CN219860674U - A wastewater degradation treatment device - Google Patents

Abstract

The utility model relates to the technical field of wastewater treatment and discloses a wastewater degradation treatment device, which comprises a box body, wherein the top of the box body is fixedly connected with a mounting sleeve, the outer wall of the box body is fixedly connected with a U-shaped pipe, the outer wall of the U-shaped pipe is fixedly connected with a connecting pipe, a booster pump II and a booster pump I are sequentially arranged on the outer wall of the U-shaped pipe from top to bottom, the mounting plate is fixedly connected with the inner walls of the U-shaped pipe and the connecting pipe, the middle part of the mounting plate is fixedly connected with a nozzle, the middle part of the mounting sleeve is rotationally connected with a rotating rod I, and the outer wall of the rotating rod I is fixedly connected with a plurality of fixing plates. According to the utility model, impurities such as dirt and the like mixed in the sewage to be degraded can be filtered out in advance, and meanwhile, the sewage and the degradation agent are automatically stirred when the sewage is degraded, so that the sewage is in a flowing state in the box body, the degradation efficiency is effectively improved, and meanwhile, the dirt adhered to the inner wall of the box body can be automatically cleaned.

Description

A wastewater degradation treatment device

Technical field

The utility model relates to the technical field of wastewater treatment, and in particular to a wastewater degradation treatment device.

Background technique

Wastewater treatment refers to the process of treating and purifying generated wastewater to reduce its harm to the environment and health and make it meet discharge standards or reuse requirements. Wastewater can come from various sources, including industrial production, urban drainage, agriculture and animal husbandry. These wastewaters will have a negative impact on the environment. Wastewater discharge without treatment will pollute water resources, which is one of the necessary resources for people. , so the degradation treatment of wastewater is one of the most important tasks. Currently, wastewater degradation treatment devices are often used to help degrade wastewater and achieve the purpose of protecting water resources.

However, after the wastewater degradation treatment device in the prior art is used, because the pollutants are relatively turbid, after the degradation treatment is completed, impurities such as dirt will remain inside the equipment and accumulate for a long time, which can easily affect the degradation treatment effect of the device. Therefore, After the wastewater degradation treatment is completed, it is necessary to manually clean the dirt and other impurities on the inner wall of the device regularly to ensure the normal operation of the device. Therefore, a wastewater degradation treatment device is proposed to address the above shortcomings.

Utility model content

In order to make up for the above shortcomings, the present invention provides a wastewater degradation treatment device, aiming to improve the problem in the prior art that after wastewater degradation treatment, manual cleaning of dirt and other impurities stuck on the inner wall of the device is required on a regular basis.

In order to achieve the above purpose, the present utility model adopts the following technical solutions:

A wastewater degradation treatment device includes a box body, the top of the box body is fixedly connected with an installation sleeve, the outer wall of the box body is fixedly connected with a U-shaped pipe, and the outer wall of the U-shaped pipe is fixedly connected with a connecting pipe, so The outer wall of the U-shaped pipe is provided with a booster pump two and a booster pump one from top to bottom. The inner walls of the U-shaped pipe and the connecting pipe are fixedly connected with a mounting plate, and the middle part of the mounting plate is fixedly connected with a nozzle. A filter plate is fixedly connected to the bottom inner wall of the U-shaped tube, a rotating rod is rotatably connected to the middle part of the installation sleeve, and a plurality of fixing plates are fixedly connected to the outer wall of the rotating rod, and the fixing plates are close to the box. A scraper is fixedly connected to one side of the inner wall. The bottom end of the rotating rod is fixedly connected to a connecting rod. The outer wall of the connecting rod is fixedly connected to multiple sets of installation rods. The installation rods are fixed close to the inner wall of the box. There is a scraper two connected, the bottom end of the connecting rod one is fixedly connected with a dredging component, the outer wall of the box is fixedly connected with a communicating tube, the inner wall of the communicating tube is provided with an anti-blocking component, and the outer wall of the communicating tube Fixed connection with cleaning components.

