A device for preparing high-temperature oxidation reaction of zinc oxide powder

Abstract

The utility model relates to the technical field of zinc oxide preparation, concretely to a high temperature oxidation reaction unit for zinc oxide powder preparation, including combustion furnace, oxidizing furnace, connecting pipe, heater and heating mechanism, both ends of connecting pipe are fixedly connected with the surface of combustion furnace and oxidizing furnace respectively, heater fixed mounting is in the inner wall of combustion furnace, and heating mechanism sets up in the inner wall of combustion furnace, heating mechanism includes crucible, and the inner wall of combustion furnace is fixedly installed with the furnace cover, and the surface fixed mounting of furnace cover has motor no.

Description

Technical Field

[0001] This utility model relates to the field of zinc oxide preparation technology, and in particular to a high-temperature oxidation reaction device for preparing zinc oxide powder. Background Technology

[0002] Zinc oxide is an inorganic substance. In its preparation, zinc ingots obtained by electrolysis are heated to 600-700°C to melt, and then placed in a high-temperature resistant crucible to melt and vaporize at a high temperature of 1250-1300°C. Hot air is then introduced for oxidation. The resulting zinc oxide is cooled and separated by cyclone separation. Fine particles are then collected in a cloth bag to obtain the finished zinc oxide product.

[0003] Existing technologies, such as Chinese Patent Publication No. CN213866366U, disclose a high-temperature combustion furnace for zinc oxide processing, comprising a base, a combustion furnace, and an oxidation furnace. Both the combustion furnace and the oxidation furnace are located on top of the base, and a support frame is fixedly connected between the oxidation furnace and the base. In this invention, a connecting pipe transports the vaporized gas after combustion into the oxidation furnace, a solenoid valve controls the gas flow, and a baffle blocks the gas flow rate, ensuring sufficient oxidation of the vaporized gas with air. A sealing cover seals the combustion furnace with a sealing gasket, preventing the vaporized gas from overflowing. The structure is simple and improves the efficiency of zinc oxide raw material combustion and oxidation, thereby increasing zinc oxide production efficiency. However, the rotating arc-shaped scraper in this invention makes it difficult to fully mix the raw materials above and below the crucible, potentially leading to uneven heating. Furthermore, the fixed baffle makes it difficult to adjust the oxidation time as needed.

[0004] To address the problem that high-temperature oxidation reaction devices for zinc oxide powder preparation do not readily provide sufficient and uniform heating to the raw materials, high-temperature treatment of zinc oxide raw materials is required during zinc oxide processing. However, existing equipment cannot achieve uniform and complete combustion of the zinc oxide raw materials during combustion, and uneven heating is particularly prone to occur, thereby slowing down the combustion and evaporation efficiency and affecting the zinc oxide production efficiency. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to solve the problem that existing high-temperature oxidation reaction devices for preparing zinc oxide powder are not conducive to ensuring that the raw materials are heated sufficiently and uniformly, and to propose a high-temperature oxidation reaction device for preparing zinc oxide powder.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-temperature oxidation reaction device for preparing zinc oxide powder, comprising a combustion furnace, an oxidation furnace, a connecting pipe, a heater, and a heating mechanism, wherein the two ends of the connecting pipe are fixedly connected to the surfaces of the combustion furnace and the oxidation furnace respectively, the heater is fixedly installed on the inner wall of the combustion furnace, and the heating mechanism is disposed on the inner wall of the combustion furnace;

[0007] The heating mechanism includes a crucible, which is fixedly installed on the inner wall of the combustion furnace. A furnace cover is fixedly installed on the surface of the combustion furnace. A motor is fixedly installed on the surface of the furnace cover. A screw is fixedly connected to the output end of the motor. A movable frame is threadedly connected to the surface of the screw. The movable frame is slidably connected to the inner wall of the furnace cover. A flip plate is fixedly connected to the surface of the movable frame.

[0008] A scraper is fixedly connected to the surface of the flipping plate, and the scraper is slidably connected to the inner wall of the crucible. A through groove is opened on the surface of the flipping plate.

[0009] Furthermore, the crucible is fitted with the heater, the scraper is fitted with the crucible, and the number of through slots is multiple and evenly distributed around the circumference.

[0010] Furthermore, the surface of the movable frame is fixedly connected with a cutter, which is located inside the combustion furnace, and the cutter is in multiple sets and evenly distributed.

[0011] Furthermore, a sealing gasket is fixedly connected to the surface of the furnace cover, the sealing gasket is compatible with the combustion furnace, and a heat insulation layer is fixedly connected to the surface of the furnace cover.

