Abstract: A parameter, especially the temperature of the bed in a fluidized-bed furnace, is maintained constant by a regulator (24) positioned in a line (20) that supplies fluidizing air to a trap (15), through which solids that have been precipitated out of the flue gas are recirculated into the fluidized bed (5). The servo mechanism (23) that drives the regulator is coupled to a temperature sensor (27) in the bed such that the volume of fluidizing air is increased when the measured bed temperature exceeds a prescribed level and decreased when it drops below that level.

Abstract: The drying system includes an air compressor, a compressed air storage tank, a pressure reducing device, a manifold, a heat device, two delivering devices, an electromagnetic control device and a plurality of drying apparatuses. The control device actuates the delivering devices to let out hot and cool air alternatively. Each of the drying apparatuses includes a housing with a top portion, an intermediate portion and a base portion. An air buffer chamber is supplied by the delivering devices, is disposed in the base portion of the housing. A plurality of air distributing devices is respectively disposed in the top portion, the intermediate portion and the base portion. The air buffer chamber has a plurality of tubes with branches respectively and correspondingly connected to the air distributing members. A water guiding device is disposed on top of the base portion of the housing. The housing also has a plurality of air outlets to let out regulated air with uniform pressure.

Abstract: A nozzle arrangement in a blow box of a paper machine, comprising one or several nozzles (22a, 22b) placed in connection with the blow box (20) or pipe, through which nozzles a blowing of air can be applied to a moving member in a paper machine placed in their proximity, such as a wire, drying cylinder, guide roll, felt, or the equivalent. The blow box (20) and its nozzles (20a, 20b) are at a certain operational safety distance (C) from the moving member. In connection with the nozzle slots of the nozzles (22a, 22b) or nozzle, a respective nozzle flap (24a, 24b) pivotable around a respective transverse hinge shaft (P) is hinged. The nozzle flaps (24a, 24b) respectively guide the blowing of air (F.sub.a, F.sub.b) to the desired object and if necessary maintain a required difference in pressure.

Abstract: A gas combustion type dryer is provided wherein a liquefied gas is ignited by electric discharge and combusted to forcibly blow out heated air by a fan, while eliminating adverse effects of remaining heat after the stop of fan operation and maintaining the gas pressure constant. A temperature controller is provided together with a combustor within a blowing barrel of a dryer main body, and a pressure regulator is provided together with a liquefied gas tank within a handle. The pressure regulator is coupled to the combustor with the temperature controller interposed therebetween.

Abstract: A rotary wafer drying apparatus comprises a rotatable rotor for applying centrifugal force to the wafers, and a motor for rotating the rotor. A pair of cradles, attached to the rotor, receive a plurality of wafers arranged vertically. When the wafers are to be dried, the cradles are rotated by about 90.degree. from the state of reception, with the wafers maintained approximately at the horizontal state. When wafers of different diameters are to be dried and the size of the cradles should be changed correspondingly, not the rotor itself but only the pair of cradles in the rotor are changed.

Abstract: A once-through stem generator includes a vertical gas flue having a total given height, a bottom, a lower part having a height equal to less than 70% of the total given height, an upper part, and fossil fuel burners disposed on the lower part. The lower and upper parts are formed of gas-tight tube walls with tubes. The tubes of the lower part rise obliquely, while the tubes of the upper part are vertical. The lower part has a lower end limited by the bottom, and the upper part has an upper end limited a partition of the vertical gas flue, by a cross-sectional restriction of the tube walls, or by a lower edge of a heating surface within the vertical gas flue.

Abstract: Disclosed is a furnace in which the inside of the furnace is enclosed by a furnace wall having an inner surface lined with a heat insulating material. Heaters for heating an inside of the upper furnace chamber to a predetermined temperature, and an upper turntable supported so as to be rotatable horizontally and arranged to mount works on an upper surface thereof are provided in the upper furnace chamber. Other heaters for heating the inside of a lower furnace chamber to a predetermined temperature, and a lower turntable supported so as to be rotatable horizontally independently of the upper turntable and arranged to mount works on an upper surface thereof are provided in the lower furnace chamber. Delivery of a work from/to the outside of the furnace to/from each of the upper and lower turntables is performed by insertion of a fork through an opening formed in a predetermined position of the furnace wall.

