industrial slurry pump

Introduction: The Industrial Value of Slurry Pumps‌ Slurry pumps serve as core conveying equipment in industries such as mining, metallurgy, and chemical processing, undertaking the critical task of transporting highly abrasive, high-concentration solid-liquid mixtures. According to 2024 data from the China Heavy Machinery Industry Association, the global slurry pump market has surpassed $5.2 billion, with China accounting for 38% of the market share.   1. Core Knowledge System of Slurry Pumps‌ 1.‌1 Basic Definition and Working Principle‌ 1）Professional Definition‌: A slurry pump (Slurry Pump) is a centrifugal pump specifically designed for transporting slurries containing solid particles. 2）Working Principle‌: The rotation of the impeller generates centrifugal force, imparting kinetic energy to the solid-liquid mixture (Key parameters: Head 30-150m, Flow rate 10-6000m³/h). 1.2 Comparison of Mainstream Types ‌Project Site‌‌ Company ‌Application Scenario Phosphoric acid slurry in phosphate fertilizer production Anhui Changyu Pump And Valve (CHANGYU) Fluoroplastic slurry pumps, corrosion-resistant horizontal centrifugal pumps. River dredging Grundfos Submersible slurry pumps. Mine tailings transportation Shijiazhuang Industrial Pump Factory Vertical submerged pumps, chemical slurry circulation pumps. Blast furnace slag treatment in steel plants Anhui Changyu Pump And Valve (CHANGYU) High-temperature slurry pumps (with cooling system, heat-resistant alloy steel material such as CD4MCu).   3. Key Performance Indicators‌ 1）‌Wear Rate‌: Hard alloy lining with HRC58 or higher 2）‌NPSHr‌: ≤4.5m 3）‌Efficiency‌: Heavy-duty pumps achieve 75-82%   2. Selection Decision Tree‌ 2.‌1 Medium Characteristics Analysis‌ ‌Particle Size‌: μm-level to mm-level ‌Concentration Range‌: 5%-70% wt ‌pH Value‌: Acidic/Alkaline medium ‌2.2 Operating Condition Matching‌ 1）‌98% Concentrated Sulfuric Acid Circulation (80°C)‌: ‌CYF Series (Fluoroplastic-Lined Pump)‌ — ‌CYF80-50-250 2）‌High-Hardness Mineral Slurry (Quartz Sand Tailings, SiO₂ Content >90%)‌: ‌CYH Series (High-Chrome Alloy Pump)‌ — ‌CYH150-400B‌ 3）‌Titanium Dioxide Acid Digestion Filtration (20% Sulfuric Acid + Titanium Slag)‌:Fluorine-Lined Filter Press Pump (PTFE Back Ring on Impeller, Outlet with Safety Pressure Relief Valve) — ‌CYF80-65-160   3. Fluoroplastic Slurry Pump Maintenance Instructions‌ 3.‌1 Daily Operation Maintenance‌ 1） Vibration Monitoring‌ Daily inspection of bearing vibration value (should be ≤4.5mm/s) Abnormal vibration requires immediate impeller balance check 2） Sealing System Management‌ Mechanical seal flush water pressure must be maintained ‌0.1-0.2MPa higher‌ than pump chamber pressure Weekly inspection of seal leakage (normal ≤5 drops/minute) 3.‌2 Periodic Maintenance Standards‌ 1） Flow-Part Inspection‌ Measure fluoroplastic lining thickness every ‌500 hours‌ (wear allowance ≥3mm) Impeller and wear ring clearance should be ‌0.5-1.0mm‌ 2） Lubrication System‌ Bearings: Replace grease every ‌2000 hours‌ (recommended ‌PTFE-based grease‌) Motor bearings: Annual cleaning and oil change 3.3 Special Condition Handling‌ 1）Crystalline Medium Treatment‌ Flush pump chamber with clean water after shutdown (especially when handling crystallizing media) For long-term shutdowns, drain residual liquid and perform drying treatment ‌2）Temperature Control‌ Monitor lining thermal deformation when medium temperature ‌>80°C‌ Avoid sudden cooling/heating (‌

