CN108456050A - A kind of pelletizing additives of the production rounded grain mineral fertilizer of low cost - Google Patents
A kind of pelletizing additives of the production rounded grain mineral fertilizer of low cost Download PDFInfo
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- CN108456050A CN108456050A CN201810069413.3A CN201810069413A CN108456050A CN 108456050 A CN108456050 A CN 108456050A CN 201810069413 A CN201810069413 A CN 201810069413A CN 108456050 A CN108456050 A CN 108456050A
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- China
- Prior art keywords
- fertilizer
- mineral fertilizer
- low cost
- rounded grain
- production
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C11/00—Other nitrogenous fertilisers
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
Abstract
The present invention relates to a kind of pelletizing additives of the production rounded grain mineral fertilizer of low cost.The invention belongs to mineral fertilizer technical fields.A kind of pelletizing additives of the production rounded grain mineral fertilizer of low cost, its main feature is that:The constituent mass percentage of the pelletizing additives of the production rounded grain mineral fertilizer of low cost is attapulgite 50 73%, disintegrant 22 42%, amino acid 2 5%, magnesium sulfate 2 3%.Attapulgite is some or all of to be substituted by cross-linked amylose or bentonite.The pelletizing additives of the present invention are cheap and additive amount is relatively low, both the production cost of rounded grain mineral fertilizer can greatly have been reduced, ensure that the active ingredient in rounded grain mineral fertilizer keeps higher ratio again, particulate mineral fertilizer can be met simultaneously and be disintegrated the two the high requirements of fast and intensity.
Description
Technical field
The invention belongs to mineral fertilizer (soil conditioner) technical fields, more particularly to a kind of production circle of low cost
The pelletizing additives of grain mineral fertilizer.
Background technology
Currently, in country's limitation a great number of elements fertilizer amount, advocate weight-reducing synergy, advocate supplement Meso- and micro-nutrients and
Under the big situation of organic matter fertilizer, realization the year two thousand twenty chemical fertilizer and pesticide zero growth rate, mineral fertilizer (soil conditioner) industry is vigorously sent out
Exhibition.Mineral fertilizer is using natural minerals such as potassium feldspar, rock phosphate in powder, zeolite, lime stone, dolomite, medical stones as primary raw material system
At a kind of new-type fertilizer, wherein the calcium magnesium phosphate, siliceous fertilizer, calcium silicate fertilizer, silicon-calcium-potafertilizer fertilizer, the silicon that are produced with high temperature sintering or fusion method
Calcium-potash-magnesia, potash-lime fertilizer, potassium silicon fertilizer and its derived product belong to a major class of mineral fertilizer, and main nutrient composition is can be by plant
Effective silicon, effective calcium, available phosphorus, effective potassium, the effective magnesium absorbed.Mineral fertilizer is to realize full-nutritive equilibrium fertilising, conditioned soil
Earth environment, enhancing Nutrient Absorption, one of the important leverage for increasing crop yield and promotion quality etc..
Fertiliser granulates are one of the development trends of current chemical fertilizer, because granulated fertilizer fertilising is easy, and can realize machinery
Change fertilising etc..While granulated fertilizer similar in kind difference but size can realize direct blending, obtain the compound fertilizer (BB of low cost
Fertilizer), therefore as granulation of fertilizer technology continues to develop, mineral fertilizer is all manufactured into grain products mostly.It is existing to be directed to mineral
The pelletizing additives cost of fertilizer is higher, and particulate mineral fertilizer per ton only pelletizing additives one are increased by cost about 150-200
There are the series of problems such as the cost for considerably increasing grain products in member.
Invention content
The present invention provides a kind of production rounded grain mineral of low cost to solve technical problem present in known technology
The pelletizing additives of fertilizer.
The object of the present invention is to provide one kind to have cost relatively low, can ensure circle in the case where addition is fewer
The granulation of the production rounded grain mineral fertilizer of the low cost of the features such as grain higher intensity of mineral fertilizer and preferable disintegrating property
Additive.
