CN116689069B - Metal pollution-free silicon carbide synthetic material block crushing device - Google Patents
Metal pollution-free silicon carbide synthetic material block crushing device Download PDFInfo
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- CN116689069B CN116689069B CN202310738442.5A CN202310738442A CN116689069B CN 116689069 B CN116689069 B CN 116689069B CN 202310738442 A CN202310738442 A CN 202310738442A CN 116689069 B CN116689069 B CN 116689069B
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- plate
- pressing plate
- screen
- scraping
- silicon carbide
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Links
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 29
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 18
- 239000002184 metal Substances 0.000 title claims abstract description 18
- 229920002994 synthetic fiber Polymers 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 60
- 238000007790 scraping Methods 0.000 claims abstract description 57
- 238000003825 pressing Methods 0.000 claims abstract description 56
- 239000000843 powder Substances 0.000 claims abstract description 18
- 239000002245 particle Substances 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 239000002131 composite material Substances 0.000 claims description 8
- 229910052755 nonmetal Inorganic materials 0.000 claims description 8
- -1 polytetrafluoroethylene Polymers 0.000 claims description 7
- NFFIWVVINABMKP-UHFFFAOYSA-N methylidynetantalum Chemical compound [Ta]#C NFFIWVVINABMKP-UHFFFAOYSA-N 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 4
- 229910003468 tantalcarbide Inorganic materials 0.000 claims description 4
- 238000013519 translation Methods 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- UNASZPQZIFZUSI-UHFFFAOYSA-N methylidyneniobium Chemical compound [Nb]#C UNASZPQZIFZUSI-UHFFFAOYSA-N 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 239000002253 acid Substances 0.000 abstract description 12
- 238000005406 washing Methods 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 description 8
- 239000002699 waste material Substances 0.000 description 8
- 239000013078 crystal Substances 0.000 description 6
- 238000003912 environmental pollution Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C1/00—Crushing or disintegrating by reciprocating members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
-
- 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
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
The invention provides a metal pollution-free silicon carbide synthetic material block crushing device, wherein a driving motor is electrically connected to the top of a pressing plate in the silicon carbide synthetic material block crushing device, the driving motor is used for driving the pressing plate and a scraping piece to move, and the bottom edge of the pressing plate is movably connected with the edge of a screen plate through a guide shaft; the middle part of one side of the screen plate, which faces the pressing plate, is provided with a pressure-bearing table and a scraping piece, the scraping piece is used for stirring materials, one end of the screen plate, which corresponds to the pressure-bearing table, is provided with a supporting piece, and the other end of the supporting piece is fixedly connected into the top of the material collecting device; the vibrating device is installed to the bottom of aggregate unit, and vibrating device is provided with the discharge gate along one side that the material trend. According to the invention, through the combined arrangement of the components, the original shape of the synthetic powder is protected, the output of large particles smaller than 40 meshes is increased, an acid washing process is not required in the whole process, and the high-purity silicon carbide powder meeting the growth conditions can be obtained by only cleaning with pure water for 1-5 times.
Description
Technical Field
The invention belongs to the technical field of silicon carbide crushing research, and relates to a crushing device for a silicon carbide synthetic material block without metal pollution.
Background
Silicon carbide (SiC) is a third-generation semiconductor material with wide forbidden band, high critical electric field and high saturation mobility, has great advantages in the field of power devices, and is widely applied to the fields of new energy automobiles, photovoltaic power generation, railway traffic, power systems and the like.
However, siC crystal growth is extremely difficult due to the physical and chemical properties of SiC that are stable. The single crystal substrate for manufacturing the SiC device is mainly prepared by a Physical Vapor Transport (PVT) method, the raw material is SiC powder, and parameters such as purity, particle size, crystal form and the like of the powder have certain influence on the quality of SiC single crystal grown by the PVT method and the quality of the device manufactured later. The cost of the substrate sheet accounts for about 50% of the whole industrial chain, and the quality and cost of the powder directly affect the production cost of the substrate.
