CN220034901U - Water circulation dyeing device - Google Patents

Abstract

The utility model relates to a water circulation dyeing device, which comprises a dyeing tank, a circulation pipeline and a filter tank, wherein a dyeing cavity and a recovery cavity are arranged in the dyeing tank, a spray head for spraying dye liquor is arranged in the dyeing cavity, the circulation pipeline comprises a return pipe and a liquid supply pipe, the filter tank is arranged in the filter tank, a check plate is arranged on one side of the filter tank close to the return pipe, a filter screen is arranged on one side of the filter tank close to the liquid supply pipe, dye liquor is sprayed to a dye through the spray head in the dyeing cavity, the dye liquor flows into the recovery cavity from the dyeing cavity through a through hole for dyeing the dye liquor, the dye liquor in the recovery cavity flows into the filter tank through the return pipe, the filter tank is filtered, and finally, wool is collected in the filter tank, and the filtered dye liquor is pumped to the spray head again through the liquid supply pipe and the circulation pump for use.

Description

Water circulation dyeing device

Technical Field

The utility model relates to the field of dyeing machines, in particular to a water circulation dyeing device.

Background

The dyeing machine is used for dyeing, bleaching, scouring, washing and other processes of ready-made clothes such as woolen sweater, acrylic fiber, cotton sweater and the like, can also be used for bleaching and dyeing of finished products such as gloves, socks, towels and the like, is ideal bleaching and dyeing equipment for the finished products with wide application range, and utilizes the forward and reverse directions of the blades to stir the dye liquor, so that the dyed matters are in a float dyeing state, and the dyed matters are uniform in dyeing and strong in penetrating power and are not easy to damage.

The related art can refer to Chinese patent with publication number of CN204238002U to disclose a double-layer hank dyeing machine, comprising a machine body, a dye circulating device, a pump, a movable door, a support column and a double-layer dye spray pipe; the rear end of the double-layer dye spray pipe is fixed on the support column, and a feed inlet at the rear end of the double-layer dye spray pipe is connected with the dye circulating device; the dye circulation device comprises a dye circulation pipe and a pump, one end of the dye circulation pipe is connected to the lower part of the machine body, the dye circulation pipe penetrates through the side wall of the machine body and is positioned in the machine body, and the other end of the dye circulation pipe is connected with a feed inlet at the rear end of the double-layer dye spray pipe.

Aiming at the related technology, the dye liquor is continuously recycled through the fuel recycling device, and the dyeing work is continuously carried out for the dye. After long-term use, a lot of yarn flocks can be accumulated in the dye liquor, and a circulating pump can be blocked, so that the normal use of the dyeing machine is affected.

Disclosure of Invention

In order to filter and collect flocks in the circulating dye liquor and ensure normal use of a dyeing machine, the utility model provides a water circulation dyeing device.

The utility model provides a water circulation dyeing device, which adopts the following technical scheme:

the utility model provides a water circulation's dyeing apparatus, includes dyeing tank and circulation line, still includes the filter tank, be equipped with the dyeing chamber in the dyeing tank and retrieve the chamber, set up a plurality of through-holes that are used for intercommunication dyeing chamber and retrieve the chamber on the dyeing tank, the dyeing intracavity is equipped with the shower nozzle that is used for spraying the dye liquor, circulation line includes back flow and liquid supply pipe, filter tank one end is retrieved the chamber through back flow intercommunication, the other end is through liquid supply pipe intercommunication shower nozzle, be equipped with the circulating pump that is used for the pump-up dye liquor on the liquid supply pipe, be equipped with the rose box in the filter tank, rose box is close to back flow one side and is equipped with the check board, be close to liquid supply pipe one side and be equipped with the filter screen, a plurality of check holes have been seted up on the check board, check hole department is close to liquid supply pipe one side and is connected with the check elastic piece that is used for restricting the batting unidirectional through.

