Ore pulp valve

Abstract

The utility model provides an ore pulp valve which comprises a valve body and a valve rod, the valve body is provided with a feeding port and a discharging port, the axial lead of the feeding port is perpendicular to the axial lead of the discharging port, a guide cylinder is arranged in the valve body, a guide support is arranged at the feeding port, a valve element is arranged on the valve rod, one end of the valve rod is movably arranged in the guide cylinder, and a guide rod is arranged on the valve element. The guide rod and the valve rod are arranged in a collinear mode, the guide rod is movably arranged on the guide support, the diameter of the outer ring of the valve element is larger than that of the feeding port, a plurality of discharging windows are formed in the guide cylinder, and an inner cavity of the guide cylinder is communicated with an inner cavity of the valve body through the discharging windows. Meanwhile, in the moving process of the valve rod, a medium at the end of the valve rod can be extruded out of the corresponding discharging window along with extrusion of the valve rod, and the phenomenon that movement of the valve rod is affected by medium accumulation is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of valve equipment, in particular to a mineral pulp valve. BACKGROUND

[0002] The medium of the mineral pulp valve is mineral pulp containing particles when in use, and the maximum size of the particles is not more than 3mm. However, the traditional mineral pulp valve structure has some problems. Specifically, the valve core and the valve seat are only treated by spray welding hard alloy, and such structure can cause the valve core and the valve seat to be seriously eroded during the opening of the valve, and thus the sealing surface of the valve seat and the valve core is easily damaged. This not only causes the valve to fail to maintain pressure, affecting the safety production on site, but also shortens the service life of the valve and reduces the production efficiency on site. In addition, in the traditional mineral pulp valve, the valve core is slidingly arranged on the valve rod, and the medium can be accumulated between the valve core and the valve rod, affecting the valve rod stroke, causing the valve core to not be sealed in place, and also affecting the reliability and service life of the valve. SUMMARY

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a mineral pulp valve for solving the technical problem of medium accumulation between the valve core and the valve body in the prior art, affecting the valve rod stroke.

[0004] To achieve the above-mentioned purposes and other related purposes, the utility model provides a mineral pulp valve, comprising:

[0005] A valve body is provided with a feed inlet and a discharge outlet, the axial center line of the feed inlet is perpendicular to the axial center line of the discharge outlet, a guide cylinder is arranged in the valve body, and a guide support is arranged at the feed inlet;

[0006] A valve rod is provided with a valve core, one end of the valve rod is movably arranged in the guide cylinder, a guide rod is arranged on the valve core, the guide rod is arranged in line with the valve rod, the guide rod is movably arranged on the guide support, and the outer diameter of the valve core is greater than the diameter of the feed inlet;

[0007] A plurality of discharge windows are arranged on the guide cylinder, and the discharge windows connect the inner cavity of the guide cylinder with the inner cavity of the valve body.

[0008] The advantages of the above technical scheme are that the connection relationship between the existing valve core and the valve rod is changed, the valve core moves synchronously with the valve rod, and the medium at the end of the valve rod is squeezed out from the corresponding discharge window during the movement of the valve rod, avoiding the accumulation of the medium affecting the movement of the valve rod.

[0009] Optionally, the valve body comprises a valve body and an upper valve cover, the valve body is provided with a maintenance window, and the upper valve cover is detachably arranged on the valve body.

[0010] Optionally, a compression spring is arranged on the valve rod, the compression spring is sleeved on the guide cylinder and the valve rod, one end of the compression spring abuts against the upper valve cover, and the other end of the compression spring abuts against the valve core.

[0011] Optionally, the guide bracket comprises a guide ring and a plurality of support rods, the support rods are arranged around the guide ring, one end of the support rod is arranged on the inner wall of the feed inlet, and the other end of the support rod is arranged on the outer wall of the guide ring, and the valve rod is slidingly arranged in the guide ring.

[0012] Optionally, a plurality of first discharge grooves are circumferentially arranged on the inner wall of the guide ring, all the first discharge grooves are equidistantly distributed, and the two ends of the first discharge groove are communicated with the two end faces of the guide ring, respectively.

[0013] Optionally, a plurality of second discharge grooves are arranged on the inner wall of the guide cylinder away from the upper valve cover, all the second discharge grooves correspond to all the discharge windows one by one, one end of the second discharge groove is communicated with the corresponding discharge window, and the other end of the second discharge groove is communicated with the inner cavity of the valve body.

[0014] Optionally, the valve core comprises a valve plate, a flow guide plate and a reinforcing ring, the valve plate is sleeved on the valve rod, the flow guide plate is arranged on the valve plate, the outer wall of the flow guide plate is arranged obliquely, and the reinforcing ring is sleeved on the outer ring edge of the valve plate.

