AU2021104220A4 - Waterproof method and waterproof flow guide device for coal mine roof - Google Patents

Waterproof method and waterproof flow guide device for coal mine roof Download PDF

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Publication number
AU2021104220A4
AU2021104220A4 AU2021104220A AU2021104220A AU2021104220A4 AU 2021104220 A4 AU2021104220 A4 AU 2021104220A4 AU 2021104220 A AU2021104220 A AU 2021104220A AU 2021104220 A AU2021104220 A AU 2021104220A AU 2021104220 A4 AU2021104220 A4 AU 2021104220A4
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flow guide
waterproof
corrugated
guide plate
flow
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AU2021104220A
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Donghai JIANG
Hengjie LUAN
Tongxu WANG
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Shandong University of Science and Technology
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Shandong University of Science and Technology
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F16/00Drainage
    • E21F16/02Drainage of tunnels
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/38Waterproofing; Heat insulating; Soundproofing; Electric insulating
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F16/00Drainage
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C41/00Methods of underground or surface mining; Layouts therefor
    • E21C41/16Methods of underground mining; Layouts therefor
    • E21C41/18Methods of underground mining; Layouts therefor for brown or hard coal

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Sewage (AREA)

Abstract

OF THE DISCLOSURE The present disclosure relates to a waterproof method and a waterproof flow guide device for a coal mine roof, and a waterproof flow guide device and a waterproof method adopting the device are disclosed. The waterproof flow guide device is convenient and rapid to move and erect, can preferably guide flow through corrugated flow guide plates, and is provided with blocking net structures to prevent flow guide drainage pipes from being blocked, wherein the waterproof method comprises the following steps: according to the required waterproof length, pushing a corresponding number of waterproof flow guide devices to the position below a waterproof roof, assembling the waterproof flow guide devices into a whole body, then adjusting the heights of the waterproof flow guide devices to be slightly lower than the roof to complete erection of a waterproof structure, collecting roof seepage water into drainage pipes through the waterproof flow guide devices to be discharged in a concentrated mode, and thus realizing waterproof flow guide of the roof seepage water. -1/4 DRAWINGS 15 1 2 14 3 13 124 11 5 10 6 7 9 8 FIG. 1

Description

-1/4
DRAWINGS
15 1
2 14
3
13 124 11 5
6
7 9 8
FIG. 1
WATERPROOF METHOD AND WATERPROOF FLOW GUIDE DEVICE FOR COAL MINE ROOF TECHNICAL FIELD
[01] The present disclosure provides a waterproof method and a waterproof flow guide device for a coal mine roof, relates to a waterproof flow guide device and a waterproof flow guide device for seepage water on a coal mine roof, and belongs to the field of coal mine equipment. The present disclosure particularly relates to a waterproof flow guide device which is convenient and rapid to move and erect, can preferably guide flow through corrugated flow guide plates, and is provided with blocking net structures to prevent flow guide drainage pipes from being blocked and a waterproof method adopting the device.
BACKGROUNDART
[02] The underground hydrological environment of a coal mine is complex, and underground water also exists between underground layers, so that the phenomena of water seepage, water leakage and even water gushing occur on the top layer of a roadway in the excavating process of the coal mine roadway, and although the roadway is protected by a roof, the top layer seepage water still flows into the roadway through roof gaps due to the fact that the gaps exist at the joints of the roof to cause moisture and smudge of the roadway environment and influence normal operation of workers. Moreover, when the roadway bottom plate is in a wet environment for a long time, the mudstone position of the roadway bottom plate expands when encountering water, so that transportation facilities deflect, and normal production operation is affected, and in the prior art, flow guide plates are erected below the roof for water prevention and drainage. However, an existing waterproof structure is fixed after being installed and cannot be moved conveniently, so that the existing waterproof structure needs to be dismounted ceaselessly and then erected again for being moved and used in the coal mine excavating and propelling process, and the existing waterproof structure is extremely inconvenient.
