A multi-stage bleaching process wastewater cascade filtration and reuse device

Abstract

The utility model relates to wastewater treatment technical field, concretely relates to a kind of wastewater ladder filter reuse device of multistage bleaching procedure, including the multiple filtration reuse box of ladder distribution, the water outlet is opened in filtration reuse box side wall, and water outlet is fixedly connected with water outlet pipe, and separation component is arranged on filtration reuse box.The utility model, by setting the separation plate that linear movement along slide rail with screw rod rotation, it is convenient to adjust filtration space flexibly according to incoming water quality and quantity, and by the linkage of moving block, turnover block and push block, the downlink drive baffle of separation plate is closed in the water outlet in corresponding space, realizes zoned operation and maintenance, when needing to clean or maintain half space of box, close the water outlet of this area, wastewater is guided to the other side space and continues to handle, to avoid the disadvantages of shutdown maintenance, greatly guarantee the continuity and production stability of wastewater treatment process.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a wastewater step-type filtration and reuse device for a multi-stage bleaching process. Background Technology

[0002] In the multi-stage bleaching process, the wastewater contains a large number of impurities and harmful substances. Direct discharge would seriously pollute the environment. The wastewater step-by-step filtration and reuse device can filter the wastewater step by step, realize the recycling of water resources, reduce production costs and environmental hazards, and is therefore very necessary.

[0003] The traditional multi-stage bleaching process wastewater step-by-step filtration and reuse device consists of multiple filter boxes arranged in a stepped manner. During use, the wastewater flows through the filter boxes step by step due to the difference in water level. With the help of different filtration structures in each box, impurities in the water are gradually removed, so that the treated water meets the reuse standard and can be reused.

[0004] However, traditional devices have certain limitations in practical use. Because the volume of each filter box is fixed, they cannot respond to dynamic fluctuations in the quality and quantity of incoming water. Under high-load conditions, the effective hydraulic retention time of wastewater in a single box is insufficient, leading to excessively high surface velocity of the filter media. This not only reduces the purification effect but also easily causes rapid clogging and a surge in pressure loss. Conversely, under low-load conditions, the excessively large box volume results in excessively long wastewater retention time, leading to low equipment utilization. Furthermore, when cleaning and maintenance of the boxes are required, the entire wastewater treatment process must be paused, forcing an interruption of wastewater treatment operations. This not only disrupts the established production rhythm but may also cause wastewater accumulation due to untimely processing, affecting overall production efficiency and stability. Therefore, a multi-stage bleaching wastewater cascade filtration and reuse device is proposed to solve the above problems. Utility Model Content

[0005] To address the aforementioned shortcomings of existing technologies, this invention provides a multi-stage bleaching wastewater filtration and reuse device. This effectively solves the problems of existing technologies where the fixed volume of each filter box makes it unable to respond to dynamic fluctuations in incoming water quality and quantity. Under high-load conditions, insufficient effective hydraulic retention time of wastewater within a single box leads to excessively high surface velocity of the filter media, resulting in decreased purification efficiency and increased risk of rapid blockage and pressure loss. Conversely, under low-load conditions, excessively large box volumes cause excessively long wastewater retention times, resulting in low equipment utilization. Furthermore, cleaning and maintenance of the boxes require suspending the entire wastewater treatment process, forcing an interruption of wastewater treatment operations. This disrupts the planned production rhythm and may lead to wastewater accumulation due to delayed treatment, affecting overall production efficiency and stability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a multi-stage bleaching process wastewater step-type filtration and reuse device, including: Multiple sets of filter reuse boxes are arranged in a stepped manner. Each filter reuse box has an outlet on its side wall, and an outlet pipe is fixedly connected inside the outlet. A partition assembly is provided on each filter reuse box, and the partition assembly includes: The partition plate is fixedly provided with a slide rail inside the filter reuse box, and the partition plate is slidably connected in the slide rail. The drive unit includes a support frame fixedly installed on the top of the filter reuse box and a lead screw rotatably connected to the inner cavity of the support frame, wherein the partition plate is threadedly connected to the outer wall of the lead screw; A sealing unit, which is installed inside the outlet, is used to block the water flow at the outlet.

