China Shijiazhuang Minerals Equipment Co. Ltd Company News

CNSME Pump officially resumed operations on February 5, 2025! As we step into the new year, we look forward to advancing together and creating even greater achievements. Through closer collaboration and innovation, we aim to overcome industry challenges, enhance customer experience, and strengthen our leading position in the market. Let’s write a more brilliant chapter in this era full of opportunities!

A corner of the company's production workshop  

From September 24 to September 26, 2024, the United States will host a global mining exhibition, focusing on cutting-edge technology and innovations in mining and mineral processing. This prestigious event brings together leading mining companies, equipment manufacturers, and technology providers from around the world. CNSME Pump will showcase our latest slurry pump technology, specifically designed for mining applications such as mineral processing, tailings management, and slurry transportation. We look forward to connecting with global clients and partners to explore the future of the mining industry. Visit us to discover innovative solutions for your mining needs!

CNSME will participate in the Mining Show in Las Vegas, USA on September 24, 2024 Las Vegas Mining and Mining Machinery Exhibition (MINExpo) is one of the largest mining machinery exhibitions in the world. It is hosted by the national mining association.

The mining exhibition held in Istanbul, Turkey has successfully concluded, marking a gathering of global mining elites and a vital platform for exploring the prospects and deepening cooperation in the mining industry. At the Tuyap Fair Convention and Exhibition Center, our booth attracted considerable attention and visits from numerous clients, showcasing the strength of our company and products, as well as demonstrating our confidence and determination for the future of the mining industry.   As the main theme of this exhibition, our booth prominently presented the concepts of innovation and cooperation. We showcased the latest mining technologies and equipment, highlighting our company's leading advantages in technological research and development, and manufacturing. Additionally, we displayed customized solutions developed in collaboration with clients to meet their diverse needs and challenges. This model of technological innovation and win-win cooperation received unanimous recognition and praise from clients. Throughout the exhibition, we engaged in in-depth communication and discussions with clients, listening to their opinions and suggestions, and continuously optimizing our products and services. We also held discussions with multiple enterprises and institutions, exploring future cooperation directions and project collaborations. This open and inclusive attitude towards cooperation has earned us more cooperation opportunities and partners. The successful hosting of this exhibition could not have been achieved without the generous support and participation of our clients and partners, as well as the diligent efforts and careful arrangements of the organizers and staff. In the days to come, we will continue to uphold the principle of win-win cooperation, working together with all partners to create a brighter future for the mining industry! The Turkey Istanbul Mining Expo is a platform to showcase innovation and cooperation, as well as mutual development. We look forward to jointly creating a brighter future in our future collaborations with all partners!

China slurry pump supplier is pleased to announce that we will be participating in the mining expo scheduled to take place in Canada from March 3rd to 6th, 2024. The expo will be held at the Metro Toronto Convention Centre and is organized by the Prospectors & Developers Association of Canada. As a key player in the mining industry, we look forward to showcasing our latest products and solutions at this important industry event. The expo will provide us with an excellent opportunity to network with peers, learn about the latest industry trends, and establish business connections. Our team will be on-site during the expo, engaging with industry professionals and attendees from around the world, sharing our expertise and experience. We will be showcasing our advanced technologies and innovative products to meet the evolving needs of our customers in the mining sector. We invite all those interested in the mining industry to visit our booth, interact with us in person, and learn more about our company. We look forward to discussing the future of the mining industry and exploring potential collaboration opportunities together. For more information about our participation in the expo, please feel free to contact us or visit our website. We look forward to seeing you at the expo!

