The hot air circulation oven is a general-purpose drying equipment, which is widely used for tray-type intermittent drying equipment, and is applied to raw materials of pharmaceutical, chemical, food, light industry, heavy industry, heating and dehumidification of products. Heating heat source steam, electricity, far infrared electric steam dual purpose.
The hot air circulation oven is a general-purpose drying equipment, which is widely used for tray-type intermittent drying equipment, and is applied to raw materials of pharmaceutical, chemical, food, light industry, heavy industry, heating and dehumidification of products.
Heating the heat source steam, electricity, far-infrared electric steam for dual use.
Use temperature: steam heating 50-140 degrees, up to 150 degrees.
Electricity, far infrared temperature 50-350 degrees.
Automatic control system and computer control system are available for users to choose.
Common steam pressure 0.02-0.8Mpa (0.2-8kg/cm2)
With electric heating, calculate 15Kw and practical 5-8Kw/h according to type 1.
Hot air circulating ovens are prone to problems during use:
1. The hot air circulating oven power supply fails:
When the power supply fails, check the specifications of the external power supply and the accessories are defective.
2. The hot air circulation oven temperature control is not normal:
When a temperature operation problem occurs, first check if the temperature setting is incorrect.
When abnormal temperature occurs, check the over temperature protection and contactor, and the solid state relay is defective.
3. Blower: Check if the contactor is defective.
Check if the motor is defective.
Check if the wind wheel is off.
Check if the power phase is bad.
How to safely use a hot air circulation oven?
The hot air circulation oven should be placed indoors at a clean level, kept dry, protected from moisture and moisture, and protected from corrosion.
There must be a certain space for the hot air circulation oven to be placed. The four sides should be separated from the wall by a certain distance. It is recommended to have more than 2 meters.
Check the voltage before use, the voltage required for the smaller hot air circulation oven is 220V, the larger the required voltage to the hot air circulation oven is 380V (three-phase four-wire), and the power supply knife with sufficient capacity is installed according to the power consumption of the hot air circulation oven. . And choose the right power cable. Also work on the grounding wire.
After the above work is ready, the sample can be placed in a hot air circulation oven, then connected to the power supply, the hot air circulation oven switch is turned on, and the hot air circulation oven with the air blowing device is turned on. The blower must be turned on during heating and constant temperature, otherwise it will be Affects the uniformity of the temperature of the working chamber and may damage the heating element. Then adjust the temperature of the suitable test products, and the hot air circulation oven will enter the working state.
The baked items should not be arranged too densely. The bottom of the hot air circulation oven (heat sink) should not be placed, so as not to affect the hot air circulation, and it is forbidden to bake flammable, explosive materials and volatile and corrosive items. After baking, cut off the power before opening the studio door. Remember not to touch the baked items directly. Use special tools or insulated gloves to remove the baked items to avoid burns. The hot air circulation oven should be kept clean in the work chamber.
When using a hot air circulation oven, the temperature should not exceed the maximum use temperature of the hot air circulation oven. Generally, the hot air circulation oven is below 250 degrees.
How to clean the hot air circulation oven?
Although you are cleaning the hot air circulating oven with water, it is considered to be clean. Actually, when you wash it with tap water or even ground water, because the water contains many minerals or impurities such as chloride ions, the workpiece is cleaned when the water evaporates. Impurities remain as a watermark by leaving a trace of solids on the object being cleaned. Therefore, in order to ensure that the cleaned workpiece does not leave a watermark, the last two cleanings before drying must use deionized water, purified water or distilled water, so that the cleaned workpiece will no longer leave traces of water after drying. The electroplating plants that produce high-grade electroplated parts now use deionized water, purified water or distilled water as the final cleaning of the workpiece. Of course, the compressed air used in the drying and the drying box should also be kept clean and free of oil.
The formed water marks can be removed by wiping with a cotton ball dipped in absolute alcohol. If the amount is too high, it is too much trouble to use alcohol. You can also soak it in a very thin hot washing powder, then wash it with tap water, and finally wash it with clean water. The watermark will not be there anymore.
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