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Annealing furnace air-cooling section cooling method and system

A cooling method and cooling system technology, applied in furnaces, heat treatment furnaces, furnace types, etc., can solve the problems of insufficient cooling, waste, and large air volume in the cooling section

Pending Publication Date: 2018-11-30
SHANDONG HONGWANG INDUSTRY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cooling air volume of the furnace body in the existing steel strip cooling section is the same, resulting in insufficient cooling in the front section of the cooling section, and too much air volume in the rear section of the cooling section, resulting in waste. Therefore, improvement is urgently needed.

Method used

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  • Annealing furnace air-cooling section cooling method and system
  • Annealing furnace air-cooling section cooling method and system

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Embodiment Construction

[0023] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0024] The embodiment of the present invention discloses a method for cooling the air-cooled section of an annealing furnace. The method includes dividing the air-cooled section into a plurality of cooling units arranged sequentially along the belt conveying direction, and each of the cooling units is provided with an independent cooling air The air supply system also includes at least one air extraction system, the cooling air of at least one cooling unit located at the rear end of the belt conveying direction is sent out from the cooling unit as new cooling air and sent to at least one of the front ends of the cooling unit. A cooling unit, the air outlet syste...

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Abstract

The invention provides an annealing furnace air-cooling section cooling method and system. The method comprises the step that an air-cooling section is divided into multiple cooling units, wherein thecooling units are sequentially arranged in the direction of a conveying belt, and each cooling unit is provided with an independent cooling air supply system. The system further comprises one or moreair suction outlet systems and the one or more cooling units, wherein by means of the cooling units, after being delivered out of the cooling unit located at the rear end of the conveying belt, cooling air of the cooling unit is delivered into the front end of the cooling unit as new cooling air. The air outlet systems are used for exhausting the air for the cooling units other than the cooling unit. By means of the method, the excessive air capacity of a rear section of the cooling section can be reutilized, so that the excessive air capacity is used for increasing the cooling air capacity of a front section of the cooling section; and thus, the cooling effect of the cooling section is improved, the equipment structure is simplified, and energy is saved.

Description

technical field [0001] The invention relates to the technical field of steel strip annealing furnaces, in particular to a method and system for cooling an air-cooled section of an annealing furnace. Background technique [0002] The purpose of the annealing process after rolling of stainless steel strips is to uniform the chemical composition and structure of the steel strip, refine the grains, and adjust the hardness. The annealing process is usually carried out in an annealing furnace. The steel strip is transported in the annealing furnace. At this time, the temperature in the annealing furnace can reach up to 1600 degrees Celsius. Therefore, the surface temperature of the steel strip passing out of the annealing section is high, and a cooling section is required. The steel strip is transported in the furnace body of the cooling section, and the temperature on the surface of the steel strip is carried by the cooling air to achieve the purpose of cooling the steel strip. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/573C21D1/26
CPCC21D1/26C21D9/5735
Inventor 戴泽辉卢威
Owner SHANDONG HONGWANG INDUSTRY CO LTD
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