Environment-friendly recovery method of waste wood dust of willows

A recycling method and technology of wood chips, applied in waste fuel, solid fuel, biofuel, etc., can solve the problems of slow burning speed, high cost of raw materials, narrow application range, etc., and achieve improved heat and durability, durability, and durability high degree of effect

Active Publication Date: 2018-07-24
广西艾尚嘉家居有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Zhao Hongyan et al. (Recipe optimization of wood chip-loaded ethanol-friendly solid fuel block, Journal of Zhejiang Ocean University (Natural Science Edition), 2011, 33(6): 545-549) studied a solid fuel that uses wood chip-loaded ethanol fuel block, Disadvantages: need to add oxidant and catalyst, high cost of raw materials, narrow application range, difficult to promote on a large scale
However, the burning process of willow waste wood chips is faced with the disadvantages of low durability and slow burning speed in the early burning process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1. Preliminary preparation

[0028] Preparation of straw slag powder: In parts by weight, 100 parts of straw slag, 10 parts of acetic acid solution, 5 parts of starch and 30 parts of deionized water are evenly mixed, and sealed at a temperature of 25°C and a relative humidity of 75%. Ferment for 12 hours, then put into a high-pressure homogenizer, stir at a speed of 2000r / min for 15 minutes, and spray dry at an inlet air temperature of 170°C and an outlet air temperature of 102°C to obtain straw slag powder.

[0029] Preparation of acidic dipping solution: in parts by weight, after mixing 10 parts of phosphoric acid, 2 parts of hydrochloric acid and 100 parts of deionized water, the acidic dipping solution is prepared.

[0030] The above-mentioned pre-prepared material is used in the following environmentally friendly recovery method of willow waste sawdust.

[0031] 2. an environmental protection recovery method of willow waste sawdust, comprising the following steps:...

Embodiment 2

[0037] 1. Preliminary preparation

[0038] Preparation of straw slag powder: In parts by weight, 100 parts of straw slag, 11 parts of acetic acid solution, 5 parts of starch and 30 parts of deionized water are evenly mixed, and sealed at a temperature of 28°C and a relative humidity of 77%. Ferment for 15 hours, then put into a high-pressure homogenizer, stir at a speed of 4000r / min for 16 minutes, and spray dry at an inlet air temperature of 174°C and an outlet air temperature of 103°C to obtain straw slag powder.

[0039] Preparation of acidic dipping solution: in parts by weight, after mixing 10 parts of phosphoric acid, 2.3 parts of hydrochloric acid and 100 parts of deionized water, the acidic dipping solution is prepared.

[0040] The above-mentioned pre-prepared material is used in the following environmentally friendly recovery method of willow waste sawdust.

[0041] 2. an environmentally friendly recovery method of willow waste sawdust, comprising the following step...

Embodiment 3

[0047] 1. Preliminary preparation

[0048] Preparation of straw slag powder: In parts by weight, 100 parts of straw slag, 13 parts of acetic acid solution, 5 parts of starch and 30 parts of deionized water are evenly mixed, and sealed at a temperature of 26°C and a relative humidity of 79%. Ferment for 16 hours, then put into a high-pressure homogenizer, stir at a speed of 3000r / min for 18 minutes, and spray dry at an inlet air temperature of 177°C and an outlet air temperature of 104°C to obtain straw slag powder.

[0049] Preparation of acidic dipping solution: in parts by weight, after mixing 10 parts of phosphoric acid, 2.5 parts of hydrochloric acid and 100 parts of deionized water, the acidic dipping solution is prepared.

[0050] The above-mentioned pre-prepared material is used in the following environmentally friendly recovery method of willow waste sawdust.

[0051] 2. an environmental protection recovery method of willow waste sawdust, comprising the following step...

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Abstract

The invention discloses an environment-friendly recovery method of waste wood dust of willows. The environment-friendly recovery method comprises the following steps of: (1) pretreatment of the wastewood dust of the willows; (2) carbonization; (3) preparation of solid fuel: according to the weight parts, taking and placing 100 parts of paraffin wax into a jacketed pan, rising the temperature tillthe paraffin wax is melted, then adding 20-45 parts of carbonized wood dust, 80 parts of waste wood dust of willows, 10-24 parts of straw slag powder and 8-15 parts of coal powder, stirring for 10-15minutes at a speed of 50-100r/min under the temperature of 50-68 DEG C, then spraying alcohol fog continuously in the whole process of stirring, placing the materials into a container after the stirring is ended, sealing, placing into a mold for compression molding and obtaining solid fuel. The environment-friendly recovery method disclosed by the invention has the beneficial effects that the problem of low durability of waste wood dust of the willows in early burning can be avoided, and high-quality solid fuel can be produced by combination of the waste wood dust and other substances, so that the market promotion prospect is wide.

Description

【Technical field】 [0001] The invention relates to the field of recycling sawdust, in particular to an environment-friendly recycling method for waste willow sawdust. 【Background technique】 [0002] With the development of the national economy and the increase in the number of automobiles, the problem of energy shortage has become increasingly prominent. The measures to develop new energy sources and realize energy diversification have attracted widespread attention from all over the world. Solid fuel is a substitute or supplement for conventional fuel. It is a new type of fuel. It has emerged with the convenience and other special requirements of people for fuel. However, the main raw material of current solid fuel is pulverized coal. Coal powder comes from coal mines. With the increasingly tight coal mine resources, coal powder is gradually difficult to meet market demand. In recent years, many scientific research institutes and enterprises have begun to study the use of w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/44
CPCC10L5/442C10L2290/30C10L2290/32Y02E50/10Y02E50/30
Inventor 杨静
Owner 广西艾尚嘉家居有限公司
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