Method for mixing coal for solid-state deslagging coal chemistry industry device

A technology of slagging coal and coal blending, which is applied in the petroleum industry, coking ovens, etc., can solve the problems of low utilization rate, achieve the effects of reducing raw material costs, saving costs, and increasing melting temperature

Inactive Publication Date: 2016-05-11
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In engineering, white mud is often used as pad foundation, and the utilization rate is low

Method used

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  • Method for mixing coal for solid-state deslagging coal chemistry industry device
  • Method for mixing coal for solid-state deslagging coal chemistry industry device
  • Method for mixing coal for solid-state deslagging coal chemistry industry device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Maiduo coal from Maiduoshan Coal Mine in Ningdong Mining Area of ​​Ningxia was used as raw material coal.

[0040] (1) Detect the melting temperature of the coal ash of the Maiduo coal sample, that is, obtain the coal ash deformation temperature, softening temperature, hemispherical temperature and flow temperature of the standard coal ash sample respectively. The specific data are shown in Table 2:

[0041] Table 2 Ash melting temperature of coal ash samples, °C

[0042]

deformation temperature

softening temperature

hemispheric temperature

flow temperature

Maiduoshan coal sample

1032

1045

1067

1068

[0043] (2) Determination of the chemical composition of coal ash, mainly including acidic oxide SiO 2 、Al 2 o 3 、TiO 2 and basic oxides CaO, MgO, Fe 2 o 3 content, and calculate the ratio of the total weight of acidic oxides to the total weight of basic oxides. The specific data are shown in Table 3:

[004...

Embodiment 2

[0052] Jinfeng coal from Jinfeng Coal Mine in Ningdong Mining Area of ​​Ningxia is used as raw material coal.

[0053] (1) Detect the melting temperature of the coal ash of the Goldwind Coal sample, that is, obtain the coal ash deformation temperature, softening temperature, hemispherical temperature and flow temperature of the standard coal ash sample respectively. The specific data are shown in Table 5:

[0054] Table 5 Ash melting temperature of coal ash sample, ℃

[0055]

deformation temperature

softening temperature

hemispheric temperature

flow temperature

Jinfeng coal sample

1102

1146

1152

1161

[0056] (2) Determination of the chemical composition of coal ash, mainly including acidic oxide SiO 2 、Al 2 o 3 、TiO 2 and basic oxides CaO, MgO, Fe 2 o 3 content, and calculate the ratio of the total weight of acidic oxides to the total weight of basic oxides. The specific data are shown in Table 6:

[0057] Tab...

Embodiment 3

[0064] The Meihuajing coal from the Meihuajing Coal Mine in the Ningdong Mining Area of ​​Ningxia is used as the raw material coal.

[0065] (1) Detect the melting temperature of the coal ash of the Meihuajing coal sample, that is, obtain the coal ash deformation temperature, softening temperature, hemispherical temperature and flow temperature of the standard coal ash sample respectively. The specific data are shown in Table 8:

[0066] Table 8 Ash melting temperature of coal ash sample, ℃

[0067]

deformation temperature

softening temperature

hemispheric temperature

flow temperature

Meihuajing coal sample

1081

1093

1111

1148

[0068] (2) Determination of the chemical composition of coal ash, mainly including acidic oxide SiO 2 、Al 2 o 3 、TiO 2 and basic oxides CaO, MgO, Fe 2 o 3 content, and calculate the ratio of the total weight of acidic oxides to the total weight of basic oxides. The specific data are show...

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Abstract

The invention discloses a method for mixing coal for a solid-state deslagging coal chemistry industry device. The method includes: adding an additive into raw coal, wherein through the additive, a ratio of total weight of acidic oxide to that of alkaline oxide in coal ash obtained after a mixture of the raw coal and the additive is burnt is not less than 2.5. Acidic-alkaline substance ratio is changed by controlling a mass ratio of acidic and alkaline oxide in coal ash and adding different additives according to different coal ash components, so that coal ash melting temperature is increased; not aiming at specific substances in specific raw coal and coal ash, the method is conducive to being widely applied.

Description

technical field [0001] The invention relates to the field of coal combustion and utilization, in particular to a coal blending method for coal used in a solid slag discharge coal chemical plant. Background technique [0002] my country's energy structure is characterized by rich coal, short of oil, and little gas. From the analysis of my country's coal-based energy structure and the international energy market situation, it is determined that my country must base itself on national conditions and vigorously develop clean coal technology. Among them, coal gasification is the core technology for clean and efficient utilization of coal, and it is the basis for the development of coal-based bulk chemicals and liquid fuel synthesis, advanced coal gasification combined cycle power generation (IGCC), polygeneration systems, hydrogen production and other process industries. Common technologies, key technologies and leading technologies of the industry. [0003] Currently industria...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B57/06
CPCC10B57/06
Inventor 夏支文杨磊井云环张玉柱蒙军罗春桃杨英马乐波
Owner CHNA ENERGY INVESTMENT CORP LTD
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