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Fly ash and preparation method thereof

A technology of fly ash and stone powder, applied in the field of fly ash and its preparation, can solve problems such as environmental pollution, achieve the effects of reducing environmental pollution, reducing preparation costs, and improving the environment

Inactive Publication Date: 2020-11-17
陈谓清
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, a large amount of waste stone powder produced in the stone processing process is basically directly discharged into the environment, causing great pollution to the environment.

Method used

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  • Fly ash and preparation method thereof
  • Fly ash and preparation method thereof
  • Fly ash and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Step 1, first weigh each component by the following parts by weight:

[0031]

[0032] The mesh number of described steel powder is 325-350 mesh;

[0033] Step 2: Put the stone powder into the grinder to grind, and get the ground stone powder above 325 mesh;

[0034] Step 3: put the steel powder, ground stone powder obtained in step 2, sodium carbonate, sodium sulfate, and water reducer in turn into a powder feeder, stir evenly, and then pack to obtain the fly ash.

Embodiment 2

[0036] Step 1, first weigh each component by the following parts by weight:

[0037]

[0038]

[0039] The mesh number of the steel powder is 325-350 mesh.

[0040] Step 2: Put the stone powder into the grinder to grind, and get the ground stone powder above 325 mesh;

[0041] Step 3: put the steel powder, ground stone powder obtained in step 2, sodium carbonate, sodium sulfate, and water reducer in turn into a powder feeder, stir evenly, and then pack to obtain the fly ash.

Embodiment 3

[0043] Step 1, first weigh each component by the following parts by weight:

[0044]

[0045] The mesh number of the steel powder is 325-350 mesh, and the grinding aid is triethanolamine.

[0046] Step 2: Put the stone powder and grinding aid into the grinder to grind, and get the ground stone powder above 325 mesh;

[0047] Step 3: put the steel powder, ground stone powder obtained in step 2, sodium carbonate, sodium sulfate, and water reducer in turn into a powder feeder, stir evenly, and then pack to obtain the fly ash.

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Abstract

The invention relates to a preparation method of fly ash. The preparation method comprises the following steps: putting stone powder or a mixture of the stone powder and a grinding aid into a grinderfor grinding to obtain ground stone powder with a size of 325 meshes or above; and sequentially putting steel powder, the obtained ground stone powder, sodium carbonate, sodium sulfate and a water reducing agent into a powder machine, carrying out uniform stirring, and conducting sub-packaging to obtain the fly ash. According to the invention, the waste stone powder is used for replacing a material for producing the fly ash, so the comprehensive utilization of the waste stone powder is realized, the environmental pollution can be reduced, the environment is improved, the preparation cost of the fly ash can be reduced, and the labor cost is reduced. The fly ash is prepared from the waste stone powder; the preparation method is simple in process; and the prepared fly ash can reach the standard of secondary fly ash and contains active substances.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a fly ash and a preparation method thereof. Background technique [0002] Fly ash mainly refers to tiny ash particles discharged from the combustion process of fuel (mainly coal), and its particle size is generally between 1 and 100 μm. Fine ash collected in the flue gas of coal-fired power plants or thermal power plants, etc. If the fly ash is not collected and treated, it will cause air pollution, and if it enters the water, it will block the river. [0003] After development and research in our country, fly ash has been widely used in construction, building materials, water conservancy and other departments. The comprehensive utilization of fly ash mainly includes several aspects, such as conventional utilization of cement raw materials, cement mixture materials, large-scale water conservancy projects, pumped concrete, and advanced utilization methods such as large-volume c...

Claims

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Application Information

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IPC IPC(8): C04B24/12C04B24/04C04B18/12C04B22/10C04B22/14C04B22/04
CPCC04B40/0042C04B18/12C04B22/10C04B22/147C04B2103/302C04B2103/52C04B22/04Y02W30/91
Inventor 陈谓清
Owner 陈谓清
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