Blast furnace gas nonaqueous dust cleaner

Abstract

The invention belongs to system purifying equipment used for blast furnace gas fine dust removing, which relates to a blast furnace gas dry-process dust remover. The invention is characterized in that the blast furnace gas dry-process dust remover includes a first dust removing dry-process dust remover and a fine dust removing dust catcher. The top of the shell body of the dry-process dust remover is a gas inlet, a separator is arranged in the shell body of the dry-process dust remover, and an expansion opening is arranged on the bottom of the separator. An exhaust pipe, a nitrogen inlet, a manhole and a shaker are arranged on the bottom of the separator; a filter pipe is arranged in the shell body of the dry-process dust remover, and the filter pipe is foxed on a partition board. The dry-process dust remover is connected with the dust catcher through a pipeline, and an ash filtering pipe and an ash filter are arranged in the fine dust removing dust catcher. A valve and a shaker are arranged on the top of the ash filtering pipe, and a valve and an ash discharging opening are arranged on the bottom of the dust catcher. The invention has the advantages that the design is rational, the structure is simple, the service life is long, the dust removing effect is good, the equipment occupies less area, the weight of the equipment is low, the steel consumption is less, the equipment investment is low, and the energy can be saved.

Description

technical field [0001] The invention belongs to system purification equipment for blast furnace gas fine dust removal, and relates to a blast furnace gas dry dust collector. Background technique [0002] At present, the blast furnace gas produced by domestic blast furnace ironmaking has good use value, but the raw gas discharged from the top of the blast furnace contains 10-60g / m 3 Dust, raw gas must be dedusted to reduce the dust content to 5-10mg / m 3 The following are available to users. Traditionally, the purification of blast furnace gas adopts the combination of wet dust removal or dry gravity dust removal and wet cleaning, which has problems such as large equipment footprint, large steel consumption and water consumption. In recent years, the combination of full-dry gravity dust removal and bag filter has been used, which has the problems of bag condensation, burnout, and short service life. There is also the use of metal bag filter. Although the problem of bag burn ...

AI Technical Summary

Problems solved by technology

In recent years, the combination of full-dry gravity dust removal and bag filter has been used, which has the problems of bag condensation, burnout, and short service life. There is also the use of metal bag filter. Although the problem of bag burn is overcome, the metal The cost of the cloth bag is expensive, and there is still the problem of condensation, which affects the smooth operation of the blast furnace

Images