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A kind of briquette composite binder and its preparation method and application

A technology of binder and briquette, which is applied in the field of briquette binder and its preparation, can solve the problems of weak briquette strength, poor coke quality, and poor sulfur-fixing effect of briquette binder, and achieves high combustion value. , Improve the molding energy and achieve the effect of full utilization

Active Publication Date: 2020-08-04
BEIJING HUASHI UNITED ENERGY TECH & DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, what the present invention aims to solve is the problem of poor sulfur-fixing effect of the existing briquette binder, weak briquette strength, and poor coke quality.

Method used

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  • A kind of briquette composite binder and its preparation method and application
  • A kind of briquette composite binder and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Present embodiment provides a kind of briquette binder, comprises the component of following weight ratio:

[0038] Coke pitch: biomass modified material: inorganic magnesium-based curing agent: auxiliary agent is 12.5:16.5:2.75:0.2;

[0039]As an embodiment of the present invention, in this embodiment, the coke pitch is the pitch produced in the suspended bed process; the biomass modified material is rice straw modified by sodium hydroxide; the inorganic magnesium-based solidification The agent is MgO; the auxiliary agent is a surfactant with a content of 45wt% and a pore-forming agent with a content of 55wt%, wherein the surfactant is potassium stearate, and the pore-forming agent is ammonium chloride. As a changeable embodiment of the present invention, the surfactant can be one or more of sodium stearate, sodium stearate, calcium stearate; the pore-forming agent can be ammonium chloride, ammonium carbonate, carbonic acid One or more in ammonium hydrogen; The auxili...

Embodiment 2

[0047] Present embodiment provides a kind of briquette binder, comprises the component of following weight ratio:

[0048] Coke pitch: biomass modified material: inorganic magnesium-based curing agent: auxiliary agent is 5:25:0.5:0.3;

[0049] As an embodiment of the present invention, in this embodiment, the coke pitch is the pitch produced in the suspended bed process; the biomass modified material is corn straw modified by sodium hydroxide; the inorganic magnesium-based Curing agent is MgCl 2 ; The auxiliary agent is a surfactant with a content of 30wt% and a pore-forming agent with a content of 70wt%, wherein the surfactant is sodium stearate, and the pore-forming agent is ammonium carbonate.

[0050] The preparation method of described briquette composite binder comprises the following steps:

[0051] S1. Add corn stalk particles with a crushed particle size of 3.5 cm to 3% sodium hydroxide lye, and carry out hydrolysis reaction on the corn stalk particles at 85 ° C. Th...

Embodiment 3

[0057] Present embodiment provides a kind of briquette binder, comprises the component of following weight ratio:

[0058] Coke pitch: biomass modified material: inorganic magnesium-based curing agent: auxiliary agent is 20:8:5:0.1;

[0059] As an embodiment of the present invention, in this embodiment, the coke pitch is the pitch produced in the suspended bed process; the biomass modified material is rice straw and corn stalk modified by sodium hydroxide; the inorganic Magnesium based hardeners are MgO and MgCl 2 ; The auxiliary agent is a surfactant with a content of 60wt% and a pore-forming agent with a content of 40wt%, wherein the surfactant is calcium stearate, and the pore-forming agent is ammonium bicarbonate.

[0060] The preparation method of described briquette composite binder comprises the following steps:

[0061] S1. Add corn stalks and rice straw granules with a crushed particle size of 5 cm to 1% sodium hydroxide lye, and perform the first hydrolysis reactio...

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Abstract

The invention relates to the technical field of coal processing, and discloses a briquette binder, a preparation method and applications thereof, wherein the briquette binder comprises coking coal pitch, a biomass modification material, an inorganic magnesium-based curing agent and an auxiliary agent according to a weight ratio of (5-20):(8-25):(0.5-5):(0.1-0.3), wherein the auxiliary agent comprises at least one selected from a surfactant, a pore forming agent, a dehydrating agent and a cross-linking agent. According to the present invention, under the synergistic effect of various components, the briquette binder can complete the pulverized coal cementation process, the formed briquette can meet the industrial coal demand, the waste in the industrial and agricultural production process is solved, and the efficient use of resources is improved; and by adding the inorganic magnesium-based curing agent and the auxiliary agent, the strength and the impermeability of the briquette are enhanced, the combustion of the briquette is promoted, and the good sulfur fixation effect is provided.

Description

technical field [0001] The invention relates to the technical field of coal processing, in particular to a molded coal binder and a preparation method thereof. Background technique [0002] my country is the largest coal producer and consumer in the world, and it is estimated that coal will still account for more than 50% of my country's primary energy consumption structure in 2050. Extensive use of coal will inevitably cause a series of environmental pollution problems, which are extremely harmful to ecological balance and human survival. Backward coal development and use technology restricts the sustainable development of the national economy, and the development of clean coal technology has become an inevitable trend. [0003] Coal briquette technology is one of the clean coal technologies, and the United Nations Energy Organization promotes briquette coal as an effective way to save energy and reduce pollution. In recent years, due to the improvement of the degree of m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L5/10
CPCC10L5/105
Inventor 李林李春桃路阳
Owner BEIJING HUASHI UNITED ENERGY TECH & DEV
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