CN218130094U - Centrifugal extractor - Google Patents

Abstract

The utility model discloses a centrifugal extractor, centrifugal extractor includes: a body; the driving device is fixedly connected to the machine body; the rotary drum is arranged in the machine body; one end of the rotating shaft structure is connected with the driving device, the other end of the rotating shaft structure rotates in the rotary drum, and a plurality of nozzles are arranged on the side wall of the rotating shaft structure to spray cleaning liquid to the inner side of the rotary drum; the check valve is arranged at one end of the rotating shaft structure, which is far away from the driving device, and the check valve is a rotation center symmetrical check valve. The rotation center symmetrical check valve is used, so that the situation that the residual liquid flows back to pollute the ground in the cleaning and running switching process of the centrifugal machine can be avoided; on the other hand, the conditions of abnormal sound, vibration and even side turning of the centrifuge caused by unbalanced gravity center in the high-speed operation process of the centrifuge under the condition of using other valves can be avoided.

Description

Centrifugal extractor

Technical Field

The utility model relates to a centrifugal extractor.

Background

Centrifugal extraction is a technique that uses centrifugal force to transfer substances from one solvent to another by changing the solubility or partition coefficient of two solvents that are not soluble (or slightly soluble) with each other. Is a unit operation that takes advantage of the different solubilities of the components in the system in the solvent to separate the mixture.

In the operation process of the centrifugal extractor, because raw materials possibly contain insoluble impurities or solid matters and the like formed by reaction of two phases possibly occurring in the extraction process move to the inner wall of the rotary drum or a mixing chamber under the action of centrifugal force and are continuously accumulated, the flow field in the rotary drum is changed, the separation degree of the two phases is damaged, and the separation efficiency is influenced. It is therefore necessary to periodically flush the inside of the drum to restore the separation efficiency.

In addition, the rotating shaft of the centrifugal extractor with the flushing device in the prior art is generally designed to be hollow, and a plurality of nozzles are uniformly arranged on the side wall of the rotating shaft to flush the inside of the centrifugal extractor. Because the hollow rotating shaft of the centrifugal extractor is subject to the requirements of load bearing and material circulation space, the diameter of the hollow rotating shaft is generally small, the flux of cleaning liquid flowing through the hollow rotating shaft is limited, the cleaning time of equipment is long, and the production operation efficiency is influenced.

In the prior art, one end of a rotating shaft of the centrifugal extractor with a flushing device is not provided with a check valve generally, but the root of a hollow rotating shaft is connected with a quick connector which is directly connected with the quick connector on a matched pipeline. After the inside of the centrifuge is cleaned, before the centrifuge is ready to be started, the quick connector needs to be pulled out, and the pipeline is disconnected from the centrifuge. At the moment, residual liquid in the rotary drum or the jacket rotary shaft flows out of the jacket pipeline due to gravity, so that the ground is polluted.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a centrifugal extraction machine for overcoming among the prior art quick-operation joint lug connection on quick-operation joint and the pipeline that matches, in the rotary drum or the interior residual liquid that presss from both sides in the cover pivot will flow out in the jacketed pipe way because of gravity, pollute above-mentioned defects such as ground.

The utility model discloses a solve above-mentioned technical problem through following technical scheme:

a centrifugal extractor, comprising: a body; the driving device is fixedly connected to the machine body; the rotary drum is arranged in the machine body;

one end of the rotating shaft structure is connected with the driving device, the other end of the rotating shaft structure rotates in the rotary drum, and a plurality of nozzles are arranged on the side wall of the rotating shaft structure to spray cleaning liquid to the inner side of the rotary drum;

the check valve is arranged at one end of the rotating shaft, which is structurally far away from the driving device, and the check valve is a rotation center symmetric check valve.

In this scheme, the check valve adopts the symmetry formula check valve of center of rotation, when adopting the valve of other forms, though can also prevent the raffinate refluence, nevertheless because of the valve is asymmetric form, when centrifuge operation, probably because of centrifuge barycenter is unbalanced, and lead to centrifuge abnormal sound, vibrations, the possibility of turning on one's side even.

