Oxidized metal production line

Abstract

The oxidized metal production line comprises a melting furnace, a frequency induction electric furnace, an injection pipe, a process outer pipe, a process inner pipe, an openable door, an exhaust fan, a cooling jacket and a dust remover module, the melting furnace is used for heating, melting and boiling metal materials; the frequency induction electric furnace is connected to the melting furnace; the injection pipe is connected to the frequency induction electric furnace; the process outer pipe is sleeved outside the process inner pipe, and the upper end of the process outer pipe is connected to the dust remover module; the lower end of the process inner pipe is located at a nozzle of the injection pipe, and the upper end is connected to the dust remover module; the openable and closable door is mounted at the position, corresponding to the lower end of the process inner pipe and a nozzle of the injection pipe, of the process outer pipe; the exhaust fan is connected to the dust remover module and is used for providing power for spraying out metal steam at a nozzle of the spraying pipe and power for enabling formed metal oxide steam to flow into the process inner pipe; the cooling jacket is arranged on the outer surface of the process inner pipe and is spaced above a nozzle of the injection pipe; the dust remover module is used for collecting metal oxide powder.

Description

Technical Field

[0001] The present disclosure relates to the field of powder material preparation, and more specifically to a metal oxide production line. Background Art

[0002] Chinese patent document CN217636757U discloses a metal oxide powder production device and system, in which a centrifugal fan provides suction force for a burner, and oxygen required at the nozzle of the burner is supplied to the burner via a heated air supply pipe (i.e., air is supplied). Metal vapor from a molten material furnace and heated by a high-frequency furnace spontaneously combusts with oxygen after coming out of the burner to form metal oxide vapor, and the metal oxide vapor enters a dust collector via an exhaust pipe to collect metal oxide powder formed by cooling the metal oxide vapor.

[0003] In the patent document, in the process of metal oxide vapor entering the dust collector through the exhaust pipe, the metal oxide vapor forms metal oxide powder. This process is carried out under the suction force provided by the centrifugal fan. Since the air supply of oxygen required at the nozzle of the burner is transported through the heated air supply pipe, the air supply is in a heated state. Naturally, the suction force provided by the centrifugal fan will draw the metal oxide vapor through the exhaust pipe to the dust collector with the help of the sucked hot air. In this way, the process of cooling and solidifying the metal oxide vapor to form metal oxide powder will be prolonged. The metal oxide vapor accompanied by a long period of high temperature may produce uncontrollable by-products, which is not conducive to the uniformity control of the particle size of the metal oxide powder obtained by solidification and cooling.

[0004] In addition, the oxygen supply required at the nozzle of the burner requires the installation of a heated air supply pipe and even a filter box, which makes the oxygen supply mechanism complicated.

[0005] In addition, the amount of processing by the high-frequency furnace is relatively limited, which will limit the further expansion of the production scale of metal oxide powder. Utility Model Content

[0006] In view of the problems existing in the background technology, an object of the present disclosure is to provide a metal oxidation production line, which can avoid the metal oxide vapor accompanied by a long period of high temperature and possible generation of uncontrollable by-products.

[0007] Another object of the present disclosure is to provide a metal oxide production line, which is conducive to controlling the uniformity of the particle size of the metal oxide powder obtained by solidification and cooling.

[0008] Another object of the present disclosure is to provide a metal oxide production line that can simplify the structure of oxygen supply.

