Device and method for treating textile printing and dyeing wastewater

Abstract

The present invention relates to the field of multi-stage wastewater treatment, specifically a textile and textile printing and dyeing wastewater treatment device and method. It includes a treatment box, a drug barrel and a drug-adding and mixing mechanism; the treatment box includes a box body and a diverter with two ends integrally connected to the middle and bottom of the box body, a filter assembly is arranged inside the diverter, the top of the box body is connected to a water inlet pipe, the bottom side is connected to a drain pipe, and a control valve is arranged on the drain pipe; the drug barrel is arranged on the top of the treatment box; the drug-adding and mixing mechanism includes a drug delivery barrel vertically slidingly arranged on the drug barrel, a lifting mechanism for driving the drug delivery barrel to rise and fall, a lifting member arranged at the bottom end of the drug delivery barrel, and a plurality of baffles rotatably arranged on the lifting member, the drug delivery barrel has a drug inlet hole and a drug outlet hole located below the drug inlet hole, and the outer periphery of the lifting member has a plurality of flow channels. The present invention can cyclically carry out multiple mixing, flocculation and filtration treatments of wastewater and drugs, and finally discharge the effectively treated wastewater, thereby ensuring the quality of wastewater treatment.

Description

Technical Field

[0001] The present invention relates to the field of multi-stage wastewater treatment, and in particular to a device and method for treating weaving and dyeing wastewater. Background Art

[0002] In the process of separating printing and dyeing wastewater, traditional sedimentation tanks mainly rely on gravity sedimentation to allow suspended particles to settle naturally, and the sedimentation process takes a long time.

[0003] Chinese patent publication number CN116253418A discloses a corduroy printing and dyeing wastewater treatment device and process, including a liquid inlet filtration mechanism, a rapid mixing mechanism, a quantitative dosing mechanism installed on a flocculation tank, and a sewage inlet pipe. The rapid mixing mechanism is installed on the flocculation tank. The wastewater treatment device not only occupies a small area, but also can quickly realize the centralized treatment of industrial wastewater and domestic sewage, with high treatment efficiency, short treatment cycle, and high applicability.

[0004] However, the above technical solution has the following shortcomings: it can only perform a single flocculation and sedimentation treatment on the wastewater, and the generated floccules will affect the effect of the agent on the wastewater, and the quality of the wastewater treatment cannot be guaranteed. Summary of the Invention

[0005] The purpose of the present invention is to address the problems existing in the background technology and propose a textile printing and dyeing wastewater treatment device and method, which can circulate the mixed flocculation and filtration treatment of wastewater and chemicals for multiple times, and finally discharge the effectively treated wastewater, thereby ensuring the quality of wastewater treatment.

[0006] On the one hand, the present invention proposes a textile fabric printing and dyeing wastewater treatment device, comprising a treatment box, a medicine barrel and a medicine adding and mixing mechanism; the treatment box comprises a box body and a diverter piece at both ends integrally connected to the middle and bottom of the box body, a filter assembly is arranged inside the diverter piece, which filters the wastewater flowing from the middle of the box body and returns it to the box body, the top of the box body is connected to a water inlet pipe, the side of the bottom end is connected to a drain pipe, and a control valve is arranged on the drain pipe; the medicine barrel is arranged on the top of the treatment box; the medicine adding and mixing mechanism comprises a medicine delivery barrel vertically slidingly arranged on the medicine barrel, a lifting mechanism for driving the medicine delivery barrel to rise and fall, a lifting member arranged at the bottom end of the medicine delivery barrel and a plurality of blocking plates rotatably arranged on the lifting member, the medicine delivery barrel has a medicine inlet hole and a medicine inlet hole. The medicine outlet hole below the medicine hole, the lifting mechanism drives the medicine delivery barrel to lift and lower back and forth. When the medicine barrel is connected with the medicine inlet hole, the medicine in the medicine barrel is discharged from the medicine outlet hole through the medicine inlet hole and the inner side of the medicine delivery barrel into the box body. When the medicine barrel is not connected with the medicine inlet hole, the medicine retained in the medicine delivery barrel is discharged into the box body through the medicine outlet hole. The lifting member is vertically slidably arranged on the inner side surface of the box body. The outer periphery of the lifting member has multiple flow channels. When the lifting member rises, the blocking plate blocks the flow channel. The lifting member and the blocking plate mix the wastewater with the medicine, and transport the wastewater and the generated flocculants to the diversion member for filtration. When the lifting member descends, the blocking plate unblocks the flow channel, and the lifting member transports the wastewater filtered on the lower side to the upper side and mixes the wastewater with the medicine.

