CN115448802A - Method for producing microbial bacterial fertilizer by using nitrophosphate fertilizer by-product - Google Patents
Method for producing microbial bacterial fertilizer by using nitrophosphate fertilizer by-product Download PDFInfo
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- CN115448802A CN115448802A CN202211176493.5A CN202211176493A CN115448802A CN 115448802 A CN115448802 A CN 115448802A CN 202211176493 A CN202211176493 A CN 202211176493A CN 115448802 A CN115448802 A CN 115448802A
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 87
- 230000000813 microbial effect Effects 0.000 title claims abstract description 71
- 239000006227 byproduct Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 34
- 230000001580 bacterial effect Effects 0.000 title claims abstract description 32
- 239000002245 particle Substances 0.000 claims abstract description 56
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 46
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 23
- 238000012216 screening Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 20
- 210000003608 fece Anatomy 0.000 claims abstract description 18
- 238000005469 granulation Methods 0.000 claims abstract description 18
- 230000003179 granulation Effects 0.000 claims abstract description 18
- 239000010871 livestock manure Substances 0.000 claims abstract description 18
- 238000000576 coating method Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 8
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims abstract description 3
- 239000002068 microbial inoculum Substances 0.000 claims abstract 4
- 239000003795 chemical substances by application Substances 0.000 claims description 34
- 239000000047 product Substances 0.000 claims description 13
- 235000015097 nutrients Nutrition 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 12
- 239000011575 calcium Substances 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 10
- 239000002351 wastewater Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000011265 semifinished product Substances 0.000 claims description 9
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims description 7
- 229910000278 bentonite Inorganic materials 0.000 claims description 7
- 239000000440 bentonite Substances 0.000 claims description 7
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 7
- 239000013538 functional additive Substances 0.000 claims description 7
- 239000004021 humic acid Substances 0.000 claims description 7
- 238000009817 primary granulation Methods 0.000 claims description 7
- 238000009818 secondary granulation Methods 0.000 claims description 7
- 241000894006 Bacteria Species 0.000 claims description 6
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical group OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims description 5
- 239000005416 organic matter Substances 0.000 claims description 3
- 241000233866 Fungi Species 0.000 claims description 2
- 235000021048 nutrient requirements Nutrition 0.000 claims 1
- 239000002893 slag Substances 0.000 abstract description 6
- 238000009825 accumulation Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000002686 phosphate fertilizer Substances 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 description 7
- 239000011777 magnesium Substances 0.000 description 7
- 229910052749 magnesium Inorganic materials 0.000 description 7
- 239000000969 carrier Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000002689 soil Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- DVARTQFDIMZBAA-UHFFFAOYSA-O ammonium nitrate Chemical compound [NH4+].[O-][N+]([O-])=O DVARTQFDIMZBAA-UHFFFAOYSA-O 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 239000011573 trace mineral Substances 0.000 description 2
- 235000013619 trace mineral Nutrition 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C1/00—Ammonium nitrate fertilisers
-
- 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
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a method for producing microbial bacterial manure by using a nitrophosphate fertilizer byproduct, belonging to the technical field of microbial manure. Taking a nitric phosphate fertilizer byproduct calcium carbonate as a main raw material, adding an auxiliary raw material and a regulator according to a certain proportion, stirring and mixing in a comprehensive stirrer, physically extruding the material after uniform mixing to obtain particles with certain strength, screening to select particles with proper particle size as seeds, performing secondary spraying granulation, adding a functional auxiliary agent into the sprayed slurry, drying, cooling and screening to obtain a semi-finished fertilizer with qualified particle size; and finally, coating the microbial inoculum to produce qualified microbial inoculum fertilizer particles. In the process of producing the microbial bacterial manure by using the nitrophosphate fertilizer byproduct, the calcium carbonate slag as a main raw material is in large demand, and if the scale of producing the microbial bacterial manure by using the technology is large enough, the problem of large environmental pressure caused by excessive accumulation of the calcium carbonate slag can be solved.
Description
Technical Field
The invention belongs to the technical field of microbial fertilizers, and particularly relates to a method for producing a microbial fertilizer by using a nitrophosphate fertilizer byproduct.