[0009] Thus, an oxidized metal production line is provided, which includes a melting furnace, a frequency induction furnace, a spray pipe, an outer process pipe, an inner process pipe, an openable and closable door, an exhaust fan, a cooling jacket, and a dust collector module; the melting furnace is used to heat and melt the metal material; the frequency induction furnace is connected to the melting furnace, and the frequency induction furnace is used to heat the metal vapor that boils out of the liquid surface of the molten metal in the melting furnace and enters the frequency induction furnace; the spray pipe is connected to the frequency induction furnace, and the spray pipe is used to spray the metal vapor heated by the frequency induction furnace coming out of the frequency induction furnace; the outer process pipe is sleeved outside the inner process pipe, and the upper end of the outer process pipe is connected to the dust collector module; the lower end of the inner process pipe is located at the nozzle of the spray pipe, and the upper end of the inner process pipe is connected to the dust collector module; the openable and closable door is installed at the position of the outer process pipe corresponding to the lower end of the inner process pipe and the nozzle of the spray pipe, The opening and closing door is used to allow air from the external environment to enter the part of the process outer tube and the lower end of the process inner tube when it is opened, so that the oxygen in the air and the metal vapor ejected from the nozzle of the injection pipe spontaneously ignite to form metal oxide vapor; the exhaust fan is connected to the dust collector module, and the exhaust fan is used to draw air to the nozzle of the injection pipe through the dust collector module and the process inner tube to provide power for the metal vapor to be ejected at the nozzle of the injection pipe and the formed metal oxide vapor to be sucked and flow into the process inner tube; the cooling jacket is arranged on the outer surface of the process inner tube and spaced above the nozzle of the injection pipe, and the cooling jacket is used to cool and solidify the metal oxide vapor formed at the nozzle of the injection pipe into metal oxide powder when it is sucked and flows along the flowing process inner tube to the dust collector module; the dust collector module is used to collect the metal oxide powder flowing in through the process inner tube.

[0010] The beneficial effects of the present disclosure are as follows.

[0011] Compared with the process of cooling and solidifying metal oxide vapor to form metal oxide powder in the background patent literature, in the metal oxide production line according to the present disclosure, a cooling jacket is arranged on the outer surface of the process inner tube and spaced above the nozzle of the injection tube, so that the metal oxide vapor flowing through the process inner tube is cooled and solidified into metal oxide powder at the cooling jacket. In this way, through the forced cooling of the cooling jacket, it is possible to avoid the metal oxide vapor being accompanied by a long period of high temperature and possibly producing uncontrollable by-products, and it is also beneficial to control the uniformity of the particle size of the metal oxide powder obtained by solidification and cooling.

[0012] Compared with the oxygen supply mechanism of the background patent literature through heating the air supply pipe or even the filter box, in the metal oxide production line according to the present disclosure, the openable and closable door installed on the process outer pipe is opened to allow air from the external environment to enter the part of the process outer pipe corresponding to the lower end of the process inner pipe and the nozzle of the injection pipe and the lower end of the process inner pipe, thereby greatly simplifying the oxygen supply structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a layout diagram of a metal oxide production line according to the present disclosure.

[0014] The reference numerals are described as follows:

[0015] 1000 Metal Oxidation Production Line 191 First Dust Collector

[0016] 11 Melting furnace 192 Second dust collector

[0017] 12 frequency induction furnace 193 third dust collector

[0018] 13 injection pipe 20 screw conveyor

[0019] 14 process outer tube 21 homogenizer

[0020] 15 process inner tube 22 packaging machine

[0021] 16 Openable and closable door 23 Nitrogen pipeline

[0022] 17 exhaust fan 24 waste collector

[0023] 18 cooling jacket 25 crane

[0024] 19 dust collector module 26 automatic feeder DETAILED DESCRIPTION

[0025] The accompanying drawings show embodiments of the present disclosure, and it will be understood that the disclosed embodiments are merely examples of the present disclosure, and the present disclosure can be implemented in various forms. Therefore, the specific details disclosed herein should not be interpreted as limiting, but merely as the basis for the claims and as a representative basis for teaching ordinary technicians in the field to implement the present disclosure in various ways.

[0026] In the description of the present disclosure, unless otherwise specified, the terms “first”, “second”, “third”, etc. are only used for the purpose of description and component identification and should not be understood as relative importance and mutual relationship.

[0027] Reference Figure 1 According to the present disclosure, the oxidized metal production line 1000 includes a melting furnace 11, a frequency induction furnace 12, a spray pipe 13, a process outer pipe 14, a process inner pipe 15, an openable and closable door 16, an exhaust fan 17, a cooling jacket 18, and a dust collector module 19.

