CN106382127B - One species soil property coal working surface hydraulic support and seam mining means of defence - Google Patents
One species soil property coal working surface hydraulic support and seam mining means of defence Download PDFInfo
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- CN106382127B CN106382127B CN201611045408.6A CN201611045408A CN106382127B CN 106382127 B CN106382127 B CN 106382127B CN 201611045408 A CN201611045408 A CN 201611045408A CN 106382127 B CN106382127 B CN 106382127B
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- 239000003245 coal Substances 0.000 title claims abstract description 88
- 238000005065 mining Methods 0.000 title claims abstract description 22
- 239000002689 soil Substances 0.000 title claims description 5
- 239000000523 sample Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 5
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0427—Shield operating devices; Hinges therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
- E21D23/18—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms
- E21D23/24—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms the advancing mechanisms being separate from the supporting construction
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
本发明公开了一种类土质煤工作面液压支架及煤层开采防护方法，该液压支架包括支架底座、支架顶梁、支架立柱、推移千斤顶、护帮板、以及护帮板千斤顶，还包括前探顶梁和前探顶梁千斤顶，其中，所述前探顶梁位于所述支架顶梁的前方，由所述前探顶梁千斤顶控制伸缩，并且在支护作业时插入煤壁中。本发明针对类土质煤，利用前探顶梁为护帮板提供有效的工作空间，有利于液压支架护帮板的完全打开，充分地发挥液压支架的护板作用，进而提高煤壁的稳定性。
The invention discloses a hydraulic support for an earthy coal working face and a protection method for coal seam mining. The hydraulic support includes a support base, a support top beam, a support column, a pushing jack, a side protection board, and a side protection board jack, and a front probe top The beam and the jack beam jack, wherein the jack beam is located in front of the support beam, controlled by the jack beam jack stretching, and inserted into the coal wall during support operations. The present invention aims at soil-like coal, and utilizes the front-exploring top beam to provide an effective working space for the side guard, which is beneficial to the complete opening of the side guard of the hydraulic support, and fully exerts the role of the guard of the hydraulic support, thereby improving the stability of the coal wall .
Description
技术领域technical field
本发明涉及一种煤矿开采技术领域，尤其是涉及一种类土质煤工作面液压支架及煤层开采防护方法。The invention relates to the technical field of coal mining, in particular to a hydraulic support for an earthy coal working face and a protection method for coal seam mining.
背景技术Background technique
松软煤层强度低，结构性差，在长期特定的地质与力学条件下形成了与黄土相似的物理力学特征，这种破碎、松散的似土非土的煤体，为类土质煤。The soft coal seam has low strength and poor structure. Under long-term specific geological and mechanical conditions, it has formed physical and mechanical characteristics similar to loess. This kind of broken and loose coal body that resembles soil but not soil is soil-like coal.
类土质煤工作面采掘过程中煤壁易片帮失稳，煤壁的稳定性问题严重制约了类土质煤层的安全高效开采。煤层回采时，液压支架起到关键的支撑作用，选择合适的液压支架是防控煤壁片帮，提高煤体稳定性的前提。During the excavation process of soil-like coal working face, the coal wall is easy to be unstable, and the stability of the coal wall seriously restricts the safe and efficient mining of soil-like coal seams. When coal seam is mined, the hydraulic support plays a key supporting role. Selecting the appropriate hydraulic support is the prerequisite for preventing and controlling coal wall spalling and improving the stability of coal body.
现有的针对松软煤层工作面的液压支架虽然增加了护帮板，但在采煤机割煤后，新暴露的顶部极易冒落，冒落的煤岩体堆积在煤壁前方，减小了液压支架前方的空间，致使护帮板难以完全打开，支架的护帮性能得不到充分发挥，支护效果也不明显，无法最大限度的提高煤体稳定性。Although the existing hydraulic support for the working face of the soft coal seam has added a side guard, the newly exposed top is very easy to fall after the coal shearer cuts the coal, and the fallen coal rock mass is piled up in front of the coal wall, reducing the The space in front of the hydraulic support is blocked, which makes it difficult to fully open the side guard, the side guard performance of the support cannot be fully exerted, the support effect is not obvious, and the stability of the coal body cannot be improved to the maximum extent.
发明内容Contents of the invention
本发明的目的在于提供一种类土质煤工作面液压支架，以提高开采过程中煤壁的稳定性。The purpose of the present invention is to provide a kind of earthy coal working face hydraulic support to improve the stability of the coal wall during the mining process.
