Small watershed sewage discharge treatment device

Abstract

The embodiment of the utility model provides a small watershed sewage discharge treatment device, and relates to the technical field of sewage treatment. The small watershed sewage discharge treatment device comprises a movable frame, the top of the movable frame is fixedly connected with a sewage purification pool, and the top of the sewage purification pool is fixedly connected with a feeding hopper. Liquid in the sewage flows into a sewage purification tank below from the small holes, large suspended solids and solid garbage are intercepted on the grid conveying belt, after the servo motor is started, the driving rod is driven to rotate through the belt, the driving rod drives the grid conveying belt to move, the suspended solids on the grid conveying belt are gradually conveyed to the tail end, and the suspended solids are discharged from the tail end. Centralized treatment is carried out through a special collecting device, sewage and suspended solids can be effectively separated, and the treatment efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a device for treating wastewater discharge in small watersheds. Background Technology

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, medical care, and catering, and is increasingly entering the daily lives of ordinary people. However, in some rural areas, domestic sewage is discharged directly or indirectly into rivers and canals without treatment, leading to the deterioration of water quality. In order to solve this problem, many environmentally friendly wastewater discharge devices have appeared on the market.

[0003] In the prior art (Chinese invention patent application CN218811070U, entitled "A Small Watershed Sewage Discharge Treatment Device"), a water pump, an inlet pipe, a filter screen, and an outlet pipe are installed on the conveying and filtering device. With these components working together, the water pump draws and transports domestic sewage from the sewage tank through the inlet pipe to the outlet pipe. Since larger debris is filtered out by the filter screen when the sewage enters the sewage tank, a filter screen is fixedly connected to the outer surface of the inlet pipe to isolate unfiltered impurities. This prevents the inlet pipe from becoming clogged with foreign objects, thus ensuring the smooth operation of the next sewage treatment process. In implementing this technical solution, the inventors discovered at least the following problems in the prior art:

[0004] Existing devices typically use fixed or rotating screens, which can intercept larger particles, but are inconvenient to clean and prone to clogging. As mud, silt, and humus accumulate in wastewater, they form dirt. When bacteria, algae, and other microorganisms and their secretions form biological slime, the filtration device becomes severely clogged and difficult to clean, resulting in a significant decrease in the efficiency of separating impurities. Utility Model Content

[0005] The purpose of this invention is to provide a small watershed sewage discharge treatment device that can avoid the problem of sludge causing serious blockage of the filter device and making it difficult to clean.

[0006] This utility model provides a small watershed sewage discharge treatment device, including a mobile frame, a sewage purification tank fixedly connected to the top of the mobile frame, a feed funnel fixedly connected to the top of the sewage purification tank, a fixing plate fixedly connected to the outer wall of the sewage purification tank, and a sewage discharge valve connected to the side wall of the sewage purification tank. It also includes:

[0007] A servo motor is fixedly connected to the top of the fixed plate. A belt is fitted onto the output end of the servo motor. A drive rod is driven through the inner wall of the belt. A connecting frame is rotatably connected to the outer wall of the drive rod. The side wall of the connecting frame is fixedly connected to the outer surface of the sewage purification tank. A grid conveyor belt is fitted onto the outer wall of the drive rod.

[0008] Preferably, the inner wall of the wastewater purification tank is fixedly connected to a guide rail, the inner wall of the guide rail is slidably connected to a convex slider, the side wall of the convex slider is fixedly connected to a purification box, and the bottom of the purification box is connected to a membrane bioreactor.

[0009] Preferably, a connecting pipe is fixedly connected to the top of the purification tank, and an extension hose is fixedly connected to the end of the connecting pipe. One end of the extension hose penetrates the inner wall of the sewage purification tank and extends to the outside.

[0010] Preferably, a water pump is fixedly connected to the end of the extension hose away from the connecting pipe, the top of the water pump is fixedly connected to the bottom of the fixing plate, and a drain pipe is fixedly connected to the drain end of the water pump.

[0011] Preferably, an eccentric disc is fixedly connected to the end of the drive rod away from the belt, an eccentric rod is fixedly connected to the side wall of the eccentric disc, a reciprocating plate is provided on the outer wall of the eccentric rod, and a reciprocating groove is provided on the side wall of the reciprocating plate.

