A kind of automatic sampling method for aluminum anode

Abstract

The present invention belongs to the technical field of sampling anodes for aluminum electrolysis, and in particular, relates to an automatic sampling method for aluminum anodes, including a sampling device, the sampling device including a sampler, a flipping mechanism, a conveyor, a printer, a sample collector and a sample box, the flipping mechanism is arranged between two adjacent conveyors, and the sample collector is arranged at the bottom of the flipping mechanism; the sampling steps are: the anode to be sampled is sent to the flipping mechanism position by the conveyor, and a printer is arranged to mark the anode to be sampled before the anode enters the flipping mechanism; the flipping mechanism flips the sampled anode 90 degrees, and the sampler performs drilling sampling and sample stripping on the bottom surface of the sampled anode; when the flipping mechanism flips the anode back, the sample automatically falls off to the sample collector; the sample in the sample collector is transported to the sample box, and the sample is set to spray the code to mark the sample before entering the sample box. The sampler is used to complete automatic sampling, stripping and collection, thereby improving the sampling efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of anode sampling for aluminum electrolysis, and in particular relates to an automatic sampling method for aluminum anodes. Background Art

[0002] In the electrolytic aluminum industry, many electrolytic aluminum plants purchase anodes from outside. The quality of the purchased anodes varies due to factors such as different manufacturers and batches. Therefore, each batch of anodes will be sampled proportionally for relevant physical and chemical index tests. Under normal circumstances, 3 samples will be drilled from each sampled anode each time, generally using a drilling machine with an outer diameter of 63mm. The samples are generally cylindrical with a diameter of 50mm and a length of 300-350mm.

[0003] The anode carbon block is a solid solid that has been pre-baked and sintered, with high strength and high compressive and tensile resistance. Fig.12 As shown, the anode 4 is approximately in shape of a cuboid, with a boss and a reserved bowl hole on the top surface, and arc chamfers on the bottom and side edges.

[0004] At present, on-site sampling is done by manual drilling, using a common drilling water drill with a simple bracket for sampling. Water cannot be added during the anode sampling process, and only dry drilling can be used. In addition, during the transportation process, the bottom surface of the anode is transported close to the conveyor, and the drilling position is on the bottom surface of the anode. Therefore, each drilling requires manual operation of the flipping mechanism to flip the anode before it can be carried out. After drilling, it is also necessary to manually knock the drilling position to peel off the sample, which will result in extremely low work efficiency each time the sampling is performed. Summary of the invention

[0005] In view of the technical problems existing in the background technology, the present invention provides an automatic sampling method for aluminum anodes.

[0006] To achieve the above purpose, the technical solution provided by the present invention is:

[0007] An automatic sampling method for aluminum anodes, comprising a sampling device, the sampling device comprising a sampler, a turning mechanism, a conveyor, a printer, a sample collector and a sample box, the turning mechanism being arranged between two adjacent conveyors, and the sample collector being arranged at the bottom of the turning mechanism;

[0008] The sampling steps are:

[0009] The anode to be sampled is sent to the flipping mechanism position by a conveyor, and an inkjet printer is set to mark the anode to be sampled before the anode enters the flipping mechanism; the flipping mechanism flips the sampled anode 90 degrees, and the sampler drills holes on the bottom surface of the sampling anode for sampling and sample peeling; when the flipping mechanism flips the anode back, the sample automatically falls off into the sample collector; the sample in the sample collector is transported to the sample box, and an inkjet printer is set to spray code and mark the sample before the sample enters the sample box.

[0010] Optionally, the sampler includes a bracket and a mounting plate arranged on the bracket, the bracket is connected to a telescopic mechanism, and the telescopic mechanism can drive the bracket to be close to or away from the bottom of the anode; a drill and a stripper are movably arranged on the mounting plate.

[0011] Optionally, the drilling machine includes a rotating driving body and a drill bit, the drill bit is a hollow structure, and a compressed air inlet is provided on the drill bit.

[0012] Optionally, the stripper includes a telescopic driving body and a stripping head, and the stripping head is configured as a circular cone.

[0013] Optionally, the flipping mechanism includes an L-shaped horizontal bracket, two of which are arranged at a fixed distance apart; the two horizontal brackets are connected by a vertical bracket, and a clamping bracket that can move up and down is installed on the vertical bracket; there is a gap between the conveyors, and the bottom of the horizontal bracket is stuck in the gap, and the bottom height of the horizontal bracket is not higher than the top plane of the conveyor; the flipping mechanism is connected to the rotating mechanism, and the flipping mechanism as a whole is flipped 90° through the rotating mechanism.

