Anti-emulsification structure of centrifugal extractor

Abstract

The utility model relates to the field of centrifugal extractors, and discloses an anti-emulsification structure of a centrifugal extractor, which comprises a middle support plate of the centrifugal extractor, a casing is fixed at the lower end of the middle support plate, a rotary drum of the centrifugal extractor is vertically mounted in the casing, the lower end of the middle support plate is connected with an anti-emulsification sleeve, and the anti-emulsification sleeve is sleeved on the outer side of the rotary drum. Under the condition that an anti-emulsifying agent is not used and other conditions are not used, the sleeve is additionally arranged between the rotary drum and the inner wall of the machine shell, so that vortex and turbulent flow formed between the rotary drum rotating at a high speed and the inner wall of the static machine shell are reduced, and the emulsification phenomenon is avoided.

Description

Technical Field

[0001] The utility model relates to the field of centrifugal extractors, in particular to an anti-emulsification structure of a centrifugal extractor. Background Art

[0002] Centrifugal extractor is a high-efficiency liquid-liquid extraction equipment designed based on the principle of extraction and separation. It is widely used in hydrometallurgy, medicine, fine chemicals and other fields.

[0003] The main working process of the centrifugal extractor includes: mixing mass transfer and centrifugal separation. The centrifugal extractor drives the drum to rotate at high speed through the motor. Two liquids with different densities and immiscible with each other complete mixing mass transfer under the shear force generated by the rotation of the drum or blades, and are quickly separated under the centrifugal force generated by the high-speed rotation of the drum.

[0004] After the material enters the traditional centrifugal extractor, the strong stirring of the rotating drum and the outer shell produces complex eddies and turbulent areas, breaking up one phase of the material into tiny droplets. These small droplets can be dispersed into the other phase, causing the originally immiscible oil and water phases to mix with each other and cause emulsification. Utility Model Content

[0005] The utility model aims to provide an anti-emulsification structure of a centrifugal extractor to solve the problem of emulsification of materials between a rotating drum and a shell of the existing centrifugal extractor due to strong stirring of the drum.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an anti-emulsification structure of a centrifugal extractor, including a middle support plate of the centrifugal extractor, a casing is fixed at the lower end of the middle support plate, a drum of the centrifugal extractor is vertically installed in the casing, an anti-emulsification sleeve is connected to the lower end of the middle support plate, and the anti-emulsification sleeve is sleeved on the outer side of the drum.

[0007] Preferably, as an improvement, the gap width between the anti-emulsification sleeve and the drum is 1-5 mm.

[0008] Preferably, as an improvement, a step positioning surface is processed at the bottom of the middle support plate, a plurality of connecting holes are opened in a ring shape on the step positioning surface, a flange is fixed to the top end of the anti-emulsification sleeve, and the flange is connected to the middle support plate through bolts and connecting holes.

[0009] Preferably, as an improvement, the casing and the middle support plate, and the anti-emulsification sleeve and the flange are all welded and fixed.

[0010] The principles and advantages of this solution are: in actual application, the middle support plate serves as a structure that provides support for the casing in the centrifugal extractor. A flange joint is welded on the casing for connecting the feed pipe. The material enters the casing from the feed pipe. The drum rotates under the power of the centrifugal extractor to suck the material in the casing and centrifugally separate it into heavy liquid and light liquid. During the rotation of the drum, the outer side is isolated by an anti-emulsification sleeve, so that the rotation of the drum will not cause agitation to the material entering the casing, and will not generate eddy currents and turbulent areas, effectively avoiding the emulsification of the material in the casing. The gap range between the sleeve and the drum can more effectively ensure the high-speed and stable rotation of the drum, and will not emulsify the material. The connection structure between the sleeve and the middle support plate adopts a flange and bolt connection structure, which can be modified and processed on the existing middle support plate. The connection structure is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a partial cross-sectional view of an embodiment of the utility model in a centrifugal extractor. DETAILED DESCRIPTION

[0012] The following is further described in detail through specific implementation methods:

[0013] The reference numerals in the drawings of the specification include: a middle support plate 1, a rotating drum 2, an anti-emulsification sleeve 3, a casing 4, a flange 5, and a bolt 6.

[0014] The embodiment is basically as shown in the attached Figure 1 As shown: An anti-emulsification structure of a centrifugal extractor, including a middle support plate 1 of the centrifugal extractor, a through hole is provided in the middle of the middle support plate 1, and a barrel-shaped casing 4 is welded and fixed to the bottom of the middle support plate 1. A step positioning surface is processed on the bottom surface of the middle support plate 1 inside the casing 4, and a plurality of threaded connection holes are provided in a ring shape on the step positioning surface. The drum 2 of the centrifugal extractor is installed in the casing 4 vertically through the through hole in the middle of the middle support plate 1, and an anti-emulsification sleeve 3 is provided in the casing 4 and is sleeved on the outside of the drum 2, and the gap width between the anti-emulsification sleeve 3 and the drum 2 is 1-5mm. A flange 5 is welded and fixed to the top of the anti-emulsification sleeve 3, and the flange 5 is connected to the middle support plate 1 through bolts 6 and threaded connection holes.

[0015] The specific implementation process is as follows: when the centrifugal extractor is working, the material enters the housing 4 from the feed pipe welded and connected at the side end of the housing 4, the drum 2 rotates at high speed under the power drive of the centrifugal extractor, and the material enters from the bottom of the drum 2. Under the high-speed rotation of the drum 2, the material is centrifugally separated into heavy liquid and light liquid, and then discharged separately at the top of the drum 2. During the high-speed rotation of the drum 2, the outer side is isolated by the anti-emulsification sleeve 3, and the high-speed rotation of the drum 2 will not cause agitation of the material, and will not form eddy currents and turbulence, and then the material in the housing 4 will not be emulsified due to the rotation of the drum 2, and the material entering the drum 2 will not have the problem of incomplete separation of the light liquid and heavy liquid phases.

[0016] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An anti-emulsification structure of a centrifugal extractor, comprising a middle support plate of the centrifugal extractor, a casing is fixed at the lower end of the middle support plate, and a rotary drum of the centrifugal extractor is vertically installed in the casing, characterized in that: The lower end of the middle support plate is connected to an anti-emulsification sleeve, which is sleeved on the outside of the drum; the bottom of the middle support plate is processed with a step positioning surface, and a plurality of connecting holes are opened in a ring shape on the step positioning surface; a flange is fixed to the top of the anti-emulsification sleeve, and the flange is connected to the middle support plate through bolts and connecting holes.

2. The anti-emulsification structure of a centrifugal extractor according to claim 1, characterized in that: The width of the gap between the anti-emulsification sleeve and the drum is 1-5 mm.

3. The anti-emulsification structure of a centrifugal extractor according to claim 2, characterized in that: The casing and the middle supporting plate, as well as the anti-emulsification sleeve and the flange are all welded and fixed.

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