Will humid weather during the rainy season affect the normal filling of bulk equipment?

The high humidity environment during the rainy season is a typical environmental disturbance factor in industrial bulk filling operations (including quantitative filling of various bulk materials such as powders, particles, and fluids). The chain reaction caused by water vapor condensation and material property changes impacts the accuracy, efficiency, and stability of filling from multiple dimensions, becoming an indispensable variable in the filling process.

Wet weather can directly change the core performance of the filling material and damage the measurement accuracy. The materials for bulk filling are mostly powders, particles, or fluids. When the relative humidity of the environment continues to be above 70%, the materials are prone to absorb water vapor from the air and undergo biological deterioration: powders such as cement fillers and chemical intermediate powders, after absorbing moisture, the molecular adhesion between particles is enhanced, and the originally loose flowability is greatly reduced. The angle of repose increases from around 28 ° to over 45 °, and the smoothness of gravity conveying and screw conveying drops sharply, resulting in the loss of signal stability in the measuring process. Industry standard monitoring data shows that when the humidity of powder materials increases from 50% to 85%, the filling measurement error will expand from ± 0.2% to ± 1.1%, exceeding the ± 0.5% accuracy threshold required by most industrial filling scenarios, directly leading to substandard filling volume or raw material waste. Particles such as plastic particles and grains, after absorbing moisture, will form sticky residue on the inner wall of the silo and the conveying pipeline. The actual discharge volume of each filling gradually decreases, and the cumulative error can reach more than 5%, which destroys the consistency of product specifications. Although fluids have a relatively mild hygroscopic effect, easily condensable fluids (such as some liquid resins) can condense and solidify at the filling head in humid environments, blocking the filling channel and causing interruption of filling.

Secondly, humid weather can accelerate the wear and tear of core components in bulk equipment, leading to various malfunctions. The core units of bulk equipment are mostly metal or precision electrical components, and high humidity environments can significantly accelerate their degradation rate: as the core carrier of measurement, the increase in humidity of weighing sensors can cause a decrease in the insulation resistance of the sensor strain gauges, zero drift in signal transmission, distortion of the original accurate weight acquisition signal, and cause the filling volume to fluctuate high and low. In severe cases, it can trigger a measurement alarm and cause shutdown. The metal pistons and seals of pneumatic actuators (filling cylinders, conveying valves) are prone to rusting under water vapor erosion, resulting in jamming and delay during operation, leading to loose closure of the filling valve and material leakage, or inadequate expansion and contraction of the cylinder causing pipeline displacement and material spillage polluting the production environment. The wiring terminals, PLC modules, and other components of the electrical control system may experience increased contact resistance and decreased insulation performance due to moisture. In mild cases, equipment may start or stop incorrectly, and in severe cases, short circuits may burn out the core control unit, causing production interruptions.

Furthermore, humid weather can reduce the overall efficiency and compliance of filling operations. In addition to precision and equipment failures, humid environments will increase the frequency of operation and maintenance: powder wall hanging and particle residue need to be cleaned regularly, with a single cleaning time of 10-20 minutes, resulting in a 15% -25% decrease in daily production efficiency; When liquid filling, the condensation at the filling port should be wiped off in a timely manner to avoid dripping into the container and contaminating the product, further occupying production time. For industries with hygiene requirements such as food and medicine, moisture induced material moisture absorption and agglomeration can also lead to product microbial indicators exceeding standards, not meeting production safety standards, and even causing product recall risks.

In summary, the humid weather during the rainy season constitutes a systematic interference on bulk filling from three aspects: material properties, equipment performance, and production control. Its impact is universal and chain like, and it is an environmental control issue that needs to be focused on in the industrial filling field.