CN217856742U

CN217856742U - Centrifugal separator of easy drainage

Info

Publication number: CN217856742U
Application number: CN202221261595.2U
Authority: CN
Inventors: 朱琳
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-11-22
Anticipated expiration: 2032-05-24

Abstract

The utility model belongs to the technical field of the centrifuge technique and specifically relates to a centrifuge of easy drainage, including rotator and frame, the rotator includes rotator body and apron, it has the overflow hole to open on the apron, rotator body below is equipped with the nozzle, the displacement in overflow hole is not less than the water injection volume of nozzle, be equipped with the baffle between rotator body outer wall and the frame, form and collect the chamber, it has the collection mouth with the outside intercommunication of frame to open on the collection chamber, still include annular breakwater and drain pipe, annular breakwater sets up and follows outside the apron, annular breakwater is stretched into to drain pipe one end, the other end extends the frame outside, collect the parting liquid through annular breakwater, then recycle stretches into the drain pipe of annular breakwater and directly discharges the parting liquid. This centrifugal separator is through the cooperation of annular breakwater and drain pipe, and direct discharge machine is external after concentrating the collection with the parting liquid, realizes from the low to eminence drainage and long distance drainage to effectively improve separation efficiency.

Description

Centrifugal separator of easy drainage

Technical Field

The utility model belongs to the technical field of the centrifuge technique and specifically relates to a centrifuge of easy drainage.

Background

The centrifugal separator is mainly used for separating solid particles from liquid in suspension; or separating two liquids with different densities and insoluble with each other in the emulsion (such as separating butter from milk); it can also be used to remove liquids from wet solids, such as by spin drying clothes in a washing machine; the special overspeed tubular separator can also separate gas mixtures with different densities, such as enriched and separated gaseous uranium hexafluoride; some settling centrifuges can also grade solid particles according to density or granularity by utilizing the characteristic that solid particles with different densities or granularities have different settling speeds in liquid. Centrifugal separators are used in a large number of sectors such as chemical, petroleum, food, pharmaceutical, mineral separation, coal, water treatment, ships and the like.

During the centrifugal separation, sludge is attached to the inner side wall of the rotating body of the centrifugal separator by centrifugal action and is accumulated in a pressing manner, and separated liquid is discharged from an overflow port on the cover plate above the rotating body, flows to the outside of the rotating body and is discharged from a collecting port between the outside of the rotating body and the frame for collection. However, the prior drainage has no pressure, and cannot realize the drainage from a low place to a high place and the long-distance drainage; and the separating medium flows to the collection mouth in-process from the overflow opening, can constantly strike the rotator outer wall, increases the rotation resistance of rotator, and the rotational speed of rotator also consequently descends gradually, leads to the motor to transship, and then has influenced separation efficiency.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the drainage did not have pressure in the past, can't realize the problem to the eminence drainage from the low, the utility model provides a centrifuge of easy drainage through set up the drain pipe in apron department, directly discharges the parting liquid to the frame outside, realizes from the low to eminence drainage and remote drainage to effectively improve separation efficiency.

The utility model provides a technical scheme that its technical problem adopted is: an easy-to-drain centrifugal separator comprises a rotating body and a frame,

a rotating body for centrifugally separating the liquid to be treated, the rotating body comprises a rotating body and a cover plate, the cover plate is detachably arranged above the rotating body, an overflow hole is formed in the cover plate, a nozzle is arranged below the rotating body, the water discharge of the overflow hole is not less than the water injection amount of the nozzle,

a baffle plate is arranged between the outer wall of the rotating body and the frame to form a collecting cavity for collecting the separation liquid, a collecting port communicated with the outside of the frame is arranged on the collecting cavity,

still include annular breakwater and drain pipe, annular breakwater sets up edge outside the apron, be used for keeping the separating fluid in the apron top, drain pipe one end stretches into annular breakwater, the other end extends the frame outside, be used for discharging the separating fluid that keeps in the apron top outside the frame, collect the separating fluid through annular breakwater, then the reuse stretches into the drain pipe of annular breakwater and directly discharges the separating fluid, thereby avoid the separating fluid to exert the resistance to the rotating body, accelerate the discharge of separating fluid, ensure the separation effect.

