A muffle furnace with an in-out material system

Abstract

The application discloses a kind of muffle's in-out material system, including main frame, in-out material subsystem, stirring subsystem and material removal subsystem, stirring subsystem includes being set on the feeding bin of main frame, for stirring anode mud stirring device, for adjusting the lifting device of baking tray receiving height, material removal subsystem includes being set below the turnover frame of main frame, is rotatably installed on the turnover platform of turnover frame, for driving the turnover drive assembly of turnover platform overturn and for the discharge hopper of unloading, turnover platform is equipped with for limiting the limiting component of baking tray and turnover platform separation, for the centering component of auxiliary positioning baking tray position and for the rapping component of rapping baking tray;By the structural arrangement of the application, the automatic in-out material of muffle can be realized, unnecessary human intervention is not needed, effectively reduce the labor intensity of worker, while effectively improve the production efficiency of product, reduce unnecessary loss of anode mud in production process.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of non-ferrous metallurgical anode slime treatment system, in particular to an inlet and outlet system of a muffle furnace. BACKGROUND

[0002] Copper (lead) anode slime is a muddy substance attached to the surface of the anode substrate or precipitated in the bottom of the electrolytic cell or suspended in the electrolyte during electrolytic refining. Anode slime treatment can comprehensively recover gold, silver and other precious metals and other valuable metals. The treatment of copper (lead) anode slime generally has three kinds of fire treatment, wet treatment and wet-fire combined treatment. In the fire treatment process, the anode mud slurry is subjected to roasting and selenium evaporation treatment to obtain selenium evaporation residue and selenium evaporation flue gas. Generally, the equipment commonly used for roasting and selenium evaporation treatment is a rotary kiln and a muffle furnace.

[0003] Among them, the roasting process using a rotary kiln has realized automatic feeding and automatic discharging, but due to the presence of concentrated sulfuric acid in the kiln, it is easy to cause serious corrosion of the equipment. The rotary kiln is a rotary movable equipment, and during operation, due to long-term high-temperature baking outside, wear and sealing problems of the equipment may occur, resulting in high maintenance and high failure rate, and short service life.

[0004] The muffle furnace is a static furnace equipment made of refractory bricks, which has low maintenance and stable and reliable equipment. However, before the anode slime is sent into the inner shell of the muffle furnace for roasting, the workers need to manually load the stirred anode slime into the roasting pan first, and then two workers lift the full roasting pan (about 35 kg) onto the trolley for stacking and placing. After roasting is completed, the trolley is first pulled out of the inner shell of the muffle furnace for cooling, and then two workers lift the roasting pan and manually turn it over by 180° on the discharge hopper, and another worker swings a large hammer and hits the bottom of the roasting pan to separate the adhered material from the roasting pan, so that the material can fall into the discharge hopper. The above muffle furnace inlet and outlet are all manual operations, and at least five workers are needed to manually complete the operation, which is labor-intensive, low in production efficiency, and the roasting pan is easily deformed due to uncontrollable manual hammering force, resulting in high scrap rate. In addition, the anode slime is scattered everywhere, the operation site is messy, and a large amount of anode slime is lost. SUMMARY

[0005] The present application is provided to overcome the deficiencies of the prior art, and provides an inlet and outlet system of a muffle furnace, which can effectively realize mechanical automation and linkage of the muffle furnace inlet and outlet, reduce labor intensity, improve production efficiency, and improve the utilization rate of anode slime.

[0006] In order to achieve the above object, the present application adopts the following technical scheme: an inlet and outlet system of a muffle furnace, comprising a main frame, an inlet and outlet subsystem for carrying a roasting tray, a stirring subsystem for stirring anode slime before feeding, and a stripping subsystem for stripping the roasting tray after discharging, the stirring subsystem comprises a feeding bin arranged on the main frame, a stirring device for stirring the anode slime, and a lifting device for adjusting the height of the roasting tray, the stripping subsystem comprises a turnover frame arranged on the main frame, a turnover table rotatably arranged on the turnover frame, a turnover driving assembly for driving the turnover table to turn over, and a discharge hopper for discharging, the turnover table is provided with a limiting assembly for limiting the separation of the roasting tray and the turnover table, a centering assembly for assisting in positioning the position of the roasting tray, and a vibrating assembly for vibrating the roasting tray.

