COD waste liquid layered filtration recovery device
Patent Information
- Application Number
- CN202521982489.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-09-16
AI Technical Summary
[0002]在工业生产及各类水质监测活动中，会产生大量含有高浓度COD的废液，COD废液若未经妥善处理而直接排放，将导致水体富营养化，严重破坏水生态系统平衡，对环境造成极大危害，因此需要对COD废液进行处理
[0018]与现有技术相比，本实用新型的有益效果是：该COD废液分层过滤回收装置：
Smart Images
Figure CN224783956U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of COD waste liquid treatment technology, specifically a COD waste liquid stratified filtration and recovery device. Background Technology
[0002] Industrial production and various water quality monitoring activities generate a large amount of waste liquid containing high concentrations of COD. If COD waste liquid is discharged directly without proper treatment, it will lead to eutrophication of water bodies, seriously disrupt the balance of aquatic ecosystems, and cause great harm to the environment. Therefore, COD waste liquid needs to be treated.
[0003] Existing equipment has a single treatment process for COD waste liquid, which makes it difficult to filter the chemical substances in the waste liquid in multiple stages. As a result, it is impossible to filter various dissolved pollutants in layers, and the treated waste liquid may still contain a lot of solid impurities, which cannot meet the filtration requirements of COD waste liquid. Utility Model Content
[0004] The purpose of this invention is to provide a COD waste liquid stratified filtration and recovery device. This device has a multi-layer filtration structure inside the shell to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a COD waste liquid stratified filtration and recovery device, including a shell, the shell being a hollow cylindrical structure with an open upper surface, a shell cover being provided on the upper surface of the shell, the shell cover being connected to the shell by bolts, and a pre-reaction structure being provided on the surface of the shell cover, the pre-reaction structure realizing the preliminary reaction of COD waste liquid through a stirring drum.
[0006] Preferably, the pre-reaction structure includes a stirring cylinder, which is a hollow cylindrical structure. The stirring cylinder is fixedly attached to the upper surface of the shell cover. A feed pipe is provided through the upper surface of the stirring cylinder. A first separation pipe is provided through the side surface of the stirring cylinder. A first motor is fixedly installed on the upper surface of the stirring cylinder. A stirring rod is fixedly installed through the upper surface of the first motor. An upper connecting pipe is provided through the lower surface of the stirring cylinder. The upper connecting pipe is inserted into the interior of the shell. A valve is provided inside the upper connecting pipe.
[0007] Using the above technical solution, COD waste liquid can be preliminarily treated through the pre-reaction structure.
[0008] Preferably, the inner wall of the housing is bolted with a grid, the grid is a circular structure, the grid is an inverted hollow frustum structure, and the grid is aligned with the end of the upper connecting pipe.
[0009] Using the above technical solution, impurities in the reaction solution can be initially separated by a grid.
[0010] Preferably, a filter plate is provided below the grid. The filter plate is an inverted hollow frustum structure. The filter plate is threaded onto the inner wall of the housing. The filter holes of the filter plate are located on the inclined surface of the frustum structure. A lower connecting pipe is provided through the bottom surface of the filter plate of the frustum structure. A valve is provided inside the lower connecting pipe. An upper partition is provided below the filter plate. The upper partition is arranged in opposite directions to the filter plate. The upper surface of the filter plate is penetrated by the lower connecting pipe. The outer surface of the upper partition is fixedly connected to the inner wall of the housing. A second separation pipe is provided through the surface of the housing. A valve is provided inside the second separation pipe. The second separation pipe is located above the upper partition.
[0011] Using the above technical solution, the reaction solution can be further filtered through the filter plate.
[0012] Preferably, a lower partition is provided below the upper partition, the lower partition has a frustum structure, the outer surface of the lower partition is fixedly installed on the inner wall of the shell, and a centrifugal separation structure is provided between the lower partition and the upper partition.
[0013] Using the above technical solution, the reaction solution can be further filtered through centrifugal separation.
[0014] Preferably, the centrifugal separation structure includes a filter cartridge with an open upper surface. The open upper surface of the filter cartridge is aligned with the lower end of the lower connecting pipe. The lower end of the filter cartridge is rotatably mounted on the upper surface of the lower partition plate. The lower surface of the filter cartridge is fixedly connected to the output end of the second motor. The second motor is fixedly mounted on the lower surface of the housing.
[0015] By employing the above technical solution, the centrifugal force of the rotating filter cartridge can achieve thorough filtration of the reaction liquid.
