Automatic flushing wet-type electric dust remover and dust removal method

Abstract

The invention discloses an automatic flushing wet-type electric dust remover and a dust removal method, the automatic flushing wet-type electric dust remover comprises: a housing comprising a gas inlet and a gas outlet, gas to be treated enters from the gas inlet, and is discharged from the gas outlet after being subjected to dust removal and purification; the ionization device and the dust collection polar plate are arranged in the shell between the air inlet and the air outlet, and the ionization device is used for ionizing passing gas to generate charged particles; the dust collection polar plate is used for trapping charged particles; the spraying system is fixed above the ionization device and the dust collection polar plate and is used for cleaning the dust collection polar plate and the ionization device; the automatic control system is used for automatically controlling the wet-type electric dust remover to be powered off and powered on and starting and stopping of the spraying system; and the drainage system is used for discharging waste water generated by the spraying system and used for cleaning the dust collection polar plate and the ionization device out of the shell. And the cleaning efficiency and the equipment operation stability are greatly improved, manual operation and potential safety hazards are reduced, and wide application prospects are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial hazard control, and in particular to an automatic flushing wet electrostatic precipitator and a dust removal method. Background Art

[0002] Wet electrostatic precipitators are widely used in waste gas purification in the power, steel, cement, chemical and other industries, and can effectively remove fine particles and gaseous pollutants. However, traditional wet electrostatic precipitators require regular manual cleaning to ensure their dust removal efficiency and equipment stability. This cleaning method is not only time-consuming and labor-intensive, but also has problems such as unstable cleaning effects and operational safety risks. Especially when dealing with high-temperature, high-humidity and corrosive industrial waste gases, the difficulty and risk of manual cleaning are further increased. Therefore, there is an urgent need for a wet electrostatic precipitator that can achieve automatic cleaning to improve operating efficiency, ensure equipment stability, and enhance operational safety.

[0003] In response to the above problems, the applicant developed this system based on the current production safety situation and the premise of improving the company's own management. According to the physical characteristics of electromechanical equipment of industrial enterprises and the different hazards of hazardous source areas, the system automatically generates voice broadcast safety reminders in dangerous areas through voice broadcast based on the information and data analysis of the system platform, and uses wired and wireless (4G\5G communication) technology to send them to on-site smart terminals to avoid injuries to personnel in dangerous areas and achieve the purpose of safe production, safe maintenance, and safe inspection. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic flushing wet electrostatic precipitator and a dust removal method to solve the problems raised in the above background technology that manual cleaning is difficult and risky, has poor operating safety, low equipment operating efficiency and poor equipment stability when treating high-temperature, high-humidity and corrosive industrial waste gas.

[0005] To achieve the above object, the present invention provides the following technical solution: an automatic flushing wet electrostatic precipitator, comprising:

[0006] The housing comprises an air inlet and an air outlet, the gas to be processed enters from the air inlet and is discharged from the air outlet after being dust-removed and purified;

[0007] The ionization device and the dust collecting plate are both installed inside the housing between the air inlet and the air outlet. The ionization device is used to ionize the passing gas to generate charged particles; the dust collecting plate is used to capture the charged particles.

[0008] A spray system, fixed above the ionization device and the dust collecting plate, for cleaning the dust collecting plate and the ionization device;

[0009] Automatic control system, used to automatically control the power supply and shutdown of the wet electrostatic precipitator and the start and stop of the spray system;

[0010] A drainage system is used to discharge the waste water generated by the spray system after cleaning the dust collecting plates and the ionization device out of the shell.

[0011] As a preferred technical solution, the spray system includes a spray pump and a spray nozzle. The spray pump is placed outside the shell and is connected to the spray nozzle through a spray pipe. The spray nozzle extends into the shell and is located above the ionization device and the dust collecting plate, so that the dust collecting plate and the ionization device can be cleaned by spraying cleaning liquid.

[0012] As a preferred technical solution, the ionization device is a plurality of vertically arranged electrodes, the dust collecting electrode plate is a hollow cylinder, the electrode is inserted into the hollow cylinder, and the dust collecting electrode plate is clamped in the middle of the inner cavity of the shell.

[0013] As a preferred technical solution, the automatic control system includes a controller, a sensor and a solenoid valve, wherein the controller is a PLC programmable controller; the solenoid valve is arranged on the spray pipe between the spray pump and the spray nozzle, and is used to control the on and off of the spray pump; the sensor is arranged at the air outlet of the shell; the controller, the sensor and the solenoid valve are electrically connected to each other.