Through adopting above-mentioned technical scheme, spray the dye liquor to the dyestuff through the shower nozzle in the dyeing chamber, for the dyestuff dyeing, unnecessary dye liquor flows into the recovery chamber from the dyeing chamber through the through-hole, and the dye liquor can carry the batting this moment. Dye liquor in the recovery cavity flows into the filter tank through the return pipe, the dye liquor is filtered in the filter tank through the filter tank, the check elastic sheet is made of soft rubber materials, when the dye liquor flows from one side close to the return pipe to one side close to the liquid supply pipe, the check elastic sheet can be bent by pressure, the dye liquor carries wool batting to pass through the check plate through the check hole to reach the filter tank, when the dye liquor passes through the filter screen, the wool batting is filtered out, the wool batting cannot reversely pass through the check elastic sheet, and finally the wool batting is collected in the filter tank. The dye liquor after filtration is pumped to the spray head again through the liquor supply pipe and the circulating pump for use. The filtering and collecting of the flocks in the circulating dye liquor are realized, and the normal use of the dyeing machine is ensured.

Optionally, a chute is formed in the filtering tank, the chute is perpendicular to the flowing direction of the dye liquor, and the filtering box is slidably connected in the chute.

Through adopting above-mentioned technical scheme, after using dyeing apparatus for a long time, can collect a large amount of battings in the rose box, influence the rate that the dye liquor passed through the rose box, and then influence the dyeing efficiency of whole dyeing apparatus. The filter tank is connected in the filter tank in a sliding manner, when more flocks are formed in the filter tank, the filter tank can be conveniently taken out and cleaned, the rate of dye liquor passing through the filter tank is recovered, and the normal use of the dyeing machine is ensured.

Optionally, a replacement groove matched with the filter tank is formed in the filter tank, and the replacement groove is perpendicular to the flowing direction of the dye liquor.

Through adopting above-mentioned technical scheme, when carrying out the dyeing work in batches, need cooperate the filtration work of long-time high strength, the frequency of clearance rose box also can increase, takes out the in-process of clearance with the rose box, and the filter tank loses filtering capability, and the dyeing work must stop, has restricted dyeing efficiency to a certain extent. Through addding the replacement groove, when the rose box in the clearance spout, can place the clean rose box of another earlier in the replacement groove, the rose box can directly take out the clearance in the spout this moment, need not to pause dyeing work, and spout and replacement groove can use in turn.

Optionally, vertical sliding connection has the clearance frame that the level set up in the filtering ponds, is equipped with the clearance filter screen on the clearance frame, and the clearance frame is located between spout and the replacement groove and is located the rose box of spout and replacement inslot and all with clearance frame butt.

Through adopting above-mentioned technical scheme, when changing the rose box that is located and is close to liquid supply pipe one side, need to be with the rose box slidable mounting who accomplishes the clearance to be close to back flow one side, if will slide out old rose box this moment, the batting between two rose boxes will directly get into liquid supply pipe, though this part batting is less, still can cause the influence to equipment such as circulating pump after long-term use. The clearance frame sets up in filtering ponds bottom during normal filtration, can upwards rise the clearance frame when changing the rose box, utilizes the clearance filter screen to filter this part batting.

Optionally, the filter tank is equipped with the apron, fixedly connected with displacement cylinder on the apron, the telescopic shaft of displacement cylinder sets up vertically downwards and with clearance frame fixed connection.

Through adopting above-mentioned technical scheme, for the mass production of cooperation mill, filtering ponds are generally great with the clearance frame, adopt the mode of artifical lifting clearance frame, waste time and energy and have certain danger. The lifting of the cleaning frame is controlled by the displacement cylinder, so that the working efficiency of replacing the filter box with the lifting cleaning plate can be improved, and the safety of operators is guaranteed.

Optionally, connect the slide rail that the level set up on the filtering ponds, slide rail perpendicular to dye liquor direction of movement sets up, sliding connection has the scraper blade that the level set up on the slide rail, and the slide is parallel to dye liquor direction of movement setting, and when the clearance frame promoted to the highest position, scraper blade and clearance frame butt, two discharge gates with scraper blade assorted have been seted up to the filtering ponds lateral wall.

Through adopting above-mentioned technical scheme, through setting up scraper blade and discharge gate, can strike off the batting on the clearance filter screen after the lifting of clearance frame fast, need not to pull down the clearance with the clearance frame, help improving cleaning efficiency.

Optionally, the filter tank lateral wall rotates and is connected with parallel arrangement's threaded rod, and threaded rod perpendicular to dye liquor direction of movement sets up, scraper blade and threaded rod threaded connection, filter tank lateral wall fixedly connected with rotation motor, rotation motor's output shaft and threaded rod fixed connection.

Through adopting above-mentioned technical scheme, through rotating motor drive threaded rod rotation, and then the removal of drive scraper blade, machinery replaces the manual work, helps improving cleaning efficiency.

