Centrifugal machine
By using a pressure-down component to discharge gas in the separation chamber of the centrifuge, negative pressure in the separation chamber is achieved, which solves the problem that water vapor in the separation chamber affects the separation quality, and improves the dryness of the solid-phase material and the overall separation effect of the centrifuge.
Patent Information
- Application Number
- CN202421082711.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-17
AI Technical Summary
During the separation process of the centrifuge, the separation chamber is filled with a large amount of saturated water vapor, resulting in the pressure in the separation chamber is higher than the discharge chamber, and some of the water vapor enters the discharge chamber, affecting the moisture content of the solid phase material and the separation quality of the centrifuge.
The pressure reduction component is used to discharge gas in the separation chamber, so that the inside of the separation chamber is in a negative pressure state, which is lower than the pressure value inside the discharge chamber, thereby preventing water vapor from entering the discharge chamber, and at the same time, causing water vapor in the discharge chamber to enter the separation chamber. Improve separation quality.
By reducing the pressure in the separation chamber, water vapor in the separation chamber is prevented from entering the discharge chamber, and the dryness of the solid phase material and the separation quality of the centrifuge are improved.
Smart Images
Figure CN222306088U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of solid-liquid separation, in particular to a centrifuge. Background Art
[0002] A centrifuge is a mechanical device that uses centrifugal force to separate liquid from solid particles or components in a mixture of liquid and liquid.
[0003] Specifically, the centrifuge includes a shell, a drum and a pusher, wherein the shell is provided with a liquid outlet; the drum is arranged inside the shell and can rotate around its own axis; the pusher is arranged inside the drum and can move along the axial direction of the drum to push the solid-liquid mixture to be separated inside the drum to move; in actual application, the solid-liquid mixture to be separated is placed inside the drum, and the drum is controlled to rotate around its own axis. During the rotation process, the solid-liquid mixture is pushed by the pusher to move from one end of the drum to the other end, and under the action of centrifugal force, the liquid phase material and the solid phase material in the solid-liquid mixture can be separated, and then the liquid phase material enters the separation chamber, and the solid phase material moves to the discharge chamber.
[0004] However, in this process, since the separation chamber is filled with a large amount of saturated water vapor, the pressure in the separation chamber is higher than that in the discharge chamber. Part of the water vapor enters the discharge chamber, thereby affecting the moisture content of the solid phase material and further affecting the separation quality of the centrifuge.
[0005] Therefore, the above problems need to be solved urgently. Utility Model Content
[0006] The utility model aims to provide a centrifuge to improve the separation quality during the centrifugal process.
[0007] To achieve this purpose, the utility model adopts the following technical solutions:
[0008] A centrifuge, comprising:
[0009] A shell body, wherein a liquid outlet is provided on the shell body;
[0010] A rotary drum, which is arranged inside the shell to form a separation chamber between the rotary drum and the shell, and the rotary drum can rotate around its own axis;
[0011] A pusher, which is disposed inside the drum and can move along the axial direction of the drum to push the solid-liquid mixture to be separated inside the drum to move from one end of the drum to a discharge cavity connected to the other end of the drum;
[0012] The centrifuge also includes:
[0013] A pressure reducing component is arranged inside the separation chamber and is configured to discharge the gas inside the separation chamber from the liquid outlet, so that the inside of the separation chamber is in a negative pressure state, so that the pressure value inside the separation chamber is lower than the pressure value inside the discharge chamber.
[0014] Preferably, the pressure reducing assembly comprises fan blades evenly distributed along the outer peripheral wall of the drum.
[0015] Preferably, the centrifuge further comprises two baffles arranged at intervals, both of which are arranged on the inner circumferential wall of the shell, and gaps are arranged between the ends of the two baffles and the outer circumferential wall of the drum, the two baffles and the drum can separate the interior of the shell into a separation chamber and a discharge chamber, the separation chamber is connected to the interior of the drum through the separation holes on the outer circumferential wall of the drum, and the discharge chamber is connected to the interior of the drum through the opening at the end of the drum.
