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Method for producing boron-containing diammonium phosphate product

A diammonium phosphate and product technology, applied in the field of ammonium phosphate fertilizer production, to avoid serious impact, reduce water content, and improve production capacity

Active Publication Date: 2012-06-13
WENGFU (GRP) CO LTD
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Problems solved by technology

Simultaneous decomposition

Method used

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  • Method for producing boron-containing diammonium phosphate product
  • Method for producing boron-containing diammonium phosphate product

Examples

Experimental program
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Embodiment

[0024] Both series of diammonium phosphate plants of Wengfu (Group) Co., Ltd. adopt this process to produce boron-containing diammonium phosphate products. The addition method is as follows:

[0025] First, calculate the amount of borax that needs to be added based on the current hourly production quantity and the amount of sprayed grout. The specific calculation method is as follows:

[0026] 60m according to the series of shotcrete 3 / h is the standard, then the product quantity produced is G=60×1.25=75t / h, the boron content in the product is set at 0.75%, and the total boron content is X=0.75%×75t / h,

[0027] Let X be the total amount of boron contained in the product per hour, and the amount of borax that needs to be added is Y,

[0028] Then X = Y×(10.811×4 / 291.37)

[0029] Calculated from the above formula as follows:

[0030] Y=X / (10.811×4 / 291.37)=0.75%×G / (10.811×4 / 291.37)

[0031] =3.79T / H

[0032] In the formula: G is the output of a single series per hour;

[0...

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Abstract

The invention discloses a method for producing a boron-containing diammonium phosphate product, relating a trace element fertilizer. The method comprises the following steps: (1) calculating the required additive amount of borax according to the spraying quantity; (2) adding a quarter of the required additive amount of borax in a granulator on a dry line to form reverts; (3) adding three quartersof the required additive amount of borax in a tubular reactor acid mixing tank, pumping into the tubular reactor to react with ammonia, and then carrying out coating granulation with the reverts in the granulator. According to the method, the vast majority of crystal water of borax forms steam and is pumped by a blower fan into a washing system, thus the water content of the product is reduced, the severe influence on the system caused by removing the crystal water by the product is avoided, and the production capacity of devices is increased. The method is suitable for manufacturers for producing boron-containing diammonium phosphate.

Description

technical field [0001] The present invention relates to phosphate fertilizer, also relates to trace element fertilizer, specifically, relates to the production method of boron-containing ammonium phosphate fertilizer. Background technique [0002] In diammonium phosphate products, adding the trace elements needed by plants to supplement the trace elements needed by plants can increase the yield of plants and improve economic benefits. [0003] The trace elements added to traditional diammonium phosphate products mainly include iodine, boron, cobalt, selenium, zinc, copper, iron, manganese, etc., while the traditional maximum amount of added boron is only about 0.5%. The addition method is mainly pure physical mixing method, and the additive is borax (Na 2 B 4 o 7 ·5H 2 O), that is, sodium borate pentahydrate, wherein the mass fraction of boron is 14.84%. There are two ways to add it: the first is to use the traditional return device to add it to the granulator to form t...

Claims

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Application Information

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IPC IPC(8): C05G1/00
Inventor 刘显波徐春肖升邓永达
Owner WENGFU (GRP) CO LTD
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