Optionally, the filter tank lateral wall has been seted up and has been used for the filter tank gliding intercommunication spout between spout and replacement groove, the fixed orifices has been seted up with spout and replacement groove intercommunication respectively at intercommunication spout both ends, the filter tank is close to filter tank lateral wall both sides, all seted up on spout and the replacement groove with fixed orifices assorted locking hole, when the filter tank in the spout and the butt of filter tank bottom, the locking hole on fixed orifices and the spout is linked together, when the filter tank in the replacement groove and the butt of filter tank bottom, the locking hole intercommunication each other on fixed orifices and the replacement groove, sliding connection has the bolt in the fixed orifices.

Through adopting above-mentioned technical scheme, when changing the rose box that is located and is close to liquid supply pipe one side, need to be with the rose box slidable mounting who accomplishes the clearance to be close to back flow one side, if will slide out old rose box this moment, the batting between two rose boxes will directly get into liquid supply pipe, though this part batting is less, still can cause the influence to equipment such as circulating pump after long-term use. The filter box is arranged in the chute or the replacement chute close to one side of the liquid supply pipe during normal filtration, and can directly horizontally slide to the chute or the replacement chute close to one side of the return pipe through the communication chute when the filter box needs to be cleaned, and is fixed with the fixing hole and the locking hole through the bolt, so that the position of the filter box is fixed. The cleaned filter box directly slides into the chute or the replacement chute close to one side of the liquid supply pipe, and the filter box to be cleaned slides out of the cleaning device. The whole replacement process can directly collect the batting between the chute and the standby replacement groove, so that the batting between the chute and the replacement groove is prevented from directly entering the liquid supply pipe.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. dye liquor is filtered through the rose box in the filtering ponds, and the non return elastic piece adopts soft rubber material to make, and when dye liquor was flowed by being close to back flow one side and being close to feed pipe one side, the non return elastic piece can be pressed the bending, and dye liquor carries the batting to pass the check board through the non return hole and reachs the rose box in, and when dye liquor passed the filter screen, the batting was filtered out, and the batting can't be reverse through the non return elastic piece, and finally the batting is collected in the rose box, and the dye liquor of accomplishing of filtration is through feed pipe and circulating pump pumping to shower nozzle again and is utilized. The filtering and collecting of the flocks in the circulating dye liquor are realized, and the normal use of the dyeing machine is ensured;

2. when changing the rose box that is located and is close to liquid supply pipe one side, need to be with the rose box slidable mounting who accomplishes the clearance to be close to back flow one side, if will slide out old rose box this moment, the batting between two rose boxes will directly get into liquid supply pipe, though this part batting is less, still can cause the influence to equipment such as circulating pump after long-term use, the clearance frame sets up in filtering ponds bottom during normal filtration, can upwards lift the clearance frame when changing the rose box, utilizes the clearance filter screen to filter this part batting.

Drawings

Fig. 1 is a schematic overall structure of the first embodiment.

Fig. 2 is a schematic diagram showing the internal structure of the squeegee in the first embodiment.

Fig. 3 is a schematic diagram showing an internal structure of a cleaning frame in the first embodiment.

Fig. 4 is an enlarged schematic view of the portion a in fig. 2.

Fig. 5 is a schematic overall structure of the second embodiment.

Fig. 6 is an enlarged schematic view of the portion B in fig. 5.

Reference numerals illustrate: 1. a dyeing box; 11. a dyeing chamber; 111. a spray head; 12. a recovery chamber; 13. a through hole; 2. a circulation pipe; 21. a return pipe; 22. a liquid supply pipe; 221. a circulation pump; 3. a filtering tank; 31. a filter box; 311. a check plate; 3111. a check hole; 3112. a non-return elastic sheet; 312. a filter screen; 313. a fixing hole; 3131. a plug pin; 32. a chute; 33. a replacement groove; 34. cleaning a frame; 341. cleaning a filter screen; 35. a cover plate; 36. a displacement cylinder; 371. a slide rail; 372. a scraper; 373. a threaded rod; 374. a rotating motor; 375. a discharge port; 38. a communicating chute; 39. locking holes.

Detailed Description

The present utility model will be described in further detail below with reference to the accompanying drawings.

