Abstract:
A method includes the introduction of a first medium into the compartment through an inlet and the heating of the first medium when it is present in the inlet. The heating takes place through the use of a combustion arrangement that is arranged in the inlet and that comprises fuel. The heating, the use of the combustion arrangement, includes in turn the ignition of the fuel, combustion of the fuel, and the transfer of the combustion heat to the first medium that is present at the combustion arrangement in the inlet. The combustion arrangement, is arranged in a region in the inlet, which in turn is arranged outside of the direct passage of the first medium in and through the inlet, such that the ignition of the fuel, the combustion of the fuel and the transfer of combustion heat to the first medium take place in this region.
Abstract:
This invention concerns a method for the heating of a medium in a compartment 1 in which pellets 2 are arranged to be oxidised and sintered with the aid of the hot medium. The method comprises the introduction of a first medium 3 into the compartment 1 through an inlet 4 and the heating of the first medium 3 when it is present in the inlet 4. The heating takes place through the use of a combustion arrangement 5, or a part of such an arrangement, that is arranged in the inlet 4 and that comprises fuel. The heating, the use of the combustion arrangement 5, comprises in turn the ignition of the fuel, combustion of the fuel whereby combustion heat is developed, and the transfer of the combustion heat to the first medium 3 that is present at the combustion arrangement 5 in the inlet 4. The combustion arrangement 5, or a part of it, is arranged in a region A in the inlet 4, which in turn is arranged outside of the direct passage of the first medium in and through the inlet 4, such that the ignition of the fuel, the combustion of the fuel and the transfer of combustion heat to the first medium 3 take place in this region A, followed by onwards transport of the heated first medium 3 from the region A into the compartment 1 through the inlet 4. The invention concerns also an arrangement 7 and a pelletising plant 10.
Abstract:
A method for maximizing the loading capacity of a wagon or wagon train when loading with pourable material from a silo. The method utilizes a computer which determines the type of wagon to be loaded on the basis of values obtained with sensors.
Abstract:
Apparatus for bridging a space between adjacent wagons having laterally tiltable bodies and arranged end to end in a train includes a flap pivoted at the rear end of a wagon body for free pivotal movement about a horizontal transverse axis, the flap having a width corresponding to that of the respective wagon body and a length sufficient to overlap the following wagon body.
Abstract:
Device for obtaining dust from minerals. The device has an excitation part for mechanical ultrasonic vibrations combined with a chisel. A suction device is provided to collect the dust produced. The device serves in particular to produce dust samples rapidly for quick analysis of minerals in prospecting, in the reconnaissance and evaluation of deposits and in the mining of minerals for the purposes of quality control, monitoring and controlling the mining process.
Abstract:
Suction device for obtaining dust samples of nearly homogeneous grain sizes and with a reproducible bulk density for the analysis of ores. The device, which is suitable for use during the mining of ores, includes a cylindrical casing, having an opening at each end thereof, and a cylindrical sieve insert, having an opening at each end thereof and being coaxially located within the casing. An inwardly-facing conically-shaped insert, located at the front end of said casing, provides flow communication between the front end of the casing and the sieve insert. A suction pipe socket is located laterally on the casing for attachment to suction-generating equipment. A filter is located over the mouth of the conically-shaped insert. The front end of a downwardly-curved dust-conducting tube is in direct communication with the back end of the sieve insert. There is a tube for collecting samples from the dust-conducting tube. The nozzle-like taper of the conically-shaped insert accelerates the dust particles which have been drawn into the device and have passed through the filter. The smaller dust particles, following the deflection of the air flow caused by the lateral suction through the suction pipe socket pass through the sieve insert and out the suction pipe socket. The larger dust particles, not being deflected by the lateral suction, pass through the dust-conducting tube into the sample container.
Abstract:
A bottom dump arrangement attached to a body which provides a goods-holding space, the body resting on an undercarriage and including at least one pair of adjacent doors having remote edges, the doors being pivotally attached at their remote edges for swinging movement in a curved path transverse to the body and perpendicular to the remote edges, the free edges of the doors facing toward each other abutting each other in closed position of the doors, the arrangement also including guide paths that cooperate with the body to lift the body relative to the undercarriage, a linkage assembly pivotally connected between the doors and the body for permitting the body, when lifted by the guide paths, to become inclined to the pivotal axes for the doors in a vertical plane, which is parallel to the pivotal axes of the doors and perpendicular to the plane that the undercarriage rests on.
Abstract:
A contact sealing for adaptive abutment to a rotating sealing surface is provided with an annular groove, in which a pressurized hose is located which abuts a sealing member and presses the same against the sealing surface.