Kitchen garbage full-decomposition device without secondary pollution

Abstract

The invention belongs to the field of full-decomposition equipment, and particularly relates to a kitchen garbage full-decomposition device without secondary pollution, which comprises a decomposition box, a waste liquid box is mounted on one side of the decomposition box, a plurality of support rods are fixedly mounted at the top of the waste liquid box, a same pretreatment box is fixedly mounted at the tops of the support rods, and a feeding pipe is mounted on one side of the pretreatment box. One end of the feed pipe is communicated with the decomposition box, a liquid guide pipe communicated with the waste liquid box is mounted at the bottom of the pretreatment box, and a feed port is formed in the top of the pretreatment box; a filter screen is fixedly installed in the pretreatment box, and a partition plate is installed on the inner wall of the top of the pretreatment box and located on the right side of the feeding port. The device is reasonable in design, garbage pretreatment solid-liquid separation can be achieved, waste liquid is squeezed out, and garbage is crushed and then conveyed to a decomposition box. Through cooperation of multiple components, garbage is fully stirred, biological agents are intermittently and quantitatively added, uniform mixing is achieved, full decomposition without secondary pollution is achieved, and high efficiency and environmental protection are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of fully decomposing equipment, and particularly relates to a kitchen waste full decomposition device without secondary pollution. Background Art

[0002] In today's society, with the acceleration of the urbanization process and the steady improvement of the living standards of residents, the urban population continues to grow, and people's eating habits and lifestyles have also changed significantly. These factors together have led to a rapid increase in the generation of kitchen waste. According to relevant statistical data, in just the past decade, the daily average generation of kitchen waste in some first-tier cities in China has increased several times, and this growth trend will continue in the future.

[0003] Traditional methods for treating kitchen waste, such as landfilling and incineration, have many drawbacks. Landfilling requires a large amount of valuable land resources. As the urban scale continues to expand, land resources become increasingly scarce, and it is more and more difficult to select landfill sites. At the same time, a large amount of leachate is generated during the landfill process of kitchen waste, which is rich in high-concentration organic matter, nitrogen, phosphorus and other pollutants as well as heavy metal ions. If the leachate is not properly treated and seeps into the ground, it will cause serious pollution to the soil and groundwater, damage the soil structure, affect soil fertility, and then endanger the growth of crops, and even endanger human health through the food chain. In addition, the greenhouse gas emissions such as methane generated by landfilling are large, and the impact on global warming cannot be ignored.

[0004] Some existing kitchen waste treatment devices often cannot achieve the full decomposition of garbage during the treatment process, and the remaining undigested substances still need subsequent treatment, increasing the treatment cost and difficulty. In addition, for the treatment of waste liquid in kitchen waste, many devices lack effective separation and treatment means, resulting in secondary pollution of the environment by the pollutants in the waste liquid. Therefore, we propose a kitchen waste full decomposition device without secondary pollution to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a kitchen waste full decomposition device without secondary pollution.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A kitchen waste full decomposition device without secondary pollution, including a decomposition tank. One side of the decomposition tank is installed with a waste liquid tank. The top of the waste liquid tank is fixedly installed with a plurality of support rods. The top of the support rods is fixedly installed with the same pretreatment tank. One side of the pretreatment tank is installed with a feed pipe, and one end of the feed pipe is communicated with the decomposition tank. The bottom of the pretreatment tank is installed with a liquid guide pipe communicated with the waste liquid tank. The top of the pretreatment tank is installed with a feed port; A filter screen is fixedly installed in the pretreatment tank. A partition plate is installed on the top inner wall of the pretreatment tank. The partition plate is located on the right side of the feed port. A rotating shaft is rotatably installed on one side inner wall of the pretreatment tank. One end of the rotating shaft extends into the feed pipe. A spiral pushing plate is fixedly installed on the rotating shaft. A rotating shaft is rotatably installed on one side inner wall of the pretreatment tank. One end of the rotating shaft penetrates through the partition plate. A plurality of crushing knives are equidistantly installed on the rotating shaft;