The powder widely used at present is large-particle powder with the particle size of less than 40 meshes basically, and the industrialized production generally adopts an improved self-propagating method to synthesize SiC, and the agglomeration phenomenon of the material blocks occurs due to the process of synthesizing the material with larger particle size, so that the material blocks are required to be crushed later. The conventional crushing is jaw crushing, pendulum crushing and drum crushing, the material blocks are generally in a pin column shape and have directivity, the pin column structure of the powder is easily damaged in the crushing process of the equipment, a large amount of fine powder with more than 40 meshes is generated, and waste is caused; in addition, the crushing process has metal pollution risk, so that the surface metal of the powder is higher, complicated pickling and water washing processes are needed, the pure water consumption and pollution discharge burden are increased, the risks of acid removal and incomplete surface metal removal exist, and the crystal growth is affected to a certain extent. Therefore, there is a need to design and study a silicon carbide synthetic material block crushing device without metal pollution, so as to overcome the defects of the prior art and meet the practical application requirements.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide the silicon carbide synthetic material block crushing device without metal pollution, in the invention, the original shape of the synthetic powder is protected by the combined arrangement of all the components, the output of large particles smaller than 40 meshes is increased, an acid washing process is not required to be used in the whole process, the discharge of waste acid and the consumption of pure water are reduced, and the high-purity silicon carbide powder meeting the growth conditions can be obtained by only using the pure water for 1-5 times; and the material block is prevented from rolling up and down, dust emission is reduced, high-power dust removal equipment is not required, and environmental pollution and cost investment are reduced.
To achieve the purpose, the invention adopts the following technical scheme:
the invention provides a metal pollution-free silicon carbide synthetic material block crushing device, which comprises a pressing plate, a screen plate, a scraping piece, a supporting piece, a collecting device and a vibrating device, wherein the top of the pressing plate is electrically connected with a driving motor, the driving motor is used for driving the pressing plate and the scraping piece to move, and the bottom edge of the pressing plate is movably connected with the edge of the screen plate through a guide shaft; the middle part of one side of the screen plate, which faces the pressing plate, is provided with a pressure-bearing table and a scraping piece, the scraping piece is used for stirring materials, one end of the screen plate, which corresponds to the pressure-bearing table, is provided with a supporting piece, and the other end of the supporting piece is fixedly connected into the top of the material collecting device; the bottom of the material collecting device is provided with the vibration device, and one side of the vibration device along the trend of the material is provided with a discharge hole.
According to the invention, through the combined arrangement of the components, the original shape of the synthetic powder is protected, the output of large particles smaller than 40 meshes is increased, an acid washing process is not required in the whole process, the waste acid emission and the pure water consumption are reduced, and the high-purity silicon carbide powder meeting the growth conditions can be obtained by only cleaning with pure water for 1-5 times; and the material block is prevented from rolling up and down, dust emission is reduced, high-power dust removal equipment is not required, and environmental pollution and cost investment are reduced.
It should be noted that, in the present invention, the shape of the supporting member is not limited in particular, and those skilled in the art can adapt to the actual situation. The shape of the supporting piece can be rectangle, square or ellipse, and the like, and the strength of supporting the screen plate can be met.
In a preferred embodiment of the present invention, the platen may have a translation distance of 50 to 150mm, for example, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 110mm, 120mm, 130mm, 140mm, 150mm, etc., but the present invention is not limited to the above-mentioned values, and other values not shown in the above-mentioned value range are equally applicable.
The translational distance of the pressing plate is limited to be 50-150 mm, because the silicon carbide block is harder, the pressure required by the crushing process is larger, the excessive stroke is easy to cause uneven stress of the pressing plate, the structure of the bearing table and the guide shaft is unstable, and the bearing is easy to damage, on the other hand, the height of the silicon carbide block is generally less than 150mm, and the silicon carbide block can be directly crushed without pretreatment in the range; if the stroke is too small, the silicon carbide material block can be placed below the pressing plate after manual pretreatment, and the risk of metal pollution is increased.
In the invention, the shape and the size of the pressing plate are not particularly limited, and can be adaptively adjusted according to practical situations by a person skilled in the art. Wherein, the shape of the pressing plate can be rectangle, square or ellipse.
In a preferred embodiment of the present invention, the minimum linear distance between the platen and the platen is 1 to 3mm, and may be, for example, 1mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2mm, 2.2mm, 2.4mm, 2.6mm, 2.8mm, 3mm, etc., but the present invention is not limited to the above-mentioned numerical values, and other numerical values not mentioned in the above numerical value range are equally applicable.
