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序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
61 Method for the closed-cell expansion of mineral material US14349984 2012-10-04 US09809495B2 2017-11-07 Ernst Erwin Brunnmair
The invention relates to a method for producing an expanded granulate from sand grain-shaped mineral material (1) with a propellant, wherein the material (1) is fed into a vertically upright furnace (2) from above and said material (1) falls along a drop section (4) through multiple heating zones (5) in a furnace shaft (3) of the furnace (2), wherein each heating zone (5) is heatable using at least one independently controllable heating element (6), and the material (1) is heated to a critical temperature at which the surfaces (7) of the sand grains (15) plasticize and the sand grains (15) are expanded by the propellant. In order to enable setting a closed surface of the expanded granulate in a purposeful fashion, it is provided in accordance with the invention that upon detection of a first reduction in the temperature of the material (1) between two successive positions (9) along the drop section (4) the heating elements (6) are controlled along the remaining drop section (4) depending on the critical temperature.
62 PLANT AND METHOD FOR MELTING METAL MATERIALS US15115824 2015-01-30 US20170171919A1 2017-06-15 Bernard VILLEMIN; Stefano MORSUT; Andrea CODUTTI; Fabio GUASTINI
Plant for melting metal materials comprising at least a heating unit (11) provided with a container (13) to contain the mainly metal materials and with at least an induction heating device (22) configured to heat the mainly metal materials contained in the container (13). The plant also comprises a transfer unit (25) disposed downstream of the heating unit (11) and configured to move, substantially continuously, the mainly metal solid materials exiting from the heating unit (11) to a melting furnace (12). The container (13) is provided with an aperture (16) through which the mainly metal material, heated and in a solid state, is discharged onto the transfer unit (25), and opening/closing members (17) are associated with the aperture (16), commanded by an actuator (19) and configured to open, close and choke the aperture (16) in order to regulate the delivery of the metal materials that is discharged onto the transfer unit (25).
63 Continuous furnace system US14225504 2014-03-26 US09523136B2 2016-12-20 Chang Lung Tseng
A furnace system includes a pre-heating device disposed on a conveyer device, a heating member disposed in the pre-heating device for pre-heating the work piece, a furnace facility located behind the pre-heating device and having a heating zone, a carburizing zone for carburizing the work piece, a diffusing zone and a temperature decreasing zone for lowering the temperature of the work piece, and a cooling zone for lowering the work piece to a room temperature, the furnace facility includes a front door and a rear door and one or more intermediate doors for confining the work piece within the furnace facility, and a heating element is disposed in the furnace facility for pre-heating the work piece.
64 HOT MELT ADHESIVE SUPPLY AND METHODS ASSOCIATED THEREWITH US15043285 2016-02-12 US20160236230A1 2016-08-18 Christopher R. Chastine; Justin A. Clark; Peter W. Estelle; Howard B. Evans; Charles P. Ganzer; Manuel A. Guerrero; Enes Ramosevac; John M. Riney; Sang Hyub Shin; Leslie J. Varga
A melter for heating and melting particulate hot melt adhesive into a liquefied form is disclosed. The melter includes a heated receiving device having an interior with an inlet configured to receive the particulate hot melt adhesive and an outlet. A flexible hopper holds a supply of the particulate hot melt adhesive and a particulate hot melt adhesive feed device allows the particulate hot melt adhesive to be directed from the flexible hopper to the inlet of the heated receiving device.
65 REMELTING FURNACE WITH A WEIGHING CELL US14872717 2015-10-01 US20160097594A1 2016-04-07 Ivaylo POPOV; Ralf Oehler; Walter Nilius
A remelting furnace is disclosed. An electrode rod drive with an electrode rod, as well as a retaining ring to retain a high-current cable, are arranged on a platform which is located on a weighing cell. Even though the position of the high-current cable changes during lowering of the electrode rod supporting a consumable electrode, the recorded weight portion of the high-current cable remains the same, which means that ultimately the change in the weight of the consumable electrode can be determined with the weighing cell.
66 Curing systems for materials that consume carbon dioxide and method of use thereof US14209238 2014-03-13 US09221027B2 2015-12-29 John P. Kuppler; Vahit Atakan; Kenneth Smith; Xudong Hu
The invention provides a curing system that is useful for curing materials that consume carbon dioxide as a reagent. The system has a curing chamber that contains the material to be cured and a gas that contains carbon dioxide. The system includes apparatus that can deliver carbon dioxide to displace ambient air upon loading the system, that can provide carbon dioxide as it is needed and as it is consumed, that can control carbon dioxide concentration, temperature and humidity in the curing chamber during the curing cycle and that can record and display to a user the variables that occur during the curing process.
67 CONTINUOUS FURNACE SYSTEM US14225504 2014-03-26 US20150275325A1 2015-10-01 Chang Lung TSENG
A furnace system includes a pre-heating device disposed on a conveyer device, a heating member disposed in the pre-heating device for pre-heating the work piece, a furnace facility located behind the pre-heating device and having a heating zone, a carburizing zone for carburizing the work piece, a diffusing zone and a temperature decreasing zone for lowering the temperature of the work piece, and a cooling zone for lowering the work piece to a room temperature, the furnace facility includes a front door and a rear door and one or more intermediate doors for confining the work piece within the furnace facility, and a heating element is disposed in the furnace facility for pre-heating the work piece.
