Slurry circulating pump operation filtering equipment for wet desulphurization of coal-fired unit

Abstract

The utility model discloses slurry circulating pump operation filtering equipment for coal-fired unit wet desulphurization, one end of a slurry circulating pump is fixedly connected with a connecting pipe, and one end of the connecting pipe is fixedly connected with a filtering box. By arranging the arc-shaped filter plate, solid substances in slurry are intercepted in the filter box, blockage of a conveying pipeline or damage of parts in a pump caused by residual particulate matters in the slurry is prevented, the service life of equipment is prolonged, and meanwhile, the arc-shaped filter plate is arc-shaped, so that impact force during flowing of the slurry can be effectively relieved, pressure borne by the arc-shaped filter plate is relieved, and the service life of the equipment is prolonged. The arc-shaped filter plate is prevented from being impacted by slurry to shake or be damaged after long-time operation and use, the reinforcing arc-shaped plates, the connecting vertical strips and the supporting folded plates all play a role in supporting and stabilizing the arc-shaped filter plate, and the structural strength of the arc-shaped filter plate is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of slurry filtration technology, specifically a slurry circulation pump operation filtration device for wet desulfurization of coal-fired power units. Background Technology

[0002] After coal combustion, the flue gas contains sulfur and other environmentally harmful components such as sulfur dioxide. Wet desulfurization is usually used to remove these harmful components. The wet desulfurization process is completed inside the desulfurization tower. The flue gas enters the desulfurization tower from the middle and flows upward. The desulfurization slurry is pressurized by the slurry circulation pump and sprayed down from the top. In this way, a chemical reaction takes place between the flue gas and the desulfurization slurry inside the tower, generating calcium sulfite, which falls into the slurry pool at the bottom of the tower. In the slurry pool, it is forcibly oxidized into stable calcium sulfate gypsum and discharged. The unreacted desulfurization slurry in the slurry pool is pressurized by the slurry circulation pump and sent to the top of the tower for recirculation.

[0003] However, during the current slurry circulation process, a small amount of solid particles are easily mixed in. After the solid particles are pumped away by the slurry circulation pump, they can easily cause blockage of the pipeline and damage to the components inside the pump, resulting in a reduction in the service life of the equipment. Therefore, this utility model provides a slurry circulation pump operation filtration device for wet desulfurization of coal-fired power units to meet people's needs. Utility Model Content

[0004] This utility model provides a slurry circulation pump operation and filtration device for wet desulfurization of coal-fired power units, which can effectively solve the problem mentioned in the background art that a small amount of solid particles are easily mixed in during the slurry circulation process. After the solid particles are pumped away by the slurry circulation pump, they can easily cause pipeline blockage and damage to the pump components, resulting in a reduction in the service life of the equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a slurry circulation pump operation filtration device for wet desulfurization of coal-fired power units, comprising a slurry circulation pump, a connecting pipe fixedly connected to one end of the slurry circulation pump, a filter box fixedly connected to one end of the connecting pipe, an extraction pipe fixedly connected to the middle end of the filter box away from the connecting pipe, positioning frames fixedly installed in the middle of the two inner walls of the filter box, an arc-shaped filter plate installed in the middle of the filter box, mounting strips symmetrically fixedly connected to both ends of the arc-shaped filter plate, reinforcing arc-shaped plates fixedly installed in the middle and bottom of one end of the arc-shaped filter plate, connecting vertical strips fixedly installed between the two ends of the two reinforcing arc-shaped plates, and supporting folding plates symmetrically fixedly installed at one end of the two reinforcing arc-shaped plates;

[0006] A mounting frame is fixedly installed on the top edge of the filter box. A sealing gasket is embedded in the middle of the top of the mounting frame. Lower fitting blocks are symmetrically fixedly installed on both ends of the mounting frame. A top cover is installed on the top of the filter box. Upper fitting blocks are symmetrically fixedly installed on both ends of the top cover. A locking bolt is installed in the middle of the upper fitting block. An operating handle is fixedly installed in the middle of the top cover.

[0007] Preferably, the two mounting clips are respectively movably engaged inside the two positioning frames, and the bottom end of the top cover is pressed tightly against the top end of the arc-shaped filter plate.

