Preparation device and preparation method of tough high-performance ferrite magnetic steel

Abstract

The invention relates to the technical field of ferrite magnetic steel production and preparation, in particular to a preparation device and a preparation method of tough high-performance ferrite magnetic steel, the preparation device comprises a plate frame, and the top of the plate frame is provided with a fragmentation mechanism. The invention provides a preparation device of tough high-performance ferrite magnetic steel, which has a multi-stage crushing function, accurately controls coarse crushing to fine crushing, ensures that the granularity of raw materials is uniform and fine, provides a stable raw material basis for subsequent procedures, deeply removes iron, reduces the content of iron impurities to be extremely low, ensures high purity and excellent electromagnetic performance of the magnetic steel, and is suitable for industrial production. An efficient and powerful stirring and mixing structure is arranged, the mixing efficiency and uniformity of raw materials and additives are promoted to be greatly improved, preheating and vibrating functions are integrated, the materials are heated through intelligent temperature control, and therefore the viscosity is reduced, the fluidity is improved, pre-pressing forming is assisted, and due to the vibrating function, agglomerates are scattered when the materials are conveyed, and the component uniformity is optimized; the omnibearing assistance magnetic steel achieves the advantages of toughness and high performance standard.

Description

Technical Field

[0001] The invention relates to the technical field of ferrite magnetic steel production and preparation, and in particular to a preparation device and a preparation method of strong and high-performance ferrite magnetic steel. Background Art

[0002] As we all know, with the rapid development of science and technology, ferrite magnets are widely used in high-end fields such as electronics, electricity, and communications. Mobile device components in the electronics industry require magnetic steel with stable performance and miniaturization. Transformers and motors in power systems require high magnetic permeability and low loss. Communication base station RF devices rely on it to ensure signal transmission accuracy and strength.

[0003] However, in the process of preparing and processing strong and high-performance ferrite magnets, the problems existing in the existing technology are: in the raw material processing link, the raw material processing process under the traditional preparation process has uneven crushing particle size, poor iron removal effect and low mixing efficiency. At the same time, preheating and breaking up of agglomerates cannot be achieved during the feeding process, which affects the efficiency of subsequent pre-pressing and molding, greatly limiting the final magnetic steel product from achieving strong and high-performance standards. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the present invention provides a preparation device and a preparation method for strong and high-performance ferrite magnets. The device has a multi-stage crushing function, which can accurately control from coarse crushing to fine crushing to ensure that the raw material particle size is uniform and fine, providing a stable raw material basis for subsequent processes. At the same time, it can deeply remove iron and reduce the iron impurity content to an extremely low level to ensure the high purity and excellent electromagnetic properties of the magnet. It is equipped with an efficient and powerful stirring and mixing structure to greatly improve the mixing efficiency and uniformity of raw materials and additives. In addition, it incorporates preheating and vibration functions, and intelligent temperature control to heat the material, thereby reducing viscosity, improving fluidity and assisting pre-pressing molding. The vibration function breaks up agglomerates during material transportation and optimizes the uniformity of components, helping the magnet to achieve the advantages of strong and high-performance standards in all aspects.

[0006] (II) Technical solution

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: a preparation device for strong and high-performance ferrite magnetic steel, including a plate frame, a crushing mechanism is arranged on the top of the plate frame, and a conveying mechanism is arranged at the bottom of the crushing mechanism, the crushing mechanism includes a coarse crushing component, a fine crushing component, a coarse iron-absorbing component, a mixing component and a fine iron-absorbing component, the coarse crushing component is arranged at the top of the plate frame, the fine crushing component is arranged at the top of the coarse crushing component, the coarse iron-absorbing component is arranged at the bottom of the fine crushing component, the mixing component is arranged at the bottom of the coarse iron-absorbing component, and the fine iron-absorbing component is arranged at the bottom of the mixing component, the conveying mechanism includes a conveying component, a preheating vibration component and a monitoring component, the conveying component is arranged at the bottom of the fine iron-absorbing component, the preheating vibration component is arranged on the outside of the conveying component, and the monitoring component is arranged on the outside of the conveying component.

[0008] By adopting the above technical scheme, by setting up a crushing mechanism and a conveying mechanism, the raw materials first enter the coarse crushing component and are broken into smaller particles, laying the foundation for subsequent fine processing and preventing large particles from affecting the process. The crushed materials then fall into the fine crushing component for refinement, and then fall into the coarse iron-absorbing component, where larger iron impurities are adsorbed by permanent magnets for preliminary purification. The raw materials with preliminary iron removal enter the mixing component, where ingredients are added according to the formula and mixed into a mixed material through strong stirring. Then they flow into the fine iron-absorbing component, where iron is removed with high precision by electromagnetic adsorption, and trace weak magnetic impurities are removed to ensure high purity of the raw materials. The processed raw materials fall into the conveying component, and the preheating vibration component is started at this time to heat the material to 80-100℃ according to the preset temperature curve, reduce viscosity, improve fluidity, and help subsequent pre-pressing molding to perfectly fill the mold. At the same time, high-frequency vibration breaks up agglomerates to ensure uniform composition. The monitoring component monitors the preheating temperature and vibration intensity in real time, and feeds back to the preheating vibration component to automatically adjust the parameters so that the material can be connected to the subsequent links in the best state to ensure that the magnetic steel reaches strong and high-performance standards.

[0009] The present invention is further configured as follows: the coarse crushing component includes a lower hopper, a shell, a crushing barrel, a discharge port, a feeding hopper and a driving motor, the lower hopper is embedded in the top of the plate frame, the shell is connected to the top of the lower hopper, the crushing barrel is rotatably connected to the inside of the shell, the discharge port is opened on the outside of the crushing barrel, the feeding hopper is connected to the right side of the shell, the left side of the feeding hopper is connected to the right side of the crushing barrel, the driving motor is bolted to the left side of the top of the plate frame, and the output end of the driving motor is bolted to the left side of the crushing barrel.

