A roller kiln oxygen concentration detection and removal device

Abstract

The present invention provides a roller kiln oxygen concentration detection and removal device, which relates to the technical field of oxygen concentration detection, and includes: a roller kiln oxygen concentration detection and removal device, specifically including: two convex horizontal partitions are welded in the middle of the half section of the furnace cover near the tail end, the part inside the roller furnace located between the two convex horizontal partitions is the cooling section of the battery material, and a suction fan is fixed in series to the vertical part of a U-shaped circulation air duct; a row of horizontal heat exchange pipes is welded between the head ends of the two U-shaped circulation air ducts, and a rectangular heat exchange box is welded on the row of horizontal heat exchange pipes; the row of horizontal heat exchange pipes and the rectangular heat exchange box are both located above the furnace cover. When the deoxygenated fuel consumption is burned in a row of horizontal heat exchange pipes to reduce the oxygen concentration inside the cooling section, the combustion can be carried out on the outside of the cooling section, which can avoid the heat generated after combustion from greatly increasing the temperature of the cooling section, which is helpful to improve the cooling and molding quality of the battery material by the cooling section.

Description

Technical Field

[0001] The invention relates to the technical field of oxygen concentration detection, and in particular to a roller kiln oxygen concentration detection and removal device. Background Art

[0002] It is extremely important to implement atmosphere protection in the cooling section of the lithium battery material firing in the roller kiln. For example, in the production of graphite negative electrode lithium iron phosphate, a certain amount of nitrogen gas needs to be continuously injected for protection. However, when the oxygen concentration cannot be reduced for some reason while the aeration is continued, it will affect the quality of the finished product of the fired material. Therefore, a measure is needed to detect oxygen and reduce or remove oxygen.

[0003] The method of reducing or removing oxygen is usually to add and burn deoxygenated fuels such as ammonia hydrogen compounds in the cooling section, and consume oxygen by burning deoxygenated fuels such as ammonia hydrogen compounds. The deoxygenated fuels such as ammonia hydrogen compounds are burned into oxides without affecting the firing quality.

[0004] When existing detection devices detect that the oxygen concentration exceeds the standard, they usually directly burn and consume the oxygen inside the cooling section. This causes the heat generated after combustion to be directly radiated and accumulated inside the cooling section, greatly increasing the temperature of the cooling section, affecting the cooling of the battery material by the cooling section, and reducing the final cooling and molding quality of the battery material. Summary of the invention

[0005] In view of this, the present invention provides an oxygen concentration detection and removal device for a roller kiln to solve the problem that oxygen is directly burned and consumed inside the cooling section, causing the heat generated after combustion to be directly radiated and accumulated inside the cooling section, thereby affecting the final cooling and molding quality of the battery material.

[0006] The technical solution proposed by the present invention is: a roller kiln oxygen concentration detection and removal device, specifically comprising: a roller kiln, the roller kiln is used to burn battery materials, and the whole is composed of a furnace with a cross-section of a U-shaped structure and a furnace cover, wherein the furnace cover is fixedly arranged on the top of the furnace;

[0007] Two convex horizontal partitions are welded in the middle of the half section of the furnace cover near the tail end. The part inside the roller furnace located between the two convex horizontal partitions is the cooling section of the battery material. The two parts inside the roller furnace located on both sides of the cooling section are the heating and firing section and the forming section of the battery material respectively; the parts of the two vertical side walls of the furnace cover where the cooling section is located are fixedly connected with U-shaped circulation air ducts, and a suction fan is fixed in series to the vertical part of one U-shaped circulation air duct; a row of horizontal heat exchange pipes is welded between the head ends of the two U-shaped circulation air ducts, and a rectangular heat exchange box is welded on the row of horizontal heat exchange pipes; the row of horizontal heat exchange pipes and the rectangular heat exchange box are both located above the furnace cover;

[0008] A longitudinal deoxygenated fuel inlet pipe is arranged above the rectangular heat exchange box, a row of vertical filling pipes is welded to the bottom of the longitudinal deoxygenated fuel inlet pipe, and the bottom end parts of the row of vertical filling pipes are welded through the top side walls of a row of horizontal heat exchange tubes; a row of heating igniters is fixed through the top side walls of the row of horizontal heat exchange tubes; the rectangular heat exchange box is used to absorb and utilize the combustion heat of the deoxygenated fuel in the row of horizontal heat exchange tubes.

[0009] Furthermore,

[0010] The upper half of a row of the vertical filling pipes is welded through the top plate of the rectangular heat exchange box;

[0011] The head end of the longitudinal deoxygenated fuel inlet pipe is connected with a solenoid valve in the form of a threaded screw, and the solenoid valve is connected to an external deoxygenated fuel supply system.

[0012] Furthermore,

[0013] The heating igniter is in the form of an upright column as a whole, and the middle part is fixedly provided with a hexagonal knob cap and a sealing ring at intervals up and down, a sealing disk is welded at the bottom of the hexagonal knob cap, and a rubber sealing pad is pasted and fixed at the bottom of the sealing disk and the sealing ring;

[0014] A row of threaded sleeves is welded on the top side wall of a row of the horizontal heat exchange tubes near a row of vertical filling pipes, and the bottom side of the heating igniter is provided with external threads, and the bottom side of the heating igniter is screwed through and matched with the threaded sleeves;

[0015] The heating igniter is inserted and matched with the top plate of the rectangular heat exchange box. When the heating igniter is screwed and tightened with the threaded sleeve, the sealing disk and the rubber sealing gasket at the bottom of the sealing ring are respectively pressed and sealed with the top plate of the rectangular heat exchange box and the threaded sleeve.

