CN212597040U - Vibrating screen - Google Patents

Abstract

A vibrating screen comprises a vibrating support, wherein a screening assembly for screening aggregate and a vibrating motor for vibrating the screening assembly are mounted on the vibrating support, a discharging assembly is arranged on the screening assembly, the screening assembly comprises a vibrating frame fixedly connected with the vibrating support, the screening assembly comprises a screen box detachably connected with the vibrating frame, the screening assembly is of a multi-layer screening structure and comprises an upper screen and a lower screen spliced with the upper screen, the upper screen and the lower screen are located in the screen box, the screen mesh aperture of the upper screen is larger than that of the lower screen, and a material guide groove for blanking is formed in one end, close to the ground, of the lower screen, in the screen box; the discharging assembly comprises a distributing part, two notches used for separating different positions of granules are formed in the distributing part, a finished product outlet pipe and a waste granule outlet pipe are fixedly connected to the notches in the distributing part respectively, the finished product outlet pipe is communicated with the lower sieve mesh, and the waste granule outlet pipe is communicated with the upper sieve mesh. This application has the multilayer screening, the higher effect of screening efficiency.

Description

Vibrating screen

Technical Field

The application relates to the technical field of screening equipment, in particular to a vibrating screen.

Background

The application of the vibrating screen is very wide, and the vibrating screen can not be separated from the vibrating screen in all aspects of life from mining, metallurgy, coal, petrochemical industry, water conservancy and electric power, light industry, construction, transportation, even flour processing and the like. The shale shaker utilizes the vibration of vibrating motor excitation as the vibration source, makes the material by throwing on the screen cloth, simultaneously makes rectilinear motion forward, the material passes through feed inlet to screen cloth from the batcher on, open vibrating motor vibration screen cloth, make the tiny particle material pass the screen cloth and leak down, and the large granule material is then by the separation on the screen cloth, thereby screen out the oversize thing (promptly, by the large granule material of separation on the screen cloth), the undersize thing (promptly, pass the tiny particle material that the screen cloth spilt), discharge from respective export respectively.

Chinese patent No. CN108188011A discloses a vibrating screen for removing sand from alumina, which comprises: the box body is internally limited with a cavity and is provided with a feed inlet, a discharge outlet and a slag outlet which are communicated with the cavity; the screen cloth is established in the box and is separated into the sieve material room that is located screen cloth upper portion and the discharge chamber that is located the screen cloth lower part with the cavity, and feed inlet and slag notch communicate with sieve material room respectively, and discharge gate and discharge chamber intercommunication, feed inlet and slag notch are located the relative both sides of sieve material room respectively and the level of slag notch is less than the level of feed inlet, and the screen cloth extends to the downward sloping of slag notch position from the feed inlet position. According to the vibrating screen provided by the embodiment of the invention, the screen is inclined downwards and extends from the position of the feed inlet to the position of the slag outlet, the driving piece drives the screen to vibrate, and the vibrating screen can effectively remove sand in alumina, meets the requirements of electrolysis production, reduces the electrolysis cost, reduces the frequency of excessive discharge of electrolysis smoke and improves the economic benefit.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the screen cloth in this technical scheme sets up to the one deck, and the screening ability of the shale shaker that the single-deck screen cloth set up is relatively weak, and the grit in the aluminium oxide probably can't once screen to the standard, need carry out repeated screening to need to repeat the operation equipment and screen, lead to screening efficiency lower.

SUMMERY OF THE UTILITY MODEL

In order to improve the defect that the screening efficiency of shale shaker is low, this application provides a shale shaker, has the higher advantage of screening efficiency.

