Self-pressurization defoaming device

Abstract

The utility model discloses a self-pressurization defoaming device, which belongs to the technical field of auxiliary equipment for mineral flotation, and comprises a nozzle for injecting pressurization defoaming water, the nozzle comprises a water injection chamber, a first pressurization chamber, a conical chamber and a diffusion chamber which are sequentially and coaxially arranged and communicate with one another. The conical cavity is in a truncated cone shape, and the end, with the large bottom face area, of the conical cavity communicates with the columnar first pressurization cavity. The diameter of the end face, communicated with the first pressurizing chamber, of the conical chamber is larger than that of the first pressurizing chamber, and the diameter of the end face, communicated with the diffusion chamber, of the conical chamber is smaller than that of the first pressurizing chamber. The device is simple in overall structure and convenient to operate and use, and has a good defoaming effect on traditional and unbreakable foams.

Description

Technical Field

[0001] The utility model belongs to the technical field of auxiliary equipment for flotation of minerals, and more specifically relates to a self-pressurizing defoaming device. Background Art

[0002] In the process of froth flotation of minerals, due to the addition of a large amount of mineral processing reagents, the flotation operation often encounters the phenomenon of excessive foam in the concentrate and the foam is not easy to break. Some foam even overflows from the trough, seriously affecting the continuous stability of on-site production.

[0003] When there are a lot of bubbles that are not easy to break, the existing technology usually solves the problem by increasing the amount of defoaming water sprayed or increasing the spray pressure of the defoaming water. However, it is found in production practice that even if the amount of defoaming water sprayed is increased, the defoaming effect is general. As for the scheme of increasing the pressure of spraying defoaming water, for example, a "Defoaming Water Spray Gun" with publication number CN205023876U, although this technical scheme can quickly eliminate suspended bubbles accumulated on the water surface. However, the overall structure of this technical scheme is complex, involving multiple regulating valves, and is inconvenient to operate and use. Utility Model Content

[0004] In order to overcome the problems existing in the background technology, the utility model patent provides a self-pressurized defoaming device with a simple overall structure, easy operation and use, and a good defoaming effect on traditional foams that are not easy to break.

[0005] In order to achieve the above purpose, the utility model is implemented by the following technical solutions:

[0006] A self-pressurized defoaming device comprises a nozzle for injecting pressurized defoaming water; the nozzle comprises a water injection chamber, a first pressurized chamber, a conical chamber and a diffusion chamber which are coaxially arranged and connected in sequence; the conical chamber is in a truncated cone shape and one end with a larger bottom surface area is connected to the first columnar pressurized chamber; the diameter of the end surface of the conical chamber connected to the first pressurized chamber is larger than the diameter of the first pressurized chamber, and the diameter of the end surface of the conical chamber connected to the diffusion chamber is smaller than the diameter of the first pressurized chamber; the volume of the conical chamber is smaller than the volume of the first pressurized chamber.

[0007] Furthermore, the diffusion chamber is in a flat duckbill shape as a whole, and the end surface thereof communicating with the conical chamber is in a circular opening shape, and the other end is in a rectangular opening shape.

[0008] Furthermore, the volume of the first pressurized chamber is 1 / 3-1 / 2 of the volume of the water injection chamber.

[0009] Furthermore, the inner surface or the outer surface of the water injection chamber is provided with a threaded connection portion for threaded connection.

[0010] Furthermore, the water injection chamber is also columnar and its diameter is greater than the diameter of the first pressurizing chamber.

[0011] Beneficial effects of the utility model:

[0012] (1) During operation, defoaming water with a certain pressure enters the water injection chamber in the nozzle. In the process of entering the first pressurizing chamber from the water injection chamber, the defoaming water is initially pressurized by changing the diameter. In the process of entering the conical chamber from the first pressurizing chamber, the initial pressurized defoaming water does not have a smooth transition with the conical chamber because the diameter of the beginning of the conical chamber is larger than the diameter of the first pressurizing chamber. The beginning of the conical chamber is enlarged, which increases the cone angle of the conical chamber. At the same time, when the volume of the conical chamber is smaller than the volume of the first pressurizing chamber, a better compression effect can be achieved. In this way, under the same water pressure, after the defoaming water is pressurized by the above-mentioned nozzle, the sprayed defoaming water has a better defoaming effect on traditional foams that are more and less fragile.

