Light and heavy liquid separation mechanism of three-phase horizontal spiral centrifuge

Abstract

The utility model belongs to the technical field of centrifugal machines, and relates to a light and heavy liquid separation mechanism of a three-phase horizontal spiral centrifugal machine, which comprises a separation guide block connected with more than one oil suction pipe connecting hole used for being connected with an oil suction pipe; a light liquid collecting groove is formed in the position, close to the spiral conveying shaft, of the separation guide block and communicates with the oil suction pipe connecting hole. And more than one heavy liquid discharge channel is formed on the separation guide block. After the structure is adopted, the light and heavy liquid separation mechanism of the three-phase horizontal spiral centrifugal machine has the beneficial effects that the separation guide block is adopted, light liquid can be smoothly guided out through the oil suction pipe, and heavy liquid is guided out through the four heavy liquid discharge channels of the separation guide block, so that the separation effect is more stable and easy to realize; mutual interference between the light liquid phase and the heavy liquid phase is minimum, and the separation efficiency of the light liquid phase and the heavy liquid phase of the three-phase horizontal spiral centrifugal machine is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of centrifuges, in particular to a light and heavy liquid separation mechanism of a three-phase horizontal spiral centrifuge. Background Art

[0002] Three-phase horizontal spiral centrifuges are primarily used for solid-liquid-liquid separation, i.e., the simultaneous separation of a solid phase (with the largest specific gravity) and two liquid phases of different specific gravities. Their working principle is as follows: under the action of centrifugal force, the material forms three relatively stable layers: a solid phase layer, a heavy liquid layer, and a light liquid layer, starting from the drum wall and moving inward. The solid phase layer, propelled by the spiral propeller, moves toward the small end of the drum and is discharged from the slag discharge port; the heavy liquid layer and the light liquid layer flow along the channels between the spiral blades toward the large end of the drum and are then discharged from different outlets, achieving continuous three-phase separation. This is the structure of a three-phase horizontal spiral centrifuge disclosed in Patent Publication No. CN211385420U.

[0003] Existing three-phase horizontal spiral centrifuges use a suction pipe that penetrates into the light liquid layer to separate light and heavy liquids. At the separation end, the light and heavy liquid phases rotate and separate into layers simply by virtue of their different specific gravities. However, because the suction pipe constantly stirs relative to each other in the separation space, it causes disturbances in the liquid phase at the separation end, resulting in unsatisfactory separation results. Therefore, improvements are necessary. Utility Model Content

[0004] In order to solve the above problems in the prior art, the utility model provides a light and heavy liquid separation mechanism for a three-phase horizontal spiral centrifuge, which has a simple structure and good separation effect.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] As one aspect of the present invention, a light and heavy liquid separation mechanism for a three-phase horizontal spiral centrifuge is provided, comprising: a separation guide block connected to the inner side of the large end of the three-phase horizontal spiral centrifuge body, the separation guide block being annular, the inner ring of which is in contact with the spiral conveying shaft of the three-phase horizontal spiral centrifuge body, and the outer ring of which is detachably connected to the inner wall of the drum of the three-phase horizontal spiral centrifuge body;

[0007] The separation guide block is connected with one or more oil pumping pipe connection holes for connecting with the oil pumping pipe;

[0008] The separation guide block is formed with a light liquid collecting groove near the spiral conveying shaft, a light liquid collecting space is formed between the light liquid collecting groove and the spiral conveying shaft, and the light liquid collecting groove is connected to the oil pumping pipe connection hole;

[0009] One or more heavy liquid discharge channels are formed on the separation guide block, and the heavy liquid discharge channels are communicated with the heavy liquid outlet of the three-phase horizontal spiral centrifuge body.

[0010] Optionally, there are four heavy liquid discharge channels.

[0011] Optionally, the heavy liquid discharge channel includes a first horizontal through groove and a second oblique through groove, and the first horizontal through groove is communicated with the second oblique through groove.

[0012] Optionally, the first horizontal through slot is close to the rotating drum.

[0013] Optionally, a boss is formed on one side of the separation guide block close to the large end of the three-phase horizontal spiral centrifuge body, and the boss cooperates with the three-phase horizontal spiral centrifuge body.

