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Biomass coal adhesive and biomass coal prepared by the same

A biomass and binder technology, which is applied in the field of biomass briquette binder, can solve the problems of not being suitable for the molding requirements of medium and low pressure molding equipment, the source of raw materials has not been researched, and the water resistance of briquette is poor, and achieves good environmental protection effects. , high strength, good waterproof effect

Inactive Publication Date: 2008-03-05
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, at present, my country's biomass briquette technology is still in the stage of experimental development and industrial demonstration in general, and has not yet formed a large-scale industry. In particular, there are still many problems to be solved in the promotion and application of boiler briquette coal. The main reasons are as follows: ① Binders with wide sources of raw materials, low cost, and simple production processes have not yet been developed; ②The mechanical properties of briquettes still need to be further improved; ③Poor waterproofness of briquettes is common; ④The molding pressure required by existing binders Higher, not suitable for the molding requirements of the existing medium and low pressure molding equipment in my country

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] In step a, the wheat straw is air-dried for 5 days, and then crushed with an agricultural grinder to straw particles with a particle diameter not greater than 3mm for later use.

[0014] Step b. Weighing a certain mass of pulverized wheat straw granules, transferring them to a container filled with a certain mass of water, the mass ratio of straw granules to water is 1:8, and soaking at room temperature for 3 days.

[0015] Step c, transfer the soaked mixture to an open reactor, add a certain amount of slaked lime, the Ca(OH) of the added slaked lime 2 content ≥ 90%, the mass ratio of slaked lime to the straw particles weighed in step b is 1:3.1, cook and stir at 95°C-100°C for 3.5 hours (including heating time), after cooking, the obtained light yellow viscous The material is the biomass briquette binder.

[0016] Step d, the obtained biomass briquette binder and pulverized coal are mixed thoroughly in a ratio of 3:7 by the dry weight of straw particles contained in t...

Embodiment 2

[0018] In step a, the wheat straw is naturally air-dried for 10 days, and then crushed with an agricultural grinder to straw particles with a particle diameter not greater than 3 mm for later use.

[0019] Step b. Weigh a certain mass of crushed wheat straw particles, transfer to a container filled with a certain quality of water, the mass ratio of the straw particles to water is 1:10, and soak at room temperature for 2.5 days.

[0020] Step c, transfer the soaked mixture to an open reactor, add a certain amount of slaked lime, the mass ratio of the added slaked lime to the straw particles weighed in step b is 1:3.15, under the condition of 95°C-100°C Cook and stir for 3 hours (including the heating time), after the cooking is completed, the obtained light yellow viscous material is the biomass briquette binder.

[0021] Step d, the obtained biomass briquette binder and pulverized coal are mixed in the ratio of 2.5:7.5 by the dry weight of straw particles contained in the bind...

Embodiment 3

[0023] In step a, the corn stalks were air-dried for 15 days, and then crushed with an agricultural grinder until the stalk particles with a particle diameter of no more than 3 mm were used for later use.

[0024] Step b. Weighing crushed corn stalk particles of a certain quality, transferring them to a container filled with water of a certain quality, the mass ratio of the stalk particles to water is 1:12, and soaking at room temperature for 1 day.

[0025] Step c, transfer the soaked mixture to an open reactor, add a certain amount of slaked lime, the Ca(OH) of the added slaked lime 2 content ≥ 95%, the mass ratio of slaked lime and the straw particles weighed in step b is 1:3.2, under stirring conditions, cook at 95°C-100°C for 2.5 hours (including heating time), after cooking, the obtained light yellow The sticky matter is the biomass briquette binder.

[0026] Step d, the obtained biomass briquette binder and pulverized coal are mixed thoroughly in the ratio of 3.5:6.5 b...

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Abstract

The present invention is one kind of biomass briquette adhesive and corresponding biomass briquette producing process. The pale yellow ropy biomass briquette adhesive is produced with crop stalk and through air drying, crushing, soaking in water, adding slaked lime and steaming while stirring. The biomass briquette adhesive has facile cheap material, high efficiency, simple production process and simple composition. The biomass briquette with high biomass adding amount and best utilization of biomass energy of crop stalk is produced through mixing the biomass briquette adhesive and powdered coal in certain ratio and extruding formation. The biomass briquette has high strength, high waterproofing performance, low burning point, high heat value and excellent sulfur fixing effect.

Description

technical field [0001] The invention relates to a biomass briquette binder and a production process of a biomass briquette made from the binder. Background technique [0002] Coal occupies an important position in my country's energy structure, and energy production and consumption have been dominated by coal for a long time, but the extensive use of coal has also brought serious environmental problems. Biomass energy has the advantages of abundant resources, renewable, clean, etc., and its application prospects are very broad. Biomass briquette technology is one of the effective ways to comprehensively utilize biomass energy and coal resources. It can not only improve coal utilization efficiency, reduce pollution, but also make full use of biomass energy. Biomass briquettes have the advantages of high volatile content, easy ignition and ignition; sulfur fixation and reduced smoke and dust generation; high strength, good water resistance, and convenient storage and transpor...

Claims

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Application Information

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IPC IPC(8): C10L5/14
CPCY02E50/30
Inventor 谌伦建黄光许
Owner HENAN POLYTECHNIC UNIV
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