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Desulfurizing agent prepared by taking waste limestone powder as raw material and preparation method thereof

A technology of limestone powder and desulfurization agent, which is applied in the direction of fuel additives, fuel, petroleum industry, etc., can solve the problems of environmental pollution, loss of natural resources, poor desulfurization effect of desulfurization agent, etc., and achieve the effect of reducing environmental pollution and realizing comprehensive utilization of resources

Inactive Publication Date: 2018-09-04
贵州磐石高科新材有限公司
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Problems solved by technology

At the same time, in the process of mixing concrete, cleaning tank trucks, and mixers in concrete mixing stations, a large amount of concrete waste slurry is produced, which not only causes a lot of environmental pollution, but also causes the loss of natural resources and increases the cost of concrete mixing. station raw material cost
Although limestone is also used in the preparation of desulfurization agents in the prior art, the desulfurization effect of the prepared desulfurization agents is often poor, which makes the cost of desulfurization relatively high

Method used

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  • Desulfurizing agent prepared by taking waste limestone powder as raw material and preparation method thereof
  • Desulfurizing agent prepared by taking waste limestone powder as raw material and preparation method thereof
  • Desulfurizing agent prepared by taking waste limestone powder as raw material and preparation method thereof

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preparation example Construction

[0023] A kind of desulfurizing agent preparation method prepared from waste limestone powder in the present invention, comprises the following steps:

[0024] Step 1) Collect waste limestone powder: Recycle the limestone powder produced by vibrating screening of machine-made sand and gravel, the limestone powder obtained by negative pressure vacuuming or electrostatic vacuuming, and the dust and leakage produced during the process of machine-made sand and gravel processing to obtain waste limestone powder;

[0025] Step 2) Collect concrete waste: filter the waste slurry produced by the concrete mixing plant or settle naturally to obtain concrete waste slag, stack the concrete waste slag naturally, dry until the moisture content is ≤ 10%, and crush it to obtain concrete waste;

[0026] Step 3) mixing waste materials: take 14-19 parts by weight of the waste limestone powder collected in step 1), take 0-2 parts by weight of the concrete waste collected in step 2), and mix the ab...

Embodiment 1

[0035] The raw material composition of the desulfurizer is 14kg of waste limestone powder by weight.

Embodiment 2

[0037] The raw material components of the desulfurizer are 19kg of waste limestone powder, 2kg of concrete waste, and 4kg of coal gangue by weight; the calcium carbonate content in the coal gangue is 90%.

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Abstract

The invention relates to the technical field of desulfurizing agents, in particular to a desulfurizing agent prepared by taking waste limestone powder as a raw material and a preparation method thereof. The desulfurizing agent with low cost is prepared by crushing a certain mass ratio of waste limestone powder, concrete waste materials and limestone gangue, mixing, stirring and adjusting the content of calcium carbonate in an ingredient. Therefore, the waste limestone powder and the waste limestone powder with larger mud content can be comprehensively utilized, a machine-made sand aggregate value-added product is improved, the defects that concrete solid wastes are produced by a concrete mixing station, and the environmental pollution is caused by the discharge of mixing station wastes areovercome, and the resource comprehensive utilization is realized. Not only is the formability of the desulfurizing agent optimal, but also the utilization rate of calcium oxide in the desulfurizing agent is improved.

Description

technical field [0001] The invention relates to the technical field of a desulfurizing agent, in particular to a desulfurizing agent prepared from waste limestone powder as a raw material and a preparation method thereof. Background technique [0002] The production process of machine-made sand and gravel aggregate is often accompanied by a large amount of waste limestone powder. If there is a lot of mud content, it will not be able to be used in production; Inconvenient; for example, in the process of producing sand and gravel aggregates, the dust attached to the surface of the aggregate particles is recycled to avoid the defects of dust causing environmental pollution. The obtained limestone powder is large, and it is often accompanied by a large amount of soil recovery, resulting in The commercial application prospects of recycled materials in concrete are not high. At the same time, in the process of mixing concrete, cleaning tank trucks, and mixers in concrete mixing s...

Claims

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Application Information

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IPC IPC(8): C10L9/10C10L10/00
CPCC10L9/10C10L10/00C10L2200/029C10L2290/08C10L2290/24C10L2290/28
Inventor 王贵忠郭爱
Owner 贵州磐石高科新材有限公司
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