In the industrial field, the selection of electric heating rotary furnaces requires comprehensive consideration of six core elements: material characteristics, process requirements, production scale, energy consumption control, equipment quality, and after-sales service. Let's take a detailed look below!

Large diameter and high output industrial electric heating rotary furnace (click on the picture to view product details)

1. Core selection parameters
temperature control
Rated temperature: usually 1100 ℃, the operating temperature should be ≤ 1000 ℃.
Temperature control accuracy: ± 1 ℃ to ± 5 ℃.

Heating method:
Resistance wire heating: High economy, suitable for drying ordinary resins.

Furnace structure
Material: Carbon steel is commonly used in high-temperature areas, with strong corrosion resistance and low wear and tear.

Size:
Diameter: Φ 500mm-1000mm.
Length: 1m-8m (adjustable as needed).
Tilt angle: 1-5 ° (affecting the residence time of materials, drying process should choose 1-3 °, preheating process should choose 3-5 °).

Internal copying board design:
Granular resin: Lift up copying board (enhances material dispersion).
Powdered resin: fan-shaped plate (reduces flying).
Wet material resin: Stirring type plate making (accelerating water evaporation).

2. Selection Decision Process
Clarify requirements
Material types: such as metal minerals, chemical raw materials, building materials, etc.
Process requirements: drying, preheating, calcination, sintering, etc.
Production scale: Determine the desired production capacity, such as 200kg/h.

parameter matching
Temperature range: Select based on the melting point and boiling point of the material.

Heating method:
Direct heating type: high economy, suitable for ordinary heat stable resins.
Indirect heating type: used for heat sensitive, corrosive, or high-purity resins.
Vacuum heating type: suitable for resin raw materials containing solvents, can reduce the removal temperature.

Brand and manufacturer screening
Reputation and Strength: Choose manufacturers with production qualifications, technical teams, and successful cases.
Field visit: Visit the production workshop to verify the equipment manufacturing process and quality.

Technical confirmation and acceptance
Technical parameters: Verify temperature control accuracy, heating speed, and other indicators.
After sales service: Confirm repair response time and spare parts supply capability.
Installation acceptance: Supervise the installation process and conduct equipment no-load and load tests.

3. Application scenarios and recommended models
Metallurgical industry
Application: Metal extraction and refining.
Recommended model: Φ 800mm × 3000mm rotary furnace, equipped with heat-resistant alloy furnace tubes, with a tilt angle of 3-5 °.

chemical industry
Application: Catalyst preparation, petroleum processing.
Recommended model: Φ 600mm × 4000mm rotary furnace, using indirect heating method to ensure product purity.

building materials industry
Application: Production of cement clinker.
Recommended model: Φ 700mm × 4000mm rotary furnace, equipped with high-efficiency refractory lining.

environmental protection industry
Application: Solid waste treatment, regeneration of waste activated carbon.
Recommended model: Φ 400mm × 3000mm rotary furnace, equipped with dust removal facilities and exhaust gas treatment device.

4. Common Problems and Solutions
The instrument indicator light does not light up after power on
Reason: The plug is not properly inserted and there is a circuit malfunction.
Solution: Check the plug and fuse.

The temperature inside the furnace does not rise
Reason: Low set temperature or damaged control circuit.
Solution: Adjust the set temperature or repair the circuit.
During the heating process, the temperature does not rise but instead decreases
Reason: The positive and negative poles of the thermocouple are reversed.
Solution: Replace the thermocouple connector.

Large diameter multi temperature zone production electric rotary furnace (click on the picture to view product details)

5. Maintenance suggestions
routine inspection
Clean up the accumulated dust inside and outside the furnace.
Check if the surface of the heating element is clean and free of wear.

regular maintenance
Check the operation status of the transmission device.
Measure the contact between the tire and the supporting wheel.
Replace the heat transfer oil (depending on usage).

Long term maintenance
Conduct a comprehensive inspection of the furnace body and heat exchanger.
Verify if the circulatory system is functioning properly.Click to learn more Electric rotary furnaces! Or click on online customer service to learn more about product information!