Multifunctional waste gas dust falling and purifying device

Abstract

The utility model discloses a multifunctional waste gas dust fall and purification device which comprises a pretreatment unit, an electrostatic dust collection unit, an activated carbon adsorption unit, a chemical washing unit, an HEPA (High Efficiency Particulate Air) filtering unit and a heat energy recovery system, waste gas passes through the pretreatment unit and then enters a heat exchanger of the heat energy recovery system, after the waste gas is in indirect contact with a cooling medium in the heat exchanger for heat exchange, the waste gas enters the electrostatic dust collection unit, and the electrostatic dust collection unit comprises a discharge electrode, a collection electrode and a direct-current power source. The chemical washing unit comprises a reaction chamber, a nozzle used for spraying chemical agents is arranged in the reaction chamber, the HEPA filtering unit comprises a frame, an HEPA filtering medium is arranged in the frame and folded into a wrinkle shape, the space between the HEPA filtering medium and the frame is sealed through rubber or silica gel, and a supporting net is arranged on the outer side of the HEPA filtering medium.

Description

Technical Field

[0001] The utility model relates to a multifunctional waste gas dust reduction and purification device. Background Art

[0002] Exhaust gas treatment devices in existing technologies often only have good treatment effects on a certain type of pollutants. For example, dust collectors mainly target solid particles, while chemical scrubbers are mainly used to treat gaseous pollutants. These devices often cannot comprehensively treat multiple pollutants, and the equipment has high operating costs and complex maintenance. Utility Model Content

[0003] The purpose of the utility model is to solve the above deficiencies in the prior art and to provide a multifunctional waste gas dust reduction and purification device.

[0004] A multifunctional exhaust gas dust reduction and purification device includes a pretreatment unit, an electrostatic dust removal unit, an activated carbon adsorption unit, a chemical washing unit, a HEPA filter unit and a heat recovery system. The pretreatment unit includes a large particle filter and a cyclone separator. After passing through the pretreatment unit, the exhaust gas enters the heat exchanger of the heat recovery system. After the exhaust gas indirectly contacts the cooling medium in the heat exchanger for heat exchange, the exhaust gas enters the electrostatic dust removal unit. The electrostatic dust removal unit includes a discharge electrode, a collecting electrode and a DC power supply. The activated carbon adsorption unit is used to adsorb organic volatiles and harmful gases. The chemical washing unit includes a reaction chamber. The reaction chamber is provided with a nozzle for spraying chemical agents. The HEPA filter unit includes a frame. HEPA filter medium is provided in the frame. The HEPA filter medium is folded into pleats. Rubber or silicone is used to seal the HEPA filter medium and the frame. A support net is provided on the outside of the HEPA filter medium.

[0005] As a further improvement, a mechanical vibrator is provided on the collecting electrode, and a compressed air nozzle is provided on the side of the collecting electrode.

[0006] As a further improvement, the heat exchanger is a plate heat exchanger, a shell and tube heat exchanger or a rotary heat wheel.

[0007] As a further improvement, the activated carbon adsorption unit includes a detachable shell, the shell is filled with activated carbon filler, and the activated carbon filler is granular or fixed bed activated carbon.

[0008] As a further improvement, the activated carbon adsorption unit includes a regeneration device to restore the adsorption capacity of the activated carbon through thermal regeneration or chemical regeneration.

[0009] As a further improvement, the cyclone separator includes a gas inlet, a rotating cylinder, a dust collecting hopper and a gas discharge port, and the gas inlet has a flow direction along the tangential direction of the rotating cylinder.

[0010] Beneficial effects:

[0011] High-efficiency air purification: It can capture particles with a diameter of 0.3 microns, effectively remove dust, pollen, mold, bacteria and viruses, and improve indoor air quality.

[0012] Reduce Allergies and Respiratory Problems: Effectively removes allergens and harmful particles from the air, alleviating allergy symptoms and improving the quality of life for asthma patients.

[0013] Improve safety in working and living environments: Prevent the spread of harmful microorganisms and contaminants in medical facilities, laboratories, and high-risk industrial environments to protect the health of workers.

[0014] Reduce indoor air pollution: Through continuous purification, the concentration of volatile organic compounds and other pollutants in the air is reduced, helping to create a healthier living and working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a multifunctional exhaust gas dust reduction and purification device;

[0016] 1. Pretreatment unit 11. Large particle filter 12. Cyclone separator 2. Electrostatic dust removal unit 3. Activated carbon adsorption unit 4. Chemical washing unit 5. HEPA filtration unit 6. Heat recovery system DETAILED DESCRIPTION

[0017] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0018] like Figure 1 As shown, a multifunctional exhaust gas dust reduction and purification device includes a pretreatment unit 1, a large particle filter 11, a cyclone separator 12, an electrostatic dust removal unit 2, an activated carbon adsorption unit 3, a chemical washing unit 4, a HEPA filter unit 5 and a heat recovery system 6.

