Defoaming device

Abstract

The utility model provides a defoaming device which comprises a middle tank, a stirring mechanism and a jet device, the middle tank comprises a middle tank body and a middle tank inlet bin, the middle tank inlet bin is communicated with a cavity of the middle tank body, the middle tank inlet bin is used for inputting ore pulp, and at least one part of the stirring mechanism is located in the cavity of the middle tank body. The stirring mechanism is used for stirring ore pulp in the cavity of the middle tank body, at least one part of the jet device is located in the cavity of the middle tank body, and the jet device is used for spraying water into the cavity of the middle tank body so as to eliminate foam on the surface of the ore pulp in the cavity of the middle tank body. According to the scheme, through cooperative work of the stirring mechanism and the jet device, the jet device sprays water to ore pulp for defoaming while the stirring mechanism stirs the ore pulp, foam on the surface of the ore pulp can be rapidly and effectively eliminated, and the clean coal and tailing separation efficiency is improved. The device can also adapt to different ore pulp types and concentrations, and the universality of the device is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal floatation technical field, specifically, relate to a defoaming device. BACKGROUND

[0002] Coal needs to be floated after being mined, and clean coal and tail coal are separated, and in this process, coal needs to be floated continuously through multiple stages. However, in the prior art, the clean coal flotation foam after flotation still floats on the liquid surface, and due to the need to add a foaming agent in the flotation process, natural foaming will occur in the secondary ore slurry preparation process, which makes it difficult to mix the clean coal in the secondary ore slurry, thereby affecting the multi-stage separation effect. SUMMARY

[0003] The utility model provides a defoaming device to at least solve the problem of flotation foam floating in the prior art and affecting the separation effect.

[0004] In order to solve the above problems, the utility model provides a defoaming device, which comprises an intermediate tank, a stirring mechanism and a jet device, the intermediate tank comprises an intermediate tank body and an intermediate tank inlet bin, the cavity of the intermediate tank inlet bin and the intermediate tank body is communicated, the intermediate tank inlet bin is used for inputting ore slurry, at least a part of the stirring mechanism is located in the cavity of the intermediate tank body, the stirring mechanism is used for stirring the ore slurry in the cavity of the intermediate tank body, at least a part of the jet device is located in the cavity of the intermediate tank body, and the jet device is used for spraying water into the cavity of the intermediate tank body to eliminate the foam on the surface of the ore slurry in the cavity of the intermediate tank body.

[0005] Further, the inner wall of the intermediate tank inlet bin is provided with a defoaming structure, and the defoaming structure is used for eliminating the foam on the surface of the ore slurry input into the intermediate tank inlet bin.

[0006] Further, the defoaming structure comprises multiple rows of sawtooth-shaped or square protrusions arranged at intervals, and a flow guide groove is formed between adjacent two rows of protrusions.

[0007] Further, the defoaming structure comprises an isolation net.

[0008] Further, the jet device is multiple, and at least one jet device is arranged at the top of the intermediate tank body and has a spraying direction towards the intermediate tank inlet bin.

[0009] Further, the intermediate tank further comprises an intermediate tank ore slurry outlet, the cavity of the intermediate tank ore slurry outlet and the intermediate tank body is communicated; the jet device is multiple, and at least one jet device is arranged at the top of the intermediate tank body and located between the intermediate tank ore slurry outlet and the stirring mechanism.

[0010] Further, the jet device comprises multiple spray heads, and the multiple spray heads are distributed along the radial direction of the intermediate tank body, and the spraying direction of each spray head is adjustable.

[0011] Further, the intermediate tank body is a barrel type, and the rotation axis of the stirring mechanism coincides with the axis of the intermediate tank body.

[0012] Further, the intermediate tank body is a cuboid type, and the stirring mechanism is multiple, the multiple stirring mechanisms are arranged side by side along the length direction of the intermediate tank body, one jet device is arranged corresponding to each stirring mechanism, and the jet direction of the jet device is from top to bottom towards the lower part of the corresponding stirring mechanism.

[0013] Further, the stirring mechanism comprises a driving motor, a stirring shaft and multiple stirring blades, the driving motor is fixed to the top of the intermediate tank body and connected with the upper end of the stirring shaft, the stirring shaft extends into the cavity of the intermediate tank body, and the multiple stirring blades are arranged on the stirring shaft.

