Recovery system for waste heat of raw gas from riser tube of coke oven

A waste heat recovery system and waste gas technology, applied in the heating of coke ovens, coke ovens, indirect heat exchangers, etc., can solve the problems of low energy consumption and low power consumption, and achieve high heat transfer performance and low power consumption for operation , the effect of small cycle magnification

Inactive Publication Date: 2018-05-01
江苏道和环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The object of the present invention is: to solve the above technical problems, to propose a brand-new waste heat recovery system for waste gas in the coke oven ascending pipe.

Method used

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  • Recovery system for waste heat of raw gas from riser tube of coke oven

Examples

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Embodiment Construction

[0048] figure 1 It shows a specific embodiment of the coke oven riser raw gas waste heat recovery system of the present invention, which mainly includes a molten salt supply and delivery device, a first heat exchange device 1 and a second heat exchange device 2, wherein:

[0049] The molten salt supply and conveying device is used to provide molten salt and drive the molten salt to make a closed circulation flow.

[0050] The first heat exchange device 1 is arranged at the riser of the coke oven and is connected with the molten salt supply and delivery device. The raw gas heat exchange, so that the molten salt absorbs the heat of the raw gas in the rising tube of the coke oven.

[0051]The second heat exchange device 2 is also connected to the molten salt supply and delivery device, and the molten salt exchanges heat with the working medium in the second heat exchange device when circulating to the second heat exchange device, for use in Heat is absorbed by the molten salt a...

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Abstract

The invention discloses a recovery system for waste heat of raw gas from a riser tube of a coke oven. The recovery system comprises a molten salt supplying and conveying device, which is used for providing a molten salt and driving the molten salt to carry out closed circulation flowing; a first heat exchange device, which is arranged at the riser tube of the coke oven and connected with the molten salt supplying and conveying device, wherein the molten salt exchanges heat with raw gas in the riser tube of the coke oven when circularly flowing to the first heat exchange device, so the molten salt absorbs the heat of the raw gas in the riser tube of the coke oven; and a second heat exchange device, which is also connected with the molten salt supplying and conveying device and used for absorbing the heat of the molten salt which has absorbed heat from the raw gas. The recovery system provided by the invention is low in energy consumption and power consumption, and can prevent the innerwall of the riser tube from blockage caused by precipitated tar.

Description

technical field [0001] The invention relates to the technical field of waste heat recovery of raw gas in a rising pipe of coke oven, in particular to a waste heat recovery system of raw gas in a rising pipe of coke oven. Background technique [0002] A large amount of waste heat resources will be generated during the coking process of the coke oven. The heat of red coke accounts for about 37% of this part of waste heat resources, the sensible heat of raw coal gas accounts for about 36% of this part of resources, and the sensible heat of coke oven flue gas accounts for about 36%. About 17% of this part of resources, and the rest is heat dissipation on the surface of the coke oven, accounting for about 10% of this part of resources. Among them, the heat of red coke has been fully recovered and utilized through CDQ power generation technology, and the sensible heat of flue gas has also been recovered and utilized in coal humidity control or coking negative pressure ammonia dist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B27/00F22B1/18F28D15/02F28D15/00
CPCC10B27/00F22B1/1892F28D15/00F28D15/02Y02P20/129
Inventor 李成瑕
Owner 江苏道和环保科技有限公司
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