Dimethyl carbonate crystallizer

Abstract

The utility model provides a dimethyl carbonate crystallizer, which relates to the technical field of dimethyl carbonate production and processing, and comprises a crystallizer main body, the top of the crystallizer main body is provided with a top cover, the top of the top cover is provided with a replacement assembly, the replacement assembly comprises a motor and a stirring rod, the motor is arranged in the center of the top of the top cover, and the stirring rod is arranged in the middle of the top of the top cover. The output end of the motor is connected with a stirring rod, notches are formed in the upper end and the lower end of the two sides of the stirring rod correspondingly, and a spring is arranged in each notch. According to the utility model, when the stirring rod is used for stirring and processing crystals, the scraping plate can scrape on the inner wall of the crystallizer main body, and the spring can push the scraping plate, so that the scraping plate can be better attached to the interior of the crystallizer main body, and the effect is better when the inner wall is scraped; and the problem that the heat transfer efficiency of the crystallizer main body is affected due to the fact that crystals are adhered to the inner wall of the crystallizer main body during stirring and heating and cannot be cleaned is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of production and processing of dimethyl carbonate, in particular to a dimethyl carbonate crystallizer. Background Art

[0002] Dimethyl carbonate is an organic compound with many uses, such as being used to synthesize other organic compounds, pesticides, fuels, etc. By using a dimethyl carbonate crystallizer, the purity and yield of dimethyl carbonate can be improved, thereby improving its application value.

[0003] At present, when the crystallizer is in use, it is usually stirred or rotated, which can prevent scaling of the crystallizer and accumulation of crystals, maintain the heat transfer efficiency of the crystallizer, and improve production efficiency. However, during use, some crystals will stick to the inner wall of the crystallizer during stirring and heating, and they cannot be cleaned, thereby affecting the heat transfer efficiency of the crystallizer. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that crystals will stick to the inner wall of the crystallizer during stirring and heating, and cannot be cleaned, thereby affecting the heat transfer efficiency of the crystallizer and further affecting its production efficiency. A dimethyl carbonate crystallizer is proposed, comprising a crystallizer body, a top cover is arranged on the top of the crystallizer body, a replacement component is arranged on the top of the top cover, the replacement component comprises a motor and a stirring rod, the motor is arranged at the top center position of the top cover, the output end of the motor is connected to the stirring rod, notches are provided at the upper and lower ends of both sides of the stirring rod, springs are provided inside each group of the notches, a push block is connected to one side of each group of the springs, a scraper is attached to one side of each group of the push blocks, a first threaded hole is provided on the outer surface of each group of the push blocks, and the first threaded rod is penetrated and connected to the upper and lower ends of the scraper.

[0005] Preferably, the first threaded rod penetrates the scraper plate to form a threaded connection with the first threaded hole, and the position and size of the first threaded rod match the position and size of the first threaded hole.

[0006] Preferably, the push block has a "T" shape, and the push block forms an elastic structure with the spring through the notch.

[0007] Preferably, the motor is electrically connected to an external power source via a control switch, and the output end of the motor passes through the top cover and is fixedly connected to the stirring rod.

[0008] Preferably, a discharge port is provided on one side of the bottom of the crystallizer body, a flow control component is provided on one side of the surface of the discharge port, and the flow control component includes a support frame and a second threaded hole.

[0009] Preferably, the support frame is arranged on a side surface of the discharge port, a second threaded hole is opened at the top center position of the support frame, and a second threaded rod is arranged inside the second threaded hole.

[0010] Preferably, a bearing is provided at the bottom of the second threaded rod, a lifting plate is connected to the bottom of the bearing, and sliding grooves are provided on the inner walls on both sides of the support frame.

[0011] Preferably, the second threaded rod is threadedly connected to the support frame via the second threaded hole, the outer surfaces on both sides of the lifting plate are in contact with the inner surface wall of the slide groove, and the lifting plate is slidably connected to the support frame via the slide groove.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, when the stirring rod is used to stir the crystal, the scraper will also scrape the inner wall of the crystallizer body, and the spring will also push the scraper, so that the scraper can fit more closely to the inside of the crystallizer body, and the effect is better when scraping the inner wall, avoiding the problem that the crystal will stick to the inner wall of the crystallizer body during stirring and heating, and it cannot be cleaned, thereby affecting the heat transfer efficiency of the crystallizer body.

