CN113480103A

CN113480103A - Wastewater treatment recovery unit for chemical fiber production

Info

Publication number: CN113480103A
Application number: CN202110846959.7A
Authority: CN
Inventors: 艾善雄; 汪浩祥; 牟名
Original assignee: Shaoxing Chengbang High Tech Fiber Technology Co ltd
Current assignee: Shaoxing Chengbang High Tech Fiber Technology Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-10-08
Anticipated expiration: 2041-07-27
Also published as: CN113480103B

Abstract

The invention discloses a wastewater treatment and recovery device for chemical fiber production, which comprises a precipitation tower, a filter box, a wastewater pipe and a treatment device arranged in the precipitation tower and the filter box, wherein the treatment device comprises a stirring rod and a plurality of connecting rods, the wastewater pipe is fixedly connected with the top of the precipitation tower, a liquid supplementing device is arranged on the side wall of the precipitation tower, one end of the stirring rod is rotatably arranged at the top of the precipitation tower, a first motor is fixed at the top of the precipitation tower, an output shaft of the first motor penetrates through the precipitation tower and is connected with the stirring rod, a spraying device is arranged at the top of the precipitation tower, the connecting rods are all fixed on the side wall of the top of the stirring rod, a scraper matched with the inner wall of the precipitation tower is fixed at one end of the connecting rod far away from the stirring rod, a connecting component is arranged between the precipitation tower and the filter box, and the filter device is arranged in the filter box, so that the problems that the existing sewage treatment pool is incomplete and dirt can be attached to the pool wall to cause great inconvenience for subsequent cleaning, the sewage can not be neutralized by adjusting a proper regulator.

Description

Wastewater treatment recovery unit for chemical fiber production

Technical Field

The invention relates to a wastewater treatment and recovery device, in particular to a wastewater treatment and recovery device for chemical fiber production.

Background

The waste water is a general term of water and runoff rainwater drained in the process of activities of residents. It includes domestic sewage, industrial waste water and other useless water such as the initial rain flows into the sewer canal, generally refers to the water that does not utilize or does not utilize the value.

The existing chemical fiber production wastewater treatment device is only a common wastewater treatment tank, and the chemical fiber production wastewater is treated by only adding a corresponding acidic or alkaline regulator into the chemical fiber production wastewater for neutralization reaction and uniformly stirring. Many steps of the wastewater treated in the way are not perfect, and a proper regulator cannot be prepared according to the volume of the wastewater, so that dirt of the wastewater treatment tank is often attached to the tank wall after the wastewater treatment, and the subsequent cleaning is very inconvenient.

Disclosure of Invention

The invention aims to provide a wastewater treatment and recovery device for chemical fiber production, which solves the problems that the prior wastewater treatment tank has incomplete wastewater treatment, dirt can be attached to the tank wall to cause inconvenience in subsequent cleaning, and a proper regulator cannot be regulated to neutralize the wastewater.

The technical purpose of the invention is realized by the following technical scheme:

a wastewater treatment and recovery device for chemical fiber production comprises a precipitation tower, a filter box, a wastewater pipe and a treatment device arranged in the precipitation tower and the filter box, wherein the treatment device comprises a stirring rod and a plurality of connecting rods, the wastewater pipe is fixedly connected with the top of the precipitation tower, a liquid supplementing device for adding a neutralizing agent into the precipitation tower is arranged on the side wall of the precipitation tower, one end of the stirring rod is rotatably arranged at the top of the precipitation tower, a first motor is fixed at the top of the precipitation tower, an output shaft of the first motor penetrates through the precipitation tower and is connected with the stirring rod, a spraying device for cleaning the precipitation tower is arranged at the top of the precipitation tower, the connecting rods are all fixed on the side wall of the top of the stirring rod, a scraper matched with the inner wall of the precipitation tower is fixed at one end, away from the stirring rod, of the connecting rod, and a connecting assembly for connection is arranged between the precipitation tower and the filter box, and a filtering device for filtering wastewater is arranged in the filtering tank.

