Rotary vibration screen frame structure for slurry screening

Abstract

The utility model discloses a spin vibration screen net rack structure for slurry screening, which comprises a net rack frame body with an annular structure, a screen is arranged at the upper end of the net rack frame body, a supporting net for supporting the screen is fixedly arranged at the top end of the net rack frame body, and a lower flange plate is fixedly arranged at the upper end of the inner wall of the net rack frame body. The top face of the lower flange plate is attached to the bottom face of the supporting net. The screen is arranged on the supporting net, an upper flange plate is arranged at the upper end of the screen, connecting holes of the upper flange plate correspond to connecting holes of a lower flange plate, bolts are connected between the connecting holes of the upper flange plate and the connecting holes of the lower flange plate, and the screen is fixed to the net rack frame through mutual clamping between the upper flange plate and the lower flange plate. The rotary vibration screen has the advantages that the strength is high when the screen works, the service life of the screen is long, the screen is convenient to replace, the replacement time of the screen is shortened, and the rotary vibration screen frame structure is convenient to disassemble and assemble, simple in structure and the like.

Description

Technical Field

[0001] This utility model relates to the field of rotary vibrating screen technology, specifically a rotary vibrating screen frame structure for slurry screening. Background Technology

[0002] Lime slurry is mainly used to absorb sulfur dioxide or nitrogen monoxide in flue gas during desulfurization and denitrification. It can also be used in alkali production, papermaking, and building mortar. When using lime slurry, attention must be paid to the concentration of the slurry, as the concentration affects the reaction efficiency and needs to be kept stable. Attention should also be paid to the fineness of the particles, as the finer the particles, the larger the reaction contact area. Therefore, a vibrating screen is needed to screen the slurry. When screening lime slurry, 150-325 mesh screens are generally selected. The wire diameter of the screen is very fine, the screen life is short, and it needs to be replaced frequently. Patent publication number CN210010179U discloses a screen tensioning device, which specifically discloses a screen frame, screen, pressure bar, tensioning block, and tensioning bracket. The screen is pressed onto the screen frame by the pressure bar. However, it has problems such as low strength of the screen during operation, short screen life, complex structure, and inconvenient disassembly and assembly. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a rotary vibrating screen frame structure for slurry screening. The screen has high strength during operation, long service life, and is easy to replace, reducing screen replacement time. The rotary vibrating screen frame structure is easy to assemble and disassemble, simple in structure, and lightweight, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a vibrating screen frame structure for slurry screening, comprising a ring-shaped screen frame, a screen at the upper end of the screen frame, a support net for supporting the screen fixed at the top of the screen frame, a lower flange fixed at the upper end of the inner wall of the screen frame, and the top surface of the lower flange fitting against the bottom surface of the support net; the screen is placed on the support net, and an upper flange is provided at the upper end of the screen, the connecting holes of the upper flange and the lower flange correspond to each other, bolts are connected between the connecting holes of the upper flange and the lower flange, and the screen is clamped and fixed to the screen frame by the upper flange and the lower flange clamping each other.

[0005] Furthermore, the upper end face of the grid frame is provided with an annular mounting groove, the outer edge of the netting is fitted inside the annular mounting groove, and a pressure ring for pressing the netting is provided inside the annular mounting groove. The pressure ring has fixing holes at equal intervals, and screws for fixing and connecting the grid frame are provided inside the fixing holes of the pressure ring.

[0006] Furthermore, the outer circumferential wall of the lower flange is welded and fixed to the inner circumferential wall of the space frame.

[0007] Furthermore, the space frame is a hollow structure.

[0008] Furthermore, the aperture of the support mesh is larger than that of the sieve mesh.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: This rotary vibrating screen frame structure for slurry screening supports the screen through a support net, increasing the strength of the screen during operation and extending its service life; when the screen needs to be replaced, it is only necessary to remove the bolts and remove the upper flange to replace the screen, making screen replacement convenient and reducing screen replacement time; the support net is pressed and fixed by a pressure ring, and the pressure ring is fixedly connected to the screen frame body by screws. This rotary vibrating screen frame structure is easy to assemble and disassemble, has a simple structure, and is lightweight. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a cross-sectional view of the present invention;

[0012] Figure 3 for Figure 2 Enlarged view of a specific area.

