Screw type briquette machine is a kind of mechanical equipment used to press powdery or granular materials into blocks or rods. It is usually used to treat all kinds of biomass materials, such as sawdust, rice husk, straw, coconut shell, peanut shell, etc. These loose materials are mechanically compressed into high-density solid fuel-biomass briquette or stick fuel. Screw type briquette machine is widely used in the field of biomass energy because of its simple structure, convenient operation and high efficiency.

The working principle of screw type briquette machine mainly depends on the function of screw propeller. First, raw materials enter the machine through the feed inlet, and are sent to the screw propeller after pretreatment. The screw propeller pushes the raw materials into the compression cavity while rotating at high speed. Under the conditions of high temperature and high pressure, the raw materials is compressed and formed and discharged from the outlet. The whole process does not need to add any adhesive, and the raw materials can be molded through their own fiber binding force and compression.

Screw type briquette machine has the following advantages:

1. High efficiency and energy saving: the machine has low energy consumption and high production efficiency, and can press a large number of materials in a short time.

2. Environmental protection: the production process is smoke-free and dust-free, and the pressed fuel has less ash after combustion, which has less environmental pollution.

3. Wide application range: it can handle various types of biomass raw materials and meet the needs of different users.

4. Compact structure: the machine is small in size, occupies less area, and is easy to install and move.

However, the screw type briquette machine also has some limitations. For example, it requires high moisture content of raw materials, which generally needs to be controlled between 8% and 12%, otherwise it will affect the molding effect. In addition, the machine may wear and tear during long-term operation, which requires regular maintenance and replacement of parts.

In a word, the screw briquette machine is a kind of practical and environmentally friendly equipment, which plays an important role in the development of biomass energy. With the continuous progress of technology, its performance and application scope are gradually improved, which provides more possibilities for the utilization of renewable energy.