CN115745278A - Textile printing and dyeing wastewater treatment device and treatment process - Google Patents

Abstract

The invention discloses a textile printing and dyeing wastewater treatment device which comprises a first continuous filtering bin and a second continuous filtering bin, wherein the first continuous filtering bin and the second continuous filtering bin are of the same structure, and an aeration flocculation tank is arranged between the first continuous filtering bin and the second continuous filtering bin. Has the advantages that: the invention adopts a mode of uninterrupted wastewater treatment, plays roles of continuous filtration and anti-blocking impurity removal through the first continuous filtration bin and the second continuous filtration bin, obviously improves the filtration efficiency, has the advantages of good cleaning effect, no abrasion and the like because the filter screen is cleaned through high-voltage pulse back flushing, obviously reduces the aperture of the filter screen, improves the refinement level of filtration, further improves the efficiency of continuous filtration, improves the wastewater treatment efficiency, simultaneously saves the trouble that the traditional sedimentation tank needs to clean precipitated sludge independently through the aeration flocculation tank, further improves the convenience of wastewater treatment, and obviously improves the treatment efficiency of textile printing and dyeing wastewater.

Description

Textile printing and dyeing wastewater treatment device and treatment process

Technical Field

The invention relates to the field of textile wastewater treatment, in particular to a textile printing and dyeing wastewater treatment device and a treatment process.

Background

The textile printing and dyeing wastewater in the printing and dyeing wastewater treatment has the characteristics of large water quantity, high organic pollutant content, large alkalinity, large water quality change and the like, belongs to one of industrial wastewater difficult to treat, contains dye, slurry, auxiliary agent, oil agent, acid and alkali, fiber impurities, sand substances, inorganic salt and the like, and the main methods for treating the printing and dyeing wastewater at present comprise a physical and chemical method, a biochemical method, a chemical method and a treatment method combining a plurality of processes.

The textile printing and dyeing wastewater needs to be filtered in the pretreatment stage, traditional filtering equipment comprises a rotary mechanical grating machine, a net type rotating chain grating machine, a fixed grating machine, a reverse cutting type rotating fine grating machine and the like, the grating machines can filter limit impurities and other solid impurities when wastewater enters water and discharge the impurities, however, in order to avoid blocking of screen holes by the impurities, the filtering apertures of the equipment are generally large, the continuous filtering efficiency is low, most of fine screens with small apertures are obliquely and fixedly installed, the problems of high difficulty in slag cleaning and influence on the treatment effect are solved, improvement can be further made, after retrieval, the application documents with the publication numbers of CN101549940B, CN 3252 zxft 52C and CN108658365A are found, the precipitated wastewater can be obtained, impurities can be conveniently separated, the treatment waiting time is increased, the continuous treatment efficiency of the wastewater treatment is influenced, the continuous treatment efficiency of the wastewater is reduced, the sludge flocculation speed of the sludge flocculation paddle used in the later stage is increased, and the sewage flocculation speed of CN 3425 is increased.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a textile printing and dyeing wastewater treatment device and a treatment process, which have the advantage of improving the treatment efficiency of the textile printing and dyeing wastewater, and further solve the problems in the background art.

(II) technical scheme

In order to realize the advantage of improving the treatment efficiency of the textile printing and dyeing wastewater, the invention adopts the following specific technical scheme:

the utility model provides a textile printing and dyeing wastewater treatment device, includes first continuous filtration storehouse and the continuous filtration storehouse of second, first continuous filtration storehouse and the continuous filtration storehouse of second are the same structure, and are provided with aeration flocculation case between first continuous filtration storehouse and the continuous filtration storehouse of second to through connection first delivery pump between aeration flocculation case and the continuous filtration storehouse, the continuous filtration storehouse opposite side of second is provided with the oxidation case, and through connection has the second delivery pump between oxidation case and the continuous filtration storehouse of second, and the oxidation case other end through first raceway and CMF system through connection, CMF system goes out the liquid end and is through connection with reverse osmosis system feed liquor end.

Further, first continuous filtration storehouse is including filtering box, filter disc, flitch, filter screen, conveyer, driving motor, main shaft, air compressor machine, gas-supply pipe, pulse valve, arc pipe, blowing head, top storehouse, center plate and standpipe, and filters box top surface fixed mounting and have a storehouse to filter box top surface through connection has the filter disc, filter disc one end inner wall fixedly connected with filter screen, and filter screen center fixedly connected with center plate, filter box one end fixedly connected with driving motor, and the driving motor output is connected with the main shaft, and the main shaft runs through center plate and with center plate fixed connection, the main shaft other end runs through the filter box and is connected with the rotation of filter box, the filter disc inner wall is located filter screen one side isogonism fixedly connected with flitch, and flitch one side is located the storehouse inside and is located filter box top surface mount and is equipped with the conveyer, the inside mount in top storehouse is equipped with the arc pipe, and the vertical through connection of arc pipe one end has the standpipe to the arc pipe opposite side is located filter box top surface fixed mounting has the air compressor machine, the air compressor machine output end passes through the gas-supply pipe and is connected with the filter screen other end through the gas-supply pipe surface, and arc pipe surface mounting has the air outlet pipe, and all have a through connection, and blow the blowing head, and filter box directional sliding connection of direction with filter box.