[0010] By adopting the above technical scheme, a coarse crushing component is set up, and the raw materials enter the crushing barrel from the feeding hopper on the right side of the shell. Then, the driving motor is started to drive the crushing barrel connected to the shell to rotate, and the discharge port on the outside of the crushing barrel rotates synchronously. Large pieces of raw materials are subjected to strong impact and extrusion in the crushing barrel and are broken into smaller particles. They are discharged from the discharge port and fall into the lower hopper, and then transported to the subsequent processing process through the lower hopper, providing basic raw materials with suitable particle size for subsequent fine processing, avoiding large particles of raw materials from entering the subsequent process and affecting the overall processing rhythm and effect.

[0011] The present invention is further configured as follows: the fine crushing component includes a fine crushing cylinder, a frequency conversion motor, a fine crushing knife and a discharge net, the fine crushing cylinder is connected to the bottom of the lower hopper, the frequency conversion motor is bolted to the left side of the fine crushing cylinder, the output end of the frequency conversion motor passes through the left side of the fine crushing cylinder, the fine crushing knife is bolted to the output end of the frequency conversion motor, the fine crushing knife is located inside the fine crushing cylinder, the discharge net is embedded in the bottom of the fine crushing cylinder, and the top of the discharge net is located at the bottom of the fine crushing knife.

[0012] By adopting the above technical solution, through the setting of fine crushing components, the coarsely crushed particle raw materials enter the connected fine crushing cylinder, and the frequency conversion motor runs, driving the fine crushing knife at the output end to rotate at high speed, so as to finely cut and grind the raw materials. The discharge net embedded in the bottom plays the role of supporting the raw materials on the one hand, and allows the raw materials with a certain fineness to pass through on the other hand, while the particles that do not meet the standards continue to stay in the fine crushing cylinder to be processed by the fine crushing knife, ensuring that the output raw material has uniform particle size and meets the fineness requirements of high-performance magnetic steel preparation, and accurately controlling the quality of the raw materials entering the next link.

[0013] The present invention is further configured as follows: the coarse magnetic absorption assembly includes a frame, a magnet mesh frame, a blowing bucket, a variable frequency hair dryer and an output bucket, the frame is connected to the bottom of the fine crushing cylinder, the magnet mesh frame is arranged inside the frame, the blowing bucket is connected to the rear side of the frame, the blowing bucket is located at the rear side of the magnet mesh frame, the variable frequency hair dryer is arranged at the rear side of the blowing bucket, the output end of the variable frequency hair dryer is connected to the rear side of the blowing bucket, the output bucket is connected to the front side of the frame, and the output bucket is located outside the magnet mesh frame.

[0014] By adopting the above technical scheme, a coarse iron-absorbing component is set up, and the finely crushed raw materials fall into the connected frame. The magnet mesh frame in the frame plays a key role. With the help of the permanent magnet magnetic field, when the raw materials flow through, larger particles of iron impurities are strongly adsorbed on the magnet mesh frame to achieve preliminary iron removal. The variable frequency hair dryer on the rear side cooperates with the blow bucket, and the air flow blown out can regularly sweep the magnet mesh frame to prevent the accumulation of iron impurities from clogging the mesh holes and affecting the adsorption effect, thereby ensuring that the adsorption process is continuously efficient. The raw materials after preliminary purification flow smoothly from the output bucket on the front side of the frame to the next process.

[0015] The present invention is further configured as follows: the mixing assembly includes a mixing barrel, a mixing motor, a mixing plate and an ingredient inlet valve, the top of the mixing barrel is connected to the bottom of the output bucket, the mixing motor is bolted to the right side of the mixing barrel, the output end of the mixing motor passes through the right side of the mixing barrel, the front side of the mixing plate is bolted to the output end of the mixing motor, the mixing plate is located inside the mixing barrel, and the ingredient inlet valve is connected to the front side of the mixing barrel.

[0016] By adopting the above technical scheme, a mixing component is set up, and the raw materials enter the mixing barrel from the output bucket. The mixing motor is started, driving the mixing plate to rotate rapidly in the mixing barrel. According to the precise formula, the ingredient inlet valve is opened at the right time, and various added ingredients fall accurately into the mixing barrel. The mixing plate stirs vigorously to make the raw materials and the added ingredients fully contact and blend in a short time to form a mixture with uniform texture, providing a raw material basis with stable composition and good mixing for subsequent processes, ensuring the consistency of magnetic steel product performance.

[0017] The present invention is further configured as follows: the fine iron absorption assembly includes a discharge pipe, a first discharge barrel, a second discharge barrel, a third discharge barrel and an electromagnetic adsorption column, the discharge pipe is connected to the bottom of the rear side of the mixing barrel, the first discharge barrel is connected to the rear side of the discharge pipe, the second discharge barrel is connected to the rear side of the first discharge barrel, the third discharge barrel is connected to the rear side of the second discharge barrel, and the electromagnetic adsorption columns are respectively arranged inside the first discharge barrel, the second discharge barrel and the third discharge barrel.

[0018] By adopting the above technical solution and setting a fine iron absorption component, the mixed material is discharged from the discharge pipe at the bottom of the rear side of the mixing barrel, and enters the connected first discharge barrel, the second discharge barrel and the third discharge barrel respectively. The electromagnetic adsorption columns arranged inside the first discharge barrel, the second discharge barrel and the third discharge barrel generate a high-intensity magnetic field after being energized, which deeply captures the trace weak magnetic iron impurities remaining in the raw materials, thereby ensuring that even extremely fine iron impurities have nowhere to hide, thereby ensuring the high purity of the raw materials to the greatest extent, and ensuring a good quality of raw materials for the preparation of high-performance magnetic steel.

[0019] The present invention is further configured as follows: the conveying assembly includes a conveying cylinder, a conveying motor and a spiral conveying blade, the conveying cylinder is connected to the bottom of the first lower cylinder, the second lower cylinder and the third lower cylinder, the conveying motor is bolted to the front side of the conveying cylinder, the front side of the spiral conveying blade is bolted to the output end of the conveying motor, and the spiral conveying blade is located inside the conveying cylinder.

