Water atomizing device

Abstract

The utility model provides a kind of water atomization device, it is related to metal powder preparation equipment technical field.The utility model discloses a flow guide groove piece and atomizer, flow guide groove piece includes the first groove body and the second groove body, the cross section of first groove body is inverted trapezoidal structure, the cross-sectional area of second groove body is rectangular structure;Atomizer is arranged below flow guide groove piece, and atomizer includes atomizer body and top cover, and atomizer body center is equipped with flow guide hole, and flow guide hole is communicated with second groove body, and multiple water outlets are equipped in atomizer body, and the high-pressure water flow that sprays from water outlet can impact the metal and alloy liquid that flow from flow guide hole.The design of flow guide groove effectively makes metal and alloy liquid show zonal flow, and flow velocity is more stable, avoid the flow guide groove blockage caused in water atomization process, enhance atomization effect, improve atomization efficiency, yield;The water outlet of atomizer is provided with multiple, effectively increase metal liquid flow atomization area, improve atomization efficiency.

Description

Technical Field

[0001] This utility model relates to the field of metal powder preparation equipment technology, and in particular to a water atomization device. Background Technology

[0002] Currently, water atomization technology is widely used in metal powder preparation due to its advantages such as high production efficiency and fast cooling speed. However, achieving high-quality water atomization for industrial silicon, silicon alloys, and high-viscosity ferrous and non-ferrous metal alloys and elemental metals presents many challenges.

[0003] In traditional disc-type atomizing devices, the near-circular guide tubes, when guiding industrial silicon, silicon alloys, and high-viscosity metals and alloys, result in significant flow resistance. This can lead to molten metal adhering to the tube walls and impeded flow, causing unstable flow rates and consequently affecting the atomization effect, resulting in uneven powder particle size. The near-circular guide tubes are also prone to clogging the molten metal flow, necessitating frequent replacement of the intermediate container and guide tubes to continue atomization production, increasing production costs and equipment maintenance workload.

[0004] Traditional disc-shaped atomizing discs suffer from insufficient atomization area and fragmentation capacity when dealing with high-viscosity liquid metals and alloys, making them prone to clogging and causing the liquid metal to adhere to and ablate the atomizing disc. High-viscosity liquid metals and alloys are difficult to disperse into fine droplets under the circumferentially distributed atomizing nozzles of a disc-shaped atomizing disc, resulting in a high proportion of coarse particles in the powder product, which cannot meet the stringent particle size requirements of high-end applications. Utility Model Content

[0005] This invention provides a water atomization device. Existing technologies suffer from problems such as large flow resistance, unstable flow rate, uneven powder particle size, and blockage of molten metal flow caused by near-circular guide tubes; and small atomization area and insufficient crushing capacity of disc-shaped atomizing discs, which easily lead to bag blockage and a high proportion of coarse particles in the powder product.

[0006] To solve the aforementioned problems of this utility model, the technical solution provided by this utility model is as follows:

[0007] A water atomizing device includes a flow guide channel, the flow guide channel comprising a first channel and a second channel that are connected to each other, the first channel having an inverted trapezoidal cross-section and the second channel having a rectangular cross-section.

[0008] An atomizer is arranged below the flow guide groove. The atomizer has a flow guide hole in the center, which is connected to the second groove. The atomizer body has multiple water outlets. The high-pressure water jet from the water outlets can impact the metal and alloy liquid flowing out from the flow guide hole.

[0009] Optionally, the cross-section of the outer contour of the guide channel is an inverted trapezoidal structure.

[0010] Optionally, the atomizer is provided with a water channel, which is connected to the water outlet.

[0011] Optionally, the outlet is inclined relative to the guide hole, and the angle between the centerline of the outlet and the centerline of the guide hole is 5°-90°.

[0012] Optionally, the atomizer body is provided with a water inlet, which is connected to the water channel.

[0013] Optionally, the plurality of water outlets are arranged in two rows and located on both sides of the guide hole.

[0014] Optionally, the multiple water outlets are arranged in four rows, with two rows of water outlets located on one side of the guide hole and the other two rows of water outlets located on the other side of the guide hole.

[0015] Optionally, the multiple water outlets are arranged in multiple rows, and the multiple rows of water outlets are evenly distributed on both sides of the guide hole.

[0016] Optionally, the atomizer body is provided with a water inlet, which is connected to the water channel.

[0017] Optionally, the atomizer further includes a top cover, which is mounted on top of the atomizer body and covers the water channel.

[0018] Optionally, a nozzle may be installed at the outlet.

[0019] The above technical solution has at least the following advantages compared with the existing technology:

[0020] The above-described solution, the guide channel and atomizer of this utility model, are effectively applied to water atomization of industrial silicon and silicon alloys, high-viscosity ferrous metal alloys, non-ferrous metal alloys and elemental metals, as well as low-viscosity and metals.

[0021] The powder preparation process of alloy materials greatly reduces the probability of clogging in the ladle, improves the quality and production efficiency of metal powders, and meets the needs of large-scale industrial production.

