CN212018481U - Simple high-yield multi-combination type square swing screen - Google Patents

Abstract

The utility model discloses a simple and direct, square sieve that sways of multiunit box-like of high yield, including the frame, hang and set up sieve case and the eccentric vibration subassembly of drive sieve case wobbling in the frame, a plurality of screening modules that the sieve case distributes including from top to bottom, all be provided with at least one deck screen assembly in every screening module, eccentric vibration subassembly includes driving motor and by driving motor driven eccentric subassembly, and wherein eccentric subassembly installation is fixed in a plurality of screening module intermediate positions, and the eccentric subassembly body sets up along the direction slope that stretches of sieve case. Swing sieve complete machine structure break the conventionality, set up eccentric subassembly between the screen frame, multiplicable screen frame number of piles is in order to improve screening efficiency under the prerequisite of guaranteeing the screening effect, eccentric subassembly slope sets up simultaneously and guarantees that its eccentric rotation plane is parallel with the sieve case, the two does not have under the contained angle, can furthest avoid producing metal fatigue to screen frame or sieve case because of polarization to improve swing sieve life.

Description

Simple high-yield multi-combination type square swing screen

Technical Field

The utility model belongs to the technical field of screening equipment, concretely relates to box-like square swinging screen of multiunit of simple and direct, high yield.

Background

In the industrialized era, in order to meet the requirements of screening operation with large yield and high density, the material screening in the fields of chemical industry, metallurgy, grinding materials, food, building materials, ceramics and the like is mostly realized by adopting a swing screen. In square rocking sieve, for realizing screening, the synchronous high-efficient work of ejection of compact, adopt slope suspension type sieve case more, simultaneously in order to improve the screening effect, adopt the mode that increases the screen cloth number of piles more, but this kind of mode still exists each screen cloth and shakes the circumstances that the point distance is great soon, and each screen cloth atress is inhomogeneous, vibrations are unstable. In addition, a novel efficient square swing sieve in the Chinese patent CN209077140U discloses a suspension type swing sieve, in order to improve the vibration stability and prolong the service life of a sieving machine, the bottom surface of a sieve box is inwards sunken, and the distance between a vibration exciter and the sieve box is reduced, so that the stability of the sieving machine is improved. However, the operation direction of the vibration exciter part of the suspension type screen box has an angle difference with the swinging direction of the screen box of the screen machine, specifically, an included angle exists between the rotation plane of the eccentric block in the vibration exciter and the plane of the screen box, so that the stress of the screen machine is not uniform when the whole machine vibrates, the local metal fatigue of the screen machine occurs after long-time work, and the service life of the whole machine is further influenced.

SUMMERY OF THE UTILITY MODEL

For solving the problem, the utility model discloses a simple and direct, box-like square sieve that sways of multiunit of high yield, the conventionality is broken to the complete machine structure, sets up eccentric subassembly between the screen frame, multiplicable screen frame number of piles is in order to improve screening efficiency and output under the prerequisite of guaranteeing the screening effect, and eccentric subassembly slope sets up simultaneously and guarantees that its eccentric plane of rotation is parallel with the sieve case, and the two does not have under the contained angle, can furthest avoid producing metal fatigue to screen frame or sieve case because of polarization to improve sieve life.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a simple and direct, high-yield multi-combination formula square rocking sieve, includes the frame, hangs screen box and the drive screen box wobbling eccentric vibration subassembly that sets up in the frame, and wherein screen box both ends are provided with feeding storehouse and play hopper respectively, the screen box is including the multistage screening module that distributes from top to bottom, and all is provided with at least one deck screen cloth subassembly in every screening module, eccentric vibration subassembly is including being fixed in the outer driving motor of screen box and setting up in the middle of the multistage screening module and by driving motor driven eccentric subassembly, wherein on eccentric subassembly installation was fixed in certain screening module, and the eccentric subassembly body set up along the slope of the direction that stretches of screen box.

As the utility model relates to a simple, the square rocking screen of multiunit box-like of high yield's further improvement: the screen box comprises a first screening module and a second screening module, the eccentric assembly is fixedly mounted on the second screening module, the lower side surface of the first screening module and the upper side surface of the second screening module are respectively provided with a sealing plate so as to independently seal the first screening module and the second screening module, the feeding bin is provided with two feeding bins which are respectively arranged on the first screening module and the second screening module, and the two feeding bins are communicated through material distributing pipes arranged at intervals; the discharging device is also provided with two discharging devices which are respectively arranged on the first screening module and the second screening module.

