Fly Ash Dryer

Fly Ash Dryer Machine Background Information:

◆ In the coal fired power plant, the fly ash (coal ash) has two discharging style: one is dry discharging style, the other is wet discharging style.

◆ In the rapidly developing cement industry, as the cement production mixing materials, the dry fly ash market is rather considerable. The physicochemical properties of wet fly ash are basicly same as the dry fly ash, but as there is big moisture content (maximum is amount to 45%), the wet fly ash (coal ash) can not meet the requirements of cement production. As a result, the wet fly ash (coal ash) can only be piled up as waste, and occupy many storage place, even pollutes the environment.

Then, how to dry the wet fly ash (coal ash) ?

After years' research, Sunco Machinery developed one new type rotary fly ash dryer. It has the advantages of low energy consumption, simple drying process, large drying capacity, etc. Fly ash dryer machine from Sunco Machinery can dry the wet fly ash (coal ash) from moisture content 45% to about 8% in large quantity directly.

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Fly Ash Dryer Machine Advantages:

◆ Low outlet temperature, long lifetime of dust cleaning system;

◆ Adopt new type lifting boards, and the output moisture content can be adjusted as customer's demand;

◆ High degree of automation, simple operation, stable working;

◆ Equipment investment needed is only 1/6 of the imported equipments. Low investment, creat profit quickly;

◆ Adopt gear transimission, small transimission power needed;

◆ Compared with single pass rotary drum dryer, Sunco Fly Ash dryer saves about 50% floor area, 60% electricity consumption;

◆ Broad fuel choice: coal, diesel, natural gas, waste wood, etc.

Fly Ash Dryer Machine Working Principle:

Fly Ash Dryer Machine mainly consists of Heat Supplying System,Material Feeding System, Drying System, Dried Material Discharging System, Water Vapor Exhaust System,Waste Flue Gas Processing System.

Burner and Hot Air Furnace generate the hot air, and the induced draft fan makes hot air into the dryer drum. The hot air not only heat the wet material, but also heat the dryer drum. Under the function of the lifting plate and special drum inner structure, the wet Fly Ash moves up and down to the discharging end of the dryer drum, during this process, the wet Fly Ash not only absorb the heat of the dryer drum, but also have strong heat exchange with hot air.

During this process, the humidity inside the wet Fly Ash is heated and evaporated into water vapor, and under the function of the high pressure draft fan, firstly the dry Fly Ash and exhaust air with water vapor goes into cyclone separator, and then the cyclone separator separates the dry Fly Ash from the exhaust air and water vapor. The exhaust air and water vapor come out from the top of the cyclone separator, and then pass through the draft fan, then goes into chimney, and finally goes into atmosphere. The dried Fly Ash come out from the outlet feeder which is installed on the bottom of the cyclone separator.

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