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Method for preparing fuel from extruded and soft straws

A straw and soft expansion technology is applied in the field of biomass fuel processing, which can solve the problems of difficult molding and low combustion heat of biomass fuel, and achieve the effects of promoting combustion, improving molding combustion density and improving stability.

Active Publication Date: 2018-12-18
安徽聚焰生物科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to the deficiencies of the prior art above, the technical problem to be solved by the present invention is to propose a method for preparing fuel from swollen straw, which solves the problem of swollen straw in the prior art by adopting different pretreatment methods, crushing methods and compression methods. The biomass fuel of straw has low heat of combustion and is not easy to shape.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In this example, the soft straw is a mixture of corn, rapeseed and wheat straw with a mass ratio of 1:2.5:2, and the binder includes the following ingredients in parts by weight: 18 parts of waste oil, 8 parts of activated sludge, and 40 parts of kelp pulp.

[0025] A method for preparing fuel from swollen straw, the method includes pretreatment, pre-crushing, secondary treatment, re-crushing and cold compression, and the specific steps are as follows:

[0026] 1) Pretreatment: Select the collected swollen straw and cut the straw according to the formula, cut it into 7-8cm straw sections, and then put the mixed straw sections in the clear water soaking tank under the power of 750w and frequency of 55Hz Ultrasonic soaking for 25 minutes, the mechanical effect of ultrasound is beneficial to the absorption of soaking liquid by the straw, and at the same time, the cavitation of the ultrasonic will physically destroy the lignin and cellulose of the straw, improve the subseque...

Embodiment 2

[0032]This example is the same as Example 1, except that the soft straw in this example is a mixture of corn, rapeseed and wheat straw with a mass ratio of 1:3:2.5, and the binder includes the following ingredients in parts by weight: 20 parts of waste oil, active 12 parts of sludge, 45 parts of kelp pulp, and the amount of binder added is 15-18% of the amount of straw particles.

Embodiment 3

[0034] This example is the same as Example 1, except that the soft straw in this example is a mixture of corn, rapeseed and wheat straw with a mass ratio of 1:2:1.5, and the binder includes the following ingredients in parts by weight: 15 parts of waste oil, active 5 parts of sludge, 30 parts of kelp pulp, and the amount of binder added is 18-20% of the amount of straw particles.

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Abstract

The invention discloses a method for preparing a fuel from extruded and soft straws, and belongs to the field of processing of biomass fuels. The method comprises the following steps: ultrasonic immersion and hot rolling pretreatment, grinding pre-crushing, semi-anaerobic baking secondary treatment and ultrafine crushing of the extruded and soft straws; addition of illegal cooking oil, activated sludge and kelp slurry as an adhesive; high-speed of the adhesive and obtained crushed straw particles; and compression molding using gradual pressure increase cold compression. The prepare biomass fuel has the advantages of smooth surface, strong adhesion, improved combustion heat and improved combustion quality.

Description

technical field [0001] The invention belongs to the technical field of biomass fuel processing, and in particular relates to a method for preparing fuel from swollen straw. Background technique [0002] Biomass resources are extremely rich clean and renewable resources. They are favored by people for their important characteristics such as renewability, sustainability, diversity, environmental friendliness and affinity to humans. Biomass raw materials are being developed Before utilization, it needs to be crushed, dried, and compressed into blocks or granules, which is conducive to later transportation and combustion utilization. The crushing processing technology is the key and decisive factor for the conversion and utilization of biomass energy. After crushing, the biomass raw materials are granulated From large to small, the surface area per unit mass of the material increases, and the reduction of particle size can increase the total surface area and the number of bondin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/44
CPCC10L5/445C10L2290/34C10L2290/22C10L2290/30C10L2290/28C10L2290/02C10L2290/08C10L2230/22Y02E50/10Y02E50/30
Inventor 沈显华
Owner 安徽聚焰生物科技股份有限公司
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