CN116752399A - Mixing station aggregate bin for preventing grading segregation and segregation device - Google Patents
Mixing station aggregate bin for preventing grading segregation and segregation device Download PDFInfo
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- CN116752399A CN116752399A CN202310699840.0A CN202310699840A CN116752399A CN 116752399 A CN116752399 A CN 116752399A CN 202310699840 A CN202310699840 A CN 202310699840A CN 116752399 A CN116752399 A CN 116752399A
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- 238000005204 segregation Methods 0.000 title claims abstract description 66
- 230000003405 preventing effect Effects 0.000 title claims abstract description 31
- 238000002156 mixing Methods 0.000 title claims abstract description 23
- 238000003860 storage Methods 0.000 claims abstract description 103
- 238000003756 stirring Methods 0.000 claims abstract description 67
- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 230000008093 supporting effect Effects 0.000 claims description 72
- 238000005096 rolling process Methods 0.000 claims description 62
- 238000007789 sealing Methods 0.000 claims description 29
- 238000005452 bending Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 32
- 230000008569 process Effects 0.000 abstract description 30
- 230000000694 effects Effects 0.000 abstract description 8
- 230000002265 prevention Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 18
- 239000000203 mixture Substances 0.000 description 9
- 239000010426 asphalt Substances 0.000 description 8
- 239000004575 stone Substances 0.000 description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000011232 storage material Substances 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
- E01C19/1027—Mixing in a rotary receptacle
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
- E01C19/104—Mixing by means of movable members in a non-rotating mixing enclosure, e.g. stirrers
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention discloses a mixing station aggregate bin and a segregation device for preventing grading segregation, wherein the mixing station aggregate bin comprises at least one aggregate cylinder structure, the aggregate cylinder structure comprises a vertical support frame, an upper storage cylinder and a lower rotary cylinder, the outer walls of the upper storage cylinder and the lower rotary cylinder are connected to the vertical support frame, the upper storage cylinder and the lower rotary cylinder are positioned on the same vertical axis, the lower port of the upper storage cylinder is in relative rotary contact with the upper port of the lower rotary cylinder, a feeding port is arranged at the top end of the upper storage cylinder, the feeding port is in an asymmetric center shape, a stirring mechanism is arranged in the upper storage cylinder, and rotary driving mechanisms are respectively arranged on the outer walls of the lower rotary cylinder. The mixing station aggregate bin can solve the problem that aggregates are stirred and vibrated in the process of storing and discharging, so that segregation and arching prevention phenomena are achieved, a good segregation prevention effect is achieved, and the influence on the quality of the aggregates in the process of storing and discharging is reduced.
Description
Technical Field
The invention relates to the technical field of concrete material mixing stations, in particular to a mixing station aggregate bin for preventing grading segregation and a segregation device.
Background
The asphalt pavement has the advantages of low noise, fast traffic, easy maintenance and the like, and in practice, the coarse and fine asphalt mixture and the graded broken stone mixture are separated due to uneven distribution of the coarse and fine asphalt mixture and the graded broken stone mixture, which are often caused by improper operation in the production, stacking, transportation, loading, unloading, paving and rolling processes. The mixture in the concentrated areas of various coarse aggregates has larger void ratio, lower asphalt content, large construction depth and strong water permeability, and is easy to generate water damage to cause diseases such as loosening, falling, pits, cracks and the like; the void ratio of the mixture in the fine aggregate concentration area is smaller, the asphalt content is higher, and rutting and hugging diseases are easy to occur. Research shows that the segregation of the mixture can raise the original cost of asphalt pavement and seriously affect the service life of asphalt pavement. In a word, the aggregate is used as the main component of the asphalt mixture, the segregation causes are numerous, the reasons of the mixture itself are also the reasons of the equipment structure, the construction technology and the like, the storage mode of the mixing station mainly comprises storage in a material shed and storage in a material bin, when the storage in the material shed is adopted, the material pile is sensitive to large-particle aggregate, and coarse particles are easy to roll to the outer side of the material pile to gather under the action of gravity and friction force to generate segregation; the segregation problem caused by stacking aggregate can be well avoided when the aggregate bin is used for storage, but funnel flow is easy to form when the bin is used for discharging, and a flowing region retention region and a wall sticking region are easy to form at the upper part, the middle part and the lower part of the inner wall of the bin, as shown in figure 1, so that the phenomena of arching of a discharge opening and segregation in discharging are caused. In order to solve the above problems, it is necessary to develop a mixing station aggregate bin which prevents gradation segregation.
Disclosure of Invention
The invention aims to provide a mixing station aggregate bin and a segregation device for preventing grading segregation, and the mixing station aggregate bin can be used for solving the problem that aggregates are stirred in the storage and blanking processes, so that segregation and arching prevention phenomena are realized, a good segregation prevention effect is realized, and the influence on the quality of the aggregates in the storage and blanking processes is reduced. In order to achieve the above purpose, the present invention adopts the following technical effects:
according to one aspect of the present invention, there is provided a grading segregation preventing device comprising a cylindrical structure having at least one segregation preventing function, the cylindrical structure being vertically fixed to a vertical support frame, the cylindrical structure comprising a vertical support frame, an upper storage cylinder and a lower rotating cylinder, outer walls of the upper storage cylinder and the lower rotating cylinder being connected to the vertical support frame, the upper storage cylinder and the lower rotating cylinder being located on the same vertical axis, a lower port of the upper storage cylinder being in relative rotational contact with an upper port of the lower rotating cylinder, a feed inlet being provided at a top end of the upper storage cylinder, a stirring mechanism being provided in the upper storage cylinder, and rotational driving mechanisms being provided on outer walls of the lower rotating cylinder, respectively.
