Environment-friendly type bottom filter process blast furnace slag treatment device and treatment method

Abstract

The invention discloses an environment-friendly blast furnace slag treatment device based on bottom filter process and a treatment method thereof. The treatment device comprises a water slag granulation pool. The water slag granulation pool comprises a granulation pool entrance unit and a granulation pool exit unit. The granulation pool entrance unit is provided thereon with a granulator. The water slag granulation pool is provided inside with a granulation pool condensation/spray device. The granulation pool exit unit is connected with a filter tank. The downstream of the filter tank is connected with a cooling tower via an upper tower pump. The invention realizes energy conversation, discharge reduction and safe production, overcomes the problem of large occupied area of the conventional bottom filter process, and reduces the costs for construction and operation.

Description

technical field [0001] The invention relates to blast furnace slag processing equipment and a processing method, in particular to an environment-friendly bottom filtration method blast furnace slag processing equipment and processing method. Background technique [0002] At present, in the blast furnace slag treatment equipment of the bottom filtration method, the punching and quenching of the slag are completed in the slag flushing ditch, and the slag-water separation is carried out by a filter pool, and the design value of the filtration rate is 5-8t / (m 3 h), although this method can better achieve the purpose of slag quenching and slag-water separation, it has the following defects: ①The amount of slag flushing water is large; ②The filtration speed design value of the filter tank is small; ③The floor area is large; ④ Large amount of steam discharge; ⑤ high operating cost; ⑥ slag flushing ditch is prone to explosion, endangering personnel and facilities around the slag flu...

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Problems solved by technology

[0002] At present, in the blast furnace slag treatment equipment of the bottom filtration method, the punching and quenching of the slag are completed in the slag flushing ditch, and the slag-water separation is carried out by a filter pool, and the design value of the filtration rate is 5-8t / (m 3 h), although this method can better achieve the purpose of slag quenching and slag-water separation, it has the following defects: ①The amount of slag flushing water is large; ②The filtration speed design value of the filter tank is small; ③The floor area is large; ④ Large amount of steam emission; ⑤ high operating cost; ⑥ slag flushing ditch is easy to explode, endangering personnel and facilities around the slag flushing point

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