CN117160601B - Preparation equipment and method of surface modified silicon micropowder - Google Patents
Preparation equipment and method of surface modified silicon micropowder Download PDFInfo
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- CN117160601B CN117160601B CN202311134272.6A CN202311134272A CN117160601B CN 117160601 B CN117160601 B CN 117160601B CN 202311134272 A CN202311134272 A CN 202311134272A CN 117160601 B CN117160601 B CN 117160601B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 4
- 238000000227 grinding Methods 0.000 claims abstract description 168
- 230000007246 mechanism Effects 0.000 claims abstract description 103
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 19
- 238000012216 screening Methods 0.000 claims abstract description 17
- 238000007664 blowing Methods 0.000 claims abstract description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 40
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 36
- 239000002994 raw material Substances 0.000 claims description 17
- 238000003825 pressing Methods 0.000 claims description 15
- 239000000377 silicon dioxide Substances 0.000 claims description 14
- 150000003376 silicon Chemical class 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- 230000002596 correlated effect Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 239000011863 silicon-based powder Substances 0.000 description 35
- 235000013312 flour Nutrition 0.000 description 10
- 230000004048 modification Effects 0.000 description 9
- 238000012986 modification Methods 0.000 description 9
- 239000004744 fabric Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 229910021487 silica fume Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Crushing And Grinding (AREA)
Abstract
The invention relates to preparation equipment and a preparation method of surface modified silicon micro powder, and relates to the technical field of preparation of surface modified silicon micro powder; the grinding device is characterized in that an air supply mechanism, a grinding disc, a grinding rod and a screening mechanism are sequentially arranged in the grinding cavity from bottom to top, the upper surfaces of the grinding rod and the grinding disc are attached, a lantern ring is arranged on the outer side of the grinding disc, a plurality of air inlets are formed in the lantern ring, a driving mechanism connected with the grinding disc is arranged at the bottom of the shell, a rotating shaft of the grinding disc is connected with the air supply mechanism through a transmission mechanism and a clutch mechanism, and the clutch mechanism is used for enabling the rotating shaft of the grinding disc to be connected with or disconnected from the air supply mechanism. The invention can keep the rotating shaft of the grinding disc connected with or disconnected from the air supply mechanism through the clutch mechanism, and can simultaneously realize grinding and blowing the ground surface modified silicon micro powder to the discharge port.
Description
Technical Field
The invention relates to the technical field of preparation of surface modified silicon micropowder, in particular to preparation equipment and a method for the surface modified silicon micropowder.
Background
The surface-modified silica micropowder refers to a material in which the surface of the silica micropowder is chemically treated or physically modified to change its surface properties and enhance its adaptability and application properties. Generally, the silicon micropowder has high specific surface area and strong adsorption capacity, but has low surface activity, and aggregation easily occurs among the powders, so that the silicon micropowder is difficult to disperse and uniformly distribute. The purpose of surface modification is to change the surface property of the silicon micropowder, so that the silicon micropowder has better properties of dispersibility, thickening property, toughness, reinforcing property and the like in different application fields.
The mechanical synthesis grinds through the mill, can make surface modification silica flour more even and tiny, strengthen its dispersibility, the preparation of surface modification silica flour is in the mill with surface modification silica flour raw and other materials input mill, surface modification silica flour raw and other materials fall on the mill of mill, be provided with a plurality of grinding rods on the mill, rotatory through motor drive mill, in order to drive surface modification silica flour raw and other materials and rotate on the mill, make surface modification silica flour raw and remove to the edge of mill under the effect of centrifugal force, and under the extrusion of mill and grinding rod, under the friction effect, make surface modification silica flour raw and other materials ground into silica flour, a plurality of wind gaps have been seted up in the outside of mill, blow to wind gap department through the air-blower, in order to blow the silica flour of grinding to predetermineeing the size, and blow out from the delivery outlet at mill top, but at present, the wind-force of air-blower blowing to wind gap department probably inhomogeneous, lead to the silica flour to not blown up by fine. In order to solve the problems, the invention provides a preparation device and a preparation method of surface modified micro silicon powder.
