250mm Belt Width Infrared Fast Firing Furnace with Computer Control

• After-sales Service: 12 Months
• Warranty: 12 Months
• Type: PV Heating Equipment
• Certification: CE, ISO
• Structure: Horizontal Type
• Brand: Hengli
• Model NO.: HSH2503-0510Z
• Maximum Temperature: 950c
• Heating Element: Quartz Lamp Heating
• Number of Temperature Zones: 5 Zones
• Transport Package: 5890× 1200× 1350mm
• Specification: 5890*1200*1350mm
• Trademark: HENGLI
• Origin: China
• HS Code: 8514390090
• Production Capacity: 800 Sets/Year

Product Description

1. Typical application fields:

Typical application fields

It is mainly used in the rapid firing process of solar cells

2. Equipment specification and structure:

Code	Name		Length	Explain
A	Total length of equipment		5890mm
B	Entrance /Exit platform		500mm
C	Furnace frame		4890mm
D	Entrance transition zone		350mm	No heating elements, mainly to prevent the furnace mouth overheating, and to prevent the interference of the external environment on the furnace
E	Heating zone		1080mm	3 zones, the temperature range is 200-700 ºC, and the typical temperature range is 400-650 ºC
F	Constant temperature zone		420mm	2 zones, the temperature range is 600-900 ºC, typical 850 ºC
G	Cooling transition zone		490mm	There is no heating element, and a stainless steel cooling water jacket is installed to isolate the heat diffusion in the front temperature zone
H	Forced cooling zone		2300mm	2 sets two-stage finned water-cooled heat exchanger combined with axial-flow fan forced convection cooling chamber, in which one thermocouple is detected to display the temperature of the cooling chamber
I	Exit transition zone		250mm	1 set stainless steel sleeve, mainly to prevent the interference of external environment on the furnace
J	Equipment height		1350mm
K	Layout position of equipment operation panel
Furnace structure		All fiber furnace design, infrared quartz lamp heating
Effective height		30mm
Equipment weight		About 1500kg
Dimensions		5890×1200×1350mm(L×W×H) Excluding chimney, indicator light and foot
Appearance color		Hanging board adopts high temperature spray, color is camel gray computer color, color label:RAL7035

3. Thermal system:

Rated temperature	Service temperature: 100-900 ºC
Maximum temperature	950ºC
Heating element	Quartz lamp heating
heating power	39kW
Heat preservation power of empty furnace	About 19kw
Number of temperature zones	5 zones
Temperature control points	5 points
Inspection point	2 points(cooling zone temperature, water cooling temperature detection)
Thermocouple	K type
Surface temperature rise	<30ºC
Temperature control stability	±3ºC
Temperature uniformity	±3 ºC (constant temperature zone)

4. Transmission system:

Belt width	250mm
Belt model	B151012
Belt material	Cr20Ni80
Maximum load	More than 25kg / m2
Transmission mode	Design of mechanical transmission and large envelop angle adaptive tension
Speed range	10~4000mm / min, variable frequency stepless speed regulation
Driving system	The transmission control adopts servo drive motor, which is controlled by reducer, and the speed is continuously adjustable
Conveyor structure	Belt conveyor device: to drive the driving and driven wheel through chain and sprocket wheel, and then generate the friction force by driving wheel and the belt drive the belt running. There is a belt deviation guide device on the both sides at the entrance and exit.
Cleaning method of belt	Brush cleaning (standard) Ultrasonic cleaning (option)

5. Atmosphere system:

Atmosphere control system		Including air pipe and exhaust system
Air pipe: the range of flowmeter is 10 ~ 95L / min
A	Entrance air curtain		Prevent outside air from entering the furnace
B	Temperature rise and air intake		The chimney in the heating area can help exhaust and air in, and the exhaust valve can be adjusted to eliminate organic waste gas and moisture
C	Free cooling air intake		In the cooling area, the chimney helps to exhaust and air in, and the exhaust valve is adjustable to adjust the flow direction of the atmosphere in the furnace
D	Cooling air intake		One air inlet is set in the middle of cooling transition section to prevent high temperature heat dissipation
E	Exit air curtain		Prevent outside air from entering the furnace
Exhaust system		One exhaust chimney is set in the middle of heating section and one in the middle of cooling section respectively

6. Cooling system:

Cooling structure	The two-stage finned water-cooled heat exchanger combined with axial-flow fan is used for forced convection cooling
Cooling mode	Water cooling combined with air cooling

7. Safety protection:

Emergency stop button	One stop button is set at each end plate of the inlet and outlet. After pressing the button, the mesh belt stops running
Alarm indication	Sound and light alarm for thermocouple broken , temperature deviation, over temperature, belt stop, low air pressure, motor overload, etc
Power failure protection	Installation of manual shaking out device

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 regulator.With PID parameter self-tuning, high temperature upper limit alarm, thermocouple failure indication and other alarm protection functions
Heating control	The heating part is supplied by multiple AC contactors in groups to reduce the instantaneous current impact of the equipment on the power grid
Control mode	Phase shift power regulation
Over temperature treatment	When over temperature occurs in a certain temperature zone, the temperature over temperature alarm system of the corresponding temperature zone will immediately send out sound and light alarm signal and cut off the heating of all temperature zones at the same time, and the buzzer will send out continuous alarm sound
Computer control system (option)	DCS (distributed control system) control system is adopted
	Lower single loop intelligent instrument control, upper computer monitoring
	Temperature acquisition and recording: easy to manage and track the quality, and can call print at any time
	Curve storage and automatic call out: customers can set a variety of use curves for different products, and call them out at any time
	Parameter adjustment: including temperature, control parameters and other adjustable parameters of the lower computer, which can be controlled in the upper computer
	Temperature curve recording and analysis system: regularly measure and analyze furnace temperature and actual temperature curve of workpiece surface