Improved blast furnace soft water closed circulation system and method

A soft water sealing and circulation system technology, applied to cooling devices and other directions, can solve problems such as increased fatigue, potential safety hazards, long search and positioning time, and achieve the effect of improving efficiency and reducing the number of inspections

Active Publication Date: 2017-03-15
HUATIAN ENG & TECH CORP MCC
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Problems solved by technology

[0003] 1) The existing soft water closed cycle cooling system uses a single main water supply pipe for water supply. Due to the continuous cooling requirements of the blast furnace, in addition to the overhaul time, there is no time for maintenance and replacement of the valves and testing equipment on the main water supply pipe, which increases the The working time of valves and testing equipment increases fatigue and poses potential safety hazards;
[0004] 2) The secondary circulation of the existing soft water closed circulation cooling system is located between the return water branch pipe and the degassing tank. The secondary circulation cooling e

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  • Improved blast furnace soft water closed circulation system and method

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[0016] First of all, it should be noted that the specific structure, characteristics and advantages of the improved blast furnace soft water closed circulation system of the present invention will be specifically described below by way of example, but all descriptions are for illustration only, and should not be Any limitations on the invention are understood to be construed. In addition, any single technical feature described or implied in each embodiment mentioned herein, or any single technical feature shown or implied in each drawing, can still be described in these technical features (or their equivalents) ) to continue any combination or deletion, so as to obtain more other embodiments of the present invention that may not be directly mentioned herein.

[0017] Please refer to figure 1 In the following, the improved closed circulation system of blast furnace soft water of the present invention will be illustrated through this given embodiment.

[0018] Such as figure ...

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Abstract

The invention discloses an improved blast furnace soft water closed circulation system and method. The system comprises a host controller, a cooling wall cooling unit, an expansion and degasification unit, a secondary circulation water unit and a primary circulation water supply unit. According to the improved blast furnace soft water closed circulation system and method, multiple water supply main pipes are adopted, the redundancy degree of the system is increased, and blast furnace production safety is guaranteed; a cooling wall is zoned, grading and leakage detecting are facilitated, the time needed for leakage detecting is reduced, and guarantees are provided for stable production and cost reduction; and secondary circulation water setting is reasonable, the work pressure of secondary circulation water cooling equipment is reduced, the risk of water leakage is reduced, and the gas contents in primary circulation water and secondary circulation water are reduced.

Description

technical field [0001] The invention relates to the technical field of molten steel smelting equipment, in particular to an improved airtight circulation system for soft water in a blast furnace, and also to a method. Background technique [0002] The blast furnace cooling system mainly includes two types: the industrial water open circuit cooling system and the soft water closed circulation cooling system. The soft water closed circulation cooling system has the following main advantages over the industrial water open circuit cooling system: the cooling pipe is not easy to scale, the water is underheated (less circulating water can be used), the loss of water is small, the potential energy of the water level can be used, and the oxygen content in the water is low. It is a system that is more energy-efficient, saves investment and operating costs. After 2005, newly-built domestic blast furnaces basically adopt soft water closed circulation cooling system. After more than te...

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Application Information

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IPC IPC(8): C21B7/10
CPCC21B7/10
Inventor 董建民
Owner HUATIAN ENG & TECH CORP MCC
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