Vehicle-mounted vacuum system and method of separating liquid and solids fractions of a sludge-like mixture inside a container
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-029/68
출원번호
US-0724900
(2012-12-21)
등록번호
US-8679335
(2014-03-25)
발명자
/ 주소
Dufort, Denis
출원인 / 주소
Saniprotex Inc.
대리인 / 주소
IPAXIO S.E.N.C.
인용정보
피인용 횟수 :
5인용 특허 :
28
초록▼
The vacuum system (100) is mounted on a vehicle (102). It includes a dewatered solid matter compartment (142), a liquid matter compartment (144), a main flexible hose (130), and an immersible suction head (120) connected to a distal end of the main flexible hose (130). The suction head (120) include
The vacuum system (100) is mounted on a vehicle (102). It includes a dewatered solid matter compartment (142), a liquid matter compartment (144), a main flexible hose (130), and an immersible suction head (120) connected to a distal end of the main flexible hose (130). The suction head (120) includes a static dewatering screen filter (150) and a screen-washing arrangement (170) cooperating with the suction head (120). The screen-washing arrangement (170) is in fluid communication with the liquid matter compartment (144) through a high-pressure liquid circuit. The screen-washing arrangement (170) using the liquid matter from the liquid matter compartment (142) as a washing fluid. A method of separating solids and liquid fractions is also disclosed.
대표청구항▼
1. A vacuum system mounted on a vehicle for dewatering a sludge mixture within a container, removing dewatered solid matter from within the container and then returning liquid matter removed from the sludge mixture back inside the container, the system including: a vacuum tank dewatered solid matter
1. A vacuum system mounted on a vehicle for dewatering a sludge mixture within a container, removing dewatered solid matter from within the container and then returning liquid matter removed from the sludge mixture back inside the container, the system including: a vacuum tank dewatered solid matter compartment, the solid matter compartment having an upper portion and a bottom portion;a vacuum tank liquid matter compartment, the liquid matter compartment having an upper portion and a bottom portion, the upper portion of the liquid matter compartment being in direct fluid communication with the upper portion of the solid matter compartment to equalize pressure under vacuum conditions created by a vacuum pump arrangement mounted on the vehicle;a main flexible hose having a proximal end and a distal end, the proximal end being selectively made in fluid communication with the solid matter compartment or the liquid matter compartment;an immersible suction head connected to the distal end of the main flexible hose, the suction head including a static dewatering screen filter; anda screen-washing arrangement having liquid outlets mounted on the suction head to spray liquid jets onto the screen filter, the screen-washing arrangement being in fluid communication with the liquid matter compartment through a pressurized liquid circuit and using the liquid matter from the liquid matter compartment as a washing fluid. 2. The system as defined in claim 1, wherein the screen filter is substantially cylindrical and is removably mounted on a screen-receiving portion of the suction head, the screen filter including an outer screen surface and an inner screen surface, the screen-receiving portion including two spaced-apart holding members over which opposite ends of the screen filter are engaged, the screen filter and the holding members being substantially coaxially disposed with reference to a main axis. 3. The system as defined in claim 2, wherein the holding members are rigidly connected to one another through a perforated cylindrical core coaxially that is substantially disposed with reference to the main axis, the suction head including an annular intervening space between the cylindrical core and the screen filter. 4. The system as defined in claim 3, wherein the screen-washing arrangement includes a plurality of substantially axisymmetric first tubes provided within the annular space between the cylindrical core and the screen filter, each first tube including a corresponding one of the liquid outlets that is oriented substantially towards the inner screen surface of the screen filter. 5. The system as defined in claim 4, wherein each first tube holds a corresponding nozzle. 6. The system as defined in claim 4, wherein the screen-washing arrangement includes a plurality of substantially axisymmetric second tubes provided outside one of the holding members, each second tube including a corresponding one of the liquid outlets that is oriented substantially towards the outer screen surface of the screen filter. 7. The system as defined in claim 6, wherein each outer liquid outlet holds a corresponding nozzle. 8. The system as defined in claim 4, wherein the suction head includes a curved-shaped pipe having a proximal end and a distal end, the proximal end being rigidly connected to one end of the cylindrical core, the proximal end of the curved-shaped pipe removably receiving the distal end of the flexible hose. 9. The system as defined in claim 8, wherein the pressurized liquid circuit includes a circuit subsection extending inside the suction head the circuit subsection having a pressurized-liquid inlet mounted on an outer surface of the curved-shaped pipe. 10. The system as defined in claim 9, wherein the pressurized liquid circuit includes: a liquid pump arrangement in fluid communication with the bottom portion of the liquid matter compartment; anda flexible pressurized-liquid hose removably connected to the pressurized-liquid inlet. 11. The system as defined in claim 1, wherein the solid matter compartment and the liquid matter compartment are both mounted on a chassis of the vehicle. 12. The system as defined in claim 11, wherein the solid matter compartment and the liquid matter compartment are part of a same vacuum tank, the solid matter compartment and the liquid matter compartment being separated by an intervening partition wall located inside the vacuum tank. 13. The system as defined in claim 12, wherein the solid matter compartment is larger in volume than that of the liquid matter compartment, the partition wall being configured to put the upper portion of the solid matter compartment and the upper portion of the liquid matter compartment in direct fluid communication through an upper opening. 14. The system as defined in claim 13, wherein the vacuum pump arrangement is in fluid communication with both the solid matter compartment and the liquid matter compartment.
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이 특허에 인용된 특허 (28)
Woodall George W. (Cary NC) Woodall Damon W. (Fuquay-Varina NC), Apparatus and method for collecting and dewatering the contents of sanitary sewer traps.
Andersen Arne (Kadhojvej 4A DK-8530 Hjortshoj DKX), Method and system for receiving and handling polluted liquids, especially stratified oil products in petrol and oil tank.
Fux Kamil (Schiebel Schmerikon CHX) Gresa Ludwig (Bohlstrasse 6 Uznach CHX), Process for removing solids from a filtering device for the separation of liquids and solids.
Wittmer, Stefan; Linder, Juergen; Welker, Gerhard; Wagner, Marcus, Device for separating a heterogeneous mixture of matter and method for cleaning a filter unit.
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