CN211488523U

CN211488523U - Multistage screening sieving machine

Info

Publication number: CN211488523U
Application number: CN201922378278.3U
Authority: CN
Inventors: 马大勇; 刘洪林; 李振兴
Original assignee: Beijing Guyun Concrete Co ltd
Current assignee: Beijing Guyun Concrete Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-09-15
Anticipated expiration: 2029-12-25

Abstract

The utility model relates to a multistage screening sieving machine, which comprises a vertically arranged frame, wherein a vibrating screen part is arranged on the frame, and the vibrating screen part comprises a material blocking part which is provided with an upper end opening and a lower end opening and is provided with an opening at one end in the horizontal direction; a plurality of vibrating screens which are inclined from the inside of the material blocking part to an opening of the material blocking part in the horizontal direction and are sequentially reduced in height are arranged in the material blocking part, the plurality of vibrating screens are arranged adjacently, and the upper surfaces of the vibrating screens are positioned on the same plane; the screen holes of the vibrating screen are sequentially increased downwards along the inclined direction of the vibrating screen; the shape of the vibrating screen is matched with the inner shape of the material blocking part; and the vibrating screen part is provided with a vibrating motor for driving the vibrating screen to move. The utility model has the advantages of multistage screening, improvement material screening efficiency.

Description

Multistage screening sieving machine

Technical Field

The utility model belongs to the technical field of the technique of concrete processing equipment and specifically relates to a multistage screening sieving machine is related to.

Background

The concrete is a building material widely applied to civil engineering, cement is used as a cementing material, and sand and stone are used as aggregates; mixing with water at a certain proportion, stirring, molding, and maintaining. The post-mixing of the concrete is very important. Before the stirring process, need sieve the grit so that can improve the quality and the performance of concrete to the grit addition volume of different particle sizes controls in the stirring process. The sizes of the sand and the stone cannot be too large or too small. Generally, sand is classified into a plurality of stages according to particle size during concrete processing.

The patent of the Chinese utility model with the publication number of CN207271597U discloses a vibrating screen for a batching machine of a concrete mixing plant, which comprises a supporting frame, wherein protection plates are arranged on the supporting frame, a vibrating screen is arranged between the protection plates, a material bearing space is arranged below the vibrating screen, one side of the vibrating screen comprises a dustpan, and one side of the vibrating screen also comprises a vibrating motor arranged on the supporting frame; when the material that waits to stir falls into on the shale shaker, the material of too big granule is discharged from dustpan exit one by one under the effect of vibrating motor vibration, and the finer material of granule just falls into the below through the shale shaker gap, and the shale shaker top can also add the screen cloth of establishing different sieve meshes. This prior art has used vibrating motor to sieve from great granule material, realizes the automation of sieve material process, has also improved work efficiency greatly.

The above prior art solutions have the following drawbacks: only can divide coarse grain and fine particle material into two once, need add the screen cloth that establishes littleer mesh on the shale shaker to the fine particle material subdividing once more can sieve out the material of required particle diameter with the granule that sieves out earlier, and the process is repeated, loaded down with trivial details.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a multistage screening sieving machine has multistage screening, improves the advantage of material screening efficiency.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a multi-stage screening and vibrating screen machine comprises a vertically arranged rack, wherein a vibrating screen part is arranged on the rack and comprises a material blocking part which is hollow inside, is provided with an opening at the upper end and the lower end and is provided with an opening at one end in the horizontal direction; a plurality of vibrating screens which are inclined from the inside of the material blocking part to an opening of the material blocking part in the horizontal direction and are sequentially reduced in height are arranged in the material blocking part, the plurality of vibrating screens are arranged adjacently, and the upper surfaces of the vibrating screens are positioned on the same plane; the screen holes of the vibrating screen are sequentially increased downwards along the inclined direction of the vibrating screen; the shape of the vibrating screen is matched with the inner shape of the material blocking part; and the vibrating screen part is provided with a vibrating motor for driving the vibrating screen to move.

