Advanced treatment device for printing and dyeing wastewater

Abstract

The utility model discloses an advanced treatment device for printing and dyeing wastewater, which comprises a coagulation treater, a sediment filter tank is arranged at the output end of the coagulation treater, a centrifugal separator is connected to the tail end of the sediment filter tank, an activated carbon filter tank is arranged at the tail end of the centrifugal separator, and a water outlet is formed in the tail end of the activated carbon filter tank. The tail end of the activated carbon filter box is connected with an ultrafiltration membrane filter, and the tail end of the ultrafiltration membrane filter is connected with a reverse osmosis membrane filter; according to the utility model, the procedures of coagulating sedimentation, precipitate separation, centrifugal separation of suspended particles, activated carbon filtration of fine substances, ultrafiltration membrane filtration and reverse osmosis filtration during sewage treatment can be realized in sequence, and the treatment effect on printing and dyeing sewage is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of printing and dyeing sewage, more specifically, it relates to a printing and dyeing sewage advanced treatment device. BACKGROUND

[0002] Printing and dyeing sewage refers to the wastewater generated in the process of textile printing and dyeing, usually containing a large amount of dyes, auxiliaries, chemicals and other pollutants. If this kind of wastewater is directly discharged without treatment, it will cause serious pollution to the environment.

[0003] In the prior art, the impurities in the wastewater are separated by natural sedimentation in the sedimentation tank, and then corresponding filtering operation is carried out. The natural sedimentation takes a long time, and the separation effect of the impurities in the wastewater is poor.

[0004] And in the prior art, the printing and dyeing sewage is mainly treated by the filter plate. The direct filtration of the filter plate for filtering the wastewater has poor treatment precision, and the commonly used filter plate is activated carbon aluminum plate. Direct filtration through the filter plate will increase the pressure of the filter plate and affect the treatment effect of the wastewater. UTILITY MODEL CONTENT

[0005] In view of the problems existing in the prior art, the utility model provides a printing and dyeing sewage advanced treatment device to solve the technical problems of poor treatment and low efficiency of the printing and dyeing sewage advanced treatment device in the background art.

[0006] TECHNICAL SCHEME

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] A printing and dyeing sewage advanced treatment device, comprising a coagulation processor, a sediment filter box is arranged at the output end of the coagulation processor, a centrifugal separator is connected at the tail end of the sediment filter box, an activated carbon filter box is arranged at the tail end of the centrifugal separator, an ultrafiltration membrane filter is connected at the tail end of the activated carbon filter box, and a reverse osmosis membrane filter is connected at the tail end of the ultrafiltration membrane filter.

[0009] The utility model is further provided with a coagulation box, a water inlet pipe is arranged at the top end of the coagulation box, a liquid inlet pipe is arranged on the side wall of the coagulation box, the liquid inlet pipe extends into the coagulation box and is connected with a ring pipe, a plurality of spray heads are uniformly arranged on the ring pipe, the liquid inlet pipe is used for the entry of the wastewater, the coagulant is conveyed to the ring pipe through the liquid inlet pipe and sprayed out through the spray heads on the ring pipe, so that the contact between the coagulant and the wastewater can be better realized, and the contact completeness between the wastewater and the coagulant can be improved.

[0010] The utility model further sets up, the coagulation box is provided with the stirring shaft through bearing in, and cooperation stirring shaft is provided with stirring motor, be provided with spiral stirring vane on the stirring shaft, start stirring motor, can control spiral stirring vane rotation through stirring motor, thereby can mix between the sewage and coagulant of entering coagulation box, thereby make the mixture between sewage and coagulant more fully, improve the treatment effect of sewage.

[0011] The utility model further sets up, the sediment filter box includes the box body, the arc filter screen is provided with in the box body inside and inclines upwards, the output of coagulation box is connected with the input of box body, cooperation arc filter screen is provided with first deslagging pipe on the box body, the setting of arc filter screen can make the flocculation that produces in the sewage after coagulation treatment separates in the sediment filter box, and the setting of inclining upwards can make the better separation between sewage and flocculation, and first deslagging pipe is used for the discharge of the impurity of interception.

[0012] The utility model further sets up, the box body inside and located arc filter screen top is provided with the conveying shaft, cooperation conveying shaft is provided with conveying motor on the box body, cooperation arc filter screen is provided with spiral conveying vane on the conveying shaft, start conveying motor, can control spiral conveying vane rotation through conveying motor, can be conveyed in first deslagging pipe direction through spiral conveying vane the impurity that intercepts on arc filter screen, thereby facilitate the impurity that intercepts on arc filter screen and exports.

