CN216297021U

CN216297021U - Arc-shaped screen

Info

Publication number: CN216297021U
Application number: CN202123098168.5U
Authority: CN
Inventors: 李玉虎
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-04-15
Anticipated expiration: 2031-12-10

Abstract

The utility model discloses a curved screen, which relates to the technical field of curved screen functions and comprises a fixed plate and curved beams, wherein the curved beams are symmetrically fixed on two sides of the fixed plate through spot welding, vertical beams are uniformly fixed at the bottom of the fixed plate through spot welding, cross beams are uniformly fixed on one side of the curved beam and positioned on the vertical beams through spot welding, and a vibration mechanism is arranged on one side of one cross beam; according to the utility model, the U-shaped rod at the back of the sieve bend is driven to rotate continuously by the water falling from the mesh surface of the sieve screen, the polyurethane sheet on the cross beam at the back of the sieve bend is continuously hit while the U-shaped rod rotates, so that the mesh surface of the whole sieve bend vibrates continuously during working, water cannot be coated on the surface of the sieve screen, and the filtering of materials is influenced.

Description

Arc-shaped screen

Technical Field

The utility model relates to the technical field of functions of a sieve bend, in particular to a sieve bend.

Background

The sieve bend is an economical and practical solid-liquid separation device, is mainly used for coal preparation plants and dressing plants to carry out dehydration, desliming, medium removal operation and graded coal slime recovery on materials, and can also be matched with a hydrocyclone for use to effectively grade, dehydrate, desliming and medium removal on fine materials; the sieve bend mainly comprises support, sieve seat, sieve case, sieve bend and pan feeding distributor box, and the dehydration principle of sieve bend shale shaker is by the sharp edge of sieve feed side to the cutting effect of coal slime water, delays the dwell time of material on the sieve to improve screening efficiency, filter away the coal slime water.

The arc-shaped sieve plate widely applied at present is a slotted sieve plate formed by welding wedge-shaped non-magnetic stainless steel wires and T-shaped stainless steel wires through automatic resistance welding, and the sieve plate water baffle is made of stainless steel plates, so that the sieve plate has the defects of heavy weight, high noise, short service life, high maintenance rate, high energy consumption, non-wear resistance and the like, and has serious hole blocking and material leakage phenomena.

To this end, we propose a curved screen.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a curved screen, which aims to solve the problems that a screen of the curved screen is abraded due to the fact that a beater beats a screen surface in the use process of the curved screen provided by the background art, and the screen is easy to block holes due to the fact that materials on the curved screen flow fast.

In order to achieve the purpose, the utility model provides the following technical scheme:

the sieve bend comprises fixed plates and arc-shaped beams, wherein the arc-shaped beams are symmetrically fixed on two sides of each fixed plate through spot welding, vertical beams are uniformly fixed at the bottom of each fixed plate through spot welding, cross beams are uniformly fixed on the vertical beams on one side of each arc-shaped beam through spot welding, and a vibration mechanism is mounted on one side of one cross beam;

the utility model discloses a vibration mechanism, including cylinder, connecting plate, connector, U type pole, pivot, cross recess and breakwater, the lateral wall of cylinder is fixed with the connecting plate through spot welding, swing joint has the pivot in the cylinder, and is located the both ends of pivot and installs the connector, the opposite face of cylinder and connector just is located the pivot and is fixed with U type pole through the spot welding symmetry, one side of U type pole is fixed with the breakwater through the spot welding, the cross recess has been seted up to the both ends symmetry of pivot.

Furthermore, one side of the cross beam is fixed with the connecting plate through a bolt, the U-shaped rod is fixed on the side wall of the rotating shaft, and the width of one side of the U-shaped rod with the water baffle is smaller than that of the U-shaped rod on the other side.

Furthermore, the long one side quality of U type pole width is greater than the short one side of width, two the polyurethane piece is installed to one side of crossbeam, and is located one side of polyurethane piece and inconsistent with U type shelves pole.

Further, two one side of arc-shaped beam is passed through the bolt fastening and is had the backup pad, and the both sides that are located the backup pad have the rotating vane through bearing swing joint, the bottom of backup pad is fixed with the spring through the spot welding symmetry, and the other end that is located the spring is fixed mutually through the blade of spot welding with the rotating vane, one side of rotating vane is evenly fixed with the brush through the adhesion.

