IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0155996
(2008-06-12)
|
등록번호 |
US-8360691
(2013-01-29)
|
우선권정보 |
IT-VR2007A0083 (2007-06-12) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
인용정보 |
피인용 횟수 :
21 인용 특허 :
4 |
초록
▼
A plant for transport of granular material comprising container for granular material to be transported, receiver-meter group designed to receive granular material from container, conveyance duct of granular material from container to receiver-meter group, depressurization-pressurization means arran
A plant for transport of granular material comprising container for granular material to be transported, receiver-meter group designed to receive granular material from container, conveyance duct of granular material from container to receiver-meter group, depressurization-pressurization means arranged to suction/inject a gaseous medium from/into container, and vacuum duct between receiver-meter group and depressurization-pressurization means, thereby creating a flow of granular material and gaseous medium in at least one conveyance duct or line directed to receiver-meter group and a flow of gaseous medium between receiver-meter group and depressurization-pressurization means, the plant comprising detection means of parameters of flow located in vacuum duct or line, adjusting means of the power of depressurization/pressurization means and electronic control means designed to receive in input control signals from speed detection means and to emit control signals in output for driving adjusting means.
대표청구항
▼
1. A plant for the transport of plastic granular material, comprising: at least one container for plastic granular material to be transported,at least one or more receiver-meters corresponding in number with said containersone or more conveyance ducts corresponding in number with said containers eac
1. A plant for the transport of plastic granular material, comprising: at least one container for plastic granular material to be transported,at least one or more receiver-meters corresponding in number with said containersone or more conveyance ducts corresponding in number with said containers each of which being in fluid connection with said corresponding container and said corresponding receiver meter,depressurization structure for creating a relative vacuum,at least one vacuum duct corresponding in number with said receiver-meters and being in fluid connection with said depressurization structure and said corresponding receiver-meter,each of said conveyance ducts being in fluid connection with said corresponding vacuum duct through said corresponding receiver-meter,a speed detection structure located in each of said vacuum ducts,a motorized valve vacuum regulating structure in fluid connection with each of said receiver meters,an electronic speed detection control unit structure in communication with said speed detection structure,said depressurization structure, said receiver-meters, and said vacuum regulating structure,and a cleaning valve in fluid connection with each of said conveyance ducts,wherein a flow of plastic granular material from each of said containers can be individually continuously and automatically adjusted. 2. A plant according to claim 1, wherein said depressurization structure comprises at least one rotatable component actuated by an electric motor and a power adjusting structure having at least one rotation speed variation device of at least one rotating component of said depressurization structure. 3. A plant according to claim 2, wherein said power adjusting structure comprises an inverter to vary the frequency of power supply current to said electric motor in said depressurization structure. 4. A plant according to claim 1, wherein said depressurization structure comprises at least one vacuum pump. 5. A plant according to claim 1, wherein said speed detection structure comprises measuring structure of air speed. 6. A plant according to claim 5, wherein speed detection structure comprises at least one flow rate meter. 7. A plant according to claim 1, comprising at least one reduced pressure storage tank arranged upstream of at least one depressurization structure and in fluid communication with at least one vacuum duct of at least one receiver-meter. 8. A plant according to claim 7, comprising, downstream of said at least one tank, at least one filtering structure through which fluid suctioned from said at least one tank is caused to flow. 9. A plant according to claim 8, comprising: a differential pressure meter structure arranged to measure possible load losses due to obstruction of said at least one filtering structure and to generate respective electrical signals to be sent to electronic control unit. 10. A plant according to claim 9, comprising: a meter structure of the fluid flow rate,a pressure meter structure to measure the pressure in a respective vacuum duct and to send respective signals to the input of said electronic control unit structure, andvalve structure arranged to maintain a correct reduced pressure or vacuum level in a respective vacuum line as well as in a respective receiver-meter. 11. A plant according to claim 1, comprising in each conveyance line, a respective detection structure of the speed of the granular material which moves inside its respective conveyance duct, said detection structure being intended to send a signal to said electronic control unit structure. 12. A plant according to claim 1, comprising a user interface video unit and data insertion structure, said user interface being intended to store, in said electronic control unit structure, treatment parameters and characteristics related to the granular material(s) to be treated. 13. A plant according to claim 1, wherein said electronic control unit structure comprises a storage portion designed to store characteristic data of the transport speed progression of specific granular materials.
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