Symmetrical bidirectional pressure-bearing ore pulp valve sealing structure

Abstract

The utility model discloses a symmetrical two -way pressure -bearing's ore pulp valve sealing structure, including the valve body, the top fixed mounting of valve body has the sealing plate group, the inside rotatory mounting of sealing plate group has the valve stem, the top installation of valve stem has the hand wheel, the both sides symmetrical installation of valve body outer surface have the flow guide subassembly, wherein, the flow guide subassembly includes the docking ring, the inside fixed mounting of docking ring has the shunt spare, the rotatory mounting of shunt spare's axle center has the conical axle, the utility model relates to ore pulp valve technical field. Symmetrical two -way pressure -bearing's ore pulp valve sealing structure, through the rotation hand wheel of operating personnel, hand wheel drives the valve stem to rotate in the valve seat of sealing plate group. The rotation of valve stem is passed to the link axle, and then drives the valve plate to rotate in the cavity inside the valve body, realizes the opening or closing action of ore pulp valve. The valve seat of sealing plate group cooperates with the valve plate, and in the process of opening and closing, can form the stable sealing surface of the transmission of valve stem, effectively prevents the ore pulp leakage.

Description

Technical Field

[0001] This utility model relates to the field of slurry valve technology, specifically a symmetrical bidirectional pressure-bearing slurry valve sealing structure. Background Technology

[0002] A slurry valve is an industrial valve specifically designed for shutting off pipelines transporting granular materials. Named for its mining applications, its core structure is typically a three-piece assembly, consisting of a cast valve body and welded flanges on both sides. It utilizes hard alloy sealing surfaces and a stainless steel gate to enhance wear and corrosion resistance. This valve features full-bore operation, low fluid resistance, simple structure, and reliable operation. It can be operated manually, electrically, or hydraulically. Slurry valves are widely used in mining, metallurgy, coal, chemical, and power plant industries, and are suitable for media including mud, slurry, coal slurry, and slag-water mixtures.

[0003] Currently, the sealing structure of slurry valves widely used in industrial pipelines has some shortcomings. Ordinary slurry valves typically use planar or spherical seals. When transporting slurry, particles in the medium can easily damage the sealing surface. Once the sealing surface is damaged, the medium, under pressure, will rapidly erode the valve's passage and seals, leading to valve failure, shortened service life, frequent replacements, and increased operating costs. Utility Model Content

[0004] To solve the above technical problems, this utility model is achieved through the following technical solution: a symmetrical bidirectional pressure-bearing slurry valve sealing structure, comprising: a valve body, a sealing plate assembly fixedly installed on the top of the valve body, a valve stem rotatably installed inside the sealing plate assembly, a handwheel installed on the top of the valve stem, and flow guiding components symmetrically installed on both sides of the outer surface of the valve body;

[0005] The flow guiding assembly includes a docking ring, inside which a flow divider is fixedly installed. A tapered shaft is rotatably mounted at the axis of the flow divider, and a lever is fixedly mounted on the outer surface of the tapered shaft. The operator rotates a handwheel, which drives the valve stem and valve plate to rotate within the valve body, allowing the slurry to be guided into the flow guiding assembly from one side of the valve body. The manual operation of the handwheel is simple and intuitive, facilitating quick control of the slurry flow by on-site personnel. It eliminates the need for complex power equipment, reducing usage and maintenance costs. The slurry enters from the flow guiding assembly on one side of the valve body, first contacting the curved strips and flow divider plate of the flow divider. The segmented curved strips and flow divider plate initially divert the slurry, reducing direct impact on the valve body. The symmetrical design of the flow guiding assemblies on both sides of the valve body allows for bidirectional slurry flow with consistent pressure resistance in both directions, overcoming the limitation of unidirectional pressure resistance in traditional slurry valves and extending the valve body's service life.

[0006] Preferably, the docking ring is fixedly installed on both sides of the outer surface of the valve body, and the lever is rotatably installed inside the diverter via a tapered shaft.

