Flotation cell ore pulp liquid level meter

Abstract

The invention discloses a flotation tank ore pulp liquid level meter which comprises a laser distance measuring plate, a balancing weight, a laser distance measuring instrument, a pulley structure, a lifter, a limiting plate, a guide barrel, a connecting steel rope, a pulse cleaner, a floating ball and a flow stabilizing plate. The guide barrel has a hollow structure; the flow stabilizing plate is of a cross-shaped structure internally provided with a circular ring. The lifter is arranged above the limiting plate; the connecting steel rope is used for connecting the floating ball and the laser ranging plate; the limiting plate is arranged below the pulley structure of the liquid level meter and close to one side of the floating ball; the balancing weight is positioned above the laser ranging plate; the laser ranging plate is arranged on the outer side of the ore pulp tank; the laser range finder is located above the laser range finding plate and installed on the lower side of the pulley structure. The pulse cleaner is fixed on the inner side of the guide barrel; the problems that in the prior art, foam viscosity is high, attachment is easily formed on the surface of a buoy, liquid level errors are caused, a floating ball is easily affected by the flow velocity of ore pulp, and the height of an ore pulp pool is different, so that installation is inconvenient are solved.

Description

Technical Field

[0001] The invention relates to the technical field of ore pulp level measuring equipment, in particular to an ore pulp level meter for a flotation tank. Background Art

[0002] In mining machinery, accurate measurement of liquid level is crucial for the stable operation of flotation machines. In the measurement of liquid level of high-viscosity foam slurry, the traditional measurement system is usually composed of components such as measuring containers, floats and measuring instruments. However, in actual operation, due to the high viscosity of foam, it is easy to form adhesion on the surface of the float, which will cause large errors in liquid level measurement and affect the precise control of the mineral processing process. In addition, the float is greatly affected by the slurry flow rate, which will also affect the measurement results. In addition, the height of the slurry pool is different, and it is necessary to customize liquid level gauges of different heights during installation, which is very troublesome and causes waste of resources. Summary of the invention

[0003] The purpose of the present invention is to provide a flotation tank slurry level meter for the above situation, which solves the problems in the prior art such as the high viscosity of foam, which is easy to adhere to the surface of the float and cause liquid level error, the problem that the float is easily affected by the slurry flow rate, and the problem that the installation is inconvenient due to different heights of the slurry pool.

[0004] The specific scheme of the present invention is: a flotation tank slurry level meter, including a pulley structure, a flow stabilizer, an elevator, a float, a limit plate, a counterweight, a laser distance measuring plate, a pulse cleaner and a laser distance meter. The pulley structure adopts a double pulley structure composed of two fixed pulleys and is arranged on the uppermost side of the level meter, and the two ends of the connecting steel rope are connected to the laser distance measuring plate and the float. The flow stabilizer adopts a cross-shaped structure, and the partition adopts a honeycomb-shaped hollow cavity-like structure. The limit plate is installed on the side of the fixed pulley of the level meter close to the float. The float is connected to the connecting steel rope with a conical structure. The elevator is located above the limit plate, the counterweight is located above the laser distance measuring plate, and the laser distance measuring plate is connected to the float through the connecting steel rope and is located outside the level meter. The laser distance meter is located above the laser distance measuring plate and is installed on the lower side of the pulley structure. The pulse cleaner is fixed on the inner side of the guide barrel and is installed in alignment with the float.

[0005] The flow stabilizing plate adopts two partitions to cross each other to form a cross structure, and hexagonal through holes are placed in the partitions, which are hollow.

[0006] In order to better achieve the adjustment effect, the lifter is arranged between the pulley structure and the limit plate of the liquid level gauge.

[0007] In order to achieve the purpose of measurement more quickly, the two fixed pulleys in the pulley structure are arranged in parallel, and the laser distance measuring plate and the floating ball are arranged in parallel.

[0008] Furthermore, the laser distance measuring plate on the left side of the pulley structure is outside the slurry pool, and a laser distance measuring device is placed directly above the laser distance measuring plate for distance measurement.

