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Method for preparing biomass solid molding fuel

A technology of solid briquette fuel and biomass, applied in solid fuel, biofuel, waste fuel and other directions, can solve the problems of a lot of capital, environmental pollution, high processing cost, and achieve low heat consumption, low drying temperature and fast dehydration speed. Effect

Inactive Publication Date: 2011-04-20
NINGBO GUOHAI ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Incineration treatment requires a lot of investment in capital and equipment, high operating costs, high processing costs, and will cause pollution to the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Send 700Kg of pulverized biomass dry powder (straw powder and sawdust) and 300Kg of papermaking waste sludge with a moisture content of 80% into the batching box for mixing, and then send the mixture into a double-stick mixer, fully break up and stir for 5 Minutes, the mixture with a moisture content of about 60% is obtained, and then transported to the tumble dryer by the mixing conveyor for drying, and the moisture content of the mixture is reduced to below 20%, and then sent to the distribution bin through the conveyor belt Inside; input into the molding machine through the conveyor to press and form the solid briquette fuel, and the solid briquette fuel is screened, cooled, and air-dried, and the moisture content is further reduced to about 12-15%. Finally, the solid molding fuel is sent to the mechanical packaging machine, and the finished product is obtained after packaging.

Embodiment 2

[0025] Send 600Kg of pulverized biomass dry powder (straw powder and wood chips) and 400Kg of papermaking waste sludge with a moisture content of 75% into the batching box for mixing, and then send the mixture into a double-stick mixer, fully break up and stir for 6 Minutes, the mixture with a moisture content of about 55% is obtained, and then transported to the tumble dryer by the mixing conveyor for drying, and the moisture content of the mixture is reduced to below 20%, and then sent to the distribution bin through the conveyor belt Inside; input into the molding machine through the conveyor to press and form the solid briquette fuel, and the solid briquette fuel is screened, cooled, and air-dried, and the moisture content is further reduced to about 12-15%. Finally, the solid molding fuel is sent to the mechanical packaging machine, and the finished product is obtained after packaging.

Embodiment 3

[0027] Send 500Kg of pulverized biomass dry powder (straw powder and sawdust) and 500Kg of papermaking waste sludge with a moisture content of 70% into the batching box for mixing, and then send the mixture into a double-stick mixer, fully break up and stir for 8 Minutes, the mixture with a moisture content of about 50% is obtained, and then transported to the tumble dryer by the mixing conveyor for drying, and the moisture content of the mixture is reduced to below 20%, and then sent to the distribution bin through the conveyor belt Inside; input into the molding machine through the conveyor to press and form the solid briquette fuel, and the solid briquette fuel is screened, cooled, and air-dried, and the moisture content is further reduced to about 12-15%. Finally, the solid molding fuel is sent to the mechanical packaging machine, and the finished product is obtained after packaging.

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Abstract

The invention discloses a method for preparing biomass solid molding fuel, comprising the following steps of: (1) transferring waste residue and sludge from paper making and biomass dry powder into a batcher in proportion to obtain a mixture; (2) transferring the mixture obtained in the step (1) into a stirrer, fully stirring and breaking up the mixture; (3) conveying the mixture obtained in the step (2) into a dryer through a conveyor; (4) further reducing the water content of the mixture through the dryer and transferring the mixture into a distributing bin; (5) transferring the mixture into a molding machine, carrying out compression molding to obtain solid molding fuel and further reducing the water content of the solid molding fuel through screening, cooling and air-drying; and (6) transferring the solid molding fuel obtained in the step (5) into a mechanical packer to obtain a finished product. By effectively using the waste residue and the sludge from paper making and the biomass dry powder, the invention not only enables the waste residue and the sludge from paper making and the biomass dry powder to be treated, but also successfully produces the clean biomass solid molding fuel, and is beneficial to reduction of consumption of mineral energy.

Description

technical field [0001] The invention relates to the technical field of fuel preparation, in particular to a method for preparing biomass solid shaped fuel. Background technique [0002] Biomass raw materials are coal, natural gas and petroleum fuels. According to expert analysis, biomass may become an important part of sustainable energy. my country is a country rich in biomass resources, but it has not been reasonably utilized. In today's increasingly scarce energy sources, it is necessary to rationally utilize biomass resources. In addition, the domestic papermaking continues to develop, but the environmental problems caused by it are also becoming more and more prominent, which is mainly manifested in the generation of a large amount of papermaking waste residue and sludge. Papermaking sludge is the terminal product of wastewater sedimentation treatment in the papermaking process, and the papermaking waste residue contains a considerable amount of wood fiber, short plant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/44C10L5/46C02F11/12
CPCY02E50/30Y02E50/10
Inventor 章继吕李鲁信
Owner NINGBO GUOHAI ENERGY TECH
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