[0013] The utility model further sets up, the outer end of spiral stirring vane and spiral conveying vane all is provided with scraper, the scraper is respectively with corresponding the inner wall of coagulation box and the upper end of arc filter screen between the adhesion, through the setting of scraper can in the process of spiral stirring vane and spiral conveying vane rotation, respectively on the inner wall of coagulation box and the upper end of arc filter screen scrape, thereby avoid the flocculation that produces or the impurity in sewage adheres to the situation on the inner wall of coagulation box, can also avoid the impurity and block on arc filter screen, influence the situation of filtration.

[0014] The utility model further sets up, the bottom of centrifugal separator is provided with second deslagging pipe, valve door is all provided on first deslagging pipe and second deslagging pipe, can export the impurity that centrifugal separator separates out through second deslagging pipe, realize the discharge treatment of impurity, and valve door is used for controlling the opening and closure of second deslagging pipe and second deslagging pipe.

[0015] The utility model further sets up, be provided with drainage pipe on centrifugal separator, and the input of active carbon filter box is connected through pipeline structure between drainage pipe, and the liquid that centrifugal separates out is discharged through drainage pipe and is sent to active carbon filter box. Beneficial effects

[0016] Compared with the prior art, the printing and dyeing wastewater advanced treatment device has the following beneficial effects:

[0017] 1、The coagulation processor is arranged, coagulants (such as basic aluminum chloride, ferrous sulfate, etc.) can be added to the coagulation processor, so that colloidal particles in the printing and dyeing wastewater are combined into large particles to form flocculation, and dispersed dyes and colloidal substances are removed conveniently, the output end of the coagulation processor is sequentially provided with the sediment filter box, the flocculation generated in the coagulation processor due to chemical reaction is intercepted and separated, so that the large particle flocculation is removed, and the printing and dyeing wastewater is preliminarily purified.

[0018] 2、The tail end of the sediment filter box is connected with the centrifugal separator, so that small particle suspensions in the printing and dyeing wastewater after preliminary purification are separated from liquid, the separated wastewater is discharged from the liquid discharge pipe and conveyed to the activated carbon filter box in the next process, and the separated impurities are discharged outward through the second discharge pipe, so that the printing and dyeing wastewater and the internal impurities are further purified and separated.

[0019] 3、The tail end of the centrifugal separator is sequentially provided with the activated carbon filter box, the ultrafiltration membrane filter and the reverse osmosis membrane filter, fine substances in the remaining wastewater are adsorbed through the activated carbon filter box, so that the printing and dyeing wastewater is further purified, macromolecular substances in the wastewater are intercepted through the ultrafiltration membrane filter, and small molecular pollutants in the wastewater are intercepted through the reverse osmosis membrane filter, so that the printing and dyeing wastewater is deeply treated. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the whole structure schematic of the printing and dyeing wastewater advanced treatment device in the utility model Figure 1 ;

[0021] Figure 2 It is the whole structure schematic of the printing and dyeing wastewater advanced treatment device in the utility model Figure 2 ;

[0022] Figure 3 It is the internal structure cross-sectional view of the coagulation box in the utility model

[0023] Figure 4 It is the internal structure cross-sectional view of the sediment filter box in the utility model Figure 1 ;

[0024] Figure 5 It is the internal structure cross-sectional view of the sediment filter box in the utility model Figure 2 .

[0025] In the figure: 1, coagulation processor; 2, sediment filter box; 3, centrifugal separator; 4, activated carbon filter box; 5, ultrafiltration membrane filter; 6, reverse osmosis membrane filter; 7, coagulation tank; 8, water inlet pipe; 9, liquid inlet pipe; 10, annular pipe; 11, spray head; 12, stirring shaft; 13, stirring motor; 14, spiral stirring blade; 15, box; 16, arc filter screen; 17, first slag discharge pipe; 18, conveying shaft; 19, conveying motor; 20, spiral conveying blade; 21, scraper; 22, second slag discharge pipe; 23, valve; 24, liquid discharge pipe. DETAILED DESCRIPTION

[0026] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0028] In the present application, unless otherwise stated, the orientation such as "up, down" is generally with respect to the direction shown in the drawings, or with respect to the vertical, perpendicular or gravitational direction; similarly, for the convenience of understanding and description, "left, right" is generally with respect to the left and right shown in the drawings; "inner, outer" refers to the inner and outer of the contour of each component itself, but the above orientation words are not used to limit the present application.

