ROTARY MAGNETIC FIELD MIXER SYSTEM CAPABLE OF ROTATION ON FOUR DIFFERENT AXES.

Abstract

The invention includes an RMF (40) that aims to prevent deformation of the liquid surface during the mixing process and to reduce the mixing time. For this purpose, it is foreseen that the mixing process should be carried out with 4 magnetic fish (30) rotating in symmetrical positions. The design of the mixer core (23) that can provide this prediction was first realized using a magnetic simulation program, and then manufactured together with the windings (22). With the electronic circuit (45) designed specifically for the system, the windings (22) in the mixer system were fed sequentially with a DC power supply (44). A LabVIEW software was developed for sequential control of the windings (43) and determining the frequency of voltage application to a winding (22) and was run on an embedded system (42). In addition, another LabVIEW software was developed and run on the same embedded system (42) that determines the duration of voltage application to each winding (22).When the system is started, it is obtained that two of the four magnetic fins (30) acting as rotors are rotated to the right and the other two to the left, with a 900° distance between them, under the influence of the magnetic force provided by the stator. Thus, the mixing process is made both more homogeneous and faster.

Description

1 TARIFF ROTARY MAGNETIC THAT CAN ROTATE ON FOUR DIFFERENT AXES. FIELD MIXING SYSTEM Technical Area The invention consists of four magnetic fields positioned 900 degrees apart, acting as a rotor. the fish can be turned by rotating two of them to the right and the other two to the left, and thus Rapid mixing while preventing deformation of the liquid surface to be mixed. It involves a novel rotating magnetic field stirrer system that enables the process. State of the Art Magnetic stirring is used to mix liquids in airtight containers. 10 It is necessary. Electromagnetic interference can be applied in three different ways: horizontally, vertically, and horizontally + vertically. This can be achieved by horizontal mixing with a rotating magnetic field (RMF) and vertical mixing. This is achieved with a dynamic magnetic field (TMF). The combination of both magnetic fields... When applied in this way, magneto-hydrodynamic (MHD) mixing also occurs. RMF mixers are essentially axial flux synchronous motors. In this type of mixer, the rotor is 15 either a magnetic fish (a bar magnet with short polarity and low polarity) or metallic It is the fluid itself. There is a physical connection between the rotor and the magnetic field source. It is not present, and as the magnetic field rotates, the rotor follows it. MHD In mixers, not only toroidal flow is achieved with RMF, but also with TMF. It also ensures poloidal flow within the melt (Figure 1). For this purpose, 20 in the MHD mixer. There are two independent coil systems: RMF and TMF, used in MHD mixers. Areas of expertise include liquid phase motion, crystal growth, and solidification of metal alloys. Common in experimental studies where the effect of heat and mass transfer during this process is examined It is used as such. The depression formed on the liquid surface due to the centrifugal force of the rotational motion of the RMF is 25 It is being suppressed downwards by the TMF. Downward movement created by the TMF. The pushing force creates a downward flow near the wall. This downward flow, at the bottom The liquid collides with the surface, changes direction, and creates a rising flow towards the center. The level is pushing the lower part of the deformation upwards. As a result, the liquid 2 The deformation of the surface is mitigated. RMF and TMF are independent of each other. Since it can be controlled, the TMF flow varies according to the degree of deformation of the liquid level. The liquid level can be kept level by adjusting the adjustment. However, electrical solutions like aqueous solutions... In solutions with very low conductivity, only RMF mixers are preferred. This 5 types of mixers are mostly used in the literature for liquid flow and crystal growth applications. It is used. Additionally, rotary mixing is used during continuous casting or in metallic applications. It is applied during the solidification of the melts, and the final product is the ingots. It has been proven to have positive effects on its microstructure. There are two main effects in this process. It can be observed that: Firstly, RMF-induced convection is equivalent to colonic dendritic growth. The latter promotes the transition to axial dendritic growth; the latter, in many cases, is a significant 10 Grain refinement is achieved. However, a solidifying alloy mixing causes macrosegregation (large-scale differences in chemical composition) It has also been shown that this could be the reason. In the invention product RMF mixer, however, from the literature... In contrast, the mixing process is both more homogeneous and faster. This was the goal. In this mixer, four magnetic 15 act as rotors. The fish should be positioned so that there are 900 meters between them, with two fish on the right and the other two on the left. The spinning condition has been achieved. This spinning characteristic eliminates the need for TMF mixers. Deformation of the liquid surface is prevented by mixing without this. This ensures MHD. A mixture, similar to that in blenders, was achieved in a shorter time. In this respect, the invention... The product deviates from the literature. 