CN114410312A - Soil acid regulating agent and preparation process thereof - Google Patents
Soil acid regulating agent and preparation process thereof Download PDFInfo
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- CN114410312A CN114410312A CN202210236383.7A CN202210236383A CN114410312A CN 114410312 A CN114410312 A CN 114410312A CN 202210236383 A CN202210236383 A CN 202210236383A CN 114410312 A CN114410312 A CN 114410312A
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- 239000002689 soil Substances 0.000 title claims abstract description 109
- 239000002253 acid Substances 0.000 title claims abstract description 91
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 69
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 238000003756 stirring Methods 0.000 claims abstract description 208
- 238000002156 mixing Methods 0.000 claims abstract description 122
- 239000000843 powder Substances 0.000 claims abstract description 68
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims abstract description 64
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims abstract description 64
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000004202 carbamide Substances 0.000 claims abstract description 47
- 229910000514 dolomite Inorganic materials 0.000 claims abstract description 44
- 239000010459 dolomite Substances 0.000 claims abstract description 44
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 32
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims abstract description 32
- 235000011130 ammonium sulphate Nutrition 0.000 claims abstract description 32
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims abstract description 32
- 235000019341 magnesium sulphate Nutrition 0.000 claims abstract description 32
- 239000011591 potassium Substances 0.000 claims abstract description 32
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 32
- 235000005074 zinc chloride Nutrition 0.000 claims abstract description 32
- 239000011592 zinc chloride Substances 0.000 claims abstract description 32
- 229910021538 borax Inorganic materials 0.000 claims abstract description 26
- 239000004328 sodium tetraborate Substances 0.000 claims abstract description 26
- 235000010339 sodium tetraborate Nutrition 0.000 claims abstract description 26
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims abstract description 26
- 229960001763 zinc sulfate Drugs 0.000 claims abstract description 26
- 229910000368 zinc sulfate Inorganic materials 0.000 claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 19
- 239000002131 composite material Substances 0.000 claims abstract description 18
- 238000005507 spraying Methods 0.000 claims abstract description 17
- 238000005469 granulation Methods 0.000 claims abstract description 16
- 230000003179 granulation Effects 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims description 89
- 239000000463 material Substances 0.000 claims description 84
- 238000007599 discharging Methods 0.000 claims description 78
- 238000010438 heat treatment Methods 0.000 claims description 74
- 239000008187 granular material Substances 0.000 claims description 33
- 239000002002 slurry Substances 0.000 claims description 25
- 239000003337 fertilizer Substances 0.000 claims description 21
- 239000011259 mixed solution Substances 0.000 claims description 21
- 238000007790 scraping Methods 0.000 claims description 20
- 239000003638 chemical reducing agent Substances 0.000 claims description 17
- 238000013329 compounding Methods 0.000 claims description 17
- 238000005259 measurement Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 229910001868 water Inorganic materials 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 11
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 8
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 8
- 241001330002 Bambuseae Species 0.000 claims description 8
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 8
- 239000011425 bamboo Substances 0.000 claims description 8
- 235000013877 carbamide Nutrition 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- IPCXNCATNBAPKW-UHFFFAOYSA-N zinc;hydrate Chemical compound O.[Zn] IPCXNCATNBAPKW-UHFFFAOYSA-N 0.000 claims description 7
- 238000001354 calcination Methods 0.000 claims description 6
- 230000003750 conditioning effect Effects 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 5
- 238000005728 strengthening Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 19
- 241001391944 Commicarpus scandens Species 0.000 abstract description 6
- 230000006872 improvement Effects 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract 1
- 238000009826 distribution Methods 0.000 description 32
- 239000003516 soil conditioner Substances 0.000 description 9
- 235000013339 cereals Nutrition 0.000 description 5
- 241000209094 Oryza Species 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000007306 turnover Effects 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 238000000855 fermentation Methods 0.000 description 3
- 230000004151 fermentation Effects 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 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
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2101/00—Agricultural use
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Soil Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Fertilizers (AREA)
Abstract
The invention provides a soil acid regulating agent, belongs to the technical field of soil improvement, and solves the technical problem that the acid regulating effect of the existing soil acid regulating agent is poor. The composition is prepared from the following raw materials in parts by weight: 10-90 parts of urea, 4.5-5.5 parts of borax, 4.5-5.5 parts of zinc sulfate, 5-60 parts of zinc chloride, 5-30 parts of potassium fulvate, 35-85 parts of calcined dolomite powder obtained in the first step, 0-50 parts of ammonium sulfate and 1-20 parts of magnesium sulfate. The invention provides a preparation process of a soil acid regulating agent, which adopts a composite stirring device to carry out stirring and mixing production, has better spraying granulation effect when preparing the soil acid regulating agent, and is not easy to break after drying particles; the length of production is long; the unit power consumption is low; the prepared soil acid regulating agent has scientific and reasonable raw material matching, obvious soil acid regulating effect and special effect on economic crops.
Description
Technical Field
The invention belongs to the technical field of soil improvement, and relates to a soil acid regulating agent, in particular to a preparation process of the soil acid regulating agent.
Background
Each crop has an optimum range of soil acidity due to the combined effects of the crop's genetic characteristics of growth and soil environment. For example, the rice plant usually adopts dry seedling raising technology, which is favorable for seedling growth when the seedbed soil is acidic, and at present, a considerable part of the soil in the rice area is neutral or alkaline, so that the acid regulation of the seedbed soil which is favorable for acidic soil such as rice becomes a key technology for plant cultivation, for example, the pH value of the soil can be improved, and the quality and yield of the plant can be greatly improved, thereby generating great economic benefit. At present, widely used acid regulating substances are sulfuric acid, sulfur, ferrous sulfate, acetic acid and the like, the acid regulating substances cannot keep stable in the acid regulating effect on soil, the pH value of the soil is unstable, the acid regulating substances need to be repeatedly used for a long time, antagonism can be generated with the soil, soil hardening is caused, organic matters are reduced, the soil fertility is reduced, the overall quality level of seedlings is seriously influenced, and poor growth of crops and reduction of quality and yield are caused. Most of the soil is also lack of medium elements such as calcium, magnesium and the like and organic carbon nutrition of the planting soil, so that the growth of crops is influenced.
However, the raw material collocation of the existing soil acid regulating agent is not scientific and reasonable enough, the soil acid regulating and improving effect of the soil acid regulating agent is poor, the stirring device used in the existing preparation process of the soil acid regulating agent has an independent structure, no linkage effect, short production period and high unit power consumption, the slurry spraying and granulating effect is poor when the soil acid regulating agent is prepared, and the granules are fragile after being dried.
Through retrieval, for example, chinese patent literature discloses a soil conditioner and a preparation method thereof [ application No.: CN 202110371931.2; publication No.: CN113149789A ]. The soil conditioner is prepared by piling soil conditioner materials and leaf surface conditioner residues in a staggered layered manner to form a fermentation pile and performing fermentation. Respectively preparing a soil conditioner material and a leaf surface conditioner, carrying out vacuum filtration on leaf surface conditioner fermentation liquor to obtain leaf surface conditioner residues, stacking the soil conditioner material and the leaf surface conditioner residues layer by layer according to a proportion, and fermenting to obtain a finished product. The prepared soil conditioner can be used as a conditioner for reducing cadmium in rice and can also replace chemical fertilizers to be used as a soil conditioner for base fertilizers, the fertilizer application is reduced, the utilization efficiency of soil is increased, meanwhile, the raw material source of the soil conditioner is environment-friendly, the cost is low, the soil acid regulating and improving effect is poor, the stirring device used in the preparation process is independent in structure, free of linkage effect, short in production period and high in unit power consumption, the slurry spraying and granulating effect is poor when the soil acid regulating agent is prepared, and the granules are fragile after being dried.