[0007] Preferably, a water squeezing member is provided at the bottom inner side of the box body. Both the water squeezing member and the lifting member are tower-shaped structures with the top facing upwards. The outer side surface of the water squeezing member matches the inner side surface of the lifting member.

[0008] Preferably, the diverter includes a guide pipe portion, a filter pipe portion and a return pipe portion that are connected in sequence. The guide pipe portion gradually tilts upward in the direction away from the filter pipe portion, and the top end of the guide pipe portion is connected to the middle part of the box body. The return pipe portion gradually tilts downward in the direction away from the filter pipe portion, and the bottom end of the return pipe portion is connected to the bottom of the box body.

[0009] Preferably, the filter assembly includes a lifting frame arranged in the filter tube portion and a filter plate arranged on the lifting frame.

[0010] Preferably, it also includes a hanging assembly, which includes a support plate with a notch, a lifting mechanism for driving the support plate to rise and fall, a lifting rod that is inserted into the notch, and a baffle arranged at the top of the lifting rod. The top of the connection between the guide pipe part and the filter pipe part has an opening, and a baffle for sealing the opening is provided on the lifting rod.

[0011] Preferably, the medicine barrel includes an upper barrel portion and a lower barrel portion connected from top to bottom, and two rings are arranged side by side from top to bottom on the outer periphery of the drug delivery barrel. The two rings are respectively located on the upper and lower sides of the drug inlet hole. The lower ring is sealedly connected to the lower barrel portion, and the upper ring is intermittently sealedly connected to the lower barrel portion.

[0012] Preferably, a mounting barrel is rotatably provided at the lower part of the drug delivery barrel, the mounting barrel has a drug discharge hole connected to the drug outlet hole, and a plurality of obliquely distributed stirring plates are provided on the outer periphery of the mounting barrel, and the stirring plates are located above the lifting member.

[0013] In another aspect, the present invention provides a method for treating textile printing and dyeing wastewater, which is implemented by the textile printing and dyeing wastewater treatment device described above, and comprises the following steps:

[0014] S1, transporting the printing and dyeing wastewater to be treated into the treatment box through the water inlet pipe;

[0015] S2. The lifting mechanism drives the drug delivery cylinder upward, and the drug in the drug barrel is discharged from the drug delivery cylinder through the drug inlet and the drug outlet into the box. The lifting member and the blocking plate move upward, and the blocking plate blocks the flow channel. The lifting member lifts the wastewater, and the rising process mixes the wastewater and the drug, generating flocs. The wastewater mixed with the flocs flows into the diverter, and the flocs are filtered by the filter assembly. The filtered wastewater flows back to the lower part of the box;

[0016] S3. The lifting mechanism drives the drug delivery cylinder downward until the drug in the drug barrel is no longer connected to the drug inlet. During this process, the drug still flows through the drug inlet and out of the drug outlet into the box. The blocking plate is pushed open by the wastewater below the lifting member. The wastewater below the lifting member flows upward, mixes with the drug, and produces floccules.

[0017] S4. When the medicine in the medicine barrel is not connected to the medicine inlet hole, the medicine remaining in the medicine inlet hole is discharged into the box through the medicine outlet hole and mixed with the wastewater;

[0018] S5. Repeat steps S2-S4 and perform step S2 again until the preset wastewater treatment target is reached;

[0019] S6. Open the control valve and drain the wastewater in the treatment tank through the drain pipe.

