CN104291917A - Bentonite-based granular composite fertilizer anti-caking agent and preparation method thereof - Google Patents
Bentonite-based granular composite fertilizer anti-caking agent and preparation method thereof Download PDFInfo
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- CN104291917A CN104291917A CN201310295822.2A CN201310295822A CN104291917A CN 104291917 A CN104291917 A CN 104291917A CN 201310295822 A CN201310295822 A CN 201310295822A CN 104291917 A CN104291917 A CN 104291917A
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- caking agent
- hard caking
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- 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
- C05G3/20—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for preventing the fertilisers being reduced to powder; Anti-dusting additives
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Abstract
The invention relates to a preparation method of a bentonite-based granular composite fertilizer anti-caking agent. The agent is composed of granular bentonite, an additive, a modifier, and water with a certain mass ratio. The preparation method comprises the following steps: 60-80 parts of bentonite and 10-30 parts of the additive are premixed, crushed, and sieved with a 200-mesh standard sieve, such that premixed dry powder is prepared, wherein the additive is one or more selected from bio-char, white carbon black and soot carbon powder; 4-8 parts of the modifier and 3-5 parts of water are sprayed to the premixed dry powder, wherein the modifier is one or two selected from waste animal-vegetable fat or vegetable pitch; the mixture is stirred to form uniform pre-granulated wet powder; the pre-granulated wet powder is granulated into 2-4mm granules in a granulator; the granules are dried at a temperature of 80 DEG C in a tumble dryer, such that the granular anti-caking agent is prepared. When in use, the granular anti-caking agent is uniformly mixed with a composite fertilizer according to a proportion that 50kg of the anti-caking agent is added to each ton of the composite fertilizer. The preparation method is convenient, and is suitable for large-scale productions. The anti-caking agent has the advantages of low application cost, good anti-caking effect, and pure-natural and environment-friendly raw materials. With the anti-caking agent, soil fertilizer efficiency can be enhanced. The method has great application prospect in the field of composite fertilizer caking prevention.
Description
Technical field
The present invention relates to a kind of additive of composite fertilizer, refering in particular to and relating to one is that raw material prepares granular compound fertilizer anti-hard caking agent and method thereof with wilkinite.
Background technology
In powdery or granular inorganic and organic compound, particularly as chemical fertilizer such as ammonium sulfate, bicarbonate of ammonia, ammonium nitrate, ammonium phosphate, urea, compound manure, all there is very strong water absorbability.Due to the change of the ambient conditionss such as temperature, humidity, extruding, make the chemical fertilizer of these types be easy to caking phenomenon occurs, form the hard lump being difficult to fragmentation, cause the exceptional hardship in use.
Along with the development of China's agricultural, composite fertilizer's demand is increasing, but the agglomeration problems of composite fertilizer is one of important factor affecting composite fertilizer's quality always.The caking of composite fertilizer not only gives the storage of fertiliser production enterprise, transport brings very large difficulty, more importantly give vast user particularly mechanical fertilization bring inconvenience.In order to solve chemical fertilizer, the particularly agglomeration problems of composite fertilizer, has carried out large quantity research both at home and abroad, have developed multiple effective preventing block method.
Preventing the major measure that compound manure lumps from having at present: one is the water content by reducing fertilizer in production process, controlling packaging temp and improving fertiliser granulates uniformity coefficient to solve; Two is when normal production, uses anti-hard caking agent to carry out anti-caking process to fertilizer, to solve the agglomeration problems of fertilizer.First method due to its fund input too high, and to have little effect, so fertiliser production enterprise is all generally the agglomeration problems being solved fertilizer by additional anti-hard caking agent now.
Composite chemical fertilizer anti-hard caking agent mainly contains solid inert powder class anti-hard caking agent and liquid anti-agglomeration agent two class at present.As solid inert powder class anti-hard caking agent one inert substance of fertilizer anti-caking agents as one or more in kaolin, talcum powder, diatomite, wilkinite, attapulgite, powdered rice hulls, straw powder etc., wear into the powder of certain particle size, stick to the surface of fertiliser granulates uniformly, there is the effect of mechanical isolation and absorbing particles surface-moisture, prevent the formation of intercrystalline point of connection, thus prevent caking.Such as, Chinese invention patent CN200710168570.1 anti-caking agent for mineral composite fertilizer and manufacture method thereof and application, Chinese invention patent CN201010584662.X natural environmental-protective type compound fertilizer anticaking agent and application, Chinese invention patent CN201010514965.4 potassium humate compound fertilizer and compound method, Chinese invention patent CN200910273234.2 natural degradable compound fertilizer anticaking agent and manufacture method, a Chinese invention patent CN201110008370.6 straw powder-based anti-blocking agent of compound fertilizer etc. all belong to this type.
