Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)

Hiroyuki Yuki

Takeshi Hamada

Masaki Hamaguchi

Shoji Inomata

Hirotoshi Takanami

A crushing chamber is formed between a concave liner and a mantle liner. The concave liner has a first area surface having a length of T to &#x221a;2T; a second and a third area surface; which surfaces are gradually inclined from the side of the inlet for the crushing chamber. The mantle liner has a first tapered surface having a length of greater than T, a cross angle of less than 20&#xb0; and an inclination angle of greater than 60&#xb0;; a second tapered surface having a length of greater than 0.5T and a cross angle of 5&#xb0; to 10&#xb0;; and a third tapered surface having an inclination angle of 45&#xb0; to 50&#xb0;. The area surfaces as well as the tapered surfaces are continuously arranged in a curvilinear manner. The shapes enhance the throughput of goods in a good fine-crushing performance, reducing the uneven abrasion due to the action.

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Takasago, Japan

Hiroyuki Yuki