The kitchen waste treatment and drying equipment is a specialized processing equipment designed for catering, canteens, agricultural markets, and kitchen waste treatment centers, aiming to achieve resource recovery, harmlessness, and reduction. It adopts the core process of high-temperature and high-pressure treatment + vacuum drying, paired with automatic sorting, crushing, extrusion dewatering, and oil and fat separation front-end pretreatment systems. The entire process operates in a closed and automated manner, capable of thoroughly sterilizing, dewatering, and degreasing kitchen waste, ultimately converting it into industrial-grade oil and fat as well as organic fertilizer/feed raw materials. This achieves a closed-loop treatment of kitchen waste that is "zero pollution, full utilization, and high yield." It is the preferred solution for large-scale centralized disposal and high-standard environmental protection management.

Main Purpose      
1. The whole-process harmless treatment of kitchen waste involves sorting, crushing, dehydration, deoiling, chemical treatment and sterilization, and drying of mixed kitchen waste such as leftovers, fruit and vegetable residues, meat scraps, waste oil, and swill. This integrated treatment thoroughly eliminates harmful organisms such as bacteria, viruses, mold, and insect eggs, meeting hygiene and epidemic prevention requirements as well as environmental protection and emission standards.  
2. Solid-liquid-oil three-phase separation and resource recovery automatically separate non-degradable impurities, remove free water, and recover high-purity waste oil, achieving impurity reduction, sewage purification, and oil resource utilization.  
3. Chemical processing, drying, and high-value utilization: Through high-temperature chemical processing and drying processes, organic materials are converted into dry and sterile organic fertilizer raw materials or protein raw materials, which are free from mold and odor, can be stored for a long time, and are marketable for sale.  
4. Eliminate source pollution to prevent issues such as swill leakage, gutter oil returning to the dining table, odor diffusion, leachate pollution, and mosquito and fly breeding, ensuring the entire process of kitchen waste is safe and controllable.

Working Principle      
The entire equipment adopts a full-process technology consisting of front-end pretreatment, high-temperature processing, vacuum drying, and oil and fat separation, with automated continuous operation:  
1. Automatically sort kitchen waste into the pre-treatment system, and remove non-degradable impurities such as plastic bags, chopsticks, ceramics, glass, and metals through screening and sorting devices to ensure stable operation of the backend equipment.  
2. After being sorted, the organic materials enter the crusher, where blocky and strip-shaped materials are crushed into uniform particles, enhancing the efficiency of chemical preparation and drying.  
3. The squeezed, dehydrated, and crushed material enters the spiral squeezing dehydrator, where free water is forcefully removed, reducing subsequent drying energy consumption and improving processing efficiency.  
After high-temperature sterilization and dehydration, the material is sent into a sealed tank for indirect heating using high-temperature and high-pressure steam. Under high temperature and high pressure conditions, thorough sterilization, ripening, and lipid breakdown are achieved to ensure that the material meets harmlessness standards.  
After the completion of the vacuum drying and dehydration process, the vacuum drying stage begins, where moisture is quickly removed under low temperature and negative pressure, reducing the moisture content of the material to a safe level, making it less prone to mold and easier to store.  
6. Oil and fat separation and collection: The oil and fat precipitated during the chemical preparation and drying process are automatically collected through the separation system to obtain pure industrial oil and fat; the exhaust gas is collected and purified under negative pressure and then discharged after meeting the standards, with no secondary pollution throughout the process.  
7. After being discharged, molded, and dried, the material is cooled and discharged, becoming a dry, sterile, high-value organic raw material or protein raw material.

Equipment Advantages      
1. Fully integrated process, combining sorting, crushing, dehydration, deoiling, chemical processing, drying, and odor removal into one, truly achieving a closed-loop processing of the entire chain for kitchen waste.  
2. The sterilization process is thorough, with a high level of safety. The high-temperature and high-pressure sterilization process can completely eliminate various pathogenic microorganisms, achieving a high standard of harmlessness and eliminating biosafety risks.  
3. High resource utilization rate and significant economic benefits. High-purity industrial oils and fats can be recycled, and the dry material can be processed into organic fertilizer or protein raw materials, yielding dual benefits from both the oil and residue, while significantly reducing operating costs.  
4. With perfect front-end preprocessing, the system boasts stable sorting, impurity removal, crushing, and dewatering, offering triple protection against equipment entanglement, blockage, and wear, making it suitable for long-term continuous high-load operation.  
5. Operating under closed negative pressure, it ensures environmentally friendly and odor-free operations throughout the entire process. Odor is collected and purified in a centralized manner, resulting in no leachate, no dust, and no odor diffusion, meeting the strictest environmental protection requirements.  
6. High automation level and low labor cost: PLC intelligent control system automatically completes feeding, sorting, crushing, chemical preparation, drying, and discharging, eliminating the need for extensive manual supervision.  
7. High reduction rate and more reasonable land occupation: The volume and weight of waste are significantly reduced, resulting in finished materials with small volume, easy transportation, and easy storage. The overall equipment layout is compact.  
8. The material is sturdy and durable, with a long service life. The tank body is made of high-strength corrosion-resistant carbon steel/stainless steel, which is resistant to high temperatures, high pressures, and acid-base corrosion, ensuring a long equipment lifespan and low maintenance costs.

Scope of Application      
1. Urban large-scale centralized kitchen waste treatment center  
2. Centralized disposal stations for government agencies, schools, hospitals, and industrial parks  
3. Hotel clusters, food streets, and commercial district kitchen waste disposal stations  
4. Collaborative treatment of organic waste in agricultural markets and fruit and vegetable wholesale markets  
5. Organic fertilizer production enterprises, protein raw material processing enterprises  
6. The environmental sanitation department and waste incineration plant shall be equipped with a kitchen waste pre-treatment system

Process Flow

Specification, Model, and Parameters

Case Introduction