Flash steam recovery device

Abstract

The utility model relates to the technical field of flash steam recovery, and discloses a flash steam recovery device which comprises a separation tank, the bottom of the separation tank is conical, a connecting cylinder is fixedly connected to the center of the bottom of the separation tank, a filter plate is installed in the separation tank, a cleaning mechanism is arranged in the separation tank, and a sealing cover is fixedly connected to the top of the separation tank. A lifting box vertically slides in the connecting cylinder, a placing opening is formed in the surface of the lifting box, a collecting mechanism is arranged in the lifting box, an air inlet pipe and a collecting pipe are horizontally and fixedly connected to the surface of the separating tank, and a first valve and a second valve are installed on the surfaces of the air inlet pipe and the collecting pipe respectively. Through the arrangement of the rotating shaft and the screw rod, the scraping plate, the first cleaning rod and the second cleaning rod in the separation tank can be conveniently slid during use, so that the bottom of the filter plate and the inner wall of the separation tank can be conveniently cleaned, gas can be continuously filtered, and meanwhile, the lifting box can slide up and down in a matched manner; and therefore, dirt after cleaning can be conveniently collected.

Description

Technical Field

[0001] The utility model relates to the technical field of flash steam recovery, in particular to a flash steam recovery device. Background Art

[0002] Methanol Plant No. 3 gasification refers to using methanol as raw material, heating and decomposing it in a gasifier to produce gas, usually including hydrogen, carbon monoxide and carbon dioxide. These gases can be used as raw materials or fuels in industrial production to further increase the output and benefits of methanol. Methanol gasification is an important link in the methanol production process, which can improve the utilization rate and production efficiency of methanol.

[0003] The flash steam compressor in the gasification workshop of the methanol plant No. 3 currently needs to be shut down for maintenance once after 20 days of continuous operation, and each maintenance lasts 10 days. The main reason is that the internal filtration system is easy to remove dirt, resulting in blockage. At the same time, the flash steam contains a lot of dust and liquid, causing serious scaling of the cylinder body and breathing valve of the flash steam compressor, and overpressure in the system, which makes the flash steam compressor unable to operate normally. It needs to be shut down for maintenance and cleaning regularly, which will affect the use effect. Therefore, the above problems need to be solved urgently. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a flash steam recovery device.

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

[0006] A flash gas recovery device comprises a separation tank, the bottom of which is conically arranged, a connecting cylinder is fixedly connected at the center of the bottom of the separation tank, a filter plate is installed inside the separation tank, a cleaning mechanism is arranged inside the separation tank, a sealing cover is fixedly connected to the top of the separation tank, a lifting box is vertically slidable inside the connecting cylinder, a placement port is arranged on the surface of the lifting box, a collecting mechanism is arranged inside the lifting box, an air inlet pipe and a collecting pipe are horizontally fixedly connected to the surface of the separation tank, a first valve and a second valve are respectively installed on the surfaces of the air inlet pipe and the collecting pipe, and through the arrangement of the rotating shaft and the screw rod, the scraper and the first cleaning rod and the second cleaning rod inside the separation tank can be easily slid during use, thereby facilitating the cleaning of the bottom of the filter plate and the inner wall of the separation tank, so that the gas can be continuously filtered, and at the same time, the lifting box is cooperated with the up and down sliding of the lifting box, so as to facilitate the collection of the cleaned dirt.

[0007] Preferably, the cleaning mechanism includes a scraper, a rotating shaft is rotatably connected at the inner center of the separation tank, the top end of the rotating shaft is sleeved at the inner center of the sealing cover, a motor is installed on the top of the sealing cover, the motor output shaft is fixedly connected to the top end of the rotating shaft, two scrapers are provided, both of which slide on the bottom of the filter plate, a first connecting sleeve is rotatably connected at the bottom center of the filter plate, the first connecting sleeve is sleeved on the surface of the rotating shaft, and the two scrapers are fixedly connected to the surface of the first connecting sleeve at one end close to each other, so as to drive the two scrapers to rotate, thereby cleaning the dirt generated on the bottom of the filter plate.

