In industrial solid and hazardous waste disposal, traditional incineration equipment faces incomplete pollutant decomposition, high energy consumption, and high secondary pollution risks. Our specialized rotary kilns (including core hazardous waste rotary kiln technology) are designed for this purpose, focusing on "high-temperature harmlessness + intelligent precise temperature control + resource recycling" to efficiently destroy organic pollutants, solidify heavy metals, and recover heat, serving as key equipment in environmental disposal.
1. Core Technologies: Ensuring Efficient Disposal & Environmental Compliance
The equipment adopts three core technologies to overcome traditional bottlenecks, achieving harmless disposal, low energy consumption, and minimal pollution:
High-Temperature Stratified Temperature Control: Three kiln sections with precise temperature control: drying/preheating (300-600°C), pyrolysis/gasification (800-1000°C), high-temperature oxidation (1200-1400°C). Organic hazardous waste stays ≥2 seconds in the oxidation section (dioxin removal ≥99.9%), while heavy metals melt and solidify. Kiln lining (high-alumina refractory bricks + silicon carbide coating) resists ≥1500°C and acid corrosion, extending service life to 3-5 years.
Heat Recovery & Resource Recycling: High-temperature flue gas (1000-1200°C) is used to preheat waste (reducing main kiln energy consumption) and drive a waste heat boiler for steam/electricity, saving over 35% energy. Non-heavy metal solid waste residues can be recycled as building material aggregates after compliance testing.
Intelligent Leakage Prevention & Flue Gas Purification: Double-seal gate valve + nitrogen protection (feed inlet) and flexible gaskets prevent harmful gas leakage. Post-purification system (deacidification + activated carbon adsorption + bag filter + SNCR) ensures emissions meet national standards (particulate matter ≤20mg/m³, NOₓ ≤200mg/m³).
2. Application Scenarios: Covering All Waste Disposal Needs
Customized solutions for different waste types, adapting to industrial, chemical, and pharmaceutical sectors:
Solid Waste Disposal: Treats general industrial waste (cement kiln dust, waste rubber/plastic) via pyrolysis; inert residues are recycled as building materials. Customizable capacity: 5-50 tons/day.
Hazardous Waste Disposal (Core Application): Organic hazardous waste (pharmaceutical residues, solvent waste, waste circuit boards) is decomposed at high temperatures; inorganic hazardous waste (electroplating sludge, smelting waste) has heavy metals solidified into stable vitreous structures for safe disposal.
Project Adaptation: New disposal centers (5-100 tons/day, full-process equipment); traditional incinerator upgrades (replacing core kiln + adding preheater/purification system) increase efficiency by 40% and ensure compliance.
3. Operational Logic: Pretreatment - Disposal - Post-Processing
Five-stage intelligent monitored process for safe, compliant operation:
Waste Pretreatment: Waste is tested, sorted, crushed to ≤50mm, and dehydrated (moisture ≤30%) before sealed conveying to silos.
Preheating & Feeding: Waste is preheated to 500-600°C via vertical preheater (countercurrent heat exchange with flue gas) before entering the main kiln.
In-Kiln Disposal: Tilted (3%-5%) kiln (0.2-1.5 rpm adjustable) with staged temperature control; burners adjust fuel supply based on waste calorific value to maintain stable temperatures.
Post-Treatment: Flue gas undergoes deep purification and online monitoring before discharge; waste residues are cooled to ≤100°C, recycled (inert) or stabilized (heavy metal-containing) for safe landfill.
Our specialized rotary kiln solves industrial waste disposal challenges and creates value via heat and residue recycling. For specific waste process parameters, ROI, or project references, contact us for tailored solutions.
