阅读说明：本技术 煤矿联络巷密闭墙及其密闭方法 (Coal mine connecting roadway sealing wall and sealing method thereof ) 是由 勾金文 王凯 冯继伟 李全中 付宏伟 马兆鑫 于 2021-07-30 设计创作，主要内容包括：煤矿联络巷密闭墙及其密闭方法,包括分体组装式墙体和气囊式定位密封圈,分体组装式墙体的外轮廓和气囊式定位密封圈的内圈形状均呈矩形,气囊式定位密封圈套在分体组装式墙体的四周外侧,气囊式定位密封圈上连接有充气组件和放气组件,气囊式定位密封圈充气膨胀后内圈和外圈分别与分体组装式墙体四周外侧压接密封和联络巷顶板、底板及两帮压接密封。本发明的骨架采用轻钢框架,在轻钢框架四周外部设置气囊式定位密封圈,充气后紧贴联络巷四壁,不会产生大量热量,避免顶部浮煤自然；成本低,安装简易；各种尺寸可灵活适用于不同矿井的联络巷。(The coal mine connection roadway sealing wall comprises a split assembly type wall body and an air bag type positioning sealing ring, wherein the outer contour of the split assembly type wall body and the inner ring of the air bag type positioning sealing ring are rectangular, the air bag type positioning sealing ring is sleeved on the peripheral outer side of the split assembly type wall body, an inflating assembly and an deflating assembly are connected onto the air bag type positioning sealing ring, and after the air bag type positioning sealing ring is inflated and expanded, the inner ring and the outer ring are respectively in compression joint sealing with the peripheral outer side of the split assembly type wall body and are in compression joint sealing with a connection roadway top plate, a connection roadway bottom plate and two sides. The framework of the invention adopts a light steel framework, the outer parts of the periphery of the light steel framework are provided with air bag type positioning sealing rings, and the air bag type positioning sealing rings are tightly attached to the four walls of the contact roadway after being inflated, so that a large amount of heat can not be generated, and the natural float coal at the top can be avoided; the cost is low, and the installation is simple and easy; various sizes can be flexibly applied to the connection lanes of different mines.)

1. Colliery connection lane seal wall, its characterized in that: the air bag type positioning sealing ring is sleeved on the outer sides of the peripheries of the split assembled wall bodies, an inflating assembly and an deflating assembly are connected to the air bag type positioning sealing ring, and after the air bag type positioning sealing ring is inflated and expanded, the inner ring and the outer ring are respectively in compression joint sealing with the outer sides of the peripheries of the split assembled wall bodies and in compression joint sealing with the top plate, the bottom plate and the two sides of the communication roadway.

2. The coal mine communication roadway containment wall of claim 1, wherein: the split assembled wall comprises a first wall monomer module, a second wall monomer module, a third wall monomer module and a fourth wall monomer module which have the same structure; the first wall body single module is positioned at the upper left side, the second wall body single module is positioned at the upper right side, the third wall body single module is positioned at the lower left side, and the fourth wall body single module is positioned at the lower right side;

the four wall body single modules comprise rectangular light steel frames, flame-retardant tarpaulins are fixedly arranged on the inner sides of the light steel frames through self-drilling screws and glue solutions, bolt through holes are formed in two adjacent side edges of the light steel frame of each wall body single module, and the right side edge of the first wall body single module is in butt joint with the left side edge of the second wall body single module and is connected with the left side edge of the second wall body single module through a first bolt assembly; the lower side of the first wall body monomer module is in butt joint with the upper side of the third wall body monomer module and is connected with the upper side of the third wall body monomer module through a second bolt assembly, the lower side of the second wall body monomer module is in butt joint with the upper side of the fourth wall body monomer module and is connected with the upper side of the fourth wall body monomer module through a third bolt assembly, and the right side of the third wall body monomer module is in butt joint with the left side of the fourth wall body monomer module and is connected with the left side of the fourth wall body monomer module through a fourth bolt assembly.

3. The coal mine communication roadway containment wall of claim 2, wherein: and sealing strips are arranged between the butted side edges of two adjacent light steel frames.

4. The coal mine communication roadway containment wall of claim 3, wherein: the inflation assembly comprises an inflation connector and a one-way valve arranged on the inflation connector.

