranged in the openings. Crushing blocks (201) with a trapezoidal cross section are movably arranged on both sides of the primary crushing box (2), and the two crushing blocks (201) are driven by an external driving source to approach each other to squeeze the solid waste. A material discharge opening (202) is opened on the bottom wall of the primary crushing box (2), and a plurality of blocking rods (203) are fixed in the material discharge opening (202); A material blocking mechanism (5) is symmetrically arranged on the unloading plate (4), and the material blocking mechanism (5) comprises a first material blocking plate (504), one side of which is slidably connected to a second material blocking plate (506), the crushing block (201) moves to drive the first material blocking plate (504) and the second material blocking plate (506) to move obliquely downward to block the solid waste, and the first material blocking plate (504) enters the opening to push the magnetic plate (401) to move; An automatic cleaning structure (7) is provided at the bottom of the unloading plate (4), and a scraper (710) of the automatic cleaning structure (7) is used to clean the metal adsorbed on the magnetic plate (401). Collection boxes are provided on the top walls of the two secondary crushing boxes (3).

2. The energy-saving and environmentally friendly solid waste treatment device according to claim 1 is characterized in that: The bottom wall of the primary crushing box (2) is symmetrically provided with an installation opening (204), and a connecting rod (205) is movably arranged in the installation opening (204), one end of the connecting rod (205) is fixedly connected to the crushing block (201), and the other end is connected to a pushing ball (206), and the material blocking mechanism (5) also includes two fixed rods (501) fixed on the unloading plate (4), and the two fixed rods (501) are both provided with a sleeve block (502), and the sleeve block (502) is fixedly connected to the first material blocking plate (504), and the fixed rod (501) is provided with a first spring (503), and the first material blocking plate (504) is fixed with a wedge block (505), and the two pushing balls (206) are respectively in contact with the two wedge blocks (505).

3. The energy-saving and environmentally friendly solid waste treatment device according to claim 1 is characterized in that: An inclined plate (402) is fixed on the adjacent side walls of the two secondary crushing boxes (3), a spring telescopic rod (403) is installed on the inclined plate (402), a connecting plate (404) is fixed on one end of the spring telescopic rod (403) on the same side, and the connecting plate (404) is fixedly connected to the magnetic plate (401).

4. The energy-saving and environmentally friendly solid waste treatment device according to claim 1 is characterized in that: A mounting seat (6) is fixed between the adjacent side walls of the two secondary crushing boxes (3); the automatic cleaning structure (7) comprises a sleeve (701) fixed on the mounting seat (6); both side walls of the sleeve (701) are connected with an air outlet pipe (708); one end of the air outlet pipe (708) is connected with a hollow plate (709); the lower surface of the blanking plate (4) is symmetrically provided with grooves; the two hollow plates (709) are fixed in the grooves; the ends of the two hollow plates (709) that are away from each other are provided with an opening; a scraper (710) is located in the opening; a second spring (711) is connected between the scraper (710) and the inner wall of the hollow plate (709); and an air outlet hole (712) is provided on the side of the hollow plate (709) away from the blanking plate (4); A piston plate (706) is movably arranged in the sleeve (701), and an air inlet pipe (707) is connected to the piston plate (706). Both the air inlet pipe (707) and the air outlet pipe (708) are equipped with a one-way valve mechanism. A boosting mechanism is also arranged above the piston plate (706) for inflating and pressurizing the hollow plate (709).

5. The energy-saving and environmentally friendly solid waste treatment device according to claim 4 is characterized in that: The boosting mechanism comprises a fixed plate (702) fixed on the top of the sleeve (701), a pressure rod (703) is movably arranged on the fixed plate (702), one end of the pressure rod (703) is fixedly connected to the piston plate (706), a notch is arranged in the middle position of the blanking plate (4), one end of the pressure rod (703) passes through the notch and is connected to an inverted V-shaped force plate (704), and a third spring (705) is connected between the force plate (704) and the fixed plate (702).

6. The energy-saving and environmentally friendly solid waste treatment device according to claim 4 is characterized in that: The one-way valve mechanism comprises a circular hole plate (713) with a circular hole in the middle. The circular hole plate (713) is fixed in the air inlet pipe (707) and the air outlet pipe (708). An elastic rope (714) is connected to the circular hole plate (713), and one end of the elastic rope (714) is connected to a sealing ball (715).

7. The energy-saving and environmentally friendly solid waste treatment device according to claim 1 is characterized in that: Crushing teeth are arranged in an array on the adjacent side walls of the two crushing blocks (201), and two crushing rollers are rotatably installed in the secondary crushing box (3), and the crushing rollers are driven by an external motor.

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