Explosion proof motor hyperbolic mixer CAD structural diagram

Explosion proof motor hyperbolic mixer CAD structural diagramAs an efficient mixing and stirring device, it is suitable for mixing and stirring various low viscosity liquids, solid-liquid, and gas-liquid mixtures; Not only suitable for circular and square pools, but also commonly used in rectangular pools for unit arrangement.
Among various existing sewage treatment processes in our country, the impeller mixer can mainly overcome the problems of blind spots and poor water gas mixing effect in traditional blade (slurry) mixing, and play its advantage of uniform mixing. The main characteristics are manifested in the following aspects:
⑴ It can be used in various situations where liquids, solids, and gases are mixed, and can replace existing stirring equipment to achieve three-dimensional, spiral mixing, making stirring more uniform and improving stirring efficiency.
⑵ The impeller with a larger specific surface area has a larger circulating water flow and lower energy consumption, saving 30% -50% energy compared to traditional mixing methods.
The whole machine has a compact structure, reliable operation, and easy installation and maintenance.
The impeller is made of reinforced fibers or steel materials, which can adapt to different working conditions and have a long service life

1、 Application scope

The GSJ/QSJ series hyperbolic mixer is a product currently developed by our company. It is widely used in industries such as environmental protection, chemical engineering, energy, and light industry where solid, liquid, and gas exchange of liquids is required. It is particularly suitable for mixing and blending various abrasive and high-temperature media in wastewater treatment processes, such as coagulation tanks, regulating tanks, anaerobic tanks, aeration tanks, nitrification and denitrification tanks.

2、 Structure Introduction

Hyperbolic mixers can be divided into two types based on installation methods: GDJ type (dry) and QDJ type (submersible).

The GSJ type hyperbolic mixer is composed of a reduction motor, shock absorber seat, mixing shaft, hyperbolic impeller, electric control box, bridge (which can be provided by the user), etc. The QDJ type hyperbolic mixer consists of a frame, lifting steel rope, main engine, hyperbolic impeller, and electric control box.

Technical Requirements:

1. The hyperbolic mixer is suitable for operation in raw water, sludge water, or liquid medicine mixtures. When working, no fibers should be hung on any part underwater to ensure uniform mixing in each area of the tank, and there will be no sludge sedimentation in the entire tank. The mixing uniformity should be greater than 95%.

2. Du'an Environmental Protection determines the output speed of the mixer through calculation. The mixer needs to operate continuously, intermittently, and after a long period of shutdown under full immersion conditions, and resume operation smoothly and without vibration throughout the entire operation process.

3. The mixer should be able to operate continuously 24 hours a day.

4. The entire load of the mixer should be supported on a concrete bridge, with bearings installed at the bottom for support. The torque is transmitted through a cantilevered vertical shaft and a gear reduction motor.

5. If the bottom of the double curved mixer is not supported, the impeller can self correct during operation, ensuring that the downward force is vertical and preventing unbalanced motion.

6. The impeller and motor direction of the mixer are matched with the pool type and flow state, and any reversal during operation will not cause adverse consequences to the equipment.

7. The transmission shaft is connected and fixed to the output shaft of the reducer through a coupling, and the transmission shaft should have sufficient cross-sectional size to withstand all the working torque of the mixing impeller.

8. The gear reduction motor is installed and fixed on the bridge, and the motor design complies with IEC standards. The rated power of the motor is 1.5 times greater than the actual required power, with F-class insulation. The power supply is 3P, 380V, 50Hz, and the protection level is IP65.

Electrical requirements:

The on-site electrical control box is supplied as a complete set for the mixer. The power, control cables, and cable fasteners from the electrical control box to the mixer are supplied by the equipment unit. The technical requirements for the control box and control are specified in the electrical and control clauses.

Self control requirements

Each mixer (device) needs to achieve on-site one-step control of start/stop function and have PLC remote control function. Its electrical control cabinet should have at least the following signal interfaces:

Input signal (passive contact): on/off control signal

Output signal (passive contact): manual/automatic signal;

Operation signal;

Comprehensive fault signal.

Passive contact signal logic: All signals are positive logic signals;

Signal contact capacity: 220V, 5A.

Connect with the factory control system

The signal of the mixer and the factory controller are connected by hard wires.

