FGD Flue Gas Slurry Pump

FGD pump is a single stage and single suction horizontal centrifugal pump.

It is mainly used as the circulating pump for absorbent tower in FGD appliances.It has such features:Wide range flowing capacity, high efficiency, high saving power.

This series of pump is matched by tight structure X bracket which can save much space.Meanwhile our company develops many kinds of material targeted on the pump for FGD.

Structure of the FGD pumps:

Technology Features:

• The pump wet parts are designed by advanced CFD Flowing Simulating Analysis Techniques to ensure its design reliable and its working effective.
• It can change the impeller's position in pump casing by adjusting the bearing assembly to keep the pump working high efficiently all the time.
• This kind of pump adopts back pull-out structure, keeping it easy construction and easy maintenance.It doesn't need disassemble inlet & outlet pipeline.
• Two sets of taper roller bearing is fixed in the end of the pump, the column roller bearing is equipped at driving end.The bearing is lubricated by oil.All these can improve the bearing working condition and greatly enhance its life.
• Mechanical sealing is adopted integrating mechanical sealing which is specialized in FGD technology to ensure its operation.
• Wet part A49 material:
• A49 material is a kind of abrasive resistant and corrosive resistant material, they are widely used for flue gas desulfurization projects in the word，the main composition includes chromium 28-30%， molybdenum 2-3%, nickel 1%, carbon 1%，copper is less than or equalto2%.

• 
  Corrosive resistance characteristic: this is given by the austenitic element. In the 70 degree sulfuric acid solution which contains chloride 0000pom and pH value of 4, the corrosion rate of is 0.5mm/a. In the 60 degree solution which contains 5% nitric, the corrosion rate is 0.5mm/a. In the sodium hydroxide solution at 80 degree and pH value of 13, the corrosion rate is0.5mm/a.
  
  Wear- resistance characteristic: The abrasion performance is given by the chromium carbide on the grain boundary and secondary carbon compounds precipitated on austerity bodies. The abrasion performance is equal to A05, GLH-5, Ni-1. Therefore, A49material is a kind of wear- resistance and corrosive- resistance alloy, which has the characteristic of strong abrasion resistance and corrosion resistance in low pH value environment. Especially suitable for desulfurization  unit in the FGD project in which pH value is greater than or equal to 3.5. A49 material is generally used to manufacture impeller, volute liner and liner insert of desulfurization pump to convey corrosive solid particles in which pH is 3.5- -13. Practice proves that when we use this kind of material to make the impeller of slurry pump, especially the one of the circulating pump in the main absorption tower, the service life can be up to 20000hours. And the site data shows that the actual operating hours is all longer than this data.

• 

• Type	Clear water performance					Panicle max. Size handled occasionally (nun)	Pump weight (kg)
  	Capacity Q (m'/h)	Head H (m)	Speed (r/min)	Max.eff (%)	(NPSH) T (m)
  900DT-F110	4907-14076	8.5-32.7	300-490	88.3	6.5	96	11800
  800DT-A100	5983-12300	12.7-37.2	400-595	87.7	7.8	150	6660
  800DT-A90	4104-10690	7.8-27.8	400-595	86.4	4.3	88	7101
  700DT-A90	3551-8988	10.0-33.8	400-595	86.7	5.6	68	6030
  700DT-A83	2677-6491	8.7-30.2	400-595	85.9	6.0	70	6002
  700DT-B78	3378-7200	10.0-21.8	400-595	84.7	4.3	65	5136
  600DT-A82	1664-5600	5.2-27.8	300-595	88.3	2.2	152	4900
  500DT-A76	1555-3881	9.9-27.9	450-595	76.8	4.5	58	3512
  500DT-A70	1908-4399	9.3-32.5	490-742	76.0	6.0	55	3100
  400DT-A65	1134-3330	8.8-31.1	490-742	80.1	5.2	60	3200
  350DT-A78	720-2865	11.6-51.1	400-740	78.0	3.5	104	3700
  350DT-A65	750-2480	7.3-32.1	400-740	84.7	2.8	92	2300
  350DT-A58	668-1970	5.9-24.3	400-740	82.5	2.8	99	2250
  300DT-A60	574-2384	8.7-52.0	490-989	81.1	4.3	96	2790
  300DT-A50	440-1750	6.1-32.8	490-980	81.7	2.2	80	1160
  250DT-A75	300-1480	20.8-97.5	490-980	77.5	3.0	72	3191
  250DT-A52	333-1220	8.1-42.4	490-980	81.6	2.3	65	1050
  250DT-A45	221-804	5.0-27.0	490-980	68.2	6.5	56	1321
  250DT-B45	265-935	5.7-29.6	490-980	79.8		64	1314
  200DT-B45	136-639	5.5-30.1	490-990	80.8	2.0	51	1750
  150DT-A60	156-704	28.9-150.0	700-1480	70.7	2.1	39	1657
  150DT-B55	139-630	11.3-53.7	490-990	78.1	2.3	56	1540
  150DT-A50	62-279	9.3-44.6	490-980	65.7	2.1	30	1470
  150DT-A40	122-503	11.2-61.2	700-1490	73.1	2.6	40	830
  100DT-A60	71-305	29.1-147.0	700-1480	57.9	2.4	18	890
  100DT-A50	85-360	20.5-100.2	700-1480	69.6	2.5	34	975
  100DT-A45	47-228	14.8-83.5	700-1480	58.7	2.2	22	810
  100DT-B40	61-268	12.0-61.0	700-1480	70.4	1.7	29	620
  100DT-A35	77-323	8.8-45.9	700-1480	73.2	1.9	42	550
  80DT-A36	41-167	8.9-47.1	700-1480	62.4	1.5	16	480

Application of FGD Slurry Pumps:

It can be widely used in the desulfurization system of thermal power plants, aluminum smelters and oil refineries to transport limestone or gypsum slurry.