Multistage purification equipment for black and odorous water treatment

Abstract

The present application relates to water body purification equipment field, a kind of multistage purification equipment for black and odorous water treatment, including multiple purification groups, purification group includes sewage input pipe and sewage output pipe, multistage purification structure is connected between sewage input pipe and sewage output pipe, the output end of sewage input pipe is equipped with independent output pipe and total output pipe by tee solenoid valve;Multistage purification structure includes sealed shell, rotationally connected with adjusting disc in sealed shell, matched with servo motor of adjusting disc is installed on sealed shell, adjusting disc is equipped with multiple evenly distributed mounting holes, filter core is installed in mounting hole;The upper and lower ends of sealed shell are respectively equipped with auxiliary unloading structure and unloading structure matched with filter core;Realize the function switching of single filter core, multiple filter cores filtering simultaneously or multistage filter core step-by-step filtering according to the need of purification work, and monitor output water quality in purification process, so as to quickly switch filter core with reduced filtering effect, and filter core unloading process is automatically carried out.

Description

TECHNICAL FIELD

[0001] The present application relates to a multi-stage purification equipment for black and odorous water treatment, in particular to a multi-stage purification equipment for black and odorous water treatment applied in the field of water purification equipment. BACKGROUND

[0002] The existing purification equipment for black and odorous water treatment is mainly based on the combination of physical, chemical and biological technologies to achieve effective removal of pollutants in water. Physical technology includes sedimentation, filtration and adsorption, etc., which removes suspended solids and part of dissolved pollutants in water through physical methods.

[0003] At present, for the treatment of black and odorous water, a combination of multiple technologies is usually adopted to achieve better purification effect. These devices and methods need to be selected and optimized according to the specific water quality conditions and treatment goals in actual application to ensure the treatment effect and economy.

[0004] In order to solve the problem of black and odorous water treatment efficiency, some treatment equipment in the market adopts the design of ultrasonic vibration device, which has a certain market share.

[0005] Chinese invention patent CN115159666A specification discloses a black and odorous water treatment device. It includes gas path, water path, high-pressure dissolved gas tank, hollow fiber membrane assembly is installed in the high-pressure dissolved gas tank, or vortex tube, high-voltage electrode is arranged on the gas path pipeline; the high-pressure dissolved gas tank is connected with the gas path pipeline and the water path pipeline respectively; the high-pressure dissolved gas tank is connected with the ultrasonic vibration device through the pipeline, the ultrasonic vibration device is connected with the dissolved oxygen water outlet pipeline, and the dissolved oxygen water outlet pipeline is connected with the diffusion pipe. The invention adopts hollow fiber membrane, vortex tube and ultrasonic cavitation to prepare high-concentration dissolved oxygen water, injects the high-concentration dissolved oxygen water into the black and odorous water to be treated through the cyclone diffusion pipe, rapidly and uniformly improves the solubility of water oxygen, improves the microbial activity, and reduces the pollution index.

[0006] The existing product has a fixed structure of water treatment purification equipment, which is not convenient to adjust according to the change of water quality and treatment demand, and the filter element in the purification equipment is not convenient to replace and maintain, and it is not easy to replace in time when it is saturated or blocked. SUMMARY

[0007] In view of the above existing technology, the technical problem to be solved by the present application is that the existing product has a fixed structure of water treatment purification equipment, which is not convenient to adjust according to the change of water quality and treatment demand, and the filter element in the purification equipment is not convenient to replace and maintain, and it is not easy to replace in time when it is saturated or blocked.

