Roasting device and roasting method for graphite electrode production

Abstract

The invention discloses a roasting device and a roasting method for graphite electrode production, and particularly relates to the technical field of graphite electrode production, the roasting device comprises a base, a supporting frame is fixedly mounted at the top end of the base, a roasting mechanism is arranged in the middle of the supporting frame, and the roasting mechanism comprises a roasting outer frame; a roasting outer frame is arranged on the base, a roasting top disc is fixedly clamped at the top end of the roasting outer frame, a roasting bottom disc is fixedly clamped at the bottom end of the roasting outer frame, a material placing mechanism is arranged in the roasting outer frame, a graphite electrode column is arranged in the material placing mechanism, and a discharging mechanism used in cooperation with the roasting mechanism is arranged on one side of the top end of the base. According to the device, the material placing mechanism is used in a matched mode, the multiple graphite electrode columns can be subjected to automatic transposition in sequence, the graphite electrode columns are subjected to automatic roasting machining in sequence, during roasting machining, filling materials do not need to be added to the outer portions of the graphite electrode columns, and it is prevented that the surfaces of the graphite electrode columns are coated with more filling materials in the subsequent roasting process.

Description

Technical Field

[0001] The invention relates to the technical field of graphite electrode production, in particular to a baking device and a baking method for graphite electrode production. Background Art

[0002] Graphite electrode is an electrode used in electrochemical and smelting processes. It is mainly made of high-purity graphite material and has good conductivity, high temperature resistance, chemical stability and mechanical strength. It is widely used in electric arc furnace steelmaking, aluminum electrolysis, electrochemical processing and other fields. The roasting of graphite electrode is an important step in the production process, mainly used to graphitize the raw materials and enhance the performance of the electrode.

[0003] Traditionally, graphite electrodes are roasted in a furnace using external lifting equipment and are placed vertically one by one. The electrodes are then filled with covering materials and then roasted. After roasting, the upper covering materials are manually cleaned and the graphite electrodes are hoisted out of the furnace and laid flat using lifting equipment. The surface of the graphite electrodes is covered with a lot of covering materials, which need to be cleaned separately later, which is troublesome. To this end, we propose a roasting device and a roasting method for graphite electrode production to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a baking device and a baking method for producing graphite electrodes to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a baking device for graphite electrode production, comprising a base, a support frame is fixedly installed on the top of the base, a baking mechanism is provided in the middle of the support frame, the baking mechanism comprises a baking outer frame, a baking top plate is fixedly provided on the top of the baking outer frame, a baking bottom plate is fixedly provided on the bottom of the baking outer frame, a loading mechanism is provided on the baking outer frame, a graphite electrode column is provided in the loading mechanism, and a feeding mechanism used in conjunction with the baking mechanism is provided on one side of the top of the base;

[0006] The material placement mechanism includes a material placement cross frame, and rotating bearings are fixedly installed on the top and bottom of the material placement cross frame, and the rotating bearings are fixedly clamped in the roasting outer frame. A plurality of material placement barrels distributed in a circular array are fixedly clamped on the material placement cross frame, and the upper surface of the material placement barrels contacts the lower surface of the roasting top plate, and the lower surface of the material placement barrels contacts the upper surface of the roasting bottom plate. The graphite electrode column is provided with a plurality of corresponding material placement barrels, and the graphite electrode column is movably placed in the corresponding material placement barrels. Top flow guides and bottom flow guides are provided between the plurality of material placement barrels, and the top flow guides and bottom flow guides are symmetrically distributed. A first heat conduction pipe and a second heat conduction pipe are integrally formed in the middle of opposite sides of the plurality of material placement barrels, and the first heat conduction pipe is located below the second heat conduction pipe.

[0007] As a preferred technical solution of the present invention, a feeding groove is provided on a side of the roasting top plate close to one of the material placing barrels, a roasting top groove is provided on a side of the roasting top plate away from the feeding groove, the roasting top groove corresponds to the position of one of the material placing barrels, a first circulation groove is provided on a side of the roasting top plate close to the feeding groove, the first circulation groove corresponds to the position of one of the material placing barrels, a second circulation groove is provided on a side of the roasting top groove of the roasting top plate, the second circulation groove corresponds to the position of one of the material placing barrels, a roasting bottom groove vertically corresponding to the position of the roasting top groove is provided on the roasting bottom plate, a third circulation groove is provided on a side of the roasting bottom groove of the roasting bottom plate, the position of the third circulation groove vertically corresponds to the position of the second circulation groove, a discharging groove is provided on a side of the roasting bottom plate close to the feeding groove, and the roasting A hollow disk is fixedly mounted in the bottom groove and the third circulation groove, a combustion nozzle is fixedly mounted on one side of the top of the roasting top plate close to the roasting top groove and one side of the bottom of the roasting bottom groove, and an injection pipe is fixedly mounted on the ends of the two combustion nozzles, a first circulation cylinder is fixedly mounted on one side of the top of the roasting top plate close to the second circulation groove, a second circulation cylinder is fixedly mounted on one side of the top of the roasting top plate close to the first circulation groove, the first circulation cylinder and the second circulation cylinder are installed in communication with each other, a third circulation cylinder is fixedly mounted on one side of the bottom end of the roasting bottom plate close to the third circulation groove, a fourth circulation cylinder is fixedly mounted on the middle part of the bottom end of the roasting bottom plate, a first circulation pump is fixedly mounted between the fourth circulation cylinder and the third circulation cylinder, a fifth circulation cylinder is fixedly mounted on the middle part of the top end of the roasting top plate, and a second circulation pump is fixedly mounted between the fifth circulation cylinder and the second circulation cylinder.