Through the above technical solution, the degrading sewage inside the box is pumped into the U-shaped pipe and the connecting pipe through the booster pump one and the booster pump two, so that the sewage is squeezed out by the booster pump one and the two booster pumps. Press down and enter the inside of the nozzle, and then spray out from the nozzle towards the fixed plate. Under the pressure of the sewage spray, the multiple fixed plates drive the rotating rod to rotate inside the box, and then drive the connecting rod to rotate inside the box. The inside of the box rotates, thereby driving the installation rod to rotate inside the box, and then drives the scraper pair to scrape the inner wall of the box. At the same time, the fixed plate drives the scraper pair to clean the inner wall of the box, thereby preventing dirt from sticking. On the inner wall of the box, the sticky dirt on the inner wall of the box can be automatically cleaned to avoid the trouble of manual cleaning after the degradation is completed.

Further, the dredging assembly includes a connecting rod two, the top end of the connecting rod two is fixedly connected to the bottom end of the connecting rod one, and the outer wall of the connecting rod two is fixedly connected with a spiral blade.

Through the above technical solution, the connecting rod 2 is driven by the connecting rod 1 to rotate inside the discharge pipe, and then drives the spiral blade to rotate inside the discharge pipe, thereby preventing the degradation of sewage and the degradation process. When the dirt generated in the discharge device is blocked in the discharge pipe, it affects the normal discharge of degraded sewage.

Further, the anti-blocking assembly includes a filter plate 2, the outer wall of the filter plate 2 is fixedly connected to the inner wall of the communication pipe, the inner wall of the communication pipe is fixedly connected to a mounting frame, and the middle part of the mounting frame is rotatably connected to a rotor. Rod two, one end of the rotating rod two is fixedly connected with an impeller, and the other end of the rotating rod two is fixedly connected with a plurality of brushes. The left side of the impeller is arranged on the right side of the filter plate two. The brushes The right side of is set on the left side of filter plate two.

Through the above technical solution, when there is water flowing inside the connecting pipe, driven by the water flow, the impeller will rotate inside the connecting pipe, thereby driving the rotating rod 2 to rotate in the middle of the mounting frame and the filter plate 2, and then Drive multiple brushes to rotate along the outer wall of the second filter plate inside the connecting pipe, thereby cleaning the dirt and other impurities on the outer wall of the second filter plate to avoid clogging of the second filter plate and affecting the subsequent preliminary filtration of sewage. .

Further, the cleaning assembly includes a water inlet pipe, the bottom end of the water inlet pipe is fixedly connected to the top of the outer wall of the communication pipe, an electric valve three is provided in the middle of the water inlet pipe, and the bottom end of the outer wall of the communication pipe is fixedly connected to A sewage pipe, the top of the sewage pipe is arranged on the left side of the filter plate 2, an electric valve 2 is arranged inside the communication pipe, and the left side of the electric valve 2 is arranged on the right side of the impeller.

Through the above technical solution, by connecting the water inlet pipe to the external water pipe, under the control of the electric valve three, the clean water can enter the inside of the connecting pipe, so that under the action of the electric valve two, the clean water can be prevented from entering the inside of the box. At this time, under the impact of clean water entering the inside of the connecting pipe, the dirt and other impurities inside the connecting pipe are flushed into the inside of the sewage pipe and discharged from the sewage pipe, thereby preventing excessive accumulation of dirt and other impurities inside the connecting pipe, which will affect the follow-up Circulation of sewage inside the connecting pipe.

Further, the bottom of the box is fixedly connected to a discharge pipe, and the outer wall of the box is fixedly connected to a support base.

Through the above technical solution, the discharge pipe can discharge dirt and other impurities generated during the degradation process as well as degraded sewage from the inside of the box, and at the same time, the support base can provide support and stability for the device.

Further, the outer part of the spiral blade is arranged inside the discharge pipe.

Through the above technical solution, when the spiral blade rotates inside the discharge pipe, the dirt and other impurities inside the discharge pipe can be cleared, thereby preventing dirt and other impurities from clogging the inside of the discharge pipe and affecting the subsequent construction inside the discharge pipe. emission.

Further, an electric valve 1 is provided inside the communication pipe.

Through the above technical solution, the electric valve can control the entry of sewage into the interior of the connecting pipe.

Further, the right side of the electric valve one is arranged on the left side of the filter plate two.

