Combined stirring equipment for cyanogen diester production

Abstract

The utility model discloses combined stirring equipment for cyanogen diester production, which comprises a reaction kettle, a processing bracket, a stirring gear box, a stirring driver and a stirring shaft tube, and relates to the technical field of cyanogen diester production, the stirring gear box and the stirring shaft tube are driven by the stirring driver to further drive a rotary stirring pin and a stirring lifting shaft rod, and the stirring lifting shaft rod is driven by the stirring driver to rotate. According to the reaction kettle, lifting and dead-corner-free stirring of the stirring blades in the reaction kettle are realized, the design can ensure that materials are uniformly mixed in the reaction kettle, the production efficiency and the product quality are improved, and the raw materials can be automatically drained to the inner side of the circular ring feeding pipe from the raw material box one by one through the design of the shunting feeding pipe and the S-shaped drainage pipe; and then uniform feeding is conducted through the transfer siphon and the L-shaped feeding pipe, manual intervention is reduced through the automatic flow dividing and feeding system, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cyanodiester production, in particular to combined stirring equipment for cyanodiester production. Background Art

[0002] Pregabalin (PGB) is a new type of γ-aminobutyric acid (GABA) receptor agonist developed by a pharmaceutical company in the world. It is an analog of the neurotransmitter GABA, is fat-soluble, can pass through the blood-brain barrier, and effectively control neuropathic pain. It is an anti-anxiety, neuralgia and epilepsy drug with good therapeutic effects and has good market prospects.

[0003] As an intermediate of pregabalin, the quality and production efficiency of cyanodiester directly affect the quality and production efficiency of pregabalin. The reaction kettle is required to be provided with a droplet inlet, a nitrogen inlet and a stirring device respectively under nitrogen protection and room temperature overnight, but the coordination degree of droplet addition, nitrogen inlet and stirring operation is low, which is not conducive to the full and uniform progress of the chemical reaction. In view of this, the above problems were studied in depth, and this case was produced. Utility Model Content

[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions: a combined stirring device for cyanodiester production, comprising: a reactor, a processing support, a stirring gear box, a stirring driving machine and a stirring shaft tube, the reactor is installed on the processing support, the stirring shaft tube is inserted on the reactor through a bearing, the stirring gear box is sleeved on the stirring shaft tube, the driving end of the stirring driving machine is connected to the stirring gear box, a lifting stirring structure is installed on the stirring shaft tube, and a uniform extrusion feeding structure is installed on the reactor;

[0005] The lifting stirring structure comprises: a stirring lifting shaft rod, a lifting stirring support block, two pairs of lifting support hydraulic push rods, a plurality of rotating stirring pins, a set sealing ring block and a stirring blade;

[0006] Two pairs of lifting support hydraulic push rods are installed in parallel on the reactor, the lifting stirring support blocks are installed on the pushing ends of the two pairs of lifting support hydraulic push rods, the stirring lifting shaft rod is inserted on the lifting stirring support block through a bearing, and the stirring lifting shaft rod is movably inserted on the inner side of the stirring shaft tube, the stirring shaft tube is provided with a plurality of stirring pin grooves, the stirring lifting shaft rod is provided with a plurality of stirring pin holes, a plurality of rotating stirring pins are respectively inserted on the inner sides of a plurality of stirring pin holes, and a plurality of rotating stirring pins are respectively movably inserted on the inner sides of a plurality of stirring pin grooves, the sleeve sealing ring block is installed on the stirring lifting shaft rod and the stirring shaft tube, and the stirring blade is installed on the stirring lifting shaft rod;

[0007] It should be noted that, in the above, the operation of the stirring drive motor on the reactor drives the operation of the stirring gearbox on the driving end of the stirring drive motor, which drives the stirring shaft tube inside it through the stirring gearbox, and rotates a plurality of rotating stirring pins inside the stirring shaft tube, and drives the stirring lifting shaft rod to rotate through a plurality of rotating stirring pins, and drives the lifting and mixing support blocks on the pushing ends of the two pairs of lifting and mixing support hydraulic push rods to rotate through the lifting and mixing support blocks, and drives the stirring lifting shaft rod on it to rotate through the stirring lifting shaft rod, and drives the stirring blades on it to rotate through the stirring lifting shaft rod, and adjusts the height of the stirring blades inside the reactor to achieve lifting and mixing without dead angles.