[0016] Furthermore,

[0017] Two heat exchange medium inlet and outlet pipes are symmetrically welded on the two short side walls of the rectangular heat exchange box. The rectangular heat exchange box is connected in series to a waste heat recovery system that exchanges and absorbs heat through the circulation of heat exchange medium through the two heat exchange medium inlet and outlet pipes.

[0018] Furthermore,

[0019] An oxygen concentration sensor is fixed through a portion of a vertical side wall of the roller hearth furnace where the cooling section is located in the form of a thread;

[0020] An electric control box is fixedly mounted on a vertical side wall of the roller furnace, and a controller is arranged inside the electric control box. The input port of the controller is communicatively connected with the oxygen concentration sensor, and the output port is electrically connected with the solenoid valve and the heating igniter respectively.

[0021] Furthermore,

[0022] A row of cross-bracing furnace rollers are rotatably installed in the top opening of the furnace, a convex transverse partition is inserted between two cross-bracing furnace rollers adjacent to the convex transverse partition, and the two ends of the bottom extended part of the convex transverse partition are welded and fixed to the two vertical side walls of the furnace.

[0023] Furthermore,

[0024] It also includes: a material box, which is used to hold the battery materials to be fired, and a row of horizontal furnace rollers for transporting the material box inside the roller furnace.

[0025] Furthermore,

[0026] A rectangular conveying groove is provided through the middle part of the convex transverse partition, the length of which is greater than the length of the material box, and the material box is sequentially conveyed through two rectangular conveying grooves, the length of which is greater than the width of the material box.

[0027] Furthermore,

[0028] Two rectangular swing baffles are symmetrically mounted at both ends of the rectangular conveying trough;

[0029] The portion of the convex transverse partition plate located above the rectangular conveying groove is symmetrically provided with two transverse rectangular grooves, and two semicircular positioning rings are symmetrically welded at the positions of the two transverse rectangular grooves on the convex transverse partition plate;

[0030] The top ends of the two swing baffle shafts are respectively extended and inserted into two transverse rectangular grooves, and the top ends of the two shafts are welded with strip swing plates, and the two strip swing plates are correspondingly rotated with the two semicircular positioning rings through spring pushing;

[0031] The head ends of the two semicircular positioning rings are welded with retaining rings. In the initial state, the two strip swing plates are pressed against the two retaining rings by the springs and pushers on the two semicircular positioning rings, and the two swing baffles are positioned and maintained in a horizontally closed use state.

[0032] Furthermore,

[0033] A flip blocking plate is rotatably mounted on the top end of the convex transverse partition located on the output side of the rectangular conveying trough;

[0034] In the initial state, the flip blocking plate is suspended and closed on the output side of the rectangular conveying trough, and is in contact with the two swing baffles in the closed state;

[0035] A strip baffle is vertically welded to the portion of the convex transverse partition below the rectangular conveying trough, and a U-shaped adapting groove is provided on a long side of the strip baffle located on the outside, and the U-shaped adapting groove is plugged and matched with the top of the adjacent horizontal support furnace roller, and the strip baffle is located on the output side of the rectangular conveying trough;

[0036] When the material containing box is conveyed through the rectangular conveying trough, it abuts against two swing baffles.

[0037] The invention provides a roller kiln oxygen concentration detection and removal device, which has the following beneficial effects:

[0038] 1. A row of horizontal heat exchange tubes is placed on the upper outside of the cooling section. This allows combustion to be carried out on the outside of the cooling section when deoxygenated fuels such as ammonia hydrogen compounds are burned in the row of horizontal heat exchange tubes to reduce the oxygen concentration inside the cooling section. Compared with the existing technology in which combustion occurs directly in the cooling section, it can avoid the heat generated after combustion from being directly radiated and accumulated in the cooling section, greatly increasing the temperature of the cooling section. It helps to keep the cooling section at the original temperature that can normally cool the battery material when the oxygen concentration is reduced by combustion, thereby improving the cooling and molding quality of the battery material.

[0039] 2. The rectangular heat exchange box is used to absorb and utilize the combustion heat of deoxygenated fuels such as ammonia hydrogen compounds in a row of horizontal heat exchange tubes, and to reduce the temperature of the air after combustion and deoxygenation in a row of horizontal heat exchange tubes, so as to avoid the lack of necessary cooling measures for the air after combustion and deoxygenation. It circulates into the cooling section at a higher temperature to increase the temperature of the cooling section, which helps to ensure the external combustion and deoxygenation design implemented through a row of horizontal heat exchange tubes, and the effect of maintaining the cooling temperature of the cooling section, ensuring the low-temperature forming performance of the cooling section for battery materials. In addition, the rectangular heat exchange box can recover the combustion heat, which can reduce the energy waste caused by consuming oxygen to reduce the oxygen concentration, so that most of the energy generated by the combustion can be collected and utilized, and a certain economic benefit will be generated, which helps to reduce the cost of reducing the oxygen concentration through combustion.

