CN213825395U

CN213825395U - High-efficiency cyclone separator

Info

Publication number: CN213825395U
Application number: CN202022716762.5U
Authority: CN
Inventors: 刘守信; 轩红钟; 张宗见; 李志强; 蔡盛强; 王斌; 张提提; 宗青松; 周先进
Original assignee: Anhui Conch Construction Materials Design Institute Co Ltd
Current assignee: Anhui Conch Construction Materials Design Institute Co Ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-07-30
Anticipated expiration: 2030-11-19

Abstract

The utility model discloses a high-efficient cyclone, this high-efficient cyclone includes: the separator comprises a separator body, wherein a feed opening at the bottom of the separator body is fixedly connected with an outer barrel cone structure, the diameter of the outer barrel cone structure is gradually reduced from top to bottom, and a first dust exhaust opening is formed in the bottom end of the outer barrel cone structure; an inner cylinder cone structure is arranged in the outer cylinder cone structure, the side wall of the inner cylinder cone structure is parallel to the outer cylinder cone structure, the upper end of the inner cylinder cone structure extends upwards and is fixedly connected to the inner wall of the bottom feed opening, and a second dust exhaust opening which is flush with the first dust exhaust opening is arranged at the bottom end of the inner cylinder cone structure; the inner cylinder cone structure and the outer cylinder cone structure are coaxially arranged, and a plurality of grate seams are radially arranged on the side surface of the inner cylinder cone structure at equal intervals along the circumferential direction of the inner cylinder cone structure. The high-efficiency cyclone separator has high separation efficiency.

Description

High-efficiency cyclone separator

Technical Field

The utility model relates to a cyclone splitter in the cement industry environmental protection specifically, relates to a high-efficient cyclone.

Background

The cyclone separator is widely applied in the industrial fields of chemical industry, cement, environmental protection and the like, and is key equipment for realizing gas-solid separation. The conventional cyclone separator is simple in structure and comprises an inlet, a volute, an inner cylinder, a straight cylinder section, a feed opening and a cone structure, but the internal flow of the conventional cyclone separator is extremely complex and belongs to multiphase three-dimensional turbulent flow.

According to the research results at present, the internal flow field of the cyclone separator consists of a main vortex (quasi-forced vortex and quasi-free vortex) formed by tangential velocity and axial velocity, and a secondary vortex formed by axial velocity and radial velocity. The secondary vortex mainly exists near the inner cylinder, the cone and the dust exhaust port, and has great influence on the separation efficiency of the cyclone separator. Longitudinal circulation and eccentric circulation exist near the cone part and the dust exhaust port, secondary dust raising and back mixing phenomena occur, particles with small collected particles enter the upstream again and are exhausted through the inner cylinder, and then the separation efficiency is low.

Therefore, optimizing the cone design of the cyclone separator and controlling the secondary dust raising and back mixing are effective ways for improving the separation efficiency of the cyclone separator.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high-efficient cyclone, this high-efficient cyclone separation efficiency is high.

In order to achieve the above object, the utility model provides a high-efficient cyclone, this high-efficient cyclone includes: the separator comprises a separator body, wherein a feed opening at the bottom of the separator body is fixedly connected with an outer barrel cone structure, the diameter of the outer barrel cone structure is gradually reduced from top to bottom, and a first dust exhaust opening is formed in the bottom end of the outer barrel cone structure; an inner cylinder pyramid structure is arranged in the outer cylinder pyramid structure, the side wall of the inner cylinder pyramid structure is parallel to the outer cylinder pyramid structure, the upper end of the inner cylinder pyramid structure extends upwards and is fixedly connected to the inner wall of the bottom feed opening, and a second dust exhaust opening which is flush with the first dust exhaust opening is arranged at the bottom end of the inner cylinder pyramid structure; the inner cylinder cone structure and the outer cylinder cone structure are coaxially arranged, and a plurality of grate seams are radially arranged on the side surface of the inner cylinder cone structure at equal intervals along the circumferential direction of the inner cylinder cone structure.

Preferably, a baffle is arranged on one side of each grate seam along the airflow on the inner side wall of the inner cylinder conical part structure, and the baffle inclines towards the corresponding grate seam.

Preferably, the diameter of the first dust exhaust port is m, and the diameter of the second dust exhaust port is n, 1/3m < n <1/2 m.

