WO2016065906A1 - Ground material feeding system and feeding process for solid backfilling mining of coal mine - Google Patents
Ground material feeding system and feeding process for solid backfilling mining of coal mine Download PDFInfo
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- WO2016065906A1 WO2016065906A1 PCT/CN2015/081517 CN2015081517W WO2016065906A1 WO 2016065906 A1 WO2016065906 A1 WO 2016065906A1 CN 2015081517 W CN2015081517 W CN 2015081517W WO 2016065906 A1 WO2016065906 A1 WO 2016065906A1
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- 239000000463 material Substances 0.000 title claims abstract description 58
- 239000003245 coal Substances 0.000 title claims abstract description 37
- 238000005065 mining Methods 0.000 title claims abstract description 24
- 239000007787 solid Substances 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000011343 solid material Substances 0.000 claims abstract description 22
- 238000012216 screening Methods 0.000 claims abstract description 19
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 239000010881 fly ash Substances 0.000 claims description 44
- 229910052902 vermiculite Inorganic materials 0.000 claims description 14
- 239000010455 vermiculite Substances 0.000 claims description 14
- 235000019354 vermiculite Nutrition 0.000 claims description 14
- 239000000428 dust Substances 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 3
- 239000010883 coal ash Substances 0.000 claims 1
- 238000000151 deposition Methods 0.000 claims 1
- 239000011435 rock Substances 0.000 abstract description 5
- 238000003756 stirring Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract 4
- 239000010878 waste rock Substances 0.000 abstract 2
- 230000035611 feeding Effects 0.000 description 19
- 230000032258 transport Effects 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 9
- 239000002956 ash Substances 0.000 description 2
- 239000013590 bulk material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009510 drug design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/06—Filling-up mechanically
Definitions
- the invention relates to a ground material placing system and a process, in particular to a coal mine solid filling coal mining ground material placing system and process.
- Integrated mechanized solid material filling coal mining technology is to put solid materials into the working face through the ground placement system, and then fill the goaf to control the movement of the overlying strata in the stope, and finally achieve the control of mine pressure and surface subsidence. purpose. Therefore, the optimal design of the ground material placement system and process is one of the key steps in the successful implementation of the technology.
- the materials deposited on the ground for a long time affected by natural factors such as air wet adhesion, rainfall, wind blowing, etc., may stick to the belt conveyor; at the same time, the humidity will affect the mechanical properties of the filling material. , which in turn affects the filling effect.
- the granularity of the material to be placed is large. If it is directly put into the feed hole, it is easy to cause the plugging of the feed well; if the material storage space is insufficient, the underground charge can not be continuously supplied, which affects the normal production of the working face.
- the placement of solid materials in the feed well is non-visual. If there is no ground monitoring system to control the amount of feed, it will cause the feed well to block.
- the object of the present invention is to provide a solid filling coal mining ground material placing system and process with simple process, reasonable structure, high efficiency and low cost in view of the problems existing in the prior art.
- the coal mine solid filling coal mining ground material placing system of the invention comprises a ground material loading and unloading stacking system, a scraper conveyor, a material mixing mixer, a solid material crushing and screening machine connected with the material stirring mixer, and a solid material crushing sieve.
- a ground material loading and unloading stacking system a scraper conveyor, a material mixing mixer, a solid material crushing and screening machine connected with the material stirring mixer, and a solid material crushing sieve.
- a belt conveyor that is transported to the wellhead of the feeding well, and a feeding control system at the wellhead of the feeding well;
- the material loading and unloading and stacking system comprises a ground gangue, a transport vehicle for transporting meteorites in the ground gangue to the gangue dump, a solid material crushing and screening machine and a bulldozer disposed in the gangue yard, and a wellhead located at the feed well.
- the feeding control system includes a feeding control room, a belt scale, a screw conveyor and a dust remover.
- the mass ratio of the power plant vermiculite to fly ash is 1:0.4.
- the coal mine solid filling coal mining ground material placing system and technology, the material loading and unloading stacking system can effectively solve the problem that the filling material is susceptible to natural factors such as rainfall, and ensure the continuous supply of filling materials; before the vermiculite is put into the feeding port, the solid is used.
