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CN-121972083-A - Magnetic stirring autoclave

CN121972083ACN 121972083 ACN121972083 ACN 121972083ACN-121972083-A

Abstract

The application relates to the technical field of magnetic stirring and discloses a magnetic stirring autoclave which comprises a autoclave body, wherein a connecting seat is arranged at the top of the autoclave body, a separation sleeve is arranged at the top of the connecting seat, a motor mechanism is arranged at the top of the separation sleeve and provides the original power of the autoclave, a stirring shaft is arranged at the output end of the motor mechanism, one end of the stirring shaft stretches into the interior of the autoclave body and is connected with a stirrer structure, materials in the autoclave body are stirred under the action of magnetic force, internal magnetic steel is arranged in the autoclave body and is connected with the stirring shaft, and a cooling system is arranged in the autoclave body. The state change of magnetorheological fluid in the stirrer is controlled by using a magnetic field to drive the telescopic shell to transversely extend, so that the stirring range can be dynamically and reversibly adjusted along with the strength (rotating speed) of the magnetic field. Effectively increases the stirring volume, eliminates the mixing dead angle of the inner edge of the kettle, and automatically adapts to the process requirements of materials with different viscosities.

Inventors

  • GAO LINGFEI
  • TAN HAO
  • WANG BENCHAO
  • Jiang Runpeng

Assignees

  • 蓬莱禄昊化工机械有限公司

Dates

Publication Date
20260505
Application Date
20260204

Claims (9)

  1. 1. The utility model provides a magnetic stirring autoclave, includes the cauldron body (1), its characterized in that, connecting seat (2) are installed at the top of the cauldron body (1), the top of connecting seat (2) is equipped with spacer sleeve (3), motor mechanism (4) are installed at the top of spacer sleeve (3), and it provides the primitive power of autoclave, (5) are installed to motor mechanism's (4) output, stirring shaft (5) are stretched into the inside stirring of the one end of (5) cauldron body (1) and are connected with stirring sub-structure (6), and it stirs the material in the cauldron body (1) under the effect of magnetic force, the inside of the cauldron body (1) is equipped with interior magnet steel (7), and it is connected with (5) of stirring, the inside of the cauldron body (1) is equipped with cooling system (8) for cool off the inside material of the cauldron body (1).
  2. 2. A magnetic stirring autoclave as claimed in claim 1, characterized in that the motor mechanism (4) comprises a motor (41), the motor (41) is mounted on the top of the isolation sleeve (3), and the output end of the motor (41) is fixedly connected with an external magnetic steel (42).
  3. 3. The magnetic stirring autoclave according to claim 1, wherein the stirring sub-structure (6) comprises a connecting shaft (61), one end of the connecting shaft (61) is installed on one side of the outer wall of the stirring shaft (5), the other end of the connecting shaft (61) is fixedly connected with a stirring body (62), a built-in cavity (63) is formed in the stirring body (62), magnetorheological fluid (64) is filled in the built-in cavity (63), a sliding groove (65) is formed in one side of the outer wall of the built-in cavity (63), one end of an extending plate (66) is connected to the sliding groove (65) in a sliding manner, a double plate (67) is fixedly connected to the other end of the extending plate (66), and one end of the double plate (67) penetrates through the stirring body (62) and is fixedly connected with a telescopic shell (68).
  4. 4. The magnetic stirring autoclave according to claim 1, wherein the autoclave body (1) is provided with an external heat insulation layer (11) and an internal isolation layer (12), the cooling system (8) is arranged between the heat insulation layer (11) and the isolation layer (12), the cooling system (8) comprises a bonding plate (81), the bonding plate (81) is arranged on the outer wall of the isolation layer (12), a surrounding channel (82) is arranged in the bonding plate (81), the input end of the surrounding channel (82) is communicated with the output end of a water pump (83), the output end of the surrounding channel (82) is communicated with the input end of the water pump (83), and the water pump (83) is arranged outside the autoclave body (1).
  5. 5. A magnetically stirred autoclave as claimed in claim 4, wherein a plurality of longitudinal channels (821) are provided in the interior of the surrounding channel (82), the interior of the longitudinal channels (821) being rotatably connected with a turning auger (822).
  6. 6. The magnetic stirring autoclave according to claim 4, wherein the bonding plate (81) is made of one of silicon carbide and boron nitride.
  7. 7. A magnetic stirring autoclave as claimed in claim 3, wherein the corners of the connecting shaft (61), stirring body (62) and telescopic shell (68) are chamfered.
  8. 8. A magnetic stirring autoclave as claimed in claim 3, wherein one end of a spring (661) is fixedly connected to one side of the outer wall of the extension plate (66), the other end of the spring (661) is fixedly connected to the inside of the stirring body (62), and a slope (662) is formed on one side of the outer wall of the extension plate (66).
  9. 9. A magnetically stirred autoclave according to claim 3, characterized in that the cross-sectional area of the internal cavity (63) is from small to large, the edge of the sliding groove (65) is provided with a soft film (651) which isolates the magnetorheological fluid (64) from the extension plate (66), and the soft film (651) is made of one of polyurethane, silicone rubber and natural rubber.