[0012] Furthermore, the surface of the oxidation furnace is provided with an adjustment mechanism, the adjustment mechanism including a cover, the cover being fixedly installed on the surface of the oxidation furnace, the surface of the cover having an air inlet, and the surface of the oxidation furnace having a material outlet.

[0013] Furthermore, a second motor is fixedly installed on the surface of the cover, and a rotating shaft is fixedly connected to the output end of the second motor. The rotating shaft is rotatably connected to the inner wall of the cover, and a spiral plate is fixedly connected to the surface of the rotating shaft. The spiral plate is adapted to the oxidation furnace.

[0014] Furthermore, a filter screen one is fixedly installed on the surface of the air inlet, and a filter screen two is fixedly installed on the surface of the connecting pipe.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, by setting up a heating mechanism, the raw materials are put into the crucible, the furnace lid is closed, and the sealing gasket and heat insulation layer are used to ensure the sealing and heat insulation effect. The heater is started to treat the raw materials in the crucible at high temperature. During this process, the motor can be started and continuously rotated forward and backward, so that the screw rotates accordingly, which in turn causes the movable frame to drive the flipping plate to move up and down continuously. In conjunction with the through groove on it, the raw materials are flipped, so that the upper and lower parts and the inside and outside are heated evenly. At the same time, the scraper can scrape the raw materials off the inner wall of the crucible, and the cutting blade can prevent the raw materials from clumping. By setting up a heating mechanism, the up and down moving flipping plate can be used to make the raw materials heat evenly from the upper and lower parts and the inside and outside, and the scraper and cutting blade can be used to prevent the raw materials from sticking to the wall and clumping, which effectively improves the convenience of the equipment.

[0017] 2. In this utility model, by setting an adjustment mechanism, the gas evaporated after combustion enters the oxidation furnace through the connecting pipe, uses the gas inlet to carry out the oxidation reaction, and uses the discharge port to discharge the product. The second motor can be started to drive the spiral plate to rotate. The speed of gas flow in the oxidation furnace can be adjusted by changing the speed of the second motor, so that the evaporated gas can be fully oxidized. By setting an adjustment mechanism, the gas flow speed inside the oxidation furnace can be adjusted as needed to ensure that the evaporated gas is fully oxidized, thereby effectively improving the applicability of the equipment. Attached Figure Description

[0018] Figure 1 This invention provides a three-dimensional structural schematic diagram of a high-temperature oxidation reaction apparatus for preparing zinc oxide powder;

[0019] Figure 2 This utility model provides a cross-sectional structural schematic diagram of the heating mechanism in a high-temperature oxidation reaction apparatus for preparing zinc oxide powder;

[0020] Figure 3 This invention proposes a high-temperature oxidation reaction apparatus for preparing zinc oxide powder. Figure 2 A magnified structural diagram at point A;

[0021] Figure 4 This utility model provides a cross-sectional structural schematic diagram of the regulating mechanism in a high-temperature oxidation reaction apparatus for preparing zinc oxide powder;

[0022] Figure 5 This invention proposes a high-temperature oxidation reaction apparatus for preparing zinc oxide powder. Figure 4 A magnified structural diagram at point B.

[0023] Legend:

[0024] 1. Combustion furnace; 2. Oxidation furnace; 3. Connecting pipe; 4. Heater; 5. Heating mechanism; 501. Crucible; 502. Furnace cover; 503. Motor 1; 504. Screw; 505. Movable frame; 506. Tilting plate; 507. Scraper; 508. Through groove; 509. Cutter; 510. Sealing gasket; 511. Insulation layer; 6. Adjustment mechanism; 61. Cover; 62. Air inlet; 63. Discharge port; 64. Motor 2; 65. Rotating shaft; 66. Spiral plate; 67. Filter screen 1; 68. Filter screen 2. Detailed Implementation

[0025] Please see Figures 1-5 This utility model provides a technical solution: a high-temperature oxidation reaction device for preparing zinc oxide powder, including a combustion furnace 1, an oxidation furnace 2, a connecting pipe 3, a heater 4, and a heating mechanism 5. The two ends of the connecting pipe 3 are fixedly connected to the surfaces of the combustion furnace 1 and the oxidation furnace 2, respectively. The heater 4 is fixedly installed on the inner wall of the combustion furnace 1, and the heating mechanism 5 is arranged on the inner wall of the combustion furnace 1.

[0026] The specific setup and function of its heating mechanism 5 and adjusting mechanism 6 will be explained below.

[0027] In this embodiment: the heating mechanism 5 includes a crucible 501, which is fixedly installed on the inner wall of the combustion furnace 1. A furnace cover 502 is fixedly installed on the surface of the combustion furnace 1. A motor 503 is fixedly installed on the surface of the furnace cover 502. A screw 504 is fixedly connected to the output end of the motor 503. A movable frame 505 is threadedly connected to the surface of the screw 504. The movable frame 505 is slidably connected to the inner wall of the furnace cover 502. A flipping plate 506 is fixedly connected to the surface of the movable frame 505.

