Introduction: The thermal environment of traditional thermogravimetric analyzers is usually realized by direct electric heating methods, such as resistance wire heaters, infrared lamp heaters, and the temperature field is applied to the measurement sample by means of transmission, convection, and radiation; while microwave thermogravimetric analysis technology , innovatively uses microwave energy as the thermal environment energy provider, and expands the application scope and field of thermogravimetric analysis technology through microwave medium heating technology. Heat treatment, and directly led to the development of the following fields: 1. The field of thermal analysis: the relationship between microwave heating technology and sample materials, such as the relationship between dielectric constant εy and loss factor tgδ 2. Research field: As a heat source directly acting on the medium, microwave heating technology can realize large-capacity and volume sample processing in a macro environment 3. Testing field: microwave heating technology is efficient and clean, and it can be used in testing field, which can greatly improve testing speed and work efficiency Features: 1. Atmospheric microwave thermogravimetric analysis platform, suitable for testing and analysis of volatile solid residues (carbon, ash) in pyrolysis process 2. Support microwave thermogravimetric measurement of 50g weight range within 900˚C 3. Well structure, top pick-up and discharge, easy to operate 4. Closed air environment, support multi-channel mixed gas, positive pressure exhaust 5. Intelligent control system, temperature and power closed-loop controllable 6. The experimental data can be analyzed, the curve (Ft, TG, dTG) can be displayed and the data can be exported 7. User-customized and expandable functions: test tail collection (liquid and gas products) collection technical parameter microwave system 1. Microwave power: rated power 800W/2450MHz, stepless non-pulse continuous microwave power output 2. Microwave heating cavity design: ①The 304 stainless steel is welded in one piece, which is strong and reliable. The whole machine has a well-type structure and is easy to operate; ②It adopts the built-in filling thermal insulation structure, which does not require subsequent construction. The microwave cavity space has a high thermal insulation utilization rate and is suitable for higher temperature conditions; ③Using microwave heat preservation technology to greatly reduce the loss of energy; ④The thermogravimetric system was built by using the patented technology of "Microwave Thermogravimetric Analysis Device" with patent number ZL201821307125.9. 3. Inner cavity size: about 500ml, supporting multi-channel atmosphere penetration process conditions. functional system 1. Weight system: ①Weighing balance parameters: range up to 50g, accuracy 0.001g ②Material system: 20～50ml ceramic dish, used for temperature and weight disposal of high temperature carbonization and ashing process 2. Temperature control: ①Temperature range: common working temperature is 0～800℃, the highest is 900℃ ②Infrared temperature measurement, direct temperature measurement 3. Atmosphere conditions: support 3-way mixing, slightly positive pressure atmosphere conditions Control System 1. Using PLC programming control: good human-computer interaction, integrated control terminal, intelligent and controllable temperature and power 2. Touch screen dialogue window, easy and fast operation, real-time display of time, temperature, power curve, data can be read and stored 3. Multiple sets of program memory functions, which can store, modify, call, delete and other system operations on the program security system 1. Side-lifting top cover, multiple interlocking structure, open the door and power off to protect the operator 2. The top cover adopts a pressing structure, which has two functions of heat insulation and microwave leakage prevention, which protects the operator. 3. The top cover adopts λ/4 high-impedance microwave anti-current suppression structure to ensure the health and safety of operators. Microwave leakage: <5mW/cm2 (better than the national standard) 4. Set up a natural exhaust pipe at the top, used with a fume hood, it can quickly remove the high temperature exhaust gas in the furnace cavity and protect the operator Machine description: 1. Equipment power supply: 220Vac / 50Hz, power consumption of the whole machine: 1300W 2. Appearance size: main body about: 840×690×625mm (width×height×depth) 3. Equipment weight: 80kg
Introduction: The thermal environment of traditional thermogravimetric analyzers is usually realized by direct electric heating methods, such as resistance wire heaters, infrared lamp heaters, and the temperature field is applied to the measurement sample by means of transmission, convection, and radiation; while microwave thermogravimetric analysis technology , innovatively uses microwave energy as the thermal environment energy provider, and expands the application scope and field of thermogravimetric analysis technology through microwave medium heating technology. Heat treatment, and directly led to the development of the following fields: 1. The field of thermal analysis: the relationship between microwave heating technology and sample materials, such as the relationship between dielectric constant εy and loss factor tgδ 2. Research field: As a heat source directly acting on the medium, microwave heating technology can realize large-capacity and volume sample processing in a macro environment 3. Testing field: microwave heating technology is efficient and clean, and it can be used in testing field, which can greatly improve testing speed and work efficiency