Disclosure of Invention
The technical problems to be solved are as follows:
The invention aims to overcome the defects of the prior art that the wind power of a blower cannot be uniformly blown to a tuyere, and the wind power of part of the tuyere is insufficient, and adapt to the actual needs, and provides preparation equipment and a preparation method of surface modified micro silicon powder, so as to solve the technical problems.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
the preparation equipment of the surface modified micro silicon powder comprises a shell, wherein a grinding cavity is formed in the shell, a discharge port, a feed port and an air supply port which are communicated with the grinding cavity are respectively formed in the top, the middle and the bottom of the shell, and an air blower is arranged at the input end of the air supply port;
the grinding cavity is internally provided with an air supply mechanism, a grinding disc, a grinding rod and a screening mechanism from bottom to top in sequence, the upper surfaces of the grinding rod and the grinding disc are attached, the outer side of the grinding disc is provided with a lantern ring, a plurality of air inlets are formed in the lantern ring, the bottom of the shell is provided with a driving mechanism connected with the grinding disc, a rotating shaft of the grinding disc is connected with the air supply mechanism through a transmission mechanism and a clutch mechanism, and the clutch mechanism is used for enabling the rotating shaft of the grinding disc to be connected with or disconnected from the air supply mechanism.
Further, the air supply mechanism comprises a rotary sleeve, the rotary sleeve is rotatably arranged in the grinding cavity, and a plurality of fan blades are arranged on the inner side of the rotary sleeve along the circumferential direction.
Further, a circle of tooth-shaped protrusions are arranged on the inner side of the bottom of the rotary sleeve;
The transmission mechanism comprises a first gear, a second gear, a third gear and a fourth gear, the first gear is arranged on a rotating shaft of the grinding disc, the second gear and the fourth gear are rotatably arranged on the inner wall of the grinding cavity, the third gear is connected with the clutch mechanism, the first gear, the second gear, the third gear and the fourth gear are sequentially meshed, and the clutch mechanism is used for driving the third gear to rotate around the axis of the grinding disc so that the third gear is close to or far away from the second gear and the fourth gear, and a fifth gear meshed with the tooth-shaped protrusion is arranged on the rotating shaft of the fourth gear.
Further, the clutch mechanism comprises a fixed plate, a sliding block and a pushing cylinder, the fixed plate is arranged on the inner wall of the grinding cavity, an arc-shaped chute coaxial with a rotating shaft of the grinding disc is formed in the fixed plate, the sliding block is arranged in the arc-shaped chute and can move along the arc-shaped chute, the rotating shaft of the third gear is hinged to the sliding block, the pushing cylinder is movably connected to the fixed plate, and a push rod of the pushing cylinder is hinged to the rotating shaft of the third gear.
Further, the one end that second gear and fourth gear were kept away from to the slider is provided with the arc pole, the fixed plate is run through to the arc pole, the outside of arc pole is provided with first spring, first spring is located the arc spout.
Further, the grinding rod comprises a connecting rod, a grinding roller and a multistage pressing mechanism, one end of the connecting rod is hinged to the inner wall of the grinding cavity and can vertically rotate in a vertical plane, the other end of the connecting rod is provided with a mounting shaft, the grinding roller is arranged on the mounting shaft, the multistage pressing mechanism is arranged on the inner wall of the grinding cavity and is located above the connecting rod, the multistage pressing mechanism is used for providing an elastic force for the connecting rod to rotate downwards, and the elastic force is positively correlated with the upward rotating angle of the connecting rod.
Further, multistage hold-down mechanism includes articulated seat, one-level elastic rod and second grade elastic rod, articulated seat sets up on the inner wall in grinding the chamber, one end of one-level elastic rod articulates on articulated seat, and the other end articulates on the connecting rod, the second grade elastic rod sets up in the top of one-level elastic rod, the one end of second grade elastic rod articulates on articulated seat, and the other end articulates on the connecting rod, one-level elastic rod is used for providing a rotatory elasticity downwards for the connecting rod after the connecting rod upwards rotates, the second grade elastic rod is used for providing a rotatory elasticity downwards for the connecting rod after the connecting rod upwards rotates the preset angle.
Further, screening mechanism includes motor, one-level umbrella-shaped screen cloth and second grade umbrella-shaped screen cloth, the motor sets up in the casing top, one-level umbrella-shaped screen cloth and second grade umbrella-shaped screen cloth are from bottom to top set up in the upper portion in grinding chamber in order, and one-level umbrella-shaped screen cloth and second grade umbrella-shaped screen cloth are connected with the pivot of motor, the sieve pore aperture of one-level umbrella-shaped screen cloth is greater than the sieve pore aperture of second grade umbrella-shaped screen cloth.