Further, aeration flocculation case is including handling box, first baffler, diaphragm pump, drug extraction pipe, spray tube, shower nozzle, air-blower, intake pipe and shunt tubes, and handles box one end top surface fixed mounting has the diaphragm pump to diaphragm pump feed inlet end through connection has drug extraction pipe, diaphragm pump liquid outlet end through connection has the spray tube, and the spray tube bottom surface runs through and handles box through connection and has the shower nozzle, the inside fixed mounting of processing box has first baffler, and first baffler staggered arrangement to handle box top surface through connection has the shunt tubes, the shunt tubes bottom surface extends to between the first baffler, and shunt tubes top surface through connection has the intake pipe, and the intake pipe other end through connection has the air-blower.

Further, the oxidation case includes ozone treatment case, second baffle, ozone delivery pipe and ozone outlet pipe, and the inside fixed mounting of ozone treatment box has the second baffle to second baffle staggered arrangement, ozone treatment box top surface through connection has the ozone outlet pipe, and the ozone outlet pipe extends to between the second baffle to ozone outlet pipe top surface through connection has the ozone delivery pipe.

Furthermore, handle box one end and first delivery pump delivery pipe through connection, and handle the box other end and filter box one end through connection in the second continuous filtration storehouse to first delivery pump inlet end and the filtration box through connection in the first continuous filtration storehouse.

Furthermore, the liquid inlet end of the second conveying pump is in through connection with the other end of the second continuous filtering bin, the liquid outlet end of the second conveying pump is in through connection with one end of the ozone treatment box, and the other end of the ozone treatment box is in through connection with the first water conveying pipe.

Further, the arc-shaped pipe surface blowing head is aligned to the inner wall of the filter disc, and the vertical pipe surface blowing head is aligned to the vertical central line of the filter screen.

Further, the medicine pumping pipe is communicated with a liquid flocculant medicine box.

Further, the ozone delivery pipe is communicated with the output end of the ozone generator.

A textile printing and dyeing wastewater treatment process comprises a textile printing and dyeing wastewater treatment device, and the specific process flow is as follows:

the first process is as follows: in the front filtering stage, the textile printing and dyeing wastewater enters a filtering box body of a first continuous filtering bin under the conveying of a water pump, a driving motor is started to drive a filtering disc to rotate so as to drive a filtering screen to rotate, the textile printing and dyeing wastewater passes through the filtering screen, impurities are turned out by a material plate, and the textile printing and dyeing wastewater enters a treatment box body through the pumping of a first conveying pump;

and a second process: in the aeration flocculation stage, the textile printing and dyeing wastewater entering the treatment box passes through the lower part of a spray head, a diaphragm pump is started to extract a liquid flocculant, the liquid flocculant is sprayed into the textile printing and dyeing wastewater through the spray head to finish dosing, then the textile printing and dyeing wastewater continuously flows to pass through first baffle plates which are arranged in a staggered manner to move in a continuous S shape to flocculate, meanwhile, an air blower is started to inject outside air into a gas conveying pipe and flow out through a flow dividing pipe to form aeration, and the textile printing and dyeing wastewater flows out of the treatment box to finish aeration flocculation and then enters a filter box of a second continuous filter bin;

and a third process: in the middle filtering stage, a driving motor of the second continuous filtering bin is started to drive the filtering disc to rotate so as to drive the filtering net to rotate, the textile printing and dyeing wastewater passes through the filtering net, the flocculated impurities are turned out by the material plate, and the textile printing and dyeing wastewater enters the ozone treatment box through the pumping of the second conveying pump;

and a fourth process: in the oxidation stage, the textile printing and dyeing wastewater entering the ozone treatment box continuously advances along the second baffle plate in an S shape, in the moving process, the ozone conveying pipe conveys ozone into the ozone outflow pipe, the ozone oxidizes the textile printing and dyeing wastewater to complete the oxidation process, and then the textile printing and dyeing wastewater flows into the CMF system through the first water conveying pipe;

and a fifth process: in the continuous ultrafiltration stage, the textile printing and dyeing wastewater enters the reverse osmosis system through a second water pipe after being subjected to continuous ultrafiltration by the CMF system;

and a sixth process: and in the reverse osmosis filtration stage, the textile printing and dyeing wastewater entering the reverse osmosis filtration system is subjected to reverse osmosis treatment and then flows back to the textile printing and dyeing process.

