Constant-temperature reaction device for preparing 2, 6-dimethyl piperazine dihydrochloride

Abstract

The utility model discloses a thermostatic reaction device for preparing 2, 6-dimethyl piperazine dihydrochloride, which belongs to the technical field of thermostatic reaction devices and comprises a reaction kettle, a driving rod is rotatably arranged in the reaction kettle, a movable rod is movably sleeved on the outer wall of the driving rod, a guide groove is arranged on the inner wall of the reaction kettle, and the movable rod is movably sleeved on the inner wall of the reaction kettle. The end part of the movable rod is in sliding fit with the inner wall of the guide groove, a stirring rod is rotationally arranged on the movable rod, a guide piece is fixedly arranged on the outer wall of the driving rod, and the upper end of the stirring rod is inserted into the guide piece and is fixedly provided with a guide block; the driving rod drives the movable rod to rotate, and the movable rod slides along the inner wall of the guide groove, so that the movable rod drives the stirring rod to move up and down, and when the stirring rod moves upwards, the guide block is driven to slide along the inner wall of the guide piece, so that the stirring rod is driven to rotate; the raw materials are stirred by the stirring rod while being turned up and down in the reaction kettle, so that the mixing effect of the raw materials is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to constant temperature reaction device technical field especially 2, 6 -dimethyl piperazine dihydrochloride preparation constant temperature reaction device. BACKGROUND

[0002] 2, 6 -dimethyl piperazine dihydrochloride is an important pharmaceutical chemical intermediate, often used as raw material synthesis antibiotic, tranquilizer and anthelmintic drug and so on, can also be used for manufacturing dye auxiliary, surfactant etc., 2, 6 -dimethyl piperazine dihydrochloride needs to use constant temperature reaction device when preparing.

[0003] The existing patent (announcement number: CN208636731U) discloses a kind of chemical reaction constant temperature control device, including box and support frame, the top of box is fixed with feed inlet, the top of feed inlet is fixed with upper cover, the middle part of the top of box is fixed with stirring mechanism, the inner wall of the top of box is fixed with a plurality of electric heating wires at intervals, the outside of electric heating wire is fixed with insulating tube, it is driven by stirring motor transmission shaft to rotate and drive stirring shaft and stirring paddle to stir material.But this technical scheme still has the deficiency, as follows:

[0004] The device is only driven by motor to stir material with single stirring part when using, but the stirring amplitude of single stirring part is small when stirring material, so the mixing effect of material is poor.Therefore, we propose a kind of 2, 6 -dimethyl piperazine dihydrochloride preparation constant temperature reaction device to solve the above-mentioned problems. CONTENT OF UTILITY MODEL

[0005] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments.In this part, as well as the abstract of the specification and the utility model name, some simplification or omission may be made to avoid obscuring the purpose of this part, abstract and utility model name, and this simplification or omission cannot be used to limit the scope of the utility model.

[0006] Therefore, the utility model aims at providing a kind of 2, 6 -dimethyl piperazine dihydrochloride preparation constant temperature reaction device, can solve the problem that the device in prior art is only driven by motor to stir material with single stirring part when using, but the stirring amplitude of single stirring part is small when stirring material, so the mixing effect of material is poor.

[0007] To solve the above technical problems, the utility model provides a kind of 2,6-dimethylpiperazine dihydrochloride preparation constant temperature reaction device, using following technical scheme: including reaction kettle, the inside rotation of the reaction kettle is provided with driving rod, the outer wall of the driving rod is movably sleeved with movable rod, the inner wall of the reaction kettle is provided with guide slot, the end of the movable rod and the inner wall of guide slot are slidably matched, the movable rod is rotatably provided with stirring rod, the outer wall of the driving rod is fixedly provided with guide piece, the upper end of the stirring rod is inserted into guide piece and is fixedly provided with guide block, the guide block and the inner wall of guide piece are slidably matched, the outer wall of the reaction kettle is fixedly sleeved with constant temperature heating jacket.

