Low-temperature reduced pressure distillation device

Abstract

The utility model relates to the technical field of reduced pressure distillation, in particular to a low-temperature reduced pressure distillation device which comprises a bottom plate, a distillation mechanism arranged on the front side of the bottom plate and a condensation mechanism used for condensing distilled solution and located on the rear side of the bottom plate. The distillation mechanism comprises a stirring assembly used for stirring and heating a solution and a lifting assembly used for adjusting the heating depth of the solution, a side scraping plate is rotationally mounted on the mounting frame, and a cleaning assembly used for cleaning the solution adhered to the surface of the side scraping plate is arranged on the inner wall of the distillation tank. The device has the beneficial effects that a residual solution adhered to the inner wall of the distillation retort is scraped off by utilizing the side scraping plate, then the solution remained on the side scraping plate is vibrated off by utilizing the cleaning assembly, and meanwhile, the vibrated-off solution is rapidly stirred, so that the residual solution is rapidly mixed with an original solution, and thus the quality of the distillation retort is improved. Therefore, the solution is prevented from remaining on the inner wall of the distillation retort to influence the later extraction purity.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum distillation, in particular to a low-temperature vacuum distillation device. Background Art

[0002] Vacuum distillation is a commonly used separation and purification technology used to separate liquid mixtures based on their boiling point differences. By reducing the pressure within the operating vessel, the liquid mixture evaporates and separates at a lower temperature. Vacuum distillation is suitable for liquid mixtures with large boiling point differences, achieving liquid purification.

[0003] By comparing with a low-temperature reduced-pressure distillation device with patent announcement number CN221655851U, in this scheme, the material placed in is preferentially diverted outward through the cooperation of splash guard A and splash guard B, so that the position of the material is staggered with the feed port, and then the material is continued to be diverted downward so that the material is discharged below the splash guard A. However, in the process of stirring and mixing the solution, a part of the solution may adhere to and remain on the inner wall of the device, and then this part of the solution may not obtain the corresponding distillation process, which may cause the purity of the solution after distillation and extraction to change, reduce the purity of the extract, lead to reduced output, and increase the difficulty of later cleaning of the inner wall of the device. Utility Model Content

[0004] The purpose of this utility model is to provide a low-temperature vacuum distillation device in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A low-temperature vacuum distillation apparatus comprises a bottom plate, a distillation mechanism is provided on the front side of the bottom plate, and a condensation mechanism for condensing a solution after distillation, the condensation mechanism being located on the rear side of the bottom plate;

[0007] The distillation mechanism includes a stirring assembly for stirring and heating the solution, and a lifting assembly for adjusting the heating depth of the solution;

[0008] The stirring assembly includes a distillation tank arranged on the front side of the base plate, a water bath heating cylinder is provided under the distillation tank, a stirring shaft is rotatably installed inside the distillation tank, a rotating motor is installed at the rotating end of the stirring shaft, a plurality of upper stirring blades are fixed on the upper side of the stirring shaft, and a plurality of lower stirring blades are fixed on the lower side of the stirring shaft. The upper stirring blades and the lower stirring blades are arranged in opposite inclination directions. Two front-to-back symmetrical mounting frames are fixed on the stirring shaft near the inner wall of the distillation tank, side scrapers are rotatably installed on the mounting frames, and a cleaning assembly for cleaning the solution adhering to the surface of the side scraper is provided on the inner wall of the distillation tank.

[0009] Preferably: the cleaning assembly includes an arc-shaped platform arranged on the inner wall of the distillation tank, and a striking plate and multiple convex plates are arranged in sequence next to the arc-shaped platform on the inner wall of the distillation tank. A torsion spring is connected between the rotating end of the side scraper and the mounting frame, and a protrusion is provided on one end of the striking plate close to the arc-shaped platform.

[0010] Preferably: the lifting assembly includes a slide rail arranged at the front end of the base plate, a lead screw is rotatably installed in the slide rail, a movable plate is slidably installed in the slide rail, the movable plate is threadedly connected to the lead screw, two front and rear symmetrical clamps are slidably installed at the rear end of the movable plate, a threaded rod is rotatably installed at the rear end of the movable plate, the clamps are threadedly connected to the threaded rod, the two clamps are connected by bolts, and the distillation tank is arranged between the two clamps.

