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Method and system for preparing solid fuel through biomass fluidized bed roasting

A solid fuel and biomass raw material technology, applied in the field of baking and molding, and lignin-based biomass crushing, can solve the problems of low particle strength, achieve high energy consumption, reduce costs, and reduce wear and tear

Inactive Publication Date: 2015-05-27
HUNAN ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, provide a method that can effectively reduce the friction loss in the pulverization process, can fully and quickly roast the biomass, and can effectively solve the problem of high energy consumption and low particle strength. It should also provide a system for preparing solid fuel from biomass with stable operation, energy saving and easy operation

Method used

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  • Method and system for preparing solid fuel through biomass fluidized bed roasting
  • Method and system for preparing solid fuel through biomass fluidized bed roasting
  • Method and system for preparing solid fuel through biomass fluidized bed roasting

Examples

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Embodiment 1

[0034] like figure 1 , 2 As shown, a biomass fluidized bed roasting system for preparing solid fuel includes a biomass pulverizing system, a fluidized bed roasting system, a biomass mixing molding system and a biomass burning system, and the biomass pulverizing system includes a first glass drying room 1-1 (i.e. drying room), dryer 2, second blower 18, gas cooler 19, bag filter 20 and pulverizer 3 for pulverizing biomass raw materials, in the biomass pulverizing system, the glass greenhouse There is a material output port. The dryer 2 is equipped with a material input port, a material output port, a gas input port and a gas output port. The material output port of the greenhouse 1-1 is connected with the material input port of the dryer 2 by a belt conveyor, and the material output port of the dryer 2 The port is connected with the pulverizer 3 input port by a pipeline belt conveyor, the gas input port of the dryer 2 is connected with the second blower 18 through a pipeline,...

Embodiment 2

[0047] A process method for preparing solid fuel by biomass fluidized bed roasting, which is realized by the biomass roasting and molding system of the present embodiment above, and specifically includes the following steps:

[0048] (1) Biomass drying, preheating and crushing treatment: transport the camphor tree raw materials to the biomass drying room for drying by solar energy for 10 days, send the dried biomass raw materials to the biomass dryer, and pass through the high temperature generated during combustion. The exhaust gas preheats the biomass for 30 minutes, and the preheated biomass is transported to the pulverizer for crushing and sieving. The particle size of the pulverized biomass raw material does not exceed 5mm.

[0049] In the above process, the high-temperature exhaust gas preheated by biomass is transported to the dust collector for dust removal treatment;

[0050] (2) Biomass baking treatment: transport the pulverized biomass raw material to the inner cavi...

Embodiment 3

[0056] A process method for preparing solid fuel by roasting biomass in a fluidized bed, the method is realized by the system described in the above-mentioned embodiment 1, and specifically includes the following steps:

[0057] (1) Biomass drying, preheating and crushing treatment: the straw raw material is transported to the biomass drying room and dried by solar energy for 5 days, and the dried biomass raw material is sent to the biomass dryer to pass through the high temperature generated during combustion. The exhaust gas preheats the biomass for 10 minutes, and the preheated biomass is transported to the pulverizer for crushing and sieving. The particle size of the pulverized biomass raw material does not exceed 5mm.

[0058] In the above process, the high-temperature exhaust gas preheated by biomass is transported to the dust collector for dust removal treatment;

[0059] (2) Biomass baking treatment: transport the pulverized biomass raw material to the inner cavity of ...

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Abstract

The invention discloses a method and system for preparing solid fuel through biomass fluidized bed roasting. The preparation system comprises a biomass crushing system, a fluidized bed roasting system, a biomass mixing and molding system and a biomass combustion system, wherein the biomass crushing system comprises an airing chamber, a dryer used for preheating biomass raw materials, and a crusher used for crushing the biomass raw materials; the fluidized bed roasting system comprises a gas heating device, a fluidized bed reactor and a cyclone separator; the biomass mixing and molding system comprises a mixer for mixing materials and additives, an annular mould forming machine used for performing extrusion forming on the mixed raw materials, and a cooling device for cooling granules; and the biomass combustion system comprises a biomass boiler. By the system for preparing the solid fuel by using the biomass, which stably runs and is capable of saving the energy and easy and convenient to operate, a process method through which the biomass can be fully and rapidly roasted and the problems such as high molding energy consumption and low particle strength can be effectively solved is realized.

Description

technical field [0001] The invention relates to a method and system for pulverizing, roasting and molding lignin biomass. Background technique [0002] Since the 21st century, energy and environmental issues have become the central issues facing the world today that are related to the sustainable development of the country. With the improvement of the world's population and people's living standards, the consumption of various types of non-renewable energy is increasing, and the energy crisis is becoming more and more serious. On the other hand, due to the burning of a large amount of fossil fuels, a series of environmental problems such as acid rain and greenhouse effect have been caused, which have brought great harm to the natural environment and human life. In order to alleviate and gradually solve the above problems, countries all over the world are actively developing renewable energy. [0003] Biomass energy, as a green and environmentally friendly renewable resourc...

Claims

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Application Information

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IPC IPC(8): C10L5/44
CPCY02E50/10Y02E50/30
Inventor 李辉曹亮李昌珠袁兴中肖志红黄忠良刘汝宽肖智华蒋龙波
Owner HUNAN ACAD OF FORESTRY
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