[0007] Preferably, the stirring device comprises a stirring frame, a stirring tank rotatably arranged on the stirring frame, a rotating assembly for controlling the rotation of the stirring tank, a stirring shaft rotatably arranged in the stirring tank, a driving member for driving the stirring shaft to rotate, and a stirring paddle detachably arranged on the stirring shaft, a plurality of stirring paddles are arranged along the axial direction of the stirring shaft, and adjacent stirring paddles are staggered along the axial direction of the stirring shaft.

[0008] Preferably, the stirring tank is of an open structure, and an eccentric nozzle is fixedly connected at the open mouth, the nozzle mouth of the eccentric nozzle gradually decreases in the direction away from the stirring tank.

[0009] Preferably, the stirring paddle comprises a sleeve part detachably arranged on the stirring shaft, a paddle rod fixedly connected to the sleeve part, and a paddle blade detachably arranged on the paddle rod.

[0010] Preferably, at least two paddle blades are spaced apart along the axial direction of the paddle rod.

[0011] Preferably, the limiting assembly comprises a limiting frame arranged on both sides of the roasting tray and a linear driving member for driving the limiting frame to move, the limiting frame comprises a side limiting frame fixedly connected to the movable end of the linear driving member and a top limiting frame located above the roasting tray, and when the turnover table is not turned over, the top limiting frame and the top of the roasting tray placed on the turnover table are arranged in a gap.

[0012] Preferably, the limiting frame is composed of a round steel.

[0013] Preferably, the discharge hopper is provided with a force transmission support frame, a plurality of pressing members for pressing the roasting tray to separate from the limiting frame are fixedly connected to the force transmission support frame, and the force transmission support frame and the pressing members are composed of round steels.

[0014] Preferably, the centering assembly includes a stop positioning block fixed to one side of the tilting table, a push plate fixed to the other side of the tilting table, and a centering cylinder for driving the push plate to move.

[0015] Preferably, the feeding and discharging subsystem includes a transfer track located on the top of the main frame, a transfer trolley located on the transfer track, a moving drive component for moving the transfer trolley, a clamping assembly for clamping the roasting trays, a stacking and transferring trolley for moving the roasting trays in and out of the muffle furnace, and a transport track for guiding the movement of the stacking and transferring trolley. The clamping assembly includes a clamping frame that can be raised and lowered on the transfer trolley via a lifting telescopic component, clamping telescopic components fixed to both sides of the clamping frame, and grippers fixed to the clamping telescopic components.

[0016] The technical effects of this invention are as follows: Through the structural design of this invention, automated feeding and discharging of the muffle furnace can be achieved without excessive manual intervention, effectively reducing the labor intensity of workers, while effectively improving product production efficiency and reducing unnecessary losses of anode mud during the production process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0019] Figure 3 This is a rear view of the present invention.

[0020] Figure 4 for Figure 3 A magnified view of a section at point C.

[0021] Figure 5 This is a schematic diagram of the working state of the tilting frame of the unloading subsystem under two working angle conditions.

[0022] Figure 6 This is a front view of the present invention.

[0023] Figure 7 for Figure 6 A magnified view of a section at point B.

[0024] Figure 8 This is a schematic diagram of the stirring tank of the stirring subsystem operating at two different working angles.

[0025] Figure 9 This is a schematic diagram of the internal structure of the mixing tank.

