A calcining device for corundum abrasive and a method of using the same

Abstract

The present invention relates to the technical field of calcining corundum abrasives, and specifically to a calcining device and a method for using corundum abrasives, comprising a furnace body, the top of which is set as an open structure, and a furnace cover is fixedly installed on the top of the furnace body. The calcining device and method for using corundum abrasives use convex teeth to push the inner ring and the outer ring to rotate in opposite directions along the spiral patterns on both sides. During this process, the inner ring uses the spiral patterns to push the inner sheath and the corresponding electrode downward, and the outer ring uses the spiral patterns to push the outer sheath and the corresponding electrode upward. Compared with the existing single set of electrode up and down movement function, the above-mentioned inner ring, outer ring, inner sheath, and outer sheath are respectively matched, and the opposite operation of the two sets of electrodes can be realized under the premise of realizing the function of adjusting the height by moving the motor up and down. Therefore, when calcination is completed or the operating electrode fails, the electrode switching can be completed without opening the furnace body, and the calcination operation can be quickly entered again, thereby improving production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of corundum abrasive calcining, in particular to a corundum abrasive calcining device and a use method thereof. Background Art

[0002] Corundum abrasive, also known as diamond sand, is a brown artificial corundum made by melting and reducing three raw materials, bauxite, carbon material and iron scraps, in an electric arc furnace. Three-phase electric arc furnaces are commonly used in production. Three-phase electric arc furnaces use the heat generated by the arc between three-phase electrodes and raw materials to melt industrial alumina.

[0003] The existing patent (publication number: CN115654927A) discloses an electric melting device for white corundum processing, including: a furnace body, the interior of which is used to place aluminum powder; a motor adjustment mechanism, which is arranged above the furnace body and includes a control panel, on which an electrode with the bottom end extending into the interior of the furnace body is installed; a feeding mechanism, which includes a feeding pipe, a bending pipe, a feeding port and a shrinking bracket, the bottom end of the bending pipe extending into the interior of the furnace body, the feeding pipe is arranged at the top of the bending pipe, the feeding port is arranged at the bottom of the bending pipe, and the shrinking bracket is arranged on the bending pipe and is used to drive the shrinking bracket to shrink in the vertical direction, thereby adjusting the height of the feeding port. The above-mentioned prior art injection pipe only performs edge movement injection, the raw material dispersion is poor, and the electrode needs to be opened and cleaned after a period of use, which affects the calcination efficiency.

[0004] In view of this, we propose a calcining device and a method for using corundum abrasive. Summary of the invention

[0005] The purpose of the present invention is to provide a calcining device for corundum abrasive and a method for using the same, so as to solve the problem in the above background technology that the pipe for injecting materials in the prior art only injects materials at the edge, the dispersion of the raw materials is poor, and the electrodes need to be opened and cleaned after being used for a period of time, which affects the efficiency of the calcining operation. To achieve the above purpose, the present invention provides the following technical solutions: a calcining device for corundum abrasive, comprising a furnace body, the top of the furnace body is set as an open structure, and a furnace cover is fixedly installed on the top of the furnace body, two groups of electrodes are arranged on the furnace cover, and a single group of electrodes is set as three, and switches are arranged on the two groups of electrodes and the furnace cover.

[0006] The switcher comprises a sleeve arranged on the furnace cover, and a moving seat is slidably connected inside the sleeve. A cylinder is fixedly installed on the top of the furnace cover through a bracket, and the telescopic end of the cylinder is fixedly connected to the moving seat.

[0007] The furnace cover is movably interspersed with three outer sheaths and three inner sheaths corresponding to the two groups of electrodes, and the three outer sheaths and the three inner sheaths are in an interval ring array, and the two groups of electrodes are fixedly interspersed in the three outer sheaths and the three inner sheaths.

[0008] The top of the furnace cover is rotatably connected with an outer ring and an inner ring, and the outer ring is located at the outer ring of the three outer sheaths, and the inner ring is located at the inner ring of the three inner sheaths.

[0009] The inner ring of the outer ring and the outer ring of the inner ring are both provided with spiral patterns, and the spiral directions of the inner and outer spiral patterns are opposite. Both sides of the surface of the movable seat are fixedly provided with convex teeth respectively used in conjunction with the spiral patterns on both sides.