- the material crushing and screening system crushes the material to fill the requirements of the particle size of ⁇ 50mm to avoid plugging of the feed well; set the ground feeding control room at the feeding wellhead, control the feeding amount and mix the bulk material and the powdered material according to a certain ratio. After being placed into the feed well.
- the system and the process are reasonable and orderly, which can improve the working efficiency of the ground material placement, reduce the cost of the ground material placement, and provide timely and effective filling mining in the underground goaf area.
- Figure 1 is a plan view of a solid filling coal mining ground material placing system of the present invention.
- FIG. 2 is a cross-sectional view showing the solid-filled coal mining ground material placing system of the present invention.
- Figure 3 is a top plan view of Figure 2.
- the coal mine solid filling coal mining ground material placing system of the invention comprises a ground material loading and unloading stacking system and a scraping plate Conveyor, material mixing mixer, solid material crushing and screening machine 3 connected with material mixing mixer, solid material crushing and screening machine 3 is provided with a belt conveyor 4 conveyed to the wellhead 7 of the feeding well, and 7 feedings at the wellhead of the feeding well Control System;
- the material loading and unloading and stacking system comprises a ground gangue, a transport vehicle 9 for transporting meteorites in the ground gangue 1 to the gangue dumping site 2, a solid material crushing and screening machine 3 and a bulldozer 11 disposed in the gangue dumping site 2.
- the fly ash reserve 6 at the wellhead 7 of the feed well and the power ash pneumatic conveying pipe 5 connected to the fly ash reserve 6 are connected to the power plant fly ash silo 10;
- the feeding control system comprises a feeding control room 8, a belt scale, a screw conveyor, a dust collector, a power distribution room and an auxiliary building.
- the mineral solid filling coal mining ground material placing process of the invention comprises the following steps:
- the bulldozer in the rockfill yard 2 is pushed to the tail of the scraper conveyor by the bulldozer 11 and sent to the solid material crushing and screening machine 3 through the scraper conveyor for crushing, crushing the sieved vermiculite Transported to the feed wellhead 7 via the belt conveyor 4;
- the mass ratio of the meteorite and fly ash of the power plant is 1:0.4, and the crushed vermiculite and the power plant fly ash are controlled by the feed control system. The amount.
- the coal mine solid-filled coal mining ground material placement system includes: a ground gangue, a transport vehicle that transports meteorites in the ground gangue 1 to the gangue dumping site 2, and solids located in the gangue dumping site 2.
- the solid material crushing and screening machine 3 is provided with a belt conveyor 4 conveyed to the wellhead 7 of the feeding well; a feeding well composed of a feeding control room 8, a belt scale, a screw conveyor and a dust collector Feed control system at wellhead 7; scraper conveyor.
- the washing stone of the coal washing plant is transported to the rock warehouse 1 by the transfer tape machine;
- the bulldozer in the rockfill yard 2 is pushed to the tail of the scraper conveyor by the bulldozer 11 and transported to the crushing and screening machine 3 through the scraper conveyor for crushing and screening, and the crushed and sieved vermiculite Belt conveyor 4 transported to the feed wellhead (7); material ground transport system dispersion material transport and powder material transport, bulk material transport Belt conveyor is used for transportation, and screw conveyor is used for powder material transportation;
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Abstract
A ground material feeding system for solid backfilling mining of a coal mine comprises a ground material loading/unloading and stacking system, a scraper conveyor, a material stirring and mixing machine, and a solid material crushing and screening machine (3) connected to the material stirring and mixing machine, wherein a belt conveyor (4) for conveying materials to a feeding well opening (7) is arranged below the solid material crushing and screening machine, and a feeding control system is arranged at the feeding well opening. Also disclosed is a solid backfilling material feeding process, which comprises: transporting ground solid materials to a waste rock stacking field (2) by using a transportation vehicle (9), pushing waste rocks in the waste rock stacking field to the tail part of the scraper conveyor by using a bulldozer (11), conveying the waste rocks to the crushing and screening machine through the scraper conveyor, conveying the waste rocks to the feeding well opening through the belt conveyor after the waste rocks are crushed and screened, and controlling the materials to be fed from the feeding well opening by using a feeding control chamber. The system and process can improve the efficiency of ground material feeding, lower the cost of ground material feeding, and provide technical support for timely and effective backfilling and mining in an underground goaf.
