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Waste Incineration rotary kiln

The waste incineration rotary kiln is a widely used equipment in international industrial waste disposal field and occupies higher market share. In addition, it is a recommended waste incinerator by National Ministry of Science and Technology and State Environmental Protection Administration.

Process description

The waste incineration rotary kiln generated ashes can be discharged from the bottom of the secondary combustion chamber while the generated smoke will be into the secondary combustion chamber for complete combustion by means of mixing with the air, thus ensuring the exhaust gas completely reach the discharge standard. The rotary kiln incinerator can be used to simultaneously dispose solid wastes and liquid wastes. To illustrate, the solid wastes can be fed into the kiln by exclusive conveyor and the liquid wastes can be injected into the kiln from the feed end by effective atomizing unit. The wastes will experience a series of processes in the rotary kiln, including water evaporation, volatile devolatilization, ignition and combustion. This waste disposal equipment is characterized by wide suitability, easy operation and maintenance as well as long service life.


Specification parameters of sludge incinerator
Specification Prod. capacity Rotation speed Main motor
m t/d r/min kw
Φ2.5*13 100 0.063 (adjustable) 15-222
Φ2.9*13 150 0.063 (adjustable) 22-37
Φ3.4*17.5 20 0.063 (adjustable) 22-37
Φ3.7*21 350 0.063 (adjustable) 37-45
Specifications of hazardous waste incinerator:
Specification Prod. capacity Rotation speed Main motor
m t/d r/min kw
Φ2.6*9 15 0.063 (adjustable) 1
Φ3*13 30 0.063 (adjustable) 22
Φ3.3*12 50 0.063 (adjustable) 22
Φ3.6*11 70 0.063 (adjustable) 37
Φ3.8*16 100 0.063 (adjustable) 37
Φ4.3*16 100-120 0.063 (adjustable) 45


1. The rotary kiln boasts simple driving way, and all drive mechanisms are designed on the shell so that safe operation and easy maintenance are ensured.
2. This waste incineration rotary kiln can be used to incinerate solid wastes, liquid and gas at the same time. Thus, it has strong adaptability.
3. During combustion, the wastes roll forward. Three heat transferring methods are available in the incinerating furnace. Therefore, efficiency of heat utilization is greatly high.
4. Refractory materials contribute to long service life. And it is convenient to replace liner plates, thus ensuring low cost.
5. Long burning time and 700℃ high temperature can make hazardous wastes be completely thermal decomposed and partial wastes with low ignition point almost burnt out.
6. The shape and moisture content of the incinerated wastes are less required.
7. The waste incineration rotary kiln is characterized by perfect seal method combustion chamber draft so that leakage of harmful gas can be prevented.
8. Strong air mixing in the secondary combustion furnace can make imperfectly combusted materials in the flue gas be completely combusted and reach 1150℃which is needed to decompose harmful ingredients. The flue gas will dwell in the high temperature zone for 2 seconds, which can not only perfectly incinerate the wastes but also effectively decompose dioxin from the source.
9. Due to equipment maturity and reliability as well as abundant manufacturing experience of LCDRI, our waste incineration rotary kiln can achieve complete localization.
10. Annual operation rate of the industrial waste incinerator can be up to over 90%.
11. Heat transfer strengthening and slag-bonding preventing device is equipped in this rotary kiln to increase incineration rate and adaptability to different wastes.
12. The secondary combustion chamber is changed into secondary combustion furnace. Thus, burn-off rate of ashes and incineration efficiency are improved. In addition, such functions as normal temperature deslagging, slag crushing and air blocking can be ensured.


Luoyang Building materials & Architectural Design and Research Institute (LCDRI) Waste Incineration rotary kiln
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