CN104790956A

CN104790956A - Remote control heading machine tunnel type or fully-mechanized top coal exploitation end slope coal technology

Info

Publication number: CN104790956A
Application number: CN201510109853.3A
Authority: CN
Inventors: 余绍泽; 梁正召; 尹升华; 闫作厚; 王立新; 卫星; 杨志军; 肖鑫
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-03-13
Filing date: 2015-03-13
Publication date: 2015-07-22
Anticipated expiration: 2035-03-13
Also published as: CN104790956B

Abstract

A remote control heading machine tunnel type or fully-mechanized top coal exploitation end slope coal technology is mainly used in exploitation of resources under opencast coal mine slope. A figure shown in the invention is an end slope coal exploitation mode carried out through cooperation of a tunnel type remote control heading machine tilting to an inner dumping site direction and tape transportation. An end slope coal seam exploitation technology of local occurrence is characterized in that tunnel exploitation end slope coal vertical or obliquely crossed to the slope is unexploited, a coal pillar with proper width is residual in the middle, and the shielding and supporting effect of the inner dumping site on the slope is used to rapidly exploit the end slope coal before internal discharge of the inner dumping site; an exploitation device is a composed of a remote control or line control heading machine and a tape transporter, and the remote control or line control heading machine cooperates with the tape transporter to realize unmanned exploitation; waste stones at the top of the step of the inner dumping site in the opencast coal mine are used to fill under necessary conditions; and a full mechanizing technology is adopted to exploit continuous large-occurrence end slope or non-working slope coal seam, favorable conditions of the developing transport system of the opencast coal mine are utilized, and an end slope fully mechanized exploitation system is arranged under the slops to exploit the end slope coal.

Description

Remote control roadway formula or mining exploitation end side coal technique

Technical field

Remote control development machine lane formula, mining exploitation end side coal technique, the exploitation of resource is covered under being mainly used in Slope of Open Pit Coal Mine, be exactly in the process of exploiting in the open, exploit the resource under Slope of Open Pit Coal Mine simultaneously, these part resource reserves are huge, there is no effective ways so far in internal dumping, arrange front extraction.

Background technology

At coal industry, resource recovery is generally on the low side, the mine of pit mining, and resource recovery only has 45%, and small-sized non-governmental well industrial and mineral only has about 15-20%.Resource recovery rate in open pit boundary is about 95%, if but the Resources calculation covered under the residual ore deposit of Opent-pit limit periphery and side slope interior, the resource recovery rate great majority of open coal mine, below 75%, have the resource of about 25% not reclaim nearly.There are 4671.4 ten thousand t shale oil fields in such as ore deposit, Fuxin in exploration context, in the boundary vertical range of opencut earth's surface, Resource/Reserves is 4664.87 ten thousand t, cover stock number 1285.5 ten thousand t under the side of limit, in pit limits, have the shale oil field of 27.6% to be covered by side slope.

Be suitable for the gentle dip of interior row or horizontal opencut especially, carry out hole In-pit dumping gradually when exploitation reaches the end, hole, end wall life period is short, reduces until disappear highly gradually, if the resource covered under extraction side slope not in time and the residual ore deposit of periphery, will cause permanent loss.

Summary of the invention

One, to locally composing the end side seam mining technique of depositing

1. utilize remote control or line traffic control development machine and adhesive tape conveyor to match and carry out holding the unmanned exploitation helping coal.In recovery process, personnel are not needed to enter, the system that operating personnel are combined by Remote and video system, operation development machine cuts up and down to coal seam, the coal of cutting and crushing and then the adhesive tape conveyor being transported to rear extension are transported in open-air pit, then are transported to outside open-air pit by outdoor truck.

2, vertical or to internal dumping oblique mode is adopted to arrange tunnel exploitation end side coal.According to stability and the engineering geological conditions of side slope, between tunnel, be installed with conventional coal column, then stay every 10-20 conventional coal column and establish a ultra-wide coal column, to prevent collapsing or the reaction of collapsing of interlock type of side slope.

3. utilize the barren rock at Waste Dump inside Open Pit Mine top to carry out filling to excavating lane, to reduce the impact on Open pit slope stability.In opencut, row's step barren rock has grain composition well, and lumpiness is little, is suitable for the feature of filling.Particularly to high seam, adopt the mode slicing and filling of successively filling from the bottom up, farthest can help coal by production end.

Two, larger end side is deposited or non working slope coal seam adopts fully mechanized mining to exploit to composing continuously

1. utilize the development haulage system of opencut, under side slope, during exploitation, just arrange that end side fully-mechnized mining system carries out holding the exploitation of side coal in the open.Carry out the laying of haulage gate, air return way and work plane in the open during exploitation in good time.In end side coal mining technological work line length at about 1000m, bury complete location at internal dumping, call in when the development haulage system of opencut can utilize to combine in good time and adopt machine exploitation.