[0008] Preferably, the uniform extrusion feeding structure comprises: a plurality of circular feeding pipes, a split feeding pipe, a plurality of transfer siphons, a plurality of L-shaped feeding pipes, a feeding pump, a plurality of raw material boxes and an S-shaped drainage pipe;

[0009] Several circular feeding pipes are evenly installed on the outside of the reactor, several transfer siphon pipes are respectively connected to the paired circular feeding pipes on both sides, several L-shaped feeding pipes are respectively inserted on several circular feeding pipes, and several L-shaped feeding pipes are evenly inserted on the reactor, the feeding pump is installed on the diversion feeding pipe, the S-shaped drainage pipe is installed on the feeding pump, and the S-shaped drainage pipe is connected to the circular feeding pipe, and the diversion feeding pipe is connected to several raw material boxes;

[0010] It should be noted that, in the above, the feeding pump is connected to several raw material boxes one by one through the diversion feeding pipe, the raw materials are drained to the inner side of the circular feeding pipe through the S-shaped drainage pipe, and the raw materials are drained downward one by one through the siphon principle through several transfer siphon pipes. When the circular feeding pipe at the lowest end is full, the raw materials inside the several circular feeding pipes are evenly fed through the siphon principle through several L-shaped feeding pipes, thereby achieving multi-layer uniform feeding, mixing and stirring.

[0011] Preferably, a pressure relief valve is provided on the reactor.

[0012] Preferably, a gas injection port is provided on the reactor.

[0013] Preferably, a temperature sensor is provided inside the reactor.

[0014] Preferably, the reactor is provided with an electric heating tube.

[0015] The utility model provides a combined stirring device for the production of cyanodiester. It has the following beneficial effects: the combined stirring device for the production of cyanodiester drives the stirring gear box and the stirring shaft tube through a stirring driving machine, and then drives the rotating stirring pin and the stirring lifting shaft rod, so as to achieve the stirring without dead angles when the stirring blades are lifted and lowered in the reactor. This design can ensure that the materials are evenly mixed in the reactor, improves production efficiency and product quality, and the design of the diversion feeding pipe and the S-shaped drainage pipe enables the raw materials to be automatically drained one by one from the raw material box to the inner side of the circular feeding pipe, and then evenly fed through the transfer siphon and the L-shaped feeding pipe. This automatic diversion and feeding system reduces manual intervention and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front and cross-section of a combined stirring device for producing cyanodiester described in the utility model.

[0017] Figure 2 for Figure 1 A partial enlargement of “A”.

[0018] Figure 3 It is a top view and a cross-sectional schematic diagram of a combined stirring device for producing cyanodiester described in the utility model.

[0019] In the figure: 1. Reactor; 2. Agitation gear box; 3. Agitation drive motor; 4. Agitation shaft tube; 5. Agitation lifting shaft rod; 6. Agitation lifting support block; 7. Lifting support hydraulic push rod; 8. Rotating agitation pin; 9. Set sealing ring block; 10. Agitation blade; 11. Ring feeding pipe; 12. Diverter feeding pipe; 13. Transfer siphon; 14. L-type feeding pipe; 15. Feeding pump; 16. Raw material box; 17. S-type drainage pipe. DETAILED DESCRIPTION

[0020] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0021] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control. Example

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-3As shown, the reactor 1 is installed on the processing bracket, the stirring shaft tube 4 is inserted on the reactor 1 through a bearing, the stirring gear box 2 is sleeved on the stirring shaft tube 4, the driving end of the stirring driving machine 3 is connected to the stirring gear box 2, the stirring shaft tube 4 is installed with a lifting stirring structure, and the reactor 1 is installed with a uniform extrusion feeding structure; the lifting stirring structure includes: a stirring lifting shaft rod 5, a lifting stirring support block 6, two pairs of lifting support hydraulic push rods 7, a plurality of rotating stirring pins 8, a sleeve sealing ring block 9 and a stirring blade 10; the two pairs of lifting support hydraulic push rods The rods 7 are installed on the reactor 1 in parallel in pairs, the lifting stirring support blocks 6 are installed on the pushing ends of the two pairs of lifting support hydraulic push rods 7, the stirring lifting shaft rod 5 is inserted on the lifting stirring support block 6 through a bearing, and the stirring lifting shaft rod 5 is movably inserted on the inner side of the stirring shaft tube 4, the stirring shaft tube 4 is provided with a plurality of stirring pin grooves, the stirring lifting shaft rod 5 is provided with a plurality of stirring pin holes, a plurality of the rotating stirring pins 8 are respectively inserted on the inner sides of a plurality of the stirring pin holes, and a plurality of the rotating stirring pins 8 are respectively movably inserted in the inner sides of a plurality of the stirring pin grooves. The set sealing ring block 9 is installed on the stirring lifting shaft 5 and the stirring shaft tube 4, and the stirring blade 10 is installed on the stirring lifting shaft 5; the uniform extrusion feeding structure includes: a plurality of circular feeding pipes 11, a split feeding pipe 12, a plurality of transfer siphons 13, a plurality of L-shaped feeding pipes 14, a feeding pump 15, a plurality of raw material boxes 16 and an S-shaped drainage pipe 17; a plurality of the circular feeding pipes 11 are evenly installed on the outside of the reactor 1, a plurality of the transfer siphons 13 are respectively connected to the paired circular feeding pipes 11 on both sides, and a plurality of the L-shaped The feeding pipes 14 are respectively inserted on several of the circular feeding pipes 11, and several of the L-shaped feeding pipes 14 are evenly inserted on the reactor 1, the feeding pump 15 is installed on the diversion feeding pipe 12, the S-shaped drainage pipe 17 is installed on the feeding pump 15, and the S-shaped drainage pipe 17 is connected to the circular feeding pipe 11, and the diversion feeding pipe 12 is connected to several of the raw material boxes 16; the reactor 1 is provided with a pressure relief valve; the reactor 1 is provided with a gas injection port; the inner side of the reactor 1 is provided with a temperature sensor; the reactor 1 is provided with an electric heating pipe.

