A kind of roll furnace bowl turning device for lithium iron phosphate production

Abstract

The application provides a roller furnace saggar device for lithium iron phosphate production, which comprises a cover shell and a conveying mechanism connected to the opening at both ends of the cover shell, a lower hopper is arranged at the bottom, a rotating frame capable of circumferential tilting is arranged at a position between the conveying mechanisms in the cover shell, a bracket for supporting the saggar is arranged on the rotating frame and aligned with the conveying mechanism, a cover plate with a spiral telescopic guide structure is fixedly arranged above the bracket, the spiral telescopic cylinder is used for guiding the saggar during tilting, the spiral channel is used for slowing down the discharging speed and restraining the powder, preventing dust flying, the height difference between the discharging position and the lower hopper is reduced due to the height change caused by the spiral channel, the acting force during discharging is reduced, dust prevention is achieved, the telescopic cylinder is retracted to form a closed opening, powder leakage is prevented during tilting, and the device has a good development prospect.

Description

TECHNICAL FIELD

[0001] The application relates to the field of lithium iron phosphate production, in particular to a roller furnace pot dumping device for lithium iron phosphate production. BACKGROUND

[0002] At present, after lithium battery materials are sintered in a roller kiln, the materials in the sintering pot need to be sequentially dumped into a hopper at a certain speed, and then flow into a crusher for damage conveying or directly into a storage container for powder conveying. Therefore, a pot dumping device is needed, which is mainly used for dumping the sintered powder in the powder industry and ensures no dust leakage and no material waste during execution. At present, there is no technology in the industry that can achieve this effect well.

[0003] In order to solve the problem of dust leakage during dumping, through retrieval, there is a kind of anti-leakage powder pot dumping machine with the application number CN202020792512.7, which is provided with a sealing cover around the rack, and a sealing cavity is formed between the sealing cover and the receiving part to isolate the internal dust from leaking out, thereby preventing dust leakage in the cavity during the dumping process. However, it only solves the sealing problem of the pot body during the side tilting and turning process, and the dust diffusion caused by the height difference and air circulation during the dumping process of the contents in the pot body has not been solved, and there is still a problem of dust leakage, which needs to rely on an additional dust removal mechanism to handle the dust, thereby increasing the cost and processing difficulty.

[0004] Therefore, a new type of pot dumping device is needed to solve the above problems. SUMMARY

[0005] The purpose of the application is to provide a roller furnace pot dumping device for lithium iron phosphate production.

[0006] To achieve the above purpose, the application provides the following technical scheme:

[0007] A roller furnace pot dumping device for lithium iron phosphate production, comprising a cover shell and a conveying mechanism connected to the opening at both ends of the cover shell, a lower hopper is arranged at the bottom, a rotating frame capable of circumferential tilting is arranged at the position between the conveying mechanisms in the cover shell, a bracket capable of supporting the sintering pot is arranged on the rotating frame and aligned with the conveying mechanism, and a cover plate with a spiral telescopic guide structure is fixedly arranged above the bracket.

[0008] As a further scheme of the application: the cover plate comprises a rubber frame, a guide groove and a telescopic cylinder, the rubber frame is fixedly arranged above the bracket through a support structure, and is a rectangular rubber structure corresponding to the sintering pot, a conical guide groove is connected to the center of the rectangular structure, the telescopic cylinder with a spiral structure is arranged in the center of the guide groove, the telescopic cylinder telescopes in the direction perpendicular to the plane of the rubber frame, and when it is extended, it forms a spiral channel, and when it is retracted, it is folded into a circular plane.

[0009] As a further scheme of the present application: the telescopic cylinder comprises a spiral cylinder, a slide rail and a slide block, the spiral cylinder is a flexible spiral channel structure, a slide rail is vertically arranged in the middle, one end of the spiral cylinder is fixedly connected with a corresponding section of the slide rail, and the other end is fixed on the slide block which is slidingly connected on the slide rail and driven to expand or contract along the slide rail.

[0010] As a further scheme of the present application: the slide block is slidingly driven along the slide rail by a motor or an electromagnetic drive.