[0008] By using the above technical scheme, the preparation raw material is first poured into the reaction kettle, then the driving rod is started to drive the movable rod to rotate, and the movable rod slides along the inner wall of the guide slot, so as to drive the stirring rod to move up and down.

[0009] Optionally, the top of the reaction kettle is fixedly inserted with a feed pipe, the bottom of the reaction kettle is fixedly inserted with a discharge pipe, and the discharge pipe is provided with a control valve.

[0010] By using the above technical scheme, the raw material can be easily added into the reaction kettle through the feed pipe, the treated raw material can be easily discharged through the discharge pipe, and the opening and closing of the discharge pipe can be easily controlled through the control valve.

[0011] Optionally, the driving rod includes a motor and a rotating rod, the motor is fixedly arranged at the top of the reaction kettle, the rotating shaft of the motor is inserted into the reaction kettle and fixedly connected with the upper end of the rotating rod, and the outer wall of the rotating rod is provided with a plurality of sliding grooves.

[0012] By using the above technical scheme, the rotating rod can be easily rotated by the motor, and the movable rod and the stirring rod can be easily rotated with the rotating rod, so that the raw material in the reaction kettle can be stirred by the stirring rod.

[0013] Optionally, the movable rod includes a movable ring, a plurality of guide rods are fixedly arranged on the outer wall of the movable ring, and a plurality of sliding blocks are fixedly arranged on the inner wall of the movable ring, the sliding blocks are located in the sliding grooves and slidably matched with the inner wall of the sliding grooves.

[0014] By using the above technical scheme, the rotating rod is rotated by the sliding blocks and the sliding grooves, so that the movable ring and the guide rods are synchronously rotated, and the movable ring can move up and down along the axial direction of the rotating rod.

[0015] Optionally, the guide slot is in a wave shape, the guide slot has a plurality of protrusions and recesses, and the end of the guide rod away from the movable ring is slidably matched with the inner wall of the guide slot.

[0016] By adopting the technical scheme, the rotating rod drives the movable ring and the guide rod to rotate synchronously, the guide rod slides along the inner wall of the guide groove, and continuously passes through the protrusions and the depressions, so that the guide rod drives the movable ring to move up and down.

[0017] Optionally, the stirring rod is vertically rotatably arranged on the guide rod through a bearing, and the lower end of the stirring rod penetrates through the guide rod and is fixedly provided with a plurality of stirring blades.

[0018] By adopting the technical scheme, the rotating rod drives the movable ring and the guide rod to rotate synchronously, the guide rod slides along the inner wall of the guide groove, and continuously passes through the protrusions and the depressions, so that the guide rod drives the movable ring to move up and down.

[0019] Optionally, the guide member comprises a plurality of L-shaped rods, the number of the L-shaped rods corresponds to the vertical direction of the stirring rod, one end of the L-shaped rod is fixedly connected to the outer wall of the upper end of the rotating rod, the other end of the L-shaped rod is provided with a spiral groove, the upper end of the stirring rod is movably inserted into the spiral groove, and the guide block is in sliding fit with the inner wall of the spiral groove.

[0020] By adopting the technical scheme, the rotating rod drives the movable ring and the guide rod to rotate synchronously, the guide rod slides along the inner wall of the guide groove, and continuously passes through the protrusions and the depressions, so that the guide rod drives the movable ring to move up and down.

[0021] Optionally, the inner side of the constant-temperature heating jacket is provided with a plurality of electric heating plates, and the constant-temperature heating jacket is provided with a temperature sensor for monitoring the temperature of the reaction kettle.

[0022] By adopting the technical scheme, the rotating rod drives the movable ring and the guide rod to rotate synchronously, the guide rod slides along the inner wall of the guide groove, and continuously passes through the protrusions and the depressions, so that the guide rod drives the movable ring to move up and down.