Embodiment one:

referring to fig. 1 and 2, a water circulation dyeing apparatus includes a dyeing tank 1, a circulation pipe 2, and a filtering tank 3. The dyeing box 1 is internally provided with a dyeing cavity 11 for dyeing a dye and a recovery cavity 12 for collecting redundant dye liquor, the dyeing cavity 11 is positioned above the recovery cavity 12, the dyeing box 1 is provided with a plurality of through holes 13 for communicating the dyeing cavity 11 with the recovery cavity 12, the through holes 13 are vertically arranged, and the redundant dye liquor can flow into the recovery cavity 12 from the dyeing cavity 11 under the action of gravity. A spray head 111 is installed in the dyeing chamber 11 to spray the dye solution to the dye to dye the dye. The circulation pipeline 2 comprises a return pipe 21 and a liquid supply pipe 22, one end of the filter tank 3 is communicated with the recovery cavity 12 through the return pipe 21, the other end of the filter tank is communicated with the spray head 111 through the liquid supply pipe 22, and a circulation pump 221 for pumping dye liquor is arranged on the liquid supply pipe 22. The dye liquor collected in the recovery cavity 12 enters the filtering tank 3 through the return pipe 21 to filter and collect the flocks in the dye liquor, and the treated dye liquor is pumped into the spray head 111 again through the liquid supply pipe 22 and the circulating pump 221 for recycling. The filtering and collecting of the flocks in the circulating dye liquor are realized, and the normal use of the dyeing machine is ensured.

Referring to fig. 3, a chute 32 is formed in the filtering tank 3, the chute 32 is perpendicular to the flowing direction of the dye liquor, a filtering box 31 is slidably connected to the chute 32, the cross-sectional shape of the filtering box 31 is matched with that of the filtering tank 3, and the filtering box 31 is used for filtering and collecting the flocks in the dye liquor. The filter box 31 can be conveniently detached and installed from the chute 32, so that the filter box 31 is convenient to clean, and long-term normal use of the dyeing machine is facilitated.

Referring to fig. 2 and 3, the filter box 31 is a cuboid, a check plate 311 is fixedly connected to one side of the filter box 31 close to the return pipe 21, a filter screen 312 is fixedly connected to one side of the filter box close to the liquid supply pipe 22, a plurality of evenly distributed check holes 3111 are formed in the check plate 311, check elastic pieces 3112 for one-way passage of flock are connected to one side of the check holes close to the liquid supply pipe 22, and the check elastic pieces 3112 are made of soft rubber materials and have certain elasticity. The check elastic piece 3112 is disposed parallel to the check plate 311 and has one side fixedly connected with the check plate 311, and the other side abuts against the check plate 311 under the elastic effect thereof, and the check elastic piece 3112 has an area larger than that of the corresponding check hole 3111 and completely covers the check hole 3111. When the dye solution flows through the check plate 311 from the side near the return pipe 21 to the side near the liquid supply pipe 22, the check elastic piece 3112 is pressed and bent by the pressure, the dye solution carries the flock through the check hole 3111 into the filter tank 31, when the dye solution passes through the filter net 312, the flock is filtered out, the two non-return elastic pieces 3112 cannot be reversely bent, the flock cannot reversely pass through the non-return holes 3111, and finally the flock is collected in the filter box 31.

Referring to fig. 3, a replacement groove 33 matched with the filter tank 31 is formed in the filter tank 3, the replacement groove 33 is parallel to the sliding groove 32, a cleaning frame 34 which is horizontally arranged is vertically and slidably connected in the filter tank 3, the cleaning frame 34 is located between the sliding groove 32 and the filter tank, a cleaning filter screen 341 is fixedly connected to the cleaning frame 34, and the sliding groove 32 and the filter tank 31 in the replacement groove 33 are all in butt joint with the cleaning frame 34. The replacement groove 33 is additionally arranged, the sliding groove 32 and the replacement groove 33 can be used alternately, when the filter box 31 needs to be cleaned, the other clean filter box 31 can be firstly slid into the sliding groove 32 or the replacement groove 33, at the moment, the two filter boxes 31 are simultaneously arranged in the filter tank 3, the cleaning frame 34 is generally arranged at the bottom end of the filter tank 3, at the moment, the cleaning frame 34 can be lifted upwards, the cleaning filter screen 341 is utilized to filter flocks between the sliding groove 32 and the replacement groove 33, and then the filter box 31 needing to be cleaned can be slid out and cleaned without suspending dyeing operation.