When purchasing a slurry pump, the Slurry Pump Supplier will learn from the customer about the operating environment of the pump and the slurry pumped, etc., so as to recommend the most suitable pump type to the customer to ensure The pump can last longer in its post. This is what we often call slurry pump selection. The following will introduce you to what aspects are related to the choice of slurry pump: 1. First determine which slurry pump to choose according to the working conditions The working conditions mentioned here are understood as application industries, such as mineral processing, coal processing, sand pumping, etc. (This step is very important, and it is also a prerequisite for selection) 2. Flow and head are the two most basic parameters for pump selection: a: Preliminarily determine the general situation of the pump through the working conditions, such as which series model or whether to consider the material, etc. b: After determining the series model of the pump, read the performance curve through the flow and head to determine the specific model and size of the pump. c: Read the curve, calculate the power: The parameters that must be known in the calculation of the shaft power of the pump include flow rate, head, efficiency, and slurry specific gravity; efficiency (η) is determined by the flow rate and head, which can be read out by reading the performance curve; What cannot be provided is only through experience points. Generally (between 1-2), an estimated value will be given to calculate the power during technical calculation. d: Calculated shaft power P=m*g*h/η Its derivation formula: P=ρ*Q*H/102η (pay attention to the use of safety factor in the actual calculation) e: motor power, the motor power which is the nearest and larger than the shaft power is taken as the final motor power by the shaft power. More parameters: working condition flow head. Slag specific gravity. The specific gravity of solids. concentration. Ph temperature. According to the basic process of A, except that in step C, the specific gravity parameter of the slurry is directly provided by the customer, or the specific gravity of the slurry is calculated by the specific gravity and concentration of the solid. The weight concentration generally mainly considers the degree of abrasiveness of the slurry. For a certain kind of slurry, the higher the concentration, the higher the abrasiveness will be, and the higher the specific gravity of the slurry. Therefore, we have the concept of Heavy-Duty Slurry Pumps, neutral, and light-duty slurry pumps, which is based on the content of the slurry. There is no strict limit. Ph value is one of the material factors that we judge to select the overcurrent parts of the pump (generally, the pH value of 5-12 considers the range of metal overcurrent parts, and the rest of the range considers rubber or other special materials. Here is also the theoretical numerical range that cannot be dead. set, to be flexibly applied); Temperature is also one of the factors to determine whether the material can be used. Generally, the temperature is a factor that is rarely considered in most cases, but sometimes there are special conditions that require temperature. 3. Detailed parameters Working conditions, flow, lift the specific gravity of the slurry, specific gravity of solids, the concentration of pH, temperature, D50, D80, pipeline (pipeline, elbow, valve, taper (contraction, expansion), viscosity, etc. It is still the basic process according to the first, but in this kind of detailed parameters, it is generally the bidding project, or the client is very special so that so many detailed parameters can be provided. In general, the parameters that can be provided to the two are already detailed. For some large projects and large bids, special design units or departments will provide customers with detailed data, so it is possible to provide three levels of detail. In fact, this detailed parameter is mainly to increase the parameters of the pipeline, and the pipeline is the parameter of calculation (dynamic lift). Generally, many customers cannot provide detailed pipeline conditions, or the pipeline is simple, so they are ignored and directly provide a The head is only the head, so we don’t need to forget it, but once the detailed pipeline is provided, we need to calculate the dynamic head by ourselves. The specific calculation of the dynamic head is relatively complicated, but there are ready-made formulas to apply. For slurry pump selection, please contact CNSME – a Slurry Pump Manufacturer from China. welcome letter sales@cnsmepump.com !

We offer a wide range of Sand Dredge Slurry Pumps that can be used to pump sand. A mixture of sand and water with up to 70% solids by weight is pumped. Sand and gravel are handled by pumping a mixture of liquid and particles of sand and gravel. A sand pump can be used for a variety of tasks, including sand and gravel extraction, river dredging, harbor and marine construction, beach reclamation, and filling Geotubes. Sand pumps have multiple applications, which you can read about below. Sand and Gravel Mining One of the most popular methods of sand and gravel extraction is by dredging the river beds or the seabed. Sand is in great demand because it is used in concrete construction and for hydraulic fracturing (fracking) in oil or gas extraction. Our sand pumps are very successful in these applications. Harbor Maintenance Frequently, the seabed of harbors and marinas is raised due to sea currents and sedimentation in upstream effluents, making boat access difficult. Our sand pumps as well as our remote-controlled minidredges and cable dredges are convenient for harbor cleaning. We offer a wide range of dredging pumps and accessories, you can find descriptions in our product section. In our section Slurry Pump Basics, you can learn more about sand pumps. We can help you to choose the size of sand pump that best adapts to your requirements. We have a wide selection of Sand Dredge Slurry Pumps. We can provide sand pumps alone, packages that could be installed on existing dredges, and complete pumping solutions like remote-controlled dredges and cable dredges.

During operation, there are four types of common failures of slurry pumps: corrosion and abrasion, mechanical failure, performance failure and shaft sealing failure. These four types of failures often affect each other. For example, the corrosion and abrasion of the impeller will cause performance failure and mechanical failure, and the damage of the shaft seal will also cause performance failure and mechanical failure. 1. Bearings Overheated A. Too much, too little or deterioration of lubricating grease/oil will cause the bearing to heat up, and the appropriate amount and quality of oil should be adjusted. B. Check whether the pump -motor unit is concentric, adjust the pump and aglign it with the motor. C. If the vibration is abnormal, check whether the rotor is balanced. 2. Reasons and solutions that may causenon output of slurry A. There is still air in the suction pipe or pump, which should be filled with liquid to discharge the air. B. The valves on the inlet and outlet pipeline are closed or the blind plate is not removed, then the valve should be opened and the blind plate removed. C. The actual head is higher than the maximum head of the pump, a pump with higher head should be employed D. The rotation direction of the impeller is wrong, so the rotation direction of the motor should be corrected. E. The lifting height is too high, which should be lowered, and the pressure at the inlet should be increased. F. The debris is blocked the pipe or the suction pipeline is small, the blockage should be removed and the pipe diameter should be enlarged. G. The speed does not match, which should be adjusted to meet the requirements. 3. Reasons and solutions for insufficient flow and head A. The impeller is damaged, replace it with a new impeller. B. Too much damage to the sealing ring, replace the sealing ring. C. The inlet and outlet valves are not fully opened, they should be fully opened. D. The density of the medium does not meet the requirements of the pump, re-calculate it. 4. Reasons for serious seal leakage and solutions A. Improper selection of sealing element materials, replace suitable elements. B. Serious wear, replace the worn parts and adjust the spring pressure. C. If the O-ring is damaged, replace the O-ring. 5. Reasons and solutions of motor overload A. The pump and engine (output end of the motor or diesel engine) are not aligned, adjust the position so that the two are aligned. B. The relative density of the medium becomes larger, change the operating conditions or replace the motor with suitable power. C. Friction occurs in the rotating part, repair the friction part. D. The resistance (such as pipeline friction loss) of the device is low, and the flow will become bigger than required. The drain valve should be closed to obtain the flow rate specified on the pump label.

