CN113814161A - Blockage cleaning device for screen of mineral separation vibrating screen - Google Patents

Abstract

The invention relates to the technical field of mineral separation devices, and particularly discloses a blockage removing device for a mineral separation vibrating screen, wherein a screw rod is connected to power ends of driving motors arranged on two side walls at the rear end of a screen box, a slide block is sleeved on the periphery of the screw rod in a threaded manner, two end faces of a blockage removing roller transversely arranged below the screen are respectively connected with a shaft body, sliding grooves are formed in the two side walls of the screen box corresponding to the shaft bodies, an ejector pin is sleeved in a groove hole formed in the surface of the blockage removing roller in a sliding manner, a spring is connected between the inner end of the ejector pin and the inner end of an inner cavity of the groove hole, the outer end of the shaft body is rotatably connected with the inner side face of the slide block, a gear sleeved on the outer end of the shaft body and close to the outer end of the shaft body is meshed and matched with racks on the two side walls of the screen box, a sealing part is connected to the inner cavity of the sliding grooves, locking parts for opening and closing the sealing parts from the middle positions are respectively arranged at the front and the front ends of ring bodies rotatably sleeved on the corresponding to the sliding grooves, the adjacent screen holes are equal in horizontal spacing distance, the arc length between the slotted holes is equal to the longitudinal clear distance of the sieve pores; the problem of the clear stifled work efficiency of screen cloth is low is solved.

Description

Blockage cleaning device for screen of mineral separation vibrating screen

Technical Field

The invention relates to the technical field of mineral separation devices, in particular to a blockage removing device for a screen of a mineral separation vibrating screen.

Background

The vibrating screen operates by utilizing reciprocating rotary type vibration generated by vibrator excitation. The upper rotary heavy hammer of the vibrator makes the screen surface generate plane rotary vibration, the lower rotary heavy hammer makes the screen surface generate conical surface rotary vibration, and the combined effect makes the screen surface generate re-rotary vibration. The material moving track of the vibrating screen can be divided into a linear vibrating screen (linear screen machine) and a circular vibrating screen. The vibrating screen is a screening machine widely used in coal industry and other industries for grading, washing, dewatering and medium removing of materials. The linear screen machine is widely applied by the advantages of high production efficiency, good grading effect, convenient maintenance and the like, and particularly, the linear screen machine is more widely applied in the mineral separation industry. In the working process, the linear screen machine utilizes the vibration of a vibration motor as a vibration source to enable materials to be thrown up on the screen and to move forwards in a linear mode, the materials uniformly enter a feeding hole of the screening machine from the feeding machine, undersize materials which generate oversize materials through the screen are respectively discharged from respective outlets, and the dewatering effect is achieved.

However, after a long time of operation, the screen often gets clogged by ore particles with a particle size corresponding to the aperture, thereby affecting the efficiency of the screen in screening ore. At present, the blockage removal work of the mesh of the screen is usually carried out by adopting a high-pressure water flow flushing method, so that not only is the water resource wasted, but also the working strength is increased, and the opening rate of the screen is also influenced to a certain extent.

Disclosure of Invention

The invention aims to solve the problems that the blockage removing work of the screen of the linear screen machine is time-consuming and labor-consuming and the turn-on rate of the screen machine is reduced at present.

In order to achieve the purpose, the invention provides the following technical scheme: a blockage removing device for a screen of a mineral separation vibrating screen comprises a screen box, a vibrating motor fixedly mounted at the top of the screen box, a driving motor, a sliding block, a gear, a rack, a blockage removing roller and a sealing part, wherein the screen is fixedly mounted on the inner wall of the screen box;

the sliding block is sleeved on the periphery of the screw rod in a threaded manner;

the screen box is characterized in that the blockage removing roller is transversely arranged below the screen, the circle centers of two end surfaces of the blockage removing roller are respectively and fixedly connected with a shaft body, the two side walls of the screen box are provided with sliding chutes corresponding to the outer ends of the shaft bodies respectively along the direction parallel to the plane of the screen, the surface of the blockage removing roller is uniformly provided with slotted holes, ejector pins are sleeved in the slotted holes in a sliding mode, springs are connected between the inner ends of the ejector pins and the inner ends of the inner cavities of the slotted holes, and the outer ends of the shaft bodies are respectively connected with the inner side surfaces of the sliding blocks in a rotating mode;

