Visual inspection equipment and preparation process of closed-pore ceramic prepared from lithium mica tailings

Abstract

The application provides a closed-pore ceramic visual detection equipment prepared from lithium mica tailings and a preparation process, relates to the technical field of visual detection, and comprises two mounting frames, a ceramic overturning mechanism and a visual detection mechanism. The ceramic overturning mechanism comprises rotating rollers which are longitudinally rotationally connected to the interiors of the two mounting frames. Two mounting supports are fixedly arranged on the left side of the rotating rollers. Two clamping frames are arranged on the opposite sides of the two mounting supports. Two adjusting screws are rotationally connected to the sides away from each other of the two clamping frames. According to the scheme, the rotating rollers can be adjusted in angle. After cooperation with the visual detection mechanism, three detection modes of the ceramic can be realized, i.e., detection of the back of the ceramic, detection of the front of the ceramic and detection of both sides of the ceramic. The corresponding adjustment and switching can be performed according to the detection requirements, the flexibility and adaptability of visual detection of the ceramic are improved, and the optical detection of the ceramic by an auxiliary industrial camera is facilitated.

Description

TECHNICAL FIELD

[0001] The application relates to the field of visual detection, in particular to a closed-pore ceramic prepared from lithium mica tailings and a preparation process. BACKGROUND

[0002] Lithium mica tailings are main solid wastes after lithium extraction, and the traditional stacking treatment method not only causes resource waste, but also brings about serious environmental pollution risk, and it is of great significance to realize resource recycling and environmental protection to prepare closed-pore ceramics from lithium mica tailings, and the closed-pore ceramics need to be visually detected by using an industrial camera after preparation, so as to provide intuitive and accurate judgment basis for quality control of the closed-pore ceramics.

[0003] In the related art, after the closed-pore ceramics are prepared from the lithium mica tailings, the surface and the near surface of the closed-pore ceramics need to be visually detected by using the industrial camera. However, when the existing part of the closed-pore ceramic visual detection equipment is used, it is inconvenient to assist the industrial camera in optically detecting the back surface of the closed-pore ceramics, and the back surface of the ceramics may also have fatal defects that affect the structural integrity and use safety of the product. If secondary feeding is adopted to detect the back surface of the closed-pore ceramics, the detection efficiency of the closed-pore ceramics will be directly low.

[0004] Therefore, it is necessary to provide a closed-pore ceramic visual detection equipment prepared from lithium mica tailings and a preparation process to solve the above technical problems. SUMMARY

[0005] The application provides a closed-pore ceramic visual detection equipment prepared from lithium mica tailings and a preparation process, which solves the problem that the existing part of the closed-pore ceramic visual detection equipment is inconvenient to assist the industrial camera in optically detecting the back surface of the closed-pore ceramics when the equipment is used.

[0006] To solve the above technical problems, the closed-pore ceramic visual detection equipment prepared from lithium mica tailings provided by the application comprises two mounting frames, a ceramic overturning mechanism and a visual detection mechanism.

[0007] The ceramic overturning mechanism comprises a rotating roller longitudinally connected to the interiors of the two mounting frames, two mounting brackets fixed to the left side of the rotating roller, two clamping frames arranged on the opposite sides of the two mounting brackets, two adjusting screws rotatably connected to the sides away from each other of the two clamping frames, four adjusting screws divided into two groups in front and back and respectively threadedly connected with the two mounting brackets, mounting brackets, clamping frames and adjusting screws mirror arranged on the right side of the rotating roller, a support seat fixed to the back surface of the rear mounting frame, a driving motor arranged on the top of the support seat and used to drive the rotating roller to intermittently rotate, and four through grooves formed in the inner side of the rotating roller.

[0008] The visual detection mechanism comprises two mounting seats fixed on the top of the two mounting racks by bolts, the top of each of the two mounting seats is fixed with an adjusting vertical rod, the surface of each of the two adjusting vertical rods is provided with a first adjusting seat, the opposite side of each of the two first adjusting seats is fixed with an adjusting plate, the inner side of each of the two adjusting plates is fixed with a connecting support through a nut, the right side of the connecting support is fixed with a lamp plate, the top of the rear adjusting vertical rod is provided with a second adjusting seat, the inner side of the second adjusting seat is provided with an adjusting horizontal rod, and the front end of the adjusting horizontal rod is provided with an industrial camera.

[0009] Preferably, when the rotating roller rotates 45 degrees clockwise, two of the through grooves are horizontal to the conveying direction of the ceramic, and the ceramic can be conveyed to the right through the through grooves, and the other two through grooves are vertical to the conveying direction of the ceramic.

[0010] Preferably, the inner side of each of the two adjusting plates is provided with an adjusting groove, the adjusting groove is used for matching the mounting of the connecting support, and the working position and the irradiation angle of the lamp plate can be adjusted through the connecting support by loosening the nut on the surface of the connecting support.

[0011] Preferably, the opposite side of each of the two mounting racks is fixed with a driving mechanism, the driving mechanism comprises two protection racks fixed on the opposite side of the two mounting racks, a rotating shaft is longitudinally rotatably connected to the inner side of each of the two protection racks, a transmission wheel is fixed to the front end of each of the rotating roller and the rotating shaft, a transmission belt is sleeved on the surface of each of the two transmission wheels, two rotating shafts are vertically rotatably connected to the inner side of each of the two mounting racks, a first bevel gear is fixed to the bottom end of each of the two rotating shafts, two second bevel gears are fixed to the surface of the rotating shaft, each of the two second bevel gears is engaged with each of the two first bevel gears, and a cam is fixed to the top of each of the two rotating shafts.

