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Sludge Rotary Kiln

Sludge Rotary Kiln

Specifications:

Sludge is a kind of matter which is produced in the process of sewage disposal. It is a kind of complicated anisotropic body composed of organic pieces, bacteria, inorganic particles and rubber matrix. Sludge rotary kiln can make sludge into useful energy. 

Application Range:widely applied to chemical, building, mining and metallurgy industry;

Applicable Materials:Industrial garage waste, sludge, waste, medicine waste, coal ash, ore slag, oily sludge, PVC material and etc.

Advantages

1. Advanced technology and superior combustion method
The inner temperature of sludge rotary kiln is controlled at 700 to 800 degree centigrade. Because dangerous wastes will produce combustible gas after pyrolysis and gasification, the oil consumption amount can be greatly reduced.
2. Lower running cost and less thermal loss
Owing to the lower temperature in the running process of rotary kiln, there is less thermal loss. Owing to less flue gas contained in this system, installed capacity is accordingly reduced, which is beneficial to reduce running cost and investment.
3. Good adaptability and easy operation
Sludge rotary kiln can adapt to various sludge. The temperature of sludge rotary kiln is easy to control. Stable combustion can be realized. Sludge and fuel gas will move oppositely, which can make full use of waste gas and improve running efficiency.

 

Working Principle

rotary kiln working principle

Before sending sludge into rotary kiln, preheat the furnace with oil gas or fuel oil. Then, input dehydrated sludge cakes. Sludge will enter the rotary kiln from the high end and will be discharged from the lower end. Fuel oil will be injected through lower part. Therefore, the lower part holds the highest temperature and the higher end holds lower temperature. With the rotation of rotary kiln body, sludge will flow to lower part from higher end gradually. In the drying zone, sludge will be preheated first. After the moisture content of sludge reaching to 10% to 30%, the temperature of sludge and wet bulb of hot air will be about 160 degree centigrade. With constant speed of evaporation, the proper ignition point will be reached. In the combustion zone, distilled sludge will be fired. When the size of sludge particles is about 3 to 10 mm, combustion process is controlled by internal divergence. Therefore, the higher the relative speed of gas and particles is, the thinner the dust layer is and the faster the combustion speed is. The temperature in combustion zone can reach to 700 to 900 degree centigrade.

 

Latest Delivery

Project Case

Technical Parameters

 
Specifications (m)
Dimension Power (kw) Total weight (t) Notes
Diameter (m) Length (m) Inclination (%) Output (t/h) Rotary speed (r/min)
Φ2.5×40 2.5 40 3.5 180 0.44-2.44 55 149.61 With vertical preheater
Φ2.5×50 2.5 50 3 200 0.62-1.86 55 187.37 ----
Φ2.5×54 2.5 54 3.5 204 0.48-1.45 55 196.29 ----
Φ2.7×42 2.7 42 3.5 320 0.10-1.52 55 198.5 ----
Φ2.8×44 2.8 44 3.5 400 0.437-2.18 55 201.58 Decomposition outside the kiln
Φ3.0×45 3 45 3.5 500 0.5-2.47 75 210.94 ---- 
Φ3.0×48 3 48 3.5 700 0.6-3.48 100 237 Decomposition outside the kiln
Φ3.0×60 3 60 3.5 300 0.3-2 100 310 Bauxite calcining kiln
Φ3.2×50 3.2 50 4 1000 0.6-3 125 278 Decomposition outside the kiln
Φ3.3×52 3.3 52 3.5 1300 0.266-2.66 125 283 preheat decomposition
Φ3.5×54 3.5 54 3.5 1500 0.55-3.4 220 363 preheat decomposition
Φ3.6×70 3.6 70 3.5 1800 0.25-1.25 125 419 Residual heat power
Φ4.0×56 4 56 4 2300 0.41-4.07 315 456 preheat decomposition
Φ4.0×60 4 60 3.5 2500 0.396-3.96 315 510 preheat decomposition
Φ4.2×60 4.2 60 4 2750 0.4-3.98 375 633 preheat decomposition
Φ4.3×60 4.3 60 3.5 3200 0.396-3.96 375 583 preheat decomposition
Φ4.5×66 4.5 66 3.5 4000 0.41-4.1 560 710.4 preheat decomposition
Φ4.7×74 4.7 74 4 4500 0.35-4 630 849 preheat decomposition
Φ4.8×74 4.8 74 4 5000 0.396-3.96 630 899 preheat decomposition
Φ5.0×74 5 74 4 6000 0.35-4 710 944 preheat decomposition
Φ5.6×87 5.6 87 4 8000 Max4.23 800 1265 preheat decomposition
Φ6.0×95 6 95 4 10000 Max5 950×2 1659 preheat decomposition

Core Equipment

Applicable Materials

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