The scheme is further preferable, the lower rotary cylinder comprises a cylinder body and an inverted cone-shaped cone cylinder, the rotary driving mechanism comprises a driving motor and a driving gear, an upper port of the cylinder body and a lower port of the upper storage cylinder are in clearance rotation arrangement, the lower port of the cylinder body is integrally connected with a large-end inlet of the inverted cone-shaped cone cylinder, the upper end of the stirring mechanism is fixed at the top end of the upper storage cylinder, the lower end of the stirring mechanism extends downwards along the central axis of the upper storage cylinder to be close to a small port of the inverted cone-shaped cone cylinder, a gear ring is arranged on the outer wall of the lower end of the cylinder body, the gear ring is meshed with a driving gear arranged on an output shaft of the driving motor, one or more rings of upper supporting rings with different heights are arranged on the outer wall of the inverted cone-shaped cone cylinder, a lower supporting ring fixed on a vertical supporting frame is arranged below the upper supporting ring corresponding to each ring, a clearance is reserved between an inner ring of the lower supporting ring and the outer wall of the inverted cone-shaped cone cylinder, and the upper supporting ring is in rolling contact with the lower supporting ring.
The above scheme is further preferable that a rolling contact structure is arranged between the upper support ring and the lower support ring, the rolling contact structure comprises an annular rolling support frame fixed on the outer wall of the inverted cone-shaped cone cylinder and a rolling device which is vertically arranged on the annular rolling support frame in a penetrating mode, the outer wall of the top end of the rolling device is in rolling contact with the lower annular surface of the upper support ring, and the outer wall of the lower end of the rolling device is in rolling contact with the upper annular surface of the lower support ring.
The scheme is further preferable that an annular positioning guide groove is formed in the lower surface of the upper supporting ring and close to the outer wall of the inverted conical cone, a positioning ring is arranged on the outer wall of the inverted conical cone and located on the upper side of the inner ring of the annular rolling supporting frame, a positioning protruding block protruding upwards and matched with the annular positioning guide groove is arranged on the upper side of the outer ring of the positioning ring, and the positioning protruding block of the positioning ring extends into the annular positioning guide groove.
In the above scheme, it is further preferable that a buffer support spring is disposed on the outer side of the annular rolling support frame and on the upper side of the outer ring of the lower support ring, the lower end of the buffer support spring is fixed on the lower support ring, a ball is disposed on the top end of the buffer support spring, and an annular buffer support groove for accommodating the ball is disposed right above the ball and on the lower side of the outer ring of the upper support ring.
In the above aspect, it is further preferable that the lower annular surface of the upper support ring is provided with an upper annular support piece for supporting the topmost end of the rolling device, and the upper annular surface of the lower support ring is provided with a lower annular support piece for supporting the bottommost end of the rolling device.
Above-mentioned scheme is further preferred, is provided with annular groove at the lower port lateral wall of last storage cylinder, the last port of cylinder be connected with the sealing ring of annular groove matching engagement, be provided with the spacing kink that buckles inwards and stretch into the inside matching of annular groove at the last port of sealing ring, this spacing kink is clearance fit with the annular groove inside, is filled with submerging spacing kink edge and mobilizable sealing medium in annular groove.
The above scheme is further preferable, is provided with the flexible absorption part that is used for absorbing sealing medium in keeping away from the notch edge of last storage cylinder outer wall one side annular groove, wherein, sealing medium is water, aggregate granule or aggregate powder, flexible absorption part is protruding and all contact with the inside wall of the spacing kink of sealing ring when stretching out to the edge outside along the notch of annular groove upwards.
Above-mentioned scheme is further preferred, rabbling mechanism includes agitator motor and (mixing) shaft, and the upper end of this (mixing) shaft wears to be connected with agitator motor along the vertical upward of top of last storage section of thick bamboo, and the lower extreme of this (mixing) shaft is vertical to be prolonged downwards and is close to the tip export of the conical section of thick bamboo bottom of falling, is provided with the puddler of downward sloping on the (mixing) shaft that is located in the last storage section of thick bamboo, is provided with the ejection of compact spiral that is close to the tip export of conical section of thick bamboo of falling at the lower extreme outer wall of (mixing) shaft.
According to another aspect of the invention, there is provided a mixing station aggregate bin for preventing grading segregation, the mixing station aggregate bin comprising at least one aggregate storage mechanism, the aggregate storage mechanism comprising a segregation device vertically fixed on a vertical support frame, the segregation device comprising an upper storage cylinder and a lower rotary cylinder, the outer walls of the upper storage cylinder and the lower rotary cylinder being connected to the vertical support frame, the upper storage cylinder and the lower rotary cylinder being located on the same vertical axis, the lower port of the upper storage cylinder and the upper port of the lower rotary cylinder being in relative rotational contact, a feed port being provided at the top end of the upper storage cylinder, a stirring mechanism being provided in the upper storage cylinder, a rotational driving mechanism being provided at the upper end in the outer wall of the lower rotary cylinder, and a vibration mechanism being provided at the lower end in the outer wall of the lower rotary cylinder.
In summary, the invention adopts the technical scheme, and has the following technical effects: the mixing station aggregate bin can solve the problems of segregation and arching of aggregate in the storage and feeding processes; the falling aggregates are scattered and distributed in the structure of the aggregate cylinder through the stirring mechanism, so that the aggregates are prevented from being isolated in the falling process, and after the aggregates are stored in the lower rotary cylinder, the lower rotary cylinder drives the aggregates in the lower rotary cylinder to centrifugally rotate in the rotating process, so that the aggregates are prevented from being isolated in the lower rotary cylinder; under the combined action of the vibration mechanism and the discharging screw, the phenomenon of arching and blocking of aggregate at the outlet of the lower rotary drum can be prevented, and therefore a good anti-segregation effect is achieved.