[0009] Furthermore, the limit plate is a solid barrel-shaped structure with an opening design above the limit plate to prevent inaccurate measurement due to air pressure imbalance. The connecting steel rope is connected to the float at one end and to the laser ranging plate and the counterweight at the other end.

[0010] In order to reduce the impact of foam on the liquid level, a special ore inlet is designed to reduce the amount of foam entering the guide barrel, thereby reducing the impact of the foam layer on the liquid level measurement and facilitating the measurement of the true liquid level of the flotation tank slurry.

[0011] Furthermore, the float is in the shape of a water drop, which can reduce the adsorption of high-viscosity slurry and reduce the problem of the adsorption of slurry affecting the quality and density of the float. A plug-in connector is provided on the top of the float to facilitate installation and disassembly.

[0012] Furthermore, the pulse cleaner is fixed on the inner side of the guide barrel and installed in alignment with the float, which can effectively remove the high-viscosity slurry attached to the surface of the float.

[0013] The beneficial effects achieved by the present invention using the above structure are as follows: The new type of liquid level gauge with a fixed pulley proposed in this solution effectively solves the problem that the liquid level gauges on the market currently need to be customized during installation due to different heights. It also effectively solves the problem of inaccurate level readings due to changes in the slurry flow rate and the adsorption of the slurry on the float of the liquid level gauge when currently used to measure the slurry level. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the device of the present invention; Figure 2 It is a schematic diagram of the structure of the flow stabilizing plate of the device of the present invention.

[0015] Among them, 1. laser distance measuring plate, 2. counterweight block, 3. laser distance measuring instrument, 4. pulley structure, 5. lifter, 6. limit plate, 7. guide bucket, 8. connecting steel rope, 9. pulse cleaner, 10. float, 11. flow stabilizing plate, 12. filterable mine inlet. DETAILED DESCRIPTION

[0016] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. It is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the invented product is usually placed when used, which are only for the convenience of describing the present invention or simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0017] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it 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, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] See also Figure 1 , Figure 2 The present invention is mainly divided into four parts, including the laser distance measuring plate 1 and the counterweight 2, the pulley structure 4, the lifter 5 and the guide barrel 7. The first part involves the reading of the final result of the liquid level meter. After the level meter float 10 at the right end of the overall structure is stable, the laser distance measuring plate 1 connected by the steel rope 8 also tends to be stable. At this time, the laser distance meter 3 reads the final liquid level result. If the right float 10 has high viscosity ore slurry adhesion, the mass of the float 10 will change. The role of the counterweight 2 is to add an inertia to the laser distance measuring plate 1 to reduce the impact of the pulley structure 4 being disconnected due to its mass change. In order to achieve the purpose of efficient measurement, the fixed pulley 1 and the fixed pulley 2 of the pulley structure are arranged in parallel, and the laser distance measuring plate 1 and the float 10 are arranged in parallel. The lifter 4 serves to adjust the height, which is convenient for installation in slurry pools at different heights. The guide barrel 7 is partially placed in the slurry pool, wherein the pulse cleaner 9 can effectively remove the high-viscosity slurry attached to the surface of the float, wherein the setting of the flow stabilizer 11 can effectively isolate the influence of the flow of the high-viscosity slurry on the float.

[0019] like Figure 1-2As shown, the device of the present invention mainly consists of 1. a laser rangefinder plate, 2. a counterweight block, 3. a laser rangefinder, 4. a pulley structure, 5. a lifter, 6. a limit plate, 7. a guide barrel, 8. a connecting steel rope, 9. a pulse cleaner, 10. a float, 11. a flow stabilizer, and 12. a filterable ore inlet. The guide barrel 7 is made of stainless steel sheet iron, and the upward filterable ore inlet 12 at the bottom can effectively reduce the high-viscosity ore pulp foam from entering the liquid level meter, and can effectively prevent the foam from entering the liquid level meter and affecting the reading result. The flow stabilizer 11 can isolate the water drop-shaped float 10 from the slurry flowing in the outside world, reduce the influence of the flow of the slurry on the ups and downs of the float 10, and improve the accuracy of the detection result; at the same time, the slurry in the liquid level meter in this patent directly enters the flow stabilizer 11 through the opening at the bottom of the liquid level meter, so the density of the slurry medium is the same as that of the slurry medium of the flow stabilizer 11, eliminating the problem of inaccurate measurement results caused by different densities of the slurry medium, and a vent hole is also provided on the top end surface of the guide barrel 7, so the air pressure in the liquid level meter is the same as the external air pressure, eliminating the problem of inaccurate test results caused by the increase in pressure due to the inability to discharge the slurry gas due to the sealing of the liquid level meter.