[0014] Optionally, a liftable positioning blocker is provided on the conveyor, and the positioning blocker is arranged on one side of the gap; when the anode is transported to the turning mechanism, the positioning blocker is lifted to block the position.

[0015] Optionally, the sample collector includes an upper hopper and a scraper conveyor arranged on the bottom side of the upper hopper, and the scraper conveyor is connected to the sample box; the upper hopper is arranged in a cone shape, the inlet width of the scraper conveyor is 1.5-1.8 times the diameter of the sample, and the inlet length of the scraper conveyor is 1.2-1.5 times the length of the sample.

[0016] Optionally, a dust collector is provided above the flipping mechanism.

[0017] Optionally, the sampler, turning mechanism, conveyor, positioning blocker, inkjet printer, sample collector and dust collector are electrically connected to the electric control cabinet.

[0018] The present invention has the following advantages and beneficial effects:

[0019] In the present invention, the sampling anode can be automatically sent to the sampling station through a conveyor, that is, it can be sent to the flipping mechanism, and can also be sent away from the sampling station, thereby improving the efficiency of transportation; then the anode is flipped by the flipping mechanism, and the bottom surface of the anode is facing the sampler after flipping, and the sampler is used to complete automatic drilling and stripping, thereby improving efficiency and reducing manual labor intensity. When the sampling is completed and the flipping mechanism is reset, the anode is driven to reset, and the sampled sample automatically detaches from the anode and falls into the sample collector, thereby completing automatic sampling, stripping, and collection, thereby improving the sampling efficiency. In addition, multiple inkjet printers are used to perform inkjet marking on the sampling anode and the sampling sample in different processes, so that they can correspond one to one, avoiding the occurrence of confusion and inability to identify the sampling anode and the sampling sample, monitoring the sampled anode, and grasping the sampling information in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the automatic sampling system for aluminum anodes in the present invention;

[0021] Figure 2 It is a schematic diagram of the initial position of the automatic sampling system for aluminum anodes in the present invention;

[0022] Figure 3 This is a schematic diagram of the placement of the sampling anode in the automatic sampling system for aluminum anodes of the present invention;

[0023] Figure 4 Schematic diagram of the sampling anode flipping position of the automatic sampling system for aluminum anodes in the present invention;

[0024] Figure 5 Schematic diagram of the sampling opening of the automatic sampling system for aluminum anodes in the present invention;

[0025] Figure 6 It is a schematic diagram of sample stripping of the automatic sampling system for aluminum anodes in the present invention;

[0026] Figure 7 It is a schematic diagram of the sampling machine in the present invention;

[0027] Figure 8 It is a schematic diagram of the sampling and hole-opening machine in the present invention;

[0028] Fig. 9 is a schematic diagram of a sampling stripper in the present invention;

[0029] Fig.10 It is a structural schematic diagram of the turning mechanism in the present invention;

[0030] Fig.11 It is a schematic diagram of the structure of the sample collector and the sample box of the present invention;

[0031] Fig.12 This is a schematic diagram of an anode for aluminum;

[0032] Fig.13 It is a schematic diagram of synchronous anode sampling and conveying in the automatic sampling system for aluminum anodes of the present invention.

[0033] Figure markings: 1-sampler, 11-bracket, 12-mounting plate, 13-drilling machine, 131-rotating drive body, 132-drill bit, 133-compressed air inlet, 14-stripper, 141-telescopic drive body, 142-stripping head, 2-flipping mechanism, 21-vertical bracket, 22-horizontal bracket, 23-clamping bracket, 3-conveyor, 31-gap, 32-positioning blocker, 4-anode, 5-inkjet printer, 6-sample collector, 61-upper hopper, 62-scraper conveyor, 7-sample box, 8-electric control cabinet, 9-dust collector, 91-dust hood. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example 1

[0037] like Figures 1 to 12 As shown, an automatic sampling method for aluminum anodes includes a sampling device, which includes a sampler 1, a turning mechanism 2, a conveyor 3, an inkjet printer 5, a sample collector 6, a sample box 7 and other components. The turning mechanism 2 is arranged between two adjacent conveyors 3, and the sample collector 6 is arranged at the bottom of the turning mechanism 2. The conveyor 3 adopts a roller conveying structure, and the anode 4 is conveyed by a plurality of rollers. There is a gap between adjacent rollers, and the gap allows the sample to pass through. On the conveyor 3, a inkjet printer 5 is arranged in front of the feeding position of the turning mechanism 2, and a inkjet printer 5 is arranged at the outlet position of the sample collector 6.

