CN115057747A - Granulation process of soil conditioner - Google Patents
Granulation process of soil conditioner Download PDFInfo
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- CN115057747A CN115057747A CN202210822157.7A CN202210822157A CN115057747A CN 115057747 A CN115057747 A CN 115057747A CN 202210822157 A CN202210822157 A CN 202210822157A CN 115057747 A CN115057747 A CN 115057747A
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 239000003516 soil conditioner Substances 0.000 title claims abstract description 25
- 238000005469 granulation Methods 0.000 title claims abstract description 23
- 230000003179 granulation Effects 0.000 title claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 267
- 239000002245 particle Substances 0.000 claims abstract description 103
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 230000001502 supplementing effect Effects 0.000 claims abstract description 51
- 239000000853 adhesive Substances 0.000 claims abstract description 24
- 230000001070 adhesive effect Effects 0.000 claims abstract description 24
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 238000000465 moulding Methods 0.000 claims abstract description 17
- 230000008961 swelling Effects 0.000 claims abstract description 17
- 238000000227 grinding Methods 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 15
- 238000005507 spraying Methods 0.000 claims abstract description 13
- 238000012216 screening Methods 0.000 claims description 42
- 238000001035 drying Methods 0.000 claims description 28
- 238000004806 packaging method and process Methods 0.000 claims description 14
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 13
- 239000011707 mineral Substances 0.000 claims description 13
- 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 6
- 239000004021 humic acid Substances 0.000 claims description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 abstract description 6
- 229940072033 potash Drugs 0.000 abstract description 6
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 abstract description 6
- 235000015320 potassium carbonate Nutrition 0.000 abstract description 6
- 239000002689 soil Substances 0.000 abstract description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract description 5
- 239000003337 fertilizer Substances 0.000 abstract description 5
- 239000011777 magnesium Substances 0.000 abstract description 5
- 229910052749 magnesium Inorganic materials 0.000 abstract description 5
- 239000008187 granular material Substances 0.000 abstract description 2
- 235000010755 mineral Nutrition 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003020 moisturizing effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 235000012041 food component Nutrition 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- 239000002994 raw material Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D5/00—Fertilisers containing magnesium
-
- 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
Abstract
The invention provides a granulation process of a soil conditioner, which belongs to the technical field of granulation and comprises the following steps: the method comprises the following steps: grinding the calcined ore into powder, wherein the particle size of the ground powder is 700 meshes; step two: prewetting, namely adding water with the weight being 10% of the weight of the ore powder into the ore powder, then adding an adhesive with the weight being 13% of the weight of the ore powder, adding a swelling agent with the weight being 2-3% of the weight of the ore powder, uniformly stirring, and then adding water with the weight being 10% of the weight of the ore powder; step three: adding the mixed ore powder into a disc granulator, and rotating for 20 min; step four: supplementing water, namely spraying and supplementing water to the ore powder in the disc granulator, wherein the water supplementing amount is 5% of the weight of the ore powder; step five: molding, namely supplementing ore powder in the disc granulator until the ore powder is granular, and maintaining the disc granulator to rotate for 10 min; the invention can granulate with higher forming rate, and the granulated potash magnesium fertilizer can be released slowly in the soil to improve the soil.
Description
Technical Field
The invention relates to the technical field of granulation, in particular to a granulation process of a soil conditioner.
Background
The potash magnesium fertilizer is a novel mineral source soil conditioner which is formed by calcining natural minerals such as potash feldspar, dolomite, limestone and the like serving as main raw materials at high temperature, the main nutritional components of the potash magnesium fertilizer are effective silicon oxide, effective calcium oxide, effective potassium oxide, effective magnesium oxide and the like which can be absorbed by plants, the existing potash magnesium fertilizer is mostly powdery, the forming is difficult, the cost required to be formed is extremely high, and the existing particles are bonded and formed, are not easy to disperse and decompose in soil and cannot be substantially utilized.
Disclosure of Invention
In view of the above, the invention provides a granulation process of a soil conditioner, which can perform granulation at a high forming rate, and the granular potash magnesium fertilizer can be slowly released in soil to improve the soil.
