CN217468489U - Lithium battery negative electrode material stoving case - Google Patents

Abstract

The utility model discloses a lithium cell negative electrode material stoving case, include: the top of the drying device body is fixedly connected with an exhaust pipe, one end of the exhaust pipe, far away from the drying device body, is fixedly connected with the top of the preheating box, the outer wall of the drying device body is fixedly connected with a connecting ring, a temperature sensor is detachably connected onto the connecting ring, and the temperature sensor is in signal connection with an external PLC (programmable logic controller); outside hot-blast will enter into drying device body through the air-supply line inside, connect the discharge through the arc on first siphunculus and the second siphunculus, can be at the inside air current that forms the equidirectional of drying device body, bracing piece and stirring vane direction of rotation are unanimous with the air current direction, can stir the inside raw materials of drying device body, start outside water pump and carry outside water source and get into first siphunculus and second siphunculus through the inlet tube is interior, rivers will connect the discharge through the arc, thereby wash inside the drying device body.

Description

Lithium battery negative electrode material stoving case

Technical Field

The utility model relates to a battery equipment technical field specifically is a lithium cell negative pole material stoving case.

Background

The lithium battery is a battery which uses lithium metal or lithium alloy as a positive/negative electrode material and uses a non-aqueous electrolyte solution, the negative electrode material of the lithium battery is usually graphite, and the graphite needs to be dried during production so as to have certain stability.

However, the conventional drying apparatus cannot sufficiently contact the wet raw material inside with hot air, and is inconvenient for people to clean the wet raw material after use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium cell negative pole material stoving case to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a lithium battery negative electrode material stoving case includes: the top of the drying device body is fixedly connected with an exhaust pipe, one end of the exhaust pipe, far away from the drying device body, is fixedly connected with the top of a preheating box, the outer wall of the drying device body is fixedly connected with a connecting ring, the connecting ring is detachably connected with a temperature sensor, the temperature sensor is in signal connection with an external PLC (programmable logic controller), the bottom of the drying device body is fixedly connected with a blanking pipe, a stop valve is installed on the blanking pipe, one end of the blanking pipe, far away from the drying device body, is connected with the input end of an external negative pressure feeding fan, the speed reducing motor is detachably connected with the top of the drying device body, the output end of the speed reducing motor is fixedly connected with a transmission shaft, the outer wall of the transmission shaft is fixedly connected with a support rod, the support rod is detachably connected with a stirring blade, and a connecting pipe is arranged inside the drying device body, the utility model discloses a drying device, including drying device body, connecting pipe outer wall fixedly connected with symmetric distribution's air-supply line and inlet tube, the air-supply line with drying device body inner wall fixed connection, the inlet tube with drying device body inner wall fixed connection, the first siphunculus of connecting pipe outer wall fixedly connected with, connecting pipe outer wall fixedly connected with second siphunculus, first siphunculus with can dismantle on the second siphunculus and be connected with a plurality of evenly distributed's arc joint, preheating cabinet bottom fixedly connected with discharging pipe, install star type unloading valve on the discharging pipe.

Further, the outer wall of the drying device body is uniformly coated with an anticorrosive coating, the anticorrosive coating is made of anticorrosive paint, and a filter screen is fixedly connected inside the exhaust pipe.

Further, temperature sensor is close to the one end fixedly connected with sealing ring of go-between, the material of sealing ring is rubber, temperature sensor is close to the one end fixedly connected with connecting screw rod of go-between, temperature sensor passes through connecting screw rod with the go-between spiro union is fixed, connecting screw rod keeps away from temperature sensor's one end fixedly connected with detecting head, the detecting head is kept away from connecting screw rod's one end stretches into inside the drying device body.

Further, gear motor outer wall fixedly connected with mounting panel, be equipped with mounting bolt on the mounting panel, the mounting panel passes through mounting bolt with drying device body spiro union is fixed.

Further, stirring vane is close to the one end fixedly connected with installation threaded rod of bracing piece, stirring vane passes through installation threaded rod with the bracing piece spiro union is fixed, stirring vane is last to have seted up a plurality of evenly distributed's bleeder vent.

