CN210584233U

CN210584233U - Air purification system applied to textile workshop

Info

Publication number: CN210584233U
Application number: CN201920859257.0U
Authority: CN
Inventors: 罗仲高
Original assignee: Guangdong Yafang Textile Co Ltd
Current assignee: Guangdong Yafang Textile Co Ltd
Priority date: 2019-06-06
Filing date: 2019-06-06
Publication date: 2020-05-22
Anticipated expiration: 2029-06-06

Abstract

The utility model relates to an air purification system applied in a textile workshop, which is characterized by comprising an air suction device, a spraying device, a circulating filter device, a drainage tube and a drainage pump, wherein the spraying device comprises a spraying box, a limiting strip, a filter screen and a spraying head; the circulating filter device comprises a water tank, a first filter screen, a first pressing component, a second filter screen, a second pressing component, a third filter screen, a third pressing component, a circulating pump and a circulating water pipe, and is communicated with the spray header and the spray tank. The utility model discloses can play fine air purification effect, its quality of purifying is very high, and it can also avoid the water waste.

Description

Air purification system applied to textile workshop

Technical Field

The utility model relates to a weaving cloth production technical field, especially an use air purification system in weaving workshop.

Background

At present, a large amount of cotton dust, hemp dust, asbestos dust, etc. are often generated in textile workshops, and most of these dusts are in the form of fine filaments. When the dust is inhaled into human body, it will cause certain harm to human body. To reduce hazards, air filtration systems are often installed in textile workshops. The existing air process system comprises an air suction assembly, a spraying device and a water circulation filtering device. When the spraying device works, air in a workshop is sucked into the spraying device through the air suction assembly, and then water is sprayed into the sucked air through the spraying device, so that the amount of cotton dust, hemp dust and asbestos dust in the air can be reduced. In the water circulation filtering device, the water discharged by the spraying device can be processed through the filter screen on the water circulation filtering device so as to filter cotton dust, hemp dust and asbestos dust in the water, and the filtered water can be sent into the spraying device again.

Most of the existing spraying devices only perform the purification function on air through spraying, so that the purification effect is relatively limited, and the quality of air purification is relatively low.

Meanwhile, due to the structural limitation of the existing water circulation filtering device, after the water circulation filtering device is used for a period of time, the filter screen needs to be detached for cleaning, and the water circulation filtering device is put into the water circulation filtering device after the water circulation filtering device is cleaned. The mode of maintaining the filter screen is comparatively loaded down with trivial details like this, and the efficiency of maintaining is lower. And when the filter screen is disassembled, the working performance of the air filtering system is easily reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned problem and not enough, provide an air purification system who uses in weaving workshop, this air purification system can play fine air purification effect, and its quality of purifying is very high, and it can also avoid the water waste.

The technical scheme of the utility model is realized like this:

