Organic fertilizer production method and special equipment thereof

Abstract

The invention relates to an organic fertilizer production method and special equipment thereof, which are mainly applied to the production of organic granulated fertilizers and organic-inorganic mixed granulated fertilizers. The method comprises the following steps of: mixing; stirring; fermenting in a windrow mode; turning over; maturing; drying; roughly pulverizing; screening; fine pulverizing;dispensing; pelletizing; drying; cooling; screening in stages; and finally, preparing special fertilizers, organic fertilizer agents, organic finished fertilizers, and the like. In the invention, thedrying temperature of the whole production process is controlled to be 60-70 DEG C, and the drying humidity is controlled to be 30-35 percent to ensue that most microorganisms can be keep alive, thusthe biological fertilizer efficiency is obvious; a special fine pulverizer is used and can be used for pulverizing when the water content of the fertilizer is 30-40 percent, thereby the production efficiency is improved by 10 times; and the fertilizer pulverizing quality is greatly improved, and pulverized fertilizer granules can be controlled to be below 1mm.

Description

(1) Technical field [0001] The invention relates to an organic fertilizer production method and special equipment thereof. It is mainly used in the production of organic granular fertilizers and organic-inorganic mixed granular fertilizers. (2) Background technology [0002] Fertilizers on the market are usually divided into special fertilizers, ordinary fertilizers (powder), ordinary fertilizers (granules), coated fertilizers and BB fertilizers (also called blended fertilizers). [0003] The production process of granular fertilizer directly affects the production efficiency and quality of fertilizer. The traditional fertilizer production process is usually: batching→stirring→disk granulation→twice high-temperature drying (complete drying)→screening→qualified products are graded and packaged in storage→unqualified products→enter the pulverizer for re-crushing and then enter the next step cycle. There are following deficiencies in this kind of technology: [0004] 1. Aft...

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Problems solved by technology

[0005] 2. Fertilizer granules adopt the traditional disc granulation process, and the granulation quality and granulation efficiency are poor

[0006] 3. Due to the poor quality of granulation, a large amount of coarse material needs to be further crushed during fertilizer screening, and the production efficiency is low. At the same time, the granulation quality of the recycled material is obviously reduced when the recycled material is granulated again.

[0007] 4. The use of ordinary pulverizers, mainly through ring grinding granulation or flat grinding granulation or throwing sieve, etc., is prone to block the passage during pulverization, resulting in failure and shutdown, etc. At the same time, this process has large dust and noise, and serious environmental pollution

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