A gold ore pulp sampling device for gold mines

Abstract

The present invention relates to the field of pulp sampling devices, in particular to a gold ore pulp sampling device for gold mines, which includes a cross-shaped four-way pipe. The two ends of the four-way pipe located on one axis are respectively a pulp inlet and a pulp outlet, and the two ends of the four-way pipe located on the other axis are both sampling ports. Cover plates are hermetically and fixedly arranged at the two sampling ports. Discharge ports are arranged on the sides of the two cover plates away from each other, and solenoid valves are connected to the discharge ports; pistons are hermetically slid in the two sampling ports. The present invention only needs to use a low-voltage DC portable mobile power source to drive the solenoid valves and electromagnetic push rods to work, adjust the pressure difference of the static pressure acting on the two pistons, and use the pressure difference to realize the reciprocating movement of the pistons, continuously outputting pulp samples; the sampling pipe of the present invention can sample different positions in the pipeline, and the sampling range accounts for a relatively large proportion of the pipeline flow cross-section, and can output more accurate pulp samples.

Description

Technical Field

[0001] The present invention relates to the field of pulp sampling devices, and in particular to a gold pulp sampling device for gold mines. Background Art

[0002] The pulp sampling equipment has a short pipe connected in series on the pulp conveying pipeline as the main body, and a sampling pipe inserted radially along the short pipe. The sampling pipe is directly driven by a cylinder or a motor-driven turntable swing arm to drive the sampling pipe to reciprocate and sample from the pulp flowing through the short pipe.

[0003] The two existing driving forms of pulp sampling equipment are suitable for different operating environments. For example, cylinder-driven sampling is suitable for use in an environment with a compressed air source, while motor-driven sampling is suitable for use in a factory area where it is convenient to obtain 220V or 380V power. However, the above two driving forms are still difficult to cover all pulp production scenarios. When the sampling points passed by the pulp conveying pipeline are difficult to provide industrial electricity or compressed air energy, the applicability of the existing pulp sampling equipment will become poor. Therefore, the present invention proposes a gold pulp sampling device for gold mines that uses a low-voltage DC power supply and realizes passive pulp sampling by utilizing the pulp conveying pressure. Summary of the Invention

[0004] In view of the problem in the above or the prior art that it is difficult to use the existing pulp sampling equipment to complete sampling when the sampling points passed by the pulp conveying pipeline are difficult to provide industrial electricity or compressed air energy, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a gold pulp sampling device for gold mines.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A gold pulp sampling device for gold mines includes a cross-shaped four-way pipe. The two ends of the four-way pipe located on one axis are respectively a pulp inlet and a pulp outlet, and the two ends of the four-way pipe located on the other axis are both sampling ports. Sealing covers are fixedly arranged at both sampling ports. Discharge ports are arranged on the sides of the two covers away from each other, and electromagnetic valves are connected to the discharge ports. Pistons are sealed and slidably arranged in the two sampling ports, and short pipes are inserted between the adjacent cover and piston. Fixedly installed electromagnetic push rods are provided at the ends of the two short pipes away from each other. Circular holes are opened on the sides of the two short pipes away from the two pistons, and sliders are sealed and slidably sleeved in the short pipes at the openings. The sliders are coaxially connected to the adjacent electromagnetic push rods. A sampling pipe is also hermetically connected between the two short pipes, and a notch is opened on the side wall of the sampling pipe.

[0007] As a preferred solution of the gold pulp sampling device of the present invention, wherein: the short pipe is hermetically and slidably inserted into the cover, and one end of the short pipe is fixedly sleeved with the piston.

[0008] As a preferred embodiment of the gold ore pulp sampling device for the gold mine of the present invention, the following is provided: at one end of the two short pipes located between the two pistons, swing arms are rotatably and sealingly connected. The two ends of the swing arms away from the short pipes are respectively sealingly and rotatably connected to both ends of the sampling pipe. The swing arms are hollow and communicate with the sampling pipe and the short pipes.

