Fermentation tank operation and maintenance methods

**Fermentation Tank Structure and Operation**

The fermentation tank is designed with a robust and efficient structure to ensure optimal performance in fermentation processes. Below are its key structural features and operational guidelines:

### **Structural Features:**

1. **Main Components:**

- **Tank Body and Support Frame:** Provides structural stability.

- **Tank Liner and Head:** Made of high-quality polished stainless steel for durability and cleanliness.

- **Jacket and Reinforcement:** Constructed from stainless steel with a polyurethane foam insulation layer to maintain temperature (recovery temperature: 20°C in 24 hours).

2. **Heating and Cooling:**

- **Heating:** A spiral heater is located at the center of the jacket.

- **Cooling:** The jacket facilitates cooling when required.

3. **Outer Cover:** Made of 2mm thick frosted stainless steel for enhanced durability.

4. **Sealing and Connections:**

- The agitator and lid are sealed with a mechanical seal.

- Upper and lower lid connections use stainless steel studs with XB250 non-toxic rubber gaskets for effective sealing.

### **Operation Method:**

1. **Initial Inspection:**

- Check all connecting threads due to potential displacement during transportation.

2. **Agitator Test:**

- Run the agitator without load to ensure all transmission components function correctly before production.

3. **Steam Connection:**

- Inspect all joints after connecting steam. Tighten pipe joints and studs to eliminate leaks before operation.

### **Fermenter Usage Guidelines:**

1. **Steam Pressure:**

- Do not exceed the rated operating pressure.

2. **Air Addition:**

- Slowly open the inlet valve to reach the required pressure. Install a steam trap at the condensate outlet.

3. **Safety Valve:**

- Adjust according to actual steam pressure but avoid excessive use.

4. **Monitoring:**

- Continuously monitor steam pressure and adjust the inlet valve as needed.

5. **Post-Operation:**

- Drain all remaining water from the jacket after use.

6. **Leak Management:**

- If leaks occur at air inlet or water outlet joints, tighten joints or replace packing as necessary.

7. **Regular Maintenance:**

- Inspect the pressure gauge and safety valve regularly. Repair or replace faulty components promptly.

**Note:** Updated on June 20, 2013, to reflect customer feedback and requirements.