Fused magnesite melting lump cleaning unshelling device and use method

Abstract

The invention discloses a fused magnesite melting lump cleaning unshelling device. The fused magnesite melting lump cleaning unshelling device is composed of a seal dust removal room, an underburnt material output system and an unshelling system. The seal dust removal room comprises a fixed dustproof room built on a ground where a rail is laid, two seal doors and a dust removal opening are formedin the dust removal room, the underburnt material output system comprises an underburnt material hopper mounted on the bottom of the dust removal room, the lower portion of the hopper is provided witha belt conveyor, a seal trench for mounting of the conveyor and a trench dust removal opening are included, the unshelling system comprises a lifting disc allowing a crane to carry out lifting, two hooks below the lifting disc, a rigid telescopic joint which is fixedly mounted between the lifting disc and a seal disc and is of a multi-layer cylinder structure, and a seal pad fixedly mounted on the lower face of the seal disc, a melting lump unshelling process is in the full seal space, dust can be completely sucked away instantly, underburnt materials are cleaned in time, smoke can be effectively controlled, the occupied area is small, the advantages of being simple in structure, easy to implement, low in cost and good in dust removal efficiency are achieved, the operation environment meets the environment requirements, and the clean production aim is achieved.

Description

technical field [0001] The invention relates to the field of electric arc furnace flue gas and dust pollution control, in particular to a device for cleaning and lifting an electric fused magnesia fused lump and a method for using it. Background technique [0002] Fused magnesia is made of high-quality natural magnesite or high-purity light burnt magnesia pellets or low-grade magnesite concentrate powder pellets after flotation purification as raw materials, and is heated and melted in a three-phase electric arc furnace at about 2800°C After cooling, the molten lump is formed, and the molten lump is obtained after crushing and sorting. Ordinary fused magnesia is a good basic refractory material, and large crystal fused magnesia is an excellent high-temperature electrical insulation material. Fused magnesia is fired in an electric arc furnace. The furnace shell is welded into a cylindrical structure by steel plates. In order to ensure that the furnace shell will not be overh...

AI Technical Summary

Problems solved by technology

At present, most manufacturers have not done any treatment, and the flue gas and dust spread everywhere, relying on natural ventilation to spread out of the factory building, resulting in a bad environment in the workshop, and the smoke and dust in the factory area seriously exceeded the standard, polluting the external ecological environment; even if some manufacturers set up several dust removal outlets in the factory building, Introduce the dust into the dust collector through the induced draft fan, or install a dust removal cover above the furnace body, which can improve the environment in the factory building, but the control effect is poor, the dust removal efficiency is low, and the effect of controlling the flying dust that appears in the bucket is not ideal. , can not meet the requirements of environmental protection

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