CN111285142B - Open mine chute transshipment conveying system - Google Patents
Open mine chute transshipment conveying system Download PDFInfo
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- CN111285142B CN111285142B CN202010146928.6A CN202010146928A CN111285142B CN 111285142 B CN111285142 B CN 111285142B CN 202010146928 A CN202010146928 A CN 202010146928A CN 111285142 B CN111285142 B CN 111285142B
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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
- B65G69/22—Horizontal loading or unloading platforms
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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
- B65G69/28—Loading ramps; Loading docks
- B65G69/2805—Loading ramps; Loading docks permanently installed on the dock
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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
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/045—Sand, soil and mineral ore
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Abstract
The invention discloses a chute transshipment transportation system for a strip mine, which is provided with a chute (3) for placing ores from an ore unloading platform to an ore transshipment platform (9), wherein the chute (3) is arranged on a mountain slope between the ore unloading platform and the ore transshipment platform (9), the bottom plate structure of the chute (3) viewed from the length direction is narrow at the top and wide at the bottom, the distance between the outlet of the chute (3) and the slope foot of the mountain slope is 3.0-5.0 m, and the vertical height of the chute from the ore transshipment platform (9) is more than 6 m; and a retaining wall (2) is arranged on the outer side of the transshipment platform (9). The invention has simple and easy integral structure, is suitable for being used in surface mines, and is particularly suitable for surface mines to convey ores by utilizing the terrain height difference; ore piles which are arranged on the ore transfer platform in a sliding mode are concentrated, so that transfer is facilitated; the ore transshipment platform foundation adopts bilayer structure, and the lower floor is the river sand bed, and the upper strata is the crushed ore layer, and cushioning effect is strong, can survive the impact of putting the ore through, need not maintain basically.
Description
Technical Field
The invention belongs to the technical field of surface mine transshipment transportation, and particularly relates to a surface mine chute transshipment transportation system which can be widely applied to surface mine exploitation of black, colored, gold, building materials and the like, and is particularly suitable for surface mines to convey ores by utilizing terrain altitude difference.
Background
Compared with the hillside road automobile transportation and the open mine chute transshipment transportation mode, the method has the advantages of simple process, less personnel, high safety and low transportation cost.
The surface mine chutes seem simple, but there are many problems in practical use: usually, the outlet at the lower part of the chute bottom plate is arranged at the toe of a slope, the ore stacking height of the loading platform is very high, and the loaded ore is easy to collapse and causes risks to personnel and equipment. The loading platform is impacted by the downward-sliding ores for a long time, the damage is more serious the longer the time is, and the maintenance cost is high. Usually, the loading platform is not provided with a retaining wall, and is mostly of a straight wall type even if the loading platform is provided with the retaining wall. The ore is scattered and not concentrated all around. Once the chute is blocked or otherwise malfunctions, the disposal is difficult.
Currently, most of the research on the design of the transfer chutes focuses on the structural design of the movable chutes between the 2-belt conveyors, including chute size determination, inclination angle selection, line arrangement, material trajectory, overflow design and the like. The 'process design of the transfer chute of the conveying system' published in the 'open pit mining technology' 2015 12 introduces the difficulty of chute design in detail, improves the service life of the chute, reduces the noise of a transfer point and improves the overall stable operation capacity of the conveying system by optimizing the design, but the chute cannot be applied to an operation system of an open pit mining automobile-chute transfer-automobile.
Disclosure of Invention
The invention aims to provide a safe, efficient, durable, economic and environment-friendly strip mine chute transshipment transportation system which is convenient to maintain and aims at solving the technical problems that chutes and loading platforms in the existing strip mine chute transshipment transportation system are easy to damage, dust pollution is serious in the ore sliding process, blockage or other faults are easy to occur, and the maintenance is inconvenient.
In order to achieve the purpose, the chute transshipment transportation system for the surface mine is realized by the following technical scheme:
the invention discloses a surface mine chute transshipment transportation system which is provided with an upper transportation road, a lower transportation road and an ore transshipment platform, wherein the ore transshipment platform is positioned on the inner side of the lower transportation road; the ore unloading position of the upper transportation road corresponds to the ore transshipment platform up and down, and the ore transshipment platform is characterized in that: the ore transfer platform is provided with a chute for transferring ore from the ore unloading platform to the ore transfer platform, the chute is arranged on a mountain slope between the ore unloading platform and the ore transfer platform, and the bottom plate of the chute viewed from the length direction is narrow at the top and wide at the bottom, so that the ore transfer platform is facilitated; the outlet of the chute is arranged on the mountain slope instead of the position of the slope toe, the distance between the outlet of the chute and the slope toe of the mountain slope is preferably 3.0-5.0 m, and the distance between the outlet of the chute and the vertical height of the ore transferring platform is preferably more than 6 m; in order to prevent the chute from causing dust to scatter around during the process of lowering the ore, a retaining wall is required to be arranged on the outer side of the ore transferring platform.
The ore transfer platform is preferably rectangular, and the width of the ore transfer platform is more than or equal to 20 m; an opening for the dump truck to transfer in and out is reserved on one side of the ore transfer platform.