The minimum linear distance between the pressing plate and the pressure-bearing table is limited to be 1-3 mm, and the powder particle size required by crystal growth is generally 4-40 meshes, for example, the distance between the pressing plate and the pressure-bearing table is too small, a large amount of fine powder with the size of more than 40 meshes can be generated due to mutual extrusion of the material blocks, the loss is increased, and the crushing effect cannot be achieved due to too large distance.
Preferably, the bearing table is a round table.
As an optimal technical scheme of the invention, a limit clamp is arranged on one side of the guide shaft, which is close to the screen plate, and the limit clamp is used for the pressing plate to move on the guide shaft.
In the present invention, the shape and size of the screen plate are not particularly limited, and those skilled in the art can adapt to the actual situation. Wherein, the shape of the screen plate can be rectangle, square or ellipse.
In the present invention, the shape and the size of the guide shaft are not particularly limited, and those skilled in the art can adapt to the actual situation. Wherein the guide shaft may be cylindrical in shape.
The shape and the size of the limit card are not particularly limited, and can be adaptively adjusted according to practical situations by a person skilled in the art. The end part of the limit clamp can be arc-shaped or pointed.
Preferably, the guide shafts are provided with at least two, for example, 2, 4, 6, 8, etc., but not limited to the recited values, and other non-recited values within the range are equally applicable.
As a preferable technical scheme of the invention, the edge of the screen plate is provided with a baffle plate, and the baffle plate is used for preventing materials from overflowing from the periphery of the screen plate.
The shape and the size of the baffle are not particularly limited, and can be adaptively adjusted according to practical situations by a person skilled in the art. Wherein, the shape of the baffle plate can be rectangle or square, etc.
Preferably, the height of the baffle is greater than the height of the scraper.
In a preferred embodiment of the present invention, the mesh plate has a pore diameter of 3 to 5mm, and may be, for example, 3mm, 3.2mm, 3.4mm, 3.6mm, 3.8mm, 4mm, 4.2mm, 4.4mm, 4.6mm, 4.8mm, 5mm, etc., but the present invention is not limited to the above-mentioned values, and other values not mentioned in the above numerical range are equally applicable.
The invention limits the aperture of the screen plate to 3-5 mm, because the particle size meeting the requirement is fully screened in the size range, if the aperture size is too small, the material meeting the growth requirement cannot be screened out in time and is repeatedly crushed, thereby generating fine powder material exceeding the requirement range and causing waste; and the excessive pore size can appear that the material that surpasses the growth demand size sieves out, can not satisfy the size demand.
As a preferable technical scheme of the invention, the scraping piece is a scraping plate, and one end of the scraping plate is detachably connected with one end of the guide shaft, which is close to the screen plate.
In the present invention, the shape and size of the scraping plate are not particularly limited, and those skilled in the art can adjust the shape and size adaptively according to actual situations. The scraping plate can be rectangular or square, and can move circularly.
Preferably, the scraping plate is driven by the driving motor to operate circumferentially, and the scraping plate and the pressing plate are electrically linked;
when the pressing plate moves upwards and is far away from the bearing platform, the scraping plate moves circumferentially around the guide shaft, and when the pressing plate moves downwards and is close to the bearing platform, the scraping plate is close to the baffle plate and does not move circumferentially.
As a preferable technical scheme of the invention, the collecting device is a collecting basket.
The shape and the size of the top of the material collecting basket are not particularly limited, and can be adaptively adjusted according to practical situations by a person skilled in the art. Wherein, the top shape of the collecting basket can be cuboid, cylinder or square.
Preferably, the bottom of the collecting basket is funnel-shaped and is used for moving materials into the vibrating device.
As a preferable technical scheme of the invention, the vibrating device is a vibrating screen.
It should be noted that, in the present invention, the shape, size and vibration parameters of the vibrating screen are not particularly limited, and those skilled in the art can adaptively adjust according to actual situations. Wherein, the shape of the vibrating screen can be cuboid, cylinder or square.
Preferably, at least one screen is disposed in the vibrating screen, for example, 1 layer, 2 layers, 3 layers, 4 layers, 5 layers, 6 layers, 7 layers, etc., but the present invention is not limited to the recited values, and other values not recited in the range of values are equally applicable.
