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Production method of potassium sulfate fertilizer granules

A production method and technology of fertilizer granules, applied to potash fertilizers, inorganic fertilizers, fertilizer mixtures, etc., can solve the problems of many useless components, rough particle surfaces, and low strength

Active Publication Date: 2019-07-02
ZHENGZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common problem with this method is that there are many useless components that are not related to agricultural production, which reduces the effective components of the fertilizer and the strength is low.
[0010] Potassium sulfate is a brittle material. Potassium sulfate particles made with some binders are easily broken, and the surface of the extruded particles is rough and easy to wear

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] Embodiment 1: the production of potassium sulfate fertilizer granule

[0083] The implementation steps of this embodiment are as follows:

[0084] A. Potassium sulfate and red iron oxide pulverized

[0085] Potassium sulfate is added to a box dryer sold by Shanghai Experimental Instrument Factory Co., Ltd. under the trade name of electric blast drying oven, and dried at a temperature of 100°C for 120 minutes. It is determined according to the standard analysis method of potassium sulfate for agricultural use GB / T 20406-2017 , which has a water content of up to 10.0% by weight;

[0086] Xinxiang Shuangqing Pigment Co., Ltd. added iron oxide red pigment under the trade name to a belt dryer sold by Changzhou Jiuchuan Drying Equipment Co., Ltd. under the trade name Belt Dryer, and dried it at a temperature of 102°C for 100 minutes. Iron red pigment GB / T 1863-1989 standard analysis method is measured, and its water content is 9.6% by weight,

[0087] Then reduce their tem...

Embodiment 2

[0098] Embodiment 2: the production of potassium sulfate fertilizer granule

[0099] The implementation steps of this embodiment are as follows:

[0100] A. Potassium sulfate and red iron oxide pulverized

[0101] Potassium sulfate is added to a belt dryer sold by Changzhou Jiuchuan Drying Equipment Co., Ltd. under the trade name Belt Dryer, and dried at a temperature of 102°C for 100 minutes. According to the standard analysis method of potassium sulfate for agricultural use GB / T 20406-2017 determined to have a water content of 9.4% by weight;

[0102] The iron oxide red sold by Xinxiang Shuangqing Pigment Co., Ltd. under the trade name of iron oxide red pigment was added to the air dryer sold by Chengdu Baili Drying Equipment Co., Ltd. under the trade name of rotary drum dryer, and dried at a temperature of 105 ° C for 120 min , measured according to the standard analysis method of iron oxide red pigment GB / T 1863-1989, its water content is 9.2% by weight;

[0103] Then t...

Embodiment 3

[0114] Embodiment 3: the production of potassium sulfate fertilizer granule

[0115] The implementation steps of this embodiment are as follows:

[0116] A. Potassium sulfate and red iron oxide pulverized

[0117] Potassium sulfate is added to the airflow dryer sold by Chengdu Beili Drying Equipment Co., Ltd. under the trade name of rotary drum dryer, and dried at a temperature of 105 °C for 80 minutes. According to the standard analysis method of potassium sulfate for agriculture GB / T 20406-2017, Its water content reaches 9.8% by weight;

[0118] Iron oxide red sold under the trade name Iron Oxide Red Pigment by Xinxiang Shuangqing Pigment Co., Ltd. was added to a box-type dryer sold by Shanghai Experimental Instrument Factory Co., Ltd. under the trade name Electric Blast Dryer, at a temperature of 100°C Dried for 80min, measured according to the standard analysis method of iron oxide red pigment GB / T 1863-1989, its water content reached 10.0% by weight;

[0119] Then thei...

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Abstract

The invention relates to a production method of potassium sulfate fertilizer granules. The production method comprises the following steps: crushing potassium sulfate and iron oxide red, mixing potassium sulfate and iron oxide red, preparing a binder, and performing granulation. The potassium sulfate granulated fertilizer product produced by the method is uniform in particle size, round and tidy in particles and smooth in surface, and the particle strength reaches the national fertilizer requirement standard. The potassium sulfate fertilizer particles cannot be pulverized in the transportationand application processes, and can be used as a raw material of a compound fertilizer.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of fertilizer production. More specifically, the present invention relates to a method for producing potassium sulfate fertilizer granules. [0003] 【Background technique】 [0004] The main varieties of potassium fertilizer are potassium chloride and potassium sulfate, and there is also a small amount of potassium nitrate. Both imported and domestic potash fertilizers are mainly in powder form. Powdered fertilizer is not suitable for spreading, it is easy to dust and lose, and it is not easy to realize mechanized fertilization. At present, 40% of the world's potash fertilizer is processed into granular form. Compared with powdered fertilizers, granular fertilizers have better physical properties, no dust during loading and unloading, no agglomeration during long-term storage, good fluidity, easy to spread fertilizers, and can be mechanically fertilized. At the same time, they can also play a moder...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G1/00
CPCC05B17/00C05G5/12C05D1/02C05D9/02
Inventor 刘咏谭秀民化全县汤建伟张利珍王保明李好娜刘丽
Owner ZHENGZHOU UNIV
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