[0020] The float 10 is in the shape of a water drop with its tip pointing downward, which can further reduce the impact of foam on the float 10. A connecting nut is provided on the top of the float 10, which can be easily disassembled for regular cleaning or replacement to prevent the accumulation of excessive high-viscosity slurry causing changes in the mass density of the float. The float 10 is connected to the laser rangefinder board 1 at the other end through a steel rope 8, and is measured by the laser rangefinder 3 located on the lower side of the slider structure 4. The laser rangefinder board 1 reflects the light emitted by the laser rangefinder 3 to measure the liquid level height and read the final liquid level height.

[0021] The present invention has a simple structure and a reasonable design. When the liquid level height of the slurry needs to be detected, after using the lifter 5 to adjust the appropriate height, the entire device only needs to be placed in the slurry, and the laser ranging plate 1 connected by the steel rope 8 is placed outside the slurry. After the float 10 inside the level meter is stable and the laser ranging plate 1 under the pulley structure 4 does not move, the laser ranging plate 1 can be reflected and measured by the laser rangefinder 3 to measure the liquid level height.

[0022] The lifter used in the present invention can be any one of a small air cylinder, a small oil cylinder, an electric push rod or other screw-type driven lifting mechanism, which is part of the prior art and will not be described in detail here.

Claims

1. A flotation tank slurry level meter, characterized in that: include: Laser distance measuring plate, counterweight, laser distance meter, pulley structure, lifter, limit plate, guide barrel, connecting steel rope, pulse cleaner, float and flow stabilizing plate; the guide barrel has a hollow structure; the flow stabilizing plate is a cross-shaped structure with an inner ring; the lifter is arranged above the limit plate; the float is a spherical structure with a detachable device; the connecting steel rope is used to connect the float and the laser distance measuring plate; the limit plate is arranged below the pulley structure of the liquid level meter and close to the float; the counterweight is located above the laser distance measuring plate; the laser distance measuring plate is arranged outside the slurry pool; the laser distance meter is located above the laser distance measuring plate and installed on the lower side of the pulley structure; the pulse cleaner is fixed on the inner side of the guide barrel.

2. A flotation tank slurry level meter according to claim 1, characterized in that: The guide barrel is a hollowed-out round barrel with a length of 1000-2000 mm and a diameter of 100-300 mm. The top of the barrel is a hollowed-out limiting plate, and the bottom of the barrel is a flow stabilizing plate.

3. A flotation tank slurry level meter according to claim 1, characterized in that: The limiting plate is a solid cylindrical structure, and an opening is arranged above the limiting plate.

4. A flotation tank slurry level meter according to claim 1, characterized in that: A plug-in connector is provided on the top of the float to facilitate installation and disassembly, and the float is in the shape of a water drop.

5. A flotation tank slurry level meter according to claim 1, characterized in that: The counterweight block is used to improve the stability of the laser distance measuring board to reduce the influence of the change of the mass of the floating ball.

6. A flotation tank slurry level meter according to claim 1, characterized in that: The laser rangefinder is fixed on the lower side of the pulley structure, facing the laser rangefinder plate, and is used to convert the slurry level into an electrical signal, which is convenient for slurry level collection and transmission.

7. A flotation tank slurry level meter according to claim 1, characterized in that: The pulse cleaner is fixed on the inner side of the guide barrel and is installed aligned with the float.

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