Pelletizing additives for producing rounded grain mineral fertilizer are mixed by attapulgite, disintegrant, amino acid, magnesium sulfate
It closes and is uniformly made, include the following components'mass percentage:
Attapulgite some or all of can be substituted by cross-linked amylose or bentonite.
Disintegrant is the biological species waste rich in cellulose, hemicellulose, lignin.
It is to use epipastic mineral fertilizer for raw material to produce rounded grain mineral fertilizer, and epipastic mineral fertilizer refers to being burnt using high temperature
Calcium magnesium phosphate prepared by knot or fusion method, calcium silicate fertilizer, silicon-calcium-potafertilizer fertilizer, silico-calcium potassic-magnesian fertilizer, potash-lime fertilizer, potassium silicon fertilizer and its spreads out at siliceous fertilizer
Production product, main nutrient composition are effective silicon, effective calcium, available phosphorus, effective potassium, the effective magnesium that can be absorbed by plant root.
The pelletizing additives of the production rounded grain mineral fertilizer of low cost of the invention are adopted the technical scheme that:
A kind of pelletizing additives of the production rounded grain mineral fertilizer of low cost, its main feature is that:The production circle of low cost
The constituent mass percentage of the pelletizing additives of grain mineral fertilizer is attapulgite 50-73%, disintegrant 22-42%, amino acid
2-5%, magnesium sulfate 2-3%.
The pelletizing additives of the production rounded grain mineral fertilizer of low cost of the invention can also adopt the following technical scheme that:
The pelletizing additives of the production rounded grain mineral fertilizer of the low cost, its main feature is that:Attapulgite part or
Person is all substituted by cross-linked amylose or bentonite.
The pelletizing additives of the production rounded grain mineral fertilizer of the low cost, its main feature is that:Disintegrant is fibre-bearing
The biological species waste of element, hemicellulose, lignin.
The pelletizing additives of the production rounded grain mineral fertilizer of the low cost, its main feature is that:Produce rounded grain mineral
Fertilizer is epipastic mineral fertilizer using raw material, epipastic mineral fertilizer be the calcium magnesium phosphate prepared using sintering or fusion method, siliceous fertilizer,
Calcium silicate fertilizer, silicon-calcium-potafertilizer fertilizer, silico-calcium potassic-magnesian fertilizer, potash-lime fertilizer, potassium silicon fertilizer and its derived product.
The invention has the advantages and positive effects that:
The pelletizing additives of the production rounded grain mineral fertilizer of low cost as a result of the completely new technical solution of the present invention,
Compared with prior art, the invention has the characteristics that:
1) pelletizing additives raw material be easy to get extensively, relatively low (one cost of particulate mineral granulation of fertilizer additive per ton of cost<
50 yuan);
2) contain the component beneficial to plant growth and improvement soil in pelletizing additives raw material;
3) utilize the rounded grain mineral fertilizer of pelletizing additives production that can realize 100% water disintegration, and intensity can expire
Sufficient market needs.
Specific implementation mode
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and it is described in detail
It is as follows:
The pelletizing additives of the production rounded grain mineral fertilizer of low cost, each component mass percent are attapulgite 50-
73%, disintegrant 22-42%, amino acid 2-5%, magnesium sulfate 2-3%.Wherein, attapulgite can be some or all of by handing over
Join amylose or bentonite substitutes.Disintegrant is the biological species waste of containing cellulose, hemicellulose, lignin;Main packet
It includes:Sugar residue, residue of monosodium glutamate, furfural dregs etc..Amino acid includes mainly lysine, threonine, tryptophan etc..
The primary raw material of production rounded grain mineral fertilizer is epipastic mineral fertilizer, and epipastic mineral fertilizer is to use high temperature sintering
Or calcium magnesium phosphate, siliceous fertilizer, calcium silicate fertilizer, silicon-calcium-potafertilizer fertilizer, silico-calcium potassic-magnesian fertilizer, potash-lime fertilizer, potassium silicon fertilizer and its derivative prepared by fusion method
Product.