Preferably, the rotating shaft structure includes a solid rotating shaft fixedly connected to the driving device and a jacket sleeve sleeved outside the solid rotating shaft, and the nozzle is disposed on a side wall of the jacket sleeve.

Preferably, the solid rotating shaft is coaxially arranged in the tube body of the jacket tube, a liquid channel is arranged between the inner wall of the jacket tube and the outer wall of the solid rotating shaft, and the liquid channel is communicated with the nozzle.

Preferably, the solid rotating shaft and the jacket pipe extend in a direction away from the rotating drum, and the extending end of the jacket pipe extends out of the machine body so that the liquid channel is communicated with the outer side of the machine body.

In this scheme, adopt above-mentioned structural style, the supporting formula design of solid pivot and jacket pipe, because of the jacket part does not bear load weight and inside the rotary drum, the broad that jacket diameter can set up, the washing liquid flux is great, and then shortens the scavenging period, improves operation cycle.

In this scheme, adopt above-mentioned structural style, the hollow rotating shaft among the prior art is carried out structural improvement with solid pivot and jacketed pipe's supporting formula design benefit, and the jacketed pipe can be through the effectual external load that bears of solid pivot when guaranteeing to wash the operation and normally going on for this centrifugal extraction machine can realize washing the function under the condition that need not tear open the machine, and the centrifugal extraction machine of different size and different rotational speeds can be satisfied in such design.

Preferably, the centrifugal extractor further comprises a feed inlet, and the feed inlet is arranged at the bottom of the rotary drum and communicated with the machine body along the radial direction of the rotary drum.

Preferably, the centrifugal extractor further comprises a liquid discharge port, and the liquid discharge port is arranged at one end of the body far away from the driving device and communicated with the rotary drum.

In this scheme, centrifugal extraction machine adopts such structural layout not only rationally simple, does benefit to the cleaning efficiency who improves centrifugal extraction machine simultaneously.

Preferably, the check valve is a rotational center symmetric check valve.

Preferably, the check valve is detachably connected with an external infusion tube.

Preferably, the detachable connection is realized by installing a quick connector, a flange connection or a threaded connection.

Detachable connected mode such as quick-operation joint's use is convenient for operating personnel to connect and break off external transfer line and check valve, and the operating personnel can not appear the condition that liquid outflows when pulling out quick-operation joint after washing to promote production operating efficiency.

Preferably, the nozzle is a conical nozzle.

Preferably, the cone angle of the conical nozzle is, for example, 60 to 120 degrees.

Preferably, the nozzle material is titanium, 2205, 316L, 304 or polytetrafluoroethylene.

In this scheme, adopt above-mentioned structure and material, do benefit to the washing effect that improves the nozzle to the drum inner wall, do benefit to simultaneously and improve its life.

On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.

The utility model discloses an actively advance the effect and lie in:

1. the rotation center symmetrical check valve is used, so that the situation that residual liquid flows back to pollute the ground in the process of cleaning and running switching of the centrifugal machine can be avoided; on the other hand, the conditions of abnormal sound, vibration and even side turning of the centrifuge caused by unbalanced gravity center in the high-speed operation process of the centrifuge under the condition of using other valves can be avoided.

2. The utility model discloses well solid pivot and jacket sleeve's supporting formula design does not bear load weight and inside the rotary drum because of pressing from both sides the cover part, presss from both sides the broad that the cover diameter can set up, and the washing liquid flux is great, and then shortens the scavenging period, improves the operating cycle.

3. The utility model discloses well centrifugal extraction machine design can apply to different mixing intensity, and in various big and small equipment, the machine of effectively realizing exempting from to tear open carries out equipment and washes, shortens the plant maintenance cycle, can realize washing the inside of centrifugal extraction machine under the condition that need not tear open the machine.

