Abstract:
Bei dem erfindungsgemässen Verfahren und der erfindungsgemässen Anordnung zum Hereingewinnen von Gewinnungsprodukten in untertägigen Gewinnungsbetrieben im Bruchbau werden die in einem oberen Streb (10) hereinbrechenden Gewinnungsprodukte (20) über mindestens einen Abzugstrichter (13) od.dgl. in eine unterhalb des Strebs aufgefahrene Abzugsstrecke (14) abgezogen und in dieser mittels eines Abzugsförderers (15) abtransportiert. Nach der Erfindung sind hierbei die Abzugstrichter (13) seitlich neben dem Abzugsförderer (15) angeordnet und gehen an ihrem unteren Ende in eine zum Abzugsförderer hin geneigte Rampenfläche (17) über, wobei die durch die Abzugstrichter aus dem Streb abgezogenen Gewinnungsprodukte über die geneigte Rampenfläche zum Abzugsförderer hin rutschend transportiert werden. Die geneigte Rampenfläche wird hierbei bevorzugt von einer Laderampe (22) gebildet, die in einer seitlich von der Abzugsstrecke abzweigenden Abzugskammer (16) so angeordnet ist, dass sich ihr eines, höhergelegenes Ende (19) unterhalb des Abzugstrichters befindet und ihr anderes, tiefergelegenes Ende (23) einen Auslauf (21) zum Abzugsförderer hin bildet.
Abstract:
A material extraction system for an underground mine includes a mobile sizer for sizing removed material, an elevated bunker operable to collect the sized material, and a shuttle car operable to receive the collected material from the elevated bunker. The shuttle car is positioned substantially below the elevated bunker for receiving the collected material from the elevated bunker.
Abstract:
A coarse crusher (18) for use at both face ends of a face conveyor in an underground mine is disclosed. The coarse crusher (18) may comprise a pan module (20), a base-frame module (22) and a support-arm module (24). The pan module (20) has two pan outer longitudinal sides (46, 48). Depending on the face end of the face conveyor, into which face end the coarse crusher (18) is to be integrated, the base-frame module (22) may be fastened releasably via first pan fastening apparatuses (50) to that first or second pan outer longitudinal side (46, 48) which faces away from a working face.
Abstract:
A method and process line apparatus for processing a sized ore feed excavated from an ore deposit is disclosed. The method involves disposing a processing apparatus in a processing apparatus position relative to the ore deposit, and disposing a first mobile conveyor to receive a sized ore feed at a receiving location located along a length of the first mobile conveyor. The first mobile conveyor is operable to convey the sized ore from the receiving location to a discharge end of the first mobile conveyor. The method also involves disposing a second mobile conveyor to receive the sized ore from the discharge end of the first mobile conveyor at a transfer location along a length of the second mobile conveyor and to convey the sized ore from the transfer location to the processing apparatus. The first and second mobile conveyors are oriented at an operational angle between a length of the first mobile conveyor and a length of the second mobile conveyor. The method further involves moving at least one of the first and second mobile conveyors to vary at least one of the operational angle and the transfer location to permit successive portions of the ore deposit within operational reach of the receiving location to be received for conveying along the first and second mobile conveyors to the processing apparatus while the processing apparatus is located in the processing apparatus position.
Abstract:
A control system (400) for a material gathering mechanism (108) includes a gathering head (118) configured to gather material from a ground surface, a plurality of gathering members (120) configured to transport the material gathered by the gathering head (118) towards a material conveying apparatus (1 10), and a jam detection device (122) for detecting a jam condition in movement of one or more of the plurality of gathering members (120) and generate signals indicative of the jam condition. The control system (400) further includes a controller (402) communicably coupled to the plurality of gathering members (120) and the jam detection member (122). The controller (402) receives signals indicative of the jam condition from the jam detection device (122). The controller (402) initiates a sequence of stopping, delaying, and restarting the gathering member (120) on receiving the signals indicative of the jam condition.
Abstract:
The invention relates to a method and to an arrangement device for extracting extraction products in underground mines in caving. According to the invention, extraction products (20) breaking into an upper coal face (10) are extracted by means of at least one extraction funnel (13) or similar, into an extraction path (14) disposed practically underneath the coal face and are evacuated in said extraction path by means of an extraction conveyor (15). According to the invention, the extraction funnels (13) are arranged next to the extraction conveyor (15) and lead into a ramp surface (17), which is inclined, towards the extraction conveyor, with the lower end thereof. The extraction products extracted from the coal face by the extraction funnels are slidingly transported to the extraction conveyor via the inclined surfaces. The inclined sloped surface is, preferably, formed by a charge ramp (22) which is arranged in an extraction chamber (16) which branches off in a lateral manner from the extraction path, such that one of the high-lying ends (19) thereof is disposed below the extraction funnel and the other low-lying end thereof (23) forms an outlet (21) leading to the extraction conveyor.
Abstract:
A device for sinking galleries in underground mining comprises a travelling mechanism, a loading shovel fitted, if necessary, with concrete breakers, and an endless rotary conveyor which extends in the longitudinal direction of the machine from the unloading position of the loading shovel to the end of the machine. A crushing machine (19) comprises, mounted on the travelling mechanism (20), at least one crushing aggregate (22), provided with percussion devices or designed as a crusher, with a receiving hopper (21) and an endless rotary conveyor (25). The crushing machine (19) is connected downstream of the sinking machine (1) in such a way that the end of the conveyor (5) of the sinking machine (1) remote from the loading shovel (3) is associated with the receiving hopper (21) of the crushing machine (19).
Abstract:
In a mineral material processing method mineral material is processed in a mineral material processing plant (200), heat which is generated in heat sources (1, 3, 4) of the processing plant and/or fuel which is used in a motor (104) of the processing plant is cooled in a cooler (10') of the processing plant, wetting water is directed to the mineral material for binding dust (20) which is generated in the processing, and heat of at least one heat source (1, 3, 4) of the processing plant (200) and/or heat of the fuel (2) is transferred to the wetting water before using the wetting water for dust binding (20). A mineral material processing plant (200) comprises heat transfer means (5) through which the wetting water used for dust binding is arranged to flow during use of the processing plant before directing the wetting water to the dust binding means (20), and the heat transfer means are configured to transfer to the wetting water heat of at least one heat source (1, 3, 4) of the processing plant and/or heat of the fuel (2).
Abstract:
A method of mineral fuel beneficiation with subsequent delivery to the consumer by pipeline transportation relates fuel and energy complex and can find application in coal and slate energetics. Invention main objective is security of solid fuel delivery from mine (or an open cut coal mine) in already enriched form, with its subsequent through delivery to the consumer by pipeline on any distances in stream mode, without any intermediate transshipment operations. For this purpose use liquid with set complex physical, sanitary-and-hygienic and ecological properties, simultaneously, in 4 qualities: - As environment for grinding material that needed further reduction of size; - As separation environment for the subsequent, after reduction of size, deep underground gravitational enrichment of combustible mineral, - As motionless filler of the vertical pipeline, for buoyancy in it ready product from mine on terrestrial surface: - As carrying medium for final drift of end-product to the consumer by main pipeline. Depending on consumer type of solid fuel, a time of year, and weather conditions in which such, non-polluting, mining-energetic complex functions, there are used various technological approaches as to the general principles of construction of such, non-polluting, beneficiating- transport technological process as well as within the limits of separate links of such technological chain, various methods of the regeneration, used many functional liquids which are in the closed contour of circulation between producer of solid fuel and its consumer.