[0029] Please refer to Figures 1-5 A kind of printing and dyeing wastewater advanced treatment device, including coagulation processor 1, coagulation processor 1 is used to add coagulant (such as basic aluminum chloride, ferrous sulfate) to make colloidal particles in printing and dyeing wastewater combine into large particles and form flocculation, facilitate to remove dispersed dye and colloidal substance;

[0030] The utility model discloses a sediment filter box 2 is provided at the output end of coagulation processor 1, and the flocculation produced in coagulation processor 1 due to chemical reverse is intercepted and separated in sediment filter box 2, so that the removal of large particle flocculation is realized, and the preliminary purification of printing and dyeing wastewater is realized;

[0031] The utility model discloses a centrifugal separator 3 is connected to the tail end of sediment filter box 2, and through centrifugal separator 3, small particle suspended matter in printing and dyeing wastewater after preliminary purification can be separated from liquid, so that further purification and separation between printing and dyeing wastewater and internal impurities are realized;

[0032] The utility model discloses a centrifugal separator 3's tail end is provided with activated carbon filter box 4, can through activated carbon filter box 4 and carry out adsorption to the fine material in the remaining sewage, to realize printing and dyeing sewage further purification again;

[0033] The utility model discloses a centrifugal separator 3's tail end is provided with activated carbon filter box 4, can through activated carbon filter box 4 and carry out adsorption to the fine material in the remaining sewage, to realize printing and dyeing sewage further purification again;

[0034] The utility model discloses a centrifugal separator 3's tail end is provided with activated carbon filter box 4, can through activated carbon filter box 4 and carry out adsorption to the fine material in the remaining sewage, to realize printing and dyeing sewage further purification again;

[0035] Please refer to Figures 1-5 As an embodiment of the coagulation processor 1: the coagulation processor 1 includes coagulation box 7, the top of coagulation box 7 is provided with water inlet pipe 8, and the side wall of coagulation box 7 is provided with liquid inlet pipe 9, liquid inlet pipe 9 extends inside coagulation box 7, and annular pipe 10 is connected, a plurality of spray heads 11 are uniformly arranged on annular pipe 10, liquid inlet pipe 9 is used for the entry of sewage, at the same time, coagulant is transported to annular pipe 10 through liquid inlet pipe 9, and is sprayed out through spray head 11 on annular pipe 10, so that the contact between coagulant and sewage can be better realized, and the contact completeness between sewage and coagulant is improved.

[0036] Please refer to Figures 1-5 As an embodiment of the coagulation box 7: a stirring shaft 12 is arranged in coagulation box 7 through a bearing, and a stirring motor 13 is arranged in cooperation with the stirring shaft 12, a spiral stirring blade 14 is arranged on the stirring shaft 12, the stirring motor 13 is started, the stirring shaft 12 can be controlled to drive the spiral stirring blade 14 to rotate through the stirring motor 13, so that the mixture between the sewage and the coagulant entering the coagulation box 7 can be mixed, so that the mixture between the sewage and the coagulant is more sufficient, and the treatment effect of the sewage is improved.

[0037] Please refer to Figures 1-5 As an embodiment of the sediment filter box 2: the sediment filter box 2 includes a box body 15, an arc-shaped filter screen 16 is arranged inside the box body 15 and inclined upward, the output end of the coagulation box 7 is connected with the input end of the box body 15, a first deslagging pipe 17 is arranged on the box body 15 in cooperation with the arc-shaped filter screen 16, the arrangement of the arc-shaped filter screen 16 can make the flocculation produced in the sewage after coagulation be intercepted and separated in the sediment filter box 2, the inclined upward arrangement can make the sewage and the flocculation be better separated, and the first deslagging pipe 17 is used for discharging the intercepted impurities.

[0038] Please refer to Figures 1-5As an embodiment of the box 15: the inside of the box 15 and above the arc-shaped filter screen 16 is provided with a conveying shaft 18, the box 15 is provided with a conveying motor 19 matched with the conveying shaft 18, the conveying shaft 18 is provided with a spiral conveying blade 20 matched with the arc-shaped filter screen 16, the conveying motor 19 is started, the spiral conveying blade 20 can be driven to rotate by the conveying motor 19, and the impurities intercepted on the arc-shaped filter screen 16 can be conveyed to the first slag discharge pipe 17, so that the impurities intercepted on the arc-shaped filter screen 16 can be conveniently discharged outward.

