High temperature oxidation powderising unit

Abstract

The present invention relates to a high-temperature oxidation pulverization apparatus, and the technical problem to be solved is to provide a high-temperature oxidation pulverization apparatus capable of effectively pulverizing a stacked sample while it is exposed to a high-temperature atmosphere and a specific gas atmosphere. To this end, the present invention discloses a high-temperature oxidation pulverization apparatus comprising: a reaction chamber in the shape of a cuboid, having an open front, an internal space, and an oxidizing agent inlet at the top; a heater installed inside the reaction chamber to heat the interior; a circulation fan member installed inside the reaction chamber to circulate heated air; a rack frame installed inside the reaction chamber; a shelf slidably coupled to the rack frame and recovering oxide powder that is oxidized and falls from a pellet; an impact providing unit coupled to the shelf and providing an impact to the shelf in a horizontal direction; and a door coupled to the open front of the reaction chamber and opening and closing.

Description

Technology Field

[0001] The present invention relates to a high-temperature oxidation powdering device. Background Technology

[0002] A high-temperature oxidation pulverization device is a device that converts materials into powder form through high-temperature oxidation. This device is used to obtain oxide powders by processing various materials, such as metals and ceramics, in a high-temperature environment. The main principle is to oxidize the surface of the material through a high-temperature oxidation reaction and produce the oxidized material in the form of fine powder.

[0003] The information described above disclosed in the background technology of this invention is intended only to enhance understanding of the background of the present invention and may therefore include information that does not constitute prior art. The problem to be solved

[0004] The problem to be solved by the present invention is to provide a high-temperature oxidation pulverization apparatus capable of effectively pulverizing a stacked sample while it is exposed to a high-temperature atmosphere and a specific gas atmosphere. means of solving the problem

[0005] The high-temperature oxidation powdering device according to the present invention may include: a reaction chamber in the shape of a cuboid, having an open front, an internal space, and an oxidizing agent inlet at the top; a heater installed inside the reaction chamber to heat the interior; a circulation fan member installed inside the reaction chamber to circulate heated air; a rack frame installed inside the reaction chamber; a shelf slidably coupled to the rack frame and recovering oxide powder that is oxidized and falls from a pellet; an impact providing member coupled to the shelf and providing an impact to the shelf in a horizontal direction; and a door coupled to the open front of the reaction chamber and opening and closing.

[0006] In one or more embodiments, the rack frame may include a plurality of horizontal frames spaced apart in a vertical direction; and a plurality of vertical frames coupled vertically to the plurality of horizontal frames, and the shelf may be slidably coupled to each of the plurality of horizontal frames.

[0007] In one or more embodiments, the shelf may include a tray for receiving oxide powder that is oxidized and falls from the pellet; a mesh net coupled to the tray; and a plurality of rollers coupled to the bottom of the tray and sliding on the rack frame.

[0008] In one or more embodiments, the shock providing member may include a vertical link coupled to the rear of the shelf; a horizontal link coupled to the vertical link and penetrating the rear of the reaction chamber; and an air cylinder installed on the rear outer side of the reaction chamber and coupled to the horizontal link.

[0009] In one or more embodiments, the open front of the reaction chamber may include a front surface of the reaction chamber and a reaction chamber stepped surface recessed inwardly from the front surface of the reaction chamber, and the door may include a door stepped surface that is in close contact with the front surface of the reaction chamber through a high-temperature ceramic gasket and a door rear surface that protrudes from the door stepped surface and is in close contact with the reaction chamber stepped surface through a silicone gasket. Effects of the invention

[0010] The present invention provides a high-temperature oxidation pulverization apparatus capable of effectively pulverizing a stacked sample while it is exposed to a high-temperature atmosphere and a specific gas atmosphere. Brief explanation of the drawing

[0011] FIG. 1 is a photograph illustrating an exemplary high-temperature oxidation pulverization apparatus according to the present invention. FIG. 2 is a side view illustrating an exemplary high-temperature oxidation powdering apparatus according to the present invention. FIG. 3 is a partial cross-sectional view illustrating an exemplary high-temperature oxidation pulverization apparatus according to the present invention. FIG. 4 is a side cross-sectional view illustrating an exemplary high-temperature oxidation powdering apparatus according to the present invention. FIG. 5 is a partial cross-sectional view illustrating an exemplary high-temperature oxidation pulverization apparatus according to the present invention. Figure 6 is a photograph showing a heater in an exemplary high-temperature oxidation powdering apparatus according to the present invention. Figure 7 is a photograph showing a mesh screen of an exemplary high-temperature oxidation powdering apparatus according to the present invention. Specific details for implementing the invention

[0012] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0013] The present inventions are provided to more fully explain the invention to those skilled in the art, and the following examples may be modified in various different forms, and the scope of the invention is not limited to the following examples. Rather, these examples are provided to make the disclosure more faithful and complete and to fully convey the spirit of the invention to those skilled in the art.

