CN116531873A - Wet dust removal device and dust removal method for building engineering construction - Google Patents

Abstract

The invention discloses a wet dust removal device and a dust removal method for building engineering construction, and relates to the field of wet dust removal devices. A wet dust removal device for building engineering construction, comprising a base, a connecting pipe is connected to the base, a mounting frame is fixedly connected in the connecting pipe, a rotating shaft is rotatably connected in the mounting frame, and a rotating shaft is fixed on the rotating shaft Connected with turbine blades, it also includes: a chute, arranged in the connecting pipe; a plurality of sets of piston rods are ring-shaped and fixedly connected in the chute, and the piston rods are connected with an air outlet pipe; the filter screen, Connected to the telescopic end of the piston rod one, the filter screen is slidably connected in the chute; the present invention squeezes the piston rod one by gravity through the phenomenon that the filter screen will become heavier after accumulating impurities, so that the scraper rod one Close to the filter net, clean the filter net, avoid the wear and tear of the filter net due to long-term contact with the scraper bar, and facilitate the long-term use of the filter net and scraper bar.

Description

Wet dust removal device and dust removal method for construction engineering construction

technical field

The invention belongs to the technical field of wet dedusting devices, and in particular relates to a wet dedusting device and a dedusting method for building engineering construction.

Background technique

In the construction of construction projects, high-temperature production and construction on the construction site will produce a large amount of dust and dust, which will make the air turbid. Once it enters the mouth and nose of the construction workers, it will cause damage to the throat and lungs of the workers, which is not conducive to the continuation of the construction project. work, so it is necessary to use a dust removal device to purify the dust in the air.

The existing wet dust removal device for construction engineering construction, such as the patent application number CN202121333095.0, which is named as a practical patent for wet dust removal device for construction engineering construction, provides a wet dust removal device for construction engineering construction, which belongs to construction engineering In the field of dust removal device technology, to solve the problem that the sludge obtained by spraying and dust removal in the dust removal box is easy to block the filter and affect the dust removal efficiency. It includes a base, which is respectively equipped with a clean water tank and a waste water tank. The supporting frame of the group is connected with the dust removal box, and the two ends of the dust removal box are respectively provided with an air inlet pipe and an air outlet pipe, and an exhaust fan is arranged in the air inlet pipe, a water spray mechanism is arranged between the clean water tank and the dust removal box, and a return flow is provided in the dust removal box. The bottom of the dust removal box is provided with an installation pipe corresponding to the return port, the installation pipe is provided with a filter assembly, the return port is provided with an anti-clogging mechanism, the waste water tank is provided with a drainage pipe, and the drainage pipe is connected to the installation pipe through two sets of installation rings ; The turbine blades are hit by the returning mud water, and the turbine blades make the rotating shaft rotate, so that the scraper blades clean the surface of the filter plate to avoid clogging of the filter plate.

When the above-mentioned device is in use, since the scraper is always in contact with the filter plate, long-term contact will cause the wear of the filter screen and the scraper, and a certain gap will be formed between the two. At this time, the gap will affect the effect of the scraper on the filter The cleaning effect of the filter plate will affect the use of the filter plate. If it is serious, it will be blocked, and it needs to be replaced manually, which will cause some inconvenience in use.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a wet dust removal device that can overcome the above problems or at least partially solve the above problems.

In order to solve the above technical problems, the basic idea of the technical solution adopted by the present invention is: a wet dust removal device and dust removal method for construction engineering, including a base, a connecting pipe is connected to the base, and an installation is fixedly connected in the connecting pipe. frame, the mounting frame is rotatably connected with a rotating shaft, and the rotating shaft is fixedly connected with turbine blades, and also includes:

The chute is arranged in the connecting pipe;

A plurality of sets of piston rods are ring-shaped and fixedly connected in the chute, and the piston rods are connected with an air outlet pipe;

a filter screen connected to the telescopic end of the piston rod one, and the filter screen is slidably connected in the chute;

The sewage storage tank is fixedly connected to the water storage tank, and the sewage storage tank is provided with a sewage outlet, and the sewage discharge outlet runs through the connecting pipe, and the sewage discharge outlet is arranged obliquely, and the high end of the sewage discharge outlet is located under the filter screen ;

The second piston rod is fixedly connected in the rotating shaft, and the telescopic end of the second piston rod runs through the rotating shaft, and the gas outlet end of the air outlet pipe communicates with the second piston rod;

The scraper rod 1 is fixedly connected to the telescopic end of the piston rod 2, and one end of the scraper rod 1 is close to the chute;

The auxiliary cleaning device is arranged in the connecting pipe and is used for cleaning the inner wall of the connecting pipe.

