Leave Your Message

Laboratory Digital Automatic Water Cooled Asphalt Centrifugal Extractor

The fully automatic asphalt extractor is a device used for rapid determination of asphalt content (oil stone ratio) in asphalt mixtures, widely used in highway pavement construction enterprises, testing units, scientific research departments, and colleges and universities. Here is its detailed description:

Working principle

The fully automatic asphalt extractor adopts centrifugal separation method to separate asphalt, mineral powder and aggregate in asphalt mixture by high-speed centrifugal force. The specific process is as follows:

1. Place the asphalt mixture sample into a centrifugal separator and soak it in a solvent (such as trichloroethylene).
2. Start the centrifugal separator and use centrifugal force to separate asphalt from the mixture.
3. The separated asphalt and solvent are filtered through filter paper, and the mineral powder and aggregate are collected.
4. Through the recycling system, the solvent is recovered and reused, while the mineral powder and aggregate are dried.
5. Finally, calculate the asphalt content by weighing.

    Structural composition

    Chassis: the supporting part of the instrument.

    Centrifugal separation system: Centrifugal Extractor is composed of centrifugal shaft, centrifugal cylinder, centrifugal shaft sleeve, collecting tank, dual-speed motor, high-speed transmission flat belt, etc.

    Electromagnetic vibration screening system: Centrifuge Machine is composed of vibrating electromagnet, conical screening seat, adjustable tightening handle, sieve, spray cover and locking nut, etc.

    Solvent supply system: Bitumen Extraction Test is composed of liquid supply pipe, solvent pump, electromagnetic reversing valve, pump infusion pipe, extraction pipe and cleaning pipe.

    Solvent recovery system: Asphalt Automatic Extraction is composed of solvent chamber, solvent recovery chamber, condensation box, etc. to realize the recycling of solvent.

    Main features

    High degree of automation: Centrigufal Extractor Machine  automatically completes the processes of screening, solvent recovery, mineral powder recovery, etc. to improve work efficiency.

    Easy operation: Large screen LCD display, recovery status graphic display, clear and intuitive operation interface.

    High extraction accuracy: Centrifuge Extractor can meet the needs of various asphalt mixture extraction tests, and the extraction error can be controlled within 0.1%.

    Wide range of application: Extractor is suitable for construction units, laboratories, scientific research units and teaching institutions in the highway transportation industry.

    Features of this machine

    1. For the test with fiber or rubber powder and additives, this test will not affect the determination result of asphalt dosage.

    2. For asphalt mixture: the collection and screening of stone, separation and recovery of mineral powder, separation and recovery of asphalt, and separation and recovery of industrial trichloroethylene for washing mixture are completed at one time.

    Main technical parameters

    Parameter Water-cooled bitumen extraction instrument YR-D Cooled bitumen extraction instrument YR-ID
    Extraction capacity 1000-5000g 1000-5000g
    Sampling Accuracy 0.10% 0.10%
    Centrifuges Low speed: 5000r/min speed 12000r/min Low speed: 5000r/min speed 12000r/min
    Heating power 1600W 1600W
    Motor Power 750W 750W
    Pump power 370W 370W
    Cooling power Circulating water cooling 2000W
    Extraction time 20-40min / times 20-40min / times
    Heating oven temperature Can be set from room temperature to 300 °C ± 5 °C (adjustable) Can be set from room temperature to 300 °C ± 5 °C (adjustable)
    Operating ambient temperature 15 °C ~ 50 °C 15 °C ~ 50 °C
    Screening aperture 0.075,0.15,0.6,2.36, Empty sieve 0.075,0.15,0.6,2.36, Empty sieve
    Power Three-phase 380V ± 10% Three-phase 380V ± 10%
    Centrifugal vibration box dimensions 550 * 850 * 1280mm 550 * 850 * 1280mm
    Solution tank Dimensions 700 * 720 * 1100mm 700 * 1050 * 1060mm
    Control cabinet dimensions 520 * 640 * 970mm 520 * 640 * 970mm
    Total weight 300kg 350kg