Preparation method of mulberry twig granular biofuel

A biofuel, mulberry technology, applied in the directions of biofuels, waste fuels, fuels, etc., can solve the problems of high combustion value of mulberry branch granule biofuel, ineffective utilization of mulberry branches, and increase farmers' income, etc., to achieve excellent combustion characteristics, increase Farmers' income, the effect of strong reproducibility

Active Publication Date: 2014-03-26
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that a large number of mulberry branches produced by sericulture cannot be effectively utilized, and a method for preparing mulberry branch granular biofuel is provided, which can effectively utilize the by-product mulberry branches of sericulture, with abundant raw materials and strong renewability. Moreover, the cost is low, the combustion value of the mulberry branch pellet biofuel is high, and the pellet fuel made of it has excellent combustion performance, basically no smoke, no carbon dioxide, and sulfur dioxide emissions during combustion. It plays an important role in increasing farmers' income

Method used

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  • Preparation method of mulberry twig granular biofuel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Utilize the mulberry branches cut after the end of silkworm rearing in spring, carry out primary drying through natural sunlight, collect the primary dried mulberry branches and grind them with a pulverizer until the particle size is below 3mm to obtain mulberry branch powder, and mulberry branch powder Sun-dried to a moisture content of less than 15%. Mulberry branch powder 93 wt% and river mud powder 7wt% are mixed evenly to obtain mixed powder, the particle size of river mud powder is below 3mm, and the water content of river mud powder is about 12%.

[0036] The mixed powder is compression-molded by a molding machine to obtain pellets (the mixed powder is suitable for various pellet fuel molding machines in the current market to produce pellet fuel), the temperature of the compression molding is controlled at 180°C, the pressure is 12MPa, and the particle diameter is 0.8 About cm, the length can be adjusted according to the use of fuel.

[0037] Taking a particle w...

Embodiment 2

[0041] Utilize the mulberry branches cut after the end of silkworm rearing in spring, carry out primary drying through natural sunlight, collect the primary dried mulberry branches and grind them with a pulverizer until the particle size is below 3mm to obtain mulberry branch powder, and mulberry branch powder Sun-dried to a moisture content of less than 15%. Mulberry branch powder 95 wt% is mixed with river mud powder 5wt% evenly to obtain mixed powder, the particle size of river mud powder is below 3mm, and the water content of river mud powder is about 10%.

[0042] The mixed powder is molded by a molding machine to obtain granules. The temperature of the mold is controlled at 200°C, the pressure is 15MPa, the diameter of the particles is about 0.8cm, and the length can be adjusted according to the purpose of the fuel.

[0043] Taking a particle with a length of 2cm as an example, its industrial indicators and combustion characteristic parameters are as follows:

[0044]Mo...

Embodiment 3

[0047] After falling leaves in winter, use the weak and small residual branches obtained by pruning mulberry branches in winter and pruning mulberry trees as raw materials for mulberry branches, and carry out primary drying through natural sunlight, and collect the primary dried mulberry branches and grind them with a pulverizer until the particle size is 3mm. The mulberry branch powder is obtained as follows, and the mulberry branch powder is dried in the sun until the moisture content is within 15%. Mulberry branch powder 92 wt % and river mud powder 8wt% are mixed evenly to obtain mixed powder, the particle size of river mud powder is below 3 mm, and the water content of river mud powder is about 15%.

[0048] The mixed powder is molded by a molding machine to obtain granules. The temperature of the mold is controlled at 150°C, the pressure is 10MPa, the diameter of the particles is about 0.8cm, and the length can be adjusted according to the purpose of the fuel.

[0049] T...

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Abstract

The invention discloses a preparation method of mulberry twig granular biofuel, aiming to solve the problem that plenty of mulberry twigs generated by silkworm breeding can not be effectively utilized. The novel granular biofuel is prepared by utilizing waste mulberry twigs as the main raw materials and moderately adding auxiliary materials. The prepared granular fuel has excellent combustion performance. The preparation method has the beneficial effects that the mulberry twigs as byproducts of the silk industry can be effectively utilized; the raw materials are abundant, have strong reproducibility and are low in cost; the mulberry twig granular biofuel has a high combustion value and excellent combustion performance, is basically free from smoke, carbon dioxide and sulfur dioxide emission during combustion, and has great effects on controlling environmental pollution, protecting ecology, increasing the economic benefits of the traditional silk industries and increasing the income of farmers.

Description

technical field [0001] The invention relates to a preparation method of biofuel, in particular to a preparation method of mulberry branch particle biofuel. Background technique [0002] China is one of the countries with the largest number of artificially planted mulberry trees in the world. At present, my country has more than 10 million mu of mulberry gardens. Mulberry is a perennial woody plant with the characteristics of fast growth, high biomass (leaves and branches), and strong cutting resistance. The primary purpose of planting mulberry trees is to use mulberry leaves to raise silkworms. The traditional way of raising silkworms requires cutting the branches of mulberry trees at least twice a year. After the first silkworm rearing for leaf picking in spring, the remaining branches need to be cut off to allow new shoots to sprout. The second time is after winter, as the temperature drops, the mulberry leaves fall off, and the mulberry tree enters the dormant period. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/44
CPCY02E50/10Y02E50/30
Inventor 沈国新裘晓云鲍忠汉魏佳陈琳陈小龙
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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