DT FGD Slurry Pump

Construction and Design of DT FGD Slurry Pump

Type: Horizontal, single-casing (volute), single-stage, single-suction design with a bearing frame or suspension bracket.

• Impeller Mounting: Threaded connection to the shaft for secure operation.

• Shaft Seal: Equipped exclusively with mechanical seals.

• Bearing Lubrication: Utilizes an oil-lubrication system in the suspension assembly.

• Drive: Flexible coupling connection.

Performance and Material Advantages of DT FGD Slurry Pump

• The pump's performance is driven by its advanced hydraulic design and specialized materials.

• High Efficiency & Rigidity: The fully metallic wetted parts, with their high surface finish and precisely controlled dimensions, allow for minimal internal clearances. This reduces volumetric losses and contributes to a pump efficiency that is over 5% higher than comparable non-metallic pumps. Hydraulic friction losses are minimized, yielding at least a 3% efficiency advantage.

• Superior Material Science: All wetted components—including the impeller, volute, rear liner, and suction liner—are manufactured from a proprietary high-chromium alloy developed in-house. This material is a low-carbon stainless steel with a primarily ferritic structure, which provides:

• Excellent resistance to chloride-induced stress corrosion cracking.

• Enhanced mechanical and tensile strength.

• Outstanding dynamic wear resistance, with an annual wear rate of only 0.008-0.08 mm, ensuring consistent long-term performance.

• Enhanced Durability: The metallic liners possess superior resistance to sliding abrasion and shear forces, significantly outperforming standard non-metallic materials in withstanding prolonged abrasive wear.

Applicable Operating Conditions of DT FGD Slurry Pump

The DT Series is engineered for harsh FGD environments, capable of handling limestone or gypsum slurries across a wide range of parameters:

Shaft Seal Options

The DT Series offers two highly reliable mechanical seal configurations to suit different plant utilities:

• Water-Flushed Type: A double-sided mechanical seal featuring two sets of friction pairs. This design ensures extreme reliability and is capable of achieving a leak-free, drip-tight seal.

• Flushless Type: A unique, self-flushing mechanical seal that utilizes the pumped medium. This design offers high operational reliability while eliminating the need for external flush water, resulting in significant water savings.

Model Designation:

Example: 600 DT-A82 (80)

• 600: Pump discharge diameter (mm)

• DT: Horizontal Desulfurization Circulation Pump

• A: Number of impeller blades (A=5, B=4, C=3, D=2, E=1, F=6, G=7)

• 82: Nominal impeller diameter (cm)

• (80): Trimmed impeller diameter (cm)

Quick Selection Chart of DT FGD Slurry Pump