Petroleum coke ash content testing equipment for prebaked anode

Abstract

The invention provides petroleum coke ash content testing equipment for a prebaked anode, and relates to the technical field of solid mineral detection. The equipment further comprises a porcelain boat, a feeding device, a primary weighing device, a firing device, a secondary weighing device and a discharging device. The primary weighing device and the secondary weighing device comprise a bottom frame, a conveying subassembly and a weighing sensor. The firing device comprises a main frame body and a heating subassembly. The heating subassembly comprises a furnace body with two open ends, a heating piece and a third conveying component are arranged in a heating cavity of the furnace body, and plugging subassemblies are arranged at the two ends of the furnace body. The plugging subassembly comprises a sliding door frame arranged on the main frame body in a sliding mode, and a mounting frame and a first driving piece are arranged in the sliding door frame in a sliding mode. And a sealing plate and a carrier roller are arranged in the mounting frame. And a first spring is arranged between the sliding door frame and the main frame body. And a second driving piece is arranged between the plugging subassembly and the main frame body. The equipment can effectively improve the test efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of solid mineral detection, in particular to a petroleum coke ash content testing device for prebaked anodes. Background Art

[0002] The production process for prebaked anodes uses petroleum coke, a byproduct of the petrochemical industry, as the aggregate and coal tar, a byproduct of the coal chemical industry, as the binder. The mixture is then mixed and formed into a green body of a specific shape. Heat treatment then carbonizes the binder, resulting in an anode product with high mechanical strength, high oxidation resistance, and low resistivity.

[0003] Petroleum coke ash refers to an impurity within petroleum coke. Specifically, it is the residue remaining after the volatile matter and char within the petroleum coke continuously react with oxygen during the exothermic combustion reaction. Petroleum coke ash is harmful to prebaked anodes and aluminum. High ash content can severely impact prebaked anode quality properties such as strength and conductivity. During the electrolysis process, high ash content in petroleum coke increases energy consumption and significantly impacts aluminum purity. Therefore, to ensure the quality of prebaked anodes, the ash content of petroleum coke is measured upon arrival to confirm compliance with applicable standards.

[0004] Currently, a common method involves burning petroleum coke in high-temperature equipment such as a muffle furnace. The difference in quality before and after combustion is then used to calculate the ash content in the petroleum coke, thereby determining whether the petroleum coke meets quality standards. However, this testing process requires manual, step-by-step operation, resulting in low testing efficiency. Furthermore, due to this low testing efficiency, it is impossible to conduct timely testing of petroleum coke upon arrival, forcing the petroleum coke to be temporarily stored. During this storage and transfer process, the petroleum coke is easily contaminated by dust and other contaminants, which can affect the test results. Summary of the Invention

[0005] In response to the above problems, the present application provides a petroleum coke ash testing device for prebaked anodes, which can effectively improve the testing efficiency.

[0006] The technical solution adopted by the present invention to solve the technical problem is: A petroleum coke ash content testing device for prebaked anodes, comprising a porcelain boat for holding materials, and a loading device, a primary weighing device, a burning device, a secondary weighing device, and a unloading device arranged in sequence along the direction of travel of the materials; The primary weighing device and the secondary weighing device have the same structure, both comprising a base frame and a conveying device located above the base frame, and a weighing sensor is provided between the base frame and the conveying device; The burning device comprises a main frame and a heating part arranged on the main frame; The heating unit comprises a furnace body with openings at both ends, a heating element and a third conveying component are arranged in the heating cavity of the furnace body, and a blocking unit is respectively arranged at the openings at both ends of the furnace body on the main frame; The blocking device includes a sliding door frame slidably arranged on the main frame, and the sliding direction of the sliding door frame is the same as the traveling direction of the material; A mounting frame is slidably provided in the sliding door frame, and a first driving member is provided between the mounting frame and the sliding door frame for driving the mounting frame to slide up and down relative to the sliding door frame; The installation frame is provided with a sealing plate and a roller in sequence from top to bottom, and both ends of the roller are rotatably connected to the installation frame respectively; When the mounting frame is at the upper limit position, the porcelain boat can pass through the space between the sealing plate and the rollers and enter the third conveying component in the furnace body under the support of the rollers; When the mounting frame is at the lower limit position, the sealing plate is aligned with the furnace body; A first spring is provided between the sliding door frame and the main frame for preventing the sliding door frame from approaching the furnace body; A second driving member is provided on both sides of the furnace body between the sealing part and the main frame, and a connecting column is provided on the mounting frame. The cylinder body of the second driving member is hinged to the main frame, and the rod end of the piston rod of the second driving member is hinged to the connecting column.

[0007] Furthermore, the sliding door frame is provided with a connecting block, and the connecting block is provided with a connecting groove. When the mounting frame is at the lower limit position, the connecting column is located in the connecting groove.

[0008] Furthermore, the sliding door frame includes a horizontal beam, vertical beams are respectively provided at both ends of the horizontal beam, a guide column is provided on the main frame, and a guide seat matching the guide column is provided at the lower end of the vertical beam, and the first spring is sleeved on the guide column and is located on the side of the guide seat close to the furnace body.

[0009] Furthermore, the mounting frame includes an upper frame, side frames are respectively provided at both ends of the upper frame, the sealing plate is located between the two side frames, and the upper end of the sealing plate is inserted into the upper frame, the two side ends of the sealing plate are respectively inserted into the side frames, a lower frame is provided between the two side frames and below the sealing plate, the lower end of the sealing plate is inserted into the lower frame, and the two ends of the lower frame are respectively fixedly connected to the side frames in a detachable manner, a second side beam is provided at the lower end of the side frame, and the two ends of the roller are respectively rotatably connected to the second side beam.

