Asphalt Hot Recycled Mixing Plant

This is CXTCM Asphalt Hot Recycled Mixing Plant, the model is PRD500, RRD1000, PRD1500 and PRD2000. The capacity is from 50T/H to 160T/H. It is suitable for different types of different output of asphalt mixing plant, not only can be matched with our own products, but also can be matched with other brands of asphalt mixing. There are three technical keys for CXTCM Asphalt Hot Recycled Mixing Plant: Old materials heat up to 140℃ above; Prevent the adhesion of old materials; Match with the original asphalt plant.

Asphalt Hot Recycled Mixing Plant can not only use the old material that road milled down, save energy, but also reduce the pollution of the old material to the environment, which is a product with high economic and social benefits.

Asphalt Hot Recycled Mixing Plant Parameter (Specification)

Reserve the right to change the parameters without prior notice.

Asphalt Hot Recycled Mixing Plant Production Process Diagram

Asphalt Hot Recycled Mixing Plant Details

1-Pre crush and screen system

The user can select suitable pre crushing and screening system for Asphalt Hot Recycled Mixing Plant. If the user supplied milling material, that can choose simple A type independent milling material pre crushing and screening system; if the big old material is provided by the user, you can choose B type independent joint pre crushing and screening system.

This two systems can pre crush and screen effectively for all kinds of reclaimed old material , and to reduce the destruction for the original stone particle size in the crushing process , and to ensure the accuracy of grading for the production of renewable materials.

2-Cold material feeding system

Conventional configuration is two cold hoppers (special circumstances can be with three), adopts continuous weighing method, it's more accurate than the volume type weighing, thus ensuring the grading accuracy of the finished material.

Diesel spray system can be installed in the cold hopper according to the user’s requirements, to prevent and reduce adhesion of old materials.

3- Old material elevator

Adopts plate chain structure, It is more stable than the anchor chain in work. The bottom of each lifting bucket adopts arc structure, and is not easy to adhere to the old material.

According to the requirement of the user, to install the diesel spray device inside to prevent and reduce the adhesion of the old material.

4-Dryer drum material feeding method

Adopting lateral bottom feeding mode to avoid the disadvantages of the top feeding mode. The top feed can make small material which with high bitumen content is directly blown to the rear of the dryer drum and not passed full heating, it's easy to stick on the equipment. Another a part of smaller material will be directly into the flue channel, stick on the fan's impeller, so that cause the failure of the draught fan.

There is an alarm device at the inside of the feeding mouth of the elevator, which can automatically alarm and lock the device once the material was block or accumulated too much, so as to avoid accidental occurrence.

5-Heating method

Adopts downstream non contact heating way, there is a fire combustion chamber between the burner and the dryer drum. The old material can be heated to 140 Celsius degree above by convection radiation principle.

In the combustion chamber, the rotary heating method can change the hot spot frequently, thus ensuring the service life of the refractory material. The heat insulation barrel inside adopts modular casting, the refractory materials can be resistant to high temperature of 1500 Celsius degree above. It can be replaced separately, no need to replace the whole one. it's not only save the cost, but also reduce the maintenance time.

Adopting a special burner, low press and low noise compressed air atomization principle, the flame does not directly contact with the refractory cement, protect the combustion chamber. At the same time, it makes the heat source closer to the heat exchange area and improves the heat efficiency.

The burner has the function of automatic withdrawal.

Special thimble type burner, which flame diameter is more suitable for combustion chamber and the dryer drum‘s size, effectively avoid to damage the combustion chamber and the dryer drum, improving the thermal efficiency.

6- Dryer drum

Using increase the diameter and length of the dryer drum, to increase the running time of the old material in the dryer drum.

Adopting flexiable lifting device. The flexible lifting device can prevent the old material from sticking due to the melting of asphalt at the same time

7- Hot Bin

Adopting entirety with rock wool insulation. Using heat conduction oil to heat the cone of bin. Makes easy stick inclined wall keeps more heat, prevent fine material adhere to the silo wall.

The timing and automatic diesel spraying device is arranged in the interior of the bin, which can prevent the adhesion of the old material.

The double asymmetric door structure, to open and close the door at the different time to solve the discharging door adhesion problems, but also improves the accuracy of measurement.

8- Mixer material feeding method

Inclined chute feeding, the conventional feeding method with closed structure. There is heat conducting oil heating insulation outside, to ensure the shell always maintain the high temperature state. At the same time, the diesel automatic spray device to prevent adhesion of old material.

The belt conveyor can be combined effectively according to the different site, especially when asphalt hot recycle mixing plants joint with the original asphalt mixing plants. It is very flexible and convenient. At the same time, install the sealing device and automatic diesel spray device, reduce heat loss and prevent the buildup and adhesion of old material

9- Control system

In production process, when the proportion of hot recycled materials is increasing, the output for the original asphalt plant will be required to reduce. It will affect the normal production of original asphalt plant.

We set up specifically in the control system with a recycle material production mode. Start this mode, the original asphalt plant‘s production efficiency will be automatically reduced, make sure the original asphalt plant is always in a normal state.

Asphalt Hot Recycled Mixing Plant Feature and Application

CXTCM relies on the science and technology industry support plan of "Research and development of key technologies and equipment for thermal regeneration of waste asphalt mixture" in the early stage, and cooperates with the "Research and Development Center of Pavement Machinery" jointly built by Chang 'an University. And through the sensor technology to optimize the ratio and remote control technology to develop high performance, high yield of large asphalt hot recycled mixing plant are realized the localization.

The price of similar foreign products is reduced by 50%, which can greatly reduce the investment cost of the construction side and the cost of highway construction.

Due to high-quality, stable performance, thoughtful customer service, as well as significant experience, CXTCM has sold 500 sets more of Asphalt Recycled Mixing Plant so far.

Asphalt Hot Recycled Mixing Plant is high economic and social benefits.