In this paper we have discussed the causes and harms of large amaunt of dust brought about by circular knitting machines in wearing and analysed dedusting methods of a variety of typical circular knitting machines adopted in china.

This paper introduces the structural style, sand-stone proportioning system, drying method, dedusting method, and erecting location of storage bin, etc.

Technical and economic comparison of ESP and bag filter for boiler gas of thermal power plants;

This paper introduces the gener al development and basic principle of bag filter removal and the latest technolo gies of filter collection are also discussed concerning the key properties of the filter media.

In order to make the atmosphere contamination from rubbish incinerator under control effectively, the Standard for pollution control on the municipal solid waste incineration (GB18485-2001) stipulates that the bag filter must be used as the device for dust separation of rubbish incinerator.

In order to improve the economic and social benefit of the enterprise,this article puts forward the scheme of technical modification for wet dedusting in boiler from the point of view of the satisfying pro-duction and lowering the cost.

According to the problem of the short life of impellers manufactured by the traditional methods used in the wet dedusting system, whether using the aerofoil blades or the single plate blades, the solution of adopting aerofoil blades treated with foaming is pointed out in this paper.