Chinese medicine residue biomass charcoal-based urea, and preparation method thereof

A technology of biochar and traditional Chinese medicine dregs, which is applied in the field of urea, can solve the problems of unseen research reports on biochar and urea of ​​traditional Chinese medicine dregs, increase soil fertility and available nutrient content, promote the formation of soil aggregates, and The effect of living space

Inactive Publication Date: 2015-08-12
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 are no research reports on the utiliza

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A preparation method of traditional Chinese medicine dregs biomass carbon-based urea, comprising the following steps:

[0057](1) Pyrolyzing the residue of traditional Chinese medicine at high temperature to obtain biochar and combustible gas from residue of traditional Chinese medicine;

[0058] (2) Mix the raw material of urea with biochar of traditional Chinese medicine residue accounting for 12% of the total raw material weight of urea, melt and granulate, and collect the pellets; wherein, the heat required for melting is provided by the combustion of the combustible gas;

[0059] The urea includes the following raw materials in parts by weight: 60 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;

[0060] (3) Cool the collected pellets under negative pressure for screening;

[0061] (4) Coat the screened pellets, pack and ship, and prepare biomass carbon-based urea from traditional Chinese medic...

Embodiment 2

[0073] A preparation method of traditional Chinese medicine dregs biomass carbon-based urea, comprising the following steps:

[0074] (1) Pyrolyzing the residue of traditional Chinese medicine at high temperature to obtain biochar and combustible gas from residue of traditional Chinese medicine;

[0075] (2) Mix the raw material of urea with biochar of traditional Chinese medicine slag accounting for 13% of the total raw material weight of urea, melt and granulate, and collect the pellets; wherein, the heat required for melting is provided by the combustion of the combustible gas;

[0076] The urea includes the following raw materials in parts by weight: 62 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;

[0077] (3) Cool the collected pellets under negative pressure for screening;

[0078] (4) Coat the screened pellets, pack and ship, and prepare biomass carbon-based urea from traditional Chinese medicin...

Embodiment 3

[0090] A preparation method of traditional Chinese medicine dregs biomass carbon-based urea, comprising the following steps:

[0091] (1) Pyrolyzing the residue of traditional Chinese medicine at high temperature to obtain biochar and combustible gas from residue of traditional Chinese medicine;

[0092] (2) Mix the raw material of urea with the biomass charcoal of traditional Chinese medicine residue accounting for 14% of the total raw material weight of urea, melt and granulate, and collect the pellets; wherein, the heat required for melting is provided by the combustion of the combustible gas;

[0093] The urea includes the following raw materials in parts by weight: 65 parts of granular urea, 1 part of urea synergist, 0.1 part of urea anti-caking agent, and 0.1 part of urea modifier;

[0094] (3) Cool the collected pellets under negative pressure for screening;

[0095] (4) Coat the screened pellets, pack and ship, and prepare biomass carbon-based urea from traditional Ch...

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Abstract

The invention belongs to the technical field of urea, and more specifically relates to a Chinese medicine residue biomass charcoal-based urea, and a preparation method thereof. The preparation method comprises following steps: Chinese medicine residue is subjected to high temperature pyrolyzing so as to obtain Chinese medicine residue biomass charcoal and combustible gas; an urea raw material is mixed with the Chinese medicine residue biomass charcoal, and an obtained mixture is subjected to fusion and pelleting, and an obtained pellet material is collected, wherein the amount of the Chinese medicine residue biomass charcoal accounts for 12 to 16% of the total weight amount of the urea raw material; the pellet material is subjected to negative pressure cooling and screening; the screened pellet material is subjected to membrane coating, packaging, and discharging so as to obtain the Chinese medicine residue biomass charcoal-based urea. The Chinese medicine residue biomass charcoal-based urea is abundant in nutrients; nutritional element release is coordinated, and lasts long; fertilizer nutrient utilization rate is high; the Chinese medicine residue biomass charcoal-based urea is capable of improving and fertilizing soil effectively; fertilizer utilization rate is increased; soil organic content is reduced; soil bulk density is reduced; soil water and nutrient retention capacity is improved; crop growth is promoted; crop yield is increased obviously; crop quality is improved; and economic benefits are excellent.

Description

technical field [0001] The invention relates to the technical field of urea, in particular to a biomass carbon-based urea of ​​traditional Chinese medicine residue 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 soli...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/08C01B31/12C05G3/80C05G3/90
CPCY02P60/21Y02A40/22
Inventor 林小明
Owner GUANGDONG DAZHONG AGRI SCI CO LTD
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