[0008] The top of the decomposition tank is fixedly installed with a control box. The top of the control box is fixedly installed with a driving motor. The output shaft of the driving motor is fixedly installed with a driving shaft. The driving shaft extends into the decomposition tank and is fixedly installed with a driving plate. Two rotating holes are opened on the driving plate and a stirring shaft is rotatably installed in the rotating holes. A plurality of stirring rods are installed on the stirring shaft, and the plurality of stirring rods are vertically staggered; A biological medicine tank is installed on the top of the decomposition tank. Communication holes are opened on the bottom of the biological medicine tank and the top inner wall of the decomposition tank, and the two communication holes are communicated. A rotating disk is rotatably installed in the biological medicine tank. A quantitative hole is opened on the top of the rotating disk. The quantitative hole is communicated with the communication hole. A baffle plate is fixedly installed on one side inner wall of the biological medicine tank. The baffle plate is located directly above the communication hole. A material guiding plate is installed on the top inner wall of the decomposition tank. The material guiding plate is located on the left side of the communication hole.

[0009] Preferably, a housing is fixedly installed on one side of the pretreatment tank. A rotating motor is fixedly installed on one side of the housing. The output shaft of the rotating motor is fixedly connected with the rotating shaft.

[0010] Preferably, a first belt pulley is fixedly installed on both the rotating shaft and the rotating shaft. The same belt is sleeved on the two first belt pulleys.

[0011] Preferably, a plurality of connecting seats are fixedly installed on the top inner wall of the pretreatment tank. A rectangular groove is opened at the bottom of the connecting seat. A rectangular seat is slidably installed in the rectangular groove. The bottoms of the plurality of rectangular seats are fixed with the same arc-shaped pressing plate. A return spring is fixedly installed on the top of the rectangular seat. The top end of the return spring is fixedly installed on the top inner wall of the rectangular groove.

[0012] Preferably, an extrusion seat is fixedly installed on the top of the arc-shaped pressing plate. An eccentric wheel is fixedly installed on the right end of the rotating shaft, and the eccentric wheel is adapted to the extrusion seat.

[0013] Preferably, an annular rotating plate is rotatably installed on the inner wall of the top of the decomposition box, an internal rack is fixedly installed on the inner wall of the annular rotating plate, a rotating gear is fixedly installed at the top end of the stirring shaft, and the rotating gear meshes with the internal rack.

[0014] Preferably, a transmission shaft is rotatably installed on the inner wall of the top of the decomposition box, the top end of the transmission shaft extends into the control box, a synchronization mechanism is provided between the transmission shaft and the driving shaft, a driving gear is fixedly installed at the bottom end of the transmission shaft, an external rack is fixedly installed on the outside of the annular rotating plate, and the driving gear meshes with the external rack.

[0015] Preferably, the synchronization mechanism includes a second pulley and a second belt. Second pulleys are fixedly installed on both the transmission shaft and the driving shaft, and the same second belt is installed on the two second pulleys for transmission.

[0016] Preferably, a connecting shaft is fixedly installed at the bottom of the rotating disc, a driven bevel gear is fixedly installed at the bottom end of the connecting shaft, and the driven bevel gear meshes with the external rack.

[0017] Preferably, an annular sliding groove is formed on the inner wall of the top of the decomposition box, an annular sliding seat is fixedly installed on the top of the annular rotating plate, and the annular sliding seat is rotatably connected to the annular sliding groove.

