CN210632430U

CN210632430U - Powder material screening plant

Info

Publication number: CN210632430U
Application number: CN201921105956.2U
Authority: CN
Inventors: 杜金喜; 杨力量; 李艳昌; 张建勋; 韦和峰; 梁家昌; 郭新义
Original assignee: Chengde Iron And Steel Engineering Technology Co ltd; HBIS Co Ltd Chengde Branch
Current assignee: Chengde Iron And Steel Engineering Technology Co ltd; HBIS Co Ltd Chengde Branch
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-05-29
Anticipated expiration: 2029-07-15

Abstract

The utility model provides a powder material screening plant, which belongs to the technical field of screening equipment and comprises a screening bin, an upper screen, a lower screen and a driving mechanism, wherein the upper end of the screening bin is provided with a charging hole, the lower end of the screening bin is provided with a discharging hole, and the upper screen is provided with a first mesh and is lapped on the inner wall of the screening bin; the lower layer screen is provided with a second mesh and is lapped on the inner wall of the screening bin, a gap is formed between the lower layer screen and the upper layer screen when the lower layer screen and the upper layer screen are static, the second mesh is aligned with the first mesh, a vertical blade for inserting the first mesh is arranged on the second mesh, the driving mechanism is used for driving the lower layer screen to do up-and-down reciprocating motion, and the upper layer screen does up-and-down reciprocating motion by means of pushing of the lower layer screen; the utility model provides a powder material screening plant can effectively sieve the material that has viscosity, prevents that screening in-process material from blockking up the mesh on the screen cloth.

Description

Powder material screening plant

Technical Field

The utility model belongs to the technical field of the screening equipment, more specifically say, relate to a powder material screening plant.

Background

In the production process of chemical powder materials, the powder materials calcined by the high-temperature converter have high temperature and certain viscosity, and are easy to block meshes of a screen when being screened by screening equipment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a powder material screening plant aims at solving the problem among the above-mentioned prior art, effectively sieves the powder material that the temperature is high, viscosity is big, prevents that the material from blockking up the mesh on the screen cloth.

In order to achieve the above object, the utility model adopts the following technical scheme: there is provided a powder material screening device comprising:

the upper end of the screening bin is provided with a feeding port, and the lower end of the screening bin is provided with a discharging port;

the upper-layer screen is provided with first meshes and is lapped on the inner wall of the screening bin, and the upper-layer screen can jump upwards;

the lower-layer screen is provided with a second mesh and is lapped on the inner wall of the screening bin, the lower-layer screen can jump upwards, a gap is reserved between the lower-layer screen and the upper-layer screen when the lower-layer screen and the upper-layer screen are lapped on the inner wall of the screening bin, the second mesh is aligned with the first mesh, and a vertical blade for inserting the first mesh is arranged on the second mesh;

and the driving mechanism is used for driving the lower-layer screen to vertically jump, and the upper-layer screen vertically jumps by means of the pushing of the lower-layer screen.

Furthermore, the upper-layer screen and the lower-layer screen are overlapped on the inner wall of the screening bin through a connecting mechanism.

Further, the connection mechanism includes:

the first fixing block is fixedly arranged on the inner wall of the screening bin and is provided with a first sliding chute and a first clamping groove;

the first movable block is fixedly arranged at the edge of the upper-layer screen and is provided with a first sliding block and a first clamping block, and the first fixed block and the first movable block are connected in a sliding mode through the first sliding chute and the first sliding block and are fixedly clamped and connected through the first clamping groove and the first clamping block;

the second fixed block is fixedly arranged on the inner wall of the screening bin and is positioned below the first fixed block, and a second sliding chute and a second clamping groove are formed in the second fixed block;

the second movable block sets firmly the border of lower floor's screen cloth just is equipped with second slider and second fixture block, second fixed block and second movable block with the help of second spout and second slider sliding connection and with the help of the fixed joint of second draw-in groove and second fixture block.

Furthermore, the first sliding groove and the second sliding groove are vertically aligned and communicated with each other, and the first sliding block upwards jumps by means of the pushing of the second sliding block.

Further, be equipped with on the first fixed block with the second draw-in groove is adjusted well and the groove of stepping down that communicates each other, the groove of stepping down is used for the second slider pushes away hold during the first slider the second fixture block.

