Light-weight block prepared by taking 'phosphorus solid waste' as raw material and preparation method of light-weight block

A technology for phosphorus solid waste and raw materials, applied in the field of building materials, can solve the problems of low excitation rate, slow activation of activity, and inability to give full play to the potential activity of phosphorus tailings, achieving low production cost, high profit and waste rate, and broad market application. Foreground effect

Active Publication Date: 2016-01-27
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, "A Phosphorus Slag-Phosphorus Tailings Foamed Concrete Block and Its Preparation Method" (CN201310611940.X), phosphorus tailings and other raw materials are simply mixed

Method used

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  • Light-weight block prepared by taking 'phosphorus solid waste' as raw material and preparation method of light-weight block
  • Light-weight block prepared by taking 'phosphorus solid waste' as raw material and preparation method of light-weight block
  • Light-weight block prepared by taking 'phosphorus solid waste' as raw material and preparation method of light-weight block

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example 1:

[0029] According to the technical scheme of the present invention, a lightweight block material is prepared. In parts by weight, its components are 60.1 parts of phosphate tailings, 15.0 parts of calcium carbide slag, 15.0 parts of coal gangue, 2.0 parts of phosphogypsum, and 7.0 parts of cement. Parts, 2.0 parts of aluminum powder, 0.5 parts of polymeric polyol grinding aids, 0.4 parts of polycarboxylic acid water reducing agent, and 0.65 parts of water to material ratio.

[0030] Specific preparation method:

[0031] (1) Weigh calcium carbide slag, phosphate tailings, phosphogypsum, and coal gangue according to the above ratio, and place them in a crusher to crush them until the average particle size is 2-20 mm.

[0032] (2) Put the above crushed material in a wet mill, add 0.5 parts of water and a grinding aid according to the ratio of water to material ratio of 0.65, ball mill for 5 hours, until the specific surface area is 350-1200m 2 / kg, the average particle...

Example Embodiment

[0036] Example 2:

[0037] According to the technical scheme of the present invention, a lightweight block material is prepared. In parts by weight, its components are 55.0 parts of phosphate tailings, 14.0 parts of calcium carbide slag, 23.4 parts of steel slag, 3.0 parts of phosphogypsum, and 6.0 parts of cement. , 2.4 parts of aluminum powder, 0.45 parts of triisopropanolamine grinding aids, 0.7 parts of melamine water-reducing agents, and 0.6 parts of water to material ratio.

[0038] Specific preparation method:

[0039] (1) Weigh calcium carbide slag, phosphate tailings, phosphogypsum, and steel slag according to the above-mentioned ratio, and place them in a crusher until the average particle size is 2-20 mm.

[0040] (2) Put the above-mentioned crushed material in a wet mill, add 0.45 parts of water and grinding aid according to the ratio of water to material ratio of 0.6, and ball mill for 5 hours until the specific surface area is 350-1200m 2 / kg, the average particle diamet...

Example Embodiment

[0044] Example 3:

[0045] According to the technical scheme of the present invention, a lightweight block material is prepared. In parts by weight, its components are 65.0 parts of phosphorus tailings, 10.0 parts of calcium carbide slag, 8 parts of coal gangue, 4.3 parts of fly ash, and phosphorus 3.0 parts of gypsum, 6.0 parts of cement, 2.0 parts of aluminum powder, 0.5 parts of triethanolamine grinding aids, 0.5 parts of melamine-based water reducing agents, and water to material ratio of 0.7.

[0046] Specific preparation method:

[0047] (1) Weigh calcium carbide slag, phosphate tailings, phosphogypsum, and coal gangue according to the above ratio, and place them in a crusher to crush them until the average particle size is 2-20 mm.

[0048] (2) Put the above-mentioned crushed material in a wet mill, add water, 0.5 parts of grinding aid, and fly ash according to the ratio of water to material ratio of 0.7, and ball mill for 5.5h until the specific surface area is 350-1200m 2 / kg...

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Abstract

The invention relates to a light-weight block prepared by taking 'phosphorus solid waste' as a raw material and a preparation method of the light-weight block. The light-weight block and the method solve the problems of complicated technology, high energy consumption, long production period, low production cost and low waste utilization rate of the existing light-weight block preparation. The light-weight block is prepared by taking 55-65 parts of phosphorus tailing, 10-15 parts of carbide slag, 10-20 parts of salic active mineral admixture, 2-3 parts of phosphogypsum, 6-8 parts of cement and 3-5 parts of additive as raw materials, and carrying out crushing, wet ball milling, stirring, forming, gas forming, trimming, and steam pressing. The block is simple to construct, has a high waste utilization rate, can effectively stimulate potential activity of phosphorus tailings, saves energy, reduces consumption, and is environmentally friendly, low in production cost, low in cost, and outstanding in performance, and the raw materials are not required to be pre-dried, and are easy to obtain.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a lightweight building block prepared from "phosphorus solid waste" as a raw material and a preparation method thereof. Background technique [0002] Phosphorus tailings are solid wastes that cannot be utilized during the flotation of phosphate ore concentrates. my country is a big country of phosphate rock, and the total amount of proven phosphate rock resources ranks second in the world, but the main feature is "more low-grade ore and less rich ore". The vast majority of phosphate rock needs to be enriched by ore dressing to meet the production requirements of phosphoric acid and high-concentration phosphate fertilizer. While some high-grade phosphate rock is being used in ore dressing, a large amount of phosphorus tailings are discarded, and the accumulated large amount of phosphorus tailings will dissolve phosphorus and fluorine. and other harmful components, causing seriou...

Claims

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Application Information

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IPC IPC(8): C04B28/02C04B38/02C04B22/14C04B18/04C04B18/12C04B22/04
CPCY02W30/91
Inventor 贺行洋王迎斌代飞苏英曾三海李颜娟李玉博孙艺恒储劲松江波柯凯秦景燕王传辉刘明
Owner HUBEI UNIV OF TECH
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