CN211081969U - Goaf longitude and latitude-shaped filling system - Google Patents
Goaf longitude and latitude-shaped filling system Download PDFInfo
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- CN211081969U CN211081969U CN201922113279.5U CN201922113279U CN211081969U CN 211081969 U CN211081969 U CN 211081969U CN 201922113279 U CN201922113279 U CN 201922113279U CN 211081969 U CN211081969 U CN 211081969U
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Abstract
The utility model provides a longitude and latitude filling system of a goaf, which relates to the technical field of underground filling mining, and comprises a waste rock paste delivery pipe, a stirrer, a filling pump, a hydraulic support and a trend filling pipe, the waste rock paste conveying pipe is arranged in a transport roadway, a stirrer and a filling pump are connected with the paste conveying pipe in the transport roadway, the filling pump is connected with the trend filling pipe through the paste conveying pipe, the trend filling pipe behind a hydraulic support of a working face is arranged along the trend of the working face, the trend filling pipe behind the hydraulic support is arranged along the trend of the working face, the trend filling pipe and the trend filling pipe are arranged at intervals, the trend baffles are arranged on two sides of the trend filling pipe in parallel, and the wood piles are arranged along the trend baffles and the trend baffles; the filling system can be pushed along with a working surface to conveniently construct a longitude and latitude filling body and control the subsidence of the earth surface.
Description
Technical Field
The utility model belongs to the technical field of the underground filling mining technique and specifically relates to a goaf longitude and latitude form filling system.
Background
Along with the rapid development of economy, the demand of coal resources is also rapidly increased, and the problem of coal pressing under three times is more and more prominent in the mining process of the coal resources, but the corresponding solution of the problem is relatively limited. The traditional coal mining mode can cause great damage influence on the mining area environment, the problem of three mining processes must be solved for protecting the environment, and the processing of the goaf is the most important link. The goaf is the goaf left below the earth surface after the coal mine is mined, the goaf can cause damage such as earth surface collapse if not treated, the earth surface collapse can cause the problems of underground water exhaustion, road, building and cultivated land destruction, ecological environment deterioration and the like, and even can bring serious threat to life and property safety of coal mine workers and residents above the goaf. The goaf treatment method includes a total caving method, a filling method, a coal pillar supporting method and the like.
The caving method is adopted to treat the dead zone, which causes the surface subsidence to cause environmental problems; the coal pillar support method will cause the loss of coal resources; therefore, the goaf treatment by adopting the filling method is the most effective method, but the investment of the existing filling system and filling equipment is large, the construction efficiency is low, and the requirement of mining continuation cannot be met. In order to fully recover coal resources, improve the mining efficiency, and achieve the purposes of preventing surface subsidence, protecting surface buildings and protecting the environment, an efficient filling system which is simple and convenient to construct and low in cost is needed.
SUMMERY OF THE UTILITY MODEL
In order to control the surface subsidence, make things convenient for the efficient longitude and latitude form obturator of being under construction, the utility model provides a collecting space area longitude and latitude form filling system, concrete technical scheme is as follows.
A longitude and latitude-shaped filling system for a goaf comprises a waste rock paste delivery pipe, a stirrer, a filling pump, a hydraulic support, a trend filling pipe, an inclination filling pipe, a timber pile, a trend baffle and an inclination baffle; the waste rock paste conveying pipe is arranged in the transportation roadway, the stirrer is connected with the filling pump through the paste conveying pipe, and the filling pump is connected with the trend filling pipe and the trend filling pipe through the paste conveying pipe; the trend filling pipe behind the hydraulic support is arranged along the trend of the working surface, and the trend filling pipe are arranged at intervals; the two sides of the trend filling pipe are provided with trend baffles in parallel, and the two sides of the trend filling pipe are provided with trend baffles in parallel; and wood piles are arranged along the trend baffle and the inclination baffle.
Preferably, the trend baffles and the inclined baffles are arranged between the top plate and the bottom plate, the width between the parallel trend baffles on two sides of the trend filling pipe is 1-5m, and the width between the parallel trend baffles on two sides of the inclined filling pipe is 1-5 m.
Preferably, the trend filling pipe is arranged at the upper part of the trend filling space enclosed by the parallel trend baffles, and the trend filling pipe is arranged at the upper part of the trend filling space enclosed by the parallel trend baffles.
