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Biomass water-coal-slurry prepared by using livestock breeding wastes

A technology for breeding waste and biomass, applied in the petroleum industry, liquid carbon-containing fuels, fuels, etc., can solve problems such as unreported, and achieve the effects of reducing production costs, low viscosity, and good stability

Active Publication Date: 2014-12-17
XIAN UNVERSITY OF ARTS & SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report on the method of preparing biomass coal-water slurry from livestock and poultry waste at present.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Put Hanglaiwan coal (water content 6.9%) into the sample preparation machine and grind to obtain a particle size distribution of <14 mesh 100%, <20 mesh 98.93%, <40 mesh 96.75%, <120 mesh 56.70%, <200 mesh 40.20%, <320 mesh 35.43% pulverized coal.

[0013] 200g pulverized coal (water content is 6.9%), the breeding waste (mass percentage concentration of solid matter is 32.76%) of 8.53g pig farm is added in 96.30g water, wherein the quality of solid matter in poultry and livestock breeding waste and The mass ratio of dry coal in pulverized coal is 1.5:100, stirred for 20 minutes, and then adjusted its pH value to 9.0 with sodium hydroxide (measured with a pH meter according to the national standard GB / T18856.7-2008) to obtain biomass water coal pulp. According to the national standard GB / T18856.2-2008, the mass percentage concentration of the biomass coal-water slurry was determined to be 62.06% by using the DSH-50-5 type moisture rapid analyzer (provided by Shanghai Yu...

Embodiment 2

[0015] The pulverized coal (moisture content 6.9%) that 200g embodiment 1 grinds, the breeding waste of 2.84g pig farm (the mass percent concentration of solid matter is 32.76%) adds 98.98g water, wherein poultry breeding waste The mass ratio of the solid matter in the medium to the dry coal in the pulverized coal is 0.5:100, stir for 20 minutes, and then adjust its pH value to 8.1 with sodium hydroxide (measured with a pH meter according to the national standard GB / T18856.7-2008) , to obtain biomass coal water slurry. According to the national standard GB / T18856.2-2008, the mass percentage concentration of the biomass coal-water slurry was determined to be 61.97% by using the DSH-50-5 type moisture rapid analyzer (provided by Shanghai Yueping Scientific Instrument Co., Ltd.), according to the national standard GB / T18856.4-2008 uses NDJ-5S rotational viscometer (provided by Shanghai Yueping Scientific Instrument Co., Ltd.) to measure the viscosity of biomass coal-water slurry...

Embodiment 3

[0017] The pulverized coal (moisture content 6.9%) that 200g embodiment 1 grinds, the breeding waste of 5.68g pig farm (the mass percent concentration of solid matter is 32.76%) adds 97.64g water, wherein poultry breeding waste The mass ratio of the solid matter in the medium to the dry coal in the pulverized coal is 1.0:100, stir for 20 minutes, and then adjust its pH value to 8.6 with sodium hydroxide (measured with a pH meter according to the national standard GB / T18856.7-2008) , to obtain biomass coal water slurry. According to the national standard GB / T18856.2-2008, the mass percentage concentration of the biomass coal-water slurry was determined to be 62.32% by using the DSH-50-5 type moisture rapid analyzer (provided by Shanghai Yueping Scientific Instrument Co., Ltd.), according to the national standard GB / T18856.4-2008 uses NDJ-5S rotational viscometer (provided by Shanghai Yueping Scientific Instrument Co., Ltd.) to measure the viscosity of biomass coal-water slurry...

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Abstract

The invention discloses biomass water-coal-slurry prepared by using livestock breeding wastes. The biomass water-coal-slurry is prepared by the following steps: uniformly mixing coal powder, the livestock breeding wastes and water; and adjusting the pH value to 7-9 by sodium hydroxide, wherein the mass ratio of solid matters in the livestock breeding wastes to dry base coal in coal powder is (0.15-1.5) to 100. By replacing additives and part of coal by means of the livestock breeding wastes, the livestock breeding wastes are used as resources, and meanwhile, the use level of coal and water in the pulping process is reduced. The biomass water-coal-slurry has the characteristics of low cost, simple process and environment friendliness. The mass percentage concentration of the obtained biomass water-coal-slurry is not less than 60% and the biomass water-coal-slurry meets the industrial requirements in size distribution, viscosity, pH value and stability.

Description

technical field [0001] The invention belongs to the technical field of preparation of coal-water slurry, and in particular relates to a method for preparing biomass-based coal-water slurry from poultry and livestock breeding waste. Background technique [0002] In recent years, due to the concentrated discharge of livestock and poultry breeding waste in my country, serious problems have arisen in governance. The traditional composting technology is inefficient and seasonal, making it difficult to adapt to the requirements of large-scale farming. However, environmental protection requirements are increasing year by year, making livestock and poultry breeding and environmental protection a contradiction. Therefore, it is a development trend to realize large-scale and resource-based treatment of poultry and livestock waste. Livestock breeding waste is a renewable resource. On the contrary, coal resources are non-renewable resources. Therefore, saving coal and using coal effici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/32
Inventor 孙平张云黄晔李学坤杨菊香薛敏朱奕璇
Owner XIAN UNVERSITY OF ARTS & SCI
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