CN114029165B - Wet-type electric dust remover for treating atmospheric pollution and dust removing method thereof - Google Patents

Abstract

The invention relates to the technical field of environmental protection equipment, and discloses a wet electrostatic precipitator for air pollution treatment and a dust removal method thereof. A bottom sealing cover is fixedly installed at the bottom through screws, a support base is fixedly installed below the outside of the main frame, an air inlet pipe is fixedly installed below the left side of the main frame, and an anode discharge device is fixedly installed on the front of the air inlet pipe. The wet electrostatic precipitator and its dust removal method for air pollution treatment, when injecting dust-containing gas into the inside of the air inlet pipe, discharge the gas through the discharge rods evenly distributed inside the air inlet pipe, thereby increasing the contact time between the dust-containing gas and the discharge equipment , thereby ensuring that the dust particles in the gas can be positively charged, ensuring that the cathode plate can completely absorb the dust particles, and improving the dust removal effect of the device.

Description

A wet electrostatic precipitator for air pollution treatment and its dust removal method

Technical field

The invention relates to the technical field of environmental protection equipment, specifically a wet electrostatic precipitator for air pollution treatment and a dust removal method thereof.

Background technique

Wet electrostatic precipitator is a high-voltage electrostatic precipitator used to process humid gas. It is mainly used to remove dust, acid mist, water droplets, aerosols, odors, PM2.5 and other harmful substances in humid gas. Ideal equipment for atmospheric dust pollution. Wet electrostatic precipitators are usually referred to as WESP. The dust collection principle of wet electrostatic precipitators is the same as that of dry electrostatic precipitators. They rely on high-voltage corona discharge to charge the dust. The charged dust reaches the dust collecting plate under the action of the electric field force. Tube. Dry electrostatic precipitators generally use mechanical vibration or sonic cleaning to remove dust accumulation on the electrodes, while wet electrostatic precipitators use regular flushing to remove dust with the flow of flushing fluid.

Existing wet electrostatic precipitators usually directly introduce dust-containing gas into the discharge chamber for discharge treatment, so that dust and other impurity particles in the gas are positively charged. However, existing wet electrostatic precipitators usually discharge the gas in one place, resulting in gas The dust in the dust collector cannot be completely positively charged. During the subsequent dust removal process, the cathode plate cannot completely absorb the dust. In addition, existing wet dust collectors usually use flowing flushing liquid to clean the dust. This method cannot remove the cathode plate. The dust adsorbed on the surface is completely removed. During subsequent use, the cathode plate cannot adsorb the charged dust, resulting in a reduction in dust removal effect. For this reason, we propose a wet electrostatic precipitator for air pollution treatment to solve the above problems.

Contents of the invention

(1) Technical problems solved

The invention provides a wet electrostatic precipitator for air pollution treatment and a dust removal method thereof, which has the advantages of improving the gas dust removal effect and improving the cleaning effect of the dust collecting plate, and solves the above-mentioned improvement problems.

(2) Technical solutions

The present invention provides the following technical solution: a wet electrostatic precipitator for air pollution treatment, including a main frame, the top of the main frame is fixed with a top sealing cover fixed by screws, and the bottom of the main frame is fixed with a bottom seal fixed by screws. Cover, a support base is fixedly installed below the outside of the main frame, an air inlet pipe is fixedly installed below the left side of the main frame, and an anode discharge device is fixedly installed on the front of the air inlet pipe, and an anode discharge device is fixedly installed inside the air inlet pipe. A discharge rod, a drain valve pipe is fixedly installed at the bottom of the bottom sealing cover, a high-pressure water pump is fixedly installed on the left side of the top of the top sealing cover, and an air outlet pipe is fixedly installed on the right side of the top of the top sealing cover. Electric push rods are fixedly installed on the front and rear sides of the top of the sealing cover, and the bottoms of the two electric pushrods are fixedly installed with a mounting frame located inside the top sealing cover. The bottom of the mounting frame is fixedly installed with a connecting rod, and the connecting rod is fixedly installed. A telescopic rod is fixedly installed on the side below, a cleaning plate is fixedly installed on one end of the telescopic rod, a compression spring is connected to the outer movable sleeve of the telescopic rod, a first-level water inlet pipe is fixedly installed on the top of the installation frame, and a first-level water inlet pipe is fixedly installed on the top of the installation frame. The water inlet pipe is fixedly connected to the water outlet of the high-pressure water pump through a connecting pipe. A secondary water inlet pipe is fixedly installed at the bottom of the primary water inlet pipe, and a water spray pipe is fixedly installed at the bottom of the secondary water inlet pipe. The inside of the main frame A limit frame is clipped on the top, and evenly distributed cathode dust collecting plates are fixedly installed inside the limit frame.