Background
Calcium carbonate is a byproduct generated in the production process of a nitrophosphate fertilizer device of Shanxi Tian Jian coal chemical industry group Limited company, the design capacity of the nitrophosphate fertilizer is 90 ten thousand tons/year, and the design yield of the byproduct calcium carbonate is 24.6 ten thousand tons/year. Without proper subsequent treatment, the calcium carbonate byproduct is deposited in large quantity, occupies large area and causes environmental pollution.
In recent decades, agriculture in China is rapidly developed, meanwhile, macroelement fertilizers are widely applied to agricultural production, the rapid reduction of the content of trace elements in soil is caused by the application of the macroelement fertilizers, the development of modern agriculture is restricted under the condition, and various nutrient elements required by the growth of crops can be well provided by applying the macroelement fertilizers and the macroelement fertilizers, so that the growth of the crops is promoted.
The by-product calcium carbonate slag is a solid powder mixture rich in various nutrient elements, contains secondary elements such as calcium, magnesium, silicon, sulfur and the like and trace elements such as boron, iron, zinc, manganese, molybdenum and the like through analysis, and has neutral or alkaline pH.
In agricultural production, calcium carbonate is used as a main raw material to produce soil conditioning chemical fertilizers, and the fertilizer has the advantages of crop supplement, soil restoration and improvement, acid and alkali regulation and the like; if functional microbial agents beneficial to crops are added into the fertilizer, high-end special fertilizer for corresponding crops can be produced, and the application prospect is wide. However, the by-product calcium carbonate solid powder has a loose crystal structure, and when the calcium carbonate solid powder is directly used as a raw material for granulation, the granulation performance is poor, and the strength of granules after granulation is low, which brings inconvenience to subsequent production and processing.
Disclosure of Invention
Aiming at the problem of excessive accumulation of calcium carbonate slag and high environmental pressure, the invention provides a method for producing microbial bacterial manure by using a nitrophosphate fertilizer byproduct.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for producing microbial bacterial manure by using a nitrophosphate fertilizer byproduct comprises the following steps:
step 1, mixing calcium carbonate, auxiliary raw materials and a regulator according to a certain proportion,
step 2, the materials enter a corresponding extrusion granulator through a material distributor to carry out primary granulation to obtain particles with certain strength, then screening is carried out to remove large particles and fine powder, and the screened qualified particle size particles are used as particles for secondary guniting granulation;
step 3, adding a functional additive in the roller spraying granulation process to ensure the content of available nutrients in the obtained fertilizer product;
step 4, after the secondary granulation is finished, drying, cooling and screening are needed to obtain a semi-finished fertilizer with qualified grain size;
and step 5, finally, coating a layer of microbial agent (including carrier organic matter of the microbial agent) on the surfaces of the semi-finished product particles to produce qualified microbial agent fertilizer particles.
Further, the main equipment is a belt conveyor, a comprehensive stirrer, a material distributor, an extrusion granulator, a roller screening machine, a roller guniting granulator, a dryer, a cooling screening machine and a wrapping roller.
Further, the mass ratio of the calcium carbonate, the auxiliary raw material and the regulator is 90-96.
Further, the auxiliary raw materials comprise humic acid and bentonite; the regulator is production wastewater.
Further, the functional auxiliary agent is ammonium nitrate and macromolecular organic matter.
Further, adding the materials mixed in the step 1 into a comprehensive stirrer for stirring.
Further, the target nutrients of the microbial fertilizer are required to be the following nutrients in weight percentage: 3 to 15 percent of N element and 20 to 40 percent of Ca and Mg element.
Further, the cooled and screened semi-finished product particles are wrapped, the wrapping powder is a microbial agent, the microbial agent adopts organic matters as a carrier, and the bacterial content of the finished product microbial fertilizer is 1-10 hundred million/g.
Further, in the wrapping step, the operating temperature is controlled to be 15 to 60 ℃, and the specific operating temperature is determined according to the wrapped fungi.
Furthermore, the production wastewater is WW water containing more than 90 percent of water, and the rest main component is NH 4 + 、Ca 2+ 、H + 、NO 3 - The pH value is 2-5.
Compared with the prior art, the invention has the following advantages:
(1) In the process of producing the microbial bacterial manure by using the nitrophosphate fertilizer byproduct, the byproduct calcium carbonate slag and the production wastewater (WW water) of the nitrophosphate fertilizer device are used as raw materials, so that waste is changed into valuable, and the produced microbial bacterial manure is sold, so that good economic benefit can be obtained.