5. The coal mine communication roadway containment wall of claim 4, wherein: the air discharging component comprises an air discharging connector, an air discharging valve and a pressure gauge are arranged on the air discharging connector, and the pressure gauge is arranged between the air discharging valve and the air bag type positioning sealing ring sleeve.

6. The method for sealing the coal mine connecting roadway sealing wall according to claim 5, wherein: the method comprises the following steps:

(1) splicing the four wall body monomer modules into a complete split assembly type wall body by using a bolt assembly;

(2) mounting the air bag type positioning sealing ring to the periphery of the split assembled wall body formed by splicing;

(3) vertically placing the split assembled wall and the air bag type positioning sealing ring to the central position of the connecting roadway;

(4) and connecting an inflator pump with an inflation port of an inflation connector, starting the inflator pump to inflate the airbag type positioning sealing ring, expanding the airbag type positioning sealing ring, respectively carrying out compression joint sealing on the inner ring and the outer ring of the airbag type positioning sealing ring and the outer sides of the periphery of the split assembled wall body and carrying out compression joint sealing on the top plate, the bottom plate and the two sides of the connecting roadway, and stopping inflating when the reading displayed by the pressure gauge reaches a set value.

7. The method for closing the coal mine connecting roadway closing wall according to claim 5, wherein: the specific operation process of the step (1) is as follows:

firstly, a first wall body monomer module and a second wall body monomer module are flatly laid on a bottom plate of a connection roadway, a sealing strip is placed between the first wall body monomer module and the second wall body monomer module, and the first wall body monomer module and the second wall body monomer module are connected into a whole by penetrating corresponding bolt through holes through a first bolt assembly;

secondly, flatly paving a third wall body monomer module and a fourth wall body monomer module on a bottom plate of the connection roadway, placing a sealing strip between the third wall body monomer module and the fourth wall body monomer module, and connecting the third wall body monomer module and the fourth wall body monomer module into a whole by using a fourth bolt assembly to penetrate through corresponding bolt through holes;

thirdly, the two wall body monomer modules assembled in the first step and the two wall body monomer modules assembled in the second step are in front-back butt joint, a sealing strip is placed between the first wall body monomer module and the third wall body monomer module and between the second wall body monomer module and the fourth wall body monomer module, the first wall body monomer module and the third wall body monomer module are connected through a second bolt assembly, and the second wall body monomer module and the fourth wall body monomer module are connected through a third bolt assembly;

fourthly, erecting the four wall body monomer modules which are assembled and connected into a whole, namely the split assembled wall body.

8. The method for closing the coal mine connecting roadway closing wall according to claim 7, wherein: if the connection lane needs to be unsealed, the sealing wall is dismantled, and the specific operation is as follows: opening the air release valve, and starting air release of the air bag type positioning sealing ring sleeve; the outer part of the periphery of the air bag type positioning sealing ring sleeve is separated from the top plate and the two sides of the communication roadway, and after the air release is finished, the whole sealing wall is flatly placed on the ground; firstly, taking down the air bag type positioning sealing ring sleeve; and then, loosening the nuts of the bolt assemblies by using a spanner so as to separate the four wall body single modules.

Technical Field

The invention belongs to the technical field of coal mining, and particularly relates to a coal mine connecting roadway sealing wall and a sealing method thereof.

Background

In the existing coal mining process, most high-yield and high-efficiency mines are tunneled in double lanes, and in the tunneling process, connection lanes are arranged to meet the requirements of ventilation and pedestrians, as shown in fig. 1 and 2, in the mining process of the mines, the passing connection lanes 14 need to be subjected to sealing treatment, so that the air quantity flowing to the connection lanes 14 is comprehensively and effectively intercepted, and the air quantity flowing to a mining working face is increased to meet the air quantity requirement of the working face. The existing connecting roadway sealing method is mainly two, one method is a wall-building pouring method, and the method needs to build a brick wall firstly, then pour a large amount of filling materials for sealing into the brick wall, or use a wood plate as a retaining wall and then fill the wood plate with a sealing material mainly comprising loess slurry, and then fill foaming materials such as polyurethane, rock and the like into the air leakage position at the top of the connecting roadway. Obviously, the method needs to consume a large amount of manpower, material resources and time, the cost of materials such as polyurethane and Rockwell foam used for air leakage treatment at the top of the connecting roadway is high, and the top supplementing method adopts the principle that polyurethane and Rockwell foam are expanded and supplemented, but the nature of the top float coal is easily caused by a large amount of heat released by chemical expansion in the polyurethane and Rockwell foam process. The other method is to use a cured cement layer and a foamed cement layer for sealing treatment, wherein two flexible molds are arranged in a communication roadway, cured cement is poured into the two flexible molds, and foamed cement is poured between the two cured cement layers. It can be seen that this approach solves the problem of large exotherms, but the amount of engineering required is still large.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a coal mine connecting roadway sealing wall and a sealing method thereof, which can reduce the sealing cost of the connecting roadway and shorten the time for sealing the connecting roadway, thereby increasing the production efficiency of a mine and avoiding causing natural float coal at the top of the connecting roadway.