[0020] Compared with the prior art, the present invention has the following beneficial technical effects: the present invention can cycle through the mixing, flocculation and filtration of wastewater and medicines for multiple times, and finally discharge the effectively treated wastewater, thereby ensuring the quality of wastewater treatment. During the lifting and lowering process of the drug delivery cylinder, the medicine in the medicine barrel can be transported to the inner side of the drug delivery cylinder through the medicine inlet hole, and discharged into the box through the medicine outlet hole for mixing with the wastewater. The lifting process of the lifting part will disturb the wastewater and medicine, promote the mixing of the wastewater and medicine, and accelerate the production of flocculants. After the flocculants in the wastewater are filtered out by the filter assembly, the wastewater flows back into the box. By driving the drug delivery cylinder to lift and lower back and forth, the wastewater treatment can be cycled multiple times to ensure that the quality of the wastewater finally discharged meets the standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of an embodiment of the present invention;

[0022] Figure 2 for Figure 1 Structural cross-sectional view;

[0023] Figure 3 for Figure 2 A magnified view of the structure at point A;

[0024] Figure 4 for Figure 2 A magnified view of the structure at B in the middle;

[0025] Figure 5 Schematic diagram of the distribution of the collars on the lifting cylinder;

[0026] Figure 6 It is a structural cross-sectional view of the processing box;

[0027] Figure 7 Schematic diagram of the distribution of blocking plates on the lifting parts.

[0028] Figure numerals: 1. water inlet pipe; 2. treatment box; 21. box body; 22. diverter; 221. guide pipe; 222. filter pipe; 223. return pipe; 2210. opening; 3. medicine barrel; 31. blockage; 32. bracket; 4. lifting member; 41. water squeezing member; 5. blocking plate; 6. medicine delivery cylinder; 601. medicine inlet hole; 602. medicine outlet hole; 7. top plate; 8. lifting mechanism 1; 9. mounting seat; 10. stirring plate; 11. mounting cylinder; 111. medicine discharge hole; 12. collar; 13. lifting frame; 14. filter plate; 15. lifting rod; 16. baffle; 161. lifting ring; 17. mounting plate; 18. lifting mechanism 2; 19. support plate; 191. notch; 20. baffle. DETAILED DESCRIPTION

[0029] Example 1, as Figure 1-Figure 7 As shown, the textile printing and dyeing wastewater treatment device proposed in this embodiment includes a treatment box 2, a drug barrel 3 and a drug adding and mixing mechanism.

[0030] like Figure 1 and Figure 2As shown, the treatment box 2 includes a box body 21 and a diverter 22 whose two ends are integrally connected to the middle and bottom of the box body 21. A plurality of diverters 22 are arranged around the box body 21 to divert the flow from multiple directions. A filter assembly is arranged inside the diverter 22 to filter the wastewater flowing from the middle of the box body 21 and return it to the box body 21. The top of the box body 21 is connected to a water inlet pipe 1, and the bottom side is connected to a drain pipe, and a control valve is arranged on the drain pipe. A certain amount of printing and dyeing wastewater to be treated is introduced into the box body 21 through the water inlet pipe 1, and then the wastewater transportation is stopped. The dosing and mixing mechanism is used to add and mix the wastewater multiple times, and the wastewater is filtered through the filter assembly. After multiple cycles of treatment, the treated wastewater is discharged through the drain pipe, and the wastewater treatment quality is high.

[0031] like Figure 6 As shown, the diverter 22 includes a flow guide 221, a filter 222, and a return 223, which are sequentially connected. The flow guide 221 gradually slopes upward away from the filter 222, with its top end connected to the middle of the housing 21. The return 223 gradually slopes downward away from the filter 222, with its bottom end connected to the bottom of the housing 21. Wastewater can flow from the middle of the housing 21 into the flow guide 221, continue into the filter 222, and then flow through the return 223 to the lower portion of the housing 21.

