Rotary-cut tubular reactor with feeding from top and magnetic coupling stirring

Abstract

The utility model discloses a magnetic coupling stirring rotary-cut tubular reactor feeding from the top, which comprises outer magnetic steel rotating under the driving of a motor, an inner magnetic steel stirring shaft is arranged in the outer magnetic steel, the inner magnetic steel stirring shaft synchronously rotates under the magnetic action of the outer magnetic steel, an outer magnetic sleeve is wrapped outside the outer magnetic steel, and the outer magnetic sleeve is sleeved outside the outer magnetic steel. A front flange sleeve is arranged outside the inner magnetic steel stirring shaft, and the inner magnetic steel stirring shaft is connected with the dynamic tube reaction cavity through a flange, so that the inner magnetic steel stirring shaft rotates in the closed compression cavity. Compared with traditional mechanical stirring, the top-feeding magnetic coupling stirring rotary-cut tubular reactor has the advantages that mechanical sealing is avoided, so that the risk of cross contamination caused by leakage of lubricating oil is avoided; no mechanical seal, magnetic coupling stirring and rotary-cut tubular reactor flange connection are adopted, so that the reactor can resist high temperature, high pressure, corrosion and other harsh environments.

Description

Technical Field

[0001] The utility model relates to the technical field of tubular reactors, in particular to a rotary cutting tubular reactor with magnetic coupling stirring and feeding from the top. Background Art

[0002] Mechanical seals are easily affected by the materials of auxiliary seals and are not resistant to harsh environments. For example, auxiliary seals such as nitrile rubber, fluororubber, EPDM rubber, and silicone rubber are not resistant to temperatures above 200°C and are not corrosion-resistant. Polytetrafluoroethylene can resist corrosion and high temperatures of 250°C, but will creep. Usually, mechanical seals are injected with lubricating fluid. Once the seal fails, the lubricating fluid is likely to leak into the reaction chamber, and the reacting materials will be contaminated. At the same time, in order to reduce the friction resistance between the seal pairs and protect the dynamic and static rings of the mechanical seal, external cooling water is required for cooling. In addition, mechanical seals have high requirements for processing accuracy and certain installation techniques. In this regard, we propose a rotary cut tubular reactor with magnetic coupling stirring that feeds from the top to solve the above problems. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides a rotary cutting tubular reactor with magnetic coupling stirring and feeding from the top, which solves the problems raised in the background technology.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a rotary cutting tubular reactor with magnetic coupling stirring that feeds from the top, including an outer magnetic steel that rotates under the drive of a motor, an inner magnetic steel stirring shaft is installed in the outer magnetic steel, and the inner magnetic steel stirring shaft rotates synchronously under the magnetic force of the outer magnetic steel, the outer side of the outer magnetic steel is wrapped with an outer magnetic sleeve, the outer side of the inner magnetic steel stirring shaft is provided with a front flange sleeve, and is connected to the dynamic tube reaction chamber through a flange, so that the inner magnetic steel stirring shaft rotates in a closed pressure chamber, and a sealing plug is provided at the sealing point between the outer magnetic steel and the inner magnetic steel stirring shaft, and the sealing plug is sealed by tightening a plug nut, a ferrule joint is provided on one side of the sealing plug, a shaft sleeve is provided on the inner magnetic steel stirring shaft, and the inner magnetic steel stirring shaft is also provided with a bearing, and an O-ring is placed at the sealed interface.

[0005] Preferably, the outer magnetic steel and the inner magnetic steel stirring shaft achieve non-contact rotation through magnetic coupling.

[0006] Preferably, the outer magnetic sleeve is made of non-magnetic material to reduce interference with the magnetic field.

[0007] Preferably, the inner magnetic steel stirring shaft is provided with stirring blades for stirring the substances in the reaction chamber when the inner magnetic steel stirring shaft rotates.

[0008] Preferably, the flange connection between the front flange sleeve and the dynamic tube reaction chamber includes a flange surface, a sealing gasket and fastening bolts to ensure a sealing effect.

[0009] Preferably, the heat generated by the magnetic coupling between the outer magnetic steel and the inner magnetic steel stirring shaft is dissipated by itself or heat exchanged through the reaction chamber.

[0010] Beneficial Effects

[0011] The utility model provides a rotary cut tube reactor with magnetic coupling stirring that is fed from the top. Compared with the prior art, it has the following beneficial effects: compared with the traditional mechanical stirring, there is no mechanical seal, so there is no risk of cross contamination due to lubricating oil leakage; there is no mechanical seal, the magnetic coupling stirring is connected to the rotary cut tube reactor flange, and it is more resistant to harsh environments such as high temperature and high pressure corrosion; the magnetic coupling is fed from the top, and the material itself can be a heat exchange medium, which can consume the heat generated by the rotation, and there is no need for external water cooling to cool the magnetic coupling. This device feeds from the end, and the material can be continuously stirred from the left end to the right end, which is more fully stirred, and can also prevent the material from mixing back, so that the material can reach the ideal flow state as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0013] In the figure: 1. ferrule joint; 2. sealing plug; 3. plug nut; 4. inner magnetic steel stirring shaft; 5. outer magnetic steel; 6. outer magnetic sleeve; 7. front flange sleeve; 8. shaft sleeve; 9. bearing; 10. O-ring. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] The utility model provides two technical solutions: specifically including the following embodiments:

