Municipal waste recycling treatment apparatus and recycling method thereof

Abstract

The application discloses a kind of municipal waste recycling equipment and recycling method thereof, including water bath device, air separation device, crushing device, water bath device includes water bath tank, water bath tank top is provided with feed hopper one, water bath tank bottom is connected with oil slurry separation mechanism, air separation mechanism includes classified tank body, classified tank body top is provided with feed hopper two, water bath tank top side is connected with conveying chain belt, feed hopper two is located in the directly below of the discharging end of conveying chain belt, classified tank body inside center is fixed with dispersion platform, light garbage can, dispersion platform bottom is equipped with negative pressure cylinder, negative pressure cylinder is opened with adsorption hole, negative pressure cylinder bottom extends to the inside of light garbage can, classified tank body bottom is provided with discharge pipe two, classified tank body bottom is also provided with discharge pipe one for discharging garbage in light garbage can.The application classifies and processes garbage according to specific gravity, weight difference, with the advantages of convenient recycling, good recycling effect.

Description

Technical Field

[0001] This invention relates to the field of municipal waste treatment technology, specifically to a municipal waste recycling and treatment equipment and its recycling method. Background Technology

[0002] Municipal waste generally refers to waste materials generated by urban residents in production, consumption, and daily life. It mainly includes various packaging plastic products, kitchen waste, fruit peels, and discarded items. Plastic waste can be recycled and reused, and the oil in kitchen waste can be recycled (to produce diesel fuel).

[0003] Currently, the main methods for treating municipal waste include landfill, incineration, and bioconversion. Landfill requires a significant amount of land, incineration has a certain impact on the air environment, and bioconversion has high requirements for infrastructure and a long conversion cycle. In researching the characteristics of these methods, the inventor discovered that pre-sorting the waste is crucial for subsequent treatment and recycling. Therefore, the inventor proposes a municipal waste recycling and treatment device and its recycling method. Summary of the Invention

[0004] The purpose of this invention is to provide a municipal waste recycling and processing equipment and method that classifies and processes waste according to its specific gravity and weight, has the advantage of high recycling rate, and solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a municipal waste recycling and processing equipment, including a water bath device, an air separation device, and a crushing device, wherein the water bath device includes a water bath tank, a feed hopper is provided at the top of the water bath tank, and an oil sludge separation mechanism is connected to the bottom of the water bath tank;

[0006] The air separation mechanism includes a sorting tank, a second feeding hopper at the top of the sorting tank, a conveyor belt connected to one side of the top of the water bath tank, the second feeding hopper being located directly below the material discharge end of the conveyor belt, a dispersing platform and a lightweight waste bin fixed at the center inside the sorting tank, a negative pressure cylinder installed at the bottom of the dispersing platform, an adsorption hole on the negative pressure cylinder, the bottom of the negative pressure cylinder extending into the interior of the lightweight waste bin, a second discharge pipe at the bottom of the sorting tank, and a first discharge pipe at the bottom of the sorting tank for discharging waste from the lightweight waste bin;

[0007] The crushing mechanism includes a crushing tank, a feed hopper 3 integrally provided on the top of the crushing tank, a screen plate fixed inside the water bath tank, an agitator rotatably installed inside the water bath tank above the screen plate, an auger conveyor installed on the side wall of the water bath tank between the agitator and the screen plate, the discharge end of the auger conveyor facing the feed hopper 3, and a slag discharge pipe connected to the bottom of the crushing tank.

[0008] A recycling method for municipal waste recycling and processing equipment includes the following steps.

[0009] S1: Pour the waste into the water bath tank through the feed hopper;

[0010] S2: Pour sufficient hot water into the water bath tank to melt the solid grease in the waste;

[0011] S3: The agitator rotates, which fully mixes the garbage and hot water in the water bath tank, causing medium and light-weight garbage to float and heavy-weight garbage to sink to the bottom;

[0012] S4: The conveyor belt moves in a cycle, transporting the garbage floating in the water bath tank to the second feed hopper;

[0013] S5: The garbage in the second feed hopper falls downward onto the dispersing platform and is dispersed. Then it falls downward through the discharge port. During this process, the lighter garbage is tilted and falls into the lightweight garbage bin under the negative pressure adsorption of the negative pressure cylinder, and is then discharged by the first discharge pipe. The heavier garbage falls to the bottom of the sorting tank outside the lightweight garbage bin and is then discharged by the second discharge pipe.