Further, the air-supply line is kept away from the one end of connecting pipe is stretched out the drying device body, just the air-supply line stretches out first solenoid valve is installed to the one end of drying device body, the air-supply line is kept away from the one end and the outside hot-blast connection of connecting pipe, the inlet tube is kept away from the one end of connecting pipe is stretched out the drying device body, just the inlet tube stretches out the second solenoid valve is installed to the one end of drying device body, the inlet tube is connected with outside water source.

Further, first siphunculus is located the air-supply line with the below of inlet tube, the second siphunculus is located the below of first siphunculus, just first siphunculus with the second siphunculus is the cross and distributes, fixedly connected with fixed threaded pipe on the arc connects.

Furthermore, be located on the first siphunculus the arc connect through fixed screwed pipe with first siphunculus spiro union is fixed, be located on the second siphunculus the arc connect through fixed screwed pipe with the second siphunculus spiro union is fixed.

Further, a lithium battery negative electrode material stoving case, the use step is as follows:

a: when the drying device is used, the lithium battery cathode material to be dried can enter the preheating box through the inlet pipe, then the star-shaped discharging valve is started to feed the raw material in the preheating box into the drying device body, and the star-shaped discharging valve can be closed when the raw material in the drying device body reaches a certain quantity.

B: after the step A is completed, hot air outside the external hot air blower is started to enter the drying device body through the air inlet pipe and is discharged through the arc-shaped joints on the first through pipe and the second through pipe, the hot air flows out in the same direction, air flows in the same direction can be formed inside the drying device body, the raw materials can be driven to move along the air flow direction, so that the raw materials inside the drying device body are sufficiently dried, the speed reduction motor is started to drive the transmission shaft to rotate, the supporting rod and the stirring blades are driven to rotate, the rotating directions of the supporting rod and the stirring blades are consistent with the air flow direction, the raw materials inside the drying device body can be stirred, the contact area between the raw materials to be dried and heat flows is increased, the air flows can pass through the air holes on the stirring blades, the normal flow of the air flows cannot be influenced, and the lowest temperature value and the highest temperature value are set on the external PLC controller, can detect this internal temperature of drying device through temperature sensor, when the inside temperature of drying device body reaches the temperature highest value that sets up on the PLC controller, outside PLC controller will be to signal of outside air heater transmission, outside air heater will stop, when the inside temperature of drying device body reaches the temperature lowest value that sets up on the PLC controller, outside PLC controller will be to signal of outside air heater transmission, outside air heater will start.

C: after accomplishing step B, it is internal to carry out the hot-blast of drying to enter into drying device, can discharge inside the preheating cabinet through the blast pipe, thereby it dries to the moist raw materials that enters into the preheating cabinet, open the stop valve and then start outside negative pressure feeding fan, the material of drying device internal stoving completion will be carried away, after using a period, can close the stop valve and relieve the connection between unloading pipe and the outside negative pressure feeding fan again, start outside water pump and carry the water source of outside and get into in first siphunculus and the second siphunculus through the inlet tube, rivers will pass through arc joint and discharge, thereby wash drying device body inside.

Compared with the prior art, the beneficial effects of the utility model are that:

1. when the utility model is used, external hot air enters the drying device body through the air inlet pipe and is discharged through the arc-shaped joints on the first through pipe and the second through pipe, the hot air flows out in the same direction, air flow in the same direction can be formed in the drying device body, raw materials can be driven to move along the air flow direction, the speed reduction motor is started to drive the transmission shaft to rotate, so as to drive the supporting rod and the stirring blade to rotate, the rotating directions of the supporting rod and the stirring blade are consistent with the air flow direction, the raw materials in the drying device body can be stirred, the contact area between the raw materials to be dried and heat flow is increased, after the drying device is used for a period of time, the stop valve can be closed, the connection between the discharging pipe and the external negative pressure feeding fan is released, an external water pump is started to convey external water source into the first through pipe and the second through pipe through the water inlet pipe, the water flow can be discharged through the arc-shaped connector, so that the interior of the drying device body is cleaned.

