1400mm Belt Width Annealing Furnace for Solar Cell Glass Substrate with Computer Control

• After-sales Service: 12 Months
• Warranty: 12 Months
• Type: Perovskite Heating Equipment
• Certification: CE, ISO
• Structure: Horizontal Type
• Brand: Hengli
• Model NO.: HSK14005-1804Z
• Maximum Temperature: 350c
• Glass Specification: 1245*635*3mm
• Number of Temperature Zones: 18 Zones
• Temperature Uniformity: +-5c
• Transport Package: Wooden Box Iron Bracket
• Specification: 28200*2600*2000mm
• Trademark: HENGLI
• Origin: China
• HS Code: 8514390090
• Production Capacity: 700 Sets/Year

Product Description

HSK14005-1804Z Annealing Furnace
1,Typical application areas:

Typical application fields

It is mainly used for the annealing heat treatment process of solar cell glass substrate under the condition of air atmosphere

2,Equipment specification and structure:

Code	Name		Length	Explain
A	Total length		28200mm
B	Import/ export   platform		1500mm	1350±20mm above the ground,The length of import and export platforms are the same
C	Furnace frame		25200mm
D	Import transition section		900mm	Including air curtain
E	Import insulation transition		900mm	Ceramic fiber material thermal insulation transition, including exhaust pipe
F	Heating section		16200mm	There are 18 temperature zones in total.The power is 14kw per zone and the length is 900mm per zone; The total design power is 252kw
G	Free cooling zone		900mm	No heating element, thermal insulation material
H	Water cooling zone		4500mm	Four sections water cold steel jacket (water cooling coil type), and the last section of steel jacket contains 350mm air curtain.
I	Forced air cooling section		1800mm	Forced air cooling with large air volume
K	Equipment height		2000mm	Excluding chimney, feet and indication light heigh
L	Equipment operation panel layout location
Furnace structure		Large furnace cavity and ultra light insulation material masonry structure are adopted
Effective height		50mm
Equipment weight		About 27000kg
Overall dimension		28200×2600×2000mm(L×W×H),excluding foundation, chimney and indicator light
Appearance color		The hanging plate adopts high-temperature plastic spraying, the color is camel gray computer color
Glass specification		1245×635×3mm;glass size deviation<±2mm,glass warpage degree≤3mm
Production cycle		≤60sec
Feeding mode		Long side feed(1245mm)
Glass fragmentation rate		<3‰
Equipment stability		MTBF(Interval between equipment failures):≥720 hours/time
		MTTR(Maintenance time of equipment failure):≤2hours/time
		Uptime:≥98%
		Schedule PM time:<1%
		Unscheduled maintenance time:<1%
Special requirements		The stainless steel tank ceiling device on the upper part of the furnace can effectively prevent the top insulation material from falling and improve the cleanliness of the furnace

3,Thermal system:

Rated temperature	300ºC
Maximum temperature	350ºC
Heating element	Heating plates
Heating power	252kW
Empty furnace insulation power	≤90KW
Number of temperature zones	18 zones
Temperature control points	54  points(There are  left, middle and right temperature control points of each temperature zone, and the upper and lower proportional temperature control)
Thermocouple	K type
Surface temperature rise	<35ºC
Discharge temperature	≤60ºC(with belt speed 645mm/min)
Temperature control stability	±1ºC
Temperature uniformity	±5ºC(Constant temperature zone, cross section of the same belt)

4,Transmission system:

Belt width	1400mm
Belt model	Wire diameter and threading diameter¢2.2*¢2.8,grid 8*16
Belt material	Imported SUS316L
Maximum load	20Kg/m^2(excluding the self weight of the belt)
Transmission mode	Large wrap angle friction drive
Speed regulation range	300~1200mm/min,Typical belt speed of activation process 645mm/min
Driving system	The transmission control adopts the frequency converter to drive the frequency conversion motor, which is controlled by the reducer, and the speed is continuously adjustable.
Conveyor structure	The  belt conveyor is driven by sprocket and chain to drive the driving and driven wheels, and makes the mesh belt run through the friction between the driving wheel and the mesh belt. Mesh belt deviation correction devices are installed on both sides of the entrance and exit
Belt cleaning method	Ultrasonic cleaner

5,Atmosphere system

Atmosphere control system		Including air pipe and exhaust system
Air pipes: the range of flowmeter is 48 ~ 480L / min; glass rotameter control
A	Entrance air curtain		Entrance air curtain (divided into three rows of air intake), and the range of each flowmeter is 48 ~ 480L / min
B	Air inlet in heating parts		Supplement of fresh air (intake air is divided into three rows), and the range of each flowmeter is 48 ~ 480L / min
C	Rubber exhaust gas		A set of waste gas collection pipeline and filtration system are set, which is controlled by micro pressure negative feedback, connected with the chimney and has the ability of mixing fresh air; Reduce the pipeline temperature; Pumping capacity ≤ 30m3 / min
D	Air inlet in firing parts		One pipe of intake air (divided into three rows). The range of each flow meter is 48 ~ 480L / min, which is distributed in the last water jacket of the water cooling section
E	Exit air curtain		The exit air curtain (divided into three rows of air intake), and the measuring range of each flowmeter is 48 ~ 480L / min
F	Cooling exhaust		In the air cooling area, the blower blows air, and the exhaust volume is about 50m3 / min
Each atmosphere flow meter displays the actual flow

6,Cooling system:

Cooling mode of water cooling area	The surface of stainless steel cooling jacket is installed with water-cooled coil pipe
Cooling mode of  air cooling section	Forced air cooling with large air volume
Cooling detection	1 point water temperature detection of cooling water jacket
Alarm indication	Low water pressure alarm, overtemperature alarm, exhaust low negative pressure alarm

7,Safety protection:

Belt stop button	Two belt stop button is set at the inlet and outlet end plates respectively. One for belt stop,one for power off.
Alarm indication	Overtemperature, temperature deviation, frequency converter alarm, thermocouple broken, low gas pressure, low water pressure, discharge audible and visual alarm

8,Temperature control system:

Temperature measurement	Each control and detection point is measured independently by K-type thermocouple
Control instrument	It is controlled by imported intelligent regulation module.It has many alarm protection functions, such as PID parameter self-tuning, high temperature upper limit alarm, thermocouple failure indication and so on
Heating control	The heating part is powered by multiple AC contactors in groups to reduce the instantaneous current impact of the equipment on the power grid
Control mode	Solid state relay
Overtemperature treatment	In case of overtemperature in a certain temperature zone, the temperature overtemperature alarm system of the temperature zone will immediately send out audible and visual alarm signals, cut off the heating in the corresponding temperature zone at the same time, and the buzzer will send out continuous alarm sound
Computer control system	DCS (distributed control system) control system is adopted.
	Lower computer, intelligent instrument control, upper computer monitoring
	Friendly man-machine interface, multiple programs are stored, which is convenient for users to edit and call
	Real time display of temperature and alarm status.The data can be stored and printed out.
	Provide furnace temperature calibration function to better fit process requirements