[0011] Preferably, the condensing mechanism includes a base arranged at the rear end of the bottom plate, a collecting tank is provided above the base, a connecting pipe is provided at the upper end of the collecting tank, a condensing pipe is provided between the connecting pipe and the distillation tank, and a pressure reducing pump is installed on the side wall of the connecting pipe.

[0012] Preferably, a lower scraper is fixed to the bottom end of the stirring shaft, a thermometer and a feed pipe are provided at the upper end of the distillation tank, the feed pipe and the thermometer are respectively distributed on the front and rear sides of the rotating motor, and a solenoid valve is installed on the feed pipe.

[0013] Preferably: a rotating handle is fixed to the upper end of the lead screw, a rotating handle is fixed to the front end of the threaded rod, and the condenser tube is detachable.

[0014] Compared with the prior art, the beneficial effects are as follows:

[0015] The distillation tank is moved to a suitable heating position by the lifting assembly, and then the solution is fully and evenly stirred by the stirring assembly to make the solution heated more evenly. At the same time, the side scraper is used to scrape off the residual solution adhering to the inner wall of the distillation tank, and the cleaning assembly is used to shake off the solution remaining on the side scraper. At the same time, the shaken solution is quickly stirred to quickly mix the residual solution with the original solution, thereby preventing the solution from remaining on the inner wall of the distillation tank and affecting the purity of the subsequent extraction, thereby ensuring the purity of the solution extraction and the extraction yield, and reducing the difficulty of cleaning the inner wall of the distillation tank in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 This is a spatial stereogram of a low-temperature vacuum distillation apparatus according to the present invention;

[0018] Figure 2 This is a structural schematic diagram of a lifting assembly of a low-temperature vacuum distillation device according to the present invention;

[0019] Figure 3 This is a structural cross-sectional view of the interior of a distillation tank of a low-temperature vacuum distillation device according to the present invention;

[0020] Figure 4 yes Figure 3 A partial enlarged view of point A in the middle;

[0021] Figure 5 It is a schematic diagram of the structure inside the distillation tank of a low-temperature vacuum distillation device described in the utility model.

[0022] The following are the descriptions of the reference numerals:

[0023] 100. Bottom plate; 201. Distillation tank; 202. Water bath heating tube; 203. Slide rail; 204. Lead screw; 205. Moving plate; 206. Threaded rod; 207. Clamping plate; 208. Rotating motor; 209. Stirring shaft; 210. Thermometer; 211. Lower stirring blade; 212. Upper stirring blade; 213. Mounting frame; 214. Side scraper; 215. Torsion spring; 216. Lower scraper; 217. Arc table; 218. Beating plate; 219. Convex plate; 301. Condenser; 302. Connecting pipe; 303. Pressure reducing pump; 304. Collecting tank; 305. Base. DETAILED DESCRIPTION

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] like Figure 1-Figure 5 As shown, a low-temperature reduced-pressure distillation device includes a base plate 100, a distillation mechanism for low-pressure distillation of a solution, the distillation mechanism is located on the front side of the base plate 100, and a condensation mechanism for condensing the solution after distillation, the condensation mechanism is located on the rear side of the base plate 100.

[0027] In this embodiment: the distillation mechanism includes a stirring component for stirring and heating the solution, and a lifting component for adjusting the heating depth of the solution.

[0028] The lifting assembly includes a slide rail 203 arranged on the front side of the base plate 100, a lead screw 204 is rotatably installed in the slide rail 203, a rotating handle is fixed to the upper end of the lead screw 204, a movable plate 205 is slidably installed in the slide rail 203, the movable plate 205 is threadedly connected to the lead screw 204, two front and rear symmetrical clamping plates 207 are slidably installed at the rear end of the movable plate 205, a threaded rod 206 is rotatably installed at the rear end of the movable plate 205, a rotating handle is fixed to the front end of the threaded rod 206, the clamping plate 207 is threadedly connected to the threaded rod 206, and the two clamping plates 207 are connected by bolts.

