CN103804089B - A kind of agricultural composite fertilizer anti-hard caking agent and preparation method thereof - Google Patents
A kind of agricultural composite fertilizer anti-hard caking agent and preparation method thereof Download PDFInfo
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- CN103804089B CN103804089B CN201410054441.XA CN201410054441A CN103804089B CN 103804089 B CN103804089 B CN 103804089B CN 201410054441 A CN201410054441 A CN 201410054441A CN 103804089 B CN103804089 B CN 103804089B
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Abstract
A kind of agricultural composite fertilizer anti-hard caking agent, the raw material composition of this anti-hard caking agent and weight part ratio thereof are: biomass ash 80 96, properties-correcting agent 2 10, crystalline controlling agent 2 10, and properties-correcting agent is at least one in hydrogenated tallow amine, sodium soap, phosphoric acid ester, paraffin, crystalline controlling agent is at least one in Sodium dodecylbenzene sulfonate, sodium lauryl sulphate; During preparation, first biomass ash, properties-correcting agent are added in screw extrusion press in required ratio and carry out modification to form modification material, then modification material, crystalline controlling agent are poured in cooling cylinder simultaneously, and in the process of modification material cooling, modification material is mixed with crystalline controlling agent.The present invention not only increases the preventing blocking effect of anti-hard caking agent, and reduces production cost.
Description
Technical field
The invention belongs to chemical industry chemical fertilizer auxiliary agent field, relate to a kind of agricultural composite fertilizer anti-hard caking agent and preparation method thereof, be specifically applicable to reduce production cost, strengthen preventing blocking effect.
Background technology
In the storage process of composite fertilizer, because composite fertilizer absorbs between moisture content and compound fertilizer granules and the migration of water of granule interior, composite fertilizer is chunking and powdering very easily.Along with market competition, market demands composite fertilizer can not lump and efflorescence, therefore generally adopts anti-hard caking agent to prevent the caking of composite fertilizer.
Pulvis anti-hard caking agent generally adopts the inert mineral such as talcum powder, zeolite powder powder, have the low feature easy to use of cost, but these inert powders are Nonrenewable resources, and color is commonly canescence, is not suitable for composite bio-fertilizer and the compoiste fertilizer of black.
Chinese patent: Authorization Notice No. is CN101747115B, authorized announcement date is that the patent of invention on December 19th, 2012 discloses a kind of natural degradable compound fertilizer anticaking agent and manufacture method thereof, this natural degradable compound fertilizer anticaking agent by rice hulls 80% ?90%, additive 10% ?20% to form, additive be C4 ?the stearic acid of C30, C4 ?the stearate of C30, C4 ?the alcohol of C30 or paraffin, manufacture method: raw material is fed grinding machine carry out being crushed to 500 ?2500 orders, again the raw material after pulverizing is fed in modifying machine temperature be 10 ?150 DEG C carry out 3 ?the modification of 10 minutes obtain natural degradable compound fertilizer anticaking agent.Although the invention provides a kind of pure natural environment protection, be convenient to farm crop and absorb, strengthen fertilizer efficiency, soil protection, impel the natural degradable compound fertilizer anticaking agent in organism also field, still have following defect:
1, this invention selects rice hulls as raw material, in preparation process, need rice hulls to be crushed to 500 ?2500 orders, therefore need to use disintegrating apparatus, production cost is higher;
2, this invention adopts the eddy current type powder surface modifier of continous way or heated at high speed mixing and kneading machine as modifying machine, and the former facility investment is higher, and the latter is that batch production, efficiency are low.
Summary of the invention
The object of the invention is to overcome the problem that the production cost that exists in prior art is higher, provide a kind of can the agricultural composite fertilizer anti-hard caking agent significantly reducing production cost and preparation method thereof.
For realizing above object, the invention provides following technical scheme:
A kind of agricultural composite fertilizer anti-hard caking agent, the raw material composition of this anti-hard caking agent and weight part ratio thereof are: biomass ash 80 ?96, properties-correcting agent 2 ?10, wherein, described properties-correcting agent is at least one in hydrogenated tallow amine, sodium soap, phosphoric acid ester, paraffin.
Described biomass ash is the biomass ash of biomass material for producing after biomass electric power plant combustion power generation.
The raw material composition of described anti-hard caking agent also comprises crystalline controlling agent, the mass ratio of described crystalline controlling agent and biomass ash be 2 ?10: 80 ?96.
Described crystalline controlling agent is at least one in Sodium dodecylbenzene sulfonate, sodium lauryl sulphate.
A preparation method for above-mentioned agricultural composite fertilizer anti-hard caking agent, this preparation method comprises the following steps successively:
Step one: biomass ash, properties-correcting agent are added in screw extrusion press in required ratio and carry out modification to form modification material, wherein, described modification time is 3 ?6min, and modification temperature is 90 ?95 DEG C, and modifier pressure is 0.3 ?0.6MPa;
Step 2: poured in cooling cylinder by modification material and be cooled to room temperature, now, can complete the preparation of agricultural composite fertilizer anti-hard caking agent.