Referring to fig. 3, the filter tank 3 is provided with a cover plate 35, a displacement cylinder 36 is fixedly connected to the cover plate 35, and a telescopic shaft of the displacement cylinder 36 is vertically arranged downwards and is fixedly connected with the cleaning frame 34. The filtering ponds 3 and the cleaning frame 34 are generally large, manual lifting is time-consuming and labor-consuming, and has a certain danger, and the lifting of the cleaning frame 34 is controlled by utilizing the displacement cylinder 36, so that the working efficiency can be effectively improved, and the danger of operators can be reduced.

Referring to fig. 1 and 4, the filter tank 3 is fixedly connected with slide rail 371 that the level set up, slide rail 371 sets up perpendicular to dye liquor direction of movement, and sliding connection has scraper 372 on the slide rail 371, and scraper 372 length direction is parallel to dye liquor direction of movement, and when clearance frame 34 promoted to the highest position, scraper 372 bottom and clearance frame 34 top butt, two discharge gates 375 that match with scraper 372 have been seted up to filter tank 3 lateral wall. The side wall of the filter tank 3 is rotationally connected with a threaded rod 373 which is arranged in parallel, the threaded rod 373 is perpendicular to the movement direction of the dye liquor, the scraping plate 372 is in threaded connection with the threaded rod 373, the side wall of the filter tank 3 is fixedly connected with a rotating motor 374, and an output shaft of the rotating motor 374 is fixedly connected with the threaded rod 373. The threaded rod 373 is driven to rotate by the rotating motor 374, so that the scraping plate 372 is driven to slide to scrape off the flock on the cleaning filter screen 341, the cleaning frame 34 (refer to fig. 3) is not required to be detached for cleaning, and the cleaning efficiency is improved.

The implementation principle of the water circulation dyeing device provided by the embodiment of the utility model is as follows: the dye is placed in the dyeing chamber 11 of the dyeing tank 1, the spray head 111 sprays dye liquor to dye the dye, and the redundant dye liquor can carry flocks and flow into the recovery chamber 12 through the through holes 13 under the action of gravity. Dye liquor in the recovery cavity 12 flows into the filter tank 3 through the return pipe 21 and is filtered through the filter box 31, the filtered flocks are collected in the filter box 31, the filter box 31 can be alternately arranged in the sliding groove 32 and the replacing groove 33, the flocks between the sliding groove 32 and the replacing groove 33 are cleaned through the cleaning frame 34, the filtered dye liquor is pumped to the spray head 111 again through the liquid supply pipe 22 and the circulating pump 221 for use, and the filter tank 3 can be filled with the dye liquor at any time. The filtering and collecting of the flocks in the circulating dye liquor are realized, and the normal use of the dyeing machine is ensured.

Embodiment two:

referring to fig. 5 and 6, a communicating chute 38 is provided in the side wall of the filtering tank 3, and both ends of the communicating chute 38 are respectively communicated with the chute 32 and the replacement chute 33 for sliding the filtering tank 31 between the chute 32 and the replacement chute 33. The filter tank 31 is close to the filter tank 3 lateral wall both sides and has been seted up fixed orifices 313, all seted up the locking hole 39 with fixed orifices 313 assorted on spout 32 and the replacement groove 33, when the filter tank 31 in the spout 32 and the butt of filter tank 3 bottom, fixed orifices 313 and the locking hole 39 on the spout 32 communicate each other, when the filter tank 31 in the replacement groove 33 and the butt of filter tank 3 bottom, fixed orifices 313 and the locking hole 39 on the replacement groove 33 communicate each other, fixed orifices 313 sliding connection has bolt 3131, bolt 3131 can insert simultaneously and locate in fixed orifices 313 and the locking hole 39 of intercommunication.