In exploitation spatial order, exploit multiple seam, the principle followed from top to bottom is carried out.

Accompanying drawing explanation

Fig. 1 is the sectional drawing of Inner Mongol open coal mine, and this open coal mine has 2 layers of minable coal seam, and 5 coals are the superiors' coal, and average thickness is 3m; 6 coals are most high seam, and average thickness is 22m.The mean depth of this opencut is about 90m, in the open under side slope and periphery, also has a large amount of coal seams not yet to exploit utilization.

Fig. 2 is the end slope laneway formula exploitation figure to 5 coals, adopts the laneway type perpendicular to side slope step to exploit, and leaves coal column in the middle of tunnel, also needs the ultra-wide coal column establishing a 10m-20m wide every 10-20 conventional coal column.In order to ensure the safety of side slope, waste fill can also be carried out to excavating lane.

Fig. 3 is for exploiting to internal dumping direction inclination certain angle mode in end side exploitation tunnel, and can reduce the disturbance to end wall like this, exploit under the shielding of internal dumping, the safety of side slope is higher, and end slope laneway is also safer.

Fig. 4 is the mining type in thick end side coal seam, forms interior row's small stair, be divided into mining area and ore pillar two parts to facilitate on high seam by internal dumping, at mining area's layer-by-layer mining from the bottom up, adopt one deck filling one deck, waste fill layer carries out the exploitation of last layer, successively upwards carry out.

Fig. 5 is the mining mining type in continuous coal seam.Along with the propelling of opencut, carry out the digging transporting coal crossheading and air return way simultaneously, wait for that face length reaches about 1000m, refuse dump is buried end side just can to call in when length also reaches about 1000m and is comprehensively adopted machine exploitation, the coal of extraction is directly transported to the end, hole with adhesive tape, then is transported out outside hole by haulage truck.

Detailed description of the invention

When opencast mining is to descending most coal seam, namely exploitation is to the most next level, just can carry out the exploitation of holding side coal.

First will in conjunction with the production program of opencut, unified carrying out holds the exploitation of side coal to plan, then in conjunction with the engineering geological conditions of opencut and the stability state of side slope, carries out planning and designing to the exploitation of multilayer end side coal.To continuous print coal seam, adopting and combining the mode of adopting exploitation is most reasonable manner, has safety, productivity ratio is high and reclaim the large feature of coal amount, consider air return way, haulage gate laying and combine the determination etc. of time of adopting.

To locally composing the coal seam of depositing, the size of conventional coal column and permanent pillar size and the position relationship of internal dumping and the exploitation of end side be considered.Particularly to consider that the exploitation of end side can not affect the stability of open-pit slope, the normal production of opencut can not be affected, under the condition of necessity, also will consider to adopt internal dumping barren rock to carry out filling, to ensure the stability of side slope.In order to farthest reduce the impact of opposite end side slope stability, in conjunction with the shielding supporting role of internal dumping to side slope, end side exploitation tunnel adopts lays to the mode of internal dumping inclination certain angle, farthest can reduce the possibility that side slope sinks to destroying like this.

In the recovery process carrying out end wall, be maximum on the impact of side slope foot, be easy to cause partial collapse to cause the accident, therefore will carry out the aggregate measures such as disposal of dangerous rock, erection shielding steel canopy to end wall and carry out security protection.

In process of production, owing to carrying out automated mining, personnel can not enter tunnel, therefore require that equipment is before entering tunnel, will carry out meticulous maintenance overhaul to equipment, guarantee that equipment does not occur any fault in tunnel.Next to prevent when local sillar drops and pounds on adhesive tape or remote control development machine, there is powerful capstan winch to pull equipment in outside, the sillar on adhesive tape and development machine and its top is withdrawn from. reenter tunnel after cleaning out again and exploit.

Claims

1. cover the recovery exploitation of coal resources or the remaining resource of periphery under being applicable to level or semi-steep open-pit slope, concrete patent right is as follows:

To locally composing the coal seam of depositing

1. utilize remote control or line traffic control development machine and adhesive tape conveyor to match and carry out holding the unmanned exploitation helping coal.

2, vertical or to internal dumping oblique mode is adopted to arrange tunnel exploitation end side coal.

3. adopt the mode of waste fill to carry out filling to excavating lane.For high seam, adopt the mode separate zone production of successively filling from the bottom up, to control stability and the sedimentation of side slope, production end side coal, reduces staying of coal column and establishes thickness to greatest extent.

The larger end side of area or non working slope coal seam is deposited to composing continuously

4, end side coal and the collaborative exploitation of opencut collaborative design, adopts side coal in mining production practice opposite end to exploit.

5, the construction of haulage gate, air return way and work plane is carried out in the open while exploiting.At workline length at about 1000m, internal dumping bury complete end side coal location, then call in combine adopt machine exploitation.

6, in exploitation spatial order, to mutil-coal seam mining, the principle followed from top to bottom carries out end side coal mining.