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Novel combined soft water closed circulation cooling system

A circulating cooling system and soft water sealing technology, applied in the direction of cooling devices, etc., can solve the problems of large amount of water in the subsystem, the investment and operating costs are not the most economical, and the configuration method of the combined soft water closed circulating cooling system is unreasonable, so as to reduce operating costs. , the effect of reducing the number of pipelines and reducing operating costs

Active Publication Date: 2013-03-13
WISDRI ENG & RES INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the configuration of the combined soft water closed cycle cooling system is still unreasonable, resulting in too much water in the subsystems, and the investment and operating costs of the entire system are not the most economical disadvantages

Method used

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  • Novel combined soft water closed circulation cooling system
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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment one, as attached figure 1 As shown, the soft water pressurized by the main water supply pump group 13 is divided into two parts in front of the furnace, a part of the furnace bottom water cooling pipe 1 and stave serpentine pipe 2 in series are cooled, and a part of the cooling stave direct cooling pipe 3 is cooled. The water enters the stave return water main circulation pipe, and the soft water coming out of the stave return water general circulation pipe is divided into three parts, one part can directly enter the degassing tank 10 through the bypass shunt pipe 14, and the other part passes through the hot air valve booster pump group 4 The pressurization is used for the hot air valve 5; the other part is pressurized by the booster pump group 6 of the small tuyere set, and is used for the small tuyere 7. After cooling the soft water of the small tuyere 7, it is supplied to the parallel tuyere middle set 8 and the direct blowing pipe. 9 use; these two parts...

Embodiment 2

[0016] Embodiment two, as attached figure 2 As shown, the soft water pressurized by the main water supply pump group 13 is divided into two parts in front of the furnace, a part of the furnace bottom water cooling pipe 1 and stave serpentine pipe 2 in series are cooled, and a part of the cooling stave direct cooling pipe 3 is cooled. The water enters the stave return water main circulation pipe, and the soft water coming out of the stave return water general circulation pipe is divided into three parts, one part can directly enter the degassing tank 10 through the bypass shunt pipe 14, and the other part passes through the hot air valve booster pump group 4 Supercharging is supplied to the parallel hot air valve 5 and the small tuyere booster pump group 6. The soft water pressurized by the hot air valve booster pump group 4 is pressurized in series by the tuyere small booster pump group 6 and then supplied to the tuyere small set 7. After cooling the soft water in the tuyere ...

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Abstract

The invention provides a novel combined soft water closed circulation cooling system for a blast furnace. Soft water pressurized by a main pump set passes through a furnace bottom water cooling pipe, a cooling wall coiled pipe, a cooling wall straight cooling pipe, a hot air valve booster pump set, a hot air valve, a small air opening sleeve booster pump set, a small air opening sleeve, a medium air opening sleeve, a straight blowing pipe and other cooling equipment, and a pressure pump set, which are combined through all pipelines or partial pipelines in series connection and parallel connection modes, is gathered, degassed by a degassing tank and subjected to pressure stabilization and leak detection by an expansion tank, returns to a soft water pump room, and is cooled by a heat exchanger, pressurized by the main pump set and supplied to the blast furnace for circulation, wherein in the cooling equipment, the medium air opening sleeve and the straight blowing pipe are connected in parallel; the small air opening sleeve is connected in series with the parallelly connected medium air opening sleeve and straight blowing pipe; and the hot air valve is connected in parallel with the serially and parallelly connected small air opening sleeve, medium air opening sleeve and straight blowing pipe. By the optimized parallel connection and serial connection combined mode, the novel combined soft water closed circulation cooling system has the advantages of less cooling water amount, a fewer system pipelines, valves and pump sets, and low total investment and operating cost.

Description

technical field [0001] The invention relates to a new combined soft water closed cycle cooling system for blast furnace cooling. Background technique [0002] At present, the combined soft water closed cycle cooling system has become the basic configuration of domestic large and medium-sized blast furnace cooling systems. The combined soft water closed cycle cooling system adopts the method of parallel connection and series connection to form a combined soft water closed cycle cooling system, making full use of the non-condensation of soft water Scale, can properly improve the advantages of water temperature difference, thereby reducing water, saving investment and operating costs. Judging from the actual operation effect of the current combined soft water closed cycle cooling system, the advantages of less system water, less investment and lower operating costs have indeed been realized. For example, the invention patent of Chinese Patent Publication No. CN1417350A disclos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B7/10
Inventor 方明新周强刘行波李雷葛慧超
Owner WISDRI ENG & RES INC LTD