SPECO
Asphalt Mixing Plant
Vibrating Screen
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The ripple-flow type screen supported by an oval leaf spring at four places, offers effective large sieving area. The screen vibrates with a circular motion through the vibration shaft provided on its center and this prevents the screen from becoming clogged by aggregate particles. |
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Dryer & Burner Dryer
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SPECO rotary dryers and drum shells with its special design and high mechanical stability for arrangement of lifting flights generate maximum heat transfer while boosting production and reducing hot gas discharge for incredible fuel savings. Spring support type rotary ring completely prevents weight deflection caused by the drum expansion, thereby assuring smooth and steady rotation of the dryer. |
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Asphalt Tank & Kettle
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Standard bitumen tanks are horizontal and cylindrical type with heating coils and insulation cover heated by hot oil circulation. The asphalt in this cylindrical tank of indirect heating type is heated by hot oil circulation, which causes the asphalt, due to the absence of partial direct heating, to be heated uniformly and thoroughly and keep the constant temperature at all times. |
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Hot Oil Heater
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The asphalt in asphalt tank is maintained at a constant temperature by hot oil circulation heated indirectly in which thermal oil is heated by the burner and pumped through the tube coil section to the wide convention heating area. |
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Cold Bin & Feeder
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The truncated pyramid bin is for string aggregates. Bins of 4m3, 5m3, 6m3 and more capacity are available depending upon specifications and operating conditions. To feed the aggregate from the cold bin to the belt conveyor, one of the following feeders is selectively mounted under the cold bin. Apron feeder, Belt feeder, Reciprocating feeder, Vibrating feeder. |
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Auto Control Panel
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The major advanced features of this system include: |
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Distribution Board
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The star-delta operation can be controlled automatically by using the push button magnetic switches.The buttons are arranged in accordance with the procedures, thus preventing the operator from making an error. The thermal safety device and no-fuse breaker are attached to the magnetic switch and the main control circuit respectively, thereby preventing damage or seizure of the motor from overload. |
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Wet Cyclone & Dust Collection
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Wet cyclone (optional) is added to the dry cyclone system to minimize the dust nuisance around the plant. It completely prevents dust pollution in the environment, by removing fine dusts which the dry cyclone cannot collect. Also, by installing wet cyclone dust collector (V.O. Type) which is able to remove more dusts than single one, we can contribute much to the protection of environment. |
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