[0026] The main technical features in the figure are labeled as follows: 10. Calcination pan; 1. Main frame; 11. Transfer track; 12. Transfer trolley; 13. Stacking and transfer trolley; 14. Transport track; 15. Clamping frame; 16. Lifting telescopic component; 17. Clamping telescopic component; 18. Gripper; 21. Feeding bin; 22. Lifting device; 231. Mixer frame; 232. Mixing tank; 2321. Eccentric nozzle; 233. Mixing shaft; 234. Mixing drive component; 235. Mixing paddle; 2351. Sleeve section; 2352. Paddle rod; 2353. Paddle blade; 2361. Driven sprocket; 2362. Rotary motor; 2363. Main... 2364. Drive chain; 31. Tilting frame; 32. Tilting table; 33. Unloading hopper; 341. Tilting drive motor; 342. Drive wheel; 343. Driven wheel; 344. Drive chain; 3511. Side limit frame; 3512. Top limit frame; 352. Linear drive component; 3521. Guide rod; 3522. Guide block; 361. Vibrator frame; 362. Vibrator cylinder; 363. Vibrator plate; 364. Vibrator block; 365. Guide column; 366. Vibrator spring; 371. Stop positioning block; 372. Push plate; 373. Centering cylinder; 381. Force transmission support frame; 382. Top pressing component. Detailed Implementation

[0027] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0028] like Figures 1-9 As shown, a feeding and discharging system for a muffle furnace includes a main frame 1, a feeding and discharging subsystem, a stirring subsystem, and a descrambling subsystem. The feeding and discharging subsystem includes a transfer track 11, a transfer trolley 12, a moving drive component, a clamping assembly, a stacking and transferring trolley 13, and a transport track 14. The transfer track 11 is fixed to the top of the main frame 1, and at least two transfer trolleys 12 are slidably connected on it, respectively for transporting the roasting pan 10 for feeding or discharging. A moving drive component is installed on the transfer trolley 12, which can be a motor, and the moving drive component can drive the transfer trolley 12 to move.

[0029] Furthermore, the clamping assembly is installed at the bottom of the transfer trolley 12 for clamping the roasting tray for transport. It includes a clamping frame 15, a clamping telescopic member 17, and a gripper 18. The clamping frame 15 is installed on the transfer trolley 12 via a lifting telescopic member 16. The lifting telescopic member 16 can be a cylinder, the main body of which is fixed to the transfer trolley 12 and the clamping frame 15 is fixed to its telescopic end. A clamping telescopic member 17 is installed on each side of the clamping frame 15. The clamping telescopic member 17 can also be a cylinder and a gripper 18 is fixed to its output end. The two grippers 18 are arranged opposite to each other.

[0030] Further, two sides of the main frame 1 are respectively provided with a carrying track 14, the stacking transfer trolley 13 is slidably connected to the carrying track 14 and can move relative to the carrying track 14; in some embodiments, the stacking transfer trolley 13 is further provided with a driving structure for automatically driving the stacking transfer trolley 13 to move, and the driving structure can be a motor which can drive the stacking transfer trolley to move along the carrying track.

[0031] Specifically, the stirring subsystem includes a feeding bin 21, a stirring device, and a lifting device 22, the feeding bin 21 is installed on the main frame 1 and located above the stirring device, and the lifting device 22 is a lifting platform which can accommodate a baking tray on the lifting surface thereof, so as to adjust the material receiving height of the baking tray to adapt to the discharging angle of the stirring device.

[0032] Further, the stirring device includes a stirring frame 231, a stirring tank 232, a rotating assembly, a stirring shaft 233, a stirring driving part 234, and a stirring paddle 235, the stirring frame 231 is fixed to the ground or a corresponding processing platform and located below the main frame 1, the stirring tank 232 is rotatably installed on the stirring frame 231 and has an open structure, and an eccentric nozzle 2321 is fixed to the opening of the stirring tank 232, the nozzle of the eccentric nozzle 2321 gradually decreases in a direction away from the stirring tank 232, so as to guide the anode mud to be discharged; the stirring shaft 233 is rotatably installed in the stirring tank 232, a plurality of stirring paddles 235 are spaced apart along the axial direction of the stirring shaft 233, and adjacent stirring paddles 235 are staggered; the stirring driving part 234 is a driving motor which is installed on an outer wall of one end of the stirring tank 232 and has an output shaft inserted into the stirring tank 232 and fixedly connected with the stirring shaft 233.