[0015] Optionally, a sealing ring is arranged on the feed inlet, the inner wall of the sealing ring is arranged obliquely, and the sealing ring is used to contact the reinforcing ring.

[0016] Optionally, a mounting groove is arranged on the end face of the valve core facing the upper valve cover, the mounting groove is arranged around the valve rod, and the end portion of the compression spring is arranged in the mounting groove.

[0017] Optionally, an annular positioning groove is arranged on the inner side of the upper valve cover, and the corresponding end portion of the compression spring is arranged in the annular positioning groove.

[0018] As described above, the mine pulp valve has the following beneficial effects: the connection relationship between the valve core and the valve rod is changed, the valve core moves synchronously with the valve rod, and the medium at the end of the valve rod is extruded from the corresponding discharge window during the movement of the valve rod, so that the accumulation of the medium does not affect the movement of the valve rod. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 Fig. 2 shows a cross-sectional structure schematic diagram of the valve body in a closed state according to an embodiment of the present application;

[0020] Figure 2 Fig. 3 shows a cross-sectional structure schematic diagram of the valve body in an open state according to an embodiment of the present application;

[0021] Figure 3 Fig. 4 shows a cross-sectional structure schematic diagram of the guide cylinder connected with the upper valve cover according to an embodiment of the present application;

[0022] Figure 4 Fig. 5 shows a cross-sectional structure schematic diagram of the guide bracket according to an embodiment of the present application.

[0023] Part number explanation

[0024] 1 valve body

[0025] 101 guide cylinder

[0026] 102 guide bracket

[0027] 103 upper valve cover

[0028] 2 valve rod

[0029] 201 compression spring

[0030] 3 sealing plug

[0031] 4 guide ring

[0032] 5 support rod

[0033] 6 valve plate

[0034] 7 flow guide plate

[0035] 8 reinforcing ring

[0036] a breathing hole

[0037] b first discharge groove

[0038] c second discharge groove DETAILED DESCRIPTION

[0039] The above embodiments are only used to illustrate the present application but not to limit the present application. Based on the above disclosure, those skilled in the art can easily understand other advantages and benefits of the present application. The present application can be implemented or applied in other different embodiments, and the details in the above description can be modified or changed based on different viewpoints and applications without departing from the spirit of the present application.

[0040] Please refer to Figures 1 to 2It is to be noted that the drawings provided in the present embodiment only schematically illustrate the basic concept of the present application, and only show the components related to the present application in the drawings, rather than being drawn according to the number, shape and size of the components in actual implementation. The shape, number and proportion of each component in implementation can be arbitrarily changed, and the component layout pattern can be more complex. The structure, proportion, size and the like shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification, so as to be understood and read by those skilled in the art, and do not define the limiting conditions for the implementation of the present application, so they do not have substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" in the present specification are only for the convenience of clear description, and are not used to limit the scope of the present application. The change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the scope of the present application.

[0041] Please refer to Figures 1 to 4 The present application provides a kind of ore pulp valve, comprising:

[0042] Valve body 1, the valve body 1 is equipped with feed inlet and discharge port, the axis of the feed inlet is perpendicular to the axis of the discharge port, is equipped with guide cylinder 101 in the valve body 1, is equipped with guide support 102 in the feed inlet;

[0043] Valve stem 2, is equipped with valve core on the valve stem 2, one end of the valve stem 2 is movably arranged in the guide cylinder 101, is equipped with guide rod on the valve core, the guide rod is arranged in line with the valve stem 2, the guide rod is movably arranged on the guide support 102, the outer diameter of the valve core is greater than the diameter of the feed inlet;

[0044] Multiple discharge windows are provided on the guide cylinder 101, the discharge windows connect the inner cavity of the guide cylinder 101 with the inner cavity of the valve body 1.

[0045] It also needs to be explained that the guide cylinder 101 and the guide support 102 are arranged in the valve body 1 to provide guidance for the movement of the valve stem 2, and multiple discharge windows are arranged on the guide cylinder 101, so that the medium at the end of the valve stem 2 can overflow from the multiple discharge windows during the movement of the valve stem 2, avoiding the accumulation of the medium affecting the opening and closing of the valve.

[0046] Further, the end face of the valve stem 2 located in the guide cylinder 101 is semicircular, so that the medium at the end face can be more easily detached during the movement of the valve stem 2.

[0047] Exemplarily, the valve body 1 comprises a valve body and a valve cover 103, the valve body is provided with a maintenance window, the valve cover 103 is detachably arranged on the valve body, and the guide cylinder 101 is arranged on the inner side of the valve cover 103.

[0048] It should be further pointed out that the purpose of arranging the valve cover 103 is to quickly open the valve cover 103 on the valve body 1 when the valve rod 2 in the valve body needs to be replaced, and the valve rod 2 or the guide cylinder 101 can be replaced or checked at the same time.

