Unit for bestransportnye system development

 

(57) Abstract:

Unit for bestransportnye system development relates to the mining industry and can be used for open development of mineral deposits on bestransportnye system in difficult mining and geological conditions. The unit consists of downhole and moldboard running non platforms with poles connected between a load-bearing rope, and bilateral bucket. To expand the technological capabilities of the unit and increase its performance mast height downhole running platform 1.2 - 2.1 times less than the height of the mast moldboard running platform. Each mast is connected with the bucket by lifting and pulling the rope, Alabushevo corresponding block secured to the support rope and blocks are connected through communication. The bottom of the ladle is made V-shaped, and the angle between the planes forming the bottom, is 130 - 150°. 1 C.p. f-crystals, 4 Il.

The invention relates to the mining industry and can be used for open development of mineral deposits on bestransportnye system in difficult mining and geological conditions.

A known machine for excavation, sostoiavsheisia bilateral bucket [1]

The disadvantages of this machine are limited technological capabilities and low productivity due to the large weight of the chassis platforms on which are mounted the shafts of equal length, tilted in the direction opposite from the operating trench, and having a hinge connected buckets with traction rope, which it is impossible to make drawing and unloading breed anywhere on the way of transportation, to produce the ruffles steep slope of the escarpment; the drawing of the breed such buckets is associated with increased accumulation and freezing of the rock mass, and the drawing of the breed is accompanied by a low coefficient of filling of the bucket and increased cycle use.

Known unit for bestransportnye system design, including downhole and otvalnuyu chassis platform with the masts of different heights connected between a load-bearing rope, and bilateral bucket [2]

The disadvantages of this unit for bestransportnye system development is the limited technological capabilities and low productivity due to the large weight of the chassis platforms, rope, bucket and low mobility due to the absence of the optimum ratio of the heights of the United States between a chain fastened buckets with two pulling ropes and suspended from moving on the supporting rope trucks. At high specific pressure on the ground prevents the use of the unit in weaker rocks. There is no stock anywhere on the face along the length of transportation, ruffles steep slope of the escarpment. The conditions for the buildup and primerzanie rock mass. Not provided the ability to change the angle of introduction in the process of bailing and draws on the steep parts of the face. Due to the increased distance between the masts and moving on the traction rope two trucks increased consumption of rope.

When using the unit for bestransportnye system development requires gaining the Stripping slope of the ledge, which will require increasing the amount of Stripping operations and the increased cost of drilling and blasting operations.

The purpose of the invention, the reduction of the weight and size of the driving rotary platforms; reduce the distance between the masts driving position platform at the lowest possible distances from the mast to the top of the Stripping edge of the ledge and ledge rock dump; the creation of charms, and the design of the bucket, providing: drawing and unloading anywhere on the face along the length of transportation, the opportunity ruffles steep slope of the escarpment, reducing sticking and freezing of the constituent in the drawing; the possibility of operating the unit at steep angles of repose of Stripping ledge; the expansion of technological capabilities and improving the performance of the unit for bestransportnye system development.

In the proposed unit for bestransportnye system development: height of mast downhole running platform 1.2-2.1 times less than the height of the mast moldboard running platform; each mast is connected with the bucket hoisting and pulling the rope around the corresponding block secured to the support rope; the units are connected by means of connection; a ladle equipped with additional arch; the bottom of the ladle is made V-shaped, the angle between the planes forming the bottom, is 130-150aboutS; bucket bilateral actions, representing one-piece design; running rotary platform; a counterweight on the driving rotary platform for perception of overturning moment; the mast on the driving rotary platform.

Reducing the height of the mast downhole running platform 1.2-2.1 times compared to the height of the mast moldboard running platform reduces the weight and dimensions of the chassis platform, brings the mast to the top edge of the ledge, reduces the weight of the rope by reducing its length.

In weak rocks. Connection masts with bucket hoisting and pulling ropes attached to the support rope blocks, which are interconnected by communication, provides: drawing and unloading of the bucket anywhere on the face along the length of transportation, the opportunity ruffles steep slope of the escarpment and changing the angle of introduction at the drawing.

In the rock mass can be most efficiently excaberate and place in operating the trench, and also download the minerals of the vehicle, located at the bottom of the existing trench.

The angle of introduction at the drawing gives an opportunity to choose the most rational value of this angle for these species, as well as to increase the strength excavatum rocks. When frill steep slope of the escarpment increases work safety. The result is the possibility of operating the unit at steep angles of repose of Stripping ledge.