In order to solve the technical problems, the invention provides a granulation process of a soil conditioner, which comprises the following steps:
the method comprises the following steps: grinding the calcined ore into powder, wherein the particle size of the ground powder is 700 meshes;
step two: prewetting, namely adding water with the weight being 10% of the weight of the ore powder into the ore powder, then adding an adhesive with the weight being 13% of the weight of the ore powder, adding a swelling agent with the weight being 2-3% of the weight of the ore powder, uniformly stirring, and then adding water with the weight being 10% of the weight of the ore powder;
step three: adding the uniformly mixed ore powder into a disc granulator, and rotating for 20 min;
step four: supplementing water, namely spraying and supplementing water to the ore powder in the disc granulator, wherein the water supplementing amount is 5% of the weight of the ore powder;
step five: molding, namely supplementing ore powder in the disc granulator until the ore powder is granular, and maintaining the disc granulator to rotate for 10 min;
step six: screening, namely separating qualified ore powder particles from powder and large ore particles;
step seven: drying, namely drying the granular ore powder at the temperature of 700-800 ℃ for 30 min;
step eight: screening, screening the dried particles again, and packaging the ore powder particles after being divided into three forms.
Further, the adhesive in the second step is a plant type adhesive.
Further, MgSO (MgSO) is added into the swelling agent 4 。
Furthermore, humic acid is added into the adhesive.
Further, the three forms of the ore powder particles in the step eight are respectively 4-5mm, 2.5-3mm and 1 mm.
Further, the rotating speed of the disk granulator is 10-15 rpm.
The technical scheme of the invention has the following beneficial effects:
1. the mineral powder is bonded by the adhesive added with humic acid, so that the formation of particles in the granulation process is promoted, the particles are easily decomposed in soil, and the particles are convenient for being absorbed by plants.
2. Through using specific moisturizing volume and the mode of spraying moisturizing for powdered ore powder is convenient for the shaping, and then reduces extravagant and the production of the not shaping material of large granule.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
Example one
The embodiment provides a granulation process of a soil conditioner, which comprises the following steps:
the method comprises the following steps: grinding the calcined ore into powder, wherein the particle size of the ground powder is 700 meshes;
step two: prewetting, namely adding water with the weight being 10% of the weight of the ore powder into the ore powder, then adding an adhesive with the weight being 13% of the weight of the ore powder, adding a swelling agent with the weight being 2-3% of the weight of the ore powder, uniformly stirring, and then adding water with the weight being 10% of the weight of the ore powder;
step three: adding the uniformly mixed ore powder into a disc granulator, and rotating for 20 min;
step four: supplementing water, namely spraying and supplementing water to the ore powder in the disc granulator, wherein the water supplementing amount is 5% of the weight of the ore powder;
step five: molding, namely supplementing ore powder in the disc granulator until the ore powder is granular, and maintaining the disc granulator to rotate for 10 min;
step six: screening, namely separating qualified ore powder particles from powder and large ore particles;
step seven: drying, namely drying the granular ore powder at the temperature of 700-800 ℃ for 30 min;
step eight: screening, namely screening the dried particles again, and packaging the ore powder particles after the ore powder particles are divided into three forms;
humic acid is added into the adhesive
And step eight, wherein the three forms of the ore powder particles are 4-5mm, 2.5-3mm and 1mm respectively.
The rotation speed of the disk granulator is 10-15 rpm.
Example two
The embodiment provides a granulation process of a soil conditioner, which comprises the following steps:
the method comprises the following steps: grinding the calcined ore into powder, wherein the particle size of the ground powder is 700 meshes;
step two: prewetting, namely adding water with the weight being 10% of the weight of the ore powder into the ore powder, then adding an adhesive with the weight being 13% of the weight of the ore powder, adding a swelling agent with the weight being 2-3% of the weight of the ore powder, uniformly stirring, and then adding water with the weight being 10% of the weight of the ore powder;
step three: adding the uniformly mixed ore powder into a disc granulator, and rotating for 20 min;
step four: supplementing water, namely spraying and supplementing water to the ore powder in the disc granulator, wherein the water supplementing amount is 5% of the weight of the ore powder;
step five: molding, namely supplementing ore powder in the disc granulator until the ore powder is granular, and maintaining the disc granulator to rotate for 10 min;
step six: screening, namely separating qualified ore powder particles from powder and large ore particles;
step seven: drying, namely drying the granular ore powder at the temperature of 700-800 ℃ for 30 min;
step eight: screening, namely screening the dried particles again, and packaging the ore powder particles after the ore powder particles are divided into three forms;
the adhesive is free of humic acid
And step eight, wherein the three forms of the ore powder particles are 4-5mm, 2.5-3mm and 1mm respectively.