the gears are respectively fixedly sleeved on the periphery of the shaft body close to the outer end;

the inner side surface of the rack is fixedly connected to the positions, below the sliding groove, of the two side walls of the screen box, and the rack is meshed and matched with the gear;

the top and bottom ends of the sealing part are respectively and fixedly connected to the top and bottom surfaces of the inner cavity of the sliding chute;

the periphery of the shaft body is rotatably sleeved with a ring body corresponding to the inner cavity of the sliding chute, the front end and the rear end of the ring body are respectively and fixedly connected with a locking part used for opening and closing the sealing part from the middle position, the horizontal distance between the slotted holes is equal to the distance between the transverse sieve holes on the screen, and the arc length between the adjacent slotted holes in the circumferential direction of the blocking cleaning roller is equal to the clear distance between the longitudinal sieve holes on the screen.

Preferably, the sealing part comprises two sealing cloths, an upper sealing strip and a lower sealing strip, and the sealing cloths are fixedly connected to the top surface and the bottom surface of the inner cavity of the sliding chute respectively;

the upper surface of the upper seal is fixedly connected to the bottom end surface of the seal cloth at the upper part in the chute;

the lower surface of the lower seal is fixedly connected to the top end surface of the seal cloth at the inner lower part of the chute;

the top end of the lower seal is clamped in a notch formed in the lower surface of the upper seal along the axial direction in the vertical direction.

Preferably, the locking part comprises a side plate and a wedge block, the side plate is close to the middle of the inner side face of one end of the ring body and is fixedly connected with the two side faces of the wedge block respectively, flanges are arranged at the top end and the bottom end of the inner wall of one end of the ring body, the side plate is located on two sides of the sealing part respectively, and the flanges on the inner wall of the side plate are in sliding contact with the upper surface of the upper sealing strip and the lower surface of the lower sealing strip respectively.

Preferably, the top end of the lower seal is an arc convex surface, and the notch on the lower surface of the upper seal is an arc concave surface.

Preferably, the cambered surface in the notch of the lower surface of the upper seal is a major arc, and the cambered surface at the top end of the lower seal is a major arc.

Preferably, the outer side surface of the screen box is provided with an ear seat which is matched with the front end of the screw rod in a rotating and sleeving manner, corresponding to the front end of the screw rod.

Preferably, the width of the sliding groove is larger than the outer diameter of the ring body.

Compared with the prior art, the invention has the beneficial effects that:

1. the driving motor drives the sliding block to drive the blockage removing roller to move through the screw rod, and the blockage removing roller rolls in the moving process due to the meshing matching relationship of the gear and the rack, so that the ejector pins eject and remove ore particles blocked in sieve holes in the sieve screen. The blockage cleaning work of the screen is independent of the screening work, so that the opening rate of the screen is not reduced in the high-efficiency blockage cleaning process.

2. The chute is sealed by the sealing part, and the lock catch parts on the ring bodies on the two sides of the blocking cleaning roller can simultaneously open the sealing part in the advancing direction of the blocking cleaning roller from the middle part and timely close the sealing part at the rear part, so that the shaft body can smoothly advance in the chute, the chute is always in a closed state, and the ore particles in the screen box are prevented from leaking from the chute to the outside.

Drawings

FIG. 1 is a schematic side view of the present invention;

FIG. 2 is a schematic front view of the cleaning roller according to the present invention;

FIG. 3 is a schematic side view of the cleaning roller according to the present invention;

FIG. 4 is an enlarged view of the structure of FIG. 2 at A according to the present invention;

FIG. 5 is an enlarged view of the structure of FIG. 3 at B according to the present invention;

FIG. 6 is an enlarged view of the structure of FIG. 3 at B according to the present invention;

FIG. 7 is an enlarged schematic cross-sectional view of the sealing portion of the present invention.