[0009] As a preferred embodiment of the gold ore pulp sampling device for the gold mine of the present invention, the following is provided: the long side of the notch on the sampling pipe is arranged parallel to the axis direction of the sampling pipe, and a flow disturbing plate is fixedly clamped on the back of the sampling pipe at the notch.

[0010] As a preferred embodiment of the gold ore pulp sampling device for the gold mine of the present invention, the following is provided: the flow disturbing plate is arranged in a "Y" shape. One end of the short side of the "Y" shape of the flow disturbing plate is fixedly sleeved in contact with the inner wall of the sampling pipe, and the other short side of the "Y" shape of the flow disturbing plate is arranged along the arc tangent direction of the outer wall of the sampling pipe.

[0011] As a preferred embodiment of the gold ore pulp sampling device for the gold mine of the present invention, the following is provided: a lead screw is fixedly connected to the outer wall of the swing arm in a direction away from the short pipe, and the lead screw is coaxial with the short pipe. The lead screw is threadedly connected with a nut, and the outer wall of the nut is fixedly connected with the inner wall of the four-way pipe.

[0012] As a preferred embodiment of the gold ore pulp sampling device for the gold mine of the present invention, the following is provided: the movement stroke of the piston is equal to half of the pitch of the lead screw.

[0013] As a preferred embodiment of the gold ore pulp sampling device for the gold mine of the present invention, the following is provided: a proximity switch is sealingly and fixedly connected to the cover plate, and the proximity switch is arranged at the top edge of the corresponding piston.

[0014] As a preferred embodiment of the gold ore pulp sampling device for the gold mine of the present invention, the following is provided: the discharge port of the cover plate is arranged at the bottom of the short pipe, and the discharge port is connected to a bent pipe. One end of the bent pipe extends downward and is connected to an electromagnetic valve.

[0015] As a preferred embodiment of the gold ore pulp sampling device for the gold mine of the present invention, the following is provided: the round holes are arranged in an annular array with respect to the short pipe.

[0016] The beneficial effects of the gold ore pulp sampling device for the gold mine of the present invention: The present invention only needs to use a low-voltage DC portable mobile power source to drive the electromagnetic valve and the electromagnetic push rod to work, adjust the pressure difference acting on the two pistons by static pressure, and utilize the pressure difference to realize the reciprocating movement of the pistons, continuously outputting pulp samples; the sampling pipe of the present invention can sample different positions in the pipeline, and the sampling range accounts for a relatively large proportion of the pipeline flow cross-section, and can output pulp samples with more accurate information. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the structure of a gold slurry sampling device for gold mines.

[0019] Figure 2 for Figure 1 Cross-sectional view of a pipe.

[0020] Figure 3 for Figure 2 Schematic diagram of the structure after further cutting of the slurry sampling channel.

[0021] Figure 4 This is a cross-sectional view of the structure of the sampling tube.

[0022] In the figure: 100, four-way pipe; 101, slurry inlet; 102, slurry outlet; 103, sampling port; 104, cover plate; 105, discharge port; 106, solenoid valve; 107, piston; 108, short tube; 109, solenoid push rod; 110, round hole; 111, slider; 112, sampling tube; 113, notch; 114, swing arm; 115, spoiler; 116, screw rod; 117, nut; 118, proximity switch; 119, elbow. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] Example 1, reference Figures 1 to 4 This embodiment provides a gold slurry sampling device for gold mines, which uses the pipeline pressure of the slurry as the sampling power source, and realizes the use of a more easily available and safe low-voltage DC power supply to drive the sampling device to complete the sampling. Figure 1 As shown, it includes a cross-shaped four-way pipe 100, the two ends of the four-way pipe 100 located on one axis are respectively a slurry inlet 101 and a slurry outlet 102, and the two ends of the four-way pipe 100 located on another axis are respectively sampling ports 103. Figure 2As shown in the figure, two sampling ports 103 are both fixedly sealed with covers 104. On the sides of the two covers 104 away from each other, discharge ports 105 are provided, and electromagnetic valves 106 are connected to the discharge ports 105. Pistons 107 are slidably sealed in the two sampling ports 103, and short pipes 108 are inserted between the adjacent covers 104 and pistons 107. Electromagnetic push rods 109 are fixedly installed at the ends of the two short pipes 108 away from each other. As Figure 3 shown in the figure, circular holes 110 are provided on the sides of the two short pipes 108 away from each other of the two pistons 107. The circular holes 110 are arranged in an annular array with respect to the short pipes 108. Sliders 111 are slidably sleeved in the short pipes 108 in a sealed manner at the openings. The sliders 111 are coaxially connected to the adjacent electromagnetic push rods 109. A sampling pipe 112 is also sealed and connected between the two short pipes 108, and a notch 113 is provided on the side wall of the sampling pipe 112.

