CN102875260B - Production method of granular saline-alkaline soil water holding slow release fertilizer - Google Patents
Production method of granular saline-alkaline soil water holding slow release fertilizer Download PDFInfo
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- CN102875260B CN102875260B CN201210400570.0A CN201210400570A CN102875260B CN 102875260 B CN102875260 B CN 102875260B CN 201210400570 A CN201210400570 A CN 201210400570A CN 102875260 B CN102875260 B CN 102875260B
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- Prior art keywords
- saline
- fertilizer
- particulate state
- retaining water
- releasing nutrients
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 239000003337 fertilizer Substances 0.000 title claims abstract description 68
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000002689 soil Substances 0.000 title abstract description 31
- 239000004927 clay Substances 0.000 claims abstract description 40
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 29
- 229960000892 attapulgite Drugs 0.000 claims abstract description 27
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 15
- 239000011573 trace mineral Substances 0.000 claims abstract description 10
- 235000013619 trace mineral Nutrition 0.000 claims abstract description 10
- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 claims abstract description 8
- 229910000389 calcium phosphate Inorganic materials 0.000 claims abstract description 8
- 235000019691 monocalcium phosphate Nutrition 0.000 claims abstract description 8
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims abstract description 7
- 229910052939 potassium sulfate Inorganic materials 0.000 claims abstract description 7
- 235000011151 potassium sulphates Nutrition 0.000 claims abstract description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 50
- 239000011780 sodium chloride Substances 0.000 claims description 50
- 235000015097 nutrients Nutrition 0.000 claims description 49
- 238000000034 method Methods 0.000 claims description 11
- 239000004575 stone Substances 0.000 claims description 11
- 239000001117 sulphuric acid Substances 0.000 claims description 11
- 235000011149 sulphuric acid Nutrition 0.000 claims description 11
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 9
- 239000000725 suspension Substances 0.000 claims description 8
- 230000020477 pH reduction Effects 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 4
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 4
- 229910021538 borax Inorganic materials 0.000 claims description 4
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 4
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 4
- 239000011790 ferrous sulphate Substances 0.000 claims description 4
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 4
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 4
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 4
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 claims description 4
- 239000004328 sodium tetraborate Substances 0.000 claims description 4
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 4
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 4
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 4
- 229960001763 zinc sulfate Drugs 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 238000009775 high-speed stirring Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 6
- 239000004615 ingredient Substances 0.000 abstract description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 3
- 239000002253 acid Substances 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- 239000011574 phosphorus Substances 0.000 abstract description 3
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 239000011591 potassium Substances 0.000 abstract description 2
- 229910052700 potassium Inorganic materials 0.000 abstract description 2
- BIGPRXCJEDHCLP-UHFFFAOYSA-N ammonium bisulfate Chemical compound [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 abstract 1
- 229920000247 superabsorbent polymer Polymers 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229930002875 chlorophyll Natural products 0.000 description 4
- 235000019804 chlorophyll Nutrition 0.000 description 4
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 description 4
- 230000000050 nutritive effect Effects 0.000 description 4
- 238000009938 salting Methods 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 150000001720 carbohydrates Chemical class 0.000 description 3
- 230000012010 growth Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical group [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004060 metabolic process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 206010022971 Iron Deficiencies Diseases 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- WZLMXYBCAZZIRQ-UHFFFAOYSA-N [N].[P].[K] Chemical compound [N].[P].[K] WZLMXYBCAZZIRQ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229940095054 ammoniac Drugs 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 208000006278 hypochromic anemia Diseases 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000006241 metabolic reaction Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000002686 phosphate fertilizer Substances 0.000 description 1
- 239000002367 phosphate rock Substances 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000002688 soil aggregate Substances 0.000 description 1
- 239000002681 soil colloid Substances 0.000 description 1
Landscapes
- Fertilizers (AREA)
Abstract
The invention discloses a production method of granular saline-alkaline soil water holding slow release fertilizer. The key points of the technical scheme are as follows: the ingredients of the granular saline-alkaline soil water holding slow release fertilizer are added into a running double-horizontal shaft forced mixer, uniformly stirred and packed to obtain a finished product of the granular saline-alkaline soil water holding slow release fertilizer; and the ingredients of the granular saline-alkaline soil water holding slow release fertilizer consist of hyper-viscous attapulgite clay powder, acidified attapulgite clay, ardealite, ammonia sulfate, calcium superphosphate, potassium sulfate, sulfuric acid, super absorbent polymer and trace element mixture. The granular saline-alkaline soil water holding slow release fertilizer is acid and can reduce the alkalinity of soil, and promotes the formation of a soil granular structure so as to achieve the aim of improving the saline-alkaline soil. With a great quantity of nitrogen, phosphorus, potassium and multiple trace elements, the granular saline-alkaline soil water holding slow release fertilizer has the functions of slowly releasing the fertilizer efficiency and holding water and is suitable for the base fertilizer and additional fertilizer of the saline-alkaline soil.