Further, the sieve is installed to one side of arc beam and fixed plate, one side of fixed plate is passed through the bolt fastening and is on outside mechanical device casing, the cross recess at pivot both ends can be with the output looks joint of outside motor.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the U-shaped rod at the back of the sieve bend is driven to rotate continuously by the water falling from the mesh surface of the sieve screen, and the polyurethane sheet on the cross beam at the back of the sieve bend is hit continuously while the U-shaped rod rotates, so that the mesh surface of the whole sieve bend vibrates continuously during working, water cannot cover a film on the surface of the sieve screen, and the filtering of materials is influenced;

2. according to the utility model, the rotating column blades on the supporting plate are continuously hit by the falling water drops on the arc-shaped screen, so that the hairbrushes on the rotating blades continuously block and clean the blocked materials of the screen mesh, the falling speed of a solid-liquid mixture on the screen mesh is reduced, the phenomenon of material leakage caused by the fact that the material flows fast on the screen mesh is avoided, meanwhile, the abrasion of the screen mesh is easily accelerated due to the fact that the flowing speed of the material is too fast, and the maintenance frequency of the arc-shaped plate is improved.

Drawings

FIG. 1 is a schematic view of the overall construction of a trommel of the present invention;

FIG. 2 is a schematic view of the overall frame of the trommel screen of the present invention;

FIG. 3 is a schematic view of a trommel mounting polyurethane sheet of the present invention;

FIG. 4 is a schematic view of the overall structure of the vibration mechanism of the present invention;

FIG. 5 is a front view of the entire structure of the support plate of the present invention;

FIG. 6 is a schematic cross-sectional view of the connecting head of the present invention;

FIG. 7 is a schematic cross-sectional view of the front end of the rotating shaft according to the present invention.

In the figure: 1. a fixing plate; 2. an arc beam; 3. a cross beam; 4. erecting a beam; 5. a vibration mechanism; 501. a cylinder; 502. a connecting plate; 503. a connector; 504. a U-shaped rod; 505. a rotating shaft; 506. a cross groove; 507. a water baffle; 6. a support plate; 7. rotating the leaf; 8. a brush; 9. a spring; 10. a polyurethane sheet; 11. and (4) a sieve plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution:

example 1:

as shown in fig. 1-3, the framework of the whole sieve bend is connected with the components, the framework of the sieve bend mainly comprises a fixed plate 1 and a cambered beam 2, the whole sieve bend can be fixed in a mechanical filtering device through the fixed plate 1, a plurality of groups of cross beams 3 and vertical beams 4 are arranged on the fixed plate 1 and the cambered beam 2, the stability and the weighing force of a sieve plate 11 arranged on the sieve bend are higher through the cross arrangement of the cross beams 3 and the vertical beams 4, when a mixture mixed with materials falls on the sieve plate 11, the materials are filtered while rolling on the sieve plate 11 because the sieve plate 11 is arranged in an arc shape;

the cross beam 3 at the rear side of the sieve plate 11 is fixed with the connecting plate 502 on the vibrating mechanism 5, when the whole sieve bend is used for filtering a mixture with less impurities, the mixture falls from the upper end of the sieve bend, partial materials block the sieve plate 11, in order to prevent the filtering effect of the sieve plate 11 from being reduced, at the moment, a beater in mechanical equipment starts to work, the beater beats the sieve plate 11, the vibration of the sieve plate 11 causes the materials in meshes to fall, in the device, the sieve plate 11 is beaten through the rotation of a group of U-shaped rods 504, as shown in figure 4, one side of the U-shaped rods 504 is provided with the water baffle 507, the other side is not provided with the water baffle 507, but the U-shaped rods 504 at the side without the water baffle 507 have longer length, so that the U-shaped rods 504 at the side without the water baffle 507 press the U-shaped rods 504 at the side with the water baffle 507 to tilt, as shown in figure 2, the U-shaped rods 504 at the side with the water baffle 507 abut against the vertical beam 4, when liquid falls off from the screen mesh, part of the liquid stays on the water baffle 507, so that the weight of the U-shaped rod 504 on one side with the water baffle 507 is increased, the U-shaped rod 504 rotates at the moment, the U-shaped rod 504 on the other side starts to strike the vertical beam 4 to drive the whole sieve bend to vibrate, the operation is used for filtering a mixture with less impurities, and when the impurities in the mixture are more, the U-shaped rod 504 is driven by water flow to cause the vibration frequency and amplitude of the sieve bend to fail to vibrate more impurities on the sieve plate 11;

at this moment, a motor of a mechanical device is connected with a cross groove 506 of a rotating rod butted on the rotating shaft 505, the U-shaped rod 504 is driven to rotate through the rotation of the motor, the rotating amplitude and frequency of the U-shaped rod 504 are greatly improved, the U-shaped rod 504 between the column body 501 and the connecting head 503 can be detached, and meanwhile, the U-shaped rod 504 is prevented from hitting the sieve bend for a long time to cause abrasion of the sieve mesh, as shown in fig. 3, a polyurethane sheet 10 is installed at the position of the U-shaped rod 504, which is in contact with the cross beam 3, and a hitting point area of the polyurethane sheet 10 on the sieve bend is poured, so that the overall hitting resistance and the abrasion resistance of the sieve bend are greatly improved.

