CN106396987A - Potassium chloride granular fertilizer and production method thereof - Google Patents
Potassium chloride granular fertilizer and production method thereof Download PDFInfo
- Publication number
- CN106396987A CN106396987A CN201611145430.8A CN201611145430A CN106396987A CN 106396987 A CN106396987 A CN 106396987A CN 201611145430 A CN201611145430 A CN 201611145430A CN 106396987 A CN106396987 A CN 106396987A
- Authority
- CN
- China
- Prior art keywords
- potassium chloride
- parts
- fertilizer
- concentration
- particle
- 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
Links
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 title claims abstract description 156
- 239000001103 potassium chloride Substances 0.000 title claims abstract description 78
- 235000011164 potassium chloride Nutrition 0.000 title claims abstract description 78
- 239000003337 fertilizer Substances 0.000 title claims abstract description 67
- 238000004519 manufacturing process Methods 0.000 title abstract description 15
- 239000011248 coating agent Substances 0.000 claims abstract description 34
- 239000011230 binding agent Substances 0.000 claims abstract description 32
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000741 silica gel Substances 0.000 claims abstract description 24
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims description 59
- 239000012530 fluid Substances 0.000 claims description 33
- 229920001296 polysiloxane Polymers 0.000 claims description 33
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 31
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000002360 preparation method Methods 0.000 claims description 15
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 12
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 238000001704 evaporation Methods 0.000 claims description 6
- 239000012634 fragment Substances 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 6
- 230000008020 evaporation Effects 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000008187 granular material Substances 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000005469 granulation Methods 0.000 abstract description 3
- 230000003179 granulation Effects 0.000 abstract description 3
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 3
- 239000011574 phosphorus Substances 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- 239000007931 coated granule Substances 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 19
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 7
- 229940072033 potash Drugs 0.000 description 7
- 229910052700 potassium Inorganic materials 0.000 description 7
- 235000015320 potassium carbonate Nutrition 0.000 description 7
- 235000011181 potassium carbonates Nutrition 0.000 description 7
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 6
- 239000002686 phosphate fertilizer Substances 0.000 description 6
- 239000011591 potassium Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 235000015097 nutrients Nutrition 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- -1 MAP Chemical compound 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 208000019025 Hypokalemia Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- DHKHZGZAXCWQTA-UHFFFAOYSA-N [N].[K] Chemical compound [N].[K] DHKHZGZAXCWQTA-UHFFFAOYSA-N 0.000 description 1
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 235000013877 carbamide Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 208000007645 potassium deficiency Diseases 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D1/00—Fertilisers containing potassium
-
- 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
- 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
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The invention provides a potassium chloride granular fertilizer. The granular fertilizer is produced from, by weight, 80-120 parts of potassium chloride, 1.5-2.5 parts of a binder and 0.5-1 part of a coating agent. A production method of the granular fertilizer, adopting powdery potassium chloride as a raw material, comprises the following steps: adding a binder in proportion in the granulation process, carrying out coating granulation, drying obtained granules, cooling the dried granules, sprinkling a coating agent to carry out coating, and screening the coated granules to obtain the granular fertilizer. The binder and the coating agent are formed by comprehensively utilizing and processing a main raw material waste residue silica gel obtained in the production process of a phosphorus fertilizer, so the product cost is reduced, pollution is eliminated, the performances of the product are good, and the problems of poor appearance quality, low K2O content, low utilization rate and high cost of present methods are solved.
Description
Technical field
The present invention relates to a kind of technical field of fertilizers, particularly a kind of potassium chloride particle fertilizer and preparation method thereof.
Background technology
Potash fertilizer is the base substance data of China's grain-production steady growth, can effective improving product quality, improve
Crops resistance.Potassium chloride, also known as potassium salt, potash fertilizer, is the necessary raw material producing agricultural Chemical Mixed Fertilizer, and the chemical industry being also important is former
Material, potassium chloride physical behavior is good, and hygroscopicity is little, is dissolved in water, reacts in chemically neutral, belongs to physiological acidic fertilizer.But China
Less than 50%, there is great breach in the potash fertilizer degree of self-sufficiency, need dependence on import potash fertilizer to ensure domestic demand, simultaneously national potassium deficiency arable land face
Long-pending account for the 56% of whole cultivated areas, Potassium Fertilizer deficiency become to restrict the principal element that domestic crops increase production further it
One, so the potassium utilization rate problem under-supply to make up potash fertilizer should be improved.
