Description:
A twin-shaft mixer is a mixing and conveying device featuring spiral blades arranged on two parallel, symmetrical axes. Once material enters the mixer through the feed port, the two parallel, symmetrical axes rotate in opposite directions, continuously stirring and mixing the material under the action of the spiral blades. The material then moves toward the discharge port, where qualified material is discharged. A water spray nozzle can also be installed on the mixer to wet the material. The twin-shaft mixer is ideal for mixing and wetting powdered and small particle materials. Its continuous feeding and discharging makes it ideal for continuous production lines requiring mixing and stirring processes.
Key Features:
1. Components: The twin-shaft mixer consists of a housing frame, a mixing mechanism, and a power transmission mechanism.
2. To ensure the strength and service life of the mixer housing, the twin-shaft mixer housing is rolled from Q355 wear-resistant steel plate. The mixer frame is welded from I-beams and channel steel to ensure the mixer's support strength.
3. The mixer's effective working length is extended to ensure more uniform mixing of materials.
4. The mixer cover and housing are bolted together, and a PTFE sealing strip is installed between the flanges to ensure a tight seal and prevent leakage.
5. The twin-shaft mixer's mixing mechanism consists of a mixing shaft and agitating blades. Bearings are installed at both ends of the mixing shaft for rotational support. The mixing shaft and agitating blades are designed to be removable for easy replacement of worn agitators.
6. As the primary working and power connection component, the mixing shaft is subject to high torque during operation. To fully ensure the strength of the mixing shaft, a large safety factor was selected during the design, with a larger diameter and wall thickness. 7. The mixing impeller, as the main working component of the mixing system, is subject to wear. After cutting with wear-resistant steel plates, the outer arc and surrounding areas of the mixing impeller are welded with wear-resistant electrodes to improve the strength and wear resistance of the impeller, extend the service life of the mixing impeller, and reduce the cost of spare parts.
8. The power transmission mechanism consists of a motor, belt, reducer, coupling, and gears. The design and selection are based on the operating capacity of the mixer.
9. The coupling uses an Oldham coupling to ensure high torque stiffness and compensate for radial, angular, and axial misalignment. The reducer uses a ZQ series reducer to ensure that the reducer's load capacity meets normal operating requirements.
10. To ensure high strength, hardness, and wear resistance, the transmission gear is made of cast steel and has undergone quenching and tempering. A dust-proof gear cover is installed on the outside of the transmission gear, and lubricating oil is filled inside the gear cover to prevent material dust from entering the gear gap and accelerating gear wear, while also providing lubrication and extending gear service life.
11. The twin-shaft mixer motor uses a variable frequency motor. During design, the motor safety factor is increased, and a higher-power motor is selected. The mixer is equipped with a frequency converter, and the user can adjust the speed of the mixing shaft by adjusting the motor frequency to meet the production requirements of different material types or different outputs.
Equipment parameter table:
Specifications and models | Blade rotation diameter(mm) | Spindle speed(r/min) |
Yield(t/h) |
Effective length(m) | Equipment power(kw) |
JSSZ-300 | 300 | ~63 | 3-5t | 1.3-3 | 11 |
JSSZ-400 | 400 | ~58 | 5-12 | 1.5-3.5 | 15/18.5 |
JSSZ-450 | 450 | ~58 | 10-15 | 1.5-3.5 | 18.5/22 |
JSSZ-500 | 500 | ~53 | 15-25 | 2-4 | 22/30 |
JSSZ-600 | 600 | ~53 | 25-35 | 2.5-4 | 37/45 |
JSSZ-700 | 700 | ~45 | 35-50 | 2.5-4 | 55 |
Keywords
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Twin-Screw Mixer
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