Evaporative crystallization kettle

Abstract

The utility model relates to an evaporative crystallization kettle in the technical field of crystallization kettles, a stirring rod for stirring a tribromoacetone solution in a kettle cavity is arranged on a rod body of a stirring assembly, and a driving assembly for driving the stirring assembly to rotate is arranged at the top end of a crystallization kettle body; a fixing column is fixedly mounted on a rod body of the stirring assembly; and a scraping assembly for scraping the inner wall of the kettle cavity of the crystallization kettle body is arranged on the right side of the lifting assembly. Whether the scraping plate is tightly attached to the inner wall of the crystallization kettle body or not is checked through an observation window in the crystallization kettle body, if not, the rotating shaft can be driven to rotate through the hand wheel, and the screw rotates synchronously along with the rotating shaft under meshing connection of the first bevel gear and the third bevel gear; and under the connection of the four connecting rods, the scraping plate is tightly attached to the inner wall of the crystallization kettle body rightwards, so that the phenomenon that substances adhered to the inner wall of the crystallization kettle body cannot be effectively scraped when the scraping plate is abraded can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of crystallization kettles, in particular to an evaporation crystallization kettle. Background Art

[0002] In the preparation process of tribromoacetone, an evaporation crystallization kettle is required to perform evaporation and crystallization of tribromoacetone. However, after long-term use, a large amount of residue is easily adhered to the inner wall of the existing evaporation crystallization kettle. Therefore, scraper 1 and scraper 2 are used to scrape the inner wall and the bottom of the evaporation crystallization kettle to prevent tribromoacetone from adhering to the inner wall and the bottom of the evaporation crystallization kettle during crystallization.

[0003] For example, an evaporation crystallization kettle with Chinese patent application number CN202222144232.7 has a rotating rod embedded in the top of the kettle body, the bottom end of the rotating rod extends into the kettle body, a plurality of stirring rods are fixedly arranged in a symmetrical array in the middle of the rotating rod, the stirring rods are slidably embedded with a top rod at one end away from the rotating rod, and scraper plates 1 are fixedly connected between adjacent top rods, and scraper plates 1 are located on the side of adjacent top rods away from the stirring rod, a connecting rod is slidably embedded in the bottom end of the rotating rod, the bottom end of the connecting rod is located at the bottom end of the rotating rod and is fixedly connected with scraper plates 2, the top end of the rotating rod is located above the kettle body and is fixedly provided with a motor 1, and the upper fixed sleeve of the rotating rod is provided with a pulley 1, and the pulley 1 is located above the kettle body. It has the following technical defects:

[0004] When the screw is driven to rotate by motor 1, nut seat 1 and nut seat 2 are controlled to drive the spring on the top rod to be compressed, so that scraper 1 is close to the inner wall of the evaporation crystallization kettle; therefore, when the rotating rod rotates to drive the stirring rod to rotate, the rotating rod will vibrate when rotating, causing the spring on the top rod to vibrate elastically synchronously, thereby driving scraper 1 to reciprocate left and right, so that scraper 1 does not fully clean the inner wall of the evaporation crystallization kettle. Utility Model Content

[0005] In order to solve the problem proposed in the above background technology that when the motor 1 drives the screw to rotate, the nut seat 1 and the nut seat 2 are controlled to drive the spring on the top rod to compress, so that the scraper 1 is close to the inner wall of the evaporation crystallization kettle; when the rotating rod rotates and drives the stirring rod to rotate, the rotating rod will vibrate when rotating, so that the spring on the top rod will vibrate elastically synchronously, and then drive the scraper 1 to reciprocate left and right, so that the scraper 1 does not sufficiently clean the inner wall of the evaporation crystallization kettle, the utility model provides the following technical solutions:

[0006] An evaporation crystallization kettle comprises a crystallization kettle body, a stirring device for stirring a tribromoacetone solution is arranged in the kettle cavity of the crystallization kettle body, a scraping device for scraping the kettle cavity is arranged in the kettle cavity of the crystallization kettle body, and an adjusting device for controlling the extension and retraction of the scraping device is arranged in the rod body of the stirring device.