In the figure: 1-a sieve box; 11-a chute; 2-a vibration motor; 3-screening a screen; 4-driving the motor; 41-screw rod; 5-a slide block; 6-gear; 7-a rack; 8-clearing the blockage drum; 81-ejector pins; 82-shaft body; 821-ring body; 83-a locking part; 831-side plate; 832-wedge block; 84-slotted holes; 85-a spring; 9-sealing part; 91-sealing cloth; 92-upper seal; 93-lower seal.

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 invention provides a technical scheme, a blockage removing device for a screen of a mineral separation vibrating screen, which comprises a screen box 1, a vibrating motor 2 fixedly installed at the top of the screen box 1, a screen 3 fixedly installed on the inner wall of the screen box 1, a driving motor 4, a sliding block 5, a gear 6, a rack 7, a blockage removing roller 8 and a sealing part 9, wherein the driving motor 4 is fixedly installed on two side walls at the rear end of the screen box 1, and the power output end of the driving motor 4 is connected with a screw rod 41;

wherein, the slide block 5 is sheathed on the periphery of the screw rod 41 in a threaded manner;

the blockage removing device comprises a blockage removing roller 8, a screen cloth 3, a screen box 1, a spring 85, a sliding block 5 and a sliding block, wherein the blockage removing roller 8 is transversely arranged below the screen cloth 3, the circle centers of two end surfaces of the blockage removing roller 8 are respectively and fixedly connected with a shaft body 82, the two side walls of the screen box 1 are provided with sliding grooves 11 corresponding to the outer ends of the shaft bodies 82 respectively along the direction parallel to the plane of the screen cloth 3, the surface of the blockage removing roller 8 is uniformly provided with slotted holes 84, the slotted holes 84 are internally and slidably sleeved with ejector pins 81, a spring 85 is connected between the inner ends of the ejector pins 81 and the inner ends of the inner cavities of the slotted holes 84, and the outer ends of the shaft bodies 82 are respectively and rotatably connected with the inner side surfaces of the sliding blocks 5;

wherein, the gears 6 are respectively fixedly sleeved on the periphery of the shaft body 82 close to the outer end;

wherein, the inner side surface of the rack 7 is fixedly connected with the two side walls of the screen box 1 at the position below the chute 11, and the rack 7 is meshed and matched with the gear 6;

wherein, the top and bottom ends of the sealing part 9 are respectively fixedly connected to the top and bottom surfaces of the inner cavity of the sliding chute 11;

the periphery of the shaft body 82 is rotatably sleeved with a ring body 821 corresponding to the inner cavity of the chute 11, the front end and the rear end of the ring body 821 are respectively and fixedly connected with a locking part 83 used for opening and closing the sealing part 9 from the middle position, the horizontal distance between the slotted holes 84 is equal to the distance between the transverse sieve holes on the sieve net 3, and the arc length between the adjacent annular slotted holes 84 of the blockage removing roller 8 is equal to the clear distance between the longitudinal sieve holes on the sieve net 3.

In conclusion, when the screening box is used, the vibrating motor 2 enables the screening box 1 to screen ores through the screen 3; the driving motor 4 drives the sliding block 5 to move through the screw rod 41; the slider 5 passes through the cylinder 82. The blockage removing roller 8 is driven to move below the screen 3 along the direction parallel to the screen 3; due to the meshing matching relationship of the gear 6 and the rack 7, the blockage removing roller 8 can rotate in the moving process, so that the blockage removing roller 8 rolls along the lower surface of the screen 3; when the shaft body 82 moves under the driving action of the sliding block 5, the locking part 83 on the ring body 821 can open the sealing part 9 in the advancing direction of the blocking cleaning roller 8 from the middle part and close the sealing part 9 at the rear part in time, so that the chute 11 is always in a closed state, and the ore particles in the screen box are prevented from leaking to the outside through the chute 11; when the ejector pins 81 correspond to the sieve holes, the ejector pins 81 are ejected into the sieve holes by the rebound force provided by the springs 85, so that the ore particles blocked in the sieve holes are ejected out, and the process of clearing the sieve is completed.

