A discharge gate valve mechanism for a mineral slurry sorting device

Abstract

The utility model discloses a discharge gate valve mechanism for ore pulp sorting device, including cylinder mechanism and gate valve, the cylinder mechanism has telescopic link, the lower end of this telescopic link swing connection gate valve, wherein, the lower end of telescopic link is equipped with the connecting portion of inverted "Y" type, and the top of this connecting portion is the connector connected with telescopic link, and the bottom is a pair of connecting lug, to form the configuration of inverted "Y" type, and a pair of opposite pin shaft holes are equipped on the pair of connecting lug, and swing connection through the pin shaft and gate valve. The utility model discloses a discharge gate valve mechanism for ore pulp sorting device, on one hand adopts the cylinder drive gate valve vertical movement to carry out the interception seal to the discharge pipe, on the other hand, the part of the gate valve for sealing is designed as the semisphere, makes the gate valve with the cylinder and have certain rotation swing space, makes up the defect that the movement accuracy of cylinder mechanism is relatively low, makes the mechanism can adapt to the working environment of high -speed fluid.

Description

Technical Field

[0001] This utility model belongs to the field of fluid sealing technology for separators, specifically, it relates to a discharge gate valve mechanism for a slurry separation device. Background Technology

[0002] In the design of sealing and shut-off systems for industrial fluids, butterfly valves, ball valves, or knife valves are commonly used to cut off or seal the fluid. However, these designs are not ideal for fluid shut-off in slurry separators. This is mainly because the liquid in the separator contains a large amount of suspended particulate matter. Conventional valve structures have short lifespans and high wear under these operating conditions, and are prone to leakage or seal failure. Furthermore, replacing conventional valves is time-consuming, labor-intensive, and costly. Therefore, it is necessary to design a fluid shut-off structure specifically for slurry separators. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the purpose of this utility model is to provide a discharge gate valve mechanism for a slurry separation device, so as to improve its service life while also satisfying the purpose of simple structure and easy maintenance and replacement.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A discharge gate valve mechanism for a slurry separation device includes a cylinder mechanism and a gate valve. The cylinder mechanism has a telescopic rod, the lower end of which is movably connected to the gate valve, wherein:

[0006] The lower end of the telescopic rod is provided with an inverted "Y" shaped connecting part. The top of the connecting part is a connector head that connects to the telescopic rod, and the bottom is a pair of connecting ears, thus forming an inverted "Y" shape. The pair of connecting ears are provided with a pair of opposing pin holes, which are movably connected to the gate valve through pins.

[0007] According to a preferred embodiment of the present invention, the gate valve includes a valve ball at the bottom, a connecting rod extending from the upper end of the valve ball, and a connecting block provided at the top end of the connecting rod, wherein a through hole is provided in the middle of the connecting block.

[0008] Furthermore, the thickness of the connecting block of the gate valve is less than the spacing between the pair of connecting ears. The connecting block extends between the pair of connecting ears, and the pin passes through the pin hole of one connecting ear, the through hole of the connecting block, and the pin hole of the other connecting ear in sequence, so as to movably connect the gate valve and the telescopic rod.

[0009] According to this utility model, the bottom of the cylinder mechanism is supported by a fixed bracket, which is fixed to the cover plate provided above the bottom flow channel.

[0010] According to this utility model, the top end of the connector is provided with a threaded hole, and the bottom end of the telescopic rod of the cylinder mechanism is provided with an external thread, which is adapted to the threaded hole at the top end of the connector, and is connected and fixed to the telescopic rod of the cylinder structure through a threaded connection.

[0011] According to this utility model, the lower half of the valve ball is a spherical or conical surface that is larger at the top and smaller at the bottom, and the upper half is a spherical or conical surface that is smaller at the top and larger at the bottom.

[0012] According to a preferred embodiment of the present invention, the outer surfaces of the connecting rod and the valve ball are provided with a coating layer. Preferably, the coating layer is rubber.

