Belt dryer is a commonly used continuous drying equipment, which can be widely used in chemical, food, medicine, building materials, electronics and other industries. It is used for the drying of flakes, strips and granular materials with good permeability. It is especially suitable for materials such as Chinese medicine decoction pieces with high water content and high material temperature.
The belt dryer has the advantages of fast drying speed, high evaporation strength and good product quality. The paste material of the dewatering filter cake can also be dried by granulator or extrusion mechanism.
If the belt dryer is used for dehydrating vegetables, three sets of equipment are generally used in series to form the initial dry section, the middle section and the final section. In the initial dry section, due to the high moisture content of the material and poor gas permeability, a small paving thickness, a relatively fast running speed and a high drying temperature are used. If the temperature of the material is not allowed to exceed 60 °C, the temperature of the drying gas in the initial dry section can be controlled below 120 °C; the residence time of the material in the final dry section is 3-6 times that of the initial dry section, and the thickness of the paving is 2 in the initial dry section. -4 times. For the requirement that the material temperature does not exceed 60 ° C, a drying gas of about 80 ° C can be used. The multi-stage combination can make better use of the performance of the DW series belt dryer, and the drying is more uniform.
Belt dryer maintenance procedures:
1. Daily maintenance content:
1 Before running the belt dryer every shift, check the valve pipe for no leakage;
2 Each rotating friction part should be regularly lubricated;
3 Check whether the grounding wire of each fan and electric control box is reliable;
4 Check whether the indications of each instrument are normal, and check it regularly by the measurement department;
5 Check the belt dryer for vibration, cracks, breakage, and corrosion;
6 test the operation of each motor is normal, regular maintenance;
7 Check whether the parts and fastening parts are loose, whether there is abnormal sound, and find out the faults in time;
8 Check some transmission mechanisms such as V-belts, chains, etc., whether the deformation is loose and wear, and adjust the chain tightness in time;
9 Check whether the electrical start and stop device is sensitive, accurate and reliable;
10All parts and components should be repaired and replaced as soon as they are damaged.
2. Annual maintenance and repair content:
1 Check all electrical devices to meet safety requirements;
2 comprehensively remove defects and restore the original performance and effects of the equipment;
3 Replace and repair worn parts and parts that have lost performance;
4 equipment overhaul.
3. Management records:
After the equipment is repaired and maintained, fill in the <equipment inspection and maintenance records>.
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