[0025] Specifically, as Figure 2 shown in the figure, the cover 104 is fixedly sealed and connected with a proximity switch 118, and the proximity switch 118 is arranged at the top edge of the corresponding piston 107. The discharge port 105 of the cover 104 is arranged at the bottom of the short pipe 108, and the discharge port 105 is connected to a bent pipe 119. One end of the bent pipe 119 extends downward and is connected to the electromagnetic valve 106.

[0026] The present invention provides a pulp sampling device, especially a technology for realizing pulp sampling by using the pressure of a pulp conveying pipe. Different from the existing sampling devices driven by motors that require industrial power and the sampling devices driven by cylinders that require compressed air sources, the present invention can be powered by a small mobile low-voltage DC power supply. Therefore, it can be installed and used at any position of the pulp conveying pipeline, and the usage restriction conditions are relatively small. For the existing two sampling devices with different driving forces, they are limited by the need for a powerful power supply and air source to be used. Therefore, the installation and usage positions are more restricted compared to the present invention.

[0027] The working principle of the sampling device of the present invention is as follows: First, it utilizes the static pressure generated by the powerful pump pressure during pulp transportation on the piston 107. Second, it utilizes the pressure difference on both sides of the piston 107 to drive the piston 107 to move. Third, by controlling the pressure states of the two pistons 107, the reciprocating actions of pumping and discharging pulp are realized;

[0028] The pressure pushing the piston 107 comes from the static pressure of the fluid in the pipeline on the pipe wall, and the static pressure is independent of the area of the piston 107 and is not affected by the area of the piston 107. However, under the same static pressure, the total pressure received by the piston 107 depends on the area of the piston 107. Therefore, as Figure 2As shown, a pair of pistons 107 with a relatively large end area are used in the device to obtain sufficient driving force to overcome the resistance of their movement. The distance between the two pistons 107 is relatively fixed. The static pressure on the side of the piston 107 facing the inside of the pipeline is the atmospheric pressure and is not adjusted. However, on the side of the piston 107 facing away from the inside of the pipeline, the on and off of the static pressure can be controlled by whether it is connected to the inside of the pipeline. Therefore, the pressure difference on both sides of the piston 107 is controllable. When the thrust generated by the pressure difference is greater than the movement resistance of the piston 107, the piston 107 can be moved. During the movement, for the piston 107 away from the cover plate 104, the volume between it and the cover plate 104 increases to extract the pulp, while for the piston 107 close to the cover plate 104, the pulp therein is extruded as a sample. Repeated reciprocating movements can continuously sample.

[0029] The specific process is as follows. Taking Figure 3 as an example, the right solenoid valve 106 on the right side of the four-way pipe 100 closes the right discharge port 105, and the right electromagnetic push rod 109 drives the slider 111 to open the round hole 110, so that the pulp enters the back of the piston 107 through the sampling pipe 112, the swing arm 114 and the round hole 110 on the short pipe 108, thereby making the pressures on both sides of the piston 107 balanced. The left electromagnetic push rod 109 on the left side of the four-way pipe 100 drives the slider 111 to close the round hole 110, and the left solenoid valve 106 is opened, so that the pulp on the back of the left piston 107 is connected to the lower-pressure atmosphere. This causes the left piston 107 to be subjected to a large pressure difference, and this pressure difference pushes the left piston 107 towards the left cover plate 104 to extrude the pulp through the left discharge port 105. At the same time, it also drives the right piston 107 to move away from the right cover plate 104, and further pumps more pulp into the space between the right piston 107 and the right cover plate 104, preparing for the next extrusion of the pulp sample.