[0012] Preferably, the opposite side of each of the two mounting racks is fixed with a positioning mechanism, the positioning mechanism comprises four guide rods fixed on the opposite side of the two mounting racks, the four guide rods are divided into two groups, a sliding seat is slidably connected to the surface of each of the guide rods, three positioning wheels are rotatably connected to the top of each of the two sliding seats, an adjusting support is fixed to the opposite side of each of the two sliding seats, a contact wheel is arranged in the inner side of each of the two adjusting supports, each of the two contact wheels is in contact with each of the two cams, and a spring is sleeved on the surface of each of the four guide rods.

[0013] Preferably, the circumference of the left transmission wheel is one time of the circumference of the right transmission wheel, when the left transmission wheel rotates half a circle, the right transmission wheel rotates one circle.

[0014] Preferably, the opposite side of the two mounting frames is fixed with a conveying mechanism, the conveying mechanism comprises two side plates fixed on the opposite side of the two mounting frames, two transmission shafts are longitudinally rotatably connected inside the two side plates, two conveying wheels are fixed on the surface of the two transmission shafts, the four conveying wheels are divided into two groups, a conveying belt is sleeved on the surface of each group of conveying wheels, the rear end of the left transmission shaft is rotatably connected with the rear mounting frame, and the back of the rear mounting frame is provided with a conveying motor for driving the left transmission shaft to rotate, the conveying mechanism is mirror image arranged on the left and right sides, and the ceramic overturning mechanism is arranged on the opposite side of the two conveying mechanisms.

[0015] Preferably, the inside of the two mounting frames is longitudinally rotatably connected with a cleaning mechanism, the cleaning mechanism comprises a cleaning roller which is longitudinally rotatably connected inside the two mounting frames, a belt pulley is fixed on the surface of the cleaning roller and the left transmission shaft, and a belt is sleeved on the surface of the two belt pulleys.

[0016] Preferably, the bottom of the two mounting frames is fixed with a support frame, a plurality of support feet are fixed on the bottom of the support frame, and a mounting groove is formed in the inside of each support foot.

[0017] A closed-pore ceramic preparation process prepared from lithium mica tailings, comprising the following steps:

[0018] Step S1, using a jaw crusher to crush the lithium mica tailings, and classifying the particle size through a 200-mesh standard sieve to ensure that the particle size is concentrated in 100-200 meshes;

[0019] Step S2, uniformly spreading the lithium mica tailings in an aluminum oxide crucible and placing it in a box-type resistance furnace to heat up to 600-700℃ at a rate of 5℃ / min, and keeping the temperature for 3 hours;

[0020] Step S3, naturally cooling to room temperature to obtain a defluorinated tailings, and sending the sample for detection to ensure that the fluorine content is ≤0.1wt%;

[0021] Step S4, mixing the roasted tailings with anhydrous ethanol according to a mass ratio of 1:2, adding zirconium oxide grinding balls, and placing them in a planetary ball mill at a speed of 300rpm for 8 hours with a ball-to-material ratio of 10:1;

[0022] Step S5, sieving the slurry through a 400-mesh sieve to ensure that the particle size is uniformly distributed with D50≤3μm;

[0023] Step S6, after sieving the Al2O3 nano powder through a 200-mesh sieve, drying it at 120℃ for 2 hours to remove adsorbed water, then adding the nano powder into ethanol with a solid-to-liquid ratio of 1:10, and ultrasonic treating for 30 minutes to break the agglomeration, and standby;

[0024] Step S7, slowly add gamma-aminopropyl triethoxysilane into the ethanol-water mixture, magnetically stir for 10 minutes, drop acetic acid to pH=4.5, continue to stir for 30 minutes, hydrolysis generates Si-OH active group, obtain hydrolysis silane coupling agent KH550 solution;

[0025] Step S8, drop the hydrolysis silane coupling agent KH550 solution obtained in step S7 into the Al2O3 suspension, mechanically stir for 2 hours;

[0026] Step S9, add ammonia to adjust pH to 7-8, terminate the reaction;

[0027] Step S10, centrifugal washing with ethanol for 3 times to remove unreacted KH550, vacuum drying at 60 DEG C for 12 hours, and obtain modified Al2O3 nanopowder through 200 mesh screen;

[0028] Step S11, mix the tailings and the modified Al2O3 nanopowder according to preset proportions 6:4, 7:3, 8:2, add 1-2wt% Y2O3, and put into a planetary ball mill for dry grinding for 4 hours;

[0029] Step S12, adopt cold isostatic pressing: 200 MPa isotropic pressing to make a green body;

[0030] Step S13, in air atmosphere, heat to 600 DEG C at 2 DEG C / min, keep for 1 hour, then continue to heat to 900-1100 DEG C, keep for 2 hours, to make the particles preliminary combine, and obtain a densified green body;

[0031] Step S14, put the densified green body into hot isostatic pressing sintering, 1300-1400 DEG C, 100-150 MPa N2 atmosphere, keep for 1-2 hours to make it fully densified and form closed pores;

[0032] Step S15, polish the surface oxide layer of the lithium mica tailings closed pore ceramic;

[0033] Step S16, visually detect the surface of the lithium mica tailings closed pore ceramic.

