Production method of water-soluble fertilizer containing trace elements

A trace element, water-soluble fertilizer technology, applied in fertilizer mixtures, fertilization devices, applications, etc., can solve the problems of unstable properties of trace elements, self-decomposition changes, material loss, etc., and achieve the effect of reducing water-insoluble matter and residence time.

Inactive Publication Date: 2014-09-10
GUIGANG BATIAN ECOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Difficulties in adding trace elements to high-tower water-soluble fertilizers mainly include: ①The properties of trace elements are unstable, and they are prone to self-decomposition changes; ②The temperature is too high during the production process, causing the trace elements themselves to produce insoluble substances; Excessive time, resulting in material loss

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] a. Put 15 tons of pure ammonium nitrate and 5 tons of monoammonium phosphate with a content of 60% into the melting tank through the hoist for melting, and add 100kg of water, the melting temperature is 135°C, and discharge the melted eutectic slurry into the mixing tank In the system, this process is a continuous operation process.

[0034] b. The raw material monoammonium phosphate required for the production of compound fertilizer is continuously fed into the mixing system at a feed rate of 3 tons / hour and potassium sulfate at a feed rate of 6 tons / hour, and is quickly mixed with the eutectic slurry produced in step a and then enters the secondary mixing Equipment, add water-soluble compounds containing trace elements anhydrous zinc sulfate, anhydrous magnesium sulfate, anhydrous zinc sulfate and anhydrous magnesium sulfate are fed at a feed rate of 150kg / hour, after mixing evenly, emulsify to form an emulsified slurry. c. The emulsified slurry produced in step b is ...

Embodiment 2

[0036] a. Put 17 tons of blended fertilizer containing ammonium nitrate and 3 tons of monoammonium phosphate into the melting tank to melt, and add 100kg of water, the melting temperature is 145°C, and discharge the melted eutectic slurry into the mixing system.

[0037] b. The raw material potassium dihydrogen phosphate required for the production of compound fertilizers is continuously fed into the mixing system at a feed rate of 3 tons / hour and potassium sulfate at a feed rate of 5 tons / hour, and is quickly mixed with the eutectic slurry produced in step a and then enters the second stage Mixing equipment, adding water-soluble compounds containing trace elements anhydrous copper sulfate, anhydrous magnesium sulfate, anhydrous zinc sulfate and anhydrous magnesium sulfate are all fed at a feed rate of 150kg / hour, mixed evenly and emulsified to form an emulsified slurry.

[0038] c. The emulsified slurry produced in step b is granulated, cooled, screened, powdered and sprayed w...

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PUM

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Abstract

The invention discloses a production method of a high-tower type water-soluble fertilizer containing trace elements. The production method comprises the steps: adding an ammonium nitrate raw material and ammonium phosphate salts into water, melting with the melting temperature of larger than or equal to 135 DEG C and less than 150 DEG C, then mixing the co-molten material slurry after melting with fertilizers needed for production of the compound fertilizer, adding water-soluble trace element-containing compounds, after uniformly mixing, emulsifying to form an emulsion material slurry, granulating, and cooling to obtain the water-soluble fertilizer. The content of zinc is controlled in 500-700 ppm. The water-soluble fertilizer produced by the method has the advantages of uniform nutrients, smooth and round appearance, rapid dissolving speed and good water solubility, and allows water insoluble substances to be within 3.0%. The production method belongs to a novel, environmental-protection and low-energy-consumption production method for high-tower production of particle water-soluble fertilizers.

Description

technical field [0001] The invention belongs to the technical field of high-tower production of water-soluble fertilizer containing trace elements, and relates to a high-tower granulation production method of water-soluble fertilizer containing trace elements. Background technique [0002] The production of high-tower nitrosulfur-based water-soluble fertilizer uses molten ammonium nitrate or a mixture containing ammonium nitrate as the liquid phase, and the granulation temperature is high. At present, there are few products with trace elements added in high-tower nitro-based products. In the existing high-tower nitrosulfur-based production, because the temperature on the tower needs to be controlled at about 150°C-170°C, the temperature is relatively high, and trace elements are likely to cause side reactions after staying in the tower for too long, resulting in abnormal granulation And the product slag is too much, Contents of the invention [0003] In order to solve the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00
Inventor 黄德明唐潘翔陈燕文覃蕾宁
Owner GUIGANG BATIAN ECOLOGY
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