Preferably, the screen is provided with 1 to 5 layers, for example, 1 layer, 2 layers, 3 layers, 4 layers, 5 layers, etc., but not limited to the recited values, and other non-recited values within the range of values are equally applicable.
Preferably, the mesh numbers of the 1-5 layers of screens are different, and the screens are used for screening material particles with different sizes.
Preferably, the outlet is provided with at least one, for example, 1, 2, 3, 4, 5, 6, 7, etc., but not limited to the recited values, and other non-recited values within the range of values are equally applicable.
Preferably, the discharge hole is arranged corresponding to the layer number of the screen.
The shape, size and vibration parameters of the discharge port are not particularly limited, and can be adaptively adjusted according to practical situations by a person skilled in the art. Wherein, the shape of the discharge hole can be round or square, etc.
As a preferable technical scheme of the invention, the bottom of the pressing plate and the surface of the bearing table are both coated with a first nonmetallic layer.
Preferably, the material of the first nonmetallic layer is any one or a combination of two or more of tantalum, tantalum carbide, niobium carbide and tungsten carbide.
Preferably, the outer surfaces of the screen plate, the guide shaft, the scraping piece, the supporting piece, the aggregate device and the vibration device are all coated with a second nonmetallic layer.
Preferably, the second nonmetallic layer is made of polytetrafluoroethylene or polypropylene.
The invention ensures that no metal and harmful metal pollution exists in the whole process in the material crushing process by limiting the first non-metal layer to cover the bottom of the pressing plate and the surface of the bearing table and the second non-metal layer to cover the outer surfaces of the screen plate, the guide shaft, the scraping piece, the supporting piece, the collecting device and the vibrating device, and reduces the waste acid emission and the pure water consumption.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, through the combined arrangement of the components, the original shape of the synthetic powder is protected, the output of large particles smaller than 40 meshes is increased, an acid washing process is not required in the whole process, the waste acid emission and the pure water consumption are reduced, and the high-purity silicon carbide powder meeting the growth conditions can be obtained by only cleaning with pure water for 1-5 times; and the material block is prevented from rolling up and down, dust emission is reduced, high-power dust removal equipment is not required, and environmental pollution and cost investment are reduced.
Drawings
FIG. 1 is a schematic structural view of a silicon carbide composite material block breaking device according to an embodiment of the present invention;
wherein, 1-pressing plate; 2-a guide shaft; 3-scraping plate; 4-a pressure-bearing table; 5-a support; 6-collecting basket; 7-a discharge hole; 8-a screw shaft; 9-driving a motor; 10-screening plate; 11-a baffle; 12-vibrating screen.
Detailed Description
It is to be understood that in the description of the present invention, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
It should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
It will be appreciated by those skilled in the art that the present invention necessarily includes the necessary piping, conventional valves and general pumping equipment for achieving the process integrity, but the foregoing is not a major inventive aspect of the present invention, and that the present invention is not particularly limited thereto as the layout may be added by themselves based on the process flow and the equipment configuration options.
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
In a specific embodiment, the invention provides a silicon carbide composite material block crushing device without metal pollution, as shown in fig. 1, the silicon carbide composite material block crushing device comprises a pressing plate 1, a screen plate 10, a scraping piece, a supporting piece 5, a collecting device and a vibrating device, wherein the top of the pressing plate 1 is electrically connected with a driving motor 9, the driving motor 9 is used for driving the pressing plate 1 and the scraping piece to move, and the bottom edge of the pressing plate 1 is movably connected with the edge of the screen plate 10 through a guide shaft 2; the middle part of one side of the screen plate 10, which faces the pressing plate 1, is provided with a pressure-bearing table 4 and a scraping piece, the scraping piece is used for stirring materials, one end of the screen plate 10, which corresponds to the pressure-bearing table 4, is provided with a supporting piece 5, and the other end of the supporting piece 5 is fixedly connected into the top of the material collecting device; the vibrating device is installed to the bottom of aggregate unit, and vibrating device is provided with discharge gate 7 along one side that the material trend.
