CN210701173U

CN210701173U - High-efficient grader that breaks up

Info

Publication number: CN210701173U
Application number: CN201921633657.6U
Authority: CN
Inventors: 张建华; 胡春才
Original assignee: Tianjin Jinshenghua Cement Co Ltd
Current assignee: Tianjin Jinshenghua Cement Co Ltd
Priority date: 2019-09-28
Filing date: 2019-09-28
Publication date: 2020-06-09
Anticipated expiration: 2029-09-28

Abstract

The utility model discloses a grader is broken up to high efficiency belongs to material screening equipment technical field, its technical scheme main points are including the organism, be equipped with outer barrel on the organism, outer barrel bottom intercommunication has the thin powder pipe, be equipped with interior barrel in the outer barrel, interior barrel bottom intercommunication has the thick powder pipe, be equipped with cylindric screening net on the inner wall of interior barrel, leave material flow distance between the inner wall of screening net and interior barrel, the top of screening net and the inner wall fixed connection of interior barrel, be equipped with the bottom plate between the bottom of screening net and the interior barrel, set up the intercommunication mouth with outer barrel intercommunication on the outer wall of interior barrel, the inside of screening net is equipped with the guide device, reach the effect that reduces from the coarse powder mouth discharge farine.

Description

High-efficient grader that breaks up

Technical Field

The utility model relates to a material screening equipment field, in particular to grader is broken up to high efficiency.

Background

In the existing cement industry, a rolling combined grinding system is mainly adopted in the grinding design of cement raw materials and clinker. However, the long-term use of the roller press causes the abrasion of the roller surface, and the inherent defect of the leakage of the material at the edge of the grinding roller of the roller press and the insufficiently extruded large-particle material generated by the start and stop of the roller press can adversely affect the next stage grinding process. Therefore, in cement processing, it is often necessary to scatter and classify the rolled raw material using a scatter classifier.

The existing Chinese patent with the reference publication number of CN103272676A discloses a scattering classifier, which comprises a base, wherein an outer cylinder body is arranged on the base, a scattering part is arranged at the top of the outer cylinder body, and the scattering part is connected with a motor. A grading part is arranged below the scattering part. The inside central point of outer barrel puts and is provided with wear-resisting wind wheel, and the below of wear-resisting wind wheel is provided with interior barrel, leaves the distance between interior barrel and the outer barrel. The bottom of the inner cylinder body is provided with a coarse powder port, and the bottom of the outer cylinder body is provided with a fine powder port. The materials are broken up by the breaking-up part and enter the grading part, and when passing through the grading area, qualified fine powder in the materials is blown down between the inner cylinder and the outer cylinder under the combined action of gravity and wind power and is collected through a fine powder port to form a finished product. The coarse powder falls into the inner cylinder under the action of gravity and comes out from the coarse powder outlet.

However, when the scattering classifier is used for sieving materials, fine powder can easily enter the inner cylinder along with coarse powder and is discharged through the coarse powder outlet, and the sieving effect of the fine powder is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a grader is broken up to high efficiency, reaches the effect that reduces from the coarse powder mouth discharge farine to the not enough of prior art existence.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a grader is broken up to high efficiency, which comprises a bod, be equipped with outer barrel on the organism, outer barrel bottom intercommunication has the fine powder pipe, be equipped with interior barrel in the outer barrel, interior barrel bottom intercommunication has thick powder pipe, be equipped with cylindric screening net on the inner wall of interior barrel, leave the material flow distance between the inner wall of screening net and interior barrel, the top of screening net and the inner wall fixed connection of interior barrel, be equipped with the bottom plate between the bottom of screening net and the interior barrel, set up the intercommunication mouth with outer barrel intercommunication on the outer wall of interior barrel, the inside of screening net is equipped with the guide device.

By adopting the technical scheme, after the material enters the inner cylinder body, the material guide device guides the material, so that the material entering the inner cylinder body is fully contacted with the sieving net, the fine powder entering the inner cylinder body can enter the material flowing distance through the sieving net and then enters the outer cylinder body through the communicating port, and the fine powder in the outer cylinder body are discharged through the fine powder pipe. And the coarse powder is discharged through the coarse powder pipe of the inner cylinder body. The screening net carries out secondary screening to the material that enters into interior barrel, makes the farine pass through screening net and intercommunication mouth and get into outer barrel to reduce the farine from middlings pipe discharge, improve the screening effect of farine, and then improve the screening effect of organism, improve work efficiency.

The utility model discloses further set up to, the stock guide includes stock guide and drive stock guide pivoted driving piece, and the driving piece is connected with the stock guide, leaves the distance between the edge of stock guide and the screening net.

