Subsurface flow type flow guide device

Abstract

The utility model discloses an underflow type flow guide device, which relates to the technical field of aluminum electrolysis casting and comprises an underflow pipe and a buoy. The underflow pipe is provided with a vertically-through circulation channel. The density of the buoy is lower than that of liquid injected into the flowing channel; the buoy is provided with a hollow cavity, and an upper opening and at least one side opening which are communicated with the hollow cavity; the lower end of the underflow tube is arranged in the upper opening in a penetrating manner and extends into the hollow cavity; and a flowing gap is formed between the lower end of the underflow pipe and the inner bottom of the hollow cavity. And the rolling force caused by large fall is reduced, and the splashing phenomenon is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum electrolytic casting, in particular to a submerged flow guiding device. Background Art

[0002] The premise of furnace production is to inject molten aluminum into the mold for shaping. During the casting process, a chute is needed to inject the molten aluminum into the mold to meet the production process requirements. In the current process, the molten aluminum is directly flushed into the chute through a guide pipe, but this method has the following disadvantages:

[0003] 1. The large drop of the straight-in type draft pipe causes the aluminum liquid to roll, causing the furnace edge to roll, accelerating the oxidation of the aluminum liquid to form aluminum slag, and increasing the slag production;

[0004] 2. The straight-flow guide pipe has a large drop, and the rolling of the aluminum liquid can easily cause aluminum splashing and sputtering.

[0005] Based on this, it is necessary to design a submerged flow diversion device to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a submerged flow guide device to solve the problems existing in the above-mentioned prior art, reduce the rolling force caused by the large drop, and reduce the occurrence of splashing.

[0007] To achieve the above purpose, the present invention provides the following solutions:

[0008] The utility model provides a submerged flow diversion device, comprising a submerged flow tube and a float; the submerged flow tube has a circulation channel running through it from top to bottom; the density of the float is lower than the density of the liquid injected into the circulation channel; the float has a hollow cavity and an upper opening connected to the hollow cavity and at least one side opening; the lower end of the submerged flow tube is passed through the upper opening and extends into the hollow cavity; and a flow gap is provided between the lower end of the submerged flow tube and the bottom of the hollow cavity.

[0009] Preferably, the inner diameter of the upper opening is 4 mm larger than the outer diameter of the lower end of the submerged flow tube.

[0010] Preferably, the submerged flow pipe includes an inverted conical pipe and a straight pipe; in the vertical direction, the large end of the inverted conical pipe is located above the small end of the inverted conical pipe; the upper end of the straight pipe is fixedly connected to and communicated with the small end of the inverted conical pipe.

[0011] Preferably, carrying handles are fixedly provided on opposite sides of the float.

[0012] Preferably, the longitudinal cross-sectional dimension of the side opening is the same as the longitudinal cross-sectional dimension of the hollow cavity.

[0013] Preferably, each of the carrying handles is integrally formed with the float.

[0014] Preferably, the flow gap is 10mm.

[0015] Preferably, two opposite side openings are formed on the float.

[0016] Preferably, the inverted conical tube and the straight tube are integrally formed.

[0017] The utility model discloses relative to prior art has obtained following technical effect:

[0018] The utility model discloses a submerged flow type flow guide device, through adopting the cooperation of submerged flow pipe and float, the outlet of molten aluminum flows out through the side opening of float after the flow of the flow channel of submerged flow pipe, and the flow direction of molten aluminum outlet is restrained and changed, thereby reducing the impact force of molten aluminum caused by drop, and reducing the excessive aluminum slag and sputtering phenomenon caused by the contact of molten aluminum rolling with air, when the liquid level of molten aluminum is higher than the molten aluminum outlet position of submerged flow pipe, the flowing molten aluminum will flow under the liquid level, when the liquid level is higher than float, the float will be lifted with the liquid level under the action of liquid level lift force, and the position of molten aluminum outlet close to the lower end of submerged flow pipe is lifted, thereby playing a certain flow control effect, filling the molten aluminum in submerged flow pipe, forming the submerged flow form, and reducing the large amount of aluminum slag and sputtering phenomenon caused by large drop.

[0019] Further, the inner diameter of upper opening is 4mm larger than the outer diameter of lower end of submerged flow pipe, providing a relatively sufficient space for the lower end of submerged flow pipe to pass through the upper opening of float, and the float is small in density and is small in motion resistance when being lifted, and is more flexible.

[0020] Further, the large opening area of large end can disperse the impact force of liquid, so that the liquid will not produce sharp pressure change and turbulent phenomenon when entering the submerged flow pipe suddenly due to the limitation of narrow channel.