Another kind of be used as fertilizer anti-caking agents be liquid anti-agglomeration agent, mainly contain tensio-active agent and nonsurfactant, but surfactant type is in the majority, as alkyl-sulphate, fatty acid ester, amine system salt, ketonic acid salt etc., such as Chinese invention patent CN01129002.1 is for the preparation of the anti-blocking loosening agent of loose composite fertilizer with long storage period, Chinese invention patent CN200810045408.5 anticaking agent for nitrocompound, liquid anti-caking agent of a Chinese invention patent CN201010537927.0 fertilizer and preparation method thereof, the preparation method of a Chinese invention patent CN201010584595.1 natural degradable compound fertilizer anticaking agent and application etc. all belong to this type of anti-hard caking agent.
The anti-hard caking agent of above-mentioned two types has its respective shortcoming.Although pressed powder class anti-hard caking agent is less to environmental hazard, when using, addition is excessive, can produce larger impact to the overall fertilizer efficiency of fertilizer; And after the storage of long period, the effect of anti-caking can reduce and even disappears; In addition due to powder in fertiliser granulates surface adhesion loosely, a large amount of dust can be produced during use, harm user healthy.Liquid surfactant type anti-hard caking agent because its consumption is little, successful etc. and being favourably welcome, but its price is general costly, can increase the anti-caking cost of fertilizer; And tensio-active agent is generally organic substance, life-time service can cause the hardening soil, contaminated soil, to the growth of crop with increase income generation adverse influence.
Summary of the invention
For solving during above-mentioned two kinds of anti-hard caking agents use the deficiency existed, the invention provides a kind of particulate state phosphate fertilizer anti-hard caking agent prepared with wilkinite, charcoal and discarded animal-plant oil, this kind anti-hard caking agent preparation technology is simple, cost is low, anti-caking performance is good, easy to use and environmentally friendly.
This bentonite base granular compound fertilizer anti-hard caking agent of the present invention, is characterized in that: its composition in mass ratio content is: wilkinite 60 ~ 80 parts, additive 10 ~ 30 parts, properties-correcting agent 4 ~ 8 parts, 3 ~ 5 parts, water.Described swelling scholar and additive is all levigate reaches more than 200 orders to granularity; Additive is one or more in charcoal, white carbon black, flue dust carbon dust; Properties-correcting agent is one or more in discarded animal-plant oil, plant asphalt.
A preparation method for bentonite base granular compound fertilizer anti-hard caking agent, clicks step and carries out:
The first step, raw material pulverizing is sieved: pulverized by desired raw material and sieve out granularity and be less than each raw material of 200 object.
Second step, proportioning raw materials: be by mass percentage: wilkinite 60 ~ 80 parts, additive 10 ~ 30 parts, properties-correcting agent 4 ~ 8 parts, 3 ~ 5 parts, water.
3rd step, batch mixing stirs: by the wilkinite of said ratio, additive, properties-correcting agent and water, carry out stirring and make it fully mix, obtain pre-granulating raw material with stirrer.
4th step, granulation is dried: add in extruding granulator by the above-mentioned raw material that mixes, extruding pelletization, filter out the particle that particle diameter is 2 ~ 4mm, dries, obtain bentonite base granular compound fertilizer anti-hard caking agent at 80 DEG C.
The present invention with natural calcium base bentonite for raw material, a kind of bentonite base granular compound fertilizer anti-hard caking agent prepared by outer doping and properties-correcting agent, both the shortcoming that traditional inert powder class anti-hard caking agent addition is large, easy dusting, the anti-caking cycle is short had been overcome, turn avoid surfactant type anti-hard caking agent cost high, the problems such as environmental pollution.Meanwhile, the present invention requires that in preparation process equipment is simple, and easy and simple to handle, economic worth is high, easily realizes scale operation, and containing the trace element favourable with volume increase to plant-growth in additive charcoal.Therefore, the present invention has very large application prospect in the anti-caking field of chemical fertilizer.
