Efficient flotation defoaming nozzle

Abstract

The utility model discloses an efficient flotation defoaming nozzle which comprises a body provided with a through channel, the body is provided with an inlet and an outlet, and the channel section area of the outlet is larger than that of the inlet; the penetrating channel comprises a first section and a second section, the first section is cylindrical, and the second section is in a circular truncated cone shape. The outlet cross section of the nozzle is designed to be larger than the inlet cross section, compared with an existing nozzle, an opposite design mode is adopted, the flow speed of outlet ore pulp is reduced, the pressure of the outlet ore pulp is increased, and the purpose of avoiding turbulent flow is achieved in a pressurizing and speed reducing mode on the premise that pressure supply is not changed. The flotation tank can scrape foam step by step, and the flotation efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of mineral processing technology, specifically, it relates to a high-efficiency flotation defoaming nozzle. Background Technology

[0002] Foam flotation is a widely used separation technology in mineral processing, primarily used to separate valuable minerals from gangue in ores. Its core principle is based on the difference in hydrophobicity of mineral particle surfaces: hydrophobic minerals readily adhere to air bubbles and float to the surface of the slurry, while hydrophilic minerals remain in the water. The basic process involves grinding, slurry preparation, addition of reagents, aeration and stirring, froth collection, scraping off the surface ore-bearing froth, dewatering to obtain concentrate, and the hydrophilic minerals settling at the bottom as tailings.

[0003] After being aerated, the slurry is conveyed to the flotation machine. In the flotation cells, the froth is skimmed off, and flotation proceeds gradually and continuously. The aerated slurry contains a large amount of froth. To ensure sufficient slurry delivery, the current method is to increase the flow rate to reduce the impact of air bubbles on the flow rate. However, with the pump pressure remaining constant, increasing the flow rate reduces the liquid pressure around the pipe outlet, leading to turbulence around the outlet. This affects the gradual skimming of froth from the slurry in the flotation cells, thus impacting flotation efficiency. Therefore, we have designed a novel pressurized slurry delivery nozzle to address these shortcomings. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a high-efficiency flotation defoaming nozzle. The basic concept of the technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows:

[0005] A high-efficiency flotation defoaming nozzle includes a body with a through channel, the body having an inlet and an outlet, the cross-sectional area of ​​the outlet channel being larger than that of the inlet channel.

[0006] Furthermore, the through channel includes a first section and a second section, the first section being cylindrical and the second section being frustum-shaped.

[0007] Furthermore, the through channel includes a first section and a second section, the first section being cylindrical and the second section being flattened trumpet-shaped.

[0008] Furthermore, the body is made of polyurethane material.

[0009] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.

[0010] This invention designs the nozzle's outlet cross-section to be larger than its inlet cross-section. Compared with existing nozzles, this design increases the outlet slurry pressure, thereby avoiding turbulence and facilitating the rapid discharge of flotation cell foam, thus improving the smoothness of the flotation process. In addition, this nozzle adopts a wear-resistant design, which increases the slurry flow rate while reducing wear on the conveying pipeline.

[0011] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0012] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0013] Figure 1 This is a structural cross-sectional view of Embodiment 1 of this utility model;

[0014] Figure 2 This is a right view of Embodiment 1 of this utility model;

[0015] Figure 3 This is a right view of Embodiment 2 of this utility model;

[0016] Figure 4 This is a cross-sectional view of the existing nozzle structure.

[0017] In the diagram: 1-body; 2-connecting flange; 3-inlet; 4-outlet; a-first section; b-second section.

[0018] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0022] like Figure 1-2 As shown in the figure, the high-efficiency flotation defoaming nozzle described in this embodiment includes a body 1, which is connected to a pipeline via a connecting flange 2. The body 1 has a through channel, a slurry inlet 3 at the left end of the body 1, and a slurry outlet 4 at the right end. The through channel connects the inlet 3 and the outlet 4. The cross-sectional area of ​​the channel at the outlet 4 is larger than that at the inlet 3. See attached figure. Figure 2 The diagram illustrates that the through channel includes a first section a and a second section b. The first section a is cylindrical, and the second section b is frustum-shaped. The frustum-shaped channel can expand the area of ​​outlet 4. When the slurry supply pump pressure remains constant, the increased cross-sectional area of ​​nozzle outlet 4 will reduce the slurry flow rate and increase the liquid pressure. This increases the slurry pressure and reduces the flow rate at outlet 4, avoiding turbulence with the liquid in the flotation cell and facilitating the gradual skimming of foam in the flotation cell.

[0023] Appendix Figure 4 The nozzle used in existing technology has an outlet cross-sectional area smaller than the inlet cross-sectional area, increasing the slurry flow rate. In contrast, this embodiment uses the opposite method to increase the slurry pressure at outlet 4. While both methods utilize Bernoulli's principle, the design is completely opposite. This pressure-increasing and velocity-reducing approach avoids turbulence, facilitating rapid froth removal from the flotation cell and improving the smoothness of the flotation process. Preferably, the nozzle body can be made of polyurethane, which has excellent wear resistance, reducing wear on the conveying pipeline and extending the nozzle's service life. Example

[0024] like Figure 1 , Figure 3As shown, the difference between this embodiment and the first embodiment described above is that the through channel includes a first segment a and a second segment b. The first segment a is cylindrical, and the second segment b is flattened and flared. (See attached diagram.) Figure 3 As shown, the second section b is flat. The inlet of the second section b has a smaller cross-sectional area than that of the first section a, which has the effect of increasing the flow rate. The inlet of the second section b is small and the outlet is large, which also has the effect of increasing pressure. Combined with the premise of the main body 1: the area of ​​outlet 4 is larger than the area of ​​inlet 3, the use of this flat funnel-shaped mouth can not only avoid the occurrence of existing turbulence, but also make the slurry at outlet 4 form a laminar flow effect, which is more conducive to the gradual scraping of foam in the flotation cell.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A high-efficiency flotation defoaming nozzle, characterized in that, It includes a body (1) with a through channel, the body (1) having an inlet (3) and an outlet (4), the cross-sectional area of ​​the outlet (4) being larger than the cross-sectional area of ​​the inlet (3).

2. The high-efficiency flotation defoaming nozzle according to claim 1, characterized in that: The through channel includes a first section (a) and a second section (b), the first section (a) being cylindrical and the second section (b) being frustum-shaped.

3. The high-efficiency flotation defoaming nozzle according to claim 1, characterized in that: The through channel includes a first section (a) and a second section (b). The first section (a) is cylindrical and the second section (b) is flat and funnel-shaped.

4. The high-efficiency flotation defoaming nozzle according to claim 1, characterized in that: The body (1) is made of polyurethane material.

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