A system for producing steam by using the waste heat of coke oven heating exhaust gas

A technology for heating exhaust gas and producing steam, which is used in steam generation methods using heat carriers, steam boilers, steam generation, etc. good adaptability

Inactive Publication Date: 2011-12-21
青岛中拓科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a system for producing steam by using the w

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  • A system for producing steam by using the waste heat of coke oven heating exhaust gas
  • A system for producing steam by using the waste heat of coke oven heating exhaust gas
  • A system for producing steam by using the waste heat of coke oven heating exhaust gas

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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] The system principle of the present invention is as figure 1 As shown, it includes a waste heat boiler 2 whose upper end is connected to the coke oven exhaust gas flue 1. The lower end of the waste heat boiler 2 is connected to the coke oven chimney 4 through an induced draft fan 3. The waste heat boiler 2 is provided with superheaters in sequence from top to bottom. 5. Evaporator 6, economizer 7, cold water preheater 8; the inlet header of cold water preheater 8 is connected to softened water tank 9, the outlet header is connected to economizer 7, and the outlet header of economizer 7 is connected to The evaporator 6 is connected, and the steam outlet of the evaporator 6 is connected with the inlet header of the superheater 5 .

[0017] Those skilled in the art should understand that, figure 1 The shown is only a schematic diagram, and does ...

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Abstract

The invention relates to waste heat utilization technology of a coke oven, in particular to a system for producing steam by using the waste heat of coke oven heating waste gas. The system includes a waste heat boiler whose upper end is connected to the coke oven exhaust gas flue, and whose lower end is connected to the chimney through an induced draft fan. Heater; the inlet header of the cold water preheater is connected to the softened water tank, the outlet header is connected to the economizer, the outlet header of the economizer is connected to the evaporator, and the steam outlet of the evaporator is connected to the inlet header of the superheater. The steam production process of the invention is relatively simple, the equipment is easy to arrange, and the floor area is small; the waste heat boiler adopts a waste heat recovery device with a spiral fin tube structure, and the heat exchange efficiency is high.

Description

technical field [0001] The invention relates to waste heat utilization technology of a coke oven, in particular to a system for producing steam by using the waste heat of coke oven heating waste gas. Background technique [0002] The coking industry develops along with the development of the iron and steel industry, and is also one of the basic industries of the iron and steel industry. At the same time, the coking industry is also a large coal consumer (coking energy consumption accounts for about 70% of the energy consumption of the coking plant), and the heating consumption of the coking process accounts for 45-50% of the output and gas production of the coking process (accounting for coke oven gas output), so coking The industry is also an important industry for energy conservation and emission reduction. [0003] In order to ensure the quality of cooked coke and prevent coke from being born, the amount of heating gas is increased accordingly. In order to ensure comple...

Claims

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Application Information

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IPC IPC(8): F22B1/18F22B31/08
Inventor 邢同春
Owner 青岛中拓科技有限公司
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