Drawings

Fig. 1 is a schematic structural diagram of a centrifugal extractor according to an embodiment of the present invention.

Fig. 2 is a schematic view of a partial structure of a solid rotating shaft and a jacket pipe according to an embodiment of the present invention.

Description of reference numerals:

machine body 1

Drive device 2

Feed inlet 3

Solid rotating shaft 4

Check valve 5

Liquid discharge port 6

Quick coupling 7

Rotary drum 8

Nozzle 9

Jacketed pipe 10

Detailed Description

The present invention will be more clearly and completely described below by way of examples and with reference to the accompanying drawings, but the present invention is not limited thereto.

The embodiment of the utility model provides a centrifugal extractor, as shown in fig. 1-2, centrifugal extractor includes: a machine body 1; the driving device 2 is fixedly connected to the machine body 1; the rotary drum 8, the rotary drum 8 locates in organism 1; one end of the rotating shaft structure is connected with the driving device 2, the other end of the rotating shaft structure rotates in the rotary drum 8, and a plurality of nozzles 9 are arranged on the side wall of the rotating shaft structure to spray cleaning liquid to the inner side of the rotary drum 8; the check valve 5 is arranged at one end, far away from the driving device 2, of the rotating shaft structure, and the check valve 5 is a rotation center symmetrical type check valve.

In this embodiment, the centrifugal extractor includes a body 1, a driving device 2 is fixedly mounted above the body 1, the driving device 2 employs a motor, a rotary drum 8 is disposed at a lower position in the body 1, and a rotary shaft structure is disposed in the body 1, the rotary shaft structure includes a solid rotary shaft 4 and a clamping sleeve 10, one end of the solid rotary shaft 4 is connected to an output shaft of the motor through a coupling, the other end of the solid rotary shaft 4 extends into the rotary drum 8 to perform a rotary motion, a clamping sleeve 10 is sleeved outside the solid rotary shaft 4, an upper end of the clamping sleeve 10 is welded to the solid rotary shaft 4, a lower end of the clamping sleeve 10 extends out of the body 1, a check valve 5 is mounted on an extending end of each clamping sleeve 10 to communicate with an external infusion tube, the check valve 5 employs a rotation center symmetric check valve, a plurality of nozzles 9 are uniformly mounted on a side wall of the clamping sleeve 10, when a cleaning operation is performed, the centrifugal extractor stops operating, a cleaning solution enters the clamping sleeve 10 from bottom to top, and the cleaning solution is sprayed to an inner wall of the rotary drum 8 through the nozzles 9 on the clamping sleeve 10 to implement a cleaning solution for cleaning inside of the centrifugal extractor.

In the utility model, the check valve with symmetrical rotation center is used, on one hand, the situation that the residual liquid flows backwards to pollute the ground in the cleaning and operation switching process of the centrifuge can be avoided; on the other hand, the conditions of abnormal sound, vibration and even side turning of the centrifuge caused by unbalanced gravity center in the high-speed operation process of the centrifuge under the condition of using other valves can be avoided.

In the present invention, the nozzle 9 is a conical nozzle, and the cone angle of the conical nozzle is 60 to 120 degrees. Because the pressure of the cleaning liquid is 0.3-0.8 Mpa, when the conical nozzle with the cone angle of 60-120 degrees is adopted, the cleaning liquid generates proper impact force when passing through the nozzle, thereby achieving the purpose of high-efficiency cleaning.

The nozzle 9 is made of titanium, 2205, 316L, 304 or polytetrafluoroethylene. So as to be beneficial to improving the washing effect of the nozzle 9 on the inner wall of the rotary drum 8 and simultaneously being beneficial to improving the service life of the rotary drum.

As shown in fig. 1-2, the rotating shaft structure includes a solid rotating shaft 4 fixedly connected to the driving device 2 and a jacket sleeve 10 sleeved outside the solid rotating shaft 4, and a nozzle 9 is disposed on a sidewall of the jacket sleeve 10.