[0007] Preferably, the diverter includes a support frame, a retaining ring fixedly mounted on the outer surface of the support frame, a curved strip fixedly mounted on the outer surface of the retaining ring, and a diverter plate fixedly mounted on the outer surface of the curved strip away from the retaining ring. A central shaft is fixedly mounted between the opposing surfaces of the support frame and the diverter plate. The diverted slurry pushes a deflector, which drives a conical shaft to rotate on the central shaft of the diverter, further guiding the slurry flow and ensuring that the slurry passes evenly through the valve body. The rotating design of the conical shaft and the deflector makes the slurry flow smoother, preventing slurry accumulation in the valve body and reducing the risk of valve body blockage. The curved strip, diverter plate, and deflector structure of the diverter perform multi-stage diversion and guidance of the slurry, significantly reducing the impact force of the slurry on the valve body and reducing valve body wear and vibration.

[0008] Preferably, the retaining ring is fixedly mounted on the outer surface of the docking ring, and the tapered shaft is rotatably mounted on the outer surface of the central shaft.

[0009] Preferably, the sealing plate assembly includes a valve seat, with a connecting shaft rotatably mounted inside the valve seat, and a valve plate fixedly mounted on the outer surface of the connecting shaft. The operator rotates a handwheel, which drives the valve stem to rotate within the valve seat of the sealing plate assembly. The rotation of the valve stem is transmitted to the connecting shaft, which in turn drives the valve plate to rotate within the cavity of the valve body, thus realizing the opening or closing action of the slurry valve. The valve seat and valve plate of the sealing plate assembly, in conjunction with the transmission of the valve stem, can form a stable sealing surface during opening and closing, effectively preventing slurry leakage.

[0010] Preferably, the valve seat is fixedly installed on the top of the valve body, the connecting shaft is fixedly connected to the valve stem, and the valve plate is rotatably installed inside the cavity of the valve body.

[0011] This utility model provides a symmetrical, bidirectional pressure-bearing sealing structure for a slurry valve. It has the following beneficial effects:

[0012] (I) The symmetrical bidirectional pressure-bearing slurry valve sealing structure allows the operator to rotate a handwheel, which in turn rotates the valve stem and valve plate within the valve body. This allows the slurry to be guided into the flow-guiding assembly from one side of the valve body. The manual operation of the handwheel is simple and intuitive, facilitating quick control of the slurry flow by on-site personnel. It eliminates the need for complex power equipment, reducing usage and maintenance costs. The slurry enters through the flow-guiding assembly on one side of the valve body, first contacting the curved strips and flow-guiding plates of the diverter. The segmented curved strips and flow-guiding plates provide initial diversion of the slurry, reducing direct impact on the valve body. The symmetrical design of the flow-guiding assemblies on both sides of the valve body allows for bidirectional slurry flow with consistent pressure-bearing capacity in both directions, overcoming the limitation of traditional unidirectional pressure bearing in slurry valves and extending the valve body's service life.

[0013] (II) The symmetrical bidirectional pressure-bearing slurry valve sealing structure utilizes the slurry after diversion to push the deflector. The deflector drives the conical shaft to rotate on the central axis of the diverter, further guiding the slurry flow and ensuring its uniform passage through the valve body. The rotating design of the conical shaft and deflector makes the slurry flow smoother, preventing slurry accumulation within the valve body and reducing the risk of valve blockage. The curved strips, diverter plates, and deflector structures of the diverter perform multi-stage diversion and guidance of the slurry, significantly reducing the impact force of the slurry on the valve body and minimizing wear and vibration.

[0014] (III) The symmetrical bidirectional pressure-bearing slurry valve sealing structure allows the operator to rotate the handwheel, which in turn rotates the valve stem within the valve seat of the sealing plate assembly. This rotation of the valve stem is transmitted to the connecting shaft, which in turn rotates the valve plate within the valve body cavity, thus opening or closing the slurry valve. The valve seat of the sealing plate assembly, in conjunction with the valve plate and the valve stem's transmission, forms a stable sealing surface during opening and closing, effectively preventing slurry leakage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model from another angle;

[0017] Figure 3 This is a cross-sectional structural diagram of the valve body of this utility model;

[0018] Figure 4 This is a schematic diagram of the flow guiding component of this utility model;

[0019] Figure 5 This is a schematic diagram of the flow divider and valve body of this utility model;

[0020] Figure 6 This is a schematic diagram of the flow divider of this utility model.

