Abstract: An inclined chamber of a coke oven is defined by a heating side wall, a coke removal side, a horizontal chamber ceiling and a chamber floor inclined downwardly from the heating side wall to the coke removal side. Briquettes are charged into the chamber, through charging holes in the heating side wall arranged vertically one above the other and through charging holes in the chamber ceiling arranged one behind the other, in separate inclined fill layers. The charging operation is through separate charging holes, in a sequence from the lowermost charging hole in the heating side wall to the uppermost charging hole therein, and then from the chamber ceiling charging hole closest to the heating side wall to the chamber ceiling charging hole furthest therefrom. The vertical and horizontal spacing between adjacent charging holes is dimensioned to avoid breakage of the briquettes.

Abstract: A polymer material in liquid form is continuously extruded through the spinning nozzles of a spinning head to thereby form filaments which drop downwardly through a blowing shaft positioned beneath the spinning nozzles. The filaments are entirely cooled, solidified and recrystallized during passage of the filaments through the blowing shaft. A drawing off roller in the form of a guide roller is located at the lower end of the blowing shaft to draw the filaments laterally from the blowing shaft, over a guide roller, and substantially vertically downwardly from the guide roller to a winding machine whereat the filaments are wound up. The winding machine is preferably located laterally of the blowing shaft, with the guide roller positioned at a level which is higher than the level of the drawing off roller. Thus, the filaments move from the drawing off roller to the guide roller in an upwardly inclined direction.

Abstract: A track rail support includes ties positioned at spaced intervals along a base and supporting track rails. An elongated intermediate carrier is positioned between the ties and each track rail. Secondary track rail supports in the form of block-shaped elements are positioned in contact with the intermediate carrier. Each block-shaped element is positioned above a position midway between two adjacent ties.

Abstract: An untreated crude gas is passed through a heat emitting portion of an indirect heat exchanger and thereby cooled, and then passed to a scrubber and further cooled to a separation temperature lower than the boiling points of impurities, whereby the impurities are condensed and removed, thus forming a treated crude gas. A compressor subjects the treated crude gas to impact condensation, thus removing residual impurities. The treated crude gas is then passed through a heat absorbing portion of the heat exchanger and heated by the untreated crude gas to a temperature approximating the initial untreated crude gas inlet temperature.

Abstract: A door is of the type wherein the weight of the door causes locking thereof against a door frame. The door frame is of the type having extending outwardly therefrom vertically spaced pairs of support hooks for supporting the door. The door includes a door element adapted to be sealed against the door frame. A pair of vertically spaced horizontally extending locking bars are carried by the door element. Each locking bar has opposite round ends adapted to rest on and be held by a respective pair of support hooks. A pair of locking support members, one each associated with a respective locking bar, are mounted for vertical sliding movement along the door element. Each locking bar is pivotally connected to the respective locking support member about a respective horizontal axis such that upon positioning the locking bars on the respective hooks, the weight of the door will cause the locking bars to pivot about the respective pivot axes in directions away from the door element.

Abstract: A valve chamber which communicates through flue openings with bottom flues has therein a pair of dosing frames, each mounted on a pivot and movable thereby between a closed position against the openings and an open position withdrawn from the openings. Each pivot is attached to one end of an elongated eccentric member to the other end of which is attached a spring which urges the respective dosing frame to the closed or open position thereof. One or two pull rods are attached to the eccentrics to sequentially move the closed dosing frame away from the openings to the open position thereof, and to then move the open dosing frame to the openings to the closed position thereof.

Abstract: A gas pipe has positioned in the interior thereof, and along the entire length thereof, a loose gas displacement body formed of an incombustible material, such as mineral wool or glass wool. The body may be a hollow cylinder divided longitudinally, and further divided into partial bodies placed within the pipe in serial succession.

Abstract: A support is pivoted to a frame and supports a first hydraulic drive for actuating movable jaws to engage removing latches of a door to be removed. The support also supports a separate second hydraulic drive for locking or unlocking a door locking device of the door. A separate third hydraulic drive is connected between the frame and the support for pivoting the support and a removed door suspended thereby with respect to the frame.

Abstract: Exhaust gases containing residual nitric oxide constituents from a processing operation are maintained at an elevated pressure, heated to from 260.degree. C. to 340.degree. C. in a separate heat exchanger, and subjected to multi-stage catalytic reduction with ammonia to produce purified exhaust gases. The pressure of the thus purified exhaust gases is then relieved in an expansion turbine.

Abstract: Coal is first fed into the oven chamber through a plurality of first filling units of a charging truck into first filling openings until the bases of the resultant cone-shaped charges are approximately in contact. Thereafter, coal is fed through a plurality of second filling units of the charging truck into a plurality of second filling openings positioned between adjacent first filling openings. The above operations are repeated until the oven chamber is filled. The coarser coal is thus distributed in a plurality of diagonal layers in the oven chamber. Filling gas is removed from the oven chamber during feeding through filling openings and filling units of the charging which are not being employed for feeding.