[0018] The beneficial effects of the present invention:

[0019] 1. When kitchen waste is added to the pretreatment box through the feed port, the rotating motor can drive the crushing knife to rotate, and the rotation of the crushing knife can break the kitchen waste. When the broken kitchen waste falls onto the filter screen, the filter screen can be used to separate the solid and liquid of the kitchen waste, and the waste liquid can enter the waste liquid box through the liquid guide pipe for treatment;

[0020] 2. Through the cooperation of the first pulley, the first belt, the rotating shaft, the rotating shaft and the spiral pushing plate, the rotation of the spiral pushing plate can convey the kitchen waste to the decomposition box. When the rotating shaft rotates, the rotating shaft can drive the eccentric wheel to rotate. Through the cooperation of the eccentric wheel, the return spring and the arc pressing plate, the rotation of the eccentric wheel can make the arc pressing plate move up and down reciprocally, which can squeeze the kitchen waste during the conveying process and can fully press out the waste liquid;

[0021] 3. When the kitchen waste enters the decomposition box, by starting the driving motor, the driving motor can drive the driving shaft and the driving plate to rotate, and the driving plate can drive the stirring rod and the stirring rod to rotate. Through the rotation of the stirring rod, the kitchen waste can be stirred;

[0022] 4. Through the cooperation of pulley two and belt two, the drive shaft can drive the transmission shaft to rotate, the transmission shaft can drive the drive gear to rotate, the drive gear can drive the annular rotating plate to rotate through the external rack, the annular rotating plate can drive the rotating gear to rotate through the internal gear, and the rotating gear can drive the stirring shaft and the stirring rod to rotate. It can realize the rotation and self-rotation of the stirring rod at the same time, and can fully stir the kitchen waste;

[0023] 5. When the annular rotating plate and the external rack rotate, the external rack can drive the external gear to rotate, the external gear can drive the driven gear to rotate, the driven gear can drive the connecting shaft and the rotating disk to rotate, and the rotating disk can drive the quantitative biological agent to rotate through the quantitative holes. When the biological agent rotates above the communication hole, the biological agent can be added to the decomposition tank. By adding the biological agent quantitatively at intervals and through the self-rotation and rotation of the stirring rod, it can realize the full mixing and stirring of the biological agent and the kitchen waste, and avoid the situation of insufficient decomposition of the kitchen waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 FIG. is a three-dimensional structural schematic diagram of a kitchen waste full decomposition device without secondary pollution proposed by the present invention;

[0025] Figure 2 FIG. is a sectional three-dimensional structural schematic diagram of a kitchen waste full decomposition device without secondary pollution proposed by the present invention;

[0026] Figure 3 is Figure 2 the upward view three-dimensional structural schematic diagram;

[0027] Figure 4 FIG. is a partial three-dimensional structural schematic diagram of a kitchen waste full decomposition device without secondary pollution proposed by the present invention;

[0028] Figure 5 is Figure 4 the partial sectional three-dimensional structural schematic diagram;

[0029] Figure 6 FIG. is a schematic diagram of the structure of part A of a kitchen waste full decomposition device without secondary pollution proposed by the present invention;

[0030] Figure 7 FIG. is a partial three-dimensional structural schematic diagram of a kitchen waste full decomposition device without secondary pollution proposed by the present invention;

[0031] Figure 8 is Figure 7 the partial three-dimensional structural schematic diagram in;

[0032] Figure 9Schematic diagram of part B of a kitchen waste full decomposition device without secondary pollution proposed by the present invention;

[0033] Figure 10 Schematic diagram of part C of a kitchen waste full decomposition device without secondary pollution proposed by the present invention;

[0034] Figure 11 Schematic three - dimensional structure diagram of the filter screen of a kitchen waste full decomposition device without secondary pollution proposed by the present invention.