[0014] The technical scheme of the present application provides a defoaming device, which comprises an intermediate tank, a stirring mechanism and a jet device, the intermediate tank comprises an intermediate tank body and an intermediate tank inlet bin, the cavity of the intermediate tank body is communicated with the intermediate tank inlet bin, the intermediate tank inlet bin is used for inputting ore pulp, at least a part of the stirring mechanism is located in the cavity of the intermediate tank body, the stirring mechanism is used for stirring the ore pulp in the cavity of the intermediate tank body, at least a part of the jet device is located in the cavity of the intermediate tank body, and the jet device is used for spraying water into the cavity of the intermediate tank body to eliminate the foam on the surface of the ore pulp in the cavity of the intermediate tank body.

[0015] In the scheme, the concentrate foam after flotation is washed by water flow to the intermediate tank inlet bin, is input into the intermediate tank body through the intermediate tank inlet bin, and is defoamed by the water spraying of the jet device while being stirred by the stirring mechanism, so that the foam on the surface of the ore pulp can be quickly and effectively eliminated, and the separation efficiency of clean coal and tail coal is improved. The stirring mechanism and the jet device are integrated in the intermediate tank body, so that the space can be saved, the operation process is simplified, and the operation is facilitated. Moreover, the elimination of the foam on the surface of the ore pulp can reduce the overflow and splashing of the ore pulp caused by excessive foam, avoid the waste of the ore pulp, and also reduce the air content in the ore pulp, which is helpful to improve the flotation effect. Moreover, the defoaming device in the scheme can adapt to different types and concentrations of ore pulp, and the universality of the device is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the present application, and together with the specification explain the present application. The use of the same reference numbers in different drawings is intended to denote the same or similar elements.

[0017] Figure 1 Fig. 1 shows the structure schematic diagram of the defoaming device provided by the embodiment of the present application;

[0018] Figure 2The embodiment of the utility model provides a top view of the defoaming device.

[0019] Among them, the above-mentioned drawing includes the following figure mark:

[0020] 10, stirring mechanism; 11, stirring shaft; 12, stirring blade; 20, jet device; 30, intermediate tank tank body; 40, intermediate tank inlet bin; 50, defoaming structure; 60, intermediate tank ore pulp outlet. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all. The following description of at least one exemplary embodiment is actually only illustrative, not as any limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] As Figures 1 to 2 The embodiment of the utility model provides a kind of defoaming device, including intermediate tank, stirring mechanism 10 and jet device 20, intermediate tank includes intermediate tank tank body 30 and intermediate tank inlet bin 40, the cavity of intermediate tank inlet bin 40 and intermediate tank tank body 30 is communicated, intermediate tank inlet bin 40 is used to input ore pulp, at least a portion of stirring mechanism 10 is located in the cavity of intermediate tank tank body 30, stirring mechanism 10 is used to stir the ore pulp in the cavity of intermediate tank tank body 30, at least a portion of jet device 20 is located in the cavity of intermediate tank tank body 30, jet device 20 is used to spray water in the cavity of intermediate tank tank body 30, to eliminate the foam on the surface of ore pulp in the cavity of intermediate tank tank body 30.

[0023] In the embodiment, the concentrate foam after flotation is washed by water flow to intermediate tank inlet bin 40, is input into intermediate tank tank body 30 by intermediate tank inlet bin 40, by the cooperation of stirring mechanism 10 and jet device 20, while stirring by stirring mechanism 10, jet device 20 is watered to the ore pulp and defoams, can quickly and effectively eliminate the foam on the surface of ore pulp, improve the efficiency of clean coal and tail coal separation. The integration of stirring mechanism 10 and jet device 20 in intermediate tank tank body 30 can save space, simplify the operation process, and be easy to operate. And eliminating the foam on the surface of ore pulp can reduce the overflow and spatter of ore pulp caused by excessive foam, avoid the waste of ore pulp, also can reduce the air content in ore pulp, help to improve the flotation effect. And the defoaming device in the present scheme can adapt to different ore pulp types and concentrations, enhance the versatility of the device.

[0024] As Figure 1As shown, the inner wall of the intermediate tank inlet chamber 40 is provided with a defoaming structure 50, which is used to eliminate foam on the surface of the slurry entering the intermediate tank inlet chamber 40.