It is also preferred that the distance between the axes of the walking direction filling spaces is less than or equal to the periodic tread steps of the work surface.
It is further preferred that the strike and lean guards are bamboo chips or wattles.
It is further preferred that the timber piles are arranged outside the strike-fill space or the inclined-fill space, the spacing between said timber piles being less than 1 m.
It is further preferred that the trend filling pipe and the trend filling pipe are provided with a plurality of grout outlets, and the trend filling pipe are also provided with valves.
The utility model has the advantages that the longitude and latitude filling system of the goaf is provided, the longitude and latitude filling body can be constructed in the goaf, and the gangue paste-like filling material is manufactured through the gangue paste conveying pipe, the stirrer and the filling pump; the trend filling pipe and the trend filling pipe are respectively arranged along the trend and are used for manufacturing a longitudinal filling body and a trend filling body and sequentially grouting the goaf in a segmented manner; the trend baffle and the trend baffle ensure that the slurry forms a filling body in a preset filling area; the system also has the advantages of small filling body volume, high construction efficiency, simple and convenient operation, low cost and the like.
Drawings
FIG. 1 is a schematic structural diagram of a goaf longitude and latitude filling system;
FIG. 2 is a schematic view showing the arrangement of the trend filling pipe and the inclined filling pipe in example 2;
in the figure: 1-a gangue paste delivery pipe; 2-a stirrer; 3-a filling pump; 4-hydraulic support; 5-moving towards a filling pipe; 6-inclined filling tube; 7-timber pile; 8-moving towards a baffle; 9-inclined baffles; 10-a transportation roadway; 11-rail level.
Detailed Description
Referring to fig. 1 to 2, the present invention provides a goaf filling system with longitude and latitude in the following embodiments.
Example 1
A longitude and latitude filling system of a goaf can construct longitude and latitude filling bodies of the goaf, and comprises a waste rock paste conveying pipe 1, a stirrer 2, a filling pump 3, a hydraulic support 4, a trend filling pipe 5, a trend filling pipe 6, a timber pile 7, a trend baffle 8 and a trend baffle 9, wherein waste rock paste-like filling materials are manufactured through the waste rock paste conveying pipe 1, the stirrer 2 and the filling pump 3; the trend filling pipe 5 and the trend filling pipe 6 are respectively arranged along the trend and are used for manufacturing a longitudinal filling body and a trend filling body and sequentially grouting the goaf in a segmented manner; the run baffles 8 and the inclined baffles 9 ensure that the slurry forms a filling body in a preset filling area.
The gangue paste conveying pipe 1 is arranged in a transportation roadway, conveys materials in the transportation roadway and conveys the manufactured gangue paste-like filling materials. The mixer 2 is connected with the filling pump 3 through a paste delivery pipe, the filling pump 3 is connected with the trend filling pipe 5 and the trend filling pipe 6 through the paste delivery pipe 1, the mixer 2 is used for mixing materials to manufacture gangue paste-like filling materials, and the filling materials are pumped to a working face through the filling pump 3. The trend filling pipe behind the working face hydraulic support 4 is arranged along the trend of the working face, and the trend filling pipe 6 behind the hydraulic support 4 is arranged along the trend of the working face; the inclined filling pipes 6 are filled once at intervals, and the trend filling pipes 5 advance along the working face to fill along the working face. The trend filling pipe 5 and the trend filling pipe 6 are arranged at intervals, a plurality of grout outlets are formed in the trend filling pipe 5 and the trend filling pipe 6, and valves are further arranged on the trend filling pipe 5 and the trend filling pipe 6, so that longitude and latitude-shaped filling bodies in the trend and the trend are conveniently constructed.
