CN110949939A - Vertical transportation structure for sand aggregate exploitation - Google Patents
Vertical transportation structure for sand aggregate exploitation Download PDFInfo
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- CN110949939A CN110949939A CN201911269240.0A CN201911269240A CN110949939A CN 110949939 A CN110949939 A CN 110949939A CN 201911269240 A CN201911269240 A CN 201911269240A CN 110949939 A CN110949939 A CN 110949939A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G11/00—Chutes
- B65G11/02—Chutes of straight form
- B65G11/026—Chutes of straight form for bulk
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G11/00—Chutes
- B65G11/14—Chutes extensible, e.g. telescopic
- B65G11/146—Chutes extensible, e.g. telescopic for bulk
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G11/00—Chutes
- B65G11/20—Auxiliary devices, e.g. for deflecting, controlling speed of, or agitating articles or solids
- B65G11/206—Auxiliary devices, e.g. for deflecting, controlling speed of, or agitating articles or solids for bulk
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
- B65G69/181—Preventing escape of dust by means of sealed systems
- B65G69/182—Preventing escape of dust by means of sealed systems with aspiration means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/30—Wind motors specially adapted for installation in particular locations
- F03D9/32—Wind motors specially adapted for installation in particular locations on moving objects, e.g. vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to the field of stone transportation, and particularly discloses a vertical transportation structure for sandstone aggregate mining, which comprises a top stuffing box, a bottom collection box and a conveying pipeline, wherein the top stuffing box is arranged at the top of the vertical transportation structure; be connected through pipeline between top stuffing box and bottom collecting box, be provided with vertically in the bottom collecting box and towards the orificial kinetic energy collecting plate of pipeline lower extreme, fixedly connected with a plurality of reset spring on the left side of kinetic energy collecting plate, reset spring's other one end is fixed on the inner wall of bottom collecting box, is fixed with the horizontally connecting rod that stretches out the bottom collecting box on the left side center of kinetic energy collecting plate, the other one end fixedly connected with bellows structure of connecting rod, the air-out of bellows structure is served and have wind power generation set through the tuber pipe intercommunication. According to the invention, the kinetic energy collecting plate receives the impact of the stone falling from the upper part, the kinetic energy is converted into electric energy, and the falling of the stone is utilized to generate electricity, so that the production cost of an enterprise is reduced.
Description
Technical Field
The invention relates to the field of stone transportation, in particular to a vertical transportation structure for mining gravel aggregates.
Background
In hydroelectric engineering which adopts materials mined from a stone yard as a concrete aggregate source, the selected stone yard is often positioned on a high and steep hill (top) and between the material yard and a sand processing system, the selected stone yard has the characteristics of large height difference, short horizontal transport distance, complex terrain conditions and the like, and the mined rough materials are large in particle size and are generally coarsely crushed near the stone yard and then are conveyed to the sand processing system for further processing. The coarsely crushed material is called semi-finished material. The traditional semi-finished product transportation mode mainly adopts dump truck transportation, the transportation road is difficult to construct, the influence on the surrounding environment is large, the road difference is steep, the driving speed is slow, the initial investment is large, the transportation cost is high, and the safety is low; some projects also adopt a chute (vertical shaft) for transportation, but the construction of the chute (vertical shaft) is greatly influenced by geological conditions, uncertain factors are more during the construction of the cavern, and accidents such as well blockage and the like are easy to occur during the operation.
The existing vertical conveying structure is simple in structure and can not be flexibly used, particularly, the vertical conveying structure can be used for moving operation, in addition, potential energy of stone falling from a high position is converted into kinetic energy moving at a high speed, and if the energy is utilized, the production cost of an enterprise can be reduced, and the income is improved.
Disclosure of Invention
The invention aims to provide a vertical transportation structure for excavating sandstone aggregates, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a vertical transportation structure for exploitation of gravel aggregate comprises a top stuffing box, a bottom collection box and a conveying pipeline; the top stuffing box is arranged at a high position, the bottom collecting box is arranged at a low position, and the top stuffing box and the bottom collecting box are connected through a conveying pipeline, so that semi-finished stone materials are loaded into the bottom collecting box which naturally falls to the lower position along the conveying pipeline from the top stuffing box at the top; the bottom collecting box is internally provided with a vertical kinetic energy collecting plate facing to the pipe orifice at the lower end of the conveying pipeline, the kinetic energy collecting plate is used for blocking stones falling in the conveying pipeline, so that the stones strike on the kinetic energy collecting plate and push the kinetic energy collecting plate to move leftwards, the left side of the kinetic energy collecting plate is fixedly connected with a plurality of reset springs, the other ends of the reset springs are fixed on the inner wall of the bottom collecting box and support the kinetic energy collecting plate, a horizontal connecting rod extending out of the bottom collecting box is fixed in the center of the left side of the kinetic energy collecting plate and synchronously moves along with the kinetic energy collecting plate, the other end of the connecting rod is fixedly connected with an air box structure, the horizontally generated thrust can be converted into continuous wind power by the air box structure, the continuous air is blown out by the air box structure, an air outlet pipe of the air box structure is communicated with, the wind power generation device mainly comprises a sealed shell, an impeller and a generator, wherein the impeller is positioned in the shell and is blown by air blown out by an air pipe, the generator is coaxially connected with the impeller, and the blown air enables the impeller to rotate so as to drive the generator to rotate and realize power generation.