(III) advantageous effects

Compared with the prior art, the invention provides a textile printing and dyeing wastewater treatment device and a treatment process, and the device has the following beneficial effects:

(1) When the textile printing and dyeing wastewater treatment is started, wastewater firstly passes through the first continuous filtering bin, firstly enters the filtering box body and is filtered by the filtering net, the filtered wastewater is conveyed into the aeration flocculation tank through the first conveying pump, intercepted solid impurities are conveyed out of the filtering box body to the top bin under the rotation of the material plate, the air compressor is started to generate high-pressure pulse airflow through the pulse valve, the high-pressure pulse airflow is blown out along the blowing head through the arc-shaped pipe and the vertical pipe, the solid impurities on the surfaces of the filtering net and the material plate are blown off through high-pressure pulse wind power, the solid impurities fall into the conveyor through the high-pressure drum and are conveyed out of the top bin, the wastewater impurities entering the aeration flocculation tank are filtered by the first continuous filtering bin, the solid impurities generated in the aeration flocculation filtering process are filtered by the second continuous filtering bin, the filtering modes are the same, compared with the traditional filtering equipment, the filtering disc rotates under the driving of the driving motor, the position of the filtering net is changed, the blockage is avoided, the filtering efficiency is improved, meanwhile, the filtering efficiency can be remarkably improved, the filtering efficiency of the solid impurities generated in the continuous filtering net cleaning mode, the filtering net can be further improved, and the filtering efficiency of the back blowing, and the filtering efficiency is improved.

(2) The invention adopts the aeration flocculation tank, the wastewater enters the aeration flocculation tank after being filtered by the first continuous filtering bin and accelerated by the first conveying pump, the wastewater firstly passes below the spray nozzle, the liquid flocculant is pumped by the diaphragm pump and sprayed in the wastewater through the spray nozzle, the dynamic dosing process is completed, the dosing uniformity is improved, meanwhile, the wastewater advances along the first baffle plate in a continuous S shape when passing through the aeration flocculation tank, the wastewater continuously collides with the first baffle plate to generate wastewater sloshing, the mixing with the liquid flocculant is accelerated, the flocculation is completed, the trouble of accelerated mixing required by the traditional equipment for stirring is saved, the flocculation process is completed in the moving process, meanwhile, in the wastewater moving process, the air blower injects air into the wastewater to form aeration, the acceleration flocculation process is realized, the sedimentation is not required after the flocculation is completed, the wastewater directly passes through the second continuous filtering bin for filtering, the sedimentation waiting time is saved, the wastewater treatment efficiency is obviously improved, the wastewater treatment time is shortened, and the sludge treatment efficiency is further improved as the sludge treatment is realized.

(3) The invention adopts a mode of uninterrupted wastewater treatment, wastewater filtered by a second continuous filtering bin enters an oxidation tank, and then enters an ozone treatment tank, and then moves in a continuous S shape along a second baffle plate to collide with the second baffle plate and prolong the moving path, and simultaneously, ozone continuously flows out along an ozone outflow pipe through an ozone conveying pipe, and the wastewater in the flow is oxidized to remove chromaticity and COD, thereby showing the membrane pollution problem in a later stage CMF system and a reverse osmosis system.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a textile printing and dyeing wastewater treatment device according to an embodiment of the invention;

FIG. 2 is a schematic structural view of a first continuous filtration cartridge according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an aeration flocculation tank according to an embodiment of the invention;

FIG. 4 is a schematic view of the structure of an oxidation chamber according to an embodiment of the present invention;

FIG. 5 is a schematic view of the distribution of a first baffle plate according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a filter tray according to an embodiment of the invention;

FIG. 7 is a schematic view of a connection between a curved pipe and a standpipe according to an embodiment of the present invention;

FIG. 8 is a flow chart of a textile printing and dyeing wastewater treatment process according to an embodiment of the invention.

In the figure:

1. a first continuous filtration bin; 101. a filter box body; 102. a filter tray; 103. a material plate; 104. a filter screen; 105. a conveyor; 106. a drive motor; 107. a main shaft; 108. an air compressor; 109. a gas delivery pipe; 110. a pulse valve; 111. an arc tube; 112. blowing head; 113. carrying out top bin; 114. a central disk; 115. a vertical tube; 2. a first delivery pump; 3. an aeration flocculation tank; 301. a treatment box body; 302. a first baffle plate; 303. a diaphragm pump; 304. a medicine extracting pipe; 305. a nozzle; 306. a spray head; 307. a blower; 308. an air inlet pipe; 309. a shunt tube; 4. a second continuous filtration bin; 5. a second delivery pump; 6. an oxidation box; 601. an ozone treatment tank; 602. a second baffle plate; 603. an ozone delivery pipe; 604. an ozone outflow pipe; 7. a first water delivery pipe; 8. a CMF system; 9. a second water delivery pipe; 10. a reverse osmosis system.

Detailed Description

For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.

