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Bamboo biomass charcoal based urea and preparation method thereof

A technology of biomass charcoal and urea, applied in the field of urea, can solve the problems such as no research reports on bamboo biomass charcoal and urea, and achieve the effects of good social and economic benefits, reduction of production costs, and simple process.

Inactive Publication Date: 2015-08-05
GUANGDONG DAZHONG AGRI SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, there is no research report on the utilization of bamboo biochar and urea

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] A preparation method of bamboo biomass charcoal-based urea, comprising the following steps:

[0065] (1) pyrolyze bamboo to obtain bamboo biomass charcoal and combustible gas;

[0066] (2) mixing the raw material of urea with bamboo biomass charcoal accounting for 12% of the total weight of urea raw material, melting, granulating, and collecting the pellets; wherein, the heat required for melting is provided by the combustion of the combustible gas;

[0067] The urea includes the following raw materials in parts by weight: 40 parts of granular urea, 0.5 part of urea synergist, 0.08 part of urea anti-caking agent, and 0.5 part of urea modifier;

[0068] (3) Cool the collected pellets under negative pressure for screening;

[0069] (4) Coat the screened pellets, pack and ship, and make bamboo biomass carbon-based urea.

[0070] The step (1) specifically includes: crushing the bamboo to a particle size of 1mm, drying the crushed bamboo until the water content is less tha...

Embodiment 2

[0081] A preparation method of bamboo biomass charcoal-based urea, comprising the following steps:

[0082] (1) pyrolyze bamboo to obtain bamboo biomass charcoal and combustible gas;

[0083] (2) mixing the raw material of urea with bamboo biomass charcoal accounting for 13% of the total weight of urea raw material, melting, granulating, and collecting the pellets; wherein, the heat required for melting is provided by the combustion of the combustible gas;

[0084] The urea includes the following raw materials in parts by weight: 50 parts of granular urea, 0.7 part of urea synergist, 0.09 part of urea anti-caking agent, and 0.7 part of urea modifier;

[0085] (3) Cool the collected pellets under negative pressure for screening;

[0086] (4) Coat the screened pellets, pack and ship, and make bamboo biomass carbon-based urea.

[0087] The step (1) specifically includes: pulverizing the bamboo to a particle size of 1.2mm, drying the pulverized bamboo until the water content is ...

Embodiment 3

[0098] A preparation method of bamboo biomass charcoal-based urea, comprising the following steps:

[0099] (1) pyrolyze bamboo to obtain bamboo biomass charcoal and combustible gas;

[0100] (2) mixing the raw material of urea with bamboo biomass charcoal accounting for 14% of the total weight of urea raw material, melting, granulating, and collecting the pellets; wherein, the heat required for melting is provided by the combustion of the combustible gas;

[0101] The urea includes the following raw materials in parts by weight: 60 parts of granular urea, 1 part of urea synergist, 0.1 part of urea anti-caking agent, and 0.1 part of urea modifier;

[0102] (3) Cool the collected pellets under negative pressure for screening;

[0103] (4) Coat the screened pellets, pack and ship, and make bamboo biomass carbon-based urea.

[0104] The step (1) specifically includes: pulverizing the bamboo to a particle size of 1.5mm, drying the pulverized bamboo until the water content is les...

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Abstract

The invention relates to the technical field of a urea, in particular to a bamboo biomass charcoal based urea and a preparation method thereof. The preparation method comprises the following steps of carrying high temperature pyrolyzing to bamboos to obtain bamboo-based biomass charcoal and combustible gas; melting, pelletizing and collecting particles after a raw material of the urea and 12-16% of biomass charcoal based on the total weight of the raw materials of the urea are mixed; cooling the collected particles with negative pressure, and screening; enveloping the screened particles, and packaging to ship, so as to obtain the bamboo biomass charcoal based urea. The bamboo biomass charcoal based urea provided by the invention is abundant in nutrient, the nutrient elements can be released and coordinated for a long time, the use ratio of the fertilizer nutrients is high, the soil can be effectively improved and fertilized, the use ratio of the fertilizer can be improved, the organic content of the soil can be improved, the soil bulk density can be reduced, the capacity of preserving moisture and fertility of the soil can be improved, the growth of the crops can be promoted, the yield of crops can be significantly improved, the crop quality can be improved, and the significant economic benefit can be realized.

Description

technical field [0001] The invention relates to the technical field of urea, in particular to a bamboo biomass charcoal-based urea and a preparation method thereof. Background technique [0002] Fertilization has become one of the indispensable technical measures of agricultural production, contributing more than half of crop production. The utilization rate of fertilizers in China has always been relatively low. For example, the average utilization rate of nitrogen fertilizers for current crops is only about 30%, which is nearly 20 percentage points lower than that of developed countries. This is due to the unscientific fertilization methods on the one hand, and the fertilizer itself on the other hand. characteristics. It is urgent to improve fertilizer utilization efficiency, and research and development of new multifunctional fertilizers is one of the important ways to improve fertilizer utilization efficiency. [0003] Biochar is a solid product of high-temperature pyr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 林小明
Owner GUANGDONG DAZHONG AGRI SCI CO LTD
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