Focus on heavy equipment
Focus on heavy equipment
Fly ash dryer is also known as the three-layer drum dryer, widely used in drying fly ash, bottom ash, coal ash, pond ash, etc.
Fly ash dryer is also known as the three-layer drum dryer, widely used in drying fly ash, bottom ash, coal ash, pond ash, etc.
Fly ash is a byproduct of coal combustion, it is formed when it is burned in boilers to produce steam for industrial applications and electricity generation, such as in power plants. Fly ash contains heavy metals such as arsenic, mercury, lead, etc., which can cause environmental problems. With the help of a rotary fly ash dryer, we can achieve safe reuse of fly ash.
Fly ash dryer is also known as the three-layer drum dryer, is developed and manufactured on the basis of the single drum dryer. When designing, we consider factors such as initial and final moisture content, product temperature, drying air temperature, air velocity and material residence time in the dryer. At present, the three-cylinder dryer produced by Jiutian company has mature technology, and has a good drying effect on fly ash, coal ash, pond ash, bottom ash, etc., widely used in construction, building materials, water and electricity, etc. industry. Jiutian fly ash dryer has the characteristics of compact structure, small footprint, reliable operation, low energy consumption, high thermal efficiency, good drying effect, and operator saving.
Fly ash dryer is used for drying fly ash, pond ash, coal ash, bottom ash, etc.
Conveyed by belt conveyor or bucket elevator to the hopper, the ash comes into the feeding end of the dryer by a feeding device through a feeding pipe; the obliquity of the feeding pipe should be greater than that of the fly ash, so the fly ash can slip into the dryer easily; the wet fly ash and hot air can enter into the dryer from the same feeding end of the dryer, which is called co-current air flow drying process; or they can be fed into the dryer from different ends of the dryer, which is called count-current air flow drying process; as the dryer rotates, the ash inside moves forward from the feeding end to the discharging end of the dryer, and during this time, wet ash is being dried by the hot air; then dried materials are discharged and conveyed away by belt conveyor or screw conveyor.
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1. The fly ash dryer is made of alloy steel plate manufacturing,the wear-resisting 3-4 times of ordinary steel , the service life of the equipment is more than 10 years.
2. Material initial moisture content 15%, final moisture to ensure below 0.5-1%,which is the preferred products of the cement plant, GGBS and dry mortar production line.
3. The fly ash dryer thermal efficiency is as high as 80%, at the same time, the total power is low, 40% energy saving.
4. The fuel can be adapted to the fly, oil, gas,it can be dried under 20-40mm particles material, aggregate, powder material.
5. The fly ash dryer covers an area of about 40% lower than single drum dryer and civil investment reduced by about 50%.
6. No air leakage phenomenon, solved the sealing difficulties, modular units, installation is convenient.
7. The discharge temperature is < 50 degrees,which can be directly feed libraries, without cooling.
| Model(m) | Output(t/h) | Coal consumption(kg/t) | Total power(kw) | ||
|---|---|---|---|---|---|
| River sand | Fly ash | Mineral slag | |||
| Φ2.0×5 | 12-15 | 6-7 | 10-13 | 10-12 | 4kw×2 |
| Φ2.2×5 | 14-18 | 7-9 | 12-15 | 10-12 | 5.5kw×2 |
| Φ2.5×5 | 23-28 | 10-13 | 20-22 | 10-12 | 5.5kw×4 |
| Φ2.8×6 | 30-35 | 15-18 | 25-30 | 10-12 | 5.5kw×4 |
| Φ3.0×6 | 35-40 | 18-20 | 32-35 | 8-10 | 7.5kw×4 |
| Φ3.0×7 | 40-45 | 20-25 | 35-40 | 8-10 | 7.5kw×4 |
| Φ3.2×7 | 45-50 | 25-30 | 40-45 | 8-10 | 11kw×4 |
| Φ3.2×8 | 50-55 | 30-35 | 45-50 | 8-10 | 11kw×4 |
| Φ3.6×8 | 60-70 | 35-40 | 60-65 | 6-8 | 15kw×4 |
| Φ3.8×9 | 70-80 | 40-45 | 70-75 | 6-8 | 15kw×4 |
| Φ4.0×10 | 90-100 | 45-50 | 80-90 | 6-8 | 18.5kw×4 |
| Φ4.2×8.5 | 80-100 | 45-60 | 80-90 | 6-8 | 18.5kw×4 |
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