[0011] As a further scheme of the present application: the rotating frame is composed of a plurality of wheel frames and connecting shafts, the wheel frames are arranged along the conveying direction of the conveying mechanism, and the wheel frames are welded to form a cylindrical structure through the connecting shafts; the bracket is welded to the bottom between the wheel frames; the shell is fixed with a driving mechanism on one side, which comprises a transmission shaft and a driving motor; the output end of the driving motor is connected with the two wheel frames through the transmission shaft to drive the rotating frame to rotate circumferentially.

[0012] As a further scheme of the present application: the bracket comprises a structural rod and a self-driven shaft, the structural rod is welded between the wheel frames of the rotating frame in parallel with the conveying mechanism, and the self-driven shaft with an internal motor is arranged in parallel between the structural rods.

[0013] As a further scheme of the present application: one side of the rotating frame is provided with an arc-shaped pressing rail, the pressing rail is fixed on the shell structure, the distance between the pressing rail and the central axis of the rotating frame in the overturning direction of the rotating frame gradually decreases, and a plurality of rollers are arranged on the bottom surface of the sagger corresponding to the pressing rail.

[0014] As a further scheme of the present application: the pressing rail is composed of upper and lower rail structures of a force rail and a limiting rail, the force rail is a downward eccentric circular arc rail opposite to the wheel frame of the rotating frame, and the upper end of the force rail is connected with the limiting rail which is arranged concentrically with the wheel frame of the rotating frame and has a smaller diameter than the wheel frame of the rotating frame.

[0015] As a further scheme of the present application: a corresponding notch is arranged on the bracket corresponding to the pressing rail.

[0016] As a further scheme of the present application: a lateral stop protruding horizontally downward is arranged on the side of the lower surface of the rubber frame opposite to the overturning direction of the rotating frame. Advantages

[0017] 1. The present application is provided with a telescopic cylinder with a spiral structure in the center of the cover plate, which expands or contracts along the direction perpendicular to the plane of the rubber frame, and is a spiral channel when expanded and a circular plane when contracted. The telescopic spiral cylinder is used for guiding the material during pouring, the spiral channel slows down the speed of discharging, restrains the powder, prevents dust, and reduces the height difference between the discharging position and the discharging hopper, thereby reducing the speed of powder falling and preventing dust. The contraction of the telescopic cylinder also forms a closed opening to prevent the powder from leaking out during the overturning process.

[0018] 2. The side of the rotating frame is provided with an arc-shaped pressing rail, the distance between the pressing rail and the center axis of the rotating frame gradually decreases along the overturning direction of the rotating frame, the bottom surface of the sagger is provided with a group of rollers corresponding to the pressing rail, the pressing rail is composed of two rail structures of upper and lower force rails and limiting rails, the pressing rail is a downward eccentric circular arc track opposite to the wheel frame of the rotating frame, the upper end is connected with a limiting rail with a diameter smaller than the wheel frame of the rotating frame and arranged concentrically with the wheel frame of the rotating frame, through the setting of the pressing rail, the bottom rollers of the sagger gradually contact the pressing rail during the rotation of the sagger with the rotating frame, the sagger and the cover plate structure are driven to realize close contact, the sealing of the sagger is realized, the use of additional power components is reduced, and the failure rate is reduced, and the setting of the two rail tracks respectively realizes the purposes of driving the sagger and the cover plate to adhere and keeping the relative position of the sagger and the cover plate, and the sealing effect.

[0019] 3. The lower surface of the dry plate glue frame is provided with a transversely downward protruding side stop on the side opposite to the tilting direction of the rotating frame, through the setting of the side stop, the sagger is limited from the side when the rotating frame rotates initially, that is, the cover plate does not fix the sagger, the sagger is prevented from falling, and the setting of the pressing rail is matched. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0021] Figure 2 It is a schematic diagram of the structure inside the cover of the present application.

[0022] Figure 3 It is a schematic diagram of the structure of the rotating frame of the present application.

[0023] Figure 4 It is a schematic diagram of the structure of the bracket of the present application.

[0024] Figure 5 It is a schematic diagram of the structure of the pressing rail of the present application.

[0025] Figure 6 It is a schematic diagram of the structure of the sagger of the present application.

[0026] Figure 7 It is a schematic diagram of the structure of the cover plate of the present application.

[0027] Figure 8 It is a schematic diagram of the structure of the telescopic cylinder of the present application.