Through the above technical solution, the electric valve one can control the sewage to enter the inside of the communication pipe, so that it will definitely pass through the filter plate two.

The utility model has the following beneficial effects:

1. In this utility model, the sewage flows inside the connecting pipe, and with the cooperation of the filter plate 2, the mounting frame, the rotating rod 2, the impeller and the brush, the dirt and other impurities contained in the sewage to be degraded can be Part of it is filtered out in advance to avoid excessive dirt and other impurities generated by degradation plus pre-existing dirt and other impurities in subsequent degradation filtration, which will affect subsequent degradation efficiency and emission efficiency.

2. In this utility model, by starting the booster pump one and the booster pump two, the U-shaped pipe, connecting pipe, installation plate, nozzle, filter plate one, installation sleeve, rotating rod one, fixed plate, scraper one, With the cooperation of the connecting rod 1, the installation rod and the scraper 2, the wastewater and the degrading agent are automatically stirred during the degradation treatment of the wastewater, so that the sewage is in a flowing state inside the box, which effectively improves the degradation efficiency and also can Automatically cleans the sticky dirt on the inner wall of the box, avoiding the trouble of subsequent manual cleaning, which can effectively improve the degradation effect and increase the practicality of the device.

Description of the drawings

Figure 1 is a perspective view of a wastewater degradation treatment device proposed by the utility model;

Figure 2 is a schematic diagram of the internal structure of the box of a wastewater degradation treatment device proposed by the utility model;

Figure 3 is a schematic structural diagram of a spiral blade of a wastewater degradation treatment device proposed by the utility model;

Figure 4 is a top view of the interior of the box of a wastewater degradation treatment device proposed by the utility model;

Figure 5 is a schematic structural diagram of a scraper of a wastewater degradation treatment device proposed by the utility model.

illustration:

1. Box; 2. U-shaped pipe; 3. Filter plate 1; 4. Booster pump 1; 5. Connecting pipe; 6. Booster pump 2; 7. Installation plate; 8. Nozzle; 9. Installation sleeve; 10. Rotary rod one; 11. Fixed plate; 12. Scraper one; 13. Connecting rod one; 14. Installation rod; 15. Scraper two; 16. Discharge pipe; 17. Connecting rod two; 18. Spiral blade ; 19. Connecting pipe; 20. Filter plate 2; 21. Mounting frame; 22. Rotating rod 2; 23. Impeller; 24. Brush; 25. Electric valve 1; 26. Electric valve 2; 27. Water inlet pipe; 28 , Electric valve three; 29. Drainage pipe; 30. Support seat.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

Referring to Figures 1-2, an embodiment of the utility model is provided: a wastewater degradation treatment device, including a box 1, the top of the box 1 is fixedly connected with an installation sleeve 9, and the outer wall of the box 1 is fixedly connected with a U-shaped Pipe 2, the U-shaped pipe can facilitate the sewage inside the box 1 to return to the inside of the box 1 for circulation, strengthen the effect of the fusion of the degradation agent and the sewage, thereby improving the degradation efficiency. The outer wall of the U-shaped pipe 2 is fixedly connected with The connecting pipe 5 can bisect a part of the sewage flowing inside the U-shaped pipe, so that the sewage can be discharged from two places when circulating. The outer wall of the U-shaped pipe 2 is provided with two booster pumps in sequence from top to bottom. 6 and booster pump 1 and 4. Booster pump 1 and pressure increase pump 2 can allow the sewage inside the box 1 to enter the U-shaped pipe and the connecting pipe 5, and at the same time increase the pressure of the sewage flow. The U-shaped pipe 2 and The inner wall of the connecting pipe 5 is fixedly connected with a mounting plate 7, and the middle part of the mounting plate 7 is fixedly connected with a nozzle 8. The nozzle 8 can spray pressurized sewage from the inside of the U-shaped pipe and the connecting pipe 5. At the same time, the nozzle 8 is installed The angle of installation on the plate 7 is 30°. The bottom inner wall of the U-shaped pipe 2 is fixedly connected to a filter plate 3. The filter plate 3 can prevent dirt and other impurities from entering the inside of the U-shaped pipe 2. The outer wall of the box 1 is fixedly connected. There is a support base 30, which increases the stability of the device during use.

