CN112349471A - High-strength permanent magnetic ferrite magnetic shoe and preparation method thereof - Google Patents

Abstract

The invention discloses a high-strength permanent magnetic ferrite magnetic shoe and a preparation method thereof, wherein the high-strength permanent magnetic ferrite magnetic shoe is prepared by mixing raw materials, uniformly mixing to obtain a mixed raw material, adding the mixed raw material into raw material treatment equipment for grinding and dehydration to prepare raw material slurry, then injecting the raw material slurry into a mold for pressing and molding, then sintering, cooling and grinding; the raw material processing equipment grinds the mixed raw materials under the rotation action of the upper grinding disc and the lower grinding disc, and the raw materials with small particle size generated by grinding flow out along with clear water to obtain mixed slurry; the rotary spiral conveying blade drives the mixed slurry to move, so that part of water in the moving process of the mixed slurry is extruded out, most of water in the mixed slurry is efficiently removed, and the target raw material slurry is obtained.

Description

High-strength permanent magnetic ferrite magnetic shoe and preparation method thereof

Technical Field

The invention relates to the field of magnetic shoes, in particular to a high-strength permanent magnetic ferrite magnetic shoe and a preparation method thereof.

Background

The permanent magnetic ferrite magnetic shoe is mainly used in motors in industries of automobiles, motorcycles, electric bicycles, household appliances, fitness equipment and the like. On the one hand, the magnetic shoe meets the requirement of the motor on permanent magnetism on the aspect of magnetic performance, and on the other hand, the magnetic shoe is required to have corresponding intrinsic coercive force so as to ensure that the magnet does not generate irreversible demagnetization under the action of a strong demagnetization field. Therefore, the magnetic shoe is required to have high intrinsic coercive force as well as high residual magnetic flux density.

In the production process of the existing permanent magnetic ferrite magnetic shoe, water is added into raw materials of the permanent magnetic ferrite magnetic shoe for ball milling, then slurry obtained by ball milling is stood for precipitation, then target slurry is obtained by dehydration, and then the permanent magnetic ferrite magnetic shoe is prepared.

However, the slurry obtained by ball milling the raw material of the existing permanent magnetic ferrite magnetic shoe has poor uniformity of particle size and large particle size, so that the strength of the prepared permanent magnetic ferrite magnetic shoe is not high enough, and meanwhile, the production efficiency of the permanent magnetic ferrite magnetic shoe is influenced by the fact that the standing, precipitating and then dehydrating process consumes a long time.

Disclosure of Invention

In order to overcome the technical problems, the invention aims to provide a high-strength permanent magnetic ferrite magnetic shoe and a preparation method thereof, wherein the high-strength permanent magnetic ferrite magnetic shoe comprises the following steps: (1) the raw materials are mixed uniformly to obtain mixed raw materials, the mixed raw materials are added into a grinding cylinder of raw material processing equipment and fall to the top of a lower grinding disc, a jacking cylinder is started, a movable rod of the jacking cylinder contracts to drive a water storage tank to descend, so that the upper grinding disc enters the grinding cylinder and approaches to the lower grinding disc, a sealing cover is connected onto the grinding cylinder through a bolt, clear water in the water storage tank is conveyed into the grinding cylinder through a conveying pipe, a first driving motor is started, the first driving motor runs through a first driving chain wheel and a first driven chain wheel to drive a first transmission shaft to rotate, so that the lower grinding disc is driven to rotate, a second driving motor is started, the second driving motor runs through a second driving chain wheel and a second driven chain wheel to drive a second transmission shaft to rotate, so that the upper grinding disc is driven to rotate in a direction opposite to the lower grinding disc, the upper grinding disc and the lower grinding disc which rotate grind the mixed raw materials, and the ground mixed raw materials are dispersed into clear water to obtain mixed slurry, so that the problem that the strength of the prepared permanent magnetic ferrite magnetic shoe is not high enough due to poor uniformity and large particle size of the slurry obtained by ball milling of the conventional permanent magnetic ferrite magnetic shoe raw materials is solved; (2) mix thick liquids through the honeycomb duct, the inlet pipe gets into to strain in the inner chamber of a section of thick bamboo, start the dehydration motor, the dehydration motor operation drives universal driving shaft and auger delivery leaf and rotates, pivoted auger delivery leaf will mix thick liquids and carry forward, because mix thick liquids and remove to the eminence from straining a section of thick bamboo low place, some moisture in the mixed thick liquids is extruded, pass and strain a section of thick bamboo lateral wall and discharge to the header, remaining mixed thick liquids are from straining and discharging between a section of thick bamboo and the limiting plate, drop to and collect in the header, obtain raw material thick liquids, the thick liquids that have solved the ball-milling and obtain are through the sediment of stewing then the dehydration process expends time for a specified time, influence the production efficiency's.