[0049] Exemplarily, the valve rod 2 is provided with a compression spring 201, the compression spring 201 is sleeved on the guide cylinder 101 and the valve rod 2, one end of the compression spring 201 abuts against the valve cover 103, and the other end of the compression spring 201 abuts against the valve core.

[0050] It should be further pointed out that the purpose of arranging the compression spring 201 is to provide a restoring force for the valve rod 2, so that after the valve core is subjected to a reduced pressure of the medium, the valve core can push the valve core and the valve rod 2 to restore under the pressure of the compression spring 201, and the feed inlet is re-plugged.

[0051] Exemplarily, the guide bracket comprises a guide ring 4 and a plurality of support rods 5, the support rods 5 are arranged around the guide ring 4, one end of the support rod 5 is arranged on the inner wall of the feed inlet, and the other end of the support rod 5 is arranged on the outer wall of the guide ring 4, and the valve rod 2 is slidably arranged in the guide ring 4.

[0052] It should be further pointed out that the purpose of arranging the guide ring 4 and the plurality of support rods 5 is to provide guidance for the valve rod 2, so that when the valve core is subjected to the pressure of the medium, the valve rod 2 can move along the axis of the guide ring 4 and the guide cylinder 101.

[0053] Exemplarily, a plurality of first discharge grooves b are circumferentially arranged on the inner wall of the guide ring 4, all the first discharge grooves b are equidistantly distributed, and the two ends of the first discharge grooves b are respectively communicated with the two end faces of the guide ring 4.

[0054] It should be further pointed out that the purpose of arranging the first discharge grooves b is to provide a channel for the medium between the outer wall of the guide rod and the inner wall of the guide ring 4, which can effectively reduce the contact area of the guide rod and the guide part of the guide ring, avoid the jamming of the valve core component, improve the stability and reliability of the valve, and make the medium flow more smoothly through the discharge grooves, reduce the accumulation on the valve core component, and prevent the valve from not opening to the position.

[0055] Exemplarily, a plurality of second discharge grooves c are arranged on the inner wall of the guide cylinder 101 away from the upper valve cover 103, all the second discharge grooves c correspond to all the discharge windows one by one, one end of the second discharge groove c is connected with the corresponding discharge window, and the other end of the second discharge groove c is connected with the inner cavity of the valve body 1.

[0056] It also needs to be explained that the purpose of arranging the discharge grooves on the inner wall of the guide cylinder 101 is to provide a medium passing channel between the valve stem 2 and the guide cylinder 101, which can effectively reduce the contact area between the guide cylinder 101 and the valve stem 2, avoid the jamming of the valve core component, improve the stability and reliability of the valve, and through the discharge grooves, the medium can flow more smoothly, reduce the accumulation on the valve core component, and prevent the valve from not opening to the position.

[0057] Exemplarily, the valve core includes a valve plate 6, a flow guide plate 7 and a reinforcing ring 8, the valve plate 6 is sleeved on the valve stem 2, the flow guide plate 7 is arranged on the valve plate 6, the outer wall of the flow guide plate 7 is arranged obliquely, and the reinforcing ring 8 is sleeved on the outer edge of the valve plate 6.

[0058] It also needs to be explained that the combined installation of the valve plate 6, the flow guide plate 7 and the reinforcing ring 8 is to reduce the processing difficulty, the purpose of arranging the flow guide plate 7 on the valve plate 6 is to provide an inclined surface for the medium to avoid the medium accumulation at the included angle between the valve plate 6 and the valve stem 2, and the purpose of arranging the reinforcing ring on the outer edge of the valve plate 6 is to strengthen the contact part between the valve core and the inlet by the reinforcing ring 8, which is used to reduce the scouring effect of the medium on the valve core.

[0059] It is further explained that the reinforcing ring 8 is made of hard alloy, such as cobalt-based hard alloy or tungsten-titanium-cobalt hard alloy.

[0060] Exemplarily, a sealing ring is arranged on the inlet, the inner wall of the sealing ring is arranged obliquely, and the sealing ring is used to contact the reinforcing ring 8.

[0061] It also needs to be explained that the purpose of arranging the sealing ring is to further strengthen the strength of the inner wall of the inlet, while ensuring the sealing performance of the valve when it is closed, and the sealing ring is also made of hard alloy, such as cobalt-based hard alloy or tungsten-titanium-cobalt hard alloy, which is used to cooperate with the reinforcing ring 8.

[0062] Exemplarily, a mounting groove is arranged on the end face of the valve core facing the upper valve cover 103, the mounting groove is arranged around the valve stem 2, and the end part of the compression spring 201 is arranged in the mounting groove.

[0063] It also needs to be explained that the purpose of arranging the mounting groove is to provide a limit for the end part of the compression spring 201 to avoid the radial displacement of the compression spring 201.

