CN117798067A - Brown corundum granularity screening device and screening method - Google Patents
Brown corundum granularity screening device and screening method Download PDFInfo
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- CN117798067A CN117798067A CN202410193470.8A CN202410193470A CN117798067A CN 117798067 A CN117798067 A CN 117798067A CN 202410193470 A CN202410193470 A CN 202410193470A CN 117798067 A CN117798067 A CN 117798067A
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- 238000012216 screening Methods 0.000 title claims abstract description 171
- 229910052593 corundum Inorganic materials 0.000 title claims abstract description 64
- 239000010431 corundum Substances 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 176
- 239000002245 particle Substances 0.000 claims abstract description 62
- 239000004744 fabric Substances 0.000 claims abstract description 61
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000007873 sieving Methods 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims description 83
- 239000000428 dust Substances 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 10
- 230000010287 polarization Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 238000009826 distribution Methods 0.000 abstract description 9
- 235000019580 granularity Nutrition 0.000 description 95
- 239000004576 sand Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 241000237942 Conidae Species 0.000 description 2
- 206010024796 Logorrhoea Diseases 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The utility model provides a brown fused alumina granularity sieving mechanism, including feed equipment and granularity screening mechanism, feed equipment establishes in granularity screening mechanism top, granularity screening mechanism is provided with shell structure, first screen cloth structure has been set gradually from last to lower in the shell structure, second screen cloth structure and third screen cloth structure, install layering discharge mechanism on this discharge gate, layering discharge mechanism is provided with first discharge channel, second discharge channel and third discharge channel, first screen cloth structure top still is provided with half screen cloth structure, half screen cloth structure installs on shell structure, half screen cloth structure side edge portion aims at first discharge channel top, feed equipment aims half screen cloth structure, and half screen cloth structure mesh number is more than first screen cloth structure mesh number, still be provided with vibration mechanism on shell structure. The invention can adjust and screen out the required particle size distribution and content ratio of brown corundum products, save working procedures and screening cost and ensure the product quality.
Description
Technical Field
The invention relates to the technical field of granularity screening, in particular to a brown fused alumina granularity screening device and a brown fused alumina granularity screening method.
Background
Brown corundum, also called carborundum, is made up by using three raw materials of bauxite, carbon material and iron filings through the processes of melting and reduction in electric arc furnace, pulverizing and shaping by self-grinding machine, magnetically separating to remove iron, screening to obtain several granularities, and possesses the characteristics of high purity, good crystallinity, strong flowability, low expansion coefficient and resisting corrosion, etc.. Brown corundum is divided into four types of segment sand, granularity sand, micro powder and fine powder according to granularity, wherein the common granularity of the segment sand is 0-1mm, 1-3mm, 3-5mm, 5-8mm, 8-12mm and the like, and the segment sand is generally used for rough sand blasting polishing of workpieces. The method for dividing the grain size of the brown fused alumina is divided into a screening method, a sedimentation method and the like, the screening method adopts a screen (mesh) for screening at present, the number of the screen meshes on the screen is called mesh, 50 meshes means that the number of the screen meshes on each square inch is 50, 100 meshes are 100, and the larger the mesh number is, namely the smaller the grain size is. The brown corundum particle size obtained by the sieving method is generally the same as the brown corundum content of different particle sizes in the particle size range of sieving by a sieve, and is uniformly distributed, but in some cases, brown corundum products with more particle size content are required to be obtained in the same particle size range according to requirements, and are uniformly distributed, for example, the brown corundum products with 6-8mm particle size account for about 70 percent in the range of 5-8mm section sand grain size, the brown corundum products with 5-6mm particle size account for about 30 percent, and are naturally and uniformly mixed into brown corundum products with 5-8mm particle size, which is difficult to achieve at present only by sieving by the sieve, if the brown corundum products are respectively sieved in two particle size ranges, and then are mixed according to a proportion, so that not only is a plurality of procedures increased, but also the sieving cost is increased, the mixture is not easy to achieve natural uniformity, and the brown corundum breaking condition easily occurs in the large-batch mixing process, and the brown corundum particle size is changed, so that a large number of unqualified brown corundum products which are not in the 5-8mm particle size range are produced.
