Anti-clogging mining valve

Abstract

The utility model discloses a kind of anti-clogging mining valves, including valve body, valve cover and valve stem, the valve cover is set to the top of valve body, the valve stem is moved up and down and is located inside valve cover, the inner portion of valve body is equipped with first valve cavity and second valve cavity respectively, hollow cylindrical valve cage is equipped between first valve cavity and second valve cavity in the inside of valve body, hollow valve plug with bottom opening is equipped in the inside of hollow cylindrical valve cage, the upper portion of hollow valve plug is closed structure and is connected with valve stem, first valve hole is opened in the lower side wall of hollow cylindrical valve cage, second valve hole is opened in the lower side wall of hollow valve plug, flush interface is connected on the valve cover, flush interface is communicated with the inside of hollow cylindrical valve cage, gap is equipped between the upper portion of hollow valve plug outside arm and hollow cylindrical valve cage. The present scheme can inject flush liquid into valve without disassembling valve body, realize block cleaning, avoid valve blockage, save maintenance time.

Description

Technical Field

[0001] This utility model belongs to the field of valve technology, specifically relating to an anti-clogging mining valve. Background Technology

[0002] Valves are indispensable basic equipment in mining and mine production processes, widely used in mine water supply and drainage systems, ventilation systems, and various fluid transport pipelines containing solid particles and impurities. Valves play a crucial role in opening, closing, regulating, and controlling fluid flow in pipelines, and their operational reliability directly affects the safety and stability of the mine system. However, mining valves operate in harsh environments, and the transported media typically contain a large number of impurities such as mud, coal dust, and iron filings. These impurities easily accumulate inside the valve body, causing narrowing or even blockage of the internal flow channels.

[0003] Most existing mining valves use a common valve core and seat combination structure. When fluid carrying impurities passes through for extended periods, foreign objects easily accumulate in the gap between the valve core and valve body, leading to poor valve opening and closing or even jamming. Simultaneously, impurities inside the valve cavity can clog the valve orifice, affecting normal fluid flow, increasing valve opening and closing resistance, and reducing sealing performance. In actual use, operators often need to disassemble the entire valve for internal cleaning or parts replacement. This method not only requires significant downtime, causing production delays, but also involves cumbersome disassembly and installation, high labor intensity, and high maintenance costs. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides an anti-clogging mining valve, comprising a valve body, a valve cover, and a valve stem. The valve cover is located at the top of the valve body, and the valve stem is movable up and down within the valve cover. The valve body has an inlet and an outlet on its left and right sides, respectively. Inside the valve body, corresponding to the inlet and outlet, are a first valve chamber and a second valve chamber. A hollow cylindrical valve cage is located between the first and second valve chambers inside the valve body. Inside the hollow cylindrical valve cage is a hollow valve plug with an open bottom. The upper part of the hollow valve plug is closed and connected to the valve stem. A first valve hole is opened on the lower side wall of the hollow cylindrical valve cage, and a second valve hole is opened on the lower side wall of the hollow valve plug. A flushing interface is connected to the valve cover, communicating with the interior of the hollow cylindrical valve cage. A gap is provided between the upper part of the outer arm of the hollow valve plug and the hollow cylindrical valve cage.

[0005] Preferably, the gap is provided with multiple grooves, and the cross-section of the grooves is sawtooth-shaped.

[0006] Preferably, a limiting part is provided on the outer wall of the hollow valve plug, and a limiting seat is provided at the bottom of the hollow cylindrical valve cage.

[0007] Preferably, the bottom of the valve cover is provided with first bolt connection holes on both sides, the top of the valve body is provided with second bolt connection holes on both sides, and a locking bolt is provided between the first bolt connection holes and the second bolt connection holes.

[0008] Preferably, the flushing port is equipped with a one-way valve.

[0009] The advantages of this utility model are: 1. In this solution, the valve cover is equipped with a flushing interface, which communicates with the gap between the valve cage and the valve plug, allowing for online cleaning of the valve interior using high-pressure cleaning fluid. The flushing oil rotates at high speed along the gap and groove, forming a vortex that peels off and discharges impurities adhering to the inner wall of the valve cage, the first valve hole, and the second valve hole. This avoids the cumbersome operation of disassembling the valve for cleaning, greatly saving maintenance time and labor costs.

[0010] 2. In this design, the valve cover is fastened to the valve body with bolts, and the valve stem drives the valve plug to move up and down. A limiting part is provided on the outside of the valve plug, and a limiting seat is provided at the bottom of the valve cage, which effectively controls the valve plug stroke and prevents over-stroke from causing valve damage or leakage.

