Abstract: A chain conveyor in which two chains are connected together by scrapers and circulate in a casing, which are guided around rollers. In the direction of movement of the chain, in front of and above the entry of the chain into a roller, a shaped component is provided. The latter penetrates into the roller over a portion of the roller circumference. On its side remote from the roller, the shaped component is equipped with a deflector surface pointing towards the interior of the casing, the front edge of which surface is aligned with the shaped component.

Abstract: A support stand for bearings for rotating shafts in which a supporting plate carries the bearing and rests on a spring. The latter is resilient in the direction of the shaft, and is substantially rigid in a plane perpendicular to the shaft. The supporting plate is parallel to a horizontal plane passing through the shaft. The spring may be in the form of a double spring, and the bearing may be constructed as a single self-aligning roller bearing. When using a single spring in combination with the bearing, a relative movement of the bearing housing exclusively about the shaft axis is obtained. The spring is pre-loaded in the shaft direction, and an auxiliary spring may be supported outside the bearing support stand and pressed in the shaft direction against the stand. A bottom and top spring may be provided and connected by struts. The springs, moreover, may be made of structural iron having a I-profile.

Abstract: A nozzle for a fluidized bed firing system in which a pipe for transporting coal/air mixture has an end surrounded by a hood. This pipe extends into the fluidized bed, and an axial exit opening is located between the hood and the pipe. The pipe, moreover, is provided with that axial exit opening, while the hood is spaced from this exit opening. A deflecting face, moreover, is located in a vicinity opposite to the exit opening. A downwardly-pointing baffle is attached underneath a lower edge of the hood, to the pipe so as to be adjustable in height. The deflecting face may be in the form of a cone with a tip pointing towards the exit opening of the pipe. The hood may be provided, furthermore, with a hemispherical cap.

Abstract: A wet ash remover which has a trough arranged underneath the ash funnel of a boiler and is filled with quenching water. A quenching water feed and an overflow are also provided. Ash conveying equipment passes through the wet ash remover. A cooling device with quenching water circulating through it continuously, is located between the overflow and the quenching water feed. One or more sets of parallel oblique plates are located inside the trough in front of the overflow. The set or sets of plates may extend throughout the entire length side of the wet ash remover. The plates may be inclined 50 to 60 degrees from the horizontal, and the planes may be planar. One of the sidewalls of the displaceable trough is connected detachably to the remainder of the trough and rigidly to stationary supports; the sidewall is at least as long as the immersion piece of the ash funnel protruding into the trough. The sidewall may accommodate the overflow and the set or sets of plates.

Abstract: A tube mill operated under superpressure in the milling chamber is sealed by means of blocking air, which is made available in a blocking air chamber (9) arranged on the stationary part of the journal (2) of the tube mill. A blocking air channel is provided between the stationary and the rotating part of the tube mill and joins the blocking air chamber (9) to the milling chamber. The blocking air channel contains an inclined extending section (19), which is arranged at an acute angle to the longitudinal axis of the tube mill.

Abstract: A steam generator in which a main boiler is provided and at least one fluidized bed furnace is connected with the main boiler and is operated independently of the furnace of the main boiler. The fluidized bed furnace is connected with the main boiler underneath the boiler funnel. The tubes of the boiler funnel are partially fanned out and form flue gas passages, through which the flue gas of the fluidized bed furnace flows into the combustion chamber of the main boiler.

Abstract: A burner for solid fuel in pulverulent form has a central conduit for primary combustion air, a fuel conduit surrounding the central conduit for admission of the pulverulent fuel, and one (or two concentric) secondary-air outer conduits. The annular space between the fuel conduit and the single (or the innermost) outer conduit is subdivided into two annular channels by an intermediate conduit. An inlet arrangement is provided for feeding combustion air into one of these channels, and another arrangement permits the selective feeding of either only combustion air, or of a mixture of such air with pulverulent fuel, into the other of the annular channels.