The purpose of the invention can be realized by the following technical scheme:

a high-strength permanent magnetic ferrite magnetic shoe comprises the following raw materials in parts by weight:

100-200 parts of ferric oxide, 3-5 parts of calcium carbonate, 2-4 parts of silicon dioxide, 6-8 parts of lanthanum oxide and 2-4 parts of boric acid;

the high-strength permanent magnetic ferrite magnetic shoe is prepared by the following steps:

the method comprises the following steps: weighing raw materials according to the weight parts, mixing the raw materials, and uniformly mixing to obtain a mixed raw material;

step two: adding the mixed raw materials into a grinding cylinder of raw material treatment equipment, dropping to the top of a lower grinding disc, starting a jacking cylinder, and enabling a movable rod of the jacking cylinder to contract to drive a water storage tank to descend, so that an upper grinding disc enters the grinding cylinder and approaches the lower grinding disc, and connecting a sealing cover to the grinding cylinder through a bolt;

step three: conveying clean water in a water storage tank to a grinding cylinder through a conveying water pipe, starting a first driving motor, driving a first transmission shaft to rotate through a first driving chain wheel and a first driven chain wheel in operation so as to drive a lower grinding disc to rotate, starting a second driving motor, driving a second transmission shaft to rotate through a second driving chain wheel and a second driven chain wheel in operation so as to drive an upper grinding disc to rotate in a direction opposite to that of the lower grinding disc, and grinding mixed raw materials by the rotating upper grinding disc and the lower grinding disc;

step four: dispersing the ground mixed raw materials into clear water to obtain mixed slurry, discharging the mixed slurry from a gap between the lower grinding disc and the inner wall of the grinding cylinder, and discharging the mixed slurry to a material receiving groove through a discharge hole for storage;

step five: the mixed slurry in the material receiving groove enters an inner cavity of the filter cylinder through the guide pipe and the feeding pipe, a dewatering motor is started, the dewatering motor operates to drive a linkage shaft and a spiral conveying blade to rotate, the rotating spiral conveying blade conveys the mixed slurry forwards, as the mixed slurry moves from the lower part to the higher part of the filter cylinder, part of water in the mixed slurry is extruded out, the mixed slurry penetrates through the side wall of the filter cylinder and is discharged into a water collecting tank, and the rest mixed slurry is discharged from the space between the filter cylinder and the limiting plate and falls into the water collecting tank to be collected, so that raw material slurry with the particle size of 1-2 mu m and the water content of 32-35% is obtained;

step six: injecting the raw material slurry into a mold, pressing under the pressure of 20-22MPa to form a green body, then placing the green body into a furnace body with the temperature of 1150-.

As a further scheme of the invention: the raw material processing equipment comprises a grinding mechanism and a dehydration mechanism, wherein the dehydration mechanism is arranged on one side of the grinding mechanism, and the grinding mechanism is connected to the top of the dehydration mechanism;

the grinding mechanism comprises supporting plates, supporting tables, material receiving tanks, water storage tanks, a first transmission box, a first driving motor, a guide pipe, grinding cylinders, a second driving motor, a mounting seat, a second transmission box and jacking cylinders, wherein the supporting tables are mounted at one ends of the tops of the two supporting plates, the material receiving tanks are mounted at the other ends of the tops of the two supporting plates, the grinding cylinders are mounted in the inner cavities of the material receiving tanks, the guide pipe is mounted at one side of the material receiving tanks, the bottoms of the inner cavities of the material receiving tanks are obliquely arranged, the height of one side, close to the guide pipe, of the bottoms of the inner cavities of the material receiving tanks is lower than that of one side, far away from the guide pipe, the water storage tanks are arranged above the supporting tables;

two install first transmission case between the backup pad, the one end top of first transmission case is provided with first driving motor, install on one side of brace table one side of first driving motor, the second transmission case is installed at the top of water storage box, the one end below of second transmission case is provided with second driving motor, install on one side of water storage box one side of second driving motor, second driving motor is located first driving motor directly over, the other end below of second transmission case is provided with the mount pad, the mount pad is installed on one side that second driving motor was kept away from to the water storage box.

As a further scheme of the invention: the two ends of the inner cavity of the second transmission box are respectively provided with a second driving chain wheel and a second driven chain wheel, the second driving chain wheel and the second driven chain wheel are connected through a chain, the second driving chain wheel is sleeved on an output shaft of a second driving motor, the second driven chain wheel is sleeved on the top end of a second transmission shaft, the second transmission shaft is installed on the installation seat in a penetrating mode and is connected with the installation seat in a rotating mode, the bottom end of the second transmission shaft is sleeved with an upper grinding disc, a sealing cover is movably sleeved between the installation seat and the upper grinding disc of the second transmission shaft, a conveying water pipe is installed on the sealing cover, and one end, far away from the sealing cover, of the conveying water pipe is communicated to the bottom of one side of the water storage box.

As a further scheme of the invention: the inner chamber both ends of first transmission case are provided with first drive sprocket, first driven sprocket respectively, connect through the chain between first drive sprocket, the first driven sprocket, first drive sprocket cup joints on first driving motor's the output shaft, first driven sprocket cup joints in the bottom of first transmission shaft, first transmission shaft runs through to be installed on the supporting seat and rotate between the supporting seat and be connected, the supporting seat is installed on the one end of first driving motor is kept away from at first transmission case top, the top of first transmission shaft runs through to connect silo and grinding vessel and has cup jointed lower abrasive disc, abrasive disc and last abrasive disc are the cooperation component down, radian such as the bottom outer fringe of grinding vessel has seted up a plurality of discharge opening.