Further, the drive mechanism includes:

the driving unit is fixedly arranged on the bin wall of the screening bin;

the transmission shaft penetrates through the screening bin and is positioned below the lower-layer screen, and the transmission shaft is connected with the power output end of the driving unit;

the cam plate is coaxially and fixedly arranged on the transmission shaft, and the outer edge of the cam plate is provided with a bulge along the circumferential direction, and the bulge is used for pushing the lower-layer screen.

Furthermore, the bulge is provided with a roller wheel which is used for being in rolling connection with the lower-layer screen.

Furthermore, the cross section of the vertical blade is cross-shaped, and the vertical blade is fixedly arranged on the inner wall of the second mesh.

Furthermore, a vibration motor is arranged on the wall of the screening bin.

Furthermore, an upper layer turning plate and a lower layer turning plate for controlling the feeding amount are arranged at the feeding port.

The utility model provides a powder material screening plant, beneficial effect lies in, when carrying out the material screening, actuating mechanism drive lower floor's screen cloth upward movement, locate in the second mesh hole department the vertical blade upwards insert in the first mesh; the lower layer screen mesh continues to move upwards and is abutted against the upper layer screen mesh, and the upper layer screen mesh is pushed upwards; after the lower layer screen mesh enters a downward movement stage, the upper layer screen mesh moves downward along with the lower layer screen mesh and is finally lapped on the inner wall of the screening bin; the material on the upper layer screen leaks from the first mesh under the inertia effect; after the upper-layer screen mesh is lapped and still, the lower-layer screen mesh is also lapped and still on the inner wall of the screening bin, and the material on the lower-layer screen mesh is leaked out of the second mesh under the action of inertia and reaches the discharge port, so that the upper-layer screen mesh and the lower-layer screen mesh complete a movement period of up-down jumping; the vertical blade is inserted into the first mesh from bottom to top, and can cut and crush the materials bonded into blocks, so that the materials can smoothly pass through the first mesh and the second mesh and leak to the discharge port, and the materials bonded into blocks are prevented from blocking the meshes on the screen.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a powder material screening device provided by an embodiment of the present invention;

fig. 2 is an exploded schematic view of an upper layer screen and a lower layer screen provided with a connecting mechanism according to an embodiment of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

fig. 4 is a schematic structural diagram of a first fixed block and a first movable block according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a second fixed block and a second movable block provided in the embodiment of the present invention;

fig. 6 is a schematic structural diagram of a part of components of a driving mechanism according to an embodiment of the present invention;

fig. 7 is a schematic cross-sectional view of a cam plate when the upper and lower screens are in a descending state according to an embodiment of the present invention;

fig. 8 is a schematic cross-sectional view of a cam plate when the upper screen and the lower screen are in a raised state according to an embodiment of the present invention.

In the figure: 1. screening the bin; 2. an upper screen; 3. a lower layer screen mesh; 31. erecting a blade; 4. a drive mechanism; 41. a drive shaft; 42. a cam plate; 43. a base plate; 44. a roller; 5. a connecting mechanism; 51. a first fixed block; 52. a first movable block; 53. a second fixed block; 54. a second movable block; 511. a first chute; 512. a first card slot; 513. a yielding groove; 521. a first slider; 522. a first clamping block; 531. a second chute; 532. a second card slot; 541. a second slider; 542. and a second clamping block.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to fig. 3, a powder material sieving device according to the present invention will now be described. The powder material screening device comprises a screening bin 1, an upper layer screen 2, a lower layer screen 3 and a driving mechanism 4; the upper end of the screening bin 1 is provided with a feeding port, and the lower end is provided with a discharging port; the upper-layer screen 2 is provided with first meshes and is lapped on the inner wall of the screening bin 1, and the upper-layer screen 2 can jump upwards; the lower layer screen 3 is provided with a second mesh and is lapped on the inner wall of the screening bin 1, the lower layer screen 3 can jump upwards, a gap is formed between the lower layer screen 3 and the upper layer screen 2 when the lower layer screen 3 and the upper layer screen are lapped on the inner wall of the screening bin 1, the second mesh is aligned with the first mesh, and the second mesh is provided with a vertical blade 31 for inserting the first mesh; the driving mechanism 4 is used for driving the lower-layer screen 3 to jump up and down, and the upper-layer screen 2 jumps up and down by means of the pushing of the lower-layer screen 3.