The characteristics of the hyperbolic mixer and its differences from other mixing equipment

Characteristics of hyperbolic mixer (vertical mixer):
The hyperbolic mixer (vertical mixer) has changed the disadvantages of conventional mixers such as uneven flow velocity, dead corners, and low volume utilization in the mixing tank. It produces uniform bottom omnidirectional push flow in the tank, without sedimentation, and the water surface is calm, with no air entering the water; The appearance of the mixing impeller is reasonable, with a double curved surface design and a non blade structure. It will not produce any debris or fiber entanglement on the mixer, so no maintenance is required during normal operation.
The hyperbolic mixer (vertical mixer) has low impeller speed, low wear, good corrosion resistance, reliable performance, and long service life. Compared with conventional mixers, this high-capacity omnidirectional push flow hyperbolic mixer has lower energy consumption. It generally only requires 2-3 watts to stir 1 cubic meter of sewage, with energy savings of 30% to 50%.

The difference between a hyperbolic mixer (vertical mixer) and other mixing equipment is that:
1. Due to the ideal fluid conditions, energy consumption is lower.
2. Due to the high flow rate of water in the entire pool, there will be no sludge sedimentation.
3. The mixer can self correct during operation, ensuring that the downward force is vertical and preventing unbalanced movement.
4. Omnidirectional flow, all areas in the pool can be evenly stirred without creating blind spots.
5. There are no vulnerable parts underwater, and it is easy and convenient to reach the deceleration motor for maintenance.
6. Do not use materials that are prone to rusting, and use advanced corrosion-resistant materials for both the mixing disc and mixing shaft.
7. Overall exquisite. Continuous improvement ensures an extremely long service life and sturdy and durable quality.
8. It won't block. Unlike horizontal flow mixers, there will be no substance attached to the mixing body.

List of standards followed in equipment design, manufacturing, and inspection

The general standard catalog that should be followed during the design, manufacturing, inspection, packaging, transportation, and installation process of this product is as follows:

JB2932-86 Technical Conditions for Manufacturing Water Treatment Equipment

GBJ17-88 Code for Design of Steel Structures

GB50205-95 Code for Installation and Acceptance of Steel Structures

JB/ZQ3011-88 General Technical Conditions for Installation of Mechanical Welding Parts

JB2932-86 Technical Conditions for Manufacturing Water Treatment Equipment

JB/ZQ4000.2-86 General Technical Conditions for Cutting Parts

JB/ZQ4000.3-86 General Technical Conditions for Welding Parts

JB/ZQ4000.5-86 General Technical Conditions for Castings

JB/T5000.5-98 General Technical Conditions for Nonferrous Metal Castings

JB/ZQ4000.9-86 Assembly Technical Conditions

JB/ZQ3011-88 General Technical Conditions for Installation of Mechanical Welding Parts

GB50205-95 Code for Installation and Acceptance of Steel Structures

GB1176 Technical Conditions for Casting Copper Alloys

GB17-88 Code for Design of Steel Structures

GB6414 Dimensional tolerances for castings

GB3797-89 Technical Conditions for Electronic Control Boxes with Electronic Devices

GB8923-85 Rust grades and rust removal grades of steel surfaces before painting

GB4979-85 Anti rust Packaging

The inspection rules and methods applicable to this product before leaving the factory

The "Product Installation Manual" and "Product Installation Inspection Rules and Methods" applicable to this product

The "Product Type Test Rules" and "Product Test Methods" applicable to this product

3、 Transportation and Storage

1. During transportation, the mixing shaft and impeller must not be subjected to pressure or collision, and must be loaded and unloaded using lifting equipment. The surface of the impeller should be protected from scratches.

2. Long term storage should avoid high temperatures and high-temperature environments. The mixing shaft should be suspended vertically, and the impeller should be placed on a flat surface to prevent deformation.

4. Installation

GDJ series installation steps

1. The bridge frame should be calibrated horizontally, and the half bridge frame columns should be calibrated vertically. The anchor bolts and connecting parts should be sturdy and reliable.

2. Place the shock absorber seat flat on the designated position of the bridge, align it horizontally, and connect and fix it to the bridge.

3. The deceleration motor is installed on the shock absorber seat and connected and fixed.

4. Connect and tighten the impeller and mixing shaft flange with bolts.

5. Place the impeller and mixing shaft into the pool, connect and tighten the mixing shaft to the output shaft of the reducer. When there is water, the shaft and impeller should be connected and placed in the water first, and then the shaft should be connected to the reducer.

6. After the installation of the mixer, the mixing shaft must be perpendicular to the horizontal plane. The vertical deviation is less than 1/1000.

7. After installation, remove the motor tail cover and manually transport the fan blades to check if the mixer is moving smoothly and normally. The swing deviation of the mixing shaft should be less than 3/1000.

8. After turning on the power, gently observe the direction of the mixing shaft's movement. When viewed from top to bottom, the correct direction of movement is counterclockwise rotation. If the opposite is true, switch the wiring positions of any two power supplies.