According to the invention, through the combined arrangement of the components, the original shape of the synthetic powder is protected, the output of large particles smaller than 40 meshes is increased, an acid washing process is not required in the whole process, the waste acid emission and the pure water consumption are reduced, and the high-purity silicon carbide powder meeting the growth conditions can be obtained by only cleaning with pure water for 1-5 times; and the material block is prevented from rolling up and down, dust emission is reduced, high-power dust removal equipment is not required, and environmental pollution and cost investment are reduced.
In the present invention, the shape of the supporting member 5 is not particularly limited, and those skilled in the art can adapt to the actual situation. The shape of the supporting member 5 may be rectangular, square, oval, or the like, so as to satisfy the force of supporting the screen plate 10.
The translation distance of the platen 1 is 50 to 150mm, and may be, for example, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 110mm, 120mm, 130mm, 140mm, 150mm, etc., but is not limited to the above-mentioned values, and other values not mentioned in the above-mentioned numerical range are equally applicable. In the present invention, the shape and size of the platen 1 are not particularly limited, and those skilled in the art can adapt to the actual situation. The shape of the platen 1 may be rectangular, square, oval, or the like.
The minimum linear distance between the platen 1 and the platen 4 is 1 to 3mm, and may be, for example, 1mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2mm, 2.2mm, 2.4mm, 2.6mm, 2.8mm, 3mm, etc., but is not limited to the values recited, and other values not recited in the numerical range are equally applicable. Further, the bearing table 4 is a round table.
A limiting clamp is arranged on one side of the guide shaft 2, which is close to the screen plate 10, and is used for moving the pressing plate 1 on the guide shaft 2. In the present invention, the shape and size of the screen plate 10 are not particularly limited, and those skilled in the art can adapt to the actual situation. Wherein the shape of the screen plate 10 may be rectangular, square, oval, etc. In the present invention, the shape and size of the guide shaft 2 are not particularly limited, and those skilled in the art can adapt to the actual situation. Wherein the guide shaft 2 may be cylindrical in shape. The shape and the size of the limit card are not particularly limited, and can be adaptively adjusted according to practical situations by a person skilled in the art. The end part of the limit clamp can be arc-shaped or pointed.
The guide shafts 2 are provided in at least two, for example, 2, 4, 6, 8, etc., but are not limited to the listed values, and other values not listed in the range are equally applicable.
The edges of the screen plate 10 are provided with baffles 11, the baffles 11 are used for preventing materials from overflowing from the periphery of the screen plate 10, and further, the height of the baffles 11 is larger than that of the scraping piece. In the present invention, the shape and size of the baffle 11 are not particularly limited, and those skilled in the art can adapt to the actual situation. Wherein the shape of the baffle 11 can be rectangle or square, etc.
The mesh plate 10 has a pore diameter of 3 to 5mm, and may be, for example, 3mm, 3.2mm, 3.4mm, 3.6mm, 3.8mm, 4mm, 4.2mm, 4.4mm, 4.6mm, 4.8mm, 5mm, etc., but the present invention is not limited to the above-mentioned values, and other values not mentioned in the above-mentioned numerical range are applicable.
The scraping piece is a scraping plate 3, one end of the scraping plate 3 is detachably connected to one end, close to the screen plate 10, of the guide shaft 2, and the scraping plate 3 is driven by a driving motor 9 to operate circumferentially. In the present invention, the shape and size of the squeegee 3 are not particularly limited, and those skilled in the art can adapt to the actual situation. The blade 3 may be rectangular or square, or may move in a circular manner.
It should be noted that, in the invention, the scraping plate 3 and the pressing plate 1 are in motion linkage, when the pressing plate 1 moves upwards and is far away from the bearing platform, the scraping plate 3 moves circularly to sweep the material blocks and fine powder materials on the bearing platform 4 to the screen plate 10, the particles conforming to the size leak downwards to the material collecting basket 6, and the non-conforming particles are collected and are continuously crushed by using hydraulic pressure; when the pressing plate 1 is pressed down, the scraping plate 3 can be rotated to the side far away from the bearing platform 4, so as to prevent damage.
The material collecting device is a material collecting basket 6, and further, the bottom of the material collecting basket 6 is a funnel type for moving materials into the vibration device. In the present invention, the shape and size of the top of the material collecting basket 6 are not particularly limited, and those skilled in the art can adapt to the actual situation. Wherein the top shape of the collecting basket 6 can be cuboid, cylinder or square, etc.
