Brief analysis of the structural characteristics of electric heating hot and cold cylinders

**Structural Features of Electric Heating Hot and Cold Tanks**

Electric heating hot and cold tanks are specialized storage devices designed for heating, maintaining temperature, and cooling materials using electricity. They are widely used in industries such as food, pharmaceuticals, chemicals, and scientific research, especially in environments lacking steam heat sources.

### **Key Features:**

1. **Capacities:** Available in sizes ranging from 50L to 5000L.

2. **Heating Method:** Heating rods are inserted into the jacket, which is filled with thermal oil or water to generate heat.

3. **Temperature Control:**

- Heating temperature: ≤350°C.

- Heating time: 20–90 minutes (based on process requirements).

- Temperature control is managed by an electric heating rod connected to a temperature controller, ensuring a temperature difference of less than one degree.

4. **Inner Tank Design:**

- Mirror-polished inner surface for easy cleaning.

- Removable flaps on the upper cover for accessibility.

- The bottom is spun into an R-angle, welded, polished, and tilted 5° toward the discharge port to ensure complete material drainage.

5. **Jacket Type:** Fully jacketed for efficient heat transfer using oil or water.

6. **Insulation:** Filled with materials like pearl wool, rock wool, or polyurethane foam for thermal insulation.

7. **Surface Finish:** Options include mirror polish, 2B natural matte, or frosted matte finishes.

8. **Agitation System:**

- Top-centered agitation with a reducer output shaft connected to the agitator shaft via a slip-on sleeve for easy disassembly and cleaning.

- Agitation speed: 15–120 rpm.

9. **Configuration:** Includes an electrical control box, temperature meter, liquid and medium inlets/outlets, and vents.

10. **Material and Finish:** Made of stainless steel with flanging process arc transitions for cleanliness and aesthetic appeal.

These tanks are designed for efficient heating, cooling, and agitation, making them ideal for various industrial and research applications.