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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
27
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 supply company's wastewater treatment system. According to China's daily drinking water hygiene standards, the pH value of drinking water is 6.5~8.5. Currently, the pH value of water sources in many cities in China has been slightly low for a long time. In addition, after the raw water is treated with coagulants and chlorine disinfection, the water pH value will generally decrease again. Therefore, lime milk from the lime storage silo is needed to adjust the pH of the water. Status of the lime storage silo before the upgrade Dry lime is sent to the solution pool by foreign exchange speculation, mixed with tap water, and the tap water user flow is controlled by the water flow meter and valve. After stirring, it is introduced into the water intake pool, where it is fully stirred. In this application, many difficulties have arisen, frequently interrupting the normal operation of the lime storage silo, endangering the coagulation sedimentation effect, harming water quality, and reducing the stability of the power supply system. Key defects of the lime storage silo system before improvement (1) Solution pool and suction
.xtxtcnt {text-indent:28px;text-align:left !important;}Currently, the lime storage silo is a key component of the water supply company's wastewater treatment system. According to China's daily drinking water hygiene standards, the pH value of drinking water is 6.5~8.5. Currently, the pH value of water sources in many cities in China has been slightly low for a long time. In addition, after the raw water is treated with coagulants and chlorine disinfection, the water pH value will generally decrease again. Therefore, lime milk is needed from the lime storage silo to adjust the water pH. Status of the lime storage silo before the upgrade. Dry lime was sent to the solution pool by foreign exchange speculation, mixed with tap water, and the tap water user flow was controlled by the water flow meter and valve. After stirring, it was introduced into the water intake pool for sufficient stirring. Many difficulties arose during this use, frequently interrupting the normal operation of the lime storage silo, jeopardizing coagulation sedimentation performance, harming water quality, and reducing the stability of the power supply system. Key defects of the lime storage silo system before improvement (1) The solution pool and suction pipe surface are made of fiberglass reinforced plastic, and the raw materials are very thin. During operation, due to the impact force, the stirrer bases installed in the solution pool and water intake pool covers have been in a vibrating state for many years. The stirrer in the water intake pool is installed on the half-cover, so the vibration during operation is more prominent. (2) Damaged by vibration, gaps appeared on the side of the moisture-proof box, causing lime water to seep in. (3) The stirrers installed on the solution pool and water intake pool are all imported products. Due to vibration, the friction resistance between the fixed bearing seat screws decreases, the fixed screws gradually loosen, the spherical bearings move, the roller bearings are damaged, and the stirring shaft bends. In addition, due to the very large impact force, the motor also makes 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 equipment is seriously threatened. (4) There are many insoluble impurities in the lime, which often block the metering pump. After the metering pump is blocked, the pump casing of the metering pump is easily cracked. Generally, it takes about a month to disassemble a diaphragm. Because the metering pump is imported, the price is relatively high. In addition, lime milk is also very easy to crystallize in the hydraulic end of the metering pump, causing the hydraulic end check valve to not cooperate closely with the high-pressure gate valve, seriously threatening the stability of the metering pump. (5) The suction pipe and pressure pipe of the metering pump are arranged in a complex and overlapping manner, and the diameter is too small, making it easy for impurities in the lime milk to stick to the inside of the pipe. (6) Because the PVC pipe transporting lime milk is too long, about 120 meters, when cleaning personnel remove accumulated impurities in the pipe, they must saw off the PVC pipe and use hooks and high-pressure water pumps to remove impurities. Labor productivity is high, and the construction period is long.
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