How briquettes work - types and process

There are several different working principles of briquetting machines, which operate at different pressures and are suitable for different materials. So how do they work differently? What are their advantages and disadvantages? Briquetting machine suppliers for you to introduce

What is a briquette machine

Using a ball press to turn the waste powder into regular-shaped blocks helps to improve the condition of these powders, which is convenient for transportation and storage, and is more conducive to further utilization.

The briquette system is capable of handling a wide variety of materials of suitable size and moisture.

The briquetting work is always done with a binder because the raw particles need to be bonded to gain sufficient strength when turned into briquettes. Biomass and industrial waste sometimes differ from each other when briquetting due to the source of the binder used.

Types of coal briquettes and their working principles

screw type

The screw type briquetting machine uses an auger to press the raw material into it. According to different raw materials, a heating system can be added or not.

The heating system is specially designed for those briquettes handling materials containing lignin, which can always be found in biomass. So heating systems are usually used for biomass molding. Other materials such as coal, charcoal, etc. A binder is always required when briquetting with a screw briquetting machine.

The working principle of the spiral briquette machine

The suitable material is fed into the hopper and then conveyed by the screw inside the briquetting machine. A rotating screw takes material from the feed port and presses it against a die, which helps create a pressure gradient along the screw.

The finished briquettes are output from the end like a stick. The normal cross-sectional shape we usually find can be square, round, quincunx, etc.

Since the working pressure of the screw briquetting machine is not so high, a binder is always required when briquetting. Equipped with a heating system will help the biomass material to melt the internal lignin and convert it into a high-performance binder. In addition, other materials are also suitable for this briquette, such as coal, charcoal, etc. These materials should be thoroughly mixed with the binder to obtain the briquette form.

Screws of different materials and sizes Different screws

As a raw material that exhibits plasticity under high pressure, metal is especially suitable for hydraulic ball pressing machines.

Biomass brick forming machine forming system

The briquetting process works in a chamber into which the material is fed, and the material is briquetted under very high pressure. It causes their plasticity and holds them together stably as a block.

Compared with other types, the hydraulic type has a longer holding time for the briquette, allowing more elastic deformation to be converted into plastic deformation. Elastic deformation is an unstable deformation. After the pressure is relaxed, due to the presence of briquettes, its density gradually decreases. Transformation deformation can improve the quality of briquette to a certain extent. On the other hand, the longer the heat generated by the briquetting, the more stable the lignin bond. This results in better briquetting performance and briquetting quality.

How log generators work

The movement of the flywheel will generate a lot of pressure, and the briquettes will be punched again and again in a short time, so that the temperature of the raw materials will increase. As the raw material moves, it fractionates internally, creating another kind of heat—frictional heat. Under the action of these two kinds of heat, the temperature of the material itself rises to melt the lignin. The granular material then binds together and becomes sufficiently strong.

The briquette machine is a simple piston type coal machine, which also uses wheels, but the briquettes are only punched once to form.

Roller briquettes production process

According to different pressure requirements, the roller press can be designed into various types.

Ordinary roller presses use wedge irons or springs to hold the movable rollers in place while they work at low pressure. The hydraulic pump station can also be used to fix the drum, providing a larger but more flexible support for the drum, so that it can work stably under high pressure.

Choosing the right type, considering investment and equipment requirements, will help make the briquette business more efficient and produce high-quality briquettes. As a professional briquetting machine suppliers in China, Yuke Machine offers the best briquetting machine for wordlwide customers.