[0034] Compared with the related art, the lithium mica tailings closed pore ceramic visual detection equipment and preparation process provided by the application has the following beneficial effects:

[0035] After the ceramic is fed into the two clamping frames on the left, the rotating roller and mounting bracket drive the two clamping frames and the ceramic to rotate 180 degrees clockwise, so that the back of the ceramic faces upwards. The back of the ceramic is then visually inspected using a light panel and an industrial camera, eliminating the need for secondary loading and effectively improving the inspection efficiency. Furthermore, by adjusting the angle of the rotating roller in conjunction with the visual inspection mechanism, three inspection methods can be performed on the ceramic: inspecting the back of the ceramic, inspecting the front of the ceramic, and inspecting both sides of the ceramic. These methods can be adjusted and switched according to inspection needs, improving the flexibility and adaptability of visual inspection of ceramics and facilitating optical inspection of ceramics using an industrial camera. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0037] Figure 1 The optimal structural schematic diagram provided for this invention;

[0038] Figure 2 This is a schematic diagram of the structure of the ceramic flipping mechanism provided by the present invention;

[0039] Figure 3 for Figure 2 The diagram shows the state in which the rotating roller drives the mounting bracket and clamping frame to rotate clockwise.

[0040] Figure 4 for Figure 2 The rotating roller drives the mounting bracket and clamping frame to rotate 45 degrees clockwise, and the two through slots are horizontal with the ceramic conveying direction as shown in the schematic diagram.

[0041] Figure 5 This is a schematic diagram of the structure of the visual inspection mechanism provided by the present invention;

[0042] Figure 6 A schematic diagram of the drive mechanism provided by the present invention;

[0043] Figure 7 A schematic diagram of the positioning mechanism provided by the present invention;

[0044] Figure 8 A schematic diagram showing the state in which two cams rotate and two sliding seats move to opposite sides via a contact wheel and an adjusting bracket, as provided by the present invention.

[0045] Figure 9 Structure diagram of the conveying mechanism provided by the present application;

[0046] Figure 10 Structure diagram of the cleaning mechanism provided by the present application;

[0047] Figure 11 Process flow diagram of the preparation process provided by the present application.

[0048] Explanation of reference numerals:

[0049] 1, mounting frame;

[0050] 2, ceramic overturning mechanism; 21, rotating roller; 22, mounting support; 23, clamping frame; 24, adjusting screw; 25, supporting seat; 26, driving motor;

[0051] 3, visual detection mechanism; 31, mounting seat; 32, adjusting vertical rod; 33, first adjusting seat; 34, adjusting plate; 35, connecting support; 36, lamp plate; 37, second adjusting seat; 38, adjusting horizontal rod; 39, industrial camera;

[0052] 4, driving mechanism; 41, protection frame; 42, rotating shaft; 43, transmission wheel; 44, transmission belt; 45, rotating shaft; 46, first bevel gear; 47, second bevel gear; 48, cam;

[0053] 5, positioning mechanism; 51, guide rod; 52, sliding seat; 53, positioning wheel; 54, adjusting support; 55, contact wheel; 56, spring;

[0054] 6, conveying mechanism; 61, side plate; 62, transmission shaft; 63, conveying wheel; 64, conveying belt; 65, conveying motor;

[0055] 7, cleaning mechanism; 71, cleaning roller; 72, pulley; 73, belt;

[0056] 8, supporting frame; 9, supporting leg. DETAILED DESCRIPTION

[0057] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0058] The present application provides a closed-pore ceramic visual detection equipment prepared from lithium mica tailings and a preparation process.

[0059] First embodiment:

[0060] Please refer to Figures 1 to 5 A closed pore ceramic visual inspection equipment prepared from lithium mica tailings, comprising two mounting frames 1, a ceramic overturning mechanism 2 and a visual inspection mechanism 3;

[0061] The ceramic overturning mechanism 2 comprises a rotating roller 21 longitudinally connected to the inside of the two mounting frames 1, two mounting supports 22 fixed on the left side of the rotating roller 21, two clamping frames 23 provided on the opposite side of the two mounting supports 22, two adjusting screws 24 rotatably connected to the side away from each other of the two clamping frames 23, and four adjusting screws 24 divided into two groups in front and back, respectively threadedly connected with the two mounting supports 22, and the mounting supports 22, clamping frames 23 and adjusting screws 24 are mirror-imaged provided on the right side of the rotating roller 21, a support seat 25 is fixed on the back of the rear mounting frame 1, a driving motor 26 for driving the rotating roller 21 to rotate intermittently is provided on the top of the support seat 25, and four through grooves are formed in the inner side of the rotating roller 21;

[0062] The visual inspection mechanism 3 comprises two mounting seats 31 fixed on the top of the two mounting frames 1 by bolts, an adjusting vertical rod 32 fixed on the top of each of the two mounting seats 31, a first adjusting seat 33 provided on the surface of each of the two adjusting vertical rods 32, an adjusting plate 34 fixed on the opposite side of each of the two first adjusting seats 33, a connecting support 35 fixed on the inner side of each of the two adjusting plates 34 by nuts, a lamp plate 36 fixed on the right side of the connecting support 35, a second adjusting seat 37 provided on the top of the rear adjusting vertical rod 32, an adjusting horizontal rod 38 provided in the inside of the second adjusting seat 37, and an industrial camera 39 provided on the front end of the adjusting horizontal rod 38.