本发明的目的还在于提供一种类土质煤的煤层开采防护方法，以提高煤壁开采过程中煤壁的稳定性。The object of the present invention is also to provide a coal seam mining protection method for soil-like coal, so as to improve the stability of the coal wall during the coal wall mining process.
为此，本发明提供了一种类土质煤工作面液压支架，包括支架底座、支架顶梁、支架立柱、推移千斤顶、护帮板、以及护帮板千斤顶，还包括前探顶梁和前探顶梁千斤顶，其中，前探顶梁位于支架顶梁的前方，由前探顶梁千斤顶控制伸缩，并且在支护作业时插入煤壁中。For this reason, the present invention provides a kind of soil coal working face hydraulic support, including a support base, a support top beam, a support column, a moving jack, a side guard, and a side guard jack, and also includes a front probing beam and a front probing top Beam jacks, wherein the front probe beam is located in front of the bracket top beam, controlled by the front probe jack beam jack, and inserted into the coal wall during support operations.
进一步地，上述前探顶梁为铲型。Further, the above-mentioned front-exploring roof beam is shovel-shaped.
进一步地，上述前探顶梁千斤顶的一端与支架顶梁固定连接，另一端与前探顶梁固定连接。Further, one end of the above-mentioned front-exploration beam jack is fixedly connected to the bracket top beam, and the other end is fixedly connected to the front-exploration roof beam.
进一步地，上述护帮板千斤顶的一端与支架顶梁连接，另一端与护帮板相连接。Further, one end of the above-mentioned skirting board jack is connected to the support top beam, and the other end is connected to the skirting board.
进一步地，上述护帮板的连接端与支架顶梁铰接。Further, the connecting end of the above-mentioned side guard is hinged to the top beam of the bracket.
进一步地，上述前探顶梁和前探顶梁千斤顶的宽度小于支架顶梁的宽度。Further, the width of the above-mentioned front probe beam and the front probe beam jack is smaller than the width of the support beam.
进一步地，上述护帮板包括在工作时平行于作业面的护帮板体和位于钎探顶梁千斤顶左右两侧的连接杆，其中，连接杆包括与支架顶梁铰接的连接端。Further, the above-mentioned skirting board includes a skirting board body parallel to the working surface during operation and connecting rods located on the left and right sides of the drilling top beam jack, wherein the connecting rods include connecting ends hinged to the support top beam.
进一步地，上述护帮板的靠近前探顶梁底面的位置设有避让面，其中，避让面在护帮板支护作业时与煤壁之间形成避让空间。Further, an avoidance surface is provided at the position of the above-mentioned skirting board close to the bottom surface of the front penetrating roof beam, wherein the avoidance surface forms an avoidance space between the skirting board and the coal wall during the support operation.
进一步地，上述前探顶梁的底面为斜面，与水平面的夹角为5°～10°。Further, the bottom surface of the above-mentioned forward-looking roof beam is an inclined surface, and the included angle with the horizontal plane is 5°-10°.
根据本发明的另一方面，提供了一种类土质煤的煤层开采防护方法，使用根据上面所描述的类土质煤工作面液压支架，该防护方法包括以下步骤：在采煤机滚筒开采煤壁到达所述液压支架所在位置时，回收所述液压支架的前探顶梁和护帮板，进行割煤；割煤结束随后回收所述液压支架的支架立柱，利用刮板输送机和推移千斤顶牵引液压支架整体前移，随后升起所述支架立柱，支撑所述支架顶梁；开启前探顶梁千斤顶迫使所述前探顶梁插入煤壁，并且开启护帮板千斤顶打开护帮板；以及利用推移千斤顶推动刮板输送机和采煤机前移，等待下次开采。According to another aspect of the present invention, a coal seam mining protection method for soil-like coal is provided, using the above-described soil-like coal working face hydraulic support, the protection method includes the following steps: mining the coal wall with the shearer drum When arriving at the position of the hydraulic support, recover the front probe beam and side guard of the hydraulic support to cut coal; after the coal cutting is completed, recover the support column of the hydraulic support, and use the scraper conveyor and push jack to pull The hydraulic support moves forward as a whole, and then the support column is raised to support the support top beam; the front detection beam jack is turned on to force the front detection top beam to insert into the coal wall, and the side protection board jack is opened to open the side protection board; and Use the push jack to push the scraper conveyor and shearer forward, waiting for the next mining.