The two sides of the trend filling pipe 5 are provided with trend baffles in parallel, the two sides of the trend filling pipe 6 are provided with trend baffles in parallel, and the baffles are arranged in a blocking mode, so that the filling body can be guaranteed to be constructed according to a preset area. The trend baffles 8 and the trend baffles 9 are arranged between the top plate and the bottom plate, the width between the parallel trend baffles on two sides of the trend filling pipe is 1-5m, the width between the parallel trend baffles on two sides of the trend filling pipe 6 is 1-5m, and the specific width is determined according to the width requirement of a filling body required to be constructed. The trend filling pipe 5 is arranged at the upper part of the trend filling space enclosed by the parallel trend baffles, and the trend filling pipe 6 is arranged at the upper part of the trend filling space enclosed by the parallel trend baffles, so that the paste filling material can be conveniently abutted. The distance between the central axes of the walking filling space is less than or equal to the periodic pressure step distance of the working surface, so that the filling safety is ensured. The trend baffle 8 and the trend baffle 9 are bamboo chips or wattles, so that the material cost is low and the using effect is good; the trend baffle 8 and the tendency baffle 9 are followed still are provided with stake 7, and stake 7 sets up in the outside of walking to filling space or tendency filling space, and the interval between stake 7 is less than 1m, and stake 7 guarantees that the baffle is firm, convenient construction.
The goaf longitude and latitude filling system also has the advantages of small volume of a filling body, high construction efficiency, simplicity and convenience in operation, low cost and the like.
Example 2
In order to further explain the structure and function of a goaf filling system with longitude and latitude, the structure and construction method are further explained in this embodiment.
A longitude and latitude-shaped filling system for a goaf can construct longitude and latitude-shaped filling bodies for the goaf, and comprises a waste rock paste conveying pipe 1, a stirring machine 2, a filling pump 3, a hydraulic support 4, a trend filling pipe 5, an inclination filling pipe 6, a timber pile 7, a trend baffle 8 and an inclination baffle 9. The gangue paste conveying pipe is arranged in the transportation roadway 10, and materials are conveyed in the transportation roadway 10. The mixer 2 is connected with the filling pump 3 through a paste delivery pipe, the filling pump 3 is connected with the trend filling pipe 5 and the trend filling pipe 6 through the paste delivery pipe 1, the mixer 2 is used for mixing materials to manufacture gangue paste-like filling materials, and the filling materials are pumped to a working face through the filling pump 3. The trend filling pipe behind the working face hydraulic support is arranged along the trend of the working face, the trend filling pipe behind the hydraulic support 4 is arranged along the trend of the working face, and the hydraulic support 4 with the rear top beam can be selected. The trend filling pipe 5 and the trend filling pipe 6 are arranged at intervals, a plurality of grout outlets are arranged on the trend filling pipe 5 and the trend filling pipe 6, and valves are further arranged on the trend filling pipe 5 and the trend filling pipe 6.
The two sides of the trend filling pipe 5 are provided with trend baffles 8 in parallel, and the two sides of the trend filling pipe 6 are provided with trend baffles 9 in parallel. The trend baffles 8 and the trend baffles 9 are arranged between the top plate and the bottom plate, the width W between the parallel trend baffles 8 on two sides of the trend filling pipe 5 is 1-5m, and the width W between the parallel trend baffles 9 on two sides of the trend filling pipe 6 is 1-5 m. The trend filling pipe 5 is arranged at the upper part of the trend filling space enclosed by the parallel trend baffles, and the trend filling pipe 6 is arranged at the upper part of the trend filling space enclosed by the parallel trend baffles. The distance c between the central axes of the walking filling space is less than or equal to the periodic stepping distance of the working surface. The trend baffles 8 and the trend baffles 9 are bamboo chips or wattles, wood piles 7 are further arranged along the trend baffles 8 and the trend baffles 9, the wood piles 7 are arranged outside the trend filling space or the trend filling space, and the distance between the wood piles 7 is smaller than 1 m.
Wherein the mounting structure of the trend filling pipe 5 and the trend filling pipe 6 is shown in figure 2, the trend filling pipe 6 is arranged along the working surface, the trend filling pipe 6 is connected in sections, the connection part of the trend filling pipe 6 is a three-way pipe and is also connected with the trend filling pipe; the inclined filling pipe 6 can be provided with 1-2 grout outlets and a switch valve, the position on the trend filling pipe 5 close to the three-way pipe is also provided with a valve, and the trend filling pipe 5 can also be provided with 1-2 grout outlets. In the filling process, inclined filling is firstly carried out, an inclined filling area is formed after the filling is finished, the trend filling is carried out along with the advancing of the working face, and the inclined filling is carried out before the set distance is reached.
