Foam collecting device of flotation equipment

Abstract

The utility model provides a foam collecting device of flotation equipment, which comprises a foam adsorption pipe, a negative pressure foam pump tank and a foam collecting pipe, and the foam adsorption pipe is provided with a plurality of adsorption holes; the negative pressure foam pump pool is provided with a closed cavity, the closed cavity is connected with a first conveying pump, and a foam collecting pipe is connected between the foam adsorption pipe and the closed cavity. Foam in the flotation tank body is adsorbed into the negative-pressure foam pump pool through the foam adsorption pipe and the foam collecting pipe, flotation foam is rapidly recycled, the problem that mineralized foam of large flotation equipment is difficult to discharge in time is effectively solved, the operation recycling rate of the flotation equipment is improved, the structure is simple, implementation is convenient, and cost is low. Flotation equipment can be modified on site through the technology, operability is high, and flotation froth with large viscosity can be recycled in time.

Description

Technical Field

[0001] The utility model relates to the technical field of flotation equipment, in particular to a foam collecting device of flotation equipment. Background Art

[0002] As the trend of mineral resource depletion at home and abroad becomes increasingly serious, the large-scale flotation equipment has become an inevitable trend in the future development of equipment. At present, some scientific research institutes and equipment manufacturers at home and abroad have made certain technical breakthroughs in the direction of large-scale flotation equipment. 3 The flotation machine has been successfully developed and industrial tests have been carried out on site at Jiangxi Copper. The research and development team represented by China University of Mining and Technology has made breakthrough progress in the development and application of flotation columns. However, whether it is a large-scale flotation machine or a flotation column, how to achieve the timely discharge of the mineralized flotation foam and thus improve the flotation efficiency of the flotation equipment is a major scientific research issue facing mineral processing workers.

[0003] There are two types of foam discharge devices in current flotation equipment: one is a forced discharge device, which uses a scraper or other similar equipment to force the flotation foam to be discharged. This form of foam discharge can only be applied to small flotation equipment and has certain limitations. In addition, the foam recovery efficiency is low and the scraper device has poor stability, making it difficult to apply to large flotation equipment. The other is to use the foam gravity method to let the flotation foam flow out by itself. Although it can be applied to large-scale flotation equipment, in order to increase the speed and channel of foam outflow, it is generally adopted to set a bubble pusher cone and add a foam guide trough on the slurry surface. The foam tube at the bottom of the bubble pusher cone and the foam guide trough will affect the slurry movement environment inside the flotation equipment, and also affect the movement trajectory of the mineralized bubbles, which has a certain impact on the floating of the mineralized bubbles. At the same time, some highly viscous foams have too slow gravity speeds and need to add a large amount of flushing water, resulting in too low foam concentration, which is not conducive to subsequent flotation operations. Summary of the invention

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the embodiment of the utility model provides a froth collecting device of a flotation device, which can realize the rapid collection of flotation froth.

[0005] The utility model embodiment proposes a foam collection device of a flotation equipment, comprising: a foam adsorption tube, a negative pressure foam pump pool and a foam collection tube, wherein the foam adsorption tube is horizontally arranged in the foam layer of the flotation tank body, and the foam adsorption tube is provided with a plurality of adsorption holes to adsorb the foam in the foam layer; the negative pressure foam pump pool has a closed cavity for collecting foam and an inlet and an outlet connected to the closed cavity, the outlet of the closed cavity is connected to a discharge pipe, and the discharge pipe is connected to a first delivery pump; one end of the foam collection tube is connected to the foam adsorption tube, and the other end of the foam collection tube extends from the inlet of the closed cavity into the closed cavity to deliver the foam adsorbed by the foam adsorption tube to the negative pressure foam pump pool.

[0006] In some embodiments, the foam adsorption tube includes a first tube and a second tube, the first tube is connected to the second tube, the first tube is annular, the second tube is a straight tube, the second tube is connected to the inner side of the first tube, and the first tube is connected to the foam collection tube.

[0007] In some embodiments, the second tubes are provided in plurality and are evenly distributed around the inner side of the first tube, the second tubes have a first end and a second end, the first end of the second tube points to the center of the first tube, the first end of the second tube is closed, the first ends of all the second tubes form a space for passing the stirring shaft, and the second ends of the second tubes are connected to the first tube.