[0007] The stirring device comprises a stirring assembly arranged in the kettle cavity of the crystallization kettle body for rotation, a stirring rod for stirring the tribromoacetone solution in the kettle cavity is arranged on the rod body of the stirring assembly, and a driving assembly for driving the stirring assembly to rotate is arranged on the top of the crystallization kettle body.

[0008] The regulating device comprises an regulating component which is arranged in the stirring component and is used for rotation. A fixing column is fixedly mounted on the rod body of the stirring component, and there are two fixing columns.

[0009] The scraping device comprises a lifting component arranged in the column cavity of the fixed column for rotation, and a scraping component for scraping materials adhered to the inner wall of the kettle cavity of the crystallization kettle body is arranged on the right side of the lifting component.

[0010] Furthermore, the driving assembly includes a motor arranged on the top of the crystallization kettle body for rotation, and a gear 1 for driving the stirring assembly to rotate is arranged on the output shaft of the motor.

[0011] Furthermore, the stirring assembly includes a rotating rod arranged in the kettle cavity of the crystallization kettle body for rotation, and the upper part of the rod body of the rotating rod is provided with a gear 2 for meshing connection with the gear 1.

[0012] Furthermore, the adjustment component includes a rotating shaft arranged in the rod body of the rotating rod for rotation, a hand wheel for driving the rotating shaft to rotate is fixedly installed on the top of the rotating shaft, a bevel gear 1 for driving one of the scraping devices to be extended and retracted is arranged on the shaft body of the rotating shaft, and a bevel gear 2 for driving the other scraping device to be extended and retracted is arranged on the shaft body of the rotating shaft, and the bevel gear 2 is located below the bevel gear 1.

[0013] Furthermore, the lifting assembly includes a bevel gear three meshingly connected with the bevel gear one, and a screw for rotation is fixedly mounted on the right end of the bevel gear three.

[0014] Furthermore, the scraping assembly includes a movable plate threadedly connected to the screw rod, and a connecting rod for synchronously extending and retracting with the movable plate is fixedly installed on the right end of the movable plate, and there are four connecting rods, and scrapers for scraping off materials adhered to the inner wall of the kettle cavity of the crystallization kettle body are fixedly installed on the right ends of the four connecting rods.

[0015] Furthermore, a feed port for adding tribromoacetone solution to the kettle cavity of the crystallization kettle body is provided at the top end of the crystallization kettle body, and a discharge port for discharging tribromoacetone crystals is provided at the bottom end of the crystallization kettle body.

[0016] Furthermore, a support leg for supporting the crystallization kettle body is fixedly installed at the bottom end of the crystallization kettle body, and there are four support legs, which are distributed in a linear array at the four corners of the bottom end of the crystallization kettle body.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] By arranging a stirring device, an adjusting device and a scraping device, when it is necessary to evaporate and crystallize the tribromoacetone solution in the crystallization kettle body, it can be checked through an observation window on the crystallization kettle body whether the scraper is in close contact with the inner wall of the crystallization kettle body. If not, the rotating shaft can be driven to rotate by a hand wheel, and the screw can be made to rotate synchronously with the rotating shaft under the meshing connection of the bevel gear 1 and the bevel gear 3; the movable plate can be driven to move rightward, and the scraper can be made to be in close contact with the inner wall of the crystallization kettle body to the right under the connection of four connecting rods, so that it can be avoided that the scraper cannot effectively scrape the inner wall of the crystallization kettle body when it is worn, and the service life of the scraper can be utilized. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a front cross-sectional view of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the stirring device of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the regulating device of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the scraping device of the utility model;

[0024] Figure 6 For this utility model Figure 5 Enlarged view of point A in the middle.