[0016] Preferably, a third separation pipe is provided through the surface of the housing, and a valve is provided inside the third separation pipe. The third separation pipe is located above the lower partition.
[0017] Using the above technical solution, the filtered reaction liquid can be collected through the No. 3 separation tube.
[0018] Compared with the prior art, the beneficial effects of this utility model are: the COD waste liquid stratified filtration and recovery device: 1. In this device, a stirring drum is installed on the upper surface of the shell cover. The COD waste liquid is pretreated by the stirring drum. The stirring rod is driven by motor No. 1 to rotate inside the stirring drum, so that the COD waste liquid and the drug solution can react fully. The drug solution after reaction is stationary inside the stirring drum. The supernatant can be preliminarily recovered through the No. 1 separation tube on the side surface of the stirring drum after the reaction, separating some substances in advance and reducing the amount of subsequent filtration. 2. This device has a grid and filter plate inside the shell. The grid is aligned with the end of the upper connecting pipe to receive the waste liquid after the reaction and quickly intercept large solid particles and flocculent precipitates in the waste liquid. The filter holes distributed on the inclined surface of the filter plate can further filter the fine particulate impurities in the waste liquid. The upper baffle plate set on the lower surface of the filter plate is set in the opposite direction to guide the filtered waste liquid to the second separation pipe for further separation and collection of the waste liquid. 3. This device has a lower partition plate below the upper partition plate, and a filter cartridge is installed between the upper partition plate and the lower partition plate to further separate waste liquid impurities. The filter cartridge opening is aligned with the lower connecting pipe to receive waste liquid. The waste liquid is separated under the centrifugal force of the filter cartridge and falls onto the lower partition plate for recovery through the No. 3 separation pipe. Attached Figure Description
[0019] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of this utility model from below; Figure 3 This is a schematic diagram of the stirring cylinder structure of this utility model; Figure 4 This is a schematic diagram of the grid structure of this utility model; Figure 5 This is a schematic diagram of the filter plate structure of this utility model; Figure 6 This is a schematic diagram of the filter cartridge structure of this utility model.
[0020] In the diagram: 1. Shell; 2. Shell cover; 3. Stirring drum; 4. Feed pipe; 5. Separation pipe No. 1; 6. Motor No. 1; 7. Stirring rod; 8. Upper connecting pipe; 9. Grille; 10. Filter plate; 11. Upper partition; 12. Lower connecting pipe; 13. Separation pipe No. 2; 14. Lower partition; 15. Filter drum; 16. Motor No. 2; 17. Separation pipe No. 3. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1-6This utility model provides a technical solution: a COD waste liquid stratified filtration and recovery device, including a shell 1, a shell cover 2, a stirring cylinder 3, a feed pipe 4, a first separation pipe 5, a first motor 6, a stirring rod 7, an upper connecting pipe 8, a grid 9, a filter plate 10, an upper partition 11, a lower connecting pipe 12, a second separation pipe 13, a lower partition 14, a filter cylinder 15, a second motor 16, and a third separation pipe 17.
[0023] The shell 1 is a hollow cylindrical structure with an open upper surface. A shell cover 2 is provided on the upper surface of the shell 1. The shell cover 2 is connected to the shell 1 by bolts. A pre-reaction structure is provided on the surface of the shell cover 2. The pre-reaction structure realizes the initial reaction of COD waste liquid through the stirring drum 3. The pre-reaction structure includes the stirring drum 3, which is a hollow cylindrical structure. The stirring drum 3 is fixedly installed through the upper surface of the shell cover 2. A feed pipe 4 is provided through the upper surface of the stirring drum 3. A first separation pipe 5 is provided through the side surface of the stirring drum 3. A first motor 6 is fixedly installed on the upper surface of the stirring drum 3. A stirring rod 7 is fixedly installed through the upper surface of the stirring drum 3. An upper connecting pipe 8 is provided through the lower surface of the stirring drum 3. The upper connecting pipe 8 is inserted into the interior of the shell 1. A valve is provided inside the upper connecting pipe 8. like Figure 1 , Figure 2 and Figure 3 As shown, when using this device, the cover 2 is connected to the housing 1 with bolts. The COD waste liquid to be treated and the reaction reagent are injected into the stirring tank 3 through the feed pipe 4. The first motor 6 is started. The output end of the first motor 6 drives the stirring rod 7 to rotate in the stirring tank 3. The stirring rod 7 thoroughly stirs the waste liquid, promoting the preliminary chemical reaction of the easily reactive components in the waste liquid. After the stirring reaction is completed, the first motor 6 is turned off, and the reaction liquid is allowed to stand in the stirring tank 3. After the reaction liquid in the stirring tank 3 separates into layers, the valve of the first separation pipe 5 is opened, and the supernatant of the upper layer is discharged to the collection container through the first separation pipe 5, completing the preliminary separation of the pre-reaction stage. After the separation is completed, the valve of the first separation pipe 5 is closed.