[0008] In some embodiments, the foam adsorption tube and the foam collection tube are both made of corrosion-resistant metal material.

[0009] In some embodiments, a third tube is disposed at the center of the first tube, the third tube is commonly connected to the first ends of all the second tubes, the third tube is annular, and the third tube is concentric with the first tube.

[0010] In some embodiments, the foam adsorption tube is connected to the flotation cell through a lifting device to control the lifting and lowering of the foam adsorption tube in the flotation cell.

[0011] In some embodiments, a sliding sealing structure is connected between the inlet of the negative pressure foam pump pool and the foam collection pipe.

[0012] In some embodiments, a water replenishment port is provided on the negative pressure foam pump pool. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings.

[0014] in:

[0015] Figure 1It is a structural schematic diagram of a foam collecting device of a flotation device in an embodiment of the utility model;

[0016] Figure 2 for Figure 1 A top view of the foam adsorption tube in FIG.

[0017] Reference numerals:

[0018] 1-foam adsorption tube; 11-first pipe fitting; 12-second pipe fitting; 13-third pipe fitting; 2-foam collection pipe; 3-second delivery pump; 4-negative pressure foam pump pool; 5-first delivery pump; 6-water replenishment port. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0020] The foam collecting device of the flotation equipment according to the embodiment of the present utility model will be described below with reference to the accompanying drawings.

[0021] like Figure 1 , 2 As shown, an embodiment of the utility model proposes a foam collection device for flotation equipment, comprising: a foam adsorption tube 1, a negative pressure foam pump pool 4 and a foam collection tube 2, the foam adsorption tube 1 is horizontally arranged in the foam layer of the flotation cell body, and the foam adsorption tube 1 is provided with a plurality of adsorption holes to adsorb the foam in the foam layer; the negative pressure foam pump pool 4 has a closed cavity for collecting foam and an inlet and an outlet connected to the closed cavity, the outlet of the closed cavity is connected to a discharge pipe, and the discharge pipe is connected to a first delivery pump 5; one end of the foam collection tube 2 is connected to the foam adsorption tube 1, and the other end of the foam collection tube 2 extends from the inlet of the closed cavity into the closed cavity to deliver the foam adsorbed by the foam adsorption tube 1 to the negative pressure foam pump pool 4.

[0022] The embodiment of the utility model is provided with a foam adsorption tube 1, a negative pressure foam pump pool 4 and a foam collection tube 2. Through the negative pressure provided by the negative pressure foam pump pool 4, the foam adsorption tube 1 and the foam collection tube 2 are used to adsorb the foam in the flotation tank into the negative pressure foam pump pool 4, so as to realize the rapid recovery of flotation foam, effectively solve the problem that the mineralized foam of large flotation equipment is difficult to be discharged in time, improve the operation recovery rate of the flotation equipment, avoid the influence of the original flotation equipment's push cone, foam tube and other components on the internal pulp movement working condition of the flotation system, can quantify the flushing amount of flotation foam, and provide stable working conditions for subsequent flotation operation sections. The structure is simple, the implementation is convenient, and it can be applied to large-scale flotation equipment. The technology can be used to carry out on-site transformation of flotation equipment, and the operability is strong.

[0023] The foam collection device of the embodiment of the utility model can also recover the flotation foam with high viscosity in time, which can effectively avoid a series of problems caused by excessive foam viscosity, such as low recovery rate, large fluctuation of slurry concentration, unstable flow of slurry delivery pump and thus affecting the service life of the pump.

[0024] The embodiment of the utility model utilizes a delivery pump with adjustable power to increase the movement speed of flotation foam by changing the delivery power of the pump, thereby improving the operating efficiency of a single flotation device, reducing the circulating load inside the flotation system, reducing the amount of ore pulp processed in subsequent operations, saving energy and reducing consumption, and significantly improving production economic benefits.

[0025] When in use, the first delivery pump 5 is started, and under the action of negative pressure, the flotation foam is adsorbed by the foam adsorption tube 1 and then flows into the negative pressure foam pump pool 4 through the foam collection tube 2 .

