The single vibration source rectangular gyratory sifter is a standard square swing screening equipment, also called gyratory screen separator. The single-vibration design source does not have a large processing capacity as the dual-vibration source configuration, but it can provide higher screening accuracy, especially suitable for mineral powder materials with high screening accuracy requirements, such as fine screening and grading of oil fracturing sand.
- Model: FYBS-1536 , FYB-S2040
- Material: Carbon Steel
- Mesh Size: 2-300 mesh
- Layers: 1-10 layers
- Capacity: 500kg – 13 Tons/hour
Price: $14800.0 – 23400.0 / Set
Application
- Abrasive material and ceramic industry: building sand, mica, alumina, abrasive, refractory material, slurry, etc.
- Chemical industry: resin pigment, medicine, grease, paint, palette, etc.
- Food industry: sugar, salt, alkali, gourmet powder, starch, milk powder, yeast powder, pollen, food additives, etc.
- Metallurgy and mining industry: quartz sand, ore, meteorite, garnet, etc.
- Mechanical industry: casting sand, powder metallurgy, electromagnetic material, and metal powder, etc.
Silica Sand
Ceramic sand
Perlite
Emery
Metal Silicon Powder
Industry Salt
Cork powder- Calcium Carbonate
Plastic particles
Working Principle
The essence of the single vibration source rectangular sifter is the reciprocating inertial force formed by the rotation of the eccentric wheel winding the dead axle. According to the structure characteristics and working principle of a rotex gyratory screener, the screen surface is arranged with a level or incline (the angle of inclination is 0-5 degrees). After turning on the gyratory sifter, the screen box takes reciprocating movement under the inertial force, screen box drives the screen surface to make periodic shaking, which makes the materials on the screen surface make a directional jumping movement with the screen box.
During the period, the material less than the screen aperture falls to the layer, and the material bigger than the screen aperture makes a jumping movement, discharged from the coarse outlet.
Structures
This equipment is a rectangular gyratory sifter FYBS model developed and produced by our company with a hanging structure. It has applied for several national protection patents and is leading the industry.
The screen frame and the screen mesh installation method adopt a unique and innovative design, making the installation very convenient. Usually 9-layer design can be divided into 10 grades at one time, or 4 layers + 4 layers equivalent to 2 sets sieve machine, or 2 layers + 2 layers + 2 layers equivalent to 3 sets sieve machine, Or designed as 1 layer +1 layer +1 layer +1 layer +1 layer is equivalent to 5 sets sieve machines.
Details
Specifications
| Model | Screen size | Screening area | Screen inclination | Layers | Power | Number of turns | Case travel |
|---|---|---|---|---|---|---|---|
| FYBS1536 | 1.5*3.5 m | 4.5-9 m2 | 5-8 | 1-10 | 5.5 | 180-260 | 25-60 mm |
| FYBS2040 | 2.0*4.0 m | 8-9 m2 | 5-8 | 1-10 | 7.5 | 180-260 | 25-60 mm |
Features
- The screen mesh frame and the screen mesh and bouncing balls installation method adopt a quick open design and are easy to install,5-10 minutes to replace the screen mesh, which can be performed from the feed of the machine. Reducing equipment downtime and increasing production capacity.
- Diameter 40 mm bouncing balls to clean sieve mesh.
- Discharge port: The height can be customized. The color is optional.
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Customer Site
FAQs
Replacing the square gyratory screen is a meticulous and orderly process. The following are the specific steps and matters that need attention:
I. Preparation stage
- Shutdown and power off: The first step is to ensure that the square gyratory screen has completely stopped running and cut off the power supply to ensure the safety of operation.
- Tool preparation: Prepare the necessary tools, such as wrenches, screwdrivers and scissors, to facilitate the removal and installation of the screen.
- Screen inspection: Open the screen box screen plate, check the damage of the screen in detail, and clarify the specific location and size of the screen to be replaced.
II. Removal of the old screen
- Loosen the fixing parts: Use tools such as wrenches or screwdrivers to carefully loosen the screws or springs that fix the screen to avoid damaging the screen frame or other parts.
- Remove the old screen: Carefully remove the old screen from the screen frame along the U-shaped card slot or other fixed structure, and be careful to prevent the material on the screen from spilling.
III. Installation of new screen
- Cleaning the screen frame: Thoroughly clean the residual materials and impurities on the screen frame to ensure that the contact surface between the screen frame and the screen is clean and flat.
- Laying the new screen: Lay the new screen flat on the screen frame according to the specified size and direction, and pay attention to maintaining the flatness and proper tension of the screen.
- Fixing the screen: Use tools such as screws or springs to firmly fix the screen on the screen frame, ensure that the fixings are evenly distributed, and avoid deformation or loosening of the screen.
- Trimming excess screen: After fixing the screen, use scissors and other tools to trim the excess screen to keep the screen neat.
IV. Testing and debugging
- Reconnecting the power supply: After confirming that the screen is installed correctly, reconnect the power supply and start the square swing screen.
- Operation observation: Carefully observe the operating status of the screen to check for any abnormalities or abnormal phenomena. If problems such as looseness, deformation or leakage of the screen are found, the machine should be stopped immediately for inspection and readjustment.
- Screening operation: After confirming that the screen is operating normally, you can start feeding and screening operations.
V. Precautions
- Safety first: During the entire replacement process, be sure to comply with safety operating procedures to prevent accidents such as electric shock and mechanical injuries.
- Careful inspection: When disassembling and installing the screen, carefully check the integrity of the screen and the screen frame to ensure that there are no damaged or deformed parts.