The cross section of the retaining wall is preferably isosceles trapezoid, and the gradient is generally less than 1: 1.
A pedestrian stepping ladder room for people to go up and down is arranged on one side of the chute, the lower end of the pedestrian stepping ladder room is positioned on the ore transshipment platform, and the upper section of the pedestrian stepping ladder room is positioned on a mountain slope. The pedestrian stepping ladder bay serves as a pedestrian passageway for handling chute blockages or other malfunctions and for servicing the chutes.
The ore transfer platform is of a double-layer structure, the lower layer is a river sand layer, the upper layer is a crushed ore layer, the height of the lower layer is 2-4 m, and the height of the upper layer is 2-4 m; the crushed ore layer refers to: if the ore discharged in the sliding mode is limestone ore, the crushed ore layer is limestone crushed ore, and if the ore discharged in the sliding mode is iron ore, the crushed ore layer is iron ore crushed ore, and the rest can be done in the same way.
The excavation surfaces of the ore transfer platform and the chute are all coated with mortar flaked stone cement mortar, and meanwhile, waterproof and drainage work is well performed on the upstream and downstream of the chute, so that the chute can be normally used even in rainy seasons.
After the technical scheme is adopted, the open mine chute transshipment transportation system has the following positive effects:
(1) the whole structure of the system is simple and easy to implement, and the system is suitable for being used in surface mines, and is particularly suitable for conveying ores by utilizing the terrain difference of the surface mines;
(2) the section of the chute from top to bottom is narrow at the top and wide at the bottom, so that the chute is not easy to block in the ore drawing process and has high operation efficiency; the outlet of the chute is arranged on the mountain side slope instead of the position of the slope toe, so that the outlet of the chute is prevented from being blocked in the ore drawing process;
(3) ore piles which are arranged on the ore transfer platform in a sliding mode are concentrated, so that transfer is facilitated;
(4) the ore transfer platform foundation adopts a double-layer structure, the lower layer is a river sand layer, the upper layer is a crushed ore layer, the buffering effect is strong, the impact of ore sliding can be withstood, and the maintenance is basically not needed;
(5) the pedestrian stepping ladder compartment is arranged, so that the system is convenient to maintain;
(6) set up retaining wall in the outside of ore reprinting platform, effectively prevent the chute and cause the dust to scatter everywhere transferring the ore in-process.
Drawings
FIG. 1 is a schematic plan view of a surface mine chute transshipment conveyor system of the present invention;
FIG. 2 is a schematic cross-sectional view of a surface mine chute transshipment transportation system of the present invention.
The reference signs are: 0-upper transport road; 1-lower transport road; 2-a retaining wall; 3-chute; 4-ore heap; 5-original topography of mountain slope; 6-step ladder room; 7-chute bottom plate bottom; 8-a vehicle bumper; 9-an ore transshipment platform; 10-dump truck; first, lower layer; ② an upper layer.
Detailed Description
In order to better describe the invention, the surface mine chute transshipment transportation system of the invention is further described in detail with reference to the accompanying drawings.
As shown in fig. 1, the plan layout schematic diagram of the open mine chute transshipment transportation system of the invention is combined with fig. 2, the open mine chute transshipment transportation system of the invention is provided with an upper transportation road 0, a lower transportation road 1, an ore transshipment platform 9 and a chute 3 for ore to be transferred from an ore unloading platform to the ore transshipment platform 9, the ore transshipment platform 9 is positioned at the inner side of the lower transportation road 1, the ore unloading platform is arranged at the ore unloading position of the upper transportation road 0, a vehicle stop 8 is arranged at the outer side of the ore unloading platform, and the ore unloading position of the upper transportation road 0 corresponds to the ore transshipment platform 9 up and down; the car bumper 8 needs to be located right above the chute 3, so that the situation that the chute 3 is damaged due to overlarge impact of ore sliding on two sides of the chute 3 is avoided. The ore is put down from the ore unloading platform above the chute 3 through the dump truck 10 and is piled up on the ore transshipment platform 9, and the dump truck 10 loads the ore on the ore transshipment platform 9 for outward transportation. The ore transfer platform 9 is rectangular, the width of the ore transfer platform 9 is more than or equal to 20m, and an opening for the dump truck 10 to transfer in and out is reserved on one side of the ore transfer platform 9. The bottom plate structure of the chute 3 viewed from the length direction is narrow at the top and wide at the bottom, the distance between the outlet of the chute 3 and the slope foot of the mountain slope is 3.0-5.0 m, and the vertical height from the chute 3 to the ore transfer platform 9 is more than 6 m; the retaining wall 2 is arranged on the outer side of the ore transfer platform 9, the section of the retaining wall 2 is isosceles trapezoid, the gradient is smaller than 1:1, and the purpose of arranging the retaining wall 2 is to prevent dust from flying around during the ore transfer process of the chute. The excavated surfaces of the ore transfer platform 9 and the chute 3 are all coated with mortar flaked stone cement mortar, and meanwhile, the upstream and downstream of the chute 3 are well subjected to waterproof and drainage work, so that the chute 3 can be normally used even in rainy seasons.
