A device for efficiently separating and recovering lye from waste lye

By using a multi-stage vibrating filter and sealing plate structure, the problems of low filtration efficiency and poor sealing of waste alkali liquid are solved, achieving efficient separation and safe alkali liquid recovery, and improving the operational reliability and maintenance convenience of the device.

CN224394676UActive Publication Date: 2026-06-23HENAN ZHONGHE ENVIRONMENTAL PROTECTION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN ZHONGHE ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-07-24
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing technologies for waste alkali solutions have low filtration efficiency, poor separation effect, easy clogging of filter screens, and poor sealing performance, resulting in waste of alkali resources and safety hazards, and failing to meet the needs of efficient recycling.

Method used

It adopts a multi-stage vibrating filter and sealing plate structure. The vibrating plate is driven by a servo motor to vibrate the filter. The spring structure reduces clogging. The sealing plate is fixed with bolts to ensure airtightness. The alkaline solution delivery volume is adjusted by a limit rod to achieve flexible control.

Benefits of technology

It significantly improves filtration efficiency and separation effect, reduces impurity clogging, extends the service life of the filter screen, ensures the airtightness of the device, avoids alkaline leakage, simplifies maintenance operations, and improves operational reliability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224394676U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of waste lye high-efficiency separation and recovery lye devices, it includes reaction tank, the inside of the reaction tank is provided with stirring shaft. Through the above structure, the waste lye high-efficiency separation and recovery lye device of the present technical solution, waste lye is transported to collection tank by water pump through first delivery pipe and second delivery pipe, in collection tank, second servo motor drives vibration plate vibration, cooperate the elastic action of first spring and second spring, can drive three filter screens sustained vibration, since the filter hole diameter of filter screen is sequentially decreased, different particle size impurities in waste lye can be realized grading filtration, greatly improve filtration efficiency and separation effect, simultaneously, vibration can also reduce the blockage of impurities on filter screen, prolong the effective use time of filter screen, sealing plate is fixed with collection tank by bolt, both ensure the sealing property of collection tank, prevent lye leakage, also convenient to disassemble to clean or replace filter screen, maintenance operation is simple and convenient.
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Description

Technical Field

[0001] This utility model relates to the field of efficient separation and recovery technology of waste alkali solution, and in particular to a device for efficient separation and recovery of waste alkali solution. Background Technology

[0002] Industrial production processes generate a large amount of waste alkali solution. If this waste alkali solution is discharged directly, it will not only cause serious environmental pollution, but also lead to the waste of alkali resources. Therefore, separating and recycling waste alkali solution to achieve its recycling has become an important issue in the field of industrial environmental protection and resource conservation.

[0003] Conventional filtration and separation methods often use a single filter screen, which is insufficient for effectively separating impurities of different particle sizes in waste alkali solutions. This results in low filtration efficiency and poor separation effect, failing to meet the requirements for high-efficiency recovery. Furthermore, impurities easily accumulate and clog the filter screen during filtration, necessitating frequent cleaning or replacement. This not only affects the continuous operation of the device but also increases maintenance costs and operational difficulty. Additionally, some devices have poor sealing performance, leading to alkali leakage during the separation and recovery process. This results in the loss of alkali resources and may cause safety hazards and environmental pollution. Therefore, to address these issues, we propose a high-efficiency waste alkali separation and recovery device. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a high-efficiency alkali separation and recovery device for waste alkali, which greatly improves filtration efficiency and separation effect. At the same time, vibration can reduce the clogging of impurities on the filter screen and extend the effective service life of the filter screen. The sealing plate is fixed to the collection box by bolts, which not only ensures the sealing of the collection box and prevents alkali leakage, but also facilitates disassembly for cleaning or replacement of the filter screen. The maintenance operation is simple and convenient. By rotating the limiting rod with the sleeve, the initial position of the sealing plate can be adjusted, thereby flexibly controlling the alkali delivery volume according to actual needs, avoiding the impact of delivery volume fluctuations on the subsequent filtration and separation effect, and further ensuring the reliability and efficiency of the entire recovery device.

[0005] This utility model also provides a device for efficient separation and recovery of waste alkali liquid, comprising a reaction tank, an internal stirring shaft, a feed pipe fixedly installed above the reaction tank, a first conveying pipe fixedly installed on one side of the reaction tank, a water pump fixedly installed at one end of the first conveying pipe, a second conveying pipe fixedly installed at one end of the water pump, a collection box fixedly installed at one end of the second conveying pipe, a first spring fixedly installed inside the collection box, three filter screens arranged above the first spring, a vibrating plate movably fitted on one side of the inside of the collection box, and a sealing plate arranged on one side of the collection box.