[0039] Please refer to Figures 1-5 As an embodiment of the spiral stirring blade 14: the outer end of the spiral stirring blade 14 and the outer end of the spiral conveying blade 20 are provided with scrapers 21, the scrapers 21 are respectively attached to the inner wall of the coagulation tank 7 and the upper end of the arc-shaped filter screen 16, the coagulation tank 7 and the upper end of the arc-shaped filter screen 16 can be scraped respectively during the rotation of the spiral stirring blade 14 and the spiral conveying blade 20, so that the flocculation or impurities in the sewage can be prevented from adhering to the inner wall of the coagulation tank 7, and the impurities can be prevented from blocking the arc-shaped filter screen 16 to affect the filtration.

[0040] Please refer to Figures 1-5 As an embodiment of the centrifugal separator 3: the bottom of the centrifugal separator 3 is provided with a second slag discharge pipe 22, the first slag discharge pipe 17 and the second slag discharge pipe 22 are provided with valves 23, the impurities separated by the centrifugal separator 3 can be discharged outward through the second slag discharge pipe 22 to realize the discharge treatment of the impurities, and the valves 23 are used for controlling the opening and closing of the first slag discharge pipe 17 and the second slag discharge pipe 22.

[0041] Please refer to Figures 1-5 As an embodiment of the centrifugal separator 3: the centrifugal separator 3 is provided with a liquid discharge pipe 24, the liquid discharge pipe 24 and the input end of the activated carbon filter tank 4 are connected through a pipeline structure, the liquid separated by the centrifugal separator 3 is discharged through the liquid discharge pipe 24 and conveyed into the activated carbon filter tank.

[0042] In summary:

[0043] The coagulation processor 1 is arranged, the coagulant (such as basic aluminum chloride, ferrous sulfate, etc.) is added into the coagulation processor 1, the colloidal particles in the printing and dyeing wastewater are combined into large particles to form flocculation, and the dispersed dyes and colloidal substances are removed;

[0044] In use, sewage is delivered into the coagulation tank 7 through the water inlet pipe 8, and coagulant is delivered into the annular pipe 10 through the liquid inlet pipe 9 and sprayed out through the spray heads 11 on the annular pipe 10, so that the contact between the coagulant and the sewage can be better realized, and the contact completeness between the sewage and the coagulant can be improved;

[0045] Meanwhile, the stirring motor 13 is started, the stirring shaft 12 can be controlled to rotate by the stirring motor 13, the spiral stirring blade 14 is driven to rotate, the sewage and the coagulant entering the coagulation tank 7 are mixed, the contact between the sewage and the coagulant is more sufficient, and the coagulation effect of the sewage is improved;

[0046] The utility model discloses a sediment filter tank 2 is provided at the output end of coagulation processor 1 in succession, and the flocculation produced in coagulation processor 1 due to chemical reverse is intercepted and separated, so that the removal of large particle flocculation is realized, and the preliminary purification of printing and dyeing sewage is realized.

[0047] In this process, the sewage discharged from the coagulation processor 1 enters the sediment filter tank 2, the arc filter screen 16 can make the flocculation produced after coagulation in the sewage be intercepted and separated in the sediment filter tank 2, and the inclined upward setting can make the sewage and the flocculation better separated.

[0048] In this process, the conveying motor 19 is started, the conveying shaft 18 can be controlled to rotate by the conveying motor 19, the spiral conveying blade 20 and the corresponding scraper 21 are driven to rotate, the impurities intercepted on the arc filter screen 16 can be conveyed to the first discharge pipe 17 direction by the spiral conveying blade 20, so that the impurities intercepted on the arc filter screen 16 can be conveniently discharged outward, the inclined setting can realize the better separation between the intercepted impurities and the sewage, and the scraper 21 can scrape and clean the upper end surface of the arc filter screen 16, so as to guarantee the filtering effect of the arc filter screen 16.

[0049] The utility model discloses a centrifugal separator 3 is connected at the tail end of sediment filter tank 2, can make the small particle suspended matter in the printing and dyeing sewage after preliminary purification and liquid realize separation, make the sewage after separation from the liquid pipe 24 discharge, and convey to the activated carbon filter tank 4 in the next process, and the impurities separated out are discharged outward through the second discharge pipe, so as to realize the further purification and separation between the printing and dyeing sewage and the internal impurities.

