| 摘要 |
A cycle self-cleaning filter comprises: a filtering device, a backwashing device, a cleaning device, and a chemical washing device. The filtering device comprises a filtering tank (100), a water inlet pipe (110), and a water outlet pipe (130), and is provided with a filtering tank water outlet (161) and a filtering tank water inlet (160). The backwashing device comprises a backwashing water inlet pipe (120) and a dirty water draining pipe (150). The backwashing water inlet pipe (120) is disposed with a backwashing pump (140). The cleaning device comprises a cleaning pump (210) mounted on a platform at the bottom of the filtering tank (100) and an obliquely arranged cleaner (200). The chemical washing device comprises a chemical washing tank (300) and a chemical washing pump (330). The cleaner (200) comprises a sieve cylinder (240) mounted within a housing (230) thereof. Processes of backwashing, cleaning, and chemical washing are formed between the devices. According to a contamination degree of filtering materials, a suitable backwashing process or a combination of multiple backwashing processes is selected to address the problems of unstable water quality, hardening of the filtering materials due to a high polymer content in water and defects in a single external cleaning process such as long backwashing time, high energy consumption, poor cleaning effect, serious wear-and-tear of a cleaning pump, etc. |