[0063] When the rotating roller 21 rotates clockwise by 45 degrees, two of the through grooves are in a horizontal state with the conveying direction of the ceramic, and the ceramic can be conveyed to the right through the through grooves, and the other two through grooves are in a vertical state with the conveying direction of the ceramic.

[0064] Adjusting grooves are formed in the inner side of each of the two adjusting plates 34, and the adjusting grooves are used for mounting the connecting support 35, and the working position and irradiation angle of the lamp plate 36 can be adjusted through the connecting support 35 by loosening the nuts on the surface of the connecting support 35;

[0065] Please combine Figures 2 to 4 : When the ceramic is conveyed into the inner side of the two clamping frames 23 on the left side, the driving motor 26 is started to drive the rotating roller 21 to rotate, the rotating roller 21 rotates to drive the clamping frames 23 to rotate clockwise by 180 degrees through the mounting supports 22 on both sides, and the ceramic is overturned by 180 degrees through the clockwise rotation of the clamping frames 23, so that the back of the ceramic faces upward.

[0066] Further, the driving motor 26 is started, the driving motor 26 drives the rotating roller 21 to rotate clockwise by 45 degrees, so that two through grooves are in the same horizontal line with the ceramic conveying direction, and then the ceramic can be conveyed to the right with the front face upward;

[0067] Please combine Figure 5 : When the ceramic is turned clockwise by 180 degrees and continuously conveyed to the bottom of the lamp plate 36 and the industrial camera 39, the ceramic is lighted by the lamp plate 36, and the back of the ceramic is imaged by the industrial camera 39, and then the image is processed by the image processing software, so that the back of the ceramic is visually detected;

[0068] Further, when the two through grooves of the rotating roller 21 are in the same horizontal line with the ceramic conveying direction, the ceramic passes through the rotating roller 21 and continuously conveys to the right, and the front of the ceramic can be visually detected by the industrial camera 39;

[0069] Further, the left side of the two mounting frames 1 is provided with a mounting hole for cooperating with the visual detection mechanism 3, when the visual detection mechanism 3 is mounted on the left side of the mounting frame 1 through the mounting hole, the front of the ceramic can be detected by the left visual detection mechanism 3, and when the front of the ceramic is detected and conveyed to the right, the ceramic is turned clockwise by 180 degrees by the ceramic turning mechanism 2, so that the back of the ceramic can be visually detected by the right visual detection mechanism 3;

[0070] Preferably, by adjusting the screw rod 24, the distance between the two clamping frames 23 can be adjusted according to the size of the ceramic.

[0071] In this embodiment, when the ceramic is conveyed into the two clamping frames 23 on the left side, the left two clamping frames 23 and the ceramic are driven by the rotating roller 21 and the mounting bracket 22 to rotate clockwise by 180 degrees, so that the back of the ceramic faces upward, and the back of the ceramic is visually detected by the lamp plate 36 and the industrial camera 39, without the need for secondary feeding of the ceramic, which can effectively improve the detection efficiency of the ceramic, and by adjusting the angle of the rotating roller 21 and cooperating with the visual detection mechanism 3, three detection modes of the ceramic can be generated, which are detecting the back of the ceramic, detecting the front of the ceramic and detecting both sides of the ceramic, and the detection requirements can be adjusted and switched accordingly, which improves the flexibility and adaptability of the visual detection of the ceramic, and facilitates the optical detection of the ceramic by the industrial camera 39.

[0072] Second embodiment:

[0073] Please refer to Figures 6 to 9, two sides of the two mounting frames 1 away from each other are fixedly provided with a driving mechanism 4, the driving mechanism 4 comprises two protection frames 41 fixedly provided on two sides of the two mounting frames 1 away from each other, the inside of the two protection frames 41 is longitudinally rotatably connected with a rotating shaft 42, the front end of the rotating roller 21 and the rotating shaft 42 are fixedly provided with a transmission wheel 43, the surface of the two transmission wheels 43 is sleeved with a transmission belt 44, the inside of the two mounting frames 1 is perpendicularly rotatably connected with two rotating shafts 45, the bottom end of the two rotating shafts 45 is fixedly provided with a first bevel gear 46, the surface of the rotating shaft 42 is fixedly provided with two second bevel gears 47, the two second bevel gears 47 are respectively engaged with the two first bevel gears 46, and the top of the two rotating shafts 45 is fixedly provided with a cam 48.

[0074] Two opposite sides of the two mounting frames 1 are fixedly provided with a positioning mechanism 5, the positioning mechanism 5 comprises four guide rods 51 fixedly provided on two opposite sides of the two mounting frames 1, the four guide rods 51 are divided into two groups, the surface of each group of the guide rods 51 is slidably connected with a sliding seat 52, the top of the two sliding seats 52 is rotatably connected with three positioning wheels 53, the side of the two sliding seats 52 away from each other is fixedly provided with an adjusting support 54, the inside of the two adjusting supports 54 is provided with a contact wheel 55, the two contact wheels 55 are respectively in contact with the two cams 48, and the surface of the four guide rods 51 is sleeved with a spring 56.