Further: the side of the kinetic energy collecting plate facing the conveying pipeline is fixedly provided with a plurality of crushing teeth which are uniformly distributed and are of a conical structure, so that stone materials collided on the kinetic energy collecting plate are easy to crush, and the stone materials are convenient to transport, process and use subsequently.
Further: an upward convex stop block is fixed on the lower side of the lower port of the conveying pipeline, the longitudinal section of the stop block is of a triangular structure, and stones rolled down from the upper side fly up after being blocked by the stop block, so that the moving direction of the stones is changed, and the stones are enabled to be opposite to the kinetic energy collecting plate to move.
Further: the kinetic energy collecting plate is provided with a feed opening below one side facing the conveying pipeline, and the bottom of the feed opening is communicated with a collecting box to collect falling stones.
Further: the top stuffing box is communicated with a dust removal fan which is communicated with a bag-type dust remover, so that dust generated by stones in the transportation process is reduced.
Further: the upper end and the lower end of the kinetic energy collecting plate can be connected with the top and the bottom of the bottom collecting box in a sliding mode, the kinetic energy collecting plate is better supported, and long-time use and deviation are avoided.
Further: the conveying pipeline comprises a top connecting pipe, a middle connecting pipe and a bottom connecting pipe which are the same in diameter, the top connecting pipe, the middle connecting pipe and the bottom connecting pipe are communicated through a conveying pipeline connecting structure, the top connecting pipe and the bottom connecting pipe are respectively communicated with the top packing box and the bottom collecting box, the middle connecting pipes of a plurality of are communicated between the top connecting pipe and the bottom connecting pipe, and different quantities can be adjusted according to the height.
Further: the conveying pipeline connecting structure comprises an inner slot formed in the inner wall of the conveying pipeline on one side and an outer inserting piece fixed on the conveying pipeline on the other side and capable of being inserted into the inner slot, so that the conveying pipelines on two sides are inserted together.
Further: the through hole is formed in the side wall corresponding to the inner slot, the threaded hole corresponding to the through hole is formed in the outer inserting piece, the outer inserting piece is inserted into the inner slot, the fixing bolt is inserted into the through hole and is fixed to the threaded hole in a threaded mode, the conveying pipelines on the two sides are fixed, separation is avoided, and the length of the conveying pipeline can be adjusted.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the kinetic energy collecting plate receives the impact of the stone falling from the upper part, and the kinetic energy is converted into electric energy, and the falling of the stone is utilized to generate electricity, so that the production cost of an enterprise is reduced; pipeline is detachable construction, can adjust pipeline's length through the intermediate junction pipe of increase and decrease to simple to operate, it is swift to peg graft, is difficult for droing, has improved the security that transport structure used, can adapt to not co-altitude and use, improves application range.
Drawings
FIG. 1 is a schematic structural view of a vertical transportation structure for sand and stone aggregate mining.
FIG. 2 is a schematic structural view of a kinetic energy collecting plate in a vertical transportation structure for mining gravel aggregates.
FIG. 3 is a schematic structural view of a connecting structure of a conveying pipeline in a vertical transportation structure for mining gravel aggregates.
In the figure: 1-a top stuffing box, 2-a bottom collecting box, 3-a top connecting pipe, 4-a middle connecting pipe, 5-a bottom connecting pipe, 6-a conveying pipeline connecting structure, 7-a stop block, 8-a kinetic energy collecting plate, 9-a return spring, 10-a connecting rod, 11-an air box structure, 12-an air pipe, 13-a wind power generation device, 14-a discharge port, 15-a collecting box, 16-a dust removing fan, 17-a conveying pipeline, 18-an inner slot, 19-an outer insert sheet, 20-a threaded hole, 21-a through hole, 22-a fixing bolt and 23-a crushing tooth.
