Transitioning from low-density slurry transport to high-yield solid-liquid separation and paste backfill system optimization.
In modern mineral processing plants, sustainable disposal and recycling of mine waste are paramount. A Tailings Concentration Pump is engineered to handle highly concentrated underflow from thickeners, clarifiers, and dewatering cyclones. Traditional systems relied on low-viscosity centrifugal slurry transport, consuming vast amounts of fresh water and leaving significant environmental footprints.
Today, industry regulations demand paste backfilling and dry stack disposal. This paradigm shift requires pumps capable of handling high-density, non-Newtonian fluids containing solid concentrations exceeding 60-70% by weight. Selecting the optimal manufacturer requires an evaluation of hydraulic efficiency, wear resistance, total cost of ownership (TCO), and system design support.
"By utilizing high-performance concentration slurry and ceramic pumps, modern operations reduce carbon emissions and maximize process water recovery, aligning directly with global ESG mandates."
As a leading manufacturer of advanced heavy-duty pump systems and air systems, Shandong Zhangqiu Blower Co., Ltd. (ZCBC) integrates state-of-the-art solid-liquid separation equipment. By pairing our proprietary high-pressure Roots blowers with specialized slurry and ceramic pumps, we deliver complete environmental engineering systems.
Our tailing concentration loops utilize advanced multi-stage centrifugal blowers and vacuum pumps (such as the LRA Water Ring series) to optimize filter cake moisture reduction. By optimizing aeration inside slurry basins, we prevent settled blockage, ensuring a consistent, high-density paste feed for pump discharge.
Shandong Zhangqiu Blower Co., Ltd. (Formerly name: Shandong Zhangqiu Blower Works) is a company with over 50 years' blower design, manufacture technology and experience. We set up two Sino-Japanese Joint-ventures and one USA branch that of 1st company in China blower industry establishing oversea branch. We are the leading enterprise in Zhangqiu local industry and main product-Roots Blower's market occupancy is top-ranked in China blower industry.
Overall developing strategy: "Develop main business, pioneer new fields and innovate, cooperate to be a great company". Working concept: "Do the best". Now we are a modern company integrated the design, manufacturing and sales on products of: Roots Blower, Centrifugal Blower, Fan, Industrial Pump, Pneumatic Conveying System, Electrical Equipment, MVR Evaporation, Concentration and Crystallization system, Waste Water Treatment Product and Service and etc.
In 2005, we moved to newly built high-standard modern industrial park. This new industrial park covers an area of 430,000 m2 with complete facility and magnificent office building providing wide developing space for cooperation with oversea company and great-leap-forward development of us.
In July, 7th, 2011, the company was publish listed on Shenzhen Stock Exchange center. Stock code: 002598. This is a great development milestone of us. In 2020, the parent company of Zhang Drum will realize operating income of 1.5 billion yuan and profit of 150 million yuan (including Zhang Drum and its participating holding companies).
Geographic Footprint: ZCBC operates 20 holding companies with four manufacturing bases in Wuxi (Jiangsu), Dongguan (Guangdong), Chenzhou (Hunan), and Jinchang (Gansu), along with four dedicated R&D centers in Beijing, Shanghai, Shijiazhuang, and Wuxi.
Years Engineering Experience
Shenzhen Stock Code
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Key indicators, material configurations, and engineering criteria for international mining operations.
Handling fine, abrasive particles like copper, gold, or iron tailings requires superior hardness. Silicon carbide ceramic pumps (e.g., our TZJK-TD series) outlast standard high-chrome alloys in highly acidic or corrosive media, increasing runtime by up to 2-3 times.
Pumping underflow with high yield stress requires optimized impellers and wide-flow passage geometries. This prevents cavitation, reduces shear strain on flocculants, and maintains high efficiency even during variable slurry concentration inputs.
Water-conserving mine sites demand low-flow or glandless water seals. Heavy expeller seals combined with mechanical seals eliminate dilution of concentrated slurry, protecting down-stream filtering and paste operations.
“ZhangGu company is a large-scale professional manufacturer of Roots blower, is the executive director of the China General Machinery Industry Association, China General Machinery Industry Association fan branch vice president of the unit, China International Turbomachinery Industry Alliance Council executive director of the unit, the main drafting unit of the national standards of Roots blower.”
With over 30 years of specialized manufacturing experience, Shandong Zhangqiu Blower Co., Ltd. (ZCBC) provides high-efficiency, durable solutions for wastewater treatment, mining, chemical, and power industries. ZCBC also offers turnkey engineering services, including MVR systems, water treatment, and O&M. Our products are trusted in 50+ countries with strong performance and global support. Certified by ISO and CE, we combine technical innovation with quality manufacturing to deliver reliable, energy-efficient solutions worldwide.
The dominant product Roots blower domestic market share has been ranked first in the industry. The company continues to advocate technological innovation, the creation of Zhangqiu City, the first provincial-level enterprise technology center, mainly for the Roots blower (Roots vacuum pump) and its supporting products; multi-stage centrifugal blower, single-stage high-speed centrifugal blower and its supporting products; centrifugal ventilator; slurry pumps, desulfurization pumps, and other industrial pumps; feeder, splitter valves, and other pneumatic conveying equipment; electrical equipment, such as research and development, production and sales of products.
