Rural domestic sewage ecological treatment equipment and process

Abstract

The application discloses a kind of rural domestic sewage ecological treatment equipment and process, belong to sewage treatment technical field.The rural domestic sewage ecological treatment equipment, including processing box, the piston bin is arranged between purification bin and reaction bin, aeration assembly is arranged on the inner wall of the piston bin;By controlling the opening and closing of five-way valve and three-way valve internal passage, and cooperate piston plate piston movement in the inside of piston bin, gas generated after aeration can be transported to the inside of high-pressure gas separation membrane, using the difference of the permeation rate of different gas by special polymer membrane, when carbon dioxide permeates high-pressure gas separation membrane, by air pump into storage tank for storage, when sewage is biologically denitrified, carbon dioxide in the inside of storage tank is aerated to sewage by first aeration pipe, as "carbon source" for chemotrophic nitrifying bacteria in nitrification reaction, namely, carbon dioxide emission can be reduced, and the air quality of surrounding area is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment, and particularly relates to a rural domestic sewage ecological treatment equipment and process. BACKGROUND

[0002] At present, the domestic rural domestic sewage output is on the rise, but the rural domestic sewage treatment rate is low, and many places lack public facilities, such as toilets, short slope treatment facilities, etc., resulting in a large amount of sewage generated by some residents during life cannot be treated in time, thereby causing pollution to the water environment, due to the scattered residence of rural population, the small area of residence concentration, resulting in the point of rural domestic sewage discharge is wide, without unified planning, so that the dispersed sewage is randomly discharged into the nearby river, causing pollution to the water environment.

[0003] A domestic sewage ecological purification tank and its treatment process are disclosed in Chinese patent CN118359350B, by cooperating with the installation of the rotating assembly added in the installation frame, the communication between the internal ventilation cavity and the installation cavity of the installation frame is realized by the up-down movement of the bottom filter plate assembly, so as to cooperate with the gas input by the air pump, the power airflow is guided into the ventilation cavity and acts on the rotating assembly, the rotating assembly is pushed to rotate under the pneumatic action, so as to realize the rotation of the biofilm treatment assembly, so that the filler sheet immersed in the purification tank is fully and uniformly contacted in the purification tank, the domestic sewage in the purification tank is fully biologically treated, the treatment range of aerobic microorganisms in the purification tank is greatly improved, the treatment uniformity is improved, and finally the water purification efficiency is improved, and the use effect is good.

[0004] However, the domestic sewage ecological purification tank and its treatment process, when aerating the sewage, will generate carbon dioxide, which will be directly discharged into the air, resulting in too high carbon dioxide concentration in the local area, reducing the air quality of the area, thereby affecting the ecological environment of the surrounding environment. SUMMARY

[0005] The present application aims to provide a rural domestic sewage ecological treatment equipment to solve the problems raised in the background art.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a rural domestic sewage ecological treatment equipment, comprising a treatment box, a purification bin and a reaction bin are arranged in the treatment box, a piston bin is arranged between the purification bin and the reaction bin, an aeration assembly is arranged on the inner wall of the piston bin, the aeration assembly comprises a residue discharge mechanism arranged on the inner wall of the purification bin, a recovery mechanism for treating carbon dioxide generated during aeration of sewage is arranged on the treatment box, the recovery mechanism comprises a hydraulic cylinder mounted on the treatment box, a piston plate is fixedly connected to one end of the outer wall of the hydraulic cylinder, the piston bin is divided into a water suction chamber and an air suction chamber by the piston plate, a five-way valve is mounted on the inner wall of the treatment box, a connecting pipe is mounted on the outer wall of the five-way valve, a first air suction pipe is mounted on the outer wall of the five-way valve, an air inlet pipe is mounted on the top end of the outer wall of the five-way valve, a three-way valve is mounted on the outer wall of the air inlet pipe, an air pipe is mounted on the outer wall of the three-way valve, a high-pressure gas separation membrane matched with the air pipe is arranged on the outer wall of the treatment box, a gas storage tank is mounted on the outer wall of the high-pressure gas separation membrane, a gas pump is mounted on the outer wall of the treatment box, the gas pump is connected with the gas storage tank through an air pipe, and a storage tank matched with the gas pump is arranged on the outer wall of the treatment box.

[0007] Further, a second air suction pipe is mounted on the top end of the outer wall of the five-way valve, and a second aeration pipe matched with the purification bin is arranged on the top end of the outer wall of the five-way valve.

[0008] Further, a four-way valve is mounted on the outer wall of the air pipe, a first aeration pipe matched with the reaction bin is arranged on the outer wall of the four-way valve, and an exhaust pipe is mounted on the outer wall of the four-way valve.

