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Energy-saving hot blast valve using little water

A hot blast valve and micro water technology, applied in blast furnace details, blast furnace parts, furnaces, etc., to reduce air temperature loss, obvious energy saving effect, and prolong service life.

Inactive Publication Date: 2006-05-10
SHILIN LUOHE METALLURGY EQUIP
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned technical problems that have long plagued blast furnace hot blast pipeline valves that cannot be used normally, it is proposed to improve the valve structure design, adopt high heat resistant material lining in the structure, and add micro-water cooling measures, which can save water and increase the service life of the hot blast valve. Thereby providing a micro-water energy-saving hot air valve

Method used

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  • Energy-saving hot blast valve using little water
  • Energy-saving hot blast valve using little water
  • Energy-saving hot blast valve using little water

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Embodiment Construction

[0011] Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0012] As shown in the figure: the micro-water energy-saving hot air valve is composed of a valve body, a valve cover and a valve plate. The valve body and the left and right large flange shells (1) are layered with refractory linings (2) covering layers, and the cooling water pipes (3) on the sealing surfaces of the left and right large flanges are made of buried pipe castings or steel plate machined waterway parts. The bonnet casing (4) is also covered with a layered cast refractory lining (5). The two symmetrical surfaces of the outer layer of the valve plate body (6) are covered with a layered cast refractory lining (7), and the inner cooling water pipeline (8) is a buried pipe casting or a steel plate machined water channel part.

[0013] The layered cast refractory lining cover used in the valve body, bonnet and valve plate, the thermal insulation layer can...

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Abstract

The gently water energy conserving warm-air valve sloves the techonology problem that the blast funace warm-air pipeline valve can not be used normally, which includes valve body, valve cover, valve board. The valve body, valve cover and right-and-left flange shell uses layered refractory material lining covering, the water-cool pipeline is arranged on the right-and-left flange seal surface. And the symmetry face of the outside valve board also uses layered refractory material lining covering, the water-cool pipeline is arranged in its inner part. The related used layered lining covering includes heat preservation layer, heat insulation layer and hegh temperature layer; each one can use fire-proof lightening cast material and heavy cast material. Wherein the water using quantum is only equal to 25í½30úÑ water quantum of the warm-air valve, and it can reduce wind temperature lost, improve the wind temperature by 10í½20íµ, bear some large heat impact and heat fluctuate, have long longevity.

Description

Technical field [0001] The invention relates to a micro-water energy-saving hot air valve applied to a blast furnace hot air pipeline. Background technique [0002] The hot blast valve in blast furnace ironmaking is installed on the hot blast pipe of the hot blast furnace. It works in a high temperature environment for a long time, and the working conditions are harsh and prone to thermal fatigue. In order to reduce its high temperature oxidation and thermal stress deformation, water circulation cooling is usually used at home and abroad to cool down. Although it has a certain cooling effect, it consumes a lot of water resources, and the loss of air temperature is large. As a result, it cannot be cooled down, the hot air valve is damaged, and the service life is greatly limited. SUMMARY OF THE INVENTION [0003] In order to solve the above-mentioned technical problems that have long plagued blast furnace hot blast pipe valves, it is proposed to improve the valve structure...

Claims

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Application Information

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IPC IPC(8): C21B9/12
Inventor 张明正王银河冯力赵承均张进刘振均李鹏飞冯国兴熊滨生荆松波
Owner SHILIN LUOHE METALLURGY EQUIP
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