CN214079256U - Atomizing nozzle device - Google Patents
Atomizing nozzle device Download PDFInfo
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- CN214079256U CN214079256U CN202023147020.1U CN202023147020U CN214079256U CN 214079256 U CN214079256 U CN 214079256U CN 202023147020 U CN202023147020 U CN 202023147020U CN 214079256 U CN214079256 U CN 214079256U
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- atomizing
- thermal insulation
- nozzle device
- guide pipe
- insulation bag
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Abstract
The utility model relates to a gas atomization powder process technical field especially relates to an atomizing nozzle device. An atomizing nozzle device is used for preparing metal powder; the atomizing nozzle device comprises a thermal insulation bag, an atomizing flow guide pipe and an atomizing spray disk, and is characterized in that the thermal insulation bag is provided with an upper opening, the bottom of an inner cavity of the thermal insulation bag is in transition from a cylindrical structure to an inverted cone structure, the atomizing flow guide pipe is led out from the bottom of the thermal insulation bag, the inside of the atomizing flow guide pipe is communicated with the inner cavity of the thermal insulation bag, the inside of the atomizing flow guide pipe is in transition from a first cylindrical section to a cone section and then to a second cylindrical section, the first cylindrical section is communicated with the cone tip of the inverted cone structure of the thermal insulation bag, and the inner diameter of the second cylindrical section is smaller than the inner diameter of the first cylindrical section; the atomizing honeycomb duct runs through a centre bore of atomizing spray disk and with position is fixed between the atomizing spray disk. The atomizing nozzle device can avoid the blockage of the atomizing guide pipe, and the efficiency of preparing fine particle powder is stabilized.
Description
Technical Field
The utility model relates to a gas atomization powder process technical field especially relates to an atomizing nozzle device.
Background
The metal powder prepared by gas atomization has the advantages of high sphericity, controllable powder granularity, low oxygen content, low production cost, suitability for the production of various metals, alloy powder and amorphous phase and the like, and becomes the main development direction of the preparation technology of high-performance and special alloy powder.
Generally, when atomizing metal powder, the structure of the atomizing spray disk cannot be changed at will, and therefore, the structure of the atomizing nozzle, particularly the flow guide pipe, directly influences the process and efficiency of atomizing the metal powder. In the existing atomization equipment, for preparing finer metal powder particles, an atomization guide pipe is usually manufactured into a long-section cylindrical structure with a smaller diameter; when the metal liquid passes through the long section of cylinder, the pressure of the metal liquid flow is reduced quickly, the flow speed of the metal liquid in the atomization guide pipe is limited, and the pipe is easy to be scaled and blocked in the guide pipe, so that the atomization is interrupted. In order to avoid the blockage of the pipe by scales in the guide pipe, the existing equipment generally adopts the molten metal with higher temperature during atomization powder manufacturing, and in the atomization process, the guide pipe is continuously washed and eroded by the molten metal with high temperature, so that the caliber of the atomization guide pipe is continuously increased, and the yield of the atomization powder manufacturing is reduced. In addition, the mode of connection that the one end of using the honeycomb duct external diameter passes through refractory material and the bonding of insulation package bottom hole usually, can lead to seepage or drop between honeycomb duct and insulation package because of bonding not well during the powder process of atomizing, bring the potential safety hazard for the powder process of atomizing.
SUMMERY OF THE UTILITY MODEL
The utility model aims to remedy prior art's defect, provide an atomizing nozzle device to solve the stifled pipe of easy scale deposit in the present atomizing water conservancy diversion pipe, lead to the difficult problem that the atomizing powder process yield is low.
Specifically, the technical scheme of the utility model is that:
an atomizing nozzle device is used for preparing metal powder; the atomizing nozzle device comprises a thermal insulation bag, an atomizing flow guide pipe and an atomizing spray disk, wherein the thermal insulation bag is provided with an upper opening, the bottom of an inner cavity of the thermal insulation bag is in transition from a cylindrical structure to an inverted cone structure, the atomizing flow guide pipe is led out from the bottom of the thermal insulation bag, the inner part of the atomizing flow guide pipe is communicated with the inner cavity of the thermal insulation bag, the inner part of the atomizing flow guide pipe is in transition from a first cylindrical section to a cone section and then to a second cylindrical section, the first cylindrical section is communicated with the cone tip of the inverted cone structure of the thermal insulation bag, and the inner diameter of the second cylindrical section is smaller than that of the first cylindrical section; the atomizing honeycomb duct runs through a centre bore of atomizing spray disk and with position is fixed between the atomizing spray disk.
Furthermore, a transition step is arranged at the joint of the bottom of the heat-insulating bag and the atomization guide pipe, and the transition step prevents metal liquid from leaking after the heat-insulating bag is bonded with the atomization guide pipe.