By adopting the technical scheme, when the materials are screened, the materials are firstly screened on the uppermost vibrating screen once, the materials smaller than the screen holes of the vibrating screen fall off from the vibrating screen, and the materials larger than the screen holes of the vibrating screen move to the next vibrating screen along the vibrating screen to be screened again; after screening many times, the material that the particle size is the biggest is discharged from the opening that keeps off the material portion to realize the multistage screening of material, accelerated the screening speed of material.

The utility model discloses further set up to: the vibrating screen part is provided with a connecting part extending out of the vibrating screen part; the connecting part is elastically connected with the frame by a damping device.

Through adopting above-mentioned technical scheme, because vibrating motor can produce great vibration, utilize damping device can alleviate the influence of sieving machine to ground in the operation process.

The utility model discloses further set up to: a supporting plate extending towards the inside of the material blocking part is arranged on the inner wall of the lower part of the material blocking part; the backup pad all is parallel with the shale shaker and supports the shale shaker inside the portion of keeping off the material.

Through adopting above-mentioned technical scheme, utilize the backup pad to support the shale shaker.

The utility model discloses further set up to: the vibrating screen comprises an external fixing frame opposite to the supporting plate; the supporting plates comprise first supporting plates which are oppositely arranged on two inner walls of the material blocking part; a plurality of limiting holes are formed in the surface, opposite to the first supporting plate, of the fixing frame at intervals; and a plurality of limiting blocks which are matched with the limiting holes in shape and can be inserted into the limiting holes are arranged at the positions, opposite to the limiting holes, on the first supporting plate.

Through adopting above-mentioned technical scheme, be convenient for install the shale shaker on keeping off material portion, be favorable to changing the shale shaker simultaneously.

The utility model discloses further set up to: an attachment strap parallel to the vibrating screen is arranged below the adjacent fixed frames, and the attachment strap supports the adjacent fixed frames respectively; the two ends of the butt strap in the length direction are respectively fixedly connected with the first supporting plates which are arranged oppositely.

Through adopting above-mentioned technical scheme, because the shale shaker needs to bear the weight of the material, the easy deformation of long-time operation back, the attachment strap can play further supporting role to the shale shaker.

The utility model discloses further set up to: the fixed frame of shale shaker is located the vertical limiting plate that is provided with upwards stretching in both ends of attachment strap length direction, the limiting plate respectively with keep off material portion butt and can dismantle the connection.

Through adopting above-mentioned technical scheme, because the vibration can cause the shale shaker up-and-down motion, bolted connection has played fine fixed action to the shale shaker when making things convenient for the shale shaker to dismantle.

The utility model discloses further set up to: a closing-up part connected with the material blocking part is arranged at the lower part of the vibrating screen; the upper opening and the lower opening of the closing-in are narrowed downwards; the number of the closing-in ports is matched with the number of the vibrating screens.

Through adopting above-mentioned technical scheme, conveniently collect the material that falls through the shale shaker.

The utility model discloses further set up to: a discharge hopper is arranged at an opening of the material blocking part in the horizontal direction; the upper surface of the discharge hopper and the upper surface of the vibrating screen are positioned on the same plane; one end of the discharge hopper, which is far away from the material blocking part, extends out of the rack.

By adopting the technical scheme, the screened large-particle-size materials are conveniently collected.

The utility model discloses further set up to: the discharge hopper is detachably connected with the material blocking part.

Through adopting above-mentioned technical scheme, be convenient for go out the change and the maintenance of hopper.

To sum up, the utility model discloses a beneficial technological effect does:

1. when the materials are screened, the materials are sequentially screened from top to bottom according to the order of the particle sizes from small to large according to the difference of the sizes of the screen holes of the vibrating screen, so that the multi-stage screening of the materials is realized, and the screening speed of the materials is accelerated;

2. the vibration sieve is convenient to replace in a bolt connection and insertion mode;

3. set up the binding off under the shale shaker, be convenient for collect the material that does not use the particle diameter.

