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Systematic Technical Pathways for Reducing Energy Consumption in Wet Spraying Boom Trucks
Release time:
2026-03-26
Source:
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Summary:
In the current era of green construction and cost control, the energy consumption level of wet-spray robotic platforms directly impacts both project operating costs and environmental benefits. Equipment energy consumption is primarily concentrated in core processes such as hydraulic system drive, concrete pumping, and mixing. Reducing energy consumption does not mean compromising performance; rather, it involves systematically enhancing energy conversion and utilization efficiency through technological innovations and effective management practices, thereby achieving the integrated objectives of energy conservation, cost reduction, and productivity improvement.
The core principle for reducing energy consumption lies in minimizing wasted work, matching power demand, and recovering and reusing energy. This requires coordinated advancement across three dimensions: equipment technology, construction practices, and operational management.
I. The adoption of advanced hydraulic and electrical control technologies is the fundamental basis for energy conservation.
The hydraulic system is the primary energy consumer of the wet-spray trolley, and its technical selection determines the baseline for energy efficiency.
1. Applications of load-sensing systems: Equipment equipped with a load-sensing system should be given priority. This system automatically detects the load demand of actuating components—such as boom cylinders and pumping motors—and dynamically adjusts the hydraulic pump’s pressure and flow output to provide oil “on demand.” In doing so, it fundamentally eliminates the substantial energy losses associated with overflow valves in conventional fixed-displacement pump systems when operating below full load.
2. Variable pumps and electro-hydraulic proportional control: Variable pumps can automatically adjust their displacement according to actual operating conditions. When combined with electro-hydraulic proportional control technology, they enable precise and smooth control of the actuator’s speed and force, thereby reducing… throttling Pressure and flow losses caused by throttling control.
3. Engine - Pump Power Matching: An advanced electronic control system intelligently matches engine speed with hydraulic pump power absorption based on overall load demand, ensuring the engine consistently operates within its most fuel-efficient speed range and eliminating inefficient conditions such as oversizing the engine for the task or operating under excessive load.
II. Optimizing Construction Techniques and Concrete Mix Proportions Is Key to Energy Conservation
The selection of construction methods directly affects the equipment’s workload and duration of operation.
1. Optimizing concrete pumpability: By optimizing the mix design and, while maintaining strength, incorporating high-efficiency water-reducing admixtures and other additives, the workability and flowability of concrete can be improved. This reduces pumping resistance, directly lowering the load that the pumping system must overcome and thereby significantly reducing the energy consumption of the main pump motor. This is one of the most cost-effective and impactful energy-saving measures.
2. Reducing pipeline pressure loss: Scientifically plan the layout of the pumping pipeline to minimize the number of bends and reduce bend curvature, while also shortening the total pipeline length. This effectively lowers both frictional and local pressure losses during pumping, enabling the equipment to accomplish the same task at lower pumping pressures.
3. Precision spraying operations: Train operators to master the optimal spray distance and angle to minimize concrete rebound. High rebound results in unnecessary energy consumption for conveying and spraying concrete that ultimately fails to adhere to the rock surface.
III. Implementing Lean Operations and Maintenance Management Ensures Energy Conservation
Good equipment condition and standardized operating practices are the foundation for maintaining efficient operation.
1. Eliminate Abnormal Heating in Hydraulic Systems: Excessively high hydraulic oil temperature is a clear indication of energy waste. Regularly inspect the cooling system’s performance to prevent internal leaks that lead to energy losses, and promptly replace any failed seals. Maintaining appropriate oil temperature and oil cleanliness is essential for ensuring efficient system operation.
2. Regular Maintenance and Performance Monitoring: Keep hydraulic fluid clean and replace filters on a scheduled basis to prevent contaminants from causing wear and tear on components, which can lead to reduced efficiency. Promptly repair or replace worn-out core components such as pumps and motors to restore their volumetric efficiency. Monitor operating parameters such as current draw, pressure, and flow rate to assess equipment energy efficiency.
3. Reduce No-Load and Standby Time: Optimize construction scheduling to minimize equipment operation under no-load conditions and prolonged idling in standby mode. Install an automatic idle-speed reduction feature that automatically lowers engine speed when the equipment remains inactive for a specified period, thereby reducing fuel consumption during no-load operation.
Conclusion
Energy conservation and consumption reduction in wet-mix shotcrete boom trucks is a systematic undertaking that spans the entire lifecycle—from equipment selection and construction planning to daily operation and maintenance. It calls for prioritizing equipment equipped with advanced load-sensing and intelligent control technologies to establish a high-efficiency foundation at the source; during construction, optimizing concrete properties and pipeline layout to directly reduce operational load; and in management, implementing refined operating procedures and preventive maintenance to ensure that equipment consistently operates within its most efficient range. Through the coordinated implementation of these systematic measures, it is possible to significantly reduce energy consumption and operating costs without compromising construction quality or efficiency, thereby enhancing both the economic viability and environmental sustainability of the project.
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Address: Loudi Avenue, Loudi High-tech Industrial Development Zone, Lianyuan City, Loudi City, Hunan Province
Telephone:400-186-0868
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