The company has strong scientific and technological research and development strength, advanced processing and testing equipment, design, scientific research, development, testing, testing capacity, in the domestic machinery industry leading level. The company has the domestic first-class product development and design center, all kinds of development, analysis instruments and equipment, as well as a variety of physical performance index test equipment, etc., with nearly 100 sets of Jingda diluted equipment, including CNC machining centers, five-axis machining centers, three-axis measuring instrument, CNC machine tools, ultrasonic flaw detector imported from Japan, Germany and other countries and other internationally advanced processing and testing equipment, with high-precision machining level. Magnificent modernization of machining, production and manufacturing scale.
The company also has the world's most advanced product life cycle management PLM system, computer-aided manufacturing CAM technology; the use of computer-aided process design CAPP, CNC technology CNC, computer-aided testing CAT and other information technology, to improve the accuracy of product manufacturing, shorten the product design and manufacturing cycle.
Combining fluid transport, air agitation, and separation technology into a single, cohesive workflow.
A high-efficiency concentration pump operates as part of a larger, integrated system. The tailings slurry first enters a high-rate thickener. Here, our high-volume roots blowers and centrifugal blowers provide low-pressure air to facilitate slurry agitation, preventing premature settling of solids and ensuring uniform density.
Once thickened, the slurry is extracted using heavy-duty slurry pumps (such as our TZJ or TZJK-TD ceramic slurry pumps) and fed to filtration presses or vacuum dewatering units. Our LRA water-ring vacuum pumps maintain constant, high vacuum levels, reducing moisture in the filter cake, which is critical for dry-stack tailings disposal.
Our technology roadmap focuses on three main objectives:
In recent years, the company has a number of proprietary technologies such as countercurrent cooling, fan noise reduction, fan anti-sticky wear, two-stage tandem, fan intelligence, special sealing, grease lubrication, twisted-leaf impeller design, etc. It has been authorized with 69 patents, among which 5 are invention patents, and has been granted with 2 copyrights.
The company is a third-level enterprise for safety production standardization, passed ISO9001 quality system certification, ISO14001 environmental management system certification, ISO50001 energy management system certification, ISO 10012 measurement management system certification, occupational health management system, and the relevant products have passed the Safety Mark for Mining Products, CE certification, energy-saving product certification, and national mandatory product certification (3C).
Through the implementation of a series of incentives for scientific and technological talents to set up a broad stage to display their talents, the company has a strong scientific research team composed of experts enjoying the State Council's special allowances, provincial and municipal government allowances, engineering and technology researchers, Jinan City, “5150” project to introduce the doctorate, senior and middle-level experts. The company has set up a “postgraduate workstation”, in addition, the company has hired more than 10 domestic and foreign experts, cultivated and driven out of the “top technical talents, academic leaders” and a number of technical backbone.
At the same time, the company has established close contact with Tsinghua University, Xi'an Jiaotong University, China University of Mining and Technology, Shandong University and other domestic famous colleges and universities, which provides a reliable technical backing for the company's future technological innovation work. Everyone in ZhangGu Company has the spirit and attitude of not accepting defeat and fighting for the first.
24-Hour Design Support: Our team of expert design engineers provides detailed 3D layouts and CAD drawings within 24 hours. Customers can send us drafts or system specifications, and our engineering team will build optimized, plant-ready files for configuration.
In order to better cope with the changes in the international market, a wide range of international trade, chapter drum company set up a foreign trade company, and set up a branch in the United States, set up a bridge to contact with various countries in the world. Our industrial pumps, blowers, and vacuum systems are exported to over 70 countries, including the United States, Germany, and Italy.
Corporate culture is the soul of the development of a large enterprise and a reflection of the management level of an enterprise. The successful construction of a corporate culture shows that it is successful in management and the greater the development potential of the enterprise. It includes many aspects, such as work concept, development strategy, corporate style construction, system construction, etc.
“Cohesion produces strength, unity brings glory. Zhanggu people struggle hard, are flourishing, pioneering, innovative, and fruitful.”
Expert answers regarding tailings concentration, slurry pump operations, and engineering specifications.
A: Ceramic slurry pumps (such as our TZJK-TD series) utilize silicon carbide linings which offer exceptional hardness (second only to diamond) and chemical stability. They resist both mechanical abrasion from sharp tailings particles and chemical corrosion from acidic mineral processing fluids, resulting in a service life 3x longer than high-chrome alloy components.
A: We feature a dedicated team of engineers using state-of-the-art PLM, CAD, CAM, and CAPP software. We can supply comprehensive 3D system drawings within 24 hours of receiving initial customer drafts, ensuring seamless integration into existing thickeners, filtration plants, and backfill systems.
A: For water-scarce mine sites and high-density paste backfill loops, expeller seals combined with heavy mechanical seals are recommended. This configuration prevents pump leakage and avoids dilution of the concentrated tailings slurry with gland seal water.
A: Roots blowers provide aeration to slurry basins and thickeners to keep solids in suspension during system transitions. Water-ring vacuum pumps (like our LRA series) are critical for vacuum filtration equipment, removing water from the concentrated slurry to prepare it for dry stack disposal.
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