Used sand hand dryer uses fly ash sludge dryer drying hand dryer

Sludge dryer refers to precipitate generated when the physical, chemical, physico-chemical and biological wastewater treatment method, particulate matter and litter, is a product of sewage treatment, is made of an organic debris, bacteria, fungi extremely complex heterogeneous body body, inorganic particles, colloids and other components. The main characteristics of the sludge are: high moisture content (up to 99%), high organic content, easy to corrupt smelly and smaller particles, smaller proportion, as a gum liquid. Sludge by source include: sewage sludge, industrial waste water sludge and sludge. Disposal and treatment of various sludge has restricted the urban development and urban health ills. Fly ash drying dryer system in coal-fired boilers in power plants, fly ash emissions can be divided into dry and wet row row two. Currently, the cement industry developed areas, such as Jiangsu, Shandong, Zhejiang, Hebei and other places, dry fly ash as admixture for cement production, and the prices better, has shown the potential demand, jumped to a resource; wet fly ash each term physical and chemical properties of dry fly ash is basically the same, but due to moisture large (up 45%), cement production can not meet the requirements, are not favored by the market, only to pile up in the wet gray library, the more positive the more , serious environmental pollution. With the continuous optimization of the national industrial policy, and properly handle the increasingly harsh environmental regulations, wet fly ash has been put on the agenda. Only the wet fly ash at a reasonable energy consumption, simple process for drying to low moisture before turning waste into treasure, to achieve social and economic benefits of double harvest. Fly ash dryer widely used to solve the problem of pollution and fly ash disposal problems, but also to fly turning waste into treasure, an increase of economic benefits. Ash dryer works and Features: fly ash dryer is suitable for fly ash, gypsum and titanium gypsum and other industrial dust, sludge drying, which works as follows: Powder or granular ash by the feeding conveyor belt to the feeder, and then by feeder fly ash transported to the drying drum, fly in the drying drum cloth copy board is turning down, evenly dispersed full contact with the hot air , to heat and mass transfer in drying purposes. Fly dried in drum unloading terminal is discharged finished by the belt feeder machine to dry goods output, complete the drying process. Fly ash dryer equipment for fly ash initial moisture than other materials, the proportion is smaller than other materials, changes in liquidity drying process is characterized by a large design. With a compact, small footprint, is one area of ??the same production single cylinder drying ground dichotomy, reliable, low power consumption, high thermal efficiency, material drying effect, easy to implement automatic control, less operator . Sand dryer uses: sand dryer short drum dryer is a dryer handle a large number of materials, reliable operation, operating flexibility, adaptability, large capacity. Drum dryer is generally adapted to granular materials. Especially sand dryer, drum dryer drying with excellent results. Advantages drum dryer production capacity, wide application range, low flow resistance, allowing greater volatility in the operating range, and convenient operation. Commonly used in dry sand, artificial sand, quartz sand, slag, cinder and so on. Sand dryer structure and principles: sand dryer mainly by: 1, cylinder; 2, the front roller ring; 3, after the roller ring; 4, the gear; 5, block rollers; 6, drag roller; 7, pinion 11, motor;; composition 14, furnace and other parts, the other can take place based on user demand gas; 12, hot-air channel 13, the feed trough leavened; 8, the material part; 9; lifting plate; 10, reducer furnace, combustion chamber or supporting elevator, belt conveyor, quantitative feeder, cyclone, draft fan and so on. Sand dryer works: sand by the belt conveyor or bucket elevator to the hopper, then through hopper feeder by feeder pipe into the feed end. Feed pipe slope is greater than the natural inclination of materials, so that a smooth material flow into the dryer. A dryer cylinder is slightly inclined to the horizontal rotating cylinder. Material from the higher end of the added heat carrier from the low-end entry into countercurrent contact with the material, but also heat carrier and the material together and flow into the cylinder. With the rotation of the drum material by gravity to run to one end than the end. Wet material in the cylinder body to move forward the process, directly or indirectly, the heating medium to heat the wet material to dry, then the discharge end by the belt or screw conveyor sent. Contact surfaces in the cylinder body wall mounted copy board, its role is to copy the material up and planted, so that the material and increases airflow to improve the drying rate and to promote material progress. Heating medium is generally divided into hot air, flue gas. Heat carrier through the dryer after the cyclone will generally require gas trapped within the material brought down. To further reduce exhaust gas dust content, but also through the baghouse or wet dust collector and then put emissions.