As the utility model relates to a simple, the square rocking screen of multiunit box-like of high yield's further improvement: the eccentric subassembly is including being used for the belt to connect driving motor's belt pulley and eccentric block, wherein set up the mounting hole on the rim plate of belt pulley in order to be fixed in the belt pulley with the eccentric block through the connecting plate on, the connecting plate is on a parallel with the screen frame setting to guarantee that eccentric block rotation plane is parallel with screen frame plane.

As the utility model relates to a simple, the square rocking screen of multiunit box-like of high yield's further improvement: the screen cloth subassembly includes the screen frame, is fixed in screen frame on the screen frame sieve, mobile cover establish the screening net on the screen frame and be located sieve and the bouncing ball between the screening net, wherein all set up flutedly on the both ends face of screen frame, and be provided with first sealing member in the recess, screening net both sides are provided with the U-shaped adhesive tape, the U-shaped adhesive tape is followed screening net length direction and is set up.

As the utility model relates to a simple, the square rocking screen of multiunit box-like of high yield's further improvement: the first sealing element is strip rubber which is used for pressing the screen and embedded in the groove in a sealing effect, annular rubber which is integrally connected with the strip rubber is arranged outside the strip rubber, and two ends of the screening screen are fixed with the groove in the screen frame through the strip rubber; the screening net is characterized in that the two sides of the screening net are stretched through the two-side tensioning piece extruding the U-shaped adhesive tape and fixing the U-shaped adhesive tape by bolts, the cross section of the tensioning piece is in a regular trapezoid structure, the U-shaped adhesive tape is nailed on the two sides of the screen cloth by a nailing machine, the trapezoid screen pressing strips are locked through flower-shaped nuts, the net frame is fixed, and the screen cloth is tensioned.

As the utility model relates to a simple, the square rocking screen of multiunit box-like of high yield's further improvement: the screen plate is provided with a plurality of bent parts, the bent parts are arranged along the length direction of the screen plate, and each bent part is arranged along the width direction of the screen plate; every kink is upwards protruding in screen cloth subassembly, and evenly distributed has the blanking hole on the concave surface of sieve.

As the utility model relates to a simple, the square rocking screen of multiunit box-like of high yield's further improvement: the sieve plate is formed by integrally punching plates, and the sieve plate is made of high-strength aluminum materials or aluminum plates, stainless steel or carbon steel sprayed with wear-resistant coatings.

As the utility model relates to a simple, the square rocking screen of multiunit box-like of high yield's further improvement: the screen assemblies are movably arranged on the inner wall of the screen box, the inner walls of two side surfaces of the screen box are provided with limiting parts, each screen assembly is correspondingly arranged below the limiting part, tensioning parts are arranged between the screen assemblies and the limiting parts, and tensioning nuts which penetrate through the side wall of the screen box and are positioned outside the screen box are arranged on the tensioning parts; the U-shaped adhesive tape is positioned between the tensioning piece and the net rack on the inner wall of the screen box, the thickness of the U-shaped adhesive tape is larger than that of the screening net, the U-shaped adhesive tape is bound on two sides of the screen, the screen is tensioned through the trapezoidal net pressing strip, and the net rack is compacted to prevent material leakage.

As the utility model relates to a simple, the square rocking screen of multiunit box-like of high yield's further improvement: the sieve box body is symmetrically arranged in the length direction of the sieve box body.

Advantageous effects

Compared with the prior art, the utility model discloses following beneficial effect has:

first, a simple and direct, box-like square sieve that sways of multiunit of high yield, eccentric subassembly sets up along the length direction slope of sieve case, specifically, the rotation plane of the eccentric block among the eccentric subassembly and the plane parallel arrangement that sieve case locates have the contained angle with the rotation direction of eccentric block in the current sieve that sways and compare with sieve case plane, it is even, scientific to sway sieve case atress, reduces and takes place metal fatigue, improves the life of sieve that sways, comprehensive ability also has fine promotion.

