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However, ordinary camera equipment cannot withstand the heat, dust and continuous operating conditions inside furnaces, preventing personnel from monitoring furnace conditions in real time.

MITSULI provides high-temperature-resistant in-furnace monitoring systems. With specially designed heat-resistant housings, airflow-based dust protection and automatic retraction safeguards, the camera lens can extend into specified furnace environments at temperatures below 2000°C, allowing managers to observe flames, materials, melting and combustion as they occur.

Does Your High-Temperature Process Face These Challenges?

• Is the furnace too hot to observe directly? Conventional cameras cannot withstand the temperature, making it difficult to continuously monitor combustion and process changes.

• Are flames unstable and combustion conditions hard to assess? Without live video, operators struggle to observe flame shape, burning slag and material changes.

• Does furnace dust contaminate the lens? High-temperature particles and dust degrade image clarity and increase cleaning and maintenance needs.

• Could an unexpected power failure, air-supply interruption or overtemperature event damage equipment? Cameras and lenses may be damaged if the equipment cannot be withdrawn from the hot zone quickly.

Core Technologies and Product Advantages

01 | High-Temperature Video Monitoring in Critical Furnace Areas

The camera and pinhole lens are installed inside a purpose-built heat-resistant protective housing. Depending on site conditions, the system can be mounted on the furnace wall, with the lens extending into the furnace to observe flames, molten materials, heating and combustion.

It is intended for specified furnace operating environments below 2000°C. Actual suitability must be evaluated according to equipment configuration and site conditions.

02 | Automatic Retraction Protection to Reduce Equipment Risks During Abnormal Events

The system includes protective mechanisms for power loss, air-supply failure and excessive temperatures. When an abnormal condition is detected, the monitoring equipment can automatically retract outside the furnace to reduce heat damage to the camera and lens.

03 | Rotating Airflow Dust Protection for Clearer Images

A specially engineered airflow distribution design forms a rotating protective air curtain in front of the lens. This reduces direct contact between furnace dust and the high-temperature lens, helping maintain consistent image quality and reduce cleaning and routine maintenance frequency.

04 | 3-Megapixel IP Camera with Live Viewing and Recording

The 3-megapixel IP camera enables personnel to observe furnace conditions in real time and supports video recording for process observation, abnormal-event tracking and equipment management.

05 | Temperature Monitoring and High-Temperature Alerts

The camera provides temperature detection, displays detected temperatures in the video image in real time and issues high-temperature alerts to help operators stay informed about equipment operating conditions.

Applicable Industries and Use Cases

• Steel and metallurgy

• Observe flames and material heating conditions inside steel reheating and metallurgical furnaces.

• Cement and construction materials

• Monitor combustion and material conditions in cement kilns and other high-temperature process equipment.

• Power generation and energy

• Observe combustion flames and slag conditions in coal-, gas- and oil-fired boilers.

• Waste incineration and environmental services

• Continuously monitor combustion conditions in waste incinerators to support process supervision and abnormal-condition assessment.

• Petrochemicals and industrial heating equipment

• Customized in-furnace video monitoring solutions for high-temperature or continuous industrial processes.

How Should You Evaluate an In-Furnace Monitoring System?

Furnace construction, operating temperatures, furnace wall thickness and air-supply conditions differ between plants. Suitable lens length, protective measures and drive configurations therefore vary as well.

First confirm the furnace temperature, installation position, furnace wall thickness, compressed-air availability and the process conditions you want to observe.

Make the inside of a high-temperature furnace visible rather than a monitoring blind spot.

MITSULI helps evaluate heat-resistant cameras, in-furnace monitoring equipment and abnormal-condition safeguards for your site's environment, providing a video monitoring solution suited to long-term industrial operations.