According to the embodiment of the invention, a textile printing and dyeing wastewater treatment device and a treatment process are provided.

Referring to the drawings and the detailed description, the invention is further explained, as shown in fig. 1-8, a textile printing and dyeing wastewater treatment device according to an embodiment of the invention comprises a first continuous filtering bin 1 and a second continuous filtering bin 4, wherein the first continuous filtering bin 1 and the second continuous filtering bin 4 are in the same structure, an aeration flocculation tank 3 is arranged between the first continuous filtering bin 1 and the second continuous filtering bin 4, the aeration flocculation tank 3 is in a cylindrical structure, a first delivery pump 2 is communicated between the aeration flocculation tank 3 and the first continuous filtering bin 1, the first delivery pump 2 is respectively communicated with the first continuous filtering bin 1 and the aeration flocculation tank 3 through a communication pipeline and is common delivery equipment, an oxidation tank 6 is arranged on the other side of the second continuous filtering bin 4, and a second delivery pump 5 is communicated between the oxidation tank 6 and the second continuous filtering bin 4, the second delivery pump 5 has the same function and connection form as the first delivery pump 2, the other end of the oxidation box 6 is in through connection with the CMF system 8 through a first water delivery pipe 7, the liquid outlet end of the CMF system 8 is in through connection with the liquid inlet end of the reverse osmosis system 10, and the devices are common in the field, wherein the first continuous filtration cabin 1 comprises a filtration box body 101, a filtration disc 102, a material plate 103, a filtration screen 104, a conveyor 105, a driving motor 106, a main shaft 107, an air compressor 108, an air delivery pipe 109, a pulse valve 110, an arc-shaped pipe 111, a blowing head 112, a top cabin 113, a central disc 114 and a vertical pipe 115, the top surface of the filtration box body 101 is fixedly provided with the top cabin 113, the top cabin 113 plays a role in protection and prevents solid impurities from splashing, the filtration box body 101 is connected with the filtration disc 102 through the top surface, the vertical section of the filtration box body 101 is of a fan-shaped structure, so as to ensure that the inner wall can be in sliding contact with the outer wall of the filtration disc 102, the filter disc 102 is prevented from passing through impurities in the rotating process, the rotation of the filter disc 102 is not influenced, a filter screen 104 is fixedly connected to the inner wall of one end of the filter disc 102, a center disc 114 is fixedly connected to the center of the filter screen 104, supporting rods are fixedly connected to one side of the filter screen 104 between the center disc 114 and the inner wall of the filter disc 102, the supporting rods are distributed in a radial shape and play a role of supporting the filter screen 104, the filter disc is not shown in the figure, a driving motor 106 is fixedly connected to one end of a filter box body 101, the output end of the driving motor 106 is connected with a spindle 107, the spindle 107 penetrates through the center disc 114 and is fixedly connected with the center disc 114, the other end of the spindle 107 penetrates through the filter box body 101 and is rotatably connected with the filter box body 101, flitches 103 are fixedly connected to one side of the filter screen 104 at equal angles on the inner wall of the filter disc 102, the flitches 103 are distributed in a radial shape, and a fixing frame which is arranged inside a top bin 113 and is arranged on the top surface of the filter box body 101 is provided with a conveyor 105, the conveyer 105 extends out of the top bin 113 to facilitate conveying of impurities out of the top bin 113, an arc-shaped pipe 111 is arranged on a fixed frame inside the top bin 113, one end of the arc-shaped pipe 111 is vertically connected with a vertical pipe 115 in a through mode, an air compressor 108 is fixedly arranged on the other side, located on the top surface of the filtering box body 101, of the arc-shaped pipe 111, the output end of the air compressor 108 is connected with the other end of the arc-shaped pipe 111 in a through mode through an air pipe 109, a pulse valve 110 is arranged on the surface of the air pipe 109, blowing heads 112 are connected on the surfaces of the arc-shaped pipe 111 and the vertical pipe 115 in a through mode, the air outlet direction of the blowing heads 112 points to the other side of the filtering net 104, the filtering disc 102 is in sliding abutting connection with the inner wall of the filtering box body 101, the first continuous filtering bin 1 and the second continuous filtering bin 4 are in the same structure, when textile printing and dyeing wastewater treatment is started, wastewater firstly passes through the first continuous filtering bin 1 and firstly enters the filtering box body 101, the wastewater filtered by the filter screen 104 is conveyed to the aeration flocculation tank by the first conveying pump 2, the intercepted solid impurities are brought out of the filter box body 101 under the rotation of the material plate 103 and are moved to the top bin 113, the air compressor 108 is started, high-pressure pulse airflow is generated by the pulse valve 110 and blown out along the blowing head 112 by the arc-shaped pipe 111 and the vertical pipe 115, the solid impurities on the surfaces of the filter screen 104 and the material plate 103 are blown off by high-pressure pulse wind power, the solid impurities are blown off into the conveyor 105 by high-pressure blowing and are conveyed out of the top bin 113, the wastewater impurities entering the aeration flocculation tank 3 are filtered by the first continuous filter bin 1, the solid impurities generated in the aeration flocculation process are filtered by the second continuous filter bin 4, the filtering mode is the same, for traditional filtration equipment, filter disc 102 constantly rotates under driving motor 106's drive, change filter screen 104 position, filter screen 104 jam has been avoided, filtration efficiency is improved, simultaneously, also can take out filter box 101 through the pivoted mode with the solid impurity that filters, and clear up solid impurity and blow off the impurity that blocks up filter screen 104 through the mode of pulse blowback, play continuous filtration, prevent stifled effect of excluding impurity, it improves filtration efficiency to show, and because filter screen 104 clears up through high-pressure pulse blowback, the clearance is effectual, do not produce advantages such as wearing and tearing, filter screen 104 aperture can show and reduce, improve filterable level of refining, continuous filtration's efficiency has further been improved, waste water treatment efficiency is improved.

