Waste heat drying sludge equipment

The sludge enters the waste heat drying sludge equipment, and the waste heat of the exhaust gas is used as the drying heat source. The high-humidity, high-viscosity, mass-shaped sludge is strongly stirred, broken, directly penetrated, and quickly broken into loose shapes, thereby increasing The contact area between the sludge and the hot air speeds up the drying speed and transforms the sludge into a loose type that is easy to dry, effectively avoiding the granular sludge from agglomerating again. The wet mud is in direct contact with the hot air of the drying medium, and the hot air transfers heat to the wet mud. Because the water vapor pressure on the surface of the wet mud is lower than the water vapor pressure in the hot air, the moisture on the surface of the wet mud is vaporized, and the water evaporates from the surface of the sludge. The vaporized moisture is taken away. After the sludge reaches the drying requirements, it will be automatically discharged and directly bagged for transportation or other treatments.

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1. Process introduction

2. Process flow chart

3. Features

1. The front end of the equipment is equipped with a scraper and a fixed cylinder extending into the spiral guide plate. The cylinder is welded on the front end of the equipment as a fixed cylinder, and the scraper is welded on the drum to form a movable knife. The extension of the spiral copy board will send away most of the material, the scraper scrapes off the material adhering to the gap between the copy board and the fixed cylinder, and then is sent away by the spiral copy board, so that the entire feeding process is unimpeded;
2. Spiral guide plate at the end of the drum;
3. The drum is placed obliquely, so that the discharge is clean and there is no dead corner.

Waste heat drying sludge equipment

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Waste heat drying sludge equipment

The sludge enters the waste heat drying sludge equipment, in which steam is used as the heat source to dry the sludge. The hollow shaft inside the equipment is densely arranged with wedge-shaped hollow blades, and the steam flows through the blades through the hollow shaft. The heat transfer area in the effective volume is large. The steam passes through the rotary joint and flows through the shell jacket and the hollow stirring shaft. The hollow stirring shaft has different internal structures according to the type of heat medium to ensure the best heat transfer effect. While the paddle and jacket are heated by steam, the upper part of the discharge port is simultaneously dehumidified, which greatly increases the drying strength of the equipment.

Waste heat drying sludge equipment

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