Method for producing granular potassium chloride

A production method and technology of potassium chloride, applied in the field of production method of granular potassium chloride, can solve problems such as nutrient distribution ratio limitation, and achieve the effects of low production cost, high content of potassium oxide, and convenient operation

Inactive Publication Date: 2012-09-26
HENAN LEEF FERTILIZER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Granular potassium chloride with lower nutrients, as a raw material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] DETAILED DESCRIPTION: The process method of the present invention is described through the following examples. However, the examples are not a limitation of the present invention.

Example Embodiment

[0020] Example 1

[0021] Preparation of the binder: Add 110 parts of acrylic emulsion with a solid content of 53% to a container with a stirring device, start stirring, add 50 parts of water, stir evenly, and then add 4 parts of benzyl alcohol and 3 parts of ethylene glycol. , 1 part of sodium benzoate, 8 parts of polyvinyl butyral. Stir evenly to obtain the binder.

[0022] This example is batch production. Add 1,000 kilograms of white powdered potassium chloride with a fineness of less than 60 mesh and 57% potassium oxide content into the disc granulator, spray 20 kilograms of the above-mentioned binder, and rotate in the disc granulator Granulated into balls. After drying, cooling and sieving, 930 kilograms of granular potassium chloride product was obtained, and the potassium oxide content in the product was 54.5%.

Example Embodiment

[0023] Example 2

[0024] Preparation of the binder: Add 130 parts of acrylic emulsion with a solid content of 53% into a container with a stirring device, start stirring, add 40 parts of water, stir evenly, and then add 5 parts of benzyl alcohol and 4 parts of ethylene glycol. , 1.5 parts of sodium benzoate, 9 parts of polyvinyl butyral. Stir evenly to obtain the binder.

[0025] This example is continuous production. Add pulverized red powdered potassium chloride with less than 60 mesh potassium oxide content of 60% into the drum granulator at 3000 kg / h, and spray the above-mentioned prepared binder at 100 kg / h. In the drum granulator, granulate into balls. After drying, cooling and sieving, a granular potassium chloride product with a particle size of 1 to 4.75 mm is obtained. Particles larger than 4.75 mm are pulverized and returned to the drum granulator, and particles smaller than 1 mm are returned directly to the granulator as returned material. The weight ratio of the ...

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Abstract

The invention relates to a method for producing granular potassium chloride and belongs to the technical field of manufacture of fertilizers. The method comprises the specific steps of preparation of a binder and pelleting of powdered potassium chloride; adding polyacrylic emulsion, whose solid content is 53%, in water in a container to uniformly agitate the polyacrylic emulsion and water, then sequentially adding benzyl alcohol, ethylene glycol, sodium benzoate and polyvinyl butyral in proportions, and fully and uniformly agitating the mixture. The process may be batch production or continuous production. If the process is batch production, the powdered potassium chloride is added to a disk pelletizer, and the binder is sprayed into rotary materials in proportion and pelletized into balls. The product is prepared by drying, cooling and sieving. If the process is continuous production, the powdered potassium chloride is added to a disk or rotary drum granulator; the binder is continuously sprayed into the rotary material in proportion and pelletized into balls, and the product is prepared by drying, cooling and sieving. The product is round and intact in particles, smooth in surface and high in strength. The product can be used as a bulk-blended fertilizer material. The top potassium oxide content of the product can be up to 59.5%.

Description

technical field [0001] The invention relates to a production method of granular potassium chloride, which belongs to the technical field of fertilizer manufacture, and specifically relates to a technical method for producing granular potassium chloride by using powdery potassium chloride as a raw material. Background technique [0002] Potassium chloride is the main variety of potassium fertilizer, and the vast majority of potassium fertilizers in my country use potassium chloride as a potassium source. There are two main types of potassium chloride: one is the potassium fertilizer mined from solid mines, containing 60% potassium oxide, usually red, commonly known as red potassium, and has low water content; the other is extracted from brine containing brine Potassium fertilizer is white, commonly known as white potassium, its potassium oxide content is about 54% to 60%, and usually has a high water content. [0003] White potassium and red potassium are generally in the fo...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05D1/02
Inventor 万亚珍张文辉谷守玉
Owner HENAN LEEF FERTILIZER
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