Compound silicon fertilizer for conditioning acid soil and preparation method of compound silicon fertilizer

An acid soil, silicon fertilizer technology, applied in the direction of potassium fertilizer, magnesium fertilizer, fertilizer form, etc., can solve the problems of poor crop absorption effect, unreasonable long-term use, promotion and application restrictions, etc., to shorten the roasting time and improve the fertilizer utilization rate. , the effect of reducing high energy consumption

Inactive Publication Date: 2017-11-07
南京索益盟检测技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main components of solid silicon fertilizer are crushed iron ore slag, blast furnace slag, fly ash, etc. Patent CN200310105447.7 introduces a production method for producing silicon fertilizer with coal gangue or fly ash and papermaking black liquor; patent 201610095703.6; but The solid silicon fertilizer made from slag has low effective silicon content, poor crop absorption effect, and unreasonable long-term use will harden the soil
Patent CN201510511638.6 introduces a preparation method of liquid silicon fertilizer. The main application is nano-scale silicon dioxide, which has a high cost. At present, the main component of liquid silicon fertilizer is organic chelated silicon, and its popularization and application is limited due to its high price.

Method used

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  • Compound silicon fertilizer for conditioning acid soil and preparation method of compound silicon fertilizer
  • Compound silicon fertilizer for conditioning acid soil and preparation method of compound silicon fertilizer
  • Compound silicon fertilizer for conditioning acid soil and preparation method of compound silicon fertilizer

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preparation example Construction

[0029] A preparation method of a compound silicon fertilizer for conditioning acidic soil, the preparation steps are as follows:

[0030] The first step: respectively pulverize potassium feldspar and dolomite with a pulverizer to make the particle size ≤ 3.0 mm, and dry to make the moisture content ≤ 5%;

[0031] Step 2: mixing potassium feldspar, dolomite and flux according to the ratio of parts by weight;

[0032] Step 3: Add 0.2-1 parts by weight of flux to the above ingredients, then add it into a double-screw mixer, stir and mix for 10-15 minutes to make it evenly mixed;

[0033] Step 4: Transfer the mixed ingredients into the shaft kiln, and bake at 700°C to 1100°C for 30 minutes, and quench the calcined silicon fertilizer clinker for 1 hour, and its pH is between 11 and 13;

[0034] Step 5: Stir and mix the prepared silicon fertilizer clinker in a double-screw mixer for 10 minutes, then pulverize it with a pulverizer, and then pass the material through a 100-mesh stand...

Embodiment 1

[0038] 1. Pulverize potassium feldspar and dolomite with a pulverizer to make the particle size ≤ 3.0mm, and dry to make the moisture content ≤ 5%;

[0039] 2. Potassium feldspar: dolomite is mixed according to the ratio of 50 parts by weight: 49 parts;

[0040] 3. Add 1 part by weight of flux to the above ingredients and add it to the ingredients, then add it to the double-screw mixer, and stir and mix for 15 minutes;

[0041] 4. Transfer the mixed ingredients into the shaft kiln, and bake at 1100°C for 30 minutes, and quench the calcined silicon fertilizer clinker for 1 hour, and its pH is about 12.6;

[0042] 5. Stir and mix the prepared silicon fertilizer clinker in a double-screw mixer for 10 minutes, then pulverize it through a pulverizer, and then pass the material through a 100-mesh standard sieve;

[0043] 6. Transfer the crushed and sieved mixed silicon fertilizer clinker to the granulation tray, spray the granulation binder solution to granulate into particles with...

Embodiment 2

[0064] 1. Pulverize potassium feldspar and dolomite with a pulverizer to make the particle size ≤ 3.0mm, and dry to make the moisture ≤ 5%;

[0065] 2. Potassium feldspar: dolomite is mixed according to the ratio of 60 parts by weight: 39.5 parts;

[0066] 3. Add 0.5 parts by weight of flux to the above ingredients and add it to the ingredients, then add it to the double-screw mixer, and stir and mix for 10 minutes;

[0067] 4. Transfer the mixed ingredients into the vertical kiln, and bake at 1100°C for 30 minutes, and then quench the calcined silicon fertilizer clinker for 1 hour, and its pH is about 12.8;

[0068] 5. Stir and mix the prepared silicon fertilizer clinker in a double-screw mixer for 10 minutes, then pulverize it through a pulverizer, and then pass the material through a 100-mesh standard sieve;

[0069] 6. Transfer the crushed and sieved mixed silicon fertilizer clinker to the granulation tray, and granulate it into particles with a particle size of 2-3mm thr...

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Abstract

The invention relates to the fields of vegetable fertilizers and soil improvement, and especially relates to a compound silicon fertilizer for conditioning acid soil. The fertilizer comprises, by weight part, 50-70 parts of potash feldspar, 30-50 parts of dolomite, and 0.2-1 part of a flux. The invention further discloses a preparation method of the compound silicon fertilizer. The invention provides a preparation method of an efficient compound silicon fertilizer, which is cheap in raw materials and low in production cost, and can improve crop production. Through reasonable matching of the raw materials, the fertilizer can condition the soil acidification degree and reduce heavy metal toxicity to the heavy metal.

Description

technical field [0001] The invention relates to the fields of plant fertilizer and soil improvement, in particular to a compound silicon fertilizer for conditioning acidic soil and a preparation method thereof. Background technique [0002] Because the acid deposition of industrial activities intensifies the natural acidification process in southern China, the acidification of soil in some southern regions is more serious, and the activity of heavy metals in the soil increases, resulting in increased pollution of heavy metals in the soil, and food security is challenged. [0003] As an alkaline fertilizer, silicon fertilizer can improve crop disease resistance and lodging resistance, increase the yield of agricultural products, improve the quality of agricultural products, and also improve the physical and chemical properties of acidic soil. Adding exogenous silicon to acidic soil can increase the soil's adsorption of heavy metals, thereby reducing the effectiveness of heavy...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05G5/00C05G3/80
CPCC05D1/00C05G3/80C05G5/12C05D3/00C05D5/00C05D9/00C05D9/02C05G3/00
Inventor 张亚楠周芬庄园唐海燕卢芳冯国勇
Owner 南京索益盟检测技术有限公司
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