[0016] Preferably, the centrifuge further comprises a lining mesh and a plate mesh, the lining mesh is clamped between the plate mesh and the inner wall of the drum, and the plate mesh and the drum are detachably connected.
[0017] Preferably, the mesh number of the lining mesh is greater than the mesh number of the plate mesh.
[0018] Preferably, the two ends of the drum are provided with step surfaces, and the two ends of the plate net are provided with bending parts adapted to the step surfaces;
[0019] The centrifuge further comprises a pressing ring, which is detachably connected to the end of the drum and is configured to push the bent portion toward the step surface.
[0020] Preferably, the pressing ring comprises:
[0021] A connecting portion, to which the pressure reducing assembly is detachably connected;
[0022] The abutment portion, the connection portion is vertically connected to the abutment portion, the abutment portion is detachably connected to the end of the drum, and the abutment portion abuts against the bending portion.
[0023] Preferably, the centrifuge further comprises a labyrinth ring, which is detachably connected to one end of the baffle adjacent to the drum.
[0024] Preferably, the centrifuge further comprises a guide ring, which is arranged at an opening of the labyrinth ring adjacent to the separation chamber, and an angle between the labyrinth ring and the baffle is an acute angle.
[0025] Preferably, the centrifuge further comprises a liquid baffle, which is arranged on a side wall of the baffle adjacent to the separation chamber, and an angle between the liquid baffle and the baffle is an acute angle.
[0026] Beneficial effects of the utility model:
[0027] In the centrifuge proposed by the utility model, during the separation process, the liquid phase material in the solid-liquid mixture can enter the separation chamber through the separation holes on the drum, and then the solid phase material can move to the discharge chamber under the action of the pusher. In this process, the pressure reduction component discharges the gas inside the separation chamber from the liquid outlet, so that the pressure value inside the separation chamber is lower than the pressure value inside the discharge chamber, so as to prevent the saturated water vapor in the separation chamber from entering the discharge chamber and at the same time promote the water vapor in the discharge chamber to enter the separation chamber, thereby improving the separation quality of the centrifuge. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a schematic diagram of the connection structure of the housing, the drum and the pressure ring proposed in the embodiment of the utility model;
[0029] Figure 2 for Figure 1 A partial enlarged view of the middle part;
[0030] Figure 3 It is a structural schematic diagram of the pressing ring proposed in the embodiment of the utility model.
[0031] In the figure:
[0032] 1. Shell; 11. Separation chamber; 12. Discharge chamber; 13. Liquid outlet;
[0033] 2. Rotating drum;
[0034] 3. Voltage reducing assembly; 31. Fan blade;
[0035] 4. Baffle; 5. Lining net; 6. Plate net;
[0036] 7. Pressing ring; 71. Connecting portion; 72. Abutting portion;
[0037] 8. Labyrinth ring; 9. Guide ring; 10. Liquid baffle plate. DETAILED DESCRIPTION
[0038] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.
[0039] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.
[0040] In the present application, the term "and / or" is a description of the association relationship of associated objects, indicating that three relationships may exist. For example, a centrifugal vortex magnetic pump and / or a centrifugal vortex magnetic pump can represent: the existence of a centrifugal vortex magnetic pump alone, the existence of a centrifugal vortex magnetic pump and a centrifugal vortex magnetic pump at the same time, and the existence of a centrifugal vortex magnetic pump alone. In addition, the character " / " in the present application generally indicates that the objects associated before and after are in an "and / or" relationship.
[0041] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.
[0042] In the present application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values that do not use relative terms should also be disclosed as specific values with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).
[0043] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.
[0044] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.
[0045] See also Figures 1 to 3 In this embodiment, a centrifuge is proposed, which includes a shell 1, a drum 2, and a pusher. The shell 1 is provided with a liquid outlet 13; the drum 3 is arranged inside the shell 1 to form a separation chamber 11 between the drum 2 and the shell 1, and the drum 2 can rotate around its own axis; the pusher is arranged inside the drum 2 and can move along the axial direction of the drum 2 to push the solid-liquid mixture to be separated inside the drum 2 from one end of the drum 2 to the discharge chamber 12 connected to the other end of the drum 2.
