Abstract: A tool for removing a chisel, in particular from a chisel holder, having a base element which receives an actuating member, wherein the actuating member has an expeller mandrel. The actuating member is adjustable along a displacement direction. In order to be able to perform the removal simply and rapidly, the actuating member of this invention is indirectly or directly coupled to a piston of a fluid-charged cylinder, or to an electric motor unit.

Abstract: A tool for removing a chisel, in particular from a chisel holder, having a base element which receives an actuating member, wherein the actuating member has an expeller mandrel. The actuating member is adjustable along a displacement direction. In order to be able to perform the removal simply and rapidly, the actuating member of this invention is indirectly or directly coupled to a piston of a fluid-charged cylinder, or to an electric motor unit.

Abstract: A tool for removing a chisel, in particular from a chisel holder, having a base element which receives an actuating member, wherein the actuating member has an expeller mandrel. The actuating member is adjustable along a displacement direction. In order to be able to perform the removal simply and rapidly, the actuating member of this invention is indirectly or directly coupled to a piston of a fluid-charged cylinder, or to an electric motor unit.

Abstract: A tool for removing a chisel, in particular from a chisel holder, having a base element which receives an actuating member, wherein the actuating member has an expeller mandrel. The actuating member is adjustable along a displacement direction. In order to be able to perform the removal simply and rapidly, the actuating member of this invention is indirectly or directly coupled to a piston of a fluid-charged cylinder, or to an electric motor unit.

Abstract: While ensuring technical safety and a short start-up time the invention permits the operation of autothermic partial oxidation of fuels processed into pulverized fuel such as lignite and bituminous coals, petroleum cokes, solid grindable carbon-containing residues, as well as solid-liquid suspensions or slurries, with a gasification agent containing oxygen at operating pressures of up to 8 MPa (80 bar). The selective configuration of the fail-safe monitoring of the gasification process only the supply of the main fuel is cut off. Through the continued operation of the pilot and ignition burner the reactor is kept at operating pressure and after the fault has been rectified fuel gasification can be restarted with the pilot and ignition burner without a complicated placement and pulling of a starter burner and subsequent pressurization of the reactors.

Abstract: A tool for removing a chisel, in particular from a chisel holder, having a base element which receives an actuating member, wherein the actuating member has an expeller mandrel. The actuating member is adjustable along a displacement direction. In order to be able to perform the removal simply and rapidly, the actuating member of this invention is indirectly or directly coupled to a piston of a fluid-charged cylinder, or to an electric motor unit.

Abstract: In a milling drum (2) for a construction machine, in particular a road milling machine (1) or a recycler, with an interchangeable milling tube (4) arranged coaxially to the axis (20) of the milling drum, where the milling tube (4) is supported, by means of a support ring (8), on a support ring mount (12) of a rotating body coupled to a milling drum drive (16), it is provided that the support ring (8) and the support ring mount (12) of the rotating body display several complementary supporting surfaces (22, 24) arranged coaxially to the axis (20) of the milling drum, where the said supporting surfaces (22, 24) have different supporting circle diameters and are arranged behind one another axially with their diameters decreasing incrementally in the pulling direction.

Abstract: A method and device for the gasification of solid fuels such as bituminous coals, and cokes such as those from bituminous coals, lignite coals, and biomasses, as well as petroleum cokes, that are ground fine and mixed with water or oil to obtain fuel-in-liquid suspensions, so-called slurries, and their gasification together with an oxidizing medium containing free oxygen, by partial oxidation at pressures between atmospheric pressure and 100 bar, and at temperatures between 1200 and 1900° C. in an entrained flow reactor. The method includes slurry preparation and infeed to the reactor, gasification in an entrained flow reactor with cooled reaction chamber contour, full quenching of the crude gas to saturation temperature that may be 180-260° C. depending on the gasification pressure, and wet or dry dust separation. The crude gas is pretreated so that it can be fed to further technological steps such as crude gas conversion, H2S and CO2 removal, and synthesis.

Abstract: A method for gasification of fuel in an entrained flow of a gasification reactor. The method includes jointly gasifying a mixture of at least two different fuels having different degrees of coalification, including those of differing coal qualities such as brown coals and stone coals. The method also includes pulverizing the coals forming the mixture in specific grain bands and drying the coals forming the mixture to a specific residual water content.

Abstract: In a milling drum (2) for a construction machine, in particular a road milling machine (1) or a recycler, with an interchangeable milling tube (4) arranged coaxially to the axis (20) of the milling drum, where the milling tube (4) is supported, by means of a support ring (8), on a support ring mount (12) of a rotating body coupled to a milling drum drive (16), it is provided that the support ring (8) and the support ring mount (12) of the rotating body display several complementary supporting surfaces (22, 24) arranged coaxially to the axis (20) of the milling drum, where the said supporting surfaces (22, 24) have different supporting circle diameters and are arranged behind one another axially with their diameters decreasing incrementally in the pulling direction.

Abstract: A road milling machine having a milling roller with a plurality of chisels. A signal receiving unit is assigned to a machine component which is directly or indirectly involved in the milling process or to another machine component. The signal receiving unit detects an operating condition of the machine component and is connected to a signal emitting unit. An optical detecting device may be assigned to the road milling machine, whereby operations are made easier and the milling pattern is optimized.