[0008] Furthermore, two first cleaning rods are slidingly arranged on the inner wall of the separation tank, and the two first cleaning rods are vertically arranged, and the two first cleaning rods are respectively fixedly connected to one end of the two scrapers away from each other, and the bottom ends of the two first cleaning rods are fixedly connected to the second cleaning rods, and the two second cleaning rods slide on the inner wall of the cone at the bottom of the separation tank, and a second connecting sleeve is rotatably connected at the center of the interior of the separation tank, and the second connecting sleeve is sleeved on the surface of the rotating shaft, and two connecting rods are horizontally fixedly connected to the surface of the second connecting sleeve, and the bottom ends of the two second cleaning rods are respectively fixedly connected to one end of the two second connecting sleeves away from each other, which are used to simultaneously rotate the two first cleaning rods and the two second cleaning rods, thereby facilitating the cleaning of dirt inside the separation tank.

[0009] Preferably, the collecting mechanism includes a collecting box, which is placed inside the lifting box, and a sewage outlet is provided on the surface of the connecting tube, and the collecting box slides inside the sewage outlet and the placement port, and two vertical grooves are vertically provided on the inner wall of the connecting tube, and vertically sliding limit blocks are provided inside the two vertical grooves, and the two limit blocks are fixedly connected to the surface of the lifting box, and a sealing box is vertically slidable on the surface of the connecting tube, and the sealing box is sleeved on the surface of the connecting tube, and a fixing rod is fixedly connected at the center of the inside of the sealing box, and the fixing rod is inserted into the bottom of the connecting tube, and the top of the fixing rod is fixedly connected to the center of the bottom of the lifting box, so that the collecting box can be installed inside the lifting box, thereby facilitating the collection of collected dirt and also facilitating the treatment of dirt inside the collecting box.

[0010] Furthermore, a support plate is provided at the center of the separation tank, and the support plate is arranged at the bottom of the second connecting sleeve, and a plurality of support rods are fixedly connected to the bottom of the support plate, and the bottom ends of the plurality of support rods are fixedly connected to the inner wall of the separation tank, the rotating shaft sleeve is arranged inside the support plate, and a screw rod is rotatably connected at the center of the connecting tube, and the screw rod is fixedly connected to the bottom end of the rotating shaft, and a connecting sleeve is fixedly connected at the center of the top of the lifting box, and the screw rod sleeve is arranged inside the connecting sleeve, and the connecting sleeve cooperates with the screw rod, and a plurality of leakage grooves are provided at the top of the lifting box, and an arc groove is provided at the connection between the bottom of the separation tank and the connecting tube, and the arc groove is arranged in a circular shape, and a baffle is vertically slidable inside the arc groove, and a spring is installed on the top of the baffle, and the spring sleeve is arranged on the surface of the rotating shaft and the screw rod, and the top of the spring is arranged at the bottom of the support plate, and the baffle cooperates with the connecting sleeve to limit the lifting box from sliding up and down, and can also drive the baffle to slide up and down.

[0011] Preferably, a fixing ring is sleeved on the outer surface of the separation tank, and a supporting frame is fixedly connected to the bottom of the fixing ring for supporting the device.

[0012] The beneficial effects of the utility model are:

[0013] 1. When in use, the setting of the rotating shaft and the screw rod can facilitate the sliding of the scraper and the first cleaning rod and the second cleaning rod inside the separation tank, so as to facilitate the cleaning of the bottom of the filter plate and the inner wall of the separation tank, so that the gas can be continuously filtered, and at the same time, the lifting box can be slid up and down to facilitate the collection of the cleaned dirt.