[0030] During the process, the proximity switch 118 is used to identify whether the piston 107 has moved in place. Taking Figure 2 as an example, the left piston 107 moves to the left to discharge the pulp. When this piston 107 moves to the end point of the stroke, it will also trigger the proximity switch 118 on the left side. The device uses the signal of this proximity switch 118 as a trigger condition to control the two electromagnetic push rods 109 to switch the telescopic state and the two solenoid valves 106 to switch the opening and closing state, so that the piston 107 changes direction and moves to the right. The same is true when the right piston 107 moves to the right and triggers the proximity switch 118 on the right side.

[0031] In summary, sampling is required only when the pulp is being transported in the pulp pipeline. At the same time, there will be sufficient pipeline pressure inside the pulp pipeline to provide the driving force for the present invention. The present invention only needs to use a portable mobile power supply with low-voltage direct current (such as 24V direct current) to drive the solenoid valve 106 and the electromagnetic push rod 109 to work, adjust the pressure difference of the static pressure acting on the two pistons 107, and utilize the pressure difference to achieve the reciprocating motion of the piston 107, continuously outputting pulp samples.

[0032] Example 2. The pulp sampling device of the present invention is also significantly different from the existing pulp sampling equipment in that the sampling insertion tube of the existing pulp sampling equipment can only move linearly along the radial direction of the pipeline to extract pulp. Since the cross-section of the pipeline is circular, the distribution of sampling positions is not uniform enough.

[0033] As Figure 3 shown, the short tube 108 is hermetically and slidably inserted into the cover plate 104. One end of the short tube 108 is fixedly sleeved with the piston 107. One ends of the two short tubes 108 located between the two pistons 107 are rotatably and hermetically connected with swing arms 114 respectively. The ends of the two swing arms 114 away from the short tube 108 are respectively hermetically and rotatably connected with both ends of the sampling tube 112. The swing arms 114 are hollow and communicate with the sampling tube 112 and the short tube 108. The outer wall of the swing arm 114 is fixedly connected with a lead screw 116 in a direction away from the short tube 108, and the lead screw 116 is coaxial with the short tube 108. The lead screw 116 is threadedly connected with a nut 117, and the outer wall of the nut 117 is fixedly connected with the inner wall of the four-way pipe 100. The movement stroke of the piston 107 is equal to half of the pitch of the lead screw 116; As Figure 2 and Figure 4 shown, the long side of the notch 113 on the sampling tube 112 is arranged parallel to the axis direction of the sampling tube 112, and a spoiler 115 is fixedly clamped on the back of the sampling tube 112 where the notch 113 is located. The spoiler 115 is arranged in a "Y" shape, and one end of the short side of the "Y" shape of the spoiler 115 is fixedly sleeved with the inner wall of the sampling tube 112 in a fitting manner, and the other short side of the "Y" shape of the spoiler 115 is arranged along the arc tangent direction of the outer wall of the sampling tube 112.

[0034] The sampling tube 112 of the present invention is horizontally placed inside the pipeline, making full use of the internal space of the four-way pipe 100. The swing arm 114 is used to enable the sampling tube 112 to swing up and down inside the pipeline, so that the sampling range of the sampling tube 112 covers most of the cross-sectional area of the pipeline flow. The sampling is more uniform, making the pulp sample information more accurate. Specifically, during the reciprocating movement of the piston 107, the lead screw 116 is driven to move relative to the nut 117 and the four-way pipe 100, so that the rotation of the lead screw 116 relative to the nut 117 drives the swing arm 114 and the sampling tube 112 to deflect. Among them, the sampling tube 112 can rotate freely relative to the swing arm 114, and the slurry inlet notch 113 of the sampling tube 112 holds up the spoiler 115 by the flow of the slurry to keep the notch 113 facing the reverse direction of the slurry flow.