The preparation method of the surface modified silicon micropowder comprises the following steps:
step 1, inputting a surface modified micro silicon powder raw material into a grinding cavity from a feed inlet;
Step 2, rotating the grinding disc, throwing the surface modified micro silicon powder raw material on the grinding disc to the outer side of the grinding disc under the action of centrifugal force, and grinding the surface modified micro silicon powder raw material into powder by the cooperation of the grinding rod and the grinding disc to obtain the surface modified micro silicon powder;
And 3, blowing air to the upper part of the grinding cavity through the air port so as to blow up the surface modified micro silicon powder, discharging the surface modified micro silicon powder which can pass through the screening mechanism from the discharge port, and enabling the micro silicon powder which cannot pass through the screening mechanism to fall onto the grinding disc for continuous grinding.
(3) The beneficial effects are that:
1. The air supply mechanism is arranged below the air port, the air supply mechanism can increase the wind power at the air port so that the wind power of all the air ports can meet the preset requirement, the ground surface modified silica fume is properly blown up, the air supply mechanism is connected with the rotating shaft of the grinding disc through the transmission mechanism and the clutch mechanism, the output shaft of the driving mechanism is connected with the rotating sleeve through the clutch mechanism, the output shaft of the driving mechanism is connected with the rotating sleeve and drives the rotating sleeve to rotate, the wind power at the air port is increased, the ground silica fume can be simultaneously blown to the discharge port, and the rotating shaft of the grinding disc is connected with or disconnected from the air supply mechanism through the clutch mechanism, so that the flexible control of the transmission mechanism is realized;
2. The multistage pressing mechanism of the grinding rod provides downward rotation elasticity for the grinding roller so that the grinding roller is always clung to the grinding disc, when the gap between the grinding roller and the grinding disc is provided with surface modified silica fume raw materials, the grinding roller can be lifted upwards, and at the moment, the multistage pressing mechanism can apply downward rotation elasticity for one grinding roller according to the upward lifting angle of the grinding roller, so that the grinding roller presses the surface modified silica fume raw materials between the gaps, and the grinding effect is improved;
3. According to the invention, the screening mechanism is arranged at the upper part of the grinding cavity and comprises the first-stage umbrella-shaped screen mesh and the second-stage umbrella-shaped screen mesh, the pore diameters of the two-stage umbrella-shaped screen mesh are different, the two umbrella-shaped screen meshes are driven to rotate by the motor during operation, and the two umbrella-shaped screen meshes can separate the upper part and the middle part of the grinding cavity, so that surface modified micro silicon powder blown upwards can be discharged from the discharge hole only by sequentially passing through the two umbrella-shaped screen meshes, and a certain rising speed is required for the sieve pores passing through the umbrella-shaped screen meshes, namely the particle size of the surface modified micro silicon powder is required to be smaller than a preset value to pass through the two umbrella-shaped screen meshes, and the graded screening of micro silicon powder with different particle sizes can be realized, and the product quality is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the grinding disc, transmission mechanism and clutch mechanism of the present invention;
FIG. 3 is a schematic view of the abrasive disk, transmission mechanism and clutch mechanism of the present invention at another angle;
Fig. 4 is a schematic structural view of the multistage pressing mechanism of the present invention.
The reference numerals are as follows: 1. A housing; 11. a grinding chamber; 12. a discharge port; 13. a feed inlet; 14. an air supply port; 2. a blower; 3. an air supply mechanism; 31. a rotating sleeve; 32. a fan blade; 33. tooth-shaped protrusions; 4. a grinding disc; 41. a collar; 411. an air port; 5. a grinding rod; 51. a connecting rod; 511. a connecting seat; 52. grinding roller; 53. a multistage pressing mechanism; 531. a hinge base; 532. a primary spring rod; 5321. a first outer sleeve; 5322. a first inner rod; 5323. a second spring; 533. a secondary spring rod; 5331. a second outer sleeve; 5332. a middle sleeve; 5333. a second inner rod; 5334. a third spring; 6. a screening mechanism; 61. a motor; 62. a first-stage umbrella-shaped screen; 63. a second-stage umbrella-shaped screen; 7. a driving mechanism; 8. a transmission mechanism; 81. a first gear; 82. a second gear; 83. a third gear; 84. a fourth gear; 85. a fifth gear; 9. a clutch mechanism; 91. a fixing plate; 911. an arc chute; 92. a slide block; 921. an arc-shaped rod; 922. a first spring; 93. pushing the cylinder.