[0008] As a preferred technical solution of the present invention, the top guide member includes a guide tube, a first connecting pipe is integrally formed in the middle of the top end of the guide tube, a partition plate is fixedly provided in the middle of the inner side of the guide tube, a guide groove is provided on the side of the partition plate close to the roasting top groove, a flow control plate is provided on the lower surface of the partition plate, a plurality of installation grooves corresponding to the material placing barrel are provided on the flow control plate, and connecting bent pipes are fixedly provided in the installation grooves.

[0009] As a preferred technical solution of the present invention, the top flow guide is fixedly installed on the middle part of the bottom end of the roasting top plate through the flow guide tube, the top end of the first connecting pipe in the top flow guide and the bottom end of the fifth circulation tube are fixedly installed, and the bottom end of the connecting elbow in the top flow guide and the end of the second heat conduction tube in the corresponding material placing tube are fixedly installed.

[0010] As a preferred technical solution of the present invention, the structure of the bottom guide member is the same as that of the top guide member, and the bottom guide member is fixedly installed on the middle part of the top end of the roasting chassis through a guide tube, the bottom end of the first connecting pipe in the bottom guide member and the top end of the fourth circulation tube are fixedly installed, and the bottom end of the connecting elbow in the bottom guide member and the end of the first heat conduction tube in the corresponding material placing tube are fixedly installed.

[0011] As a preferred technical solution of the present invention, a driven gear ring is fixedly installed in the middle of the material loading horizontal frame, a protective cover is fixedly installed on the side of the outer wall of the roasting outer frame close to the driven gear ring, a driving gear is rotatably installed in the protective cover, the driving gear and the driven gear ring are meshingly connected, a first motor is fixedly installed on the top of the protective cover, and the driving end of the first motor and the middle of the driving gear are fixedly installed.

[0012] As a preferred technical solution of the present invention, the unloading mechanism includes two symmetrically distributed material loading side frames, the tops of the material loading side frames are rotatably installed with flip shafts, the opposite ends of the flip shafts are fixedly installed with material loading vertical frames, the bottom ends of the two material loading vertical frames are fixedly installed with material loading base frames, two symmetrically distributed support rods are fixedly installed on the material loading base frames, a threaded rod is rotatably installed on the middle part of one side of the material loading base frame away from the support rod, a lifting plate is movably installed on the top of the support rod, the threaded rod is threadedly installed on one side of the lifting plate, a material loading base is fixedly installed on the top of the lifting plate, and the material loading base is movably clamped in the discharge groove.

[0013] As a preferred technical solution of the present invention, a worm wheel is fixedly installed at one end of the flip shaft away from the material loading longitudinal frame, a worm is meshingly connected to the outer side of the worm wheel, the worm is rotatably installed on the material loading side frame, a second motor is fixedly installed on the side of the material loading side frame close to the worm, and the driving end of the second motor and one end of the worm are fixedly installed.

[0014] As a preferred technical solution of the present invention, a crown gear is fixedly installed on the bottom end of the threaded rod, a third motor is fixedly installed on the side of the bottom end of the material loading base close to the crown gear, a transmission gear is fixedly installed on the driving end of the third motor, and the transmission gear is meshingly connected with the crown gear.

[0015] A roasting method for a roasting device for producing graphite electrodes, comprising the following steps:

[0016] Step 1: Connect the end of the injection pipe to the output port of the hot gas output system, and sequentially place the graphite electrode column to be roasted in one of the corresponding placing barrels through the feeding slot, and control the first motor to drive the driving gear to drive the driven gear ring and the placing cross frame to rotate, thereby driving multiple placing barrels to rotate in the roasting outer frame, so that each placing barrel drives the internal graphite electrode column to rotate and move from the feeding slot to the roasting top slot and the roasting bottom slot in sequence;

[0017] Step 2: Control and start the hot gas output system, and the hot gas is introduced into the combustion nozzle through the injection pipe for combustion, so as to automatically bake the graphite electrode column between the baking top tank and the baking bottom tank;

