Environment-friendly blast furnace slag treatment process and system therefor
A technology of blast furnace slag and treatment process, which is applied in the field of blast furnace slag treatment process and its system, can solve the problems such as the granulation effect needs to be improved and the water balance effect is not good, and achieves good environmental protection effect, low energy consumption and easy water flow Effect
Active Publication Date: 2011-05-04
WISDRI ENG & RES INC LTD
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Problems solved by technology
The disadvantage is that the water balance effect of this process is not good, and the granulation effect needs to be improved
Method used
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[0019] As shown in Figure 3, it is an environmentally friendly blast furnace slag treatment process. The red slag produced by the blast furnace is sprayed with cooling water in the granulation box installed under the end of the red slag ditch. The slag and water quenched by spraying cooling water in the box first pass through the slag flushing ditch, then rush into the slag blocking plate in the granulation tank for further crushing, and then enter the collection pipe at the lower part of the granulation tank; then the slag in the collection pipe The slag-water mixture enters the slag water pipe and enters the distributor of the dehydration drum along the slag water pipe. The water in the lower part of the dehydration drum continues to cool the slag-water mixture, and is rotated and filtered by the dehydrator equipped with a sieve plate. When the dehydration drum turns to At the highest point, the water slag falls into the belt conveyor in the dehydration drum and is transferre...
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The invention relates to a blast furnace slag processing procedure and a system thereof. A environmentally-protecting blast furnace slag processing procedure comprising the steps of: installing red slag produced by the blast furnace on a granulating tank below an end part of red slag runner and ejecting cooling water for rapidly cooling water quenching, granulating the red slag to enter into a collection pipeline at the lower part of a granulating groove; water drops after vapor condensation falling into a condensation water collecting hopper, wherein the water in the condensation water collecting hopper is collected to a hot water groove by a third water pipe to mix with the water filtered by dehydrating revolving drum; the water in the hot water groove is pumped into a cooling tower forcooling by a first water pipe and a granulating back water pump, the cooling water after cooling through the cooling water is divided into two paths of which the cooled water in the first path is delivered into an atomizing nozzle of a condensing tower by a second water pipe and a condensing pump, the water in the second path is delivered into the granulating tank by a fourth water pipe and the granulating pump. The invention has the beneficial effects of quite simple system structure, good effect of granulating and environmental protection and lower energy consumption; and the invention conspicuously saves the investment and occupation of land, the water quantity of the entire system is easily to be balanced.
Description
technical field [0001] The invention belongs to the field of metallurgical ironmaking equipment, and in particular relates to a blast furnace slag treatment process and a system thereof. Background technique [0002] At present, the domestic environment-friendly blast furnace slag treatment system mainly consists of red slag ditch, granulation box, granulation tank (pool), dehydration drum, steam condensation recovery system (condensation tower), water pump, cooling tower, granulation condensation circulation water pipe The red slag ditch contains molten slag, the output end of the red slag ditch is located above the input end of the granulation tank (pool), and a granulation box is arranged between the output end of the red slag ditch and the input end of the granulation tank. There is a spray hole on the granulation box. When the slag from the red slag ditch falls into the granulation tank, the high-pressure water in the granulation box is sprayed out through the water spr...
Claims
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IPC IPC(8): C21B3/06
CPCY02P10/20Y02W30/50
Inventor 崔伟方音王卫东黄国方周强张灵唐强刘谭璟闫朝付
Owner WISDRI ENG & RES INC LTD