Detailed Description
The invention is further illustrated by the following examples in connection with figures 1-4:
The preparation equipment of the surface modified micro silicon powder comprises a shell 1, wherein a grinding cavity 11 is formed in the shell 1, a discharge port 12, a feed port 13 and an air supply port 14 which are communicated with the grinding cavity 11 are respectively formed in the top, the middle and the bottom of the shell 1, and an air blower 2 is arranged at the input end of the air supply port 14;
The grinding cavity 11 is internally and sequentially provided with an air supply mechanism 3, a grinding disc 4, a grinding rod 5 and a screening mechanism 6 from bottom to top, the upper surfaces of the grinding rod 5 and the grinding disc 4 are attached, the outer side of the grinding disc 4 is provided with a lantern ring 41, a plurality of air inlets 411 are formed in the lantern ring 41, the bottom of the shell 1 is provided with a driving mechanism 7 connected with the grinding disc 4, a rotating shaft of the grinding disc 4 is connected with the air supply mechanism 3 through a transmission mechanism 8 and a clutch mechanism 9, and the clutch mechanism 9 is used for enabling the rotating shaft of the grinding disc 4 to be connected with the air supply mechanism 3 or disconnected.
The preparation method of the surface modified silicon micropowder comprises the following steps:
Step 1, inputting a surface modified micro silicon powder raw material into a grinding cavity 11 from a feed inlet 13;
Step 2, rotating the grinding disc 11, throwing the surface modified micro silicon powder raw material on the grinding disc 11 to the outer side of the grinding disc 11 under the action of centrifugal force, and grinding the surface modified micro silicon powder raw material into powder through the cooperation of the grinding rod 5 and the grinding disc 11, namely the surface modified micro silicon powder;
And 3, blowing air to the upper part of the grinding cavity 11 through the air port 411 so as to blow up the surface modified micro silicon powder, wherein the surface modified micro silicon powder which can pass through the screening mechanism 6 is discharged from the discharge port 12, and the micro silicon powder which cannot pass through the screening mechanism 6 falls onto the grinding disc 4 to be continuously ground.
By adopting the technical scheme, when the wind power of the wind gap is required to be increased, the clutch mechanism can enable the rotating shaft of the grinding disc to be connected with or disconnected from the air supply mechanism, flexible control of the transmission mechanism is realized, the air supply mechanism is driven through the rotating shaft of the grinding disc, and grinding and blowing of the ground surface modified silica fume to the discharge hole 12 can be realized simultaneously.
Example 1:
As shown in fig. 2 and 3, the air supply mechanism 3 includes a rotating sleeve 31, the rotating sleeve 31 is rotatably disposed in the grinding chamber 11, and a plurality of fan blades 32 are disposed on the inner side of the rotating sleeve 31 along the circumferential direction.
A circle of tooth-shaped protrusions 33 are arranged on the inner side of the bottom of the rotary sleeve 31;
The transmission mechanism 8 comprises a first gear 81, a second gear 82, a third gear 83 and a fourth gear 84, the first gear 81 is arranged on a rotating shaft of the grinding disc 4, the second gear 82 and the fourth gear 84 are rotatably arranged on the inner wall of the grinding cavity 11, the third gear 83 is connected with the clutch mechanism 9, the first gear 81, the second gear 82, the third gear 83 and the fourth gear 84 are sequentially meshed, and the clutch mechanism 9 is used for driving the third gear 83 to rotate around the axis of the grinding disc 4 so that the third gear 83 is close to the second gear 82 and the fourth gear 84 or far away from the second gear 82 and the fourth gear 84, and a fifth gear 85 meshed with the tooth-shaped protrusion 33 is arranged on the rotating shaft of the fourth gear 84.
The transmission mechanism 8 adopts a gear transmission mode, so that efficient energy transmission and rotation speed conversion can be realized, rolling motion is transmitted during gear engagement, and compared with sliding friction, the transmission efficiency is higher, and can reach more than 97%, so that energy loss is greatly reduced. The gear transmission has the advantages of simple structure, small friction among parts, less abrasion, longer service life and stable working performance, and can ensure the reliable operation of a transmission system only by carrying out timely lubrication and maintenance.