[0046] In practical applications, the solid-liquid mixture to be separated is placed inside the drum 2, and the drum 2 is controlled to rotate around its own axis. During the rotation process, the solid-liquid mixture is pushed from one end of the drum 2 to the other end by the pusher, and under the action of centrifugal force, the liquid phase material in the solid-liquid mixture can be separated from the solid phase material of the solid-liquid mixture, and the liquid phase material enters the separation chamber 11, and the solid phase material moves to the discharge chamber 12. However, in this process, since the separation chamber 11 is filled with a large amount of saturated water vapor, the pressure in the separation chamber 11 is higher than that in the discharge chamber 12, and part of the water vapor enters the discharge chamber 12, thereby affecting the dryness of the solid phase material, and then affecting the separation quality of the centrifuge. To this end, in this embodiment, by reducing the pressure value in the separation chamber 11, the water vapor in the discharge chamber 12 can enter the separation chamber 11 to improve the dryness of the solid phase material.
[0047] Specifically, the centrifuge also includes a pressure reduction component 3, which is disposed inside the separation chamber 11 and is configured to discharge the gas inside the separation chamber 11 from the liquid outlet 13 so that the pressure value inside the separation chamber 11 is lower than the pressure value inside the discharge chamber 12.
[0048] It is understandable that during the separation process, the liquid phase material in the solid-liquid mixture can enter the separation chamber 11 through the separation holes on the drum 2, and then the solid phase material can move to the discharge chamber 12 under the action of the pusher. In this process, the pressure reduction component 3 discharges the gas inside the separation chamber 11 from the liquid outlet 13, so that the pressure value inside the separation chamber 11 is lower than the pressure value inside the discharge chamber 12, so as to avoid the saturated water vapor in the separation chamber 11 from entering the discharge chamber 12, and at the same time, it can also promote the water vapor in the discharge chamber 12 to enter the separation chamber 11, thereby improving the separation quality of the centrifuge. It should be noted that the pusher is preferably an internal spiral component or a continuous spiral blade in the prior art, which will not be described in detail here.
[0049] Furthermore, the pressure reduction assembly 3 includes blades 31 evenly distributed along the outer peripheral wall of the drum 2. It is understandable that when the drum 2 rotates, the blades 31 can rotate accordingly, so that the side of the separation chamber 11 can become a low-pressure area, and the side of the discharge chamber 12 can become a high-pressure area, so that while preventing the saturated water vapor in the separation chamber 11 from entering the discharge chamber 12, it can also promote the water vapor in the discharge chamber 12 to enter the separation chamber 11, thereby improving the separation quality of the centrifuge.
[0050] It should be noted that the fan blades 31 are existing technical means, so they are not described in detail here. In addition, the number of the fan blades 31 is preferably six. In some other feasible embodiments, the number of the fan blades 31 is determined according to the actual working conditions and is not specifically limited here.
[0051] In particular, the fan blade 31 is arranged opposite to the gap adjacent to the discharge chamber 12. In this way, when the fan blade 31 rotates with the drum 2, it can further promote the water vapor in the discharge chamber 12 to enter the separation chamber 11, so as to improve the separation quality of the centrifuge.
[0052] In some other feasible embodiments, the pressure reducing component 3 can be an air pump, the air pumping port of the air pump is connected to the separation chamber 11, and the air pump starts to work during the rotation of the drum 2 to extract the air inside the separation chamber 11, so that the pressure value inside the separation chamber 11 is lower than the pressure value inside the discharge chamber 12. In this embodiment, the centrifuge also includes two baffles 4 arranged at intervals, the two baffles 4 are both arranged on the inner peripheral wall of the shell 1, and gaps are arranged between the ends of the two baffles 4 and the outer peripheral wall of the drum 2. The two baffles 4 and the drum 2 can separate the interior of the shell 1 into the separation chamber 11 and the discharge chamber 12. The separation chamber 11 is connected to the interior of the drum 2 through the separation holes on the outer peripheral wall of the drum 2, and the discharge chamber 12 is connected to the interior of the drum 2 through the opening at the end of the drum 2. It can be understood that the spacing between the two baffles 4 is equal to the axial length of the main drum 2, and the axial length of the drum 2 is less than the axial length of the shell 1, and under the action of the baffle 4, the interior of the shell 1 can be divided into a separation chamber 11 and a discharge chamber 12, thereby reducing the axial length of the entire centrifuge, thereby reducing the floor space of the centrifuge and reducing production costs.
