CN207770064U - A kind of anti-back-mixing structure of centrifuge - Google Patents

Abstract

A kind of anti-back-mixing structure of centrifuge, it includes rotary drum (1) and case (2), the case (2) is on rotary drum (1), case (2) is separated into light liquid chamber (5) and heavy-fluid chamber (6) using partition board one (3) and partition board two (4) in the case (2), the heavy-fluid phase outlet end of the rotary drum (1) is equipped with large flange (7), it is characterised in that：The periphery of the large flange (7) is equipped with raised rotating ring (8), the lower end of the partition board two (4) composition labyrinth seal structure (9) corresponding with raised rotating ring (8), guided rings one (10) are equipped with positioned at the bottom of partition board one (3) and partition board two (4) in the light liquid chamber (5), the heavy-fluid phase exit of the large flange (7) is equipped with guided rings two (11).Existing sealing is prevented that returning structure is changed to labyrinth seal structure, can effectively avoid the generation of centrifuge air-teturning mixed phenomenon, improve the separative efficiency of centrifuge by the anti-back-mixing structure of the centrifuge.

Description

A kind of anti-back-mixing structure of centrifuge

Technical field

It is exactly specifically to be related to a kind of anti-back-mixing structure of centrifuge, by labyrinth the utility model is related to arrive centrifuge Sealing structure realizes the generation of anti-air-teturning mixed phenomenon.

Background technology

Decanter centrifuge is the device for being separated by solid-liquid separation suspension material liquid using principle is centrifuged.There are one centrifuges Around the high-speed rotating cylinder of this body axis, referred to as rotary drum, usually by motor drive.After rotary drum is added in suspension, by rapid band Dynamic to be rotated at the same speed with rotary drum, each component detaches under the action of the centrifugal force, and is discharged respectively.With chemical industry, pharmacy, food industry It continues to develop, various materials emerge one after another, higher and higher to the required precision of separating and filtering equipment.But in separation liquid-liquid- Gu or when oil-liquid-solid three phase materials, due to the machining accuracy of equipment part, equipment install structure precision the problems such as, often Often after isolation, there is the phenomenon that liquid-liquid back-mixing.

Utility model content

The purpose of this utility model, when carrying out feed separation, is susceptible to air-teturning mixed phenomenon aiming at existing centrifuge Technological deficiency, a kind of anti-back-mixing structure of centrifuge is provided, structure is returned existing sealing is anti-and is changed to labyrinth seal structure, energy Enough generations for effectively avoiding centrifuge air-teturning mixed phenomenon, improve the separative efficiency of centrifuge.

Technical solution

In order to achieve the above technical purposes, the anti-back-mixing structure of a kind of centrifuge of the utility model design, it includes rotary drum And case is separated into light liquid chamber and again on the rotary drum by case, the case in the case using partition board one and partition board two The heavy-fluid phase outlet end of sap cavity, the rotary drum is equipped with large flange, it is characterised in that：The periphery of the large flange is equipped with protrusion Rotating ring, the lower end of the partition board two composition labyrinth seal structure corresponding with the raised rotating ring, the light liquid intracavitary be located at every The bottom of plate one and partition board two is equipped with guided rings one, and the heavy-fluid phase exit of the large flange is equipped with guided rings two.

Further, the labyrinth seal structure includes several end to end raised rotating rings, the lower end of the partition board two with The corresponding position of the protrusion rotating ring is equipped with several end to end grooves, between existing between the protrusion rotating ring and groove Gap.

Further, the cavity wall of the light liquid chamber is arc.

Advantageous effect

The anti-back-mixing structure of a kind of centrifuge provided by the utility model returns existing sealing is anti-structure to be changed to labyrinth type close Seal structure can effectively avoid the generation of centrifuge air-teturning mixed phenomenon, improve the separative efficiency of centrifuge.

Description of the drawings

Attached drawing 1 is the structural schematic diagram of the utility model.

Specific implementation mode

With reference to the accompanying drawings and examples, the utility model is described further.

