A centrifugal separation device for methanol recovery
By designing a multi-chamber centrifuge and reflux pipe, precise solid-liquid-liquid separation in the methanol recovery process is achieved, solving the problems of low efficiency and inconvenient impurity handling in traditional centrifugal separation, and improving separation purity and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN TAOBO NEW MATERIALS CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional centrifugal separation technology struggles to achieve precise solid-liquid-liquid separation, failing to effectively separate methanol from other substances, thus impacting product quality and production efficiency. Furthermore, it lacks a secondary treatment structure for the mixture.
A multi-chamber centrifuge was designed, including a first, second, and third separation chamber, which are separated by partitions. A reflux pipe and a circulation pump are set up for secondary centrifugation. Combined with the gradual collection of solid impurities and high-speed centrifugation, precise solid-liquid-liquid separation is achieved.
It significantly improves the separation purity and efficiency of methanol recovery, simplifies the cleaning process of solid impurities, and reduces the difficulty and time cost of equipment maintenance.
Smart Images
Figure CN224308634U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of centrifugal separation equipment technology, and in particular to a centrifugal separation device for methanol recovery. Background Technology
[0002] In chemical production processes, methanol is a commonly used organic solvent and chemical raw material, widely applied in various fields. However, in actual production, methanol is often mixed with other substances, such as water, unreacted solid raw materials, and by-product particles, forming complex mixtures.
[0003] Traditional centrifugal separation technology struggles to achieve precise solid-liquid-liquid stratification and cannot effectively separate different substances based on the density differences between liquid and solid impurities. This results in poor separation of components in the mixed system, severely impacting subsequent product quality and production efficiency. Furthermore, traditional centrifuges lack dedicated collection and secondary processing structures for mixtures formed during the separation process caused by the contact of two liquids. Consequently, the different components in the mixture cannot be further separated and purified, making it difficult to meet the stringent purity requirements of industrial production.
[0004] Therefore, those skilled in the art urgently need to develop a centrifugal separation device for methanol recovery. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a centrifugal separation device for methanol recovery.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a centrifugal separation device for methanol recovery, comprising a centrifuge cylinder, wherein a first separation chamber, a second separation chamber and a third separation chamber are arranged sequentially from top to bottom on the inner side of the centrifuge cylinder, and the first separation chamber and the second separation chamber, and the second separation chamber and the third separation chamber are all separated by partitions;
[0007] The bottom of the third separation chamber is connected to the centrifuge cylinder, and the right side of the third separation chamber is connected to the discharge pipe of the third separation chamber; the bottom of the second separation chamber is connected to the inlet pipe of the second separation chamber, and the left side of the second separation chamber is connected to the discharge pipe of the second separation chamber.
[0008] The bottom of the first separation chamber is connected to the first separation chamber feed pipe, which is located inside the second separation chamber feed pipe, and the bottom of the first separation chamber feed pipe extends out of the second separation chamber feed pipe. The right side of the first separation chamber is connected to the first separation chamber discharge pipe.
[0009] A feeding pipe is connected through the side wall of the centrifuge cylinder. A reflux pipe is provided inside the feed pipe of the first separation chamber. The top end of the reflux pipe extends out of the centrifuge cylinder and is connected to the discharge pipe of the second separation chamber. A circulation pump is provided on the outer part of the reflux pipe.
[0010] The bottom of the centrifuge tube has an inverted conical structure, and the inner bottom of the centrifuge tube is equipped with a residue collection box and a centrifugal separation power assembly.
[0011] Preferably, the residue collection box is detachably connected to the centrifuge cylinder, and a collection box inlet is provided on one side of the residue collection box, while a collection box filter screen is provided on the other side of the residue collection box.
[0012] Preferably, the centrifugal separation power assembly includes a motor connected to the bottom of the outer side of the centrifuge drum, and the output end of the motor extends to the centrifuge drum and is connected to the turbine blade assembly.
[0013] Preferably, the return pipe is located directly above the turbine fan blade assembly, and the bottom of the return pipe extends out of the first separation chamber feed pipe.
[0014] Preferably, the feed pipe of the first separation chamber and the feed pipe of the second separation chamber are coaxial.
[0015] Preferably, the bottoms of the first separation chamber, the second separation chamber, and the third separation chamber all slope downwards in all directions.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] In this invention, centrifugal force is used to achieve precise solid-liquid-liquid separation. For the mixture generated by the contact of two liquids, a second separation chamber is set up to collect the mixture and centrifuge it again through a reflux pipe, which effectively reduces mixing and significantly improves separation purity and efficiency.