20 Purpose of the Invention The aim of the invention is to develop a novel rotating magnetic field (RMF) stirring system. to prevent deformation of the liquid surface during the mixing process and to reduce mixing time The goal is to reduce [the amount of mixing]. To achieve this, as described in the literature, the mixing process should only be done in the center. not with one rotating magnetic fish, but with four magnetic fish rotating in symmetrical positions 25 The focus is on achieving this. Among the four magnetic fish that act as rotors... Two of the fish should turn to the right and the other two to the left, so that the angle is 900 degrees. To create a rotating magnetic field, the core of the mixer is manufactured accordingly. The invention involved the creation of RST windings, which were then supplied with DC voltage in the appropriate sequence. The structure, control, and operation of the product are described in the figures below and references to these figures are provided in section 30. This will be understood more clearly thanks to the detailed explanation written by providing it. 3 And therefore, the evaluation should also take these figures and detailed explanations into consideration. It would be appropriate to do so. Figures that will help understand the invention. Figure 1 shows the RMF and TMF mixers located in the magneto-hydrodynamic stirrer (MHD). appearance of parts 5 Figure 2, View of the rotating magnetic field (RMF) stirrer and its components of the invention product. Figure 3, Magnetic fish and the core of the inventive rotating magnetic field stirrer (RMF). the appearance of rotation positions on it Figure 4 shows the block diagram of the inventive rotating magnetic field stirrer (RMF) system. View 10 Explanation of References in Figures 10. Magneto-hydrodynamic stirrer 12. Mobile (moving) magnetic field mixer 20. Rotating magnetic field stirrer 21. Steel ring 15 22. Bandages 23. Mixer core 24. Core compartments 25. Core channels 30. Magnetic fish 20 41. Computer 42. Embedded system 4 43. Sequential inspection of bandages. 44. DC Power Supply 45. Driver circuit Within the detailed explanation;  Magneto-hydrodynamic mixer (10) MHD; 5  TMF to the moving (traveling) magnetic field mixer (12)  Rotary magnetic field stirrer (20) RMF; They will be addressed as follows. The invention aims to prevent deformation of the liquid surface during the mixing process and to improve mixing performance. It includes a new RMF (20) mixer system aimed at reducing the time. 10 For this reason, the mixing process is not only done with a magnetic fish rotating in the center (30) It should be done with four magnetic fish rotating in symmetrical positions (30). It is anticipated that there will be 900 of the four magnetic fish (30) that act as rotors. in such a way that two of the fish turn to the right and the other two turn to the left To create the rotating magnetic field, sequentially; 15 1. This prediction can be made using a magnetic simulation program. Design and manufacture of the mixer core (23) 2. Wrapping of the bandages (22) 3. Electronic driver circuit (45) that can apply sequential voltage to the windings (22) manufacturing 20 4. Sequential control of windings (43) and applied voltages with embedded system (42) and software that determines the frequency of voltage application to a coil development 5. The duration of application of the voltage applied to each winding with the embedded system (42) Development of the determining software 25 The transactions have been completed. RMF (20) was performed using a magnetic simulation program. mixer core (23) design number of core compartments, core channel (25) width and The height, inner diameter, outer diameter and height of the steel ring (21) were kept variable and Thus, by reducing the magnitude of the magnetic field at the core to zero, it becomes symmetrical. 5 magnetic fish (30) in positions around the circumference of the steel ring (21) The aim is to enable it to return. Sequential current was applied to the windings (22) through the simulation program, mixing core (23) Magnetic pole status determined for each case on the surface, magnetic field Its size and change have been determined. Thus, on the surface of the mixing core (23) both A rotating magnetic field is created and the mixer 10 which is the inner region of the steel ring (21). The magnetic field was zeroed at the core (23). Then the coils (22) Change of magnetic field around the ring according to the applied sequential current This has been determined. Thus, the locations of the magnetic fish along the circumference of the ring have been identified. (30) It can turn and the directions of turn have been determined. In the next stage, in accordance with the design Mixer core 15 made of manufacturing steel (AISI4140) with dimensions and suitable magnetic properties. (23) manufacturing has been completed. Steel ring (21) of the mixing core (23) Before placement, the coils (22) were placed in the core canals (25). In the next stage, an electronic driver that can apply sequential voltage to the windings (22) The design and manufacture of the circuit (45) was carried out. Then the embedded system (42) The sequential control of the windings with the voltages to be applied (43) and 20 applied to one winding (22) the development of LabVIEW software that determines the frequency of voltage application It has been passed. Finally, the embedded system (42) is applied to each coil (22). LabVIEW software has been developed to determine the duration of voltage application. These software programs... It can be controlled instantly from the computer (41). With the embedded system (42) Two-way data communication is available between the computers (41). 25 The invention product RMF (20) makes the mixing process both more homogeneous and shorter. A series of experiments have been conducted to demonstrate that this can be achieved in a short period of time. In this context, the same identical in size and material, but with a single magnetic fish in the center. (30) A second RMF (20) capable of rotating was used. In the new mixer, homogeneous It was found that the mixing occurred in a shorter time. Also, there was a single 30 in the center. The vortex formed by the rotation of the magnetic fish (30) is in the innovative new design RMF (20) 6 This is not due to the magnetic fish (30) rotating in two different directions. Thus A mixture similar to MHD (10) can be obtained without the need for TMF (12). Similar results can be obtained when experiments are repeated for different rotational speeds. and all results can be recorded on the computer (41). Industrial Applications of the Invention 5 This innovative RMF (20) system has the aforementioned advantages mainly. in chemistry, microbiology, biomedical and pharmaceutical laboratories, food, dye, textile industries. in the research and quality control laboratories of various sectors, and especially today It can be easily used in the initial preparatory stages of nanotechnology applications.