[0028] A scraper 507 is fixedly connected to the surface of the flipping plate 506. The scraper 507 is slidably connected to the inner wall of the crucible 501. A through groove 508 is opened on the surface of the flipping plate 506.

[0029] The effects achieved by the above components are as follows: the crucible 501 is provided to facilitate the placement of raw materials, which are then used in conjunction with the heater 4 to perform high-temperature treatment on the raw materials; the furnace cover 502 is provided to facilitate the opening and closing of the combustion furnace 1; the motor 503, screw 504, movable frame 505, and tilting plate 506 are provided so that when the motor 503 is started and the screw 504 is rotated, the movable frame 505 can move up and down along the inner wall of the furnace cover 502, which in turn drives the tilting plate 506 to move up and down, allowing the motor to continuously rotate in both directions, thereby using the continuously moving tilting plate 506 to turn the raw materials, so that both the top and bottom can be heated evenly; the scraper 507 is provided so that when the tilting plate 506 moves up and down, the raw materials on the inner wall of the crucible 501 can be scraped off; and the through groove 508 is provided to facilitate the passage of raw materials through the tilting plate 506.

[0030] Specifically, the crucible 501 is matched with the heater 4, the scraper 507 is matched with the crucible 501, and there are multiple through slots 508 that are evenly distributed around the circumference.

[0031] The effect achieved by the above components is that the multiple through slots 508 are set to improve the efficiency of raw material passage and facilitate the use of the flipping plate 506 to ensure that the raw material is fully mixed and evenly heated both above and below and inside and outside.

[0032] Specifically, a cutter 509 is fixedly connected to the surface of the movable frame 505. The cutter 509 is located inside the combustion furnace 1, and there are multiple sets of cutters 509 that are evenly distributed.

[0033] The effect achieved by the above components is as follows: the cutter 509 is set so that when the movable frame 505 moves up and down, the cutter 509 can be used to cut the raw material to avoid clumping.

[0034] Specifically, a sealing gasket 510 is fixedly connected to the surface of the furnace cover 502, and the sealing gasket 510 cooperates with the combustion furnace 1. A heat insulation layer 511 is fixedly connected to the surface of the furnace cover 502.

[0035] The effect achieved by the above components is that the sealing gasket 510 and the heat insulation layer 511 are provided to increase the sealing between the furnace cover 502 and the combustion furnace 1 and the heat insulation of the furnace cover 502 itself.

[0036] Specifically, the surface of the oxidation furnace 2 is provided with an adjustment mechanism 6, which includes a cover 61. The cover 61 is fixedly installed on the surface of the oxidation furnace 2. An air inlet 62 is opened on the surface of the cover 61, and a material outlet 63 is opened on the surface of the oxidation furnace 2.

[0037] The effects achieved by the above components are as follows: the cover 61 is provided to facilitate the opening and closing of the oxidation furnace 2; the air inlet 62 is provided to facilitate the oxidation reaction between the gas and the evaporated gas; and the discharge port 63 is provided to facilitate the discharge of the product.

[0038] Specifically, a second motor 64 is fixedly installed on the surface of the cover 61, and a rotating shaft 65 is fixedly connected to the output end of the second motor 64. The rotating shaft 65 is rotatably connected to the inner wall of the cover 61, and a spiral plate 66 is fixedly connected to the surface of the rotating shaft 65. The spiral plate 66 is adapted to the oxidation furnace 2.

[0039] The effect achieved by the above components is as follows: the motor 64, the rotating shaft 65 and the spiral plate 66 are set so that when the motor 64 is started, the rotating shaft 65 drives the spiral plate 66 to rotate, and the speed of gas flow is adjusted by changing the speed of the motor 64, so that the evaporated gas can be fully oxidized.

[0040] Specifically, a filter screen 67 is fixedly installed on the surface of the air inlet 62, and a filter screen 68 is fixedly installed on the surface of the connecting pipe 3.

[0041] The effects achieved by the above components are as follows: filter screen 67 is set to prevent external impurities from entering the oxidation furnace 2 through the air inlet 62, and filter screen 68 is set to prevent combustion impurities from entering the oxidation furnace 2 through the connecting pipe 3.

