LGTOnline steel wire rope flaw detector monitoring system

■LGTon-linea wire ropeFlaw detectorThe monitoring system is a set of monitoring and surveillance equipment installed on the operating steel wire rope according to the actual situation of the coal mine, so that the equipment can automatically operate and self diagnose without human interference. Through the monitoring and control of industrial computers, the operating status of equipment is automatically monitored to achieve optimal working conditions, thereby effectively saving energy, reducing labor intensity, lowering operating costs, and extending equipment service life.

■For a long time, due to the lack of effective monitoring methods, only simple methods such as manual touch, visual inspection, caliper measurement, and relying on experience and intuition can be used to inspect steel wire ropes. However, due to the long length of steel wire ropes, manual inspection is inconvenient and there are four major problems: "unreliability, insecurity, uneconomical, and low efficiency". Moreover, manual inspection cannot detect steel wire ropes in real time, and once problems occur, they cannot be detected in a timely manner. Moreover, the maintenance cycle of steel wire ropes is long and cannot be predicted in advance, which affects production.

■The latest generationLGTtypeon-lineThe steel wire rope monitoring system fully meets the challenge of long-term real-time monitoring of various online steel wire ropes. In order to monitor the operation status of steel wire ropes in real time, effectively ensure the safe operation of equipment, extend the service life of equipment, and achieve high production and efficiency in mines, it is necessary to conduct real-time online monitoring of the status of steel wire ropes.

■Function Introduction:

1. LGTon-lineThe steel wire rope monitoring system fully complies with the technical requirements of the following national standards for testing instruments:

Coal Mine Safety Regulations;

◆ GB/T21837-2008Electromagnetic Testing Method for Ferromagnetic Steel Wire Rope

◆U.S.AASTM E1571-2001Standard Specification for Electromagnetic Inspection of Ferromagnetic Steel Wire Rope

Technical Specifications for Non destructive Testing Instruments - Steel Wire Rope Electromagnetic Testing Instrument

2. Fixed installation, realizing online detection and real-time monitoring functions;

3. Can accurately determine the precise position (relative position) of the broken wire part of the steel wire rope;

4. Capable of providing sound and light alarm signals;

5. The software automatically generates a database by date, saves detection data, and generates detection reports. It has the function of printing curves and reports, and can automatically count the number of broken wires in the same twist length of the steel wire rope;

6. Capable of displaying one or more wire rope detection curves on the same interface;

7. When the steel wire rope undergoes reciprocating motion, the system can automatically control the reciprocating cycle for tracking and monitoring

8. Capable of remotely configuring sensor parameters online;

9. Capable of handling wire rope shaking, ensuring that wire rope shaking does not affect the normal operation of equipment;

■Technical parameters:

1. Diameter of the tested steel wire rope:8～60mm(Determined by sensors)

2. Allowable relative speed between sensor and wire rope:0～10m/s

3. Allowable gap between sensor guide sleeve and steel wire rope:0～10mm

4. The sensitivity of the detector should comply with the specifications in the table below:

The unmeasurable area should be less than the total length of the steel wire rope2%

The accuracy of qualitative detection shall not be less than98%.

The accuracy of quantitative detection of broken wires shall not be less than90%.

◆ Quantitative change rate of metal cross-sectional area（LMA）Detection capability:

Detection sensitivity repeatability allowable error: ±0.055%　

Allowable error of detection accuracy indication: ±0.5％

◆ Location（L）Detection capability: Percentage error of length indication: ±0.3%

◆ Environmental temperature:-20℃～+40℃ Atmospheric pressure:86～106kPaRelative humidity: ≤85％

■ Main configuration:

1. One set of sensing components (standard)LGT-RTAccording to the user's monitoring of the number of steel wire ropes, the quantity can be increased

2. One analog-to-digital converter

3. One electronic control component box

4. A pair of signal lines

5. One data transmission cable (standard length)200m, can be added according to on-site requirements)

6. One set of fixed supporting brackets (can be added according to the number of sensing components)

7. Computer A set

8. LGTA set of monitoring system software (single rope version, double rope version, and multi rope version system software can be selected according to the configured system requirements)

9. A set of random tools

10. User manual, technical data - set

■ Optional accessories:

1. Special on-site installation racks need to be designed and installed separately according to the requirements of the site conditions;

2. Wireless transmitters (point-to-point, point-to-point group transmission) can be added;

3. Network monitoring component, implementing network upload, can perform monitoring functions in the monitoring room.