Based on the above, the soil acid regulating agent and the preparation process thereof are provided, the raw material collocation is scientific and reasonable, the composite stirring device is adopted for mixed production, the slurry spraying granulation effect is good when the soil acid regulating agent is prepared, and the granules are not easy to break after being dried; the length of production is long; the unit power consumption is low; the soil acid regulating agent has obvious soil acid regulating effect and special effect on economic crops.
Disclosure of Invention
The first purpose of the invention is to provide a preparation process of a soil acid regulator aiming at the problems in the prior art, and the preparation process aims to solve the technical problems that: how to ensure that the raw materials are quickly mixed and stirred, the spraying granulation effect is better when the soil acid regulating agent is prepared, and the production time is short; the unit power consumption is low.
The first invention object of the present invention can be achieved by the following technical solutions:
a preparation process of a soil acid regulator comprises the following steps:
calcining dolomite at the low temperature of 660-760 ℃, cooling and crushing to obtain calcined dolomite powder;
step two, respectively mixing a certain amount of urea, borax, zinc sulfate and water, heating to 50-95 ℃ while stirring, and fully dissolving to obtain a mixed solution;
step three, respectively taking a certain amount of zinc chloride, potassium fulvate, the calcined dolomite powder obtained in the step one, urea, ammonium sulfate and magnesium sulfate, sequentially adding and mixing the zinc chloride, the potassium fulvate, the calcined dolomite powder, the urea, the ammonium sulfate and the magnesium sulfate according to the sequence, and uniformly stirring to obtain a mixture;
step four, adding the mixture obtained in the step three into the mixed solution obtained in the step two to form slurry;
injecting the slurry obtained in the step four into a granulator for spraying granulation, and after moisture in the slurry is vaporized and separated, remaining solid which cannot be gasified forms granular materials;
step six, conveying the granular materials into a dryer for drying to remove moisture, controlling the temperature of the dryer at 280 ℃ and 450 ℃, and then cooling to below 45 ℃;
seventhly, conveying the cooled granular materials into a separation sieve for sieving to obtain soil acid regulating agent fertilizer granules with the grain size of 1.0-4.75 mm;
and step eight, returning and dissolving the soil acid regulating agent fertilizer which does not meet the standard, granulating again, placing the soil acid regulating agent fertilizer which meets the standard at the temperature of 35 ℃ for conditioning, and finally packaging according to different metering standards.
In the second step, the components are as follows in parts by weight: 5-50 parts of urea, 4.5-5.5 parts of borax, 4.5-5.5 parts of zinc sulfate and 35-45 parts of water (the same weight in each part).
As a still further scheme of the invention: in the second step, the components are as follows in parts by weight: 25 parts of urea, 5 parts of borax, 5 parts of zinc sulfate and 30 parts of water (each part is the same in weight).
In the third step, the components are as follows in parts by weight: 5-60 parts of zinc chloride, 5-30 parts of potassium fulvate, 35-85 parts of calcined dolomite powder obtained in the step one, 5-40 parts of urea, 0-50 parts of ammonium sulfate and 1-20 parts of magnesium sulfate (the same weight in each part).
As a still further scheme of the invention: in the third step, the components are as follows in parts by weight: 30 parts of zinc chloride, 20 parts of potassium fulvate, 55 parts of calcined dolomite powder obtained in the step one, 25 parts of urea, 25 parts of ammonium sulfate and 10 parts of magnesium sulfate (the weight of each part is the same).
And the stirring equipment used in the second step to the fourth step is a composite stirring device, the composite stirring device comprises a power mixing mechanism, a heating stirring tank and a powder mixing mechanism which are sequentially arranged from bottom to top, two symmetrical quantitative discharging mechanisms are arranged on the power mixing mechanism, a plurality of reinforcing ribs are arranged between the two quantitative discharging mechanisms and the heating stirring tank, the powder mixing mechanism and the heating stirring tank are respectively connected with the two quantitative discharging mechanisms through discharging pipes and discharging pipes, and differential connecting shafts are arranged between the powder mixing mechanism and the heating stirring tank and between the heating stirring tank and the power mixing mechanism.
The power mixing mechanism comprises a mixing base, a motor, a speed reducer and a discharging assembly are fixed inside the mixing base, the motor is in transmission connection with the speed reducer, a stirring frame is rotated at the middle part of the upper end of the mixing base and is in transmission connection with the speed reducer, an electric stirring frame and a plurality of material scraping frames are arranged on the stirring frame, a mixing barrel is arranged at the upper end of the mixing base, the stirring frame, the material scraping frames and the electric stirring frame are all located inside the mixing barrel, a blanking hole is formed in the mixing base, the discharging assembly is located right below the blanking hole, and a heat-insulating cotton layer is arranged on the outer wall of the mixing barrel;
the discharging assembly comprises a discharging barrel, the discharging barrel is hinged with an overturning rod and an electric push rod, the end part of the electric push rod is hinged with the end part of the overturning rod, a plurality of connecting rods are fixed on the overturning rod, the upper ends of the connecting rods are fixed with overturning blocking plates, and the overturning blocking plates are located right below the discharging hole;
the differential connecting shaft is connected between a rotating shaft of the heating stirring tank and the rotating stirring frame, a plurality of supporting legs which are uniformly distributed circumferentially are fixed at the lower end of the heating stirring tank, the supporting legs are fixed at the upper end of the mixing base, a blow-off pipe is further arranged at the lower end of the heating stirring tank, an electric control valve is connected onto the discharging pipe, and a plurality of first feeding pipes are arranged at the upper end of the heating stirring tank;
the powder mixing mechanism comprises a stirring tank, a plurality of supporting rods which are uniformly distributed circumferentially are arranged at the lower end of the stirring tank, the supporting rods are fixed on a heating stirring tank, a discharge port is formed in the lower end of the stirring tank, the upper end of a discharge pipe is connected to the lower end of the discharge port, an electric control valve is arranged on the discharge pipe, a differential connecting shaft is connected between a rotating shaft of the stirring tank and a rotating shaft of the heating stirring tank, a plurality of scraping plates which are uniformly distributed circumferentially, a material distribution hole disc and a material distribution spiral pipe are sequentially arranged on the rotating shaft of the stirring tank from bottom to top, a material distribution barrel is arranged on the stirring tank, the material distribution spiral pipe is positioned in the material distribution barrel, a second feeding pipe is arranged at the upper end of the material distribution barrel, and a material distribution hopper is arranged on the second feeding pipe;
quantitative drop feed mechanism includes the mounting panel, and the mounting panel is fixed on the compounding section of thick bamboo, and the strengthening rib lower extreme is fixed on the mounting panel, is fixed with quantitative workbin and pneumatic push rod on the mounting panel, and pneumatic push rod's tip and quantitative workbin are connected, and quantitative workbin connects the lower extreme at discharge tube and discharging pipe respectively, and articulated on the mounting panel have the upset connecting rod, and the tip of upset connecting rod articulates at the inner blade wheel of quantitative workbin epaxially, and the discharge end of quantitative workbin is equipped with the pneumatic valve of unloading, and the discharge end of pneumatic valve of unloading passes through pipe connection on the compounding section of thick bamboo.