[0025] In this embodiment, by eliminating foam through the defoaming structure 50 before the slurry enters the intermediate tank 30, foam can be eliminated before it accumulates to a large amount, reducing the total amount of foam in the intermediate tank 30. This reduces the difficulty and complexity of subsequent processing and improves the overall efficiency of the defoaming device. The defoaming structure 50 also reduces the risk of foam overflowing from the intermediate tank inlet chamber 40, avoiding waste caused by foam overflow. Furthermore, since the defoaming structure 50 reduces foam generation, the energy consumption required for the stirring mechanism 10 and the jetting device 20 to eliminate foam can be reduced.

[0026] Furthermore, the defoaming structure 50 includes multiple rows of spaced-apart serrated or square protrusions, with guide grooves between adjacent rows of protrusions.

[0027] In this embodiment, the spaced serrated or square protrusions directly break up the foam on the slurry surface through physical means, reducing reliance on chemical defoamers, lowering costs and environmental impact, and reducing foam formation and accumulation. The guide channel helps improve slurry flowability and reduces the possibility of clogging. Furthermore, the serrated or square protrusions increase the contact area between the slurry and the defoaming structure 50; as the slurry flows through, the foam on the slurry surface contacts the protrusions, helping to break up the foam more effectively. In this design, the serrated and square protrusions can be flexibly designed according to the characteristics of the slurry and the foam formation situation to adapt to different processing needs.

[0028] In other embodiments, the defoaming structure 50 also includes an isolation net that can directly block foam on the surface of the slurry, preventing further accumulation and diffusion of foam, thereby reducing the impact of foam on subsequent processes. Furthermore, the isolation net is simple in design, easy to install and operate, improving the convenience of slurry treatment.

[0029] like Figure 1 As shown, there are multiple jet devices 20, with at least one jet device 20 disposed on the top of the intermediate tank 30 and the jetting direction facing the intermediate tank inlet chamber 40.

[0030] In the embodiment, at least one jet device 20 is located at the top of the intermediate tank tank body 30, and the jet direction is towards the intermediate tank inlet bin 40, directly spraying high-speed water flow to the surface of the ore pulp, which can quickly break the foam, and can eliminate the foam before the ore pulp enters the intermediate tank tank body 30, preventing the foam from entering the inside of the tank body. Multiple jet devices 20 can be set to work simultaneously to improve the efficiency and speed of defoaming and reduce the foam treatment time. Moreover, the number and position of the jet devices 20 can be adjusted according to different ore pulp characteristics and foam formation conditions, which has strong adaptability and flexibility.

[0031] As shown in Figure 1 , the intermediate tank also includes an intermediate tank ore pulp outlet 60, which is in communication with the cavity of the intermediate tank tank body 30; the jet device 20 is multiple, and at least one jet device 20 is arranged at the top of the intermediate tank tank body 30 and located between the intermediate tank ore pulp outlet 60 and the stirring mechanism 10.

[0032] In the embodiment, at least one jet device 20 is located between the intermediate tank ore pulp outlet 60 and the stirring mechanism 10, which helps to gradually eliminate the foam generated by the natural foaming of the ore pulp during the stirring process of the ore pulp, ensures that the foam is eliminated to the greatest extent before the ore pulp flows out of the intermediate tank, and also can inhibit the foam from being discharged from the intermediate tank ore pulp outlet 60 too early. Moreover, the intermediate tank ore pulp outlet 60 is connected with the next intermediate tank or the next stage of the flotation tank, and the ore pulp can enter the next intermediate tank or the next stage of the flotation tank from the intermediate tank ore pulp outlet 60.

[0033] Optionally, the position of the jet device 20 can be flexibly adjusted according to the characteristics of the ore pulp and the situation of the foam generation to adapt to different working conditions. When the stirring mechanism 10 is stirring different ore pulps, the generated foam may be gathered in different positions. By adjusting the position of the jet device 20, the generated foam can be targetedly eliminated, which improves the applicability and versatility of the defoaming device.

[0034] Further, the jet device 20 includes multiple nozzles, and the multiple nozzles are distributed along the radial direction of the intermediate tank tank body 30, and the jet direction of each nozzle is adjustable.

