Rotary self-cleaning filter

Abstract

The invention discloses a rotary self-cleaning filter. A drum cover is covered on an upper opening of a drum body; a water outlet is formed on a lateral lower wall of the drum body; a water inlet is formed at the top end of the drum cover; a separating plate is fixedly arranged between the upper opening of the drum body and the drum cover; a hydraulic motor is fixedly arranged in the drum cover; the hydraulic motor is connected with the water inlet; a coaxial cylindrical filter screen is sleeved in an inner chamber of the drum body; the inner chamber of the drum body is separated into an inner cavity and an outer cavity by the filter screen; a rotating shaft coaxial with the filter screen is arranged in the inner cavity; the top end of the rotating shaft upward extends out of the central hole on the separating plate and is fixedly connected with the hydraulic motor; a cleaning hairbrush is arranged on the outer wall of the rotating shaft; the external end of the cleaning hairbrush is in contact with the filter screen; a draining pipe is arranged right under the drum body. The entering filtering liquid is utilized to automatically clean the filter screen; the filter screen is not detached for cleaning and no cleaning system is additionally arranged; the degree of automation is high; the hydraulic motor supplies power through the filtering liquid passing through the water inlet pipe; the electric energy is saved.

Description

technical field [0001] The invention relates to a filter in the field of water treatment, in particular to a rotary self-cleaning filter. Background technique [0002] Self-cleaning filter is a kind of filter that directly intercepts impurities in water, removes suspended solids and particulate matter in water, reduces turbidity, purifies water quality, reduces system dirt, bacteria and algae, rust, etc., to purify water quality and protect other equipment in the system. Working precision equipment, water enters the body of the self-cleaning filter from the water inlet. Due to the intelligent design, the system can automatically identify the degree of impurity deposition, and signal the sewage valve to automatically discharge sewage. [0003] Commonly used self-cleaning filter structures are: one is to use multiple filters in parallel and use them separately. When the filter in working condition needs to be cleaned, stop the work of the filter and start another filter at the...

AI Technical Summary

Problems solved by technology

[0003] Commonly used self-cleaning filter structures are: one is to use multiple filters in parallel and use them separately. When the filter in working condition needs to be cleaned, stop the work of the filter and start another filter at the same time. The disadvantage is that it increases the cost of the system. The system is huge, the degree of automation is low, manual cleaning is required, and a lot of manpower and material resources are consumed

The second is to open the bypass inlet to change the direction of the imported water passing through the filter, that is, to use unfiltered water to reverse the filter. The disadvantage is that the cleaning is not thorough and the water consumption is large.

The third is that multiple filter units are installed in the filter cylinder to clean one by one. The disadvantage is that when a filter unit has not been thoroughly cleaned, the continuously rotating motor will drive the cleaning arm to turn away, resulting in incomplete cleaning and consumption. large amount of water

Fourth, most of them rely on electric motors to operate. Due to the impurity of the filtrate, the conductivity of the liquid is increased. Once leakage occurs, it will bring great harm to the staff.

Fifth, when the filter screen is polluted to a certain extent, the filter screen will be self-cleaning, which will affect the filtering effect of the filtrate and reduce the filtering efficiency

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