The application provides a shale shaker adopts following technical scheme: a vibrating screen comprises a vibrating support, wherein a screening assembly for screening aggregate and a vibrating motor for vibrating the screening assembly are mounted on the vibrating support, a discharging assembly is arranged on the screening assembly, the screening assembly comprises a vibrating frame fixedly connected with the vibrating support, the screening assembly comprises a screen box detachably connected with the vibrating frame, the screening assembly is of a multi-layer screening structure and comprises an upper screen and a lower screen spliced with the upper screen, the upper screen and the lower screen are located in the screen box, the screen mesh aperture of the upper screen is larger than that of the lower screen, and a guide chute for blanking is arranged in the screen box at one end, close to the ground, of the lower screen; the discharging assembly comprises a material distributing part, two notches used for separating different positions of granules are formed in the material distributing part, a finished product outlet pipe and a waste granule outlet pipe are fixedly connected to the notches in the material distributing part respectively, the finished product outlet pipe is communicated with the lower sieve mesh, and the waste granule outlet pipe is communicated with the upper sieve mesh.

By adopting the technical scheme, the granules are fed from the upper screen, the granules are screened in different levels through different apertures of the screens on the upper screen and the lower screen, the waste granules with larger particle sizes are screened by the screen with large aperture of the upper screen and then retained on the upper screen, and the waste granules retained on the upper screen are discharged through the waste granule outlet pipe on the material separating piece; the granule after the upper screen filters enters into lower screen, screen cloth screening through lower screen cloth, can be detained finished product granule on lower screen cloth and discharge, finished product granule detained on lower screen cloth is discharged through the finished product outlet pipe on the part of expecting, all the other unqualified fines enter into the baffle box and discharge, the granule of different particle diameters is screened and is distinguished, select qualified granule, and separate the granule of different particle diameters of discharge through ingenious setting up the part of expecting, mutual noninterference, the automatic selection to the granule is distinguished has been refined, screening efficiency has been promoted, and the granule discharge pipe all sets up on the part of expecting, the operating space of shale shaker has not only been saved, also be convenient for dismantle the change.

Preferably, the upper screen and the lower screen are integrally inclined and form an included angle with the horizontal ground.

Through adopting above-mentioned technical scheme, the setting of going up screen cloth and screen cloth slope form is convenient for make the screening detain the aggregate on the screen cloth discharge through self gravity, and in addition the effect of vibration, can be in time quick discharge the aggregate, avoids the aggregate to pile up on the screen cloth.

Preferably, the bottom end faces of the upper screen and the lower screen are provided with notches, the screen is placed on the notches, and a plurality of reinforcing ribs for supporting the screen are fixedly arranged at the notches on the upper screen and the lower screen.

Through adopting above-mentioned technical scheme, the strengthening rib can support fixed screen cloth.

Preferably, one end of the guide chute close to the ground is fixedly connected with a fine particle outlet pipe for guiding the screened materials.

By adopting the technical scheme, the discharged granules can be subjected to polymerization guiding, and the granules are prevented from being spilled when being discharged.

Preferably, the guide chute is detachably connected with the screen box.

Through adopting above-mentioned technical scheme, be convenient for change sieve case and silo.

Preferably, a support plate for supporting the material guide chute is arranged in the vibration frame.

Through adopting above-mentioned technical scheme, support the baffle box of placing in the sieve case.

Preferably, the lower screen and the upper screen are detachably connected with the screen box respectively.

By adopting the technical scheme, the upper screen and the lower screen can be conveniently replaced.

Preferably, install damper between vibration frame and the vibration support, damper includes the fixed column with vibration support fixed connection and the spacing post with vibration frame fixed connection, damper is including passing the elastic component of fixed column and spacing post.

Through adopting above-mentioned technical scheme, can reduce the damage to each part in the vibration screening.

Preferably, be provided with the locking subassembly on the vibration frame, the locking subassembly is including being fixed in fixed block on the wall face of vibration frame both sides and being used for setting up the depression bar of screening subassembly.

Through adopting above-mentioned technical scheme, further fix the compaction to the screening subassembly, prevent rocking of each part in the vibration screening, influence the operation of screening.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the screening component and the discharging component, the screening and distinguishing of the granules with different particle sizes are realized, the automatic selection and distinguishing of the granules are refined, the granule screening efficiency is improved, and the operation space of the vibrating screen can be saved due to the arrangement of the material distributing component;

2. through the setting of locking subassembly and damper, increased the holistic steadiness of shale shaker.

