CN211471954U

CN211471954U - Outflow screen

Info

Publication number: CN211471954U
Application number: CN201922487521.5U
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 outflow screen, including upper flange, lower flange, a plurality of beaded finish and a plurality of stick, upper flange, beaded finish and lower flange parallel arrangement, a plurality of tooth's sockets have all been opened to the beaded finish inboard, the tooth's socket is evenly arranged around the beaded finish, the stick inserts in the tooth's socket, assembles into the sieve; the bar is divided into an insertion part and a fan-shaped part, the insertion part is inserted into a tooth groove of the reinforcing ring, the cross section of the insertion part is in a dovetail shape, a middle waist part is arranged at the joint of the insertion part and the fan-shaped part, and the middle waist part is inwards sunken to form an arc part; the cross section of the insertion part is arranged to be dovetail-shaped, so that the structure is firmer, the middle waist part is arranged to be an inward concave arc part, and the material saving and structure are firmer.

Description

Outflow screen

Technical Field

The utility model belongs to the technical field of papermaking slurrying screening installation, a screen cloth, especially an outflow 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; the paper pulp is arranged outside the screen and is filtered from inside to outside, the paper pulp is filtered to the outside of the screen through gaps between the bars and is good pulp, impurities are left in the screen, and the screen is an outward-flow screen.

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. The structural strength is low and the quality is unstable.

Disclosure of Invention

The utility model aims at solving the problems in the prior art, and provides an outward flow type screen.

In order to achieve the purpose, the outward 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 inner sides of the reinforcing rings, the tooth grooves are uniformly distributed on the reinforcing rings, and the bars are inserted into the tooth grooves to be assembled into a screen plate; the stick divide into insertion part and sector, the insertion part inserts in the tooth's socket of beaded finish, the transversal swallow-tail form of personally submitting of insertion part the insertion part is middle waist with sector junction, middle waist is inwards sunken to form circular arc portion.

More specifically, the reinforcing ring is a circular ring formed by rolling a reinforcing rack and then welding the reinforcing rack.

More specifically, the included angle between the left side surface and the right side surface of the insertion part is 0.2-40 degrees.

More specifically, the radius of the arc part is 0.6-1.2 mm.

More specifically, the radius of the arc part is 1 mm.

Further specifically, the cross-section of sector is formed by first limit, second limit, third limit, fourth edge, fifth limit, sixth limit and seventh limit around, first limit is parallel with the Y axle, the contained angle that second limit and Y axle become is 16, and first limit is equipped with the circular arc that the radius is 3-5mm with the second limit junction, the third limit is parallel with the Y axle, the fourth limit is parallel with the X axle, and third limit and fourth limit junction are equipped with the radius and are 0.2mm chamfer, the contained angle that fifth limit and X axle become is 14, the contained angle that sixth limit and Y axle become is 15, and fifth limit and sixth limit junction are equipped with the chamfer that the radius is 0.3mm, the seventh limit is parallel with the Y axle, and sixth limit and seventh limit junction are equipped with the circular arc that the radius is 3-5 mm.

More specifically, the height of the bar is 8-11 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.

The utility model relates to an outflow screen cloth can realize following technological effect: the cross section of the insertion part is arranged into a dovetail shape, so that the structure is firmer, the middle waist part is arranged into an inward sunken arc part, and the material is saved and the structure 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. a fifth side; 126. a sixth side; 127. and a seventh 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 outflow 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 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 on the reinforcing rings 2, and the bars 1 are inserted into the tooth grooves; the reinforcing ring is formed by rolling reinforcing racks, the assembling mode is that a plurality of reinforcing racks are sequentially arranged in parallel, bars are inserted into tooth grooves in the reinforcing racks to assemble a sieve plate, joints are fixedly connected in a welding mode after the sieve plate is rolled and formed, a certain gap is formed among the bars 1, and the size of the gap is adjusted according to needs; 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 groove of the reinforcement ring 2, the cross section of the insertion portion 11 is dovetail-shaped, an intermediate waist portion 13 is arranged at the connection position of the insertion portion 11 and the sector portion 12, and the intermediate waist portion 13 is recessed inwards to form an arc portion;