[0014] S6: After the suspended debris in the water bath tank is cleaned up, the wastewater in the water bath tank enters the sludge filter chamber through the drain pipe, then enters the buffer tank through the filter holes, and then enters the grease recovery tank. After being cooled by the condenser tube, the grease condenses on the surface of the wastewater, and the wastewater is discharged through the screen plate.

[0015] S7: After the sewage in the water bath tank is drained, start the screw conveyor to transport the heavy waste on the screen plate. The waste falls into the feed hopper three. The cutting parts follow the central shaft to rotate and continuously crush the waste. Finally, the waste is discharged through the slag discharge pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] This invention reduces grease buildup on waste by injecting hot water into a water bath tank, and also separates medium-, light-, and heavy-weight waste using the buoyancy of the water.

[0018] The floating garbage in the water bath tank is transported to the sorting tank by a conveyor belt. The negative pressure adsorption of the negative pressure cylinder changes the trajectory of the garbage and separates the garbage according to different weights. Lightweight plastic garbage can be recycled and reused, while heavier fruit and vegetable peel garbage has a good composting effect.

[0019] After the floating garbage in the water bath tank is removed, the sewage is discharged through the drain pipe. An oil-sludge separation mechanism is set up so that the mud and sand are intercepted in the sludge filter chamber. The sewage is discharged through the screen plate on the grease recovery tank. The solidified grease is trapped in the grease recovery tank for easy centralized recycling.

[0020] After the wastewater is discharged from the water bath tank, the heavy waste on the screen plate is transferred to the crushing tank by the screw conveyor, where the waste is crushed by the cutting parts, reducing the space occupied. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the air separation device of the present invention;

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure at point AA of the present invention.

[0025] In the diagram: 1. Water bath tank; 101. Feed hopper one; 102. Sewage pipe; 103. Screen plate; 104. Extension trough pipe; 105. Fence; 2. Classification tank; 201. Feed hopper two; 202. Discharge pipe one; 203. Discharge pipe two; 3. Crushing tank; 301. Feed hopper three; 302. Slag discharge pipe; 4. Screw conveyor; 5. Conveyor chain; 6. Sludge filter; 7. Lightweight garbage bin; 8. L-shaped support arm; 9. Central shaft; 901. Cutting component; 10. Buffer water tank; 11. Grease recovery tank; 12. Motor one; 13. Motor two; 14. Dispersion platform; 15. Negative pressure cylinder; 16. Agitator; 17. Condenser pipe; 18. Magnetic convex strip; 19. Fan; 20. Cylinder; 21. Scraper ring; 22. Discharge port. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1 to 4The present invention provides a technical solution: a municipal waste recycling and processing equipment, including a water bath device, an air separation device, and a crushing device. The water bath device includes a water bath tank 1, and a feed hopper 101 is provided on the top of the water bath tank 1. Municipal waste and hot water enter the water bath tank 1 through the feed hopper 101. An oil sludge separation mechanism is connected to the bottom of the water bath tank 1.

[0028] like Figure 3 As shown, the air separation mechanism includes a sorting tank 2, with a second feeding hopper 201 at the top. A conveyor belt 5 is connected to one side of the top of the water bath tank 1. The second feeding hopper 201 is located directly below the discharge end of the conveyor belt 5. The waste in the water bath tank 1 is transported and fed into the second feeding hopper 201 via the conveyor belt 5. A dispersing platform 14 and a lightweight waste bin 7 are fixed at the center inside the sorting tank 2. The dispersing platform 14 is located directly above the lightweight waste bin 7. A negative pressure cylinder 15 is installed at the bottom of the dispersing platform 14. The negative pressure cylinder 15 has adsorption holes. The negative pressure environment inside the negative pressure cylinder 15 is provided by a blower 19. The blower 19 is installed in the dispersing platform 14. The air inlet of the blower 19 extends into the inside of the negative pressure cylinder 15, and the air outlet of the blower 19 extends to the outside of the sorting tank 2 (e.g., Figure 1 and Figure 3 As shown, the bottom of the negative pressure cylinder 15 extends into the interior of the lightweight trash can 7. The bottom of the sorting tank 2 is equipped with a discharge pipe 203, through which the trash inside the sorting tank 2 is discharged. The bottom of the sorting tank 2 is also equipped with a discharge pipe 202 for discharging the trash from the lightweight trash can 7. Most of the trash falling into the lightweight trash can 7 is plastic products, which can be recycled and reused. Most of the trash falling into the sorting tank 2 is fruit peels and other heavy trash that can float on the water surface, which can be landfilled and composted.