[0014] 2. When in use, the baffle can be set to block the separation tank and the connecting tube. At the same time, when in use, the connecting sleeve will also drive the baffle to slide upward, so that the dirt collection is more convenient. At the same time, the sealing box will also block the surface of the sewage outlet, making the device safer to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of a flash steam recovery device proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of a separation tank of a flash vapor recovery device proposed by the utility model;

[0017] Figure 3 A schematic diagram of a cleaning mechanism of a flash vapor recovery device proposed in the utility model;

[0018] Figure 4 A schematic diagram of a collection mechanism of a flash vapor recovery device proposed in the utility model;

[0019] Figure 5The utility model is a partial structural schematic diagram of a flash steam recovery device.

[0020] In the figure: 1. separation tank; 11. air inlet pipe; 12. first valve; 13. collecting pipe; 14. second valve; 15. sealing cover; 16. connecting tube; 17. sewage outlet; 18. vertical groove; 19. support plate; 110. support rod; 111. arc groove; 2. fixing ring; 21. support frame; 3. rotating shaft; 31. motor; 32. screw rod; 4. first connecting sleeve; 41. scraper; 42. first cleaning rod; 43. second cleaning rod; 44. second connecting sleeve; 45. connecting rod; 46. connecting ring; 5. baffle; 51. spring; 6. lifting box; 61. placement port; 62. connecting sleeve; 63. limit block; 64. fixing rod; 65. sealing box; 66. leakage groove; 7. collecting box; 8. filter plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-Figure 5 , a flash gas recovery device comprises a separation tank 1, the bottom of the separation tank 1 is arranged in a conical shape, a connecting tube 16 is fixedly connected at the center of the bottom of the separation tank 1, a filter plate 8 is installed inside the separation tank 1, a cleaning mechanism is arranged inside the separation tank 1, a sealing cover 15 is fixedly connected to the top of the separation tank 1, a lifting box 6 is vertically slidable inside the connecting tube 16, a placement port 61 is arranged on the surface of the lifting box 6, a collecting mechanism is arranged inside the lifting box 6, an air inlet pipe 11 and a collecting pipe 13 are horizontally fixedly connected to the surface of the separation tank 1, and a first valve 12 and a second valve 14 are respectively installed on the surfaces of the air inlet pipe 11 and the collecting pipe 13. Through the arrangement of the rotating shaft 3 and the screw rod 32, the scraper 41 and the first cleaning rod 42 and the second cleaning rod 43 inside the separation tank 1 can be easily slid when in use, so as to facilitate the cleaning of the bottom of the filter plate 8 and the inner wall of the separation tank 1, so that the gas can be continuously filtered, and at the same time, the lifting box 6 is cooperated with the up and down sliding, so as to facilitate the collection of the cleaned dirt.

[0023] Reference Figure 1 , Figure 2 and Figure 3In a preferred embodiment, the cleaning mechanism includes a scraper 41, a rotating shaft 3 is rotatably connected at the inner center of the separation tank 1, the top of the rotating shaft 3 is sleeved at the inner center of the sealing cover 15, a motor 31 is installed on the top of the sealing cover 15, and the output shaft of the motor 31 is fixedly connected to the top of the rotating shaft 3. There are two scrapers 41, both of which slide on the bottom of the filter plate 8, and a first connecting sleeve 4 is rotatably connected at the bottom center of the filter plate 8. The first connecting sleeve 4 is sleeved on the surface of the rotating shaft 3, and the two scrapers 41 are fixedly connected to the surface of the first connecting sleeve 4 at one end close to each other, so as to drive the two scrapers 41 to rotate, thereby cleaning the dirt generated at the bottom of the filter plate 8.

