Industrial waste gas desulfurization and dust removal integrated equipment
By integrating the filter dust removal and electrostatic precipitator with the desulfurization reaction tower, the problem that existing equipment is difficult to desulfurize and remove dust efficiently at the same time is solved, achieving efficient and energy-saving exhaust gas purification effects and reducing equipment footprint and operating costs.
Patent Information
- Application Number
- CN202422783779.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-11-15
AI Technical Summary
Existing industrial waste gas treatment equipment is difficult to achieve desulfurization and dust removal simultaneously and efficiently, and has problems such as large equipment footprint, complex connections, and high operating costs.
An integrated industrial waste gas desulfurization and dust removal equipment is designed, which integrates filter dust removal, electrostatic precipitator and desulfurization reaction tower. Honeycomb filler and spray device are used, combined with high-voltage power supply and cleaning system to ensure that the contact time between gas and electric field is long enough. Honeycomb filler and high-efficiency desulfurizer are circulated, and gas detection and slag discharge devices are provided.
It achieves efficient integration of desulfurization and dust removal functions, reduces equipment footprint and connection complexity, lowers operating costs, and improves purification effects and environmental protection.
Smart Images
Figure CN223337119U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to integrated equipment for desulfurization and dust removal of industrial waste gas. Background Art
[0002] With the acceleration of industrialization, industrial waste gas emissions pose a serious environmental challenge. In particular, waste gas containing sulfur dioxide and particulate matter, if discharged untreated, can seriously pollute the air and affect human health. Therefore, the development of efficient and energy-saving industrial waste gas treatment equipment, particularly equipment that can simultaneously desulfurize and remove dust from waste gas, is of great practical significance. Utility Model Content
[0003] The purpose of the utility model is to solve the above deficiencies in the prior art and to provide an integrated desulfurization and dust removal device for industrial waste gas.
[0004] An integrated desulfurization and dust removal device for industrial waste gas comprises an exhaust gas inlet pipe connected to a dust removal mechanism, the dust removal mechanism comprises a filter dust removal device and an electrostatic precipitator, the filter dust removal device comprises a multi-layer metal filter with apertures ranging from large to small, the electrostatic precipitator comprises a high-voltage power supply, the high-voltage power supply is connected to a discharge electrode, the discharge electrode is placed above the entire electrostatic precipitator, a dust collecting electrode is provided below the discharge electrode, a desulfurization reaction tower is provided behind the dust removal mechanism, a reaction filler is provided in the desulfurization reaction tower, a plurality of spray devices are provided on the top of the desulfurization reaction tower, the spray devices are connected to a desulfurization liquid circulation system, the desulfurization liquid circulation system comprises a liquid pump, a liquid storage tank and a waste liquid recovery tank, a gas outlet pipe is also provided on the desulfurization reaction tower, and a slag discharge device is provided at the bottom of the desulfurization reaction tower.
[0005] As a further improvement, an air flow channel is provided between the discharge electrode and the dust collecting electrode, and the flow direction of the air flow is perpendicular to the electrode to ensure that the contact time between the gas and the electric field is long enough. The design of the air flow channel ensures that the gas flows evenly and will not affect the dust removal effect due to overly sharp bends or blockages.
[0006] As a further improvement, the electrostatic precipitator includes a cleaning system, which includes a vibrating device, a scraper device or a back-blowing device. Since solid particles in the exhaust gas will be deposited on the dust collecting electrode, they need to be cleaned regularly. The vibrating device vibrates the dust collecting electrode to remove the attached dust, the scraper device uses a scraper to scrape off the particles deposited on the dust collecting electrode, and the back-blowing device blows the accumulated dust off the electrode through reverse airflow.
[0007] As a further improvement, the reaction filler is a honeycomb filler, which is made of ceramic, metal or plastic materials, shaped like a honeycomb, with a large surface area and good airflow channels. It is widely used in desulfurization towers, exhaust gas purification devices, etc., and exhibits better performance especially when processing high-flow gases.
[0008] As a further improvement, a gas detector is provided at the gas outlet pipe for monitoring the sulfur dioxide concentration and particulate matter concentration in the exhaust gas.
[0009] As a further improvement, the slag discharge device includes a slag discharge pipe, a sliding valve and a slag storage container, which are used to regularly remove sludge or solid particles deposited inside the equipment, such as the products after the desulfurization reaction, calcium sulfate, dust, etc.
[0010] Beneficial effects:
[0011] Integrated design: The integrated design of desulfurization and dust removal functions reduces the equipment footprint and the complex connections between equipment, reduces construction costs, and improves the overall operating efficiency of the system.
[0012] High-efficiency dust removal: The combination of high-efficiency filters and electrostatic precipitators can not only remove particulate matter, but also meet the treatment requirements of different pollutants and improve the exhaust gas purification effect.
[0013] Energy saving and environmental protection: The efficient recycling of desulfurizer reduces operating costs and reduces secondary pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the overall structure of an integrated industrial waste gas desulfurization and dust removal equipment;
[0015] 1. Exhaust gas inlet pipe 2. Dust removal mechanism 21. Filter dust removal device 22. Electrostatic precipitator 3. Desulfurization reaction tower 31. Reaction filler 32. Spray device 4. Desulfurization liquid circulation system 41. Liquid pump 42. Liquid storage tank 43. Waste liquid recovery tank 5. Gas outlet pipe 6. Slag discharge device DETAILED DESCRIPTION
[0016] 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.
