摘要:
PROBLEM TO BE SOLVED: To prevent dusts generated in a high-temperature gas by thermal cracking from accumulating in a duct connecting a thermal cracking tank and a plate column or a packed column as a liquefaction apparatus and clogging the duct interior in a process of separating oils and residues generated by thermal cracking as a method of efficiently converting waste plastics to oils.SOLUTION: A cyclone 1 or a chamber as a dust collecting apparatus is installed between a thermal cracking tank and a plate column or a packed column, and in order to prevent liquefaction of a high-temperature gas in the dust collecting apparatus due to condensation thereof, the outer wall of the dust collecting apparatus is heat insulated and heat retained 12.
摘要:
PROBLEM TO BE SOLVED: To produce an oil and a residue including small quantity of chlorine, by preventing air in supplying a raw material to an apparatus for thermally decomposing mixed waste plastics from invading thereinto, treating hydrogen chloride produced in decomposition, and preventing blocking of equipment piping etc., with terephthalic acid. SOLUTION: An object to be treated is temporarily received in a sealed vessel and a deaeration means is used therefor, subsequently a residue exhaust port of a cylindrical vessel-shaped secondary thermal decomposition apparatus is sealed with water via an inclined primary thermal decomposition apparatus, the decomposition gas is transferred to a terephthalic acid removing apparatus incorporating a multi-layered pipe via a multistage column and a packed column to thereby remove terephthalic acid, and subsequently the decomposition gas is released into the atmosphere via a total heating column, a knockout drum and a sealing drum. COPYRIGHT: (C)2011,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To allow removal of phthalic acid crystals blocking a piping gas passage connecting facility apparatuses mutually when phthalic acid is contained in a gas formed when mixed waste plastics are thermally decomposed by electromagnetic induction heating. SOLUTION: After thermal decomposition is carried out at a temperature allowing desalting and oil is collected in a distilling column, liquified gas is introduced into a tank to be passed through the inside and the outside of pipes overlayed in multiple layers, and crystallization is promoted in a multitubular pipe when control to sublimation crystal temperature is carried out based on a sublimation action. Then, the multitubular pipe after the crystallization is taken outside to remove the crystals. COPYRIGHT: (C)2011,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To efficiently and inexpensively produce high temperature superheated steam using saturated steam without carrying out boosting. SOLUTION: This superheated steam generator is adapted to generate electromagnetic induction heating to an outer cylinder by closely winding a hollow tube coil around the outer cylinder and energizing a high frequency electric current; to wind and embed a thin plate between the inner periphery of the outer cylinder and the outer periphery of an inner cylinder provided in the outer cylinder and formed with a cavity inside; and to allow saturated steam to flow in a space surrounded by the inner wall of the outer cylinder, clearances between the thin plates and the inner cylinder. COPYRIGHT: (C)2011,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To solve such problems that when waste plastic products are crushed and the crushed hard/soft waste plastics are fed to a pyrolyzer, the internally-generated gas rises since the temperature in a pyrolysis tank is increased and it is difficult to feed the waste plastics to the pyrolyzer without making the air, which is accompanied by the waste plastics, intrude into the pyrolysis tank. SOLUTION: A rotary valve is used as a feeder of the waste plastics. The rotary valve has a first chamber, a second chamber and a third chamber, which are superposed in multiple stages and the adjacent ones of which are divided from each other by a circular plate having a through-hole, and has a function of communicating/isolating the adjacent chambers with/from each other by rotating the circular plate to open/close the through-hole. The second chamber has functions of a valve and a rake for raking a temporarily-stocked treated material. COPYRIGHT: (C)2011,JPO&INPIT
摘要:
PURPOSE: A restorative dental material of corona dentis having properties and appearance close to those of natural tooth, improved affinity for organisms and beauty, consisting of crystallized glass of a calcium phosphate system having a specific ratio of calcium to phosphorus wherein the crystal is grown and arranged in a layer state on the cross section. CONSTITUTION: A restorative dental material of corona dentis such as corona dentis, inlay, bridge, etc. consisting of crystallized glass of calcium phosphate system having an atomic ratio of calcium to phophorus of 0.35W1.7, preferably 0.45W0.7, wherein its crystal is grown and arranged in a layer state on the cross section. The restorative dental material of corona dentis has composition, physical, chemical and mechanical properties, color tone, gloss, and appearance extremely close to those of natural tooth, so it has excellent affinity for organisms, can suppress mutual wear during clenching of teeth, and has no bad influence on the human body at all. It has improved beauty, good adhesiveness even in previous coating of ceramic, and a process can be shortened because it does not require an opaque layer. COPYRIGHT: (C)1984,JPO&Japio
摘要:
PROBLEM TO BE SOLVED: To simultaneously sterilize and crush a pail, which stores a substance to be treated, without entraining air, in regeneration of energy by pyrolysis thermal decomposition as a method for treating an infectious medical waste.SOLUTION: When the pail is fed in a hermetically sealed feeding box, entrained air is deflated, and moreover, sterilization and crushing are carried out in a sterilization room, and, at the same time, the infectious medical waste is treated in electromagnetic induction superheated steam and pyrolysis high-temperature gas.
摘要:
PROBLEM TO BE SOLVED: To sterilize infectious medical waste, specially controlled industrial waste, including chloride mixed in it as the top priority; and to perform liquefaction by thermal decomposition by crushing after sterilization to convert the residual into fuel. SOLUTION: The substance to be treated is sterilized while stored in a pail can and then crushed. Then, it is desalinated by means of heat decomposition. The hydrogen chloride gas by desalination is treated by accelerating neutralization or catalytic oxidation. COPYRIGHT: (C)2011,JPO&INPIT
摘要:
PURPOSE: To obtain a solid electrolyte with superior proton conductivity by heat treating phosphate glass composed chiefly of phosphorus oxide and oxide of a IIa group element in the periodic table to crystallize the glass. CONSTITUTION: Said phosphate glass such as 60BeO.40P 2 O 5 , 50MgO.50P 2 O 5 or 40BaO.60P 2 O 5 is prepared. This glass is first heated to a lower temp. to form crystal nuclei, and it is heated to a higher temp. to grow the nuclei. By this 2-step heat treatment the desired proton conductive solid electrolyte is obtd. When the phosphate glass is 40BaO.60P 2 O 5 , by heating the glass at 440°C for 90hr and at 520°C for 250hr in succession, the dielectric constant can be enhanced by about 1 figure. COPYRIGHT: (C)1982,JPO&Japio
摘要:
PURPOSE: To obtain oriented crystallized phosphate glass of high strength without carrying out drawing by heat treating metaphosphate glass having a chain structure in the vitreous state and a crystalline state at a certain temp. gradient. CONSTITUTION: Metaphosphate glass having a chain structure in the vitreous state and a crystalline state such as calcium metaphosphate glass is manufactured. This glass is heat treatd at about 500W580°C while providing about 5W100°C/cm temp. gradient. When the glass is passed through the temp. gradient region, it is converted into crystallized glass having slender fibrous crystals oriented in the temp. gradient direction. This crystallized glass is featured by low bending strength especially after scratching, so it is suitable for use as a material for a living body such as an artificial bone material and a ceramic material for engineering. COPYRIGHT: (C)1982,JPO&Japio