Desulfurized gypsum dehydration filtrate recovery tank

Abstract

The utility model relates to the technical field of filtrate recovery tanks, in particular to a desulfurization gypsum dehydration filtrate recovery tank. The device has the advantages that the rotating shaft is driven by the driving motor to rotate, the arc scraping plate and the side scraping plate can be driven to rotate around the circle center of the rotating shaft, and meanwhile the propeller wheel is driven to rotate synchronously, so that the arc scraping plate and the side scraping plate stir desulfurized gypsum dehydration filtrate received in the whole tank body, and the desulfurized gypsum dehydration filtrate is kept mixed; meanwhile, the rotating propeller wheel can drive the desulfurized gypsum dehydration filtrate in the tank body to continuously upwards convey the desulfurized gypsum dehydration filtrate, so that the water flow rolls upwards, the precipitation accumulation of suspended solids is greatly reduced, and the distribution uniformity is improved; and the arc scraping plates and the side scraping plates can be driven to rotate around the circle center of the rotating shaft, the inner wall of the tank body can be continuously scraped and cleaned, impurity particles are prevented from being attached to the inner wall, and the inner wall of the tank body is kept clean.

Description

Technical Field

[0001] This utility model relates to the field of filtrate recovery tank technology, and in particular to a desulfurized gypsum dewatering filtrate recovery tank. Background Technology

[0002] With increasingly stringent environmental protection requirements, limestone-gypsum wet desulfurization technology is widely used in industrial sectors such as coal-fired power plants to treat sulfur dioxide in flue gas and reduce air pollution. This technology generates a large amount of desulfurization gypsum during the desulfurization process, and dehydration of this gypsum is a crucial step in realizing its resource utilization. During the dehydration of desulfurization gypsum, filtrate containing various impurities and chemical substances is produced. Direct discharge of this filtrate not only wastes water resources but also causes secondary pollution to the environment. Therefore, recycling the dehydrated filtrate from desulfurization gypsum to achieve water resource recycling and the recovery of some chemical substances is of great significance for the sustainable development of industrial production and environmental protection.

[0003] Currently, existing desulfurized gypsum dewatering filtrate recovery tanks have many problems in practical applications. For example, most of the current recovery tanks are static storage tanks, which makes it easy for suspended solids in the dewatering filtrate to settle to the bottom, causing blockage of the drain pipe and affecting the uniformity of the distribution of the dewatering filtrate, thus affecting subsequent treatment. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a desulfurized gypsum dewatering filtrate recovery tank, which effectively solves the deficiencies of the prior art.

[0005] To achieve the above objectives, one embodiment of this utility model provides a desulfurized gypsum dewatering filtrate recovery tank, comprising a tank body, an inlet pipe fixedly connected to the center of the top of the tank body, a drain valve fixedly connected to one side of the bottom of the tank body, a drive motor fixedly connected to the center of the bottom surface of the tank body, the output end of the drive motor penetrating into the center of the bottom surface of the inner wall of the tank body, a rotating shaft fixedly connected to the output end of the drive motor, a plurality of arc-shaped scrapers fixedly connected to the bottom of the outer wall of the rotating shaft, the plurality of arc-shaped scrapers being arranged in a radial annular array around the rotating shaft, side scrapers fixedly connected to the top of each of the plurality of arc-shaped scrapers, a propeller wheel fixedly connected to the top of the rotating shaft, the blades of the propeller wheel being fixedly connected to the bottom of the plurality of side scrapers respectively, a connecting bearing fixedly connected to the center of the top of the inner wall of the tank body, a rotating ring fixedly connected to the bottom of the connecting bearing, the top of each of the plurality of side scrapers being fixedly connected to the rotating ring, and the plurality of side scrapers being rotatably connected to the top of the inner wall of the tank body through the rotating ring and the connecting bearing.

[0006] Preferably, in any of the above embodiments, a plurality of support legs are fixedly connected to the bottom of the outer wall of the tank, and the plurality of support legs are arranged in a radial ring array around the center of the tank, and the bottom of the plurality of support legs is lower than the bottom outlet of the drain valve.

[0007] The technical effect achieved by adopting the above solution is that the bottom of the drain valve can be raised by using this solution, so that the bottom has a receiving space.

[0008] Preferably, in any of the above embodiments, the diameter of the inner wall of the connecting bearing is larger than the diameter of the water inlet pipe, the connecting bearing and the water inlet pipe are concentrically arranged, and the diameter of the inner wall of the rotating ring is adapted to the diameter of the inner wall of the connecting bearing.

[0009] The technical effect achieved by adopting the above solution is that when the inlet pipe is used to input the dewatering filtrate, it can pass through the center of the connecting bearing and the rotating ring, thus preventing any impact on the injection of the dewatering filtrate.

[0010] Preferably, in any of the above embodiments, the propeller wheel and the side scraper are fully in contact with the bottom, side and top surfaces of the inner wall of the tank, and the contact surfaces of the propeller wheel and the side scraper with the inner wall of the tank are made of rubber.

