Ammonolysis reaction kettle for producing chlorobenzyl cyanide

Abstract

The utility model discloses an ammonolysis reaction kettle for producing o-chlorobenzyl cyanide, which comprises a kettle body, a separation seat, an electromagnetic blanking assembly and a stirring assembly, and a kettle cover is fixed at the top of the kettle body through bolts and nuts; a temperature control jacket is arranged outside the kettle body; a first feeding flange and a second feeding flange are arranged on the kettle cover; the partition seat comprises a conical bin, an outer edge is integrally formed on the top surface of the conical bin, a plurality of through holes are formed in the outer edge at intervals, the outer edge is pressed and sealed by the kettle body and the kettle cover, and the bolts movably penetrate through the through holes; a feeding embedded opening is formed in the upper portion of the conical bin. A shaft penetrating through hole is formed in the center of the conical bin; the conical bin is provided with a plurality of assistant blanking ports outside the shaft penetrating through hole; according to the ammonolysis reaction kettle for producing the o-chlorobenzyl cyanide, disclosed by the utility model, a catalyst is fed into the kettle body in a dynamic adding manner and participates in ammonolysis reaction; temperature fluctuation is not caused in the feeding process, and the catalyst is not precipitated at the bottom of the kettle body.

Description

Technical Field

[0001] The utility model specifically relates to an ammonolysis reactor for producing o-chlorobenzeneacetonitrile, belonging to the technical field of reactors. Background Art

[0002] During the production of o-chlorobenzeneacetonitrile, an ammonolysis reaction needs to be carried out. During the ammonolysis process, ammonium chloride needs to be added to the reaction solution after the chlorination substitution reaction is completed, and the solution is heated under the condition of copper powder as a catalyst to complete the ammonolysis reaction. The reaction generates o-chlorobenzeneacetonitrile and hydrogen chloride. However, in this process, a stirring device is mostly used in the existing reactor to stir the ammonium chloride and the copper powder in one direction, and the reaction solution in the reactor is regularly directional mixed. However, the concentratedly added ammonium chloride and copper powder are not easy to disperse during this process, resulting in low efficiency of the ammonolysis reaction. Some existing reactors pump out the bottom material and then pump it into the upper inner part of the reactor body to react again. The fluid is easily dethermal during the lifting process, causing the temperature inside the reactor to fluctuate, which is easy to affect the reaction yield of o-chlorobenzeneacetonitrile. Utility Model Content

[0003] In order to solve the above problems, the utility model proposes an ammonolysis reaction kettle for producing o-chlorobenzeneacetonitrile, in which the catalyst is added into the kettle body in a dynamic addition manner to participate in the ammonolysis reaction; the addition process will not cause temperature fluctuations and will not cause the catalyst to precipitate at the bottom of the kettle body.

[0004] The ammonolysis reaction kettle for producing o-chlorobenzeneacetonitrile of the utility model comprises:

[0005] A kettle body, wherein a kettle cover is fixed on the top of the kettle body by bolts and nuts; a temperature control jacket is arranged outside the kettle body; and a first feed flange and a second feed flange are arranged on the kettle cover;

[0006] The partition seat comprises a conical bin, the top surface of the conical bin is integrally formed with an outer edge, a plurality of through holes are arranged at intervals on the outer edge, the outer edge is pressed and sealed by the kettle body and the kettle cover, and the bolts are movably passed through the through holes; a feed inlay is provided on the upper part of the conical bin; a through-shaft hole is provided at the center of the conical bin; a plurality of auxiliary agent drop-out ports are provided on the outside of the through-shaft hole; the first feed flange is movably passed through the feed inlay, and the second feed flange is arranged above the partition seat;

[0007] An electromagnetic material discharge assembly, the electromagnetic material discharge assembly comprises a cartridge seat fixed to the outer bottom of the conical bin, the cartridge seat bottom is provided with a bottom hole; a first annular electromagnet is fixed to the inner bottom of the cartridge seat, a ring plate is provided above the first electromagnet, a second electromagnet is fixed to the inner side of the ring plate; a plurality of telescopic rods are provided between the ring plate and the cartridge seat; the ring plate is movably pressed with the auxiliary agent discharge port;

[0008] A stirring assembly, the stirring assembly includes a driving motor fixed to the top surface of the kettle cover through a motor frame, the driving motor is connected to a first stirring paddle through a first coupling; the first stirring paddle is in contact with the inner side of the conical bin; the stirring shaft of the first stirring paddle moves through the partition and the electromagnetic feeding assembly, and is connected to the second stirring paddle through a second coupling; the second stirring paddle is pressed against the inner bottom of the kettle body.

