A gas-solid two-phase entrainment separation structure

Abstract

The application discloses a gas-solid two-phase entrainment separation structure, which comprises a separation cylinder, a lower end plate arranged at the bottom of the separation cylinder, and a rotating shaft rotatably arranged in the separation cylinder. A spiral wing is arranged on the outer circumferential surface of the rotating shaft. A rotating drive is arranged at the top of the separation cylinder and connected with the rotating shaft. An exhaust pipe is arranged at the top of the separation cylinder. Solid vapor is condensed in the separation cylinder, so that solid particles are condensed on the spiral wing of the rotating shaft, and other gases flow along the separation cylinder to the exhaust pipe. The rotating drive drives the spiral wing to rotate forward or reversely, so that the solid particles condensed on the spiral wing are thrown back into the reaction kettle. The above steps can effectively complete the gas-solid separation, and the safety risk in the purification process is reduced. In addition, the separation cylinder hardly needs to be disassembled and cleaned, and the leakage of toxic and harmful gases in the separation cylinder is avoided.

Description

Technical Field

[0001] This application relates to the field of gas-solid separation technology, and in particular to a gas-solid two-phase entrainment separation structure. Background Technology

[0002] In the purification process of easily sublimable chemical products such as camphor, naphthalene, and iodine, the gas discharged from the purification reactor contains vapors of camphor, naphthalene, and iodine. These vapors need to be separated from other gases, so a gas-solid two-phase entrainment separation structure is required.

[0003] In existing technologies, cylindrical filters with added filter bags are often used as the separation structure. Camphor, naphthalene, iodine, and other vapors condense into solids inside the cylindrical filter and are intercepted by the filter and filter bag, while the gas can pass through and be discharged, thus completing gas-solid separation. However, cylindrical filters and filter bags are prone to clogging, leading to increased internal pressure and increased safety hazards.

[0004] Therefore, it is necessary to propose a gas-solid two-phase entrainment separation structure to reduce safety hazards, which has become an important technical problem that urgently needs to be solved. Utility Model Content

[0005] This application provides a gas-solid two-phase entrainment separation structure, which aims to solve the problem that existing cylindrical filters and filter bags are prone to clogging, leading to increased internal pressure and increased safety hazards.

[0006] To achieve the above objectives, this application proposes a gas-solid two-phase entrainment separation structure, including a separation cylinder with a lower end plate at its bottom, the separation cylinder being fixed to a reaction vessel via the lower end plate, and further including: a rotating shaft rotatably disposed inside the separation cylinder; helical blades disposed on the outer circumferential surface of the rotating shaft; a rotation drive disposed on the top of the separation cylinder and connected to the rotating shaft; and an exhaust pipe disposed on the top of the separation cylinder.

[0007] In some embodiments, the device further includes a bottom bearing, wherein the bottom bearing is disposed on the lower end plate, and the rotating shaft is rotatably disposed on the bottom bearing.

[0008] In some embodiments, the lower end plate includes: an outer ring portion; a plurality of first connecting holes, the outer ring portion having a plurality of first connecting holes spaced apart circumferentially along its upper edge; a connecting arm, the inner side of the outer ring portion having a plurality of connecting arms spaced apart circumferentially along its inner edge; an inner ring portion, one end of the connecting arm being connected to the outer ring portion and the other end of the connecting arm being connected to the inner ring portion; and a plurality of second connecting holes, the inner ring portion having a plurality of second connecting holes spaced apart circumferentially along its upper edge, the bottom bearing being mounted to the inner ring portion through the second connecting holes.

[0009] In some embodiments, it further includes: an upper end plate, wherein the upper end plate is disposed on the top of the separation cylinder, and the rotation drive is mounted on the upper end plate.

[0010] In some embodiments, the device further includes: a mounting plate connected to an upper end plate, a rotary drive mounted on the mounting plate; an output shaft, the rotary drive providing an output shaft; and a coupling, the output shaft being connected to a rotating shaft via the coupling.

