摘要:
The invention concerns a method for cutting up tyres with a view to recycling them, which consists in cutting the tread (1) to separate if from the two sidewalls (2, 3) with a high pressure water jet. The invention is characterised in that the tyre is cut from the inside along a radial direction and in a liquid medium such as water. The method consists in cutting the two edges of the tread (1) so as to produce a bevel (30). The invention also concerns a method for recycling tyres in order to recover the pure rubber gum comprising a step which consists in pulverizing the bits of tyres with high pressure water jet loaded with very fine grains of an abrasive material above a vat containing a liquid, so as to obtain rubber particles with dimension not more than 12 micrometers and a step which consists in sorting out by flotation the resulting rubber particles recuperating particles free of impurities floating on the liquid and a diffusing device for implementing said method.
摘要:
There are provided a method and a facility for separating and recovering a steel pipe and a covering resin in a resin-covered steel pipe (1), which do not produce cuttings of the steel pipe (2) and which make it possible to continuously operate the facility. The method comprises the steps of using a cut line forming means (26b) installed forwardly of the position that a high frequency induction coil (21) passes, so as to form a cut line (18) extending from the surface of the resin-covered steel pipe (1) toward the steel pipe (2), deep enough to reach the surface of the steel pipe (2) from the surface of the covering resin (3), throughout the length of the resin-covered steel pipe (1), circumferentially dividing the covering resin (3) into at least two parts, heating the steel pipe by high frequency induction heating, in the position of a separating device (25) disposed at a suitable position immediately after the passage of the position of the high frequency induction coil (21), to the extent the boundary between the covering resin (3) and the steel pipe (2) assumes the state for the release of the covering resin (3) from the steel pipe (2), and cutting each covering resin (3) into at least two parts along the cut line (18) and toward the outside of the steel pipe (2) by the separating device (25) while releasing and separating it from the steel pipe (2).
摘要:
There is provided a method for recycling synthetic wood materials, transformed into materials through a relatively simple method without performing elimination of encrusted concrete from a previously used sheathing board for use in a concrete form having synthetic wood materials as raw materials. The method consists of a step wherein a sheathing board 1 (1a) which had been previously used as a concrete form 50 and formed from synthetic wood materials with a moisture content of less than 15 wt %, wherein between 20 and 75 wt % of cellulose crushed materials, such as wood meal with particle diameters of between 50 and 200 µm, and between 25 and 80 wt % of thermoplastic resin molding materials, are mixed, is crushed into numerous coated particles 82, and a step wherein a scraping impact force is applied to each individual coated particle 82, concrete and other encrusted materials encrusted on the previously mentioned coated particles 82 are peeled or separated, and at the same time as the synthetic wood materials constituting the coated particles 82 and the encrusted materials are classified, the particles of the synthetic wood materials are granulated, and the granulated synthetic wood meal materials 83 for which the particles have been granulated are recycled.
摘要:
A method for processing synthetic resins into a furnace fuel comprises melting or semi-melting synthetic resins consisting essentially of film shaped synthetic resins and/or pulverizing synthetic resins consisting essentially of massive synthetic resins to produce granular synthetic resins having a bulk density of at least 0.3 and an angle of repose of up to 40 degree, wherein the angle of repose is a base angle when the granular synthetic resins are dropped on a horizontal plane surface.
摘要:
The invention relates to an article made, at least in part, by shearing a fiber source to provide a first fibrous material; (12) and passing the first fibrous material through a first screen (16) having an average opening size of 1.59 mm or less (1/16 Inch, 0.0625 inch) to provide a second fibrous material (14); mixing the second fibrous material with a radiation cross-linkable resin to provide a fibrous material/cross-linkable resin combination, wherein the fibrous material has an average length to diameter ratio of greater than 5 and a standard deviation of a fiber length is less than eighty five percent of an average fiber length; and irradiating the fibrous material/cross-linkable resin combination to at least partially cross link the cross-linkable resin to form the article.
摘要:
Methods and equipment for the recycling of carpet are disclosed that produce a clean fiber product suitable for industrial use. The methods allow the recovery of face fiber material, for example a polyester, polyolefin, or a polyamide, from carpets that includes a face fiber material, a polypropylene backing material, and an adhesive, and include the steps of mechanically impacting the carpet to break the bonds between the adhesive and the fibrous components, treating the fibrous components to remove adhesive granules from the fibrous components, and optionally separating the polypropylene backing from the face fiber. A clean adhesive/calcium carbonate product can also be produced from this process.