9. The installation of electrical equipment must be operated in accordance with relevant national regulations and safety procedures.

QDJ series installation steps

1. After a short period of time on the shore, observe the direction of impeller movement. When viewed from top to bottom, the correct direction of movement is counterclockwise rotation. If the opposite is true, switch the wiring positions of any two power supplies.

2. Separate and fix the motor cable from the sling, and never tie the cable steel rope together. To prevent steel ropes and cables from getting caught up in the impeller.

3. Lift the double curved surface with a crane and slowly place it in the designated position in the pool, being careful not to hit the pool wall.

4. Secure one end of the fixed rope to the shore and connect the cable to the electrical control cabinet.

5、 Run

After the installation of the equipment is completed, a trial run must be conducted. Before trial operation, approximately 70% of the tank volume must be injected into the tank. Do not operate the equipment without water to prevent the mixing shaft from bending due to uneven force. Pay attention to checking after trial operation:

1. Check for any abnormal noise or temperature rise in the deceleration motor.

2. Is the motor current within the rated range (overcurrent is normal for a short period of time during startup)

3. The swinging situation of the mixing shaft.

4. Is there any debris in the pool.

In any of the above situations where abnormal phenomena occur, the cause must be identified and corrected before use.

6、 Maintenance and upkeep

1. After the new machine starts running for 200-300 hours, it is necessary to replace the lubricating oil of the gearbox and clean the internal oil stains. In the future, it can be replaced once every six months to one year; For detailed information on the use of the deceleration motor, please refer to the manufacturer's user and maintenance manual.

2. Regularly check whether the locking nut and connecting bolts of the mixing shaft are loose.

3. Regularly check the swing of the mixing shaft and promptly remove any entanglement on the impeller and shaft.

4. Regularly inspect the transport components for any abnormal sounds and temperature rise.

5. Regularly check for any abnormal changes in current.

6. Before restarting the equipment after a long period of inactivity, the insulation of the motor should be checked to prevent the accumulation of sediment for a long time, which may cause difficulty in starting and damage the motor and impeller.

7. The above inspections should be recorded, and if any abnormal situations occur, please contact our company.

Explosion proof motor hyperbolic mixer CAD structural diagramScope of supply

The hyperbolic mixer produced by Jiangsu Du'an Environmental Protection is a complete set of equipment. In addition to the main body of the mixer, it is equipped with on-site control boxes, installation brackets, fasteners, and other necessary accessories for effective and safe operation. Provide all fasteners (including chemical bolts or pre embedded anchor bolts, nuts, washers, etc.) for installation during supply.

Performance and structural description of hyperbolic mixer:

The hyperbolic mixer is suitable for operation in sewage or sludge. During operation, no fibers should be attached to any part underwater to ensure uniform mixing in each area of the tank and no sludge sedimentation in the entire tank.

The hyperbolic mixer can operate continuously 24 hours a day, with a designed service life of not less than 20 years. It needs to operate continuously under full immersion conditions, running smoothly and without vibration throughout the entire operation process, with a running time of at least 10000 hours.

The shaft power of the mixer should ensure water mixing, with an average flow velocity at the bottom of the pool of ≥ 300mm/s. The motor power should be greater than 1.15 times the actual shaft power, and the mixer should not be overloaded under design conditions.

The entire weight of the hyperbolic mixer should be supported on the concrete floor, and the position of the impeller should be close to the bottom of the pool. There should be no bearing support at the bottom. The main drive shaft of the mixer should be designed as a whole and directly connected to the reducer, and cannot be a segmented structure connected by a coupling. Connected to the gear reduction motor through a cantilevered vertical shaft, and the gear reduction motor transmits torque.

The turbine impeller should be in the form of a conical hyperboloid, semi open, and with guide ribs on the conical surface. The connection between the impeller and the shaft must be made using countersunk nuts, and other methods are not accepted.

The rotation direction of the impeller of the hyperbolic mixer is determined according to the actual flow state of the wastewater in the process, and can be viewed as clockwise or counterclockwise rotation.

The motor reducer and installation base are fixed on the concrete floor. The motor design complies with IEC standards, F-class insulation, power supply 380V, 3-phase, 50HZ, protection level IP65, and can be started at least 12 times per hour.

The reducer is directly connected to the motor. The reducer adopts a helical gear reducer, and the gear design should comply with DIN standards. The gear material is alloy steel, with a hard tooth surface, a service factor of ≥ 2.0, and a rated bearing life of ≥ (L10) 100000 hours.