CN103334755B - Slope hoisting and crushing system for deep open-pit mine - Google Patents

Abstract

The invention discloses a slope lifting and crushing system for a deep concave open-pit mine. Steel structure box girders are combined and installed on the slope of the stope. The track on the slope is laid on the steel structure box girder, and the mine car is set on the track; the hoist is connected with the mine car through the sky wheel guide device and the wire rope group; There is a dumping platform on the deep working steps of the stope, and the mine car receives ore on the dumping platform through the car on the deep working steps of the stope; on the top of the stope and below the track, there are crushing station receiving troughs and rough The crusher and the mine car are lifted to the top of the stope by the hoist, and the ore is unloaded into the receiving chute of the crushing station. The invention has the characteristics of low mining and stripping cost, flexibility and convenience, small lifting force, environmental protection, high efficiency and energy saving, safety and reliability, wide application range and the like.

Description

A slope lifting and crushing system for deep concave open-pit mines

technical field

The invention relates to a complete set of semi-continuous mining system equipment for large-scale deep concave open-pit mines, especially suitable for a deep concave open-pit mine slope lifting and crushing system with an annual output of 5-40 million tons, and can be widely used in mine mining, transportation and crushing technology field.

Background technique

In the 1940s and 1950s, the mining vehicle hoisting and transportation technology for deep concave open-pit mines was proposed. The mining vehicle filled with ore rocks was pulled from the bottom of the deep concave open-pit stope along the track to the top of the stope by a winch. , and then transported by mining trucks to the crushing workshop far away from the stope for crushing. Since the self-weight of the vehicle is about 45% of the material weight, the traction of the winch and the bearing capacity of the roadbed are additionally increased; in addition, the slope track for lifting the vehicle is fixed, and the extension and movement are not flexible. The above factors have resulted in high operating costs of the lifting and transportation process in the deep concave open-pit mine, difficulty in arranging process facilities and inconvenient movement, which has reduced the operating rate of the lifting and transportation process in the deep concave open-pit mine.

In order to facilitate the transportation of ore, another way is to build the crusher directly at the bottom of the deep concave open-pit stope, and the mining truck sends the ore at the bottom of the stope to the crusher, and after being crushed by the crusher, it is transported to the Processing plants or dumps. However, with the deepening of the depth of the deep concave open pit, it is necessary to continuously move the crushing station and reinstall the crusher at the new bottom, which not only causes waste of equipment, but also increases the cost of construction. For this reason, an efficient and economical method for transporting ore rocks from the deep concave open-pit mine is sought to ensure the production capacity of the deep concave open-pit mine and reduce transportation costs.

Contents of the invention

In order to overcome the problems existing in the prior art, the object of the present invention is to provide a slope lifting and crushing system for deep concave open-pit mines, which solves the additional hoisting traction force caused by the lifting of the whole vehicle through the lifting of the mine car and the extension of the slope track And the bearing capacity of the roadbed, as well as the problem of inflexibility in the extension and movement of the slope track, and solve the problem of equipment waste and construction cost increase caused by the continuous relocation of crushing stations. Guarantee the production capacity of deep concave open-pit mines, reduce transportation costs, save investment, and are safe and reliable.

The object of the present invention is achieved in this way. A slope lifting and crushing system for a deep concave open-pit mine includes tracks laid on the top of the deep concave open-pit stope and on the slope, and a hoist installed on the top of the deep concave open-pit stope. The steel structure box girder is combined and installed on the slope of the concave open pit, the track on the slope is laid on the steel structure box girder, and the mine car is arranged on the track; the hoist is connected with the mine car through the sky wheel guide device and the wire rope group; There is a tipping platform on the deep working steps of the deep concave open pit, and the mine car receives ore on the deep working step of the deep concave open pit by a car on the dumping platform; on the top of the deep concave open pit and on the track There is a crushing station receiving trough and a coarse crusher below. The mine car is lifted to the top of the deep concave open-pit stope by a winch, and the ore is unloaded into the crushing station receiving trough. factory or dump.