In some embodiments, the annular water baffle is provided with an upper bottom and a lower bottom, the diameter of the upper bottom is smaller than that of the lower bottom, and the upper bottom and the lower bottom are connected through a smooth curve or a straight line, so that the separation liquid can be kept above the cover plate for collection while being blocked.

In some embodiments, the bottom of the drain pipe is provided with a water inlet, the top of the drain pipe is provided with a water outlet, the water inlet is arranged in the annular water baffle, and the opening direction of the water inlet is opposite to the rotating direction of the rotating body, so that the separation liquid can smoothly enter the drain pipe under the action of rotating inertia.

In some embodiments, the connecting line of the water inlet and the water outlet is not tangent to the centrifugal circle of the rotating body, so that the separation liquid has certain impact force and is convenient to discharge smoothly.

In some embodiments, the side of the water inlet, which is far away from the annular water baffle, is provided with an inclined surface, so that the separated liquid can enter the drain pipe more conveniently.

In some embodiments, an extension cavity capable of accommodating the annular water baffle is arranged above the collection cavity, and the inner diameter of the extension cavity is not smaller than that of the collection cavity, so that the annular water baffle and the drain pipe are convenient to install.

In some embodiments, a first guide plate and a second guide plate are arranged outside the annular water baffle plate, and the first guide plate and the second guide plate are oppositely arranged in the extension cavity, so that the centrifugal liquid can sequentially flow into the collection cavity through the first guide plate and the second guide plate, and the overflowed centrifugal liquid is guided to the collection cavity, so as to avoid influencing the normal rotation of the rotating body.

The beneficial effect of the utility model is that,

(1) The utility model provides an easy-to-drain centrifugal separator, which is characterized in that through the matching of an annular water baffle and a drain pipe, the separation liquid is collected in a centralized way and then directly drained out of the separator body, so that the water drainage from a low position to a high position and the remote water drainage are realized, and the separation efficiency is effectively improved;

(2) The utility model provides an easy-to-drain centrifugal separator, which avoids the resistance of the separation liquid to the rotator caused by the backflow of the separation liquid through the arrangement of the water inlet and the diversion inclined plane at the water inlet which are arranged in the opposite direction of the rotation direction of the rotator, and is beneficial to the smooth entering of the separation liquid into the drain pipe so as to accelerate the drainage progress;

(3) The utility model provides a centrifuge of easy drainage through set up the guide plate in annular breakwater outside, will cause the bottom from the separating liquid that the inslot spilled over to collect the chamber to discharge from collecting the mouth, thereby avoid the separating liquid that spills over to cause the influence to the normal rotation of rotator.

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

FIG. 1 is a schematic view of a centrifuge;

fig. 2 is a schematic structural view of a rotating body;

FIG. 3 is a schematic view of the installation of a drain pipe;

FIG. 4 is a schematic view of the inner side surface of the annular water baffle being a cambered surface;

FIG. 5 is a schematic view of the inner side surface of the annular water baffle being a single plane;

FIG. 6 is a schematic view of the inner side surface of the annular water baffle being biplanar;

FIG. 7 is a schematic view of the inner side surface of the annular water baffle being a combination of a cambered surface and a flat surface;

in the figure, 1, 11, 12, 13, overflow holes, 14, a nozzle, 2, a frame, 21, a partition board, 22, a collecting cavity, 23, a collecting port, 24, an extending cavity, 3, an annular water baffle, 31, an upper bottom, 32, a lower bottom, 4, a drain pipe, 41, a water inlet, 42, a water outlet, 5, a first guide plate and 6, a second guide plate are arranged in sequence.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.