Drawings

Fig. 1 is a schematic view of the overall structure of a vibrating screen.

Fig. 2 is a sectional view taken along the plane a-a of fig. 1.

Fig. 3 is an exploded view of a portion of fig. 1.

Fig. 4 is a schematic structural view of the distributing member.

Description of reference numerals: 1. a vibration bracket; 11. a fixing plate; 12. a support bar; 13. a fastening rod; 2. an electric cabinet; 3. a shock absorbing assembly; 31. fixing a column; 32. an elastic member; 33. a limiting column; 4. a screen assembly; 41. a screen box; 42. a vibration frame; 421. a support pillar; 422. a support plate; 423. a connector tile; 43. feeding a screen mesh; 44. a lower screen mesh; 45. reinforcing ribs; 46. a material guide chute; 461. a fines outlet pipe; 5. a discharge assembly; 51. distributing parts; 511. a finished product guide groove; 5111. a first finished product guide chute; 5112. a second finished product guide chute; 512. a waste chute; 513. a first baffle plate; 514. a second baffle; 52. a finished product outlet pipe; 53. a waste particle outlet pipe; 6. a locking assembly; 61. a pressure lever; 62. an elbow clip; 63. a fixed block; 7. a vibration motor.

Detailed Description

The present application is described in further detail below with reference to fig. 1.

The embodiment of the application discloses a vibrating screen. Referring to fig. 1, the vibrating screen comprises a vibrating support 1, an electric cabinet 2, a vibrating motor 7 and a screening assembly 4 are mounted on the vibrating support 1, a damping assembly 3 is mounted between the screening assembly 4 and the vibrating support 1, and a discharging assembly 5 is arranged on the screening assembly 4.

Referring to fig. 1, the vibration cradle 1 includes a plurality of fixing plates 11 and a support rod 12 fixedly coupled to the fixing plates 11 and vertically disposed. A plurality of through holes are formed in the fixing plate 11, and bolts penetrate through the through holes in the fixing plate 11 to be fixedly connected with the ground so as to fix the vibration support 1. Bracing piece 12 is fixed with fixed plate 11 adoption welding or integrated into one piece's mode, and the welding has the anchorage bar 13 perpendicular to each other with bracing piece 12 between two adjacent bracing pieces 12 for whole shale shaker keeps firm state, improve equipment operating stability in service.

Referring to fig. 1, the electric cabinet 2 is fixed on the support rod 12 and plays a role of controlling the switch, and two vibration motors 7 are installed and respectively installed at two sides of the screening assembly 4.

Referring to fig. 1 and 2, the damping assembly 3 includes a fixed column 31 and an elastic member 32 penetrating through the fixed column 31, one end of the fixed column 31 close to the ground is fixedly connected to the support rod 12, and a welding manner may be adopted, the fixed column 31 may be in the shape of a round bar, a round plate having a contour outer diameter larger than that of the fixed column 31 is disposed at a joint of the fixed column 31 and the support rod 12, and the contour outer diameter of the round plate is larger than that of the elastic member 32, so that the elastic member 32 penetrating through the fixed column 31 may be limited at the fixed column 31, and the elastic member 32 is ensured to have a. The elastic piece 32 can be a hard spring, the elastic piece 32 is provided with a limiting column 33 far away from the fixed column 31, the elastic piece 32 penetrates through the limiting column 33, the outer contour of the limiting column 33 is matched with the inner contour of the elastic piece 32, the horizontal position of the elastic piece 32 can be limited, and the horizontal movement of the elastic piece 32 is prevented. Spacing post 33 and elastic component 32 and fixed column 31 coaxial arrangement set up, and spacing post 33 and fixed column 31 certain distance of interval in the profile in elastic component 32, guarantee that elastic component 32 can normally stretch out and draw back at the shale shaker working process to play the cushioning effect.

