Model Meaning

Product Introduction
QDT low-speed thruster is widely used in water treatment processes, such as oxidation ditch thruster, agitation of various biochemical tanks, and can also be used for river antifreeze, landscape water circulation, etc. The low-speed thruster is composed of an oil submersible motor, reduction device, propeller, and installation system. Its characteristics are small matching power (1.5-7.5KW), low speed (36-135r/min), large blade diameter (1000-2500mm), low-speed rotation, generating large volume flow field, and wide service range. The swept back banana shaped blade design has self-cleaning function and is precision cast from polyurethane or aluminum alloy material. It has the advantages of light weight, high strength, and corrosion resistance. Its excellent friction performance can ensure good damping effect with liquids at low speeds, thus creating a soft water flow. This series of products not only has the functions of pushing and creating water flow, but also has the function of stirring.

Conditions of Use
To ensure the normal operation of the QDT low-speed thruster, please select the correct working environment and operating mode.
The temperature of the medium shall not exceed 40 ℃;
The pH range of the medium is 5-9;
The medium density shall not exceed 1150Kg/m3;
Diving depth not exceeding 10m.
Special Reminder: The QDT low-speed thruster must operate completely submerged in water and cannot work in flammable, explosive, highly corrosive, or high-temperature environments. Our company can provide special designs for users to meet the requirements of special environments.

scope of application
The QDT low-speed thruster is mainly used for mixing, stirring, and circulating in municipal and industrial wastewater treatment processes. It can also be used as a maintenance equipment for scenic water environments, creating water flow through stirring, improving water quality, increasing oxygen content in water, and effectively preventing suspended solids deposition.

Technical Parameter

Selection reference
The selection of QDT low-speed impeller is a relatively complex task, and the correctness of the selection scheme directly affects the normal use of the equipment. As the principle of selection, it is necessary to ensure that the mixer can fully exert its mixing function in the suitable volume, and this standard can generally be determined by the flow rate. According to the different process requirements of sewage treatment plants, the selected flow rate of the mixer should be between 0.15~0.3m/s. If the flow rate is lower than 0.15m/s, the effect of push flow mixing cannot be achieved. If the flow rate exceeds 0.3m/s, it will affect the process effect and cause waste. So before selecting, the first thing to determine is where the submersible mixer will be used, such as in a sewage tank, sludge tank, or biochemical tank; Next are medium parameters, such as suspended solids content, temperature, pH value, etc; The shape, depth, and installation method of the pool will also have an impact on the selection, and energy-saving factors should also be considered, as this will affect the user's future operating costs. You can refer to the flow field diagram of the submersible mixer below.
In order to meet the mixing function that can be achieved in different environments, we provide users with multiple models of QDT low-speed thrusters and offer selection services.