The JL-70 Experimental Coking coal Oven Tester is used for experimental research on conventional and stamped coking. It provides test data to guide and improve production, enabling the rational utilization of coal resources and the enhancement of coke product quality. Based on the cold and hot strength indicators of the produced coke, it helps explore suitable coal blending conditions, assess the economic feasibility for production, and provide data for the rational utilization of coal resources.

Technical Parameters:

1. Experimental Coking coal Oven

1.1 Coal charging capacity: >70 kg (wet basis, charging density 0.72 t/m³–1.03 t/m³)
1.2 Effective dimensions of the carbonization chamber (L×W×H): 660×420×650 mm
1.3 Coal charging box dimensions (L×W×H×thickness): 620×370×590×5 mm
1.4 Coal cake dimensions (L×W×H): 580×370×(400–500) mm (20 mm asbestos insulation is added on both longitudinal sides and the top of the coal cake in the charging box)
1.5 Heating system: 6 silicon carbide heating rods on each side of the combustion chamber
1.6 Coking time: 16–24 h (normally controlled at 22 h during testing)
1.7 Flue temperature: 1050°C ± 10°C (maximum rated temperature: 1350°C)
1.8 Center temperature of coke cake: ≥950°C

2. Central Control System

The system adopts PLC control technology, with computer-regulated heating temperature. The heating elements are controlled by the computer to achieve precise temperature control. It features high accuracy, reliable operation, and user-friendly functionality, with test data storage, display, and printing capabilities.

2.1 Power supply: 380 V, 50 Hz
2.2 Rated power: ≤70 kW
2.3 Temperature control program: Customizable heating curves and soaking times.
2.4 Accuracy: Class 0.5

3. Quenching System

Wet quenching is standard, with an optional dry quenching system.

4. 1/4 Coke Mechanical Strength Testing Drum (semi-automatic door for easy operation)

4.1 Drum internal diameter: Φ1000±5 mm; drum length: 250±5 mm; drum wall thickness: 8 mm
4.2 Rotation speed: 25±1 rpm (100 rotations in 4 min ±10 s)
4.3 Motor: 1.5 kW
4.4 Operating voltage: 380 V ±10%

5. Coke Shatter Strength Testing Device

5.1 Test box: 710×455×380 mm, steel plate thickness: 3 mm
5.2 Drop height: 1830 mm
5.3 Drop platform: 1220×965×200 mm, steel plate thickness: 12 mm
5.4 Motor: 1.5 kW
5.5 Operating voltage: 380 V ±10%

6. Coke Sieve Analysis Set (manual sieving)

6.1 Effective sieve area: 1000×700 mm
6.2 Sieve plates: Made of 2 mm cold-rolled punched steel sheets with square holes (80×80 mm, 60×60 mm, 40×40 mm, 25×25 mm)
6.3 Wooden sieve frame with handle

7. Coke Drum Strength Sieve (manual sieving)

7.1 Sieve area: 1000×700 mm
7.2 Sieve plates: Made of 2 mm cold-rolled punched steel sheets with round holes (Φ40 mm, Φ25 mm, Φ10 mm)
7.3 Wooden sieve frame with handle

8. DG-01 Stamping Machine

8.1 Purpose: Adjusts the density of coal before charging.
8.2 Technical specifications:

• Stamping density: 0.72–1.03 t/m³
• Maximum stamping height: ≤600 mm
• Stamping hammer stroke: 150 mm
• Dimensions: 1300×700×1700 mm
• Operating voltage: 380 V ±10%
• Weight: 450 kg