A kind of slag granulation and crushing equipment

Abstract

The invention discloses a kind of slag granulation and crushing equipment, which includes a primary crushing and screening system, a granulation and crushing system, and a magnetic separation system; Small-sized slag is screened and collected so that it does not need to be processed to improve processing efficiency; on the other hand, large-sized slag is screened out and mechanically crushed into small and medium-sized slag in order to improve the quality of subsequent processing and optimize the final length The uniformity of particle size; the processing flow chain of the equipment of the present invention is short, only involving screening, preliminary mechanical crushing and granulation crushing, etc., which greatly simplifies the processing technology. The generation of pollutants is reduced, and the proportion of water consumption is also greatly reduced, which is conducive to environmentally friendly processing and production.

Description

technical field [0001] The invention relates to the technical field of crushing equipment, in particular to slag granulation and crushing equipment. Background technique [0002] The slag in the boiler can be turned into loose granular slag after being rapidly cooled by water, that is, water-quenched slag. There are three main types of water quenching process: ballast pool water quenching, furnace front water quenching, and stirring tank pumping method. Among them, slag seeding is used to pull the slag to a place far away from the blast furnace for water quenching in the ballast pool, and the slag is directly poured into the water pool, and the water slag is grabbed by a crane after water quenching. Place it in the yard for loading and transportation. The water quenching tank is the sedimentation tank, so some people call this method "foaming slag", but the degree of pollution of this scheme is extremely high. The water quenching in front of the furnace is to impact the h...

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Problems solved by technology

The process is that after the molten slag is water quenched by the granulator, the slag and water flow into the stirring tank together, and the washed slag mixture is pumped into the distribution tank by the pump, and then the water slag mixture is put into the dehydration tank by the distribution tank Separate the water slag, pour it into the dumper from the discharge port, and transport it to the stockyard for accumulation. This scheme requires extremely high process conditions and equipment conditions, and the cumbersome operation process makes the treatment efficiency low

[0003] At present, there are still some problems in the following aspects in this field: (1) Most of the treatment of slag adopts one-size-fits-all treatment, such as mechanical crushing or simple water quenching granulation, while conventional slag not only has a large size difference, but also its composition and There is also a huge difference in texture level, which may easily lead to a large gap in the size of the processed slag, which is not convenient for subsequent processing and recycling, and because of the large size gap, it is easy to cause the machine to jam and stop working during the processing process, affecting processing efficiency; (2) Now Most of the equipment has a long process chain and cumbersome processing technology. At the same time, if the water quenching method is adopted, it will either easily cause large-scale pollution, or consume a large amount of water resources, which is extremely unfavorable for environmentally friendly processing and production; (3) the existing Due to the large size difference of the processed slag in the equipment, it can only be simply piled up and collected, and it is difficult to recycle the beneficial and useful parts, resulting in waste

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