Embodiment
Embodiment one: carry out according to the following steps:
The first step, raw material pulverizing is sieved: pulverized by desired raw material and sieve out granularity and be less than each raw material of 200 object.
Second step, proportioning raw materials: be in mass ratio: wilkinite 70kg, charcoal 20kg, waste animal and vegetable oil 6kg, water 4kg.
3rd step, batch mixing stirs: by the wilkinite of said ratio, charcoal, waste animal and vegetable oil and water, carry out stirring and make it fully mix, obtain pre-granulating raw material with stirrer.
4th step, granulation is dried: add in extruding granulator by the above-mentioned raw material that mixes, extruding pelletization, filter out the particle that particle diameter is 2 ~ 4mm, dries, obtain bentonite base granular compound fertilizer anti-hard caking agent at 80 DEG C.
This kind of particle anti-hard caking agent, by mass percentage for 5 parts of additions of composite fertilizer mix, namely can reach desirable preventing blocking effect.
Embodiment two: carry out according to the following steps:
The first step, raw material pulverizing is sieved: pulverized by desired raw material and sieve out granularity and be less than each raw material of 200 object.
Second step, proportioning raw materials: be in mass ratio: wilkinite 74kg, charcoal 18kg, waste animal and vegetable oil 5kg, water 3kg.
3rd step, batch mixing stirs: by the wilkinite of said ratio, charcoal, waste animal and vegetable oil and water, carry out stirring and make it fully mix, obtain pre-granulating raw material with stirrer.
4th step, granulation is dried: add in extruding granulator by the above-mentioned raw material that mixes, extruding pelletization, filter out the particle that particle diameter is 2 ~ 4mm, dries, obtain bentonite base granular compound fertilizer anti-hard caking agent at 80 DEG C.
This kind of particle anti-hard caking agent, by mass percentage for 5 parts of additions of composite fertilizer mix, namely can reach desirable preventing blocking effect.
Embodiment three: carry out according to the following steps:
The first step, raw material pulverizing is sieved: pulverized by desired raw material and sieve out granularity and be less than each raw material of 200 object.
Second step, proportioning raw materials: be in mass ratio: wilkinite 65kg, charcoal 25kg, waste animal and vegetable oil 6kg, water 4kg.
3rd step, batch mixing stirs: by the wilkinite of said ratio, charcoal, waste animal and vegetable oil and water, carry out stirring and make it fully mix, obtain pre-granulating raw material with stirrer.
4th step, granulation is dried: add in extruding granulator by the above-mentioned raw material that mixes, extruding pelletization, filter out the particle that particle diameter is 2 ~ 4mm, dries, obtain bentonite base granular compound fertilizer anti-hard caking agent at 80 DEG C.This kind of particle anti-hard caking agent, by mass percentage for 5 parts of additions of composite fertilizer mix, namely can reach desirable preventing blocking effect.
More than in conjunction with embodiment and preferred embodiment thereof to invention has been detailed description, but these descriptions do not form limitation of the scope of the invention.Be to be understood that; when not departing from the scope of the invention and spirit; can carry out multiple modification, improvement and replacement to technical scheme of the present invention and embodiment thereof, these modifications, improvement and replacement all should fall in the protection domain of appended claims.
Claims (7)
1. a bentonite base granular compound fertilizer anti-hard caking agent, comprises wilkinite, additive, properties-correcting agent and water.It is characterized in that comprising the steps:
(1) wilkinite and additive pulverized and sieve out granularity and be less than each raw material of 200 object;
(2) will be by weight percentage: wilkinite 60 ~ 80 parts, additive 10 ~ 30 parts, properties-correcting agent 4 ~ 8 parts, 3 ~ 5 parts, water.Carrying out stirring with stirrer makes it fully mix, and obtains pre-granulating raw material;
(3) add in extruding granulator by pre-granulating raw material, extruding pelletization, screening is dried, and obtains bentonite base granular compound fertilizer anti-hard caking agent.
2. a kind of bentonite base granular compound fertilizer anti-hard caking agent according to claim 1, is characterized in that: described additive is one or more in charcoal, white carbon black, flue dust carbon dust.
3. a kind of bentonite base granular compound fertilizer anti-hard caking agent according to claim 1, is characterized in that: described wilkinite and additive are carried out comminution pretreatment, crosses 200 mesh sieves.