Referring to fig. 1 and 2, the screening assembly 4 includes a vibration frame 42 fixedly connected to the limiting column 33 and a screening box 41 detachably connected to the vibration frame 42, a material guide chute 46, a lower screen 44 and an upper screen 43 are sequentially installed in the screening box 41 from bottom to top, and the screening box 41, the material guide chute 46, the lower screen 44 and the upper screen 43 in the screening assembly 4 are integrally inclined and form an included angle of 6 ° with the horizontal ground.

Referring to fig. 2 and 3, the vibration frame 42 includes three rectangular plates that are perpendicular to each other and fixedly connected, two of the rectangular plates are parallel to each other and perpendicular to the other rectangular plate, the two parallel rectangular plates are located on the same end surface of the other rectangular plate, and the plates can be fixed by welding. Vibration frame 42 and sieve case 41 accessible bolt carry out fixed connection, the one end that vibration frame 42 is close to ground is equipped with a plurality of linking plate 423 that suit and fixed connection with damper 3, linking plate 423 is located between the rectangular plate of two parallels for link damper 3 in an organic whole with screening subassembly 4, linking plate 423 keeps away from the vertical riser that is fixed with of terminal surface on ground, the both sides terminal surface of riser and the inside wall face fixed connection of vibration frame 42 can play the effect of firm linking plate 423. A supporting plate 422 fixedly connected with the inner wall surface opposite to the two parallel rectangular plates is arranged between the connecting plates 423, the supporting plate 422 is perpendicular to the two parallel rectangular plates, and an arc-shaped opening is formed in one end, far away from the ground, of the supporting plate 422 and used for supporting and fixing the material guide groove 46. Two parallel rectangular plate one sides on the vibration frame 42 run through the fixed support column 421 that is equipped with of terminal surface, and support column 421 can be cylindric, support column 421 both ends and vibration frame 42 inside wall fixed connection for firm vibration frame 42. The outer surface of the vibration frame 42 is coated with epoxy zinc rich paint and white finish paint to protect the vibration frame 42, delay corrosion speed and achieve the purpose of prolonging the service life of the vibration frame 42.

The material guide groove 46 is hollow and has an open-end prismoid shape, the material guide groove 46 is adapted to the arc-shaped opening on the support plate 422, the edge profiles of two sides of the open end of the material guide groove 46 are turned outwards to form an annular bulge far away from the material guide groove 46, and the end surface of the material guide groove 46 far away from the open end is fixedly communicated and connected with a fine particle outlet pipe 461 for guiding and discharging screened particles, so as to avoid scattering and overflowing to the ground.

The whole sieve case 41 is hollow and has an open cuboid shape, two sides of the open end of the sieve case 41 are outwards turned over to form a clamping groove continuously twice towards the open direction far away from the sieve case 41, the wall surface of the sieve case 41 far away from the open end is provided with an opening matched with the material guide groove 46 in a penetrating mode, the material guide groove 46 is clamped at the opening of the sieve case 41, and the opening of the sieve case 41 is supported and fixed through the annular bulge on the material guide groove 46.

The lower screen 44 is hollow and has an open end, the outer contour of the lower screen 44 is adapted to the inner contour of the screen box 41, and two sides of the open end of the lower screen 44 are continuously turned outwards twice in the direction away from the open end of the lower screen 44 to form a clamping groove adapted to the clamping groove on the screen box 41, so as to fixedly clamp and connect the lower screen 44 placed on the screen box 41. The bottom end surface of the lower screen 44 and the bottom end surface of the screen box 41 form a space for discharging the screened granules out of the vibrating screen from the material guide chute 46 placed on the screen box 41. Lower screen cloth 44 bottom terminal surface runs through and has seted up square opening, the parallel interval of lower screen cloth 44 opening part is provided with a plurality of strengthening ribs 45, strengthening rib 45 is located the outer wall of screen cloth 44 bottom wall down, 30 x 4 band steel is selected for use to strengthening rib 45, the opening part of screen cloth 44 and the fixed screen cloth of having placed on strengthening rib 45 down, the screen cloth aperture is 2.2mm, adjacent hole centre-to-centre spacing is 4mm, each hole center is triangle-shaped evenly distributed, the screen cloth of equipartition makes the shale shaker effect preferred under the vibratory screening aggregate, the screening efficiency is better. The end face of the bottom of one end of the lower screen 44 is concave inwards to form an L-shaped notch, and the end face of the bottom of the L-shaped notch penetrates through to form an opening for discharging the screened particles retained on the lower screen 44 out of the lower screen 44.