As a further scheme of the invention: dehydration mechanism includes mounting bracket, dehydration tank, feed inlet, dehydration motor, header tank, collection workbin, connecting plate, limiting plate, locating plate, universal driving shaft, strains a section of thick bamboo, inlet pipe, spiral delivery leaf, the dehydration tank is installed at the top of mounting bracket, the below of dehydration tank is provided with header tank and collection workbin, the header tank all is located the inner chamber of mounting bracket with collection workbin, the feed inlet has been seted up to the top one end of dehydration tank, the bottom intercommunication of feed inlet and honeycomb duct.

As a further scheme of the invention: install the locating plate in the inner chamber of dehydration box, install between the one end inner wall of locating plate and dehydration box and strain a section of thick bamboo, strain on the section of thick bamboo equidistance and cup jointed a plurality of connecting plate, a plurality of the both sides of connecting plate are installed respectively on the both sides inner wall of dehydration box, the limiting plate is installed through the bolt in one side of locating plate, there is the gap between limiting plate and the section of thick bamboo one end, strain the other end top of a section of thick bamboo and install the inlet pipe, the top intercommunication of inlet pipe to the feed inlet, it is less than the height of keeping away from inlet pipe one.

As a further scheme of the invention: the utility model discloses a dehydration machine, including dehydration case, universal driving shaft.

As a further scheme of the invention: a preparation method of a high-strength permanent magnetic ferrite magnetic shoe comprises the following steps:

the method comprises the following steps: weighing raw materials according to the weight parts, mixing the raw materials, and uniformly mixing to obtain a mixed raw material;

step two: adding the mixed raw materials into a grinding cylinder of raw material treatment equipment, dropping to the top of a lower grinding disc, starting a jacking cylinder, and enabling a movable rod of the jacking cylinder to contract to drive a water storage tank to descend, so that an upper grinding disc enters the grinding cylinder and approaches the lower grinding disc, and connecting a sealing cover to the grinding cylinder through a bolt;

step three: conveying clean water in a water storage tank to a grinding cylinder through a conveying water pipe, starting a first driving motor, driving a first transmission shaft to rotate through a first driving chain wheel and a first driven chain wheel in operation so as to drive a lower grinding disc to rotate, starting a second driving motor, driving a second transmission shaft to rotate through a second driving chain wheel and a second driven chain wheel in operation so as to drive an upper grinding disc to rotate in a direction opposite to that of the lower grinding disc, and grinding mixed raw materials by the rotating upper grinding disc and the lower grinding disc;

step four: dispersing the ground mixed raw materials into clear water to obtain mixed slurry, discharging the mixed slurry from a gap between the lower grinding disc and the inner wall of the grinding cylinder, and discharging the mixed slurry to a material receiving groove through a discharge hole for storage;

step five: the mixed slurry in the material receiving groove enters an inner cavity of the filter cylinder through the guide pipe and the feeding pipe, a dewatering motor is started, the dewatering motor operates to drive a linkage shaft and a spiral conveying blade to rotate, the rotating spiral conveying blade conveys the mixed slurry forwards, as the mixed slurry moves from the lower part to the higher part of the filter cylinder, part of water in the mixed slurry is extruded out, the mixed slurry penetrates through the side wall of the filter cylinder and is discharged into a water collecting tank, and the rest mixed slurry is discharged from the space between the filter cylinder and the limiting plate and falls into the water collecting tank to be collected, so that raw material slurry with the particle size of 1-2 mu m and the water content of 32-35% is obtained;

step six: injecting the raw material slurry into a mold, pressing under the pressure of 20-22MPa to form a green body, then placing the green body into a furnace body with the temperature of 1150-.

The invention has the beneficial effects that:

(1) the invention relates to a high-strength permanent magnetic ferrite magnetic shoe and a preparation method thereof, which are characterized in that raw materials are mixed and evenly mixed to obtain mixed raw materials, the mixed raw materials are added into a grinding cylinder of raw material treatment equipment and fall to the top of a lower grinding disc, a jacking cylinder is started, a movable rod of the jacking cylinder contracts to drive a water storage tank to descend, so that an upper grinding disc enters the grinding cylinder and approaches to the lower grinding disc, a sealing cover is connected onto the grinding cylinder through a bolt, clear water in the water storage tank is conveyed into the grinding cylinder through a conveying water pipe, a first driving motor is started, the first driving motor rotates through a first driving chain wheel and a first driven chain wheel to drive a first transmission shaft to rotate, so that the lower grinding disc is driven to rotate, a second driving motor is started, the second driving motor rotates through a second driving chain wheel and a second driven chain wheel to drive a second transmission shaft to rotate, the upper grinding disc is driven to rotate in the direction opposite to the lower grinding disc, the mixed raw materials are ground by the rotating upper grinding disc and the rotating lower grinding disc, the ground mixed raw materials are dispersed into clear water to obtain mixed slurry, and the mixed slurry flows out of a gap between the lower grinding disc and the inner wall of the grinding cylinder and is discharged to a material receiving groove through a discharge hole to be stored; the raw material processing equipment grinds the mixed raw materials under the rotation action of the movable upper grinding disc and the movable lower grinding disc, and the small-particle-size raw materials generated by grinding flow out along with clear water to obtain mixed slurry;