[0010] The outer side of the outer sheath surface and the inner side of the inner sheath surface are both provided with spiral grooves, and the spiral grooves on the outer sheath match with the spiral patterns on the outer ring, and the spiral grooves on the inner sheath match with the spiral patterns on the inner ring.

[0011] The furnace body is provided with a cloth assembly matched with the outer sheath and the inner sheath.

[0012] Preferably, the material distribution assembly includes an interface fixedly mounted on the furnace cover and communicating with the interior of the furnace body, and a telescopic tube is fixedly mounted at the bottom end of the interface.

[0013] A ring platform is arranged on the upper side of the furnace body, and an annular disk is rotatably connected to the ring platform. The annular disk is located outside the two groups of electrodes, and a triangular slope plate is fixedly installed on the top of the annular disk for use alternately with the outer sheath and the inner sheath. The triangular slope plates are arranged in a ring array of three.

[0014] The outer ring of the annular disk is provided with annular teeth.

[0015] The inner ring of the ring table is provided with six transverse sliding grooves opposite to the telescopic tube, and the transverse sliding grooves are located in the area between two adjacent electrodes. A slide with a rack is slidably connected in the transverse sliding groove. A rotating shaft corresponding to the slide is rotatably arranged on the ring table, and tooth surfaces are arranged at both ends of the rotating shaft. The upper tooth surfaces on the six rotating shafts are alternately meshed with the ring teeth, and the lower tooth surfaces are meshed with the rack on the slide.

[0016] A hoop with a semi-ring structure is provided at one end of the slide away from the ring platform, and a control rack is movably inserted into the surface of the hoop on the side opposite to the telescopic tube. A through groove is provided on the hoop, and an elliptical wheel is provided in the through groove. The elliptical wheel is rotatably connected along the through groove through a connecting shaft, and a tooth pattern is provided at the bottom end of the connecting shaft and meshes with the control rack after passing through the hoop.

[0017] Buckles are slidably connected to both sides of the ring hoop, and one end of the buckle extends into the through slot to match the elliptical wheel.

[0018] The furnace body, the ring platform, the slide frame and the ring hoop are provided with electrode cleaning components.

[0019] Preferably, the electrode cleaning assembly includes a hanging ear fixed on the side surface of the ring table, and the side surface of the furnace body is provided with a rotation groove for the hanging ear to pass through.

[0020] The end of the slide is fixedly connected with a connecting plate, and the surface of the connecting plate is provided with two vertical sliding grooves, and a sliding sleeve is slidably connected in the vertical sliding groove along the up-and-down direction.

[0021] Two sliding rods are fixedly connected to the side surface of the ring hoop, and the sliding rods are slidably connected in the sliding sleeve.

[0022] The side of the connecting plate surface opposite to the hoop is fixedly connected to a limiting shell, and the inner wall of the limiting shell is set as an inclined plate matched with the slide rod. A spring sheet matched with the slide rod is arranged inside the limiting shell, and the spring sheet pushes the slide rod to move upward.

[0023] Preferably, the side surfaces of the inner and outer sheaths are fixedly connected with pressing blocks that match the triangular slope plates.

[0024] Preferably, a receiving ring cooperating with the slide is fixedly provided on the outside of the furnace body.

[0025] Preferably, a tension spring connected to the slide is arranged inside the accommodating ring.

[0026] Preferably, a ball is rotatably embedded in the end portion of the slide rod on one side relative to the inclined plate.

[0027] A method for using a calcining device for a corundum abrasive comprises the following steps:

[0028] S1. Inject the raw materials to be calcined into the furnace body, connect one set of electrodes, and then supply electricity to start the arc for calcination;

[0029] S2. After the primary calcination is completed or the operating electrode fails, the cylinder is started to drive the moving seat to move downward, and the convex teeth on its surface push the inner ring and the outer ring to rotate in opposite directions along the spiral patterns on both sides. During this process, the inner ring uses the spiral patterns to push the inner sheath and the corresponding electrode downward, and the outer ring uses the spiral patterns to push the outer sheath and the corresponding electrode upward;

[0030] S3. Before calcining, the furnace body is filled with materials by using the telescopic tube. In the process of the inner and outer sleeves moving down alternately, the bottom of the downwardly moving sleeve rotates along the triangular slope plate to squeeze the annular disk, and the ring teeth of the outer ring are meshed with the six rotating shafts one by one, so that the six slides are pushed out and slide toward the telescopic tube one by one in sequence. In this process, the slide fits the hoop to the outside of the telescopic tube, so that the control rack is squeezed and displaced by the telescopic tube, and the elliptical wheel is pushed to rotate along the connecting shaft. The protruding part of the elliptical wheel pushes the buckle to slide out of the locked telescopic tube. When the slide retracts and resets, the telescopic tube is pulled from the center of the furnace body to the edge until the control rack contacts the ring table and is pushed back. The elliptical wheel rotates to unlock the buckle, and the telescopic tube is automatically reset to the center.