Description
Technical field
The present invention relates to soil field, be specifically related to the production method of saline and alkaline ground of a kind of particulate state the fertilizer of retaining water and releasing nutrients slowly.
Background technology
The inland saline-alkali soil of China is mainly distributed in the ground such as northeast, North China, northwest, although some area is to build Garden Greenland on the ground in good farmland, with underground salt water, irrigates, and also can cause Soil Secondary saltings.
It is that soil compaction and Soil structure are poor that saline-alkali soil shows the most intuitively, and after irrigating, grogs is easy to automatically disperse and form skinning, and then stops moisture to infiltrate and reduce soil water storage capacity.
Saline land greening engineering is owing to being subject to the restriction of the local conditions such as soil, weather, construction and late maintaining difficulty are very large, improving flower plants and nursery stock surviving rate is the task of top priority, and alkaline water and soil is the major obstacle that causes flower plants and nursery stock death, therefore, need to correctly select applicable water, soil and fertilizer, and the fertilizer composition of supplying on market is more traditional nitrogen-phosphorus-potassium compound fertilizer, can not meet the demand of saline land greening engineering.
Phosphogypsum is the byproduct of sulfuric acid process phosphoric acid extraction production process, 1 ton of phosphoric acid of every production is by the phosphogypsum that produces 4.5～5.5 tons, a large amount of discharges of phosphogypsum not only take a large amount of soils, also, because phosphogypsum is through rainwater long period of soaking, cause the severe contamination to soil, water system and atmosphere.
Summary of the invention
The object of the invention is to overcome weak point in prior art, the production method of saline and alkaline ground of a kind of particulate state the fertilizer of retaining water and releasing nutrients slowly is provided.
The production method of saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly: the batching of saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly is added in the two shaft pugmill mixer having moved, be packaged as the finished product of saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly after stirring; The batching of saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly is comprised of the sticky attapulgite clay powder of height, Concavo-convex excellent stone clay after the acidify, phosphogypsum, sulfate of ammoniac, calcium superphosphate, potassium sulfate, sulfuric acid, High hydrophilous resin and trace element mixture.
Attapulgite clay be a kind of layer of chain-like structure containing Shuifu County's zeopan clay mineral, high sticky attapulgite clay soil property is fine and smooth, water-absorbent is strong, higher viscosity and the plasticity-of tool when wet, be conducive to the bonding between saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly raw material, and can be adsorbed on the surface of saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly raw material, the effective ingredient of saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly is slowly discharged, keep the nutritive ingredient in saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly not run off, the normal growth that is conducive to plant is grown.
High sticky attapulgite clay powder refers to gets 28.0g attapulgite clay powder sample, add in the suspension cup of homogenizer, add again 372g water, suspension cup is placed on homogenizer, under the rotating speed of 11000 revs/min, stir 20 minutes, to pour in the beaker of 250mL through high-speed stirring sample suspension again the viscosity of using NDJ-1 type rotational viscosimeter to test its suspension, tested viscosity value>=2200 into
mPasattapulgite clay powder be high sticky attapulgite clay powder, the sticky attapulgite clay powder particles of high fineness≤0.074 millimeter that the present invention selects.