[0035] In the embodiment, the jet device 20 includes multiple nozzles, and the radial distribution of the nozzles along the intermediate tank tank body 30 can ensure that the ore pulp in the entire intermediate tank tank body 30 can be sprayed, achieving a more uniform defoaming effect. The adjustability of the jet direction of each nozzle enables the operator to adjust the jet direction according to the specific situation of the foam to achieve the best defoaming effect, which enhances the applicability of the device, and the nozzle can also be adjusted to process the foam in a specific area more concentratedly, improving the defoaming efficiency.

[0036] Specifically, the intermediate tank body 30 is in a barrel type, and the rotation axis of the stirring mechanism 10 coincides with the axis of the intermediate tank body 30.

[0037] In this embodiment, the barrel type intermediate tank body 30 matches the axis coinciding stirring mechanism 10 can ensure more uniform stirring, reduce dead angles, ensure that the ingredients in the ore pulp are fully mixed, improve the efficiency and effect of ore pulp mixing, and also reduce wear and tear during stirring, prolong the service life of the stirring mechanism 10, and reduce the frequency of maintenance and replacement. Uniform stirring helps to better destroy and disperse the foam, and the jet device 20 can more effectively eliminate the foam. Moreover, the barrel type intermediate tank body 30 helps the flow of the ore pulp, reduces residue, and facilitates subsequent cleaning and maintenance.

[0038] Alternatively, in another embodiment not shown in the present scheme, the intermediate tank body 30 is in a cuboid type, and the stirring mechanism 10 is multiple, the multiple stirring mechanisms 10 are arranged side by side along the length direction of the intermediate tank body 30, and each stirring mechanism 10 is correspondingly provided with a jet device 20, and the jet direction of the jet device 20 is from top to bottom towards the lower part of the corresponding stirring mechanism 10.

[0039] The intermediate tank body 30 is in a cuboid type, and the cuboid type intermediate tank body 30 matches the stirring mechanism 10 arranged side by side along the length direction, which can achieve uniform stirring and defoaming in the entire length direction of the intermediate tank body 30, improving the defoaming efficiency. Multiple stirring mechanisms 10 are provided, and each stirring mechanism 10 corresponds to a jet device 20, which can more concentratedly process the foam in a specific area, improving the defoaming efficiency. Moreover, the jet direction of the jet device 20 is from top to bottom and towards the lower part of the stirring mechanism 10, which can directly impact the foam and reduce the accumulation of foam near the stirring mechanism 10.

[0040] Further, the stirring mechanism 10 includes a driving motor, a stirring shaft 11 and multiple stirring blades 12, the driving motor is fixed to the top of the intermediate tank body 30 and connected with the upper end of the stirring shaft 11, the stirring shaft 11 extends into the cavity of the intermediate tank body 30, and the multiple stirring blades 12 are arranged on the stirring shaft 11.

[0041] In this embodiment, the stirring shaft 11 is directly connected and driven by the driving motor, which can provide stable and efficient power and ensure that the stirring blades 12 can produce sufficient stirring effect. Fixing the driving motor on the top of the intermediate tank body 30 can make the structure of the entire stirring mechanism 10 more compact, save space, and facilitate the overall layout and installation of the defoaming device. The stirring blades 12 are distributed along the stirring shaft 11, which can produce uniform stirring effect inside the entire intermediate tank body 30 and reduce stirring dead angles.

[0042] Optionally, the design of the stirring mechanism 10 can be adjusted according to the properties of different ore slurries, such as changing the number, size, shape or material of the plurality of stirring blades 12, to adapt to different stirring and mixing requirements and different ore slurry characteristics.

[0043] The defoaming device in the present scheme has a simple overall design structure and is convenient to operate, and can improve the foam elimination effect in the ore slurry processing process, thereby improving the beneficiation efficiency and reducing energy consumption. Through the combination of the physical structure and the jet device 20, different types of ore slurry processing requirements can be met, whether it is high concentration, large flow or special component ore slurry, the foam can be effectively eliminated to ensure the smooth progress of the ore slurry processing process. In addition, the spray direction of the nozzle of the jet device 20 is adjustable, which can adjust the water spray angle according to actual needs, improve the defoaming effect, and at the same time reduce water waste. The stirring mechanism 10 can accelerate the circulation of the ore slurry, so that the foam cannot exist stably, thereby realizing efficient defoaming and improving the efficiency of the subsequent processing process.

