The impeller is one of the flow parts of the slurry pump and It is the core part of the slurry pump accessories. The impeller is installed at one end of the pump shaft and directly connected to the pump shaft. It is the main work part when the pump is running. The impeller directly acts on the medium, transfers energy to the medium, causes the medium to rotate at a high speed, and generates kinetic energy.
Impeller type according to the components
The impeller of slurry pump can be divided into closed impeller, semi-open impeller and open impeller. 1. Closed impeller: consists of blades, front and rear cover plates. The closed impeller is more efficient and difficult to manufacture. It is most used in centrifugal pumps. It is suitable for conveying clean water, solutions and other clean liquids with low viscosity without particles. 2. Semi-open impeller: Generally, there are two structures. One is the front semi-open type, which is composed of the rear cover and the blades. The impeller efficiency of this structure is low. In order to improve the efficiency, it needs to be equipped with an adjustable gap seal ring; the other is The rear half-open type is composed of a front cover and blades. Since the same sealing ring as the closed pump impeller can be applied, the efficiency is basically the same as that of the closed impeller. The semi-open impeller is suitable for conveying liquids containing suspended solids such as solid particles and fibers. The semi-open impeller is less difficult to manufacture, lower in cost, and highly adaptable. In recent years, it has been increasingly used in centrifugal pumps for refining and chemical industries, and is used to transport clear water and liquids similar to clear water. 3. Open impeller: an impeller with only blades and blade stiffeners, without front and rear cover plates. The number of open impeller blades is small. The pump impeller is low in efficiency and has fewer applications. It is mainly used to transport high-viscosity liquids and slurry liquids.
Impeller materials
The number of blades of slurry pump impeller is generally 5, some could be 4, 3 and so on. The impeller of the slurry pump directly acts on the slurry, so the wear is quite serious. It must be made of high wear-resistant and corrosion-resistant materials. Generally, the A05 material is used as the main material which also called Cr27 alloy, and there are rubber impellers according to different media. The alloy impeller has stronger adaptability. The alloy impeller must be used when the medium contains sharp-angled particles. Anyway he rubber impeller also has its own advantages. The medium does not contain sharp-angled grains, and the rubber impeller has better resistance to punching.
Precautions for the use of impeller
1. Since the impeller is the most easily worn-out slurry pump parts, pay attention to timely replacement, otherwise,a broken impeller will seriously affect the operation efficiency of the slurry pump 2. Prevent blockage of the impeller flow path during operation. Prevent long fibers from entangled with the impeller, Prevent the slurry solidify and block the impeller after no run for a long time, and check the condition of the impeller before running the pump.
About Qiangda
Shijiazhuang Qiangda Industry Group Co., Ltd. is China's leading professional manufacturer of slurry pumps, sewage pumps and submersible pumps integrating pumps scientific research, design, manufacturing, and sales.
Qiangda Products The products of Qiangda include specific slurry pumps for Shield Tunneling Machine, Sewage pumps, submersible pumps, petrochemical pumps, flue gas desulfurization pumps, dredging pumps, etc., As a big platform Qiangda also offers a series of supporting products such as wear-resistant valves, diaphragm couplings, cyclones, control cabinets, etc. All of products sell well in various places, the market share of slurry pump products ranks among the top in the industry. At present, in China, our company's slurry pump market share has reached about 60%, and the sewage pump market share has exceeded 30%.
Qiangda Service Qiangda could provide various supporting pump products and pump system design and installation services for Metallurgy, Mining, Electric power , Coal, Dredging, Thermal power flue gas desulfurization, environmental protection engineering, sewage treatment, urban water supply and drainage, water conservancy engineering, farmland irrigation, petrochemical, building materials and many other enterprises and fields . Qiangda provides full-process and life-cycle pump solutions. From your project establishment to the after-sales of pump products, we promise to provide the qualified products and services.
Why Qiangda
Long history and Rich experience The factory is build in 1950s and saw the first impurity pump manufacturing, ever since then, the group is devoted into the field of industry pump, which allows the group to accumulate rich experience and could well deal with all pumps problem In the early 1980s, the company has successively introduced the design and manufacturing technologyfrom Germany Ritz Company, Japan Kubota Co., Ltd. etc, The products cover ten series of slurry pumps, submersible pumps and sewage pumps which are with international advanced levels.Mass production capacity has been formed in a relatively short period of time through digestion and absorption.
Application lab and Technology center Qiangda group has the sole impurity pump research lab in China that serves the pump industry, specializing in the research work of pumps performance, wear mechanism, wear-resistant materials and new product development.To make full use of the technology, an independent technology center was set up in the factory, focusing on cooperation with top domestic colleges and universities such as Tsinghua University, a fast product transformation from the latest technology is released. At the same time, from the perspective of sustainable development, the company strictly ensures the proportion of product R&D investment. Which injects impetus to the renewal of products . Now Kingda has also 6 series of nearly 100 varieties of high-efficiency and energy-saving new products. It has embarked a new career on a road of "technology introduction, digestion and absorption, innovation and improvement".
Strong Casting and Manufacturing Capacity Qiangda Group has invested 650 million Yuan in Xingtang County, Shijiazhuang City to build a new R&D, design, and manufacturing base. The plant covers an area of more than 300 acres, with a total construction area of nearly 80,000 square meters. It could produce 3,050 sets of various pumps systems and 1,400 tons of various pump accessories. At present, Xingtang Pump factory, a subsidiary of Qiangda Group, has 378 sets of main production equipment, 73 sets of special use equipment, 500 sets of various advanced test, measurement, and analysis instruments & equipments; along with more than 480 sets of computers, Now all equipment control has basically finished digitization , constitute a complete production process equipment system with strong manufacturing capabilities.
Professional Oversea teams In order to better serve overseas customers, Qiangda establish a new and separatedoversea department in 2021, who will actively explore the international marketrelying on domestic production bases . The service team of the new department has decades' experience in overseas trade. they have a thorough understanding of products and welcome any consultation. Choose Qiangda and pump strong power to your career.
Customized solution for every Pump need
Qiangda group,in line with the concept of serving customers and developing together with customers, provides customized solutions for every slurry pump needs. For years, we learn from the customer and better served them in return.Qiangda Group focus on large scale slurry pumps, pumps strong power to your career.
In terms of equipment quality Provide clients with high-quality products that meet relevant national standards, contract requirements, and customer's design and application requirements. And implement life-long service. A third-party supervision system can be implemented for important products. In terms of delivery Perform the delivery responsibilities on time, and transport in the most convenient way to minimize the time for customers to get the product In terms of technical service Provide users with important technical information for operation and maintenance. Combining with the network and remotely, provide technical and business training for equipment installation, commissioning, operation, and maintenance. When necessary, experienced engineering and technical personnel could be sent to provide on-site technical services in time . After receiving the user's complain of the quality problem , It is guaranteed to reply within 24 hours and provide a solution within 48 hours, and the service will not stop if the user is not satisfied with the solution.
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