Concavo-convex excellent stone clay after the acidify is that sulfuric acid is added in attapulgite clay and carries out acidification, for improving attapulgite clay absorption and cationic exchange capacity.
Phosphogypsum is the byproduct of sulfuric acid process phosphoric acid extraction production process, phosphogypsum main component is calcium sulfate, contain the necessary nutritive element of plant and a certain amount of free acids such as phosphorus, iron simultaneously, both can be used as fertilizer to be used, also can be used as soil improvement agent improvement saline-alkali soil.
Calcium superphosphate is the phosphate fertilizer directly making with sulfuric acid decomposing phosphate rock, in calcium superphosphate, containing effective P2O5:14～20%, uses calcium superphosphate and can reduce surface soil alkalinity.
Ammonium sulfate is physiological acidic fertilizer, and after the ammonium in fertilizer is absorbed by plants, residual sulfate radical can reduce surface soil alkalinity.
Potassium sulfate is conventional potash fertilizer in agricultural, contains potassium oxide: 50%～54% in potassium sulfate.
Sulfuric acid is that to select concentration be 98% industrial sulphuric acid.
The water absorbent rate of High hydrophilous resin can reach hundreds of times even thousands of times of own wt, and the present invention selects particle fineness≤0.25 millimeter of High hydrophilous resin, and water absorbent rate is 100～300 times.
Iron is to form the necessary element of chlorophyll, and during iron deficiency, plant just produces chlorosis, and it is faint yellow that blade is, and is even white, and the present invention selects ferrous sulfate.
Zinc is the component of some enzyme in plant materials, and zinc is also to promote that some metabolic reactions are essential, and zinc generates and forms carbohydrate and is absolutely necessary for chlorophyll, and the present invention selects zinc sulfate.
Copper has the ability that improves plant chlorophyll stability, avoids chlorophyll to wreck too early, is conducive to blade and carries out better photosynthesis, and the present invention selects copper sulfate.
Manganese can promote the metabolism of carbohydrate and the metabolism of nitrogen, has substantial connection with growth and development of plants and output, and the present invention selects manganous sulfate.
Boron can promote the normal operation of carbohydrate, and the position that boron-containing quantity is the highest in plant materials is colored, so boron deficiency often shows as " colored and unreal ", and the present invention selects borax.
The present invention is achieved by following technical proposals:
1, the production method of saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly: the batching of saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly is added in the two shaft pugmill mixer having moved, be packaged as the finished product of saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly after stirring;
The batching of saline and alkaline ground of described particulate state the fertilizer of retaining water and releasing nutrients slowly is comprised of following component by weight percentage: saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly work in-process 95～99.95% and High hydrophilous resin 0.05～5%;
The half-finished production method of saline and alkaline ground of described particulate state the fertilizer of retaining water and releasing nutrients slowly: (1) saline and alkaline ground of the particulate state half-finished batching of the fertilizer of retaining water and releasing nutrients slowly is added in the two shaft pugmill mixer having moved, stir the mixture into saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly; (2) by extruding in the mixture input twin rollers of saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly, be flap, the gauge control of flap is at 3～6 millimeters; (3) flap is inputted in rotary dryer and carried out roasting, temperature is controlled at 150～300 ℃; (4) will in the flap input pulverizer after roasting, pulverize, after pulverizing, screening is saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly work in-process, and work in-process particle fineness is controlled at 0.105～2.5 millimeter, water content≤2%;
The fertilizer of retaining water and releasing nutrients slowly half-finished batching in saline and alkaline ground of described particulate state is comprised of following component by weight percentage: high sticky attapulgite clay powder 2～10%, Concavo-convex excellent stone clay after the acidify 5～15%, phosphogypsum 10～30%, calcium superphosphate 5～28%, ammonium sulfate 5～25%, potassium sulfate 2～20%, trace element mixture 0.01～1% and water 10～35%;
The production method of described Concavo-convex excellent stone clay after the acidify: the batching of acidification is comprised of following component by weight percentage: attapulgite clay 55～75% and dilute sulphuric acid 25～45%, dilute sulphuric acid is added in attapulgite clay and carries out acidification, and the acidified processing of attapulgite clay is Concavo-convex excellent stone clay after the acidify after 24～72 hours;
The batching of described dilute sulphuric acid is comprised of following component by weight percentage: sulfuric acid 0.5～15% and water 85～99.5%;
Described sulfuric acid is that to select concentration be 98% industrial sulphuric acid, and the per-cent of concentration is weight percentage;
The per-cent of described water content is weight percentage;
The batching of described trace element mixture is comprised of following component by weight percentage: ferrous sulfate 0.01～35%, zinc sulfate 0.01～35%, copper sulfate 0.01～30%, manganous sulfate 0.01～30% and borax 0.01～20%.