[0029] The stirring assembly includes a distillation tank 201 arranged between two clamping plates 207, a water bath heating cylinder 202 is provided under the distillation tank 201, a stirring shaft 209 is rotatably installed inside the distillation tank 201, a rotating motor 208 is installed at the rotating end of the stirring shaft 209, a plurality of upper stirring blades 212 are fixed on the upper side of the stirring shaft 209, and a plurality of lower stirring blades 211 are fixed on the lower side of the stirring shaft 209. The upper stirring blades 212 are arranged in opposite inclination directions to the lower stirring blades 211. Two front-to-back symmetrical mounting frames 213 are fixed on the stirring shaft 209 near the inner wall of the distillation tank 201, a side scraper 214 is rotatably installed on the mounting frame 213, a lower scraper 216 is fixed to the bottom end of the stirring shaft 209, and a cleaning assembly for cleaning the solution adhering to the surface of the side scraper 214 is provided on the inner wall of the distillation tank 201.

[0030] The cleaning assembly includes an arc-shaped platform 217 arranged on the inner wall of the distillation tank 201, and a striking plate 218 and a plurality of convex plates 219 are sequentially arranged on the inner wall of the distillation tank 201 next to the arc-shaped platform 217. A torsion spring 215 is connected between the rotating end of the side scraper 214 and the mounting frame 213. The striking plate 218 is provided with a convexity at one end close to the arc-shaped platform 217. A thermometer 210 and a feed pipe are provided at the upper end of the distillation tank 201. The feed pipe and the thermometer 210 are respectively distributed on the front and rear sides of the rotating motor 208. A solenoid valve is installed on the feed pipe. The distillation tank 201 is moved to a suitable heating position by the lifting assembly. Position, and then use the stirring component to fully and evenly stir the solution so that the solution is heated more evenly, and at the same time use the side scraper 214 to scrape off the residual solution adhering to the inner wall of the distillation tank 201, and then use the cleaning component to shake off the solution remaining on the side scraper 214, and at the same time quickly stir the shaken solution to quickly mix the residual solution with the original solution, thereby preventing the solution from remaining on the inner wall of the distillation tank 201 and affecting the purity of the subsequent extraction, thereby ensuring the purity of the solution extraction and the extraction yield, and reducing the difficulty of cleaning the inner wall of the distillation tank 201 in the later stage.

[0031] In this embodiment: the condensation mechanism includes a base 305 arranged at the rear end of the base plate 100, a collecting tank 304 is provided above the base 305, a connecting pipe 302 is provided at the upper end of the collecting tank 304, a condensing pipe 301 is provided between the connecting pipe 302 and the distillation tank 201, a pressure reducing pump 303 is installed on the side wall of the connecting pipe 302, and the condensing pipe 301 is detachable.

[0032] Working principle: First, pour the solution to be distilled into the distillation tank 201 through the feed pipe, rotate the screw 204 to drive the movable plate 205 to move up and down, and then rotate the threaded rod 206 to drive the two clamping plates 207 to clamp and fix the distillation tank 201, adjust the distillation tank 201 to a suitable heating height, and then start the water bath heating cylinder 202 to heat the solution inside the distillation tank 201 in a water bath.

[0033] Then drive the rotating motor 208 to drive the stirring shaft 209 to rotate, and then drive the lower stirring blade 211 and the upper stirring blade 212 to rotate at the same time, so as to fully and evenly stir the internal solution and make the solution heated more evenly. While the stirring shaft 209 rotates, it drives the two mounting frames 213 to rotate, and then drives the two side scrapers 214 to rotate, so as to scrape off the residual solution that may adhere to the inner wall of the distillation tank 201. As the side scrapers 214 rotate, the side scrapers 214 will meet the curved platform 217, and then the curved platform 217 will squeeze the side scrapers 214, causing the side scrapers 214 to flip to a certain extent, and the torsion springs 215 are used to store force on the side scrapers 214.

