CN211471960U

CN211471960U - Internal flow type screen mesh

Info

Publication number: CN211471960U
Application number: CN201922487425.0U
Authority: CN
Inventors: 柏新传
Original assignee: Kunshan Jinlianzhi Precision Machinery Co ltd
Current assignee: Kunshan Jinlianzhi Precision Machinery Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-11
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses an inward flow type screen mesh, which comprises an upper flange, a lower flange, a plurality of reinforcing rings and a plurality of bars, wherein the upper flange, the reinforcing rings and the lower flange are arranged in parallel, a plurality of tooth sockets are arranged outside the reinforcing rings, the tooth sockets are uniformly distributed around the center of the reinforcing rings, and the bars are inserted into the tooth sockets; the bar is divided into an insertion part and a fan-shaped part, the insertion part is inserted into the tooth socket, and the joint of the insertion part and the fan-shaped part is a middle waist part; glue is arranged between the bar and the tooth grooves for connection; the bar and the reinforcing ring are connected by using high-strength metal glue, so that the structural strength of the bar is not damaged, and the screen is firmer.

Description

Internal flow type screen mesh

Technical Field

The utility model belongs to the technical field of papermaking pulping screening installation, a screen cloth, especially an internal flow formula screen cloth is related to.

Background

Most of screening equipment used in the waste paper treatment process of the current pulping and papermaking production line is a pressure screen, a screening area of the pressure screen mainly comprises a rotor and a screen mesh, the screen mesh comprises an upper flange, bars and a flat ring, the screening area of the screen mesh is formed by uniformly arranging a plurality of bars along the circumferential direction, gaps are formed between the bars, when paper pulp enters the screening area, good pulp enters a good pulp pipeline through the gaps, and large impurities enter a slag discharge pipeline through the gaps, so that the impurities in the paper pulp are separated from the good pulp; paper pulp sets up inside the screen cloth, and outside-in filters, and paper pulp filters through the gap between stick and the stick to the screen cloth is inside for good thick liquid, stays the outside impurity that is of screen cloth, and this kind of screen cloth is the inward flow formula screen cloth.

The screen cloth manufactured in the past is that teeth are cut on a flat ring, bars are embedded in the teeth and are fixed on the flat ring through welding, the manufacturing method is high in manufacturing cost, long in processing period, poor in roundness of the screen cloth and uneven in seam width due to large thermal deformation, the seam width needs to be adjusted manually, time and labor are wasted, working efficiency is low, and air holes, slag inclusions, cracks and residual stress are prone to occur at the welded position.

Disclosure of Invention

The utility model aims at providing an internal flow type screen cloth to there is foretell problem in prior art.

In order to achieve the purpose, the internal flow type screen comprises an upper flange, a lower flange, a plurality of reinforcing rings and a plurality of bars, wherein the upper flange, the reinforcing rings and the lower flange are arranged in parallel, a plurality of tooth grooves are formed in the outer sides of the reinforcing rings, the tooth grooves are uniformly distributed around the center of the reinforcing ring, and the bars are inserted into the tooth grooves; the bar is divided into an insertion part and a fan-shaped part, the insertion part is inserted into the tooth socket, and the joint of the insertion part and the fan-shaped part is a middle waist part; and glue is arranged between the bar and the tooth grooves for connection.

More specifically, the reinforcing ring is a circular ring integrally cut on the steel plate.

More specifically, the cross section of the insertion part is in a dovetail shape.

More specifically, the included angle between the left side surface and the right side surface of the insertion part is 1-40 degrees.

More specifically, the middle waist portion is recessed inwards to form an arc portion.

More specifically, the radius of the arc part is 0.5-1.2 mm.

More specifically, the glue is high-strength metal glue.

Further specifically, the cross-section of sector is surrounded by first limit, second limit, third limit, fourth edge and fifth limit and forms, first limit is parallel with the Y axle, the contained angle that second limit and Y axle become is 18, the junction on first limit and second limit is equipped with the circular arc that the radius is 5mm, the contained angle that third limit and X axle become is 14, the junction on second limit and third limit is equipped with the chamfer that the radius is 0.2mm, the contained angle of fourth edge and Y axle is 10, the junction on third limit and fourth edge is equipped with the chamfer that the radius is 0.35mm, the fifth limit is parallel with the Y axle, the junction on fourth edge and fifth limit is equipped with the circular arc that the radius is 5 mm.

