Scope of Application:

Applicable for determining the caking index of bituminous coal in the coal and metallurgical industries, and thereby describing the characteristics of coke, identifying the quality of coking coal, production coal, and commercial coal, thus determining the grade of bituminous coal.

Functional Features:

1. Utilizes a microcontroller for real-time control, automatically regulating the heating rate according to national standards, with a high degree of automation.

2. Features both automatic and manual control modes with seamless switching, adjustable control parameters, and stable performance.

3. Employs bright digital displays to simultaneously show test time, standard temperature, actual temperatures of the front and rear furnaces, and current opening.

4. Supports dual-control functionality, allowing simultaneous testing of two samples, with easy maintenance and simple operation.

5. Includes automatic cold junction compensation for thermocouples, reducing errors and ensuring high measurement accuracy.

6. Equipped with self-diagnosis, display, and alarm functions for timely fault detection and convenient maintenance.

7. Features automatic recovery after momentary power loss, saving time.

8. Offers excellent temperature tracking characteristics, particularly advantageous for highly caking coal types.

9. Possesses strong anti-interference capability, including restoration of test time, required temperature, conduction angle, and other operational parameters after power loss and recovery.

10. Enhanced integration and software implementation further improve testing accuracy and reliability.

Technical Parameters:

1. Measurement accuracy complies with GB/T479 requirements;

2. Temperature control range: 0-1100°C; Control accuracy: ±1°C;

3. Heating control: reaches 250°C within 30 minutes, 3°C per minute between 250-730°C;

Temperature measurement error: ±3°C; Temperature display resolution: 1°C;

4. Timing range: 0-999 minutes; Timing accuracy: 1 minute; Time display resolution: 1 minute;

5. Heating element: Silicon carbide rod; Temperature sensing element: K-type thermocouple;

6. Control power: 4kW×2; Continuous operation time: 24 hours;

7. Recording drum linear speed: 1mm/minute; Linear speed accuracy: 160(±2)mm/160 minutes;

8. Cold junction compensation: 0°C - 60°C;

9. Automatic alarm every 10 minutes after 250°C to remind recording of temperature and time.

10. Power supply: 220V±22V, 50Hz±1Hz;

11. Dimensions (mm): Main unit: 800×400×580mm;

Controller (L×W×H): 330×290×120mm;

12. Weight: Main unit 96 kg, Controller 7 kg.