[0014] 2. In the utility model, when it is necessary to control the flow rate of the crystal discharge, the second threaded rod can be rotated to make the second threaded rod move downward, and the lifting plate is pushed downward through the bearing, so that the lifting plate moves downward, and the flow rate of the discharge port is controlled, thereby avoiding the problem that the existing crystallizer body cannot control the crystal discharge flow rate, and improving the overall practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A main perspective view of a dimethyl carbonate crystallizer is provided for the utility model;

[0016] Figure 2 An exploded perspective view of a dimethyl carbonate crystallizer is proposed for the utility model;

[0017] Figure 3 A cross-sectional stereoscopic diagram of a stirring rod of a dimethyl carbonate crystallizer is provided for the utility model;

[0018] Figure 4 Based Figure 3 The enlarged stereogram at A in the middle;

[0019] Figure 5 A push block stereogram of a dimethyl carbonate crystallizer is proposed for the utility model;

[0020] Figure 6The utility model provides an exploded stereogram of a support frame of a dimethyl carbonate crystallizer.

[0021] Legend: 1. Crystallizer body; 2. Top cover; 3. Replacement assembly; 301. Motor; 302. Stirring rod; 303. Notch; 304. Spring; 305. Push block; 306. Scraper; 307. First threaded rod; 308. First threaded hole; 4. Discharge port; 5. Flow control assembly; 501. Support frame; 502. Second threaded hole; 503. Second threaded rod; 504. Bearing; 505. Lifting plate; 506. Slide groove. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Embodiment 1, as Figure 1-6 As shown, the utility model provides a dimethyl carbonate crystallizer, including a crystallizer body 1, a top cover 2 is arranged on the top of the crystallizer body 1, a replacement component 3 is arranged on the top of the top cover 2, the replacement component 3 includes a motor 301 and a stirring rod 302, the motor 301 is arranged at the top center of the top cover 2, the output end of the motor 301 is connected to the stirring rod 302, the upper and lower ends of both sides of the stirring rod 302 are provided with notches 303, each group of notches 303 is provided with a spring 304, each group of springs 304 is connected to a push block 305 on one side, and each group of push blocks 305 is connected to one side of the push block 305. A scraper 306 is attached to the sides, and a first threaded hole 308 is opened on the outer surface of each group of push blocks 305. The upper and lower ends of the scraper 306 are penetrated by a first threaded rod 307. The position and size of the first threaded rod 307 match the position and size of the first threaded holes 308. The push block 305 has a "T" shape. The push block 305 forms an elastic structure with the spring 304 through the slot 303. The motor 301 is electrically connected to the external power supply through the control switch. The output end of the motor 301 passes through the top cover 2 and is fixedly connected with the stirring rod 302.

[0025] The effect achieved by the entire embodiment 1 is that when it is necessary to perform a crystallization operation on dimethyl carbonate, dimethyl carbonate is first poured into the crystallizer body 1, and then the heating function of the crystallizer body 1 can be turned on for heating, and then the motor 301 is turned on by the control switch, so that the motor 301 drives the stirring rod 302 through the output end to stir the dimethyl carbonate in the crystallizer body 1, thereby improving the crystallization efficiency. When the stirring rod 302 is stirring, the spring 304 will also push the push block 305 through its own elasticity, and the push block 305 will also push the scraper 306 to fit the inner wall of the crystallizer body 1, so that the scraper 306 will also scrape the inner wall of the crystallizer body 1 along with the stirring rod 302, thereby improving the cleanliness of the inner wall of the crystallizer body 1. When used for a long time, the scraper When 306 is worn and cannot fit with the inner wall of the crystallizer body 1, the top cover 2 can be disassembled by bolts first, and then the first threaded rod 307 can be rotated in the opposite direction to remove the first threaded rod 307 from the first threaded hole 308, and then the old scraper 306 can be removed to complete the disassembly. When a new scraper 306 needs to be installed, the scraper 306 can be fitted on both sides of the stirring rod 302, and then the first threaded rod 307 is passed through the scraper 306 and fixed with the first threaded hole 308 to complete the replacement of the scraper 306. Then the top cover 2 can be installed by bolts. In this way, the problem of the crystal sticking to the inner wall of the crystallizer body 1 during stirring and heating and being unable to be cleaned, thereby affecting the heat transfer efficiency of the crystallizer body 1, is avoided.

[0026] Embodiment 2, as Figure 1-6 As shown, a discharge port 4 is provided on one side of the bottom of the crystallizer body 1, and a flow control component 5 is provided on one side of the surface of the discharge port 4. The flow control component 5 includes a support frame 501 and a second threaded hole 502. The support frame 501 is provided on one side surface of the discharge port 4. A second threaded hole 502 is provided at the top center of the support frame 501. A second threaded rod 503 is provided inside the second threaded hole 502. A bearing 504 is provided at the bottom of the second threaded rod 503. A lifting plate 505 is connected to the bottom of the bearing 504. Slide grooves 506 are provided on the inner walls of both sides of the support frame 501. The second threaded rod 503 is threadedly connected to the support frame 501 through the second threaded hole 502. The outer surfaces of both sides of the lifting plate 505 are in contact with the inner surface walls of the slide groove 506. The lifting plate 505 is slidably connected to the support frame 501 through the slide groove 506.