[0009] Further, the residue discharge mechanism comprises a connecting shaft, the connecting shaft is mounted in the purification bin, a motor matched with the connecting shaft is arranged on the outer wall of the treatment box, a driving wheel is fixedly connected to the outer wall of the connecting shaft, a belt is drivingly connected to the outer wall of the driving wheel, a connecting block is fixedly connected to the outer wall of the belt, a residue scraping plate is rotatably connected to the outer wall of the connecting block, a torsional spring matched with the residue scraping plate is arranged on the inner wall of the connecting block, a collecting groove is arranged on the treatment box, a scraper matched with the residue scraping plate is arranged on the inner wall of the collecting groove, a connecting channel for connecting the collecting groove and the piston bin is arranged in the treatment box, a first flow channel matched with the purification bin is arranged on the inner wall of the piston bin, and a limiting plate is fixedly connected to the outer wall of the piston plate.

[0010] Further, a first filter is mounted on the inner wall of the collecting groove, and a switch door is mounted on the outer wall of the treatment box.

[0011] Further, the inside of the processing box is internally provided with an electric cylinder, the outer wall of the electric cylinder is fixedly connected with a baffle, the outer wall of the baffle is fixedly connected with a connecting plate, the outer wall of the connecting plate is provided with a through groove matched with the connecting channel, the outer wall of the connecting plate is fixedly connected with a connecting rod, one end of the outer wall of the connecting rod is fixedly connected with a limiting block, the outer wall of the limiting block is fixedly connected with a fixed plate, the outer wall of the fixed plate is provided with a first through hole, the outer wall of the fixed plate is fixedly connected with a first spring piece, the outer wall of the first spring piece is provided with a first blocking plate matched with the first through hole, the inner wall of the first flow channel is internally provided with a second filter, the outer wall of the fixed plate is provided with a second through hole, the outer wall of the fixed plate is fixedly connected with a second spring piece, the outer wall of the second spring piece is provided with a second blocking plate matched with the second through hole, and the end of the piston chamber away from the first flow channel is provided with a second flow channel.

[0012] Further, the inner wall of the processing box is provided with an air chamber matched with the fixed plate, the inside of the processing box is provided with a sliding groove at the position of the second flow channel, the inner wall of the processing box is provided with a ventilation groove for connecting the air chamber and the sliding groove, the inner wall of the sliding groove is slidably connected with a sliding block, the outer wall of the sliding block is fixedly connected with a blocking block, the outer wall of the sliding block is provided with a third through hole, the outer wall of the sliding block is fixedly connected with a third spring piece, and the outer wall of the third spring piece is provided with a third blocking plate matched with the third through hole.

[0013] Further, the top end of the outer wall of the processing box is internally provided with a plurality of solar panels, and the top end of the outer wall of the processing box is provided with a storage battery matched with the solar panels.

[0014] A treatment process of rural domestic sewage ecological treatment equipment, comprising the following steps:

[0015] S1: first, inject domestic sewage into the inside of the purification chamber, and pour activated sludge into the sewage;

[0016] S2: start the hydraulic cylinder to drive the piston plate to do piston movement in the inside of the piston chamber, so as to suck external air into the piston chamber and carry out aeration work on the sewage in the inside of the purification chamber;

[0017] S3: control the five-way valve and cooperate with the piston plate to do piston movement in the inside of the piston chamber, so as to transport the gas generated during aeration to the high-pressure gas separation membrane, utilize the difference in permeation rate of different gases through the special high-molecular membrane, make carbon dioxide permeate through the high-pressure gas separation membrane, and control the four-way valve to pass the carbon dioxide into the storage tank;

[0018] S4: collect the impurities floating on the surface of the sewage through the slag discharge mechanism, and then drive the piston plate to do piston movement in the inside of the piston chamber to transport the sewage in the inside of the purification chamber to the inside of the reaction chamber;

[0019] S5: Start the air pump and cooperate with the four-way valve to transport the purified carbon dioxide in the storage tank into the inside of the first aeration pipe, and aerate the sewage in the inside of the reaction bin, so that the purified carbon dioxide is mixed with the sewage, thereby providing the chemotrophic nitrifying bacteria in the nitrification reaction as "carbon source" for consumption in the biological denitrification process of sewage treatment.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] (1) By controlling the opening and closing of the internal passages of the five-way valve and the three-way valve, and cooperating with the piston movement of the piston plate in the inside of the piston bin, the present application can aerate the sewage in the inside of the purification bin, improve the reaction efficiency of the sewage and the activated sludge, and the gas generated after aeration will be transported into the inside of the high-pressure gas separation membrane. The difference in permeation rate of different gases through the special high-molecular membrane enables the carbon dioxide to permeate through the high-pressure gas separation membrane and enter the storage tank through the air pump for storage. When the sewage is treated by biological denitrification, the carbon dioxide in the inside of the storage tank is aerated to the sewage through the first aeration pipe, thereby providing the chemotrophic nitrifying bacteria in the nitrification reaction as "carbon source" for consumption, which can reduce the emission of carbon dioxide and ensure the air quality of the surrounding area.

