Large capacity electric muffle furnace
The muffle furnace is a universal heating equipment in the laboratory. Mainly used for ashing, sulfonation, melting, drying, wax removal, fusion, heat treatment, ignition residue and ignition loss of various organic and inorganic substances. At present, common muffle furnaces in the laboratory include electric muffle furnace, microwave muffle furnace and gas muffle furnace. The structure of the muffle furnace is mainly composed of insulation materials, furnace, temperature control components and electric control components.
The working principle of the muffle furnace:
The biggest difference between electric muffle furnace, microwave muffle furnace and gas muffle furnace is the heating principle. Electric heating flows through a conductor with a certain resistance through current, so that the conductor generates Joule heat and continuously provides external thermal energy. The heating element converts electric energy into heat energy, and generates high temperature in the furnace through heat conduction, heat convection and heat radiation. The microwave muffle furnace converts electrical energy into microwaves and then into heat energy. The material in the furnace or the heated object itself absorbs microwaves and generates heat, thereby generating high temperature. The structure includes a magnetron, a wave turning mechanism, a microwave shielding cavity, an electric control element, a temperature control element and a wave absorbing heating material. As a green and efficient heating method, microwave heating has the advantages of selective heating, fast heating rate, short reaction time, easy automatic control, and lower chemical reaction temperature compared with conventional heating methods. The gas muffle furnace converts chemical energy into heat energy. When the fuel is burned in the furnace cavity, the chemical energy will be converted into heat energy during the combustion process, resulting in high temperature. The gas-fired muffle furnace is the simplest of the three muffle furnaces, with large heating chamber, fast heating speed and flexible temperature control.
Application of muffle furnace:
Our muffle furnace has excellent control system performance in the application of new materials, and is in a leading position in the design of furnace body structure, cooling system, conveying system, control system, safety protection, etc. Our products have the characteristics of serialization and specialization, and have a number of invention patents in automatic control, structural design and temperature field technology.
Conclusion:
In the future, the development trend of laboratory muffle furnaces will be to develop customized, personalized, intelligent, and high-tech products with high added value according to the specific needs of users and the industry.