Preferably, the discharge rods are evenly distributed inside the air inlet pipe, and the discharge rods are electrically connected to the anode discharge equipment, and the left end of the air inlet pipe is inclined upward.

Preferably, the bottom of the bottom sealing cover is a slope inclined toward the middle, and a limiting strip that cooperates with the filter screen is fixedly installed inside the bottom sealing cover.

Preferably, a limit bar that cooperates with the limit frame is fixedly installed above the inside of the main frame, and evenly distributed cathode dust collecting plates are fixedly installed inside the limit frame.

Preferably, the cleaning plates are evenly distributed on the left and right sides of the cathode dust collecting plate, the cleaning plates have the same width as the front and rear sides of the cathode dust collecting plate, and dense bristles are fixedly installed on the sides of the cleaning plate.

Preferably, the secondary water inlet pipe is located in the middle of the water spray pipe, the length of the water spray pipe is the same as the width of the front and rear sides of the cathode dust collecting plate, and the sides of the water spray pipe are fixedly installed with evenly distributed High pressure nozzle.

Preferably, the two electric push rods are located in the middle of the left and right sides of the installation frame, and the two electric push rods are mirror-distributed on the front and rear sides of the top of the installation frame.

A dust removal method of a wet electrostatic precipitator for air pollution treatment as described in any one of claims 1-7, including the following steps:

S1. Connect one end of the high-pressure water pump to the existing water supply equipment, introduce dust-containing gas into the air inlet pipe, discharge the gas through the discharge rods evenly distributed inside the air inlet pipe, so that the dust and other particles in the gas are positively charged, and after discharge The processed dust-containing gas enters the interior of the main frame, and the charged particles in the gas are adsorbed through the cathode dust collecting plate. The dust-removed gas is discharged along the air outlet pipe.

S2. After the dust and other particles on the surface of the cathode dust collecting plate accumulate to a certain amount, use the electric push rod to drive the installation frame, connecting rod and cleaning plate downward to clean both sides of the cathode dust collecting plate. At the same time, when the cleaning plate moves up and down, The compression spring exerts pressure on the outside of the cleaning plate and cathode dust collecting plate, causing dust and other particles on both sides of the cathode dust collecting plate to fall off.

S3. When the installation frame drives the cleaning plate to move up and down to clean the cathode dust collecting plate, the high-pressure water pump works to introduce the cleaning water into the water spray pipe along the connecting pipe, primary water inlet pipe, and secondary water inlet pipe, and along the water spray pipe The high-pressure nozzle on the side sprays out, and the two sides of the cathode dust collecting plate are cleaned through the water spray pipe and the cleaning plate.

S4. The cleaning water is filtered by the filter and falls into the bottom sealing cover, and the sewage is discharged through the drain valve pipe.

Three beneficial effects

The invention has the following beneficial effects:

1. This wet electrostatic precipitator and its dust removal method for air pollution treatment, when injecting dust-containing gas into the inside of the air inlet pipe, discharge the gas through the discharge rods evenly distributed inside the air inlet pipe, thereby increasing the interaction between the dust-containing gas and the discharge equipment. The contact time ensures that the dust particles in the gas can be positively charged, ensuring that the cathode plate can completely adsorb the dust particles, and improves the dust removal effect of the device.