[0013] The discharge gate valve mechanism of this utility model for a slurry separation device uses a cylinder to drive the gate valve to move vertically to intercept and seal the discharge pipe. On the other hand, the sealing part of the gate valve is designed as a hemispherical shape, so that there is a certain rotational swing space between the gate valve and the cylinder, which makes up for the low motion accuracy of the cylinder mechanism and enables the mechanism to adapt to the working environment of high-speed fluid. At the same time, a soft protective layer is wrapped around the outer periphery of the gate valve to reduce losses while achieving the sealing function. Attached Figure Description

[0014] Figure 1 This is an exploded view of the discharge gate valve mechanism used in a slurry sorting unit.

[0015] Figure 2 This is a partial cross-sectional schematic diagram of the discharge gate valve mechanism used in a slurry sorting unit.

[0016] Figure 3 This is a schematic diagram of a gate valve.

[0017] Figure 4 This is a schematic diagram of the inverted "Y" shaped connection.

[0018] Drawing number explanation:

[0019] 10-Cylinder structure; 11-Telescopic rod; 20-Gate valve; 21-Valve ball; 22-Connecting rod; 23-Connecting block; 24-Through hole; 30-Fixed bracket; 40-Cover plate; 50-Underflow groove; 51-Discharge pipe; 52-Upper edge; 60-Connecting part; 61-Connecting head; 62-Connecting ear; 63-Pin hole; 64-Pin. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0021] like Figure 1 and Figure 2As shown, this embodiment is a discharge gate valve mechanism for a slurry separation device. The discharge gate valve mechanism includes a cylinder mechanism 10 and a gate valve 20. The bottom of the cylinder mechanism 10 is supported by a fixed bracket 30, which is fixed to a cover plate 40 provided above the bottom flow channel 50. The cylinder mechanism 10 has a telescopic rod 11, which can extend and retract from the cylinder mechanism 10 by air pressure. The lower end of the telescopic rod 11 is movably connected to the gate valve 20.

[0022] like Figure 3 As shown, the gate valve 20 includes a valve ball 21 at the bottom, a connecting rod 22 extending from the upper end of the valve ball 21, and a connecting block 23 provided at the top of the connecting rod 22. A through hole 24 is provided in the middle of the connecting block 23.

[0023] like Figure 4 As shown, the lower end of the telescopic rod 11 is provided with an inverted "Y"-shaped connecting part 60. The top of the connecting part 60 is a connecting head 61, and the bottom is a pair of connecting ears 62, thus forming an inverted "Y"-shaped configuration. The top of the connecting head 61 is provided with a threaded hole 63 for connecting and fixing to the telescopic rod 11 of the cylinder structure 10. The pair of connecting ears 62 are provided with a pair of opposing pin holes (not shown in the figure) for movably connecting to the gate valve 20 through pins 64. Specifically, the thickness of the connecting block 23 of the gate valve 20 is less than the distance between the pair of connecting ears 62, so that the connecting block 23 can extend into the pair of connecting ears 62. The pin 64 passes sequentially through the pin hole of one connecting ear 62, the through hole 24 of the connecting block 23, and the pin hole of the other connecting ear 62, thereby movably connecting the gate valve 20 and the telescopic rod 11.

[0024] It is easy to understand that the bottom end of the telescopic rod 11 of the cylinder structure 10 is provided with an external thread, which is adapted to the threaded hole 63 at the top end of the connector 61 of the connecting part 60, so as to be threadedly connected to the connecting part 60.

[0025] Preferably, the lower half of the valve ball 21 is a spherical or conical surface that is larger at the top and smaller at the bottom, while the upper half is a spherical or conical surface that is smaller at the top and larger at the bottom. On the one hand, this provides a structural transition between the valve ball 21 and the extension rod 22; on the other hand, the spherical or conical surface configuration helps reduce the resistance of the valve ball 21 in the fluid.

[0026] In addition, since the slurry contains a large amount of suspended particulate matter, and the valve ball 21 also serves to cut off the fluid and seal, the outer surfaces of the connecting rod 22 and the valve ball 21 are provided with a coating layer, which is a soft protective layer, preferably rubber.