[0038] The sampling steps are:

[0039] The anode 4 to be sampled is sent to the position of the flipping mechanism 2 by the conveyor 3. Before the anode 4 enters the flipping mechanism 2, an inkjet printer 5 is set to mark the anode 4 to be sampled; the flipping mechanism 2 flips the sampled anode 4 by 90 degrees, so that the bottom surface of the anode 4 faces the sampler 1, and the sampler 1 drills holes on the bottom surface of the sampling anode 4 for sampling and sample peeling; when the flipping mechanism 2 flips the anode 4 back, the sample automatically detaches from the anode 4 and falls off to the sample collector 6 through the gap between the rollers of the conveyor 3; the sample in the sample collector 6 is transported to the sample box 7, and the inkjet printer 5 is set to spray code and mark the sample before the sample enters the sample box 7.

[0040] In the present invention, the sampling anode 4 can be automatically sent to the sampling station through the conveyor 3, that is, it can be sent to the flipping mechanism 2, and can also be sent away from the sampling station, thereby improving the efficiency of transportation; then the flipping mechanism 2 is used to flip the anode 4, and after flipping, the bottom surface of the anode 4 faces the sampler 1, and the sampler 1 is used to complete automatic drilling and stripping, thereby improving efficiency and reducing manual labor intensity. When the sampling is completed and the flipping mechanism 2 is reset, the anode 4 is driven to reset, and the sampled sample automatically detaches from the anode 4 and falls into the sample collector 6, thereby completing automatic sampling, stripping, and collection, thereby improving the sampling efficiency. In addition, multiple inkjet printers 5 are used to inkjet mark the sampling anode 4 and the sampled sample in different processes, so that they can correspond one to one, avoiding the occurrence of confusion and inability to identify the sampling anode 4 and the sampled sample, and monitoring the sampled anode 4 to obtain the sampling information in real time.

[0041] like Figure 7 As shown, in the present invention, the sampler 1 includes a bracket 11 and a mounting plate 12 arranged on the bracket 11, and the bracket 11 is connected to a telescopic mechanism, such as a cylinder, etc. The telescopic mechanism can drive the bracket 11 close to the bottom of the anode 4 or away from the bottom of the anode 4; a drill 13 and a stripper 14 are movably arranged on the mounting plate 12. The drill 13 / stripper 14 can be driven close to the carbon block of the anode 4 by the telescopic mechanism to achieve drilling / stripping operations. The drill 13 and the stripper 14 are movably arranged on the mounting plate 12. Specifically, the movement limit can be achieved by providing a slide groove or the like. The movement of the drill 13 and the stripper 14 can be driven manually or by setting a cylinder or the like to ensure that the drill 13 and the stripper 14 are adjustable in the lateral direction to achieve drilling and stripping operations at multiple positions.

[0042] like Figure 8 As shown, the drilling machine 13 includes a rotating driving body 131 and a drill bit 132. The rotating driving body 131 can be realized by a motor or the like. The drill bit 132 is a hollow structure. A compressed air inlet 133 is provided on the drill bit 132. Compressed air is connected to the drill bit 132 through the compressed air inlet 133, which effectively helps to discharge slag.

[0043] like Fig. 9 As shown, the stripper 14 includes a telescopic driving body 141 and a stripping head 142. The telescopic driving body 141 can be realized by a mechanism such as a cylinder, and the stripping head 142 is set as a circular cone. After drilling the bottom surface of the anode 4, the drilling machine 13 is moved away, the stripper 14 is moved to the drilling position, and then the conical tip of the stripping head 142 is inserted into the gap of the sampling borehole to a certain depth, and the sample will automatically strip the anode 4.