[0026] Furthermore, the position of the foam adsorption tube 1 in the foam layer is determined according to the thickness of the foam layer, the upper part of the foam adsorption tube 1 should be immersed in the foam layer, and the lower part of the foam adsorption tube 1 should not contact the slurry. The foam adsorption tube 1 can be connected to the inner wall of the flotation tank by means of a bracket or welding.

[0027] Furthermore, the closed cavity of the negative pressure foam pump pool 4 has sufficient capacity to avoid abnormal working conditions such as flow interruption and gasping of the foam delivery pump during operation.

[0028] In some alternative embodiments, the foam adsorption tube 1 can be replaced by a foam adsorption tank, a foam diversion tube, or other equipment with negative pressure and drainage functions. The negative pressure foam pump pool 4 can be replaced by a closed tank, a negative pressure tank, a negative pressure tank, or other equipment with similar functions. The first delivery pump 5 can be replaced by a self-priming positive displacement pump, a slurry pump, a diaphragm pump, or other equipment that has the ability to deliver slurry and can provide sufficient negative pressure conditions.

[0029] In some embodiments, the foam adsorption tube 1 includes a first tube 11 and a second tube 12. The first tube 11 is connected to the second tube 12. The first tube 11 is annular and the second tube 12 is a straight tube. The second tube 12 is connected to the inner side of the first tube 11. The first tube 11 is connected to the foam collection tube 2.

[0030] Furthermore, there may be a plurality of second pipe members 12 , and the plurality of second pipe members 12 may be arranged in various ways, such as side-by-side arrangement, surrounding arrangement, cross arrangement, and the like.

[0031] Furthermore, six second pipe members 12 are provided.

[0032] Furthermore, the shape of the first pipe member 11 may be a circular ring, a rectangular ring, or other shapes, depending on the shape of the flotation cell and the arrangement of the second pipe member 12 .

[0033] Furthermore, the foam adsorption tube 1 may also be realized by devices with foam adsorption functions in other forms and shapes.

[0034] In some embodiments, a plurality of second pipe fittings 12 are provided and are evenly distributed around the inner side of the first pipe fitting 11. The second pipe fitting 12 has a first end and a second end. The first end of the second pipe fitting 12 points to the center direction of the first pipe fitting 11. The first end of the second pipe fitting 12 is closed. The first ends of all the second pipe fittings 12 form a space for passing the stirring shaft. The second end of the second pipe fitting 12 is connected to the first pipe fitting 11.

[0035] In some embodiments of the flotation cell, the foam adsorption tube 1 and the foam collection tube 2 are both made of corrosion-resistant metal.

[0036] Furthermore, the foam adsorption tube 1 and the foam collection tube 2 are both made of stainless steel.

[0037] In some alternative embodiments, the foam adsorption tube 1 and / or the foam collection tube 2 may also be made of non-metallic materials.

[0038] In some embodiments, a third pipe 13 is provided at the center of the first pipe 11, and the third pipe 13 is commonly connected to the first ends of all the second pipes 12. The third pipe 13 is annular, and the third pipe 13 is cocentric with the first pipe 11. The third pipe 13 can be provided to connect all the first pipes 11 to improve the overall stability of the foam adsorption tube 1, and can facilitate the passage of the stirring shaft to avoid collision between the stirring shaft and the first pipe 11.

[0039] Furthermore, the third pipe 13 may not be provided with adsorption holes, or adsorption holes may be provided on the third pipe 13 according to actual needs, so as to perform foam adsorption simultaneously with the first pipe 11 and the second pipe 12 to improve adsorption efficiency.

[0040] In some embodiments, the foam adsorption tube 1 is connected to the flotation cell through a lifting device to control the lifting of the foam adsorption tube 1 in the flotation cell.

[0041] Furthermore, the lifting device may be a hydraulic lifting device, including a cylinder and a telescopic rod, wherein the telescopic rod is connected to the foam adsorption tube 1 in a vertical direction to drive the foam adsorption tube 1 to move to a suitable height in a vertical direction.

