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Blast-furnace pressure-discharging gas recovering device and method

A recovery device and gas technology, applied in blast furnaces, blast furnace details, blast furnace parts, etc., can solve problems such as polluting the environment, wasting high-pressure gas, etc., and achieve the effects of convenient on-site implementation, reliable operation, and simple process

Active Publication Date: 2010-06-09
CISDI ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The sub-systems of the equal pressure exhaust system of material tank 1 independently exhaust the high-pressure gas in each material tank, which not only wastes a lot of high-pressure gas, but also pollutes the environment

Method used

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  • Blast-furnace pressure-discharging gas recovering device and method

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Embodiment Construction

[0014] Attached below figure 2 The present invention is described further:

[0015] attached figure 2 It is a tank combining device, and the feed tank 1 is a tank combining feed tank 1-1 and feed tank 1-2.

[0016] The feed tank 1 of the three-tank device is feed tank 1-1, feed tank 1-2 and feed tank 1-3, and the attached figure 2 the same way.

[0017] Take the material tank 1-1 as an example:

[0018] Material tank 1-1 is connected to blast furnace 3 through sealing valve 2-1, material tank 1-1 is connected to pressure equalizing system 4-1, and secondary pressure equalizing system pipeline 15-1 is connected to the cyclone of pressure equalizing system 4-1. The pipeline above the dust collector 6-1 is connected; the pressure exhaust gas recovery pipeline 16-1 of the pressure exhaust gas recovery system is also connected to the pipeline above the cyclone dust collector 6-1.

[0019] Pressure equalizing exhaust system 4-1 includes equalizing valve 5-1, cyclone dust col...

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Abstract

The invention discloses blast-furnace pressure-discharging gas recovering device and method of a blast-furnace top pressure equalizing-discharging system, belonging to the technical field of metallurgical industry. The device is suitable for the blast-furnace top pressure equalizing-discharging system which adopts a parallel-tank or three-tank bell-less top charging device and comprises a material tank, a pressure equalizing-discharging system and a secondary pressure-equalizing system, wherein the material tank is connected with a blast furnace through a seal valve, and meanwhile, the material tank is connected with the pressure equalizing-charging system; and the secondary pressure-equalizing system is connected with a pipeline of the pressure equalizing-discharging system. The device is characterized in that: on the pressure equalizing-discharging system of the parallel-tank or three-tank bell-less top charging device, a pressure equalizing-discharging subsystem of each material tank is connected with a pressure-discharging gas recovering system. The invention has simple process, reliable operation and convenient field construction, can reduce the blast-furnace gas consumption and the dust-containing gas emission, and is practical technology with energy saving and environmental protection.

Description

technical field [0001] The present invention (or invention) belongs to the technical field of metallurgical industry, and discloses a blast furnace exhaust pressure gas recovery device and method for a blast furnace roof uniform exhaust system. The device and method are applicable to a blast furnace top equalizing pressure discharge system that adopts tank-merging or three-tank bellless top charging equipment. Background technique [0002] In order to improve the blast furnace smelting intensity, reduce the coke ratio and ensure the smooth operation of the blast furnace, the blast furnace smelting must adopt high pressure operation. Therefore, in order for the raw material and fuel to be smoothly loaded into or discharged from the material tank, the material tank must adopt an equal pressure discharge system. The main purpose of the pressure equalization discharge system is to control the smooth opening of the upper and lower sealing valves of the material tank, to ensure t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B7/00
Inventor 欧阳标熊拾根周后祥文辉正
Owner CISDI ENG CO LTD
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