Device for probing the depth of silt in small water intake wells

Abstract

This utility model discloses a device for probing the depth of silt in a small water-absorbing well, relating to the field of mine safety production technology. It aims to solve the technical problem of existing technologies requiring workers to periodically descend to the bottom of small wells to probe the depth of silt. The device includes a water-absorbing well and a silt-removal component. The silt-removal component includes a measuring disc. This utility model eliminates the need for workers to repeatedly descend into the small well to probe the silt depth. A water-stop edge is hinged to one side of the long arc-shaped through-hole of the disc, and a soft baffle forming an "inverted umbrella structure" is installed on the inner wall of the water-stop edge. When in contact with silt, the folds naturally expand with pressure. Several elastic contact plates are provided on the inner wall of the soft baffle. When descending, the soft baffle blocks the long arc-shaped through-hole; when pulling upwards, it opens, increasing the buoyancy of the disc during descent and reducing the resistance during upward pulling. When lowered to the silt surface, it remains stationary at approximately the silt surface, allowing the silt depth of the small well to be calculated based on the meter markings on the rope at this point.

Description

Technical Field

[0001] This utility model relates to the field of mine safety production technology, and more specifically, to a device for detecting the depth of silt in small water-absorbing wells. Background Technology

[0002] Underground pump stations are responsible for drainage in mines and are a crucial link in mine safety. There are generally two pump stations in a mine: a central pump station and a mining area pump station. The water tanks in each pump station are responsible for storing and settling the mine's water inflow. According to Article 314 of the "Coal Mine Safety Regulations," "The silt in water tanks, settling ponds, and ditches should be cleaned promptly, and must be cleaned once a year before the rainy season." At the same time, the empty capacity of the water tanks should always be maintained at more than 50% of the total capacity. Because coal dust in the water tanks can flow into the small wells with the water, the coal content in the water in the small wells is relatively high, causing significant wear and tear on the impellers and other components of the water pumps. In severe cases, the coal dust in the small wells can completely block the water pump inlet pipe, preventing the pumps from pumping water and posing a safety hazard to the mine's water control.

[0003] Existing technology requires workers to periodically descend to the bottom of the well to detect the depth of the silt. When the silt reaches the depth that needs to be cleaned, workers need to descend to the bottom of the well. Due to poor ventilation, workers have difficulty breathing. After multiple descents to the bottom of the well, the temperature at the bottom of the well is very high, and workers are prone to heatstroke or suffocation. In view of this, we propose a device for detecting the depth of silt in water-absorbing wells. Utility Model Content

[0004] The purpose of this invention is to provide a device for detecting the depth of silt in small water-absorbing wells, so as to solve the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: it includes a water intake well and a dredging component, wherein the dredging component includes a measuring disc, and a measuring line is provided at the center of one side of the measuring disc;

[0006] The measuring disk includes a disc, and a number of long arc-shaped through holes are arranged in a circular equidistant array on the outer periphery of the disc. A water-stop edge adapted to the edge line is hinged to one side of the long arc-shaped through hole, and a soft baffle is provided through the water-stop edge. The water-stop edge protrudes from one side of the disc.

[0007] The soft protective skin has several pleats along its edge, which are radial and form an "inverted umbrella-shaped structure".

[0008] The inner wall of the soft baffle is provided with several elastic contact pieces, which are symmetrically distributed.

[0009] As a further description of the above technical solution: the dredging assembly also includes a winch and pulley set at the top of the suction well, the measuring line is wound on the outer wall of the winch, and the end of the measuring line passes through the pulley and is fixed at the axis on one side of the measuring disc.

[0010] As a further description of the above technical solution: a scale is also installed at the top of the water intake well, and the scale can be used in conjunction with the measuring line.

[0011] As a further description of the above technical solution: the outer wall of the measuring line is provided with several reflective strip markings in a straight, equidistant array.

[0012] As a further description of the above technical solution: the disc is welded with leveling handles at the four corners on the other side of the protruding side of the waterstop, and lifting lugs are welded at the center positions corresponding to the four leveling handles.

[0013] As a further description of the above technical solution: the soft baffle is made of highly elastic rubber material.