Current Potassium Chloride Product be mainly based on powder product, but powdery potassium chloride exist easy floating dust, poor fluidity,
After long-term storage easily hardened the shortcomings of, and due to being water soluble fertilizer, after fertilising, available nutrient runs off, and utilization rate of fertilizer is only
In 10-40%.Due to viscosity, the poor plasticity of powdery potassium chloride itself, conventional production process is difficult to granulating.Existing production chlorination
The method of k particle fertilizer is mostly：The use of powdery potassium chloride is raw material, produces using to roller extruder grain technique.But warp
The potassium chloride particle of extruder grain technique productions, roundness is poor, surface easily goes out powder, is unfavorable for carrying out the blending of miserable complex fertilizer material and joins
Send, and need the raw material of the higher auxiliary granulating of adding proportion, increased formulation cost, potassium content also declines accordingly.
Additionally, prior art also suffers from the drawback that：During using adding binding agent amylatic method pelletize formation potassium chloride particle,
Starch Hydrolysis need hydrolytic reaction pot, also need to be heated to more than 100 DEG C, and complex process, energy consumption increase, and starch weight ratio need to reach
To more than 10%, the granulating effect of potassium chloride is just obvious, leads to potassium content to decline；Using ferrous sulfate, ardealite, half water stone
When the filling auxiliary granulate material pelletize such as cream forms potassium chloride particle, it is easily caused potassium chloride particle slant acidity, easily causes work
Thing burn seedlings；Add carbamide, ammonium nitrate, MAP, nitrogen potassium, nitrogen phosphorus, N P and K granule are formed using mortar gunite method, production cost is higher than
Simple potassium chloride particle.
Meanwhile, in order to improve the utilization rate of potash fertilizer, also once granule potassium chloride and potassium sulfate were used organic adhesive auxiliary agent and
Additive carries out peplos, also has and adds relevant nutrient by different ratio 1000 with the waste residue controlling steel-refining for primary raw material
DEG C about sintering, melting, slow release fertilizer is obtained after cured cooling, these methods all have the effect extending the slow release phase, but jointly
Weak point be relatively to dilute partly original available nutrient due to after the auxiliary agent required for the addition of, make K2O contains
Amount is less than national standard, simultaneously for being raw material production particle slow release potash fertilizer with powdery potassium chloride fertilizer, has no domestic literature report
Lead.
Content of the invention
Present invention solves the technical problem that：A kind of potassium chloride particle fertilizer that can efficiently produce and its preparation side are provided
Method, with powdery potassium chloride as raw material, is proportionally added into binding agent in granulation process and is coated pelletize, after pelletize through dry,
Cooling is sprayed coating agent again and is carried out peplos, and finally screened is using in production of phosphate fertilizer for finished product, wherein binding agent and coating agent
Waste residue silica gel is primary raw material, carries out comprehensively utilizing processing, had both reduced product cost, eliminate pollution, properties of product again
Well, solve presentation quality in existing method poor, K2O content is low, and utilization rate is low, the problem of high cost.
The purpose of the present invention is realized by following technical proposals.
A kind of potassium chloride particle fertilizer, this potassium chloride particle fertilizer is prepared from by the raw material of following weight parts：
80 120 parts of potassium chloride,
1.5 2.5 parts of binding agent,
0.5 1 parts of coating agent.
Further, described binding agent is the silicone fluid in 40 42 ° of B é for the concentration.
Further, described coating agent is the silicone fluid in 36 39 ° of B é for the concentration.
Further, described silicone fluid is prepared from by the raw material of following weight parts：
1 part of silica gel,
0.33 0.36 parts of potassium carbonate,
0.42 0.45 parts of sodium carbonate.
