This pump achieves an energy saving of over 60% compared with centrifugal pumps, slurry pumps, and screw pumps, enabling enterprises to save tens of thousands of yuan in electricity costs annually. It features low maintenance expenses – only valve plates and rubber seals need to be replaced each time, with annual maintenance costs amounting to less than several hundred yuan. The plunger is made of fired alumina ceramics, which boasts high hardness and wear resistance, resulting in a service life of more than 15 years. This pump is suitable for conveying materials containing sand and solid particles. In addition, the working pressure can be adjusted arbitrarily within the range of 0-20 kg.
Take the YBH400-180 energy-saving pump dedicated to filter presses as an example: it has a flow rate of 180 cubic meters per hour, a motor power of 67 kW, and its pressure can be adjusted arbitrarily within the range of 0-20 kg. This pump realizes filter pressing of the hydraulic system by converting the kinetic energy of the oil pump driven by direct motor connection, achieving constant-pressure automatic variable displacement. When the filter pressing reaches the filtering pressure of the filter press, the current automatically decreases, thereby realizing energy saving.
Different from the "one-size-fits-all" design logic of traditional general-purpose pumps, energy-saving pumps dedicated to filter presses are developed around the working characteristics of filter presses... They have formed significant advantages in energy consumption control and adaptability, fundamentally solving the pain points of traditional equipment such as "overcapacity operation" and "poor adaptability".
The low power consumption advantage of energy-saving pumps dedicated to filter presses stems from the in-depth optimization of fluid mechanics and motor technology, which is specifically reflected in three dimensions:
Motor Selection: Equipped with YE4-class and above... energy-saving motors (energy efficiency ratio is 10%-15% higher than that of traditional Y-series motors). The motor iron core is laminated with high-silicon steel sheets to reduce hysteresis loss and eddy current loss. It can still maintain... operation under low-load and high-pressure working conditions, avoiding the problem of "high no-load energy consumption" of traditional motors.
Fluid Channel Optimization: The internal flow channel of the pump body adopts CFD (Computational Fluid Dynamics) simulation design, which reduces the turbulence and vortex loss of liquid in the pump and improves the flow efficiency. At the same time, it is matched with... impellers to reduce the resistance in the liquid transportation process, achieving the effect of "energy consumption reduced by 20%-30% under the same flow rate".
Intelligent Frequency Conversion Control: Some high-end models have a built-in frequency conversion system, which can automatically adjust the pump's speed and flow according to the working stages of the filter press (feeding, pressing, pressure holding) — large flow rate for rapid feeding in the initial feeding stage and low flow rate for pressure holding in the pressing stage. This avoids energy waste caused by the "constant speed operation" of traditional pumps and further reduces the energy consumption per unit processing capacity.
The working process of filter presses is characterized by "variable working conditions and large pressure fluctuations" (low-pressure and large-flow rate are required in the feeding stage, and high-pressure and small-flow rate are required in the pressing stage). Traditional general-purpose pumps often suffer from low efficiency and fast equipment wear due to "low pressure-flow matching degree". However, energy-saving pumps dedicated to filter presses achieve high adaptability through three major designs:
Wide Working Condition Pressure Range: The rated pressure of the pump can be flexibly adjusted according to the filter press model (such as plate-and-frame filter presses, box-type filter presses), covering the common pressure range of 0.6-2.0MPa. It meets the filtration requirements of different filter plate sizes and filter cloth types, avoiding problems such as "overpressure operation" or "insufficient pressure".
Flow Self-Adaptive Adjustment: The double-suction impeller or guide vane structure is adopted, so that the flow rate can still remain relatively stable when the pressure changes... ensuring uniform feeding of the filter press and good filter cake forming effect, and reducing problems such as "high filter cake moisture content" and "difficult cake discharge" caused by flow fluctuations.
