Vertical shaft impact crusher feed tube
AssigneeSandvik Intellectual Property AB
InventorsRowan Dallimore, Andreas Forsberg, Knut Kjaerran
Life of this patent
Estimating the term…
Abstract
A vertical shaft impact crusher feed tube arranged for protecting a rotor feeding opening of a feeding funnel of a vertical shaft impact crusher. The feed tube includes a tube portion via which material may flow from the feeding funnel and vertically downwards into a rotor. The tube portion has a first width at a material inlet, and a second width at a material outlet, wherein the second width is larger than the first width.
Claims14
A vertical shaft impact crusher feed tube for protecting a rotor feeding opening of a feeding funnel arranged for feeding material to be crushed into an opening arranged in a roof of a rotor of a vertical shaft impact crusher, the feed tube comprising a tube portion via which material may flow from the feeding funnel and vertically downwards into the rotor, wherein the tube portion has a first width at a material inlet, and a second width at a material outlet, wherein the second width is larger than the first width.
A method of feeding material to a rotor of a vertical shaft impact crusher, the method comprising:
- feeding material to be crushed from a feeding funnel and into an opening arranged in a roof of the rotor of the vertical shaft impact crusher;
- protecting a rotor feeding opening of the feeding funnel by a vertical shaft impact crusher feed tube;
- and
- allowing the material to flow through a tube portion of the feed tube, wherein the material to be crushed is exposed to a cross-section of the tube portion that widens from a first width to a second width, which is larger than the first width, as the material flows vertically downwards through the tube portion towards the rotor.
A vertical shaft impact crusher comprising:
- a rotor having a rotor feeding opening;
- a feeding funnel for feeding material to be crushed into the opening of the rotor;
- and
- a vertical shaft impact crusher feed tube for protecting the rotor feeding opening, the feed tube including a tube portion into which the material may flow from the feeding funnel and vertically downwards into the rotor, wherein the tube portion has a first width at a material inlet, and a second width at a material outlet, the second width being larger than the first width.
Dependencies are inferred from the claim text.