[0034] When the side scraper 214 is released from the squeeze between the curved platform 217, the side scraper 214 is quickly flipped back to the opposite direction as the torsion spring 215 accumulates force, and then the side scraper 214 collides with the protrusion on the striking plate 218 after flipping over, causing the side scraper 214 to vibrate to a certain extent, and the solution remaining on the surface is shaken into the distillation tank 201. As the side scraper 214 rotates, it collides with multiple protrusions 219, causing the side scraper 214 to produce a small amplitude, and stir the solution below slightly, thereby causing the shaken solution to mix quickly with the original solution, making the shaken solution heated more evenly, thereby preventing the solution from remaining on the inner wall of the distillation tank 201 and affecting the purity of the subsequent extraction, thereby ensuring the purity and yield of the solution extraction, and reducing the difficulty of cleaning the inner wall of the distillation tank 201 in the later stage. The steam formed after distillation is condensed into liquid again through the condenser 301, and then flows into the collection tank 304 for collection.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A low temperature vacuum distillation device, comprising a bottom plate (100), wherein a distillation mechanism is arranged on the front side of the bottom plate (100), Features: It also includes a condensation mechanism for condensing the solution after distillation, and the condensation mechanism is located on the rear side of the bottom plate (100); The distillation mechanism includes a stirring component for stirring and heating the solution, and a lifting component for adjusting the heating depth of the solution; The stirring assembly comprises a distillation tank (201) arranged at the front side of the bottom plate (100), a water bath heating cylinder (202) being arranged below the distillation tank (201), a stirring shaft (209) being rotatably mounted inside the distillation tank (201), a rotating motor (208) being mounted at the rotating end of the stirring shaft (209), a plurality of upper stirring blades (212) being fixed on the upper side of the stirring shaft (209), a plurality of lower stirring blades (211) being fixed on the lower side of the stirring shaft (209), the upper stirring blades (212) and the lower stirring blades (211) being arranged in opposite inclination directions, two front-to-back symmetrical mounting frames (213) being fixed on the stirring shaft (209) near the inner wall of the distillation tank (201), a side scraper (214) being rotatably mounted on the mounting frame (213), and a cleaning assembly for cleaning the solution adhered to the surface of the side scraper (214) being arranged on the inner wall of the distillation tank (201).

2. A low temperature vacuum distillation apparatus according to claim 1, Features: The cleaning assembly comprises an arc-shaped platform (217) arranged on the inner wall of the distillation tank (201); a striking plate (218) and a plurality of convex plates (219) are sequentially arranged on the inner wall of the distillation tank (201) adjacent to the arc-shaped platform (217); a torsion spring (215) is connected between the rotating end of the side scraper (214) and the mounting frame (213); and a protrusion is arranged at one end of the striking plate (218) close to the arc-shaped platform (217).

3. A low temperature vacuum distillation apparatus according to claim 2, Features: The lifting assembly comprises a slide rail (203) arranged at the front end of the base plate (100), a lead screw (204) being rotatably installed in the slide rail (203), a movable plate (205) being slidably installed in the slide rail (203), the movable plate (205) being threadedly connected to the lead screw (204), two front-to-back symmetrical clamping plates (207) being slidably installed at the rear end of the movable plate (205), a threaded rod (206) being rotatably installed at the rear end of the movable plate (205), the clamping plate (207) being threadedly connected to the threaded rod (206), the two clamping plates (207) being connected by bolts, and the distillation tank (201) being arranged between the two clamping plates (207).

4. A low temperature vacuum distillation apparatus according to claim 3, Features: The condensing mechanism comprises a base (305) arranged at the rear end of the bottom plate (100), a collecting tank (304) is arranged above the base (305), a connecting pipe (302) is arranged at the upper end of the collecting tank (304), a condensing pipe (301) is arranged between the connecting pipe (302) and the distillation tank (201), and a pressure reducing pump (303) is installed on the side wall of the connecting pipe (302).

5. A low temperature vacuum distillation apparatus according to claim 4, Features: A lower scraper (216) is fixed to the bottom end of the stirring shaft (209), and a thermometer (210) and a feed pipe are provided at the upper end of the distillation tank (201). The feed pipe and the thermometer (210) are respectively distributed on the front and rear sides of the rotating motor (208), and a solenoid valve is installed on the feed pipe.

6. A low temperature vacuum distillation apparatus according to claim 5, Features: A rotating handle is fixed to the upper end of the lead screw (204), a rotating handle is fixed to the front end of the threaded rod (206), and the condenser tube (301) is detachable.

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