Description
本发明涉及一种地面物料投放系统及工艺，尤其是煤矿固体充填采煤地面物料投放系统及工艺。The invention relates to a ground material placing system and a process, in particular to a coal mine solid filling coal mining ground material placing system and process.
我国“三下”(建筑下、铁路下、水体下)积压着大量的煤炭资源。目前仅统配煤矿的生产矿井“三下”压煤就达137.9亿t，其中建下94.68亿t，占总压煤量的69％。综合机械化固体物料充填采煤技术是充填开采技术的一项革命性技术，该技术自研发以来，已在我国10多个矿区的20多个工作面得到工业性推广，该技术在提高煤炭资源回收率、保护矿区建筑物、土地、水体和生态环境等方面具有突出的优势。综合机械化固体物料充填采煤技术是通过地面投放系统将固体物料投放、运输至工作面，然后充填入采空区内来控制采场上覆岩层的移动，最终达到控制矿压显现及地表沉陷的目的。因而，布置地面物料投放系统及工艺的优化设计是该技术成功实施的关键环节之一。China's "three down" (under construction, under the railway, under the water) has a large amount of coal resources. At present, only three production coal mines with coal mines have reached 13.79 billion tons of coal, of which 9.468 billion tons were built, accounting for 69% of the total coal pressure. Comprehensive mechanized solid material filling coal mining technology is a revolutionary technology for filling mining technology. Since its research and development, this technology has been industrially promoted in more than 20 working faces in more than 10 mining areas in China. This technology is improving coal resource recovery. It has outstanding advantages in terms of rate, protection of mine buildings, land, water bodies and ecological environment. Integrated mechanized solid material filling coal mining technology is to put solid materials into the working face through the ground placement system, and then fill the goaf to control the movement of the overlying strata in the stope, and finally achieve the control of mine pressure and surface subsidence. purpose. Therefore, the optimal design of the ground material placement system and process is one of the key steps in the successful implementation of the technology.
然而投放物料在地面堆积时间久，受空气湿粘结性度、降雨、风吹等自然因素影响，可能会粘结在带式输送机上；同时，湿度较大也会对充填材料力学性能造成影响，进而影响充填效果。另外，投放物料的粒度较大，如果直接投放进投料孔，易造成投料井堵塞；物料储备空间不足，将会造成井下充填料不能连续供应，影响工作面正常生产。固体物料在投料井中投放是非可视化的，若没有地面监控系统控制投料量，将会造成投料井堵仓。However, the materials deposited on the ground for a long time, affected by natural factors such as air wet adhesion, rainfall, wind blowing, etc., may stick to the belt conveyor; at the same time, the humidity will affect the mechanical properties of the filling material. , which in turn affects the filling effect. In addition, the granularity of the material to be placed is large. If it is directly put into the feed hole, it is easy to cause the plugging of the feed well; if the material storage space is insufficient, the underground charge can not be continuously supplied, which affects the normal production of the working face. The placement of solid materials in the feed well is non-visual. If there is no ground monitoring system to control the amount of feed, it will cause the feed well to block.
针对上述问题，合理设计一种科学、合理的煤矿固体充填采煤地面物料投放系统及工艺，是固体物料充填采煤的关键环节之一，具有重要的现实意义和广阔的应用前景。Aiming at the above problems, rational design of a scientific and reasonable coal mine solid filling coal mining ground material placement system and process is one of the key links of solid material filling coal mining, which has important practical significance and broad application prospects.
发明内容Summary of the invention
技术问题：本发明的目的是针对已有技术存在的问题，提供一种工艺简单、结构合理简便、效率高、成本低的固体充填采煤地面物料投放系统及工艺。Technical Problem: The object of the present invention is to provide a solid filling coal mining ground material placing system and process with simple process, reasonable structure, high efficiency and low cost in view of the problems existing in the prior art.
