Slurry Pump Manufacturer

The wearing parts are the most vulnerable parts of the slurry pump. During use, repair and maintenance, special care is required for the wearing parts. UHB slurry pump is a cantilever single-stage single-suction centrifugal pump, which is specially designed and developed for conveying corrosive media containing fine particles. The pump is made of steel-lined ultra-high molecular weight polyethylene, which is a new generation of corrosion-resistant and wear-resistant engineering plastics for pumps. Its outstanding advantage is that it has excellent wear resistance, impact resistance, creep resistance and excellent corrosion resistance among all plastics. So what are the vulnerable parts of a pump and what should be paid attention to? The pump casing of the slurry pump is generally a cast iron part, and the special pump has an inner lining material, which is prone to cracks under the action of mechanical force or thermal stress. When the slurry pump is impacted by cavitation during work or frozen in winter without draining the accumulated water in the pump casing, it is also prone to rupture. If the damage is serious and cannot be repaired, a new pump casing should be replaced The pump shaft of the slurry pump is generally a carbon steel part, but it is also easily damaged due to manufacturing quality, use or installation. The pump shaft may crack, fold, wear the journal, damage the thread, etc., and may also break. If the damage is serious and cannot be repaired, a new shaft should be replaced. The impeller is an important working part of the slurry pump and is made of cast iron. It is also easily damaged due to manufacturing quality and use. The impeller may crack, and the surface may form holes or perforations due to cavitation. The blades may become thinner or wear unevenly due to long-term grinding, or even be crushed by debris. Some defects can be repaired; some defects cannot be repaired, that is, a new impeller should be replaced. The bearing bush of the sliding bearing is generally cast from copper-tin alloy, which has poor wear resistance and is one of the vulnerable parts that are easy to wear and burn out. The bearing bush can generally be repaired (repair) or replaced with a new one. slurry pump manufacturer slurry pump is suitable for non-ferrous metal smelting industry: especially for various acid liquids, corrosive ore slurry, slurry (for filter press), electrolyte, sewage and other media transportation in wet smelting of lead, zinc, gold, silver, copper, manganese, cobalt, rare earth, etc. The chemical slurry pump is a pump that can adapt to various working conditions, such as conveying acid, alkaline clear liquid or slurry; various corrosive slurries in the smelting industry; various dilute acids in the sulfuric acid industry; various sewage in the environmental protection industry, etc. The pump is both corrosion-resistant and wear-resistant, and has a wide range of uses. The average service life of rolling bearings is generally 5,000 hours, but improper installation, long service time or poor maintenance can also cause wear or damage. Except for individual parts of rolling bearings that can be replaced with new ones, the entire part must generally be replaced.      The mouth ring is also called the leakage reduction or wear reduction ring. It is one of the parts that are easily worn in the slurry pump. It can be repaired or replaced with a new one after wear. When replacing a new leakage reduction ring, its inner diameter should be configured according to the outer diameter (outer edge diameter) of the impeller (referring to the wheel with moving blades). If the outer diameter of the impeller water inlet is worn, it can be turned to eliminate grooves and ovals, and then a leakage reduction ring with a reduced inner diameter can be configured. The outer diameter of the impeller water inlet can generally be turned three times.  

Slurry pumps are widely used in industries such as chemical processing, metallurgy, and mining for transporting high-concentration, solid-containing corrosive media. However, during long-term use, slurry pumps often encounter some common failures. Understanding the causes of these failures and how to resolve them can help improve pump efficiency and reduce maintenance costs. This blog will outline several common slurry pump failures and their corresponding solutions. 1. Insufficient Pump Flow Causes: Impeller or flow path blockage, affecting the normal flow of the medium. Air trapped inside the pump body or pipeline, leading to cavitation. Air leakage in the suction line, causing insufficient negative pressure in the pump chamber. Severe wear of the impeller or sealing ring, reducing pump efficiency. Solutions: Regularly clean the pump body and pipeline to ensure no blockages. Fully vent the pump before starting to prevent air from entering the pump body. Check for leaks in pipeline connections and repair any points of air leakage. Replace worn impellers or sealing rings to restore normal performance. 2. Pump Fails to Start Causes: Power issues such as low voltage or poor circuit connections. Foreign objects lodged inside the pump, preventing the pump shaft from turning. Motor failure preventing the pump from running. Mechanical seals are stuck or tightened, hindering rotation. Solutions: Check the power voltage and circuit connections to ensure proper electrical supply. Open the pump and remove any foreign objects or check if the pump shaft is jammed. In the case of motor failure, contact a technician for repair or replacement. Lubricate or replace damaged mechanical seals to ensure smooth rotation. 3. Mechanical Seal Leakage Causes: Mechanical seals are worn or failing, resulting in poor sealing. Improper installation of sealing components, creating gaps. Large solid particles in the slurry causing long-term wear on sealing components. Excessive operating temperatures leading to seal deformation or aging. Solutions: Replace worn or failed mechanical seals to ensure proper sealing performance. Check if the seals are installed correctly and readjust if necessary. Optimize slurry filtration to reduce the impact of large particles on seals. Ensure the pump operates within the proper temperature range to prevent damage to seals. 4. Excessive Vibration and Noise Causes: Damaged or poorly lubricated bearings, leading to increased friction. Misalignment between the pump shaft and motor shaft, causing imbalance. Loose bolts causing instability during operation. Air trapped in the medium, causing cavitation. Solutions: Regularly inspect and lubricate bearings, and replace worn ones when needed. Adjust the alignment of the pump and motor shafts to ensure proper balance. Check and tighten all bolts to prevent instability. Prevent air from entering the pump and causing cavitation. 5. Decreased Pump Efficiency Causes: Severe wear of the impeller or internal pump components, reducing efficiency. High solid content in the medium, increasing the pump’s load. Poor hydraulic design leading to unstable operating conditions. Lack of maintenance over time, causing performance degradation. Solutions: Regularly inspect the internal components for wear and replace damaged parts. Optimize the handling process of the medium to reduce solid particle concentration and decrease pump load. Analyze and adjust the pump's operating conditions to ensure the hydraulic design fits the application. Implement a regular maintenance schedule to keep the pump running at optimal performance. Conclusion Slurry transfer pumps are powerful industrial transport tools, but they can experience common failures during prolonged use. Understanding the causes and solutions to these problems can not only extend the equipment's service life but also improve operational efficiency. Anhui Changyu Pump & Valve Manufacturing Co., Ltd. recommends users conduct regular inspections and maintenance based on actual working conditions to ensure the slurry pump remains in optimal working condition. If you encounter any other issues during the use of your slurry pump, feel free to contact Anhui Changyu Pump & Valve Manufacturing Co., Ltd. for professional technical support and services.