[0032] like Figure 4 As shown, the filter assembly includes a lifting frame 13 disposed in the filter tube portion 222 and a filter plate 14 disposed on the lifting frame 13. The bottom of the lifting frame 13 is a grid structure that can effectively support and install the filter plate 14, and the filter plate 14 is used to filter out flocculants in the wastewater.

[0033] like Figure 1 and Figure 2 As shown, a reagent barrel 3 is mounted on top of the treatment tank 2 and comprises an upper barrel portion and a lower cylindrical portion, which are connected from top to bottom. The upper barrel portion has a barrel opening at its top, to which a plug 31 is removably attached, facilitating the addition of flocculating agent into the barrel 3. When using this wastewater treatment device, plug 31 is opened to maintain air circulation inside and outside the barrel 3, allowing the agent in the barrel 3 to flow into the drug inlet 601. Multiple brackets 32 are provided between the bottom of the upper barrel portion and the top of the housing 21 to support the barrel 3.

[0034] The drug adding and mixing mechanism includes a drug delivery cartridge 6 that is vertically slidably mounted on the medicine barrel 3, a lifting mechanism 8 that drives the drug delivery cartridge 6 to rise and fall, a lifting member 4 that is mounted at the bottom end of the drug delivery cartridge 6, and a plurality of blocking plates 5 that are rotatably mounted on the lifting member 4. A mounting seat 9 is mounted on the box body 21, and a lifting mechanism 8 is vertically mounted on the mounting seat 9. A top plate 7 is mounted on the top end. The drug delivery cartridge 6 is vertically mounted on the top plate 7. The lifting mechanism 8 uses a hydraulic cylinder, so that the lifting and lowering of the drug delivery cartridge 6 is achieved by the extension and retraction of the lifting mechanism 8. The drug delivery cartridge 6 has a drug inlet 601 and a drug outlet 602 located below the drug inlet 601. There are multiple drug inlet holes 601 and multiple drug outlet holes 602. The inside of the drug delivery cartridge 6 is hollow, with the top of the hollow area located above the drug inlet 601 and the bottom of the hollow area located below the drug outlet 602. The lifting mechanism 8 drives the drug delivery cylinder 6 to lift and lower back and forth. When the medicine barrel 3 is connected to the medicine inlet 601, the medicine in the medicine barrel 3 is discharged from the medicine outlet 602 via the medicine inlet 601 to the box body 21 via the inner side of the medicine delivery cylinder 6. At this time, the discharge speed is relatively high. When the medicine barrel 3 is not connected to the medicine inlet 601, the medicine remaining in the drug delivery cylinder 6 is discharged from the medicine outlet 602 to the box body 21. At this time, the discharge speed is relatively low. In summary, continuous drug addition can be performed. The lifting member 4 is vertically slidably arranged on the inner side of the box body 21. The outer periphery of the lifting member 4 has multiple flow channels, and the blocking plate 5 intermittently blocks the flow channels. During the upward and downward movement of the lifting member 4, the medicine can be discharged through the medicine discharge hole 111. Among them, when the lifting member 4 rises, the blocking plate 5 blocks the flow channel. The lifting member 4 and the blocking plate 5 mix the wastewater with the medicine, and transport the wastewater and the generated flocculants to the diverter 22 for filtration. When the lifting member 4 descends, the wastewater below the lifting member 4 flushes open the blocking plate 5, and the blocking plate 5 releases the blockage of the flow channel. The lifting member 4 transports the wastewater filtered on the lower side to the upper side and mixes the wastewater with the chemical. The wastewater flows until it contacts and mixes with the chemical to produce floccules.

