Technical requirements and specifications for explosion-proof electric heating blast drying ovens

1. Normal operating temperature: 25-60°C.

2. Voltage level: 380V/50Hz.

3. Heating method: Electric heating with fan.

4. Temperature control accuracy: ≤±1°C.

5. Heating speed: Reach 50°C within 15 minutes.

6. Maximum housing temperature: ≤35°C.

7. Temperature uniformity: ≤±5°C.

8. Explosion-proof rating: EXIIBT4. All electrical components used in the equipment, including the control box, sensors, motor, electric heater, etc.

9. The equipment must have an explosion-proof certificate. This certificate can be issued by a nationally recognized third-party explosion-proof testing agency or the manufacturer must be qualified to produce explosion-proof ovens.

10. Waterproof rating: IP65. The entire equipment is designed for outdoor use.

11. Housing material: (Painted carbon steel)

12. Interior material: 304 stainless steel with a mirror finish

13. Internal space: Accommodates four pallets, arranged in upper and lower layers. Each pallet measures 1200 x 1200 x 1100 mm.

14. The total internal load capacity is 4 tons, with each layer carrying 2 tons. An oil drain pan is provided at the bottom.

15. An internal anti-collision guardrail is installed to prevent damage to the oven during loading and unloading.

16. Lifting rings are located on the top of the equipment, and forklift slots are located on the bottom for easy transport.

17. Positioning function: Once the equipment is positioned, it can be anchored to the ground to prevent movement.

18. Timer Function:

· The timer function can be turned on or off.

· The timer has two settings (manual/automatic):

· When manual is selected, the timer starts immediately.

· When automatic is selected, the temperature must reach the set value before the timer starts.

· When the timer expires, an audible and visual alarm is triggered and the unit automatically shuts down.

19. The electrical components used in the equipment cabinet must be Schneider or Omron.

20. Interlocking Protection List:

· Phase Sequence Protection

· Door Opening Heating Shutoff Protection

· High Temperature Protection - Temperature Sensor

· Ultra-High Temperature Protection - Mechanical Temperature Switch

· Overload Protection

· Leakage Protection

· Short Circuit Protection

· Ground Fault Protection

· Timer Protection.

21. The electric heating control method is a PID temperature controller + SSR solid-state relay. Steam heating is also possible.

22. The oven has double doors; the door hinges must be stable and reliable, and not prone to deformation or damage.

23. The equipment is equipped with an explosion vent to prevent excessive pressure inside the enclosure.

24. Equipment failure response time: within 24 hours.

25. Equipment warranty: one year.

26. Equipment documentation: Provide the overall equipment certificate of conformity, product specifications and certificates of conformity for purchased components, product specifications for explosion-proof products, operating and maintenance instructions for the entire equipment, spare parts list, equipment commissioning report, certification of equipment materials, and equipment explosion-proof certificate.