By adopting the technical scheme, when the wastewater needs to be treated, the wastewater enters the precipitation tower through the wastewater pipe, the liquid supplementing device is started, the liquid supplementing device is used for supplementing a proper regulator in the precipitation tower, so that the pH value of the wastewater is neutralized, the first motor is started, the output shaft of the first motor drives the stirring rod to rotate, the regulator can be quickly blended into the wastewater by the stirring rod, the stirring rod also drives the connecting rod to rotate in the rotating process, the connecting rod drives the scraper to rotate, the inner wall of the precipitation tower can be continuously scraped to prevent dirt from adhering to the inner wall by the scraper, after the wastewater and the regulator are mixed, the connecting assembly is started to discharge the wastewater in the precipitation tower into the filter box, after the wastewater enters the filter box, the spraying device is started to spray the inner wall of the precipitation tower, and the scraper continuously rotates to clean the precipitation tower in the spraying process, the cleaned waste water is discharged into the filter box, and the waste water is treated and recycled by utilizing a filter device in the filter box.

Preferably, the filtering device comprises an activated carbon filter screen, a sewage filler and a screen, three first wide grooves are formed in the side wall of the filtering box, limiting plates are symmetrically fixed on the side wall of each first wide groove, the screen, the sewage filler and the activated carbon filter screen are arranged between the two limiting plates in a sliding mode, the screen, the sewage filler and the activated carbon filter screen are sequentially arranged from high to low, sealing plates are fixed on one sides of the screen, the sewage filler and the activated carbon filter screen close to the first wide grooves, activated carbon in the activated carbon filter screen is of a powder structure, annular magic tapes are fixed at the top and the bottom of the activated carbon filter screen, a sponge cushion with the thickness of 1-2 cm is fixed on the activated carbon filter screen through the magic tapes, a cleaning device for cleaning the screen is arranged in the filtering box, and a drain hole is formed in the bottom of the filtering box, and a control valve is fixed in the drainage hole.

By adopting the technical scheme, when the wastewater enters the filter box, impurities in the wastewater are firstly filtered through the screen, the wastewater is purified and filtered through the sewage filler, when the wastewater passes through the filler layer in the vertical direction, the biomembrane attached to and growing on the filler utilizes the dissolved oxygen in the water to carry out oxidative decomposition on the pollutants and the filler filters and intercepts suspended matters in the wastewater, the pollutants in the wastewater are jointly removed, the wastewater after primary filtration is secondarily filtered through the activated carbon filter screen, thereby achieving the purification effect, the activated carbon is powdery, the total area of the powdery activated carbon is the largest, the adsorption effect is the best, the sponge cushion is utilized to play a role in shielding the activated carbon filter screen, the powdery activated carbon is prevented from being flushed out of the filter screen under the washing of the wastewater, when the screen, the sewage filler and the activated carbon filter screen need to be replaced after a long time, thereby make to take it out from the limiting plate and can change through closing plate pulling screen cloth, sewage filler, active carbon filter screen, the screen cloth still can utilize cleaning device to collect the processing to the impurity of screen cloth flashtube at the in-process of taking out, accomplishes the back when waste water treatment, opens control flap to can be with the log raft play through handling, make can recycle.

As preferred, cleaning device includes swash plate and screen cloth bag, the swash plate is fixed at a wide flute top that the screen cloth corresponds, the swash plate bottom is fixed with the brush, brush and screen cloth top contact, the screen cloth is kept away from the one end of wide flute one and has been seted up the ladder groove, the screen cloth is run through to the one end in ladder groove, a plurality of connecting holes have been seted up on the ladder groove, be fixed with on the screen cloth bag a plurality ofly have the spliced pole with the connecting hole cooperation, the one end of screen cloth bag is passed through the briquetting and is fixed on the ladder groove.

Adopt above-mentioned technical scheme, when the screen cloth is in long-term use, when the in service behavior of observation screen cloth needs to be taken out with the screen cloth, outside pulling screen cloth, the screen cloth is at the in-process that outwards removes, the screen cloth is constantly scraped to the brush on the swash plate, thereby can play the impurity collection on the screen cloth, the continuous slip of screen cloth, make the brush constantly promote impurity and ladder groove contact, thereby in pushing into the screen cloth bag with impurity, utilize the screen cloth bag to collect impurity, after the filter box is taken out to the screen cloth, upwards stimulate the screen cloth bag, make and fix spliced pole on the screen cloth bag and break away from the connecting hole, the screen cloth bag is not receiving fixedly, thereby can follow the trade to the screen cloth bag.

Preferably, the spraying device comprises a water storage tank and a first water pumping device, one end of the first water pumping device is connected with the water storage tank, the other end of the first water pumping device is connected with a spraying pipe, and the spraying pipe is fixed in the settling tower.

