1.1 Equipment Name: Submersible Agitator
1.2 Equipment Model; QJB1.5/6-260/3-980
1.3 Main Technical Parameters
Model Technical Specifications | QJB1.5/6-260/3-980 |
Motor Power | 1.5kw |
Impeller diameter | 260mm |
Impeller speed | 980r/min |
Motor protection rating | IP68 |
Motor insulation grade | F |
Electricity Source | 380V , 3ph , 50Hz |
Installation Location | Sludge pond |
Numbers Quantity | 3 units |
Terms of Use
Submersible mixer operates normally under the following conditions:24/7 continuous operation
（1) Environmental Temperature:Please provide the Chinese content to be translated into American English.Low-6 ℃，Please provide the Chinese content to be translated.High:40℃；
（2) Environmental Humidity:Please provide the Chinese content to be translated.Large70%、Please provide the Chinese content to be translated.Please provide the Chinese content to be translated.50%；
（3) Medium pH Range: 5.5-9
（4) Medium density not exceeding 1150 kg/m³3；
（5) Diving depth not exceeding 20m.
Technical Performance
（1) The rated capacity of the mixer is based on a continuous duty cycle (S1) continuous rating.
（2) The blender operates smoothly and freely without any jamming or hesitation.
（3) The mixer should withstand a pressure of no less than 0.2 MPa; pass a 3-minute air pressure test without any leakage.
（4) Mixers are equipped with double mechanical seal structures and lip seal arrangements. The mechanical seals ensure reliable operation for 2 years without replacement; if damaged, the supplier will replace it without conditions.
（5）DivingThe mixer's pull-out cable is designed forThe YZW type medium rubber sheath cables or cables with equivalent performance, as specified in GB5013.4, are normally configured with a cable length of 10 meters. The cable sealing heads are treated with a special vulcanization process, allowing for easy replacement and effective sealing.
（6）DivingThe stainless steel parts of the blender are smooth, free from stains and dents.Cracks and the like.
（7）Duwan Environmental ProtectionQJB Diving EquipmentThe oil pan is equipped with a sealed leakage protection device.
（8）DivingThe blender features a detailed red rotating mark.
（9）DivingDual-color wire (yellow) in the mixer's lead cable/Green) designated as the grounding wire, with reliable connection. The grounding symbol is prominent and not easily worn off during use.
（10）DivingAgitator blades and rotors are tested for dynamic balance, with a balancing accuracy ofG6.3；
Diving ImpellerStructural Design
Each unitDuwan Environmental DivingOverall design of the mixer, enclosed connection, submersible. All components of the mixer, including the motor, areOperates continuously underwater. All exposed nuts, bolts, and washers are made of stainless steel. The oil chamber cover is made of a corrosion-resistant synthetic material.
（1) Junction box
The junction box is made of stainless steel, fully enclosed, and completely sealed from surrounding liquids and motor parts; the cable is a specially processed sealed waterproof cable.
（2) Mechanical Seals
Axial seal features two independently separate mechanical seal structures; the sealing friction pad material is corrosion-resistant sintered tungsten carbide./Silicon carbide,Operates sealed within an oil cavity, which is adequately filled with oil and provides ample space to lubricate the overlapping sealing surfaces with a stable flow rate. External mechanical seal is made of corrosion-resistant sintered tungsten carbide./Silicon carbide, prevent the slurry from entering the oil cavity. The internal mechanical seal is silicon carbide/silicon carbide, to prevent oil from the oil cavity from entering the motor. The internal and external mechanical seals operate independently.
Static sealO-ring seal, made of fluororubber.
（3) Bearings
The motor shaft is fitted with a deep groove ball bearing and a double-row angular contact ball bearing, all of which are maintenance-free imported bearings.NSK) or (SKF), with a design lifespan exceeding 150,000 hours.
（4) Electric Motor
The motor of the submerged mixer is a squirrel-cage induction motor, with the rated power value to exceed the expected load by at least10%, connected to the impeller via a deceleration device; its winding insulation level is F-grade, with a working temperature up to 155OC, MotorPlease provide the Chinese content that needs to be translated into American English.No overload occurs under heavy mixing loads; the motor can start up at least every hour.15 times, but the time intervals should be even. The motor is designed with an inert gas-filled casing, internally filled with inert gas to prevent condensation inside the motor and the intrusion of external dirt. The motor stator is made using the hot sleeve method.Encased securely, it is reliable. Normally, the motor's temperature rise does not exceed80OC，
（5) Protection Device
The motor stator cavity and oil chamber are equipped with leak detectors to monitor dynamic and static seal leaks, and to timely disconnect the power supply. The stator chamber leak sensor is connected to the motor terminal box via wires.
（6) Cooling
The motor's cooling is achieved through liquid heat conduction around the casing. The motor stator is embedded in the casing with a heat sleeve to enhance its thermal conduction efficiency.
Duwan Environmental Protection Submersible AgitatorService Life
Duwan Environmental DivingThe mixer operates continuously, intermittently, and recovers from long-term stops under specified conditions, maintaining smooth operation throughout the entire process. The average running time prior to the first failure is not less than15,000 hours.
Duwan Environmental QJB Submersible AgitatorInstall system
（1）Jiangsu Du'anQJB Type Diving SuitThe mixer's elevation is handled by the installation system, each unitDivingThe mixer should be equipped with an installation system, including: guide rod, support frame, arm-type crane lifting frame, and hand-cranked hoist.
（2) The installation system guide rod can rotate horizontally around the axis of the guide rod.Please provide the Chinese content to be translated.Large corner turn±60º；
（3) A support bracket must be added in the middle of the guide rod when H > 4m.
（4) The support and lower bracket are securely fastened to the pool wall and bottom with expansion bolts.
（5) Specific on-site survey required
Duwan Environmental Protection Submersible Agitator After-Sales Service Commitment
1. Delivery of equipment within 1 month after contract signingOr amicable negotiation by both parties。
2. During the warranty period1Year, if1Within the year, product quality issues arose, confirmed to be due toJiangsu Du'an Environmental Protection ManufacturerDesign and manufacturing issues.Jiangsu Du'an Environmental ProtectionParts, components, and services will be provided free of charge. If the issues arise from the owner's improper use and maintenance, the second party willPlease provide the Chinese content you would like translated.Offer low-priced parts, components, and repair services.
3. After the quality guarantee period expires,Jiangsu Du'an Environmental ProtectionParts will be supplied to the owner at cost price, and as perPlease provide the Chinese content to be translated.Offer paid repair services at low prices.
4. Under the condition that the user complies with the equipment's maintenance and operation procedures, any damage or failure to operate normally due to design or manufacturing quality of the equipment will be covered under the warranty period.Jiangsu Du'an Environmental ProtectionFree replacement or repair of equipment parts for general contractors; in case of personal or property loss to the general contractor due to this,Jiangsu Du'an Environmental ProtectionCompensate them accordingly.