[0013] In the diagram: 1. Frame of the space frame; 2. Supporting mesh; 3. Pressure ring; 4. Lower flange; 5. Screen; 6. Upper flange; 7. Screw; 8. Bolt. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0015] Please see Figure 1-3This utility model provides a technical solution: a rotary vibrating screen frame structure for slurry screening, including a ring-shaped screen frame 1, which is hollow to reduce the weight of the rotary vibrating screen frame structure. A screen 5 is provided at the upper end of the screen frame 1. A support net 2 for supporting the screen 5 is fixedly provided at the top of the screen frame 1, and the aperture of the support net 2 is much larger than the aperture of the screen 5. An annular mounting groove is provided on the upper surface of the screen frame 1, and the outer circumference of the support net 2 is fitted into the annular mounting groove. A pressure ring 3 for pressing the support net 2 is provided in the annular mounting groove. The upper part has equally spaced fixing holes, and the fixing holes of the pressure ring 3 are provided with screws 7 for fixing the connecting mesh frame 1; the upper end of the inner circumference of the mesh frame 1 is welded with a lower flange 4, and the top surface of the lower flange 4 is in contact with the bottom surface of the support mesh 2; the screen 5 is set on the support mesh 2, and the upper end of the screen 5 is provided with an upper flange 6, the connection holes of the upper flange 6 correspond to the connection holes on the lower flange 4, and bolts 8 are connected between the connection holes of the upper flange 6 and the lower flange 4, and the screen 5 is clamped and fixed to the mesh frame 1 by the upper flange 6 and the lower flange 4.

[0016] The rotary vibrating screen frame structure for slurry screening disclosed in this embodiment supports the screen 5 through the support net 2, increasing the strength of the screen 5 during operation and extending its service life. When the screen 5 needs to be replaced, it is only necessary to remove the bolts 8 and remove the upper flange 6 to replace the screen 5, making screen 5 replacement convenient and reducing replacement time. The support net 2 is pressed and fixed by the pressure ring 3, and the pressure ring 3 is fixedly connected to the screen frame 1 by screws 7. This rotary vibrating screen frame structure is easy to assemble and disassemble, has a simple structure, and is lightweight.

[0017] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibrating screen frame structure for slurry screening, comprising a ring-shaped frame body, wherein a screen is provided at the upper end of the frame body, characterized in that: The top of the mesh frame is fixedly provided with a support net for supporting the screen. The upper end of the inner wall of the mesh frame is fixedly provided with a lower flange, and the top surface of the lower flange is in contact with the bottom surface of the support net. The screen is placed on the support net, and the upper end of the screen is provided with an upper flange. The connection holes on the upper flange correspond to the connection holes on the lower flange. Bolts are connected between the connection holes of the upper flange and the lower flange, and the screen is clamped and fixed to the mesh frame by the upper flange and the lower flange.

2. The vibrating screen frame structure for slurry screening according to claim 1, characterized in that: The upper end face of the grid frame is provided with an annular mounting groove. The outer edge of the netting is fitted into the annular mounting groove, and a pressure ring for pressing the netting is provided in the annular mounting groove. Fixing holes are opened at equal intervals on the pressure ring, and screws for fixing and connecting the grid frame are provided in the fixing holes of the pressure ring.

3. The vibrating screen frame structure for slurry screening according to claim 1, characterized in that: The outer circumferential wall of the lower flange is welded and fixed to the inner circumferential wall of the space frame.

4. The vibrating screen frame structure for slurry screening according to claim 1, characterized in that: The space frame is a hollow structure.

5. The vibrating screen frame structure for slurry screening according to claim 1, characterized in that: The aperture of the support mesh is larger than that of the sieve mesh.

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