In the prior art, patent document with publication number of CN 108940813A discloses a brown corundum vibrating screen, the vibrating screen comprises a screen body, an inclined vibrating motor seat is fixedly arranged at the inclined position of the bottom of the screen body, a motor is arranged on the motor seat, and the motor rotates to drive brown corundum particles on the screen body to move to a discharge hole in the horizontal direction and vibrate up and down in the vertical direction. According to the scheme, the structure of the screen plate of the existing vibrating screen machine and the connection mode of the screen plates of each layer of vibrating screen machine are changed, and the structures of the screen frame head of the vibrating screen machine and the screen body of the vibrating screen machine are correspondingly changed, so that the improved vibrating screen machine can be matched with the screen plates required by multi-specification brown corundum screening, the structure interchangeability of each part of the vibrating screen machine is improved, and the problems of adjusting the particle size distribution and the content ratio of screened brown corundum products are not solved.
Disclosure of Invention
The invention provides the brown corundum particle size screening device and the brown corundum particle size screening method, which are simple in structure, convenient to refit and operate, capable of roughly adjusting the particle size distribution and the content ratio of the brown corundum product required by screening, saving the working procedure and the screening cost, improving the flexibility of the brown corundum screening and ensuring the product quality.
The specific technical scheme is as follows:
the utility model provides a brown fused alumina granularity sieving mechanism, including feeding equipment and at least one granularity sieving mechanism, feeding equipment establishes in granularity sieving mechanism top, granularity sieving mechanism is provided with the shell structure from last first screen cloth structure, second screen cloth structure and the third screen cloth structure of having set gradually down in the shell structure, just first screen cloth structure, second screen cloth structure and third screen cloth structure mesh increase in proper order the discharge gate has been seted up to the shell structure side, installs layering discharge mechanism on this discharge gate, layering discharge mechanism is provided with first discharge channel, second discharge channel and third discharge channel, first screen cloth structure, second screen cloth structure and third screen cloth structure side edge portion aim at first discharge channel, second discharge channel and third discharge channel respectively first screen cloth structure top still is provided with half screen cloth structure, half screen cloth structure installs on the shell structure, half screen cloth structure side edge portion aims at first discharge channel top, feeding equipment aims at half screen cloth structure, and half screen cloth structure still has the mesh structure to vibrate more than first screen cloth structure of mesh shell structure is in order.
As preferable: the first screen structure, the second screen structure, the third screen structure and the half section screen structure are obliquely arranged, and the lower the horizontal height of one side of the layered discharging mechanism is, the closer the layered discharging mechanism is.
As preferable: the vibration mechanism comprises a motor vibration seat and a polarization motor, wherein the polarization motor is arranged on the motor vibration seat, and the motor vibration seat is fixedly arranged on the outer wall of the shell structure.
As preferable: the bottom of the shell structure is cone-shaped, a broken powder discharging channel is arranged at the bottom of the cone-shaped bottom of the shell structure, and the third screen structure is used for filtering and removing dust and unqualified broken particles.
As preferable: the broken powder discharging channel is connected with a collecting device or dust removing equipment.
As preferable: including three granularity screening mechanism, be first order granularity screening mechanism, second order granularity screening mechanism and third order granularity screening mechanism respectively, still be provided with support body structure, support body structure top is installed through elastomeric element connection first order granularity screening mechanism, second order granularity screening mechanism and third order granularity screening mechanism are last, just layering discharge mechanism is including first order layering discharge mechanism, second order layering discharge mechanism and third order layering discharge mechanism, first order layering discharge mechanism, second order layering discharge mechanism and third order layering discharge mechanism set up the discharge gate at first order granularity screening mechanism, second order granularity screening mechanism and third order granularity screening mechanism respectively.
