CN216063261U

CN216063261U - Chlorination reation kettle is used in nicotinamide preparation

Info

Publication number: CN216063261U
Application number: CN202122370974.7U
Authority: CN
Inventors: 金开洋; 王岩; 岳以琛; 庄高
Original assignee: Jiangsu Yingsheng Chemical Co ltd
Current assignee: Jiangsu Yingsheng Chemical Co ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-03-18
Anticipated expiration: 2031-09-29

Abstract

The utility model discloses a chlorination reaction kettle for nicotinamide preparation, which relates to the technical field of chemical production and comprises supporting legs, a tank body, supporting circular plates, a reaction shaft, a filter column and a filter arc plate, wherein the top of each supporting leg is fixedly connected with the bottom of the tank body, and the supporting circular plate is fixedly connected with the middle part of the inner wall of the tank body close to the lower side. According to the utility model, when the 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide is subjected to chlorination reaction, the 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide needs to be stirred through the reaction shaft, the connecting rod is fixed on the surface of the reaction shaft, the position of the scraping rod is fixed through the connecting rod, the scraping sheet on the scraping rod is attached to the inner wall of the tank body, the reaction shaft drives the scraping sheet to rotate on the inner wall of the tank body while the reaction shaft rotates and stirs, the liquid and solid of the chlorinated 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide are cleaned, and the cleaned liquid and solid are sent to the bottom of the filtering arc plate, so that materials are saved, and the tank body is convenient to clean after being used.

Description

Chlorination reation kettle is used in nicotinamide preparation

Technical Field

The utility model relates to a chlorination reaction kettle, relates to the technical field of chemical production, and particularly relates to a chlorination reaction kettle for preparing nicotinamide.

Background

An important intermediate for synthesizing the herbicide diflufenican, which is a chemical, belongs to carotenoid biosynthesis inhibitors and is a broad-spectrum selective wheat field herbicide.

The following problems exist in the prior art:

1. when the reaction kettle performs chlorination reaction on the 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide, a large amount of liquid, solid and the like after chlorination of the 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide are attached to the wall of the reaction kettle, so that subsequent cleaning trouble and material waste are caused;

2. the stirred liquid of 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide still contains a large amount of impurities, and if the liquid is discharged for use without filtration, the use effect of the liquid can be influenced, thereby causing unnecessary troubles.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

the utility model provides a chlorination reation kettle is used in nicotinamide preparation, includes spike, the jar body, supports plectane, reaction shaft, filters the post and filters the arc board, the top of spike and the bottom fixed connection of the jar body, downside fixedly connected with supports the plectane by the inner wall middle part of the jar body, the top axle center department of the jar body rotates and is connected with the reaction shaft, the left end bottom fixedly connected with of the jar body filters the post, the inner wall middle part fixedly connected with of the jar body filters the arc board.

The reaction shaft comprises a connecting rod, a bottom stirring rod and a stirring rod, the surface of the reaction shaft is fixedly connected with the connecting rod, the bottom of the connecting rod is longitudinally and fixedly connected with the bottom stirring rod, and the transverse surface of the connecting rod is fixedly connected with the stirring rod.

The filter column comprises a filter screen, a filter layer and a leakage-proof gasket, the inner wall of the filter column is movably connected with the filter screen, the inner wall of the filter screen is movably connected with the filter layer, and the left end of the filter layer is movably connected with the leakage-proof gasket.

The technical scheme of the utility model is further improved as follows: the top of the jar body leans on left end fixedly connected with chlorine to advance the pipe, the bottom axle center fixedly connected with discharging pipe of the jar body, the top axle center fixedly connected with motor of the jar body, the top of the jar body leans on right side fixedly connected with inlet pipe.

The technical scheme of the utility model is further improved as follows: the inner wall of the supporting circular plate is fixedly connected with a supporting plate, the axle center of the supporting plate is fixedly connected with a bearing, and the axle center of the bearing is fixedly connected with a reaction shaft.

The technical scheme of the utility model is further improved as follows: and a supporting circular plate is arranged at the bottom of the filtering arc plate, and the bottom of the supporting circular plate is fixedly connected with the top of the right end of the filtering column.

The technical scheme of the utility model is further improved as follows: the surface fixed connection of connecting rod scrapes the material pole, the fixed surface of scraping the material pole is connected with scrapes the tablet.

The technical scheme of the utility model is further improved as follows: the left end fixedly connected with arm-tie of leak protection packing ring, the left end fixedly connected with handle of arm-tie, the arm-tie passes through screw swing joint with filtering the post.