4. a kind of bentonite base granular compound fertilizer anti-hard caking agent according to claim 1, is characterized in that: described properties-correcting agent is one or more in animal-plant oil, plant asphalt.
5. a kind of bentonite base phosphate fertilizer anti-hard caking agent according to claim 1, is characterized in that: after extruding pelletization, grain diameter is 2 ~ 4mm.
6. a kind of bentonite base phosphate fertilizer anti-hard caking agent according to claim 1, is characterized in that: after extruding pelletization, particle is at 80 DEG C of dry 8h.
7. a kind of bentonite base phosphate fertilizer anti-hard caking agent according to claim 1, is characterized in that: described anti-hard caking agent consumption is that composite fertilizer per ton adds 50kg anti-hard caking agent, is mixed evenly.
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| CN201310295822.2A CN104291917A (en) | 2013-07-16 | 2013-07-16 | Bentonite-based granular composite fertilizer anti-caking agent and preparation method thereof |
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| CN201310295822.2A CN104291917A (en) | 2013-07-16 | 2013-07-16 | Bentonite-based granular composite fertilizer anti-caking agent and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103749544A (en) * | 2013-12-31 | 2014-04-30 | 上海孚祥生物科技有限公司 | Biomass charcoal-based plant protection agent and preparation method thereof |
| CN105036922A (en) * | 2015-07-23 | 2015-11-11 | 苏州丰倍生物科技有限公司 | Chemical fertilizer powdery anti-blocking agent prepared from spent bleaching clay and preparation method of chemical fertilizer powdery anti-blocking agent |
| CN105565974A (en) * | 2015-12-16 | 2016-05-11 | 湖北富邦科技股份有限公司 | Environment-friendly efficient multifunctional fertilizer wrapping agent as well as preparation method and application |
| CN105565991A (en) * | 2016-01-21 | 2016-05-11 | 广西大学 | Anti-blocking agent for fertilizer |
| CN110999755A (en) * | 2020-01-13 | 2020-04-14 | 咸阳职业技术学院 | Strawberry organic soilless culture composite substrate |
| CN114773121A (en) * | 2022-05-25 | 2022-07-22 | 云南天腾化工有限公司 | Anti-caking agent for nitro compound fertilizer and preparation method and application thereof |
| CN114804962A (en) * | 2022-04-07 | 2022-07-29 | 云南天腾化工有限公司 | Novel anti-caking agent for compound fertilizer and preparation method and application thereof |
| CN117645515A (en) * | 2023-12-07 | 2024-03-05 | 湖北兆丰矿业有限公司 | Bentonite additive for preventing compound fertilizer from caking |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103749544A (en) * | 2013-12-31 | 2014-04-30 | 上海孚祥生物科技有限公司 | Biomass charcoal-based plant protection agent and preparation method thereof |
| CN103749544B (en) * | 2013-12-31 | 2018-02-13 | 上海孚祥生态环保科技股份有限公司 | A kind of biomass carbon base plant protectant and preparation method thereof |
| CN105036922A (en) * | 2015-07-23 | 2015-11-11 | 苏州丰倍生物科技有限公司 | Chemical fertilizer powdery anti-blocking agent prepared from spent bleaching clay and preparation method of chemical fertilizer powdery anti-blocking agent |
| CN105565974A (en) * | 2015-12-16 | 2016-05-11 | 湖北富邦科技股份有限公司 | Environment-friendly efficient multifunctional fertilizer wrapping agent as well as preparation method and application |
| CN105565991A (en) * | 2016-01-21 | 2016-05-11 | 广西大学 | Anti-blocking agent for fertilizer |
| CN110999755A (en) * | 2020-01-13 | 2020-04-14 | 咸阳职业技术学院 | Strawberry organic soilless culture composite substrate |
| CN114804962A (en) * | 2022-04-07 | 2022-07-29 | 云南天腾化工有限公司 | Novel anti-caking agent for compound fertilizer and preparation method and application thereof |
| CN114773121A (en) * | 2022-05-25 | 2022-07-22 | 云南天腾化工有限公司 | Anti-caking agent for nitro compound fertilizer and preparation method and application thereof |
| CN117645515A (en) * | 2023-12-07 | 2024-03-05 | 湖北兆丰矿业有限公司 | Bentonite additive for preventing compound fertilizer from caking |
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