[0023] In summary, the utility model has at least one of the following beneficial effects:

[0024] The driving rod drives the movable rod to rotate, and the movable rod slides along the inner wall of the guide groove, so as to drive the stirring rod to move up and down, when the stirring rod moves up, the guide block slides along the inner wall of the guide member, so as to drive the stirring rod to rotate, at this time, the raw materials in the reaction kettle are stirred and turned up and down, and thus the raw materials are mixed better;

[0025] When the stirring rod moves up and down, the guide block slides along the inner wall of the spiral groove, so as to drive the stirring rod to rotate, and the stirring blades are driven to rotate by the stirring rod, so as to stir the raw materials again. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0027] Fig. 1 It is a three-dimensional structure schematic view of the present application;

[0028] Fig. 2 It is a local three-dimensional structure sectional view of the present application;

[0029] Fig. 3 It is a local three-dimensional structure sectional view of the present application.

[0030] The figure mark explanation: 1, reaction kettle; 11, feed pipe; 12, discharge pipe; 13, control valve; 2, driving rod; 21, motor; 22, rotating rod; 23, chute; 3, movable rod; 31, movable ring; 32, guide rod; 33, sliding block; 4, guide groove; 5, stirring rod; 51, stirring blade; 6, guide piece; 61, L-shaped rod; 62, spiral groove; 7, guide block; 8, constant temperature heating jacket; 81, electric heating plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings Figs. 1-3 The present application will be further described in detail.

[0032] Embodiment one, refer to Figs. 1-3 In order to solve the problem that the existing device only drives a single stirring piece by a motor to stir the material when in use, and the stirring range of the single stirring piece is small when stirring the material, thus the mixing effect of the material is poor, the present application discloses a constant temperature reaction device for preparing 2,6-dimethylpiperazine dihydrochloride,

[0033] The constant temperature reaction device comprises a reaction kettle 1, a feed pipe 11 is fixedly inserted at the top of the reaction kettle 1, a discharge pipe 12 is fixedly inserted at the bottom of the reaction kettle 1, a control valve 13 is arranged in the discharge pipe 12, the raw material can be added into the reaction kettle 1 through the feed pipe 11, the treated raw material can be discharged through the discharge pipe 12, and the opening and closing of the discharge pipe 12 can be controlled through the control valve 13.

[0034] A driving rod 2 is rotatably arranged in the reaction kettle 1, a movable rod 3 is movably sleeved on the outer wall of the driving rod 2, a guide groove 4 is formed in the inner wall of the reaction kettle 1, and the end of the movable rod 3 is in sliding fit with the inner wall of the guide groove 4; the movable rod 3 is rotated by starting the driving rod 2, and the movable rod 3 slides along the inner wall of the guide groove 4, so as to make the movable rod 3 move up and down.

[0035] The stirring rod 5 is rotatably arranged on the movable rod 3, the driving rod 2 comprises a motor 21 and a rotating rod 22, the motor 21 is fixedly arranged on the top of the reaction kettle 1, the rotating shaft of the motor 21 is inserted into the reaction kettle 1 and fixedly connected with the upper end of the rotating rod 22, a plurality of sliding grooves 23 are arranged on the outer wall of the rotating rod 22, the rotating rod 22 is rotated by the motor 21, the movable rod 3 and the stirring rod 5 are rotated by the rotating of the rotating rod 22, so that the raw materials in the reaction kettle 1 are stirred by the stirring rod 5, and the movable rod 3 drives the stirring rod 5 to move up and down by cooperating with the guide groove 4.

[0036] The movable rod 3 comprises a movable ring 31, a plurality of guide rods 32 are fixedly arranged on the outer wall of the movable ring 31, a plurality of sliding blocks 33 are fixedly arranged on the inner wall of the movable ring 31, the sliding blocks 33 are located in the sliding grooves 23 and slidably cooperate with the inner wall of the sliding grooves 23, the rotating rod 22 drives the movable ring 31 and the guide rods 32 to rotate synchronously by the cooperation of the sliding blocks 33 and the sliding grooves 23, and the movable ring 31 can move up and down along the axial direction of the rotating rod 22.