[0035] like Figure 2 and Figure 5 As shown, two collars 12 are arranged side by side from top to bottom on the outer circumference of the drug delivery barrel 6. The two collars 12 are respectively located on the upper and lower sides of the drug inlet 601. The lower collar 12 maintains a sealed connection with the lower barrel of the medicine barrel 3, and the upper collar 12 is intermittently sealed with the lower barrel of the medicine barrel 3. During the lifting and lowering process of the drug delivery barrel 6, the lower collar 12 maintains a sealed connection with the lower barrel. During the rising process of the drug delivery barrel 6, when the upper collar 12 moves from the lower barrel to the inner side of the upper barrel of the medicine barrel 3, the drug inlet 601 is connected with the upper barrel, and the medicine in the upper barrel can flow into the drug delivery barrel 6 through the drug inlet 601 and be discharged into the box body 21 through the drug outlet 602. During the descent of the drug delivery barrel 6, the upper collar 12 gradually moves from the upper barrel portion to the inner side of the lower barrel portion, and finally separates the drug inlet hole 601 from the upper barrel portion. The medicine inside the upper barrel portion of the medicine barrel 3 will no longer be delivered through the drug inlet hole 601, but the medicine remaining in the drug delivery barrel 6 will continue to be discharged into the box body 21.

[0036] The treatment method of the textile printing and dyeing wastewater treatment device comprises the following steps:

[0037] S1, the water inlet pipe 1 is connected to the external printing and dyeing wastewater source, and the wastewater is pumped by the water pump, and the printing and dyeing wastewater to be treated is transported to the treatment box 2 through the water inlet pipe 1. A certain amount of wastewater is transported each time. When the amount of wastewater is reached, the water pump is shut down;

[0038] S2. Lifting mechanism 18 drives drug delivery cylinder 6 upward, and the drug in drug barrel 3 is discharged from drug delivery cylinder 6 through drug inlet hole 601 and drug outlet hole 602 into housing 21. Lifting member 4 and blocking plate 5 move upward, blocking plate 5 blocks the flow channel, and lifting member 4 lifts the wastewater. The upward process mixes the wastewater and drug, producing flocs. The wastewater mixed with flocs flows into diverter 22, and the flocs are filtered by the filter assembly. The filtered wastewater flows back to the lower part of housing 21.

[0039] S3. Lifting mechanism 18 drives drug delivery cylinder 6 downward until the drug in medicine barrel 3 is no longer connected to drug inlet 601. During this process, the drug still flows through drug inlet 601 and is discharged from the inner side of drug delivery cylinder 6 to drug outlet 602 into box body 21. Blocking plate 5 is pushed open by wastewater below lifting member 4. Wastewater below lifting member 4 flows upward, mixes with the drug, and produces floccules.

[0040] S4. When the medicine in the medicine barrel 3 is not connected to the medicine inlet hole 601, the medicine remaining in the medicine inlet hole 601 is discharged into the box body 21 through the medicine outlet hole 602 and mixed with the wastewater;

[0041] S5. Repeat steps S2-S4 and perform step S2 again to move the lifting member 4 downward to the limit position, exposing the connection between the box body 21 and the drain pipe, until the preset wastewater treatment target is achieved;

[0042] S6. Open the control valve on the drain pipe and discharge the wastewater that has been treated and meets the standards in the treatment box 2 through the drain pipe.

[0043] This embodiment can cycle through multiple rounds of wastewater and drug mixing, flocculation, and filtration, ultimately discharging effectively treated wastewater and ensuring wastewater treatment quality. During the raising and lowering of the drug delivery cylinder 6, the drug within the drug barrel 3 is transported to the inside of the drug delivery cylinder 6 through the drug inlet 601 and discharged into the housing 21 through the drug outlet 602 for mixing with the wastewater. When the drug delivery cylinder 6 descends to its limit, the drug within the upper barrel no longer flows into the drug inlet 601. The raising and lowering of the lifting member 4 disturbs the wastewater and drug, promoting their mixing and accelerating the formation of flocs. As the lifting member 4 moves upward, it dumps the floc-laden wastewater into the diverter 22, where it is filtered by the filter assembly and then returned to the housing 21. As the lifting member 4 moves downward, it redirects the filtered wastewater to the upper surface, re-mixing the wastewater and drug, and preparing for further lifting of the wastewater and filtration of the flocs. By driving the medicine delivery cylinder 6 to rise and fall back and forth, the wastewater treatment can be carried out in a cycle for multiple times, thereby ensuring that the quality of the wastewater finally discharged meets the standards.