Preferably, the length of the grate is h1, the wall length of the outer barrel cone structure is h, 1/2h < h1< h.

Preferably, the angle of inclination of the baffle is alpha, 0 DEG < alpha < 15 deg.

Preferably, the width of the grate seam is b, and b is more than or equal to 50 and less than or equal to 200 mm.

Preferably, the width of the baffle is a, 1/3b and a are 1/2 b.

Preferably, the diameter of the inner cylinder cone structure at the bottom end of the grating slots is d, the number of the grating slots is e, e < (pi x d)/b, and e is an integer.

Preferably, the number of the grate slits is 36-72.

According to the above technical scheme, the utility model discloses following beneficial effect has: through setting up urceolus pyramis structure and inner tube pyramis structure, set up the grate seam simultaneously in inner tube pyramis structure, the material after separating on the structure wall of inner tube pyramis flows out from the grate seam in advance and collects, reduces inner tube pyramis structure bottom exhaust material volume, and very big degree of reduction brings the air current granule volume because of "secondary raise dust" and "backmixing" phenomenon to reach the effect that improves cyclone's separation efficiency.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of a preferred embodiment of a high efficiency cyclone separator;

FIG. 2 is a schematic structural view of a preferred embodiment of an inner barrel taper configuration;

FIG. 3 is a schematic cross-sectional view taken at the location A-A in FIG. 1;

FIG. 4 is a schematic structural view of a preferred embodiment of the grate slots;

fig. 5 is a schematic cross-sectional view at the position B-B in fig. 4.

Description of the reference numerals

1 separator body 2 outer cylinder cone structure

3 inner barrel cone structure 4 grate seam

5 baffle plate

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the present invention, unless otherwise specified, the terms "upper, lower, top, bottom, far, near, side" and the like included in the terms "an orientation" merely represent an orientation of the terms in a conventional use state or a colloquial meaning understood by those skilled in the art, and should not be construed as limiting the terms.

Referring to fig. 1-5, a high efficiency cyclone separator includes: the separator comprises a separator body 1, wherein a feed opening at the bottom of the separator body 1 is fixedly connected with an outer cylinder cone structure 2, the diameter of the outer cylinder cone structure 2 is gradually reduced from top to bottom, and a first dust exhaust opening is formed in the bottom end of the outer cylinder cone structure 2; an inner cylinder pyramid structure 3 is arranged in the outer cylinder pyramid structure 2, the side wall of the inner cylinder pyramid structure is parallel to the outer cylinder pyramid structure 2, the upper end of the inner cylinder pyramid structure 3 extends upwards and is fixedly connected to the inner wall of the bottom feed opening, and a second dust exhaust opening which is flush with the first dust exhaust opening is arranged at the bottom end of the inner cylinder pyramid structure 3; the inner cylinder pyramid structure 3 and the outer cylinder pyramid structure 2 are coaxially arranged, and a plurality of grate seams 4 are radially arranged on the side surface of the inner cylinder pyramid structure 3 at equal intervals along the circumferential direction of the inner cylinder pyramid structure.

Through the implementation of above-mentioned technical scheme, through setting up urceolus pyramis structure 2 and inner tube pyramis structure 3, set up grate seam 4 on inner tube pyramis structure 3 simultaneously, the material after separating on the wall of inner tube pyramis structure 3 flows out from grate seam 4 in advance and collects, reduces inner tube pyramis structure 3 bottom exhaust material volume, and very big degree of reduction brings the air current granule volume because of "secondary raise dust" and "backmixing" phenomenon to reach the effect that improves cyclone's separation efficiency. For a conventional cyclone separator, particles enter the cyclone separator through an inlet along with airflow and are influenced by the wall surface of the cyclone separator to force the airflow to generate centrifugal rotation motion, and the particles in the dust-containing airflow are thrown to the wall surface under the action of centrifugal force and are conveyed downwards to a dust exhaust port along with the airflow close to the wall surface to be exhausted. And the airflow which is axially downward is converted into airflow which is axially upward through the conical part and is discharged through the inner cylinder. Compared with the conventional cyclone separator, the high-efficiency cyclone separator has the advantage that the separation efficiency is improved by 1.5-3.0%.