[0031] S4. After calcination is completed, the ear is used to push the ring table to rotate, so that the ring hoop is converted from between the two electrodes to the aligned electrode. At this time, when the ring hoop moves toward the center of the furnace body, it fits on the surface of the electrode. The continuously moving slide and the fixed electrode squeeze the ring hoop relative to each other, so that the ring hoop is translated along the connecting plate through the slide rod. During this process, the slide rod is constrained by the inclined plate, and the spring is compressed by the sliding sleeve and then moved downward, that is, the ring hoop moves downward and scrapes along the electrode surface.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] In the present invention, the convex teeth are used to push the inner ring and the outer ring to rotate in opposite directions along the spiral patterns on both sides. During this process, the inner ring uses the spiral patterns to push the inner sheath and the corresponding electrode downward, and the outer ring uses the spiral patterns to push the outer sheath and the corresponding electrode upward. Compared with the existing function of moving a single group of electrodes up and down, the inner ring, the outer ring, the inner sheath and the outer sheath are respectively matched, and on the premise of realizing the function of adjusting the height by moving the motor up and down, the opposite operation of the two groups of electrodes can be realized. Therefore, when calcination is completed or a fault occurs in the operating electrode, the electrode switching can be completed without opening the furnace body, and the calcination operation can be quickly entered again, thereby improving production efficiency.

[0034] The cam is pressed against the outer surface of the cylinder and the cam is pressed against the outer surface of the cylinder, and the cam is pressed against the outer surface of the cylinder, and the cam is pressed against the outer surface of the cylinder.

[0035] In the present invention, the ring table is driven to rotate by the hanging ear, so that the ring hoop is converted from being between the two electrodes to being aligned with the electrode. At this time, when the ring hoop moves toward the center of the furnace body, it fits against the surface of the electrode. The continuously moving slide and the fixed electrode squeeze the ring hoop relative to each other, so that the ring hoop is translated along the connecting plate through the slide rod. During this process, the slide rod is constrained by the inclined plate, and the slide sleeve compresses the spring sheet and then moves downward, that is, the ring hoop moves downward and scrapes along the electrode surface. Compared with the existing injection position adjustment structure, the above-mentioned slide and ring hoop can realize the dispersion of the material, and after the calcination is completed, the extrusion vertical movement of the ring hoop can be realized by the position difference between the electrode and the telescopic tube, and the electrode surface cleaning can be completed. The cleaning operation does not need to open the furnace body, and the operation is convenient and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0037] Figure 2 It is a structural schematic diagram of the furnace cover, outer sheath and inner sheath of the present invention;

[0038] Figure 3 It is a three-dimensional structural cross-sectional view of the furnace body and furnace cover of the present invention;

[0039] Figure 4 For the present invention Figure 3 The enlarged view of point A in the middle;

[0040] Figure 5 It is a schematic diagram of the structure of the inner sheath, the outer sheath, the annular disk and the triangular slope plate of the present invention;

[0041] Figure 6 For the present invention Figure 5 The enlarged view of point B in the middle;

[0042] Figure 7 It is a three-dimensional structural cross-sectional view of the ring table and the slide frame of the present invention;

[0043] Figure 8 For the present invention Figure 7 Enlarged view of point C in the middle;

[0044] Fig. 9 It is a three-dimensional structural cross-sectional view of the limiting shell and the hoop of the present invention;

[0045] Fig.10 It is an exploded view of the hoop, control rack and elliptical wheel of the present invention.