[0022] (2) The present application can push the floating matter together with a small amount of sewage into the inside of the collection tank by driving the connecting shaft belt of the motor to move the slag scraping plate, cooperate with the filtration of the first filter to retain the floating matter in the inside of the collection tank, and cooperate with the descent of the piston plate to extrude the sewage back to the purification bin. When the surface of the slag scraping plate touches the surface of the scraper, the scraper will push the slag scraping plate to rotate, and through the friction between the scraper and the slag scraping plate, the scraper can scrape off the residual floating matter on the surface of the slag scraping plate, thereby improving the overall ease of use of the device.

[0023] (3) The present application can limit the position of the connecting channel by driving the baffle with the motor, so that the second through hole moves to the surface of the first flow channel, and the third through hole moves to the surface of the second flow channel. Cooperating with the piston movement of the piston plate in the inside of the piston bin, the sewage in the inside of the purification bin can be sucked into the water suction chamber, and the sewage in the inside of the water suction chamber can be extruded into the reaction bin. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a 3D physical diagram of a rural domestic sewage ecological treatment equipment in the present application;

[0025] Figure 2 It is a schematic diagram of the overall structure of a rural domestic sewage ecological treatment equipment in the present application;

[0026] Figure 3 It is a schematic diagram of the internal structure of the treatment box in the present application;

[0027] Figure 4 For the hydraulic cylinder and piston plate in the present application, the structure of the cooperation between the five-way valve and the connecting pipe is shown in the schematic diagram.

[0028] Figure 5 For the hydraulic cylinder and piston plate in the present application, the structure of the cooperation between the five-way valve and the connecting pipe is shown in the schematic diagram.

[0029] Figure 6 For the hydraulic cylinder and piston plate in the present application, the structure of the cooperation between the five-way valve and the connecting pipe is shown in the schematic diagram.

[0030] Figure 7 For the hydraulic cylinder and piston plate in the present application, the structure of the cooperation between the five-way valve and the connecting pipe is shown in the schematic diagram.

[0031] Figure 8 For the hydraulic cylinder and piston plate in the present application, the structure of the cooperation between the five-way valve and the connecting pipe is shown in the schematic diagram.

[0032] Figure 9 For the hydraulic cylinder and piston plate in the present application, the structure of the cooperation between the five-way valve and the connecting pipe is shown in the schematic diagram.

[0033] Figure 10 For the hydraulic cylinder and piston plate in the present application, the structure of the cooperation between the five-way valve and the connecting pipe is shown in the schematic diagram.

[0034] Figure 11 For the hydraulic cylinder and piston plate in the present application, the structure of the cooperation between the five-way valve and the connecting pipe is shown in the schematic diagram.

[0035] In the figure: 1, processing box; 2, purification bin; 3, reaction bin; 4, piston bin; 401, water suction chamber; 402, air suction chamber; 5, hydraulic cylinder; 6, piston plate; 7, five-way valve; 8, connecting pipe; 9, first air suction pipe; 10, air inlet pipe; 11, three-way valve; 12, air pipe; 13, high-pressure gas separation membrane; 14, gas storage tank; 15, air pump; 16, air pipe; 17, storage tank; 18, four-way valve; 19, first aeration pipe; 20, second air suction pipe; 21, second aeration pipe; 22, connecting shaft; 23, motor; 24, drive wheel; 25, belt; 26, connecting block; 27, slag scraping plate; 28, torsional spring; 29, collection groove; 30, scraper; 31, first filter; 32, connecting channel; 33, exhaust pipe; 34, electric cylinder; 35, baffle; 36, connecting plate; 37, through slot; 38, connecting rod; 39, limiting block; 40, fixed plate; 41, first through hole; 42, first spring piece; 43, first blocking plate; 44, first flow passage; 45, limiting plate; 46, switch door; 47, second filter; 48, air bin; 49, second flow passage; 50, second through hole; 51, second spring piece; 52, second blocking plate; 53, sliding groove; 54, air vent groove; 55, sliding block; 56, blocking block; 57, third through hole; 58, third spring piece; 59, third blocking plate; 60, solar panel; 61, battery. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0037] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0038] Embodiment one

