Tailings sludge dredging pump is a heavy-duty centrifugal pump specifically designed for long-distance and high-concentration transportation of tailings slurry produced by mining beneficiation plants. The tailings slurry usually contains a large amount of quartz, feldspar, metal mineral particles, etc., and its pH value may be acidic or alkaline. The solid content rate often ranges from 40% to 75%. It causes extremely strong erosion and corrosion to the flow components of the pump. Different from ordinary dredging pumps, the tailings sludge dredging pump must be strengthened in terms of wear resistance, corrosion resistance, sealing reliability, and low-speed high-torque drive. Its typical applications include: transporting the tailings slurry from the bottom of the concentrator to the tailings pond, recovering tailings from the tailings pond for re-selection or filling, and transporting mortar to the underground filling station. The pump body adopts a double-shell structure (outer pressure-bearing shell + inner replaceable wear-resistant lining), and the gap between the impeller and the casing can be adjusted to compensate for the performance attenuation after wear.

Structural characteristics

1. Structural aspect:
The cantilever single-stage centrifugal pump, with high-strength brackets and simple bearing components connected by bolts, has a simple and reliable structure, is easy to install and disassemble, and allows for adjustment of the impeller clearance.
2. Material aspect:
The heavy-duty flow components (impeller, pump casing) are made of high-chromium cast iron, wear-resistant rubber lining, or tungsten carbide coating, with a hardness of HRC60+, resistant to sediment wear.
3. Performance aspect:
Strong transportation capacity, large flow design, wide flow range (50 ~ 10,000 m³/h), suitable for different scales of dredging projects (such as small waterway dredging or large port expansion). High head performance, single-stage head can reach 50 ~ 150 meters, and some multi-stage series pumps have a head exceeding 200 meters (such as deep-sea dredging).

Application scenario

Tailings sludge dredging pumps play a crucial role in the entire life cycle management of mines:
Tailings transportation: From the bottom of the concentrator in the processing plant to the tailings storage area (concentration range 40–65%)
Tailings recovery: Extracting tailings from closed or currently used tailings storage areas for re-selecting valuable minerals or preparing filling materials
Underground filling: Mixing tailings with cement and other cementitious materials, and transporting them through pipelines to the underground voids for filling
Dry tailings discharge: Transporting high-concentration tailings to dewatering screens or filter presses for dewatering and dry stacking
Tailings pond dredging: Cleaning the sediment deposited in the tailings pond to restore the storage capacity
Phosphate/kalium brine: Transporting brine containing corrosive agents (requiring the use of duplex steel or rubber liners)

OEM/ODM

Material Selection Guide: •
Quartz sand as the main component, pH 6–9 → A05 high chromium (60–65 HRC) •
Containing acidic agents (pH 2–5) → A33 duplex stainless steel or natural rubber lining •
Containing alkaline agents (pH 10–12) → A05 high chromium + alkali-resistant coating •
Fine particles (<0.1 mm) → Polyurethane lining (wear-resistant and low cost) •
Drive selection: Fixed pumping station → Motor (high efficiency, low operation and maintenance costs); Mobile/areas without electricity → Diesel engine (flexible); Underground → Hydraulic motor (explosion-proof, compact). •
Supporting system: Frequency conversion control cabinet, pipeline concentration meter, flowmeter, pressure transmitter, shaft seal flushing water tank, bearing temperature measuring device, remote monitoring module. •
Customized Services: Special flanges (ANSI/DIN/GB), explosion-proof motors (ExdⅡBT4/CT4), high-altitude diesel engines, extended bearing brackets, wear-resistant coating colors, custom nameplates.

Logistics services

Packaging: Customized packaging using coreboard and plywood boxes, featuring a sturdy and shock-resistant structure that precisely fits the dimensions of the slurry pump, ensuring zero damage during transportation and safe delivery to your doorstep.
Payment methods: Visa, Master Card, Western Union, T/T, L/C, Paypal and Alipay.
Logistics and transportation: Cooperating with international logistics companies such as DHL and Maersk, we offer multi-channel delivery solutions including Exw/Fob/Cif, covering 100+ countries/regions.

Faq

Q1: What is the range of your products?
Answer: We produce heavy-duty slurry and dredging pumps, including:
Slurry pumps: Used in mining, mineral processing and tailings.
Dredging pumps: Used for river/sand extraction and dredging.
Desulfurization pumps: For the flue gas desulfurization system in power plants (Ph 2-13).
Ocean dredging pumps: With corrosion-resistant design for seawater.
Custom industrial pumps: Designed specifically for abrasives, high-solid or corrosive media.
Key specifications: Flow rate up to 10,000 m³/h, head up to 150m, solid content ≤ 80% by weight.
Q2: What is your minimum order quantity?
Answer: The minimum order quantity is 1 set (stock model or custom order). Bulk orders (more than 5 units) are eligible for a discount.
Q3: Which payment methods are supported?
Answer: T/T (30% deposit, balance before shipment).
Letter of Credit (irrevocable, accepted by major banks).
Western Union/Paypal (for small orders <$5,000).
Q4: How long is the delivery time?
Answer: Inventory pumps: 7 working days (from factory, standard specifications).
Customized pumps: 40 working days (including design, casting and testing).