[0046] In the figure: 1, furnace body; 2, furnace cover; 3, electrode; 4, switch; 41, sleeve; 42, moving seat; 43, cylinder; 44, outer jacket; 45, inner jacket; 46, outer ring; 47, inner ring; 48, spiral pattern; 49, convex teeth; 410, spiral groove; 411, material distribution component; 4111, interface; 4112, telescopic tube; 4113, ring platform; 4114, annular disk; 4115, triangular slope plate; 4116, ring gear; 4117, horizontal slide groove; 4118, slide frame; 4119, 4120, 4121, 4122, 4123, 4124, 4125, 4126, 4127, 4128, 4129, 4130, 4131, 4132, 4133, 4134, 4135, 4136, 4137, 4138, 4139, 4140, 4141, 4142, 4143, 4144, 4145, 4146, 4147, 4148, 4149, 4150, 4151, 4152, 4153, 4154, 4155, 4156, 4157, 4158, 4159, 4160, 4161, 4162, 4163, 4164, 4165, 4166, 4167, 4168, 4169, 4170, 4171, 4172, 417 119. rotating shaft; 41110. tooth surface; 41111. hoop; 41112. control rack; 41113. through slot; 41114. elliptical wheel; 41115. connecting shaft; 41116. buckle; 41117. electrode cleaning assembly; 411171. hanging ear; 411172. rotating slot; 411173. connecting plate; 411174. vertical slide slot; 411175. sliding sleeve; 411176. sliding rod; 411177. limiting shell; 411178. spring. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical staff in this field without creative work are within the scope of protection of the present invention.

[0048] See also Figures 1 to 10 The present invention provides a technical solution: a calcining device for corundum abrasive, comprising a furnace body 1, the top of the furnace body 1 is set as an open structure, and a furnace cover 2 is fixedly installed on the top of the furnace body 1, two groups of electrodes 3 are arranged on the furnace cover 2, and a single group of electrodes 3 is set to three, and a switch 4 is arranged on the two groups of electrodes 3 and the furnace cover 2.

[0049] The switcher 4 includes a sleeve 41 arranged on the furnace cover 2, and a moving seat 42 is slidably connected inside the sleeve 41. A cylinder 43 is fixedly installed on the top of the furnace cover 2 through a bracket, and the telescopic end of the cylinder 43 is fixedly connected to the moving seat 42.

[0050] Three outer sheaths 44 and three inner sheaths 45 corresponding to the two groups of electrodes 3 are movably inserted on the furnace cover 2, and the three outer sheaths 44 and the three inner sheaths 45 are in a spaced annular array, and the two groups of electrodes 3 are fixedly inserted in the three outer sheaths 44 and the three inner sheaths 45.

[0051] The top of the furnace cover 2 is rotatably connected with an outer ring 46 and an inner ring 47 , and the outer ring 46 is located at the outer rings of the three outer sheaths 44 , and the inner ring 47 is located at the inner rings of the three inner sheaths 45 .

[0052] The inner ring of the outer ring 46 and the outer ring of the inner ring 47 are both provided with spiral patterns 48, and the spiral direction of the inner ring spiral patterns 48 is opposite to that of the outer ring spiral patterns 48. Both sides of the surface of the movable seat 42 are fixedly provided with convex teeth 49 respectively used in conjunction with the spiral patterns 48 on both sides. The starting cylinder 43 drives the movable seat 42 to move downward, and the convex teeth 49 on its surface push the inner ring 47 and the outer ring 46 to rotate in opposite directions along the spiral patterns 48 on both sides.

[0053] Spiral grooves 410 are provided on the outer side of the surface of the outer sheath 44 and the inner side of the surface of the inner sheath 45, and the spiral grooves 410 on the outer sheath 44 cooperate with the spiral patterns 48 on the outer ring 46, and the spiral grooves 410 on the inner sheath 45 cooperate with the spiral patterns 48 on the inner ring 47. When the inner ring 47 and the outer ring 46 rotate in opposite directions, the inner ring 47 uses the spiral patterns 48 to push the inner sheath 45 and the corresponding electrode 3 downward, and the outer ring 46 uses the spiral patterns 48 to push the outer sheath 44 and the corresponding electrode 3 upward.

[0054] The furnace body 1 is provided with a material distribution component 411 which matches with the outer sheath 44 and the inner sheath 45 .

[0055] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, the material distribution assembly 411 includes an interface 4111 fixedly mounted on the furnace cover 2 and communicating with the interior of the furnace body 1 , and a telescopic tube 4112 is fixedly mounted at the bottom end of the interface 4111 , and the telescopic tube 4112 is used to inject material into the furnace body 1 before calcination.