[0008] To solve the above problems, the application provides a multi-stage purification equipment for black and odorous water treatment, which comprises a plurality of purification groups, a sewage input pipe and a sewage output pipe, a multi-stage purification structure connected between the sewage input pipe and the sewage output pipe, an independent output pipe and a total output pipe installed at the output end of the sewage input pipe through a three-way electromagnetic valve;

[0009] The multi-stage purification structure comprises a sealed shell, an adjusting disc rotatably connected in the sealed shell, a servo motor installed on the sealed shell and matched with the adjusting disc, a plurality of uniformly distributed mounting holes formed in the adjusting disc, and a filter core installed in the mounting hole; the filter core comprises a pair of cover plates, a filter cylinder fixedly connected between the pair of cover plates, a partition ring fixedly connected in the filter cylinder, a sealing plug clamped in the middle part of the partition ring, a guide pipe inserted in one of the cover plates, a pair of brackets fixedly connected at the top end of the cover plate, and a clamping plate matched with the bracket and installed at the opening of the mounting hole;

[0010] The upper and lower ends of the sealed shell are respectively provided with an auxiliary dismounting structure and a dismounting structure matched with the filter core; the auxiliary dismounting structure comprises a stepping motor symmetrically arranged with the dismounting structure, an electric push rod rotatably connected on the sealed shell, a push plate matched with the filter core and rotatably connected at the extension end of the electric push rod, and a transmission belt connected between the stepping motor and the electric push rod;

[0011] The dismounting structure comprises a fixed pipe fixedly connected with the sealed shell, a movable plug inserted in the fixed pipe, a gas cylinder installed at the bottom end of the movable plug, a dismounting hole matched with the filter core formed in the lower part of the side wall of the fixed pipe, a cleaning pool arranged between the plurality of purification groups, and a guide rail matched with the position of the dismounting structure and installed on the cleaning pool.

[0012] In the multi-stage purification equipment for black and odorous water treatment, the filter core can be quickly replaced, and one or more filter cores can be used for purification work.

[0013] As a further improvement of the application, a liquid storage cavity is formed in the mounting hole, and a liquid level sensor is installed in the liquid storage cavity; when the filter core is in normal operation, the liquid level in the liquid storage cavity is maintained within a set height range;

[0014] When the liquid level in the liquid storage cavity is higher than the set value, it is determined that the filter core at this position needs to be replaced.

[0015] As a further improvement of the application, a flow guide hole is formed between the adjacent two mounting holes, and the flow guide hole is located at the upper end position of the filter core; a stop valve is installed in the flow guide hole.

[0016] As a further improvement of the present application, the output end of the sewage input pipe is provided with an independent output pipe and a total output pipe through a three-way electromagnetic valve, the independent output pipe comprises a shunt pipe mounted on the sealing shell, one end of the shunt pipe in the sealing shell is sleeved with a butt joint pipe, an electric telescopic rod connected with the butt joint pipe is mounted on the sealing shell, and the output end of the total output pipe is located at the upper part of the side end of the sealing shell.

[0017] As a further improvement of the present application, a butt joint groove is formed on the cover plate, and a butt joint block matched with the butt joint groove is mounted on the push plate and the movable plug.

[0018] As a further improvement of the present application, a flow guide pipe is connected between the cleaning pool and the sewage input pipe, a liquid pump is connected to the flow guide pipe, a plurality of branch pipes connected with the plurality of sewage input pipes are connected to the flow guide pipe, and a water quality detection device is mounted in the cleaning pool.

[0019] As a further improvement of the present application, an electric gate for closing the opening of the fixed pipe is rotatably connected in the sealing shell, and when the electric gate is opened, the filter element separated from the adjusting disc can fall into the fixed pipe.

[0020] As a further improvement of the present application, the purification auxiliary system further comprises a processor, and the processor is connected with a control module, a data processing module and a monitoring module;

[0021] The control module is used for controlling the work of the servo motor, the stepping motor, the air cylinder, the stop valve and the three-way electromagnetic valve;

[0022] The monitoring module is used for collecting monitoring data, and the monitoring data includes water quality and flow rate at the sewage input pipe and the sewage output pipe and monitoring data of the liquid level sensor, and water quality detection sensors are mounted in the sewage input pipe and the sewage output pipe;

[0023] The data processing module is used for processing and analyzing the monitoring data, and judging whether the filter element needs to be replaced according to the data analysis result.