[0014] The device for detecting the depth of silt in a small water-absorbing well provided by the present invention has the following beneficial effects:

[0015] When probing the depth of silt in a small water intake well, this invention allows maintenance personnel to simply stand outside the platform railing and slowly lower the probe disc into the well using a winch. A water-stop edge is hinged to one side of the disc's long, arc-shaped through-hole, and a soft baffle forming an "inverted umbrella structure" is installed on the inner wall of the water-stop edge. When unfolded, it forms a funnel shape, and the folds naturally expand under pressure upon contact with the silt. Several elastic contact plates are provided on the inner wall of the soft baffle, which assist in increasing buoyancy in the water flow and form "multi-point support" with the baffle body when in contact with the silt. During descent, the soft baffle blocks the long, arc-shaped through-hole; during retrieval, it opens, increasing buoyancy during descent and reducing resistance during retrieval. Once lowered to the silt surface, it remains stationary at approximately the silt surface. The depth of the silt in the well can then be calculated based on the meter readings on the rope. This eliminates the need for personnel to repeatedly descend into the well to probe the silt depth, solving the problem of existing technologies requiring personnel to periodically descend to the bottom of the well to probe the silt depth. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0018] Figure 2 A front view structural schematic diagram of the measuring disc provided in an embodiment of this utility model;

[0019] Figure 3 This is a side view of the measuring disc provided in an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Water intake well; 2. Dredging components;

[0022] 201. Winch; 202. Scale; 203. Pulley; 204. Measuring line; 205. Measuring disc;

[0023] 2051, disc; 2052, long arc-shaped through hole; 2053, soft baffle; 2054, pleats; 2055, water-stop edge; 2056, elastic contact piece; 2057, leveling handle; 2058, hanging lug. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] Please see Figures 1-3 The present invention provides a technical solution including a water intake well 1 and a dredging component 2. The dredging component 2 includes a measuring disc 205, and a measuring line 204 is provided at the center of one side of the measuring disc 205.

[0026] Preferably, the measuring line 204 is made of steel wire rope, and its length is determined according to the actual depth of the water intake well 1 to ensure that it can be completely lowered to the surface of the silt at the bottom of the well.

[0027] In another embodiment of the present invention, preferably, the dredging component 2 further includes a winch 201 and a pulley 203 disposed at the top of the suction well 1, the measuring line 204 is wound on the outer wall of the winch 201, and the end of the measuring line 204 passes through the pulley 203 and is fixed at the axis on one side of the measuring disc 205.

[0028] Preferably, the winch 201 is installed on the arched wall of the small well opening. The winch 201 is designed with a double-bearing manual crank handle, with a deep groove in the middle to ensure that the measuring line 204 is neatly wound and does not come off the groove when cranking and lowering. A through hole is drilled at the center of the groove to insert the rope end, ensuring that the rope does not easily fall off during the back-and-forth winding process. The handle is inserted into a suitable position welded to the right bearing baffle with expansion bolts to ensure sufficient space during manual cranking. Symmetrical through holes are drilled at the lower end of the bearings at both ends, and bolt rods are inserted to lock the crank handle. The lower left side uses a thick steel plate to be horizontally fixed to the inner wall of the small well arch with holes drilled at the center and four corners of the expansion bolts. Holes are drilled in the inner wall according to the shape of the small well arch to fix and install the pulley 203 device for the measuring line 204. The center position of the small well arch is selected as the test point for lowering the detection tool, and the length of the measuring line 204 is determined according to the depth of the small well.

[0029] In another embodiment of the present invention, preferably, a scale 202 is also installed at the top of the water intake well 1. The scale 202 can be used in conjunction with the measuring line 204 to facilitate maintenance personnel to intuitively read the silt depth data.

[0030] In another embodiment of this utility model, the outer wall of the measuring line 204 is provided with several reflective strips arranged in a straight, equidistant array. In a dimly lit environment underground, the reflective strips can reflect light, allowing maintenance personnel to more clearly observe the length of the measuring line 204 as it is lowered, thereby further improving the accuracy of the readings.

[0031] The design is simple and easy to operate. It allows for a more intuitive determination of the silt depth in the small well by observing the scale 202. It eliminates the need for staff to go deep into the small well to check the silt depth, ensuring the safety of the water pump drainage and guaranteeing the normal production of the mine.

