A high-efficiency mixing device for materials in a benzohydroxamic acid reaction kettle

Abstract

This invention discloses a high-efficiency mixing device for materials in a benzoyl hydroxamic acid reactor, belonging to the field of material mixing and reaction technology. It includes a support base and a reactor body connected to it via a support frame. The upper end of the reactor body has a feed inlet, and the lower end has a discharge outlet. A valve for controlling the opening and closing of the discharge outlet is installed. A servo motor is mounted on the upper end of the reactor body via a motor frame, and a shaft tube is installed on the drive end of the servo motor. This invention not only achieves transverse stirring by synchronously rotating the shaft tube and the stirring tube, but also changes the radius of transverse stirring, thereby improving stirring efficiency. Furthermore, it achieves longitudinal stirring through the rotation of the gas-dispersing impeller, further enhancing stirring efficiency. Simultaneously, during the stirring process, an inert gas at a certain temperature can be introduced into the reactor, thereby changing the reaction temperature within the reactor and contributing to improving the efficiency and effectiveness of the benzoyl hydroxamic acid synthesis reaction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of material mixing reaction, in particular to a high-efficiency material mixing device in a benzohydroxamic acid reaction kettle. BACKGROUND

[0002] The benzohydroxamic acid reaction kettle is mainly used for benzohydroxamic acid synthesis reaction, and is generally equipped with a stirring structure to improve the efficiency of material mixing in the reaction kettle, so as to more efficiently perform the reaction.

[0003] The existing benzohydroxamic acid reaction kettle mixing material mixing device has poor stirring efficiency during use. For example, the published material mixing and stirring reaction kettle (CN217989318U) only has a stirring structure that can turn to improve the uniformity of stirring, but it can only stir horizontally and cannot stir vertically, which leads to a long time required to stir the material uniformly, resulting in low stirring efficiency.

[0004] In addition, the existing benzohydroxamic acid synthesis reaction process needs to be controlled stably, and the conventional reaction kettle stirring device cannot control the temperature of the material, which easily leads to a decrease in the efficiency and effect of benzohydroxamic acid synthesis reaction, and is not conducive to the synthesis of benzohydroxamic acid.

[0005] Therefore, a high-efficiency material mixing device in a benzohydroxamic acid reaction kettle is needed to solve the above problems. SUMMARY

[0006] The present application aims to provide a high-efficiency material mixing device in a benzohydroxamic acid reaction kettle to solve the problem of poor stirring efficiency of the existing benzohydroxamic acid reaction kettle mixing material mixing device and the inability to control the reaction temperature.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0008] The utility model provides a kind of benzohydroxamic acid reaction kettle material high-efficiency mixing device, including support seat and the kettle body being connected by support frame, the upper end of the kettle body is provided with feed inlet, and the lower end of kettle body is provided with discharge port, valve for controlling its opening and closing is installed on discharge port, the upper end of the kettle body is installed with servo motor by motor bracket, and the driving end of servo motor is installed with shaft tube, the lower end of the shaft tube is penetrated to the inside of kettle body, and the sealing bearing is connected between kettle body and shaft tube, the part of shaft tube that extends into kettle body is provided with stirring pipe on equal interval, and reciprocating longitudinal stirring mechanism is provided on stirring pipe, the stirring pipe is also provided with temperature control mechanism, and temperature control mechanism includes gas cylinder and temperature control equipment fixedly arranged on the upper surface of support seat, inert gas is stored in gas cylinder, control panel is installed on support frame, and servo motor and temperature control equipment are electrically connected with control panel.

[0009] Preferably, the shaft tube is connected with the stirring pipe, and the inner diameter of the shaft tube is larger than that of the stirring pipe.

[0010] Preferably, the reciprocating longitudinal stirring mechanism includes a rack plate arranged in each stirring pipe, and the two ends of the rack plate are respectively penetrated through the two ends of the corresponding stirring pipe, all the rack plates are fixedly connected to the connecting rods on the same side at the same end, and the connecting rods are provided with folding pipes between one end close to the stirring pipe and the other end.