[0029] like Figure 2 As shown, the crushing mechanism includes a crushing tank 3, with a feed hopper 301 integrally installed on the top of the crushing tank 3. A screen plate 103 is fixed inside the water bath tank 1. Sewage and silt in the water bath tank 1 can be drained through the screen holes on the screen plate 103. An agitator 16 is rotatably installed inside the water bath tank 1 above the screen plate 103. A motor 12 for driving the agitator 16 to rotate is fixedly installed on the top of the water bath tank 1. An auger conveyor 4 is installed on the side wall of the water bath tank 1 between the agitator 16 and the screen plate 103. The discharge end of the auger conveyor 4 faces the feed hopper 301. During operation, after the sewage in the water bath tank 1 is discharged, the auger conveyor 4 is started to transport the heavy waste on the screen plate 103. Then the waste is put into the feed hopper 301. A slag discharge pipe 302 is connected to the bottom of the crushing tank 3.

[0030] like Figure 1 , Figure 2 and Figure 4As shown, the oil sludge separation mechanism includes a sludge filter chamber 6 and a buffer tank 10. The top of the buffer tank 10 has an installation port for the sludge filter chamber 6 to be inserted. An grease recovery tank 11 is connected to one side of the buffer tank 10. A mesh plate is installed at the discharge end of the grease recovery tank 11, allowing wastewater to drain through the mesh. A condenser pipe 17 is laid at the bottom of the inner wall of the grease recovery tank 11 to lower the temperature of the wastewater, causing the grease in the wastewater to condense and float to the surface. After the wastewater is discharged, the grease remains in the grease recovery tank 11 for centralized recycling.

[0031] The condenser tube 17 is equipped with an air inlet pipe and an exhaust pipe. When in use, cold air enters the condenser tube 17 through the air inlet pipe, and then undergoes heat exchange in the grease recovery tank 11, which lowers the temperature of the wastewater. Finally, the hot air is discharged through the exhaust pipe.

[0032] like Figure 3 As shown, the dispersing platform 14 is located directly below the feed hopper 201. A discharge port 22 is formed between the outer wall of the dispersing platform 14 and the inner wall of the sorting tank 2. The top of the dispersing platform 14 is a cone. The garbage falls into the middle of the top of the dispersing platform 14, disperses and falls downwards, and is then discharged through the discharge port 22.

[0033] like Figure 3 As shown, a scraper ring 21 is movably sleeved on the outer wall of the negative pressure cylinder 15. A cylinder 20 is installed on the dispersing platform 14 to drive the scraper ring 21 to move up and down along the negative pressure cylinder 15. By moving the cylinder 20 up and down, the light garbage adsorbed on the negative pressure cylinder 15 is scraped off, so that the negative pressure cylinder 15 continuously attracts the falling light garbage, so that the light garbage falls into the light garbage bin 7.

[0034] like Figure 2 and Figure 3 As shown, an extension trough pipe 104 is fixed on one side of the top of the water bath tank 1. The conveyor chain 5 is installed inside the extension trough pipe 104. The feed end of the conveyor chain 5 extends into the interior of the water bath tank 1. A fence 105 is fixed inside the water bath tank 1 below the conveyor chain 5 to block floating objects, so that the garbage floating on the water surface in the water bath tank 1 is concentrated in the area outside the fence 105, so that the conveyor chain 5 can more thoroughly remove the floating garbage in the water bath tank 1.

[0035] like Figure 1 and Figure 2 As shown, a drain pipe 102 is provided at the bottom of the water bath tank 1. A control valve is installed on the drain pipe 102. The discharge end of the drain pipe 102 is threadedly connected to the sludge filter 6. The above structure makes the sludge filter 6 easy to disassemble and clean. Filter holes are opened on the side wall of the sludge filter 6. Sewage is discharged through the filter holes, and impurities such as mud and sand in the sewage are trapped in the sludge filter 6.

