Slurry Pump Special Pump Casing (HT2200 Material): High-Wear-Resistant Cast Iron Shell, Stable Adaptation, Worry-Free Operation

Core Selling Points: HT2200 High-Wear-Resistant Cast Iron Material , Integrated Optimized Structure, Precision Hydraulic Design

Customized for Medium-Low Concentration Abrasive Working Conditions, Balancing Wear Resistance and Cost-Effectiveness to Ensure Long-Term Stable Operation of Slurry Pumps

I. Focus on Working Condition Pain Points, HT2200 Pump Casing Accurately Breaks Through

In medium-low concentration slurry conveying scenarios, ordinary cast iron pump casings often suffer from insufficient wear resistance, leading to rapid wear of the flow-through surface and decreased pump efficiency, while high-end alloy materials face the problem of high cost. During the operation of the slurry pump, the slurry containing particles such as sand and coal slag continuously scours the inner wall of the pump casing, and at the same time bears a certain pressure and vibration load. The wear resistance and structural stability of the pump casing directly determine the frequency of equipment operation and maintenance.This special pump casing for slurry pumps is integrally cast with HT2200 high-wear-resistant cast iron material, and is directional optimized for medium-low abrasive working conditions. It not only has better wear resistance than ordinary cast iron, but also maintains the advantage of high cost-effectiveness. It is perfectly suitable for common scenarios such as sand slurry, coal mine slurry, and ash slag conveying, solving the dual contradiction of "insufficient wear resistance" and "excessive cost".

II. Core Advantages, HT2200 Material Empowers Excellent Performance

1.High-Wear-Resistant Material, Wear Life Increased by 50%+

The pump casing is integrally cast with high-quality HT2200 wear-resistant cast iron, and undergoes low-temperature aging treatment to eliminate internal stress, with excellent material performance: - Hardness Advantage: Brinell hardness is as high as 220-250HB, which is more than 30% higher than that of ordinary HT200 cast iron. It can effectively resist the scouring wear of medium-low concentration particle slurry, and the wear rate of the flow-through surface is reduced by 50%; - Toughness Guarantee: Tensile strength ≥200MPa, elongation ≥2%, avoiding brittle fracture caused by vibration or impact, and balancing both wear resistance and impact resistance; - Process Adaptability: The material has good fluidity, suitable for precision casting of complex pump casing structures. The flow-through surface is fully formed without casting defects such as sand holes and air holes, ensuring stable operation.

2. Integrated Hydraulic Structure, Dual Advantages of Efficiency and Stability

Adopting an integrated casting structure design, combined with CFD fluid mechanics simulation optimization: - Flow Channel Optimization: The volute flow channel adopts a gradual cross-section and streamlined arc transition, reducing slurry flow resistance and eddy current loss. The hydraulic efficiency is increased by 3-5% compared with the traditional structure, and the energy consumption is lower; - Structural Reinforcement: The wall thickness of the pump casing is evenly distributed, and key stress-bearing parts (such as inlet and outlet flanges, volute head) are locally thickened to enhance the pressure-bearing capacity, with a design pressure of up to ≤1.2MPa; - Dynamic and Static Balance: The pump casing is integrally cast and then undergoes aging treatment and precision machining to ensure the matching accuracy with the impeller and pump shaft. The vibration amplitude during operation is ≤0.08mm, reducing component wear.

3. Precision Machining Process, Reliable Adaptability and Sealing Performance

Adopting resin sand precision casting + CNC machining composite process: - Dimensional Accuracy: The key dimensional tolerance is controlled within ±0.05mm, the roughness of the matching surface is Ra≤1.6μm, and the matching gap with the impeller is accurately controlled between 0.1-0.3mm, avoiding efficiency loss and friction jamming; - Sealing Design: The inlet and outlet flanges adopt a concave-convex surface sealing structure, matched with oil-resistant asbestos gaskets or rubber gaskets, with excellent sealing performance to prevent slurry leakage; - Easy Installation: The pump casing foot bolt holes and positioning spigots are processed and formed at one time, no repeated adjustment is needed during installation, and the positioning with the pump base is accurate, shortening the installation cycle.

4. A Cost-Effective Choice, Controllable Operation and Maintenance Costs

Compared with high-end materials such as duplex steel and wear-resistant alloys, HT2200 material reduces the purchase cost by 40%-60%, and its wear life is 1.5-2 times that of ordinary cast iron, achieving a balance of "low cost + long life". The integrated structure of the pump casing has no vulnerable lining parts, and only regular inspection of wear conditions is required in daily use, with low maintenance costs. It is especially suitable for medium-low concentration working conditions with limited budget but certain requirements for wear resistance.

III. Application Scenarios and Performance Parameters

Application Scenarios

Designed specifically for medium-low concentration and medium-low abrasive slurry conveying, widely used in: - Coal mining industry: Coal slime conveying in coal preparation plants, slurry discharge in coal mines; - Building materials industry: Sand and gravel aggregate slurry conveying, cement kiln ash slag conveying; - Power industry: Thermal power plant ash slag slurry conveying (non-high concentration), fly ash conveying; - Municipal engineering: River dredging (sediment concentration <30%), shield construction mud conveying; - Agricultural water conservancy: Sediment water conveying in irrigation pumping stations, fish pond dredging pump casings.