Desulfurization waste liquid recycling device

Abstract

The utility model relates to desulfurization technical field especially, relates to a kind of desulfurization waste liquid recycling device.The technical scheme of it includes: desulfurization tower, filter module, first water pump and second water pump.Desulfurization tower side erects filter module, two water pumps are communicated, the connecting pipe of first water pump is supported above filter module, second water pump is communicated with filter module bottom end.Filter module side has hopper, and elastic support is equipped on it, first cylinder output end is installed baffle on support, for blocking desulfurizer.Filter module has fixed support, and second cylinder output end is installed inclined filter plate on it, filter plate has filter screen, and lowest end is equipped with collecting groove, and first water pump connecting pipe one end is in collecting groove.The utility model can efficiently recycle and handle desulfurization waste liquid.Inclined filter plate improves filtering effect, cylinder controls baffle and filter plate, realizes automatic operation, reduces artificial cost, improves desulfurization waste liquid recycling efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the field of desulfurization technology, specifically to a device for recycling desulfurization waste liquid. Background Technology

[0002] In flue gas desulfurization processes in industries such as chemical, metallurgical, and power, the efficient recycling of desulfurization wastewater is a key step in achieving green production. Desulfurization wastewater typically contains a high concentration of suspended particles. These particles are mostly unreacted desulfurizing agent residues, dust carried by the flue gas, and sulfate crystals generated during the reaction. The particle diameter is usually between a few micrometers and tens of micrometers. Direct discharge without proper treatment will not only waste both water resources and desulfurizing agents but also cause secondary pollution, severely hindering the green transformation process of enterprises.

[0003] Existing devices mostly employ fixed filter plates or static filter screen structures. During the filtration process, tiny particles in the desulfurization wastewater quickly deposit on the filter screen surface, forming a dense "filter cake layer." This filter cake layer has a multi-dimensional negative impact on the filtration system: In terms of filtration efficiency, it directly covers the effective filtration pores of the filter screen, resulting in a significant reduction in the actual area involved in filtration. The originally designed filtration channels are blocked, weakening the filtration capacity from the source. From the perspective of fluid resistance, the dense filter cake layer is like adding an extra "barrier" to the filter screen surface. The resistance that fluid needs to overcome to penetrate the filter screen increases significantly, forcing the system to consume more power to maintain fluid circulation, which increases energy costs and increases the operating load of the equipment. More importantly, as the thickness of the filter cake layer continues to increase, the filtration flow rate exhibits a significant exponential decline. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a desulfurization wastewater recycling device, which solves the problems mentioned in the background technology.

[0005] The solution to the above-mentioned technical problems provided by this utility model is as follows:

[0006] A desulfurization wastewater recycling device includes:

[0007] Desulfurization tower, filter module, first water pump and second water pump;

[0008] The filter module is installed on one side of the desulfurization tower;

[0009] The first water pump and the second water pump are connected between the desulfurization tower and the filter module;

[0010] The first water pump is equipped with a connecting pipe, which is mounted above the filter module;

[0011] The second water pump is connected to the bottom of the filter module;

[0012] A hopper is provided on one side of the filter module;

[0013] The filter module is equipped with an elastic support, and a first cylinder is installed on the elastic support. A baffle for blocking the desulfurizing agent is installed at the output end of the first cylinder. The baffle is located between the filter module and the hopper.

[0014] The filter module is provided with a fixed bracket, a second cylinder is installed on the fixed bracket, a filter plate is installed at the output end of the second cylinder, and filter screens are evenly distributed on the filter plate.

[0015] The filter plate is inclined and has a collection groove at its lowest end, with one end of the connecting pipe located in the collection groove.

[0016] Based on the above technical solution, the present invention can be further improved as follows.

[0017] Furthermore, a valve is installed between the desulfurization tower and the second water pump.

