Rural domestic sewage purification tank

Abstract

The utility model relates to the technical field of purification tanks, in particular to a rural domestic sewage purification tank which comprises a tank body, a partition plate is arranged in the middle of the interior of the tank body, the part, making contact with the tank body, of the surface of the partition plate is fixed through welding, and the interior of the tank body is divided into a degradation cavity and a sedimentation cavity through the partition plate; a sewage connector and a waste discharge connector are respectively arranged at the upper end and the lower end of the inner wall of the settling cavity in a penetrating manner, and the joint positions of the sewage connector and the waste discharge connector with the box body are respectively fixed by welding. The interior of the box body can be divided into the settling cavity and the degradation cavity by matching the partition plate in the box body, the requirement for purification treatment of rural daily sewage can be met, the filter screen structure is arranged in the settling cavity, particle impurities can be directly filtered through the filter screen after the sewage enters the settling cavity, and compared with static settling, the effect is better. Continuous and efficient primary impurity filtration can be realized, and filtered sewage overflowing out of the filter screen can be fed into the degradation cavity through the sewage pump.

Description

Technical Field

[0001] The utility model relates to the technical field of purification tanks, in particular to a rural domestic sewage purification tank. Background Art

[0002] A rural domestic sewage purification tank is a facility for treating rural domestic sewage. It is usually installed in farmers' homes or village collective locations for on-site treatment of daily wastewater. This kind of purification tank is generally small and suitable for treating the domestic sewage of a single family or a small community.

[0003] The working principle of a rural domestic sewage purification tank mainly includes physical sedimentation, biodegradation, and anaerobic digestion processes. Specifically, domestic sewage first enters the pre-sedimentation tank, where larger suspended solids and sediment will settle down.

[0004] Then the sewage enters the main reaction tank. By adding microbial agents, it promotes the decomposition of organic matter by bacteria and converts the pollutants in the sewage into harmless substances. Finally, the treated water is discharged into the discharge tank and can be used for farmland irrigation, etc.

[0005] The advantages of a rural domestic sewage purification tank include:

[0006] Simple structure: The structure of the purification tank is relatively simple, making it easy to build and maintain;

[0007] Small footprint: Suitable for the situation of limited land resources in rural areas;

[0008] Low cost: The construction and operation costs are relatively low, suitable for the economic conditions in rural areas;

[0009] Strong environmental adaptability: It can adapt to different terrains and climate conditions and has little impact on the surrounding environment;

[0010] Resource utilization: The treated sewage can be recycled for farmland irrigation to achieve the recycling of water resources.

[0011] At present, most of the sewage purification tanks used in rural areas have a relatively simple structure, which includes two parts: physical sedimentation and biodegradation. However, the physical sedimentation part inside uses the form of static sedimentation, and during continuous water treatment and filtration, the efficiency is low. At the same time, for the oxygen aeration pipe structure used for providing biodegradation, the aeration holes are directly in contact with the sewage. If there are adherent substances in the sewage, it is very easy for them to enter the aeration pipe through the aeration holes, causing blockage or corrosion damage inside the pipe. Summary of the Utility Model

[0012] The purpose of the utility model is to propose a rural domestic sewage purification tank to solve the above-mentioned disadvantages existing in the prior art.

[0013] To achieve the above object, the utility model adopts the following technical solutions:

[0014] Design a rural domestic sewage purification tank, including a box body. A partition board is arranged at the middle position inside the box body, and the parts of the surface of the partition board in contact with the box body are all fixed by welding. The partition board divides the inside of the box body into a degradation chamber and a sedimentation chamber. A sewage interface and a waste discharge interface are respectively arranged through the upper end and the lower end of the inner wall of the sedimentation chamber, and the connection positions of the sewage interface and the waste discharge interface with the box body are respectively fixed by welding. A first electromagnetic valve is arranged on the surface of the sewage interface, and the valve core of the first electromagnetic valve is embedded inside the sewage interface. A second electromagnetic valve is arranged on the surface of the waste discharge interface, and the valve core of the second electromagnetic valve is embedded inside the waste discharge interface. A ramp plate is arranged at the lower end inside the sedimentation chamber, and the ramp plate is fixedly assembled with the bottom of the box body by screws, and one side of the ramp plate is closely attached to the surface of the partition board. The bottom of the ramp of the ramp plate corresponds to the position of the waste discharge interface. A cover plate is arranged to cover the upper end of the box body, and the edge of the cover plate is fixedly assembled with the end face of the box body by screws.