A kind of preparation method of potassium chloride particle fertilizer, the method includes following five steps：
The preparation of the first step, binding agent and coating agent：By weight portion be 1 part silica gel, 0.33 0.36 parts of potassium carbonate,
After 0.42 0.45 parts of sodium carbonate three's mix homogeneously, add in reverberatory furnace, in 1200 DEG C 1400 DEG C, frit reaction occur,
React after melting time 3 4h and complete, melt quenches into fragment using cold water after flowing out, put in dissolving tank while hot, be dissolved as dense
Spend the mixing silica gel solution for 25 ° of B é, defecator stands 20h, clear liquid obtains 40 42 ° of B é silicone fluids through evaporation and concentration and is
Binding agent used by pelletize；It is 36 39 ° of B é that above-mentioned silicone fluid is diluted with water to concentration, the as peplos used by peplos
Agent；
Second step, weight portion is, after 80 120 parts of powdery potassium chloride crosses 40 mesh sieves, continuously send into pelletize
Machine, and continuously spray the binding agent that the first step is obtained, that is, weight portion is 1.5 2.5 parts, and concentration is the silicone fluid of 40 42 ° of B é,
It is a granulated into potassium chloride spheroidal particle after 5 7min；
3rd step, the moist potassium chloride spheroidal particle that second step is obtained is dried, the inlet temperature of drying machine furnace gas
For 110 120 DEG C, outlet temperature is 65 70 DEG C, and drying time is 18 20min, and to spherical of dried potassium chloride
Grain is cooled to 40 DEG C in cooler；
4th step, choosing weight portion is the coating agent that 0.5 1 parts of first steps obtain, and that is, concentration is the silica gel of 36 39 ° of B é
Liquid, sprays in coating machine and is wrapped in prepared being dried on potassium chloride spheroidal particle of the 3rd step, form film-coated and slow release fertilizer；
5th step, carries out cooling down to film-coated and slow release fertilizer, sieves, measures, packing, checking, and obtains potassium chloride particle fertilizer
Product.
Under the present invention designs with respect to the preparation technology of existing potassium chloride particle fertilizer, formula and application etc. has
State beneficial effect：
1), quality is high, and present invention process condition is simple, and production process easily manipulates, and the potassium chloride particle fertilizer of production is every
Index all meets national GB6549-2011 standard, content >=90% between 2-3mm for the particle diameter, high-class product K2O >=60%, one
Deng product K2O >=57.0%, certified products K2O >=55%, product particle is smooth mellow and full, and granule strength is more than 25N, and particle qualification rate is high,
It is easy to storage transport, can blend with other organic-inorganic granulated fertilizers and use.
2), low cost, because the binding agent used by the present invention and coating agent raw material are Phosphate Fertilizer Industry waste residue silica gel, both saved
About cost of material, eliminates the pollution of Phosphate Fertilizer Industry again, the economic benefit having had and social benefit, can disposably prepare not
With the silicone fluid of concentration, as multiple use, energy efficient.
3), fertilizer efficiency is good, and the potassium chloride particle fertilizer Main Nutrients that the present invention produces are potassium nutrition, and add silicone fluid
Also contain a certain amount of effective silicon nutrient, be available for Crop utilize, the present invention powdery potassium chloride fertilizer has been carried out pelletize and
Peplos, have slow releasing function, and the slow release phase is about 90 days, improve utilization rate of fertilizer 10%-20%.
4), easily promote, binding agent used by the present invention and coating agent raw material can be gathered materials on the spot, the technological process of production is simple, very
Easily promote, for general domestic production phosphorus compound fertilizer factory, can produce on existing prilling granulator and found the factory it is not necessary to reinvest, section
About construction investment, strong applicability, process is simple, energy resource consumption is low.
Specific embodiment
Below by embodiment, potassium chloride particle fertilizer of the present invention and preparation method thereof is described in detail.
A kind of potassium chloride particle fertilizer, this potassium chloride particle fertilizer is prepared from by the raw material of following weight parts：Potassium chloride
80 120 parts, 1.5 2.5 parts of binding agent, 0.5 1 parts of coating agent.Described binding agent is the silica gel in 40 42 ° of B é for the concentration
Liquid.Described coating agent is the silicone fluid in 36 39 ° of B é for the concentration.Described silicone fluid is prepared from by the raw material of following weight parts：
1 part of silica gel, 0.33 0.36 parts of potassium carbonate, 0.42 0.45 parts of sodium carbonate.