[0007] Preferably, a movable block is fixedly connected to the outer wall of the partition plate, and a movable groove is opened on the outer wall of the support frame, with one end of the movable block extending outward through the movable groove.

[0008] Preferably, one end of the movable block that moves out of the support frame is rotatably connected to a flipping block via a pin, and a push block is fixedly connected to the outer wall of the flipping block.

[0009] Preferably, the enclosed unit includes a baffle, and a groove is provided on the top of the filter reuse box wall, with the bottom of the baffle slidably connected in the groove.

[0010] Preferably, the inner cavity of the filter reuse box is provided with a guide groove, and a slider is engaged with the inner wall of the guide groove. The slider is fixedly installed on the outer wall of the baffle.

[0011] Preferably, a spring strip is fixedly provided on the inner wall of the guide groove, and the other end of the spring strip is fixedly connected to the slider. In its natural state, the spring strip pushes the slider to move upward.

[0012] Preferably, the top of the support frame is rotatably connected to an adjusting shaft, and the adjusting shaft is fixedly connected to a lead screw.

[0013] Preferably, a silicone pad is fixedly provided on the outer wall of the partition plate.

[0014] The technical solution provided by this utility model has the following advantages compared with the known prior art: In this invention, by setting up a partition plate that moves linearly along the slide rail with the rotation of the lead screw, the filtration space can be flexibly adjusted according to the quality and quantity of the incoming water. When dealing with small volumes of high-concentration wastewater, the partition plate is lowered to reduce the volume and increase the hydraulic retention time. When dealing with large volumes of wastewater, the partition plate is raised to increase the volume, thereby improving equipment utilization and filtration effect. Furthermore, through the linkage of the moving block, the flipping block, and the pushing block, the downward drive baffle of the partition plate closes the outlet in the corresponding space, realizing zoned operation and maintenance. When it is necessary to clean or maintain half of the tank space, the outlet of that area is closed, and the wastewater is guided to the other side of the space for continued treatment. This avoids the drawbacks of downtime maintenance, greatly ensuring the continuity of the wastewater treatment process and the stability of production, and providing reliable support for the efficient recycling of water resources. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is the filter recycling box of this utility model; Figure 3 This is a cross-sectional view of the support frame structure of this utility model; Figure 4 This is a schematic diagram of the outlet structure of this utility model; Figure 5 This is a schematic diagram of the baffle structure of this utility model.

[0017] Reference numerals in the attached diagram: 1. Filter recycling box; 101. Outlet; 102. Outlet pipe; 103. Slide rail; 2. Divider plate; 201. Silicone pad; 3. Support frame; 301. Lead screw; 302. Adjusting shaft; 303. Moving groove; 304. Moving block; 4. Flipping block; 401. Push block; 5. Baffle; 501. Spring strip; 502. Slider. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] The present invention will be further described below with reference to the embodiments.

[0020] See attached document Figure 1-5 A multi-stage bleaching process wastewater filtration and reuse device includes: Multiple sets of filtration and reuse boxes 1 are arranged in a stepped manner. Each filtration and reuse box 1 is used to hold wastewater to be treated. The multiple boxes are arranged in a stepped manner, with wastewater flowing from one stage to the next for multi-stage filtration. Each filtration and reuse box 1 has an outlet 101 on its side wall, and an outlet pipe 102 is fixedly connected inside the outlet 101 to guide the filtered water to the next treatment unit. A separation assembly is provided on each filtration and reuse box 1, which includes: The partition plate 2 is fixedly installed in the inner cavity of the filter reuse box 1 with a slide rail 103, and the partition plate 2 is slidably connected in the slide rail 103 to limit the movement path of the partition plate 2, prevent it from deflecting during movement, and ensure smooth movement. When the partition plate 2 is lowered, it fits tightly against the bottom of the inner cavity of the box, thereby dividing the inner cavity of the filter reuse box 1 into two spaces, thus reducing the effective filtration volume. It is suitable for small volume and high concentration wastewater, which can increase the hydraulic retention time and improve the filtration effect. When a large volume of water needs to be treated, it can be raised to increase the effective volume. The drive unit includes a support frame 3 fixedly installed on the top of the filter reuse box 1 and a lead screw 301 rotatably connected to the inner cavity of the support frame 3. The partition plate 2 is threadedly connected to the outer wall of the lead screw 301. When the lead screw 301 rotates, due to the interaction of the threads, the partition plate 2 will move linearly along the axial direction of the lead screw 301 to achieve position adjustment. A sealing unit is installed inside the outlet 101 to block the water flow from the outlet 101.