[0015] Specifically, support blocks with equal specifications and symmetrically distributed are arranged on the inner wall of the box body and the surface of the partition board. The two support blocks are located inside the sedimentation chamber. A plate frame is arranged at the upper end of the support block, and the outer peripheral walls of the plate frame are respectively slidably and closely attached to the inner wall surface of the box body and the surface of the partition board. A filter screen is fixedly assembled on the inner peripheral wall of the plate frame.

[0016] Specifically, positioning rings are respectively arranged on both sides of the upper end of the plate frame. The outer wall surface of the positioning ring is welded and fixed to the surface of the plate frame. A positioning pin is slidably sleeved inside the positioning ring.

[0017] Specifically, a spring is wound around the surface of the positioning pin, and both ends of the spring are fixedly assembled with the surface of the positioning pin and the end face of the positioning ring respectively. Positioning grooves are respectively opened on the inner wall surface of the box body and one side of the partition board, and the positioning pin is slidably inserted and butted with the positioning groove at the corresponding position.

[0018] Specifically, a sewage pump is fixedly assembled on the upper end of the cover plate through a bracket. The inlet end flange of the sewage pump is installed with a water inlet pipe. The water inlet pipe penetrates through the surface of the cover plate, and the connection position of the water inlet pipe and the cover plate is filled and sealed with resin glue. The end of the water inlet pipe is located inside the sedimentation chamber and is arranged above the filter screen. The outlet end flange of the sewage pump is installed with a water outlet pipe. The water outlet pipe penetrates through the surface of the cover plate, and the connection position of the water outlet pipe and the cover plate is filled and sealed with resin glue. The end of the water outlet pipe is located inside the degradation chamber.

[0019] Specifically, an air diffuser pipe is penetratively arranged on the surface of the cover plate. The connection position between the air diffuser pipe and the cover plate is fixed by welding. A third solenoid valve is installed on the upper flange of the air diffuser pipe. The lower end of the air diffuser pipe is provided with air holes penetrating through its interior. A collar is sleeved on the surface of the air diffuser pipe. A wire mesh cover is fixedly welded to the end face of the collar. The wire mesh cover is slidably sleeved on the lower end of the air diffuser pipe, and the wire mesh cover covers the port position of the air holes. Internal threads are provided on the inner wall surface of the collar, and external threads are provided on the outer wall surface of the air diffuser pipe. The external threads and the internal threads are threadedly docked with each other.

[0020] Specifically, a water outlet interface is arranged at the lower end of one side of the degradation chamber. The connection position between the water outlet interface and the box body is fixed by welding. A fourth solenoid valve is arranged on the surface of the water outlet interface, and the valve core of the fourth solenoid valve is embedded in the interior of the water outlet interface.

[0021] Specifically, an exhaust interface is arranged at the upper end of one side of the degradation chamber. The connection position between the exhaust interface and the box body is fixed by welding. A fifth solenoid valve is arranged on the surface of the exhaust interface, and the valve core of the fifth solenoid valve is embedded in the interior of the exhaust interface.

[0022] The design scheme proposed by the present utility model has the following beneficial effects during application:

[0023] 1. Inside the box body, with the cooperation of the partition plate, the interior of the box body can be divided into a sedimentation chamber and a degradation chamber, which can meet the purification treatment of rural domestic sewage. By arranging a filter screen structure in the sedimentation chamber, after the sewage enters the sedimentation chamber, particulate impurities can be directly filtered through the filter screen. Compared with static sedimentation, continuous and efficient primary impurity filtration can be achieved, and the filtered sewage overflowing from the filter screen can be sent into the degradation chamber by a sewage pump.

[0024] 2. Inside the degradation chamber, aerobic degradation is carried out first. Through the cooperation of the air diffuser pipe and the air holes, and with the help of an external air pump, air containing oxygen can be sent into the degradation chamber for aerobic degradation. Then, the fourth solenoid valve is closed, and anaerobic degradation is carried out, thereby realizing the biodegradation of pollutants in the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0026] Figure 2 is an axially inclined top view schematic diagram of the overall structure of the present utility model;

[0027] Figure 3 is a schematic diagram of the internal structure of the present utility model;

[0028] Figure 4 is an enlarged schematic diagram of part a of the present utility model;

[0029] Figure 5This is an enlarged schematic view of part b of the present utility model.

