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Ningxia Power Plant's special 20-ton pulverized coal boiler desulfurization and dust collector adopts the principles of inertial collision, condensation and centrifugal force. Under the action of the induced draft fan, the flue gas falls from a certain height, impacts the liquid surface at high speed, forms a water mist, and most of the particles sink into In water, under the action of the dust collector diverter, the atomizing air flow rises rapidly, and the droplets further collide and agglomerate to form a water-ash mixture. The water-ash mixture passes through the cyclone impeller and is separated by steam and water, so that its desulfurization, dust removal and dewatering effect are fully achieved. .
Ningxia Power Plant dedicated 20 tons of pulverized coal boiler desulfurization dust collector also has a unique adjustable wind cap, can be arbitrarily adjusted in the upper part of the device to adapt to various sizes of air flow, thereby controlling the flow rate of flue gas has ensured its normal operation, no matter how much the role of the induced draft fan No water will be carried underneath, and its supporting facilities will be corroded, which will not only reduce losses but also reduce maintenance and repair costs.
According to the dust characteristics of a 20-ton pulverized coal-fired boiler dedicated to Ningxia Power Plant, the selection of power plant dust collectors is based on the following points:
(1) Treatment volume (Q)
The processing air volume refers to the volume of gas that the dust removal equipment can purify in a unit of time. The unit is cubic meters per hour (m3/h) or standard cubic meters per hour (Nm3/h), which is one of the most important factors in the design of power plant dust collectors.
(2) Operating temperature For the power plant = precipitator, the operating temperature depends on two factors. The first is the highest temperature of the filter material, and the second is that the gas temperature must be above the dew point temperature.
(3) The inlet dust concentration is the inlet dust concentration, which is determined by the process of the dust point. When designing or selecting a power plant dust collector, it is another important factor after the air volume.
(4) Export dust concentration The export dust concentration refers to the emission concentration of the power plant dust collector. The indication method is the same as the inlet dust concentration. The size of the export dust concentration should be based on the local environmental protection requirements or the user's requirements, and the emission of the power plant dust collector. The concentration can generally reach 50mg/Nm3 or less.
The following article on “Selection principle of desulfurization and deduster for 20-ton pulverized coal boilers in Ningxia Power Plant†was clarified by Botou City Chunhui Environmental Protection Equipment Co., Ltd., and will not be reproduced. If you want to know more about the selection of dust remover, you can call our professional The manager of the person's phone is consulting, qq 3406358895. We have many years of experience in the selection of precipitator equipment, and will design, produce, install, and after-sales professional solutions based on your operating conditions.