[0017] like Figure 1 As shown, an integrated desulfurization and dust removal equipment for industrial waste gas includes a waste gas inlet pipe 1, a dust removal mechanism 2, a filter dust removal device 21, an electrostatic precipitator 22, a desulfurization reaction tower 3, a reaction filler 31, a spray device 32, a desulfurization liquid circulation system 4, a liquid pump 41, a liquid storage tank 42, a waste liquid recovery tank 43, a gas outlet pipe 5 and a slag discharge device 6.
[0018] An integrated desulfurization and dust removal device for industrial waste gas comprises an exhaust gas inlet pipe 1, the exhaust gas inlet pipe 1 is connected to a dust removal mechanism 2, the dust removal mechanism 2 comprises a filter dust removal device 21 and an electrostatic precipitator 22, the filter dust removal device 21 comprises a multi-layer metal filter with apertures ranging from large to small, the electrostatic precipitator 22 comprises a high-voltage power supply, the high-voltage power supply is connected to a discharge electrode, the discharge electrode is placed above the entire electrostatic precipitator 22, a dust collecting electrode is provided below the discharge electrode, an air flow channel is provided between the discharge electrode and the dust collecting electrode, the flow direction of the air flow is perpendicular to the electrode to ensure that the contact time between the gas and the electric field is long enough, the design of the air flow channel ensures that the gas flows evenly and the dust removal effect is not affected by excessively sharp bends or blockages, the electrostatic precipitator 22 comprises a cleaning system, the cleaning system comprises a vibrating device, a scraper device or a back-blowing device, since solid particles in the exhaust gas will be deposited on the dust collecting electrode, it needs to be cleaned regularly, the vibrating device removes the attached dust by vibrating the dust collecting electrode, and the scraper device uses a scraper to scrape off the particles deposited on the dust collecting electrode, The back-blowing device blows away the accumulated dust from the electrode through the reverse airflow. A desulfurization reaction tower 3 is provided after the dust removal mechanism 2. A reaction filler 31 is provided in the desulfurization reaction tower 3. The reaction filler 31 is a honeycomb filler. The honeycomb filler is made of ceramic, metal or plastic material and is shaped like a honeycomb. It has a large surface area and a good airflow channel. It is widely used in desulfurization towers, exhaust gas purification devices, etc., and shows good performance in processing high-flow gas. A plurality of spray devices 32 are provided on the top of the desulfurization reaction tower 3. The spray device 32 is connected to the desulfurization tower 3. The desulfurization reaction tower 3 is connected to the liquid circulation system 4, and the desulfurization liquid circulation system 4 includes a liquid pump 41, a liquid storage tank 42 and a waste liquid recovery tank 43. A gas outlet pipe 5 is also provided on the desulfurization reaction tower 3. A gas detector is provided at the gas outlet pipe 5 for monitoring the sulfur dioxide concentration and particulate matter concentration in the exhaust gas. A slag discharge device 6 is provided at the bottom of the desulfurization reaction tower 3. The slag discharge device 6 includes a slag discharge pipe, a sliding valve and a slag storage container, which is used to regularly remove sludge or solid particles deposited inside the equipment, such as the products after the desulfurization reaction, calcium sulfate, dust, etc.
[0019] 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. An integrated equipment for desulfurization and dust removal of industrial waste gas, characterized in that: It includes an exhaust gas inlet pipe, which is connected to a dust removal mechanism. The dust removal mechanism includes a filter dust removal device and an electrostatic precipitator. The filter dust removal device includes a multi-layer metal filter with apertures ranging from large to small. The electrostatic precipitator includes a high-voltage power supply. The high-voltage power supply is connected to a discharge electrode. The discharge electrode is placed above the entire electrostatic precipitator. A dust collecting electrode is provided below the discharge electrode. A desulfurization reaction tower is provided after the dust removal mechanism. Reaction fillers are provided in the desulfurization reaction tower. Several spray devices are provided on the top of the desulfurization reaction tower. The spray devices are connected to the desulfurization liquid circulation system. The desulfurization liquid circulation system includes a liquid pump, a liquid storage tank and a waste liquid recovery tank. A gas outlet pipe is also provided on the desulfurization reaction tower, and a slag discharge device is provided at the bottom of the desulfurization reaction tower.
2. The integrated industrial waste gas desulfurization and dust removal equipment according to claim 1, characterized in that: An airflow channel is provided between the discharge electrode and the dust collecting electrode, and the flow direction of the airflow is perpendicular to the electrodes.
3. The integrated industrial waste gas desulfurization and dust removal equipment according to claim 1 is characterized in that: The electrostatic precipitator includes a dust cleaning system, which includes a vibration device, a scraper device or a back-blowing device.
4. The integrated industrial waste gas desulfurization and dust removal equipment according to claim 1 is characterized in that: The reactive filler is a honeycomb filler, which is made of ceramic, metal or plastic material.
5. The integrated industrial waste gas desulfurization and dust removal equipment according to claim 1 is characterized in that: A gas detector is provided at the gas outlet pipe to monitor the concentration of sulfur dioxide and particulate matter in the exhaust gas.
6. The integrated industrial waste gas desulfurization and dust removal equipment according to claim 1, characterized in that: The slag discharge device comprises a slag discharge pipeline, a sliding valve and a slag storage container.