Modular backwash assembly and method for using the same

Patent metadata

Field	Value
Publication number	US-10967308-B2
Application number	US-201815989193-A
Country	US
Kind code	B2
Filing date	May 25, 2018
Priority date	Nov 22, 2017
Publication date	Apr 6, 2021
Grant date	Apr 6, 2021

Abstract

A modular backwash assembly and method for using the same is disclosed, the modular backwash assembly comprises a filter brick body, an ultrasonic generator and an ultrasonic connecting component, the filter brick body is provided at an upper portion with a square trench and a cover, the square trench is provided with a plurality of stiffeners and fillers, and a conductive channel is provided on the periphery of the square trench and is provided with an ultrasonic conductive medium therein. The invention has the advantages of firm structure and durable, the gas distribution uniformity may be increased up to 96% and the turbidity average is below the specification 10 NTU.

First claim

We claim:

1. A modular backwash assembly, comprising:
a filter brick body ( 1 ) of a cuboid structure, a square trench ( 2 ) provided at the center of an upper portion of the filter brick body ( 1 ) and is provided with a plurality of stiffeners ( 3 ) and fillers, a mating cover ( 4 ) provided over the square trench ( 2 ),
an inner cavity ( 5 ) and brick legs ( 6 ) provided at a lower portion of the filter brick body ( 1 ), the inner cavity ( 5 ) penetrates through the filter brick body ( 1 ) and the brick legs ( 6 ) are respectively disposed at an equal interval under the long sides of the filter brick body ( 1 ), wherein the fillers are either concrete or an adsorbent counterweight package, wherein the cover ( 4 ) is a solid cover when the fillers is concrete, and wherein the cover ( 4 ) is a hollow cover when the fillers is an adsorbent counterweight package,
a flow control gap ( 7 ) provided between the brick legs ( 6 ) and having the same width as the brick legs ( 6 ), a positioning block ( 8 ) provided above the flow control gap ( 7 ), a first slot ( 9 ) and a second slot ( 10 ) respectively provided at the brick legs ( 6 ) at two ends, and a corresponding first chuck ( 11 ) and a second chuck ( 12 ) respectively provided at the opposite sides of the first slot ( 9 ) and the second slot ( 10 ),
a male fastener ( 13 ) provided at one short side of the filter brick body ( 1 ) and a corresponding female fastener ( 14 ) provided at the other short side, the male fastener ( 13 ) and the female fastener ( 14 ) are configured to connect transversely adjacent filter brick bodies, wherein the male fastener ( 13 ) comprises a first positive round tenon ( 131 ) and a first negative round groove ( 132 ), the female fastener ( 14 ) comprises a second positive round tenon ( 141 ) and a second negative round groove ( 142 ), the first positive round tenon ( 131 ) and the second positive round tenon ( 141 ) are respectively provided with an expansion slit ( 133 ), the first positive round tenon ( 131 ) and the second negative round groove ( 142 ), the first negative round groove ( 132 ) and the second positive round tenon ( 141 ) match each other respectively.

2. A modular backwash assembly, comprising: a filter brick body ( 1 ) of a cuboid structure, an ultrasonic generator ( 15 ) and an ultrasonic connecting component ( 16 ), a square trench ( 2 ) provided at the center of an upper portion of the filter brick body ( 1 ) and is provided with a plurality of stiffeners ( 3 ) and fillers,
a mating cover ( 4 ) provided over the square trench ( 2 ), a conductive channel ( 17 ) provided on the periphery of the square trench ( 2 ) and is “U” shaped, the conductive channel ( 17 ) being built in the upper portion of the filter brick body ( 1 ), and is provided with an ultrasonic conductive medium therein,
an inner cavity ( 5 ) and brick legs ( 6 ) provided at a lower portion of the filter brick body ( 1 ), the inner cavity ( 5 ) penetrating through the filter brick body ( 1 ) and the brick legs ( 6 ) being respectively disposed at an equal interval under the long sides of the filter brick body ( 1 ),
a flow control gap ( 7 ) provided between the brick legs ( 6 ) wherein the flow control gap and the brick legs have the same width, a positioning block ( 8 ) provided above the flow control gap ( 7 ), a first slot ( 9 ) and a second slot ( 10 ) respectively provided at the brick legs ( 6 ) at two ends, and a corresponding first chuck ( 11 ) and a second chuck ( 12 ) respectively provided at the opposite sides of the first slot ( 9 ) and the second slot ( 10 ),
the first chuck ( 11 ) and the second chuck ( 12 ) are respectively provided with a first infusion channel ( 18 ) and a second infusion channel ( 19 ), one end of the first infusion channel ( 18 ) and the second infusion channel ( 19 ) respectively communicates with the conductive channel ( 17 ), and the other end of the first infusion channel ( 18 ) and the second infusion channel ( 19 ) penetrates the first chuck ( 11 ) and the second chuck ( 12 ) respectively, and is sealed by a blocker ( 20 ),
a male fastener ( 13 ) provided at one short side of the filter brick body ( 1 ) and a corresponding female fastener ( 14 ) provided at the other short side, the male fastener ( 13 ) and the female fastener ( 14 ) are configured to connect transversely adjacent filter brick bodies,
the ultrasonic connecting component ( 16 ) comprises a piercing probe ( 161 ) and a sealing sleeve ( 162 ), the distal end of the piercing probe ( 161 ) is located in the first infusion channel ( 18 ) or the second infusion channel ( 19 ) and is in contact with the ultrasonic conductive medium, the proximal end of the piercing probe ( 161 ) is connected with the ultrasonic generator ( 15 ) through a waterproof wire ( 21 ), the sealing sleeve ( 162 ) is wrapped around the first chuck ( 11 ) or the second chuck ( 12 ).

3. The modular backwash assembly according to claim 2 , wherein the fillers are either concrete or an adsorbent counterweight package, wherein the cover ( 4 ) is a solid cover when the fillers is concrete, and wherein the cover ( 4 ) is a hollow cover when the fillers is an adsorbent counterweight package.

4. The modular backwash assembly according to claim 2 , wherein the male fastener ( 13 ) comprises a first positive round tenon ( 131 ) and a first negative round groove ( 132 ), the female fastener ( 14 ) comprises a second positive round tenon ( 141 ) and a second negative round groove ( 142 ), the first positive round tenon ( 131 ) and the second positive round tenon ( 141 ) are respectively provided with an expansion slit ( 133 ), the first positive round tenon ( 131 ) and the second negative round groove ( 142 ), the first negative round groove ( 132 ) and the second positive round tenon ( 141 ) match each other respectively.

Assignees

• Nanjing University Of Technology
• Yixing Environmental Protection Research Institute Of Nanjing Univ

Inventors

• Huang Hui
• Ren Hongqiang
• Zhang Xuxiang
• Geng Jinju
• Wang Qing

Classifications

• C02F1/001 Primary

  Processes for the treatment of water whereby the filtration technique is of importance (C02F1/44 takes precedence; construction of filters in general B01D24/00 - B01D41/00) · CPC title

• C02F1/281

  using inorganic sorbents · CPC title

• C02F1/288

  using composite sorbents, e.g. coated, impregnated, multi-layered · CPC title

• C02F2201/007

  Modular design · CPC title

• C02F2101/20

  Heavy metals or heavy metal compounds · CPC title