As preferable: the first-order granularity screening mechanism, the second-order granularity screening mechanism and the third-order granularity screening mechanism are sequentially reduced in vertical height through the support of the support frame body structure, and the height difference is at least the vertical height of the shell body structure;
the first discharging channels corresponding to the first-order granularity screening mechanisms are communicated with the return crusher to crush, the corresponding second discharging channels are connected with the first-order granularity collecting device, and the corresponding third discharging channels are conveyed to the second-order granularity screening mechanisms through conveying pipelines;
the first discharging channel and the second discharging channel corresponding to the second-order granularity screening mechanism are connected with a second-order granularity collecting device, and the corresponding third discharging channel is conveyed to the third-order granularity screening mechanism;
the first discharging channel and the second discharging channel corresponding to the third-order granularity screening mechanism are connected with a third-order granularity collecting device, and the corresponding third discharging channel is connected with a tailing collecting device.
As preferable: the vertical heights of the first-order granularity screening mechanism and the third-order granularity screening mechanism are lower than those of the second-order granularity screening mechanism;
the second discharging channel corresponding to the second-order particle size screening mechanism is connected with a second-order particle size collecting device, and the corresponding first discharging channel and third discharging channel are respectively conveyed to the first-order particle size screening mechanism and the third-order particle size screening mechanism through conveying pipelines;
the first discharging channel and the second discharging channel corresponding to the first-order granularity screening mechanism are connected with a first-order granularity collecting device, and the corresponding third discharging channel is connected with a tailing collecting device;
the first discharging channel and the second discharging channel corresponding to the third-order granularity screening mechanism are connected with a third-order granularity collecting device, and the corresponding third discharging channel is connected with a tailing collecting device.
As preferable: the area of the half-section screen structure is 10-90% of that of the first screen structure, and at least 10% of the caliber of the discharge opening of the feeding equipment is aligned to the half-section screen structure.
The brown corundum particle size screening method is characterized in that the half screen structure is adopted, partial brown corundum entering the screening process is screened in advance, brown corundum with a larger required particle size range is left by the partial pre-screened brown corundum, the brown corundum enters the next screening process, and the brown corundum with a smaller required particle size range in the partial pre-screened brown corundum is removed.
The beneficial effects of the invention are as follows: when the grain size distribution and the content proportion of the brown corundum product need to be controlled, a half-section screen structure is adopted, the part with smaller content of the brown corundum entering the screening can be removed in advance through the half-section screen structure, and then the brown corundum product with different grain size distribution and content proportion can be obtained through vibration filtration in a grain size screening mechanism; and then the areas above the first screen structures are different through adjusting and installing the half screen structures 205 with different areas, so that flexible control of the grain size distribution and the content ratio of the brown alumina products can be completed, the flexibility of brown alumina screening is improved, and the working procedures and the screening cost are further saved.
The brown corundum products in different particle size ranges can be screened, the screening can be continuously carried out, and the working procedure and the screening cost are saved; the device is also provided with a broken powder discharging channel connected with a collecting device or dust removing equipment, dust and partial fragments on brown corundum can be shaken off all the time in the process of vibrating and sieving the brown corundum granularity by each granularity sieving mechanism, and the dust and the partial fragments are sieved out through a third screen structure for centralized treatment every time, so that the device can be reused, the utilization rate is improved, and the quality of subsequent brown corundum products is ensured.
Drawings
FIG. 1 is a schematic view of the first combination of the whole structure of the present invention.
FIG. 2 is a schematic diagram of the second combination of the whole structure of the present invention.
Fig. 3 is a schematic structural diagram of the cooperation of the particle size screening mechanism and the layered discharging mechanism in the invention.
Fig. 4 is a schematic structural diagram of the cooperation of the layered discharging mechanism in the invention.
Reference numerals illustrate: a feeding device 1; a particle size screening mechanism 2; a layered discharging mechanism 3; a vibration mechanism 4; a crushed powder discharging channel 5; a support frame body structure 6; a first-order particle size collection device 7; a second order particle size collection device 8; a third-order particle size collection device 9; a tail collection device 10;
a first-order particle size screening mechanism 21; a second order particle size screening mechanism 22; a third-order particle size screening mechanism 23;
a housing structure 201; a first screen structure 202; a second screen structure 203; a third screen structure 204; a half screen structure 205;
a first-order layered discharging mechanism 31; a second-order layered discharging mechanism 32; a third-order layered discharging mechanism 33;
a first discharge channel 301; a second discharge channel 302; a third outlet channel 303;
a motor vibration seat 41; a polarizing motor 42.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not 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" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "plurality" means two or more, unless specifically defined otherwise; in addition, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," "coupled," and "connected" should be construed broadly.
