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CN103086809A - Compound-mixed-type humic acid urea and preparation method thereof - Google Patents

Compound-mixed-type humic acid urea and preparation method thereof Download PDF

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Publication number
CN103086809A
CN103086809A CN2013100257251A CN201310025725A CN103086809A CN 103086809 A CN103086809 A CN 103086809A CN 2013100257251 A CN2013100257251 A CN 2013100257251A CN 201310025725 A CN201310025725 A CN 201310025725A CN 103086809 A CN103086809 A CN 103086809A
Authority
CN
China
Prior art keywords
content
nitrogen
urea
humic acid
compound
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2013100257251A
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Chinese (zh)
Inventor
耿春斌
刘强
柴彦亮
杜太坤
高俊刚
杨永庆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANXI CHANGXIN BIOLOGICAL AGRICULTURAL TECHNOLOGY Co Ltd
Original Assignee
SHANXI CHANGXIN BIOLOGICAL AGRICULTURAL TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANXI CHANGXIN BIOLOGICAL AGRICULTURAL TECHNOLOGY Co Ltd filed Critical SHANXI CHANGXIN BIOLOGICAL AGRICULTURAL TECHNOLOGY Co Ltd
Priority to CN2013100257251A priority Critical patent/CN103086809A/en
Publication of CN103086809A publication Critical patent/CN103086809A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a compound-mixed-type humic acid urea and a preparation method thereof, which solves the problems that in organic and inorganic compound fertilizer production, high-nitrogen content raw materials are hard to granulate and nitrogen nutrients cannot be slowly released. The compound-mixed-type humic acid urea is characterized by being prepared by using water and partial steam condensed water generated from the reaction of humic acid with urea as liquid phase; rolling into granules at the state that a balling agent is engaged; after the granules grow to certain particle sizes, throwing out under the action of a disc centrifugal force and driving into a drier through a belt; drying till the moisture is less than or equal to 2.5%; and subsequently screening into a granular fertilizer of 2-4.75mm. The following main technical indexes are achieved: N content is more than or equal to 34%, the organic content is more than or equal to 15%, the moisture is less than or equal to 3%, and the chlorine content is less than or equal to 3%, so that organic and inorganic compound-mixed fertilization production that the nitrogen content is more than 34% is realized, and the compound-mixed-type humic acid urea is particularly applicable to crop fertilization to soil which is short of nitrogen and needs more nitrogen, and has the functions of both improving the soil and increasing the nitrogen utilization rate.