By adopting the technical scheme, when the spray cleaning is needed in the settling tower, the first water pumping device is started, water in the water storage tank is pumped out through the first water pumping device and is discharged into the spray pipe, and the inner wall of the spray pipe phase settling tower is sprayed by water so that the inner wall can be washed.

Preferably, the liquid supplementing device comprises a liquid storage tank and a second water pumping device, a second wide groove is formed in the side wall of the settling tower, a transparent plate is fixed on the second wide groove, water level scale marks are arranged on the transparent plate, a liquid inlet hole is formed in the top of the liquid storage tank, one end of the second water pumping device is fixedly connected with the liquid storage tank, and the other end of the second water pumping device is fixedly connected with the side wall of the settling tower.

Adopt above-mentioned technical scheme, after sewage all got into in the sedimentation tower, observe the volume of sewage according to the water level scale looks to the regulator of allotment department phase matching volume pours the regulator into the liquid reserve tank through the feed liquor hole in, starts pumping device two, through pumping device two with the leading-in sedimentation tower of regulator in the liquid reserve tank in, thereby can carry out the neutralization to the acid-base nature of sewage.

As preferred, coupling assembling includes water pipe one and water pipe two, the one end and the bottom fixed connection of precipitation tower of water pipe one, water pipe one internal fixation has solenoid electric valve, the other end of water pipe one is connected with the water pump, water pipe two is kept away from the one end of water pipe one with the water pump and is connected, the one end and the rose box fixed connection of water pump are kept away from to water pipe two.

By adopting the technical scheme, when the regulated sewage needs to be filtered, the electromagnetic control valve is firstly opened, and the water pump is started to suck the sewage of the settling tower into the water pump by utilizing the first water pipe and then enters the filter tank through the second water pipe.

Preferably, a controller is fixed on the precipitation tower.

By adopting the technical scheme, the controller is used for controlling the running states of the motor I, the pumping device II and the water pump, so that the motor I, the pumping device II and the water pump are always in proper running states.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a schematic view showing a precipitation column according to an embodiment;

FIG. 3 is a schematic half-section view showing a precipitation column according to the embodiment;

FIG. 4 is a schematic half-section view of the embodiment showing a filter box;

FIG. 5 is a schematic view of the cleaning device in the filter box according to the embodiment.

Reference numerals: 1. a precipitation tower; 2. a filter box; 3. a waste pipe; 4. a processing device; 5. a stirring rod; 6. a connecting rod; 7. a liquid supplementing device; 8. a first motor; 9. a spraying device; 10. a squeegee; 11. a connecting assembly; 12. a filtration device; 13. an active carbon filter screen; 14. sewage filling; 15. screening a screen; 16. a first wide groove; 17. a limiting plate; 18. a sealing plate; 19. a ring-shaped magic tape; 20. a sponge cushion; 21. a cleaning device; 22. a sloping plate; 23. screening the bag; 24. a brush; 25. a stepped groove; 26. connecting columns; 27. a water storage tank; 28. a first water pumping device; 29. a shower pipe; 30. a liquid storage tank; 31. a second water pumping device; 32. a second wide groove; 33. a transparent plate; 34. water level scale lines; 35. a liquid inlet hole; 36. a first water pipe; 37. a water pipe II; 38. an electromagnetic control valve; 39. a water pump; 40. a controller; 41. a drain hole; 42. a control valve; 43. and connecting the holes.

Detailed Description

The following description is only a preferred embodiment of the present invention, and the protection scope is not limited to the embodiment, and any technical solution that falls under the idea of the present invention should fall within the protection scope of the present invention. It should also be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention.