2. Use the utility model discloses a when, enter into this internal hot-blast that dries of drying device, can enter into inside the blast pipe, inside the filter of filter screen enters into the preheating cabinet to the moist raw materials that enter into the preheating cabinet are dried.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic structural view of the drying device body, the gear motor, the transmission shaft, the connecting pipe and the preheating box of the present invention;

fig. 3 is a schematic structural view of the drying device body and the temperature sensor of the present invention;

fig. 4 is a schematic structural view of the middle connection pipe of the present invention;

FIG. 5 is a schematic structural view of the support rod and the stirring blade of the present invention;

fig. 6 is another schematic structural diagram of the middle connection pipe of the present invention.

Reference numerals: 1. a drying device body; 11. an anti-corrosion coating; 12. an exhaust pipe; 121. filtering with a screen; 13. a connecting ring; 14. a temperature sensor; 141. a seal ring; 142. connecting a threaded rod; 143. a probe; 15. a discharging pipe; 151. a stop valve; 2. a reduction motor; 21. mounting a plate; 211. installing a bolt; 3. a drive shaft; 31. a support bar; 32. a stirring blade; 321. mounting a threaded rod; 322. air holes are formed; 4. a connecting pipe; 41. an air inlet pipe; 411. a first solenoid valve; 42. a water inlet pipe; 421. a second solenoid valve; 43. a first through pipe; 44. a second pipe; 45. an arc-shaped joint; 451. fixing the threaded pipe; 5. a preheating box; 51. a feed pipe; 52. a discharge pipe; 521. star type unloading valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 6, a drying box for a negative electrode material of a lithium battery includes: the drying device comprises a drying device body 1 and a speed reducing motor 2, wherein the top of the drying device body 1 is fixedly connected with an exhaust pipe 12, one end of the exhaust pipe 12, which is far away from the drying device body 1, is fixedly connected with the top of a preheating box 5, the outer wall of the drying device body 1 is fixedly connected with a connecting ring 13, the connecting ring 13 is detachably connected with a temperature sensor 14, the temperature sensor 14 is in signal connection with an external PLC (programmable logic controller), the bottom of the drying device body 1 is fixedly connected with a blanking pipe 15, the blanking pipe 15 is provided with a stop valve 151, one end of the blanking pipe 15, which is far away from the drying device body 1, is connected with the input end of an external negative pressure feeding fan, the speed reducing motor 2 is detachably connected with the top of the drying device body 1, the output end of the speed reducing motor 2 is fixedly connected with a transmission shaft 3, the outer wall of the transmission shaft 3 is fixedly connected with a support rod 31, the support rod 31 is detachably connected with a stirring blade 32, and a connecting pipe 4 is arranged inside the drying device body 1, 4 outer wall fixedly connected with symmetric distribution's of connecting pipe air-supply line 41 and inlet tube 42, air-supply line 41 and 1 inner wall fixed connection of drying device body, inlet tube 42 and 1 inner wall fixed connection of drying device body, the first siphunculus 43 of 4 outer wall fixedly connected with of connecting pipe, 4 outer wall fixedly connected with of connecting pipe second siphunculus 44, can dismantle the arc that is connected with a plurality of evenly distributed on first siphunculus 43 and the second siphunculus 44 and connect 45, 5 bottom fixedly connected with discharging pipe 52 of preheating cabinet, install star type unloading valve 521 on the discharging pipe 52.