Drawings
FIG. 1 is a schematic diagram of the structure of a prior art silo in which segregation occurs;
FIG. 2 is a schematic diagram of a configuration of a gradation segregation preventing apparatus according to the present invention;
FIG. 3 is a schematic view of the structure of the rotary drum of the present invention;
FIG. 4 is a schematic view of the rotary drive structure of the rotary drum of the present invention;
FIG. 5 is a schematic view of the bottom surface structure of the mounting base body of the present invention;
FIG. 6 is an overall schematic of the rolling contact structure of the rotary drum of the present invention;
FIG. 7 is a schematic closure view of a rotary drum closure ring of the present invention;
FIG. 8 is a schematic view of the annular groove structure of the upper cartridge of the present invention;
FIG. 9 is a schematic view of the structure of the stirring rod of the present invention;
in the drawing, a vertical support frame 1, an upper material storage cylinder 2, a lower rotary cylinder 3, a material inlet 4, a stirring mechanism 5, a rotation driving mechanism 6, a vibration mechanism 7, an annular groove 20, a flexible absorbing member 21, a communicating pipe 22, a cylinder 30, a back taper cone 31, a gear ring 32, an upper support ring 33, a lower support ring 34, a gap 35, a rolling contact structure 36, a stirring motor 51, a stirring shaft 52, a stirring rod 53, a discharge screw 54, stirring wings 55, a reinforcing connecting rod 56, stirring struts 57, a driving motor 60, a driving gear 61, a vibration motor 70, a spring assembly 71, a support plate 72, a sealing ring 300, a limit bending part 301, a small end outlet 310, an upper annular support piece 330, a lower annular support piece 340, an annular rolling support frame 360, a rolling device 361, an annular positioning guide groove 362, a positioning ring 363, a positioning boss 364, a buffer support spring 365, balls 366, an annular buffer support groove 367.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below by referring to the accompanying drawings and by illustrating preferred embodiments. It should be noted, however, that many of the details set forth in the description are merely provided to provide a thorough understanding of one or more aspects of the invention, and that these aspects of the invention may be practiced without these specific details.
Embodiment 1, referring to fig. 2, a grading segregation preventing device according to the present invention includes a cylindrical structure having at least one segregation preventing structure, the cylindrical structure being vertically fixed to a vertical support frame 1, the cylindrical structure including an upper storage cylinder 2 and a lower rotating cylinder 3, outer walls of the upper storage cylinder 2 and the lower rotating cylinder 3 being connected to the vertical support frame 1, the upper storage cylinder 2 and the lower rotating cylinder 3 being located on the same vertical axis, a lower port of the upper storage cylinder 2 and an upper port of the lower rotating cylinder 3 being in relative rotational contact, a feed port 4 being provided at a top end of the upper storage cylinder 2, the feed port 4 being of a non-centrosymmetric shape, a stirring mechanism 5 being provided in the upper storage cylinder 2, a rotational driving mechanism 6 and a vibration mechanism 7 being provided at outer walls of the lower rotating cylinder 3, respectively; aggregate is fed into the upper storage cylinder 2 from the feed inlet 4 and falls into the lower rotary cylinder 3, then the aggregate is gradually piled up in the lower rotary cylinder 3 and the upper storage cylinder 2, the aggregate is fed into the upper storage cylinder 2 from the feed inlet 4, the aggregate falls into the rotary cylinder 3, and the rotary cylinder 3 performs circumferential rotation in the falling process and prevents and avoids segregation of the aggregate through vibration.
Referring to fig. 2, 3 and 4, the lower rotary drum 3 includes a cylindrical body 30 and an inverted conical cone 31, the rotary driving mechanism 6 includes a driving motor 60 and a driving gear 61, an upper port of the cylindrical body 30 is rotatably disposed at a gap with a lower port of the upper storage drum 2, the lower port of the cylindrical body 30 is integrally connected with a large-end inlet of the inverted conical cone 31, an upper end of the stirring mechanism 5 is fixed at a top end of the upper storage drum 2, a lower end of the stirring mechanism 5 extends downwards along a central axis of the upper storage drum 2 to approach a small port of the inverted conical cone 31, a gear ring 32 is disposed at an outer wall of a lower end of the cylindrical body 30, the gear ring 32 is meshed with the driving gear 61 disposed on an output shaft of the driving motor 60, one or more rings of upper supporting rings 33 with different heights are disposed on an outer wall of the inverted conical cone 31, a lower supporting ring 34 fixed on the vertical supporting frame 1 is disposed below each ring of the corresponding upper supporting ring 33, a gap between an inner ring of the lower supporting ring 34 and the outer wall 31 of the inverted conical cone 31 is in contact with the upper supporting ring 33; the driving motor 60 drives the gear ring 32 on the cylinder 30 through the driving gear 61, so that the gear ring 32 drives the whole lower rotary drum 3 to rotate, the lower supporting ring 34 is in clearance arrangement with the outer wall of the lower rotary drum 3, the lower supporting ring 34 rolls and supports the lower rotary drum 3 through the upper supporting ring 33, the lower rotary drum 3 rotates circumferentially on the lower supporting ring, and the segregation phenomenon of aggregate in the lower rotary drum 3 can be avoided, so that a good segregation preventing effect is achieved.
