CN110813515A

CN110813515A - High-efficiency swirler

Info

Publication number: CN110813515A
Application number: CN201911278268.0A
Authority: CN
Inventors: 李磊; 刘子龙; 解钊; 王鹤强; 王海青; 吴忠伟; 胡其旭; 李玉山
Original assignee: TIBET HUATAILONG MINING DEVELOPMENT Co Ltd
Current assignee: TIBET HUATAILONG MINING DEVELOPMENT Co Ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-02-21

Abstract

The invention discloses a high-efficiency cyclone, which comprises a cyclone body, wherein the side wall of the cyclone body is connected with a feeding pipe and a water inlet pipe, the feeding pipe is used for conveying slurry, the water inlet pipe is used for conveying high-pressure water, the water inlet pipe enables high-pressure water to flow in along the tangent plane of the inner surface of the cyclone body, the high-pressure water enters between the slurry and the inner surface of the cyclone body, and a water film is formed between the slurry and the cyclone body; the ground paste receives centrifugal force, and great granule is close to the internal surface of whirl body, extrudees the water film, makes the water film remove to the central line direction of whirl body, and water flows the in-process between the gap of great granule, takes the tiny particle impurity that is mingled with between the large granule to the center, further promotes the purity of large granule, promotes the classification efficiency of swirler.

Description

High-efficiency swirler

Technical Field

The invention relates to the technical field of material sorting, and further relates to a high-efficiency cyclone.

Background

The fluid cyclone is a common separation and classification device, and after two-phase mixed liquid to be separated enters the cyclone tangentially from the periphery of the cyclone at a certain pressure, strong three-dimensional elliptical strong-rotation shearing turbulent flow motion is generated; because the particle size difference exists between the coarse particles and the fine particles, the coarse particles and the fine particles are subjected to different sizes such as centrifugal force, centripetal buoyancy, fluid drag force and the like, large particle materials are close to the inner wall of the cyclone, and small particle materials are far away from the inner wall of the cyclone; under the action of centrifugal sedimentation, most of coarse particles are discharged through a sand settling nozzle at the bottom of the cyclone, and most of fine particles are discharged through an overflow pipe at the top, so that the separation and classification purposes are achieved.

After primary size mixing of the existing cyclone, the slurry is directly pressed into the cyclone through a slurry pump for classification, but when coarse particles approach the inner wall of the cyclone, part of fine particles are mixed, so that the classification efficiency cannot be further improved, and the classification mass efficiency of the mining cyclone is 50-65% more; meanwhile, coarse particles directly contact the inner wall of the cyclone, and the lining of the cyclone is quickly abraded.

For those skilled in the art, how to further improve the classification efficiency of the cyclone is a technical problem to be solved at present.

Disclosure of Invention

The invention provides a high-efficiency swirler, which utilizes a high-pressure water film to bring small particle impurities mixed among large particles to the center, and improves the classification efficiency of the swirler, and the specific scheme is as follows:

a high-efficiency swirler comprises a swirling flow body, wherein the side wall of the swirling flow body is connected with a feed pipe for conveying slurry and a water inlet pipe for conveying high-pressure water;

the water inlet pipe enables high-pressure water flow to flow in along the tangent plane of the inner surface of the rotational flow body, and the high-pressure water enters between slurry and the inner surface of the rotational flow body.

Optionally, the feeding pipe is arranged at the top of the side wall of the rotational flow body, and the height of the water inlet pipe is smaller than or equal to that of the feeding pipe.

Optionally, a connection point of the water inlet pipe and the cyclone body is located behind a connection point of the water inlet pipe and the cyclone body.

Optionally, the water inlet pipe is arranged on the outer side wall of the feeding pipe.

Optionally, the pipe heights of the water inlet pipe and the feed pipe are equal.

Optionally, the water inlet pipe is an arc-shaped elbow pipe.

The invention provides a high-efficiency cyclone, which comprises a cyclone body, wherein the side wall of the cyclone body is connected with a feeding pipe and a water inlet pipe, the feeding pipe is used for conveying slurry, the water inlet pipe is used for conveying high-pressure water, the water inlet pipe enables high-pressure water to flow in along the tangent plane of the inner surface of the cyclone body, the high-pressure water enters between the slurry and the inner surface of the cyclone body, and a water film is formed between the slurry and the cyclone body; the ground paste receives centrifugal force, and great granule is close to the internal surface of whirl body, extrudees the water film, makes the water film remove to the central line direction of whirl body, and water flows the in-process between the gap of great granule, takes the tiny particle impurity that is mingled with between the large granule to the center, further promotes the purity of large granule, promotes the classification efficiency of swirler.

Drawings

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

FIGS. 1A and 1B are front and top views, respectively, of a high efficiency cyclone provided by the present invention;

FIG. 2 is a partial cross-sectional structural view of the interior of the cyclone body;

FIG. 3A is a schematic view of the water inlet pipe and the material inlet pipe in a top view;

FIG. 3B is a cross-sectional view taken along the direction D-D in FIG. 3A.

The figure includes:

the cyclone body 1, pan feeding pipe 2, oral siphon 3.

Detailed Description

The core of the invention is to provide a high-efficiency swirler, which utilizes a high-pressure water film to bring small particle impurities mixed among large particles to the center, thereby improving the classification efficiency of the swirler.