[0011] 3. The multi-stage channel design of the lower side wall of the valve plug and the bottom of the valve cage in this solution enables the valve plug to move up and down in a progressive manner, and the fluid flow rate can be precisely adjusted to meet the flow control requirements of slurry or high-viscosity liquid under different working conditions. Attached Figure Description

[0012] Figure 1 This is a structural diagram of the present utility model.

[0013] Figure 2 This is a diagram of the closed state of this utility model.

[0014] Figure 3 This is an enlarged structural diagram of the valve hole of this utility model.

[0015] In the diagram: 1 Valve body, 2 Valve cover, 3 Valve stem, 4 Inlet, 5 Outlet, 6 First valve chamber, 7 Second valve chamber, 8 Hollow cylindrical valve cage, 9 Hollow valve plug, 10 First valve hole, 11 Second valve hole, 12 Flushing interface, 13 Gap, 14 Groove, 15 Limiting part, 16 Limiting seat, 17 First bolt connection hole, 18 Second bolt connection hole, 19 Locking bolt, 20 Check valve. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Simultaneously, when an component is referred to as "fixed to" or "equipped on" another component, it can be directly on the other component or may have an intervening component present. When an component is referred to as "connected to" another component, it can be directly connected to the other component or may have an intervening component present. When an component is referred to as "fixedly connected to" another component, it can be a common fixed connection method such as welding, bolting, or gluing. In short, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Example 1, as Figure 1-3 As shown, an anti-clogging mining valve includes a valve body 1, a valve cover 2, and a valve stem 3. The valve cover 2 is located on top of the valve body 1 and is fixedly connected to the valve body 1 by bolts, ensuring the overall structure of the valve is stable and reliable, while facilitating daily disassembly, inspection, and maintenance. The valve stem 3 can move freely up and down longitudinally inside the valve cover 2, driving the valve plug inside the valve to control its opening and closing. The valve stem can be driven by a structure such as an electric cylinder. The valve body 1 has an inlet 4 and an outlet 5 on its left and right sides, respectively. Inside the valve body 1, corresponding to the inlet 4 and outlet 5, there is a first valve chamber 6 and a second valve chamber 7. The first valve chamber 6 is used to receive the incoming slurry or liquid medium, and the second valve chamber 7 is used to discharge the processed medium, thus forming a complete flow channel to ensure the smooth flow of the medium inside the valve.

[0020] A hollow cylindrical valve cage 8 is disposed between the first valve chamber 6 and the second valve chamber 7. The upper and lower ends of the valve cage form a tight fit with the first valve chamber 6 and the second valve chamber 7, respectively, to ensure that the valve will not leak under the action of high-pressure slurry or liquid media. A first valve hole 10 is opened on the lower side wall of the hollow cylindrical valve cage 8, allowing fluid to flow smoothly from the valve chamber into the valve cage. A hollow valve plug 9 is disposed inside the hollow cylindrical valve cage 8. The upper part of the hollow valve plug 9 is a closed structure and is connected to the valve cover 2 through the valve stem 3. The up and down movement of the valve stem 3 drives the hollow valve plug 9 to move up and down inside the hollow cylindrical valve cage 8, thereby realizing the opening and closing of the first valve hole 10 at the bottom of the valve cage and the second valve hole 11 on the lower side wall of the hollow valve plug 9 to control the flow of media. The second valve hole 11 on the lower side wall of the hollow valve plug 9 and the first valve hole 10 at the bottom of the valve cage form an opening and closing fit during the up and down movement of the valve plug, thereby realizing flow regulation and precise control of the flow of media.

[0021] To ensure the safety of valve operation and prevent damage or leakage caused by excessive travel of the hollow valve plug 9, a limiting part 15 is provided on the outer wall of the hollow valve plug 9, and a limiting seat 16 is provided at the bottom of the hollow cylindrical valve cage 8. When the hollow valve plug 9 moves up and down, the limiting part 15 and the limiting seat 16 cooperate with each other to effectively limit the maximum stroke of the hollow cylindrical valve cage 8, so that the hollow valve plug 9 will not damage the valve body 1 or the valve cage due to excessive movement, while ensuring stable and reliable valve operation under various working conditions.