an air purification system applied to a textile workshop is characterized by comprising an air suction device, a spraying device, a circulating filter device, a drainage tube and a drainage pump, wherein the air suction device comprises a fan, an air guide tube body and an air suction cover; the spraying device comprises a spraying box, a limiting strip, a filter screen and a spraying head, wherein a spraying cavity is formed in the front of the spraying box, a shielding door is arranged on a cavity opening of the spraying cavity, an air inlet pipe opening penetrating through the spraying cavity is formed in the top surface of the spraying box and is connected with an air outlet of an air guide pipe body, an air outlet pipe opening penetrating through the spraying cavity is formed in the right wall of the spraying box, a bearing convex strip is arranged on the right cavity wall of the spraying cavity and longitudinally extends, the bearing convex strip is positioned above the air outlet pipe opening, a liquid collecting cavity is formed in the lower cavity wall of the spraying cavity, the limiting strip is longitudinally fixed on the left cavity wall of the spraying cavity and is positioned below the bearing convex strip, a convex strip portion is arranged on the right side edge of the top surface of the limiting strip, and an overflow notch transversely penetrates through is formed in the top of the convex strip portion, the top surface of the limiting strip is provided with an insertion groove, the top surface of the limiting strip is also provided with a U-shaped liquid guide hole, two holes of the U-shaped liquid guide hole are respectively positioned at the left side and the right side of the insertion groove, the filter screen is obliquely arranged in the spraying cavity in a left-low-right-high manner, the left side edge of the filter screen is inserted in the insertion groove, the right side edge of the filter screen is provided with a bent edge strip part, the edge strip part is pressed on the top surface of the bearing convex strip, and the spray head is arranged in the spraying cavity and positioned above the filter screen; the circulating filter device comprises a water tank, a first filter screen, a first pressing component, a second filter screen, a second pressing component, a third filter screen, a third pressing component, a circulating pump and a circulating water pipe, wherein a filter cavity is arranged on the water tank, a first funnel groove, a second funnel groove and a third funnel groove are respectively arranged at the cavity bottom of the filter cavity, the first funnel groove, the second funnel groove and the third funnel groove are arranged side by side in sequence from left to right, a first sewage discharge port is arranged at the bottom of the first funnel groove, a second sewage discharge port is arranged at the bottom of the second funnel groove, a third sewage discharge port is arranged at the bottom of the third funnel groove, a first insertion hole, a second insertion hole and a third insertion hole which penetrate through the filter cavity are respectively arranged on the top surface of the water tank, and the first insertion hole, the second insertion hole and the third insertion hole are arranged side by side in sequence from left to right, the first filter screen is inserted into the filter cavity from the first insertion hole, the bottom of the first filter screen is pressed on the groove wall of the first funnel groove, the first filter screen is positioned at the upper right side of the first sewage discharge port, the top surface of the first filter screen is positioned above the first insertion hole, the first pressing component comprises a first pressing block and a first screw, a first perforation is formed in the first pressing block, the first pressing block is movably arranged on the top surface of the water tank and is pressed on the top surface of the first filter screen, the first screw penetrates through the first perforation and is screwed on the top surface of the water tank, the second filter screen is inserted into the filter cavity from the second insertion hole, the bottom of the second filter screen is pressed on the groove wall of the second funnel groove, the second filter screen is positioned at the upper right side of the second sewage discharge port, and the top surface of the second filter screen is positioned above the second insertion hole, the second pressing component comprises a second pressing block and a second screw, a second through hole is formed in the second pressing block, the second pressing block is movably arranged on the top surface of the water tank, the second pressing block is pressed on the top surface of the second filter screen, the second screw penetrates through the second through hole and then is in threaded connection with the top surface of the water tank, the third filter screen is inserted into the filter cavity from a third insertion hole, the bottom of the third filter screen is pressed on the groove wall of a third funnel groove, the third filter screen is positioned on the upper right side of a third sewage discharge outlet, the top surface of the third filter screen is positioned above the third insertion hole, the third pressing component comprises a third pressing block and a third screw, a third through hole is formed in the third pressing block, the third pressing block is movably arranged on the top surface of the water tank and is pressed on the top surface of the third filter screen, the third screw penetrates through the third through hole and then is in threaded connection with the top surface of the water tank, a first operating hole penetrating to the filter cavity is formed in the top surface of the water tank on the left side of the first insertion hole, a second operating hole penetrating to the filter cavity is formed in the top surface of the water tank on the left side of the second insertion hole, a third operating hole penetrating to the filter cavity is formed in the top surface of the water tank on the left side of the third insertion hole, one end of the circulating water pipe is connected to the right wall of the water tank and communicated with the filter cavity, the other end of the circulating water pipe is connected with the spray header, and the circulating pump is connected to the circulating water pipe in series; the drainage pump is connected in series with the drainage tube, the inlet end of the drainage tube is communicated with the liquid collecting cavity, the outlet end of the drainage tube penetrates through the filter cavity, and the outlet end of the drainage tube is positioned on the left side of the first filter screen.

