Equipment Overview

Mixers are suitable for aeration tanks in industrial and urban sewage treatment plants, generating strong low shear flow, which can be used to produce water for the cycles of nitrification and denitrification and phosphorus removal. With the advancement of technology, the*** of mixers has become increasingly evident. The internal oil-lubricated sealing system of the mixer ensures reliable sealing and is not contaminated by sewage.

By integrating the sliding friction mechanism, enhance the dust-proof design of the lead positioning double-slip wheel bearing, ensuring the wheel rotates freely without friction at the side edges; the design of the wheel assembly with moderate movement of the device's trailing fin eliminates self-locking with the guide rail, ensuring smooth operation; thirdly, the basic load capacity of the agitator, with the equipment's own weight supported by the base, operates stably, avoiding vibrations caused by traditional guiding methods.

Miniature Submersible Transmission Box, compact, smooth transmission, small size, light weight, ***, low failure rate, long lifespan. Guided-base design, not only improves the steering mechanism but also couples vibration-damping bearing support, enhancing sliding stability, with simple and reliable support, strong resistance to shock loads, and lateral offset-induced. 6. Standard and *** configurations available, catering to user needs. The cable routing of the agitator is equipped with anti-tug protection devices. This device consists of two parts: one is the underwater entry seal auxiliary protection mechanism, which protects the entry seal from damage due to pulling; the other is the water-resistant cable opening mechanism, ensuring cable protection remains intact, not compromised by the impeller's cuts. 8. The agitator's truss is equipped with water devices. These devices are designed to meet the needs of the market and users in both China and developed countries abroad.

Assist users in selecting scientifically configured and reasonable power; The glass fiber reinforced plastic impeller of the mixer, high-strength composite materials, forming a strong, ***, water-resistant, lightweight, ***, geometrically symmetrical, and dynamically balanced, suitable for both domestic and international ***. In wastewater treatment plants, mixers and submersible mixers agitate fine sludge containing suspended solids, process wastewater, industrial processes, and water, creating capabilities for mixing functions, preventing sludge from settling, playing a crucial role in municipal and industrial wastewater treatment processes.

Product Categories

Mainly includes the following types:

① Propeller stirrer - Composed of 2 to 3 propeller blades (Figure 2), operates at a high rotational speed, with the peripheral speed of the blade edge typically around 5 to 15 m/s. The propeller stirrer primarily generates axial liquid flow, producing a large circulation volume, and is suitable for stirring low viscosity liquids (＜2 Pa·s), emulsions, and suspensions with less than 10% solid particle content. The stirrer's shaft can also be inserted horizontally or diagonally into the trough, at which point the circulation loop of the liquid flow is asymmetric, which can increase turbulence and prevent liquid surface indentation.

② Turbine Agitator - Composed of 2 to 4 straight or curved blades mounted on a horizontal disk (Figure 3). The ratio of the blade's outer diameter, width, and height is generally 20:5:4, with a circumferential speed of 3 to 8 m/s. The turbine generates a highly turbulent radial flow during rotation, suitable for dispersing gases and immiscible liquids, as well as for liquid-liquid phase reactions. The viscosity of the liquid being agitated typically does not exceed 25 Pa·s.

③ Propeller Mixers - Available in flat and inclined types. The flat propeller mixer consists of two straight blades. The ratio of blade diameter to height is 4-10, with a peripheral speed of 1.5-3 m/s, resulting in low radial flow velocity. The inclined propeller mixer (Figure 4) has blades that are bent at 45° or 60° to each other, thus creating axial flow. Propeller mixers are simple and commonly used for mixing low-viscosity liquids, as well as dissolving and suspending solid particles.

④ Anchor Stirrer - The blade outer edge shape should match the inner wall of the mixing tank (Figure 5), with only a very small gap between them, which can remove sticky reaction products adhering to the tank wall or solid matter accumulated at the bottom of the tank, maintaining good heat transfer efficiency. The peripheral speed of the blade outer edge is 0.5 to 1.5 m/s, suitable for stirring Newtonian and pseudo-plastic fluids with a viscosity up to 200 Pa·s (see Viscous Flow). However, when stirring highly viscous liquids, there is a larger stagnant area within the liquid layer.

⑤ Screw blade stirrer – The outer diameter of the screw is equal to the pitch (Figure 6),***used for stirring high viscosity liquids (200-500 Pa·s) and pseudoplastic fluids, typically operating in laminar flow conditions.

⑥ Magnetic Stirrer - The Corning digital heater features a closed-loop control to monitor and adjust the stirring speed. The microprocessor automatically adjusts the motor power to accommodate water quality, viscosity solutions, and semi-solids.

⑦ Magnetic Heating Stirrer - Corning digital heating stirrer with optional external temperature controller (Ca. No. 6795PR), which can also monitor and control the temperature inside the container.

Technical Specifications and Model Designations

Equipment Name: QJB1.5/8-400/3-740

Motor Power: 1.5 kW

Impeller Speed: 740 rpm

Impeller Diameter: 400mm

Motor Protection Class: IP68

Motor Insulation Grade: F

Power: 380V; 3ph; 50Hz

No-load noise: ＜70 dB

Quantity: 1

Application Scope

Submersible mixers can operate continuously under the following conditions:

Altitude not exceeding 1,000m.

2 Medium temperature not exceeding 50℃;

The pH value of the 3 mediums is between 5~10.

4 Liquid density does not exceed 1200 kg/m³.

5 Long-term dive operations, with a maximum dive depth of no more than 20 meters.

Range of Accessories

1 unit assembled *** mixer

Lifting System Set 1

A complete installation system set

Winch set

One control cabinet