[0009] During the ammonolysis reaction, the first electromagnet and the second electromagnet are controlled to repel each other, and the second electromagnet pushes the ring plate upward. When it moves upward, it is guided by sliding through the telescopic rod, so that the ring plate is pressed tightly against the bottom surface of the auxiliary agent drop opening. At this time, the auxiliary agent drop opening is closed. Then, the materials participating in the ammonolysis reaction and part of the catalyst are put into the inner side of the kettle body through the first feeding flange, and the remaining solid and liquid catalysts are put into the inner side of the conical bin. Then, the temperature of the temperature control jacket is controlled, and the drive motor is turned on. The drive motor drives the first stirring paddle to rotate through the first coupling, so that the catalyst inside the conical bin is stirred. High-speed stirring is performed to fully mix the catalyst. When the first stirring paddle rotates for stirring, the second stirring paddle is synchronously driven to rotate through the second coupling, thereby mixing and reacting the materials for the ammonolysis reaction inside the kettle body. Next, the electromagnetic material discharge component is controlled to move. When the electromagnetic material discharge component is working, the first electromagnet and the second electromagnet are intermittently controlled to approach and repel each other, thereby realizing intermittent dynamic material discharge. The catalyst is intermittently replenished inside the kettle body, and the catalyst inside the conical bin is continuously heated by the temperature inside the kettle body, so that the temperature difference between the catalyst inside the conical bin and the materials participating in the ammonolysis reaction in the kettle body is small.

[0010] Furthermore, a guide rod is fixed to the side of the cylinder seat, and a wiring seat is provided on the upper part of the kettle body. A control line is movably passed through the wiring seat, and the control line is connected to the first electromagnet and the second electromagnet through the guide rod; the control line is connected to the controller of the kettle body, and the controller sends a control signal, and the control signal is sent to the first electromagnet and the second electromagnet through the controller, thereby controlling the first electromagnet and the second electromagnet to attract or repel each other. When attracted to each other, the ring plate can be separated from the auxiliary agent blanking port, thereby opening the auxiliary agent blanking port; when repelled from each other, the ring plate is pushed up, so that the ring plate is pressed against the auxiliary agent blanking port, thereby closing the auxiliary agent blanking port.

[0011] Furthermore, the inner diameter of the bottom hole is larger than the inner diameter of the shaft through hole; when the first electromagnet and the second electromagnet are close to each other, the auxiliary agent blanking port, the center hole of the ring plate and the bottom hole are connected to each other, and when the first electromagnet and the second electromagnet are far away from each other, the ring plate can be pressed with the auxiliary agent blanking port, thereby closing the auxiliary agent blanking port.

[0012] Furthermore, the telescopic rod is arranged inside the first electromagnet.

[0013] Furthermore, an angle seat is provided on the upper part of the kettle body, and a support foot is fixed to the bottom of the angle seat, so that the kettle body can be supported by the support foot, so that the bottom valve of the kettle body can discharge materials smoothly.

[0014] Compared with the prior art, the ammonolysis reaction kettle for producing o-chlorobenzene acetonitrile of the utility model, during the ammonolysis reaction, the ammonolysis reaction raw materials are put into the kettle body in advance, and part of the catalyst is put into the kettle body simultaneously, the remaining part of the catalyst is isothermally preheated by the kettle body, and during the ammonolysis reaction, the catalyst is put into the kettle body in a dynamic addition mode to participate in the ammonolysis reaction; the addition process will not cause temperature fluctuations, and will not cause the catalyst to precipitate at the bottom of the kettle body, and the ammonolysis reaction efficiency and the yield of o-chlorobenzene acetonitrile can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 For the utility model Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0017] Figure 3 It is a schematic diagram of the radial cross-section structure of the spacer of the utility model.

[0018] Figure 4 It is a schematic diagram of the radial cross-section structure of the electromagnetic blanking component of the utility model.