Through adopting above-mentioned technical scheme, driving piece drive stock guide rotates, then arrives the material on the stock guide and is thrown to the edge of stock guide by the stock guide under the rotation of stock guide, makes material and screening net striking, further breaks up the material, then the material slides downwards along the screening net again, makes material and screening net fully contact, further improves the screening effect of farine.

The utility model is further arranged in that the material guide plate is a circular plate-shaped structure with a middle bulge.

Through adopting above-mentioned technical scheme, the stock guide is middle protruding form, and the back on the stock guide is reachd to the stock guide, can follow the stock guide and slide around to the stock guide, in the material lapse, driving piece drive stock guide rotates, and at this moment, the material on the stock guide receives horizontally centrifugal force and vertical gravity to further break up the separation with the material, thereby make the farine change and get into outer barrel through the screening net.

This practicality further sets up to, the driving piece is driving motor, and driving motor is connected with the bracing piece, bracing piece and screening net fixed connection.

Through adopting above-mentioned technical scheme, driving motor passes through bracing piece and screening net fixed connection, increases driving motor's connection stability. The driving motor has higher rotation stability, improves the stability of the guide plate during rotation, enables the stress condition of each part of materials to be basically stable, has good separation effect, and improves the screening effect on fine powder.

This practicality further sets up as, enclose on the outer peripheral face of screening net and be equipped with the strengthening rib.

Through adopting above-mentioned technical scheme, the strengthening rib can reduce the condition that the screening net broke under the impact of material, can improve the screening effect of farine, improves the life of screening net simultaneously.

This practicality further sets up to, intercommunication mouth fixedly connected with communicating pipe, the bottom downwarping of communicating pipe to communicate with outer barrel.

By adopting the technical scheme, the communicating pipe is communicated with the communicating port and is bent downwards, so that when fine powder of the inner cylinder body enters the outer cylinder body through the screening net and the communicating pipe, the situation that fine powder in the outer cylinder body enters the inner cylinder body from the communicating port can be effectively reduced, the screening effect of the fine powder is further improved, and the screening efficiency is improved.

This practicality further sets up to, the intercommunication has the aspiration channel on the lateral wall of coarse powder pipe, is provided with the filter screen between aspiration channel and the coarse powder pipe, and the one end that coarse powder pipe was kept away from to the aspiration channel is connected with the suction fan, the air outlet and the fine powder pipe intercommunication of suction fan.

By adopting the technical scheme, the suction fan further screens the fine powder entering the coarse powder pipe through the suction pipe, the fine powder is sucked into the fine powder pipe after passing through the filter screen and is discharged together with the fine powder in the outer cylinder through the fine powder pipe, the situation that the fine powder is discharged from the coarse powder pipe is further reduced, and the fine powder screening effect is improved.

The utility model further sets up to, the top fixedly connected with screen cloth of interior barrel, one side and the outer barrel inner wall fixed connection of barrel in the screen cloth was kept away from.

By adopting the technical scheme, when the materials are classified, the qualified fine powder in the materials is blown down to the outer cylinder body by the wind wheel under the combined action of gravity and wind power, and at the moment, the coarse powder is possibly blown into the outer cylinder body. The screen is arranged between the top end of the inner cylinder and the outer cylinder, and coarse powder can be prevented from entering the outer cylinder by the screen, so that the qualification rate of fine powder in the outer cylinder is improved.

To sum up, the utility model discloses following beneficial effect has:

1. the screening net further screens the materials entering the inner cylinder body, so that fine powder enters the outer cylinder body through the screening net and the communication port, the screening effect of the fine powder is improved, meanwhile, the material guide device guides the materials, the materials can be in full contact with the screening net, and the screening efficiency of the materials is further improved;

2. the communicating pipe enables the fine powder in the inner cylinder body to enter the outer cylinder body through the screening net and the communicating pipe, and meanwhile, the situation that the fine powder in the outer cylinder body enters the inner cylinder body from the communicating port can be effectively reduced, the screening effect of the fine powder is further improved, and the screening efficiency is improved;

3. the screen reduces the situation that coarse powder enters the outer cylinder body, and improves the qualification rate of fine powder in the outer cylinder body.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a partial structural cross-sectional view for clarity of the floor, communication ports and material flow distance;

fig. 4 is an exploded schematic view aimed at showing the material guiding device;

fig. 5 is a sectional view aimed at showing a positional relationship of the material guide device and the classifying screen;

fig. 6 is an exploded schematic view intended to show a filter screen.

Reference numerals: 1. a body; 11. an outer cylinder; 111. a fine powder tube; 12. an inner cylinder; 121. a coarse powder pipe; 122. a communication port; 123. a communicating pipe; 124. screening a screen; 13. breaking up the motor; 14. a main shaft; 141. a breaking-up tray; 142. a wind wheel; 15. a reaction plate; 2. screening the net; 21. the material flow distance; 22. a base plate; 23. reinforcing ribs; 3. a material guiding device; 31. a material guide plate; 32. a drive motor; 321. a support bar; 4. an air suction pipe; 41. a filter screen; 42. a suction fan.