[0075] The circumference of the left transmission wheel 43 is one time of the right transmission wheel 43, when the left transmission wheel 43 rotates half a circle, the right transmission wheel 43 rotates one circle;

[0076] Please combine Figure 6 : when the rotating roller 21 rotates 180 degrees clockwise, the left transmission wheel 43 will be driven to rotate half a circle, the right transmission wheel 43 is driven to rotate one circle through the transmission belt 44, the right transmission wheel 43 drives the two second bevel gears 47 to rotate one circle through the rotating shaft 42, the two second bevel gears 47 drive the two rotating shafts 45 to rotate one circle through the two first bevel gears 46, and the two rotating shafts 45 drive the two cams 48 to rotate one circle respectively;

[0077] Please combine Figure 7 and Figure 8 : in the process of rotating one circle, the two cams 48 will respectively drive the two sliding seats 52 to move to the opposite side through the two contact wheels 55 and the adjusting supports 54, the two sliding seats 52 move to the opposite side to drive the plurality of positioning wheels 53 to move to the opposite side, so that the positioned ceramic after turning is moved to the right according to the preset track;

[0078] Further, when the two cams 48 rotate a circle, the two sliding seats 52 are reset under the action of the spring 56, so that the two sliding seats 52 drive the positioning wheels 53 to reset, preparing to position the next ceramic;

[0079] Further, when the device switches to the state of detecting only the front of the ceramic, and the two through grooves are in the same horizontal line with the ceramic conveying direction, the transmission belt 44 can be removed, so that the ceramic is conveyed to the right according to the conveying track. When the device switches to the state of detecting only the front of the ceramic, and the two through grooves are in the same horizontal line with the ceramic conveying direction, the sliding seat 52 and the positioning wheel 53 can be driven to position the ceramic conveyed to the right by rotating the roller 21 clockwise by 180 degrees.

[0080] In the embodiment, when the ceramic is flipped clockwise by 180 degrees, so that the back of the ceramic faces up and is conveyed to the right for visual detection, the roller 21 rotates half a circle to drive the right transmission wheel 43, the rotating shaft 42 and the second bevel gear 47 to rotate a circle, so as to drive the rotating shaft 45 and the cam 48 to rotate a circle through the first bevel gear 46. In the process of rotating a circle of the cam 48, the two sliding seats 52 are pushed to move to the opposite side through the contact wheel 55 and the adjusting bracket 54, and the plurality of positioning wheels 53 are driven by the two sliding seats 52 to position the ceramic conveyed to the right. The flipped ceramic can be calibrated, the visual detection effect of the industrial camera 39 on the back of the ceramic is improved, and when the detection state of the ceramic is adjusted, the working state of the positioning mechanism 5 can also be adjusted accordingly, so as to adapt to the current detection state of the ceramic.

[0081] Third embodiment:

[0082] Please refer to Figure 1 , Figure 9 and Figure 10 , the opposite side of the two mounting frames 1 is fixedly provided with a conveying mechanism 6, the conveying mechanism 6 comprises two side plates 61 fixedly provided on the opposite side of the two mounting frames 1, two transmission shafts 62 are longitudinally rotatably connected in the interiors of the two side plates 61, two conveying wheels 63 are fixedly provided on the surfaces of the two transmission shafts 62, the four conveying wheels 63 are divided into two groups, the surfaces of the conveying wheels 63 in each group are sleeved with a conveying belt 64, the rear end of the left transmission shaft 62 is rotatably connected with the rear mounting frame 1, and the back surface of the rear mounting frame 1 is provided with a conveying motor 65 for driving the left transmission shaft 62 to rotate, the conveying mechanism 6 is mirror-imaged and provided with two groups, and the ceramic flipping mechanism 2 is arranged on the opposite side of the two groups of conveying mechanisms 6.

[0083] The interior of the two mounting frames 1 is longitudinally rotatably connected with a cleaning mechanism 7, the cleaning mechanism 7 comprises a cleaning roller 71 which is longitudinally rotatably connected to the interior of the two mounting frames 1, the surface of the cleaning roller 71 and the left transmission shaft 62 are both fixedly provided with a belt pulley 72, and the surfaces of the two belt pulleys 72 are sleeved with a belt 73.

[0084] The bottom of the two mounting frames 1 is fixedly provided with a support frame 8, the bottom of the support frame 8 is fixedly provided with a plurality of support feet 9, and the interior of the plurality of support feet 9 is all provided with a mounting groove;

[0085] Please combine Figure 9 : start the conveying motor 65, the conveying belt 64 rotates to drive the two transmission shafts 62 and the plurality of conveying wheels 63 to rotate, when the ceramic is conveyed to the top of the conveying belt 64, the ceramic can be conveyed to the right by the conveying belt 64 through the rotation of the plurality of conveying wheels 63;

[0086] Please combine Figure 10 : when the left transmission shaft 62 rotates, the cleaning roller 71 can be driven to rotate through the belt pulley 72 and the belt 73, and the cleaning roller 71 rotates to clean the back of the ceramic.