Detailed Description
Example 1
Referring to the drawings, in the embodiment of the invention, the vertical transportation structure for the exploitation of the sandstone aggregate comprises a top stuffing box 1, a bottom collection box 2 and a conveying pipeline 17; the top stuffing box 1 is arranged at a high position, the bottom collecting box 2 is arranged at a low position, and the top stuffing box 1 and the bottom collecting box 2 are connected through a conveying pipeline 17, so that semi-finished stone materials are loaded into the bottom collecting box 2 which naturally falls to the lower part along the conveying pipeline 17 from the top stuffing box 1 at the top; the top stuffing box 1 is communicated with a dust removal fan 16, and the dust removal fan 16 is communicated with a bag-type dust remover, so that dust generated by stones in the transportation process is reduced.
The bottom collecting box 2 is internally provided with a kinetic energy collecting plate 8 which is vertical and faces to a pipe orifice at the lower end of the conveying pipeline 17, the kinetic energy collecting plate 8 is used for blocking stones falling in the conveying pipeline 17, so that the stones are impacted on the kinetic energy collecting plate 8 to push the kinetic energy collecting plate 8 to move leftwards, the left side of the kinetic energy collecting plate 8 is fixedly connected with a plurality of reset springs 9, the other ends of the reset springs 9 are fixed on the inner wall of the bottom collecting box 2 to support the kinetic energy collecting plate 8, the upper end and the lower end of the kinetic energy collecting plate 8 can be in sliding connection with the top and the bottom of the bottom collecting box 2, the kinetic energy collecting plate 8 is better supported, and deviation caused by long-time use is; a horizontal connecting rod 10 extending out of the bottom collecting box 2 is fixed in the center of the left side of the kinetic energy collecting plate 8, the connecting rod 10 moves synchronously with the kinetic energy collecting plate 8, an air box structure 11 is fixedly connected to the other end of the connecting rod 10, the air box structure 11 can convert horizontally generated thrust into continuous wind power, and continuous air is blown out through the air box structure 11, the air box structure 11 is the existing mature technology, which is not described in detail herein, a wind power generation device 13 is communicated with the wind outlet end of the air box structure 11 through an air pipe 12, the air is blown out from the air pipe 12 and blown onto the wind power generation device 13, the wind power generation device 13 mainly comprises a sealed shell, an impeller which is located inside the shell and is blown by the air blown out from the air pipe 12, and a generator coaxially connected with the impeller, and the blown air makes the impeller rotate, thereby driving the generator to rotate.
A plurality of crushing teeth 23 are fixed on one side surface of the kinetic energy collecting plate 8 facing the conveying pipeline 17, the crushing teeth 23 are uniformly distributed and have a conical structure, so that stones collided on the kinetic energy collecting plate 8 are easy to crush, and the stones are convenient to transport, process and use subsequently; an upward convex stop block 7 is fixed on the lower side of the lower port of the conveying pipeline 17, the longitudinal section of the stop block 7 is of a triangular structure, and stones rolled down from the upper side fly up after being stopped by the stop block 7, so that the moving direction of the stones is changed, and the stones are enabled to just face the kinetic energy collecting plate 8 to move.
The lower part of one side of the kinetic energy collecting plate 8 facing the conveying pipeline 17 is provided with a feed opening 14, and the bottom of the feed opening 14 is communicated with a collecting box 15 to collect falling stones.
During the use, with top gland packing 1 as for the eminence, bottom collecting box 2 as for the low place, building stones are filled from top gland packing 1, and move down along pipeline 17, in-process gravitational potential energy conversion kinetic energy that falls, quick striking is on kinetic energy collecting plate 8 of below, promote kinetic energy collecting plate 8 to move left, because the discontinuity of building stones, make the continuous striking of building stones that falls on kinetic energy collecting plate 8, make kinetic energy collecting plate 8 control round trip movement, thereby promote the continuous air that blows off of bellows structure 11, the air blows in wind power generation set 13, realize wind power generation.
