Model Selection

Asphalt pavement has high temperature stability and low temperature crack resistance with good water stability. These characteristics make asphalt pavement less likely to flow and deform at high temperatures in summer, and less possible to crack at low temperatures in winter, while against moisture damage.  Asphalt pavement tends to be stable in summer mainly because of its ability to resist flow deformation. In hot seasons, due to repeated vehicle driving, asphalt pavement may suffer from waves, drifts, rutting, congestion and other damages. However, the high-temperature stability of asphalt pavement makes it less susceptible.As for low-temperature crack resistance, this means that asphalt pavement is less likely to crack, sink, and dent when the temperature drops. Since the stiffness of asphalt pavement increases and the deformation capacity decreases as the temperature drops, under the action of external loads, part of the stress has no time to release, and stress may accumulate instead, preventing the pavement from cracking, sinking, and denting. Asphalt pavement also has good water stability. Even in rainy seasons or rainy areas, moisture is less likely to penetrate and damage the pavement structure, keeping the pavement stable.   In general, asphalt pavement is stable with a long lifespan thanks to its excellent high temperature stability, low temperature crack resistance and water stability. These properties allow asphalt pavements to withstand a variety of climatic conditions, traffic pressures and still remain in good condition. It is necessary to conduct proper maintenance so as to keep up with the good work.   D&G Machinery provides clients with efficient and reliable asphalt mixing plants in various configurations, which can meet the requirements of asphalt pavement in different projects. For more information and customized solutions, please do not hesitate to contact us.

Asphalt mixture recycling machine is a kind of equipment used to recycle waste asphalt mixture. Its working process mainly consists of the following steps.1. Crushing: First, the waste asphalt concrete will be fed into the crusher for crushing. The crusher breaks waste asphalt mixture into smaller particles for subsequent processing.2. Separation: The crushed asphalt mixture particles will be separated through a vibrating screen, which will separate and classify the particles into different grades based on their size for further processing.3. Washing: The separated asphalt mixture particles will be sent to the cleaning machine for washing. The equipment will use the water flow and the screen to remove the impurities and pollutants on the surface of the particles, ensuring the quality of the recycled asphalt mixture.4. Reproduction: The cleaned asphalt mixture particles will be sent to the recycling equipment for reproduction. Recycling equipment heats the pieces to a temperature that reactivates the bitumen inside, and then mixes it with new bitumen to form reusable asphalt concrete.5. Finished product processing: Finally, the recycled asphalt mixture will be sent out of the machine via conveyor belts or other means, and further processed, such as cooling and packaging for transportation and use.Through the working process above, the asphalt mixture recycling equipment can effectively convert the waste asphalt concrete into reusable materials, and realize the recycling of resources and environmental protection.

Asphalt mixing plant site that occupies a very important position in the asphalt concrete pavement construction. Significantly influenced companies in the section of the road construction quality and construction costs. Different positions mixing station sitting, construction quality and construction costs are correspondingly different. Station location not only can determine the asphalt pavement construction progress, but also can largely determine the quality of asphalt.In the asphalt mixing plant sitting process, should highlight the main factors affecting site selection. Sitting of asphalt mixing plant has the following factors:1. Asphalt mixing plant and paving the scene in the distance.2. Asphalt mixing plant and materials in the distance.3. Transport conditions. If the situation is not clear when the road transport, shipping time will be spent too long during transport, and asphalt temperature will loss greater.4. Electric power supply. Determines the mixing station power supply is operating correctly.5. The available land area size. Because of the raw materials to be stacked with a certain space, the normal operation of vehicles need enough space, all asphalt mixing plant requires a large enough floor space to meet these requirements.6. Sites of natural conditions, station should be selected environmental and dry place.7. Environmental issues, the main consideration of asphalt mixing plant away from residential areas or densely populated areas, which can avoid causing air and noise pollution.