与已有技术相比，本发明有益效果体现在：本发明在支架顶梁前段、护帮板上方设计了前探顶梁，在采煤机割煤后，前探顶梁在前探顶梁千斤顶的推动下能够及时伸出支护新暴露的顶板，防止顶板冒落，保证了液压支架与煤壁间的空间，为护帮板提高有效的工作空间，有利于液压支架护帮板的完全打开，充分地发挥液压支架的护板作用，提高煤壁的稳定性。Compared with the prior art, the beneficial effect of the present invention is embodied in that: the present invention designs a front-exploration roof beam on the front section of the support roof beam and above the side guard, and after the shearer cuts coal, the front-exploration roof beam Under the push of the jack, it can extend and support the newly exposed roof in time to prevent the roof from falling, ensure the space between the hydraulic support and the coal wall, and improve the effective working space for the side guard, which is conducive to the completeness of the hydraulic support side guard. Open it to give full play to the role of the guard plate of the hydraulic support and improve the stability of the coal wall.
除了上面所描述的目的、特征和优点之外，本发明还有其它的目的、特征和优点。下面将参照图，对本发明作进一步详细的说明。In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. Hereinafter, the present invention will be described in further detail with reference to the drawings.
附图说明Description of drawings
构成本申请的一部分的说明书附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：The accompanying drawings constituting a part of the present application are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:
图1示出了根据本发明一实施例的类土质煤工作面液压支架的结构示意图；Fig. 1 shows a schematic structural view of a hydraulic support of a soil-like coal working face according to an embodiment of the present invention;
图2示出了根据本发明一实施例的类土质煤工作面液压支架的顶部结构；Fig. 2 shows the top structure of the hydraulic support of the soil-like coal working face according to an embodiment of the present invention;
图3示出了根据本发明一实施例的类土质煤工作面液压支架在回采工作面使用状态的示意图；Fig. 3 shows a schematic diagram of the use state of the soil-like coal working face hydraulic support in the mining face according to an embodiment of the present invention;
图4示出了根据本发明一实施例的类土质煤工作面液压支架的护帮板的结构示意图；以及Fig. 4 shows a schematic structural view of the side guard of the hydraulic support of the soil-like coal working face according to an embodiment of the present invention; and
图5示出了根据本发明一实施例的类土质煤的煤层开采防护方法的流程图。Fig. 5 shows a flowchart of a coal seam mining protection method for soil-like coal according to an embodiment of the present invention.
附图标记说明Explanation of reference signs
1、前探顶梁； 2、前探顶梁千斤顶；1. Front-exploration beam; 2. Front-exploration beam jack;
3、护帮板； 4、护帮板千斤顶；3. Backguard; 4. Backguard jack;
5、支架顶梁； 6、支架立柱；5. Support top beam; 6. Support column;
7、支架底座； 8、推移千斤顶；7. Support base; 8. Moving jack;
9、刮板输送机； 10、采煤机；9. Scraper conveyor; 10. Shearer;
11、采煤机滚筒； 12、煤壁；11. Shearer drum; 12. Coal wall;
31、护帮板体； 32、连接杆；31. Side guard body; 32. Connecting rod;
33、避让面； 1a、顶面；33. Avoidance surface; 1a. Top surface;
1b、底面。1b, the bottom surface.
具体实施方式detailed description
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本发明。It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
图1至图4示出了根据本发明的一些实施例。Figures 1 to 4 illustrate some embodiments according to the invention.
如图1和图3所示，类土质煤工作面液压支架包括支架底座7、支架顶梁5、支架立柱6、推移千斤顶8、护帮板3、以及护帮板千斤顶4，还包括前探顶梁1和前探顶梁千斤顶2，其中，前探顶梁1位于支架顶梁5的前方，由前探顶梁千斤顶2控制伸缩，并且在支护作业时用于插入煤壁中。As shown in Fig. 1 and Fig. 3, the hydraulic support of the soil-like coal working face includes a support base 7, a support top beam 5, a support column 6, a push jack 8, a side guard 3, and a side guard jack 4, and also includes a front probe The top beam 1 and the front-exploration top beam jack 2, wherein the front-exploration top beam 1 is located in front of the support top beam 5, controlled by the front-exploration top beam jack 2, and used for insertion into the coal wall during support operations.
其中，前探顶梁千斤顶2一端与支架顶梁5相连接，另一端与前探顶梁1相连接，前探顶梁千斤顶2伸出可推动前探顶梁1前移，护帮板千斤顶4的一端与支架顶梁5相连接，另一端与护帮板3相连接，护帮板千斤顶4伸出可打开护帮板3，支架立柱6位于支架顶梁5与支架底座7之间，支架立柱6用于支撑支架顶梁5，推移千斤顶8与支架底座7相连接。Among them, one end of the front beam jack 2 is connected with the support beam 5, and the other end is connected with the front beam 1, the extension of the front beam jack 2 can push the front beam 1 to move forward, and the side guard plate jack One end of 4 is connected with the support top beam 5, and the other end is connected with the side guard 3, the side guard jack 4 stretches out to open the side guard 3, the support column 6 is located between the support top beam 5 and the support base 7, The support column 6 is used to support the support top beam 5, and the moving jack 8 is connected with the support base 7.
