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Molten steel slag rolling modification treatment device and method

A processing device and steel slag rolling technology, applied in the direction of recycling technology, etc., can solve problems such as the inability to effectively improve the hydraulic cementation of steel slag, improve volume stability and hydraulic cementation, and reduce the content of free calcium oxide. , the effect of simple processing methods

Active Publication Date: 2017-09-01
MCC ENERGY SAVING & ENVIRONMENTAL PROTECTION +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Roller crushing of steel slag - hot stuffy method with residual heat can quickly dissolve free calcium oxide in steel slag, but it cannot effectively improve the hydraulic gelation of steel slag

Method used

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  • Molten steel slag rolling modification treatment device and method
  • Molten steel slag rolling modification treatment device and method
  • Molten steel slag rolling modification treatment device and method

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Embodiment Construction

[0041] like figure 1 , 2 , 3 is a structural diagram of a rolling modification treatment device for molten steel slag according to the present invention, which includes a screw feeding device 1 , a rotary feeding valve 2 , a pulse feeding device 3 , and a silo 4 . The modified material is placed in the silo 4, the pulse feeding device 3 is connected to the bottom of the silo 4, the rotary feeding valve 2 is connected to the bottom of the pulse feeding device 3, and the screw feeding valve 2 is installed below the rotary feeding valve 2. Device 1, the modified material in the silo 4 is sent into the screw feeding device 1 through the pulse feeding device 3 and the rotary feeding valve 2; and the modified material is spread on the slag bed through the screw feeding device 1, wherein, the screw The feeding device 1, the rotary feeding valve 2, the pulse feeding device 3, and the silo 4 are located on the rolling crushing trolley 5, and move back and forth together with the rolli...

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Abstract

The invention relates to a molten steel slag rolling modification treatment device and method. The device comprises a screw feeding device, a rotary feed valve, a pulse feeding device and a material bin. The molten steel slag rolling modification treatment device is located on a thermal state steel slag rolling breaking trolley. The molten steel slag rolling modification treatment device and the rolling breaking trolley move jointly to scatter modifying materials to a slag bed. The treatment method is simple and convenient to operate, and high-temperature thermodynamic conditions of molten steel slag and dynamic conditions that a steel slag rolling breaker walks in a reciprocating manner to stir the steel slag are fully utilized.

Description

technical field [0001] The invention relates to a rolling modification treatment device and method for molten steel slag, belonging to the field of solid waste treatment. Background technique [0002] At present, steel slag is a kind of smelting waste slag discharged from the steelmaking industry, and its yield is about 12% to 14% of crude steel. Its comprehensive utilization has become the number one problem in steelmaking plants. The comprehensive utilization rate of steel slag in developed countries such as the United States, Europe, and Japan is above 90%, while in my country, due to the huge amount of production and the lack of effective comprehensive utilization channels, the comprehensive utilization rate of steel slag has been hovering around 30%. Currently, it is mainly used for roads. materials, backfill materials and cement, concrete raw materials, etc. The main reasons why steel slag is difficult to be popularized and applied on a large scale are as follows: (1) ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B3/06
CPCC21B3/06Y02W30/50
Inventor 杨景玲卢忠飞张亮亮闾文夏春
Owner MCC ENERGY SAVING & ENVIRONMENTAL PROTECTION
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