Vacuum distillation and purification device for high-purity calcium

Abstract

The utility model relates to purification equipment, belongs to the technical field of metal preparation, and particularly relates to a high-purity calcium vacuum distillation and purification device which comprises a distillation barrel, a distillation crucible is arranged in the distillation barrel, a top cover is arranged at the top end of the distillation barrel, a condenser is arranged on the inner top wall of the top cover, a cleaning assembly is arranged in the top cover, and the cleaning assembly is connected with the distillation crucible. Heating rods are arranged on the periphery of the distillation barrel, and vacuum equipment is arranged on one side of the distillation barrel; according to the device, the effects of scraping and cleaning the inner wall of the distillation barrel, scraping calcium powder adsorbed on the inner wall of the distillation barrel, increasing resource recovery, preventing waste and improving the utilization rate of samples are achieved, and the problem that the existing calcium purification equipment is difficult to clean in the use process is solved. And calcium gas is easy to adhere to the inner wall of the container in the condensation process and is not easy to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of metal preparation, in particular to a high-purity calcium vacuum distillation purification device. Background Art

[0002] Calcium, in the preparation of numerous high-purity rare earth metals, high-purity calcium is an ideal reducing agent. Its purity directly affects the purity of the resulting product, and thus affects its final performance. Especially in the production and preparation of certain nuclear materials, high-purity calcium plays an indispensable role. Among the methods for purifying and refining calcium, the most widely used method is vacuum distillation.

[0003] In the prior art, a high-purity calcium vacuum distillation purification device disclosed in a Chinese patent with announcement number CN209443071U includes a heating furnace, a distillation reaction tank, a crucible, a crucible cover, a guide, a furnace cover, a connecting rod, an impurity condensation plate, a first condensation plate, a second condensation plate, a third condensation plate, a water cooling jacket and a vacuum system; the heating furnace is provided with a first heating module, a separation ring and a second heating module from top to bottom; wherein the separation ring is located on the inner wall of the heating furnace and divides the internal space of the heating furnace into an upper heating zone and a lower heating zone in the vertical direction; a plurality of through holes are provided on the crucible cover; the crucible is located in the lower heating zone inside the heating furnace; the guide is arranged on the inner wall of the distillation reaction tank; the connecting rod is vertically arranged at the bottom of the furnace cover; the impurity condensation plate, the first condensation plate, the second condensation plate and the third condensation plate are all circular plates. The utility model makes the collection rate of high-purity calcium higher, reduces the production cost, and the impurities are condensed on the impurity condensation plate, which is more convenient to clean.

[0004] However, this patent still has some shortcomings. During the condensation process of calcium gas (produced by calcium evaporation), part of the calcium gas will adhere to the inner wall of the reaction tank, which is difficult to clean. If it is not cleaned, it will also affect the amount of calcium obtained in the end. Therefore, a high-purity calcium vacuum distillation and purification device is proposed to solve the above problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model proposes a high-purity calcium vacuum distillation and purification device, which can scrape and clean the inner wall of the distillation barrel and scrape off the calcium powder adsorbed on the inner wall of the distillation barrel, thereby increasing resource recovery, preventing waste, and improving sample utilization.

[0006] The technical solution for achieving the purpose of the utility model is: a high-purity calcium vacuum distillation and purification device, comprising a distillation barrel, a distillation crucible is arranged in the distillation barrel, a top cover is arranged at the top of the distillation barrel, a condenser is arranged on the inner top wall of the top cover, a cleaning assembly is arranged in the top cover, heating rods are arranged around the distillation barrel, and a vacuum device is arranged on one side of the distillation barrel.

[0007] In some embodiments, installation bins are disposed around the distillation barrel, the heating rods are disposed in the installation bins, and each of the installation bins is distributed at equal distances along the outer side of the distillation barrel.

[0008] In some embodiments, the vacuum device is connected to the inner cavity of the distillation barrel through a pipeline.

[0009] In some embodiments, the condenser includes a first condensation plate fixedly connected to the inner top wall of the top cover, a second condensation plate is disposed on the lower surface of the first condensation plate, and holes are formed through the first condensation plate and the second condensation plate.

