CE Approved, Belt Atmosphere Firing Furnace for Dbc / Dcb

• After-sales Service: 12 Months
• Warranty: 12 Months
• Type: Ceramic Heating Equipment
• Certification: CE, ISO
• Structure: Horizontal Type
• Brand: Hengli
• Model NO.: HSA4007-1612ZNO
• Maximum Temperature: 1160c
• Number of Temperature Zones: 16 Zones
• Temperature Uniformity: +-2c
• Belt Width: 400mm
• Transport Package: Wooden Box Iron Bracket
• Specification: 17500 * 1400 * 1800mm
• Trademark: HENGLI
• Origin: China
• HS Code: 8514390090
• Production Capacity: 800 Sets/Year

Product Description

HSA4007-1612ZNO Belt Atmosphere Firing Furnace
1. Typical application fields:

Typical application fields

It is mainly used for high temperature firing, oxidation, copper coating and other high temperature heat treatment in N2 or N2, O2 mixed atmosphere

2. Equipment specification and structure:

Code	name		length	explain
1	Entrance platform		900mm	Including inlet gas collection hood
2	Entrance transition section		1320mm	Including inlet air curtain and heating air inlet
3	Heating zone		4880mm	16 temperature zone, each length is 305mm and the power is 12KW
4	Free cooling section		600mm	Free cooling (heat preservation to prevent heat from spreading to the environment)
5	Cooling section		6500mm	Water cooling
6	Exit platform		300mm
7	Exit transfer platform		3000mm	Forced air cooling zone length is 1000mm
8	Total length of equipment		17500mm
Furnace structure		The structure of large furnace chamber and muffle Inconel 601 are adopted. The muffle adopts corrugated muffle with thickness of 6 mm
Effective height		70mm
Equipment weight		About 8000kg
Dimensions		17500 × 1400 × 1800mm (L × w × h), excluding foundation, chimney and indicator light
Appearance color		Hanging board adopts high temperature spray, color is camel gray computer color, color label: RAL7035

3. Thermal system:

Rated temperature	1130ºC
Maximum temperature	1160ºC
Heating element	Heating module composed of ceramic rod wrapped with  heating wire
heating power	230 kW, including each zone is 14 kW for 1-6 temperature zone and 14.3 kW for 7-16 temperature zone (six filament areas in each temperature zone: top left 1.5KW, top middle 4.15kw, top right 1.5KW, bottom left 1.5KW, bottom middle 4.15kw,bottom right 1.5KW)
Heat preservation power of empty furnace	≤80kW
Number of temperature zones	16 zones
Temperature control points	36 Points (1-6 temperature zone is controlled by single point; 7-16 temperature zone is controlled by 3 points in each temperature zone, and each temperature control point is output by 2 points in proportion)
Thermocouple	S-type thermocouple
Surface temperature rise	<15ºC
Discharge temperature	<50ºC
Temperature control stability	±1ºC
Temperature uniformity	± 2 ºC (constant temperature zone 1100 ºC)

4. Transmission system:

Belt width	400mm
Wire diameter and threading	2.5*3.0
Grid size	10*15
Structural style	Balanced type
Belt material	Cr20Ni80; grid 7 * 12, 2.2 * 2.8
Maximum load	50kg / m2 (excluding belt weight)
Transmission mode	Friction drive with large wrap angle
Speed range	50~300 mm / min, variable frequency stepless speed regulation, digital display
Driving system	The drive control adopts frequency converter to drive motor, which is controlled by reducer, and the speed is continuously adjustable
Conveyor structure	The belt conveyor is driven by chain wheel and chain to drive the driving and passive wheels. The belt is driven by the friction between the driving wheel and the belt. The belt rectifying device is installed on both sides of the entrance and exit
Cleaning method of mesh belt	Integrated dust removal with brush and bag
	Ultrasonic cleaning machine (with drying function)

5. Atmosphere system:

Atmosphere control system		Including nitrogen gas pipe, mixed gas pipe, detection gas pipe, exhaust system
Nitrogen gas path:
A	Inlet air curtain		Nitrogen, 0-200L/min; divided into two channels, each flow switch control flow
B	Rubber discharge gas intake		Nitrogen, 0-100L/min; flow control by flow switch
C	Gas intake of preheating section		Nitrogen and oxygen mixture (nitrogen is controlled by flow switch and air is controlled by mass flowmeter), 0-100L/min, after mixing, it is divided into two channels, and each channel is controlled by flow switch
E	Constant temperature gas inlet		Nitrogen and oxygen mixture (nitrogen is controlled by flow switch and air is controlled by mass flowmeter), 0-200L/min, after mixing, it is divided into four channels, and each channel is controlled by flow switch
F	Cooling gas intake		Nitrogen, 0-200L/min; flow control by flow switch
G	Outlet gas curtain		Nitrogen, 0-200L/min; divided into two channels, each flow switch control flow
Detection gas pipe: oxygen analyzer, switching through solenoid valve
Nitrogen and oxygen mixed gas source (2 points)		Oxygen content ≤ 5ppm
Heating zone		Oxygen content ≤ 15ppm + oxygen content of gas source
High temperature zone 1		Oxygen content ≤ 10ppm + oxygen content of gas source
High temperature zone 2		Oxygen content ≤ 10ppm + oxygen content of gas source
Cooling zone		Oxygen content ≤ 15ppm + oxygen content of gas source
Exhaust system		The inlet and outlet transition sleeves are respectively provided with one exhaust pipe

6. Cooling system:

Cooling structure	Water cooling coil + double stainless steel cooling water jacket structure
Cooling mode	Internal air cooling combined with external water cooling is adopted
Cooling test	5-point water temperature detection of cooling water jacket
Furnace top cooling system	There is a water-cooled coil tube cooling system on the top of the furnace heating section, which is used for external cooling of the equipment to reduce the surface temperature rise.
Inlet and return water system	Under normal conditions, the circulating water system is used for the inlet and return water. When the circulating water fails, the inlet and return water are immediately switched to the urban water supply system
Alarm indication	Low water pressure alarm and over temperature alarm

7. Safety protection:

Belt stop button	One stop button is set at each end plate of the entrance and exit. After pressing the button, the belt stops running
Alarm indication	Overtemperature, frequency converter alarm, low pressure sound and light alarm
Safe heating rate of equipment	≤3ºC/min

8. Temperature control system:

Temperature measurement	Each control point is measured independently by S-type thermocouple
Control instrument	It is controlled by intelligent regulator.With PID parameter self-tuning, high temperature upper limit alarm, thermocouple failure indication and other alarm protection functions
Control mode	Zero crossing trigger mode of solid state relay
Overtemperature 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 the 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 single loop intelligent instrument control, upper computer monitoring
	Friendly man-machine interface, multiple program storage, convenient for users to edit and call
	Real time display of temperature and alarm status.Data can be stored and printed out.
	The computer control system has the function of slope heating, which can effectively extend the service life of muffle tube
	Provide furnace temperature calibration function, better fit process requirements