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Heating furnace water beam binding method

A heating furnace and water beam technology, applied in the field of heat insulation and dressing, can solve the problems of unresolved water pipes, black marks, and reduce heat dissipation of water pipes

Inactive Publication Date: 2016-03-30
ANGANG STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Does not solve the problem of black marks on the water pipes and reduce the heat dissipation of the water pipes

Method used

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  • Heating furnace water beam binding method

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Embodiment Construction

[0016] For further describing the present invention, below in conjunction with embodiment the present invention is described in more detail:

[0017] 1. Take the hot continuous rolling heating furnace of a factory as an example. The heating temperature of the heating furnace is 1350°C, and the output is 120t / h. The billet pusher type heating furnace adopts vaporization cooling method and double drainage beam pipes. Using conventional methods, it is wrapped in a traditional two-layer structure. The thermal insulation layer is made of zirconium-containing fibers with a thickness of 20mm and 0.2w / m.k. The working layer is made of low-cement castables with a thickness of 50mm and 1.5w / m.k. Its vaporization cooling loss is detected to be 7.37%.

[0018] On the outer surface of the water pipe 1 at the bottom of the furnace, 4 square fixing blocks 2 are welded per meter of water beam pipe circumference, and a prefabricated block A3 that is semi-cylindrical and can cooperate with eac...

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Abstract

The invention discloses a heating furnace water beam binding method. A fixing block is arranged on the outer surface of a furnace bottom water pipe. A semi-cylindrical precast block A and a semi-cylindrical precast block B are prepared from heat insulating materials with the heat conduction coefficient smaller than 1.0 w / m.k and are matched to form a cylinder, and a groove in the same size as the fixing block is arranged in the cylinder. The precast block A and the precast block B are installed on the outer side of the furnace bottom water pipe, and the groove inside is rightly matched and connected with the fixing block, and finally the connecting position of the precast block A and the precast block B and the combination positions of the precast block A, the precast block B and the furnace bottom water pipe are sealed with high-temperature cement gum.

Description

technical field [0001] The invention belongs to the field of heating furnace energy saving, and in particular relates to an adiabatic wrapping method capable of reducing the heat dissipation of the water beam of the heating furnace. Background technique [0002] The current method of wrapping the water beam of the heating furnace is generally that the first layer outside the metal water beam tube is a heat insulating material, and then a castable, which plays the role of heat preservation and heat insulation. However, due to its large wrapping area and good thermal conductivity, during the production process, due to the large heat absorption of the water beam, the local temperature on the surface of the billet will drop (commonly known as the black mark of the water pipe). Heat loss in the furnace. [0003] CN200920254649.0 discloses a wrapping block for water pipes at the bottom of a heating furnace, which is used to solve the problem of heat dissipation loss of water pipe...

Claims

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Application Information

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IPC IPC(8): F27D9/00
Inventor 徐大勇刘常鹏马光宇赵爱华贾振张天赋李卫东王东山袁铃张宇
Owner ANGANG STEEL CO LTD
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