[0028] The melting furnace 11 is used to heat and melt the metal material; the frequency induction furnace 12 is connected to the melting furnace 11, and the frequency induction furnace 12 is used to heat the metal vapor that boils out of the liquid surface of the metal melt in the melting furnace 11 and enters the frequency induction furnace 12; the injection pipe 13 is connected to the frequency induction furnace 12, and the injection pipe 13 is used to eject the metal vapor that comes out of the frequency induction furnace 12 and is heated by the frequency induction furnace 12; the process outer tube 14 is arranged outside the process inner tube 15, and the upper end of the process outer tube 14 is connected to the dust collector module 19; the lower end of the process inner tube 15 is located at the nozzle of the injection pipe 13, and the upper end of the process inner tube 15 is connected to the dust collector module 19; the openable and closable door 16 is installed at the position of the process outer tube 14 corresponding to the lower end of the process inner tube 15 and the nozzle of the injection pipe 13, and the openable and closable door 16 is used to allow the air of the external environment to enter the position and the process outer tube 14 when it is opened. The oxygen in the lower end of the process inner tube 15 and then in the air spontaneously combusts with the metal vapor ejected from the nozzle of the injection pipe 13 to form metal oxide vapor; the exhaust fan 17 is connected to the dust collector module 19, and the exhaust fan 17 is used to exhaust air to the nozzle of the injection pipe 13 through the dust collector module 19 and the process inner tube 15 to provide power for the metal vapor to be ejected at the nozzle of the injection pipe 13 and the formed metal oxide vapor to be sucked and flow into the process inner tube 15; the cooling jacket 18 is arranged on the outer surface of the process inner tube 15 and spaced above the nozzle of the injection pipe 13. The cooling jacket 18 is used for the metal oxide vapor formed at the nozzle of the injection pipe 13 to be sucked and flow along the flowing process inner tube 15 to the dust collector module 19, and then cooled and solidified into metal oxide powder at the cooling jacket 18; the dust collector module 19 is used to collect the metal oxide powder flowing in through the process inner tube 15.

[0029] Compared with the process of cooling and solidifying metal oxide vapor to form metal oxide powder in the background patent literature, in the oxidized metal production line 1000 according to the present disclosure, a cooling jacket 18 is arranged on the outer surface of the process inner tube 15 and spaced above the nozzle of the injection tube 13. The metal oxide vapor flowing through the process inner tube 15 is cooled and solidified at the cooling jacket 18 to form metal oxide powder. In this way, the forced cooling of the cooling jacket 18 can avoid the metal oxide vapor from being accompanied by a long period of high temperature and possibly producing uncontrollable by-products, and is also beneficial to controlling the uniformity of the particle size of the metal oxide powder obtained by solidification and cooling.

[0030] Compared with the oxygen supply mechanism of the background patent literature through heating the air supply pipe or even the filter box, in the oxidized metal production line 1000 according to the present disclosure, the openable and closable door 16 installed on the process outer tube 14 is opened to allow air from the external environment to enter the part of the process outer tube 14 corresponding to the lower end of the process inner tube 15 and the nozzle of the injection pipe 13 and the lower end of the process inner tube 15, thereby greatly simplifying the oxygen supply structure.

[0031] In one example, the frequency induction furnace 12 is a medium frequency furnace. Compared with the high frequency furnace used in the background patent literature, the use of the medium frequency furnace is conducive to improving the production scale of the metal oxide powder.

