What are the requirements for wood chipper equipment to crush wood?

When wood chipper equipment is crushing wood, it needs to meet a series of requirements to ensure the normal operation, production efficiency and safety of the equipment. The following is a detailed summary of these requirements:

1. Pretreatment of wood raw materials

Debarking: For specific uses such as paper mills, wood must be peeled before processing, because wood with skin will affect the quality and use of wood chips.

Uniform size: The diameter of the wood raw materials should be kept as uniform as possible to avoid poor feeding or equipment blockage. Too thick wood may cause feeding difficulties, and too thin wood will also reduce the production efficiency of the equipment if the feeding speed cannot keep up.

Curvature treatment: Excessive curvature of wood may reduce the feeding speed. Therefore, before feeding, the wood with excessive curvature can be treated to reduce its curvature so that the chipper can eat better.

Moisture content control: The moisture content of wood should not be too high, because after the wood material with high moisture content enters the crushing chamber, the small pieces are sticky and easily stuck between the two jaws in the crushing chamber, causing material clamping and affecting the output of the chipper. It is recommended that the raw wood be aired for 3 to 7 days after felling before being processed by the chipper.

Impurity removal: The wood should not be mixed with impurities such as wire, nails, and stones, which may damage the blades of the chipper or cause other malfunctions.

Chipper operation requirements

Safety inspection: Before the chipper works, the lubrication of each component and the reliability of the safety device should be carefully checked to ensure that the equipment is in good working condition.

Feeding speed: The feeding speed should be kept uniform. Too fast or too slow will affect the performance and output of the chipper. Feeding too fast may cause equipment blockage or motor burnout, while feeding too slow will lead to a decrease in output.

Belt tightness: The belt tightness should be moderate. Too tight will increase the friction area, causing the bearing temperature to rise and damage; too loose will cause the chipper to have insufficient crushing efficiency and cause feed blockage.

Equipment cleaning: The machine tool should be kept clean, the safety devices of the rotating parts should be complete and reliable, and the grounding wire should be good. The screws, nuts and fasteners of each part must not be loose, and no debris is allowed on the tool table.

Fire-fighting measures: The storage and processing sites of wood should be equipped with complete fire-fighting equipment, and ensure its reliability and ease of use. Open flames and smoking are prohibited in the workplace, and flammable materials and oily cotton yarn should not be placed near wood.

Wood chip specification requirements

For certain specific uses (such as paper mills), there are certain requirements for the specifications of wood chips. For example, the thickness of the wood chip may be between 0.3 and 0.5 cm, the length between 2 and 5 cm, and the width between 3 and 8 cm. These specifications may vary depending on the use and manufacturer.

When wood chippers are used to break wood, they need to meet many requirements, including the pretreatment of wood raw materials, the chipper operation requirements, and the wood chip specifications. Meeting these requirements will help improve the production efficiency, safety, and product quality of the equipment.