- Proper tensioning: The tension of the screen is crucial to the screening effect and service life. Pay special attention to adjusting to the appropriate tension during installation.
- Regular cleaning: During use, the materials and impurities on the screen should be cleaned regularly to keep the screen unobstructed and the screening effect good.
- Follow the above steps and precautions to successfully complete the replacement of the square gyratory screener.
Adjusting the vibration frequency and amplitude of a gyratory sifter is a crucial step in optimizing the screening effect. Here are the specific adjustment methods:
I. Adjusting Vibration Frequency
The vibration frequency is primarily determined by the speed of the vibration motor. By adjusting the motor speed, the vibration frequency of the gyratory screener can be altered.
Increasing Speed: When it is necessary to enhance screening efficiency or processing capacity, the speed of the vibration motor can be appropriately increased, thereby increasing the vibration frequency. This acceleration facilitates faster material movement on the screen mesh, improving screening efficiency.
Reducing Speed: Conversely, when a finer screening effect is required or fragile materials are being processed, the speed of the vibration motor should be decreased, reducing the vibration frequency. This reduction helps minimize material breakage during the screening process and enhances screening accuracy.
II. Adjusting Amplitude
Adjusting amplitude typically involves setting the amplitude regulator, which includes components such as eccentric blocks and adjustment screws.
Changing Eccentric Block Position or Weight:
Position Adjustment: By rotating or moving the eccentric block, the direction and magnitude of the exciting force it generates can be altered, affecting the amplitude. Generally, the closer the eccentric block is to the vibration motor axis, the smaller the exciting force and amplitude; conversely, the farther it is from the axis, the larger the amplitude.
Weight Adjustment: Increasing or decreasing the weight of the eccentric block can directly change the magnitude of the exciting force, influencing the amplitude. A heavier eccentric block produces a greater exciting force, resulting in increased amplitude; conversely, amplitude decreases.
Adjusting Adjustment Screws: Some gyratory screeners may be equipped with devices such as adjustment screws. Rotating these screws can change the tension of the screen mesh or the vibration transmission path, indirectly affecting the amplitude.
III. Optimizing Vibration Transmission Method
- Apart from directly adjusting the vibration motor and amplitude regulator, the screening effect can also be improved by optimizing the vibration transmission method. Examples include:
- Using Suitable Spring Support Devices: The stiffness and arrangement of the springs affect the transmission efficiency of vibration energy. Selecting the right springs and arranging them appropriately can reduce vibration energy loss and enhance screening efficiency.
- Choosing Appropriate Screen Mesh Material: The material, aperture, and weaving method of the screen mesh impact the screening effect of the material. Selecting the right screen mesh material based on material characteristics and screening requirements helps improve screening efficiency and accuracy.
IV. Precautions
- Regular Maintenance and Inspection: Gyratory screeners are subject to wear and vibration from the material during use, making regular maintenance and inspection crucial. Replace worn screen meshes and parts promptly to maintain normal equipment operation.
- Safe Operation: When adjusting the vibration frequency and amplitude, ensure the equipment is powered off and in a safe state. Avoid adjusting operations while the equipment is running to prevent accidents.
- Comprehensive Consideration: When adjusting the vibration frequency and amplitude, consider factors such as screening efficiency, screening accuracy, material characteristics, and equipment lifespan. Through multiple tests and adjustments, find the appropriate combinat.
When dealing with material deviation on a gyratory sifter, several factors need to be adjusted to ensure smooth operation and accurate screening. Below are the primary methods to correct such deviations:
Adjusting the Vibrational Force
- Inspect and Adjust the Vibration Motors: It’s essential to verify that the eccentric weights of both vibration motors are set at identical angles. Inconsistent angles can lead to uneven vibrational forces, causing material to deviate on the screen. By synchronizing the angles of the eccentric weights, the forces are balanced, correcting the material flow.
- Ensure Opposite Motor Rotation: The gyratory screen requires that the two vibration motors rotate in opposite directions to create the necessary horizontal reciprocating motion. If both motors rotate in the same direction, reverse the power connection on one motor to achieve the opposite rotation, which stabilizes the material’s linear movement across the screen.
Checking the Screen Frame and Mesh
- Verify Screen Frame Rigidity: A weak screen frame can result in torsional movement rather than the required linear motion, contributing to material deviation. If the frame’s rigidity is insufficient, consider upgrading to a stronger mesh frame and securing it firmly. For wider screens, using a pressurized frame clamp in the center helps maintain uniform vibration across the screen.
- Select the Appropriate Screen: The choice of screen must match the material being processed. An unsuitable screen can lead to blockages or poor flow, causing material deviation. Ensure the screen is appropriate for the material’s properties to avoid these issues.
Optimizing the Feeding Process
Ensure Even Material Distribution: Material should be evenly distributed across the screen surface during feeding. Uneven feeding can lead to accumulation or poor flow, causing deviation. Adjust the feeding mechanism to ensure the material enters the screen surface uniformly and continuously.
Assessing Additional Factors
- Consider Material Properties: The physical properties of the material, such as particle size, moisture content, and viscosity, can influence how it moves on the screen. Changes in these properties may require adjustments to screening parameters or even selecting a different screen to maintain efficiency.
- Regular Equipment Maintenance: Consistent maintenance of the gyratory screen machine is crucial. Regularly inspect components like vibration motors, bearings, and screens to ensure they are functioning properly. Replace any worn or damaged parts promptly to prevent them from affecting the screening process.