2. This wet electrostatic precipitator and its dust removal method for air pollution treatment use an electric push rod to drive the installation frame, connecting rod and cleaning plate to move up and down when cleaning the cathode dust collecting plate. The dust is cleaned to improve the cleaning effect of the cathode dust collecting plate. At the same time, when the cleaning plate moves up and down, the compression spring exerts pressure on the cleaning plate and the outside of the cathode dust collecting plate, further improving the cleaning effect of the cleaning plate on the cathode dust collecting plate.

3. In this wet electrostatic precipitator and its dust removal method for air pollution treatment, when the installation frame drives the cleaning plate to move up and down to clean the cathode dust collecting plate, the high-pressure water pump works to move the cleaning water along the connecting pipe, the first-level water inlet pipe, and the second-level water inlet pipe. The stepped water inlet pipe is introduced into the water spray pipe and sprays out along the high-pressure nozzle on the side of the water spray pipe to assist in cleaning the cathode dust collecting plate and further improve the cleaning effect of the cathode dust collecting plate.

Description of the drawings

Figure 1 is a schematic diagram of the overall structure of the present invention;

Figure 2 is a schematic structural diagram of the interior of the main frame of the present invention;

Figure 3 is a schematic structural diagram of the interior of the bottom seal cover of the present invention;

Figure 4 is a schematic structural diagram of the interior of the top sealing cover of the present invention;

Figure 5 is a schematic structural diagram of the bottom of the installation frame of the present invention;

Figure 6 is an enlarged structural schematic diagram of position A in Figure 5 of the present invention.

