Generally, biomass pellet machines can be divided into two types: flat die and ring die. In this article, we take the flat die as an example to introduce how the pellet machine works.
Flat Die Pellet Mill Structure
To understand how pellet machines work, we must first understand their structure.
- 1. Hopper — The hopper is the top part of the pellet machine, where the raw materials are loaded into the machine. As a reservoir, it holds the biomass feedstock before it goes into the pelletizer.
- 2. Pelletizing Chamber — The pelletizing chamber is the main working area of the pellet machine. Here, the pelletization process takes place using a flat die and rollers.
- 3. Flat Die — The flat die is a horizontal circular disc with many small holes drilled through it. Pellets are formed by forcing raw materials through these holes under high pressure.
- 4. Rollers — The rollers are usually mounted on top of the flat die and can move back and forth. As the die rotates, raw materials are pressed against the flat die, forcing them through the holes.
- 5. Pellet Cutter — It is a blade or knife-like component located near the pellet outlet. After pellets are extruded from holes in the flat die, the pellet cutter trims them to the desired length.
- 6. Discharge Chute — Once the pellets are cut to the appropriate length, they are discharged through a chute or outlet. Pellets are discharged into a collection container for further handling and storage.
- 7. Motor — Flat die pellet machines are typically powered by an electric motor or a diesel engine. As a result of the motor, the flat dies and rollers are driven, which enables pelletization to take place.
- 8. Control Panel Cabinet — The cabinet allows operators to adjust the pelletizing process, such as the feed rate or temperature.
- 9. Lubrication circulation oil pump — The lubrication circulation oil pump is an essential component of a pelletizer machine. It keeps the equipment’s moving parts lubricated to reduce friction and wear. It extends the equipment’s lifespan and ensures efficient operation.
Working Principle Of Flat Die Pellet Mill
Now that we understand the basic structure of a pellet machine, how does it actually work?
As the raw material enters the hopper, it falls between the rollers of the granulator and the flat die. A rotating die extrudes raw biomass through circular die holes and forms columnar particles under its extrusion. When the length of the columnar particles reaches a certain value, cutting is performed.
So, dense particles with uniform lengths and smooth surfaces are produced. This is the core working principle of the pellet machine.
Wood Pellet Machine Auxiliary equipment
For the production of pellets, the pellet machine is the core piece of equipment. Further, particle production requires auxiliary equipment like hammer mills, chipper mills, dryers, and dust collectors. It is only when these machines are combined into a small or large production line that efficiency is released. By doing so, household and industrial production needs will be met.
Using a production line to produce pellets
To produce biomass pellets, auxiliary equipment must be used. As a result, these equipments are organically combined to form a production line. Below is a diagram showing the structure of several production lines.
Please check out this article for more information about the production line. >> (Lemon Pellets Production Line)
safety matters
During the production process, you also need to pay attention to the following safety matters:
- The biomass pellet machine should use special equipment to store raw materials to ensure the dryness and cleanliness of the raw materials.
- During the production process, it should be ensured that operators have received professional training and are familiar with the operating procedures of the machine.
- During the production process, various system parameters and indicators of the biomass pellet machine should be checked regularly.
- During the production process, compressed air and lubricating oil that meets specifications should be used. Ensure the normal operation of the biomass pellet machine and extend the service life of the machine.
Wood Pelletizer Machine Working Video
Frequently Asked Questions
Is the production of biomass pellet machines safe?
- The biomass pellet machine uses electronic control systems and automation technology during the production process, which can achieve fully automated production and reduce workers’ labor intensity and safety risks.
- The biomass pellet machine is equipped with multiple protection measures, including a strict quality monitoring system, to ensure safety and stability during the production process.
- The biomass pellet machine has a variety of raw material adaptability and can handle various types of biomass raw materials, including straw, wheat straw, wood chips, coconut shells, etc.
Pellet Machine For Sales
If you are looking to buy your own pellet machine or a pellet machine production line, our machine is the one for you. There are many types of flat die and ring die pellet machines that our company produces, along with supporting equipment. No matter if you are producing wooden pellets or feed pellets, our products can meet your requirements. Contact Us now.