[0014] Additionally, in the drawings below, the thickness or size of each layer is exaggerated for convenience and clarity of explanation, and like reference numerals in the drawings refer to like elements. As used herein, the term "and / or" includes any one of the listed items and all combinations of one or more thereof. Furthermore, in this specification, the meaning of "connected" refers not only to cases where Member A and Member B are directly connected, but also to cases where Member C is interposed between Member A and Member B so that Member A and Member B are indirectly connected.

[0015] The terms used herein are for describing specific embodiments and are not intended to limit the invention. As used herein, the singular form may include the plural form unless the context clearly indicates otherwise. Additionally, as used herein, "comprise, include" and / or "comprising, including" specify the presence of the mentioned features, numbers, steps, actions, parts, elements, and / or groups thereof, and do not exclude the presence or addition of one or more other features, numbers, actions, parts, elements, and / or groups.

[0016] Although terms such as "first," "second," etc. are used in this specification to describe various components, parts, regions, layers, and / or parts, it is obvious that these components, parts, regions, layers, and / or parts should not be limited by these terms. These terms are used solely to distinguish one component, part, region, layer, or part from another region, layer, or part. Accordingly, the first component, part, region, layer, or part described below may refer to the second component, part, region, layer, or part without departing from the teachings of the present invention.

[0017] Spatial terms such as "beneath," "below," "lower," "above," and "upper" may be used to facilitate understanding of one element or feature depicted in the drawings and another element or feature. These spatial terms are intended to facilitate understanding of the invention according to various process or usage conditions of the invention and are not intended to limit the invention. For example, if an element or feature in the drawings is inverted, an element or feature described as "beneath" or "below" becomes "upper" or "on top." Therefore, "below" is a concept that encompasses "upper" or "below."

[0018] Additionally, the control unit (controller) and / or other related devices or components according to the present invention may be implemented using any suitable hardware, firmware (e.g., application-specific semiconductor), software, or a suitable combination of software, firmware, and hardware. For example, various components of the control unit (controller) and / or other related devices or components according to the present invention may be formed on a single integrated circuit chip or on separate integrated circuit chips. Additionally, various components of the control unit (controller) may be implemented on a flexible printed circuit film, a tape carrier package, a printed circuit board, or on the same substrate as the control unit (controller). Additionally, various components of the control unit (controller) may be processes or threads running on one or more processors in one or more computing devices, which may execute computer program instructions and interact with other components to perform the various functions mentioned below. Computer program instructions are stored in memory that can be executed on a computing device using a standard memory device, such as, for example, random access memory. Computer program instructions may also be stored on other non-transitory computer-readable media, such as, for example, CD-ROMs, flash drives, etc. Furthermore, those skilled in the art relating to the present invention should recognize that the functions of various computing devices may be combined with one another, integrated into a single computing device, or the functions of a specific computing device may be distributed across one or more other computing devices without departing from exemplary embodiments of the present invention.

[0019] FIG. 1 is a photograph illustrating an exemplary high-temperature oxidation powdering device (100) according to the present invention, FIG. 2 is a side view illustrating an exemplary high-temperature oxidation powdering device (100) according to the present invention, FIG. 3 is a partial front cross-sectional view illustrating an exemplary high-temperature oxidation powdering device (100) according to the present invention, FIG. 4 is a side cross-sectional view illustrating an exemplary high-temperature oxidation powdering device (100) according to the present invention, FIG. 5 is a partial plan cross-sectional view illustrating an exemplary high-temperature oxidation powdering device (100) according to the present invention, FIG. 6 is a photograph illustrating a heater (120) of an exemplary high-temperature oxidation powdering device (100) according to the present invention, and FIG. 7 is a photograph illustrating a mesh net (152) of an exemplary high-temperature oxidation powdering device (100) according to the present invention.

[0020] As illustrated in FIGS. 1 to 7, an exemplary high-temperature oxidation powdering device (100) according to the present invention may include a reaction chamber (110), a heater (120), a circulation fan member (130), a rack frame (140), a shelf (150), an impact providing unit (160), a door (170), and a control panel (180).

