Product Introduction:
1. Heating Method: The drum is equipped with an electric heating box filled with thermal oil and a thermal oil radiator pipe. The thermal oil is heated by electric heating tubes (the power of the electric heating tubes is determined by the drum's capacity) and circulated by a thermal oil circulation pump to heat asphalt through the drum's thermal oil radiator pipes.
2. Temperature Control: The start and stop of the electric heating tubes are controlled by two temperature controllers: 1. The asphalt temperature controller inside the tank, which primarily maintains the asphalt temperature within an appropriate range. It sets the upper and lower limits of the desired asphalt temperature; the electric heating tube automatically stops when the temperature reaches the upper limit and starts automatically when it drops to the lower limit. 2. The thermal oil temperature controller, which mainly ensures the thermal oil operates within an appropriate temperature range. The electric heating tube automatically stops when the temperature reaches the upper limit and starts automatically when it drops to the lower limit. This achieves automated production.
3. Localized Heating Technology
A small tank, isolated from the large tank (with a volume determined by the user's production requirements), is installed inside the asphalt tank. Most of the heat dissipation area (conductive oil electric heating tank, conductive oil piping) is set within this small tank. A portion of this small tank is referred to as the high-temperature zone, where the asphalt within reaches the required construction temperature in a short time and with minimal energy consumption, providing supply for production.
One, the area outside the high-temperature zone within the drum is referred to as the low-temperature zone. The low-temperature asphalt in the low-temperature zone is preheated by the surface of the high-temperature zone and a small portion of the heat-conducting oil coils outside the high-temperature zone. When the high-temperature asphalt in the high-temperature zone is pumped out, the preheated asphalt from the low-temperature zone enters the high-temperature zone synchronously and in equal quantity due to the vacuum effect.
2. This technology significantly reduces the heating time of asphalt, enhancing production efficiency; it maximizes heat utilization, reduces energy consumption; and completely avoids the repetition of asphalt heating and aging.
Section 3: Asphalt Loading and Unloading: Designed with a 3-inch diameter insulated gear asphalt pump, flow rate of 18 m³/hour (actual flow rate up to 20 m³/hour), equipped with an oil discharge channel, rotating asphalt pipe, three-way swing valve, asphalt pump, and oil discharge channel.
1. During unloading, switch the three-way ball valve to connect the asphalt pump with the unloading trough. Rotate the asphalt hose to align with the tank opening, then the asphalt tanker will discharge asphalt into the trough. Start the asphalt pump to inject asphalt into the tank through the rotating asphalt hose.
2. During loading, switch the three-way ball valve to connect the asphalt pump with the tank. Rotate the asphalt hose to align with the entrance of the asphalt tanker (or other asphalt equipment), then turn on the asphalt pump to inject asphalt into the tanker through the rotating asphalt hose.
3. The heat-insulating gear asphalt pump features reverse and preheating functions. After loading or unloading is complete, activate the asphalt pump's reverse function to empty the pipes and pump of asphalt. There's no need to clean the pump and pipes with diesel fuel. Even if there's a small amount of residual asphalt that causes sticking, it can be preheated with thermal oil, avoiding the inconvenience of stopping the pump for diesel cleaning and baking.
Material Configuration: The cylinder material is made of 5mm thick Q235B steel plate, 5cm rock wool for insulation, 0.5mm corrugated color steel for the outer layer, and GB/T8163 57mm×3.5mm seamless steel pipe for the heat transfer oil coils.
Five, Other Configurations: The tank is equipped with a distribution control box, a float ball rotary level gauge, a thermometer, a tank top platform, a ladder, and guardrails.
Six, Optional control room, placing electrical control boxes, asphalt pumps, thermal oil circulating pumps, unloading slots, and other equipment inside for a cleaner, more aesthetic appearance, and protection from rain and theft.
Section 7: This drum is compatible with emulsified asphalt equipment, providing a heat source for water heating in the emulsified asphalt equipment and for heating the asphalt pump and pipelines.
