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Preparation method of anti-slagging biomass solid granular fuel

A solid particle and biomass technology, which is applied in the field of preparation of anti-slagging biomass solid particle fuel, can solve the problems of poor quality of particle fuel, easy slagging, low combustion rate, etc., and achieves good durability and anti-slagging effect , The process steps are simple, and the effect of reducing the slagging rate

Active Publication Date: 2014-09-24
江山华隆能源开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention aims to solve the problems that the pellet fuel obtained by the existing biomass solid pellet fuel preparation method is poor in quality, fragile, poor in durability, easy to slagging in the combustion process, corrodes the heating surface, and has a low combustion rate , provides a preparation method of anti-slagging biomass solid particle fuel. The preparation method of the present invention has simple process steps. The efficiency is strictly controlled, and the obtained biomass solid particle fuel has good durability and anti-slagging effect, and has a high combustion rate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation method of anti-slagging biomass solid particle fuel, comprising the following steps:

[0026] (1) Raw material crushing: the crop straw, sawdust and bagasse are crushed after removing impurities, and at the same time, the combustion-promoting agent and anti-slagging agent are crushed and sieved respectively. 3mm, the crushing particle size of sawdust is 0.5mm, the crushing particle size of bagasse is 3mm, the sieving particle size of combustion promoting agent is 180 mesh, and the sieving particle size of anti-slagging agent is 180 mesh.

[0027] (2) Pretreatment of crop stalks and bagasse: The crop stalks and bagasse obtained in step (1) were cooked respectively. Cook in acid solution for 1 and drain.

[0028] (3) Drying of raw materials: Dry the crop straw, sawdust and bagasse in step (2) respectively, dry the crop straw to a moisture content of 10%, dry the sawdust to a moisture content of 6%, and dry the bagasse to a moisture content of 15%.

[0029...

Embodiment 2

[0031] A preparation method of anti-slagging biomass solid particle fuel, comprising the following steps:

[0032] (1) Raw material crushing: the crop straw, sawdust and bagasse are crushed after removing impurities, and at the same time, the combustion-promoting agent and anti-slagging agent are crushed and sieved respectively. 4mm, the crushing particle size of sawdust is 0.7mm, the crushing particle size of bagasse is 4mm, the sieving particle size of combustion promoting agent is 190 mesh, and the sieving particle size of anti-slagging agent is 190 mesh.

[0033] (2) Pretreatment of crop stalks and bagasse: the crop stalks and bagasse obtained in step (1) were cooked respectively. Cook in acid solution for 1.5h and drain.

[0034] (3) Drying of raw materials: Dry the crop straw, sawdust and bagasse in step (2) respectively, dry the crop straw to a moisture content of 11%, dry the sawdust to a moisture content of 7%, and dry the bagasse to a moisture content of 16%.

[0...

Embodiment 3

[0037] A preparation method of anti-slagging biomass solid particle fuel, comprising the following steps:

[0038] (1) Raw material crushing: the crop straw, sawdust and bagasse are crushed after removing impurities, and at the same time, the combustion-promoting agent and anti-slagging agent are crushed and sieved respectively. 5mm, the crushing particle size of wood chips is 1mm, the crushing particle size of bagasse is 5mm, the sieving particle size of the combustion promoting agent is 200 mesh, and the sieving particle size of the anti-slagging agent is 200 mesh.

[0039] (2) Pretreatment of crop stalks and bagasse: The crop stalks and bagasse obtained in step (1) were cooked respectively. Cook in acid solution for 2 hours and drain.

[0040] (3) Drying of raw materials: Dry the crop straw, sawdust and bagasse in step (2) respectively, dry the crop straw to a moisture content of 12%, dry the sawdust to a moisture content of 8%, and dry the bagasse to a moisture content o...

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Abstract

The invention discloses a preparation method of an anti-slagging biomass solid granular fuel and solves problems that a biomass solid granular fuel, which is prepared through a preparation method in the prior art, is poor in quality, is liable to crush, is poor in durability, is liable to slag during a combustion process, can causes corrosion to a heating surface and is low in combustion rate. The preparation method in the invention mainly comprises following steps: (1) smashing raw materials; (2) pre-processing crop straws and bagasse; (3) drying the raw materials; and (4) mixing the raw materials and performing a moulding process. The preparation method in the invention is simple in processes. Variety and content of each raw material are strictly selected and optimized during preparation processes, and meanwhile granularity and moisture content of the raw materials are strictly controlled. The prepared biomass solid granular fuel is good in durability and an anti-slagging effect and is high in combustion rate.

Description

technical field [0001] The invention relates to a preparation method of biomass solid particle fuel, in particular to a preparation method of anti-slagging biomass solid particle fuel. Background technique [0002] Biomass solid molding dyes refer to solid fuels that use agricultural production residues such as crop straws and are compressed into specific shapes by special equipment to increase their density. When using CO 2 Net emissions are approximately zero, NO X , SO 2 The low emissions are conducive to reducing the phenomenon of straw burning in vast rural areas and improving the atmospheric environment. [0003] However, due to the inherent high content of alkali metal elements in biomass such as straw, the ash melting point is low, and the slagging phenomenon is serious during use, which not only reduces the combustion efficiency, but also causes serious corrosion to the combustion equipment and reduces the performance of the combustion equipment. and service l...

Claims

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Application Information

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IPC IPC(8): C10L5/44
CPCY02E50/30Y02E50/10
Inventor 陈敏
Owner 江山华隆能源开发有限公司
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