[0006] According to the present invention, a high-efficiency alkali separation and recovery device for waste alkali liquid is provided, wherein a first servo motor is fixedly installed above the reaction tank, and the output shaft of the first servo motor is fixedly connected to the stirring shaft.

[0007] According to the present invention, a high-efficiency alkali separation and recovery device for waste alkali liquid is provided, wherein the sealing plate is provided with multiple bolts inside, the sealing plate is fixedly connected to the collection box by the bolts, and one end of the sealing plate is in close contact with three filter screens.

[0008] According to the present invention, a high-efficiency alkali separation and recovery device for waste alkali is provided, wherein a second spring is provided above the filter screen, and filter holes are provided inside the filter screen, with the diameter of the filter holes decreasing sequentially.

[0009] According to the present invention, a high-efficiency alkali separation and recovery device for waste alkali liquid is provided, wherein a second servo motor is fixedly installed on one side of the collection box, the output shaft of the second servo motor extends into the interior of the collection box and is fixedly connected to the vibrating plate, and a discharge pipe is provided on one side of the collection box.

[0010] According to the present invention, a high-efficiency alkali separation and recovery device for waste alkali liquid is provided, wherein a baffle is fixedly installed inside the second conveying pipe, a sleeve is provided above the second conveying pipe, a limit rod is provided inside the sleeve, a sealing plate is provided below the limit rod inside the sleeve, and a third spring is provided outside the sealing plate.

[0011] According to the present invention, in a high-efficiency waste alkali separation and recovery device, one end of the third spring is fixedly connected to the inner wall of the second conveying pipe, the baffle has a through hole inside, and the outer surface of the sealing plate is in close contact with the inner wall of the through hole of the baffle.

[0012] According to the present invention, a high-efficiency alkali separation and recovery device for waste alkali liquid is provided, wherein the limiting rod has an external thread on its outside and the sleeve has an internal thread on its inside, and the limiting rod is threadedly connected to the sleeve.

[0013] Beneficial effects:

[0014] 1. The waste alkali solution high-efficiency separation and recovery device of this technical solution is as follows: the waste alkali solution is transported to the collection tank by a water pump through the first and second conveying pipes. Inside the collection tank, the second servo motor drives the vibrating plate to vibrate. With the elastic action of the first and second springs, the three filter screens can be driven to vibrate continuously. Since the filter screen pore diameter decreases sequentially, it can achieve graded filtration of impurities of different particle sizes in the waste alkali solution, which can greatly improve the filtration efficiency and separation effect. At the same time, the vibration can also reduce the clogging of impurities on the filter screen and extend the effective service life of the filter screen. The sealing plate is fixed to the collection tank with bolts, which not only ensures the sealing of the collection tank and prevents alkali solution leakage, but also facilitates disassembly for cleaning or replacement of the filter screen. The maintenance operation is simple and convenient.

[0015] 2. The automatic adjustment of the alkali solution delivery in the pipe can be achieved through the elastic force of the third spring. When the delivery pressure is too high, the alkali solution pushes the sealing plate to compress the third spring and move it upward, increasing the flow space to relieve the pressure. When the pressure decreases, the sealing plate resets under the action of the third spring, ensuring the smoothness of delivery. In addition, the initial position of the sealing plate can be adjusted by rotating the limit rod of the sleeve, so as to flexibly control the alkali solution delivery volume according to actual needs, avoiding the impact of delivery volume fluctuations on the subsequent filtration and separation effect, and further ensuring the reliability and efficiency of the entire recovery device. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a perspective view of a waste alkali solution high-efficiency separation and recovery alkali solution device according to the present invention;

[0018] Figure 2 This is a structural diagram of the stirring shaft of a waste alkali solution high-efficiency separation and recovery alkali solution device according to the present invention;

[0019] Figure 3 This is a structural diagram of the collection box of a waste alkali solution high-efficiency separation and recovery alkali solution device according to the present invention;

[0020] Figure 4 This is a structural diagram of the sealing plate of a waste alkali solution high-efficiency separation and recovery alkali solution device according to the present invention;

[0021] Figure 5 This is a structural diagram of the closed plate of a waste alkali solution high-efficiency separation and recovery alkali solution device according to the present invention.

