摘要:
The present invention relates to a cooling device (1) with increased insulation effectiveness, comprising a body (2) that has an inner wall (3), an outer wall (4), an insulation volume (5) between the inner wall (3) and the outer wall (4) and an insulation material (6) filled into the insulation volume (5).
摘要:
The present invention relates to a method for producing glasfiber reinforced pipe (GRP) pipe product comprising the process step of adding and mixing cobalt, a catalyst and styrene monomer into the polyester and/or vinyl ester resin, characterized in comprising the following process step: adding the cutting dust waste resulting from said production stage into said mixture in the subsequent production of said product.
摘要:
The present invention processes rubber products, such as from tyres, according to a process in which an extractant is introduced to the rubber material and subjected to a wet milling process to create a slurry-like material. Volatile distillate fractions are recovered from the slurry which may be used as a fuel. Further heating can produce substantially dry carbon rich product, which can be similar in character to pyrolytic carbon.
摘要:
Methods of producing particles of fiber and resin from fiber-resin composite materials are disclosed. The particles may be combined with a resin system and optionally combined with fillers, binders or reinforcements to produce new cured solid composite products.
摘要:
The novel group of polymers is presented under the name of Powdered Metastable Polymer Materials (PMPM). The PMPM is in a chemically stable state at an ambient temperature of 25°C for a relatively long time, but is in a thermodynamically unstable state, and may change to either a stable state (in this case, revulcanization), or an unstable state (in this case, decomposition). According to the prior art, these PMPMs are, under various conditions, malleable, processible, compoundable and revulcanizable, and thus make it possible to form new vulcanized or coagulated products, with or without moulds, with or without other polymers or elastomers, vulcanizing agents, compatibilizers, various additives, etc. even if they are incompatible or immiscible to begin with. The PMPM is manufactured by the process known as metactivation, which applies, to already vulcanized polymer granulates, a multidirectional microcracking by individual rotary compression and a disintegration by micro auto-explosion, thus obtaining a metastable state by virtue of a reduction in the activation enthalpy necessary for triggering a spontaneous reaction. The classification of rubbers as granulates or powders, manufactured from vulcanized rubbers is arranged in a table that classifies the typologies according to the scientific characteristics that make it possible to demonstrate the specificities of the PMPM. The properties of this group, which are fundamentally novel, open the way to the complete reuse of already vulcanized polymers such as used tyres.
摘要:
Equipment for controllable fine milling of tires (31) and other elastic materials by ultrahigh pressure liquid jet process, to the main feature of the equipment that milling is performed by a group of high-speed linear- vibrating liquid jets that are perpendicular to the forward motion of the workpiece in such way that jets are perpendicular also to the surface of the workpiece or slightly inclined to that perpendicular; and the speed of vibration considerably exceeds the speed of forward motion of the workpiece. For the sake of dynamic balancing of milling system the linear vibrating motion is performed by twindriven milling heads (40, 140, 240), which solution also enables processing of workpieces in pair. Fineness of rubber-grain product is principally controlled by coordinated motion parameters of milling, namely by forward speed of workpiece and the frequency of vibration.
摘要:
Method for combined recycling of waste polymer material or joint production with carbon black and integrated equipment thereof. Above said method comprises: breaking or coarsely crushing a part of waste polymer to obtain intermediate product group I comprising waste polymer blocks, powder, or waste polymer powder and mixed fibrous fragments; heat cracking another part of waste polymer or mixed fibrous fragments in intermediate product group I and applying subsequent processing, to obtain product group II comprising heat cracked oil and intermediate product group II comprising heat cracked carbon black dregs and/or tar dregs; mixing the heat cracking carbon black dregs and/or tar dregs in intermediate product group II with the powder of waste polymer in intermediate product group I, superfinely crushing and/or heating desulfurating, plastifying, mixing to obtain product group I comprising mixture of superfine rubber powder and carbon black powder.
摘要:
A comminution apparatus for refining various materials into smaller pieces of a desired size, has a pair of generally circular disks disposed on a common axis and arranged generally parallel to one another forming a comminution 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 comminution space between the opposing disks and comminuted by counter-rotation 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 flow of material during the comminution process, permitting only material 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.
摘要:
Способ переработки отработанных автопокрышек, а также резинотехнических отходов, армированных кордом, включает их разделение на фрагменты размером не более 10-25 мм, грубое измельчение фрагментов воздействием сдвиговых деформаций при напряжении сдвига, достаточном для образования грубой резиновой крошки и отслоения резины от корда преимущественно без измельчения корда, и последующее выделение корда из образовавшейся смеси корда и грубой резиновой крошки. При этом грубое измельчение фрагментов осуществляют при температуре от 70 до 220° С, а после отделения корда осуществляют тонкое измельчение образовавшейся грубой резиновой крошки при температуре на 5-50° С выше, чем при грубом измельчении, и при напряжении сдвига, достаточном для образования преимущественно высокодисперсного резинового порошка. Грубое измельчение и тонкое измельчение осуществляют в установке роторного типа для высокотемпературного сдвигового измельчения, в котором рабочий орган измельчения установлен по отношению к внутренней поверхности корпуса установки с кольцевым зазором 0,3-6 мм.
摘要:
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.