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最近有些工业部门成功地解决了许多有关控制分散源散出有害物的通风难题,所谓分散源就是大部分表面散发有害物,并且其规格尺寸很大,例如,长度为10至1500米的运输通廊;处理量为2000米~3/小时的板式给料机;4×6×5米的元盘式真空过滤机;散状物料的矿槽,其卸料线长度为25至500米,卸料线宽度为一台、两台或多台有自动卸料车的皮带输送机。迄今为止,对上述问题试图按处理集中有害物源采用的传统手法(采用局部排气罩、吹吸气罩、采用带空气幕的吸气罩兼向车间内工作区送风)来解决时,效果往往很差,因此企业里分散的有害物源成为当前污染车间空气
Recently, some industrial sectors have succeeded in solving many problems related to controlling the ventilation of dispersed sources to release harmful substances. The so-called dispersion source is most of the surface emitting harmful substances, and its size is very large, for example, a length of 10 to 1500 meters Corridor; Plate feeder with 2000m~3/hr capacity; 4x6x5m vacuum plate filter; Material tank with bulk material, 25~500m length of discharge line, unloading The feed line width is one, two or more belt conveyors with automatic unloading cars. So far, the above problems have been solved by attempting to deal with the traditional methods used to treat concentrated sources of pollutants (local exhaust hoods, suction hoods, suction hoods with air curtains, and air supply to work areas in the workshop). The effect is often very poor, so the harmful sources scattered in the company become the current polluting workshop air