TT-E2 Dual Furnace Bottom Loading Reactivity Tester
I. Product Introduction:
Our companycoke reactivityand post-reaction strength testing device is designed based on GB/T4000-2017 "Test Method for Coke Reactivity and Post-Reaction Strength". It comes in various models including top-loading single furnace and bottom-loading dual furnace. The equipment features high automation and stable test data, addressing key factors affecting coke reactivity data accuracy: ① sufficient constant temperature zone; ② accurate gas flow; ③ consistent specific surface area of coke balls.
This system is suitable for determining coke reactivity and post-reaction strength.
II. Product Function:
Coke thermal reactivity and post-reaction strength are important indicators of coke high-temperature metallurgical performance. Coke with good reactivity can promote indirect reduction in the upper and middle parts of the blast furnace and release a certain amount of heat, helping to reduce the coke rate. Coke with poor reactivity leads to excessive direct reduction in the lower part of the blast furnace, absorbing a large amount of heat, thereby increasing the coke rate and raising the cost of blast furnace smelting.
The post-reaction strength index of coke directly reflects whether the coke can still play a supporting role under the huge pressure of the lower part of the blast furnace burden column. Therefore, the testing of coke thermal reactivity and post-reaction strength is an important means to inspect coke quality, providing important production operation basis for the blast furnace smelting process.
III. Technical Features:
1. All adopt three-stage temperature control as required by the latest national standard, with a dynamic constant temperature zone ≥300 mm, far superior to the 150 mm required by the national standard, ensuring more stable data.
2. Uses new type of thermal 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 of use without frequent replacement. The furnace chamber adopts a three-section design, each of which can be replaced individually, greatly reducing spare part costs.
3. Adopts Siemens PLC (S7-200SMART) control system from Germany, with high reliability, strong anti-interference capability, and stable operation.
4. High temperature resistant alloy steel processed high-temperature resistant alloy reactor, with a service life of over 100 furnace cycles (most other brands have 30-50 furnace cycles). This can reduce consumable costs by 1/4.
5. Uses high-precision (Horiba) mass flow controllers with monitoring and alarm for both high and low pressure. The dual-furnace equipment has an automatic gas cylinder switchover function when gas pressure is insufficient. Even under unattended conditions, the equipment can operate normally.
6. The test furnace uses a single thermocouple with three measuring points to monitor 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, automatic flow adjustment. Fully automatic flow and gas switching, fully automatic CO2 heating;
2. Gas flow calibration: default standard calibration; Maximum flow: 10L/min [CO2]; 10L/min [N2];
3. Response time: Gas characteristics: 1-2s; Electrical characteristics: 1s;
4. Pressure resistance: 1MPa;
Temperature Control Cabinet
1. Cooling method of control instrument: air cooling (built-in intelligent fan), quasi-silent mode;
2. Noise: Air cooling working: approx. 40-45dB; Air cooling stopped: 0dB;
3. Temperature control range: 0℃-1150℃, accuracy grade 0.5;
4. Temperature control fully automatic, intelligent fuzzy PID algorithm to improve temperature control accuracy;
5. Operating voltage: AC 380V ±10%;
6. Total power: ≤12KW;
7. Maximum control temperature: 1150℃;
8. Furnace temperature control accuracy: ±1℃;
9. Control method: computer control;
10. Dimensions of control instrument: Width × Height × Depth = 600×1600×600mm;
11. Weight of control instrument: ≤40kg.
High Temperature Heating Furnace
1. Furnace body material: 304 stainless steel;
2. Dimensions of furnace body: Φ600mm×850mm;
3. Furnace lining material: zirconium-containing ceramic fiber;
4. Furnace lining dimensions: Φ360mm×Φ160mm×760mm;
5. Maximum heating temperature of heating element: 1200℃;
6. Thermocouple: Rhodium-Platinum thermocouple (Type S);
7. Heating furnace power supply: AC380V ±10%;
8. Total power: ≤12KW;
9. Constant temperature zone range: When the furnace chamber maintains a temperature of 1100±5℃, the axial constant temperature zone of the furnace chamber is ≥200mm;
10. Lifting device travel: 700mm; Lifting device load capacity: not less than 20kg;
11. Total weight of furnace body: ≤180kg.
Sieves
Round hole sieves: Φ10mm, 23mm, 25mm.
Type I Drum
1. Rotation speed: 20r/min±1r/min;
2. Drum controller: total revolutions 600r, time 30min±1min;
3. Drum body: made of seamless steel pipe with outer diameter 140mm, wall thickness 5mm-6mm. Drum net length 700mm, drum cover thickness 5mm-6mm;
4. Real-time digital display;
Computer Control
1. Fully automatic control;
2. Supports user programming. Especially suitable for research experiments of this subject;
3. Self-diagnosis function. It can automatically diagnose common system faults and provide alarms and corresponding error prompts.