[0022] The guide channel of the guide channel adopts a trapezoidal and rectangular pipe structure, which effectively makes the liquid flow of industrial silicon, silicon alloy, high viscosity ferrous metal alloy, non-ferrous metal alloy and metal element flow out in a ribbon shape, with a more stable flow rate, avoiding blockage of the guide channel during water atomization, enhancing the atomization effect, and improving atomization efficiency and yield; the nozzle of the atomizer is symmetrically distributed in single or multiple rows and multiple holes, which effectively increases the atomization area of ​​the metal liquid flow, improves the atomization efficiency, and meets the needs of large-scale industrial production. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a front view of the flow guide groove component of this utility model;

[0025] Figure 2 This is a top view of the flow guide groove component of this utility model;

[0026] Figure 3 This is a top view of the atomizer of this utility model;

[0027] Figure 4 This is a top view of the top cover of this utility model;

[0028] Figure 5 This is a cross-sectional view of the atomizer (without nozzle) of this utility model;

[0029] Figure 6 This is a cross-sectional view of the atomizer of this utility model.

[0030] The annotations in the attached figures are explained as follows:

[0031] 1. Flow guide trough; 11. First trough; 12. Second trough; 2. Atomizer; 21. Water inlet; 22. Water channel; 23. Water outlet; 231. Nozzle; 24. Flow guide hole; 25. Top cover; 26. Atomizer body. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0033] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an," "a," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. The terms "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0034] It should be noted that the terms "upper", "lower", "left", "right", "front", and "back" used in this utility model are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0035] like Figure 1 As shown, this embodiment provides a water atomization device for guiding and atomizing industrial silicon, silicon alloys, and high-viscosity ferrous metals, non-ferrous metals, and elemental metal liquids into powders. The water atomization device includes a flow guiding channel 1 and an atomizer 2. The flow guiding channel 1 guides the flow of the aforementioned metal and alloy liquids, and the atomizer 2 atomizes the metal and alloy liquids guided out by the flow guiding channel 1.

[0036] like Figure 1 and Figure 2As shown, the flow guide trough 1 includes a first trough 11 and a second trough 12 connected together. The cross-section of the outer contour of the flow guide trough 1 is an inverted trapezoidal structure, the cross-section of the first trough 11 is an inverted trapezoidal structure, and the cross-sectional area of ​​the second trough 12 is a rectangular structure. The first trough 11 and the second trough 12 form a funnel shape. The shape and structure of the flow guide trough 1 enable the molten metal flow to form a relatively stable and regular laminar flow state within the trough. During laminar flow, the layers of molten metal flow slide relative to each other, reducing the chaos and collisions inside the molten metal flow and reducing the possibility of blockage caused by local stagnation and accumulation of molten metal flow due to turbulence. The structure of the flow guide trough 1 provides a more stable flow path for the molten metal flow, reducing the fluctuation and oscillation of the flow. The stable flow can prevent large fluctuations in the flow from impacting the inner wall of the guide pipe, causing impurities or solidified metal particles attached to the pipe wall to fall off and block the pipe, and preventing blockage caused by the accumulation of molten metal in certain parts due to flow fluctuations. The flow guide trough 1 is bonded and embedded in the center bottom of the tundish (metallurgical unit) using refractory mortar. The tundish (refractory material container) and the flow guide trough 1 form a stable whole, preventing molten metal leakage. At least one flow guide trough 1 is provided; it is not limited to a single trough and can be made into multiple troughs 1 according to length, strength, and other requirements. Multiple flow guide troughs 1 can be connected by reinforcing ribs. Specifically, the second trough 12 can be configured with a width of 0.5mm-60mm and a length of 10mm-800mm, depending on the characteristics of the atomized molten metal and alloy liquid and production requirements. Specifically, considering the corrosive properties of molten metal and alloy liquid on refractory materials, the flow guide trough 1 uses refractory materials that are resistant to corrosion and have acidic, neutral, or alkaline conditions to produce high-quality metal powder. The refractory material should have high temperature resistance and strong chemical stability.

