Quartz sand dryers are mainly used to dry materials with a certain humidity and particle size range, and are widely used in building materials, metallurgy, chemical industry, cement industry, and all kinds of quartz sand, mineral powder, limestone, pulverized coal, quartz sand, clay, yellow sand, casting sand, scrubbing sand, various metal concentrates, tailings and other materials that are not afraid of high temperature and slight smoke pollution. According to different dry materials, the length-diameter ratio, power and weight of the equipment will change.

Working principle of Jinhua mechanical quartz sand dryer;

Quartz sand is sent to the hopper by belt conveyor or bucket elevator, and then enters the feeding end through the feeder of the hopper and the feeding pipe. The inclination of the feed pipe should be greater than the natural inclination of the material, so that the material can flow into the dryer smoothly. The drying cylinder is a rotary cylinder slightly inclined to the horizontal line. The material is added from the higher end, and the heat carrier enters from the lower end and contacts with the material in countercurrent, or the heat carrier and the material flow into the cylinder together. With the rotation of the cylinder, the material moves to the lower end under the action of gravity.

In the process of moving forward in the cylinder, the wet material is directly or indirectly heated by the heat carrier to dry it, and then it is sent out by the belt conveyor or screw conveyor at the discharge end. The inner wall of the cylinder is equipped with a material copying plate, which is used for copying and scattering materials, so as to increase the contact surface between materials and airflow, thereby improving the drying speed and promoting the forward movement of materials. Heat carriers are generally divided into hot air, flue gas and so on. After the heat carrier passes through the dryer, a cyclone separator is usually needed to collect the substances carried in the gas. If it is necessary to further reduce the dust content in the tail gas, it should be discharged through a bag filter or a wet filter.

Quartz sand dryer

Characteristics of quartz sand dryer:

1, quartz sand dryer has strong overload resistance, large capacity, low oil consumption and low drying cost;

2, adopting the downstream drying mode, flue gas and wet materials enter the dryer from the same side, and high evaporation intensity can be obtained by using high-temperature flue gas, and the outlet temperature of the dryer is low and the thermal efficiency is high;

3. Change the operation parameters according to different material properties, so that the materials can form a stable and completely broken fabric curtain in the drying cylinder, and the exchange of mass and heat is more sufficient;

4. The new feeding and discharging device eliminates the feeding blockage, discontinuity, unevenness and material return of drum dryer, and reduces the load of dust removal system;

5. The new internal structure strengthens the cleaning and heat conduction of the dispersed materials, eliminates the material sticking phenomenon on the inner wall of the cylinder, and has stronger adaptability to the moisture and viscosity of the materials;

6. The dryer realizes "zero horizontal thrust", which greatly reduces the wear of supporting wheels and makes the drum run stably and reliably;

7. The dryer adopts "self-aligning roller device", so that the cooperation between rollers is always in a state of line contact, thus greatly reducing wear and power loss;

8. The granularity and moisture of the product can be controlled according to the user's requirements. After the coal slurry is dried, the moisture content of the product can reach below 8%, and the particle size can be controlled below 8 mm ..