CN-122006986-A - Infrared drying device and oven equipment

CN122006986ACN 122006986 ACN122006986 ACN 122006986ACN-122006986-A

Abstract

The invention discloses an infrared drying device and oven equipment, the infrared drying device comprises an infrared module, a porous graphite decompression module and a gas compression module, the infrared module comprises a shell, a pressing plate and an infrared plate, the top end of the pressing plate is arranged at the bottom end of the shell in a sealing way and is provided with a groove, the infrared plate is arranged at the bottom of the groove, the back surface of the infrared plate is in sealing fit with the bottom end of the shell, a positive pressure cavity is formed by enclosing the infrared plate and the shell, the bottom end of the pressing plate is provided with a light outlet communicated with the groove, the light outlet corresponds to the infrared plate, the shell is connected with an air inlet pipe and an air outlet pipe, the air inlet pipe and the air outlet pipe are both communicated with the positive pressure cavity, the air inlet pipe is connected with the porous graphite decompression module, the porous graphite decompression module is connected with a connecting air pipe, and the connecting air pipe is connected with the gas compression module. The invention can improve the safety in the drying process.

Inventors

QIU DONGQING
ZHOU CHANGHONG
YANG LINLIN
ZHU GAOWEN

Assignees

深圳市新嘉拓自动化技术有限公司

Dates

Publication Date: 20260512
Application Date: 20260209

Claims (10)

1. The utility model provides an infrared drying device, its characterized in that, includes infrared module, porous graphite decompression module and gas compression module, infrared module includes shell, clamp plate and infrared board, the top seal of clamp plate sets up the bottom of shell is equipped with the recess, the infrared board is arranged in the bottom of recess, the back of infrared board with the bottom seal fit of shell, enclose between infrared board and the shell and close and form the malleation chamber, the bottom of clamp plate be equipped with the light outlet of recess intercommunication, the light outlet with the infrared board corresponds, the shell is connected with intake pipe and outlet duct, intake pipe and outlet duct all with malleation chamber intercommunication, the intake pipe with porous graphite decompression module is connected with the connection trachea, the connection trachea with gas compression module is connected.
2. The infrared drying apparatus of claim 1, wherein the air inlet pipe is connected with a branch pipe, the branch pipe is connected with a first pressure gauge, and the air outlet pipe is connected with a second pressure gauge.
3. The infrared drying device according to claim 1, wherein the top end of the pressing plate is detachably arranged at the bottom end of the shell through an infrared fastener, a first infrared sealing gasket is clamped between the top end of the pressing plate and the bottom end of the shell, and a second infrared sealing gasket is clamped between the back surface of the infrared plate and the bottom end of the shell.
4. The infrared drying apparatus of claim 1, wherein the back side of the infrared plate is embedded with a temperature sensor.
5. The infrared drying device according to claim 1, wherein a U-shaped reflecting plate is arranged in the positive pressure cavity, a transverse portion of the reflecting plate is close to the inner wall of the top end of the positive pressure cavity and opposite to the infrared plate, and two vertical portions of the reflecting plate are respectively close to the inner walls of the two sides of the positive pressure cavity.
6. The infrared drying device according to claim 1, wherein the porous graphite decompression module comprises a shell, a gland and a porous graphite block, one end of the gland is arranged at one end of the shell in a sealing manner, an inner cavity is formed by enclosing between the gland and the shell, the porous graphite block is arranged in the inner cavity and divides the inner cavity into a first cavity and a second cavity, the other end of the gland is connected with the connecting air pipe, the connecting air pipe is communicated with the first cavity, the air inlet pipe is connected with the other end of the shell, and the air inlet pipe is communicated with the second cavity.
7. The infrared drying device according to claim 6, wherein one end of the gland is detachably arranged at one end of the shell through a decompression fastener, a first decompression sealing gasket is clamped between one end of the gland and one end of the shell, a second decompression sealing gasket is clamped between one end of the porous graphite block and one end of the gland, a step is formed on the inner wall of the second chamber, and a third decompression sealing gasket is clamped between the other end of the porous graphite block and the step.
8. The infrared drying device of claim 1, wherein the gas compression module comprises a main air compressor, a standby air compressor and an electromagnetic valve, the main air compressor is connected with a first connecting pipe, the standby air compressor is connected with a second connecting pipe, the first connecting pipe and the second connecting pipe are both connected with the electromagnetic valve, and the connecting air pipe is connected with the electromagnetic valve.
9. The infrared drying device according to claim 1, wherein the connecting air pipe is sequentially provided with a triplet and a pressure regulating valve along a direction close to the porous graphite pressure reducing module.
10. An oven device comprising an oven, wherein an inlet and an outlet are respectively formed in two ends of the oven, the oven device is characterized by further comprising an infrared drying device according to any one of claims 1-9, an infrared module of the infrared drying device is arranged in the oven and above a pole piece, a porous graphite decompression module and a gas compression module of the infrared drying device are both arranged outside the oven, and an air inlet pipe and an air outlet pipe are both extended out of the oven.

