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ProductsEnsure that products are not affected by contamination or defects during manufacturing. In addition, supply chain management can help suppliers improve production efficiency and product quality by tracking quality metrics and using modern technologies.
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BlogEnsure that products are not affected by contamination or defects during manufacturing. In addition, supply chain management can help suppliers improve production efficiency and product quality by tracking quality metrics and using modern technologies.
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Contact UsEnsure that products are not affected by contamination or defects during manufacturing. In addition, supply chain management can help suppliers improve production efficiency and product quality by tracking quality metrics and using modern technologies.
News
NEWS CENTER
16
2023
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01
Shortcomings and Improvements of the Lime Storage Silo
Currently, the lime storage silo is a key component of the water treatment system in water companies. China's drinking water hygiene standards specify a pH value of 6.5~8.5 for potable water. Currently, the pH value of water sources in many parts of China is consistently slightly low. Furthermore, after source water undergoes coagulation and chlorination, the water pH generally decreases again. Therefore, lime milk from the lime storage silo is used to adjust the water's pH. Pre-upgrade lime storage silo conditions: Dry lime was fed into the solution tank and mixed with drinking water; the drinking water platform flow rate was simultaneously controlled by the inlet flow meter and valve. After mixing, it was injected into the water absorption tank for thorough mixing. During this process, many problems arose, frequently interrupting the normal operation of the lime storage silo, affecting the coagulation sedimentation reaction, harming water quality, and reducing the stability of power supply quality. Main defects of the pre-improvement lime storage silo system: (1) The solution tank and suction pipe water surface used fiberglass reinforced plastic (FRP) anti-corrosion, with relatively thin material. During operation, the stirrers installed in the solution tank and water absorption tank covers were impacted by the force of the mixer.
Currently, the lime storage silo is a key component of the water treatment system at the water company. China's drinking water hygiene standards stipulate a pH value of 6.5~8.5 for potable water. Currently, the pH value of water sources in many parts of China is often slightly low. Furthermore, after source water undergoes coagulation and chlorination, the water pH generally decreases again. Therefore, lime milk from the lime storage silo is used to adjust the water's pH. Pre-Renovation Condition of the Lime Storage Silo Dry lime was fed into the dissolving tank and mixed with drinking water; the drinking water platform flow rate was simultaneously controlled by the inlet flow meter and valve. After mixing, it was injected into the suction tank for thorough mixing. During this process, many problems arose, frequently interrupting the normal operation of the lime storage silo, affecting the coagulation sedimentation reaction, harming water quality, and reducing the stability of power supply quality. Main Defects of the Pre-Improvement Lime Storage Silo System (1) The dissolving tank and suction pipe water surface used fiberglass reinforced plastic (FRP) anti-corrosion, with relatively thin material. During operation, due to the impact force, the agitator bases installed in the dissolving tank and suction tank covers have been subjected to vibration for many years. The agitator in the suction tank is installed on a half-cover, making the vibration during operation more pronounced. (2) Affected by vibration, cracks occurred on the side of the humidification tank, causing lime water leakage. (3) The agitators installed on the dissolving tank and suction tank were both imported products. Due to vibration, the friction between the fixed bearing seat screws decreased, causing the fixed screws to gradually loosen, leading to bearing displacement, bearing damage, and bending of the stirring shaft. At the same time, due to the increasing impact force, the motor also made abnormal noises, causing a certain degree of noise pollution to the surrounding environment. Due to the inability to purchase spare parts, the normal operation of the machine was severely affected. (4) The lime contains many insoluble impurities, often clogging the metering pump. After the metering pump is blocked, the metering pump diaphragm is easily cracked. Generally, replacing a diaphragm takes more than a month. Because the metering pump is imported, the price is high. In addition, lime milk easily crystallizes in the hydraulic end of the metering pump, causing the inlet and outlet check valves of the hydraulic end to fail to cooperate with the high-pressure gate valve, seriously affecting the stability of the metering pump. (5) The suction pipe and pressure pipe arrangement of the metering pump is complex and overlapping, and the diameter is too small, making it easy for impurities in the lime milk to adhere to the pipe. (6) Because the PVC pipe transporting lime milk is too long, approximately 120 meters, when cleaning personnel remove accumulated impurities in the pipe, they must cut the PVC pipe and use hooks and high-pressure water guns to remove the impurities. This results in low labor efficiency and a long construction period.
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