Horrow paddle drying solution for sludge

 1. How to dry industry Sludge?

Hollow paddle  hollow blade dryer

2. what is the priciple of hollow paddle dryer?

Series of hollow paddle is densely arranged on the hollow shaft, and the heat medium flows into the paddle through the hollow shaft. The heat transfer area in the effective volume of the unit is large, and the heat medium may be water vapor or hot water or heat transfer oil. The heat transfer medium passes through the rotary joint and flows through the casing jacket and the hollow agitating shaft. The hollow agitating shaft has different internal structures according to the type of the heat medium to ensure an optimal heat transfer effect.

    When the paddle and the jacket pass through the heat medium and are heated, the upper part of the discharge port is simultaneously dried by the heated dry air, which greatly increases the drying strength of the device. The evaporated water is taken out of the dryer by the exhaust gas, and the humid air is discharged to the outside by sucking fan.

 3. what it the Features of hollow paddle dryer?

• Adopts combination heating way of jacket and inside mixing, its heating conducting area is large, thermal efficiency is high.

 Being installed stirrer in the machine, it makes raw material in cylinder, so the uniformity to be heated of raw materials is raised greatly.

• Being installed stirrer in the machine, pulpiness, paste-like mixture or power raw materials can be dried easily.

4.what is the other Application of Hollow paddle?

• The materials from such as the medicine _t food , chemical industry, etc. can be dried.

• Suitable for pulpiness, paste-like mixture or power raw material.

• Temperature sensing material requiring the low temperature to be dried.

• Raw materials that are easy to oxidize or explode and have strong irritative or toxic.

• Demand to retrieve of the organic solvent.

Technicals

First, the design conditions
No. Item Parameter
1 Material Name Domestic Sludge
2 solvent water
3 initial water 80%
4 final moisture 40%
5 Production 417kg/H
6 Water evaporation 833kg/H
7 Processing capacity 1250kg/H
   8 material pile weight --

Second, the process design
Serial number item content
1 drying system form open system
2 drying medium heat transfer oil
3 drying method Conductive drying
4 raw material supply method
5 operating temperature steam temperature
6 heat source
7 Receipt method Host discharge
8 Dust removal method
9 Control requirements Button control

Third, the determination of design parameters
No. Item Parameter
1 initial moisture of the material ω1=80%
2 material final moisture 40%
3 Ambient temperature t0=15°C
4 Production 417kg/H
5 Water evaporation 833kg/H
6 Product leaving the drying chamber temperature θ2=40°C
7 Ambient air moisture d=0.01kg water/kg dry air
8 Specific heat of dry products Cs=0.4kcal/kg.°C
9 heat transfer area 81m2
10 effective volume 6.43m3
11 Equipment size Length * Width * Height: 9.7 m * 2.2 m * 2.6 m
12 speed 1-5rpm