In one embodiment, the aeration flocculation tank 3 comprises a treatment tank body 301, a first baffle plate 302, a diaphragm pump 303, a medicine pumping pipe 304, a spray pipe 305, a spray head 306, a blower 307, an air inlet pipe 308 and a shunt pipe 309, wherein the top surface of one end of the treatment tank body 301 is fixedly provided with the diaphragm pump 303, the liquid inlet end of the diaphragm pump 303 is connected with the medicine pumping pipe 304 in a penetrating way, the medicine pumping pipe 304 is communicated with a liquid flocculant medicine box which is common medicine, the liquid outlet end of the diaphragm pump 303 is connected with the spray pipe 305 in a penetrating way, the bottom surface of the spray pipe 305 penetrates through the treatment tank body 301 and is connected with the spray head 306 in a penetrating way, the first baffle plate 302 is fixedly arranged inside the treatment tank body 301, the first baffle plates 302 are arranged in a staggered way, the top surface of the treatment tank body 301 is connected with the shunt pipe 309 in a penetrating way, the bottom surface of the shunt pipe 309 extends to the first baffle plate 302, the top surface of the shunt pipe 309 is connected with the air inlet pipe 308 in a penetrating way, and the other end of the air inlet pipe 308 is connected with the blower 307 in a penetrating way, after the wastewater is filtered by the first continuous filtering bin 1, the wastewater enters the aeration flocculation tank 3 after being accelerated and conveyed by the first conveying pump 2, firstly, the wastewater passes below the spray nozzle 306, the diaphragm pump 303 pumps a liquid flocculant to be sprayed in the wastewater through the spray nozzle 306, the dynamic dosing process is completed, the dosing uniformity is improved, meanwhile, the wastewater continuously advances along the first baffle plate 302 in an S shape when passing through the aeration flocculation tank 3 and continuously collides with the first baffle plate 302 to generate wastewater sloshing, the mixing with the liquid flocculant is accelerated to complete flocculation, the trouble of accelerated mixing required by the traditional equipment for stirring is eliminated, the flocculation process is completed in the moving process, meanwhile, in the moving process of the wastewater, the air is injected into the wastewater by the air blower 307 to form aeration, the flocculation process is accelerated, and no precipitation is needed after the flocculation is completed, directly filter through second continuous filtration storehouse 4 to save sediment latency, showing and improving waste water treatment efficiency, shortened waste water treatment time, and, synchronous discharge flocculation sludge when second continuous filtration storehouse 4 filters, saved the trouble that traditional sedimentation tank need clear up alone and deposit mud, further improved waste water treatment's convenience and efficiency.

In one embodiment, the oxidation box 6 comprises an ozone treatment box 601, a second baffle plate 602, an ozone delivery pipe 603 and an ozone outlet pipe 604, wherein the second baffle plate 602 is fixedly installed inside the ozone treatment box 601, the second baffle plate 602 is arranged in a staggered manner, the ozone outlet pipe 604 is connected to the top surface of the ozone treatment box 601 through the ozone treatment box 301, the ozone outlet pipe 604 extends to the position between the second baffle plates 602, and the ozone delivery pipe 603 is connected to the top surface of the ozone outlet pipe 604 through the ozone delivery pipe 603, wherein the ozone delivery pipe 603 connects to the output end of the ozone generator, which is a common device and is not shown in the figure.

In an embodiment, one end of the processing box 301 is connected to the liquid outlet pipe of the first delivery pump 2 in a penetrating manner, the other end of the processing box 301 is connected to one end of the filtering box 101 of the second continuous filtering bin 4 in a penetrating manner, and the liquid inlet end of the first delivery pump 2 is connected to the filtering box 101 of the first continuous filtering bin 1 in a penetrating manner.