A kind of preparation method of potassium chloride particle fertilizer, the method includes following five steps：
The preparation of the first step, binding agent and coating agent：By weight portion be 1 part silica gel, 0.33 0.36 parts of potassium carbonate,
After 0.42 0.45 parts of sodium carbonate three's mix homogeneously, add in reverberatory furnace, in 1200 DEG C 1400 DEG C, frit reaction occur,
React after melting time 3 4h and complete, melt quenches into fragment using cold water after flowing out, put in dissolving tank while hot, be dissolved as dense
Spend the mixing silica gel solution for 25 ° of B é, defecator stands 20h, clear liquid obtains 40 42 ° of B é silicone fluids through evaporation and concentration and is
Binding agent used by pelletize；It is 36 39 ° of B é that above-mentioned silicone fluid is diluted with water to concentration, the as peplos used by peplos
Agent；
Second step, weight portion is, after 80 120 parts of powdery potassium chloride crosses 40 mesh sieves, continuously send into pelletize
Machine, and continuously spray the binding agent that the first step is obtained, that is, weight portion is 1.5 2.5 parts, and concentration is the silicone fluid of 40 42 ° of B é,
It is a granulated into potassium chloride spheroidal particle after 5 7min；
3rd step, the moist potassium chloride spheroidal particle that second step is obtained is dried, the inlet temperature of drying machine furnace gas
For 110 120 DEG C, outlet temperature is 65 70 DEG C, and drying time is 18 20min, and to spherical of dried potassium chloride
Grain is cooled to 40 DEG C in cooler；
4th step, choosing weight portion is the coating agent that 0.5 1 parts of first steps obtain, and that is, concentration is the silica gel of 36 39 ° of B é
Liquid, sprays in coating machine and is wrapped in prepared being dried on potassium chloride spheroidal particle of the 3rd step, form film-coated and slow release fertilizer；
5th step, carries out cooling down to film-coated and slow release fertilizer, sieves, measures, packing, checking, and obtains potassium chloride particle fertilizer
Product.
The potassium chloride particle fertilizer being finally obtained all meets national GB6549-2011 standard through checking, and high-class product K2O >=
60%, Grade A K2O >=57.0%, certified products K2O >=55%, in granule >=90% of 2mm to 3mm, granule strength is big for granularity
In 25N, water content is less than 0.4%, and product slant acidity more can be suitable for different soils and crop, be very beneficial for saline soil
Improvement, improves crop yield.
To further illustrate the present invention below by specific embodiment.
Embodiment 1
The preparation of the first step, binding agent and coating agent：To produce phosphate fertilizer by-product silica gel washed and adjusted PH to
8 so that SiO2>=97%, cross 100 mesh sieves so that fineness reaches 80-100 mesh；By above-mentioned gained weight portion be 1 part silica gel,
0.33 part of potassium carbonate (K2CO3>=96%), 0.42 part of sodium carbonate (Na2CO3>=98%), after three's mix homogeneously, add anti-
Penetrate in stove, in 1200 DEG C, frit reaction occurs, reaction after melting time 3h completes, and melt quenches into fragment using cold water after flowing out, and takes advantage of
Heat puts in dissolving tank, is dissolved as the mixing silica gel solution that concentration is 25 ° of B é, stands 20h in defecator, and clear liquid is dense through evaporating
Contracting obtains 40 ° of B é silicone fluids and is the binding agent used by pelletize；It is 37 ° of B é that above-mentioned silicone fluid is diluted with water to concentration, as
Coating agent used by peplos；
Second step, weight portion is, after 80 parts of powdery potassium chloride crosses 40 mesh sieves, continuously send into comminutor, and even
Continue and spray the binding agent that the first step is obtained, that is, weight portion is 1.5 parts, and concentration is the silicone fluid of 40 ° of B é, is a granulated into chlorine after 5min
Change potassium spheroidal particle；
3rd step, the moist potassium chloride spheroidal particle that second step is obtained is dried, the inlet temperature of drying machine furnace gas
For 110 DEG C, outlet temperature is 65 DEG C, and drying time is 19min, and cold in cooler to dried potassium chloride spheroidal particle
But to 40 DEG C；
4th step, choosing weight portion is the coating agent that 0.5 part of first step obtains, and that is, concentration is the silicone fluid of 37 ° of B é, in bag
Spray in film machine and be wrapped in prepared being dried on potassium chloride spheroidal particle of the 3rd step, form film-coated and slow release fertilizer, using silicone fluid bag
Film one side, in order to fill up the hole concave defect of larger particle surfaces, makes granule smooth mellow and full；On the other hand product is made really to play
Slow releasing function, improves fertilizer efficiency；
5th step, carries out cooling down to film-coated and slow release fertilizer, sieves, measures, packing, checking, and obtains potassium chloride particle fertilizer
Product, wherein K2O content reaches 57.1%.