[0011] This application proposes a gas-solid two-phase entrainment separation structure, including a separation cylinder with a lower end plate at its bottom, which is fixed to a reaction vessel. The structure also includes: a rotating shaft rotatably mounted inside the separation cylinder; spiral blades on the outer circumference of the rotating shaft; a rotary drive connected to the rotating shaft and mounted at the top of the separation cylinder; and an exhaust pipe at the top of the separation cylinder. The gas flow generated in the reaction vessel enters the separation cylinder, where solid vapor condenses, causing solid particles to condense on the spiral blades of the rotating shaft. Other gases flow along the separation cylinder to the exhaust pipe and are eventually discharged. During this gas-solid separation process, the rotary drive can be periodically activated, causing the rotating shaft to rotate clockwise or counterclockwise, thereby causing the spiral blades to rotate clockwise or counterclockwise, throwing the condensed solid particles back into the reaction vessel. This process effectively achieves gas-solid separation without causing blockages, reducing safety risks during the purification process. Furthermore, the separator almost never needs to be disassembled for cleaning; it can be automatically cleaned by reversing the direction of rotation, thus preventing solid particles from coming into contact with the natural environment and preventing the leakage of toxic and harmful gases from the separator. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a three-dimensional structural schematic diagram of a gas-solid two-phase entrainment and separation structure in one embodiment of this application; Figure 2 This is a bottom view of a gas-solid two-phase entrainment and separation structure in one embodiment of this application; Figure 3 for Figure 2 Sectional view of section AA; Figure 4 This is a three-dimensional structural diagram of a gas-solid two-phase entrainment separation structure after removing the separation cylinder in one embodiment of this application.

[0013] The components include: a separator 1, an upper end plate 2, a mounting plate 3, a coupling 4, a rotary drive 5, a lower end plate 6, an outer ring 61, a first connecting hole 62, an inner ring 63, a second connecting hole 64, a connecting arm 65, a bottom bearing 7, a connector 8, a rotating shaft 9, a spiral vane 10, an exhaust pipe 11, and a top bearing 12. Detailed Implementation

[0014] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0015] See Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this application proposes a gas-solid two-phase entrainment separation structure, including a separation cylinder 1, with a lower end plate 6 at the bottom of the separation cylinder 1, and the separation cylinder 1 is fixed to the reaction vessel by the lower end plate 6. It also includes: a rotating shaft 9, which is rotatably disposed inside the separation cylinder 1; a spiral vane 10, with a spiral vane 10 disposed on the outer circumferential surface of the rotating shaft 9; a rotation drive 5, which is disposed on the top of the separation cylinder 1 and connected to the rotating shaft 9; and an exhaust pipe 11, which is disposed on the top of the separation cylinder 1.

[0016] Separator 1 is the foundation of the separation structure, and all other structures on the separation structure are directly or indirectly installed on separator 1. The purification process of the chemical product is carried out in a reactor. The gas flow generated in the reactor enters separator 1.

[0017] In this process, the solid vapor in the gas flow into the separation cylinder 1 condenses, causing solid particles to condense on the spiral vanes 10 of the rotating shaft 9. Other gases flow along the separation cylinder 1 to the exhaust pipe 11 and are eventually discharged from the exhaust pipe 11. During this gas-solid separation process, the rotary drive 5 can be periodically activated. The rotary drive 5 drives the rotating shaft 9 to rotate clockwise or counterclockwise, thereby driving the spiral vanes 10 to rotate clockwise or counterclockwise, throwing the solid particles condensed on the spiral vanes 10 back into the reactor.

[0018] It is understandable that the gas-solid separation is achieved by effectively separating solid particles in the airflow through the separation cylinder 1. The gas discharged from the exhaust pipe 11 can be further separated into gas and solid to ensure that the solid particles can be completely removed. There are a variety of gas-solid separation structures in the prior art, and any one of them can be selected.

[0019] Preferably, the outer contour generatrix of the rotating rotor blade 10 is in contact with the inner wall of the separation cylinder 1.

[0020] Specifically, the gas flow generated inside the reactor enters the separation cylinder 1, where solid vapor condenses, causing solid particles to condense on the spiral vanes 10 of the rotating shaft 9. Other gases flow along the separation cylinder 1 to the exhaust pipe 11 and are ultimately discharged from there. During this gas-solid separation process, the rotary drive 5 can be periodically activated. The rotary drive 5 drives the rotating shaft 9 to rotate forward or backward, thereby causing the spiral vanes 10 to rotate forward or backward, throwing the condensed solid particles on the spiral vanes 10 back into the reactor. This process effectively completes gas-solid separation without the risk of blockage, reducing safety risks during purification. Furthermore, the separation cylinder 1 requires minimal disassembly for cleaning; automatic cleaning via forward and reverse rotation prevents solid particles from contacting the natural environment and avoids leakage of toxic or harmful gases from the separation cylinder 1.

[0021] See Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, it further includes: a bottom bearing 7, which is disposed on the lower end plate 6, and the rotating shaft 9 is rotatably disposed on the bottom bearing 7. The bottom end of the rotating shaft 9 is rotatably disposed on the bottom bearing 7 to effectively support the rotating shaft 9 and improve the stability of the rotation of the rotating shaft 9.