[0035] In the figure: 101, decomposition tank; 102, waste liquid tank; 103, support rod; 104, pretreatment tank; 105, liquid guide pipe; 106, feed pipe; 107, feed inlet; 201, filter screen; 202, partition board; 203, rotating shaft; 204, spiral feeding plate; 205, rotating shaft; 206, crushing knife; 301, housing; 302, rotating motor; 303, pulley one; 304, belt one; 401, connecting seat; 402, rectangular groove; 403, rectangular seat; 404, arc pressing plate; 405, return spring; 406, extrusion seat; 407, eccentric wheel; 501, control box; 502, driving motor; 503, driving shaft; 504, driving plate; 505, rotating hole; 506, stirring shaft; 507, stirring rod; 601, annular rotating plate; 602, internal rack; 603, rotating gear; 604, external rack; 605, transmission shaft; 606, driving gear; 607, pulley two; 608, belt two; 701, biological agent tank; 702, rotating disk; 703, quantitative hole; 704, baffle; 705, communication hole; 706, guide plate; 801, connecting shaft; 802, driven gear. Detailed implementation manners

[0036] The technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0037] When a component is referred to as being "disposed on" another component, it can be directly on the other component or there can also be an intermediate component. "Disposed" represents a way of existence, which can be connection methods such as connection, installation, fixed connection, active connection, etc. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs. The terms used in the specification of this invention are only for the purpose of describing specific embodiments and are not intended to limit the invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0039] Referring to Figure 1-11 , a kitchen waste full decomposition device without secondary pollution, including a decomposition tank 101. A waste liquid tank 102 is installed on one side of the decomposition tank 101. A plurality of support rods 103 are fixedly installed on the top of the waste liquid tank 102. The same pretreatment tank 104 is fixedly installed on the top of the support rods 103. A feed pipe 106 is installed on one side of the pretreatment tank 104. One end of the feed pipe 106 is communicated with the decomposition tank 101. A liquid guide pipe communicated with the waste liquid tank 102 is installed at the bottom of the pretreatment tank 104. A feed port 107 is installed on the top of the pretreatment tank 104; A filter screen 201 is fixedly installed in the pretreatment tank 104. A partition plate 202 is installed on the inner wall of the top of the pretreatment tank 104. The partition plate 202 is located on the right side of the feed port 107. A rotating shaft 203 is rotatably installed on the inner wall of one side of the pretreatment tank 104. One end of the rotating shaft 203 extends into the feed pipe 106. A spiral pushing plate 204 is fixedly installed on the rotating shaft 203. A rotating shaft 205 is rotatably installed on the inner wall of one side of the pretreatment tank 104. One end of the rotating shaft 205 penetrates through the partition plate 202. A plurality of crushing knives 206 are equidistantly installed on the rotating shaft 205;

[0040] In this embodiment, a control box 501 is fixedly installed on the top of the decomposition tank 101. A driving motor 502 is fixedly installed on the top of the control box 501. A driving shaft 503 is fixedly installed on the output shaft of the driving motor 502. The driving shaft 503 extends into the decomposition tank 101 and is fixedly installed with a driving plate. Two rotating holes 505 are opened on the driving plate. A stirring shaft 506 is rotatably installed in the rotating holes 505. A plurality of stirring rods 507 are installed on the stirring shaft 506, and the plurality of stirring rods 507 are vertically staggered; A biological agent box 701 is installed on the top of the decomposition tank 101. Communication holes 705 are opened on the bottom of the biological agent box 701 and the inner wall of the top of the decomposition tank 101, and the two communication holes 705 are communicated. A rotating disk 702 is rotatably installed in the biological agent box 701. A quantitative hole 703 is opened on the top of the rotating disk 702. The quantitative hole 703 is communicated with the communication hole 705. A baffle 704 is fixedly installed on the inner wall of one side of the biological agent box 701. The baffle 704 is located directly above the communication hole 705. A material guiding plate 706 is installed on the inner wall of the top of the decomposition tank 101. The material guiding plate 706 is located on the left side of the communication hole 705.

[0041] In this embodiment, a housing 301 is fixedly installed on one side of the pretreatment tank 104. A rotary motor 302 is fixedly installed on one side of the housing 301. The output shaft of the rotary motor 302 is fixedly connected to the rotary shaft 205. Pulley one 303 is fixedly installed on both the rotary shaft 205 and the rotating shaft 203. The same belt is sleeved on the two pulleys one 303.