[0039] Please refer to Figures 1-11 The present application provides a technical solution: a rural domestic sewage ecological treatment equipment, comprising a treatment box 1, the inside of the treatment box 1 is provided with a purification bin 2 and a reaction bin 3, a piston bin 4 is arranged between the purification bin 2 and the reaction bin 3, an aeration assembly is arranged on the inner wall of the piston bin 4, the aeration assembly comprises a residue discharge mechanism arranged on the inner wall of the purification bin 2, a recovery mechanism for treating carbon dioxide generated when sewage is aerated is arranged on the treatment box 1, the recovery mechanism comprises a hydraulic cylinder 5 mounted on the treatment box 1, a piston plate 6 is fixedly connected to one end of the outer wall of the hydraulic cylinder 5, the piston bin 4 is divided into a water suction chamber 401 and an air suction chamber 402 by the piston plate 6, a five-way valve 7 is mounted on the inner wall of the treatment box 1, a connecting pipe 8 is mounted on the outer wall of the five-way valve 7, a first air suction pipe 9 is mounted on the outer wall of the five-way valve 7, an air inlet pipe 10 is mounted on the top end of the outer wall of the five-way valve 7, a three-way valve 11 is mounted on the outer wall of the air inlet pipe 10, an air pipe 12 is mounted on the outer wall of the three-way valve 11, a high-pressure gas separation membrane 13 adapted to the air pipe 12 is arranged on the outer wall of the treatment box 1, a gas storage tank 14 is mounted on the outer wall of the high-pressure gas separation membrane 13, a gas pump 15 is mounted on the outer wall of the treatment box 1, the gas pump 15 is connected to the gas storage tank 14 through an air pipe 16, a storage tank 17 adapted to the gas pump 15 is arranged on the outer wall of the treatment box 1, a second air suction pipe 20 is mounted on the top end of the outer wall of the five-way valve 7, a second aeration pipe 21 adapted to the purification bin 2 is arranged on the top end of the outer wall of the five-way valve 7, a four-way valve 18 is mounted on the outer wall of the air pipe 16, a first aeration pipe 19 adapted to the reaction bin 3 is arranged on the outer wall of the four-way valve 18, and an exhaust pipe 33 is mounted on the outer wall of the four-way valve 18.

[0040] When in use, after the domestic sewage is injected into the inside of the purification bin 2, the activated sludge is put into the sewage, at this time, the external power supply is connected to start the hydraulic cylinder 5 to push the piston plate 6 to do the piston movement in the inside of the piston bin 4, when the hydraulic cylinder 5 pushes the piston plate 6 to move downward, the three-way valve 11 is controlled to close the passage between the air inlet pipe 10 and the air pipe 12, open the passage between the air inlet pipe 10 and the five-way valve 7, and control the five-way valve 7 to open the passage between the connecting pipe 8 and the air inlet pipe 10 and close other passages, so that the external air is sucked into the inside of the air suction chamber 402 through the air inlet pipe 10 and the connecting pipe 8, when the hydraulic cylinder 5 pushes the piston plate 6 to move upward, the air in the inside of the air suction chamber 402 is squeezed, so that the air is squeezed into the inside of the connecting pipe 8, at this time, the five-way valve 7 is controlled to open the passage between the connecting pipe 8 and the second aeration pipe 21 and close other passages, so that the air is squeezed into the inside of the second aeration pipe 21, and the sewage in the inside of the purification bin 2 is aerated, the reaction efficiency of the sewage and the activated sludge is improved, and the gas generated after aeration is stored in the inside of the purification bin 2;

[0041] When the reaction between the sewage and the activated sludge is completed, the aeration of the sewage is stopped, the sewage is deposited in the inside of the purification bin 2, at the same time, the hydraulic cylinder 5 continues to push the piston plate 6 to do the piston movement in the inside of the piston bin 4, and the five-way valve 7 is controlled to open the passage between the connecting pipe 8 and the first air suction pipe 9 and close other passages, so that when the piston plate 6 descends, the gas in the inside of the purification bin 2 can be sucked into the inside of the first air suction pipe 9 through the connecting pipe 8, and when the piston plate 6 rises, the gas in the inside of the air suction chamber 402 is squeezed and squeezed into the inside of the connecting pipe 8, at this time, the five-way valve 7 is controlled to open the passage between the connecting pipe 8 and the air inlet pipe 10 and close other passages, so that the gas in the inside of the connecting pipe 8 enters the inside of the air inlet pipe 10, at this time, the three-way valve 11 is controlled to limit the air inlet pipe 10 and open the passage with the air pipe 12, so that the gas can enter the inside of the high-pressure gas separation membrane 13 through the air pipe 12, by using the difference in the penetration rate of different gases through the special high-molecular membrane, when the carbon dioxide penetrates the high-pressure gas separation membrane 13 and enters the gas storage tank 14, the gas suction work of the gas pump 15 is matched with the four-way valve 18 to release the limitation of the air pipe 16 and close other passages, so that the carbon dioxide gas in the inside of the gas storage tank 14 is sucked into the inside of the storage tank 17 for storage, when other gases penetrate the high-pressure gas separation membrane 13 and enter the gas storage tank 14, the four-way valve 18 opens the passage between the air pipe 16 and the exhaust pipe 33 and closes other passages, so that the other gases are discharged into the air through the exhaust pipe 33;