(2) the invention relates to a high-strength permanent magnetic ferrite magnetic shoe and a preparation method thereof.A mixed slurry enters an inner cavity of a filter cylinder through a flow guide pipe and a feed pipe, a dehydration motor is started, the dehydration motor operates to drive a linkage shaft and a spiral conveying blade to rotate, the rotating spiral conveying blade conveys the mixed slurry forwards, as the mixed slurry moves from the lower part to the higher part of the filter cylinder, part of moisture in the mixed slurry is extruded out, the mixed slurry penetrates through the side wall of the filter cylinder and is discharged into a water collecting tank, and the rest mixed slurry is discharged from the space between the filter cylinder and a limiting plate and falls into the water collecting tank to be collected, so as to obtain raw slurry; this raw materials processing equipment drives mixed thick liquids through pivoted spiral delivery leaf and removes for mixed thick liquids are extruded at the in-process part moisture that removes, make the most water in the efficient desorption mixed thick liquids, obtain the raw materials thick liquids of target.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the structure of a raw material processing apparatus according to the present invention;

FIG. 2 is a schematic view of the grinding mechanism of the present invention;

FIG. 3 is a schematic transmission diagram of a second drive motor according to the present invention;

FIG. 4 is a schematic view of the transmission of the first drive motor of the present invention;

FIG. 5 is a schematic view showing the structure of a dewatering mechanism according to the present invention;

FIG. 6 is a schematic view showing the inner structure of the dewatering box of the present invention;

FIG. 7 is a view showing the connection of the linkage shaft and the spiral conveying blade in the present invention.

In the figure: 100. a grinding mechanism; 200. a dewatering mechanism; 101. a support plate; 102. a support table; 103. a material receiving groove; 104. a water storage tank; 105. a first transmission case; 106. a first drive motor; 107. a flow guide pipe; 108. a grinding cylinder; 109. a second drive motor; 110. a mounting seat; 111. a second transmission case; 112. jacking a cylinder; 113. a second drive sprocket; 114. a second driven sprocket; 115. a second drive shaft; 116. a sealing cover; 117. an upper grinding disc; 118. a water delivery pipe; 119. a first drive sprocket; 120. a first driven sprocket; 121. a first drive shaft; 122. a supporting seat; 123. a lower grinding disc; 124. a discharge hole; 201. a mounting frame; 202. a dewatering box; 203. a feed inlet; 204. a dewatering motor; 205. a water collection tank; 206. a material collecting box; 207. a connecting plate; 208. a limiting plate; 209. positioning a plate; 210. a linkage shaft; 211. a filter cartridge; 212. a feed pipe; 213. the leaves are transported spirally.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

the embodiment is a high-strength permanent magnetic ferrite magnetic shoe, which comprises the following raw materials in parts by weight:

200 parts of iron oxide, 5 parts of calcium carbonate, 4 parts of silicon dioxide, 8 parts of lanthanum oxide and 4 parts of boric acid;

example 2:

referring to fig. 1 to 7, the present embodiment is a method for preparing a high-strength permanent magnetic ferrite magnetic shoe, including the following steps:

the method comprises the following steps: weighing raw materials according to the weight parts, mixing the raw materials, and uniformly mixing to obtain a mixed raw material;

step two: adding the mixed raw materials into a grinding cylinder 108 of the raw material processing equipment, falling to the top of a lower grinding disc 123, starting a jacking cylinder 112, enabling a movable rod of the jacking cylinder 112 to contract to drive a water storage tank 104 to descend, enabling an upper grinding disc 117 to enter the grinding cylinder 108 and approach the lower grinding disc 123, and connecting a sealing cover 116 to the grinding cylinder 108 through a bolt;

step three: conveying clean water in the water storage tank 104 to the grinding cylinder 108 through the conveying pipe 118, starting the first driving motor 106, driving the first transmission shaft 121 to rotate by the first driving chain wheel 119 and the first driven chain wheel 120 when the first driving motor 106 operates, so as to drive the lower grinding disc 123 to rotate, starting the second driving motor 109, driving the second transmission shaft 115 to rotate by the second driving chain wheel 113 and the second driven chain wheel 114 when the second driving motor 109 operates, so as to drive the upper grinding disc 117 to rotate in a direction opposite to that of the lower grinding disc 123, and grinding the mixed raw materials by the rotating upper grinding disc 117 and the lower grinding disc 123;

step four: dispersing the ground mixed raw materials into clear water to obtain mixed slurry, discharging the mixed slurry from a gap between the lower grinding disc 123 and the inner wall of the grinding cylinder 108, and discharging the mixed slurry to the material receiving groove 103 through the discharge hole 124 for storage;