[0014] As a preferred technical solution, the drainage system includes a drainage pipe and a drainage valve. The drainage pipe is connected to the bottom of the shell and is provided with a drainage valve for controlling the opening and closing of the drainage pipe.

[0015] An automatic flushing wet dust removal method for removing particulate matter and droplets from industrial waste gas is characterized in that an automatic flushing wet electrostatic precipitator is used, which includes the following steps:

[0016] Step S1: Wet power off;

[0017] Step S2: spray cleaning;

[0018] Step S3: sewage discharge;

[0019] Step S4: wet electrical power supply;

[0020] Step S5: Cleaning is completed.

[0021] As a preferred technical solution, the triggering method of step S2 specifically includes:

[0022] (1) Automatic cleaning trigger

[0023] Periodic cleaning: The controller automatically opens the solenoid valve and starts the spray nozzle for cleaning according to the set time interval; Concentration cleaning: When the sensor detects that the dust concentration in the flue gas exceeds the preset value, the controller automatically opens the solenoid valve and starts the spray nozzle for cleaning.

[0024] (2) Cleaning execution

[0025] The spray nozzle sprays cleaning fluid to flush the dust collecting plates and ionization device, and the cleaning fluid carries the dirt and is discharged through the drainage system.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] (1) Automatic cleaning: The automatic cleaning system can regularly or timely remove dust and dirt on the dust collecting plates and ionization devices, maintain the efficient operation of the dust collector, and ensure long-term and stable dust removal effect.

[0028] (2) Performance optimization: Regular cleaning can effectively remove dust accumulation, ensure that the equipment maintains efficient operation for a long time, and extend its service life.

[0029] (3) Improved safety: Automated operation reduces the number of manual cleanings and reduces the safety risks for operators, especially when dealing with environments with high temperature, high humidity, and corrosive gases.

[0030] (4) Reduced operating costs: Regular and timely cleaning and maintenance can effectively reduce equipment wear and corrosion, significantly reducing operating and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of an automatic flushing wet electrostatic precipitator of the present invention;

[0032] Figure 2 For the present invention Figure 1 Cross-sectional view at AA;

[0033] Figure 3 The present invention is a method flow chart of an automatic flushing wet dust removal method.

[0034] In the figure: 1. Shell; 2. Ionization device; 3. Dust collecting plate; 4. Spray nozzle; 5. Controller; 6. Sensor; 7. Solenoid valve; 8. Drainage system; 9. Spray pump. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1 The present invention provides a technical solution: an automatic flushing wet electrostatic precipitator, comprising: Figure 1 :Schematic diagram of the structure of automatic flushing wet electrostatic precipitator

[0037] Shell 1: It contains the ionization device, dust collecting plate and spray system.

[0038] Ionization device 2: installed in the shell and used for ionizing the gas.

[0039] Dust collecting plate 3: arranged around the ionization device, used to capture charged particles.

[0040] Spray nozzles 4: evenly distributed on the top and side walls of the shell, used for spraying cleaning liquid.

[0041] Controller 5: Connect the sprinkler system and sensor to control sprinkler operation.

[0042] Sensor 6: Installed near the air outlet, used to detect the dust concentration in the flue gas.

[0043] Solenoid valve 7: controls the inflow of cleaning fluid.

[0044] Drainage system 8: connected to the bottom of the shell, used to discharge the sewage generated by cleaning.

[0045] Among them, Figure 2 As shown, the ionization device is a plurality of vertically arranged electrodes, the dust collecting electrode plate is a hollow cylinder, the electrodes are inserted into the hollow cylinder, and the dust collecting electrode plate is clamped in the middle of the inner cavity of the shell.

[0046] See also Figure 3 , the working principle is as follows:

[0047] (1) Equipment power off:

[0048] (2) Equipment startup: Dust-laden gas enters from the air inlet, and after being ionized by the ionization device 2, the charged particles are captured on the dust collecting plate 3.

[0049] (3) Automatic cleaning trigger:

[0050] Regular cleaning: The controller 5 automatically opens the solenoid valve 7 and starts the spray nozzle 4 for cleaning according to the set time interval.

[0051] Concentration cleaning: When the sensor 6 detects that the dust concentration of the flue gas exceeds a preset value, the controller (5) automatically opens the solenoid valve 7 and starts the spray nozzle 4 for cleaning.

[0052] The specific cleaning process is as follows: the spray nozzle 4 sprays the cleaning liquid to wash the dust collecting plate 3 and the ionization device 2, and the cleaning liquid carries the dirt and is discharged through the drainage system 8.

[0053] End of cleaning: After reaching the preset cleaning time or cleaning effect, the controller 5 closes the solenoid valve 7 and stops spraying.

