CN216680213U - Automatic oxygen-controlled atomization powder making device - Google Patents
Automatic oxygen-controlled atomization powder making device Download PDFInfo
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- CN216680213U CN216680213U CN202123272978.8U CN202123272978U CN216680213U CN 216680213 U CN216680213 U CN 216680213U CN 202123272978 U CN202123272978 U CN 202123272978U CN 216680213 U CN216680213 U CN 216680213U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model provides an automatic oxygen-controlled atomization powder preparation device, which comprises an atomization chamber, an oxygen content analyzer, a PLC (programmable logic controller) control unit, a gas supply unit, a gas pretreatment unit and a gas detector, wherein the oxygen content analyzer and the PLC control unit are connected to control a gas supplementing process, so that the oxygen content in the atomization chamber can be accurately controlled, the product quality is ensured, and the pressure and the concentration value of inert gas introduced into the atomization chamber can be accurately controlled by connecting a gas detector and the gas pretreatment unit, so that the control of the gas supplementing amount is more accurate, and the gas supplementing process is quicker; adopts non-vacuum atomization powder preparation, has no strict requirement on vacuum degree, and has simple equipment, convenient operation and high production efficiency.
Description
Technical Field
The utility model relates to the technical field of atomization powder making, in particular to an automatic oxygen control atomization powder making device.
Background
When powder such as stainless steel for 3D printing, die steel and the like, nickel-based alloy for laser cladding, iron-based alloy and cobalt-based alloy powder for dentistry are produced, non-vacuum induction melting gas atomization equipment is needed in order to improve production efficiency and reduce production cost. The equipment adopts medium-frequency induction melting to melt materials, molten steel after melting is poured into a tundish and flows out through a bottom flow guide pipe, the molten steel passes through an atomizing nozzle, and high-pressure gas is sprayed out of the atomizing nozzle to crush the molten steel into spherical powder.
In the existing non-vacuum gas atomization powder preparation process, the actual numerical value of the oxygen content in the atomization chamber cannot be monitored, whether powder is oxidized or not can be known after testing and cannot be judged and controlled in advance, and the non-vacuum gas atomization powder preparation furnace can supplement a certain amount of inert gas into the atomization chamber according to experience before atomization so as to reduce the oxygen content in the atomization chamber. However, because the actual value of the oxygen content in the atomizing chamber cannot be monitored, and the gas supplement amount of the inert gas cannot be accurately determined, the fluctuation range of the oxygen content in the atomizing chamber is large, the powder is seriously oxidized, and finally the product quality is unstable.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an automatic oxygen-controlled atomization powder making device which can monitor the actual numerical value of the oxygen content in an atomization chamber, can automatically supplement air to maintain the oxygen content in the atomization chamber at a preset target value, has simple equipment and convenient operation, and can carry out continuous production.
The utility model provides an automatic oxygen-controlled atomization powder preparation device which comprises an atomization chamber, an oxygen content analyzer, a PLC (programmable logic controller) control unit, a gas supply unit, a gas pretreatment unit, a first flow control unit, a second flow control unit and a gas detector, wherein the gas supply unit is connected with an inlet of the gas pretreatment unit through a gas inlet pipeline, and an outlet of the gas pretreatment unit is connected with the bottom of the atomization chamber through a middle pipeline; the PLC control unit is electrically connected with the oxygen content analyzer, the gas detector, the first flow control unit and the second flow control unit, the first flow control unit is arranged on the gas inlet pipeline, and the second flow control unit is arranged on the middle pipeline; the oxygen content analyzer is used for detecting the oxygen content in the gas outlet pipeline, and the gas detector is electrically connected with the gas pretreatment unit.
Further, the oxygen content analyzer is a direct type or indirect type oxygen content analyzer.
Further, a sensor is arranged in the gas outlet pipeline and used for detecting the oxygen content in the gas outlet pipeline.
Furthermore, a branch pipeline is arranged on the gas outlet pipeline, and the gas is directly conveyed to an oxygen content analyzer through the branch pipeline for oxygen content analysis.
Further, the first flow control unit and the second flow control unit are flow regulating solenoid valves.
Further, the gas pretreatment unit comprises a gas filtering unit and a gas constant unit, wherein the gas filtering unit is used for filtering impurities in the gas, and the gas constant unit is used for keeping the pressure and the concentration of the gas introduced into the atomization chamber constant.