[0030] In the figure: 10, box body; 11, partition board; 12, degradation chamber; 13, sedimentation chamber; 14, sewage interface; 15, first solenoid valve; 16, waste discharge interface; 17, second solenoid valve; 18, ramp plate; 19, cover plate; 20, support block; 21, plate frame; 22, filter screen; 23, positioning ring; 24, positioning pin; 25, spring; 26, positioning groove; 30, sewage pump; 31, water inlet pipe; 32, water outlet pipe; 40, aeration pipe; 41, third solenoid valve; 42, aeration hole; 43, collar; 44, mesh cover; 45, external thread; 46, internal thread; 50, water outlet interface; 51, fourth solenoid valve; 52, exhaust interface; 53, fifth solenoid valve. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0032] Refer to Figures 1-5 , a rural domestic sewage purification tank, including a box body 10. A partition board 11 is arranged at the middle position inside the box body 10, and the parts of the surface of the partition board 11 in contact with the box body 10 are all fixed by welding. The partition board 11 divides the inside of the box body 10 into a degradation chamber 12 and a sedimentation chamber 13. A sewage interface 14 and a waste discharge interface 16 are respectively penetrated through the upper end and the lower end of the inner wall of the sedimentation chamber 13, and the connection positions of the sewage interface 14 and the waste discharge interface 16 with the box body 10 are respectively fixed by welding. A first solenoid valve 15 is arranged on the surface of the sewage interface 14, and the valve core of the first solenoid valve 15 is embedded inside the sewage interface 14. A second solenoid valve 17 is arranged on the surface of the waste discharge interface 16, and the valve core of the second solenoid valve 17 is embedded inside the waste discharge interface 16. A ramp plate 18 is arranged at the lower end inside the sedimentation chamber 13, and the ramp plate 18 is fixedly assembled with the bottom of the box body 10 by screws, and one side of the ramp plate 18 is closely attached to the surface of the partition board 11. The bottom of the ramp of the ramp plate 18 corresponds to the position of the waste discharge interface 16. A cover plate 19 is covered on the upper end of the box body 10, and the edge of the cover plate 19 is fixedly assembled with the end face of the box body 10 by screws.

[0033] Further, it should be noted that support blocks 20 with the same specifications and symmetrically distributed are arranged on the inner wall of the box body 10 and the surface of the partition board 11. Two support blocks 20 are located inside the sedimentation chamber 13. A plate frame 21 is arranged at the upper end of the support block 20. The outer peripheral walls of the plate frame 21 are respectively slidably and closely attached to the inner wall surface of the box body 10 and the surface of the partition board 11. A filter screen 22 is fixedly assembled on the inner peripheral wall of the plate frame 21, and the filter screen 22 can filter out particulate impurities in the sewage.

[0034] It should be further explained that positioning rings 23 are respectively provided on both sides of the upper end of the plate frame 21. The outer wall surface of the positioning ring 23 is welded and fixed to the surface of the plate frame 21. The internal sliding sleeve of the positioning ring 23 is connected with a positioning pin 24. The positioning pin 24 cooperates with the positioning groove 26 to facilitate the assembly and disassembly of the filter screen 22.

[0035] It should be further explained that a spring 25 is wound around the surface of the positioning pin 24, and the two ends of the spring 25 are fixedly assembled with the surface of the positioning pin 24 and the end face of the positioning ring 23 respectively. The inner wall surface of the box body 10 and one side of the partition plate 11 are provided with positioning grooves 26. The positioning pin 24 is slidably inserted into and docked with the positioning grooves 26 at the corresponding position. The spring 25 can ensure the stability of the extension and resetting of the positioning pin 24.

[0036] It should be further explained that a sewage pump 30 is fixedly assembled on the upper end of the cover plate 19 through a bracket, and an inlet pipe 31 is installed on the water inlet end flange of the sewage pump 30. The inlet pipe 31 passes through the surface of the cover plate 19, and the connection position between the inlet pipe 31 and the cover plate 19 is sealed and filled with resin glue. The end of the inlet pipe 31 is located in the sedimentation chamber 13 and is arranged above the filter screen 22. An outlet pipe 32 is installed on the water outlet end flange of the sewage pump 30. The outlet pipe 32 passes through the surface of the cover plate 19, and the connection position between the outlet pipe 32 and the cover plate 19 is sealed and filled with resin glue, and the end of the outlet pipe 32 is located in the degradation chamber 12.