Interface and Installation Adaptability: The inlet and outlet calibers and flange standards of the pump are fully matched with mainstream filter press brands (such as Jingjin, Zhongda Beilite), without the need for additional pipeline modification. At the same time, it supports both horizontal and vertical installation methods, adapting to different workshop layouts and reducing equipment installation costs.
With the characteristics of "low power consumption and high adaptability", energy-saving pumps dedicated to filter presses have been widely used in chemical, mining, environmental protection, food and other fields, becoming an important equipment for enterprises to achieve "energy conservation, carbon reduction, quality improvement and efficiency enhancement":
In the production of pesticides, dyes and fine chemicals, they are used in filter presses to separate solid impurities from reaction waste liquids. The low-power design reduces the total energy consumption of workshops, and the high adaptability... improves the efficiency of waste liquid treatment and reduces the discharge of hazardous waste.
In the mineral processing process of gold ore, copper ore and iron ore, they are matched with filter presses to treat tailings slurry. The high-pressure adaptability realizes the dry discharge of tailings, reducing the area occupied by tailings reservoirs; at the same time, the low-power operation reduces mineral processing costs, which meets the "green mining" requirements of the mining industry.
In municipal sewage treatment and industrial wastewater treatment, they are used in filter presses for sludge dewatering. The high-flow feeding... increases sludge treatment capacity, and the low-energy design reduces the operating costs of sewage treatment plants, helping to achieve the "dual carbon" goal.
In the production of starch, sucrose and dairy products, they are used in filter presses to separate impurities or by-products (such as starch residue and sugar residue) from raw materials. The food-grade flow-through components (304 stainless steel)... ensure product safety, and the low-noise operation meets the environmental protection requirements of food workshops; meanwhile, low power consumption reduces production costs.
When enterprises select energy-saving pumps dedicated to filter presses, they need to comprehensively consider their own filter press parameters and working condition requirements to avoid poor energy-saving effects caused by "improper selection":
Clarify Filter Press Parameters
Prioritize confirming the filter press’s filter plate area, rated working pressure, and required... flow rate. Based on these, match the pump’s rated pressure (it is recommended to be 0.2-0.3MPa higher than the filter press’s rated pressure) and flow rate (it is recommended to be 10%-15% higher than the filter press’s required flow rate to reserve a margin).
Pay Attention to Motor Energy Efficiency Level
Choose motors with an energy efficiency level of YE4 or above to prevent "energy-saving pumps failing to save energy" due to low motor energy efficiency. At the same time, confirm the motor’s protection level (such as IP54, IP55)... to ensure adaptability to workshop environments with dust, humidity, etc.
Select Additional Functions as Needed
If the filter press has large fluctuations in working conditions (e.g., intermittent feeding), it is recommended to choose a model with frequency conversion control. If the conveyed medium contains particles (e.g., mining tailings slurry), it is necessary to select wear-resistant flow-through components (e.g., high-chromium alloy impellers) to extend the equipment’s service life.
Prioritize Branded Products
Choose brands with "energy-saving..." (such as national energy-saving product...) and reliable after-sales service to avoid purchasing "pseudo-energy-saving" products. Meanwhile, confirm whether the manufacturer provides on-site installation and commissioning, regular maintenance, and other services to reduce later operation and maintenance costs.
Against the backdrop of the "dual carbon" goals and industrial green transformation, energy-saving pumps dedicated to filter presses are no longer merely "tools for reducing energy consumption", but have become a crucial component for enterprises to enhance their green competitiveness. Their "low power consumption" feature directly reduces operating costs and saves capital for enterprises; their "high adaptability" feature improves production efficiency and product quality, helping enterprises meet environmental protection requirements; and the combined "energy saving + ..." advantage formed by these two features further enables enterprises to take the initiative in policy guidance and market competition, achieving a win-win situation of economic and environmental benefits.
In the future, with the further upgrading of motor technology and frequency conversion control technology, energy-saving pumps dedicated to filter presses will develop towards the direction of "smarter, more ..., and more wear-resistant", providing stronger impetus for industrial green production.
