摘要:
Submerged combustion methods (900; 1000) and systems (100; 200; 300) including a melter (210) equipped with one or more exhaust passages (15; 315A, 315B) through a ceiling (14; 314) or a sidewall structure having an aggregate hydraulic diameter. Submerged combustion burners configured to create turbulent conditions in substantially all of the material being melted (350), and produce ejected portions of melted material (352). An exhaust structure including a liquid-cooled exhaust structure defining a liquid-cooled exhaust chamber having a cross-sectional area greater than that of the exhaust stack but less than the melter. The exhaust passage and liquid-cooled exhaust structure configured to maintain temperature and pressure of the exhaust, and exhaust velocity through the exhaust passage (158; 315A, 315B) and the exhaust structure, at values sufficient to prevent the ejected material portions of melted material (352) from being propelled out of the exhaust structure as solidified material, and maintain any molten materials contacting the first interior surface molten so that it flows down the first interior surface into the melter (215).
摘要:
The present invention relates to polyisocyanate-based impregnating resin system, which is a liquid polyisocyanate mixture, containing more than 50 % by weight MDI based di- and polyisocyanates, and one or more, originally powdery inorganic hydroxides. The resin system of the invention is suitable for the preparation of prepregs. The invention relates also to the prepreg that can be manufactured with the use of the resin system, and use thereof. Among the uses of the invention one important is the use of the prepreg for lining chimneys.
摘要:
A duct for the escape of flue gas and for the intake of combustion gas, particularly for boilers, or the like, which duct comprises two concentric tubular elements (1,2), means (103,504) being provided for connection therebetween at least at the outer end of the duct. The invention provides that the outer pipe (2) has means (103) for locking the inner pipe (1) at least axially, which means can be operated or disabled from the inner pipe. The invention also provides a duct as described hereinbefore, whose length is telescopically adjustable. Said characteristics may be also applied, individually or in combination, to one-pipe ducts.
摘要:
The invention concerns a channel device for two or more heaters (3) of the closed type. According to the invention the main channel (12) has a glass fibre composite liner (30) that closes off the outlet openings (15) of the shunt channels (14) and is operably connected to the outlet channels (4); the partitions (16) have an opening (18) for connecting the respective shunt channels (14, 19); and the shunt channels (14, 19) are operably connected to the inlet channels (5).
摘要:
The invention relates to a gas-proof conduit designed in particular for evacuating waste air that carries contaminants from industrial processes, comprising delimiting peripheral walls, which are formed from essentially flat conduit elements (1, 1', 1'', 1''') that abut each other. A layer consisting of a sealing adhesive that bonds elastically is provided at least in the regions of the butt joints lying on the lower side when assembled, said regions forming an interconnection zone for adjacent conduit elements (1, 1', 1'', 1'''). Said adhesive, which bonds homogeneously to the material of the conduit elements (1, 1', 1'', 1'''), is compatible with the contaminants that are carried by the waste air. A type of trough is thus formed in the lower region of the conduit, said trough being composed of flat parts, in contrast to prior art, in which said trough comprises one-piece angular elements.
摘要:
A cooling device for fume intakes for exhausted gases from foundry furnaces comprises a flue pipe for extracting the fumes produced in premises containing a source of fumes, a cooling system consisting of a tube (3) made of steel lined in appropriate areas of its surface and length and wound in a spiral. In the tube (3) there circulates cooling water with a temperature of the water at entry and in operation kept constantly between 50 and 120°C, with a temperature variation between the inlet (4) and the outlet (5) of the tube (3) in a range of 10-30°C. The lining of the tube (3) may be made of special martensitic stainless steel, or of glassy alloy, or of Ni/Cr cermet.
摘要:
SUMMARY The present invention relates to polyisocyanate-based impregnating resin system, which is a liquid polyisocyanate mixture, containing more than 50 % by weight MDI based di- and polyisocyanates, and one or more, originally powdery inorganic hydroxides. The resin system of the invention is suitable for the preparation of prepregs. The invention relates also to the prepreg that can be manufactured with the use of the resin system, and use thereof. Among the uses of the invention one important is the use of the prepreg for lining chimneys.
摘要:
The invention relates to a gas-proof conduit designed in particular for evacuating waste air that carries contaminants from industrial processes, comprising delimiting peripheral walls, which are formed from essentially flat conduit elements (1, 1', 1'', 1''') that abut each other. A layer consisting of a sealing adhesive that bonds elastically is provided at least in the regions of the butt joints lying on the lower side when assembled, said regions forming an interconnection zone for adjacent conduit elements (1, 1', 1'', 1'''). Said adhesive, which bonds homogeneously to the material of the conduit elements (1, 1', 1'', 1'''), is compatible with the contaminants that are carried by the waste air. A type of trough is thus formed in the lower region of the conduit, said trough being composed of flat parts, in contrast to prior art, in which said trough comprises one-piece angular elements.
摘要:
The invention relates to a channel system (1) comprising a discharge channel (2) for a combustion gas of at least one combustion system (4) and at least one connection (12) for supplying the combustion gases of the at least one combustion system to the discharge channel. The invention also relates to a method for adapting an existing channel system comprising a discharge channel (2) for a combustion gas of at least one combustion system (4) and at least one connection (12) for supplying the combustion gases of the at least one combustion system to the discharge channel for obtaining a channel system according to the invention.