[0037] The guide groove 4 is in the shape of a wave, the guide groove 4 has a plurality of protrusions and recesses, the guide rods 32 are slidably arranged on the inner wall of the guide groove 4 away from the movable ring 31, when the rotating rod 22 drives the movable ring 31 and the guide rods 32 to rotate synchronously, the guide rods 32 slide along the inner wall of the guide groove 4 and pass through the protrusions and recesses continuously, so as to drive the movable ring 31 to move up and down by the guide rods 32.

[0038] The outer wall of the driving rod 2 is fixedly provided with a guide piece 6, the upper end of the stirring rod 5 is inserted into the guide piece 6 and fixedly provided with a guide block 7, the guide block 7 slidably cooperates with the inner wall of the guide piece 6, when the stirring rod 5 moves up, the guide block 7 slides along the inner wall of the guide piece 6, so as to drive the stirring rod 5 to rotate, at this time, the raw materials in the reaction kettle 1 are stirred by the stirring rod 5 while being turned up and down.

[0039] The outer wall of the reaction kettle 1 is fixedly provided with a constant temperature heating jacket 8, the reaction kettle 1 is heated by the constant temperature heating jacket 8.

[0040] The specific working principle is: first, the raw materials are poured into the reaction kettle 1, then the driving rod 2 is started to drive the movable rod 3 to rotate, and the movable rod 3 slides along the inner wall of the guide groove 4, so as to drive the movable rod 3 to move up and down with the stirring rod 5, when the stirring rod 5 moves up, the guide block 7 slides along the inner wall of the guide piece 6, so as to drive the stirring rod 5 to rotate, at this time, the raw materials in the reaction kettle 1 are stirred by the stirring rod 5 while being turned up and down, so that the raw materials are mixed better.

[0041] Example two, refer to Figs. 2-3, based on the same idea as the above embodiment one, the 2,6-dimethyl piperazine dihydrochloride preparation constant temperature reaction device further comprises:

[0042] The stirring rod 5 is vertically rotatably arranged on the guide rod 32 through a bearing, and the lower end of the stirring rod 5 penetrates through the guide rod 32 and is fixedly provided with a plurality of stirring blades 51; when the guide rod 32 is rotated by the movable ring 31, the stirring rod 5 is synchronously rotated, and the stirring blades 51 are rotated by the stirring rod 5 to stir the raw materials in the reaction kettle 1.

[0043] The guide 6 comprises a plurality of L-shaped rods 61, the number of the L-shaped rods 61 corresponds to the vertical direction of the stirring rod 5, one end of the L-shaped rod 61 is fixedly connected with the outer wall of the upper end of the rotating rod 22, the other end of the L-shaped rod 61 is provided with a spiral groove 62, the upper end of the stirring rod 5 is movably inserted into the spiral groove 62, and the guide block 7 is in sliding fit with the inner wall of the spiral groove 62; when the stirring rod 5 moves up and down, the guide block 7 is slid along the inner wall of the spiral groove 62, so that the stirring rod 5 drives the stirring blades 51 to rotate.

[0044] Specific working principle is: when the guide rod 32 is rotated by the movable ring 31, the stirring rod 5 is synchronously rotated, and the stirring blades 51 are rotated by the stirring rod 5 to stir the raw materials in the reaction kettle 1, and when the stirring rod 5 moves up and down, the guide block 7 is slid along the inner wall of the spiral groove 62, so that the stirring rod 5 drives the stirring blades 51 to rotate.

[0045] Embodiment three, refer to Fig. 2 , based on the same idea as the above embodiment one, the 2,6-dimethyl piperazine dihydrochloride preparation constant temperature reaction device further comprises:

[0046] The inner side of the constant-temperature heating jacket 8 is provided with a plurality of electric heating plates 81, and the constant-temperature heating jacket 8 is provided with a temperature sensor for monitoring the temperature of the reaction kettle 1; it should be noted that the temperature sensor adopts an existing device.

