CN116042230A - Novel saline-alkali soil modifier - Google Patents
Novel saline-alkali soil modifier Download PDFInfo
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- CN116042230A CN116042230A CN202310104847.3A CN202310104847A CN116042230A CN 116042230 A CN116042230 A CN 116042230A CN 202310104847 A CN202310104847 A CN 202310104847A CN 116042230 A CN116042230 A CN 116042230A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/14—Soil-conditioning materials or soil-stabilising materials containing organic compounds only
- C09K17/16—Soil-conditioning materials or soil-stabilising materials containing organic compounds only applied in a physical form other than a solution or a grout, e.g. as platelets or granules
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2101/00—Agricultural use
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2109/00—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE pH regulation
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Organic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a novel saline-alkali soil modifier; the invention uses the calcium ions and the free sodium bicarbonate and sodium carbonate in the soil to generate calcium bicarbonate, calcium phosphate and aluminum sulfate which is easy to dissolve in water, and calcium-containing substances mainly take calcium to replace sodium ions as an improvement mechanism, and can exchange sodium ions adsorbed in soil colloid to transfer sodium ions along with water flow, thereby eliminating alkaline sources of the soil, improving soil properties, in addition, the increase of calcium ions can reduce the alkalization degree of the soil, reduce the pH value of the soil, promote the dissolution of carbonate in the soil, and simultaneously promote the formation of monomer aluminum or polymer aluminum ions generated after the hydrolysis of aluminum sulfate, thereby improving the structural quality of the soil, reducing the volume weight of the soil, increasing the porosity and the expansion degree of the soil, enhancing the permeability and the water holding capacity of the soil, improving the water holding and fertilizer holding performance of the soil, and creating good soil environment for salt leaching and crop growth.
Description
Technical Field
The invention relates to the technical field of saline-alkali soil amendments, in particular to a novel saline-alkali soil amendment.
Background
Saline-alkali soil is a kind of salt accumulation, and is characterized in that salt contained in the soil influences normal growth of crops, and according to incomplete statistics of textbook organizations and grain and agricultural organizations of united nations, the area of the saline-alkali soil is 9.5438 hundred million hectares worldwide, wherein the area of China is 9913 ten thousand hectares. The formation of alkaline earth and alkaline soil in China is mostly related to the accumulation of carbonate in the soil, so that the alkalinity is generally higher, plants in severe saline-alkali soil areas can hardly survive, the main harm of saline-alkali soil is that the survival and growth and development of crops are affected due to the excessive soluble salt content, and the soil fertility is not exerted due to a plurality of bad soil characters derived from the excessive salt content, and when the salt content of the soil exceeds one thousandth, the soil has an inhibition effect on the growth of crops. The more water-soluble ions in the soluble salt, the more they penetrate the cells of the crop, and the more harmful the crop. In order to solve the problems, a novel saline-alkali soil modifier is provided.
Disclosure of Invention
The invention aims to provide a novel saline-alkali soil modifier for solving the problems of the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the novel saline-alkali soil modifier is prepared from the following raw materials in parts by weight: 10-20 parts of gypsum, 10-20 parts of phosphogypsum, 10-20 parts of desulfurized gypsum, 5-10 parts of lime, 10-20 parts of aluminum sulfate, 5-10 parts of plant ash, 5-10 parts of green manure and 5-10 parts of weathered coal.
A novel saline-alkali soil modifier, which comprises the following steps:
step 1: pouring gypsum, phosphogypsum, desulfurized gypsum and lime into a grinder together for grinding, and then obtaining a powdery mixture I;
step 2: then, plant ash, green manure and weathered coal are poured into a grinder together for grinding, and a powder mixture II is obtained after grinding and mixing;
step 3: then pouring the white aluminum sulfate crystals into a grinder to grind into aluminum sulfate powder;
step 4: pouring the powder mixture I, the powder mixture II and aluminum sulfate powder into mixing equipment for fully mixing, so as to obtain a powder mixture III;
step 5: and pouring the powdery mixture III into a granulator so as to obtain finished product granules of the saline-alkali soil conditioner.
Preferably, in step 1, gypsum is a monoclinic mineral and is a hydrate whose main chemical component is calcium sulfate (CaSO 4).
Preferably, in step 1, phosphogypsum refers to solid waste residue generated when phosphorite is treated with sulfuric acid in phosphoric acid production, and the main component of phosphogypsum is calcium sulfate.