In this embodiment, with the above structure, the solid shaft and the jacket pipe are designed in a matching manner, and the jacket part does not bear the load weight and is arranged inside the rotary drum, so that the diameter of the jacket can be set wider, the flux of the cleaning solution is larger, the cleaning time is shortened, and the operation period is prolonged.

In this embodiment, adopt above-mentioned structural style, the hollow rotating shaft among the prior art is carried out structural improvement with solid pivot and jacketed pipe's supporting formula design benefit, and the jacketed pipe can be through the effectual external load that bears of solid pivot when guaranteeing to wash the operation and normally going on for this centrifugal extraction machine can realize washing function under the condition that need not tear open the machine, and the centrifugal extraction machine of different size and different rotational speeds can be satisfied in such design.

As shown in fig. 1-2, the solid rotating shaft 4 is coaxially disposed in the tube body of the jacket tube 10, and a liquid passage is disposed between the inner wall of the jacket tube 10 and the outer wall of the solid rotating shaft 4, and the liquid passage is communicated with the nozzle 9. Meanwhile, the solid rotating shaft 4 and the jacket sleeve 10 extend in a direction away from the rotary drum 8, and the extending end of the jacket sleeve 10 extends out of the machine body 1 so that the liquid passage is communicated with the outer side of the machine body 1.

In this embodiment, a jacket tube 10 is coaxially disposed inside the rotary drum 8, a solid rotating shaft 4 is coaxially disposed inside the jacket tube 10, a liquid passage is disposed between an inner wall of the jacket tube 10 and an outer wall of the solid rotating shaft 4, an upper end of the jacket tube 10 is welded and fixed to the solid rotating shaft 4, and a lower end of the jacket tube 10 extends out of the machine body 1 and is communicated with an external infusion tube outside the machine body 1. When cleaning, the cleaning liquid enters the liquid channel in the jacketed pipe 10 from bottom to top under the pressure value of 0.5-0.8 Mpa, and then is respectively sprayed out from the nozzle 9 on the jacketed pipe 10 to the inner wall of the rotary drum 8. The matching design of the solid rotating shaft 4 and the jacket sleeve 10 skillfully improves the hollow rotating shaft in the prior art, the jacket sleeve 10 can effectively bear external load through the solid rotating shaft 4 while ensuring normal operation of washing, so that the centrifugal extractor can realize the washing function without disassembling the extractor, and the design can meet the requirements of centrifugal extractors with different sizes and rotating speeds.

As shown in fig. 1-2, the centrifugal extractor further comprises a feed inlet 3, wherein the feed inlet 3 is arranged at the bottom of the rotary drum 8 and is communicated with the machine body 1 along the radial direction of the rotary drum 8. Meanwhile, the centrifugal extractor also comprises a liquid outlet 6, wherein the liquid outlet 6 is arranged at one end of the extractor body 1 far away from the driving device 2 and communicated with the rotary drum 8.

In the embodiment, the two sides of the root of the machine body 1 are provided with the feed inlets 3 along the opposite direction, the bottom of one end of the machine body 1 far away from the driving device 2 is communicated with the liquid outlet 6,

before cleaning, the centrifugal extractor is stopped and stops running, the quick connector 7 is connected with an external infusion tube, cleaning liquid enters a liquid flow channel in the jacketed pipe 10 and is sprayed to the inner wall of the rotary drum 8 through the configured nozzle 9, the high-pressure cleaning liquid washes solid matters deposited on the inner wall of the rotary drum 8 and then is discharged out of the extractor body 1 through the liquid discharge port 6, and the centrifugal extractor adopting the structure layout is reasonable and simple, and is beneficial to improving the cleaning efficiency of the centrifugal extractor.