More specifically, the height of the bar is 8-10 mm; the height from the bottom of the insertion part to the center of the arc part is 1.5-5 mm.

More specifically, the bar is fixed to the upper flange and the lower flange, and the distance between every two adjacent reinforcing rings is equal.

The utility model relates to an internal flow type screen cloth can realize following technological effect: the inward flow type screen mesh is characterized in that the bars and the reinforcing rings are connected through high-strength metal glue, the structural strength of the bars is not damaged, and the screen mesh is firmer.

Drawings

Fig. 1 is a schematic front view of the present invention;

fig. 2 is a schematic bottom view of the present invention;

FIG. 3 is a schematic cross-sectional structure of the bar of the present invention;

in the figure: 1. a bar; 2. a reinforcement ring; 3. an upper flange; 4. a lower flange; 11. an insertion portion; 12. a sector; 13. a middle waist portion; 121. a first side; 122. a second edge; 123. a third side; 124. a fourth side; 125. and a fifth side.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

In order to solve the above technical problems, as shown in the attached drawings of the specification, the present invention is realized by the following technical solutions:

the utility model relates to an inward flow type screen, as shown in fig. 1 and fig. 2, comprising an upper flange 3, a lower flange 4, a plurality of reinforcing rings 2 and a plurality of bars 1, wherein the bars 1 are fixed with the upper flange 3 and the lower flange 4 to ensure the stability of the bars 1; the width of the reinforcing ring 2 is 4mm, so that the structural strength of the reinforcing ring 2 is ensured; the upper flange 3, the reinforcing rings 2 and the lower flange 4 are arranged in parallel, and the distances between two adjacent reinforcing rings 2 are equal; a plurality of tooth grooves are formed in the inner sides of the reinforcing rings 2, the tooth grooves are uniformly distributed around the centers of the reinforcing rings 2, and the bars 1 are inserted into the tooth grooves; a certain gap is arranged between the bars 1, and the size of the gap is adjusted according to the requirement; as shown in fig. 3, the bar 1 is divided into an insertion portion 11 and a sector portion 12, the insertion portion 11 is inserted into the tooth slot of the reinforcement ring 2, a middle waist portion 13 is arranged at the connection position of the insertion portion 11 and the sector portion 12, and glue is arranged between the reinforcement ring 2 and the bar 1 for connection.

As shown in fig. 2, the reinforcing ring 2 is a circular ring integrally cut from a steel plate, the reinforcing ring 2 is connected with the bar 1 through high-strength metal glue, and the strength of the bar 1 cannot be reduced by adopting the glue connection, so that the screen is not firm; as shown in fig. 3, the cross section of the insertion part 11 is dovetail-shaped, and the included angle between the left side surface and the right side surface of the insertion part 11 of the bar 1 is 1-40 degrees; the left side surface and the right side surface of the insertion part 11 are arranged at a certain angle, so that the structure is firmer and the practicability is good; the radius of an arc part formed by inwards sinking the middle waist part 13 is 0.5-1.2mm, the arc part is used for connecting the inserting part 11 and the fan-shaped part 12, and the middle waist part 13 is arranged into the inwards sinking arc part, so that not only is the material saved, but also the screen mesh is firmer, and the bars are not dropped; the section of the sector 12 is formed by surrounding a first edge 121, a second edge 122, a third edge 123, a fourth edge 124 and a fifth edge 125, the first edge 121 is parallel to the Y axis, the included angle formed by the second edge 122 and the Y axis is 18 °, an arc with a radius of 5mm is arranged at the joint of the first edge 121 and the second edge 122, the included angle formed by the third edge 123 and the X axis is 14 °, a chamfer with a radius of 0.2mm is arranged at the joint of the second edge 122 and the third edge 123, an included angle formed by the fourth edge 124 and the Y axis is 10 °, a chamfer with a radius of 0.35mm is arranged at the joint of the third edge 123 and the fourth edge 124, the fifth edge 125 is parallel to the Y axis, an arc with a radius of 5mm is arranged at the joint of the fourth edge 126 and the fifth edge 127, an included angle formed by the second edge 122 and the third edge 123 is 58 °, and an included angle formed by the third edge 123 and the fourth edge 124 is 94 °; the fan-shaped structure of the fan-shaped part 12 can ensure that the bar 1 and the reinforcing ring 2 are just propped against each other, so that the bar is firmer, the screening efficiency is improved by 20% compared with that of the traditional screening system, the bar has an accurate screening groove, the screening quality can be improved, the energy is saved, and the bar has a stable structure; the height of the bar 1 is 8-10mm, and the height from the bottom of the insertion part 11 to the center of the arc part is 1.5-5mm, so that the bar 1 has certain structural strength.