It is acid that saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly is, can reduce the alkalescence of soil, sodium ion on contained calcium ion replaceable salt affected soil colloid, the content of soil exchangeable sodium ion is reduced, thereby further reduce the sodium basicity of soil, promote the formation of soil aggregate, reach the object in improvement saltings.
In saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly, contain a large amount of nitrogen, phosphorus, potassium and various trace elements, there is slow release fertilizer efficiency and water retaining function, can provide plant-growth necessary nutritive ingredient, keep the nutritive ingredient in saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly not run off, the normal growth that is conducive to plant is grown, and is that a kind of nutrition is complete, fertilizer efficiency is high, nontoxic, harmless, odorless and long saltings the fertilizer of retaining water and releasing nutrients slowly of water conservation time.
Saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly is applicable to the base manure of saltings proportion of crop planting, landscape engineering and topdresses.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
1, the production method of saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly: the batching of saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly is added in the two shaft pugmill mixer having moved, be packaged as the finished product of saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly after stirring;
The batching of saline and alkaline ground of described particulate state the fertilizer of retaining water and releasing nutrients slowly is comprised of following component by weight percentage: saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly work in-process 98.5% and High hydrophilous resin 1.5%;
The half-finished production method of saline and alkaline ground of described particulate state the fertilizer of retaining water and releasing nutrients slowly: (1) saline and alkaline ground of the particulate state half-finished batching of the fertilizer of retaining water and releasing nutrients slowly is added in the two shaft pugmill mixer having moved, stir the mixture into saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly; (2) by extruding in the mixture input twin rollers of saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly, be flap, the gauge control of flap is at 5 millimeters; (3) flap is inputted in rotary dryer and carried out roasting, temperature is controlled at 240～280 ℃; (4) will in the flap input pulverizer after roasting, pulverize, after pulverizing, screening is saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly work in-process, and work in-process particle fineness is controlled at 0.149～2.0 millimeter, water content≤1.8%;
The fertilizer of retaining water and releasing nutrients slowly half-finished batching in saline and alkaline ground of described particulate state is comprised of following component by weight percentage: high sticky attapulgite clay powder 6%, Concavo-convex excellent stone clay after the acidify 10%, phosphogypsum 22%, calcium superphosphate 18%, ammonium sulfate 14%, potassium sulfate 8.8%, trace element mixture 0.2% and water 21%;
The production method of described Concavo-convex excellent stone clay after the acidify: the batching of acidification is comprised of following component by weight percentage: attapulgite clay 66% and dilute sulphuric acid 34%, dilute sulphuric acid is added in attapulgite clay and carries out acidification, and the acidified processing of attapulgite clay is Concavo-convex excellent stone clay after the acidify after 48 hours;
The batching of described dilute sulphuric acid is comprised of following component by weight percentage: sulfuric acid 6% and water 94%;
The batching of described trace element mixture is comprised of following component by weight percentage: ferrous sulfate 30%, zinc sulfate 22%, copper sulfate 22%, manganous sulfate 16 % and borax 10%.