In order to make the technical solution of the present invention better understood by those skilled in the art, the high efficiency cyclone of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1A and 1B, which are respectively a front view and a top view of a high efficiency cyclone provided by the present invention; the cyclone comprises a cyclone body 1, wherein the cyclone body 1 is hollow and has a conical cylindrical structure, slurry can spirally move in the cyclone body 1, large particles are discharged from a port A at the lower part, and small particles are discharged from a port B at the upper part; the side wall of the rotational flow body 1 is connected with a feed pipe 2 for conveying slurry and a water inlet pipe 3 for conveying high-pressure water; the ground paste flows into whirl body 1 along the tangent plane direction of 1 inner wall of whirl body, and the ground paste is helical motion, receives the effect of centrifugal force, and the large granule is closer to the inner wall surface of whirl body 1 for the tiny particle.

The water inlet pipe 3 enables high-pressure water flow to flow in along the tangent plane of the inner surface of the rotational flow body 1, the high-pressure water enters the space between the slurry and the inner surface of the rotational flow body 1 to generate a high-pressure water film, particles in the slurry are spaced from the inner wall surface of the rotational flow body 1, and the high-pressure water forms a buffer layer, so that the impact of the slurry particles on the inner wall surface of the rotational flow body 1 is reduced.

As shown in fig. 2, be the inside local structure chart of whirl body 1, C shows the high pressure water film in the drawing, the ground paste granule receives the centrifugal force to have the trend that moves to the right, the extrusion water film, because the density of water is less than the density of ground paste granule, water receives the extrusion and moves to the left, direction as shown by the arrow in fig. 2, water flows between the gap between the large granule, when the inboard velocity of flow of water is greater than the velocity of motion of smuggleing tiny particle to the outside secretly, it moves to the left to drive the tiny particle that is mingled with in the large granule, get into the region of tiny particle, thereby get rid of the tiny particle in the large granule, the separation degree promotes between large granule and the tiny particle, the purity that obtains is higher.

On the basis of the scheme, the feeding pipe 2 is arranged at the top of the side wall of the rotational flow body 1, the height of the water inlet pipe 3 is smaller than or equal to that of the feeding pipe 2, and high-pressure water sprayed from the water inlet pipe 3 can enter between slurry and the inner surface of the rotational flow body 1 from the beginning of entering the rotational flow body 1.

Furthermore, the connection point of the water inlet pipe 3 and the rotational flow body 1 is positioned behind the connection point of the water inlet pipe 2 and the rotational flow body 1, namely, slurry flowing out of the water inlet pipe 2 firstly enters the rotational flow body 1, and high-pressure water flowing out of the water inlet pipe 3 then enters the rotational flow body 1, so that the slurry can be separated by the high-pressure water.

As shown in fig. 3A, it is a schematic view of the top view of the water inlet pipe 3 and the material inlet pipe 2; FIG. 3B is a cross-sectional view taken along line D-D of FIG. 3A; preferably, the water inlet pipe 3 is arranged on the outer side wall of the material inlet pipe 2, the slurry and high-pressure water enter the rotational flow body 1 basically synchronously, the high-pressure water film is formed before the slurry contacts the inner wall of the rotational flow body 1, and isolation is realized at the initial stage of slurry entering.

The high-pressure water film and the slurry keep synchronous motion, the flowing speed of the high-pressure water film entering the rotational flow body 1 is larger than the flowing speed of the slurry entering the rotational flow body 1, and fine particles can be removed only when water flow has high enough speed, so that fine particles doped in large particles can be removed at a higher inflow speed in a larger range.

Preferably, the pipe heights of the water inlet pipe 3 and the water inlet pipe 2 are equal, and the width of the water flow when entering is equal to the width of the slurry when entering.

As shown in FIG. 3A, the water inlet pipe 3 of the present invention is an arc-shaped bent pipe, which enables the water flow to change direction smoothly, and facilitates the connection with water supply equipment.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The high-efficiency cyclone is characterized by comprising a cyclone body (1), wherein the side wall of the cyclone body (1) is connected with a feed pipe (2) for conveying slurry and a water inlet pipe (3) for conveying high-pressure water;

the water inlet pipe (3) enables high-pressure water flow to flow in along the section of the inner surface of the rotational flow body (1), and the high-pressure water enters between slurry and the inner surface of the rotational flow body (1).

2. The high-efficiency cyclone of claim 1, wherein the feeding pipe (2) is arranged at the top of the side wall of the cyclone body (1), and the height of the water inlet pipe (3) is less than or equal to the height of the feeding pipe (2).

3. The high-efficiency cyclone according to claim 2, characterized in that the connection point of the water inlet pipe (3) and the cyclone body (1) is located after the connection point of the feed pipe (2) and the cyclone body (1).

4. A high-efficiency cyclone according to claim 3, characterized in that the water inlet pipe (3) is arranged on the outer side wall of the feed pipe (2).

5. The high-efficiency cyclone according to claim 4, characterized in that the conduit height of the water inlet pipe (3) and the feed pipe (2) is equal.

6. The high efficiency cyclone according to claim 4 wherein the inlet pipe (3) is an arc bend.