[0044] Example 2, as Figure 1-Figure 7 As shown, a textile fabric printing and dyeing wastewater treatment device proposed in this embodiment, compared with the first embodiment, in this embodiment, a water squeezing member 41 is provided at the bottom inner side of the box body 21, and the water squeezing member 41 and the lifting member 4 are both tower-shaped structures with the top of the tower facing upward, and the outer side surface of the water squeezing member 41 is consistent with the inner side surface of the lifting member 4. When the lifting member 4 moves down to the extreme position, the inner side surface of the lifting member 4 contacts the outer side surface of the water squeezing member 41, and can basically squeeze the wastewater on the upper side of the water squeezing member 41 to the side of the upper surface of the lifting member 4 through the flow channel. A part of the wastewater in the filter pipe part 222 and the reflux pipe part 223 can flow to the side of the upper surface of the lifting member 4, so that the wastewater can be lifted and mixed with the agent in the subsequent process to produce flocculants, and filtered and treated by the filter component. When the lifting member 4 rises, the waste water in the filter tube portion 222 and the return tube portion 223 that has not flowed to the upper surface side of the lifting member 4 will flow to the water squeezing member 41 after the lifting member 4 moves upward, waiting for the water squeezing flow process of the water squeezing member 41 when the lifting member 4 moves down next time.

[0045] This embodiment allows wastewater to flow effectively between the upper and lower sides of the lifting member 4, facilitating effective flocculation and filtration of the wastewater within the treatment tank 2, thereby ensuring treatment quality. For each volume of wastewater processed by this device, when the lifting member 4 descends to engage the water-discharging member 41, the wastewater level within the treatment tank 2 is no higher than the height of the filter plates 14, preventing flocculants on the filter plates 14 from being washed upward during the wastewater treatment process.

[0046] Example 3, as Figure 1-Figure 7As shown, the present embodiment proposes a textile fabric printing and dyeing wastewater treatment device. Compared with the first embodiment, the wastewater treatment device in the present embodiment further includes a hanging assembly, which includes a support plate 19 with a notch 191, a lifting mechanism 18 for driving the support plate 19 to rise and fall, a lifting rod 15 that fits into the notch 191, and a stopper 16 provided at the top of the lifting rod 15. A mounting plate 17 is provided on the filter tube portion 222, and the lifting mechanism 18 is vertically provided on the mounting plate 17. The lifting mechanism 18 adopts an air cylinder or a hydraulic cylinder. When it is necessary to clean the flocculants on the filter plate 14, the support plate 19 is driven to rise by the lifting mechanism 18, and the support plate 19 drives the stopper 16 and the lifting rod 15 to rise. The lifting rod 15 drives the filter plate 14 to rise through the lifting frame 13. The top of the connection between the flow guide tube 221 and the filter tube 222 has an opening 2210. The lifting frame 13 and filter plate 14 can be moved upward from the opening 2210, making it convenient for workers to clean flocculants on the filter plate 14. Alternatively, the lifting rod 15 can be removed from the inside of the notch 191, and a new filter assembly can be replaced and re-installed into the notch 191 of the support plate 19. A baffle 20 is provided on the lifting rod 15 to block the opening 2210. After cleaning the filter assembly or replacing it with a new one, the lifting mechanism 18 drives the support plate 19 downward, and the filter assembly moves downward into the filter tube 222. The baffle 20 blocks the opening 2210 to prevent wastewater from splashing out.

[0047] Furthermore, a lifting ring 161 is provided at the top of the stopper 16. When the lifting rod 15 and the stopper 16 need to be removed from the support plate 19, a hook or a rod-shaped tool can be inserted into the lifting ring 161 to facilitate the removal operation. Similarly, when the lifting rod 15 and the stopper 16 need to be installed, a hook or a rod-shaped tool can also be inserted into the lifting ring 161 to assist the installation operation.

[0048] This embodiment can lift the filter assembly to facilitate cleaning of the filter plate 14 or replacement of a new filter assembly for installation, and then readjust it to the filter tube portion 222 to filter the flocculants, thereby ensuring the filtering effect of the filter assembly.