[0021] In the diagram: 1. Handwheel; 2. Sealing plate assembly; 21. Valve seat; 22. Connecting shaft; 23. Valve plate; 3. Valve stem; 4. Valve body; 5. Flow guide assembly; 51. Connecting ring; 52. Flow divider; 521. Curved strip; 522. Support frame; 523. Central shaft; 524. Snap ring; 525. Flow divider plate; 53. Tapered shaft; 54. Paddle. Detailed Implementation

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] First embodiment, such as Figures 1 to 6 As shown, this utility model provides a technical solution: a symmetrical bidirectional pressure-bearing slurry valve sealing structure, including: a valve body 4, a sealing plate assembly 2 fixedly installed on the top of the valve body 4, a valve stem 3 rotatably installed inside the sealing plate assembly 2, a handwheel 1 installed on the top of the valve stem 3, and flow guiding components 5 symmetrically installed on both sides of the outer surface of the valve body 4.

[0024] The flow guiding assembly 5 includes a docking ring 51, inside which a flow divider 52 is fixedly installed. A tapered shaft 53 is rotatably mounted at the axis of the flow divider 52, and a lever 54 is fixedly installed on the outer surface of the tapered shaft 53. The operator rotates the handwheel 1, which drives the valve stem 3 and valve plate 23 to rotate within the valve body 4, allowing the slurry to be introduced into the flow guiding assembly 5 from one side of the valve body 4. The manual operation of the handwheel 1 is simple and intuitive, facilitating quick control of the slurry flow by on-site personnel, eliminating the need for complex power equipment and reducing usage and maintenance costs. The slurry enters from the flow guiding assembly 5 on one side of the valve body 4, first contacting the curved strip 521 and flow divider plate 525 of the flow divider 52. The segmented curved strip 521 and flow divider plate 525 initially divert the slurry, reducing the direct impact of the slurry on the valve body 4. The symmetrical flow guiding components 5 on both sides of the valve body 4 allow the slurry to pass through in both directions with consistent pressure bearing capacity in both directions, which solves the limitation of the traditional slurry valve's unidirectional pressure bearing and extends the service life of the valve body 4.

[0025] The docking ring 51 is fixedly installed on both sides of the outer surface of the valve body 4, and the paddle 54 is rotatably installed inside the diverter 52 via the tapered shaft 53.

[0026] The diverting component 52 includes a support frame 522. A retaining ring 524 is fixedly installed on the outer surface of the support frame 522. An arc strip 521 is fixedly installed on the outer surface of the retaining ring 524. A diverting plate 525 is fixedly installed on the outer surface of the arc strip 521 away from the retaining ring 524. A central shaft 523 is fixedly installed between the opposing surfaces of the support frame 522 and the diverting plate 525. The diverted slurry pushes a paddle 54, which drives a conical shaft 53 to rotate on the central shaft 523 of the diverting component 52, further guiding the slurry flow and ensuring that the slurry passes evenly through the valve body 4. The rotational design of the conical shaft 53 and the paddle 54 makes the slurry flow smoother, avoids slurry accumulation in the valve body 4, and reduces the risk of valve body 4 blockage. The structure of the diverter 52, including the curved strip 521, the diverter plate 525, and the paddle 54, performs multi-stage diversion and guidance of the slurry, significantly reducing the impact of the slurry on the valve body 4 and reducing the wear and vibration of the valve body 4.

[0027] The retaining ring 524 is fixedly installed on the outer surface of the docking ring 51, and the tapered shaft 53 is rotatably installed on the outer surface of the central shaft 523.

[0028] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 1 to 3 As shown, the sealing plate assembly 2 includes a valve seat 21, with a connecting shaft 22 rotatably mounted inside the valve seat 21, and a valve plate 23 fixedly mounted on the outer surface of the connecting shaft 22. When the operator rotates the handwheel 1, the handwheel 1 drives the valve stem 3 to rotate within the valve seat 21 of the sealing plate assembly 2. The rotation of the valve stem 3 is transmitted to the connecting shaft 22, which in turn drives the valve plate 23 to rotate within the cavity of the valve body 4, thus realizing the opening or closing action of the slurry valve. The valve seat 21 and valve plate 23 of the sealing plate assembly 2, combined with the transmission of the valve stem 3, can form a stable sealing surface during the opening and closing process, effectively preventing slurry leakage.

[0029] The valve seat 21 is fixedly installed on the top of the valve body 4, the connecting shaft 22 is fixedly connected to the valve stem 3, and the valve plate 23 is rotatably installed inside the cavity of the valve body 4.

