Feed mixing device for synthesizing chloropyridine compound

Abstract

The utility model discloses a feed mixing device for synthesizing a chloropyridine compound, which belongs to the technical field of chemical production equipment and comprises a box body, three material pipes which are uniformly arranged at equal intervals are arranged at the top of the box body, and electromagnetic valves with control are arranged on the outer sides of the three material pipes; the barrel body is used for uniformly mixing raw materials during production of chloropyridine, the barrel body is integrally made of high-transmittance tempered glass, a through type connecting column is arranged on the side wall of the barrel body, a one-way valve for preventing leakage of the raw materials is arranged in the connecting column, a rotating shaft is connected to the side wall of the barrel body, and the end part of the rotating shaft is rotationally connected with the inner wall of the box body; the side wall of the feeding pipe is connected with the connecting column in a sliding mode, and the other end of the feeding pipe is communicated with the material pipe through a telescopic corrugated pipe which is communicated with the feeding pipe. According to the utility model, the ultraviolet light source and the reaction kettle can be fully illuminated, the raw materials can be fully mixed, and the mixing and production efficiency of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of chemical production equipment, and in particular to a feeding and mixing device for the synthesis of chloropyridine compounds. Background Technology

[0002] Chloropyridine is a toxic liquid produced by reacting pyridine and chlorine gas under ultraviolet light. Chloropyridine compounds are widely used as intermediates in pharmaceuticals and pesticides. Existing chloropyridine production equipment uses a metered feeding and mixing method to ensure a high reaction rate and minimize byproduct formation. Because the ultraviolet light source is typically located on one side of the equipment, the mixing and reaction rate of pyridine and chlorine gas inside the unit are slow, resulting in a long production time.

[0003] A search revealed, for example (Authorization Announcement No. CN206535442U), a feeding and mixing device for the synthesis of chloropyridine compounds, comprising a raw material mixer, a feed pipe I, a side feed pipe, and a reactor feed pipe; the top of the raw material mixer is connected to the feed pipe I, through which pyridine compounds enter the raw material mixer; a side feed port is opened on the upper part of the side wall of the raw material mixer, and a side feed pipe is welded to the side feed port, through which chlorine gas enters the raw material mixer; the bottom of the raw material mixer is connected to the reactor feed pipe, and after the pyridine compounds and chlorine gas are mixed in the raw material mixer, they enter the reactor through the reactor feed pipe for reaction. This device solves the problem of different reaction ratios in existing equipment, resulting in more by-products. However, because the position of the ultraviolet light source is fixed during the reaction, the projection rate inside the reactor is slow, reducing the production efficiency of the device. Utility Model Content

[0004] The purpose of this invention is to provide a feed mixing device for the synthesis of chloropyridine compounds, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a feed mixing device for the synthesis of chloropyridine compounds, comprising:

[0006] The box body has three evenly spaced material pipes on the top, and each of the three material pipes has a solenoid valve with control on the outside.

[0007] The barrel is used for uniform mixing of raw materials during the production of chloropyridine. The barrel is made of high-transparency tempered glass. The side wall of the barrel is equipped with a through-type connecting column. The inside of the connecting column is equipped with a one-way valve for preventing raw material leakage. The side wall of the barrel is connected to a rotating shaft, and the end of the rotating shaft is rotatably connected to the inner wall of the box.

[0008] The feed pipe has its side wall slidably connected to the connecting column, and the other end of the feed pipe is connected to the feed pipe through a retractable corrugated pipe.

[0009] As a preferred embodiment, a drive motor that provides power is screwed to one side of the housing, and the output shaft of the drive motor passes through the side wall of the housing and is connected to the rotating shaft through a coupling.

[0010] As a preferred embodiment, the inner wall of the housing is connected to four linear motors of the same model. The moving parts of the four linear motors are welded to the same hollow connecting plate, and the side wall of the connecting plate is movably connected to the inner wall of the housing.

[0011] As a preferred embodiment, the inner bottom wall of the box is detachably connected to an installation plate, and the top of the installation plate is provided with several ultraviolet lamps arranged at equal intervals, and the ultraviolet lamps are not connected to the box body.

[0012] As a preferred embodiment, the top of the connecting plate is connected to the corrugated pipe, and the other end of the corrugated pipe is connected to the material pipe that runs through the box.

[0013] As a preferred embodiment, the bottom of the connecting plate is connected to the feed pipe, and the end of the feed pipe passes through the end of the corrugated pipe of the connecting plate.

[0014] As a preferred embodiment, the box body has a hinged door on one side, and the opposite side of the door has a groove to facilitate opening and closing.

[0015] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0016] This feeding and mixing device for the synthesis of chloropyridine compounds features a through-type connecting column on the side wall of the tank. A one-way valve is located in the middle of the connecting column. The one-way valve prevents the raw materials added inside the tank from becoming misaligned. A linear motor and a connecting plate fixed to the moving part of the linear motor drive the connected feed pipe to the connecting column, completing the feeding of the raw materials into the tank via the corrugated pipe. Furthermore, the linear motor effectively prevents contact between the tank and the connecting plate during tank rotation, improving the practicality of the device.