Taking a 3301 working face of a certain mine as an example, the construction of the goaf filling system with longitude and latitude is further explained:
firstly, laying a gangue paste conveying pipe in a working face transportation roadway, and arranging a filling pump and a stirrer at the same time;
secondly, starting from the cut hole, stopping cutting coal after the coal cutter cuts two pieces of coal and obliquely cuts the coal, starting at the drift sides at the two sides of the goaf, arranging a trend filling area at intervals of a distance c along the inclination direction, wherein c is less than or equal to the periodic pressure step distance L of the working face, and the position and the range of the filling area are determined by a trend baffle;
and then when the advancing distance of the working face reaches c, arranging an inclined filling area connected with the two side drift sides behind the working face, arranging filler baffles on the two inclined sides of the filling area, opening a filling pump after the baffles are arranged, filling gangue paste-like paste above the baffles through gangue paste conveying pipes to a roof, completing filling of the inclined filling area, and constructing a longitude and latitude-shaped filler structure in the goaf.
The filling mode is repeated from the inclined filling body until the working face stops mining, and the longitude and latitude filling body of the goaf is constructed, wherein the periodic pressure step L of the working face and the width W of the filling body can be respectively determined by the following formulas:
in the formula: m isz-immediate roof thickness, m; sigmac-direct roof tensile strength, MPa; gamma-direct top volume weight, t/m3。
In the formula: n-number of filling strips; sigmatCompressive strength, MPa, of the filled strip material.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.
Claims (7)
1. A longitude and latitude-shaped filling system for a goaf is characterized by comprising a waste rock paste delivery pipe, a stirrer, a filling pump, a hydraulic support, a trend filling pipe, an inclined filling pipe, a timber pile, a trend baffle and an inclined baffle; the waste rock paste conveying pipe is arranged in the transportation roadway, the stirrer is connected with the filling pump through the paste conveying pipe, and the filling pump is connected with the trend filling pipe and the trend filling pipe through the paste conveying pipe; the trend filling pipe behind the hydraulic support is arranged along the trend of the working surface, and the trend filling pipe are arranged at intervals; the two sides of the trend filling pipe are provided with trend baffles in parallel, and the two sides of the trend filling pipe are provided with trend baffles in parallel; and wood piles are arranged along the trend baffle and the inclination baffle.
2. The goaf longitude and latitude type filling system as claimed in claim 1 wherein the trend baffle and the trend baffle are set between the top plate and the bottom plate, the width between the parallel trend baffles on both sides of the trend filling pipe is 1-5 m.
3. The goaf longitude and latitude filling system as claimed in claim 1 wherein the trend filling pipe is disposed on the upper part of the trend filling space enclosed by the parallel trend baffles, and the trend filling pipe is disposed on the upper part of the trend filling space enclosed by the parallel trend baffles.
4. The goaf filling system of claim 3, wherein the distance between the axes of the walking fill volumes is less than or equal to the periodic pressure steps of the working surface.
5. A goaf filling system according to any one of claims 1 to 4 wherein the strike and lean baffles are bamboo chips or thorns.
6. The goaf filling system as claimed in claim 5, wherein the stakes are placed outside the heading or filling space with a spacing of less than 1 m.
7. The goaf longitude and latitude filling system as claimed in claim 1 or 6 wherein the strike filling pipe and the incline filling pipe are provided with a plurality of grout outlets and valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922113279.5U CN211081969U (en) | 2019-11-29 | 2019-11-29 | Goaf longitude and latitude-shaped filling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922113279.5U CN211081969U (en) | 2019-11-29 | 2019-11-29 | Goaf longitude and latitude-shaped filling system |
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| Publication Number | Publication Date |
|---|---|
| CN211081969U true CN211081969U (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922113279.5U Expired - Fee Related CN211081969U (en) | 2019-11-29 | 2019-11-29 | Goaf longitude and latitude-shaped filling system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412532A (en) * | 2020-11-27 | 2021-02-26 | 陕西旬邑青岗坪矿业有限公司 | Advanced prevention and control method for water damage of fault roof of working face |
-
2019
- 2019-11-29 CN CN201922113279.5U patent/CN211081969U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412532A (en) * | 2020-11-27 | 2021-02-26 | 陕西旬邑青岗坪矿业有限公司 | Advanced prevention and control method for water damage of fault roof of working face |
| CN112412532B (en) * | 2020-11-27 | 2023-02-28 | 陕西旬邑青岗坪矿业有限公司 | Advanced prevention and control method for water damage of fault roof of working face |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200724 Termination date: 20201129 |