[0033] Further, the stirring paddle 235 includes a sleeve part 2351, a paddle rod 2352, and a paddle blade 2353, the sleeve part 2351 is detachably installed on the stirring shaft 233 through key cooperation, the paddle rod 2352 is fixedly connected to the sleeve part 2351, two paddle blades 2353 are spaced apart along the length direction of the paddle rod 2352, and the paddle blades 2353 are detachably installed on the paddle rod 2352 through bolts.

[0034] Further, the rotating assembly is used for adjusting the discharging angle of the stirring tank 232, and includes a driven sprocket 2361, a rotating motor 2362, a driving sprocket 2363, and a transmission chain 2364, the driven sprocket 2361 is fixedly connected to an outer wall of the stirring tank 232, the rotating motor 2362 is fixedly connected to the stirring frame 231, a driving sprocket 2363 is fixedly connected to an output shaft of the rotating motor 2362, and the transmission chain 2364 is respectively wrapped around the driven sprocket 2361 and the driving sprocket 2363.

[0035] Specifically, the material stripping subsystem comprises a turnover frame 31, a turnover table 32, a turnover driving assembly and a discharge hopper 33. The turnover frame 31 is installed below the main frame 1, and the turnover table 32 is rotatably installed on the turnover frame 31. In the initial state of the material stripping subsystem, as shown in the figure, the turnover table and the discharge hopper are respectively located on both sides of the turnover frame, and the upper baking tray can be placed on the turnover table. Figures 1-2 As shown in the figure, the turnover table can be turned over 180° relative to the turnover frame 31 under the drive of the turnover driving assembly. At this time, the turnover table is turned over above the discharge hopper. Figure 5

[0036] Specifically, the turnover driving assembly comprises a turnover driving motor 341, a driving wheel 342, a driven wheel 343 and a transmission chain 344. The turnover driving motor 341 is fixedly installed on the turnover frame 31, and the driving wheel 342 is fixedly connected to the output shaft of the turnover driving motor 341. The driven wheel 343 is fixedly connected to one side of the turnover table 32 and coaxially arranged with the turnover shaft. The transmission chain 344 is cooperatively installed with the driving wheel 342 and the driven wheel 343 to form a sprocket mechanism, so as to drive the turnover table 32 to turn over.

[0037] Further, the turnover table 32 is provided with a limiting assembly, a centering assembly and a jolting assembly. The limiting assembly is used to limit the separation of the baking tray 10 and the turnover table 32, and comprises a limiting frame and a linear driving part 352. One linear driving part 352 is installed on each side of the turnover table 32. The linear driving part 352 is a pneumatic cylinder or an electric cylinder. The limiting frame is welded by round steel and comprises a side limiting frame 3511 and a top limiting frame 3512. The side limiting frame 3511 is fixedly connected to the output end of the linear driving part 352. The top limiting frame 3512 is fixedly connected to the top of the side limiting frame 3511 and located above the baking tray. When the baking tray is placed on the turnover table 32, the limiting frame is folded under the drive of the linear driving part 352. At this time, the bottom surface of the top limiting frame 3512 is spaced apart from the mouth plane of the baking tray by a certain gap.

[0038] Further, two guide rods 3521 are fixedly connected to one side of the side limiting frame 3511 towards the turnover table 32. Two guide blocks 3522 are fixedly connected to the two sides of the turnover table 32 close to the corresponding side limiting frame 3511. The guide rod 3521 is arranged in the guide block 3522 to guide the moving direction of the limiting frame.

