Flow process brief introduction

The food processing waste such as bagasse was crushed to 3-4mm by hammer mill.

The raw material with 40% moisture content is dried to about 15% through a three-layer roller dryer. Finally,

the granulation process is carried out. The diameter of finished particles is 6-10mm, which is optional.

After pelleting and cooling, the pellet is bagged into 20-50kg/bag, which is convenient to transport and sell.

The 5tph biomass granule which is made by food processing waste is about 920 kw,

covers an area of 1800 m2, contains raw material warehouse and finished products warehouse;

Biomass Pellet Production Line: The design of the whole line is compact, reasonable,

meets the requirements of environmental protection, and can be customized according to customer requirements.

Definition of granulation line of food processing waste

Taking food processing waste as raw material, through pretreatment and processing,

solidify and extrude it into high-density biomass pellet fuel. Biomass particle fuel does not contain sulfur or phosphorus.

When it burns, does not produce sulfur dioxide and phosphorus pentoxide, and will not cause acid rain,

does not pollute the atmosphere and the environment. As a new type of particle fuel, food processing waste granulation has won wide recognition.

Compared with the traditional fuel, it not only has the economic advantage but also has the environmental protection benefit, fully conforming to the sustainable development request.

Raw material

There are mainly coconut shells, bagasse, beer, potato skin, rice residue, etc.

Food processing waste granulation project flow process

Grinding process→drying process→pelleting process→cooling and bagging process

Grinding process

The grinding process of the complete set of food processing waste granulation projects is composed of

several auxiliary types of equipment such as the cyclone and the bag dust collector, without dust elimination in

this process. After the hammer mill, the fan sucks the air, and pneumatic transport the material.

The hammer mill is a water drop structure with high crushing efficiency.

The grinding rotor can be operated in a positive and negative ways to increase the service life of the hammer blade. 

Adopting the motor direct connection drive mode, the transmission efficiency is high, the maintenance is convenient.

Drying process

The drying process of the complete set of food processing waste granulation project is a three-layer drum dryer,

uses three return forms, covers a small land, with high drying efficiency, small heat loss, internal heat exchange rate in the dryer more than 90%.

The dryer heating supply is automatic feeding by pneumatic conveying equipment, not manual, reducing manpower cost.

After drying, the moisture content of sawdust is around 13-18%.

Pelleting process

Two sets of MZLH680 pellet mills are designed in the granulating process to produce 5tph.  The diameter of biomass particles is 6-10mm,

which is optional. and the biomass particles have the characteristics of high calorific value, no pollution, and low ash content,

which can be widely used in biomass power plants, biomass steam boilers, household fireplaces, drying furnaces, and biomass gasifiers.

The complete set of granulation projects of food processing waste has obvious advantages in the granulator process:

the granulator is equipped with a forced feeder, and the material is forced into the ring die chamber, which can make the granulator operate smoothly,

do not block and produce efficiently. Specially designed arch breaking screw conveyor, so that the bad fluidity material can be fed smoothly.

Cooling and bagging process

The cooling process of the complete set of food processing waste granulation projects is by using of cooler to reduce particle temperature and decrease grain moisture.

It is low energy consumption, easy operation, and a high automatic degree. The pellet aftercooler is not higher than room temperature 5 ℃,

pellet moisture after cooled is around 8-10%, particle density 650-750 kg/m3.

The bagging scale is according to the customer’s local sales needs, the appropriate packing scale is selected to facilitate the customer to sell products.

There are usually two specifications: small bag and ton bag. 20-50kg/bag for small bags, 500-1000kg/bag for ton bags.

The packing scale has a high automation degree, high packing accuracy, and the weighing system is a sensor measuring system with high sensitivity and strong anti-interference ability.