Shandong Ningye Machinery Equipment Co., Ltd. is one of the leading manufacturers and suppliers of side-entry sewage agitator in China. With a professional production team, we are able to meet the needs of the majority of our customers. Please feel free to buy durable side-entry sewage agitator at low price from our factory.
Product Overview
The Side-Entry Sewage Agitator is a specialized mixing device for sewage treatment. Its core feature is that the mixing shaft is inserted horizontally or at an inclined angle from the side of sewage tanks or storage tanks, enabling efficient mixing, blending and dispersion of sewage and sludge. This device is mainly used to solve problems such as sludge sedimentation, medium stratification and insufficient reaction during sewage treatment. It is widely applied in municipal sewage treatment, industrial wastewater treatment, environmental protection projects and other scenarios requiring continuous mixing, especially suitable for large-capacity sewage tanks with limited top space, serving as an indispensable auxiliary equipment in the sewage treatment process.
Core Structure
The device has a compact structure, with core components specially optimized for sewage working conditions to adapt to the complex environment of corrosive and impurity-containing sewage. It mainly consists of the following parts, which work together to ensure stable and efficient operation of the equipment:
Drive Device:
The core is a high-efficiency and energy-saving motor, which can be equipped with a regular motor or an explosion-proof motor according to working conditions. Combined with a gearbox or belt drive structure, it ensures stable power transmission. The motor efficiency is stably above 92%, effectively reducing energy consumption;
Mixing Shaft:
Made of high-strength steel with anti-corrosion treatment on the surface, supported by bidirectional thrust bearings and water-lubricated sliding bearings, it has sufficient strength and rigidity to withstand the impact of sewage and sludge, avoiding deformation or fracture;
Mixing Impeller:
Mostly adopts propeller or turbine type, optimized according to sewage viscosity and mixing requirements. The material can be 304/316L stainless steel, rubber-lined, PTFE, etc., which can generate strong axial and radial flow to achieve large-scale dead-angle-free mixing;
Sealing System:
Mainly adopts mechanical seal or packing seal, and some models are equipped with double seal and flushing system, which can effectively prevent sewage leakage and adapt to the working conditions with many impurities and strong corrosion in sewage. Some models can replace seals without emptying the tank;
Working Principle
The side-entry sewage agitator is motor-driven. The motor transmits power via a transmission mechanism to rotate the mixing shaft and impeller.
Based on fluid mechanics, the rotating impeller creates a powerful circulating flow. It produces combined axial and radial flow in sewage, lifting settled sludge from the tank bottom and circulating upper sewage downward for continuous mixing.
This design evenly blends pollutants, chemicals and activated sludge, prevents sludge caking and sedimentation, and enhances mass and heat transfer. It ensures stable conditions for subsequent biochemical treatment and coagulation. For large sewage tanks, multiple agitators can be arranged with CFD flow field simulation to eliminate dead zones and achieve full-tank uniform mixing.
Core Advantages
Compared with other types of mixing devices such as top-entry ones, the Side-Entry Sewage Agitator is specially optimized for sewage treatment scenarios, with prominent core advantages and more in line with actual use needs:
Space-Saving and Flexible Installation:
It does not occupy the top space of the sewage tank, suitable for scenarios with pipelines, instruments or limited space on the top. The installation angle and quantity can be flexibly adjusted according to the size and shape of the sewage tank, and it is also convenient for the renovation and upgrading of existing sewage tanks;
Efficient Mixing Without Dead Zones:
The optimized impeller design and side-entry installation method can generate a large-scale circulation flow. Combined with multiple devices, it can eliminate more than 90% of the mixing dead zones at the bottom of the large tank, with high mixing uniformity, which can effectively prevent sludge sedimentation and medium stratification;
Convenient Maintenance and Short Downtime:
Key components such as the drive device and sealing system are located outside the sewage tank, so daily inspection and maintenance can be carried out without emptying the sewage in the tank, reducing equipment downtime and maintenance costs;
Application Scenarios
This device is mainly used in various sewage treatment and related environmental protection scenarios, especially suitable for large-capacity working conditions with limited top space. The specific application scenarios include:
Municipal Sewage Treatment:
Used in aeration tanks, anaerobic tanks, aerobic tanks, selection tanks, secondary sedimentation tanks, sludge thickening tanks, etc., to maintain uniform suspension of activated sludge, ensure full contact between microorganisms and sewage, and improve biochemical treatment efficiency;
Industrial Wastewater Treatment:
Suitable for wastewater adjustment tanks and reaction tanks in chemical, petroleum, food, pharmaceutical, papermaking and other industries, promoting rapid mixing of wastewater and chemicals, strengthening reaction effects, and preventing sedimentation of impurities in wastewater;
Sludge Treatment:
Used in sludge storage tanks, digestion tanks, etc., to maintain sludge fluidity, prevent sludge sedimentation and caking, promote anaerobic digestion process, and facilitate subsequent sludge dewatering treatment;
Key Technical Parameters (Reference)
Equipment parameters can be customized according to the user's actual working conditions (sewage tank volume, sewage viscosity, mixing requirements, etc.). The following is the range of conventional standard parameters for user reference:
Power Range:
0.75kW ~ 75kW, which can be flexibly selected according to the volume of the sewage tank and mixing intensity;
Impeller Diameter:
300mm ~ 2000mm, selected according to the length of the mixing shaft and mixing requirements;
Material Selection:
The main material can be carbon steel, 304 stainless steel, 316L stainless steel, and the impeller can be rubber-lined, PTFE, Hastelloy, etc. according to the corrosion of the medium;
Installation Method:
Mainly horizontal side installation, which can be adjusted to inclined installation according to on-site process, supporting combined installation of multiple units.
Operation and Maintenance Instructions
The equipment is simple to operate and convenient for daily maintenance, which can effectively extend the service life of the equipment and reduce operating costs. The core precautions are as follows:
Pre-Start Inspection:
Confirm that the mixing impeller is not stuck, the sealing system has no leakage, and the motor wiring is normal. Avoid no-load startup to prevent equipment damage;
Daily Operation:
The equipment can run continuously. During operation, regularly check the motor temperature, noise and vibration, and stop for inspection in time if any abnormality is found;
Maintenance:
Regularly clean the entanglements and sediments on the impeller to avoid affecting the mixing effect; regularly check the sealing system and replace the seals in time to prevent sewage leakage; regularly add lubricating oil to the transmission components to ensure smooth power transmission;
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