Referring to Figure 2-4, the middle part of the installation sleeve 9 is rotatably connected to a rotating rod 10. The outer wall of the rotating rod 10 is fixedly connected to a plurality of fixed plates 11. The fixed plates 11 can be moved under the impact of the sewage sprayed from the nozzle 8. Rotates inside the box 1, thereby driving the rotating rod 10 to rotate inside the box 1. A scraper 12 is fixedly connected to the side of the fixed plate 11 close to the inner wall of the box 1. The scraper 12 is on the fixed plate 11. Under the guidance of The connecting rod 13 rotates inside the box 1 driven by the rotating rod 10. The outer wall of the connecting rod 13 is fixedly connected with multiple sets of installation rods 14. The installation rods 14 are on the connecting rod 13. Driven by the installation rod 14, it rotates inside the box 1. A scraper 15 is fixedly connected to the side of the installation rod 14 close to the inner wall of the box 1. The scraper 15 is driven by the installation rod 14 to scrape the inner wall of the box 1. , thereby automatically cleaning the sticky dirt on the inner wall of the box 1, avoiding the trouble of subsequent manual cleaning, effectively improving the degradation effect, and increasing the practicality of the device.

Referring to Figure 2-3, the bottom end of connecting rod one 13 is fixedly connected with a dredging assembly. The dredging assembly includes connecting rod two 17. The top end of connecting rod two 17 is fixedly connected to the bottom end of connecting rod one 13. Connecting rod two 17 rotates Driven by rod one 10, it rotates. The outer wall of connecting rod two 17 is fixedly connected with a spiral blade 18. The spiral blade 18 is driven by connecting rod two 17 and rotates to remove the discharged degraded sewage, dirt and other impurities. For dredging, to avoid clogging during discharge and affecting the discharge efficiency, a discharge pipe 16 is fixedly connected to the bottom of the box 1, and the outside of the spiral blade 18 is arranged inside the discharge pipe 16.

Referring to Figures 2 and 5, the outer wall of the box 1 is fixedly connected to a communication pipe 19, the inner wall of the communication pipe 19 is provided with an anti-blocking component, the outer wall of the communication pipe 19 is fixedly connected to a cleaning component, and the inside of the communication pipe 19 is provided with an electric valve. 25. The electric valve 25 can control the entry of sewage into the inside of the connecting pipe 19.

The anti-blocking component includes a second filter plate 20. The outer wall of the second filter plate 20 is fixedly connected to the inner wall of the communication pipe 19. The second filter plate 20 can filter the sewage entering the interior of the communication pipe 19, so that the inclusions in the sewage to be degraded can be filtered. Part of the dirt and other impurities can be filtered out in advance, thereby avoiding the subsequent degradation and filtration. The dirt and other impurities generated by degradation plus the pre-existing dirt and other impurities are present too much, which affects the subsequent degradation efficiency and emission efficiency. The connecting pipe 19 A mounting bracket 21 is fixedly connected to the inner wall of the mounting bracket 21. A rotating rod 22 is rotatably connected to the middle part of the mounting bracket 21. Under the support of the mounting bracket 21, the rotating rod 22 can rotate stably inside the communicating tube 19. The rotating rod 22 An impeller 23 is fixedly connected to one end. The impeller 23 automatically rotates under the impact of the water flow inside the communication pipe 19, thereby driving the second rotating rod 22 to rotate. The other end of the second rotating rod 22 is fixedly connected with a plurality of brushes 24, and the plurality of brushes 24 are fixedly connected to the other end of the rotating rod 22. Driven by the rotating rod 22, the brush 24 will rotate along one side of the filter plate 20, thereby preventing the filter plate 20 from being blocked and affecting the subsequent circulation of sewage. The left side of the impeller 23 is arranged on the filter plate 2. 20, the right side of the brush 24 is arranged on the left side of the filter plate 20.

