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Process utilizing agroforestrial waste to produce biomass molding charcoal

A technology for agricultural and forestry waste and biomass, which is applied in the fields of biofuel, waste fuel, petroleum industry, etc., can solve the problems of biomass energy waste, low production efficiency, environmental pollution, etc., and achieve full combustion, high calorific value, and carbon content high volume effect

Inactive Publication Date: 2012-12-05
吴汉民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to the above-mentioned uses, 18.7% of the remaining 113 million tons of straw have no use and become real waste, most of which are burned by farmers in the fields, which not only seriously pollutes the environment and affects traffic, but also causes extreme waste of biomass energy. big waste
The traditional biomass shaped charcoal is commonly used charcoal burning method and mechanical carbonization method, which not only greatly pollutes the environment, but also has low production efficiency and high cost.

Method used

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  • Process utilizing agroforestrial waste to produce biomass molding charcoal
  • Process utilizing agroforestrial waste to produce biomass molding charcoal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1, utilize agricultural and forestry waste to produce the technology of biomass briquette, wherein: the composition of the raw material that this production technology adopts is made up of following weight ratio:

[0026] 80-120 parts of biomass waste, 48-72 parts of adhesive, 64-96 parts of water, 8-12 parts of combustion enhancer, 2-6 parts of smoke suppressant;

[0027] The process steps are as follows: firstly dry the biomass waste at 105°C for 2-4 hours, then carbonize at 500-600°C for 6-9 hours to obtain the carbonized material of biomass waste, crush and sieve for 50 The purpose is to obtain the carbonized powder of biomass waste, and then mix the carbonized powder of biomass waste with adhesive, combustion enhancer, smoke suppressant and water to obtain a mixed material, put it into a carbonization furnace, ignite it, After standing for 3-5 hours for aging, then press and shape;

[0028] The binder is formed by uniformly mixing clay with a weight rat...

Embodiment 2

[0031] Embodiment 2, the structure of the charring furnace that adopts is as follows:

[0032] Including the inner furnace 1 and the outer furnace 5, the outer furnace 5 is covered outside the inner furnace 1, wherein: the inner furnace 1 is provided with multiple rows of vents 4 through the furnace wall near the bottom, and the lowermost part of the outer furnace 5 is provided with a through furnace A row of ignition ports 6 on the wall, the upper end of the inner furnace 1 communicates with the outside world through the flue 2, and the lower end of the flue 2 is provided with a damper 3;

[0033] A plurality of steel pipes 7 are arranged at the bottom of the cavity between the outer furnace 5 and the inner furnace 1, and the plurality of steel pipes 7 are evenly arranged toward the center of the inner furnace 1, and a plurality of small holes are distributed on the steel pipes 7;

[0034] The agricultural and forestry wastes are placed on the perforated steel pipe 7 for comb...

Embodiment 3

[0038] Embodiment 3, the technique of utilizing agricultural and forestry waste to produce biomass shaped charcoal, wherein: the composition of this production technique is proportioned according to the following proportions:

[0039] 80 parts of biomass waste, 48 parts of adhesive, 64 parts of water, 8 parts of combustion accelerant, 2 parts of smoke suppressant;

[0040] The process steps are as follows: First, dry the biomass waste at 105°C for 2 hours, then carbonize it at 500°C for 6 hours to obtain the carbonized material of biomass waste, crush and sieve 50 meshes, and obtain the biomass The carbonized powder of the waste, and then the carbonized powder of the biomass waste is mixed with the binder, the combustion enhancer, the smoke suppressant and water to obtain the mixed material, put it into the carbonization furnace, ignite it, and let it stand for 5 hours to mature After that, press molding again.

[0041] All the other are the same as embodiment 1 and embodimen...

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Abstract

The invention relates to a process utilizing agroforestrial waste to produce biomass molding charcoal, wherein the raw material utilized by the production process comprises the following components in parts by weight: 80-120 parts of biomass waste, 48-72 parts of adhesive, 64-96 parts of water, 8-12 parts of combustion improver and 2-6 parts of antismoke agent. The invention has the advantages that an internal thermal type charring mode is adopted, no waste gas is discharged basically during the charring procedure, atomized water is adopted to terminate the charring procedure without environmental pollution; the charring time is short without requiring to ignite open fire; and machinery is not in need to carry out high-temperature and high-pressure charring, biomass charring can be realized under natural condition, and the charcoal content and the charring rate are high. The generated biomass molding charcoal is combustible, smokeless, nontoxic and odorless, and has sufficient combustion, strong heat power and large heat productivity.

Description

technical field [0001] The invention relates to a process for producing charcoal, in particular to a process for producing biomass shaped charcoal from agricultural and forestry waste. Background technique [0002] Straw resource is a kind of green renewable energy with the largest scale of development and utilization in new energy. According to the statistics of relevant departments, among the crop straws used as energy sources in my country, 145 million tons are used for livestock feed, 91 million tons are returned to the field as fertilizer, 14 million tons are used as industrial raw materials, and 2.8 million tons are used as traditional living fuel for farmers. billion tons, accounting for 24%, 15%, 2.3% and 40% of the total respectively. In addition to the above-mentioned uses, 18.7% of the remaining 113 million tons of straw have no use and become real waste, most of which are burned by farmers in the fields, which not only seriously pollutes the environment and affec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L5/44C10B1/04C10B53/02
CPCY02E50/30Y02E50/14Y02E50/10
Inventor 吴汉民
Owner 吴汉民
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