CN216446866U - Auxiliary application device applied to S value collection of mining working face - Google Patents
Auxiliary application device applied to S value collection of mining working face Download PDFInfo
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- CN216446866U CN216446866U CN202122871697.8U CN202122871697U CN216446866U CN 216446866 U CN216446866 U CN 216446866U CN 202122871697 U CN202122871697 U CN 202122871697U CN 216446866 U CN216446866 U CN 216446866U
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- 238000005065 mining Methods 0.000 title claims description 13
- 239000003245 coal Substances 0.000 claims abstract description 63
- 239000000843 powder Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000013480 data collection Methods 0.000 abstract description 4
- 238000009412 basement excavation Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 26
- 238000005520 cutting process Methods 0.000 description 8
- 239000002817 coal dust Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000005641 tunneling Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses an auxiliary application device applied to collecting S values of an excavation working face, which comprises a coal receiving device and a hole opener, wherein the coal receiving device comprises a coal powder channel, a coal receiving channel, a connector and a protection channel, the rear end of the coal powder channel is connected with the front end of the connector, the rear end of the connector is connected with the front end of the protection channel, the middle part of the protection channel is connected with the upper end of the coal receiving channel, and inner cavities of the coal powder channel, the coal receiving channel, the connector and the protection channel are communicated with each other; the hole digger comprises a drill bit and a threaded drill rod, wherein the rear end of the drill bit is connected with the front end of the threaded drill rod. The method ensures the accuracy and authenticity of S value data collection, more truly reflects the field condition of the underground working face, and further ensures safe and efficient production of a mine.
Description
The technical field is as follows:
the utility model relates to a device for collecting an S value of a coal mining working face, in particular to an auxiliary application device applied to collecting the S value of the mining working face.
The background art comprises the following steps:
according to the ninth ten items and the ninety items of the coal and gas outburst prevention rules: when the outburst danger of the coal roadway driving face is predicted by adopting a drilling cutting index method, the predicted drilling hole starts from the depth of 2m, the total drilling cutting quantity S of the 1m section is measured every drilling time 1m, and the drilling cutting gas desorption index K1 or the value delta h2 is measured at least 1 time every drilling time 2 m; and when the outburst danger of the coal roadway driving face is predicted by adopting a composite index method, the predicted drilling hole starts from the depth of 2m, and the total drilling cuttings quantity S of the 1m section is measured every drilling time of 1 m. If all measured values of the index S obtained through actual measurement are smaller than the critical value and other abnormal conditions are not found, the working surface is predicted to be a working surface without the prominent danger; otherwise, the dangerous working surface is highlighted.
The ventilation anti-outburst innovation group develops an auxiliary application device applied to S value collection of the mining working face by combining actual conditions and working requirements of an underground field for guaranteeing accurate S value data collection of underground region verification, and the device better guarantees the accuracy and the authenticity of S value data collection, more truly reflects the field condition of the underground working face, and further guarantees safe and efficient production of a mine.
The utility model has the following contents:
the technical problem to be solved by the utility model is as follows: the auxiliary application device for collecting the S value of the mining working face overcomes the defects of the prior art, is reasonable in design, easy to implement and capable of improving the measurement accuracy.
The technical scheme of the utility model is as follows:
an auxiliary application device applied to collecting S values of a mining working face comprises a coal receiving device and a hole opener, wherein the coal receiving device comprises a coal powder channel, a coal receiving channel, a connector and a protection channel, the rear end of the coal powder channel is connected with the front end of the connector, the rear end of the connector is connected with the front end of the protection channel, the middle of the protection channel is connected with the upper end of the coal receiving channel, and inner cavities of the coal powder channel, the coal receiving channel, the connector and the protection channel are communicated with each other; the hole digger comprises a drill bit and a threaded drill rod, wherein the rear end of the drill bit is connected with the front end of the threaded drill rod.
The threaded drill rod is formed by connecting a large-diameter threaded drill rod and a small-diameter threaded drill rod, the front end of the large-diameter threaded drill rod is connected with the rear end of the drill bit, and the rear end of the large-diameter threaded drill rod is connected with the front end of the small-diameter threaded drill rod.