[0011] The technical effect achieved by adopting the above solution is that the inner wall of the tank can be continuously scraped and cleaned to prevent impurities from adhering to the inner wall, keep the inner wall of the tank clean, and the rubber material can reduce the wear of scraping.

[0012] Preferably, in any of the above schemes, the propeller wheel outputs upwards, and the drain valve is tilted to one side.

[0013] The technical effects achieved by adopting the above scheme are: by using this scheme, the drainage efficiency of the drain valve can be improved, and the propeller wheel can drive the desulfurized gypsum dewatering filtrate inside the tank to be continuously transported upward, so that the water flow rolls upward, thereby greatly reducing the sedimentation and accumulation of suspended solids.

[0014] This utility model has the following advantages:

[0015] 1. The desulfurized gypsum dewatering filtrate recovery tank is driven by a motor to rotate a shaft, which in turn drives the arc scraper and side scraper to rotate around the center of the shaft. Simultaneously, the propeller wheel rotates synchronously, causing the arc scraper and side scraper to agitate the desulfurized gypsum dewatering filtrate received inside the tank, keeping it mixed. At the same time, the rotating propeller wheel can continuously transport the desulfurized gypsum dewatering filtrate inside the tank upwards, causing the water to tumble upwards, thereby greatly reducing the accumulation of suspended solids and improving the uniformity of distribution.

[0016] 2. The desulfurized gypsum dewatering filtrate recovery tank is driven by a motor to rotate the shaft, which in turn drives the arc scraper and the side scraper to rotate around the center of the shaft. This continuously scrapes and cleans the inner wall of the tank, preventing impurities from adhering to the inner wall and keeping the inner wall of the tank clean. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a top view of the structure of this utility model;

[0019] Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA.

[0020] In the diagram: 1-tank body, 2-support leg, 3-drain valve, 4-water inlet pipe, 5-rotating shaft, 6-propeller wheel, 7-drive motor, 8-arc scraper, 9-side scraper, 10-connecting bearing, 11-rotating ring. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0022] like Figures 1 to 3 As shown, a desulfurized gypsum dewatering filtrate recovery tank includes a tank body 1. A water inlet pipe 4 is fixedly connected to the center of the top of the tank body 1. A drain valve 3 is fixedly connected to one side of the bottom of the tank body 1. A drive motor 7 is fixedly connected to the center of the bottom surface of the tank body 1. The output end of the drive motor 7 penetrates into the center of the bottom surface of the inner wall of the tank body 1. A rotating shaft 5 is fixedly connected to the output end of the drive motor 7. Several arc-shaped scrapers 8 are fixedly connected to the bottom of the outer wall of the rotating shaft 5. The arc-shaped scrapers 8 are arranged in a radial ring array around the rotating shaft 5. The top of each arc scraper 8 is fixedly connected to a side scraper 9. The top of the rotating shaft 5 is fixedly connected to a propeller wheel 6. The blades of the propeller wheel 6 away from the rotating shaft 5 are respectively fixedly connected to the bottom of several side scrapers 9. A connecting bearing 10 is fixedly connected to the center of the top of the inner wall of the tank 1. A rotating ring 11 is fixedly connected to the bottom of the connecting bearing 10. The top of several side scrapers 9 is fixedly connected to the rotating ring 11. Several side scrapers 9 are rotatably connected to the top of the inner wall of the tank 1 through the rotating ring 11 and the connecting bearing 10.

[0023] As an optional technical solution of this utility model, a number of support legs 2 are fixedly connected to the bottom of the outer wall of the tank body 1. The number of support legs 2 are arranged in a radial ring array around the center of the tank body 1. The bottom of the number of support legs 2 is lower than the bottom outlet of the drain valve 3, so that the bottom of the drain valve 3 is raised, so that the bottom has a receiving space.

[0024] As an optional technical solution of this utility model, the diameter of the inner wall of the connecting bearing 10 is larger than the diameter of the water inlet pipe 4. The connecting bearing 10 and the water inlet pipe 4 are concentrically arranged. The diameter of the inner wall of the rotating ring 11 is adapted to the diameter of the inner wall of the connecting bearing 10, so that when the water inlet pipe 4 is fed with dewatering filtrate, it can pass through the center of the connecting bearing 10 and the rotating ring 11, preventing the injection of dewatering filtrate from being affected.

[0025] As an optional technical solution of this utility model, the propeller wheel 6 and the side scraper 9 are fully in contact with the bottom, side and top surfaces of the inner wall of the tank 1. The contact surfaces of the propeller wheel 6 and the side scraper 9 with the inner wall of the tank 1 are made of rubber. The arc scraper 8 and the side scraper 9 rotate around the center of the rotating shaft 5, which can continuously scrape and clean the inner wall of the tank 1 to prevent impurities from adhering to the inner wall and keep the inner wall of the tank clean. The rubber material can reduce the wear of scraping.

