Reaction device for copolymer production

Abstract

The utility model belongs to the technical field of copolymer reaction equipment, and particularly relates to a reaction device for copolymer production, which comprises a reaction kettle, a stirring device and a defoaming device, the defoaming device comprises an ultrasonic defoaming rod and a plurality of needle discs, the outer diameter of each needle disc is matched with the inner section of the reaction kettle, and the needle discs are horizontally and fixedly arranged at the upper part of the inner side of the reaction kettle; a round hole is formed in the center of the needle disc, the stirring paddle penetrates through the round hole and is not in contact with the needle disc, a mounting hole is formed in the top of the reaction kettle, a through hole is formed in the position, corresponding to the mounting hole, of the needle disc, and the ultrasonic defoaming rod penetrates through the mounting hole and the through hole and is vertically arranged in the reaction kettle. Reaction materials are uniformly stirred by the stirring paddle, so that the materials are fully reacted, and meanwhile, the danger caused by bubbling out of the reaction kettle is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of copolymer reaction equipment, and in particular relates to a reaction device for copolymer production. Background Art

[0002] During the preparation of copolymers, a reactor is required to carry out the polymerization reaction. During the polymerization reaction, the reaction liquid will produce a large amount of foam, causing the stirring paddle to stir the reaction materials unevenly, resulting in insufficient reaction of the materials and affecting the reaction quality. At the same time, the formation and emergence of bubbles are dangerous. Therefore, a reaction device for copolymer production is needed to solve the above problems. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a reaction device for copolymer production, including a reactor, a stirring device and a defoaming device. The top of the reactor is provided with a feed pipe, the bottom of the reactor is provided with a discharge pipe, the outer side of the reactor is provided with a heat exchange jacket, the stirring device includes a motor and a stirring paddle, the stirring paddle is rotatably installed at the inner center of the reactor, and the motor drives the stirring paddle to rotate, the defoaming device includes an ultrasonic defoaming rod and several needle disks, the outer diameter of the needle disk matches the inner cross-section of the reactor, and the needle disk is horizontally fixed at the upper inner part of the reactor, a circular hole is provided in the center of the needle disk, the stirring paddle passes through the circular hole and does not contact the needle disk, the top of the reactor is provided with a mounting hole, the needle disk is provided with a through hole at a position corresponding to the mounting hole, and the ultrasonic defoaming rod passes through the mounting hole and the through hole and is vertically arranged in the reactor.

[0004] Furthermore, the heat exchange jacket is provided with a heat exchange inlet and a heat exchange outlet for the heat exchange medium to flow in and out to control the temperature in the reactor.

[0005] Furthermore, the circular disk of the needle disk is in a grid shape, and the needles of the needle disk are vertically fixed on the bottom surface of the needle disk to eliminate foam generated by the copolymer reaction.

[0006] Furthermore, an elastic sealing ring is provided on the inner wall of the mounting hole, which is used to install the ultrasonic defoaming rod into the reactor and fix the ultrasonic defoaming rod to prevent it from shaking left and right, while ensuring the sealing of the reactor.

[0007] Furthermore, a horizontal baffle is fixed on the top of the ultrasonic defoaming rod. The outer diameter of the horizontal baffle is larger than the aperture of the mounting hole and is used to fix the vertical position of the ultrasonic defoaming rod in the reactor.

[0008] The present invention also includes other devices or components that enable the copolymer production reaction device to operate normally, which are conventional technical means in the field. In addition, the reaction kettle and ultrasonic defoaming rod not limited in the present invention are both conventional technical means in the field.

[0009] The working principle of the utility model is that when the device is used, the reacting materials are fed into the reactor from the feed pipe. During the reaction, the ultrasonic defoaming rod uses the principle of sound waves to accelerate the rupture of bubbles in the reaction liquid. Some bubbles are carried to the liquid surface of the reaction liquid as the stirring paddle rotates, and the needle disk pierces the bubbles to achieve the purpose of defoaming.

[0010] The beneficial effects of the utility model are that the device has a simple structure and is easy to operate. The ultrasonic defoaming rod and the needle disk eliminate bubbles generated by the reaction, and the stirring paddle stirs the reaction materials evenly, so that the materials react fully and the danger of bubbles escaping from the reactor is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 It is a structural schematic diagram of the needle disc in the utility model.