[0042] In this embodiment, a plurality of connecting seats 401 are fixedly installed on the top inner wall of the pretreatment tank 104. A rectangular groove 402 is opened at the bottom of the connecting seat 401. A rectangular seat 403 is slidably installed in the rectangular groove 402. The same arc-shaped pressing plate 404 is fixed to the bottoms of the plurality of rectangular seats 403. A return spring 405 is fixedly installed on the top of the rectangular seat 403. The top end of the return spring 405 is fixedly installed on the top inner wall of the rectangular groove 402. A pressing seat 406 is fixedly installed on the top of the arc-shaped pressing plate 404. An eccentric wheel 407 is fixedly installed at the right end of the rotary shaft 205, and the eccentric wheel 407 is adapted to the pressing seat 406.

[0043] Preferably, an annular rotating plate 601 is rotatably installed on the top inner wall of the decomposition tank 101. An internal rack 602 is fixedly installed on the inner wall of the annular rotating plate 601. A rotating gear 603 is fixedly installed at the top end of the stirring shaft 506, and the rotating gear 603 meshes with the internal rack 602.

[0044] In this embodiment, a transmission shaft 605 is rotatably installed on the top inner wall of the decomposition tank 101. The top end of the transmission shaft 605 extends into the control box 501, and a synchronization mechanism is provided between the transmission shaft 605 and the drive shaft 503. A drive gear 606 is fixedly installed at the bottom end of the transmission shaft 605. An external rack 604 is fixedly installed on the outside of the annular rotating plate 601, and the drive gear 606 meshes with the external rack 604. The synchronization mechanism includes pulley two 607 and belt two 608. Pulley two 607 is fixedly installed on both the transmission shaft 605 and the drive shaft 503, and the same belt two 608 is installed on the two pulleys two 607. A connecting shaft 801 is fixedly installed at the bottom of the rotating disk 702. A driven bevel gear is fixedly installed at the bottom end of the connecting shaft 801, and the driven bevel gear meshes with the external rack 604.

[0045] In this embodiment, an annular sliding groove is opened on the top inner wall of the decomposition tank 101. An annular sliding seat is fixedly installed on the top of the annular rotating plate 601, and the annular sliding seat is rotatably connected to the annular sliding groove.

[0046] Working principle of the present invention: When kitchen waste is added to the pretreatment tank 104 through the feed inlet 107, by starting the rotary motor 302, the rotary motor 302 can drive the rotating shaft 203 to rotate, and the rotating shaft 203 can drive the crushing knife 206 to rotate. By the rotation of the crushing knife 206, the purpose of crushing the kitchen waste can be achieved. When the broken kitchen waste falls onto the filter screen 201, the solid-liquid separation of the kitchen waste can be realized by setting the filter screen 201. The waste liquid can enter the waste liquid tank 102 through the liquid guide pipe 105 for treatment. Under the cooperation of the first pulley 303 and the first belt 304, the rotating shaft 205 can drive the rotating shaft 203 to rotate, and the rotating shaft 203 can drive the spiral feeding plate 204 to rotate. The spiral feeding plate 204 can convey the kitchen waste to the decomposition tank 101. When the rotating shaft 205 rotates, the rotating shaft 205 can drive the eccentric wheel 407 to rotate. The rotation of the eccentric wheel 407 can drive the arc-shaped pressing plate 404 to be vertically pressed and moved through the pressing seat 406. Under the action of the rectangular seat 403 and the rectangular groove 402, the arc-shaped pressing plate 404 can be stably moved in the vertical direction. At the same time, the arc-shaped pressing plate 404 can be pulled back by the return spring 405. When the eccentric wheel 407 rotates, the arc-shaped pressing plate 404 can move up and down reciprocally, which can achieve the purpose of pressing the kitchen waste during the conveying process and squeezing out the waste liquid sufficiently;

