Technology Introduction: Grate present serious dust pollution in the production process, there are new grate in the tail set top suction ventilation dust, but obviously can not control the smoke. The first is the high-temperature dust and gas in the grate sections on both sides of the slit drum stem leakage at high temperature where the heat and the dust and gas pressurized large grate in the chain plate along the upper edge of the gap at the bellows have plenty of hot air to escape the high temperature dust; chain plate in the upper grate, after the blast dry air blown under positive pressure sealed box from the bottom, the air very quickly, in a closed box side of the top of the top cover can not be provided here dust trapping gases, so that the dust concentration job seriously overweight. Our first implementation in Angang grate transformation, combined with the specific circumstances of the development of this set of Dust removal technology to overcome the grate Dust removal tail blank, and to promote the country, has been unanimously praised the owners.