[0010] Furthermore, the third conveying component includes two support frames, a driving shaft and a driven shaft are arranged between the two support frames, at least two conveying chains are arranged between the driving shaft and the driven shaft, the driving shaft is provided with a driving sprocket that cooperates with the conveying chain, and the driven shaft is provided with a driven sprocket that cooperates with the conveying chain, one end of the driving shaft extends through the furnace body to the outside of the furnace body and is connected to the power output shaft of the third drive motor.

[0011] Furthermore, a pallet is provided on the lower side of the conveying portion of the conveying chain, and support plates are provided on both sides of the pallet, and the lower ends of the support plates are fixedly connected to the bottom surface of the heating chamber in a detachable manner.

[0012] Furthermore, the driving shaft includes a first shaft segment, a second shaft segment and a third shaft segment in sequence, the first shaft segment is located in the heating chamber of the furnace body, a plug-in block is provided at one end of the second shaft segment facing the first shaft segment, a plug-in hole matching the plug-in block is provided on the first shaft segment, a first flange plate is provided at one end of the second shaft segment facing the third shaft segment, a second flange plate is provided at one end of the third shaft segment facing the second shaft segment, an insulating pad is provided between the first flange plate and the second flange plate, and the first flange plate and the second flange plate are connected and fixed by a bolt assembly.

[0013] Furthermore, the furnace body includes a base and an upper cover, the base is provided with a first groove that passes through the base along the direction of material travel, and the upper cover is provided with a second groove that passes through the base along the direction of material travel. When the upper cover and the base are buckled together, the first groove and the second groove jointly form the heating chamber, and the heating element is arranged in the second groove of the upper cover. Limiting blocks are respectively provided on both sides of the second groove of the upper cover, and limiting grooves that cooperate with the limiting blocks are respectively provided on both sides of the first groove of the base.

[0014] Furthermore, the loading device and the unloading device have the same structure, both including a first conveying frame and a first conveying component arranged on the first conveying frame, the conveying component includes a second conveying frame and a second conveying component arranged on the second conveying frame, the lower end of the weighing sensor is connected to the base frame, and the upper end of the weighing sensor is connected to the second conveying frame.

[0015] Furthermore, a detection switch is provided on the discharge end of the second conveying frame, a barcode scanner is provided on the second conveying frame, and a barcode is provided on the porcelain boat. When the detection switch detects the porcelain boat, the barcode scanner is aligned with the barcode on the porcelain boat.

[0016] The beneficial effects of the present invention are: 1. The embodiment of the present application provides a petroleum coke ash testing device for prebaked anodes, which realizes the automated operations of loading, primary weighing, combustion, secondary weighing and unloading. Compared with the traditional testing method, the detection cycle is shortened to one hour, which is only one-sixth of the original time, greatly improving the detection efficiency.

[0017] 2. Since the detection efficiency has been significantly improved, materials can be tested in a timely manner when they enter the site, which not only saves waiting time, but also eliminates the need to transfer and temporarily store materials, effectively reducing the risk of material contamination and ensuring the accuracy of the test results.

[0018] 3. In traditional testing methods, one furnace will complete the combustion of multiple materials. When weighing the materials after combustion, due to the large amount of materials, they need to queue up for weighing. During the waiting process, the materials will absorb moisture in the air, causing the weight to change. Therefore, in order to ensure the accuracy of the test results in traditional methods, it is often necessary to dry the materials between the second weighing, which not only reduces the test efficiency, but also increases the cost and energy consumption. The present application provides a petroleum coke ash testing equipment for prebaked anodes. Since the material will be automatically weighed after leaving the burning device, there is no waiting time in between, so no drying equipment is required for drying, which not only improves the test efficiency but also reduces the cost and energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a petroleum coke ash content testing device for prebaked anodes provided in an embodiment of the present application; Figure 2 A top view of a petroleum coke ash content testing device for prebaked anodes provided in an embodiment of the present application; Figure 3 for Figure 2 AA section view in; Figure 4 It is a schematic diagram of the three-dimensional structure of the feeding device; Figure 5 This is the rear view of the loading device; Figure 6 for Figure 4 Schematic diagram of the enlarged structure of part A; Figure 7 for Figure 5 Schematic diagram of the enlarged structure of part B; Figure 8 It is a schematic diagram of the three-dimensional structure of a weighing device; Figure 9 for Figure 8 Schematic diagram of the enlarged structure of part C; Figure 10 It is a schematic diagram of the three-dimensional structure of the burning device; Figure 11 for Figure 10 Schematic diagram of the enlarged structure of part D; Figure 12 for Figure 10 Schematic diagram of the enlarged structure of part E; Figure 13 It is a structural diagram of the plugging part; Figure 14 Schematic diagram of the installation structure of the sealing plate; Figure 15 This is a schematic diagram of the three-dimensional structure of the burning device after removing the blocking part and the second driving part; Figure 16 Schematic diagram of the three-dimensional structure of the upper cover; Figure 17 is a schematic diagram of the three-dimensional structure of the third conveying component; Figure 18 for Figure 17 Schematic diagram of the enlarged structure of part F; Figure 19 A top view of the internal structure of the heating unit; Figure 20 for Figure 19 BB cross-sectional view in; Figure 21 It is a schematic diagram of the three-dimensional structure when the plugging part is in a closed state; Figure 22 for Figure 21 Schematic diagram of the enlarged structure of part G.