Example 2:

as shown in fig. 5, the support plates 6 are mounted on the arc-shaped beams 2 at two sides, the rotary vanes 7 are mounted on the support plates 6, the brushes 8 are uniformly mounted at the bottoms of the rotary vanes 7, the bottoms of the brushes 8 abut against the sieve plates 11, and the blades of the rotary vanes 7 are connected with the support plates 6 through the springs 9, so that the blades of the rotary vanes 7 cannot completely rotate, when mixed liquid falls down, the fast liquid impacts the sieve plates 11, the liquid acts on the rotary vanes 7, so that the rotary vanes 7 start to rotate, but the rotary vanes 7 cannot completely rotate under the pulling of the springs 9, so that the rotary vanes 7 continuously rotate back and forth at the bottoms of the support plates 6, and meanwhile, the brushes 8 at the bottoms of the rotary vanes 7 continuously brush the sieve plates 11, so that the sieve plates 11 are kept clean, and on the other hand, the rotary vanes 7 play a role in intercepting the flow of the liquid, the speed of liquid is slowed down when moving on the sieve plate 11, and the reduction of the material filtering effect caused by the too fast liquid flow speed is prevented.

The working process of the utility model is as follows:

the worker fixes the whole sieve bend into the mechanical device, at this time, the mixed material is poured onto the sieve bend, the mixture mixed with the material falls onto the sieve plate 11 for filtration, when part of the filtered liquid falls onto the water baffle 507, part of the liquid stays on the water baffle 507, so that the weight of the U-shaped rod 504 at one side with the water baffle 507 is increased, the U-shaped rod 504 at this time rotates, the U-shaped rod 504 at the other side starts to strike the vertical beam 4, the rotating shaft 505 enables the liquid falling onto the water baffle 507 to fall off, the U-shaped rod 504 at this time returns to the initial position, the U-shaped rod 504 continuously repeats the above operation, and the whole sieve bend vibrates;

when the mixed liquid falls down, the liquid with higher speed impacts the sieve plate 11, and the liquid acts on the rotating blades 7 to enable the rotating blades 7 to start rotating, but the rotating blades 7 cannot completely rotate due to the pulling of the springs 9, so that the rotating blades 7 continuously rotate back and forth at the bottom of the supporting plate 6 to play a role in cutting off water flow;

additionally, when the impurities in the liquid are more, the staff can utilize the cross groove 506 on the rotating shaft 505 to connect the rotating rod of the external motor with the rotating shaft 505, so that the rotating frequency and amplitude of the U-shaped rod 504 driven by the motor are greatly improved, and the filtering effect of the sieve bend is better.

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

Claims

1. Sieve bend, including fixed plate (1) and arc roof beam (2), the both sides of fixed plate (1) are fixed with arc roof beam (2), its characterized in that through the spot welding symmetry: vertical beams (4) are uniformly fixed at the bottom of the fixed plate (1) through spot welding, cross beams (3) are uniformly fixed on one side of the arc-shaped beam (2) and positioned on the vertical beams (4) through spot welding, and a vibration mechanism (5) is installed on one side of one cross beam (3);

vibrations mechanism (5) are including cylinder (501), connecting plate (502), connector (503), U type pole (504), pivot (505), cross recess (506) and breakwater (507), the lateral wall of cylinder (501) is fixed with connecting plate (502) through spot welding, swing joint has pivot (505) in cylinder (501), and is located the both ends of pivot (505) and installs connector (503), the opposite face of cylinder (501) and connector (503) just is located pivot (505) and is fixed with U type pole (504) through the spot welding symmetry, one side of U type pole (504) is fixed with breakwater (507) through the spot welding, cross recess (506) have been seted up to the both ends symmetry of pivot (505).

2. The curved screen of claim 1, wherein: one side of the cross beam (3) is fixed with the connecting plate (502) through a bolt, the U-shaped rod (504) is fixed on the side wall of the rotating shaft (505), and the width of one side of the U-shaped rod (504) with the water baffle (507) is smaller than that of the U-shaped rod (504) on the other side.

3. The curved screen of claim 2, wherein: the long one side quality of U type pole (504) width is greater than the short one side of width, two polyurethane piece (10) are installed to one side of crossbeam (3), and the one side that is located polyurethane piece (10) offsets with U type shelves pole.

4. The curved screen of claim 1, wherein: two there are backup pad (6) one side of arc roof beam (2) through the bolt fastening, and the both sides that are located backup pad (6) have swivel leaf (7) through bearing swing joint, the bottom of backup pad (6) is fixed with spring (9) through the spot welding symmetry, and the other end that is located spring (9) is fixed mutually through the blade of spot welding with swivel leaf (7), one side of swivel leaf (7) is evenly fixed with brush (8) through the adhesion.

5. The curved screen of claim 1, wherein: sieve (11) are installed to one side of arc beam (2) and fixed plate (1), bolt fastening is passed through on the outside mechanical device casing to one side of fixed plate (1), cross slot (506) at pivot (505) both ends can be with the output end joint of outside motor.