The rotation speed of the disk granulator is 10-15 rpm.
Examples one and two general examples the following data were obtained by controlling the humic acid content of the binder, and thus counting the forming rate and the remaining particles in the land after release:
EXAMPLE III
The embodiment provides a granulation process of a soil conditioner, which comprises the following steps:
the method comprises the following steps: grinding the calcined ore into powder, wherein the particle size of the ground powder is 700 meshes;
step two: prewetting, namely adding water with the weight being 10% of the weight of the ore powder into the ore powder, then adding an adhesive with the weight being 13% of the weight of the ore powder, adding a swelling agent with the weight being 2-3% of the weight of the ore powder, uniformly stirring, and then adding water with the weight being 10% of the weight of the ore powder;
step three: adding the uniformly mixed ore powder into a disc granulator, and rotating for 20 min;
step four: spraying and supplementing water to the ore powder in the disc granulator;
step five: molding, namely supplementing ore powder in the disc granulator until the ore powder is granular, and maintaining the disc granulator to rotate for 10 min;
step six: screening, namely separating qualified ore powder particles from powder and large ore particles;
step seven: drying, namely drying the granular ore powder at the temperature of 700-800 ℃ for 30 min;
step eight: screening, namely screening the dried particles again, and packaging the ore powder particles after the ore powder particles are divided into three forms;
and step eight, wherein the three forms of the ore powder particles are 4-5mm, 2.5-3mm and 1mm respectively.
The rotation speed of the disk granulator is 10-15 rpm.
Example four
The embodiment provides a granulation process of a soil conditioner, which comprises the following steps:
the method comprises the following steps: grinding the calcined ore into powder, wherein the particle size of the ground powder is 700 meshes;
step two: prewetting, namely adding water with the weight being 10% of the weight of the ore powder into the ore powder, then adding an adhesive with the weight being 13% of the weight of the ore powder, adding a swelling agent with the weight being 2-3% of the weight of the ore powder, uniformly stirring, and then adding water with the weight being 10% of the weight of the ore powder;
step three: adding the uniformly mixed ore powder into a disc granulator, and rotating for 20 min;
step four: water is supplemented, mineral powder in the disc granulator is watered and supplemented, and the water supplement amount is 5 percent of the weight of the mineral powder;
step five: molding, namely supplementing ore powder in the disc granulator until the ore powder is granular, and maintaining the disc granulator to rotate for 10 min;
step six: screening, namely separating qualified ore powder particles from powder and large ore particles;
step seven: drying, namely drying the granular ore powder at the temperature of 700-800 ℃ for 30 min;
step eight: screening, namely screening the dried particles again, and packaging the ore powder particles after the ore powder particles are divided into three forms;
and step eight, wherein the three forms of the ore powder particles are 4-5mm, 2.5-3mm and 1mm respectively.
The rotation speed of the disk granulator is 10-15 rpm.
In the first embodiment, the third embodiment and the fourth embodiment, different conditioners are obtained by controlling the water replenishing amount and the water replenishing manner in the second step, and the forming speed and the forming rate in the production process are recorded, so that the following data are obtained:
EXAMPLE five
The embodiment provides a granulation process of a soil conditioner, which comprises the following steps:
the method comprises the following steps: grinding the calcined ore into powder, wherein the particle size of the ground powder is 700 meshes;
step two: prewetting, namely adding water with the weight being 10% of the weight of the ore powder into the ore powder, then adding an adhesive with the weight being 13% of the weight of the ore powder, adding a swelling agent with the weight being 2-3% of the weight of the ore powder, uniformly stirring, and then adding water with the weight being 10% of the weight of the ore powder;
step three: adding the uniformly mixed ore powder into a disc granulator, and rotating for 20 min;
step four: supplementing water, namely spraying and supplementing water to the ore powder in the disc granulator, wherein the water supplementing amount is 5% of the weight of the ore powder;
step five: molding, namely supplementing ore powder in the disc granulator until the ore powder is granular, and maintaining the disc granulator to rotate for 10 min;
step six: screening, namely separating qualified ore powder particles from powder and large ore particles;
step seven: drying, namely drying the granular ore powder at the temperature of 700-800 ℃ for 30 min;
step eight: screening, namely screening the dried particles again, and packaging the ore powder particles after the ore powder particles are divided into three forms;
and step eight, wherein the three forms of the ore powder particles are 4-5mm, 2.5-3mm and 1mm respectively.
