Efficient and Energy-Saving Dust-Free LPG Gas Cylinder Spray Booths, Powder Coating Line/

Product Description

Efficient and energy-saving dust-free LPG gas cylinder spray booths, powder coating line/

1. Powder coating line design

No	Name	Details
1	Workpiece	Gas cylinder
2	Workpiece material	Metal
3	Max. workpiece size	Φ300×H570(mm)
4	Workpiece weight	≤30kg
5	Braced chain	QXT250/50Kg light common chain
6	Machine capacity	2000pcs/12hours
7	Hanging type	One cylinder every two pitch, that means one cylinder per 500mm.
8	Linear speed	2000pcs÷12h÷60min×0.5m/hang=1.4m/min
9	Heating source	Nature gas(LPG)
10	Location area	See layout drawing, beam bottom height 8.5 meters

2. Process flow diagram
This line consists of powder coating chamber, booth, curing bake, suspend conveyor and electric control system.

No	Name	Transit time	Working temperature	Operation
1	Loading		RT	Manual
2	Powder coating		RT	Auto+manual
3	baking	17-18min	180-190ºC	Heated air circle
4	cooling	20min
5	unloading			Manual

3. Curing bake
The drying tunnel consists of three parts: drying tunnel. Heating system and exhaust system.
3.1 Drying tunnel

No	Name	Technical parameter
1	Overall structure	Bridge type
2	No of tunnels	4
3	Size of the inner tunnel	L14×W3.2×H2.1(m). Leg height 2.5meters
4	Thickness of the insulation	150mm
5	Material of the insulation	High quality rock wool board
6	Unit weight of the insulation	100Kg/m3
7	Material of the inner plate	δ0.8 galvanized steel sheet
8	Metarial of the outer plate	δ0.8 color sheet
9	Structure of inner and outer plate	Assembly structure
10	Material of the inner angle plate	δ1 galvanized steel sheet
11	Material of the outer angle plate	δ3 hot-rolled sheet with paint
12	Supporter material of the tunnel	δ3 carbon steel sheet, edgefold with paint
13	Outer temperature of the tunnel	Lower than environment temperature 15ºC
14	Inner temperature of the tunnel	180ºC
15	Drain cracking-off	Top of the tunnel

3.2. heating system: consists of heating chamber, burner, heated air recycling fan, return airway and temperature control system.
(1)heating room: an access door is on the side of the heating chamber for future repairing.

No	Name	Technical parameter
1	Position and number of heating room	Bottom of the bake tunnel, 1 set
2	Heating room configuration	300000 calories, 1 set
3	Inner plate of the heating room	Galvanized steel, δ1
4	Outer plate of the heating room	Cold-roll steel sheet, δ1.5
5	Thickness of the insulation	150mm
6	Material of the insulation	High quality rock wool board
7	Unit weight of the insulation	100Kg/m3
8	Material of the inner angle plate	δ1 galvanized steel sheet
9	Material of the outer angle plate	δ3 hot-rolled sheet with paint
10	Supporter material of the tunnel	δ3 carbon steel sheet, edgefold with paint
11	Structure of inner and outer plate	Assembly structure

(2) burner
1 set, 300000 calories
Gas consumption: 10-15m3/h
Brand: Italian Riello RS34

(3)burning tank
Heat exchanger is used to transfer the heat to heating room, then hot-air blower will bring the heat to the tunnel. Adopts direct-fired heating, the burning tank is stainless steel with high temperature filter.

(4)Thermal cycling fan: adopts special air-cooled centrifugal fan

No	Name	Parameter
1	Model	GCF-630C
2	Rotation speed	1250r/min
3	Air flow volume	13500m3/h
4	Total pressure	900Pα
5	Motor power	5.5KW
6	Fan structure	Impeller is in the heating room
7	Insulation thickness	150mm
9	Impeller material	16Mn
10	No. Of fans	1 set
11	Fans supplier	Shanghai Shuyuan or Kewangda

(5) Air delivery & returning duct

No	Name	Parameter
1	Hot air recycling	Internal recycle, no outer tubes
2	Air delivery type	Under floor air delivery
3	Air returning type	Under floor air returning
4	Duct material	Galvanized steelδ1
5	No of air regulation plate	1 set
6	Material of air regulation plate	Galvanized steelδ1

(6) Temperature control system
Drying tunnel uses digital temperature controller to adjust the temperature automatically, it can display and control the drying tunnel temperature in real-time.
The temperature measurement uses platinum resistor temperature sensor.
The drying tunnel temperature can be adjusted continuously from normal temperature to 200°C.

3.3. Exhaust pipe
The entrance/exit of the drying tunnel on the top equips with exhaust pipe and butterfly valve, it is used for draining the exhaust gas of the drying tunnel.
The material of the exhaust pipe is δ1mm galvanized sheet.