[0028] Figures 1-8Middle: 1-conveying mechanism, 2-housing, 3-rotary frame, 301-wheel frame, 302-connecting shaft, 4-driving mechanism, 401-transmission shaft, 402-driving motor, 5-carrier, 501-structural rod, 502-self-driving shaft, 6-cover plate, 601-rubber frame, 602-side stop, 603-guide groove, 604-telescopic cylinder, 6041-spiral cylinder, 6042-slideway, 6043-slideway block, 7-pressing rail, 701-force rail, 702-limiting rail, 8-discharge hopper, 9-pot, 901-roller. DETAILED DESCRIPTION

[0029] The specific technical solutions of the present application will be described below in conjunction with the drawings in the specification of the present application. Figures 1-8 , a clear and complete description of the specific technical solutions of the present application is provided;

[0030] Please refer to Figures 1-8 , Figure 1 for the overall structure schematic diagram of the embodiment of the present application; Figure 2 for the schematic diagram of the structure inside the housing of the present application; Figure 3 for the schematic diagram of the structure of the rotary frame of the present application; Figure 4 for the schematic diagram of the structure of the carrier of the present application; 5 for the schematic diagram of the structure of the pressing rail of the present application; Figure 6 for the schematic diagram of the structure of the pot of the present application; Figure 7 for the schematic diagram of the structure of the cover plate of the present application; Figure 8 for the schematic diagram of the structure of the telescopic cylinder of the present application.

[0031] The roller furnace pot dumping device for lithium iron phosphate production provided by the embodiment comprises a conveying mechanism 1 connected to the openings at both ends of a housing 2, a discharge hopper 8 arranged at the bottom, a rotary frame 3 arranged to roll at a position between the conveying mechanisms 1 in the housing 2 and capable of circumferential tilting, a carrier 5 arranged on the rotary frame 3 to support a pot 9 aligned with the conveying mechanism 1, and a cover plate 6 with a spiral telescopic guide structure fixedly arranged above the carrier 5.

[0032] The cover plate 6 comprises a rubber frame 601, a guide groove 603, and a telescopic cylinder 604. The rubber frame 601 is fixed above the carrier 5 by a support structure and is a rectangular rubber structure corresponding to the pot 9. A conical guide groove 603 is connected to the center of the rectangular structure. The telescopic cylinder 604 with a spiral structure is arranged in the center of the guide groove 603 and can be telescoped in a direction perpendicular to the plane of the rubber frame 601. When extended, it is a spiral channel, and when retracted, it is folded into a circular plane.

[0033] The material guiding during pouring is realized by the telescopic spiral telescopic cylinder 604, the spiral channel slows down the speed of discharging, and also restrains the powder to prevent dust. The height change caused by the spiral channel reduces the height difference between the discharging position and the discharging hopper 8, reduces the speed of the powder falling, plays a dustproof role, and through the contraction of the telescopic cylinder 604, a closed port can also be formed to prevent the leakage of the powder during the tilting process. The guide groove 603 plays a role of guiding the powder to the telescopic cylinder 604.

[0034] Specifically, the telescopic cylinder 604 includes a spiral cylinder 6041, a sliding rail 6042, and a sliding block 6043. The spiral cylinder 6041 is a flexible spiral channel structure, a sliding rail 6042 is vertically arranged in the middle, one end of the spiral cylinder 6041 is fixedly connected with the corresponding end of the sliding rail 6042, and the other end is fixed on the sliding block 6043 which is slidingly connected on the sliding rail 6042. The sliding block 6043 drives the telescopic cylinder 604 to expand or contract along the sliding rail 6042.

[0035] Further, the sliding block 6043 is driven to slide along the sliding rail 6042 by a motor or an electromagnetic drive. By driving and controlling the sliding block 6043, the control accuracy of the expansion and contraction of the telescopic cylinder 604 is improved, so as to prevent the telescopic cylinder 604 from being opened too early and causing leakage or being contracted too late and being damaged by colliding with other components during rotation.

[0036] The rotating frame 3 is composed of a wheel frame 301 and a connecting shaft 302. The wheel frame 301 is arranged along the conveying direction of the conveying mechanism 1 and is welded to form a cylindrical structure through the connecting shaft 302. The bracket 5 is welded at the bottom between the wheel frames 301. One side of the shell 2 is fixed with a driving mechanism 4, which includes a transmission shaft 401 and a driving motor 402. The output end of the driving motor 402 is connected with the two wheel frames 301 through the transmission shaft 401, so as to drive the rotating frame 3 to rotate circumferentially.