[0024] As a further improvement of the present application, when the filter element is installed, the movable plug on the loading and unloading structure supports the filter element after the filter element is installed into the loading and unloading hole, the air cylinder is controlled to work, the filter element is pushed into the installation hole and matched with the clamping plate position, then the electric push rod on the auxiliary loading and unloading structure works, the push plate is clamped with the top end of the filter element, the stepping motor drives the electric push rod to rotate, and then the filter element is rotated by a set angle, and the clamping plate is clamped into the bracket on the cover plate.

[0025] In summary, the present application realizes the function switching of single filter element, multiple filter elements simultaneous filtering or multi-stage filter element step-by-step filtering according to the needs of purification work, monitors the output water quality during the purification process, quickly switches the filter element with reduced filtering effect, and automatically performs the filter element unloading process, which is easy to save labor. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 Purification group of the first and second embodiments of the present application;

[0027] Figure 2 Purification group of the first and second embodiments of the present application;

[0028] Figure 3 For Figure 2 Structure diagram at A in the middle;

[0029] Figure 4 Partial sectional view of the guide pipe in the filter core of the second embodiment of the present application when installed in the upper cover plate;

[0030] Figure 5 Adjusting disc of the first and second embodiments of the present application;

[0031] Figure 6 Water flow path diagram when two filter cores of the second embodiment of the present application are used for multi-stage filtration;

[0032] Figure 7 Multiple purification group installation diagram of the first and second embodiments of the present application;

[0033] Figure 8 Cover plate of the first and second embodiments of the present application.

[0034] Explanation of figure numbers:

[0035] 1 sewage input pipe, 11 independent output pipe, 12 total output pipe, 2 sewage output pipe, 3 sealed shell, 4 adjusting disc, 41 liquid storage cavity, 42 stop valve, 5 filter core, 51 cover plate, 52 guide pipe, 53 filter cartridge, 54 partition ring, 6 auxiliary mounting and dismounting structure, 61 stepper motor, 62 electric push rod, 63 push plate, 7 mounting and dismounting structure, 71 fixed pipe, 72 air cylinder, 73 movable plug, 8 cleaning pool. DETAILED DESCRIPTION

[0036] The three embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0037] First embodiment:

[0038] Figures 1-8 A multi-stage purification device for treating black and odorous water bodies is shown, which includes multiple purification groups, and each purification group includes a sewage input pipe 1 and a sewage output pipe 2, and a multi-stage purification structure is connected between the sewage input pipe 1 and the sewage output pipe 2;

[0039] The multi-stage purification structure comprises a sealed shell 3, an adjusting disc 4 rotatably connected in the sealed shell 3, a servo motor installed on the sealed shell 3 and matched with the adjusting disc 4, a plurality of mounting holes evenly distributed on the adjusting disc 4, and filter cartridges 5 installed in the mounting holes;

[0040] An auxiliary loading and unloading structure 6 and a loading and unloading structure 7 matched with the filter cartridges 5 are respectively installed on the upper and lower ends of the sealed shell 3; the auxiliary loading and unloading structure 6 comprises a stepper motor 61 symmetrically arranged with the loading and unloading structure 7, the stepper motor 61 is installed on the outer wall of the sealed shell 3, an electric push rod 62 is rotatably connected to the sealed shell 3, a push plate 63 matched with the filter cartridges 5 is rotatably connected to the extension end of the electric push rod 62, a transmission belt is connected between the power output end of the stepper motor 61 and the fixed end of the electric push rod 62, and the stepper motor 61 drives the electric push rod 62 to rotate when working;