The utility model has the advantages that: through the setting of the air suction device, the effect of air suction can be achieved, and therefore polluted air can be conveniently sucked into the air purification system, and the requirement of air purification can be met. The spraying device is provided with the spraying head and the filter screen, so that a better purification effect can be achieved, and the air purification effect can be greatly improved. The spray head is positioned right above the filter screen, so that the filter screen can be flushed by the spray head; because the filter screen is the slope and arranges, like this when playing filterable, can wash the lower extreme to the filter screen with the debris that the filter screen filtered down again, can avoid gathering too much debris on the filter screen like this to just can make the filter screen keep efficient filtering action for a long time, therefore this air purification system's purification quality is very high. Because the lower end of the filter screen is inserted in the insertion groove, the sewage washed off can enter the left side of the insertion groove; because two orifices of the U-shaped liquid guide hole are respectively positioned at the left side and the right side of the insertion groove, sewage entering the left side of the insertion groove can enter the right side of the insertion groove through the U-shaped liquid guide hole and can flow into the liquid collecting cavity downwards through the overflow gap; therefore, the air which is not filtered to the greatest extent can be prevented from being discharged from the air outlet pipe opening, meanwhile, the condition that dirt is accumulated can be avoided, and the reliability of the air purification system is very high. Because the rim strip portion on the filter screen right side is pressed on the bearing sand grip, and the filter screen left side is the cartridge in the cartridge groove, the mounting means of this filter screen is very simple reliable. The first pressing block of the first pressing assembly is pressed on the first filter screen, so that the mounting and positioning stability of the first filter screen can be effectively improved; similarly, the stability of the installation and positioning of the second filter screen can be improved through the second pressing component; the stability of the installation and the positioning of the third filter screen can be improved through the third pressing component; thereby improving the reliability of the circulation filter device. Meanwhile, the structures of the first pressing assembly, the second pressing assembly and the third pressing assembly are all very simple and reliable. From the above structure, the first operation hole is located on the left side of the first filter, the second operation hole is located on the left side of the second filter, and the third operation hole is located on the left side of the third filter. And the during operation of circulating filter equipment, first filter screen, the second filter screen, filth on the third filter screen also is located their left surface mostly, can clean the left surface of first filter screen through first operation hole like this, clean the left surface of second filter screen through second operation hole, clean the left surface of third filter screen through third operation hole, like this when clean the filter screen, need not to dismantle the filter screen, can improve the convenience of the clean maintenance of filter screen effectively like this, thereby help improving the convenience that air filtration system maintained. The bottom of the first filter screen is pressed on the groove wall of the first funnel groove, and the first filter screen is positioned at the right upper side of the first sewage discharge port, so that the sewage cleaned from the left surface of the first filter screen can enter the first sewage discharge port along the inclined surface of the groove wall of the first funnel groove, and the sewage is convenient to discharge; in a similar way, the dirt on the second filter screen can be discharged through the second sewage draining outlet, and the dirt on the third filter screen can be discharged through the third sewage draining outlet, so that the maintenance convenience of the circulating filter device can be effectively improved. Because this circulating filter device has first filter screen, second filter screen, third filter screen to can play the filterable effect of cubic to water, this circulating filter device is very good to the filter effect of aquatic debris, can improve air filtration system's performance effectively. Through the arrangement of the drainage pump and the drainage pipe, the sewage in the liquid collection cavity can be introduced into the filter cavity, filtered by the circulating filter device and then can reenter the spray header through the circulating water pipe; thus, the water can be circulated completely to avoid waste of water resources.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the cross-sectional structure of the middle spraying device of the present invention.

Fig. 3 is a schematic view of the three-dimensional structure of the middle position-limiting strip of the present invention.

Fig. 4 is a schematic view of the sectional structure of the middle stop strip of the present invention.

Fig. 5 is a schematic structural diagram of the middle filter screen of the present invention.

