QJ series hollow blade dryer

Bring this product to paste, granular, powder, paste material indirect heating or cooling. Can complete drying, cooling, heating, sterilization, such as reaction, low temperature combustion unit operation. Equipment special wedge blade mixing heat transfer, heat transfer surface has high heat transfer efficiency and self-cleaning function.
Bring on the hollow shaft with densely packed hollow wedge blade. Hollow shaft heat medium flows through the blades. The heat transfer area in unit volume is very big, the heat medium temperature from 40. C to 320. C, can is water vapor. Liquid type: such as hot water, heat conduction oil, etc. An indirect heat, no air to carry away heat, heat used to heat the content section. Heat loss is only through the insulation layer to the environment of the heat. Wedge blade heat transfer surface has the clean function. Material particles interact with the relative movement of wedge face wash, to be able to wash off the wedge surface adhesion material. Keep running in the heat transfer surface clean. For Q type of paddle dryer shell, shell in general arrangement from two to four hollow stirring shaft. Shell has a sealing cover and cover to prevent dust material leaked out and give full play to the role. Heat transfer medium by rotary joints. Through the hollow shell jacket and stirring shaft, hollow stirring shaft based on the type of heat medium and with different internal structure, to ensure the best heat transfer effect.
 

Ccharacteristics
1, low energy consumption of the blade dryer due to indirect heating, not a lot to carry away heat, air dryer outer wall and set the thermal insulation layer. Evaporation of slurry material. 1 kg of water only 1.2 kg of water vapor.
2, low cost per unit of the blade dryer is effective volume has a large heat transfer surface, so the processing time is shortened, the size of the equipment becomes small. Will greatly reduce the building area and building space.
3, wide range of processing materials: using different medium heat. Can handle heat-sensitive materials. But also need high temperature processing of materials. The normal media are: steam, thermal oil, hot water, cooling water, etc. Can also can be intermittent operation, continuous operation can be applied in many fields.
4, small pollution of the environment: do not use the air to carry, powder materials with very little. The solvent evaporation capacity is small, easy to handle. For material or with pollution to the solvent recovery, can adopt closed cycle.
5, low operation cost: the equipment is normal operation. Only 1 hour/day. Low-speed mixing and reasonable structure. Wear is small. Maintenance cost is very low.
6, stable operation, because of the wedge blade special compression a stirring effect, make particles make contact with the heat transfer surface, in axial interval, the material temperature, humidity, mixed degree of gradient is small, so as to ensure the stability of the process.
 

Application
Bring the blade dryer has been successfully used in food, chemical, petrochemical, dye, industrial sludge, etc. Heat transfer and cooling equipment, mixing characteristics make it can complete the following unit operations: combustion (low temperature), cooling, drying, solvent recovery, heating (melting), reaction and sterilization. Mixing blade, at the same time, the heat transfer surface, and make the heat transfer area in unit volume increases, shorten the processing time. Wedge blade heat transfer surface has self-cleaning function again. Compression - expansion mixture of material mixing function. Material along the axial as "piston flow" movement, in axial interval, the material temperature, humidity, mixed degree of gradient is small. Make heat medium with heat conduction oil, the blade dryer can work completed low temperature combustion. Such as: of dihydrate calcium sulphate (Ca2SO4 · H2O) burn into half water calcium sulfate (Ca2SO4 1/2 H2O) sodium bicarbonate (NaHCO3) transformed into the soda ash Na2CO3 (), etc. To the cooling medium, such as water, salt water cooling, etc. Can be used for cooling. Such as: use on the blade type cold alkali soda ash industry machine, replace the old air cooling cool soda machine, saving energy and exhaust gas treatment equipment, reduce the operation cost. Dry, equipment, the main function, do not use hot air, the solvent recovery, energy consumption, environment control in a manageable ideal state. The solvent to be recovered, flammable easy oxidation is especially adapted to thermal sensitive material. Has been widely used in fine chemical industry, petrochemical industry, dye. Axial interval, temperature, humidity, mixed degree of uniformity, make the equipment can be used for heating or melting, or do some solid materials. Has been successfully used in compound fertilizer and modified powder industry. The blade dryer can be used to the food sterilization processing and flour. Large heating area, in unit volume and heat will soon be material to the sterilization temperature, to avoid the heat for a long time to change the material quality.
 

Structure diagram

Technical parameters