本发明在支架顶梁前段、护帮板上方设计了前探顶梁，在采煤机割煤后，前探顶梁在前探顶梁千斤顶的推动下能够及时伸出支护新暴露的顶板，防止顶板冒落，保证了液压支架与煤壁间的空间，为护帮板提高有效的工作空间，有利于液压支架护帮板的完全打开，能够最大限度的发挥液压支架的护板作用，提高煤壁的稳定性。In the present invention, a front-exploration roof beam is designed on the front section of the support roof beam and above the side guard. After the coal shearer cuts coal, the front-exploration roof beam can extend out in time to support the newly exposed roof under the push of the front-exploration roof beam jack. , to prevent the roof from falling, to ensure the space between the hydraulic support and the coal wall, to improve the effective working space for the side guard, to facilitate the complete opening of the side guard of the hydraulic support, and to maximize the role of the guard of the hydraulic support. Improve the stability of the coal wall.
在一实施例中，如图2所示，前探顶梁1为铲型。优选地，前探顶梁1的顶面1a为水平面，底面1b为斜面，沿前探顶梁1的伸出方向，前探顶梁1的厚度由厚变薄，末端呈尖状。更优选地，前探顶梁的底面1b的斜角在5°-10°之间，例如6°。在本实施例中，前探顶梁的形状适合插入煤层中，所施加的外力小，仅对煤壁产生较小幅度的局部隆起或掉渣。In one embodiment, as shown in FIG. 2 , the front dome beam 1 is shovel-shaped. Preferably, the top surface 1a of the probe beam 1 is a horizontal plane, and the bottom surface 1b is an inclined plane. Along the protruding direction of the probe beam 1, the thickness of the probe beam 1 changes from thick to thin, and the end is pointed. More preferably, the inclination angle of the bottom surface 1b of the forward-looking roof beam is between 5°-10°, for example, 6°. In this embodiment, the shape of the protruding roof beam is suitable for being inserted into the coal seam, the applied external force is small, and only a small local uplift or slag is generated on the coal wall.
在一实施例中，如图1和图4所示，在护帮板的工作位置，护帮板3的顶部为避让面33，该避让面33相对于煤壁的垂直工作面外倾，以形成避让空间。在本实施例中，避让面的设置有利于护帮板的顺利打开。同时，该避让面33与前探顶梁1的底面(斜面)在功能上相互配合，避让煤壁局部隆起的部位，从而能够达到更好的支护效果。In one embodiment, as shown in Figure 1 and Figure 4, in the working position of the side guard, the top of the side guard 3 is an avoidance surface 33, and the avoidance surface 33 is outwardly inclined relative to the vertical working surface of the coal wall, so as to Create avoidance space. In this embodiment, the setting of the avoidance surface is conducive to the smooth opening of the side guard. Simultaneously, the avoidance surface 33 cooperates with the bottom surface (inclined surface) of the forward-looking roof beam 1 in function to avoid the part of the coal wall's local uplift, thereby achieving a better supporting effect.
在一实施例中，如图2所示，沿前探顶梁的伸出方向，前探顶梁1的宽度由宽变窄，末端呈尖状。在本实施例中，可进一步减少前探顶梁的插入阻力。In one embodiment, as shown in FIG. 2 , along the protruding direction of the protruding roof beam 1 , the width of the protruding roof beam 1 becomes narrower, and the end is pointed. In this embodiment, it is possible to further reduce the insertion resistance of the protruding beam.
在一实施例中，前探顶梁1和前探顶梁千斤顶2的宽度小于支架顶梁的宽度。在本实施例中，在支架顶梁的宽度范围内，前探顶梁千斤顶两侧可设置连接杆，用于连接护帮板。In one embodiment, the width of the front probe beam 1 and the front probe beam jack 2 is smaller than the width of the support beam. In this embodiment, within the width range of the support top beam, connecting rods may be provided on both sides of the front-exploration top beam jack for connecting the side guard.