[0020] By adopting the above technical solution and setting up a conveying component, the high-purity raw materials that have been finely processed fall into the connected conveying barrel, and the conveying motor drives the spiral conveying blades to rotate. The spiral conveying blades push the raw materials to move forward steadily in the conveying barrel, thereby realizing a continuous and stable feeding process. According to the rhythm requirements of the subsequent pre-pressing molding process, the speed of the conveying motor is reasonably adjusted, and the feeding amount and rate are accurately controlled to ensure that the raw materials are supplied on time and in quantity, avoid material accumulation or insufficient supply, and ensure the continuity of the entire production process.

[0021] The present invention is further configured as follows: the preheating vibration assembly includes an electric heating ring, a vibration probe, an ultrasonic generator and a temperature regulator, the electric heating ring and the vibration probe are both arranged on the outside of the conveying tube, the ultrasonic generator is arranged on the front side of the top of the conveying tube, the ultrasonic generator is electrically connected to the vibration probe, the temperature regulator is arranged on the front side of the ultrasonic generator, and the temperature regulator is electrically connected to the electric heating ring.

[0022] By adopting the above technical solution and setting up a preheating vibration component, when the raw materials are transported in the conveying barrel, the outer electric heating ring works according to the preset temperature curve under the control of the thermostat to evenly transfer heat to the material in the conveying barrel, so that the temperature rises to 80-100°C, effectively reducing the viscosity of the material, improving fluidity, and facilitating subsequent pre-pressing molding. At the same time, the ultrasonic generator drives the vibration probe to generate high-frequency vibration, and the vibration wave is transmitted to the barrel to continuously break up the agglomerates that may be formed during the conveying process, thereby ensuring uniform material composition and providing raw materials in excellent condition for pre-pressing molding.

[0023] The present invention is further configured as follows: the monitoring component includes a temperature sensor, an acceleration sensor and a feedback device, the temperature sensor is arranged at the top of the conveying cylinder, the sensing end of the temperature sensor is located on the top side of the conveying cylinder, the acceleration sensor is arranged at the bottom of the conveying cylinder, the sensing end of the acceleration sensor is embedded in the interior of the conveying cylinder, the feedback device is arranged on the front side of the ultrasonic generator, the feedback device is electrically connected to the temperature sensor and the acceleration sensor, respectively, and the feedback device is electrically connected to the ultrasonic generator and the thermostat, respectively.

[0024] By adopting the above technical solution and setting up a monitoring component, during the conveying process, the temperature sensor on the top senses the material temperature in the conveying barrel in real time, and the acceleration sensor embedded in the bottom monitors the vibration intensity of the conveying barrel. The two transmit data to the feedback device. Once the temperature deviates from the preset range or the vibration is abnormal, the feedback device quickly sends instructions to the ultrasonic generator and thermostat to automatically adjust the preheating, vibration and other parameters to ensure that the material is always in the best conveying state, seamlessly connect with the subsequent production links, and fully guarantee that the final magnetic steel product meets the strong and high-performance standards.

[0025] A method for preparing strong and high-performance ferrite magnetic steel comprises the following steps:

[0026] S1. Crushing, iron removal and mixing: First, put the block ferrite raw material into the coarse crushing component, and use its strong mechanical force to initially crush the large raw materials into smaller particles, laying the foundation for subsequent fine processing. The crushed raw materials then enter the fine crushing component, and through fine beating, the raw material particle size is further refined to the required range to ensure the uniformity of the particles and meet the requirements of high-performance magnetic steel for the fineness of the raw materials. Then, the qualified raw materials after fine crushing naturally fall into the coarse iron absorption component, and rely on its inherent magnetic field to absorb and remove the larger particles of iron impurities, and preliminarily purify the raw materials. The raw materials after preliminary iron removal enter the stirring and mixing component, where various ingredients are added according to the precise formula, and are quickly and evenly mixed through strong stirring to form a mixed material. The mixed material finally flows through the fine iron absorption component, and high-precision iron removal is achieved with the help of electromagnetic adsorption, and the residual trace weak magnetic iron impurities are deeply removed to ensure the high purity of the raw materials.

[0027] S2. Preheating bulk material and conveying: The high-purity mixed material that has completed the above treatment falls into the conveying component for conveying. At the same time, the preheating vibration component starts to operate. According to the preset temperature curve, it heats the material in the conveying component to a temperature range suitable for pre-pressing, usually 80-100°C, to reduce the viscosity of the material and improve the fluidity. At the same time, it generates high-frequency vibration to vibrate its conveying component to continuously break up the agglomerates that may be formed during the conveying process of the material to ensure the uniformity of the material composition. In addition, the monitoring component monitors the preheating temperature and vibration intensity during the conveying process in real time, and then feeds back to the preheating vibration component, thereby automatically adjusting the preheating, vibration and other related parameters to ensure that the material is stably conveyed to the next production link in the best state, providing a solid guarantee for the final preparation of strong and high-performance ferrite magnets.

[0028] (III) Beneficial effects

[0029] Compared with the prior art, the present invention provides a device and method for preparing strong and high-performance ferrite magnetic steel, which has the following beneficial effects:

[0030] The preparation device of the strong and high-performance ferrite magnetic steel is provided with a crushing mechanism and a conveying mechanism. The raw materials enter the coarse crushing component, which crushes the large pieces of raw materials into smaller particles, providing a suitable size basis for subsequent fine processing, and avoiding excessively large particles from entering the subsequent process and affecting the overall processing effect. Then, the crushed raw materials fall into the fine crushing component for fine crushing. Subsequently, the finely crushed raw materials fall into the coarse iron-absorbing component, and with the help of the permanent magnet magnetic field, the larger particles of iron impurities are quickly adsorbed and removed to preliminarily purify the raw materials. The raw materials after the preliminary iron removal enter the stirring and mixing component, where various ingredients are added according to a precise formula, and the mixture is quickly and evenly mixed through strong stirring to form a mixed material. The mixed material finally flows through the fine iron-absorbing component, and high-precision iron removal is achieved with the help of electromagnetic adsorption, and the residual trace weak magnetic iron impurities are deeply removed to ensure the high purity of the raw materials. Degree, and then, the processed raw materials fall into the conveying component for transportation. At the same time, the preheating vibration component starts to operate. According to the preset temperature curve, it heats the material in the conveying component to a temperature range suitable for pre-pressing, usually 80-100°C, to reduce the viscosity of the material, improve fluidity, so that the material can perfectly fill the mold during subsequent pre-pressing. At the same time, it generates high-frequency vibration to vibrate its conveying component, and continuously breaks up the agglomerates that may be formed during the conveying process of the material to ensure uniform material composition. In addition, the monitoring component monitors the preheating temperature and vibration intensity during the conveying process in real time, and then feeds back to the preheating vibration component, thereby automatically adjusting the preheating, vibration and other related parameters to ensure that the material is seamlessly connected to the subsequent production links in the best state, and comprehensively guarantee that the final magnetic steel product reaches the strong and high-performance standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the plate frame in the present invention;

[0033] Figure 3 It is a schematic diagram of the coarse crushing component in the present invention;

[0034] Figure 4 It is a schematic diagram of the fine crushing components in the present invention;

[0035] Figure 5 It is a schematic diagram of a coarse magnetic magnet assembly in the present invention;

[0036] Figure 6 It is a schematic diagram of the mixing component in the present invention;

[0037] Figure 7 It is a schematic diagram of a thin magnetic magnet assembly in the present invention;

[0038] Figure 8 It is a schematic diagram of the conveying component in the present invention;

[0039] Fig. 9It is a schematic diagram of the preheating vibration component in the present invention;

[0040] Fig.10 It is a schematic diagram of the monitoring component in the present invention;

[0041] Fig.11 It is a schematic diagram of the preparation method of the present invention.

[0042] In the figure: 1, plate frame; 2, crushing mechanism; 21, coarse crushing component; 211, lower hopper; 212, shell; 213, crushing cylinder; 214, discharge port; 215, feeding hopper; 216, driving motor; 22, fine crushing component; 221, fine crushing cylinder; 222, frequency conversion motor; 223, fine crushing knife; 224, discharge net; 23, coarse magnetic absorption component; 231, frame; 232, magnet net frame; 233, blowing bucket; 234, frequency conversion hair dryer; 235, output bucket; 24, mixing component; 241, mixing cylinder; 242, mixing motor; 243, mixing Plate; 244, ingredient inlet valve; 25, fine magnetic suction assembly; 251, discharge pipe; 252, first discharge barrel; 253, second discharge barrel; 254, third discharge barrel; 255, electromagnetic adsorption column; 3, conveying mechanism; 31, conveying assembly; 311, conveying barrel; 312, conveying motor; 313, spiral conveying blade; 32, preheating vibration assembly; 321, electric heating ring; 322, vibration probe; 323, ultrasonic generator; 324, thermostat; 33, monitoring assembly; 331, temperature sensor; 332, acceleration sensor; 333, feedback device. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] Example 1

[0045] See also Figure 1-7A preparation device for strong and high-performance ferrite magnetic steel comprises a plate frame 1, a crushing mechanism 2 is arranged on the top of the plate frame 1, and the crushing mechanism 2 comprises a coarse crushing component 21, a fine crushing component 22, a coarse magnetic component 23, a mixing component 24 and a fine magnetic component 25, the coarse crushing component 21 is arranged on the top of the plate frame 1, the fine crushing component 22 is arranged on the top of the coarse crushing component 21, the coarse magnetic component 23 is arranged at the bottom of the fine crushing component 22, the mixing component 24 is arranged at the bottom of the coarse magnetic component 23, and the fine magnetic component 25 is arranged at the mixing component 24. At the bottom, by setting up a crushing mechanism 2, the raw material first enters the coarse crushing component 21 and is crushed into smaller particles, laying the foundation for subsequent fine processing and preventing large particles from affecting the process. The crushed material then falls into the fine crushing component 22 for refinement, and then falls into the coarse iron-absorbing component 23, where larger iron impurities are adsorbed by permanent magnets for preliminary purification. The raw material with preliminary iron removal enters the stirring component 24, where ingredients are added according to the formula, and the raw material is evenly mixed into a mixed material through strong stirring, and then flows into the fine iron-absorbing component 25, where high-precision iron removal is carried out by electromagnetic adsorption, and trace weak magnetic impurities are removed to ensure high purity of the raw material.

[0046] The coarse crushing assembly 21 includes a lower hopper 211, a shell 212, a crushing barrel 213, a discharge port 214, a feeding hopper 215 and a driving motor 216. The lower hopper 211 is embedded in the top of the plate frame 1, the shell 212 is connected to the top of the lower hopper 211, the crushing barrel 213 is rotatably connected to the inside of the shell 212, the discharge port 214 is opened on the outside of the crushing barrel 213, the feeding hopper 215 is connected to the right side of the shell 212, the left side of the feeding hopper 215 is connected to the right side of the crushing barrel 213, the driving motor 216 is bolted to the left side of the top of the plate frame 1, and the output end of the driving motor 216 is bolted to the left side of the crushing barrel 213. A coarse crushing component 21 is provided, and the raw materials enter the crushing barrel 213 from the feeding hopper 215 on the right side of the shell 212. Then, the driving motor 216 is started to drive the crushing barrel 213 rotatably connected to the shell 212 to rotate, and the discharge port 214 on the outside of the crushing barrel 213 rotates synchronously. Large pieces of raw materials are subjected to strong impact and extrusion in the crushing barrel 213, and are crushed into smaller particles, which are discharged from the discharge port 214 and fall into the lower hopper 211. Then, they are transported to subsequent processing procedures through the lower hopper 211, so as to provide basic raw materials with suitable particle size for subsequent fine processing, and prevent large particles of raw materials from entering the subsequent process and affecting the overall processing rhythm and effect.

