Belt water retaining device for roadway water curtain

Abstract

The utility model discloses a belt water retaining device for a roadway water curtain, which comprises a water collecting tray arranged above a conveying belt, the water collecting tray is over against the top surface of a notch of the water curtain, the belt is wider than the conveying belt, a drain pipe is arranged at the bottom of the water collecting tray, and the drain pipe is connected to a water collecting tank. The water collecting tray is arranged between the roadway full-section water curtain and the belt conveyor, so that water is prevented from flowing to a rubber belt of a belt, and the conveying of the belt conveyor is prevented from being influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of verifying drilling orientation in a given area and relates to a belt water retaining device for a tunnel water curtain. Background Art

[0002] When the tunnel boring machine in the mine is cutting normally, a large amount of dust will be generated. When a water curtain is used to reduce dust, water will drip onto the belt of the belt conveyor through the gap of the water curtain where the belt conveyor passes, affecting the conveying of the belt conveyor. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a belt water blocking device for a tunnel water curtain to prevent water from flowing onto the adhesive tape of the belt.

[0004] The solution implemented by the utility model is: a belt water retaining device for a tunnel water curtain, including a water collecting tray installed above the conveyor belt, the water collecting tray facing the top surface of the notch of the water curtain, the width of which is greater than the conveyor belt, and a drainage pipe is provided at the bottom of the water collecting tray, which is connected to the water collecting trough.

[0005] Furthermore, two inverted U-shaped support frames are provided at the bottom of the water collection tray. The lower ends of the two support frames are fixedly connected on the same side by channel steels with the grooves facing downwards. The two channel steels are respectively clamped to the two roller support rods provided on both sides of the conveyor belt.

[0006] The effects of the utility model are as follows: a water collecting tray is arranged between the full-section water curtain of the laneway and the belt conveyor to prevent water from flowing onto the adhesive tape of the belt and affecting the conveying of the belt conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Fig. 1 This is a schematic diagram of the front structure of the roadway dust prevention device;

[0008] Fig. 2 This is a schematic diagram of the water collection tray installation structure;

[0009] Fig. 3 It is a side view structural diagram of the tunnel dust prevention device. DETAILED DESCRIPTION

[0010] The present invention will be further described below with reference to specific embodiments.

[0011] Example 1: Figs. 1-3 As shown, a belt water retaining device for a tunnel water curtain includes a water collecting tray 8 installed above the conveyor belt 4, the water collecting tray 8 is opposite to the top of the notch 7, and the width is greater than the belt of the conveyor belt 4. A drainage pipe 9 is provided at the bottom of the water collecting tray 8, and the drainage pipe 9 is connected to the water collecting trough 6. A water collecting tray is installed between the full-section water curtain of the tunnel and the belt conveyor to prevent water from flowing onto the belt of the belt.

[0012] In order to stably support the water collecting tray, two inverted U-shaped support frames 10 are provided at the bottom of the water collecting tray 8. The two lower ends of the two support frames 10 are fixedly connected on the same side by channel steels 11 with the grooves facing downward. The two channel steels 11 are respectively clamped to the two roller support rods 15 set on both sides of the conveyor belt 4. The two strip-shaped U-shaped channel steels are clamped to the roller support rods 15, which can achieve stable support. The container is also convenient for position adjustment and detachable transportation, and loading and unloading are convenient. The length of one side of the water collecting tray facing the working surface is greater than the length on the other side, which is convenient for collecting extra water droplets generated by the spray on that side.

[0013] Example 2: Figs. 1-3 As shown, a tunnel dust prevention device includes a full-section water curtain frame 1, a dustproof net 2 and a spray pipe 3. The top of the full-section water curtain frame 1 is an arched structure, and the dustproof nets 2 are arranged on both sides. The spray pipe 3 is arched and installed on one side of the top of the full-section water curtain frame 1, and the spray head of the spray pipe 3 is installed toward the dustproof net 2 near the top. The full-section water curtain frame 1 is provided with a gap 7 at the conveyor belt 4, and a door 5 is provided near the middle. A water collection trough 6 is provided on the ground opposite the full-section water curtain 1. The dustproof net 2 is arranged at all except the gap 7. The water collection trough 6 is 300 mm wide and 300 mm deep. The horizontal water ditch is used to discharge water along the ditch; the spray is changed to a full water curtain skeleton + double dust net + spray, and the spray is sprayed towards the dust net to form a water curtain. After installing three dust-removing devices, the dust reduction effect can be greatly improved. Through tests, the dust concentration of the working surface of the tunnel boring machine during normal cutting is 196.8mg / m³, and the respirable dust concentration is 131.8mg / m³. The comprehensive dust concentration outside the third water curtain is 88.6mg / m³, and the respirable dust concentration is 33.5mg / m³.