[0008] Preferably, the top and bottom of the connecting vertical bar are connected to the bottom and top of the two reinforcing arc plates, respectively, the bottom of the supporting folding plate is close to the bottom of the filter box, and the two ends of the supporting folding plate are connected to the two reinforcing arc plates, respectively.

[0009] Preferably, the top cover is pressed tightly against the surface of the sealing gasket, the upper and lower adhesive blocks are positioned correspondingly, and the upper and lower adhesive blocks are fixedly connected by locking bolts.

[0010] Preferably, a cleaning plate is fitted to the bottom of the filter box at one side of the arc-shaped filter plate, and connecting rods are fixedly connected to the four corners of the top of the cleaning plate.

[0011] Preferably, one end of the cleaning plate is arc-shaped and closely adheres to the surface of the bottom of the arc-shaped filter plate, and the top end of the connecting rod is connected to the bottom end of the top cover.

[0012] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use.

[0013] 1. Equipped with a filter box, arc-shaped filter plate, reinforced arc-shaped plate, connecting vertical bars, and supporting folding plates, the filter box and arc-shaped filter plate work together to filter the slurry pumped by the slurry circulation pump. This traps solid matter in the slurry inside the filter box, preventing residual particulate matter from clogging the transport pipeline or damaging pump components, thus extending the equipment's service life. The arc-shaped filter plate effectively mitigates the impact force of the slurry flow, reducing pressure and preventing it from shaking or being damaged by slurry impacts during prolonged operation. The reinforced arc-shaped plate, connecting vertical bars, and supporting folding plates all provide stable support for the arc-shaped filter plate, enhancing its structural strength.

[0014] 2. The system includes a positioning frame, mounting clips, sealing gaskets, a lower bonding block, a top cover, an upper bonding block, and locking bolts. The positioning frame and mounting clips work together to securely position the arc-shaped filter plate, greatly facilitating installation and disassembly. The upper bonding block and locking bolts work together to lock the top cover to the mounting frame. The sealing gasket seals the top of the filter box, while the top cover presses down on the arc-shaped filter plate from above, improving its stability.

[0015] 3. Equipped with a cleaning plate and connecting rod, the cleaning plate and connecting rod work together to rise together when the top cover is removed, scraping the surface of the arc-shaped filter plate and removing impurities and debris adhering to the surface of the arc-shaped filter plate. The cleaning method is simple. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the filter box of this utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the cleaning plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the arc-shaped filter plate of this utility model;

[0022] The following are the labels in the diagram: 1. Slurry circulation pump; 2. Connecting pipe; 3. Filter box; 4. Extraction pipe; 5. Positioning frame; 6. Arc-shaped filter plate; 7. Mounting clip; 8. Reinforcing arc-shaped plate; 9. Connecting vertical bar; 10. Support folding plate; 11. Mounting frame; 12. Sealing gasket; 13. Lower bonding block; 14. Top cover; 15. Upper bonding block; 16. Locking bolt; 17. Operating handle; 18. Cleaning plate; 19. Connecting rod. Detailed Implementation

[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0024] Example: Figure 1-4As shown, this utility model provides a technical solution: a slurry circulation pump operation filtration device for wet desulfurization of coal-fired power units, including a slurry circulation pump 1, a connecting pipe 2 fixedly connected to one end of the slurry circulation pump 1, a filter box 3 fixedly connected to one end of the connecting pipe 2, an extraction pipe 4 fixedly connected to the middle end of the filter box 3 away from the connecting pipe 2, positioning frames 5 fixedly installed in the middle of the two inner walls of the filter box 3, an arc-shaped filter plate 6 installed in the middle of the filter box 3, mounting clips 7 symmetrically fixedly connected to both ends of the arc-shaped filter plate 6, the two mounting clips 7 being movably engaged inside the two positioning frames 5, the bottom end of the top cover 14 tightly pressed against the top end of the arc-shaped filter plate 6, reinforcing arc-shaped plates 8 fixedly installed in the middle and bottom of one end of the arc-shaped filter plate 6, connecting vertical bars 9 fixedly installed between the two ends of the two reinforcing arc-shaped plates 8, and supporting folding plates 1 symmetrically fixedly installed at one end of the two reinforcing arc-shaped plates 8. The top and bottom of the connecting vertical bar 9 are connected to the bottom and top of the two reinforcing arc plates 8, respectively. The bottom of the supporting folding plate 10 is close to the bottom of the filter box 3. The two ends of the supporting folding plate 10 are connected to the two reinforcing arc plates 8, respectively. Through the cooperation of the filter box 3 and the arc filter plate 6, the slurry pumped by the slurry circulation pump 1 is filtered, so that the solid matter in the slurry is intercepted inside the filter box 3, preventing the residual particulate matter in the slurry from causing blockage of the transport pipeline or damage to the pump parts, thus improving the service life of the equipment. At the same time, the arc-shaped filter plate 6 can effectively reduce the impact force when the slurry flows, reduce the pressure on the arc filter plate 6, and prevent it from being shaken or damaged by the slurry during long-term operation. The reinforcing arc plate 8, the connecting vertical bar 9 and the supporting folding plate 10 all play a supporting and stabilizing role for the arc filter plate 6, enhancing its own structural strength.

