Abstract: A clothes dryer includes a housing, a back wall being joined to the housing, an at least approximately horizontally rotatably supported laundry drum having at least one bottom, and a bearing journal supporting the at least one bottom on the back wall. The bearing journal has a spherical bearing-relevant surface being secured to the back wall. The drum bottom has at least one bearing shell tightly embracing the spherical surface.

Abstract: A rotary kiln (10) is employed which is inclined downwardly from its charge end (12) to its discharge end (14) and has a maximum length to breadth ratio of 5:1. The interior space of the kiln (10) is heated by means of at least one burner (B1, B2) directed into the kiln from one end thereof to a substantially constant elevated process temperature. Material is fed into the kiln (10) so that it occupies a maximum of 10% of the cross-sectional area of the internal space of the kiln (10) at the charge end (12). Upon entering the kiln the material is subjected almost immediately to the required process temperature. As it moves along the bottom of the kiln (10) from the charge to the discharge end (14), heat transfer to the material is primarily by radiation from the combustion space and from the lining of the kiln (10).

Abstract: An impeller for a high-temperature gas blower suitable for a floating conveyor furnace, having vanes each formed of a dispersion-strengthened alloy which includes as a disperse or internal phase 0.1-2.0% by weight of finely divided particles of an oxide of a high melting-point metal, such as Y.sub.2 O.sub.3, Ce.sub.2 O.sub.3, ZrO.sub.2, Al.sub.2 O.sub.3 and Gd.sub.2 O.sub.3, preferably dispersed in an austenite matrix or external phase of Cr, Fe, Al, Ti and Ni. A gas blower having such impeller, and a furnace using such gas blower are also disclosed.

Abstract: It is an object of the present invention to provide a vertical heat treatment apparatus having a heat insulator, which has sufficient heat insulation, heat retention and high load pressure bearing properties to cope with increased size dimensions and number of layers of wafer workpieces and can be particularly advantageously used as a semiconductor and TFT substrate heat treatment apparatus. The apparatus features the use of a heat insulator casing 40 supporting a substrate holder 3 on its top and receiving a heat insulator 50 having numerous inner microspaces in its lower space, and defining a substrate holder or boat insulator receiving space A and a heat insulator receiving space B such that these spaces are hermetically sealed with respect to each other by the heat insulator casing.

Abstract: A heating device including a first exothermic member disposed below a subject to be heated for preventing heat radiation from the subject while heating the subject from below, a second exothermic member disposed above the subject for preventing heat radiation from the subject while heating the subject from above, and a base or sandwiching and supporting body for bearing the subject sandwiched between the first exothermic member and the second exothermic member while securing a space under the first exothermic member. The heating device is convenient to carry about and capable of easily heating a food or the like without rapidly generating a great amount of heat.

Abstract: In a pressurized fluidized bed boiler, furnace means is divided into at least two separate furnaces: a furnace with an evaporator and a superheater disposed therethrough, and a furnace with the superheater and a reheater disposed therethrough. The furnaces are accommodated in separate pressure vessels, respectively. Air is supplied into the pressure vessels through air pipes connected to the pressure vessels, where it is used for pressurizing the pressure vessels, and then supplied into the furnaces through their lower portions, where it is used as a combustion air. An oxygen concentration meter is mounted in an exhaust gas pipe in an outlet of the furnace, and an air flow rate adjusting valve 3 is mounted outside each of the pressure vessels.

Abstract: A circulating fluidized bed boiler comprises a fluidized bed combustion chamber, a recirculating system for recirculating fluidized solids through the combustion chamber, and a plurality of tubes for withstanding supercritical pressure are disposed around the walls of the combustion chamber for circulating cooling fluid between an inlet header at the bottom of the chamber and an outlet chamber at the top of the combustion chamber. A water steam separator directs steam to a superheater and is bypassed during normal operation.

Abstract: A cement kiln having a tire injection system. The tire injection system comprises an entrance chute having an outer end portion protruding outwardly of a wall of the kiln and an inner end portion which protrudes into the kiln. The entrance chute further is disposed such that it is positioned tangentially to the kiln wall. The entrance chute includes a gate assembly having a cam follower assembly and a pivotally mounted gate member. The cam follower assembly causes the gate member to be urged pivotally between open and closed positions in response to movement of the cam follower assembly over a cylindrical camming wall positioned at a predetermined location relative to the kiln. When the cam follower assembly has caused the gate member to open, a plurality of tires or other items forming a source of supplemental fuel are injected into the entrance chute by one or more external tire injecting apparatuses synchronized in operation to rotation of the kiln.

Abstract: A kiln or oven for producing ceramic products is described having a combustion chamber through which the ceramic products continuously pass, as well as a process for the operation and control of the kiln and the ceramic products perform a rotation about their own longitudinal axis in addition to the passage movement through the combusion chamber. The passage and rotation of the ceramic products takes place by means of a drive mechanism located in the kiln base with shafts projecting into the combustion chamber and located on an inventively designed receiving and holding device and can be regulated in infinitely variable and separate manner. The invention permits an effective, discontinuous operation of the kiln.

Abstract: Method and apparatus for reducing the NOX levels in stack emissions of compact boilers and fluid heaters through selective injection of exhaust flue gases into the combustion process. Flue gas injection into the primary and secondary air of the burner along with flue gas injection directly into the combustion process is utilized. Injection of generated steam from a compact boiler, selectively injected into the combustion process is also provided.