In order to facilitate the cleaning of the inner wall of the connecting pipe, further, the auxiliary cleaning device includes a piston rod three, an air outlet branch pipe, and a scraper rod two. The piston rod three is fixedly connected to the turbine blade, and the telescopic end of the piston rod three runs through the turbine blade, the scraper rod two is fixedly connected to the telescopic end of the piston rod three, and the scraper rod two is not connected with The inner walls of the pipes are in contact with each other, the air outlet branch pipe is connected in the turbine blade, and the two ends of the air outlet branch pipe are in three-phase communication with the air outlet pipe and the piston rod respectively.

In order to facilitate the rotation of the rotating shaft, further, a bearing is connected inside the mounting frame, and the rotating shaft is rotatably connected in the mounting frame through the bearing.

In order to prevent the ingress of water from affecting the use of the bearing, furthermore, a waterproof cover is rotatably connected to the installation frame, and the waterproof cover is used to reduce the influence of water on the bearing.

In order to facilitate the suction and discharge of dust, further, a dust removal box is fixedly connected above the connecting pipe, and a dust inlet pipe and an exhaust pipe are fixedly connected to both ends of the dust removal box respectively.

In order to facilitate dust inhalation, further, a mounting rod is fixedly connected to the dust inlet pipe, and a driving motor is fixedly connected to the mounting rod, the output end of the driving motor runs through the mounting rod, and the penetrating end of the driving motor The upper is fixedly connected with rotating fan blades.

In order to facilitate the suction and discharge of the water in the water storage tank, furthermore, a water pump is connected in the water storage tank, and the liquid inlet and outlet ends of the water pump are respectively connected with a liquid inlet pipe and a liquid outlet pipe. The output end of the liquid pipe runs through the dust removal box, and the liquid outlet end of the liquid outlet pipe is located on the top of the dust removal box, and the liquid outlet end of the liquid outlet pipe is connected with an atomizing nozzle.

In order to replenish the water in the water storage tank, further, a liquid inlet pipe is connected to the water storage tank, and a sealing cover is connected to the liquid inlet pipe.

In order to discharge the water in the dirt storage tank, further, a dirt outlet pipe is connected to the dirt storage tank, and a sealing cover is connected to the dirt outlet pipe.

A kind of dedusting method of wet dedusting device for building engineering construction mainly comprises the following steps:

S1. Move the device to the construction site where dust removal is required, start the water pump and drive the motor;

S2. The start of the driving motor will make the rotating fan blades rotate, and then the dust floating in the air in the construction site will be sucked in through the dust inlet pipe. The dust will be cleaned, and the sewage generated will be discharged downwards into the connecting pipe, while the clean air will be discharged through the exhaust pipe;

S3. The flow of sewage will drive the turbine blades to rotate, and finally the sewage will be filtered by the filter, the particulate impurities will be filtered by the filter, and the relatively clean water will flow into the water storage tank again;

S4. With the increase of impurities on the filter, it will squeeze the piston rod 1, piston rod 2, and piston rod 3 to elongate, and then make the scraper rod 1 and scraper rod 2 connect to the filter screen and the filter screen through the rotation of the rotating shaft The inner wall of the pipe is cleaned, and the cleaned impurities will enter the sewage storage tank through the sewage outlet.

After adopting the above-mentioned technical scheme, the present invention has the following beneficial effects compared with the prior art: the present invention can squeeze the piston rod one by gravity through the phenomenon that the filter screen will become heavier after accumulating impurities, so that the scraper rod one is close to the filter screen, Clean the filter screen to avoid the wear and tear of the filter screen due to long-term contact with the scraper rod, which is convenient for the long-term use of the filter screen and the scraper rod.