In order to solve the technical problems, the invention adopts the following technical scheme: the coal mine connection roadway sealing wall comprises a split assembly type wall body and an air bag type positioning sealing ring, wherein the outline of the split assembly type wall body and the inner ring of the air bag type positioning sealing ring are rectangular, the air bag type positioning sealing ring is sleeved on the peripheral outer side of the split assembly type wall body, an inflating assembly and an deflating assembly are connected onto the air bag type positioning sealing ring, and after the air bag type positioning sealing ring is inflated and expanded, the inner ring and the outer ring are respectively in compression joint sealing with the peripheral outer side of the split assembly type wall body and in compression joint sealing with a connection roadway top plate, a bottom plate and two sides.

The split assembled wall comprises a first wall monomer module, a second wall monomer module, a third wall monomer module and a fourth wall monomer module which have the same structure; the first wall body single module is positioned at the upper left side, the second wall body single module is positioned at the upper right side, the third wall body single module is positioned at the lower left side, and the fourth wall body single module is positioned at the lower right side;

the four wall body single modules comprise rectangular light steel frames, flame-retardant tarpaulins are fixedly arranged on the inner sides of the light steel frames through self-drilling screws and glue solutions, bolt through holes are formed in two adjacent side edges of the light steel frame of each wall body single module, and the right side edge of the first wall body single module is in butt joint with the left side edge of the second wall body single module and is connected with the left side edge of the second wall body single module through a first bolt assembly; the lower side of the first wall body monomer module is in butt joint with the upper side of the third wall body monomer module and is connected with the upper side of the third wall body monomer module through a second bolt assembly, the lower side of the second wall body monomer module is in butt joint with the upper side of the fourth wall body monomer module and is connected with the upper side of the fourth wall body monomer module through a third bolt assembly, and the right side of the third wall body monomer module is in butt joint with the left side of the fourth wall body monomer module and is connected with the left side of the fourth wall body monomer module through a fourth bolt assembly.

And sealing strips are arranged between the butted side edges of two adjacent light steel frames.

The inflation assembly comprises an inflation connector and a one-way valve arranged on the inflation connector.

The air discharging component comprises an air discharging connector, an air discharging valve and a pressure gauge are arranged on the air discharging connector, and the pressure gauge is arranged between the air discharging valve and the air bag type positioning sealing ring sleeve.

The method for sealing the coal mine connecting roadway sealing wall comprises the following steps:

(1) splicing the four wall body monomer modules into a complete split assembly type wall body by using a bolt assembly;

(2) mounting the air bag type positioning sealing ring to the periphery of the split assembled wall body formed by splicing;

(3) vertically placing the split assembled wall and the air bag type positioning sealing ring to the central position of the connecting roadway;

(4) and connecting an inflator pump with an inflation port of an inflation connector, starting the inflator pump to inflate the airbag type positioning sealing ring, expanding the airbag type positioning sealing ring, respectively carrying out compression joint sealing on the inner ring and the outer ring of the airbag type positioning sealing ring and the outer sides of the periphery of the split assembled wall body and carrying out compression joint sealing on the top plate, the bottom plate and the two sides of the connecting roadway, and stopping inflating when the reading displayed by the pressure gauge reaches a set value.