Secondly, the screen box of the multi-combination type square swing screen with simplicity, high yield has a plurality of modules which are arranged in an independent sealing way, so that the screening efficiency of the machine is improved; meanwhile, on the premise of increasing the screen assembly to improve the screening efficiency, the eccentric assembly is positioned between the upper screening module and the lower screening module, so that the eccentric assembly applies relatively uniform force to each screen frame in the screen box, and the damage caused by stress non-alignment and the like is reduced or overcome; can set up five layers of screen frame in every module, this swaying sieve can be two five layers of structures promptly, also can adjust the combination of multiple mode, the simple adjustment of user's accessible, and the split type feeding storehouse of cooperation and the closing plate of pegging graft in the screen cloth below make the machine be equivalent to two kinds of material screening machines of 6, perhaps three kinds of material screening machines of 4, the setting of cooperation eccentric subassembly has greatly improved screening efficiency and screening mode.

Thirdly, the screen plate in the screen assembly adopts an integrally punched aluminum plate, the punched inverted U-shaped bent part on the screen plate improves the strength of the screen plate, and the bent part is used as a partition plate to partition the screen plate into a plurality of partitions so as to limit the vibration area of the bouncing ball, prevent aggregation and ensure the screening effect; the high-quality aluminum material is adopted, so that the weight of the screen box is reduced, the swinging efficiency of the screen box is increased, the vibration weight is reduced, and the energy consumption is reduced; in the manufacturing process of the sieve plate, the sieve plate is integrally formed by punching, the process is simple, welding spots are reduced, and the strength of the sieve plate is ensured.

Fourthly, the multi-combination type square swing screen which is simple, convenient and high in yield has the advantages that the screening net in the screen assembly is movably inserted and fixed on the screen frame, the screen assembly is convenient to disassemble, the first sealing element positioned in the groove of the screen frame is provided with the annular rubber, when the cabin door is closed, the annular rubber is extruded by the cabin door to form sealing, the sealing mode is novel, and meanwhile, the sealing performance of the swing screen is greatly improved; the U-shaped adhesive tape that screening net both sides set up is located between locating part and the sieve incasement wall, presss from both sides tight fixedly through the locating part to screen cloth subassembly, and the locating part can pull screening net to its tensioning, reduces redundant miscellaneous functional structure, embodies the characteristic that the big thing is brief.

Fifth, a simple and direct, box-like square sieve of swaing of multiunit of high yield, eccentric block among the screening subassembly is fixed in the belt pulley rim plate through the connecting plate, is connected to the epaxial comparison of belt pulley with current eccentric block, reduces eccentric subassembly and occupies space in the direction of height, under the prerequisite through increasing the screen cloth number of piles, makes this device volume minimizing, the essence simplify.

Sixth, the utility model is a simple, high-yield, multi-combination type square swing screen,

the screen cloth is easy and convenient to replace, a very simple and convenient design scheme is provided when the screen cloth is assembled and replaced, and the screen cloth can be checked and replaced only by opening the front door and the rear door when the screen cloth is replaced. The process is simple, the space is saved, and the convenient design concept is fully embodied.

A square sieve that sways of multiunit box-like simple and direct, high yield, realize a machine multiple use, 3 kinds of compound mode, the closing plate is changed to the accessible makes a machine work as 2, 4, 6 machines and uses, and spare part modularization, the accessory is general.

Eighth, a square sieve of swaing of multiunit box-like, simple and direct, high yield, change universal even axle hanger for novel elastic support, make the machine performance more stable to reduce the maintenance point.

Drawings

FIG. 1 is a schematic structural view of a square swing screen according to the present invention;

FIG. 2 is a three-dimensional structure diagram of the square swing screen of the present invention;

FIG. 3 is a schematic structural view of a portion of the rocking screen of the present invention;

FIG. 4 is a schematic view of a screen assembly according to the present invention;

FIG. 5 is a partial cross-sectional view of a screen assembly of the present invention;

FIG. 6 is a partial schematic view of a screen assembly and screen box mounting area of the present invention;

the labels in the figure are: 1. the screening machine comprises a frame, 2, a screening box, 201, a first screening module, 202, a second screening module, 203, a feeding bin, 204, a discharging hopper, 205, a material distributing pipe, 206, a limiting part, 207, a tensioning part, 208, a tensioning nut, 209, an observation window, 3, an eccentric vibration component, 301, a driving motor, 302, a wheel disc, 303, an eccentric block, 304, a connecting plate, 4, a screen component, 401, a screen frame, 402, a screen plate, 403, a bending part, 404, strip rubber, 405, annular rubber, 406, a blanking hole, 407, a screening net, 408 and a U-shaped rubber strip.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and specific embodiments, which are provided in the present embodiment on the premise of the technical solution of the present invention.