Description of drawings

In the attached picture:

Fig. 1 is the structural representation one of a kind of construction engineering construction wet dedusting device that the present invention proposes;

Fig. 2 is the structure schematic diagram two of a kind of construction engineering construction wet dedusting device that the present invention proposes;

Fig. 3 is the structural representation of A in Fig. 2 of a kind of construction engineering construction wet dust removal device that the present invention proposes;

Fig. 4 is the structural representation of B in Fig. 3 of a kind of construction engineering construction wet dust removal device proposed by the present invention;

Fig. 5 is the structural representation of C in Fig. 3 of a kind of construction engineering construction wet dust removal device that the present invention proposes;

Fig. 6 is a structural schematic diagram of D in Fig. 3 of a kind of construction engineering construction wet dust removal device proposed by the present invention;

Fig. 7 is a structural schematic diagram of E in Fig. 3 of a wet dust removal device for construction engineering proposed by the present invention.

In the figure: 1, base; 2, water storage tank; 201, water pump; 202, liquid outlet pipe; 203, atomizing nozzle; 3, connecting pipe; 301, installation frame; 3011, waterproof cover; 302, rotating shaft; Turbine blade; 3022, bearing; 303, filter screen; 304, chute; 305, piston rod one; 3051, air outlet pipe; 3052, air outlet pipe; 3061, piston rod two; 3062, piston rod three; 3072, scraper bar two; 4, dust removal box; 5, dust inlet pipe; 501, drive motor;

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention , but not to limit the scope of the present invention.

Example 1:

Referring to Figures 1-7, a wet dust removal device for construction projects includes a base 1, a connecting pipe 3 is connected to the base 1, a mounting frame 301 is fixedly connected to the connecting pipe 3, and a rotating shaft is rotatably connected to the mounting frame 301. 302, the rotating shaft 302 is fixedly connected with a turbine blade 3021, and also includes: a chute 304, which is arranged in the connecting pipe 3; multiple groups of piston rods 305 are fixedly connected in the chute 304 in a ring shape, and the piston rod 1 305 The air outlet pipe 3051 is connected; the filter screen 303 is connected to the telescopic end of the piston rod one 305, and the filter screen 303 is slidably connected in the chute 304; the dirt storage tank 7 is fixedly connected to the water storage tank 2 and the dirt storage tank 7 A sewage outlet 701 is provided, and the sewage outlet 701 runs through the connecting pipe 3, and the sewage outlet 701 is arranged obliquely, and the high end of the sewage outlet 701 is located below the filter screen 303; The telescopic end of the telescopic end runs through the rotating shaft 302, and the gas outlet end of the air outlet pipe 3051 communicates with the second piston rod 3061; the first scraper rod 3071 is fixedly connected to the telescopic end of the second piston rod 3061, and one end of the first scraper rod 3071 is close to the chute 304; The auxiliary cleaning device is arranged in the connecting pipe 3 and is used for cleaning the inner wall of the connecting pipe 3; The third piston rod 3062 is fixedly connected to the turbine blade 3021, and the telescopic end of the third piston rod 3062 runs through the turbine blade 3021, and the second scraper rod 3072 is fixedly connected to the telescopic end of the third piston rod 3062, and the second scraper rod 3072 is not connected to the connecting pipe The inner wall of 3 is in contact, and the air outlet branch pipe 3052 is connected in the turbine blade 3021, and the two ends of the air outlet branch pipe 3052 communicate with the air outlet pipe 3051 and the piston rod three 3062 respectively; The dust inlet pipe 5 and the exhaust pipe 6 are respectively fixedly connected; the dust inlet pipe 5 is fixedly connected with a mounting rod, and a driving motor 501 is fixedly connected to the mounting rod. The end is fixedly connected with a rotating fan blade 502; the water storage tank 2 is connected with a water pump 201, and the liquid inlet and outlet ends of the water pump 201 are respectively connected with a liquid inlet pipe and a liquid outlet pipe 202, and the output end of the liquid outlet pipe 202 runs through the dust collector. box 4, and the liquid outlet end of the liquid outlet pipe 202 is located at the top of the dust removal box 4, and the liquid outlet end of the liquid outlet pipe 202 is connected with an atomizing nozzle 203; the water storage tank 2 is connected with a liquid inlet pipe, and the liquid inlet pipe is connected with a A sealing cover; the dirt storage tank 7 is connected with a sewage discharge pipe, and the sewage discharge pipe is connected with a sealing cover.

