TT-D1 Coke Reactivityand Post-Reaction Strength Testing Device
(Single Furnace Top Loading Reactivity)
I. Product Introduction:
Our company's coke reactivity and post-reaction strength testing device is designed based on GB/T4000-2017 "Test Method for Coke Reactivity and Post-Reaction Strength". It is available in various models, including top-loading single furnace and bottom-loading double furnace. The equipment features high automation and stable test data, thoroughly addressing key factors affecting the accuracy of coke reactivity data: ① Sufficiently long constant temperature zone; ② Accurate gas flow; ③ Consistent coke ball specific surface area.
II. Product Function:
Three-stage temperature-controlled coke reactivity equipment. Each heating furnace has three independent heating zones, each independently controlled, solving the problem of similar products having only a static constant temperature zone without a dynamic constant temperature zone. The thermal reactivity and post-reaction strength of coke are important indicators of its high-temperature metallurgical performance. These indicators directly reflect whether the coke can still act as a skeleton support under the huge pressure of the lower part of the blast furnace stock column. Therefore, the testing of coke thermal reactivity and post-reaction strength is an important means to inspect coke quality and provides important production operation basis for the blast furnace smelting process.
III. Technical Features:
1. All adopt the latest national standard three-stage temperature control, with a dynamic constant temperature zone ≥300mm, far superior to the required 150mm in the national standard, resulting in more stable data.
2. Use a new type of insulation furnace lining, reducing energy consumption by more than 30%. The heating wire is imported from Sweden, with a lifespan of over 1000 furnaces, meeting one year's use without frequent replacement. The furnace chamber is three-stage, and the upper, middle and lower sections can be replaced individually, greatly reducing spare parts costs.
3. Adopt Siemens PLC (S7-200SMART) control system from Germany, with high reliability, strong anti-interference ability, and stable operation.
4. High-temperature resistant alloy steel processed high-temperature resistant alloy reactor with a service life of over 100 furnace runs (most other brands are 30-50 furnace runs). This can reduce the consumable material cost of the equipment by ¼.
5. Use high-precision (Horiba) mass flow controllers for gases, with monitoring and alarm for both high and low pressure. Dual furnace equipment has the function of automatically switching to another gas cylinder when gas pressure is insufficient. Even under unattended conditions, the equipment can operate normally.
6. The test furnace uses a single three-core thermocouple for temperature measurement, monitoring the temperature of the heating element and the upper, middle and lower sections of the sample in real time.
IV. Technical Parameters:
Gas Flow Control
1. Automatic switching of CO2 and N2, fully automatic gas control. Flow and gas switching are fully automatic, and CO2 heating is fully automatic.
2. Maximum flow: CO2: 6L/min; N2: 3L/min
3. Gas control response time: 1～2s; Pressure resistance: 1MPa
Temperature Control Cabinet
1. Temperature control range 0℃-1200℃, accuracy class 0.5, intelligent fuzzy control algorithm, no need for PID parameter adjustment and setting
2. Maximum control temperature: 1200℃±1℃
3. Control method: Computer + PLC control
4. Control cabinet dimensions: 550×600×450mm
High Temperature Heating Furnace
1. Furnace body material: 304 stainless steel
2. Furnace body dimensions: φ600×850mm
3. Maximum heating temperature of heating element: 1200℃
4. Thermocouple: Rhodium-platinum thermocouple (Type S)
5. Heating furnace power supply: AC380V±10% ≤6KW
6. Constant temperature zone range: When the furnace chamber maintains temperature at 1100±5℃, the axial constant temperature zone of the furnace chamber is ≥200mm
7. Furnace body weight: ≤80kg
Sieve
Round hole sieves: φ10, 23mm, 25mm.
Type I Drum
Rotation speed: 20r/min±1r/min.
Drum controller: Total revolutions 600r, time 30min±1min.
Drum body: Made from seamless steel pipe with outer diameter 140mm, thickness 5mm-6mm. Inner net length of drum 700mm, drum cover thickness 5mm-6mm.
Real-time digital display.
Rotation speed adjustable 0-25 R/Min.