[0025] A mounting frame 11 is fixedly installed on the top edge of the filter box 3. A sealing gasket 12 is embedded in the middle of the top of the mounting frame 11. Lower bonding blocks 13 are symmetrically fixedly installed on both ends of the mounting frame 11. A top cover 14 is installed on the top of the filter box 3. Upper bonding blocks 15 are symmetrically fixedly installed on both ends of the top cover 14. A locking bolt 16 is installed in the middle of the upper bonding block 15. An operating handle 17 is fixedly installed in the middle of the top cover 14. The top cover 14 is pressed tightly against the surface of the sealing gasket 12. The positions of the upper bonding block 15 and the lower bonding block 13 correspond to each other. The upper and lower mating blocks 15 and 13 are fixedly connected by locking bolts 16. The positioning frame 5 and the mounting strip 7 work together to stabilize the arc-shaped filter plate 6, which greatly facilitates the installation and disassembly of the workers. At the same time, the upper mating block 15 and the locking bolts 16 work together to lock the top cover 14 to the mounting frame 11. The sealing gasket 12 seals the top of the filter box 3, and the top cover 14 presses down on the arc-shaped filter plate 6 from above to stabilize it, which improves the stability of the arc-shaped filter plate 6.

[0026] A cleaning plate 18 is fitted to the bottom of the filter box 3 on one side of the arc-shaped filter plate 6. A connecting rod 19 is fixedly connected to the four corners of the top of the cleaning plate 18. One end of the cleaning plate 18 is arc-shaped and fits tightly against the bottom surface of the arc-shaped filter plate 6. The top of the connecting rod 19 is connected to the bottom of the top cover 14. Through the cooperation of the connecting rod 19 and the cleaning plate 18, when the top cover 14 is removed, it rises together and scrapes the surface of the arc-shaped filter plate 6, removing impurities and garbage adhering to the surface of the arc-shaped filter plate 6. The cleaning method is simple.

[0027] The working principle and usage process of this utility model are as follows: First, the operator connects the two ends of the filter box 3 to the connecting pipe 2 and the extraction pipe 4 respectively. The arc-shaped filter plate 6 is placed inside the filter box 3. The two mounting clips 7 are respectively inserted into the two positioning frames 5, which play a role in positioning and stabilizing the arc-shaped filter plate 6. At this time, the bottom end of the supporting folding plate 10 is in contact with the bottom of the filter box 3. Then, the top cover 14 is placed on the top of the filter box 3. The cleaning plate 18 and the connecting rod 19 are placed inside the filter box 3. The bottom end of the cleaning plate 18 is in contact with the bottom end of the filter box 3, and the arc-shaped end is in close contact with the bottom end surface of the arc-shaped filter plate 6. The bottom end of the top cover 14 is pressed on the top end of the arc-shaped filter plate 6. The upper bonding block 15 and the lower bonding block 13 correspond to each other and are locked and fixed by the locking bolt 16. The sealing gasket 12 seals the contact between the top cover 14 and the mounting frame 11, so that the filter box 3 remains sealed and the slurry will not leak out during transportation.

