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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

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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 mechanically, and the activity is activated slowly during the hydration process, and the activation rate is low. The potential activity of phosphorus tailings cannot be fully utilized

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

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Experimental program
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Embodiment 1

[0029] According to the technical scheme of the present invention, a light-weight building block material is prepared. In parts by weight, its components are 60.1 parts of phosphorus tailings, 15.0 parts of carbide slag, 15.0 parts of coal gangue, 2.0 parts of phosphogypsum, and 7.0 parts of cement. 2.0 parts of aluminum powder, 0.5 parts of polymerized polyol grinding aid, 0.4 parts of polycarboxylate superplasticizer, and water-to-material ratio of 0.65.

[0030] Specific preparation method:

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

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

Embodiment 2

[0037] According to the technical scheme of the present invention, a light-weight building block material is prepared, and its components are 55.0 parts of phosphorous tailings, 14.0 parts of carbide slag, 23.4 parts of steel slag, 3.0 parts of phosphogypsum, and 6.0 parts of cement in parts by weight. , 2.4 parts of aluminum powder, 0.45 parts of triisopropanolamine grinding aid, 0.7 parts of melamine-based water reducer, and a water-to-material ratio of 0.6.

[0038] Specific preparation method:

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

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

Embodiment 3

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

[0046] Specific preparation method:

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

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

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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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