A device for removing solid impurities from printing and dyeing wastewater

Abstract

The utility model belongs to printing and dyeing wastewater treatment technical field, concretely is a kind of printing and dyeing wastewater solid impurities removal device, including the wastewater treatment tank body of top opening, the middle part of tank body is equipped with inlet pipe, the middle upper portion of tank body is equipped with fixed ring, the fixed ring is rotatably connected with ring plate, the inboard of ring plate is equipped with filter screen, tank body side wall and located the upper portion of filter screen is equipped with overflow pipe, the inboard of fixed ring is equipped with scraper one and brush, the inside of tank body is equipped with the washing assembly for filter screen cleaning, the dismounting assembly for filter screen replacement is equipped on tank body. The existing printing and dyeing wastewater filter device is solved, and the fixed filter screen structure is used, but its core defect lies in that filter screen is easy to block and difficult to clean, solid impurities in printing and dyeing wastewater is easy to wind on filter screen surface, and small dye particles are easy to embed filter screen aperture, to cause the problem of the rapid decline of filtration flux.

Description

Technical Field

[0001] This utility model belongs to the field of dyeing and printing wastewater treatment technology, and in particular relates to a device for removing solid impurities from dyeing and printing wastewater. Background Technology

[0002] As a core link in the textile industry, the dyeing and printing sector generates a large amount of industrial wastewater containing solid impurities during the dyeing, printing, and finishing processes. These solid impurities are complex in composition, mainly including fabric fiber fragments, undissolved dye particles, sizing residues, and auxiliary agent precipitates. If discharged directly without effective treatment, they will not only clog municipal pipe networks and pollute aquatic ecosystems, but may also threaten soil quality and human health due to the infiltration of harmful substances from these impurities. Therefore, efficiently removing solid impurities from dyeing and printing wastewater is a crucial preliminary step towards achieving compliant wastewater treatment, and a vital foundation for ensuring environmental compliance for enterprises and reducing the burden on subsequent treatment processes.

[0003] Currently, dyeing and printing enterprises mainly use traditional filtration devices, sedimentation tanks, and centrifugal separation equipment to remove solid impurities from wastewater. However, these methods have significant limitations in practical applications and cannot meet the requirements for efficient, stable, and low-consumption treatment.

[0004] Existing dyeing and printing wastewater filtration devices mostly adopt a fixed filter screen structure, which intercepts solid impurities in the wastewater through the pores of the filter screen. This is commonly found in small dyeing and printing workshops or pretreatment stages. However, its core drawback is that the filter screen is easy to clog and difficult to clean. Solid impurities in the dyeing and printing wastewater are easy to get entangled on the surface of the filter screen, and tiny dye particles are easy to get embedded in the pores of the filter screen, resulting in a rapid decrease in filtration throughput.

[0005] To solve the above problems, there is an urgent need for a device for removing solid impurities from dyeing and printing wastewater with a filter cleaning structure. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, this utility model provides a device for removing solid impurities from dyeing and printing wastewater.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a device for removing solid impurities from dyeing and printing wastewater, comprising a wastewater treatment tank with an open top, an inlet pipe in the middle of the tank, a fixing ring in the upper middle part of the tank, a ring plate rotatably connected to the fixing ring, a filter screen on the inner side of the ring plate, an overflow pipe on the side wall of the tank above the filter screen, a scraper and a brush on the inner side of the fixing ring, a rinsing assembly for cleaning the filter screen inside the tank, and a disassembly and assembly assembly for replacing the filter screen on the tank.

[0008] Optionally, the assembly includes a placement groove on a fixing ring, a pressure plate on the placement groove, an ear plate on the pressure plate, a positioning groove on the fixing ring that mates with the ear plate, and the ear plate and the positioning groove are connected by bolts.

[0009] Optionally, the top and bottom of the ring plate are respectively provided with ring grooves, and the opposite side of the placement groove and the pressure plate is respectively provided with balls, which are in rolling connection with the ring grooves.

[0010] Optionally, a positioning plate is provided inside the tank and below the fixing ring. Multiple scrapers are provided around the positioning plate. A support ring is provided in the middle of the filter screen. Ribs are provided between the ring plate and the support ring. A positioning post is provided at the top of the positioning plate. The positioning post is engaged with the support ring to prevent rotation. A handle is provided at the top of the positioning post.

[0011] Optionally, the top of the tank is provided with an annular guide rail, and four slides are provided on the annular guide rail. The tops of the slides and the positioning column are respectively provided with slots.

[0012] Optionally, the rinsing assembly includes a spray pipe located above the tank, and the spray pipe is equipped with multiple nozzles.

[0013] Optionally, the bottom of the tank is provided with a drain pipe, and the drain pipe is equipped with a valve.

