Hot air valve body
A hot blast valve and valve body technology, applied in blast furnace parts, furnaces, heating furnaces, etc., can solve the problems of low resistance to hot blast erosion, heat preservation of refractory materials, and poor heat insulation effect.
Active Publication Date: 2010-07-14
SHILIN LUOHE METALLURGY EQUIP
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Problems solved by technology
[0003] In order to solve the above-mentioned technical problems of heat preservation and heat insulation effect of the valve body of the hot air valve, and the low ability of the surface to resist hot wind erosion, it is proposed to improve the structural design of the valve body, and adopt more advanced high-heat-resistant material lining in the structure, which can save water. It can also improve the service life of the hot air valve, thus providing a new hot air valve body
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Embodiment Construction
[0009] Embodiments of the present invention will be described below in conjunction with the accompanying drawings.
[0010] As shown in the figure: the hot air valve body includes a valve body 1 and left and right flanges 2 and 3, and a layered refractory lining covering layer 4 is used in the valve body 1 and left and right flanges 2 and 3. The covering layer includes heat insulation layer, heat insulation layer, heat insulation layer, high temperature resistant layer and energy-saving reflective layer distributed in sequence. Heavy castables are used, and the energy-saving reflective layer is made of aluminum-zirconium high-temperature paint. The valve body 1 and the left and right large flanges 2 and 3 are welded with anchor nails 5 on the inner side walls of the casing.
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The invention discloses a hot blast valve body. The hot blast valve body comprises a valve body, a left flange and a right flange; the valve body, a left flange shell and a right flange shell adopt a multilevel covering layer made of fire resistant material linings; the covering layer comprises a thermal insulation layer, a heat preservation layer, a heat isolation layer, a high-temperature resistance layer and an energy-saving reflection layer in turn; the thermal insulation layer adopts ganister; the heat preservation layer adopts a refractory felt; the heat isolation layer adopts a light-weight casting material; the high-temperature resistance layer adopts a heavy-weight casting material; and the energy-saving reflection layer adopts aluminum-zirconium high-temperature dope. The peripheral walls of the inner sides of the valve body, and the left flange shell and the right flange shell are welded with anchoring nails. The hot blast valve body obviously improves the cooling effect; compared with the prior lining hot blast valve body or a micro-water energy-saving hot blast valve disclosed by CN1769501, the structure of the hot blast valve body adopts more advanced high-temperature resistant material lining, improves the effects of heat preservation and heat isolation, reduces the heat load of a steel structure, can bear large thermal impact and thermal fluctuation, is not damaged by frequent startup and improves the service life of the whole hot blast valve.
Description
technical field [0001] The invention relates to a hot blast valve used in a blast furnace hot blast pipeline, in particular to a hot blast valve body. Background technique [0002] Chinese patent CN1769501 discloses a micro-water energy-saving hot air valve. Compared with the conventional lined hot air valve body, the large cross-section water chamber of the lined hot air valve body is changed to arrange water cooling pipes inside the left and right flanges. , saving cooling water significantly. However, saving cooling water means reducing the cooling intensity, and reducing the cooling intensity will increase the heat load of the valve body. In order to keep the heat load of the valve body from increasing, the inner surface of the valve body is covered with a layered refractory lining. Layers, including thermal insulation layer, heat insulation layer and high temperature resistant layer. However, the heat preservation and heat insulation effect of the three-layer refracto...
Claims
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IPC IPC(8): C21B9/12
Inventor 冯力张进张海佑李鹏飞郭宇滕伟强宋君广袁静波杨国宇
Owner SHILIN LUOHE METALLURGY EQUIP