[0020] In the picture: 1, porcelain boat; 11, barcode; 2. Loading device; 211. First vertical frame; 221. First conveyor roller; 222. First transmission mechanism; 223. First drive motor; 23. Guide frame; 231. Guide plate; 2311. Third transverse plate; 2312. Third rib plate; 232. First bracket; 2321. First transverse plate; 2322. Vertical plate; 2323. First rib plate; 2324. Second transverse plate; 3. Primary weighing device; 311. First horizontal frame; 312. Support legs; 313. Mounting frame; 321. First side beam; 3221. Second conveyor roller; 3222. Second transmission mechanism; 3223. Second drive motor; 33. Weighing sensor; 34. Detection switch; 341. Second bracket; 35. Barcode scanner; 351. Third bracket; 4. Burning device; 411. Second vertical frame; 4111. Guide column; 412. Second horizontal frame; 42. Furnace body; 421. Base; 4211. Limiting groove; 422. Upper cover; 4221. Heating element; 4222. Limiting block; 43. Third conveying component; 431. Support frame; 4311. End frame; 4312. Pull rod; 432. Driving shaft; 4321. First shaft section; 43211. Plug hole; 4322. Second shaft section; 43221. Plug block; 43222. First flange plate; 4323. Third shaft section; 43231. Second flange plate; 4324. Insulation pad; 433. Driven shaft; 434. Conveyor chain ; 435, driving sprocket; 436, driven sprocket; 437, third transmission mechanism; 438, third drive motor; 441, support plate; 442, support plate; 443, flat plate; 45, blocking assembly; 4511, crossbeam; 4512, vertical beam; 4513, guide seat; 4514, connecting block; 4521, upper frame; 4522, side frame; 4523, lower frame; 4524, second side beam; 4525, connecting plate; 4526, connecting column; 453, sealing plate; 454, roller; 455, rodless cylinder; 461, first spring; 462, second spring; 47, second driving member; 471, connector; 48, tightening plate; 5. Secondary weighing device; 6. Unloading device. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be described in detail below in conjunction with the drawings in the embodiments of this application. The described embodiments are only part of the embodiments of this application, not all of the embodiments. All other embodiments obtained by those skilled in the art without creative work based on the embodiments of this application should fall within the scope of protection of this application.

[0022] In order to facilitate the understanding of the specific implementation of this application, the coordinate system is defined as follows: Figure 1 As shown, the left-right direction is the horizontal direction, the front-back direction is the longitudinal direction, and the up-down direction is the vertical direction.

[0023] like Figure 1 、 Figure 2 and Figure 3As shown, a petroleum coke ash content testing device for prebaked anodes includes a porcelain boat 1 for holding materials, and a loading device 2, a primary weighing device 3, a burning device, a secondary weighing device 5 and a unloading device 6 arranged in sequence along the traveling direction of the materials.

[0024] like Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, the loading device 2 includes a first conveying frame and a first conveying component arranged on the first conveying frame, and the conveying direction of the first conveying component is the same as the traveling direction of the material.

[0025] The first conveying frame body includes two first upright frames 211 with the same structure and symmetrical arrangement. The first conveying component includes a plurality of first conveying rollers 221 arranged between the two first upright frames 211, and the plurality of first conveying rollers 221 are arranged along the direction of travel of the material (according to the direction of travel of the material). Figure 1 The coordinate system shown is in the left-right direction. The first conveyor rollers 221 are rotatably connected to the first stand 211 at both ends via bearing assemblies. Two adjacent first conveyor rollers 221 are connected via a first transmission mechanism 222, and one first conveyor roller 221 is connected to the power output of a first drive motor 223.

[0026] The first transmission mechanism 222 may be a chain transmission or a synchronous belt transmission.

[0027] As a specific embodiment, the first transmission mechanism 222 described in this embodiment adopts a chain drive and is located on the rear side of the first conveying frame. The first drive motor 223 is located on the front side of the first conveying frame and is fixedly connected to the first conveying frame in a detachable manner. The first drive motor 223 adopts a hollow shaft motor, and the roller shaft of the first conveying roller 221 connected to the first drive motor 223 is inserted into the hollow shaft of the first drive motor 223.

[0028] Furthermore, guide frames 23 are provided on both sides of the first conveying frame along the conveying direction, and the guide frames 23 are fixedly connected to the first conveying frame in a detachable manner. The provision of the guide frames 23 enables the porcelain boat 1 to be conveyed centered on the loading device 2, preventing deviation during conveyance.

[0029] As a specific embodiment, the guide frame 23 described in this embodiment includes a guide plate 231 and a first bracket 232, and the two guide plates 231 are respectively fixedly connected to the upper ends of the two first upright frames 211 via the first bracket 232. The first bracket 232 includes a first transverse plate 2321, which is fixedly connected to the upper side of the first upright frames 211 by welding. The inner end of the first transverse plate 2321 (with the side opposite the two first upright frames 211 as the inner side) is fixedly provided with a vertical plate 2322 extending upward perpendicular to the first transverse plate 2321 by welding. A first rib 2323 is provided between the vertical plate 2322 and the first transverse plate 2321. A second transverse plate 2324 extending inwardly (with the side facing the two first uprights 211 as the inner side) perpendicular to the vertical plate 2322 is welded to the upper end of the vertical plate 2322. A second rib (not shown) is disposed between the second transverse plate 2324 and the vertical plate 2322. A third transverse plate 2311 is welded to the outer side of the guide plate 231 (with the side facing the two guide frames 23 as the inner side). A third rib 2312 is disposed between the upper side of the third transverse plate 2311 and the guide plate 231. The third transverse plate 2311 is fixedly connected to the second transverse plate 2324 via a bolt assembly (not shown).

[0030] Furthermore, the feed end of the guide plate 231 is provided with a guide portion inclined outward (with the side opposite to the two guide plates 231 as the inner side), and the guide portions of the two guide plates 231 together form a trumpet-shaped structure with the large end opening facing the feed end.

[0031] like Figure 8 and Figure 9 As shown, the primary weighing device 3 comprises a base frame and a conveyor assembly located above the base frame, with a load cell 33 positioned between the base frame and the conveyor assembly. When the porcelain boat 1 lands on the primary weighing device 3, the load cell 33 detects the weight increase M1. Since the weight of the porcelain boat 1 is a fixed value C, the weight C of the porcelain boat 1 is subtracted from the weight increase M1 detected by the load cell 33 to obtain the weight M1' of the material entering the calcination device.

[0032] The base frame includes a first cross frame 311 and legs 312 disposed below the first cross frame 311. As a specific embodiment, the first cross frame 311 in this embodiment has a square structure, and four legs 312 are disposed below the first cross frame 311, and the four legs 312 are respectively located at the four corners of the first cross frame 311.