[0042] Furthermore, a liquid level meter is provided in the flotation cell, and the lifting device is connected to a controller. The liquid level meter and the lifting device are electrically connected through the controller. The liquid level meter transmits the liquid level information of the flotation cell to the controller, and the controller issues instructions to the lifting device to drive the lifting device to move the foam adsorption tube 1 to a suitable height.

[0043] In some embodiments, a sliding sealing structure is connected between the inlet of the negative pressure foam pump pool 4 and the foam collecting tube 2. Since the foam collecting tube 2 will also move along with the foam adsorption tube 1 during the vertical movement, the foam collecting tube 2 needs to ensure a sealed connection with the inlet of the negative pressure foam pump pool 4 during the movement.

[0044] In some embodiments, a water supply port 6 is provided on the negative pressure foam pump pool 4. The foam in the negative pressure foam pump pool 4 is broken to form slurry, and the concentration of the slurry is determined according to the needs of subsequent operations to determine whether to add water for dilution.

[0045] Furthermore, a concentration meter and a liquid level meter may be provided in the negative pressure foam pump pool 4 to monitor the concentration and liquid level of the slurry in real time, so as to control the amount of water replenishment and adjust its concentration. A flow meter is connected to the water replenishment port 6, and the amount of water replenishment can be controlled according to the data of the concentration meter and the liquid level meter.

[0046] In some embodiments, the foam collection pipe 2 is connected to a second delivery pump 3 to enable the foam in the flotation cell to be adsorbed into the negative pressure foam pump pool 4.

[0047] When in use, first close the first delivery pump 5, start the second delivery pump 3, and deliver the foam in the flotation cell to the negative pressure foam pump pool 4. When the slurry in the negative pressure foam pump pool 4 has reached a certain liquid level, dilute the slurry to the required concentration, and then start the first delivery pump 5 to discharge the slurry in the negative pressure foam pump pool 4 to the next process.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0052] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0053] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A froth collecting device for a flotation device, characterized in that: include: A foam adsorption tube, which is horizontally arranged in the foam layer of the flotation tank, and has a plurality of adsorption holes to adsorb the foam in the foam layer; A negative pressure foam pump pool, the negative pressure foam pump pool having a closed cavity for collecting foam and an inlet and an outlet connected to the closed cavity, the outlet of the closed cavity is connected to a discharge pipe, and the discharge pipe is connected to a first delivery pump; A foam collecting tube, one end of which is connected to the foam adsorption tube, and the other end of which extends from the entrance of the closed cavity into the closed cavity to transport the foam adsorbed by the foam adsorption tube to the negative pressure foam pump pool.

2. The froth collecting device of the flotation equipment according to claim 1, characterized in that: The foam adsorption tube includes a first tube and a second tube, the first tube is connected to the second tube, the first tube is annular, the second tube is a straight tube, the second tube is connected to the inner side of the first tube, and the first tube is connected to the foam collection tube.

3. The froth collecting device of the flotation equipment according to claim 2, characterized in that: The second pipe fittings are provided in plurality and are evenly distributed around the inner side of the first pipe fitting. The second pipe fittings have a first end and a second end. The first end of the second pipe fitting points to the center of the first pipe fitting. The first end of the second pipe fitting is closed. The first ends of all the second pipe fittings form a space for passing the stirring shaft. The second end of the second pipe fitting is connected to the first pipe fitting.

4. The froth collecting device of the flotation equipment according to claim 1, characterized in that: The foam adsorption tube and the foam collection tube are both made of corrosion-resistant metal material.

5. The froth collecting device of the flotation equipment according to claim 3, characterized in that: A third pipe is provided at the center of the first pipe, and the third pipe is commonly connected to the first ends of all the second pipes. The third pipe is annular and has the same center as the first pipe.

6. The froth collecting device of the flotation equipment according to claim 1, characterized in that: The foam adsorption tube is connected to the flotation cell through a lifting device to control the lifting of the foam adsorption tube in the flotation cell.

7. The froth collecting device of the flotation equipment according to claim 1, characterized in that: A sliding sealing structure is connected between the inlet of the negative pressure foam pump pool and the foam collecting pipe.

8. The froth collecting device of the flotation equipment according to any one of claims 1 to 7, characterized in that: A water replenishment port is provided on the negative pressure foam pump pool.

Images