The HT-H2000-2 is a automatic instrument for measuring Coking coal reactivity and post-reaction strength, featuring a three-zone dual-control reactivity testing system.

Features:

1. Utilizes imported high-temperature heating elements with an integrated electromechanical design. The reactor loading/unloading mechanism employs bottom-mounted mechanical transmission for easy installation and operation.
2. The control system is based on Siemens PLC technology, with gas flow regulated by mass flow controllers (MFCs) for precise and real-time flow measurement and display. Features self-learning temperature control algorithms, programmable settings, and multiple control modes including open-loop stepwise and closed-loop fully automatic.
3. Temperature transmitters use two-wire solid-state modules with automatic temperature compensation and linearization.
4. Capable of simulating the entire testing process to verify system performance.
5. Automatically activates the ventilation system during testing to expel indoor CO gas, ensuring operator safety and air circulation.
6. Connects to a touchscreen computer for real-time display of temperature and gas flow curves. Includes a CO2 flow deficiency alarm.
7. Equipped with over-temperature alarm and automatic shutdown to prevent damage from thyristor failure, thermocouple damage, or signal interference.
8. Includes over-pressure protection.
9. Thermocouples are protected by GH3030 high-temperature alloy steel sleeves.

Technical Parameters:

A. Standard Control Process:

• Heating from room temperature to 1100°C at a rate of 15°C/min (adjustable).
• Introduces 0.8L/min N2 for protection at 400°C.
• Preheats CO2 at 1050°C.
• Stabilizes at 1100±5°C for 10min, then switches to 5L CO2 for a 2h reaction.
• Furnace stops heating; reactor descends and exits the furnace. CO2 is cut off, and 2L N2 is introduced for protection.
• An alarm sounds when the coke cools to 100°C, marking the end of the test.
• The entire process is automatically controlled by a Siemens PLC.

B. Temperature Control:

1. Three-point thermocouples: Type S or N, Class 0.5; control accuracy: 1100°C±3°C.
2. Protection tube: Alumina.
3. Heating program: Room temperature to 1100°C at 15°C/min; holds at 1100°C for 2h.

C. Flow Control:

1. Automated mass flow controller (MFC); includes 2 drying tubes.
2. N2: 0-10L adjustable; CO2: 0-10L adjustable.
3. Accuracy: ±1.5% F.S.

D. Reactor:

1. Material: GH3044; maximum operating temperature: ≤1400°C.
2. Reactor dimensions: Inner diameter Φ80mm.

E. Type I Drum:

1. Dimensions: Φ140mm×700mm; wall thickness: 5mm.
2. Rotation: 20±0.5 rpm, automatically controlled for 600 rotations with automatic counting.

F. Test Sieves:

1. Square-hole sieves (optional, ISO standard): 19mm, 22.4mm, 10mm.
2. Round-hole sieves: 23mm, 25mm, 10mm.

G. Furnace:

1. Integrated furnace chamber; rated power: 7.5KW.
2. Power supply: Three-phase five-wire system with balanced load.
3. Three independently controlled heating zones with a 300mm uniform temperature zone. Displays upper, middle, and lower temperature control curves on the touchscreen.
4. Maximum operating temperature: ≤1250°C.
5. Dimensions: 1000mm×850mm×1800mm.
6. Total weight: <500kg.