Hazardous waste Rotary Kiln incinerator

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Hazardous waste rotary kiln incinerator

Hazardous waste rotary kiln incinerator

Capacity: 200-5000kg/h

Fuel: coal, heavy oil, or natural gas

Application: solid waste, liquid waste, waste gas and comprehensive treatment of three wastes. oil refining sludge, medical waste, industrial waste and etc.

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The rotary kiln incinerator is a widely used incineration equipment in the field of industrial solid waste treatment, especially for the centralized treatment of hazardous waste. It can simultaneously or separately incinerate various types of hazardous waste (including medical waste) such as solid, liquid, semi-solid, colloidal waste, as well as various sludge, salt slag, chemical residues, etc. The rotary kiln incinerator is currently the most technologically mature and large-scale incinerator for hazardous waste treatment in the world.

Application of hazardous waste rotary kiln incinerator

  • Chemical waste residues, kettle residues, activated carbon, catalysts, tar, sludge, etc. generated by biopharmaceutical and petrochemical companies.
  • Industrial hazardous waste disposal centers, hazardous waste incinerators, and incineration plants.
  • General household waste, aviation waste, plastics, and other organic polymer waste.
  • High-concentration organic waste liquids, organic acids, and alkalis, waste solvents; metal resource recovery and utilization.

Best rotary kiln incinerator solution for hazardous waste

We provide complete end-to-end services, from overall project planning to detailed process formulation, process design, equipment design and manufacturing, engineering installation, and commissioning, in order to offer comprehensive solutions for solid (hazardous) waste treatment systems.

Currently, our comprehensive solid (hazardous) waste incineration system mainly utilizes rotary kiln and secondary combustion chamber incineration technology. It adopts advanced and mature processes from both domestic and international sources. Based on the characteristics of the materials provided by the client, we determine the process route and equipment configuration, providing customized full-process services to ensure that pollutant emissions meet current standards.

rotary kiln and secondary combustion chamber incineration

Our rotary kiln incinerator combines advanced incineration technology developed through years of experience with traditional equipment. It has achieved good results in terms of enhanced heat transfer and combustion efficiency. The system is equipped with enhanced heat transfer devices, overcoming the shortcomings of insufficient air and waste contact in traditional rotary kilns, which leads to poor combustion performance. Additionally, the system also has functions to prevent the melting of residues in the furnace and comprehensive cooling and crushing capabilities, making it widely applied in the field of centralized disposal of industrial hazardous waste.

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Technical Features

  1. It is capable of integrated planning for solid, liquid, and gas units, allowing for independent operation.
  2. It employs an automatic mechanical sealed feeding method to reduce human contact with the pollution source.
  3. It utilizes reasonable and efficient exhaust gas purification and dust removal equipment to ensure qualified emission of exhaust gases.
  4. The equipment features a highly automated control system that actively monitors and adjusts various operating parameters in real-time, ensuring system safety and stability.


working principle of hazardous waste Rotary Kiln incinerator

The rotary kiln is equipped with a pusher device at the feeding inlet to ensure continuous feeding. The outlet temperature of the rotary kiln is maintained at 800-850°C. After the flue gas enters the secondary combustion chamber, secondary air is tangentially injected around the chamber, creating a strong vortex field that allows for complete combustion of the combustible components in the flue gas. The secondary combustion chamber is designed with a unique structure that combines cyclone dust removal. The flue gas temperature at the exit of the secondary combustion chamber is greater than 1100°C, and the flue gas remains in the high-temperature zone for at least 2 seconds, ensuring the complete decomposition of harmful components, including dioxins, and meeting the requirements for hazardous waste incineration.

Solid (hazardous) waste is fed into the rotary kiln through a feeding mechanism for high-temperature incineration. After high-temperature incineration, the materials are burned into high-temperature flue gas and ash. The rotational speed of the rotary kiln can be adjusted to maintain a stable slag layer of about 50mm thickness, which acts as protection for the refractory layer. The operating temperature should be controlled at around 850°C. The high-temperature flue gas and ash enter the secondary combustion chamber from the kiln tail, and the incineration ash is sent to the ash discharge machine from the kiln tail and regularly transported to the stabilization/solidification workshop for further treatment.

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