Grinding slice of defibrator
A technology for thermal mills and grinding discs, applied in the field of grinding discs for mills, can solve the problem that it is difficult to flow into the rough grinding zone and the fine grinding zone, increase the resistance of wood chips entering between the grinding discs, and reduce the decomposition efficiency of the grinding disc fibers, etc. problem, to achieve the effect of improving the efficiency of fiber decomposition, simple structure and strong force
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[0017] The thermal grinder grinding plate of the present invention includes a dynamic grinding plate and a static grinding plate. The grinding plate is composed of an integral disc or a combination of multiple fan-shaped plates. Grinding teeth are provided on the bottom plate of the grinding plate. From inside to outside, it is divided into crushing zone 1, rough grinding zone 2 and fine grinding zone 3. The surface of grinding teeth 20 in coarse grinding zone 2 and the surface of grinding teeth 30 in fine grinding zone 3 are connected at a certain slope. Crushing zone 1 grinds teeth. 10 is disconnected from the grinding teeth 20 of the coarse grinding area 2, the lower end 20' of the grinding teeth 20 in the rough grinding area 2 is chamfered at 30-60°, and the lower end root 20a of the grinding teeth 20 in the rough grinding area 2 forms a circular ring ?1 The ring formed with the upper end 10a of the grinding tooth 10 in the crushing zone 1 ?2 The spacing b=5-15mm, so that...
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