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Lignite Rotary Drum Dryer

Daily Capacity : 300-2500T/D

Final Moisture : 20±2%

Material : Lignite, Brown Coal, etc

Email : dongding@zzddjt.com

lntroduction

Lignite generally has the disadvantages of high humidity (30%-50%), low ignition point and large carbon dioxide emissions. The direct combustion of the non-extraction lignite raw coal, will bring serious problems of high environmental pollution, and increase the cost of plant installation and operation. Besides, higher water content leads to transportation cost increasing.

To solve the above problems of lignite properties, our technical personnels take full account of the characteristics of lignite, design the special internal structure of the cylinder, which further strengthens the anti-breakage of the unity block material, not only improving the thermal efficiency, but also effectively avoiding the excessive drying phenomenon of coal in the cylinder. Through the drying and dehydration treatment of lignite, the system can effectively improve the calorific index and storage performance of lignite, so that the indexes meet the requirements of commodity power coal, and have obvious economic, environmental and social benefits.

System

Firstly, wet material is crushed by the crushing machine, transported to the screw conveyor by the belt conveyor, then go into the rotary drum, after drying, most of the dry material will be discharged through the belt conveyor, the left material will go into the cyclone dust collector, where the dust will be collected, with the function of induced draft fan, the left material will discharged through the conveyor.

Advantage

1 The hot flue gas directly contacts with the materials, sufficient heat exchange and high production capacity;

2 Reasonable system configuration, it can use part of coal powder drying for fuel production, reduce costs and secondary pollution;

3 The system is equipped with PLC control system and video monitoring system, with a high degree of automation and simple operation;

4 The system through a unique sealing structure, no leakage, completely solve the sealing difficulties, to achieve a full range of non-oxidation negative pressure operation, eliminate the possibility of lignite combustion explosion, safe and reliable operation;

5 Low investment, low operating cost and and short investment recovery time.


Coal Dryer Running Site

Technical Parameter

ModelsProcessing Capacity (t/d)Initinal Moisture (%)Final Moisture (%)Total Powder (kw)Floor Space (㎡)
DDHG1924300±10
40±5
20±21288m*35m
DDHG2226500±1040±520±21658m*40m
DDHG2528700±1240±520±22138m*40m
DDHG28321000±1540±520±23108m*45m
DDHG31361500±2040±520±244610m*50m
DDHG34402000±3040±520±2658
12m*60m


Our factory is located in Zhengzhou City, Henan Province, and there are 5000 square meters of standardized industrial workshop. The number of staffs is more than 500, together we are dedicated to the R & D and production, installation, after-sales service and technical consultation of the drying equipment.

We have strict quality control system and full set of service. Our products have been exported to over 120 countries such as Indonesia, the Philippines, Vietnam, Thailand, India, Kenya, Nigeria, Romania and many other countries and regions, totally 600+ drying cases all over the world. We are here to provide better products and service for you.

We have strict quality control system and full set of service. Our products have been exported to over 120 countries such as Indonesia, the Philippines, Vietnam, Thailand, India, Kenya, Nigeria, Romania and many other countries and regions, totally 600+ drying cases all over the world. We are here to provide better products and service for you.

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