step five: the mixed slurry in the material receiving groove 103 enters an inner cavity of the filter cylinder 211 through the guide pipe 107 and the feeding pipe 212, the dewatering motor 204 is started, the dewatering motor 204 operates to drive the linkage shaft 210 and the spiral conveying blade 213 to rotate, the rotating spiral conveying blade 213 conveys the mixed slurry forwards, as the mixed slurry moves from the lower part to the higher part of the filter cylinder 211, part of water in the mixed slurry is extruded out, passes through the side wall of the filter cylinder 211 and is discharged into the water collecting tank 205, and the rest mixed slurry is discharged from the space between the filter cylinder 211 and the limiting plate 208, falls into the material collecting tank 206 and is collected, so that raw material slurry with the particle size of 1 mu m and the water content of 33 percent is obtained;

step six: and injecting the raw material slurry into a mold, pressing under the pressure of 22MPa to form a green body, then placing the green body into a furnace body with the temperature of 1200 ℃ for high-temperature sintering for 2h, cooling, and grinding to obtain the high-strength permanent magnetic ferrite magnetic shoe.

Example 3:

referring to fig. 1-7, the raw material processing apparatus of the present embodiment includes a grinding mechanism 100 and a dewatering mechanism 200, wherein the dewatering mechanism 200 is disposed on one side of the grinding mechanism 100, and the grinding mechanism 100 is connected to the top of the dewatering mechanism 200;

the grinding mechanism 100 comprises support plates 101, support tables 102, material receiving grooves 103, water storage tanks 104, first transmission tanks 105, first driving motors 106, flow guide pipes 107, grinding drums 108, second driving motors 109, mounting seats 110, second transmission tanks 111 and jacking cylinders 112, wherein the support tables 102 are mounted at one ends of the tops of the two support plates 101, the material receiving grooves 103 are mounted at the other ends of the tops of the two support plates 101, the grinding drums 108 are mounted in the inner cavities of the material receiving grooves 103, the flow guide pipes 107 are mounted on one sides of the material receiving grooves 103, the bottoms of the inner cavities of the material receiving grooves 103 are obliquely arranged, the height of the bottoms of the inner cavities of the material receiving grooves 103, close to the flow guide pipes 107, is lower than the height of the sides far away from the flow guide pipes 107, the water storage tanks 104 are arranged above the support tables 102, and the jacking cylinders 112 are mounted;

a first transmission box 105 is arranged between the two support plates 101, a first driving motor 106 is arranged above one end of the first transmission box 105, one side of the first driving motor 106 is arranged on one side of the support platform 102, a second transmission box 111 is arranged at the top of the water storage box 104, a second driving motor 109 is arranged below one end of the second transmission box 111, one side of the second driving motor 109 is arranged on one side of the water storage box 104, the second driving motor 109 is positioned right above the first driving motor 106, a mounting seat 110 is arranged below the other end of the second transmission box 111, and the mounting seat 110 is arranged on one side of the water storage box 104 far away from the second driving motor 109;

a second driving sprocket 113 and a second driven sprocket 114 are respectively arranged at two ends of an inner cavity of the second transmission box 111, the second driving sprocket 113 and the second driven sprocket 114 are connected through a chain, the second driving sprocket 113 is sleeved on an output shaft of the second driving motor 109, the second driven sprocket 114 is sleeved on the top end of a second transmission shaft 115, the second transmission shaft 115 is installed on the installation base 110 in a penetrating manner and is rotatably connected with the installation base 110, an upper grinding disc 117 is sleeved at the bottom end of the second transmission shaft 115, a sealing cover 116 is movably sleeved between the installation base 110 and the upper grinding disc 117 of the second transmission shaft 115, a water conveying pipe 118 is installed on the sealing cover 116, and one end, far away from the sealing cover 116, of the water conveying pipe 118 is communicated with the bottom of one side of the water storage box 104;

a first driving sprocket 119 and a first driven sprocket 120 are respectively arranged at two ends of an inner cavity of the first transmission box 105, the first driving sprocket 119 and the first driven sprocket 120 are connected through a chain, the first driving sprocket 119 is sleeved on an output shaft of a first driving motor 106, the first driven sprocket 120 is sleeved at the bottom end of a first transmission shaft 121, the first transmission shaft 121 is installed on a supporting seat 122 in a penetrating manner and is rotatably connected with the supporting seat 122, the supporting seat 122 is installed on one end, far away from the first driving motor 106, of the top of the first transmission box 105, the top end of the first transmission shaft 121 is installed on a material receiving groove 103 and a grinding cylinder 108 in a penetrating manner and is sleeved with a lower grinding disc 123, the lower grinding disc 123 and an upper grinding disc 117 are matched components, and a plurality of discharge holes 124 are formed in the outer edge of the bottom of the grinding cylinder 108 at equal radian;

the dewatering mechanism 200 comprises an installation frame 201, a dewatering box 202, a feed inlet 203, a dewatering motor 204, a water collecting box 205, a material collecting box 206, a connecting plate 207, a limiting plate 208, a positioning plate 209, a linkage shaft 210, a filter cartridge 211, a feed pipe 212 and spiral conveying blades 213, the dewatering box 202 is installed at the top of the installation frame 201, the water collecting box 205 and the material collecting box 206 are arranged below the dewatering box 202, the water collecting box 205 and the material collecting box 206 are both positioned in an inner cavity of the installation frame 201, one end of the top of the dewatering box 202 is provided with the feed inlet 203, and the feed inlet 203 is communicated with the bottom end of the guide pipe 107;

