Which type of machines use in boiler burner automation sections?

No Special Machines are used instead Sensors Like Flame Detector, Temperature Sensor, Pressure Sensor etc. are used.

Pre-Ignition or Post-Shut down, Purge Blowers are used.

For Flame Ignition;    Ignition Transformer & Spark Ignitors are used.

Double Shutoff Valve on Fuel Lines are Used with Fuel Leakage Detection.

etc. etc. etc.