Fig. 6 is a schematic sectional view of the middle circulation filtering device of the present invention.

Fig. 7 is an enlarged schematic structural view of a portion a in fig. 6 according to the present invention.

Fig. 8 is an enlarged schematic structural view of a portion B in fig. 6 according to the present invention.

Fig. 9 is an enlarged schematic structural view of a portion C in fig. 6 according to the present invention.

Detailed Description

It should be noted that all the directional indicators (such as the top surface, the bottom surface, the left, the right, the front, and the rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

As shown in fig. 1, the air purification system applied to the textile workshop of the present invention comprises an air suction device 1, a spraying device 2, a circulating filter device 3, a drainage tube 4 and a drainage pump 5, wherein, as shown in fig. 1, the air suction device 1 comprises a fan 11, an air guide tube body 12 and an air suction cover 13, the fan 11 is arranged in the air guide tube body 12, and the air suction cover 13 is arranged on an air inlet of the air guide tube body 12; as shown in fig. 1 to 5, the spraying device 2 includes a spraying box 21, a limiting strip 22, a filter screen 23, and a spraying head 24, wherein a spraying chamber 211 is formed on the front surface of the spraying box 21, a shield door 212 is formed on an opening of the spraying chamber 211, an air inlet 213 penetrating through the spraying chamber 211 is formed on the top surface of the spraying box 21, and the air inlet 213 is connected to the air outlet of the air guide tube 12, an air outlet 214 penetrating through the spraying chamber 211 is formed on the right wall of the spraying box 21, a supporting convex strip 215 is formed on the right wall of the spraying chamber 211, and the supporting convex strip 215 extends longitudinally, and is located above the air outlet 214, a liquid collecting chamber 216 is formed on the lower wall of the spraying chamber 211, the limiting strip 22 is longitudinally fixed on the left wall of the spraying chamber 211, and the limiting strip 22 is located below the left side of the supporting convex strip 215, a convex strip portion 221 is arranged on the right side edge of the top surface of the limit strip 22, an overflow notch 222 which transversely penetrates through the convex strip portion 221 is arranged at the top of the convex strip portion 221, an insertion groove 223 is formed in the top surface of the limit strip 22, a U-shaped liquid guide hole 224 is further formed in the top surface of the limit strip 22, two holes of the U-shaped liquid guide hole 224 are respectively located on the left side and the right side of the insertion groove 223, the filter screen 23 is obliquely arranged in the spraying chamber 211 in a left-low-right-high mode, the left side edge of the filter screen 23 is inserted in the insertion groove 223, a bent edge strip portion 231 is arranged on the right side edge of the filter screen 23, the edge strip portion 231 is pressed on the top surface of the bearing convex strip 215, the spray head 24 is arranged in the spraying chamber 211, and the spray head 24; as shown in fig. 6 to 9, the circulating and filtering device 3 includes a water tank 31, a first filter screen 32, a first compressing assembly 33, a second filter screen 34, a second compressing assembly 35, a third filter screen 36, a third compressing assembly 37, a circulating pump 38, and a circulating water pipe 39, a filter cavity 311 is disposed on the water tank 31, a first funnel groove 312, a second funnel groove 313, and a third funnel groove 314 are respectively disposed at the bottom of the filter cavity 311, and the first funnel groove 312, the second funnel groove 313, and the third funnel groove 314 are arranged side by side from left to right in sequence, a first drain 301 is disposed at the bottom of the first funnel groove 312, a second drain 302 is disposed at the bottom of the second funnel groove 313, a third drain 303 is disposed at the bottom of the third funnel groove 314, a first plug-in hole 315, a second plug-in hole 316, a first plug-in hole 316, and a second plug-in hole 316 are respectively disposed on the top surface of the water tank 31, and the first plug-in hole, A third insertion hole 317, wherein the first insertion hole 315, the second insertion hole 316 and the third insertion hole 317 are arranged side by side in the