Duwan Environmental's QJB Submerged Turbulator is designed for use in wastewater treatment plants and industrial processes to stir liquids containing suspended solids, such as aeration basins in industrial and urban wastewater treatment plants. It generates a powerful water flow with low tangential velocity, which is applicable for... Established water flow in cycles and stages for nitrification, denitrification, and phosphorus removal.
The low-speed propeller features a compact structure, small size, and light weight. It is easy to operate and maintain, with convenient and quick installation, and a long service life. The blades have an auto-cleaning function, preventing debris entanglement and blockage. When used in conjunction with the aeration system, it significantly reduces energy consumption, increases oxygenation, and effectively prevents sedimentation. The motor winding of the low-speed propeller isFGrade 1 insulation, protection level:IP68Our newly selected lubrication-free, maintenance-free imported bearings feature oil chamber leakage detection and motor winding overheating protection, enhancing the safety and reliability of the motor operation.
The low-speed flow device features a sealing friction pair material made of corrosion-resistant tungsten carbide, all fasteners are made of stainless steel, the diving depth can be adjusted vertically as needed, and the angle of rotation around the guide rod within the horizontal plane is ±60°The base, support frame, and lower support of the lifting system are all secured to the pool with expansion bolts, eliminating the need for pre-drilled holes. When the pool depth isH ＞4Mitsui recommends installing System II, which requires a concrete foundation at the bottom of the pool.
The base of the low-speed flow inducer hoisting system, the steel rope mounting frame, and the guide base are all connected to the pool using expansion bolts, eliminating the need for pre-drilled holes. The low-speed propulsion system II employs guide steel ropes instead of rods, offering convenient transportation and simple on-site installation. The low-speed propulsion system fundamentally avoids issues such as rod bending and deformation during transportation, which could affect normal operation. It also effectively improves the situation where normal lifting is impossible due to installation errors in the rod when the pool is excessively deep.
The low-speed flow inducer installation system is made of stainless steel (or carbon steel). In addition to the guide rod or guide wire, and the lifting base, the installation system includes multiple components.QJBSubmersible propulsion units can share a common lifting device and are widely applicable to the anaerobic and aerobic treatment of industrial wastewater and urban domestic sewage in industries such as oil, chemical, dyeing, leather making, food, papermaking, textiles, and pesticides. The low-speed propulsion units are made using special material molding, with impeller diameters reaching Φ2500The optimized blades are designed in a swept-back configuration, offering high hydraulic efficiency and self-cleaning capabilities.
Additional Instructions for Installing Submersible Flow Pumps
1、Submersible Flow Propulsion InstallationEnsure the verticality of the guide rod during installation, with the deviation between top and bottom not exceeding10MMThere is no Chinese content provided for translation. Please provide the text to be translated./The feeder operates smoothly on the rod without jamming or excessive friction.
2Diving mixer/When the pump is level, the lifting center of gravity is on the third hole from the impeller end. During installation, ensure that the lifting frame of the crane aligns with the submersible mixer./The focus of the pump is aligned along a vertical axis. The submersible mixer.../The streamer moves smoothly and freely when lifting up and down.
3Regarding the use of lifting wire ropes, please apply lubricant to the wire rope before use and refer to the national standards for lifting equipment for maintenance and operation of the lifting equipment.
4In the wastewater treatment industry, the interface between water and air is corrosive.SeverePlease apply anti-corrosion treatment to the installation system, such as applying grease to the rod.
5Diving Agitator、The flowmeter must not be rotated during operation. Please adjust the angle during installation before running. Submersible mixer/Please place the pump on the lower mounting plate or directly on the bottom of the pool, ensuring the wire rope is not under tension.
6Submersible mixer/The submersion depth of the streamer must not be less than1.1MOtherwise, water vortices and cavitation may occur.
Installation Details of Low-Speed Submersible Turbulators Explained
The maintenance of low-speed submersible propellers is a concern for both users and the market. However, the maintenance process involves several steps. This article will discuss the crucial details that should not be overlooked after the installation of a low-speed submersible propeller.
One, inspection and adjustment of the gap between the impeller and the front guard plate. Generally, the gap should be0.75-1.0mm。
Two, Adjustment of the Motor Rotation Direction. The rotation direction of the motor should ensure consistency with the specified direction and must not rotate in reverse, as this may cause the propeller of the low-speed submersible pump to disengage or damage other components. It is recommended to disconnect the low-speed submersible pump from the motor completely before checking the motor's rotation direction.
Three: Adjustment of the transmission device. For those using a flexible shaft coupling transmission, ensure the shaft and protective cover are properly installed. For belt-driven systems, the low-speed submerged jet should have the belt properly installed, the tension adjusted, and the protective cover in place.
All fasteners are tightened using a wrench.
Five, the specifications, quality, and quantity of lubricating oils shall comply with the equipment technical specifications. Areas requiring preliminary lubrication should be lubricated in accordance with the equipment technical specifications.
Six: Clean the tools and debris placed on the low-speed submersible pump unit to prevent accidents during operation.
Before starting the low-speed flow generator, the inlet and outlet valves of the low-speed submersible flow generator should be in the following positions: Inlet valve: fully open; Outlet valve: the centrifugal low-speed submersible flow generator should be fully closed, while the other low-speed submersible flow generators should be fully open.(The mixed flow low-speed submersible pump is vacuum-assisted, with the outlet valve fully closed during water suction.)。
Duwan Environmental Equipment (Jiangsu) Co., Ltd. currently specializes in the following main products: Submersible Mixers Series:QJBSubmersible mixer,Dual-curved mixerQJB-WSludge Recirculation Pumps, Slurry (Frame) Mixers. Submersible Aeration Machines: Jet Aerator, Centrifugal Aerator, Vertical Surface Aerator, Buoyant Mixing Aerator, Deep Water Aerator. Silt Screening and Conveying Series: Mechanical Grates, Shaftless Screw Conveyors, Screw Press, Sand Sludge Removal Machine, Sand-Water Separator. Suction and Scum Removal Machines: Periphery-driven, Center-driven, Traveling Type, Siphon Type Suction and Scum Removal Machines, Skimmers, Gates, Submerged Type etc. Specialized Sewage Treatment Equipment. Submersible Pump Series:AS、AV、WQ，AFSubmersible Sludge PumpZQB、HQBSubmersible shaft, mixed-flow pumpRJCLong-axis deep-well pumpQRJSubmersible pump for well use.