[0042] After the sewage inside the purification bin 2 is precipitated, the sewage is transported to the inside of the reaction bin 3 for biological denitrification treatment, at this time, the four-way valve 18 is controlled to open the channel between the aeration pipe 16 and the first aeration pipe 19, and close other channels, so that the carbon dioxide inside the storage tank 17 is pumped into the inside of the first aeration pipe 19 by the air pump 15, and the sewage inside the reaction bin 3 is aerated, so that the sewage can fully contact with the carbon dioxide, and the chemotrophic nitrifying bacteria in the nitrification reaction consumes as "carbon source";

[0043] And by controlling the five-way valve 7 to open the channel between the second suction pipe 20 and the air inlet pipe 10, and close other channels, and cooperating with the piston movement of the piston plate 6 inside the piston bin 4, the unspent carbon dioxide inside the reaction bin 3 can be collected again, and the carbon dioxide stored in the storage tank 17 can be purified by the high-pressure gas separation membrane 13, which can reduce the emission of carbon dioxide and ensure the air quality of the surrounding area.

[0044] The slag discharging mechanism comprises a connecting shaft 22 installed inside the purification bin 2, a motor 23 provided on the outer wall of the treatment box 1 and matched with the connecting shaft 22, a driving wheel 24 fixedly connected to the outer wall of the connecting shaft 22, a belt 25 drivingly connected to the outer wall of the driving wheel 24, a connecting block 26 fixedly connected to the outer wall of the belt 25, a slag scraping plate 27 rotatably connected to the outer wall of the connecting block 26, a torsion spring 28 provided on the inner wall of the connecting block 26 and matched with the slag scraping plate 27, a collecting groove 29 provided on the treatment box 1, a scraper 30 provided on the inner wall of the collecting groove 29 and matched with the slag scraping plate 27, a connecting channel 32 provided in the treatment box 1 and connecting the collecting groove 29 and the piston bin 4, a first flow channel 44 provided on the inner wall of the piston bin 4 and matched with the purification bin 2, a limiting plate 45 fixedly connected to the outer wall of the piston plate 6, a first filter 31 installed on the inner wall of the collecting groove 29, and a switch door 46 installed on the outer wall of the treatment box 1.

[0045] When in use, when aerating the sewage in the purification bin 2, the tiny bubbles in the sewage will push the floating objects to float up, at this time, the motor 23 is started to drive the connecting shaft 22 to rotate, the connecting shaft 22 will drive the belt 25 to rotate through the driving wheel 24 when rotating, thereby pushing the slag scraping plate 27 to perform slag scraping work on the surface of the sewage, when the surface of the slag scraping plate 27 touches the surface of the scraping plate 30, the scraping plate 30 will generate a pushing force on the slag scraping plate 27, so that the slag scraping plate 27 rotates around the center point of the connecting block 26 when passing through the surface of the scraping plate 30, and the torsional spring 28 is twisted, in this process, one end of the scraping plate 30 will abut against the surface of the slag scraping plate 27, and through the friction between the scraping plate 30 and the slag scraping plate 27, the scraping plate 30 can scrape off the residual floating objects on the surface of the slag scraping plate 27, after the slag scraping plate 27 completely passes through the surface of the scraping plate 30, the torsional spring 28 pushes the slag scraping plate 27 to reset under the action of force, so that the slag scraping plate 27 does not affect the subsequent slag scraping work, thereby improving the overall ease of use of the device.

[0046] In the process of the slag scraping plate 27 performing slag scraping work on the surface of the sewage, the slag scraping plate 27 will push the floating objects together with a small amount of sewage into the inside of the collecting groove 29, and then filter the floating objects through the first filter 31 to retain them in the inside of the collecting groove 29, while the sewage will pass through the first filter 31 to enter the inside of the connecting channel 32, when the hydraulic cylinder 5 pulls the piston plate 6 to rise, the piston plate 6 will push the limiting plate 45 to rise synchronously, so that the limiting plate 45 releases the limiting of the connecting channel 32, so that the sewage in the connecting channel 32 can flow into the water suction chamber 401, when the piston plate 6 pushes the limiting plate 45 to descend again, the limiting plate 45 will again limit the connecting channel 32, at this time, by continuously descending the piston plate 6, the sewage in the water suction chamber 401 can be squeezed, so that the sewage in the water suction chamber 401 is squeezed into the inside of the purification bin 2 through the first flow channel 44, after the sewage is treated, only the switch door 46 is opened, the first filter 31 is taken out for cleaning, and then installed in the inside of the collecting groove 29, thereby improving the overall ease of use of the device.