[0017] This feeding and mixing device for the synthesis of chloropyridine compounds features a barrel made entirely of high-strength tempered glass. An mounting plate is fixed to the inner bottom wall of the barrel and connected to an ultraviolet lamp. Rotating shafts are located on both sides of the barrel, rotatably connected to the inner wall of the barrel. A drive motor, providing power, is screwed to one side of the barrel. The output shaft of the drive motor passes through the side wall of the barrel and is connected to the rotating shaft via a coupling. Controlling the rotation of the drive motor's output shaft causes the connected barrel to rotate inside the barrel, ensuring uniform irradiation by the ultraviolet lamp. Combined with the barrel's rotation, this ensures uniform mixing of the raw materials inside the barrel, improving the device's production efficiency.

[0018] This device solves the problem that existing equipment cannot ensure that all reaction units receive ultraviolet light sources, thus improving the production efficiency of the device. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the feeding and mixing device for the synthesis of chloropyridine compounds according to the present invention.

[0021] Figure 2 For practical purposes Figure 1 Sectional view of the box body in the AA direction;

[0022] Figure 3 This is a schematic diagram of the linear motor connection structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the connecting plate of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the barrel body of this utility model;

[0025] Figure 6 This is a schematic diagram of the connection between the connecting column and the feed pipe of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] In the diagram: 1. Box body; 2. Box door; 3. Drive motor; 4. Material pipe; 5. Connecting plate; 6. Rotating shaft; 7. Barrel body; 8. Mounting plate; 9. Ultraviolet lamp; 10. Linear motor; 11. Bellows; 12. Feed pipe; 13. Connecting column; 14. One-way valve. Detailed Implementation

[0028] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0029] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0030] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0031] An embodiment of a feed mixing apparatus for the synthesis of chloropyridine compounds, such as... Figures 1 to 6 As shown, chloropyridine reacts with chlorine gas under ultraviolet light. To increase the reaction rate and reduce the generation of byproducts, the pyridine is usually diluted. Therefore, this application includes three feed tubes 4 for feeding the raw material, including:

[0032] The box body 1 has a hinged door 2 on one side. The opposite side of the door 2 has a groove to facilitate opening and closing. The groove makes it easier to open and close the door 2. The top of the box body 1 has three evenly spaced material pipes 4. In order to ensure that the raw materials entering the box body 1 through the three material pipes 4 react quickly and completely, corresponding metering valves can be installed on the conveying pipes connected to the material pipes 4. The metering valves can be set to control the speed at which different raw materials enter the box body 1 under the action of the external microcomputer, i.e., single-chip microcomputer. The outer side of each of the three material pipes 4 is equipped with a solenoid valve with control. The solenoid valves can effectively stop the output of raw materials and facilitate operation.

[0033] The barrel 7 is used for uniform mixing of raw materials during the production of chloropyridine. The barrel 7 is made of high-transparency tempered glass. The barrel 7 has high structural strength, high hardness, high temperature resistance and corrosion resistance. The side wall of the barrel 7 is provided with a through-type connecting column 13. The inside of the connecting column 13 is provided with a one-way valve 14 for preventing raw material leakage. The one-way valve 14 can prevent the raw materials inside the barrel 7 from leaking through the connecting column 13, thereby improving the safety of the device.

[0034] A rotating shaft 6 is connected to the side wall of the barrel 7. The end of the rotating shaft 6 is rotatably connected to the inner wall of the box 1. A drive motor 3 that provides power is screwed to the outside of the box 1. The output shaft of the drive motor 3 passes through the side wall of the box 1 and is connected to one end of the rotating shaft 6. By controlling the rotation of the output shaft of the drive motor 3, the connected barrel 7 is driven to rotate inside the box 1, so that the raw materials inside the barrel 7 can be fully mixed.

[0035] Feed pipe 12, the side wall of feed pipe 12 is slidably connected to connecting column 13, the other end of feed pipe 12 is connected to material pipe 4 through a connecting, expandable corrugated pipe 11, four linear motors 10 are installed inside the box 1, the moving parts of the four linear motors 10 are connected to the same connecting plate 5, the connecting plate 5 is hollow, of course the internal structure of the connecting plate 5 can be selected according to the actual situation. If it is hollow, the connecting plate 5 is provided with a partition in the middle. The partition and the connecting plate 5 are integrally formed, which can effectively prevent the leakage of raw materials. In order to reduce the risk of raw material leakage, a solid connecting plate 5 can be used.

[0036] A retractable corrugated pipe 11 is connected to the top of the connecting plate 5. The end of the corrugated pipe 11 is connected to the material pipe 4 that penetrates the top of the box 1. A feed pipe 12 is connected to the bottom of the connecting plate 5. The end of the feed pipe 12 is connected to the corrugated pipe 11 that penetrates the connecting plate 5. This allows the connecting plate 5 to flexibly adjust its position inside the box 1 under the action of the linear motor 10 and the corrugated pipe 11, thereby facilitating the delivery of raw materials to the inside of the barrel 7.