[0040] 3. The two swing baffles are used together with the falling gravity of the flip plug, which can automatically drive the flip plug to flip up and down and open and close before and after the material box passes through the rectangular conveying trough. This can eliminate the need to configure additional automatic opening and closing components for the flip plug, which helps to reduce the operating cost of the flip plug.

[0041] 4. The flip baffle, two swing baffles and strip baffles are used together to implement a relatively comprehensive and thorough sealing of multiple empty slot cavities generated between the material box and the rectangular conveying trough when the material box passes through the rectangular conveying trough, thereby preventing oxygen in the heating and firing section and the molding section from flowing into the cooling section through the multiple empty slot cavities in large quantities, thereby greatly destroying the low-oxygen environment of the cooling section. This greatly improves the effect of maintaining the low-oxygen environment of the cooling section during the process of the material box passing through the rectangular conveying trough, and ensures that the cooling and molding quality of the battery material in the cooling section is excellent.

[0042] 5. The flip blocking plate can serve as a blocking and closing component for the rectangular conveying trough, and can also serve as a blocking and closing component for the excess vacant trough, having the effect of using one device for two purposes. This can save the need to configure blocking and closing components for the rectangular conveying trough and the excess vacant trough respectively, and help to further simplify the overall structure and cost of the roller furnace to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0044] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0045] In the attached picture:

[0046] Figure 1 The overall structure diagram of the first embodiment of the present invention is shown;

[0047] Figure 2 A schematic diagram showing the installation position of a convex transverse partition according to the first embodiment of the present invention is shown;

[0048] Figure 3 A schematic diagram of the inner side structure of a half-section rectangular heat exchange box according to the first embodiment of the present invention is shown;

[0049] Figure 4 The first embodiment of the present invention is shown Figure 3 The enlarged structural diagram of part A in the middle;

[0050] Figure 5 A schematic diagram of the furnace structure of the second embodiment of the present invention is shown;

[0051] Figure 6 A schematic diagram showing the installation position of a convex transverse partition according to the second embodiment of the present invention is shown;

[0052] Figure 7 A schematic diagram of the convex transverse partition structure of the second embodiment of the present invention is shown;

[0053] Figure 8 The second embodiment of the present invention is shown Figure 7 The enlarged structural diagram of part B in the middle;

[0054] Fig. 9 Shows the schematic diagram of the horizontal opening state of the flipping baffle plate in the second embodiment of the present invention;

[0055] Fig.10 Shows the schematic diagram of the disassembled state of the swinging baffle plate in the second embodiment of the present invention;

[0056] Fig.11 Shows the control flow chart of the present invention;

[0057] List of reference numerals:

[0058] 1. Roller hearth furnace; 101. Furnace chamber; 102. Furnace hood; 103. Horizontal support furnace rollers; 104. Baffle plate; 105. Convex horizontal partition; 1051. Rectangular conveying groove; 1052. Swinging baffle plate; 10521. Strip-shaped swing plate; 1054. Flipping baffle plate; 1055. Strip-shaped baffle; 10551. U-shaped fitting groove; 1056. Horizontal rectangular groove; 1057. Semi-circular positioning ring; 10571. Retaining ring;

[0059] 2. Electric control box;

[0060] 3. U-shaped circulating air duct; 301. Horizontal heat exchange pipe; 3011. Threaded sleeve;

[0061] 4. Oxygen concentration sensor;

[0062] 5. Suction fan;

[0063] 6. Rectangular heat exchange box; 601. Heat exchange medium inlet and outlet pipe;

[0064] 7. Vertical deoxidized fuel inlet pipe; 701. Upright filling pipe;

[0065] 8. Solenoid valve;

[0066] 9. Heating type igniter; 901. Hexagonal knob cap; 902. Sealing ring;

[0067] 10. Material holding box. Detailed implementation manners

[0068] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0069] Please refer to Figures 1 to 4 and Fig.11 ;

[0070] Embodiment 1: The present invention proposes a roller kiln oxygen concentration detection and removal device, comprising: a roller kiln 1, the roller kiln 1 is used to burn battery materials, and the whole is composed of a furnace 101 with a U-shaped cross-section and a furnace cover 102, wherein the furnace cover 102 is fixedly arranged on the top of the furnace 101;

[0071] Two convex transverse partitions 105 are welded in the middle of the half section of the furnace cover 102 near the tail end. The part inside the roller furnace 1 between the two convex transverse partitions 105 is the cooling section of the battery material. The two parts inside the roller furnace 1, one long and one short, located on both sides of the cooling section are the heating and firing section and the forming section of the battery material respectively; the parts of the two vertical side walls of the furnace cover 102 where the cooling section is located are fixedly connected with a U-shaped circulation air duct 3, and a suction fan 5 is fixed in series to the vertical part of one U-shaped circulation air duct 3; a row of transverse heat exchange pipes 301 is welded between the head ends of the two U-shaped circulation air ducts 3, and a rectangular heat exchange box 6 is welded and mounted on the row of transverse heat exchange pipes 301; the row of transverse heat exchange pipes 301 and the rectangular heat exchange box 6 are both located above the furnace cover 102;