Example 1

The simple, convenient and high-yield multi-combination type square swing sieve comprises a rack 1, a sieve box 2 hung on the rack 1 through a suspension arm and an eccentric vibration component 3 for driving the sieve box 2 to swing, wherein a feeding bin 203 and a discharging hopper 204 are respectively arranged at two ends of the sieve box 2, the sieve box 2 of the square swing sieve comprises a sieve box 2 shell and a screen component 4 arranged in the sieve box 2 shell, two sealing plates are arranged in the sieve box 2 shell in the embodiment at intervals up and down, and the sealing plates are arranged along the length direction of the sieve box 2 shell so as to divide the sieve box 2 shell into three layers which are distributed up and down. The areas on the upper layer and the lower layer of the screen box 2 in the embodiment are respectively used as a first screening module 201 and a second screening module 202, the two are respectively combined with a feeding bin 203 and a discharging bin 204 to form an independent screening area, wherein the feeding bin 203 and the discharging bin 204 are both provided with two parts and are respectively arranged at two ends of the two screening modules, the two feeding bins 203 are communicated through a material distributing pipe 205, and the material distributing pipes 205 are provided with a plurality of parts and are arranged at intervals.

The eccentric vibration component 3 comprises a driving motor 301 fixed outside the screen box 2 and an eccentric component arranged between the first screening module 201 and the second screening module 202 and driven by the driving motor 301, wherein the eccentric component is fixedly installed between the first screening module 201 and the second screening module 202, the eccentric component is fixedly installed on a sealing plate on the first screening module 201 in the embodiment, and an eccentric component body is obliquely arranged along the extending direction of the screen box 2, so that the rotating plane of an eccentric block 303 in the eccentric component is parallel to the plane where the screen box 2 is located, and compared with the existing swinging screen, the swinging screen box 2 has an included angle with the plane of the screen box 2 in the rotating direction of the eccentric block 303, the swinging screen box 2 is more uniformly and scientifically stressed, and metal fatigue cannot occur on a certain stress point of the screen box 2 or the frame 1, so that the service life of the swinging screen is prolonged. The eccentric assembly comprises a belt pulley and an eccentric block 303, wherein the belt pulley is used for connecting a driving motor 301, a wheel disc 302 of the belt pulley is provided with a mounting hole so as to fix the eccentric block 303 on the belt pulley through a connecting plate 304. Eccentric piece 303 among the screening subassembly is fixed in pulley wheel dish 302 through connecting plate 304, compares with current eccentric piece 303 is connected to the epaxial space that is connected to the pulley, reduces eccentric subassembly and takes up space in the direction of height, under the prerequisite through increasing the screen cloth number of piles, makes this device volume minimizing, smart simplification.

Each screening module is provided with at least one layer of screen assemblies 4, and each screening module in the embodiment is provided with five screen assemblies 4. Every screen cloth subassembly 4 includes screen frame 401, is fixed in screen plate 402 on screen frame 401, movably covers screening net 407 on screen frame 401 and is located screen plate 402 and the bouncing ball between the screening net 407, wherein all set up flutedly on screen frame 401's the both ends face, and be provided with first sealing member in the recess, screening net 407 both sides are provided with U-shaped adhesive tape 408, U-shaped adhesive tape 408 is along screening net 407 length direction setting. The first sealing element comprises strip-shaped rubber 404 clamped in the groove, annular rubber 405 integrally connected with the strip-shaped rubber 404 is arranged outside the strip-shaped rubber 404, and two ends of the screening net 407 are fixed with the groove on the screen frame 401 through the strip-shaped rubber 404; the thickness of the U-shaped adhesive tape 408 is set only by staggering the upper side surface of the U-shaped adhesive tape 408 and the body of the tensioning member 207, the two sides of the sieving net 407 are fixedly tensioned and expanded through the bolts of the tensioning members 207 on the two sides, the cross section of the tensioning member 207 is of a regular trapezoid structure, the structure is more stable, and the U-shaped adhesive tape 408 on the sieving net 407 can be smoothly clamped and pulled to move. In this embodiment U-shaped adhesive tape accessible book-binding machine is fixed in it and sieves the net both sides, and the assembly is simple, and the person of being convenient for uses changes the screening net.