The integral structure of the upper screen 43 is the same as that of the lower screen 44, the aperture of the screen placed on the upper screen 43 is 6mm, the center distance between adjacent holes is 8mm, the centers of the holes are uniformly distributed in a triangular shape, and one side of the bottom end face of the upper screen 43 is provided with an opening for discharging the granules retained on the upper screen 43 after being screened.

Referring to fig. 3 and 4, the discharging assembly 5 includes a material distributing member 51, and the material distributing member 51 is fixedly connected to a finished product outlet pipe 52 and a waste particle outlet pipe 53, respectively. The lower screen 44 and the upper screen 43 are sequentially installed in the screen box 41, and the material separating member 51 is placed at the overlapping position of the openings of the screen box 41, the lower screen 44 and the upper screen 43.

The distributing member 51 comprises a first baffle 513 and a second baffle 514, and a finished product guide slot 511 and a waste material guide slot 512 are formed between the first baffle 513 and the second baffle 514. The second baffle 514 is fixedly placed between the material guide groove 46 and the lower screen 44 and is located at the opening end side of the lower screen 44, the second baffle 514 is fixedly connected with the inner side wall surface of the screen box 41, the second baffle 514 is used for blocking the granules in the screen box 41 from spilling out of the vibrating screen, and the granules retained on the lower screen 44 can be prevented from entering the screen box 41 to cause the mixing of the granules with different particle sizes, so that the screening effect is influenced. The finished product guide groove 511 includes a first finished product guide groove 5111 and a second finished product guide groove 5112, the first finished product guide groove 5111 is located between the first baffle 513 and the second baffle 514, is obliquely arranged at an included angle with the horizontal plane, and is perpendicular to the end surfaces of the first baffle 513 and the second baffle 514, one end of the second finished product guide groove 5112 is vertically and fixedly connected with the first baffle 513 and is fixedly connected with the lowest end of the first finished product guide groove 5111, and finished product granules from the lower screen 44 are discharged from the first finished product guide groove 5111 to the second finished product guide groove 5112. First baffle 513 is fixedly connected to the outside of the bottom end surface of upper screen 43, and can prevent waste particles retained on upper screen 43 from mixing with finished granules retained on lower screen 44. One end of the waste guide groove 512 is vertically and fixedly connected with the first baffle 513, and the other end is fixedly connected with the inner side wall surface of the upper screen 43, and is used for discharging waste particles retained on the upper screen 43.

One end of the finished product outlet pipe 52 is provided with a gap, the gap is connected with a connecting block, the finished product outlet pipe 52 is fixedly connected with a finished product guide groove 511 on the material distributing piece 51 into a whole through the connecting block, and the finished product outlet pipe guides and polymerizes the granular materials from the lower screen 44 to avoid scattering and spilling onto the ground. And one end of the finished product outlet pipe 52, which is far away from the material distributing piece 51, is fixedly provided with a circular steel ring, so that burrs at the outlet of the finished product outlet pipe 52 are prevented from scraping finished product granules.

The waste particle outlet pipe 53 is in a circular pipe shape with one open end, the waste particle outlet pipe 53 is far away from the open end face and penetrates through an opening matched with the waste guide groove 512, the waste particle outlet pipe 53 is located on the open end face and is fixedly provided with a circular ring steel ring, and waste particles are prevented from being further damaged by burrs on the outlet of the waste particle outlet pipe 53.

