Converter gas waste heat utilization system and method

A converter gas and waste heat technology, applied in the converter gas waste heat utilization system, the field of gas heat utilization behind the converter vaporization hood, to achieve the effect of improving heat utilization rate and reducing the use load

Pending Publication Date: 2020-11-20
CHONGQING CISDI THERMAL & ENVIRONMENTAL ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the object of the present invention is to provide a converter gas waste heat utilization system and method, aiming to solve the problem of further cooling and dehydrating the gas before entering the gas dehydrator, so as to reduce the use load of the gas dehydrator

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  • Converter gas waste heat utilization system and method

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Embodiment Construction

[0022] The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0023] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should not be...

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Abstract

The invention belongs to the technical field of converter flue gas waste heat utilization, and relates to a converter gas waste heat utilization system and method. The system comprises a flue gas cooler connected with a vaporization smoke hood, a coal gas dehydrator connected with a dust removal system, a flue gas-water heat exchanger arranged between the flue gas cooler and the coal gas dehydrator and communicating with the flue gas cooler and the coal gas dehydrator through gas paths correspondingly, and a lithium bromide unit communicating with a water path of the flue gas-water heat exchanger, wherein the lithium bromide unit is further connected with a cold load user and a heat load user. According to the system, the temperature behind the flue gas cooler is utilized, hot water with the constant pressure of 130 DEG C or above is formed to serve as a driving heat source of the lithium bromide unit, and coal gas is further cooled; and meanwhile, the latent heat of water vapor in thecoal gas is utilized to primarily dehydrate the coal gas, so that the use load of the coal gas dehydrator is reduced.

Description

technical field [0001] The invention belongs to the technical field of waste heat utilization of converter flue gas, and in particular relates to a system and method for utilizing waste heat of converter gas, which is suitable for utilization of heat of gas after a converter vaporization fume hood. Background technique [0002] The temperature of the flue gas discharged from converter steelmaking is very high. After passing through the vaporization hood, the temperature drops to about 1000°C. After being cooled by the converter flue gas cooler, the temperature is still higher than 140°C, and it belongs to wet gas. The water in the gas exists in the steam state and has a large amount of latent heat of vaporization. Generally, it is directly removed in the gas dehydrator, and almost all the heat is wasted. Therefore, it is urgent to design a new type of heat utilization system to utilize this part of the heat of the flue gas. How to reduce the capacity of the dehydrator throug...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C5/40F27D17/00
CPCC21C5/40F27D17/004Y02P10/25
Inventor 唐家毅张茂陈丽李斌王毅
Owner CHONGQING CISDI THERMAL & ENVIRONMENTAL ENG CO LTD
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