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Production method of high-concentration potassium chloride pellet

A manufacturing method and potassium chloride technology, applied in fertilizer mixtures, fertilization devices, applications, etc., can solve the problems of not being able to produce high-concentration round granular potassium chloride, achieve high pelleting pass rate, increase production, and have obvious market advantages Effect

Active Publication Date: 2014-02-05
HUBEI FORBON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the prior art cannot produce high-concentration round granular potassium chloride, and provides a method for producing high-concentration round granular potassium chloride using the agglomeration method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Add 20g of granulating agent to 10kg of potassium chloride with a nutrient content of 60, the fineness of potassium chloride is 70 mesh, and the components in the granulating agent are calculated by mass ratio, polyacrylamide: sodium silicate: borax =3:4:3, crushed and mixed evenly; send the mixture into the disc granulator, spray 1.3kg of water, granulate into balls, then dry and sieve, cool to room temperature, and obtain qualified granular chlorine Potassium chloride 8.5kg, particle size greater than 2mm and less than 4mm, nutrient content 60, strength 25N.

Embodiment 2

[0020] Add 30g of granulating agent to 10kg of potassium chloride with a nutrient content of 57, the fineness of potassium chloride is 90 mesh, and the components in the granulating agent are calculated by mass ratio, polyacrylamide: sodium silicate: borax =2:4:4, crushed and mixed evenly. Send the mixture into a disc granulator, spray 0.7kg of water, granulate into balls, then dry and sieve, cool to room temperature, and obtain 9.5kg of qualified granular potassium chloride, with a particle size greater than 3mm and less than 4.75mm , nutrient content 57, intensity 30N.

Embodiment 3

[0022] Add 500g of granulating agent to 100kg of potassium chloride with a nutrient content of 60, the fineness of potassium chloride is 110 mesh, and the components in the granulating agent are calculated by mass ratio, polyacrylamide: sodium silicate: borax =1:6:3, crushed and mixed evenly. Send the mixture to the drum granulator, spray 12.5kg of water, granulate into balls, then dry and sieve, cool to room temperature, and obtain 70kg of qualified granular potassium chloride, with a particle size greater than 2mm and less than 4mm, and the nutrient content 60, strength 35N.

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PUM

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Abstract

The invention discloses a production method of high-concentration potassium chloride pellets. The production method is characterized by comprising the following steps: uniformly mixing and crushing potassium chloride serving as a raw material and a pelleting agent, then enabling the mixture to enter agglomeration granulation equipment, carrying out agglomeration granulation according to a conventional agglomeration granulation technology, drying, cooling and sieving particles to obtain the high-concentration potassium chloride pellets, wherein the pelleting agent is a mixture of polyacrylamide, sodium silicate and borax, the weight of the pelleting agent accounts for 0.5%-5% of the weight of the potassium chloride raw material. The production method has the advantages that the strength of wet particles is improved by adding few pelleting agent under the condition of having no influence the nutrient content, so that the agglomeration granulation technology can be used for pelleting, and the defect that the prior art cannot be used for producing the high-nutrient potassium chloride pellets is overcome.

Description

technical field [0001] The invention relates to a method for producing granular potassium chloride, and in particular discloses a process for producing high-concentration round granular potassium chloride that does not affect the nutrient content of potassium fertilizers by using an agglomeration method. Background technique [0002] Potassium chloride is a very important type of potash fertilizer, mainly in powder and irregular granular shapes on the market. Because potassium chloride itself has no viscosity and plasticity and belongs to inorganic minerals, it is not easy to granulate by conventional methods, and it is very difficult to produce high-concentration round particle potassium fertilizers in the prior art. Using the existing agglomeration method to granulate and produce round granular potassium chloride requires adding a large amount of binder, which has the disadvantages of increasing costs and reducing the potassium oxide content of the product (Chinese patent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 孙刚忠王仁宗涂辉王应宗聂响亮
Owner HUBEI FORBON TECH
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