Microwave drying is different from the traditional drying method in that the heat conduction direction is the same as the water diffusion direction. Compared with the traditional drying method, the microwave dryer has the advantages of large drying rate, environmental protection and energy saving, high production efficiency, uniform drying. It is easy to implement automation control and improve product quality, so it is widely used in various fields. At present, microwave drying technology is now used in food industry, material chemical industry, pharmaceutical industry, mineral mining industry, ceramic industry, laboratory analysis, wet natural rubber processing and many other aspects.
Multi-layer Tunnel Microwave Chinese Medicine Pill Dryer
Chinese medicine pill
The multi-layer tunnel type microwave Chinese medicine pill dryer is designed for multi-layer tunnel type, multi-layer drying, one layer cooling, and layer-to-layer inversion to ensure the quality of the product to the greatest extent.
Advantages of multi-layer tunnel type microwave Chinese medicine pill dryer:
1. Multi-layer tunnel type microwave Chinese medicine pill dryer has high heating uniformity and good material drying effect.
2. Multi-layer microwave Chinese medicine pill dryer can effectively reduce the energy loss of energy, and greatly improve the working efficiency of the equipment, the equipment runs stably, and ensures the product quality.
3. Multi-layer tunnel type microwave Chinese medicine pill dryer Chinese medicine pill dryer adopts multi-port feeding mode. Microwave electromagnetic field is fed from above each layer of material so that the material can directly receive the energy of electromagnetic field. Compared with the existing simple reactive loss from the side or other methods, it has high heating efficiency, the heating performance reaches 2-3 times of other feeding modes.
4. The cold air is sent from the outside, and the heat generated in the cabinet is discharged, which effectively prevents the appliance from overheating and maintains the temperature environment of the production workshop.In order to make the heat dissipation timely, the heat sources are separately set to ensure the air convection space is smooth.
Multi-layer tunnel type microwave Chinese medicine pill dryer
Structural composition of multi-layer tunnel type microwave Chinese medicine pill dryer:
The multi-layer tunnel type microwave Chinese medicine pill dryer includes three parts: material transfer equipment, microwave drying system and control cabinet.
Material transfer equipment
The material transfer equipment includes a material lifting device set at the feed inlet of the dry chassis and a multi-layer transfer tunnel disposed in the dry chassis, the material transfer belt is set in the transfer tunnel, the multi-layer transport tunnel includes several layers of drying layer and a layer of cooling In the layer, the top of the tunnel of the drying layer is provided with a microwave feed port, the cooling layer is connected with the refrigeration device.
Microwave drying system
1.The microwave drying system includes a microwave generating cabinet that is set on a back side of the drying machine, a power generating system and a microwave generator are arranged in the microwave generating cabinet. The microwave generator is connected to the microwave feed port of the drying layer through a waveguide, and a microwave suppressor is arranged between the microwave generating cabinet and the drying cabinet. The microwave generator is connected to the microwave feed port of the drying layer through a waveguide, and a microwave suppressor is arranged between the microwave generating cabinet and the drying cabinet.
2.The bottom of the microwave generating cabinet is provided with an air inlet, the top is provided with an air outlet, and the air inlet is connected with the exhaust fan.
3.The microwave generating cabinet includes a plurality of heat source devices such as a high frequency capacitor of a microwave generator (magnetron) and a power supply system, a high voltage silicon stack and a solid state relay.
4.The first and last ends of the transmission belts in the transmission tunnel are laterally staggered so that the material can be dropped from the upper conveyor belt layer by layer to the lower conveyor belt until it is output from the discharge port.
5.There is an infrared temperature probe inside the transmission tunnel, which can reflect the instantaneous temperature of the material when it is heated, and can be directly displayed through the display table.
6.A plurality of microwave turbulence observation doors are provided on the front side of the drying cabinet for real-time monitoring of material drying conditions. The drying cabinet is equipped with an independent dehumidification system to forcibly discharge water vapor generated by microwave heating to prevent condensation of hot contaminants.
Control cabinet
The control cabinet is equipped with PLC control system, touch screen and infrared thermometer linkage automatic control system. A vibrating hopper and a distributor are provided on the inlet of the dry casing to ensure that the material can be continuously squatted and evenly distributed on the conveyor belt in the same width.
Structure sketch 1 of multi-layer tunnel type microwave Chinese medicine pill dryer
Material lifting device 10, vibrating hopper 11, microwave suppressor 4, drying cabinet 2, equipment rack 22
Structure sketch 2 of multi-layer tunnel type microwave Chinese medicine pill dryer
Exhaust hood 21, exhaust vent 31, microwave feed port 34, microwave generator 33, refrigeration unit 35, air inlet 32
Technical parameters of multi-layer tunnel type microwave Chinese medicine pill dryer:
| Daily capacity | 8T-10T | Leakage value | ≤3mw/m³ |
| Total power | 30KW/h | Microwave frequency | 2450/915MHz |
| Heating method | Electric | Cooling method | Cooling method |
| Drying capacity | 300-400kg/h | Working method | Completely continuous |
| Transmission bandwidth | About 600mm |
Drying principle of multi-layer tunnel type microwave Chinese medicine pill dryer:
Microwave drying is a kind of dielectric drying. During the dielectric drying process, heat is generated inside the material. The mass transfer driving force is mainly the vapor pressure gradient generated quickly inside the material. Compared with ordinary drying heated by hot air and steam, the main advantage of microwave drying is high energy efficiency and non-destructive to materials (drying at lower ambient temperature, no high surface temperature is required), other volatile substances lose less and have a uniform effect (can form a more humid field and humidity distribution), dry quickly (drying time can be shortened by more than 50%).
Order multi-layer tunnel microwave dryers and intelligent microwave continuous dryers, you will enjoy the following services:
1.A one-year warranty.The Leader Equipment Company will solve non-artificial fault and technical issues for you free of charge.Only the cost of replacement parts will be charged for the problems caused by human factor
2.24-hour online service system and offline service hotline can introduce equipment for new customers, and also provide technical support for customers who have purchased our equipment
3.As an experienced equipment supplier, our cooperative transportation is also reliable. In addition, our packaging is very safe.
Brazilian customer visit
Our equipment and services are excellent. Many customers at home and abroad choose us. You can bring our raw materials to our company tests equipment until we can help you find the most satisfactory production plan and look forward to your news.
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