The powder material screening device provided by the utility model has the advantages that when the material screening is carried out, the driving mechanism 4 drives the lower layer screen 3 to move upwards, and the vertical blade 31 arranged at the second mesh hole is inserted upwards into the first mesh hole; the lower layer screen 3 continues to move upwards and is abutted against the upper layer screen 2, and the upper layer screen 2 is pushed upwards; after the lower layer screen 3 enters a downward movement stage, the upper layer screen 2 moves downward along with the lower layer screen and is finally lapped on the inner wall of the screening bin 1; the material on the upper layer screen 2 leaks from the first mesh under the inertia effect; after the upper-layer screen 2 is lapped and stands still, the lower-layer screen 3 is lapped and stands still on the inner wall of the screening bin 1, and materials on the lower-layer screen 3 leak out of the second mesh under the action of inertia and reach the discharge port, so that the upper-layer screen 2 and the lower-layer screen 3 complete a movement period of up-down jumping; the vertical blade 31 is inserted into the first mesh from bottom to top, and can cut and crush the materials bonded into blocks, so that the materials can smoothly pass through the first mesh and the second mesh and leak to the discharge port, and the materials bonded into blocks are prevented from blocking the meshes on the screen.

Specifically, first mesh equipartition is on upper screen 2, and second mesh and first mesh one-to-one and the aperture of second mesh internal contraction 0.1mm, the height of founding sword 31 0.5mm, thickness 0.2 mm.

As a specific embodiment of the powder material sieving device provided by the present invention, please refer to fig. 1, the upper screen 2 and the lower screen 3 are overlapped on the inner wall of the sieving bin 1 by means of the connecting mechanism 5.

The upper layer screen 2 and the lower layer screen 3 are in sliding connection with the inner wall of the screening bin 1 through a connecting mechanism 5 when jumping up and down; when upper screen 2 and lower floor's screen cloth 3 downstream, coupling mechanism 5 can carry out the joint to it, makes it become static by the motion to can make upper screen cloth 2 and lower floor's screen cloth 3 spill under the inertia.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3 to 5, the connecting mechanism includes a first fixed block 51, a first movable block 52, a second fixed block 53 and a second movable block 54; the first fixing block 51 is fixedly arranged on the inner wall of the screening bin 1 and is provided with a first sliding chute 511 and a first clamping groove 512; the first movable block 52 is fixedly arranged at the edge of the upper screen 2 and is provided with a first sliding block 521 and a first clamping block 522, and the first fixed block 51 and the first movable block 52 are connected in a sliding manner by virtue of the first sliding chute 511 and the first sliding block 521 and are fixedly clamped by virtue of the first clamping groove 512 and the first clamping block 522; the second fixing block 53 is fixedly arranged on the inner wall of the screening bin 1 and is positioned below the first fixing block 51, and a second sliding groove 531 and a second clamping groove 532 are arranged on the second fixing block 53; the second movable block 54 is fixedly arranged at the edge of the lower screen 3 and is provided with a second sliding block 541 and a second clamping block 542, and the second fixed block 53 and the second movable block 54 are slidably connected by the second sliding groove 531 and the second sliding block 541 and are fixedly clamped by the second clamping groove 532 and the second clamping block 542.

Specifically, the first sliding chute 511 and the first sliding block 521 are cylinders with the same diameter; the number of the first clamping blocks 522 is two, and the first clamping blocks are symmetrically arranged at the upper end of the first sliding block 521; the number and the positions of the first clamping grooves 512 correspond to those of the first clamping blocks 522, and the openings of the first clamping grooves 512 face upwards, so that the first clamping blocks 522 can be limited from top to bottom, and the movement state of the first clamping blocks 522 is changed into a static state; the lower end of the first fixture block 522 is provided with a downward bend for fixedly connecting with the upper-layer screen 2; a first yielding port through which the first fixed block 51 passes is arranged on the upper-layer screen 2; the first fixed block 51 and the first movable block 52 realize the function of fixed clamping while the upper layer screen 2 is connected with the inner wall of the screening bin 1 in a sliding way through a simple structure.