[0036] like Figure 1 and Figure 2 As shown, a central shaft 9 is rotatably installed inside the crushing tank 3. A cutting component 901 is fixedly installed on the central shaft 9 inside the crushing tank 3. Magnetic protrusions 18 are evenly installed on the inner wall of the feed hopper 301. The top of the central shaft 9 extends to the outside of the feed hopper 301 and is rotatably connected to an L-shaped support arm 8. The bottom of the L-shaped support arm 8 is fixedly connected to the outer wall of the crushing tank 3. A motor 2 13 for driving the central shaft 9 to rotate is fixedly installed on the top of the L-shaped support arm 8. When working, the motor 2 13 is started to drive the central shaft 9 to rotate, so that the cutting component 901 rotates at high speed, thereby crushing the waste in the crushing tank 3.

[0037] A recycling method for municipal waste recycling and processing equipment includes the following steps:

[0038] S1: Pour the waste into the water bath tank 1 through the feed hopper 101;

[0039] S2: Pour sufficient hot water into the water bath tank 1 to melt the solid grease in the garbage;

[0040] S3: The agitator 16 rotates, which fully mixes the garbage and hot water in the water bath tank 1, so that the medium and light garbage floats and the heavy garbage sinks to the bottom (falls onto the sieve plate 103);

[0041] S4: The conveyor belt 5 moves in a cycle, transporting the floating garbage in the water bath tank 1 to the feed hopper 201;

[0042] S5: The garbage in the feed hopper 201 falls downward onto the dispersing platform 14 and is dispersed. Then it falls downward through the discharge port 22. During this process, the lighter garbage is tilted into the lightweight garbage bin 7 under the negative pressure adsorption of the negative pressure cylinder 15 and is then discharged by the discharge pipe 202. The scraper ring 21 moves up and down to scrape off the lightweight garbage adsorbed on the negative pressure cylinder 15, reducing blockage and ensuring suction. The heavier garbage falls to the bottom of the sorting tank 2 outside the lightweight garbage bin 7 and is then discharged by the discharge pipe 203.

[0043] S6: After the suspended debris in the water bath tank 1 is cleaned up, the control valve on the drain pipe 102 is opened to allow the sewage to enter the sludge filter chamber 6, and then enter the buffer water tank 10 through the filter holes, and then enter the grease recovery tank 11. The sewage is cooled by the condenser pipe 17, the grease condenses on its surface, and the sewage is discharged through the screen plate.

[0044] S7: After the sewage in the water bath tank 1 is discharged, the screw conveyor 4 is started to transport the heavy waste on the screen plate 103. The waste falls into the feed hopper 301 and is adsorbed by the magnetic convex strip 18. The waste continues to fall into the crushing tank 3. The cutting piece 901 rotates with the central shaft 9 to continuously crush the waste. Finally, the crushed and heavier waste is discharged through the slag discharge pipe 302.