[0072] A vertical deoxygenated fuel inlet pipe 7 is arranged above the rectangular heat exchange box 6, and a row of vertical filling pipes 701 are welded to the bottom of the vertical deoxygenated fuel inlet pipe 7, and the bottom end portion of the row of vertical filling pipes 701 is correspondingly welded through the top side wall of a row of horizontal heat exchange tubes 301; a row of heating igniters 9 is fixed through the top side wall of the row of horizontal heat exchange tubes 301; two baffles 104 are symmetrically welded to the upper half of the furnace cover 102 with openings at both ends; the deoxygenated fuel is a deoxygenated fuel such as ammonia hydrogen compound, and the heating igniter 9 is an electronic igniter;

[0073] Through two U-shaped circulation air ducts 3 and a row of horizontal heat exchange tubes 301, the suction fan 5 can implement suction circulation for the air in the cooling section; through a row of vertical filling pipes 701, the longitudinal deoxygenated fuel inlet pipe 7 can evenly fill the deoxygenated fuel such as ammonia hydrogen compounds into the row of horizontal heat exchange tubes 301; a row of heating igniters 9 can ignite and burn the deoxygenated fuel such as ammonia hydrogen compounds filled into the row of horizontal heat exchange tubes 301, so as to consume or remove the oxygen in the air that continuously circulates through the row of horizontal heat exchange tubes 301 in the cooling section, reduce the oxygen concentration inside the cooling section, and ensure the cooling of the battery material. The row of horizontal heat exchange pipes 301 is placed on the upper outer side of the cooling section, so that when the oxygen-removing fuel such as ammonia hydrogen compounds is burned in the row of horizontal heat exchange pipes 301 to reduce the oxygen concentration inside the cooling section, the combustion can be carried out on the outside of the cooling section. Compared with the existing technology in which the combustion directly occurs in the cooling section, it can avoid the heat generated after the combustion from being directly radiated and accumulated in the cooling section, greatly increasing the temperature of the cooling section, which helps to keep the original temperature of the cooling section capable of normally cooling the battery material when the oxygen concentration is reduced by combustion, thereby improving the cooling molding quality of the battery material;

[0074] Two heat exchange medium inlet and outlet pipes 601 are symmetrically welded on the two short side walls of the rectangular heat exchange box 6. The rectangular heat exchange box 6 is connected in series to a waste heat recovery system that exchanges and absorbs heat through the circulation of the heat exchange medium through the two heat exchange medium inlet and outlet pipes 601. The heat exchange medium circulates inside the rectangular heat exchange box 6. The rectangular heat exchange box 6 is used to absorb and utilize the combustion heat of the deoxygenated fuel such as ammonia hydrogen compound in a row of horizontal heat exchange tubes 301, and reduce the temperature of the air after combustion and deoxygenation in the row of horizontal heat exchange tubes 301, so as to avoid the lack of necessary cooling of the air after combustion and deoxygenation. Measures, with a higher temperature circulation flowing into the cooling section, increase the temperature of the cooling section, help to ensure the external combustion deoxygenation design implemented by a row of horizontal heat exchange pipes 301, the cooling temperature of the cooling section is maintained, ensure the low-temperature forming performance of the cooling section for battery materials, and through the rectangular heat exchange box 6 to recover the combustion heat, can reduce the combustion to consume oxygen to reduce the oxygen concentration, and the energy waste generated, so that most of the energy generated by the combustion can be collected and utilized, and produce certain economic benefits, which helps to reduce the cost of reducing the oxygen concentration through combustion.

[0075] Preferably,

[0076] The upper half of a row of vertical filling pipes 701 are welded through the top plate of the rectangular heat exchange box 6; the head end of the longitudinal deoxygenated fuel inlet pipe 7 is connected to the solenoid valve 8 in the form of a threaded screw, and the solenoid valve 8 is connected to the external deoxygenated fuel supply system, which supplies deoxygenated fuels such as ammonia hydrogen compounds.

[0077] Preferably,

[0078] The heating type igniter 9 is in the form of an upright column as a whole, and the middle part is fixedly provided with a hexagonal knob cap 901 and a sealing ring 902 at intervals from top to bottom. A sealing disk is welded to the bottom of the hexagonal knob cap 901, and rubber sealing pads are pasted and fixed to the bottom of the sealing disk and the sealing ring 902; a row of threaded sleeves 3011 are welded to the top side wall of a row of horizontal heat exchange tubes 301 near a row of vertical filling pipes 701, and an external thread is provided on the bottom side of the heating type igniter 9, and the bottom side of the heating type igniter 9 is penetrated and screwed together with the threaded sleeve 3011; the heating type igniter 9 is interlaced with the top plate of the rectangular heat exchange box 6, and when the heating type igniter 9 and the threaded sleeve 3011 are screwed and tightened, the sealing disk and the rubber sealing pad at the bottom of the sealing ring 902 are respectively pressed and sealed with the top plate of the rectangular heat exchange box 6 and the threaded sleeve 3011;

[0079] The heating igniter 9 is fixedly installed in the form of threaded screwing and is sealed with the rectangular heat exchange box 6 and the horizontal heat exchange tube 301 by top pressure, and can be easily disassembled for maintenance and replacement.