Specifically, the second sliding groove 531 and the second sliding block 541 are cylinders with the same diameter; the second clamping groove 532 corresponds to the second clamping block 542 in position, the opening of the second clamping groove 532 faces upwards, and the second clamping block 542 can be limited from top to bottom so as to be changed from a moving state to a static state; the extending end of the second fixture block 542 is fixedly connected with the lower-layer screen mesh 3, and the second fixture block 542 has a clamping function and also plays a role in fixedly connecting with the lower-layer screen mesh 3; a second yielding port through which the second fixed block 53 passes is formed in the lower-layer screen 3; the second fixed block 53 and the second movable block 54 realize the function of fixed clamping while the lower layer screen 3 is slidably connected with the inner wall of the screening bin 1 through a simple structure.

As a specific implementation manner of the embodiment of the present invention, the first sliding groove 511 and the second sliding groove 531 are aligned vertically and communicated with each other, and the first slider 521 is moved upward by the pushing of the second slider 541. The second sliding block 541 located in the second sliding groove 531 of the lower layer can slide into the first sliding groove 511 to push the first sliding block 521, so that the upper layer screen 2 can be stably and reliably pushed by the lower layer screen 3. In other embodiments, the upper screen 2 may be pushed by pushing against the mesh surface thereof, but the mesh surface of the upper screen 2 is easily damaged.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 4, the first fixing block 51 is provided with a yielding groove 513 aligned with the second engaging groove 532 and communicated with each other, the yielding groove 513 is used for accommodating the second engaging block 542 when the second sliding block 541 pushes the first sliding block 521. The function of the receding groove 513 is to reduce the minimum gap between the upper screen 2 and the lower screen 3, so that the second fixture block 542 does not interfere with the first fixing block 51 when the second slider 541 pushes the first slider 521. When the clearance is less, the height of the vertical blade 31 can be very small, so that the cost can be saved, the manufacturing difficulty can be reduced, the vertical blade 31 is more stable, and the vertical blade 31 can be smoothly inserted into the upper-layer screen mesh 2 from bottom to top when the lower-layer screen mesh 3 jumps upwards.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 6, the driving mechanism 4 includes a driving unit, a transmission shaft 41 and a cam plate 42; the driving unit is fixedly arranged on the wall of the screening bin 1; the transmission shaft 41 penetrates through the screening bin 1 and is positioned below the lower-layer screen 3, and the transmission shaft 41 is connected with the power output end of the driving unit; the cam plate 42 is coaxially and fixedly arranged on the transmission shaft 41, and the outer edge of the cam plate 42 is provided with a bulge along the circumferential direction, and the bulge is used for pushing the lower-layer screen mesh 3. In particular, the drive unit may be an electric motor; both ends of the transmission shaft 41 can be provided with the drive units simultaneously, one working and the other as a spare. Specifically, the cam plates 42 are arranged along the length direction of the transmission shaft 41, and the number of the cam plates is three, wherein two of the cam plates are close to the bin wall of the screening bin 1, and the other cam plate is located in the middle; the number of the protrusions is three and is uniformly distributed on the outer edge of the cam plate 42.

Specifically, as shown in fig. 7 and 8, a bottom plate 43 for bearing the pushing force of the protrusion is fixedly arranged at the lower end of the second slider 541; as shown in fig. 7, when the protrusion does not contact the bottom plate 43, the upper screen 2 and the lower screen 3 are in lap joint with the inner wall of the screening bin 1 and are in a static state, at this time, the first fixture block 522 contacts with the bottom of the first clamping groove 512, and the second fixture block 542 contacts with the bottom of the second clamping groove 532; as shown in fig. 8, when the upper screen 2 and the lower screen 3 rise to the highest point under the action of the protruding pushing force, at this time, the first fixture block 522 leaves the bottom of the first slot 512 and is still clamped in the first slot 512, the second fixture block 542 leaves the bottom of the second slot 532 and is still clamped in the second slot 532, the second slider 541 is inserted into the first slot 511 to push the first slider 521, and the vertical blade 31 is inserted into the first mesh.