[0010] In some embodiments, the cleaning assembly includes a handle rotatably connected to the top cover, the bottom end of the handle extends into the top cover and is fixedly connected to a main gear, the inner top wall of the top cover is rotatably connected to an inner gear ring, and the main gear is meshed with the inner gear ring.

[0011] In some embodiments, the cleaning assembly further comprises a cleaning gear rotatably connected to the inner top wall of the top cover, a cleaning scraper is fixedly connected to the bottom end of the cleaning gear, and the cleaning gear is meshed with an inner gear ring.

[0012] Compared with the prior art, the present invention has the following significant advantages:

[0013] The utility model, through the cleaning component provided, after completing the distillation and purification, rotates the handle, the handle drives the main gear to rotate, the main gear drives the inner gear ring to rotate, the rotation of the inner gear ring causes the cleaning gear to rotate, the cleaning gear drives the cleaning scraper to rotate and at the same time gradually moves one circle along the inner gear ring, scrapes and cleans the inner wall of the distillation barrel, scrapes off the calcium powder adsorbed on the inner wall of the distillation barrel, can increase resource recovery, prevent waste, and improve the utilization rate of samples.

[0014] The invention solves the problem that calcium gas is easy to adhere to the inner wall of the container during the condensation process and is difficult to clean during the use of the existing calcium purification equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 It is a schematic diagram of the main structure provided in one embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of a heating rod (cross-section) provided in one embodiment of the utility model;

[0018] Figure 3 It is a schematic diagram of the internal (cross-sectional) structure of a distillation barrel provided in one embodiment of the utility model;

[0019] Figure 4It is a schematic diagram of the internal structure of the top cover provided in one embodiment of the utility model.

[0020] Description of reference numerals:

[0021] 1. Distillation barrel; 2. Distillation crucible; 3. Top cover; 4. Condenser; 401. First condensation plate; 402. Second condensation plate; 5. Cleaning assembly; 501. Handle; 502. Main gear; 503. Inner gear ring; 504. Cleaning gear; 505. Cleaning scraper; 6. Heating rod; 7. Vacuum equipment; 8. Installation bin. Implementation

[0022] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides a high-purity calcium vacuum distillation purification device through improvement. The technical solution of the utility model is:

[0024] like Figure 1 As shown, a high-purity calcium vacuum distillation and purification device comprises a distillation barrel 1, in which a distillation crucible 2 is arranged. The distillation crucible 2 is simply placed in the distillation barrel 1 without a rigid connection. A top cover 3 is arranged on the top of the distillation barrel 1, and the top cover 3 and the distillation barrel 1 are fixed with bolts to ensure air tightness. A condenser 4 is arranged on the inner top wall of the top cover 3, and a cleaning assembly 5 is arranged in the top cover 3. Heating rods 6 are arranged around the distillation barrel 1, and a vacuum device 7 is arranged on one side of the distillation barrel 1. The vacuum device 7 is the same as the vacuum device 7 in the prior art and will not be repeated here.

[0025] like Figure 2 As shown, in one embodiment, installation bins 8 are arranged around the distillation barrel 1, and heating rods 6 are arranged in the installation bins 8. Each installation bin 8 is evenly distributed along the outer side of the distillation barrel 1. The evenly distributed installation bins 8 and heating rods 6 can make the distillation barrel 1 heat up faster and more evenly.

[0026] The vacuum device 7 is connected to the inner cavity of the distillation barrel 1 through a pipeline;

[0027] like Figure 3As shown, in one embodiment, the condenser 4 includes a first condensation plate 401 fixedly connected to the inner top wall of the top cover 3, and there are corresponding supporting columns between the first condensation plate 401 and the second condensation plate 402. The second condensation plate 402 is arranged on the lower surface of the first condensation plate 401, and holes are penetrated by the first condensation plate 401 and the second condensation plate 402. The arrangement of the two layers of condensation plates can better collect the evaporated calcium powder.