[0025] In the accompanying drawings, the names of the components represented by the reference numerals are listed as follows:

[0026] 100-crystallization kettle body, 001-supporting legs, 002-feeding port, 003-discharging port;

[0027] 200-stirring device, 210-driving assembly, 211-motor, 212-gear 1, 220-stirring assembly, 221-rotating rod, 222-gear 2, 230-stirring rod;

[0028] 300-adjusting device, 310-adjusting assembly, 311-hand wheel, 312-rotating shaft, 313-bevel gear 1, 314-bevel gear 2, 320-fixed column;

[0029] 400-scraping device, 410-lifting assembly, 411-bevel gear three, 412-screw, 420-scraping assembly, 421-moving plate, 422-connecting rod, 423-scraper. DETAILED DESCRIPTION

[0030] The preferred specific implementation methods for implementing the present utility model are described in detail below, and a clear and complete description is made in conjunction with the accompanying drawings.

[0031] See also Figure 1-Figure 6 The utility model provides an evaporation crystallization kettle.

[0032] During the preparation of tribromoacetone, an evaporation crystallization kettle is required to perform evaporation and crystallization operations on the tribromoacetone. However, after long-term use, the existing evaporation crystallization kettle is prone to a large amount of residue adhering to the inner wall, so scrapers 1 and 2 are used to scrape the inner wall and the bottom of the evaporation crystallization kettle to prevent tribromoacetone from adhering to the inner wall and the bottom of the evaporation crystallization kettle during crystallization; therefore, it is necessary to improve it; it includes a crystallization kettle body 100, a stirring device 200 for stirring the tribromoacetone solution is provided in the kettle cavity of the crystallization kettle body 100, a scraping device 400 for scraping the kettle cavity is provided in the kettle cavity of the crystallization kettle body 100, and an adjusting device 300 for controlling the extension and retraction of the scraping device 400 is provided in the rod body of the stirring device 200;

[0033] An observation window is provided on the side of the crystallization kettle body 100 to facilitate observation of the distance between the scraping device 400 and the inner wall of the crystallization kettle body 100; a feed port 002 for adding tribromoacetone solution to the kettle cavity of the crystallization kettle body 100 is provided at the top of the crystallization kettle body 100, so that the operator can add tribromoacetone solution to the crystallization kettle body 100 through the feed port 002, and then evaporate and crystallize the tribromoacetone solution; a discharge port 003 for discharging tribromoacetone crystals is provided at the bottom of the crystallization kettle body 100, so that the operator can discharge tribromoacetone crystals from the crystallization kettle body 100 through the discharge port 003; a support leg 001 for supporting the crystallization kettle body 100 is fixedly installed at the bottom of the crystallization kettle body 100, and there are four support legs 001, and the four support legs 001 are distributed in a linear array at the four corners of the bottom end of the crystallization kettle body 100;

[0034] The stirring device 200 includes a stirring assembly 220 disposed in the kettle cavity of the crystallization kettle body 100 for rotation, a stirring rod 230 for stirring the tribromoacetone solution in the kettle cavity is disposed on the rod body of the stirring assembly 220, and a driving assembly 210 for driving the stirring assembly 220 to rotate is disposed at the top of the crystallization kettle body 100;

[0035] The driving assembly 210 includes a motor 211 disposed on the top of the crystallization kettle body 100 for rotation, and the shaft end of the output shaft of the motor 211 is embedded in the top of the crystallization kettle body 100 through a bearing, and the output shaft of the motor 211 is provided with a gear 212 for driving the stirring assembly 220 to rotate;

[0036] The stirring assembly 220 includes a rotating rod 221 arranged in the kettle cavity of the crystallization kettle body 100 for rotation, and the rod body of the rotating rod 221 and the kettle body of the crystallization kettle body 100 are both inlaid with bearings at the connection point, so as to facilitate the rotation of the rotating rod 221. The stirring rod 230 is welded on the rotating rod 221, and the upper part of the rod body of the rotating rod 221 is provided with a gear 222 for meshing with the gear 1 212. When the operator drives the motor 211 to work, and the gear 1 212 is meshed with the gear 2 222, the rotating rod 221 is synchronously rotated, so that the plurality of stirring rods 230 can be driven to stir the tribromoacetone solution in the kettle cavity of the crystallization kettle body 100, so that the tribromoacetone solution can be quickly evaporated and crystallized;

[0037] The adjusting device 300 includes an adjusting component 310 disposed in the stirring component 220 for rotation. A fixing column 320 is fixedly mounted on the rod body of the stirring component 220. There are two fixing columns 320, and the two fixing columns 320 are symmetrically distributed up and down.

