Research and development background of vertical dryer

VERTICAL DRYERMainly used for drying formed coal balls, it is a large-scale vertical industrial coal drying furnace developed after years of dedicated design and improvement, in order to solve the technical problems of low production and high energy consumption in traditional coal drying furnaces. It absorbs European Xx technology and combines our company's years of Xx drying machine design and manufacturing concepts and market demand-VERTICAL DRYER.

VERTICAL DRYERIt is not based on the transformation of traditional drying furnaces. But it was developed under the conditions of market demand and lack of rules and regulations. Faced with the common problems of high investment, large footprint, and high failure rate in current coal drying furnaces, it is a successful product that has achieved significant results after several years of research and development, industrial testing, product upgrading, and large-scale operation, using low-temperature high air flow and gravity principles to address the drying characteristics of industrial coal. During the drying process of this product, it fully embodies the characteristics of practical innovation, high thermal efficiency, cost reduction, and increased production capacity. The safety production and environmental protection of this equipment are ideal equipment for drying in coal production lines.

Working principle of vertical dryer：

The formed "water balls" are transported to the furnace top by a belt conveyor and evenly distributed throughout the entire cross-section of the furnace top by a fabric device. Briquette moves slowly down on its orbit by gravity while exchanging heat with strong winds. The moisture emitted by the steamed coal is randomly carried away by strong winds. The coal is fully dried after about two hours of evaporation process.

Economic characteristicsCompared with the commonly used reflux drying furnace today, the investment amount has been reduced by half; The land area is 1/5-1/3 of its total; Energy consumption and operating costs have been significantly reduced.

Usage characteristicsThis product has good process compatibility and is easy to connect with other equipment and achieve automation in the production line; Easy to operate and maintain equipment; The drying oven itself has no mechanical moving parts and does not require daily maintenance; Continuous operation, high efficiency and large output;

Used in a large fertilizer plant to dry coal rods, good results were achieved: when the coal rods were fed into the gasifier, the moisture content was reduced to about 3%, and the gas production was significantly increased; Significant savings in manpower and reduced labor intensity; Saved space and increased production.

Main applicationsAfter being pressed and formed by a forming machine, the moisture content of pulverized coal is usually 12-14%. After drying, its moisture content is reduced to 2-4%, which can meet the strength and storage requirements. On this basis, after adaptive modification, the moisture content can be reduced to less than 1.5%; It can also dry particles such as agglomerates and coal rods.

Structural compositionThe vertical dryer mainly consists of a fixed cylinder, an air inlet and outlet device, an inlet and outlet device, a heat exchange device, an insulation device, etc.

Technical parameters of vertical dryer：

Model	Output (t/h)	Moisture in front of the dryer	Moisture content after drying	Drying time (h)	Power (kw)
LG1800	5-10	>25%	1.5-5%	1.5-2.5	22
LG2200	8-12	>25%	1.5-5%	1.5-2.5	22
LG2800	12-20	>25%	1.5-5%	1.5-2.5	37
LG3200	25-35	>25%	1.5-5%	1.5-2.5	55

Daily maintenance of vertical dryer：

Daily maintenance and upkeep

① Wipe the equipment with a soft cotton cloth every day to maintain a neat appearance.
② Before starting up every day, check the three components of the air source, add lubricating oil when the oil level is low, and drain the stored water.
③ Clean the fluff inside the dust collection box every day to ensure good ventilation and maximize the drying effect of the equipment.
Monthly maintenance and upkeep
① Open the trunk lid and clean the inside of the equipment with a soft cotton cloth.
② Add lubricating oil to bearings and other moving parts to reduce friction.
③ Check the tension of the belt and adjust the pulley.
④ Strengthen the parts that are prone to looseness and detachment after vibration, including electrical circuits, door rocker arms, pipeline connections, etc.
⑤ Regularly clean the accumulated dust inside.
Annual maintenance and upkeep
① Check if the fixing bolts of the machine base are loose and sturdy.
② Check the tightness of the supporting spring connection and adjust it accordingly.
③ Check the grounding status of the equipment and ensure reliability.