[0080] Preferably,

[0081] An oxygen concentration sensor 4 is fixedly screwed through a portion of a vertical side wall of the roller hearth furnace 1 where the cooling section is located; an electric control box 2 is fixedly installed on a vertical side wall of the roller hearth furnace 1, and a controller is arranged inside the electric control box 2. The input port of the controller is communicatively connected with the oxygen concentration sensor 4, and the output port of the controller is electrically connected with the solenoid valve 8, the heating igniter 9 and the suction fan 5 respectively;

[0082] The oxygen concentration sensor 4 is used to detect the oxygen concentration of the cooling section in real time, and the controller is used to control the switches of the solenoid valve 8, the heating igniter 9 and the suction fan 5. The oxygen concentration sensor 4 transmits the detected real-time oxygen concentration data to the controller in real time, and the controller compares the received oxygen concentration data with the built-in standard concentration data in real time. When the controller compares and finds that the real-time oxygen concentration of the cooling section is greater than the standard concentration data, it simultaneously triggers the start of the solenoid valve 8, the heating igniter 9 and the suction fan 5 to reduce the oxygen concentration by combustion consumption. As the combustion continues, the oxygen concentration of the cooling section will gradually decrease. When the controller compares and finds that the real-time oxygen concentration of the cooling section is less than the standard concentration data, it simultaneously triggers the closing of the solenoid valve 8 and the suction fan 5 to end the oxygen combustion consumption operation. In this way, the real-time detection of the oxygen concentration of the cooling section and the adjustment and maintenance of the low oxygen concentration in the cooling section can be realized by reciprocating.

[0083] It is worth noting that the heating igniter 9 is turned on for a period of time to ignite the deoxygenated fuel such as ammonia hydrogen compound and then automatically turns off.

[0084] Preferably,

[0085] A row of horizontal furnace rollers 103 are rotatably installed in the top opening of the furnace 101, and a convex horizontal partition 105 is inserted between two horizontal furnace rollers 103 adjacent to the convex horizontal partition 105, and the two ends of the bottom extension of the convex horizontal partition 105 are correspondingly welded and fixed to the two vertical side walls of the furnace 101;

[0086] Through the barrier effect of the convex transverse partition 105, a relatively closed cavity can be formed in the cooling section, and the relatively closed cavity can reduce the air circulation between the heating and firing section and the molding section and the cooling section, which is beneficial to maintaining the low oxygen environment of the cooling section.

[0087] Preferably,

[0088] It also includes: a material box 10 for containing battery materials to be fired, and a row of transverse furnace rollers 103 for transporting the material box 10 inside the roller furnace 1.

[0089] Preferably,

[0090] A rectangular conveying groove 1051 is formed through the middle of the convex transverse partition 105. The length of the rectangular conveying groove 1051 is greater than the length of the material box 10. The material box 10 is sequentially conveyed through two rectangular conveying grooves 1051. The length of the rectangular conveying groove 1051 is greater than the width of the material box 10.

[0091] The length of the rectangular conveying groove 1051 is greater than the width of the material box 10. The parts at both ends of the rectangular conveying groove 1051 that are greater than the width of the material box 10 form a surplus space for the material box 10 to smoothly pass through the rectangular conveying groove 1051 and the convex horizontal partition 105. The two surplus spaces can effectively improve the redundancy and success rate of the material box 10 passing through the rectangular conveying groove 1051. Compared with the existing technology of setting the rectangular conveying groove 1051 to be the same width as the material box 10, it is possible to eliminate the need to additionally set up a correction and alignment mechanism for the material box 10 and the rectangular conveying groove 1051 to ensure smooth passage of the material box 10, which helps to simplify the overall structure and cost of the roller furnace 1 to a certain extent.

[0092] It is worth noting that in order to prevent the battery materials from being shaken and scattered from the inside of the material box 10 during transportation, the material box 10 is not fully loaded with battery materials, which results in a surplus empty groove between the battery materials and the top opening of the material box 10.

[0093] On the basis of the first embodiment, the second embodiment, as Figures 5 to 10 As shown:

[0094] Two rectangular swing baffles 1052 are symmetrically mounted at both ends of the rectangular conveying trough 1051; two transverse rectangular grooves 1056 are symmetrically opened on the portion of the convex transverse partition 105 located above the rectangular conveying trough 1051, and two semicircular positioning rings 1057 are symmetrically welded at the positions of the two transverse rectangular grooves 1056 on the convex transverse partition 105; the top ends of the rotating shafts of the two swing baffles 1052 extend and are inserted into the two transverse rectangular grooves 1056, and the two semicircular positioning rings 1057 are symmetrically welded at the positions of the two transverse rectangular grooves 1056. The top end of the rotating shaft is welded with a strip swing plate 10521, and the two strip swing plates 10521 are correspondingly rotated with the two semicircular positioning rings 1057 through spring push; the head end of the two semicircular positioning rings 1057 are welded with a retaining ring 10571. In the initial state, the two strip swing plates 10521 are pressed against the two retaining rings 10571 by the springs and push on the two semicircular positioning rings 1057, and the two swing baffles 1052 are positioned and maintained in a horizontally closed use state;

[0095] When the two swing baffles 1052 are positioned and maintained in a horizontal state, they are located in the two surplus spaces and close the two surplus spaces.