When the device is in use, the device is first moved to the construction site where dust treatment is required, then the water storage tank 2 is filled with water through the liquid inlet pipe, and then the water pump 201 and the drive motor 501 are started. At this time, the drive motor 501 start, the fan blade 502 rotates, and then continuously inhales the dust-containing gas from the outside, and then with the start of the water pump 201, it will continuously inhale the water in the water storage tank 2 and spray it out through the atomizing nozzle 203. At the same time, the water mist sprayed by the atomizing nozzle 203 will clean the dust gas sucked in by the rotating fan blade 502, and the dust will think that it is attached to the water mist and will fall with the water mist, and finally fall into the bottom of the dust removal box 4 and gather into a liquid. Flow into the connecting pipe 3 below, and the clean and clean air will be discharged through the exhaust pipe 6;

Converge into liquid and flow into the sewage in the connecting pipe 3 below. At this time, the sewage will drive the turbine blade 3021 to rotate, and then the rotating shaft 302 will rotate, and the sewage will fall on the filter screen 303 below, and the large particles will be filtered out. Retained on the filter screen 303, the filtered water will flow into the water storage tank 2 again through the filter screen 303. With the continuous filtering of the filter screen 303, more and more impurities will be retained on the filter screen 303. The weight of the net 303 increases, and then squeezes the piston rod one 305 below, the piston rod one 305 is extruded and discharges its own air, and the air will enter the air outlet pipe 3051 and then enter the piston rod two 3061, and the piston rod two 3061 is pressed The air pressure stretches, and then makes the scraper one 3071 close to the filter screen 303, and the scraper one 3071 rotates with the rotation of the rotating shaft 302, and then cleans the impurities on the filter screen 303, and the filter screen 303 is produced due to the weight. At this time, the sewage outlet 701 will communicate with the filter screen 303, and the initial state of the sewage outlet 701 is slightly lower than the filter screen 303, that is, when the filter screen 303 moves down, the impurities on the filter screen 303 can enter the sewage outlet 701 At this time, with the continuous rotation of the scraper 3071, the impurities on the filter screen 303 will enter the sewage storage tank 7 through the sewage outlet 701, which is convenient for the recovery of large particles of impurities. When the sewage passes through the worm wheel blade 3021, it will be Break up into liquid droplets, avoid excessive accumulation of sewage flow rate on the filter screen 303, prevent sewage from entering the sewage storage tank 7 through the sewage outlet 701 in large quantities, and subsequently follow the discharge of impurities, the filter screen 303 is reset, and the scraper bar is now - 3071 will also be reset and will no longer be in contact with the filter screen 303, avoiding wear and tear between the two caused by long-term contact;

Wherein the piston rod 1 305 in the device should be satisfied that the piston rod 2 3061 and the piston rod 3 3062 can be elongated under the influence of the air pressure when the piston rod 1 is squeezed;

Since the auxiliary cleaning device communicates with the piston rod one 305, the auxiliary cleaning device will stick to the inner wall of the connecting pipe 3 and clean the inner wall of the connecting pipe 3 at this time.

The rotating shaft 302 in the device can be driven by a motor. The specific installation method is that the motor is installed on the mounting frame 301, and the output end of the rotating shaft 302 and the motor is connected with a bevel gear, and the two are meshed and connected. The rotating shaft 302 can then be driven to rotate through the rotation of the motor, so as to prevent the rotating shaft 302 from being unable to rotate or having a slow rotation speed due to a small water flow.

Example 2:

Referring to Figures 1-5, a wet dust removal device for building construction is basically the same as that of Embodiment 1, furthermore: the auxiliary cleaning device includes piston rod three 3062, air outlet branch pipe 3052, and scraper rod two 3072. The third piston rod 3062 is fixedly connected to the turbine blade 3021, and the telescopic end of the third piston rod 3062 runs through the turbine blade 3021, and the second scraper rod 3072 is fixedly connected to the telescopic end of the third piston rod 3062, and the second scraper rod 3072 is not connected to the connecting pipe The inner wall of 3 is in contact with each other, and the air outlet branch pipe 3052 is connected in the turbine blade 3021, and the two ends of the air outlet branch pipe 3052 communicate with the air outlet pipe 3051 and the piston rod three 3062 respectively.