Described track is two groups, respectively has a mining car on every group of tracks, and two mining cars make the counterweight of winch mutually.

The mine car is a non-powered mine car, and the maximum volume of the mine car matches the load of the car.

The present invention is a slope lifting and crushing system for deep concave open-pit mines, which replaces the relocation of the crushing station by lifting the mine car and extending the slope track, and replaces the lifting car by lifting the light mine car, so that the car moves to the original ore (rock) of the mine car. The tipping position is extended with the depth of the deep concave open-pit stope, which not only solves the problems of heavy vehicle body, high operating cost, difficulty in arranging process facilities and inconvenient movement in the process of lifting and transporting the whole vehicle, but also saves on The construction cost of building a crushing station at the bottom of a deep concave open pit. The system has the characteristics of low mining and stripping cost, flexibility and convenience, small lifting force, small bearing capacity of track and steel structure box girder, green environmental protection, high efficiency and energy saving, safety and reliability, wide application range of open pit lifting, etc., no matter in terms of production capacity Or from the scope of improvement, it has reached the international initiative and filled the international gap, with great economic and social benefits.

Description of drawings

Fig. 1 is the structural representation of the slope lifting crushing system of the deep concave open-pit mine of the present invention;

Fig. 2 is a top view of the crushing and unloading station part in Fig. 1;

Fig. 3 is a schematic diagram of the planar structure of a steel structure box girder in Fig. 1;

Fig. 4 is a schematic diagram of the facade structure of steel structure box girder in Fig. 1;

Fig. 5 is a schematic diagram of the horizontal elevation structure of the crushing and unloading station in Fig. 1;

Fig. 6 is a schematic diagram of the longitudinal elevation structure of the crushing and unloading station in Fig. 1;

FIG. 7 is a top view of FIG. 6 .

In the figure: 1-mining car, 2-car, 3-dumping platform, 4-hoist, 5-trunk guide device, 6-wire rope group, 7-bottom side unloading curved rail, 8-crushing station receiving trough , 9-coarse crusher, 10-track, 11-steel structure box girder, 12-bottom side unloading roller, 13-mining car ear, 14-mining car tipping floor.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings.

As shown in Figures 1 and 2, a slope lifting and crushing system for a deep concave open-pit mine of the present invention includes a track 10 laid on the top of the deep concave open-pit stope and on the slope, and a hoist 4 arranged on the top of the deep concave open-pit stope. It is characterized in that a steel structure box girder 11 is installed on the slope of the deep concave open pit, and the track 10 on the slope is laid on the steel structure box girder 11 (see Figures 3 and 4). And extend, the independent slope steel structure box girder 11 does not establish concrete foundation, it is flexible and convenient to change the mobile position in the open-pit stope, save investment, ensure the production capacity of the deep concave open-pit mine, and reduce transportation costs. A mine car 1 is arranged on the track 10; the hoist 4 is connected with the mine car 1 through the sky wheel guide device 5 and the wire rope group 6; Deepening and deepening; the mine car 1 receives ore on the dumping platform 3 through the car 2 on the deep working steps of the deep concave open pit; there is a crushing station on the top of the deep concave open pit and below the track to receive materials Groove 8 and coarse crusher 9, mine car 1 is lifted to the top of the deep concave open-pit stope by winch 4, ore is unloaded into the receiving trough 8 of the crushing station, and the ore is crushed by coarse crusher 9 and then transported to the dressing plant by belt conveyor Or a dump.

As shown in Figures 1 and 2, the present invention provides a slope lifting and crushing system for deep concave open-pit mines. There are two groups of tracks 10, and each group of tracks 10 has a mine car 1 (see Figures 3 and 4), two mine cars 1 runs on the track 10 and acts as the counterweight of the winch 4 each other. The mine car 1 is an unpowered mine car, the maximum volume of the mine car 1 matches the load of the car 2, and the maximum volume of the mine car 1 is 100m ³ (220t).

