Compound fertilizer production method

A production method and technology of compound fertilizer, applied in the direction of fertilizer form, fertilizer mixture, fertilization device, etc., can solve the problems of waste of manpower, insufficient material fineness, workshop pollution, etc., achieve improvement of workshop environment, increase granulation temperature, fertilizer Yield improvement effect

Inactive Publication Date: 2019-06-21
SHANDONG LIANGYUAN BIOLOGICAL ORGANIC FERTILIZER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the typical production method of compound fertilizer by granulation method is to mix basic fertilizer raw materials containing nitrogen, phosphorus and potassium, and send them to a drum granulator for granulation. The granulated materials are directly sent to a drying kiln for drying. After drying, The material is cooled and sieved to remember qualified products. This method has disadvantages: the crushing effect is not good, the fineness of the crushed material is not enough, the cleaning of the crusher is cumbersome, a lot of manpower is wasted, and it will even cause parking, and the dust generated by the crusher and noise is not easy to deal with, causing workshop pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The basic fertilizers are added in the following quantities: 3.5 tons / hour of urea, 5 tons / hour of ammonium phosphate, 3 tons / hour of potassium chloride, 1.5 tons / hour of kaolin as filler, granulate after mixing evenly, dry, and sieve , of which the qualified example is 8 tons / hour, enter the packaging process, small particles 4 tons / hour, directly return to the granulation process to continue granulation, large particles 1 ton / hour, enter the melting tank, add water 0.2 tons / hour, use steam Indirect heating and melting to become fertilizer slurry, the concentration of the slurry is 83.3%, the temperature of the fertilizer slurry is 90°C, the fertilizer slurry is returned to the granulation process at an amount of 1.2 tons per hour, and the gas solid sprayed in the granulator Fertilizer surface, continue to granulate.

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Abstract

The invention relates to a fertilizer production method, particularly to a compound fertilizer production method, which comprises: adding base fertilizers according to a certain metering ratio, mixing, granulating, drying, sieving, cooling, and packaging, wherein the large fertilizer particles having the particle size of more than the particle size of the qualified fertilizer particles are heatedto form a suspension fertilizer slurry after the sieving, and the suspension fertilizer slurry as the return material returns to the granulating step, and is granulated with other solid base fertilizers. According to the present invention, with the production method, the granulation temperature can be increased, the energy can be saved, and the sphere forming rate can be improved.

Description

[0001] (1) Technical field [0002] The invention relates to a fertilizer production method, in particular to a compound fertilizer production method. [0003] (2) Background technology [0004] At present, the typical production method of compound fertilizer by pellet method is to mix basic fertilizer raw materials containing nitrogen, phosphorus and potassium, and send them to a drum granulator for granulation. The granulated materials are directly sent to a drying kiln for drying. After drying, The materials are cooled and screened to remember qualified products. This method has disadvantages: the crushing effect is not good, the fineness of the crushed materials is not enough, the cleaning of the crusher is cumbersome, a lot of manpower is wasted, and it may even cause parking, and the dust generated by the crusher And noise is not easy to deal with, causing workshop pollution. [0005] (3) Contents of the invention [0006] In order to make up for the deficiencies of the...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G5/00
Inventor梁东风赵金华陈鹏飞
OwnerSHANDONG LIANGYUAN BIOLOGICAL ORGANIC FERTILIZER