Specifically, when the auxiliary cleaning device is in use, the piston rod three 3062 can be elongated by the gas discharged from the piston rod one 305. At this time, the scraper rod two 3072 that is not attached to the inside of the connecting pipe 3 will be in contact with the inner wall of the connecting pipe 3. At this time, the inner wall of the connecting pipe 3 can be cleaned to prevent impurities from accumulating on the inner wall of the connecting pipe 3.

Example 3:

With reference to Fig. 3, Fig. 4, a kind of construction engineering construction uses the wet method dedusting device, is basically the same as embodiment 1, further is: the bearing 3022 is connected in the installation frame 301, and the rotating shaft 302 is connected to the installation frame through the rotation of the bearing 3022 Inside 301 ; a waterproof cover 3011 is rotatably connected to the mounting frame 301 , and the waterproof cover 3011 is used to reduce the impact of water on the bearing 3022 .

The device facilitates the rotation of the rotating shaft 302 through the setting of the bearing 3022, and at the same time, through the setting of the waterproof cover 3011, prevents sewage from entering the bearing 3022, which facilitates the long-term use of the bearing 3022.

Example 4:

Referring to Figures 1-7, a dust removal method for a construction wet dust removal device mainly includes the following steps:

S1. Move the device to the construction site where dust removal is required, and start the water pump 201 and the drive motor 501;

S2. The start of the driving motor 501 will make the rotating fan blade 502 rotate, and then the dust floating in the air in the construction site will be sucked through the dust inlet pipe 5, and the water pump 201 will continuously pump out the water in the water storage tank 2, and the water will pass through the atomizing nozzle 203 Squirt out to clean the dust in the air, and the sewage generated will be discharged downwards into the connecting pipe 3, and the clean air will be discharged through the exhaust pipe 6;

S3, the flow of sewage will drive the turbine blade 3021 to rotate, and finally the sewage will be filtered by the filter screen 303, the particulate impurities will be filtered by the filter screen 303, and relatively clean water will flow into the water storage tank 2 again;

S4. With the increase of impurities on the filter screen 303, the piston rod one 305 below will be squeezed, the piston rod two 3061 and the piston rod three 3032 will be elongated, and the rotation of the rotating shaft 302 will make the scraper rod one 3071 and the scraper rod Two 3072 clean the filter screen 303 and the inner wall of the connecting pipe 3 respectively, and the cleaned impurities will enter the dirt storage tank 7 through the sewage outlet 701.

In the present invention, through the phenomenon that the filter screen 303 will become heavy after accumulating impurities, the piston rod 305 is extruded by gravity, so that the scraper rod 3071 is close to the filter screen 303, and the filter screen 303 is cleaned to avoid the filter screen 303 due to long-term scraping. The wear and tear caused by rod one 3071 facilitates the long-term use of the filter screen 303 and the scraper rod one 3071.

The above descriptions are only preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with the technology of this patent Without departing from the scope of the technical solution of the present invention, personnel can use the technical content of the above prompts to make some changes or modify them into equivalent embodiments with equivalent changes. In essence, any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the solutions of the present invention.

Claims (10)

1. The utility model provides a wet dedusting device for building engineering construction, includes base (1), be connected with connecting pipe (3) on base (1), fixedly connected with mounting bracket (301) in connecting pipe (3), mounting bracket (301) internal rotation is connected with axis of rotation (302), fixedly connected with turbine blade (3021) on axis of rotation (302), its characterized in that still includes:

a chute (304) arranged in the connecting pipe (3);

the first piston rods (305) are annularly and fixedly connected in the sliding groove (304), and the first piston rods (305) are connected with an air outlet pipe (3051);

the filter screen (303) is connected to the telescopic end of the first piston rod (305), and the filter screen (303) is connected in the sliding groove (304) in a sliding way;

the sewage storage box (7) is fixedly connected to the water storage box (2), a sewage outlet (701) is formed in the sewage storage box (7), the sewage outlet (701) penetrates through the connecting pipe (3), the sewage outlet (701) is obliquely arranged, and the high end of the sewage outlet (701) is positioned below the filter screen (303);

the second piston rod (3061) is fixedly connected in the rotating shaft (302), the telescopic end of the second piston rod (3061) penetrates through the rotating shaft (302), and the air outlet end of the air outlet pipe (3051) is communicated with the second piston rod (3061);

the first scraping rod (3071) is fixedly connected to the telescopic end of the second piston rod (3061), and one end of the first scraping rod (3071) is close to the sliding groove (304);

the auxiliary cleaning device is arranged in the connecting pipe (3) and is used for cleaning the inner wall of the connecting pipe (3).