[0056] A ring platform 4113 is provided on the upper side of the furnace body 1, and a ring disk 4114 is rotatably connected to the ring platform 4113. The ring disk 4114 is located outside the two groups of electrodes 3, and a triangular slope plate 4115 is fixedly installed on the top of the ring disk 4114 and is used alternately with the outer sheath 44 and the inner sheath 45. The triangular slope plates 4115 are arranged in a circular array.

[0057] The outer ring of the annular disk 4114 is provided with ring teeth 4116 .

[0058] The inner circle of the ring table 4113 is provided with six transverse grooves 4117 opposite to the telescopic tube 4112, and the transverse grooves 4117 are located in the area between two adjacent electrodes 3. A slide 4118 with a rack is slidably connected in the transverse grooves 4117. A rotating shaft 4119 corresponding to the slide 4118 is rotatably provided on the ring table 4113, and tooth surfaces 41110 are provided at both ends of the rotating shaft 4119. The upper tooth surfaces 41110 on the six rotating shafts 4119 are alternately meshed with the ring teeth 4116, and the lower tooth surfaces 41110 are meshed with the rack on the slide 4118.

[0059] A semi-ring structured hoop 41111 is provided at one end of the slide 4118 away from the ring platform 4113, and a control rack 41112 is movably inserted through the surface of the hoop 41111 on one side opposite to the telescopic tube 4112, a through groove 41113 is provided on the hoop 41111, and an elliptical wheel 41114 is provided in the through groove 41113, the elliptical wheel 41114 is rotatably connected along the through groove 41113 by a connecting shaft 41115, and a tooth pattern is provided at the bottom end of the connecting shaft 41115 and meshes with the control rack 41112 after passing through the hoop 41111. During the process of the inner sleeve 45 and the outer sleeve 44 moving downward alternately, the downwardly moving sleeve bottom squeezes the annular disk 4114 to rotate along the triangular slope plate 4115, and the ring teeth 4116 of the outer ring are meshed with the six rotating shafts 4119 one by one for transmission, so that the six slides 4118 are pushed out one by one in sequence to slide toward the telescopic tube 4112.

[0060] The two sides of the hoop 41111 are slidably connected with buckles 41116, and one end of the buckle 41116 extends into the through groove 41113 to cooperate with the elliptical wheel 41114. When the slide 4118 is pushed out one by one in sequence and slides toward the telescopic tube 4112, the slide 4118 fits the hoop 41111 to the outside of the telescopic tube 4112, so that the control rack 41112 is squeezed and displaced by the telescopic tube 4112, and the elliptical wheel 41114 is pushed to rotate along the connecting shaft 41115. The protruding part of the elliptical wheel 41114 pushes the buckle 41116 to slide out and lock the telescopic tube 4112. When the slide 4118 retracts and resets, the telescopic tube 4112 is pulled from the center of the furnace body 1 to the edge part, until the control rack 41112 contacts the ring table 4113 and is pushed back, the elliptical wheel 41114 rotates to unlock the buckle 41116, and the telescopic tube 4112 automatically resets to the center.

[0061] An electrode cleaning assembly 41117 is provided on the furnace body 1, the ring table 4113, the slide 4118 and the ring hoop 41111.

[0062] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10As shown, the electrode cleaning assembly 41117 includes a hanging ear 411171 fixed on the side surface of the ring table 4113, and a rotation groove 411172 is opened on the side surface of the furnace body 1 for the hanging ear 411171 to pass through. The hanging ear 411171 is used to drive the ring table 4113 to rotate, so that the hoop 41111 is converted from between the two electrodes 3 to the alignment electrode 3.

[0063] The end of the slide 4118 is fixedly connected to a connecting plate 411173, and the surface of the connecting plate 411173 is provided with two vertical sliding grooves 411174, and a sliding sleeve 411175 is slidably connected in the vertical sliding groove 411174 along the up and down directions.

[0064] Two sliding rods 411176 are fixedly connected to the side surface of the hoop 41111 , and the sliding rods 411176 are slidably connected in the sliding sleeve 411175 .

