Thin film evaporation device for removing dimethyl sulfide

Abstract

The utility model discloses a thin film evaporation device for removing dimethyl sulfide, which comprises a thin film evaporation container main body, the top of the thin film evaporation container main body is provided with a feed port, and the top of the right side of the thin film evaporation container main body is provided with a steam heating external connection pipe used for being externally connected with a steam heater; and a film mesh is arranged in the film evaporation container main body. According to the utility model, the dimethyl sulfide material is spread on the film mesh through the rotating scraper blade to form a film so as to promote evaporation, and the thickness of the film scraped by the scraper blade can be adjusted according to the viscosity of the material and the change of the raw material, so that the situation that the evaporation efficiency is influenced by the too thick or too thin dimethyl sulfide material in the prior art is avoided; and the structure is simple, and adjustment is convenient, so that the scraper blade can flexibly adjust the thickness of the film according to actual changes, the adaptability in evaporation use is improved, and the use requirement for accurate removal of dimethyl sulfide is greatly met.

Description

Technical Field

[0001] This utility model relates to the field of evaporation equipment technology, and in particular to a thin-film evaporation device for removing dimethyl sulfide. Background Technology

[0002] Thin-film evaporators are a new type of high-efficiency and energy-saving falling film evaporators. The main principle is that after the material enters the evaporator, it is forced to form a film by the stirring of the hanging plate on the rotor. The heat source heats the liquid through the cylinder wall and the liquid boils. After the secondary steam is vaporized, it passes through the film trap to remove the entrained droplets and is discharged. The concentrated liquid is released from the bottom outlet.

[0003] In the chemical and related industries, the removal of dimethyl sulfide is crucial. Currently, thin-film evaporation is one of the commonly used removal methods, among which mechanical scraping technology is widely used; it uses a rotating scraper to form a thin film of dimethyl sulfide on the inner wall of the evaporator to promote evaporation.

[0004] However, in existing mechanical film evaporation systems, the viscosity and flow rate of the material often change with process requirements and raw material variations. Different operating conditions require different film thicknesses, and excessively thick or thin dimethyl sulfide (DMS) materials will affect evaporation efficiency and product quality. Existing scrapers cannot flexibly adjust the film thickness according to these actual changes, limiting their adaptability to complex operating conditions and failing to meet the urgent need for precise and efficient removal of DMS in current chemical production. Therefore, this invention proposes a thin-film evaporation device for removing DMS. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a thin-film evaporation device for removing dimethyl sulfide.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A thin-film evaporation device for removing dimethyl sulfide includes a thin-film evaporation container body, a feed inlet at the top of the thin-film evaporation container body, and a steam heating external pipe for connecting to an external steam heater at the top right side of the thin-film evaporation container body; a thin-film mesh is provided inside the thin-film evaporation container body, and a scraper for spreading and scraping dimethyl sulfide material onto the thin-film mesh is provided above the thin-film mesh.

[0008] The inner cavity of the thin-film evaporator body is fixedly installed with a mounting shell at the top. A movable shaft is movably installed inside the mounting shell. The bottom end of the movable shaft rotates through to the bottom of the mounting shell and is fixedly connected to the scraper. A lifting plate is movably installed inside the mounting shell. A rotary motor is fixedly installed on the lifting plate. The output shaft of the rotary motor is fixedly connected to the top end of the movable shaft.

[0009] Uprights are fixedly connected to the lifting plates on both sides of the rotary motor. Straight racks are fixedly connected to the outer side of the uprights. The first motor is fixedly installed on the inner walls of both sides of the inner cavity of the thin film evaporator body through mounting seats. The output shaft of the first motor is fixedly connected to a gear, which meshes with the straight rack. A positioning component for positioning the straight rack is also provided below the gear.

[0010] Furthermore, the positioning component includes a mounting box fixedly installed on the side wall of the main body of the thin film evaporation container. A threaded tube is movably installed inside the mounting box. The right end of the threaded tube movably extends to the outside of the mounting box and is fixedly connected to a positioning chuck for positioning the straight rack. A second motor is fixedly installed inside the mounting box. The output shaft of the second motor is fixedly connected to a screw rod, which is threadedly connected to the threaded tube.

[0011] Furthermore, lateral sliders are symmetrically arranged on the threaded tube inside the mounting box, and lateral grooves are provided on the top and bottom inner walls of the mounting box. The lateral sliders are slidably installed in the lateral grooves in the horizontal direction.

[0012] Furthermore, guide balls are rolled on both ends of the lifting plate, and guide grooves are provided on both inner walls of the main body of the thin film evaporation container. The guide balls are rolled and connected to the inner wall of the guide grooves in the vertical direction.

[0013] Furthermore, a vertical slider is fixedly connected to the top outer side of the stand by a bracket, and a slide rail is provided on the side wall of the main body of the thin film evaporation container, with the vertical slider slidingly mounted on the slide rail in the vertical direction.

[0014] Furthermore, a controller is provided on the right side of the main body of the thin film evaporation container, and the controller is electrically connected to the rotary motor, the first motor and the second motor respectively.

