Grinding activating aid for ferronickel slag, preparation and application method thereof

A nickel-iron slag and grinding technology, applied in the field of grinding aids, can solve the problems of life and environmental pollution, low comprehensive utilization rate, polluted water bodies, etc., and achieve the effects of low price, simple configuration and excellent performance

Active Publication Date: 2021-06-29
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the comprehensive utilization rate of these waste nickel-iron slags in our country is low, and they are mostly stacked in the open air, which has brought about a series of social problems such as land occupation, soil pollution, and water pollution.
At present, the annual discharge of ferronickel slag in our country has exceeded 5 million tons, and the cumulative accumulation of ferronickel slag has reached about 40 million tons. However, the effective comprehensive utilization rate of ferronickel slag is only about 15-25%. The left and right ferronickel slag is used as mine underground filler, most of which are piled up in the yard
Such a large amount of ferronickel slag not only occupies a large amount of land, but also pollutes people's lives and the environment

Method used

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  • Grinding activating aid for ferronickel slag, preparation and application method thereof
  • Grinding activating aid for ferronickel slag, preparation and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1: The raw material ratio and preparation and application steps of preparing nickel-iron slag grinding activation aid in this embodiment are as follows: according to 15 parts of triethanolamine palmitate, 12 parts of lignosulfonate, 10 parts of sodium sulfate, 63 parts of water are configured.

[0042] The solution was stirred and mixed, sealed and allowed to stand for 24 hours. The solution is poured into a container, and evenly sprayed on the ferronickel slag, and the spraying amount is 0.15% of the mass of the ferronickel slag. Grind the ferronickel slag sprayed with grinding aids into ferronickel slag powder with a ball mill, then mix it with ferronickel slag powder: Portland cement = 30:70, and carry out the mortar strength test.

Embodiment 2

[0043] Embodiment 2: In this embodiment, the raw material ratio, preparation and application steps of the activator for ferronickel slag grinding are as follows: according to 15 parts of triethanolamine palmitate, 12 parts of lignosulfonate, and 10 parts of thiocyanic acid Sodium, 63 parts of water are configured.

[0044] Stir and mix the solution, seal and let stand for 24 hours, pour the solution into a container, and evenly spray on the ferronickel slag, the spraying amount is 0.15% of the mass of the ferronickel slag. Place the ferronickel slag sprayed with grinding aid at room temperature for 1 day, grind it into ferronickel slag powder with a ball mill, then mix it with ferronickel slag powder: Portland cement = 30:70, and carry out the mortar strength test .

Embodiment 3

[0045] Embodiment 3: In this embodiment, the raw material ratio, preparation and application steps of preparing the activation aid for nickel-iron slag grinding are as follows: according to 15 parts of triethanolamine palmitate, 12 parts of lignosulfonate, and 10 parts of sodium silicate , 63 parts of water for configuration.

[0046] Stir and mix the solution, seal and let it stand for 24 hours, pour the solution into a pressure vessel, and evenly spray it on the ferronickel slag, the spraying amount is 0.15% of the mass of the ferronickel slag. Place the ferronickel slag sprayed with grinding aid at room temperature for 1 day, grind it into ferronickel slag powder with a ball mill, then mix it with ferronickel slag powder: Portland cement = 30:70, and carry out the mortar strength test .

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Abstract

The invention discloses a grinding activating aid for ferronickel slag, a preparation method and an application method thereof. The ferronickel slag grinding aid is prepared in proportion from triethanolamine palmitate, a water reducer, an inorganic salt and water. The invention also discloses a preparation and application method comprising the grinding aid. By doping the grinding aid prepared by the present invention into ferronickel slag, not only the grinding effect of ferronickel slag can be improved, but also the hydration activity of ferronickel slag can be improved by more than 15%, which can improve the performance of ferronickel slag in cement And the mixing amount in cement concrete provides effective measures for the comprehensive utilization of ferronickel slag. The invention has the advantages of low price, simple configuration, excellent performance, remarkable effect of increasing production and energy saving, etc., and has good social and economic benefits.

Description

technical field [0001] The invention belongs to the field of grinding aids, and in particular relates to a grinding activation aid for ferronickel slag, a preparation method and an application method thereof. Background technique [0002] my country's metallurgical industry produces a large number of various metal materials every year, and a large amount of metallurgical waste slag will be generated during the production of metal materials. The massive accumulation of metallurgical waste slag will not only cause environmental pollution, but also cause a lot of waste of resources. [0003] Ferronickel slag is the solid waste slag produced by smelting nickel-iron alloy, that is, a kind of granulated ferronickel slag formed after the high-temperature melt is quenched by water. Different types such as iron slag have great differences in chemical composition due to different ore sources and smelting processes, among which SiO 2 Content 30%~50%, Fe 2 o 3 Content 30%~60%, CaO c...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C04B24/18C04B7/19C04B103/52
CPCC04B7/19C04B40/0039C04B2103/52C04B24/18C04B22/147C04B22/002C04B24/122C04B22/14C04B12/04Y02P40/10
Inventor张长森王毓吴其胜诸华军徐风广黎水平田亮
OwnerYANCHENG INST OF TECH