[0014] Optionally, one or more sealing connection grooves are provided on the outer wall of the separation guide block.

[0015] Optionally, a connecting groove is formed on the outer end surface of the oil sucking pipe connecting hole.

[0016] The light and heavy liquid separation mechanism of the three-phase horizontal spiral centrifuge of the present invention has the following beneficial effects: the use of a separation guide block minimizes the agitation effect of the oil pumping pipe on the entire liquid phase, the light liquid can be smoothly discharged from the oil pumping pipe, and the heavy liquid is discharged through the four heavy liquid discharge channels of the separation guide block, making the separation effect more stable and easy to achieve, and minimizing the mutual interference between the light and heavy liquid phases, thereby improving the light and heavy liquid phase separation efficiency of the three-phase horizontal spiral centrifuge; the traditional single oil pumping pipe structure has high strength requirements for the oil pumping pipe because the oil pumping pipe is stirred in the medium for a long time, and the presence of the separation guide block also greatly extends the service life of the oil pumping pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings in the specification, which constitute a part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0018] Figure 1 This is a schematic diagram of the structure of the light and heavy liquid separation mechanism of the three-phase horizontal spiral centrifuge of the utility model. Figure 1 ;

[0019] Figure 2 This is a cross-sectional view of the structure of the light and heavy liquid separation mechanism of the three-phase horizontal spiral centrifuge of the utility model. Figure 2 ;

[0020] Figure 3 This is a structural diagram of the separation guide block of the present utility model. DETAILED DESCRIPTION

[0021] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the following will provide a clear and complete description of the technical solutions of the present invention in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0022] In one embodiment of the present application, a light and heavy liquid separation mechanism of a three-phase horizontal spiral centrifuge is provided. Figure 1-Figure 3 As shown, it includes: a separation guide block 2 connected to the large end of the three-phase horizontal spiral centrifuge body 1. It should be noted that the structure of the three-phase horizontal spiral centrifuge body 1 is prior art and will not be described in detail here. For example, the structure of the three-phase horizontal spiral centrifuge disclosed in Patent Publication No. CN211385420U; the separation guide block 2 is annular, the inner ring of which is in contact with the spiral conveying shaft 11 of the three-phase horizontal spiral centrifuge body 1, and the outer ring of which is detachably connected to the inner wall of the drum 12 of the three-phase horizontal spiral centrifuge body 1;

[0023] The separation guide block 2 is connected to one or more oil pumping pipe connection holes 21 for connecting to the oil pumping pipe 3, and the oil pumping pipe 3 is used for discharging light liquid;

[0024] A light liquid collecting groove 22 is formed on the separation guide block 2 near the spiral conveying shaft 11, and a light liquid collecting space is formed between the light liquid collecting groove 22 and the spiral conveying shaft 11. The light liquid collecting groove 22 is connected to the oil suction pipe connecting hole 21. When the oil suction pipe 3 is connected to the oil suction pipe connecting hole 21, the inner end of the oil suction pipe 3 is located in the light liquid collecting space; the light liquid formed by the three-phase horizontal spiral centrifuge body 1 is collected in the light liquid collecting space and discharged by the oil suction pipe 3.

[0025] Furthermore, more than one heavy liquid discharge channel 23 is formed on the separation guide block 2, and there are four heavy liquid discharge channels 23. The heavy liquid discharge channels 23 discharge the heavy liquid in the large end of the three-phase horizontal spiral centrifuge body 1 to the heavy liquid outlet of the three-phase horizontal spiral centrifuge body 1, and the heavy liquid is discharged from the heavy liquid outlet.

[0026] Specifically, if Figure 3 As shown, the heavy liquid discharge channel 23 includes a first horizontal through groove 231 arranged horizontally and a second oblique through groove 232 arranged obliquely. The first horizontal through groove 231 is connected to the second oblique through groove 232, and the first horizontal through groove 231 and the second oblique through groove 232 form the heavy liquid discharge channel 23; the first horizontal through groove 231 is close to the drum 12, which facilitates the heavy liquid to enter the heavy liquid discharge channel 23 and be discharged from the second oblique through groove 232 to the heavy liquid outlet of the three-phase horizontal spiral centrifuge body 1.