[0037] Specifically, the bracket 5 includes a structural rod 501 and a self-driven shaft 502. The structural rod 501 is welded between the wheel frames 301 of the rotating frame 3 along a position parallel to the conveying mechanism 1. The self-driven shaft 502 with an internal motor is arranged between the structural rods 501 in parallel. The rotation of the self-driven shaft 502 realizes the control of the position of the saggar 9 in the rotating frame 3.

[0038] The rotating frame 3 is composed of a wheel frame 301 and a connecting shaft 302. The wheel frame 301 is arranged along the conveying direction of the conveying mechanism 1 and is welded to form a cylindrical structure through the connecting shaft 302. The bracket 5 is welded at the bottom between the wheel frames 301. One side of the shell 2 is fixed with a driving mechanism 4, which includes a transmission shaft 401 and a driving motor 402. The output end of the driving motor 402 is connected with the two wheel frames 301 through the transmission shaft 401, so as to drive the rotating frame 3 to rotate circumferentially.

[0039] Through the setting of the pressing rail 7, the bottom roller 901 of the sagger 9 gradually contacts the pressing rail 7 in the process of rotating with the rotating frame 3, and the sagger 9 is driven to tightly contact the cover plate 6 structure, so that the sagger 9 is sealed, the use of an additional power component is reduced, and the failure rate is reduced.

[0040] Specifically, the pressing rail 7 is composed of two upper and lower rail structures of a force rail 701 and a limiting rail 702, the force rail 701 is a circular arc track eccentric downward relative to the wheel frame 301 of the rotating frame 3, and the upper end is connected with the limiting rail 702 which is concentrically arranged with the wheel frame 301 of the rotating frame 3 and has a smaller diameter than the wheel frame 301 of the rotating frame 3.

[0041] Through the setting of the two rail tracks, the purpose of driving the sagger 9 to adhere to the cover plate 6 and keeping the relative position of the sagger 9 and the cover plate 6 is achieved, and the sealing effect is maintained.

[0042] Specifically, the corresponding position of the bracket 5 corresponding to the pressing rail 7 is provided with a corresponding gap, so that the bracket 5 does not interfere with the pressing rail 7 when rotating with the rotating frame 3, and the pressure effect of the pressing rail 7 on the sagger 9 is ensured.

[0043] Specifically, the lower surface of the rubber frame 601 opposite to the tilting direction of the rotating frame 3 is provided with a lateral stop 602 protruding downward, which limits the sagger 9 from the side at the initial stage of rotation of the rotating frame 3, i.e. when the cover plate 6 does not fix the sagger 9, to prevent the sagger 9 from falling off.

[0044] In the implementation of the technical solutions described in the embodiment, the sagger 9 is sent into the rotating frame 3 in the housing 2 through the action of the conveying mechanism 1, is supported by the bottom bracket 5 and is positionally adjusted through the rotation of the self-driving shaft 502, so that the sagger 9 and the upper cover plate 6 are vertically overlapped and aligned, then the driving motor 402 is started to drive the rotating frame 3 to rotate as a whole, the sagger 9 gradually contacts the fixed pressing rail 7 on one side through the bottom roller 901, is pressed by the pressing rail 7, and gradually adheres to the cover plate 6 to close the sagger 9, when the sagger 9 is inverted by 180°, the sliding block 6043 of the central telescopic cylinder 604 of the cover plate 6 moves downward along the slide rail 6042, so that the telescopic cylinder 604 is expanded to form a spiral channel, the powder falls down along the telescopic cylinder 604 under the action of gravity, falls into the discharge hopper 8 below the housing 2 at a slow speed, and the telescopic cylinder 604 and the rotating frame 3 are reset in turn, under the action of the self-transmission shaft 503, the idle sagger 9 is sent out from the other conveying mechanism 1.