Drawings

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

fig. 2 is a schematic sectional structure of the present invention;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;

fig. 4 is a schematic structural view of the closing-in portion of the present invention;

FIG. 5 is a schematic structural view of the vibrating screen of the present invention;

FIG. 6 is an exploded view of the discharge hopper portion of the present invention;

fig. 7 is a schematic view of the overall structure in another direction of the present invention.

In the figure, 1, a frame; 11. a support pillar; 111. a first support column; 112. a second support column; 12. a fixed seat; 2. a vibrating screen section; 21. a material blocking part; 22. a first support plate; 221. a limiting block; 23. a second support plate; 24. a butt strap; 25. blocking the platform; 251. a first connecting plate; 252. building a platform; 26. a first vibrating screen; 261. a fixing frame; 262. a parting strip; 263. a limiting hole; 264. a limiting plate; 27. a second vibrating screen; 28. a third vibrating screen; 29. a connecting portion; 3. a discharge hopper; 31. a base plate; 32. a striker plate; 33. a second connecting plate; 4. closing up; 41. a discharging barrel; 5. a damping spring; 6. a vibration motor.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a multistage screening sieving machine, including frame 1 and the sieve portion 2 that shakes that is located frame 1. The frame 1 includes the square fixing base 12 of bottom, and the upper surface in the 12 four corners of fixing base is vertical respectively to be provided with the support column 11 that upwards stretches out. The supporting column 11 is fixedly connected with the fixed seat 12. The supporting column 11 includes a first supporting column 111 disposed on two adjacent corners of the fixing base 12 and a second supporting column 112 disposed on the other two adjacent corners. The height of the first support column 111 is greater than the height of the second support column 112.

The vibrating screen section 2 is located at the top end of the support column 11. The vibrating screen part 2 comprises a material blocking part 21 which is obliquely arranged, hollow inside and approximately U-shaped with openings at the upper end and the lower end. The high end of the material blocking part 21 is located between the opposite first supporting columns 111, and the low end is located between the two opposite second supporting columns 112. The U-shaped mouth of the material blocking part 21 is located at the lower end of the material blocking part 21. The side walls of the material blocking part 21 are all vertically arranged. Connecting parts 29 are respectively arranged on the outer surfaces of the side walls opposite to the material blocking part 21 and close to the first supporting column 111 and the second supporting column 112. The connecting part 29 is fixedly connected with the material blocking part 21. The bottom end of the connecting portion 29 is opposite to the top end of the support column 11. The connecting portion 29 and the supporting column 11 are elastically connected by the damper spring 5, so that the vibrating screen portion 2 is fixed to the frame 1. A vibration motor 6 fixedly connected with the material blocking part 21 is arranged on the outer surface of the side wall opposite to the material blocking part 21 and between the first supporting column 111 and the second supporting column 112.

Referring to fig. 2 and 4, a first support plate 22 extending into the material blocking portion 21 is disposed at the bottom end of the inner surface of two opposite side walls of the material blocking portion 21, and a second support plate 23 extending into the material blocking portion 21 is disposed at the bottom end of the inner surface of the side wall of the material blocking portion 21 far away from the U-shaped opening. The upper surfaces of the first support plate 22 and the second support plate 23 are located on the same plane. The first supporting plate 22 and the first supporting plate 22 are both fixedly connected with the material blocking part 21. A plurality of butt straps 24 are arranged between the two opposite first supporting plates 22 at intervals along the length direction of the material blocking part 21, and two ends of the butt straps 24 in the length direction are respectively fixedly connected with the opposite first supporting plates 22. The upper surface of the strap 24 is located on the same plane as the upper surface of the first support plate 22.

Referring to fig. 5, the first support plate 22, the second support plate 23, and the butt plate 24 are provided with a first vibrating screen 26, a second vibrating screen 27, and a third vibrating screen 28, which are square and match the inner shape of the dam portion 21, along the longitudinal direction of the first support plate 22. The first vibrating screen 26, the second vibrating screen 27 and the third vibrating screen 28 are adjacently arranged from high to low in sequence.

