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气浮机

概述 DESCRIPTION

袋式除尘器是一种干式滤尘装置。滤料使用一段时间后,由于筛滤、碰撞、滞留、扩散、静电等效应,滤袋表面积聚了一层粉尘,这层粉尘称为初层,在此以后的运动过程中,初层成了滤料的主要过滤层,依靠初层的作用,网孔较大的滤料也能获得较高的过滤效率。随着粉尘在滤料表面的积聚,除尘器的效率和阻力都相应的增加,当滤料两侧的压力差很大时,会把有些已附着在滤料上的细小尘粒挤压过去,使除尘器效率下降。另外,除尘器的阻力过高会使除尘系统的风量显著下降。因此,除尘器的阻力达到一定数值后,要及时清灰。清灰时不能破坏初层,以免效率下降。

Bag type dust collector is a dry dust filter device. Filter used for a period of time, due to the sieve, collision, detention, diffusion and electrostatic effect, bag table area accumulate a layer of dust, this layer of dust known as the first layer, after that, the beginning level is the main filtering layer, relying on the role of initial layer, larger mesh filter can obtain a higher filtration efficiency. With the accumulation of dust on the surface of filter material, the efficiency and resistance of the filter are increased. When the pressure difference between the two sides of the filter media is very big, some of them have been attached to the filter material. In addition, the resistance of the dust collector will make a significant drop in the air quantity of the dust removal system. Therefore, the resistance of the dust collector to reach a certain value, it is time to clear the dust. Ash can not destroy the initial layer, so as to avoid the efficiency decline.

工作原理 WORKING PRINCIPLE

过滤式除尘器是指含尘烟气孔通过过滤层时,气流中的尘粒被滤层阻截捕集下来,从而实现气固分离的设备。过滤式除尘装置包括袋式除尘器和颗粒层除尘器,前者通常利用有机纤维或无机纤维织物做成的滤袋作过滤层,而后者的过滤层多

采用不同粒径的颗粒,如石英砂、河砂、陶粒、矿渣等组成。伴着粉末重复的附着于滤袋外表面,粉末层不断的增厚,布袋除尘器阻力值也随之增大;脉冲阀膜片发出指令,左右淹没时脉冲阀开启,高压气包内的压缩空气通了,如果没有灰尘了或是小到一定的程度了,机械清灰工作会停止工作。

Filter type dust collector is a equipment when smoke air hole containing dust through filter layer, air dust particles are intercepted by filter layer, so as to realize the gassolid separation .

Filter dust removal device comprises a bag type dust collector and granular layer dust removal, the former usually use organic fiber and inorganic fiber fabric made ofbag filter layer, filter layer and the latter with different diameter particles, such as quartz sand, river sand, ceramsite, slag, etc. With powder repeated attached to theouter surface of the bag, powder layer continuous thickening, bag type dust collector resistance value increases; pulse valve diaphragm issued a directive, aroundsubmerged pulse valve is open, compressed air of high pressure gas package get through , if there is no dust or it is small to a certain extent , mechanical cleaning work will stop .



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