(2) In the process of producing the microbial bacterial manure by using the nitrophosphate fertilizer byproduct, the calcium carbonate slag serving as a main raw material is large in demand, and if the scale of producing the microbial bacterial manure by using the technology is large enough, a series of problems of environmental protection and the like caused by excessive accumulation of calcium carbonate can be solved.
(3) In the process of producing the microbial bacterial fertilizer by using the nitrophosphate fertilizer byproduct, the microbial bacterial fertilizer can supplement elements for crops, repair and improve soil, regulate acid and inhibit alkali and the like, and meanwhile, the corresponding microbial bacterial agent high-end special fertilizer produced according to the characteristics of the crops has strong pertinence, is special for special fertilizers and has high efficiency and wide application prospect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a block diagram of a process flow for producing microbial bacterial manure from nitrophosphate fertilizer by-products.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the method for producing microbial bacterial manure by using nitrophosphate fertilizer by-product comprises belt conveyor, comprehensive stirrer, material distributor, extrusion granulator, roller screening machine, roller guniting granulator, dryer, cooling screening machine and wrapping roller.
Example 1
A method for producing microbial bacterial fertilizer by using a nitrophosphate fertilizer byproduct comprises the following steps:
step 1, adding 90kg of calcium carbonate, 1kg of humic acid, 1kg of bentonite and 1kg of production wastewater (WW water has pH of 2) into a comprehensive stirrer for mixing;
step 2, the fully mixed materials enter a corresponding extrusion granulator through a belt conveyor and a material distributor to carry out primary granulation to obtain particles with certain strength, then screening is carried out to remove large particles and fine powder, and the screened qualified particle size particles are used as particles for secondary spraying granulation;
and 3, adding functional additives (ammonium nitrate salt and macromolecular organic matters) in the roller spraying granulation process to ensure the content of available nutrients in the obtained fertilizer product: 3% of N element and 20% of Ca and Mg elements;
step 4, after the secondary granulation is finished, drying, cooling and screening are required to obtain a semi-finished fertilizer with qualified grain size;
and 5, finally, coating a layer of microbial agent (the microbial agent adopts organic matters as carriers) on the surfaces of the semi-finished product particles, wherein in the coating process, the operating temperature is 15 ℃, the activity of the microbial agent is ensured, so that qualified microbial agent fertilizer particles are produced, and the bacterium content of the finished microbial agent fertilizer is 2 hundred million/g.
Example 2
A method for producing microbial bacterial manure by using a nitrophosphate fertilizer byproduct comprises the following steps:
step 1, adding 96kg of calcium carbonate, 10kg of humic acid, 10kg of bentonite and 10kg of production wastewater (the pH value of WW water is 5) into a comprehensive stirrer for mixing;
step 2, the fully mixed materials enter a corresponding extrusion granulator through a belt conveyor and a material distributor to carry out primary granulation to obtain particles with certain strength, then screening is carried out to remove large particles and fine powder, and the screened qualified particle size particles are used as particles for secondary spraying granulation;
and 3, adding functional additives (ammonium nitrate and macromolecular organic matters) in the roller spraying granulation process to ensure the content of available nutrients in the obtained fertilizer product: 15% of N element and 40% of Ca and Mg elements;
step 4, after the secondary granulation is finished, drying, cooling and screening are needed to obtain a semi-finished fertilizer with qualified grain size;
and 5, finally, coating a layer of microbial agent (the microbial agent adopts organic matters as carriers) on the surfaces of the semi-finished product particles, wherein in the coating process, the operating temperature is 60 ℃, the activity of the microbial agent is ensured, so that qualified microbial agent fertilizer particles are produced, and the bacterium content of the finished product microbial agent fertilizer is 9 hundred million/g.