Embodiment

As shown in Fig. 1, the anti-back-mixing structure of a kind of centrifuge, it includes rotary drum 1 and case 2, and the case 2 is mounted in rotary drum On 1, case 2 is separated into light liquid chamber 5 and heavy-fluid chamber 6 using partition board 1 and partition board 24 in the case 2, the rotary drum 1 Heavy-fluid phase outlet end is equipped with large flange 7, it is characterised in that：The periphery of the large flange 7 is equipped with raised rotating ring 8, it is described every The lower end of plate 24 composition labyrinth seal structure 9 corresponding with the protrusion rotating ring 8, the light liquid chamber 5 is interior to be located at one 3 He of partition board The bottom of partition board 24 is equipped with guided rings 1, and the heavy-fluid phase exit of the large flange 7 is equipped with guided rings 2 11.

The labyrinth seal structure 9 includes several end to end raised rotating rings 8, the lower end of the partition board 24 with it is described 8 corresponding position of raised rotating ring is equipped with several end to end grooves 401, exists between the protrusion rotating ring 8 and groove 401 Gap.

The cavity wall of the light liquid chamber 5 is arc.

When light liquid drains into light liquid chamber by centrifugal force, light liquid can strike to the inner wall of light liquid chamber and both sides partition board respectively. On impact to the inner wall of light liquid chamber, since inner wall is in circular arc type, light liquid can be because of gravitational effects, as inner wall circular shape is flow to At light liquid storage；And spill guided rings one can be flow to, by gravity because of gravitational effects by striking to the light liquid on the partition board of both sides With the guiding of spill guided rings one, by this part, light liquid is led at light liquid storage.In the heavy-fluid phase of the large flange in heavy-fluid chamber Export out setting guided rings two.It, under the influence of centrifugal force, can be along big method when heavy-fluid is discharged if the not guided rings two Blue outer wall climbs edge so that heavy-fluid flows into light liquid chamber, and the rate of recovery of light liquid is caused to decline.Guided rings two are arranged to draw the heavy-fluid of discharge It is directed at the side wall of case so that heavy-fluid will not be climbed along large flange outer wall along light liquid chamber is entered, and ensure the rate of recovery of light liquid.

Structure, ratio, size, quantity etc. depicted in the utility model embodiment institute accompanying drawings, only coordinating The bright revealed content of book, so that those skilled in the art understands and reads, being not limited to the utility model can implement Qualifications, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, In the case where not influencing the effect of the utility model can be generated and the purpose that can reach, should all still fall disclosed in the utility model Technology contents obtain and can cover in the range of.Meanwhile in this specification it is cited as "upper", "lower", "left", "right", " in Between ", the term of " clockwise ", " counterclockwise " etc., be merely convenient to being illustrated for narration, rather than can be real to limit the utility model The range applied, relativeness are altered or modified, can be real when being also considered as the utility model in the case where changing technology contents without essence The scope applied.

Claims (3)

1. a kind of anti-back-mixing structure of centrifuge, it includes rotary drum (1) and case (2), and the case (2) is on rotary drum (1), institute It states in case (2) and case (2) is separated into light liquid chamber (5) and heavy-fluid chamber (6) using partition board one (3) and partition board two (4), described turn The heavy-fluid phase outlet end of drum (1) is equipped with large flange (7), it is characterised in that：The periphery of the large flange (7) is equipped with lug Ring (8), the lower end of the partition board two (4) composition labyrinth seal structure (9) corresponding with raised rotating ring (8), the light liquid Guided rings one (10) are equipped with positioned at the bottom of partition board one (3) and partition board two (4) in chamber (5), the heavy-fluid of the large flange (7) mutually goes out Guided rings two (11) are equipped at mouthful.

2. a kind of anti-back-mixing structure of centrifuge as described in claim 1, it is characterised in that：Labyrinth seal structure (9) packet Include several end to end raised rotating rings (8), the lower end of the partition board two (4) position corresponding with raised rotating ring (8) Equipped with several end to end grooves (401), there are gaps between the protrusion rotating ring (8) and groove (401).

3. a kind of anti-back-mixing structure of centrifuge as described in claim 1, it is characterised in that：The cavity wall of the light liquid chamber (5) is Arc.