[0011] Preferably, the reciprocating longitudinal stirring mechanism further includes a pressure guide block fixedly connected to the inner side of the kettle body, and the transverse section of the pressure guide block is an isosceles triangle, and the side surface of the connecting rod close to the inner side of the kettle body is a smooth hemispherical surface, facilitating smooth contact between the connecting rod and the pressure guide block.

[0012] Preferably, the temperature control mechanism further includes a gas conveying pipe arranged between the gas cylinder and the temperature control equipment, and the lower end of the one-way gas guide pipe is connected to the temperature control equipment, the inner top end of the kettle body is provided with a gas storage cavity, and the gas storage cavity is penetrated by the shaft tube, and the shaft tube and the gas storage cavity are also connected by a sealing bearing, the upper end of the one-way gas guide pipe is connected to the gas storage cavity, the top end of the kettle body is provided with a one-way gas discharge hole penetrating through the inner and outer sides thereof, and the gas storage cavity is connected to the shaft tube through the gas guide hole.

[0013] Preferably, the temperature control mechanism further includes a transmission shaft arranged on the stirring pipe at equal intervals, the two ends of the transmission shaft are penetrated through the stirring pipe, and the transmission shaft and the stirring pipe are also connected by a sealing bearing, the two ends of the transmission shaft are provided with gas diffuser impellers, the middle part of the transmission shaft is keyed with a transmission gear, the transmission gear is engaged with the corresponding rack plate, the stirring pipe is also provided with a one-way exhaust hole, the number of the one-way exhaust holes is the same as that of the transmission shaft, and each group of the one-way exhaust holes is arranged at equal angles about the axis of the transmission shaft.

[0014] Preferably, the temperature control mechanism further comprises a piston sheet arranged on each rack plate, and the piston sheet is seamlessly slidably connected to the inner side of the corresponding stirring pipe.

[0015] Preferably, the lower end of the rack plate is hemispherical, and the lower end of the rack plate is seamlessly slidably connected to the inner side of the corresponding stirring pipe.

[0016] Preferably, the stirring pipe is provided with a transmission shaft only on one side of the vertical line thereof, and the transmission shafts arranged on adjacent stirring pipes are respectively located on both sides of the vertical line of the stirring pipe.

[0017] Preferably, the rack plate is provided with teeth only at the position corresponding to the transmission shaft, and the piston sheet is arranged at the position of the rack plate where no teeth are arranged.

[0018] Compared with the prior art, the beneficial effects of the present application are that the benzohydroxamic acid reaction kettle material efficient mixing device can not only rotate synchronously with the shaft pipe and the stirring pipe to realize horizontal stirring, but also change the radius of horizontal stirring, thereby helping to improve the stirring efficiency, and in addition, through the rotation of the air diffuser impeller, longitudinal stirring can be realized, thereby being conducive to further improving the stirring efficiency, and at the same time, during the stirring of the material, a certain temperature of inert gas can be transported into the kettle body, so that the reaction temperature in the kettle body can be changed, thereby helping to improve the efficiency and effect of benzohydroxamic acid synthesis reaction.

[0019] 1. Through the pressure guide block, the stirring pipe can reciprocate when rotating with the shaft pipe, thereby the radius of stirring can be changed, which is conducive to improving the stirring efficiency, and in addition, during the reciprocation of the connecting rod, the rack plate is driven to move synchronously, thereby the air diffuser impeller can be driven to rotate at high speed, so as to realize longitudinal stirring, and through the synchronous horizontal and longitudinal stirring, the efficiency of material mixing in the kettle body can be improved.

