Automatic Colloidal Layer Index Tester

Technical Features:

Complies with the technical requirements of GB/T 479-2000 "Method for Determination of Caking Index of Bituminous Coal";

Uses Siemens PLC as the core of the central control system, ensuring high reliability; the entire process requires no manual intervention, enabling automatic measurement and control of test temperature, X-displacement curve, and plastic layer thickness (Y-value), with real-time display of the overall equipment operation status on the computer screen;

Dynamic force robotic arm simulates the manual measurement process, enabling accurate measurement of lean coal and meager lean coal with Y-values less than 7;

Rapid replacement of furnace bricks and automatic determination of test end time improve work efficiency;

Horizontal arrangement of coal cups and vertical lever pressure application facilitate convenient coal loading, completely eliminating graphic distortion caused by cup jamming and inaccurate measurement data;

Mechanical loading and unloading of weights reduce the operator's labor intensity;

The robotic arm uses a ball screw mechanism (other companies use simple screw mechanisms with short service life);

Automatically saves temperature and volume dynamic data from each test for query at any time, allowing recovery of test data and curve records, and printing of result reports;

Features ultra-low temperature fault protection, ultra-high temperature fault protection, and thermocouple fault protection functions;

Includes temperature and displacement calibration functions.

Technical Parameters:

Temperature Control Section:

Temperature measurement resolution: 0.1°C;

Temperature measurement accuracy: Grade 0.5;

Temperature control process: Room temperature ~250°C, 30min, heating rate: approx. 8°C/min; test time resets and restarts timing, 250~730°C, 160min, heating rate: 3°C/min;

Temperature control accuracy: ±1°C;

X-Displacement Indicators:

Measurement range: 0~100mm, imported cable extension position sensor;

Measurement accuracy: 0.001.FS;

Sensor type: Photoelectric digital isolation type;

Inherent resistance: ≈0.1g;

Y-Displacement Indicators:

Measurement range: 0~200mm, imported cable extension position sensor;

Measurement accuracy: 0.001.FS;

Sensor type: Photoelectric digital isolation type;

Inherent resistance: ≈0.1g;

Measurement error: ≈0;

Pressure Sensor Indicators:

Measurement range: 0-50kg

Intelligent Robotic Arm Characteristics:

Y-value error: When Y≥20mm, error <2mm

When Y<20mm, error <1mm

X-value error: △<3mm

Silicon Carbide Rod Characteristics:

Resistance: 3-8Ω;

Effective heated length: 150mm, diameter 8mm;

Cold end length: 60mm, diameter 16mm;