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Slurry regulating process of preparing multicomponent composite fertilizer

A technology of compound fertilizer and slurry, which is applied in the direction of fertilizer mixture, fertilizer form, fertilization device, etc., to achieve the effect of improving enterprise benefit, uniform content, and reducing production cost

Inactive Publication Date: 2003-03-19
曾繁威 +1
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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 shortcomings of the existing dry solid-phase mixing process. The inventor has collected decades of experience in fertilizer production and through repeated experiments, provides a method for preparing multi-component compound fertilizer by conditioning slurry

Method used

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  • Slurry regulating process of preparing multicomponent composite fertilizer
  • Slurry regulating process of preparing multicomponent composite fertilizer
  • Slurry regulating process of preparing multicomponent composite fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] according to figure 2 According to the technological process, 1000 kilograms of popular compound fertilizers are prepared. The specific operation steps are as follows:

[0025] (1) Preparation of dihydrogen phosphate slurry: get the following material in parts by weight and add it to the neutralization compound tank ("single tank single paddle large circulation extraction mixing reaction tank" for another utility model patent application), stir at normal temperature After reacting for 3-5 hours, 350-550 kg of dihydrogen phosphate slurry was obtained.

[0026] Sulfuric acid (98%) 500

[0027] Phosphate rock powder (≤28%) 1000---1500

[0028] Water 2000---3000

[0029] Optimized: Sulfuric acid (98%) 500

[0030] Phosphate rock powder (≤28%) 1100---1400

[0031] Water 2200---2600

[0032] Optimum: Sulfuric acid (98%) 500

[0033] Phosphate rock powder (≤28%) 1250

[0034] Water 2500.

[0035] ...

Embodiment 2

[0049] according to figure 2 The technical process for preparing 1000 kg of compound fertilizer for field crops. What is different from embodiment one is that step (2) proportioning is changed into:

[0050] Dihydrogen phosphate slurry 300--520 Ammonium chloride 300-500

[0051] Potassium chloride 70--250 Trace elements <5

[0052] Optimized: Dihydrogen Phosphate Slurry 350-450 Ammonium Chloride 350-450

[0053] Potassium chloride 175-220 trace elements a small amount

[0054] Optimal: Dihydrogen Phosphate Slurry 514 Ammonium Chloride 400

[0055] Potassium Chloride 81 Trace Elements 5.

[0056] Other steps are the same as in Example 1 to obtain the product compound fertilizer for field crops.

Embodiment 3

[0058] according to figure 2 According to the technological process, 1000 kilograms of tobacco compound fertilizers are prepared. What is different from embodiment one is that step (2) proportioning is changed into:

[0059] Dihydrogen phosphate slurry 280-480 Urea 100-224

[0060]Potassium sulfate 370-570 Trace element small amount

[0061] Optimized: Dihydrogen Phosphate Slurry 320-430 Urea 130-170

[0062] Potassium sulfate 420-520 Trace elements <5

[0063] Optimum: dihydrogen phosphate slurry 465 urea 220

[0064] Potassium sulfate 310 Trace elements 5

[0065] Other steps are still the same as in Example 1 to obtain the product tobacco compound fertilizer.

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Abstract

The production process of multicomponent composite fertilizer is prepared through preparing material fertilizer slurry, mixing, inspection, regulating and pelletizing. The composite fertilizer has homogeneous composition, high strength and low production cost and may be produced based on the requirement of special agricultural technology and soil condition.

Description

technical field [0001] The invention belongs to a method for preparing fertilizers, in particular to a method for preparing multivariate compound fertilizers by conditioning slurry. Background technique [0002] The prior art prepares multivariate compound fertilizer such as figure 1 As shown, the calculated amount of solid-phase nitrogen fertilizer, phosphate fertilizer, potassium fertilizer and solid-phase binder (usually white mud powder) are mixed evenly in a mixer, and then enter into a ball forming pan and granulate with clean water, and then dry and sieve Divide into nitrogen, phosphorus and potassium ternary compound compound fertilizer. Except that the total amount of nitrogen, phosphorus and potassium of the fertilizer prepared by the method can reach the national standard (>25% by weight), other multiple indexes are difficult to meet the national standard. The most prominent thing is that the component content of each particle of the product varies greatly, espe...

Claims

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Application Information

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IPC IPC(8): C05B11/08C05G1/00C05G5/00
Inventor 曾繁威马宗超
Owner 曾繁威
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