The clutch mechanism 9 comprises a fixed plate 91, a sliding block 92 and a pushing cylinder 93, the fixed plate 91 is arranged on the inner wall of the grinding cavity 11, an arc-shaped sliding groove 911 coaxial with the rotating shaft of the grinding disc 4 is formed in the fixed plate 91, the sliding block 92 is arranged in the arc-shaped sliding groove 911 and can move along the arc-shaped sliding groove 911, the rotating shaft of the third gear 83 is hinged to the sliding block 92, the pushing cylinder 93 is movably connected to the fixed plate 91, and a push rod of the pushing cylinder 93 is hinged to the rotating shaft of the third gear 83.
One end of the slider 92 away from the second gear 82 and the fourth gear 84 is provided with an arc-shaped rod 921, the arc-shaped rod 921 penetrates through the fixing plate 91, a first spring 922 is arranged on the outer side of the arc-shaped rod 921, and the first spring 922 is located in the arc-shaped sliding groove 911.
When the grinding device is used, the rotating shaft of the third gear 83 is pushed by the pushing cylinder 93 to move along the arc-shaped sliding groove 911 so as to be separated from the meshing with other gears or to be meshed with other gears again, so that the rotating shaft of the grinding disc is kept connected or separated from the air supply mechanism, the wind force at the air port 411 can be increased according to the requirement, and the ground surface modified micro silicon powder can be blown up correctly.
Example 2:
As shown in fig. 4, the grinding rod 5 includes a connecting rod 51, a grinding roller 52 and a multistage pressing mechanism 53, one end of the connecting rod 51 is hinged on the inner wall of the grinding chamber 11 and can rotate up and down in a vertical plane, the other end of the connecting rod 51 is provided with a mounting shaft, the grinding roller 52 is arranged on the mounting shaft, the multistage pressing mechanism 53 is arranged on the inner wall of the grinding chamber 11 and is located above the connecting rod 51, the multistage pressing mechanism 53 is used for providing a downward rotating elastic force for the connecting rod 51, and the magnitude of the elastic force is positively correlated with the upward rotating angle of the connecting rod 51.
The multi-stage pressing mechanism 53 includes a hinge seat 531, a primary elastic rod 532, and a secondary elastic rod 533, where the hinge seat 531 is disposed on an inner wall of the grinding chamber 11, one end of the primary elastic rod 532 is hinged on the hinge seat 531, the other end is hinged on the connecting rod 51, the secondary elastic rod 533 is disposed above the primary elastic rod 532, one end of the secondary elastic rod 533 is hinged on the hinge seat 531, the other end is hinged on the connecting rod 51, the primary elastic rod 532 is used to provide a downward rotation elastic force for the connecting rod 51 after the connecting rod 51 rotates upward, and the secondary elastic rod 533 is used to provide a downward rotation elastic force for the connecting rod 51 after the connecting rod 51 rotates upward by a preset angle;
Specifically, the middle part of the connecting rod 51 is provided with a connecting seat 511, the primary elastic rod 532 includes a first outer sleeve 5321, a first inner rod 5322 and a second spring 5323, the first inner rod 5322 is disposed in the first outer sleeve 5321 and can stretch out and draw back in the first outer sleeve 5321, the second spring 5323 is disposed outside the first inner rod 5322, the second spring 5323 is used for pushing the first inner rod 5322 to extend out, the secondary elastic rod 533 includes a second outer sleeve 5331, a middle sleeve 5332, a second inner rod 5333 and a third spring 5334, the middle sleeve 5332 is disposed in the second outer sleeve 5331 and can stretch out and draw back in the second outer sleeve 5331, the second inner rod 5333 is disposed in the middle sleeve 5332 and can stretch out and draw back in the middle sleeve 5332, the third spring 5334 is disposed outside the second inner rod 5333, and the third spring 5334 is used for pushing the second inner rod 5333 to extend out;
When the grinding roller 52 rotates upward, the second spring 5323 is compressed, thereby providing the grinding roller 52 with a downward-rotating elastic force, and the elastic force value increases as the upward-rotating angle of the grinding roller 52 increases; when the angle of upward rotation of the grinding roller 52 reaches a preset value, i.e., the middle sleeve 5332 is completely retracted into the second outer sleeve 5331, the third spring 5334 is compressed, thereby providing the grinding roller 52 with a downward rotation elastic force, and the elastic force increases as the upward rotation angle of the grinding roller 52 increases, and the grinding roller is simultaneously pushed to rotate downward by the second spring 5323 and the third spring 5334.