order from left to right, the first filter 32 is inserted into the filter cavity 311 from the first insertion hole 315, the bottom of the first filter 32 is pressed against the wall of the first funnel groove 312, the first filter 32 is positioned at the upper right side of the first drain opening 301, the top surface of the first filter 32 is positioned above the first insertion hole 315, the first pressing component 33 comprises a first pressing block 331 and a first screw 332, the first pressing block 331 is provided with a first through hole 333, the first pressing block 331 is movably arranged on the top surface of the water tank 31, the first pressing block 331 is pressed against the top surface of the first filter 32, the first screw 332 is screwed to the top surface of the water tank 31 after passing through the first through hole 333, the second filter 34 is inserted into the filter cavity 311 from the second insertion hole 316, and the bottom of the second filter screen 34 is pressed on the groove wall of the second funnel groove 313, the second filter screen 34 is positioned at the upper right side of the second sewage discharge outlet 302, the top surface of the second filter screen 34 is positioned above the second insertion hole 316, the second pressing component 35 comprises a second pressing block 351 and a second screw 352, the second pressing block 351 is provided with a second through hole 353, the second pressing block 351 is movably arranged on the top surface of the water tank 31, the second pressing block 351 is pressed on the top surface of the second filter screen 34, the second screw 352 is screwed on the top surface of the water tank 31 after passing through the second through hole 353, the third filter screen 36 is inserted into the filter cavity 311 from the third insertion hole 317, the bottom of the third filter screen 36 is pressed on the groove wall of the third funnel groove 314, the third filter screen 36 is positioned at the upper right side of the third sewage discharge outlet 303, and the top surface of the third filter screen 36 is positioned above the third insertion hole 317, the third pressing component 37 comprises a third pressing block 371 and a third screw 372, a third through hole 373 is formed in the third pressing block 371, the third pressing block 371 is movably arranged on the top surface of the water tank 31, the third pressing block 371 is pressed on the top surface of the third filter screen 36, the third screw 372 is screwed on the top surface of the water tank 31 after passing through the third through hole 373, a first operating hole 304 penetrating to the filter cavity 311 is formed in the top surface of the water tank 31 on the left side of the first insertion hole 315, a second operating hole 305 penetrating to the filter cavity 311 is formed in the top surface of the water tank 31 on the left side of the second insertion hole 316, and a third operating hole 306 penetrating to the filter cavity 311 is formed in the top surface of the water tank 31 on the left side of the third insertion hole 317; as shown in fig. 1 and fig. 6, one end of the circulating water pipe 39 is connected to the right wall of the water tank 31 and communicated with the filter cavity 311, the other end of the circulating water pipe 39 is connected to the shower head 24, and the circulating pump 38 is connected in series to the circulating water pipe 39; as shown in fig. 1, the drainage pump 5 is connected in series to the drainage tube 4, and connects the inlet end of the drainage tube 4 with the liquid collecting chamber 216, and also passes the outlet end of the drainage tube 4 through the filtering chamber 311, and the outlet end of the drainage tube 4 is located at the left side of the first filter screen 32. Through the arrangement of the air suction device 1, the air suction device can play a role in sucking air, so that polluted air can be conveniently sucked into the air purification system to meet the requirement of air purification. The spraying device 2 is provided with the spraying head 24 and the filter screen 23, so that a better purification effect can be achieved, and the air purification effect can be greatly improved. The spray header 24 is positioned right above the filter screen 23, so that the filter screen 23 can be flushed by the spray header 24; because the filter screen 23 is the slope and arranges, like this play filterable while, can wash the debris that filter 23 filtered