Blast furnace water-slag treatment system and method
A blast furnace slag and treatment system technology, applied in the field of blast furnace slag treatment system, can solve the problems of water consumption, entry, environmental pollution, etc., and achieve the effect of environmental protection blast furnace slag treatment
Active Publication Date: 2018-07-24
BAOSHAN IRON & STEEL CO LTD
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Problems solved by technology
[0003] However, the process of treating blast furnace slag by water quenching has the following problems, that is, a large amount of steam is generated during the slag flushing process to cause water consumption, and the steam includes a large amount of H 2 S and SO x into the atmosphere, causing serious environmental pollution
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[0013] Below, refer to figure 1 and figure 2 The blast furnace slag treatment system 100 according to the embodiment of the present invention will be described in detail.
[0014] Such as figure 1 and figure 2 As shown, the blast furnace slag treatment system 100 involved in the embodiment of the present invention includes: a blowing box 1, a rotating drum 2, a hot water pool 3, a cold water source 22, a primary heat exchanger 4, a warm water pool 5, and a secondary heat exchanger Heater 6 and finished tank 7.
[0015] The blow box 1 communicates with a warm water tank 5 via a granulation pump 8 . In addition, the blow box 1 communicates with the drum 2 via a slag water bucket 9 . In addition, the blow box 1 is also in communication with the secondary heat exchanger 6 via the steam pipe 12 . Moreover, the blowing box 1 is used for flushing slag with water to form a mixture of flushing slag steam and slag water. Specifically, after the slag enters the blowing box 1 fro...
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The invention relates to a blast furnace water-slag treatment system comprising a blowing box, a rotary drum, a hot water pool, a first-stage heat exchanger, a cold water source, a warm water pool, asecond-stage heat exchanger and a finished product groove. The blowing box is used for flushing molten slag through water so as to form slag-flushing steam and a slag-water mixture; the rotary drum conducts slag-water separating on the slag-water mixture through rotating, so that hot water and water slag are separated; the hot water pool temporarily stores the hot water from the rotary drum; the first-stage heat exchanger conducts heat exchanging on the hot water from the hot water pool and cold water, and thus warm water is obtained; the cold water source communicates with the first-stage heat exchanger and supplies the cold water to the first-stage heat exchanger; the warm water pool communicates with the first-stage heat exchanger and temporarily stores the part of the warm water; the second-stage heat exchanger communicates with the first-stage heat exchanger and the blowing box, and conducts heat exchanging on the slag-flushing steam and the other part of the warm water, and thusrecovery hot water and the steam condensate are obtained; the finished product groove temporarily stores the water slag from the rotary drum; and the second-stage heat exchanger communicates with thehot water pool, and the steam condensate is conveyed to the hot water pool. Therefore, water-saving and environment-friendly blast furnace water-slag treatment can be achieved.
Description
technical field [0001] The invention relates to a blast furnace slag treatment system and a blast furnace slag treatment method. Background technique [0002] In the current iron and steel industry production, the water quenching method is generally used for blast furnace slag treatment. [0003] However, the process of treating blast furnace slag by water quenching has the following problems, that is, a large amount of steam is generated during the slag flushing process to cause water consumption, and the steam includes a large amount of H 2 S and SO x Into the atmosphere, causing serious environmental pollution. Contents of the invention [0004] The object of the present invention is to solve the above problems, and provide a blast furnace slag treatment system and a blast furnace slag treatment method capable of realizing water saving and environmental protection. [0005] In order to achieve the above object, a blast furnace slag treatment system according to the p...
Claims
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IPC IPC(8): C21B3/08
CPCC21B3/08
Inventor 朱勇军朱锦明华建明
Owner BAOSHAN IRON & STEEL CO LTD