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Blast furnace flush slag water waste heat utilization system and method

A blast furnace slag flushing water and slag flushing water technology, which is applied in the field of blast furnaces, can solve problems such as equipment damage and corrosion, and achieve the effects of saving manufacturing costs, high heat exchange efficiency, and strong resistance to erosion and clogging

Active Publication Date: 2016-07-20
HUNAN GREEN & INNOVATIVE MATERIALS CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies, to provide a device that can solve the problem of equipment damage and corrosion caused by slag flushing water, can realize the online descaling function, can stably use the residual heat of slag flushing water, and can perform water quality treatment without flushing slag water. A new method of utilizing waste heat of blast furnace slag flushing water to extract heat from flushing slag water

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  • Blast furnace flush slag water waste heat utilization system and method

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Embodiment Construction

[0020] Below in conjunction with all accompanying drawings the present invention will be further described, and preferred embodiment of the present invention is: see appended figure 1 , the waste heat utilization system of blast furnace slag flushing water described in this embodiment includes a sand dredging section, a slag flushing pool, and an outer part connected in sequence. Steam evaporation mechanism, the slag flushing water evaporation mechanism includes a slag flushing water screw expansion power machine 1, a slag flushing water condenser 2, a slag flushing water liquid storage device 3, an immersion preheater 4, and a dry evaporator 5, Among them, the immersion preheater 4 and the dry evaporator 5 are installed in the slag washing pool, and the outlet of the immersion preheater 4 is connected to the inlet of the dry evaporator 5, and the outlet of the dry evaporator 5 is connected to the slag washing water screw The expansion power machine 1 is connected, the slag wa...

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Abstract

The invention provides a novel blast furnace flush slag water waste heat utilization method. Two main parts are included, wherein the first part is a flush slag pond outer part, that is, a water steam evaporation R123 part, and the second part is a flush slag pond part, that is, a flush slag water evaporation R123 part; and according to the novel blast furnace flush slag water waste heat utilization method, the problems of equipment damage and corrosion caused by flushing of flush slag water can be solved, online descaling functions can be achieved, flush slag water waste heat can be stably used, and flush slag water heat can be extracted under the condition that the flush slag water is not subject to water quality treatment.

Description

technical field [0001] The invention relates to the technical field of blast furnaces, in particular to a system and method for utilizing waste heat of blast furnace slag flushing water. Background technique [0002] At present, there are obvious problems in the utilization of waste heat in the traditional blast furnace slag flushing water: (1) The erosion of the metal partition wall by sand particles may easily cause early damage to the heat exchanger, and the sand particles may easily block the pipeline; impact, making the heat of slag flushing water unstable, and the ideal heat exchange effect cannot be achieved; (3) The traditional method of utilizing waste heat of slag flushing water is that the water quality must be treated before the slag flushing water enters the heat exchanger, which has low efficiency and high cost. high. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned deficiencies, to provide a device t...

Claims

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Application Information

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IPC IPC(8): C21B3/08F27D17/00
CPCC21B3/08F27D17/004Y02P10/25
Inventor 陈华为
Owner HUNAN GREEN & INNOVATIVE MATERIALS CO LTD
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