Generally, asphalt mixing plant is consisting of two types, batch type and continuous type; each type has its advantages. Then, how to choose the right one for your project? Here are some tips.The key factors to choose a right type of asphalt plant are project requirements. In detail, capacity and finished asphalt quality matters. D&G Machinery has helped a lot of clients both domestic and abroad make right decisions on asphalt plant type, and we are glad to share them. First, let’s take a look at the characteristics and advantages of each type.Batch Type Asphalt Mixing PlantAt present, batch type asphalt mixing plant is the most popular due to the below: 1. Accurate weighing, precise screening and batching. Therefore, the finished asphalt mixture is of good quality.2. High efficiency, a single batch cycle is about 45 seconds and large capacity.3. The recipes of asphalt mixture produced by a batch mix asphalt plant can be adjusted easily, thus it produces various kinds of asphalt mixtures.4. It has wide applications, including highways, airports, national roads, city roads and country roads, etc.5. Easy operation. Nowadays, most batch mix asphalt plant is automatically controlled.Continuous Asphalt Mixing Plant1. As is known by its name, a continuous mixing plant will produce asphalt mixture in a consistent run once it is started. Aggregate drying, heating and mixing are all taken place in a drum. Compared with a batch plant, a continuous asphalt plant is simple in structure because it has no mixing tower and elevating system; therefore, it required less land, less maintenance cost. 2. However, due to lack of precise screening, it requires precise control over aggregate feeding at the very beginning of a production.3. A continuous asphalt plant required less initial investment compared with a batch mix one (with same capacity).WeighingBatch type asphalt mixing plant: weighed by weight, each different sizes aggregate is metered independently, thus it is much preciser.Continuous asphalt mixing plant: weighed by volume, which is relatively not so precise.MixingBatch type asphalt mixing plant: usually materials (aggregate, filler, bitumen, additives if necessary) are mixed in double-axles mixer, and mixing is conducted by batches, therefore, the mixing performance is even and homogeneous. Besides, the batch circle can be shortened or extended according to finished asphalt quality. What’s more, the way can be adjust very quickly and easily. All in all, a batch mix plant is an ideal equipment for high quality and special asphalt mixtures such as porous pavement, polymer modified asphalt pavement, emulsified asphalt pavement and RAP materials.Continuous asphalt plant: the mixing must be consistent, steady and long enough.Finial DecisionThe aforesaid tips are just for reference. The final decision is up to client. But in general, a batch mix asphalt plant is best for a large and medium-sized road construction project which requires high quality asphalt mixture. While a continuous asphalt plant is suitable for small and medium-sized road construction project which has tight investment.

Q: How is your products packaged?A: As a professional asphalt mixing plant manufacturer, we have professional packaging process and control.

For example, locate the reject bin，First make sure the air pressure is enough，the position of the induction switch in the reject bin，Rotate the bin selection switch to the reject bin position ，confirm that the bin selection in place signal is activated，then turn the skip mode switch to the "manual" position，Press and hold the skip up switch, then the skip moves slowly until the induction switch of the reject bin is sensed and stops , At this time, release the skip up switch, press the skip stop knob, and turn the mode selection switch to the "memory" position, At this time, the system has memorized the position in the reject bin, Then loosen the skip stop knob, press and hold the skip down switch to move the skip to the position under the mixer.

The medium pressure burner uses compressed air, while the high pressure burner does not；The inlet and outlet pipes are different；The pressure of high pressure pump is different.