[0065] The side of the connecting plate 411173 opposite to the hoop 41111 is fixedly connected to the limiting shell 411177, and the inner wall of the limiting shell 411177 is set as an inclined plate matched with the slide bar 411176, and the inner part of the limiting shell 411177 is provided with a spring 411178 matched with the slide bar 411176, and the spring 411178 pushes the slide bar 411176 to move upward, and the hoop 41111 moves toward the center of the furnace body 1. When the position moves, it fits against the surface of the electrode 3, and the continuously moving slide 4118 squeezes the ring hoop 41111 relative to the fixed electrode 3, so that the ring hoop 41111 is translated along the connecting plate 411173 through the slide rod 411176. During this process, the slide rod 411176 is constrained by the inclined plate, and the spring sheet 411178 is compressed by the sliding sleeve 411175 and then moves downward, that is, the ring hoop 41111 moves downward and scrapes along the surface of the electrode 3.

[0066] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, the side surfaces of the inner sheath 45 and the outer sheath 44 are fixedly connected with a pressure block that matches the triangular slope plate 4115. When the inner sheath 45 and the outer sheath 44 move downward, the pressure block contacts the triangular slope plate 4115 to avoid damage to the triangular slope plate 4115 caused by self-contact squeezing.

[0067] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, a receiving ring matching with the slide 4118 is fixedly provided on the outside of the furnace body 1, and the interior of the receiving ring is connected with the furnace body 1. When the slide 4118 moves away from the telescopic tube 4112, it slides into the receiving ring.

[0068] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, a tension spring connected to the slide 4118 is provided in the accommodating ring. When the slide 4118 moves toward the telescopic tube 4112, the tension spring is stretched. After the ring tooth 4116 is separated from the rotating shaft 4119, the tension spring pulls the slide 4118 to return to its original position.

[0069] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, a ball is rotatably embedded in the end of the slide bar 411176 on one side relative to the inclined plate. The rolling ball creates rolling friction between the slide bar 411176 and the inclined plate, avoiding excessive wear caused by hard friction and improving the smoothness of the pressure of the slide bar 411176.

[0070] A method for using a calcining device for a corundum abrasive comprises the following steps:

[0071] S1. Pour the raw material to be calcined into the furnace body 1, connect one set of electrodes 3, and then supply power to start the arc for calcination.

[0072] S2. After the primary calcination is completed or the operating electrode 3 fails, the cylinder 43 is started to drive the moving seat 42 to move downward, and the convex teeth 49 on its surface push the inner ring 47 and the outer ring 46 to rotate in opposite directions along the spiral patterns 48 on both sides. During this process, the inner ring 47 uses the spiral patterns 48 to push the inner sheath 45 and the corresponding electrode 3 downward, and the outer ring 46 uses the spiral patterns 48 to push the outer sheath 44 and the corresponding electrode 3 upward.

[0073] S3. Before calcination, the furnace body 1 is filled with materials by using the telescopic tube 4112. During the process of the inner and outer sleeves 45 and 44 moving downward alternately, the bottom of the sleeve moving downward squeezes the annular disk 4114 along the triangular slope plate 4115 to rotate, and the ring teeth 4116 of the outer ring are meshed with the six rotating shafts 4119 one by one, so that the six slides 4118 are pushed out one by one in sequence and slide toward the telescopic tube 4112. During this process, the slide 4118 makes the hoop 41111 fit the outer side of the telescopic tube 4112, so that the control rack 411 12 is squeezed and displaced by the telescopic tube 4112, and pushes the elliptical wheel 41114 to rotate along the connecting shaft 41115. The protruding part of the elliptical wheel 41114 pushes the buckle 41116 to slide out of the locking telescopic tube 4112. When the slide 4118 retracts and resets, the telescopic tube 4112 is pulled from the center of the furnace body 1 to the edge part until the control rack 41112 contacts the ring table 4113 and is pushed back. The elliptical wheel 41114 rotates to unlock the buckle 41116, and the telescopic tube 4112 automatically resets to the center.

[0074] S4. After calcination is completed, the ear 411171 is used to push the ring table 4113 to rotate, so that the ring hoop 41111 is converted from being aligned between the two electrodes 3 to being aligned with the electrode 3. At this time, when the ring hoop 41111 moves toward the center of the furnace body 1, it is attached to the surface of the electrode 3. The continuously moving slide 4118 and the fixed electrode 3 relatively squeeze the ring hoop 41111, so that the ring hoop 41111 is translated along the connecting plate 411173 through the slide rod 411176. During this process, the slide rod 411176 is constrained by the inclined plate, and the spring sheet 411178 is compressed by the slide sleeve 411175 and then moved downward, that is, the ring hoop 41111 moves downward and scrapes along the surface of the electrode 3.