[0018] When the graphite electrode column between the roasting top groove and the roasting bottom groove is automatically roasted, the first circulation pump and the second circulation pump are controlled to be turned on, and the excess heat in the barrel at this position can be introduced into the corresponding bottom guide member through the first heat conduction pipe, and introduced into the guide tube in the bottom guide member through the guide groove in the bottom guide member, and introduced into the fourth circulation tube through the first connecting tube, and the third circulation tube through the hollow plate into the corresponding barrel, so as to preheat the internal graphite electrode column, and introduced into another barrel through the second circulation groove, the first circulation tube, and the second circulation tube, so as to preheat the internal graphite electrode column, and introduced into the guide tube in the top guide member through the fifth circulation tube, and introduced into the corresponding top guide member through the guide groove in the top guide member The connecting elbow, and circulate into the barrel between the roasting top groove and the roasting bottom groove through the second heat conduction pipe;

[0019] Step 3. After the graphite electrode column is roasted, continue to rotate each loading barrel, transfer it to the discharge slot position, place it on the loading base, control the third motor to drive the transmission gear to drive the crown gear to rotate, thereby controlling the threaded rod to rotate, driving the loading base and the graphite electrode column after roasting to descend, and after descending to the lowest position, control the second motor to drive the worm to drive the worm wheel and the flip shaft to rotate, thereby driving the graphite electrode column to flip, so that the graphite electrode column flips to a horizontal state, and continues to rotate, so that the graphite electrode column is in an inclined state, which is convenient for the graphite electrode column to slide down for automatic unloading.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. By setting up a baking mechanism and using a material placing mechanism in combination, a plurality of graphite electrode columns can be automatically indexed in sequence, and the graphite electrode columns can be automatically baked in sequence. During the baking process, there is no need to add fillers to the outside of the graphite electrode columns, so as to prevent the surface of the graphite electrode columns from being covered with a lot of fillers during subsequent baking.

[0022] 2. By setting up a baking mechanism, when automatically baking the graphite electrode column, the heat can be recycled to preheat the graphite electrode column to be baked, thereby facilitating the subsequent baking of the graphite electrode column and improving the baking efficiency of the graphite electrode column.

[0023] 3. By setting up the unloading mechanism, the graphite electrode column can be controlled to descend and flip, so that the graphite electrode column flips to a horizontal state, and continues to rotate, so that the graphite electrode column is in an inclined state, which is convenient for the graphite electrode column to slide down for automatic unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the structure of the present invention.

[0026] Figure 2 It is a schematic diagram of the structural connection between the roasting mechanism and the material placing mechanism in the present invention.

[0027] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle.

[0028] Figure 4 For the present invention Figure 2 Enlarged view of point B in the middle.

[0029] Figure 5 It is a schematic diagram of partial structural connection of the roasting mechanism and the material placing mechanism in the present invention.

[0030] Figure 6 It is a structural schematic diagram of the material placing mechanism in the present invention.

[0031] Figure 7 It is a schematic structural diagram of the top flow guide member in the present invention.

[0032] Figure 8 It is a structural schematic diagram of the feeding mechanism in the present invention.

[0033] Fig. 9 For the present invention Figure 8 Enlarged view of point C in the middle.

[0034] Fig.10 It is a partial structural schematic diagram of the feeding mechanism in the present invention.

[0035] Fig.11 For the present invention Fig.10 Enlarged view of point D in the middle.

[0036] In the figure: 1, base; 2, support frame; 3, roasting mechanism; 4, material placement mechanism; 5, graphite electrode column; 6, material discharge mechanism; 31, roasting outer frame; 32, roasting top plate; 33, roasting bottom plate; 34, hollow plate; 301, feed slot; 302, roasting top slot; 3021, roasting bottom slot; 303, first circulation slot; 304, second circulation slot; 3041, third circulation slot; 305, discharge slot; 35, combustion nozzle; 351, injection pipe; 36, first circulation cylinder; 361, second circulation cylinder; 37, third circulation cylinder; 38, fifth circulation cylinder; 381, fourth circulation cylinder; 382, ​​second circulation pump; 383, first circulation pump; 41, material placement horizontal frame; 411, rotary bearing; 42 , material placement barrel; 421, first heat conduction pipe; 422, second heat conduction pipe; 43, driven gear ring; 44, protective cover; 441, driving gear; 442, first motor; 45, top guide piece; 451, guide barrel; 4511, first connecting pipe; 452, partition plate; 4521, guide groove; 453, flow control plate; 4531, installation groove; 454, connecting elbow; 46, bottom guide piece; 61, material placement side frame; 62, turning shaft; 621, worm gear; 622, worm; 623, second motor; 63, material placement vertical frame; 64, material placement bottom frame; 65, support rod; 66, threaded rod; 661, crown gear; 662, third motor; 663, transmission gear; 67, lifting plate; 68, material placement base. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example: Figure 1-11 As shown, the present invention provides a baking device for graphite electrode production, including a base 1, a support frame 2 is fixedly installed on the top of the base 1, a baking mechanism 3 is provided in the middle of the support frame 2, the baking mechanism 3 includes a baking outer frame 31, the baking outer frame 31 is fixedly installed in the middle of the support frame 2, a baking top plate 32 is fixedly provided on the top of the baking outer frame 31, a baking bottom plate 33 is fixedly provided on the bottom of the baking outer frame 31, a feeding mechanism 4 is provided in the baking outer frame 31, a graphite electrode column 5 is provided in the feeding mechanism 4, and a feeding mechanism 6 used in conjunction with the baking mechanism 3 is provided on one side of the top of the base 1;