a positioning plate 209 is installed in the inner cavity of the dewatering box 202, a filter cylinder 211 is installed between the positioning plate 209 and the inner wall of one end of the dewatering box 202, a plurality of connecting plates 207 are sleeved on the filter cylinder 211 at equal intervals, two sides of the plurality of connecting plates 207 are installed on the inner walls of two sides of the dewatering box 202 respectively, a limiting plate 208 is installed on one side of the positioning plate 209 through bolts, a gap exists between the limiting plate 208 and one end of the filter cylinder 211, a feed pipe 212 is installed at the top of the other end of the filter cylinder 211, the top end of the feed pipe 212 is communicated to the feed port 203, and the height of the bottom of one end, close to the feed pipe;

the dewatering device is characterized in that a dewatering motor 204 is installed at one end of the dewatering box 202, a linkage shaft 210 is installed on an output shaft of the dewatering motor 204, the linkage shaft 210 penetrates through the dewatering box 202 and is rotatably connected with the dewatering box 202, a spiral conveying blade 213 is installed at one end, close to the dewatering motor 204, of the linkage shaft 210, and the spiral conveying blade 213 is located in an inner cavity of the filter cylinder 211.

Referring to fig. 1-7, the operation of the material processing apparatus of the present embodiment is as follows:

the method comprises the following steps: adding the mixed raw materials into a grinding cylinder 108 of the raw material processing equipment, falling to the top of a lower grinding disc 123, starting a jacking cylinder 112, enabling a movable rod of the jacking cylinder 112 to contract to drive a water storage tank 104 to descend, enabling an upper grinding disc 117 to enter the grinding cylinder 108 and approach the lower grinding disc 123, and connecting a sealing cover 116 to the grinding cylinder 108 through a bolt;

step two: conveying clean water in the water storage tank 104 to the grinding cylinder 108 through the conveying pipe 118, starting the first driving motor 106, driving the first transmission shaft 121 to rotate by the first driving chain wheel 119 and the first driven chain wheel 120 when the first driving motor 106 operates, so as to drive the lower grinding disc 123 to rotate, starting the second driving motor 109, driving the second transmission shaft 115 to rotate by the second driving chain wheel 113 and the second driven chain wheel 114 when the second driving motor 109 operates, so as to drive the upper grinding disc 117 to rotate in a direction opposite to that of the lower grinding disc 123, and grinding the mixed raw materials by the rotating upper grinding disc 117 and the lower grinding disc 123;

step three: dispersing the ground mixed raw materials into clear water to obtain mixed slurry, discharging the mixed slurry from a gap between the lower grinding disc 123 and the inner wall of the grinding cylinder 108, and discharging the mixed slurry to the material receiving groove 103 through the discharge hole 124 for storage;

step four: the mixed slurry in the receiving tank 103 enters the inner cavity of the filter cylinder 211 through the guide pipe 107 and the feeding pipe 212, the dewatering motor 204 is started, the dewatering motor 204 operates to drive the linkage shaft 210 and the spiral conveying blade 213 to rotate, the rotating spiral conveying blade 213 conveys the mixed slurry forwards, as the mixed slurry moves from the lower part to the higher part of the filter cylinder 211, part of water in the mixed slurry is extruded out, passes through the side wall of the filter cylinder 211 and is discharged into the water collecting tank 205, and the rest mixed slurry is discharged from the space between the filter cylinder 211 and the limiting plate 208, falls into the collecting tank 206 and is collected, so that the raw slurry with the particle size of 1-2 mu m and the water content of 32-35% is obtained.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.

Claims (8)

1. The high-strength permanent magnetic ferrite magnetic shoe is characterized by comprising the following raw materials in parts by weight:

100-200 parts of ferric oxide, 3-5 parts of calcium carbonate, 2-4 parts of silicon dioxide, 6-8 parts of lanthanum oxide and 2-4 parts of boric acid;

the high-strength permanent magnetic ferrite magnetic shoe is prepared by the following steps:

the method comprises the following steps: weighing raw materials according to the weight parts, mixing the raw materials, and uniformly mixing to obtain a mixed raw material;

step two: adding the mixed raw materials into a grinding cylinder (108) of the raw material processing equipment, falling to the top of a lower grinding disc (123), starting a jacking cylinder (112), enabling a movable rod of the jacking cylinder (112) to contract to drive a water storage tank (104) to descend, enabling an upper grinding disc (117) to enter the grinding cylinder (108) and approach the lower grinding disc (123), and connecting a sealing cover (116) to the grinding cylinder (108) through a bolt;

step three: conveying clean water in a water storage tank (104) to a grinding cylinder (108) through a conveying water pipe (118), starting a first driving motor (106), driving a first transmission shaft (121) to rotate by the operation of the first driving motor (106) through a first driving chain wheel (119) and a first driven chain wheel (120), so as to drive a lower grinding disc (123) to rotate, starting a second driving motor (109), driving a second transmission shaft (115) to rotate by the operation of the second driving motor (109) through a second driving chain wheel (113) and a second driven chain wheel (114), so as to drive an upper grinding disc (117) to rotate in a direction opposite to that of the lower grinding disc (123), and grinding mixed raw materials are ground by the rotating upper grinding disc (117) and the lower grinding disc (123);