[0087] In this embodiment, the transmission shaft 62 is rotated to drive the conveying wheel 63 and the conveying belt 64 to rotate, the ceramic is conveyed to the right, and when the left transmission shaft 62 rotates, the cleaning roller 71 can be driven to rotate through the belt pulley 72 and the belt 73, and the cleaning roller 71 is used to clean the back of the ceramic, remove the dust and tailings on the back of the ceramic, and improve the accuracy of the visual detection of the back of the ceramic by the industrial camera 39.

[0088] Fourth embodiment:

[0089] Please refer to Figure 11 A preparation process of closed-pore ceramic prepared from lithium mica tailings, comprising the following steps:

[0090] Step S1, using a jaw crusher to crush the lithium mica tailings, and performing particle size classification through a 200-mesh standard sieve to ensure that the particle size is concentrated in 100-200 meshes;

[0091] Step S2, uniformly spreading the lithium mica tailings in an aluminum oxide crucible and placing it in a box-type resistance furnace to be heated at a rate of 5℃ / min to 600-700℃, and keeping the temperature for 3 hours;

[0092] Step S3, naturally cooling to room temperature to obtain defluorinated tailings, and sending samples for detection to ensure that the fluorine content is ≤0.1wt%;

[0093] Step S4, mix the roasted tailings with anhydrous ethanol at a mass ratio of 1:2, add zirconium oxide grinding balls, and the ball-to-material ratio is 10:1. Put them in a planetary ball mill at a speed of 300 rpm for 8 hours;

[0094] Step S5, pass the slurry through a 400-mesh sieve to obtain a slurry, and send a sample for detection to ensure that the particle size is uniformly distributed with D50≤3 μm;

[0095] Step S6, after passing the Al2O3 nano powder through a 200-mesh sieve, dry it at 120°C for 2 hours to remove adsorbed moisture, then add the nano powder to ethanol at a solid-to-liquid ratio of 1:10, and ultrasonically treat it for 30 minutes to break the agglomeration, ready for use;

[0096] Step S7, slowly add γ-aminopropyltriethoxysilane to the ethanol-water mixture, magnetically stir for 10 minutes, add acetic acid dropwise to pH=4.5, and continue to stir for 30 minutes to generate Si-OH active groups by hydrolysis, obtaining a hydrolyzed silane coupling agent KH550 solution;

[0097] Step S8, add the hydrolyzed silane coupling agent KH550 solution obtained in step S7 dropwise to the Al2O3 suspension, and mechanically stir for 2 hours;

[0098] Step S9, adjust the pH to 7-8 by adding ammonia to terminate the reaction;

[0099] Step S10, wash with ethanol by centrifugation 3 times to remove unreacted KH550, vacuum dry at 60°C for 12 hours, and pass the modified Al2O3 nano powder through a 200-mesh sieve;

[0100] Step S11, mix the tailings with the modified Al2O3 nano powder at a preset ratio of 6:4, 7:3, and 8:2, and add 1-2 wt% Y2O3, then put them into a planetary ball mill for dry grinding for 4 hours;

[0101] Step S12, use cold isostatic pressing: isotropic pressing at 200 MPa to make a green body;

[0102] Step S13, in an air atmosphere, heat to 600°C at a rate of 2°C / min, keep for 1 hour, then continue to heat to 900-1100°C, keep for 2 hours to preliminarily bond the particles and obtain a densified green body;

[0103] Step S14, put the densified green body into a hot isostatic pressing sintering furnace, heat at 1300-1400°C under a N2 atmosphere at 100-150 MPa, keep for 1-2 hours to fully densify it and form closed pores;

[0104] Step S15, polish the surface oxide layer of the lepidolite tailings closed-pore ceramic;

[0105] Step S16: Visually inspect the closed-pore ceramic surface of lepidolite tailings.

[0106] Preferably, during the reaction in step S8, the Al2O3 surface -OH + KH550 Si-OH → Al-O-Si- covalent bond bonding occurs.

[0107] This embodiment provides a new method for turning lepidolite tailings into valuable resources, achieving high-performance ceramic preparation through a three-step process: Pretreatment and impurity removal: first, high-temperature calcination removes harmful fluorine elements, and then the tailings are ground into ultrafine powder using an environmentally friendly ball milling method; Formula upgrade: a specially formulated silane coupling agent-Al2O3-Y2O3 composite additive is added to help the materials fuse better; Intelligent sintering: hot pressing sintering technology is used to fire strong and lightweight ceramics at a lower temperature, successfully realizing the efficient conversion of lepidolite tailings into high-performance closed-cell ceramics.

[0108] Please refer to the reference again. Figures 1 to 10 The working principle of the visual inspection equipment for closed-cell ceramics prepared from lithium mica tailings provided by this invention is as follows:

[0109] Step S1: Start the conveyor motor 65. The conveyor belt 64 rotates, driving the two drive shafts 62 and multiple conveyor wheels 63 to rotate. When the ceramic is conveyed to the top of the conveyor belt 64, the ceramic can be conveyed to the right by the rotation of the multiple conveyor wheels 63.

[0110] When the left drive shaft 62 rotates, the cleaning roller 71 can be driven to rotate through the pulley 72 and belt 73. The rotation of the cleaning roller 71 cleans the back of the ceramic.

[0111] Step S2: After the ceramic is fed to the right into the inside of the two clamping frames 23 on the left, the drive motor 26 is started. The drive motor 26 rotates and drives the rotating roller 21 to rotate. The rotation of the rotating roller 21 drives the clamping frame 23 to rotate 180 degrees clockwise through the mounting brackets 22 on both sides. The 180-degree clockwise rotation of the clamping frame 23 flips the ceramic so that the back of the ceramic faces up.