4. Hang type conveyor
Hang type conveyor consist of driving device, tension device, variable-frequency governor, chain, straight conveyor, bend conveyor, temperature flexible conveyor, inspection conveyor and lubrication system etc.
Variable -frequency governor uses Mitsubishi. The speed is 1.4 m/min.
The lubrication system uses automatic oil drop device.
Hang type conveyor equips with 1 set driving device, 1 set weight-loaded type tension device, using frequency to adjust speed.

No	Name	Technical specification
1	Driving device model	QXT-250
2	Driving device quantity	1 set
3	Overload protection for driving device	Adjustable safety clutch+travel switch
4	Driving device power	3.0KW
5	Tension device type	Weight-loaded type
6	Tension device quantity	1set
7	Turning radius of tension device	≥R800(mm)
8	Frequency converter	Mitsubishi 1 set
9	Conveyor chain length	125m
10	Conveyor chain pitch	250mm
11	Hoisting weight of conveyor chain single point	50Kg
12	Production speed	1.4m/min
13	Production speed adjustable method	Frequency control(0.6-2.0m/min)
14	Column quantity,material	Complete set, steel section
15	Bottom plate quantity,material	Complete set, hot-rolled sheet steel
16	Beam quantity,material	Complete set, steel section
17	Diagonal bracing quantity,material	Complete set, steel section
18	lubrication system	Automatic oil drop device 1 set
19	"C" type jig and rotary rack	250 pcs
20	Rotary rack	1set

5. Powder coating system
5.1. Technical parameter

Machine type	Manual
Max. Hang range of the workpiece	W310xH570
Conveyor speed	About 1.4m/min
Type of conveyor	Suspend conveyor
Coating material	Polyester powder and epoxy powder
Color	2 kinds
Powder supplier	Local
Type of coating chamber	Filter type powder coating chamber
Type of powder coating systems	Corona torch
No of powder coating systems	6 sets auto, 1 set manual spraying torch
Type of hoister	Reciprocating hoister
No of hoister	1 set
No of the torch on the hoister	2 sets on left, 2 sets on top, 2 sets on bottom
Suction capacity of coating chamber	11000 m3/h
Required pressure for compressed air	6 - 8 bar , + 0.1 bar
Remaining water in the compressed air	Max. 1.3 g/N m3
Remaining oil in the compressed air	Max. 0.1 mg/N m3
Estimated air consumption for chamber	120 N m3/h
Power supply	220/380 VAC, 50Hz, 3L/N/PE, 3 phase 5 wires
Estimated power consumption for powder coating	Approx. 10 KVA
Estimated power consumption for chamber	15KVA -- powder coating chamber
Requirement for operation condition	Relative humidity<80% Ambient temperature< 30ºC Air speed near the chamber< 0.1 m/sec

6. Package and Delivery
7.Successful Cases
3kg, 6kg, 12kg LPG cylinder powder coating line in Kenya
12kg LPG cylinder powder coating line in Bangaladesh
8. Our Company
Wuxi Longterm Machinery Technologies Co.,Ltd. is an influential manufacturer of coating equipment,environment-protective plating equipments, green environment-protective powder and other specialized coating production.Our company pays attention to product innovation, with 20 invention patents and 119 utility model patents.
Our products are sold to domestic and international famous enterprises:Cheetah car etc., JinGu\Jinfei car parts, Yueling car parts,Electrolux, Siemens, Philip , Atlas,WAM and domestic Launch Vehicle, Haier, Hisense,and exported to Russia, Vietnam, India, Syria , Pakistan, Mexico and more than 20 countries, while is the coating supplier for China Business Aircraft Group in 2009.
Patent And Enterprise Certificate.
Wuxi Longterm coating is national hi-tech company, and has been awarded several honorary title by national and provincial government
9. FAQ
Q: What size of LPG cylinder your machine can powder coating?
A: 6kg, 12kg,15kgs and 50kgs LPG cylinder for cooking and other size according customers' requirement.
Q: About the price
A: The price showing on website is not the real because vary item with different price. The final quotation based on two side (customer and manufacturer) confirmed the technology project afterwards.
Q: Production cycle
A: We are a professional manufacturer of providing the powder coating system. Ensure providing a qualified product and service, we are setting the production cycle is 60 working days. The actually lead time depends on the recent actually production planning.
Q: Service
A:We will offer the whole plant design proposal freely before place order. We are welcome customer visiting the coating line onsite anytime. We will prepare the detailed technology proposal after get approval between customer and manufacturer.
Enable us provide the most suitable proposal for you, please tell me following details:
1.Workpiece size/specification,weight and process requirements(Powder coating or painting?)
2.Plant foundatation drawing,including plant height (the height between factory beam to the ground) and loading&unloading position
3.Heating energy: Electric, LPG or LNG?
4.The environmental requirements of your local government
5.Voltage
6.Daily and annual capacity.

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