Furthermore, the atomizing honeycomb duct is externally provided with a T-shaped structure, so that the heat loss of the atomizing honeycomb duct can be reduced.
Furthermore, the T-shaped head of the atomization flow guide pipe is fixed with the transition step at the bottom of the thermal insulation bag and then bonded by a refractory material, and the atomization flow guide pipe cannot loosen or fall off after being bonded by the refractory material.
Furthermore, the atomizing spray plate comprises a spray plate upper lip and a spray plate lower lip, and a cooling water cavity and a cooling water pipeline are arranged on one side, close to the spray plate upper lip, of the atomizing spray plate and used for cooling the atomizing spray plate.
Furthermore, an air cavity and an air inlet pipeline are arranged on one side of the atomizing spray disk close to the lower lip of the spray disk and used for circulating and storing high-pressure air.
The beneficial effects of the utility model are that insulation package bottom sets to back taper structure, can increase the decurrent pressure of metal liquid stream, and atomizing honeycomb duct is inside to be passed through to a cone section by a first cylinder section and then passes through to a second cylinder section, cone section structure can be with the further crescent of metal liquid stream to pressure, cylinder section structure can stable control atomizing honeycomb duct metal liquid downward flow rate and the efficiency of preparation fine particle powder, and then avoid atomizing honeycomb duct blocks up, need not adopt the molten metal of higher temperature, avoids appearing atomizing honeycomb duct and constantly washd by high temperature molten metal, erodes the problem that makes atomizing honeycomb duct bore constantly increase and make the atomizing powder process receive the yield reduction.
Drawings
Fig. 1 is a schematic structural diagram of an atomizing nozzle device according to a first embodiment.
Fig. 2 is a schematic structural view of an atomization nozzle according to a first embodiment.
In the figure: 1. the device comprises a heat insulation bag, 2 an atomization draft tube, 3 a spray disk upper lip, 4 an air cavity, 5 a cooling water cavity, 6 a cooling water pipeline, 7 an air inlet pipeline, 8 a spray disk lower lip, 21 a first cylindrical section, 22 a cone section and 23 a second cylindrical section.
Detailed Description
The embodiments described below are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 and 2, the present embodiment provides an atomizing nozzle device for preparing metal powder; the thermal insulation bag 1 is provided with an upper opening, the bottom of the inner cavity of the thermal insulation bag 1 is in a transition from a cylindrical structure to an inverted cone structure, the atomization draft tube 2 is led out from the bottom of the thermal insulation bag 1, the inside of the atomization draft tube 2 is communicated with the inner cavity of the thermal insulation bag 1, the inside of the atomization draft tube 2 is in a transition from a first cylindrical section 21 to a cone section 22 and then to a second cylindrical section 23, the first cylindrical section 21 is communicated with the cone tip of the inverted cone structure of the thermal insulation bag 1, and the inner diameter of the second cylindrical section 23 is smaller than the inner diameter of the first cylindrical section 21; the atomization guide pipe 2 penetrates through a center hole of the atomization spray disk and is fixed with the position between the atomization spray disk and the atomization guide pipe; 1 bottom back taper structure of thermal-insulating bag can increase the decurrent pressure of metal liquid stream, 2 inside of atomizing honeycomb duct is passed through a cone section 22 by a first cylinder section 21 and is passed through a second cylinder section 23 again, cone section structure can be with metal liquid stream to pressure further crescent, cylinder section structure can stable control atomizing honeycomb duct metal liquid downward flow rate and the efficiency of preparing fine particle powder, and then avoid atomizing honeycomb duct 2 blocks up, need not adopt the metal melt of higher temperature, avoids appearing atomizing honeycomb duct 2 constantly by high temperature metal melt scour, erosion messenger the problem that the yield reduces is received to the atomizing honeycomb duct 2 bore constantly increase messenger atomizing powder process.
In this embodiment, magnesia or alumina is uniformly mixed according to a certain particle size ratio, and the mixture is manufactured according to the shape and size and baked to form the thermal insulation bag 1. The atomization guide pipe 2 is made of materials such as boron nitride or zirconia according to the shape and the size. Then, the atomization guide pipe 2 penetrates through a lower hole in the bottom of the thermal insulation bag 1, the position of the atomization guide pipe is adjusted and then fixed, the thermal insulation bag 1 and the atomization guide pipe 2 are bonded into a whole by a material formed by mixing magnesia or alumina powder and water glass, and finally the thermal insulation bag is dried by hot air to keep no sundries in the thermal insulation bag 1, so that a combined body of the thermal insulation bag 1 and the atomization guide pipe 2 is obtained, and after the combined body is formed, the situation of loosening or falling cannot occur, and the potential safety hazard caused by atomization is avoided; during atomization experiments or production, the heat-insulating bag 1 and the atomization guide pipe 2 are combined and placed to the central hole of the atomization spray disk 3, and the heat-insulating bag is fixed after the position is adjusted and is not changed randomly.