down to the lower extreme of filter screen 23 again, can avoid gathering too much debris on the filter screen 23 like this to just can make filter screen 23 keep the efficient filtering action for a long time, therefore this air purification system's purification quality is very high. Because the lower end of the filter screen 23 is inserted into the insertion groove 223, the sewage washed off in this way enters the left side of the insertion groove 223; because two orifices of the U-shaped liquid guide hole 224 are respectively positioned at the left side and the right side of the cartridge groove 223, sewage entering the left side of the cartridge groove 223 can enter the right side of the cartridge groove 223 through the U-shaped liquid guide hole 224 and can flow downwards into the liquid collecting cavity 216 through the overflow notch 222; this can avoid the situation that the air that is not filtered to the greatest extent is discharged from the air outlet pipe opening 214, and can avoid the situation that the filth is piled up, and the reliability of this air purification system is very high simultaneously. Because the rim 231 on the right side of the filter screen 23 is pressed against the support rib 215 and the left side of the filter screen 23 is inserted into the insertion groove 223, the filter screen 23 is mounted in a very simple and reliable manner. By pressing the first pressing block 331 of the first pressing assembly 33 on the first filter screen 32, the stability of the installation and positioning of the first filter screen 32 can be effectively improved; similarly, the stability of the installation and positioning of the second filter screen 34 can be improved by the second pressing component 35; the stability of the installation and positioning of the third filter screen 36 can be improved by the third pressing component 37; thereby, the reliability of the circulation filter device 3 can be improved. Meanwhile, the structures of the first pressing component 33, the second pressing component 35 and the third pressing component 37 are all very simple and reliable. From the above structure, it can be seen that first aperture 304 is located to the left of first filter 32, second aperture 305 is located to the left of second filter 34, and third aperture 306 is located to the left of third filter 36. And the circulating filter device 3 during operation, the filth on first filter screen 32, second filter screen 34, third filter screen 36 also is located their left surface mostly, can clean the left surface of first filter screen 32 through first handle hole 304 like this, clean the left surface of second filter screen 34 through second handle hole 305, clean the left surface of third filter screen 36 through third handle hole 306, like this when clean the filter screen, need not to dismantle the filter screen, can improve the convenience of filter screen clean maintenance effectively like this, thereby help improving the convenience that the filtration system maintained. Because the bottom of the first filter screen 32 is pressed on the groove wall of the first funnel groove 312, and the first filter screen 32 is positioned at the right upper side of the first sewage discharge port 301, the sewage cleaned from the left surface of the first filter screen 32 can enter the first sewage discharge port 301 along the inclined plane of the groove wall of the first funnel groove 312, thereby facilitating the sewage discharge; similarly, the dirt on the second filter screen 34 can be discharged through the second dirt discharge outlet 302, and the dirt on the third filter screen 36 can be discharged through the third dirt discharge outlet 303, so that the maintenance convenience of the circulating filter device 3 can be effectively improved. Because this circulating filter device 3 has first filter screen 32, second filter screen 34, third filter screen 36 to can play the filterable effect of cubic to water, this circulating filter device 3 is very good to the filter effect of aquatic debris, can improve air filtration system's performance effectively. Through the arrangement of the drainage pump 5 and the drainage tube 4, the sewage in the liquid collecting cavity 216 can be introduced into the filtering cavity 311, filtered by the circulating filtering device 3 and then can reenter the spray header 24 through the circulating water pipe 39; thus, the water can be circulated completely to avoid waste of water resources.