[0035] In summary, the sampling tube 112 of the present invention can sample different positions in the pipeline, and the sampling range accounts for a relatively large proportion of the pipeline flow cross-section, and can output a pulp sample with more accurate information.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A gold pulp sampling device for gold mines, characterized in that: It includes a cross-shaped four-way pipe (100). The two ends of the four-way pipe (100) located on one axis are respectively a slurry inlet (101) and a slurry outlet (102), and the two ends of the four-way pipe (100) located on the other axis are both sampling ports (103). Cover plates (104) are hermetically and fixedly arranged at the two sampling ports (103). Discharge ports (105) are arranged on the sides of the two cover plates (104) away from each other, and electromagnetic valves (106) are connected to the discharge ports (105). Pistons (107) are hermetically and slidably arranged in the two sampling ports (103). Short pipes (108) are inserted between the adjacent cover plates (104) and pistons (107). Electromagnetic push rods (109) are fixedly installed at the ends of the two short pipes (108) away from each other. Circular holes (110) are opened on the sides of the two short pipes (108) away from the two pistons (107). Sliders (111) are hermetically and slidably sleeved in the short pipes (108) at the openings. The sliders (111) are coaxially connected to the adjacent electromagnetic push rods (109). A sampling pipe (112) is also hermetically connected between the two short pipes (108), and a notch (113) is opened on the side wall of the sampling pipe (112).

2. The gold pulp sampling device for gold mines according to claim 1, wherein: The short pipe (108) is hermetically and slidably inserted into the cover plate (104), and one end of the short pipe (108) is fixedly sleeved with the piston (107).

3. The gold pulp sampling device for gold mines according to claim 2, wherein: One end of each of the two short pipes (108) between the two pistons (107) is rotatably and hermetically connected with a swing arm (114). The ends of the two swing arms (114) away from the short pipes (108) are respectively rotatably and hermetically connected to the two ends of the sampling pipe (112). The swing arms (114) are hollow and communicate with the sampling pipe (112) and the short pipes (108).

4. The gold pulp sampling device for gold mines according to claim 3, wherein: The long side of the notch (113) on the sampling pipe (112) is arranged parallel to the axis direction of the sampling pipe (112), and a spoiler (115) is fixedly clamped on the back of the sampling pipe (112) at the notch (113).

5. The gold pulp sampling device for gold mines according to claim 4, wherein: The spoiler (115) is arranged in a "Y" shape. One end of a short side of the "Y" shape of the spoiler (115) is fixedly sleeved in contact with the inner wall of the sampling pipe (112), and the other short side of the "Y" shape of the spoiler (115) is arranged along the arc tangent direction of the outer wall of the sampling pipe (112).

6. The gold pulp sampling device for gold mines as described in claim 5, characterized in that: A lead screw (116) is fixedly connected to the outer wall of the swing arm (114) in the direction away from the short pipe (108). The lead screw (116) is coaxial with the short pipe (108). A nut (117) is threadedly connected to the lead screw (116), and the outer wall of the nut (117) is fixedly connected to the inner wall of the four-way pipe (100).

7. The gold pulp sampling device for gold mines according to claim 6, characterized in that: The movement stroke of the piston (107) is equal to half of the pitch of the lead screw (116).

8. The gold pulp sampling device for gold mines as described in claim 1, characterized in that: A proximity switch (118) is hermetically and fixedly connected to the cover plate (104), and the proximity switch (118) is arranged at the top edge of the corresponding piston (107).

9. The gold pulp sampling device for gold mines according to claim 8, characterized in that: The discharge port (105) of the cover plate (104) is arranged at the bottom of the short pipe (108), and the discharge port (105) is connected to an elbow pipe (119), and one end of the elbow pipe (119) faces downward and is connected to a solenoid valve (106).

10. The gold ore pulp sampling device for gold mines according to claim 1, characterized in that: The round holes (110) are arranged in an annular array with respect to the short pipe (108).

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