[0047] The inner part of the processing box 1 is provided with an electric cylinder 34, the outer wall of the electric cylinder 34 is fixedly connected with a baffle 35, the outer wall of the baffle 35 is fixedly connected with a connecting plate 36, the outer wall of the connecting plate 36 is provided with a through groove 37 matched with the connecting channel 32, the outer wall of the connecting plate 36 is fixedly connected with a connecting rod 38, one end of the outer wall of the connecting rod 38 is fixedly connected with a limiting block 39, the outer wall of the limiting block 39 is fixedly connected with a fixed plate 40, the outer wall of the fixed plate 40 is provided with a first through hole 41, the outer wall of the fixed plate 40 is fixedly connected with a first spring piece 42, the outer wall of the first spring piece 42 is provided with a first blocking plate 43 matched with the first through hole 41, the inner wall of the first flow channel 44 is provided with a second filter 47, the outer wall of the fixed plate 40 is provided with a second through hole 50, the outer wall of the fixed plate 40 is fixedly connected with a second spring piece 51, the outer wall of the second spring piece 51 is provided with a second blocking plate 52 matched with the second through hole 50, the end of the piston chamber 4 away from the first flow channel 44 is provided with a second flow channel 49, the inner wall of the processing box 1 is provided with an air chamber 48 matched with the fixed plate 40, the inner part of the processing box 1 is provided with a sliding groove 53 at the position of the second flow channel 49, the inner wall of the processing box 1 is provided with an air passage 54 for connecting the air chamber 48 and the sliding groove 53, the inner wall of the sliding groove 53 is slidably connected with a sliding block 55, the outer wall of the sliding block 55 is fixedly connected with a blocking block 56, the outer wall of the sliding block 55 is provided with a third through hole 57, the outer wall of the sliding block 55 is fixedly connected with a third spring piece 58, the outer wall of the third spring piece 58 is provided with a third blocking plate 59 matched with the third through hole 57.

[0048] In use, when the sewage flows into the water suction chamber 401 through the connecting channel 32, the sewage passes through the through groove 37 on the surface of the connecting plate 36, and when the piston plate 6 extrudes the sewage in the water suction chamber 401 into the first flow channel 44, the sewage enters the inside of the first through hole 41 and exerts a pushing force on the surface of the first blocking plate 43, so as to rotate the first blocking plate 43 around the connection between the first spring piece 42 and the fixed plate 40, thereby releasing the limitation of the first through hole 41, so that the sewage passes through the first flow channel 44 from the first through hole 41 into the inside of the purification chamber 2, thereby preventing the sewage in the purification chamber 2 from being sucked into the inside of the water suction chamber 401 through the first flow channel 44 when the piston plate 6 rises;

[0049] When it is needed to transport the sewage inside the purification bin 2 to the inside of the reaction bin 3, the five-way valve 7 is controlled to open the channel between the connecting pipe 8 and the air inlet pipe 10, and close other channels, at the same time, the three-way valve 11 is controlled to close the channel between the air inlet pipe 10 and the air pipe 12, and release the limiting of the air inlet pipe 10, at this time, the electric cylinder 34 is started to push the baffle 35 and the connecting plate 36 to move downward, so that the baffle 35 moves to the surface of the connecting channel 32 and limits the connecting channel 32, when the connecting plate 36 moves downward, it pushes the limiting block 39 and the fixed plate 40 to move downward synchronously through the connecting rod 38, so as to push the second through hole 50 to move to the surface of the first flow channel 44, when the fixed plate 40 moves downward, it will squeeze the air inside the air chamber 48, so as to squeeze the air inside the air chamber 48 into the inside of the chute 53 through the air vent groove 54, so that the air pressure in the inside of the chute 53 increases to push the sliding block 55 and the blocking block 56 upward, so that the blocking block 56 slides out of the surface of the second flow channel 49, and the third through hole 57 moves to the surface of the second flow channel 49, and then cooperates with the piston movement of the piston plate 6 in the piston bin 4, when the piston plate 6 rises, the water suction chamber 401 generates a suction force outside, at this time, the sewage inside the purification bin 2 is affected by the suction force to enter the inside of the second through hole 50, and exerts a pushing force on the surface of the second blocking plate 52, so as to rotate the second blocking plate 52 around the connection between the second spring sheet 51 and the fixed plate 40, thereby releasing the limiting of the second through hole 50, so that the sewage passes through the first flow channel 44 from the second through hole 50 to enter the inside of the water suction chamber 401, in this process, the second filter 47 filters the sewage entering the first flow channel 44, and retains the activated sludge in the inside of the purification bin 2, when the piston plate 6 descends, it squeezes the sewage in the water suction chamber 401 into the inside of the third through hole 57, and exerts a pushing force on the surface of the third blocking plate 59, so as to rotate the third blocking plate 59 around the connection between the third spring sheet 58 and the sliding block 55, thereby releasing the limiting of the third through hole 57, so that the sewage passes through the second flow channel 49 from the third through hole 57 to enter the inside of the reaction bin 3, and repeatedly several times to transport the sewage inside the purification bin 2 to the inside of the reaction bin 3.

