Treatment system for blast-furnace slag

A blast furnace slag and treatment system technology, applied in the field of blast furnace ironmaking, can solve the problems of slag water spilling environment, pipeline water pump wear, and more water in the slag, and achieves good reference value, long equipment service life and high operation rate. Effect

Inactive Publication Date: 2007-05-16
XINGTAI IRON & STEEL
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

For example, the Inba method uses a large drum to dehydrate water slag to achieve slag-water separation. This method has good treatment effect, high degree of mechanization and automation, and a good working environment in front of the furnace. However, due to complex equipment, large investment, and high operating costs, Usually suitable for new large blast furnaces
Bottom filtration method or sedimentation tank method has simple equipment and is relatively easy to operate and maintain. It is a commonly used slag treatment method for small and medium-sized blast furnaces. Pollution, and due to the large amount of slag in the circulating water, the pipeline water pump is seriously worn

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  • Treatment system for blast-furnace slag
  • Treatment system for blast-furnace slag
  • Treatment system for blast-furnace slag

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Embodiment Construction

[0019] The blast furnace slag treatment system of the present invention has made many improvements in the blast furnace slag water quenching and conveying device, the sediment pool and the slag flushing water circulation device, the slag water separation and the water slag transporting device and the like. The improvements will be described in further detail below in conjunction with the accompanying drawings.

[0020] The blast furnace slag water quenching and conveying device includes a slag ditch and a slag flushing ditch. The blast furnace slag flows to the slag flushing point at the end of the slag ditch, and the slag is impacted by water with a certain pressure and flow rate, and water quenched and broken into the slag flushing Groove 8. Referring to Fig. 1, Fig. 2, the slope D of the front section 10-20 meters of the slag-washing ditch 8 of the present invention is advisable with 15 ° ~ 45 °, and should increase the front-section slope of the slag-washing ditch as far a...

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Abstract

The invention discloses a disposing system of blast furnace, which comprises the following parts: blast furnace slag water quenching and transmitting device, slag sediment pool, flushing cinder circulating device, slag-water separating and conveying device, wherein the slag sediment pool is composed of effluent pond, clean water pond, overflow channel, secondary filter slag pond and filter grid, which interconnect sequently; the overflow channel, secondary filter pond and clean water pond parallel; the overflow channel is shallower than effluent pond, clean water pond and secondary filter pond.

Description

technical field [0001] The invention relates to a slag processing system produced by blast furnace smelting and belongs to the technical field of blast furnace ironmaking. Background technique [0002] The slag produced by blast furnace smelting can be widely used to make slag cement, heat insulation materials and other building materials after treatment. The blast furnace slag treatment processes adopted by most iron and steel enterprises today include drum dehydration method (Inba method and Tula method), slag pool filtration method (bottom filter method), dewatering tank type (Lhasa method), lifting dehydration type ( Stirring cage method and HK method), Jiaheng method, etc., these processes have their own characteristics, but more or less have their own shortcomings. For example, the Inba method uses a large drum to dehydrate water slag to achieve slag-water separation. This method has good treatment effect, high degree of mechanization and automation, and a good workin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B3/06
CPCY02W30/50
Inventor 苑希现刘宏伟刘建翔马保良杨山林陈瑞卿郭保善杨利军楚中延张振民刘占波
Owner XINGTAI IRON & STEEL
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