In the production of biomass briquettes, the blocking of biomass briquetting press is a common and headache problem. Blocking not only affects production efficiency, but also may damage equipment and increase maintenance costs. This paper will briefly analyze the main reasons for the blocking of biomass briquette machine, and provide solutions to help you improve production stability.

The main reason of blocking material of biomass briquette machine

Raw material moisture is not suitable.

The moisture content of raw materials is the primary factor leading to blocking. Too high water content (> 20%) will lead to fiber softening, insufficient extrusion force, and the material cannot be molded; If the moisture content is too low (< 10%), the friction force will increase, and the mold will be seriously heated and easily stuck. Especially in the rainy season or when raw materials are not fully aired, the problem is particularly prominent.

Uneven particle size of raw materials or impurity mixing.

Too long raw materials or fiber winding will form a “bridge” phenomenon at the feed inlet, which will affect the material flow; Particles are too thick to enter the die hole, resulting in local accumulation. In addition, impurities such as stones and metals will directly block the mold.

Equipment and operation problems. 

Too fast feeding speed, mismatch between die compression ratio and raw materials, insufficient lubrication and other operational or equipment problems may also lead to material blockage. For example, pressing straw with sawdust mold will cause blockage due to unsuitable compression ratio.

Treatment method of blockage

In case of material blockage, stop the machine immediately and handle it according to the following steps:

Stop and cut off power to avoid motor overload damage;

Clean that deposits on the surface of the mold and the fee inlet;

Use special tools to dredge the die hole;

Check the wear of the mold and replace it if necessary;

Adjust the moisture and particle size of raw materials before restarting.

Solutions to prevent material blockage

Control raw material moisture. 

Establish a drying field or use drying equipment to ensure that the moisture content of raw materials is 12%-18%. Equipped with moisture analyzer to achieve accurate management.

Optimize raw material treatment. 

Use crusher or slicer to ensure uniform particle size of raw materials. Add iron remover to prevent metal impurities from entering the equipment.

Scientific operation and equipment selection. 

Frequency conversion feeding is adopted, and the feeding speed is automatically adjusted according to the current. Select the appropriate compression ratio of the mold according to different raw materials. Maintain the equipment regularly to ensure the normal operation of lubrication and parts.

Choose the right equipment, get more bang for your buck​

Equipment selection is the key to prevent material blockage. According to the production demand, choose the appropriate power and functional configuration, for example, diesel engine is suitable for field operation, and multifunctional briquette machine is suitable for mixed production of various raw materials.

Summary

The stable operation of biomass briquetting machine is very important for production efficiency. By scientifically managing raw materials, optimizing equipment and standardizing operation, the problem of material blockage can be effectively reduced and the reliability of production line can be improved. If you have requirements for equipment selection or production line optimization, please contact us and we will customize the exclusive solution for you!