[03] The present disclosure with the publication patent number of CN208749399U provides a waterproof flow guide device for a coal mine roof. The waterproof flow guide device comprises a collecting cover, arc-shaped supports are welded to the outer walls of the two sides of the collecting cover, flow guide mechanisms are arranged at the ends, away from the collecting cover, of the two arc-shaped supports, a water distribution strip with a triangular section is arranged on the inner wall of the bottom end of the collecting cover, branch pipes are welded to the bottom ends of the outer walls of the two sides of the collecting cover, water immersion sensors are fixed to the top ends of the inner walls of the two sides of the collecting cover through bolts, the two branch pipes are connected with hoses, the two hoses are connected with the flow guide mechanisms, each flow guide mechanism comprises a metal cylinder, the hoses are in threaded connection with the side walls of the metal cylinders, and the top ends of the side walls of the metal cylinders are fixed with one end of each of the arc-shaped supports through bolts. The device cannot be conveniently moved and used, meanwhile, the bottom surface of the collecting cover adopts flat plate type flow guide, the flow guide efficiency is low, and flow guide holes between pipes are prone to being blocked by gravels.
[04] The present disclosure with the publication patent number of CN209228406U provides a roadway water spraying fluid director. The roadway water spraying fluid director comprises a water receiving plate, a high-position supporting piece, a low-position supporting piece, a diversion trench, a drainage opening, a drainage pipe and a drainage ditch. The high-position supporting piece and the low-position supporting piece are arranged on the opposite side walls of the roadway respectively, the water receiving plate is laid on the high-position supporting piece and the low-position supporting piece, and the lower end of the water receiving plate is connected with the diversion trench formed in the side wall of the roadway. An opening is formed in the upper part of the diversion trench, a conical water drainage opening with a large upper part and a small lower part is formed in the lower part of the diversion trench, an opening in the lower end of the drainage opening is connected with the drainage pipe, an opening in the lower end of the drainage pipe communicates into the drainage ditch, in addition, a gutter parallel to the water flow direction is formed in the water receiving plate, and a horizontal filter screen is arranged in the diversion trench. The fluid director structure is fixed and cannot be moved conveniently, meanwhile, the flat-plate-type flow guide structure of the bottom water receiving plate is poor in flow guide effect.
SUMMARY
[05] In order to improve the situation, the present disclosure provides a waterproof flow guide device which is convenient and rapid to move and erect, can preferably guide flow through corrugated flow guide plates, and is provided with blocking net structures to prevent flow guide drainage pipes from being blocked and a waterproof method adopting the device.
[06] The waterproof method for a coal mine roof comprises the following steps:
[07] Firstly, according to the required waterproof length, pushing a corresponding number of waterproof flow guide devices to the position below a waterproof roof, and assembling the waterproof flow guide devices into a whole body;
[08] Secondly, then adjusting the heights of the waterproof flow guide devices to be slightly lower than the roof to complete erection of a waterproof structure; and
[09] Thirdly, collecting roof seepage water into drainage pipes through the waterproof flow guide devices to be discharged in a concentrated mode, and thus realizing waterproof flow guide of the roof seepage water.