Abstract: Exhaust gases containing residual nitric oxide constituents from a processing operation are maintained at an elevated pressure, heated to from 260.degree. to 340.degree. C., and subjected to catalytic reduction with ammonia to produce purified exhaust gases. The pressure of the thus purified exhaust gases is then relieved in an expansion turbine.

Abstract: A riser cover is fixed to a shaft which is rotated in bearing projections of a bearing member which is attached to a riser. Impact transmitted to the bearing member upon opening of the cover is absorbed and damped before it is transmitted to the riser. Shock absorbing elements, preferably in the form of plate springs, are positioned between the bearing member and a supporting device of the riser.

Abstract: A furnace has a filling inlet normally closed by a removable cover. An arrangement is disclosed which opens the filling inlet, then fills the interior of the furnace, and then recloses the inlet all in gas-tight and dust-tight manner in order to prevent the free escape of dust and gases to the ambient atmosphere when the cover is removed from the filling inlet. The arrangement includes a housing surrounding the filling inlet and having a discharging port and a first opening separate from the discharging port, and a filling arrangement which is operative for conveying a charge from the discharging port through the interior of the housing and into the filling inlet when the latter is opened. A cover-extracting arrangement is operative for removing and subsequently repositioning the cover.

Abstract: An inclined chamber has vertical heating flues on each side thereof. The floors of the heating flues are vertically staggered in an inclined manner. Pairs of heating flues are joined at the tops thereof by guide openings which are vertically staggered in an inclined manner. Central and upper air inlet openings extend into the heating flues and are vertically staggered in an inclined manner.

Abstract: A bolt has an inner end threaded into a door body. A sleeve surrounds the bolt, and a locking bar surrounds the sleeve. A spring is supported by the bolt and urges the sleeve and locking bar toward the outer end of the bolt. A nut is threaded onto the outer end of the bolt and contacts the sleeve, so that rotation of the nut moves the sleeve axially of the bolt to adjust the pressure of the spring on the locking bar. A lock nut is screwed onto the outer end of the bolt and is locked to the nut, so that rotation of the lock nut rotates the bolt and adjusts the circumferential position of the locking bar.

Abstract: An arrangement for regulating the introduction of substances into chambers is disclosed and is particularly well-suited for the feeding of coal into coke ovens. The arrangement includes a chamber which is to be filled to a predetermined level and a feeding device is provided for feeding material into the chamber. The feeding device has a switch which stops the introduction of the material to the chamber when the level of the material reaches the predetermined level. The switch for the feeding device is electrically connected with a differential pressure switch which is actuated upon the generating of a predetermined pressure differential across it. The requisite pressure differential is generated by introducing pressurized gas into the chamber and an air compressor may be provided for this purpose. A sensing conduit, which is connected with one terminal of the differential pressure switch, extends into the chamber and has an end positioned at the predetermined level to which the chamber is to be filled.

Abstract: Waste gas, for example exhaust gas from an adipic acid production process, containing nitrogen oxides and a high proportion of oxygen and/or oxygen compounds is treated to remove the nitrogen oxides by reducing the nitrogen oxides with ammonia at an elevated temperature in the presence of a catalyst comprising an iron oxide and a chromium oxide.

Abstract: Coal is preheated and contacted with 0.5 to 3 percent by weight of moist coal tar, preferably bituminous coal tar. The thus-treated coal is admitted into a coke oven through the ceiling of the latter. The coal is poured into the coke oven, rather than being blown in, and is permitted to descend into the coke oven under the influence of gravity. Preferably, the coal is poured into the coke oven through at least two or three openings in the ceiling thereof. The coal tar serves to bind finely divided coal particles to the coarser particles and, in this manner, the development of dust during the introduction of the coal into the coke oven is restricted and, concomitantly, the danger of ignition or explosion is reduced.

Abstract: A sealing frame includes a flexible metallic profiled bar having a bent transverse cross section formed by a longitudinally extending apex joining longitudinally extending arms. Attachment bolts extend through the bar at the apex and are threaded into a coke-oven door element. Tightening of the bolts stretches the bar by increasing the angle of the apex.

Abstract: One of the problems encountered when feeding dry or preheated coal into coking chambers resides in that dust is generated. This dust is indesirable since it can form deposits which are difficult to remove. A method of inhibiting the dust formation when coal is fed into coking chambers is disclosed. The method involves contacting the coal with used motor oil prior to the introduction of the coal into the coking chambers. The utilization of used motor oil for inhibiting dust formation provides the advantages of economy and reduction of environmental pollution.