[0020] 2. When the rack plate moves, the piston sheet thereon also moves synchronously, and in cooperation with the one-way air outlet hole, the one-way air guide pipe and the one-way air diffuser hole, the inert gas in the gas storage bottle can be sucked into the temperature control device in one direction, the inert gas changes its temperature through the temperature control device, and then is transported to the gas storage cavity from the one-way air guide pipe, and then enters the shaft pipe through the air guide hole, and is sprayed out from the one-way air outlet hole after passing through the stirring pipe. At the moment when the inert gas is sprayed out, a large bubble is formed, and during the process, due to the high-speed rotation of the air diffuser impeller, the large bubble can be cut into countless small bubbles, thereby greatly improving the surface area of the contact between the inert gas and the material, so that the temperature of the inert gas can be quickly transmitted to the material, so as to change the reaction temperature, thereby improving the efficiency and effect of benzohydroxamic acid synthesis reaction. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a front view structural schematic diagram of the present application;

[0022] Figure 2 is a schematic view of the rear view structure of the present application;

[0023] Figure 3 is a schematic view of the main sectional structure of the present application;

[0024] Figure 4 is a schematic view of the enlarged structure of point A in the present application; Figure 3

[0025] Figure 5 is a schematic view of the side sectional structure of the present application;

[0026] Figure 6 is a schematic view of the enlarged structure of point B in the present application; Figure 5

[0027] is a schematic view of the enlarged structure of point C in the present application; Figure 7 Figure 5

[0028] is a schematic view of the connection structure of the shaft pipe and the connecting rod in the present application; Figure 8

[0029] is a schematic view of the enlarged structure of point D in the present application; Figure 9 Figure 8 is a schematic view of the connection structure of the connecting rod and the rack plate in the present application;

[0030] Figure 10 is a schematic view of the bottom sectional structure of the present application.

[0031] Figure 11 In the figure: 1, support seat; 2, support frame; 3, kettle body; 4, motor frame; 5, servo motor; 6, feeding port; 7, gas storage bottle; 8, temperature control equipment; 9, discharging port; 10, control panel; 11, one-way gas guide pipe; 12, shaft pipe; 13, stirring pipe; 14, connecting rod; 15, gas storage cavity; 16, gas guide hole; 17, one-way exhaust hole; 18, transmission shaft; 19, gas diffuser; 20, transmission gear; 21, rack plate; 22, folding pipe; 23, pressure guide block; 24, gas delivery pipe; 25, piston sheet; 26, one-way gas diffuser. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] Please refer to

[0034] Please refer to Figures 1-11 ​​​The application provides the following technical scheme:

[0035] In order to solve the problem that the mixing device in the benzohydroxamic acid reaction kettle only has a horizontal stirring structure, which leads to poor stirring efficiency, the application provides the following technical scheme, specifically a high-efficiency mixing device for materials in a benzohydroxamic acid reaction kettle, which comprises a support seat 1 and a kettle body 3 connected to the support seat 1 through a support frame 2, the upper end of the kettle body 3 is provided with a feeding port 6, the lower end of the kettle body 3 is provided with a discharging port 9, a valve for controlling the opening and closing of the discharging port 9 is installed on the discharging port 9, a servo motor 5 is installed on the upper end of the kettle body 3 through a motor frame 4, the driving end of the servo motor 5 is installed with a shaft pipe 12, the lower end of the shaft pipe 12 penetrates into the inside of the kettle body 3, and the kettle body 3 and the shaft pipe 12 are connected through a sealing bearing, the part of the shaft pipe 12 extending into the kettle body 3 is provided with stirring pipes 13 at equal intervals, and the stirring pipes 13 are provided with reciprocating longitudinal stirring mechanisms.

[0036] The shaft pipe 12 and the stirring pipe 13 are connected through, and the inner diameter of the shaft pipe 12 is greater than that of the stirring pipe 13, the reciprocating longitudinal stirring mechanism comprises a rack plate 21 arranged in each stirring pipe 13, the two ends of the rack plate 21 penetrate through the two ends of the corresponding stirring pipe 13 respectively, all the rack plates 21 are fixedly connected to the connecting rods 14 on the same side at the same end, and the connecting rods 14 and one end close to the stirring pipe 13 are both provided with folding pipes 22, the folding pipes 22 are sleeved on the outside of the corresponding connecting rods 14, the reciprocating longitudinal stirring mechanism further comprises a pressure guide block 23 fixedly connected to the inside of the kettle body 3, the transverse section of the pressure guide block 23 is an isosceles triangle, and the side surface of the connecting rod 14 close to the inside of the kettle body 3 is a smooth hemispherical surface, so that the connecting rod 14 and the pressure guide block 23 can smoothly contact.