Example 3
A method for producing microbial bacterial manure by using a nitrophosphate fertilizer byproduct comprises the following steps:
step 1, adding 95kg of calcium carbonate, 8kg of humic acid, 8kg of bentonite and 2kg of production wastewater (the pH value of WW water is 3) into a comprehensive stirrer for mixing;
step 2, the fully mixed materials enter a corresponding extrusion granulator through a belt conveyor and a material separator to carry out primary granulation to obtain particles with certain strength, then screening is carried out to remove large particles and fine powder, and the screened qualified particle size particles are used as particles for secondary guniting granulation;
and 3, adding functional additives (ammonium nitrate salt and macromolecular organic matters) in the roller spraying granulation process to ensure the content of available nutrients in the obtained fertilizer product: 14 percent of N element and 38 percent of Ca and Mg element;
step 4, after the secondary granulation is finished, drying, cooling and screening are required to obtain a semi-finished fertilizer with qualified grain size;
and 5, finally, coating a layer of microbial agent (the microbial agent adopts organic matters as carriers) on the surfaces of the semi-finished product particles, wherein in the coating process, the operating temperature is 40 ℃, the activity of the microbial agent is ensured, so that qualified microbial agent fertilizer particles are produced, and the bacterium content of the finished product microbial agent fertilizer is 4 hundred million/g.
Example 4
A method for producing microbial bacterial fertilizer by using a nitrophosphate fertilizer byproduct comprises the following steps:
step 1, adding 94kg of calcium carbonate, 7kg of humic acid, 7kg of bentonite and 6kg of production wastewater (the pH value of WW water is 4) into a comprehensive stirrer for mixing;
step 2, the fully mixed materials enter a corresponding extrusion granulator through a belt conveyor and a material separator to carry out primary granulation to obtain particles with certain strength, then screening is carried out to remove large particles and fine powder, and the screened qualified particle size particles are used as particles for secondary guniting granulation;
and 3, adding functional additives (ammonium nitrate and macromolecular organic matters) in the roller spraying granulation process to ensure the content of available nutrients in the obtained fertilizer product: the N element is 8 percent, and the Ca and Mg elements are 30 percent;
step 4, after the secondary granulation is finished, drying, cooling and screening are needed to obtain a semi-finished fertilizer with qualified grain size;
and 5, finally, coating a layer of microbial agent (the microbial agent adopts organic matters as carriers) on the surfaces of the semi-finished product particles, wherein in the coating process, the operating temperature is 50 ℃, the activity of the microbial agent is ensured, so that qualified microbial agent fertilizer particles are produced, and the bacterium content of the finished product microbial agent fertilizer is 5 hundred million/g.
Example 5
A method for producing microbial bacterial fertilizer by using a nitrophosphate fertilizer byproduct comprises the following steps:
step 1, adding 91kg of calcium carbonate, 5kg of humic acid, 5kg of bentonite and 7kg of production wastewater (the pH value of WW water is 5) into a comprehensive stirrer for mixing;
step 2, the fully mixed materials enter a corresponding extrusion granulator through a belt conveyor and a material separator to carry out primary granulation to obtain particles with certain strength, then screening is carried out to remove large particles and fine powder, and the screened qualified particle size particles are used as particles for secondary guniting granulation;
and 3, adding functional additives (ammonium nitrate and macromolecular organic matters) in the roller spraying granulation process to ensure the content of available nutrients in the obtained fertilizer product: 10% of N element and 35% of Ca and Mg elements;
step 4, after the secondary granulation is finished, drying, cooling and screening are needed to obtain a semi-finished fertilizer with qualified grain size;
and 5, finally, coating a layer of microbial agent (the microbial agent adopts organic matters as carriers) on the surfaces of the semi-finished product particles, wherein in the coating process, the operating temperature is 58 ℃, the activity of the microbial agent is ensured, so that qualified microbial agent fertilizer particles are produced, and the bacterium content of the finished product microbial agent fertilizer is 8 hundred million/g.
Those skilled in the art will appreciate that the invention may be practiced without these specific details. Although the illustrative embodiments of the present invention have been described in order to facilitate those skilled in the art to understand the present invention, it is to be understood that the present invention is not limited to the scope of the embodiments, and that various changes may be made apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined in the appended claims, and all changes that can be made by the inventive concept are protected.
Claims (10)
1. A method for producing microbial bacterial manure by using a nitrophosphate fertilizer byproduct is characterized by comprising the following steps: the method comprises the following steps:
step 1, mixing calcium carbonate, auxiliary raw materials and a regulator according to a certain proportion,
step 2, the materials enter a corresponding extrusion granulator through a material distributor to carry out primary granulation to obtain particles with certain strength, then screening is carried out to remove large particles and fine powder, and the screened qualified particle size particles are used as particles for secondary spraying granulation;
step 3, adding a functional additive in the roller spraying granulation process to ensure the content of available nutrients in the obtained fertilizer product;
step 4, after the secondary granulation is finished, drying, cooling and screening are needed to obtain a semi-finished fertilizer with qualified grain size;
and step 5, finally, coating a layer of microbial inoculum on the surfaces of the semi-finished product particles to produce the qualified microbial inoculum fertilizer particles.
