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Biomass binder for clean briquette and preparation method thereof

A biomass and binder technology is applied in the field of biomass binder for clean briquette and its preparation, which can solve the problems of high volatile content in combustion carried-out, insufficient cohesive coal reserves and high ash content, and achieves the goal of making Take the effect of low risk, strong bonding ability and good liquidity

Inactive Publication Date: 2016-12-07
李达 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using the above raw materials and methods to prepare briquettes, in addition to the lack of caking coal reserves in my country, the operating temperature is high during the production process, and there are many combustion products, that is, high volatile content and high ash content, which easily cause secondary pollution.

Method used

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  • Biomass binder for clean briquette and preparation method thereof

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Effect test

Embodiment 1

[0028] Embodiment 1: A biomass binder for clean briquettes, comprising the following raw material composition by weight ratio: 10 parts of cornstarch, 5 parts of corn stalks, 5 parts of sawdust, 3 parts of bentonite, 10 parts of sodium hydroxide, 40 parts of water.

[0029] The preparation method of the present embodiment is as follows:

[0030] (1) The cornstarch, corn stalks, sawdust and bentonite are respectively ground by a ball mill and sieved, and the sieving particle size is not less than 200 mesh;

[0031] (2) The corn starch, corn stalks, sawdust and bentonite powder in the step (1) are mixed according to the weight ratio of 10:5:5:3;

[0032] (3) Sodium hydroxide with a mass purity of not less than 99% is dissolved in water at 40-50° C., and the sodium hydroxide and water are stirred evenly according to the weight ratio of 10:40;

[0033] (4) atomize and spray the hot sodium hydroxide solution obtained in step (3) into the mixture obtained in step (2) in a stirrer,...

Embodiment 2

[0034] Embodiment 2: A biomass binder for clean briquettes, comprising the following raw material composition by weight ratio: 15 parts of cornstarch, 10 parts of corn stalks, 8 parts of sawdust, 5 parts of bentonite, 15 parts of sodium hydroxide, 60 parts of water.

[0035] The preparation method of the present embodiment is as follows:

[0036] (1) The cornstarch, corn stalks, sawdust and bentonite are respectively ground by a ball mill and sieved, and the sieving particle size is not less than 200 mesh;

[0037] (2) The corn starch, corn stalks, sawdust and bentonite powder in the step (1) are mixed according to the weight ratio of 15:10:8:5;

[0038] (3) Sodium hydroxide with a mass purity of not less than 99% is dissolved in water at 45-75° C., and the sodium hydroxide and water are stirred evenly according to a weight ratio of 10:40;

[0039] (4) atomize and spray the hot sodium hydroxide solution obtained in step (3) into the mixture obtained in step (2) in a stirrer,...

Embodiment 3

[0040] Embodiment 3: A biomass binder for clean briquettes, comprising the following raw material composition by weight ratio: 20 parts of cornstarch, 15 parts of corn stalks, 10 parts of sawdust, 8 parts of bentonite, 20 parts of sodium hydroxide, 80 parts of water.

[0041] The preparation method of the present embodiment is as follows:

[0042] (1) The cornstarch, corn stalks, sawdust and bentonite are respectively ground by a ball mill and sieved, and the sieving particle size is not less than 200 mesh;

[0043] (2) The corn starch, corn stalks, sawdust and bentonite powder in the step (1) are mixed according to the weight ratio of 15:10:8:5;

[0044] (3) Sodium hydroxide having a mass purity of not less than 99% is dissolved in water at 45-80° C., and the sodium hydroxide and water are stirred evenly according to a weight ratio of 10:40;

[0045] (4) atomize and spray the hot sodium hydroxide solution obtained in step (3) into the mixture obtained in step (2) in a stirr...

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Abstract

The invention discloses biomass binder for clean briquette. The biomass binder is prepared from the following raw materials in parts by weight: 10-20 parts of corn starch, 5-15 parts of corn stalks, 5-10 parts of sawdust, 3-8 parts of bentonite, 10-20 parts of sodium hydroxide and 40-80 parts of water. Furthermore, the invention discloses a method for preparing the biomass binder for clean briquette. According to the method, corn stalks, sawdust and other industrial and agricultural waste are turned into wealth, and are matched with corn starch to improve the utilization of agricultural and forest waste biomass; and high-additional-value deep processing means is provided to corn development. When the biomass binder is used for producing a clean briquette, the cold strength, heat strength and heat stability can be improved after a coal briquette is molded, and the undersize fraction is reduced; and the preparation method has the advantages of simple manufacture equipment, convenience in process, short time consumption and small preparation risk.

Description

technical field [0001] The invention relates to the technical field of pulverized coal molding, in particular to a biomass binder for clean coal molding and a preparation method thereof. Background technique [0002] At present, briquettes are usually pulverized with some low-quality coal and processed under a certain pressure to form coal products with a certain shape and certain physical and chemical properties. Some binders need to be added during the preparation process; The binder mainly uses coal tar, asphalt, clay, etc. as raw materials. The briquette prepared with this binder is easy to emit a large amount of toxic and harmful gases such as carbon dioxide and sulfur dioxide during industrial or civil combustion, causing greenhouse effect and acid rain to pollute the environment. ; my country is rich in corn, which is planted in a wide range of areas, the output ranks third in the world, and the price is low. Corn stalks are rich in nutrients and available chemical com...

Claims

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Application Information

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IPC IPC(8): C10L5/12C10L5/14
CPCC10L5/12C10L5/14Y02E50/30
Inventor 李娜王志江韩晓东苏宝金李鑫
Owner 李达
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