The raw material composition of described anti-hard caking agent also comprises crystalline controlling agent, the mass ratio of described crystalline controlling agent and biomass ash be 2 ?10: 80 ?96;
Described step 2 also comprises operation crystalline controlling agent being added and mix with modification material in cooling cylinder.
Describedly crystalline controlling agent is added the operation mixed with modification material in cooling cylinder refer to: first while pouring modification material into cooling cylinder, add crystalline controlling agent, then in the process of modification material cooling, modification material is mixed with crystalline controlling agent.
Compared with prior art, beneficial effect of the present invention is:
1, the raw material composition of a kind of agricultural composite fertilizer anti-hard caking agent of the present invention and weight part ratio thereof are biomass ash 80 ?96, properties-correcting agent 2 ?10, and properties-correcting agent is hydrogenated tallow amine, sodium soap, phosphoric acid ester, at least one in paraffin, on the one hand, biomass ash is as the raw material of this anti-hard caking agent, its fineness reaches more than 1000 orders, can directly use, without the need to pulverizing, and biomass ash is the resultant product of biomass after the processes such as burning, it is with low cost, on the other hand, because the binding ability of biomass ash and properties-correcting agent is stronger, therefore the properties-correcting agent needed for modification is less, its modification cost is lower.Therefore, production cost of the present invention is lower.
2, in a kind of agricultural composite fertilizer anti-hard caking agent of the present invention, biomass ash is the biomass ash of biomass material for producing after biomass electric power plant combustion power generation, not only cost is lower for such biomass ash, steady sources, and provide an effective way for the fixed-end forces of biomass electric power plant, can also value-added content of product be improved simultaneously.Therefore, the present invention not only provides an effective way for the fixed-end forces of biomass electric power plant, and improves value-added content of product.
3, the raw material of a kind of agricultural composite fertilizer anti-hard caking agent of the present invention forms the Sodium dodecylbenzene sulfonate also comprised as crystalline controlling agent, sodium lauryl sulphate, Sodium dodecylbenzene sulfonate, sodium lauryl sulphate has stronger wetting ability and hydrophobicity simultaneously, join the free-water and migration moisture content that in anti-hard caking agent, not only can absorb chemical fertilizer granule surface, recrystallization phenomenon between chemical fertilizer granule is greatly reduced, and can prevent under the situation of recrystallization, forming more firmly recrystallizer between chemical fertilizer granule, thus strengthen the preventing blocking effect of anti-hard caking agent further.Therefore, the present invention effectively improves the preventing blocking effect of anti-hard caking agent.
4, in the preparation method of a kind of agricultural composite fertilizer anti-hard caking agent of the present invention step one adopt normal spiral extrusion machine carry out 3 ?the modification of 6min, its modification time is short, cost is low, and can continuous seepage, efficiency is high, step 2 comprises and first while pouring modification material into cooling cylinder, adds crystalline controlling agent, then in the process of modification material cooling, modification material is mixed with crystalline controlling agent, this operation completes the cooling of modification material and the married operation with crystalline controlling agent thereof simultaneously, Processes and apparatus is simple, and the anti-caking effect of anti-hard caking agent can not be affected.Therefore, invention not only simplifies production technique, and reduce cost.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
A kind of agricultural composite fertilizer anti-hard caking agent, the raw material composition of this anti-hard caking agent and weight part ratio thereof are: biomass ash 80 ?96, properties-correcting agent 2 ?10, wherein, described properties-correcting agent is at least one in hydrogenated tallow amine, sodium soap, phosphoric acid ester, paraffin.
Described biomass ash is the biomass ash of biomass material for producing after biomass electric power plant combustion power generation.
The raw material composition of described anti-hard caking agent also comprises crystalline controlling agent, the mass ratio of described crystalline controlling agent and biomass ash be 2 ?10: 80 ?96.
Described crystalline controlling agent is at least one in Sodium dodecylbenzene sulfonate, sodium lauryl sulphate.
A kind of agricultural composite fertilizer of the present invention anti-hard caking agent raw material composition and Action Specification as follows:
The present invention is using biomass ash, properties-correcting agent, crystalline controlling agent as raw material, and their mass ratio is controlled 80 ?96: 2 ?10: 2 ?10, while effective production control cost, significantly improve the preventing blocking effect of anti-hard caking agent, and the fertilizer efficiency of composite fertilizer can not be affected; Meanwhile, this anti-hard caking agent is black powder, is specially adapted to compoiste fertilizer and composite bio-fertilizer, and make composite fertilizer surface more smooth, color and luster is brighter.