The first vibrating screen 26 includes an outer fixing frame 261 and inner spacers 262 spaced apart from each other, and the spacers 262 are disposed along the length direction of the first support plate 22. The upper surface of the fixing frame 261 is located on the same plane as the upper surface of the division bar 262. The fixing frame 261 is fixedly connected with the division bar 262. The fixing frame 261 is supported inside the stopper portion 21 by abutting against the first support plate 22, the second support plate 23, and the butt plate 24.

The second and third vibrating

screens

27 and 28 are identical in structure to the first vibrating screen 26. The distance between the division bars 262 of the first, second and third vibration screens 26, 27 and 28 increases in sequence. The fixing frames 261 of the adjacent shakers abut against each other and the portions of the fixing frames 261 abutting against each other are supported by the same straps 24.

Referring to fig. 2 and 3, a blocking platform 25 is disposed at the opening of the material blocking portion 21. Two ends of the blocking platform 25 in the length direction are respectively fixedly connected with two opposite side walls of the blocking part 21. The top surface of the baffle 25 is in the same plane as the top surface of the third vibrating screen 28. The lower part of the end of the blocking platform 25 facing the third vibrating screen 28 is provided with a landing 252 extending towards the third vibrating screen 28, and the blocking platform supports the third vibrating screen 28. The abutment 252 is fixedly connected to the stop 25.

Referring to fig. 2 and 5, a plurality of limiting holes 263 penetrating the panel surface and arranged at intervals along the length direction of the first support plate 22 are formed on the surface of the fixing frame 261 opposite to the first support plate 22. Referring to fig. 4, a surface of the first support plate 22 opposite to the limiting hole 263 is provided with a limiting block 221 which is matched with the limiting hole 263 in shape and can be inserted into the limiting hole 263. The limiting block 221 is inserted into the limiting hole 263, so that the vibrating screen is fixed inside the material blocking portion 21.

The upper surfaces of the two ends of the fixing frame 261 in the length direction of the access panel 24 are provided with limit plates 264 which vertically extend upwards, and the limit plates 264 are fixedly connected with the fixing frame 261. The stopper plate 264 abuts against the stopper portion 21 and is connected thereto by a bolt. The limit plate 264 is connected with the material blocking part 21 to prevent the vibrating screen from falling off from the support plate in the vibrating process.

Referring to fig. 2 and 4, a closing-in 4 having an inverted truncated-pyramid shape, a hollow interior and an open top and bottom is provided on the lower portion of the vibrating screen 2. The top surface of the closing-in 4 is respectively fixedly connected with the bottom surface of the material blocking part 21, the bottom surface of the butt strap 24 and the butt platform 252. The bottom of binding off 4 is provided with the play feed cylinder 41 with the bottom opening part fixed connection of binding off 4 vertically downwards, and the material that falls down from the shale shaker assembles the material receiving arrangement who falls into the below behind the play feed cylinder 41 through binding off 4.

Referring to fig. 2 and 6, the opening of the material blocking portion 21 is provided with a material discharging hopper 3 extending outwards. The discharging hopper 3 comprises a bottom plate 31 abutted to the blocking platform 25 and a material baffle plate 32 vertically arranged on two sides of the bottom plate. The top surface of the bottom plate 31 and the top surface of the abutment 25 are located on the same plane. Referring to fig. 7, one end of the striker plate 32 in the longitudinal direction abuts against the side wall opposite to the striker portion 21. Referring to fig. 3, a first connecting plate 251 extending downward is disposed at the bottom end of the blocking platform 25, a second connecting plate 33 bent downward is disposed at one end of the bottom plate 31 close to the blocking platform 25, and the first connecting plate 251 and the second connecting plate 33 are connected by bolts.

The width of the end of the discharge hopper 3 close to the material blocking part 21 is equal to the distance between the two opposite side walls of the material blocking part 21, and the discharge hopper 3 is gradually narrowed towards the direction far away from the material blocking part 21. One end of the discharge hopper 3 far away from the material blocking part 21 extends out of the frame 1.