The cleaning assembly includes a water inlet pipe 27. The bottom end of the water inlet pipe 27 is fixedly connected to the top of the outer wall of the communication pipe 19. The water inlet pipe 27 is connected to the external water pipe, so that clean water enters the inside of the communication pipe 19 through the water inlet pipe 27, and then the communication pipe 19 Internal dirt and other impurities are flushed. An electric valve 28 is provided in the middle of the water inlet pipe 27. The electric valve 28 can control external clean water to enter the inside of the communication pipe 19. The bottom end of the outer wall of the communication pipe 19 is fixedly connected to a sewage discharge pipe 29. The sewage pipe 29 allows the dirt and other impurities washed by clean water to be discharged from the inside of the communication pipe 19, thereby ensuring that the second filter plate 20 is not blocked, thereby improving the filtration effect. The top of the sewage pipe 29 is arranged on the left side of the second filter plate 20. The connecting pipe 19 is provided with an electric valve 26 inside. The electric valve 26 can prevent clean water from entering the inside of the box 1 at will, making the flushing effect poor. The left side of the electric valve 26 is arranged on the right side of the impeller 23. The right side of electric valve one 25 is arranged on the left side of filter plate two 20.

Working principle: When degrading sewage, first connect the connecting pipe 19 to the sewage equipment in the prior art, and then open the electric valve 125 and the electric valve 226 so that the connecting pipe 19 is internally connected, and the sewage can pass through the connecting pipe. 19 enters the inside of the box 1, and when the sewage flows inside the communication pipe 19, the impeller 23 can be driven to rotate inside the communication pipe 19, and then the rotating rod 22 can be driven to rotate in the middle of the mounting frame 21, thereby driving the brush. 24 is rotated to clean the surface of the filter plate 20, so that when the filter plate 20 filters the dirt and other impurities in the sewage passing through the communication pipe 19, the dirt and other impurities generated by the filtration are on the brush 24 After cleaning, it will not accumulate on one side of the second filter plate 20. Blocking the second filter plate 20 will affect the circulation of sewage inside the subsequent connecting pipe 19, so that the existing dirt and other impurities contained in the sewage will be filtered out first, so that The pre-filtered sewage enters the inside of the box 1. At this time, the booster pump 14 and the booster pump 26 are started, so that the sewage inside the box 1 is pumped into the U-shaped pipe 2 and the connecting pipe 5. , under the action of booster pump one 4 and booster pump two 6, the sewage inside the U-shaped pipe 2 and the connecting pipe 5 is pressurized to the nozzle 8 inside the U-shaped pipe 2 and the connecting pipe 5. It is sprayed onto a plurality of fixed plates 11 inside the box 1, so that under the impact of the sewage discharge, the multiple fixed plates 11 can drive the rotating rod 10 to automatically rotate inside the box 1, thereby driving the connecting rod. One 13 and two connecting rods 17 rotate inside the box 1 and the discharge pipe 16, so that the degraded sewage flows inside the box 1 and is in a flowing state, which is conducive to its integration with the degradation agent. Thereby improving the degradation efficiency, at the same time, under the rotation of the plurality of fixed plates 11, the scraper 12 can be driven to scrape the inner wall of the box 1, thereby avoiding the dirt generated during the degradation process from sticking to the inner wall of the box 1. At the same time, driven by the connecting rod one 13, the installation rod 14 can drive the scraper two 15 to scrape the bottom inner wall of the box 1, which can also prevent the dirt generated during the sticky degradation process of the bottom inner wall. After the degradation is completed, it can Open the discharge pipe 16 so that the degraded sewage flows out along the discharge pipe 16. At the same time, driven by the connecting rod 17, the spiral blade 18 rotates inside the discharge pipe 16 to ensure that dirt will not block the discharge pipe. Inside the pipe 16, at this time, the dirt generated by degradation and the degraded sewage flow into the inside of the filtering device along the discharge pipe 16, so that the dirt generated by degradation and the degraded sewage are separated, which facilitates the discharge of the degraded sewage. At the same time, You can close the electric valve one 25 and the electric valve two 26, connect the water inlet pipe 27 to the external water pipe, so that clean water can enter the inside of the communication pipe 19, and at the same time open the sewage pipe 29, so that the clean water can enter the inside of the communication pipe 19, and connect the communication pipe 19 The dirt generated by the filter plate 20 is waiting for the impurities to rush into the inside of the sewage pipe 29, so that too much impurities will not accumulate inside the connecting pipe 19, causing blockage inside and affecting subsequent sewage treatment. Open the electric valve two 26 to allow clean water to enter the inside of the box 1. At this time, the above operation can be repeated, so that the booster pump one 4 and the booster pump two 6 pump the clean water inside the box 1 into the U-shaped pipe 2 and the inside of the connecting pipe 5, and then drive the scraper one 12 and the scraper two 15 to scrape and clean the inner wall of the box 1 again. After the cleaning is completed, the discharge pipe 16 is opened, so that the cleaned sewage flows from the discharge pipe 16 discharged everywhere.

Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it is still possible to modify the technical solutions recorded in the foregoing embodiments, or to perform equivalent substitutions on some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model, All should be included in the protection scope of this utility model.

Claims (8)

1. The utility model provides a wastewater degradation processing apparatus, includes box (1), its characterized in that: the utility model discloses a device for dredging a tank, which comprises a tank body (1), a mounting sleeve (9) fixedly connected with the top of the tank body (1), a U-shaped pipe (2) fixedly connected with the outer wall of the tank body (1), a connecting pipe (5) fixedly connected with the outer wall of the U-shaped pipe (2), a booster pump (6) and a booster pump (4) are sequentially arranged on the outer wall of the U-shaped pipe (2) from top to bottom, a mounting plate (7) is fixedly connected with the inner wall of the U-shaped pipe (2), a nozzle (8) is fixedly connected with the middle part of the mounting plate (7), a first rotating rod (10) is rotationally connected with the middle part of the mounting sleeve (9), a plurality of fixed plates (11) are fixedly connected with the outer wall of the first rotating rod (10), a first scraping plate (12) is fixedly connected with one side of the inner wall of the tank body (1), a first connecting rod (13) is fixedly connected with the bottom of the first connecting rod (13), a plurality of groups of mounting rods (14) are fixedly connected with a plurality of connecting rods (14), a second connecting rod (19) are fixedly connected with one side of the bottom end of the connecting rod (19) of the tank body (1), the inner wall of communicating pipe (19) is provided with prevents stifled subassembly, the outer wall fixedly connected with clearance subassembly of communicating pipe (19).

2. The wastewater degradation treatment device according to claim 1, wherein: the dredging assembly comprises a second connecting rod (17), the top end of the second connecting rod (17) is fixedly connected to the bottom end of the first connecting rod (13), and a spiral blade (18) is fixedly connected to the outer wall of the second connecting rod (17).

3. The wastewater degradation treatment device according to claim 1, wherein: anti-blocking assembly includes filter two (20), the outer wall fixed connection of filter two (20) is at the inner wall of communicating pipe (19), the inner wall fixedly connected with mounting bracket (21) of communicating pipe (19), the middle part rotation of mounting bracket (21) is connected with bull stick two (22), the one end fixedly connected with impeller (23) of bull stick two (22), the other end fixedly connected with of bull stick two (22) a plurality of brush (24), the left side setting of impeller (23) is on the right side of filter two (20), the right side setting of brush (24) is on the left side of filter two (20).

4. A wastewater degradation treatment apparatus according to claim 3, wherein: the cleaning assembly comprises a water inlet pipe (27), the bottom end of the water inlet pipe (27) is fixedly connected to the top end of the outer wall of the communicating pipe (19), an electric valve III (28) is arranged in the middle of the water inlet pipe (27), a drain pipe (29) is fixedly connected to the bottom end of the outer wall of the communicating pipe (19), the top of the drain pipe (29) is arranged on the left side of a filter plate II (20), an electric valve II (26) is arranged in the communicating pipe (19), and the left side of the electric valve II (26) is arranged on the right side of the impeller (23).

5. The wastewater degradation treatment device according to claim 1, wherein: the bottom of the box body (1) is fixedly connected with a discharge pipe (16), and the outer wall of the box body (1) is fixedly connected with a supporting seat (30).

6. A wastewater degradation treatment apparatus according to claim 2, wherein: the outer part of the spiral blade (18) is arranged in the discharge pipe (16).

7. The wastewater degradation treatment device according to claim 1, wherein: an electric valve I (25) is arranged in the communicating pipe (19).

8. The wastewater degradation treatment device according to claim 7, wherein: the right side of the electric valve I (25) is arranged on the left side of the filter plate II (20).