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Specifications
1. high thermal exchange efficiency2.quality of finished product is stable
3.simple structure, small loss
4.low consumption
Function of drying drum
Drying drum is one of the core components of asphalt mixing station, it use heat coming from the burner to heat cold aggregate containing water through heat exchange, it is aggregae dehydration, heating system components. Its performance directly determine the production of a complete set of asphalt mixing station, the quality of finished product, the reliability of a complete set of asphalt mixing station. The core parameter of drying drum is the heat exchange efficiency, it influence production of drying drum and equipment operation costs. Therefore, our company constantly improve the heat exchange efficiency of the drying drum, saves the energy consumption to a great extent for the customer to reduce customer’s use-cost.
Drying drum characteristics of Zoomline
1.The drum body adopt heat-resisting boiler plate
2.Internal material blade also uses boiler plate, bolt connection, long service life, quick and easy replacement.
3.Four-wheel friction drive, smooth transmission, low noise, long service life
4.Drive reducer adopts hard tooth surface reductor, carrying large, impact resistance
5."Butterfly" elastic connection plate through specially designed, stress is more even after the cylinder thermal expansion. Completely solve the problem of elastic plate heat cracking
6. Roller, and shaft of roller are made of high quality alloy forging steel, super long service life
7. Roller outer is made of high quality thermal insulation material, plus stainless steel packaging, insulation performance is good, appearance is neat and beautiful.
The thermal efficiency of drying drum
Core factors affecting the thermal efficiency of the drying drum is whether the drum can form complete and uniform material curtain. And the formation of material curtain is decided by the material blade’s structure and layout inside the drum. So design and layout of dry drum blade is a key element to affect the thermal efficiency of the drying cylinder.
Drying drum blade layout is generally consists of four areas that feed area, material curtain area, radiative zone, discharge area.
Increase of the drying cylinder thermal efficiency
The increase of thermal efficiency stand for lower energy consumption, namely reduce operating costs. Therefore, improving the drying drum thermal efficiency is very necessary. To improve the thermal efficiency and reduce energy consumption, the following aspects should be mainly considered.
1.Reduce the moisture content of cold aggregate. Practice proved that the aggregate moisture content is the main factor that influence the production of drying drum, so trying to reduce the aggregate moisture content is the effective method to improve the quality of asphalt mixing station, reduce the operation cost.
2.Reasonable design of drying drum internal material blade. Zoomline Machinery's material blade is consist of L (obtuse, acute angle), T, Z type and so on. After continuous exploration and practice, Zoomline company's drum thermal efficiency reached to the first-class level.
3.The choice of combustion engine. Company select the world famous brands combustion engine as supporting facilities, powerful guarantee the fuel combustion efficiency.
4.Seal of drying cylinder. Good sealing effectively reduce the ingress of external cold air, the cif drying drum sealing, high temperature zone use non-contact labyrinth seal, lossless element, greatly enhance the reliability of equipment operation, reduce the operation cost; low temperature feed end adopt combination of mechanical seal and labyrinth seal.
5.Draught(draft) system. Zoomline Company ‘s asphalt mixing station, damper of draught system is equipped with electric control (as the following picture), according to the change of aggregate feeding conditions, real-time adjust through air of drying drum. In order to achieve the best match of air flow, fuel consumption and heat.
Drying drum main parameter table of Zoomline Machinery CO.,LTD(counter fiow type)
Type |
Rated output(T/H) |
Drive power(KW) |
Insulation thickness |
Outlet temperature (°C) |
Remark |
ZAP-S40-D |
40 |
11 |
50 |
140-180 |
Aggregate moisture content of 5% |
ZAP- S60-D |
60 |
22 |
50 |
140-180 |
Aggregate moisture content of 5% |
ZAP- S80-D |
80 |
4x7.5 |
50 |
140-180 |
Aggregate moisture content of 5% |
ZAP-S100-D |
100 |
4x7.5 |
50 |
140-180 |
Aggregate moisture content of 5% |
ZAP-S120-D |
120 |
4x11 |
50 |
140-180 |
Aggregate moisture content of 5% |
ZAP-S160-D |
160 |
4x11 |
50 |
140-180 |
Aggregate moisture content of 5% |
ZAP-S200-D |
200 |
4x15 |
50 |
140-180 |
Aggregate moisture content of 5% |
ZAP-S240-D |
240 |
4x18.5 |
50 |
140-180 |
Aggregate moisture content of 5% |
ZAP-S320-D |
320 |
2x22 |
50 |
140-180 |
Aggregate moisture content of 5% |
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