[0041] The output end of the sewage input pipe 1 is provided with an independent output pipe 11 and a total output pipe 12 through a three-way electromagnetic valve, the independent output pipe 11 comprises a shunt pipe installed on the sealed shell 3, one end of the shunt pipe in the sealed shell 3 is sleeved with a butt joint pipe, an electric telescopic rod connected with the butt joint pipe is installed on the sealed shell 3, and the output end of the total output pipe 12 is located on the upper part of the side end of the sealed shell 3; when the electric telescopic rod works, the butt joint pipe is butt jointed with the input end of the filter cartridge 5, so that the sewage is only input into one filter cartridge 5, and when the total output pipe 12 inputs the sewage, the sewage flows into the space on the upper side of the adjusting disc 4, and since the input ends of the filter cartridges 5 are all in an open state, the sewage can enter all the filter cartridges 5 on the adjusting disc 4 at this time, so that the sewage output by the total output pipe 12 can be simultaneously filtered through the plurality of filter cartridges 5;

[0042] The loading and unloading structure 7 comprises a fixed pipe 71 fixedly connected with the sealed shell 3, a movable plug 73 inserted into the fixed pipe 71, an air cylinder 72 installed at the bottom end of the movable plug 73, a loading and unloading hole matched with the filter cartridges 5 formed in the lower part of the side wall of the fixed pipe 71, a cleaning pool 8 arranged between the plurality of purification groups, a guide rail matched with the position of the loading and unloading structure 7 installed on the cleaning pool 8, the input end of the guide rail communicated with the loading and unloading hole, an unloading electric push rod installed at the bottom end of the fixed pipe 71, the unloading electric push rod used for pushing the filter cartridges 5 at the loading and unloading hole into the guide rail, and the filter cartridges 5 sliding into the cleaning pool 8 along the guide rail; an electric gate rotatably connected in the sealed shell 3 used for closing the opening of the fixed pipe 71, and the filter cartridges 5 separated from the adjusting disc 4 can fall into the fixed pipe 71 when the electric gate is opened.

[0043] The cover plate 51 is provided with a butt joint groove, and the push plate 63 and the movable plug 73 are both provided with butt joint blocks matched with the butt joint groove.

[0044] The cleaning pool 8 is connected with the sewage input pipe 1 through a flow guide pipe, a liquid pump is connected to the flow guide pipe, a plurality of branch pipes are connected to the flow guide pipe and communicate with the plurality of sewage input pipes 1 respectively, and a water quality detection device can be installed in the cleaning pool 8. The water quality detection device is installed by a person skilled in the art using a suitable water quality detection device, and is used to detect the water quality in the cleaning pool 8. According to the water quality detection result in the cleaning pool 8, a person skilled in the art can select to input the water in the cleaning pool 8 into a suitable purification group.

[0045] During the operation of the present scheme, sewage is input into the sealed shell 3 through the sewage input pipe 1, and the sewage enters the sealed shell 3 and is filtered through the filter core 5 on the adjusting disc 4. During the operation of the filter core 5, the water level of the accumulated liquid at the filter core 5 or the water quality at the input and output end of the sealed shell 3 is monitored to determine whether the filter core 5 is saturated.

[0046] When the filter core 5 is saturated or the filtering efficiency of the filter core 5 decreases, the filter core 5 can be replaced. When the filter core 5 is replaced, the servo motor is first controlled to rotate the adjusting disc 4, so that the filter core 5 to be replaced is rotated to below the auxiliary mounting and dismounting structure 6. Then, the auxiliary mounting and dismounting structure 6 is operated, the push plate 63 is butted against the butt joint groove on the cover plate 51 by controlling the electric push rod 62 to extend, then the stepping motor 61 is operated to rotate the filter core 5 as a whole, until the bracket on the cover plate 51 is separated from the clamping plate at the mounting hole, and then the electric push rod 62 is further extended to push the filter core 5 downward until the filter core 5 is separated from the adjusting disc 4. During the pushing process, the movable plug 73 is driven to rise, and after the filter core 5 is separated from the adjusting disc 4, the filter core 5 falls onto the movable plug 73.