[0032] like Figure 1 As shown, in one example, the nozzle of the injection pipe 13 is inserted into the lower end of the process inner tube 15, and the nozzle of the injection pipe 13 is spaced apart from the inner wall of the lower end of the process inner tube 15 to form a gap for air to flow in. As a result, the metal vapor coming out of the nozzle of the injection pipe 13 is directly in the process inner tube 15 under the suction force formed by the exhaust fan 17 through the dust collector module 19 and the process inner tube 15, and the metal vapor reacts with the oxygen in the air entering through the gap to form the metal oxide vapor is also directly in the process inner tube 15, avoiding the metal vapor and the metal oxide vapor from being outside the lower end of the process inner tube 15, thereby increasing the amount of metal oxide powder formed by cooling and solidification through the cooling jacket 18 and the amount of metal oxide powder collected by the dust collector module 19.

[0033] like Figure 1 As shown, in one example, the size of the openable and closable door 16 is set so that the radial projection of the opening formed when the openable and closable door 16 is opened covers the lower end of the process inner tube 15 and the nozzle of the injection tube 13. Therefore, when the openable and closable door 16 is opened, a sufficient amount of air enters the external environment at the portion of the process outer tube 14 and the lower end of the process inner tube 15, so that the metal vapor reacts more fully and quickly with the oxygen in the air, thereby improving the yield of the metal oxide powder.

[0034] exist Figure 1 In the example shown, the cooling jacket 18 is located higher than the operable door 16 , thereby preventing the air entering through the opened operable door 16 from affecting the temperature of the cooling jacket 18 .

[0035] like Figure 1 As shown, in one example, the dust collector module 19 includes a first dust collector 191; the first dust collector 191 is connected to the process inner pipe 15. Specifically, the first dust collector 191 is a bag dust collector with a rotatable baffle. After a certain weight of metal oxide powder accumulates on the rotatable baffle, the metal oxide powder is unbalanced and falls to the lower end of the first dust collector 191.

[0036] Furthermore, if Figure 1As shown, the metal oxide production line 1000 also includes a screw conveyor 20, a homogenizer 21 and a packaging machine 22. The screw conveyor 20 is connected to the bottom end of the first dust collector 191, and the screw conveyor 20 is used to receive the metal oxide powder discharged from the first dust collector 191 and convey it to the homogenizer 21; the homogenizer 21 is connected to the screw conveyor 20, and the homogenizer 21 is used to receive the metal oxide powder conveyed by the screw conveyor 20 for stirring and drying and conveying the dried metal oxide powder to the packaging machine 22; the packaging machine 22 is used to receive (for example, via an electric butterfly valve provided between the packaging machine 22 and the homogenizer 21) the dried metal oxide powder conveyed by the homogenizer 21 and package it. Through the provision of the screw conveyor 20, the homogenizer 21 and the packaging machine 22, the metal oxide powder can be produced in a closed and continuous manner from the first dust collector 191 to the packaging machine 22, thereby ensuring the stability and consistency of the quality of the packaged metal oxide powder. For example, the screw conveyor 20 is connected to the bottom end of the first dust collector 191 via a vacuum butterfly valve and a high temperature resistant flexible connection in sequence.

[0037] Furthermore, if Figure 1 As shown, the metal oxide production line 1000 also includes a nitrogen pipeline 23, which is connected to the screw conveyor 20 and the homogenizer 21. The nitrogen pipeline 23 is used to provide nitrogen to the screw conveyor 20, the homogenizer 21 and the packaging machine 22, and to replace the screw conveyor 20, the homogenizer 21 and the packaging machine 22 with nitrogen before the metal oxide production line 1000 works, and to replace the frequency induction furnace 12, the melting furnace 11, the injection pipe 13, the process outer pipe 14, the process inner pipe 15, and the dust collector module 19 with nitrogen via the dust collector module 19 (specifically the first dust collector 191), thereby achieving nitrogen replacement of the connected paths of the metal oxide production line 1000, and providing nitrogen protection to the screw conveyor 20, the homogenizer 21 and the packaging machine 22 when the metal oxide powder needs to be packaged, so as to ensure the stability of the quality of the finally packaged metal oxide powder. The nitrogen replacement process can be detected by an oxygen meter.