[0042] Working principle: By setting up the heating mechanism 5, the raw material is put into the crucible 501, the furnace lid 502 is closed, and the sealing gasket 510 and the heat insulation layer 511 are used to ensure the sealing and heat insulation effect. The heater 4 is started to treat the raw material in the crucible 501 at high temperature. During this process, the motor 503 can be started to continuously rotate forward and backward, so that the screw 504 rotates accordingly, which in turn causes the movable frame 505 to drive the flipping plate 506 to continuously move up and down. In conjunction with the through groove 508 on it, the raw material is flipped, so that the upper and lower parts and the inside and outside are heated evenly. At the same time, the scraper 507 can scrape the raw material off the inner wall of the crucible 501, and the cutting blade 509 can prevent the raw material from clumping. By setting up the heating mechanism 5, the up and down moving flipping plate 506 can make the raw material heat evenly from the upper and lower parts and the inside and outside, and the scraper 507 and the cutting blade 509 can prevent the raw material from sticking to the wall and clumping, which effectively improves the convenience of the equipment.

[0043] Furthermore, by setting an adjustment mechanism 6, the gas evaporated after combustion enters the oxidation furnace 2 through the connecting pipe 3, uses the gas inlet 62 to supply gas for oxidation reaction, and discharges the product through the discharge port 63. The motor 64 can be started to make the rotating shaft 65 drive the spiral plate 66 to rotate. By changing the speed of the motor 64, the gas flow speed inside the oxidation furnace 2 can be adjusted, so that the evaporated gas can be fully oxidized. By setting an adjustment mechanism 6, the gas flow speed inside the oxidation furnace 2 can be adjusted as needed to ensure that the evaporated gas is fully oxidized, which effectively improves the applicability of the equipment.

Claims

1. A high-temperature oxidation reaction apparatus for preparing zinc oxide powder, comprising a combustion furnace (1), an oxidation furnace (2), a connecting pipe (3), a heater (4), and a heating mechanism (5), characterized in that: The two ends of the connecting pipe (3) are fixedly connected to the surfaces of the combustion furnace (1) and the oxidation furnace (2) respectively. The heater (4) is fixedly installed on the inner wall of the combustion furnace (1). The heating mechanism (5) is set on the inner wall of the combustion furnace (1). The heating mechanism (5) includes a crucible (501), which is fixedly installed on the inner wall of the combustion furnace (1). A furnace cover (502) is fixedly installed on the surface of the combustion furnace (1). A motor (503) is fixedly installed on the surface of the furnace cover (502). A screw (504) is fixedly connected to the output end of the motor (503). A movable frame (505) is threadedly connected to the surface of the screw (504). The movable frame (505) is slidably connected to the inner wall of the furnace cover (502). A flip plate (506) is fixedly connected to the surface of the movable frame (505). A scraper (507) is fixedly connected to the surface of the flipping plate (506), and the scraper (507) is slidably connected to the inner wall of the crucible (501). A through groove (508) is opened on the surface of the flipping plate (506).

2. The apparatus for preparing high-temperature oxidation reaction of zinc oxide powder according to claim 1, characterized in that: The crucible (501) is matched with the heater (4), the scraper (507) is matched with the crucible (501), and the number of through grooves (508) is multiple and they are evenly distributed around the circumference.

3. The apparatus for preparing high-temperature oxidation reaction of zinc oxide powder according to claim 1, characterized in that: A cutter (509) is fixedly connected to the surface of the movable frame (505). The cutter (509) is located inside the combustion furnace (1). The cutter (509) is in multiple sets and is evenly distributed.

4. The apparatus for preparing high-temperature oxidation reaction of zinc oxide powder according to claim 1, characterized in that: A sealing gasket (510) is fixedly connected to the surface of the furnace cover (502), and the sealing gasket (510) cooperates with the combustion furnace (1). A heat insulation layer (511) is fixedly connected to the surface of the furnace cover (502).

5. The apparatus for preparing high-temperature oxidation reaction of zinc oxide powder according to claim 1, characterized in that: The surface of the oxidation furnace (2) is provided with an adjustment mechanism (6), the adjustment mechanism (6) includes a cover (61), the cover (61) is fixedly installed on the surface of the oxidation furnace (2), the surface of the cover (61) is provided with an air inlet (62), and the surface of the oxidation furnace (2) is provided with a material outlet (63).

6. The apparatus for preparing high-temperature oxidation reaction of zinc oxide powder according to claim 5, characterized in that: A second motor (64) is fixedly installed on the surface of the cover (61). A rotating shaft (65) is fixedly connected to the output end of the second motor (64). The rotating shaft (65) is rotatably connected to the inner wall of the cover (61). A spiral plate (66) is fixedly connected to the surface of the rotating shaft (65). The spiral plate (66) is adapted to the oxidation furnace (2).

7. The high-temperature oxidation reaction apparatus for preparing zinc oxide powder according to claim 5, characterized in that: A filter screen (67) is fixedly installed on the surface of the air inlet (62), and a filter screen (68) is fixedly installed on the surface of the connecting pipe (3).

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