As shown in Figures 1 and 2, when the mine car 1 is lifted to the top of the deep concave open pit by the winch 4, the ore is discharged into the receiving trough 3 of the crushing station through the cooperation of the mine car 1 and the curved rail 7. Described mine car is set as bottom unloading type hoisting mine car, side unloading type hoisting mine car, bottom side unloading type hoisting mine car. As shown in Figures 5, 6, and 7, taking the bottom-side unloading lifting mine car as an example, a horizontal and equal-length lug 13 is provided on both sides of the mine car 1, and a tipping floor is provided at the bottom of the mine car. 14. On both sides of the crushing and unloading station, there are bottom side unloading rollers 12 that are compatible with the ears 13 on both sides of the mine car (including height and width). The front and rear tracks of the crushing and unloading station are separated. The bottom side unloading curved track 7 that bottom plate 14 is adapted. When the mine car 1 passes through the crushing and unloading station, the mine car continues to run along the idler roller through the cooperation of the lug 13 and the bottom side unloading idler roller 12. Cooperate, dump bottom plate 14 through opening-opening increases gradually-opening maximum-opening dwindles gradually-opening closes the whole process, completes mine car unloading.

The coarse crusher is set to be a gyratory crusher, a jaw crusher, or a hammer crusher. The ore is crushed by the coarse crusher 8 and transported to the dressing plant or dump by belt conveyor. The present invention not only includes the crushing system, but also includes the slope lifting system of the deep concave open-pit mine, wherein the slope lifting system of the deep concave open-pit mine can be used in the semi-continuous mining system of the large deep concave open-pit mine, and the hourly processing capacity can reach 9000t/h, which is suitable for the largest double mine It is used in the slope lifting system of deep concave open-pit mine with a vehicle volume of 100m ³ (220t). It can be widely used in mining, metallurgy, coal, hydropower, building materials, chemical industry, port and wharf and other departments. It can transport a volume of 0.5-2.5t/ Various lumpy, granular and bulk materials of m ³ .

Claims (5)

1. A slope lifting and crushing system for a deep concave open-pit mine, including a track (10) laid on the top of the deep concave open-pit stope and on the slope, and a hoist (4) installed on the top of the deep concave open-pit stope, characterized in that A steel structure box girder (11) is combinedly installed on the slope of the concave open pit, the track (10) on the slope is laid on the steel structure box girder (11), and the mine car (1) is arranged on the track (10); The hoist (4) is connected to the mine car (1) through the sky wheel guide (5) and the wire rope group (6); a tipping platform (3) is provided on the deep working steps of the deep concave open-pit stope, and the mine car (1 ) On the deep working steps of the deep concave open pit, the ore is received on the tipping platform (3) through the car (2); on the top of the deep concave open pit and below the track, there is a crushing station receiving chute (8) And the coarse crusher (9), the mine car (1) is lifted to the top of the deep concave open pit by the hoist (4), and the ore is unloaded into the receiving trough (8) of the crushing station, and the ore is crushed by the coarse crusher (9) Finally, it is transported to the dressing plant or dump with a belt conveyor. 2. A slope lifting and crushing system for deep concave open-pit mines according to claim 1, characterized in that the tracks (10) are two groups, and each group of tracks has a mine car (1), two mining vehicles Car (1) does the counterweight of winch (4) mutually. 3. A slope lifting and crushing system for deep concave open-pit mines according to claim 1, characterized in that the mine car (1) is a non-powered mine car, and the maximum volume of the mine car (1) is the same as that of the car (2). matching load. 4. The slope lifting and crushing system of deep concave open-pit mine according to claim 1, characterized in that the mine car is set as a bottom-discharging lifting mine car or a side-discharging lifting mine car. 5. A slope lifting crushing system for a deep concave open-pit mine according to claim 1, characterized in that said coarse crusher is set as a gyratory crusher, a jaw crusher, or a hammer crusher.