1. Livestock and poultry carcasses are transported by a dedicated enclosed dump truck to the Animal Harmless Treatment Center.

2. The dump truck directly unloads the material to the raw material collection bin, and then enters the crusher. The material is broken into a pellet with a particle size of 40 mm-50 mm under the action of a reamer in a closed environment.

3. The broken material is directly pumped into the high-temperature production tank through the pipeline and the material pump. During the process, the entire process is sealed and operated intelligently with one-touch operation. No direct contact is required by personnel, and secondary pollution of the bacteria is avoided.

4. After the material is full (6 tons of raw materials), close the tank mouth, heat up and pressure sterilize. After the temperature in the tank reaches 130-140°C (0.3MPa), maintain the pressure for 30 minutes (Europe and American sterilization standards can also be based on different The material adjusts the pressure and temperature), then enters the drying stage, uses the low temperature vacuum drying method, and dries for 3-4 hours (after adjusting the drying time according to the different moisture of the material), the water content of the material is reduced to 10-12%, including About 30% of fats and oils. The entire process uses the PLC intelligent control system, which is safe and simple.

5, open the material outlet, the material is transmitted to the semi-finished product buffer warehouse through the screw conveyor system. The odor during the process is collected through a negative pressure pipe.

6, semi-finished materials sent to the degreasing machine through the screw conveyor, physical degreasing, the oil content of the material down to 10-12%, get meat and bone meal and fat.

7. The meat and bone meal enters the cooling system through a screw conveyor, and the temperature of the material is reduced to room temperature ±5°C. The material then enters the smashing system. The crushed material passes through the automatic weighing and packaging system and is packaged into the storage.

8, after the oil physical purification by heating, to achieve solid oil, water standards, through the oil system, into the grease storage tank.

9. In the process of chemical drying, the generated exhaust gas passes through a pressure relief dust reducer and enters a water-cooled condenser, condenses high-temperature steam into water, and the cooled gas enters a chemical scrubbing tower. The chemically neutralized, neutralized gas finally enters the bio-adsorption tank, utilizes the filler microbes in the tank, and finally reaches the standard discharge.

10. During the production process, waste gas is collected by a negative pressure pipeline into a chemical scrubber tower, and then enters a biological adsorption pond and enters a biological purification process to meet the standard emission.

11. Wastewater (3-5m3/day) is generated during the drying process. Water vapor is discharged from the exhaust pipe at the top of the sterilizing tank. After condensation, it is condensed into distilled water. It contains no grease, and the main harmful components CODcr, bod, and ammonia nitrogen can pass through directly. Closed pipes are discharged into sewage treatment plants for centralized treatment.