[0032] The measuring disk 205 includes a disk 2051. The outer periphery of the disk 2051 is provided with a number of long arc-shaped through holes 2052 in a circumferentially equidistant array. A water-stop edge 2055 adapted to the edge line is hinged to one side of the long arc-shaped through hole 2052, and a soft baffle 2053 is provided through the water-stop edge 2055. The water-stop edge 2055 protrudes from one side of the disk 2051.

[0033] The opening angle of the waterstop 2055 should be less than 90 degrees. When submerging, the soft baffle 2053 blocks the long arc-shaped through hole 2052, and opens when pulling up. The waterstop 2055 not only avoids the deformation of the soft baffle 2053 caused by the impact of water flow when lowering, but also enhances the adsorption effect on the surface silt by using the protrusions when in contact with silt, thus reducing sinking.

[0034] Preferably, the disc 2051 is made of a steel plate with a certain self-weight, and the waterstop 2055 is fixedly connected to the disc 2051 by bolts;

[0035] The soft backing 2053 has several pleats 2054 along its edge, which radiate outwards and form an "inverted umbrella structure".

[0036] When in contact with silt, the folds 2054 will naturally expand under pressure, increasing the contact area with the silt and enhancing the surface tension, so that the measuring plate 205 can be stably placed on the silt surface, avoiding sinking too deep and causing inaccurate measurements.

[0037] The inner wall of the soft baffle 2053 is provided with several elastic contact pieces 2056, which are symmetrically distributed. One end of the elastic contact piece 2056 is fixed to the soft baffle 2053, and the other end hangs down naturally. In the water flow, the elastic contact piece 2056 is impacted by the water flow and unfolds to help increase buoyancy. When it comes into contact with silt, the elastic contact piece 2056 will embed into the surface silt, forming a "multi-point support" with the soft baffle 2053, which further improves the stability of the measuring plate 205 and avoids single-point sinking.

[0038] In another embodiment of this utility model, the soft baffle 2053 is made of a highly elastic rubber material.

[0039] Preferably, it is made of highly elastic nitrile rubber, which utilizes its slightly rough surface texture and moderate stickiness to enhance its adhesion to silt. The oil resistance and abrasion resistance of nitrile rubber can adapt to the complex composition of mine water, while its elastic recovery properties can produce slight deformation when in contact with silt, increasing the bonding area and enhancing surface tension.

[0040] In another embodiment of the present invention, the disc 2051 is welded with leveling handles 2057 at the four corners on the side opposite to the protruding side of the waterstop 2055, and lifting lugs 2058 are welded to the center positions of the four leveling handles 2057.

[0041] A lifting lug 2058 is welded at the center position to connect the measuring line 204, i.e., the wire rope, to keep the disc 2051 parallel when it is in a vertical state;

[0042] To facilitate maintenance personnel in adjusting the level of the disc 2051 during installation or debugging, lifting lugs 2058 are welded to the center positions of the four leveling handles 2057. The lifting lugs 2058 are used to connect the measuring line 204 to ensure that the disc 2051 remains parallel when in a vertical state.

[0043] Working principle: This embodiment provides a device for detecting the depth of silt in a small water-absorbing well. When using it...

[0044] The maintenance personnel stood on the outside of the platform railing and slowly lowered the measuring plate 205 into the water intake well 1 by cranking the winch 201. Because the measuring plate 205 itself has a certain weight and can be kept vertical by the cooperation of the pulley 203 and the lifting lug 2058, it is difficult to swing left and right due to the buoyancy of the water surface during the lowering process.

[0045] The long arc-shaped through hole 2052 of the disc 2051 is hinged to a waterstop 2055 on one side with an opening angle of less than 90 degrees. A soft baffle 2053 forming an "inverted umbrella structure" is installed on the inner wall of the waterstop 2055. When unfolded, it takes the shape of a trumpet. In the water flow, the soft baffle 2053 and the elastic contact piece 2056 can increase the buoyancy and make the measuring disc 205 descend smoothly.

