Calcining furnace for preparing surface-plated white corundum abrasive

Abstract

The utility model relates to the technical field of white corundum abrasive material preparation, and discloses a calcining furnace for preparing a surface-plated white corundum abrasive material, which comprises a furnace body, a top cover, a protective shell, a fastening ring and supporting legs, the furnace body comprises a furnace wall, a ceramic fiber blanket layer, an insulating brick layer and a graphite layer, the furnace wall, the ceramic fiber blanket layer, the heat preservation brick layer and the graphite layer are sleeved and attached together from outside to inside, four sets of installation grooves are evenly distributed and vertically formed in the inner wall of the graphite layer in the circumferential direction, a support is slidably connected into each installation groove, and supporting rings are fixedly installed at the bottom ends of the inner walls of the four sets of supports. Four sets of connecting holes are evenly distributed in the top of the supporting ring in the circumferential direction, and a protruding block is connected into each connecting hole in a sliding mode. According to the white corundum filtering device, impurities contained in white corundum raw materials can be filtered out, so that the impurities contained in white corundum products are reduced, and the quality of white corundum is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of white corundum abrasive preparation, in particular to a calcining furnace for preparing surface-plated white corundum abrasive. Background Art

[0002] White corundum is a kind of artificial abrasive. It has a white color and contains more than 99% aluminum oxide content and a small amount of iron oxide, silicon oxide and other ingredients. White corundum is made of industrial aluminum oxide powder as raw material. It is melted in an arc at a high temperature of more than 2000 degrees and then cooled. It is crushed and shaped, magnetically separated to remove iron, and sieved into various particle sizes. It has a dense texture, high hardness, and sharp-angled particles. It is suitable for the manufacture of ceramics, resin-bonded abrasives, grinding, polishing, sandblasting, precision casting (special corundum for precision casting), etc. It can also be used to manufacture advanced refractory materials. The preparation process of white corundum is mainly completed in a smelting furnace, including heating, melting and hot melt segregation.

[0003] After searching application number CN201520341228.7, a new type of white corundum smelting furnace is found, including a furnace body, the furnace body is in a U-shaped structure, a flange ring is arranged on the outer side of the top of the furnace body, a layer of ceramic fiber blanket is arranged on the inner side and bottom of the furnace body, a mullite layer is arranged on the inner side and bottom of the ceramic fiber blanket layer, a corundum sand layer is arranged on the inner side and bottom of the mullite layer, a graphite brick layer is inlaid inside the corundum sand layer, an alumina layer is arranged on the inner side and bottom of the corundum sand layer, a furnace is arranged at the alumina layer, and the furnace mouth is in a trapezoidal structure. On the whole, the utility model has the advantages of reasonable structure, simple manufacture, cost saving, stable operation, safe use, water and electricity saving.

[0004] The comparative document discloses a new type of white corundum smelting furnace. When in use, the smelting furnace is unable to filter the molten white corundum raw material, causing the white corundum to melt with the impurities mixed therein during the smelting process, greatly reducing the purity of the melted white corundum and having poor practicality.

[0005] Therefore, we propose a calcining furnace for preparing surface-coated white corundum abrasive. Utility Model Content

[0006] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a calcining furnace for preparing surface-plated white corundum abrasive.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a calcining furnace for preparing surface-coated white corundum abrasive, comprising a furnace body, a top cover, a protective shell, a fastening ring and support legs, wherein the furnace body comprises a furnace wall, a ceramic fiber blanket layer, an insulation brick layer and a graphite layer, wherein the furnace wall, the ceramic fiber blanket layer, the insulation brick layer and the graphite layer are fitted together from the outside to the inside, and the inner wall of the graphite layer is evenly distributed along the circumferential direction and vertically provided with four groups of mounting grooves, each of which is slidably connected with a bracket, and support rings are fixedly installed at the bottom ends of the inner walls of the four groups of brackets, and four groups of connecting holes are evenly distributed along the circumferential direction at the top of the support ring, each of which is slidably connected with a protrusion, and a mounting frame is arranged on the top of the support ring, and the top of each protrusion is fixedly installed on the bottom of the mounting frame, and a filter is fixedly installed on the top inner wall of the mounting frame.

[0008] Furthermore, a top cover is fixedly installed on the top of the furnace body.

[0009] Furthermore, a protective shell is fixedly installed on the top of the top cover.

[0010] Furthermore, a driving motor is fixedly installed inside the protective shell.

[0011] Furthermore, a rotating rod is fixedly mounted on the output end of the driving motor.

[0012] Furthermore, the lower end of the rotating rod passes through the bottom of the top cover and extends into the furnace.

[0013] Furthermore, a scraper rod is fixedly mounted on the bottom of the rotating rod.

[0014] Furthermore, the bottom of the scraper rod is in contact with the upper surface of the filter screen.

[0015] Furthermore, a fastening ring is fixedly installed on the bottom end of the outer wall of the furnace body.

[0016] Furthermore, four groups of supporting legs are evenly distributed and fixedly installed on the outer wall of the fastening ring along the circumferential direction.