[0012] Preferably, the inner wall of the reciprocating groove is slidably connected to the outer wall of the eccentric rod, and a connecting plate is fixedly connected to the bottom of the reciprocating plate, the bottom of the connecting plate being fixedly connected to the top of the purification box.

[0013] Preferably, a connecting rod is fixedly connected to the bottom of the purification box, an aeration box is fixedly connected to the bottom end of the connecting rod, and an aeration pipe is connected to the top of the aeration box.

[0014] Preferably, a squeezing rod is fixedly connected to the side wall of the purification tank. The squeezing rod penetrates the inner wall of the sewage purification tank and extends to the outer side. A piston is fixedly connected to the end of the squeezing rod away from the purification tank. An aeration cylinder is slidably connected to the outer wall of the piston. The outer wall of the aeration cylinder is fixedly connected to the side wall of the sewage purification tank.

[0015] Preferably, an air inlet pipe is connected to the outer wall of the aeration cylinder, an air inlet check valve is fixedly connected to the outer wall of the air inlet pipe, and an exhaust pipe is fixedly connected to the outer wall of the aeration cylinder.

[0016] Preferably, an exhaust one-way valve is fixedly connected to the outer wall of the exhaust pipe. The exhaust one-way valve penetrates the outer wall of the sewage purification tank and extends to the inner side. The bottom end of the exhaust one-way valve penetrates the bottom of the aeration box and extends to the inner side.

[0017] The beneficial effects of this application are:

[0018] 1. This small watershed sewage discharge treatment device first feeds the sewage into the screen conveyor belt from the feed funnel. The liquid in the sewage flows into the sewage purification tank below through small holes. Suspended solids and solid waste are trapped on the screen conveyor belt. After the servo motor is started, it drives the drive rod to rotate through the belt. The drive rod drives the screen conveyor belt to move. The suspended solids on the screen conveyor belt are gradually transported to the end and centrally treated through a special collection device. This can effectively separate sewage from suspended solids and improve treatment efficiency.

[0019] 2. In this small watershed wastewater discharge treatment device, when wastewater enters the wastewater purification tank, the water pump starts and draws the wastewater through an extension hose. The wastewater is filtered through a membrane bioreactor, where dissolved organic matter, ammonia nitrogen, phosphorus, and other pollutants are removed through biodegradation and membrane separation technology. When the drive rod rotates, it drives the eccentric disk and eccentric rod to move. One end of the eccentric rod is fixed on the eccentric disk, and the other end is inserted into the reciprocating groove. When the eccentric disk rotates, the eccentric rod slides along the reciprocating groove, causing the reciprocating plate to reciprocate. The movement of the reciprocating plate drives the purification tank and the membrane bioreactor to reciprocate synchronously. When the purification tank moves, it causes the membrane bioreactor to come into contact with the wastewater over a large area. At the same time, the movement of the membrane bioreactor reduces the deposition of pollutants on the membrane surface.

[0020] 3. In this small watershed wastewater discharge treatment device, the reciprocating movement of the purification tank drives the squeezing rod to move synchronously. The squeezing rod pushes the piston to slide inside the aeration cylinder. When the piston slides forward, it compresses the gas inside the aeration cylinder. When the piston squeezes the gas, the air inlet check valve closes to prevent gas backflow. The compressed gas is discharged into the aeration box through the exhaust pipe. After entering the aeration box, the compressed gas is released into the wastewater in the form of tiny bubbles through the aeration pipe. By filling the wastewater with air, not only can the oxygen required by the microorganisms in the membrane bioreactor be provided, but the flushing effect of the bubbles can also prevent pollutants from accumulating on the surface of the membrane bioreactor, thereby reducing membrane fouling and improving treatment efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an embodiment of the present utility model;

[0023] Figure 2This is a three-dimensional sectional view of the internal structure of the sewage purification tank according to an embodiment of the present utility model;

[0024] Figure 3 This is a three-dimensional schematic diagram of the grid conveyor belt structure according to an embodiment of the present utility model;

[0025] Figure 4 This is a three-dimensional schematic diagram of the membrane bioreactor structure according to an embodiment of the present invention;

[0026] Figure 5 This is an embodiment of the present utility model. Figure 4 Enlarged 3D view of the structure at point A;

[0027] Figure 6 This is a three-dimensional schematic diagram of the aeration box structure according to an embodiment of the present utility model;

[0028] Figure 7 This is a three-dimensional schematic diagram of the aeration pipe structure according to an embodiment of the present utility model;

[0029] Figure 8 This is an embodiment of the present utility model. Figure 7 Enlarged 3D view of the structure at point B.