As shown in fig. 1-2, the end of the liquid passage remote from the driving means 2 is provided with a non-return valve 5. And the check valve 5 is a rotational center symmetric check valve. Meanwhile, the check valve 5 is detachably connected with an external infusion tube. The check valve 5 is a spherical check valve with a rotation center symmetry type, such as a vertical type check valve, a noise elimination type check valve, a mute type check valve, a straight-through type check valve or a double-flap type check valve, so that abnormal sound and vibration of the centrifuge, even rollover caused by unbalanced center of gravity can be effectively avoided.

In this embodiment, the check valve 5 is fitted with a quick connector 7 for detachable connection to a foreign infusion line. Of course, in other embodiments, the detachable connection is achieved by a flange connection or a threaded connection.

In this embodiment, the check valve 5 is welded to the jacket sleeve 10 at an end away from the driving device 2 and extending out of the machine body 1, and rotates at a high speed together with the rotating shaft during operation, and the check valve 5 is a transversely and radially symmetrical check valve, which is beneficial to preventing the center of gravity of two sides from being unbalanced during high-speed rotation.

Before cleaning, the equipment is shut down, the operation is stopped, the quick connector 7 is connected with an external infusion tube, cleaning liquid (the cleaning liquid can be pure water, tap water, hot water, a solvent, a weakly acidic reagent, a weakly alkaline reagent and the like) enters the jacketed pipe 10 under the pressure of 0.3-0.8 Mpa, the cleaning liquid is sprayed to the inner wall of the rotary drum 8 through the configured nozzle 9, solid substances deposited on the inner wall of the rotary drum 8 are washed by hydraulic pressure, then the solid substances are discharged out of the machine body 1 through the liquid discharge port 6, and the quick connector 7 is pulled out after the cleaning is finished. Quick-operation joint 7's use is convenient for operating personnel to connect and break off external transfer line and check valve 5, and operating personnel can not appear the condition that liquid outflows when pulling out quick-operation joint 7 after washing to promote production operating efficiency.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims (10)

1. A centrifugal extractor, comprising:

a body;

the driving device is fixedly connected to the machine body;

the rotary drum is arranged in the machine body;

one end of the rotating shaft structure is connected with the driving device, the other end of the rotating shaft structure rotates in the rotary drum, and a plurality of nozzles are arranged on the side wall of the rotating shaft structure to spray cleaning liquid to the inner side of the rotary drum;

the check valve is arranged at one end of the rotating shaft, which is structurally far away from the driving device, and the check valve is a rotation center symmetrical check valve.

2. A centrifugal extractor as claimed in claim 1, wherein said rotating shaft structure includes a solid rotating shaft fixedly connected to said driving device and a jacket sleeve sleeved outside said solid rotating shaft, and said nozzle is disposed on a side wall of said jacket sleeve.

3. A centrifugal extractor as claimed in claim 2, wherein said solid spindle is coaxially disposed within said jacket tube body, a fluid passage is provided between the inner wall of said jacket tube and the outer wall of said solid spindle, said fluid passage being in communication with said nozzle.

4. A centrifugal extractor according to claim 3, wherein said solid spindle and said jacketed pipe extend in a direction away from said drum, and the extended end of said jacketed pipe extends out of said body so that said fluid passage communicates with the outside of said body.

5. The centrifugal extractor of claim 1, further comprising a feed inlet disposed at the bottom of the drum and in communication with the body in a radial direction of the drum.

6. A centrifugal extractor as claimed in claim 1, further comprising a liquid discharge port disposed at an end of said body remote from said drive unit and in communication with said drum.

7. A centrifugal extractor as claimed in claim 1, wherein said check valve is a rotationally symmetric check valve.

8. A centrifugal extractor according to claim 1 or 7, wherein said check valve is removably connected to an external fluid line.

9. A centrifugal extractor according to claim 1, wherein the nozzle is a conical nozzle having a cone angle of, for example, 60 to 120 degrees.

10. A centrifugal extractor as claimed in claim 1, wherein said nozzle is made of titanium, 2205, 316L, 304 or teflon.

Images