CN-122007059-A - Metal sundry grabbing device and grabbing method for adhesive tape conveyor

CN122007059ACN 122007059 ACN122007059 ACN 122007059ACN-122007059-A

Abstract

The invention discloses a metal sundry grabbing device and a grabbing method for an adhesive tape conveyor. The device comprises a rotary grabbing device, a metal detector and a controller. The rotary grabbing device comprises a rotatable turning plate, grabbing pieces and a transmission mechanism, wherein comb-tooth-shaped staggered horizontal electrodes are arranged on an installation substrate of each grabbing piece, and vertical electrodes are arranged on the horizontal electrodes at intervals to form a three-dimensional staggered electrode structure. The controller controls the transmission mechanism to rotate forward and backward. The metal detector triggers the power supply and the grabbing piece feeding flow, the metal sundries contact the electrode to form a metal short circuit and fusion welding adhesion, and the current detector triggers the power-off and the grabbing piece retreating flow to complete grabbing after detecting the short circuit. The automatic precise grabbing device for the metal sundries is capable of realizing automatic precise grabbing of the metal sundries, solves the problems that a traditional impurity removing mode is poor in weak magnetic metal removing effect and large in material cutting amount, reduces labor intensity, adapts to continuous material conveying working conditions of an adhesive tape conveyor, effectively protects subsequent processing equipment, and improves efficiency and stability of mine production.

Inventors

LI WEIWEI
JIA YONGHONG
LI ZHUANG
WANG HONGBIN
LIU LINFENG
WEN YONGQIANG

Assignees

攀钢集团矿业有限公司

Dates

Publication Date: 20260512
Application Date: 20260409

Claims (10)

1. A rotary gripping device, comprising: The rotary turning plate comprises a mounting bottom plate and a transmission shaft, wherein one end of the mounting bottom plate is sleeved on the transmission shaft and fixed; The grabbing piece comprises a mounting substrate and a horizontal electrode arranged on the mounting substrate, wherein the extending direction of the horizontal electrode is the same as that of the mounting substrate, a vertical electrode is further arranged on the horizontal electrode, and the extending direction of the vertical electrode is perpendicular to that of the horizontal electrode, and And the transmission mechanism is connected to the transmission shaft and drives the transmission shaft to rotate.
2. The rotary gripping device according to claim 1, wherein the rotatable flap further comprises an annular electrode fixedly disposed on the exterior of the mounting base plate on the drive shaft for synchronous rotation therewith.
3. The rotary gripping device according to claim 2, wherein the ring electrode circuit is connected to the horizontal and vertical electrodes to power them.
4. The rotary gripping device according to claim 2, wherein the rotatable flap further comprises an insulator embedded between the mounting base plate and the ring electrode to electrically insulate the drive shaft, the mounting base plate and the ring electrode.
5. The rotary grabbing device according to claim 1, wherein the horizontal electrodes are formed by staggered, fixed and embedded comb-shaped structures, and the vertical electrodes are arranged on the comb-shaped structures of the horizontal electrodes at intervals.
6. A metallic debris gripping device for a tape conveyor, comprising: the rotary gripping device according to any one of claims 1-5; the rectification power supply is connected to the annular electrode of the rotary grabbing device to supply power to the annular electrode; And a controller communicatively connected to the rectified power supply to control the switching on and off of the rectified power supply.
7. The metal debris gripping device according to claim 6, wherein the controller is further communicatively connected to a transmission of the rotary gripping device to control the transmission to rotate in a first direction or to rotate in a second direction opposite the first direction.
8. The metal debris gripping device according to claim 7, further comprising a metal detector, wherein the controller is communicatively coupled to the metal detector to control rotation of the drive mechanism in a first direction in response to a signal from the metal detector.
9. The metal debris gripping device according to claim 7, wherein the rectified power supply comprises a brush in continuous close contact with the ring electrode for sliding friction conduction, and further comprising a current detector in communication with the controller for sending a short circuit signal to the controller for controlling the transmission mechanism to rotate in a second direction.
10. A method for gripping metal impurities in a belt conveyor, characterized in that the metal impurities in the material carried by the belt conveyor are gripped using the metal impurities gripping device according to any one of claims 6 to 9, comprising the steps of: S101, placing a metal detector in a material carried by an adhesive tape conveyor, and when the metal detector detects that metal sundries exist in the material, switching on a rectifying power supply by a controller to enable an annular electrode to supply power to a horizontal electrode and a vertical electrode of a grabbing piece; S102, the controller starts the transmission mechanism to rotate in a first direction to enable the grabbing piece to enter the material flow, and when metal sundries in the material flow pass through the grabbing piece, the metal sundries and the horizontal electrode or the vertical electrode are in metallic short circuit and are adhered to each other, so that grabbing of the metal sundries is realized; S103, when the controller detects a metallic short circuit through the current detector and judges that the grabbing of the metal sundries is completed, the rectification power supply is disconnected, the transmission mechanism is rotated in the second direction, the grabbing piece is driven to leave the material flow, the metal sundries are carried to return to the initial position, and the grabbing of the metal sundries is completed.