[0033] The conveying device includes a second conveying frame and a second conveying component arranged on the second conveying frame, and the conveying direction of the second conveying component is the same as the traveling direction of the material.

[0034] The second conveying frame includes two first side beams 321. The second conveying component includes a plurality of second conveying rollers 3221 arranged between the two first side beams 321, and the plurality of second conveying rollers 3221 are arranged along the direction of travel of the material (according to Figure 1 The coordinate system shown is in the left-right direction. The second conveyor rollers 3221 are rotatably connected to the first side beam 321 at both ends via bearing assemblies. Two adjacent second conveyor rollers 3221 are connected via a second transmission mechanism 3222. One second conveyor roller 3221 is connected to the power output of a second drive motor 3223.

[0035] The second transmission mechanism 3222 can adopt chain transmission or synchronous belt transmission.

[0036] As a specific embodiment, the second transmission mechanism 3222 described in this embodiment uses a chain drive and is located on the rear side of the second conveying frame. The second drive motor 3223 is located on the front side of the second conveying frame and is fixedly connected to the second conveying frame in a detachable manner. The second drive motor 3223 uses a hollow shaft motor, and the roller shaft of the second conveying roller 3221 connected to the second drive motor 3223 is inserted into the hollow shaft of the second drive motor 3223.

[0037] As a specific implementation, four weighing sensors 33 are provided between the conveying part and the base frame in this embodiment, and the four weighing sensors 33 are respectively located at the four corners of the base frame and the second conveying frame.

[0038] As a specific embodiment, the front and rear ends of the left and right sides of the chassis in this embodiment are respectively provided with mounting brackets 313. The mounting brackets 313 include a mounting plate, and the end of the mounting plate facing the chassis is fixedly connected to the first cross frame 311 of the chassis by welding, and a fourth rib is provided between the mounting plate and the first cross frame 311. A weighing sensor 33 is provided above each mounting bracket 313, and the lower end of the weighing sensor 33 is fixedly connected to the mounting plate of the mounting bracket 313 in a detachable manner. The upper ends of the two weighing sensors 33 located on the front side are respectively fixedly connected to the left and right ends of the first front side beam 321 in a detachable manner. The upper ends of the two weighing sensors 33 located on the rear side are respectively fixedly connected to the left and right ends of the first rear side beam 321 in a detachable manner.

[0039] Furthermore, a detection switch 34 is provided on the second conveyor frame at the discharge end of the primary weighing device 3, and the detection switch 34 is fixedly mounted on the upper side of the first side beam 321 of the second conveyor frame at the front side via a second bracket 341. Exemplarily, the detection switch 34 is a photoelectric switch.

[0040] Furthermore, a barcode scanner 35 is provided on the second conveying frame, and the barcode scanner 35 is fixedly provided on the upper side surface of the first side beam 321 of the second conveying frame on the front side through a third bracket 351. A barcode 11 is provided on the porcelain boat 1, and the barcode 11 contains the attribute information of the porcelain boat 1. When the detection switch 34 detects the porcelain boat 1, the barcode scanner 35 on the second conveying frame is aligned with the barcode 11 on the porcelain boat 1, and the barcode scanner 35 can read the attribute information of the porcelain boat 1 by scanning the barcode 11. At the same time, the weighing sensor 33 uploads the detected material weight information to the control device (not shown in the figure), and associates the attribute information of the porcelain boat 1 read by the barcode scanner with the material weight information uploaded by the weighing sensor 33. In this way, it can ensure a one-to-one correspondence between the material weight and the porcelain boat 1, avoiding confusion.

[0041] like Figure 10 and Figure 15 As shown, the burning device includes a main frame, on which a heating component is provided. The heating component includes a furnace body 42 made of refractory heat-insulating material. The furnace body 42 is provided with a heating chamber that passes through the furnace body 42 along the direction of material travel. The heating chamber is provided with a heating element 4221 and a third conveying component 43 for conveying the porcelain boat 1. The conveying direction of the third conveying component 43 is the same as the direction of material travel, and the driving part of the third conveying component 43 is located outside the furnace body 42. The main frame is provided with sealing components 45 at the two end openings of the furnace body 42.

[0042] like Figure 13As shown, the blocking assembly 45 includes a sliding gantry. The sliding gantry comprises a horizontal beam 4511, with vertical beams 4512 extending downwardly perpendicular to the horizontal beam 4511 at each end. Together, the horizontal beam 4511 and vertical beams 4512 form a downwardly opening gantry structure. The vertical beams 4512 are slidably connected to the main frame via sliding assemblies, and the sliding gantry slides relative to the main frame in the same direction as the material's movement. A mounting frame is disposed within the sliding gantry, slidably connected to the gantry and capable of moving up and down relative to the gantry. A first drive member is disposed between the mounting frame and the gantry to drive the mounting frame's upward and downward movement relative to the gantry. The mounting frame comprises, from top to bottom, a sealing plate 453 and rollers 454. The sealing plate 453 is made of a fire-resistant and heat-insulating material, and the rollers 454 are rotatably connected to the mounting frame via bearing assemblies at each end.

[0043] As a specific implementation manner, the furnace body 42 and the sealing plate 453 described in this embodiment are both made of refractory bricks.

[0044] like Figure 10 As shown, when the mounting frame is at the upper limit position relative to the sliding door frame, the roller 454 is located between the second conveying member 43 and the third conveying member 43, and the height of the roller 454 is the same as that of the second conveying member 43. At this time, supported by the roller 454, the porcelain boat 1 can smoothly pass through the space between the sealing plate 453 and the roller 454 and enter the third conveying member 43 in the furnace body 42, and continue to be conveyed to the right by the third conveying member 43.

[0045] like Figure 21 As shown, when the mounting frame is at the lower limit position relative to the sliding door frame, the sealing plate 453 is aligned with the furnace body 42.