Embodiment 2
The preparation of the first step, binding agent and coating agent：To produce phosphate fertilizer by-product silica gel washed and adjusted PH to
8 so that SiO2>=97%, cross 100 mesh sieves so that fineness reaches 80-100 mesh；By above-mentioned gained weight portion be 1 part silica gel,
0.35 part of potassium carbonate (K2CO3>=96%), 0.44 part of sodium carbonate (Na2CO3>=98%), after three's mix homogeneously, add anti-
Penetrate in stove, in 1200 DEG C, frit reaction occur, reaction after melting time 3.5h completes, and melt quenches into fragment using cold water after flowing out,
Put in dissolving tank while hot, be dissolved as the mixing silica gel solution that concentration is 25 ° of B é, defecator stands 20h, clear liquid is through evaporation
It is concentrated to give 40.5 ° of B é silicone fluids and be the binding agent used by pelletize；It is 38 ° of B é that above-mentioned silicone fluid is diluted with water to concentration,
It is the coating agent used by peplos；
Second step, weight portion is, after 100 parts of powdery potassium chloride crosses 40 mesh sieves, continuously send into comminutor, and
Continuously spray the binding agent that the first step is obtained, that is, weight portion is 2 parts, and concentration is the silicone fluid of 40.5 ° of B é, pelletize after 6.5min
Become potassium chloride spheroidal particle；
3rd step, the moist potassium chloride spheroidal particle that second step is obtained is dried, the inlet temperature of drying machine furnace gas
For 115 DEG C, outlet temperature is 70 DEG C, and drying time is 20min, and cold in cooler to dried potassium chloride spheroidal particle
But to 40 DEG C；
4th step, choosing weight portion is the coating agent that 0.75 part of first step obtains, and that is, concentration is the silicone fluid of 38 ° of B é,
Spray in coating machine and be wrapped in prepared being dried on potassium chloride spheroidal particle of the 3rd step, form film-coated and slow release fertilizer；
5th step, carries out cooling down to film-coated and slow release fertilizer, sieves, measures, packing, checking, and obtains potassium chloride particle fertilizer
Product, wherein K2O content reaches 60.1%.
Embodiment 3
The preparation of the first step, binding agent and coating agent：To produce phosphate fertilizer by-product silica gel washed and adjusted PH to
8 so that SiO2>=97%, cross 100 mesh sieves so that fineness reaches 80-100 mesh；By above-mentioned gained weight portion be 1 part silica gel,
0.36 part of potassium carbonate (K2CO3>=96%), 0.45 part of sodium carbonate (Na2CO3>=98%), after three's mix homogeneously, add anti-
Penetrate in stove, in 1400 DEG C, frit reaction occurs, reaction after melting time 4h completes, and melt quenches into fragment using cold water after flowing out, and takes advantage of
Heat puts in dissolving tank, is dissolved as the mixing silica gel solution that concentration is 25 ° of B é, stands 20h in defecator, and clear liquid is dense through evaporating
Contracting obtains 42 ° of B é silicone fluids and is the binding agent used by pelletize；It is 39 ° of B é that above-mentioned silicone fluid is diluted with water to concentration, as
Coating agent used by peplos；
Second step, weight portion is, after 120 parts of powdery potassium chloride crosses 40 mesh sieves, continuously send into comminutor, and
Continuously spray the binding agent that the first step is obtained, that is, weight portion is 2.5 parts, and concentration is the silicone fluid of 42 ° of B é, is a granulated into after 7min
Potassium chloride spheroidal particle；
3rd step, the moist potassium chloride spheroidal particle that second step is obtained is dried, the inlet temperature of drying machine furnace gas
For 120 DEG C, outlet temperature is 70 DEG C, and drying time is 20min, and cold in cooler to dried potassium chloride spheroidal particle
But to 40 DEG C；
4th step, choosing weight portion is the coating agent that 1 part of first step obtains, and that is, concentration is the silicone fluid of 39 ° of B é, in peplos
Spray in machine and be wrapped in prepared being dried on potassium chloride spheroidal particle of the 3rd step, form film-coated and slow release fertilizer；
5th step, carries out cooling down to film-coated and slow release fertilizer, sieves, measures, packing, checking, and obtains potassium chloride particle fertilizer
Product, wherein K2O content reaches 55.3%.