[0049] Example 4, as Figure 1-Figure 7 As shown, the present embodiment proposes a textile fabric printing and dyeing wastewater treatment device. Compared with the first embodiment, in the present embodiment, a mounting cylinder 11 is rotatably provided at the lower part of the drug delivery cylinder 6. The mounting cylinder 11 has a drug discharge hole 111 connected to the drug outlet hole 602. A plurality of inclined stirring plates 10 are provided on the periphery of the mounting cylinder 11. The stirring plates 10 are located above the lifting member 4. During the lifting process of the lifting member 4, the wastewater can drive the inclined stirring plates 10 to rotate. The stirring plates 10 stir the wastewater and the agent, thereby improving the mixing effect and facilitating the generation of flocculants. A plurality of drug discharge holes 111 between two adjacent stirring plates 10 on the mounting cylinder 11 are provided along a spiral direction. The spiral direction is the same as the inclined direction of the stirring plate 10. The agent discharged from the drug discharge hole 111 can be effectively dispersed by the stirring plate 10.

[0050] In this embodiment, when the stirring plate 10 rotates, the mounting cylinder 11 rotates, and the medicine discharge hole 111 is intermittently connected with the medicine outlet holes 602 in different areas, so that the medicine can be discharged in different directions to improve the uniformity of the medicine dispersion. The mounting cylinder 11 can also be used to scrape the outlet of the medicine outlet hole 602 to prevent the medicine outlet hole 602 from being blocked by flocs.

[0051] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A textile printing and dyeing wastewater treatment device, characterized in that: include: The treatment box (2) comprises a box body (21) and a diverter (22) whose two ends are connected to the middle and bottom of the box body (21) in an integral manner. The diverter (22) is provided with a filter assembly inside to filter the wastewater flowing from the middle of the box body (21) and return it to the box body (21). The top of the box body (21) is connected to a water inlet pipe (1), and the side of the bottom end is connected to a drain pipe, and a control valve is provided on the drain pipe. A medicine barrel (3) is arranged on the top of the treatment box (2); The drug adding and mixing mechanism comprises a drug delivery barrel (6) vertically slidingly arranged on a drug barrel (3), a lifting mechanism (8) for driving the drug delivery barrel (6) to rise and fall, a lifting member (4) arranged at the bottom end of the drug delivery barrel (6), and a plurality of blocking plates (5) rotatably arranged on the lifting member (4), wherein the drug delivery barrel (6) has a drug inlet hole (601) and a drug outlet hole (602) located below the drug inlet hole (601), and the lifting mechanism (8) drives the drug delivery barrel (6) to rise and fall back and forth, and when the drug barrel (3) is connected to the drug inlet hole (601), the drug in the drug barrel (3) is discharged from the drug outlet hole (602) via the inner side of the drug delivery barrel (6) through the drug inlet hole (601) to the box body (21). When the medicine barrel (3) is not connected to the medicine inlet hole (601), the medicine retained in the medicine delivery cylinder (6) is discharged into the box body (21) through the medicine outlet hole (602). The lifting member (4) is vertically slidably arranged on the inner side surface of the box body (21). The outer periphery of the lifting member (4) has multiple flow channels. When the lifting member (4) rises, the blocking plate (5) blocks the flow channel. The lifting member (4) and the blocking plate (5) mix the wastewater with the medicine and transport the wastewater and the generated flocculants to the diversion member (22) for filtration. When the lifting member (4) descends, the blocking plate (5) unblocks the flow channel. The lifting member (4) transports the filtered wastewater on the lower side to the upper side and mixes the wastewater with the medicine.

2. The textile printing and dyeing wastewater treatment device according to claim 1, characterized in that: A water squeezing member (41) is provided at the bottom inner side of the box body (21). The water squeezing member (41) and the lifting member (4) are both tower-shaped structures with the top facing upwards. The outer side surface of the water squeezing member (41) is consistent with the inner side surface of the lifting member (4).

