Lignite Drying production line

Process Introduction

This process consists of raw material conveying system, heating system, hot air supply system, drying system and exhaust gas treatment system.

The raw material conveying system transports raw materials with 30~40% moisture content into the dryer through conveying equipment.

The drying system is responsible for evaporating moisture from the raw materials to achieve the required product moisture content.

The hot air supply system consists of burner, high-temperature gas purification device and air mixing device. The burner is responsible for fuel combustion, the high-temperature gas purification device ensures cleanliness of drying flue gas, and the air mixing device maintains drying air temperature to meet process requirements (approximately 300~600℃).

The hot air supply system delivers process air into the dryer. For energy saving, part of the exhaust gas after drying is introduced into the air mixing device and blended with high-temperature air from the purification device to form the required process air for drying.

The exhaust gas treatment system processes the exhaust gas from the dryer to meet local environmental protection standards.

Technical Advantages
Complete combustion with smokeless hot air.
High cleanliness of hot air with dust content of 50~200mg/Nm3, purification process can be selected as required.
Convenient temperature adjustment of hot air, adjustable between 300~600℃ with temperature stability of ±3℃.
Durable equipment with low operating costs.
Combustion thermal efficiency exceeds 97%, achieving significant energy savings.