In the picture: 1. Main frame; 2. Top sealing cover; 3. Bottom sealing cover; 4. Support base; 5. Air inlet pipe; 6. Anode discharge equipment; 7. Discharge rod; 8. Limiting frame; 9. Cathode Dust collecting plate; 10. Filter; 11. Drainage valve pipe; 12. High-pressure water pump; 13. Electric push rod; 14. Air outlet pipe; 15. Installation frame; 16. Connecting rod; 17. Cleaning plate; 18. Telescopic rod ; 19. Compression spring; 20. Primary water inlet pipe; 21. Secondary water inlet pipe; 22. Water spray pipe.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Please refer to Figure 1-6. A wet electrostatic precipitator for air pollution treatment includes a main frame 1. The top of the main frame 1 is fixed with a top seal 2 fixed by screws. The bottom of the main frame 1 is fixed with a bottom seal fixed by screws. Cover 3, the bottom of the bottom sealing cover 3 is an inclined plane inclined toward the middle, and the inside of the bottom sealing cover 3 is fixedly installed with a limit strip that cooperates with the filter 10. The bottom of the bottom sealing cover 3 is an inclined plane inclined toward the middle, which is convenient for The sewage inside the bottom sealing cover 3 is discharged to prevent the sewage from accumulating inside the bottom sealing cover 3. At the same time, the sewage is filtered through the filter screen 10 to achieve solid-liquid separation of the sewage. The main frame 1 and the bottom sealing cover 3 are connected through screws to connect the bottom The filter 10 can be cleaned by removing the sealing cover 3. A support base 4 is fixedly installed below the outside of the main frame 1. An air inlet pipe 5 is fixedly installed below the left side of the main frame 1, and an anode is fixedly installed on the front of the air inlet pipe 5. The discharge device 6 has a discharge rod 7 fixedly installed inside the air inlet pipe 5. The discharge rods 7 are evenly distributed inside the air inlet pipe 5, and the discharge rod 7 is electrically connected to the anode discharge device 6. The left end of the air inlet pipe 5 faces upward. Tilt, when dust-containing gas is injected into the inside of the air inlet pipe 5, the gas is discharged through the discharge rods 7 evenly distributed inside the air inlet pipe 5, increasing the contact time between the dust-containing gas and the discharge equipment, thereby ensuring that the dust particles in the gas can It has a positive charge to ensure that the cathode plate can completely adsorb dust particles and improve the dust removal effect of the device. The left end of the air inlet pipe 5 is tilted upward to prevent the cleaning water from entering the inside of the air inlet pipe 5 when it falls and prevent the cleaning water from affecting the discharge rod. 7, the drain valve pipe 11 is fixedly installed at the bottom of the bottom sealing cover 3, the high-pressure water pump 12 is fixedly installed on the left side of the top of the top sealing cover 2, the air outlet pipe 14 is fixedly installed on the right side of the top of the top sealing cover 2, and the top seal Electric push rods 13 are fixedly installed on the front and rear sides of the top of the cover 2, and the bottoms of the two electric push rods 13 are fixedly installed with an installation frame 15 located inside the top sealing cover 2. The two electric push rods 13 are located around the installation frame 15 In the middle of both sides, two electric push rods 13 are mirrored on the front and rear sides of the top of the installation frame 15, ensuring the stability when the two electric push rods 13 drive the installation frame 15 to move, and reducing the probability of failure when the device is working. , the connecting rod 16 is fixedly installed at the bottom of the installation frame 15, and the telescopic rod 18 is fixedly installed on the side below the connecting rod 16, and the cleaning plate 17 is fixedly installed at one end of the telescopic rod 18, and the cleaning plate 17 is evenly distributed on the cathode dust collecting plate 9 On the left and right sides of the cleaning plate 17 and the cathode dust collecting plate 9, the widths of the front and rear sides are the same. The sides of the cleaning plate 17 are fixedly equipped with dense bristles. When the cathode dust collecting plate 9 is cleaned, the electric push rod 13 The installation frame 15, the connecting rod 16 and the cleaning plate 17 are driven to move up and down to clean the dust adsorbed on both sides of the cathode dust collecting plate 9, thereby improving the cleaning effect of the cathode dust collecting plate 9. At the same time, when the cleaning plate 17 moves up and down, through compression The spring 19 exerts pressure on the outside of the cleaning plate 17 and the cathode dust collecting plate 9, further improving the cleaning effect of the cleaning plate 17 on the cathode dust collecting plate 9. The front and rear widths of the cleaning plate 17 and the cathode dust collecting plate 9 are the same, ensuring that the cleaning plate 17 The cathode dust collecting plate 9 can be fully cleaned. The external movable sleeve of the telescopic rod 18 is connected with a compression spring 19. A primary water inlet pipe 20 is fixedly installed on the top of the installation frame 15, and the primary water inlet pipe 20 is connected to the high-pressure water pump 12 through a connecting pipe. The water outlet is fixedly connected. A secondary water inlet pipe 21 is fixedly installed at the bottom of the primary water inlet pipe 20. The secondary water inlet pipe 21 is located in the middle of the water spray pipe 22. The length of the water spray pipe 22 is consistent with the front and rear sides of the cathode dust collecting plate 9. The width values on both sides are the same. Evenly distributed high-pressure nozzles are fixedly installed on the sides of the water spray pipe 22. When the installation frame 15 drives the cleaning plate 17 to move up and down to clean the cathode dust collecting plate 9, the high-pressure water pump 12 works to push the cleaning water along the The connecting pipe, the primary water inlet pipe 20 and the secondary water inlet pipe 21 are introduced into the water spray pipe 22 and sprayed out along the high-pressure nozzle on the side of the water spray pipe 22 to assist in cleaning the cathode dust collecting plate 9 and further improve the cathode dust collection. The cleaning effect of the plate 9 is good, and the water spray pipe 22 is fixedly installed at the bottom of the secondary water inlet pipe 21. The upper part of the main frame 1 is clamped with a limit frame 8, and a uniformly distributed cathode set is fixedly installed inside the limit frame 8. Dust plate 9, the upper part of the main frame 1 is fixedly installed with a limit bar that cooperates with the limit frame 8, and the inner part of the limit frame 8 is fixedly installed with evenly distributed cathode dust collecting plates 9, through the limit inside the main frame 1 The bit bar restricts the limit frame 8, ensuring the stability of the limit frame 8 and the cathode dust collecting plate 9 when working. The cathode dust collecting plate 9 is evenly distributed inside the limit frame 8, ensuring the dust removal effect of the device.