[0018] The beneficial effects of adopting the above-mentioned further solutions are:

[0019] By installing a valve between the desulfurization tower and the second water pump, the flow rate of the desulfurization waste liquid can be precisely and flexibly controlled. During actual operation, the valve opening can be adjusted in a timely manner according to the specific requirements of the desulfurization process and the actual condition of the waste liquid within the desulfurization tower, thereby achieving precise regulation of the waste liquid delivery volume. Simultaneously, this valve can also be used to control the start and stop of waste liquid delivery. When the unit needs maintenance or repair, or in case of abnormalities, the valve can be quickly closed to cut off the waste liquid delivery channel, ensuring the safe operation of the unit and avoiding various problems that may be caused by uncontrolled waste liquid flow. This improves the stability and controllability of the entire desulfurization waste liquid recycling unit.

[0020] Furthermore, the filter plate can be moved up and down relative to the filter module by being driven by a second cylinder.

[0021] The beneficial effects of adopting the above-mentioned further solutions are:

[0022] The filter plates can move up and down relative to the filter module under the drive of the second cylinder. This design greatly enhances the adaptability and filtration effect of the filter module. During the filtration process, as the amount of impurities such as desulfurizing agents intercepted on the filter plates gradually increases, the filtration performance of the filter plates will be affected. At this time, by driving the filter plates to vibrate or adjust their position through the second cylinder, the contact area between the filter screen and the waste liquid can be dynamically optimized, so that the waste liquid forms a more uniform flow distribution within the filter module, avoiding excessive local filtration burden, thereby improving the overall filtration efficiency. Moreover, the up-and-down movement of the filter plates can also generate a certain agitation effect on the waste liquid, which helps to prevent impurities from accumulating on the filter plate surface and forming blockages, extending the service life of the filter plates, reducing the frequency of cleaning and replacing the filter plates, and reducing operating costs.

[0023] Furthermore, the baffle can be raised and lowered relative to the hopper by being driven by the first cylinder.

[0024] The beneficial effects of adopting the above-mentioned further solutions are:

[0025] The baffle is driven by a first cylinder to move up and down relative to the hopper, providing a convenient and efficient way to clean impurities from the filter plate. During normal filtration, the baffle is in the blocking position, ensuring the filtration process continues stably. When a certain amount of impurities accumulates in the filter module and needs to be cleaned, simply activate the first cylinder to raise the baffle, creating an open channel between the baffle and the hopper inlet. The impurities in the filter module can then slide smoothly into the hopper under their own gravity and be discharged centrally. This design makes the impurity cleaning process more automated and controllable, reducing the tediousness and difficulty of manual operation, improving cleaning efficiency, and also avoiding the adverse effects that prolonged accumulation of impurities in the filter module might have on the filtration effect and the operation of the device.

[0026] Furthermore, the elastic support is elastically mounted on the filter module by a spring.

[0027] The beneficial effects of adopting the above-mentioned further solutions are:

[0028] The spring structure of the flexible support provides cushioning and shock absorption for the filter module. When the second water pump starts or the filter plate moves, the system may generate vibration or impact forces. The spring absorbs some of the energy through elastic deformation, reducing the damage to the filter module, cylinder, and other components caused by vibration, and extending the service life of the equipment. In addition, the flexible support can also adapt to the slight displacement of the filter plate under different operating conditions, ensuring the sealing between the filter plate and the filter module and preventing waste liquid leakage.

[0029] Furthermore, the inlet end of the second water pump is connected to the bottom of the desulfurization tower, and the outlet end of the second water pump is connected to the bottom end of the filter module.

[0030] The beneficial effects of adopting the above-mentioned further solutions are:

[0031] By clearly defining the connection path of the second water pump, the rationality of waste liquid flow was optimized. Connecting the inlet end to the bottom of the desulfurization tower fully utilizes the gravitational potential energy of the waste liquid, reducing water pump energy consumption; while the outlet end passes directly through the bottom of the filter module, ensuring that the waste liquid flows from bottom to top, allowing impurities to be fully intercepted by the filter screen during the ascent. Simultaneously, the inclined filter plate design further promotes the sliding of impurities into the collection tank. This flow channel design improves filtration efficiency, avoids short-circuit flow or dead zones, and ensures full coverage of waste liquid treatment.

