Abstract:
The invention relates to a crusher housing (67) which is provided with a lid member (69) that is provided with an inner lid lining face (82) that is positioned as closely as practical possible to the open rotor (72) creating essentially a sandwich rotor with a rotating rotor table and a stationary roof with minimum free space between the top side of the sliding members (85) and the inner lid lining face (82), which configuration provides the crushing chamber with a number of unique features in that vortex building and turbulence in the crushing chamber are severely limited, such that the particles are focused for accurate and undisturbed impact; increasing the reduction ratio, providing constancy to the breakage process - resulting in less oversize and less undersize, better shaping and a high degree of selectivity - and reduces wear along the feed opening and along the inner lid lining in dramatic way, saves on energy, and limits dust formation.
Abstract:
The invention relates to a crusher housing that is provided with an impact block member (4) that is composed of impact blocks (47) which stretches along the drum wall such that at least one essentially closed inner space is created between the impact block member and the drum wall, such that the closed inner space fills with particle material when the impact block starts to wear through, creating a partly worn through impact face (14) that is partly autogenous of own material, which is compacted by repetitive impact, such that the partly worn through impact face provides still significant impact intensity as well as temporary protection to the construction behind the impact block member, which impact block member (4) is supported with the aid of at least one support member (25) such that collapse into the crushing chamber of the upper part of the impact block and/or of the lower part of the impact block is hindered, when an impact block (47) wears through completely.
Abstract:
The method and the device according to the invention relates to a stator and an armoured ring which are combined to give a stationary annular collision member that is arranged around the rotor, as it were in the form of a stator that is provided all round along the inside, which faces the axis of rotation, with protruding collision surface reliefs, each of which is provided with at least one collision surface that is arranged transversely in the ejection stream that the material describes when it is propelled outwards from the rotor.
Abstract:
The invention relates to a crusher housing (67) which is provided with a lid member (69) that is provided with an inner lid lining face (82) that is positioned as closely as practical possible to the open rotor (72) creating essentially a sandwich rotor with a rotating rotor table and a stationary roof with minimum free space between the top side of the sliding members (85) and the inner lid lining face (82), which configuration provides the crushing chamber with a number of unique features in that vortex building and turbulence in the crushing chamber are severely limited, such that the particles are focused for accurate and undisturbed impact; increasing the reduction ratio, providing constancy to the breakage process - resulting in less oversize and less undersize, better shaping and a high degree of selectivity - and reduces wear along the feed opening and along the inner lid lining in dramatic way, saves on energy, and limits dust formation.
Abstract:
The invention relates to a rotary accelerator device for accelerating particle material with the aid of at least one rotating structural composite accelerator member (1) in at least one phase, for comminution of the material by impact, that consists out of at least one accelerator block (3) that is made out of at least a white iron alloy part, which white iron alloy part is provided with at least one acceleration surface (4) and at least one transversal side surface (6) that is directed essentially transversally to the acceleration surface and a strengthening member (7) that is made of an unalloyed, or low alloy steel that, after thermal hardening of the accelerator member, has an appreciably greater tensile strength than the white iron alloy part, which accelerator block is joined together with the strengthening member along a transversal side of the white iron alloy part to form a structural composite accelerator member, which strengthening member is provided with an attaching arrangement.
Abstract:
The device according to the invention relates to a rotor that can be rotated in at least one direction of rotation about an axis of rotation, which rotor is provided with a rotor surface and with a receiving and distributing member, which receiving and distributing member is provided on the top with a receiving and distributing surface, the outer edge of which extends in a regular manner around the axis of rotation, such that the outer edge of the rotor surface is at least partially a greater radial distance away from said axis of rotation than the outer edge of said receiving and distributing surface, at least that part of the rotor surface that extends between the outer edge of the receiving and distributing member and the outer edge of the rotor surface being a greater distance away from the plane of movement than said outer edge of said receiving and distributing surface.
Abstract:
The invention relates to a method for directly and multiply making material collide in an essentially deterministic manner, the material being guided, by a rotating guide member (8) from a central feed, along a guide face (10) and to a delivery end (19), in such a guide manner, that the material leaves the guide member, from an essentially predetermined take-off location, at an essentially predetermined take-off angle and at a take-off velocity which can be selected with the aid of the angular velocity, with the instantaneous angle ( theta ) between the radial line (48) on which the delivery is situated and the radial line (49) on which is situated the location where the spiral stream and the path of the rotating impact member (14) intersect one another being synchronised in such a way that the impact takes place at an essentially predetermined location, at an essentially predetermined impact angle and at an impact velocity which can be selected with the aid of the angular velocity, whereupon the material, when it comes off the impact face, collides with a collision face of a stationary impact member at a collision velocity which is at least as great as the impact velocity.
Abstract:
A rotor blade construction for an impact crusher, in which the rotor blade (1) is provided with guides (3), on which guides a casing (2) in the form of a downward widening truncated cone is placed, on which casing guides (4) are disposed, which guides run from the top edge (7) of the casing to the bottom edge (8) of the casing (2), and from there run further to a point on the casing midway between the guides present there, from where the casing guides run further over the rotor blade (1) to the edge of the rotor blade.
Abstract:
The present invention may be regarded as to present a constructional design for an accelerating member for a vertical shaft impact crusher provided with an acceleration face constructed partly of base material sections and partly highly wear resistant insert members, such that development of an irregular wear pattern is avoided and premature wash-out and consequently breaking away of insert members is prevented, or at least hindered and the insert members are maximally utilized, which accelerating parts are easy to manufacture, may limit lifting weight to a maximum of 10-20 kg, and are provided with a simple attachment arrangement for very easy and quick exchange.
Abstract:
An open rotor assembly (1) provided with an accelerating member (2) that comprises a sliding block member (3) that is provided with two open centrifugal locking chambers, stretching respectively along the bottom side and the top side providing with a standing block pressure side facing the outer edge of the rotor, and an attachment member (4) that is provided with two centrifugal locking members, which fit the locking chambers for attachment of the sliding block member to the attachment member; such that the sliding block member is centrifugally locked to the attachment member, avoiding the need to provide the sliding block member with any separate locking and/or securing arrangement.