[0053] In order to improve the applicability of the centrifuge, that is, to be able to separate different types of solid-liquid mixtures, in this embodiment, the centrifuge further includes a lining mesh 5 and a plate mesh 6, the lining mesh 5 is clamped between the plate mesh 6 and the inner wall of the drum 2, and the plate mesh 6 and the drum 2 are detachably connected. It can be understood that for different types of solid-liquid mixtures to be separated, the operator can further improve the separation quality of the centrifuge by selecting the lining mesh 5 and the plate mesh 6 with the density or particle size of the liquid phase material. In actual application, the lining mesh 5 is fitted with the inner wall of the drum 2, and then the plate mesh 6 is connected to the drum 2, so as to complete the clamping of the lining mesh 5.
[0054] Furthermore, the mesh number of the lining mesh 5 is greater than the mesh number of the plate mesh 6. Such an arrangement facilitates double separation of the materials to be separated, so as to further improve the separation quality.
[0055] Specifically, the two ends of the drum 2 are provided with step surfaces, and the two ends of the plate net 6 are provided with bent portions adapted to the step surfaces; the centrifuge further comprises a pressing ring 7, which is detachably connected to the end of the drum 2, and the pressing ring 7 is configured to push the bent portion toward the step surface. It can be understood that under the action of the pressing ring 7, the two ends of the plate net 6 can be kept in contact with the drum 2 to avoid axial movement of the plate net 6 during the separation process, thereby further ensuring the separation quality.
[0056] In particular, the pressure ring 7 includes a connecting portion 71 and an abutting portion 72, and the pressure reducing assembly 3 is detachably connected to the connecting portion 71; the connecting portion 71 is vertically connected to the abutting portion 72, the abutting portion 72 is detachably connected to the end of the drum 2, and the abutting portion 72 abuts against the bent portion. It can be understood that the abutting portion 72 abuts against the end of the drum 2, and the connecting portion 71 abuts against the outer peripheral wall of the drum 2. Such an arrangement can further reduce the axial length of the centrifuge. It should be noted that the abutting portion 72 is connected to the drum 2 by bolts, and the connecting portion 71 is connected to the pressure reducing assembly 3 by bolts, that is, the connecting portion 71 is connected to the fan blade 31 by bolts.
[0057] In this embodiment, the centrifuge also includes a labyrinth ring 8, which is disposed at one end of the baffle 4 adjacent to the drum 2 and is detachably connected to the labyrinth ring 8. It is understandable that the multiple outlets of the labyrinth ring 8 can be used to separate substances of different densities or particle sizes. Under the action of centrifugal force, substances will separate along different paths and flow out of different outlets. Therefore, the provided labyrinth ring 8 can further prevent the water vapor inside the separation chamber 11 from entering the inside of the discharge chamber 12, thereby further improving the separation quality. It should be noted that when selecting the labyrinth ring 8, it is necessary to ensure that the area at the outlet of the labyrinth ring 8 is smaller than the density or particle size of the liquid phase material.
[0058] Furthermore, the centrifuge also includes a guide ring 9 and a liquid baffle 10. The guide ring 9 is arranged at the opening of the labyrinth ring 8 adjacent to the separation chamber 11, and the angle between the labyrinth ring 8 and the baffle 4 is an acute angle. The liquid baffle 10 is arranged on the side wall of the baffle 4 adjacent to the separation chamber 11, and the angle between the liquid baffle 10 and the baffle 4 is an acute angle. It can be understood that the arrangement of the guide ring 9 and the liquid baffle 10 can guide the airflow formed by the rotation of the fan blade 31 to flow into the separation chamber 11, so that the liquid and saturated water vapor in the separation chamber 11 no longer leak into the discharge chamber 12 through the labyrinth.