[0026] As an optional technical solution of this utility model, the output direction of the propeller wheel 6 is upward, and the drain valve 3 is tilted to one side, thereby improving the drainage efficiency of the drain valve 3. Moreover, the propeller wheel 6 can drive the desulfurized gypsum dewatering filtrate inside the tank 1 to be continuously transported upward, causing the water to tumble upward, thereby greatly reducing the sedimentation and accumulation of suspended solids.

[0027] The following steps are required when using this desulfurized gypsum dewatering filtrate recovery tank:

[0028] 1) By driving the rotating shaft 5 to rotate through the drive motor 7, the arc scraper 8 and the side scraper 9 can rotate around the center of the rotating shaft 5, and at the same time drive the propeller wheel 6 to rotate synchronously.

[0029] 2) The arc scraper 8 and the side scraper 9 agitate the desulfurized gypsum dewatering filtrate received inside the entire tank 1, keeping it mixed.

[0030] 3) The rotating propeller wheel 6 can drive the desulfurized gypsum dewatering filtrate inside the tank 1 to be continuously transported upward, causing the water to tumble upward, thereby greatly reducing the sedimentation and accumulation of suspended solids.

[0031] 4) By driving the rotating shaft 5 to rotate through the drive motor 7, the arc scraper 8 and the side scraper 9 can rotate around the center of the rotating shaft 5, which can continuously scrape and clean the inner wall of the tank 1 to prevent impurities from adhering to the inner wall.

[0032] In summary, by driving the rotating shaft 5 with the drive motor 7, the arc scraper 8 and the side scraper 9 can rotate around the center of the rotating shaft 5, and simultaneously drive the propeller wheel 6 to rotate synchronously. This causes the arc scraper 8 and the side scraper 9 to agitate the desulfurized gypsum dewatering filtrate received inside the entire tank 1, keeping it mixed. At the same time, the rotating propeller wheel 6 can continuously transport the desulfurized gypsum dewatering filtrate inside the tank 1 upwards, causing the water to tumble upwards, thereby greatly reducing the accumulation of suspended solids and improving the uniformity of distribution. By driving the rotating shaft 5 with the drive motor 7, the arc scraper 8 and the side scraper 9 can rotate around the center of the rotating shaft 5, continuously scraping and cleaning the inner wall of the tank 1 to prevent impurities from adhering to the inner wall and keep the inner wall of the tank clean.

[0033] 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 desulfurized gypsum dewatering filtrate recovery tank characterized by: The system includes a tank (1), with a water inlet pipe (4) fixedly connected to the center of the top of the tank (1), a drain valve (3) fixedly connected to one side of the bottom of the tank (1), a drive motor (7) fixedly connected to the center of the bottom surface of the tank (1), the output end of the drive motor (7) penetrating into the center of the bottom surface of the inner wall of the tank (1), a rotating shaft (5) fixedly connected to the output end of the drive motor (7), and several arc scrapers (8) fixedly connected to the bottom of the outer wall of the rotating shaft (5). The several arc scrapers (8) are arranged in a radial ring array around the rotating shaft (5), and the top of the several arc scrapers (8) All are fixedly connected with side scrapers (9), and the top of the rotating shaft (5) is fixedly connected with a propeller wheel (6). The blades of the propeller wheel (6) away from the rotating shaft (5) are respectively fixedly connected to the bottom of several side scrapers (9). A connecting bearing (10) is fixedly connected at the center of the top of the inner wall of the tank (1). A rotating ring (11) is fixedly connected to the bottom of the connecting bearing (10). The tops of several side scrapers (9) are fixedly connected to the rotating ring (11). Several side scrapers (9) are rotatably connected to the top of the inner wall of the tank (1) through the rotating ring (11) and the connecting bearing (10).

2. The desulfurization gypsum dewatering filtrate recovery tank according to claim 1, characterized by: The bottom of the outer wall of the tank (1) is fixedly connected to several support legs (2). The support legs (2) are arranged in a radial ring array around the center of the tank (1). The bottom of the support legs (2) is lower than the bottom outlet of the drain valve (3).

3. The desulfurization gypsum dewatering filtrate recovery tank according to claim 2, characterized by: The diameter of the inner wall of the connecting bearing (10) is larger than the diameter of the water inlet pipe (4). The connecting bearing (10) and the water inlet pipe (4) are concentrically arranged. The diameter of the inner wall of the rotating ring (11) is adapted to the diameter of the inner wall of the connecting bearing (10).

4. The desulfurization gypsum dewatering filtrate recovery tank according to claim 3, characterized by: The propeller wheel (6) and the side scraper (9) are fully in contact with the bottom, side and top surfaces of the inner wall of the tank (1), and the contact surfaces of the propeller wheel (6) and the side scraper (9) with the inner wall of the tank (1) are made of rubber.

5. The desulfurization gypsum dewatering filtrate recovery tank according to claim 4, characterized by: The propeller wheel (6) outputs upward, and the drain valve (3) is tilted to one side.

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