The specific operation process of the step (1) is as follows:

firstly, a first wall body monomer module and a second wall body monomer module are flatly laid on a bottom plate of a connection roadway, a sealing strip is placed between the first wall body monomer module and the second wall body monomer module, and the first wall body monomer module and the second wall body monomer module are connected into a whole by penetrating corresponding bolt through holes through a first bolt assembly;

secondly, flatly paving a third wall body monomer module and a fourth wall body monomer module on a bottom plate of the connection roadway, placing a sealing strip between the third wall body monomer module and the fourth wall body monomer module, and connecting the third wall body monomer module and the fourth wall body monomer module into a whole by using a fourth bolt assembly to penetrate through corresponding bolt through holes;

thirdly, the two wall body monomer modules assembled in the first step and the two wall body monomer modules assembled in the second step are in front-back butt joint, a sealing strip is placed between the first wall body monomer module and the third wall body monomer module and between the second wall body monomer module and the fourth wall body monomer module, the first wall body monomer module and the third wall body monomer module are connected through a second bolt assembly, and the second wall body monomer module and the fourth wall body monomer module are connected through a third bolt assembly;

fourthly, erecting the four wall body monomer modules which are assembled and connected into a whole, namely the split assembled wall body.

If the connection lane needs to be unsealed, the sealing wall is dismantled, and the specific operation is as follows: opening the air release valve, and starting air release of the air bag type positioning sealing ring sleeve; the outer part of the periphery of the air bag type positioning sealing ring sleeve is separated from the top plate and the two sides of the communication roadway, and after the air release is finished, the whole sealing wall is flatly placed on the ground; firstly, taking down the air bag type positioning sealing ring sleeve; and then, loosening the nuts of the bolt assemblies by using a spanner so as to separate the four wall body single modules.

By adopting the technical scheme, the air bag type positioning sealing ring is characterized in that the inner ring and the outer ring are all rectangular and are matched with the periphery of the split assembled wall body and the cross section of the connecting roadway, and the width of the air bag type positioning sealing ring is 0.3m, so that the contact area between the air bag type positioning sealing ring and the inner wall of the connecting roadway can be increased, and the sealing effect is enhanced; the thickness of the air bag type positioning sealing ring can be flexibly controlled to be 0.3-0.5 m, and the air bag type positioning sealing ring is used for adjusting the compression joint strength between the inner walls of the connecting roadway. An inflation inlet and an deflation port are arranged on the air bag type positioning sealing ring, a one-way valve is arranged on the inflation connector, and a pressure gauge and a deflation valve are arranged on the deflation connector. The air bag type positioning sealing rings also have different types, and are suitable for sealing walls with different thicknesses.

The split assembled wall body is in a rectangular structure formed by fastening and connecting four wall body single modules through bolt assemblies. The wall body monomer module is characterized in that the flame-retardant tarpaulin is fixed to the inner side of the light steel frame through self-drilling screws, then the joint of the inner side of the light steel frame and the flame-retardant tarpaulin is subjected to sealing treatment through a sealant gun, the flame-retardant tarpaulin is used as a main closed body, the flame-retardant tarpaulin is automatically extinguished after leaving a fire source, combustion cannot be continued, the influence of fire disasters can be effectively reduced, and a simple physical connection mode is adopted, so that the time and labor are saved, the cost is low, and the installation is simple and easy. The split assembled wall body is fastened by adopting simple bolts and nuts, and is characterized by being detachable, small volume after being detached, convenient carrying and convenient assembly, and greatly shortening the time for sealing the connecting roadway, thereby improving the production efficiency of a mine to a certain extent; the size of the wall single module can be designed to be different sizes of 1.2m by 0.9m, 1.6m by 1.2m and the like, and the wall single module is suitable for different connecting lanes.

In summary, the present invention has the following technical effects:

1) the framework adopts a light steel framework, the outer parts of the periphery of the light steel framework are provided with air bag type positioning sealing rings, and the air bag type positioning sealing rings are tightly attached to the four walls of the contact roadway after being inflated, so that a large amount of heat can not be generated, and the natural float coal at the top can be avoided;

2) the wall body monomer module adopts a closed wall formed by compounding a light steel frame and fireproof flame-retardant tarpaulin, so that the cost is low and the installation is simple and easy;

3) the invention can also split the split assembled wall into a plurality of independent closed modules, and various sizes can be flexibly suitable for the communication roadways of different mines.