[0039] The material placement mechanism 4 includes a material placement cross frame 41, and a rotating bearing 411 is fixedly installed on the top and bottom of the material placement cross frame 41. The rotating bearing 411 is fixedly connected to the roasting outer frame 31, and the material placement cross frame 41 is convenient for rotating in the roasting outer frame 31. A plurality of material placement barrels 42 distributed in a ring array are fixedly provided on the material placement cross frame 41. The upper surface of the material placement barrel 42 contacts the lower surface of the roasting top plate 32, and the lower surface of the material placement barrel 42 contacts the upper surface of the roasting bottom plate 33. The graphite electrode column 5 is provided with a plurality of corresponding material placement barrels 42, and the graphite electrode column 5 is movably placed in the corresponding material placement barrels 42. A top flow guide 45 and a bottom flow guide 46 are provided between the plurality of material placement barrels 42, and the top flow guide 45 and the bottom flow guide 46 are symmetrically distributed. A first heat conducting pipe 421 and a second heat conducting pipe 422 are integrally formed in the middle of the opposite sides of the plurality of material placement barrels 42, and the first heat conducting pipe 421 is located below the second heat conducting pipe 422.

[0040] A feeding groove 301 is provided on one side of the roasting top plate 32 near one of the loading barrels 42, and the graphite electrode column 5 to be roasted is placed in the corresponding one of the loading barrels 42 through the feeding groove 301. A roasting top groove 302 is provided on the side of the roasting top plate 32 away from the feeding groove 301, and the roasting top groove 302 corresponds to the position of one of the loading barrels 42. A first circulation groove 303 is provided on the side of the roasting top plate 32 near the feeding groove 301, and the first circulation groove 303 corresponds to the position of one of the loading barrels 42. A second circulation groove 304 is provided on the side of the roasting top plate 32 near the roasting top groove 302, and the second circulation groove 304 corresponds to the position of one of the loading barrels 42.

[0041] A roasting bottom groove 3021 is provided on the roasting bottom plate 33, which corresponds vertically to the roasting top groove 302. A third circulation through groove 3041 is provided on one side of the roasting bottom groove 3021 of the roasting bottom plate 33. The position of the third circulation through groove 3041 corresponds vertically to the position of the second circulation through groove 304.

[0042] A discharging groove 305 is provided on one side of the roasting bottom plate 33 near the feeding groove 301, a hollow plate 34 is fixedly clamped in the roasting bottom groove 3021 and the third circulation groove 3041, a combustion nozzle 35 is fixedly installed on one side of the top of the roasting top plate 32 near the roasting top groove 302 and on one side of the bottom of the roasting bottom groove 3021 of the roasting bottom plate 33, and an injection pipe 351 is fixedly installed at the ends of the two combustion nozzles 35, the ends of the injection pipe 351 are connected to the output port of the hot gas output system, and the hot gas output system is controlled to be turned on, and the hot gas is introduced into the combustion nozzle 35 through the injection pipe 351 for combustion, so that the graphite electrode column 5 between the roasting top groove 302 and the roasting bottom groove 3021 is automatically roasted, and during the roasting process, there is no need to add filler to the outside of the graphite electrode column 5, so as to prevent the surface of the graphite electrode column 5 from being covered with a lot of filler during subsequent roasting;

[0043] A first circulation cylinder 36 is fixedly installed on the side of the top of the roasting top plate 32 close to the second circulation groove 304, a second circulation cylinder 361 is fixedly installed on the side of the top of the roasting top plate 32 close to the first circulation groove 303, the first circulation cylinder 36 and the second circulation cylinder 361 are installed in communication with each other, a third circulation cylinder 37 is fixedly installed on the side of the bottom of the roasting bottom plate 33 close to the third circulation groove 3041, a fourth circulation cylinder 381 is fixedly installed in the middle of the bottom end of the roasting bottom plate 33, a first circulation pump 383 is fixedly installed between the fourth circulation cylinder 381 and the third circulation cylinder 37, a fifth circulation cylinder 38 is fixedly installed in the middle of the top end of the roasting top plate 32, and a second circulation pump 382 is fixedly installed between the fifth circulation cylinder 38 and the second circulation cylinder 361.