[0044] like Fig.10 As shown, the flipping mechanism 2 includes an L-shaped horizontal bracket 22, and two horizontal brackets 22 are arranged at a fixed distance apart; the two horizontal brackets 22 are connected by a vertical bracket 21, and a clamping bracket 23 that can move up and down is installed on the vertical bracket 21, and the movement of the clamping bracket 23 can be driven by a motor or hydraulic. There is a gap 31 between the conveyors 3, and the bottom of the horizontal bracket 22 is stuck in the gap 31, and the bottom height of the horizontal bracket 22 is not higher than the top plane of the conveyor 3; the flipping mechanism 2 is connected to the rotating mechanism, and the flipping mechanism 2 is flipped 90° as a whole through the rotating mechanism. In the present invention, only the main frame structure of the flipping mechanism 2 is illustrated. For the specific flipping operation, a driving mechanism, such as a motor, needs to be arranged on the outside of the conveyor 3, so that the flipping mechanism 2 can be flipped 90 degrees around an axis.

[0045] like Figure 2 As shown, at this time, the turning mechanism 2 is not turned over, the bottom of the horizontal support 22 is stuck in the gap 31, and the anode 4 on the conveyor 3 can be transported to the horizontal support 22; Figure 3 As shown, at this time, the anode 4 on the conveyor 3 is sent to the horizontal support 22 for clamping; Figure 4 As shown, at this time, the turning mechanism 2 turns 90 degrees around the outer edge of the conveyor 3, and turns the anode 4 90 degrees so that its bottom surface is facing the sampler 1.

[0046] Furthermore, a positioning blocker 32 that can be raised and lowered is provided on the conveyor 3, and the positioning blocker 32 is provided on one side of the gap 31, and the positioning blocker 32 is provided on the feeding side of the turning mechanism 2; when the anode 4 is transported to the turning mechanism 2, the positioning blocker 32 is raised to block the position. The raising and lowering of the positioning blocker 32 can be driven by a cylinder or the like.

[0047] Furthermore, the sample collector 6 includes an upper hopper 61 and a scraper conveyor 62 arranged on the bottom side of the upper hopper 61, and the scraper conveyor 62 is connected to the sample box 7; the upper hopper 61 is arranged in a cone shape, the entrance width of the scraper conveyor 62 is 1.5-1.8 times the diameter of the sample, and the entrance length of the scraper conveyor 62 is 1.2-1.5 times the length of the sample, ensuring that each entrance transports at most one sample at a time.

[0048] Before the sampling anode 4 enters the sampling station, a printer 5 is set to mark the anode 4 to be sampled; before the collected sample enters the sample box 7, a printer 5 is set to mark the sample with a printer.

[0049] In the present invention, a dust collector 9 is arranged above the flip mechanism 2, and the dust collector 9 includes a dust collecting pipe and a dust collecting hood 91. The dust collecting hood 91 is arranged above the sampling station, and the dust collecting hood 91 is arranged above the sampling drilling position, and the dust collector 9 performs dust collection operation on the sampling station.

[0050] In the present invention, the sampler 1, the turning mechanism 2, the conveyor 3, the positioning blocker 32, the inkjet printer 5, the sample collector 6, and the dust collector 9 are electrically connected to the electric control cabinet 8. The electric control cabinet 8 uses a control unit such as a PLC or a single chip microcomputer to perform logic programming to control the automatic operation of the entire sampling device.

[0051] Example 2

[0052] When the anodes 4 are transported, the conveyor 3 will continuously transport a number of anodes 4, and in a batch of anodes, only some anodes will be sampled. Therefore, when the sampling device in Example 1 is sampling, due to the existence of the gap 31, especially when the width of the gap 31 is too large, when the flipping mechanism 2 flips one of the anodes for sampling, the other anodes 4 that are normally transported and do not need to be sampled are difficult to transport normally, and the conveyor 3 will stop. The conveyor 3 can only be started to continue transporting after the sampling is completed, which will lead to low efficiency and long cycle of sampling and detection of the entire conveyor line, which seriously affects the progress of the next process.

[0053] like Fig.13 As shown, in this embodiment, the bracket 11 of the sampler 1 can be movably arranged in the gap 31, and the mounting plate 12 can be slidably arranged on the bracket 11, and the movement of the mounting plate 12 can be achieved by a mechanism such as a cylinder. Therefore, when the flipping mechanism is flipped, the bracket 11 of the sampler 1 can fill the gap 31, so as not to affect the transportation of the anode. Although such a situation cannot take into account the simultaneous sampling of anodes and the transportation of non-sampling anodes, and the two functions need to be staggered, in this case, the efficiency of anode transportation can also be greatly improved. Because, in the structure of Example 1, in order to transport the anode, the flipping mechanism 2 must be reset after the sampling is completed, while in this embodiment, it is only necessary to sample the sampling anode during the gap between the two non-sampling anode transportations, thereby improving the sampling efficiency and the anode transportation efficiency.