In an embodiment, a liquid inlet end of the second delivery pump 5 is connected to the other end of the second continuous filtering bin 4, a liquid outlet end of the second delivery pump 5 is connected to one end of the ozone treatment tank 601, and the other end of the ozone treatment tank 601 is connected to the first water pipe 7.

In one embodiment, the surface blowing head 112 of the arced tube 111 is aligned with the inner wall of the filter disc 102, and the surface blowing head 112 of the standpipe 115 is aligned with the vertical center line of the filter screen 104, so that the accuracy and efficiency of blowback are improved.

A textile printing and dyeing wastewater treatment process comprises a textile printing and dyeing wastewater treatment device, and the specific process flow is as follows:

the first process is as follows: in the front filtering stage, the textile printing and dyeing wastewater enters a filtering box body 101 of a first continuous filtering bin 1 under the conveying of a water pump, a driving motor 106 is started to drive a filtering disc 102 to rotate and further drive a filtering net 104 to rotate, the textile printing and dyeing wastewater passes through the filtering net 104, impurities are rotated out by a material plate 103, back-blowing is carried out through high-pressure blowing to clean the impurities and dredge the filtering net 104, and the textile printing and dyeing wastewater enters a treatment box body 301 through the pumping of a first conveying pump 2;

and a second process: in the aeration flocculation stage, the textile printing and dyeing wastewater entering the treatment tank body 301 passes through the lower part of the spray nozzle 306, the diaphragm pump 303 is started to extract a liquid flocculant and spray the liquid flocculant into the textile printing and dyeing wastewater through the spray nozzle 306, the dosing is completed, then the textile printing and dyeing wastewater continuously flows and passes through the first baffle plates 302 which are arranged in a staggered manner to move in a continuous S shape, the wastewater collides with the first baffle plates 302 during moving to generate a sloshing effect for flocculation, meanwhile, the air blower 307 is started to inject outside air into the air conveying pipe 109 and flows out through the flow dividing pipe 309 to form aeration, the textile printing and dyeing wastewater flows out of the treatment tank body 301 to complete the aeration flocculation, and then enters the filter tank of the second continuous filter bin 4;

and a third process: in the middle filtering stage, the driving motor 106 of the second continuous filtering bin 4 is started to drive the filtering disc 102 to rotate, so as to drive the filtering net 104 to rotate, the textile printing and dyeing wastewater passes through the filtering net 104, the flocculated impurities are rotated out by the material plate 103, and the textile printing and dyeing wastewater enters the ozone treatment tank 601 through the pumping of the second conveying pump 5;

and (4) a fourth process: in the oxidation stage, the textile printing and dyeing wastewater entering the ozone treatment tank 601 continuously advances along the second baffle plate 602 in an S shape, the second baffle plate 602 and the first baffle plate 302 are arranged in the same manner, in the moving process, the ozone conveying pipe 603 conveys ozone into the ozone outflow pipe 604, the ozone oxidizes the textile printing and dyeing wastewater to complete the oxidation process, and then the textile printing and dyeing wastewater flows into the CMF system 8 through the first water conveying pipe 7;

and a fifth process: in the continuous ultrafiltration stage, the textile printing and dyeing wastewater enters a reverse osmosis system 10 through a second water delivery pipe 9 after being subjected to continuous ultrafiltration by a CMF system 8;

and a sixth process: and in the reverse osmosis filtration stage, the textile printing and dyeing wastewater entering the reverse osmosis filtration system is subjected to reverse osmosis treatment and then flows back to the textile printing and dyeing process.

The working principle is as follows:

the textile printing and dyeing wastewater enters a filtering box body 101 of a first continuous filtering bin 1 under the conveying of a water pump, a driving motor 106 is started to drive a filtering disc 102 to rotate so as to drive a filtering screen 104 to rotate, the textile printing and dyeing wastewater passes through the filtering screen 104, impurities are turned out by a material plate 103, the textile printing and dyeing wastewater enters a treatment box body 301 through the extraction of a first conveying pump 2, the textile printing and dyeing wastewater entering the treatment box body 301 passes below a spray head 306, a diaphragm pump 303 is started to extract a liquid flocculating agent, the liquid flocculating agent is sprayed into the textile printing and dyeing wastewater through the spray head 306 to complete the chemical dosing, then the textile printing and dyeing wastewater continuously flows to pass through a first baffle plate 302 which is arranged in a staggered mode to move continuously in an S mode for flocculation, meanwhile, an air blower 307 is started to inject outside air into a gas conveying pipe 109 and flow out through a flow dividing pipe 309 to form aeration, and the aeration and flocculation are completed after the textile printing and dyeing wastewater flows out of the treatment box body 301, then the textile printing and dyeing wastewater enters a filter box of a second continuous filter bin 4, a driving motor 106 of the second continuous filter bin 4 is started to drive a filter disc 102 to rotate so as to drive a filter screen 104 to rotate, the textile printing and dyeing wastewater passes through the filter screen 104, flocculation impurities are turned out by a material plate 103, the textile printing and dyeing wastewater enters an ozone treatment box 601 through the suction of a second conveying pump 5, the textile printing and dyeing wastewater entering the ozone treatment box 601 advances in a continuous S shape along a second baffle plate 602, in the moving process, an ozone conveying pipe 603 conveys ozone to an ozone outflow pipe 604, the ozone oxidizes the textile printing and dyeing wastewater to complete an oxidation process, then the textile printing and dyeing wastewater flows into a CMF system 8 through a first water pipe 7, the textile printing and dyeing wastewater enters a reverse osmosis system 10 through a second water pipe 9 after being subjected to continuous ultramicro filtration by the CMF system 8, and the textile printing and dyeing wastewater entering the reverse osmosis filter system flows back to the textile printing and dyeing wastewater after being subjected to reverse osmosis treatment In the working procedure.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. The textile printing and dyeing wastewater treatment device is characterized by comprising a first continuous filtering bin (1) and a second continuous filtering bin (4), wherein the first continuous filtering bin (1) and the second continuous filtering bin (4) are of the same structure, an aeration flocculation tank (3) is arranged between the first continuous filtering bin (1) and the second continuous filtering bin (4), a first conveying pump (2) is communicated between the aeration flocculation tank (3) and the first continuous filtering bin (1), an oxidation tank (6) is arranged on the other side of the second continuous filtering bin (4), a second conveying pump (5) is communicated between the oxidation tank (6) and the second continuous filtering bin (4), the other end of the oxidation tank (6) is communicated with a CMF system (8) through a first water conveying pipe (7), and the liquid inlet end of the CMF system (8) is communicated with the liquid outlet end of a reverse osmosis system (10).

2. The textile printing and dyeing wastewater treatment device according to claim 1, characterized in that the first continuous filter bin (1) comprises a filter box body (101), a filter disc (102), a material plate (103), a filter screen (104), a conveyor (105), a driving motor (106), a main shaft (107), an air compressor (108), an air pipe (109), a pulse valve (110), an arc pipe (111), a blowing head (112), a top bin (113), a center disc (114) and a vertical pipe (115), wherein the top surface of the filter box body (101) is fixedly provided with the top bin (113), the top surface of the filter box body (101) is connected with the filter disc (102) in a penetrating way, the inner wall of one end of the filter disc (102) is fixedly connected with the filter screen (104), the center disc (114) is fixedly connected with the center of the filter screen (104), one end of the filter box body (101) is fixedly connected with the driving motor (106), the output end of the driving motor (106) is connected with the main shaft (107), the main shaft (107) penetrates through the center disc (114) and is fixedly connected with the center disc (114), the other end of the filter screen (107) penetrates through the filter box body (101) and is connected with the filter screen (103) in a rotating way, and the filter screen (103) is positioned on one side of the filter box body (102), and flitch (103) one side is located top storehouse (113) and inside is located filter box (101) top surface mount and is equipped with conveyer (105), the inside mount in top storehouse (113) is equipped with arc pipe (111), and the vertical through connection of arc pipe (111) one end has standpipe (115) to arc pipe (111) opposite side is located filter box (101) top surface fixed mounting has air compressor machine (108), air compressor machine (108) output passes through air pipe (109) and arc pipe (111) other end through connection, and air pipe (109) surface mounting has pulse valve (110), arc pipe (111) and standpipe (115) surface all through connection have blowing head (112), and blowing head (112) air-out direction filter screen directional (104) opposite side, filter disc (102) and filter box (101) inner wall slip butt.

3. The textile printing and dyeing wastewater treatment device according to claim 1, characterized in that the aeration flocculation tank (3) comprises a treatment tank body (301), a first baffle plate (302), a diaphragm pump (303), a medicine suction pipe (304), a spray pipe (305), a spray head (306), an air blower (307), an air inlet pipe (308) and a shunt pipe (309), the diaphragm pump (303) is fixedly mounted on the top surface of one end of the treatment tank body (301), the medicine suction pipe (304) is connected to the liquid inlet end of the diaphragm pump (303), the spray pipe (305) is connected to the liquid outlet end of the diaphragm pump (303) in a penetrating manner, the spray pipe (305) is connected to the bottom surface of the spray pipe (305) in a penetrating manner through the treatment tank body (301) and is connected to the spray head (306), the first baffle plate (302) is fixedly mounted inside the treatment tank body (301), the first baffle plates (302) are arranged in a staggered manner, the top surface of the treatment tank body (301) is connected to the shunt pipe (309) in a penetrating manner, the bottom surface of the shunt pipe (309) extends to the first baffle plate (302), the air inlet pipe (308) is connected to the top surface of the shunt pipe (309) in a penetrating manner, and the air inlet pipe (308) is connected to the other end of the air inlet pipe (308).

