Duwan QJB-W2.5 Submersible Sludge Recirculation Pump

Usage Instructions:

Du'an Environmental ProtectionQJB-WSludge RecirculationPump is a specialized equipment for the mixing liquid return and denitrification in two-stage sewage treatment plants. It can also be used in locations requiring low head and high flow, such as surface drainage, irrigation, and wastewater recycling processes.

Product Features:

Compact structure, easy installation, simple operation, easy maintenance, noiseless, can be installed anywhere.

Application Range:

The submersible recirculation pump can operate continuously under the following conditions:

Altitude not exceeding1000m；

Please provide the Chinese content to be translated.Medium temperature not exceeding40OC；

MediumPHValue at5-9Between;

Liquid density does not exceed1150kg/m3；

Extended dive operations, dive depths generally do not exceed20m；

QJB-WWTechnical specifications for type submersible sludge recycling pump:

 DuAn Environmental QJB-W Submersible Recirculation PumpThis is a new product developed in the technology of submersible mixers, designed as a professional equipment for mixed liquid recirculation in secondary wastewater treatment plants and denitrification nitrogen removal. It can also be used for pumping purified water during ground drainage, irrigation, and control of waterway systems, as well as in recirculation processes or sludge suction circuits requiring low head and high flow rates.

 QJB-WModel Submersible Recirculation Pump equipped with a technologically advanced axial three-blade impeller, featuring excellent self-cleaning and vibration-free capabilities. The impeller design meets the requirements for both high flow rate and low head, forming a large flow rate in the axial direction. Utilizes special submersible motor sealing technology to ensure safe and reliable sealing. Upon water entering the oil chamber, the humidity sensor in the probe-side leakage system will automatically trigger an alarm signal, allowing for timely detection and preventing secondary failures.QJB-WThe motor winding of this type of submersible recirculation pump employs an advanced and safe overheating protection process. In case of motor overload, excessive medium temperature, or other causes of overheating, the temperature sensor will promptly send an alarm signal or automatically shut off the pump before the temperature exceeds the allowable limit.

Duwan Environmental QJB-W2.5The Type Submersible Recirculation Pump utilizes automatic track coupling installation for quick setup, improvement, and maintenance. It is developed based on the forefront technology of nitration and absorption from foreign similar products, featuring high efficiency, anti-tangling, non-blocking, automatic coupling, high reliability, and automatic control. It possesses unique functions for conveying solid particles and long fiber waste.QJB-WThe Submersible Recirculation Pump is a product independently developed based on the German submersible motor production technology. It is a specialized equipment for the mixing liquid recirculation and denitrification in secondary wastewater treatment plants, and can also be used in places requiring low head and high flow, such as ground drainage, irrigation, and wastewater treatment recycling processes.

QJB-WSubmersible return pump with low head and high flow rate, high efficiency. The impeller features a high-performance hydraulic design structure, and the swept-back blades have self-cleaning function, anti-clogging, and anti-entanglement. Equipped with new sealing materials, double mechanical seals, made of tungsten carbide – tungsten carbide. Imported bearings used, all fasteners are made of stainless steel, ensuring safe and continuous operation of the pump.10000Over 8 hours.QJB-WThe compact submersible recirculation pump features simple operation and maintenance, easy installation and repair, and a long service life. The main unit is made of cast iron or stainless steel pressure-molded structure, which is small in size, high in density, corrosion-resistant, and noise-free. It is equipped with protection and alarm devices for electric leakage, water leakage, and motor overload, ensuring the safety and reliability of the product.

Jiangsu Du'an Environmental Protection Mixed Liquid Recirculation Pump Supply Range:

DuwanQJB-WThe mixed fluid回流 through-the-wall pump is a complete set, and it requires accessories such as an on-site control box, stainless steel double rods, stainless steel lifting chains, jib, hoist, through-the-wall pipe, butterfly valve, and cables from the control box to the equipment for safe operation.

Scope of Supply (including but not limited to the following):

(1)  Fully assembled internal recirculation pumpMain Unit

(2)  Oil Chamber Monitoring Unit

(3)  Complete Hoisting EquipmentManual Hoist or Hand Crank Winch with Stainless Steel Wire Rope

(4)  Each pump to be supplied10mUnderwaterSealed Cable

(5)  All connecting attachments, embedded foot bolts, etc.

(6)  Three-year spare parts inventoryImpellers, bearings, mechanical seals, cables, etc.