[0030] In operation, the operator turns handwheel 1, which in turn rotates valve stem 3 and valve plate 23 within valve body 4, allowing slurry to flow from one side of valve body 4 into flow guide assembly 5. The manual operation of handwheel 1 is simple and intuitive, facilitating quick control of slurry flow by on-site personnel. It eliminates the need for complex power equipment, reducing operating and maintenance costs. The slurry enters through flow guide assembly 5 on one side of valve body 4, first contacting the curved strip 521 and flow divider plate 525 of the diverter 52. The segmented curved strip 521 and flow divider plate 525 initially divert the slurry, reducing direct impact on valve body 4. The symmetrical design of flow guide assemblies 5 on both sides of valve body 4 allows slurry to flow bidirectionally with consistent pressure resistance in both directions, overcoming the limitation of unidirectional pressure resistance in traditional slurry valves and extending the service life of valve body 4.

[0031] After being diverted, the slurry pushes the deflector 54, which in turn drives the conical shaft 53 to rotate on the central axis 523 of the diverter 52, further guiding the slurry flow and ensuring it passes evenly through the valve body 4. The rotating design of the conical shaft 53 and the deflector 54 makes the slurry flow smoother, preventing slurry accumulation within the valve body 4 and reducing the risk of blockage. The curved strip 521, diverter plate 525, and deflector 54 of the diverter 52 perform multi-stage diversion and guidance of the slurry, significantly reducing the impact force of the slurry on the valve body 4 and minimizing wear and vibration.

[0032] The operator turns handwheel 1, which drives valve stem 3 to rotate within valve seat 21 of sealing plate assembly 2. The rotation of valve stem 3 is transmitted to connecting shaft 22, which in turn drives valve plate 23 to rotate within the cavity of valve body 4, thus opening or closing the slurry valve. The valve seat 21 and valve plate 23 of sealing plate assembly 2, in conjunction with the transmission of valve stem 3, form a stable sealing surface during opening and closing, effectively preventing slurry leakage.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] 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 symmetrical, bidirectional pressure-bearing slurry valve sealing structure, characterized in that, include: A valve body (4) is fixedly installed on the top of the valve body (4), a valve stem (3) is rotatably installed inside the sealing plate assembly (2), a handwheel (1) is installed on the top of the valve stem (3), and flow guiding components (5) are symmetrically installed on both sides of the outer surface of the valve body (4). The flow guiding component (5) includes a docking ring (51), a flow divider (52) is fixedly installed inside the docking ring (51), a tapered shaft (53) is rotatably installed at the axis of the flow divider (52), and a paddle (54) is fixedly installed on the outer surface of the tapered shaft (53).

2. The symmetrical bidirectional pressure-bearing slurry valve sealing structure according to claim 1, characterized in that: The docking ring (51) is fixedly installed on both sides of the outer surface of the valve body (4), and the paddle (54) is rotatably installed inside the diverter (52) via the tapered shaft (53).

3. The symmetrical bidirectional pressure-bearing slurry valve sealing structure according to claim 2, characterized in that: The diverter (52) includes a support frame (522), a retaining ring (524) is fixedly installed on the outer surface of the support frame (522), an arc strip (521) is fixedly installed on the outer surface of the retaining ring (524), a diverter plate (525) is fixedly installed on the outer surface of the arc strip (521) away from the retaining ring (524), and a central shaft (523) is fixedly installed between the opposite surfaces of the support frame (522) and the diverter plate (525).

4. The symmetrical bidirectional pressure-bearing slurry valve sealing structure according to claim 3, characterized in that: The retaining ring (524) is fixedly installed on the outer surface of the docking ring (51), and the tapered shaft (53) is rotatably installed on the outer surface of the central shaft (523).

5. The symmetrical bidirectional pressure-bearing slurry valve sealing structure according to claim 1, characterized in that: The sealing plate assembly (2) includes a valve seat (21), a connecting shaft (22) is rotatably mounted inside the valve seat (21), and a valve plate (23) is fixedly mounted on the outer surface of the connecting shaft (22).

6. The symmetrical bidirectional pressure-bearing slurry valve sealing structure according to claim 5, characterized in that: The valve seat (21) is fixedly installed on the top of the valve body (4), the connecting shaft (22) is fixedly connected to the valve stem (3), and the valve plate (23) is rotatably installed inside the cavity of the valve body (4).

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