Preferably, in step 1, lime is an air-hardening inorganic cementing material with calcium oxide as a main component; lime is prepared by calcining raw materials with high contents of limestone, dolomite, chalk and shell calcium carbonate at 900-1100 ℃; has stronger alkalinity.
Preferably, in the step 1, the desulfurized gypsum is also called flue gas desulfurized gypsum, sulfur gypsum and FGD gypsum, and the main component is calcium sulfate dihydrate CaSO4.2H2O, and the content is more than or equal to 93 percent.
Preferably, in step 2, the plant ash fertilizer is the plant ash which is the ashes after the combustion of plants, so that the plant ash fertilizer is the mineral elements contained in plants, and almost all the plant ash contains.
Preferably, in the step 2, the green manure is a fertilizer prepared from green plants, and the green manure is a biological fertilizer source with complete nutrients and has great effect on improving soil.
Preferably, in the step 2, the weathered coal presents an acid street with larger substitution amount, and the physical and chemical properties of the soil are improved, so that the removal of salt, especially sodium ions, of the soil is facilitated, and the values of potassium ions, sodium ions, calcium ions and magnesium ions are reduced.
Preferably, in step 3, the aluminum sulfate white orthorhombic crystal system is crystalline powder, the density is 1.69g/mL, and the industrial product is in the form of off-white flakes, granules or blocks.
Compared with the prior art, the invention has the beneficial effects that: the invention uses the calcium ions and the free sodium bicarbonate and sodium carbonate in the soil to generate calcium bicarbonate, calcium phosphate and aluminum sulfate which is easy to dissolve in water, and calcium-containing substances mainly take calcium to replace sodium ions as an improvement mechanism, and can exchange sodium ions adsorbed in soil colloid to transfer sodium ions along with water flow, thereby eliminating alkaline sources of the soil, improving soil properties, in addition, the increase of calcium ions can reduce the alkalization degree of the soil, reduce the pH value of the soil, promote the dissolution of carbonate in the soil, and simultaneously promote the formation of monomer aluminum or polymer aluminum ions generated after the hydrolysis of aluminum sulfate, thereby improving the structural quality of the soil, reducing the volume weight of the soil, increasing the porosity and the expansion degree of the soil, enhancing the permeability and the water holding capacity of the soil, improving the water holding and fertilizer holding performance of the soil, and creating good soil environment for salt leaching and crop growth.
Detailed Description
The invention will now be described in more detail by way of examples which are illustrative only and are not intended to limit the scope of the invention in any way.
The invention provides a technical scheme that: the novel saline-alkali soil modifier comprises the following components in parts by weight:
10-20 parts of gypsum, 10-20 parts of phosphogypsum, 10-20 parts of desulfurized gypsum, 5-10 parts of lime, 10-20 parts of aluminum sulfate, 5-10 parts of plant ash, 5-10 parts of green manure and 5-10 parts of weathered coal.
A novel saline-alkali soil modifier comprises the following steps of;
step 1: pouring gypsum, phosphogypsum, desulfurized gypsum and lime into a grinder together for grinding, and then obtaining a powdery mixture I;
step 2: then, plant ash, green manure and weathered coal are poured into a grinder together for grinding, and a powder mixture II is obtained after grinding and mixing;
step 3: then pouring the white aluminum sulfate crystals into a grinder to grind into aluminum sulfate powder;
step 4: pouring the powder mixture I, the powder mixture II and aluminum sulfate powder into mixing equipment for fully mixing, so as to obtain a powder mixture III;
step 5: and pouring the powdery mixture III into a granulator so as to obtain finished product granules of the saline-alkali soil conditioner.
Embodiment one:
15 parts of gypsum, 15 parts of phosphogypsum, 15 parts of desulfurized gypsum, 10 parts of lime, 15 parts of aluminum sulfate, 10 parts of plant ash, 10 parts of green manure and 10 parts of weathered coal.
Pouring gypsum, phosphogypsum, desulfurized gypsum and lime into a grinder together for grinding, and then obtaining a powdery mixture I; then, plant ash, green manure and weathered coal are poured into a grinder together for grinding, and a powder mixture II is obtained after grinding and mixing; then pouring the white aluminum sulfate crystals into a grinder to grind into aluminum sulfate powder; pouring the powder mixture I, the powder mixture II and aluminum sulfate powder into mixing equipment for fully mixing, so as to obtain a powder mixture III; and pouring the powdery mixture III into a granulator so as to obtain finished product granules of the saline-alkali soil conditioner.
