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System and method for steelmaking sludge sintering slaking

A technology for steel-making sludge and sludge, applied in the direction of manufacturing converters, etc., can solve the problems of a large amount of operating capital, long turnaround time, and high technical requirements, and achieve the effects of reducing recycling costs, reducing process failure rates, and fast switching.

Inactive Publication Date: 2017-08-04
SHANDONG IRON & STEEL CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0004] Both of them use technological methods after concentration treatment, which have long turnaround time, large floor space, high technical requirements, and require a large investment of operating funds

Method used

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  • System and method for steelmaking sludge sintering slaking

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Embodiment Construction

[0028] The following are examples of the present invention, which are only used to explain the present invention and not limit it.

[0029] see figure 1 , the system for sintering and digesting steelmaking sludge provided by the present invention typically includes a sludge direct pipeline and a sintering sludge pretreatment pool 6, wherein:

[0030] A steelmaking sludge water pump 1 is installed on the sludge direct transportation pipeline, and the sludge direct transportation pipeline is connected to a sintered sludge pretreatment pool 6, and a heating pipeline 14 is arranged in the sintered sludge pretreatment pool 6 , compressed gas pipeline and sludge sintering pipeline 18, the sintered sludge pump 25 is arranged on the sludge sintering pipeline 18, and the sintered sludge pipeline 18 is also connected with the sintered sludge nozzle 19; the compression Gas pipeline and compressed gas source connection;

[0031] The steelmaking sludge enters the sintered sludge pretreat...

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Abstract

The invention provides a system for sintering and digesting steelmaking sludge, which includes a sludge direct transportation pipeline and a sintering sludge pretreatment pool, wherein: a steelmaking sludge water pump is arranged on the sludge direct transportation pipeline, and the The sludge direct transportation pipeline is connected to the sintered sludge pretreatment pool, and the sintered sludge pretreatment pool is provided with a heating pipeline, a compressed gas pipeline and a sludge sintering pipeline, and the sintered sludge pump is installed in the sludge On the sintering pipeline, the sintering sludge pipeline is also connected to the sintering sludge nozzle; the compressed gas pipeline is connected to the compressed gas source; the steelmaking sludge passes through the sludge direct transport pipeline through the steelmaking sludge water pump Enter the sintered sludge pretreatment pool, and stir it through the compressed gas pipeline, and heat it through the heating pipeline. The invention also provides a method for sintering and digesting steelmaking sludge by using the system. The invention can ensure the stable and controllable sintering production.

Description

technical field [0001] The invention belongs to the technical field of sintering production, and specifically relates to a system and method for sintering and digesting steelmaking sludge. The invention achieves the purpose of sintering and efficiently digesting steelmaking sludge through pre-intensified mixing. Background technique [0002] Steelmaking sludge is the sludge produced by wet dedusting in steelworks. It is a by-product of oxygen top-blown converter dust removal. It is a valuable secondary resource. It has the characteristics of high substance content (two-basic alkalinity up to 2.5), fine particle size (≤0.074mm content up to 90%), high water content and high viscosity. Because the relative grade of steelmaking sludge is relatively high, it has certain recycling value. It can be used as raw material for sintering and pelletizing in production. Reasonable use of steelmaking sludge can not only replace part of iron-containing raw materials, but also replace part ...

Claims

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Application Information

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IPC IPC(8): C22B1/16C21C5/38
CPCC22B1/16C21C5/38
Inventor 孙建设王继永侯纪宝徐春玲
Owner SHANDONG IRON & STEEL CO LTD
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