[0024] Reference Figure 1 and Figure 3 In a preferred embodiment, two first cleaning rods 42 are slidingly arranged on the inner wall of the separation tank 1, and the two first cleaning rods 42 are both vertically arranged. The two first cleaning rods 42 are respectively fixedly connected to the two scrapers 41 at one end away from each other, and the bottom ends of the two first cleaning rods 42 are fixedly connected to the second cleaning rods 43. The two second cleaning rods 43 slide on the inner wall of the cone at the bottom of the separation tank 1, and a second connecting sleeve 44 is rotatably connected at the center of the interior of the separation tank 1. The second connecting sleeve 44 is sleeved on the surface of the rotating shaft 3, and two connecting rods 45 are horizontally fixedly connected to the surface of the second connecting sleeve 44. The bottom ends of the two second cleaning rods 43 are respectively fixedly connected to the two second connecting sleeves 44 at one end away from each other, which is used to simultaneously rotate the two first cleaning rods 42 and the two second cleaning rods 43, so as to facilitate cleaning of the dirt inside the separation tank 1.

[0025] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 In a preferred embodiment, the collecting mechanism includes a collecting box 7, which is placed inside the lifting box 6. A sewage outlet 17 is provided on the surface of the connecting tube 16. The collecting box 7 slides inside the sewage outlet 17 and the placement port 61. Two vertical grooves 18 are vertically provided on the inner wall of the connecting tube 16. Limiting blocks 63 are vertically slidable inside the two vertical grooves 18. The two limiting blocks 63 are fixedly connected to the surface of the lifting box 6. A sealing box 65 is vertically slidable on the surface of the connecting tube 16. The sealing box 65 is sleeved on the surface of the connecting tube 16. A fixing rod 64 is fixedly connected to the center of the inside of the sealing box 65. The fixing rod 64 is inserted into the bottom of the connecting tube 16. The top of the fixing rod 64 is fixedly connected to the center of the bottom of the lifting box 6, so that the collecting box 7 can be installed inside the lifting box 6, so as to facilitate the collection of the collected dirt and also facilitate the treatment of the dirt inside the collecting box 7.

[0026] Reference Figure 3 and Figure 4In a preferred embodiment, a support plate 19 is provided at the center of the separation tank 1, and the support plate 19 is provided at the bottom of the second connecting sleeve 44. A plurality of support rods 110 are fixedly connected to the bottom of the support plate 19, and the bottom ends of the plurality of support rods 110 are fixedly connected to the inner wall of the separation tank 1. The rotating shaft 3 is sleeved inside the support plate 19, and a screw rod 32 is rotatably connected to the center of the connecting tube 16, and the screw rod 32 is fixedly connected to the bottom end of the rotating shaft 3. A connecting sleeve 62 is fixedly connected to the center of the top of the lifting box 6, and the screw rod 32 is sleeved in the connecting sleeve 62. The connecting sleeve 62 cooperates with the screw rod 32, a plurality of leakage grooves 66 are arranged on the top of the lifting box 6, and an arc groove 111 is arranged at the connection between the bottom of the separation tank 1 and the connecting tube 16. The arc groove 111 is arranged in a circular shape, and a baffle 5 slides vertically inside the arc groove 111. A spring 51 is installed on the top of the baffle 5. The spring 51 is sleeved on the surface of the rotating shaft 3 and the screw rod 32, and the top of the spring 51 is arranged at the bottom of the support plate 19. The baffle 5 cooperates with the connecting sleeve 62 to limit the lifting box 6 from sliding up and down, and can also drive the baffle 5 to slide up and down.

[0027] Reference Figure 1 In a preferred embodiment, a fixing ring 2 is sleeved on the outer surface of the separation tank 1, and a supporting frame 21 is fixedly connected to the bottom of the fixing ring 2 for supporting the device.