[0015] The beneficial effects achieved by this utility model using the above structure are as follows:

[0016] In this invention, a rotating scraper spreads dimethyl sulfide material onto a film mesh to form a film, thereby promoting evaporation. A first motor drives a gear to rotate, which meshes with a rack and pinion to move the rack and pinion up or down. The rack and pinion then move the frame, lifting plate, rotating motor, movable shaft, and scraper up or down. By adjusting the scraper up and down, the thickness of the film after scraping the dimethyl sulfide material can be adjusted.

[0017] Ultimately, this invention not only uses a rotating scraper to spread dimethyl sulfide material onto a film mesh to form a film, thus promoting evaporation, but also allows for adjustment of the film thickness scraped by the scraper according to material viscosity and raw material changes. This avoids the previous situation where excessively thick or thin dimethyl sulfide material affected evaporation efficiency. Furthermore, the structure is simple and easy to adjust, enabling the scraper to flexibly adjust the film thickness according to actual changes, improving adaptability in evaporation applications and greatly meeting the needs for precise removal of dimethyl sulfide. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a thin-film evaporation device for removing dimethyl sulfide according to the present invention;

[0019] Figure 2 This is a partial structural schematic diagram of the present invention;

[0020] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A;

[0021] Figure 4 This is a schematic diagram of the threaded tube in this utility model.

[0022] In the diagram: 1. Main body of the thin-film evaporator; 101. Feed inlet; 102. Steam heating external pipe; 2. Mounting shell; 3. Movable shaft; 4. Scraper; 5. Thin-film mesh; 6. Lifting plate; 7. Rotary motor; 8. Controller; 9. Vertical slider; 10. Stand; 11. Support; 12. First motor; 13. Gear; 14. Straight rack; 15. Mounting box; 16. Threaded pipe; 17. Positioning chuck; 18. Second motor; 19. Screw; 20. Horizontal slider; 21. Guide ball; 22. Guide groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-4 A thin-film evaporation device for removing dimethyl sulfide includes a thin-film evaporation container body 1, with a feed inlet 101 at the top of the thin-film evaporation container body 1, and a steam heating external pipe 102 for connecting to an external steam heater at the top right side of the thin-film evaporation container body 1; a thin-film mesh 5 is provided inside the thin-film evaporation container body 1, and a scraper 4 for spreading and scraping dimethyl sulfide material onto the thin-film mesh 5 is provided above the thin-film mesh 5;

[0025] A mounting shell 2 is fixedly installed at the top of the inner cavity of the thin-film evaporator body 1. A movable shaft 3 is movably installed inside the mounting shell 2. The bottom end of the movable shaft 3 rotates through to the bottom of the mounting shell 2 and is fixedly connected to the scraper 4. A lifting plate 6 is movably installed inside the mounting shell 2. A rotary motor 7 is fixedly installed on the lifting plate 6. The output shaft of the rotary motor 7 is fixedly connected to the top end of the movable shaft 3. A support frame 10 is fixedly connected to the lifting plate 6 on both sides of the rotary motor 7. A rack 14 is fixedly connected to the outside of the support frame 10. A first motor 12 is fixedly installed on the inner walls of both sides of the inner cavity of the thin-film evaporator body 1 through mounting seats. A gear 13 is fixedly connected to the output shaft of the first motor 12. The gear 13 meshes with the rack 14. A positioning component for positioning the rack 14 is also provided below the gear 13.

[0026] In this embodiment, the positioning component includes a mounting box 15 fixedly installed on the side wall of the thin film evaporator body 1. A threaded tube 16 is movably installed inside the mounting box 15. The right end of the threaded tube 16 movably extends to the outside of the mounting box 15 and is fixedly connected to a positioning tooth 17 for positioning the rack 14. A second motor 18 is fixedly installed inside the mounting box 15. The output shaft of the second motor 18 is fixedly connected to a screw 19, and the screw 19 is threadedly connected to the threaded tube 16.

[0027] Among them, a transverse slider 20 is symmetrically arranged on the threaded tube 16 located inside the mounting box 15. A transverse groove is provided on the top inner wall and the bottom inner wall of the mounting box 15. The transverse slider 20 is slidably installed in the transverse groove in the horizontal direction.

[0028] In this embodiment, guide balls 21 are rolled on both ends of the lifting plate 6, and guide grooves 22 are provided on both sides of the inner wall of the thin film evaporator body 1. The guide balls 21 are rolled in connection with the inner wall of the guide grooves 22 in the vertical direction. A vertical slider 9 is fixedly connected to the top of the outer side of the stand 10 through the bracket 11. A slide rail is provided on the side wall of the thin film evaporator body 1, and the vertical slider 9 is slidably installed on the slide rail in the vertical direction.

[0029] The thin-film evaporator body 1 has a controller 8 on its right side, which is electrically connected to the rotary motor 7, the first motor 12 and the second motor 18.