[0046] As a specific embodiment, the first driving member described in this embodiment utilizes a rodless cylinder 455 with a built-in guide. Both sides of the mounting frame are connected to the vertical beams 4512 of the sliding door frame via the rodless cylinders 455. The fixed baffles at each end of the cylinder barrel of the rodless cylinder 455 are fixedly connected to the inner side of the vertical beam 4512 (with the side opposite the two vertical beams 4512 as the inner side) via screws. The slider of the rodless cylinder 455 is also fixedly connected to the mounting frame via screws.

[0047] As a specific implementation method, Figure 13 and Figure 14As shown, the mounting frame described in this embodiment includes an upper frame 4521, and the two ends of the upper frame 4521 are respectively provided with side frames 4522 extending downward perpendicular to the upper frame 4521, and the upper frame 4521 and the side frames 4522 together form a U-shaped structure with an opening facing downward. The upper frame 4521 and the side frames 4522 both include a first web and a first wing plate located at both ends of the first web, and the first web and the first wing plate together form a U-shaped structure with an opening facing inward. The sealing plate 453 is located in the U-shaped structure formed by the upper frame 4521 and the side frames 4522, and the upper end of the sealing plate 453 is inserted into the U-shaped structure of the upper frame 4521, and the two side ends of the sealing plate 453 are respectively inserted into the U-shaped structure of the side frames 4522. A lower frame 4523 is provided between the two side frames 4522 and below the sealing plate 453. The lower frame 4523 includes a horizontal plate, and the two ends of the horizontal plate along the length direction (according to Figure 1 The coordinate system shown is the front and rear ends) are respectively provided with downwardly bent connecting plates 4525, and the connecting plates 4525 are fixedly connected to the first web of the side frame 4522 by bolt assemblies (not shown in the figure). Figure 1 The coordinate system shown is the left and right ends) are respectively provided with upwardly bent vertical plates, and the lower end of the closing plate 453 is inserted between the two vertical plates. The lower end of each side frame 4522 is provided with a detachable second side beam 4524, and the roller 454 is located between the two second side beams 4524, and the two ends of the roller 454 are rotatably connected to the second side beam 4524 through a bearing assembly. Exemplarily, the lower end of the side frame 4522 is fixedly provided with a connecting plate 4525 by welding, and the connecting plate 4525 is fixedly connected to the second side beam 4524 by a bolt assembly (not shown in the figure).

[0048] As a specific implementation method, Figure 10 and Figure 11 As shown, the sliding assembly described in this embodiment includes a guide column 4111 arranged on the main frame, and the lower end of the vertical beam 4512 is fixedly provided with a guide seat 4513 that cooperates with the guide column 4111 by welding.

[0049] like Figure 11 As shown, a first spring 461 is sleeved on the guide column 4111 on a side of the guide seat 4513 close to the furnace body 42 .

[0050] like Figure 10 、 Figure 11 、 Figure 13 and Figure 14As shown, a second driving member 47 is provided on each side of the furnace body 42 between the sealing member 45 and the main frame. The second driving member 47 may be an oil cylinder or a pneumatic cylinder. Connecting posts 4526 extending outward perpendicularly from the side frames 4522 are provided on each of the two side frames 4522 of the mounting frame. The cylinder of the second driving member 47 is hingedly connected to the main frame. The end of the piston rod of the second driving member 47 is provided with a connector 471. One end of the connector 471 is fixedly connected to the end of the piston rod, and the other end of the connector 471 is sleeved on the connecting post 4526 and can rotate relative to the connecting post 4526 about its axis. When the mounting frame moves up and down relative to the sliding door frame driven by the first driving member, the second driving member 47 is in a depressurized state, meaning that the second driving member 47 can passively extend and retract under the drive of the mounting frame.

[0051] Further, if Figure 13 、 Figure 14 、 Figure 21 and Figure 22 As shown, a connecting block 4514 is fixedly mounted on the vertical beam 4512 of the sliding door frame by welding. The connecting block 4514 is provided with a connecting groove with an open upper end. When the mounting frame is at the lower limit position relative to the sliding door frame, the connecting column 4526 is located in the connecting groove.

[0052] The purpose of this design is that when the second driving member 47 pulls the sealing portion 45 inward (with the side opposite to the two sealing portions 45 as the inner side) to seal the open end of the furnace body 42, the sliding door frame and the mounting frame can be formed into a whole through the connecting column 4526, thereby pulling the whole, that is, tightening the sliding door frame and the mounting frame at the same time. This not only ensures that the sealing plate 453 is reliably pressed against the end face of the furnace body 42, but also avoids stress on the connection between the sliding door frame and the mounting door frame during the tightening process, thereby playing a protective role.

[0053] Further, if Figure 11 As shown, a second spring 462 is sleeved on the guide post 4111 on the side of the guide seat 4513 away from the furnace body 42. In this way, the distance between the blocking portion 45 and the furnace body 42 in the free state can be adjusted by adjusting the elastic coefficients of the first spring 461 and the second spring 462.

[0054] As a specific implementation method, Figure 10 、 Figure 11 、 Figure 12 and Figure 15As shown, the main frame described in this embodiment includes two second vertical frames 411. A second horizontal frame 412 for supporting the furnace body 42 is provided between the two second vertical frames 411 and located in the middle of the second vertical frames 411. Several tightening plates 48 are provided along the length of the furnace body 42 between the furnace body 42 and the second horizontal frame 412. One end of the tightening plate 48 is fixedly connected to the second horizontal frame 412 by screws, and the other end of the stirrup is fixedly connected to the second horizontal frame 412 by screws after passing through the furnace body 42 from the upper side. The guide column 4111 is provided on the upper side of the second vertical frame 411. The cylinder of the second driving member 47 is hinged to the second vertical frame 411.

