High-vacuum distillation device for sticky liquid

Abstract

The utility model discloses a high-vacuum distillation device for sticky liquid, and belongs to the field of fine chemical engineering. The high-vacuum distillation device for the sticky liquid comprises a distillation barrel with a heating mechanism, and further comprises a discharging pipe arranged on the upper side of the distillation barrel; the rotating shaft is rotationally arranged in the distillation barrel; the plurality of scraping plates are fixedly arranged on the rotating shaft at equal intervals in a circumferential manner; the material guiding part is obliquely arranged on the scraping plate; the square groove is formed in the scraping plate, and the square groove is formed in one side, far away from the distillation barrel, of the material guide part; viscous liquid close to the inner wall of the distillation barrel is effectively prevented from adhering to the inner wall, scraped viscous liquid is effectively prevented from continuously making contact with the inner wall of the distillation barrel, the viscous liquid close to the rotating shaft is guided through the inclined plate, the viscous liquid is evenly heated, and then the evaporation efficiency of the viscous liquid is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fine chemical industry, in particular to a high-vacuum distillation device for sticky liquids. Background Art

[0002] In the process of fine chemical production, when processing liquid products or reaction solutions, a high-vacuum distillation device is sometimes required. By distilling the crude product, impurities can be removed to achieve the purpose of purifying the product. Especially when performing high-vacuum distillation on sticky liquids, a vacuum pump, a condenser, a distillation barrel, and a collection device are used for collaborative operation.

[0003] When the current high-vacuum distillation device performs high-vacuum distillation on sticky liquids, the sticky liquid near the inner wall of the distillation barrel may adhere to the inner wall of the distillation barrel after being heated, making the distillation of the sticky liquid in the middle of the distillation barrel slower, affecting the overall distillation effect of the sticky liquid. And after simply scraping it off with a scraper, the just-scraped sticky liquid may come into contact with the inner wall of the distillation barrel again, possibly causing it to adhere again. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a high-vacuum distillation device for sticky liquids that can overcome or at least partially solve the above problems.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-vacuum distillation device for sticky liquids, comprising: a distillation barrel with a heating mechanism, and further comprising: a discharge pipe arranged on the upper side of the distillation barrel; a rotating shaft rotatably arranged in the distillation barrel; a plurality of scrapers fixedly arranged on the rotating shaft at equal circumferential intervals; a guiding part obliquely arranged on the scraper; a square groove opened on the scraper, and the square groove is arranged on the side of the guiding part away from the distillation barrel; a condenser is arranged on one side of the distillation barrel, an air extraction pipe is arranged on the upper side of the condenser, and a storage pipe is threadedly connected to the lower side of the condenser.

[0007] Preferably, a top cover is threadedly connected to the distillation barrel, a motor is fixedly connected to the top cover, and the output end of the motor is fixedly connected to the rotating shaft. A feeding port is arranged on the top cover, and a sealing cover is threadedly connected in the feeding port.

[0008] Preferably, a stirring rod is arranged between two adjacent scrapers, and the stirring rod is fixedly connected to the rotating shaft.

[0009] Furthermore, an aggregation area is arranged on the scraper, and the aggregation area is matched with the square groove.

[0010] To prevent the sticky liquid from caking, preferably, a plurality of steel wires are fixedly connected in the square groove.

[0011] To facilitate guiding the sticky liquid near the rotating shaft to the inner wall of the distillation barrel, further, a through groove is provided on one side of the scraper near the rotating shaft, and an inclined plate is fixedly connected in the through groove.

[0012] Compared with the prior art, the present invention provides a high-vacuum distillation device for sticky liquids, which has the following beneficial effects:

[0013] 1. In the high-vacuum distillation device for sticky liquids, the motor drives the rotating shaft to rotate, and the rotating shaft drives the scraper to rotate in the distillation barrel. At this time, the scraper scrapes off the sticky liquid on the side wall of the distillation barrel and moves it to the square groove through the material guiding part, so that it is far away from the inner wall of the distillation barrel, thereby effectively preventing the sticky liquid near the inner wall of the distillation barrel from adhering to the inner wall, and effectively preventing the scraped sticky liquid from continuously contacting the inner wall of the distillation barrel.

[0014] 2. In the high-vacuum distillation device for sticky liquids, when the scraper rotates along the axis of the rotating shaft, the aggregation area on the scraper aggregates the sticky liquid near the rotating shaft, so that it flows through the square groove and mixes with the sticky liquid of the material guiding part, and then contacts the inner wall of the distillation barrel again to be heated. At the same time, the liquid flowing through the square groove is separated by the steel wire, effectively preventing the distilled sticky liquid from caking. The inclined plate guides the sticky liquid near the rotating shaft to make it evenly heated, thereby effectively improving the evaporation efficiency of the sticky liquid.

[0015] The parts not involved in this device are the same as or can be implemented by the prior art. The present invention effectively prevents the sticky liquid near the inner wall of the distillation barrel from adhering to the inner wall, and effectively prevents the scraped sticky liquid from continuously contacting the inner wall of the distillation barrel. The inclined plate guides the sticky liquid near the rotating shaft to make it evenly heated, thereby effectively improving the evaporation efficiency of the sticky liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the high-vacuum distillation device for sticky liquids proposed by the present invention;

[0017] Figure 2 It is a sectional view of the distillation barrel in the high-vacuum distillation device for sticky liquids proposed by the present invention;

[0018] Figure 3 It is a top view of the scraper in the high-vacuum distillation device for sticky liquids proposed by the present invention;

[0019] Figure 4 It is a schematic structural diagram of the scraper in the high-vacuum distillation device for sticky liquids proposed by the present invention.