Embodiment two:
17 parts of gypsum, 13 parts of phosphogypsum, 15 parts of desulfurized gypsum, 10 parts of lime, 15 parts of aluminum sulfate, 10 parts of plant ash, 10 parts of green manure and 10 parts of weathered coal.
Pouring gypsum, phosphogypsum, desulfurized gypsum and lime into a grinder together for grinding, and then obtaining a powdery mixture I; then, plant ash, green manure and weathered coal are poured into a grinder together for grinding, and a powder mixture II is obtained after grinding and mixing; then pouring the white aluminum sulfate crystals into a grinder to grind into aluminum sulfate powder; pouring the powder mixture I, the powder mixture II and aluminum sulfate powder into mixing equipment for fully mixing, so as to obtain a powder mixture III; and pouring the powdery mixture III into a granulator to obtain finished product particles of the saline-alkali soil conditioner, wherein gypsum is monoclinic mineral, is hydrate of which the main chemical component is calcium sulfate (CaSO 4), and phosphogypsum is solid waste residue generated when the phosphorite is treated by sulfuric acid in the production of phosphoric acid, and the main component is calcium sulfate.
Embodiment III:
17 parts of gypsum, 13 parts of phosphogypsum, 17 parts of desulfurized gypsum, 10 parts of lime, 13 parts of aluminum sulfate, 10 parts of plant ash, 10 parts of green manure and 10 parts of weathered coal.
Pouring gypsum, phosphogypsum, desulfurized gypsum and lime into a grinder together for grinding, and then obtaining a powdery mixture I; then, plant ash, green manure and weathered coal are poured into a grinder together for grinding, and a powder mixture II is obtained after grinding and mixing; then pouring the white aluminum sulfate crystals into a grinder to grind into aluminum sulfate powder; pouring the powder mixture I, the powder mixture II and aluminum sulfate powder into mixing equipment for fully mixing, so as to obtain a powder mixture III; pouring the powdery mixture III into a granulator so as to obtain finished product particles of the saline-alkali soil modifier, wherein gypsum is monoclinic mineral, is hydrate of calcium sulfate (CaSO 4) serving as a main chemical component, phosphogypsum is solid waste residue generated when the phosphorite is treated by sulfuric acid in phosphoric acid production, and the main component is calcium sulfate, and lime is an air hardening inorganic cementing material taking calcium oxide as a main component; lime is prepared by calcining raw materials with high contents of limestone, dolomite, chalk and shell calcium carbonate at 900-1100 ℃; has stronger alkalinity, and the desulfurized gypsum is also called as smoke desulfurization gypsum, sulfur gypsum and FGD gypsum, and has the main component which is the same as natural gypsum and is calcium sulfate dihydrate CaSO4.2H2O, and the content is more than or equal to 93 percent.
Embodiment four:
15 parts of gypsum, 15 parts of phosphogypsum, 17 parts of desulfurized gypsum, 10 parts of lime, 13 parts of aluminum sulfate, 10 parts of plant ash, 10 parts of green manure and 10 parts of weathered coal.
Pouring gypsum, phosphogypsum, desulfurized gypsum and lime into a grinder together for grinding, and then obtaining a powdery mixture I; then, plant ash, green manure and weathered coal are poured into a grinder together for grinding, and a powder mixture II is obtained after grinding and mixing; then pouring the white aluminum sulfate crystals into a grinder to grind into aluminum sulfate powder; pouring the powder mixture I, the powder mixture II and aluminum sulfate powder into mixing equipment for fully mixing, so as to obtain a powder mixture III; pouring the powdery mixture III into a granulator so as to obtain finished product particles of the saline-alkali soil modifier, wherein gypsum is monoclinic mineral, is hydrate of calcium sulfate (CaSO 4) serving as a main chemical component, phosphogypsum is solid waste residue generated when the phosphorite is treated by sulfuric acid in phosphoric acid production, and the main component is calcium sulfate, and lime is an air hardening inorganic cementing material taking calcium oxide as a main component; lime is prepared by calcining raw materials with high contents of limestone, dolomite, chalk and shell calcium carbonate at 900-1100 ℃; the desulfurized gypsum is also called smoke desulfurization gypsum, sulfur gypsum and FGD gypsum, the main components are the same as natural gypsum, the content of calcium sulfate dihydrate CaSO4.2H2O is more than or equal to 93%, the plant ash fertilizer is mineral elements contained in plants because the plant ash is ashes after the combustion of the plants, the plant ash almost contains green plants, the green fertilizer is a biological fertilizer source with complete nutrients and has great effect on improving soil, weathered coal presents acid street with larger substitution amount, the physical and chemical properties of the soil are improved, the removal of salt content of the soil, especially sodium ions is facilitated, the value of potassium, sodium ions, calcium ions and magnesium ions is reduced, aluminum sulfate white orthorhombic crystal powder is formed, the density is 1.69g/mL, and the industrial product is in a gray flake shape, a granular shape or a block shape.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A novel saline-alkali soil modifier is characterized in that: the composite material is prepared from the following raw materials in parts by weight: 10-20 parts of gypsum, 10-20 parts of phosphogypsum, 10-20 parts of desulfurized gypsum, 5-10 parts of lime, 10-20 parts of aluminum sulfate, 5-10 parts of plant ash, 5-10 parts of green manure and 5-10 parts of weathered coal.