[0075] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A calcining device for corundum abrasive, comprising a furnace body (1), characterized in that: The top of the furnace body (1) is configured as an open structure, and a furnace cover (2) is fixedly mounted on the top of the furnace body (1); two groups of electrodes (3) are arranged on the furnace cover (2), and a single group of electrodes (3) is configured as three electrodes; a switch (4) is arranged on the two groups of electrodes (3) and the furnace cover (2); The switch (4) comprises a sleeve (41) arranged on the furnace cover (2), and a movable seat (42) is slidably connected inside the sleeve (41); a cylinder (43) is fixedly mounted on the top of the furnace cover (2) via a bracket, and a telescopic end of the cylinder (43) is fixedly connected to the movable seat (42); The furnace cover (2) is movably interspersed with three outer sheaths (44) and three inner sheaths (45) corresponding to the two groups of electrodes (3), and the three outer sheaths (44) and the three inner sheaths (45) are in an annular array at intervals, and the two groups of electrodes (3) are fixedly interspersed in the three outer sheaths (44) and the three inner sheaths (45); The top of the furnace cover (2) is rotatably connected to an outer ring (46) and an inner ring (47), and the outer ring (46) is located on the outer rings of the three outer sheaths (44), and the inner ring (47) is located on the inner rings of the three inner sheaths (45); The inner ring of the outer ring (46) and the outer ring of the inner ring (47) are both provided with spiral patterns (48), and the spiral directions of the inner and outer spiral patterns (48) are opposite to each other. Both sides of the surface of the movable seat (42) are fixedly provided with convex teeth (49) respectively used in conjunction with the spiral patterns (48) on both sides. The outer side of the surface of the outer sheath (44) and the inner side of the surface of the inner sheath (45) are both provided with a spiral groove (410), and the spiral groove (410) on the outer sheath (44) matches with the spiral pattern (48) on the outer ring (46), and the spiral groove (410) on the inner sheath (45) matches with the spiral pattern (48) on the inner ring (47); The furnace body (1) is provided with a material distribution component (411) that matches the outer sheath (44) and the inner sheath (45); The material distribution assembly (411) comprises an interface (4111) fixedly mounted on the furnace cover (2) and communicating with the interior of the furnace body (1), and a telescopic tube (4112) is fixedly mounted at the bottom end of the interface (4111); A ring platform (4113) is provided on the upper side of the interior of the furnace body (1), and a ring disk (4114) is rotatably connected to the ring platform (4113), the ring disk (4114) is located outside the two groups of electrodes (3), and a triangular slope plate (4115) alternately used with the outer sheath (44) and the inner sheath (45) is fixedly installed on the top of the ring disk (4114), and the triangular slope plates (4115) are arranged in a ring array of three; The outer ring of the annular disk (4114) is provided with annular teeth (4116); The inner ring of the ring platform (4113) is provided with six transverse sliding grooves (4117) opposite to the telescopic tube (4112), and the transverse sliding grooves (4117) are located in the area between two adjacent electrodes (3), and a slide frame (4118) with a rack is slidably connected in the transverse sliding grooves (4117), and a rotating shaft (4119) corresponding to the slide frame (4118) is rotatably provided on the ring platform (4113), and tooth surfaces (41110) are provided at both ends of the rotating shaft (4119), and the upper tooth surfaces (41110) on the six rotating shafts (4119) are alternately meshed with the ring teeth (4116), and the lower tooth surfaces (41110) are meshed with the rack on the slide frame (4118); A hoop (41111) with a semi-ring structure is provided at one end of the slide (4118) away from the ring platform (4113), and a control rack (41112) is movably inserted through the surface of the hoop (41111) on the side opposite to the telescopic tube (4112), a through groove (41113) is provided on the hoop (41111), and an elliptical wheel (41114) is provided in the through groove (41113), and the elliptical wheel (41114) is rotatably connected along the through groove (41113) via a connecting shaft (41115), and a tooth pattern is provided at the bottom end of the connecting shaft (41115) and penetrates through the hoop (41111) and then meshes with the control rack (41112); Buckles (41116) are slidably connected to both sides of the hoop (41111), and one end of the buckle (41116) extends into the through groove (41113) to match the elliptical wheel (41114); An electrode cleaning assembly (41117) is provided on the furnace body (1), the ring table (4113), the slide frame (4118) and the ring hoop (41111); The electrode cleaning assembly (41117) comprises a hanging ear (411171) fixed on the side surface of the ring platform (4113), and the side surface of the furnace body (1) is provided with a rotation groove (411172) for the hanging ear (411171) to pass through; The end of the slide (4118) is fixedly connected to a connecting plate (411173), and the surface of the connecting plate (411173) is provided with two vertical sliding grooves (411174), and a sliding sleeve (411175) is slidably connected in the vertical direction in the vertical sliding groove (411174); Two sliding rods (411176) are fixedly connected to the side surface of the hoop (41111), and the sliding rods (411176) are slidably connected in the sliding sleeves (411175); The connecting plate (411173) is fixedly connected to a limiting shell (411177) on one side of the surface opposite to the hoop (41111), and the inner wall of the limiting shell (411177) is configured as an inclined plate that matches the slide bar (411176). A spring leaf (411178) that matches the slide bar (411176) is provided inside the limiting shell (411177), and the spring leaf (411178) pushes the slide bar (411176) to move upward.