[0028] like Figure 4 As shown, in one embodiment, the cleaning assembly 5 includes a handle 501 rotatably connected to the top cover 3, the bottom end of the handle 501 extends into the top cover 3 and is fixedly connected to a main gear 502, the inner top wall of the top cover 3 is rotatably connected to an inner gear ring 503, a circular slide groove adapted to the inner gear ring 503 is opened on the top cover 3, the movement trajectory of the inner gear ring 503 is actually a circular sliding movement, and the main gear 502 is meshed with the inner gear ring 503;

[0029] The cleaning assembly 5 also includes a cleaning gear 504 rotatably connected to the inner top wall of the top cover 3. A circular slide groove compatible with the cleaning gear 504 is opened on the top cover 3. The cleaning gear 504 is in the slide groove and is carried by the inner gear ring 503 to perform circular motion. The bottom end of the cleaning gear 504 is fixedly connected to a cleaning scraper 505, and the cleaning gear 504 is meshed with the inner gear ring 503.

[0030] The specific working method is: when the high-purity calcium vacuum distillation and purification device is used, the crude calcium sample is placed in the distillation crucible 2, and the vacuum equipment 7 is started to evacuate the internal environment of the distillation barrel 1. After the vacuum environment is completed, the heating rod 6 is started to heat the interior of the entire distillation barrel 1. Under high temperature, calcium and other components begin to evaporate and are gradually adsorbed by the first condensation plate 401 and the second condensation plate 402. After the entire distillation is completed, the handle 501 is turned, and the handle 501 drives the main gear 502 to rotate, and the main gear 502 drives the inner ring 503 to rotate. The rotation of the inner ring 503 causes the cleaning gear 504 to rotate, and the cleaning gear 504 drives the cleaning scraper 505 to rotate and gradually moves along the inner ring 503 for one circle, so as to scrape and clean the inner wall of the distillation barrel 1, and scrape off the calcium powder adsorbed on the inner wall of the distillation barrel 1, which can increase resource recovery and prevent waste.

[0031] The technical means disclosed in the utility model are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacement of the above technical features. Matters not covered in the utility model belong to the common knowledge of those skilled in the art.

Claims

1. A high-purity calcium vacuum distillation purification device, comprising a distillation barrel (1), characterized in that: A distillation crucible (2) is arranged in the distillation barrel (1), a top cover (3) is arranged at the top of the distillation barrel (1), a condenser (4) is arranged on the inner top wall of the top cover (3), a cleaning component (5) is arranged in the top cover (3), heating rods (6) are arranged around the distillation barrel (1), and a vacuum device (7) is arranged on one side of the distillation barrel (1).

2. A high-purity calcium vacuum distillation purification device according to claim 1, characterized in that: The distillation barrel (1) is provided with installation bins (8) around it, and the heating rods (6) are arranged in the installation bins (8), and each of the installation bins (8) is distributed at equal distances along the outer side of the distillation barrel (1).

3. A high-purity calcium vacuum distillation purification device according to claim 1, characterized in that: The vacuum device (7) is connected to the inner cavity of the distillation barrel (1) via a pipeline.

4. A high-purity calcium vacuum distillation purification device according to claim 1, characterized in that: The condenser (4) comprises a first condensation plate (401) fixedly connected to the inner top wall of the top cover (3), a second condensation plate (402) is arranged on the lower surface of the first condensation plate (401), and holes are provided through the first condensation plate (401) and the second condensation plate (402).

5. A high-purity calcium vacuum distillation purification device according to claim 1, characterized in that: The cleaning assembly (5) comprises a handle (501) rotatably connected to the top cover (3); the bottom end of the handle (501) extends into the top cover (3) and is fixedly connected to a main gear (502); the inner top wall of the top cover (3) is rotatably connected to an inner gear ring (503); the main gear (502) meshes with the inner gear ring (503).

6. A high-purity calcium vacuum distillation purification device according to claim 5, characterized in that: The cleaning assembly (5) further comprises a cleaning gear (504) rotatably connected to the inner top wall of the top cover (3); a cleaning scraper (505) is fixedly connected to the bottom end of the cleaning gear (504); and the cleaning gear (504) is meshed with the inner gear ring (503).

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