[0028] One end of the extraction pipe 4 is connected to the slurry tank. The slurry inside the slurry tank flows into the filter box 3. Under the operation of the slurry circulation pump 1, the slurry can be transported to the desulfurization tower to achieve wet desulfurization. The slurry in the slurry tank contains a portion that is recycled after desulfurization. It contains solid particulate matter. When it is extracted again after filtration, it is easy to have a small amount of solid particles mixed in. As the slurry enters the filter box 3, it is filtered by the arc-shaped filter plate 6, which intercepts the solid particles inside the filter box 3 and they fall onto the surface of the cleaning plate 18. The filtered slurry is pumped away by the slurry circulation pump 1. The arc-shaped filter plate 6 itself is arc-shaped, effectively... The impact force of the slurry flow is reduced, and the reinforcing arc plate 8, connecting vertical bar 9 and supporting folding plate 10 all reinforce and support the arc filter plate 6 to keep it stable. After a period of time, when a certain number of solid particles are intercepted inside the filter box 3, the locking bolt 16 can be loosened and the top cover 14 can be lifted upward using the operating handle 17. The connecting rod 19 and the cleaning plate 18 will rise together. The cleaning plate 18 is close to the surface of the arc filter plate 6 and will sweep across its surface to remove the adhering particles. Most of the particles intercepted by the filter are on the surface of the cleaning plate 18. As the particles rise with the cleaning plate 18, they can be cleaned.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A slurry circulation pump operation and filtration device for wet desulfurization of coal-fired power units, comprising a slurry circulation pump (1), characterized in that: One end of the slurry circulation pump (1) is fixedly connected to a connecting pipe (2), one end of the connecting pipe (2) is fixedly connected to a filter box (3), the middle part of the filter box (3) away from the connecting pipe (2) is fixedly connected to an extraction pipe (4), the middle part of the two inner walls of the filter box (3) is fixedly installed with positioning frames (5), the middle part of the filter box (3) is installed with an arc-shaped filter plate (6), the two ends of the arc-shaped filter plate (6) are symmetrically fixedly connected with mounting clips (7), the middle and bottom of one end of the arc-shaped filter plate (6) are fixedly installed with reinforcing arc-shaped plates (8), the two ends of the two reinforcing arc-shaped plates (8) are fixedly installed with connecting vertical strips (9), and the two ends of the two reinforcing arc-shaped plates (8) are symmetrically fixedly installed with supporting folding plates (10). The filter box (3) is fixedly installed with a mounting frame (11) at the top edge. A sealing gasket (12) is embedded in the middle of the top of the mounting frame (11). Lower bonding blocks (13) are symmetrically fixedly installed at both ends of the mounting frame (11). The top of the filter box (3) is covered with a top cover (14). Upper bonding blocks (15) are symmetrically fixedly installed at both ends of the top cover (14). A locking bolt (16) is installed in the middle of the upper bonding block (15). An operating handle (17) is fixedly installed in the middle of the top cover (14).

2. The slurry circulation pump operation and filtration equipment for wet desulfurization of coal-fired power units according to claim 1, characterized in that, The two mounting clips (7) are respectively movably engaged inside the two positioning frames (5), and the bottom end of the top cover (14) is pressed tightly against the top of the arc-shaped filter plate (6).

3. The slurry circulation pump operation and filtration equipment for wet desulfurization of coal-fired power units according to claim 1, characterized in that, The top and bottom of the connecting vertical bar (9) are connected to the bottom and top of the two reinforcing arc plates (8) respectively. The bottom of the supporting folding plate (10) is close to the bottom of the filter box (3). The two ends of the supporting folding plate (10) are connected to the two reinforcing arc plates (8) respectively.

4. The slurry circulation pump operation and filtration equipment for wet desulfurization of coal-fired power units according to claim 1, characterized in that, The top cover (14) is pressed tightly against the surface of the sealing gasket (12). The upper bonding block (15) and the lower bonding block (13) are positioned correspondingly and are fixedly connected by locking bolts (16).

5. A slurry circulation pump operation and filtration device for wet desulfurization of coal-fired power units according to claim 1, characterized in that, A cleaning plate (18) is attached to the bottom of the filter box (3) at one side of the arc-shaped filter plate (6), and a connecting rod (19) is fixedly connected to the four corners of the top of the cleaning plate (18).

6. A slurry circulation pump operation and filtration device for wet desulfurization of coal-fired power units according to claim 5, characterized in that, One end of the cleaning plate (18) is set in an arc shape and is closely attached to the surface of the bottom of the arc-shaped filter plate (6). The top end of the connecting rod (19) is connected to the bottom end of the top cover (14).

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