Ore drying equipment

Ore drying equipment

Ore dryer is widely used in building materials, metallurgy, mineral processing, chemical industry, cement and other industries, and can be used for drying slag, calcium carbide slag, limestone, clay, river sand, quartz sand, water slag and other materials. Wantai ore dryer is suitable for various combustion furnaces: high temperature boiling furnace, coal pulverizing furnace and artificial coal stoking furnace. The ore dryer or slag dryer is also a rotary dryer, which is mainly composed of a rotary cylinder, an induced draft device, a high-speed breaking device, a lifting plate, a self-cleaning device, a transmission device, a conveying device, a hot air device, a deceleration device It is composed of parts such as machine, support device and sealing device. The ore dryer has reasonable design, excellent production, stable performance, advanced technology, high output, low energy consumption, small footprint and high degree of mechanization.
advantage:
1. The processing capacity is relatively large, the overload resistance is strong, the thermal efficiency is high, the coal consumption is reduced by about 20%, and the drying cost is directly reduced. The transmission gears use pin-changeable gears to replace the traditional cast steel gears, which saves cost and investment, and greatly reduces maintenance costs and time. 2. In order to achieve the best drying effect in the design, the downstream drying method is adopted. The material and the heat source airflow enter the drying equipment from the same side, the outlet temperature of the dryer is low, and the thermal efficiency is high.
3. It has achieved innovation in the internal structure, strengthened the cleaning and heat conduction of the dispersed materials, and eliminated the sticking phenomenon of the inner wall of the cylinder.
4. A new type of feeding and discharging device is used, which eliminates the phenomenon of ore dryer feeding blockage, discontinuity, unevenness and material return, and reduces the load of the dust removal system for you. The equipment has made various technological innovations in the lifting device system, especially the use of a new multi-combination lifting device, which overcomes the "wind tunnel" phenomenon of the traditional dryer.
5. It can meet the particle size and moisture requirements of different users for slag materials after drying.
Scope of application
Mineral slag, limestone, clay, river sand, quartz sand, water slag, coal slime, sludge and other materials with high moisture and specific gravity can use the ore dryer.
working principle:
1. The slag is sent to the hopper by the belt conveyor or the bucket elevator, and then enters the feeding end through the feeding pipeline through the feeding machine of the hopper.
2. The inclination of the feeding pipeline should be greater than the natural inclination of the material, so that the material can flow into the mining dryer smoothly.
3. The dryer cylinder is a rotating cylinder slightly inclined to the horizontal line. The material is added from the higher end, the heat carrier enters from the low end, and is in countercurrent contact with the material, and some heat carrier and material flow into the cylinder together.
4. With the rotation of the cylinder, the material runs to the bottom end by gravity. When the wet material moves forward in the cylinder, it is directly or indirectly fed by the heat carrier, so that the wet material can be dried, and then sent out through a belt conveyor or a screw conveyor at the discharge end.
5. There is a copy board on the inner wall of the ore dryer cylinder, which is used to copy and sprinkle the material to increase the contact surface between the material and the airflow, so as to improve the drying rate and promote the advancement of the material.
6. After the heat carrier passes through the dryer, a cyclone dust collector is generally required to capture the materials in the gas (the heat carrier is generally divided into hot air, flue gas, etc.).
If it is necessary to further reduce the dust content of the exhaust gas, it should also be discharged after passing through a bag filter or a wet filter.