Abstract: An arrangement for raising and lowering a floating offshore platform having legs which are movable relatively to the platform. The legs, in the operating condition, are supported on the bottom of the sea, and a jacking device is blocked against downward movement whenever the floating platform is at a highest point of sea wave motion in a touched-down position of the legs. The jacking device may be in the form of rope winches, with the drive of one jacking device being switched off and the rope winch of the other jacking device being released in take-up direction, while being blockable in payout direction in touched-down position of the legs.

Abstract: An arrangement for the burning of materials having components that are difficult to burn out and which tend to be adhesive upon heating. A turbulent layer is formed and connected with a combustion chamber for burning the materials. Combustion air is distributed to the turbulent layer and the combustion chamber for removing a portion of heat that is released, so that the combustion chamber retains a minimum temperature above a predetermined level. A contact chamber is connected to the turbulent layer and communicates with the combustion chamber. A constricting collar is provided with nozzles for applying combustion air.

Abstract: A wet deasher arrangement in which a trough is filled with quenched water and is arranged underneath an ash hopper of a boiler. The trough is provided with a quench water feed as well as an overflow and ash conveying equipment. The quench water is permanently circulated through a cooling unit with the aid of a pump, and the cooling unit is arranged between the overflow and the quench water feed. Oblique parallel plates are arranged within the trough before the overflow. The cooling unit has heat exchanger tubes divided into sections which are swept successively by quench water. They are accommodated in a pump upstream tank which precedes the pump. The upstream tank is obliquely arranged and converges to an outlet opening. The sections of the cooling unit may be arranged above each other within the pump upstream tank.

Abstract: An arrangement for pressure gasification of fine-grain coal in which the exit of a reactor is followed by a waste heat boiler for cooling the generated gas. The waste heat boiler has a radiation section and downstream heat exchanger surfaces. The reactor is provided, furthermore, with cooling cubes which are studded and lined with refractory ramming mix. The radiant type heating surfaces are sized so that the gas temperature at the exit of the radiation section is situated below the ash sintering temperature of the coal being used. On gas sides, the radiation section is followed by a pressure vessel accommodating convection type heating surface banks which are swept by the generated gas. The radiation section may be in the form of two gas passages through which the gas flows successively. These gas passages are formed by the tube walls welded between each other in a gas-type manner.

Abstract: An off-shore platform of the self-erecting type has a floating deck provided with legs which can be raised and lowered and on which the platform is jacked up after they rest on a base structure placed onto the ocean floor. Each of the legs is guided within the deck in two vertically spaced bearings, the upper one of which is universally yieldable so that the leg can pivot about a center point of this bearing and the lower one of which is yieldable only in radial direction and provided with an annular space surrounding the leg and into which compressible or incompressible flowable medium can be introduced at will so as to allow the bearing either to yield or else to prevent it from yielding.

Abstract: A steam generator has a combustion chamber through which a bundle of steam-generating tubes extends generally horizontally. Air nozzles extend upwardly through the bottom wall of the steam generator and the spacing between the air outlets and the bundle of steam-generating tubes can be adjusted to thereby vary the level at which the fluidized bed is located within the chamber, and to consequently have the bundle of tubes located completely or only partially within the fluidized bed.

Abstract: A deasher arrangement in which a water-filled trough is arranged beneath the ash hopper of a boiler. The trough is laterally movable, and accommodates a conveying device. A lifting device is provided with a lift corresponding at least to the boiler expansion. The trough is associated, furthermore, with a dipping element connected to the ash hopper and permanently extending into the water fill of the trough during operation of the boiler. The trough consists of two sections separated by a partition wall, and accommodates one conveying equipment each. The partition wall has a height which is lower than the side walls of the trough. The top of the partition wall is situated above the bottom of the dipping element when the boiler is in operation and the trough is raised. An additional partition wall may be provided with a collecting tray therebetween.

