What types of dust removal equipment are there?

(1) Mechanical dust removal equipment includes gravity dust removal equipment, inertial dust removal equipment and centrifugal dust removal equipment. (2) Washing and dust removal equipment includes water bath dust removal equipment, foam dust removal equipment, Venturi dust removal equipment and water film dust removal equipment. (3) Filter dust removal equipment includes bag dust removal equipment and granular layer dust removal equipment. (4) Electrostatic dust removal equipment. (5) Magnetic dust removal equipment. Mechanical inertial dust removal equipment is a dust removal equipment that makes dusty gas collide with baffle or change the direction of airflow sharply, and uses inertial force to separate and collect dust. Inertial dust removal equipment is also called inert dust removal equipment. Inertial dust removal equipment is divided into collision type and rotary type: the former is to install one or more baffles along the direction of airflow, and the dust-containing gas collides with the baffles to separate dust particles from the gas. Obviously, the higher the gas velocity before impacting the baffle, the lower it is after impacting, and the less dust it carries, the higher the dust removal efficiency. The latter is to make the dusty gas change direction many times and separate the dust in the process of turning. The smaller the radius of curvature of gas turns. The higher the steering speed, the higher the dust removal efficiency. The performance of inertial dust removal equipment varies with different structures. When the gas flow rate in the equipment is lower than 10m/S, the pressure loss is between 200- 1000Pa, and the dust removal efficiency is 50%-70%. In practical application, inertial dust removal equipment is generally placed in the first stage of multi-stage dust removal system to separate coarse dust. It is especially suitable for collecting dry dust with particle size larger than 10μm, but not for removing sticky dust and fibrous dust. Inertial dust removal equipment can also be used to separate droplets. At this time, it is required that the gas velocity in the equipment should be 1-2m/s ... Bio-nano-membrane dust removal equipment is a kind of dust removal equipment that has started to rise abroad in recent years. It adopts today's advanced biological nano-film technology. By spraying BME nano-film on the surface of the material, it can greatly inhibit the dust generated in the production and processing of the material. This kind of dust removal technology belongs to dust removal before dust emission, which has great advantages compared with other dust removal after production, so that dust emission can be effectively controlled in the whole process of material production. The dust generated in the crushing process is aggregated into fine materials and finally becomes a finished product, which can increase the output by 0.5%-3%. In addition, it can effectively prevent and control the pollution of PM2.5 and PM 10, which conforms to the national technical policy on environmental protection, energy saving and emission reduction. Compared with wet dust removal and bag dust removal, biological nano-membrane has no water pollution, no side effects on the environment, no influence on the quality of finished products and lower input cost. It is suitable for dust pollution control in mines, buildings, quarries, storage yards, ports, thermal power plants, steel mills, garbage recycling and other places. Nano-membrane dust removal has been applied in different countries overseas, and has been gradually applied in many provinces and cities in China. Washing and spraying dust removal equipment sprays water into mist through nozzles in the dust removal equipment. When the dust-containing flue gas passes through the fog space, the dust particles fall with the droplets due to the collision, interception and condensation between the dust particles and the droplets. This kind of dust removal equipment has simple structure, small resistance and convenient operation. Its outstanding advantage is that there are small gaps and holes in the dust removal equipment, which can treat flue gas with high dust concentration without causing blockage. Moreover, because the droplets sprayed by it are thicker, there is no need for a spray nozzle, and the operation is more reliable. The spray dust removal equipment can use circulating water until the particulate matter in the washing liquid reaches a fairly high level, thus greatly simplifying the water treatment facilities. Therefore, this kind of dust removal equipment is still adopted by many enterprises. Its disadvantage is that the equipment is relatively large, the ability to deal with fine dust is relatively low, and more water is needed, so it is often used to remove flue gas with large dust particle size and high dust concentration. Commonly used spray dust removal equipment can be divided into three structures according to the flow patterns of gas and liquid in the dust removal equipment: (1) downstream spray type, that is, gas and water droplets flow in the same direction. (2) Countercurrent injection, that is, liquid is injected against the airflow. (3) Cross-flow spraying, that is, spraying liquid in the direction perpendicular to the airflow. Aerosol and aerosol dust removal have changed the shortcomings of traditional spray dust removal equipment, such as large volume, low dust removal ability and large water consumption, and greatly improved the dust removal effect. Principle of system technology. Gravity dust suppression and water mist dust suppression are carried out, and liquid and gas are delivered to the nozzle through pressure, and the liquid and gas are mixed at the nozzle to generate fine atomized droplets, which are sprayed from the nozzle, thereby generating tiny water mist particles with the diameter of 1μm- 10μm, effectively adsorbing the dust suspended in the air, and quickly condensing into particles, and settling down through gravity to achieve the purposes of dust suppression and environmental improvement. The system has good atomization adjustment function, and the atomization device can be adjusted by changing the pressure of gas and liquid, so as to achieve the ideal ratio of gas flow to liquid flow and provide fine droplet size spray. Electrostatic precipitator and electrostatic precipitator equipment are necessary supporting equipment for thermal power plants. Its function is to remove the particulate dust from the flue gas discharged from stoves or oil-fired boilers, thus greatly reducing the amount of dust discharged into the atmosphere. This is an important environmental protection equipment to improve environmental pollution and air quality. Its working principle is that when the flue gas passes through the flue in front of the main structure of the electrostatic precipitator, the flue gas is positively charged, and then the flue gas enters the channel of the electrostatic precipitator with multi-layer cathode plates. Due to the mutual adsorption between the positively charged flue gas and the cathode plate, the particulate flue gas in the flue gas is adsorbed on the cathode plate and regularly hits the cathode plate, so that the flue gas with a certain thickness falls into the ash hopper under the structure of the electrostatic precipitator under the dual action of self-weight and vibration, thus achieving the purpose of removing the flue gas from the flue gas. Due to the high power of general units in thermal power plants, such as 600,000 kW units, the amount of coal burned per hour is about 1.80t, and the amount of smoke and dust can be imagined. Therefore, the structure of the corresponding electrostatic precipitator is relatively large. The cross-sectional size of the main structure of electrostatic precipitator used in general thermal power plants is about 25 ~ 40 10 ~ 15m. If the height of ash hopper of 6 m and the spatial density of tobacco transportation are added, the height of the whole electrostatic precipitator is above 35 m. For such a huge steel structure, not only the static and dynamic analysis under the action of dead weight, smoke load, wind load and earthquake load should be considered, but also the structural stability must be considered. The main structure of electrostatic precipitator is steel structure, all welded by section steel, and the outer surface is covered with skin (thin steel plate) and thermal insulation material, which is convenient for design, manufacture and installation. The structural design adopts layered form, each block is composed of several frame-type main beams, and the blocks are connected by main beams. In order to install the skin and insulation layer, the secondary beam is welded between the main beams. For such a huge structure, how to connect them according to physical objects will be very heavy in workload and number of units. According to the actual design requirements of the project and the main structure design of the electrostatic precipitator, the structural strength, structural stability and large displacement of the suspended cathode plate girder are emphatically studied. For the local area, the fatigue damage of the connection between cathode plate and main beam under long-term periodic impact is mainly investigated. Good frequency selection of soot shedding on cathode plate: The connection of structural surface skin (thin plate) with main beam and secondary beam under wind load and the reasonable selection of stiffness between them are also discussed. For more information, please consult Guangdong Senyu Pengteng Environmental Protection Technology Co., Ltd., thank you!