In fig. 1, 2 and 3: the exhaust pipe 12 is fixedly connected to the top of the drying device body 1, one end of the exhaust pipe 12, which is far away from the drying device body 1, is fixedly connected to the top of the preheating tank 5, the outer wall of the drying device body 1 is uniformly coated with the anticorrosive coating 11, the anticorrosive coating 11 is made of anticorrosive paint, the anticorrosive paint has good corrosion resistance, the drying device body 1 can be protected by the anticorrosive coating 11, the filter screen 121 is fixedly connected to the inside of the exhaust pipe 12, the outer wall of the drying device body 1 is fixedly connected with the connecting ring 13, the connecting ring 13 is detachably connected to the connecting ring 13, the temperature sensor 14 is in signal connection with an external PLC (programmable logic controller), the sealing ring 141 is fixedly connected to one end of the temperature sensor 14, which is close to the connecting ring 13, the sealing rod 142 is fixedly connected to one end of the temperature sensor 14, which is close to the connecting ring 13, the temperature sensor 14 is fixed to the connecting ring 13 through the connecting rod 142 in a threaded manner, the end of the connecting threaded rod 142 far away from the temperature sensor 14 is fixedly connected with a detecting head 143, the end of the detecting head 143 far away from the connecting threaded rod 142 extends into the drying device body 1, the bottom of the drying device body 1 is fixedly connected with a blanking pipe 15, a stop valve 151 is installed on the blanking pipe 15, one end of the blanking pipe 15 far away from the drying device body 1 is connected with the input end of an external negative pressure feeding fan, a speed reducing motor 2 is detachably connected with the top of the drying device body 1, the outer wall of the speed reducing motor 2 is fixedly connected with a mounting plate 21, a mounting bolt 211 is arranged on the mounting plate 21, the mounting plate 21 is fixed with the drying device body 1 through the mounting bolt 211 in a threaded manner, the output end of the speed reducing motor 2 is fixedly connected with a transmission shaft 3, when the device is used, the lowest temperature value and the highest temperature value are set on an external PLC controller, and the temperature in the drying device body 1 can be detected through the temperature sensor 14, when the temperature in drying device body 1 reaches the temperature highest value that sets up on the PLC controller, outside PLC controller will transmit a signal to outside air heater, outside air heater will stop, when the temperature in drying device body 1 reaches the temperature lowest value that sets up on the PLC controller, outside PLC controller will transmit a signal to outside air heater, outside air heater will start, it is hot-blast that to carry out the stoving in drying device body 1 to enter into, can discharge inside preheating cabinet 5 through blast pipe 12, thereby dry the moist raw materials that enter into preheating cabinet 5, open stop valve 151 and then start outside negative pressure feeding fan, the material of drying completion in the drying device body 1 will be carried away.

In fig. 2, 4, 5 and 6: the outer wall of the transmission shaft 3 is fixedly connected with a supporting rod 31, the supporting rod 31 is detachably connected with a stirring blade 32, one end of the stirring blade 32 close to the supporting rod 31 is fixedly connected with an installation threaded rod 321, the stirring blade 32 is fixed with the supporting rod 31 through the installation threaded rod 321 in a threaded manner, a plurality of air holes 322 which are uniformly distributed are formed in the stirring blade 32, a connecting pipe 4 is arranged inside the drying device body 1, the outer wall of the connecting pipe 4 is fixedly connected with an air inlet pipe 41 and an water inlet pipe 42 which are symmetrically distributed, the air inlet pipe 41 is fixedly connected with the inner wall of the drying device body 1, the water inlet pipe 42 is fixedly connected with the inner wall of the drying device body 1, one end of the air inlet pipe 41 far away from the connecting pipe 4 extends out of the drying device body 1, one end of the air inlet pipe 41 extending out of the drying device body 1 is provided with a first electromagnetic valve 411, one end of the air inlet pipe 41 far away from the connecting pipe 4 is connected with external hot air, one end of the water inlet pipe 42 extending out of the drying device body 1, and one end of the water inlet pipe 42 extending out of the drying device body 1 is provided with a second electromagnetic valve 421, the water inlet pipe 42 is connected with an external water source, the outer wall of the connecting pipe 4 is fixedly connected with a first through pipe 43, the outer wall of the connecting pipe 4 is fixedly connected with a second through pipe 44, the first through pipe 43 and the second through pipe 44 are detachably connected with a plurality of arc joints 45 which are uniformly distributed, the first through pipe 43 is positioned below the air inlet pipe 41 and the water inlet pipe 42, the second through pipe 44 is positioned below the first through pipe 43, the first through pipe 43 and the second through pipe 44 are in cross distribution, the arc joints 45 are fixedly connected with fixed threaded pipes 451, the arc joints 45 positioned on the first through pipe 43 are fixed with the first through threaded pipes 451 in a threaded manner, the arc joints 45 positioned on the second through pipe 44 are fixed with the second through threaded pipes 451 in a threaded manner, the bottom of the preheating box 5 is fixedly connected with a discharge pipe 52, the discharging pipe 52 is provided with a star-shaped discharging valve 521, when in use, the lithium battery cathode material to be dried enters the preheating box 5 through the feeding pipe 51, then the star-shaped discharging valve 521 is started to feed the raw material in the preheating box 5 into the drying device body 1, when the raw material in the drying device body 1 reaches a certain amount, the star-shaped discharging valve 521 can be closed, the hot air outside the external hot air blower is started enters the drying device body 1 through the air inlet pipe 41 and is discharged through the arc-shaped joints 45 on the first through pipe 43 and the second through pipe 44, the hot air flows out in the same direction, the air flows in the same direction can be formed in the drying device body 1, the raw material can be driven to move along the air flow direction, so that the raw material in the drying device body 1 is sufficiently dried, and then the speed reduction motor 2 is started to drive the transmission shaft 3 to rotate, thereby drive bracing piece 31 and stirring vane 32 and rotate, and bracing piece 31 and stirring vane 32 rotation direction are unanimous with the air current direction, can stir the raw materials of drying device body 1 inside, increase the area of contact of the raw materials that need to dry and thermal current, and the air current can pass through bleeder vent 322 on the stirring vane 32, can not influence the normal flow of air current, after using a period, can close stop valve 151 and relieve the connection between unloading pipe 15 and the outside negative pressure pay-off fan again, start in outside water pump carries the water source of outside and carries through inlet tube 42 and get into first siphunculus 43 and second siphunculus 44 in, rivers will pass through arc joint 45 and discharge, thereby wash drying device body 1 inside.

