The three-cylinder dryer production line consists of: heat source system, feeding system, conveyor belt, feeding chute, drying equipment, discharge belt, vibrating classification screen, dust removal system, induced draft fan, electronic control system and other equipment. The sand is sent to the hopper by a belt conveyor or bucket elevator, and then enters the feeding end through the feeding pipe through the feeding machine of the hopper. The inclination of the feeding pipe should be greater than the natural inclination of the material so that the material can flow into the sand dryer (yellow sand dryer) smoothly. The dryer cylinder is a rotating cylinder, which is slightly inclined with the horizontal line. Materials are fed in through the higher end, and heat carrier enters through the lower end, and contacts with materials in counter-flow direction. Sometimes the heat carrier and materials enter into the cylinder in parallel flow. As the cylinder rotates, the materials move to the lower end due to gravity. When the wet materials move forward in the barrel, they receive the heat from the heat carrier directly or indirectly, so that the wet materials can dry, and are sent out from the discharge end through a belt conveyor or screw conveyor. The inner wall of the barrel of the sand dryer (yellow sand dryer) is equipped with a lifting plate. Its function is to lift the materials and scatter them down, thereby increasing the contact surface between the materials and the airflow, thereby increasing the drying rate and promoting the drying of the materials. go ahead. Heat carriers are generally divided into hot air, flue gas, etc. After the heat carrier passes through the dryer, a cyclone dust collector is generally required to collect the materials in the gas. If you need to further reduce the dust content of the exhaust gas, it should also be discharged after passing through a bag dust collector or wet dust collector.

Product advantages

The dryer has large processing capacity, low fuel consumption and low drying cost. The dryer has the characteristics of high temperature resistance and can use high-temperature hot air to quickly dry materials. It has strong scalability and is designed with production margin in mind. Even if the output increases slightly, there is no need to replace the equipment. The equipment adopts an aligning tug structure, and the tug and the rolling ring cooperate well, which greatly reduces wear and power consumption. The specially designed blocking wheel structure greatly reduces the horizontal thrust caused by the tilting operation of the equipment. Strong overload resistance, smooth cylinder operation and high reliability.

Mechanical characteristics

The operation is continuous and uniform drying products can be obtained; the drum dryer has a short drying time when drying materials, generally about 7-30s. The dried products are not in danger of being exposed to high temperatures. It is suitable for drying heat-sensitive materials, but the wall surface may also be overheated. ; The dried material can be dried regardless of whether the slurry viscosity is high or low; the thermal efficiency is high; since there will be no residual product left in the dryer, a small amount of material can be dried; the operating parameters of the drum dryer have a wide adjustment range and are easy to adjust; The inside of the drum dryer is easy to clean and repurpose; the waste gas does not take away materials, so there is no need to use dryer accessories such as dust removal equipment. Drum dryers are widely used for drying slurry materials, such as dry yeast, antibiotics, lactose, starch slurry, sodium nitrite, dyes, calcium carbonate and distillation waste liquid, etc.

Application scope