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Fermented biomass briquette coal and production method thereof

A production method and biomass technology, applied in the direction of waste fuel, petroleum industry, solid fuel, etc., can solve the problems of long fermentation period and poor biomass fermentation effect, and achieve the effects of reducing ash content, reducing ignition point, and improving burnout rate

Active Publication Date: 2015-02-18
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of fermented biomass briquettes and its production method for the problems of long fermentation period and poor biomass fermentation effect in the prior art.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Raw material ratio: 200g of pulverized coal, 50g of sludge, 30g of wheat straw, 5g of sulfur-fixing agent (magnesium slag), 5g of dust-fixing agent (pyrite cinder).

[0028] Production steps:

[0029] (1) Break the wheat straw into 3cm long strips, mix 30g of wheat straw, 15g of tap water and 0.03g of starter, and ferment for 10 days. At this time, the color of wheat straw becomes darker, its texture becomes softer, and obvious bacteria appear on the surface. silk floc, to obtain fermented biomass;

[0030] (2) Take 200g of pulverized coal for coal blending, add 50g of sludge powder, make it fully mixed, then add 5g of sulfur-fixing agent (magnesium slag) and 5g of dust-fixing agent (pyrite slag), and fully stir Mix well, then add fermented and modified long strips of wheat straw, stir evenly, and place for 10 minutes;

[0031] (3) Cold-press the uniformly stirred material into 5 pieces of briquettes, and maintain them naturally for 3 days to obtain fermented biomass ...

Embodiment 2

[0035] Raw material ratio: 200g of pulverized coal, 50g of sludge, 30g of corn straw, 5g of sulfur-fixing agent (carbide slag), 5g of dust-fixing agent (dust from steel mills).

[0036] Production steps:

[0037] (1) Break the corn stalks into 3cm long strips, mix 30g of corn stalks, 15g of tap water and 0.03g of starter, and ferment for 10 days. At this time, the color of the stalks becomes darker, the texture becomes softer, and obvious hyphae appear on the surface floc, to obtain fermented biomass;

[0038] (2) Take 200g of pulverized coal for coal blending, add 50g of sludge powder, make it fully mixed, then add 5g of sulfur-fixing agent (carbide slag) and 5g of dust-fixing agent (dust from steel mills), and fully stir, Then add fermented and modified strips of corn stalks, stir evenly, and place for 10 minutes;

[0039] (3) Cold-press the uniformly stirred material into 5 pieces of briquettes, and maintain them naturally for 3 days to obtain fermented biomass sludge bri...

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Abstract

The invention provides fermented biomass briquette coal and a production method thereof. The fermented biomass briquette coal is prepared from the following raw material components in parts by weight: 150-250 parts of pulverized coal, 25-75 parts of sludge powder, 20-40 parts of biomass, 4-6 parts of a sulfur-fixing agent and 4-6 parts of a dust-fixing agent. The production method comprises the following production steps: (1) crushing biomass and mixing with water and a leavening agent, and fermenting for 7-10 days to obtain fermented biomass; (2) mixing the pulverized coal, the sludge powder, the sulfur-fixing agent and the dust-fixing agent together uniformly, and then adding the fermented biomass, and uniformly mixing; (3) performing cold pressing and molding, and naturally maintaining to obtain the fermented biomass briquette coal. The fermented biomass briquette coal disclosed by the invention not only has the advantages of low ignition point, high burn-off rate, relatively good thermal stability, and the like, but also has relatively high strength and relatively good waterproof performances. Moreover, the content of combusted soot pollutants is low.

Description

technical field [0001] The invention relates to shaped coal, in particular to a fermented biomass shaped coal, in particular to a shaped coal with sludge, coal and fermented biomass as main raw materials and a production method thereof. Background technique [0002] Biomass such as straw is the main solid waste in my country's agricultural production. Stacking and disposal occupy a large amount of agricultural land. Burning straw will cause air pollution, and the reduction degree of composting is low. In order to realize the resource utilization of waste and increase the intensity of digesting agricultural straw, some people add straw to clean briquette as a binder for briquette, and can reduce the ignition point and production cost of briquette. However, when biomass is directly used as an additive to coal briquettes, the resulting product is prone to expansion and deformation, resulting in poor mechanical properties. Therefore, the development of modified biomass briquett...

Claims

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Application Information

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IPC IPC(8): C10L5/04C10L5/10
CPCY02E50/30
Inventor 杨凤玲曹希程芳琴薛芳斌李毓婷
Owner SHANXI UNIV
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