A wet electrostatic precipitator for flue gas cleaning

Abstract

The utility model relates to electrostatic dust removal technical field, concretely is a kind of flue gas purification wet electrostatic precipitator, including cabinet, the inner surface of the cabinet is fixedly connected with cathode hanger, the lower surface of the cathode hanger is fixedly connected with cathode line, the inner surface of the cabinet is fixedly connected with anode mounting plate, the lower surface of the anode mounting plate is fixedly connected with anode tube, the inside of the cabinet is fixedly connected with spray frame, in the utility model, residual mortar is located in connecting cover, start hydraulic push rod, under the impetus of hydraulic push rod, L extrusion plate slides in the inner wall of connecting cover, dispersion pipe passes through the outer wall of connecting cover, rotates block, under the impetus of screw thread, dismounts block, can clean dispersion pipe alone, and L extrusion plate extrudes residual inside connecting cover, so that its volume is smaller, can use tool to clean compressed residual, reduce the cleaning area of connecting cover, save its cleaning time.

Description

Technical Field

[0001] This utility model relates to the field of electrostatic dust removal technology, specifically a wet electrostatic precipitator for flue gas purification. Background Technology

[0002] Wet electrostatic precipitators use water spraying or overflow to form a water film on the surface of the collecting electrodes, thus cleaning the electrodes. Wet cleaning can prevent the re-entrainment of settled dust, achieving high dust removal efficiency. Because there is no rapping device, the operation is more stable. In the existing technology, after water is sprayed, the mortar enters the collection device along the anode tube and is then discharged from the collection device pipe. During this process, the mortar has a certain viscosity, so some mortar will remain on the inner wall of the collection device. After multiple times, the residual mortar accumulates and needs to be cleaned. The mortar enters the collection device from a height and splashes onto different positions on the inner wall of the collection device, increasing the difficulty of subsequent cleaning. Utility Model Content

[0003] The purpose of this invention is to provide a wet electrostatic precipitator for flue gas purification to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A wet electrostatic precipitator for flue gas purification includes a housing, a cathode hanger fixedly connected to the inner surface of the housing, a cathode wire fixedly connected to the lower surface of the cathode hanger, an anode mounting plate fixedly connected to the inner surface of the housing, an anode tube fixedly connected to the lower surface of the anode mounting plate, and a spray frame fixedly connected inside the housing. The lower surface of the box is provided with a sewage discharge mechanism, which includes a connecting cover, a bottom plate and an L-shaped extrusion plate. The connecting cover is fixedly connected to the lower surface of the box, the bottom plate is fixedly connected to the outer surface of the connecting cover, and the L-shaped extrusion plate is slidably connected to the inside of the connecting cover.

[0005] Furthermore, the internal structure of the housing is fixedly connected to a first mounting frame, and the cathode hanger is fixedly connected to the housing via the first mounting frame and a threaded assembly.

[0006] Furthermore, the housing is internally fixedly connected to a second mounting frame, and the anode mounting plate is fixedly connected to the housing via the second mounting frame and a threaded assembly.

[0007] Furthermore, the outer surface of the cathode wire is fixedly connected with several discharge tips, the cathode wire is inserted into the interior of the anode tube, and there is a gap between the cathode wire and the anode tube.

[0008] Furthermore, a water inlet pipe is fixedly connected to the outer surface of the spray frame.

[0009] Furthermore, the sewage discharge mechanism also includes a dispersion pipe, a plug, a hydraulic push rod, a smoke inlet pipe, and a drain pipe. The dispersion pipe is fixedly connected to the outer surface of the L-shaped extrusion plate, the plug is threadedly connected to the inner surface of the dispersion pipe, the hydraulic push rod is fixedly connected to the outer surface of the connecting cover, the output end of the hydraulic push rod is fixedly connected to the L-shaped extrusion plate, the smoke inlet pipe is fixedly connected to the outer surface of the connecting cover, and the drain pipe is fixedly connected to the side surface of the connecting cover.

[0010] Furthermore, a top cover is fixedly connected to the upper surface of the box, a discharge pipe is fixedly connected to the upper surface of the top cover, a slide rail is fixedly connected to the side surface of the connecting cover, and a sliding door is slidably connected inside the slide rail.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. After the flushing water mixes with the contaminants, it forms mortar, which falls along the pipe wall into the bottom of the tank and is then collected inside the connecting hood. The mortar that is not discharged in time is squeezed out by adjusting the L-shaped extrusion plate. 2. The mortar is discharged to the outside through the drain pipe. The remaining mortar is located in the connecting cover. Activate the hydraulic push rod. Under the push of the hydraulic push rod, the L-shaped extrusion plate slides on the inner wall of the connecting cover. The dispersion tube passes through the outer wall of the connecting cover. Rotate the block and remove the block under the push of the thread. The dispersion tube can be cleaned separately. The L-shaped extrusion plate squeezes the residue inside the connecting cover, making it smaller. Tools can be used to clean the compressed residue, reducing the cleaning area of ​​the connecting cover and saving cleaning time. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the box body of this utility model; Figure 3 This is the utility model Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the sewage discharge mechanism of this utility model.