[0030] like Figure 1-4The thin-film evaporation device shown is used for removing dimethyl sulfide. During thin-film evaporation, the rotating motor 7 drives the movable shaft 3 and the scraper 4 to rotate. In this way, the rotating scraper 4 can spread the dimethyl sulfide material on the thin-film mesh 5 to form a thin film, thereby promoting evaporation. Furthermore, the scraper 4 can adjust the film thickness according to actual needs during the scraping process of dimethyl sulfide material. Specifically, during adjustment: first, the second motor 18 drives the screw 19 to rotate, causing the threaded tube 16 to thread to the left on the screw 19. When the threaded tube 19 moves to the left, it drives the positioning tooth 17 to move to the left and disengages from the rack 14. Then, the first motor 12 drives the gear 13 to rotate. When the gear 13 rotates, it meshes with the rack 14, allowing the rack 14 to move up or down. The rack 14 then drives the stand 10, lifting plate 6, rotary motor 7, movable shaft 3, and scraper 4 to move up or down. In this way, by adjusting the scraper 4 up and down, the film thickness after scraping dimethyl sulfide material can be adjusted. Finally, the second motor 18 works in the opposite direction, causing the threaded tube 19 and positioning tooth 17 to move to the right and engage with the rack 14 for positioning.

[0031] Ultimately, in practical use, this invention can adjust the thickness of the film scraped by the scraper 4 according to the viscosity of the material and changes in the raw materials, avoiding the situation where the evaporation efficiency was affected by the excessively thick or thin dimethyl sulfide material. Moreover, the structure is simple and easy to adjust, which allows the scraper to flexibly adjust the film thickness according to actual changes, improving the adaptability in use and greatly meeting the needs of precise removal of dimethyl sulfide.

[0032] 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 thin film evaporation device for removing dimethyl sulfide, comprising a thin film evaporation container body (1), the top of the thin film evaporation container body (1) is provided with a feed inlet (101), the right top of the thin film evaporation container body (1) is provided with a steam heating external connecting pipe (102) for external connecting a steam heater; characterized in that, The film evaporation container body (1) is provided with a film mesh (5), and the upper side of the film mesh (5) is provided with a scraper (4) for spreading and scraping the dimethyl sulfide material on the film mesh (5); The top of the inner cavity of the film evaporation container body (1) is fixedly provided with a mounting shell (2), the mounting shell (2) is movably provided with a movable shaft (3), the bottom end of the movable shaft (3) is rotatably penetrated into the lower side of the mounting shell (2) and is fixedly connected with the scraper (4); the mounting shell (2) is movably provided with a lifting plate (6), the lifting plate (6) is fixedly provided with a rotary motor (7), the output shaft of the rotary motor (7) is fixedly connected with the top end of the movable shaft (3); The lifting plate (6) on both sides of the rotary motor (7) is fixedly connected with a stand (10), the outer side of the stand (10) is fixedly connected with a straight rack (14), the inner wall of the inner cavity of the film evaporation container body (1) is fixedly provided with a first motor (12) through a mounting seat, the output shaft of the first motor (12) is fixedly connected with a gear (13), the gear (13) is engaged with the straight rack (14); the lower side of the gear (13) is further provided with a positioning assembly for positioning the straight rack (14).

2. A thin film evaporation apparatus for removal of dimethyl sulfide according to claim 1, characterized in that The positioning assembly comprises a mounting box (15) fixedly installed on the side wall of the film evaporation container body (1), a threaded pipe (16) movably installed in the mounting box (15), the right end of the threaded pipe (16) movably penetrates to the outer side of the mounting box (15) and is fixedly connected with a positioning ratchet (17) for positioning the straight rack (14), a second motor (18) fixedly installed in the mounting box (15), a screw rod (19) fixedly connected with the output shaft of the second motor (18), and the screw rod (19) is threadedly connected with the threaded pipe (16).

3. A thin film evaporation apparatus for removal of dimethyl sulfide according to claim 2, characterized in that The threaded pipe (16) in the mounting box (15) is symmetrically provided with a horizontal sliding block (20), and the top inner wall and the bottom inner wall of the mounting box (15) are provided with horizontal sliding grooves, and the horizontal sliding block (20) is slidingly installed in the horizontal sliding grooves.

4. The thin film evaporation apparatus for removing dimethyl sulfide according to claim 1, wherein The two ends of the lifting plate (6) are rollingly installed with guide balls (21), and the two side inner walls of the film evaporation container body (1) are provided with guide rolling grooves (22), and the guide balls (21) are rollingly connected with the inner walls of the guide rolling grooves (22) in the vertical direction.

5. The thin film evaporation apparatus for removing dimethyl sulfide according to claim 1, wherein The outer side top of the stand (10) is fixedly connected with a vertical sliding block (9) through a support (11), and the side wall of the film evaporation container body (1) is provided with a sliding rail, and the vertical sliding block (9) is slidingly installed on the sliding rail in the vertical direction.

6. The thin film evaporation apparatus for removing dimethyl sulfide according to claim 1, wherein The right side of the film evaporation container body (1) is provided with a controller (8), and the controller (8) is electrically connected with the rotary motor (7), the first motor (12) and the second motor (18).

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