[0023] According to the attached Figure 1-3It is concluded that the stirring driving machine 3 on the reactor 1 is running, driving the stirring gear box 2 on the driving end of the stirring driving machine 3 to run, driving the stirring shaft tube 4 inside thereof through the stirring gear box 2, rotating a plurality of rotating stirring pins 8 inside the stirring shaft tube 4, rotating the stirring lifting shaft rod 5 through a plurality of rotating rotating stirring pins 8, and driving the lifting stirring support block 6 on the pushing end of the two pairs of lifting support hydraulic push rods 7 to extend and retract through the two pairs of lifting support hydraulic push rods 7, driving the stirring lifting shaft rod 5 on it to rotate through the lifting stirring support block 6, and driving the stirring blade 10 on it to rotate through the stirring lifting shaft rod 5. The height of the stirring blade 10 on the inner side of the reactor 1 is changed to adjust the height, so as to achieve lifting and lowering without dead angle stirring and mixing; the feeding pump 15 is connected with a plurality of raw material boxes 16 one by one through the diversion feeding pipe 12 for drainage, the raw materials are drained to the inner side of the circular feeding pipe 11 through the S-shaped drainage pipe 17, and the raw materials are drained downward one by one through the siphon principle through a plurality of transfer siphon pipes 13. When the circular feeding pipe 11 at the lowest end is full, the raw materials inside the plurality of circular feeding pipes 11 are evenly fed through the siphon principle through a plurality of L-shaped feeding pipes 14, so as to achieve multi-layer uniform feeding, mixing and stirring.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined stirring device for producing cyanodiester, comprising: A reactor, a processing support, a stirring gear box, a stirring drive motor and a stirring shaft tube, characterized in that the reactor is mounted on the processing support, the stirring shaft tube is inserted into the reactor through a bearing, the stirring gear box is sleeved on the stirring shaft tube, the driving end of the stirring drive motor is connected to the stirring gear box, a lifting stirring structure is installed on the stirring shaft tube, and a uniform extrusion feeding structure is installed on the reactor; The lifting stirring structure comprises: a stirring lifting shaft rod, a lifting stirring support block, two pairs of lifting support hydraulic push rods, a plurality of rotating stirring pins, a set sealing ring block and a stirring blade; Two pairs of lifting support hydraulic push rods are installed in parallel on the reactor, the lifting and stirring support blocks are installed on the pushing ends of the two pairs of lifting support hydraulic push rods, the stirring lifting shaft is inserted on the lifting and stirring support blocks through bearings, and the stirring lifting shaft is movably inserted on the inner side of the stirring shaft tube, the stirring shaft tube is provided with a plurality of stirring pin grooves, the stirring lifting shaft is provided with a plurality of stirring pin holes, a plurality of rotating stirring pins are respectively inserted on the inner sides of a plurality of stirring pin holes, and a plurality of rotating stirring pins are respectively movably inserted on the inner sides of a plurality of stirring pin grooves, the set sealing ring block is installed on the stirring lifting shaft and the stirring shaft tube, and the stirring blade is installed on the stirring lifting shaft.

2. A combined stirring device for producing cyanodiester according to claim 1, characterized in that: The uniform extrusion feeding structure comprises: a plurality of circular feeding pipes, a diversion feeding pipe, a plurality of transfer siphons, a plurality of L-shaped feeding pipes, a feeding pump, a plurality of raw material boxes and an S-shaped drainage pipe; Several circular feeding pipes are evenly installed on the outside of the reactor, several transfer siphon tubes are respectively connected to the paired circular feeding pipes on both sides, several L-shaped feeding pipes are respectively inserted on several circular feeding pipes, and several L-shaped feeding pipes are evenly inserted on the reactor, the feeding pump is installed on the diversion feeding pipe, the S-shaped drainage pipe is installed on the feeding pump, and the S-shaped drainage pipe is connected to the circular feeding pipe, and the diversion feeding pipe is connected to several raw material boxes.

3. A combined stirring device for producing cyanodiester according to claim 2, characterized in that: The reactor is provided with a pressure relief valve.

4. A combined stirring device for producing cyanodiester according to claim 3, characterized in that: The reactor is provided with a gas injection port.

5. A combined stirring device for producing cyanodiester according to claim 4, characterized in that: A temperature sensor is arranged inside the reactor.

6. The combined stirring device for producing cyanodiester according to claim 5, characterized in that: The reactor is provided with an electric heating tube.

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