Due to the adoption of the technical scheme, compared with the prior art, the utility model has the technical progress that:

1. the utility model provides a chlorination reaction kettle for preparing nicotinamide, which is characterized in that when 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide is subjected to chlorination reaction, the nicotinamide needs to be stirred by a reaction shaft, a connecting rod is fixed on the surface of the reaction shaft, the position of a scraping rod is fixed by the connecting rod, a scraping sheet on the scraping rod is attached to the inner wall of a tank body, the reaction shaft drives the scraping sheet to rotate on the inner wall of the tank body while the reaction shaft rotates and stirs, liquid and solid of the chlorinated 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide are cleaned, and the cleaned liquid and solid are sent to the bottom of a filtering arc plate, so that materials are saved, and the tank body is convenient to clean after being used.

2. The utility model provides a chlorination reaction kettle for preparing nicotinamide, wherein chlorinated 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide can enter a supporting circular plate from a filtering arc plate, a filtering column is arranged at the bottom of the supporting circular plate, when liquid enters the filtering column, impurities on the liquid are adsorbed by a filtering layer, so that more impurities are filtered, after the filtering layer is used, a screw at the left end of the filtering layer is detached, a filter screen can be drawn out by a handle, and the filtering layer is replaced and washed.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic top view of the supporting disk of the present invention;

FIG. 3 is a schematic view of the structure of a reaction shaft according to the present invention;

fig. 4 is a partially enlarged schematic structural view of the filter column of the present invention.

In the figure: 1. a brace; 2. a tank body; 21. chlorine gas inlet pipe; 22. a discharge pipe; 23. a motor; 24. a feed pipe; 3. a supporting circular plate; 31. a support plate; 32. a bearing; 4. a reaction shaft; 41. a connecting rod; 42. a bottom stirring rod; 43. a stirring rod; 44. a scraping rod; 45. scraping a material sheet; 5. a filtration column; 51. filtering with a screen; 52. a filtering layer; 53. a leak-proof gasket; 54. pulling a plate; 55. a handle; 56. a screw; 6. and (4) filtering the arc plate.

Detailed Description

The present invention will be described in further detail with reference to the following examples:

example 1

As shown in figures 1-4, the utility model provides a chlorination reaction kettle for nicotinamide preparation, which comprises a supporting foot 1, a tank body 2, a supporting circular plate 3, a reaction shaft 4, a filter column 5 and a filter arc plate 6, wherein the top of the supporting foot 1 is fixedly connected with the bottom of the tank body 2, the supporting circular plate 3 is fixedly connected with the lower side of the middle part of the inner wall of the tank body 2 and is used for supporting the bottom of the reaction shaft 4, the top axis of the tank body 2 is rotatably connected with the reaction shaft 4, the bottom of the left end of the tank body 2 is fixedly connected with the filter column 5 and is used for filtering chlorinated impurities, the filter arc plate 6 is fixedly connected with the middle part of the inner wall of the tank body 2 and is used for intercepting 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide which is not completely stirred, and solid impurities are stirred and then flow out together with water through a hole at the bottom of the filter arc plate 6.

As shown in fig. 1-4, in this embodiment, preferably, a chlorine inlet pipe 21 is fixedly connected to the top of the tank 2 near the left end for feeding chlorine, a discharge pipe 22 is fixedly connected to the bottom axis of the tank 2, filtered 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide flows out from the discharge pipe 22, a motor 23 is fixedly connected to the top axis of the tank 2, the motor 23 drives the reaction shaft 4 to stir 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide, a feed pipe 24 is fixedly connected to the top of the tank 2 near the right end, and water and 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide are respectively introduced into the feed pipe 24, and a gasket is provided on the feed pipe 24 to prevent air leakage.

As shown in fig. 1-4, preferably, a supporting plate 31 is fixedly connected to an inner wall of the supporting circular plate 3, a bearing 32 is fixedly connected to an axis of the supporting plate 31 for placing the reaction shaft 4, the axis of the bearing 32 is fixedly connected to the reaction shaft 4, the supporting circular plate 3 is disposed at the bottom of the filtering arc plate 6, the filtering arc plate 6 flows out from a position spaced between the supporting plates 31 after stirring, and the bottom of the supporting circular plate 3 is fixedly connected to the top of the right end of the filtering column 5, so as to facilitate impurity filtering.

Example 2

As shown in fig. 1 to 4, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the reaction shaft 4 comprises a connecting rod 41, a bottom stirring rod 42 and a stirring rod 43, the connecting rod 41 is fixedly connected to the surface of the reaction shaft 4, the bottom stirring rod 42 is fixedly connected to the bottom longitudinal surface of the connecting rod 41, 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide which is not stirred is arranged at the bottom of the stirring filtering arc plate 6, the stirring rod 43 is fixedly connected to the transverse surface of the connecting rod 41 and is used for stirring, the scraping rod 44 is fixedly connected to the surface of the connecting rod 41, the scraping rod 44 rotates along the inner wall of the tank body 2, the scraping sheet 45 is fixedly connected to the surface of the scraping rod 44, and the scraping sheet 45 cleans the 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide attached to the inner wall of the tank body 2.

