Desktop Laboratory Excessive Temperature Blast Drying Oven
Vacuum drying oven and blast drying oven are two kinds of drying equipment commonly used in our laboratory. We know that to dry the dry material, it is nothing more than to achieve the purpose of drying by direct heating, vacuuming and negative pressure dehumidification. When we choose a drying oven, we must understand the difference and application range between the vacuum drying oven and the blast drying oven.
The vacuum drying box uses a vacuum pump to pump the space where the dry material is located to a negative pressure, which is the so-called vacuum state. In a vacuum state or a low pressure state, the boiling point of the moisture, solvent and other volatile components in the material decreases, so that it can be separated from the surface of the material particles and be pumped away by the vacuum pump at a lower temperature. It is mainly used in those materials that oxidize, polymerize and undergo other chemical reactions at high temperatures. Of course, it also has the dual function of heating to accelerate the volatilization of moisture, solvent and volatile components so as to separate from the surface of the material.
The high temperature blast drying oven(dzf 6050 vacuum drying oven) is used to inspect the parts and materials of related products such as electronic electrician, automobile and motorcycle, aerospace, rubber, plastic, metal, ship weapons, colleges and universities, scientific research units, etc. various performance indicators. It is designed for drying heat-sensitive, easily decomposable and oxidizing substances, and can be filled with inert gas, especially some complex items can also be quickly dried.
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The high temperature blast drying oven uses a heating tube to heat the box, and the heating pipe is located at the bottom of the box, so the electric heating constant temperature blast drying oven has a blowing device on the side of the box, and the blower is turned on while the drying oven is working. It can make the temperature of the studio more uniform, and avoid the phenomenon that the temperature difference between the upper layer and the lower layer in the box is too large.
Electric blast drying oven is used for drying, baking, wax melting and sterilization in industrial and mining enterprises, laboratories, scientific research units, etc.
Features of electric blast drying oven：
1. The outer shell is made of cold-rolled steel plate, the surface is electrostatically sprayed, the inner wall is mirror stainless steel, and the clapboard can be adjusted arbitrarily;
2. The temperature control system adopts microcomputer single chip technology, and the system has functions such as temperature control, timing and over-temperature alarm;
3. Reasonable air duct and circulation system, so that the temperature uniformity in the work room changes little;
4. Using dual-screen high-brightness digital tube display, touch-button setting adjustment;
5. Adopt imported motor and fan blades, with air convection breeze device, the air in the inner cavity can be renewed and circulated;
6. The box door has a large viewing angle observation glass window, which is convenient for users to observe;
7. The use of nano-material door seals and thermal insulation materials makes the performance of the whole machine more superior;
8. It has parameter memory and call recovery function to protect data loss due to power failure and crash state.
Matters needing attention:
1. The electric heating blast drying box is a non-explosive drying box, so do not put flammable and volatile items into the drying box to avoid explosion.
2. When using, the power supply voltage must be consistent with the rated working voltage of the phase box, otherwise it may cause damage to the electronic instruments in the box.
3. The average load of the sample shelf is 15 kilograms per square meter. When placing the sample, do not place it too densely or overloaded. At the same time, no sample or other things can be placed on the heat sink to affect the convection of hot air.
4. The installation position of each heating wire of the heater must be checked before use, in order to prevent the heating wire from overlapping or colliding with the accident.
5. Do not disassemble the parts arbitrarily, so as not to damage the electrical circuit in the box.
Excessive Temperature Circulating Blast Drying Oven Scorching Circulating Air Blast Plant Drying Oven
On the surface, there is not much difference between the difficulty of manufacturing the electric blast drying oven. The actual difficulty is that when the air is heated to a high temperature above 350°C, the movement of the gas becomes very difficult to control. Even under the condition of forced blasting, the flow of the gas is still disordered, so the design requirements for the air duct very high. The air duct should vary for different studio sizes. In order to obtain reasonable data, it is often necessary to go through repeated experiments. In order to obtain a higher uniformity index, the cost of manufacturing Yao's test box is much larger than that of drying box.
Because of the low index of the drying box, ordinary instruments can be used. The test box must use an instrument with high-precision PID calculation function, and sometimes for the needs of the test, the instrument must be able to run the program. In use, the PID value of the high temperature section can be obtained through self-tuning, and sometimes the operator needs to make certain modifications to the value obtained from the self-tuning.
Functional characteristics of electric blast drying oven:
1. The fire control system of this machine adopts the technology of microcomputer single chip, temperature control, fixed meter, and over temperature alarm.
2. The proper air duct and repetition system make the temperature uniformity change in the working room small.
3. The display is liquid crystal display, the displayed value is precise and macroscopic, the function is favorable, and the adjustment parameters can be set by the touch button.
4. The fire control sensor adopts the original export components of storage capacity.
6. The box door has a large viewing angle of thermal insulation tempered glass, which is convenient for users to inspect. The use of nano-material door cover and thermal insulation material makes the performance of the parts more favorable.
7. The inner tank is made of stainless steel material with card surface; the four corners of the arch are easy to clean.
8. The shelf in the working room can adjust the height and the number of shelves arbitrarily according to the user's request.
9. The use of export generators and fan blades, with repeated trace winds, can help users to eliminate the confusion about the problem of large or powdery objects being blown away.
10. Adopt the design of the international original streamline arc shape, the shell is made of steel plate, and the name is electrostatic spraying.
The temperature control instrument electric heating constant temperature blast drying oven uses comprehensive electromagnetic compatibility presets and humanized point menu presets, and uses the self-adaptive temperature control technology independently developed by the company to implement temperature control. In the past, the PID control technology required multiple parameter setting, temperature overshoot and other drawbacks, and the temperature control effect was improved. Dual-screen high-brightness wide-window digital display, the displayed value is clear and intuitive. Microcomputer intelligent control, after setting the temperature, the instrument controls the heating power by itself, and displays the heating status, the temperature control is very accurate and stable. Over-temperature alarm and semi-automatically cut off the heating power. There is a timing function, and the fixed time can be up to 9999 minutes. It has the parameter memory and the function of recovering the incoming call to take care of the value lost due to power failure and crash.
Thermal insulation layer: the first domestically created, high-performance insulation structure. From the inside to the outside, there are inner cavity, inner shell, ultra-fine glass fiber, air interlayer, and the calorie loss of the inner tank is small. The inner and outer boxes have a special door-to-door mechanism, which greatly reduces the spread of calories in the inner cavity.
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The inner and outer structure of the box: the inner tank is made of stainless steel, and the semi-circular four corners are preset to make cleaning more convenient; the calories of the electric heater placed on the back of the box are discharged forward through the side air duct, and then passed through the dry material and then washed by the back. The high-performance special fan is inhaled to form a reasonable air duct, which can make the hot air fully convect and make the upper limit of the temperature in the box reach the average.
The external structure of the electric heating constant temperature blast drying box: using the first domestically created streamlined arc preset, the outer shell is made of cold-rolled steel plate, and the surface is electrostatically sprayed; the shelf in the office can be arbitrarily adjusted in height and shelf size according to the user's requirements. number;
Viewing window: The box door has a large viewing angle to check the glass window carefully, which is easy for users to check carefully. The use of nano-material door seals and thermal insulation materials makes the performance of the whole machine better.
