Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A backwashing and filter technology, applied in chemical instruments and methods, fixed filter element filters, separation methods, etc., can solve the problems of insufficient sewage treatment capacity, small filtering area, slow liquid flow, etc., and achieve convenient replacement and filtration. High efficiency and the effect of increasing filtration time
Inactive Publication Date: 2021-06-11
CHINA UNIV OF MINING & TECH
View PDF0 Cites 18 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
The existing automatic backwash filter basically flows slowly in the cylinder when filtering, and impurities are more likely to be trapped on the inner wall of the filter to block the filter holes, resulting in a smaller filtration area and insufficient sewage treatment capacity.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0044] Embodiments of the application will be further described below in conjunction with the accompanying drawings:
[0045] Such as figure 1 and 3 As shown, the automatic backwash filter of the present invention includes a channel switching main valve, a valve plate 8 and a cylinder 12, wherein the valve plate 8 is arranged on the upper opening of the cylinder 12, and the main valve is arranged on the valve plate 8 and Conduction with the inside of the cylinder body 12 through the flow channel; the valve plate 8 and the cylinder body 12 are connected by bolts (11), gaskets (9) and nuts (10);
[0046] Wherein cylinder body 12 is provided with the filter screen 16 of columnar structure by filter screen steel frame 17, and filter screen 16 is arranged in the filter screen steel frame 17, and cylinder body 12 inner space is divided into two spaces by filter screen 16, wherein filter The space in the screen 16 is provided with a spiral blade 15 for scraping the inner wall of th...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention discloses an automatic backwashing filter and a working method, which are suitable for filtering impurities in sewage. The filter comprises a runner switching main valve, a valve plate and a barrel, the valve plate is arranged on an upper opening of the barrel, and the main valve is arranged on the valve plate and communicated with the interior of the barrel through a runner; two flow channels are arranged on the valve plate, one flow channel is a filtering flow channel communicated with the inner space of the filter screen, and the other flow channel is a backwashing flow channel communicated with the space between the filter screen and the cylinder body; the flow channel switching main valve comprises a valve body, a sewage draining exit, a water inlet and a water outlet are sequentially formed in the valve body from left to right, and a filtering outlet connected with the filtering flow channel and a backwashing outlet connected with the backwashing flow channel are sequentially formed in the lower portion of the valve body from left to right; wherein a two-position five-way reversing valve group capable of automatically switching a normal working mode or a backwashing mode according to the blockage condition of the filter screen is arranged among the drain outlet, the water inlet, the water outlet, the filter outlet and the backwashing outlet. The filter is simple in structure, does not consume energy, and automatically switches backwashing.
Description
technical field [0001] The invention relates to an automatic backwash filter and a working method, and is especially suitable for an automatic backwash filter used for filtering impurities in sewage in the production of industrial and mining enterprises. Background technique [0002] Backwash 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 Precision equipment that works properly. The backwash filter can be installed vertically, horizontally, or upside down in any direction, and can be used for water filtration in various industries such as industry, agriculture, municipal power, electronics, medicine, food, printing and dyeing, construction, steel, metallurgy, and papermaking. [0003] Due to the development of intelligence (PLC, PAC...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more