[0059] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.
Claims
1. A centrifuge comprising: A housing (1), wherein the housing (1) is provided with a liquid outlet (13); A rotary drum (2), the rotary drum (2) being arranged inside the shell (1) so as to form a separation chamber (11) between the rotary drum (2) and the shell (1), and the rotary drum (2) being capable of rotating around its own axis, and one end of the rotary drum (2) being connected to a discharge chamber (12); a pushing member, the pushing member being arranged inside the rotary drum (2) and being able to move along the axial direction of the rotary drum (2) so as to push the solid-liquid mixture to be separated inside the rotary drum (2) to move from one end of the rotary drum (2) to the discharge cavity (12); Characterized in that the centrifuge also includes: A pressure reducing component (3), wherein the pressure reducing component (3) is arranged inside the separation chamber (11) and is configured to discharge the gas inside the separation chamber (11) through the liquid outlet (13) so that the pressure value inside the separation chamber (11) is lower than the pressure value inside the discharge chamber (12).
2. The centrifuge according to claim 1, characterized in that The pressure reduction component (3) comprises fan blades (31) evenly distributed along the outer peripheral wall of the rotating drum (2).
3. The centrifuge according to claim 1, characterized in that The centrifuge further comprises a lining net (5) and a plate net (6), wherein the lining net (5) is clamped between the plate net (6) and the inner wall of the drum (2), and the plate net (6) and the drum (2) are detachably connected.
4. The centrifuge according to claim 3, characterized in that The mesh number of the lining mesh (5) is greater than the mesh number of the plate mesh (6).
5. The centrifuge according to claim 3, characterized in that Both ends of the rotating drum (2) are provided with step surfaces, and both ends of the plate net (6) are provided with bending portions adapted to the step surfaces; The centrifuge further comprises a pressing ring (7), which is detachably connected to the end of the drum (2), and the pressing ring (7) is configured to push the bent portion toward the step surface.
6. The centrifuge according to claim 5, characterized in that The pressing ring (7) comprises: A connecting portion (71), the pressure reducing assembly (3) being detachably connected to the connecting portion (71); The abutment portion (72) is vertically connected to the connection portion (71), the abutment portion (72) is detachably connected to the end of the rotating drum (2), and the abutment portion (72) abuts against the bending portion.
7. The centrifuge according to claim 1, characterized in that The centrifuge further comprises two baffles (4) arranged at intervals, the two baffles (4) being arranged on the inner peripheral wall of the shell (1), and gaps being arranged between the ends of the two baffles (4) and the outer peripheral wall of the drum (2), the two baffles (4) and the drum (2) dividing the interior of the shell (1) into a separation chamber (11) and a discharge chamber (12), the separation chamber (11) being connected to the interior of the drum (2) through a separation hole on the outer peripheral wall of the drum (2), and the discharge chamber (12) being connected to the interior of the drum (2) through an opening at the end of the drum (2).
8. The centrifuge according to claim 7, characterized in that The centrifuge further comprises a labyrinth ring (8), which is detachably connected to one end of the baffle (4) adjacent to the drum (2).
9. The centrifuge according to claim 8, characterized in that The centrifuge further comprises a guide ring (9), wherein the guide ring (9) is arranged at an opening of the labyrinth ring (8) adjacent to the separation chamber (11), and an angle between the labyrinth ring (8) and the baffle (4) is an acute angle.
10. The centrifuge according to claim 8, characterized in that The centrifuge further comprises a liquid baffle (10), wherein the liquid baffle (10) is arranged on a side wall of the baffle (4) adjacent to the separation chamber (11), and the angle between the liquid baffle (10) and the baffle (4) is an acute angle.