Abstract: In a milling drum (2) for a construction machine, in particular a road milling machine (1) or a recycler, with an interchangeable milling tube (4) arranged coaxially to the axis (20) of the milling drum, where the milling tube (4) is supported, by means of a support ring (8), on a support ring mount (12) of a rotating body coupled to a milling drum drive (16), it is provided that the support ring (8) and the support ring mount (12) of the rotating body display several complementary supporting surfaces (22, 24) arranged coaxially to the axis (20) of the milling drum, where the said supporting surfaces (22, 24) have different supporting circle diameters and are arranged behind one another axially with their diameters decreasing incrementally in the pulling direction.

Abstract: A method and device for the gasification of solid fuels such as bituminous coal, lignite coal, and petroleum coke in the flue stream with an oxidizing medium containing free oxygen, by partial oxidation at pressures between atmospheric pressure and 80 bar and at temperatures between 1,200 and 1,900 degrees. The fuel is gasified by pneumatic metering of pulverized fuel, gasification reaction in a reactor with cooled reactor chamber contour, quencher cooling, crude gas scrubbing, and partial condensation.

Abstract: A chisel holder system including a base part and a chisel holder. The base part includes a socket wherein the chisel holder with a plug-in insert is introduced. The chisel holder has a bearing surface supported on a supporting surface of the base plate, and the base part has a shoulder connected to the supporting surface. A replacement chamber is formed between the shoulder and a facing end surface of the chisel holder. According to this invention, the supporting surface is placed in the transition region in relation to the shoulder by at least one recess of the shoulder so that the flat-shaped connection between the supporting surface and the shoulder, in the region of the recess, is interrupted in order to optimize the resistance to wear and tear of the base part.

Abstract: A method and device for the gasification of solid fuels such as bituminous coal, lignite coal, and petroleum coke in the flue stream, with an oxidizing medium containing free oxygen by partial oxidation at pressures between atmospheric pressure and 80 bar, and at temperatures between 1200 and 1900° C., consisting of the process steps of pneumatic metering for pulverized fuel, gasification in a flue stream reactor with cooled reaction chamber contour, partial quenching, cooling, crude gas scrubbing, and partial condensation.

Abstract: A tool for removing a chisel, in particular from a chisel holder, having a base element which receives an actuating member, wherein the actuating member has an expeller mandrel. The actuating member is adjustable along a displacement direction. In order to be able to perform the removal simply and rapidly, the actuating member of this invention is indirectly or directly coupled to a piston of a fluid-charged cylinder, or to an electric motor unit.

Abstract: A chisel holder system including a base part and a chisel holder. The base part includes a socket wherein the chisel holder with a plug-in insert is introduced. The chisel holder has a bearing surface supported on a supporting surface of the base plate, and the base part has a shoulder connected to the supporting surface. A replacement chamber is formed between the shoulder and a facing end surface of the chisel holder. According to this invention, the supporting surface is placed in the transition region in relation to the shoulder by at least one recess of the shoulder so that the flat-shaped connection between the supporting surface and the shoulder, in the region of the recess, is interrupted in order to optimize the resistance to wear and tear of the base part.

Abstract: A method and device for metering and feeding pulverized fuels under pressure into gasification reactors, with the pulverized fuel being supplied alternately from an operational bunker through pressurized sluices to a metering tank, in the bottom of which a dense fluidized bed is formed by introducing fluidizing gas through a turbulence plate, with transport pipes immersed in the fluidized bed horizontally or vertically, by which the fluidized fuel is fed continuously through burners to a pressurized gasification reactor. By feeding in auxiliary gas in the immediate vicinity of the transport line inlet into the metering tank or the transport lines, the pressure differential between the metering tank and the gasification reactor is controlled and is utilized as a control parameter for pulverized fuel transport.

Abstract: A tool holder including a tool box with a tool seat in a holding projection for receiving a tool in such a manner that it can be replaced. The tool seat is configured as a bore and has a tool insertion opening. The tool holder has a fastening side with a fastening projection and, facing away from said fastening side, an exterior, and during use of the tool centrifugal forces are effective in the direction from the fastening side to the exterior. This invention ensures the free rotatability of a tool inserted in the tool holder even if overburden material enters the tool seat. For this purpose, the holding projection has an opening penetrating the inner wall of the tool seat and creating a spatial connection to the exterior, and the opening opens the tool seat towards the exterior.

Abstract: A tool holder including a tool box with a tool seat in a holding projection for receiving a tool in such a manner that it can be replaced. The tool seat is configured as a bore and has a tool insertion opening. The tool holder has a fastening side with a fastening projection and, facing away from said fastening side, an exterior, and during use of the tool centrifugal forces are effective in the direction from the fastening side to the exterior. This invention ensures the free rotatability of a tool inserted in the tool holder even if overburden material enters the tool seat. For this purpose, the holding projection has an opening penetrating the inner wall of the tool seat and creating a spatial connection to the exterior, and the opening opens the tool seat towards the exterior.