[0018] The centrifuge adopts a step-by-step strategy of first slowly rotating to collect solid impurities into the residue collection box, and then centrifuging at high speed to separate the liquid. This avoids solid interference with liquid separation and achieves complete solid-liquid separation and unified solid recovery. The centrifuge cylinder has a side door design, which facilitates the disassembly of the residue collection box, enabling rapid cleaning of solid impurities and reducing equipment maintenance difficulty and time costs. Attached Figure Description
[0019] Figure 1 This is a front structural sectional view of the present invention;
[0020] Figure 2 This is an enlarged view of the separation chamber described in this utility model;
[0021] Figure 3 This is a structural diagram of the residue collection box described in this utility model.
[0022] In the diagram: 1-Centrifuge cylinder; 2-First separation chamber; 21-First separation chamber discharge pipe; 22-First separation chamber inlet pipe; 3-Second separation chamber; 31-Second separation chamber discharge pipe; 32-Second separation chamber inlet pipe; 4-Third separation chamber; 41-Third separation chamber discharge pipe; 5-Return pipe; 6-Feeding pipe; 7-Motor; 8-Turbine fan blade assembly; 9-Residue collection box; 91-Collection box inlet; 92-Collection box filter screen. Detailed Implementation
[0023] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.
[0024] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0026] Please see Figures 1-3 This utility model provides an embodiment: a centrifugal separation device for methanol recovery, including a centrifuge cylinder 1, with a first separation chamber 2, a second separation chamber 3 and a third separation chamber 4 arranged sequentially from top to bottom on the inner side of the centrifuge cylinder 1, and the first separation chamber 2 and the second separation chamber 3, and the second separation chamber 3 and the third separation chamber 4 are all separated by partitions;
[0027] The bottom of the third separation chamber 4 is connected to the centrifuge cylinder 1, and the right side of the third separation chamber 4 is connected to the discharge pipe 41 of the third separation chamber; the bottom of the second separation chamber 3 is connected to the feed pipe 32 of the second separation chamber, and the left side of the second separation chamber 3 is connected to the discharge pipe 31 of the second separation chamber.
[0028] The bottom of the first separation chamber 2 is connected to the first separation chamber feed pipe 22, which is located inside the second separation chamber feed pipe 32, and the bottom of the first separation chamber feed pipe 22 extends out of the second separation chamber feed pipe 32. The right side of the first separation chamber 2 is connected to the first separation chamber discharge pipe 21.
[0029] A feeding pipe 6 is connected through the side wall of the centrifuge cylinder 1. A return pipe 5 is provided inside the feed pipe 22 of the first separation chamber. The top end of the return pipe 5 extends out of the centrifuge cylinder 1 and is connected to the discharge pipe 31 of the second separation chamber. A circulation pump is provided on the outer part of the return pipe 5.
[0030] The bottom of the centrifuge cylinder 1 has an inverted conical structure, and the inner bottom of the centrifuge cylinder 1 is equipped with a residue collection box 9 and a centrifugal separation power assembly.
[0031] The liquid to be separated enters the centrifuge cylinder 1 through the feed pipe 6. The centrifugal separation power component drives the liquid to move centrifugally. Liquids with higher density, such as water, are thrown to the outer wall of the centrifuge cylinder 1, while methanol with lower density is relatively concentrated in the central area inside the device. They flow out through the discharge pipe 41 of the third separation chamber and the discharge pipe 21 of the first separation chamber, respectively. The two liquids with different densities come into contact with each other, so there will be some mixing of the liquids. The mixed liquid flows into the second separation chamber 3 sandwiched in the middle, and re-enters the centrifuge cylinder 1 through the discharge pipe 31 of the second separation chamber and the return pipe 5 for secondary separation, thereby improving the separation efficiency.
[0032] The liquid to be separated also contains impurities such as unreacted solid raw materials and by-product particles, which settle at the bottom during centrifugation. It is first rotated slowly and then collected uniformly through the residue collection box 9. After that, it is centrifuged at high speed to separate the liquid, thereby achieving solid-liquid-liquid separation.
[0033] The return pipe 5 is located directly above the turbine blade assembly 8, and the bottom of the return pipe 5 extends out to the feed pipe 22 of the first separation chamber. This facilitates the direct flow of the returned liquid onto the turbine blade assembly 8 for separation.
[0034] Furthermore, the residue collection box 9 is detachably connected to the centrifuge cylinder 1. One side of the residue collection box 9 is provided with a collection box inlet 91, and the other side of the residue collection box 9 is provided with a collection box filter screen 92.