Referring to fig. 1 to 5, a wastewater treatment and recovery device for chemical fiber production, comprising a precipitation tower 1, a filter tank 2, a wastewater pipe 3, and a treatment device 4 arranged in the precipitation tower 1 and the filter tank 2, wherein the treatment device 4 comprises a stirring rod 5 and a plurality of connecting rods 6, the wastewater pipe 3 is fixedly connected with the top of the precipitation tower 1, a liquid supplementing device 7 for adding a neutralizing agent to the precipitation tower 1 is arranged on the side wall of the precipitation tower 1, when wastewater needs to be treated, the wastewater enters the precipitation tower 1 through the wastewater pipe 3, the liquid supplementing device 7 is started, a proper regulator is supplemented into the precipitation tower 1 by the liquid supplementing device 7, so as to neutralize the acidity and alkalinity of the wastewater, the liquid supplementing device 7 comprises a liquid storage tank 30 and a water pumping device two 31, a wide groove two 32 is arranged on the side wall of the precipitation tower 1, a transparent plate 33 is fixed on the wide groove two 32, and a water level scale mark 34 is arranged on the transparent plate 33, after in sewage all got into the sedimentation tower 1, observe the volume of sewage according to the water level scale looks, thereby allotment department phase matching volumetric regulator, feed liquor hole 35 has been seted up at liquid reserve tank 30 top, pour the regulator into liquid reserve tank 30 in through feed liquor hole 35, the one end and the liquid reserve tank 30 fixed connection of two 31 pumping devices, the other end of two 31 pumping devices and the lateral wall fixed connection of sedimentation tower 1, be fixed with controller 40 on the sedimentation tower 1, start two 31 pumping devices through controller 40, in leading-in sedimentation tower 1 of regulator in with the liquid reserve tank 30 through two 31 pumping devices, thereby can carry out neutralization to the acid-base of sewage.

As fig. 3, the one end of puddler 5 is rotated and is set up at 1 top of precipitation tower, 1 top of precipitation tower is fixed with motor 8, through controller 40 starter motor 8, the output shaft of motor 8 runs through precipitation tower 1 and is connected with puddler 5, the output shaft of motor 8 drives puddler 5 and rotates, utilize puddler 5 to make the regulator can melt into the waste water fast, each connecting rod 6 is all fixed on 5 top lateral walls of puddler, puddler 5 still drives connecting rod 6 at the pivoted in-process and rotates, the one end that puddler 5 was kept away from to connecting rod 6 is fixed with and deposits 1 inner wall complex scraper blade 10 of tower, utilize connecting rod 6 to drive scraper blade 10 and rotate, make the inner wall that can not stop scrape and move precipitation tower 1 through scraper blade 10 prevent that the dirt from attaching to on the inner wall.

As shown in fig. 1, a connecting assembly 11 for connection is arranged between a settling tower 1 and a filter tank 2, after sewage and a regulator are mixed, the connecting assembly 11 is started to discharge the sewage in the settling tower 1 into the filter tank 2, the connecting assembly 11 comprises a first water pipe 36 and a second water pipe 37, one end of the first water pipe 36 is fixedly connected with the bottom of the settling tower 1, an electromagnetic control valve 38 is fixed in the first water pipe 36, when the regulated sewage needs to be filtered, the electromagnetic control valve 38 is started by a controller 40 to enable the sewage to enter the first water pipe 36, the other end of the first water pipe 36 is connected with a water pump 39, the water pump 39 is started by the controller 40, the second water pipe 37 is connected with one end of the water pump 39 far away from the first water pipe 36, one end of the second water pipe 37 far away from the water pump 39 is fixedly connected with the filter tank 2, the water pump 39 sucks the sewage in the settling tower 1 into the water pump 39 by using the first water pipe 36, enters the filter box 2 through a water pipe II 37.

As shown in fig. 2 and 3, the settling tower 1 is provided at the top thereof with a spray device 9 for cleaning the settling tower 1, after the wastewater enters the filter tank 2, the spraying device 9 is started to spray the inner wall of the precipitation tower 1, the spraying device 9 comprises a water storage tank 27 and a first pumping device 28, one end of the first pumping device 28 is connected with the water storage tank 27, when the spray cleaning is needed to be carried out in the settling tower 1, the first water pumping device 28 is started through the controller 40, the other end of the first water pumping device 28 is connected with the spray pipe 29, the spray pipe 29 is fixed in the settling tower 1, the water in the water storage tank 27 is pumped out by the first water pumping device 28 and is discharged into the spray pipe 29, the water is sprayed by the inner wall of the spray pipe 29 phase precipitation tower 1 so as to wash the inner wall, the scraper 10 is continuously rotated in the spraying process so as to clean the settling tower 1, and the cleaned waste water is discharged into the filter tank 2.