[0021] The reaction chamber (110) may be in the shape of a cuboid with an open front, a square space inside, and an oxidizing agent inlet (111) at the top. In one or more embodiments, the oxidizing agent may include oxygen or air. In one or more embodiments, the reaction chamber (110) may further include a plurality of legs (112) coupled to the bottom and a roller (113) coupled to the legs (112), so that the reaction chamber (110) can be easily moved horizontally according to the user's intention.

[0022] In one or more embodiments, the reaction chamber (110) may be made of stainless steel, which is highly corrosion-resistant and stable at high temperatures; a nickel alloy, which is strong at high temperatures and has good fire resistance and is suitable for chemical reactions; a tungsten and molybdenum alloy, which is stable at very high temperatures and has good fire resistance; or a ceramic material, which has good fire resistance and corrosion resistance and high thermal conductivity, and is suitable for a specific application.

[0023] A heater (120) may be installed inside the reaction chamber (110) to heat the interior. In one or more embodiments, the heater (120) may heat the interior temperature of the reaction chamber (110) to approximately 50°C to approximately 650°C. In one or more embodiments, a plurality of heaters (120) may be installed on the left and right sides of the reaction chamber (110), respectively. In one or more embodiments, the heater (120) may extend vertically in a straight line from the top to the bottom inside the reaction chamber (110).

[0024] In one or more embodiments, the heater (120) may include a cartridge heater, which is a resistive element embedded in a metal tube and provides reliable and uniform heat in a high-temperature environment and is typically capable of supporting temperatures from 500°C to 800°C; a ceramic heater made of a ceramic material that has high heat resistance and efficiency and can provide rapid and uniform heating using radiant heat and can heat up to 650°C or higher; a band heater used for heating cylindrical surfaces, which is particularly suitable for heating metal or plastic parts and is capable of supporting temperatures from 50°C to 650°C or higher; or a mineral insulation heater made of a metal material with a mineral insulator, which is highly reliable even at high temperatures and can heat up to 1000°C.

[0025] A circulation fan member (130) is installed inside the reaction chamber (110) to allow heated air to circulate inside the reaction chamber (110). In one or more embodiments, the circulation fan member (130) may be installed on the lower side of the reaction chamber (110). In one or more embodiments, the circulation fan member (130) may include a motor (131) installed on the lower side outside the reaction chamber (110), a rotating shaft (132) extending from the motor (131) and penetrating the lower side of the reaction chamber (110), and a fan (133) coupled to the rotating shaft (132) and rotating on the lower side inside the reaction chamber (110) to forcibly circulate internal air.

[0026] In one or more embodiments, the fan (133) may be made of nickel alloy (Inconel) or stainless steel to prevent oxidation and deformation at high temperatures. Additionally, in one or more embodiments, the bearing system interposed between the rotating shaft (132) and the reaction chamber (110) must also be suitable for high temperatures, and a special lubricant or air cooling system may be applied to withstand high temperatures, and may include, for example, a ceramic bearing or a special high-temperature lubricant.

[0027] The rack frame (140) can be installed and fixed inside the reaction chamber (110). The rack frame (140) may include a plurality of horizontal frames (141) and a plurality of vertical frames (142). The plurality of horizontal frames (141) may be spaced apart in the vertical direction (up and down direction) and arranged in the horizontal direction. The plurality of vertical frames (142) may be connected vertically to the plurality of horizontal frames (141) and arranged in the vertical direction. In one or more embodiments, the rack frame (140) may also include a nickel alloy (Inconel) or stainless steel to prevent oxidation and deformation at high temperatures.

[0028] The shelf (150) is slidably coupled to the rack frame (140) and can recover and receive oxide powder that is oxidized and falls from the pellets.

[0029] In one or more embodiments, a shelf (150) may be slidably coupled to each of a plurality of horizontal frames (141). In one or more embodiments, the horizontal frames (141) may be a three-tiered structure spaced apart in the vertical direction, and accordingly, the shelf (150) may be slidably coupled to each of the three horizontal frames (141), so that there may also be three shelves (150).

[0030] Each shelf (150) may include a tray (151), a mesh net (152), and a roller (153).

[0031] The tray (151) is generally in the form of a basket with an open top, which can receive oxide powder that is oxidized and falls from the pellets.

[0032] The mesh net (152) can be attached to the tray (151) and can be spaced apart from the bottom of the tray (151).