The second purpose of the invention is to provide a soil acid regulating agent aiming at the problems of the prior art, and the soil acid regulating agent is to solve the technical problems that: how to ensure that the raw materials of the soil acid regulating agent are scientifically and reasonably matched, and the soil acid regulating effect of the soil acid regulating agent is obvious.
The second object of the present invention can be achieved by the following technical solutions:
a soil acid regulator is prepared from the following raw materials in parts by weight: 10-90 parts of urea, 4.5-5.5 parts of borax, 4.5-5.5 parts of zinc sulfate, 5-60 parts of zinc chloride, 5-30 parts of potassium fulvate, 35-85 parts of calcined dolomite powder obtained in the first step, 0-50 parts of ammonium sulfate and 1-20 parts of magnesium sulfate (the same weight in each part).
As a further scheme of the invention: a soil acid regulator is prepared from the following raw materials in parts by weight: 15-85 parts of urea, 4.8-5.2 parts of borax, 4.7-5.1 parts of zinc sulfate, 15-50 parts of zinc chloride, 10-20 parts of potassium fulvate, 55-75 parts of calcined dolomite powder obtained in the first step, 5-45 parts of ammonium sulfate and 5-15 parts of magnesium sulfate (the same weight in each part).
As a still further scheme of the invention: a soil acid regulator is prepared from the following raw materials in parts by weight: 55 parts of urea, 4.9 parts of borax, 4.9 parts of zinc sulfate, 35 parts of zinc chloride, 15 parts of potassium fulvate, 65 parts of calcined dolomite powder obtained in the step one, 30 parts of ammonium sulfate and 12 parts of magnesium sulfate (the same weight in each part).
Compared with the prior art, the soil acid regulating agent and the preparation process thereof have the following advantages:
the raw material collocation of the invention is scientific and reasonable, the composite stirring device is adopted for mixed production, the spraying granulation effect is better when the soil acid regulating agent is prepared, and the granules are not easy to break after being dried; the length of production is long; the unit power consumption is low; the soil acid regulating agent has obvious soil acid regulating effect and special effect on economic crops.
The composite stirring device has compact structure, realizes one power and three different output speeds, and the powder mixing mechanism uniformly discharges materials and quickly stirs the materials; heating agitator tank constant temperature stirring guarantees the temperature stability, and powder mixing mechanism and heating agitator tank and power compounding mechanism and differential connecting axle cooperation, and the rotation stirring of while not equidistance, and the heating agitator tank stirring back short distance is poured into power compounding mechanism by ration drop feed mechanism ration into immediately inside stirring, avoids the mixed solution temperature to scatter and disappear, guarantees the misce bene, and stirring misce bene improves compounding efficiency.
Drawings
FIG. 1 is a flow chart of the process for preparing the soil acidity regulator of the present invention.
FIG. 2 is a formula of the soil acidity regulator of the present invention.
Fig. 3 is a schematic front view of the composite type stirring apparatus of the present invention.
Fig. 4 is a schematic perspective view of the hybrid type stirring apparatus of the present invention.
FIG. 5 is a schematic perspective view of a powder mixing mechanism of the multiple-unit stirring apparatus of the present invention.
Fig. 6 is a schematic perspective view of a heating stirring tank of the hybrid stirring apparatus of the present invention.
FIG. 7 is a schematic top perspective view of a dynamic mixing mechanism of the multiple mixer apparatus of the present invention.
FIG. 8 is a schematic view of the lower side of the power mixing mechanism of the multiple stirring apparatus of the present invention.
FIG. 9 is a schematic perspective view of the quantitative discharging mechanism of the present invention.
In the figure, 1, a powder mixing mechanism; 2. an electrically controlled valve; 3. a discharge pipe; 4. heating the stirring tank; 5. reinforcing ribs; 6. a quantitative discharging mechanism; 7. a power mixing mechanism; 8. a differential connecting shaft; 9. a first feed tube; 10. a second feed tube; 11. a batching hopper; 12. a material separating barrel; 13. a material-separating spiral pipe; 14. a material distributing hole disc; 15. a scraping plate; 16. a discharge port; 17. a support bar; 18. a discharge pipe; 19. a blow-off pipe; 20. supporting legs; 21. a mixing barrel; 22. a stirring frame; 23. a material scraping frame; 24. a blanking hole; 25. a discharge assembly; 26. a mixing base; 27. an electric stirring frame; 28. a motor; 29. a speed reducer; 30. a connecting rod; 31. a turning rod; 32. an electric push rod; 33. turning over the blocking plate; 34. a quantitative material box; 35. a discharge air valve; 36. turning over the connecting rod; 37. and a pneumatic push rod.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Example 1
As shown in figure 1, the preparation process of the soil acidity regulator comprises the following steps:
calcining dolomite at the low temperature of 660-760 ℃, cooling and crushing to obtain calcined dolomite powder;
step two, respectively mixing a certain amount of urea, borax, zinc sulfate and water, heating to 50-95 ℃ while stirring, and fully dissolving to obtain a mixed solution;
step three, respectively taking a certain amount of zinc chloride, potassium fulvate, the calcined dolomite powder obtained in the step one, urea, ammonium sulfate and magnesium sulfate, sequentially adding and mixing the zinc chloride, the potassium fulvate, the calcined dolomite powder, the urea, the ammonium sulfate and the magnesium sulfate according to the sequence, and uniformly stirring to obtain a mixture;
step four, adding the mixture obtained in the step three into the mixed solution obtained in the step two to form slurry;
injecting the slurry obtained in the step four into a granulator for spraying granulation, and after moisture in the slurry is vaporized and separated, remaining solid which cannot be gasified forms granular materials;
step six, conveying the granular materials into a dryer for drying to remove moisture, controlling the temperature of the dryer at 280 ℃ and 450 ℃, and then cooling to below 45 ℃;
seventhly, conveying the cooled granular materials into a separation sieve for sieving to obtain soil acid regulating agent fertilizer granules with the grain size of 1.0-4.75 mm;
and step eight, returning and dissolving the soil acid regulating agent fertilizer which does not meet the standard, granulating again, placing the soil acid regulating agent fertilizer which meets the standard at the temperature of 35 ℃ for conditioning, and finally packaging according to different metering standards.
In the second step, the weight parts of the components are as follows: 25 parts of urea, 5 parts of borax, 5 parts of zinc sulfate and 30 parts of water (each part is the same in weight).
In the third step, the weight parts of the components are as follows: 30 parts of zinc chloride, 20 parts of potassium fulvate, 55 parts of calcined dolomite powder obtained in the step one, 25 parts of urea, 25 parts of ammonium sulfate and 10 parts of magnesium sulfate (the weight of each part is the same).