In the embodiment of the present invention, as shown in fig. 3, 4, 5 and 6, a rolling contact structure 36 is provided between the upper support ring 33 and the lower support ring 34, the rolling contact structure 36 includes an annular rolling support frame 360 fixed on the outer wall of the inverted cone 31, and a rolling device 361 disposed on the annular rolling support frame 360 in a penetrating manner, wherein the outer wall of the top end of the rolling device 361 is in rolling contact with the lower annular surface of the upper support ring 33, the outer wall of the lower end of the rolling device 361 is in rolling contact with the upper annular surface of the lower support ring 34, and the rolling device 361 is a ball or a roller; the top of the rolling device 361 is contacted with the lower ring surface of the upper supporting ring 33, the bottom of the rolling device 361 is contacted with the upper picture of the lower supporting ring 34, the outer wall of the lower rotary cylinder 3 is supported on the lower supporting ring 34 through the annular rolling supporting frame 360 and the rolling device 361, so that the lower rotary cylinder 3 drives the rotary cylinder 3 to rotate when rolling on the lower supporting ring 34 through the rolling device 361.
In the embodiment of the present invention, referring to fig. 4, 5 and 6, an annular positioning guide groove 362 is provided on the lower surface of the upper support ring 33 and near the outer wall of the inverted cone-shaped cone 31, a positioning ring 363 is provided on the outer wall of the inverted cone-shaped cone 31 and on the upper side of the inner ring of the annular rolling support frame 360, a positioning protrusion piece 364 protruding upward and cooperating with the annular positioning guide groove 362 is provided on the upper side of the outer ring of the positioning ring 361, and the positioning protrusion piece 364 of the positioning ring 361 extends into the annular positioning guide groove 362; the lower rotary drum 3 is supported on the lower support ring 34 through the rolling device 361 (balls) on the annular rolling support frame 360, in order to prevent the lower rotary drum 3 from dislocation in the rotation process, the positioning protruding blocks 364 on the annular rolling support frame 360 extend into the annular positioning guide grooves 362 on the lower annular surface of the upper support ring 33, and the positioning protruding blocks 364 on the annular rolling support frame 360 always rotate along the annular positioning guide grooves 362 in the rotation process of the lower rotary drum 3, so that the positioning protruding blocks 364 can be arranged into rollers or balls protruding upwards, and the stability of the lower rotary drum 3 in the rotation process is improved.
In the embodiment of the present invention, referring to fig. 4, 5 and 6, a buffer support spring 365 is disposed on the outer side of the annular rolling support frame 360 and on the upper side of the outer ring of the lower support ring 34, the lower end of the buffer support spring 365 is fixed on the lower support ring 34, a ball 366 is disposed on the top end of the buffer support spring 365, and an annular buffer support groove 367 for accommodating the ball 366 is disposed right above the ball 366 and on the lower side of the outer ring of the upper support ring 33; the upper supporting ring 33 fixed on the outer wall of the lower rotating cylinder 3 is supported on the lower supporting ring 34 through the buffer supporting spring 365, when the lower rotating cylinder 3 is not filled with aggregate to be empty, the rotating cylinder 3 is lifted upwards to a small height under the elastic supporting effect of the buffer supporting spring 365, the rolling device 361 (balls) is separated from the upper supporting ring 33, the whole lower rotating cylinder 3 is supported on the vertical supporting frame 1 through the buffer supporting spring 365 and the lower supporting ring 34, when aggregate falls into the rotating cylinder 3 and is filled with aggregate, the gravity of the lower rotating cylinder 3 is increased to a small height, the buffer supporting spring 365 is extruded through the balls 366, the rotating cylinder 3 is buffered in the falling process, the rotating cylinder 3 is supported on the rolling device 361 (balls) through the upper supporting ring 33 after the rotating cylinder 3 is lowered, so that the rotating cylinder 3 can be rolled and rotated, and at the moment, the driving motor 60 can be started to drive the rotating cylinder 3 to rotate in the rotating process, and the balls 366 rotate in the annular buffer supporting groove 367.
In the embodiment of the present invention, referring to fig. 4, 5 and 6, an upper annular supporting piece 330 for supporting the topmost end of the rolling device 361 is provided on the lower annular surface of the upper supporting ring 33; the lower annular supporting piece 340 for supporting the lowermost end of the rolling device 361 is arranged on the upper annular surface of the lower supporting ring 34, the upper annular supporting piece 330 protrudes downwards along the lower annular surface of the upper supporting ring 33, the lower annular supporting piece 340 protrudes upwards from the upper annular surface of the lower supporting ring 34, the horizontal surface of the upper annular supporting piece 330 and the lower annular surface of the upper supporting ring 33 are not on the same horizontal surface, the horizontal surface of the lower annular supporting piece 340 and the lower annular surface of the lower supporting ring 34 are not on the same horizontal surface, and therefore the rolling device 361 (balls) is arranged, friction or blocking between the annular rolling supporting frame 360 and the rolling device 361 (balls) and between the upper supporting ring 33 and the lower supporting ring 34 in the rotating process is avoided, the rotating drum 3 is difficult to continue to rotate, and the service life of the rotating drum is prolonged.
