Abstract:
Automobile tires and analogous articles of rubber or synthetic plastic material are frozen to make them brittle, and thereupon are fragmented in order to separate their rubber or synthetic plastic material from embedded reinforcements of textile or analogous fabrics. The fragmenting is carried out by dropping the articles into an impact mill in which a rotor equipped with striking elements turns about a horizontal axis, so that the articles are hit by the striking elements of the rotor and flung in circumferential direction of movement of the rotor against impact plates from which they drop back onto the rotor, whereby the articles are fragmented by the repeated hits and impacting. An apparatus for carrying out the method is also disclosed.
Abstract:
A secondary shredder can include a rotor assembly that employs a modular rotor design. Each rotor of the rotor assembly can include a number of blades that are symmetrical around a horizontal and a vertical axis. Each rotor can include a number of radial extensions forming gaps into which the blades insert. The blades can be secured within the gaps by wedges that apply an inward force against the blades when the wedges are secured into the gaps. The radial extensions and blades can include keyways into which keys insert to prevent the blades from escaping the gaps. The secondary shredder may also include a stationary knife assembly that includes multiple stationary knives that are positioned on the same side of the rotor assembly.
Abstract:
A machine or system and related method for breaking and reducing the bulk size of one or more objects and comprising : a frame, a a reception chamber and a size reduction mechanism. The size reduction mechanism includes a drum rotatably coupled to the frame a nd configured to oscillate relative to the frame between a first position and a second position about a longitudinal rotational axis; a cutting member coupled to the drum and extending therefrom, the cutting member being configured to penetrate through one or more of the objects in the reception chamber during operation as the drum rotates from the first position to the second position during each oscillation cycle; and a breaking screen comprising a series of spaced breaking members configured to cause further breakdown of the one or more pieces of the one or more objects during operation as the drum rotates toward the second position during each oscillation cycle and forces the one or more pieces against the breaking members. An optional chute may be coupled to the outlet of the machine or system for further compacting and disposing of the bulk material output by the machine.
Abstract:
The present invention relates to a material processing apparatus. The apparatus includes a frame including a pair of laterally opposed parallel sides and a base, and at least a first pair of substantially cylindrical material processing rolling assemblies, wherein each pair of rolling assemblies are driven by a hydraulic drive motor assembly, such that using the hydraulic drive motors, the rolling assemblies can be driven at a variable friction ratio.
Abstract:
A comminution apparatus for refining materials into pieces of a desired size, the apparatus having a pair of generally circular disks disposed on a common axis and arranged generally parallel to one another forming a communution region therebetween. Each disk incorporates a plurality of removable cutting bars radially disposed on the disk face, one disk having an even number, the other having an odd number of cutting bars. Process material is fed into the communition space between the opposing disks snÌ comminuted by counter-rotatatÊon of the disks which shears material between opposing cutting bars as they pass. Spacing between the disks is adjustable to suit the input process material. Tapered disk faces control the flow of material during the comminution process, permitting only materia! that has been sufficiently reduced in size to migrate toward the disk perimeter where a skirt ring structure controls the size of the granulated material output.
Abstract:
A tyre recycling apparatus comprising a shredding chamber fed by an inlet chute. A first shredding device within the shredding chamber comprising a plurality of spaced apart hammers fixed to a first body rotatable about a first axis. A second shredding device within the shredding chamber comprising a plurality of blades pivotally mounted to a second body rotatable about a second axis, a first outlet for removing a first shredded tyre material from the shredding chamber; and a second outlet for removing a second shredded tyre material from the shredding chamber.
Abstract:
A unit for the processing of scrap rubber and scrap rubber products, by means of cryogenic milling, comprising cooling tunnels for the supercooling of the feedstuff for milling, contaminant removers and milling devices for the deeply chilled feedstuff. A multi-stage pre-milling is provided by means of milling units (17, 17a). The pre-milled feedstuff is fed through supercooling units, divided into several cooling zones, in which the feedstuff may be sprayed with a liquid deep-chilling agent. The supercooling units are arranged in series with a compensation system. The supercooled feedstuff is subsequently finely milled in multi-stage fine milling units in a stepwise manner.
Abstract:
The invention relates to the recycling of worn-out tyres and other industrial and domestic wastes. The method for disintegrating the worn-out tyres consists in producing a package of worn-out tyres in the form of compressed layers. The initial destruction of said package is carried-out in an armoured chamber in conditions of free extension until a destruction point of the external layers thereof is reached. The dimensions of the armoured chamber at any section perpendicular to the axis thereof and vary within a range of 2 to 7 times of diameter of the package in said section. The package of tyres is formed from several spiral twists which are axially arranged and provided with an axial orifice. Deformation and a state of stress are produced during the free extension of the rubber layer without contacting the walls of the armoured chamber. Said state makes it possible to carry out the effective destruction and disintegration of the rubber and metallic and textile cord.
Abstract:
The invention relates to a method for processing polymer materials such as rubber and to an installation to carry out such a method, whereby a cooling chamber (6) is located in a substantially vertical manner and dosing devices are installed coaxially at the input of said cooling chamber (6) and at the output thereof. Said dosing devices make it possible to control the flow of rubber crumb to be treated at the input as well as at the output. Openings made in the top and bottom portions of the cooling chamber are used for the supply of cooled air, and an opening made in the middle portion of said chamber is used to remove the vitiated air. The cooling chamber comprises at least one circular chamber located coaxially with the cooling chamber, separated by a gap with said cooling chamber and having larger radial dimensions than the latter. The ratio of the dimensions of the circular chamber and the cooling chamber is comprised between 1.1 and 1.2.