[0096] Preferably,

[0097] A reversible blocking plate 1054 is rotatably mounted on the top end of the convex transverse partition 105 on the output side of the rectangular conveying trough 1051. In the initial state, the reversible blocking plate 1054 is suspended and closed on the output side of the rectangular conveying trough 1051, and is in contact with the two swing baffles 1052 in the closed state.

[0098] The two flip blocking plates 1054 can temporarily close the two rectangular conveying grooves 1051 when no material box 10 is conveyed through the two rectangular conveying grooves 1051, thereby temporarily blocking the air circulation between the heating and firing section, the molding section and the cooling section. Compared with the setting of directly opening the rectangular conveying grooves 1051 in Example 1, this can prevent the rectangular conveying grooves 1051 from being in an open state for a long time, and the air in the heating and firing section and the molding section from flowing through the two rectangular conveying grooves 1051 and the cooling section in large quantities, causing a large amount of oxygen in the heating and firing section and the molding section to flow and mix in the cooling section, affecting the maintenance of the low-oxygen environment in the cooling section, and helping to improve the cooling and molding quality of the battery material in the cooling section.

[0099] A strip baffle 1055 is vertically welded to the portion of the convex transverse partition 105 below the rectangular conveying trough 1051. A U-shaped adapting groove 10551 is provided on a long side located on the outside of the strip baffle 1055. The U-shaped adapting groove 10551 is plugged and matched with the top of the adjacent horizontal support furnace roller 103. The strip baffle 1055 is located at the output side of the rectangular conveying trough 1051.

[0100] When the material box 10 is conveyed through the rectangular conveying groove 1051, it abuts against the two swing baffles 1052, and the two swing baffles 1052 are pushed and swung toward one side of the strip baffle 1055, driving the two swing baffles 1052 to open two residual spaces, so that the material box 10 can smoothly pass through the rectangular conveying groove 1051; after the two swing baffles 1052 are opened, they are swung and placed in an inclined state and protrude from the rectangular conveying groove 1051, and after the two swing baffles 1052 are swung and opened, they can also push and overturn the flip blocking plate 1054 to flip upward and open it, and push the flip blocking plate 1054 to keep it in a horizontal open state (refer to Fig. 9 ), in addition, when the material box 10 passes through the rectangular conveying groove 1051 and is separated from the two swing baffles 1052, the compressed springs on the two semicircular positioning rings 1057 can automatically rebound to push the two bar swing plates 10521 and the two swing baffles 1052 to rotate and reset and close. When the two swing baffles 1052 are rotated and closed, they are separated from the two flip blocking plates 1054. At this time, the flip blocking plate 1054 loses the upward pushing holding force from the two swing baffles 1052 and can automatically flip down and reset and close by relying on its gravity. In this way, the two swing baffles 1052 are used together with the falling gravity of the flip blocking plate 1054, and the flip blocking plate 1054 can be automatically driven to flip up and down to open and close before and after the material box 10 passes through the rectangular conveying groove 1051. This can save the need to configure an additional automatic opening and closing component for the flip blocking plate 1054, which helps to reduce the operating and use costs of the flip blocking plate 1054;

[0101] After the two swing baffles 1052 are swung open, the head ends are inclined against the two long side walls of the material holding box 10, and the upper and lower ends are respectively against the horizontal flip blocking plate 1054 and the strip baffle 1055, so that the two surplus spaces and the upper and lower openings of the triangular vacant space formed by the two long side plates of the material holding box 10 and the two swing baffles 1052 can be indirectly and directly shielded and blocked, so as to avoid the two surplus spaces and the upper and lower openings of the triangular vacant space being open for a long time when the material holding box 10 passes through the rectangular conveying trough 1051, causing the oxygen in the heating and firing section and the molding section to flow through the two surplus spaces and the upper and lower openings of the triangular vacant space and mix into the air in the cooling section;

[0102] When the flip plugging plate 1054 is flipped up and opened and kept in a horizontal state, it fits horizontally with the top opening of the material box 10, and can cover and block the part of the residual empty slot that passes through the rectangular conveying slot 1051 when the material box 10 passes through the rectangular conveying slot 1051, so as to prevent the oxygen in the heating and firing section and the molding section from circulating through the residual empty slot and mixing into the air in the cooling section. In this way, the flip plugging plate 1054, the two swing baffles 1052 and the strip baffle 1055 are used in combination to implement a relatively comprehensive and thorough blocking of the multiple empty slot cavities generated between the material box 10 and the rectangular conveying slot 1051 when the material box 10 passes through the rectangular conveying slot 1051, so as to prevent the oxygen in the heating and firing section and the molding section from circulating through the multiple empty slot cavities and mixing into the cooling section, thereby greatly destroying the low oxygen environment of the cooling section, and greatly improving the effect of maintaining the low oxygen environment of the cooling section in the process of the material box 10 passing through the rectangular conveying slot 1051, so that the cooling and molding quality of the battery material in the cooling section is excellent;

[0103] The flip blocking plate 1054 can serve as a blocking and closing component for the rectangular conveying trough 1051, and can also serve as a blocking and closing component for the remaining empty trough, having the effect of being a device with two uses. This can save the need to configure blocking and closing components for the rectangular conveying trough 1051 and the remaining empty trough respectively, and helps to further simplify the overall structure and cost of the roller furnace 1 to a certain extent.

