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Preparation method of granular biomass carbon-based fertilizer

A biomass charcoal and fertilizer technology, applied in organic fertilizers, fertilizer mixtures, fertilization devices, etc., can solve the problems of poor fertilizer adhesion, small pore structure, poor slow release effect, etc. The effect of enhancing bond strength

Inactive Publication Date: 2018-11-23
安徽正基生态农业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the actual production process, it was found that although biochar has a complex pore structure, the pore structure is generally small, and the adhesion effect on fertilizers is poor.
During its use, the fertilizer is easy to precipitate, and the slow-release effect is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A preparation method of granular biomass charcoal-based fertilizer, comprising the following steps:

[0019] (1) In parts by weight, add 27 parts of neodymium chloride and 20 parts of dysprosium chloride to 210 parts of water, raise the water temperature to 80°C, then add 55 parts of sodium oleate powder to it, mix and stir evenly , and heat preservation reaction for 3 hours to obtain oleic acid rare earth;

[0020] (2) Add 8 times the weight of water to the oleic acid rare earth, and then continue to add a dispersant of 1% of the oleic acid rare earth mass, and stir at a high speed to prepare a crop straw modification liquid, and then wash the crop straw Afterwards, cut into small sections with a length of 3 cm, soak them in the crop straw modification solution for 40 minutes, take them out, and perform pyrolysis in a pyrolysis device at 480 ° C to obtain straw biochar;

[0021] (3) After mixing the straw biochar and compound fertilizer evenly according to the mass ra...

Embodiment 2

[0026] A preparation method of granular biomass charcoal-based fertilizer, comprising the following steps:

[0027] (1) In parts by weight, add 30 parts of neodymium chloride and 22 parts of dysprosium chloride into 230 parts of water, raise the water temperature to 85°C, then add 58 parts of sodium oleate powder to it, mix and stir evenly , heat preservation reaction for 3.5 hours, prepared oleic acid rare earth;

[0028] (2) Add water 10 times its weight to the oleic acid rare earth, and then continue to add a dispersant of 2% of the oleic acid rare earth mass, and stir at a high speed to prepare a crop straw modification liquid, and then wash the crop straw Afterwards, cut into small sections with a length of 4 cm, soak them in the crop straw modification solution for 50 minutes, take them out, and perform pyrolysis in a pyrolysis device at 490 ° C to obtain straw biochar;

[0029] (3) After mixing the straw biochar and compound fertilizer evenly according to the mass rati...

Embodiment 3

[0034] A preparation method of granular biomass charcoal-based fertilizer, comprising the following steps:

[0035] (1) In parts by weight, add 33 parts of neodymium chloride and 24 parts of dysprosium chloride to 250 parts of water, raise the water temperature to 90°C, then add 60 parts of sodium oleate powder to it, mix and stir evenly , heat preservation reaction for 4 hours, prepared oleic acid rare earth;

[0036] (2) Add 12 times the weight of water to the oleic acid rare earth, and then continue to add a dispersant of 3% of the oleic acid rare earth mass, and stir at a high speed to prepare a crop straw modification liquid, and then wash the crop straw Afterwards, cut into small sections with a length of 5 cm, soak them in the crop straw modification solution for 60 minutes, take them out, and perform pyrolysis in a pyrolysis device at 500 ° C to obtain straw biochar;

[0037] (3) After mixing the straw biochar and compound fertilizer evenly according to the mass ratio...

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Abstract

The invention discloses a preparation method of granular biomass carbon-based fertilizer, the preparation method comprises the following steps: (1) adding neodymium trichloride and dysprosium chlorideinto water, continuing to add sodium oleate powder, after mixing and stirring evenly, performing heat preservation for reaction to prepare an oleic acid rare earth; (2) adding water and a dispersingagent into the oleic acid rare earth, stirring at a high speed to prepare a crop straw modified liquid, then cutting a crop straw into small pieces after washing, putting the straw pieces into the crop straw modified liquid for soaking treatment, performing pyrolysis after taking out the straw pieces to obtain straw biomass carbon; (3) then after mixing straw biomass carbon with a compound fertilizer, continuing to add a binder, and after stirring evenly, putting the mixture into a disc granulator to obtain a granular biomass carbon-based fertilizer. The granular biomass carbon-based fertilizer prepared by the method has good particle stability, so that the effective components in the fertilizer are not easy to be quickly precipitated, and a good sustained release effect can be obtained.

Description

technical field [0001] The invention belongs to the technical field of biomass fertilizer preparation, and in particular relates to a preparation method of granular biomass charcoal-based fertilizer. Background technique [0002] Biochar production technology can be divided into traditional production technology and modern pyrolysis production technology. The traditional production technology is to produce material charcoal through earth kiln, brick kiln or steel kiln. The characteristic is that the period required for preparation is relatively long, but the yield of biochar is high, such as the preparation of charcoal, bamboo charcoal, etc. Modern pyrolysis technology is a technology that pyrolyzes biomass materials into biochar, mixed gas and bio-oil under anaerobic or hypoxic conditions. It is characterized by short processing time, large processing capacity per unit time of equipment, and biochar The yield is lower than traditional technology. When biochar is applied t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
CPCC05D9/00C05G3/00C05D9/02C05F11/00C05G1/00
Inventor 应坤
Owner 安徽正基生态农业有限公司
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