The vibrating means is a vibrating screen 12. In the present invention, the shape, size and vibration parameters of the vibrating screen 12 are not particularly limited, and may be adaptively adjusted according to practical situations by those skilled in the art. Wherein the shape of the vibrating screen 12 can be cuboid, cylinder, square, etc.
At least one screen is provided in the screen 12, and examples thereof include 1, 2, 3, 4, 5, 6, 7, etc., but are not limited to the values recited, and other values not recited in the range are equally applicable. The screen is provided with 1 to 5 layers, for example, 1 layer, 2 layers, 3 layers, 4 layers, 5 layers, etc., but the screen is not limited to the listed values, and other values not listed in the range of values are equally applicable. Further, the mesh numbers of the screens of 1-5 layers are different and are used for screening material particles with different sizes.
The discharge port 7 is provided with at least one, for example, 1, 2, 3, 4, 5, 6, 7, etc., but not limited to the recited values, and other non-recited values are equally applicable within the range of values. Further, the discharge hole 7 is arranged corresponding to the layer number of the screen. In the present invention, the shape, size and vibration parameters of the discharge port 7 are not particularly limited, and those skilled in the art can adaptively adjust according to practical situations. Wherein, the shape of the discharging hole 7 can be round or square, etc.
The bottom of the pressing plate 1 and the surface of the pressure-bearing table 4 are coated with a first non-metal layer, and the first non-metal layer is made of any one or a combination of two or more of tantalum, tantalum carbide, niobium carbide and tungsten carbide; the outer surfaces of the screen plate 10, the guide shaft 2, the scraping piece, the supporting piece 5, the collecting device and the vibrating device are all coated with a second nonmetallic layer, and the second nonmetallic layer is made of polytetrafluoroethylene or polypropylene. It is to be noted that the invention ensures that no metal or harmful metal pollution exists in the whole process in the material crushing process by limiting the first non-metal layer coated on the bottom of the pressing plate 1 and the surface of the pressure-bearing table 4 and the second non-metal layer coated on the outer surfaces of the screen plate 10, the guide shaft 2, the scraping piece, the supporting piece 5, the collecting device and the vibrating device, and reduces the discharge of waste acid and the use amount of pure water.
Example 1
The embodiment provides a silicon carbide synthetic material piece breaker of no metal pollution, wherein:
the silicon carbide synthetic material block crushing device comprises a pressing plate 1, a screen plate 10, a scraping piece, a supporting piece 5, a material collecting device and a vibrating device, wherein the top of the pressing plate 1 is electrically connected with a driving motor 9, the driving motor 9 and a screw shaft 8 are matched to operate and are used for driving the pressing plate 1 and the scraping piece to move, and the bottom edge of the pressing plate 1 is movably connected with the edge of the screen plate 10 through a guide shaft 2; the middle part of one side of the screen plate 10, which faces the pressing plate 1, is provided with a pressure-bearing table 4 and a scraping piece, the scraping piece is used for stirring materials, one end of the screen plate 10, which corresponds to the pressure-bearing table 4, is provided with a supporting piece 5, and the other end of the supporting piece 5 is fixedly connected into the top of the material collecting device; the vibrating device is installed to the bottom of aggregate unit, and vibrating device is provided with discharge gate 7 along one side that the material trend.
The translation distance of the pressing plate 1 is 100mm, and the shape of the pressing plate 1 is rectangular; the minimum linear distance between the pressing plate 1 and the bearing table 4 is 2mm, and the bearing table 4 is a round table. A limiting clamp is arranged on one side of the guide shaft 2, which is close to the screen plate 10, and is used for moving the pressing plate 1 on the guide shaft 2. The guide shafts 2 are provided with four.
The edge of screen plate 10 is provided with baffle 11, and baffle 11 is used for preventing the material from spilling over from screen plate 10 all around, and the height of baffle 11 is greater than the height of scraping the piece, and the aperture of screen plate 10 is 3mm. The scraping piece is a scraping plate 3, one end of the scraping plate 3 is detachably connected to one end, close to the screen plate 10, of the guide shaft 2, and the scraping plate 3 is driven by a driving motor 9 to operate circumferentially.