In the embodiment of the invention, referring to fig. 7 and 8, an annular groove 20 is formed on the outer side wall of the lower port of the upper storage barrel 2, the inner wall of the annular groove 20 on one side far away from the outer wall of the upper storage barrel 2 gradually descends towards the bottom of the groove in a step shape, the upper port of the cylinder 30 is connected with a sealing ring 300 matched and connected with the annular groove 20, a limit bending part 301 which is bent inwards and stretches into the annular groove 20 to be matched is formed on the upper port of the sealing ring 300, the limit bending part 301 is in clearance fit with the interior of the annular groove 20, and a sealing medium which is immersed in the edge of the limit bending part 301 and can move is filled in the annular groove 20, wherein the sealing ring 300 is formed by enclosing a plurality of sections of arc sealing strips, so that the sealing ring 300 is conveniently installed between the annular groove 20 of the upper storage barrel 2 and the upper port of the cylinder 30; because gaps exist between the upper storage cylinder 2 and the lower rotary cylinder 3, aggregate in the storage and blanking processes can cause the aggregate in the lower rotary cylinder 3 to be contacted with external air, so that the quality of the aggregate is influenced, therefore, the limit bending part 301 is fit to extend into the annular groove 20, aggregate particles, aggregate powder are filled in the annular groove 20, the aggregate particles or the aggregate powder can be sand and stone powder or sand and stone particles, and the like, the height of the aggregate particles and the aggregate powder submerges the edge of the limit bending part 301, the edge of the limit bending part 301 is immersed in the aggregate particles, the aggregate powder, the sand and stone powder or the sand and stone particles placed in the annular groove 20, and the sealing ring 300 connected with the upper port of the cylinder 30 can push away sealing mediums in the whole rotary cylinder 3 rotating process, so that the sealing mediums turn in the annular groove 20 without obstructing the rotation of the sealing ring 300 of the circular cylinder 30, and the sealing mediums move in the annular groove in the rotating process, so that the external air is prevented from entering the rotary cylinder 3.
In the embodiment of the invention, referring to fig. 7 and 8, a flexible absorbing member 21 for absorbing sealing medium is fixedly adhered to the edge of the notch of the annular groove 20 at one side far away from the outer wall of the upper storage cylinder 2, the flexible absorbing member 21 is contacted with the inner side wall of the limit bending part 301 of the sealing ring 300 when protruding upwards along the notch of the annular groove 20 and protruding outwards at the edge, the flexible absorbing member 21 is sponge, cotton cloth, gauze and the like, the flexible absorbing member 21 does not obstruct the rotation of the sealing ring 300, and dust generated by powder particles in the rotating process of the rotating cylinder 3 and in the annular groove 20 is absorbed by the flexible absorbing member 21 (sponge, cotton cloth, gauze and the like), and meanwhile, the filling medium in the annular groove 20 can be prevented from being brought into the rotating cylinder 3.
In the embodiment of the present invention, referring to fig. 7 and 8, the sealing medium is water, and the inner wall of the annular groove 20 at the side far from the outer wall of the upper storage cylinder 2 gradually descends to the bottom of the groove in a step shape, the height of the water contained in the annular groove 20 submerges the edge of the limit bending part 301, so that the edge of the limit bending part 301 is submerged in the water in the annular groove 20, the upper port of the cylinder 30 of the lower rotary cylinder 3 is sealed, and the limit bending part 301 does not contact or collide when rotating along the annular groove 20 in the rotating process of the lower rotary cylinder 3 because of the gap between the limit bending part 301 and the annular groove 20, and the limit bending part 301 pushes the water in the annular groove 20 to not leak to the lower rotary cylinder 3 in the flowing process because of the certain depth of the annular groove 20; at the same time, the inner wall of the annular groove 20 at one side of the sealing ring 300 gradually descends to the bottom of the groove in a step shape, and water flow gradually impacts the side wall of the annular groove in a step shape and falls back into the water tank, so that water does not leak into the lower rotary cylinder 3 in the process of flowing in the annular groove 20.
In the embodiment of the present invention, referring to fig. 8, a communicating pipe 22 extending into the large mouth of the upper end of the inverted cone-shaped cone 31 is provided inside the inner side wall of the annular groove 20 near the outer wall side of the upper storage cylinder 2, the communicating pipe 22 is used for discharging gas to the inverted cone-shaped cone 31, and the pressure in the cylinder is reduced in the feeding process; or is used for sending high-pressure gas into the cylinder 30 and the reverse conical cone 31 for exhausting or blowing pipes, and can send high-pressure gas into the cylinder 30 and the reverse conical cone 31 through the communicating pipe 22 after the external discharging in the cylinder is finished, and the aggregates attached to the inner wall of the upper rotating cylinder 3 are blown off.
An embodiment 2, referring to fig. 2 and 4, the segregation preventing device according to the present invention includes at least one cylindrical structure for preventing segregation of aggregate, the cylindrical structure is vertically fixed on a vertical support frame 1, the cylindrical structure includes an upper storage cylinder 2 and a lower rotating cylinder 3, outer walls of the upper storage cylinder 2 and the lower rotating cylinder 3 are connected to the vertical support frame 1, the upper storage cylinder 2 and the lower rotating cylinder 3 are located on the same vertical axis, a lower port of the upper storage cylinder 2 and an upper port of the lower rotating cylinder 3 are in relative rotation contact, a feed port 4 is provided at a top end of the upper storage cylinder 2, the feed port 4 is in a non-central symmetrical shape, a stirring mechanism 5 is provided in the upper storage cylinder 2, a rotation driving mechanism 6 for driving the rotating cylinder 3 to rotate is provided at an outer wall of the lower rotating cylinder 3, and the driving mechanism 6 is the same as the embodiment; the stirring mechanism 5 comprises a stirring motor 51 and a stirring shaft 52, wherein the upper end of the stirring shaft 52 vertically penetrates upwards along the top end of the upper storage cylinder 2 and is connected with the stirring motor 51, the lower end of the stirring shaft 52 vertically extends downwards to be close to a small end outlet 310 at the bottom end of the inverted cone-shaped cone cylinder 31, and a stirring paddle 53 which is inclined downwards is arranged on the stirring shaft 52 positioned in the upper storage cylinder 2; the stirring motor 51 is started to drive the stirring shaft 52 to rotate so as to stir the aggregate in the aggregate cylinder structure, and the aggregate is prevented from being isolated in the upper material storage cylinder 2.