[0028] From the above description, it can be seen that the above-mentioned embodiments of the utility model achieve the following technical effects: in actual use, through the setting of the rotating shaft 3 and the screw rod 32, the scraper 41 and the first cleaning rod 42 and the second cleaning rod 43 inside the separation tank 1 can be easily slid during use, so as to facilitate the cleaning of the bottom of the filter plate 8 and the inner wall of the separation tank 1, so that the gas can be continuously filtered, and at the same time, the lifting box 6 can be slid up and down to facilitate the collection of the cleaned dirt. When in use, the flash steam to be recovered can be connected to one end of the air inlet pipe 11 through a pipeline, and then the collection box 7 can be placed inside the lifting box 6 through the sewage outlet 17 and the placement port 61, and then the motor 31 is driven to drive the rotating shaft 3 is rotated, at this time, the rotating shaft 3 will also drive the screw rod 32 to rotate, and under the cooperation of the connecting sleeve 62 and the restriction of the two limit blocks 63, the lifting box 6 will slide upward. When the lifting box 6 slides to the top, the baffle 5 will be driven to slide upward through the connecting sleeve 62, so that the interior of the separation tank 1 and the interior of the lifting box 6 can be connected. Then, when the connecting sleeve slides to the top of the screw rod 32, the lifting box 6 will stop sliding upward, and at the same time, under the connection of the fixing rod 64, it will also drive the sealing box 65 to slide upward, so that the sealing box 65 blocks the surface of the sewage outlet 17. At the same time, under the rotation of the rotating shaft 3, the first connecting sleeve 4 and the second connecting sleeve 44 will be driven at the same time, so that the two first connecting sleeves 4 and 44 can be connected. A connecting sleeve 4 slides on the bottom of the filter plate 8, so that the flash steam passes through and filters the flash steam. At the same time, the dirt accumulated on the bottom of the filter plate 8 after filtering is cleaned. At the same time, the two first cleaning rods 42 and the two second cleaning rods 43 slide, so that the inner wall of the separation tank 1 can be cleaned at the same time, so that the dirt generated inside the separation tank 1 can be cleaned at the same time. The cleaned dirt will fall to the bottom through the separation tank 1, and then the baffle 5 slides upward to make the dirt slide through the multiple leakage grooves 66 on the top of the lifting box 6 to the inside of the collection box 7, so as to facilitate the collection of the dirt. At the same time, the filtered flash steam will be collected through the collection pipe 13. When needed When the dirt inside the collecting box 7 is processed, the rotating shaft 3 and the screw rod 32 can be driven to rotate by the reverse driving motor 31. At this time, under the action of the spring 51, a downward force will be applied to the baffle 5 and the connecting sleeve 62. At this time, the connecting sleeve 62 will cooperate with the screw rod 32, so that the connecting sleeve 62 and the lifting box 6 will slide downward, and the baffle 5 will also slide into the arc groove 111, so as to block the separation tank 1 and the connecting tube 16. At the same time, the downward sliding of the lifting box 6 will also drive the sealing box 65 to slide downward, so that the sewage outlet 17 can be opened, and then the collecting box 7 can be taken out through the sewage outlet 17 and the placement port 61, so as to facilitate the same treatment of the dirt inside the collecting box 7.

[0029] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. 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 figure. For example, if the device in the accompanying 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.

[0030] 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, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0032] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A flash gas recovery device, comprising a separation tank (1), characterized in that: The bottom of the separation tank (1) is arranged in a conical shape. A connecting tube (16) is fixedly connected at the center of the bottom of the separation tank (1). A filter plate (8) is installed inside the separation tank (1). A cleaning mechanism is arranged inside the separation tank (1). A sealing cover (15) is fixedly connected to the top of the separation tank (1). A lifting box (6) is vertically slid inside the connecting tube (16). A placement port (61) is arranged on the surface of the lifting box (6). A collecting mechanism is arranged inside the lifting box (6). An air intake pipe (11) and a collecting pipe (13) are fixedly connected horizontally to the surface of the separation tank (1). A first valve (12) and a second valve (14) are respectively installed on the surfaces of the air intake pipe (11) and the collecting pipe (13).

2. A flash gas recovery device according to claim 1, characterized in that: The cleaning mechanism comprises a scraper (41), a rotating shaft (3) is rotatably connected at the center of the separation tank (1), the top end of the rotating shaft (3) is sleeved at the center of the sealing cover (15), a motor (31) is installed at the top of the sealing cover (15), the output shaft of the motor (31) is fixedly connected to the top end of the rotating shaft (3), two scrapers (41) are provided, and the two scrapers (41) slide on the bottom of the filter plate (8).