技术方案：本发明的煤矿固体充填采煤地面物料投放系统，包括地面物料装卸堆放系统、刮板输送机、物料搅拌混合机、与物料搅拌混合机相连的固体物料破碎筛分机，固体物料破碎筛分机下设有输送至投料井井口处的胶带输送机，投料井井口处投料控制系统；Technical solution: The coal mine solid filling coal mining ground material placing system of the invention comprises a ground material loading and unloading stacking system, a scraper conveyor, a material mixing mixer, a solid material crushing and screening machine connected with the material stirring mixer, and a solid material crushing sieve. Under the extension, there is a belt conveyor that is transported to the wellhead of the feeding well, and a feeding control system at the wellhead of the feeding well;
所述的物料装卸堆放系统包括地面矸石仓、将地面矸石仓内的矸石运送至矸石堆放场的运输车、设在矸石堆放场内的固体物料破碎筛分机和推土机、设在投料井井口处的
粉煤灰备用仓和与粉煤灰备用仓相连的电厂粉煤灰气力输送管，电厂粉煤灰气力输送管与电厂粉煤灰仓相连；The material loading and unloading and stacking system comprises a ground gangue, a transport vehicle for transporting meteorites in the ground gangue to the gangue dump, a solid material crushing and screening machine and a bulldozer disposed in the gangue yard, and a wellhead located at the feed well.
A fly ash reserve bin and a power plant fly ash pneumatic conveying pipe connected to the fly ash reserve bin, and the power plant fly ash pneumatic conveying pipe is connected with the power plant fly ash silo;
所述的投料控制系统包括投料控制室、皮带秤、螺旋输送机和除尘器。The feeding control system includes a feeding control room, a belt scale, a screw conveyor and a dust remover.
使用上述系统的矿固体充填采煤地面物料投放工艺，包括如下步骤：The use of the above-mentioned system for filling the coal mining ground material into the process includes the following steps:
a.用运输车将地面矸石仓内储存的矸石运输至矸石堆放场；a. Transport the meteorite stored in the ground shale warehouse to the meteorite dump yard with a transport vehicle;
b.根据井下充填需求量，用推土机将矸石堆放场内的矸石推至刮板输送机尾部，经刮板输送机送入固体物料破碎筛分机内进行破碎，破碎筛分后的矸石经带式输送机运输到投料井口；b. According to the demand of underground filling, push the meteorite in the meteorite stacking yard to the tail of the scraper conveyor, and send it into the solid material crushing and screening machine through the scraper conveyor to crush, crush the sieved vermiculite belt The conveyor is transported to the feed wellhead;
c.将电厂粉煤灰仓内的粉煤灰通过电厂粉煤灰气力输送管运输到粉煤灰备用仓内；c. transporting the fly ash in the fly ash silo of the power plant to the fly ash reserve through the power plant fly ash pneumatic conveying pipe;
d.向投料井口内投放按比例混合后的破碎矸石和电厂粉煤灰，通过投料控制系统控制投放破碎矸石和电厂粉煤灰的量。d. Putting the proportioned mixed crushed vermiculite and power plant fly ash into the feed wellhead, and controlling the amount of crushed vermiculite and power plant fly ash by the feed control system.
所述电厂矸石与粉煤灰的质量比为1:0.4。The mass ratio of the power plant vermiculite to fly ash is 1:0.4.
有益效果：本煤矿固体充填采煤地面物料投放系统及工艺，物料装卸堆放系统能够有效解决充填材料易受到降雨等自然因素影响的问题，保证充填物料连续供应；在矸石投入投料口之前，采用固体物料破碎筛分系统对物料进行破碎，使充填矸石≤50mm粒度的要求，以避免投料井堵塞；在投料井口设置地面投料控制室，控制投料量以及散体物料和粉末状物料按照一定的比例混合后投放至投料井内。本系统及工艺合理有序，能够提高地面物料投放的工作效率，降低地面物料投放的成本，为井下采空区内及时有效的充填开采提供保证。该系统及工艺为固体物料充填采煤技术解放“三下”压煤，提供了科学、合理的新途径，具有重大的科学与工程研究意义。Beneficial effect: The coal mine solid filling coal mining ground material placing system and technology, the material loading and unloading stacking system can effectively solve the problem that the filling material is susceptible to natural factors such as rainfall, and ensure the continuous supply of filling materials; before the vermiculite is put into the feeding port, the solid is used. The material crushing and screening system crushes the material to fill the requirements of the particle size of 矸50mm to avoid plugging of the feed well; set the ground feeding control room at the feeding wellhead, control the feeding amount and mix the bulk material and the powdered material according to a certain ratio. After being placed into the feed well. The system and the process are reasonable and orderly, which can improve the working efficiency of the ground material placement, reduce the cost of the ground material placement, and provide timely and effective filling mining in the underground goaf area. The system and process for the solid material filling coal mining technology to liberate the "three down" coal, providing a scientific and reasonable new approach, with significant scientific and engineering research significance.
