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Anti-blocking agent for nitro fertilizer and preparation method and application thereof

An anti-caking agent, nitro technology, applied in the application, organic fertilizer, inorganic fertilizer, etc., can solve the problems that mineral oil powder cannot be fixed well, easy to fall off, and the effect is general, so as to inhibit the agglomeration of nitro fertilizer, The effect of improving the ecological environment of farmland and reducing the loss of nitrogen nutrients

Active Publication Date: 2018-08-21
HUBEI FORBON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main carrier of powdery anti-caking agent is non-metallic mineral, which is not easy to be degraded by water and has a relatively large impact on the environment. At the same time, the inert powder has a general effect due to its poor adhesion.
[0008] 3. Problems in the application of anti-caking agent
[0009] Now nitro fertilizer manufacturers generally use the two-step method of oil + powder to wrap nitro fertilizer particles, although the effect of anti-caking is satisfied. At present, the big problem is that mineral oil powder cannot be well fixed on the particle surface, or It can’t be wrapped, or it’s easy to fall off after it’s wrapped. We often see the phenomenon of powder dropping and de-powdering on the surface of nitro fertilizer. In this case, the anti-caking and isolation effect of powder on nitro fertilizer will be greatly reduced, and the overall anti-caking effect The effect cannot be guaranteed, and petroleum products such as mineral oil and alkylamine can no longer meet the current environmental protection requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] For the anti-caking agent of nitro fertilizer, each component is calculated by mass percentage, and the anti-caking agent of nitro fertilizer consists of 20% of lime powder, 5% of nano-scale silicon dioxide, 75% of corn orange stalk, and said lime powder Content 96%, moisture 1.00%, D90 primary particle size is 10um, said nano-scale silicon dioxide content is 98%; D90 primary particle size is 80nm, said corn stalk moisture 2.0%, particle size D90 primary The particle size is 20um.

[0031] The preparation method of the anti-caking agent used for nitro fertilizers: take the lime powder in the proportion and use a modifier to wrap and modify the surface of the corn stalks in the silo to obtain the modified corn stalk powder. Perform surface secondary modification on the obtained modified corn orange stalk powder in the modification machine with the nano-scale silicon dioxide in the said ratio; after the modified powder obtained by the secondary modification is cooled to n...

Embodiment 2

[0035] For the anti-caking agent of nitro fertilizer, each component is calculated by mass percentage, and the anti-caking agent of nitro fertilizer consists of 25% of lime powder, 7% of nano-scale silicon dioxide, 68% of rape orange stalk, and said lime powder Content 97%, moisture 0.98%, D90 primary particle size is 20um, said nano-scale silicon dioxide has a content of 96%; D90 primary particle size is 100nm, said rape stalk moisture 1.8%, particle size D90 primary The particle size is 30um.

[0036] The preparation method of the anti-caking agent used for nitro fertilizers: take the lime powder in the proportion and use a modifier to wrap and modify the surface of rape stalks in a silo to obtain modified rape stalk powder. Perform surface secondary modification on the obtained modified rapeseed orange stalk powder in the modification machine with the nano-scale silicon dioxide in the said ratio; after the modified powder obtained by the secondary modification is cooled to ...

Embodiment 3

[0040] For the anti-caking agent of nitro fertilizer, each component is calculated by mass percentage, and the anti-caking agent of nitro fertilizer consists of 30% of lime powder, 10% of nano-scale silicon dioxide, 60% of cotton orange stalk, and said lime powder content 98%, moisture 0.96%, D90 primary particle size is 30um, the nano-scale silicon dioxide content is 96.5%; D90 primary particle size is 150nm, the cotton straw moisture 1.72%, particle size D90 primary The particle size is 50um.

[0041]The preparation method of the anti-caking agent used for nitro fertilizers: take the lime powder in the proportion and use a modifier to wrap and modify the surface of the cotton stalks in the silo to obtain the modified cotton stalk powder. Carry out secondary modification on the surface of the obtained modified cotton orange stalk powder in the modification machine with the nano-scale silicon dioxide in the said ratio; after the modified powder obtained by the secondary modifi...

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PUM

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Abstract

The invention discloses an anti-blocking agent for a nitro fertilizer and a preparation method and an application of the anti-blocking agent. The anti-blocking agent is characterized by comprising thefollowing components by mass percent: 20-30% of lime powder, 5-10% of nanometer silica, and 60-75% of natural plant straw, the sum of the various components is 100%, and the anti-blocking agent is prepared through secondary modification. When a product is used, a screw conveyer is used to evenly coat the product on the surface of nitro fertilizer granules. The anti-blocking agent for the nitro fertilizer forms a layer of diaphragm on the surface of the nitro fertilizer granule, the nitro fertilizer keeps loose for a long period of time and is excellent in mobility, and the quality of the nitro fertilizer is guaranteed.

Description

technical field [0001] The invention relates to the technical field of nitro fertilizer anti-caking treatment, in particular to an anti-caking agent for nitro fertilizer, a preparation method and application. Background technique [0002] 1. Overview of anti-caking agent [0003] Anti-caking agents are additives that promote good fluidity of fertilizers during storage and handling operations. In order to prevent fertilizer agglomeration, especially the agglomeration of nitro fertilizer is more serious, fertilizer manufacturers mainly adopt the method of coating anti-caking agent with nitro fertilizer while improving process conditions and controlling particle characteristics. When used, it can suppress the agglomeration, moisture absorption and pulverization of nitro fertilizers to the greatest extent, increase the fluidity of granules, and facilitate the storage, transportation and use of nitro fertilizers. Therefore, as a low-cost, high-yield anti-caking Blocking measure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/08C05G3/80C05G3/90
CPCC05D3/02C05G3/00C05G3/90C05G5/30C05G3/80C05D9/00C05F11/00C05G3/30
Inventor 王仁宗杨慧萍田楠李淑华
Owner HUBEI FORBON TECH