[0064] Exemplarily, an annular positioning groove is arranged on the inner side of the upper valve cover 103, and the corresponding end of the compression spring 201 is arranged in the annular positioning groove.

[0065] It should be further explained that the annular positioning groove is arranged to set the mounting position of the compression spring 201 on the upper valve cover 103, and the contact point of the compression spring 201 with the upper valve cover 103 is limited.

[0066] In one of the embodiments, a breathing hole a is arranged on the valve body 1, the breathing hole a is communicated with the inner cavity of the guide cylinder 101, and a sealing plug 3 for plugging the breathing hole a is arranged on the breathing hole a.

[0067] The breathing hole a and the corresponding sealing plug are arranged to directly blow the valve body 1 from the breathing hole when the inner wall of the valve body 1 is blown, and the problem of medium accumulation caused by long-time use is quickly solved, and the maintenance cost is reduced.

[0068] Further, a sealing sleeve is further arranged on the breathing hole a, the sealing sleeve is inserted into the breathing hole a, and sealing filler is arranged between the sealing sleeve and the breathing hole a to seal, such as sealing tape.

[0069] A thread is arranged on the inner wall of the sealing sleeve, the sealing plug 3 is screwed with the sealing sleeve, the sealing effect is ensured, and the sealing plug 3 cannot be loosened and fallen off due to excessive internal pressure of the valve body 1.

[0070] In summary, the mine pulp valve of the utility model changes the connection relationship between the valve core and the valve rod, so that the valve core moves synchronously with the valve rod 2, and the medium at the end of the valve rod is extruded from the corresponding discharge window during the movement of the valve rod 2, so that the accumulation of the medium does not affect the movement of the valve rod 2.

[0071] The above embodiments only exemplarily illustrate the principle and effect of the utility model, and are not used to limit the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical thought of the utility model should be covered by the claims of the utility model.

Claims

1. A slurry valve, characterized in that, include: The valve body has an inlet and an outlet, the axis of the inlet is perpendicular to the axis of the outlet, a guide cylinder is provided in the valve body, and a guide bracket is provided in the inlet. A valve stem with a valve core on it, one end of which is movably disposed within the guide cylinder, and a guide rod on the valve core. The guide rod is collinear with the valve stem and is movably disposed on the guide bracket. The outer diameter of the valve core is larger than the diameter of the feed inlet. The guide cylinder is provided with multiple discharge windows, which connect the inner cavity of the guide cylinder with the inner cavity of the valve body.

2. A slurry valve according to claim 1, characterized in that: The valve body includes a valve body body and an upper valve cover. The valve body body is provided with a maintenance window. The upper valve cover is detachably mounted on the valve body body. The guide cylinder is located inside the upper valve cover.

3. A slurry valve according to claim 2, characterized in that: A compression spring is provided on the valve stem. The compression spring is sleeved on the guide cylinder and the valve stem. One end of the compression spring abuts against the upper valve cover, and the other end of the compression spring abuts against the valve core.

4. A slurry valve according to claim 3, characterized in that: The guide bracket includes a guide ring and multiple support rods. The support rods are arranged around the guide ring, with one end of the support rod disposed on the inner wall of the feed inlet and the other end disposed on the outer wall of the guide ring. The valve stem is slidably disposed within the guide ring.

5. A slurry valve according to claim 4, characterized in that: The inner wall of the guide ring is provided with a plurality of first discharge grooves in a circumferential direction. All the first discharge grooves are equally distributed, and the two ends of the first discharge grooves are respectively connected to the two end faces of the guide ring.

6. A slurry valve according to claim 5, characterized in that: Multiple second discharge grooves are provided on the inner wall of the guide cylinder away from the upper valve cover. All the second discharge grooves correspond one-to-one with all the discharge windows. One end of the second discharge groove is connected to the corresponding discharge window, and the other end of the second discharge groove is connected to the inner cavity of the valve body.

7. A slurry valve according to claim 6, characterized in that: The valve core includes a valve plate, a guide plate, and a reinforcing ring. The valve plate is sleeved on the valve stem, the guide plate is disposed on the valve plate, the outer wall of the guide plate is inclined, and the reinforcing ring is sleeved on the outer edge of the valve plate.

8. A slurry valve according to claim 7, characterized in that: A sealing ring is provided on the feed inlet, and the inner wall of the sealing ring is inclined. The sealing ring is used to contact the reinforcing ring.

9. A slurry valve according to claim 8, characterized in that: A mounting groove is provided on the end face of the valve core facing the upper valve cover, the mounting groove is provided around the valve stem, and the end of the compression spring is provided in the mounting groove.

10. A slurry valve according to claim 9, characterized in that: An annular positioning groove is provided on the inner side of the upper valve cover, and the corresponding end of the compression spring abuts against the annular positioning groove.

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