In this embodiment, the sealing portion 9 includes two sealing cloths 91, an upper sealing strip 92 and a lower sealing strip 93, the sealing cloths 91 are respectively and fixedly connected to the top surface and the bottom surface of the inner cavity of the chute 11, the upper surface of the upper sealing strip 92 is fixedly connected to the bottom end surface of the sealing cloth 91 at the upper portion in the chute 11, the lower surface of the lower sealing strip 93 is fixedly connected to the top end surface of the sealing cloth 91 at the lower portion in the chute 11, and the top end of the lower sealing strip 93 is vertically clamped in a notch formed in the lower surface of the upper sealing strip 92 along the axial direction; when in use, the sealing part 9 is closed when the upper seal 92 is buckled with the lower seal 93, and the sealing part 9 is opened when the upper seal 92 is separated from the lower seal 93.

In this embodiment, the locking portion 83 includes a side plate 831 and a wedge 832, the central position of the inner side surface of the side plate 831 near one end of the ring 821 is respectively fixedly connected to the two side surfaces of the wedge 832, the top end and the bottom end of the inner wall of the side plate 831 far away from one end of the ring 821 are respectively provided with a flange, the side plate 831 is respectively located at two sides of the sealing portion 9, and the flanges on the inner wall of the side plate 831 are respectively in sliding contact with the upper surface of the upper seal 92 and the lower surface of the lower seal 93; when in use, the wedge 832 corresponding to the locking portion 83 in the advancing direction of the clear blocking roller 8 pushes the upper seal 92 and the lower seal 93 apart in the advancing direction of the clear blocking roller 8, so as to open the sealing portion 9, and the flange of the rear side plate 831 pushes the upper seal 92 and the lower seal 93 pushed open by the wedge 832 again to be locked, which can be referred to the operation principle of the zipper.

In this embodiment, the top end of the lower seal 93 is an arc convex surface, and the notch of the lower surface of the upper seal 92 is an arc concave surface.

In this embodiment, the arc surface in the notch of the lower surface of the upper seal 92 is a major arc, and the arc surface at the top end of the lower seal 93 is a major arc; so that the upper seal 92 and the lower seal 93 can be firmly buckled with each other in use.

In this embodiment, the outer side surface of the screen box 1 corresponding to the front end of the screw rod 41 is provided with an ear seat rotatably sleeved and matched with the front end of the screw rod 41; so that the screw 41 can be effectively supported in use.

In this embodiment, the width of runner 11 is greater than the outer diameter of ring 821.

The working principle is as follows: when in use, the vibrating motor 2 enables the sieve box 1 to sieve ores through the sieve net 3; the driving motor 4 drives the sliding block 5 to move through the screw rod 41; the slider 5 passes through the cylinder 82. The blockage removing roller 8 is driven to move below the screen 3 along the direction parallel to the screen 3; due to the meshing matching relationship of the gear 6 and the rack 7, the blockage removing roller 8 can rotate in the moving process, so that the blockage removing roller 8 rolls along the lower surface of the screen 3; when the shaft body 82 moves under the driving action of the slider 5, the wedge 832 corresponding to the locking part 83 in the advancing direction of the blockage cleaning roller 8 pushes and separates the upper seal 92 and the lower seal 93 in the advancing direction of the blockage cleaning roller 8, so that the opening of the sealing part 9 is realized, and the flange of the rear side plate 831 extrudes and buckles the upper seal 92 and the lower seal 93 which are pushed open by the wedge 832 again; thereby preventing ore particles in the screen box from leaking to the outside through the chute 11; when the ejector pins 81 correspond to the sieve holes, the ejector pins 81 are ejected into the sieve holes by the rebound force provided by the springs 85, so that the ore particles blocked in the sieve holes are ejected out, and the process of clearing the sieve is completed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a mineral separation shale shaker screen cloth is with clear stifled device, includes sieve case (1) and fixed mounting be in vibrating motor (2) at sieve case (1) top, fixed mounting has screen cloth (3) on the inner wall of sieve case (1), its characterized in that still includes:

a drive motor (4);

a slider (5);

a gear (6);

a rack (7);

a cleaning roller (8) and

the sealing part (9), the driving motor (4) is fixedly arranged on two side walls at the rear end of the screen box (1), and the power output end of the driving motor (4) is connected with a screw rod (41);

the sliding block (5) is sleeved on the periphery of the screw rod (41) in a threaded manner;