Embodiment 1 is to embodiment 6
The pelletizing additives of the production rounded grain mineral fertilizer of low cost, the pelletizing additives of embodiment 1 to embodiment 6 are each
The additive amount of component proportion and pelletizing additives, granule strength and disintegration time, are shown in Table 1.
The additive amount of 1 pelletizing additives each group distribution ratio of table and pelletizing additives
Wherein, the disintegrant of embodiment 1,2,3 and 4 is corn sugar residue, and amino acid is lysine.
The attapulgite of embodiment 5 is replaced by amylose, and disintegrant is residue of monosodium glutamate, and amino acid is threonine.
The attapulgite of embodiment 6 is replaced by bentonite, and disintegrant is furfural dregs, and amino acid is tryptophan.
The pelletizing additives of the low cost of the present invention are used for rounded grain mineral fertilizer production method:By epipastic mineral fertilizer and
After pelletizing additives are sufficiently mixed, pass through disc granulation, wet granular screening, particle drying, particle cooling, finished product screener successively
Sequence obtains rounded grain mineral fertilizer.The mass ratio of epipastic mineral fertilizer and pelletizing additives is (85-92):(8-15).Wherein make
It is (12-20) that the quality of water and mixed material mass ratio are sprayed into grain link:100.Drying is to particle moisture content≤3%, cooling
1mm-4.75mm rounded grain mineral fertilizer products, granule strength >=8N, disintegration time is made after machine is cooling, screening machine sieves<
20s。
The specific implementation process of the embodiment of the present invention:
(1) epipastic mineral fertilizer is prepared:Calcium magnesium phosphate, siliceous fertilizer, calcium silicate fertilizer, the silicon prepared using high temperature sintering or fusion method
The mineral fertilizers such as calcium potash fertilizer, silico-calcium potassic-magnesian fertilizer, potash-lime fertilizer, potassium silicon fertilizer and its derived product, after high-temperature calcination, sintered product with
Vitreum, melt, it is granular in addition it is big it is blocky exist, it is water cooled or air-cooled after grinding to certain fineness obtain epipastic mineral fertilizer.
(2) pelletizing additives of low cost are prepared:Attapulgite, disintegrant, amino acid, magnesium sulfate are pressed to the quality of table 1
Ratio weighs respectively, is uniformly mixed and obtains.
(3) raw material mixes:The pelletizing additives prepared and epipastic mineral fertilizer are claimed by the mass ratio of table 1
Amount is added in batch mixer and is uniformly mixed.
(4) raw material is granulated:Uniformly mixed material is added in granulating disc, during disk rotational, passes through spray
The mass ratio of water of the head into material after penetrating atomization, water and material is (12-20):100, it can be timely according to the condition of production
Adjustment.
(5) screening, drying, cooling of grain products and packaging:Grain products by grain size more than 1mm are at 180-240 DEG C
Lower drying is less than 3%, after cooling in 25-35 minutes to moisture content, and screening obtains the rounded grain mineral fertilizer of 1mm-4.75mm, packs.
Main problem present in traditional round particulate mineral fertilizer preparation process has:(1) of high cost:Particulate mineral fertilizer per ton
Material only pelletizing additives one are increased by cost about 150-200 members, or even more than 200 yuan;(2) intragranular disintegration is poor:It applies
After soil, the long period is still in granular form, and cannot disperse, and influences absorption of the crop to nutritional ingredient;(3) granule strength compared with
It is low, than more prominent the phenomenon that broken ball, picking in transport process.
From the results shown in Table 1, pelletizing additives using the present invention both can greatly reduce rounded grain mineral
The production cost of fertilizer, and ensure the higher ratio of active ingredient holding in rounded grain mineral fertilizer, while granule strength >=
8N, disintegration time<20s, has well solved the above problem, and product accords with the demands of the market.
Present disclosure is not limited in the above embodiments, and the technical staff in same domain can be the present invention's
Other embodiments can be proposed within technological guidance's thought easily, such as:It reduces raw material and mixes link, pelletizing additives are each
Batch mixer is added according to corresponding proportion with epipastic mineral fertilizer and is uniformly mixed simultaneously for kind raw material;Or during pelletizing additives are formed
One or more water-soluble dissolution of raw material to water in spray into pelletizing disks, and other raw materials are still mixed according to corresponding ratio
It closes uniform, can obtain and above-described embodiment is similarly as a result, such embodiment is same domain technical staff in above-mentioned implementation
It is readily apparent that on the basis of example, therefore such embodiment belongs to the scope of the present invention.