[0046] When in contact with silt, the folds 2054 naturally expand under pressure, and the elastic contact piece 2056 embeds into the surface silt, forming a "multi-point support" with the baffle body, enhancing the surface tension with the silt. At the same time, when pulled up, the cover formed by the water-stopping line 2055 and the soft baffle 2053 opens, allowing water to flow through the inner wall of the long arc-shaped through hole 2052, and also reducing the resistance when pulling up. After the measuring plate 205 stops at approximately the position on the silt surface, the maintenance personnel can read the scale in meters by observing the corresponding position of the reflective strip mark on the measuring line 204 and the scale 202, and thus calculate the silt depth in the suction well.

[0047] This device eliminates the need for workers to repeatedly venture into the small well to check the depth of the silt, reducing operational risks and improving work efficiency.

[0048] The soft protective film 2053 can increase the buoyancy of the disc 2051 when it dives and reduce the drag when it pulls up. The principle is as follows:

[0049] The elongated arc-shaped through-hole 2052 on the edge of the disc 2051 was originally intended to reduce water flow obstruction during descent. However, a simple through-hole would allow water to flow directly through, failing to generate an upward lifting force. The soft baffle 2053, hinged below the elongated arc-shaped through-hole 2052 via a water-stop edge 2055, possesses a certain degree of flexibility and elasticity. During descent, as the water flow impacts below the elongated arc-shaped through-hole 2052, the water-stop edge 2055 and the soft baffle 2053 will be pushed upwards by the water pressure. The upper cover covers the long arc-shaped through hole 2052, while the soft baffle 2053 bulges slightly to catch the water flow and convert some of the impact force of the water flow into upward buoyancy. The arc-shaped contour of the soft baffle 2053 matches the edge of the long arc-shaped through hole 2052. When the water flows over the surface of the soft baffle 2053, it generates an upward lift force, which further enhances the lifting effect on the disc 2051 and offsets some of the sinking force caused by the weight of the disc 2051, thereby increasing the overall buoyancy.

[0050] When the disc 2051 is pulled up, the water flow impacts the cover consisting of the water-stop edge 2055 and the soft baffle 2053, causing the water-stop edge 2055 and the soft baffle 2053 to be lifted down. The inner wall of the long arc-shaped through hole 2052 allows water to flow through and also reduces the resistance when pulling up.

[0051] The above description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for detecting the depth of silt in a small water-absorbing well, characterized in that, It includes a water intake well (1) and a dredging component (2). The dredging component (2) includes a measuring plate (205), and a measuring line (204) is provided at the center of one side of the measuring plate (205). The measuring disk (205) includes a disk (2051). The outer periphery of the disk (2051) is provided with a plurality of long arc-shaped through holes (2052) arranged in a circumferentially equidistant array. A water-stop edge (2055) adapted to the edge line is hinged to one side of the long arc-shaped through hole (2052), and a soft baffle (2053) is provided through the water-stop edge (2055). The water-stop edge (2055) protrudes from one side of the disk (2051). The soft protective cover (2053) has several pleats (2054) designed along its edge. The pleats (2054) are radial and form an "inverted umbrella structure". The inner wall of the soft baffle (2053) is provided with a number of elastic contact pieces (2056) and the elastic contact pieces (2056) are symmetrically distributed.

2. The device for detecting the depth of silt in a small water-absorbing well according to claim 1, characterized in that, The dredging assembly (2) also includes a winch (201) and a pulley (203) set at the top of the suction well (1). The measuring line (204) is wound on the outer wall of the winch (201), and the end of the measuring line (204) passes through the pulley (203) and is fixed at the axis on one side of the measuring disc (205).

3. The device for detecting the depth of silt in a small water-absorbing well according to claim 2, characterized in that, The top of the water intake well (1) is also equipped with a scale (202), which can be used in conjunction with the measuring line (204).

4. The device for detecting the depth of silt in a small water-absorbing well according to claim 3, characterized in that, The outer wall of the measuring line (204) is provided with several reflective strips in a straight, equidistant array.

5. The device for detecting the depth of silt in a small water-absorbing well according to claim 4, characterized in that, The disc (2051) has leveling handles (2057) welded to the four corners on the side opposite to the protruding side of the waterstop (2055), and lifting lugs (2058) are welded to the center positions of the four leveling handles (2057).

6. The device for detecting the depth of silt in a small water-absorbing well according to claim 5, characterized in that, The soft baffle (2053) is made of highly elastic rubber.

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