[0050] The utility model discloses activated carbon filter tank 4, ultrafiltration membrane filter 5 and reverse osmosis membrane filter 6 are sequentially provided at the tail end of centrifugal separator 3, can absorb the microfine substance in the remaining sewage through activated carbon filter tank 4, so as to realize the further purification of printing and dyeing sewage, ultrafiltration membrane filter 5 can intercept the macromolecular substance in waste water, and reverse osmosis membrane filter 6 is used for intercepting small molecule pollutants in waste water, so as to realize the depth treatment of printing and dyeing sewage.

[0051] In all the above-mentioned solutions, the connection between two components can be selected according to actual conditions, such as welding, bolt and nut fitting connection, bolt or screw connection, or other known connection modes, which will not be described here. In the above, when referring to fixed connection, welding is preferred, although the embodiments of the utility model have been shown and described. For those skilled in the art, it can be understood that various changes, modifications, replacements and deformations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

[0052] In all the above-mentioned solutions, when referring to the operation of electrical elements, if not specifically described, it is controlled by the controller. Since the controller matches the commonly used equipment, its control principle and circuit connection belong to the existing known and mature technology, and the specific circuit structure will not be described here.

[0053] In all the above-mentioned solutions, when referring to the motor, if actually needed, it can be matched with a speed reducer. The connection structure and working principle between the motor and the speed reducer are the existing known technology, and the utility model will not be described here.

[0054] In all the above-mentioned solutions, when referring to the connection between the solar panel and the battery, the necessary accessories such as the inverter, the battery charging controller, the cable, the fuse and the bracket can be matched. Its control principle and circuit connection belong to the existing known and mature technology, and the specific circuit structure will not be described here.

Claims

1. A kind of printing and dyeing wastewater advanced treatment device, including coagulation processor (1), it is characterized by: The output end of the coagulation processor (1) is provided with a sediment filter box (2), the tail end of the sediment filter box (2) is connected with a centrifugal separator (3), the tail end of the centrifugal separator (3) is provided with an activated carbon filter box (4), the tail end of the activated carbon filter box (4) is connected with an ultrafiltration membrane filter (5), and the tail end of the ultrafiltration membrane filter (5) is connected with a reverse osmosis membrane filter (6).

2. The device for advanced treatment of printing and dyeing wastewater according to claim 1, characterized in that: The coagulation processor (1) comprises a coagulation box (7), the top end of the coagulation box (7) is provided with a water inlet pipe (8), a liquid inlet pipe (9) is arranged on the side wall of the coagulation box (7), the liquid inlet pipe (9) extends into the coagulation box (7), and the liquid inlet pipe (9) is connected with an annular pipe (10), and a plurality of nozzles (11) are uniformly arranged on the annular pipe (10).

3. The device for advanced treatment of printing and dyeing wastewater according to claim 2, characterized in that: The coagulation box (7) is provided with a stirring shaft (12) through a bearing, and a stirring motor (13) is arranged in cooperation with the stirring shaft (12), and the stirring shaft (12) is provided with a spiral stirring blade (14).

4. The device for advanced treatment of printing and dyeing wastewater according to claim 3, characterized in that: The sediment filter box (2) comprises a box body (15), an arc-shaped filter screen (16) is arranged inside the box body (15) and inclined upward, the output end of the coagulation box (7) is connected with the input end of the box body (15), and a first deslagging pipe (17) is arranged on the box body (15) in cooperation with the arc-shaped filter screen (16).

5. The device for advanced treatment of printing and dyeing wastewater according to claim 4, characterized in that: A conveying shaft (18) is arranged inside the box body (15) and above the arc-shaped filter screen (16), a conveying motor (19) is arranged on the box body (15) in cooperation with the conveying shaft (18), and a spiral conveying blade (20) is arranged on the conveying shaft (18) in cooperation with the arc-shaped filter screen (16).

6. The device for advanced treatment of printing and dyeing wastewater according to claim 5, characterized in that: The outer end of the spiral stirring blade (14) and the spiral conveying blade (20) is provided with a scraper (21), and the scraper (21) is respectively attached to the inner wall of the coagulation box (7) and the upper end of the arc-shaped filter screen (16).

7. The device for advanced treatment of printing and dyeing wastewater according to claim 6, characterized in that: The bottom of the centrifugal separator (3) is provided with a second deslagging pipe (22), and the first deslagging pipe (17) and the second deslagging pipe (22) are provided with valves (23).

8. The device for advanced treatment of printing and dyeing wastewater according to claim 7, characterized in that: A liquid discharge pipe (24) is arranged on the centrifugal separator (3), and the liquid discharge pipe (24) and the input end of the activated carbon filter box (4) are connected through a pipeline structure.

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