[0014] In summary, the beneficial effects of this utility model are as follows: By setting a circular stainless steel filter screen, solid impurities in dyeing and printing wastewater can be intercepted. When the water level rises to the position of the filter screen, the wastewater can be filtered through the filter screen and discharged from the overflow pipe, while solid impurities, unable to penetrate the filter screen, are retained inside the tank below the filter screen, thus achieving the separation of wastewater and solid impurities. Multiple scrapers and brushes, together with the rotatable filter screen, form a structural combination that can generate relative rotation. By rotating the handle, the positioning column is driven, which in turn drives the filter screen and the positioning plate to rotate synchronously. During the rotation of the filter screen, relative movement occurs between it and the fixed scrapers and brushes. The scrapers can scrape off the solid impurities adhering to the bottom of the filter screen, while the brushes thoroughly clean the bottom of the filter screen. The two work together to improve the cleaning effect of the filter screen. While mechanically scraping, water flows from top to bottom to wash the filter screen, which not only washes away the fine impurities remaining on the surface of the filter screen, but also peels off the tiny particles embedded in the pores of the filter screen, further improving the cleanliness of the filter screen and extending its effective service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall external structure of this utility model.

[0016] Figure 2 This is the left view of the present invention.

[0017] Figure 3 For the present utility model Figure 2 A three-dimensional cross-sectional view of point AA in the middle.

[0018] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle.

[0019] Figure 5 For the present utility model Figure 4 Enlarged view of point B in the middle.

[0020] Figure 6 For the present utility model Figure 2 3D cross-sectional view at point BB.

[0021] Figure 7 For the present utility model Figure 6 Enlarged view of point C in the middle.

[0022] Figure 8 This is a schematic diagram of the filter installation structure of this utility model.

[0023] In the diagram, 1. Tank; 2. Inlet pipe; 3. Fixing ring; 4. Ring plate; 5. Filter screen; 6. Overflow pipe; 7. Scraper 1; 8. Brush; 9. Placement groove; 10. Pressure plate; 11. Ear plate; 12. Positioning groove; 13. Ring groove; 14. Ball bearing; 15. Positioning plate; 16. Scraper 2; 17. Support ring; 18. Rib plate; 19. Positioning column; 20. Handle; 21. Circular guide rail; 22. Slide seat; 23. Slot; 24. Spray pipe; 25. Spray head; 26. Sewage pipe; 27. Valve; 28. Locking block; 29. ​​Locking groove; 30. Clean water tank; 31. Water tank; 32. Water pump. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] refer to Figure 1-8 A device for removing solid impurities from dyeing and printing wastewater includes a wastewater treatment tank 1 with an open top. A water inlet pipe 2 is provided in the middle of the tank 1. A fixing ring 3 is provided in the upper middle part of the tank 1. A ring plate 4 is rotatably connected to the fixing ring 3. A filter screen 5 is provided on the inner side of the ring plate 4. An overflow pipe 6 is provided on the side wall of the tank 1 above the filter screen 5. A scraper 7 and a brush 8 are provided on the inner side of the fixing ring 3. A rinsing assembly for cleaning the filter screen 5 is provided inside the tank 1. A disassembly and assembly assembly for replacing the filter screen 5 is provided on the tank 1.

[0026] Tank 1 is made of stainless steel. Water inlet pipe 2 is connected to the upper middle part of tank 1 and located below the fixing ring 3. Water inlet pipe 2 is set along the tangential direction of the inner wall of tank 1. The fixing ring 3 is integrally formed on the inner wall of tank 1. Ring plate 4 is rotatably connected to the fixing ring 3. Filter screen 5 is a circular ring plate 4 structure. Filter screen 5 is preferably made of stainless steel filter plate structure. Overflow pipe 6 is connected to the upper middle part of tank 1. The water inlet end of overflow pipe 6 is located above filter screen 5. Wastewater below enters the area above filter screen 5 after being filtered by filter screen 5 and is discharged from overflow pipe 6. Solid impurities will remain below filter screen 5. There are multiple scrapers 7 and brushes 8. Scrapers 7 and brushes 8 are fixed to the fixing ring 3. Scrapers 7 can scrape off solid impurities adhering to the bottom of filter screen 5, and brushes 8 can brush the bottom of filter screen 5. The cooperation of brushes 8 and scrapers 7 can improve the cleaning effect of filter screen 5 and facilitate the cleaning of the bottom of filter screen 5.