Claims (4)
1. a kind of pelletizing additives of the production rounded grain mineral fertilizer of low cost, it is characterized in that:The production rounded grain of low cost
The constituent mass percentage of the pelletizing additives of mineral fertilizer is attapulgite 50-73%, disintegrant 22-42%, amino acid 2-
5%, magnesium sulfate 2-3%.
2. the pelletizing additives of the production rounded grain mineral fertilizer of low cost according to claim 1, it is characterized in that:It is concave-convex
Stick soil is some or all of to be substituted by cross-linked amylose or bentonite.
3. the pelletizing additives of the production rounded grain mineral fertilizer of low cost according to claim 1 or 2, it is characterized in that:
Disintegrant is the biological species waste of containing cellulose, hemicellulose, lignin.
4. the pelletizing additives of the production rounded grain mineral fertilizer of low cost according to claim 1 or 2, it is characterized in that:
Production rounded grain mineral fertilizer is epipastic mineral fertilizer using raw material, and epipastic mineral fertilizer is prepared using sintering or fusion method
Calcium magnesium phosphate, siliceous fertilizer, calcium silicate fertilizer, silicon-calcium-potafertilizer fertilizer, silico-calcium potassic-magnesian fertilizer, potash-lime fertilizer, potassium silicon fertilizer and its derived product.
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110803959A (en) * | 2019-11-29 | 2020-02-18 | 烟台市烟农富邦肥料科技有限公司 | Special granulating agent for producing round granular calcium magnesium phosphate fertilizer and application thereof |
CN112500228A (en) * | 2020-12-18 | 2021-03-16 | 湖北都兴隆农业技术有限公司 | Fertilizer improvement disintegrating agent and preparation method thereof |
CN113213975A (en) * | 2021-04-23 | 2021-08-06 | 湖北富邦科技股份有限公司 | Round-particle potash fertilizer with instant dissolution characteristic and preparation method thereof |
CN113387744A (en) * | 2021-05-26 | 2021-09-14 | 龙蟒大地农业有限公司 | Granular medium element fertilizer based on phosphorite flotation tailings and preparation method thereof |
CN113717004A (en) * | 2021-09-23 | 2021-11-30 | 湖北富邦科技股份有限公司 | Drying-free production method of silicate-containing sandy fertilizer |
CN115057747A (en) * | 2022-07-13 | 2022-09-16 | 方城县华裕肥料有限公司 | Granulation process of soil conditioner |
WO2022222355A1 (en) * | 2021-04-23 | 2022-10-27 | 湖北富邦科技股份有限公司 | Calcium magnesium phosphate fertilizer granulating agent and application thereof |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1119828A (en) * | 1993-03-25 | 1996-04-03 | 拉伯法姆公司 | Cross-linked amylose as a binder/disintegrant in tablets |
CN1481346A (en) * | 2001-10-31 | 2004-03-10 | 杰富意钢铁株式会社 | Raw material for silicate phosphate fertilizer and method for prodn thereof |
CN101589710A (en) * | 2009-07-03 | 2009-12-02 | 深圳市朗钛生物科技有限公司 | A kind of agricultural water dispersible granule and its production and application |
CN101692808A (en) * | 2009-09-30 | 2010-04-14 | 深圳诺普信农化股份有限公司 | Emamectin benzoate solid lipid nanoparticle and preparation method and application thereof in pesticide formulation |
CN101844949A (en) * | 2010-05-31 | 2010-09-29 | 中港泰富(北京)高科技有限公司 | Disintegration-type silicon-calcium-magnesium fertilizer |