[0039] ​Further, the centering assembly is used for assisting in positioning the position of the correction baking tray on the turnover table 32, which comprises a stop positioning block 371, a push plate 372 and a centering cylinder 373, the stop positioning block 371 is fixedly connected to the turnover table 32 and located at one side of the limiting frame, which comprises a support part welded to the top surface of the turnover table 32 and an inclined part for supporting the side surface of the baking tray, and the support part and the inclined part are integrally bent from a plate piece; the push plate 372 is located at the other side of the limiting frame and arranged opposite to the stop positioning block 371, and the centering cylinder 373 is fixedly connected to the turnover table 32 and the push plate 372 is fixedly connected to the output shaft of the centering cylinder 373.

[0040] Further, the shaking assembly is used for shaking the turnover table 32 to separate the anode slime from the baking tray, which comprises a shaking frame 361, a shaking cylinder 362, a shaking plate 363, a shaking block 364, a guide column 365 and a shaking spring 366, the shaking frame 361 is fixedly connected to the bottom of the turnover table 32, the shaking cylinder 362 is fixedly connected to the shaking frame 361, the shaking plate 363 is fixedly connected to the output end of the shaking cylinder 362 and connected to the limiting position through the bolt and the shaking block 364, the shaking block 364 is located above the shaking plate 363 and a guide hole is formed in the shaking block 364, the guide column 365 is fixedly connected to the shaking block 364 and penetrates through the shaking plate and is inserted into the guide hole, and the shaking spring is sleeved on the guide column 365 and located between the shaking plate 363 and the shaking block 364.

[0041] Further, the mouth of the discharging hopper 33 is provided with a force transmission support frame 381, a plurality of top pressing pieces 382 are welded to the force transmission support frame 381, and the force transmission support frame 381 and the top pressing pieces 382 are both round steel pipes, and the top pressing pieces 382 can top press the baking tray to separate the baking tray from the top limiting frame 3512 when the baking tray is inverted on the force transmission support frame 381.

[0042] The specific implementation process of the present application is as follows: first, an empty baking tray is placed on the lifting table of the stirring subsystem, the height of the lifting table is adjusted, the stirring tank 232 is rotated to a suitable material receiving angle, and the stirred material is pushed into the baking tray through the rotating stirring paddle 235. After the baking tray is filled with material, the baking tray is moved to the stacking and transferring trolley 13 for feeding by the one-side moving trolley 12, and after stacking is completed, the stacking and transferring trolley 13 transfers the material to the inner liner of the muffle furnace for baking.

[0043] After baking is completed, the stacking and transferring trolley 13 transfers the material to the material removal subsystem from the other-side handling rail 14, the baking tray is moved to the turnover table 32 by the other-side moving trolley 12, at this time the turnover table 32 is located at the initial position of 0°, then the limiting frame covers the top of the baking tray under the drive of the linear drive 352, and the top limiting frame 3512 leaves a certain gap with the top side of the baking tray.

[0044] The overturning drive assembly is started again to rotate the overturning table 32 by 180°. During the overturning process, the top side of the baking tray is automatically attached to the top limiting frame 3512 due to the action of gravity. After the overturning table 32 is rotated by 180°, the top side of the baking tray is supported by the force transmission support on the discharge hopper 33, the top pressing member 382 presses the baking tray to separate from the top limiting frame 3512, so that the limiting frame is in an unforced unloading state; the vibration assembly is started again to vibrate the bottom side of the baking tray, so that the material in the baking tray is vibrated and separated to fall into the discharge hopper 33. After the baking tray is discharged, the overturning drive assembly is started again to rotate the overturning table 32 by 180° in the opposite direction, so that the overturning table 32 returns to the initial horizontal position 0°, then the push block is extended to push the baking tray to the stop positioning block 371, the centering of the baking tray is completed, then the empty baking tray is moved to the lifting table by the moving trolley 12, the above-mentioned actions are repeated, so that the mechanical automation of feeding and discharging of the muffle furnace is realized.

[0045] The above is only a specific embodiment of the present application, but the structural features of the present application are not limited thereto, the present application can be used on similar products, any changes or modifications made by those skilled in the art within the scope of the present application are covered by the patent scope of the present application.