[0038] The adjusting assembly 310 includes a rotating shaft 312 arranged in the rod body of the rotating rod 221 for rotation, and the rotating shaft 312 is connected to the upper and lower ends of the rotating rod 221 through bearings to facilitate the rotation of the rotating shaft 312; a handwheel 311 for driving the rotating shaft 312 to rotate is fixedly installed on the top of the rotating shaft 312, so that when the operator turns the handwheel 311, the rotating shaft 312 can rotate synchronously; a bevel gear 313 for driving one of the scraping devices 400 to extend and retract is arranged on the shaft body of the rotating shaft 312, and a bevel gear 313 for driving the other scraping device 400 to extend and retract is arranged on the shaft body of the rotating shaft 312 The scraping device 400 is retracted by the bevel gear 2 314, and the bevel gear 2 314 is located below the bevel gear 1 313; so that when it is necessary to control the scraping device 400 to approach the inner wall of the crystallization kettle body 100, the rotating shaft 312 can be driven to rotate by the hand wheel 311, and under the meshing connection between the bevel gear 1 313 and the bevel gear 3 411, the lifting component 410 can drive the scraping component 420 to approach and move away from the inner wall of the crystallization kettle body 100, thereby reducing the phenomenon of insufficient cleaning of the inner wall of the crystallization kettle body 100 caused by the wear of the scraper 423 during long-term work;

[0039] The scraping device 400 includes a lifting assembly 410 disposed in the column cavity of the fixed column 320 for rotation, and a scraping assembly 420 for scraping the inner wall of the chamber of the crystallization kettle body 100 is disposed on the right side of the lifting assembly 410;

[0040] The lifting assembly 410 includes a bevel gear 3 411 meshingly connected with the bevel gear 1 313, a screw 412 for rotation is fixedly installed at the right end of the bevel gear 3 411, and a bearing is embedded at the connection between the screw 412 and the fixed column 320, so as to facilitate the rotation of the screw 412;

[0041] The scraping assembly 420 includes a moving plate 421 threadedly connected to the screw 412, and a connecting rod 422 for synchronously extending and retracting with the moving plate 421 is fixedly installed at the right end of the moving plate 421, and there are four connecting rods 422, and the four connecting rods 422 are distributed in a circular array at the right end of the moving plate 421; the right ends of the four connecting rods 422 are fixedly installed with a scraper 423 for scraping the inner wall of the kettle cavity of the crystallization kettle body 100; so that when the tribromoacetone solution in the crystallization kettle body 100 needs to be evaporated and crystallized, the scraper can be viewed through the observation window on the crystallization kettle body 100 Whether 423 is in close contact with the inner wall of the crystallization kettle body 100, if not, the rotating shaft 312 can be driven to rotate by the hand wheel 311, and under the meshing connection between the bevel gear 1 313 and the bevel gear 3 411, the screw 412 can be made to rotate synchronously with the rotating shaft 312; the movable plate 421 can be driven to move to the right, and under the connection of the four connecting rods 422, the scraper 423 is made to be in close contact with the inner wall of the crystallization kettle body 100 to the right, so as to avoid the scraper 423 from being unable to effectively scrape the inner wall of the crystallization kettle body 100 when it is worn, and the service life of the scraper 432 can be extended.

[0042] Based on the above content and the accompanying drawings, those skilled in the art can understand and implement the utility model. In addition, any non-creative modifications made to the utility model by those skilled in the art without making creative work still fall within the scope of protection of the utility model.