Example 3

As shown in fig. 1 to 4, on the basis of embodiment 1, the present invention provides a technical solution: preferably, filter column 5 includes filter screen 51, filter layer 52 and leak protection packing ring 53, the inner wall swing joint of filter column 5 has filter screen 51, the position of fixed filter layer 52, the inner wall swing joint of filter screen 51 has filter layer 52, be used for adsorbing impurity, the left end swing joint of filter layer 52 has leak protection packing ring 53, prevent the inside gas of jar body 2 from running out, the left end fixedly connected with arm-tie 54 of leak protection packing ring 53, be convenient for pull out, the left end fixedly connected with handle 55 of arm-tie 54, arm-tie 54 passes through screw 56 swing joint with filter column 5, can dismantle filter layer 52 through dismantling screw 56 and change and wash.

The working principle of the chlorination reaction kettle for preparing nicotinamide is described in detail below.

As shown in figures 1-4, when in use, the feeding pipe 24 is firstly opened, then 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide and water are fed into the interior of the tank body 2, the motor 23 is simultaneously opened, after the feeding is finished, the feeding pipe 24 is closed, chlorine gas is fed into the interior of the tank body 2 from the chlorine feeding pipe 21, the chlorine gas and the 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide are combined, then the stirred 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide enters the bottom of the filtering arc plate 6, if 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide which is not completely dissolved exists, the stirring is carried out by the bottom stirring rod 42, and finally, the 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide after stirring passes through a filter column 5, the 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide is subjected to impurity filtration by a filter layer 52 after the 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide is stirred out of the circular hole at the bottom of the filtering arc plate 6, and then the filtered 2-chloro-3-N- (2, 4-difluorophenyl) nicotinamide enters the bottom of the tank body 2 and is discharged by a discharge pipe 22, and after the discharge is finished, a filter screen 51 is drawn out by a disassembling screw 56 to replace and clean the filter layer 52.

The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the utility model without departing from the spirit of the inventive concept.

Claims

1. The utility model provides a chlorination reation kettle is used in nicotinamide preparation, includes spike (1), jar body (2), support plectane (3), reaction shaft (4), filters post (5) and filters arc board (6), its characterized in that: the top of the supporting foot (1) is fixedly connected with the bottom of the tank body (2), the middle part of the inner wall of the tank body (2) is fixedly connected with a supporting circular plate (3) by the lower side, the top axle center of the tank body (2) is rotatably connected with a reaction shaft (4), the bottom of the left end of the tank body (2) is fixedly connected with a filter column (5), and the middle part of the inner wall of the tank body (2) is fixedly connected with a filter arc plate (6);

the reaction shaft (4) comprises a connecting rod (41), a bottom stirring rod (42) and a stirring rod (43), the surface of the reaction shaft (4) is fixedly connected with the connecting rod (41), the bottom longitudinal surface of the connecting rod (41) is fixedly connected with the bottom stirring rod (42), and the transverse surface of the connecting rod (41) is fixedly connected with the stirring rod (43);

filter post (5) and include filter screen (51), filter layer (52) and leak protection packing ring (53), the inner wall swing joint that filters post (5) has filter screen (51), the inner wall swing joint of filter screen (51) has filter layer (52), the left end swing joint of filter layer (52) has leak protection packing ring (53).

2. The chlorination reaction kettle for nicotinamide preparation according to claim 1, wherein: the top of the jar body (2) leans on left end fixedly connected with chlorine to advance pipe (21), the bottom axle center department fixedly connected with discharging pipe (22) of the jar body (2), the top axle center department fixedly connected with motor (23) of the jar body (2), the top of the jar body (2) leans on right side fixedly connected with inlet pipe (24).

3. The chlorination reaction kettle for nicotinamide preparation according to claim 1, wherein: the inner wall fixedly connected with backup pad (31) of support plectane (3), the axle center department fixedly connected with bearing (32) of backup pad (31), the axle center department fixedly connected with of bearing (32) has reaction shaft (4).

4. The chlorination reaction kettle for nicotinamide preparation according to claim 1, wherein: the bottom of the filtering arc plate (6) is provided with a supporting circular plate (3), and the bottom of the supporting circular plate (3) is fixedly connected with the top of the right end of the filtering column (5).

5. The chlorination reaction kettle for nicotinamide preparation according to claim 1, wherein: the surface of the connecting rod (41) is fixedly connected with a scraping rod (44), and the surface of the scraping rod (44) is fixedly connected with a scraping sheet (45).

6. The chlorination reaction kettle for nicotinamide preparation according to claim 1, wherein: the left end of the leakage-proof gasket (53) is fixedly connected with a pulling plate (54), the left end of the pulling plate (54) is fixedly connected with a handle (55), and the pulling plate (54) is movably connected with the filter column (5) through a screw (56).