System and method of detection of uncrushable metallic pieces in mineral loads
AssigneeTechnologia Integral S.A.
InventorsGastón Guillermo Martinez Godoy, Pedro Daniel Pedraza Segovia, Miguel Jesús Calderon Maldonado
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Abstract
A system and method to detect uncrushable metallic pieces hidden inside a mineral load directly inside a transport device to a primary crusher includes a directionally adjustable radar having at least one device with electromagnetic wave emitter/receiver antennas, a portal through which the transport device passes, a spectral generator/analyzer connected to the antenna devices that generates the electromagnetic waves and analyzes the echoes of the electromagnetic waves that interact with the mineral load, and a computational device that includes a digital signal processor connected to the spectral generator/analyzer.
Claims7
A system to detect uncrushable metallic pieces hidden inside a mineral load directly inside a transport device to a primary crusher, the system comprising:
- a directionally adjustable radar that includes at least one device having electromagnetic wave emitter/receiver antennas used to scan a mineral load that is transported by the transport device;
- a portal through which the transport device passes, with a top section where at least one antenna device is located to face the mineral load of the transport device;
- a spectral generator/analyzer connected to the antenna devices that generates electromagnetic waves and analyzes the echoes of the electromagnetic waves that interact with the mineral load, distinguishing a characteristic echo produced by a metallic element hidden inside the mineral load;
- and
- a computational device that includes a digital signal processor connected to the spectral generator/analyzer to allow data to be stored in its temporal or frequency domain for further processing and to deliver information regarding the transport device check results to the user.
A method to detect uncrushable metallic pieces hidden inside a mineral load directly inside a transport device that delivers the load into a primary crusher using an adjustable radar scanner located in a portal, the method comprising the steps of:
- a) passing a transport device through a portal at a speed from 5 to 50 km/h;
- b) detecting when a mineral load is under the portal;
- c) activating an adjustable radar scanner;
- d) generating controlled electromagnetic pulses that penetrate the mineral load using an array of emitter antennas of the scanner;
- e) detecting echoes generated by the mineral load, the transport device and eventual uncrushable elements hidden inside the mineral load using an array of electromagnetic wave receiver antennas;
- f) analyzing the resulting information from said electromagnetic wave receivers through spectral analyzers;
- g) sending the analyzed information to a digital processor to generate a sample consisting in an “image” of a cross-section of the mineral load;
- and
- h) repeating said steps d) to g) as the transport device passes through the portal, generating a tomographic image of all the mineral load in the transport device.
Dependencies are inferred from the claim text.