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Method for conducting slurry-spraying granulation by means of biogas residues and biogas slurry

A technology of shotcrete granulation and biogas slurry, which is applied in chemical instruments and methods, liquid droplet granulation, water/sludge/sewage treatment, etc. To improve the quality of agricultural products, facilitate sales, and improve soil characteristics

Inactive Publication Date: 2019-02-22
北京天极视讯科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, first, the process is cumbersome and the production cycle is long; second, the construction cost is high, and two production lines for solid fertilizer and liquid fertilizer are needed; third, farmers do not accept liquid fertilizer due to the inconvenience of fertilization, and the market demand is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The present invention provides a spray granulation method using biogas residue and biogas slurry, which includes the following steps: step 1, concentration control of the biogas slurry; step 2, crushing of the slurry; step 3, spray granulation.

[0037] To select the biogas residue and biogas slurry mixture to be treated, the initial mass concentration of the solids in the biogas residue and biogas slurry mixture needs to be determined. The initial mass concentration of the measurement result is 20%. On this basis, solid organic matter (wherein the solid The organic matter can be organic fertilizer waste such as straws after aerobic fermentation to a solid matter concentration of 25%. The 25% concentration of biogas residue and biogas slurry mixture is wet pulverized to a particle size of 300 mesh to obtain slurry. The slurry is sent to the spray granulation equipment to increase temperature, pressurize, spray and granulate to obtain granular fertilizer. The granular fert...

Embodiment 2

[0039] The present invention provides a spray granulation method using biogas residue and biogas slurry, which includes the following steps: step 1, concentration control of the biogas slurry; step 2, crushing of the slurry; step 3, spray granulation.

[0040] To select the biogas residue and liquid mixture to be treated, the initial mass concentration of the solids in the biogas residue and liquid mixture must be determined. The initial mass concentration of the measurement result is 40%. On this basis, the biogas liquid is added to the mass of the solids. The concentration is 30%. The 30% concentration of biogas residue and biogas slurry mixture is wet pulverized to a particle size of 300 mesh to obtain slurry. The slurry is sent to the spray granulation equipment to increase temperature, pressurize, spray and granulate to obtain granular fertilizer. The size of the granular fertilizer is 2mm, the surface is smooth and the hardness is moderate. After the invention is used, it...

Embodiment 3

[0042] The present invention provides a spray granulation method using biogas residue and biogas slurry, which includes the following steps: step 1, concentration control of the biogas slurry; step 2, crushing of the slurry; step 3, spray granulation.

[0043] To select the biogas residue and liquid mixture to be treated, the initial mass concentration of the solids in the biogas residue and biogas liquid mixture needs to be determined. The initial mass concentration of the measurement result is 35%. On this basis, the biogas liquid is added to the mass of the solids. The concentration is 28%. The 28% concentration of biogas residue and biogas slurry mixture is wet crushed to a particle size of 300 mesh to obtain slurry. The slurry is sent to the spray granulation equipment to increase temperature, pressurize, spray and granulate to obtain granular fertilizer. The granular fertilizer has a size of 2.5 mm, a smooth surface and moderate hardness. After the invention is used, it w...

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Abstract

The invention relates to a method for conducting slurry-spraying granulation by means of biogas residues and biogas slurry. The method comprises the following steps of (1) biogas concentration control, (2) slurry crushing and (3) spraying granulation. After the method for conducting slurry-spraying granulation by means of the biogas residues and the biogas slurry is used, the problem of pollutionof the biogas residues and the biogas slurry can be effectively solved, moreover, the market requirements are met, and selling is convenient.

Description

Technical field [0001] The invention relates to the field of agricultural materials, in particular to a method for spraying and granulating using biogas residue and biogas slurry. Background technique [0002] In recent years, as the living standards of urban and rural residents continue to improve, the residents' demand for meat, eggs, and milk has continued to grow. Promoted the rapid development of the livestock and poultry breeding industry, and the scale of breeding continued to expand. Agricultural wastes such as manure and sewage generated by livestock and poultry breeding pose a serious threat to the atmospheric environment and the living environment of residents around the farm, and seriously affect the quality and safety of urban residents and the production of agricultural products. Therefore, the manure and sewage of livestock and poultry farms must be treated Harmless treatment. At present, the use of biogas engineering anaerobic fermentation technology to treat li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J2/02C02F11/00
CPCB01J2/02C02F11/00
Inventor 刘波王伟
Owner 北京天极视讯科技发展有限公司
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