With the rapid development of national economy, the hazardous waste is increasing, especially in industry and medical industry. Many have toxic, explosive, easy corrosion and other characteristics, not only affect the environment, but directly endanger the health of humans and animals.Due to the growing situation, it also catches the government high attention to research of hazardous waste treatment technology. The study found that incineration is the best way to reduce pollution, harmless and recycling from many methods. Generally there are two ways, one is the burning device, the second is using cement rotary kiln. comparatively speaking, the second is more convenient, and can effectively control the secondary pollution, and low cost. Now here we will introduce you some adcantages about cement kiln.



1. High burning temperature

Hazardous waste is mainly composed of hydrocarbon waste, hydrocarbon waste incineration temperature to 900-1100 ℃, other difficult to deal with waste is 1200-1400 ℃. Average temperature of the incinerator is only 850-850 ℃, materials sintering temperature can guarantee the cement rotary kiln stove at 1450 ℃, the gas temperature can reach 1750 ℃, basically the harmful ingredients of organic matter in waste burning rate can reach more than 99.99999%, basic implementation complete decomposition.

2. The burning of the space is large

People know that the volume of cement rotary kiln is very big, the specifications of the cement rotary kiln is generally 4.3 x 66 m cylinder, burning of space is very big, material under high temperature in a furnace, residence time is greater than 30 minutes, gas in the retention period of higher than 1300 ℃ temperature is greater than 4s, can ensure hazardous waste sufficient stability to burn.

cement rotary kiln

3. Environmental damage is small

Cement rotary kiln system running under a state of full negative pressure, and has a professional waste gas processing system, flue gas and dust will not overflow, fundamentally prevent the poisonous and harmful gases and pollute the environment. The burning of waste residue will directly mixed with cement clinker, realize recycling. Rotary kiln characteristic of sulfur absorption device make the sulfur dioxide emissions fully up to standard.

4. High production capactity

The size of the cement rotary kiln, high rates of operation, the failure rate is small, so the production is high. With the development of the calcination technology, the daily output of cement rotary kiln is still in gradually improve, the future will be able to work more large-scale hazardous waste incineration.