Method and apparatus for conveying solid particles to abrasive cutting apparatuses
AssigneeBohler Gesellschaft m.b.H.
InventorsFranz Trieb, Kurt Marchl
Life of this patent
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Abstract
A method and apparatus conveys solid particles from a supply device to a charging device for charging free-flowing cutting jets. Positive charging of the cutting jets even when located at a greater or remote distance from the supply device is ensured. To that end, the solid particles are transported in a closed circuit between the supply device and a charging or intermediate storage device and the momentarily required partial quantity of solid particles needed for charging the cutting jet is removed from the closed circuit.
Claims22
A method of conveying solid particles from a supply device to a charging device of a fluid jet cutting apparatus for charging at least one free-flowing cutting jet with such solid particles, comprising the steps of:
- removing the solid particles from the supply device;
- introducing the solid particles into a carrier medium for transport thereof;
- moving the solid particles through a closed circuit, said solid particles being transported in the carrier medium between the supply device and a particle receiving device of the fluid jet cutting apparatus;
- and
- removing from the closed circuit at least a portion of the solid particles which serves for the charging of the cutting jet.
An apparatus for conveying solid particles to a charging device for charging free-flowing cutting jets with the solid particles, said apparatus comprising:
- a supply device in which the solid particles are stored and introduced into a carrier medium;
- connection means for an infeed of the solid particles to the charging device;
- means for moving the solid particles in a circuit, said circuit extending through an area proximate at least one free-flowing jet, for holding in readiness the solid particles for diverting at least a portion of the solid particles from said circuit in charging said at least one free-flowing cutting jet with the solid particles;
- and
- said connection means comprising at least two tubular-shaped lines, said at least two tubular-shaped lines comprising at least a portion of said circuit.
An apparatus for conveying solid particles to a fluid jet for emitting at least a portion of the solid particles in a first direction, said apparatus comprising:
- a supply device for storing the solid particles;
- a charging device for charging the at least a portion of the solid particles to the fluid jet;
- a delivery line for directing the solid particles in a direction toward the charging device;
- a feeding device for feeding the solid particles from the supply device and into the delivery line;
- a return line for directing the solid particles in a direction from the charging device;
- and
- means for introducing a carrier medium into the delivery line for carrying the solid particles through the delivery line to the charging device;
- the charging device comprising means for directing the solid particles through the charging device along a path, including a second direction of flow, the second direction of flow being different from the first direction of flow of the fluid jet, wherein:
- a closed circuit for the solid particles is provided, the closed circuit including the supply device, the delivery line, the charging device, and the return line, and wherein the apparatus further comprises:
- means for continuously propelling the solid particles through the closed circuit and for containing the solid particles within the closed circuit until activation of the fluid jet for diverting at least a portion of the solid particles from the closed circuit.
Dependencies are inferred from the claim text.