Description

Magnetic stirring autoclave Technical Field The invention relates to the technical field of magnetic stirring, in particular to a magnetic stirring autoclave. Background The magnetic stirring autoclave is used as core equipment in the fields of chemical industry, pharmacy and material synthesis, and the performance of the magnetic stirring autoclave is directly related to the reaction efficiency, the product quality and the energy consumption level. The traditional magnetic stirring autoclave realizes the contactless transmission of power through a magnetic coupler, solves the fundamental problem of shaft seal leakage, and ensures the operation safety in a high-pressure environment. However, in long-term practical application, there are still a number of bottleneck problems to be solved in the prior art: first, in terms of stirring and mixing, the structure and size of a conventional stirring blade are often constant. This means that in the same reaction process, when the viscosity of the material changes from low viscosity to high viscosity with the progress of the reaction, or when the process requirement changes the mixing intensity, the fixed stirrer cannot be adaptively adjusted, so that the mixing efficiency is reduced, and a dead angle of stirring occurs. Secondly, in terms of temperature control, the currently mainstream jacketed or coil cooling systems have the problems of obvious thermal hysteresis and low heat transfer efficiency. The heat exchange device relies on the passive flow of a cooling medium in a flow channel, and mainly performs heat exchange in a laminar flow or weak turbulence state, and has thicker heat transfer boundary layer and large thermal resistance. This results in slow system response, insufficient temperature control accuracy, and high medium flow rate and flow rate, and high energy consumption, which are often required to achieve a predetermined cooling effect. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a magnetic stirring autoclave, which solves the problem that a fixed stirrer cannot be adaptively adjusted when the process requirement changes the mixing strength. The magnetic stirring autoclave comprises an autoclave body, wherein a connecting seat is arranged at the top of the autoclave body, a separation sleeve is arranged at the top of the connecting seat, a motor mechanism is arranged at the top of the separation sleeve and is used for providing the original power of the autoclave, a stirring shaft is arranged at the output end of the motor mechanism, one end of the stirring shaft stretches into the inside of the autoclave body and is connected with a stirring structure which is used for stirring materials in the autoclave body under the action of magnetic force, internal magnetic steel is arranged in the autoclave body and is connected with the stirring shaft, and a cooling system is arranged in the autoclave body and is used for cooling the materials in the autoclave body. Preferably, the motor mechanism comprises a motor, the motor is arranged at the top of the isolation sleeve, and the output end of the motor is fixedly connected with external magnetic steel. Preferably, the stirring rod structure comprises a connecting shaft, one end of the connecting shaft is arranged on one side of the outer wall of the stirring shaft, the other end of the connecting shaft is fixedly connected with a stirring body, an inner cavity is formed in the stirring body, magnetorheological liquid is filled in the inner cavity, a sliding groove is formed in one side of the outer wall of the inner cavity, one end of an extending plate is connected in a sliding mode in the sliding groove, the other end of the extending plate is fixedly connected with a double plate, and one end of the double plate penetrates through the stirring body and is fixedly connected with a telescopic shell. Preferably, the kettle body is equipped with outside heat preservation and inside isolation layer, cooling system establishes between heat preservation and isolation layer, cooling system includes the laminating board, the outer wall at the isolation layer is installed to the laminating board, the inside of laminating board is equipped with the passageway of encircleing, the output of passageway's input intercommunication water pump is encircleed, the output of passageway intercommunication water pump is encircleed, the water pump sets up in the kettle body outside. Preferably, a plurality of longitudinal channels are formed in the surrounding channel, and a turnover auger is rotatably connected to the inside of the longitudinal channels. Preferably, the material of the bonding plate is one of silicon carbide and boron nitride. Preferably, the connection shaft, the stirring body and the edges and corners of the telescopic shell are chamfered. Preferably, one end of a spring is fixedly connected to one side of the outer wall of the extension plate, the other end of th