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Production method for producing granular integrated sulfenyl high nitrogen compound fertilizer by using roller

A technology of high-nitrogen compound fertilizer and production method, which is applied in the field of production of granular sulfur-based high-nitrogen compound fertilizer using rollers, can solve the problems of large labor force, low nitrogen content, and materials without chemical synthesis, and achieve cost Low, solve the effect of shelling of finished products

Active Publication Date: 2014-12-24
山东聊城鲁西硝基复肥有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the sulfur-based compound fertilizer products produced by drum equipment and spraying technology in China have relatively single nutrients, and the main components are 12% nitrogen, 18% phosphorus, and 15% potassium. crop needs
With the continuous improvement of people's demand for fertilization, the market share of sulfur-based 12-18-15 compound fertilizer has been declining year by year. Disadvantages such as high investment, unsynthesized materials, large labor force, and large storage of raw materials

Method used

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  • Production method for producing granular integrated sulfenyl high nitrogen compound fertilizer by using roller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1: A production method for producing granular integrated sulfur-based high-nitrogen compound fertilizer using rollers, such as figure 1 As shown, 600Kg of 12-18-15 compound fertilizer with a particle size of 1mm is heated to 50℃ to obtain compound fertilizer seed crystals, which enter the drum, and 388Kg of urea is heated to 120℃ and melted and transported to the urine storage tank. Add 12Kg of a mixture of zinc sulfate monohydrate and magnesium sulfate heptahydrate to the urine storage tank, mix and store, and then divide the urine-trace element mixture to 1.5m 3 / s speed is added to the drum, while 12-18-15 compound fertilizer enters the drum granulator as a seed crystal, and the mixed urine atomized by a spray gun with 3 high-pressure nozzles is evenly sprayed onto the compound fertilizer seed crystal On the formed material curtain, keep the distance between the material curtain and the edge of the material curtain and the edge of the atomization at 10cm, and t...

Embodiment 2

[0016] A method for producing granular integrated high-nitrogen compound fertilizer using a drum. After 400Kg of 12-18-15 compound fertilizer with a particle size of 4.2mm is heated to 80℃, the compound fertilizer seed crystal is obtained, which enters the drum and takes urea 95.2Kg is heated to 135°C and melted and transported to the urine storage tank. At the same time, 4.8Kg of sulfur, borax, and boric acid are added to the urine storage tank, mixed and stored, and then the urine-trace element mixture 3m 3 / s speed is added to the rotating drum, through the spray gun with 3 high-pressure nozzles atomization, the atomized mixed urine is evenly sprayed on the material curtain formed by the compound fertilizer seed crystal, keeping the edge of the material curtain and the material curtain The distance from the edge of the atomization is 30cm, and the angle between the liquid surface of the mixed urine and the horizontal plane is 30° to ensure the spraying effect. The crystalliza...

Embodiment 3

[0018] A production method of using a roller to produce granular integrated sulfur-based high-nitrogen compound fertilizer. After 700Kg of 12-18-15 compound fertilizer with a particle size of 2.2mm is heated to 65℃, the compound fertilizer seed crystal is obtained, which enters the drum and takes urea 288.5Kg is heated to 128℃ and melted and transported to the urine storage tank. At the same time, 11.5Kg of magnesium sulfate heptahydrate, sulfur, borax, boric acid, sodium octaborate is added into the urine storage tank, mixed and stored, and then the urine Liquid-trace element mixture with 2.2m 3 / s speed is added to the drum, through the spray gun with 3 high-pressure nozzles, the atomized mixed urine is evenly sprayed on the material curtain formed by the compound fertilizer seed crystal, keeping the material curtain and the edge of the material curtain The distance from the edge of the atomization is 20cm, and the angle between the liquid surface of the mixed urine and the ho...

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Abstract

The invention discloses a production method for producing a granular integrated sulfenyl high nitrogen compound fertilizer by using a roller. The production method comprises the following steps: feeding heated compound fertilizer granules into a rotary drum; meanwhile, adding trace elements into urea to form a mixed liquid; and wrapping the compound fertilizer by the mixed liquid in the rotary drum so as to form the compound fertilizer. The unshelling problem after wrapping in the existing industry is solved. By adjusting the indexes such as temperature, air quantity, pressure and coating time in the granulation process, the surface of the compound fertilizer and the urea mixture can be mutually combined, thereby being fully fused together, and thus the unshelling problem of a finished product is solved.

Description

Technical field [0001] The invention relates to a compound fertilizer production process, in particular to a production method of using a roller to produce a granular integrated sulfur-based high-nitrogen compound fertilizer. Background technique [0002] At present, the sulfur-based compound fertilizer products produced by drum equipment and shotcrete technology are relatively simple in nutrients. The main components are nitrogen 12%, phosphorus 18%, and potassium 15%. Especially the nitrogen content is low, which cannot meet various types of soils and various types of soils. The needs of crops. As people’s demand for fertilization continues to increase, the market share of sulfur-based 12-18-15 compound fertilizers has declined year by year. In order to meet the demand for fertilization, most domestic high-tower processes are currently used to produce high-nitrogen compound fertilizers. Shortcomings such as high investment, no chemical synthesis of materials, many labors, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00
Inventor 狄传胜徐树贵焦延涛董恩成高亮
Owner 山东聊城鲁西硝基复肥有限公司
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