Lime Slurry Pump
Kingda Lime Slurry Pump has unmatched resistance to abrasion and corrosion, optimized impeller diameter and flow channel, ensuring long-term delivery of high-solid content lime slurry without clogging and sedimentation.
Understanding Lime Slurry Transfer Pumps
Lime slurry pumps are centrifugal pumps specifically designed for conveying lime slurry. They are renowned for their ability to consistently and reliably transport abrasive and corrosive slurries. They are commonly used in construction, industrial wastewater treatment, and flue gas desulfurization applications.
Lime slurry is typically composed of lime (CaO, Ca(OH)₂) and water. Because the slurry is highly corrosive and contains a large amount of solid particles, lime slurry pumps must be abrasion-resistant, corrosion-resistant, and non-clogging.
Components in lime slurry pumps that frequently come into contact with lime slurry are typically made of high-chromium alloys and synthetic rubber. These exceptional abrasion and corrosion resistance enable lime slurry pumps to withstand even the harshest environments.
The Kingda TL series lime slurry pump is constructed from a super-strong, wear-resistant alloy, capable of handling the harshest conveying environments. The metal’s exceptional toughness easily handles the impact of large gravel and hard rock.
The extra-large diameter and wide flow channel design ensure exceptional flow capacity. Even high-density lime slurry can be smoothly conveyed without clogging the pipes or flow channels, minimizing operational costs and maximizing efficiency.
Lime Slurry Pumping | Key Principles and Applications
What is Lime Slurry?
Lime slurry is primarily a slurry composed of calcium hydroxide and water, with the calcium hydroxide primarily suspended in the water in the form of tiny particles. Lime slurry has a pH between 12 and 13, making it a strongly alkaline substance and corrosive.
As the solids content of lime slurry increases, its viscosity also increases, making it prone to sedimentation and significantly more difficult to transport.
Because lime slurry contains a large amount of suspended solids, and these hard particles are highly abrasive, the right method for transporting the lime slurry is crucial.
How to Pump Lime Slurry?
Lime slurry contains a large amount of solid particles, is highly alkaline, and abrasive, and is prone to settling during transportation. Lime slurry pumps play a crucial role in the pumping process, ensuring stable and stable delivery of lime slurry without settling.
- During the initial preparation of lime slurry, lime slurry pumps extract slurry containing high solids content and large particles and transfer it to a screen to remove large particles. The powerful suction of the lime slurry pump effectively prevents settling and lime accumulation at the bottom of the container.
- During the transportation process, the lime slurry pump’s high-speed delivery effectively prevents lime settling in the pipeline. The pump’s high flow rate enables ultra-long-distance transportation. Furthermore, the specially designed impeller and wide flow channel prevent clogging.
- A diaphragm pump and metering pump are installed at the end of the lime slurry delivery system to accurately and stably add the prepared lime slurry to the sewage treatment plant or flue gas desulfurization equipment.
- During the transportation process, scale is prone to forming at the corners of some pipelines or on the bottom of lime slurry containers. During the later circulation, a high-flow, high-pressure lime slurry pump introduces clean water to flush the pipelines and containers, effectively preventing scale and hardened sediment.
In the lime slurry preparation process, the lime slurry pump is not only the power source for transporting the slurry but also a crucial device for preventing lime slurry sedimentation and scaling.
What is Lime Slurry used for?
Lime slurry has a wide range of uses. Its primary function is as a neutralizing agent to adjust pH, but it also has other important applications.
Water Treatment: In industrial wastewater, sewage, and freshwater resources, lime slurry is often used to adjust the pH and flocculate water to meet regulatory requirements.
Construction: In the construction industry, lime slurry is often used in building foundations. Adding lime slurry strengthens and stabilizes the soil, increasing its bearing capacity.
Flue Gas Desulfurization: In power plants and steel mills, lime slurry is commonly used in FGD systems to absorb sulfur dioxide from flue gas.
Mining: In flotation, tailings treatment, and wastewater treatment during mining, lime slurry can be used to neutralize various materials.
Chemical Processes: In chemical plants, lime slurry is often used as an additive to initiate chemical reactions in production processes.
Food Industry: In food preparation, such as dairy products and confectionery, lime slurry can provide both neutralization and purification.
Papermaking: In the papermaking industry, lime slurry is commonly used as a neutralizer and bleaching agent for paper pulp.
Key Features of Lime Slurry Pumps
Abrasion Resistance: The impeller and volute of the lime slurry pump are constructed of high-chromium alloy. Their excellent abrasion resistance when in contact with hard particles in lime slurry allows the pump to easily withstand impacts from sharp solids.