[0047] Then, the movable plug 73 is lowered to the initial position, and at this time, the filter core 5 can be pushed out of the mounting and dismounting hole by the electric push rod, so that the filter core 5 is unloaded into the cleaning pool 8. The filter core 5 falls into the cleaning pool 8 for soaking and pre-flushing, to clean the surface contamination. The cleaning sewage in the cleaning pool 8 can be input into the purification group through the flow guide pipe for purification treatment.

[0048] In the present embodiment, when the filter core is saturated, the adjusting disc 4 can be rotated to switch the filter core 5 used for filtering work, so that the saturated filter core 5 can be replaced in time, and the water purification efficiency is not easily reduced.

[0049] The second embodiment:

[0050] Figures 2-6 As shown, the mounting hole is provided with a liquid storage cavity 41, and a liquid level sensor is installed in the liquid storage cavity 41. When the filter core 5 is normally operated, the liquid level in the liquid storage cavity 41 is maintained within a set height range.

[0051] Optionally, when the liquid level in the liquid storage cavity 41 is higher than the set value, it is determined that the filter core 5 at this position needs to be replaced.

[0052] The flow guide hole is located at the upper end of the filter core 5, and a stop valve 42 is installed in the flow guide hole;

[0053] The filter core 5 includes a pair of cover plates 51, and the filter cylinder 53 is fixedly connected between the pair of cover plates 51. The filter cylinder 53 is fixedly connected with a partition ring 54, and the middle part of the partition ring 54 is connected with a sealing plug. One of the cover plates 51 is inserted with a guide pipe 52, and the upper and lower ends of the guide pipe 52 are provided with external threads. The middle part of the cover plate 51 is provided with a through hole, and the through hole is provided with internal threads matched with the external threads. The top end of the cover plate 51 is fixedly connected with a pair of brackets, and the opening of the mounting hole is provided with a clamping plate matched with the bracket.

[0054] The internal structure of the filter core 5 can be adjusted, and the guide pipe 52 can be installed on the upper or lower cover plate 51 through the external threads, for example, Figures 3-6 As shown, when the guide pipe 52 is installed on the upper cover plate 51, the middle part of the lower cover plate 51 is provided with a sealing plug. At this time, the sewage is input into the filter cylinder 53 from the upper side of the filter core 5 through the input guide pipe 52, and then enters the liquid storage cavity 41 through the filter cylinder 53. At this time, the filter core 5 serves as the sewage input end in the multi-stage filtration work.

[0055] When the guide pipe 52 is installed on the lower cover plate 51, the middle part of the partition ring 54 is connected with a sealing plug. At this time, the sewage from the liquid storage cavity 41 enters the filter cylinder 53 and is connected in the filter cylinder 53 until the liquid level is higher than the upper end of the guide pipe 52 in it, so that the sewage filtered through the filter cylinder 53 enters the guide pipe 52 and is then discharged to the lower side of the filter core 5.

[0056] When the stop valve 42 is opened, the two adjacent mounting holes are communicated, so that the two adjacent filter cores 5 can work cooperatively. At this time, the independent output pipe 11 is communicated with one filter core 5, and the guide pipes 52 of the filter cores 5 in the two mounting holes are respectively opened at the upper end and the lower end.

[0057] The water flow passes through the plurality of filter cores in sequence to realize the multi-stage filtration of the plurality of filter cores 5 installed on the adjusting disc 4. It should be noted that the independent output pipe 11 is used for sewage input when the embodiment is in operation.

[0058] When the plurality of filter cores 5 are connected by opening the stop valve 42, and the structure of the installed filter core 5 is adjusted, the plurality of filter cores 5 in the adjusting disc 4 work cooperatively to realize the classification treatment of the input water flow by the filter cores 5 with different types of filtering materials or different pore sizes.

[0059] The third embodiment:

[0060] The purification auxiliary system includes a processor, and the processor is connected with a control module, a data processing module and a monitoring module.