[0032] This invention provides a device for recycling desulfurization wastewater. It has the following beneficial effects:

[0033] The second water pump extracts the desulfurization waste liquid from the bottom of the desulfurization tower and transports it to the filtration module for filtration. After filtration, the first water pump returns any remaining liquid in the collection tank to the desulfurization tower, enabling the desulfurization waste liquid to be recycled, effectively reducing resource waste and lowering production costs.

[0034] The filter plate, driven by a second cylinder, can move up and down relative to the filter module. During filtration, this movement may help enhance the filtration effect on the waste liquid, allowing impurities such as desulfurizing agents in the waste liquid to be more fully intercepted below the filter plate, thus improving filtration quality. The filter plate is evenly equipped with filter screens, ensuring that the waste liquid passes through the screens uniformly for filtration, further improving the uniformity and effectiveness of the filtration.

[0035] The filter plates are tilted and have a collection trough at their lowest point. Impurities on the filter plates slide into the collection trough under their own weight and the tilt angle, facilitating their collection. When a certain amount of impurities accumulates in the filter module and affects the filtration effect, the first cylinder drives the baffle to rise, creating an open channel between the baffle and the hopper inlet. The accumulated desulfurizing agent impurities in the filter module then slide down under gravity and are finally discharged through the hopper. This convenient and quick cleaning of impurities on the filter plates ensures the continuous and stable operation of the device. Attached Figure Description

[0036] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0037] In the attached diagram:

[0038] Figure 1 This is a schematic diagram of the main appearance of the present utility model;

[0039] Figure 2 This is a rear view schematic diagram of the present utility model;

[0040] Figure 3 This is a schematic diagram of the main appearance of the filter module of this utility model;

[0041] Figure 4 This is a rear view schematic diagram of the filter module of this utility model.

[0042] The attached diagram lists the components represented by each number as follows:

[0043] 1. Desulfurization tower; 2. First water pump; 201. Connecting pipe; 3. Second water pump; 4. Filter module; 401. Fixed bracket; 402. Filter plate; 403. Flexible bracket; 404. Baffle; 405. Feed hopper; 406. First cylinder; 407. Collection tank; 408. Second cylinder; 409. Filter screen; 5. Valve. Detailed Implementation

[0044] 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.

[0045] Please see Figures 1 to 4 As shown, the embodiments provided by this utility model are as follows:

[0046] Example 1

[0047] A desulfurization wastewater recycling device includes:

[0048] Desulfurization tower 1, filter module 4, first water pump 2, and second water pump 3;

[0049] A filter module 4 is installed on one side of the desulfurization tower 1;

[0050] The first water pump 2 and the second water pump 3 are connected between the desulfurization tower 1 and the filter module 4;

[0051] The first water pump 2 is equipped with a connecting pipe 201, which is mounted above the filter module 4;

[0052] The second water pump 3 is connected to the bottom of the filter module 4;

[0053] A hopper 405 is provided on one side of the filter module 4;

[0054] The filter module 4 is equipped with an elastic bracket 403, and a first cylinder 406 is installed on the elastic bracket 403. A baffle 404 for blocking the desulfurizing agent is installed at the output end of the first cylinder 406. The baffle 404 is located between the filter module 4 and the hopper 405.

[0055] The filter module 4 is provided with a fixed bracket 401, a second cylinder 408 is installed on the fixed bracket 401, a filter plate 402 is installed at the output end of the second cylinder 408, and filter screens 409 are evenly provided on the filter plate 402.

[0056] The filter plate 402 is inclined, and a collection trough 407 is provided at its lowest end. One end of the connecting pipe 201 is located in the collection trough 407.