[0013] In the diagram: 1. Box body; 101. First mounting frame; 102. Second mounting frame; 2. Cathode hanger; 201. Cathode wire; 202. Discharge tip; 3. Anode mounting plate; 301. Anode tube; 4. Sprayer frame; 401. Water inlet pipe; 5. Sewage discharge mechanism; 501. Connecting cover; 502. Base plate; 503. L-shaped extrusion plate; 504. Dispersion pipe; 505. Block; 506. Hydraulic push rod; 507. Smoke inlet pipe; 508. Drainage pipe; 6. Top cover; 601. Discharge pipe; 7. Slide rail; 701. Sliding door. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0015] Please see Figure 1-4 In this embodiment of the present invention, a flue gas purification wet electrostatic precipitator includes a housing 1, a cathode hanger 2 fixedly connected to the inner surface of the housing 1, a cathode wire 201 fixedly connected to the lower surface of the cathode hanger 2, an anode mounting plate 3 fixedly connected to the inner surface of the housing 1, an anode tube 301 fixedly connected to the lower surface of the anode mounting plate 3, and a spray rack 4 fixedly connected inside the housing 1. The lower surface of the housing 1 is provided with a sewage discharge mechanism 5, which includes a connecting cover 501, a bottom plate 502 and an L-shaped extrusion plate 503. The connecting cover 501 is fixedly connected to the lower surface of the housing 1, the bottom plate 502 is fixedly connected to the outer surface of the connecting cover 501, and the L-shaped extrusion plate 503 is slidably connected to the inside of the connecting cover 501.

[0016] Specifically, flue gas enters evenly from the bottom of the housing 1, first passing through the array of anode tubes 301. The cathode hanger 2 suspends the cathode wires 201 on the central axis of each anode tube 301, and the two are connected to the negative and positive terminals of the high-voltage power supply, respectively. Under the action of the high-voltage electric field, the cathode wires 201 generate corona discharge, which rapidly charges the particulate matter and acid mist droplets. The charged particles migrate towards the inner wall of the anode tube 301 and are captured. After the power is cut off, the spray frame 4 sprays rinsing water onto the inner wall of the anode tube 301 at regular intervals or continuously to form a uniform water film, which washes the deposited dust and acid mist particles downward. The rinsing water mixes with the pollutants to form slurry, which falls along the tube wall into the bottom of the housing 1 and is then collected inside the connecting cover 501. The slurry that is not discharged in time is squeezed by adjusting the L-shaped extrusion plate 503.

[0017] Example 1 like Figure 1-4 As shown, a first mounting frame 101 is fixedly connected inside the housing 1. The cathode hanger 2 is fixedly connected to the housing 1 through the first mounting frame 101 and a threaded assembly. A second mounting frame 102 is fixedly connected inside the housing 1. The anode mounting plate 3 is fixedly connected to the housing 1 through the second mounting frame 102 and a threaded assembly.

[0018] In this embodiment, the first mounting frame 101 and the second mounting frame 102 respectively mount the cathode hanger 2 and the anode mounting plate 3. The spray frame 4 is installed between the first mounting frame 101 and the second mounting frame 102. The installation of the spray frame 4, the anode mounting plate 3 and the cathode hanger 2 is prior art and will not be described in detail here.

[0019] like Figure 1-4 As shown, several discharge tips 202 are fixedly connected to the outer surface of the cathode wire 201. The cathode wire 201 is inserted into the interior of the anode tube 301, and there is a gap between the cathode wire 201 and the anode tube 301. A water inlet pipe 401 is fixedly connected to the outer surface of the spray frame 4.

[0020] In this embodiment, the discharge tip 202 is fixed on the surface of the cathode wire 201 and maintains a designed distance from the inner wall of the anode tube 301. When the high-voltage power supply is turned on, a non-uniform electric field is formed between the two. The electric field strength is the largest at the discharge tip 202, which first generates a stable corona discharge, so that the dust, acid mist and other particles in the flue gas are fully charged. The charged particles migrate to and attach to the inner wall of the positively charged anode tube 301 under the drive of the electric field force, realizing gas-solid / gas-liquid separation. The water inlet pipe 401 supplies water to the spray frame 4 through an external water pipe via a solenoid valve, and the anode tube 301 is rinsed when the machine is stopped. Example 2 Based on Example 1, this addresses the issue of the inconvenience in compressing solid pollutants, which was present in Example 1.

