Waste incineration rotary kilnProduct introduction: Rotary incineration kiln is widely used incineration equipment in the field of industrial waste treatment, and has a relatively high market share in the field of industrial waste incineration. As a specific field of incineration of hazardous waste, rotary incinerators can deal with complex industrial waste, medical treatment, etc. Garbage has many advantages such as wide adaptability, stable and reliable operation, convenient management and operation, and simple equipment maintenance, so it is widely used in the field of hazardous waste incineration. Incineration is a relatively reliable and effective means to realize the harmlessness, reduction and recycling of garbage.
Capacity: 30-150t/d
Scope of application: industrial waste, medical waste, construction waste, etc.

Outstanding advantages of Waste incineration rotary kiln
1. Low cost: high-temperature materials contact refractory materials. It is convenient to replace the furnace lining.

2. The transmission mechanism is simple: the transmission mechanism is in the kiln shell, and the maintenance of the equipment is simple.

3. To ensure that harmful gases do not leak out: good sealing measures and furnace negative pressure.

4. Convenient operation and maintenance: the equipment has a high operating rate. The annual operating rate can generally reach 90%.

5. Strong adaptability to incineration: solid waste, liquid, colloid, and gas can be incinerated at the same time.

6. The heat utilization rate is high: the incineration material is tumbling forward. Three heat transfer methods coexist in one furnace.

7. Combined with new technology: the traditional secondary combustion chamber has been transformed into a secondary combustion furnace. The burnout rate of ash and slag has been improved, and the incineration efficiency of the rotary kiln has been improved. At the same time, it has comprehensive functions such as normal temperature slag discharge, slag material crushing, airtight air lock, etc. .

working principle of Waste incineration rotary kiln
Waste incineration rotary kiln processes solid waste. The waste completes the process of water evaporation, volatilization analysis, ignition and combustion in the rotary kiln. The ash and slag are discharged from the bottom of the secondary combustion chamber. The indoor is mixed with the secondary combustion air to achieve flue gas recovery and combustion, and to achieve safe and up-to-standard emission of tail gas.
The three incineration methods of rotary kiln incineration are ash-type incineration; slag-type incineration; pyrolysis-type incineration. the

1. Rotary kiln ash and slag incineration

The ash-type incinerator, the temperature of the rotary kiln is controlled at 800-900 degrees, and the hazardous waste is destroyed through oxidation and melting. The main discharge of the rotary kiln is ash, and the ash is loose after cooling. High, the high temperature corrosion and oxidation of hazardous waste to the refractories of the rotary kiln are not strong. Therefore, the service life of the refractories is relatively long, and the "wall hanging" phenomenon of the inner furnace body is not serious.

2. Rotary kiln slag incineration

The slag-type rotary kiln incinerator is mainly used to process some single and highly toxic hazardous wastes. The temperature is generally above 1500 degrees, and the purpose is to increase the destruction rate. Due to the different processing objects and complex components, the melting point of some hazardous wastes is above 1300-1400 degrees, so it is difficult to control the temperature of this type of incinerator and has high requirements for operation. Due to the high furnace temperature of the slag-type rotary kiln incinerator, the auxiliary fuel consumption increases, and the direct consequence is that the rotary kiln refractory material, thermal insulation material fuel consumption, mechanical loss and operation difficulty are all high.

3. Rotary kiln pyrolytic incineration

The temperature in the pyrolytic rotary kiln incineration kiln is controlled at 700-800 degrees. Since the hazardous waste is pyrolyzed and gasified in the rotary kiln, the combustible gas produced by the pyrolysis and gasification enters the secondary combustion chamber for combustion, which can greatly reduce the fuel consumption. In addition, due to the low temperature, the thermal The loss is less, the amount of flue gas is low in the three treatment processes, the installed capacity is reduced, and the operating cost is greatly reduced, but its disadvantage is that the residual amount of ash is high, and the incineration of ash is not complete. At present, some key technologies have made breakthroughs. This incineration method represents the development direction of the rotary kiln incineration of hazardous waste technology, especially for a resource-saving society, which is particularly important.