4. The textile printing and dyeing wastewater treatment device according to claim 1, characterized in that the oxidation tank (6) comprises an ozone treatment tank (601), a second baffle plate (602), an ozone delivery pipe (603) and an ozone outlet pipe (604), the second baffle plate (602) is fixedly installed inside the ozone treatment tank (601) body (301), the second baffle plate (602) is arranged in a staggered manner, the ozone outlet pipe (604) is connected to the top surface of the ozone treatment tank (601) body (301) in a penetrating manner, the ozone outlet pipe (604) extends to the position between the second baffle plates (602), and the ozone outlet pipe (604) is connected to the top surface of the ozone delivery pipe (603) in a penetrating manner.

5. The textile printing and dyeing wastewater treatment device according to claim 3, characterized in that one end of the treatment box body (301) is communicated with a liquid outlet pipe of the first delivery pump (2), the other end of the treatment box body (301) is communicated with one end of the filtering box body (101) of the second continuous filtering bin (4), and the liquid inlet end of the first delivery pump (2) is communicated with the filtering box body (101) of the first continuous filtering bin (1).

6. The textile printing and dyeing wastewater treatment device according to claim 4, characterized in that the liquid inlet end of the second delivery pump (5) is connected with the other end of the second continuous filtration bin (4) in a penetrating manner, the liquid outlet end of the second delivery pump (5) is connected with one end of the ozone treatment tank (601) in a penetrating manner, and the other end of the ozone treatment tank (601) is connected with the first water delivery pipe (7) in a penetrating manner.

7. The textile printing and dyeing wastewater treatment device according to claim 2, characterized in that the surface blowing head (112) of the arc pipe (111) is aligned with the inner wall of the filter disc (102), and the surface blowing head (112) of the standpipe (115) is aligned with the vertical center line of the filter screen (104).

8. The textile printing and dyeing wastewater treatment device according to claim 3, characterized in that the drug pumping pipe (304) is communicated with a liquid flocculant drug box.

9. The textile printing and dyeing wastewater treatment device according to claim 4, characterized in that the ozone delivery pipe (603) is connected with the output end of an ozone generator.

10. A textile printing and dyeing wastewater treatment process is characterized by comprising the textile printing and dyeing wastewater treatment device of claims 1-9, and the specific process flow is as follows:

the first process is as follows: in the front filtering stage, the textile printing and dyeing wastewater enters a filtering box body (101) of a first continuous filtering bin (1) under the conveying of a water pump, a driving motor (106) is started to drive a filtering disc (102) to rotate so as to drive a filtering screen (104) to rotate, the textile printing and dyeing wastewater passes through the filtering screen (104), impurities are turned out by a material plate (103), and the textile printing and dyeing wastewater enters a treatment box body (301) through the pumping of a first conveying pump (2);

and a second process: in the aeration flocculation stage, the textile printing and dyeing wastewater entering the treatment box body (301) passes through the lower part of the spray head (306), the diaphragm pump (303) is started to extract a liquid flocculant and sprays the liquid flocculant into the textile printing and dyeing wastewater through the spray head (306) to finish dosing, then the textile printing and dyeing wastewater continuously flows, passes through the first baffle plates (302) which are arranged in a staggered mode and moves in a continuous S shape to flocculate, meanwhile, the air blower (307) is started to inject outside air into the air delivery pipe (109) and flows out through the flow dividing pipe (309) to form aeration, the textile printing and dyeing wastewater finishes aeration flocculation after flowing out of the treatment box body (301), and then enters the filter box of the second continuous filter bin (4);

and a third process: in the middle filtering stage, a driving motor (106) of the second continuous filtering bin (4) is started to drive a filtering disc (102) to rotate so as to drive a filtering screen (104) to rotate, textile printing and dyeing wastewater passes through the filtering screen (104), flocculated impurities are turned out by a material plate (103), and the textile printing and dyeing wastewater is pumped into an ozone treatment tank (601) by a second conveying pump (5);

and (4) a fourth process: in the oxidation stage, the textile printing and dyeing wastewater entering the ozone treatment box (601) continuously advances along a second baffle plate (602) in an S shape, in the moving process, an ozone conveying pipe (603) conveys ozone into an ozone outflow pipe (604), the ozone oxidizes the textile printing and dyeing wastewater to complete the oxidation process, and then the textile printing and dyeing wastewater flows into a CMF system (8) through a first water conveying pipe (7);

and a fifth process: in the continuous ultrafiltration stage, the textile printing and dyeing wastewater enters a reverse osmosis system (10) through a second water delivery pipe (9) after being subjected to continuous ultrafiltration by a CMF system (8);

and a sixth process: and in the reverse osmosis filtration stage, the textile printing and dyeing wastewater entering the reverse osmosis filtration system is subjected to reverse osmosis treatment and then flows back to the textile printing and dyeing process.

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