[0019] Figure numerals: 1, kettle body, 2, kettle cover, 3, temperature control jacket, 4, first feed flange, 5, second feed flange, 6, conical bin, 7, outer edge, 8, perforation, 9, feed inlay, 10, shaft through hole, 11, auxiliary agent drop-in port, 12, partition seat, 13, cylinder seat, 14, bottom hole, 15, first electromagnet, 16, ring plate, 17, second electromagnet, 18, telescopic rod, 19, drive motor, 20, first stirring paddle, 21, second stirring paddle, 22, guide rod, 23, terminal block, 24, angle seat, 25, support foot. DETAILED DESCRIPTION

[0020] Example:

[0021] like Figures 1 to 4 The ammonolysis reactor for producing o-chlorobenzeneacetonitrile shown comprises:

[0022] A kettle body 1, a kettle cover 2 is fixed on the top of the kettle body 1 by bolts and nuts; a temperature control jacket 3 is arranged outside the kettle body 1; a first feed flange 4 and a second feed flange 5 are arranged on the kettle cover 2;

[0023] A partition seat 12, the partition seat 12 includes a conical bin 6, the top surface of the conical bin 6 is integrally formed with an outer edge 7, a plurality of through holes 8 are arranged at intervals on the outer edge 7, the outer edge 7 is pressed and sealed by the kettle body 1 and the kettle cover 2, and the bolts are movably passed through the through holes 8; a feed inlet 9 is provided on the upper part of the conical bin 6; a through-shaft through hole 10 is provided at the center of the conical bin 6; a plurality of auxiliary agent drop-out ports 11 are provided on the outside of the through-shaft through hole 10 of the conical bin 6; the first feed flange 4 is movably passed through the feed inlet 9, and the second feed flange 5 is arranged above the partition seat 12;

[0024] An electromagnetic material discharge assembly, the electromagnetic material discharge assembly comprises a cartridge seat 13 fixed to the outer bottom of the conical bin 6, a bottom hole 14 is provided at the bottom of the cartridge seat 13; a first annular electromagnet 15 is fixed to the inner bottom of the cartridge seat 13, a ring plate 16 is provided above the first electromagnet 15, a second electromagnet 17 is fixed inside the ring plate 16; a plurality of telescopic rods 18 are provided between the ring plate 16 and the cartridge seat 13; the ring plate 16 is movably pressed with the auxiliary agent discharge port 11;

[0025] A stirring assembly, the stirring assembly includes a drive motor 19 fixed to the top surface of the kettle cover 2 through a motor frame, the drive motor 19 is connected to the first stirring paddle 20 through a first coupling; the first stirring paddle 20 is in contact with the inner side of the conical bin 6; the stirring shaft of the first stirring paddle 20 moves through the partition 12 and the electromagnetic unloading assembly, and is connected to the second stirring paddle 21 through a second coupling; the second stirring paddle 21 is pressed against the inner bottom of the kettle body 1.

[0026] During the ammonolysis reaction, the first electromagnet 15 and the second electromagnet 17 are controlled to repel each other, and the second electromagnet 17 pushes the ring plate 16 upward. When it moves upward, the telescopic rod 18 is used for sliding guidance, so that the ring plate 16 is pressed against the bottom surface of the auxiliary agent drop opening 11. At this time, the auxiliary agent drop opening 11 is closed. Then, the materials participating in the ammonolysis reaction and part of the catalyst are put into the inner side of the kettle body 1 through the first feed flange 4, and the remaining solid and liquid catalysts are put into the inner side of the conical bin 6. Then, the temperature of the temperature control jacket 3 is controlled, and the drive motor 19 is turned on. The drive motor 19 drives the first stirring paddle 20 to rotate through the first coupling, thereby The catalyst is stirred at high speed inside to make the catalyst fully mixed. When the first stirring paddle 20 rotates and stirs, the second stirring paddle 21 is driven to rotate synchronously through the second coupling, so that the materials for the ammonolysis reaction inside the kettle body 1 are mixed and reacted with ammonolysis; then, the action of the electromagnetic feeding assembly is controlled. When the electromagnetic feeding assembly is working, the first electromagnet 15 and the second electromagnet 17 are intermittently controlled to approach and repel each other, so as to realize intermittent dynamic feeding; the catalyst is intermittently replenished inside the kettle body 1, and the catalyst inside the conical bin 6 is continuously heated by the internal temperature of the kettle body 1, so that the temperature difference between the catalyst inside the conical bin 6 and the materials participating in the ammonolysis reaction of the kettle body 1 is small.