Traditional centrifugal separator includes rotator 1 and frame 2, wherein, rotator 1, a centrifugal separation is carried out to the processing object liquid, rotator 1 includes rotator body 11 and apron 12, apron 12 can dismantle the setting in rotator body 11 top, it has overflow hole 13 to open on the apron 12, overflow hole 13 is convenient for the parting liquid to spill over when high-speed rotatory, rotator body 11 below is equipped with nozzle 14, nozzle 14 is used for spouting processing object liquid into rotator 1, the displacement of overflow hole 13 is not less than nozzle 14's water injection volume, be equipped with baffle 21 between rotator body 11 outer wall and the frame 2, form the collection chamber 22 that is used for the parting liquid to collect, it has the collection mouth 23 with the outside intercommunication of frame 2 to open on the collection chamber 22.

The rotating body 11 is provided with an upper opening and a lower opening, the diameter of the upper opening is larger than that of the lower opening, and the diameter of any position between the upper opening and the lower opening is not larger than that of any position at the upper part. That is, the rotor body 11 may be a cone, a cone with an arc transition, a combination of a cone and a column, or a combination of a cone with an arc transition and a column, and mainly satisfies that the diameter of the upper opening is larger than that of the lower opening, and the diameter of any portion between the upper opening and the lower opening is not larger than that of any portion of the upper opening.

The treatment target liquid may be a used coolant (liquid), a lubricating oil, a cutting fluid, a used polishing slurry, a polishing liquid, or other recyclable liquids containing additives, but is not limited thereto.

When centrifugal operation is performed, the liquid to be treated is sprayed into the rotating body 11 through the nozzle 14, separation based on a difference in specific gravity is performed by using a centrifugal force thereof, solid or semisolid sludge having a large specific gravity tends to be deposited in a pressing manner toward the inner side wall of the rotating body 1, and the separated liquid tends to move upward under the effect that the diameter of the upper opening of the rotating body 1 is larger than that of the lower opening, and then overflows from the overflow port 13 of the cover plate 12 and enters the collection chamber 22 between the outer wall of the rotating body 11 and the housing 2, and is discharged from the collection port 23 provided in the collection chamber 22 to be recovered.

In order to provide a certain pressure for drainage to realize drainage from a low position to a high position, the centrifugal separator easy to drain is designed, as shown in figures 1 and 2, on the basis of a traditional centrifugal separator, a cover plate 12 is widened and thickened, an annular water baffle 3 is arranged on the outer edge of the cover plate 12, the annular water baffle 3 collects separation liquid overflowing from an overflow hole 13 of the cover plate 12, then the separation liquid is discharged out of the centrifugal separator through a drain pipe 4 arranged between the water baffle and a rack 2, one end of the drain pipe 4 extends into the annular water baffle 3, and the other end of the drain pipe extends out of the rack 2.

In order to hold the separated liquid completely, the diameter of the upper bottom 31 of the annular water guard plate 3 is set smaller than that of the lower bottom 32, and the upper bottom 31 and the lower bottom 32 are connected by a smooth curve or a straight line, so that the separated liquid is kept above the cover plate 12. When the connecting line of the upper bottom 31 and the lower bottom 32 is a smooth curve, as shown in fig. 4; when the connecting line of the upper bottom 31 and the lower bottom 32 is a single-segment straight line, as shown in fig. 5; when the line connecting the upper bottom 31 and the lower bottom 32 is a two-segment straight line, as shown in fig. 6; when the line connecting the upper bottom 31 and the lower bottom 32 is a combination of a smooth curve and a straight line, as shown in fig. 7. The connection modes are that the diameter of the upper bottom 31 is smaller than that of the lower bottom 32, so that the thrown separation liquid can be stably kept at the inner side of the water baffle 3, and the separation liquid can be conveniently collected by the drain pipe 4 and then discharged.

In order to make room for the arrangement of the annular water baffle 3, an extension cavity 24 is additionally arranged above the collecting cavity 22, the inner diameter of the extension cavity 24 is not smaller than that of the collecting cavity 22, the extension cavity 24 is arranged above the collecting cavity 22 in a protruding mode, and the extension cavity 24 is communicated with the collecting cavity 22.

