Shijiazhuang Ruite Pump Co., Ltd. is one of the most reliable manufacturers and suppliers of desulfurization slurry pump in China. Welcome to wholesale durable desulfurization slurry pump made in China here from our factory. All pumps are with high quality and competitive price.
Key Functions
In a desulfurization system, the primary tasks of the desulfurization pump are:
Circulation and Conveyance
Continuously pressurizing the limestone (CaCO₃) slurry at the bottom of the absorption tower and conveying it to the spray layer at the top of the tower.
Chemical Reaction
The atomized slurry comes into counter-current contact with sulfur-containing flue gas (SO₂), triggering a chemical reaction that converts gaseous sulfur into solid gypsum (CaSO₄), thereby purifying the flue gas.
Continuous Operation
Ensuring the continuous circulation of the slurry within the tower to guarantee efficient and stable desulfurization reactions.
Structure and Principles
- Type: The vast majority are horizontal, single-stage, single-suction, cantilever centrifugal pumps.
- Core Principle: The motor drives the impeller to rotate at high speed, using centrifugal force to draw the slurry from the center, pressurize it, and discharge it through the outlet, thereby achieving continuous conveyance.
- Key Components:
- Pump casing / Impeller / Wear Plate: These parts come into direct contact with the medium and constitute the technical core.
- Mechanical Seal: Prevents leakage of highly corrosive slurry.
- Bearing Assembly: Supports the pump shaft, ensuring high-speed operation.
Core Characteristics (Distinguishing Features from Standard Pumps)
The media transported by desulfurization pumps (limestone/gypsum slurry) are both highly corrosive and highly abrasive; therefore, the pumps must possess the following characteristics:
Abrasion and Corrosion Resistance
The medium contain large amounts of quartz sand and gypsum crystals, causing severe erosion of flow-through components.
Materials: Typically high-chromium alloy (A49), duplex stainless steel, and rubber.
High-Efficiency Sealing and Reliability
Features an externally flushed mechanical seal to prevent particles from entering the sealing face and causing failure.
Designed for long-term continuous operation (24 hours/day) with an extremely low failure rate.
High-Efficiency Anti-Blockage Design
Wide flow channels with fewer, thicker impeller blades to prevent blockage by gypsum crystals.
Major Application Areas
Thermal Power Generation
Flue gas desulfurization in power plant boilers (primary application).
01
Steel and Metallurgy
Sintering machines, blast furnace flue gas desulfurization.
02
Chemical / Petrochemical
Sulfur-containing exhaust gas and acidic slurry treatment.
03
Non-ferrous Metallurgy
Acid production systems, flue gas purification.
04
Environmental Engineering
Waste incineration, industrial furnace exhaust gas treatment.
05
Differences from Conventional Slurry Pumps
- Desulfurization Pumps: Emphasize corrosion resistance + wear resistance; handle acidic or alkaline slurries (e.g., limestone slurry).
- Slurry Pumps: Emphasize high wear resistance; handle mostly neutral slag and slurry.
Simply put, desulfurization pumps are specialized centrifugal pumps designed to withstand the dual harsh conditions of "corrosion + wear," making them indispensable key equipment in environmental protection and emissions reduction.
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