Description

A kind of compound type humic acid urea and preparation method thereof
Technical field
The compound organic and inorganic fertilizer preparation field that the invention belongs to is specifically related to a kind of compound type humic acid urea and preparation method thereof.
Technical background
Along with development and the change of China's agriculture production, compound organic and inorganic fertilizer more and more is subject to the approval in market due to its function that has improvement soil concurrently and improve fertilizer efficiency.But commercially available organic-inorganic compound fertilizer inorganic nutrients (total nitrogen+Vanadium Pentoxide in FLAKES+potassium oxide) multimachine inorganic composite mixed fertilizer product is 25% left and right now, especially nitrogen content is on the low side, nitrogen content is mostly in 10% left and right, the high nitrogen-containing of the compound organic and inorganic fertilizer on market also super only 15%.Nitrogen content adds the major cause that does not get on: though the nitrogen fertilizer raw material is many, nitrogen content is all on the low side, and urea (N 〉=46%) is all selected by general producer.If the low raw material of nitrogen content is arranged during the compound granulation nitrogen content does not increase, balling-up is too poor again with the high raw material of nitrogen content, bad granulation.General enterprises is produced high nitrogen-containing compound organic and inorganic fertilizer main technique has urea to melt granulation and propylhomoserin granulation, any method no matter, if nitrogen content surpasses 15%, traditional production technology can not be produced qualified particle.And nitrogen is the major ingredient of farming object internal protein, and nitrogen has the macroelement that extremely important effect is also general farm crop requirement maximum on crop alimentary, for crop turn green, protein be formed with significance.Nitrogen glut or deficiency all can cause the remarkable underproduction of crop on producing, and applied nitrogen has obvious effect of increasing production.But in traditional mixed organic manure, nitrogen content is too low, especially for some because of nitrogen stress seriously needs emphasis to mend the crop applying amount of nitrogen fertilizer application can be very large, cost up.
Summary of the invention
Purpose of the present invention overcomes above deficiency exactly, a kind of difficult problem that can break through high nitrogen-containing raw material granulation difficulty is provided, contain compound organic and inorganic fertilizer greater than 35mm with produced nitrogen than simple process, not only improve utilization rate of nitrogen fertilizer, thoroughly solved a kind of compound type humic acid urea of nitrogen stress soil application compound organic and inorganic fertilizer high expensive problem and preparation method thereof.
Technical scheme of the present invention is to realize like this, described a kind of compound type humic acid urea and preparation method thereof, it is characterized in that the water and the part vapour condensation water that utilize humic acids and urea reaction to generate are liquid phase, roll into particle under the state that becomes globule to participate in, particle grows to throw away by belt under the effect of disk centrifugal force after certain particle diameter and enters dryer, dries the granular fertilizer that obtains 2~4.75mm to the rear screening of moisture content≤2.5%.This granular fertilizer had both kept the high nitrogen-containing of urea, also kept and had strengthened the restraining effect of humic acids to urea.The preparation method of described a kind of compound type humic acids melanuria element, it is characterized in that adopting the weight part of raw material to be: urea content is 75%, humic acids content is 20%, the inhibitor acid content is 2%, becoming the globule acid content is 3%, the preparation method of described a kind of compound type humic acids melanuria element is characterized in that the key technical indexes reaches: N content 〉=34%, organic content 〉=15%, moisture content≤3%; Cl content≤3%.
The beneficial effect of a kind of compound type humic acid urea of the present invention and preparation method thereof is:
One, having nitrogen content is 35%, be much higher than of the same trade the highest 15% production level, and adopt disk steam granulation process to replace the propylhomoserin method granulation commonly used of composite fertilizer's industry and urine to melt granulation, operate simpler, production cost is lower, farthest reduce the generation of objectionable impurities biuret, guaranteed fertilizer safety.
Two, a kind of compound type humic acid urea and preparation method thereof also can be used for the nitrogen manure of microorganism organic composite fertilizer, in the situation that volume is less, can improve the nitrogen content of microorganism organic composite fertilizer, overcome again simultaneously the defective of the bad granulation of high density nitrogenous fertilizer, made the production efficiency of microorganism organic composite fertilizer improve the advantage more than 50%.
Embodiment;
the present invention is described in further detail below in conjunction with embodiment, a kind of compound type humic acid urea and preparation method thereof, be to adopt weight part to be: urea content is 75%, humic acids content is 20%, the inhibitor acid content is 2%, becoming the globule acid content is 3% to be raw material, the water and the part vapour condensation water that utilize humic acids and urea reaction to generate are liquid phase, roll into particle under the state that becomes globule to participate in, particle grows to throw away by belt under the effect of disk centrifugal force after certain particle diameter and enters dryer, dry the granular fertilizer that obtains 2~4.75mm to the rear screening of moisture content≤2.5%.Its key technical indexes is reached: N content 〉=34%, organic content 〉=15%, moisture content≤3%; The compound type humic acids melanuria element of cl content≤3%.