The stirring equipment used in the second step to the fourth step is the existing stirring device, namely, a plurality of stirring devices are adopted in the second step to the fourth step, and the production mode is a production line type, namely, three mutually independent stirring devices with the same or different specifications are used for stirring, (the stirring devices are a DSHL conical spiral mixer manufactured by Shanghai Deyue powder mechanical Co., Ltd., a stirring mechanism with the application number of CN201820767266.2, a stirrer with the stirring mechanism and the like) are mutually independent and lack linkage, at the moment, the mixed solution in the step two is cooled after being stirred, and then is injected into the step four, in the fourth step, when the mixture formed in the third step is stirred and mixed, the temperature can not be ensured to be between 50 and 95 ℃, the mixing effect is influenced, and the three different stirring devices are used for stirring at the same time, so that the production mode of a production line type is adopted, the process is long, the energy consumption is high, and the production requirement of the soil acid regulating agent is not facilitated.
As shown in figure 2, the soil acidity regulator is prepared from the following raw materials in parts by weight: 50 parts of urea, 5 parts of borax, 5 parts of zinc sulfate, 30 parts of zinc chloride, 15 parts of potassium fulvate, 55 parts of calcined dolomite powder obtained in the step one, 25 parts of ammonium sulfate and 10 parts of magnesium sulfate (the same weight in each part).
Example 2
A preparation process of a soil acid regulator comprises the following steps:
calcining dolomite at the low temperature of 660-760 ℃, cooling and crushing to obtain calcined dolomite powder;
step two, respectively mixing a certain amount of urea, borax, zinc sulfate and water, heating to 50-95 ℃ while stirring, and fully dissolving to obtain a mixed solution;
step three, respectively taking a certain amount of zinc chloride, potassium fulvate, the calcined dolomite powder obtained in the step one, urea, ammonium sulfate and magnesium sulfate, sequentially adding and mixing the zinc chloride, the potassium fulvate, the calcined dolomite powder, the urea, the ammonium sulfate and the magnesium sulfate according to the sequence, and uniformly stirring to obtain a mixture;
step four, adding the mixture obtained in the step three into the mixed solution obtained in the step two to form slurry;
injecting the slurry obtained in the step four into a granulator for spraying granulation, and after moisture in the slurry is vaporized and separated, remaining solid which cannot be gasified forms granular materials;
step six, conveying the granular materials into a dryer for drying to remove moisture, controlling the temperature of the dryer at 280 ℃ and 450 ℃, and then cooling to below 45 ℃;
seventhly, conveying the cooled granular materials into a separation sieve for sieving to obtain soil acid regulating agent fertilizer granules with the grain size of 1.0-4.75 mm;
and step eight, returning and dissolving the soil acid regulating agent fertilizer which does not meet the standard, granulating again, placing the soil acid regulating agent fertilizer which meets the standard at the temperature of 35 ℃ for conditioning, and finally packaging according to different metering standards.
In the second step, the weight parts of the components are as follows: 25 parts of urea, 5 parts of borax, 5 parts of zinc sulfate and 30 parts of water (each part is the same in weight).
In the third step, the weight parts of the components are as follows: 30 parts of zinc chloride, 20 parts of potassium fulvate, 55 parts of calcined dolomite powder obtained in the step one, 25 parts of urea, 25 parts of ammonium sulfate and 10 parts of magnesium sulfate (the weight of each part is the same).
As shown in fig. 3-9, the stirring apparatus used in steps two to four is a composite stirring apparatus, the composite stirring apparatus includes a power mixing mechanism 7, a heating stirring tank 4 and a powder mixing mechanism 1, which are sequentially disposed from bottom to top, two symmetrical quantitative material discharging mechanisms 6 are disposed on the power mixing mechanism 7, a plurality of reinforcing ribs 5 are disposed between the two quantitative material discharging mechanisms 6 and the heating stirring tank 4, the powder mixing mechanism 1 and the heating stirring tank 4 are respectively connected with the two quantitative material discharging mechanisms 6 through a discharging pipe 3 and a discharging pipe 18, and differential connecting shafts 8 are disposed between the powder mixing mechanism 1 and the heating stirring tank 4 and between the heating stirring tank 4 and the power mixing mechanism 7.
The power mixing mechanism 7 comprises a mixing base 26, a motor 28, a speed reducer 29 and a discharging assembly 25 are fixed inside the mixing base 26, the motor 28 is in transmission connection with the speed reducer 29, a stirring frame 22 is rotated in the middle of the upper end of the mixing base 26, the stirring frame 22 is in transmission connection with the speed reducer 29, an electric stirring frame 27 and a plurality of material scraping frames 23 are arranged on the stirring frame 22, a mixing barrel 21 is arranged at the upper end of the mixing base 26, the stirring frame 22, the material scraping frames 23 and the electric stirring frame 27 are all located inside the mixing barrel 21, a blanking hole 24 is formed in the mixing base 26, the discharging assembly 25 is located right below the blanking hole 24, and a heat-insulating cotton layer is arranged on the outer wall of the mixing barrel 21;
the discharging assembly 25 comprises a discharging barrel, a turning rod 31 and an electric push rod 32 are hinged to the discharging barrel, the end part of the electric push rod 32 is hinged to the end part of the turning rod 31, a plurality of connecting rods 30 are fixed on the turning rod 31, turning blocking plates 33 are fixed at the upper ends of the connecting rods 30, and the turning blocking plates 33 are located right below the discharging holes 24;
the differential connecting shaft 8 is connected between a rotating shaft of the heating and stirring tank 4 and a rotating and stirring frame 22, a plurality of supporting legs 20 which are uniformly distributed circumferentially are fixed at the lower end of the heating and stirring tank 4, the supporting legs 20 are fixed at the upper end of a mixing base 26, a blow-off pipe 19 is also arranged at the lower end of the heating and stirring tank 4, an electric control valve 2 is connected on a discharge pipe 18, and a plurality of first feed pipes 9 are arranged at the upper end of the heating and stirring tank 4;
the powder mixing mechanism 1 comprises a stirring tank, a plurality of supporting rods 17 which are circumferentially and uniformly distributed are arranged at the lower end of the stirring tank, the supporting rods 17 are fixed on a heating stirring tank 4, a discharge port 16 is formed at the lower end of the stirring tank, the upper end of a discharge pipe 3 is connected to the lower end of the discharge port 16, an electric control valve 2 is arranged on the discharge pipe 3, a differential connecting shaft 8 is connected between a rotating shaft of the stirring tank and a rotating shaft of the heating stirring tank 4, a plurality of scraping plates 15 which are circumferentially and uniformly distributed, a material distribution hole disc 14 and a material distribution spiral pipe 13 are sequentially arranged on the rotating shaft of the stirring tank from bottom to top, a material distribution barrel 12 is arranged on the stirring tank, the material distribution spiral pipe 13 is positioned inside the material distribution barrel 12, a second feeding pipe 10 is arranged at the upper end of the material distribution barrel 12, and a material distribution hopper 11 is arranged on the second feeding pipe 10;