[0038] like Figure 1 As shown, in one example, the dust collector module 19 further includes a second dust collector 192, which is connected between the exhaust fan 17 and the first dust collector 191. The second dust collector 192 is used to assist in collecting the metal oxide powder escaping from the first dust collector 191 to improve the yield of the metal oxide powder. Similarly, for example, the second dust collector 192 is a bag filter provided with a rotatable baffle. The rotatable baffle is unbalanced after a certain weight of metal oxide powder accumulates on it, causing the metal oxide powder to fall to the lower end of the second dust collector 192.

[0039] like Figure 1As shown, in one example, the dust collector module 19 also includes a third dust collector 193, which is directly connected to the process outer tube 14, and the third dust collector 193 is used to collect the metal oxide powder formed by the cooling and solidification of the metal oxide vapor and the metal powder formed by the cooling and solidification of the metal vapor flowing through the gap between the process outer tube 14 and the process inner tube 15 and the passage connecting the third dust collector 193 and the process outer tube 14, for subsequent recycling. Similarly, for example, the third dust collector 193 is a bag filter with a rotatable baffle. The rotatable baffle is unbalanced after the metal oxide powder and the metal powder accumulate a certain weight thereon, causing the metal oxide powder to fall to the lower end of the third dust collector 193.

[0040] like Figure 1 As shown, in one example, the oxidized metal production line 1000 further includes a waste collector 24. The waste collector 24 is sealed and disposed at the bottom end of the process outer tube 14, and the waste collector 24 is used to collect metal droplets, metal oxide droplets, metal oxide powder, and metal powder dropped from the nozzle of the injection tube 13. For example, the waste collector 24 is a screw conveyor.

[0041] like Figure 1 As shown, in one example, the metal oxide production line 1000 further includes a crane 25 and an automatic loader 26. The crane 25 is used to lift metal materials; the automatic loader 26 is used to receive the metal materials lifted by the crane 25 and automatically supply the metal materials to the melting furnace 11.

[0042] The above detailed description is used to describe multiple exemplary embodiments, but this document is not intended to be limited to the explicitly disclosed combinations. Therefore, unless otherwise stated, the various features disclosed herein can be combined together to form multiple additional combinations that are not shown for the sake of simplicity.

Claims

1. A metal oxide production line, characterized in that: The oxidized metal production line (1000) comprises a melting furnace (11), a frequency induction furnace (12), an injection pipe (13), a process outer pipe (14), a process inner pipe (15), an openable and closable door (16), an exhaust fan (17), a cooling jacket (18), and a dust collector module (19); The melting furnace (11) is used to heat and melt the metal material to make it boil; The frequency induction furnace (12) is connected to the melting furnace (11), and the frequency induction furnace (12) is used to heat the metal vapor that boils out of the liquid surface of the metal melt in the melting furnace (11) and enters the frequency induction furnace (12); The injection pipe (13) is connected to the frequency induction furnace (12), and the injection pipe (13) is used to eject the metal vapor heated by the frequency induction furnace (12) from the frequency induction furnace (12); The process outer tube (14) is sleeved outside the process inner tube (15), and the upper end of the process outer tube (14) is connected to the dust collector module (19); The lower end of the process inner tube (15) is located at the nozzle of the injection tube (13), and the upper end of the process inner tube (15) is connected to the dust collector module (19); The openable and closable door (16) is installed at a position of the process outer tube (14) corresponding to the lower end of the process inner tube (15) and the nozzle of the injection tube (13). The openable and closable door (16) is used to allow air from the external environment to enter the position of the process outer tube (14) and the lower end of the process inner tube (15) when it is opened, so that oxygen in the air and metal vapor ejected from the nozzle of the injection tube (13) spontaneously combust to form metal oxide vapor; The exhaust fan (17) is connected to the dust collector module (19), and is used to exhaust air to the nozzle of the injection pipe (13) through the dust collector module (19) and the process inner pipe (15) to provide power for the metal vapor to be ejected at the nozzle of the injection pipe (13) and for the metal oxide vapor to be sucked and flow into the process inner pipe (15); A cooling jacket (18) is arranged on the outer surface of the process inner tube (15) and is spaced above the nozzle of the injection tube (13). The cooling jacket (18) is used to cool and solidify the metal oxide vapor formed at the nozzle of the injection tube (13) into metal oxide powder at the cooling jacket (18) when the metal oxide vapor is sucked and flows along the flow process inner tube (15) toward the dust collector module (19). The dust collector module (19) is used to collect the metal oxide powder flowing in through the process inner pipe (15).