Standard CalibrationStandard Calibration uses two points,zero and span point.Steps are as follows:[System Setup]→[Scale Setup]→[Set Capacity].Set the scale capacity in this item.[System Setup]→[Scale Setup]→[Set Capacity].Set the increment in this item.[System Setup]→[Scale Setup]→[Select Units].Select the scale unit in this item.1.Adjust ZeroStep 1:Access to the zero capture menu, [System Setup]→[Scale Setup]→[Adjust Zero].Step 2:Press Enter key, the IND320 displays “Adjust Zero?”.Press Select key to choose “√”，and then press Enter key to perform zero adjust.Step 3:The IND320 displays “Empty?” to inform the users to empty the scale.Step 4:Press Enter key,the IND320 performs zero capture.The IND320 displays “Adjust Zero 20%”.The guage ‘20%’, ‘40%’...... ‘100’ indicates the status of the adjustment.2.Adjust SpanStep 1:Access the span capture menu, [System Setup]→[Scale Setup]→[Adjust Span]Step 2: Press Enter key, the IND320 displays “Adjust Span”.Press Select key to choose “√”，and then press Enter key to perform span adjust.Step 3:Press Enter key,when the IND320 displays “Load Weigh”.Input the load weight in “Input Weigh 000000”,and press Enter key to perform span capture.1.Adjust ZeroStep 1:Access to the zero capture menu, [System Setup]→[Scale Setup]→[Adjust Zero].Step 2:Press Enter key, the IND320 displays “Adjust Zero?”.Press Select key to choose “√”，and then press Enter key to perform zero adjust.Step 3:The IND320 displays “Empty?” to inform the users to empty the scale.Step 4:Press Enter key,the IND320 performs zero capture.The IND320 displays “Adjust Zero 20%”.The guage ‘20%’, ‘40%’...... ‘100’ indicates the status of the adjustment.2.Adjust SpanStep 1:Access the span capture menu, [System Setup]→[Scale Setup]→[Adjust Span]Step 2: Press Enter key, the IND320 displays “Adjust Span”.Press Select key to choose “√”，and then press Enter key to perform span adjust.Step 3:Press Enter key,when the IND320 displays “Load Weigh”.Input the load weight in “Input Weigh 000000”,and press Enter key to perform span capture.1.Adjust ZeroStep 1:Access to the zero capture menu, [System Setup]→[Scale Setup]→[Adjust Zero].Step 2:Press Enter key, the IND320 displays “Adjust Zero?”.Press Select key to choose “√”，and then press Enter key to perform zero adjust.Step 3:The IND320 displays “Empty?” to inform the users to empty the scale.Step 4:Press Enter key,the IND320 performs zero capture.The IND320 displays “Adjust Zero 20%”.The guage ‘20%’, ‘40%’...... ‘100’ indicates the status of the adjustment.2.Adjust SpanStep 1:Access the span capture menu, [System Setup]→[Scale Setup]→[Adjust Span]Step 2: Press Enter key, the IND320 displays “Adjust Span”.Press Select key to choose “√”，and then press Enter key to perform span adjust.Step 3:Press Enter key,when the IND320 displays “Load Weigh”.Input the load weight in “Input Weigh 000000”,and press Enter key to perform span capture.

1.Install the load cells according to installation regulations including making the installation surface horizontal.To make the accuracy in measurement of load cells.Good rigidity of load cell support base is necessary in case of the distortion of the support base and a junction box for adjustment of angle differences while more than one load cell is in use.2.In theory, the load just needs to be greater than 20% of scale capacity to perform calibration,which enhances the flexibility and reduce the consumption of physical strength in calibration.3.Because of the difference of the application environment and mechanical construction,users need to place appropriate load to perform calibration,in order to assure the linearity of the weighing system.

Enter into the next when press key. Press  key to display [on], and then go into parameters setting menu. On entering the state of parameter setting, [F1] firstly display on displayer.Start measuring range setting when press  keyFor example: 3T scale will be set as 3000(Kg as unit). Set the numerical value to  with the above way. Then press  key for confirmation.Division value setting , Press  key to choose F1.2 on displaying F1.1  It is set to 1 if aggregate scale; it is set to 0.1 if filler scale and bitumen scale. And press  key for confirmation. Then press  key to F1.3 for selecting linearity calibration way.This is to select linearity calibration way. “0” stands for two- point sampling and “1”stands for three-point sampling. We choose “0” here. Then press  key to choose  for scale full calibration. of Zero calibration will firstly be seen when press  key.Then check the impurity and scratch at the round of scale body, if no, press  key to confirm the calibration procedure of weighing terminal. Then  key appears, which means loading calibration.Press  key to add relevant poise on the scale (400-2000KG for aggregate scale; 40-200KG for filler and bitumen scale), then adjust the corresponding number. The detailed procedure is as following: select digital place through  key, adjust numerical value through  key. (Set 500KG as example) Press  key to confirm the calibration procedure of weighing terminal. Display as following after calibration , Calibration procedure is over by this.

（1）D-Direct On Line，Advantages: less starting equipment, simple starting mode, low cost, Disadvantages: the starting current is large, affecting the service life of the motor and unfavora to the stable operation of the power grid 。（2）YD-Star-Delta，Advantages: small starting current and small starting torque，Disadvantages: can only be used for delta connected motors。（3）VFD，Advantages: small starting current, wide application range and simple operation，Disadvantages: high cost, complex internal structure

D-TIME  Start up delay time, generally set to 5-15 seconds.O-TIME  delay time of over-current action , generally set at 5-8 seconds.LOAD   Overload current，Computing Formula(2×In（Rated current）×1.1÷CT（Transformation ratio of current transformer) 。RESET   Reset button, manual reset after relay action.

500V500MΩ.

40% at least  ,  80% at most .