SG series of modified asphalt equipment suitable for the production of a variety of polymer modified asphalt, modifiers can be SBS, SBR, EVA, PE, etc. The equipment is mainly composed of swelling stirring, instantaneous temperature rise, measurement, grinding, finished product incubation, electrical control and other systems.
1. Swelling stirring system
This equipment adopts the circulating heating mode of channel steel heat conduction oil outside the swelling mixing tank. Through the specific design of the tank body and the stirring blade slurry, there is no dead Angle in the tank, and the tank is sufficiently stirred without plugging. The agitator adopts grease lubricated cycloidal needle wheel reducer, which has high output efficiency, strong anti-environment ability and long maintenance cycle. The tank is equipped with a pressure sensor designed by our company for high temperature and high viscosity liquid level detection. The human-computer interactive operation interface can visually observe the liquid level status in the tank. The tank body is equipped with temperature sensor, liquid level limiter, valve signal sensor and other functions, with high safety performance.
2. Heating system
The system consists of asphalt pump, frequency converter, temperature sensor, heat exchanger, and the corresponding of valve pipe, under the automatic constant temperature program control, according to the temperature sensor measuring the heat exchanger of import and export temperature difference comparison, through the PID closed-loop control, the asphalt pump the infinite frequency conversion adjustment, in order to achieve constant output of asphalt set temperature, asphalt airtight environment under elevated temperature in a short time, won’t produce asphalt aging phenomenon.
3. Metering system
The measurement of asphalt is measured by high precision asphalt flowmeter, and the mechanical data of flow meter counter is converted into impulse electric signal. The pulse signal received by PLC is calculated by high speed counter, and the set asphalt value is reached to stop the feed asphalt pump automatically.Modifier composed of metering tank and weighing module, weighing module of signals through the amplifier amplification, calculated by the program of PLC receives the amplified signal, set the required amount, to the set value automatically stop, auxiliary measurement and measurement, asphalt, according to the need to add the complete process automatically into the next feeding program.
4. Grinding system
Reasonable to add high viscosity modified asphalt mixture delivery pump with two high-speed shear colloid mill series, modified asphalt grinding system, a grinding after two grinding machine twice high-speed shear grinding can achieve ideal effect, specifically for high shear grinding motor, stator to design new asphalt mixture in the grinding chamber, z-shapge motion mode of asphalt mixture in a very short period of time for cutting and grinding, countless times modified asphalt refining and production efficiency.
5. Control system
The man-machine interactive operation interface developed by imported PLC+ force control configuration is adopted. The working interface includes asphalt temperature of matrix, real-time display of asphalt metering, real-time display of modifier metering, dynamic liquid level display, real-time display of auxiliary metering, and intuitive display of process flow production. The operation interface is clear and clear.Set a maximum density of asphalt modification, liquid level alarm control, mill pump and high speed shear grinding machine is equipped with frequency converter, through the PLC control automatic regulating current, the system data can be set, all production batch data automatically preserve, convenient query, production statements printing function, continuous production line production process, high production efficiency, stable and reliable performance.
6. Finished product incubation system
The prepared modified asphalt is stored in the finished product incubator tank, and is continuously stirred and inoculated. The stabilizer through the test formula is added to ensure the modified asphalt has good thermal storage stability.