[0013] (2) The utility model has a simple structure and is easy to operate. When in use, the nozzle is directly connected to the water outlet end of the pressurized defoaming water supply pipe, and the pressurized defoaming water is finally sprayed out through the nozzle to defoam the foam. At the same time, after the nozzle is installed, no subsequent maintenance is required, which greatly facilitates the entire defoaming operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] In the figure, 1-nozzle, 10-water injection chamber, 11-first pressurized chamber, 12-conical chamber, 13-diffusion chamber. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to facilitate understanding by technicians.

[0017] like Figure 1As shown, a self-pressurized defoaming device comprises a nozzle 1 for injecting pressurized defoaming water; the nozzle 1 comprises a water injection chamber 10, a first pressurizing chamber 11, a conical chamber 12 and a diffusion chamber 13 which are coaxially arranged and connected in sequence; the water injection chamber 10 and the first pressurizing chamber 11 are both columnar and the diameter of the first pressurizing chamber 11 is smaller than the diameter of the water injection chamber 10; the conical chamber 12 is truncated cone-shaped and the end with a larger bottom area is connected to the first pressurizing chamber 11; the end face diameter of the conical chamber 12 connected to the first pressurizing chamber 11 is larger than the diameter of the first pressurizing chamber 11; the diffusion chamber 13 gradually widens from the end connected to the conical chamber 12; the volume of the conical chamber 12 is smaller than the volume of the first pressurizing chamber 11.

[0018] In the utility model, the starting end of the water injection chamber 10 is directly used to connect with the water outlet end of the pressurized defoaming water supply pipe and provide a space for accommodating defoaming water; in the process of the defoaming water with a certain pressure entering the first pressurizing chamber 11 from the water injection chamber 10, due to the reduction in diameter, the defoaming water is initially pressurized in the first pressurizing chamber 11; further, in order to have a better pressurization effect, it is better that the volume of the first pressurizing chamber 11 is 1 / 3-1 / 2 of the volume of the water injection chamber 10.

[0019] In the process of the defoaming water entering the conical chamber 12 from the first pressurizing chamber 11 after the initial pressurization, the defoaming water is also pressurized for the second time due to the change in diameter; in particular, in the secondary pressurization process, since the starting diameter of the conical chamber 12 is larger than the diameter of the first pressurizing chamber 11, there is no smooth transition between the first pressurizing chamber 11 and the conical chamber 12. In this way, when the volume of the conical chamber 12 is smaller than the volume of the first pressurizing chamber 11, the starting end of the conical chamber 12 is expanded to increase the cone angle of the conical chamber 12 designed in a truncated cone shape, thereby achieving a better compression effect.

[0020] Specifically, a threaded connection portion for threaded connection can be provided on the inner surface or the outer surface of the water injection chamber 10, so that the nozzle 1 can be conveniently and detachably connected to the pressurized defoaming water delivery pipe for delivering pressurized defoaming water. Of course, in addition to the threaded connection, the corresponding connection can also be achieved by welding.

[0021] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the utility model. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the protection scope of the utility model.

Claims

1. A self-pressurizing defoaming device, comprising a nozzle (1) for injecting pressurized defoaming water; characterized in that: The nozzle (1) comprises a water injection chamber (10), a first pressurizing chamber (11), a conical chamber (12) and a diffusion chamber (13) which are coaxially arranged and connected in sequence; the conical chamber (12) is in the shape of a truncated cone and one end with a larger bottom surface area is connected to the first pressurizing chamber (11) which is in the shape of a column; the diameter of the end surface of the conical chamber (12) connecting to the first pressurizing chamber (11) is larger than the diameter of the first pressurizing chamber (11), and the diameter of the end surface of the conical chamber (12) connecting to the diffusion chamber (13) is smaller than the diameter of the first pressurizing chamber (11); the volume of the conical chamber (12) is smaller than the volume of the first pressurizing chamber (11).

2. A self-pressurized defoaming device according to claim 1, characterized in that: The diffusion chamber (13) is in the shape of a flat duckbill as a whole, and its end surface communicating with the conical chamber (12) is in the shape of a circular opening, while the other end is in the shape of a rectangular opening.

3. A self-pressurized defoaming device according to claim 1, characterized in that: The volume of the first pressurized chamber (11) is 1 / 3 to 1 / 2 of the volume of the water injection chamber (10).

4. A self-pressurizing defoaming device according to claim 1, characterized in that: The inner surface or the outer surface of the water injection chamber (10) is provided with a threaded connection portion for threaded connection.

5. The self-pressurizing defoaming device according to claim 1, characterized in that: The water injection chamber (10) is also columnar and has a diameter greater than the diameter of the first pressurizing chamber (11).

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