[0027] Back Figure 2The bottom of the underflow trough 50 is equipped with a discharge pipe 51, and the bottom surface of the underflow trough 50 is designed as an inclined surface facing the discharge pipe 51, so that when the sorting equipment is working, the slurry carrying suspended particles can easily flow to the discharge pipe 51. Since the gate valve 20 and the telescopic rod 11 are movably connected by the connecting part 60 and the pin 64, the gate valve 20 has a certain swing space under the connection and drive of the cylinder mechanism 10, thus giving the gate valve 20 a certain amount of redundancy when it contacts the discharge pipe 51. In this way, when the gate valve 20 falls, the valve ball 21 can swing left and right due to the pin connection at the top of the gate valve 20. The lower half of the valve ball 21 initially makes point contact with the upper edge 52 of the discharge pipe 51. Through the spherical or conical surface structure of its lower half, the position of the valve ball 21 is gradually corrected, and finally the point contact becomes a line contact, thereby achieving a complete seal on the discharge pipe 51.

[0028] Although the present invention has been described in detail above through specific embodiments, it should be understood that the above description is only a preferred embodiment of the present invention. Those skilled in the art can make appropriate modifications, equivalent substitutions and improvements within the spirit and principles of the present invention, all of which should be included within the protection scope of the present invention.

Claims

1. A discharge gate valve mechanism for a mineral concentrate separation device, characterized by, The discharge gate valve mechanism includes a cylinder mechanism (10) and a gate valve (20). The cylinder mechanism (10) has a telescopic rod (11), the lower end of which is movably connected to the gate valve (20), wherein: The lower end of the telescopic rod (11) is provided with an inverted "Y" shaped connecting part (60). The top of the connecting part (60) is a connector (61) connected to the telescopic rod (11), and the bottom is a pair of connecting ears (62), thus forming an inverted "Y" shaped configuration. The pair of connecting ears (62) are provided with a pair of opposing pin holes, which are movably connected to the gate valve (20) through pins (64).

2. A discharge gate valve mechanism for a mineral concentrate separation device according to claim 1, characterised in that, The gate valve (20) includes a valve ball (21) at the bottom, a connecting rod (22) extending from the upper end of the valve ball (21), and a connecting block (23) provided at the top end of the connecting rod (22), wherein a through hole (24) is provided in the middle of the connecting block (23).

3. A discharge gate valve mechanism for a mineral concentrate separation device according to claim 2, characterised in that, The thickness of the connecting block (23) of the gate valve (20) is less than the spacing between the pair of connecting ears (62). The connecting block (23) extends between the pair of connecting ears (62). The pin (64) passes through the pin hole of the connecting ear (62) on one side, the through hole (24) of the connecting block (23), and the pin hole of the connecting ear (62) on the other side in sequence, so as to movably connect the gate valve (20) and the telescopic rod (11).

4. A discharge gate valve mechanism for a mineral concentrate separation device according to claim 1, characterized in that, The bottom of the cylinder mechanism (10) is supported by a fixed bracket (30), which is fixed to the cover plate (40) provided above the bottom flow channel (50).

5. A discharge gate valve mechanism for a mineral concentrate separation device according to claim 1, wherein, The connector (61) has a threaded hole (63) at its top end, and the telescopic rod (11) of the cylinder mechanism (10) has an external thread at its bottom end, which is adapted to the threaded hole (63) at the top end of the connector (61) and is connected and fixed to the telescopic rod (11) of the cylinder mechanism (10) by threaded connection.

6. A discharge gate valve mechanism for a mineral concentrate separation device according to claim 2, wherein, The lower half of the valve ball (21) is a spherical or conical surface that is larger at the top and smaller at the bottom, while the upper half is a spherical or conical surface that is smaller at the top and larger at the bottom.

7. A discharge gate valve mechanism for a mineral concentrate separation device according to claim 2, wherein, The outer surfaces of the connecting rod (22) and the valve ball (21) are provided with a coating layer.

8. A discharge gate valve mechanism for a mineral concentrate separation device according to claim 7, characterised in that, The coating layer is made of rubber.

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