For those who are looking for an asphalt distributor truck, Howo offers a wide range of vehicles to choose from. Regardless of the model you select, you will find that it is capable of delivering a high quality asphalt product.
Circulate asphalt throughout the tank
An asphalt distributor tank is designed for storage and safe transport of oil-based materials. The tank should be clean and free of contaminants, and should be able to accommodate a sufficient amount of asphalt. When using the tank, it is important to ensure that the asphalt is kept at a constant temperature. To achieve this, a proper heating system is needed.
Asphalt distributors can be arranged in several ways. One type of system uses a separate engine mounted at the rear of the tank, which provides power to the pump. Another system is a hydrostatic distributor. In this case, the pump is supported by a detachable trailer. Both systems can be used for recirculation in the tank.
In one preferred embodiment, the plumbing network of an asphalt distributor includes circulating the asphalt in the tank during initial heating. A heat exchanger mechanism prevents the freezing of the asphalt in the circulating system. This feature is especially helpful in cold weather conditions.
When not spraying, the liquid asphalt in the pipeline is controlled by different combinations of valves. Some distributors also have a second spray bar.
Before filling the tank, it is necessary to visually inspect the tank. If the tank is not clean and well maintained, it may result in mixing of the asphalt emulsion.
It is also necessary to monitor the temperature of the asphalt. The ideal range of temperatures for emulsions is between 50degF and 180degF. You can do this by checking the temperature of a sample of the asphalt in the tank.
In order to properly monitor the temperature of the asphalt, it is recommended that you use a thermometer. You can get a dial thermometer, or an infrared thermometer. You should also cover the thermometer.
Turn all spray nozzles on and off
Asphalt distributor truck can deliver a consistent amount of asphalt onto the roadway, whether the truck is moving or not. This can be achieved through proper spray nozzles. It also helps to have an accurate tack coat application. The tack coat must cover at least 90 percent of the underlying surface.
To achieve this, an operator must be able to turn all spray nozzles on and off simultaneously. Also, all nozzles should be free from debris. If not, they could cause a non-uniform tack coat application.
During the tack coat application, the operator should check to see that all spray nozzles are working properly. If there are any issues, they should be fixed.
One of the most important equipments for an asphalt distributor is the pressure gauge. It can greatly affect the quality of the job. You should check that your distributor has a current calibration certificate. Some models include a thermocouple inside the tank. Another good device is an infrared thermometer.
The temperature of the asphalt can be monitored using the thermometer. Ideally, the range should be below 100 deg F and at least 400 deg F. However, some distributors have dial-type thermometers outside the tank.
If you use a hand sprayer, you can reach narrow areas that may not be covered by a distributor. Hand-sprinklers are equipped with shut-off valves. These valves allow you to shut off one or several nozzles to spray irregularly-shaped sections.
The temperature of the asphalt must be set according to the type of asphalt material you are using. For instance, seal coating work might require more asphalt binder outside the wheel paths. In addition, it is a good idea to keep the tank clean. Otherwise, mixing of different types of asphalt can occur.
Proper hoses, joints and pipes
An asphalt distributor can be a powerful tool, but its components must work together in harmony. The proper use of hoses, joints and pipes can help ensure a successful job.
A power-driven pump is necessary to circulate the asphalt. It is also crucial that you have the right size nozzle to produce a good spray. There are several varieties on the market.
For example, the deflector nozzle will create a straight edge for your asphalt coverage. Also, it should be noted that a proper heating system is required to maintain a constant temperature. This is important since adding hot asphalt to the tank will result in steam, which can explode.
As for the hose, it is not designed to be used in a permanent piping application. To increase its useful life, it should be subjected to routine testing. Several questions should be asked during a service call to reduce the risk of a failure.
Some distributors even have a second spray bar, commonly called the wheelpath bar. It is not a bad idea to have more than one, but only one should be in use at any given time.
A digital-measuring instrument is a must, especially since it is needed to meet specifications. It is recommended that the manufacturer provide a certificate of calibration. In addition, it is prudent to have a reputable company do a thorough sanitization of the unit.
Other components to check out include the pressure gauge. This is not just a gimmick; it is a major influence on the quality of your job. Ideally, the distributor should operate at the highest pressure possible without atomizing the asphalt. The correct engine RPM is also essential to achieve the desired binder application rate.
Maintain a constant asphalt distributor tank temperature
The Howo asphalt distributor truck is one of the most popular asphalt trucks in the world. It features an insulated tank, power-driven pump, and an automatic control system. This enables the machine to spray hot asphalt onto the roadway.
Besides, the distributor has an electric heating system, which can maintain the temperature of the asphalt binder at the correct level. Electric heat can also improve the productivity and safety of the machine.
To ensure proper spreading, the machine should be well-maintained. The distributor must be calibrated periodically. Calibration can be done by using a pressure gauge, a sample of the asphalt, or weight tests.
Before filling the asphalt tank, make sure it is clean. A dirty tank may cause the asphalt to harden. Also, a lot of water could build up inside the tank, which can lead to explosion.
A properly insulated tank is necessary for maintaining the asphalt's temperature. A thermometer is a good way to monitor the asphalt's temperature. Some models are equipped with a dial thermometer that is mounted outside the tank. If the distributor is equipped with a thermocouple, it can be inserted into the tank.
Some models can even be controlled remotely. With this type of distributor, the operator can adjust the speed of the vehicle according to the road conditions. In addition, it has an anticorrosion capability.
For optimal performance, all components of the distributor should work properly. Proper alignment of the nozzle is a vital part of its performance.
Regardless of the distributor model, it is recommended to keep the truck on a flat, level surface. To prevent the mixing of different types of asphalt, the tank unit should be clean.
Hand sprayer
If you are looking for a truck sprayer to use on your road construction project, you may want to consider a Howo Asphalt Distributor Truck. It has been designed to offer the best possible performance while being efficient and cost-effective.
For optimum performance, a distributor should be able to deliver a consistent amount of asphalt during a shot. In addition, the distributor should deliver a uniform spread of asphalt on the roadway.
To accomplish this task, the distributor must have the proper nozzles. The nozzles are designed to provide an even, fan-shaped spray pattern. They also come in different size openings, which enable the operator to apply a variety of asphalt rates.
The temperature of the asphalt should be monitored. Some models have a thermocouple inside the tank, while others have a dial thermometer mounted outside the tank.
When working on seal coat work, the pump speed and pressure should be adjusted to match the application rate. This can be done by using different nozzle sizes in the wheel paths.
Once the proper nozzles are installed, the spray bar should be properly adjusted. Most bars are hinged at either end and can be folded up when not in use.
The height of the spray bar should be measured from the bottom of the nozzles to the pavement surface. A typical distributor spray bar is 12 feet wide. While measuring, ensure that the tank is empty and that the bottom of the nozzles are at the correct level.
As the bar rises, the coverage increases. Each nozzle can reach a height of up to six meters.
An intelligent control system can be installed to provide automatic spraying. A touch screen display in the cab can record the amount of spray that has been applied.
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