The implementation principle of the embodiment is as follows: the vibrating screens are sequentially arranged at the specified positions on the material blocking part 21 from top to bottom according to the sequence of the screen holes from small to large, then the materials are poured into the material blocking part 21 from the upper part of the first vibrating screen 26, and under the vibration of the vibrating motor 6 and the gravity action of the materials, the materials with the particle size smaller than the screen holes of the first vibrating screen 26 fall into the lower closed opening 4 and are output through the discharging barrel 41; the material with the particle size larger than the mesh of the first vibrating screen 26 enters the second vibrating screen 27 for secondary screening. After the three-time vibrating screen is used for screening, the material with the largest particle size is discharged through the discharge hopper 3, so that primary multi-stage screening of the material is realized, and the screening efficiency of the material is improved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a multistage screening sieving machine, includes frame (1) of vertical setting, be provided with sieve portion (2), its characterized in that of shaking in frame (1): the vibrating screen part (2) comprises a material blocking part (21) which is hollow inside, open at the upper end and the lower end and open at one end in the horizontal direction; a plurality of vibrating screens which are inclined from the inside of the material blocking part (21) to an opening of the material blocking part (21) in the horizontal direction and are sequentially reduced in height are arranged in the material blocking part (21), the plurality of vibrating screens are arranged adjacently, and the upper surfaces of the vibrating screens are positioned on the same plane; the screen holes of the vibrating screen are sequentially increased downwards along the inclined direction of the vibrating screen; the shape of the vibrating screen is matched with the inner shape of the material blocking part (21); and a vibrating motor (6) for driving the vibrating screen to move is arranged on the vibrating screen part (2).

2. The multi-stage screening shaker of claim 1, wherein: the vibrating screen part (2) is provided with a connecting part (29) extending out of the vibrating screen part (2); the connecting part (29) is elastically connected with the frame (1) by a damping device.

3. The multi-stage screening shaker of claim 1, wherein: a supporting plate extending towards the inside of the material blocking part (21) is arranged on the inner wall of the lower part of the material blocking part (21); the supporting plates are parallel to the vibrating screen and support the vibrating screen inside the material blocking part (21).

4. The multi-stage screening shaker of claim 3, wherein: the vibrating screen comprises an outer fixed frame (261) opposite to the support plate; the supporting plate comprises first supporting plates (22) which are positioned on two opposite inner walls of the material blocking part (21) and are oppositely arranged; a plurality of limiting holes (263) are arranged on the surface of the fixing frame (261) opposite to the first supporting plate (22) at intervals; the position of the first supporting plate (22) opposite to the limiting hole (263) is provided with a plurality of limiting blocks which are matched with the limiting hole (263) in shape and can be inserted into the limiting hole (263).

5. The multi-stage screening shaker of claim 4, wherein: an attachment strap (24) parallel to the vibrating screen is arranged below the adjacent fixed frames (261), and the attachment strap (24) supports the adjacent fixed frames (261) respectively; the two ends of the butt strap (24) in the length direction are respectively fixedly connected with the first supporting plates (22) which are arranged oppositely.

6. The multi-stage screening shaker of claim 4, wherein: fixed frame (261) of shale shaker are located the vertical limiting plate (264) that are provided with upwards stretching out in both ends of attachment strap (24) length direction, limiting plate (264) respectively with keep off material portion (21) butt and can dismantle the connection.

7. The multi-stage screening shaker of claim 1, wherein: a closing-in part (4) connected with the material blocking part (21) is arranged at the lower part of the vibrating screen; the closing-in (4) is opened up and down and is narrowed down; the number of the closing-in openings (4) is matched with the number of the vibrating screens.

8. The multi-stage screening shaker of claim 1, wherein: a discharge hopper (3) is arranged at an opening of the material blocking part (21) in the horizontal direction; the upper surface of the discharge hopper (3) and the upper surface of the vibrating screen are positioned on the same plane; one end of the discharge hopper (3) far away from the material blocking part (21) extends out of the rack (1).

9. The multi-stage screening shaker of claim 8, wherein: the discharge hopper (3) is detachably connected with the material blocking part (21).