[0037] According to Figure 3 , Figure 5 and Figure 11 , the liquid material for synthesizing benzohydroxamic acid is injected into the kettle body 3 through the feeding port 6, and then the feeding port 6 is closed;

[0038] The servo motor 5 is started, the servo motor 5 drives the shaft pipe 12 to rotate, and the stirring pipe 13 rotates synchronously with the shaft pipe 12;

[0039] During the rotation of the stirring pipe 13, the connecting rods 14 thereon will intermittently contact the pressure guide block 23, the reciprocating movement of the connecting rods 14 is caused by the extrusion of the pressure guide block 23, and the stirring range of the horizontal stirring structure composed of the shaft pipe 12, the stirring pipe 13 and the connecting rod 14 is changed, which is beneficial to improve the stirring efficiency;

[0040] In addition, during the reciprocating movement of the connecting rod 14, the high-speed rotation of the air diffuser impeller 19 is driven by the rack plate 21, and the liquid material can be longitudinally stirred, which is beneficial to further improve the stirring efficiency.

[0041] In order to solve the problem that the material mixing device in the benzohydroxamic acid reaction kettle cannot change the reaction temperature in the past, the technical scheme is provided as follows, specifically, the stirring pipe 13 is also provided with a temperature control mechanism, and the temperature control mechanism comprises a gas storage bottle 7 fixedly arranged on the upper surface of the support seat 1 and a temperature control equipment 8, inert gas is stored in the gas storage bottle 7, a control panel 10 is installed on the support frame 2, and the servo motor 5 and the temperature control equipment 8 are electrically connected with the control panel 10.

[0042] The temperature control mechanism further comprises a gas conveying pipe 24 arranged between the gas storage bottle 7 and the temperature control equipment 8, and the lower end of the one-way gas guide pipe 11 is connected with the temperature control equipment 8, the inner top end of the kettle body 3 is provided with a gas storage cavity 15, and the gas storage cavity 15 is arranged through the shaft pipe 12, the shaft pipe 12 and the gas storage cavity 15 are also connected through a sealing bearing, the upper end of the one-way gas guide pipe 11 is connected through the gas storage cavity 15, the top end of the kettle body 3 is provided with a one-way gas discharge hole 26 penetrating through the inner and outer sides thereof, the gas storage cavity 15 is connected through the gas guide hole 16 and the shaft pipe 12, the temperature control mechanism further comprises a transmission shaft 18 arranged at equal intervals on the stirring pipe 13, the both ends of the transmission shaft 18 are arranged through the stirring pipe 13, the transmission shaft 18 and the stirring pipe 13 are also connected through a sealing bearing, the both ends of the transmission shaft 18 are installed with gas diffuser impellers 19, and the middle part of the transmission shaft 18 is keyed with a transmission gear 20, the transmission gear 20 is engaged with the corresponding rack plate 21, the stirring pipe 13 is also provided with a one-way exhaust hole 17, and the number of the one-way exhaust hole 17 is the same as the number of the transmission shaft 18, each group of one-way exhaust holes 17 is arranged at equal angles about the axis of the transmission shaft 18, the temperature control mechanism further comprises a piston sheet 25 arranged on each rack plate 21, and the piston sheet 25 is seamlessly slidably connected to the inner side of the corresponding stirring pipe 13, the lower end of the rack plate 21 is hemispherical, and the lower end of the rack plate 21 is inlaidly and slidably connected to the inner side of the corresponding stirring pipe 13, the stirring pipe 13 is provided with the transmission shaft 18 only on one side of the vertical line thereof, and the transmission shafts 18 arranged on the adjacent stirring pipes 13 are respectively located on both sides of the vertical line of the stirring pipe 13, the rack plate 21 is provided with teeth only at the position corresponding to the transmission shaft 18, and the piston sheet 25 is arranged at the position of the rack plate 21 where no teeth are arranged.