2. The calcining device for corundum abrasive according to claim 1, characterized in that: The side surfaces of the inner protective sleeve (45) and the outer protective sleeve (44) are both fixedly connected with a pressing block that matches the triangular slope plate (4115).

3. The calcining device for a corundum abrasive according to claim 2, characterized in that: A receiving ring that matches the slide bracket (4118) is fixedly provided on the outside of the furnace body (1).

4. The calcining device for corundum abrasive according to claim 3, characterized in that: A tension spring connected to the slide (4118) is arranged inside the accommodating ring.

5. The calcining device for corundum abrasive according to claim 4, characterized in that: The end of the sliding rod (411176) relative to the inclined plate is rotatably embedded with a ball.

6. A method for using a calcining device for corundum abrasives, using the calcining device for corundum abrasives as claimed in any one of claims 1 to 5, characterized in that: The steps include: S1, injecting the raw material to be calcined into the furnace body (1), connecting one set of electrodes (3), and then supplying electricity to start the arc for calcination; S2. After the primary calcination is completed or the operating electrode (3) fails, the cylinder (43) is started to drive the movable seat (42) to move downward, and the convex teeth (49) on the surface thereof push the inner ring (47) and the outer ring (46) to rotate in opposite directions along the spiral patterns (48) on both sides. During this process, the inner ring (47) uses the spiral patterns (48) to push the inner sheath (45) and the corresponding electrode (3) downward, and the outer ring (46) uses the spiral patterns (48) to push the outer sheath (44) and the corresponding electrode (3) upward; S3. Before calcination, the furnace body (1) is filled with material by using the telescopic tube (4112). During the process of the inner sleeve (45) and the outer sleeve (44) moving downward alternately, the bottom of the sleeve moving downward squeezes the annular disk (4114) along the triangular slope plate (4115) to rotate, and the ring teeth (4116) of the outer ring are meshed with the six rotating shafts (4119) one by one, so that the six slides (4118) are pushed out one by one in sequence and slide toward the telescopic tube (4112). During this process, the slide (4118) fits the hoop (41111) on the outside of the telescopic tube (4112), so that the control rack (4111) 2) being squeezed and displaced by the telescopic tube (4112), and pushing the elliptical wheel (41114) to rotate along the connecting shaft (41115), the protruding portion of the elliptical wheel (41114) pushing the buckle (41116) to slide out of the locking telescopic tube (4112), and when the slide (4118) retracts and resets, the telescopic tube (4112) is pulled from the center of the furnace body (1) to the edge portion until the control rack (41112) contacts the ring table (4113) and is pushed back, the elliptical wheel (41114) rotates to unlock the buckle (41116), and the telescopic tube (4112) automatically resets to the center; S4. After calcination is completed, the ring table (4113) is driven to rotate by the hanging ear (411171), so that the hoop (41111) is converted from being positioned between the two electrodes (3) to being aligned with the electrode (3). At this time, when the hoop (41111) moves toward the center of the furnace body (1), it is attached to the surface of the electrode (3). The continuously moving slide (4118) and the fixed electrode (3) relatively squeeze the hoop (41111), so that the hoop (41111) is translated along the connecting plate (411173) through the slide rod (411176). During this process, the slide rod (411176) is constrained by the inclined plate, and the slide sleeve (411175) is used to compress the spring sheet (411178) and then move downward, that is, the hoop (41111) moves downward and scrapes along the surface of the electrode (3).

Images