摘要:
A method for regulating or controlling the content of NOx in the exhaust gases of a glass-melting furnace having several burners operated in alternation, wherein both the beginning and the end of a combustion break (FP+, FP−) are supplied to a binary signal generator (8) which passes a signal to a regulator (4) with a time delay and upon receipt of the time-regulator (4), and the amount of NH3 supplied to the denitrating plant is adjusted to a lower constant fixed value F1 via a control, and by means of a memory element (7) a higher constant fixed value F2 is calculated as amount of NH3 and supplied to the regulator (4), whereupon as soon as the regulator (4) has received the signal of the time-delayed end of a combustion break, the fixed value F1 is adjusted to the fixed value F2 via a control, and subsequently the regulation is directly continued.
摘要:
A conveyor system (10) includes a conveyor course (12), which has a curved portion and two tracks (22, 24) located one above the other, and a conveyor carriage (14); each of the tracks (22, 24) is assigned at least one horizontal track roller (34, 36) of the conveyor carriage (14), and at least one of the tracks (22, 24) is assigned a further horizontal track roller (34, 36), which is spaced apart in the conveying direction (L) from the one track roller (34, 36) associated with the same track (22, 24). The axes of rotation (A, B) of the two track rollers (34, 36) are located in alignment with one another; and, whenever both tracks (22, 24) are each assigned a further track roller (34, 36), the axes of rotation (A, B) of these further track rollers (34, 36) are likewise in alignment with one another.
摘要:
A workpiece holder (56) for transporting workpieces in flexible processing lines, in particular assembly lines, is embodied for guidance along a guidance direction by means of a guide geometry of the processing line extending in the guidance direction, and the workpiece holder (56) has a first guide device (88, 88a, 88b) for guide engagement with the first guide geometry, and the workpiece holder (56) has a second guide device (90a), embodied separately from the first guide device, which second guide device is embodied for guide engagement with a second guide geometry, different from the first guide geometry.
摘要:
The invention relates to a separating layer carrier suitable for supporting a self-adhesive material provided with a layer of adhesive (20). Said carrier comprises a relief structure (22) with raised sections that form essentially complementary channels in the layer of adhesive (20), through which air blocked by the adhesion can escape. The relief structure (22) is at least partially formed by an impression on the substrate (10).
摘要:
A belt conveyor has a carrying belt unit including a carrying belt which has an upper load run and a plurality of supporting rollers to support the latter, and a friction belt unit having a friction belt which has one run in frictional contact with the upper load run of the carrying belt. The friction belt is guided by a plurality of bearing rollers and deviating rollers, the latter being downwardly offset relative to the bearing rollers. The upper load run is trough-shaped and has two lateral inclined portions supported by inclined supporting rollers, and a central portion with which the one run of the friction belt is in contact. The deviating rollers are spaced from one another by a distance which is at most equal to the width of the carrying belt.
摘要:
A link chain has a plurality of chain links, with at least one chain link having a carrying unit and a guide unit, wherein a carrying surface of the carrying unit, at least in places, extends in both a feed direction and in a transverse direction of the at least one chain link, and the guide unit is situated on a side of the carrying unit oriented away from the carrying surface in a vertical direction of the at least one chain link and serves to connect the at least one chain link to a chain link preceding and to a chain link following the at least one chain link in the feed direction, wherein the carrying unit is stepped with an upper plate part that has the carrying surface and a lower plate part that is offset from the upper plate part in the feed direction, wherein the lower plate part has an upper surface oriented toward a lower counterpart surface of the upper plate part of an adjoining chain link, and the upper surface of the lower plate part is at least partially inclined downwards in a direction extending from a free edge of the lower plate part toward the upper plate part.
摘要:
A connection (10) of two streamlined-section struts (12, 14) running orthogonally to one another with an essentially rectangular base cross section (18) uses a connector (16). The lateral surface (18a) of one (14) of the streamlined-section struts has a mounting groove (18b), as well as an edge flange (18c), which projects substantially orthogonally from an edge of this lateral surface (18a) at a predetermined distance (b). The connector (16) can be attached to the lateral surface (18a) of the one streamlined-section strut having the mounting groove (18b) and to the front side of the other streamlined-section strut (12). The contour of the connector (16)is accommodated substantially completely within the base cross section (18) of the other streamlined-section strut (12). In addition, the depth of the connector (16) is essentially the same as the predetermined distance (b).
摘要:
A supporting bearing (17) for linearly guided travelling units, having a housing and having a roller (20) which contains a rolling-contact bearing (26) and is seated on an eccentric bolt (28) which is mounted rotatably in the housing and can be fixed by clamping bolts (27). The housing (18a, 18b) is composed of two housing halves (18a, 18b) which are preferably of the same construction. The axial position of the roller (20) is determined by inner wall regions (46) of the housing halves (18a, 18b), which are laid or pressed against the end sides of the inner raceway (27) of the roller (20) after radial adjustment of the roller (20), by clamping the housing halves (18a, 18b) together. This results in the axial position of the roller (20) being fixed directly by way of its inner raceway (27).
摘要:
A process for the manufacture of vinyl chloride copolymers having a reduced content of free vinyl chloride comprising polymerizing a monomer mixture containing from 15% to 90% by weight of vinyl chloride under aqueous emulsion polymerization conditions with conventional post-polymerization, releasing the pressure, flushing the gas space above the copolymer dispersion free of monomer, cooling the copolymer dispersion to a temperature of from 10.degree. to 40.degree. C., adding a redox catalyst to the cooled dispersion consisting of from 0.002% to 0.5% by weight of the dispersion of an oil-soluble peroxy compound, and a water-soluble sulfur-containing reducing agent in a ratio of reducing agent to peroxy compound of 0.5 to 3 equivalents, allowing the dispersion to stand at a temperature of from 10.degree. to 40.degree. C. for a period of two hours to two days and recovering a copolymer dispersion having a vinyl chloride content of less than 50 ppm.
摘要:
In a stop module, in particular for automated machining and conveyor systems, a stop element for objects moving in a direction of motion in a movement plane is located on a base body, and the stop element is movable by an electrical rotary drive between a first terminal position, in which the stop element protrudes into the movement plane of the objects, and a second terminal position, in which the stop element enables a motion of objects in the movement plane. The motion of the stop element in and out of the movement plane of objects is implemented by a toggle lever device cooperating with the electrical rotary drive, which toggle lever device has at least two lever elements, connected to one another via a first pivot point, and the electrical rotary drive cooperates with the first pivot point.