A dust removal method using a wet electrostatic precipitator for air pollution treatment, including the following steps:

S1. Connect one end of the high-pressure water pump 12 to the existing water supply equipment, introduce dust-containing gas into the inside of the air inlet pipe 5, discharge the gas through the discharge rods 7 evenly distributed inside the air inlet pipe 5, so that the dust and other particles in the gas have a positive charge. The dust-containing gas that has been charged and discharged enters the interior of the main body frame 1 and adsorbs the charged particles in the gas through the cathode dust collecting plate 9. The dust-removed gas is discharged along the outlet pipe 14.

S2. After the dust and other particles on the surface of the cathode dust collecting plate 9 accumulate to a certain amount, the electric push rod 13 drives the installation frame 15, the connecting rod 16 and the cleaning plate 17 to move downward to clean both sides of the cathode dust collecting plate 9. At the same time, When the cleaning plate 17 moves up and down, the compression spring 19 exerts pressure on the outside of the cleaning plate 17 and the cathode dust collecting plate 9, causing dust and other particles on both sides of the cathode dust collecting plate 9 to fall off.

S3. When the installation frame 15 drives the cleaning plate 17 to move up and down to clean the cathode dust collecting plate 9, the high-pressure water pump 12 works to introduce the cleaning water into the water spray pipe 22 along the connecting pipe, the primary water inlet pipe 20, and the secondary water inlet pipe 21. inside, and spray out along the high-pressure nozzle on the side of the water spray pipe 22. The water spray pipe 22 cooperates with the cleaning plate 17 to clean both sides of the cathode dust collecting plate 9.

S4. The cleaning water is filtered by the filter screen 10 and then falls into the bottom sealing cover 3, and the sewage is discharged through the drain valve pipe 11.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations are mutually exclusive. any such actual relationship or sequence exists between them. Furthermore, the terms "comprises," "comprises," or any other variations thereof are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed other elements, or elements inherent to the process, method, article or equipment.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (5)

1. Wet electric dust collector for treating air pollution, comprising a main body frame (1), characterized in that: the top of main body frame (1) is fixedly provided with a top sealing cover (2) through a screw, the bottom of main body frame (1) is fixedly provided with a bottom sealing cover (3) through a screw, the outside lower part of main body frame (1) is fixedly provided with a supporting base (4), the left lower part of main body frame (1) is fixedly provided with an air inlet pipe (5), the front surface of air inlet pipe (5) is fixedly provided with an anode discharge device (6), the inside of air inlet pipe (5) is fixedly provided with a discharge rod (7), the bottom of bottom sealing cover (3) is fixedly provided with a blow-off valve pipe (11), the left side of top sealing cover (2) is fixedly provided with a high-pressure water pump (12), the right side of top sealing cover (2) is fixedly provided with an air outlet pipe (14), the front side and the rear side of top sealing cover (2) are fixedly provided with electric push rods (13), the bottoms of two electric push rods (13) are fixedly provided with mounting frames (15) positioned inside the top sealing cover (2), the bottoms of the mounting frames (15) are fixedly provided with a connecting rod (16), the bottoms of the mounting frames (16) are fixedly provided with a telescopic rod (18), the telescopic rod (18) are fixedly provided with a telescopic rod (18), one end of the telescopic rod (18) is fixedly provided with a telescopic rod (18), the top of the installation frame (15) is fixedly provided with a first-stage water inlet pipe (20), the first-stage water inlet pipe (20) is fixedly connected with a water outlet of the high-pressure water pump (12) through a connecting pipe, the bottom of the first-stage water inlet pipe (20) is fixedly provided with a second-stage water inlet pipe (21), the bottom of the second-stage water inlet pipe (21) is fixedly provided with a water spraying pipe (22), the upper part inside the main body frame (1) is clamped with a limiting frame (8), and the inside of the limiting frame (8) is fixedly provided with uniformly distributed cathode dust collecting plates (9);

