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Shanghai Gaoben Ultrasonic Equipment Co., Ltd

E-mail
sales@advanceultrasonics.com
Phone
15921972179
Address
2nd Floor, Building 12, Yusong Industrial Park, Lane 838 Yuyang Road, Songjiang District, Shanghai

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Ultrasonic grid structure

NegotiableUpdate on 01/05

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Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

FN ultrasonic grid: divided into L-shaped and P-type. The material is stainless steel, and the size and shape can be customized. The mesh frame of the $n screening machine is one of the most essential components in screening equipment such as vibrating screens, rotary vibrating screens, linear screens, etc. It is directly responsible for carrying the sieve mesh and determining the material grading effect, screening efficiency, and equipment service life.

Product Details

1. What is a screening machine frame?

The screening machine frame, also known as the screening frame or screen support, is a support frame installed on the main structure of the screening machine to fix and tension the screen mesh. Its main function is to provide a flat, stable, and rigid working surface for the sieve, ensuring that the sieve can effectively screen materials under the high-frequency vibration of the screening machine.

　　FNThe main function of ultrasonic grid structure

Fixing and tensioning screen mesh: This is the most basic function. The grid firmly fixes and tightens the sieve mesh through a specific structure, preventing it from loosening, wrinkling, or shaking during vibration, thereby ensuring screening accuracy.

Transmitting vibration energy: The mesh frame is connected to the main body of the screening machine, which can efficiently and uniformly transmit the vibration force generated by the motor to the screen mesh, enabling the material to effectively layer, sieve, and move forward on the mesh surface.

Determining screening efficiency and accuracy: The flatness, tensioning method, and structure of the mesh directly affect the working state of the screen mesh. A flat and moderately tensioned mesh frame is a prerequisite for achieving high screening accuracy and efficiency.

Easy to replace and maintain: When it is necessary to replace the screen mesh (after wear and tear) or change the screening specifications (replace different mesh screens), it can be easily operated.

3. Core structure and composition

A typical screening machine frame typically includes:

Frame: It is a circular frame made of metal stainless steel, which constitutes the main body of the grid.

Strengthening ribs/support beams: inside the frame, used to increase the rigidity of the grid and prevent deformation under vibration and heavy loads. Strengthening reinforcement is crucial for large-scale grid structures.

Adhesive interface: Directly use adhesive to stick the screen mesh to the frame.

4. Common types

There are various types of screening machine racks, mainly divided according to the number of screening layers and structure:

According to the number of layers screened:

Single layer mesh frame: Only one layer of mesh is used for first level grading of materials (such as removing large impurities or obtaining a finished product of a certain specification).

Multi layer grid structure: composed of multiple single-layer grid structures stacked together, commonly 2-4 layers. Each layer can be equipped with screens of different mesh sizes, allowing the material to be divided into multiple specifications (such as coarse, medium, and fine) at once.

Divided by structure and tensioning method:

Mother child grid structure (double grid structure)

Structure: Composed of two layers of mesh. The bottom layer is the mother net (usually a heavy-duty sieve or punched plate with coarse wire diameter and large holes), which plays the main supporting role; The upper layer is a subnet (working mesh, a fine sieve with fine wire diameter and high mesh count), responsible for actual screening.

Advantages: The subnet is effectively supported and not easily crushed by materials, greatly extending the lifespan of the fine screen mesh; High screening accuracy.

Application: Suitable for fine screening of most powders and granular materials.

Tensioned mesh frame (tensioned mesh type)

Structure: Apply radial tension to the screen mesh through hydraulic, pneumatic, or mechanical means (such as peripheral bolts) to make it tight like a drum surface.

Advantages: The mesh has high tension, good permeability, and can effectively prevent clogging, resulting in high screening efficiency and accuracy.

Application: Industries that require high screening efficiency and blockage prevention, such as fine chemicals, high value-added powders, metal powders, etc.

Adhesive mesh frame

Structure: The screen mesh is directly adhered to the surface of the mesh frame using a specialized adhesive.

Advantages: Simple structure, low cost, and very flat mesh surface.

Application: Mainly used for light and low load screening, such as some primary screening in the food and pharmaceutical industries.

How to choose a suitable screening machine frame?

Material characteristics:

Corrosivity: determines the material.

Specific gravity and particle size: determine the structural strength of the grid (heavy materials require punched plates or mother nets).

Shape and characteristics: Is it sticky or prone to static electricity? This will affect the choice of tensioning method.

Screening requirements:

Accuracy requirement: High precision screening requires the selection of tensioning or mother and child grid structures to ensure a flat and tensioned mesh surface.

Processing capacity requirement: A grid structure with high porosity is required for large processing capacity.

Equipment and Cost:

Screening machine model: The mesh frame must match the interface size and fixing method of the screening machine.

　　FN ultrasonic screening machine mesh frameMaintenance and Precautions

Regularly check the tension: Loose mesh can seriously affect the screening effect and accelerate wear.

Correct installation: When replacing the screen mesh, make sure to install it flat and evenly tensioned to avoid "material running" or premature local damage.

Cleaning: Clean up residual materials on the mesh surface in a timely manner after shutdown to prevent clogging of the mesh holes and corrosion of the mesh frame.

Avoid overload: The material feeding amount should not exceed the design load of the grid, otherwise it may cause deformation of the grid or damage to the screen mesh.

Simply put, the mesh frame serves the sieve, while the sieve serves the screening effect.