Claims (5)
1. a kind of potassium chloride particle fertilizer is it is characterised in that this potassium chloride particle fertilizer is by the raw material preparation of following weight parts
Become：
80 120 parts of potassium chloride,
1.5 2.5 parts of binding agent,
0.5 1 parts of coating agent.
2. potassium chloride particle fertilizer according to claim 1 is it is characterised in that described binding agent is concentration in 40 42 ° of B
The silicone fluid of é.
3. potassium chloride particle fertilizer according to claim 1 is it is characterised in that described coating agent is concentration in 36 39 ° of B
The silicone fluid of é.
4. the potassium chloride particle fertilizer according to Claims 2 or 3 is it is characterised in that described silicone fluid is by following weight parts
Raw material be prepared from：
1 part of silica gel,
0.33 0.36 parts of potassium carbonate,
0.42 0.45 parts of sodium carbonate.
5. a kind of preparation method based on the potassium chloride particle fertilizer described in claim 1 is it is characterised in that under the method includes
State five steps：
The preparation of the first step, binding agent and coating agent：By weight portion be 1 part silica gel, 0.33 0.36 parts of potassium carbonate,
After 0.42 0.45 parts of sodium carbonate three's mix homogeneously, add in reverberatory furnace, in 1200 DEG C 1400 DEG C, frit reaction occur,
React after melting time 3 4h and complete, melt quenches into fragment using cold water after flowing out, put in dissolving tank while hot, be dissolved as dense
Spend the mixing silica gel solution for 25 ° of B é, defecator stands 20h, clear liquid obtains 40 42 ° of B é silicone fluids through evaporation and concentration and is
Binding agent used by pelletize；It is 36 39 ° of B é that above-mentioned silicone fluid is diluted with water to concentration, the as peplos used by peplos
Agent；
Second step, weight portion is, after 80 120 parts of powdery potassium chloride crosses 40 mesh sieves, continuously send into comminutor, and
Continuously spray the binding agent that the first step is obtained, that is, weight portion is 1.5 2.5 parts, and concentration is the silicone fluid of 40 42 ° of B é, through 5
It is a granulated into potassium chloride spheroidal particle after 7min；
3rd step, the moist potassium chloride spheroidal particle that second step is obtained is dried, and the inlet temperature of drying machine furnace gas is
110 120 DEG C, outlet temperature is 65 70 DEG C, and drying time is 18 20min, and to dried potassium chloride spheroidal particle
It is cooled to 40 DEG C in cooler；
4th step, choosing weight portion is the coating agent that 0.5 1 parts of first steps obtain, and that is, concentration is the silicone fluid of 36 39 ° of B é,
Coating machine sprays and is wrapped in prepared being dried on potassium chloride spheroidal particle of the 3rd step, form film-coated and slow release fertilizer；
5th step, carries out cooling down to film-coated and slow release fertilizer, sieves, measures, packing, checking, and obtains potassium chloride particle fertilizer finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611145430.8A CN106396987A (en) | 2016-12-13 | 2016-12-13 | Potassium chloride granular fertilizer and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611145430.8A CN106396987A (en) | 2016-12-13 | 2016-12-13 | Potassium chloride granular fertilizer and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106396987A true CN106396987A (en) | 2017-02-15 |
Family
ID=58084136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611145430.8A Pending CN106396987A (en) | 2016-12-13 | 2016-12-13 | Potassium chloride granular fertilizer and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106396987A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107986887A (en) * | 2018-01-15 | 2018-05-04 | 中化农业（临沂）研发中心有限公司 | A kind of circle high intensity granule potassium chloride fertilizer and its manufacture method |