[0017] Beneficial Effects

[0018] The utility model provides a calcining furnace for preparing surface-coated white corundum abrasive.

[0019] Beneficial effects:

[0020] 1. The calcining furnace for preparing surface-coated white corundum abrasives, when in use, the support ring is fixedly installed on the lower end of the inner wall of four groups of brackets through the mutual cooperation between the components such as the bracket, support ring, protrusion, installation frame, filter net, etc., and the protrusion installed at the bottom of the installation frame is inserted into the connecting hole, so that the installation frame is fixed on the top of the support ring. When the white corundum raw material enters the furnace, the white corundum raw material is filtered through the filter net to filter out impurities contained in the white corundum raw material, thereby reducing the impurities contained in the white corundum product and improving the quality of the white corundum.

[0021] 2. When in use, the calcining furnace for preparing surface-coated white corundum abrasives cooperates with the provided components such as the driving motor, rotating rod, scraper rod, and filter net. After the white corundum raw material is filtered through the filter net, the impurities contained in the white corundum raw material will be retained on the upper surface of the filter net. The driving motor is started, and the driving motor drives the rotating rod to rotate, and the rotating rod drives the scraper rod to rotate. The scraper rod is in contact with the upper surface of the filter net, and the scraper rod rotates on the upper surface of the filter net, so that the impurities will not clog the mesh of the filter net, thereby improving production efficiency.

[0022] 3. When in use, the calcining furnace for preparing surface-coated white corundum abrasives sets the driving motor inside the protective shell through the cooperation between the top cover, protective shell, driving motor and other components. This reduces the noise generated by the driving motor when it is working, and can also prevent dust from falling on the driving motor and affecting the service life of the driving motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which the utility model can be implemented, so they have no substantial technical significance.

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure;

[0025] Figure 2 It is a schematic diagram of the furnace structure;

[0026] Figure 3 It is a schematic diagram of the structure of the connection components between the bracket and the installation frame;

[0027] Figure 4 It is a schematic diagram of the structure of the scraper rod and its connecting components;

[0028] Figure 5 It is a schematic diagram of the cross-sectional structure of the furnace body.

[0029] Legend:

[0030] 1. Furnace body; 2. Top cover; 3. Protective shell; 4. Fastening ring; 5. Support leg; 6. Bracket; 7. Support ring; 8. Connection hole; 9. Installation frame; 10. Filter screen; 11. Bump; 12. Drive motor; 13. Rotating rod; 14. Scraper rod; 15. Furnace wall; 16. Ceramic fiber blanket layer; 17. Insulation brick layer; 18. Graphite layer; 19. Furnace chamber; 20. Installation groove. DETAILED DESCRIPTION

[0031] Embodiment 1

[0032] A calcining furnace for preparing surface-coated white corundum abrasive, such as Figure 1-5 As shown, it includes a furnace body 1, a top cover 2, a protective shell 3, a fastening ring 4 and a supporting leg 5. The furnace body 1 includes a furnace wall 15, a ceramic fiber blanket layer 16, an insulating brick layer 17 and a graphite layer 18. The furnace wall 15, the ceramic fiber blanket layer 16, the insulating brick layer 17 and the graphite layer 18 are fitted together from the outside to the inside. The inner wall of the graphite layer 18 is evenly distributed along the circumferential direction and vertically opened with four groups of mounting grooves 20, each of which is slidably connected with a bracket 6. The bottom ends of the inner walls of the four groups of brackets 6 are fixedly installed with support rings 7. The top of the support ring 7 is evenly distributed along the circumferential direction and opened with four groups of connecting holes 8. Each connecting hole 8 is slidably connected with a protrusion 11. The top of the support ring 7 is provided with a mounting frame 9. The top of each protrusion 11 is fixedly installed on the bottom of the mounting frame 9. The top inner wall of the mounting frame 9 is fixedly installed with a filter screen 10.

[0033] In this embodiment, when in use, the support ring 7 is fixedly installed on the lower end of the inner wall of the four groups of brackets 6 through the mutual cooperation between the components such as the bracket 6, the support ring 7, the protrusion 11, the installation frame 9, the filter screen 10, etc., and the protrusion 11 installed at the bottom of the installation frame 9 is inserted into the connecting hole 8, so that the installation frame 9 is fixed on the top of the support ring 7. When the white corundum raw material enters the furnace 19, the white corundum raw material is filtered through the filter screen 10, and the impurities contained in the white corundum raw material are filtered out, thereby reducing the impurities contained in the white corundum product and improving the quality of the white corundum.

[0034] Embodiment 2

[0035] Based on the first embodiment, Figure 1-5 As shown, a top cover 2 is fixedly installed on the top of the furnace body 1, a protective shell 3 is fixedly installed on the top of the top cover 2, a driving motor 12 is fixedly installed inside the protective shell 3, a rotating rod 13 is fixedly installed on the output end of the driving motor 12, the lower end of the rotating rod 13 passes through the bottom of the top cover 2 and extends into the furnace 19, a scraper rod 14 is fixedly installed on the bottom of the rotating rod 13, and the bottom of the scraper rod 14 fits with the upper surface of the filter screen 10, a fastening ring 4 is fixedly installed on the bottom end of the outer wall of the furnace body 1, and four groups of supporting legs 5 are evenly distributed and fixedly installed on the outer wall of the fastening ring 4 along the circumferential direction.

