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QJB0.37/6-220/3-1470/S Small submersible mixer
QJB0.37/6-220/3-1470/S Small submersible mixer
Product details
QJB0.37/6-220/3-1470/S Small submersible mixer
QJB0.37/6-220/3-1470/S low powerApplication and conditions of submersible mixer
QJB0.37/6-220/3-1470/S Small submersible mixerSuitable for aeration tanks and anaerobic tanks in industrial and urban sewage treatment plants, it can be used to create water flow during water circulation, nitrification, denitrification, and phosphorus removal stages.
The mixed mixing series products use multi pole motors and adopt a direct connection structure, which has low energy consumption and high efficiency; The impeller is formed by precision casting or stamping, with high precision, large thrust, beautiful and smooth appearance, and compact structure.
The low-speed thrust series products adopt cycloidal pinwheel reducers, equipped with low power, low speed, large impeller diameter, and wide service area. The impeller is made of polyurethane material and aluminum alloy, with high strength and strong corrosion resistance. In addition to its stirring function, it also has the functions of pushing and creating water flow.
The motor winding of the submersible mixer is F-class insulated and has a protection level of IP68. When used in conjunction with the aeration system in sewage treatment plants, it can greatly reduce energy consumption and significantly increase oxygen filling, effectively preventing sedimentation. According to the process requirements, the direct coupled submersible mixer can be equipped with a guide cover.
The mixing and stirring series submersible mixer is suitable for various water treatment processes and industrial processes that require uniform mixing and reaction of solid and liquid two-phase or solid, liquid, and gas three-phase media.
The small submersible mixer series products use multi-stage motors, and the motor winding of the submersible mixer is F-class insulated with a protection level of IP68.
1. Performance of submersible mixer motor malfunction: Before disassembling the motor, we conducted an idle run to identify the problem. Unexpectedly, the motor made abnormal noise and experienced significant vibration; The submersible mixer emits a hissing sound at the shaft sleeve of the motor shaft, as if a certain component is "spinning" and cannot synchronize; The shaft extension temperature of the motor reaches over 60 degrees Celsius in less than 2 minutes of idle operation, giving a hot feeling.
2. Structural diagram of submersible mixer: The following figure is the assembly diagram of the impeller pump side bearing, with bearing model SKF 6309. The outer ring of the bearing is positioned with retaining ring 5, and the inner ring is positioned with shaft sleeve 4. The submersible mixer is fixed with spring retaining rings 2 and 3; The specification of skeleton oil seal 11 is 55x80x8, installed between retaining ring 5 and shaft sleeve 4, and slides on shaft sleeve 4; The fixing of the other end of the bearing relies on the shoulder of the 45 shaft section and the step of the bearing seat; The fit between the 55 shaft segment and the bearing seat is H8/f7, which is equivalent to a sliding bearing; The helical gear 7 is embedded in the right end of the submersible mixer shaft 8 through interference fit; 1 is the oil slinger, which prevents the oil from the gearbox from entering the skeleton oil seal.
3. Disassembly and inspection of submersible mixer: Firstly, remove the oil slinger 1, spring retaining rings 2 and 3; Remove the bearing cover at the rear of the motor and extract the motor rotor shaft 8 from the left side of the motor stator body 9; Then remove bearing 6, shaft sleeve 4, retaining ring 5, and skeleton oil seal in sequence!!!