在一实施例中，如图4所示，护帮板3包括在工作时平行于作业面的护帮板体31和位于前探顶梁千斤顶左右两侧的连接杆32，其中，连接杆32的连接端与支架顶梁5铰接。在本实施例中，有效合理地利用了前探顶梁千斤顶两侧的空间。在一变型实施例中，连接杆32与支架顶梁5固定连接，护帮板体31与连接杆32铰接。在本变型实施例中，连接杆32为固定件，在回收时，前探顶梁位于两侧的连接杆之间，对前探顶梁起到保护作用。In one embodiment, as shown in FIG. 4 , the side apron 3 includes a side apron body 31 parallel to the working surface during operation and connecting rods 32 located on the left and right sides of the front boom jack, wherein the connecting rods 32 The connecting end is hinged with the support top beam 5. In this embodiment, the space on both sides of the jack of the front boom is effectively and rationally used. In a modified embodiment, the connecting rod 32 is fixedly connected to the support top beam 5 , and the side guard body 31 is hinged to the connecting rod 32 . In this modified embodiment, the connecting rod 32 is a fixing part, and when it is recovered, the front probing beam is located between the connecting rods on both sides to protect the front probing beam.
如图5所示，类土质煤的煤层开采防护方法包括以下步骤：As shown in Figure 5, the coal seam mining protection method for soil-like coal includes the following steps:
S11、在采煤机滚筒开采煤壁到达所述液压支架所在位置时，回收所述液压支架的前探顶梁和护帮板，进行割煤；S11. When the shearer drum mines the coal wall and reaches the position of the hydraulic support, recover the front probe beam and side guard of the hydraulic support to cut coal;
S13、割煤结束后回收所述液压支架的支架立柱，利用刮板输送机和推移千斤顶牵引液压支架整体前移，随后升起所述支架立柱，支撑所述支架顶梁；S13. After the coal cutting is completed, recover the support column of the hydraulic support, use the scraper conveyor and the push jack to pull the hydraulic support to move forward as a whole, and then raise the support column to support the support top beam;
S15、开启前探顶梁千斤顶迫使所述前探顶梁插入煤壁，并且开启护帮板千斤顶打开护帮板；以及S15. Turn on the jack for the front boom to force the front boom to insert into the coal wall, and open the jack for the side guard to open the side guard; and
S17、利用推移千斤顶推动刮板输送机和采煤机前移，等待下次开采。S17. Utilize the moving jack to push the scraper conveyor and the shearer to move forward, waiting for the next mining.
根据本发明的煤层开采防护方法，采煤机滚筒11割煤结束后，回收支架立柱6，利用刮板输送机9和推移千斤顶8牵引支架整体前移，随后升起支架立柱6，支撑支架顶梁5，开启护帮板千斤顶4、促使前探顶梁插入煤壁，然后打开护帮板3，完全隔离新暴露的顶板达到防止冒顶的目的；最后利用推移千斤顶8推动刮板输送机9和采煤机10前移，完成一次采煤支护过程。According to the coal seam mining protection method of the present invention, after the shearer drum 11 completes the coal cutting, the support column 6 is recovered, the scraper conveyor 9 and the pushing jack 8 are used to pull the support to move forward as a whole, and then the support column 6 is raised to support the top of the support. Beam 5, open the side panel jack 4, prompt the front roof beam to insert into the coal wall, then open the side panel 3, completely isolate the newly exposed roof to prevent roof fall; finally use the push jack 8 to push the scraper conveyor 9 and The shearer 10 moves forward to complete a coal mining support process.
本发明充分发挥了液压支架的护帮和支护作用，防止开采过程中发生“片、冒、漏”等危害安全生产的事故，达到类土质煤工作面安全高效回采的目的。The invention gives full play to the protection and support functions of the hydraulic support, prevents accidents such as "slices, leaks, and leaks" that endanger production safety during the mining process, and achieves the purpose of safe and efficient mining of soil-like coal working faces.
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.
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| WO2018094657A1 (en) * | 2016-11-24 | 2018-05-31 | 安徽理工大学 | Hydraulic support for soil-like coal working face, and protection method for coal seam mining |
| CN109297737B (en) * | 2018-10-19 | 2023-10-17 | 安徽理工大学 | Simulation experiment device for fully-mechanized caving of coal mine |
| CN110671141A (en) * | 2019-10-28 | 2020-01-10 | 陕西开拓建筑科技有限公司 | Hydraulic support for separate mining and transportation mining of thin coal seam and mining method |
| CN114776289A (en) * | 2022-04-24 | 2022-07-22 | 河南理工大学 | Distributed coal cutting device for coal mining working face of coal mine |
| CN114837604B (en) * | 2022-05-25 | 2023-09-22 | 安徽理工大学 | A segmented grouting system and advanced grouting method for soft coal seam working faces |
| CN116411981A (en) * | 2023-03-28 | 2023-07-11 | 西安科技大学 | Roof caving protection device and method for large mining height fully mechanized mining face |
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