[0037] It should be further explained that an aeration pipe 40 is provided through the surface of the cover plate 19, and the connection position of the aeration pipe 40 and the cover plate 19 is fixed by welding. A third solenoid valve 41 is installed on the upper end flange of the aeration pipe 40, and an aeration hole 42 running through the interior is opened at the lower end of the aeration pipe 40. A collar 43 is sleeved on the surface of the aeration pipe 40, and a mesh cover 44 is welded and fixed to the end face of the collar 43. The mesh cover 44 is slidably sleeved on the lower end of the aeration pipe 40, and the mesh cover 44 covers the port position of the aeration hole 42. An internal thread 46 is provided on the inner wall surface of the collar 43, and an external thread 45 is provided on the outer wall surface of the aeration pipe 40. The external thread 45 and the internal thread 46 are threadedly connected to each other. When the mesh cover 44 used for filtering the aeration hole 42 is disassembled and cleaned, the collar 43 is rotated so that the internal thread 46 and the external thread 45 are threadedly moved relative to each other, so that the mesh cover 44 can be disassembled.

[0038] It should be further explained that a water outlet interface 50 is provided at the lower end of one side of the degradation chamber 12, and the connection position between the water outlet interface 50 and the box body 10 is fixed by welding. A fourth solenoid valve 51 is provided on the surface of the water outlet interface 50, and the valve core of the fourth solenoid valve 51 is embedded in the interior of the water outlet interface 50.

[0039] Further, it should be noted that an exhaust interface 52 is provided at the upper end of one side of the degradation chamber 12. The connection position between the exhaust interface 52 and the box body 10 is fixed by welding. A fifth solenoid valve 53 is provided on the surface of the exhaust interface 52, and the valve core of the fifth solenoid valve 53 is embedded inside the exhaust interface 52.

[0040] Working mode: When sewage treatment is required, sewage can be sent into the sedimentation chamber 13 through the sewage interface 14. Then, after the water level of the sewage continuously rises, the sewage pump 30 is synchronously turned on. At this time, the sewage is filtered through the filter screen 22, and the sewage pump 30 can send the sewage after filtering out particulate impurities into the degradation chamber 12. The external oxygen delivery air pump is connected to the aeration pipe 40, and oxygen aeration can be carried out in the sewage through the aeration holes 42 of the aeration pipe 40 for aerobic degradation. Then, the oxygen supply is stopped to seal the degradation chamber 12 to achieve anaerobic degradation.

[0041] When waste discharge from the sedimentation chamber 13 is required, the second solenoid valve 17 is opened, and waste can be discharged through the waste discharge interface 16. When the water filtered by the overall structure needs to be discharged, the fourth solenoid valve 51 is opened, and the water outlet operation is carried out through the water outlet interface 50. When exhaust is required, the gas generated inside the overall device can be collected through the exhaust interface 52.

[0042] When the filter screen 22 needs to be replaced, the cover plate 19 is removed, and the positioning pin 24 is pulled. Through the stretching effect of the spring 25, the positioning pin 24 is separated from the positioning groove 26, and the separation of the plate frame 21 from the sedimentation chamber 13 can be achieved.

[0043] When the mesh cover 44 for filtering the aeration holes 42 needs to be disassembled and cleaned, the collar 43 is rotated so that its internal thread 46 and the external thread 45 move relative to each other in a threaded manner, and the disassembly of the mesh cover 44 can be achieved.

[0044] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A rural domestic sewage purification tank, comprising a box body (10), characterized in that: A partition plate (11) is arranged at the middle position inside the box body (10), and the parts of the surface of the partition plate (11) in contact with the box body (10) are fixed by welding. The partition plate (11) divides the interior of the box body (10) into a degradation chamber (12) and a sedimentation chamber (13). A sewage interface (14) and a waste discharge interface (16) are respectively arranged through the upper end and the lower end of the inner wall of the sedimentation chamber (13), and the connection positions of the sewage interface (14) and the waste discharge interface (16) with the box body (10) are fixed by welding respectively. A first electromagnetic valve (15) is arranged on the surface of the sewage interface (14), and the valve core of the first electromagnetic valve (15) is embedded inside the sewage interface (14). A second electromagnetic valve (17) is arranged on the surface of the waste discharge interface (16), and the valve core of the second electromagnetic valve (17) is embedded inside the waste discharge interface (16). A ramp plate (18) is arranged at the lower end inside the sedimentation chamber (13), and the ramp plate (18) is fixedly assembled with the bottom of the box body (10) by screws, and one side of the ramp plate (18) is closely attached to the surface of the partition plate (11). The bottom of the ramp of the ramp plate (18) corresponds to the position of the waste discharge interface (16). A cover plate (19) is arranged to cover the upper end of the box body (10), and the edge of the cover plate (19) is fixedly assembled with the end face of the box body (10) by screws.

