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What is the use of electrostatic dust removal equipment?


What is the use of electrostatic dust removal equipment? Electrostatic dedusting equipment is an indispensable auxiliary equipment for thermal power plants. Its role is to remove particulate smoke from the flue gas emitted from furnaces or oil-fired boilers, thereby greatly reducing the amount of flue gas emitted to the atmosphere. This is to improve environmental pollution and Important environmental protection equipment for air quality.


静电除尘设备是什么有什么用?


The working principle of the electrostatic precipitator 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 enters the passage of the electrostatic precipitator with a multilayer cathode plate. Due to the positively charged smoke and the cathode The plates are adsorbed to each other, and the particulate soot in the flue gas is adsorbed on the cathode, and the cathode plate is periodically impacted, so that a certain thickness of the soot falls into the ash hopper under the structure of the electrostatic precipitator under the dual effect of its own weight and vibration, thereby The purpose of removing soot from smoke.


As the power generation capacity of thermal power plants is usually relatively large, such as 600,000 kilowatts, the coal consumption per hour is about 180 t, and the amount of smoke and dust can be imagined. Therefore, the structure of the corresponding electrostatic precipitator is also relatively large. The cross-section of the main structure of the electrostatic precipitator of the thermal power plant is about 25 ~ 40 × 10 ~ 15m. If the height of the 6m ash bucket is increased and the height of the flue gas transportation space is above 35m, Such a large steel structure body should consider the static and dynamic analysis under independent load, soot load, wind load and seismic load. At the same time, the stability of the structure must also be considered.


静电除尘设备是什么有什么用?


What is the use of electrostatic dust removal equipment? The main structure of the dust removal equipment is a steel structure, all of which are welded by profile steel, and the outer surface is covered with a skin (thin steel plate) and insulation material, which is easy to design, manufacture and install.


The structural design adopts a layered form, each block is composed of multiple frame-type main beams, and the main beams are connected by the main beams. In order to install the skin and the insulation layer, the secondary beams are welded between the main beams. For such a large structure How to make a physical connection, the workload and the number of units are large.


According to the actual design requirements of the project and the design of the main structure of the electrostatic precipitator, the structural strength, structural stability and maximum displacement of the main beam of the suspended cathode plate were mainly studied. For local areas, the fatigue damage of the cathode plate and the main beam under long-term cyclic impact is mainly studied. Selection of the optimal frequency of soot dust on the cathode plate: between the skin (thin plate) of the structure surface and the primary and secondary beams under wind load Connection and the best choice between the two. In addition, the controller of the electrostatic precipitator is also an important part of it. The main function of the control of the precipitator is to regulate the operation of the electric field and control the charging of dust.


静电除尘设备是什么有什么用?


What is the use of electrostatic dust removal equipment? The advantages are as follows


1: High purification efficiency. The electrostatic precipitator can improve the dust removal efficiency by extending the length of the electric field, increasing the effective flow area of the electric field, improving the control quality of the controller, and conditioning the flue gas to achieve the required dust removal efficiency. For conventional electrostatic precipitators, the dust removal efficiency is generally above 99% during normal operation. Particle dust of 0.01 micron or more can be laid. Different operating parameters can be used in the design to meet the required purification efficiency.


2: Small resistance loss, small equipment resistance and low total energy consumption. The total energy consumption of the electrostatic precipitator is composed of the energy consumption of the equipment resistance, power supply device, heating device, vibration and auxiliary equipment (ash discharge motor, gasification fan, etc.). The resistance loss of the electrostatic precipitator is generally 150 ~ 300 pa, which is about 1/5 of the bag type dust collector, which accounts for a small proportion of the total energy consumption. The flue gas volume typically used to process the circuit / h requires 0.5% of electrical energy. 2-0.8 kWh. Generally below 20m water column, compared with the cyclone dust collector, even considering the power consumption of the power supply device and the rapping mechanism, the total power consumption is relatively small.


3: Large amount of flue gas treatment. Since the structure of the electrostatic precipitator is easily modularized, the device can be enlarged. The maximum electric field cross-section of a single electrostatic precipitator reaches 400 square meters.


4: The allowable working temperature is high. For example, the allowable operating temperature of shw b type circuit dust collector is preferably 250 ℃, and other types can reach 350 ~ 400 ℃ or higher.


5: Automatic operation control can be fully realized.


What is the use of electrostatic dust removal equipment? 还为不同客户提供设计、制造、安装等一系列服务.。 The products are widely applicable to the pollution control of dust working places in related industries such as machinery manufacturing, metallurgy and chemical industry, foundry, food processing, refractory materials, cement, ceramics, etc. At the same time, Yuchen dust removal equipment manufacturers also provide design, manufacturing, and installation for different customers Series of services ...

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