[0027] The effect achieved by the entire embodiment 2 is that, when it is necessary to control and reduce the flow rate when the crystal is discharged, the second threaded rod 503 can be rotated in the reverse direction first, so that the second threaded rod 503 and the second threaded hole 502 are threadedly rotated and move downward. When the second threaded rod 503 descends, it will also push the lifting plate 505 downward through the bearing 504, so that the lifting plate 505 moves downward. While the lifting plate 505 moves downward, both sides will also slide in the slide groove 506 to make its descending change stable. In this way, the flow rate of the discharge port 4 is controlled. When the flow rate of the crystal needs to be increased when the crystal is discharged, the second threaded rod 503 can be rotated forward, thereby avoiding the problem that the existing crystallizer body 1 cannot control the crystal discharge flow rate, thereby improving the overall practicality.

[0028] Working principle: When the stirring rod 302 is used to stir the crystals, the scraper 306 will also scrape the inner wall of the crystallizer body 1, and the spring 304 will also push the scraper 306, so that the scraper 306 can fit more closely to the inside of the crystallizer body 1, and the effect is better when scraping the inner wall, thereby avoiding the problem that the crystals stick to the inner wall of the crystallizer body 1 during stirring and heating, and cannot be cleaned, thereby affecting the heat transfer efficiency of the crystallizer body 1. When it is necessary to control the flow rate of the crystal when discharging, the second threaded rod 503 can be rotated to move downward, and the lifting plate 505 can be pushed downward through the bearing 504, so that the lifting plate 505 moves downward, and the flow rate of the discharge port 4 is controlled, thereby avoiding the problem that the existing crystallizer body 1 cannot control the crystal discharge flow rate, thereby improving the overall practicality.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A dimethyl carbonate crystallizer, comprising a crystallizer body (1), characterized in that: A top cover (2) is arranged on the top of the crystallizer body (1), and a replacement component (3) is arranged on the top of the top cover (2); The replacement component (3) comprises a motor (301) and a stirring rod (302), wherein the motor (301) is arranged at the top center position of the top cover (2), the output end of the motor (301) is connected to the stirring rod (302), notches (303) are provided at the upper and lower ends of both sides of the stirring rod (302), a spring (304) is provided inside each group of notches (303), a push block (305) is connected to one side of each group of springs (304), a scraper (306) is attached to one side of each group of push blocks (305), a first threaded hole (308) is provided on the outer surface of each group of push blocks (305), and a first threaded rod (307) is penetrated and connected to the upper and lower ends of the scraper (306).

2. A dimethyl carbonate crystallizer according to claim 1, characterized in that: After the first threaded rod (307) passes through the scraper plate (306), a threaded connection is formed between the first threaded hole (308); the position and size of the first threaded rod (307) match the position and size of the first threaded hole (308).

3. A dimethyl carbonate crystallizer according to claim 2, characterized in that: The push block (305) has a "T" shape, and the push block (305) forms an elastic structure through the notch (303) and the spring (304).

4. A dimethyl carbonate crystallizer according to claim 3, characterized in that: The motor (301) is electrically connected to an external power source via a control switch, and an output end of the motor (301) passes through the top cover (2) and is fixedly connected to the stirring rod (302).

5. A dimethyl carbonate crystallizer according to claim 4, characterized in that: A discharge port (4) is provided on one side of the bottom of the crystallizer body (1), and a flow control component (5) is provided on one side of the surface of the discharge port (4), wherein the flow control component (5) comprises a support frame (501) and a second threaded hole (502).

6. A dimethyl carbonate crystallizer according to claim 5, characterized in that: The support frame (501) is arranged on a side surface of the discharge port (4), a second threaded hole (502) is provided at the center of the top of the support frame (501), and a second threaded rod (503) is provided inside the second threaded hole (502).

7. A dimethyl carbonate crystallizer according to claim 6, characterized in that: A bearing (504) is provided at the bottom of the second threaded rod (503), a lifting plate (505) is connected to the bottom of the bearing (504), and sliding grooves (506) are provided on the inner walls on both sides of the support frame (501).

8. A dimethyl carbonate crystallizer according to claim 7, characterized in that: The second threaded rod (503) is threadedly connected to the support frame (501) via the second threaded hole (502); the outer surfaces on both sides of the lifting plate (505) are in contact with the inner surface wall of the slide groove (506); and the lifting plate (505) is slidably connected to the support frame (501) via the slide groove (506).

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