Preparation system and preparation method for biomass molding fuel

A technology for forming fuel and preparation system, which is applied in the fields of biofuel, waste fuel, fuel, etc., can solve the problems of unstable combustion, low quality of pyrolysis gas, high equipment investment and operating cost, and achieve the improvement of bulk density and fluidity , the effect of increasing the content of H2 and CO, and improving energy utilization

Active Publication Date: 2015-04-29
岳阳红普科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] At present, the pyrolysis of agricultural and forestry wastes is the main way of utilization of agricultural and forestry wastes, but there are common problems such as high tar content in pyrolysis gas, low pyrolysis efficiency, low quality of pyrolysis gas, corrosion of gasification equipment, blockage of gas pipelines, and hazards. Combustion equipment and other issues
In addition, in the gasification process, only part of the raw materials are gasified and utilized, while the ungasified solid residue contain

Method used

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  • Preparation system and preparation method for biomass molding fuel

Examples

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Embodiment 1

[0045] figure 1 An embodiment of the biomass briquette fuel preparation system of the present invention is shown, the system includes a raw material pretreatment system, a low-temperature pyrolysis system, a high-temperature gasification system, a compact briquette system, a boiler system and a distribution system.

[0046] The raw material pretreatment system includes a biomass treatment system and a sludge treatment system. The biomass treatment system includes a connected biomass drying greenhouse 1 and a biomass pulverizer 2. The sludge treatment system includes a sludge drying greenhouse 3 and a sewage sludge treatment system connected in sequence. The mud drying and pulverizing integrated machine 4 and the sludge raw material bin 5 are connected and transported by the screw conveyor 7 between adjacent processes, and the biomass drying greenhouse 1 and the sludge drying greenhouse 3 are connected. In this embodiment, the biomass drying greenhouse 1 and the sludge drying g...

Embodiment 2

[0063] This embodiment adopts the same preparation system as that of Example 1, and the preparation method of this embodiment specifically includes the following steps:

[0064] 1) Drying: send the biomass and sludge into the biomass drying greenhouse 1 and the sludge drying greenhouse 3 respectively, and use the 160°C-200°C high-temperature steam generated by the biomass boiler 22 to dry the biomass and sludge respectively until The moisture content of the biomass is 16%, and the moisture content of the sludge is 35%. The dried biomass is sent to the biomass pulverizer 2, and the dried sludge is sent to the sludge drying and pulverizing integrated machine 4.

[0065] 2) Pulverization: pulverize the dried biomass in the biomass pulverizer 2, and the particle size of the pulverized biomass is ≤10mm; pulverize and further dry the dried sludge in the sludge drying and pulverizing machine 4 The moisture content of the pulverized and dried sludge is 28%, and the particle size is ≤3...

Embodiment 3

[0072] This embodiment adopts the same preparation system as that of Example 1, and the preparation method of this embodiment specifically includes the following steps:

[0073] 1) Drying: send the biomass and sludge into the biomass drying greenhouse 1 and the sludge drying greenhouse 3 respectively, and use the 160°C-200°C high-temperature steam generated by the biomass boiler 22 to dry the biomass and sludge respectively until The moisture content of the biomass is 15%, and the moisture content of the sludge is 45%. The dried biomass is sent to the biomass pulverizer 2, and the dried sludge is sent to the sludge drying and pulverizing integrated machine 4.

[0074] 2) Pulverization: pulverize the dried biomass in the biomass pulverizer 2, and the particle size of the pulverized biomass is ≤10mm; pulverize and further dry the dried sludge in the sludge drying and pulverizing machine 4 , the water content of the pulverized and dried sludge is 32.6%, and the particle size is ≤...

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Abstract

The invention discloses a preparation system and a preparation method for a biomass molding fuel. The preparation system comprises a raw material pretreatment system, a low-temperature pyrolysis system, a high-temperature gasification system, a densification molding system and a boiler system. The preparation method comprises the following steps: performing low-temperature pyrolysis and high-temperature gasification on a dried and crushed biomass; mixing the obtained residues with dried and crushed sludge and an auxiliary raw material, and performing extrusion molding to obtain the biomass molding fuel. According to the preparation system disclosed by the invention, biomass gasification and biomass molding technologies are integrated, the whole system is in close connection to complement each other, the operating and maintenance costs are low, the obtained molding fuel is good in performance, the biomass is subjected to two-stage gasification by virtue of the preparation method, the gasification quality and efficiency are high, and the gasification residues are comprehensively utilized, so that the stabilization, quantity reduction, harmlessness and resource utilization of the sludge can be realized to the maximum extent.

Description

technical field [0001] The invention relates to the field of solid waste reuse, in particular to a system and method for preparing biomass briquettes. Background technique [0002] Since the beginning of the 21st century, energy and environmental issues have always been the central issues that all countries in the world are facing and are related to the sustainable development of the national economy. In order to alleviate and gradually solve this problem, countries all over the world are actively developing renewable new energy. [0003] my country is very rich in agricultural and forestry waste. In 2010, it produced 700 million tons of straw and 300 million tons of forestry residues. Since ancient times, agricultural and forestry wastes such as firewood and straw have been the most important fuels in rural areas of our country. However, with the improvement of people's living standards, more and more people choose to use fossil energy, and agricultural and forestry wastes...

Claims

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Application Information

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IPC IPC(8): C10J3/60C10J3/72C10B53/00C10B53/02C10B57/10C10L5/46
CPCC10B53/00C10B53/02C10B57/10C10J3/60C10J3/72C10L5/46Y02E50/10Y02E50/30Y02P20/129
Inventor 袁兴中蒋龙波梁婕李辉陈晓红肖智华吴志斌曹亮曾光明
Owner 岳阳红普科技发展有限公司
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