As shown in FIG. 1, in the actual manufacturing process, a plurality of air suction hoods 13 can be arranged, and each air suction hood 13 is respectively installed beside different stations, and each air suction hood 13 is communicated with the air inlet hole of the air guide tube body 12, so that the air of a plurality of stations can be purified at the same time.

In the actual manufacturing process, a plurality of shower heads 24 may be provided as needed.

In the actual manufacturing process, the rear side edge of the filter screen 23 is tightly attached to the rear cavity wall of the spraying cavity 211; the screen door 212 is tightly attached to the front side of the filter screen 23; this completely prevents the discharge of the unfiltered air from the outlet nozzle 214.

The notches of the grooves 223 are oriented toward the holding rib 215, and the grooves 223 extend longitudinally to the front and rear end faces of the stopper bar 22.

In the actual manufacturing process, a plurality of overflow notches 222 and a plurality of U-shaped liquid guide holes 224 may be formed on the stopper strip 22.

The first funnel groove 312, the second funnel groove 313 and the third funnel groove 314 are all in an inverted pyramid shape.

When it is desired to clean the first filter 32 with a brush, the brush may be applied to the left wall of the first filter 32 through the first operation hole 304; when it is desired to flush first filter 32 with water, the outlet of the water line may be positioned in first access aperture 304 so that first filter 32 can be flushed with water. Wherein the second filter 34 and the third filter 36 can be cleaned in the same way.

The outer sides of the first sewage draining port 301, the second sewage draining port 302 and the third sewage draining port 303 are all provided with switch valves, so that whether the corresponding sewage draining ports need to be opened or not can be selected through the switch valves.

The first operation hole 304, the second operation hole 305 and the third operation hole 306 are all provided with shielding covers, and through the arrangement of the shielding covers, impurities or dust can be prevented from entering the filtering cavity 311, so that the filtering effect of the circulating filtering device 3 is prevented from being affected.

First filter 32 is a coarse filter, second filter 34 is a medium filter, and third filter 36 is a fine filter.