[0043] According to Figures 3-10, the connecting rod 14 reciprocating movement, driven rack plate 21 synchronous reciprocating movement, rack plate 21 in the process of reciprocating movement, not only can be driven by transmission gear 20 transmission shaft 18 high-speed rotation, and can be driven by piston sheet 25 inert gas cylinder 7 inside the delivery to the one-way exhaust hole 17 discharge (cylinder 7 for prior art, gas pipe 24 inert gas delivery to the temperature control equipment 8, cylinder 7 will not form a negative pressure inside), to form a larger bubble, and by transmission shaft 18 driven gas diffuser impeller 19 high-speed rotation cutting, form a large number of tiny bubbles, thereby greatly improving the inert gas and liquid material contact area, help inert gas change the temperature of the reaction;

[0044] The process of inert gas delivery is as follows: when the rack plate 21 moves away from the axis of the shaft tube 12 (a negative pressure is generated in the container formed by the shaft tube 12 and the stirring tube 13), the inert gas enters the container formed by the shaft tube 12 and the stirring tube 13 through the one-way air guide pipe 11 and the air guide hole 16;

[0045] When the rack plate 21 moves in the opposite direction, carrying the connected piston sheet 25 approaches the axis of the shaft tube 12 (a positive pressure is generated in the container formed by the shaft tube 12 and the stirring tube 13), the inert gas is discharged through the one-way exhaust hole 17;

[0046] The inert gas mainly relies on the characteristics of the one-way exhaust hole 17 and the one-way air guide pipe 11, which only discharge gas but do not inhale, and the principle of the piston sheet 25 moving in the stirring tube 13 to generate positive or negative pressure;

[0047] In the above process, the inert gas will pass through the temperature control equipment 8 to change its temperature (the temperature control equipment 8 can be a cold and hot all-in-one machine, or a heating and refrigeration dual-purpose oven or a semiconductor cold and hot table), so that the temperature of the liquid material can be quickly changed after subsequent contact with the liquid material, that is, the reaction temperature can be quickly changed, which is beneficial to improve the efficiency and effect of the benzohydroxamic acid synthesis reaction.

[0048] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0049] Although embodiments of the present application 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 therein without departing from the principles and spirit of the application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency mixing device for materials in a benzohydroxamic acid reactor, comprising a support seat (1) and a reactor body (3) connected thereto by a support frame (2), characterized in that: The upper end of the kettle body (3) is provided with a feeding port (6), and the lower end of the kettle body (3) is provided with a discharging port (9), a valve for controlling the opening and closing of the discharging port (9) is installed on the discharging port (9), the upper end of the kettle body (3) is installed with a servo motor (5) through a motor bracket (4), and the driving end of the servo motor (5) is installed with a shaft tube (12), the lower end of the shaft tube (12) penetrates into the inside of the kettle body (3), and the kettle body (3) and the shaft tube (12) are connected through a sealing bearing, the part of the shaft tube (12) extending into the kettle body (3) is provided with stirring pipes (13) at equal intervals, and the stirring pipes (13) are provided with reciprocating longitudinal stirring mechanisms, the stirring pipes (13) are also provided with temperature control mechanisms, and the temperature control mechanisms comprise a gas storage cylinder (7) fixedly arranged on the upper surface of the support base (1) and a temperature control device (8), the gas storage cylinder (7) stores inert gas, a control panel (10) is installed on the support frame (2), and the servo motor (5) and the temperature control device (8) are electrically connected with the control panel (10), the reciprocating longitudinal stirring mechanism comprises a rack plate (21) arranged in each stirring pipe (13), the two ends of the rack plate (21) penetrate through the two ends of the corresponding stirring pipe (13) respectively, and the same end of all the rack plates (21) is fixedly connected to the connecting rod (14) on the same side, and the connecting rod (14) and one end close to the stirring pipe (13) of the connecting rod (14) are provided with a folding pipe (22), the folding pipe (22) is sleeved on the outside of the corresponding connecting rod (14), the reciprocating longitudinal stirring mechanism further comprises a guide pressure block (23) fixedly connected to the inside of the kettle body (3), and the transverse section of the guide pressure block (23) is an isosceles triangle, and the side surface of the connecting rod (14) close to the inside of the kettle body (3) is a smooth hemispherical surface, so that the connecting rod (14) and the guide pressure block (23) can smoothly contact.

