Microwave Material Workstation - Microwave Ashing Oven

Scope of application:
Suitable for calcination, roasting, sintering, high-temperature synthesis, ashing, melting, and heat treatment of various solid materials under air atmosphere; Widely used in coal, coking products
Volatile matter of coke ash content (fast ash, slow ash) in chemical raw materials; And ashing treatment of other organic and inorganic materials; Used for trace, trace, and radioactive elements (nuclides)
Rapid ash preparation for analytical processes; Can meet the existing GB14883 "Methods for analysis of radioactive substances in food and drinking water" and GB16145 "Methods for analysis of radioactive substances in biological samples"
All biological and environmental sample tests involved in the "Gamma Spectroscopy Analysis Method for Radionuclides"

Product features:
★ Efficient ashing:
In a continuous process, it is possible to replace the three independent processes of drying, carbonization, and ashing in traditional processes, greatly reducing labor intensity and operating time
2. By utilizing the efficient energy conversion and transfer mode of high-temperature microwave energy and the high concentration of "oxygen flow", the ashing time is greatly reduced. Microwave ashing shortens the ashing time from the traditional "hour" to "minute" timing,
Directly ashing without carbonization process greatly improves work efficiency, and most samples can be completely ashed within 10 minutes
3. Configurable ultra high speed ashing and heating module: can achieve instantaneous fastest heating speed for any sample: about 1000 ℃/min (small sample or no-load). It only takes 1-3 minutes to heat up the small sample to the ashing temperature
Uniform heating during microwave ashing process to avoid "explosion" phenomenon caused by microwave concentration during ashing process
★ Equipped with an exhaust channel, it can quickly discharge the gas generated during the heating process
★Multifunctional: One instrument can achieve three heating methods: pure microwave heating, traditional electric heating, and mixed heating; Adapt to heat treatment of any non flammable sample, including metals and alloys
★Exclusive developed microwave field specific sensor for precise temperature control
★Safety:Exclusive use of four level interlocking protection shielding measures to prevent leakage, safe and reliable microwave shielding cavity design, multiple leak prevention protections
*Electromagnetic lock protection
*Travel switch (automatically cuts off the microwave generator when the furnace door is opened)
*Equipped with professional microwave suppressors as standard
*Built in microwave leakage sensor
★Energy saving:Long service life: Magnetron microwave heating avoids and solves the problem of traditional heating elements such as heating wires, silicon carbon rods, and silicon molybdenum rods being easily damaged, and also avoids the risk of damage to heating elements
The various losses caused by time, experimental progress, maintenance costs, etc
★ Adopting a stepless adjustable continuous wave micro wave source to ensure that the equipment can operate continuously and stably for a long time
★Embedded microcomputer integrated temperature control system; Realize stable temperature control
★ No need for oven drying process: Microwave energy directly reaches the material, saving traditional long oven drying time
★ Microwave energy is available immediately, without thermal inertia, and easy to control temperature
★ Various original dedicated crucibles are available for selection, with modular insulation structure and no pollution to materials
★ Equipped with swivel wheel adjustable feet for easy movement and fixation

Technical parameters:

Model/model	WBH-2		WBH-4
Heatable material	Any material that is not flammable or explosive
microwave frequency	2.45GHZ±50MHz
Heating method	Pure microwave heating, traditional electric heating, mixed heating
Maximum power/KW (continuously adjustable)	2		4
Maximum working temperature/℃	1600
Long term working temperature/℃	≤1500
Temperature testing component	Microwave field specific sensor
Temperature resolution/℃	0.1
Temperature control accuracy/℃	± 1 below 1200 ℃; Above 1200 ℃ ± 2 ℃
Atmosphere system	Standard air atmosphere, optional oxidative, protective, and weakly reducing atmosphere devices
Furnace cavity size (length, width, depth)/mm	300´300´450		400´400´550
Heating chamber (material)	ceramic fiber
Number of heating chambers/piece (standard)	Three heating chambers with a diameter of 100mm and 120mm
	(Heating chamber model and size see Appendix 2)
Heating rate (standard)	0～80℃/min Arbitrary setting, programmable, segmented heating	0～250℃/min Arbitrary setting, programmable, segmented heating
Temperature controller	10 segments with adjustable process parameters, 7-inch touch screen operation, and data storage function; Provide manual, automatic, and constant temperature control modes, with real-time curve display
Power supply voltage (V)	220
Quartz crucible ashing capacity/L	1L ´ 1 (other specifications are optional; if it exceeds 2 liters, pure microwave heating can only be used due to limitations in the heating chamber)
Ashing mode	High throughput batch processing ashing mode is optional
Exhaust System	standard configuration
Dimensions (length, width, height, including smoke exhaust system)/mm	750´1100´850		1000´1200´850
Microwave leakage rate/mW/cm2	≤0.4

Ashing process table (for reference only)

sample	Ashing temperature/℃	Microwave ashing time/min	Traditional ashing time/min
Plants	450-550	20	90
meat	550±20	15	240
bone	820-910	15	60
activated carbon	750	20	180
coal	750	20	120
feed	575	15	90
PVC	900	15	120
polyester	600	15	480
polyurethane	900	15	120
rubber	550	20	90
Lime, cement	1050	10	60
Feed (plant)	575	20	90
polypropylene	800	22	80
Dried egg yolk	925	25	240
dry powder	900	50	360
Polyester (including filler)	600	15	480
Residual oil of petroleum	540	45	480