Furthermore, the gas filtering unit is a filter screen, a filter core or a filter membrane.
Further, the gas detector can detect the gas pressure and concentration value in the gas pretreatment unit in real time.
Further, the outlet of the air outlet pipeline is connected with a gas recovery unit.
Further, the gas recovery unit is connected with the gas supply unit.
The automatic oxygen-controlled atomization powder making device provided by the utility model has the following beneficial effects: the device can accurately control the oxygen content in the atomizing chamber, and inert gas is supplemented when the oxygen content exceeds a set value, so that the product quality is ensured; the device can accurately control the pressure and concentration value of the inert gas introduced into the atomization chamber, so that the control of the gas supplement amount is more accurate, and the gas supplement process is quicker; adopts non-vacuum atomization powder preparation, has no strict requirement on vacuum degree, has simple equipment and convenient operation, and can carry out continuous production.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of an automatic oxygen-controlled atomization powder-making device according to an embodiment of the present invention.
Icon: 1-an atomization chamber; 2-an oxygen content analyzer; 3-a PLC control unit; 4-an air supply unit; 5-an air inlet pipeline; 6-a first flow control unit; 7-a gas pre-treatment unit; 8-a gas detector; 9-a second flow control unit; 10-an intermediate pipe; 11-an outlet pipe; 12-gas recovery unit.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, an automatic oxygen-controlled atomized powder production device includes an atomizing chamber 1, an oxygen content analyzer 2, a PLC control unit 3, a gas supply unit 4, a gas pretreatment unit 7, and a gas detector 8, wherein the gas supply unit 4 is connected to an inlet of the gas pretreatment unit 7 through a gas inlet pipe 5, an outlet of the gas pretreatment unit 7 is connected to a bottom of the atomizing chamber 1 through an intermediate pipe 10, an inert gas supplied by the gas supply unit 4 flows through the gas inlet pipe 5 and then is introduced into the gas pretreatment unit 7, the inert gas reaches a predetermined pressure and concentration after being treated in the gas pretreatment unit 7, then flows through the intermediate pipe 10 and is introduced into the bottom of the atomizing chamber 1, and then flows out from a gas outlet pipe 11 disposed at a top of the atomizing chamber 1.
The PLC control unit 3 is electrically connected with the oxygen content analyzer 2, the gas detector 8, the first flow control unit 6 and the second flow control unit 9, the first flow control unit 6 is arranged on the gas inlet pipeline 5, and the second flow control unit 9 is arranged on the middle pipeline 10; the oxygen content analyzer 2 is used for detecting the oxygen content value in the gas outlet pipeline 11 and transmitting a signal to the PLC control unit 3; the gas detector 8 is electrically connected to the gas preprocessing unit 7, and is configured to detect a gas pressure and a concentration value in the gas preprocessing unit 7, and feed back a signal to the PLC control unit 3, where the PLC control unit 3 receives an oxygen content value sent by the oxygen content analyzer 2 and a real-time measurement value signal of the gas pressure and the concentration sent by the gas detector 8, calculates according to preset target values and real-time measurement values of the oxygen content value, the gas pressure and the concentration value, and obtains flow adjustment instructions of the first flow control unit 6 and the second flow control unit 9 after calculation; the first flow control unit 6 and the second flow control unit 9 receive the flow regulation instruction of the PLC control unit 3 and respectively control the opening degrees of the first flow control unit 6 and the second flow control unit 9, so as to maintain the oxygen content value in the atomization chamber 1 within a predetermined target range.
It can be understood that the oxygen content analyzer 2 may be a direct type or indirect type oxygen content analyzer, as long as it can measure the oxygen content in the gas to be measured, the direct type adopts a mode of directly measuring the oxygen content, the indirect type adopts a mode of measuring the content of other gases first, and then the oxygen content is obtained after conversion; specifically, a sensor is disposed in the gas outlet pipe 11 for detecting the oxygen content in the pipe, and the sensor is in communication with the oxygen content analyzer 2, or a branch pipe is disposed on the gas outlet pipe 11, through which the gas is directly conveyed to the oxygen content analyzer 2 for analysis.
Specifically, the first flow control unit 6 and the second flow control unit 9 may be flow regulating solenoid valves.