Examples:
as shown in fig. 1, 2, 3 and 4: the utility model provides a brown fused alumina granularity screening device, be provided with feed arrangement 1 and three granularity screening mechanism 2, be first order granularity screening mechanism 21 respectively, second order granularity screening mechanism 22 and third order granularity screening mechanism 23, still be provided with support body structure 6, support body structure 6 top is installed on first order granularity screening mechanism 21 through elastic component connection, second order granularity screening mechanism 22 and third order granularity screening mechanism 23, support body structure 6 is used for supporting the first order granularity screening mechanism 21 respectively, second order granularity screening mechanism 22 and third order granularity screening mechanism 23 to install different heights, first order granularity screening mechanism 21 respectively, second order granularity screening mechanism 22 and third order granularity screening mechanism 23 screen the brown fused alumina product of different granularity scope respectively, screen in succession, process and screening cost have been saved.
The feeding device 1 is arranged above one of the particle size screening mechanisms 2, or only one particle size screening mechanism 2 is arranged, or one particle size screening mechanism 2 or more particle size screening mechanisms 2 are arranged, and all the particle size screening mechanisms 2 are almost identical in structure, namely, the first-order particle size screening mechanism 21, the second-order particle size screening mechanism 21 and the third-order particle size screening mechanism 21 are identical in structure, and the feeding device is as follows:
the above-mentioned granularity screening mechanism 2 is provided with shell structure 201, from top to bottom has set gradually first screen cloth structure 202, second screen cloth structure 203 and third screen cloth structure 204 in shell structure 201, and first screen cloth structure 202, second screen cloth structure 203 and third screen cloth structure 204 mesh increase in proper order, the discharge gate has been seted up to shell structure 201 side, install layering discharge mechanism 3 on this discharge gate, layering discharge mechanism 3 is including first order layering discharge mechanism 31, second order layering discharge mechanism 32 and third order layering discharge mechanism 33 promptly, first order layering discharge mechanism 31, second order layering discharge mechanism 32 and third order layering discharge mechanism 33 set up the discharge gate at first order granularity screening mechanism 21, second order granularity screening mechanism 22 and third order granularity screening mechanism 23 respectively, and every layering discharge mechanism 3 structure is similar, and as follows:
as shown in fig. 3 and 4, the layered discharging mechanism 3 is provided with a first discharging channel 301, a second discharging channel 302 and a third discharging channel 303, the side edge portions of the first screen structure 202, the second screen structure 203 and the third screen structure 204 are aligned with the first discharging channel 301, the second discharging channel 302 and the third discharging channel 303, respectively, and the outlet orientations of the first discharging channel 301, the second discharging channel 302 and the third discharging channel 303 are adjusted according to the use environment, that is, adaptive changes are made in the manufacturing process. The first screen structure 202, the second screen structure 203, the third screen structure 204 and the half-section screen structure 205 are obliquely arranged, and the lower the horizontal height of one side of the layered discharging mechanism 3 is, the lower the horizontal height is, so that the screen structure slides into the layered discharging mechanism 3 in the vibration process.
The half-section screen structure 205 is further arranged above the first screen structure 202, the half-section screen structure 205 is arranged on the shell structure 201, the side edge part of the half-section screen structure 205 is aligned above the first discharging channel 301, the feeding device 1 is aligned with the half-section screen structure 205, the mesh number of the half-section screen structure 205 is more than that of the first screen structure 202, the half-section screen structure 205 is not required to be arranged for each granularity screening mechanism 2, only the half-section screen structure 205 is adopted when the granularity distribution and the content ratio of brown corundum products need to be controlled, the part with less content of the brown corundum entering the screening can be removed in advance through the half-section screen structure 205, and then the brown corundum products with different granularity distribution and content ratio can be obtained through vibration filtration in the granularity screening mechanism 2.
The area of the half-section screen structure 205 is 10% to 90% of the area of the first screen structure 202, at least 10% of the caliber of the discharge opening of the feeding device 1 is aligned to the half-section screen structure 205, the areas above the first screen structure 202 are different by adjusting and installing the half-section screen structures 205 with different areas, and flexible control of the granularity distribution and the content ratio of brown corundum products can be completed, the flexibility of brown corundum screening is improved, and the working procedures and screening cost are further saved.