2. The wet dust removal device for construction engineering construction according to claim 1, wherein: the auxiliary cleaning device comprises a piston rod III (3062), an air outlet branch pipe (3052) and a scraping rod II (3072). The three (3062) of piston rod are fixedly connected on turbine leaf (3021), just the flexible end of the three (3062) of piston rod runs through turbine leaf (3021), scrape pole two (3072) fixed connection on the flexible end of the three (3062) of piston rod, just scrape pole two (3072) and be in contact with the inner wall of connecting pipe (3), it connects in turbine leaf (3021) to go out gas in being in charge of pipe (3052), the both ends that go out gas in being in charge of pipe (3052) communicate with each other with outlet duct (3051), piston rod three (3062) respectively.

3. The wet dust removal device for construction engineering construction according to claim 2, wherein: the mounting frame (301) is internally connected with a bearing (3022), and the rotating shaft (302) is rotatably connected in the mounting frame (301) through the bearing (3022).

4. A wet dust collector for construction engineering according to claim 3 wherein: a waterproof cover (3011) is rotatably connected to the mounting frame (301), and the waterproof cover (3011) is used for reducing the influence of water on the bearing (3022).

5. The wet dust removal device for construction engineering construction according to claim 4, wherein: the dust removing device is characterized in that a dust removing box (4) is fixedly connected above the connecting pipe (3), and two ends of the dust removing box (4) are respectively and fixedly connected with a dust inlet pipe (5) and an exhaust pipe (6).

6. The wet dust removal device for construction engineering construction according to claim 1, wherein: the dust inlet pipe is characterized in that an installation rod is fixedly connected in the dust inlet pipe (5), a driving motor (501) is fixedly connected to the installation rod, the output end of the driving motor (501) penetrates through the installation rod, and a rotating fan blade (502) is fixedly connected to the penetrating end of the driving motor (501).

7. The wet dust removal device for construction engineering construction according to claim 1, wherein: the water tank (2) is connected with a water pump (201), a liquid inlet end and a liquid outlet end of the water pump (201) are respectively connected with a liquid inlet pipe and a liquid outlet pipe (202), an output end of the liquid outlet pipe (202) penetrates through the dust removal box (4), a liquid outlet end of the liquid outlet pipe (202) is positioned at the top of the dust removal box (4), and a liquid outlet end of the liquid outlet pipe (202) is connected with an atomizing nozzle (203).

8. The wet dust removal device for construction engineering construction according to claim 1, wherein: the water storage tank (2) is connected with a liquid inlet pipe, and the liquid inlet pipe is connected with a sealing cover.

9. The wet dust removal device for construction engineering construction according to claim 1, wherein: the sewage storage box (7) is connected with a sewage outlet pipe, and the sewage outlet pipe is connected with a sealing cover.

10. The dust removing method of a wet dust removing apparatus for construction engineering according to claims 1 to 7, characterized by comprising the steps of:

s1, moving the device to a construction place where dust removal is required, and starting a water pump (201) and a driving motor (501);

s2, starting a driving motor (501) to enable a rotating fan blade (502) to rotate, further sucking scattered dust in a construction place through a dust inlet pipe (5), continuously pumping water in a water storage tank (2) out by a water pump (201), spraying the water through an atomization nozzle (203), cleaning the dust in the air, discharging generated sewage downwards into a connecting pipe (3), and discharging clean air through an exhaust pipe (6);

s3, the flow of the sewage drives the turbine blade (3021) to rotate, and finally the sewage is filtered by the filter screen (303), the particle impurities are filtered by the filter screen (303), and cleaner water flows into the water storage tank (2) again;

s4, along with the increase of impurities on the filter screen (303), the lower piston rod I (305) is extruded, the piston rod II (3061) and the piston rod III (3032) are extended, and then the scraping rod I (3071) and the scraping rod II (3072) respectively clean the inner walls of the filter screen (303) and the connecting pipe (3) through the rotation of the rotating shaft (302), and the cleaned impurities enter the sewage storage box (7) through the sewage drain (701).