[0047] After the kitchen waste enters the decomposition tank 101, by starting the driving motor 502, the driving motor 502 can drive the driving shaft 503 and the driving plate 504 to rotate, and the driving plate 504 can drive the stirring rods 507 and 507 to rotate. By the rotation of the stirring rods 507, the purpose of stirring the kitchen waste can be achieved. Under the cooperation of the second pulley 607 and the second belt 608, the driving shaft 503 can drive the transmission shaft 605 to rotate, and the transmission shaft 605 can drive the driving gear 606 to rotate. The driving gear 606 drives the annular rotating plate 601 to rotate through the external rack 604. The annular rotating plate 601 can drive the rotating gear 603 to rotate self - rotatively through the internal gear. The rotating gear 603 can drive the stirring shaft 506 and the stirring rods 507 to rotate self - rotatively, which can achieve the purpose of the stirring rods 507 rotating while rotating self - rotatively and stirring the kitchen waste sufficiently;

[0048] When the annular rotating plate 601 and the external rack 604 rotate, the external rack 604 can drive the external gear to rotate, the external gear can drive the driven gear 802 to rotate, the driven gear 802 can drive the connecting shaft 801 and the rotating disk 702 to rotate, and the rotating disk 702 can drive the quantitative biological agent to rotate through the quantitative holes 703. When the biological agent rotates above the communication hole 705, the biological agent can be added into the decomposition tank 101. By adding the biological agent quantitatively at intervals, through the self-rotation and rotation of the stirring rod 507, the biological agent and the kitchen waste can be fully mixed and stirred, avoiding the situation of insufficient decomposition of the kitchen waste.

[0049] The above has introduced in detail a kitchen waste full decomposition device without secondary pollution provided by the present invention. Specific embodiments are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A device for fully decomposing kitchen waste without secondary pollution, characterized in that: It comprises a decomposition box (101), a waste liquid box (102) is installed on one side of the decomposition box (101), a plurality of support rods (103) are fixedly installed on the top of the waste liquid box (102), a same pre-treatment box (104) is fixedly installed on the top of the support rods (103), a feed pipe (106) is installed on one side of the pre-treatment box (104), one end of the feed pipe (106) is connected to the decomposition box (101), a liquid guide pipe (105) connected to the waste liquid box (102) is installed at the bottom of the pre-treatment box (104), and a feed port (107) is installed on the top of the pre-treatment box (104); A filter screen (201) is fixedly installed in the pretreatment box (104); a partition (202) is installed on the top inner wall of the pretreatment box (104); the partition (202) is located on the right side of the feed port (107); a rotating shaft (203) is rotatably installed on the inner wall of one side of the pretreatment box (104); one end of the rotating shaft (203) extends into the feed pipe (106); a spiral push plate (204) is fixedly installed on the rotating shaft (203); a rotating shaft (205) is rotatably installed on the inner wall of one side of the pretreatment box (104); one end of the rotating shaft (205) passes through the partition (202); and a plurality of crushing knives (206) are installed on the rotating shaft (205) at equal intervals; A control box (501) is fixedly mounted on the top of the decomposition box (101), a driving motor (502) is fixedly mounted on the top of the control box (501), a driving shaft (503) is fixedly mounted on the output shaft of the driving motor (502), the driving shaft (503) extends into the decomposition box (101) and is fixedly mounted with a driving plate (504), the driving plate (504) is provided with two rotating holes (505) in which a stirring shaft (506) is rotatably mounted, a plurality of stirring rods (507) are mounted on the stirring shaft (506), and the plurality of stirring rods (507) are staggered and vertically arranged; A biological agent box (701) is installed on the top of the decomposition box (101), and a connecting hole (705) is provided on the bottom of the biological agent box (701) and the inner wall of the top of the decomposition box (101), and the two connecting holes (705) are connected. A rotating disk (702) is rotatably installed in the biological agent box (701), and a quantitative hole (703) is provided on the top of the rotating disk (702), and the quantitative hole (703) is connected to the connecting hole (705). A baffle (704) is fixedly installed on the inner wall of one side of the biological agent box (701), and the baffle (704) is located directly above the connecting hole (705). A material guide plate (706) is installed on the inner wall of the top of the decomposition box (101), and the material guide plate (706) is located on the left side of the connecting hole (705).