the quantitative discharging mechanism 6 comprises a mounting plate, the mounting plate is fixed on the mixing barrel 21, the lower ends of the reinforcing ribs 5 are fixed on the mounting plate, a measuring box 34 and a pneumatic push rod 37 are fixed on the mounting plate, the end part of the pneumatic push rod 37 is connected with the measuring box 34, the measuring box 34 is respectively connected with the lower ends of the discharging pipe 3 and the discharging pipe 18, a turning connecting rod 36 is hinged on the mounting plate, the end part of the turning connecting rod 36 is hinged on an inner blade wheel shaft of the measuring box 34, a discharging air valve 35 is arranged at the discharging end of the measuring box 34, and the discharging end of the discharging air valve 35 is connected on the mixing barrel 21 through a pipeline;
adjusting the transmission rotation speed of the two differential connecting shafts 8 to satisfy the rotation of the quantitative discharging mechanism 6 and the powder mixing mechanism 1, so that the rotation speed of the quantitative discharging mechanism and the rotation speed of the power mixing mechanism 7 are not consistent, and one power and three output speeds are satisfied, driving the reducer 29 to rotate by the motor 28, driving the rotating stirring frame 22 to rotate, driving the differential connecting shafts 8 to rotate by the rotating stirring frame 22, driving the rotating shaft of the heating stirring tank 4, driving the differential connecting shafts 8 to rotate by the rotating shaft of the heating stirring tank 4, driving the rotating shaft of the stirring tank to rotate, injecting a certain amount of zinc chloride, potassium fulvate, calcined dolomite powder, urea, ammonium sulfate and magnesium sulfate obtained in the first step into the material distribution cylinder 12 through the material distribution hopper 11 and the second feeding pipe 10, uniformly distributing the materials through the material distribution spiral pipe 13, falling into the stirring tank through the material distribution hole plate 14, and scraping the mixed powder by the material scraping plate 15, forming a mixture;
adjusting the temperature of the heating and stirring tank 4 to 50-95 ℃, ensuring constant-temperature stirring, injecting a certain amount of urea, borax, zinc sulfate and water into the heating and stirring tank 4 through a plurality of first feeding pipes 9, and mixing and stirring to form a mixed solution;
the electric control valve 2 is opened, the mixture and the mixed solution can fall down, the mixture and the mixed solution respectively fall into the material measuring box 34 of the quantitative material discharging mechanism 6 through the discharging pipe 3 and the discharging pipe 18, the pneumatic push rod 37 pushes the material injection, the overturning connecting rod 36 pushes the inner blade wheel shaft of the material measuring box 34 to rotate, the material is discharged and is discharged into the pipeline of the discharging air valve 35, the gas is injected into the discharging air valve 35, the unit mixture and the unit mixed solution are injected into the material mixing cylinder 21, the stirring frame 22 drives the material scraping frame 23 and the electric stirring frame 27 to rotate, meanwhile, the electric stirring frame 27 can rotate, the mixture and the mixed solution fully form slurry, after the stirring is finished, the electric push rod 32 is pushed out to drive the turnover rod 31 to turn over, thereby drive connecting rod 30 and turn over to drive upset closure plate 33 and turn over, blanking hole 24 is opened, and the slurry that will stir the completion is discharged, pours into the granulator into, carries out subsequent spouting granulation.
The composite stirring device has compact structure, realizes one power and three different output speeds, and the powder mixing mechanism uniformly discharges materials and quickly stirs the materials; heating agitator tank constant temperature stirring guarantees the temperature stability, and powder mixing mechanism stirs simultaneously with heating agitator tank and power compounding mechanism, and heats the agitator tank stirring back instant short distance and pour into the inside stirring of power compounding mechanism by ration drop feed mechanism ration, avoids the mixed solution temperature to scatter and disappear, guarantees the misce bene, and the stirring misce bene improves compounding efficiency.
A soil acid regulator is prepared from the following raw materials in parts by weight: 50 parts of urea, 5 parts of borax, 5 parts of zinc sulfate, 30 parts of zinc chloride, 15 parts of potassium fulvate, 55 parts of calcined dolomite powder obtained in the step one, 25 parts of ammonium sulfate and 10 parts of magnesium sulfate (the same weight in each part).
Example 3
A preparation process of a soil acid regulator comprises the following steps:
calcining dolomite at the low temperature of 660-760 ℃, cooling and crushing to obtain calcined dolomite powder;
step two, respectively mixing a certain amount of urea, borax, zinc sulfate and water, heating to 50-95 ℃ while stirring, and fully dissolving to obtain a mixed solution;
step three, respectively taking a certain amount of zinc chloride, potassium fulvate, the calcined dolomite powder obtained in the step one, urea, ammonium sulfate and magnesium sulfate, sequentially adding and mixing the zinc chloride, the potassium fulvate, the calcined dolomite powder, the urea, the ammonium sulfate and the magnesium sulfate according to the sequence, and uniformly stirring to obtain a mixture;
step four, adding the mixture obtained in the step three into the mixed solution obtained in the step two to form slurry;
injecting the slurry obtained in the step four into a granulator for spraying granulation, and after moisture in the slurry is vaporized and separated, remaining solid which cannot be gasified forms granular materials;
step six, conveying the granular materials into a dryer for drying to remove moisture, controlling the temperature of the dryer at 280 ℃ and 450 ℃, and then cooling to below 45 ℃;
seventhly, conveying the cooled granular materials into a separation sieve for sieving to obtain soil acid regulating agent fertilizer granules with the grain size of 1.0-4.75 mm;
and step eight, returning and dissolving the soil acid regulating agent fertilizer which does not meet the standard, granulating again, placing the soil acid regulating agent fertilizer which meets the standard at the temperature of 35 ℃ for conditioning, and finally packaging according to different metering standards.
In the second step, the weight parts of the components are as follows: 50 parts of urea, 4.5 parts of borax, 4.5 parts of zinc sulfate and 35 parts of water (the weight of each part is the same).
In the third step, the weight parts of the components are as follows: 5 parts of zinc chloride, 5 parts of potassium fulvate, 35 parts of calcined dolomite powder obtained in the step one, 5 parts of urea, 1 part of ammonium sulfate and 1 part of magnesium sulfate (the weight of each part is the same).
As shown in fig. 3-9, the stirring apparatus used in steps two to four is a composite stirring apparatus, the composite stirring apparatus includes a power mixing mechanism 7, a heating stirring tank 4 and a powder mixing mechanism 1, which are sequentially disposed from bottom to top, two symmetrical quantitative material discharging mechanisms 6 are disposed on the power mixing mechanism 7, a plurality of reinforcing ribs 5 are disposed between the two quantitative material discharging mechanisms 6 and the heating stirring tank 4, the powder mixing mechanism 1 and the heating stirring tank 4 are respectively connected with the two quantitative material discharging mechanisms 6 through a discharging pipe 3 and a discharging pipe 18, and differential connecting shafts 8 are disposed between the powder mixing mechanism 1 and the heating stirring tank 4 and between the heating stirring tank 4 and the power mixing mechanism 7.