In order to avoid that the separation liquid exerts resistance to the rotating body 1 in the discharging process and further improve the water discharging efficiency, a first guide plate 5 and a second guide plate 6 are arranged outside the annular water baffle 3, the first guide plate 5 and the second guide plate 6 are oppositely arranged in the extension cavity 24, so that the centrifugal liquid can flow into the collection cavity 22 through the first guide plate 5 and the second guide plate 6 in sequence, a small amount of separation liquid overflowing from the annular water baffle 3 can be guided to the collection cavity 22 to be discharged, the influence on the normal operation of the rotating body 1 is avoided, and the normal operation of centrifugation is ensured.

As shown in FIG. 3, in order to facilitate the discharge of the centrifugate, the bottom of the drainage pipe 4 is provided with a water inlet 41, the top of the drainage pipe 4 is provided with a water outlet 42, the water inlet 41 is arranged in the annular water baffle 3, and the opening direction of the water inlet 41 is opposite to the rotating direction of the rotating body 1.

In order to make the separation liquid have a certain inertial impact force, a line connecting the water inlet 41 and the water outlet 42 is set so as not to be tangent to the centrifugal circle of the rotating body 11.

In order to enable the separation liquid accumulated in the annular water baffle 3 to smoothly enter the drain pipe 4, one side of the water inlet 41, which is far away from the annular water baffle 3, is set to be an inclined surface, so that the water inlet 41 of the drain pipe 4 is in a shovel shape, and the separation liquid in the water collecting tank can be collected to the maximum extent.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A centrifugal separator easy to drain water, which comprises a rotating body (1) and a frame (2),

the rotating body (1) is used for centrifugally separating liquid to be treated, the rotating body (1) comprises a rotating body (11) and a cover plate (12), the cover plate (12) is detachably arranged above the rotating body (11), an overflow hole (13) is formed in the cover plate (12), a nozzle (14) is arranged below the rotating body (11), the water discharge amount of the overflow hole (13) is not less than the water injection amount of the nozzle (14),

a partition plate (21) is arranged between the outer wall of the rotating body (11) and the rack (2) to form a collecting cavity (22) for collecting the separation liquid, a collecting port (23) communicated with the outside of the rack (2) is arranged on the collecting cavity (22),

the device is characterized by further comprising an annular water baffle (3) and a water discharge pipe (4), wherein the annular water baffle (3) is arranged on the outer edge of the cover plate (12) and used for keeping separation liquid above the cover plate (12), one end of the water discharge pipe (4) extends into the annular water baffle (3), and the other end of the water discharge pipe extends to the outside of the rack (2) and is used for discharging the separation liquid above the cover plate (12) to the outside of the rack (2).

2. An easy-to-drain centrifugal separator according to claim 1, wherein the annular water baffle (3) is provided with an upper bottom (31) and a lower bottom (32), the diameter of the upper bottom (31) is smaller than that of the lower bottom (32), and the upper bottom (31) and the lower bottom (32) are connected by a smooth curve or a straight line.

3. An easy-to-drain centrifugal separator according to claim 1, wherein the bottom of the drain pipe (4) is provided with a water inlet (41), the top of the drain pipe (4) is provided with a water outlet (42), the water inlet (41) is arranged in the annular water baffle (3), and the opening direction of the water inlet (41) is opposite to the rotation direction of the rotating body (1).

4. A centrifugal separator with easy water discharge according to claim 3, wherein the line connecting the water inlet (41) and the water outlet (42) is not tangent to the centrifugal circle of the rotating body (11).

5. A centrifugal separator easy to drain water according to claim 3, wherein the side of the water inlet (41) far away from the annular water baffle (3) is provided with an inclined surface.

6. An easy-to-drain centrifugal separator according to claim 1, wherein an extension cavity (24) for accommodating the annular water baffle (3) is arranged above the collection cavity (22), and the inner diameter of the extension cavity (24) is not less than that of the collection cavity (22).

7. An easy-to-drain centrifugal separator according to claim 6, wherein the annular water baffle (3) is externally provided with a first flow guide plate (5) and a second flow guide plate (6), the first flow guide plate (5) and the second flow guide plate (6) are oppositely arranged in the extension cavity (24), so that the centrifugal liquid can flow into the collection cavity (22) through the first flow guide plate (5) and the second flow guide plate (6) in sequence.