Example 2
On the basis of the embodiment 1, the conveying pipeline 17 comprises a top connecting pipe 3, a middle connecting pipe 4 and a bottom connecting pipe 5 which have the same diameter, the top connecting pipe 3, the middle connecting pipe 4 and the bottom connecting pipe 5 are communicated through a conveying pipeline connecting structure 6, the top connecting pipe 3 and the bottom connecting pipe 5 are respectively communicated with the top stuffing box 1 and the bottom collecting box 2, a plurality of middle connecting pipes 4 are communicated between the top connecting pipe 3 and the bottom connecting pipe 5, and different quantities can be adjusted according to the height; as shown in fig. 3, the conveying pipeline connecting structure 6 includes an inner slot 18 formed on the inner wall of the conveying pipeline 17 on one side, and an outer insert 19 fixed on the conveying pipeline 17 on the other side and capable of being inserted into the inner slot 18, so that the conveying pipelines 17 on both sides are inserted together, a through hole 21 is formed in the side wall corresponding to the inner slot 18, a threaded hole 20 corresponding to the through hole 21 is formed in the outer insert 19, a fixing bolt 22 is inserted into the through hole 21 in the inner slot 18 in the outer insert 19, and the fixing bolt 22 is screwed in the threaded hole 20 to fix the conveying pipelines 17 on both sides, thereby avoiding separation, and realizing adjustment of the length of the conveying pipeline 17.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. A vertical transportation structure for sand aggregate mining comprises a top stuffing box (1), a bottom collection box (2) and a conveying pipeline (17); be connected through pipeline (17) between top stuffing box (1) and bottom collecting box (2), its characterized in that, be provided with in bottom collecting box (2) vertical and towards pipeline (17) lower extreme orificial kinetic energy collecting plate (8), a plurality of reset spring (9) of fixedly connected with on the left side of kinetic energy collecting plate (8), the other one end of reset spring (9) is fixed on the inner wall of bottom collecting box (2), be fixed with horizontally connecting rod (10) that stretch out bottom collecting box (2) on the left side center of kinetic energy collecting plate (8), the other one end fixedly connected with bellows structure (11) of connecting rod (10), the air-out of bellows structure (11) is served and is had wind power generation set (13) through tuber pipe (12) intercommunication.
2. The vertical transportation structure for mining sand and stone aggregate as claimed in claim 1, wherein: a plurality of crushing teeth (23) are fixed on one side surface of the kinetic energy collecting plate (8) facing the conveying pipeline (17), and the crushing teeth (23) are uniformly distributed and are of a conical structure.
3. The vertical transportation structure for mining sand and stone aggregate as claimed in claim 2, wherein: a stop block (7) which protrudes upwards is fixed on the lower side of the lower port of the conveying pipeline (17), and the longitudinal section of the stop block (7) is of a triangular structure.
4. The vertical transportation structure for mining sand and stone aggregate as claimed in claim 1, wherein: one side of the kinetic energy collecting plate (8) facing the conveying pipeline (17) is provided with a feed opening (14), and the bottom of the feed opening (14) is communicated with a collecting box (15).
5. The vertical transportation structure for mining sand and stone aggregate as claimed in claim 1, wherein: the top stuffing box (1) is communicated with a dust removal fan (16).
6. The vertical transportation structure for mining sand and stone aggregate as claimed in claim 1, wherein: the upper end and the lower end of the kinetic energy collecting plate (8) are in sliding connection with the top and the bottom of the bottom collecting box (2).
7. A vertical transport structure for the mining of sand and stone aggregates as claimed in any one of claims 1 to 6, wherein: the conveying pipeline (17) comprises a top connecting pipe (3), a middle connecting pipe (4) and a bottom connecting pipe (5) which are the same in diameter, the top connecting pipe (3), the middle connecting pipe (4) and the bottom connecting pipe (5) are communicated through a conveying pipeline connecting structure (6), and the top connecting pipe (3) and the bottom connecting pipe (5) are respectively communicated with the top packing box (1) and the bottom collecting box (2).
8. The vertical transportation structure for mining sand and stone aggregate as claimed in claim 7, wherein: the conveying pipeline connecting structure (6) comprises an inner slot (18) formed in the inner wall of the conveying pipeline (17) on one side and an outer inserting piece (19) fixed on the conveying pipeline (17) on the other side and capable of being inserted into the inner slot (18).
9. The vertical transportation structure for sand and stone aggregate mining of claim 8, wherein: the pipeline conveying device is characterized in that a through hole (21) is formed in the side wall corresponding to the inner slot (18), a threaded hole (20) corresponding to the through hole (21) is formed in the outer inserting piece (19), the outer inserting piece (19) is inserted into the inner slot (18), a fixing bolt (22) is inserted into the through hole (21), and the fixing bolt (22) is fixed to the threaded hole (20) in a threaded mode to fix the conveying pipelines (17) on the two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911269240.0A CN110949939A (en) | 2019-12-11 | 2019-12-11 | Vertical transportation structure for sand aggregate exploitation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911269240.0A CN110949939A (en) | 2019-12-11 | 2019-12-11 | Vertical transportation structure for sand aggregate exploitation |
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| CN110949939A true CN110949939A (en) | 2020-04-03 |
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| CN201911269240.0A Pending CN110949939A (en) | 2019-12-11 | 2019-12-11 | Vertical transportation structure for sand aggregate exploitation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115108235A (en) * | 2022-08-29 | 2022-09-27 | 中铁工程服务有限公司 | Mine aggregate conveying system and conveying system laying method |
| CN115502175A (en) * | 2022-09-06 | 2022-12-23 | 镇康县振兴矿业开发有限责任公司 | Tailing falling device based on tailing conveying treatment and application thereof |
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Application publication date: 20200403 |