68 CURING SYSTEMS FOR MATERIALS THAT CONSUME CARBON DIOXIDE AND METHOD OF USE THEREOF US14209238 2014-03-13 US20140322083A1 2014-10-30 John P. Kuppler; Vahit Atakan; Kenneth Smith; Xudong Hu
The invention provides a curing system that is useful for curing materials that consume carbon dioxide as a reagent. The system has a curing chamber that contains the material to be cured and a gas that contains carbon dioxide. The system includes apparatus that can deliver carbon dioxide to displace ambient air upon loading the system, that can provide carbon dioxide as it is needed and as it is consumed, that can control carbon dioxide concentration, temperature and humidity in the curing chamber during the curing cycle and that can record and display to a user the variables that occur during the curing process.
69 System and Method for the Calcination of Minerals US12295468 2007-04-02 US20110008227A1 2011-01-13 Mark Geoffrey Sceats; Connor James Horley; Patricia Richardson
A system and method for the calcination of minerals. The system comprises a vertically disposed reactor segment configured to impart horizontal forces on particles passing through the reactor segment in a vertical direction; an injector unit for receiving granular feedstock, the injector unit being disposed at a top portion of the reactor segment, whereby granules of the feedstock move through the reactor segment in a granular flow under at least one of a group consisting of a force of steam, gravitational force and a centrifugal force; a reactor heat exchange unit thermally coupled to a wall of the reactor segment for providing heat to the flowing granules inside the reactor segment through heat transfer through the wall of the reactor segment; one or more inlets formed in the reactor segment for introducing a superheated gas into the reactor segment to create conditions of a gas-solid multiphase system; and one or more exhaust openings formed in the retort segment such that gas products are at least partially flushed from the reactor segment under the flow of the superheated gas from the inlets to the exhaust openings.
70 Oven for dehydrating pulverulents, sand or granules US347897 1989-01-06 US5013237A 1991-05-07 Rene Bergounhon
Oven for dehydrating pulverulents, sand or granules, comprising an energy-saving dehydration device, adapted to gypsum burning. The device consists of an outer casing, an inner casing and flow cones disposed on said casings. A burner and a lock complete the device. Pressure within the oven is increased by the provision of a cover, a gypsum lock and a steam valve. The process takes place in dry or moist conditions, the latter being advantageous for the processing of insulating products or for gypsum amending the nature of plaster. Heat exchange enables the products to be processed at low temperatures. The central combustion chamber prevents loss by radiation. Application to gypsum burning, during which the device has demonstrated energy savings of 50% in comparison with traditional appliances.
71 Method of operation of a cupola US658477 1976-02-17 US4045212A 1977-08-30 Isidore Hodes
Conventional cupola apparatus and its operation are modified by suppressing the entrance of external air to the cupola and replacing the nitrogen component of the air injected into the conventional cupola with a recycled fraction of the cupola gas consisting substantially of CO and CO.sub.2 withdrawn from the cupola at a point above the melting zone and replacing the oxygen component of the air with externally supplied substantially pure oxygen. The remaining fraction of the cupola gas is exhausted from the cupola system. When the cupola is thusly operated on a steady state basis, a balance is maintained so that the atomic amount of the oxygen exhausted from the system is equal to the atomic amount of the injected oxygen.
72 Automatic feed-upright ore furnace US41983773 1973-11-28 US3876189A 1975-04-08 JACKSON DENNIS H; ZAVAL DARRELL S
A volatilizing furnace for recovering metals from their ores includes an elongate upright cylindrical retort chamber, means for introducing the ore into the upper end of the retort, and means for withdrawing the ore gangue from the bottom of the retort. A metal vapor collector conduit is coaxially located with the retort and has spirally arranged aperture for collecting metal vapor under transverse channels extending radially outwardly from the conduit across the retort above each of the apertures. The volatilized metal is withdrawn from the upper end of the collector conduit. A furnace surrounds the retort for heating the retort walls to transfer heat to the ore and volatilize the metal.
73 Method of melting iron with lumps of carbon coke US3770418D 1971-05-21 US3770418A 1973-11-06 WILDE T
Metallurgical coke is made from carbon particles by heating the particles to shrink them. Thereafter, the shrunk carbon particles are mixed with a carbonaceous binder and formed into lumps which are heated in a non-oxidizing atmosphere to drive off volatiles and carbonize the binder. Such coke used for melting iron takes less air, less fuel and permits lower bed heights than conventional fuel.
74 Method of operating a cupola furnace US3630719D 1969-04-01 US3630719A 1971-12-28 CRAIG ROBERT C
The formation of an explosive gas mixture in the operation of a ferrous metallurgical furnace such as a vertical cupola furnace or the like is prevented, by injecting an inert gas stream into the upper part of the furnace below the charge inlet, to prevent air from flowing into the upper part of the furnace through the charge inlet, and thereby preventing the formation of an explosive gas mixture of air with process gas, which is rich in carbon monoxide and is withdrawn from the side of the furnace below the upper charge inlet.
75 Process for manufacturing iron or steel with low sulphur content US3427150D 1966-08-09 US3427150A 1969-02-11 NIEHAUS CONRAD F
76 Shaft furnace US4136160 1960-07-07 US3094316A 1963-06-18 TURIN JOHN J
77 Pellet furnace US75548158 1958-08-18 US3003756A 1961-10-10 LEA STEFFENSEN PERCY
78 Pressurized cupolas US22219051 1951-04-21 US2687294A 1954-08-24 REECE HERBERT A
79 Means for heat treating material US25130128 1928-02-02 US1890662A 1932-12-13 GREENE FRANK C
80 Economizer furnace for mineral wool production US29721628 1928-08-03 US1828293A 1931-10-20 POWELL EDWARD R
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