3. The textile printing and dyeing wastewater treatment device according to claim 1, characterized in that: The flow diverter (22) comprises a flow guide pipe portion (221), a filter pipe portion (222), and a return pipe portion (223) which are connected in sequence. The flow guide pipe portion (221) gradually tilts upward in a direction away from the filter pipe portion (222), and the top end of the flow guide pipe portion (221) is connected to the middle of the box body (21). The return pipe portion (223) gradually tilts downward in a direction away from the filter pipe portion (222), and the bottom end of the return pipe portion (223) is connected to the bottom of the box body (21).

4. The textile printing and dyeing wastewater treatment device according to claim 3, characterized in that: The filter assembly comprises a lifting frame (13) arranged in the filter tube portion (222) and a filter plate (14) arranged on the lifting frame (13).

5. The textile printing and dyeing wastewater treatment device according to claim 4, characterized in that: The device further comprises a hanging assembly, which comprises a support plate (19) having a notch (191), a second lifting mechanism (18) for driving the support plate (19) to rise and fall, a lifting rod (15) that engages the notch (191), and a baffle (16) disposed at the top end of the lifting rod (15); an opening (2210) is disposed at the top end of the connection between the guide tube portion (221) and the filter tube portion (222); and a baffle (20) for blocking the opening (2210) is disposed on the lifting rod (15).

6. The textile printing and dyeing wastewater treatment device according to claim 1, characterized in that: The medicine barrel (3) comprises an upper barrel portion and a lower barrel portion which are connected from top to bottom. Two collars (12) are arranged side by side from top to bottom on the outer periphery of the medicine delivery barrel (6). The two collars (12) are respectively located on the upper and lower sides of the medicine inlet hole (601). The lower collar (12) maintains a sealed connection with the lower barrel portion, and the upper collar (12) is intermittently sealed with the lower barrel portion.

7. The textile printing and dyeing wastewater treatment device according to claim 1, characterized in that: A mounting barrel (11) is rotatably provided at the lower portion of the drug delivery barrel (6), and the mounting barrel (11) has a drug discharge hole (111) connected to the drug outlet hole (602). A plurality of obliquely distributed stirring plates (10) are provided on the outer periphery of the mounting barrel (11), and the stirring plates (10) are located above the lifting member (4).

8. A method for treating textile printing and dyeing wastewater, which is implemented by the textile printing and dyeing wastewater treatment device according to claim 1, characterized in that: The method comprises the following steps: S1, transporting the dyeing wastewater to be treated to the treatment box (2) through the water inlet pipe (1); S2, the lifting mechanism 1 (8) drives the drug delivery barrel (6) to move upward, and the drug in the drug barrel (3) is discharged from the drug delivery barrel (6) through the drug delivery hole (601) and the inner side of the drug delivery barrel (6) from the drug outlet hole (602) into the box body (21), the lifting member (4) and the blocking plate (5) move upward, the blocking plate (5) blocks the flow channel, and the lifting member (4) lifts the wastewater. The rising process mixes the wastewater and the drug to produce flocs. The wastewater mixed with the flocs flows into the diversion member (22), the flocs are filtered by the filter assembly, and the filtered wastewater flows back to the lower part of the box body (21); S3, the lifting mechanism 1 (8) drives the drug delivery barrel (6) to move downward until the drug in the drug barrel (3) is no longer connected to the drug inlet hole (601). During this process, the drug still passes through the drug inlet hole (601) and is discharged from the drug outlet hole (602) inside the drug delivery barrel (6) into the box body (21). The blocking plate (5) is pushed open by the wastewater below the lifting member (4). The wastewater below the lifting member (4) flows upward, mixes with the drug and produces flocculants. S4. When the medicine in the medicine barrel (3) is not connected to the medicine inlet hole (601), the medicine remaining in the medicine inlet hole (601) is discharged into the box (21) through the medicine outlet hole (602) and mixed with the wastewater; S5. Repeat steps S2-S4 and perform step S2 again until the preset wastewater treatment target is reached; S6. Open the control valve and drain the wastewater in the treatment box (2) through the drain pipe.

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