[10] The present disclosure relates to a waterproof flow guide device for a coal mine roof, wherein the waterproof flow guide device consists of a corrugated flow guide plate, a convex drum part, hydraulic columns, flow guide pipes, drainage pipes, flange plates, supporting ribs, bases, trundles, flow guide hopper grooves, sealing gaskets, filter cylinders, flow deflectors, connecting holes, inserting plates, connecting grooves, blocking nets, handles and flow guide strips, the convex drum part is arranged at the middle position of the corrugated flow guide plate, concave surfaces are located the positions, close to the two side edges of the convex drum part, of the corrugated flow guide plate, the telescopic ends of the two hydraulic columns are connected with the bottom surface of the convex drum part on the corrugated flow guide plate, the two hydraulic columns are close to the two ends of the corrugated flow guide plate respectively, the fixed end of each hydraulic column is connected with a base, each base is of an L-shaped platy structure, a plurality of rotatable trundles are arranged at the bottom of each base, installation frames are arranged at the two ends of the corrugated flow guide plate respectively, the sealing gaskets are arranged on the side surfaces, at the back of the corrugated flow guide plate, of the installation frames, two flow guide hopper grooves are formed in each installation frame, the bottoms of the flow guide hopper grooves downwards extend out of the installation frames, the flow guide hopper grooves correspond to the concave surfaces on the corrugated flow guide plate, the flow guide strips are arranged at the two ends of the convex drum part on the corrugated flow guide plate, each flow guide strip consists of two arc-shaped strips, the two arc-shaped strips are connected at one end, the other ends of the two arc-shaped strips extend towards the two concave surfaces on the corrugated flow guide plate respectively, two flow deflectors are arranged at the positions, close to one side edge, of the corrugated flow guide plate, two flow deflectors are arranged at the positions, close to the other side edge, of the corrugated flow guide plate, two flow deflectors are located at the two ends of the corrugated flow guide plate respectively, each flow deflector is of an arc-shaped platy structure, one end of each flow deflector extends towards the corresponding flow guide hopper groove, the two drainage pipes are connected with the two bases through the supporting ribs respectively, the drainage pipes are located above the bases obliquely, the flange plates are arranged at the two ends of each drainage pipe respectively, one end of each of the two flow guide pipes is arranged on the drainage pipes respectively, the other ends of the two flow guide pipes are connected with the bottoms of the two flow guide hopper grooves above respectively, the flow guide pipes communicate with the flow guide hopper grooves, the flow guide pipes are telescopic pipes, each flow guide pipe is formed by connecting two connecting pipes in a sleeving mode, each filter cylinder is arranged in the corresponding flow guide hopper groove, a drawing groove is formed in each flow guide hopper groove, the corresponding handle is arranged on one side of each of thefilter cylinders, the corresponding blocking net is arranged at the bottom of each filter cylinder, the inserting plates are arranged on one side edge of the corrugated flow guide plate, a plurality of connecting holes are formed in each inserting plate, the connecting grooves are formed in the other side edge of the corrugated flow guide plate and correspond to the inserting plates, a plurality of connecting holes are formed in the positions, corresponding to the connecting grooves, of the corrugated flow guide plate, each blocking net consists of multiple layers of filter screens, the meshes of the multiple layers offilter screens are gradually decreased from the top down, the side surface, provided with the corresponding handle, of each filter cylinder is an oblique surface, and each supporting rib is of a triangular platy structure.
[11] Further, a plurality of flow guide rods are arranged on each concave surface on the corrugated flow guide plate.
[12] Beneficial effects:
[13] Firstly, waterproof flow guide can be conducted on the seepage water on the roof, so that the dryness and the safety in the environment of the roadway are guaranteed.
[14] Secondly, the corrugated flow guide plate improves the flow guide effect on the seepage water on the roof, and guarantees the drainage and waterproof efficiency.
[15] Thirdly, the whole integrated structure is matched with the trundles to facilitate mobile installation and erection.
[16] Fourthly, the blocking net structures can be convenient to clean, so that the flow guide drainage pipes are prevented from being blocked.
BRIEFT DESCRIPTION OF THE DRAWINGS
[17] FIG. 1 is a solid structural diagram of a waterproof method and a waterproof flow guide device for a coal mine roof in the present disclosure.
[18] FIG. 2 is a structural diagram of the waterproof method and the waterproof flow guide device for a coal mine roof in the present disclosure.
[19] FIG. 3 is a solid structural diagram of a filter cylinder of the waterproof method and the waterproof flow guide device for a coal mine roof in the present disclosure.