The coal powder channel, the coal receiving channel, the connector and the protection channel are all made of PVC materials, and a sealing ring is arranged at the rear end of the protection channel.
The utility model has the beneficial effects that:
1. the utility model ensures the accuracy and the authenticity of S value data collection, more truly reflects the field condition of the underground working face, and further ensures the safe and efficient production of a mine.
2. According to the method, too complicated operation steps of workers are not required, and the accuracy of S value collection is ensured; the application of the S value collecting device breaks through the old working mode of workers, improves innovation consciousness of the workers, and lays a solid foundation for future mine practical innovation thinking mode and safe production.
3. According to the method, the prediction of the area of a tunneling working face is taken as an example, a wind barrier needs to be arranged at the head of the working face when the traditional S value is collected, the influence of wind-blown pulverized coal dissipation is reduced as much as possible, the S value is lost in the collection process due to the flatness restriction of the coal wall of the working face, the measured value of the S value at each meter section is inaccurate, hidden dangers are buried in the safe production, a semi-closed structure is adopted for the S value collection device, the wind-blown working face is not received, the accuracy and the authenticity of the predicted data are guaranteed due to the restriction of the flatness of the coal wall, and a powerful, time-saving and labor-saving new working method is provided for the safe production of the underground tunneling working face.
4. The special sealing ring is arranged at the tail part of the protection channel, so that coal dust cannot overflow from the tail part and be lost during drilling.
5. The utility model has the advantages of reasonable design, easy implementation, measurement precision improvement, wide application range, easy popularization and implementation and good economic benefit.
Description of the drawings:
FIG. 1 is a schematic diagram of a coal catcher in an auxiliary application for mining face S-value collection;
fig. 2 is a schematic structural diagram of a hole opener in an auxiliary application device applied to mining face S-value collection.
The specific implementation mode is as follows:
the first embodiment is as follows: referring to fig. 1-2, in the figure, 1-pulverized coal channel, 2-coal receiving channel, 3-connector, 4-protection channel, 5-sealing ring, 6-drill bit, 7-large diameter threaded drill rod and 8-small diameter threaded drill rod.
The component composition and the working principle are as follows:
1. the components are as follows: the auxiliary application device applied to the mining working face S value collection is composed of a coal receiving device as shown in figure 1 and a hole opener as shown in figure 2.
1.1, a coal receiving device comprises:
the coal receiving device consists of four parts: a pulverized coal passage 2; a coal receiving passage 2; a connector 3; the channel 4 is protected.
1.2, the hole digger comprises:
the hole digger consists of ↂ 75mm drill bit 6 of 80mm length made of alloy steel and threaded drill rod of 920mm length.
1.2.1, bit 6:
the ↂ 75mm drill bit 6 is made of alloy steel, has extremely high hardness, and can be used for drilling and tapping underground recovery working faces and heading working faces.
1.2.2, threaded drill rod:
the threaded drill rod is formed by welding a large-diameter threaded drill rod 7 with the length of 0.72m and the diameter of 68mm and a small-diameter threaded drill rod 8 with the length of 0.2m and the diameter of 42mm, and is convenient to use in a matched manner by applying an anchor head drill connector on a stope face and a tunneling face.
2. The working principle is as follows:
when a coal mine underground stope face and a tunneling face adopt a composite index, a drilling cutting index method and an R value index method for carrying out regional verification, the S value of each meter section needs to be collected and measured. The predicted drilling starts at a depth of 2m and the total cuttings volume S of the 1m section is measured for each 1m drilled.
Before the prediction drilling is carried out in the construction, firstly, a hole opener is used for opening holes, the drilling construction is carried out to the position of 1 meter, the drilling is stopped, then, a coal receiving device is installed and fixed, after the coal receiving device is fixed, air cylinder cloth and a coal receiving cylinder are placed below a coal receiving channel 2 of the coal receiving device, the normal drilling construction can be carried out, the coal receiving device adopts a semi-closed structure and is not limited by the wind blowing of a working face and the smoothness of the coal wall of the working face, and the total drilling cuttings quantity S of the section of 1m can be measured when the drilling hole drills 1 m.