The proposed connection of the bucket with masts reduces the height of the mast downhole running platform, bringing it closer to the minimum possible distance to the top edge of the Stripping ledge. This is because secured to the supporting rope block with the frill of the slope of the ledge is located over vapalahti above the working deck Stripping ledge.

Bucket V-shape with an angle between the planes forming the bottom, equal 130-150aboutWith, in conjunction with the communication system bucket with masts provides: drawing and unloading of the bucket anywhere on the face along the length of transportation, the opportunity ruffles steep slope of the escarpment, the angle of introduction at the drawing.

In the rock mass can be most efficiently excaberate and place in the operating trench, upload minerals vehicle, located at the bottom of the operating trench, you can excaberate stronger breed, increased safety due to the ruffles of the slope of the escarpment. The slope of the ledge fleeced when moving the bucket from the bottom up, allowing you to develop significant efforts on the tip of the bucket teeth to separate the rocks from the surface of the slope, increasing the level of safety of the slope of the ledge.

Additionally, the ability to move the bucket when drawing in two opposite directions reduces the loss of mineral in the lower inner edge of the blade. The absence of rotating and moving parts in the places fill bucket mountain mass reduces sticking and namerzanie on the bucket.

Takiab technical result of the expansion of technological capabilities and performance of the unit.

In Fig. 1 shows an Assembly for bestransportnye development system of Fig. 2 bucket in the transport position of Fig. 3 is the same, in the process of bailing rock mass; Fig. 4 diagram of the position of the bucket when the frill of a slope Stripping ledge.

Unit for bestransportnye system development (Fig. 1) consists of face 1 and moldboard 2 chassis platforms with poles 3 and 4 of these platforms, which are located on the operational side of the trench 5. The mast 3 downhole running platform 1 is connected to the mast 4 moldboard running platform 2 bearing rope 6 downhole running platform 1 with fixed thereto unit 7 and the supporting rope 8 moldboard chassis platform with 2 secured to him by the unit 9. The blocks 7 and 9 are interconnected by a connection 10 (Fig. 2).

The bucket 11 is connected to the mast 3 downhole running platform 1 lifting and pulling rope 12 around the block 7 carrying a rope 6 downhole running platform 1, and with the mast 4 moldboard running platform 2 lifting and traction rope 13 around the block 9 carrying a rope 8 moldboard running platform 2.

The height of the mast 3 downhole running platform 1 is smaller than the height of the mast 4 moldboard running platform 2 1.2-2.1 times.

The range of values of the ratio of the height of the mast 4 and 3 moldboard Chille weight of these platforms, that gives the lowest specific ground pressure, the possibility of operation in weaker rocks, expanding the technological capabilities of the unit and the achievement of the technical result.

The specified limits (1.2 to 2.1 times) is set for the most common complex mining and geological conditions which provide for the operation of the unit. The scarp from 10 to 55 m Width of the processed Zachodni from 30 to 50 m bucket Capacity from 20 to 100 m3.

When defining the considered range (1.2 to 2.1 times) otvalnuyu running platform 2 was placed from the top inner edge of the blade 14 at a distance equal to the sum of the width of the prisms possible collapse and width of processed zagadki. Downhole running the platform was placed from the top of the Stripping edge of the ledge 15 by a distance equal only to the width of the prisms possible collapse. The distance from the upper edge of the inner blade 14 to block 9 during unloading of the bucket and from the top of the Stripping edge of the ledge 15 to block 7 at the frill top edge were made based on parameters of the bucket 11 in conjunction with his suspension.

Set forth the nature of the placement of the elements of the unit provides a reduction in the height of the mast 3 downhole running the s through zagadki and capacity of the bucket. With the lowest limit value of 1.2 corresponds to the height of the ledge 55 m, width working on Zachodni 30 m for all values of capacity of the bucket. The highest limit value of 2.1 corresponds to the height of the ledge 10 m, the width being mined Zachodni 60 m for all values of capacity of the bucket.

In the considered range (1.2 to 2.1 times) serviceability of the unit and the achievement of the technical result, when the masts minimum height corresponding to the mining and geological conditions.

Reducing the specified limit values less than 1.2 possible by increasing the height of the mast 3 downhole running platform 1. In this case, increasing the weight of the downhole running platform 1, which leads to an increase in specific ground pressure and eliminating the possibility of utilization of the unit in weaker rocks. As a result technical result is achieved by expanding the technological capabilities of the unit.

The reduction of the considered limit values (1,2-2,1) less than 1.2 possible and by reducing the height of the mast 4 moldboard running platform 2. In this case, there is a reduction of the height of the unloading of the bucket 11 to the desired value on the blade 14 and technically impossible. In the AG is of onesta not achieved.