Example 3:
The screening mechanism 6 comprises a motor 61, a first-stage umbrella-shaped screen mesh 62 and a second-stage umbrella-shaped screen mesh 63, the motor 61 is arranged at the top of the shell 1, the first-stage umbrella-shaped screen mesh 62 and the second-stage umbrella-shaped screen mesh 63 are sequentially arranged on the upper part of the grinding cavity 11 from bottom to top, the first-stage umbrella-shaped screen mesh 62 and the second-stage umbrella-shaped screen mesh 63 are connected with a rotating shaft of the motor 61, the mesh aperture of the first-stage umbrella-shaped screen mesh 62 is larger than the mesh aperture of the second-stage umbrella-shaped screen mesh 63, the mesh aperture of the second-stage umbrella-shaped screen mesh is different, classified screening of microsilica with different particle sizes can be realized, and the product quality is improved.
The working principle of the invention is as follows:
Inputting the surface modified micro silicon powder raw material into the grinding cavity 11 from the feed inlet 13, wherein the surface modified micro silicon powder raw material falls on the grinding disc 4 under the action of gravity;
The grinding disc 4 is driven to rotate by the driving mechanism 7, the surface modified micro silicon powder raw material on the grinding disc 4 moves towards the edge of the grinding disc 4 under the action of centrifugal force, and as the grinding roller 52 is attached to the grinding disc 4, the grinding roller 52 is driven to rotate relatively when the grinding disc 4 rotates, when the surface modified micro silicon powder raw material moves between the grinding disc 4 and the grinding roller 52, the surface modified micro silicon powder raw material is ground by the grinding disc 4 and the grinding roller 52, and the surface modified micro silicon powder raw material is crushed into powder, namely the surface modified micro silicon powder;
The blower 2 sends air flow to the lower part of the grinding cavity 11 through the air supply opening 14, after the air flow enters the lower part of the grinding cavity 11, the air flow is blown upwards from the air opening 411 to blow up powdery surface modified micro silicon powder upwards, the rising speed of the surface modified micro silicon powder with smaller particle size is faster, the motor 61 drives the first-stage umbrella-shaped screen 62 and the second-stage umbrella-shaped screen 63 to rotate at the upper part of the grinding cavity 11, under the rotating action, the surface modified micro silicon powder needs a certain speed requirement when passing through the first-stage umbrella-shaped screen 62 and the second-stage umbrella-shaped screen 63, namely the particle size of the surface modified micro silicon powder needs to be smaller than a preset value, the surface modified micro silicon powder with the particle size which does not reach the preset value is sprung up by the first-stage umbrella-shaped screen 62 and the second-stage umbrella-shaped screen 63, and finally falls onto the grinding disc 4 to continue grinding until the particle size is smaller than the preset value;
In order to make the wind power blown out of each wind gap 411 basically the same in size so as to be capable of blowing up the surface modified micro silicon powder, an air supply mechanism 3 is further arranged below the wind gap 411, when the wind blowing is needed, a pushing cylinder 93 pushes the rotation shaft of a third gear 83 to approach a second gear 82 and a fourth gear 84 until the third gear 83 is meshed with the second gear 82 and the fourth gear 84, and the rotation shaft of a grinding disc 4 sequentially transmits power to a rotating sleeve 31 through the first gear, the second gear, the third gear, the fourth gear and the fifth gear so as to drive the rotating sleeve 31 to rotate, thereby driving all fan blades 32 to rotate so as to increase the wind power at the wind gap 411; when the wind power at the wind port 411 does not need to be increased, the pushing cylinder 93 pushes the rotation shaft of the third gear 83 to the second gear 82 and the fourth gear 84 away so as to separate the third gear 83 from the second gear 82 and the fourth gear 84, so that the rotating sleeve 31 loses power;
when the slide block 92 moves along the arc chute 911 to make the third gear 83 approach the second gear 82 and the fourth gear 84, the first spring 922 pushes the slide block 92 to form a power-assisted force; when the slider 92 moves along the arc-shaped chute 911 to move the third gear 83 away from the second gear 82 and the fourth gear 84, the first spring 922 is compressed to accumulate elastic potential energy. The embodiments of the present invention are disclosed as preferred embodiments, but not limited thereto, and those skilled in the art will readily appreciate from the foregoing description that various extensions and modifications can be made without departing from the spirit of the present invention.