Detailed Description

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

A high-efficiency scattering classifier is combined with a graph 1 and a graph 2 and comprises a machine body 1, wherein a scattering motor 13 is arranged on the machine body 1, the scattering motor 13 is connected with a main shaft 14 to drive the main shaft 14 to rotate, a scattering disk 141 and a wind wheel 142 are fixedly connected to the main shaft 14, and the wind wheel 142 is located below the scattering disk 141. The outer periphery of the beater disc 141 is provided with a reaction plate 15. An inverted cone-shaped outer cylinder 11 is arranged below the wind wheel 142, an inverted cone-shaped inner cylinder 12 is arranged in the outer cylinder 11, the bottom end of the inner cylinder 12 is communicated with a coarse powder pipe 121, and the bottom end of the outer cylinder 11 is communicated with a fine powder pipe 111. The above adopts the prior art with publication number CN105728141A, and the description of this embodiment is not repeated.

As shown in fig. 2, the screen 124 is connected to the top surface of the inner cylinder 12, the screen 124 is in an inverted cone-shaped cylindrical structure, and the bottom end of the screen 124 is fixedly connected to the top end of the inner cylinder 12. The top end of the screen 124 expands outwards and is fixedly connected with the inner wall of the outer cylinder 11, so that the situation that coarse powder enters the outer cylinder 11 is reduced.

With reference to fig. 2 and 3, a screening net 2 is arranged in the inner cylinder 12, the screening net 2 is in an inverted cone-shaped cylindrical structure, and the axis of the screening net 2 coincides with the axis of the inner cylinder 12. A material flow distance 21 is reserved between the screening net 2 and the inner wall of the inner cylinder body 12. The top end of the screening net 2 is bent outwards and is fixedly connected with the inner wall of the inner cylinder 12.

With reference to fig. 3 and 4, the bottom end of the sieving net 2 is provided with a bottom plate 22. The bottom plate 22 is circular-arc, and the diameter between the inner wall of bottom plate 22 and screening net 2 bottom is the same, and the inner wall of bottom plate 22 and screening net 2 bottom fixed connection. The outer peripheral surface of the bottom plate 22 is in contact with and fixedly connected to the inner wall of the inner cylinder 12. The peripheral surface of the screening net 2 is provided with a reinforcing rib 23, the reinforcing rib 23 is in a ring shape and is arranged around the peripheral surface of the screening net 2 to be fixedly connected with the screening net 2.

Referring to fig. 2 and 3, a communication port 122 communicating with the outer cylinder 11 is formed in the outer wall of the inner cylinder 12, and the communication port 122 is located at a position close to the bottom end of the inner cylinder 12 and above the bottom plate 22. The communication pipe 123 is communicated with the communication port 122, and one end of the communication pipe 123 far away from the communication port 122 is communicated with the outer cylinder 11 and is bent downwards.

After the material is screened by the wind wheel 142, fine powder enters the outer cylinder body 11 through the screen 124, and coarse powder enters the inner cylinder body 12 under the action of gravity. The coarse powder entering the inner cylinder 12 is mixed with part of fine powder, then the coarse powder of the inner cylinder 12 is contacted with the sieving net 2, the fine powder enters the material flowing distance 21 through the sieving net 2, and the coarse powder of the inner cylinder 12 is further sieved. The fine powder entering the material flowing distance 21 enters the outer cylinder 11 through the communicating opening 122 and the communicating pipe 123, and is discharged through the fine powder pipe 111 together with the fine powder in the outer cylinder 11, and the coarse powder in the inner cylinder 12 is discharged through the coarse powder pipe 121.

Referring to fig. 4 and 5, a material guide device 3 is disposed in the sieving screen 2, the material guide device 3 includes a material guide plate 31 and a driving member, the material guide plate 31 is a circular plate-shaped structure with a convex middle, and a distance is left between the circumferential surface of the material guide plate 31 and the inner wall of the sieving screen 2. The driving member is a driving motor 32, and the driving motor 32 is located below the material guide plate 31 and is fixedly connected with the material guide plate 31. The driving motor 32 is connected with a supporting rod 321 for fixing the driving motor 32, the supporting rod 321 is horizontally arranged, two ends of the supporting rod 321 are fixedly connected with the reinforcing ribs 23 on the screening net 2, and the driving motor 32 is fixedly connected with the supporting rod 321.

With reference to fig. 1 and 6, the coarse powder pipe 121 is connected to an air suction pipe 4, and a filter screen 41 for filtering coarse powder is disposed between the air suction pipe 4 and the coarse powder pipe 121. The end of the suction pipe 4 far away from the fine powder pipe 111 is communicated with a suction fan 42, and the air outlet end of the suction fan 42 is communicated with the fine powder pipe 111.