[0014] In order to prevent the water of the water curtain from flowing into the water collecting tray through the gap, a water collecting tray 8 is installed above the conveyor belt 4. The water collecting tray 8 is opposite to the top of the gap 7 and is wider than the belt of the conveyor belt 4. A drain pipe 9 is provided at the bottom of the water collecting tray 8. The drain pipe 9 is connected to the water collecting trough 6. A water collecting tray is installed between the full-section water curtain of the tunnel and the belt conveyor to prevent water from flowing onto the belt.

[0015] In order to stably support the water collecting tray, two inverted U-shaped support frames 10 are provided at the bottom of the water collecting tray 8. The two lower ends of the two support frames 10 are fixedly connected on the same side by channel steels 11 with the grooves facing downward. The two channel steels 11 are respectively clamped to the two roller support rods 15 set on both sides of the conveyor belt 4. The two strip-shaped U-shaped channel steels are clamped to the roller support rods 15, which can achieve stable support. The container is also convenient for position adjustment and detachable transportation, and loading and unloading are convenient. The length of one side of the water collecting tray facing the working surface is greater than the length on the other side, which is convenient for collecting extra water droplets generated by the spray on that side.

[0016] For the convenience of moving, the full-face water curtain framework 1 is connected in a straight wall semicircular arch shape by transversely and longitudinally detachably fixing and connecting four divided pipes, can meet the condition of arranging the dust screen in the full face, can conveniently realize the movement, and the detachable structure realizes the modular structure, and is more beneficial to the movement (usually moved once a month).

[0017] In order to install stably, the spray pipe 3 is fixedly connected to the roof 12 of the roadway by a clamp, the spray pipe 3 is connected to the water pump through a pipeline, stable spraying of the spray pipe is realized through the water pump, and the spray pipe is installed towards one side of the full-face water curtain framework 1 of the working face.

[0018] In order to realize monitoring of the dust concentration, the belt water blocking device for the roadway water curtain further comprises a dust sensor 13, the dust sensor 13 is installed at the top of the roadway in front of the water curtain, monitoring of the dust concentration can be realized, when the monitored data meet the need of starting the water pump, the water pump is controlled to be opened.

[0019] In order to realize automatic dust removal, the dust sensor 13 is electrically connected to a controller, the controller is connected to the water pump, when the dust concentration is greater than a set value, the water pump is started to spray and form a dust-settling water curtain, and energy consumption is saved.

[0020] In order to automatically realize opening and closing when a person passes through, the belt water blocking device for the roadway water curtain further comprises a passing person identification module 14 installed at the top of the roadway in front of the water curtain, the passing person identification module 14 adopts a camera, and the passing person identification module is connected to the controller, when a person is detected to pass through, the water pump is closed, and the formation of the water curtain is stopped.

[0021] Before the transformation: When the fully-mechanized coal winning machine normally cuts, the comprehensive dust concentration of the working face is 198.4 mg / m³, the respirable dust concentration is 142.5 mg / m³, the comprehensive dust concentration outside the third water curtain is 175.6 mg / m³, and the respirable dust concentration is 135.7 mg / m³.

[0022] After the transformation: When the fully-mechanized coal winning machine normally cuts, the dust concentration of the working face is 196.8 mg / m³, the respirable dust concentration is 131.8 mg / m³, the comprehensive dust concentration outside the third water curtain is 88.6 mg / m³, and the respirable dust concentration is 33.5 mg / m³.

[0023] The comprehensive dust dust-settling rate is increased by 43.5%, and the respirable dust dust-settling rate is increased by 69.8%.

[0024] Calculation:

[0025] Before the transformation: The comprehensive dust dust-settling rate is (198.4-175.6) / 198.4≈11.5%, and the respirable dust dust-settling rate is (142.5-135.7) / 142.5≈4.8%.

[0026] After modification: the comprehensive dust dust reduction rate is (196.8-88.6) / 196.8≈55%, and the respirable dust dust reduction rate is (131.8-33.5) / 131.8≈74.6%

[0027] The comprehensive dust dust reduction rate is increased by 55%-11.5%=43.5%, and the respirable dust dust reduction rate is increased by 74.6%-4.8%=69.8%.

[0028] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A belt water retaining device for a tunnel water curtain, characterized in that: Including the installation of the water collecting tray (8) above the conveying belt (4), the water collecting tray (8) is opposite to the gap (7) of the water curtain, the width is greater than the belt of the conveying belt (4), the bottom of the water collecting tray (8) is provided with a drain pipe (9), and the drain pipe (9) is connected to the water collecting tank (6).

2. A belt water damper device for a water curtain in a mine roadway according to claim 1, characterised in that, The bottom of the water collecting tray (8) is provided with two inverted U-shaped support frames (10), the two lower ends of the two support frames (10) are fixedly connected on the same side through the channel steel (11), and the grooves face downward, and the two channel steels (11) are respectively clamped on the two supporting rods (15) provided on the two sides of the conveying belt (4).

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