[0036] In this embodiment, through the mutual cooperation between the components such as the driving motor 12, the rotating rod 13, the scraper rod 14, and the filter screen 10, after the white corundum raw material is filtered through the filter screen 10, the impurities contained in the white corundum raw material will be retained on the upper surface of the filter screen 10, and the driving motor 12 is started, and the driving motor 12 drives the rotating rod 13 to rotate, and the rotating rod 13 drives the scraper rod 14 to rotate, and the scraper rod 14 is in contact with the upper surface of the filter screen 10. The scraper rod 14 rotates on the upper surface of the filter screen 10, so that the impurities will not block the mesh of the filter screen 10, thereby improving the production efficiency.

[0037] In this embodiment, the drive motor 12 is arranged inside the protective shell 3 through the mutual cooperation between the top cover 2, the protective shell 3, the drive motor 12 and other components. This can reduce the noise generated by the drive motor 12 when it is working, and can also prevent dust from falling on the drive motor 12 and affecting the service life of the drive motor 12.

[0038] The working principle of the utility model is as follows: when in use, the support ring 7 is fixedly installed on the lower end of the inner wall of the four sets of brackets 6 through the mutual cooperation between the components such as the support ring 7, the support ring 7, the protrusion 11, the installation frame 9, the filter screen 10, etc., and the protrusion 11 installed at the bottom of the installation frame 9 is inserted into the connecting hole 8, so that the installation frame 9 is fixed on the top of the support ring 7. When the white corundum raw material enters the furnace 19, the white corundum raw material is filtered through the filter screen 10, and the impurities contained in the white corundum raw material are filtered out, thereby reducing the impurities contained in the white corundum product and improving the quality of the white corundum. Quality, through the mutual cooperation between the set driving motor 12, rotating rod 13, scraper rod 14, filter screen 10 and other components, after the white corundum raw material is filtered through the filter screen 10, the impurities contained in the white corundum raw material will be retained on the upper surface of the filter screen 10, start the driving motor 12, the driving motor 12 drives the rotating rod 13 to rotate, the rotating rod 13 drives the scraper rod 14 to rotate, the scraper rod 14 is in contact with the upper surface of the filter screen 10, and the scraper rod 14 rotates on the upper surface of the filter screen 10, so that the impurities will not block the mesh of the filter screen 10, thereby improving the production efficiency.

[0039] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A calcining furnace for preparing surface-coated white corundum abrasive, comprising a furnace body (1), a top cover (2), a protective shell (3), a fastening ring (4) and a supporting leg (5), characterized in that: The furnace body (1) comprises a furnace wall (15), a ceramic fiber blanket layer (16), a thermal insulation brick layer (17) and a graphite layer (18); the furnace wall (15), the ceramic fiber blanket layer (16), the thermal insulation brick layer (17) and the graphite layer (18) are sleeved and bonded together from the outside to the inside; the inner wall of the graphite layer (18) is evenly distributed along the circumferential direction and vertically provided with four groups of mounting grooves (20); each mounting groove (20) is slidably connected with a bracket (6); a support ring (7) is fixedly installed at the bottom end of the inner wall of the four groups of brackets (6); four groups of connection holes (8) are evenly distributed along the circumferential direction at the top of the support ring (7); each connection hole (8) is slidably connected with a protrusion (11); a mounting frame (9) is provided at the top of the support ring (7); the top of each protrusion (11) is fixedly installed at the bottom of the mounting frame (9); and a filter screen (10) is fixedly installed on the top inner wall of the mounting frame (9).

2. The calcining furnace for preparing surface-coated white corundum abrasive according to claim 1, characterized in that: A top cover (2) is fixedly mounted on the top of the furnace body (1), and a protective shell (3) is fixedly mounted on the top of the top cover (2).

3. The calcining furnace for preparing surface-coated white corundum abrasive according to claim 2, characterized in that: A driving motor (12) is fixedly mounted inside the protective shell (3), and a rotating rod (13) is fixedly mounted at the output end of the driving motor (12).

4. The calcining furnace for preparing surface-coated white corundum abrasive according to claim 3, characterized in that: The lower end of the rotating rod (13) passes through the bottom of the top cover (2) and extends into the furnace (19).

5. The calcining furnace for preparing surface-coated white corundum abrasive according to claim 4, characterized in that: A scraper rod (14) is fixedly mounted on the bottom of the rotating rod (13), and the bottom of the scraper rod (14) is in contact with the upper surface of the filter screen (10).

6. The calcining furnace for preparing surface-coated white corundum abrasive according to claim 1, characterized in that: A fastening ring (4) is fixedly mounted on the bottom end of the outer wall of the furnace body (1).

7. The calcining furnace for preparing surface-coated white corundum abrasive according to claim 1, characterized in that: Four groups of supporting legs (5) are evenly distributed and fixedly mounted on the outer wall of the fastening ring (4) in the circumferential direction.

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