Abstract: An arrangement for hydraulic transport of precipitator dust in a precipitator plant, which is provided with several hoppers. These are consecutively arranged in flow direction of the gas to be cleaned passing through precipitator cells. The hoppers are located underneath a discharge device, and are provided with a sluice chamber having an inlet for rinse water and an outlet for a mixture of rinse water and precipitator dust. The exit of the sluice chamber of the rear hopper, in gas flow direction, is connected with the inlet of the sluice chamber of the preceding hopper by one sluiceway each. The sluice chamber of the last hopper, only, is supplied with fresh rinse water. The outlet gutter following the exit of the sluice chamber of the first hopper, may be closed by a weight-loaded flap.

Abstract: Apparatus for monitoring the temperature of adsorbers formed from several segments in which a traveling carbonaceous fill is located between two perforated walls, through which the gas to be cleaned flows. Each segment has on the gas outlet side several measuring elements, responding at a predetermined temperature and distributed over the height and width of the exit cross section. These measuring elements are electrically connected in series and their lead-ins are connected to a power source and an indicator instrument located outside the segment. On the outside perforated wall, insulators are located, with a continuous soldering wire placed between them. Prefabricated fusible cutouts may be used as measuring elements and may be connected by electrical lines. Semiconductor resistors may also be so used. Each segment may have a thermocouple on the gas exit side which can travel throughout the entire height of that side. Separately charged ntirogen lines may be provided for cooling.

Abstract: A safety device for an oil burner includes a pump which has a drive cylinder portion with a double-acting piston movable therein which is connected through a connecting rod to a suction piston portion which is movable in a suction portion of the pump cylinder. The oil burner is supplied with fuel oil from a supply line having a shutoff valve or valves which are connected through a suction line to the suction part of the piston. The suction portion is connected through a check valve to a return line and the drive cylinder is connected on respective opposite sides of the piston through valve means for regulating the movement of the drive piston so that it moves after the burner is turned off to displace the suction piston to effect a suction on the supply line to the oil lance of the burner so as to withdraw the oil therefrom.

Abstract: A process for thermal regeneration of charged activated coke or activated carbon granulate, in which the granulate is preheated in a preheating zone, and is then heated in a heating zone of a traveling bed by direct contact with a heated stream in the form of a partial stream of desorption gas expelled from the granulate. The granulate is then cooled in a cooling zone immediately after leaving the heating zone. The preheating and cooling procedures are carried out by using a heat exchange medium which is separate from the heated stream in the heating zone.

Abstract: A blower-beater mill for drying and milling material with a beater body and impeller arranged on the mill shaft. The beater arms of the beater body are fastened between hub rings on the shaft and water cooling is applied along the longitudinal axis of the mill shaft. The shaft is enclosed by a casing which extends to the impeller and is spaced from the shaft. In the region of the beater body, the casing has openings for the beater arms. The mill shaft also has hub rings between the beater body and the impeller. The casing is made up of U-shaped rings which overlap one or several hub rings. The rings have vertical legs inserted into passages between the hub rings. A passage behind the beater portion may be enlarged for fitting insert pins in the direction of the hub pins and lock washers may be placed between the front faces of the insert pins and the side faces of the hub rings. A gap may be located between the deflection disk of the impeller and the last U-shaped ring.

Abstract: A support stand for bearings for rotating shafts in which a supporting plate carries the bearing and rests on a spring. The latter is resilient in the direction of the shaft, and is substantially rigid in a plane perpendicular to the shaft. The supporting plate is parallel to a horizontal plane passing through the shaft. The spring may be in the form of a double spring, and the bearing may be constructed as a single self-aligning roller bearing. When using a single spring in combination with the bearing, a relative movement of the bearing housing exclusively about the shaft axis is obtained. The spring is pre-loaded in the shaft direction, and an auxiliary spring may be supported outside the bearing support stand and pressed in the shaft direction against the stand. A bottom and top spring may be provided and connected by struts. The springs, moreover, may be made of structural iron having a I-profile.