Energy-saving water and air washing pipe device
By combining a wind-water conversion amplifier and a high-pressure air source, the Coanda effect is used to form a high-pressure vortex water mist, which solves the problem of high water consumption in the traditional backfilling production mode, improves the quality of the backfill body and mining safety, and achieves the effect of energy conservation and emission reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI MAGANG MINING RESOURCES GRP GUSHAN MINING CO LTD BAIXIANGSHAN MINING BRANCH
- Filing Date
- 2025-04-15
- Publication Date
- 2026-06-05
Smart Images

Figure CN224321998U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mine backfilling technology, specifically to an energy-saving air-water pipe washing device. Background Technology
[0002] With increasing global emphasis on environmental protection and sustainable development, the mining industry is facing higher environmental requirements and challenges in resource utilization efficiency. Currently, backfilling mining is widely used in underground mining. This method not only effectively treats and utilizes tailings, reducing waste emissions, but also significantly improves mining safety and recovery rates, thereby reducing negative environmental impacts. However, traditional backfilling production methods have some pressing issues, particularly regarding water consumption and energy efficiency.
[0003] In traditional backfilling production methods, water flushing of pipelines is the primary method for flushing pipes after backfilling. Due to the large diameter and long transport distance of backfilling pipelines, a significant amount of water is consumed during flushing and cleaning after each production run. This not only increases mine operating costs but may also lead to a decline in the quality of the backfill material, affecting overall mining efficiency. Furthermore, the large water usage increases the burden on underground drainage systems, resulting in additional energy consumption and drainage treatment costs, further exacerbating resource waste and environmental pressure.
[0004] Therefore, there is an urgent need for a more efficient and energy-saving filling pipeline cleaning technology to reduce water consumption, improve the quality of filling materials, and reduce the load on underground drainage systems, thereby promoting the development of mining in a more environmentally friendly and sustainable direction. Utility Model Content
[0005] This utility model provides an energy-saving air-water pipe cleaning device, which can effectively perform operations such as cleaning and lubricating of filling pipelines, reduce the amount of water entering the working area, ensure the strength of the filling body, and improve the safety and reliability of mining.
[0006] The technical solution to the technical problem solved by this utility model is as follows:
[0007] According to one aspect of the present invention, an energy-saving air-water pipe cleaning device is provided, comprising an air-water conversion amplifier, a water tank, and a high-pressure air source; the air-water conversion amplifier includes an outer sleeve and an inner sleeve that are nested together on one side, the outer side of the inner sleeve having an annular groove located on the inner side of the outer sleeve, the outer sleeve having a compressed air inlet corresponding to the position of the annular groove, and its inner wall having a protrusion corresponding to the end position of the annular groove, forming an annular internal narrow slit with the end of the annular groove; the compressed air inlet and the outer end of the inner sleeve are respectively connected to the high-pressure air source and the water tank through connecting pipes, and the two connecting pipes are respectively provided with an air valve and a water valve.
[0008] Furthermore, the spacing of the internal slits is 0.05~0.15 mm.
[0009] Furthermore, the outer and inner sleeves can move left and right relative to each other and are connected and fixed by a retaining ring.
[0010] Furthermore, the top of the annular groove end, corresponding to the protrusion on the inner wall of the outer jacket, is designed with a smooth rounded shape.
[0011] Furthermore, the water tank is an open-top tank.
[0012] Furthermore, the high-pressure gas source is a high-pressure gas storage tank.
[0013] Furthermore, the inner wall of the outer sleeve is provided with a second flared inner wall in the shape of a trumpet extending outward from its protrusion; the inner sleeve is provided with a first flared inner wall in the shape of a trumpet extending outward.
[0014] Furthermore, the angle of the first outwardly expanding inner wall is smaller than the angle of the second outwardly expanding inner wall.
[0015] Furthermore, it also includes a filling pipe, a three-way valve, and a mixing tank. The three-way valve includes a first interface, a second interface, and a third interface. The outer end of the outer casing is connected to the third interface of the three-way valve through a connecting pipe. The first interface and the second interface are respectively connected to the filling pipe. A slurry valve is provided on the filling pipe connected to the first interface, and the mixing tank is provided at the end.
[0016] Compared with the prior art, the energy-saving water pipe cleaning device of this utility model has the following advantages:
[0017] (1) The present invention has a novel, simple and reasonable structure, is easy to manufacture and implement, and is easy to operate. It can effectively solve the problem of large water volume in the filling and washing pipe in the prior art, which reduces the concentration of filling slurry and thus reduces the strength of the filling body, and effectively improves the safety and reliability of mining.