Biomass ash: biomass ash is biomass remaining materials after the processes such as burning, on the one hand, it has the characteristic of inert powder, good anti-caking effect can be played through modified adding in composite fertilizer, simultaneously, the silicate content of biomass ash be 40% ?80%, potassium salts content be 5% ?20%, and also containing manganese in ash, magnesium, zinc, the trace element that boron etc. are useful to farm crop, effectively can increase fertilizer efficiency, on the other hand, the present invention utilizes biomass ash to prepare anti-hard caking agent, an effective way can be provided for the process of biomass ash, value-added content of product can be improved again, especially for the biomass ash produced after biomass electric power plant combustion power generation, if process it not in time, environmental issue can be caused, in addition, biomass ash is renewable resources, belong to environmentally friendly machine, to farmland, crop can not pollute and poison.
Properties-correcting agent: in the present invention, properties-correcting agent is selected from hydrogenated tallow amine, sodium soap, phosphoric acid ester, at least one in paraffin, belong to hydrophobic surfactant, its one end is polar group, the other end is the hydrophobic grouping of larger molecular weight, at certain temperature and pressure, the polar group of properties-correcting agent is combined by the hydroxyl on hydrogen bond and biomass ash surface and polar group, thus effectively reduce hydroxyl and the polar group of biomass ash particle surface, make modified biomass ash outside surface is distributed with a large amount of hydrophobic groupings, there is strong-hydrophobicity, when modified biomass ash is attached to chemical fertilizer granule surface, effectively can block the migration of water between outside moisture and chemical fertilizer granule, thus reach the object of anti-caking, wherein, with sodium soap, paraffin phase ratio, hydrogenated tallow amine, phosphoric acid ester has stronger polarity, more easily be combined with biomass ash, its modified effect is better.
Crystalline controlling agent: select Sodium dodecylbenzene sulfonate, sodium lauryl sulphate as crystalline controlling agent in the present invention, the cost of these two kinds of crystalline controlling agent is lower, be easy to get, range of application is wider.
A preparation method for above-mentioned agricultural composite fertilizer anti-hard caking agent, this preparation method comprises the following steps successively:
Step one: biomass ash, properties-correcting agent are added in screw extrusion press in required ratio and carry out modification to form modification material, wherein, described modification time is 3 ?6min, and modification temperature is 90 ?95 DEG C, and modifier pressure is 0.3 ?0.6MPa;
Step 2: poured in cooling cylinder by modification material and be cooled to room temperature, now, can complete the preparation of agricultural composite fertilizer anti-hard caking agent.
The raw material composition of described anti-hard caking agent also comprises crystalline controlling agent, the mass ratio of described crystalline controlling agent and biomass ash be 2 ?10: 80 ?96;
Described step 2 also comprises operation crystalline controlling agent being added and mix with modification material in cooling cylinder.
Describedly crystalline controlling agent is added the operation mixed with modification material in cooling cylinder refer to: first while pouring modification material into cooling cylinder, add crystalline controlling agent, then in the process of modification material cooling, modification material is mixed with crystalline controlling agent.
The principle of the preparation method of a kind of agricultural composite fertilizer anti-hard caking agent of the present invention is described as follows:
First the present invention adopts properties-correcting agent to carry out modification to biomass ash, make it have very strong hydrophobicity, add crystalline controlling agent again and improve preventing blocking effect further, excellent preventing blocking effect makes this anti-hard caking agent be specially adapted to the anti-caking of compoiste fertilizer and composite bio-fertilizer, its reason be compoiste fertilizer, composite bio-fertilizer water content high, belong to the fertilizer variety very easily lumpd.
About step one:
The properties-correcting agent adopted due to the present invention and the binding ability of biomass ash are comparatively strong, and lower to the requirement of modified condition, therefore in this step, modifying machine adopts common screw extrusion press, can not only obtain good modified effect, and is conducive to comparatively lower production cost.
All production cost can be increased owing to extending modification time, raising modification temperature and pressure, shorten the object that modification time, reduction temperature and pressure then cannot reach modification, the preventing blocking effect of anti-hard caking agent of preparation is poor, therefore this step modification time, modification temperature, modifier pressure are controlled respectively 3 ?6min, 90 ?95 DEG C, 0.3 ?0.6MPa.
Embodiment 1:
A kind of agricultural composite fertilizer anti-hard caking agent, the raw material composition of this anti-hard caking agent and weight part ratio thereof are: biomass ash 96, properties-correcting agent 2, crystalline controlling agent 2, wherein, described biomass ash is the biomass ash of biomass material for producing after biomass electric power plant combustion power generation, described properties-correcting agent is the mixture of sodium soap, phosphoric acid ester, paraffin, and described crystalline controlling agent is the mixture of Sodium dodecylbenzene sulfonate, sodium lauryl sulphate.