Description

Infrared drying device and oven equipment Technical Field The invention relates to the technical field of lithium battery production, in particular to an infrared drying device and oven equipment. Background The traditional lithium battery pole piece drying process generally adopts a hot air drying technology, specifically, hot air is blown to the pole piece through an air nozzle in an oven, so that the slurry layer of the pole piece is heated and dried. The method has the defects that 1, the thermal resistance is high, the heat transfer efficiency is low, the heat is difficult to uniformly permeate, 2, the drying gradient is out of control, the surface of the slurry is quickly dried and hardened, the solvent remains in the slurry, or the surface is excessively dehydrated during the internal drying, so that structural defects such as pole piece microcracks and the like are induced. In order to overcome the defects, an infrared radiation heating and drying technology is generally adopted at present, specifically, an infrared module in an oven of oven equipment radiates infrared rays to a pole piece, and the infrared module directly excites molecules in slurry to vibrate and generate heat, so that the slurry layer of the pole piece is heated and dried. However, because the infrared module is arranged in the oven, NMP (N-methyl pyrrolidone) steam generated in the heating and drying process of the slurry layer of the pole piece can enter the infrared module, and after the back of the infrared plate of the infrared module is overheated and contacts with NMP steam, combustion or explosion is easily initiated, so that the safety in the drying process is reduced. Disclosure of Invention In order to overcome the defects in the prior art, the invention provides an infrared drying device and oven equipment, which can improve the safety in the drying process. The technical scheme adopted for solving the technical problems is as follows: The invention provides an infrared drying device, which comprises an infrared module, a porous graphite decompression module and a gas compression module, wherein the infrared module comprises a shell, a pressing plate and an infrared plate, the top end of the pressing plate is arranged at the bottom end of the shell in a sealing way and is provided with a groove, the infrared plate is arranged at the bottom of the groove, the back surface of the infrared plate is in sealing fit with the bottom end of the shell, a positive pressure cavity is formed by encircling the infrared plate and the shell, the bottom end of the pressing plate is provided with a light outlet communicated with the groove, the light outlet corresponds to the infrared plate, the shell is connected with an air inlet pipe and an air outlet pipe, the air inlet pipe and the air outlet pipe are both communicated with the positive pressure cavity, the air inlet pipe is connected with the porous graphite decompression module, and the porous graphite decompression module is connected with a connecting air pipe which is connected with the gas compression module. As the preferable technical scheme, the air inlet pipe is connected with a branch pipe, the branch pipe is connected with a first pressure gauge, and the air outlet pipe is connected with a second pressure gauge. As an optimal technical scheme, the top end of the pressing plate is detachably arranged at the bottom end of the shell through an infrared fastener, a first infrared sealing gasket is clamped between the top end of the pressing plate and the bottom end of the shell, and a second infrared sealing gasket is clamped between the back surface of the infrared plate and the bottom end of the shell. As a preferable technical scheme, the back of the infrared plate is embedded with a temperature sensor. As the preferable technical scheme, the positive pressure cavity is internally provided with a U-shaped reflecting plate, the transverse part of the reflecting plate is close to the inner wall of the top end of the positive pressure cavity and opposite to the infrared plate, and the two vertical parts of the reflecting plate are respectively close to the inner walls of the two sides of the positive pressure cavity. As the preferable technical scheme, porous graphite decompression module includes casing, gland and porous graphite piece, the one end seal of gland sets up the one end of casing, enclose between gland and the casing and close and form the inner chamber, porous graphite piece sets up in the inner chamber and will the inner chamber is divided into first cavity and second cavity, the other end of gland is connected with connect the trachea, connect the trachea with first cavity intercommunication, the intake pipe with the other end of casing is connected, the intake pipe with the second cavity intercommunication. According to the technical scheme, one end of the gland is detachably arranged at one end of the shell through a decompression fastener, a first decom