New type of oil sludge blade dryer

NegotiableUpdate on 05/13

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Nature of the Manufacturer: Producers

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Overview

The new oil sludge paddle dryer has been successfully used in fields such as food, chemical, petrochemical, dye, industrial sludge, etc. The characteristics of heat transfer, cooling, and stirring of the equipment enable it to perform the following unit operations

Product Details

New type of oil sludge blade dryerIt has been successfully used in fields such as food, chemical, petrochemical, dye, industrial sludge, etc. The characteristics of heat transfer, cooling, and stirring of the equipment enable it to perform the following unit operations: combustion (low temperature), cooling, drying (solvent recovery), heating, reaction, and sterilization. The mixing blade is also a heat transfer surface, which increases the heat transfer area per unit effective volume and shortens the processing time. The wedge-shaped blade heat transfer surface also has self-cleaning function. The compression expansion mixing function ensures uniform mixing of materials.

Working principle explanation of oil sludge blade dryer:

Wedge shaped hollow blades are densely arranged on the hollow shaft, and the heat medium flows through the blades through the hollow shaft. The heat transfer area within a unit effective volume is large, and the temperature of the heat medium ranges from -40 ℃ to 320 ℃. It can be steam or liquid, such as hot water, thermal oil, etc. Indirect conduction heating does not carry away heat with air, and the heat is used to heat the material. The heat loss is only the heat dissipation to the environment through the insulation layer of the device body. The wedge-shaped blade heat transfer surface has self-cleaning function. The relative motion between the material particles and the wedge-shaped surface produces a scrubbing effect, which can wash away the attached material on the wedge-shaped surface and maintain a clean heat transfer surface during operation. The shell of the blade dryer is Ω - shaped, and generally two to four hollow mixing shafts are arranged inside the shell. The shell has sealed end caps and upper caps to prevent material dust leakage and fully exert its function.

New type of oil sludge blade dryerWedge shaped blades have self-cleaning ability, which can improve the heat transfer effect of the blades. The dispersing force generated by the combined motion of the inclined surface of the rotating blade and the particle or powder layer makes it easy for the material attached to the heating slope to be automatically removed, thus maintaining the efficient heat transfer function of the blade. In addition, due to the reverse rotation of the two shaft blades, the material on the inclined surface is alternately compressed in sections (when the two shaft blade slopes are close to each other) and expanded (when the two shaft blade surfaces are far apart), causing the material near the heat transfer surface to be vigorously stirred and improving the heat transfer effect.

The sludge paddle dryer has the following advantages:

1. The energy consumption of the blade dryer is low: due to indirect heating, it does not carry a large amount of air to take away heat. The outer wall of the dryer is also equipped with an insulation layer. For slurry materials, only 1.2kg of steam is needed to evaporate 1kg of water.

2. The oil mud blade dryer system has low cost: it has a huge heat transfer surface per unit effective volume, which shortens processing time and reduces equipment size. This greatly reduces the building area and space.

3. Wide range of material processing: using different heat media, it can handle both thermosensitive materials and materials that require high-temperature treatment. Common media include steam, thermal oil, hot water, cooling water, etc.

4. Low environmental pollution: No use of portable air, minimal dust and material entrainment. The solvent evaporation of the material is very small, making it easy to handle. For materials that are contaminated or require solvent recovery, closed-loop circulation can be used.

5. Low operating costs: The structure. The wear and tear is small, and the maintenance cost is very low.

6. Stable operation: Due to the special compression expansion stirring effect of the wedge-shaped blade, the material particles are fully in contact with the heat transfer surface. In the axial range, the temperature, humidity, and mixing gradient of the material are very small, thereby ensuring the stability of the process.