To sum up, the utility model provides a lithium battery cathode material drying box, at the time of working, when using, the lithium battery cathode material that needs to be dried can enter into the preheating box 5 through the inlet pipe 51, then start star-shaped blanking valve 521 and send the raw material in the preheating box 5 into the drying device body 1, when the raw material that enters into the drying device body 1 reaches a certain amount, star-shaped blanking valve 521 can be closed, the hot air that starts the outside hot-air blower will enter into the drying device body 1 through the air inlet pipe 41, and is discharged through the arc-shaped joint 45 on the first through pipe 43 and the second through pipe 44, and the flowing direction of the hot air is the same, the air current with the same direction can be formed in the drying device body 1, the raw material can be driven to move along the air current direction, thereby the raw material in the drying device body 1 is fully dried, then the speed reducing motor 2 is started to drive the transmission shaft 3 to rotate, thereby driving the support rod 31 and the stirring blade 32 to rotate, the rotation direction of the support rod 31 and the stirring blade 32 is consistent with the air flow direction, the raw material in the drying device body 1 can be stirred, the contact area of the raw material to be dried and the heat flow is increased, the air flow can pass through the air holes 322 on the stirring blade 32, the normal flow of the air flow is not influenced, the lowest temperature value and the highest temperature value are set on the external PLC, the temperature in the drying device body 1 can be detected through the temperature sensor 14, when the internal temperature of the drying device body 1 reaches the highest temperature value set on the PLC, the external PLC transmits a signal to the external hot air blower, the external hot air blower stops, when the internal temperature of the drying device body 1 reaches the lowest temperature value set on the PLC, outside PLC controller will be to signal of outside air heater transmission, outside air heater will start, it is hot-blast to carry out the stoving in the drying device body 1 to enter into, can discharge inside the preheating cabinet 5 through blast pipe 12, thereby dry the moist raw materials that enters into the preheating cabinet 5, open stop valve 151 and then start outside negative pressure feeding fan, the material of drying the completion in the drying device body 1 will be carried away, after using a period, can close stop valve 151 and remove the connection between unloading pipe 15 and the outside negative pressure feeding fan again, start outside water pump and carry the water source of outside through inlet tube 42 and carry and get into in first siphunculus 43 and the second siphunculus 44, rivers will discharge through arc joint 45, thereby wash inside drying device body 1.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A lithium battery negative electrode material stoving case includes: the drying device comprises a drying device body (1) and a speed reducing motor (2), and is characterized in that an exhaust pipe (12) is fixedly connected to the top of the drying device body (1), one end, far away from the drying device body (1), of the exhaust pipe (12) is fixedly connected to the top of a preheating box (5), a connecting ring (13) is fixedly connected to the outer wall of the drying device body (1), a temperature sensor (14) is detachably connected to the connecting ring (13), the temperature sensor (14) is in signal connection with an external PLC (programmable logic controller), a discharging pipe (15) is fixedly connected to the bottom of the drying device body (1), a stop valve (151) is installed on the discharging pipe (15), and one end, far away from the drying device body (1), of the discharging pipe (15) is connected with the input end of an external negative pressure feeding fan;

