High-efficiency energy-saving solid mixed fuel moulding technology

A solid fuel, high-efficiency and energy-saving technology, applied in the direction of solid fuel, fuel, biofuel, etc., can solve the problems of unsatisfactory mixing effect and the inability to fully reflect the advantages of co-combustion, so as to avoid excessive demand, mechanical performance and waterproof Good performance and low production cost

Inactive Publication Date: 2016-06-22
CHINA UNIV OF MINING & TECH
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Problems solved by technology

However, the current co-combustion technology is only used in boilers, the mixing effect is not ideal, and the advantages of co-combustion cannot be fully reflected

Method used

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  • High-efficiency energy-saving solid mixed fuel moulding technology

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Embodiment Construction

[0014] Embodiments of the present invention will be further described below in conjunction with accompanying drawings:

[0015] Such as figure 1 Shown, the high-efficiency energy-saving mixed solid fuel production technique of the present invention, it comprises the steps:

[0016] a. Mixing operation: choose biomass and fine coal. The biomass is forest waste, crop straw and animal manure. First, dry the biomass naturally until the water is 20% and remove dust, and then use a scissor crusher Crushed and sieved to 2-7mm, the fine coal is crushed to a diameter of 2-3mm by a reversible impact hammer crusher using the two-end grinding process; the mass ratio of crushed biomass and fine coal is 25%-30% Utilize the feed pipe to drop into the mixing tank, and add 10% composite high-efficiency binder to obtain the mixture, and stir for 10 min in the mixing tank at a speed of 8r / min; the manufacturing process of the composite high-efficiency binder is: After the biomass straw is crus...

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Abstract

The invention relates to a high-efficiency energy-saving solid mixed fuel moulding technology applicable to being used in the field of mixed fuel. The high-efficiency energy-saving solid mixed fuel moulding technology comprises the following steps: firstly naturally drying biomass until moisture content is 20%, then crushing and screening by utilizing a scissor-type crushing machine for selecting a part with the granularity of 2-7mm, crushing slack coal until the granularity is 2-3mm by adopting a two-stage crushing and grinding technology, conveying the crushed biomass and slack coal in a mass ratio of 25-30% into a stirring barrel by virtue of a pneumatic conveying pipeline provided with an automatic control device respectively, adding a composite binder in a mass ratio of 10%, uniformly mixing the components in the stirring barrel, then conveying mixture to moulding equipment by utilizing a conveyor belt, adjusting the shape and size according to practical requirements, moulding, screening qualified moulded products, and conveying the qualified moulded products to a packaging opening to be packaged. The whole technology is high-efficiency, energy-saving and high in automation degree. The produced fuel has good combustion activity, low pollutant discharge, high strength and strong applicability.

Description

technical field [0001] The invention relates to a fuel mixing molding process, in particular to a high-efficiency and energy-saving solid mixed fuel molding process in which biomass and coal are mixed and used in the field of mixed fuels. Background technique [0002] With the vigorous development and utilization of fossil fuels, the resulting energy shortage and environmental pollution have become social problems that need to be solved urgently. Biomass utilization has received extensive attention in recent years. Biomass fuel, as a renewable energy source, is economical and can effectively replace fossil fuels as a renewable energy source, so it is worth vigorously developing. However, biomass has high volatile content and short burning time. After being heated, it will thermally decompose and produce volatiles. The volatiles take away more than half of all the energy, and the waste of energy is serious. Moreover, the energy density of biomass is relatively low, and the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/44C10L5/02
CPCY02E50/10Y02E50/30C10L5/442C10L5/02C10L5/445C10L2290/24C10L2290/30C10L2290/32
Inventor 桂夏辉张鹏德张才德
Owner CHINA UNIV OF MINING & TECH
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