Low pressure thermal fluid boiler biomass heated for hot rolling maching

Low pressure thermal fluid boiler biomass heated for hot rolling maching YLL YLL series 700KW-3500KW biomass  thermal oil heater
1.Designed with horizontal, three passes, all-wet back structure.   2.Fire tubes are surrounded by thermal oil, and these design making efficient up to 76%.  3.Threaded tube: Strengthen the heat transfer, increase the oil steam boiler heat efficiency  4.Big combustion room design: increase furnace heating area, decrease thermal oil boiler size, and reduce the emission of the Nox Corrugated hearth make the oil steam boiler safer.    Features of  YLL  700KW-3500KW biomassthermal oil heater 
·Horizontal three-pass central symmetry low level layout
·Full wet-back structure
·Corrugated furnace
·Full docking welded structure
·Front and rear smoke box double seal structure
·Furnace exit installation of blast doors
·Automatic intelligent control Application of  700KW-3500KW biomass thermal oil heater 
Widely used in chemical industry, plastics industry, coatings and automotive industries, bitumen industry, construction equipment industry, shipbuilding industry, apparel clothing, washing, ironing, the pharmaceutical industry, biotechnology, food industry, sauna and beauty, hotels, restaurants, sports, fitness and other places where need energy.     700KW-3500KW Biomass  thermic fluid boiler inner structure :   YLL series 700KW-3500KW biomass pellets thermic fluid boiler 
 controlling and safety systems 1. The controlling and safety systems are interlocked in an electric control cabinet (ECC). 2. The burning and security operation are controlled by ECC. It has the following basic functions :
Protection program of automatic ignition
Locking and protection program of operation
Protection program of extinction
Protection program of completion
Protection program of water pumps (pressure loss)
Protection program of ignition failure
Protection program of combustion engine malfunction
Protection program of combustion engine flameout
Protection program of gas leakage
3. Alarm system
Sound-light alarm of steam pressure and super-high steam pressure 
Sound-light alarm of high and low limit water level
Sound-light alarm of pressure loss in water pumps   700KW-3500KW Biomass  thermal oil heater technical parameter    

Projects	Units	YLL-700	YLL-1000	YLL-1200	YLL-1400	YLL-2000	YLL-2400	YLL-2900	YLL-3500
rated thermal power	kw	700	1000	1200	1400	2000	2400	2900	3500
rated working pressure	MPa	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8
highest working temperature	℃	320	320	320	320	320	320	320	320
Oil volumn in the boiler	m³	0.55	0.7	0.9	1.1	1.45	1.6	2.2	2.5
Cycle oil volume	m³/h	60	60	80	80	160	160	180	200
pipe diameter	DN	100	125	125	125	150	150	150	200
coal consumption	kgk/h	145	178	220	265	390	465	560	650
thermal efficiency	%	more than 76%				more than 78%
fuel	coal, biomass, pellets, wood chips, wood pellets, biomass pellets, sawdust, solid fuel, dual fuel...etc
transportation weight	t	14.5	15.3	16.8	17.5	20	24.5		37.76

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