Claims

1. The utility model provides an use air purification system in weaving workshop which characterized in that: the air-purifying device comprises an air suction device (1), a spraying device (2), a circulating filtering device (3), a drainage tube (4) and a drainage pump (5), wherein the air suction device (1) comprises a fan (11), an air guide pipe body (12) and an air suction cover (13), the fan (11) is arranged in the air guide pipe body (12), and the air suction cover (13) is arranged on an air inlet of the air guide pipe body (12); the spraying device (2) comprises a spraying box (21), a limiting strip (22), a filter screen (23) and a spraying head (24), wherein a spraying cavity (211) is formed in the front of the spraying box (21), a shielding door (212) is arranged on a cavity opening of the spraying cavity (211), an air inlet pipe opening (213) penetrating through the spraying cavity (211) is formed in the top surface of the spraying box (21), the air inlet pipe opening (213) is connected with an air outlet of the air guide pipe body (12), an air outlet pipe opening (214) penetrating through the spraying cavity (211) is formed in the right wall of the spraying box (21), a bearing convex strip (215) is arranged on the right cavity wall of the spraying cavity (211), the bearing convex strip (215) longitudinally extends, the bearing convex strip (215) is positioned above the air outlet pipe opening (214), a liquid collecting cavity (216) is formed in the lower cavity wall of the spraying cavity (211), the limiting strips (22) are longitudinally arranged and fixed on the left cavity wall of the spraying cavity (211), the limiting strips (22) are positioned on the left lower side of the bearing convex strips (215), the right side edge of the top surface of the limiting strips (22) is provided with convex strip parts (221), the tops of the convex strip parts (221) are provided with overflow gaps (222) which transversely penetrate through, the top surface of the limiting strips (22) is provided with insertion grooves (223), the top surface of the limiting strips (22) is also provided with U-shaped liquid guide holes (224), two orifices of the U-shaped liquid guide holes (224) are respectively positioned on the left side and the right side of the insertion grooves (223), the filter screen (23) is obliquely arranged in the spraying cavity (211) in a left-low-right high mode, the left side edge of the filter screen (23) is inserted in the insertion grooves (223), the right side of the filter screen (23) is provided with bent edge strip parts (231), and the edge parts (231) are pressed on the top surface of the bearing convex strips (215), the spray head (24) is arranged in the spray chamber (211), and the spray head (24) is positioned above the filter screen (23); the circulating filter device (3) comprises a water tank (31), a first filter screen (32), a first pressing component (33), a second filter screen (34), a second pressing component (35), a third filter screen (36), a third pressing component (37), a circulating pump (38) and a circulating water pipe (39), wherein a filter cavity (311) is arranged on the water tank (31), a first funnel groove (312), a second funnel groove (313) and a third funnel groove (314) are respectively formed in the cavity bottom of the filter cavity (311), the first funnel groove (312), the second funnel groove (313) and the third funnel groove (314) are arranged side by side in sequence from left to right, a first sewage discharge port (301) is formed in the groove bottom of the first funnel groove (312), a second sewage discharge port (302) is formed in the groove bottom of the second funnel groove (313), a third sewage discharge port (303) is formed in the groove bottom of the third funnel groove (314), the top surface of the water tank (31) is respectively provided with a first insertion hole (315), a second insertion hole (316) and a third insertion hole (317) which penetrate through the filter cavity (311), the first insertion hole (315), the second insertion hole (316) and the third insertion hole (317) are arranged side by side from left to right, the first filter screen (32) is inserted into the filter cavity (311) from the first insertion hole (315), the bottom of the first filter screen (32) is pressed on the groove wall of the first funnel groove (312), the first filter screen (32) is positioned at the upper right side of the first drain outlet (301), the top surface of the first filter screen (32) is positioned above the first insertion hole (315), the first compression assembly (33) comprises a first compression block (331) and a first screw (332), the first compression block (331) is provided with a first through hole (333), and the first compression block (331) is movably arranged on the top surface of the water tank (31), and a first pressing block (331) is pressed on the top surface of the first filter screen (32), the first screw (332) is screwed on the top surface of the water tank (31) after passing through the first through hole (333), the second filter screen (34) is inserted into the filter cavity (311) from the second insertion hole (316), the bottom of the second filter screen (34) is pressed on the groove wall of the second funnel groove (313), the second filter screen (34) is positioned at the upper right side of the second sewage draining outlet (302), the top surface of the second filter screen (34) is positioned above the second insertion hole (316), the second pressing component (35) comprises a second pressing block (351) and a second screw (352), the second pressing block (351) is provided with a second through hole (353), the second pressing block (351) is movably arranged on the top surface of the water tank (31), and the second pressing block (351) is pressed on the top surface of the second filter screen (34), the second screw (352) penetrates through the second through hole (353) and then is screwed on the top surface of the water tank (31), the third filter screen (36) is inserted into the filter cavity (311) from the third insertion hole (317), the bottom of the third filter screen (36) is pressed on the wall of the third funnel groove (314), the third filter screen (36) is also positioned at the right upper side of the third sewage discharge outlet (303), the top surface of the third filter screen (36) is positioned above the third insertion hole (317), the third pressing component (37) comprises a third pressing block (371) and a third screw (372), the third pressing block (371) is provided with a third through hole (373), the third pressing block (371) is movably arranged on the top surface of the water tank (31) and presses the third pressing block (371) on the top surface of the third filter screen (36), the third screw (372) penetrates through the third through hole (373) and then is screwed on the top surface of the water tank (31), a first operating hole (304) penetrating through the filter cavity (311) is formed in the top surface of the water tank (31) on the left side of the first insertion hole (315), a second operating hole (305) penetrating through the filter cavity (311) is formed in the top surface of the water tank (31) on the left side of the second insertion hole (316), a third operating hole (306) penetrating through the filter cavity (311) is formed in the top surface of the water tank (31) on the left side of the third insertion hole (317), one end of the circulating water pipe (39) is connected to the right wall of the water tank (31) and communicated with the filter cavity (311), the other end of the circulating water pipe (39) is connected with the spray header (24), and the circulating pump (38) is connected in series to the circulating water pipe (39); the drainage pump (5) is connected in series with the drainage tube (4), the inlet end of the drainage tube (4) is communicated with the liquid collecting cavity (216), the outlet end of the drainage tube (4) penetrates through the filtering cavity (311), and the outlet end of the drainage tube (4) is positioned on the left side of the first filter screen (32).