The rotation speed of the disk granulator is 10-15 rpm.
EXAMPLE six
The embodiment provides a granulation process of a soil conditioner, which comprises the following steps:
the method comprises the following steps: grinding the calcined ore into powder, wherein the particle size of the ground powder is 700 meshes;
step two: prewetting, namely adding water with the weight being 10% of the weight of the ore powder into the ore powder, then adding an adhesive with the weight being 13% of the weight of the ore powder, adding a swelling agent with the weight being 2-3% of the weight of the ore powder, uniformly stirring, and then adding water with the weight being 10% of the weight of the ore powder;
step three: adding the uniformly mixed ore powder into a disc granulator, and rotating for 20 min;
step four: water is supplemented, the mineral powder in the disc granulator is sprayed and supplemented, and the water supplementing amount is 3 percent of the weight of the mineral powder;
step five: molding, namely supplementing ore powder in the disc granulator until the ore powder is granular, and maintaining the disc granulator to rotate for 10 min;
step six: screening, namely separating qualified ore powder particles from powder and large ore particles;
step seven: drying, namely drying the granular ore powder at the temperature of 700-800 ℃ for 30 min;
step eight: screening, namely screening the dried particles again, and packaging the ore powder particles after the ore powder particles are divided into three forms;
and step eight, wherein the three forms of the ore powder particles are 4-5mm, 2.5-3mm and 1mm respectively.
The rotation speed of the disk granulator is 10-15 rpm.
EXAMPLE seven
The embodiment provides a granulation process of a soil conditioner, which comprises the following steps:
the method comprises the following steps: grinding the calcined ore into powder, wherein the particle size of the ground powder is 700 meshes;
step two: prewetting, namely adding water with the weight being 10% of the weight of the ore powder into the ore powder, then adding an adhesive with the weight being 13% of the weight of the ore powder, adding a swelling agent with the weight being 2-3% of the weight of the ore powder, uniformly stirring, and then adding water with the weight being 10% of the weight of the ore powder;
step three: adding the uniformly mixed ore powder into a disc granulator, and rotating for 20 min;
step four: supplementing water, namely spraying and supplementing water to the ore powder in the disc granulator, wherein the water supplementing amount is 15% of the weight of the ore powder;
step five: molding, namely supplementing the mineral powder in the disc granulator until the mineral powder is granular, and maintaining the disc granulator to rotate for 10 min;
step six: screening, namely separating qualified ore powder particles from powder and large ore particles;
step seven: drying, namely drying the granular ore powder at the temperature of 700-800 ℃ for 30 min;
step eight: screening, namely screening the dried particles again, and packaging the ore powder particles after the ore powder particles are divided into three forms;
and step eight, wherein the three forms of the ore powder particles are 4-5mm, 2.5-3mm and 1mm respectively.
The rotation speed of the disk granulator is 10-15 rpm.
Example eight
The embodiment provides a granulation process of a soil conditioner, which comprises the following steps:
the method comprises the following steps: grinding the calcined ore into powder, wherein the particle size of the ground powder is 700 meshes;
step two: prewetting, namely adding water with the weight being 10% of the weight of the ore powder into the ore powder, then adding an adhesive with the weight being 13% of the weight of the ore powder, adding a swelling agent with the weight being 2-3% of the weight of the ore powder, uniformly stirring, and then adding water with the weight being 10% of the weight of the ore powder;
step three: adding the uniformly mixed ore powder into a disc granulator, and rotating for 20 min;
step four: supplementing water, namely spraying and supplementing water to the ore powder in the disc granulator, wherein the water supplementing amount is 12% of the weight of the ore powder;
step five: molding, namely supplementing ore powder in the disc granulator until the ore powder is granular, and maintaining the disc granulator to rotate for 10 min;
step six: screening, namely separating qualified ore powder particles from powder and large ore particles;
step seven: drying, namely drying the granular ore powder at the temperature of 700-800 ℃ for 30 min;
step eight: screening, namely screening the dried particles again, and packaging the ore powder particles after the ore powder particles are divided into three forms;
and step eight, wherein the three forms of the ore powder particles are 4-5mm, 2.5-3mm and 1mm respectively.
The rotation speed of the disk granulator is 10-15 rpm.
