Many of Komatsu's self-propelled wood crushers and some overseas-made self-propelled wood crushers have computer-controlled safety devices and operating procedures, so electrical parts and electronic lines are attached to various parts. Has been done.

If you want to use the crusher immediately when you start work, but it does not work at all, there is no problem with the wood crusher itself, but the check function (circuit) for safe use causes trouble. Often there is.
In a wood crusher that processes and produces a large amount of wood chips, if the wood chips generated when the wood is crushed are left in a state of being accumulated inside the machine, the wood chips accumulated in the details will gradually rot.

The self-propelled wood crusher accumulates crushed wood chips everywhere.
The rot also rots the coating of electrical wiring and causes it to break.
If an important wire cord is broken, an error will occur in the circuit of the wiring part, so an error call will be displayed on the display and the wood crusher will not be able to operate.

Fires are the most common problem with self-propelled wood crushers.

There are several possible causes of fire that are likely to occur at wood chip production sites that use self-propelled wood crushers.

Spontaneous combustion
It is a phenomenon in which a pile of crushed chips ferments to generate heat and spontaneously ignite. When fermenting fallen leaves to make humus, the fermentation temperature rises to about 70 ° C at the maximum.

Discharge Belcon angle
When you expect the crushed chips to be loaded directly into the dump truck, you will want to make the slope of the discharge Belcon steep. If you try to secure a damping clearance of about 2.5 meters or more, the angle of the discharge conveyor will inevitably become tight. If the turnbuckle is squeezed and the slope is too steep, the tip may not flow well and may slip back to the base of the conveyor.

Chips may collect at the outlet near the crushing chamber and ignite from there.
Sparks due to metal injection
When metal is thrown in with wood, it may hit the drum violently in the crush and sparks may fly. The small fire falls into the wood chips and slowly burns and spreads.
Ignition from wood chips accumulated in the gap inside the heavy machine
Wood chips that have spilled from the crushing chamber and accumulated in the gaps inside the heavy machinery will rot and ferment, and will become hot and easy to burn.

small fires and heat-generating parts that fall into the scraps and chips often burn slowly while smoldering, so it seems that they may not notice it during work and may catch fire after a while.
 I think that fire is rarely used at the site of wood crushing. However, in the case of a self-propelled wood crusher that often uses a diesel engine for power or a hydraulic motor for crushing, the heavy machine itself also has heat, and the frictional heat during crushing causes the crushing rotor etc. to overheat. To go.
 Since it is a site that handles a large amount of flammable "wood", it is necessary to be careful about fire.

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