The electric heating constant temperature blast drying oven is a commonly used laboratory equipment. The electric heating method is used to carry out the blast circulation drying test, and the hot air is blown into the circulation fan to ensure the temperature balance in the oven. It is suitable for drying, solidification melting, sterilization and other tests in industrial and mining enterprises, laboratories and scientific research institutes. It is used for drying, wax melting and sterilization, and it can also be used for laboratory constant temperature test. Under normal pressure, the drying box heats the material by heating, and the moisture in the material is vaporized and evaporated, thereby removing the moisture. However, for heat-sensitive materials, it is easy to produce adverse reactions such as shrinkage and hardening after heating, so it is best not to use blast heating drying oven laboratory to dry heat-sensitive materials.
Let's focus on the composition, characteristics and selection of our product - electric blast drying oven
Composition of blast drying oven laboratory
1. Product shell: high-quality cold-rolled steel plate electrostatic spraying, high temperature resistance, exquisite workmanship, beautiful appearance, good anti-corrosion performance and long service life. The inner tank of the box is made of mirror-finished stainless steel, equipped with two-layer shelves, and the height is adjustable, which is convenient for shelving samples; the inner tank of mirror-finished stainless steel is used, and the four corners are semi-arc transition.
2. blast drying oven laboratory is sealed and insulated: double-layer glass door structure, high temperature resistant silicone sealing ring, and insulation material in the box. A high-temperature-resistant high-tension sealing strip is used between the box door and the box to ensure the sealing of the test area, effectively preventing energy loss and prolonging the service life of the heating element, thereby ensuring the accuracy of the test data and the stability of the equipment. The electrical control system has the function of over temperature protection, and the digital display microcomputer temperature controller has timing function;
3. Temperature control system: intelligent microcomputer temperature control, with temperature calibration, timing and alarm functions. Power self-regulation, energy saving and consumption reduction. The drying box adopts PT100 platinum resistance temperature sensor, digital temperature regulator for temperature control, sensitive temperature control, easy operation, reliable performance, digital display of working temperature directly, intuitive and easy to read. It is widely used for melting, drying or other heating of samples. The maximum working temperature is 300℃, and the temperature accuracy can reach ±0.1℃. The electric heating constant temperature electric blast drying oven is suitable for measuring the moisture in coal, drying articles, drying heat treatment and other heating purposes.
4. All-copper motor: fully enclosed three-proof all-copper motor, solid workmanship, high temperature resistance and quietness, and can work continuously for a long time. The fuse is large, easy to burn, and safe to operate.
5. Oversized fan blades: The blast drying oven laboratory box has built-in oversized centrifugal blades left under the inner tank, and the air volume diffusion is better than that of ordinary fan blades, which is used to speed up the convection of hot air and make the temperature in the box uniform. The water vapor that is conducive to the evaporation of the items in the box is accelerated and dissipated into the air outside the box to improve the drying efficiency.
Features of electric heating blast drying oven
1. Use Chinese standard copper.
2. High efficiency, with cooling, long running time.
3. High temperature resistance and low noise.
4. Turbine centrifugal design, strong wind takes away the heat of the electric heating tube, ensures the cabinet temperature and prolongs the life of the electric heating tube.
5. Tight seal and good elasticity.
6. No deformation, high temperature resistance, no aging, to ensure accurate and stable temperature.
7. Heat and sound insulation.
8. It is convenient for real-time observation.
Selection of electric blast drying oven
Each dryer device has its own specific scope of application, and for each material, there are several drying devices that can meet the basic requirements, but only one is the most suitable. If the model is improperly selected, the user will not only have to bear the unnecessary one-time high purchase cost, but also pay a heavy price during the whole service period, such as low efficiency, high energy consumption, high operating cost, poor product quality, and even fundamental installation. not functioning properly, etc. The article gives the general principles for the selection of dryers. It is difficult to say which item or items are the most important. The ideal selection of electric electric heating blast drying oven must focus on their own conditions, and sometimes a compromise is necessary.
1. Applicability: The drying device must first be suitable for specific materials and meet the basic requirements for drying materials, including the ability to handle materials well (feeding, conveying, fluidization, dispersion, heat transfer, discharge, etc.), And can meet the basic requirements of processing capacity, dehydration capacity, product quality and so on.
2. High drying rate: only in terms of drying rate, the material is highly dispersed in hot air during convection drying, the critical moisture content is low, and the drying speed is fast. Also different.
3. Low energy consumption Different drying methods have different energy consumption indicators: the thermal efficiency of general conduction drying can theoretically reach 100%, and convection drying can only be about 70%.
4. Save investment: Drying devices that complete the same function sometimes have very different costs, and the lower one should be selected.
5. Low operating cost: The cost of equipment depreciation, energy consumption, labor cost, maintenance cost, and spare parts cost should be as low as possible.
6. The electric heating blast drying oven is preferably a drying device with simple structure, sufficient supply of spare parts, high reliability and long life.
7. Meet environmental protection requirements, good working conditions and high safety.
8. Before selecting the model, it is best to do the drying experiment of the material, and to have a deep understanding of the advantages and disadvantages of the drying device that has been used for similar materials.