[0027] A guide rod 22 is fixed to the side of the cylinder seat 13, and a wiring seat 23 is arranged on the upper part of the kettle body 1. A control line is movably passed through the wiring seat 23, and the control line is connected to the first electromagnet 15 and the second electromagnet 17 through the guide rod 22; the control line is connected to the controller of the kettle body 1, and the controller sends a control signal, and the control signal is sent to the first electromagnet 15 and the second electromagnet 17 through the controller, so as to control the first electromagnet 15 and the second electromagnet 17 to attract or repel each other. When attracting each other, the ring plate 16 can be separated from the auxiliary agent blanking port 11, so as to open the auxiliary agent blanking port 11; when repelling each other, the ring plate 16 is pushed up, so that the ring plate 16 and the auxiliary agent blanking port 11 are pressed together, so as to close the auxiliary agent blanking port 11.

[0028] The inner diameter of the bottom hole 14 is larger than the inner diameter of the shaft through hole 10; when the first electromagnet 15 and the second electromagnet 17 are close to each other, the auxiliary agent blanking port 11, the center hole of the ring plate 16 and the bottom hole 14 are connected to each other; when the first electromagnet 15 and the second electromagnet 17 are away from each other, the ring plate 16 can be pressed with the auxiliary agent blanking port 11, thereby closing the auxiliary agent blanking port 11.

[0029] The telescopic rod 18 is disposed inside the first electromagnet 15 .

[0030] An angle seat 24 is provided on the upper part of the kettle body 1 , and a support leg 25 is fixed to the bottom of the angle seat 24 . The support leg 25 can support the kettle body 1 , so that the bottom valve of the kettle body 1 can discharge materials smoothly.

[0031] The above embodiments are only preferred implementations of the present invention, so any equivalent changes or modifications made according to the structures, features and principles described in the scope of application of the present invention are included in the scope of application of the present invention.

Claims

1. An ammonolysis reactor for producing o-chlorobenzeneacetonitrile, characterized in that: include: A kettle body, wherein a kettle cover is fixed on the top of the kettle body by bolts and nuts; a temperature control jacket is arranged outside the kettle body; and a first feed flange and a second feed flange are arranged on the kettle cover; The partition seat comprises a conical bin, the top surface of the conical bin is integrally formed with an outer edge, a plurality of through holes are arranged at intervals on the outer edge, the outer edge is pressed and sealed by the kettle body and the kettle cover, and the bolts are movably passed through the through holes; a feed inlay is provided on the upper part of the conical bin; a through-shaft hole is provided at the center of the conical bin; a plurality of auxiliary agent drop-out ports are provided on the outside of the through-shaft hole; the first feed flange is movably passed through the feed inlay, and the second feed flange is arranged above the partition seat; An electromagnetic material discharge assembly, the electromagnetic material discharge assembly comprises a cartridge seat fixed to the outer bottom of the conical bin, the cartridge seat bottom is provided with a bottom hole; a first annular electromagnet is fixed to the inner bottom of the cartridge seat, a ring plate is provided above the first electromagnet, a second electromagnet is fixed to the inner side of the ring plate; a plurality of telescopic rods are provided between the ring plate and the cartridge seat; the ring plate is movably pressed with the auxiliary agent discharge port; A stirring assembly, the stirring assembly includes a driving motor fixed to the top surface of the kettle cover through a motor frame, the driving motor is connected to a first stirring paddle through a first coupling; the first stirring paddle is in contact with the inner side of the conical bin; the stirring shaft of the first stirring paddle moves through the partition and the electromagnetic feeding assembly, and is connected to the second stirring paddle through a second coupling; the second stirring paddle is pressed against the inner bottom of the kettle body.

2. The ammonolysis reactor for producing o-chlorobenzeneacetonitrile according to claim 1, characterized in that: A guide rod is fixed to the side of the cylinder seat, and a wiring seat is arranged on the upper part of the kettle body. A control line passes through the wiring seat movably, and the control line is connected to the first electromagnet and the second electromagnet through the guide rod; the control line is connected to the controller of the kettle body.

3. The ammonolysis reactor for producing o-chlorobenzeneacetonitrile according to claim 1, characterized in that: The inner diameter of the bottom hole is larger than the inner diameter of the shaft through hole; when the first electromagnet and the second electromagnet are close to each other, the auxiliary agent blanking port, the center hole of the ring plate and the bottom hole are connected to each other.

4. The ammonolysis reactor for producing o-chlorobenzeneacetonitrile according to claim 1, characterized in that: The telescopic rod is arranged inside the first electromagnet.

5. The ammonolysis reactor for producing o-chlorobenzeneacetonitrile according to claim 1, characterized in that: An angle seat is arranged on the upper part of the kettle body, and a supporting foot is fixed on the bottom of the angle seat.

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