step four: dispersing the ground mixed raw materials into clear water to obtain mixed slurry, discharging the mixed slurry from a gap between a lower grinding disc (123) and the inner wall of a grinding cylinder (108), and discharging the mixed slurry to a material receiving groove (103) through a discharge hole (124) for storage;

step five: the mixed slurry in the material receiving groove (103) enters an inner cavity of the filter cylinder (211) through the guide pipe (107) and the feeding pipe (212), the dewatering motor (204) is started, the dewatering motor (204) operates to drive the linkage shaft (210) and the spiral conveying blade (213) to rotate, the rotating spiral conveying blade (213) conveys the mixed slurry forwards, as the mixed slurry moves from the lower part to the higher part of the filter cylinder (211), part of water in the mixed slurry is extruded out and is discharged into the water collecting tank (205) through the side wall of the filter cylinder (211), the rest mixed slurry is discharged from the space between the filter cylinder (211) and the limiting plate (208) and falls into the material collecting tank (206) for collection, and raw material slurry with the particle size of 1-2 mu m and the water content of 32-35% is obtained;

step six: injecting the raw material slurry into a mold, pressing under the pressure of 20-22MPa to form a green body, then placing the green body into a furnace body with the temperature of 1150-.

2. The high-strength permanent magnetic ferrite magnetic shoe according to claim 1, characterized in that the raw material processing equipment comprises a grinding mechanism (100), a dehydration mechanism (200), one side of the grinding mechanism (100) is provided with the dehydration mechanism (200), the grinding mechanism (100) is connected to the top of the dehydration mechanism (200);

the grinding mechanism (100) comprises support plates (101), support tables (102), material receiving tanks (103), water storage tanks (104), first transmission boxes (105), first driving motors (106), guide pipes (107), grinding cylinders (108), second driving motors (109), mounting seats (110), second transmission boxes (111) and jacking cylinders (112), wherein the support tables (102) are installed at one ends of the tops of the two support plates (101), the material receiving tanks (103) are installed at the other ends of the tops of the two support plates (101), the grinding cylinders (108) are installed in inner cavities of the material receiving tanks (103), the guide pipes (107) are installed on one sides of the material receiving tanks (103), the bottoms of the inner cavities of the material receiving tanks (103) are obliquely arranged, the height of one side, close to the guide pipes (107), of the bottoms of the inner cavities of the material receiving tanks (103) is lower than the height of one side, far away from the guide pipes, a water storage tank (104) is arranged above the support platform (102), and a plurality of jacking cylinders (112) are arranged between the water storage tank (104) and the support platform (102);

two install first transmission case (105) between backup pad (101), the one end top of first transmission case (105) is provided with first driving motor (106), install on one side of brace table (102) one side of first driving motor (106), second transmission case (111) are installed at the top of water storage box (104), the one end below of second transmission case (111) is provided with second driving motor (109), install on one side of water storage box (104) one side of second driving motor (109), second driving motor (109) are located directly over first driving motor (106), the other end below of second transmission case (111) is provided with mount pad (110), mount pad (110) are installed on one side that second driving motor (109) were kept away from in water storage box (104).

3. The high-strength permanent magnetic ferrite magnetic shoe according to claim 2, wherein a second driving sprocket (113) and a second driven sprocket (114) are respectively disposed at two ends of an inner cavity of the second transmission box (111), the second driving sprocket (113) and the second driven sprocket (114) are connected through a chain, the second driving sprocket (113) is sleeved on an output shaft of the second driving motor (109), the second driven sprocket (114) is sleeved on a top end of a second transmission shaft (115), the second transmission shaft (115) is installed on the mounting base (110) in a penetrating manner and is rotatably connected with the mounting base (110), an upper grinding disc (117) is sleeved at a bottom end of the second transmission shaft (115), a sealing cover (116) is movably sleeved between the mounting base (110) and the upper grinding disc (117) of the second transmission shaft (115), and a water delivery pipe (118) is installed on the sealing cover (116), one end of the water conveying pipe (118) far away from the sealing cover (116) is communicated to the bottom of one side of the water storage tank (104).

4. The high-strength permanent ferrite magnetic shoe according to claim 2, wherein a first driving sprocket (119) and a first driven sprocket (120) are respectively disposed at two ends of an inner cavity of the first transmission box (105), the first driving sprocket (119) and the first driven sprocket (120) are connected by a chain, the first driving sprocket (119) is sleeved on an output shaft of the first driving motor (106), the first driven sprocket (120) is sleeved at a bottom end of the first transmission shaft (121), the first transmission shaft (121) is penetratingly mounted on a support seat (122) and rotatably connected with the support seat (122), the support seat (122) is mounted on an end of the top of the first transmission box (105) far away from the first driving motor (106), a top end of the first transmission shaft (121) penetrates through a material receiving groove (103) and a grinding drum (108) and is sleeved with a lower grinding disc (123), the lower grinding disc (123) and the upper grinding disc (117) are matched components, and a plurality of discharge holes (124) are formed in the outer edge of the bottom of the grinding cylinder (108) in an equal radian mode.

