Detailed Explanation of Granular Bio-Organic Fertilizer Production Process and Process Equipment

 In the process, the livestock and poultry manure, ingredients, bacteria, etc. are sent to the fertilizer mixer in the specified ratio, mixed to make it uniform, and transported to the fermentation bed (trough, strip or tank) by conveyor or forklift It is fully fermented in the fermentation bed, then pulverized and loosened by a pulverizer, and then sent to the storage yard for secondary aging to increase activity, and then sorted and removed, and then processed into biological granular organic fertilizer through further processing and granulation procedures.

The characteristics of the process flow of the granular bio-organic fertilizer equipment:

(a) Using this equipment and technology to process livestock and poultry manure is not restricted by seasons and has low management costs.

(b) Livestock and poultry manure passes through the equipment and is immediately transformed into aerobic fermentation.

(c) Make full use of resources and "turn waste into treasure". The production of organic fertilizer has no odor and is a harmless treatment.

(d) It only takes about 10 days from the processing of livestock and poultry manure to the production of organic fertilizer, and the production cycle of organic fertilizer is short.

(e) Simple operation and convenient management.

Granular biological organic fertilizer process equipment. Livestock manure treatment equipment can process livestock and poultry manure into organic fertilizer in a short period of time, so it is also called organic fertilizer production equipment.

1) Granulation equipment. The composted materials need to undergo a granulation process to make them have a certain strength and shape before they can be used as organic fertilizers. The granulation process is a key process in the production of biological compound fertilizer, and its granulation quality is a key indicator of the compound quality.

(a) Fertilizers with very low water solubility usually need to be crushed into small particles to ensure that they are effectively and quickly dissolved in the soil and absorbed by plants.

(b) It is also very important to control the particle size of fertilizers with good storage and transportation performance. The increase in granulation with the improvement of fertilizer application equipment makes the storage and transportation performance of fertilizers greatly improved, so that it has better flow. Performance and advantages such as no agglomeration in granular products.

(c) In order to improve agronomic properties, another effect of particle size control is related to the slow release of nitrogen from certain insoluble components.

(d) In the early mixing operation, if the materials are mixed without considering the particle size, the mixed materials are easily separated (not mixed) during storage and transportation, which will affect the blending performance.

The granulation methods of the granular bio-organic fertilizer process mainly include agglomerate method, shotcrete method and extrusion method. According to the different structure of the granulator, the agglomeration method is divided into disc granulation and drum granulation. According to the position of the pressure roller (or die hole), the extrusion method is divided into roller extrusion granulation and flat die extrusion. Press granulation and ring die extrusion granulation.

a. Disc granulation. Disc granulation is currently the most used granulation method. The disc granulator has the following characteristics: it has a good classification effect and produces less coarse particles, so the granulation rate is greater than 90%, but it requires high material fineness and uniformity.

b. Drum granulation. Rotary drum granulation relies on temperature to increase the amount of liquid phase in the granulated material, which promotes the material to be granulated at a lower water content, which provides convenience for drying and saves energy. The granulation rate of drum granulation is low (4%～60%), and the amount of returned material is large.

c. Extrusion granulation. Extrusion is a volumetric compression process. There is no temperature rise in the whole process, no drying is required, and the work is convenient. The extrusion granulator has high granulation rate (close to 100%), high granule strength, basically no return material, and the granule shape is not smooth.

d. High-efficiency and new type of special granulation method for organic fertilizer. The granulation equipment was developed in recent years, mainly for the pelletizing and granulation of organic materials. The advantage of the process is to break through the lack of shape and hardness of organic matter after granulation. The organic matter that needs to be granulated after fermentation does not need to be dried, and no binders are needed to directly produce spherical particles with a certain solidity and beautiful appearance. There is no special effect on organic matter. Upon request, spherical organic granular fertilizer can be produced. It can be fermented chicken manure, pig manure, cow manure, rice straw, various dregs, agricultural and urban organic solid waste, etc., and can also be added with N, P, K to make organic-inorganic compound fertilizer as required. It is the ideal equipment for granulating organic fertilizer.

2) Sorting equipment-screening. After the compost is fully fermented and decomposed, to prepare products that meet the national agricultural standards, the precision of the compost must be improved through fine screening. Vibrating screens, relaxation screens, elastic separators and electrostatic separators can be used. Generally, the moisture content of the matured materials is required to be less than 35%.

a. Vibrating screen. The vibrating screen is a machine that uses the principle of vibration for screening. Generally, the moisture content of materials is less than 30%, and the garbage with high fiber content is not suitable for selection.

In the deep processing stage, in addition to the above-mentioned equipment, there is also supporting equipment. If necessary, you can go to FPC granular bio-organic fertilizer equipment manufacturer for on-site inspection and test machine.