[0030] Icons: 101. Mobile frame; 102. Wastewater purification tank; 103. Feed funnel; 104. Fixed plate; 105. Sewage discharge valve; 201. Servo motor; 202. Belt; 203. Drive rod; 204. Connecting frame; 205. Bar conveyor belt; 301. Guide rail; 302. Convex slider; 303. Purification box; 304. Membrane bioreactor; 305. Connecting pipe; 306. Extension hose 307. Water pump; 308. Drain pipe; 401. Eccentric disc; 402. Eccentric rod; 403. Reciprocating plate; 404. Reciprocating groove; 405. Connecting plate; 501. Connecting rod; 502. Aeration box; 503. Aeration pipe; 504. Extrusion rod; 505. Piston; 506. Aeration cylinder; 507. Air inlet pipe; 508. Air inlet check valve; 509. Exhaust pipe; 510. Exhaust check valve. Detailed Implementation

[0031] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] Please refer to Figures 1 to 8This utility model embodiment provides a small watershed sewage discharge treatment device, including a mobile frame 101, a sewage purification tank 102 fixedly connected to the top of the mobile frame 101, a feed funnel 103 fixedly connected to the top of the sewage purification tank 102, a fixing plate 104 fixedly connected to the outer wall of the sewage purification tank 102, and a sewage discharge valve 105 connected to the side wall of the sewage purification tank 102. This arrangement is for discharging the dirt in the sewage purification tank 102 by opening the sewage discharge valve 105. It also includes:

[0033] A servo motor 201 is fixedly connected to the top of the fixed plate 104. A belt 202 is sleeved on the output end of the servo motor 201. A drive rod 203 is driven through the inner wall of the belt 202. This arrangement is so that after the servo motor 201 is started, the drive rod 203 is driven to rotate through the belt 202. A connecting frame 204 is rotatably connected to the outer wall of the drive rod 203. The side wall of the connecting frame 204 is fixedly connected to the outer surface of the sewage purification tank 102. A grid conveyor belt 205 is sleeved on the outer wall of the drive rod 203 so that the liquid in the sewage can flow into the sewage purification tank 102 below through the small holes of the grid conveyor belt 205.

[0034] A guide rail 301 is fixedly connected to the inner wall of the wastewater purification tank 102. A convex slider 302 is slidably connected to the inner wall of the guide rail 301. A purification tank 303 is fixedly connected to the side wall of the convex slider 302. A membrane bioreactor 304 is connected to the bottom of the purification tank 303. The membrane bioreactor 304 removes pollutants such as dissolved organic matter, ammonia nitrogen, and phosphorus from the wastewater through biodegradation and membrane separation technology. A connecting pipe 305 is fixedly connected to the top of the purification tank 303, and an extension hose is fixedly connected to the end of the connecting pipe 305. 306. One end of the extension hose 306 penetrates the inner wall of the sewage purification tank 102 and extends to the outside. The end of the extension hose 306 away from the connecting pipe 305 is fixedly connected to a water pump 307. The top of the water pump 307 is fixedly connected to the bottom of the fixing plate 104. This arrangement is so that when the water pump 307 is started, sewage is drawn through the extension hose 306. The sewage is filtered through the membrane bioreactor 304. The drain end of the water pump 307 is fixedly connected to a drain pipe 308. This arrangement is for discharging the filtered sewage.

[0035] An eccentric disc 401 is fixedly connected to the end of the drive rod 203 away from the belt 202. An eccentric rod 402 is fixedly connected to the side wall of the eccentric disc 401. A reciprocating plate 403 is provided on the outer wall of the eccentric rod 402. A reciprocating groove 404 is opened on the side wall of the reciprocating plate 403. The inner wall of the reciprocating groove 404 is slidably connected to the outer wall of the eccentric rod 402. A connecting plate 405 is fixedly connected to the bottom of the reciprocating plate 403. The bottom of the connecting plate 405 is connected to the purification box. The top of 303 is fixedly connected. This arrangement is such that when the drive rod 203 rotates, it drives the eccentric disk 401 and the eccentric rod 402 to move. One end of the eccentric rod 402 is fixed on the eccentric disk 401, and the other end is inserted into the reciprocating groove 404. When the eccentric disk 401 rotates, the eccentric rod 402 slides along the reciprocating groove 404, causing the reciprocating plate 403 to reciprocate. The movement of the reciprocating plate 403 drives the purification box 303 to reciprocate synchronously.