The increase in the considered limit values (1,2-2,1) more than 2.1 possible by reducing the height of the mast 3 downhole running platform 1. In this case, there is a reduction of the distance between the working space of Stripping ledge 15 and the block 7 carrying a rope 6 downhole running platform 1 when the frill top of the Stripping edge of the ledge 15 of the desired value to the distance at which the frill top edge of the slope Stripping ledge becomes technically impossible. As a result, the unit becomes inoperative, and, as a consequence, the technical result-the expansion of technological capabilities is not achieved.

The increase in the considered limit values (1,2-2,1) more than 2.1 possible and by increasing the height of the mast 4 moldboard running platform 2. In this case, increasing the weight of the moldboard running platform 2, which leads to an increase in specific ground pressure and eliminating the possibility of utilization of the unit in weaker rocks. As a result technical result is achieved by expanding the technological capabilities of the unit.

The bottom of the ladle 11 is made V-shaped with the angle between the two halves of the bottom 17, equal 130-150about.

The range of values of the angle awl angle is 130aboutfor coherently-loose rocks 140aboutand for bulk 150about. For each species (cohesive, coherent-bulk and bulk) these angle values are optimal. When the deviation from the optimum value of the angle in one direction or another will be reduced filling of the bucket.

As a result, when the angle between the two halves of the bottom 17 within 130-150aboutis the most filling of the bucket 11 in the drawing, which increases the performance of the unit.

If the angle is more than 150aboutfor loose rocks and less than 130aboutfor cohesive rocks filling the bucket 11 in the drawing is reduced, which reduces the performance of the unit.

Unit for bestransportnye development system works as follows.

Downhole running platform 1 set for Stripping ledge 15 on the distance from the upper edge of this ledge, excluding the collapse of the ledge under the impact load from the downhole driving position platform 1. Otvalnuyu running platform 2 mounted on the inner blade 14 at a distance from the upper edge of the blade, excluding the collapse of the blade under load from pile driving platform 2.

Downhole moves is her inner edge of the blade 14. This excaberate blasted rock 18, moved and stored in a stockpile within the contour of 19-20-21.

Movement of the bearing 6 and 8 and lifting traction rope 12 and 13, the bucket 11 is lowered to the place of use of the breed. When the bucket 11 loose teeth down. Together with ropes down the blocks 7 and 9.

When installing the bucket 11 on the surface of the rocks and the movement of the bucket 11 in the process of bailing in the side face of the chassis platform 1 (Fig. 3) pull the hoisting-rope 12 downhole running platform 1. When moving the bucket 11 in the process of bailing in the side of the moldboard platform 2 pull the hoisting-rope 13 moldboard running platform 2.

After filling the bucket 11 rock by the action of carrying ropes 6 and 8 and lifting traction rope 12 and 13 loaded bucket 11 tear from use and move in the direction of the inner blade to the place of unloading.

When developing a reservoir of minerals after zacheciani bucket 11 unload the vehicle, located on the grounds of the formation of minerals.

When the frill of a slope Stripping step 15 (Fig. 4) ladle 11 is lowered to the bottom of the Stripping slope of the ledge 15 and the block 7 carrying a rope 6 downhole running naoborot the Stripping step 15 up by pulling lifting pulling rope 12 downhole running platform 1. The angle of introduction regulate lifting and traction rope 13 moldboard running rotary platform 2.

In the process of moving the bucket 11 is separated prone to falling rocks from the surface of the Stripping slope of the ledge 15, part of which is rolled down, and some remains in the ladle 11.

When doing Stripping on bestransportnye system design drawing of the breed is produced mainly by moving the bucket 11 in the direction of the moldboard running platform 2.

As a result, the portion of rock moves to the inner blade during use. This volume is 8-10% of the total volume of overburden, which increases the performance of the unit.

Mining the mineral, for example pologozalegajushchih coal seam, drawing produced by moving the bucket 11 to the face, and moldboard running non platforms 1 and 2. In the reduced loss of minerals in the lower inner edge of the blade 14.

1. UNIT FOR BESTRANSPORTNYE SYSTEM DESIGN, including downhole and otvalnuyu chassis platform with the masts of different heights, United bearing rope, and bilateral bucket, different ones and each mast is connected with the bucket by lifting and pulling the rope, the envelope of the corresponding block secured to the support rope and blocks are connected through communication.

2. Assembly under item 1, characterized in that the bottom of the ladle is made V-shaped and the angle between the planes forming the bottom, is 130 150o.

 

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