Spherical potassium chloride particle and preparation method thereof

A production method and potassium chloride technology are applied in the directions of alkali metal chlorides, potash fertilizers, inorganic fertilizers, etc., and can solve the problems of irregular large particles with polygonal appearance, unfavorable uniform absorption of crops, easy generation of damage and powder, etc. The effect of mechanical fertilization is good in layers, improves the feeding fluency, and is beneficial to storage.

Inactive Publication Date: 2010-08-04
JILIN BODA POTASSIC FERTILIZER
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Potassium chloride is a powdery chemical fertilizer with a particle size of 70 mesh. In principle, it is not suitable for direct application. It is mostly used as a compound fertilizer after being made into granules and composed of nitrogen fertilizer and phosphate fertilizer. Now potassium chloride is made of powdery powder. The method of producing granules is generally more common in the method of extruding into flakes and then crushing. Use the pressure of 7-9Mpa to go through the extruder, extrude into flakes and then crush it by the grinder. Choose 2-6mm The left and right irregular particles are mixed with nitrogen and phosphorus fertilizers; the output is extremely low, taking the 360-type extrusion granulator as an example, the general production capacity is 0.6-0.8 tons per hour, and the granulation rate is only 50%-60%. Moreover, the particles formed after extrusion and crushing are irregular in shape, and the slow-release effect is poor, which is not conducive to the uniform absorption of crops, and the fertilizer effect time is short
[0003] Moreover, the traditional potash fertilizer processing technology is to squeeze potassium chloride powder potassium into irregular particles, but this kind of potash fertilizer pellet production process has many disadvantages, such as irregular large particles with angular appearance, during storage and transportation, It is easy to produce powder, so that the qualifie

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  • Spherical potassium chloride particle and preparation method thereof
  • Spherical potassium chloride particle and preparation method thereof

Examples

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Embodiment 1

[0032] The purpose of this example is to change the traditional granulation production method of potassium chloride, and change the irregular particles into spherical materials with smooth surface and high hardness, so as to make it a fertilizer with good slow-release effect, so as to facilitate more effective absorption by crops .

[0033] A kind of potassium chloride spherical particle of the present embodiment, it comprises the spherical particle that is made with potassium chloride powder potassium as main raw material as matrix, and described matrix appearance is white or red, and its surface particle is round, uniform, High hardness, its hardness is far better than irregular potassium chloride particles, the average hardness can reach 15-20 Newtons; its mechanical application level is good, which is conducive to storage, handling and transportation.

[0034] In the present embodiment, the diameter of the matrix is ​​2.5mm-5.5mm, and the elements in the matrix also includ...

Embodiment 2

[0036] In the present embodiment, the matrix is ​​red or white fine crystals, which include sodium chloride, moisture, calcium, magnesium and sulfate radical matrix, by weight percentage, in the matrix: potassium chloride is 96.0%, moisture is 2% , Sodium chloride is 2.0%, calcium is 0.3%, magnesium is 0.2%, and sulfate is 0.72%.

[0037] Undescribed parts are the same as the examples.

[0038] see figure 1 , above-mentioned two embodiment manufacturing methods, its method steps are as follows:

[0039] (1) raw material configuration; will be 98.0% by potassium chloride, sodium chloride is 1.2%, calcium is 0.1%, magnesium is 0.05%, sulfate radical is 0.25%, moisture is 2%; Or potassium chloride is 96.0 %, water content is 2%, sodium chloride is 2.0%, calcium is 0.3%, magnesium is 0.2%, and sulfate radical is the proportioning of 0.72% to carry out potassium chloride raw material configuration.

[0040] (2) Grinding and grinding; send the prepared potassium chloride raw mate...

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Abstract

The invention discloses a spherical potassium chloride particle and a preparation method thereof, which changes the traditional potassium chloride particle preparation method and changes irregular particles into spherical materials with smooth surface and high rigidity. The spherical potassium chloride particle takes a spherical particle with smooth surface which is prepared from potassium chloride raw materials as a base body; the diameter of the base body is 2.5mm-5.5mm; and according to the weight percent, the content of water in the base body is 0.1-2%. The method comprises the following steps: (1) raw material smashing and grinding; (2) raw material molding; (3) raw material curing; (4) raw material drying; and (5) classification screening and packaging. The invention has reasonable and concise process and high yield; when the production capacity of each production line is calculated to be about 6-8 tons, the yield of the method is 9-10 times of that of the extruding molding method, thereby improving the production efficiency of an enterprise and the accuracy of BB fertilizer production proportion, unifying the appearances of three fertilizers in the BB fertilizer, and lowering the production cost and the possibility of generating dust during production and application; and compared with the irregular particles, the spherical potassium chloride particle is more suitable for mechanical application, has good sustained release, enables crops to absorb nutrient more evenly, and is more beneficial for the growth of the crops.

Description

Technical field: [0001] The invention relates to a fertilizer granule and a manufacturing method thereof, in particular to a potassium chloride fertilizer granule used as a crop fertilizer and a manufacturing method thereof, belonging to the technical field of fertilizers. Background technique: [0002] Agricultural potassium chloride is a commonly used potassium fertilizer, which is mostly used for field crops. Potassium chloride is a powdery chemical fertilizer with a particle size of 70 mesh. In principle, it is not suitable for direct application. It is mostly used as a compound fertilizer after being made into granules and composed of nitrogen fertilizer and phosphate fertilizer. Now potassium chloride is made of powdery powder. The method of producing granules is generally more common in the method of extruding into flakes and then crushing. Use the pressure of 7-9Mpa to go through the extruder, extrude into flakes and then crush it by the grinder. Choose 2-6mm The le...

Claims

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Application Information

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IPC IPC(8): C05D1/02C01D3/04
Inventor 王尔娜
Owner JILIN BODA POTASSIC FERTILIZER
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