[0019] A multifunctional waste gas dust reduction and purification device, comprising a pretreatment unit 1, an electrostatic dust removal unit 2, an activated carbon adsorption unit 3, a chemical washing unit 4, a HEPA filter unit 5 and a heat recovery system 6, wherein the pretreatment unit 1 comprises a large particle filter 11 and a cyclone separator 12, wherein the cyclone separator 12 comprises a gas inlet, a rotating cylinder, a dust collecting hopper and a gas discharge port, wherein the flow direction of the gas inlet is along the tangential direction of the rotating cylinder, and the waste gas enters the heat exchanger of the heat recovery system 6 after passing through the pretreatment unit 1, wherein the heat exchanger is a plate heat exchanger, a shell and tube heat exchanger or a rotary heat wheel, and after the waste gas is indirectly contacted with the cooling medium in the heat exchanger for heat exchange, the waste gas enters the electrostatic dust removal unit 2, and the electrostatic dust removal unit 2 comprises a discharge electrode, a collecting electrode and a DC power supply. The collecting electrode is provided with a mechanical vibrator, and a compressed air nozzle is provided on the side of the collecting electrode. The activated carbon adsorption unit 3 is used to adsorb organic volatiles and harmful gases. The activated carbon adsorption unit 3 includes a detachable shell, and the shell is filled with activated carbon filler. The activated carbon filler is granular or fixed bed activated carbon. The activated carbon adsorption unit 3 includes a regeneration device to restore the adsorption capacity of the activated carbon by thermal regeneration or chemical regeneration. The chemical washing unit 4 includes a reaction chamber, and the reaction chamber is provided with a nozzle for spraying chemical agents. The HEPA filter unit 5 includes a frame, and a HEPA filter medium is provided in the frame. The HEPA filter medium is folded into pleats, and the HEPA filter medium and the frame are sealed with rubber or silicone. A support net is provided on the outside of the HEPA filter medium.

[0020] The pre-treatment unit 1 is provided with a large particle filter 11 to initially intercept large particles and substances; the cyclone separator 12 further removes heavier particles through physical centrifugal force.

[0021] The electrostatic precipitator unit 2 uses the force generated by the high voltage electric field to attract charged particles, and the electrodes are cleaned regularly to maintain the dust removal efficiency.

[0022] The activated carbon adsorption unit 3 adopts a multi-layer activated carbon structure design, and different layers of activated carbon specifically adsorb different types of organic volatiles and harmful gases.

[0023] The chemical scrubbing unit 4 is equipped with an adjustable nozzle design and reaction chamber to provide customized chemical treatment for specific chemical pollutants; the use of renewable chemical solutions reduces operating costs.

[0024] The HEPA filter unit 5 uses an ultra-fine filter membrane and a folding design to increase the filter area and improve the capture efficiency of tiny particles.

[0025] The heat recovery system 6 adopts a high-efficiency heat exchanger design, which can recover a large amount of heat energy from the exhaust gas and use it for preheating the intake air or heating.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multifunctional waste gas dust reduction and purification device, characterized in that: It includes a pretreatment unit, an electrostatic dust removal unit, an activated carbon adsorption unit, a chemical washing unit, a HEPA filter unit and a heat recovery system. The pretreatment unit includes a large particle filter and a cyclone separator. After passing through the pretreatment unit, the exhaust gas enters the heat exchanger of the heat recovery system. After the exhaust gas indirectly contacts the cooling medium in the heat exchanger for heat exchange, the exhaust gas enters the electrostatic dust removal unit. The electrostatic dust removal unit includes a discharge electrode, a collecting electrode and a DC power supply. The activated carbon adsorption unit is used to adsorb organic volatiles and harmful gases. The chemical washing unit includes a reaction chamber. The reaction chamber is provided with a nozzle for spraying chemical agents. The HEPA filter unit includes a frame. A HEPA filter medium is provided in the frame. The HEPA filter medium is folded into pleats. Rubber or silicone is used to seal the HEPA filter medium and the frame. A support net is provided on the outside of the HEPA filter medium.

2. A multifunctional exhaust gas dust reduction and purification device according to claim 1, characterized in that: The collecting electrode is provided with a mechanical vibrator, and the side of the collecting electrode is provided with a compressed air nozzle.

3. A multifunctional exhaust gas dust reduction and purification device according to claim 1, characterized in that: The heat exchanger is a plate heat exchanger, a shell and tube heat exchanger or a rotary heat wheel.

4. A multifunctional exhaust gas dust reduction and purification device according to claim 1, characterized in that: The activated carbon adsorption unit comprises a detachable shell, the shell is filled with activated carbon filler, and the activated carbon filler is granular or fixed bed activated carbon.

5. The multifunctional exhaust gas dust reduction and purification device according to claim 1, characterized in that: The activated carbon adsorption unit includes a regeneration device to restore the adsorption capacity of the activated carbon through thermal regeneration or chemical regeneration.

6. The multifunctional exhaust gas dust reduction and purification device according to claim 1, characterized in that: The cyclone separator comprises a gas inlet, a rotating cylinder, a dust collecting hopper and a gas discharge port, and the gas inlet has a flow direction along the tangential direction of the rotating cylinder.

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