[0024] A grid 9 is bolted to the inner wall of the housing 1. The grid 9 is a circular structure and an inverted hollow frustum structure. The grid 9 is aligned with the end of the upper connecting pipe 8. A filter plate 10 is provided below the grid 9. The filter plate 10 is an inverted hollow frustum structure. The filter plate 10 is threaded to the inner wall of the housing 1. The filter holes of the filter plate 10 are located on the inclined surface of the frustum structure. A lower connecting pipe 12 is provided through the bottom surface of the filter plate 10. A valve is provided inside the lower connecting pipe 12. An upper partition 11 is provided below the filter plate 10. The upper partition 11 is arranged in opposite directions to the filter plate 10. The upper surface of the filter plate 10 is penetrated by the lower connecting pipe 12. The outer surface of the upper partition 11 is fixedly connected to the inner wall of the housing 1. A second separation pipe 13 is provided through the surface of the housing 1. A valve is provided inside the second separation pipe 13. The second separation pipe 13 is located above the upper partition 11. like Figure 3 , Figure 4 and Figure 5 As shown, the valve of the upper connecting pipe 8 is opened, and the remaining waste liquid in the stirring drum 3 flows into the interior of the shell 1 through the upper connecting pipe 8. The waste liquid falls onto the upper surface of the grid 9, which intercepts large particles of impurities in the waste liquid. The impurities are trapped on the upper surface of the grid 9. The waste liquid after preliminary filtration flows along the grid 9 into the surface of the filter plate 10 below. Under the action of gravity, the waste liquid passes through the filter holes of the filter plate 10 and flows to the bottom of the filter plate 10, while the fine impurities are trapped on the upper surface of the filter plate 10. The waste liquid passing through the filter plate 10 falls onto the upper surface of the upper partition 11 set in the opposite direction. The inclined structure of the upper partition 11 guides the waste liquid to flow towards the inner wall of the shell 1. The valve of the second separation pipe 13 is opened to export and collect the intermediate product. After collection, the valve of the second separation pipe 13 is closed.
[0025] A lower partition 14 is provided below the upper partition 11. The lower partition 14 has a frustum structure. The outer surface of the lower partition 14 is fixedly installed on the inner wall of the housing 1. A centrifugal separation structure is provided between the lower partition 14 and the upper partition 11. The centrifugal separation structure includes a filter cartridge 15. The upper surface of the filter cartridge 15 is open. The upper surface of the open filter cartridge 15 is aligned with the lower end of the lower connecting pipe 12. The lower end of the filter cartridge 15 is rotatably installed on the upper surface of the lower partition 14. The lower surface of the filter cartridge 15 is fixedly connected to the output end of the second motor 16. The second motor 16 is fixedly installed on the lower surface of the housing 1. A third separation pipe 17 is provided through the surface of the housing 1. A valve is provided inside the third separation pipe 17. The third separation pipe 17 is located above the lower partition 14. like Figure 4 , Figure 5 and Figure 6As shown, the valve of the lower connecting pipe 12 is opened, and the waste liquid that cannot be filtered on the surface of the filter plate 10 flows into the filter cartridge 15 through the lower connecting pipe 12. The second motor 16 is started, and the output end of the second motor 16 drives the filter cartridge 15 to rotate. Centrifugal force is used to separate the components of different densities in the waste liquid in the filter cartridge 15. The components seep out through the filter holes of the filter cartridge 15 into the gap between the filter cartridge 15 and the shell 1, and finally fall onto the upper surface of the lower partition 14. The lighter substances with lower density remain inside the filter cartridge 15. After centrifugal separation, the second motor 16 is turned off, and the valve of the third separation pipe 17 is opened to export the substances on the upper surface of the lower partition 14 to a special container.