as shown in fig. 2, after the rolling and welding of the sieve plate are completed, 1-3 welding seams (2 welding seams with a diameter of 900mm to 1700mm and 3 welding seams with a diameter of more than 1700 mm) are left on each reinforcing ring 2, the reinforcing rings 2 are connected with the rod 1 in a tungsten argon arc welding heating mode, a gap of 1-2mm is left at the joint of the reinforcing rings 2 and the rod 1 in the tungsten argon arc welding during heating, the heating mode adopting the tungsten argon arc welding is superior to the traditional welding, the rod and the reinforcing rings are heated uniformly, the reinforcing rings shrink uniformly after cooling and improve the tightening force of the reinforcing rings to the rack, and the joint strength is improved; as shown in fig. 3, the included angle between the left and right side surfaces of the insertion part 11 of the bar 1 is 0.2-40 degrees, and the left and right side surfaces 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 the arc part formed by the inward recess of the middle waist part 13 is 0.6-1.2mm, and in the utility model, the radius of the arc part is 1 mm; 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 an inward sunken arc part, so that not only is the material saved, but also the screen is firmer; 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, a fifth edge 125, a sixth edge 126 and a seventh edge 127, the first edge 121 is parallel to the Y axis, the included angle formed by the second edge 122 and the Y axis is 16 degrees, an arc with the radius of 3-5mm is arranged at the joint of the first edge 121 and the second edge 122, the third edge 123 is parallel to the Y axis, the fourth edge 124 is parallel to the X axis, a chamfer with the radius of 0.2mm is arranged at the joint of the third edge 123 and the fourth edge 124, the included angle formed by the fifth edge 125 and the X axis is 14 degrees, the included angle formed by the sixth edge 126 and the Y axis is 15 degrees, a chamfer with the radius of 0.3mm is arranged at the joint of the fifth edge 125 and the sixth edge 126, the seventh edge 127 is parallel to the Y axis, an arc with the radius of 3-5mm is arranged at the joint of the sixth edge 126 and the seventh edge 127, the included angle formed by the third edge 123 and the fifth edge 125 is 76, and 127 are arranged, the angle between the fifth side 125 and the sixth side 126 is 89 degrees; 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 8-11mm, 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, in the outward flow type screen, the bar 1 is fixed with 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 in a heating mode of argon tungsten-arc welding, the heating mode of argon tungsten-arc welding is superior to that of traditional welding, the bar and the reinforcing ring are heated uniformly, shrinkage is uniform after cooling, the tightening force of the reinforcing ring to the rack is improved, and the bonding strength is improved; the included angle of the left side surface and the right side surface of the insertion part 11 is 0.2-40 degrees, and the left side surface and the right side surface of the insertion part 11 are arranged to form a certain angle, so that the structure is firmer and the practicability is good; the middle waist part 13 is an inward-concave arc part, the radius of the arc part is 1mm, 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 8-11mm, 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 outflow 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 sockets are formed in the inner side of each reinforcing ring (2), the tooth sockets are uniformly distributed on the reinforcing rings (2), and the bars (1) are inserted into the tooth sockets to be assembled into a sieve plate; stick (1) is divided into insertion part (11) and sector (12), insertion part (11) insert in the tooth's socket of beaded finish (2), the transversal swallow-tail form of personally submitting of insertion part (11) and sector (12) junction are middle waist (13), middle waist (13) are inside sunken formation circular arc portion.

2. The outflow screen of claim 1, wherein: the reinforcing ring (2) is a circular ring formed by rolling a reinforcing rack and then welding.

3. The outflow screen of claim 1, wherein: the included angle of the left side surface and the right side surface of the insertion part (11) is 0.2-40 degrees.

4. The outflow screen of claim 1, wherein: the radius of the circular arc part is 0.6-1.2 mm.

5. The outflow screen of claim 4, wherein: the radius of the circular arc part is 1 mm.

6. The outflow screen of claim 1, wherein: the section of the fan-shaped part (12) is formed by surrounding a first edge (121), a second edge (122), a third edge (123), a fourth edge (124), a fifth edge (125), a sixth edge (126) and a seventh edge (127), the first edge (121) is parallel to the Y axis, the included angle formed by the second edge (122) and the Y axis is 16 degrees, an arc with the radius of 3-5mm is arranged at the joint of the first edge (121) and the second edge (122), the third edge (123) is parallel to the Y axis, the fourth edge (124) is parallel to the X axis, a chamfer with the radius of 0.2mm is arranged at the joint of the third edge (123) and the fourth edge (124), the included angle formed by the fifth edge (125) and the X axis is 14 degrees, the included angle formed by the sixth edge (126) and the Y axis is 15 degrees, a chamfer with the radius of 0.3mm is arranged at the joint of the fifth edge (125) and the sixth edge (126), and the seventh edge (127) is parallel to the Y axis, the joint of the sixth edge (126) and the seventh edge (127) is provided with an arc with the radius of 3-5 mm.

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

8. The outflow screen of claim 1, wherein: the bar (1) is fixed with the upper flange (3) and the lower flange (4).