[0047] The fine crushing assembly 22 includes a fine crushing cylinder 221, a variable frequency motor 222, a fine crushing knife 223 and a discharge net 224. The fine crushing cylinder 221 is connected to the bottom of the lower hopper 211, the variable frequency motor 222 is bolted to the left side of the fine crushing cylinder 221, the output end of the variable frequency motor 222 passes through the left side of the fine crushing cylinder 221, the fine crushing knife 223 is bolted to the output end of the variable frequency motor 222, the fine crushing knife 223 is located inside the fine crushing cylinder 221, the discharge net 224 is embedded in the bottom of the fine crushing cylinder 221, and the top of the discharge net 224 is located at the bottom of the fine crushing knife 223. A fine crushing component 22 is provided, and the coarsely crushed granular raw materials enter the connected fine crushing cylinder 221. The frequency conversion motor 222 runs, driving the fine crushing knife 223 at the output end to rotate at high speed, and finely cut and grind the raw materials. The discharge net 224 embedded in the bottom plays the role of supporting the raw materials on the one hand, and allows the raw materials with a certain fineness to pass through on the other hand, while the particles that do not meet the standards continue to stay in the fine crushing cylinder 221 to be processed by the fine crushing knife 223, ensuring that the output raw materials have uniform particle size and meet the fineness requirements of the preparation of high-performance magnetic steel, and accurately controlling the quality of the raw materials entering the next link.

[0048] The coarse magnetic absorption assembly 23 includes a frame 231, a magnet mesh frame 232, a blow bucket 233, a frequency conversion hair dryer 234 and an output bucket 235. The frame 231 is connected to the bottom of the fine crushing cylinder 221, the magnet mesh frame 232 is arranged inside the frame 231, the blow bucket 233 is connected to the rear side of the frame 231, the blow bucket 233 is located at the rear side of the magnet mesh frame 232, the frequency conversion hair dryer 234 is arranged at the rear side of the blow bucket 233, the output end of the frequency conversion hair dryer 234 is connected to the rear side of the blow bucket 233, the output bucket 235 is connected to the front side of the frame 231, and the output bucket 235 is located at the magnet mesh frame 232. The outer side of the frame 231 is provided with a coarse iron-absorbing component 23, and the finely crushed raw materials fall into the connected frame 231. The magnet mesh frame 232 in the frame 231 plays a key role. With the help of the permanent magnet magnetic field, when the raw materials flow through, larger particles of iron impurities are strongly adsorbed on the magnet mesh frame 232, thereby achieving preliminary iron removal. The variable frequency hair dryer 234 on the rear side cooperates with the blowing bucket 233, and the blown air flow can regularly sweep the magnet mesh frame 232 to prevent the accumulation of iron impurities and clogging the mesh holes to affect the adsorption effect, thereby ensuring that the adsorption process is continuously efficient. The raw materials after preliminary purification flow smoothly from the output bucket 235 on the front side of the frame 231 to the next process.

[0049] The mixing assembly 24 includes a mixing drum 241, a mixing motor 242, a mixing plate 243 and an ingredient inlet valve 244. The top of the mixing drum 241 is connected to the bottom of the output bucket 235. The mixing motor 242 is bolted to the right side of the mixing drum 241. The output end of the mixing motor 242 passes through the right side of the mixing drum 241. The front side of the mixing plate 243 is bolted to the output end of the mixing motor 242. The mixing plate 243 is located inside the mixing drum 241. The ingredient inlet valve 244 is connected to the front side of the mixing drum 241. In the mixing assembly 24, the raw materials enter the mixing barrel 241 from the output bucket 235, and the mixing motor 242 is started, driving the mixing plate 243 to rotate rapidly in the mixing barrel 241. According to the precise formula, the ingredient inlet valve 244 is opened in time, and various added ingredients fall accurately into the mixing barrel 241. The mixing plate 243 stirs vigorously to make the raw materials and the added ingredients fully contact and blend in a short time to form a mixture with uniform texture, providing a raw material basis with stable composition and good mixing for subsequent processes, ensuring the consistency of magnetic steel product performance.

[0050] The fine magnetic magnet assembly 25 includes a discharge pipe 251, a first discharge barrel 252, a second discharge barrel 253, a third discharge barrel 254 and an electromagnetic adsorption column 255. The discharge pipe 251 is connected to the bottom of the rear side of the mixing barrel 241, the first discharge barrel 252 is connected to the rear side of the discharge pipe 251, the second discharge barrel 253 is connected to the rear side of the first discharge barrel 252, and the third discharge barrel 254 is connected to the rear side of the second discharge barrel 253. The electromagnetic adsorption column 255 is respectively arranged inside the first discharge barrel 252, the second discharge barrel 253 and the third discharge barrel 254. A fine magnetic absorption component 25 is arranged, and the mixed material is discharged from the discharge pipe 251 at the bottom of the rear side of the mixing barrel 241, and respectively enters the connected first discharge barrel 252, the second discharge barrel 253 and the third discharge barrel 254. The electromagnetic absorption column 255 arranged inside the first discharge barrel 252, the second discharge barrel 253 and the third discharge barrel 254 generates a high-intensity magnetic field after being energized, which deeply captures the trace weak magnetic iron impurities remaining in the raw materials, thereby ensuring that even extremely fine iron impurities have nowhere to hide, thereby ensuring the high purity of the raw materials to the greatest extent, and ensuring a good quality of raw materials for the preparation of high-performance magnetic steel.