Preferably, the atomizing spray plate comprises a spray plate upper lip 3 and a spray plate lower lip 8, wherein a cooling water cavity 5 and a cooling water pipeline 6 are arranged at one side of the spray plate upper lip 3, and are used for cooling the atomizing spray plate. An air cavity 4 and an air inlet pipeline 7 are arranged on one side of the atomizing spray disk close to the lower lip 8 of the spray disk and are used for circulating and storing high-pressure air; a transition step is arranged at the joint of the bottom of the heat-insulating bag 1 and the atomization flow guide pipe 2, and the transition step prevents molten metal from leaking after the heat-insulating bag 1 is bonded with the atomization flow guide pipe 2; the atomizing honeycomb duct 2 is externally provided with a T-shaped structure, so that the heat loss of the atomizing honeycomb duct 2 can be reduced.
The utility model discloses simple structure, the insulation package bottom sets to the back taper structure, can increase the decurrent pressure of metal liquid stream, the atomizing honeycomb duct is inside to be passed through a cone section by a first cylinder section and then passes through a second cylinder section, cone section structure can be further crescent with the metal liquid stream to pressure, cylinder section structure can stable control atomizing honeycomb duct metal liquid downward flow rate and the efficiency of preparation fine particle powder, and then avoids atomizing honeycomb duct stops up.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.
Claims (6)
1. An atomizing nozzle device is used for preparing metal powder; the atomizing nozzle device comprises a thermal insulation bag, an atomizing flow guide pipe and an atomizing spray disk, and is characterized in that the thermal insulation bag is provided with an upper opening, the bottom of an inner cavity of the thermal insulation bag is in transition from a cylindrical structure to an inverted cone structure, the atomizing flow guide pipe is led out from the bottom of the thermal insulation bag, the inside of the atomizing flow guide pipe is communicated with the inner cavity of the thermal insulation bag, the inside of the atomizing flow guide pipe is in transition from a first cylindrical section to a cone section and then to a second cylindrical section, the first cylindrical section is communicated with the cone tip of the inverted cone structure of the thermal insulation bag, and the inner diameter of the second cylindrical section is smaller than the inner diameter of the first cylindrical section; the atomizing honeycomb duct runs through a centre bore of atomizing spray disk and with position is fixed between the atomizing spray disk.
2. The atomizing nozzle device according to claim 1, wherein a transition step is provided at a connection between the bottom of the thermal insulation pack and the atomizing flow guide tube.
3. The atomizing nozzle device according to claim 1, wherein said atomizing nozzle tube has a "T" shaped configuration on the exterior.
4. The atomizing nozzle device as claimed in claim 3, wherein the head portion of the T-shaped structure is fixed to the transition step at the bottom of the thermal insulation pack to form a whole by bonding refractory materials.
5. The atomizing nozzle device according to claim 1, wherein said atomizing spray disk includes an upper lip and a lower lip, and a cooling water chamber and a cooling water pipe are provided in a side of said atomizing spray disk adjacent to said upper lip for cooling said atomizing spray disk.
6. The atomizing nozzle device according to claim 5, wherein an air chamber and an air inlet duct are provided in the atomizing spray disk on a side thereof adjacent to the lower lip of the spray disk, for circulating and storing high-pressure air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023147020.1U CN214079256U (en) | 2020-12-23 | 2020-12-23 | Atomizing nozzle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023147020.1U CN214079256U (en) | 2020-12-23 | 2020-12-23 | Atomizing nozzle device |
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| CN214079256U true CN214079256U (en) | 2021-08-31 |
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| CN202023147020.1U Active CN214079256U (en) | 2020-12-23 | 2020-12-23 | Atomizing nozzle device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114131031A (en) * | 2021-10-21 | 2022-03-04 | 深圳市万泽航空科技有限责任公司 | Middle leaky ladle system with spray disc protection function and installation method |
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2020
- 2020-12-23 CN CN202023147020.1U patent/CN214079256U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114131031A (en) * | 2021-10-21 | 2022-03-04 | 深圳市万泽航空科技有限责任公司 | Middle leaky ladle system with spray disc protection function and installation method |
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Effective date of registration: 20220215 Address after: 510642 No. five, 483 mountain road, Guangzhou, Guangdong, Tianhe District Patentee after: SOUTH CHINA AGRICULTURAL University Address before: 510640 courtyard, 88 Jinhui street, Tianhe District, Guangzhou City, Guangdong Province Patentee before: GUANGDONG IRON AND STEEL INSTITUTE |