[0033] In one or more embodiments, the mesh (152) may include a single-stage or two-stage structure. In one or more embodiments, a single-stage mesh (152) may be installed on the upper side of the tray (151), and pellets may be stacked on this single-stage mesh (152). The hole size of the single-stage mesh (152) may be smaller than the pellet size. Accordingly, when the surface of the pellet is oxidized and then subjected to an external impact (e.g., vibration), the oxidized powder from the surface of the pellet may fall downward through the single-stage mesh (152). In one or more embodiments, a two-stage mesh (152) may be installed below the single-stage mesh (152). In one or more embodiments, the hole size of the two-stage mesh (152) may be smaller than the hole size of the single-stage mesh (152). Accordingly, in a manner similar to the operation described above, a smaller size oxide powder can fall through the two-stage mesh screen (152) and be received in the tray (151).

[0034] A plurality of rotatable rollers (153) are installed on the lower side of each tray (151), which causes the tray (151) to slide horizontally on the rack frame (140) due to external impact.

[0035] In one or more embodiments, the shelf (150) may also include a nickel alloy (Inconel) or stainless steel to prevent oxidation and deformation at high temperatures.

[0036] The shock providing unit (160) is coupled to the shelf (150) and can provide shock to the shelf (150) in a horizontal direction. The shock providing unit (160) may include a vertical link (161), a horizontal link (162), and an air cylinder (163).

[0037] In one or more embodiments, the vertical link (161) has a length in the vertical direction and can be connected to each of the three shelves (150). In one or more embodiments, one vertical link (161) can be connected to each of the three shelves (150). The horizontal link (162) can be connected to the vertical link (161) and can penetrate the rear of the reaction chamber (110). In one or more embodiments, the horizontal link (162) can be connected approximately in the center of the vertical link (161) and can penetrate and extend into the rear of the reaction chamber (110). An air cylinder (163) can be installed on the rear outer side of the reaction chamber (110) and connected to the horizontal link (162).

[0038] In one or more embodiments, the vertical link (161) and the horizontal link (162) may also include a nickel alloy (Inconel) or stainless steel to prevent oxidation and deformation at high temperatures.

[0039] In one or more embodiments, the bushing system interposed between the horizontal link (162) and the reaction chamber (110) must also be suitable for high temperatures, and may include, for example, graphite which can operate stably in an environment of 650°C or higher as a representative material that provides self-lubricating properties at high temperatures; ceramic which provides very high heat resistance, can withstand extreme high temperatures of 1000°C or higher, has excellent thermal shock resistance, and has excellent wear resistance and corrosion resistance; nickel alloy (Inconel, Hastelloy, etc.) which provides excellent mechanical strength and corrosion resistance at high temperatures, maintains oxidation resistance and corrosion resistance at temperatures of 650°C or higher, and maintains strength even at extreme temperatures; molybdenum disulfide (MoS2) coated bushings which are coated on metal bushings in high-temperature environments and have excellent self-lubricating properties as a coating material that exhibits excellent lubrication performance at high temperatures; or specially treated bronze bushings which are widely used at high temperatures of 650°C or lower and can perform self-lubricating functions.

[0040] In this way, the horizontal link (162) and the vertical link (161) can be rapidly moved or vibrated in the forward and backward directions (i.e., horizontal directions) by the operation of the air cylinder (163). Accordingly, a plurality of shelves (150) coupled to the vertical link (161) can be rapidly moved or vibrated in the forward and backward directions (i.e., horizontal directions). In this manner, impact is applied to the pellets stacked on the mesh net (152) of the shelves (150), and the oxide powder formed on the surface of the pellets can fall downwards.

[0041] The door (170) can be opened and closed by being connected to the open front of the reaction chamber (110).

[0042] To this end, the open front of the reaction chamber (110) may include a reaction chamber front (114) and a reaction chamber stepped surface (115) recessed inward from the reaction chamber front (114).

[0043] Additionally, the door (170) may include a door step surface (172) that is in close contact with the front of the reaction chamber (114) via a high-temperature ceramic gasket (171), and a door rear surface (174) that protrudes from the door step surface (172) and is in close contact with the reaction chamber step surface (115) via a silicone gasket (173). Here, gas leakage may be prevented by the silicone gasket (173). In one or more embodiments, the installation positions of the high-temperature ceramic gasket (171) and the silicone gasket (173) may be interchanged. In one or more embodiments, the door (170) may include a double structure. The material of the door may be similar or identical to the material of the reaction chamber (110).

[0044] A control panel (180) may be installed on one side of the reaction chamber (110) and may control the heater (120), the circulation fan member (130), and the shock providing member (160) of the high-temperature oxidation powdering device (100).