Pump Knowledge -- Commonly used shaft seal types of slurry pumps In the classification of pumps, according to their slurry delivery conditions, we refer to pumps suitable for transporting liquids (mediums) containing suspended solids as slurry pumps. At present, the slurry pump is one of the indispensable equipment in various technological processes such as ore beneficiation, coal preparation, desulfurization, and filter press feeding. As people pay more attention to environmental protection, the sealing of slurry pumps is also being paid more and more attention. There are three main types of shaft seals for slurry pumps: packing seal, expeller seal, and mechanical seal. These three types of shaft seals have their own advantages, which are introduced as follows: Packing Seal: The packing seal of the slurry pump relies on the soft and hard running-in between the packing and the shaft sleeve to achieve the sealing effect. The packing seal needs to add shaft seal water, the pressure of which must exceed the slurry pump discharge pressure. This sealing method is easy for Replacement and is widely used in ore dressing plants and coal washing plants. Expeller Seal: The expeller seal of the slurry pump relies on the pressure generated by the expeller to achieve the sealing effect. This sealing method is employed when the user is short of water resources. Mechanical Seal: The mechanical seal relies on the close contact between the rotary ring and the static ring in the axial direction to achieve the sealing purpose. The mechanical seal can prevent water from leaking and is especially popular in major domestic concentrators and power plants. However, it is necessary to protect the friction surface to avoid abrasion during installation. Mechanical seals are generally divided into single mechanical seals and double mechanical seals. At this stage, we recommend the single mechanical seal with flushing water inmineral separation plants. This type of mechanical seal has been widely used. Although mechanical seals without flushing water are also recommended by mechanical seal manufacturers, they are not ideal in field applications. In addition to the above three commonly used shaft seals, there is also a shaft seal, which is called "L"-shaped shaft seal in this industry. This kind of shaft seal is generally used in large or huge slurry pumps, but is rarely used in small and medium-sized slurry pumps. Therefore, in the selection of the slurry pumps, not only the pump performance specifications must be considered, but the selection of the shaft seal is also very critical. Selecting the suitable shaft seal for slurry pumps, based on the characteristics of the transported medium at site and the working conditions, will extend the reliable operation time of the pump and reduce the down time caused by the replacement of shaft seal. In this way, not only the total ownership cost is very much reduced, but also the working efficiency is greatly improved.  

Pump knowledge -- Slurry pump concept and applications 1.Concept of pump: all machines that are used to lift liquid, transport liquid, and increase the pressure of liquid can be called “PUMP” 2. Slurry pump: the pump that transports mixture of water and solids particles which contains dross. Speaking from their principle, Slurry pumps produced in Shijiazhuang China are centrifugal vane pumps. 3. Applications of Slurry Pumps: 1) This type of slurry pump is mainly used for slurry transportation in converter dust removal water system, blast furnace gas washing water system, continuous casting turbid water system and steel rolling turbid water system in iron and steel plants. 2) In the power industry, it is used for flue gas desulfurization systems and ash removal systems. Moreover, larger slurry pumps have been well used to act as the desulfurization main circulation pumps, for which, along with the dredging pumps mentioned later, the discharge diameters have been achieved 1 meter in China, and they all work well. 3) Slurry pumps are also widely used for the transportation of pump which contains abrasive solids in mining, metallurgy, coal, and environmental protection industries, such as the slurry pumping work in Metallurgical Concentrator, coal sludge and heavy medium transportation in coal washing plants, and river dredging etc.. 4) In the chemical industry, some corrosive slurries containing crystals can also be transported. At present, about 80% of the applications of small and medium slurry pumps are used in concentrators in the mining industry. 5) In the field of seawater sand selection industry, the application of slurry pumps have also been well-known and recognized by the customers. Due to the habit of some industries, slurry pumps are called sand pumps in the seawater sand selection industry, and dredging pumps in the the river dredging industry, where there are super-large slurry pumps in use, which are used on super-large dredgers. But in terms of the structural characteristics and the slurry transported by the pump, they can all be called slurry pumps.  

16 Units of Heavy Duty Slurry Pumps 6/4D-AH ready for shipment, will be heading to Europe.  For more information about this model of pump, pls click the below link:  http://mao.ecer.com/test/centrifugal-slurrypump.com/sale-13376444-6-4-mining-industrial-heavy-duty-slurry-pump.html