Claims (5)
1. The preparation equipment of the surface modified silica powder is characterized by comprising a shell (1), wherein a grinding cavity (11) is formed in the shell (1), a discharge port (12), a feed port (13) and an air supply port (14) which are communicated with the grinding cavity (11) are respectively formed in the top, the middle and the bottom of the shell (1), and an air blower (2) is arranged at the input end of the air supply port (14);
the grinding device is characterized in that an air supply mechanism (3), a grinding disc (4), a grinding rod (5) and a screening mechanism (6) are sequentially arranged in the grinding cavity (11) from bottom to top, the upper surfaces of the grinding rod (5) and the grinding disc (4) are attached, a lantern ring (41) is arranged on the outer side of the grinding disc (4), a plurality of air inlets (411) are formed in the lantern ring (41), a driving mechanism (7) connected with the grinding disc (4) is arranged at the bottom of the shell (1), a rotating shaft of the grinding disc (4) is connected with the air supply mechanism (3) through a transmission mechanism (8) and a clutch mechanism (9), and the clutch mechanism (9) is used for enabling the rotating shaft of the grinding disc (4) to be connected with the air supply mechanism (3) or disconnected; the air supply mechanism (3) comprises a rotary sleeve (31), the rotary sleeve (31) is rotatably arranged in the grinding cavity (11), and a plurality of fan blades (32) are arranged on the inner side of the rotary sleeve (31) along the circumferential direction; a circle of tooth-shaped bulges (33) are arranged on the inner side of the bottom of the rotary sleeve (31);
the transmission mechanism (8) comprises a first gear (81), a second gear (82), a third gear (83) and a fourth gear (84), wherein the first gear (81) is arranged on a rotating shaft of the grinding disc (4), the second gear (82) and the fourth gear (84) are rotatably arranged on the inner wall of the grinding cavity (11), the third gear (83) is connected with the clutch mechanism (9), the first gear (81), the second gear (82), the third gear (83) and the fourth gear (84) are sequentially meshed, and the clutch mechanism (9) is used for driving the third gear (83) to rotate around the axis of the grinding disc (4) so that the third gear (83) is close to the second gear (82) and the fourth gear (84) or far away from the second gear (82) and the fourth gear (84), and a fifth gear (85) meshed with the tooth-shaped bulge (33) is arranged on the rotating shaft of the fourth gear (84); the clutch mechanism (9) comprises a fixed plate (91), a sliding block (92) and a pushing cylinder (93), wherein the fixed plate (91) is arranged on the inner wall of the grinding cavity (11), an arc-shaped sliding groove (911) coaxial with a rotating shaft of the grinding disc (4) is formed in the fixed plate (91), the sliding block (92) is arranged in the arc-shaped sliding groove (911) and can move along the arc-shaped sliding groove (911), the rotating shaft of the third gear (83) is hinged to the sliding block (92), the pushing cylinder (93) is movably connected to the fixed plate (91), and a push rod of the pushing cylinder (93) is hinged to the rotating shaft of the third gear (83); one end that second gear (82) and fourth gear (84) were kept away from to slider (92) is provided with arc pole (921), fixed plate (91) are run through to arc pole (921), the outside of arc pole (921) is provided with first spring (922), first spring (922) are located arc spout (911).
2. The preparation device of surface modified silica micropowder according to claim 1, characterized in that the grinding rod (5) comprises a connecting rod (51), a grinding roller (52) and a multistage pressing mechanism (53), one end of the connecting rod (51) is hinged on the inner wall of the grinding cavity (11) and can rotate up and down in a vertical plane, the other end of the connecting rod (51) is provided with a mounting shaft, the grinding roller (52) is arranged on the mounting shaft, the multistage pressing mechanism (53) is arranged on the inner wall of the grinding cavity (11) and is positioned above the connecting rod (51), the multistage pressing mechanism (53) is used for providing a downward rotating elastic force for the connecting rod (51), and the size of the elastic force is positively correlated with the upward rotating angle of the connecting rod (51).