2. A device for fully decomposing kitchen waste without secondary pollution according to claim 1, characterized in that: A housing (301) is fixedly mounted on one side of the pretreatment box (104), a rotating motor (302) is fixedly mounted on one side of the housing (301), and an output shaft of the rotating motor (302) is fixedly connected to a rotating shaft (205).

3. A device for fully decomposing kitchen waste without secondary pollution according to claim 2, characterized in that: The rotating shaft (205) and the rotary shaft (203) are both fixedly mounted with pulleys (303), and the transmission sleeves on the two pulleys (303) are provided with the same belt.

4. The device for fully decomposing kitchen waste without secondary pollution according to claim 1, characterized in that: A plurality of connecting seats (401) are fixedly mounted on the top inner wall of the pretreatment box (104); a rectangular groove (402) is provided at the bottom of the connecting seat (401); a rectangular seat (403) is slidably mounted in the rectangular groove (402); a same arc-shaped pressing plate (404) is fixedly mounted at the bottom of the plurality of rectangular seats (403); a return spring (405) is fixedly mounted on the top of the rectangular seat (403); and the top end of the return spring (405) is fixedly mounted on the top inner wall of the rectangular groove (402).

5. The device for fully decomposing kitchen waste without secondary pollution according to claim 4, characterized in that: An extrusion seat (406) is fixedly installed on the top of the arc-shaped pressing plate (404), and an eccentric wheel (407) is fixedly installed on the right end of the rotating shaft (205), and the eccentric wheel (407) is adapted to the extrusion seat (406).

6. The device for fully decomposing kitchen waste without secondary pollution according to claim 1, characterized in that: An annular rotating plate (601) is rotatably mounted on the inner wall of the top of the decomposition box (101), an inner rack (602) is fixedly mounted on the inner wall of the annular rotating plate (601), a rotating gear (603) is fixedly mounted on the top of the stirring shaft (506), and the rotating gear (603) is meshed with the inner rack (602).

7. The device for fully decomposing kitchen waste without secondary pollution according to claim 1, characterized in that: A transmission shaft (605) is rotatably mounted on the top inner wall of the decomposition box (101), the top end of the transmission shaft (605) extends into the control box (501), and a synchronization mechanism is provided between the transmission shaft (605) and the drive shaft (503), a driving gear (606) is fixedly mounted on the bottom end of the transmission shaft (605), an outer rack (604) is fixedly mounted on the outer side of the annular rotating plate (601), and the driving gear (606) is meshed with the outer rack (604).

8. The device for fully decomposing kitchen waste without secondary pollution according to claim 7, characterized in that: The synchronous mechanism comprises a second pulley (607) and a second belt (608); the second pulley (607) is fixedly mounted on the transmission shaft (605) and the drive shaft (503); and the same second belt (608) is transmission-mounted on the two second pulleys (607).

9. The device for fully decomposing kitchen waste without secondary pollution according to claim 1, characterized in that: A connecting shaft (801) is fixedly mounted on the bottom of the rotating disk (702), and a driven bevel gear is fixedly mounted on the bottom end of the connecting shaft (801), and the driven bevel gear is meshed with the external rack (604).

10. The device for fully decomposing kitchen waste without secondary pollution according to claim 1, characterized in that: An annular slide groove is provided on the top inner wall of the decomposition box (101), an annular slide seat is fixedly installed on the top of the annular rotating plate (601), and the annular slide seat is rotatably connected to the annular slide groove.

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