[0057] Example 2

[0058] To achieve precise control and safe protection of the transportation of desulfurization wastewater, for example, such as Figures 1 to 4 As shown, this utility model also includes:

[0059] A valve 5 is installed between the desulfurization tower 1 and the second water pump 3. This valve 5 allows for precise and flexible control of the flow rate of the desulfurization waste liquid. During actual operation, the opening of valve 5 can be adjusted in a timely manner according to the specific requirements of the desulfurization process and the actual condition of the waste liquid in the desulfurization tower 1, thereby achieving precise regulation of the waste liquid delivery volume. Simultaneously, valve 5 can also be used to control the start and stop of waste liquid delivery. When the unit needs maintenance or repair, or in case of abnormalities, valve 5 can be quickly closed to cut off the waste liquid delivery channel, ensuring the safe operation of the unit and avoiding various problems that may be caused by uncontrolled waste liquid flow. This improves the stability and controllability of the entire desulfurization waste liquid recycling unit.

[0060] Example 3

[0061] To optimize the waste liquid flow path, improve filtration efficiency, and reduce equipment wear, for example, such as Figures 1 to 4 As shown, this utility model also includes:

[0062] The inlet of the second water pump 3 is connected to the bottom of the desulfurization tower 1, and the outlet of the second water pump 3 is connected to the bottom of the filter module 4. By clearly defining the connection path of the second water pump 3, the rationality of the waste liquid flow is optimized. Connecting the inlet to the bottom of the desulfurization tower 1 can make full use of the gravitational potential energy of the waste liquid and reduce the energy consumption of the water pump; while the outlet directly passes through the bottom of the filter module 4, ensuring that the waste liquid flows from bottom to top, so that impurities are fully intercepted by the filter screen 409 during the rising process. At the same time, the design of the inclined filter plate 402 further promotes the sliding of impurities into the collection tank 407. This flow channel design improves the filtration efficiency, avoids short-circuit flow or dead zones, and ensures full coverage of waste liquid treatment.

[0063] The elastic support 403 is elastically mounted on the filter module 4 via springs. The spring structure of the elastic support 403 provides buffering and shock absorption for the filter module 4. When the second water pump 3 starts or the filter plate 402 moves, the system may generate vibration or impact forces. The spring absorbs some of the energy through elastic deformation, reducing the damage to components such as the filter module 4 and cylinders caused by vibration, and extending the service life of the equipment. In addition, the elastic support 403 can also adapt to the slight displacement of the filter plate 402 under different operating conditions, ensuring the sealing between the filter plate 402 and the filter module 4 and preventing waste liquid leakage.

[0064] The filter plate 402, driven by the second cylinder 408, can move up and down relative to the filter module 4. This ability to move the filter plate 402 up and down under the drive of the second cylinder 408 greatly enhances the adaptability and filtration effect of the filter module 4. During the filtration process, as the amount of desulfurizing agent and other impurities intercepted on the filter plate 402 gradually increases, the filtration performance of the filter plate 402 will be affected. At this time, by driving the filter plate 402 to vibrate or adjust its position through the second cylinder 408, the contact area between the filter screen 409 and the waste liquid can be dynamically optimized, so that the waste liquid forms a more uniform flow distribution within the filter module 4, avoiding excessive local filtration burden and thus improving the overall filtration efficiency. Moreover, the up-and-down movement of the filter plate 402 can generate a certain agitation effect on the waste liquid, which helps to prevent impurities from accumulating on the surface of the filter plate 402 and forming blockages, extending the service life of the filter plate 402, reducing the frequency of cleaning and replacing the filter plate 402, and reducing operating costs.

[0065] The baffle 404, driven by the first cylinder 406, can move up and down relative to the discharge hopper 405, providing a convenient and efficient way to clean impurities on the filter plate 402. During normal filtration, the baffle 404 is in the blocking position, ensuring the filtration process continues stably. When a certain amount of impurities accumulates in the filter module 4 and needs cleaning, simply activate the first cylinder 406 to raise the baffle 404, creating an open channel between the baffle 404 and the inlet of the discharge hopper 405. The impurities in the filter module 4, under their own gravity, can smoothly slide down into the discharge hopper 405 and be discharged centrally. This design makes the impurity cleaning process more automated and controllable, reducing the tediousness and difficulty of manual operation, improving cleaning efficiency, and also avoiding the adverse effects of prolonged accumulation of impurities in the filter module 4 on the filtration effect and device operation.