[0014] Figure 3 It is a structural schematic diagram of the mounting hole in the utility model. DETAILED DESCRIPTION

[0015] The present invention is described below in conjunction with the accompanying drawings and specific embodiments of the present invention. The description herein is intended only to explain the present invention and is not intended to limit the present invention. Based on the embodiments of the present invention, any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without creative work to all other embodiments obtained based on the embodiments of the present invention shall be included within the scope of protection of the present invention.

[0016] Example

[0017] like Figures 1 to 3 As shown, the utility model provides a reaction device for copolymer production, including a reactor 1, a stirring device and a defoaming device. A feed pipe 2 is provided on the top of the reactor 1, a discharge pipe 3 is provided on the bottom of the reactor 1, and a heat exchange jacket 4 is provided on the outer side of the reactor 1. The stirring device includes a motor 5 and a stirring paddle 6. The stirring paddle 6 is rotatably installed at the inner center of the reactor 1, and the motor 5 drives the stirring paddle 6 to rotate. The defoaming device includes an ultrasonic defoaming rod 7 and two parallel needle disks 8. The outer diameter of the needle disk 8 matches the inner cross-section of the reactor 1, and the needle disk 8 is horizontally fixed on the upper inner part of the reactor 1. A circular hole 9 is provided in the center of the needle disk 8. The stirring paddle 6 passes through the circular hole 9 and does not contact the needle disk 8. A mounting hole 10 is provided on the top of the reactor 1, and a through hole 11 is provided at a position corresponding to the mounting hole 10. The ultrasonic defoaming rod 7 passes through the mounting hole 10 and the through hole 11 and is vertically arranged in the reactor 1.

[0018] As a further measure of the present invention, the heat exchange jacket 4 is provided with a heat exchange inlet 12 and a heat exchange outlet 13, which are used for the heat exchange medium to enter and exit to control the temperature in the reactor 1; the circular disk of the needle disk 8 is grid-shaped, and the needles of the needle disk 8 are vertically fixed on the bottom surface of the needle disk 8, which are used to eliminate the foam generated by the copolymer reaction; the inner wall of the mounting hole 10 is provided with an elastic sealing ring 14, which is used to install the ultrasonic defoaming rod 7 into the reactor 1 and fix the ultrasonic defoaming rod 7 to prevent it from shaking left and right, while ensuring the sealing of the reactor 1; a horizontal baffle 15 is fixed on the top of the ultrasonic defoaming rod 7, and the outer diameter of the horizontal baffle 15 is larger than the aperture of the mounting hole 10, which is used to fix the vertical position of the ultrasonic defoaming rod 7 in the reactor 1.

[0019] The working principle of the present invention is that when the device is used, the reacting material is fed into the reactor 1 from the feed pipe 2. During the reaction, the ultrasonic defoaming rod 7 uses the principle of sound waves to accelerate the rupture of bubbles in the reaction liquid. Some bubbles are carried to the liquid surface of the reaction liquid as the stirring paddle 6 rotates, and the needle disk 8 pierces the bubbles to achieve the purpose of defoaming.

[0020] While the embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A reaction device for copolymer production, comprising a reactor, a stirring device and a defoaming device, characterized in that: The top of the reactor is provided with a feed pipe, the bottom of the reactor is provided with a discharge pipe, the outer side of the reactor is provided with a heat exchange jacket, the stirring device includes a motor and a stirring paddle, the stirring paddle is rotatably installed at the inner center of the reactor, and the motor drives the stirring paddle to rotate, the defoaming device includes an ultrasonic defoaming rod and several needle disks, the outer diameter of the needle disk matches the inner cross-section of the reactor, and is horizontally fixed on the upper inner part of the reactor, a circular hole is provided in the center of the needle disk, the stirring paddle passes through the circular hole and does not contact the needle disk, the top of the reactor is provided with a mounting hole, the needle disk is provided with a through hole at a position corresponding to the mounting hole, and the ultrasonic defoaming rod is vertically arranged in the reactor through the mounting hole and the through hole.

2. A copolymer production reaction device according to claim 1, characterized in that: The heat exchange jacket is provided with a heat exchange inlet and a heat exchange outlet.

3. The copolymer production reaction device according to claim 1, characterized in that: The circular disk of the needle disk is in a grid shape, and the needles of the needle disk are vertically fixed on the bottom surface of the needle disk.

4. The copolymer production reaction device according to claim 1, characterized in that: An elastic sealing ring is provided on the inner wall of the mounting hole.

5. The copolymer production reaction device according to claim 1, characterized in that: A horizontal baffle is fixedly provided on the top end of the ultrasonic defoaming rod, and the outer diameter of the horizontal baffle is larger than the aperture of the mounting hole.

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