[0036] A connecting rod 501 is fixedly connected to the bottom of the purification tank 303. An aeration tank 502 is fixedly connected to the bottom end of the connecting rod 501. An aeration pipe 503 is connected to the top of the aeration tank 502. The aeration pipe 503 releases microbubbles into the sewage. A squeezing rod 504 is fixedly connected to the side wall of the purification tank 303. The squeezing rod 504 penetrates the inner wall of the sewage purification tank 102 and extends to the outside. A piston 505 is fixedly connected to the end of the squeezing rod 504 away from the purification tank 303. An aeration cylinder 506 is slidably connected to the outer wall of the piston 505. The outer wall of the aeration cylinder 506 is fixedly connected to the side wall of the sewage purification tank 102. This arrangement is such that when the purification tank 303 moves back and forth, it drives the squeezing rod 504 to move synchronously. The squeezing rod 504 pushes the piston 505 to slide inside the aeration cylinder 506.

[0037] An air inlet pipe 507 is connected to the outer wall of the aeration cylinder 506. An air inlet check valve 508 is fixedly connected to the outer wall of the air inlet pipe 507. An exhaust pipe 509 is fixedly connected to the outer wall of the aeration cylinder 506. An exhaust check valve 510 is fixedly connected to the outer wall of the exhaust pipe 509. The exhaust check valve 510 penetrates the outer wall of the sewage purification tank 102 and extends to the inside. The bottom end of the exhaust check valve 510 penetrates the bottom of the aeration box 502 and extends to the inside.

[0038] In summary, the working principle of a small watershed sewage discharge treatment device according to this utility model embodiment is as follows: the sewage to be treated first flows into the bar screen conveyor belt 205 from the feed funnel 103. The liquid in the sewage flows into the sewage purification tank 102 below through small holes, while large suspended solids and solid waste are trapped on the bar screen conveyor belt 205. After the servo motor 201 is started, it drives the drive rod 203 to rotate through the belt 202. The drive rod 203 drives the bar screen conveyor belt 205 to move. The suspended solids on the bar screen conveyor belt 205 are gradually transported to the end and centrally treated through a special collection device, which can effectively separate sewage and suspended solids and improve treatment efficiency.

[0039] When wastewater enters the wastewater purification tank 102, the water pump 307 starts and draws out the wastewater through the extension hose 306. The wastewater is filtered through the membrane bioreactor 304. Through biodegradation and membrane separation technology, pollutants such as dissolved organic matter, ammonia nitrogen, and phosphorus in the wastewater are removed. When the drive rod 203 rotates, it drives the eccentric disk 401 and the eccentric rod 402 to move. One end of the eccentric rod 402 is fixed on the eccentric disk 401, and the other end is inserted into the reciprocating groove 404. When the eccentric disk 401 rotates, the eccentric rod 402 slides along the reciprocating groove 404, causing the reciprocating plate 403 to reciprocate. The movement of the reciprocating plate 403 drives the purification tank 303 and the membrane bioreactor 304 to reciprocate synchronously. When the purification tank 303 moves, it causes the membrane bioreactor 304 to come into contact with the wastewater over a large area. At the same time, the movement of the membrane bioreactor 304 reduces the deposition of pollutants on the membrane surface.

[0040] When the purification tank 303 reciprocates, it drives the extrusion rod 504 to move synchronously. The extrusion rod 504 pushes the piston 505 to slide inside the aeration cylinder 506. When the piston 505 slides forward, it compresses the gas inside the aeration cylinder 506. When the piston 505 extrudes the gas, the inlet check valve 508 closes to prevent gas backflow. The compressed gas is discharged into the aeration box 502 through the exhaust pipe 509. After entering the aeration box 502, the compressed gas is released into the wastewater in the form of tiny bubbles through the aeration pipe 503. By introducing air into the wastewater, not only can the oxygen required by the microorganisms in the membrane bioreactor 304 be provided, but the flushing effect of the bubbles can also prevent pollutants from accumulating on the surface of the membrane bioreactor 304, thereby reducing membrane fouling and improving treatment efficiency.