Claims

1. A maran loading and unloading system characterized by: The device comprises a main frame (1), an in-out material subsystem for carrying the baking tray (10), a stirring subsystem for stirring the anode slime before feeding, and a stripping subsystem for stripping the baking tray (10) after discharging, the stirring subsystem comprises a feeding bin (21) arranged on the main frame (1), a stirring device for stirring the anode slime, and a lifting device (22) for adjusting the feeding height of the baking tray (10), the stripping subsystem comprises a turnover frame (31) arranged below the main frame (1), a turnover table (32) rotatably arranged on the turnover frame (31), a turnover driving assembly for driving the turnover table (32) to turn over, and a discharging hopper (33) for discharging, the turnover table (32) is provided with a limiting assembly for limiting the separation of the baking tray (10) and the turnover table (32), a centering assembly for assisting in positioning the position of the baking tray (10), and a jolting assembly for jolting the baking tray (10); The centering assembly comprises a stop positioning block (371) fixed to one side of the turnover table (32), a push plate (372) fixed to the other side of the turnover table (32), and a centering cylinder (373) for driving the push plate (372) to move; The in-out material subsystem comprises a moving track (11) arranged on the top of the main frame (1), a moving trolley (12) arranged on the moving track (11), a moving driving member for driving the moving trolley (12) to move, a clamping assembly for clamping the baking tray (10), a stacking and transferring trolley (13) for carrying the baking tray (10) to and from the muffle furnace, and a carrying track (14) for guiding the movement of the stacking and transferring trolley (13), the clamping assembly comprises a clamping frame (15) which is liftable and installable on the moving trolley (12) through a lifting and telescopic member (16), clamping telescopic members (17) fixed to both sides of the clamping frame (15), and clamping jaws (18) fixed to the clamping telescopic members (17); The limiting assembly comprises a limiting frame arranged on both sides of the baking tray (10) and a linear driving member (352) for driving the limiting frame to move, the limiting frame comprises a side limiting frame (3511) fixed to the movable end of the linear driving member (352) and a top limiting frame (3512) located above the baking tray (10), and the top limiting frame (3512) is arranged in a gap between the top of the baking tray (10) placed on the turnover table (32) before the turnover table (32) is turned over; The discharging hopper (33) is provided with a force transmission support frame (381), a plurality of top pressing members (382) for pressing the baking tray (10) away from the limiting frame are fixed to the force transmission support frame (381), and the force transmission support frame (381) and the top pressing members (382) are both composed of round steel.

2. A system for loading and unloading a muffle according to claim 1, characterized in that: The stirring device comprises a stirring frame (231), a stirring tank (232) rotatably installed on the stirring frame (231), a rotating assembly for controlling the rotation of the stirring tank (232), a stirring shaft (233) rotatably installed in the stirring tank (232), a driving member for driving the stirring shaft (233) to rotate, and stirring paddles (235) detachably installed on the stirring shaft (233), wherein a plurality of the stirring paddles (235) are arranged along the axial direction of the stirring shaft (233), and adjacent stirring paddles (235) are staggered along the axial direction of the stirring shaft (233).

3. A system for loading and unloading a muffle according to claim 2, wherein: The stirring tank (232) has an open structure, and an eccentric nozzle (2321) is fixedly connected to the open end, wherein the nozzle opening of the eccentric nozzle (2321) gradually decreases in the direction away from the stirring tank (232).

4. A system for loading and unloading a muffle according to claim 2, characterized in that: The stirring paddle (235) comprises a sleeve part (2351) detachably installed on the stirring shaft (233), a paddle rod (2352) fixedly connected to the sleeve part (2351), and a paddle blade (2353) detachably installed on the paddle rod (2352).

5. A system for loading and unloading a muffle according to claim 4, wherein: The paddle rod (2352) is axially spaced apart by at least two paddle blades (2353).

6. A system for loading and unloading a muffle according to claim 1, characterized in that: The limiting frame is composed of a round steel.

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