Example nine
The embodiment provides a granulation process of a soil conditioner, which comprises the following steps:
the method comprises the following steps: grinding the calcined ore into powder, wherein the particle size of the ground powder is 700 meshes;
step two: prewetting, namely adding water with the weight being 10% of the weight of the ore powder into the ore powder, then adding an adhesive with the weight being 13% of the weight of the ore powder, adding a swelling agent with the weight being 2-3% of the weight of the ore powder, uniformly stirring, and then adding water with the weight being 10% of the weight of the ore powder;
step three: adding the uniformly mixed ore powder into a disc granulator, and rotating for 20 min;
step four: supplementing water, namely spraying and supplementing water to the ore powder in the disc granulator, wherein the water supplementing amount is 9% of the weight of the ore powder;
step five: molding, namely supplementing ore powder in the disc granulator until the ore powder is granular, and maintaining the disc granulator to rotate for 10 min;
step six: screening, namely separating qualified ore powder particles from powder and large ore particles;
step seven: drying, namely drying the granular ore powder at the temperature of 700-800 ℃ for 30 min;
step eight: screening, namely screening the dried particles again, and packaging the ore powder particles after the ore powder particles are divided into three forms;
and step eight, wherein the three forms of the ore powder particles are 4-5mm, 2.5-3mm and 1mm respectively.
The rotation speed of the disk granulator is 10-15 rpm.
Example ten
The embodiment provides a granulation process of a soil conditioner, which comprises the following steps:
the method comprises the following steps: grinding the calcined ore into powder, wherein the particle size of the ground powder is 700 meshes;
step two: prewetting, namely adding water with the weight being 10% of the weight of the ore powder into the ore powder, then adding an adhesive with the weight being 13% of the weight of the ore powder, adding a swelling agent with the weight being 2-3% of the weight of the ore powder, uniformly stirring, and then adding water with the weight being 10% of the weight of the ore powder;
step three: adding the uniformly mixed ore powder into a disc granulator, and rotating for 20 min;
step four: water replenishing, wherein the ore powder in the disc granulator is subjected to spray water replenishing, and the water replenishing amount is 1% of the weight of the ore powder;
step five: molding, namely supplementing ore powder in the disc granulator until the ore powder is granular, and maintaining the disc granulator to rotate for 10 min;
step six: screening, namely separating qualified ore powder particles from powder and large ore particles;
step seven: drying, namely drying the granular ore powder at the temperature of 700-800 ℃ for 30 min;
step eight: screening, namely screening the dried particles again, and packaging the ore powder particles after the ore powder particles are divided into three forms;
and step eight, wherein the three forms of the ore powder particles are 4-5mm, 2.5-3mm and 1mm respectively.
The rotation speed of the disk granulator is 10-15 rpm.
The first embodiment, the fifth embodiment, the sixth embodiment, the seventh embodiment, the eighth embodiment, the ninth embodiment and the tenth embodiment observe the forming capability of the powdered ore powder in the production process by controlling the water replenishing amount in the fourth step, and record the residual powdered ore powder amount after the forming process is completed, so as to obtain the following data:
| from the start of molding to the end of molding | Amount of remaining powder | |
| Example one | 6 | 7% |
| EXAMPLE five | 8 | 12 |
| Example six | 11 | 20 |
| EXAMPLE seven | 13 | 33 |
| Example eight | 14 | 32 |
| Example nine | 17 | 41 |
| Example ten | 13 | 27 |
EXAMPLE eleven
The embodiment provides a granulation process of a soil conditioner, which comprises the following steps:
the method comprises the following steps: grinding the calcined ore into powder, wherein the particle size of the ground powder is 700 meshes;
step two: prewetting, namely adding water with the weight being 10% of the weight of the ore powder into the ore powder, then adding an adhesive with the weight being 13% of the weight of the ore powder, adding a swelling agent with the weight being 2-3% of the weight of the ore powder, uniformly stirring, and then adding water with the weight being 10% of the weight of the ore powder;
step three: adding the uniformly mixed ore powder into a disc granulator, and rotating for 20 min;
step four: supplementing water, namely spraying and supplementing water to the ore powder in the disc granulator, wherein the water supplementing amount is 5% of the weight of the ore powder;
step five: molding, namely supplementing ore powder in the disc granulator until the ore powder is granular, and maintaining the disc granulator to rotate for 10 min;
step six: screening, namely separating qualified ore powder particles from powder and large ore particles;
step seven: drying, namely drying the granular ore powder at the temperature of 700-800 ℃ for 30 min;
step eight: screening, namely screening the dried particles again, and packaging the ore powder particles after the ore powder particles are divided into three forms;
and step eight, wherein the three forms of the ore powder particles are 4-5mm, 2.5-3mm and 1mm respectively.