Drawings

FIG. 1 is a schematic plan view of a coal mine cross roadway;

FIG. 2 is an elevational schematic view of a coal mine communication roadway;

FIG. 3 is a schematic structural view of the split assembly wall according to the present invention;

FIG. 4 is a perspective view of the air bag type positioning sealing ring of the present invention;

fig. 5 is a perspective view of a wall unit module according to the present invention.

Reference numbers in the figures:

1-a first wall monomer module; 2-a second wall monomer module; 3-a third wall monomer module; 4-a fourth wall monomer module; 5-air bag type positioning sealing ring; 6-light steel frame; 7-flame retardant tarpaulin; 8-bolt perforation; 9-inflation joints; 10-a one-way valve; 11-a bleeder connection; 12-a purge valve; 13-pressure gauge; 14-connecting lane; 15-coal pillar; 16-laneway.

Detailed Description

As shown in fig. 3-5, the coal mine connection roadway sealing wall comprises a split assembly type wall body and an air bag type positioning sealing ring 5, wherein the outer contour of the split assembly type wall body and the inner ring of the air bag type positioning sealing ring 5 are rectangular, the air bag type positioning sealing ring 5 is sleeved on the outer side of the periphery of the split assembly type wall body, an inflation assembly and an air release assembly are connected onto the air bag type positioning sealing ring 5, and after inflation and expansion of the air bag type positioning sealing ring 5, the inner ring and the outer ring are respectively in compression joint sealing with the outer side of the periphery of the split assembly type wall body and in compression joint sealing with a top plate, a bottom plate and two sides of the connection roadway.

The split assembled wall comprises a first wall monomer module 1, a second wall monomer module 2, a third wall monomer module 3 and a fourth wall monomer module 4 which have the same structure; the first wall body single module 1 is positioned at the upper left side, the second wall body single module 2 is positioned at the upper right side, the third wall body single module 3 is positioned at the lower left side, and the fourth wall body single module 4 is positioned at the lower right side;

the four wall body single modules comprise rectangular light steel frames 6, flame-retardant tarpaulins 7 are fixedly arranged on the inner sides of the light steel frames 6 through self-drilling screws and glue solutions, bolt through holes 8 are formed in two adjacent side edges of each light steel frame 6 of each wall body single module, and the right side edge of the first wall body single module 1 is in butt joint with the left side edge of the second wall body single module 2 and is connected with the left side edge of the second wall body single module through a first bolt assembly; the lower side of the first wall body monomer module 1 is in butt joint with the upper side of the third wall body monomer module 3 and is connected with the upper side of the third wall body monomer module through a second bolt assembly, the lower side of the second wall body monomer module 2 is in butt joint with the upper side of the fourth wall body monomer module 4 and is connected with the upper side of the fourth wall body monomer module through a third bolt assembly, and the right side of the third wall body monomer module 3 is in butt joint with the left side of the fourth wall body monomer module 4 and is connected with the left side of the fourth wall body monomer module through a fourth bolt assembly.

And sealing strips are arranged between the butted side edges of two adjacent light steel frames 6.

The inflation assembly comprises an inflation connector 9 and a one-way valve 10 provided on the inflation connector 9.

The air discharge component comprises an air discharge connector 11, an air discharge valve 12 and a pressure gauge 13 are arranged on the air discharge connector 11, and the pressure gauge 13 is arranged between the air discharge valve 12 and the air bag type positioning sealing ring 5.

The bolt assembly and the sealing strip in the invention are not shown in the figure.

The method for sealing the coal mine connecting roadway sealing wall comprises the following steps:

(1) splicing the four wall body monomer modules into a complete split assembly type wall body by using a bolt assembly;

(2) mounting an air bag type positioning sealing ring 5 to the periphery of the split assembled wall body formed by splicing;

(3) vertically placing the split assembled wall and the air bag type positioning sealing ring 5 to the central position of the connecting roadway;

(4) and (3) connecting an inflator pump with an inflation port of an inflation connector 9, starting the inflator pump to inflate the airbag type positioning sealing ring 5, expanding the airbag type positioning sealing ring 5, respectively connecting the inner ring and the outer ring of the airbag type positioning sealing ring 5 with the outer side of the periphery of the split assembly type wall body in a compression joint manner and connecting roadway top plates, bottom plates and two sides in a compression joint manner, and stopping inflating when the reading displayed by a pressure gauge 13 reaches a set value.