[0104] The working principle of this embodiment is as follows: the vertical deoxygenated fuel inlet pipe 7 is connected to the external deoxygenated fuel supply system through the electromagnetic valve 8, the rectangular heat exchange box 6 is connected in series to the waste heat recovery system for exchanging and absorbing heat through the circulation of the heat exchange medium through two heat exchange medium inlet and outlet pipes 601, the suction fan 5 can implement suction circulation of the air in the cooling section through two U-shaped circulation air ducts 3 and a row of horizontal heat exchange pipes 301, and the vertical deoxygenated fuel inlet pipe 7 can evenly discharge the deoxygenated fuel such as ammonia hydrogen compounds through a row of vertical filling pipes 701. The heat exchanger 6 is filled in a row of horizontal heat exchange tubes 301, and a row of heating igniters 9 can ignite and burn the deoxygenated fuel such as ammonia hydrogen compound filled in the row of horizontal heat exchange tubes 301, so as to consume or remove the oxygen in the air that continuously circulates through the row of horizontal heat exchange tubes 301 in the cooling section, reduce the oxygen concentration inside the cooling section, and ensure the cooling and molding quality of the battery material. A heat exchange medium circulates inside the rectangular heat exchange box 6, which is used to absorb and utilize the combustion heat of the deoxygenated fuel in the row of horizontal heat exchange tubes 301;

[0105] A row of horizontal heat exchange pipes 301 is placed on the upper outer side of the cooling section. This allows combustion of deoxygenated fuels such as ammonia compounds in the row of horizontal heat exchange pipes 301 to reduce the oxygen concentration inside the cooling section. The combustion can be carried out on the outer side of the cooling section, thereby preventing the heat generated after the combustion from being directly radiated and accumulated in the cooling section, greatly increasing the temperature of the cooling section and affecting the cooling and molding quality of the battery material.

[0106] The oxygen concentration sensor 4 is used to detect the oxygen concentration of the cooling section in real time, and the controller is used to control the switches of the solenoid valve 8, the heating igniter 9 and the suction fan 5. The oxygen concentration sensor 4 transmits the detected real-time oxygen concentration data to the controller in real time, and the controller compares the received oxygen concentration data with the built-in standard concentration data in real time. When the controller compares and finds that the real-time oxygen concentration of the cooling section is greater than the standard concentration data, it simultaneously triggers the start of the solenoid valve 8, the heating igniter 9 and the suction fan 5 to reduce the oxygen concentration by combustion consumption. As the combustion continues, the oxygen concentration of the cooling section will gradually decrease. When the controller compares and finds that the real-time oxygen concentration of the cooling section is less than the standard concentration data, it simultaneously triggers the closing of the solenoid valve 8 and the suction fan 5 to end the oxygen combustion consumption operation. In this way, the real-time detection of the oxygen concentration of the cooling section and the adjustment and maintenance of the low oxygen concentration in the cooling section can be realized by reciprocating.

[0107] It is worth noting that the heating igniter 9 is turned on for a period of time to ignite the deoxygenated fuel such as ammonia hydrogen compound and then automatically turns off.

[0108] In this article, there are a few points to note:

[0109] 1. The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention, and other structures may refer to the usual designs.

[0110] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0111] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A roller kiln oxygen concentration detection and removal device, comprising: A roller hearth furnace (1), the roller hearth furnace (1) being used for firing battery materials, and being composed as a whole of a furnace chamber (101) having a U-shaped cross-section and a furnace cover (102), wherein the furnace cover (102) is fixedly arranged at the top of the furnace chamber (101); The invention is characterized in that two convex transverse partitions (105) are welded in the middle of the half section of the furnace cover (102) near the tail end, the part inside the roller hearth furnace (1) located between the two convex transverse partitions (105) is the cooling section of the battery material, and the two parts inside the roller hearth furnace (1) located on both sides of the cooling section are the heating and firing section and the forming section of the battery material respectively; the parts of the cooling section on the two vertical side walls of the furnace cover (102) are fixedly connected with a U-shaped circulation air duct (3), and a suction fan (5) is fixed in series to the vertical part of one U-shaped circulation air duct (3); a row of transverse heat exchange pipes (301) is welded between the head ends of the two U-shaped circulation air ducts (3), and a rectangular heat exchange box (6) is welded and sheathed on the row of transverse heat exchange pipes (301); the row of transverse heat exchange pipes (301) and the rectangular heat exchange box (6) are both located above the furnace cover (102); A vertical deoxygenated fuel inlet pipe (7) is arranged above the rectangular heat exchange box (6); a row of vertical filling pipes (701) is welded to the bottom of the vertical deoxygenated fuel inlet pipe (7); the bottom end portion of the row of vertical filling pipes (701) is welded to the top side wall of a row of horizontal heat exchange tubes (301); a row of heating igniters (9) is fixedly penetrated on the top side wall of the row of horizontal heat exchange tubes (301); the rectangular heat exchange box (6) is used to absorb and utilize the combustion heat of the deoxygenated fuel in the row of horizontal heat exchange tubes (301); An oxygen concentration sensor (4) is fixedly screwed through a portion of a vertical side wall of the roller hearth furnace (1) where the cooling section is located; An electric control box (2) is fixedly mounted on a vertical side wall of the roller hearth furnace (1), and a controller is arranged inside the electric control box (2). The input port of the controller is communicatively connected to the oxygen concentration sensor (4), and the output port of the controller is electrically connected to the solenoid valve (8) and the heating igniter (9) respectively; A rectangular conveying groove (1051) is formed through the middle portion of the convex transverse partition (105), the length of the rectangular conveying groove (1051) is greater than the length of the material holding box (10), and the material holding box (10) is sequentially conveyed through the two rectangular conveying grooves (1051), the length of the rectangular conveying groove (1051) is greater than the width of the material holding box (10); Two rectangular swing baffles (1052) are symmetrically mounted on the two end portions of the rectangular conveying trough (1051); two transverse rectangular grooves (1056) are symmetrically opened on the portion of the convex transverse partition (105) located above the rectangular conveying trough (1051); two semicircular positioning rings (1057) are symmetrically welded to the convex transverse partition (105) at the positions where the two transverse rectangular grooves (1056) are located; the top ends of the two swing baffles (1052) are respectively extended and inserted into the two transverse rectangular grooves (1056), and the top ends of the two rotating shafts are both welded with strip swing plates (10521), and the two strip swing plates (10521) are correspondingly rotated with the two semicircular positioning rings (1057) through spring pushing; and the head ends of the two semicircular positioning rings (1057) are both welded with retaining rings (10571).