[0022] Legend:

[0023] 1. Reaction vessel; 2. Stirring shaft; 3. Feed pipe; 4. First conveying pipe; 5. Water pump; 6. Second conveying pipe; 7. Collection box; 8. First spring; 9. Filter screen; 10. Vibrating plate; 11. Sealing plate; 12. First servo motor; 13. Second spring; 14. Second servo motor; 15. Baffle; 16. Sleeve; 17. Limiting rod; 18. Sealing plate; 19. Third spring. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] Reference Figure 1-5 This utility model discloses a high-efficiency alkali separation and recovery device for waste alkali solution, comprising a reaction tank 1. The reaction tank 1 allows for better mixing of waste alkali solution and precipitant before separation. A stirring shaft 2 is installed inside the reaction tank 1 to further mix the waste alkali solution and precipitant. A feed pipe 3 is fixedly installed at the top of the reaction tank 1, through which waste alkali solution and precipitant are fed into the reaction tank 1. A first conveying pipe 4 is fixedly installed on one side of the reaction tank 1, facilitating the flow of alkali solution into a water pump 5. A water pump 5 is fixedly installed at one end of the first conveying pipe 4, allowing the water pump 5 to extract the alkali solution from the reaction tank 1. A second conveying pipe 6 is fixedly installed, through which the alkaline solution can be sent into the interior of the collection box 7. The collection box 7 is fixedly installed at one end of the second conveying pipe 6, through which the alkaline solution can be collected. A first spring 8 is fixedly installed inside the collection box 7. The elastic effect of the first spring 8 causes the filter screen 9 to vibrate. Three filter screens 9 are set above the first spring 8. The three filter screens 9 can better separate the alkaline solution. A vibrating plate 10 is movably fitted on one side of the interior of the collection box 7. The vibrating plate 10 can make the filter screen 9 vibrate by rotating and contacting it. A sealing plate 11 is set on one side of the collection box 7. The sealing plate 11 can make it easier to clean the filter screen 9.

[0026] Specifically, a first servo motor 12 is fixedly installed on the top of the reaction vessel 1. The output shaft of the first servo motor 12 is fixedly connected to the stirring shaft 2. The first servo motor 12 can drive the stirring shaft 2 to rotate.

[0027] Specifically, the sealing plate 11 has multiple bolts inside, and the sealing plate 11 is fixedly connected to the collection box 7 by the bolts. One end of the sealing plate 11 is in close contact with three filter screens 9. The sealing plate 11 is fixedly connected to the collection box 7 by the bolts, and the bolts also facilitate the disassembly of the sealing plate 11.

[0028] Specifically, a second spring 13 is provided above the filter screen 9. The elastic effect of the second spring 13 causes the filter screen 9 to vibrate. The filter screen 9 has filter holes inside, and the diameter of the filter holes inside the filter screen 9 decreases sequentially. The alkaline solution can be separated in layers by the sequentially decreasing diameter of the filter holes in the filter screen 9.

[0029] Specifically, a second servo motor 14 is fixedly installed on one side of the collection box 7. The output shaft of the second servo motor 14 extends into the interior of the collection box 7 and is fixedly connected to the vibrating plate 10. A discharge pipe is provided on one side of the collection box 7. The second servo motor 14 can drive the vibrating plate 10 to rotate.

[0030] Specifically, a baffle 15 is fixedly installed inside the second conveying pipe 6 to block the flow of alkali solution. A sleeve 16 is provided above the second conveying pipe 6 to facilitate the adjustment of the position of the limiting rod 17. The limiting rod 17 is provided inside the sleeve 16 to facilitate the adjustment of the position of the sealing plate 18. The sealing plate 18 is provided below the limiting rod 17 inside the sleeve 16 to block the flow of alkali solution. A third spring 19 is provided outside the sealing plate 18 to allow the sealing plate 18 to reset due to the elasticity of the third spring 19.

[0031] Specifically, one end of the third spring 19 is fixedly connected to the inner wall of the second conveying pipe 6, and the baffle 15 has a through hole inside. The outer surface of the sealing plate 18 is in close contact with the inner wall of the through hole of the baffle 15. When the sealing plate 18 contacts the inner wall of the through hole of the baffle 15, it can block the flow of alkaline solution.

[0032] Specifically, the limiting rod 17 has an external thread on its outside and the sleeve 16 has an internal thread on its inside. The limiting rod 17 is threadedly connected to the sleeve 16. The threaded connection between the limiting rod 17 and the sleeve 16 allows for better adjustment of the limiting rod 17.