[0112] In step S3, when the rotating roller 21 rotates 180 degrees clockwise, it will simultaneously drive the left transmission wheel 43 to rotate half a turn, which in turn drives the right transmission wheel 43 to rotate one turn via the transmission belt 44. The right transmission wheel 43 drives the two second bevel gears 47 to rotate one turn via the rotating shaft 42. The two second bevel gears 47 drive the two rotating shafts 45 to rotate one turn via the two first bevel gears 46. The two rotating shafts 45 then drive the two cams 48 to rotate one turn respectively.

[0113] During one rotation of the two cams 48, the two sliding seats 52 will move to the opposite side through the two contact wheels 55 and the adjusting bracket 54 respectively. The movement of the two sliding seats 52 to the opposite side will drive the multiple positioning wheels 53 to move to the opposite side, thereby positioning the flipped ceramic and allowing the flipped ceramic to move to the right according to the preset trajectory. The flipped ceramic is then transported to the right by the conveying mechanism 6 on the right side.

[0114] Step S4: After the ceramic is conveyed to the right to the bottom of the light panel 36 and the industrial camera 39, the light panel 36 provides supplementary lighting to the ceramic, the industrial camera 39 takes an image of the back of the ceramic, and the image is processed by image processing software to perform visual inspection of the back of the ceramic.

[0115] Step S5: When it is necessary to inspect the front of the ceramic, start the drive motor 26. The drive motor 26 drives the rotating roller 21 to rotate 45 degrees clockwise, so that two of the through grooves are on the same horizontal line as the ceramic conveying direction, so that the ceramic can be conveyed to the right with the front facing up. The industrial camera 39 is used to visually inspect the front of the ceramic.

[0116] When inspecting the front of a ceramic, if it is necessary to position the ceramic being conveyed, the rotating roller 21 can be rotated 180 degrees in a direction where the groove and the ceramic conveying direction are on the same horizontal line. This allows the ceramic to be positioned while being conveyed to the right for visual inspection of the front without affecting the ceramic being conveyed to the right.

[0117] Step S6: When it is necessary to inspect the front and back of the ceramic at the same time, the visual inspection mechanism 3 is installed through the mounting holes on the left side of the two mounting brackets 1. The left visual inspection mechanism 3 can be used to inspect the front of the ceramic, and the right visual inspection mechanism 3 can be used to inspect the back of the ceramic.

[0118] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made under the concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A closed pore ceramic visual inspection apparatus prepared from lithium mica tailings, characterized by, The ceramic turning mechanism comprises a rotating roller longitudinally connected to the interiors of the two mounting racks, two mounting supports fixed to the left side of the rotating roller, two clamping racks provided on the opposite sides of the two mounting supports, two adjusting screws rotatably connected to the sides away from each other of the two clamping racks, four adjusting screws divided into two groups, respectively in threaded connection with the two mounting supports, mounting supports, clamping racks and adjusting screws mirror-set on the right side of the rotating roller, a support seat fixed to the back of the rear mounting rack, a driving motor provided on the top of the support seat for driving the rotating roller to rotate intermittently, and four through-slots provided in the inner side of the rotating roller. The visual detection mechanism comprises two mounting seats fixed to the tops of the two mounting racks by bolts, two adjusting vertical rods fixed to the tops of the two mounting seats, first adjusting seats provided on the surfaces of the two adjusting vertical rods, adjusting plates fixed to the opposite sides of the two first adjusting seats, connecting supports fixed to the inner sides of the two adjusting plates by nuts, lamp plates fixed to the right side of the connecting supports, second adjusting seats provided on the top of the rear adjusting vertical rod, adjusting horizontal rods provided in the interiors of the second adjusting seats, and industrial cameras provided at the front ends of the adjusting horizontal rods. The driving mechanism comprises two protective frames fixed to the sides away from each other of the two mounting racks, a rotating shaft longitudinally connected to the interiors of the two protective frames, driving wheels fixed to the front ends of the rotating roller and the rotating shaft, a driving belt sleeved on the surfaces of the two driving wheels, two rotating shafts perpendicularly rotatably connected to the interiors of the two mounting racks, first bevel gears fixed to the bottom ends of the two rotating shafts, two second bevel gears fixed to the surface of the rotating shaft, the two second bevel gears meshing with the two first bevel gears, and cams fixed to the top of the two rotating shafts. The positioning mechanism comprises four guide rods fixed to the opposite sides of the two mounting racks, the four guide rods being divided into two groups, sliding seats slidingly connected to the surfaces of each group of the guide rods, three positioning wheels rotatably connected to the top of each of the two sliding seats, adjusting supports fixed to the sides away from each other of the two sliding seats, contact wheels provided in the interiors of the two adjusting supports, the two contact wheels respectively contacting with the two cams, and springs sleeved on the surfaces of the four guide rods. When the rotating roller rotates clockwise by 45 degrees, two of the through-slots are in a horizontal state with the conveying direction of the ceramic, and the ceramic can be conveyed to the right through the through-slots, and the other two through-slots are in a vertical state with the conveying direction of the ceramic.