2. The roller kiln oxygen concentration detection and removal device according to claim 1 is characterized in that: The upper half of a row of vertical filling pipes (701) is welded through the top plate of the rectangular heat exchange box (6); The head end of the longitudinally arranged deoxygenated fuel inlet pipe (7) is connected to a solenoid valve (8) in the form of a threaded connection, and the solenoid valve (8) is connected to an external deoxygenated fuel supply system.

3. The roller kiln oxygen concentration detection and removal device according to claim 1 is characterized in that: The heating igniter (9) is in the form of an upright column as a whole, and a hexagonal knob cap (901) and a sealing ring (902) are fixedly mounted in the middle portion at intervals up and down, a sealing disk is welded to the bottom of the hexagonal knob cap (901), and a rubber sealing pad is adhered and fixed to the bottom of the sealing disk and the sealing ring (902); A row of threaded sleeves (3011) is welded on the top side wall of a row of the horizontal heat exchange tubes (301) near a row of vertical filling pipes (701), and an external thread is provided on the bottom side of the heating igniter (9), and the bottom side of the heating igniter (9) is penetrated and screwed into the threaded sleeves (3011); The heating igniter (9) is interlaced with the top plate of the rectangular heat exchange box (6); when the heating igniter (9) and the threaded sleeve (3011) are screwed and tightened, the sealing disk and the rubber sealing gasket at the bottom of the sealing ring (902) are respectively pressed and sealed against the top plate of the rectangular heat exchange box (6) and the threaded sleeve (3011).

4. The roller kiln oxygen concentration detection and removal device according to claim 1 is characterized in that: Two heat exchange medium inlet and outlet pipes (601) are symmetrically welded on the two short side walls of the rectangular heat exchange box (6). The rectangular heat exchange box (6) is connected in series to a waste heat recovery system that exchanges and absorbs heat through the circulation of the heat exchange medium via the two heat exchange medium inlet and outlet pipes (601).

5. The roller kiln oxygen concentration detection and removal device according to claim 1 is characterized in that: A row of transverse furnace rollers (103) are rotatably mounted in the top opening of the furnace (101); a convex transverse partition (105) is inserted between two transverse furnace rollers (103) adjacent to the convex transverse partition (105); and two ends of the bottom extended portion of the convex transverse partition (105) are correspondingly welded and fixed to two vertical side walls of the furnace (101).

6. The roller kiln oxygen concentration detection and removal device according to claim 1 is characterized in that: It also includes: a material box (10), the material box (10) is used to hold battery materials to be fired, and a row of transverse furnace rollers (103) is used to transport the material box (10) inside the roller furnace (1).

7. The roller kiln oxygen concentration detection and removal device according to claim 1 is characterized in that: In the initial state, the two strip swing plates (10521) are pressed against the two retaining rings (10571) by the springs and the pushers on the two semicircular positioning rings (1057), and the two swing baffles (1052) are positioned and maintained in a horizontally closed use state.

8. The roller kiln oxygen concentration detection and removal device according to claim 7 is characterized in that: A flip blocking plate (1054) is rotatably mounted on the top end of the convex transverse partition (105) on the output side of the rectangular conveying trough (1051); In the initial state, the flip blocking plate (1054) is suspended and closed on the output side of the rectangular conveying trough (1051), and is in abutment with two swing baffles (1052) in a closed state; A strip baffle (1055) is vertically welded to the portion of the convex transverse partition (105) below the rectangular conveying trough (1051); a long side of the strip baffle (1055) located on the outside is provided with a U-shaped adapting groove (10551); the U-shaped adapting groove (10551) is plugged into the top of the adjacent transverse furnace roller (103); and the strip baffle (1055) is located at the output side of the rectangular conveying trough (1051); When the material containing box (10) is conveyed through the rectangular conveying trough (1051), it comes into contact with two swing baffles (1052).

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