[0061] The control module is used to control the servo motor, the stepping motor 61, the cylinder 72, the stop valve 42 and the three-way electromagnetic valve to work;

[0062] The monitoring module is used to collect monitoring data, which includes water quality and flow rate at the sewage input pipe 1 and the sewage output pipe 2 and monitoring data of the liquid level sensor, and water quality detection sensors are installed in the sewage input pipe 1 and the sewage output pipe 2;

[0063] The data processing module is used to process and analyze the monitoring data, and judge whether the filter element 5 needs to be replaced according to the data analysis result;

[0064] The purification auxiliary system realizes real-time monitoring of the sewage input pipe 1 and the sewage output pipe 2, ensures that the water quality meets the discharge standard, and the processor judges whether the filter element 5 needs to be replaced by analyzing the data provided by the monitoring module.

[0065] When the water quality detected at the sewage output pipe 2 is lower than the set value or the water flow rate drops below the set value, it is judged that the filtering efficiency of the corresponding filter element 5 is reduced or the filter element 5 is blocked, the processor issues an instruction to replace the filter element 5, and drives the filter element 5 to the auxiliary loading and unloading structure 6 for filter element 5 unloading through the control module; when the filter element 5 is docked with the docking pipe, the docking pipe needs to be reset before the filter element 5 is unloaded; when the total output pipe 12 is used for sewage input, the servo motor drives the adjusting disc 4 to rotate when the filter element 5 is unloaded, so that all the filter elements 5 are rotated to the auxiliary loading and unloading structure 6 for filter element 5 unloading;

[0066] The processor will record the frequency and time of replacing the filter element 5 to provide data support for subsequent maintenance and filter element replacement.

[0067] The design of the purification auxiliary system not only improves the automation degree of the purification equipment, but also ensures the stability and reliability of the purification process. Through real-time monitoring and intelligent control, the system can easily ensure that the filter element 5 is replaced in time, and the continuous stability of the water quality is ensured.

[0068] In summary, the present scheme realizes the function switching of single filter element, multiple filter elements filtering at the same time or multi-stage filter element filtering step by step according to the needs of purification work, and monitors the output water quality during the purification process, so as to quickly switch the filter element with reduced filtering effect, and the filter element unloading process is automatic, which is easy to save labor.

[0069] The above embodiments adopted by the present application are not limited to the scope of the present application, and various changes made within the knowledge of those skilled in the art without departing from the concept of the present application still fall within the protection scope of the present application.

Claims

1. A multi-stage purification device for treating black and odorous water, comprising a plurality of purification groups, each purification group comprising a sewage input pipe (1) and a sewage output pipe (2), characterized in that: The sewage input pipe (1) is connected with the sewage output pipe (2) with multi-stage purification structure; the output end of the sewage input pipe (1) is provided with independent output pipe (11) and total output pipe (12) through three-way electromagnetic valve; The multi-stage purification structure comprises a sealing shell (3), the sealing shell (3) is rotatably connected with an adjusting disc (4), a servo motor matched with the adjusting disc (4) is installed on the sealing shell (3), a plurality of uniformly distributed mounting holes are formed in the adjusting disc (4), and a filter element (5) is installed in the mounting hole; the filter element (5) comprises a pair of cover plates (51), a filter cylinder (53) is fixedly connected between the pair of cover plates (51), a partition ring (54) is fixedly connected in the filter cylinder (53), a sealing plug is clamped on the middle part of the partition ring (54), a guide pipe (52) is inserted into one of the cover plates (51), and a pair of brackets are fixedly connected to the top end of the cover plate (51); a clamping plate matched with the bracket is installed at the opening of the mounting hole. The upper and lower ends of the sealing shell (3) are respectively provided with an auxiliary dismounting structure (6) and a dismounting structure (7) matched with the filter element (5); the auxiliary dismounting structure (6) comprises a stepping motor (61) symmetrically arranged with the dismounting structure (7), an electric push rod (62) is rotatably connected to the sealing shell (3), a push plate (63) matched with the filter element (5) is rotatably connected to the telescopic end of the electric push rod (62), and a transmission belt is connected between the stepping motor (61) and the electric push rod (62). The dismounting structure (7) comprises a fixed pipe (71) fixedly connected with the sealing shell (3), a movable plug (73) is inserted into the fixed pipe (71), an air cylinder (72) is installed at the bottom end of the movable plug (73), a dismounting hole matched with the filter element (5) is formed in the lower side wall of the fixed pipe (71), a plurality of purification groups are provided with a cleaning pool (8), and a guide rail matched with the position of the dismounting structure (7) is installed on the cleaning pool (8). A liquid storage cavity (41) is formed in the mounting hole, a liquid level sensor is installed in the liquid storage cavity (41), and the liquid level in the liquid storage cavity (41) is kept within a set height range when the filter element (5) is normally working. When the liquid level in the liquid storage cavity (41) is higher than the set value, it is judged that the filter element (5) at this position needs to be replaced. A flow guide hole is formed between the adjacent two mounting holes, and the flow guide hole is located at the upper end position of the filter element (5), and a stop valve (42) is installed in the flow guide hole. The independent output pipe (11) comprises a shunt pipe installed on the sealing shell (3), one end of the shunt pipe in the sealing shell (3) is sleeved with a butt joint pipe, an electric telescopic rod connected with the butt joint pipe is installed on the sealing shell (3), and the output end of the total output pipe (12) is located on the upper part of the side end of the sealing shell (3).

