An impact mill-includes a casing enclosing a milling chamber; at least one rotor, impacting elements driven in rotation by the rotor; wherein the casing has an inlet for the raw material and an outlet for the milled material, and wherein the casing is equipped with water injectors.

A comminution device for mechanically comminuting material conglomerates consisting of materials of varying density and/or consistency, including a comminution chamber having a supply side with a supply device above the comminution chamber and a discharge side, which comminution chamber is enclosed by a circular cylindrical and/or conical, downwardly widened comminution chamber wall and has at least two portions in succession in the axial direction, in each of which at least one rotor is arranged coaxial with the comminution chamber, each rotor having a rotor shaft and having striking tools which extend substantially radially into the comminution chamber at least during operation, the rotors having opposite directions of rotation in at least two successive portions, deflection ribs being arranged on the inside of the comminution chamber wall at axial intervals and/or the radius of the comminution chamber wall increases from top to bottom.

A comminution device for mechanically comminuting material conglomerates consisting of materials of varying density and/or consistency, including a comminution chamber having a supply side with a supply device above the comminution chamber and a discharge side, which comminution chamber is enclosed by a circular cylindrical and/or conical, downwardly widened comminution chamber wall and has at least two portions in succession in the axial direction, in each of which at least one rotor is arranged coaxial with the comminution chamber, each rotor having a rotor shaft and having striking tools which extend substantially radially into the comminution chamber at least during operation, the rotors having opposite directions of rotation in at least two successive portions, deflection ribs being arranged on the inside of the comminution chamber wall at axial intervals and/or the radius of the comminution chamber wall increases from top to bottom.

The present invention concerns a reactor (1) for the gasification of organic material included in composite raw material and the separation of gasified organic material from inorganic material included in the composite raw material, the reactor comprising at least one reaction chamber (2) and at least one rotor (3), said reaction chamber (2) comprising at least one housing (6, 6a, 6b) that is sealed in relation to the surroundings and has at least one inlet opening (8a, 8b, 8c) and at least one outlet opening (9a, 9b) and said rotor (3) comprising at least one shaft (5). Said housing (6, 6a, 6b) is in heat exchanging contact with at least one channel (20) intended to convey gas for heat exchange between the gas and said housing (6, 6a, 6b). Said housing (6, 6a, 6b) is preferably cylindrical and has a primarily circular cross-section in a plane that is primarily perpendicular to a principal direction of extension of said at least one shaft (5), said channel (20) being in contact with at least one-third of the radial external envelope surface of said housing (6, 6a, 6b) and in addition entirely or partly surrounding said at least one inlet opening (8a, 8b, 8c). At least a first part of said rotor (3) is situated in said housing (6, 6a, 6b) and said shaft (5) extends in only one direction from said first part through and out of said housing (6, 6a, 6b). The present invention also concerns a method of increasing the efficiency in the reactor (1) and the use of the reactor (1).

The present invention concerns a reactor (1) for the gasification of organic material included in composite raw material and the separation of gasified organic material from inorganic material included in the composite raw material, the reactor comprising at least one reaction chamber (2) and at least one rotor (3), said reaction chamber (2) comprising at least one housing (6, 6a, 6b) that is sealed in relation to the surroundings and has at least one inlet opening (8a, 8b, 8c) and at least one outlet opening (9a, 9b) and said rotor (3) comprising at least one shaft (5). Said housing (6, 6a, 6b) is in heat exchanging contact with at least one channel (20) intended to convey gas for heat exchange between the gas and said housing (6, 6a, 6b). Said housing (6, 6a, 6b) is preferably cylindrical and has a primarily circular cross-section in a plane that is primarily perpendicular to a principal direction of extension of said at least one shaft (5), said channel (20) being in contact with at least one-third of the radial external envelope surface of said housing (6, 6a, 6b) and in addition entirely or partly surrounding said at least one inlet opening (8a, 8b, 8c). At least a first part of said rotor (3) is situated in said housing (6, 6a, 6b) and said shaft (5) extends in only one direction from said first part through and out of said housing (6, 6a, 6b). The present invention also concerns a method of increasing the efficiency in the reactor (1) and the use of the reactor (1).

A grinder includes a body having a first end, a second end defining an opening, and an interior surface defining an inner chamber extending from the opening at least partially towards the first end. The grinder also includes a chain positioned within the inner chamber. The chain includes a plurality of balls. The grinder further includes a motor coupled to the chain. The motor is configured to cause rotational or reciprocal motion of the chain within the inner chamber.

A grinder includes a body having a first end, a second end defining an opening, and an interior surface defining an inner chamber extending from the opening at least partially towards the first end. The grinder also includes a chain positioned within the inner chamber. The chain includes a plurality of balls. The grinder further includes a motor coupled to the chain. The motor is configured to cause rotational or reciprocal motion of the chain within the inner chamber.

A comminution machine having a stationary anvil and rotating hammer strike iron. In such machines, when hammer heads are worn out, the entire hammer strike iron must always be replaced, insofar as a uniform quality is to be achieved in the comminuted material. This is very cost-intensive. The invention thus proposes a novel hammer strike iron having an insert piece which has a cylindrical, eccentric bore or an eccentric oblong hole for receiving a swivel pin of the comminution machine. The insert piece has cheeks of differing thickness on both ends, such that, by rotating the insert piece in the hammer strike iron by 180, the distance between the hammer head and the anvil can be varied. If a hammer head has been inadmissibly worn, the insert piece can be removed, turned 180, and reinstalled. The gap between the anvil and the hammer head can thus be uniformly regulated.

An impact processing system (10) having a central opening (12) enabling material flow into a primary impact zone (14) in which is located an impact mechanism (16) rotatable about a rotation axis (18). An impact structure (20) provided with a plurality of holes (22) surrounds the impact mechanism (16). The rotatable impact mechanism (16) impacts material entering the primary impact zone (14) from the central opening (12) and accelerate the impacted material in a radial outward direction toward the impact structure (20) to effect fragmentation of the impacted material so that when sufficiently fragmented the material is able to pass through the holes (22). An optional outer structure (30) is radially spaced from the impact structure (20) and may comprise one or more segments that cumulatively extend about the axis of rotation (18) for an angle from 30 and 270 inclusive. A rotatable set of impact members (50) may be located between the impact structure and the outer structure. One or more gaps (28) may be provided in the impact structure (20) to allow the passage of large and/or hard objects that cannot otherwise be fragmented. The outer structure (30) is positioned to span across the gaps (28) so that material passing there thought is directed onto the outer structure (30).

A multistage hammer mill 10 has a plurality of milling stages arranged concentrically so that substantially all material in a first innermost of the milling stages passes through all subsequent adjacent milling stages. A central feed opening 12 enables material flow into a primary impact zone 14 of a first milling stage, which has an impact mechanism 16 and a first screen arrangement 20a. The impact mechanism 16 rotates about a rotation axis 18. The first screen arrangement 20a is disposed circumferentially about and radially spaced from the impact mechanism 16 and has a plurality of apertures 22 through which impacted material of a first size range can pass. A second milling stage has a second arrangement 20b disposed circumferentially about and radially spaced from the first screen arrangement 20a and a circular array of impact elements 50a between the first and second screen arrangements.