IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0374489
(1999-08-13)
|
발명자
/ 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
9 인용 특허 :
4 |
초록
▼
The present invention is a screening/washing/dewatering system which utilizes a solids handling pump to vacuum solids captured from a contaminated fluid stream from the system's screening mechanism and to convey them, in a concentrated form and through a closed conduit, to the washing/dewatering mec
The present invention is a screening/washing/dewatering system which utilizes a solids handling pump to vacuum solids captured from a contaminated fluid stream from the system's screening mechanism and to convey them, in a concentrated form and through a closed conduit, to the washing/dewatering mechanism. The use of a solids handling pump enables a screening, washing and dewatering system to contain the captured solids in a completely closed system from their point of capture, through a conveyance system of unlimited length and configuration, to the point that the washed, dewatered screenings are finally discharged. Secondarily, the present invention offers the advantages of being able to capture as small of a solids particle size as is desirable and of providing effective washing and dewatering of the captured particles while minimizing the number of moving parts and maximizing the overall system reliability.
대표청구항
▼
The present invention is a screening/washing/dewatering system which utilizes a solids handling pump to vacuum solids captured from a contaminated fluid stream from the system's screening mechanism and to convey them, in a concentrated form and through a closed conduit, to the washing/dewatering mec
The present invention is a screening/washing/dewatering system which utilizes a solids handling pump to vacuum solids captured from a contaminated fluid stream from the system's screening mechanism and to convey them, in a concentrated form and through a closed conduit, to the washing/dewatering mechanism. The use of a solids handling pump enables a screening, washing and dewatering system to contain the captured solids in a completely closed system from their point of capture, through a conveyance system of unlimited length and configuration, to the point that the washed, dewatered screenings are finally discharged. Secondarily, the present invention offers the advantages of being able to capture as small of a solids particle size as is desirable and of providing effective washing and dewatering of the captured particles while minimizing the number of moving parts and maximizing the overall system reliability. g zone is an amino acid of the formula NH2--R--COOH, and wherein R comprises a basic side chain. 8. The process of claim 5, wherein said amino acid is glycine, present in a concentration which is compatible with its solubility in water at 25° C., or phenylalanine in a concentration of about 0.28 M. 9. The process of claim 5, wherein said amino acid is selected from lysine in a concentration of at least about 1 M, arginine in a concentration in the range of about 0.45 M to about 0.86 M, and histidine in a concentration of at most about 0.27 M. 10. The process of claim 5 wherein said zwitterionic buffer is provided in a concentration that is about 0.3 M or greater. 11. The process of claim 10, wherein said zwitterionic buffer is: TRICINE (N-tris(hydroxymethyl)methyl-glycine); HEPES (N-(2-hydroxyethyl)piperazine-N'-(2-ethane sulphonic acid)); PIPES (piperazine-N-N'-bis(2-ethane sulphonic acid); MOPS (3-(N-morpholino)propane sulphonic acid); TAPS (N-tris(hydroxymethyl)methyl-3-aminopropane sulphonic acid); AMPSO (3-((1,1-dimethyl-2-hydroxyethyl)amino)-2-hydroxy-propane sulphonic acid) TES (N-tris(hydroxymethyl)methyl-2-aminoethane sulphonic acid); BES (N,N'-bis(2-hydroxyethyl)-2-aminoethane sulphonic acid); BICINE (5N,N-bis(2-hydroxyethyl)glycine); CHES (2-(N-cyclohexylamino)ethane sulphonic acid); DIPSO (3-(N,N-bis(2-hydroxyethyl)amino)-2-hydroxy-propane sulphonic acid; EPPS (N-(2-hydroxyethyl)piperazine-N'-(3-propane sulphonic acid)); MOPSO (3-(N-morpholino)propane sulphonic acid); POPSO (piperazine-N,N'-bis(2'hydroxypropane sulphonic acid)); MES (2-morpholinoethane sulphonic acid); or a salt thereof. 12. The process of claim 1 or 2, wherein said ionic compound will migrate during electrophoretic migration. 13. The process of claim 12, wherein said ionic compound is a salt. 14. The process of claim 13, wherein said salt is selected from NaCl, KCl or NaHCO3in a concentration of at least about 1 M, or a boric acid salt in a concentration of at least about 0.15 M, or a phosphoric acid salt or an acetic acid salt in a concentration of at least about 0.5 M. 15. The process of claim 1 wherein said at least one ionic compound capable of reswelling a compressed portion of said loading zone is selected and is provided in a concentration which is sufficient to achieve reswelling in a period of at most about 20% of the period which a voltage is applied to said electrophoresis support. 16. The process of claim 15 wherein said at least one compound capable of reswelling a compressed portion of said loading zone is selected and is provided in a concentration which is sufficient to achieve reswelling in a period of at most about 10% of the period which a voltage is applied to said electrophoresis support. 17. An electrophoresis process for separation of at least one constituent of a sample, comprising the steps of: a) loading a sample onto a loading zone of an electrophoresis support; b) loading a composition onto said loading zone said composition including at least one compound capable of reswelling a compressed portion of said loading zone; c) applying an electric field to said support enabling said at least one sample constituent to migrate. 18. The process of claim 17 further comprising the step of: revealing said at least one constituent of said sample separated by electrophoresis. 19. The process of claim 17, wherein said sample is applied to said support using an applicator thereby creating said compressed portion of said loading zone. 20. The process of claim 19, wherein said sample and said composition are loaded onto said loading zone substantially simultaneously. 21. The process of claim 20, wherein said composition and said sample are mixed prior to loading onto said loading zone. 22. The process of claims 17 or 21 wherein said compound capable of reswelling said compressed portion of said loading zone is an ionic compound, which will remain essentially immobile during electrophoret
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