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QJBInstallation system for submersible mixer QJBThe specialized installation system for submersible mixers allows for quick installation and disassembly without the need to discharge wastewater from the tank. When the pool is deepH＜4Mi Shi suggests using an installation systemⅠThe diving depth of the submersible mixer can be adjusted vertically as needed, and the maximum angle it can rotate around the guide rod in the horizontal plane is±60°The base, support frame, and lower bracket of the lifting system are all fixed with expansion bolts at the interface with the pool, without the need for reserved holes. When the pool is deepH＞4Mi Shi suggests using an installation systemⅡA concrete foundation (or steel structure base) needs to be built at the bottom of the pool. The lifting system base, steel rope fixing frame, and guide base are all fixed with expansion bolts at the associated interface with the pool, without the need for reserved holes. install the systemⅡReplacing guide rods with guide steel ropes has the advantages of convenient transportation and simple on-site installation. This system fundamentally avoids the situation of guide rod bending and deformation caused by transportation, which affects normal use, and effectively improves the phenomenon of inability to lift due to installation errors of guide rods when the pool is too deep. Under the installation conditions with a cantilevered pool roof (as shown in the picture), it appears more convenient and reliable to operate. When the customer places an order, please provide the depth of the poolHAnd the pool diagram, in order for the factory to determine the size of the guide rod or guide wire during processing. The material of the installation system is made of stainless steel (or carbon steel). In addition to guide rods or guide wires, and lifting bases, multiple mixers can share a set of lifting devices in the installation system (except for special user requirements). QJBPerformance characteristics of submersible mixer QJBThe submersible mixer is mainly composed of submersible motor, sealing mechanism, impeller, guide cover, hand hoist, electrical control and other parts. The stirring impeller rotates and stirs the liquid under the drive of the motor,Generate a rotating jet,And utilize the shear stress along the jet surface for mixing,Stir the liquid outside the flow field through friction,At the same time of extreme mixing,Forming volume flow,Apply large volume flow mode to achieve controlled fluid transport. QJBPerformance characteristics of submersible mixer 1The submersible mixer has a compact structure, simple operation and maintenance, easy installation and maintenance, and a long service life. 2The impeller has the best hydraulic design structure, high working efficiency, and the swept back blades have self-cleaning function to prevent debris entanglement and blockage. 3Mixing with the aeration system can significantly reduce energy consumption, increase oxygen filling capacity, and effectively prevent sedimentation. 4The insulation level of the motor winding isFGrade, protection level isIP68,Using imported bearings and a unique patented anti condensation device for the motor makes its operation safer and more reliable. 5Two mechanical seals, made of tungsten carbide tungsten carbide material. 6According to the process requirements, the direct coupled submersible mixer can be equipped with a guide cover. 7The stainless steel and carbon steel precision cast welded blades of the submersible mixer have been optimized to have swept blades with high efficiency and self-cleaning function. 8Internally equipped with leakage sensors and stator winding over temperature protection alarm devices.
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QJB0.37/6-220/3-1470/S submersible mixer
Material: All stainless steel
Submersible mixer model:
Casting mixer QJBO.85/8-260/3-740/C/S0.85426074055
QJB1.5/6-260/3-960/c/s1.5426096055
QJB2.2/8-320/3-740/c/s2.25.9320740110
QJB4/6-320/3-960/c/s410.3320960115
QJB5.5/4-670/3-295/c/s5.511.3670295350
QJB7.5/4-670/3-330/c/s7.515670330360
QJB11/4-790/3-303/c/s1123.4790303400
QJB15/4-790/3-360/c/s1529.7790360410
Stamping mixer QJB1.5/8-400/3-740/s1.54.4400740100
QJB2.5/8-400/3-740/s2.57400740100
QJB3/8-400/3-740/s38.6400740100
QJB4/12-615/3-480/s418615480184
QJB5/12-615/3-480/s520615480184
QJB7.5/12-615/3-480/s7.528615480229
QJB10/12-615/3-480/s1032615480229
Low speed thruster QJB3/2-1100/2-135/P36.41100135135
QJB1.5/4-1800/2-42/P1.53.6180042158
QJB2.2/4-1800/2-50/P2.24.9180050162
QJB3/4-1800/2-56/P36.8180056162
QJB4/4-1800/2-65/P48.8180065165
QJB1.5/4-2500/2-36/P1.53.6250036170
QJB4/4-2500/2-42/P48.8250042185
QJB5/4-2500/2-56/P511250056185
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