Qidu Pharmaceutical Circulating Water Treatment
Qidu Pharmaceutical Circulating Water Treatment

Qidu Pharmaceutical Circulating Water Treatment

Shandong Qidu Pharmaceutical Co., Ltd. is a comprehensive pharmaceutical enterprise integrating science, industry, and trade, primarily engaged in the production of large-capacity injections. It is located in Linzi District, Zibo City, the ancient capital of the State of Qi, a national historical and cultural city. Its predecessor, Shandong Linzi Pharmaceutical Factory, was established in 1976, restructured into a joint-stock cooperative in 1998, and standardized as a limited company in 2004. Generally speaking, impurities in circulating cooling water include dust from the atmosphere, suspended solids, etc.; oil leakage from cooling tower fans, corrosion and peeling of tower bodies, packing, water pools, and other structural materials can enter the cooling water; precipitates generated after adding chemicals during cooling water treatment; viscous dirt formed by microbial growth and secretions within the system. When the self-cleaning filter operates, it can filter out impurities, thereby improving the stability of the circulating water cooling system. Applying self-cleaning filters to circulating water treatment can reduce sediment adhesion, corrosion, and sludge blockage in heat exchange pipelines, ensuring that the heat exchangers in the cooling water system always operate in a good environment. This will greatly reduce the paralysis of the entire system caused by impurities in circulating cooling water, ensuring normal system operation. Treating circulating cooling water reduces external wastewater discharge to some extent, lowers water pollution, and can even achieve wastewater reuse and zero discharge in the system, reducing environmental pollution. More importantly, after circulating cooling water is treated by the self-cleaning filter, the service life of heat exchange system equipment is extended, corrosion damage accidents are effectively reduced, and the economic benefits of enterprises are improved.

 Dirty water enters from the filter inlet, first passing through the coarse filter screen to remove larger particles, then reaching the fine filter screen. During filtration, the fine filter screen gradually accumulates dirt and impurities from the water, forming a filter impurity layer. Because the impurity layer accumulates on the inside of the fine filter screen, a pressure difference forms on the inside and outside of the fine filter screen. When the pressure difference of the self-cleaning filter reaches the preset value, a switch signal is sent to the control box PLC system to start a cleaning cycle. Cleaning process: The cleaning mechanism of the fully automatic negative pressure suction filter is a stainless steel spiral up-and-down moving suction scanner. It is hollow in structure, with several suction nozzles vertically distributed at certain distances along its axis. The inside of the suction scanner communicates with the 3” drain valve. When the drain valve opens, the pressure difference between the internal water pressure of the filter and the external atmospheric pressure generates strong suction at each suction nozzle. At each suction nozzle, water flows rapidly from outside to inside in reverse, washing impurities attached to the inner wall of the filter screen into the suction nozzle, through the hollow shaft of the suction scanner, then discharged through the drain valve, completing the cleaning process which takes about 30-60 seconds. At this time, the pressure difference returns to normal, the cleaning process ends, and filtration resumes. During cleaning, the system continues to flow.

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Pharmaceuticals

Jinan Fumide Environmental Protection Technology Co., Ltd.

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131 5317 1310

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Shandong Qidu Pharmaceutical Co., Ltd. is a comprehensive pharmaceutical enterprise integrating science, industry, and trade, primarily engaged in the production of large-capacity injections. It is located in Linzi District, Zibo City, the ancient capital of the State of Qi, a national historical and cultural city. Its predecessor, Shandong Linzi Pharmaceutical Factory, was established in 1976, restructured into a joint-stock cooperative in 1998, and standardized as a limited company in 2004. Generally speaking, impurities in circulating cooling water include dust from the atmosphere, suspended solids, etc.; oil leakage from cooling tower fans, corrosion and peeling of tower bodies, packing, water pools, and other structural materials can enter the cooling water; precipitates generated after adding chemicals during cooling water treatment; viscous dirt formed by microbial growth and secretions within the system. When the self-cleaning filter operates, it can filter out impurities, thereby improving the stability of the circulating water cooling system. Applying self-cleaning filters to circulating water treatment can reduce sediment adhesion, corrosion, and sludge blockage in heat exchange pipelines, ensuring that the heat exchangers in the cooling water system always operate in a good environment. This will greatly reduce the paralysis of the entire system caused by impurities in circulating cooling water, ensuring normal system operation. Treating circulating cooling water reduces external wastewater discharge to some extent, lowers water pollution, and can even achieve wastewater reuse and zero discharge in the system, reducing environmental pollution. More importantly, after circulating cooling water is treated by the self-cleaning filter, the service life of heat exchange system equipment is extended, corrosion damage accidents are effectively reduced, and the economic benefits of enterprises are improved.

 Dirty water enters from the filter inlet, first passing through the coarse filter screen to remove larger particles, then reaching the fine filter screen. During filtration, the fine filter screen gradually accumulates dirt and impurities from the water, forming a filter impurity layer. Because the impurity layer accumulates on the inside of the fine filter screen, a pressure difference forms on the inside and outside of the fine filter screen. When the pressure difference of the self-cleaning filter reaches the preset value, a switch signal is sent to the control box PLC system to start a cleaning cycle. Cleaning process: The cleaning mechanism of the fully automatic negative pressure suction filter is a stainless steel spiral up-and-down moving suction scanner. It is hollow in structure, with several suction nozzles vertically distributed at certain distances along its axis. The inside of the suction scanner communicates with the 3” drain valve. When the drain valve opens, the pressure difference between the internal water pressure of the filter and the external atmospheric pressure generates strong suction at each suction nozzle. At each suction nozzle, water flows rapidly from outside to inside in reverse, washing impurities attached to the inner wall of the filter screen into the suction nozzle, through the hollow shaft of the suction scanner, then discharged through the drain valve, completing the cleaning process which takes about 30-60 seconds. At this time, the pressure difference returns to normal, the cleaning process ends, and filtration resumes. During cleaning, the system continues to flow.

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