[0022] A flushing port 12 is provided on the valve cover 2 and communicates with the interior of the hollow cylindrical valve cage 8. A gap 13 is formed between the upper part of the outer arm of the hollow valve plug 9 and the valve cage. This gap 13 communicates with the flushing port 12 and is used to introduce the cleaning medium. When the valve needs cleaning, high-pressure cleaning fluid can be supplied to the gap 13 between the hollow cylindrical valve cage 8 and the hollow valve plug 9 through the flushing port 12. The high-pressure cleaning fluid enters the gap 13 along the flushing channel, covers the inner wall of the hollow cylindrical valve cage 8 and the outer surface of the hollow valve plug 9, and rotates at high speed along the groove 14 provided on the gap 13 of the hollow valve plug 9 to form a vortex, thereby flushing away the slurry deposits or particulate impurities attached to the inner wall of the valve cage, the first valve hole 10 and the second valve hole 11. The flushed particulate impurities can be discharged along the inside of the valve or guided to a separate drain pipe, thus completing the cleaning process without disassembling the valve body, significantly reducing maintenance time and labor costs.

[0023] In addition, a one-way valve 20 can be installed on the flushing port 12 to ensure that the cleaning oil only flows into the valve and does not flow back to the external pipeline, further improving operational safety and cleaning efficiency. During valve operation, operators can periodically supply cleaning oil to the inside of the valve through the flushing port 12 to keep the valve cavity clean and prevent the accumulation of impurities in the fluid during long-term use, thus ensuring the long-term stable operation of the valve.

[0024] Bolt connection holes are provided on both sides of the bottom of the valve cover 2, and corresponding bolt holes are also provided on the top of the valve body 1. The valve cover 2 and the valve body 1 are fastened together by locking bolts 19, making the overall structure of the valve stable and reliable. The design of locking bolts 19 ensures that the valve cover 2 will not loosen under the action of high-pressure slurry media, and at the same time facilitates quick disassembly for inspection or replacement of valve plugs when valve abnormalities occur, improving the convenience and safety of valve maintenance.

[0025] In summary, the anti-clogging mining valve provided in this embodiment, through its rational structural design of the valve cage and valve plug, the guiding and limiting function of the valve stem 3, and the online cleaning function of the flushing interface 12 and the groove 14 of the gap 13, enables the valve to operate stably for a long time under high-viscosity, particulate-containing slurry conditions. Simultaneously, it achieves a comprehensive effect of safe operation, convenient maintenance, efficient cleaning, and excellent anti-clogging performance. The valve's overall structure is compact and reasonable, and its operation is simple, meeting the high-reliability control requirements of industries such as mining, metallurgy, and chemicals for fluid media containing impurities.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clog-resistant mining valve, characterized in that: The valve body includes a valve body (1), a valve cover (2), and a valve stem (3). The valve cover (2) is located on the top of the valve body (1). The valve stem (3) moves up and down inside the valve cover (2). The valve body (1) has an inlet (4) and an outlet (5) on its left and right sides, respectively. The valve body (1) has a first valve chamber (6) and a second valve chamber (7) corresponding to the inlet (4) and outlet (5), respectively. A hollow cylindrical valve cage (8) is located between the first valve chamber (6) and the second valve chamber (7) inside the valve body (1). 8) The hollow valve plug (9) is provided with a bottom opening inside. The upper part of the hollow valve plug (9) is a closed structure and is connected to the valve stem (3). A first valve hole (10) is opened on the lower side wall of the hollow cylindrical valve cage (8). A second valve hole (11) is opened on the lower side wall of the hollow valve plug (9). A flushing interface (12) is connected to the valve cover (2). The flushing interface (12) is connected to the interior of the hollow cylindrical valve cage (8). A gap (13) is provided between the upper part of the outer arm of the hollow valve plug (9) and the hollow cylindrical valve cage (8).

2. The anti-clogging mining valve according to claim 1, characterized in that: The gap (13) is provided with a plurality of grooves (14), and the cross section of the grooves (14) is sawtooth-shaped.

3. The anti-clogging mining valve according to claim 2, characterized in that: The hollow valve plug (9) has a limiting part (15) on its outer side wall, and the hollow cylindrical valve cage (8) has a limiting seat (16) at its bottom.

4. The anti-clogging mining valve according to claim 3, characterized in that: The valve cover (2) has a first bolt connection hole (17) on both sides of the bottom, and the valve body (1) has a second bolt connection hole (18) on both sides of the top. A locking bolt (19) is provided between the first bolt connection hole (17) and the second bolt connection hole (18).

5. The anti-clogging mining valve according to claim 4, characterized in that: A one-way valve (20) is provided on the flushing port (12).

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