The rotation speed of the disk granulator is 10-15 rpm.
EXAMPLE twelve
The embodiment provides a granulation process of a soil conditioner, which comprises the following steps:
the method comprises the following steps: grinding the calcined ore into powder, wherein the particle size of the ground powder is 700 meshes;
step two: prewetting, namely adding water with the weight being 10% of the weight of the ore powder into the ore powder, then adding an adhesive with the weight being 13% of the weight of the ore powder, adding a swelling agent with the weight being 2-3% of the weight of the ore powder, uniformly stirring, and then adding water with the weight being 10% of the weight of the ore powder;
step three: adding the uniformly mixed ore powder into a disc granulator, and rotating for 20 min;
step four: supplementing water, namely spraying and supplementing water to the ore powder in the disc granulator, wherein the water supplementing amount is 5% of the weight of the ore powder;
step five: molding, namely supplementing ore powder in the disc granulator until the ore powder is granular, and maintaining the disc granulator to rotate for 10 min;
step six: screening, namely separating qualified ore powder particles from powder and large ore particles;
step seven: drying, namely drying the granular ore powder at the temperature of 700-800 ℃ for 30 min;
step eight: screening, namely screening the dried particles again, and packaging the ore powder particles after the ore powder particles are divided into three forms;
and step eight, wherein the three forms of the ore powder particles are 4-5mm, 2.5-3mm and 1mm respectively.
The rotation speed of the disk granulator is 10-15 rpm.
Example one, example eleven and example twelve controlled the replenishment of mineral fines to produce mineral fines in granular form and the particles bound were counted and rejected for greater than 5mm, yielding the following data:
| five steps for supplementing powder | Percent defective | |
| Example one | 100% | 0 |
| EXAMPLE eleven | 50% | 11% |
| Example twelve | 0 | 46% |
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. A granulation process of a soil conditioner is characterized by comprising the following steps:
the method comprises the following steps: grinding the calcined ore into powder, wherein the particle size of the ground powder is 700 meshes;
step two: prewetting, namely adding water with the weight being 10% of the weight of the ore powder into the ore powder, then adding an adhesive with the weight being 13% of the weight of the ore powder, adding a swelling agent with the weight being 2-3% of the weight of the ore powder, uniformly stirring, and then adding water with the weight being 10% of the weight of the ore powder;
step three: adding the uniformly mixed ore powder into a disc granulator, and rotating for 20 min;
step four: supplementing water, namely spraying and supplementing water to the ore powder in the disc granulator, wherein the water supplementing amount is 5% of the weight of the ore powder;
step five: molding, namely supplementing the mineral powder in the disc granulator until the mineral powder is granular, and maintaining the disc granulator to rotate for 10 min;
step six: screening, namely separating qualified ore powder particles from powder and large ore particles;
step seven: drying, namely drying the granular ore powder at the temperature of 700-800 ℃ for 30 min;
step eight: screening, screening the dried particles again, and packaging the ore powder particles after being divided into three forms.
2. The process of claim 1 for granulating a soil conditioner, wherein: the adhesive in the second step is a plant adhesive.
3. The process of claim 1 for granulating a soil conditioner, wherein: MgSO (MgSO) is added into the swelling agent 4 。
4. The process of claim 1 for granulating a soil conditioner, wherein: humic acid is added into the adhesive.
5. The process of claim 1 for granulating a soil conditioner, wherein: and in the step eight, the three forms of the ore powder particles are 4-5mm, 2.5-3mm and 1mm respectively.
6. The process of claim 1 for granulating a soil conditioner, wherein: the rotating speed of the disk granulator is 10-15 rpm.
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Effective date of registration: 20231114 Address after: 473000, 50 meters west of Baoshan Road, No. 5, Agricultural and Animal Husbandry Integrated Industrial Cluster Demonstration Zone, Weizi Town, Xinye County, Nanyang City, Henan Province Applicant after: Henan Yushuo Fertilizer Industry Co.,Ltd. Address before: Houzhai Village, Guangyang Town, Fangcheng County, Nanyang City, Henan Province 473000 Applicant before: Fangcheng Huayu fertilizer Co.,Ltd. |