[0021] A movable block 304 is fixedly connected to the outer wall of the partition plate 2. A movable groove 303 is opened on the outer wall of the support frame 3, and one end of the movable block 304 extends outward through the movable groove 303. The movable block 304 moves in the movable groove 303, which plays a role in assisting the movement and guiding the partition plate 2, preventing the partition plate 2 from deviating during movement, promoting the stability of its movement, and extending outward through the movable block 3 to provide force for the subsequent downward movement of the push block 401.

[0022] The movable block 304 is rotatably connected to the flip block 4 at one end of the support frame 3 via a pin. The outer wall of the flip block 4 is fixedly connected to the push block 401. When in use, the user adjusts the position of the flip block 4 according to the space position in the filter recycling box 1 as needed. When the partition plate 2 moves downward, the movable block 304 drives the flip block 4 and the push block 401 to move downward.

[0023] The enclosed unit includes a baffle 5. A groove is provided on the top of the filter reuse box 1, and the bottom of the baffle 5 is slidably connected in the groove. When drainage is not required, the baffle 5 descends to seal the outlet 101. When wastewater needs to be discharged, the baffle 5 rises to open the outlet 101. A silicone pad 201 is also provided on the outer wall of the baffle 5 to promote sealing.

[0024] The filter reuse box 1 has a guide groove in its inner cavity, and a slider 502 is engaged with the inner wall of the guide groove. The slider 502 is fixedly installed on the outer wall of the baffle 5. By restricting the slider 502 to slide in the guide groove, the movement path and direction of the baffle 5 are limited.

[0025] A spring strip 501 is fixedly installed on the inner wall of the guide groove, and the other end of the spring strip 501 is fixedly connected to the slider 502. In the natural state, the spring strip 501 pushes the slider 502 to move upward, thereby causing the baffle 5 to rise and open the outlet 101. When it is necessary to close the outlet 101, the push block 401 moves downward, so that the push block 401 overcomes the elastic force of the spring strip 501, and the baffle 5 falls to seal the outlet 101.

[0026] The top of the support frame 3 is rotatably connected to an adjusting shaft 302, and the adjusting shaft 302 is fixedly connected to a lead screw 301. By rotating the adjusting shaft 302, the lead screw 301 is driven to rotate, thereby controlling the movement of the partition plate 2. The operation is convenient and the position of the partition plate 2 can be controlled.

[0027] A silicone pad 201 is fixedly installed on the outer wall of the partition plate 2. The silicone pad 201 has good sealing performance. When the partition plate 2 is moved to the appropriate position, the silicone pad 201 tightly adheres to the inner wall of the filter reuse box 1, effectively preventing wastewater from leaking between the partition areas and ensuring the independence of each filtration stage.