In the embodiment of the present invention, referring to fig. 2, 4 and 9, a discharging screw 54 close to a small end outlet 310 of an inverted cone-shaped cone 31 is arranged on the outer wall of the lower end of a stirring shaft 52, a plurality of stirring wings 55 are rotatably arranged on a vertical stirring rod 53, a reinforcing connecting rod 56 is connected between adjacent stirring wings 55, and a stirring strut 57 parallel to the stirring wings 55 is connected to the reinforcing connecting rod 56; in the process of aggregate falling, when the aggregate impacts the stirring wings 55, the reinforcing connecting rods 56 and the stirring struts 57, the stirring wings 54 rotate along the stirring rods 53, so that the aggregate is further scattered and distributed in the aggregate cylinder; when the stirring motor 51 drives the stirring shaft 52 to rotate to stir the aggregate in the aggregate cylinder structure, the stirring shaft 52 drives the stirring rod 53, the stirring wing 55 and the like to rotate together with the aggregate, so that the mixed aggregate is convenient to stir and convey, and the aggregate is further pre-stirred to prevent segregation phenomenon in the upper material storage cylinder 2; the material discharging spiral 54 can prevent the aggregate from segregating in the inverted cone-shaped cone drum 31, meanwhile, the aggregate is symmetrically discharged, the material discharging spiral 54 can stir the aggregate when the aggregate is stored, the segregation phenomenon of the aggregate can not occur when the aggregate is stacked, the problem that the quality of the aggregate is affected due to the segregation phenomenon of the aggregate when the aggregate is discharged is solved, the influence of centrifugal force generated in the rotating process of the rotating drum 3 on the aggregate is large, the aggregate is uniformly scattered through stirring of the stirring mechanism 5 to fall down to the lower rotating drum 3, the bottommost layer of the aggregate stirs the bottommost aggregate through the material discharging spiral 54, the effect of remixing and stirring is achieved, the aggregate is sent out of the small end outlet 310 at the bottommost end of the rotating drum 3, the aggregate moves along with the stirring process in the rotation of the material discharging spiral 54, the good segregation preventing effect is achieved on the aggregate at the bottom end, the small end outlet 310 of the inverted cone-shaped cone drum 31 is prevented from arching, and the aggregate is prevented from blocking the outlet.
Embodiment 3 a segregation preventing apparatus according to the present invention, the segregation preventing apparatus includes a cylindrical structure having at least one segregation preventing structure, the cylindrical structure being vertically fixed to a vertical support frame 1, the cylindrical structure including an upper storage cylinder 2 and a lower rotating cylinder 3, outer walls of the upper storage cylinder 2 and the lower rotating cylinder 3 being connected to the vertical support frame 1, the upper storage cylinder 2 and the lower rotating cylinder 3 being located on the same vertical axis, a lower port of the upper storage cylinder 2 and an upper port of the lower rotating cylinder 3 being in relative rotational contact, a feed port 4 being provided at a top end of the upper storage cylinder 2, the feed port 4 being of a non-central symmetrical shape, a stirring mechanism 5 being provided in the upper storage cylinder 2, a rotation driving mechanism 6 and a vibrating mechanism 7 being provided at an outer wall of the lower rotating cylinder 3, respectively, the stirring mechanism 6 in the present embodiment being identical to that in embodiment, the rotation driving mechanism 6 being identical to that in embodiment 2; the rotation driving mechanism 6 is used for driving the rotary drum 3 to rotate, the vibration mechanism 7 is arranged on the outer wall of the middle lower part of the lower rotary drum 3, the vibration mechanism 7 comprises a vibration motor 70 and spring assemblies 71, a plurality of spring assemblies 71 are arranged on the outer wall of the middle lower part of the lower rotary drum 3 at intervals along the outlet direction of the lower rotary drum 3, one end of each spring assembly 71 is vertically fixed on the outer wall of the lower rotary drum 3, a supporting plate 72 is integrally arranged on the other end of each spring assembly 71, the vibration motor 70 is arranged on the supporting plate 72, when the vibration motor 70 vibrates on the supporting plate 72, due to the elastic inertia effect of the spring assemblies 71, the vibration motor 70 generates a vibration stroke on the supporting plate, and the vibration motor 70 generates resonance on the supporting plate 72 in the vibration process, so that the vibration effect of the rotary drum 3 is further improved; when the materials fall into the rotary drum 3 for storage and in the process of conveying the materials outwards, arching and discharge segregation can occur at the small end outlet 310 of the rotary drum 3, in order to prevent segregation and arching, the rotary drum 30 is continuously vibrated by starting the vibration motor 70, so that blocking can be avoided, the materials can be rapidly discharged at the small end outlet 310, the arching and segregation phenomena of the small end outlet 310 of the rotary drum 3 are effectively solved, and the quality of mixed materials is ensured.