Description

Metal sundry grabbing device and grabbing method for adhesive tape conveyor Technical Field The invention relates to the technical field of mine production equipment, in particular to a metal sundry grabbing device and method for an adhesive tape conveyor. Background In the technical field of mine production equipment, the rubber belt conveyor is used as core equipment for ore material conveying, is applied to the whole production process in a large scale by mine enterprises, plays a key role in continuously and efficiently transferring minerals, and is an essential component in mine production operation. However, in the actual mine production process, the metal sundries such as the shovel teeth, the ore bin lining plates and the chute members are easily mixed into ore materials and enter the subsequent production links along with the conveying of the belt conveyor under the influence of multi-link operations such as mining, loading, unloading and transferring. If the metal sundries cannot be found and picked up in time in the conveying process, hard abrasion, blocking and even structural damage are easily caused to core mine production equipment such as crushers, rubber belt conveyors and the like in subsequent procedures, equipment failure shutdown is caused, equipment maintenance cost is increased, continuous production rhythm of mines is seriously interrupted, and obvious economic loss is caused for enterprises. In order to solve the problem of removing metal impurities in materials carried by an adhesive tape conveyor, a plurality of metal impurities removing methods and supporting devices are designed aiming at the supporting impurity removing requirements of mine production equipment in the prior art. The main technical scheme at present mainly comprises the steps of adding a magnetic iron removing device at the head of a tape conveyor, picking up and removing metal impurities in materials by means of a magnetic adsorption principle, wherein the device is used as a common matched impurity removing device of the tape conveyor and is widely applied to mine production, and the main technical scheme comprises the steps of arranging an electric turning plate structure at the head of the tape conveyor, integrally cutting the whole section of materials mixed with the metal impurities out of a production process through turning plate action, and then manually sorting and picking up the metal impurities from the cut materials. However, when the conventional two types of clearing schemes are applied to actual mine production, the technical defects and the using defects are obvious, and the impurity removal requirement of efficient mine production is difficult to meet, for the magnetic iron removing device, the magnetic iron removing device is affected by actual working conditions that metal impurities mixed in mine production are weak in magnetism and easy to be buried deeply by ore materials, the magnetic force absorption effect is poor, a large amount of weak magnetic metal impurities cannot be effectively absorbed and still enter a subsequent link along with the materials, for the electric turning plate clearing scheme, the precise cutting of the metal impurities cannot be realized due to the turning plate, the problem that the cutting amount of the materials is overlarge only can be realized in a whole section, the labor intensity of manual sorting is greatly increased, the ore materials are easy to waste, and meanwhile, the temporary stacking and treatment of a large amount of cutting materials also bring a great deal of inconvenience to the production management of mine sites. To sum up, the existing metal sundries removing equipment for the belt conveyor cannot adapt to complex working conditions of mine production, has obvious defects in the aspects of picking efficiency, practicality, field suitability and the like, and is highly needed to improve a metal sundries picking device of the belt conveyor in the mine production equipment so as to improve the metal sundries picking efficiency and adapt to continuous and efficient production requirements of mines. Disclosure of Invention Aiming at the defects in the prior art, the invention aims to provide a metal sundries grabbing device and a grabbing method for an adhesive tape conveyor, which are applied to mineral processing enterprises to pick up metal sundries in materials when the adhesive tape conveyor is used for carrying minerals so as to prevent the metal sundries from entering a mineral processing link and damaging equipment. In order to solve at least one of the technical problems, the invention adopts the following technical scheme: The invention provides a rotary grabbing device, comprising: The rotary turning plate comprises a mounting bottom plate and a transmission shaft, wherein one end of the mounting bottom plate is sleeved on the transmission shaft and fixed; The grabbing piece comprises a mounting substrate and a horizontal electrode a