Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and system for preparing biomass pellet fuel

A technology of pellet fuel and biomass raw material, which is applied in the field of preparation of biomass molding pellet fuel, can solve the limitation of the physical and chemical properties of biomass molding raw materials due to seasonal changes of raw materials, the development of biomass molding industry, the temperature and pressure of biomass molding, Problems such as short service life of forming vulnerable parts, to achieve the effect of not easy to mildew, less loss of forming equipment, waterproof and water-absorbing ability

Active Publication Date: 2017-04-05
HUNAN UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, most of the biomass briquettes are difficult to store, and the storage cost is high. The briquettes are prone to mold, rupture, volume expansion, and reduced strength. Serious cases can lead to warehouse explosions or spontaneous combustion accidents.
The temperature and pressure required for biomass molding are high, the equipment loss is serious, and the life of molding vulnerable parts is short, which is the main bottleneck of the large-scale biomass molding technology
Insufficient biomass molding raw materials, seasonal changes in raw materials and differences in physical and chemical properties of raw materials also limit the development of biomass molding industry

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and system for preparing biomass pellet fuel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] figure 1 An embodiment of the preparation system of biomass shaped granular fuel of the present invention is shown, and the system includes a raw material processing system, a shaping system, a boiler system and a distribution system.

[0043] The raw material processing system includes a biomass raw material processing system and a sludge raw material processing system. The biomass raw material processing system includes a biomass drying device 1, a biomass coarse powder device 4, a biomass baking device 6, and a biomass fine powder device 8 connected in sequence. With the biomass material bin 15, the adjacent process is connected by an auger 28 to transport the biomass raw material. The sludge raw material treatment system includes a sludge drying device 2 , a sludge crushing device 11 and a sludge silo 13 which are connected in sequence, and the sludge raw materials are transported through a screw 28 between adjacent processes. The biomass drying device 1 is connect...

Embodiment 2

[0059] This embodiment adopts the same preparation system as that of Embodiment 1. In the preparation method of this embodiment, the biomass raw material is rice straw, and the sludge raw material is papermaking sludge, which specifically includes the following steps:

[0060] 1) Drying: send the biomass raw material (straw) and the sludge raw material (papermaking sludge) into the biomass drying device 1 and the sludge drying device 2 respectively, and use the high temperature of 160°C to 200°C generated by the biomass boiler 29 The steam dries the straw and the papermaking sludge respectively until the moisture content of the straw is 7%, and the moisture content of the papermaking sludge is 28%. The dried straw is sent to the biomass coarse powder device 4 through the auger 28, and the dried papermaking sludge Sent to the sludge crushing device 11 through the auger 28.

[0061] 2) Pulverization: the dried rice straw is pulverized in the biomass pulverization device 4, and t...

Embodiment 3

[0068] This embodiment adopts the same preparation system as in Example 1. In the preparation method, the biomass raw material is pine wood chips, and the sludge raw material is papermaking sludge, which specifically includes the following steps:

[0069] 1) Drying: Send the biomass raw material (pine wood chips) and the sludge raw material (papermaking sludge) into the biomass drying device 1 and the sludge drying device 2 respectively, and use the 160°C-200°C air generated by the biomass boiler 29 to The high-temperature steam dries the pine wood chips and the papermaking sludge respectively until the moisture content of the pine wood chips is 8%, and the moisture content of the papermaking sludge is 32%. The papermaking sludge is sent to the sludge crushing device 11 through the auger 28.

[0070] 2) Pulverization: the dried pine wood chips are pulverized in the biomass coarse powder device 4, and the particle diameter of the pine wood chips after the coarse powder is 5 mm ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
heating valueaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method and a preparation system of biomass moulding fuel. The preparation method comprises the following steps: drying a biomass raw material with high-temperature steam, coarsely grinding, roasting with high-temperature fume, finely grinding, mixing the ground biomass raw material with a dried sludge raw material, adding a sludge additive, mixing and moulding so as to obtain the biomass moulding fuel. The system comprises a raw material processing system, a moulding system and a boiler system, wherein the boiler system is used for offering high-temperature steam to the raw material processing system by virtue of a high-temperature steam pipeline; and the boiler system is used for offering high-temperature fume to a roasting system by virtue of a high-temperature gas supply pipe. The biomass moulding fuel prepared by the preparation method disclosed by the invention is strong in water absorption resistance, low in storage and transport cost, not easily mildewed and high in strength; and the system disclosed by the invention is low in operation cost, mild in moulding condition, low in the loss of moulding equipment, high in heat energy utilization rate and good in the performance of the obtained moulding fuel.

Description

technical field [0001] The invention belongs to the field of biomass energy and solid waste reuse, and in particular relates to a preparation method and system for biomass shaped granular fuel. Background technique [0002] With the increasing demand for fossil fuels in the development of the national economy, the consumption of fossil fuel resources is accelerating at an alarming rate, and the use of coal will cause serious environmental pollution, so the task of finding alternative energy sources is becoming increasingly urgent. Biomass energy is a kind of renewable energy. my country is rich in agricultural and forestry wastes. In 2010, it produced 700 million tons of straw and 300 million tons of forestry residues. Biomass energy utilization mainly includes direct combustion, compact molding, liquefaction, and gasification. At present, biomass densification molding technology is an effective way to utilize biomass and has achieved industrial utilization. [0003] Bioma...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C10L5/44
CPCY02E50/10Y02E50/30
Inventor 袁兴中蒋龙波梁婕陈晓红肖智华冷立健王侯李辉曾光明
Owner HUNAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com