In embodiment 4, in combination with fig. 2, an embodiment of the present invention provides a mixing station aggregate bin for preventing grading segregation, where the mixing station aggregate bin includes at least one aggregate storage mechanism, where the aggregate storage mechanism includes a segregation device vertically fixed to a vertical support frame 1, where the segregation device includes an upper storage cylinder 2 and a lower rotation cylinder 3, where outer walls of the upper storage cylinder 2 and the lower rotation cylinder 3 are connected to the vertical support frame 1, where the upper storage cylinder 2 and the lower rotation cylinder 3 are located on the same vertical axis, where a lower port of the upper storage cylinder 2 and an upper port of the lower rotation cylinder 3 are in relative rotational contact, where a feed port 4 is provided at a top end of the upper storage cylinder 2, where a stirring mechanism 5 is provided in the upper storage cylinder 2, where an upper end of the outer wall of the lower rotation cylinder 3 is provided with a rotation driving mechanism 6, where a lower end of the outer wall of the lower rotation cylinder 3 is provided with a vibration mechanism 7, and where aggregates are fed from the feed into the feed port 4 into the upper storage cylinder 2 and fall into the lower rotation cylinder 3, and then gradually stack the aggregates 3 into the upper storage cylinder 2 and the lower rotation cylinder 3, where the aggregates can be prevented from falling into the rotation cylinder 3 from rotating and the feed cylinder 2.
In example 5, referring to fig. 1, 3 and 4, the method (process) for preventing stage separation according to the present invention will be described, wherein if the driving motor 60 of the rotary driving mechanism 6 drives the reverse tapered cone 31 of the lower rotary cone 3 to rotate in a clearance, the angular velocity ω generated by the aggregate in the rotary cone 3 by the circumferential rotation and vibration of the rotary cone 3 is so as to avoid the arching and separation phenomenon, and the angular velocity during the clearance rotation is as follows:
wherein d s For the height of any micro-segment unit at depth s along the vertical direction of the wall sticking area, mu is the friction coefficient of aggregate to the wall (aggregate is aggregate on the whole cross section of the wall, only friction force mainly comes from the aggregate on the wall), P s Is the pressure per unit area of the inner wall of the inverted cone 31 at the depth s, and has the unit: kN/m 3 The method comprises the steps of carrying out a first treatment on the surface of the Alpha is the included angle between the inner wall of the inverted cone-shaped cone 31 and the vertical direction; m is the mass of a micro-segment aggregate at depth s, and the unit is kg.
Therefore, the aggregate is subjected to the circumferential rotation and vibration action of the rotary drum 3 in the falling process, so that the aggregate generates a larger angular velocity in the rotary drum 3, and the angular velocity omega is reached, so that the occurrence of segregation phenomenon on the inner wall of the drum can be reduced or avoided; in the invention, any micro-segment unit at the depth s of the wall sticking area of the rotary cylinder 3 is subjected to gravity G in the vertical direction, and the vertical pressure applied to the upper part of the micro-segment unit by aggregate is F 1 The aggregate is subjected to vertical pressure F on the lower part of the micro-segment unit 2 If the included angle between the inner wall of the reverse conical cylinder 31 and the vertical direction is alpha, the frictional resistance per unit area along the wall of the wall sticking area is F f The friction force in the vertical direction is F f Cos alpha, the horizontal friction force is F f Sin alpha. In addition, since the aggregate is subjected to the circumferential rotation and vibration of the rotary drum 3 during the falling, it is also subjected to the axial force F in the horizontal direction c The force calculation formulas are as follows:
G＝γAd s ， (1)；
wherein: gamma is the gravity density of aggregate, kN/m 3 ；
A is the cross-sectional area m of aggregate 2 ；
F f ＝μP s ； (2)；
Wherein: f (F) f kN/m is the frictional resistance of aggregate to the unit area of the bin wall 3 ；
Mu is the friction coefficient of aggregate to the bin wall;
P s kN/m is the pressure per unit area of the wall of the bin at depth s 3 。
Wherein: f (F) c Is the axial force in the horizontal direction, kN;
m is the mass of the storage material at the depth s and kg;
r is the radius of the horizontal section of the storage material at the depth s;
v is the rotational speed, m/s;
omega is the rotational angular velocity, rad/s.
Assuming that the aggregate is free of arching and segregation at the wall-sticking zone depth s, the equations are listed in the horizontal and vertical directions:
substituting equations (1) (2) and (3) into equation (4) respectively yields:
solving to obtain
Therefore, the aggregate is enabled to generate larger angular velocity in the rotary drum 3 through the circumferential rotation and vibration action of the rotary drum 3 in the falling process, and the requirement of formula (6) is met, so that arching and segregation phenomena are avoided to a certain extent.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (10)
1. A grading segregation preventing device, characterized in that: the segregation device comprises a tubular structure for preventing segregation of aggregate, the tubular structure comprises an upper storage cylinder and a lower rotary cylinder, the outer walls of the upper storage cylinder and the lower rotary cylinder are connected to a vertical supporting frame, the upper storage cylinder and the lower rotary cylinder are located on the same vertical axis, the lower port of the upper storage cylinder is in relative rotation contact with the upper port of the lower rotary cylinder, a feeding port is arranged at the top end of the upper storage cylinder, a stirring mechanism is arranged in the upper storage cylinder, and a rotation driving mechanism and a vibration mechanism are respectively arranged on the outer wall of the lower rotary cylinder.