[20] FIG. 4 is a solid structural diagram of Embodiment II of the waterproof method and the waterproof flow guide device for a coal mine roof in the present disclosure.
[21] Reference signs in drawings: 1, corrugated flow guide plate; 2, convex drum part; 3, hydraulic column; 4, flow guide pipe; 5, drainage pipe; 6, flange plate; 7, supporting rib; 8, base; 9, trundle; 10, flow guide hopper groove; 11, sealing gasket; 12, filter cylinder; 13, flow deflector; 14, connecting hole; 15, inserting plate; 16, connecting groove; 17, blocking net; 18, handle; 19, flow guide rod; and 20, flow guide stripe.
DETAILED DESCRIPTION OF THE EMBODIMENTS
[22] Embodiment I
[23] A waterproof method for a coal mine roof comprises the following steps:
[24] Firstly, according to the required waterproof length, pushing a corresponding number of waterproof flow guide devices to the position below a waterproof roof, and assembling the waterproof flow guide devices into a whole body;
[25] Secondly, then adjusting the heights of the waterproof flow guide devices to be slightly lower than the roof to complete erection of a waterproof structure; and
[26] Thirdly, collecting roof seepage water into drainage pipes 5 through the waterproof flow guide devices to be discharged in a concentrated mode, and thus realizing waterproof flow guide of the roof seepage water.
[27] The present disclosure relates to a waterproof flow guide device for a coal mine roof, wherein the waterproof flow guide device consists of a corrugated flow guide plate 1, a convex drum part 2, hydraulic columns 3, flow guide pipes 4, drainage pipes 5, flange plates 6, supporting ribs 7, bases 8, trundles 9, flow guide hopper grooves 10, sealing gaskets 11, filter cylinders 12, flow deflectors 13, connecting holes 14, inserting plates 15, connecting grooves 16, blocking nets 17, handles 18 and flow guide strips 20, the convex drum part 2 is arranged at the middle position of the corrugated flow guide plate 1, concave surfaces are located the positions, close to the two side edges of the convex drum part 2, of the corrugated flow guide plate 1, the telescopic ends of the two hydraulic columns 3 are connected with the bottom surface of the convex drum part 2 on the corrugated flow guide plate 1, the two hydraulic columns 3 are close to the two ends of the corrugated flow guide plate 1 respectively, the fixed end of each hydraulic column 3 is connected with a base 8, each base 8 is of an L-shaped platy structure, a plurality of rotatable trundles 9 are arranged at the bottom of each base 8, installation frames are arranged at the two ends of the corrugated flow guide plate 1 respectively, the sealing gaskets 11 are arranged on the side surfaces, at the back of the corrugated flow guide plate 1, of the installation frames, two flow guide hopper grooves 10 are formed in each installation frame, the bottoms of the flow guide hopper grooves 10 downwards extend out of the installation frames, the flow guide hopper grooves 10 correspond to the concave surfaces on the corrugated flow guide plate 1, the flow guide strips 20 are arranged at the two ends of the convex drum part 2 on the corrugated flow guide plate 1, each flow guide strip 20 consists of two arc-shaped strips, the two arc-shaped strips are connected at one end, the other ends of the two arc-shaped strips extend towards the two concave surfaces on the corrugated flow guide plate 1 respectively, two flow deflectors 13 are arranged at the positions, close to one side edge, of the corrugated flow guide plate 1, two flow deflectors 13 are arranged at the positions, close to the other side edge, of the corrugated flow guide plate 1, two flow