[0054] Reference Fig.13At this time, the flip mechanism 2 flips 90 degrees, and the anode 4 extracted therefrom is flipped for sampling operation, while the anodes on the conveyor 3 and on both sides of the flip mechanism 2 are the anodes 4 that are not selected and do not need to be sampled, so they can be transported normally. In this way, in the gap of the anodes that are not selected and do not need to be sampled during normal transportation, the anodes that need to be sampled on the flip mechanism 2 are opened for sampling, which can further take into account the sampling efficiency and transportation efficiency.

[0055] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic sampling method for aluminum anodes, characterized in that: The sampling device comprises a sampling machine (1), a turning mechanism (2), a conveyor (3), an inkjet printer (5), a sample collector (6) and a sample box (7); the turning mechanism (2) is arranged between two adjacent conveyors (3); and the sample collector (6) is arranged at the bottom of the turning mechanism (2); The sampling steps are: The anode to be sampled is sent to the position of the turning mechanism (2) through a conveyor (3), and a printer (5) is provided before the anode enters the turning mechanism (2) to mark the anode to be sampled; The flipping mechanism (2) flips the sampling anode 90 degrees, and the sampling machine (1) performs drilling sampling and sample stripping on the bottom surface of the sampling anode; When the flipping mechanism (2) flips the anode back, the sample automatically falls off into the sample collector (6); the sample in the sample collector (6) is transported to the sample box (7), and before the sample enters the sample box (7), an inkjet printer (5) is set to perform inkjet marking on the sample.

2. The automatic sampling method for aluminum anodes according to claim 1, characterized in that: The sampler (1) comprises a bracket (11) and a mounting plate (12) arranged on the bracket (11); the bracket (11) is connected to a telescopic mechanism, and the telescopic mechanism can drive the bracket (11) to approach the bottom of the anode or to move away from the bottom of the anode; a drill (13) and a stripper (14) are movably arranged on the mounting plate (12).

3. The automatic sampling method for aluminum anodes according to claim 2, characterized in that: The drilling machine (13) comprises a rotation driving body (131) and a drill bit (132); the drill bit (132) is a hollow structure, and a compressed air inlet (133) is provided on the drill bit (132).

4. The automatic sampling method for aluminum anodes according to claim 2, characterized in that: The stripper (14) comprises a telescopic driving body (141) and a stripping head (142), and the stripping head (142) is configured as a circular cone.

5. The automatic sampling method for aluminum anodes according to claim 1, characterized in that: The flipping mechanism (2) comprises an L-shaped horizontal bracket (22), two of which are arranged at a fixed distance from each other; the two horizontal brackets (22) are connected by a vertical bracket (21), and a clamping bracket (23) that can move up and down is installed on the vertical bracket (21); there is a gap (31) between the conveyors (3), the bottom of the horizontal bracket (22) is clamped in the gap (31), and the bottom height of the horizontal bracket (22) is not higher than the conveyor top plane of the conveyor (3); the flipping mechanism (2) is connected to a rotating mechanism, and the flipping mechanism (2) is flipped 90 degrees as a whole through the rotating mechanism.

6. The automatic sampling method for aluminum anodes according to claim 1, characterized in that: The conveyor (3) is provided with a positioning blocker (4) which can be raised and lowered. The positioning blocker (4) is arranged on one side of the gap (31); when the anode is transported to the turning mechanism (2), the positioning blocker (4) is raised to block the position.

7. The automatic sampling method for aluminum anodes according to claim 1, characterized in that: The sample collector (6) comprises an upper hopper (61) and a scraper conveyor (62) arranged at the bottom side of the upper hopper (61), and the scraper conveyor (62) is connected to the sample box (7); the upper hopper (61) is arranged in a cone shape, the inlet width dimension of the scraper conveyor (62) is 1.5-1.8 times the sample diameter, and the inlet length dimension of the scraper conveyor (62) is 1.2-1.5 times the sample length.

8. The automatic sampling method for aluminum anodes according to claim 1, characterized in that: A dust collector (9) is arranged above the turning mechanism (2).

9. The automatic sampling method for aluminum anodes according to claim 1, characterized in that: The sampler (1), the turning mechanism (2), the conveyor (3), the positioning blocker (4), the inkjet printer (5), the sample collector (6) and the dust collector (9) are electrically connected to the electric control cabinet (8).

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