[0055] like Figure 17 、 Figure 18 and Figure 19 As shown, the third conveying component 43 includes two identically structured and symmetrically arranged support frames 431, each of which is detachably fixed to the furnace body 42. A driving shaft 432 is disposed between the two support frames 431 at one end thereof, with both ends of the driving shaft 432 being rotatably connected to the support frames 431 via bearing assemblies. A driven shaft 433 is disposed between the two support frames 431 at the other end thereof, with both ends of the driven shaft 433 being rotatably connected to the support frames 431 via bearing assemblies. At least two conveying chains 434 are disposed between the driving and driven shafts 432 and 433. A driving sprocket 435 is disposed on the driving shaft 432, which cooperates with the conveying chains 434. A driven sprocket 436 is disposed on the driven shaft 433, which cooperates with the conveying chains 434. One end of the driving shaft 432 passes through the furnace body 42 and extends to the outside of the furnace body 42 , and is then connected to the power output shaft of the third driving motor 438 through the third transmission mechanism 437 .

[0056] As a specific implementation, two conveying chains 434 are provided between the driving shaft 432 and the driven shaft 433 in this embodiment, and the third transmission mechanism 437 adopts synchronous belt transmission.

[0057] The support frame 431, the driving shaft 432, the driven shaft 433, the conveying chain 434, the driving sprocket 435, the driven sprocket 436 and the bearing assemblies located at both ends of the driving shaft 432 and the driven shaft 433 are all made of fire-resistant steel.

[0058] As a specific embodiment, the support frame 431 described in this embodiment comprises two end frames 4311. Each of the end frames 4311 includes a second web. A second wing extends perpendicularly from the second web toward the conveyor chain 434 at the inner end of the second web (with the opposite end frames 4311 as the inner side). A third wing extends perpendicularly from the second web toward the conveyor chain 434 at the outer end of the second web (with the opposite end frames 4311 as the inner side). Ribs are provided within the U-shaped structure formed by the second web, the second wing, and the third wing, with the opening facing the conveyor chain 434. The second web is fixedly connected to the sidewall of the heating chamber of the furnace body 42 via screws (not shown). The bearing assemblies at both ends of the driving shaft 432 and the driven shaft 433 utilize seated bearings, which are fixed to the outer side of the third wing (with the opposite side of the second and third wing as the inner side) via screws (not shown). A tie rod 4312 is provided between the two end frames 4311. One end of the tie rod 4312 is detachably fixedly connected to the second wing plate of one end frame 4311, and the other end of the tie rod 4312 is detachably fixedly connected to the second wing plate of the other end frame 4311. Exemplarily, two tie rods 4312 are provided between the two end frames 4311.

[0059] Furthermore, if Figure 20 As shown, a support plate 441 is provided on the lower side of the conveying portion of the conveying chain 434, and the support plate 441 is used to support the conveying portion of the conveying chain 434. The two sides of the support plate 441 along the direction of material travel (according to Figure 1 The coordinate system shown is for the front and rear sides of the support plate 441. A downwardly bent support plate 442 is provided on each side. A horizontally extending flat plate 443 is provided at the lower end of the support plate 442. Flat plate 443 is fixed to the bottom surface of the heating chamber of the furnace body 42 via screws (not shown). The support plate 441, support plate 442, and flat plate 443 are an integrated structure made of refractory steel and processed by bending.

[0060] By providing the support plate 441 , the conveying components of the conveying chain 434 can be supported, thereby providing reliable support for the porcelain boat 1 without affecting the conveying.

[0061] Furthermore, in order to prevent the heat in the furnace body 42 from being transferred to the outside through the driving shaft 432, thereby affecting the normal operation of the third transmission mechanism 437 and the third driving motor 438, as shown in FIG. Figure 20 and Figure 21As shown, the driving shaft 432 includes a first shaft section 4321, a second shaft section 4322, and a third shaft section 4323. The first shaft section 4321 is located in the heating chamber of the furnace body 42, and both ends of the first shaft section 4321 are rotatably connected to the support frame 431 via bearing assemblies. The second shaft section 4322 is located between the first shaft section 4321 and the third shaft section 4323. A plug-in block 43221 is provided at one end of the second shaft section 4322. The first shaft section 4321 is provided with a plug-in hole 43211 that cooperates with the plug-in block 43221. The plug-in block 43221 is inserted into the plug-in hole 43211. Driven by the third drive motor 438, the first shaft section 4321 can rotate synchronously with the second shaft section 4322. As a specific embodiment, the cross-section of the plug block 43221 in this embodiment is a regular hexagon, and accordingly, the cross-section of the plug hole 43211 is a regular hexagon. A first flange plate 43222 is provided at the other end of the second shaft segment 4322, and a second flange plate 43231 is provided at the end of the third shaft segment 4323 facing the second shaft segment 4322. A thermal insulation pad 4324 is disposed between the first and second flange plates 43222 and 43231. The first and second flange plates 43222 and 43231 are connected and fixed by a bolt assembly. The thermal insulation pad 4324 is provided with through holes for accommodating the bolts in the bolt assembly. As a specific embodiment, the thermal insulation pad 4324 in this embodiment is made of asbestos board. The end of the third shaft segment 4323 facing away from the second shaft segment 4322 passes through the second vertical frame 411 on one side of the main frame and is connected to the power output shaft of the third drive motor 438 through the third transmission mechanism 437. The third shaft segment 4323 is rotatably connected to the second vertical frame 411 through a bearing assembly.

[0062] Furthermore, an escape groove for accommodating the first flange plate 43222 and the second flange plate 43231 is provided on the outer surface of the furnace body 42 .

[0063] Further, if Figure 16 and Figure 17 As shown, the furnace body 42 adopts a split structure, including a base 421 and an upper cover 422. The base 421 is provided with a first groove that runs through the base 421 along the direction of material travel, and the upper cover 422 is provided with a second groove that runs through the base 421 along the direction of material travel. When the upper cover 422 and the base 421 are fastened together, the first and second grooves together form the heating chamber. The third conveying member 43 is located in the first groove, and the heating element 4221 is a silicon carbon rod and is fixedly mounted in the second groove of the upper cover 422 in a detachable manner.

