Filter cartridge dust remover with automatical and continuous dust removal function

Abstract

The invention discloses a filter cartridge dust remover with an automatical and continuous dust removal function, which can remove dust or recover materials at a high temperature. The dust remover is characterized in that a filter cartridge is coaxially fixed in a shell; a compressed air delivery pipe is coaxial with the filter cartridge and vertically stretches into the bottom of the filter cartridge from the outside of the top of the shell; the compressed air delivery pipe in the filter cartridge is vertically communicated with an air nozzle which faces to an side wall of the filter cartridge; high-speed airflows are transmitted to the compressed air delivery pipe from the outside and sprayed out by the air nozzle; a support framework is arranged at the outermost layer of the side wall of the filter cartridge and a second wire mesh is arranged at the innermost layer of the side wall of the filter cartridge; and the support framework is fixedly adhered to a first wire mesh and filter materials are filled in the space between the first wire mesh and the second wire mesh. The filter cartridge dust remover is simple in structure and reliable in dust-removing performance; the fatigue loss is prevented when the filter cartridge filters materials; and the filter cartridge dust remover is long in service life.

Description

technical field [0001] The invention relates to a dust collector, which is used for dust removal and purification or material recovery of industrial gases at high temperature, such as dust removal of coal-fired boiler flue gas, kiln flue gas dust removal, cupola flue gas dust removal, coke oven coal-fueled flue gas dust removal, Coal preparation system dust removal, especially the recovery of precious metals in high-temperature flue gas during the smelting process, can also be used to remove harmful gas components in the gas. Background technique [0002] Industrial gas dust removal and purification methods include: single-tube or multi-tube cyclone dust removal, wet dust removal, bag dust removal, electrostatic dust removal and granular layer dust removal. The application occasions are divided into high-temperature dust removal and low-temperature dust removal. The cyclone dust collector has a low dust removal efficiency for fine particles. The dust-containing gas after du...

AI Technical Summary

Problems solved by technology

The cyclone dust collector has a low dust removal efficiency for fine particles. The dust-containing gas after dust removal cannot meet the dust removal requirements of the process or meet the discharge requirements in some occasions, but it can perform dust removal with high-temperature airflow; wet dust removal is prone to secondary pollution; Although the filter performance of the bag type dust removal is good, it has requirements on the temperature and humidity of the dusty gas. During the operation, the bag is fatigued and damaged due to the frequent actions of filtering and dust removal. The maintenance is difficult, the maintenance period is short, and the cost is high; Electrostatic precipitators have special requirements on dust characteristics, airflow temperature and airflow moisture content, and their versatility is not strong; the granular layer filter cartridge has the function of a bag filter, and its ability to withstand high temperature and fatigue damage is much higher than that of a bag. However, the granular layer dust removal has obvious application advantages in high temperature occasions.

[0003] In the process of industrial production or energy conversion, there is a large amount of high-temperature dust-containing gas that needs dust removal and purification treatment. For example, the precious particulate matter contained in the smelting gas needs to be recovered under high temperature conditions, or the process requires high-temperature dust removal to facilitate the recovery of heat energy. Therefore, Generally, a wire mesh filter cartridge structure is used. Although the wire mesh filter cartridge is suitable for high temperature dust removal, the dust removal efficiency is low. Due to the limitation of the dust removal method (air knife dust removal) and the internal dust removal structure, the operation performance of the dust collector is affected. , the dust removal effect is poor, the dust removal performance is reduced, the gas handling capacity is reduced, and the reliability of the ash discharge mechanism is poor. The impact produced during the application process is not conducive to improving the dust removal efficiency and the processing capacity of the equipment.

Images