2. The high-efficiency mixing device for materials in a benzohydroxamic acid reaction kettle according to claim 1, characterized in that: The shaft tube (12) and the stirring pipe (13) are connected through, and the inner diameter of the shaft tube (12) is greater than the inner diameter of the stirring pipe (13).

3. The high-efficiency mixing device for materials in a benzohydroxamic acid reaction kettle according to claim 2, characterized in that: The temperature control mechanism further comprises a gas conveying pipe (24) arranged between the gas storage cylinder (7) and the temperature control device (8), and the lower end of the one-way gas guide pipe (11) is connected to the temperature control device (8), the inner top end of the kettle body (3) is provided with a gas storage cavity (15), the gas storage cavity (15) is penetrated by the shaft tube (12), the shaft tube (12) and the gas storage cavity (15) are also connected through a sealing bearing, the upper end of the one-way gas guide pipe (11) is connected through the gas storage cavity (15), the top end of the kettle body (3) is provided with a one-way gas discharge hole (26) penetrating through the inside and outside of the kettle body (3), and the gas storage cavity (15) is connected through the gas guide hole (16) with the shaft tube (12).

4. The high-efficiency mixing device for materials in a benzohydroxamic acid reaction kettle according to claim 3, characterized in that: The temperature control mechanism further comprises transmission shafts (18) arranged at equal intervals on the stirring pipes (13), both ends of the transmission shafts (18) penetrate the stirring pipes (13) and are connected with the stirring pipes (13) through sealing bearings, both ends of the transmission shafts (18) are provided with air diffuser impellers (19), and the middle part of the transmission shafts (18) is keyed with transmission gears (20), the transmission gears (20) are meshed with corresponding rack plates (21), the stirring pipes (13) are further provided with one-way exhaust holes (17), the number of the one-way exhaust holes (17) is the same as that of the transmission shafts (18), and each group of the one-way exhaust holes (17) is arranged at equal angles about the axis of the transmission shaft (18).

5. The high-efficiency mixing device for materials in a benzohydroxamic acid reaction kettle according to claim 4, characterized in that: The temperature control mechanism further comprises piston sheets (25) arranged on each rack plate (21) and seamlessly slidably connected to the inner side of the corresponding stirring pipe (13).

6. The high-efficiency mixing device for materials in a benzohydroxamic acid reaction kettle according to claim 5, characterized in that: The lower end of the rack plate (21) is semispherical, and the lower end of the rack plate (21) is inlaid slidably connected with the inner side of the corresponding stirring pipe (13).

7. The high-efficiency mixing device for materials in a benzohydroxamic acid reaction kettle according to claim 6, characterized in that: The stirring pipe (13) is provided with the transmission shaft (18) only on the side of the vertical line, and the transmission shafts (18) arranged on the adjacent stirring pipes (13) are respectively located on both sides of the vertical line of the stirring pipe (13).

8. The high-efficiency mixing device for materials in a benzohydroxamic acid reaction kettle according to claim 7, characterized in that: The rack plate (21) is provided with teeth only at the position corresponding to the transmission shaft (18), and the piston sheet (25) is arranged at the position of the rack plate (21) where no teeth are arranged.

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