the discharge rods (7) are uniformly distributed in the air inlet pipe (5), the discharge rods (7) are electrically connected with the anode discharge equipment (6), and one end of the left side of the air inlet pipe (5) is inclined upwards;

the cleaning plates (17) are uniformly distributed on the left side and the right side of the cathode dust collecting plate (9), the width values of the cleaning plates (17) are the same as those of the front side and the rear side of the cathode dust collecting plate (9), and dense bristles are fixedly arranged on the side surfaces of the cleaning plates (17);

the secondary water inlet pipe (21) is positioned in the middle of the water spraying pipe (22), the length value of the water spraying pipe (22) is the same as the width value of the front side and the rear side of the cathode dust collecting plate (9), and high-pressure spray heads which are uniformly distributed are fixedly arranged on the side face of the water spraying pipe (22).

2. A wet electric precipitator for treating atmospheric pollution according to claim 1, wherein: the bottom of the bottom sealing cover (3) is an inclined plane inclined towards the middle part, and a limit strip matched with the filter screen (10) is fixedly arranged in the bottom sealing cover (3).

3. A wet electric precipitator for treating atmospheric pollution according to claim 1, wherein: the two electric push rods (13) are positioned in the middle of the left side and the right side of the mounting frame (15), and the two electric push rods (13) are distributed on the front side and the rear side of the top of the mounting frame (15) in a mirror image mode.

4. A wet electric precipitator for treating atmospheric pollution according to claim 1, wherein: and a limit strip matched with the limit frame (8) is fixedly arranged above the inside of the main body frame (1).

5. A method of removing dust from a wet type electric dust collector for treating atmospheric pollution according to any one of claims 1 to 4, comprising the steps of:

s1, connecting one end of a high-pressure water pump (12) with the existing water supply equipment, introducing dust-containing gas into an air inlet pipe (5), performing discharge treatment on the gas through discharge rods (7) uniformly distributed in the air inlet pipe (5), enabling particles in the gas to have positive charges, enabling the dust-containing gas subjected to the discharge treatment to enter the main frame (1), adsorbing the charged particles in the gas through a cathode dust collecting plate (9), and discharging the dust-removed gas along an air outlet pipe (14);

s2, after particles on the surface of the cathode dust collecting plate (9) accumulate to a certain amount, the electric push rod (13) drives the mounting frame (15), the connecting rod (16) and the cleaning plate (17) to move downwards to clean two sides of the cathode dust collecting plate (9), and meanwhile, when the cleaning plate (17) moves up and down, the compression spring (19) applies pressure to the cleaning plate (17) and the outer sides of the cathode dust collecting plate (9) so as to enable the particles on two sides of the cathode dust collecting plate (9) to fall off;

s3, when the mounting frame (15) drives the cleaning plate (17) to move up and down to clean the cathode dust collecting plate (9), cleaning water is guided into the spray pipe (22) along the connecting pipe, the primary water inlet pipe (20) and the secondary water inlet pipe (21) through the work of the high-pressure water pump (12), sprayed out along the high-pressure spray nozzle on the side surface of the spray pipe (22), and cleaned on two sides of the cathode dust collecting plate (9) through the cooperation of the spray pipe (22) and the cleaning plate (17);

s4, filtering the cleaning water by a filter screen (10), and then falling into the bottom sealing cover (3), and discharging the sewage by a blow-down valve pipe (11).