Abstract: An oven for drying the sealing compound on beverage and food can ends utilizes a prior art serpentine track along which a line of abutting can ends is conveyed through a drying chamber in which heated drying air is directed against the edges of the can ends through a plurality of linear nozzles. The improved apparatus of the present invention utilizes a drying chamber which substantially surrounds the track and includes a plurality of nozzles which direct a substantially uniform flow of drying air against all sides of the line of can ends. The improved apparatus is particularly effective in drying lining compounds on steel food can ends, but is suitable as well for the treatment of aluminum beverage can ends.

Abstract: Discloses a heat-insulating structure for combustion equipment of such a type that a burner element of combustion equipment is insertedly disposed at an installation opening of thermal equipment such as a boiler, with a view to simplified structure and enhanced workability. In combustion equipment (B) having a burner element (20) insertedly disposed at the installation opening (1) of the thermal equipment (A) via the support frame (30) a thermal insulator (50) flush with the burner element (20) on the thermal equipment (A) side is disposed between the installation opening (1) and the outer side face of the support frame (30).

Abstract: A device for treating material webs includes first and second neighboring drying cylinders separated by an intermediate space. The intermediate space has a length substantially equal to about twice the diameter of the largest of the first and second cylinders. The device includes at least a first deflecting roll disposed in the intermediate space and in a path of a material web conveyed through the device. The device further includes at least a second deflecting roll disposed below a coating device and above the intermediate space. The second deflecting roll is adapted to feed a web of material upwardly into the coating device.

Abstract: A process for drying a gas stream having a periodically fluctuating moisture content which assures that a predetermined dew point temperature is not exceeded at any time by conducting the gas stream through a moisture adsorbing medium having a reversible moisture adsorption capacity is greater than the average moisture content of the gas stream, and an apparatus for carrying out this process comprising a source of a flowing gas, such as air, which has a fluctuating moisture content, connected to a gas utilizing device via a chamber filled with an adsorbing medium which adsorbs moisture in a reversible manner and which has a moisture adsorption capacity which is greater than the average moisture content of the gas stream.

Abstract: The invention permits the application of an identifying mark onto a freeze-dried tablet without the need for application of pressure or for printing directly on the tablet. The invention comprises the preparation of a freeze-dried unit that is embossed with an identifying mark such as a manufacturer's logo, medicinal component strength, or other information relating to the unit. The desired identifying mark is first embossed onto the base of a container such as a blister pocket. Liquid suspension is then filled into the container and freeze-dried therein. The resulting freeze-dried unit in the container is thereby embossed with substantial copy of the identifying mark that was embossed on the base of the container. The embossed identifying mark on the base of the container remains thereon as well, providing at reduced manufacturing cost the added ability to learn the identifying mark on the enclosed freeze-dried unit without opening the blister pack.

Abstract: A drier having a boxlike housing (12) for receiving a hopper (13) therein which contains a batch of wet sludge. The hopper (13) cooperates with the housing, when closed therein, to define a closed air recirculation system which supplies dry pressurized warm air into an air-receiving chamber (79) located at the bottom of the hopper. The air passes upwardly through a perforated bottom wall (78) into and through the sludge to remove moisture therefrom. The moist air passes upwardly through the open top of the hopper, through a filter and is supplied to a drying unit (34) located in the housing for removing moisture therefrom, which moisture is externally discharged. The drying unit resupplies the dry air back to the drying chamber formed in the hopper.

Abstract: A method and apparatus for continuously feeding hazardous waste fuels having a relatively high solids content to a rotary cement kiln by delivering the fuel to a feed hopper with screw-conveyor which transfers the fuel to a filling zone where a piston pump capable of pumping a composition having a solids content of at least 40% with particle sizes up to a maidmum of 2 inches continuously charges the fuel through a conveyance tube into a feed tube which introduces the fuel into the kiln through the feed end housing.

Abstract: An equipment for precalcining any mineral materials whatsoever comprising a precalciner consisting of a combustion chamber communicating through a passage-way with a reaction chamber itself communicating via a duct with a separation cyclone, the reaction chamber being fed with smokes issuing from a firing furnace and three ducts feeding with hot air issuing from a cooler the combustion chamber, a voluted casing at the level of a burner and said duct, respectively, the equipment in particular permitting the manufacture of cement clinker while greatly minimizing the emission of nitrogen oxides.

Abstract: A new and improved foot dryer comprised of a housing. A securement spring is secured within the housing. The securement spring has an end portion extending outwardly of the housing. An intake vent is secured within the housing. A pair of vents are secured within the housing. The housing functions to be installed within the floor of a bathroom. A pressure activated limit switch is secured within the housing opposite the intake vent. The pressure activated limit switch has a pressure rod secured to the limit switch and extending out of the container. A timer is electrically secured to the pressure activated limit switch. The timer has a thirty second limit. A heating element is secured within the housing. A wire electrically secures the heating element to the timer. A fan is secured to the intake vent of the housing. A wire is electrically secured to the fan and to the timer.

Abstract: The invention relates to a single pass airflow apparatus for cooling and drying corrugated product having open flutes, comprising an airflow exhaust duct having a first cross-sectional area, an inlet plenum with a cross-section area greater than the airflow exhaust duct and having an exit in airflow communication with an inlet to the airflow exhaust duct. The plenum has an open faced chamber abuttingly facing the stack of corrugated product which presents the open flutes to the plenum. A fan is provided for drawing airflow through corrugated product into the plenum and from there into airflow exhaust duct from whence the drawn air is exhausted to atmosphere. The invention is directed to the structure and to the method of its use.