deflectors 13 are located at the two ends of the corrugated flow guide plate 1 respectively, each flow deflector 13 is of an arc-shaped platy structure, one end of each flow deflector 13 extends towards the corresponding flow guide hopper groove 10, the two drainage pipes are connected with the two bases 8 through the supporting ribs 7 respectively, the drainage pipes 5 are located above the bases 8 obliquely, the flange plates 6 are arranged at the two ends of each drainage pipe 5 respectively, one end of each of the two flow guide pipes 4 is arranged on the drainage pipes 5 respectively, the other ends of the two flow guide pipes 4 are connected with the bottoms of the two flow guide hopper grooves 10 above respectively, the flow guide pipes 4 communicate with the flow guide hopper grooves 10, the flow guide pipes 4 are telescopic pipes, each flow guide pipe 4 is formed by connecting two connecting pipes in a sleeving mode, the filter cylinders 12 are arranged in the flow guide hopper grooves 10, a drawing groove is formed in each flow guide hopper groove 10, the corresponding handle 18 is arranged on one side of each of the filter cylinders 12, the corresponding blocking net 17 is arranged at the bottom of each filter cylinder 12, the inserting plates 15 are arranged on one side edge of the corrugated flow guide plate 1, a plurality of connecting holes 14 are formed in each inserting plate 15, the connecting grooves 16 are formed in the other side edge of the corrugated flow guide plate 1 and correspond to the inserting plates 15, a plurality of connecting holes 14 are formed in the positions, corresponding to the connecting grooves 16, of the corrugated flow guide plate 1, each blocking net 17 consists of multiple layers of filter screens, the meshes of the multiple layers of filter screens are gradually decreased from the top down, the side surface, provided with the corresponding handle 18, of each filter cylinder 12 is an oblique surface, and each supporting rib 7 is of a triangular platy structure.
[28] When the device is used, firstly, the device is moved to the position below a waterproof roof by pushing the bases 8, then the hydraulic columns 3 are controlled to adjust the heights so that the convex drum part 2 of the corrugated guide plate 1 can be slightly lower than the roof, then the hydraulic columns 3 can be adjusted while a second group of devices are pushed by workers so that the inserting plates 15 at one end of a second group of corrugated guide plates 1 are matched with the connecting grooves 16 in the lower parts of the previous group of corrugated guide plates 1, then the corrugated guide plates 1 of the two groups of devices are connected through bolts, the drainage pipes 5 and the flange plates 6 of the two groups of devices are connected through bolts, a corresponding number of flow guide devices are assembled according to the waterproof length, and erection of the waterproof structure below the roof in the roadway is completed;
[29] when water leaks from the roof, the seepage water flowing down is collected towards the concave surfaces at low positions along the convex drum parts 2 through the corrugated flow guide plates 1, then collected into the flow guide hopper grooves 10, and finally filtered by the filter cylinders 12 and discharged through the flow guide pipes 4 and the drainage pipes 5 at the two ends in the concentrated mode; and
[30] gravels generated on the roof are blocked by the filter cylinders 12 to prevent the gravels from blocking the drainage pipes 5, and meanwhile, after the filter cylinders 12 are full of gravels, the gravels can be pulled out through the handles 18 to be cleaned.