3. The main key technical characteristics are as follows:
3.1, structural parameters of the coal receiving device:
3.1.1, the total length of the upper passage of the coal receiving device is 2m, the length of the coal powder passage is 1.5m, the diameter is 0.075m, the total length of the connector 3 and the protection passage 4 is 0.5m, and the diameter is 0.122m, and the connectors are all made of PVC materials.
3.2 each part and technical function of coal receiving device:
3.2.1, the diameter of a drill hole drilled by the drill bit 6 is 75mm, which just meets the diameter of the coal receiving device coal dust channel 1, so that the coal receiving channel 1 is tightly attached to the drill hole, and coal dust cannot overflow and be lost.
3.2.2, the total length of the threaded drill rod and a drill bit with the diameter of 75mm is 1m, and the ninth and the nineteenth specifications of the anti-extrusion rule are met: when the outburst danger of the coal roadway driving face is predicted, the predicted drilling hole starts from the depth of 2m, and the total drilling cuttings quantity S of the 1m section is measured every 1m drilling time.
3.3.3, connect coal ware upper portion passageway overall length 2m, ensured the drilling and in-process, sufficient surplus and can not have the buggy to lose when the drilling rod is drawn round and round.
3.3.4, the length of the coal powder channel 1 is 1.5m, the diameter is 0.075m, the diameter of the coal powder channel is just matched with the diameter of a drill hole which is formed by the hole opener by 75mm, and the coal powder channel can be tightly attached to the drill hole to prevent the coal powder from being lost in the drilling process.
3.3.5, the connector 3 adopts PVC material, and the diameter is 0.122m, plays the effect that buggy passageway 1 and protection passageway 4 link up.
3.3.6, protection, 4, diameter 0.108m, all made of PVC.
Example two: the present embodiment is substantially the same as the first embodiment, and the same points are not repeated, except that: a seal ring 5 is arranged at the tail part of the protection channel 4, so that coal dust cannot overflow from the tail part and be lost during drilling of a drilled hole, and the accuracy of measurement is improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modifications made according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.
Claims (3)
1. The utility model provides an auxiliary application device for mining working face S value is collected, includes coal collector and hole digger, characterized by: the coal receiving device comprises a coal powder channel, a coal receiving channel, a connector and a protection channel, wherein the rear end of the coal powder channel is connected with the front end of the connector, the rear end of the connector is connected with the front end of the protection channel, the middle part of the protection channel is connected with the upper end of the coal receiving channel, and inner cavities of the coal powder channel, the coal receiving channel, the connector and the protection channel are communicated with each other; the hole digger comprises a drill bit and a threaded drill rod, wherein the rear end of the drill bit is connected with the front end of the threaded drill rod.
2. The auxiliary application device applied to the mining face S value collection of claim 1, wherein: the threaded drill rod is formed by connecting a large-diameter threaded drill rod and a small-diameter threaded drill rod, the front end of the large-diameter threaded drill rod is connected with the rear end of the drill bit, and the rear end of the large-diameter threaded drill rod is connected with the front end of the small-diameter threaded drill rod.
3. The auxiliary application device applied to the mining face S value collection of claim 1, wherein: the coal powder channel, the coal receiving channel, the connector and the protection channel are all made of PVC materials, and a sealing ring is arranged at the rear end of the protection channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122871697.8U CN216446866U (en) | 2021-11-23 | 2021-11-23 | Auxiliary application device applied to S value collection of mining working face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122871697.8U CN216446866U (en) | 2021-11-23 | 2021-11-23 | Auxiliary application device applied to S value collection of mining working face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216446866U true CN216446866U (en) | 2022-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122871697.8U Expired - Fee Related CN216446866U (en) | 2021-11-23 | 2021-11-23 | Auxiliary application device applied to S value collection of mining working face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216446866U (en) |
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2021
- 2021-11-23 CN CN202122871697.8U patent/CN216446866U/en not_active Expired - Fee Related
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