[0021] Further, the carrying handle arranged on the float can be conveniently grabbed and moved by the operator.

[0022] Further, the side opening is arranged to have the same longitudinal section size as the hollow cavity, so that the side opening has larger discharge port size, and the liquid in the submerged flow pipe can be conveniently discharged better.

[0023] Further, the integrally formed carrying handle and float can always maintain the integrity of the structure, and the components will not be separated due to frequent carrying operation or environmental factors, thereby guaranteeing the stability and reliability of the whole device.

[0024] Further, the 10mm flow gap can ensure that the liquid can flow out of the subsurface pipe into the hollow cavity of the float, while the flow of the liquid is restricted to a certain extent, so that the liquid does not accumulate near the lower end of the subsurface pipe due to the small gap, resulting in a large pressure difference and causing unstable flow or even backflow; the liquid does not flow out too dispersedly, too fast and difficult to control the flow direction due to the large gap, causing the liquid to flow out of the float and then appear violent rolling and splashing in the float.

[0025] Further, the two oppositely arranged side openings can make the liquid flow out of the hollow cavity from both sides of the float more evenly, reducing the turbulence of the flowing liquid.

[0026] Further, the tapered pipe and the straight pipe are integrally formed, which has fewer components, a simpler structure and a more secure connection. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0028] Fig. 1 The overall structure of the subsurface flow guide device provided by the present application is shown in the figure.

[0029] Fig. 2 The front view of the subsurface flow guide device provided by the present application is shown in the figure.

[0030] Fig. 3 The cross-sectional structure of the subsurface flow guide device provided by the present application is shown in the figure.

[0031] In the figure:

[0032] 10 - subsurface pipe; 11 - inverted tapered pipe; 12 - straight pipe;

[0033] 20 - float; 21 - upper opening; 22 - side opening; 23 - carrying handle;

[0034] 30 - flow gap. DETAILED DESCRIPTION

[0035] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the present application.

[0036] The utility model discloses a kind of undercurrent diversion devices, to solve the problems existing in prior art, reduce the tumbling strength caused by big drop, reduce the generation of splashing phenomenon.

[0037] In order to make the above-mentioned purposes, features and advantages of the present application more apparent, easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0038] Embodiment one

[0039] The embodiment provides an undercurrent diversion device, as shown in Figs. 1-3 The undercurrent pipe 10 has a flow-through channel that penetrates from top to bottom. The density of the floating object 20 is lower than that of the liquid injected into the flow-through channel. The floating object 20 has a hollow cavity and an upper opening 21 and at least one side opening 22 that communicate with the hollow cavity. The lower end of the undercurrent pipe 10 is arranged in the upper opening 21 and extends into the hollow cavity. There is a flow gap 30 between the lower end of the undercurrent pipe 10 and the bottom of the hollow cavity.

[0040] By using the undercurrent pipe 10 and the floating object 20 in cooperation, the molten aluminum flows out through the side opening 22 of the floating object 20 after flowing through the flow-through channel of the undercurrent pipe 10, the flow direction of the molten aluminum outlet is constrained and changed, thereby reducing the impact force of the molten aluminum caused by the drop, and reducing the excessive aluminum slag and splashing phenomenon caused by the rolling of the molten aluminum. When the liquid level of the molten aluminum is higher than the position of the undercurrent pipe 10, the flowing molten aluminum will flow under the liquid level, and when the liquid level is higher than the floating object 20, the floating object 20 will be lifted with the liquid level and will be close to the position of the undercurrent pipe 10, thereby playing a certain flow control role, filling the undercurrent pipe 10 with molten aluminum, forming an undercurrent form, reducing the amount of aluminum slag and splashing phenomenon caused by large drop, reducing casting loss, and improving casting quality.

[0041] Among them, the related structure of the undercurrent pipe 10 is explained as follows:

[0042] In the optional scheme of the embodiment, it is more preferred that Figs. 1-3As shown, the underflow pipe 10 comprises an inverted cone pipe 11 and a straight pipe 12; in the vertical direction, the large end of the inverted cone pipe 11 is above the small end of the inverted cone pipe 11; the upper end of the straight pipe 12 is fixedly connected and communicated with the small end of the inverted cone pipe 11. The large opening area of the large end can disperse the impact force of the liquid, so that the liquid will not produce violent pressure change and turbulent flow phenomenon when it enters the underflow pipe 10 suddenly.

[0043] In an optional solution of the embodiment, preferably, as shown in Figs. 1-3 As shown, the inverted cone pipe 11 and the straight pipe 12 are integrally formed. The inverted cone pipe 11 and the straight pipe 12 are integrally formed, which has less parts, simpler structure and more firm connection.