[0037] like Figures 3-6As shown, an atomizer 2 is arranged below the guide channel 1. The atomizer 2 includes an atomizer body 26 and a top cover 25. A guide hole 24 is provided inside the atomizer body 26, specifically, the guide hole 24 is located at the center of the atomizer body 26. Furthermore, the inner wall of the guide hole 24 is lined with refractory material to prevent damage and corrosion of the atomizer 2 when molten metal and alloy pass through the guide hole 24. The atomizer body 26 is provided with a water channel 22, an inlet 21, and an outlet 23. The inlet 21 communicates with the water channel 22, and the outlet 23 communicates with the water channel 22. High-pressure water enters the water channel 22 from the inlet 21, flows within the water channel 22, and is ejected from the outlet 23. The water outlet 23 is inclined relative to the guide hole 24. Depending on the specific atomization powder requirements, the angle α between the centerline of the inner water outlet 23 and the centerline of the guide hole 24 is 5°-50°, and the angle α' between the centerline of the outer water outlet 23 and the centerline of the guide hole 24 is 5°-50°. Furthermore, the water outlet 23 can be configured according to the specific characteristics of the metal and alloy liquid and the required atomization volume. Multiple water outlets 23 can be arranged in two rows, with two rows of outlets 23 located on either side of the guide hole 24; or, multiple water outlets 23 can be arranged in four rows, with two rows of outlets 23 located on one side of the guide hole 24 and the other two rows on the other side; or, multiple water outlets 23 can be arranged in multiple rows, with multiple rows of outlets 23 evenly distributed on both sides of the guide hole 24. A nozzle 231 is installed at the water outlet 23, and high-pressure water is sprayed from the nozzle 231. The top cover 25 is installed on top of the atomizer body 26, and the top cover 25 covers the water channel 22, so that the water channel 22 forms an internal closed water tank. Specifically, the top cover 25 is welded to the top of the atomizer 2. Specifically, the atomizer 2 has a rectangular structure and is made of high-strength, wear-resistant alloy material through machining and welding.

[0038] The guide groove 1 and atomizer 2 of this utility model are effectively applied to the powder preparation process of industrial silicon and silicon alloys, high-viscosity ferrous metal alloys, non-ferrous metal alloys and metal elements, as well as low-viscosity metal and alloy materials through water atomization. This greatly reduces the probability of clogging in the intermediate package, improves the quality and production efficiency of metal powders, and meets the needs of large-scale industrial production.

[0039] The guide channel 1 adopts a trapezoidal and rectangular pipe structure, which effectively allows the liquid flow of industrial silicon, silicon alloy, high viscosity ferrous metal alloy, non-ferrous metal alloy and metal element to flow out in a ribbon shape, avoiding blockage of the guide channel 1 during water atomization, enhancing the atomization effect, and improving atomization efficiency and yield; the nozzles 231 of the atomizer 2 are symmetrically distributed in single or multiple rows and multiple holes, which effectively increases the atomization area of ​​the metal liquid flow, improves the atomization efficiency, and meets the needs of large-scale industrial production.

[0040] The working process of a water atomizing device is as follows:

[0041] The top of the guide channel 1 and the bottom center of the intermediate ladle are embedded together with refractory clay to ensure a tight connection. The molten metal and alloy liquid flow into the first tank 11 through the intermediate ladle and flow out from the second tank 12.

[0042] The guide hole 24 of the atomizer 2 is located directly below the second tank 12, and the metal and alloy liquid flows downward through the guide hole 24;

[0043] High-pressure water enters waterway 22 through inlet 21. After passing through waterway 22 and outlet 23, the high-pressure water is sprayed out through nozzle 231. The sprayed high-pressure water flow is in the form of ribbons and bundles. The sprayed high-pressure water impacts the metal and alloy liquid flowing downward from guide hole 24. The metal and alloy liquid is broken into fine powder by single or multiple impacts, completing the water atomization process.

[0044] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. The protection scope of this utility model shall be determined by the protection scope of the claims.

Claims

1. A water atomizing device characterized by, The flow guide includes a flow guide, which includes a first channel and a second channel that are connected. The first channel has an inverted trapezoidal cross-section, and the second channel has a rectangular cross-section. An atomizer is arranged below the flow channel. The atomizer includes an atomizer body and a top cover. A flow channel is provided in the center of the atomizer body. The flow channel communicates with the second channel. The atomizer body has multiple water outlets. The high-pressure water jets sprayed from the water outlets can impact the metal and alloy liquids flowing out from the flow channel.

2. The water atomizing device according to claim 1, characterized in that, The cross-section of the outer contour of the flow guide groove is an inverted trapezoidal structure.

3. The water atomizing device according to claim 1, characterized in that, The atomizer body has a water channel, which is connected to the water outlet.

4. The water atomizing device according to claim 3, characterized in that, The outlet is inclined relative to the guide hole, and the angle between the centerline of the outlet and the centerline of the guide hole is 5°-50°.

5. The water atomizing device according to claim 3, characterized in that, The atomizer body is provided with a water inlet, which is connected to the water channel.

6. The water atomizing device according to claim 1, characterized in that, The multiple water outlets are arranged in two rows, and the two rows of water outlets are symmetrically distributed on both sides of the guide hole.

7. The water atomizing device according to claim 1, characterized in that, The multiple water outlets are arranged in four rows, and the four rows of water outlets are symmetrically distributed on both sides of the guide hole.

8. The water atomizing device according to claim 3, characterized in that, The atomizer body is provided with a water inlet, which is connected to the water channel.

9. The water atomizing device according to claim 3, characterized in that, The atomizer also includes a top cover, which is installed on top of the atomizer body and covers the water channel.

10. The water atomizing device according to claim 1, characterized in that, A nozzle is installed at the water outlet.

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