[0051] Working principle of this embodiment: First, the raw material enters the crushing barrel 213 from the feeding hopper 215 on the right side of the shell 212, and the driving motor 216 is immediately started, driving the crushing barrel 213 to rotate at a high speed in the shell 212. The large pieces of raw material are subjected to strong impact and extrusion in the crushing barrel 213, and are crushed into smaller particles. They are discharged through the rotating discharge port 214 on the outside of the crushing barrel 213 and fall into the lower hopper 211, and then transported downward to the connected fine crushing barrel 221. The frequency conversion motor 222 runs, driving the fine crushing knife 223 to rotate at a high speed, and finely cut the raw material. , grinding, the discharge net 224 embedded in the bottom supports the raw materials while allowing the particles that meet the fineness requirements to pass through, and the particles that do not meet the standards are retained in the fine crushing cylinder 221 for further processing, ensuring that the output raw material particle size is uniform and meets the fineness standards for high-performance magnetic steel preparation, and accurately controlling the quality of the raw materials entering the next link. Then, the finely crushed raw materials fall into the frame 231, and the magnet mesh frame 232 in the frame 231 relies on the permanent magnet magnetic field to strongly absorb larger particles of iron impurities when the raw materials flow through, thereby achieving preliminary iron removal. The variable frequency blower 234 on the rear side cooperates with the blow bucket 233 to achieve fixed The air flow is blown out to sweep the magnet mesh frame 232 to prevent iron impurities from accumulating and clogging the mesh holes, thereby ensuring that the adsorption process is continuously efficient. The raw materials after preliminary purification flow into the mixing barrel 241 through the output bucket 235 on the front side of the frame 231. The mixing motor 242 is started to drive the mixing plate 243 to rotate rapidly. According to the precise formula, the ingredient inlet valve 244 is opened in time, and various added ingredients fall accurately into the mixing barrel 241. The mixing plate 243 stirs the raw materials and the added ingredients vigorously to fully contact and blend in a short time, forming a mixed material with uniform texture, which lays a solid foundation for the subsequent process to stabilize the ingredients and mix well. A good raw material base ensures the consistency of magnetic steel product performance. Finally, the mixed material is discharged from the bottom discharge pipe 251 on the rear side of the mixing barrel 241 and enters the connected first discharge barrel 252, the second discharge barrel 253 and the third discharge barrel 254. The electromagnetic adsorption columns 255 inside the first discharge barrel 252, the second discharge barrel 253 and the third discharge barrel 254 are energized to generate a high-intensity magnetic field, which deeply captures the trace weak magnetic iron impurities remaining in the raw materials to ensure that even the extremely fine iron impurities have nowhere to hide, thereby ensuring the high purity of the raw materials to the greatest extent and ensuring a good quality of raw materials for the preparation of high-performance magnetic steel.

[0052] Example 2

[0053] refer to Figure 8-10A preparation device for strong and high-performance ferrite magnetic steel also includes a conveying mechanism 3, wherein the conveying mechanism 3 includes a conveying component 31, a preheating vibration component 32 and a monitoring component 33. The conveying component 31 is arranged at the bottom of the fine magnetic component 25, the preheating vibration component 32 is arranged on the outside of the conveying component 31, and the monitoring component 33 is arranged on the outside of the conveying component 31. By setting the conveying mechanism 3, the processed raw materials fall into the conveying component 31. At this time, the preheating vibration component 32 is started to heat the material to 80-100°C according to the preset temperature curve, reduce the viscosity, improve the fluidity, and help the subsequent pre-pressing molding to perfectly fill the mold. At the same time, high-frequency vibration breaks up the agglomerates to ensure uniform composition. The monitoring component 33 monitors the preheating temperature and vibration intensity in real time, and feeds back to the preheating vibration component 32, automatically adjusts the parameters, so that the material can be connected to the subsequent links in the best state, and ensures that the magnetic steel reaches the strong and high-performance standards.

[0054] Among them, the conveying component 31 includes a conveying cylinder 311, a conveying motor 312 and a spiral conveying blade 313. The conveying cylinder 311 is connected to the bottom of the first unloading cylinder 252, the second unloading cylinder 253 and the third unloading cylinder 254. The conveying motor 312 is bolted to the front side of the conveying cylinder 311, and the front side of the spiral conveying blade 313 is bolted to the output end of the conveying motor 312. The spiral conveying blade 313 is located inside the conveying cylinder 311. By setting the conveying component 31, the high-purity raw materials that have been finely processed fall into the connected conveying cylinder 311, the conveying motor 312 drives the spiral conveying blade 313 to rotate, and the spiral conveying blade 313 pushes the raw materials to move steadily forward in the conveying cylinder 311, so as to realize a continuous and stable feeding process. According to the rhythm requirements of the subsequent pre-pressing molding process, the speed of the conveying motor 312 is reasonably adjusted, and the feeding amount and rate are accurately controlled to ensure that the raw materials are supplied on time and in quantity, avoid material accumulation or insufficient supply, and ensure the continuity of the entire production process.

[0055] The preheating vibration assembly 32 includes an electric heating ring 321, a vibration probe 322, an ultrasonic generator 323 and a thermostat 324. The electric heating ring 321 and the vibration probe 322 are both arranged on the outside of the conveying cylinder 311. The ultrasonic generator 323 is arranged on the front side of the top of the conveying cylinder 311. The ultrasonic generator 323 is electrically connected to the vibration probe 322. The thermostat 324 is arranged on the front side of the ultrasonic generator 323. The thermostat 324 is electrically connected to the electric heating ring 321. By setting the preheating vibration assembly 32, when the raw material is conveyed During transportation in the barrel 311, the outer electric heating ring 321 works according to the preset temperature curve under the control of the thermostat 324, and evenly transfers heat to the material in the conveying barrel 311, so that the temperature rises to 80-100°C, effectively reducing the viscosity of the material, improving the fluidity, and facilitating the subsequent pre-pressing molding. At the same time, the ultrasonic generator 323 drives the vibration probe 322 to generate high-frequency vibration, and the vibration wave is transmitted to the barrel to continuously break up the agglomerates that may be formed during the transportation process, ensuring the uniformity of the material composition and providing raw materials in excellent condition for pre-pressing molding.