As shown in fig. 4 and 5, a filtering device 12 for filtering wastewater is arranged in the filtering box 2, thereby utilizing the filtering device 12 in the filtering box 2 to treat and recycle wastewater, the filtering device 12 comprises an activated carbon filter screen 13, a sewage filler 14 and a screen 15, three wide grooves one 16 are arranged on the side wall of the filtering box 2, a limiting plate 17 is symmetrically fixed on the side wall of each wide groove one 16, the screen 15, the sewage filler 14 and the activated carbon filter screen 13 are all arranged between the two limiting plates 17 in a sliding manner, the two limiting plates 17 play a supporting role, the screen 15, the sewage filler 14 and the activated carbon filter screen 13 are sequentially arranged from high to low, when wastewater enters the filtering box 2, impurities in the wastewater are firstly filtered through the screen 15, the wastewater is purified and filtered through the sewage filler 14, when the wastewater passes through a filler layer in the vertical direction, a biomembrane attached to growth on the filler utilizes dissolved oxygen in the water to perform oxidative decomposition on the pollutants and the fillers to treat and recycle the pollutants in the wastewater The suspended solid filters the pollutant of holding back in the waste water jointly, waste water through prefilter carries out secondary filter through activated carbon filter screen 13, thereby purifying effect has been reached, the inside activated carbon of activated carbon filter screen 13 is powdered structure, the activated carbon is powdered, powdered activated carbon total area is the biggest, adsorption effect is best, and be fixed with annular magic subsides 19 on activated carbon filter screen 13 top and the bottom, activated carbon filter screen 13 is fixed with 1-2 centimetre thick foam-rubber cushion 20 through the magic subsides, thereby utilize foam-rubber cushion 20 to play the effect of sheltering from to activated carbon filter screen 13, prevent that powdered activated carbon from being washed out the filter screen under the washing away of waste water, paste 19 the change of being convenient for of realizing foam-rubber cushion 20 through annular magic.

The screen cloth 15, the sewage filler 14, one side that the active carbon filter screen 13 is close to first 16 of wide groove all is fixed with the closing plate 18, when screen cloth 15, the sewage filler 14, when the active carbon filter screen 13 needs to be changed after long-term, through closing plate 18 pulling screen cloth 15, the sewage filler 14, the active carbon filter screen 13 makes and takes out it from limiting plate 17 and can change, wash port 41 has been seted up to rose box 2 bottom, wash port 41 internal fixation has control flap 42, after waste water treatment accomplishes, open control flap 42, thereby can be with the row of handling discharge, make and to recycle.

As shown in fig. 5, a cleaning device 21 for cleaning the screen 15 is arranged in the filter tank 2, the screen 15 can also collect and process impurities in the flashtube of the screen 15 by using the cleaning device 21 in the process of being drawn out, the cleaning device 21 comprises an inclined plate 22 and a screen 15 bag, the inclined plate 22 is fixed at the top of a wide groove one 16 corresponding to the screen 15, a brush 24 is fixed at the bottom of the inclined plate 22, the brush 24 is in contact with the top of the screen 15, when the screen 15 needs to be taken out to observe the use condition of the screen 15 in the long-term use process, the screen 15 is pulled outwards, the brush 24 on the inclined plate 22 continuously scrapes the screen 15 in the process of moving the screen 15 outwards, so that the impurities on the screen 15 can be collected, a stepped groove 25 is formed at one end of the screen 15 far away from the wide groove one 16, one end of the stepped groove 25 penetrates through the screen 15, a plurality of connecting holes 43 are formed in the stepped groove 25, a plurality of connecting columns 26 matched with the connecting holes 43 are fixed in the screen bag 23, one end of screen cloth bag 23 is passed through the briquetting and is fixed on ladder groove 25, screen cloth 15's continuous slip, make brush 24 constantly promote impurity and the contact of ladder groove 25, thereby push screen cloth bag 23 with impurity in, utilize screen cloth bag 23 to collect impurity and play, after filter box 2 is taken out as screen cloth 15, upwards spur screen cloth bag 23, make spliced pole 26 on the screen cloth bag 23 break away from connecting hole 43, screen cloth 15 bag is not receiving fixedly, thereby can follow the trade to screen cloth 15 bag.