[0045] For example, the control panel (180) operates the heater (120) to raise the temperature of the reaction chamber (110) to a set temperature and also controls the circulation fan member (130) to circulate the internal air of the reaction chamber (110). Furthermore, the control panel (180) controls the shock supply unit (160) to control the vibration period and / or vibration intensity of the vertical link (161) and the horizontal link (162).

[0046] Thus, an exemplary high-temperature oxidation powdering device (100) according to the present invention comprises a high-temperature heating device for maintaining a high temperature, a reaction chamber which is a space where an oxidation reaction takes place, an oxidizing agent supply device for supplying oxygen or other oxidizing agents required for oxidation, and a powder recovery device for collecting and purifying the generated powder. Accordingly, the present invention provides a high-temperature environment to heat a material such as pellets to a high temperature (e.g., usually several hundred degrees), and the material reacts with oxygen due to the high temperature to oxidize; through this reaction, a metal or other material is converted into an oxide, and the oxidized material falls in the form of powder as it cools. The size and shape of the powder formed at this time are determined by the temperature, oxidation rate, cooling method, etc.

[0047] The exemplary high-temperature oxidation powdering device (100) according to the present invention can be used in various application fields, for example, as follows.

[0048] Metal powder manufacturing: Metal oxides are ground into fine powder and used in various applications. For example, it is used in 3D printing or the manufacture of high-performance materials.

[0049] Catalyst preparation: Oxide powder used as a catalyst can be produced through high-temperature oxidation.

[0050] Nanomaterial Production: High-temperature oxidative pulverization can also be used to manufacture nano-sized particles, which can be utilized to produce high-value-added nanomaterials.

[0051] The above description is merely one example for implementing an exemplary high-temperature oxidation powdering apparatus according to the present invention. The present invention is not limited to the above-described example, and the technical spirit of the present invention extends to the scope in which various modifications can be made by anyone with ordinary knowledge in the field to which the invention belongs, without departing from the gist of the invention as claimed in the following patent claims. Explanation of the symbols

[0052] 100; Exemplary high-temperature oxidation powdering apparatus according to the present invention 110; Reaction chamber 111; Oxidizing agent inlet 112; Leg 113; Roller 114; Front of reaction chamber 115; Stepped surface of reaction chamber 120; Heater 130; Circulation fan absence 131; Motor 132; Rotating shaft 133; Fan 140; Rack frame 141; Horizontal frame 142; Vertical frame 150; Shelf 151; Tray 152; Mesh net 153; Roller 160; Shock supply unit 161; Vertical link 162; horizontal link 163; air cylinder 170; Door 171; High temperature ceramic gasket 172; Door step surface 173; Silicone gasket 174; Rear door 180; Control panel

Claims

Claim 1 A high-temperature oxidation powdering device comprising: a reaction chamber in the shape of a cuboid, having an open front, an internal space, and an oxidizing agent inlet at the top; a heater installed inside the reaction chamber to heat the interior; a circulation fan member installed inside the reaction chamber to circulate heated air; a rack frame installed inside the reaction chamber; a shelf slidably coupled to the rack frame and recovering oxide powder oxidized and falling from a pellet; an impact providing member coupled to the shelf and providing impact to the shelf in a horizontal direction; and a door coupled to the open front of the reaction chamber and opening and closing, wherein the shelf comprises: a tray for receiving oxide powder oxidized and falling from the pellet; a mesh net coupled to the tray; and a plurality of rollers coupled to the bottom of the tray and sliding on the rack frame. Claim 2 A high-temperature oxidation powdering device according to claim 1, wherein the rack frame comprises a plurality of horizontal frames spaced apart in a vertical direction; and a plurality of vertical frames coupled in a vertical direction to the plurality of horizontal frames, and the shelf is slidably coupled to each of the plurality of horizontal frames. Claim 3 delete Claim 4 A high-temperature oxidation powdering device according to claim 1, wherein the impact providing member comprises: a vertical link coupled to the rear of the shelf; a horizontal link coupled to the vertical link and penetrating the rear of the reaction chamber; and an air cylinder installed on the rear outer side of the reaction chamber and coupled to the horizontal link. Claim 5 A high-temperature oxidation powdering apparatus according to claim 1, wherein the open front of the reaction chamber comprises a front surface of the reaction chamber and a reaction chamber stepped surface recessed inwardly from the front surface of the reaction chamber, and the door comprises a door stepped surface that is in close contact with the front surface of the reaction chamber through a high-temperature ceramic gasket and a door rear surface that protrudes from the door stepped surface and is in close contact with the reaction chamber stepped surface through a silicone gasket.

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