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Compartment stepping washing self-deashing bag-type dust remover and dust removing method

A bag-type dust collector and self-cleaning technology, which is applied in separation methods, chemical instruments and methods, and separation of dispersed particles, can solve the problems of high energy consumption for cleaning dust and affect the service life of filter bags, and achieve air volume and pressure loss. Maintain stability, avoid the increase of air volume, and the effect of simple structure

Inactive Publication Date: 2013-04-24
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in addition to the defects that the dust removal airflow has to undergo secondary filtration, there are also shortcomings such as the dust removal process is too severe to affect the service life of the filter bag, high-pressure air source is required, and the energy consumption of dust removal is high.

Method used

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  • Compartment stepping washing self-deashing bag-type dust remover and dust removing method
  • Compartment stepping washing self-deashing bag-type dust remover and dust removing method
  • Compartment stepping washing self-deashing bag-type dust remover and dust removing method

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Embodiment 1

[0022] This embodiment is applied to the dust purification of the taphole flue gas of the ironmaking blast furnace, and the air inlet pipe of the present invention is connected with the gas collecting hood of the taphole.

[0023] Such as Figure 1 ~ Figure 3 As shown, a step-by-step scouring self-cleaning bag-type dust collector includes an upper box body 15, and a compartment 17 formed by a compartment partition 4 is arranged inside the upper box body 15. On the side of the upper box body 15 An intake header 14 is provided, and an intake pipe 3 is arranged at one end of the intake header 14; an intake window 5 is arranged between the intake header 14 and each sub-chamber 17, and a gate is arranged on the intake window 5 Plate valve 2, the upper part of the gate valve 2 is connected with the electromagnet 1 outside the sub-chamber 17; a middle box 16 is arranged below the upper box 15, and an upper flower plate 6 is arranged on the top of the middle box 16. The bottom of the...

Embodiment 2

[0037] This embodiment is applied to the purification of flue gas and dust of coal-fired boilers in thermal power plants.

[0038] Such as Figure 1 ~ Figure 3As shown, a step-by-step scouring self-cleaning bag-type dust collector includes an upper box body 15, and a compartment 17 formed by a compartment partition 4 is arranged inside the upper box body 15. On the side of the upper box body 15 An intake header 14 is provided, and an intake pipe 3 is arranged at one end of the intake header 14; an intake window 5 is arranged between the intake header 14 and each sub-chamber 17, and a gate is arranged on the intake window 5 Plate valve 2, the upper part of the gate valve 2 is connected with the electromagnet 1 outside the sub-chamber 17; a middle box 16 is arranged below the upper box 15, and an upper flower plate 6 is arranged on the top of the middle box 16. The bottom of the middle box 16 is provided with a lower flower plate 9, the upper and lower flower plates have throug...

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Abstract

A compartment stepping washing self-deashing bag-type dust remover and a dust removing method belong to the field of environmental protection technology. The dust remover of the invention can not only clear the dust layer on the bag wall surface of a filter bag, but also prevent the dust remover wind amount increase formed during a deashing airflow secondary filter process. The dust remover includes an upper tank body, wherein compartment dividing boards are arranged inside the upper tank body, an air inlet header is arranged at the side portion of the upper tank body, an air inlet window is arranged between the air inlet header and each compartment, and the air inlet window is provided with a gate valve which is connected to a solenoid; a middle tank body arranged under the upper tank body, wherein an upper porous board, a lower porous board and filter bags are arranged inside the middle tank body; and an air outlet header is arranged at the side portion of the middle tank body. The dust removing method of the present invention is as follows: opening a gate valve, so that dust-containing air clears the dust layer on the filter bag, and the other filter bags filter the dust-containing air; and then opening the next gate valve, and closing the other gate valve to form an orderly cycle of filter bag clearing and filtering.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and relates to dust removal equipment and powder recovery equipment in the powder industry, in particular to a step-by-step flushing self-cleaning bag-type dust collector and a dust removal method. Background technique [0002] Due to its high dust purification efficiency and strong adaptability to dust properties, the bag filter is widely used in the fields of flue gas dust purification and powder material recovery. When the bag filter is working, as the dusty airflow is filtered and purified by the filter bag, a gradually thickened dust layer is formed on the surface of the filter wall of the filter bag, and the dust layer increases the filtration resistance of the gas. In order to restore the normal working condition of the filter bag, the excessive dust layer on the filter wall surface of the filter bag must be removed, which is the so-called dust removal. [0003] The clean...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/02B01D46/04
Inventor 郝文阁周伟男孙曼丽
Owner NORTHEASTERN UNIV
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