Claims (1)
1. the production method of saline and alkaline ground of a particulate state the fertilizer of retaining water and releasing nutrients slowly, it is characterized in that, the batching of saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly is added in the two shaft pugmill mixer having moved, after stirring, be packaged as the finished product of saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly;
The batching of saline and alkaline ground of described particulate state the fertilizer of retaining water and releasing nutrients slowly is comprised of following component by weight percentage: saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly work in-process 95～99.95% and High hydrophilous resin 0.05～5%;
The half-finished production method of saline and alkaline ground of described particulate state the fertilizer of retaining water and releasing nutrients slowly: (1) saline and alkaline ground of the particulate state half-finished batching of the fertilizer of retaining water and releasing nutrients slowly is added in the two shaft pugmill mixer having moved, stir the mixture into saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly; (2) by extruding in the mixture input twin rollers of saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly, be flap, the gauge control of flap is at 3～6 millimeters; (3) flap is inputted in rotary dryer and carried out roasting, temperature is controlled at 150～300 ℃; (4) will in the flap input pulverizer after roasting, pulverize, after pulverizing, screening is saline and alkaline ground of particulate state the fertilizer of retaining water and releasing nutrients slowly work in-process, and work in-process particle fineness is controlled at 0.105～2.5 millimeter, water content≤2%;
The fertilizer of retaining water and releasing nutrients slowly half-finished batching in saline and alkaline ground of described particulate state is comprised of following component by weight percentage: high sticky attapulgite clay powder 2～10%, Concavo-convex excellent stone clay after the acidify 5～15%, phosphogypsum 10～30%, calcium superphosphate 5～28%, ammonium sulfate 5～25%, potassium sulfate 2～20%, trace element mixture 0.01～1% and water 10～35%;
The production method of described Concavo-convex excellent stone clay after the acidify: the batching of acidification is comprised of following component by weight percentage: attapulgite clay 55～75% and dilute sulphuric acid 25～45%, dilute sulphuric acid is added in attapulgite clay and carries out acidification, and the acidified processing of attapulgite clay is Concavo-convex excellent stone clay after the acidify after 24～72 hours;
The batching of described dilute sulphuric acid is comprised of following component by weight percentage: sulfuric acid 0.5～15% and water 85～99.5%;
The batching of described trace element mixture is comprised of following component by weight percentage: ferrous sulfate 0.01～35%, zinc sulfate 0.01～35%, copper sulfate 0.01～30%, manganous sulfate 0.01～30% and borax 0.01～20%;
High sticky attapulgite clay powder refers to gets 28.0g attapulgite clay powder sample, add in the suspension cup of homogenizer, add again 372g water, suspension cup is placed on homogenizer, under the rotating speed of 11000 revs/min, stir 20 minutes, to pour in the beaker of 250mL through high-speed stirring sample suspension again the viscosity of using NDJ-1 type rotational viscosimeter to test its suspension, tested viscosity value>=2200 into
mPasattapulgite clay powder be high sticky attapulgite clay powder, the sticky attapulgite clay powder particles of high fineness≤0.074 millimeter that the present invention selects.
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| CN103553798A (en) * | 2013-10-31 | 2014-02-05 | 山东顺通环保材料有限公司 | Production method of compound type multifunctional super absorbent resin |
| CN103641666B (en) * | 2013-12-23 | 2015-12-09 | 史丹利化肥股份有限公司 | A kind of coastal saline-alkali soil regulation and control fertilizer special for cotton and preparation method thereof |
| CN103937507A (en) * | 2014-03-31 | 2014-07-23 | 高程华 | Saline-alkali soil improver as well as preparation method and use method thereof |
| CN104194799A (en) * | 2014-09-09 | 2014-12-10 | 中国科学院合肥物质科学研究院 | Method for preparing saline-alkali soil microenvironment improver |
| CN111345221A (en) * | 2020-02-12 | 2020-06-30 | 遵义师范学院 | Preparation method of slow release fertilizer aiming at difference of water retention performance of karst mountain land |
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