gear motor (2) can dismantle the connection and be in drying device body (1) top, gear motor (2) output end fixedly connected with transmission shaft (3), transmission shaft (3) outer wall fixedly connected with bracing piece (31), can dismantle on bracing piece (31) and be connected with stirring vane (32), drying device body (1) inside is equipped with connecting pipe (4), air-supply line (41) and inlet tube (42) of connecting pipe (4) outer wall fixedly connected with symmetric distribution, air-supply line (41) with drying device body (1) inner wall fixed connection, inlet tube (42) with drying device body (1) inner wall fixed connection, connecting pipe (4) outer wall fixedly connected with first siphunculus (43), connecting pipe (4) outer wall fixedly connected with second siphunculus (44), first siphunculus (43) with can dismantle a plurality of evenly distributed's arc on second siphunculus (44), first siphunculus (43) with second siphunculus (44) A form joint (45);

the bottom of the preheating box (5) is fixedly connected with a discharge pipe (52), and a star-shaped discharging valve (521) is mounted on the discharge pipe (52).

2. The drying box for the lithium battery negative electrode material is characterized in that an anticorrosive coating (11) is uniformly coated on the outer wall of the drying device body (1), the anticorrosive coating (11) is made of anticorrosive paint, and a filter screen (121) is fixedly connected inside the exhaust pipe (12).

3. The drying box for the negative electrode material of the lithium battery as claimed in claim 1, further comprising: temperature sensor (14) are close to one end fixedly connected with sealing ring (141) of go-between (13), the material of sealing ring (141) is rubber, temperature sensor (14) are close to one end fixedly connected with connecting screw rod (142) of go-between (13), temperature sensor (14) pass through connecting screw rod (142) with go-between (13) spiro union is fixed, connecting screw rod (142) are kept away from one end fixedly connected with detecting head (143) of temperature sensor (14), keeping away from detecting head (143) the one end of connecting screw rod (142) stretches into inside drying device body (1).

4. The drying box for the negative electrode material of the lithium battery as claimed in claim 1, further comprising: gear motor (2) outer wall fixedly connected with mounting panel (21), be equipped with mounting bolt (211) on mounting panel (21), mounting panel (21) pass through mounting bolt (211) with drying device body (1) spiro union is fixed.

5. The drying box for the negative electrode material of the lithium battery as claimed in claim 1, further comprising: stirring vane (32) are close to the one end fixedly connected with installation threaded rod (321) of bracing piece (31), stirring vane (32) pass through installation threaded rod (321) with bracing piece (31) spiro union is fixed, a plurality of evenly distributed's bleeder vent (322) have been seted up on stirring vane (32).

6. The drying box for the negative electrode material of the lithium battery as claimed in claim 1, further comprising: keep away from air-supply line (41) the one end of connecting pipe (4) is stretched out drying device body (1), just air-supply line (41) is stretched out first solenoid valve (411) are installed to the one end of drying device body (1), air-supply line (41) are kept away from the one end and the outside hot-blast connection of connecting pipe (4), inlet tube (42) are kept away from the one end of connecting pipe (4) is stretched out drying device body (1), just inlet tube (42) stretch out second solenoid valve (421) are installed to the one end of drying device body (1), inlet tube (42) are connected with outside water source.

7. The drying box for the negative electrode material of the lithium battery as claimed in claim 1, further comprising: first siphunculus (43) are located air-supply line (41) with the below of inlet tube (42), second siphunculus (44) are located the below of first siphunculus (43), just first siphunculus (43) with second siphunculus (44) are the cross and distribute, arc connects fixedly connected with fixed screwed pipe (451) on (45).

8. The drying box for the negative electrode material of the lithium battery as claimed in claim 7, further comprising: be located on first siphunculus (43) arc joint (45) pass through fixed screwed pipe (451) with first siphunculus (43) spiro union is fixed, is located on second siphunculus (44) arc joint (45) pass through fixed screwed pipe (451) with second siphunculus (44) spiro union is fixed.

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