The power mixing mechanism 7 comprises a mixing base 26, a motor 28, a speed reducer 29 and a discharging assembly 25 are fixed inside the mixing base 26, the motor 28 is in transmission connection with the speed reducer 29, a stirring frame 22 is rotated in the middle of the upper end of the mixing base 26, the stirring frame 22 is in transmission connection with the speed reducer 29, an electric stirring frame 27 and a plurality of material scraping frames 23 are arranged on the stirring frame 22, a mixing barrel 21 is arranged at the upper end of the mixing base 26, the stirring frame 22, the material scraping frames 23 and the electric stirring frame 27 are all located inside the mixing barrel 21, a blanking hole 24 is formed in the mixing base 26, the discharging assembly 25 is located right below the blanking hole 24, and a heat-insulating cotton layer is arranged on the outer wall of the mixing barrel 21;
the discharging assembly 25 comprises a discharging barrel, a turning rod 31 and an electric push rod 32 are hinged to the discharging barrel, the end part of the electric push rod 32 is hinged to the end part of the turning rod 31, a plurality of connecting rods 30 are fixed on the turning rod 31, turning blocking plates 33 are fixed at the upper ends of the connecting rods 30, and the turning blocking plates 33 are located right below the discharging holes 24;
the differential connecting shaft 8 is connected between a rotating shaft of the heating and stirring tank 4 and a rotating and stirring frame 22, a plurality of supporting legs 20 which are uniformly distributed circumferentially are fixed at the lower end of the heating and stirring tank 4, the supporting legs 20 are fixed at the upper end of a mixing base 26, a blow-off pipe 19 is also arranged at the lower end of the heating and stirring tank 4, an electric control valve 2 is connected on a discharge pipe 18, and a plurality of first feed pipes 9 are arranged at the upper end of the heating and stirring tank 4;
the powder mixing mechanism 1 comprises a stirring tank, a plurality of supporting rods 17 which are circumferentially and uniformly distributed are arranged at the lower end of the stirring tank, the supporting rods 17 are fixed on a heating stirring tank 4, a discharge port 16 is formed at the lower end of the stirring tank, the upper end of a discharge pipe 3 is connected to the lower end of the discharge port 16, an electric control valve 2 is arranged on the discharge pipe 3, a differential connecting shaft 8 is connected between a rotating shaft of the stirring tank and a rotating shaft of the heating stirring tank 4, a plurality of scraping plates 15 which are circumferentially and uniformly distributed, a material distribution hole disc 14 and a material distribution spiral pipe 13 are sequentially arranged on the rotating shaft of the stirring tank from bottom to top, a material distribution barrel 12 is arranged on the stirring tank, the material distribution spiral pipe 13 is positioned inside the material distribution barrel 12, a second feeding pipe 10 is arranged at the upper end of the material distribution barrel 12, and a material distribution hopper 11 is arranged on the second feeding pipe 10;
quantitative drop feed mechanism 6 includes the mounting panel, the mounting panel is fixed on compounding section of thick bamboo 21, 5 lower extremes of strengthening rib are fixed on the mounting panel, be fixed with measurement case 34 and pneumatic push rod 37 on the mounting panel, pneumatic push rod 37's tip and measurement case 34 are connected, measurement case 34 connects the lower extreme at discharge tube 3 and discharging pipe 18 respectively, it has upset connecting rod 36 to articulate on the mounting panel, the tip of upset connecting rod 36 articulates on the inner blade wheel axle of measurement case 34, the discharge end of measurement case 34 is equipped with discharge air valve 35, discharge air valve 35's discharge end passes through the pipe connection on compounding section of thick bamboo 21.
A soil acid regulator is prepared from the following raw materials in parts by weight: 55 parts of urea, 4.5 parts of borax, 4.5 parts of zinc sulfate, 5 parts of zinc chloride, 5 parts of potassium fulvate, 35 parts of calcined dolomite powder obtained in the step one, 1 part of ammonium sulfate and 1 part of magnesium sulfate (the same weight in each part).
Example 4
A preparation process of a soil acid regulator comprises the following steps:
calcining dolomite at the low temperature of 660-760 ℃, cooling and crushing to obtain calcined dolomite powder;
step two, respectively mixing a certain amount of urea, borax, zinc sulfate and water, heating to 50-95 ℃ while stirring, and fully dissolving to obtain a mixed solution;
step three, respectively taking a certain amount of zinc chloride, potassium fulvate, the calcined dolomite powder obtained in the step one, urea, ammonium sulfate and magnesium sulfate, sequentially adding and mixing the zinc chloride, the potassium fulvate, the calcined dolomite powder, the urea, the ammonium sulfate and the magnesium sulfate according to the sequence, and uniformly stirring to obtain a mixture;
step four, adding the mixture obtained in the step three into the mixed solution obtained in the step two to form slurry;
injecting the slurry obtained in the step four into a granulator for spraying granulation, and after moisture in the slurry is vaporized and separated, remaining solid which cannot be gasified forms granular materials;
step six, conveying the granular materials into a dryer for drying to remove moisture, controlling the temperature of the dryer at 280 ℃ and 450 ℃, and then cooling to below 45 ℃;
seventhly, conveying the cooled granular materials into a separation sieve for sieving to obtain soil acid regulating agent fertilizer granules with the grain size of 1.0-4.75 mm;
and step eight, returning and dissolving the soil acid regulating agent fertilizer which does not meet the standard, granulating again, placing the soil acid regulating agent fertilizer which meets the standard at the temperature of 35 ℃ for conditioning, and finally packaging according to different metering standards.
In the second step, the weight parts of the components are as follows: 5 parts of urea, 5.5 parts of borax, 5.5 parts of zinc sulfate and 45 parts of water (the weight of each part is the same).
In the third step, the weight parts of the components are as follows: 60 parts of zinc chloride, 30 parts of potassium fulvate, 85 parts of calcined dolomite powder obtained in the step one, 40 parts of urea, 50 parts of ammonium sulfate and 20 parts of magnesium sulfate (the weight of each part is the same).
As shown in fig. 3-9, the stirring apparatus used in steps two to four is a composite stirring apparatus, the composite stirring apparatus includes a power mixing mechanism 7, a heating stirring tank 4 and a powder mixing mechanism 1, which are sequentially disposed from bottom to top, two symmetrical quantitative material discharging mechanisms 6 are disposed on the power mixing mechanism 7, a plurality of reinforcing ribs 5 are disposed between the two quantitative material discharging mechanisms 6 and the heating stirring tank 4, the powder mixing mechanism 1 and the heating stirring tank 4 are respectively connected with the two quantitative material discharging mechanisms 6 through a discharging pipe 3 and a discharging pipe 18, and differential connecting shafts 8 are disposed between the powder mixing mechanism 1 and the heating stirring tank 4 and between the heating stirring tank 4 and the power mixing mechanism 7.