In this embodiment, the movement process of the up-and-down jumping of the upper layer screen 2 and the lower layer screen 3 is as follows: the driving unit drives the transmission shaft 41 to rotate, the cam plate 42 rotates along with the transmission shaft 41 and drives the protrusions to rotate; when the bulge rotates to the bottom plate 43, an upward pushing force is generated on the bottom plate 43, the bottom plate 43 moves upwards together with the second sliding block 541 and the lower-layer screen 3, and the vertical blade 31 is gradually inserted into the first mesh; when the upper surface of the lower screen 3 is in contact with the lower surface of the upper screen 2, the upper end of the second slide block 541 is in contact with the lower end of the first slide block 521, so that an upward ejection force is generated on the first slide block 521; the first slide block 521 drives the upper-layer screen 2 to move upwards for a certain distance; after the highest point is reached, the bulge does not push and support the bottom plate 43 any more along with the rotation of the bulge, and the upper-layer screen 2 and the lower-layer screen 3 begin to fall under the action of self weight; the first clamping block 522 on the upper-layer screen 2 firstly contacts the bottom of the first clamping groove 512, and the upper-layer screen 2 is suddenly changed from a moving state to a static state; the first sliding block 521 is separated from the second sliding block 541, the lower-layer screen mesh 3 continuously falls under the action of self weight, finally the second clamping block 542 contacts the bottom of the second clamping groove 532, the lower-layer screen mesh 3 is suddenly changed from a motion state to a static state, and a motion cycle of up-and-down jumping is completed.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 6 to 8, the protrusion is provided with a roller 44 for rolling connection with the lower screen 3. Specifically, the roller 44 is connected to the bottom plate 43 in a rolling manner. The rolling connection is more stable than the sliding connection and can prevent the protrusion and the bottom plate 43 from being damaged due to sliding friction.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3, a cross section of the vertical blade 31 is cross-shaped, and the vertical blade 31 is fixedly disposed on an inner wall of the second mesh. The cross-shaped cross section can fully cut the bonded materials, so that the bonded materials can be crushed into particles which can smoothly pass through the first mesh and the second mesh.

As a specific implementation manner of the embodiment of the utility model, be equipped with vibrating motor on the bulkhead of screening storehouse 1, can prevent bulkhead sizing, make the material to discharge gate department removes. Specifically, the number of the vibration motors may be one or more.

As a specific implementation manner of the embodiment of the utility model, feed inlet department is equipped with the upper strata that is used for controlling the feeding volume and turns over the board and turn over the board with lower floor. The feeding device can put the material on the upper layer turning plate firstly, the lower layer turning plate is opened after the material quantity is detected to meet the requirement, the upper layer turning plate is also opened, and the material is put into the screening bin 1. Turn over the board and turn over the board with lower floor through the upper strata and add the material and can prevent that the material from adding excessively, surpass the screening ability of this device, cause the problem of unable smooth screening. Specifically, the discharge port is provided with a star-shaped discharger, and materials enter the next procedure by means of the star-shaped discharger.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Powder material screening plant, its characterized in that includes:

2. A powder material screening device as claimed in claim 1, wherein said upper and lower screens overlap the inner wall of said screening chamber by means of a connecting means.

3. The powder material screening device of claim 2, wherein the attachment mechanism comprises:

4. The powder material screening device of claim 3, wherein said first chute and said second chute are vertically aligned and in communication with each other, and said first slider is upwardly sprung by the urging of said second slider.

5. The powder material screening device as claimed in claim 4, wherein a yielding groove aligned with and communicated with the second clamping groove is formed in the first fixing block, and the yielding groove is used for accommodating the second clamping block when the second sliding block pushes against the first sliding block.

6. The powder material screening device of claim 1, wherein the drive mechanism comprises:

the driving unit is fixedly arranged on the bin wall of the screening bin;

7. A powder material screening device as claimed in claim 6, wherein the projections are provided with rollers for rolling engagement with the lower screen.

8. The powder material screening device as claimed in claim 1, wherein the vertical blade has a cross-shaped cross section and is fixedly disposed on the inner wall of the second mesh.

9. The powder material screening device of claim 1, wherein a vibration motor is provided on a wall of the screening chamber.

10. The powder material screening device of claim 1, wherein the feeding port is provided with an upper layer turning plate and a lower layer turning plate for controlling the feeding amount.