Production process for straw coal

A production process and straw coal technology, applied in the field of biomass renewable energy manufacturing, can solve the problems of coal-fired boilers that do not meet environmental protection requirements, heavy operating pressure of enterprises, and atmospheric environmental pollution, and achieve good quality, long burning time, and improved environment. Effect

Inactive Publication Date: 2011-04-27
黄恩东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of these straws are discarded as waste products or directly burned, which not only causes waste of resources, but also causes damage to the soil environment and pollution to the atmospheric environment.
On the other hand, the coal-fired boilers used

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0008] Example 1 A production process of straw coal

[0009] The straw is crushed; the crushed straw is added to the carbonization furnace and carbonized at 800-1200℃ for 30-50 minutes in an anaerobic state; the temperature is reduced to 200-250℃, and loess, coal slime, sulfur-fixing agent and Paraffin wax, the proportion by weight is: 100 parts of carbonized straw, 25 parts of loess, 25 parts of coal slime, 0.5 parts of sulfur fixing agent, and 0.5 parts of paraffin wax. The materials are mixed uniformly; they are fed into the extruder, formed and dried.

Example Embodiment

[0010] Example 2 A production process of straw coal

[0011] The straw is crushed; the crushed straw is added to the carbonization furnace and carbonized at 800-1200℃ for 30-50 minutes in an anaerobic state; the temperature is reduced to 200-250℃, and loess, coal slime, sulfur-fixing agent and Paraffin wax, the proportion by weight is: 100 parts of carbonized straw, 20 parts of loess, 20 parts of coal slime, 0.1 part of sulfur-fixing agent, and 0.1 part of paraffin. The materials are mixed uniformly; they are fed into the extruder, formed and dried.

Example Embodiment

[0012] Example 3 A production process of straw coal

[0013] The straw is crushed; the crushed straw is added to the carbonization furnace and carbonized at 800-1200℃ for 30-50 minutes in an anaerobic state; the temperature is reduced to 200-250℃, and loess, coal slime, sulfur-fixing agent and Paraffin wax, the proportion by weight is: 100 parts of carbonized straw, 30 parts of loess, 30 parts of coal slime, 0.7 parts of sulfur-fixing agent, and 0.7 parts of paraffin wax. The materials are mixed uniformly; they are fed into the extruder, formed and dried.

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PUM

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Abstract

The invention relates to a production process for straw coal. The adopted technical scheme comprises the following steps of: crushing straw; adding the crushed straw into a charring furnace, and charring at the temperature of 800 and 1,200 DEG C for 30 to 50 minutes under the anaerobic state; cooling to the temperature of 200 and 250 DEG C, adding 20 to 30 weight parts of loess, 20 to 30 weight parts of coal slime, 0.1 to 0.7 weight part of sulphur-fixing agent and 0.1 to 0.7 weight part of paraffins into 100 weight parts of charred straw, and mixing the mixture uniformly; and conveying to an extruder, forming and drying. The straw coal produced by the invention is newly developed energy, and the straw of crops is utilized fully, so that waste materials are turned into wealth, the rural environment is improved, and the produced straw coal has high quality and heat value of up to about 5,000 kilocalories, and is safe, pollution-free, energy-saving and environmentally-friendly.

Description

technical field [0001] The invention belongs to the field of biomass renewable energy production, and in particular relates to a process for producing straw coal from waste straw of crops. Background technique [0002] According to the forecast of the International Renewable Energy Organization: the reserves of underground oil, natural gas and coal can only be used for about 60 years according to the current exploitation utilization rate. With the shortage of energy in the world, the market demand and profit margin of biomass renewable energy will be immeasurable. On the one hand, the output of various straws in the vast rural areas and towns is large and the range is wide. According to statistics, in 2006, China's crop straw output reached 570 million tons, mainly including corn, wheat, cotton, rice, barley and oil crops. Most of these straws are discarded as waste products or directly burned, which not only causes waste of resources, but also damages the soil environment...

Claims

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Application Information

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IPC IPC(8): C10L5/44C10B53/02
CPCY02E50/30Y02E50/14Y02E50/10
Inventor 黄恩东
Owner 黄恩东
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