[0044] The top guide member 45 includes a guide tube 451, a first connecting pipe 4511 is integrally formed at the middle of the top of the guide tube 451, a partition plate 452 is fixedly clamped at the middle of the inner side of the guide tube 451, a guide groove 4521 is provided at a side of the partition plate 452 close to the roasting top groove 302, a flow control plate 453 is provided on the lower surface of the partition plate 452, a plurality of mounting grooves 4531 corresponding to the material placing tube 42 are provided on the flow control plate 453, and a connecting elbow 454 is fixedly clamped in each of the mounting grooves 4531; the top guide member 45 is fixedly mounted at the middle of the bottom end of the roasting top plate 32 through the guide tube 451, and the first connecting pipe 4511 in the top guide member 45 is fixedly clamped at the middle of the bottom end of the roasting top plate 32. The top of the fifth circulation cylinder 38 is fixedly installed, the bottom end of the connecting elbow 454 in the top flow guide 45 is fixedly installed with the end of the second heat conducting pipe 422 in the corresponding material placing cylinder 42; the structure of the bottom flow guide 46 is the same as that of the top flow guide 45, the bottom flow guide 46 is fixedly installed at the middle of the top of the roasting bottom plate 33 through the flow guide cylinder 451, the bottom end of the first connecting pipe 4511 in the bottom flow guide 46 is fixedly installed with the top of the fourth circulation cylinder 381, the bottom end of the connecting elbow 454 in the bottom flow guide 46 is fixedly installed with the end of the first heat conducting pipe 421 in the corresponding material placing cylinder 42, and the roasting top groove 302 is set at the corresponding position of the flow guide The through groove 4521, when the graphite electrode column 5 between the top calcination groove 302 and the bottom calcination groove 3021 is automatically calcined, the first circulation pump 383 and the second circulation pump 382 are controlled to be turned on, and the excess heat in the barrel 42 at this position can be introduced into the corresponding bottom guide member 46 through the first heat conduction pipe 421 The connecting elbow 454, and then introduced into the guide cylinder 451 in the bottom guide member 46 through the guide through groove 4521, and then introduced into the fourth circulation cylinder 381 and the third circulation cylinder 37 through the hollow plate 34. The corresponding material barrel 42 is preheated, and the second circulation pump 383 and the second circulation pump 382 are used to heat the graphite electrode column 5 inside. The annular groove 304, the first circulation tube 36, and the second circulation tube 361 are introduced into another material placement tube 42 to preheat the internal graphite electrode column 5, and are introduced into the guide tube 451 in the top guide member 45 through the fifth circulation tube 38, and are introduced into the connecting elbow 454 in the corresponding top guide member 45 through the guide groove 4521 in the top guide member 45, and are circulated into the material placement tube 42 between the roasting top groove 302 and the roasting bottom groove 3021 through the second heat conduction pipe 422, so as to realize the recycling of heat, preheat the graphite electrode column 5 to be roasted, thereby facilitating the subsequent roasting of the graphite electrode column 5 and improving the roasting efficiency of the graphite electrode column 5.

[0045] A driven gear ring 43 is fixedly installed in the middle of the material loading horizontal frame 41, and a protective cover 44 is fixedly installed on one side of the outer wall of the roasting outer frame 31 close to the driven gear ring 43. A driving gear 441 is rotatably installed in the protective cover 44, and the driving gear 441 is meshed and connected with the driven gear ring 43. A first motor 442 is fixedly installed on the top of the protective cover 44, and the driving end of the first motor 442 is fixedly installed on the middle of the driving gear 441. When in use, the first motor 442 is controlled to start with The dynamic driving gear 441 drives the driven gear ring 43 and the material placement cross frame 41 to rotate, thereby driving the multiple material placement barrels 42 to rotate in the roasting outer frame 31, so that each material placement barrel 42 drives the internal graphite electrode column 5 to rotate from the feeding groove 301 to the roasting top groove 302 and the roasting bottom groove 3021 in turn, and rotate to the position of the discharge groove 305, so as to facilitate the automatic rotation of the graphite electrode column 5, so that the graphite electrode column 5 can be automatically roasted and automatically unloaded.

[0046] The unloading mechanism 6 includes two symmetrically distributed material placement side frames 61, the tops of the material placement side frames 61 are rotatably mounted with a flip shaft 62, the opposite ends of the flip shaft 62 are fixedly mounted with a material placement vertical frame 63, the bottom ends of the two material placement vertical frames 63 are fixedly mounted with a material placement bottom frame 64, two symmetrically distributed support rods 65 are fixedly mounted on the material placement bottom frame 64, a threaded rod 66 is rotatably mounted on the middle of one side of the material placement bottom frame 64 away from the support rod 65, a lifting plate 67 is movably mounted on the top of the support rod 65, the threaded rod 66 is threadedly mounted on one side of the lifting plate 67, a material placement base 68 is fixedly mounted on the top of the lifting plate 67, the material placement base 68 is movably clamped in the material discharge groove 305, and when the graphite electrode column 5 is roasted, it is transferred to the material discharge groove 305 and placed on the material placement base 68;

[0047] A worm gear 621 is fixedly installed at one end of the flip shaft 62 away from the material placement vertical frame 63, and a worm 622 is meshedly connected to the outer side of the worm gear 621. The worm 622 is rotatably installed on the material placement side frame 61. A second motor 623 is fixedly installed on one side of the material placement side frame 61 close to the worm 622. The driving end of the second motor 623 and one end of the worm 622 are fixedly installed.