[0027] The assembly / disassembly assembly includes a placement groove 9 on a fixing ring 3, a pressure plate 10 on the placement groove 9, an ear plate 11 on the pressure plate 10, and a positioning groove 12 on the fixing ring 3 that mates with the ear plate 11. The ear plate 11 and the positioning groove 12 are connected by bolts. The placement groove 9 is located on the top inner side of the fixing ring 3, and the pressure plate 10 is placed on the placement groove 9. The ear plate 11 and the pressure plate 10 are integrally formed. There are multiple ear plates 11. The positioning groove 12 is located on the fixing ring 3, and the fixing ring 3 has screw holes. The ear plate 11 can be fixed to the fixing ring 3 by bolts, which facilitates the positioning of the ring plate 4. The ring plate 4 and the filter screen 5 can be replaced using bolts, which facilitates the deep cleaning of the filter screen 5.

[0028] The top and bottom of the ring plate 4 are respectively provided with ring grooves 13, and the opposite sides of the placement groove 9 and the pressure plate 10 are respectively provided with balls 14. The balls 14 are tumblingly connected to the ring grooves 13. The two ring grooves 13 are staggered at the top and bottom of the ring plate 4. There are multiple balls 14. The balls 14 are rotatably connected to the placement groove 9 and the pressure plate 10. The protruding part of the balls 14 can roll on the ring grooves 13, reducing the wear on the upper and lower sides of the ring plate 4.

[0029] A positioning disc 15 is located inside the tank body 1 and below the fixing ring 3. Multiple scraper blades 16 are arranged around the positioning disc 15. A support ring 17 is located in the center of the filter screen 5. A rib 18 is provided between the ring plate 4 and the support ring 17. A positioning post 19 is located at the top of the positioning disc 15. The positioning post 19 is in anti-rotation engagement with the support ring 17. A handle 20 is located at the top of the positioning post 19. The positioning disc 15 is located below the fixing ring 3. Multiple scraper blades 16 are fixed to the positioning plate, and the scraper blades 16 are circumferential. The directional arrangement is on the outside of the positioning plate 15. The support ring 17 is located at the axis of the filter screen 5. There are multiple ribs 18, which connect the ring plate 4 and the support ring 17 together. The positioning post 19 is inserted into the top of the positioning plate 15. The handle 20 is located on the top of the positioning post 19. Rotating the handle 20 can drive the filter screen 5 and the positioning plate 15 to rotate through the positioning post 19, which can make the filter screen 5 and the scraper 7 move relative to each other. The scraper 16 moves relative to the inner wall of the tank 1, which can clean the solid impurities adhering to the filter screen 5 and the inner wall of the tank 1.

[0030] The top of the tank body 1 is provided with an annular guide rail 21, and four slides 22 are provided on the annular guide rail 21. The top of the slides 22 and the positioning post 19 are respectively provided with slots 23. The annular guide rail 21 is fixed to the top of the tank body 1, and the slides 22 are slidably connected to the annular guide rail. The slots 23 are respectively opened on the top of the slides 22 and the positioning post 19. The handle 20 can be placed in the slots 23 on the top of the positioning post 19 and the two opposite slides 22, or it can be fixed to the slot 23 on the top of the positioning post 19 alone, so that the rotation of the positioning post 19 is more stable and misalignment is avoided.

[0031] The rinsing assembly includes a spray pipe 24 located above the tank 1. The spray pipe 24 is equipped with multiple nozzles 25. The spray pipe 24 is located above the tank 1, and there are multiple nozzles 25. The nozzles 25 are fixed to the bottom of the spray pipe 24. Water in the spray pipe 24 can be sprayed from above onto the filter screen 5 through the nozzles 25, which can backwash the filter screen 5.

[0032] The bottom of the tank 1 is provided with a drain pipe 26, and a valve 27 is provided on the drain pipe 26. The drain pipe 26 is connected to the bottom of the tank 1, and the valve 27 is installed on the drain pipe 26. When the valve 27 is opened, the solid impurities accumulated in the tank 1 can be easily discharged.

[0033] The specific working principle is as follows: In use, the dyeing wastewater is first pumped into the tank 1 through the inlet pipe 2. As the dyeing wastewater is pumped in, the water level will rise. When the water level is higher than the filter screen 5, the wastewater will be filtered through the filter screen 5 and discharged from the overflow pipe 6. The solid impurities in the wastewater will remain inside the tank 1 due to the presence of the filter screen 5. When the amount of solids inside the tank 1 reaches a certain level, the water supply to the tank 1 through the inlet pipe 2 is stopped, and the valve 27 is opened to discharge the solid impurities and the remaining wastewater from the tank 1.

[0034] When it is necessary to clean the filter screen 5, place the handle 20 on the slot 23 at the top of the positioning column 19 and rotate the positioning column 19 by using the handle 20. The rotation of the positioning column 19 will drive the positioning plate 15 and the filter screen 5 to rotate. During the rotation, the scraper 1 7 and the brush 8 can clean the bottom of the filter screen 5, and the scraper 2 16 can clean the inner wall of the tank 1. At the same time, the filter screen 5 can be rinsed by the spray nozzle 25 on the spray pipe 24. Some solid impurities on the filter screen 5 will fall to the bottom of the tank 1.