The material collecting device is a material collecting basket 6, and the bottom of the material collecting basket 6 is funnel-shaped and is used for moving materials into the vibration device. The vibrating means is a vibrating screen 12. Two layers of screens are arranged in the vibrating screen 12. Two discharge ports 7 are arranged.
The bottom of the pressing plate 1 and the surface of the pressure-bearing table 4 are coated with a first nonmetallic layer, and the first nonmetallic layer is made of tantalum carbide; the outer surfaces of the screen plate 10, the guide shaft 2, the scraping piece, the supporting piece 5, the collecting device and the vibrating device are all coated with second nonmetallic layers, and the second nonmetallic layers are made of polytetrafluoroethylene.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and it should be apparent to those skilled in the art that any changes or substitutions that fall within the technical scope of the present invention disclosed herein are within the scope of the present invention.
Claims (6)
1. The crushing device for the silicon carbide synthetic material blocks without metal pollution is characterized by comprising a pressing plate, a screen plate, a scraping piece, a supporting piece, a collecting device and a vibrating device, wherein the top of the pressing plate is electrically connected with a driving motor, the driving motor is used for driving the pressing plate and the scraping piece to move, and the bottom edge of the pressing plate is movably connected with the edge of the screen plate through a guide shaft;
the middle part of one side of the screen plate, which faces the pressing plate, is provided with a pressure-bearing table and a scraping piece, the scraping piece is used for stirring materials, one end of the screen plate, which corresponds to the pressure-bearing table, is provided with a supporting piece, and the other end of the supporting piece is fixedly connected into the top of the material collecting device;
the bottom of the material collecting device is provided with the vibration device, and one side of the vibration device along the trend of the material is provided with a discharge hole;
the translation distance of the pressing plate is 50-150 mm, the minimum linear distance between the pressing plate and the pressure-bearing table is 1-3 mm, and the pressure-bearing table is a round table;
the edge of the screen plate is provided with a baffle plate, the baffle plate is used for preventing materials from overflowing from the periphery of the screen plate, and the height of the baffle plate is larger than that of the scraping piece;
the scraping piece is a scraping plate, one end of the scraping plate is detachably connected to one end of the guide shaft, which is close to the screen plate, and the scraping plate is driven by the driving motor to operate circumferentially;
the scraping plate and the pressing plate are in motion linkage, when the pressing plate moves upwards and is far away from the pressure-bearing table, the scraping plate moves circularly to sweep the material blocks and the fine powder materials on the pressure-bearing table to the screen plate, and when the pressing plate is pressed downwards, the scraping plate rotates to the side far away from the pressure-bearing table to prevent the scraping plate from being damaged;
the bottom of the pressing plate and the surface of the bearing table are both coated with a first nonmetal layer, and the outer surfaces of the screen plate, the guide shaft, the scraping piece, the supporting piece, the collecting device and the vibrating device are both coated with a second nonmetal layer.
2. The silicon carbide composite material block crushing device according to claim 1, wherein a limiting clamp is arranged on one side of the guide shaft, which is close to the screen plate, and is used for limiting the moving distance of the pressing plate on the guide shaft;
the guide shafts are provided with at least two guide shafts.
3. The silicon carbide composite material block breaking device according to claim 1, wherein the mesh plate has a pore size of 3-5 mm.
4. The silicon carbide composite material block breaking device of claim 1, wherein the aggregate device is a collection basket;
the bottom of the collecting basket is funnel-shaped and is used for moving materials into the vibrating device.
5. The silicon carbide composite feedstock piece breaker of claim 1, wherein the vibratory device is a vibrating screen;
at least one layer of screen mesh is arranged in the vibrating screen;
the screen is provided with 1-5 layers;
the mesh numbers of the adjacent screens are different and are used for screening material particles with different sizes;
at least one discharge hole is formed in the material outlet;
the discharge hole is arranged corresponding to the layer number of the screen.
6. The silicon carbide composite material block crusher of claim 1, wherein the first nonmetallic layer is made of any one or a combination of two or more of tantalum, tantalum carbide, niobium carbide and tungsten carbide;
the second nonmetallic layer is made of polytetrafluoroethylene or polypropylene.
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