摘要:
A method and unit for recycling a bituminous membrane provided with at least one reinforcement. Said membrane is broken into pieces which are introduced into a recycling unit provided with a first rotor, accommodated in a first stator, where they are heated and crushed. The pieces are transported to a chamber which is defined by an outer partition of the first rotor and a recess fitted in a counter element mounted on the stator, where they are pulverized. The pulverized pieces are then drained off from the chamber along the outer partition of the rotor.
摘要:
A rotary crusher (20) comprises first and second crushing means (22, 23) defining a crushing space (38) through which material is to be passed. The first crushing means (22) is defined by an outer surface (24) of a polygonal drum (22) which is rotated to move the outer surface (24) relative to the second crushing means (23) to alter the dimensions of the crushing space. The second crushing means (23) may be an outer surface (24) of a second polygonal drum (23), but may also be a surface (41) of an anvil (40) - see Figures 5 - 14. The crushing surfaces (24, 41) are preferably d efined by teeth (24, 41) in the form of corrugations extending the direction of rotation of the drum (22). The two sets of corrugations are relatively offset transverse to the feed direction whereby they progressively apply a crushing load to the material and also a bending load to the material transverse to the feed direction.
摘要:
The invention relates to a grinding device (1, 1', 1"), in particular a vertical mill for comminuting a product to be ground, said device having: a) at least two grinding bodies (2, 3) which can be moved relative to one another, said two grinding bodies (2, 3) together forming at least one grinding region in which the product to be ground can be ground by the two grinding bodies (2, 3); and b) at least one contact pressure device (7, 7', 7") having at least one hydraulic cylinder (8) with a cylinder working chamber and having at least one gas spring (9) with a spring working chamber, the cylinder working chamber and the spring working chamber having a fluidic connection. A contact pressure can be applied to at least one of the grinding bodies (2, 3) by the at least one contact pressure device (7, 7', 7"), by means of which pressure the grinding bodies (2, 3) can be pressed towards each other. In order to produce a grinding device (1, 1', 1") that is no longer at risk from unstable vibrational conditions, according to the invention c) the smallest cross-sectional area between the cylinder working chamber and the spring working chamber through which fluid passes is at least 10 % of the cross-sectional area of the cylinder working chamber and/or d) a connecting section extending between a first transitional cross-section of a connecting component, which cross-section communicates with the cylinder working chamber, and a second transitional cross-section of the connecting component, which cross-section communicates with the spring working chamber, has a maximum length of 100 cm.
摘要:
Crushing finely the chipped rubber such as that of waste tire is done by further small number of crushers, and the capture rate of the target size of the rubber particles is improved. With a crusher which finely crushes the chipped rubber (G) such as that of waste tire, the chipped rubber (G) is supplied to a crusher (10a) structured by a rotating roll (12) having relatively rough groove pitch and pluralities of fixed blades (14) each of which has pluralities of grooves forming crushing edges, thus conducting crushing. The rubber particles (G) discharged from the crusher (10a) are again supplied to the crusher (10a) to repeat the crushing to conduct rough-finishing operation. Then, thus roughly-finished rubber particles (G) are treated by similar crushing operation using a rotating roll (10b) having relatively small groove pitch to conduct finish treatment. The finely-crushed rubber particles are classified using a sieve (16) to specified size ranges.
摘要:
The invention relates to a roller crusher comprising a housing frame (1), a rotatable roller (2), an oscillating arm (4) mounted on an oscillating arm axis (3) on a housing frame (1), a crusher chamber (5) between the roller (2) and the oscillating arm (4), and an adjustment device (6) which is arranged at a distance to the oscillating arm axis (3) between said oscillating arm (4) and an abutment (7) which is stationary with respect to the housing frame (1), in order to enable said oscillating arm (4) to rotate about the oscillating arm axis (3). According to the invention, the adjusting device (6) comprises a wedge (8) which is arranged between the oscillating arm (4) and the abutment (7), said wedge bridging a gap between a bearing surface (9) arranged on a rear side of oscillating arm and a counter surface (10) associated with the abutment (7). The distance between the oscillating arm (4) and the roller (2) is, in the second position (P2) of the wedge (8) in the gap, greater than in a first position (P1) of the wedge in the gap.
摘要:
A rotary crusher (20) comprises first and second crushing means (22, 23) defining a crushing space (38) through which material is to be passed. The first crushing means (22) is defined by an outer surface (24) of a polygonal drum (22) which is rotated to move the outer surface (24) relative to the second crushing means (23) to alter the dimensions of the crushing space. The second crushing means (23) may be an outer surface (24) of a second polygonal drum (23), but may also be a surface (41) of an anvil (40) - see Figures 5 - 14. The crushing surfaces (24, 41) are preferably d efined by teeth (24, 41) in the form of corrugations extending the direction of rotation of the drum (22). The two sets of corrugations are relatively offset transverse to the feed direction whereby they progressively apply a crushing load to the material and also a bending load to the material transverse to the feed direction.