Referring to fig. 3, the locking assembly 6 includes a fixing block 63 and a toggle clamp 62 fixedly coupled to the fixing block 63. Fixed block 63 includes L-shaped piece and plate, and L-shaped piece and plate fixed connection form the recess, and the terminal surface and the sieve case 41 fixed connection of recess notch on the fixed block 63, recess terminal surface and elbow on the fixed block 63 press from both sides 62 fixed connection, be provided with on the screening subassembly 4 with the depression bar 61 of elbow clamp 62 looks adaptation, use elbow clamp 62 to lock depression bar 61, further fasten screening subassembly 4.

The implementation principle of the vibrating screen in the embodiment of the application is as follows: the vibration motor 7 is started through the electric cabinet 2, then the material is thrown from the upper screen 43, and the waste particles can be retained on the upper screen 43 and discharged through the waste particle outlet pipe 53 by screening through the screen of the upper screen 43. The granules filtered by the upper screen 43 enter the lower screen 44, and are screened by the screen of the lower screen 44, so that the finished granules can be retained on the lower screen 44 and discharged through the finished product outlet pipe 52, and the rest unqualified fine materials enter the material guide groove 46 and are discharged through the fine particle outlet pipe 461, and the granules with different particle sizes are screened and distinguished, and qualified granules are selected.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides a vibrating screen, includes vibration support (1), install screening subassembly (4) of screening aggregate and be used for vibrating motor (7) of vibration screening subassembly (4) on vibration support (1), be provided with ejection of compact subassembly (5) on screening subassembly (4), screening subassembly (4) include with vibration support (1) fixed connection's vibration frame (42), its characterized in that: the screening assembly (4) comprises a screening box (41) detachably connected with a vibration frame (42), the screening assembly (4) is of a multi-layer screening structure, the screening assembly (4) comprises an upper screen (43) and a lower screen (44) spliced with the upper screen (43), the upper screen (43) and the lower screen (44) are located in the screening box (41), the aperture of the screen of the upper screen (43) is larger than that of the lower screen (44), and a guide chute (46) for blanking is arranged in the screening box (41) at one end, close to the ground, of the lower screen (44); the discharging assembly (5) comprises a distributing part (51), two notches used for separating different positions of granules are formed in the distributing part (51), a finished product outlet pipe (52) and a waste granule outlet pipe (53) are fixedly connected to the notches in the distributing part (51) respectively, the finished product outlet pipe (52) is connected and communicated with the lower sieve mesh (44), and the waste granule outlet pipe (53) is connected and communicated with the upper sieve mesh (43).

2. The vibratory screen of claim 1, wherein: the upper screen (43) and the lower screen (44) are integrally inclined and form an included angle with the horizontal ground.

3. The vibratory screen of claim 2, wherein: go up screen cloth (43) and all seted up the notch with screen cloth (44) bottom terminal surface down, placed the screen cloth on the notch, go up screen cloth (43) and the fixed strengthening rib (45) that are used for supporting the screen cloth of notch department on screen cloth (44) down.

4. The vibratory screen of claim 1, wherein: and a fine particle outlet pipe (461) for guiding the fine particles is fixedly connected to one end, close to the ground, of the material guide groove (46).

5. The vibratory screen of claim 4, wherein: the guide chute (46) is detachably connected with the screen box (41).

6. The vibratory screen of claim 1, wherein: and a supporting plate (422) for supporting the material guide groove (46) is arranged in the vibration frame (42).

7. The vibratory screen of claim 1, wherein: the lower screen (44) and the upper screen (43) are detachably connected with the screen box (41) respectively.

8. The vibratory screen of claim 1, wherein: install damper (3) between vibration frame (42) and vibration support (1), damper (3) including with vibration support (1) fixed connection's fixed column (31) and with vibration frame (42) fixed connection's spacing post (33), damper (3) including passing elastic component (32) of fixed column (31) and spacing post (33).

9. The vibratory screen of claim 1, wherein: the vibrating frame (42) is provided with a locking assembly (6), and the locking assembly (6) comprises fixing blocks (63) fixed on two side wall surfaces of the vibrating frame (42) and pressing rods (61) used for fastening the screening assemblies (4).

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