图1是本发明的固体充填采煤地面物料投放系统平面图。BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a plan view of a solid filling coal mining ground material placing system of the present invention.
图2是本发明的固体充填采煤地面物料投放系统剖面图。2 is a cross-sectional view showing the solid-filled coal mining ground material placing system of the present invention.
图3是图2的俯视结构示意图。Figure 3 is a top plan view of Figure 2.
图中：1-矸石仓，2-矸石堆放场，3-矸石破碎筛分机，4-胶带输送机，5-电厂粉煤灰气力输送管，6-粉煤灰备用仓，7-投料井口，8-投料控制室，9-运输车，10-电厂粉煤灰仓，11-推土机。In the picture: 1-矸石仓, 2-矸石堆场, 3-矸石碎筛机, 4-belt conveyor, 5-power plant fly ash pneumatic conveying pipe, 6-fly ash alternate bin, 7-feeding wellhead, 8-feed control room, 9-transporter, 10-power plant fly ash silo, 11-bulldozer.
下面结合附图对本发明的一个实施例作进一步的描述：An embodiment of the present invention will be further described below with reference to the accompanying drawings:
本发明的煤矿固体充填采煤地面物料投放系统，包括地面物料装卸堆放系统、刮板
输送机、物料搅拌混合机、与物料搅拌混合机相连的固体物料破碎筛分机3，固体物料破碎筛分机3下设有输送至投料井井口7处的胶带输送机4，投料井井口7处投料控制系统；The coal mine solid filling coal mining ground material placing system of the invention comprises a ground material loading and unloading stacking system and a scraping plate
Conveyor, material mixing mixer, solid material crushing and screening machine 3 connected with material mixing mixer, solid material crushing and screening machine 3 is provided with a belt conveyor 4 conveyed to the wellhead 7 of the feeding well, and 7 feedings at the wellhead of the feeding well Control System;
所述的物料装卸堆放系统包括地面矸石仓1、将地面矸石仓1内的矸石运送至矸石堆放场2的运输车9、设在矸石堆放场2内的固体物料破碎筛分机3和推土机11、设在投料井井口7处的粉煤灰备用仓6和与粉煤灰备用仓6相连的电厂粉煤灰气力输送管5，电厂粉煤灰气力输送管5与电厂粉煤灰仓10相连；The material loading and unloading and stacking system comprises a ground gangue, a transport vehicle 9 for transporting meteorites in the ground gangue 1 to the gangue dumping site 2, a solid material crushing and screening machine 3 and a bulldozer 11 disposed in the gangue dumping site 2. The fly ash reserve 6 at the wellhead 7 of the feed well and the power ash pneumatic conveying pipe 5 connected to the fly ash reserve 6 are connected to the power plant fly ash silo 10;
所述的投料控制系统包括投料控制室8、皮带秤、螺旋输送机、除尘器、配电室及附属厂房。The feeding control system comprises a feeding control room 8, a belt scale, a screw conveyor, a dust collector, a power distribution room and an auxiliary building.