[0028] Working principle: In use, the adjustment shaft 302 is rotated to drive the lead screw 301 to rotate. When the lead screw 301 rotates, the threaded partition plate 2 moves linearly along the slide rail 103. When treating small volumes of high-concentration wastewater, the partition plate 2 is lowered, and the silicone pad 201 on its outer wall tightly adheres to the inner wall of the filter reuse box 1, dividing the inner cavity into two spaces. This reduces the effective filtration volume, increases the hydraulic retention time, and improves the filtration effect. When the filter reuse box 1 needs to be cleaned, one side of the space is cleaned first, while the other side continues to be used. The entire treatment process does not need to be interrupted due to cleaning the box, ensuring the continuity of wastewater treatment operations. When treating large volumes of water, the partition plate 2 is raised to increase the effective volume, allowing the filtration space to be flexibly adjusted according to usage needs, thus improving practicality. In use, the space on this side of the filter reuse box 1 is treated. When drainage is not required, the flip block 4 is rotated to the side of the filter reuse box 1 where drainage is not required. The partition plate 2 moves down, causing the moving block 304 to move downward, which in turn causes the flip block 4 and the push block 401 to move downward. During the descent, the push block 401 presses against the baffle 5, which overcomes the elastic force of the spring bar 501, causing the slider 502 to slide horizontally along the guide groove until the outlet 101 is closed, thus achieving interception. When the adjusting shaft 302 is rotated in the opposite direction to lift the partition plate 2, the moving block 304 moves upward, relieving the pressure on the push block 401. By moving the baffle 5 upward, and with the pushing force of the spring bar 501 pushing the baffle 5 upward, the baffle 5 is kept above the outlet 101, promoting the outlet 101 to remain open. The treated water then flows into the next stage filter reuse box 1 through the outlet pipe 102 for further fine filtration. This cycle is repeated to achieve a stepped, adjustable-volume continuous filtration and reuse of wastewater.

[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wastewater cascade filtration and reuse device for a multi-stage bleaching process, comprising multiple sets of filtration and reuse boxes (1) arranged in a stepped manner, wherein each filtration and reuse box (1) has an outlet (101) on its side wall, and an outlet pipe (102) is fixedly connected inside the outlet (101), characterized in that, The filter reuse box (1) is provided with a separation component, which includes: The partition plate (2) is fixedly provided with a slide rail (103) in the inner cavity of the filter reuse box (1), and the partition plate (2) is slidably connected in the slide rail (103); The drive unit includes a support frame (3) fixedly installed on the top of the filter reuse box (1) and a lead screw (301) rotatably connected to the inner cavity of the support frame (3), wherein the partition plate (2) is threadedly connected to the outer wall of the lead screw (301); A sealing unit is provided inside the outlet (101) to block the water flow from the outlet (101).

2. The wastewater step-type filtration and reuse device for a multi-stage bleaching process according to claim 1, characterized in that, The outer wall of the partition plate (2) is fixedly connected to a movable block (304), and the outer wall of the support frame (3) is provided with a movable groove (303), and one end of the movable block (304) extends outward through the movable groove (303) to the support frame (3).

3. The wastewater step-type filtration and reuse device for a multi-stage bleaching process according to claim 2, characterized in that, The moving block (304) is rotatably connected to a flipping block (4) at one end of the support frame (3) via a pin, and a push block (401) is fixedly connected to the outer wall of the flipping block (4).

4. The wastewater step-type filtration and reuse device for a multi-stage bleaching process according to claim 1, characterized in that, The enclosed unit includes a baffle (5), and the top of the filter reuse box (1) has a sliding groove, and the bottom of the baffle (5) is slidably connected in the sliding groove.

5. The wastewater step-type filtration and reuse device for a multi-stage bleaching process according to claim 4, characterized in that, The filter reuse box (1) has a guide groove in its inner cavity, and a slider (502) is engaged with the inner wall of the guide groove. The slider (502) is fixedly installed on the outer wall of the baffle (5).

6. The wastewater step-type filtration and reuse device for a multi-stage bleaching process according to claim 5, characterized in that, A spring strip (501) is fixedly installed on the inner wall of the guide groove, and the other end of the spring strip (501) is fixedly connected to the slider (502). In the natural state, the spring strip (501) pushes the slider (502) to move upward.

7. The wastewater step-type filtration and reuse device for a multi-stage bleaching process according to claim 1, characterized in that, The top of the support frame (3) is rotatably connected to an adjusting shaft (302), and the adjusting shaft (302) is fixedly connected to a lead screw (301).

8. The wastewater step-type filtration and reuse device for a multi-stage bleaching process according to claim 1, characterized in that, A silicone pad (201) is fixedly installed on the outer wall of the partition plate (2).

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