[0018] (2) By designing a wind-water conversion amplifier, the high-pressure gas is drawn into the air intake side by the annular groove and internal narrow slit of the wind-water conversion amplifier through the Coanda effect principle, and blown out to the exhaust side together with the compressed gas. This not only increases the flow rate of the front flushing water, but also enables the tail flushing water to form a high-pressure vortex water mist, which can more thoroughly flush the filling pipe.
[0019] (3) The water tank of this utility model adopts an open design. After the water in the water tank is emptied each time, the ambient air can be drawn in by the high-pressure air of the wind-water conversion amplifier through the connecting water pipe, which increases the air volume, reduces the consumption of water and gas resources, and also ensures the safety of underground filling.
[0020] (4) The wind-water conversion amplifier in this utility model has an adjustable outer and inner sleeve design and is connected by a fixing ring, so the width of the internal narrow slit can be adjusted as needed.
[0021] (5) The wind-water conversion amplifier in this utility model is designed with the first and second outer expansion inner walls of the outer and inner sleeves to facilitate the intake of water source in the water tank and ambient air, and also facilitates the discharge of water mist and high-pressure gas from the outlet side for pipeline flushing. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the structure of the wind-water conversion amplifier and the direction of water or gas flow in this utility model;
[0024] In the diagram: 1. Filling pipe; 2. Three-way valve; 201. First interface; 202. Second interface; 203. Third interface; 3. Air-water conversion amplifier; 31. Outer sleeve; 32. Inner sleeve; 33. Fixing ring; 34. Compressed air inlet; 35. Ring groove; 36. First outer expansion inner wall; 37. Second outer expansion inner wall; 38. Internal narrow slit; 4. Water valve; 5. Water tank; 6. High-pressure air source; 7. Air valve; 8. Mixing tank; 9. Slurry valve; 10. Connecting pipe. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art to which this disclosure pertains. The terms "upper," "lower," "left," "right," "front," and "rear" used in the present patent application specification and claims are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship also changes accordingly. Any aspects not detailed in the present utility model are well-known technologies to those skilled in the art.
[0026] Example 1:
[0027] Please see Figure 1 and Figure 2This utility model provides an energy-saving wind and water pipe cleaning device, which includes a wind and water conversion amplifier 3, a water tank 5, and a high-pressure air source 6, preferably a high-pressure air storage tank; the wind and water conversion amplifier 3 includes an outer sleeve 31 and an inner sleeve 32 nested together on one side, the outer wall of the inner sleeve 32 is provided with an annular groove 35 located inside the outer sleeve 31, and a compressed air inlet 34 is provided on the outer sleeve 31 at the position corresponding to the annular groove 35, and its inner wall is provided with a protrusion at the end position of the annular groove 35, forming an annular internal narrow slit 38 with the end of the annular groove 35; the outer ends of the compressed air inlet 34 and the inner sleeve 32 are respectively connected to the high-pressure air source 6 and the water tank 5 through connecting pipes 10, and air valves 7 and water valves 4 are respectively provided on the two connecting pipes 10.
[0028] In application, the outer end of the outer sleeve 31 is used to connect with the pipe to be flushed, and this outer end is the air intake side. The outer end of the inner sleeve 32 is the air outlet side. When the water valve 4 is opened, the flushing water in the water tank 5 flows into the connecting pipe and the pipe to be flushed. Then the air valve 7 is opened, and high-pressure air is injected into the pipe to be flushed through the air-water conversion amplifier 3. When the compressed gas enters the air-water conversion amplifier 3 through the compressed air inlet 34, and passes through the annular groove 35 and the internal narrow slit 38, it is sprayed out to the air outlet side. Through the Coanda effect principle and the structural design of the annular groove 35 and the internal narrow slit 38 of the air-water conversion amplifier 3, the air intake side can bring in up to 25 times the ambient air or some flushing water is sucked in and blown out to the air outlet side together with the original compressed air. The high-pressure air can not only increase the flow rate of the front flushing water, but also make the tail flushing water form a high-pressure vortex water mist, which flushes the pipe more thoroughly and reduces water and air consumption, achieving the purpose of energy saving and emission reduction, while also ensuring the safety of underground filling.
[0029] In a preferred embodiment, the spacing of the internal slits 38 is preferably 0.05 to 0.15 mm.
[0030] As a preferred embodiment, the top of the annular groove 35 corresponding to the protrusion on the inner wall of the outer jacket 31 is rounded to facilitate the flow of compressed air.
[0031] As a preferred embodiment, the water tank 5 is preferably an open tank. After the water in the water tank is emptied each time, ambient air can be drawn in by the high-pressure air of the air-water conversion amplifier 3 through the water pipe, thereby increasing the air volume.
