Mesh Belt Sintering Furnace

• Customization: Available
• After-sales Service: 12 Months
• Warranty: 12 Months
• Certification: ISO
• Structure: Horizontal Type
• Brand: PV Firing Furnace
• Heat Preservation Power of Empty Furnace: 55kw
• Maximum Temperature: 450c
• Heating Power: 156kw
• Temperature Control Points: 36 Points
• Transport Package: Wooden Box Iron Bracket
• Specification: 17000*3300*2000mm
• Trademark: HENGLI
• Origin: China
• HS Code: 8514390090
• Production Capacity: 300set/Year

Product Description

,Typical application fields

Typical application fields

Mainly used for annealing heat treatment process of solar cell glass substrates under air atmosphere conditions

2,Equipment specification and structure:

Code	Name		Length	Note
A	Total length		17000mm
B	Load/ unload table		1500mm	1350±50mm The length of load and unload table is the same, and the height from the ground is 1350 ± 50mm
C	Furnace frame		14000mm
D	Entrance vestibule part		350mm	Including air curtain and Rubber discharge air intake
E	Entrance insulation part		650mm	Ceramic fiber material insulation transition,including exhaust pipe
F	Free cooling part		7800mm	6 temperature zones,the length of each zone is 1300mm, and power of each zone  is 26 kW. Using upper and lower heating mode.
G	Free cooling part		2600mm	No heating element, use thermal insulation material
H	Cooling part		2600mm	Water cooled coils
I	Equipment height		2000mm	Excluding chimney and foundation height
J	Equipment operation panel position
Chamber structure		Adopting stainless steel inner liner structure, the upper furnace body can be raised
Effective height		50mm
Furnace weight		About 18000kg
Dimensions		17000×3300×2000mm(L×W×H),excluding foundation, chimney and indicator light
Appearance color		The frame color is dark gray, with color number RAL7043; The hanging board adopts high-temperature spray molding, and the color is white (color code RAL9016)
Glass specifications		2100×1200×2.5-3.2mm;
Special requirements		The penetration between the roller and the furnace body needs to be effectively sealed to reduce gas leakage.
		Install photoelectric sensors at the entrance, exit, and middle section of the furnace body to detect the operating status of the glass.

3,Thermal system:

Rated temperature	350ºC
Maximum temperature	450ºC
Heating element	Special heating module
Heating power	156kW
Heat preservation power of empty furnace	≤55KW
Number of temperature zones	6 zones
Temperature control points	36 points (6 points per temperature zone for temperature control)
Thermocouple	K type
Surface temperature rise	<35ºC(excluding entrance and chimney)
Temperature control stability	±1ºC
Temperature uniformity	±3ºC(Constant temperature zone, glass surface with the same furnace cross-section)

4,Transmission system:

Effective width of roller table	2550mm
Roller material	Quartz ceramic
Maximum load	Product weight<20kg
Transmission mode	Roller table type
Speed range	400~4000mm/min
Drive system	The transmission control adopts a servo motor, which is controlled through a reducer, and the speed is continuously adjustable
Transmission structure	The roller conveyor device is driven by sprockets and chains to rotate the main shaft. The main shaft and each roller bar are driven by a belt to rotate the roller bar

5,Atmosphere system:

Atmosphere control system		Including air inlet pipes, exhaust system
Air inlet pipes: Glass rotor flowmeter control, the range of firing discharge assisted flow meter is 20~190L/Min, and the range of other flow meters is 28~280L/Min
A	Entrance air curtain		Entrance air curtain (divided into 5 pipes of air intake), with each flow meter measuring range is 28~280L/min
B	Rubber discharge air inlet		Fresh air replenishment (divided into 5 pipes of intake), with each flow meter measuring range is 28~280L/min. (Gas inlet preheating, the preheating temperature of 5 pipes can be controlled separately)
C	Auxiliary exhaust gas inlet		Wenturi auxiliary exhaust air intake (divided into 5 pipes of air intake), with each flow meter measuring range of 20-190L/min
D	Firing air inlet		Oblique intake into the furnace (divided into 5 pipes of intake), with each flow meter measuring range of 28-280L/min, distributed in the water-cooled section, mainly used to control the airflow direction
E	Exit air curtain		Exit air curtain (divided into 5 pipes of intake), with each flow meter measuring range of 28~280L/min
Each atmosphere flow meter displays the actual flow rate

6,Cooling system:

Cooling mode

Water cooling, the cross-sectional direction of the furnace is divided into three areas for cooling control, and the water flow rate in each area can be individually controlled to ensure temperature uniformity during cooling

7,Safety protection:

Belt stop button	One stop button is set for each entrance and exit end plate. After pressing it, the belt stops running
Alarm indication	Overtemperature, temperature deviation, servo alarm, low air pressure, low water press and parts overrun ureaudible and visual alarm

8,Temperature control system:

Control instruments	Adopting imported intelligent module control. It has multiple alarm protection functions such as PID parameter Self-tuning, high temperature upper limit alarm, thermocouple failure indication, etc
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 zero crossing
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 (option)	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