[0050] A plurality of solar panels 60 are installed on the top outer wall of the treatment box 1, and a storage battery 61 adapted to the solar panels 60 is arranged on the top outer wall of the treatment box 1.

[0051] In use, when the weather is fine, the solar panels 60 can convert heat energy into electrical energy and charge the storage battery 61, so that the storage battery 61 can provide energy supply for the operation of the hydraulic cylinder 5, the motor 23 and the electric cylinder 34, thereby reducing the cost of operation of the device.

[0052] A treatment process of a rural domestic sewage ecological treatment equipment, comprising the following steps:

[0053] S1: First, the domestic sewage is injected into the inside of the purification bin 2, and the activated sludge is put into the sewage;

[0054] S2: The hydraulic cylinder 5 is started to push the piston plate 6 to do piston movement in the inside of the piston bin 4, so that the outside air is sucked into the piston bin 4, and the sewage in the inside of the purification bin 2 is aerated;

[0055] S3: By controlling the five-way valve 7 and cooperating with the piston plate 6 to do piston movement in the inside of the piston bin 4, the gas generated during aeration is transported to the high-pressure gas separation membrane 13, and the difference in permeation rate of different gases is used to make the carbon dioxide penetrate through the high-pressure gas separation membrane 13, and the four-way valve 18 is controlled to pass the carbon dioxide into the storage tank 17;

[0056] S4: The impurities floating on the surface of the sewage are collected by the slag discharge mechanism, and then the sewage in the inside of the purification bin 2 is transported into the inside of the reaction bin 3 by the piston plate 6 to do piston movement in the inside of the piston bin 4;

[0057] S5: The gas pump 15 is started and cooperates with the four-way valve 18 to transport the purified carbon dioxide in the storage tank 17 into the inside of the first aeration pipe 19, and the sewage in the inside of the reaction bin 3 is aerated, so that the purified carbon dioxide is mixed with the sewage, thereby consuming the chemotrophic nitrifying bacteria in the nitrification reaction as "carbon source" in the biological denitrification process of sewage treatment.

[0058] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An ecological treatment equipment for rural domestic sewage, comprising a treatment tank (1), wherein the treatment tank (1) is provided with a purification chamber (2) and a reaction chamber (3), characterized in that: A piston chamber (4) is provided between the purification chamber (2) and the reaction chamber (3). An aeration assembly is provided on the inner wall of the piston chamber (4). The aeration assembly includes a slag discharge mechanism provided on the inner wall of the purification chamber (2). A recovery mechanism for treating the carbon dioxide generated during sewage aeration is provided on the treatment box (1). The recycling mechanism includes a hydraulic cylinder (5) installed on the processing tank (1). A piston plate (6) is fixedly connected to the outer wall of one end of the hydraulic cylinder (5). The piston plate (6) divides the piston chamber (4) into a water intake chamber (401) and an air intake chamber (402). A five-way valve (7) is installed on the inner wall of the processing tank (1). A connecting pipe (8) is installed on the outer wall of the five-way valve (7). A first air intake pipe (9) is installed on the outer wall of the five-way valve (7). An air inlet pipe (10) is installed on the top outer wall of the five-way valve (7). A three-way valve (11) is installed on the outer wall of the processing box (1). A vent pipe (12) is installed on the outer wall of the three-way valve (11). A high-pressure gas separation membrane (13) adapted to the vent pipe (12) is provided on the outer wall of the processing box (1). A gas storage tank (14) is installed on the outer wall of the high-pressure gas separation membrane (13). An air pump (15) is installed on the outer wall of the processing box (1). The air pump (15) is connected to the gas storage tank (14) through a vent pipe (16). A storage tank (17) adapted to the air pump (15) is provided on the outer wall of the processing box (1). The top outer wall of the five-way valve (7) is equipped with a second suction pipe (20), and the top outer wall of the five-way valve (7) is provided with a second aeration pipe (21) adapted to the purification chamber (2). A four-way valve (18) is installed on the outer wall of the ventilation pipe (16), a first aeration pipe (19) adapted to the reaction chamber (3) is provided on the outer wall of the four-way valve (18), and an exhaust pipe (33) is installed on the outer wall of the four-way valve (18). The slag discharge mechanism includes a connecting shaft (22), which is installed inside the purification chamber (2). A motor (23) adapted to the connecting shaft (22) is provided on the outer wall of the treatment box (1). A drive wheel (24) is fixedly connected to the outer wall of the connecting shaft (22). A belt (25) is driven to the outer wall of the drive wheel (24). A connecting block (26) is fixedly connected to the outer wall of the belt (25). A scraper (27) is rotatably connected to the outer wall of the connecting block (26). The inner wall of the treatment box (1) is provided with a torsion spring (28) adapted to the scraper (27). The inside of the treatment box (1) is provided with a collection tank (29). The inner wall of the collection tank (29) is provided with a scraper (30) adapted to the scraper (27). The inside of the treatment box (1) is provided with a connecting channel (32) for connecting the collection tank (29) and the piston chamber (4). The inner wall of the piston chamber (4) is provided with a first flow channel (44) adapted to the purification chamber (2). The outer wall of the piston plate (6) is fixedly connected with a limiting plate (45).