3. A flash gas recovery device according to claim 2, characterized in that: A first connecting sleeve (4) is rotatably connected to the center of the bottom of the filter plate (8), the first connecting sleeve (4) is sleeved on the surface of the rotating shaft (3), and the two scrapers (41) are fixedly connected to the surface of the first connecting sleeve (4) at one end close to each other.

4. A flash gas recovery device according to claim 3, characterized in that: Two first cleaning rods (42) are slidably mounted on the inner wall of the separation tank (1). The two first cleaning rods (42) are both vertically arranged. The two first cleaning rods (42) are respectively fixedly connected to two scrapers (41) at one end away from each other. The bottom ends of the two first cleaning rods (42) are respectively fixedly connected to second cleaning rods (43). The two second cleaning rods (43) slide on the inner wall of the cone at the bottom of the separation tank (1). A second connecting sleeve (44) is rotatably connected at the center of the separation tank (1). The second connecting sleeve (44) is sleeved on the surface of the rotating shaft (3). Two connecting rods (45) are horizontally fixedly connected to the surface of the second connecting sleeve (44). The bottom ends of the two second cleaning rods (43) are respectively fixedly connected to two second connecting sleeves (44) at one end away from each other.

5. A flash gas recovery device according to claim 4, characterized in that: The collecting mechanism comprises a collecting box (7), the collecting box (7) is placed inside the lifting box (6), a sewage outlet (17) is provided on the surface of the connecting tube (16), the collecting box (7) slides inside the sewage outlet (17) and the placement port (61), two vertical grooves (18) are vertically provided on the inner wall of the connecting tube (16), and vertically sliding limit blocks (63) are provided inside the two vertical grooves (18), and the two limit blocks (63) are fixedly connected to the surface of the lifting box (6).

6. A flash gas recovery device according to claim 5, characterized in that: A sealing box (65) is vertically slidably disposed on the surface of the connecting tube (16). The sealing box (65) is sleeved on the surface of the connecting tube (16). A fixing rod (64) is fixedly connected to the center of the interior of the sealing box (65). The fixing rod (64) is inserted into the bottom of the connecting tube (16). The top end of the fixing rod (64) is fixedly connected to the center of the bottom of the lifting box (6).

7. A flash gas recovery device according to claim 6, characterized in that: A support plate (19) is provided at the center of the separation tank (1), and the support plate (19) is arranged at the bottom of the second connecting sleeve (44). A plurality of support rods (110) are fixedly connected to the bottom of the support plate (19), and the bottom ends of the plurality of support rods (110) are fixedly connected to the inner wall of the separation tank (1). The rotating shaft (3) is sleeved inside the support plate (19), and a screw rod (32) is rotatably connected to the center of the connecting tube (16), and the screw rod (32) is fixedly connected to the bottom end of the rotating shaft (3).

8. A flash gas recovery device according to claim 7, characterized in that: A connecting sleeve (62) is fixedly connected at the center of the top of the lifting box (6), the screw rod (32) is sleeved inside the connecting sleeve (62), and the connecting sleeve (62) cooperates with the screw rod (32). A plurality of leakage grooves (66) are arranged on the top of the lifting box (6), and an arc groove (111) is arranged at the connection between the bottom of the separation tank (1) and the connecting tube (16). The arc groove (111) is arranged in a circular shape, and a baffle (5) is vertically slid inside the arc groove (111). A spring (51) is installed on the top of the baffle (5), and the spring (51) is sleeved on the surface of the rotating shaft (3) and the screw rod (32). The top of the spring (51) is arranged at the bottom of the support plate (19), and the baffle (5) cooperates with the connecting sleeve (62).

9. A flash gas recovery device according to claim 1, characterized in that: A fixing ring (2) is sleeved on the outer surface of the separation tank (1), and a support frame (21) is fixedly connected to the bottom of the fixing ring (2).

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