The power mixing mechanism 7 comprises a mixing base 26, a motor 28, a speed reducer 29 and a discharging assembly 25 are fixed inside the mixing base 26, the motor 28 is in transmission connection with the speed reducer 29, a stirring frame 22 is rotated in the middle of the upper end of the mixing base 26, the stirring frame 22 is in transmission connection with the speed reducer 29, an electric stirring frame 27 and a plurality of material scraping frames 23 are arranged on the stirring frame 22, a mixing barrel 21 is arranged at the upper end of the mixing base 26, the stirring frame 22, the material scraping frames 23 and the electric stirring frame 27 are all located inside the mixing barrel 21, a blanking hole 24 is formed in the mixing base 26, the discharging assembly 25 is located right below the blanking hole 24, and a heat-insulating cotton layer is arranged on the outer wall of the mixing barrel 21;
the discharging assembly 25 comprises a discharging barrel, a turning rod 31 and an electric push rod 32 are hinged to the discharging barrel, the end part of the electric push rod 32 is hinged to the end part of the turning rod 31, a plurality of connecting rods 30 are fixed on the turning rod 31, turning blocking plates 33 are fixed at the upper ends of the connecting rods 30, and the turning blocking plates 33 are located right below the discharging holes 24;
the differential connecting shaft 8 is connected between a rotating shaft of the heating and stirring tank 4 and a rotating and stirring frame 22, a plurality of supporting legs 20 which are uniformly distributed circumferentially are fixed at the lower end of the heating and stirring tank 4, the supporting legs 20 are fixed at the upper end of a mixing base 26, a blow-off pipe 19 is also arranged at the lower end of the heating and stirring tank 4, an electric control valve 2 is connected on a discharge pipe 18, and a plurality of first feed pipes 9 are arranged at the upper end of the heating and stirring tank 4;
the powder mixing mechanism 1 comprises a stirring tank, a plurality of supporting rods 17 which are circumferentially and uniformly distributed are arranged at the lower end of the stirring tank, the supporting rods 17 are fixed on a heating stirring tank 4, a discharge port 16 is formed at the lower end of the stirring tank, the upper end of a discharge pipe 3 is connected to the lower end of the discharge port 16, an electric control valve 2 is arranged on the discharge pipe 3, a differential connecting shaft 8 is connected between a rotating shaft of the stirring tank and a rotating shaft of the heating stirring tank 4, a plurality of scraping plates 15 which are circumferentially and uniformly distributed, a material distribution hole disc 14 and a material distribution spiral pipe 13 are sequentially arranged on the rotating shaft of the stirring tank from bottom to top, a material distribution barrel 12 is arranged on the stirring tank, the material distribution spiral pipe 13 is positioned inside the material distribution barrel 12, a second feeding pipe 10 is arranged at the upper end of the material distribution barrel 12, and a material distribution hopper 11 is arranged on the second feeding pipe 10;
quantitative drop feed mechanism 6 includes the mounting panel, the mounting panel is fixed on compounding section of thick bamboo 21, 5 lower extremes of strengthening rib are fixed on the mounting panel, be fixed with measurement case 34 and pneumatic push rod 37 on the mounting panel, pneumatic push rod 37's tip and measurement case 34 are connected, measurement case 34 connects the lower extreme at discharge tube 3 and discharging pipe 18 respectively, it has upset connecting rod 36 to articulate on the mounting panel, the tip of upset connecting rod 36 articulates on the inner blade wheel axle of measurement case 34, the discharge end of measurement case 34 is equipped with discharge air valve 35, discharge air valve 35's discharge end passes through the pipe connection on compounding section of thick bamboo 21.
A soil acid regulator is prepared from the following raw materials in parts by weight: 45 parts of urea, 5.5 parts of borax, 5.5 parts of zinc sulfate, 60 parts of zinc chloride, 30 parts of potassium fulvate, 85 parts of calcined dolomite powder obtained in the step one, 50 parts of ammonium sulfate and 20 parts of magnesium sulfate (the same weight in each part).
Comparative experiments were carried out on the soil conditioner prepared in examples 1 to 4: wherein the comparison standard is as follows: the spraying granulation effect of the soil acid regulator (whether the granules are fragile or not); production efficiency (production per unit time); the unit power consumption and the acid regulating degree of the soil acid regulation (the soil acid regulation is carried out in the same amount of soil acid regulating agent, the same area, the same time and the same area, and the acid regulating degree is detected), and the data is more visual. The experimental table is as follows (table 1):
TABLE 1
According to the experimental data in the above table 1, it is known that, unlike the stirring and mixing device of only the second to fourth steps in the preparation of the example 1 and the example 2, the slurry spraying granulation effect is better when the soil acid regulator is prepared in the example 2, and the granules are not easily broken after being dried; the length of production is long; the unit power consumption is low; the soil acid regulating agent has a remarkable soil acid regulating effect, and is substantially the same as that of example 1.
Compared with the example 2, the raw materials in the examples 3 and 4 have different proportions, the production steps and the equipment are the same, the slurry spraying granulation effect is general when the soil acid regulator is prepared in the example 3, and the granules are not easy to break after being dried; the length of production is long; the unit power consumption is low; the soil acid regulating effect of the soil acid regulating agent is poor; example 4 the spraying granulation effect is poor when preparing the soil acid regulator, and the granules are not easy to break after being dried; the length of production is long; the unit power consumption is low; the soil acidity regulating effect of the soil acidity regulating agent is poor.
The preparation process adopts a composite stirring device for mixed production, has good spraying granulation effect when preparing the soil acid regulating agent, and is not easy to break after the granules are dried; the length of production is long; the unit power consumption is low; the soil acid regulating agent has scientific and reasonable raw material collocation and obvious soil acid regulating effect;
the composite stirring device has compact structure, realizes one power and three different output speeds, and the powder mixing mechanism uniformly discharges materials and quickly stirs the materials; heating agitator tank constant temperature stirring guarantees the temperature stability, and powder mixing mechanism stirs simultaneously with heating agitator tank and power compounding mechanism, and heats the agitator tank stirring back instant short distance and pour into the inside stirring of power compounding mechanism by ration drop feed mechanism ration, avoids the mixed solution temperature to scatter and disappear, guarantees the misce bene, and the stirring misce bene improves compounding efficiency.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. A preparation process of a soil acid regulator is characterized by comprising the following steps:
calcining dolomite at the low temperature of 660-760 ℃, cooling and crushing to obtain calcined dolomite powder;
step two, respectively mixing a certain amount of urea, borax, zinc sulfate and water, heating to 50-95 ℃ while stirring, and fully dissolving to obtain a mixed solution;
step three, respectively taking a certain amount of zinc chloride, potassium fulvate, the calcined dolomite powder obtained in the step one, urea, ammonium sulfate and magnesium sulfate, sequentially adding and mixing the zinc chloride, the potassium fulvate, the calcined dolomite powder, the urea, the ammonium sulfate and the magnesium sulfate according to the sequence, and uniformly stirring to obtain a mixture;
step four, adding the mixture obtained in the step three into the mixed solution obtained in the step two to form slurry;
injecting the slurry obtained in the step four into a granulator for spraying granulation, and after moisture in the slurry is vaporized and separated, remaining solid which cannot be gasified forms granular materials;
step six, conveying the granular materials into a dryer for drying to remove moisture, controlling the temperature of the dryer at 280 ℃ and 450 ℃, and then cooling to below 45 ℃;
seventhly, conveying the cooled granular materials into a separation sieve for sieving to obtain soil acid regulating agent fertilizer granules with the grain size of 1.0-4.75 mm;
and step eight, returning and dissolving the soil acid regulating agent fertilizer which does not meet the standard, granulating again, placing the soil acid regulating agent fertilizer which meets the standard at the temperature of 35 ℃ for conditioning, and finally packaging according to different metering standards.
2. The preparation process of the soil acidity regulator according to claim 1, wherein in the second step, the weight parts of the components are as follows: 5-50 parts of urea, 4.5-5.5 parts of borax, 4.5-5.5 parts of zinc sulfate and 35-45 parts of water (the same weight in each part).