2. The method for producing microbial bacterial fertilizer by using nitrophosphate fertilizer by-product as claimed in claim 1, characterized in that: the main equipment is a belt conveyor, a comprehensive stirrer, a material distributor, an extrusion granulator, a roller screening machine, a roller guniting granulator, a dryer, a cooling screening machine and a wrapping roller.
3. The method for producing microbial bacterial fertilizer by using nitrophosphate fertilizer by-product as claimed in claim 1, characterized in that: the mass ratio of the calcium carbonate, the auxiliary raw material and the regulator is (90-96).
4. The method for producing microbial bacterial fertilizer by using nitrophosphate fertilizer by-product as claimed in claim 1, characterized in that: the auxiliary raw materials comprise humic acid and bentonite; the regulator is production wastewater.
5. The method for producing microbial bacterial fertilizer by using nitrophosphate fertilizer by-product as claimed in claim 1, characterized in that: the functional auxiliary agent is ammonium nitrate and macromolecular organic matter.
6. The method for producing microbial bacterial fertilizer by using nitrophosphate fertilizer by-product as claimed in claim 1, characterized in that: and (3) adding the materials mixed in the step (1) into a comprehensive stirrer for stirring.
7. The method for producing microbial bacterial manure from nitrophosphate fertilizer by-product as claimed in claim 1, characterized in that: the target nutrient requirement of the microbial fertilizer is that the weight content of the nutrient is as follows: the content of N element is 3-15%, and the content of Ca + Mg element is 20-40%.
8. The method for producing microbial bacterial manure from nitrophosphate fertilizer by-product as claimed in claim 1, characterized in that: and (3) coating the cooled and screened semi-finished product particles, wherein the coating powder is a microbial agent, the microbial agent adopts organic matters as a carrier, and the bacterium content of the finished product microbial fertilizer is 1-10 hundred million/g.
9. The method for producing microbial bacterial fertilizer by using nitrophosphate fertilizer by-product as claimed in claim 1, characterized in that: in the wrapping process, the operation temperature is controlled to be 15-60 ℃, and the specific operation temperature is determined according to the wrapped fungi.
10. The method for producing microbial bacterial manure from nitrophosphate fertilizer by-product as claimed in claim 4, characterized in that: the production wastewater is WW water containing more than 90 percent of water, and the rest main component is NH 4 + 、Ca 2+ 、H + 、NO 3 - The pH value is 2-5.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107082731A (en) * | 2017-03-14 | 2017-08-22 | 成都云图控股股份有限公司 | A kind of prilling process of particle nitrogen fertilizer |
| CN110105134A (en) * | 2019-04-30 | 2019-08-09 | 宜昌阿波罗肥业有限公司 | A kind of compound fertilizer production technology |
| CN114349580A (en) * | 2022-02-24 | 2022-04-15 | 天脊煤化工集团股份有限公司 | Soil conditioner prepared from nitrophosphate fertilizer by-product and granulation method thereof |
| CN114380650A (en) * | 2022-02-24 | 2022-04-22 | 天脊煤化工集团股份有限公司 | Phosphorus potassium nitrate composite microbial fertilizer and preparation method thereof |
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2022
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107082731A (en) * | 2017-03-14 | 2017-08-22 | 成都云图控股股份有限公司 | A kind of prilling process of particle nitrogen fertilizer |
| CN110105134A (en) * | 2019-04-30 | 2019-08-09 | 宜昌阿波罗肥业有限公司 | A kind of compound fertilizer production technology |
| CN114349580A (en) * | 2022-02-24 | 2022-04-15 | 天脊煤化工集团股份有限公司 | Soil conditioner prepared from nitrophosphate fertilizer by-product and granulation method thereof |
| CN114380650A (en) * | 2022-02-24 | 2022-04-22 | 天脊煤化工集团股份有限公司 | Phosphorus potassium nitrate composite microbial fertilizer and preparation method thereof |
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Application publication date: 20221209 |