[0066] Working principle:

[0067] The second water pump 3 is started. Since the inlet end of the second water pump 3 is connected to the bottom of the desulfurization tower 1 and the outlet end is connected to the bottom of the filter module 4, the desulfurization waste liquid at the bottom of the desulfurization tower 1 is drawn out and transported to the bottom of the filter module 4 under the action of the second water pump 3. At the same time, a valve 5 is installed between the desulfurization tower 1 and the second water pump 3, and the flow rate and start / stop of the desulfurization waste liquid can be controlled by the valve 5.

[0068] The desulfurization wastewater entering the filter module 4 flows upward. At this time, the filter plate 402, driven by the second cylinder 408, can move up and down relative to the filter module 4. Filter screens 409 are evenly distributed on the filter plate 402. When the wastewater passes through the filter screens 409, impurities such as the desulfurizing agent are intercepted below the filter plate 402, while the filtered liquid continues to flow upward. Because the filter plate 402 is inclined and has a collection tank 407 at its lowest point, impurities on the filter plate 402 will slide into the collection tank 407 under the combined action of their own gravity and the inclination angle of the filter plate 402. Simultaneously, the first water pump 2, through its connecting pipe 201 (one end of which is located inside the collection tank 407), pumps any remaining liquid in the collection tank 407 back to the desulfurization tower 1, achieving liquid recycling and reducing resource waste.

[0069] When a certain amount of desulfurizing agent and other impurities accumulate on the filter plate 402, affecting the filtration effect, the filter plate 402 needs to be cleaned. At this time, the first cylinder 406 drives the baffle 404 to rise, forming an open channel between the baffle 404 and the inlet of the discharge hopper 405. The accumulated desulfurizing agent impurities in the filter module 4 are intercepted by the filter screen 409 and slide down under gravity, eventually being discharged through the discharge hopper 405. In this stage, the discharge hopper 405 serves as a dedicated channel for impurity collection and discharge, ensuring that impurities are directionally transferred to an external collection device, achieving solid waste disposal after solid-liquid separation.

[0070] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0071] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for recycling desulfurization wastewater, characterized in that, include: The desulfurization tower (1), the filter module (4), the first water pump (2) and the second water pump (3); the filter module (4) is mounted on one side of the desulfurization tower (1). The first water pump (2) and the second water pump (3) are connected between the desulfurization tower (1) and the filter module (4); The first water pump (2) is provided with a connecting pipe (201), which is mounted above the filter module (4); The second water pump (3) is connected to the bottom end of the filter module (4); The filter module (4) is provided with a hopper (405) on one side. The filter module (4) is provided with an elastic bracket (403), and a first cylinder (406) is installed on the elastic bracket (403). A baffle (404) for blocking the desulfurizing agent is installed at the output end of the first cylinder (406). The baffle (404) is located between the filter module (4) and the hopper (405). The filter module (4) is provided with a fixed bracket (401), a second cylinder (408) is installed on the fixed bracket (401), a filter plate (402) is installed at the output end of the second cylinder (408), and filter screens (409) are evenly provided on the filter plate (402). The filter plate (402) is inclined and has a collection groove (407) at its lowest end. One end of the connecting pipe (201) is located in the collection groove (407).

2. The desulfurization wastewater recycling device according to claim 1, characterized in that: A valve (5) is installed between the desulfurization tower (1) and the second water pump (3).

3. The desulfurization wastewater recycling device according to claim 1, characterized in that: The filter plate (402) can move up and down relative to the filter module (4) by being driven by the second cylinder (408).

4. The desulfurization wastewater recycling device according to claim 1, characterized in that: The baffle (404) is driven by the first cylinder (406) to move up and down relative to the hopper (405).

5. The desulfurization wastewater recycling device according to claim 1, characterized in that: The elastic support (403) is elastically mounted on the filter module (4) by a spring.

6. The desulfurization wastewater recycling device according to claim 1, characterized in that: The inlet end of the second water pump (3) is connected to the bottom of the desulfurization tower (1), and the outlet end of the second water pump (3) is connected to the bottom end of the filter module (4).

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