[0047] Specific working principle is: the electric heating plate 81 is convenient for constant-temperature heating of the reaction kettle 1, and the temperature of the reaction kettle 1 is detected by the temperature sensor.

[0048] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A constant temperature reaction device for preparing 2,6-dimethylpiperazine dihydrochloride, comprising a reaction kettle (1), characterized in that: The inside of the reaction kettle (1) is rotatably provided with a driving rod (2), the outer wall of the driving rod (2) is movably sleeved with a movable rod (3), the inner wall of the reaction kettle (1) is provided with a guide groove (4), the end of the movable rod (3) is slidably connected with the inner wall of the guide groove (4), a stirring rod (5) is rotatably arranged on the movable rod (3), a guide piece (6) is fixedly arranged on the outer wall of the driving rod (2), the upper end of the stirring rod (5) is inserted into the guide piece (6) and fixedly provided with a guide block (7), the guide block (7) is slidably connected with the inner wall of the guide piece (6), and the outer wall of the reaction kettle (1) is fixedly sleeved with a constant temperature heating sleeve (8).

2. The 2,6-dimethylpiperazine dihydrochloride production thermostatic reaction device according to claim 1, characterized in that: The top of the reaction kettle (1) is fixedly connected with a feeding pipe (11), the bottom of the reaction kettle (1) is fixedly connected with a discharging pipe (12), and the discharging pipe (12) is provided with a control valve (13).

3. The 2,6-dimethylpiperazine dihydrochloride thermostatic reaction device for preparation according to claim 1, characterized in that: The driving rod (2) comprises a motor (21) and a rotating rod (22), the motor (21) is fixedly arranged on the top of the reaction kettle (1), the rotating shaft of the motor (21) is inserted into the reaction kettle (1) and fixedly connected with the upper end of the rotating rod (22), and the outer wall of the rotating rod (22) is provided with a plurality of sliding grooves (23).

4. The 2,6-dimethylpiperazine dihydrochloride thermostatic reaction device for preparation according to claim 3, characterized in that: The movable rod (3) comprises a movable ring (31), a plurality of guide rods (32) are fixedly arranged on the outer wall of the movable ring (31), and a plurality of sliding blocks (33) are fixedly arranged on the inner wall of the movable ring (31).

5. The 2,6-dimethylpiperazine dihydrochloride thermostatic reaction device for preparation according to claim 4, characterized in that: The guide groove (4) is in a wave shape, the guide groove (4) has a plurality of protrusions and recesses, and the end of the guide rod (32) away from the movable ring (31) is slidably connected with the inner wall of the guide groove (4).

6. The 2,6-dimethylpiperazine dihydrochloride thermostatic reaction device for preparation according to claim 4, characterized in that: The stirring rod (5) is vertically rotatably arranged on the guide rod (32) through a bearing, and the lower end of the stirring rod (5) penetrates through the guide rod (32) and is fixedly provided with a plurality of stirring blades (51).

7. The 2,6-dimethylpiperazine dihydrochloride thermostatic reaction device for preparation according to claim 3, characterized in that: The guide piece (6) comprises a plurality of L-shaped rods (61), the number of the L-shaped rods (61) corresponds to the vertical direction of the stirring rod (5), one end of the L-shaped rod (61) is fixedly connected with the outer wall of the upper end of the rotating rod (22), the other end of the L-shaped rod (61) is provided with a spiral groove (62), the upper end of the stirring rod (5) is movably inserted into the spiral groove (62), and the guide block (7) is slidably connected with the inner wall of the spiral groove (62).

8. The 2,6-dimethylpiperazine dihydrochloride thermostatic reaction device for preparation according to claim 1, characterized in that: The inner side of the constant temperature heating sleeve (8) is provided with a plurality of electric heating plates (81), and the constant temperature heating sleeve (8) is provided with a temperature sensor for monitoring the temperature of the reaction kettle (1).

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