1. Industry Background: Pain Points and Transformation Demands of traditional Sand making
The global construction industry's demand for high-quality aggregates has soared, but traditional sand-making processes are facing three major challenges:
Resource waste: The exploitation of natural sand is restricted, and the particle shape and gradation of manufactured sand are poor and unreasonable, resulting in insufficient strength of concrete.
High energy consumption: The crushing efficiency of traditional equipment is low, and the power consumption per unit output is 20% to 30% higher than the international advanced level.
Environmental protection pressure: Excessive dust emissions and severe noise pollution do not meet the requirements of the "dual carbon" goals.
The key to breaking the deadlock: Achieving efficient, precise and green sand-making production through technological innovation.
2. Technological Innovation: Core breakthroughs in high-efficiency sand-making equipment
The new generation of sand making machines (such as VSI vertical shaft impact crushers) has reshaped the industry benchmark through three major technological upgrades:
(1) Precise crushing system: Particle shape control reaches the micron level
Double-chamber vortex design: The material intelligently switches between the "stone-on-stone" and "stone-on-iron" chambers, and the finished sand has a smooth grain shape with a needle-like and flaky content of ≤5% (national standard ≤15%).
Variable frequency speed regulation technology: The impeller speed is adjustable (1200-2000r/min), adapting to different material hardness levels (Mohs hardness 3-8 grades), ensuring uniform output particle size (D50 deviation ≤±0.5mm).
(2) Super energy-saving architecture: Energy consumption reduced by 40%
Deep cavity impeller structure: It increases the material throughput by 30%, and when combined with a thin oil lubrication system, the bearing life is extended by two times.
Intelligent energy recovery device: It converts the kinetic energy generated during the crushing process into electrical energy, reducing the comprehensive energy consumption by 35% to 40% compared with traditional equipment.
(3) Full-process environmental protection control: Dust emissions < 10mg/m³
Negative pressure dust removal system: Integrated pulse bag dust collector, dust collection efficiency up to 99.9%, meeting the EU CE standard.
Noise reduction and shock absorption design: It adopts a rubber shock-absorbing base and a sound-absorbing cover, with operating noise ≤75dB (equivalent to normal conversation volume).