Claims

1. The utility model provides a waste water treatment recovery unit for chemical fiber production, includes sedimentation tower (1), rose box (2), waste pipe (3), its characterized in that, still including setting up processing apparatus (4) in sedimentation tower (1) and rose box (2), processing apparatus (4) include puddler (5) and a plurality of connecting rod (6), waste pipe (3) and sedimentation tower (1) top fixed connection, be provided with on the lateral wall of sedimentation tower (1) and be used for adding fluid infusion device (7) of neutralizer to sedimentation tower (1), the one end of puddler (5) is rotated and is set up at sedimentation tower (1) top, sedimentation tower (1) top is fixed with motor (8), the output shaft of motor (8) runs through sedimentation tower (1) and is connected with puddler (5), sedimentation tower (1) top is provided with spray set (9) each that are used for wasing sedimentation tower (1) connecting rod (6) all fix in puddler (5) top On the portion lateral wall, the one end that puddler (5) were kept away from in connecting rod (6) is fixed with sedimentation tower (1) inner wall complex scraper blade (10), be provided with coupling assembling (11) that are used for being connected between sedimentation tower (1) and rose box (2), be provided with filter equipment (12) that are used for filtering waste water in rose box (2).

2. The wastewater treatment and recovery device for chemical fiber production as claimed in claim 1, wherein the filtering device (12) comprises an activated carbon filter screen (13), a sewage filler (14) and a screen (15), the side wall of the filtering box (2) is provided with three first wide grooves (16), the side wall of each first wide groove (16) is symmetrically fixed with a limiting plate (17), the screen (15), the sewage filler (14) and the activated carbon filter screen (13) are arranged between the two limiting plates (17) in a sliding manner, the screen (15), the sewage filler (14) and the activated carbon filter screen (13) are sequentially arranged from high to low, the screen (15), the sewage filler (14) and the activated carbon filter screen (13) are respectively fixed with a sealing plate (18) at one side close to the first wide groove (16), and the activated carbon in the activated carbon filter screen (13) is in a powdered structure, and annular magic tapes (19) are fixed on the top and the bottom of the activated carbon filter screen (13), a sponge pad (20) with the thickness of 1-2 cm is fixed on the activated carbon filter screen (13) through the magic tapes, a cleaning device (21) for cleaning the screen (15) is arranged in the filter box (2), a drain hole (41) is formed in the bottom of the filter box (2), and a control valve (42) is fixed in the drain hole (41).

3. The wastewater treatment and recovery device for chemical fiber production of claim 2, characterized in that cleaning device (21) includes swash plate (22) and screen cloth bag (23), swash plate (22) are fixed at the first (16) top of wide groove that screen cloth (15) correspond, swash plate (22) bottom is fixed with brush (24), brush (24) and screen cloth (15) top contact, screen cloth (15) are kept away from the one end of wide groove (16) and are seted up ladder groove (25), screen cloth (15) are run through to the one end of ladder groove (25), a plurality of connecting holes (43) have been seted up on ladder groove (25), be fixed with on screen cloth bag (23) a plurality ofly have spliced pole (26) with connecting hole (43) cooperation, the one end of screen cloth bag (23) is fixed on ladder groove (25) through briquetting (26).

4. The wastewater treatment and recovery device for chemical fiber production as claimed in claim 1, wherein the spraying device (9) comprises a water storage tank (27) and a first pumping device (28), one end of the first pumping device (28) is connected with the water storage tank (27), the other end of the first pumping device (28) is connected with a spraying pipe (29), and the spraying pipe (29) is fixed in the settling tower (1).

5. The wastewater treatment and recovery device for chemical fiber production as claimed in claim 1, wherein the liquid supplementing device (7) comprises a liquid storage tank (30) and a second water pumping device (31), a second wide groove (32) is formed in the side wall of the precipitation tower (1), a transparent plate (33) is fixed on the second wide groove (32), water level scale marks (34) are arranged on the transparent plate (33), a liquid inlet hole (35) is formed in the top of the liquid storage tank (30), one end of the second water pumping device (31) is fixedly connected with the liquid storage tank (30), and the other end of the second water pumping device (31) is fixedly connected with the side wall of the precipitation tower (1).

6. The wastewater treatment and recovery device for chemical fiber production as claimed in claim 1, wherein the connection assembly (11) comprises a first water pipe (36) and a second water pipe (37), one end of the first water pipe (36) is fixedly connected with the bottom of the settling tower (1), an electromagnetic control valve (38) is fixed in the first water pipe (36), the other end of the first water pipe (36) is connected with a water pump (39), the second water pipe (37) is connected with one end of the water pump (39) far away from the first water pipe (36), and one end of the second water pipe (37) far away from the water pump (39) is fixedly connected with the filter box (2).

7. The wastewater treatment and recovery device for chemical fiber production as claimed in claim 1, wherein a controller (40) is fixed on the settling tower (1).