[0032] In a preferred embodiment, the inner wall of the outer sleeve 31 is provided with a funnel-shaped second outwardly expanding inner wall 37 extending outward from its protrusion; the inner sleeve 32 is provided with a funnel-shaped first outwardly expanding inner wall 36 extending outward. The angle of the first outwardly expanding inner wall 36 is preferably smaller than the angle of the second outwardly expanding inner wall 37, which facilitates the intake of water source and ambient air in the water tank, and also facilitates the discharge of water mist and high-pressure gas from the outlet side for pipe flushing.
[0033] Example 2
[0034] like Figure 2 As shown, based on Embodiment 1, the outer sleeve 31 and the inner sleeve 32 are assembled in a way that allows them to move left and right relative to each other, and are connected and fixed by a fixing ring 33. This allows for adjustment of the width of the internal narrow slit as needed, thereby adjusting the gap size of the internal narrow slit 38 to change the air intake volume to meet the needs of different applications. After the gap is set, the fixing ring 33 is tightened and fixed.
[0035] Example 3
[0036] Based on Embodiment 1 or 2, the energy-saving air-water flushing device provided in this embodiment further includes a filling pipe 1, a three-way valve 2, and a mixing tank 8. The three-way valve 2 includes a first interface 201, a second interface 202, and a third interface 203. The outer end of the outer sleeve 31 is connected to the third interface 203 of the three-way valve 2 through a connecting pipe 10. The first interface 201 and the second interface 202 are respectively connected to the filling pipe 1. A slurry valve 9 is provided on the filling pipe 1 connected to the first interface 201, and a mixing tank 8 is provided at the end. During the filling operation, the first interface 201 and the second interface 202 of the three-way valve 2 are connected, the slurry valve 9 is opened, and the slurry is injected into the mine through the filling pipe 1 to fill the underground goaf. After the filling operation is completed, the three-way valve 2 is controlled to form a passage between the third interface 203 and the second interface 202, and then the filling pipe 1 can be flushed in the manner of Embodiment 1.
Claims
1. An energy-saving water-cooled pipe cleaning device, characterized in that, The system includes a feng shui conversion amplifier (3), a water tank (5), and a high-pressure air source (6). The feng shui conversion amplifier (3) includes an outer sleeve (31) and an inner sleeve (32) that are nested together on one side. An annular groove (35) is provided on the outer side of the inner sleeve (32) at the position inside the outer sleeve (31). A compressed air inlet (34) is provided on the outer sleeve (31) at the position corresponding to the annular groove (35). A protrusion corresponding to the end position of the annular groove (35) is provided on its inner wall, forming an annular internal narrow slit (38) with the end of the annular groove (35). The compressed air inlet (34) and the outer end of the inner sleeve (32) are respectively connected to the high-pressure air source (6) and the water tank (5) through connecting pipes (10). An air valve (7) and a water valve (4) are respectively provided on the two connecting pipes (10).
2. The energy-saving water-cooled pipe washing device according to claim 1, characterized in that, The spacing of the internal slits (38) is 0.05~0.15 mm.
3. The energy-saving water-cooled pipe washing device according to claim 1, characterized in that, The outer sleeve (31) and inner sleeve (32) can move left and right relative to each other and are connected and fixed by a fixing ring (33).
4. The energy-saving water-cooled pipe washing device according to claim 1, characterized in that, The top of the annular groove (35) is rounded, corresponding to the protrusion on the inner wall of the outer jacket (31).
5. The energy-saving water-cooled pipe washing device according to claim 1, characterized in that, The water tank (5) is an open tank.
6. The energy-saving water-cooled pipe washing device according to claim 1, characterized in that, The high-pressure gas source (6) is a high-pressure gas storage tank.
7. The energy-saving water-cooled pipe washing device according to claim 1, characterized in that, The inner wall of the outer sleeve (31) is provided with a second flared inner wall (37) in the shape of a flared shape from its protrusion outward; the inner sleeve (32) is provided with a first flared inner wall (36) in the shape of a flared shape outward.
8. The energy-saving water-cooled pipe washing device according to claim 7, characterized in that, The angle of the first outer expansion inner wall (36) is smaller than the angle of the second outer expansion inner wall (37).
9. An energy-saving water-cooled pipe cleaning device according to any one of claims 1-8, characterized in that, It also includes a filling pipe (1), a three-way valve (2) and a mixing tank (8). The three-way valve (2) includes a first interface (201), a second interface (202) and a third interface (203). The outer end of the outer sleeve (31) is connected to the third interface (203) of the three-way valve (2) through a connecting pipe (10). The first interface (201) and the second interface (202) are respectively connected to the filling pipe (1). A slurry valve (9) is provided on the filling pipe (1) connected to the first interface (201), and the mixing tank (8) is provided at the end.