[0048] A crown gear 661 is fixedly installed at the bottom end of the threaded rod 66, and a third motor 662 is fixedly installed on one side of the bottom end of the material placement base 64 close to the crown gear 661. A transmission gear 663 is fixedly installed at the driving end of the third motor 662. The transmission gear 663 and the crown gear 661 are meshingly connected. The third motor 662 is controlled to start driving the transmission gear 663 to drive the crown gear 661 to rotate, thereby controlling the threaded rod 66 to rotate, driving the material placement base 68 and the graphite electrode column 5 after roasting to descend. After descending to the lowest position, the second motor 623 is controlled to start driving the worm 622 to drive the worm wheel 621 and the flip shaft 62 to rotate, thereby driving the graphite electrode column 5 to flip, so that the graphite electrode column 5 is flipped to a horizontal state, and continues to rotate, so that the graphite electrode column 5 is in an inclined state, which is convenient for the graphite electrode column 5 to slide down for automatic unloading.

[0049] A roasting method for a roasting device for producing graphite electrodes, comprising the following steps:

[0050] Step 1: Connect the end of the injection pipe 351 to the output port of the hot gas output system, and sequentially place the graphite electrode column 5 to be roasted in one of the corresponding placing barrels 42 through the feeding groove 301, and control the first motor 442 to drive the driving gear 441 to drive the driven gear ring 43 and the placing cross frame 41 to rotate, thereby driving multiple placing barrels 42 to rotate in the roasting outer frame 31, so that each placing barrel 42 drives the internal graphite electrode column 5 to rotate and move from the feeding groove 301 to the roasting top groove 302 and the roasting bottom groove 3021 in sequence;

[0051] Step 2: Control and start the hot gas output system, and the hot gas is introduced into the combustion nozzle 35 through the injection pipe 351 for combustion, so as to automatically bake the graphite electrode column 5 between the baking top groove 302 and the baking bottom groove 3021;

[0052] When the graphite electrode column 5 between the top calcination groove 302 and the bottom calcination groove 3021 is automatically calcined, the first circulation pump 383 and the second circulation pump 382 are controlled to be turned on, and the excess heat in the barrel 42 at this position can be introduced into the corresponding bottom guide member 46 through the first heat conduction pipe 421 to connect the elbow 454, and is introduced into the guide cylinder 451 in the bottom guide member 46 through the guide groove 4521, and is introduced into the fourth circulation cylinder 381 and the third circulation cylinder 37 through the hollow plate 34 to the corresponding In the placing barrel 42, the internal graphite electrode column 5 is preheated, and introduced into another placing barrel 42 through the second circulation groove 304, the first circulation barrel 36, and the second circulation barrel 361, the internal graphite electrode column 5 is preheated, and introduced into the guide barrel 451 in the top guide member 45 through the fifth circulation barrel 38, and introduced into the connecting elbow 454 in the corresponding top guide member 45 through the guide groove 4521 in the top guide member 45, and circulated into the placing barrel 42 between the roasting top groove 302 and the roasting bottom groove 3021 through the second heat conducting pipe 422;

[0053] Step 3, after the graphite electrode column 5 is roasted, each material placement barrel 42 continues to rotate, transfers to the position of the discharge slot 305, and is placed on the material placement base 68, and the third motor 662 is controlled to start driving the transmission gear 663 to drive the crown gear 661 to rotate, thereby controlling the threaded rod 66 to rotate, driving the material placement base 68 and the graphite electrode column 5 after roasting to descend, and after descending to the lowest position, the second motor 623 is controlled to start driving the worm 622 to drive the worm wheel 621 and the flip shaft 62 to rotate, thereby driving the graphite electrode column 5 to flip, so that the graphite electrode column 5 is flipped to a horizontal state, and continues to rotate, so that the graphite electrode column 5 is in an inclined state, so that the graphite electrode column 5 can slide down for automatic unloading.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A baking device for producing graphite electrodes, comprising a base (1), characterized in that: A support frame (2) is fixedly mounted on the top of the base (1), a baking mechanism (3) is provided in the middle of the support frame (2), the baking mechanism (3) comprises a baking outer frame (31), a baking top plate (32) is fixedly mounted on the top of the baking outer frame (31), a baking bottom plate (33) is fixedly mounted on the bottom of the baking outer frame (31), a loading mechanism (4) is provided in the baking outer frame (31), a graphite electrode column (5) is provided in the loading mechanism (4), and a unloading mechanism (6) used in conjunction with the baking mechanism (3) is provided on one side of the top of the base (1); The material placement mechanism (4) comprises a material placement horizontal frame (41), the top and bottom of the material placement horizontal frame (41) are fixedly mounted with rotary bearings (411), the rotary bearings (411) are fixedly clamped in the roasting outer frame (31), a plurality of material placement barrels (42) distributed in a circular array are fixedly clamped on the material placement horizontal frame (41), the upper surface of the material placement barrels (42) is in contact with the lower surface of the roasting top plate (32), the lower surface of the material placement barrels (42) is in contact with the upper surface of the roasting bottom plate (33), and the graphite electrode column (5) A plurality of corresponding material placing barrels (42) are provided, wherein the graphite electrode column (5) is movably placed in the corresponding material placing barrels (42), a top flow guide (45) and a bottom flow guide (46) are provided between the plurality of material placing barrels (42), the top flow guide (45) and the bottom flow guide (46) are symmetrically distributed, and a first heat conducting pipe (421) and a second heat conducting pipe (422) are integrally formed at the middle of opposite sides of the plurality of material placing barrels (42), wherein the first heat conducting pipe (421) is located below the second heat conducting pipe (422).