During preparation, carry out according to following steps successively:
Step one: biomass ash, properties-correcting agent are added in screw extrusion press in required ratio and carry out modification to form modification material, wherein, described modification time is 3 ?6min, and modification temperature is 90 ?95 DEG C, and modifier pressure is 0.3 ?0.6MPa;
Step 2: first modification material, crystalline controlling agent are poured in cooling cylinder simultaneously, then in the process of modification material cooling, modification material is mixed with crystalline controlling agent, material to be modified is cooled to room temperature, can complete the preparation of agricultural composite fertilizer anti-hard caking agent.
Embodiment 2:
Step is with embodiment 1, unlike, the mass ratio of described biomass ash, properties-correcting agent, crystalline controlling agent is 91: 4: 5, and described properties-correcting agent is the mixture of sodium soap, paraffin, and described crystalline controlling agent is the mixture of Sodium dodecylbenzene sulfonate, sodium lauryl sulphate.
Embodiment 3:
Step is with embodiment 1, unlike, the mass ratio of described biomass ash, properties-correcting agent, crystalline controlling agent is 80: 10: 10, and described properties-correcting agent is the mixture of sodium soap, phosphide, paraffin, and described crystalline controlling agent is the mixture of Sodium dodecylbenzene sulfonate, sodium lauryl sulphate.
Embodiment 4:
Step with embodiment 1, unlike, the mass ratio of described biomass ash, properties-correcting agent, crystalline controlling agent is 94: 3: 3, and described properties-correcting agent is the mixture of hydrogenated tallow amine, paraffin, and described crystalline controlling agent is Sodium dodecylbenzene sulfonate.
Embodiment 5:
Step with embodiment 1, unlike, the mass ratio of described biomass ash, properties-correcting agent, crystalline controlling agent is 87: 5: 8, and described properties-correcting agent is the mixture of hydrogenated tallow amine, phosphide, and described crystalline controlling agent is sodium lauryl sulphate.
For detecting the effect of the present embodiment, by adopt the anti-hard caking agent prepared of above-mentioned five embodiments by compoiste fertilizer total mass 0.5% ?0.6% addition to be transported in compound fertilizer coating cylinder by worm conveyor and to wrap up, the compoiste fertilizer obtained stores 6 months without caking phenomenon.
Claims (3)
1. an agricultural composite fertilizer anti-hard caking agent, it is characterized in that raw material composition and the weight part ratio thereof of this anti-hard caking agent are: biomass ash 80 ?96, properties-correcting agent 2 ?10, crystalline controlling agent 2 ?10, wherein, described properties-correcting agent is at least one in hydrogenated tallow amine, sodium soap, phosphoric acid ester, and crystalline controlling agent is at least one in Sodium dodecylbenzene sulfonate, sodium lauryl sulphate.
2. a kind of agricultural composite fertilizer anti-hard caking agent according to claim 1, is characterized in that: described biomass ash is the biomass ash of biomass material for producing after biomass electric power plant combustion power generation.
3. a preparation method for agricultural composite fertilizer anti-hard caking agent according to claim 1, is characterized in that this preparation method comprises the following steps successively:
Step one: biomass ash, properties-correcting agent are added in screw extrusion press in required ratio and carry out modification to form modification material, wherein, described modification time is 3 ?6min, and modification temperature is 90 ?95 DEG C, and modifier pressure is 0.3 ?0.6MPa;
Step 2: first add crystalline controlling agent while pouring modification material into cooling cylinder, then mixed with crystalline controlling agent by modification material in the process of modification material cooling, material to be modified is cooled to the preparation that room temperature can complete agricultural composite fertilizer anti-hard caking agent.
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| CN104355827A (en) * | 2014-11-05 | 2015-02-18 | 青岛锐志农业技术服务有限公司 | Slowly-soluble type bio-organic chemical fertilizer and preparation method thereof |
| CN105175127A (en) * | 2015-09-06 | 2015-12-23 | 赵月 | Fertilizer caking prevention agent, and preparation method and application thereof |
| CN106748061A (en) * | 2016-12-07 | 2017-05-31 | 北京天辰云农场有限公司 | A kind of moistureproof composition of organic fertilizer, anti-blushing agent and fertilizer and application |
| CN108424259A (en) * | 2018-05-16 | 2018-08-21 | 芜湖市创源新材料有限公司 | A kind of preparation method for the slow-release compound fertilizer being coated with anticaking agent |
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Effective date of registration: 20220516 Address after: 436070 No. 26 Runyang Road, Gedian Economic Development Zone, Ezhou City, Hubei Province Patentee after: HUBEI HAILI ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Address before: 436070 No. 26 Runyang Road, Gedian Economic Development Zone, Ezhou City, Hubei Province Patentee before: WUHAN HAILITE TECHNOLOGY Co.,Ltd. |