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US 12,624,978 B2Granted
Method for determining a mass flow and conveying and measuring device
AssigneeCiTEX Holding GmbH
InventorMarius Thiel
Life of this patent
Estimating the term…
Abstract
A method for determining a mass flow of bulk material in a conveyor line includes providing a conveyor line, continuously receiving bulk material, transporting the bulk material on the conveyor line, and discharging the bulk material at an end point of the conveyor line. The conveyor line includes an array of weighing cells having a plurality of weighing cells successive in a direction of transport.
Claims22
Method for determining a mass flow of bulk material in a conveyor line, including the following steps:
- providing a conveyor line including an array of weighing cells consisting of a plurality of weighing cells successive in a direction of transport (ST1),
- continuously receiving bulk material,
- transporting the bulk material on the conveyor line in the direction of transport across the plurality of weighing cells,
- discharging the bulk material at an end point of the conveyor line (ST2),
- putting out measuring values of the individual weighing cells as a function of time (ST3),
- evaluating with comparisons of measuring values as a function of time and a position of the weighing cells in the direction of transport,
- wherein a structure or sequence of measuring values of spatially successive measuring values of a first measurement at a first point in time (t0) is compared with at least one structure or sequence of measuring values of spatially successive measuring values of a second measurement at a second point in time, and a distance value of the two structures or sequences of measuring values is determined from the comparison, and
- determining a mass flow from the distance value and the time difference between the first point in time and the second point in time (ST5).
5 more elements
Method for determining a mass flow of bulk material in a conveyor line, including the following steps:
- providing a conveyor line including an array of weighing cells consisting of a plurality of weighing cells successive in a direction of transport (ST1),
- continuously receiving bulk material,
- transporting the bulk material on the conveyor line in the direction of transport across the plurality of weighing cells,
- discharging the bulk material at an end point of the conveyor line (ST2),
- putting out measuring values of the individual weighing cells as a function of time (ST3),
- evaluating with comparisons of measuring values as a function of time and a position of the weighing cells in the direction of transport,
- wherein a one-dimensional or multi-dimensional matrix of measuring values is created for each of at least two points in time, creating at least two matrixes, and from the at least two matrixes a pattern recognition and/or a correlation, is carried out to determine matches in the structures or sequences of measuring values, and
- wherein with one time difference in each case, the autocorrelation is carried out with different distance values, and the correct distance value is recognized in the autocorrelation with a highest significance, and
- determining a mass flow from the evaluation (ST5).
6 more elements
Method for determining a mass flow of bulk material in a conveyor line, including the following steps:
- providing a conveyor line including an array of weighing cells consisting of a plurality of weighing cells successive in a direction of transport (ST1), wherein the conveyor line is selected from the following group:
- a belt conveyor, a screw feeder, a vibration conveyor, a deflector plate conveyor, a cellular wheel conveyor,
- continuously receiving bulk material,
- transporting the bulk material on the conveyor line in the direction of transport across the plurality of weighing cells,
- discharging the bulk material at an end point of the conveyor line (ST2),
- putting out measuring values of the individual weighing cells as a function of time (ST3),
- evaluating with comparisons of measuring values as a function of time and a position of the weighing cells in the direction of transport, and
- determining a mass flow from the evaluation (ST5),
- wherein a deflector plate conveyor is utilized as the conveyor line;
- the weighing cells are provided immediately below the deflector plate and/or integrated therein, measuring values of a front weighing cell are used to determine a particle mass of the impinging material, and slippage characteristics are determined as transport velocity from subsequent weighing cells.
7 more elements
Transporting and measuring device for transporting and measuring a mass flow of bulk material, the transporting and measuring device comprising:
- a conveyor line adapted to transport bulk material as a mass flow (W) from at least one starting point in a direction of transport up to an end point,
- an array of weighing cells consisting of a plurality of weighing cells, arranged successively in the direction of transport, each detecting a mass load, and outputting measuring values as a function of time, and
- an evaluation device adapted to evaluate the measuring values as a function of time and a position of the weighing cells in the direction of transport, wherein the evaluation device is designed to compare the structure or sequence of measuring values of spatially successive measuring values of a first measurement at a first point in time with at least one structure or sequence of measuring values of a second first measurement at a second point in time, and to determine a distance value or spatial offset of the two structures or sequence of measuring values from the comparison.
Transporting and measuring device for transporting and measuring a mass flow of bulk material, the transporting and measuring device comprising:
- a conveyor line, designed as a vibration conveyor, and adapted to transport bulk material as a mass flow (W) from at least one starting point in a direction of transport up to an end point,
- an array of weighing cells consisting of a plurality of weighing cells, arranged successively in the direction of transport, each detecting a mass load, and outputting measuring values as a function of time, wherein the plurality of weighing cells are provided in the plate elements actuated by a vibration means or as plate elements, and
- an evaluation device adapted to evaluate the measuring values as a function of time and a position of the weighing cells in the direction of transport.
Transporting and measuring device for transporting and measuring a mass flow of bulk material, the transporting and measuring device comprising:
- a conveyor line, designed as a deflector plate conveyor including a downward sloping deflector plate, and adapted to transport bulk material as a mass flow (W) from at least one starting point in a direction of transport up to an end point,
- an array of weighing cells consisting of a plurality of weighing cells, arranged successively in the direction of transport, each detecting a mass load, and outputting measuring values as a function of time, wherein the weighing cells are provided under the deflector plate or integrated therein, and
- an evaluation device adapted to evaluate the measuring values as a function of time and a position of the weighing cells in the direction of transport.
Dependencies are inferred from the claim text.