CN102775220A (en) * | 2012-08-22 | 2012-11-14 | 张�浩 | Disintegratable round-granule sulfur magnesium fertilizer and preparation method thereof |
CN103804102A (en) * | 2012-11-13 | 2014-05-21 | 邳州金成肥业有限公司 | Synergic composite nitrogen fertilizer and preparation method thereof |
CN204237803U (en) * | 2014-03-17 | 2015-04-01 | 天津百伦斯生物技术有限公司 | A kind of adjust ph borate buffer substrate tablet |
CN106220338A (en) * | 2016-07-22 | 2016-12-14 | 天津水泥工业设计研究院有限公司 | A kind of pelletize disintegrating agent for producing rounded grain mineral fertilizer |
-
2018
- 2018-01-24 CN CN201810069413.3A patent/CN108456050A/en active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1119828A (en) * | 1993-03-25 | 1996-04-03 | 拉伯法姆公司 | Cross-linked amylose as a binder/disintegrant in tablets |
CN1481346A (en) * | 2001-10-31 | 2004-03-10 | 杰富意钢铁株式会社 | Raw material for silicate phosphate fertilizer and method for prodn thereof |
CN101589710A (en) * | 2009-07-03 | 2009-12-02 | 深圳市朗钛生物科技有限公司 | A kind of agricultural water dispersible granule and its production and application |
CN101692808A (en) * | 2009-09-30 | 2010-04-14 | 深圳诺普信农化股份有限公司 | Emamectin benzoate solid lipid nanoparticle and preparation method and application thereof in pesticide formulation |
CN101844949A (en) * | 2010-05-31 | 2010-09-29 | 中港泰富(北京)高科技有限公司 | Disintegration-type silicon-calcium-magnesium fertilizer |
CN102775220A (en) * | 2012-08-22 | 2012-11-14 | 张�浩 | Disintegratable round-granule sulfur magnesium fertilizer and preparation method thereof |
CN103804102A (en) * | 2012-11-13 | 2014-05-21 | 邳州金成肥业有限公司 | Synergic composite nitrogen fertilizer and preparation method thereof |
CN204237803U (en) * | 2014-03-17 | 2015-04-01 | 天津百伦斯生物技术有限公司 | A kind of adjust ph borate buffer substrate tablet |
CN106220338A (en) * | 2016-07-22 | 2016-12-14 | 天津水泥工业设计研究院有限公司 | A kind of pelletize disintegrating agent for producing rounded grain mineral fertilizer |
Non-Patent Citations (2)
Title |
---|
武汉医学院药学系: "《药剂学》", 13 December 1975, 武汉医学院药学系 * |
陈金珠主编: "《有机化学 第2版》", 31 January 2017, 北京理工大学出版社 * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110803959A (en) * | 2019-11-29 | 2020-02-18 | 烟台市烟农富邦肥料科技有限公司 | Special granulating agent for producing round granular calcium magnesium phosphate fertilizer and application thereof |
CN112500228A (en) * | 2020-12-18 | 2021-03-16 | 湖北都兴隆农业技术有限公司 | Fertilizer improvement disintegrating agent and preparation method thereof |
CN113213975A (en) * | 2021-04-23 | 2021-08-06 | 湖北富邦科技股份有限公司 | Round-particle potash fertilizer with instant dissolution characteristic and preparation method thereof |
WO2022222355A1 (en) * | 2021-04-23 | 2022-10-27 | 湖北富邦科技股份有限公司 | Calcium magnesium phosphate fertilizer granulating agent and application thereof |
CN113387744A (en) * | 2021-05-26 | 2021-09-14 | 龙蟒大地农业有限公司 | Granular medium element fertilizer based on phosphorite flotation tailings and preparation method thereof |
CN113717004A (en) * | 2021-09-23 | 2021-11-30 | 湖北富邦科技股份有限公司 | Drying-free production method of silicate-containing sandy fertilizer |
WO2023044842A1 (en) * | 2021-09-23 | 2023-03-30 | 湖北富邦科技股份有限公司 | No-drying production method for silicate-containing sandy fertilizer |
CN115057747A (en) * | 2022-07-13 | 2022-09-16 | 方城县华裕肥料有限公司 | Granulation process of soil conditioner |
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Application publication date: 20180828 |