[0056] The monitoring component 33 includes a temperature sensor 331, an acceleration sensor 332 and a feedback device 333. The temperature sensor 331 is arranged at the top of the conveying cylinder 311, and the sensing end of the temperature sensor 331 is located at the top side of the conveying cylinder 311. The acceleration sensor 332 is arranged at the bottom of the conveying cylinder 311, and the sensing end of the acceleration sensor 332 is embedded in the conveying cylinder 311. The feedback device 333 is arranged at the front side of the ultrasonic generator 323. The feedback device 333 is electrically connected to the temperature sensor 331 and the acceleration sensor 332, respectively. The feedback device 333 is electrically connected to the ultrasonic generator 323 and the acceleration sensor 332, respectively. The thermostat 324 is electrically connected. By setting up a monitoring component 33, during the conveying process, the temperature sensor 331 on the top senses the material temperature in the conveying cylinder 311 in real time, and the acceleration sensor 332 embedded in the bottom monitors the vibration intensity of the conveying cylinder 311. The two transmit data to the feedback device 333. Once the temperature deviates from the preset range or the vibration is abnormal, the feedback device 333 quickly sends instructions to the ultrasonic generator 323 and the thermostat 324 to automatically adjust the preheating, vibration and other parameters to ensure that the material is always in the best conveying state, seamlessly connect with the subsequent production links, and fully guarantee that the final magnetic steel product reaches the strong and high-performance standards.

[0057] Working principle of this embodiment: First, the high-purity raw material after fine processing falls into the conveying barrel 311, and the conveying motor 312 is started, driving the spiral conveying blade 313 connected thereto to rotate. The spiral conveying blade 313 steadily pushes the raw material to move forward continuously and smoothly in the conveying barrel 311, starting a continuous and stable feeding process. According to the rhythm requirements of the subsequent pre-pressing molding process, the operator can accurately adjust the speed of the conveying motor 312, thereby strictly controlling the feeding amount and rate, ensuring that the raw materials are supplied to the subsequent links on time and in quantity, effectively avoiding material accumulation or insufficient supply, and maintaining the continuity of the entire production process. At the same time, the electric heating ring 321 on the outside of the conveying barrel 311 is under the intelligent control of the thermostat 324, and operates strictly according to the preset temperature curve, and transfers heat evenly and gently to the material in the conveying barrel 311, so that its temperature steadily rises to 80-100°C. Under this temperature blessing, the viscosity of the material is significantly reduced, and the fluidity is greatly improved, as if it is endowed with smart vitality, for the subsequent pre-pressing molding. The process is greatly facilitated. At the same time, the ultrasonic generator 323 drives the vibration probe 322 to generate high-frequency vibration. The vibration wave is transmitted to the conveying cylinder 311 like a smart musical note, and continuously breaks up the agglomerates that may be formed by various factors during the transportation of the material, ensuring that the material composition is uniform and consistent, and providing the raw material with excellent state for the pre-pressing and molding process. The temperature sensor 331 on the top of the conveying cylinder 311 senses the material temperature in the conveying cylinder 311 in real time, and the acceleration sensor 332 embedded in the bottom accurately monitors the vibration intensity of the conveying cylinder 311. The two will quickly transmit the collected key data to the feedback device 333. Once the temperature deviates from the preset comfort range or the vibration fluctuates abnormally, the feedback device 333 will quickly send precise instructions to the ultrasonic generator 323 and the thermostat 324 to automatically adjust various parameters such as preheating and vibration to ensure that the material is always in the best state during the transportation process, and seamlessly connects with subsequent production links without any obstacles, so as to ensure that the final magnetic steel product achieves strong and high-performance standards in an all-round and dead-end manner.

[0058] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make non-creative modifications to the present embodiment as needed. Although the embodiments of the present invention have been shown and described, it is understandable to those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for preparing strong and high-performance ferrite magnetic steel, comprising a plate frame (1), characterized in that: A crushing mechanism (2) is arranged on the top of the plate frame (1), and a conveying mechanism (3) is arranged on the bottom of the crushing mechanism (2). The crushing mechanism (2) comprises a coarse crushing component (21), a fine crushing component (22), a coarse magnet component (23), a mixing component (24) and a fine magnet component (25). The coarse crushing component (21) is arranged on the top of the plate frame (1), the fine crushing component (22) is arranged on the top of the coarse crushing component (21), and the coarse magnet component (23) is arranged on the bottom of the fine crushing component (22). The mixing component (24) is arranged at the bottom of the coarse magnetic component (23), the fine magnetic component (25) is arranged at the bottom of the mixing component (24), the conveying mechanism (3) comprises a conveying component (31), a preheating vibration component (32) and a monitoring component (33), the conveying component (31) is arranged at the bottom of the fine magnetic component (25), the preheating vibration component (32) is arranged on the outside of the conveying component (31), and the monitoring component (33) is arranged on the outside of the conveying component (31).

2. The device for preparing a strong and high-performance ferrite magnetic steel according to claim 1, characterized in that: The coarse crushing component (21) comprises a lower hopper (211), a shell (212), a crushing barrel (213), a discharge port (214), a feeding hopper (215) and a driving motor (216); the lower hopper (211) is embedded in the top of the plate frame (1); the shell (212) is connected to the top of the lower hopper (211); the crushing barrel (213) is rotatably connected to the inside of the shell (212); the discharge port (214) is opened on the outside of the crushing barrel (213); the feeding hopper (215) is connected to the right side of the shell (212); the left side of the feeding hopper (215) is connected to the right side of the crushing barrel (213); the driving motor (216) is bolted to the left side of the top of the plate frame (1); and the output end of the driving motor (216) is bolted to the left side of the crushing barrel (213).

3. The device for preparing a strong and high-performance ferrite magnetic steel according to claim 2, characterized in that: The fine crushing component (22) comprises a fine crushing cylinder (221), a variable frequency motor (222), a fine crushing knife (223) and a discharge net (224); the fine crushing cylinder (221) is connected to the bottom of the lower hopper (211); the variable frequency motor (222) is bolted to the left side of the fine crushing cylinder (221); the output end of the variable frequency motor (222) passes through the left side of the fine crushing cylinder (221); the fine crushing knife (223) is bolted to the output end of the variable frequency motor (222); the fine crushing knife (223) is located inside the fine crushing cylinder (221); the discharge net (224) is embedded in the bottom of the fine crushing cylinder (221); and the top of the discharge net (224) is located at the bottom of the fine crushing knife (223).