本发明的矿固体充填采煤地面物料投放工艺，包括如下步骤：The mineral solid filling coal mining ground material placing process of the invention comprises the following steps:
a.用运输车9将地面矸石仓1内储存的矸石运输至矸石堆放场2；a. transporting the meteorite stored in the ground gangue 1 to the gangue dump 2 with the transport vehicle 9;
b.根据井下充填需求量，用推土机11将矸石堆放场2内的矸石推至刮板输送机尾部，经刮板输送机送入固体物料破碎筛分机3内进行破碎，破碎筛分后的矸石经带式输送机4运输到投料井口7；b. According to the demand for underground filling, the bulldozer in the rockfill yard 2 is pushed to the tail of the scraper conveyor by the bulldozer 11 and sent to the solid material crushing and screening machine 3 through the scraper conveyor for crushing, crushing the sieved vermiculite Transported to the feed wellhead 7 via the belt conveyor 4;
c.将电厂粉煤灰仓10内的粉煤灰通过电厂粉煤灰气力输送管5运输到粉煤灰备用仓6内；c. transporting the fly ash in the power plant fly ash silo 10 to the fly ash reserve bin 6 through the power plant fly ash pneumatic conveying pipe 5;
d.向投料井口7内投放按比例混合后的破碎矸石和电厂粉煤灰，所述电厂矸石与粉煤灰的质量比为1:0.4，通过投料控制系统控制投放破碎矸石和电厂粉煤灰的量。d. Putting the proportioned mixed crushed vermiculite and power plant fly ash into the feed wellhead 7, the mass ratio of the meteorite and fly ash of the power plant is 1:0.4, and the crushed vermiculite and the power plant fly ash are controlled by the feed control system. The amount.
如图1所示，煤矿固体充填采煤地面物料投放系统包括：地面矸石仓1、将地面矸石仓1内的矸石运送至矸石堆放场2的运输车9、设在矸石堆放场2内的固体物料破碎筛分机3和推土机11、设在投料井井口7处的粉煤灰备用仓6和与粉煤灰备用仓6相连的电厂粉煤灰气力输送管5，电厂粉煤灰气力输送管5与电厂粉煤灰仓10；固体物料破碎筛分机3下设有输送至投料井井口7处的胶带输送机4；由投料控制室8、皮带秤、螺旋输送机和除尘器等组成的投料井井口7处的投料控制系统；刮板输送机。As shown in Figure 1, the coal mine solid-filled coal mining ground material placement system includes: a ground gangue, a transport vehicle that transports meteorites in the ground gangue 1 to the gangue dumping site 2, and solids located in the gangue dumping site 2. Material crushing and screening machine 3 and bulldozer 11, floc ash storage bin 6 located at the wellhead 7 of the feeding well, power plant fly ash pneumatic conveying pipe 5 connected to the fly ash auxiliary bin 6, power plant fly ash pneumatic conveying pipe 5 And the power plant fly ash silo 10; the solid material crushing and screening machine 3 is provided with a belt conveyor 4 conveyed to the wellhead 7 of the feeding well; a feeding well composed of a feeding control room 8, a belt scale, a screw conveyor and a dust collector Feed control system at wellhead 7; scraper conveyor.
如图2所示，煤矿固体充填采煤地面物料投放工艺流程为：As shown in Figure 2, the process flow for coal mine solid-filled coal mining ground materials is as follows:
a.洗煤厂的洗选矸石经转运胶带机运输至矸石仓1储存；a. The washing stone of the coal washing plant is transported to the rock warehouse 1 by the transfer tape machine;
b.利用运输车9运输方式将矸石仓1的矸石运至矸石堆放场2；b. transporting the meteorite of the limestone silo 1 to the meteorite dumping site 2 by means of the transport vehicle 9;
c.根据井下充填需求，用推土机11将矸石堆放场2内的矸石推至刮板输送机尾部，经刮板输送机运至破碎、筛分机3进行破碎筛分，破碎筛分后的矸石经带式输送机4运输到投料井口(7)；物料地面运输系统分散体物料运输和粉末状物料运输，散体物料运
输采用带式输送机，粉末状物料运输采用螺旋输送机；c. According to the requirement of underground filling, the bulldozer in the rockfill yard 2 is pushed to the tail of the scraper conveyor by the bulldozer 11 and transported to the crushing and screening machine 3 through the scraper conveyor for crushing and screening, and the crushed and sieved vermiculite Belt conveyor 4 transported to the feed wellhead (7); material ground transport system dispersion material transport and powder material transport, bulk material transport
Belt conveyor is used for transportation, and screw conveyor is used for powder material transportation;
d.通过电厂粉煤灰气力输送管5将电厂粉煤灰运输到粉煤灰备用仓6内；d. transport the power plant fly ash to the fly ash reserve bin 6 through the power plant fly ash pneumatic conveying pipe 5;
e.通过料控制室8控制矸石物料和粉煤灰物料自动混合后从投料井7上口投放。
e. Control the vermiculite material and the fly ash material to be automatically mixed through the material control room 8 and then put it from the upper end of the feeding well 7.