5. The high-strength permanent magnetic ferrite magnetic shoe according to claim 2, the dehydration mechanism (200) comprises a mounting frame (201), a dehydration box (202), a feed inlet (203), a dehydration motor (204), a water collection box (205), a material collection box (206), a connecting plate (207), a limiting plate (208), a positioning plate (209), a linkage shaft (210), a filter cylinder (211), a feed pipe (212) and spiral conveying blades (213), the top of the mounting frame (201) is provided with a dewatering box (202), a water collecting box (205) and a material collecting box (206) are arranged below the dewatering box (202), the water collecting tank (205) and the material collecting tank (206) are both positioned in the inner cavity of the mounting frame (201), a feed inlet (203) is formed in one end of the top of the dewatering box (202), and the feed inlet (203) is communicated with the bottom end of the guide pipe (107).

6. The high-strength permanent magnetic ferrite magnetic shoe according to claim 5, a positioning plate (209) is arranged in the inner cavity of the dewatering box (202), a filter cylinder (211) is arranged between the positioning plate (209) and the inner wall of one end of the dewatering box (202), a plurality of connecting plates (207) are sleeved on the filter cylinder (211) at equal intervals, two sides of the connecting plates (207) are respectively installed on the inner walls of two sides of the dewatering box (202), a limiting plate (208) is arranged on one side of the positioning plate (209) through a bolt, a gap is formed between the limiting plate (208) and one end of the filter cylinder (211), a feed pipe (212) is arranged at the top of the other end of the filter cylinder (211), the top end of the feed pipe (212) is communicated to the feed port (203), and the height of the bottom of the filter cartridge (211) close to one end of the feed pipe (212) is lower than that far away from the bottom of one end of the feed pipe (212).

7. The high-strength permanent magnetic ferrite magnetic shoe as claimed in claim 5, characterized in that one end of the dewatering box (202) is provided with a dewatering motor (204), an output shaft of the dewatering motor (204) is provided with a linkage shaft (210), the linkage shaft (210) is installed on the dewatering box (202) in a penetrating manner and is rotatably connected with the dewatering box (202), one end of the linkage shaft (210) close to the dewatering motor (204) is provided with a spiral conveying blade (213), and the spiral conveying blade (213) is located in an inner cavity of the filter cylinder (211).

8. The method for preparing the high-strength permanent magnetic ferrite magnetic shoe according to claim 1, characterized by comprising the following steps:

the method comprises the following steps: weighing raw materials according to the weight parts, mixing the raw materials, and uniformly mixing to obtain a mixed raw material;

step two: adding the mixed raw materials into a grinding cylinder (108) of the raw material processing equipment, falling to the top of a lower grinding disc (123), starting a jacking cylinder (112), enabling a movable rod of the jacking cylinder (112) to contract to drive a water storage tank (104) to descend, enabling an upper grinding disc (117) to enter the grinding cylinder (108) and approach the lower grinding disc (123), and connecting a sealing cover (116) to the grinding cylinder (108) through a bolt;

step three: conveying clean water in a water storage tank (104) to a grinding cylinder (108) through a conveying water pipe (118), starting a first driving motor (106), driving a first transmission shaft (121) to rotate by the operation of the first driving motor (106) through a first driving chain wheel (119) and a first driven chain wheel (120), so as to drive a lower grinding disc (123) to rotate, starting a second driving motor (109), driving a second transmission shaft (115) to rotate by the operation of the second driving motor (109) through a second driving chain wheel (113) and a second driven chain wheel (114), so as to drive an upper grinding disc (117) to rotate in a direction opposite to that of the lower grinding disc (123), and grinding mixed raw materials are ground by the rotating upper grinding disc (117) and the lower grinding disc (123);

step four: dispersing the ground mixed raw materials into clear water to obtain mixed slurry, discharging the mixed slurry from a gap between a lower grinding disc (123) and the inner wall of a grinding cylinder (108), and discharging the mixed slurry to a material receiving groove (103) through a discharge hole (124) for storage;

step five: the mixed slurry in the material receiving groove (103) enters an inner cavity of the filter cylinder (211) through the guide pipe (107) and the feeding pipe (212), the dewatering motor (204) is started, the dewatering motor (204) operates to drive the linkage shaft (210) and the spiral conveying blade (213) to rotate, the rotating spiral conveying blade (213) conveys the mixed slurry forwards, as the mixed slurry moves from the lower part to the higher part of the filter cylinder (211), part of water in the mixed slurry is extruded out and is discharged into the water collecting tank (205) through the side wall of the filter cylinder (211), the rest mixed slurry is discharged from the space between the filter cylinder (211) and the limiting plate (208) and falls into the material collecting tank (206) for collection, and raw material slurry with the particle size of 1-2 mu m and the water content of 32-35% is obtained;

step six: injecting the raw material slurry into a mold, pressing under the pressure of 20-22MPa to form a green body, then placing the green body into a furnace body with the temperature of 1150-.

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