White mud 280 square hollow blade dryer

Release date: July 10, 2020

White mud dryer, white mud dryer, white mud hollow blade dryer, white mud blade dryer. Changzhou Xinke Drying Equipment Co., Ltd. www.xkdry.com

1、 White mud calculation parameters:

1. Dry material name: "White Mud"

2. Initial moisture content of added sludge: 65% (wet basis)

3. Final moisture content of discharged sludge: 25% (wet basis)

4. Wet product processing capacity: 3637kg/hour

5. Heat source: Steam

6. Production mode: continuous

7. Exhaust gas treatment: cyclone+scrubbing tower

2、 Theoretical process calculation:

1. Wet product processing capacity at 65% per hour:

G humidity=3637kg/h

2. Water evaporation rate per hour:

W water=3637 × (65-25) ÷ (100-25)=1940kg/h

3. 25% dry product output per hour:

G dry=1697kg/h

4. The necessary heat for evaporating water is 595 kcal/kg

Q1=1154300kcal/h

5. The necessary heat for material heating, with a specific heat of 0.4 kcal/kg ·℃

Q2=54304kcal/h

6. The heat required to heat up water, with a specific heat of 1.0 kcal/kg ·℃ for water

3、 Overview:

The series sludge blade dryer consists of two interlocked blade shafts, a W-shaped shell with a jacket, a machine base, and a transmission part. The entire drying process of sludge is carried out in a closed state, and organic volatile gases and odorous gases are sent to the exhaust gas treatment device in a sealed atmosphere to avoid environmental pollution.

The dryer uses steam, hot water, or thermal oil as the heating medium, and the shaft end is equipped with a rotating joint for introducing and exporting the heat medium. The heating medium is divided into two paths, which enter the jacket of the dryer body and the inner cavity of the blade shaft, respectively. The body and blade shaft are heated simultaneously, and the sludge is heated and dried by conduction heating. The dried sludge is quantitatively and continuously fed into the feeding port of the dryer by the screw feeder. The sludge enters behind the dryer and is flipped and stirred by the rotation of the blades, constantly updating the heating interface. It comes into contact with the body and blades and is fully heated, causing the surface moisture contained in the sludge to evaporate. At the same time, the sludge is transported in a spiral trajectory towards the discharge port by the rotation of the blade shaft, and continues to stir during transportation to evaporate the water seeping out of the sludge. Finally, the uniformly dried qualified products are discharged from the discharge outlet.

4： Equipment features:

1The equipment has a compact structure and occupies a small area. According to the device structure, the heat required for drying is mainly fromThe hollow blade wall arranged on the hollow shaft provides heat transfer, while the jacket wall only accounts for a small portion. place

The large heat transfer area per unit volume of equipment can save equipment footprint and reduce infrastructure investment;

2. High heat utilization efficiency. The sludge dryer adopts conduction heating method for heating, and all heat transfer surfaces are covered with material Material coverage reduces heat loss; No air takes away heat, and the heat utilization rate can reachMore than 80%;

3. Wedge shaped blades have self-cleaning ability and can improve blade conduction. The inclined surface of the rotating blade and particles orThe dispersing force generated by the joint movement of the powder layer automatically clears the sludge adhering to the heating slopeIn addition, the blades maintain efficient heat transfer function.