2. The rural domestic sewage purification tank according to claim 1, characterized in that: Support blocks (20) with equal specifications and symmetrically distributed are arranged on the inner wall of the box body (10) and the surface of the partition plate (11). Two support blocks (20) are located inside the sedimentation chamber (13). A plate frame (21) is arranged at the upper end of the support block (20). The outer peripheral walls of the plate frame (21) are slidably and closely attached to the inner wall surface of the box body (10) and the surface of the partition plate (11) respectively. A filter screen (22) is fixedly assembled on the inner peripheral wall of the plate frame (21).

3. The rural domestic sewage purification tank according to claim 2, characterized in that: Positioning rings (23) are respectively arranged on both sides of the upper end of the plate frame (21). The outer wall surfaces of the positioning rings (23) are welded and fixed to the surface of the plate frame (21). A positioning pin (24) is slidably sleeved inside the positioning rings (23).

4. The rural domestic sewage purification tank according to claim 3, characterized in that: A spring (25) is wound around the surface of the positioning pin (24). The two ends of the spring (25) are fixedly assembled with the surface of the positioning pin (24) and the end face of the positioning ring (23) respectively. Positioning grooves (26) are respectively opened on one side of the inner wall surface of the box body (10) and the partition plate (11). The positioning pin (24) is slidably inserted and docked with the positioning groove (26) at the corresponding position.

5. The septic tank for purifying rural domestic sewage according to claim 1, characterized in that: The upper end of the cover plate (19) is fixedly equipped with a sewage pump (30) through a bracket, and a water inlet pipe (31) is installed on the water inlet flange of the sewage pump (30). The water inlet pipe (31) passes through the surface of the cover plate (19), and the connection position between the water inlet pipe (31) and the cover plate (19) is sealed and filled with resin glue. The end of the water inlet pipe (31) is located in the sedimentation chamber (13) and is arranged above the filter screen (22). The water outlet flange of the sewage pump (30) is installed with a water outlet pipe (32), and the water outlet pipe (32) passes through the surface of the cover plate (19), and the connection position between the water outlet pipe (32) and the cover plate (19) is sealed and filled with resin glue. The end of the water outlet pipe (32) is located in the degradation chamber (12).

6. The rural domestic sewage purification tank according to claim 1, characterized in that: An aeration pipe (40) is provided through the surface of the cover plate (19), and the connection position of the aeration pipe (40) and the cover plate (19) is fixed by welding. A third electromagnetic valve (41) is installed on the upper flange of the aeration pipe (40), and an aeration hole (42) penetrating the interior of the aeration pipe (40) is provided at the lower end thereof. A collar (43) is sleeved on the surface of the aeration pipe (40), and a mesh cover (44) is welded and fixed to the end face of the collar (43). The mesh cover (44) is slidably sleeved on the lower end of the aeration pipe (40), and the mesh cover (44) covers the port position of the aeration hole (42). An internal thread (46) is provided on the inner wall surface of the collar (43), and an external thread (45) is provided on the outer wall surface of the aeration pipe (40), and the external thread (45) and the internal thread (46) are threadably butted with each other.

7. A rural domestic sewage purification tank according to claim 1, characterized in that: A water outlet interface (50) is provided at the lower end of one side of the degradation chamber (12); the connection position between the water outlet interface (50) and the box body (10) is fixed by welding; a fourth solenoid valve (51) is provided on the surface of the water outlet interface (50); and a valve core of the fourth solenoid valve (51) is embedded in the interior of the water outlet interface (50).

8. The septic tank for purifying rural domestic sewage according to claim 1, characterized in that: An exhaust port (52) is provided at an upper end of one side of the degradation chamber (12); the connection position between the exhaust port (52) and the box body (10) is fixed by welding; a fifth solenoid valve (53) is provided on the surface of the exhaust port (52); and a valve core of the fifth solenoid valve (53) is embedded in the exhaust port (52).

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