In summary, the bar 1 is fixed to the upper flange 3 and the lower flange 4, so that the stability of the bar 1 is ensured; the reinforcing ring 2 and the bar 1 are connected by adopting high-strength metal glue, and the strength of the bar 1 cannot be reduced by adopting the glue, so that the screen is not firm; the cross section of the insertion part 11 is arranged in a dovetail shape, and the left side surface and the right side surface of the insertion part 11 are arranged at a certain angle, so that the structure is firmer and the practicability is good; the middle waist part 13 is arranged into an inward-concave arc part, so that not only is the material saved, but also the screen is firmer; the fan-shaped structure of the fan-shaped part 12 can ensure that the bar 1 and the reinforcing ring 2 are just propped against each other, so that the bar is firmer, the screening efficiency is improved by 20% compared with that of the traditional screening system, the bar has an accurate screening groove, the screening quality can be improved, the energy is saved, and the bar has a stable structure; the height of the bar 1 is 8-10mm, and the height from the bottom of the insertion part 11 to the center of the arc part is 1.5-5mm, so that the bar 1 has certain structural strength.

It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form, and any simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides an internal flow formula screen cloth, including last flange (3), lower flange (4), a plurality of beaded finish (2) and a plurality of stick (1), go up flange (3), beaded finish (2) and lower flange (4) parallel arrangement, its characterized in that: a plurality of tooth grooves are formed in the outer side of each reinforcing ring (2), the tooth grooves are uniformly distributed around the center of each reinforcing ring (2), and the bars (1) are inserted into the tooth grooves; the bar (1) is divided into an insertion part (11) and a fan-shaped part (12), the insertion part (11) is inserted into the tooth socket, and a middle waist part (13) is arranged at the connection part of the insertion part (11) and the fan-shaped part (12); glue is arranged between the bar (1) and the tooth grooves for connection.

2. The in-flow screen of claim 1, wherein: the reinforcing ring (2) is a circular ring integrally cut on the steel plate.

3. The in-flow screen of claim 1, wherein: the cross section of the insertion part (11) is in a dovetail shape.

4. The in-flow screen of claim 3, wherein: the included angle of the left side surface and the right side surface of the insertion part (11) is 1-40 degrees.

5. The in-flow screen of claim 1, wherein: the middle waist part (13) is inwards sunken to form an arc part.

6. The in-flow screen of claim 5, wherein: the radius of the circular arc part is 0.5-1.2 mm.

7. The in-flow screen of claim 1, wherein: the glue is high-strength metal glue.

8. The in-flow screen of claim 1, wherein: the cross section of the sector (12) is surrounded by a first edge (121), a second edge (122), a third edge (123), a fourth edge (124) and a fifth edge (125), the first edge (121) is parallel to the Y axis, the second edge (122) forms an included angle of 18 degrees with the Y axis, the joint of the first edge (121) and the second edge (122) is provided with an arc with the radius of 5mm, the included angle formed by the third edge (123) and the X axis is 14 degrees, a chamfer with the radius of 0.2mm is arranged at the joint of the second edge (122) and the third edge (123), the included angle between the fourth edge (124) and the Y axis is 10 degrees, a chamfer with the radius of 0.35mm is arranged at the joint of the third edge (123) and the fourth edge (124), the fifth edge (125) is parallel to the Y axis, and the joint of the fourth edge (124) and the fifth edge (125) is provided with an arc with the radius of 5 mm.

9. The in-flow screen of claim 1, wherein: the height of the bar (1) is 8-10 mm; the height from the bottom of the insertion part (11) to the center of the circular arc part is 1.5-5 mm.

10. The in-flow screen of claim 1, wherein: the bar (1) is fixed with the upper flange (3) and the lower flange (4), and the distance between every two adjacent reinforcing rings (2) is equal.