Enquiry for 50 TPH Steam Boiler for 2500 TCD Sugar

Recently, we received an inquiry from a user about using a 50 TPH Steam Boiler for a sugar refinery. The content of the letter from the customer is as follows:

"Dear Sir,

We propose to install 2500 TCD Sugar Plant near Jejury, Tal. Purandar, Dist. Pune .Technical Specification as enclosed & planned to commission the same in season 2015-16. The general terms & conditions are as:

GENERAL TERMS & CONDITIONS:

1) The scope of work includes design, procurement, manufacture, transport, erection, commissioning & giving performance trial for one crushing season.

2) You have to submit the detailed layout drawing with the offer.

3) The rates should be quoted separately for supply, transport, erection & commissioning of each equipment.

4) The present rate of Excise duty, sales tax, service tax etc, should be clearly mentioned in the offer.

5) The offer should be supported with the past experience regarding such type of projects being executed with performance certificates issued by purchasers for timely delivery, satisfactory performance etc.

6) The minimum possible delivery period & work completion period should be mentioned in offer.

7) After award of offer, you should sign the agreement with us on Rs. 100/- stamp paper duly registered/ notarized. The agreement for supply, timely delivery & guaranteed performance of equipments will be furnished in our format.

8) You have to submit EMD amount Rs-4,00,000.00 of quoted basic value by D.D in favour of Bhuleshwar Sugar Works ltd.” with the offer."

TECHNICAL SEPCIFICATIONS AND SCOPE OF SUPPLY FOR STEAM BOILER

The water tube boiler shall satisfy the following conditions:

	Maximum Continuous Rating (MCR)	50TPH
	Peak Generation for half an hour	110% of MCR
	Steam Pressure at Super heater outlet	45 Kg/cm²
	Steam temperature at super heater outlet at MCR	425 ± 50C / 480 ±50C
	Feed Water Temp. at inlet of feed water tank	850C
	Excess air % theoretical air	Not exceeding 35%
	Flue gas temperature at Air heater outlet at MCR	1600 Approx.
	Type of Grate	chain grate
	Type of Furnace Construction	Membrane panel construction
	Type of Installation	Outdoor
	Fuel	Bagasse
	Quantity	One No. with auxiliary equipments.

NOTE:

1)The scope of work includes all boiler accessories with suitable drive, electric panels, remote push button stations etc.

2)The ID & FD fans should have suitable VFDs.

3)The scope of supply shall be from inlet of feed water tank to outlet of steam distribution header installed appox. 30 mtrs. from boiler.

4)The scope includes the staging, platform, railings, staircases, insulations work etc.

5)Pl. quote for 4250c temp. & 4800c temp. separately.

6)The civil foundation work will be in the scope of factory. However, the supplier shall provide foundation drgs. of each equipment with load data.

APPROVED MAKES FOR CRITICAL EQUIPMENTS

Sr. No	EQUIPMENT		MANUFACTURERS.
1	ELECTRIC MOTORS	KIRLOSKAR/ABB/CROMPTON/ALSTOM
2	VFD’s	KIRLOSKAR/DANFOSS/ABB/SIEMENS
3	PUMPS	KSB / KPL/ MATHER PLATT
4	BOILER FEED PUMP	KSB /	/KIRLOSKAR EBARA/ SUILZER
5	Electric cables	POLYCAB / RPG/ FINOLEX / RAHUL
6	Air Circuit Breakers &	SIEMENS/ L&T/ ABB/ ENGLISH
	Contactors
7	Non IBR  valves (sluice, globe	CALSENS/ KIRLOSKAR/LEADER/
	Right angle & non return,
	Cocks etc)
8	Transformer	KIRLOSKAR   /   ABB/   BHARAT   BIJLEE/
		ALTOMS.
9	INSTRUMENTATION	TEYLOR, BELLS, JN MARSHALL/INDPRO
10	SAFETY VALVES	TYCO SANMAR, BHELL/
	IBR  VALVES
11		CALSENS / KIRLOSKAR/AUDCO/LEADER/FOURESS/BHELL

50t/h chain grate steam boiler model recommendation

DHL SERIES CORNER TUBE CHAIN GRATE BOILER

DHL series corner tube boiler adopts two patents from Xi’an Jiaotong University on fuel combustion effect and heating surface. Coal fuel is conveyed by chain grate into combustion chamber. Single drum and vertical structure in design, DHL series corner tube chain grate boiler often choose field assembly transportation.

Dhl Series Corner Tube Chain Grate Boiler

Two national patents

It adopts two patents from Xi’an Jiaotong University: Flying ash re-combustion equipment based on the high temperature separation; Combined uniform flow design technique of comer tubes boiler flag pattern surface.

80-83% boiler thermal efficiency

DHL series corner tube boiler is the second generation high capacity chain grate hot water boiler, its thermal efficiency can reach to 83%.

Lower breakdown rate

 

The crossgirder grate is adopted, so it has the features of less operation resistance, better grate cooling effects, lower breakdown rate, less fuel leak. And the grates are made by the first-lass professional manufacture.