The driving motor 32 drives the material guide plate 31 to rotate, the material arriving on the material guide plate 31 is thrown to the edge of the material guide plate 31 by the material guide plate 31 under the rotation of the material guide plate 31, so that the material is impacted with the sieving net 2, the material is further scattered, then the material slides downwards along the sieving net 2, the material is fully contacted with the sieving net 2, and the screening effect of fine powder is further improved. The suction fan 42 further screens the fine powder entering the coarse powder pipe 121 through the suction pipe 4, and sucks the fine powder into the fine powder pipe 111 after passing through the filter screen 41, so that the situation of discharging the fine powder from the coarse powder pipe 121 is further reduced, and the fine powder screening effect is improved.

The utility model discloses a use as follows:

when the materials are screened, the breaking motor 13 drives the main shaft 14 to rotate, the main shaft 14 drives the breaking disc 141 to rotate, and the materials are continuously broken through the breaking disc 141. The scattered materials enter the periphery of the wind wheel 142 and pass through the wind power separation area, and under the action of wind power, the coarse powder is slightly changed in motion state and falls into the inner cylinder 12 in the sedimentation process of passing through the wind power separation area due to the fact that the coarse powder is heavier. While the fine powder is blown to the outer cylinder 11 because it is light, and the fine powder entering the outer cylinder 11 is discharged through the fine powder pipe 111.

The coarse powder entering the inner cylinder 12 reaches the material guide plate 31, the driving motor 32 drives the material guide plate 31 to rotate, the coarse powder is thrown onto the screening net 2, the coarse powder is scattered for the second time, fine powder doped in the coarse powder is fully contacted with the screening net 2, and therefore the fine powder enters the material flowing distance 21 through the screening net 2 and then enters the outer cylinder 11 through the communicating port 122 and the communicating pipe 123, and the screening efficiency of the fine powder is improved. The suction pipe 4 is used for further screening the fine powder in the coarse powder pipe 121 under the action of the suction fan 42, and the fine powder passes through the filter screen 41 and is sucked into the fine powder pipe 111, so that the situation of discharging the fine powder from the coarse powder pipe 121 is reduced, and the fine powder screening effect is further improved.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a grader is broken up to high efficiency, includes organism (1), is equipped with outer barrel (11) on organism (1), and outer barrel (11) bottom intercommunication has thin powder pipe (111), is equipped with interior barrel (12) in outer barrel (11), and interior barrel (12) bottom intercommunication has thick powder pipe (121), its characterized in that: be equipped with cylindric screening net (2) on the inner wall of interior barrel (12), leave material flow distance (21) between the inner wall of screening net (2) and interior barrel (12), the top of screening net (2) and the inner wall fixed connection of interior barrel (12), be equipped with bottom plate (22) between the bottom of screening net (2) and interior barrel (12), set up intercommunication mouth (122) with outer barrel (11) intercommunication on the outer wall of interior barrel (12), the inside of screening net (2) is equipped with guide device (3).

2. A high efficiency breakdown grader as in claim 1 wherein: the material guide device (3) comprises a material guide plate (31) and a driving piece for driving the material guide plate (31) to rotate, the driving piece is connected with the material guide plate (31), and a distance is reserved between the edge of the material guide plate (31) and the screening net (2).

3. A high efficiency breakdown grader as in claim 2 wherein: the material guide plate (31) is in a circular plate-shaped structure with a convex middle part.

4. A high efficiency breakdown grader as in claim 2 wherein: the driving piece is a driving motor (32), the driving motor (32) is connected with a supporting rod (321), and the supporting rod (321) is fixedly connected with the screening net (2).

5. A high efficiency breakdown grader as in claim 1 wherein: the periphery of the screening net (2) is surrounded with a reinforcing rib (23).

6. A high efficiency breakdown grader as in claim 1 wherein: the communication port (122) is fixedly connected with a communication pipe (123), and the bottom end of the communication pipe (123) bends downwards and is communicated with the outer cylinder body (11).

7. A high efficiency breakdown grader as in claim 1 wherein: the side wall of the coarse powder pipe (121) is communicated with an air suction pipe (4), a filter screen (41) is arranged between the air suction pipe (4) and the coarse powder pipe (121), one end, far away from the coarse powder pipe (121), of the air suction pipe (4) is connected with an air suction machine (42), and an air outlet of the air suction machine (42) is communicated with the fine powder pipe (111).

8. A high efficiency breakdown grader as in claim 1 wherein: the top end of the inner cylinder body (12) is fixedly connected with a screen (124), and one side, far away from the inner cylinder body (12), of the screen (124) is fixedly connected with the inner wall of the outer cylinder body (11).