2. A novel saline-alkali soil modifier is characterized in that: the method comprises the following steps:
step 1: pouring gypsum, phosphogypsum, desulfurized gypsum and lime into a grinder together for grinding, and then obtaining a powdery mixture I;
step 2: then, plant ash, green manure and weathered coal are poured into a grinder together for grinding, and a powder mixture II is obtained after grinding and mixing;
step 3: then pouring the white aluminum sulfate crystals into a grinder to grind into aluminum sulfate powder;
step 4: pouring the powder mixture I, the powder mixture II and aluminum sulfate powder into mixing equipment for fully mixing, so as to obtain a powder mixture III;
step 5: and pouring the powdery mixture III into a granulator so as to obtain finished product granules of the saline-alkali soil conditioner.
3. The novel saline-alkali soil improver according to claim 2, wherein: in step 1, gypsum is a monoclinic mineral, and is a hydrate whose main chemical component is calcium sulfate (CaSO 4).
4. The novel saline-alkali soil improver according to claim 2, wherein: in step 1, phosphogypsum refers to solid waste residue generated when phosphorite is treated by sulfuric acid in phosphoric acid production, and the main component of phosphogypsum is calcium sulfate.
5. The novel saline-alkali soil improver according to claim 2, wherein: in the step 1, lime is an air hardening inorganic cementing material taking calcium oxide as a main component; lime is prepared by calcining raw materials with high contents of limestone, dolomite, chalk and shell calcium carbonate at 900-1100 ℃; has stronger alkalinity.
6. The novel saline-alkali soil improver according to claim 2, wherein: in the step 1, the desulfurized gypsum is also called as smoke desulfurization gypsum, sulfur gypsum and FGD gypsum, and the main component is calcium sulfate dihydrate CaSO4.2H2O, and the content is more than or equal to 93 percent.
7. The novel saline-alkali soil improver according to claim 2, wherein: in the step 2, the plant ash fertilizer is the plant ash which is burnt by plants, so that the plant ash fertilizer is mineral elements contained in plants, and almost all plant ash contains the mineral elements.
8. The novel saline-alkali soil improver according to claim 2, wherein: in the step 2, the green fertilizer is a fertilizer prepared from green plants, is a biological fertilizer source with complete nutrients, and has great effect on improving soil.
9. The novel saline-alkali soil improver according to claim 2, wherein: in the step 2, the weathered coal presents acid street with larger substitution amount, and the physical and chemical properties of the soil are improved, so that the removal of salt, especially sodium ions, of the soil is facilitated, and the values of potassium ions, sodium ions, calcium ions and magnesium ions are reduced.
10. The novel saline-alkali soil improver according to claim 2, wherein: in step 3, aluminum sulfate white orthorhombic crystal powder with density of 1.69g/mL is obtained in the form of off-white flakes, granules or blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310104847.3A CN116042230A (en) | 2023-02-13 | 2023-02-13 | Novel saline-alkali soil modifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310104847.3A CN116042230A (en) | 2023-02-13 | 2023-02-13 | Novel saline-alkali soil modifier |
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| Publication Number | Publication Date |
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| CN116042230A true CN116042230A (en) | 2023-05-02 |
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| CN202310104847.3A Withdrawn CN116042230A (en) | 2023-02-13 | 2023-02-13 | Novel saline-alkali soil modifier |
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- 2023-02-13 CN CN202310104847.3A patent/CN116042230A/en not_active Withdrawn
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