3. The apparatus for preparing surface-modified fine silica powder according to claim 2, wherein the multi-stage pressing mechanism (53) comprises a hinge base (531), a primary elastic rod (532) and a secondary elastic rod (533), the hinge base (531) is disposed on an inner wall of the grinding chamber (11), one end of the primary elastic rod (532) is hinged on the hinge base (531), the other end is hinged on the connecting rod (51), the secondary elastic rod (533) is disposed above the primary elastic rod (532), one end of the secondary elastic rod (533) is hinged on the hinge base (531), the other end is hinged on the connecting rod (51), the primary elastic rod (532) is used for providing a downward rotating elastic force for the connecting rod (51) after the connecting rod (51) rotates upward by a preset angle, and the secondary elastic rod (533) is used for providing a downward rotating elastic force for the connecting rod (51) after the connecting rod (51) rotates upward by a preset angle.
4. The preparation equipment of surface modified silica micropowder according to claim 1, characterized in that the screening mechanism (6) comprises a motor (61), a first-stage umbrella-shaped screen (62) and a second-stage umbrella-shaped screen (63), the motor (61) is arranged at the top of the shell (1), the first-stage umbrella-shaped screen (62) and the second-stage umbrella-shaped screen (63) are sequentially arranged at the upper part of the grinding cavity (11) from bottom to top, the first-stage umbrella-shaped screen (62) and the second-stage umbrella-shaped screen (63) are connected with the rotating shaft of the motor (61), and the mesh aperture of the first-stage umbrella-shaped screen (62) is larger than that of the second-stage umbrella-shaped screen (63).
5. A method for preparing surface-modified fine silica powder, using the apparatus for preparing surface-modified fine silica powder according to any one of claims 1 to 4, characterized by comprising the steps of:
step 1, inputting a surface modified silicon micro powder raw material into a grinding cavity (11) from a feed inlet (13);
step 2, rotating the grinding disc (4), throwing the surface modified silicon micro powder raw material on the grinding disc (4) to the outer side of the grinding disc (4) under the action of centrifugal force, and grinding the surface modified silicon micro powder raw material into powder by the cooperation of the grinding rod (5) and the grinding disc (4), namely the surface modified silicon micro powder;
And 3, blowing air to the upper part of the grinding cavity (11) through the air port (411) so as to blow up the surface modified silicon micro powder, discharging the surface modified silicon micro powder which can pass through the screening mechanism (6) from the discharge port (12), and enabling the silicon micro powder which cannot pass through the screening mechanism (6) to fall onto the grinding disc (4) for continuous grinding.
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| CN202311134272.6A CN117160601B (en) | 2023-09-05 | 2023-09-05 | Preparation equipment and method of surface modified silicon micropowder |
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| CN202311134272.6A CN117160601B (en) | 2023-09-05 | 2023-09-05 | Preparation equipment and method of surface modified silicon micropowder |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB313690A (en) * | 1928-04-14 | 1929-06-20 | Ernst Curt Loesche | Improvements in or relating to crushing mills |
| CN107521001A (en) * | 2017-08-20 | 2017-12-29 | 杨松 | A kind of application method for preparing junked tire fine rubber powder steam protection mill |
| CN107570273A (en) * | 2017-08-29 | 2018-01-12 | 徐州汉唐瑞清科技有限公司 | A kind of abrasive disk type spring becomes loading middling speed pulverized coal preparation equipment |
| CN207307985U (en) * | 2017-09-26 | 2018-05-04 | 杭州丹尼建材有限公司 | A kind of vertical grinder for gangue production waterproof roll production line |
| CN110124804A (en) * | 2019-04-24 | 2019-08-16 | 哈尔滨博深科技发展有限公司 | ZGM type medium-speed pulverizer vane device |
-
2023
- 2023-09-05 CN CN202311134272.6A patent/CN117160601B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB313690A (en) * | 1928-04-14 | 1929-06-20 | Ernst Curt Loesche | Improvements in or relating to crushing mills |
| CN107521001A (en) * | 2017-08-20 | 2017-12-29 | 杨松 | A kind of application method for preparing junked tire fine rubber powder steam protection mill |
| CN107570273A (en) * | 2017-08-29 | 2018-01-12 | 徐州汉唐瑞清科技有限公司 | A kind of abrasive disk type spring becomes loading middling speed pulverized coal preparation equipment |
| CN207307985U (en) * | 2017-09-26 | 2018-05-04 | 杭州丹尼建材有限公司 | A kind of vertical grinder for gangue production waterproof roll production line |
| CN110124804A (en) * | 2019-04-24 | 2019-08-16 | 哈尔滨博深科技发展有限公司 | ZGM type medium-speed pulverizer vane device |
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