[0044] The above only describes optional embodiments of the present scheme and is not intended to limit the present scheme. For those skilled in the art, the present scheme can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present scheme shall be included in the protection scope of the present scheme.

[0045] It should be noted that the terms used herein are only intended to describe specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a reference to the presence of a feature, step, operation, device, component, and / or combinations thereof.

[0046] Unless specifically stated otherwise, the relative arrangement of components and steps, numerical expressions, and numerical values set forth in the examples contained herein are not limiting of the scope of the present scheme. It should also be understood that the dimensions of the various parts shown in the drawings are not necessarily to scale. Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the specification, where appropriate. In all examples shown and discussed herein, any specific value should be interpreted as merely an example, and not as a limitation. Thus, other examples of the exemplary embodiments can have different values. It should be noted that like reference numerals and letters in the following drawings represent similar items, and therefore, once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

[0047] In the description of the present solution, it needs to be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship is generally based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present solution and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the device or element indicated must have a particular orientation or be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the scope of protection of the present solution; the orientation words "inner, outer" refer to the inner and outer relative to the contour of each component itself.

[0048] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawings is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0049] In addition, it needs to be pointed out that the use of "first", "second" and the like to define parts only for the convenience of distinguishing the corresponding parts, and if there is no further declaration, the above words have no special meaning, therefore cannot be understood as a limitation on the scope of protection of the present solution.

Claims

1. A defoaming device, characterized in that The intermediate tank includes an intermediate tank body (30) and an intermediate tank inlet bin (40) in communication with the cavity of the intermediate tank body (30), the intermediate tank inlet bin (40) is used for inputting ore pulp, at least a part of the stirring mechanism (10) is located in the cavity of the intermediate tank body (30), the stirring mechanism (10) is used for stirring the ore pulp in the cavity of the intermediate tank body (30), and at least a part of the jet device (20) is located in the cavity of the intermediate tank body (30), the jet device (20) is used for spraying water into the cavity of the intermediate tank body (30) to eliminate the foam on the surface of the ore pulp in the cavity of the intermediate tank body (30).

2. The device according to claim 1, characterized in that The inner wall of the intermediate tank inlet bin (40) is provided with a defoaming structure (50) used for eliminating the foam on the surface of the ore pulp input into the intermediate tank inlet bin (40).

3. The defoaming device of claim 2, wherein The defoaming structure (50) includes multiple rows of spaced sawtooth or square protrusions, and adjacent two rows of the protrusions have flow guide grooves.

4. The defoaming device of claim 2, wherein The defoaming structure (50) includes a separation net.

5. The device of claim 1, wherein The jet device (20) is multiple, at least one of the jet devices (20) is arranged at the top of the intermediate tank body (30) and has a spraying direction towards the intermediate tank inlet bin (40).

6. The device of claim 1, wherein The intermediate tank further includes an intermediate tank ore pulp outlet (60) in communication with the cavity of the intermediate tank body (30), and the jet device (20) is multiple, at least one of the jet devices (20) is arranged at the top of the intermediate tank body (30) and located between the intermediate tank ore pulp outlet (60) and the stirring mechanism (10).

7. The device of claim 1, wherein The jet device (20) includes multiple spray heads, multiple spray heads are distributed along the radial direction of the intermediate tank body (30), and the spraying direction of each spray head is adjustable.

8. The device of claim 1, wherein, The intermediate tank body (30) is in a barrel type, and the rotation axis of the stirring mechanism (10) coincides with the axis of the intermediate tank body (30).

9. The device of claim 1, wherein, The intermediate tank body (30) is in a cuboid type, the stirring mechanism (10) is multiple, multiple stirring mechanisms (10) are arranged side by side along the length direction of the intermediate tank body (30), each stirring mechanism (10) is correspondingly provided with one jet device (20), and the spraying direction of the jet device (20) is from top to bottom towards the lower part of the corresponding stirring mechanism (10).

10. The device of claim 1, wherein The stirring mechanism (10) includes a driving motor, a stirring shaft (11) and multiple stirring blades (12), the driving motor is fixed to the top of the intermediate tank body (30) and connected with the upper end of the stirring shaft (11), the stirring shaft (11) extends into the cavity of the intermediate tank body (30), and multiple stirring blades (12) are arranged on the stirring shaft (11).

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