Claims (3)
- 一种煤矿固体充填采煤地面物料投放系统，其特征在于：它包括地面物料装卸堆放系统、刮板输送机、物料搅拌混合机、与物料搅拌混合机相连的固体物料破碎筛分机(3)，固体物料破碎筛分机(3)下设有输送至投料井井口(7)处的胶带输送机(4)，投料井井口(7)处投料控制系统；Coal mine solid filling coal mining ground material placing system, characterized in that it comprises a ground material loading and unloading stacking system, a scraper conveyor, a material mixing mixer, and a solid material crushing and screening machine (3) connected with a material mixing mixer, The solid material crushing and screening machine (3) is provided with a belt conveyor (4) conveyed to the wellhead (7) of the feeding well, and a feeding control system at the wellhead (7) of the feeding well;所述的物料装卸堆放系统包括地面矸石仓(1)、将地面矸石仓(1)内的矸石运送至矸石堆放场(2)的运输车(9)、设在矸石堆放场(2)内的固体物料破碎筛分机(3)和推土机(11)、设在投料井井口(7)处的粉煤灰备用仓(6)和与粉煤灰备用仓(6)相连的电厂粉煤灰气力输送管(5)，电厂粉煤灰气力输送管(5)与电厂粉煤灰仓(10)相连；The material loading and unloading stacking system comprises a ground gangue (1), a transport vehicle (9) for transporting meteorites in the ground gangue (1) to the gangue dumping site (2), and a locust storage yard (2). Solid material crushing and screening machine (3) and bulldozer (11), fly ash reserve bin (6) located at the wellhead (7) of the feed well, and power plant fly ash pneumatic conveying connected with the fly ash reserve (6) Tube (5), power plant fly ash pneumatic conveying pipe (5) is connected with power plant fly ash silo (10);所述的投料控制系统包括投料控制室(8)、皮带秤、螺旋输送机和除尘器。The feeding control system includes a feeding control room (8), a belt scale, a screw conveyor and a dust remover.
- 一种使用权利要求1所述系统的矿固体充填采煤地面物料投放工艺，其特征在于，包括如下步骤：A process for depositing a coal mine ground material using the system of claim 1 is characterized in that it comprises the following steps:a.用运输车(9)将地面矸石仓(1)内储存的矸石运输至矸石堆放场(2)；a. Transport the meteorite stored in the ground gangue (1) to the meteorite dump (2) with the transport vehicle (9);b.根据井下充填需求量，用推土机(11)将矸石堆放场(2)内的矸石推至刮板输送机尾部，经刮板输送机送入固体物料破碎筛分机(3)内进行破碎，破碎筛分后的矸石经带式输送机(4)运输到投料井口(7)；b. According to the demand for underground filling, use the bulldozer (11) to push the meteorite in the meteorite stacking field (2) to the tail of the scraper conveyor, and send it into the solid material crushing and screening machine (3) through the scraper conveyor for crushing. The crushed and sieved vermiculite is transported to the feed wellhead (7) via a belt conveyor (4);c.将电厂粉煤灰仓(10)内的粉煤灰通过电厂粉煤灰气力输送管(5)运输到粉煤灰备用仓(6)内；c. transport the fly ash in the coal ash silo (10) of the power plant to the fly ash reserve (6) through the power plant fly ash pneumatic conveying pipe (5);d.向投料井口(7)内投放按比例混合后的破碎矸石和电厂粉煤灰，通过投料控制系统控制投放破碎矸石和电厂粉煤灰的量。d. Putting the proportioned mixed crushed vermiculite and power plant fly ash into the feed wellhead (7), and controlling the amount of crushed vermiculite and power plant fly ash by the feed control system.
- 根据权利要求2所述系统的矿固体充填采煤地面物料投放工艺，其特征在于：所述电厂矸石与粉煤灰的质量比为1:0.4。 The mine solid-filled coal mining ground material placing process according to the system of claim 2, wherein the mass ratio of the power plant vermiculite to the fly ash is 1:0.4.
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