[0044] Among them, the related structure of the float 20 is explained as follows:

[0045] In an optional solution of the embodiment, preferably, as shown in Fig. 1 and Fig. 3 As shown, the inner diameter of the upper opening 21 is 4mm larger than the outer diameter of the lower end of the underflow pipe 10. The inner diameter of the upper opening 21 is 4mm larger than the outer diameter of the lower end of the underflow pipe 10, which provides sufficient space for the lower end of the underflow pipe 10 to pass through the upper opening 21 of the float 20, and the float 20 can be lifted more flexibly when it rises based on the small density and the resistance to upward movement is small.

[0046] In an optional solution of the embodiment, preferably, as shown in Fig. 3 As shown, two oppositely arranged side openings 22 are arranged on the float 20. The two oppositely arranged side openings 22 can make the liquid flow out of the hollow cavity from both sides of the float 20 more evenly, and slow down the turbulent flow of the outflowing liquid.

[0047] In an optional solution of the embodiment, preferably, as shown in Fig. 3 As shown, the longitudinal sectional dimension of the side opening 22 is the same as the longitudinal sectional dimension of the hollow cavity. The side opening 22 is arranged to have the same longitudinal sectional dimension as the hollow cavity, so that it has a larger exhaust port size, which facilitates better discharge of the liquid from the underflow pipe 10.

[0048] In an optional solution of the embodiment, preferably, as shown in Figs. 1-3 As shown, the float 20 is fixedly provided with a carrying handle 23 on each of the opposite sides. The carrying handle 23 arranged on the float 20 can facilitate the operator to grasp and move the float 20.

[0049] In the optional solution of the embodiment, preferably, each carrying handle 23 is integrally formed with the float 20. The integrally formed carrying handle 23 and the float 20 can always maintain the structural integrity, and will not be separated due to frequent carrying operations or environmental factors, thereby ensuring the stability and reliability of the device as a whole.

[0050] In addition, the following related settings are described:

[0051] In the optional solution of the embodiment, preferably, as shown in the figure, Fig. 3 The flow gap 30 is 10 mm. The 10 mm flow gap 30 can ensure that the liquid can flow out of the submerged pipe 10 into the hollow cavity of the float 20, while also playing a certain restraining role on the flow of the liquid. It will not be too small to seriously hinder the flow of liquid, resulting in the accumulation of liquid near the lower end of the submerged pipe 10, causing a large pressure difference and thus unstable flow or even backflow. It will not be too large to make the liquid flow out too dispersed, too fast and difficult to control the flow direction, causing subsequent violent rolling and splashing in and out of the float 20.

[0052] Specifically, the related sizes of the submerged pipe 10 and the float 20 can be set according to actual needs.

[0053] Specifically, in use, the position of the submerged pipe 10 is fixed.

[0054] The principle and implementation mode of the specific examples are described in the utility model, and the above embodiment is only used to help understand the method and core idea of the utility model. Meanwhile, for those skilled in the art, according to the idea of the utility model, the specific implementation mode and application range will be changed. In conclusion, the content of the specification should not be understood as a limitation of the utility model.

Claims

1. A submerged flow diversion device, characterized in that: The device comprises a submerged pipe and a float; The submerged pipe has a flow channel through it from top to bottom; The density of the float is lower than that of the liquid injected into the flow channel; The float has a hollow cavity and an upper opening and at least one side opening in communication with the hollow cavity; The lower end of the submerged pipe is arranged in the upper opening and extends into the hollow cavity, and the lower end of the submerged pipe and the bottom of the hollow cavity have a flow gap.

2. The underdrain of claim 1, wherein: The inner diameter of the upper opening is 4mm larger than the outer diameter of the lower end of the submerged pipe.

3. The underdrain of claim 1, wherein: The submerged pipe comprises an inverted conical pipe and a straight pipe; In the vertical direction, the large end of the inverted conical pipe is above the small end of the inverted conical pipe; The upper end of the straight pipe is fixedly connected and communicated with the small end of the inverted conical pipe.

4. The underdrain of claim 1, wherein: The float is fixedly provided with carrying handles on opposite sides.

5. The underdrain of claim 1, wherein: The longitudinal cross-sectional dimension of the side opening is the same as that of the hollow cavity.

6. The underdrain of claim 4, wherein: Each of the carrying handles is integrally formed with the float.

7. The underdrain of claim 1, wherein: The flow gap is 10mm.

8. The underdrain of claim 1, wherein: Two side openings are arranged on the float.

9. The underdrain of claim 3, wherein: The inverted conical pipe and the straight pipe are integrally formed.

Images