And be equipped with bayonet structure on shell structure 201 inner wall, half screen cloth structure 205 comprises screen cloth and installing frame, installing frame one side demountable installation is in bayonet structure, be convenient for change half screen cloth structure 205 of different areas, first screen cloth structure 202, second screen cloth structure 203 and third screen cloth structure 204 are similar, only the mesh number of screen cloth is different, perhaps dismantle when need not adopt half screen cloth structure 205 and take away, and same reason demountable installation has the support bar on shell structure 201, the support bar is established in the installing frame opposite side bottom of half screen cloth structure 205, be favorable to improving half screen cloth structure 205's bearing capacity.
The feeding device 1 can be directly conveyed to the position above one of the particle size screening mechanisms 2 from the crusher through an inclined platform, and can also be provided with a conveying pipeline for conveying feeding in cooperation with an auger structure, wherein the auger structure is rotatably arranged in the conveying pipeline.
The shell structure 201 is further provided with a vibration mechanism 4, the vibration mechanism 4 comprises a motor vibration seat 41 and a polarization motor 42, the polarization motor 42 is arranged on the motor vibration seat 41, and the motor vibration seat 41 is fixedly arranged on the outer wall of the shell structure 201.
The shell structure 201 bottom is cone shell form, and be provided with garrulous powder discharge channel 5 in shell form bottom of shell structure 201 bottom cone shell form bottom, third screen cloth structure 204 is used for filtering and gets rid of dust and unqualified broken grain, so garrulous powder discharge channel 5 is connected with collection device or dust collecting equipment, at each granularity screening mechanism 2 vibration screening brown corundum granularity's in-process, can shake dust and local piece on the brown corundum always, go out centralized processing through third screen cloth structure 204 screening at every turn with these dust and local piece, can also reuse, the improvement utilization ratio, and guaranteed the quality of follow-up brown corundum product.
Further, as shown in fig. 1, the first-order particle size screening mechanism 21, the second-order particle size screening mechanism 22, and the third-order particle size screening mechanism 23 are sequentially lowered by the supporting vertical height of the supporting frame body structure 6, and the height difference is at least the vertical height of the housing structure 201;
the first discharging channel 301 corresponding to the first-order granularity screening mechanism 21 is communicated with the return crusher for crushing and then returns to screening, the corresponding second discharging channel 302 is connected with the first-order granularity collecting device 7, and the corresponding third discharging channel 303 is conveyed to the second-order granularity screening mechanism 22 through a conveying pipeline and can also be directly conveyed to the second-order granularity screening mechanism 22;
the first discharging channel 301 and the second discharging channel 302 corresponding to the second-order granularity screening mechanism 22 are connected with a second-order granularity collecting device 8, and the corresponding third discharging channel 303 is conveyed to the third-order granularity screening mechanism 23;
the first discharging channel 301 and the second discharging channel 302 corresponding to the third-order granularity screening mechanism 23 are connected with the third-order granularity collecting device 9, the corresponding third discharging channel 303 is connected with the tailing collecting device 10, which is a mode of screening brown corundum products in sequence from a large range to a small range, wherein the brown corundum products collected by the first-order granularity collecting device 7 have the largest granularity range, the brown corundum products collected by the second-order granularity collecting device 8 are the brown corundum products, and finally the third-order granularity collecting device 9 brown corundum products can be sequentially extended in a reasonable prevention state, and only the granularity screening mechanism 2 and the layered discharging mechanism 3 are required to be additionally arranged.