[0026] Working principle: When using this COD waste liquid stratified filtration and recovery device, COD waste liquid and reaction reagents are injected into the stirring drum 3 through the feed pipe 4. The first motor 6 is started, which drives the stirring rod 7 to stir, so that the COD waste liquid and reaction reagents react. The first motor 6 is turned off to allow the reaction liquid to stand and separate. The first separation pipe 5 is opened to export the supernatant. The valve of the upper connecting pipe 8 is opened to allow the remaining waste liquid to flow into the grid 9 inside the shell 1. The grid 9 intercepts large particles of impurities and then flows to the filter plate 10. The filter holes filter out fine impurities. The filtered liquid falls onto the upper surface of the upper partition 11 and is exported along the second separation pipe 13. The valve of the lower connecting pipe 12 is opened, and the remaining reaction liquid enters the filter drum 15. The second motor 16 is started, which drives the filter drum 15 to rotate. Centrifugal force separates components of different densities. The filtered liquid falls onto the surface of the lower partition 14. The third separation pipe 17 is opened for collection, completing the treatment and increasing the overall practicality.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A COD waste liquid stratified filtration and recovery device, comprising a shell (1), wherein the shell (1) is a hollow cylindrical structure with an open upper surface, and a shell cover (2) is provided on the upper surface of the shell (1), wherein the shell cover (2) is bolted to the shell (1), characterized in that: The surface of the shell cover (2) is provided with a pre-reaction structure. The pre-reaction structure realizes the initial reaction of COD waste liquid through the stirring drum (3). The pre-reaction structure includes the stirring drum (3), which is a hollow cylindrical structure. The stirring drum (3) is fixed to the upper surface of the shell cover (2). The upper surface of the stirring drum (3) is provided with a feed pipe (4). The side surface of the stirring drum (3) is provided with a No. 1 separation pipe (5). The upper surface of the stirring drum (3) is fixedly installed with a No. 1 motor (6). The output end of the No. 1 motor (6) is fixedly installed with a stirring rod (7) through the upper surface of the stirring drum (3). The lower surface of the stirring drum (3) is provided with an upper connecting pipe (8). The upper connecting pipe (8) is inserted into the interior of the shell (1). A valve is provided inside the upper connecting pipe (8).
2. The COD waste liquid stratified filtration and recovery device according to claim 1, characterized in that: The inner wall of the housing (1) is fitted with a grille (9) by bolts. The grille (9) is a circular structure and an inverted hollow frustum structure. The grille (9) is aligned with the end of the upper connecting pipe (8).
3. The COD waste liquid stratified filtration and recovery device according to claim 2, characterized in that: A filter plate (10) is provided below the grid (9). The filter plate (10) is an inverted hollow frustum structure. The filter plate (10) is installed on the inner wall of the housing (1) by threads. The filter holes of the filter plate (10) are located on the inclined surface of the frustum structure. A lower connecting pipe (12) is provided through the bottom surface of the filter plate (10) of the frustum structure. A valve is provided inside the lower connecting pipe (12). An upper partition (11) is provided below the filter plate (10). The upper partition (11) is arranged in opposite directions to the filter plate (10). The upper surface of the filter plate (10) is penetrated by the lower connecting pipe (12). The outer surface of the upper partition (11) is fixedly connected to the inner wall of the housing (1). A second separation pipe (13) is provided through the surface of the housing (1). A valve is provided inside the second separation pipe (13). The second separation pipe (13) is located above the upper partition (11).
4. The COD waste liquid stratified filtration and recovery device according to claim 3, characterized in that: A lower partition (14) is provided below the upper partition (11). The lower partition (14) has a frustum structure. The outer surface of the lower partition (14) is fixedly installed on the inner wall of the shell (1). A centrifugal separation structure is provided between the lower partition (14) and the upper partition (11).
5. The COD waste liquid stratified filtration and recovery device according to claim 4, characterized in that: The centrifugal separation structure includes a filter cartridge (15), the upper surface of the filter cartridge (15) is open, the upper surface of the open filter cartridge (15) is aligned with the lower end of the lower connecting pipe (12), the lower end of the filter cartridge (15) is rotatably mounted on the upper surface of the lower partition plate (14), the lower surface of the filter cartridge (15) is fixedly connected to the output end of the second motor (16), and the second motor (16) is fixedly mounted on the lower surface of the housing (1).
6. The COD waste liquid stratified filtration and recovery device according to claim 1, characterized in that: The surface of the housing (1) is provided with a third separation pipe (17), and a valve is provided inside the third separation pipe (17). The third separation pipe (17) is located above the lower partition (14).