[0020] In the figure: 1, distillation barrel; 101, top cover; 102, feeding port; 103, sealing cover; 104, discharge pipe; 105, condenser; 106, storage pipe; 107, air extraction pipe; 108, motor; 109, rotating shaft; 110, stirring rod; 2, scraper; 201, material guiding part; 202, aggregation area; 203, square groove; 204, steel wire; 205, through groove; 206, inclined plate. Specific embodiments

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

[0022] Example 1: Refer to Figures 1 - 4 , a high-vacuum distillation device for sticky liquids, comprising: a distillation barrel 1 with a heating mechanism, further comprising: a discharge pipe 104, arranged on the upper side of the distillation barrel 1; a rotating shaft 109, rotatably arranged in the distillation barrel 1; a plurality of scrapers 2, fixedly arranged on the rotating shaft 109 at equal circumferential intervals; a material guiding part 201, inclinedly arranged on the scraper 2; a square groove 203, opened on the scraper 2, and the square groove 203 is arranged on the side of the material guiding part 201 away from the distillation barrel 1; a condenser 105 is arranged on one side of the distillation barrel 1, an air extraction pipe 107 is arranged on the upper side of the condenser 105, and a storage pipe 106 is threadedly connected to the lower side of the condenser 105.

[0023] The distillation barrel 1 is threadedly connected with a top cover 101, a motor 108 is fixedly connected to the top cover 101, and the output end of the motor 108 is fixedly connected to the rotating shaft 109. A feeding port 102 is arranged on the top cover 101, and a sealing cover 103 is threadedly connected in the feeding port 102.

[0024] A stirring rod 110 is arranged between two adjacent scrapers 2, and the stirring rod 110 is fixedly connected to the rotating shaft 109.

[0025] When performing vacuum distillation on the viscous liquid, the viscous liquid to be distilled is added into the distillation barrel 1 through the feeding port 102, and then the sealing cover 103 is covered. The gas in the distillation barrel 1 is extracted by connecting an external vacuum pump with a pressure gauge to the air extraction pipe 107, so that it is always under a certain negative pressure, and then the viscous liquid is heated by the heating mechanism in the distillation barrel 1.

[0026] The rotating shaft 109 is driven to rotate by the motor 108. The rotating shaft 109 drives the scraper 2 to rotate inside the distillation barrel 1. At this time, the scraper 2 scrapes off the viscous liquid on the side wall of the distillation barrel 1 and moves it towards the square groove 203 through the material guiding part 201, moving it away from the inner wall of the distillation barrel 1, thus effectively preventing the viscous liquid near the inner wall of the distillation barrel 1 from adhering to the inner wall and effectively preventing the scraped viscous liquid from continuously contacting the inner wall of the distillation barrel 1.

[0027] Embodiment 2: Refer to Figures 1 - 4 , the high-vacuum distillation device for sticky liquid, which is basically the same as Embodiment 1. Further, an aggregation area 202 is provided on the scraper 2, and the aggregation area 202 matches the square groove 203.

[0028] A plurality of steel wires 204 are fixedly connected inside the square groove 203.

[0029] A through groove 205 is provided on one side of the scraper 2 close to the rotating shaft 109, and an inclined plate 206 is fixedly connected inside the through groove 205.

[0030] When the scraper 2 rotates along the axis of the rotating shaft 109, the aggregation area 202 on the scraper 2 aggregates the viscous liquid close to the rotating shaft 109, making it flow through the square groove 203 and mix with the viscous liquid of the material guiding part 201, and then re-contact the inner wall of the distillation barrel 1 to be heated. At the same time, the liquid flowing through the square groove 203 is separated by the steel wires 204, effectively preventing the caking phenomenon of the distilled viscous liquid. The inclined plate 206 guides the viscous liquid close to the rotating shaft 109, making it evenly heated, and thus effectively improving the evaporation efficiency of the viscous liquid.

[0031] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A high vacuum distillation apparatus for viscous liquids, comprising: A distillation barrel (1) with a heating mechanism, characterized in that it also comprises: A discharge pipe (104) is arranged on the upper side of the distillation barrel (1); A rotating shaft (109) rotatably disposed in the distillation barrel (1); A plurality of scrapers (2) are fixedly arranged on the rotating shaft (109) at equal intervals in a circumference; A material guiding portion (201) is obliquely arranged on the scraper (2); A square groove (203) is provided on the scraper (2), and the square groove (203) is arranged on a side of the material guiding portion (201) away from the distillation barrel (1); A condenser (105) is provided on one side of the distillation barrel (1), a vacuum pipe (107) is provided on the upper side of the condenser (105), and a storage pipe (106) is threadedly connected to the lower side of the condenser (105).

2. The high vacuum distillation apparatus for viscous liquid according to claim 1, characterized in that: The distillation barrel (1) is threadedly connected to a top cover (101), to which a motor (108) is fixedly connected, and an output end of the motor (108) is fixedly connected to a rotating shaft (109), and a feeding port (102) is provided on the top cover (101), and a sealing cover (103) is threadedly connected to the inner surface of the feeding port (102).

3. The high vacuum distillation apparatus for viscous liquid according to claim 1, characterized in that: A stirring rod (110) is provided between two adjacent scrapers (2), and the stirring rod (110) is fixedly connected to the rotating shaft (109).

4. The high vacuum distillation apparatus for viscous liquid according to claim 1, characterized in that: The scraper (2) is provided with a gathering area (202), and the gathering area (202) matches the square groove (203).

5. The high vacuum distillation apparatus for viscous liquid according to claim 4, characterized in that: A plurality of steel wires (204) are fixedly connected in the square groove (203).

6. The high vacuum distillation apparatus for viscous liquid according to claim 1, characterized in that: A through groove (205) is provided on one side of the scraper (2) close to the rotating shaft (109), and an inclined plate (206) is fixedly connected in the through groove (205).

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