Integrated Sterilization and Drying Machine 3

Helping customers achieve a win-win outcome in both livestock and poultry farming development and environmental protection.

I. Technical Overview
Harmless disposal of dead livestock and poultry is a critical step in preventing the spread of infectious diseases. The high‑temperature rendering process, an advanced technology developed in recent years, integrates automation, digitalization, and resource recovery, offering greater environmental sustainability while meeting energy‑saving, emission‑reduction, and circular‑economy objectives. It features short processing times—approximately six hours per batch—and low energy consumption; the entire operation is fully enclosed, with no wastewater or odorous emissions, and by‑products such as fats and residues can be recovered for secondary value. Core equipment includes a control system, feeding and crushing unit, rendering machine, dryer, conveyor, fat separator, oil storage tank, exhaust gas incinerator, and exhaust‑gas treatment facilities. This technology effectively inactivates pathogens, reduces processing costs, minimizes environmental pollution, and extends equipment lifespan, making it of great significance for the safe and environmentally sound disposal of dead livestock and poultry.

II. Technical Highlights
1. High-temperature method: Refers to a process in which diseased or dead animals and related products are treated at elevated temperatures within a closed, atmospheric-pressure system.
2. Scope of application: Not applicable to animals infected with spore-forming bacterial diseases such as anthrax, nor to animals infected with bovine spongiform encephalopathy or scrapie, or to their products and tissues.

III. High-Temperature Process Technology
1. Control Integration Technology
It employs PLC-based automatic control, featuring automatic/manual modes, emergency protection, and self‑diagnostic fault detection. It is equipped with output and communication interfaces, enabling remote operation.
2. Integrated Feeding and Crushing Technology
Equipped with a hoist, crusher, and automatic disinfection system, it enables automated feeding, crushing, and discharge. The entire process features enclosed conveying, with a flexible channel design that allows for pre-processing of materials; after crushing, the material volume is ≤125 cm³ (5 cm × 5 cm × 5 cm).
3. High-Temperature Integrated Processing Technology
The system operates in a fully enclosed mode, with the vessel’s jacket heated by heat-transfer oil; the internal oil is mixed with the feed material. Under atmospheric pressure, the temperature is maintained at 180°C for a minimum of 2.5 hours (adjustable depending on the feedstock). Heat is applied via an interlayer heated by heat-transfer oil.
The reactor features an internal stirring arm capable of simultaneous sterilization, mixing, and particle size reduction, thereby minimizing wastewater generation and environmental protection costs while enhancing oil extraction efficiency.
4. Drying Integration Technology
The entire process is conducted under closed conditions, with jacketed heating; after rendering, the material is maintained at ≥160°C at atmospheric pressure for ≥2.5 hours (adjusted according to the specific feedstock). A dedicated reactor is used, and the stirring arm simultaneously performs sterilization, mixing, and comminution.
Drying and a specially designed kettle wall reduce wastewater treatment requirements and capital investment, while enhancing oil extraction efficiency.
5. Integrated Screw Conveyor Technology
The system is fully enclosed and automated, comprising stainless steel piping, a main shaft, helical blades, and a geared motor, and is responsible for material transfer between units, offering excellent containment.
6. Integrated Oil–Water Separation Technology
The residue is processed by a screw press, which features an eight‑stage screw and a square gearbox. It operates smoothly, is durable and low‑noise, delivers high yield with excellent oilcake quality, and is equipped with safety devices for maintenance.
7. Integrated Technology for Oil Storage Tanks
The entire oil‑transport process is fully enclosed, comprising stainless‑steel heated circulation pipelines (which utilize heat transfer oil to recover waste heat from cooling water), an oil storage tank, and a pumping system, ensuring a high degree of containment.
8. Integrated Technology for Flue Gas Incinerators
The steam generated during the feeding and oil–fat separation process is fully incinerated in a regenerative furnace chamber and, after being collected and treated by an automated system, is discharged into the exhaust gas treatment system.
9. Integrated Exhaust Gas Treatment Technology
It consists of a two‑stage acid–alkali spray tower, a mist eliminator, a wet electrostatic precipitator for dust and odor removal, and an ozone treatment unit. The exhaust gas is neutralized and de‑misted in the spray tower before being recirculated for further treatment; odor control is achieved through a packed tower and a biofilter, followed by wet electrostatic purification. The treated effluent is then discharged via a 15‑meter chimney, ensuring that no unpleasant odors are emitted from the plant site. Emissions comply with the Comprehensive Emission Standard for Air Pollutants, the Emission Standard for Odorous Substances, and the Control Standard for Hazardous Waste Incineration, thereby achieving green and environmentally benign treatment.

Product model

Scope of Application
The equipment has a wide range of applications and can be used for the harmless treatment of dead livestock and poultry, slaughterhouse by-products, and necrotic eggs during incubation, making it suitable for use in waste‑treatment facilities, large-scale farms, slaughterhouses, hatcheries, and other similar settings.

Products after rendering