The single bag filter can be used in large quantities in the cement industry because single bag filter has the following advantages:
First, the cement plant has many dust spots, and it is very scattered, so that the overall treatment will cause a lot of waste, so a small single bag filter will be born, applied to all scattered dust points, can be a stand-alone The assembly saves costs and can also take advantage of the advantages of a small stand-alone bag filter. The small single bag filter has the advantages of small volume, large air volume, compact structure, convenient and reliable use, etc. The dust removed from the dust filter can be directly excluded from the warehouse, and can also directly fall on the belt.
Second, because the vertical kiln adopts a single bag filter, its emission concentration meets the requirements of environmental protection, and is not affected by the specific resistance of dust.
Third, the single bag filter dust removal is generally used in pulse jet cleaning, this method is a better way to clean. Dust-laden gas enters the lower box of the dust collector. Under the action of the baffle, the dust with a larger weight directly falls into the ash bucket. The finer dust drifts along with the air flow. When the bag is encountered, it is Blocked in the outside of the dust bag, the clean air is led away by the fan in the middle of the bag, and the dust is discharged.
Fourth, for single or a few points dust, and places where the dust point is not often fixed (such as welding). Dimensions can be customized according to different needs, customers can use without having to install too much equipment. Due to the site constraints, dust removal at multiple points can also be used with a single pulse dust removal device.
The single bag type dust collector of the cement plant adopts the ventilation method of the lower air inlet and the upper air, and the filter bag is hung on the upper flower board, and the dust is removed by shaking the rocker mechanism. It is mainly used for dust removal from local dust sources. If two or more single-bag filter units are controlled by a control cabinet, each single unit becomes a single filter unit and becomes a combined dust collector, which can effectively control the dust emission. The specific implementation method is:
Remove the rapping mechanism, add a pulse valve, solenoid valve, a set of poppet valve, and an upper box for each single machine, and use the pulse deashing in the chamber to solve the drawbacks of the original dust collector cleaning system.
The use of a new filter material (polyester needle felt), increase the flower board, skeleton, increase the filter area, improve the processing capacity of the original dust collector.
This type of bag filter removes the original backfed ash with pulsed ash cleaning, which overcomes the drawbacks of frequent failures and incomplete cleaning of the dedusting mechanism of the original dedusting device; it transforms several stand-alone units into a combined chamber pulse cleaning dedusting device. , Not only to improve the processing capacity of the original dust collector, but also to control the emission concentration below 50mg/Nm3, to meet the current strict environmental protection requirements of the country.
(Addtime：2018-3-9)