In the embodiment of the present invention, the gas pretreatment unit 7 includes a gas filtration unit and a gas constant unit, the gas filtration unit is used for filtering impurities such as powder, dust, pollen, flotage and the like in the gas, and preventing the impurities from entering the atomization chamber 1 to affect the powder preparation; the gas constant unit is used for keeping the pressure and the concentration of the gas which is introduced into the atomizing chamber 1 constant, so that the oxygen content in the atomizing chamber can be adjusted more quickly and accurately.
Specifically, the gas filtering unit can be a filter screen, a filter element or a filter membrane, as long as impurities in the filtered gas can be filtered.
In the embodiment of the present invention, an outlet of the gas outlet pipeline 11 is connected to a gas recovery unit 12, and the gas recovery unit 12 is configured to recover and process the inert gas flowing out of the atomization chamber 1, so as to avoid pollution and harm to the environment caused by introducing the inert gas into the atmosphere; secondly, can retrieve inert gas, with the qualified back of inert gas recovery processing, carry to gas supply unit 4 to recycle avoids extravagant and practices thrift the cost.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An automatic oxygen-control atomization powder making device is characterized by comprising an atomization chamber, an oxygen content analyzer, a PLC (programmable logic controller) control unit, a gas supply unit, a gas pretreatment unit, a first flow control unit, a second flow control unit and a gas detector, wherein the gas supply unit is connected with an inlet of the gas pretreatment unit through a gas inlet pipeline, and an outlet of the gas pretreatment unit is connected with the bottom of the atomization chamber through a middle pipeline; the PLC control unit is electrically connected with the oxygen content analyzer, the gas detector, the first flow control unit and the second flow control unit, the first flow control unit is arranged on the gas inlet pipeline, and the second flow control unit is arranged on the middle pipeline; the oxygen content analyzer is used for detecting the oxygen content in the gas outlet pipeline, and the gas detector is electrically connected with the gas pretreatment unit.
2. The apparatus of claim 1, wherein the oxygen analyzer is a direct or indirect oxygen analyzer.
3. The apparatus as claimed in claim 1 or 2, wherein a sensor is disposed in the outlet pipe for detecting the oxygen content in the outlet pipe.
4. The apparatus for producing powder by atomizing oxygen-controlled gas as claimed in claim 1 or 2, wherein a branch pipe is provided on said outlet pipe, and the gas is directly sent to the oxygen content analyzer for oxygen content analysis through the branch pipe.
5. The automatic oxygen-controlled atomized powder making device according to claim 1 or 2, wherein the first flow control unit and the second flow control unit are flow regulating solenoid valves.
6. The powder production device by automatic oxygen gas atomization of claim 1, wherein the gas pretreatment unit comprises a gas filtration unit and a gas constant unit, the gas filtration unit is used for filtering impurities in the gas, and the gas constant unit is used for keeping the pressure and concentration of the gas introduced into the atomization chamber constant.
7. The apparatus of claim 6, wherein the gas filtering unit is a filter net, a filter element or a filter membrane.
8. The apparatus of claim 1, wherein the gas detector is capable of detecting the gas pressure and concentration in the gas pre-treatment unit in real time.
9. The apparatus of claim 1 or 2, wherein the outlet of the outlet pipe is connected to a gas recovery unit.
10. The apparatus of claim 9, wherein the gas recovery unit is connected to the gas supply unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123272978.8U CN216680213U (en) | 2021-12-23 | 2021-12-23 | Automatic oxygen-controlled atomization powder making device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123272978.8U CN216680213U (en) | 2021-12-23 | 2021-12-23 | Automatic oxygen-controlled atomization powder making device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216680213U true CN216680213U (en) | 2022-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123272978.8U Active CN216680213U (en) | 2021-12-23 | 2021-12-23 | Automatic oxygen-controlled atomization powder making device |
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| Country | Link |
|---|---|
| CN (1) | CN216680213U (en) |
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2021
- 2021-12-23 CN CN202123272978.8U patent/CN216680213U/en active Active
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Address after: 065500 South District of Gu'an County Industrial Park, Langfang City, Hebei Province Patentee after: AVIC Maite Additive Manufacturing (Gu'an) Co.,Ltd. Address before: 065500 South District of Gu'an County Industrial Park, Langfang City, Hebei Province Patentee before: China Aviation Maite Fanye Technology (Guan) Co.,Ltd. |