The sieve plate 402 is integrally formed by punching and molding plates, the manufacturing process is simple, the sieve plate 402 in the embodiment adopts the aluminum sieve plate 402, the weight is light, the vibration quantity of the sieve plate can be reduced, and the sieving effect of the sieving machine can be improved. The screen plate 402 in this embodiment may be made of high-quality and high-strength aluminum, stainless steel, carbon steel, or other plates, or a wear-resistant coating may be sprayed on a conventional plate to improve the strength thereof. A plurality of bent parts 403 are stamped on each screen plate 402, the plurality of bent parts 403 are arranged along the length direction of the screen plate 402, and each bent part 403 is arranged along the width direction of the screen plate 402; each bent part 403 protrudes upwards in the screen assembly 4, and blanking holes 406 are uniformly distributed on the concave surface of the screen plate 402. The screen frame 401 is covered with the screen 407, and both ends of the screen are fixed to the screen frame 401. The bouncing balls are distributed at the concave surfaces of two adjacent bending parts 403.

The screen assemblies 4 are movably arranged on the inner wall of the screen box 2, the inner walls of two side surfaces of the screen box 2 are provided with limiting parts 206, each screen assembly 4 is correspondingly arranged below the limiting part 206, a tensioning part 207 is arranged between each screen assembly 4 and the limiting part 206, and a tensioning nut 208 which penetrates through the side wall of the screen box 2 and is positioned outside the screen box 2 is arranged on each tensioning part 207; the U-shaped rubber strip 408 is located between the tension member 207 and the inner wall of the screen box 2, and the thickness of the U-shaped rubber strip 408 is greater than the thickness of the screening net 407, that is, the two sides of the screening net 407 are clamped and fixed by the limiting members 206 and the screen frame 401.

The design of sieve case 2 for following its length direction symmetry in this embodiment makes this sieve case 2 not divide forward and backward, and sieve case 2 both ends can regard as discharge end and feed end wantonly promptly, greatly economizes the user and installs.

Example 2

The specific structure of the simple, high-yield and multi-combination type square swing screen in the embodiment is basically the same as that of the simple, high-yield and multi-combination type square swing screen in the embodiment 1, and the difference is as follows: in the multilayer screen cloth subassembly 4 that sets up in the sieve case 2, through the closing plate of pegging graft in the middle of adjacent screen cloth subassembly 4, can divide into four screening modules about sieve case 2 is inside, and eccentric vibration subassembly 3 is located the ascending middle part in the upper and lower side of a plurality of screen cloth subassemblies 4. A plurality of material distributing separation blades are arranged in the feeding bin 203, each material distributing separation blade corresponds to different screen layers respectively so as to distribute materials into different screen layers, and a discharge hopper 204 single body is arranged at the discharge end of each corresponding screen component 4. In this embodiment, the screen box 2 is independently divided into four small screen machine units by the plugging sealing plate, and a single-layer or multi-layer screen layer can be arranged in each screen machine unit to switch the screen machine into a multi-stage screen machine.

Example 3

The specific structure of the simple, high-yield and multi-combination type square swing screen in the embodiment is basically the same as that of the simple, high-yield and multi-combination type square swing screen in the embodiment 2, and the difference is that: in the multilayer screen cloth subassembly 4 that sets up in the sieve case 2, through the closing plate of pegging graft in the middle of adjacent screen cloth subassembly 4, can divide into six screening modules about sieve case 2 is inside, and eccentric vibration subassembly 3 is located the ascending middle part in the upper and lower side of a plurality of screen cloth subassemblies 4. A plurality of material distributing separation blades are arranged in the feeding bin 203, each material distributing separation blade corresponds to different screen layers respectively so as to distribute materials into different screen layers, and a discharge hopper 204 single body is arranged at the discharge end of each corresponding screen component 4.

Example 4

The specific structure of the simple, high-yield and multi-combination type square swing screen in the embodiment is basically the same as that of the simple, high-yield and multi-combination type square swing screen in the embodiment 2 or 3, and the difference is that: the diameters of blanking holes 406 in screening nets 407 of the multilayer screen layers in each screen machine unit are sequentially reduced from top to bottom, and the screen machine can be further switched into a multi-stage and multi-mode screen machine.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent changes without departing from the technical scope of the present invention.