3. The preparation process of the soil acid regulator according to claim 1 or 2, wherein in the second step, the weight parts of the components are as follows: 25 parts of urea, 5 parts of borax, 5 parts of zinc sulfate and 30 parts of water (each part is the same in weight).
4. The preparation process of the soil acid regulator according to claim 1, wherein in the third step, the weight parts of the components are as follows: 5-60 parts of zinc chloride, 5-30 parts of potassium fulvate, 35-85 parts of calcined dolomite powder obtained in the step one, 5-40 parts of urea, 0-50 parts of ammonium sulfate and 1-20 parts of magnesium sulfate (the same weight in each part).
5. The preparation process of the soil acid regulator according to claim 1 or 4, wherein in the third step, the weight parts of the components are as follows: 30 parts of zinc chloride, 20 parts of potassium fulvate, 55 parts of calcined dolomite powder obtained in the step one, 25 parts of urea, 25 parts of ammonium sulfate and 10 parts of magnesium sulfate (the weight of each part is the same).
6. The process for preparing a soil acidity regulator according to claim 1, the stirring equipment used in the second step to the fourth step is a composite stirring device, the composite stirring device comprises a power mixing mechanism (7), a heating stirring tank (4) and a powder mixing mechanism (1), the power mixing mechanism (7) is sequentially provided with two symmetrical quantitative discharging mechanisms (6), a plurality of reinforcing ribs (5) are arranged between the two quantitative discharging mechanisms (6) and the heating stirring tank (4), the powder mixing mechanism (1) and the heating stirring tank (4) are respectively connected with the two quantitative discharging mechanisms (6) through a discharging pipe (3) and a discharging pipe (18), and differential connecting shafts (8) are arranged between the powder mixing mechanism (1) and the heating stirring tank (4) and between the heating stirring tank (4) and the power mixing mechanism (7).
7. The process for preparing a soil acidity regulator according to claim 6, the power mixing mechanism (7) comprises a mixing base (26), a motor (28), a speed reducer (29) and a discharging assembly (25) are fixed inside the mixing base (26), the motor (28) is in transmission connection with the speed reducer (29), a stirring frame (22) is rotated in the middle of the upper end of the mixing base (26), the stirring frame (22) is in transmission connection with the speed reducer (29), an electric stirring frame (27) and a plurality of material scraping frames (23) are arranged on the stirring frame (22), a mixing barrel (21) is arranged at the upper end of the mixing base (26), the stirring frame (22), the material scraping frames (23) and the electric stirring frame (27) are all located inside the mixing barrel (21), a discharging hole (24) is formed in the mixing base (26), the discharging assembly (25) is located right below the discharging hole (24), and a heat-insulating cotton layer is arranged on the outer wall of the mixing barrel (21);
the discharging assembly (25) comprises a discharging barrel, a turning rod (31) and an electric push rod (32) are hinged to the discharging barrel, the end portion of the electric push rod (32) is hinged to the end portion of the turning rod (31), a plurality of connecting rods (30) are fixed to the turning rod (31), turning blocking plates (33) are fixed to the upper ends of the connecting rods (30), and the turning blocking plates (33) are located right below the discharging hole (24);
the differential connecting shaft (8) is connected between a rotating shaft of the heating stirring tank (4) and the rotating stirring frame (22), a plurality of supporting legs (20) which are uniformly distributed on the circumference are fixed at the lower end of the heating stirring tank (4), the supporting legs (20) are fixed at the upper end of the mixing base (26), a blow-off pipe (19) is also arranged at the lower end of the heating stirring tank (4), an electric control valve (2) is connected onto a discharge pipe (18), and a plurality of first feeding pipes (9) are arranged at the upper end of the heating stirring tank (4);
the powder mixing mechanism (1) comprises a stirring tank, the lower end of the stirring tank is provided with a plurality of supporting rods (17) uniformly distributed on the circumference, the supporting rods (17) are fixed on the heating stirring tank (4), the lower end of the stirring tank is provided with a discharge port (16), the upper end of a discharge pipe (3) is connected with the lower end of the discharge port (16), the discharge pipe (3) is provided with an electric control valve (2), a differential connecting shaft (8) is connected between a rotating shaft of the stirring tank and a rotating shaft of the heating stirring tank (4), the rotating shaft of the stirring tank is sequentially provided with a plurality of scraping plates (15) uniformly distributed on the circumference from bottom to top, the material mixing device comprises a material distributing hole disc (14) and a material distributing spiral pipe (13), wherein a material distributing barrel (12) is arranged on the material mixing tank, the material distributing spiral pipe (13) is positioned inside the material distributing barrel (12), a second material feeding pipe (10) is arranged at the upper end of the material distributing barrel (12), and a material mixing hopper (11) is arranged on the second material feeding pipe (10);
quantitative drop feed mechanism (6) include the mounting panel, the mounting panel is fixed on compounding section of thick bamboo (21), strengthening rib (5) lower extreme is fixed on the mounting panel, be fixed with measurement case (34) and pneumatic push rod (37) on the mounting panel, the tip and the measurement case (34) of pneumatic push rod (37) are connected, the lower extreme at discharge pipe (3) and discharging pipe (18) is connected respectively in measurement case (34), it has upset connecting rod (36) to articulate on the mounting panel, the tip of upset connecting rod (36) articulates on the interior blade wheel axle of measurement case (34), the discharge end of measurement case (34) is equipped with discharge air valve (35), the discharge end of discharge air valve (35) passes through the pipe connection on compounding section of thick bamboo (21).
8. A soil acid regulating agent prepared by the soil acid regulating agent preparation process of any one of claims 1 to 5, which is characterized by being prepared from the following raw materials in parts by weight: 10-90 parts of urea, 4.5-5.5 parts of borax, 4.5-5.5 parts of zinc sulfate, 5-60 parts of zinc chloride, 5-30 parts of potassium fulvate, 35-85 parts of calcined dolomite powder obtained in the first step, 0-50 parts of ammonium sulfate and 1-20 parts of magnesium sulfate (the same weight in each part).
9. The soil acid regulator according to claim 8, which is prepared from the following raw materials in parts by weight: 15-85 parts of urea, 4.8-5.2 parts of borax, 4.7-5.1 parts of zinc sulfate, 15-50 parts of zinc chloride, 10-20 parts of potassium fulvate, 55-75 parts of calcined dolomite powder obtained in the first step, 5-45 parts of ammonium sulfate and 5-15 parts of magnesium sulfate (the same weight in each part).
10. The soil acid regulator according to claims 8-9, which is prepared from the following raw materials in parts by weight: 55 parts of urea, 4.9 parts of borax, 4.9 parts of zinc sulfate, 35 parts of zinc chloride, 15 parts of potassium fulvate, 65 parts of calcined dolomite powder obtained in the step one, 30 parts of ammonium sulfate and 12 parts of magnesium sulfate (the same weight in each part).
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Denomination of invention: A soil acid regulator and its preparation process Granted publication date: 20240223 Pledgee: Xuancheng Zhenxuan Financing Guarantee Group Co.,Ltd. Pledgor: ANHUI JIAYA ECOLOGICAL ENGINEERING Co.,Ltd. Registration number: Y2024980007058 |
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