[0035] When it is necessary to remove the filter screen 5, remove the handle 20 and the spray pipe 24, then use a hex wrench to remove the bolts on the ear plate 11, and then remove the pressure plate 10. After removing the pressure plate 10, the filter screen 5 can be removed. After cleaning, put the filter screen 5 into the placement groove 9, and place the pressure plate 10 along the ear plate 11 and the positioning groove 12 onto the fixing ring 3, and use bolts to fix the pressure plate 10.

[0036] More specifically, the spray pipe 24 is provided with two locking blocks 28, and the slide 22 is provided with a locking groove 29. The locking blocks 28 are engaged with the locking groove 29, and the locking blocks 28 are fixed to the spray pipe 24. The locking groove 29 is opened on one side of the slide 22. The spray pipe 24 can be locked into the locking groove 29 by the two locking blocks 28, which facilitates the installation and removal of the spray pipe 24. The spray pipe 24 and the handle 20 can move separately, which can backwash different positions of the filter screen 5.

[0037] More specifically, the solid impurity removal device for dyeing and printing wastewater also includes a water purification tank 30 and a water tank 31. A water pump 32 is installed on the spray pipe 24. The inlet end of the spray pipe 24 is connected to the water tank 31. The water purification tank 30 is located on one side of the tank body 1 and can temporarily store the separated dyeing and printing wastewater. The water in the water purification tank 30 can be transported to the required location as needed. The outlet end of the overflow pipe 6 is located above the water purification tank 30. The separated water will enter the water purification tank 30. The water pump 32 can be purchased directly from the market. The water pump 32 can transport the water in the water tank 31 to the spray pipe 24 to facilitate the rinsing of the filter screen 5.

[0038] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0039] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0040] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. A device for removing solid impurities from dyeing and printing wastewater, characterized in that, The wastewater treatment tank (1) includes a top-opening tank body (1), an inlet pipe (2) in the middle of the tank body (1), a fixing ring (3) in the upper middle part of the tank body (1), a ring plate (4) rotatably connected to the fixing ring (3), a filter screen (5) on the inner side of the ring plate (4), an overflow pipe (6) on the side wall of the tank body (1) and above the filter screen (5), a scraper (7) and a brush (8) on the inner side of the fixing ring (3), a rinsing assembly for cleaning the filter screen (5) inside the tank body (1), and a disassembly and assembly assembly for replacing the filter screen (5) on the tank body (1).

2. The device for removing solid impurities from dyeing and printing wastewater according to claim 1, characterized in that, The assembly and disassembly assembly includes a placement groove (9) on a fixing ring (3), a pressure plate (10) on the placement groove (9), an ear plate (11) on the pressure plate (10), a positioning groove (12) on the fixing ring (3) that cooperates with the ear plate (11), and the ear plate (11) and the positioning groove (12) are connected by bolts.

3. The device for removing solid impurities from dyeing and printing wastewater according to claim 2, characterized in that, The top and bottom of the ring plate (4) are respectively provided with ring grooves (13), and the opposite sides of the placement groove (9) and the pressure plate (10) are respectively provided with balls (14), and the balls (14) are in rolling connection with the ring grooves (13).

4. The device for removing solid impurities from dyeing and printing wastewater according to claim 3, characterized in that, A positioning plate (15) is provided inside the tank (1) and below the fixing ring (3). Multiple scrapers (16) are provided around the positioning plate (15). A support ring (17) is provided in the middle of the filter screen (5). Ribs (18) are provided between the ring plate (4) and the support ring (17). A positioning post (19) is provided at the top of the positioning plate (15). The positioning post (19) and the support ring (17) are in anti-rotation cooperation. A handle (20) is provided at the top of the positioning post (19).

5. The device for removing solid impurities from dyeing and printing wastewater according to claim 4, characterized in that, The top of the tank (1) is provided with an annular guide rail (21), and four slides (22) are provided on the annular guide rail (21). The tops of the slides (22) and the positioning column (19) are respectively provided with slots (23).

6. The device for removing solid impurities from dyeing and printing wastewater according to claim 5, characterized in that, The rinsing assembly includes a spray pipe (24) located above the tank (1), and the spray pipe (24) is provided with a plurality of nozzles (25).

7. The device for removing solid impurities from dyeing and printing wastewater according to claim 6, characterized in that, The bottom of the tank (1) is provided with a drain pipe (26), and a valve (27) is provided on the drain pipe (26).

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