[0021] like Figure 1-4 As shown, the sewage discharge mechanism 5 also includes a dispersion pipe 504, a block 505, a hydraulic push rod 506, a smoke inlet pipe 507, and a drain pipe 508. The dispersion pipe 504 is fixedly connected to the outer surface of the L-shaped extrusion plate 503, the block 505 is threadedly connected to the inner surface of the dispersion pipe 504, the hydraulic push rod 506 is fixedly connected to the outer surface of the connecting cover 501, the output end of the hydraulic push rod 506 is fixedly connected to the L-shaped extrusion plate 503, the smoke inlet pipe 507 is fixedly connected to the outer surface of the connecting cover 501, and the drain pipe 508 is fixedly connected to the side surface of the connecting cover 501.

[0022] In this embodiment, the smoke inlet pipe 507 is connected to the external smoke outlet pipe. The flue gas enters the interior of the connecting cover 501 from the smoke inlet pipe 507, and is then dispersed through the holes of the dispersion pipe 504. It then enters the anode tube 301 for corona discharge. During rinsing, the slurry is discharged to the outside from the drain pipe 508. The residual slurry is located in the connecting cover 501. The hydraulic push rod 506 is activated. Under the push of the hydraulic push rod 506, the L-shaped extrusion plate 503 slides on the inner wall of the connecting cover 501. The dispersion pipe 504 passes through the outer wall of the connecting cover 501. The plug 505 is rotated and disassembled under the push of the thread. The dispersion pipe 504 can be cleaned separately. The L-shaped extrusion plate 503 extrudes the residue inside the connecting cover 501, making it smaller in volume.

[0023] like Figure 1-4As shown, a top cover 6 is fixedly connected to the upper surface of the box 1, a discharge pipe 601 is fixedly connected to the upper surface of the top cover 6, a slide rail 7 is fixedly connected to the side surface of the connecting cover 501, and a sliding door 701 is slidably connected inside the slide rail 7.

[0024] In this embodiment, the filtered flue gas is discharged from the exhaust pipe 601. By sliding the sliding door 701 along the slide rail 7, the opening of the connecting cover 501 can be unobstructed. At this time, tools can be used to clean the compressed residue, reducing the cleaning area of ​​the connecting cover 501 and saving cleaning time.

[0025] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] 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 wet electrostatic precipitator for flue gas purification, comprising a housing (1), wherein a cathode hanger (2) is fixedly connected to the inner surface of the housing (1), a cathode wire (201) is fixedly connected to the lower surface of the cathode hanger (2), an anode mounting plate (3) is fixedly connected to the inner surface of the housing (1), an anode tube (301) is fixedly connected to the lower surface of the anode mounting plate (3), and a spray frame (4) is fixedly connected inside the housing (1); Its features are: The lower surface of the housing (1) is provided with a sewage discharge mechanism (5), which includes: The connecting cover (501) is fixedly connected to the lower surface of the housing (1); The base plate (502) is fixedly connected to the outer surface of the connecting cover (501); The L-shaped extrusion plate (503) is slidably connected to the inside of the connecting cover (501).

2. The wet electrostatic precipitator for flue gas purification according to claim 1, characterized in that, The housing (1) is internally fixedly connected to a first mounting frame (101), and the cathode hanger (2) is fixedly connected to the housing (1) through the first mounting frame (101) and a threaded assembly.

3. The wet electrostatic precipitator for flue gas purification according to claim 1, characterized in that, The housing (1) is internally fixedly connected to a second mounting frame (102), and the anode mounting plate (3) is fixedly connected to the housing (1) through the second mounting frame (102) and a threaded assembly.

4. The wet electrostatic precipitator for flue gas purification according to claim 1, characterized in that, The outer surface of the cathode wire (201) is fixedly connected with several discharge tips (202). The cathode wire (201) is inserted into the interior of the anode tube (301), and there is a gap between the cathode wire (201) and the anode tube (301).

5. The wet electrostatic precipitator for flue gas purification according to claim 1, characterized in that, A water inlet pipe (401) is fixedly connected to the outer surface of the spray frame (4).

6. The wet electrostatic precipitator for flue gas purification according to claim 1, characterized in that, The sewage discharge mechanism (5) also includes: The dispersion tube (504) is fixedly connected to the outer surface of the L-shaped extrusion plate (503); The plug (505) is threaded to the inner surface of the dispersion tube (504); A hydraulic push rod (506) is fixedly connected to the outer surface of the connecting cover (501), and the output end of the hydraulic push rod (506) is fixedly connected to the L-shaped extrusion plate (503); The smoke inlet pipe (507) is fixedly connected to the outer surface of the connecting cover (501); The drain pipe (508) is fixedly connected to the side surface of the connecting cover (501).

7. The wet electrostatic precipitator for flue gas purification according to claim 1, characterized in that, The upper surface of the box (1) is fixedly connected to a top cover (6), the upper surface of the top cover (6) is fixedly connected to a discharge pipe (601), the side surface of the connecting cover (501) is fixedly connected to a slide rail (7), and the inside of the slide rail (7) is slidably connected to a sliding door (701).

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