Device for loading solid particles into an enclosure
The invention relates to a device for loading solid particles into an enclosure, including: a means for supplying solid particles to be dispensed, which can be arranged on the top part of the enclosure to be loaded and which pours the solid particles in a substantially vertical manner into a feeding pipe ( 1 ); a mobile device ( 2 ) disposed entirely or partially inside the enclosure and under the feeding pipe, including a central shaft ( 3 ) rotatably driven by a motor means ( 4 ) about a substantially vertical axis and deflector elements ( 6 ) having a substantially identical shape and being rotatably secured to the shaft ( 3 ), preferably arranged in line with one another at different heights about the shaft ( 3 ) and pivotably connected thereto so that they can be raised, for example by centrifugal force; and a feeding pipe ( 1 ) at least partially surrounding said central shaft ( 3 ) and comprising at least one opening ( 5 ) for discharging the solid particles, which opening is provided on the horizontal or side wall thereof. The invention is characterized in that the device includes at least one deflector element ( 7 ) disposed on the rotatably driven shaft ( 3 ), the width of said deflector element ( 7 ) close to the shaft ( 3 ) being less than that of the other deflector elements ( 6 ), in particular the width of the element close to the shaft is smaller than that of the other deflector elements. The invention also relates to a use of said device and to a loading method involving said device.
1. A device for loading solid particles into an enclosure, comprising:
a means for feeding solid particles to be distributed, adapted to be positioned on an upper part of the enclosure to be loaded;
a feed conduit which includes a lateral wall, a horizontal wall, and at least one aperture located on the lateral wall or the horizontal wall for the discharge of the solid particles, the means discharging the solid particles in a vertical direction into a feed conduit,
a moving device, positioned wholly or partially inside the enclosure under the feed conduit, comprising
a drive means;
a vertical central shaft rotated by the drive means about a vertical axis, the central shaft being surrounded by the feed conduit;
a plurality of deflector elements of identical shape, fixed to the central shaft with respect to rotation, and arranged on a plurality of levels around the central shaft such that the plurality of deflector elements are positioned directly above or below each other, and pivotably connected to the central shaft in such a way that the plurality of deflector elements can be raised by the action of centrifugal force,
at least one modified deflector element positioned on the central shaft in which a surface area and a width of a region of the at least one modified deflector element located at a position between 10% and 50% of a total length of the at least one modified deflector element measured from a tip of the deflector connected to the central shaft is smaller than a surface area and a width of a corresponding region of each of the plurality of deflector elements other than the at least one modified deflector element.
2. The device as claimed in claim 1 , characterized in that the plurality of deflector elements are strips made from semi-rigid rubber.
3. The device as claimed in claim 1 , characterized in that the plurality of deflector elements are arranged on three levels around the central shaft.
4. The device as claimed in claim 1 , characterized in that the device includes two modified deflector elements.
5. The device as claimed in claim 1 , characterized in that a plurality of the at least one modified deflector element are positioned on the same level.
6. The device as claimed in claim 1 , characterized in that the decrease in the width of the at least one modified deflector element is in the range from 20% to 80%, of an initial width of the at least one modified deflector element.
7. The device as claimed in claim 1 , characterized in that the plurality of the deflector elements are positioned symmetrically on the central shaft.
8. The device as claimed in claim 1 , characterized in that the plurality of the deflector elements are equally distributed at each of the plurality of levels.
9. The device as claimed in claim 1 , characterized in that eight deflector elements are positioned at each of the plurality of levels.
10. The device as claimed in claim 1 , characterized in that a void ratio of the deflector elements is in the range from 30% to 80%.
11. The device as claimed in claim 1 , characterized in that the central shaft can be a solid tube or a hollow tube.
12. The device as claimed in claim 1 , characterized in that the rotation speed of each of the plurality of the deflector elements is in the range from 25 to 250 rpm.
13. A method for loading petroleum, chemical or petrochemical reactor, comprising a step of loading solid particles into the reactor via the device as claimed in claim 1 .
14. The device as claimed in claim 1 , characterized in that the device includes four modified deflector elements.
15. The device as claimed in claim 1 , characterized in that the device includes eight modified deflector elements.
16. The device as claimed in claim 1 , characterized in that a plurality of the at least one modified deflector elements are positioned on a third of the plurality of level.
17. The device as claimed in claim 1 , characterized in that a plurality of the at least one modified deflector elements are positioned on a lowest of the plurality of levels.
18. The device as claimed in claim 1 , characterized in that the decrease in the width of the at least one modified deflector element is located at the position between 20% to 40% of the total length of the at least one modified deflector element.
19. The device as claimed in claim 18 , characterized in that the decrease in the width of the at least one modified deflector element is located at the position between 20% to 30% of the total length of the at least one modified deflector element.
20. The device as claimed in claim 12 , characterized in that the rotation speed of each of the plurality of deflector elements is in the range from 40 to 150 rpm.
21. The device as claimed in claim 6 , characterized in that the decrease in the width of the at least one modified deflector element is in the range from 30% to 70%, of the initial width of the at least one modified deflector element.