2. A graphite electrode production baking device according to claim 1, characterized in that: The roasting top plate (32) is provided with a feeding groove (301) on a side close to one of the material placing barrels (42), and the roasting top plate (32) is provided with a roasting top groove (302) on a side away from the feeding groove (301), and the roasting top groove (302) corresponds to the position of one of the material placing barrels (42). The roasting top plate (32) is provided with a first circulation groove (303) on a side close to the feeding groove (301), and the first circulation groove (303) corresponds to the position of one of the material placing barrels (42), and the roasting top plate (32) is provided with a second circulation groove (303) on a side close to the roasting top groove (302). The second circulation through groove (304) corresponds to the position of one of the material placing barrels (42); a roasting bottom groove (3021) vertically corresponding to the position of the roasting top groove (302) is provided on the roasting bottom plate (33); a third circulation through groove (3041) is provided on a side of the roasting bottom groove (3021) close to the roasting bottom groove (3021); the position of the third circulation through groove (3041) corresponds vertically to the position of the second circulation through groove (304); a discharging through groove (305) is provided on a side of the roasting bottom plate (33) close to the feeding through groove (301); the roasting bottom groove (3021), the third circulation through groove (3041) and the discharging through groove (305) are connected to each other; A hollow plate (34) is fixedly mounted in each of the circulation grooves (3041); a combustion nozzle (35) is fixedly mounted on the top of the roasting top plate (32) near the roasting top groove (302) and on the bottom of the roasting bottom plate (33) near the roasting bottom groove (3021); injection pipes (351) are fixedly mounted at the ends of the two combustion nozzles (35); a first circulation tube (36) is fixedly mounted on the top of the roasting top plate (32) near the second circulation groove (304); a second circulation tube (361) is fixedly mounted on the top of the roasting top plate (32) near the first circulation groove (303); The first circulation drum (36) and the second circulation drum (361) are installed in communication with each other; a third circulation drum (37) is fixedly installed on one side of the bottom end of the roasting bottom plate (33) close to the third circulation groove (3041); a fourth circulation drum (381) is fixedly installed in the middle of the bottom end of the roasting bottom plate (33); a first circulation pump (383) is fixedly installed between the fourth circulation drum (381) and the third circulation drum (37); a fifth circulation drum (38) is fixedly installed in the middle of the top end of the roasting top plate (32); a second circulation pump (382) is fixedly installed between the fifth circulation drum (38) and the second circulation drum (361).

3. A graphite electrode production baking device according to claim 2, characterized in that: The top flow guide (45) comprises a flow guide tube (451), a first connecting pipe (4511) is integrally formed at the middle of the top end of the flow guide tube (451), a partition plate (452) is fixedly clamped at the middle of the inner side of the flow guide tube (451), a flow guide through groove (4521) is provided at a side of the partition plate (452) close to the roasting top groove (302), a flow control plate (453) is provided on the lower surface of the partition plate (452), a plurality of installation through grooves (4531) corresponding to the material placing barrel (42) are provided on the flow control plate (453), and a connecting elbow (454) is fixedly clamped in each of the installation through grooves (4531).

4. A graphite electrode production baking device according to claim 3, characterized in that: The top flow guide (45) is fixedly installed at the middle of the bottom end of the roasting top plate (32) through the flow guide tube (451), the top end of the first connecting tube (4511) in the top flow guide (45) and the bottom end of the fifth circulation tube (38) are fixedly installed, and the bottom end of the connecting elbow (454) in the top flow guide (45) and the end of the second heat conduction tube (422) in the corresponding material placement tube (42) are fixedly installed.

5. The graphite electrode production baking device according to claim 3, characterized in that: The structure of the bottom flow guide (46) is the same as that of the top flow guide (45). The bottom flow guide (46) is fixedly installed at the middle of the top end of the roasting bottom plate (33) through the flow guide tube (451). The bottom end of the first connecting tube (4511) in the bottom flow guide (46) is fixedly installed at the top end of the fourth circulation tube (381). The bottom end of the connecting elbow (454) in the bottom flow guide (46) is fixedly installed at the end of the first heat conduction tube (421) in the corresponding material placement tube (42).