2. A gradation segregation preventing apparatus according to claim 1, wherein: the lower rotary cylinder comprises a cylinder body and an inverted cone-shaped cone cylinder, the rotary driving mechanism comprises a driving motor and a driving gear, the upper port of the cylinder body and the lower port of the upper storage cylinder are in clearance rotation, the lower port of the cylinder body is integrally connected with a large-end inlet of the inverted cone-shaped cone cylinder, the upper end of the stirring mechanism is fixed at the top end of the upper storage cylinder, the lower end of the stirring mechanism downwards extends along the central axis of the upper storage cylinder to be close to a small port of the inverted cone-shaped cone cylinder, a gear ring is arranged on the outer wall of the lower end of the cylinder body, the gear ring is meshed with the driving gear arranged on an output shaft of the driving motor, one or more rings of upper supporting rings with different heights are arranged on the outer wall of the inverted cone-shaped cone cylinder, a lower supporting ring fixed on a vertical supporting frame is arranged below each ring, a clearance is reserved between the inner ring of the lower supporting ring and the outer wall of the inverted cone-shaped cone cylinder, and rolling contact is formed between the upper supporting ring and the lower supporting ring.
3. A gradation segregation preventing apparatus according to claim 2, wherein: the rolling contact structure comprises an annular rolling support frame fixed on the outer wall of the inverted cone-shaped cone cylinder and a rolling device penetrating through the annular rolling support frame up and down, wherein the outer wall of the top end of the rolling device is in rolling contact with the lower annular surface of the upper support ring, and the outer wall of the lower end of the rolling device is in rolling contact with the upper annular surface of the lower support ring.
4. A gradation segregation preventing apparatus according to claim 3, wherein: the positioning device comprises an upper supporting ring, a lower supporting ring, a reverse conical cone, an annular rolling support frame, a positioning ring, a positioning protruding block and a positioning guiding groove, wherein the lower surface of the upper supporting ring is provided with an annular positioning guiding groove close to the outer wall of the reverse conical cone, the positioning ring is arranged on the upper side of the inner ring of the reverse conical cone and positioned on the annular rolling support frame, the positioning protruding block protrudes upwards and is matched with the annular positioning guiding groove, and the positioning protruding block of the positioning ring extends into the annular positioning guiding groove.
5. The grading segregation preventing device according to claim 4, wherein: the outer side of the annular rolling support frame and the upper side of the outer ring of the lower support ring are provided with buffer support springs, the lower ends of the buffer support springs are fixed on the lower support ring, the top ends of the buffer support springs are provided with balls, and annular buffer support grooves which are positioned right above the balls and are used for accommodating the balls are arranged on the lower side of the outer ring of the upper support ring.
6. A gradation segregation preventing apparatus according to claim 3 or 4, characterized in that: an upper annular support piece for supporting the topmost end of the rolling device is arranged on the lower annular surface of the upper support ring, and a lower annular support piece for supporting the bottommost end of the rolling device is arranged on the upper annular surface of the lower support ring.
7. A gradation segregation preventing apparatus according to claim 2, wherein: the upper port of the cylinder is connected with a sealing ring matched and connected with the annular groove, the upper port of the sealing ring is provided with a limiting bending part which is bent inwards and stretches into the annular groove to be matched, the limiting bending part is in clearance fit with the inside of the annular groove, and the annular groove is filled with a sealing medium which is immersed in the edge of the limiting bending part and is movable.
8. The grading segregation preventing device according to claim 7, characterized in that: the flexible absorbing part is arranged at the edge of the notch of the annular groove at one side far away from the outer wall of the upper storage cylinder and is used for absorbing sealing media, wherein the sealing media are water, aggregate particles or aggregate powder, and the flexible absorbing part is in contact with the inner side wall of the limit bending part of the sealing ring when protruding upwards along the notch of the annular groove and extending outwards.
9. A gradation segregation preventing apparatus according to claim 2, wherein: the stirring mechanism comprises a stirring motor and a stirring shaft, wherein the upper end of the stirring shaft vertically penetrates out along the top end of the upper storage cylinder to be connected with the stirring motor, the lower end of the stirring shaft vertically extends downwards to be close to a small end outlet at the bottom end of the inverted cone-shaped cone cylinder, a stirring rod which is inclined downwards is arranged on the stirring shaft in the upper storage cylinder, and a discharging spiral close to the small end outlet of the inverted cone-shaped cone cylinder is arranged on the outer wall of the lower end of the stirring shaft.
10. A mixing station aggregate bin for preventing grading segregation, which is characterized in that: the mixing station aggregate bin comprises at least one aggregate storage mechanism, the aggregate storage mechanism comprises a segregation device which is vertically fixed on a vertical support frame according to any one of claims 1 to 9, the segregation device comprises an upper storage cylinder and a lower rotary cylinder, the outer walls of the upper storage cylinder and the lower rotary cylinder are connected to the vertical support frame, the upper storage cylinder and the lower rotary cylinder are positioned on the same vertical axis, the lower port of the upper storage cylinder is in relative rotary contact with the upper port of the lower rotary cylinder, a feed inlet is arranged at the top end of the upper storage cylinder, a stirring mechanism is arranged in the upper storage cylinder, a rotary driving mechanism is respectively arranged at the upper end part in the outer wall of the lower rotary cylinder, and a vibrating mechanism is arranged at the middle lower end part in the outer wall of the lower rotary cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310699840.0A CN116752399A (en) | 2023-06-13 | 2023-06-13 | Mixing station aggregate bin for preventing grading segregation and segregation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310699840.0A CN116752399A (en) | 2023-06-13 | 2023-06-13 | Mixing station aggregate bin for preventing grading segregation and segregation device |
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| CN116752399A true CN116752399A (en) | 2023-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310699840.0A Pending CN116752399A (en) | 2023-06-13 | 2023-06-13 | Mixing station aggregate bin for preventing grading segregation and segregation device |
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| Country | Link |
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| CN (1) | CN116752399A (en) |
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2023
- 2023-06-13 CN CN202310699840.0A patent/CN116752399A/en active Pending
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