4. The device for preparing a strong and high-performance ferrite magnetic steel according to claim 3, characterized in that: The coarse magnetic absorption component (23) comprises a frame (231), a magnet mesh frame (232), a blowing hopper (233), a variable frequency blower (234) and an output hopper (235); the frame (231) is connected to the bottom of the fine crushing cylinder (221); the magnet mesh frame (232) is arranged inside the frame (231); the blowing hopper (233) is connected to the rear side of the frame (231); the blowing hopper (233) is located at the rear side of the magnet mesh frame (232); the variable frequency blower (234) is arranged at the rear side of the blowing hopper (233); the output end of the variable frequency blower (234) is connected to the rear side of the blowing hopper (233); the output hopper (235) is connected to the front side of the frame (231); and the output hopper (235) is located outside the magnet mesh frame (232).

5. The device for preparing a strong and high-performance ferrite magnetic steel according to claim 4, characterized in that: The mixing assembly (24) comprises a mixing drum (241), a mixing motor (242), a mixing plate (243) and a batching inlet valve (244); the top of the mixing drum (241) is communicated with the bottom of the output bucket (235); the mixing motor (242) is bolted to the right side of the mixing drum (241); the output end of the mixing motor (242) passes through the right side of the mixing drum (241); the front side of the mixing plate (243) is bolted to the output end of the mixing motor (242); the mixing plate (243) is located inside the mixing drum (241); and the batching inlet valve (244) is communicated with the front side of the mixing drum (241).

6. The device for preparing strong and high-performance ferrite magnetic steel according to claim 5, characterized in that: The fine magnetic suction component (25) includes a discharge pipe (251), a first discharge barrel (252), a second discharge barrel (253), a third discharge barrel (254) and an electromagnetic adsorption column (255); the discharge pipe (251) is connected to the bottom of the rear side of the mixing barrel (241); the first discharge barrel (252) is connected to the rear side of the discharge pipe (251); the second discharge barrel (253) is connected to the rear side of the first discharge barrel (252); the third discharge barrel (254) is connected to the rear side of the second discharge barrel (253); and the electromagnetic adsorption column (255) is respectively arranged inside the first discharge barrel (252), the second discharge barrel (253) and the third discharge barrel (254).

7. The device for preparing strong and high-performance ferrite magnetic steel according to claim 6, characterized in that: The conveying assembly (31) comprises a conveying cylinder (311), a conveying motor (312) and a spiral conveying blade (313); the conveying cylinder (311) is connected to the bottom of the first lower material cylinder (252), the second lower material cylinder (253) and the third lower material cylinder (254); the conveying motor (312) is bolted to the front side of the conveying cylinder (311); the front side of the spiral conveying blade (313) is bolted to the output end of the conveying motor (312); and the spiral conveying blade (313) is located inside the conveying cylinder (311).

8. The device for preparing strong and high-performance ferrite magnetic steel according to claim 7, characterized in that: The preheating vibration assembly (32) comprises an electric heating ring (321), a vibration probe (322), an ultrasonic generator (323) and a temperature regulator (324); the electric heating ring (321) and the vibration probe (322) are both arranged on the outside of the conveying tube (311); the ultrasonic generator (323) is arranged on the front side of the top of the conveying tube (311); the ultrasonic generator (323) is electrically connected to the vibration probe (322); the temperature regulator (324) is arranged on the front side of the ultrasonic generator (323); and the temperature regulator (324) is electrically connected to the electric heating ring (321).

9. The device for preparing strong and high-performance ferrite magnetic steel according to claim 8, characterized in that: The monitoring component (33) comprises a temperature sensor (331), an acceleration sensor (332) and a feedback device (333); the temperature sensor (331) is arranged at the top of the conveying cylinder (311); the sensing end of the temperature sensor (331) is located at the top side of the conveying cylinder (311); the acceleration sensor (332) is arranged at the bottom of the conveying cylinder (311); the sensing end of the acceleration sensor (332) is embedded in the conveying cylinder (311); the feedback device (333) is arranged at the front side of the ultrasonic generator (323); the feedback device (333) is electrically connected to the temperature sensor (331) and the acceleration sensor (332), respectively; and the feedback device (333) is electrically connected to the ultrasonic generator (323) and the temperature regulator (324), respectively.

10. A method for preparing a strong and high-performance ferrite magnetic steel according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Crushing, iron removal and mixing: First, the bulk ferrite raw material is put into the coarse crushing component (21), and its powerful mechanical force is used to initially crush the large raw material into smaller particles, laying the foundation for subsequent fine processing. The crushed raw material then enters the fine crushing component (22), and through fine beating, the raw material particle size is further refined to the required range to ensure the uniformity of the particles and meet the requirements of high-performance magnetic steel for the fineness of the raw material. Then, the qualified raw material after fine crushing naturally falls into the coarse iron absorption component (23), and its inherent magnetic field plays a role, adsorbs and removes the larger particles of iron impurities therein, and initially purifies the raw material. The raw material after preliminary iron removal enters the stirring and mixing component (24), where various ingredients are added according to the precise formula, and the mixture is quickly and evenly mixed through strong stirring to form a mixed material. The mixed material finally flows through the fine iron absorption component (25), and high-precision iron removal is achieved by electromagnetic adsorption, and the residual trace weak magnetic iron impurities are deeply removed to ensure the high purity of the raw material; S2. Preheating bulk material and conveying: The high-purity mixed material that has completed the above treatment falls into the conveying component (31) for conveying. At the same time, the preheating vibration component (32) starts to operate. According to the preset temperature curve, it heats the material in the conveying component (31) to a temperature range suitable for pre-pressing, usually 80-100°C, to reduce the viscosity of the material and improve the fluidity. At the same time, it generates high-frequency vibration to vibrate its conveying component (31) to continuously break up the agglomerates that may be formed during the conveying process of the material to ensure that the material composition is uniform. In addition, the monitoring component (33) monitors the preheating temperature and vibration intensity during the conveying process in real time, and then feeds back to the preheating vibration component (32), thereby automatically adjusting the preheating, vibration and other related parameters to ensure that the material is stably conveyed to the next production link in the best state, providing a solid guarantee for the final preparation of strong and high-performance ferrite magnets.

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