6. A graphite electrode production baking device according to claim 1, characterized in that: A driven gear ring (43) is fixedly mounted in the middle of the material loading horizontal frame (41); a protective cover (44) is fixedly mounted on a side of the outer wall of the roasting outer frame (31) close to the driven gear ring (43); a driving gear (441) is rotatably mounted in the protective cover (44); the driving gear (441) and the driven gear ring (43) are meshedly connected; a first motor (442) is fixedly mounted on the top of the protective cover (44); a driving end of the first motor (442) and the middle of the driving gear (441) are fixedly mounted.

7. A graphite electrode production baking device according to claim 1, characterized in that: The unloading mechanism (6) comprises two symmetrically distributed material placement side frames (61), the tops of the material placement side frames (61) are rotatably mounted with a turning shaft (62), the opposite ends of the turning shaft (62) are fixedly mounted with a material placement vertical frame (63), the bottom ends of the two material placement vertical frames (63) are fixedly mounted with a material placement bottom frame (64), two symmetrically distributed support rods (65) are fixedly mounted on the material placement bottom frame (64), a threaded rod (66) is rotatably mounted on the middle part of a side of the material placement bottom frame (64) away from the support rod (65), a lifting plate (67) is movably mounted on the top of the support rod (65), the threaded rod (66) is threadedly mounted on one side of the lifting plate (67), a material placement base (68) is fixedly mounted on the top of the lifting plate (67), and the material placement base (68) is movably clamped in the material discharge through groove (305).

8. A graphite electrode production baking device according to claim 7, characterized in that: A worm wheel (621) is fixedly mounted on one end of the flip shaft (62) away from the material placement vertical frame (63); a worm (622) is meshedly connected to the outer side of the worm wheel (621); the worm (622) is rotatably mounted on the material placement side frame (61); a second motor (623) is fixedly mounted on one side of the material placement side frame (61) close to the worm (622); a driving end of the second motor (623) and one end of the worm (622) are fixedly mounted.

9. A graphite electrode production baking device according to claim 7, characterized in that: A crown gear (661) is fixedly mounted on the bottom end of the threaded rod (66); a third motor (662) is fixedly mounted on one side of the bottom end of the material placing base frame (64) close to the crown gear (661); a transmission gear (663) is fixedly mounted on the driving end of the third motor (662); and the transmission gear (663) is meshingly connected to the crown gear (661).

10. A roasting method using the roasting device for producing graphite electrodes according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Connect the end of the injection pipe (351) to the output port of the hot gas output system, and sequentially place the graphite electrode column (5) to be roasted in one of the corresponding placing barrels (42) through the feeding groove (301), and control the first motor (442) to drive the driving gear (441) to drive the driven gear ring (43) and the placing cross frame (41) to rotate, thereby driving multiple placing barrels (42) to rotate in the roasting outer frame (31), so that each placing barrel (42) drives the internal graphite electrode column (5) to rotate and move from the feeding groove (301) to the roasting top groove (302) and the roasting bottom groove (3021) in sequence; Step 2: Control and start the hot gas output system, and the hot gas is introduced into the combustion nozzle (35) through the injection pipe (351) for combustion, thereby automatically baking the graphite electrode column (5) between the baking top groove (302) and the baking bottom groove (3021); When the graphite electrode column (5) between the top calcination groove (302) and the bottom calcination groove (3021) is automatically calcined, the first circulation pump (383) and the second circulation pump (382) are controlled to start, and the excess heat in the barrel (42) at this position can be introduced into the connecting elbow (454) in the corresponding bottom flow guide member (46) through the first heat conduction pipe (421), and introduced into the flow guide cylinder (451) in the bottom flow guide member (46) through the flow guide groove (4521) and introduced into the fourth circulation cylinder (381) and the third circulation cylinder (37) through the hollow plate (34) and introduced into the corresponding position. In the barrel (42), the internal graphite electrode column (5) is preheated, and introduced into another placing barrel (42) through the second circulation through groove (304), the first circulation barrel (36), and the second circulation barrel (361), the internal graphite electrode column (5) is preheated, and introduced into the guide barrel (451) in the top guide member (45) through the fifth circulation barrel (38), and introduced into the connecting elbow (454) in the corresponding top guide member (45) through the guide through groove (4521) in the top guide member (45), and circulated into the placing barrel (42) between the roasting top groove (302) and the roasting bottom groove (3021) through the second heat conduction pipe (422); Step 3: After the graphite electrode column (5) is roasted, each material placement barrel (42) is continuously rotated, transferred to the position of the discharge slot (305), and placed on the material placement base (68). The third motor (662) is controlled to start driving the transmission gear (663) to drive the crown gear (661) to rotate, thereby controlling the threaded rod (66) to rotate, driving the material placement base (68) and the graphite electrode column (5) after roasting to descend. After descending to the lowest position, the second motor (623) is controlled to start driving the worm (622) to drive the worm wheel (621) and the turning shaft (62) to rotate, thereby driving the graphite electrode column (5) to turn over, so that the graphite electrode column (5) is turned over to a horizontal state, and continues to rotate, so that the graphite electrode column (5) is in an inclined state, so that the graphite electrode column (5) can slide down for automatic unloading.

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