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 (thermobalance) test platform, suitable for the test of volatile matter, carbon content and ash content in pyrolysis process 2. Support microwave thermogravimetric measurement of 50g weight range within 800˚C 3. Closed air environment, positive pressure exhaust, exhaust gas can be collected and tested 4. Intelligent control system, temperature and power closed-loop controllable 5. The experimental data curve is displayed and the data can be exported 6. User-customized and add-on expansion functions: microwave and electric heating two-in-one functions, 0.0001g precision weighing system Technical parameter microwave system 1. Microwave power: rated power 800W/2450MHz, stepless non-pulse continuous microwave power output 2. Microwave heating cavity design: ①304 stainless steel is welded together, which is strong and reliable; 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 8L, suitable for multi-weighing vessel testing system. 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 the latter carbonization and ashing process after high temperature combustion 2. Temperature control: ①Temperature range: common working temperature 0～800℃ ②Infrared temperature measurement, direct temperature measurement 3. Atmospheric conditions: positive pressure exhaust, exhaust gas can be recovered 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. The door body has multiple interlocking structure, the door is powered off, and the operator is protected 2. The door body adopts a side-pull locking structure, which has two functions of heat insulation and microwave leakage prevention, protecting the operator. 3. The door body 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. The top of the equipment is equipped with a natural exhaust pipe, which can be used in conjunction with a fume hood to 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: 550×750×600mm (width×height×depth) 3. Equipment weight: 50kg
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