[0033] Working principle: Waste alkali solution and precipitant enter the reaction tank 1 through the feed pipe 3. The first servo motor 12 is started, and its output shaft drives the stirring shaft 2 to rotate, stirring the waste alkali solution and precipitant in the reaction tank 1, making the waste alkali solution and precipitant mix more evenly and react fully, preparing for subsequent separation and recovery. The stirred waste alkali solution is transported to the collection tank 7 through the first conveying pipe 4 and the second conveying pipe 6 by the water pump 5. In the second conveying pipe 6, the initial position of the sealing plate 18 can be adjusted by rotating the limit rod 17 through the sleeve 16, thereby controlling the alkali solution conveying volume. When the conveying pressure is too high, the alkali solution pushes the sealing plate 18 to compress the third spring 19 and move it upward, increasing the flow space and relieving the pressure. When the pressure decreases, the sealing plate... 18 is reset under the action of the third spring 19 to ensure smooth conveying. The waste alkali liquid entering the collection box 7 falls onto the filter screen 9. The second servo motor 14 is started, and its output shaft drives the vibrating plate 10 to vibrate. With the elastic action of the first spring 8 and the second spring 13, the three filter screens 9 vibrate continuously. Since the filter hole diameter of the filter screen 9 decreases in sequence, it realizes the graded filtration of impurities of different particle sizes in the waste alkali liquid. Vibration also reduces impurities clogging the filter screen 9. The sealing plate 11 is fixed to the collection box 7 by bolts to ensure the sealing of the collection box 7 and prevent alkali liquid leakage. When it is necessary to clean or replace the filter screen 9, the bolts can be removed and the sealing plate 11 can be removed. At the same time, the separated alkali liquid can be discharged through the discharge pipe on one side of the collection box 7.

[0034] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A device for efficient separation and recovery of waste alkali solution, comprising a reaction tank (1), characterized in that: The reaction vessel (1) is equipped with a stirring shaft (2) inside. A feed pipe (3) is fixedly installed on the top of the reaction vessel (1). A first conveying pipe (4) is fixedly installed on one side of the reaction vessel (1). A water pump (5) is fixedly installed at one end of the first conveying pipe (4). A second conveying pipe (6) is fixedly installed at one end of the water pump (5). A collection box (7) is fixedly installed at one end of the second conveying pipe (6). A first spring (8) is fixedly installed inside the collection box (7). Three filter screens (9) are provided above the first spring (8). A vibrating plate (10) is movably fitted on one side of the inside of the collection box (7). A sealing plate (11) is provided on one side of the collection box (7).

2. The device for efficient separation and recovery of waste alkali solution according to claim 1, characterized in that, A first servo motor (12) is fixedly installed above the reaction vessel (1), and the output shaft of the first servo motor (12) is fixedly connected to the stirring shaft (2).

3. The device for efficient separation and recovery of waste alkali solution according to claim 1, characterized in that, The sealing plate (11) has multiple bolts inside, and the sealing plate (11) is fixedly connected to the collection box (7) by the bolts. One end of the sealing plate (11) is in close contact with three filter screens (9).

4. The device for efficient separation and recovery of waste alkali solution according to claim 1, characterized in that, A second spring (13) is provided above the filter screen (9). The filter screen (9) has filter holes inside, and the diameter of the filter holes inside the filter screen (9) decreases sequentially.

5. The device for efficient separation and recovery of waste alkali solution according to claim 1, characterized in that, A second servo motor (14) is fixedly installed on one side of the collection box (7). The output shaft of the second servo motor (14) extends into the interior of the collection box (7) and is fixedly connected to the vibration plate (10). A discharge pipe is provided on one side of the collection box (7).

6. The device for efficient separation and recovery of waste alkali solution according to claim 1, characterized in that, A baffle (15) is fixedly installed inside the second conveying pipe (6). A sleeve (16) is provided above the second conveying pipe (6). A limit rod (17) is provided inside the sleeve (16). A sealing plate (18) is provided below the limit rod (17) inside the sleeve (16). A third spring (19) is provided outside the sealing plate (18).

7. The efficient alkaline solution separation and recovery device according to claim 6, characterized in that, One end of the third spring (19) is fixedly connected to the inner wall of the second conveying pipe (6), and the baffle (15) has a through hole inside. The outer surface of the sealing plate (18) is in close contact with the inner wall of the through hole of the baffle (15).

8. The efficient alkaline solution separation and recovery device according to claim 6, characterized in that, The limiting rod (17) has an external thread on its outside and the sleeve (16) has an internal thread on its inside. The limiting rod (17) and the sleeve (16) are threaded together.