the blockage removing device comprises a blockage removing roller (8), a screen (3), a screen box (1), a spring (85), a sliding block (81), a sliding block (5), a sliding block (2), a sliding block (6), a sliding block and a sliding block, wherein the blockage removing roller (8) is transversely arranged below the screen (3), the circle centers of two end surfaces of the blockage removing roller (8) are fixedly connected with shaft bodies (82) respectively, the outer ends of the two end surfaces of the screen box (1) corresponding to the shaft bodies (82) are provided with sliding grooves (11) respectively along the direction parallel to the plane of the screen (3), the surface of the blockage removing roller (8) is uniformly provided with slotted holes (84), the slotted holes (84) are internally and slidably sleeved with the ejector pins (81), the spring (85) is connected between the inner ends of the ejector pins (81) and the inner ends of the inner cavities of the slotted holes (84), and the outer ends of the shaft bodies (82) are rotatably connected with the inner side surfaces of the sliding blocks (5) respectively;

the gears (6) are fixedly sleeved on the periphery of the shaft body (82) close to the outer end respectively;

the inner side surface of the rack (7) is fixedly connected to the positions, below the sliding groove (11), of the two side walls of the screen box (1), and the rack (7) is meshed and matched with the gear (6);

the top and bottom ends of the sealing part (9) are respectively and fixedly connected to the top and bottom surfaces of the inner cavity of the sliding chute (11);

the periphery of the shaft body (82) is rotatably sleeved with a ring body (821) at a position corresponding to the inner cavity of the sliding chute (11), the front end and the rear end of the ring body (821) are respectively and fixedly connected with a locking part (83) used for opening and closing the sealing part (9) from the middle position, the horizontal distance between the slotted holes (84) is equal to the distance between transverse sieve holes on the sieve mesh (3), and the arc length between the adjacent slotted holes (84) located in the circumferential direction of the blockage removing roller (8) is equal to the clear distance between the longitudinal sieve holes on the sieve mesh (3).

2. The mineral processing vibrating screen mesh clearing device according to claim 1, wherein the sealing portion (9) comprises:

a sealing cloth (91);

an upper seal (92) and

the number of the sealing cloth (91) is two, and the sealing cloth (91) is fixedly connected to the top surface and the bottom surface of the inner cavity of the sliding chute (11) respectively;

wherein, the upper surface of the upper seal (92) is fixedly connected to the bottom end surface of the seal cloth (91) at the inner upper part of the chute (11);

the lower surface of the lower seal (93) is fixedly connected to the top end surface of the seal cloth (91) at the inner lower part of the chute (11);

the top end of the lower seal (93) is clamped in a notch formed in the lower surface of the upper seal (92) along the axial direction in the vertical direction.

3. The cleaning device for the screen of the mineral processing vibrating screen according to claim 2, wherein the locking part (83) comprises:

a side plate (831) and

voussoir (832), curb plate (831) are close to medial surface central point of ring body (821) one end respectively with the both sides face fixed connection of voussoir (832), curb plate (831) keep away from in the inner wall top and the bottom of ring body (821) one end are provided with the flange respectively, curb plate (831) are located respectively the both sides of sealing portion (9), flange on curb plate (831) inner wall respectively with the upper surface of last strip of paper used for sealing (92) with the lower surface sliding contact of lower strip of paper used for sealing (93).

4. The cleaning device for the screen of the mineral processing vibrating screen according to claim 3, characterized in that: the top end of the lower seal (93) is an arc convex surface, and the notch of the lower surface of the upper seal (92) is an arc concave surface.

5. The cleaning device for the screen of the mineral processing vibrating screen according to claim 4, characterized in that: the cambered surface in the notch of the lower surface of the upper seal (92) is a major arc, and the cambered surface at the top end of the lower seal (93) is a major arc.

6. The cleaning device for the screen of the mineral processing vibrating screen according to claim 1, characterized in that: the outer side surface of the screen box (1) corresponds to the front end of the screw rod (41) and is provided with an ear seat which is rotationally sleeved and matched with the front end of the screw rod (41).

7. The cleaning device for the screen of the mineral processing vibrating screen according to claim 5, characterized in that: the width of the sliding groove (11) is larger than the outer diameter of the ring body (821).

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