[0022] See Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the lower end plate 6 includes: an outer ring portion 61, which is integrally formed with the separation cylinder 1; a plurality of first connecting holes 62, which are spaced apart circumferentially on the outer ring portion 61; the outer ring portion 61 and the first connecting holes 62 are used to form a connection with the reactor, specifically, the outer ring portion 61 is connected to the reactor by bolts, lock nuts and the first connecting holes 62. A connecting arm 65, which is spaced apart circumferentially on the inner side of the outer ring portion 61; an inner ring portion 63, where one end of the connecting arm 65 is connected to the outer ring portion 61 and the other end is connected to the inner ring portion 63; the connecting arm 65, the inner ring portion 63 and the outer ring portion 61 are all integrally formed, and a gap is provided between adjacent connecting arms 65 for airflow to pass through, allowing airflow to enter the separation cylinder 1 through the gap. A plurality of second connecting holes 64, which are spaced apart circumferentially on the inner ring portion 63, through which the bottom bearing 7 is installed onto the inner ring portion 63. The bottom bearing 7 is installed onto the inner ring 63 by bolts and lock nuts.

[0023] See Figure 1 , Figure 3 and Figure 4As shown, in some embodiments, it further includes: an upper end plate 2, with the upper end plate 2 disposed on the top of the separating cylinder 1, and the rotary drive 5 mounted on the upper end plate 2. It also includes: a mounting plate 3, connected to the upper end plate 2, with the rotary drive 5 mounted on the mounting plate 3; an output shaft, with the rotary drive 5 having an output shaft; and a coupling 4, with the output shaft connected to the rotating shaft 9 via the coupling 4. The upper end plate 2 and the separating cylinder 1 are formed together, and both the upper end plate 2 and the mounting plate 3 are provided with a third connecting hole. The mounting plate 3 is mounted to the upper end plate 2 by bolts, lock nuts, etc. The rotary drive 5 is a motor. The rotary drive 5 is mature prior art and is not the inventive point of this application; therefore, the specific structure of the rotary drive 5 is not limited here.

[0024] In this embodiment, a cavity is provided in the middle of the rotating shaft 9 to reduce its weight. Both ends of the rotating shaft 9 are interference-fitted with connectors 8. By heating the rotating shaft 9 or freezing the connectors 8, the connectors 8 are snapped into the two ends of the rotating shaft 9 to achieve a reliable snap-fit ​​between the connectors 8 and the rotating shaft 9. One connector 8 at one end of the rotating shaft 9 is rotatably connected to the bottom bearing 7, and the connector 8 at the other end of the rotating shaft 9 is connected to the output shaft through a coupling 4. The connector 8 at the other end of the rotating shaft 9 is rotatably connected to the mounting plate 3 through a top bearing 12.

[0025] The above description is only a part or preferred embodiment of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A gas-solid two-phase entrainment separation structure, comprising a separation cylinder (1), wherein a lower end plate (6) is provided at the bottom of the separation cylinder (1), and the separation cylinder (1) is fixed to a reaction vessel via the lower end plate (6), characterized in that, Also includes: A rotating shaft (9) is rotatably disposed inside the separation cylinder (1); The spiral blade (10) is disposed on the outer peripheral surface of the rotating shaft (9). Rotary drive (5), the rotary drive (5) is provided on the top of the separation cylinder (1), and the rotary drive (5) is connected to the rotating shaft (9); Exhaust pipe (11), the exhaust pipe (11) is provided on the top of the separator (1).

2. The gas-solid two-phase entrainment separation structure according to claim 1, characterized in that, Also includes: Bottom bearing (7), the bottom bearing (7) is provided on the lower end plate (6), and the rotating shaft (9) is rotatably provided on the bottom bearing (7).

3. The gas-solid two-phase entrainment separation structure according to claim 2, characterized in that, The lower end plate (6) includes: Outer ring (61); Multiple first connecting holes (62) are provided on the outer ring portion (61) at circumferential intervals. Connecting arms (65), a plurality of connecting arms (65) are provided circumferentially spaced on the inner side of the outer ring portion (61). Inner ring (63), one end of the connecting arm (65) is connected to the outer ring (61), and the other end of the connecting arm (65) is connected to the inner ring (63). Multiple second connecting holes (64) are provided on the inner ring portion (63) at circumferential intervals, and the bottom bearing (7) is installed on the inner ring portion (63) through the second connecting holes (64).

4. The gas-solid two-phase entrainment separation structure according to claim 1, characterized in that, Also includes: The upper end plate (2) is provided on the top of the separation cylinder (1), and the rotation drive (5) is installed on the upper end plate (2).

5. The gas-solid two-phase entrainment separation structure according to claim 4, characterized in that, Also includes: Mounting plate (3), the mounting plate (3) is connected to the upper end plate (2), and the rotation drive (5) is mounted on the mounting plate (3); The output shaft is provided by the rotary drive (5); The output shaft is connected to the rotating shaft (9) via the coupling (4).

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