Claims

1. A pot reversing device for a roller hearth furnace for lithium iron phosphate production, characterized by, Include: Cover (2) for turning over the installation and protection of the sagger (9) parts; Conveying mechanism (1) is arranged at both ends of the cover (2) opening, sagger (9) transportation; The hopper (8) is arranged at the bottom of the cover (2), which can collect and guide the sagger (9) inside the pouring of the firing material; Rotary frame (3) is arranged between the conveying mechanism (1) in the cover (2), which can be rotated in the circumferential direction, driving the sagger (9) to rotate and pour the internal firing material; The bracket (5) is arranged on the rotary frame (3) and aligned with the conveying mechanism (1) to support the sagger (9). The bracket (5) is fixed above the bracket (5) and provided with a cover plate (6) with a spiral telescopic guide structure, which is used for fixing and closing the sagger (9) to prevent dust leakage; The cover plate (6) includes a rubber frame (601), a guide groove (603) and a telescopic cylinder (604), The rubber frame (601) is fixed on the bracket (5) by a support structure, which is a rectangular rubber structure corresponding to the sagger (9) and closes the edge of the sagger (9); The guide groove (603) is connected with the tapered guide groove (603) in the center of the rectangular structure of the rubber frame (601), which guides the flow of the material during pouring; The telescopic cylinder (604) is provided with a spiral structure in the center of the guide groove (603). The telescopic cylinder (604) is telescopic along the direction perpendicular to the plane of the rubber frame (601). When it is stretched, it is a spiral channel, and when it is contracted, it is folded into a circular plane.

2. The roll furnace bowl tipping device for lithium iron phosphate production according to claim 1, characterized in that: The telescopic cylinder (604) includes: Spiral cylinder (6041), flexible spiral channel structure; The slide rail (6042) is vertically arranged in the middle of the spiral cylinder (6041). One end of the spiral cylinder (6041) is fixedly connected with the corresponding section of the slide rail (6042), and the other end is fixedly connected with the slide block (6043) on the slide rail (6042). The slide block (6043) drives the telescopic along the slide rail (6042).

3. The roll furnace bowl tipping device for lithium iron phosphate production according to claim 2, characterized in that: The slide block (6043) is provided with a driving motor to control the sliding of the slide block (6043) along the slide rail (6042).

4. The roll furnace bowl tipping device for lithium iron phosphate production according to claim 1, characterized in that: The rotary frame (3) is composed of a wheel frame (301) and a connecting shaft (302). The wheel frame (301) is a group, which is arranged along the conveying direction of the conveying mechanism (1). The connecting shaft (302) is welded to form a cylindrical structure. The bracket (5) is welded at the bottom between the wheel frames (301). One side of the cover (2) is fixed with a driving mechanism (4), which includes a transmission shaft (401) and a driving motor (402). The output end of the driving motor (402) is connected with the two side wheel frames (301) through the transmission shaft (401), which drives the rotary frame (3) to rotate in the circumferential direction.

5. The roll furnace bowl tipping device for lithium iron phosphate production according to claim 4, characterized in that: The bracket (5) includes: Structure rod (501) and self-driven shaft (502), structure rod (501) is welded between the wheel frames (301) of the rotary frame (3) along the position parallel to the conveying mechanism (1), and the self-driven shaft (502) is arranged between the structure rods (501) and provided with a built-in motor.

6. The roll furnace bowl tipping device for lithium iron phosphate production according to claim 1, characterized in that: One side of the rotating frame (3) is provided with an arc-shaped pressing rail (7), the pressing rail (7) is fixed on the shell (2) structure, the distance between the pressing rail (7) and the central axis of the rotating frame (3) along the overturning direction of the rotating frame (3) gradually decreases, and the bottom surface of the sagger (9) is provided with a group of rollers (901) at the corresponding position of the pressing rail (7).

7. The roll furnace bowl tipping device for lithium iron phosphate production according to claim 6, characterized in that: The pressing rail (7) comprises: The force rail (701) and the limiting rail (702) are composed of two upper and lower rail structures, the force rail (701) is a downward eccentric circular arc track opposite to the wheel frame (301) of the rotating frame (3), and the upper end is connected with the limiting rail (702) which is smaller in diameter than the wheel frame (301) of the rotating frame (3) and is coaxially arranged with the wheel frame (301) of the rotating frame (3).

8. The roll furnace bowl tipping device for lithium iron phosphate production according to claim 6, characterized in that: The corresponding position of the bracket (5) corresponding to the pressing rail (7) is provided with a corresponding gap.

9. The roll furnace bowl tipping device for lithium iron phosphate production according to claim 6, characterized in that: The lower surface of the rubber frame (601) is provided with a lateral stop (602) protruding downward in the transverse direction on the side opposite to the tilting direction of the rotating frame (3).

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