Claims

1. An evaporation crystallization kettle, comprising a crystallization kettle body (100), characterized in that: A stirring device (200) for stirring the tribromoacetone solution is arranged in the kettle cavity of the crystallization kettle body (100), a scraping device (400) for scraping the inside of the kettle cavity is arranged in the kettle cavity of the crystallization kettle body (100), and an adjusting device (300) for controlling the extension and retraction of the scraping device (400) is arranged in the rod body of the stirring device (200); The stirring device (200) comprises a stirring assembly (220) arranged in the kettle cavity of the crystallization kettle body (100) for rotation, a stirring rod (230) for stirring the tribromoacetone solution in the kettle cavity is arranged on the rod body of the stirring assembly (220), and a driving assembly (210) for driving the stirring assembly (220) to rotate is arranged at the top end of the crystallization kettle body (100); The regulating device (300) comprises an regulating component (310) arranged in the stirring component (220) for rotation, and a fixing column (320) is fixedly mounted on the rod body of the stirring component (220), and there are two fixing columns (320); The scraping device (400) comprises a lifting component (410) arranged in the column cavity of the fixed column (320) for rotation, and a scraping component (420) for scraping off materials adhered to the inner wall of the chamber of the crystallization kettle body (100) is arranged on the right side of the lifting component (410).

2. An evaporation crystallization kettle according to claim 1, characterized in that: The driving assembly (210) comprises a motor (211) arranged on the top of the crystallization kettle body (100) for rotation, and a gear 1 (212) for driving the stirring assembly (220) to rotate is arranged on the output shaft of the motor (211).

3. An evaporation crystallization kettle according to claim 2, characterized in that: The stirring assembly (220) comprises a rotating rod (221) arranged in the kettle cavity of the crystallization kettle body (100) for rotation, and a gear 2 (222) for meshing connection with the gear 1 (212) is arranged on the upper part of the rod body of the rotating rod (221).

4. An evaporation crystallization kettle according to claim 3, characterized in that: The adjustment assembly (310) comprises a rotating shaft (312) arranged in a rod body of a rotating rod (221) for rotation, a hand wheel (311) for driving the rotating shaft (312) to rotate is fixedly mounted on the top end of the rotating shaft (312), a bevel gear 1 (313) for driving one of the scraping devices (400) to extend and retract is arranged on the shaft body of the rotating shaft (312), and a bevel gear 2 (314) for driving the other scraping device (400) to extend and retract is arranged on the shaft body of the rotating shaft (312), and the bevel gear 2 (314) is located below the bevel gear 1 (313).

5. An evaporation crystallization kettle according to claim 4, characterized in that: The lifting assembly (410) comprises a bevel gear three (411) meshingly connected with the bevel gear one (313), and a screw rod (412) for rotation is fixedly mounted on the right end of the bevel gear three (411).

6. An evaporation crystallization kettle according to claim 5, characterized in that: The scraping assembly (420) comprises a moving plate (421) threadedly connected to the screw rod (412), and a connecting rod (422) for synchronously extending and retracting with the moving plate (421) is fixedly mounted on the right end of the moving plate (421), and there are four connecting rods (422), and a scraper (423) for scraping off materials adhered to the inner wall of the kettle cavity of the crystallization kettle body (100) is fixedly mounted on the right end of the four connecting rods (422).

7. An evaporation crystallization kettle according to claim 1, characterized in that: The top end of the crystallization kettle body (100) is provided with a feed port (002) for adding tribromoacetone solution into the kettle cavity of the crystallization kettle body (100), and the bottom end of the crystallization kettle body (100) is provided with a discharge port (003) for discharging tribromoacetone crystals.

8. An evaporation crystallization kettle according to claim 7, characterized in that: A support leg (001) for supporting the crystallization kettle body (100) is fixedly mounted at the bottom of the crystallization kettle body (100), and there are four support legs (001). The four support legs (001) are distributed in a linear array at the four corners of the bottom of the crystallization kettle body (100).

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