| CN112898084A (en) * | 2019-11-19 | 2021-06-04 | 湖北省农业科学院植保土肥研究所 | Controlled-release blended fertilizer for rice shrimp mode and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103772010A (en) * | 2013-12-30 | 2014-05-07 | 北京仁创三会农业科技有限公司 | Enveloped controlled-release fertilizer taking silica sand as membrane and preparation method of fertilizer |
| CN104341228A (en) * | 2013-07-31 | 2015-02-11 | 深圳市芭田生态工程股份有限公司 | A potassium chloride particle fertilizer and a preparing method thereof |
-
2016
- 2016-12-13 CN CN201611145430.8A patent/CN106396987A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104341228A (en) * | 2013-07-31 | 2015-02-11 | 深圳市芭田生态工程股份有限公司 | A potassium chloride particle fertilizer and a preparing method thereof |
| CN103772010A (en) * | 2013-12-30 | 2014-05-07 | 北京仁创三会农业科技有限公司 | Enveloped controlled-release fertilizer taking silica sand as membrane and preparation method of fertilizer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107986887A (en) * | 2018-01-15 | 2018-05-04 | 中化农业（临沂）研发中心有限公司 | A kind of circle high intensity granule potassium chloride fertilizer and its manufacture method |
| CN112898084A (en) * | 2019-11-19 | 2021-06-04 | 湖北省农业科学院植保土肥研究所 | Controlled-release blended fertilizer for rice shrimp mode and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104529674B (en) | A kind of humic acid special fertilizer for sweet potato and preparation method thereof | |
| CN101362662A (en) | Coating sustained-released disposable fertilizer | |
| CN104496650A (en) | Total-nutrient water-retaining degradable mechanically-applied coated fertilizer | |
| CN103664369B (en) | A kind of synergy loss controlling fertilizer and preparation method thereof | |
| CN103102213B (en) | Preparation method of special long-term slow-release compound fertilizer for wheat | |
| CN103435425B (en) | Hierarchical slow release multielement fertilizer and manufacturing process thereof | |
| CN102815991B (en) | Fertilizer special for peanuts | |
| CN102826882A (en) | Carbamide chelated controlled release fertilizer and its preparation method | |
| CN105237295A (en) | Special humic acid chelated slow-release fertilizer for wheat and preparation method thereof | |
| CN103113153B (en) | The preparation method of the sustained-release long-acting compound fertilizer that tobacco is special | |
| CN105152791A (en) | Special humic acid chelated slow-release fertilizer for cotton and preparation method thereof | |
| CN105384550B (en) | A kind of organic-inorganic complex fertilizer and preparation method thereof of long-acting slow-release P | |
| CN103058751B (en) | Preparation method for special slow-release long-acting compound fertilizer for corn | |
| CN103058753B (en) | Slow release compound fertilizer applicable to plantation of soybeans | |
| CN102816019B (en) | Fertilizer special for canola | |
| CN106518217A (en) | Clear liquid type liquid ternary compound fertilizer and preparation method thereof | |
| CN102515924A (en) | Preparation method of chlorine-free compound fertilizer | |
| CN103058760B (en) | Slow release compound fertilizer applicable to plantation of tobacco | |
| CN103058754B (en) | Slow-release compound fertilizer applicable to plantation of corn | |
| CN103058762B (en) | Slow-release compound fertilizer suitable for fruit tree planting | |
| CN104529564A (en) | Quick-acting granular magnesium sulfate fertilizer and preparation method thereof | |
| CN106396987A (en) | Potassium chloride granular fertilizer and production method thereof | |
| CN104030803A (en) | Special controlled-release fertilizer for winter wheat and production method of fertilizer | |
| CN1297871A (en) | Chemical fertilizer capable of absorbing and maintaining water and its production process | |
| CN103755483B (en) | A kind of Special controlled-release fertilizer for summer maize and production method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170215 |
|
| RJ01 | Rejection of invention patent application after publication |