Method for improving nickel slag grinding efficiency and activity

A nickel slag powder and efficiency technology, which is applied in the field of improving the efficiency and activity of nickel slag grinding, can solve the problem of affecting the grinding efficiency and particle gradation of nickel slag powder, increasing energy consumption and production cost of nickel slag grinding, and hindering nickel slag grinding. Grinding and other problems, to achieve significant economic and social benefits, solve the effect of ball wrapping and agglomeration, and reduce the power consumption of grinding

Active Publication Date: 2013-02-27
福建源鑫环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the Fe of nickel slag 2 o 3 , The content of heavy metal elements and alloys is obviously too high, resulting in greater toughness and harder grinding of nickel slag
The observation of nickel slag grinding found that nickel slag is prone to balling and agglomeration, which hinders the further grinding of nickel slag, thus seriously affecting the grinding efficiency and particle gradation of nickel slag powder, making the grinding of nickel slag Increased energy consumption and production costs

Method used

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  • Method for improving nickel slag grinding efficiency and activity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Component Weight percent

[0016] Nickel slag 96%

[0017] Limestone 4%

[0018] Put the above materials into a ball mill, and after mixing for a certain period of time, observe the degree of encapsulation, and measure the specific surface area and activity index of the nickel slag powder. The results are shown in Table 1.

Embodiment 2

[0020] Nickel slag 94%

[0021] Limestone 6%

[0022] Put the above materials into a ball mill, and after mixing for a certain period of time, observe the degree of encapsulation, and measure the specific surface area and activity index of the nickel slag powder. The results are shown in Table 1.

Embodiment 3

[0024] Nickel slag 92%

[0025] Limestone 8%

[0026] Put the above materials into a ball mill, and after mixing for a certain period of time, observe the degree of encapsulation, and measure the specific surface area and activity index of the nickel slag powder. The results are shown in Table 1.

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Abstract

The invention discloses a method for improving nickel slag grinding efficiency and activity, and belongs to the technical field of building materials. 2-10wt% of limestone and 90-98wt% of nickel slag are mixed and then added into a mill for mixed grinding for 60-90min, the problems of balling and conglobation in nickel slag grinding process can be effectively solved, grinding efficiency is improved, and grinding power consumption is reduced. Besides, the grain composition and the activity of the nickel slag are obviously improved. The method is simple in process, low in cost and easy to popularize and apply, and has remarkable economic and social benefits.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a method for improving the grinding efficiency and activity of nickel slag. Background technique [0002] Nickel slag is solid waste slag produced by smelting nickel-iron alloy, which is mainly used for stainless steel production, so nickel slag is also called stainless steel slag or nickel-iron slag. The main chemical components in nickel slag include SiO 2 、Al 2 o 3 , CaO, MgO and Fe 2 o 3 , and some heavy metal elements and alloys. [0003] Compared with blast furnace slag, nickel slag has significantly less CaO content, so its activity is lower. In addition, the Fe of nickel slag 2 o 3 , Heavy metal elements and alloy content are obviously too much, resulting in greater toughness and harder grinding of nickel slag. The observation of nickel slag grinding found that nickel slag is prone to balling and agglomeration, which hinders the further gri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B18/14
CPCY02W30/91
Inventor 杨全兵陈必松张雅钦罗永斌陈尚鸿陈尚霖
Owner 福建源鑫环保科技有限公司
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