[0016] Example 1

[0017] See also Figure 1A magnetic coupling stirring rotary cutting tubular reactor with top feeding includes an outer magnetic steel 5 rotating under the drive of a motor, an inner magnetic steel stirring shaft 4 is installed in the outer magnetic steel 5, the inner magnetic steel stirring shaft 4 rotates synchronously under the magnetic force of the outer magnetic steel, the outer surface of the outer magnetic steel 5 is wrapped with an outer magnetic sleeve 6, the outer surface of the inner magnetic steel stirring shaft 4 is provided with a front flange sleeve 7, and is connected to a dynamic tube reaction chamber through a flange, the dynamic tube reaction chamber is used to accommodate reaction materials, so that the inner magnetic steel stirring shaft 4 rotates in a closed pressure chamber, and a sealing plug 2 is provided at the sealing portion between the outer magnetic steel 5 and the inner magnetic steel stirring shaft 4, and the sealing plug 2 is connected to the inner magnetic steel stirring shaft 4 through the plug The nut 3 is tightened for sealing. A ferrule joint 1 is provided on one side of the sealing plug 2. The ferrule joint 1 is used to connect the inner magnetic steel stirring shaft 4 with other parts of the reaction chamber to ensure the stability and sealing of the stirring shaft during rotation. A sleeve 8 is provided on the inner magnetic steel stirring shaft 4. The sleeve 8 is used to protect the inner magnetic steel stirring shaft 4 and reduce the friction with other structures. The inner magnetic steel stirring shaft 4 is also provided with a bearing 9. The bearing 9 is used for the inner magnetic steel stirring shaft 4 and allows it to rotate. An O-ring 10 is placed at the sealed interface, which is placed at the interface that needs to be sealed, such as a flange connection or between the shaft and the sleeve, for sealing and preventing leakage.

[0018] Example 2

[0019] Based on Example 1, see Figure 1 As shown, the outer magnetic steel 5 and the inner magnetic steel stirring shaft 4 realize non-contact rotation through magnetic coupling.

[0020] The outer magnetic sleeve 6 is made of non-magnetic conductive material to reduce interference with the magnetic field.

[0021] The inner magnetic steel stirring shaft 4 is provided with stirring blades for stirring the substances in the reaction chamber when the inner magnetic steel stirring shaft 4 rotates.

[0022] The outer magnetic steel 5 and the inner magnetic steel stirring shaft 4 form a magnetic coupling stirrer. The feed port is arranged at the end of the magnetic coupling stirrer, allowing substances to be added into the reaction chamber during the stirring process.

[0023] The flange connection between the front flange sleeve 7 and the dynamic tube reaction chamber includes a flange surface, a sealing gasket and fastening bolts to ensure the sealing effect.

[0024] The heat generated by the magnetic coupling between the outer magnetic steel 5 and the inner magnetic steel stirring shaft 4 is dissipated by itself or heat exchanged through the reaction chamber.

[0025] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0026] When working, magnetic coupling stirring uses the principle of rare earth permanent magnets, like poles repel each other, and opposite poles attract each other, to achieve non-contact rotation, such as Figure 1As shown, the motor drives the rotation of the outer magnetic steel 5, and the inner magnetic steel rotates synchronously with the coupling under the action of magnetic force. The inner magnetic steel is connected to the stirring shaft as a whole, and the front flange sleeve 7 wrapped around the inner magnetic steel shaft is flange-connected to the dynamic tube reaction chamber. The stirring shaft rotates in the closed pressure chamber, and a feed hole is opened at the end of the magnetic coupling stirring, and the magnetic coupler does not require external heat exchange.

[0027] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A top-feeding, magnetically coupled stirring rotary cutting tubular reactor, comprising an external magnetic steel (5) rotating under the drive of a motor, characterized in that: An inner magnetic steel stirring shaft (4) is installed in the outer magnetic steel (5), and the inner magnetic steel stirring shaft (4) rotates synchronously under the magnetic force of the outer magnetic steel. The outer part of the outer magnetic steel (5) is wrapped with an outer magnetic sleeve (6). The outer part of the inner magnetic steel stirring shaft (4) is provided with a front flange sleeve (7), and is connected to the dynamic tube reaction chamber through a flange, so that the inner magnetic steel stirring shaft (4) rotates in the closed pressure chamber. A sealing plug (2) is provided at the sealing point between the outer magnetic steel (5) and the inner magnetic steel stirring shaft (4), and the sealing plug (2) is sealed by tightening the plug nut (3). A ferrule joint (1) is provided on one side of the sealing plug (2). A shaft sleeve (8) is provided on the inner magnetic steel stirring shaft (4). The inner magnetic steel stirring shaft (4) is also provided with a bearing (9), and an O-ring (10) is placed at the sealing interface.

2. The rotary cutting tubular reactor with magnetic coupling stirring and feeding from the top according to claim 1, characterized in that: The outer magnetic steel (5) and the inner magnetic steel stirring shaft (4) achieve non-contact rotation through magnetic coupling.

3. The top-feeding magnetically coupled stirring rotary cutting tubular reactor according to claim 1, characterized in that: The inner magnetic steel stirring shaft (4) is provided with stirring blades for stirring the substances in the reaction chamber when the inner magnetic steel stirring shaft (4) rotates.

4. The top-feeding magnetically coupled stirring rotary cutting tubular reactor according to claim 1, characterized in that: The flange connection between the front flange sleeve (7) and the dynamic tube reaction chamber comprises a flange surface, a sealing gasket and fastening bolts.

5. The top-feeding magnetically coupled stirring rotary cutting tubular reactor according to claim 1, characterized in that: The heat generated by the magnetic coupling between the outer magnetic steel (5) and the inner magnetic steel stirring shaft (4) is dissipated by itself or heat exchanged through the reaction chamber.

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