Claims

7 REQUESTS 1. The invention is a novel RMF (20) mixing system, the feature of which is;  Axial rotating magnetic field by sequential triggering of the windings (22) on it mixing core (23) which forms and acts as a stator in the system;  Electronic driver circuit capable of applying sequential voltages to the windings (22) 5 (45);  Sequential control of windings of applied voltages with embedded system (42) (43) and the frequency of voltage application to a coil and the voltage The control unit that determines the implementation period; It includes. 10 2. The RMF (20) mixer system conforming to Claim 1 has the following features: The mixing core which acts as the stator mentioned (23),  a cylindrical disc made of manufacturing steel,  Core channels (25) and core compartments (24) on the upper surface of the cylindrical disc,  The segmented disk, to the machined section in the center, manufacturing 15 a steel ring made of steel (21),  copper wire placed in the core channels (25) of the partitioned disk It contains the bandages (22) that are formed.

3. The appropriate RMF (20) mixing system according to claim 1 or 2, and its characteristic is; the mixing The magnetic permeability of the nucleus (23) is greater than 100μ. 20 4. The RMF (20) mixer system conforming to Claim 1 has the following characteristics: The mentioned electronic driver circuit (45),  stepper motor driver integrated circuit,  It contains a DC power supply with values ​​of 16 V, 3 A (44). 8 5. RMF (20) mixer system conforming to claim 1 or 4, and its feature is; electronic drive All power circuits (45) can perform the same function as the stepper motor driver integrated circuit. It is also compatible with electronic circuit elements.

6. The RMF (20) mixer system conforming to Claim 1 has the following feature: the mentioned control. The unit is LabVIEW software. 5 7. The RMF (20) mixer system conforming to Claim 1 has the following feature: the mentioned control. The unit has an algorithm that can be written in all other programming languages ​​as well.

Images