Further, as shown in fig. 2, the vertical heights of the above-mentioned first-order particle size screening mechanism 21 and third-order particle size screening mechanism 23 are each lower than the vertical height of the second-order particle size screening mechanism 22;
the second discharging channel 302 corresponding to the second-order particle size screening mechanism 22 is connected with the second-order particle size collecting device 8, and the corresponding first discharging channel 301 and third discharging channel 303 are respectively conveyed to the first-order particle size screening mechanism 21 and the third-order particle size screening mechanism 23 through conveying pipelines, and can also be directly conveyed to the first-order particle size screening mechanism 21 and the third-order particle size screening mechanism 23 in the same way;
the first discharging channel 301 and the second discharging channel 302 corresponding to the first-order granularity screening mechanism 21 are connected with a first-order granularity collecting device 7, and the corresponding third discharging channel 303 is connected with a tailing collecting device 10;
the first discharging channel 301 and the second discharging channel 302 corresponding to the third-order granularity screening mechanism 23 are connected with the third-order granularity collecting device 9, the corresponding third discharging channel 303 is connected with the tailing collecting device 10, the method is used when no unqualified brown corundum products are determined after screening, the brown corundum products in the middle granularity range are screened, the brown corundum products in the large granularity range and the brown corundum products in the small granularity range are screened respectively by adopting a dichotomy, the brown corundum products in the large granularity range are obtained by adopting the same method, the granularity range of the brown corundum products collected by the first-order granularity collecting device 7 is the largest, the brown corundum products collected by the second-order granularity collecting device 8 are finally the brown corundum products of the third-order granularity collecting device 9, the dichotomy screening can be continued in a reasonable prevention state, the screening efficiency is higher, but the excessive quantity of the granularity screening mechanism 2 is connected with a complex transmission relation.
The half screen structure 205 is adopted to pre-screen part of brown corundum entering a screening process, the part of brown corundum which is pre-screened leaves brown corundum with a required particle size range accounting for a large proportion, enters the next screening process, and brown corundum with a required particle size range accounting for a small proportion in the part of brown corundum which is pre-screened is removed.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. Brown fused alumina granularity sieving mechanism, its characterized in that: including feed equipment (1) and at least one granularity screening mechanism (2), feed equipment (1) is established in granularity screening mechanism (2) top, granularity screening mechanism (2) are provided with shell structure (201) is interior from last to having set gradually first screen cloth structure (202), second screen cloth structure (203) and third screen cloth structure (204) down, just first screen cloth structure (202), second screen cloth structure (203) and third screen cloth structure (204) mesh increase in proper order shell structure (201) side has seted up the discharge gate, installs layering discharge mechanism (3) on this discharge gate, layering discharge mechanism (3) are provided with first screen cloth structure (301), second screen cloth structure (302) and third screen cloth structure (303), first screen cloth structure (202), second screen cloth structure (203) and third screen cloth structure (204) side edge portion aim at first screen cloth channel (301), second screen cloth structure (302) and third screen cloth structure (303) respectively, first screen cloth structure (205) side edge portion (205) are still set up in shell structure (301) side half screen cloth structure (205), the feeding device (1) is aligned with the half-section screen structure (205), the mesh number of the half-section screen structure (205) is larger than that of the first screen structure (202), and the shell structure (201) is further provided with a vibrating mechanism (4).
2. The brown fused alumina grain size screening device according to claim 1, wherein: the first screen structure (202), the second screen structure (203), the third screen structure (204) and the half-section screen structure (205) are obliquely arranged, and the lower the horizontal height of one side of the layered discharging mechanism (3) is, the lower the horizontal height is.
3. The brown fused alumina grain size screening device according to claim 1, wherein: the vibration mechanism (4) comprises a motor vibration seat (41) and a polarization motor (42), wherein the polarization motor (42) is arranged on the motor vibration seat (41), and the motor vibration seat (41) is fixedly arranged on the outer wall of the shell structure (201).
4. A brown fused alumina particle size screening apparatus according to any one of claims 1 to 3, wherein: the bottom of the shell structure (201) is cone-shaped, a broken powder discharging channel (5) is arranged at the cone-shaped bottom end of the bottom of the shell structure (201), and the third screen structure (204) is used for filtering and removing dust and unqualified broken particles.
5. The brown fused alumina grain size screening device according to claim 4, wherein: the broken powder discharging channel (5) is connected with a collecting device or dust removing equipment.
