Pellets (fuel granules) are solid biofuel obtained from peat, wood waste and agricultural waste. They are cylindrical granules with a diameter of 6-8 mm and a length of less than 50 mm.

Additional information

Characteristic

Demand for pellets is growing in proportion to the prices of such traditional types of fuel as oil and gas. Also, the environmental friendliness of this type of fuel plays a significant role (during combustion, CO2 emissions are equal to the absorption of this gas during tree growth, the ash content is no more than 3%) and ease of use (easy and safe to transport, store, it is possible to automate the process of loading into boilers).

At the same time, to ensure high calorific value, the granules must remain dry (the moisture content of the granules is only 8-12%, while the moisture content of raw firewood is 30-50%). It is possible to ensure the dryness of the pellets, and additionally simplify transportation and storage for the consumer, by packing them in polyethylene bags.

Granules can be packed in bags both automatically and semi-automatically. The second method is less expensive in terms of purchasing expensive equipment, but requires constant and active human participation in the packaging process. With the automatic method, it is necessary to initially purchase expensive equipment (packaging machine), but in the future all operations will be performed automatically with a given accuracy. At the same time, the productivity of the machine significantly exceeds the productivity of the semi-automatic method.

Automatic packaging

For automatic pellet packaging, you need:

The pellets themselves (fuel granules). They can be in bulk (in bulk) or in big bags (large polyethylene containers weighing more than a ton). A big bag is already packaging, but this is industrial-scale packaging and is not suitable for ordinary consumers.
Polyethylene film in rolls. You can use other films, but polyethylene is the cheapest and most common material.
A packaging machine that will simultaneously form a package from a roll of film, dispense a set dose of pellets into such a package and seal (close) the package. Considering that, as a rule, packaging machines for packing in bags have a significant height, it may make sense to additionally equip the machine with a loading bucket conveyor ZT-1 (although no one excludes the possibility of manually loading pellets into the machine hopper). Also, for the removal of finished packages, the machine can be equipped with a discharge conveyor OT-1

The packing machines that can handle the packing of pellets in polyethylene bags are:

Packing machine with a volumetric dispenser for packing in bags AF-6-Ob
Packing machine with a weighing dispenser for packing in bags AF-6-V

Semi-automatic packaging

For semi-automatic pellet packaging you will need:

Accordingly, the set of equipment will be as follows:

Weigh batcher with belt feeder VLD-1 or Weigh batcher with vibratory feeder VDV-8 (depending on the productivity)
Floor horizontal sealer with pulse heating ZGI-500, ZGI-700
Floor sealer with pulse heating for making bags PKI-500
Regardless of the set of equipment, the operator will in any case need to fill the batcher hopper with pellets (manually or using a loading conveyor), place ready bags (in some cases, having previously made them) to the batcher, give a command to issue a dose, move the filled bags to the sealer and seal them.

Possibilities

up to 350 packs/hour

Type of packaging

package (pillow/standing)

Types of films

any