2. The multi-stage purification device for black and odorous water treatment according to claim 1, characterized in that: The cover plate (51) is provided with a butt joint groove, and the push plate (63) and the movable plug (73) are both provided with a butt joint block matched with the butt joint groove. The cover plate (51) is provided with a butt joint groove, and the push plate (63) and the movable plug (73) are both provided with a butt joint block matched with the butt joint groove.

3. The multi-stage purification device for black and odorous water treatment according to claim 1, characterized in that: The cleaning tank (8) is connected with a flow guide pipe between the sewage input pipe (1), the flow guide pipe is connected with a liquid pump, and the flow guide pipe is connected with a plurality of branch pipes respectively communicating with a plurality of sewage input pipes (1).

4. The multi-stage purification device for black and odorous water treatment according to claim 1, characterized in that: The sealing shell (3) is rotatably connected with an electric gate for closing the opening of the fixed pipe (71), and when the electric gate is opened, the filter core (5) separated from the adjusting disc (4) can fall into the fixed pipe (71).

5. The multi-stage purification device for black and odorous water treatment according to claim 1, characterized in that: It also includes a purification auxiliary system, which includes a processor connected with a control module, a data processing module and a monitoring module; The control module is used for controlling the servo motor, the stepping motor (61), the cylinder (72), the stop valve (42) and the three-way electromagnetic valve; The monitoring module is used for collecting monitoring data, which includes water quality and flow rate at the sewage input pipe (1) and the sewage output pipe (2) and monitoring data of the liquid level sensor, and the sewage input pipe (1) and the sewage output pipe (2) are both installed with water quality detection sensors; The data processing module is used for processing and analyzing the monitoring data, and judging whether the filter core (5) needs to be replaced according to the data analysis result.

6. The multi-stage purification device for black and odorous water treatment according to claim 1, characterized in that: When the filter core (5) is installed, the movable plug (73) on the loading and unloading structure (7) supports the filter core (5) after the filter core (5) is installed into the loading and unloading hole, and then the cylinder (72) is controlled to work, so that the filter core (5) is pushed into the installation hole and matched with the clamping plate position, then the electric push rod (62) on the auxiliary loading and unloading structure (6) works, so that the push plate (63) is clamped with the top end of the filter core (5), the stepping motor (61) drives the electric push rod (62) to rotate, and then the filter core (5) is rotated by a set angle, so that the clamping plate is clamped into the bracket on the cover plate (51).

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