[0045] Crushing heavy waste reduces the space it occupies and facilitates later processing.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for municipal waste recycling, characterized in that: Includes the following steps: S1: Pour the waste into the water bath tank (1) through the feed hopper (101); S2: Pour sufficient hot water into the water bath tank (1) to melt the solid grease in the garbage; S3: The agitator (16) rotates to fully mix the garbage and hot water in the water bath tank (1), so that the medium and light garbage floats and the heavy garbage sinks to the bottom onto the sieve plate (103); S4: The conveyor belt (5) moves in a cycle to transport the garbage floating in the water bath tank (1) to the feed hopper (201); S5: The garbage in the second feed hopper (201) falls down onto the dispersing platform (14) and is dispersed. Then it falls down through the discharge port (22). During this process, the lighter garbage is drawn into the lightweight garbage bin (7) under the negative pressure adsorption of the negative pressure cylinder (15). Then it is discharged by the discharge pipe (202). The lightweight garbage adsorbed by the scraper ring (21) can be scraped off by moving up and down. The heavier garbage falls to the bottom of the sorting tank (2) outside the lightweight garbage bin (7) and is then discharged by the discharge pipe (203). S6: After the suspended garbage in the water bath tank (1) is cleaned up, open the control valve on the drain pipe (102). The sewage in the water bath tank (1) enters the sludge filter chamber (6) through the drain pipe (102), then enters the buffer water tank (10) through the filter hole, and then enters the grease recovery tank (11). After being cooled by the condenser pipe (17), the grease condenses on the surface of the sewage, and the sewage is discharged through the screen plate. S7: After the sewage in the water bath tank (1) is drained, the screw conveyor (4) is started to transport the heavy waste on the screen plate (103). The waste falls into the feed hopper (301) and is adsorbed by the magnetic convex strip (18). The waste continues to fall into the crushing tank (3). The cutting part (901) follows the central shaft (9) to rotate and continuously crush the waste. Finally, the crushed and heavier waste is discharged through the slag discharge pipe (302). The municipal waste recycling method includes a water bath device, an air separation device, and a crushing device. The water bath device includes a water bath tank (1), a feed hopper (101) is provided on the top of the water bath tank (1), and an oil sludge separation mechanism is connected to the bottom of the water bath tank (1). The air separation device includes a sorting tank (2), a second feeding hopper (201) is provided on the top of the sorting tank (2), a conveyor belt (5) is connected to one side of the top of the water bath tank (1), the second feeding hopper (201) is located directly below the discharge end of the conveyor belt (5), a dispersing platform (14) and a lightweight garbage bin (7) are fixed in the center inside the sorting tank (2), a negative pressure cylinder (15) is installed at the bottom of the dispersing platform (14), an adsorption hole is opened on the negative pressure cylinder (15), the bottom of the negative pressure cylinder (15) extends into the interior of the lightweight garbage bin (7), a second discharge pipe (203) is provided at the bottom of the sorting tank (2), and a first discharge pipe (202) is also provided at the bottom of the sorting tank (2) to discharge the garbage in the lightweight garbage bin (7). The crushing device includes a crushing tank (3), a feeding hopper (301) integrally provided on the top of the crushing tank (3), a screen plate (103) fixed inside the water bath tank (1), a stirring component (16) rotatably installed inside the water bath tank (1) above the screen plate (103), an auger conveyor (4) installed on the side wall of the water bath tank (1) between the bottom of the stirring component (16) and the top of the screen plate (103), the discharge end of the auger conveyor (4) facing the feeding hopper (301), and a slag discharge pipe (302) connected to the bottom of the crushing tank (3). The oil sludge separation mechanism includes a sludge filter chamber (6) and a buffer water tank (10). The top of the buffer water tank (10) is provided with an installation port for the sludge filter chamber (6) to be inserted. A grease recovery tank (11) is connected to one side of the buffer water tank (10). A mesh plate is provided at the discharge end of the grease recovery tank (11). A condenser pipe (17) is laid at the bottom inside the grease recovery tank (11). A discharge port (22) is formed between the outer wall of the dispersing platform (14) and the inner wall of the sorting tank (2). The outer wall of the negative pressure cylinder (15) is movably fitted with a scraper ring (21), and the dispersion table (14) is equipped with a cylinder (20) for driving the scraper ring (21) to move up and down along the negative pressure cylinder (15). The bottom of the water bath tank (1) is provided with a drain pipe (102), and a control valve is installed on the drain pipe (102). Filter holes are opened on the side wall of the sludge filter chamber (6). The crushing tank (3) has a central shaft (9) rotatably installed inside. A cutting component (901) is fixedly installed on the central shaft (9) inside the crushing tank (3). Magnetic protrusions (18) are evenly arranged on the inner wall of the feed hopper (301).

2. The municipal waste recycling method according to claim 1, characterized in that: The dispersing platform (14) is located directly below the second feed hopper (201).

3. The municipal waste recycling method according to claim 1, characterized in that: An extension trough (104) is fixed on one side of the top of the water bath tank (1), and the conveyor belt (5) is installed inside the extension trough (104). The feed end of the conveyor belt (5) extends into the interior of the water bath tank (1).

4. A municipal waste recycling method according to claim 3, characterized in that: The water bath tank (1) below the conveyor belt (5) is fixed with a fence (105) to block floating objects.

5. A municipal waste recycling method according to claim 1, characterized in that: The discharge end of the sewage pipe (102) is threadedly connected to the sludge filter cartridge (6).

6. A municipal waste recycling method according to claim 1, characterized in that: The top of the central shaft (9) extends to the outside of the feed hopper three (301) and is rotatably connected to an L-shaped support arm (8), the bottom of which is fixedly connected to the outer wall of the crushing tank (3).

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