[0064] Furthermore, limiting blocks 4222 are respectively provided on both sides of the second groove on the lower side of the upper cover 422, and limiting grooves 4211 that cooperate with the limiting blocks 4222 are respectively provided on both sides of the first groove on the upper side of the base 421.

[0065] The structure of the secondary weighing device 5 is the same as that of the primary weighing device 3 , and will not be described in detail here.

[0066] The structure of the unloading device 6 is the same as that of the loading device 2 and will not be described in detail here.

[0067] The working process is as follows: First, the material to be tested is spread flatly in the porcelain boat 1, and the thickness of the material is less than 5 mm. Preferably, the thickness of the material is 3-5 mm.

[0068] Second, the porcelain boats 1 loaded with materials are placed on the loading device 2 in sequence, and the porcelain boats 1 with materials to be tested are transported to the primary weighing device 3 through the loading device 2 .

[0069] Third, when the detection switch 34 on the primary weighing device 3 detects the porcelain boat 1, the barcode scanner 35 scans the barcode 11 on the porcelain boat 1, reads the boat's attribute information, and uploads it to the control device. Simultaneously, the weighing sensor measures the weight of the material to be tested within the porcelain boat 1, obtaining a weight M1'. This weight is then uploaded to the control system, which correlates the porcelain boat 1 attribute information uploaded by the barcode scanner 35 with the weight information of the material to be tested.

[0070] Third, the sealing part 45 of the burning device is in the open state (that is, the mounting frame is in the upper limit position relative to the sliding door frame), and the second conveying part of the weighing device 3 and the third conveying part 43 of the burning device are actuated, thereby conveying the porcelain boat 1 on the weighing device 3 to the heating chamber of the burning device.

[0071] Fourth, repeat the operations of steps 3 and 4 until the heating chamber is filled with the porcelain boat 1 .

[0072] Fifth, the mounting frame, driven by the first drive member, moves downward to its lower limit (at which point the sealing plate 453 is aligned with the furnace body 42). During this process, the second drive member 47 is depressurized, and the piston rod, driven by the mounting frame, retracts. Then, the second drive member 47 is activated, the piston rod actively retracts, and through the connecting column 4526, the entire sealing assembly 45 overcomes the elastic force of the first spring 461 and moves toward the furnace body 42 until the sealing plate 453 is pressed tightly against the open end of the furnace body 42.

[0073] Sixth, the heating element 4221 of the burning device works, thereby burning the material to be tested in the furnace body 42 .

[0074] Seventh, after the burning is complete, the second drive member 47 releases pressure. The sealing member 45, under the elastic restoring force of the first spring 461, moves away from the furnace body 42 until it reaches a balanced position. The first drive member then operates, driving the mounting frame upward relative to the sliding door to its upper limit. At this point, the piston rod of the second drive member 47 is passively extended by the mounting frame.

[0075] Eighth, the feeding device 2, the primary weighing device 3, the burning device, the secondary weighing device 5 and the conveying parts of the unloading device 6 are started at the same time. After the detection switch 34 on the secondary weighing device 5 detects the porcelain boat 1, the barcode scanner 35 scans the barcode 11 on the porcelain boat 1, and reads the attribute information of the porcelain boat 1 and uploads it to the control device. At the same time, the weighing sensor performs a secondary weighing on the weight of the material to be detected in the porcelain boat 1 to obtain the weight of the material to be detected as M2', and uploads it to the control system. In the control device, according to the attribute information of the porcelain boat 1 uploaded by the barcode scanner 35, the control device searches for the weight information M1' of the material to be detected and the attribute information of the porcelain boat 1 in the primary weighing, and uses the formula: Ash content = (M1'-C) / (M2'-C) × 100% Where: C is the weight of porcelain boat 1; M1' is the weight of the material to be tested measured by the weighing device 3; M2' is the weight of the material to be tested measured by the secondary weighing device 5.

[0076] Calculate the ash content.

[0077] Ninth, repeat the operation of step 8 until all the porcelain boats 1 in the calcination device are weighed and the ash content of each is calculated. When all the porcelain boats 1 in the calcination device are weighed, the calcination device is refilled with porcelain boats 1, and then repeat the operation of step 5 and perform the next round of heating and weighing.

[0078] Other embodiments obtained by those skilled in the art by combining, splitting, reorganizing, etc. the embodiments provided in this application do not exceed the scope of protection of this application.

[0079] The above specific implementation methods provide a detailed description of the purpose, technical solutions and beneficial effects of the embodiments of the present application. The above is only a specific implementation method of the embodiments of the present application and is not intended to limit the scope of protection of the embodiments of the present application. That is, any modifications, equivalent replacements, improvements, etc. made on the basis of the embodiments of the present application should be included in the scope of protection of the embodiments of the present application.

Claims

1. A petroleum coke ash content testing device for prebaked anodes, characterized by: It comprises a porcelain boat (1) for holding materials, and a loading device (2), a primary weighing device (3), a burning device, a secondary weighing device (5) and a unloading device (6) arranged in sequence along the direction of travel of the materials; The primary weighing device (3) and the secondary weighing device (5) have the same structure, both comprising a base frame and a conveying device located above the base frame, and a weighing sensor (33) is provided between the base frame and the conveying device; The burning device comprises a main frame and a heating part arranged on the main frame; The heating unit comprises a furnace body (42) with openings at both ends, a heating element (4221) and a third conveying component (43) are provided in the heating chamber of the furnace body (42), and a blocking unit (45) is provided on the main frame at the openings at both ends of the furnace body (42). The blocking part (45) comprises a sliding door frame slidably arranged on the main frame, and the sliding direction of the sliding door frame is the same as the traveling direction of the material; A mounting frame is slidably provided in the sliding door frame, and a first driving member is provided between the mounting frame and the sliding door frame for driving the mounting frame to slide up and down relative to the sliding door frame; The installation frame is provided with a sealing plate (453) and a roller (454) in sequence from top to bottom, and both ends of the roller (454) are rotatably connected to the installation frame respectively; When the mounting frame is at the upper limit position, the porcelain boat (1) can enter the third conveying component (43) in the furnace body (42) through the space between the sealing plate (453) and the roller (454) under the support of the roller (454); When the mounting frame is at the lower limit position, the sealing plate (453) is aligned with the furnace body (42); A first spring (461) is provided between the sliding door frame and the main frame body for preventing the sliding door frame from approaching the furnace body (42); A second driving member (47) is provided on both sides of the furnace body (42) between the sealing portion (45) and the main frame, and a connecting column (4526) is provided on the mounting frame. The cylinder body of the second driving member (47) is hinged to the main frame, and the rod end of the piston rod of the second driving member (47) is hinged to the connecting column (4526).

