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Method for preparing granular biomass fuel from humus-wrapped solid domestic waste

A technology of biomass fuel and domestic waste, applied in the direction of biofuel, solid fuel, waste fuel, etc., can solve the problems of endangering human safety, excessive ash, corrosion of combustion equipment, etc., and achieves no harm to human health, simple preparation method, less corrosive effect

Inactive Publication Date: 2016-05-11
中诚炭基实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to solve the problem of low calorific value and high consumption of biomass fuel, insufficient combustion and a lot of ash during use, and because strong oxidants are generally added in the preparation process, the smoke generated during combustion Gas seriously corrodes combustion equipment and endangers human safety. A method is provided by taking river sludge and adding tap water and potassium aluminum sulfate dodecahydrate to mix and stratify, then collecting intermediate humus for high-temperature sterilization, heating and evaporating part of the water, The humus colloidal liquid is obtained for use; the combustible solid waste collected and sorted is processed into granules, the spare humic colloidal liquid is wrapped on the surface of the granules, and the method of preparing biomass fuel after drying and solidifying

Method used

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Examples

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Effect test

example 1

[0017] First, select river sludge with a water content of 80%, mix it with tap water at a mass ratio of 1:1, add potassium aluminum sulfate dodecahydrate with 1% of the total mass of the mixture, and let it stand for 10 hours to separate the solid and liquid. Then remove the upper layer of water and the lower layer of sediment, and collect the middle humus; put the collected humus at 90°C for high-temperature sterilization, and heat it to make the water slowly evaporate. When the water content of the humus reaches 10%, , stop heating, allow it to cool naturally to 20°C, and prepare humic colloidal liquid for use; then collect and classify urban waste, collect harmless combustible solids and process them with shavings, and prepare broken pieces with a size of 5cm×5cm block, pressurize it to remove water, put it in a drum dryer, and dry it with hot oil. After the drying is completed, crush the dried pieces with a jet mill, and collect the pieces with a particle size of 1cm. ;Aft...

example 2

[0020] First, select river sludge with a water content of 85%, mix it with tap water at a mass ratio of 1:1, add potassium aluminum sulfate dodecahydrate with 1% of the total mass of the mixture, and let it stand for 11 hours to separate the solid from the liquid. Then remove the upper layer of water and the lower layer of sediment, and collect the middle humus; place the collected humus at 95°C for high-temperature sterilization treatment, and heat it to make the water evaporate slowly. When the water content of the humus reaches 15%, , stop heating, allow it to cool naturally to 25°C, and prepare humic colloidal liquid for use; then collect and classify urban waste, collect harmless combustible solids and process them with shavings, and prepare broken pieces with a size of 5cm×5cm block, pressurize it to remove water, put it in a drum dryer, and dry it with hot oil. After the drying is completed, crush the dried pieces with a jet mill, and collect the pieces with a particle s...

example 3

[0023]First, select river sludge with a water content of 90%, mix it with tap water at a mass ratio of 1:1, add potassium aluminum sulfate dodecahydrate with 1% of the total mass of the mixture, and let it stand for 12 hours to separate the solid from the liquid. Then remove the upper layer of water and the lower layer of sediment, and collect the middle humus; place the collected humus at 100°C for high-temperature sterilization, and heat it to make the water evaporate slowly. When the water content of the humus reaches 20%, , stop heating, allow it to cool naturally to 30°C, and prepare a humic colloidal liquid for use; then collect and classify urban waste, collect harmless combustible solids and process them with shavings, and prepare broken pieces with a size of 5cm×5cm block, pressurize it to remove water, put it in a drum dryer, and dry it with hot oil. After the drying is completed, crush the dried pieces with a jet mill, and collect the pieces with a particle size of 1...

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Abstract

The invention discloses a method for preparing granular biomass fuel from humus-wrapped solid domestic waste, belonging to the field of biomass fuel preparation. The method comprises the following steps: fetching river sludge and adding tap water and aluminum potassium sulfate dodecahydrate and mixing and layering; collecting the middle humus and performing high-temperature sterilization; heating to evaporate some of the moisture to obtain humus colloid liquid for later use; processing the collected and classified combustible soil waste into particles; wrapping the surfaces of the particles with the spare humus colloid liquid; and drying and solidifying to obtain the biomass fuel. The method disclosed by the invention has the following beneficial effects: the preparation method is simple, and the preparation process does not need any auxiliary, thereby being safe and environmentally friendly and causing little corrosion to the combustion equipment; and moreover, the obtained product has the advantages of high heat value and low consumption and avoids harmful gas generation, environmental pollution and harm to human health.

Description

technical field [0001] The invention relates to a method for preparing granular biomass fuel by wrapping solid domestic garbage with humus, and belongs to the field of biomass fuel preparation. Background technique [0002] Biomass fuel refers to the burning of biomass materials as fuel, generally mainly agricultural and forestry waste (such as straw, sawdust, bagasse, rice bran, etc.), which is mainly different from fossil fuels. In the current national policy and environmental protection standards, direct combustion of biomass is a highly polluting fuel, which is only used in large stoves in rural areas and is not allowed to be used in cities. The application of biomass fuel is actually mainly biomass briquette fuel, which uses agricultural and forestry waste as raw materials, and through crushing, mixing, extrusion, drying and other processes, it is made into various shapes such as lumps, granules, etc., which can be directly A new type of clean fuel to burn. So far, th...

Claims

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Application Information

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IPC IPC(8): C10L5/40
CPCY02E50/10Y02E50/30C10L5/40C10L5/442C10L2200/0295C10L2200/0469
Inventor 仇颖超高力群盛艳花
Owner 中诚炭基实业有限公司
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