What is quartz sand?
Quartz sand is a quartz particle obtained by crushing quartz stone. Quartz stone is a non-metallic mineral, a hard, wear-resistant, chemically stable silicate mineral. The color of quartz sand is milky white, colorless and translucent, and Mohs hardness is 7.
Quartz sand is an important industrial mineral raw material, non-chemical dangerous goods, widely used in glass, casting, ceramic and fireproof materials, smelting ferrosilicon, metallurgical flux, metallurgy, construction, chemicals, plastics, rubber, abrasives, filter materials and other industries.
Quartz sand drying equipment Working principle:
After the wet material is put into one end of the dryer, the material is evenly distributed and dispersed in the dryer under the flipping of the inner tube, and the material is fully contacted with the cocurrent (countercurrent) hot air to accelerate the drying heat transfer. Passed to the driving force. In the drying process, under the action of the inclined plate and the hot air flow, the material can be adjusted to the other side of the dryer to discharge the finished product.
Quartz sand drying equipment
◎ Large particles in chemical, mining, metallurgical and other industries, such as: mine, blast furnace slag, coal, metal powder, phosphate fertilizer, ammonium sulfate.
◎ Drying of powder and granular materials with special requirements, such as: HP foaming agent, distiller's residue, light calcium carbonate, activated clay, magnetic powder, graphite, dregs.
◎Requires low temperature drying and requires large quantities of continuous drying materials.
Quartz sand drying equipment Features:
◎The drum dryer has a high degree of mechanization and a large production capacity.
◎The fluid passes through the cylinder with low resistance and low functional consumption.
◎ The adaptability to material properties is relatively strong.
◎ stable operation, low operating cost, and good uniformity of product drying.
How to make the drum dryer achieve low loss and high efficiency?
HZG rotary drum dryer is a cylinder with a slight tilting of the main body and adjustable speed within a certain range. The wet material is fed into the cylinder by the feeder, and the material is dry under the flapping device of the inner cylinder. The device is evenly distributed and dispersed and is in full contact with the hot air (cocurrent or countercurrent) passing through the cylinder, which accelerates the drying heat transfer and mass transfer. Thereby achieving the purpose of drying. How to make the drum dryer achieve low loss and high efficiency?
1. Pay attention to the use of cooling water: the fan and pump used in the drum dryer are large equipment, and the fan is basically running continuously, so the motor used is very easy to heat. Here we need to use water for cooling. . But today, environmental problems are getting worse, and water is also a scarce resource. At this time, we need to recycle the cooling water, which not only reduces the loss, but also saves water.
2, consider the use of thermal energy: drum dryer is the use of thermal energy to some of the equipment with high water content, can not meet the production requirements of the drying operation. Whether or not its thermal energy can be fully utilized has become a top priority. Usually, we use coal, diesel, natural gas and heating pipes to generate heat through specific equipment. These equipments generally include four types of coal-fired furnaces, fuel burners, gas burners and electric heaters. The use of coal-fired furnaces is relatively extensive, but most of them can only be used in applications where material requirements are not strict, and heat exchangers are required in applications where strict requirements are required. Burners are commonly used in large dryer equipment, which is highly automated and can significantly reduce labor. Electric heaters are generally only used in the laboratory and are an ideal device.
3, pay attention to the overall insulation of the drum dryer: drying work is mainly the use of thermal energy, then the full use of thermal energy has become an important one. Therefore, we must pay special attention to the insulation work of the tumble dryer. No heat loss can occur in any part.
4, the use of frequency converter: Fan is an important supporting equipment of the drum dryer, and its basic operation is continuous, its loss is very large. Here we have to use the frequency converter, we can artificially control the operation of the fan after using the frequency converter. In addition, the inverter can be added at the dust removal equipment.
5. Pay attention to the design of the hot air distributor: if the thermal energy wants to contact the wet material, it must pass the hot air distributor. How to design the hot air distributor is an important task, which directly affects whether the material drying can meet the requirements.
6. Always check, maintain and maintain the equipment to ensure that all bolt fasteners are not loose. Always pay attention to the contact between the raceway and the retaining wheel and the tug, the windshield, the gear cover without wing cracks and frictional damage. Waiting for the situation.