[0027] In one embodiment, if Figure 1-Figure 3 As shown, a boss 24 is formed on one side of the separation guide block 2 close to the large end of the three-phase horizontal spiral centrifuge body 1. The boss 24 cooperates with the three-phase horizontal spiral centrifuge body 1 to make the installation of the separation guide block 2 more stable.

[0028] In one embodiment, one or more sealing member connecting grooves 25 are provided on the outer wall of the separation guide block 2 . The sealing member connecting grooves 25 are used for connecting the sealing members to improve the sealing performance between the separation guide block 2 and the drum 12 .

[0029] In one embodiment, a connection groove 26 is formed on the outer end surface of the oil extraction pipe connection hole 21 to facilitate the installation of a connector for connecting the oil extraction pipe 3. The connection between the connector and the oil extraction pipe 3 is a prior art and will not be described in detail here.

[0030] In this embodiment, a separation guide block 2 is used to minimize the stirring effect of the oil extraction pipe 3 on the entire liquid phase. The light liquid can be smoothly discharged from the oil extraction pipe 3, and the heavy liquid is discharged through the four heavy liquid discharge channels 23 of the separation guide block 2, making the separation effect more stable and easy to achieve, and minimizing the mutual interference between the light and heavy liquid phases, thereby improving the separation efficiency of the light and heavy liquid phases of the three-phase horizontal spiral centrifuge. The traditional single oil extraction pipe structure has high strength requirements for the oil extraction pipe because the oil extraction pipe is stirred in the medium for a long time. The presence of the separation guide block also greatly extends the service life of the oil extraction pipe.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0032] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0033] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0034] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0035] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0036] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model in specific circumstances.

[0037] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A light and heavy liquid separation mechanism of a three-phase horizontal spiral centrifuge, characterized in that: It includes: A separation guide block connected to the large end of the three-phase horizontal spiral centrifuge body, wherein the separation guide block is annular, the inner ring of which is in contact with the spiral conveying shaft of the three-phase horizontal spiral centrifuge body, and the outer ring of which is detachably connected to the inner wall of the drum of the three-phase horizontal spiral centrifuge body; The separation guide block is connected with one or more oil pumping pipe connection holes for connecting with the oil pumping pipe; The separation guide block is formed with a light liquid collecting groove near the spiral conveying shaft, a light liquid collecting space is formed between the light liquid collecting groove and the spiral conveying shaft, and the light liquid collecting groove is connected to the oil pumping pipe connection hole; One or more heavy liquid discharge channels are formed on the separation guide block, and the heavy liquid discharge channels are communicated with the heavy liquid outlet of the three-phase horizontal spiral centrifuge body.

2. The light and heavy liquid separation mechanism of the three-phase horizontal spiral centrifuge according to claim 1, characterized in that: There are four heavy liquid discharge channels.

3. The light and heavy liquid separation mechanism of the three-phase horizontal spiral centrifuge according to claim 1, characterized in that: The heavy liquid discharge channel includes a first horizontal through groove and a second oblique through groove, and the first horizontal through groove is communicated with the second oblique through groove.

4. The light and heavy liquid separation mechanism of the three-phase horizontal spiral centrifuge according to claim 3, characterized in that: The first horizontal through slot is close to the rotating drum.

5. The light and heavy liquid separation mechanism of the three-phase horizontal spiral centrifuge according to claim 1, characterized in that: A boss is formed on one side of the separation guide block close to the large end of the three-phase horizontal spiral centrifuge body, and the boss is matched with the three-phase horizontal spiral centrifuge body.

6. The light and heavy liquid separation mechanism of the three-phase horizontal spiral centrifuge according to claim 1, characterized in that: One or more sealing member connecting grooves are provided on the outer wall of the separation guide block.

7. The light and heavy liquid separation mechanism of the three-phase horizontal spiral centrifuge according to claim 1, characterized in that: The outer end surface of the oil pumping pipe connecting hole forms a connecting groove.

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