Claims (9)

1. The utility model provides a simple and direct, square rocking screen of multiunit box-like of high yield, includes frame (1), hangs screen box (2) and drive screen box (2) wobbling eccentric vibration subassembly (3) that sets up in frame (1), wherein screen box (2) both ends are provided with feeding storehouse (203) and play hopper (204) respectively, its characterized in that: sieve case (2) are including the multistage screening module that distributes from top to bottom, and all are provided with at least one deck screen cloth subassembly (4) in every screening module, eccentric vibration subassembly (3) including be fixed in sieve case (2) outer driving motor (301) and set up in the middle of the multistage screening module and by driving motor (301) driven eccentric subassembly, wherein on eccentric subassembly installation was fixed in certain screening module, and the eccentric subassembly body set up along stretching the direction slope of sieve case (2).

2. A simple, high-yield, multi-combination, square, oscillating screen, according to claim 1, wherein: the screening box (2) comprises a first screening module (201) and a second screening module (202), an eccentric assembly is fixedly mounted on the second screening module (202), sealing plates are arranged on the lower side surface of the first screening module (201) and the upper side surface of the second screening module (202) respectively to seal the first screening module and the second screening module independently, two feeding bins (203) are arranged on the first screening module (201) and the second screening module (202) respectively, and the two feeding bins (203) are communicated through material distributing pipes (205) arranged at intervals; the discharge hopper (204) is also provided with two discharge hoppers which are respectively arranged on the first screening module (201) and the second screening module (202).

3. A simple, high-yield, multi-combination, square, oscillating screen, according to claim 2, wherein: the eccentric subassembly is including belt pulley and eccentric block (303) that are used for the belt to connect driving motor (301), wherein set up the mounting hole on rim plate (302) of belt pulley in order to be fixed in the belt pulley with eccentric block (303) through connecting plate (304), connecting plate (304) are on a parallel with screen frame (401) and set up to guarantee that eccentric block (303) rotation plane is parallel with screen frame (401) plane.

4. A simple, high-yield, multi-combination, square, oscillating screen, according to claim 3, wherein: screen cloth subassembly (4) include screen frame (401), be fixed in screen plate (402), mobile cover screen cloth (407) on screen frame (401) and be located screen plate (402) and the bouncing ball between screen cloth (407), wherein all set up flutedly on the both ends face of screen frame (401), and be provided with first sealing member in the recess, screen cloth (407) both sides are provided with U-shaped adhesive tape (408), U-shaped adhesive tape (408) are followed screen cloth (407) length direction and are set up.

5. A simple, high-yield, multi-combination, square, oscillating screen, according to claim 4, wherein: the first sealing element comprises strip-shaped rubber (404) clamped in the groove, annular rubber (405) integrated with the strip-shaped rubber (404) is arranged outside the strip-shaped rubber (404), and two ends of the screening net (407) are fixed with the groove in the screen frame (401) through the strip-shaped rubber (404); the two sides of the screening net (407) are fixedly stretched by bolts of tensioning pieces (207) positioned on the two sides of the screening box (2), and the cross section of each tensioning piece (207) is of a regular trapezoidal structure.

6. A simple, high-yield, multi-combination, square, oscillating screen, according to claim 5, wherein: the screen plate (402) is provided with a plurality of bent parts (403), the bent parts (403) are arranged along the length direction of the screen plate (402), and each bent part (403) is arranged along the width direction of the screen plate (402); each bent part (403) protrudes upwards in the screen assembly (4), and blanking holes (406) are uniformly distributed on the concave surface of the screen plate (402).

7. A simple, high-yield, multi-combination, square, oscillating screen, according to claim 6, wherein: the sieve plate (402) is formed by integrally punching plates, and the sieve plate (402) is made of aluminum alloy, stainless steel or carbon steel.

8. A simple, high-yield, multi-combination, square, oscillating screen, according to claim 7, wherein: the screen assemblies (4) are movably arranged on the inner wall of the screen box (2), the inner walls of two side faces of the screen box (2) are provided with limiting parts (206), each screen assembly (4) is correspondingly arranged below the limiting part (206), a tensioning part (207) is arranged between each screen assembly (4) and each limiting part (206), and a tensioning nut (208) which penetrates through the side wall of the screen box (2) and is positioned outside the screen box (2) is arranged on each tensioning part (207); the U-shaped adhesive tape (408) is positioned between the tensioning piece (207) and the inner wall of the screen box (2), and the thickness of the U-shaped adhesive tape (408) is larger than that of the screening net (407).

9. A simple, high-yield, multi-combination, square, oscillating screen, according to claim 8, wherein: the box body of the sieve box (2) is symmetrically arranged in the length direction of the sieve box, and the discharge end and the feed end of the sieve box (2) are both provided with observation windows (209).

Images