[31] Embodiment II
[32] The difference between the embodiment II and Embodiment I lies in that a plurality of flow guide rods 19 are arranged on each concave surface on the corrugated flow guide plate 1; when the device is use, water vapor in top air and water drops infiltrated from the roof are concentrated and converged by the flow guide rods 19, and then the water vapor and the water drops flow into the flow guide plate along rod bodies, so that the flow guide and drainage efficiency is improved;
[33] through the design that the concave surfaces are located the positions, close to the two side edges of the convex drum part 2, of the corrugated flow guide plate 1, water flow can flow to the concave surfaces at concave positions along the convex drum part 2 to form flow concentration;
[34] through the design that the bases 8 are of L-shaped platy structures, the trundles 9 on the sides can be protected;
[35] through the design that the sealing gaskets 11 are arranged on the side surfaces, at the back of the corrugated flow guide plate 1, of the installation frames, the sealing gaskets 11 are attached to the wall of the roadway, so that the two ends of the corrugated flow guide plate 1 are attached to the wall of the roadway, and water flow is prevented from flowing out of gaps of the roadway;
[36] through the design that the other ends of the two arc-shaped strips extend towards the two concave surfaces on the corrugated flow guide plate 1 respectively, the water flow on the convex drum part 2 is assisted to be guided to the concave surfaces, and then the water flow is guided into the flow guide hopper grooves 10;
[37] through the design that each flow deflector 13 is of an arc-shaped platy structure and one end of each flow deflector 13 extends towards the corresponding flow guide hopper groove 10, the water flow is guided towards the directions of the flow guide hopper grooves 10 for assisted flow concentration;
[38] through the design that each blocking net 17 consists of multiple layers of filter screens and the meshes of the multiple layers offilter screens are gradually decreased from the top down, the blocking and filtering effects on the gravels are improved;
[39] the corrugated flow guide plate 1 is matched with the inserting plates 15 and the connecting grooves 16, the waterproof flow guide devices can be assembled for use, a certain number of flow guide devices can be assembled according to the waterproof length, and the device is more convenient to use;
[40] the corrugated flow guide plate 1 is matched with the flow guide hopper grooves and the filter cylinders 12, so that the seepage water can be collected into the flow guide hopper grooves 10 to be discharged in the concentrated mode, and the problem that the drainage pipes 5 are blocked by gravels after the seepage water is filtered by the filter cylinders 12 is avoided;
[41] the water flow flows to the concave surfaces along the convex drum part 2 and flows into the flow guide hopper grooves 10 in the concentrated mode, and after the water flow is filtered by the filter cylinders 12, through the design that the water flow is discharged through the flow guide pipes 4 and the drainage pipes 5, the seepage water can be collected and discharged in the concentrated mode, waterproof water guide is realized, and the water flow is filtered by the filter cylinders 12 without blocking the drainage pipes 5 by gravels; and
[42] the purpose that the device is convenient and rapid to move and erect, can preferably guide flow through the corrugated flow guide plate 1, and is provided with the blocking net structures 17 to prevent flow guide drainage pipes 15 from being blocked is achieved.
[43] The embodiments described above are preferred embodiments of the present disclosure and are not intended to limit the scope of implementation of the present disclosure. To those skilled in the art, some changes, namely equivalent modifications made in accordance with the present disclosure, which may be made without departing from the scope of the present disclosure should fall within the scope of the present disclosure.
[44] It is further noted that the specific embodiments described above have only described differences from other embodiments for simplicity and clarity, but those skilled in the art will appreciate that the specific embodiments are also independent technical solutions.

Claims (5)

WHAT IS CLAIMED IS:
1. A waterproof method for a coal mine roof, comprising the following steps: Firstly, according to the required waterproof length, pushing a corresponding number of waterproof flow guide devices to the position below a waterproof roof, and assembling the waterproof flow guide devices into a whole body; Secondly, then adjusting the heights of the waterproof flow guide devices to be slightly lower than the roof to complete erection of a waterproof structure; and Thirdly, collecting roof seepage water into drainage pipes through the waterproof flow guide devices to be discharged in a concentrated mode, and thus realizing waterproof flow guide of the roof seepage water, wherein the waterproof flow guide device consists of a corrugated flow guide plate, a convex drum part, hydraulic columns, flow guide pipes, drainage pipes, flange plates, supporting ribs, bases, trundles, flow guide hopper grooves, sealing gaskets, filter cylinders, flow