Automatic chlorination device for sewage pretreatment

Abstract

The invention discloses an automatic chlorination device for sewage pretreatment, the automatic chlorination device comprises a storage box, a feeding box, a screw rod, a driving assembly, a transmission assembly and a controller, the screw rod is horizontally arranged in the feeding box, the feeding box is provided with a feeding port at a position close to a first end of the screw rod, the feeding box is provided with a discharging port at a position close to a second end of the screw rod, and the feeding port and the discharging port are located in the two opposite side walls of the feeding box correspondingly; the storage box is configured to be used for storing a chlorine-containing disinfectant and is connected to the feeding port; the driving assembly is connected to the screw rod through the transmission assembly so as to drive the screw rod to rotate; the controller is electrically connected to the driving assembly, and the controller is configured to communicate with an external flowmeter and control starting and stopping of the driving assembly according to flow data collected by the flowmeter. The invention also provides a sewage pretreatment method using the automatic chlorination device. Automatic and accurate chlorination can be realized by monitoring the actual sewage flow in real time.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to an automatic chlorination device for sewage pretreatment. Background technique [0002] Chlorine, as a chemical agent for chlorination and disinfection, has been used for the first time since the nineteenth century and has a history of more than one hundred years. Medical or laboratory sewage is a type of sewage rich in microorganisms in urban sewage, which may contain a large number of harmful components such as bacteria and viruses. Therefore, for this type of sewage, it has become a key requirement for urban sewage treatment to kill harmful microorganisms before entering the urban sewage pipe network to prevent the spread of harmful bacteria. [0003] The microbial sewage pretreatment system is to disinfect and sterilize the sewage in advance by adding chlorine-containing disinfectant before the sewage is discharged into the sewage pipe network, and then discharge the steriliz...

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Problems solved by technology

[0004] Judging from the current development of microbial sewage pretreatment products, there are common problems such as short chlorination cycle, frequent manual operations, inability to accurately control the amount of chlorine added to match the amount of sewage, insufficient disinfection of sewage, or excessive residual chlorine.

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