In this embodiment, preferably, a baffle 5 is disposed on each of the grates 4 on the inner side wall of the inner cylindrical conical structure 3, and the baffle 5 is inclined toward the corresponding grates 4. By arranging the baffle 5, the air flow can be prevented from directly entering the grate slits 4 when the material is low. As shown in fig. 5, the air flow direction is blown to the grate slits 4 from left to right, and the inclined baffle plates 5 are arranged, so that the effect of preventing the air flow from directly entering the grate slits 4 is achieved.

In this embodiment, in order to further increase the separation effect, it is preferable that the diameter of the first dust discharge port is m, and the diameter of the second dust discharge port is n, 1/3m < n <1/2 m.

In this embodiment, in order to further increase the separation effect, it is preferable that the length of the grating slit 4 is h1, and the wall length of the outer cylindrical cone structure 2 is h, 1/2h < h1< h.

In this embodiment, in order to further increase the separation effect, it is preferable that the baffle 5 is inclined at an angle α, 0 ° < α ≦ 15 °.

In this embodiment, in order to further increase the separation effect, it is preferred that the width of the grate slit 4 is b, 50. ltoreq. b.ltoreq.200 mm.

In this embodiment, in order to further increase the separation effect, it is preferable that the width of the baffle 5 is a, 1/3 b. ltoreq. a.ltoreq. 1/2 b.

In this embodiment, in order to further increase the separation effect, it is preferable that the diameter of the inner cylindrical cone structure 3 at the bottom end position of the grating slits 4 is d, the number of the grating slits 4 is e, e < pi × d/b, and e is an integer.

In this embodiment, in order to further increase the separation effect, it is preferable that the number of the grating slits 4 is 36 to 72.

The utility model discloses be applied to and handle the double-phase flow separation of gas-solid of high concentration, for example: the system is used for a raw material grinding system or a cement grinding system in the cement industry.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.

In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims

1. A high efficiency cyclone separator, the high efficiency cyclone separator comprising: the separator comprises a separator body (1), wherein a feed opening at the bottom of the separator body (1) is fixedly connected with an outer cylinder cone structure (2), the diameter of the outer cylinder cone structure (2) is gradually reduced from top to bottom, and a first dust exhaust opening is formed in the bottom end of the outer cylinder cone structure (2);

an inner cylinder pyramid structure (3) is arranged in the outer cylinder pyramid structure (2), the side wall of the inner cylinder pyramid structure (3) is parallel to the outer cylinder pyramid structure (2), the upper end of the inner cylinder pyramid structure (3) extends upwards and is fixedly connected to the inner wall of the bottom feed opening, and a second dust exhaust opening which is flush with the first dust exhaust opening is arranged at the bottom end of the inner cylinder pyramid structure (3);

the inner cylinder pyramid structure (3) and the outer cylinder pyramid structure (2) are coaxially arranged, and a plurality of grate seams (4) are radially arranged on the side surface of the inner cylinder pyramid structure (3) at equal intervals along the circumferential direction of the inner cylinder pyramid structure.

2. The high-efficiency cyclone separator as claimed in claim 1, wherein a baffle (5) is arranged on the inner side wall of the inner cylinder conical structure (3) on one side of each grate seam (4) along the airflow, and the baffle (5) inclines towards the corresponding grate seam (4).

3. The high efficiency cyclone separator of claim 1 or 2, wherein the diameter of the first dust discharge port is m, the diameter of the second dust discharge port is n, 1/3m < n <1/2 m.

4. A high efficiency cyclone separator as claimed in claim 3, characterized in that the length of the grating slots (4) is h1 and the wall length of the outer cylindrical cone structure (2) is h, 1/2h < h1< h.

5. The high efficiency cyclone separator according to claim 2, characterized in that the angle of inclination of the baffle (5) is α, 0 ° < α ≦ 15 °.

6. The high-efficiency cyclone separator as claimed in claim 5, wherein the width of the grating slits (4) is b, and b is 50-200 mm.

7. The high efficiency cyclone separator according to claim 6 wherein the width of the baffle (5) is a, 1/3b a 1/2 b.

8. The high efficiency cyclone separator according to claim 7, characterized in that the diameter of the inner cone structure (3) at the bottom end of the grating slots (4) is d, the number of grating slots (4) is e, e < (π x d)/b, and e is an integer.

9. The high efficiency cyclone separator according to claim 8, wherein the number of said grates (4) is 36-72.