deflectors, connecting holes, inserting plates, connecting grooves, blocking nets, handles and flow guide strips, the convex drum part is arranged at the middle position of the corrugated flow guide plate, the telescopic ends of the two hydraulic columns are connected with the bottom surface of the convex drum part on the corrugated flow guide plate, the two hydraulic columns are close to the two ends of the corrugated flow guide plate respectively, the fixed end of each hydraulic column is connected with a base, each base is of an L-shaped platy structure, a plurality of rotatable trundles are arranged at the bottom of each base, installation frames are arranged at the two ends of the corrugated flow guide plate respectively, the sealing gaskets are arranged on the side surfaces, at the back of the corrugated flow guide plate, of the installation frames, two flow guide hopper grooves are formed in each installation frame, the bottoms of the flow guide hopper grooves downwards extend out of the installation frames, the flow guide hopper grooves correspond to concave surfaces on the corrugated flow guide plate, the flow guide strips are arranged at the two ends of the convex drum part on the corrugated flow guide plate, two flow deflectors are arranged at the positions, close to one side edge, of the corrugated flow guide plate, two flow deflectors are arranged at the positions, close to the other side edge, of the corrugated flow guide plate, two flow deflectors are located at the two ends of the corrugated flow guide plate respectively, the two drainage pipes are connected with the two bases through the supporting ribs respectively, the drainage pipes are located above the bases obliquely, the flange plates are arranged at the two ends of each drainage pipe respectively, one end of each of the two flow guide pipes is arranged on the drainage pipes respectively, the other ends of the two flow guide pipes are connected with the bottoms of the two flow guide hopper grooves above respectively, the flow guide pipes communicate with the flow guide hopper grooves, each filter cylinder is arranged in the corresponding flow guide hopper groove, a drawing groove is formed in each flow guide hopper groove, the corresponding handle is arranged on one side of each of the filter cylinders, the corresponding blocking net is arranged at the bottom of each filter cylinder, the inserting plates are arranged on one side edge of the corrugated flow guide plate, a plurality of connecting holes are formed in each inserting plate, the connecting grooves are formed in the other side edge of the corrugated flow guide plate and correspond to the inserting plates, and a plurality of connecting holes are formed in the positions, corresponding to the connecting grooves, of the corrugated flow guide plate.
2. The waterproof method for a coal mine roof according to claim 1, wherein the corrugated flow guide plate is matched with the flow guide hopper grooves and the filter cylinders, so that the seepage water can be collected into the flow guide hopper grooves to be discharged in the concentrated mode, and the problem that the drainage pipes are blocked by gravels after the seepage water is filtered by the filter cylinders is avoided.
3. The waterproof method for a coal mine roof according to claim 1, wherein water flow flows to the concave surfaces along the convex drum part and flows into the flow guide hopper grooves in the concentrated mode, and after the water flow is filtered by the filter cylinders, the water flow is discharged through the flow guide pipes and the drainage pipes, so that the seepage water can be collected and discharged in the concentrated mode, waterproof water guide is realized, and the water flow is filtered by the filter cylinders without blocking the drainage pipes by gravels.
4. The waterproof method for a coal mine roof according to claim 1, wherein each flow guide strip consists of two arc-shaped strips, the two arc-shaped strips are connected at one end, and the other ends of the two arc-shaped strips extend towards the two concave surfaces on the corrugated flow guide plate respectively; wherein the flow guide pipes are telescopic pipes, and each flow guide pipe is formed by connecting two connecting pipes in a sleeving mode; wherein each blocking net consists of multiple layers of filter screens, and the meshes of the multiple layers of filter screens are gradually decreased from the top down; wherein the side surface, provided with the corresponding handle, of each filter cylinder is an oblique surface, and each supporting rib is of a triangular platy structure; wherein each flow deflector is of an arc-shaped platy structure, and one end of each flow deflector extends towards the corresponding flow guide hopper groove.
5. The waterproof method for a coal mine roof according to claim 1 or 2, wherein a plurality of flow guide rods are arranged on each concave surface on the corrugated flow guide plate; wherein the concave surfaces are located the positions, close to the two side edges of the convex drum part, of the corrugated flow guide plate.
FIG. 1 -1/4-
DRAWINGS
FIG. 2 -2/4-
FIG. 3 -3/4-
FIG. 4 -4/4-
AU2021104220A 2021-07-16 2021-07-16 Waterproof method and waterproof flow guide device for coal mine roof Ceased AU2021104220A4 (en)

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