Corrosion Resistance: Due to the strong alkalinity of lime slurry, rubber and polyurethane materials are highly resistant to corrosion from strong alkalis, ensuring long-term, uninterrupted operation of the lime slurry pump.
Clog-Free: Because lime slurry contains a large amount of suspended solids, even gravel, the lime slurry pump features a unique impeller and flow channel design to ensure smooth, non-clogging transport even when encountering large solids.
Long Service Life: Thanks to their high-strength construction materials, lime slurry pumps typically have a long service life, ensuring stable, long-term plant operation.
Types of Lime Slurry Pumps and Their Applications
Centrifugal pumps: Centrifugal pumps use the centrifugal force generated by the rotation of the impeller to transport lime slurry. These centrifugal lime slurry pumps are common, relatively easy to maintain, and are primarily suitable for medium- to high-flow applications.
Screw pumps: Screw pumps use the volume changes of the stator chamber within the pump to move the slurry. They offer a stable flow rate and are suitable for transporting viscous lime slurries at low to medium flow rates.
Peristaltic pumps: Peristaltic pumps use the rolling motion of the pump components to deform the hose, displacing the lime slurry within the hose. This effectively prevents abrasion and structural damage to the lime.
Diaphragm pumps: Diaphragm pumps use the reciprocating motion of an elastic diaphragm to transport lime slurry. The flow rate of diaphragm pumps can be precisely controlled, making them suitable for low-flow applications and precise dosing of reagents.
Why Kingda Lime Slurry Pumps Outperform
Leak-Free Mechanical Seal
Kingda's developed integrated mechanical seal eliminates leakage risk even in harsh environments. Its high wear and vibration resistance ensures a longer service life.
Auxiliary Pump System
To address unstable flow or pressure, a vertical multi-stage auxiliary pump is installed alongside the main pump. This ensures the main pump maintains peak efficiency and exceptional stability.
Optional Materials
Kingda offers a wide range of material options to meet the conveying needs of diverse media environments, including wear-resistant alloys, rubber, and polyurethane, to meet the needs of all lime slurry conveying solutions.
TL Series Lime Slurry Pump
🔸Discharge Diameter(mm): 65 ~ 1000
🔸Capability(m³/h): 50 ~ 18000
🔸Head(m): 15 ~ 50
🔸NPSHr(m): 4.5 ~ 8.5
TLR Series Lime Slurry Pump
🔸Discharge Diameter(mm): 50 ~ 900
🔸Capability(m³/h): 2000 ~ 16000
🔸Head(m): 15 ~ 35
🔸NPSHr(m): 4.5 ~ 8.5
Lime Slurry Pump Curve
How to Select and Maintain Your Lime Slurry Pump？
Choosing the right lime slurry pump requires many considerations. The most important factor is understanding the density and concentration of the lime slurry being pumped, as well as the required flow rate and pressure. The specific material should then be determined based on the abrasiveness and corrosiveness of the pumped material. The following are key points for pump selection:
Slurry Density and Concentration: Excessive slurry density and concentration will make the lime slurry sticky, and excessive particles can easily clog the pump.
Flow Rate and Pressure: Each project has different flow rate and pressure requirements. Choosing the right pump will not only improve pumping efficiency but also maximize its lifespan.
Abrasiveness: When the lime slurry contains a high concentration of hard particles, the lime slurry pump will face extremely high wear resistance requirements. In this case, abrasion-resistant materials should be selected to reduce maintenance.
Corrosiveness: Lime slurry is highly alkaline, placing high demands on the material’s corrosion resistance. Improper pump material selection can exacerbate corrosion, shorten the pump’s lifespan, and increase costs.
Maintenance: As is well known, lime slurry is prone to sedimentation and scaling. A recirculation system within the conveying system can effectively prevent these slurry settling and scaling.
The lime slurry pump should regularly draw clean water to flush the pump and pipeline, wash away the scale in the elbows or corners, and avoid sedimentation in the pipeline or container.
China Best Pump for Lime Slurry Manufacturers, Since 1948
Kingda, known as China’s best lime slurry pump manufacturer, has provided numerous businesses with unparalleled lime slurry delivery systems. Our TL series lime slurry delivery pumps can solve most lime slurry delivery problems.
After decades of development, we have developed the most sophisticated lime slurry delivery solutions. We ensure that our experience provides you with the best delivery solution to minimize your costs.
We have a complete product line of slurry pumps, meaning that if your lime slurry pump experiences a problem, we can provide swift maintenance and replacement parts.
Lime Slurry Pump Spares & Parts
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