2. The rural domestic sewage ecological treatment equipment according to claim 1, characterized in that: The inner wall of the collection tank (29) is equipped with a first filter element (31), and the outer wall of the processing box (1) is equipped with a switch door (46).

3. The rural domestic sewage ecological treatment equipment according to claim 1, characterized in that: An electric cylinder (34) is installed inside the processing box (1). A baffle (35) is fixedly connected to the outer wall of the electric cylinder (34). A connecting plate (36) is fixedly connected to the outer wall of the baffle (35). A through groove (37) adapted to the connecting channel (32) is provided on the outer wall of the connecting plate (36). A connecting rod (38) is fixedly connected to the outer wall of the connecting plate (36). A limit block (39) is fixedly connected to the outer wall of one end of the connecting rod (38). A fixing plate (40) is fixedly connected to the outer wall of the limit block (39). A first through hole (41) is opened on the outer wall of the fixing plate (40). (40) has a first spring plate (42) fixedly connected to its outer wall. The first spring plate (42) has a first sealing plate (43) adapted to the first through hole (41) on its outer wall. The first flow channel (44) has a second filter element (47) installed on its inner wall. The fixed plate (40) has a second through hole (50) on its outer wall. The fixed plate (40) has a second spring plate (51) fixedly connected to its outer wall. The second spring plate (51) has a second sealing plate (52) adapted to the second through hole (50) on its outer wall. The piston chamber (4) has a second flow channel (49) at one end away from the first flow channel (44).

4. The rural domestic sewage ecological treatment equipment according to claim 3, characterized in that: The processing box (1) has an air chamber (48) adapted to the fixed plate (40) on its inner wall. The processing box (1) has a chute (53) located at the position of the second flow channel (49) inside. The processing box (1) has a ventilation groove (54) for connecting the air chamber (48) and the chute (53) on its inner wall. The chute (53) has a slider (55) slidably connected to its inner wall. The slider (55) has a sealing block (56) fixedly connected to its outer wall. The slider (55) has a third through hole (57) on its outer wall. The slider (55) has a third spring plate (58) fixedly connected to its outer wall. The third spring plate (58) has a third sealing plate (59) adapted to the third through hole (57) on its outer wall.

5. The rural domestic sewage ecological treatment equipment according to claim 4, characterized in that: Multiple sets of solar panels (60) are installed on the top outer wall of the processing box (1), and a storage battery (61) adapted to the solar panels (60) is provided on the top outer wall of the processing box (1).

6. The treatment process of the rural domestic sewage ecological treatment equipment according to claim 1, and the rural domestic sewage ecological treatment equipment according to any one of claims 1-5, characterized in that: Includes the following steps: S1: First, inject domestic sewage into the purification chamber (2) and add activated sludge into the sewage; S2: Start the hydraulic cylinder (5) to push the piston plate (6) to make piston movement inside the piston chamber (4), thereby drawing external air into the piston chamber (4) and aerating the sewage inside the purification chamber (2); S3: By controlling the five-way valve (7) and cooperating with the piston plate (6) to make piston movement inside the piston chamber (4), the gas generated during aeration is transported to the high-pressure gas separation membrane (13). By utilizing the difference in the permeation rate of the special polymer membrane for different gases, when carbon dioxide passes through the high-pressure gas separation membrane (13), the four-way valve (18) is controlled to pass carbon dioxide into the storage tank (17). S4: The slag discharge mechanism collects the impurities floating on the surface of the sewage, and then the piston plate (6) moves inside the piston chamber (4) to transport the sewage inside the purification chamber (2) to the inside of the reaction chamber (3). S5: Start the air pump (15) and cooperate with the four-way valve (18) to transport the purified carbon dioxide in the storage tank (17) into the interior of the first aeration pipe (19) and aerate the sewage in the reaction chamber (3) so that the purified carbon dioxide is mixed with the sewage, thereby consuming the chemoautotrophic nitrifying bacteria in the nitrification reaction as a "carbon source" in the biological denitrification process of sewage treatment.

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