The specific operation process of the step (1) is as follows:

firstly, a first wall body single module 1 and a second wall body single module 2 are tiled on a bottom plate of a connection roadway, a sealing strip is placed between the first wall body single module 1 and the second wall body single module 2, and the first wall body single module 1 and the second wall body single module 2 are connected into a whole by a first bolt assembly penetrating through a corresponding bolt through hole 8;

secondly, paving a third wall body monomer module 3 and a fourth wall body monomer module 4 on a bottom plate of the connecting roadway, placing a sealing strip between the third wall body monomer module 3 and the fourth wall body monomer module 4, and connecting the third wall body monomer module 3 and the fourth wall body monomer module 4 into a whole by using a fourth bolt assembly to penetrate through a corresponding bolt through hole 8;

thirdly, the two wall body monomer modules assembled in the first step and the two wall body monomer modules assembled in the second step are in front-back butt joint, a sealing strip is placed between the first wall body monomer module 1 and the third wall body monomer module 3 and between the second wall body monomer module 2 and the fourth wall body monomer module 4, the first wall body monomer module 1 and the third wall body monomer module 3 are connected through a second bolt assembly, and the second wall body monomer module 2 and the fourth wall body monomer module 4 are connected through a third bolt assembly;

fourthly, erecting the four wall body monomer modules which are assembled and connected into a whole, namely the split assembled wall body.

If the connection lane needs to be unsealed, the sealing wall is dismantled, and the specific operation is as follows: the air release valve 12 is opened, and the air bag type positioning sealing ring 5 sleeve begins to release air; the outer part of the periphery of the air bag type positioning sealing ring 5 is sleeved on the top plate and the two sides of the connecting roadway, and after air release is finished, the whole sealing wall is flatly placed on the ground; firstly, taking off the air bag type positioning sealing ring 5 sleeve; and then, loosening the nuts of the bolt assemblies by using a spanner so as to separate the four wall body single modules.

The air bag type positioning sealing ring 5 is characterized in that the inner ring and the outer ring are all rectangular and are matched with the periphery of a split assembled wall body and the cross section of a connecting roadway, and the width of the air bag type positioning sealing ring 5 is 0.3m, so that the contact area between the air bag type positioning sealing ring 5 and the inner wall of the connecting roadway can be increased, and the sealing effect is enhanced; the thickness of the air bag type positioning sealing ring 5 can be flexibly controlled to be 0.3-0.5 m, and the air bag type positioning sealing ring is used for adjusting the compression joint strength between the inner walls of the connecting roadway. The air bag type positioning sealing ring 5 is provided with an inflation inlet and an deflation inlet, the inflation joint 9 is provided with a one-way valve 10, and the deflation joint 11 is provided with a pressure gauge 13 and a deflation valve 12. The air bag type positioning sealing rings 5 also have different types and are suitable for sealing walls with different thicknesses.

The split assembled wall body is in a rectangular structure formed by fastening and connecting four wall body single modules through bolt assemblies. The wall body monomer module is characterized in that the flame-retardant tarpaulin 7 is fixed to the inner side of the light steel frame 6 through self-drilling screws, then the joint of the inner side of the light steel frame 6 and the flame-retardant tarpaulin 7 is subjected to sealing treatment through a sealing glue gun, the flame-retardant tarpaulin 7 is used as a main closed body, the flame-retardant tarpaulin 7 is automatically extinguished after leaving a fire source, and can not be continuously combusted, so that the influence of fire disasters can be effectively reduced, and a simple physical connection mode is adopted, so that the time and labor are saved, the cost is low, and the installation is simple and easy. The split assembled wall body is fastened by adopting simple bolts and nuts, and is characterized by being detachable, small volume after being detached, convenient carrying and convenient assembly, and greatly shortening the time for sealing the connecting roadway, thereby improving the production efficiency of a mine to a certain extent; the size of the wall single module can be designed to be different sizes of 1.2m by 0.9m, 1.6m by 1.2m and the like, and the wall single module is suitable for different connecting lanes.

The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.