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| KJG Series hollow leaf pulp dryer | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Application: Hollow leaf pulp dryer has been successfully used in food, chemical, petrochemical, dye, industrial sludge and other fields. Equipment, heat transfer, cooling, mixing characteristics enable it to complete the following unit operations: calcination (low temperature), cooling, drying (solvent recovery), heating (melting), reaction and sterilization. Mixing blades at the same time is a heat transfer surface per unit of volume, the effective heat transfer area increases, shortening the processing time. Wedge-shaped blades heat transfer surface but also has self-cleaning function. Compression - Expansion stirring feature allows material mixed evenly. Material along the axis into a "plug flow" movement in the axial range, the material temperature, humidity, mixing a very small degree of gradient. HTF do with the hot medium, the pulp drying machine leaves the work to be completed by low-temperature calcination. Such as: calcium sulfate dihydrate (Ca2SO4 • 2H2O) calcined into calcium sulfate hemihydrate (Ca2SO4 • 1/2H2O). Sodium bicarbonate (NaHCO3) into sodium carbonate by calcination (Na2CO3) and so on. Pass into the cooling medium, such as water, cooling, etc. can be used to cool brine. Such as: pulp used in the soda ash industry, leaf-type cooler base machine, to replace the old air-cooled cooler base machine, saving energy and exhaust gas processing equipment, reducing operating costs. Drying, equipment, the most important features, do not use hot air, so that solvent recovery, energy consumption, environmental control is easy to deal with the ideal state. On the need to recover solvents, flammable, heat-sensitive materials, especially to adapt easily oxidized. Has been widely used in fine chemical, petrochemical, dye industry. Axial range, temperature, humidity, mixing degree of uniformity makes the device can be used to heating or melting, or some solid material response. Fertilizer and modified starch in the industry have been successfully used. Leaf pulp dryer can be used for sterilization of food and flour processing. Unit effective volume of the heat inside the large area, will soon be material heated to sterilization temperature, to avoid prolonged heating to change the quality of materials. Product Overview: The product can paste, granular, powder, slurry materials, indirect heating or cooling, to complete drying, cooling, heating, sterilization, response, and low-temperature calcination and other unit operations. Wedge-shaped mixing device specific heat blades with a high heat transfer efficiency and heat transfer surface self-cleaning function. Hollow shaft lined with dense wedge-shaped hollow blades, hot medium through the hollow axial flow through the blades. Units of the effective heat transfer area inside the large volume of hot medium temperature from -40 ℃ to 320 ℃, it could be water vapor, it can be a liquid-type: such as hot water, heat conduction oil and so on. Indirect conduction heating, no air to carry away heat, heat are used for heating material. Body heat loss is only through the device to the environment of the heat insulation layer. Wedge-shaped blades with self-cleaning function of heat transfer surfaces. Material particles and produce the relative movement of wedge-shaped face scrub role, be able to wash off the surface of attachments wedge-shaped material, so that in operation has maintained a clean heat transfer surfaces. Leaf pulp drying machine for the Ω-type shell, the shell of the general arrangements for 2-4 hollow stirring shaft. Shell sealed cover with the cover to prevent dust leakage and collection of materials, materials solvent vapor. Discharging the mouth to set a pull block to ensure a high degree of material level, so that heat transfer surface was covered with material fully play its role. Heat transfer medium through the rotary joint, flows through the shell jacket and hollow stirring shaft, hollow stirring shaft based on the type of heat medium has a different internal structure to ensure optimal heat transfer effect. Features: 1.Vacuum drier low power consumption: Due to indirect heating, no air to carry away a large number of calories, then set the dryer outer insulation layer on the slurry material, only 1.2kg of water evaporate 1kg of water vapor. 2.Vacuum drier system costs low: unit effective volume, has a huge heat transfer surface, to shorten the processing time, equipment size becomes smaller. Would greatly reduce the building area and building space. 3.Dealing with a wide range of materials: the use of different heat medium, able to deal with heat-sensitive materials, but also heat-treated materials need to be treated. Commonly used media are: water, steam, heat-conducting oil, hot water, cooling water. Continuous operation can also be intermittent operation can be applied in many fields. 4. Less pollution: no use of portable air, dust entrainment little material. Material solvent evaporation is very small, easy to handle. To have contaminated materials or be recycled solvent conditions, Ke Caiyong closed loop. 5.The operation cost is low: the device to normal operation, only 1 hour / day • people. Low-speed mixing and reasonable structure. A small amount of wear and tear, maintenance costs low. 6.The operation stability: As the wedge-shaped blades of special compression - expansion of the role of stirring, so that sufficient material particle surface contact and heat transfer in the axial range, the material temperature, humidity, mixing degree of the gradient is very small, thus ensuring the process stability.
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