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Drying oven for lithium battery coating machine and drying oven air current control method

A control method and coating machine technology, which are applied to the device, coating, pretreatment surface and other directions of coating liquid on the surface, which can solve the problem of reducing the quality of the lithium battery material coated on the surface of the material belt and affecting the stability of the material belt. It can improve the drying quality and drying efficiency, the airflow is stable, and the heating effect is good.

Active Publication Date: 2014-09-10
广东海中新能源设备股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

figure 1 As shown, a small wind volume is formed on both sides of each tuyere 2, and there are the same number of wind volumes as the tuyere 2 in each oven, and the air flow in the oven is chaotic, which affects the stability of the material belt and reduces the material flow rate. Quality of lithium battery materials with surface coating
In addition, the drying speed is slow, the drying efficiency is low, and the drying effect is poor

Method used

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  • Drying oven for lithium battery coating machine and drying oven air current control method
  • Drying oven for lithium battery coating machine and drying oven air current control method
  • Drying oven for lithium battery coating machine and drying oven air current control method

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A method for controlling the oven air flow of a lithium battery coating machine, see Figure 2 to Figure 3 shown, including

[0031] The two rows of air nozzles 2 on the top and bottom of the oven 1 respectively blow hot air to the material tape 4 in the tape running channel 3; the hot air is blown from the air nozzle 2 to dry the material tape 4;

[0032] After the air nozzle 2 blows the hot air to the surface of the strip 4, a negative pressure suction area 5 is formed between two adjacent air nozzles 2;

[0033] The negative pressure suction area 5 between two adjacent air nozzles 2 supplements air or hot air to the surface of the strip 4;

[0034] Along the width direction of the material belt 4, a high-pressure zone is formed in the middle area of ​​the material belt 4, and a low-pressure zone is formed on both sides of the material belt 4; hot air gathered in the high-pressure zone in the middle flows to the low-pressure zones on both sides respectively;

[0035...

Embodiment 2

[0040] A kind of oven of lithium battery coating machine, see Figure 2 to Figure 3 As shown, it includes several sections of ovens 1, and each section of oven 1 is provided with upper and lower rows of air nozzles 2, and between the upper and lower rows of air nozzles 2 is provided with a belt-running channel 3 through which a feeding belt 4 passes. A negative pressure suction area 5 for supplementing air or hot air is arranged between the nozzles 2, and the negative pressure air suction area 5 communicates with external air or a hot air source. Negative pressure air suction ports are respectively arranged on both sides of the air nozzle 2, after the air nozzle 2 blows hot air to the surface of the material tape 4, the negative pressure air suction area 5 supplies air or hot air to the surface of the material tape 4. When hot air is blown out from the tuyere 2, a negative pressure is formed at the negative pressure suction port, and the negative pressure suction port sucks th...

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Abstract

The invention discloses a drying oven for a lithium battery coating machine and a drying oven air current control method. The method includes: a negative-pressure air suction area is formed between each two adjacent air nozzles after air nozzles blow hot air to the surface of a material strap; the negative-pressure air suction area between each two adjacent air nozzles supplies air or hot air to the surface of the material strap; hot air gathered in a middle high-pressure area flows to low-pressure areas on two sides; hot air on the upper and lower surfaces of the material strap flows along the forward direction of the material strap or flows in a direction opposite to the forward direction of the material strap. Air current in the drying oven is controlled stably, air whirl is avoided, the hot air is discharged stably, staying time of the hot air in the drying oven is long, and consequently hot air utilization rate is increased, less energy is consumed for drying the material strap, effectiveness in material strap heating is achieved, and drying quality and drying efficiency are improved.

Description

technical field [0001] The invention relates to the technical field of a drying method for a material belt of a lithium battery coater, in particular to an oven and an airflow control method for a lithium battery coater. Background technique [0002] The lithium battery coating machine in the prior art is used to coat the lithium battery material on the surface of the material tape. The front end of the lithium battery coating machine is provided with an unwinding mechanism, and the material tape is unwound through the unwinding mechanism, and the material tape passes through the coating. The battery material is coated on the die head, then dried in several ovens, and finally the material tape is pulled by the winding mechanism, and the material tape is wound into a roll. [0003] Each oven is provided with upper and lower rows of tuyere 2, and each tuyere 2 is arranged at equal intervals along the length direction of the oven. channel, the feed belt passes through, and the...

Claims

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Application Information

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IPC IPC(8): B05D3/02B05D3/04
Inventor 黄春章余创新
Owner 广东海中新能源设备股份有限公司
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