Referring to fig. 5 and 6, when the filter box 31 located at the side close to the liquid supply pipe 22 is replaced, the filter box 31 can be horizontally slid into the slide groove 32 or the replacement groove 33 at the side close to the return pipe 21 directly through the communication slide groove 38, and the fixing hole 313 and the locking hole 39 are fixed through the bolt 3131, so that the position of the filter box 31 is fixed, and flock between the slide groove 32 and the replacement groove 33 is collected by the filter box 31 in the process. The cleaned filter box 31 directly slides into the sliding groove 32 or the replacing groove 33 near one side of the liquid supply pipe 22, and the filter box 31 to be cleaned slides out of the cleaning, so that the flock between the sliding groove 32 and the replacing groove 33 is prevented from directly entering the liquid supply pipe 22.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (8)

1. The utility model provides a water circulation's dyeing apparatus, includes dyeing case (1) and circulation pipeline (2), its characterized in that: still include filtering ponds (3), be equipped with dyeing chamber (11) and retrieve chamber (12) in dyeing case (1), set up a plurality of through-holes (13) that are used for intercommunication dyeing chamber (11) and retrieve chamber (12) on dyeing case (1), be equipped with shower nozzle (111) that are used for spraying the dye liquor in dyeing chamber (11), circulation pipeline (2) are including back flow (21) and feed pipe (22), filtering ponds (3) one end is through back flow (21) intercommunication retrieval chamber (12), the other end is through feed pipe (22) intercommunication shower nozzle (111), be equipped with circulating pump (221) that are used for the pumping dye liquor on feed pipe (22), be equipped with rose box (31) in filtering ponds (3), rose box (31) are close to back flow (21) one side and are equipped with non return plate (311), be equipped with filter screen (312) close to feed pipe (22) one side, a plurality of non return holes (3111) have been seted up on non return plate (311), non return hole (3111) department is close to feed pipe (22) one side and is connected with non return elastic sheet (3112) that are used for restricting the one-way of batting.

2. A water circulation dyeing apparatus according to claim 1, wherein: a chute (32) is formed in the filter tank (3), the chute (32) is perpendicular to the flowing direction of the dye liquor, and the filter box (31) is connected in the chute (32) in a sliding mode.

3. A water circulation dyeing apparatus according to claim 2, wherein: a replacement groove (33) matched with the filter box (31) is formed in the filter tank (3), and the replacement groove (33) is perpendicular to the flowing direction of the dye liquor.

4. A water circulation dyeing apparatus according to claim 3, wherein: the filter tank is characterized in that a cleaning frame (34) which is horizontally arranged is vertically and slidably connected in the filter tank (3), a cleaning filter screen (341) is arranged on the cleaning frame (34), the cleaning frame (34) is located between the sliding groove (32) and the replacement groove (33), and the filter boxes (31) located in the sliding groove (32) and the replacement groove (33) are all in butt joint with the cleaning frame (34).

5. A water circulation dyeing apparatus according to claim 4, wherein: the filter tank (3) is provided with a cover plate (35), a displacement cylinder (36) is fixedly connected to the cover plate (35), and a telescopic shaft of the displacement cylinder (36) is vertically downwards arranged and fixedly connected with the cleaning frame (34).

6. A water circulation dyeing apparatus according to claim 5, wherein: be connected with slide rail (371) that the level set up on filtering ponds (3), slide rail (371) perpendicular to dye liquor direction of movement set up, sliding connection has scraper blade (372) that the level set up on slide rail (371), and scraper blade (372) are on a parallel with dye liquor direction of movement setting, and when clearance frame (34) promoted to the highest position, scraper blade (372) and clearance frame (34) butt, two discharge gates (375) that match with scraper blade (372) have been seted up to filtering ponds (3) lateral wall.

7. A water circulation dyeing apparatus according to claim 6, wherein: the side wall of the filter tank (3) is rotationally connected with a threaded rod (373) which is arranged in parallel, the threaded rod (373) is perpendicular to the movement direction of the dye liquor, the scraping plate (372) is in threaded connection with the threaded rod (373), the side wall of the filter tank (3) is fixedly connected with a rotary motor (374), and an output shaft of the rotary motor (374) is fixedly connected with the threaded rod (373).

8. A water circulation dyeing apparatus according to claim 1, wherein: a communicating chute (38) for sliding the filter tank (31) between the chute (32) and the replacing groove (33) is formed in the side wall of the filter tank (3), two ends of the communicating chute (38) are respectively communicated with the chute (32) and the replacing groove (33), fixing holes (313) are formed in two sides of the side wall of the filter tank (31) close to the filter tank (3), locking holes (39) matched with the fixing holes (313) in shape and size are formed in the chute (32) and the replacing groove (33), when the filter tank (31) in the chute (32) is in butt joint with the bottom end of the filter tank (3), the fixing holes (313) are mutually communicated with the locking holes (39) in the replacing groove (33), and bolts (3131) are connected in a sliding mode in the fixing holes (313).