After working in the industry for many years, many companies still confuse mortar pumps and slurry pumps. They think these pumps are the same equipment used to transport coarse-grained materials, just with different names. But is there really not much difference between mortar pumps and slurry pumps? Far from it. Such inquiries often reveal critical technical knowledge gaps in industrial applications.   1. The Difference between mortar pumps and slurry pumps 1: Material composition Mortar pump： Wear-resistant material: ultra-high molecular weight polyethylene (UHMWPE) Molecular chain is 10 times longer than standard polyethylene Corrosion resistance reaches the highest standard of ASTM G65 Applicable to extreme media (pH 1-14), such as desulfurization slurry, hydrochloric acid solution Rely on the elastic deformation of polymer materials to buffer wear Temperature range: -50℃ to 80℃   Slurry pump： Wear-resistant material: high chromium alloy (Cr26-28%) Hardness: HRC 60-65 Resistant to particle impact ≥7 Mohs hardness Flow channel width: 1.5 times wider than mortar pump Can accommodate solids with a diameter of ≤50mm Rely on metal hardness to achieve direct wear resistance Temperature resistance: up to 150°C   2. The Difference between mortar pumps and slurry pumps 2: Design principle   Mortar pump: uses mechanical drive (compressed air starts the piston/impeller) to accurately transport mortar and other mixtures to the construction site. slurry pump: Using centrifugal pump technology, it can quickly separate and efficiently transport mud containing solid impurities.   3. The Difference between mortar pumps and slurry pumps 3: Application scenario 3.1. Mortar pump Applicable to low viscosity, small particle materials: Corrosive media: acid/alkaline liquid, smelting slurry, dilute sulfuric acid, wastewater Particle limit: diameter ≤2mm, concentration ≤30%   Typical use: Desulfurization system circulating slurry (pH 2-5, particles ≤ 0.5mm) Chemical corrosion-resistant transportation (such as hydrofluoric acid, chlor-alkali solution) Building mortar spraying (cement particles ≤ 0.5mm)   3.2. slurry pump Handling high-viscosity media containing large solids: Non-corrosive slurry: ore dressing slurry, sand and gravel mixture, sludge Particle limit: diameter ≤ 50mm, concentration ≤ 60%   Typical uses: Mine tailings transportation (iron slag: 10-30mm particles) Coal washing plant sludge (coal gangue hardness ≥ 6 Mohs) River dredging (sand and gravel mixture with 40% solid content)   4. The Difference between mortar pumps and slurry pumps 4: Performance characteristics As shown in the figure above, the performance difference between mortar pumps and slurry pumps is very obvious: Mortar pump: high head, large flow, corrosion resistance-optimized for corrosive environments. Mud pump: sturdy structure, stable operation under extreme wear conditions-the first choice for high wear environments.   Through comprehensive comparison, The Difference between mortar pumps and slurry pumps is clear at a glance. If you need further help in selecting industrial pumps, please feel free to contact Changyu Pumps and Valves. Our team is always ready to answer your questions with expertise and enthusiasm.

A slurry pump is a centrifugal pump widely used for transporting liquid mixtures containing solid particles (i.e., slurry). Working principle: It relies on the rotating impeller to do work on the liquid, enabling the liquid to obtain energy and thus realizing the transportation of slurry. When the impeller rotates, the liquid between the blades is thrown out under the action of centrifugal force, and a low - pressure area is formed at the center of the impeller, so that new slurry is continuously sucked in, and then the slurry is continuously transported to the destination. For example, during the ore - dressing process in a mine, the ore pulp is sucked into the slurry pump and then transported to the next process through the rotation of the impeller. Structural features: Impeller: It is a key component of the slurry pump, and it has various design forms to adapt to different working conditions. Common ones include closed - type, semi - open - type and open - type impellers. The closed - type impeller has high efficiency and is suitable for transporting relatively clean slurry with small and uniform particles; the semi - open - type impeller can handle slurry with certain particle size and concentration; the open - type impeller can cope with large - particle and high - concentration slurry, but its efficiency is relatively low. Pump casing: It is usually in the shape of a volute. Its function is to collect the liquid thrown out from the impeller and gradually convert the kinetic energy of the liquid into pressure energy, so that the slurry can be transported under a certain pressure. Shaft sealing device: It is used to prevent slurry leakage and air from entering the pump. Common shaft sealing methods include packing seal and mechanical seal. The packing seal has a simple structure, but the sealing effect is relatively poor, and there may be a small amount of leakage; the mechanical seal has better performance, can effectively reduce leakage, but has a higher cost and more stringent requirements for installation and maintenance. Application fields: Mining industry: It is used to transport ore pulp in the ore - dressing process, including various metal and non - metal ore dressing plants, such as copper mines, gold mines, iron mines, coal mines, etc. For example, during the copper ore dressing process, the ore pulp containing copper ore particles is transported from the grinding mill to the flotation machine or other ore - dressing equipment. Metallurgical industry: In metallurgical production, it is used to handle slurry containing solid particles such as waste slag and tailings. For example, the discharge and transportation of blast furnace slag in an iron and steel plant during iron making. Power industry: It is used to transport fly - ash slurry in thermal power plants, etc., transporting the burned fly - ash slag to storage or treatment sites. Coal industry: In the coal washing process, it is used to transport coal - slurry water, etc., realizing the separation of coal and impurities and subsequent processing.