[0041] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A small watershed sewage discharge treatment device, comprising a moving frame (101), a sewage purification tank (102) is fixedly connected to the top of the moving frame (101), a feeding hopper (103) is fixedly connected to the top of the sewage purification tank (102), a fixed plate (104) is fixedly connected to the outer wall of the sewage purification tank (102), and a sewage discharge valve (105) is arranged in communication with the side wall of the sewage purification tank (102), characterized in that, Also include: The top of the fixed plate (104) is fixedly connected with a servo motor (201), the output end of the servo motor (201) is provided with a belt (202), the inner wall of the belt (202) is drivingly connected with a drive rod (203), the outer wall of the drive rod (203) is rotatably connected with a connecting frame (204), the side wall of the connecting frame (204) is fixedly connected with the outer surface of the sewage purification tank (102), the outer wall of the drive rod (203) is provided with a grid conveyor belt (205).

2. The small watershed sewage discharge treatment device according to claim 1, characterized in that: The inner wall of the sewage purification tank (102) is fixedly connected with a guide rail (301), the inner wall of the guide rail (301) is slidingly connected with a convex sliding block (302), the side wall of the convex sliding block (302) is fixedly connected with a purification box (303), the bottom of the purification box (303) is communicatively provided with a membrane bioreactor (304).

3. The small watershed sewage discharge treatment device according to claim 2, characterized in that: The top of the purification box (303) is fixedly connected with a connecting pipe (305), the end of the connecting pipe (305) is fixedly connected with an extension hose (306), one end of the extension hose (306) penetrates through the inner wall of the sewage purification tank (102) and extends to the outside.

4. The small watershed sewage discharge treatment device according to claim 3, characterized in that: The end of the extension hose (306) away from the connecting pipe (305) is fixedly connected with a water pump (307), the top of the water pump (307) is fixedly connected with the bottom of the fixed plate (104), the drainage end of the water pump (307) is fixedly connected with a drainage pipe (308).

5. The small watershed sewage discharge treatment device according to claim 4, characterized in that: The end of the drive rod (203) away from the belt (202) is fixedly connected with an eccentric disc (401), the side wall of the eccentric disc (401) is fixedly connected with an eccentric rod (402), the outer wall of the eccentric rod (402) is provided with a reciprocating plate (403), the side wall of the reciprocating plate (403) is provided with a reciprocating groove (404).

6. The small watershed sewage discharge treatment device according to claim 5, characterized in that: The inner wall of the reciprocating groove (404) is slidingly connected with the outer wall of the eccentric rod (402), the bottom of the reciprocating plate (403) is fixedly connected with a connecting plate (405), the bottom of the connecting plate (405) is fixedly connected with the top of the purification box (303).

7. The small watershed sewage discharge treatment device according to claim 6, characterized in that: The bottom of the purification box (303) is fixedly connected with a connecting rod (501), the bottom end of the connecting rod (501) is fixedly connected with an aeration tank (502), the top of the aeration tank (502) is communicatively provided with an aeration pipe (503).

8. The small watershed sewage discharge treatment device according to claim 7, characterized in that: The side wall of the purification box (303) is fixedly connected with a pressing rod (504), the pressing rod (504) penetrates through the inner wall of the sewage purification tank (102) and extends to the outside, the end of the pressing rod (504) away from the purification box (303) is fixedly connected with a piston (505), the outer wall of the piston (505) is slidingly connected with an aeration cylinder (506), the outer wall of the aeration cylinder (506) is fixedly connected with the side wall of the sewage purification tank (102).

9. The small watershed sewage discharge treatment device according to claim 8, characterized in that: The outer wall of the aeration cylinder (506) is communicatively provided with an air inlet pipe (507), the outer wall of the air inlet pipe (507) is fixedly connected with an air inlet check valve (508), the outer wall of the aeration cylinder (506) is fixedly connected with an air outlet pipe (509).

10. The small watershed sewage discharge remediation device of claim 9, wherein: The outer wall of the exhaust pipe (509) is fixedly connected with an exhaust one-way valve (510), the exhaust one-way valve (510) penetrates the outer wall of the sewage purification tank (102) and extends to the inner side, and the bottom end of the exhaust one-way valve (510) penetrates the bottom of the aeration tank (502) and extends to the inner side.

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