2. The ash content testing device for petroleum coke for prebaked anodes according to claim 1, characterized in that: The sliding door frame is provided with a connecting block (4514), and the connecting block (4514) is provided with a connecting groove. When the mounting frame is at the lower limit position, the connecting column (4526) is located in the connecting groove.

3. The ash content testing device for petroleum coke for prebaked anodes according to claim 1, characterized in that: The sliding door frame includes a crossbeam (4511), and vertical beams (4512) are respectively provided at both ends of the crossbeam (4511). A guide column (4111) is provided on the main frame body, and a guide seat (4513) that matches the guide column (4111) is provided at the lower end of the vertical beam (4512). The first spring (461) is sleeved on the guide column (4111) and is located on the side of the guide seat (4513) close to the furnace body (42).

4. The ash content testing device for petroleum coke for prebaked anodes according to claim 1, characterized in that: The mounting frame includes an upper frame (4521), and side frames (4522) are respectively provided at both ends of the upper frame (4521). The sealing plate (453) is located between the two side frames (4522), and the upper end of the sealing plate (453) is inserted into the upper frame (4521). The two side ends of the sealing plate (453) are respectively inserted into the side frames (4522). A lower frame (4523) is provided between the two side frames (4522) and below the sealing plate (453). The lower end of the sealing plate (453) is inserted into the lower frame (4523), and the two ends of the lower frame (4523) are respectively fixedly connected to the side frames (4522) in a detachable manner. A second side beam (4524) is provided at the lower end of the side frame (4522), and the two ends of the roller (454) are respectively rotatably connected to the second side beam (4524).

5. The ash content testing equipment for petroleum coke for prebaked anodes according to claim 1, characterized in that: The third conveying component (43) includes two support frames (431), a driving shaft (432) and a driven shaft (433) are arranged between the two support frames (431), at least two conveying chains (434) are arranged between the driving shaft (432) and the driven shaft (433), a driving sprocket (435) matching the conveying chain (434) is arranged on the driving shaft (432), and a driven sprocket (436) matching the conveying chain (434) is arranged on the driven shaft (433), and one end of the driving shaft (432) passes through the furnace body (42) and extends to the outside of the furnace body (42) and is connected to the power output shaft of the third drive motor (438).

6. The ash content testing device for petroleum coke for prebaked anodes according to claim 5, characterized in that: A support plate (441) is provided on the lower side of the conveying portion of the conveying chain (434), and support plates (442) are provided on both sides of the support plate (441), and the lower ends of the support plates (442) are fixedly connected to the bottom surface of the heating chamber in a detachable manner.

7. The ash content testing device for petroleum coke for prebaked anodes according to claim 5, characterized in that: The driving shaft (432) includes a first shaft section (4321), a second shaft section (4322) and a third shaft section (4323) in sequence. The first shaft section (4321) is located in the heating chamber of the furnace body (42). The second shaft section (4322) is provided with a plug-in block (43221) at one end facing the first shaft section (4321). The first shaft section (4321) is provided with a plug-in hole (43211) that matches the plug-in block (43221). A first flange plate (43222) is provided at one end of the second shaft segment (4322) facing the third shaft segment (4323), a second flange plate (43231) is provided at one end of the third shaft segment (4323) facing the second shaft segment (4322), a thermal insulation pad (4324) is provided between the first flange plate (43222) and the second flange plate (43231), and the first flange plate (43222) and the second flange plate (43231) are connected and fixed by a bolt assembly.

8. The ash content testing device for petroleum coke for prebaked anodes according to claim 1, characterized in that: The furnace body (42) includes a base (421) and an upper cover (422), the base (421) is provided with a first groove penetrating the base (421) along the direction of material travel, and the upper cover (422) is provided with a second groove penetrating the base (421) along the direction of material travel. When the upper cover (422) and the base (421) are buckled together, the first groove and the second groove jointly form the heating chamber, and the heating element (4221) is arranged in the second groove of the upper cover (422). Limiting blocks (4222) are respectively provided on both sides of the second groove of the upper cover (422), and limiting grooves (4211) that cooperate with the limiting blocks (4222) are respectively provided on both sides of the first groove of the base (421).

9. The ash content testing equipment for petroleum coke for prebaked anodes according to claim 1, characterized in that: The loading device (2) and the unloading device (6) have the same structure, both comprising a first conveying frame and a first conveying component arranged on the first conveying frame, the conveying component comprising a second conveying frame and a second conveying component arranged on the second conveying frame, the lower end of the weighing sensor (33) is connected to the base frame, and the upper end of the weighing sensor (33) is connected to the second conveying frame.

10. The ash content testing equipment for petroleum coke for prebaked anodes according to claim 9, characterized in that: The second conveying frame is provided with a detection switch (34) at the discharge end, the second conveying frame is provided with a barcode scanner (35), and the porcelain boat (1) is provided with a barcode (11). When the detection switch (34) detects the porcelain boat (1), the barcode scanner (35) is aligned with the barcode (11) on the porcelain boat (1).

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