2. The metal oxide production line according to claim 1, characterized in that: The frequency induction furnace (12) is a medium frequency furnace.

3. The metal oxide production line according to claim 1, characterized in that: The nozzle of the injection pipe (13) is inserted into the lower end of the process inner pipe (15), and the nozzle of the injection pipe (13) is spaced apart from the inner wall of the lower end of the process inner pipe (15) to form a gap for air to flow in.

4. The metal oxide production line according to claim 1, characterized in that: The size of the openable and closable door (16) is set so that the radial projection of the opening formed when the openable and closable door (16) is opened covers the lower end of the process inner tube (15) and the nozzle of the injection tube (13); The cooling jacket (18) is located higher than the openable and closable door (16).

5. The metal oxide production line according to claim 1, characterized in that: The dust collector module (19) includes a first dust collector (191); The first dust collector (191) is connected to the process inner pipe (15).

6. The metal oxide production line according to claim 5, characterized in that: The metal oxide production line (1000) further includes a screw conveyor (20), a homogenizer (21) and a packaging machine (22); The screw conveyor (20) is connected to the bottom end of the first dust collector (191), and the screw conveyor (20) is used to receive the metal oxide powder discharged from the first dust collector (191) and convey it to the homogenizer (21); The homogenizer (21) is connected to the screw conveyor (20), and the homogenizer (21) is used to receive the metal oxide powder conveyed by the screw conveyor (20) to stir and dry it, and to convey the dried metal oxide powder to the packaging machine (22); The packaging machine (22) is used to receive the dried metal oxide powder delivered by the homogenizer (21) and pack it.

7. The metal oxide production line according to claim 6, characterized in that: The oxidized metal production line (1000) further includes a nitrogen pipeline (23), The nitrogen pipeline (23) is connected to the screw conveyor (20) and the homogenizer (21); The nitrogen pipeline (23) is used to supply nitrogen to the screw conveyor (20), the homogenizer (21) and the packaging machine (22), to replace the screw conveyor (20), the homogenizer (21) and the packaging machine (22) with nitrogen before the metal oxide production line (1000) is operated, and to replace the frequency induction furnace (12), the melting furnace (11), the injection pipe (13), the process outer pipe (14), the process inner pipe (15) and the dust collector module (19) with nitrogen via the dust collector module (19), thereby achieving nitrogen replacement of the connected paths of the metal oxide production line (1000), and providing nitrogen protection for the screw conveyor (20), the homogenizer (21) and the packaging machine (22) when it is necessary to package the metal oxide powder.

8. The metal oxide production line according to claim 5, characterized in that: The dust collector module (19) further comprises a second dust collector (192), The second dust collector (192) is connected between the exhaust fan (17) and the first dust collector (191).

9. The metal oxide production line according to claim 5, characterized in that: The dust collector module (19) further comprises a third dust collector (193), The third dust collector (193) is directly connected to the process outer pipe (14). The third dust collector (193) is used to collect metal oxide powder formed by cooling and solidifying metal oxide vapor and metal powder formed by cooling and solidifying metal vapor that flows through the gap between the process outer tube (14) and the process inner tube (15) and the passage connecting the third dust collector (193) and the process outer tube (14).

10. The metal oxide production line according to claim 1, characterized in that: The oxidized metal production line (1000) further comprises a waste collector (24), The waste collector (24) is sealed and arranged at the bottom end of the process outer tube (14), and is used to collect metal droplets, metal oxide droplets, metal oxide powder and metal powder dropped from the nozzle of the injection tube (13).

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