Claims (3)

1. compound type humic acid urea and preparation method thereof, it is characterized in that the water and the part vapour condensation water that utilize humic acids and urea reaction to generate are liquid phase, roll into particle under the state that becomes globule to participate in, particle grows to throw away by belt under the effect of disk centrifugal force after certain particle diameter and enters dryer, dries the granular fertilizer that obtains 2~4.75mm to the rear screening of moisture content≤2.5%.
2. a kind of compound type humic acid urea as claimed in claim 1 and preparation method thereof, it is characterized in that adopting the weight part of raw material to be: urea content is 75%, and humic acids content is 20%, and the inhibitor acid content is 2%, becoming the globule acid content is 3%.
3. a kind of compound type humic acid urea as claimed in claim 1 and preparation method thereof, is characterized in that the key technical indexes reaches: N content 〉=34%, organic content 〉=15%, moisture content≤3%; Cl content≤3%.
CN2013100257251A 2013-01-10 2013-01-10 Compound-mixed-type humic acid urea and preparation method thereof Pending CN103086809A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013100257251A CN103086809A (en) 2013-01-10 2013-01-10 Compound-mixed-type humic acid urea and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013100257251A CN103086809A (en) 2013-01-10 2013-01-10 Compound-mixed-type humic acid urea and preparation method thereof

Publications (1)

Publication Number Publication Date
CN103086809A true CN103086809A (en) 2013-05-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104402597A (en) * 2014-11-07 2015-03-11 成都新柯力化工科技有限公司 Stable phosphor-oxygen amide fertilizer and preparation method thereof
CN107721742A (en) * 2017-11-09 2018-02-23 山西师范大学 Humic acid exempts from heating and is granulated working system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU9199882A (en) * 1981-12-31 1983-07-07 Scientific & Applied Processes Pty. Ltd. Humus-based fertiliser compositions
CN1580005A (en) * 2003-08-08 2005-02-16 张明 Humic acid urea
CN1887819A (en) * 2006-07-13 2007-01-03 杭州艾可泰投资有限公司 Prepn of humic urea
WO2009078691A1 (en) * 2007-12-19 2009-06-25 Mezclas Y Fertilizantes, S.A. De C.V. Liquid fertiliser composition
CN101817703A (en) * 2010-03-13 2010-09-01 李金伟 Compound fertilizer
CN102503628A (en) * 2011-10-24 2012-06-20 山东农大肥业科技有限公司 Preparation method of humic acid/urea long-acting nitrogen fertilizer
CN102731192A (en) * 2012-07-13 2012-10-17 山西师范大学 Humic acid compound fertilizer production process

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU9199882A (en) * 1981-12-31 1983-07-07 Scientific & Applied Processes Pty. Ltd. Humus-based fertiliser compositions
CN1580005A (en) * 2003-08-08 2005-02-16 张明 Humic acid urea
CN1887819A (en) * 2006-07-13 2007-01-03 杭州艾可泰投资有限公司 Prepn of humic urea
WO2009078691A1 (en) * 2007-12-19 2009-06-25 Mezclas Y Fertilizantes, S.A. De C.V. Liquid fertiliser composition
CN101817703A (en) * 2010-03-13 2010-09-01 李金伟 Compound fertilizer
CN102503628A (en) * 2011-10-24 2012-06-20 山东农大肥业科技有限公司 Preparation method of humic acid/urea long-acting nitrogen fertilizer
CN102731192A (en) * 2012-07-13 2012-10-17 山西师范大学 Humic acid compound fertilizer production process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
成绍鑫: "《腐植酸类物质概论》", 31 December 2007, 化学工业出版社 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104402597A (en) * 2014-11-07 2015-03-11 成都新柯力化工科技有限公司 Stable phosphor-oxygen amide fertilizer and preparation method thereof
CN104402597B (en) * 2014-11-07 2017-02-15 成都新柯力化工科技有限公司 Stable phosphor-oxygen amide fertilizer and preparation method thereof
CN107721742A (en) * 2017-11-09 2018-02-23 山西师范大学 Humic acid exempts from heating and is granulated working system
CN107721742B (en) * 2017-11-09 2021-01-01 山西师范大学 Heat-free granulation production method of humic acid

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Application publication date: 20130508