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Waste heat recycling system of annealing furnace

A waste heat recovery and annealing furnace technology, applied in furnaces, waste heat treatment, furnace components, etc., can solve problems such as hidden safety hazards and gradual utilization of heat, and achieve the effect of ensuring safety performance

Active Publication Date: 2014-10-08
湖南宏旺新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some enterprises have designed a flue gas recycling structure, but the heat cannot be fully utilized step by step according to the demand, or there are safety hazards in the utilization process

Method used

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  • Waste heat recycling system of annealing furnace
  • Waste heat recycling system of annealing furnace
  • Waste heat recycling system of annealing furnace

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Embodiment Construction

[0021] 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.

[0022] see figure 1 , an annealing furnace waste heat recovery and utilization system shown in a preferred embodiment of the present invention, including an annealing furnace 10, an air heat exchanger 20, a steam boiler 30, a hot water boiler 40, an exhaust fan 50, a combustion-supporting fan 60 and a combustion-supporting air duct 70.

[0023] The annealing furnace 10 includes a heating section 11 and a preheating section 12 connected to one end of the heating section 11. The preheating section 12 is provided with a pressure sensor 13 and a temperature sensor 14. The pressure sensor 13 detects the furnace pressure of the preheating section 12. Pressure contro...

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Abstract

The invention provides a waste heat recycling system of an annealing furnace. The waste heat recycling system comprises the annealing furnace, an air heat exchanger, a steam boiler, a hot water boiler, an exhaust fan, a combustion fan and a combustion air pipe. The annealing furnace comprises a heating section and a preheating section, the air heat exchanger is connected with the preheating section, the steam boiler is connected with the air heat exchanger, the hot water boiler is connected with the steam boiler, the exhaust fan is connected with the hot water boiler, the steam boiler is connected with a steam pipeline, the hot water boiler is connected with a hot water pipeline, the combustion fan is connected with the air heat exchanger, the combustion air pipe comprises a main pipe and a plurality of branch pipes communicated with the main pipe, one end of the main pipe is connected with the air heat exchanger, the branch pipes are connected with the heating section, and the main pipe is provided with an exhaust pipe and a pipe explosion prevention device. According to the waste heat recycling system of the annealing furnace, waste heat produced in the annealing process can be made full use of, and safety performance of the waste heat recycling system can be fully guaranteed.

Description

technical field [0001] The invention relates to an annealing process of an annealing furnace, in particular to a waste heat recovery and utilization system of an annealing furnace. Background technique [0002] The stainless steel strip must go through the annealing process after cold rolling, the purpose of which is to improve the structure and performance. The main functions of stainless steel annealing are: in the cold working process, if the workpiece has work hardening and machinability deterioration, annealing heat treatment method must be used to eliminate cold work hardening, so that the structure is uniform and softened, the hardness is reduced, and the pressure can be reduced. To improve the processability and to obtain good corrosion resistance, it is necessary to carry out appropriate heat treatment on the finished or semi-finished stainless steel. At present, the annealing furnace adopts the direct heating method of the flame nozzle, and the main energy medium ...

Claims

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Application Information

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IPC IPC(8): F27D17/00F23L15/00C21D9/56
CPCY02E20/34Y02P10/25
Inventor 戴泽辉刘自然卢威
Owner 湖南宏旺新材料科技有限公司
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