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Pneumatic transmission method for dry dedusting of fine ash in converter gas

A technology of pneumatic conveying and converter gas, applied in the direction of manufacturing converters, etc., can solve the problems of dust everywhere, fine ash limitation, ash jamming, etc., and achieve the effect of improving the conveying capacity, reducing the failure rate, and no dust overflow.

Active Publication Date: 2015-04-01
WISDRI ENG & RES INC LTD
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  • Claims
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Problems solved by technology

[0003] The main problems of the existing fine ash conveying technology for dry dust removal are as follows: first, the electrostatic precipitator is prone to explosion, and the equipment is easy to be damaged, which seriously affects the normal production of the converter; Affect the normal production of the converter; third, the storage and transportation of fine ash are limited by the site and distance; fourth, the humidification of fine ash is not uniform, resulting in dust everywhere during ash unloading, polluting the environment

Method used

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  • Pneumatic transmission method for dry dedusting of fine ash in converter gas

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Embodiment Construction

[0033] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0034] A method for pneumatic conveying of converter gas dry dedusting fine ash of the present invention comprises steps S1-S6, specifically as follows:

[0035] S1. Construct converter gas dry dust removal fine ash pneumatic conveying system, such as figure 1 As shown, it includes a dry filter bag filter 1, a first horizontal chain conveyor 2, a second horizontal chain conveyor 3, a cut-out chain conveyor 4, ash discharge main pipe 5 and a pneumatic three-way distributor 7. The first ash unloading branch pipe 10, the second ash unloading branch pipe 15, the first warehouse pump 13, the second warehouse pump 18, the pneumatic conveying pipe 26, and the fine ash bin 27.

[0036] The first horizontal chain conveyor 2 and...

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Abstract

The invention relates to a pneumatic transmission method for dry dedusting of fine ash in converter gas, which comprises the following steps: S1, constructing a pneumatic transmission system for dry removal of dust and fine ash in converter gas; S2, material feeding: discharging ash into a first bin pump (13) or a second bin pump (18); S3, fluidizing: transporting nitrogen from a gas tank (20) into a first fluidizing device or a second fluidizing device; S4, conveying: conveying evenly fluidic gas ash mixture to a fine ash cabin (27) via a pneumatic conveying pipe (26); S5, blowing; and S6, transporting. The invention adopts a dry filter bag deduster with no spark discharge, which thoroughly solves the problem of easy explosion venting caused by a static deduster. By the method, conveying step of fine dust is minimized, and equipment failure rate is substantially reduced. Storage and transportation of ash in the fine ash cabin are not limited by site or distance.

Description

technical field [0001] The invention relates to the field of environmental protection, and more specifically relates to a pneumatic conveying method for dry dust removal of converter gas and fine ash. Background technique [0002] With the increasing awareness of environmental protection, most newly built and rebuilt converters use dry dust removal. The existing fine ash conveying technology for dry dust removal is: the fine ash collected by the electrostatic precipitator passes through the built-in chain conveyor, pneumatic flapper valve, pneumatic double flap valve, external chain conveyor, screw conveyor, bucket conveyor, etc. The hoist sends it to the fine ash bin outside the main workshop, and is transported by car after humidification. [0003] The main problems of the existing fine ash conveying technology for dry dust removal are as follows: first, the electrostatic precipitator is prone to explosion, and the equipment is easy to be damaged, which seriously affects ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21C5/40
Inventor 葛雷王亮王勇纲纪世昌
Owner WISDRI ENG & RES INC LTD
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