Abstract: A portable and highly maneuverable nozzle dryer for assisting in the drying of vehicles and for covering difficult-to-reach areas and surfaces of the vehicle. The dryer includes a free standing support and a self-contained air nozzle assembly which is rotatably mounted to the support by a universal joint assembly. By combining the blower and nozzle housing into a one-piece design, efficient air movement is made possible. The booster dryer is portable and may be positioned at any location along the wash line to add drying power during high volume wash days. Moreover, the maneuverability of the dryer permits the positioning of the air outlet at any desired location to reach difficult drying areas or surfaces thereby reducing manpower requirements.

Abstract: An apparatus and method are disclosed that aid an accessory of an automobile wash system in being positioned accurately with respect to a particular automobile's width. The system consists of an abutment that is positioned within the path of the conveyed automobile and which will be pivoted out of the path by contact with the automobile. The extent of the pivoting of the abutment from the path of the automobile will give an indication of the width of the automobile. A hydraulic circuit communicates this information to a hydraulic cylinder that controls the positioning of the accessory and can position the accessory to account for the width of the individual automobile. An electronic sensor system is positioned downstream of the accessory and will sense when the automobile has left the automobile wash assembly, at which time the sensor will initiate a signal that returns the members to their original position.

Abstract: A modular door jamb and lintel system for an industrial furnace having an access door opening. A module is provided with a pair of spaced, generally vertical door jambs of precast refractory material. A refractory lintel spans the door jambs and combines therewith to define a frame for the access opening. Hangers are provided on the lintel to facilitate transporting and installing the lintel in position at the access opening. Fasteners are provided on at least the door jambs to facilitate securing the door jambs to appropriate structural members about the access opening.

Abstract: An incinerator having a horizontal burn disk which is rotatably supported within the lower portion of a firebox with a portion of the firebox containing water tubes connected to a water circulation system including a header and a steam drum. Compacted material for burning is gravity fed to the burn disk througha vertical feeding chute of sufficient height to effect the compaction. Combustion air is forced into the burning material through stationary nozzles disposed about the periphery of the disk, and a nozzle stationary nozzle extending up through the center of the disk.

Abstract: A hair-drying system for use primarily in homes and other locations which employs a central forced air blower to disperse air through an air ducting system to air terminals disposed primarily in bathrooms. The air terminals are covered over when in the non-operative position. Upon physical and electrical coupling of a hair-drying unit to the air terminal, which hair-drying unit is comprised of a dryer and a flex tubing, air will be delivered through the flex tubing to the dryer, since the flex tubing is in fluid connection with both the air ducting system and the dryer. An optional damper(s) can be employed to limit air flow. Heat is applied to the air by a dryer mounted switch controlled resistance heater. The electrical energy to operate the dryer is obtained from a grounded electrical outlet mounted adjacent the cover plate of the air terminal. If 110 volt AC is used to power the dryer, the electrical connection would be via a ground fault interrupter to prevent injury.

Abstract: A method for treating ash produced by waste coal fluidized bed boilers in which hot ash fines and heated secondary air are introduced into the boiler as the coarse ash is cooled. An ash treatment system for cooperation with a fluidized bed boiler operating on waste fuel having a high ash content receives and classifies hot ash from the boiler, returns ash fines to the boiler, cools coarse ash fines for disposal and burns carbon associated with the ash received from the boiler.

Abstract: A dryer exhaust vent having a rectangular body bounding an air passage for the exiting moisture laden air from the dryer, in which multiple vanes for blocking reverse flow through the vent are pivotally mounted in the body opening which opens into the air passage so that the vanes pivotally traverse within the protective confines of the body and are not adversely effected by the weather, vandalism or the like.