[0054] (4) System reset: drain all residual water and restore power supply to normal operation of the equipment.

[0055] Through the above design, this solution provides a wet electrostatic precipitator that can be automatically flushed, which greatly improves the cleaning efficiency and equipment operation stability, reduces manual operation and safety hazards, and has broad application prospects.

[0056] Compared with the existing technology, this solution has the following advantages:

[0057] (1) Automatic cleaning: The automatic cleaning system can regularly or timely remove dust and dirt on the dust collecting plates and ionization devices, maintain the efficient operation of the dust collector, and ensure long-term and stable dust removal effect.

[0058] (2) Performance optimization: Regular cleaning can effectively remove dust accumulation, ensure that the equipment maintains efficient operation for a long time, and extend its service life.

[0059] (3) Improved safety: Automated operation reduces the number of manual cleanings and reduces the safety risks for operators, especially when dealing with environments with high temperature, high humidity, and corrosive gases.

[0060] (4) Reduced operating costs: Regular and timely cleaning and maintenance can effectively reduce equipment wear and corrosion, significantly reducing operating and maintenance costs.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic flushing wet electrostatic precipitator, characterized in that: include: The housing (1) comprises an air inlet and an air outlet, the gas to be processed enters from the air inlet and is discharged from the air outlet after being dust-removed and purified; The ionization device (2) and the dust collecting plate (3) are both installed inside the housing (1) between the air inlet and the air outlet. The ionization device (2) is used to ionize the passing gas to generate charged particles; the dust collecting plate (3) is used to capture the charged particles. A spray system, fixed above the ionization device (2) and the dust collecting electrode plate (3), and used for cleaning the dust collecting electrode plate (3) and the ionization device (2); Automatic control system, used to automatically control the power supply and shutdown of the wet electrostatic precipitator and the start and stop of the spray system; A drainage system (8) is used to discharge the waste water generated by the spray system after cleaning the dust collecting plate (3) and the ionization device (2) out of the housing (1).

2. The automatic flushing wet electrostatic precipitator according to claim 1, characterized in that: The spray system comprises a spray pump (9) and a spray nozzle (4); the spray pump (9) is sprayed outside the housing (1) and connected to the spray nozzle (4) via a spray pipe; the spray nozzle (4) extends into the housing (1), and the spray nozzle (4) is located above the ionization device (2) and the dust collecting plate (3), so that the dust collecting plate (3) and the ionization device (2) can be cleaned by spraying cleaning liquid.

3. The automatic flushing wet electrostatic precipitator according to claim 1, characterized in that: The ionization device (2) is a plurality of vertically arranged electrodes, the dust collecting electrode plate (3) is a hollow cylinder, the electrodes are inserted into the hollow cylinder, and the dust collecting electrode plate (3) is snap-connected to the middle of the inner cavity of the shell (1).

4. The automatic flushing wet electrostatic precipitator according to claim 1, characterized in that: The automatic control system comprises a controller (5), a sensor (6) and a solenoid valve (7); the controller (5) is a PLC programmable controller; the solenoid valve (7) is arranged on a spray pipe between the spray pump (9) and the spray nozzle (4) and is used to control the on and off of the spray pump (9); the sensor (6) is arranged at the air outlet of the housing (1); the controller (5), the sensor (6) and the solenoid valve (7) are electrically connected to each other.

5. The automatic flushing wet electrostatic precipitator according to claim 1, characterized in that: The drainage system (8) comprises a drainage pipe and a drainage valve. The drainage pipe is connected to the bottom of the housing (1) and is provided with a drainage valve for controlling its opening and closing.

6. An automatic flushing wet dust removal method for removing particulate matter and droplets from industrial waste gas, characterized in that: An automatic flushing wet electrostatic precipitator as claimed in any one of claims 1 to 5 is used, which comprises the following steps: Step S1: Wet power off; Step S2: spray cleaning; Step S3: sewage discharge; Step S4: wet electrical power supply; Step S5: Cleaning is completed.

7. The automatic flushing wet dust removal method according to claim 6, characterized in that: The triggering method of the spray cleaning in step S2 specifically includes: (1) Automatic cleaning trigger Periodic cleaning: The controller automatically opens the solenoid valve and starts the spray nozzle for cleaning according to the set time interval; Concentration cleaning: When the sensor detects that the dust concentration in the flue gas exceeds the preset value, the controller automatically opens the solenoid valve and starts the spray nozzle for cleaning. (2) Cleaning execution The spray nozzle sprays cleaning fluid to flush the dust collecting plates and ionization device, and the cleaning fluid carries the dirt and is discharged through the drainage system.

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