[0037] An installation plate 8 is provided on the inner bottom wall of the box 1. The installation plate 8 is detachably connected to the inner bottom wall of the box 1. Several ultraviolet lamps 9 are installed on the top of the installation plate 8 at equal intervals. The arrangement of the ultraviolet lamps 9, together with the rotating barrel 7 inside the box 1, can effectively accelerate the mixing and reaction of the raw materials inside the barrel 7, thereby improving the reaction rate of the device.

[0038] Because the barrel 7 is rotating, in order to ensure that the feed pipe 12 aligns with the connecting column 13 each time, an infrared instrument capable of docking is set on the top of the box 1 and the horizontal line of the connecting column 13. In conjunction with the set microcomputer, the rotation of the barrel 7 is controlled so that the connecting column 13 is aligned with the feed pipe 12 each time the barrel 7 stops rotating, which is convenient for use.

[0039] Furthermore, the barrel 7 can be detached from the inner wall of the box 1, and a discharge pipe for product discharge is provided on the side wall of the barrel 7, so that the product inside the barrel 7 can be easily removed after the reaction is completed.

[0040] The drive motor 3, ultraviolet lamp 9, one-way valve 14, and linear motor 10 are all conventional instruments. Their working principles, dimensions, and models are irrelevant to the function of this application, so they will not be described in detail. The control method of this utility model is controlled by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0041] Working principle

[0042] The feeding and mixing device for the synthesis of chloropyridine compounds is used in this way. The conveying pipe is connected to the feed pipe 4 respectively. The raw material is conveyed into the inside of the box 1 through the solenoid valve. Under the action of the bellows 11 and the connecting plate 5, the incoming raw material is stored. At the same time, the moving part of the linear motor 10 is controlled to move, which drives the fixed connecting plate 5 to move inside the box 1. The feed pipe 12 fixed at the bottom of the connecting plate 5 is connected to the connecting column 13 until the feed pipe 12 opens the one-way valve 14 and stops the movement of the linear motor 10.

[0043] At this time, the raw materials inside the connecting plate 5 are transported to the inside of the barrel 7 to complete the raw material filling port. The linear motor 10 is controlled to drive the connecting plate 5 to move towards the inner top wall of the box 1. The output shaft of the drive motor 3 is controlled to rotate, and the ultraviolet lamp 9 set on the top of the mounting plate 8 is lit, so that the raw materials inside the barrel 7 are mixed and reacted until the production of the obtained product is completed.

[0044] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A feed mixing apparatus for the synthesis of chloropyridine compounds, comprising: The box body (1) has three material pipes (4) evenly spaced at the top, and each of the three material pipes (4) has a solenoid valve with control on its outer side. The barrel (7) used for uniform mixing of raw materials during the production of chloropyridine is made of tempered glass with high light transmittance. The side wall of the barrel (7) is provided with a through-type connecting column (13). The inside of the connecting column (13) is provided with a one-way valve (14) for preventing raw material leakage. The side wall of the barrel (7) is connected to a rotating shaft (6). The end of the rotating shaft (6) is rotatably connected to the inner wall of the box (1). The feed pipe (12) has its side wall slidably connected to the connecting column (13), and the other end of the feed pipe (12) is connected to the feed pipe (4) through a retractable corrugated pipe (11).

2. The feed mixing apparatus for the synthesis of chloropyridine compounds according to claim 1, characterized in that: A drive motor (3) that provides power is screwed to one side of the housing (1). The output shaft of the drive motor (3) passes through the side wall of the housing (1) and is connected to the rotating shaft (6) through a coupling.

3. The feed mixing apparatus for the synthesis of chloropyridine compounds according to claim 2, characterized in that: The inner wall of the housing (1) is connected to four linear motors (10) of the same model. The moving parts of the four linear motors (10) are welded to the same hollow connecting plate (5). The side wall of the connecting plate (5) is movably connected to the inner wall of the housing (1).

4. The feed mixing apparatus for the synthesis of chloropyridine compounds according to claim 3, characterized in that: The inner bottom wall of the box (1) is detachably connected to an installation plate (8), and the top of the installation plate (8) is provided with several ultraviolet lamps (9) arranged at equal intervals. The several ultraviolet lamps (9) are not connected to the barrel (7).

5. The feed mixing apparatus for the synthesis of chloropyridine compounds according to claim 3, characterized in that: The top of the connecting plate (5) is connected to the corrugated pipe (11), and the other end of the corrugated pipe (11) is connected to the material pipe (4) that passes through the box body (1).

6. The feed mixing apparatus for the synthesis of chloropyridine compounds according to claim 5, characterized in that: The bottom of the connecting plate (5) is connected to the feed pipe (12), and the end of the feed pipe (12) passes through the end of the corrugated pipe (11) of the connecting plate (5).

7. A feed mixing apparatus for the synthesis of chloropyridine compounds according to claim 5, characterized in that: The box body (1) has a hinged door (2) on one side, and the opposite side of the door (2) has a groove to facilitate opening and closing.

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