As shown in the section arrangement schematic diagram of the chute transshipment transportation system of the open mine, which is shown in FIG. 2, the foundation of the ore transshipment platform 9 adopts a double-layer structure, wherein the lower layer is a river sand layer, the upper layer is a crushed ore layer, the height of the lower layer is 2-4 m, and the height of the upper layer is 2-4 m, and can be increased according to the increase of the height of the chute 3; the crushed ore layer refers to: if the ore discharged by the ore discharge device is limestone ore, the crushed ore layer is limestone crushed ore, and if the ore discharged by the ore discharge device is iron ore, the crushed ore layer is iron ore crushed ore, and so on.
Claims (3)
1. The utility model provides a surface mine chute reprints conveyor system, is equipped with upper portion transportation highway (0), lower part transportation highway (1), ore reprints platform (9) are located the inboard of lower part transportation highway (1), the position of unloading of upper portion transportation highway (0) sets up the platform of unloading, set up car bumper (8) in the outside of the platform of unloading, the position of unloading of upper portion transportation highway (0) corresponds its characterized in that from top to bottom with ore reprints platform (9) position: the ore unloading device is also provided with a chute (3) for placing ore from the ore unloading platform to the ore transferring platform (9), the chute (3) is arranged on a mountain slope between the ore unloading platform and the ore transferring platform (9), the bottom plate structure of the chute (3) viewed from the length direction is narrow at the top and wide at the bottom, the distance between the outlet of the chute (3) and the slope foot of the mountain slope is 3.0-5.0 m, and the vertical height of the chute from the ore transferring platform (9) is more than 6 m; a retaining wall (2) is arranged on the outer side of the ore transshipment platform (9), the section of the retaining wall (2) is isosceles trapezoid, and the gradient is less than 1: 1; a pedestrian stepping ladder room (6) for people to go up and down is arranged on one side of the chute (3), the lower end of the pedestrian stepping ladder room (6) is positioned on the ore transfer platform (9), and the upper section of the pedestrian stepping ladder room (6) is positioned on a mountain slope; the ore transfer platform (9) is of a double-layer structure, wherein the lower layer is a river sand layer, the upper layer is a crushed ore layer, the height of the lower layer is 2-4 m, and the height of the upper layer is 2-4 m; the crushed ore layer refers to: if the ore discharged in the sliding mode is limestone ore, the crushed ore layer is limestone crushed ore, and if the ore discharged in the sliding mode is iron ore, the crushed ore layer is iron ore crushed ore, and the rest can be done in the same way.
2. A surface mine chute transshipment system, as defined in claim 1, wherein: the ore transfer platform (9) is rectangular, and the width of the ore transfer platform (9) is more than or equal to 20 m; an opening for the dump truck (10) to transfer in and out is reserved on one side of the ore transfer platform (9).
3. A surface mine chute transshipment system according to claim 1 or claim 2, wherein: the excavation surfaces of the ore transfer platform (9) and the chute (3) are all coated with mortar flaked stone cement mortar, and meanwhile, the upstream and downstream of the chute (3) are well subjected to waterproof and drainage work, so that the chute (3) can be normally used even in rainy seasons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010146928.6A CN111285142B (en) | 2020-03-05 | 2020-03-05 | Open mine chute transshipment conveying system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010146928.6A CN111285142B (en) | 2020-03-05 | 2020-03-05 | Open mine chute transshipment conveying system |
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| CN111285142A CN111285142A (en) | 2020-06-16 |
| CN111285142B true CN111285142B (en) | 2022-05-27 |
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| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202560233U (en) * | 2012-04-24 | 2012-11-28 | 中国水电顾问集团华东勘测设计研究院 | Vertical transportation structure for gravel aggregate semi-finished products |
| CN103397636A (en) * | 2013-08-21 | 2013-11-20 | 北京华石纳固科技有限公司 | Vertical transportation system for mountain stone and transportation method of vertical transportation system |
| CN106629134A (en) * | 2017-02-21 | 2017-05-10 | 中冶北方（大连）工程技术有限公司 | Underground mine continuous ore drawing equipment |
| CN107503751A (en) * | 2017-08-17 | 2017-12-22 | 广西大学 | A kind of strip pit ore drawing chute and strip pit recovery method |
-
2020
- 2020-03-05 CN CN202010146928.6A patent/CN111285142B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202560233U (en) * | 2012-04-24 | 2012-11-28 | 中国水电顾问集团华东勘测设计研究院 | Vertical transportation structure for gravel aggregate semi-finished products |
| CN103397636A (en) * | 2013-08-21 | 2013-11-20 | 北京华石纳固科技有限公司 | Vertical transportation system for mountain stone and transportation method of vertical transportation system |
| CN106629134A (en) * | 2017-02-21 | 2017-05-10 | 中冶北方（大连）工程技术有限公司 | Underground mine continuous ore drawing equipment |
| CN107503751A (en) * | 2017-08-17 | 2017-12-22 | 广西大学 | A kind of strip pit ore drawing chute and strip pit recovery method |
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| CN111285142A (en) | 2020-06-16 |
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