[0035] A rotatable door is connected to the side wall of centrifuge cylinder 1. By opening the door, the residue collection box 9 can be removed, and solid impurities such as unreacted solid raw materials and by-product particles can be collected uniformly. This facilitates the disassembly of the residue collection box, enabling rapid cleaning of solid impurities and reducing equipment maintenance difficulty and time costs.
[0036] Furthermore, the centrifugal separation power assembly includes a motor 7 connected to the bottom of the outer side of the centrifuge cylinder 1. The output end of the motor 7 extends to the centrifuge cylinder 1 and is connected to the turbine fan blade assembly 8. The turbine fan blade assembly 8 adopts a double-layer structure with a smaller upper layer and a larger lower layer. A liquid dispensing disc can be connected to the upper part of the turbine fan blade assembly 8. This structure is prior art and has been disclosed in application publication number CN112755588A, so it will not be described again.
[0037] Furthermore, the feed pipe 22 of the first separation chamber and the feed pipe 32 of the second separation chamber are coaxial, which further improves the separation efficiency.
[0038] Furthermore, the bottoms of the first separation chamber 2, the second separation chamber 3, and the third separation chamber 4 all slope downwards in all directions, and the inclined structure facilitates the discharge of the separated liquid through the discharge pipe.
[0039] The working principle of this utility model is as follows: When this utility model is in use, the liquids flow out from the first separation chamber 2, the second separation chamber 3 and the third separation chamber 4 respectively after centrifugation according to their different densities, while the mixed liquids mixed in the middle are centrifuged again through the return pipe 5; the solid particles and impurities inside are uniformly recovered through the residue collection box 9.
[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A centrifugal separation device for methanol recovery, comprising a centrifuge cylinder (1), characterized in that: The centrifuge tube (1) has a first separation chamber (2), a second separation chamber (3) and a third separation chamber (4) arranged from top to bottom on the inner side. The first separation chamber (2) and the second separation chamber (3), as well as the second separation chamber (3) and the third separation chamber (4), are separated by partitions. The bottom of the third separation chamber (4) is connected to the centrifuge cylinder (1), and the right side of the third separation chamber (4) is connected to the discharge pipe (41) of the third separation chamber; the bottom of the second separation chamber (3) is connected to the feed pipe (32) of the second separation chamber, and the left side of the second separation chamber (3) is connected to the discharge pipe (31) of the second separation chamber. The bottom of the first separation chamber (2) is connected to the first separation chamber feed pipe (22), the first separation chamber feed pipe (22) is located inside the second separation chamber feed pipe (32), and the bottom of the first separation chamber feed pipe (22) extends out of the second separation chamber feed pipe (32). The right side of the first separation chamber (2) is connected to the first separation chamber discharge pipe (21). The centrifuge tube (1) is connected to the side wall by a feeding pipe (6). The first separation chamber feed pipe (22) is provided with a return pipe (5). The top end of the return pipe (5) extends out of the centrifuge tube (1) and is connected to the second separation chamber discharge pipe (31). A circulation pump is provided on the outer part of the return pipe (5). The bottom of the centrifuge tube (1) is an inverted cone-shaped structure, and the inner bottom of the centrifuge tube (1) is provided with a residue collection box (9) and a centrifugal separation power assembly.
2. The centrifugal separation device for methanol recovery according to claim 1, characterized in that: The residue collection box (9) is detachably connected to the centrifuge cylinder (1). The residue collection box (9) has a collection box inlet (91) on one side and a collection box filter screen (92) on the other side.
3. The centrifugal separation device for methanol recovery according to claim 1, characterized in that: The centrifugal separation power assembly includes a motor (7) connected to the bottom of the outer side of the centrifugal cylinder (1), the output end of which extends to the centrifugal cylinder (1) and is connected to the turbine fan blade assembly (8).
4. A centrifugal separation device for methanol recovery according to claim 3, characterized in that: The return pipe (5) is located directly above the turbine fan blade assembly (8), and the bottom of the return pipe (5) extends out of the first separation chamber feed pipe (22).
5. A centrifugal separation device for methanol recovery according to claim 1, characterized in that: The first separation chamber feed pipe (22) and the second separation chamber feed pipe (32) are coaxial.
6. A centrifugal separation device for methanol recovery according to claim 1, characterized in that: The bottoms of the first separation chamber (2), the second separation chamber (3) and the third separation chamber (4) all slope downwards in all directions.