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Flyash separation grinding processing technology

A treatment process and technology for fly ash, applied in grain treatment, sustainable waste treatment, solid separation, etc., can solve problems such as unsatisfactory treatment effect and poor economic benefits, achieve considerable economic and social effects, improve utilization, The effect of broad market prospects

Inactive Publication Date: 2018-12-28
盐城市鼎力新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing separation and grinding process of fly ash are treated separately, the treatment effect is not ideal, and the economic benefit is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A fly ash separation and grinding treatment process, the specific steps are as follows:

[0015] a) Sorting treatment: First, put the fly ash into the oven, control the temperature of the oven to 100°C, then put the dried fly ash into the electrostatic precipitator, and control the voltage of the electrostatic precipitator to 75KV to obtain the first fine Fly ash and the first coarse fly ash, and then the first fine fly ash and the first coarse fly ash screened and separated by the electrostatic precipitator are passed into the bag filter and the electrostatic precipitator respectively, and the temperature inside the electrostatic precipitator is controlled to be 90°C, the voltage of the electrostatic precipitator is 75KV, and the second fine fly ash, the third fine fly ash, the fourth fine fly ash and the second coarse fly ash are obtained respectively, and then the third fine fly ash Pass through the bag filter again to obtain the fifth fine fly ash and the sixth fine...

Embodiment 2

[0020] A fly ash separation and grinding treatment process, the specific steps are as follows:

[0021] a) Sorting treatment: firstly put the fly ash into the oven, control the temperature of the oven to 110°C, then put the dried fly ash into the electrostatic precipitator, control the voltage of the electrostatic precipitator to 60KV, and obtain the first fine Fly ash and the first coarse fly ash, and then the first fine fly ash and the first coarse fly ash screened and separated by the electrostatic precipitator are passed into the bag filter and the electrostatic precipitator respectively, and the temperature inside the electrostatic precipitator is controlled to be 95°C, the voltage of the electrostatic precipitator is 60KV, the second fine fly ash, the third fine fly ash, the fourth fine fly ash and the second coarse fly ash are obtained respectively, and then the third fine fly ash Pass through the bag filter again to obtain the fifth fine fly ash and the sixth fine fly ...

Embodiment 3

[0026] A fly ash separation and grinding treatment process, the specific steps are as follows:

[0027] a) Sorting treatment: firstly put the fly ash into the oven, control the temperature of the oven at 105°C, then put the dried fly ash into the electrostatic precipitator, control the voltage of the electrostatic precipitator to 70KV, and obtain the first fine Fly ash and the first coarse fly ash, and then the first fine fly ash and the first coarse fly ash screened and separated by the electrostatic precipitator are passed into the bag filter and the electrostatic precipitator respectively, and the temperature inside the electrostatic precipitator is controlled to be 93°C, the voltage of the electrostatic precipitator is 70KV, and the second fine fly ash, the third fine fly ash, the fourth fine fly ash and the second coarse fly ash are obtained respectively, and then the third fine fly ash Pass through the bag filter again to obtain the fifth fine fly ash and the sixth fine ...

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PUM

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Abstract

The invention discloses a flyash separation grinding processing technology. The flyash separation grinding processing technology comprises the following steps that (a), separation treatment is performed; and (b), grinding treatment is performed. Compared with the prior art, the flyash separation grinding processing technology has the beneficial effects that first grade fly ash and second grade flyash can be effectively screened by a bag-type dust remover and an electrostatic dust remover, through a hammer crusher and a ball mill, coarse fly ash is broken and ground rapidly and efficiently, the first grade fly ash and the second grade fly ash are screened out again through the bag-type dust remover and the electrostatic dust remover, the screened remaining coarse fly ash is subjected to crushing and grinding through the hammer crusher and the ball mill, then screening is performed by the bag-type dust remover and the electrostatic dust remover, the coarse fly ash is completely crushedand ground into the first grade fly ash and the second grade fly ash, and the utilization rate of the coarse fly ash is improved; and the flyash separation grinding processing technology combines theadvantages of separation and grinding, has considerable economic and social effects, and has broad market prospects.

Description

technical field [0001] The invention relates to the technical field of fly ash treatment, in particular to a fly ash separation and grinding process. Background technique [0002] Fly ash is the fine ash collected from the flue gas after coal combustion. Fly ash is the main solid waste discharged from coal-fired power plants. The main oxide composition of fly ash in thermal power plants in my country is: SiO2, Al2O3, FeO, Fe2O3, CaO, TiO2, etc. With the development of the power industry, the discharge of fly ash from coal-fired power plants has increased year by year, becoming one of the largest industrial wastes in my country. If a large amount of fly ash is not treated, it will generate dust and pollute the atmosphere; if it is discharged into the water system, it will cause river silting, and the toxic chemicals in it will also cause harm to human beings and organisms. However, fly ash can be used as a resource, such as as an admixture for concrete. At present, the exi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C21/00B02C23/08B03C3/155C04B20/02C04B18/08
CPCB02C21/00B02C23/08B03C3/155C04B20/02C04B20/026C04B18/08Y02W30/91
Inventor 孔加春张海军成锦秀陶卫国
Owner 盐城市鼎力新材料有限公司
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