3 Layers Vacuum Drying Oven for Supercapacitor Electrodes Manufacturing

1、Scope of oven use：
Suitable for baking lithium-ion battery electrodes, cells, and waiting liquid batteries

2、Configuration
A. Box: Made of 3.0mm imported 304 stainless steel, with reinforcing ribs made of the same material
B. Rack: Made of high-quality cold-rolled sheets of 1.5mm and 2.0mm, consisting of two layers of insulation. The cotton is made of three layered materials: aluminum silicate,aluminum foil cotton, and sound insulation cotton
C. Hot air system: Each layer is composed of fans, heating boxes, air ducts, air ducts, etc., which can better achieve temperature consistency
D. Control system: composed of PLC, touch screen, pressure sensor, high vacuum baffle valve, solid-state relay, temperature controller, electromagnetic valve group, etc
E. Hardware components: including doors, back covers, vacuum tubes, and other stamped parts, etc

3、Machine characteristics

A. Principle: Surrounding hot air circulation. Double layer thermal insulation, with an external temperature below 45 degrees (excluding glass doors);

B. Heating structure: Adopting O-shaped external circulation air, with left side air outlet and right side air suction, achieving temperature consistency;

C. High precision pneumatic baffle valve, isolated three-layer independent control;

D. Touch screen display, automatic cycle and automatic control, completing the final step and returning to vacuum holding pressure; Digital safety temperature display;

E. Elastic double-layer glass door, three-layer pressure detection, with overvoltage protection function;

F. Equipped with a multi position overtemperature protection temperature control device, it can effectively prevent temperature control safety issues such as temperature loss, and

improve the accuracy of overtemperature protection;

G. The control screen adopts a touch screen for centralized operation, which is convenient to operate and reliable to control. The program controller adopts PLC control, which works

stably and reliably;

H. The three-layer oven is individually controlled and can set the total baking time, cycle time, vacuum pumping time, and drying time separately. After setting the parameters, the automatic button can be pressed to enter the automatic baking program. When the time reaches the baking time, it will automatically shut down. If the temperature exceeds the safe temperature value, an alarm will be triggered and the red indicator light will light up, and

heating will automatically stop. The alarm information will be displayed on the display

screen;

I. Filling the box with dry air to any set value between -0.1Mpa and -0.02Mpa can automatically stop inflation;

J. In normal operation, the fault prompt alarm and the cause of the fault can be described on the screen;

K. Vacuum tubes have anti-corrosion properties;

L. Program interlocking prevents inter layer gas leakage.

4、Main parameters

1	Heating principle	Three layer separate hot air external circulation heating
2	Power source	380V   50HZ   16KW
3	Gas source	Dry gas 0.1-0.2MPa/vacuum -0.098-0.1Mpa/compressed gas 0.4-0.5MPa
4	Temperature	Room temperature to 150℃
5	Vacuum degree	When drawn between -0.1-0.098Mpa, the digital    display maintains a pressure of ≥ 95% for 24 hours
6	Display error	Set value and stable displayed value≤±0.1℃
7	Thermal insulation performance	The outer wall temperature shall not exceed 45 degrees (excluding glass doors)
8	Temperature uniformity	50MM away from the wall at each point inside the cavity: ≤ ± 3.5 ℃ under vacuum, ≤ ± 2.5 ℃ under normal pressure
9	String temperature property	≤20℃（Within 100 degrees of temperature rise in adjacent layers, only within 20 degrees higher than room temperature）
10	Response speed	The meter display reaches the set value within 30  minutes, and the temperature of the unloaded core stabilizes for 45-60 minutes
11	Chamber size	330H×830W×800D×3
12	Outer size	1970H× 1250W× 1100D

 5、Electrical configuration:

SN	Item	Specification
1	PLC	Fujian Weikong
2	Touch screen	7-inch LCD maintenance color screen
3	Temperature controller	Digital intelligent temperature controller/microcomputer PID automatic calculation
4	Temperature mode	PID+SSR(thyristor), Shanghai Yatai
5	Over temperature protection	Shanghai Yatai Temperature Controller
6	Temperature sensor	K-type thermocouple
7	Vacuum gauge	Digital vacuum gauge/- 101.0-101.0 kPa positive and negative pressure universal type, Taiwan Jingdeng
8	Vacuum valve/nitrogen valve	High vacuum baffle valve
9	Alarm	Sound and light alarm
10	Heating tube	Best
11	Control mode	Each studio works independently, and the heating, vacuuming, and nitrogen filling modes are PLC automatic circulation. The operation of each working section is set through the touch screen

5、Installation conditions

5.1 The distance between the front of the oven and the wall shall not be less than

1500mm, and the distance between the left and right rear sides shall not be less than 500mm. Users must provide independent power distribution switches and be responsible for

connecting external power sources to the equipment.

5.2 Installation area conditions (provided by Party A):

5.2.1 Power supply: three-phase five wire, frequency: 50 ± 1Hz;

5.2.2 Vacuum: Pressure -0.1MPA, vacuum tube DN20

5.2.3 Nitrogen: Pressure 0.1~0.2MPA, nitrogen pipeline D12 gas pipe

5.2.4 Compressed air: 0.4~0.6MPA, D8 air pipe

5.4 Energy consumption

5.4.1 Maximum hours ≤ 16kw/hour

5.4.2 When uniform, ≤ 2.5kw/hour

5.5 Environmental Requirements

5.5.1 Temperature -5~35 ℃, humidity ≤ 40%

5.5.2 There are no flammable or explosive gases, liquids, or solids in the surrounding area

5.5.3 Avoid baking flammable materials, gases, and explosives inside the box.