2. The closed pore ceramic visual inspection apparatus prepared from lithium mica tailings according to claim 1, characterized in that, The interiors of the two adjusting plates are provided with adjusting grooves for mounting the connecting supports, the working position and the irradiation angle of the lamp plate can be adjusted by loosening the nuts on the surface of the connecting supports.

3. The closed pore ceramic visual inspection apparatus prepared from lithium mica tailings according to claim 1, characterized in that, The circumference of the left driving wheel is one time of the circumference of the right driving wheel, and when the left driving wheel rotates by half a circle, the right driving wheel rotates by one circle.

4. The closed pore ceramic visual inspection apparatus prepared from lithium mica tailings according to claim 1, characterized in that, ​ 5. The closed pore ceramic visual inspection apparatus prepared from lithium mica tailings according to claim 1, characterized in that, Two opposite sides of the mounting frame are fixedly provided with conveying mechanisms, the conveying mechanism comprises two side plates fixedly provided on the opposite sides of the two mounting frames, two transmission shafts are longitudinally rotatably connected to the interiors of the two side plates, two conveying wheels are fixedly provided on the surfaces of the two transmission shafts, the four conveying wheels are divided into two groups, a conveying belt is sleeved on the surface of each group of conveying wheels, the rear end of the left transmission shaft is rotatably connected to the rear mounting frame, and the back of the rear mounting frame is provided with a conveying motor for driving the left transmission shaft to rotate.

6. The closed pore ceramic visual inspection apparatus prepared from lithium mica tailings according to claim 5, characterized in that, Two cleaning mechanisms are longitudinally rotatably connected to the interiors of the two mounting frames, the cleaning mechanism comprises a cleaning roller which is longitudinally rotatably connected to the interiors of the two mounting frames, and a belt wheel is fixedly provided on the surface of the cleaning roller and the left transmission shaft.

7. The closed pore ceramic visual inspection apparatus prepared from lithium mica tailings according to claim 1, characterized in that, The bottoms of the two mounting frames are fixedly provided with support frames, the bottoms of the support frames are fixedly provided with a plurality of supporting legs, and the interiors of the supporting legs are all provided with mounting grooves.

8. A process for the preparation of a closed-pore ceramic from lithium mica tailings, characterized in that, The closed-pore ceramic preparation process comprises the visual inspection equipment in any one of claims 1-7 and the following steps: Step S1, a jaw crusher is used to crush the lithium mica tailings, and particle size classification is performed through a 200-mesh standard sieve to ensure that the particle size is concentrated in 100-200 meshes; Step S2, the lithium mica tailings are evenly laid in an aluminum oxide crucible and placed in a box-type resistance furnace to be heated to 600-700℃ at a rate of 5℃ / min, and kept for 3 hours; Step S3, natural cooling to room temperature to obtain a defluorinated tailings, and sample detection is performed to ensure that the fluorine content is ≤0.1wt%; Step S4, the roasted tailings and anhydrous ethanol are mixed in a mass ratio of 1:2, zirconium oxide grinding balls are added, the ball-to-material ratio is 10:1, and the mixture is placed in a planetary ball mill at a speed of 300 rpm for 8 hours; Step S5, the slurry is obtained by passing through a 400-mesh sieve, and sample detection is performed to ensure that the particle size is uniformly distributed with D50≤3μm; Step S6, after the Al2O3 nano powder is passed through a 200-mesh sieve, it is dried at 120℃ for 2 hours to remove adsorbed water, then the nano powder is added to ethanol, the solid-to-liquid ratio is 1:10, and ultrasonic treatment is performed for 30 minutes to break the agglomeration, and the modified Al2O3 nano powder is obtained; Step S7, γ-aminopropyltriethoxysilane is slowly added to an ethanol-water mixture, magnetic stirring is performed for 10 minutes, acetic acid is added dropwise to pH=4.5, and stirring is continued for 30 minutes to hydrolyze Si-OH active groups and obtain a hydrolyzed silane coupling agent KH550 solution; Step S8, the hydrolyzed silane coupling agent KH550 solution obtained in step S7 is added dropwise to the Al2O3 suspension, and mechanical stirring is performed for 2 hours; Step S9, ammonia water is added to adjust the pH to 7-8 to terminate the reaction; Step S10, ethanol is used for centrifugal washing three times to remove unreacted KH550, and vacuum drying is performed at 60℃ for 12 hours to obtain modified Al2O3 nano powder by passing through a 200-mesh sieve. Step S11, tailings and modified Al2O3 nano powder are mixed according to a preset ratio of 6:4, 7:3, 8:2, 1-2wt% Y2O3 is added, and it is put into a planetary ball mill for dry grinding for 4 hours; Step S12, cold isostatic pressing: 200 MPa isotropic pressing is adopted to make a green body; Step S13, in an air atmosphere, the temperature is raised to 600℃ at a rate of 2℃ / min, and after 1h of heat preservation, the temperature is continuously raised to 900-1100℃, and the particles are preliminarily combined to obtain a densified green body; Step S14, the densified green body is put into hot isostatic pressing sintering, 1300-1400℃, 100-150 MPa N2 atmosphere, 1-2 hours of heat preservation to make it fully densified and form closed pores; Step S15, polishing the surface oxide layer of the lepidolite tailings closed pore ceramic; Step S16, visual inspection is performed on the surface of the lepidolite tailings closed pore ceramic.

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