6. A brown fused alumina particle size screening apparatus according to any one of claims 1 to 3 or 5, wherein: including three granularity screening mechanism (2), be first order granularity screening mechanism (21), second order granularity screening mechanism (22) and third order granularity screening mechanism (23) respectively, still be provided with support body structure (6), support body structure (6) top is installed through elastomeric element connection on first order granularity screening mechanism (21), second order granularity screening mechanism (22) and third order granularity screening mechanism (23), just layering discharge mechanism (3) are including first order layering discharge mechanism (31), second order layering discharge mechanism (32) and third order layering discharge mechanism (33), first order layering discharge mechanism (31), second order layering discharge mechanism (32) and third order layering discharge mechanism (33) set up the discharge gate in first order granularity screening mechanism (21), second order granularity screening mechanism (22) and third order granularity screening mechanism (23) respectively. The support frame body structure (6) is used for supporting and installing the first-order granularity screening mechanism (21), the second-order granularity screening mechanism (22) and the third-order granularity screening mechanism (23) to different heights respectively.
7. The brown fused alumina grain size screening device according to claim 6, wherein: the first-order granularity screening mechanism (21), the second-order granularity screening mechanism (22) and the third-order granularity screening mechanism (23) are sequentially reduced in vertical height through the support of the support frame body structure (6), and the height difference is at least the vertical height of the shell body structure (201);
the first discharging channel (301) corresponding to the first-order granularity screening mechanism (21) is communicated with the return crusher for crushing, the second discharging channel (302) corresponding to the first-order granularity screening mechanism is connected with the first-order granularity collecting device (7), and the third discharging channel (303) corresponding to the second-order granularity screening mechanism (22);
the first discharging channel (301) and the second discharging channel (302) corresponding to the second-order granularity screening mechanism (22) are connected with a second-order granularity collecting device (8), and the corresponding third discharging channel (303) is conveyed to the third-order granularity screening mechanism (23);
the first discharging channel (301) and the second discharging channel (302) corresponding to the third-order granularity screening mechanism (23) are connected with a third-order granularity collecting device (9), and the corresponding third discharging channel (303) is connected with a tail collecting device (10).
8. The brown fused alumina grain size screening device according to claim 6, wherein: the vertical heights of the first-order granularity screening mechanism (21) and the third-order granularity screening mechanism (23) are lower than the vertical height of the second-order granularity screening mechanism (22);
the second discharging channel (302) corresponding to the second-order granularity screening mechanism (22) is connected with a second-order granularity collecting device (8), and the corresponding first discharging channel (301) and third discharging channel (303) are respectively conveyed to the first-order granularity screening mechanism (21) and the third-order granularity screening mechanism (23) through conveying;
the first-order granularity screening mechanism (21) is characterized in that a first discharging channel (301) and a second discharging channel (302) corresponding to the first-order granularity screening mechanism (21) are connected with a first-order granularity collecting device (7), and a third discharging channel (303) corresponding to the first-order granularity screening mechanism is connected with a tailing collecting device (10);
the first discharging channel (301) and the second discharging channel (302) corresponding to the third-order granularity screening mechanism (23) are connected with a third-order granularity collecting device (9), and the corresponding third discharging channel (303) is connected with a tail collecting device (10).
9. A brown fused alumina grain size screening apparatus according to any one of claims 1, 7 or 8, wherein: the area of the half-section screen structure (205) is 10-90% of that of the first screen structure (202), and at least 10% of the caliber of the discharge opening of the feeding device (1) is aligned with the half-section screen structure (205).
10. A brown corundum granularity screening method is characterized by comprising the following steps of: the half screen structure (205) of claim 1 is used to pre-screen a portion of brown fused alumina that has entered the screening process, the portion of pre-screened brown fused alumina leaving a relatively large portion of the desired particle size range to enter the next screening process, and to remove a relatively small portion of the desired particle size range from the portion of pre-screened brown fused alumina.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410193470.8A CN117798067A (en) | 2024-02-21 | 2024-02-21 | Brown corundum granularity screening device and screening method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410193470.8A CN117798067A (en) | 2024-02-21 | 2024-02-21 | Brown corundum granularity screening device and screening method |
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| CN117798067A true CN117798067A (en) | 2024-04-02 |
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| CN202410193470.8A Pending CN117798067A (en) | 2024-02-21 | 2024-02-21 | Brown corundum granularity screening device and screening method |
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| Country | Link |
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| CN (1) | CN117798067A (en) |
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