WO2011029815A1 - Device for densely loading a divided solid into a chamber - Google Patents
Device for densely loading a divided solid into a chamber Download PDFInfo
- Publication number
- WO2011029815A1 WO2011029815A1 PCT/EP2010/063100 EP2010063100W WO2011029815A1 WO 2011029815 A1 WO2011029815 A1 WO 2011029815A1 EP 2010063100 W EP2010063100 W EP 2010063100W WO 2011029815 A1 WO2011029815 A1 WO 2011029815A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- axis
- deflector elements
- shaft
- elements
- divided solid
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/04—Spreading out the materials conveyed over the whole surface to be loaded; Trimming heaps of loose materials
- B65G69/0458—Spreading out the materials conveyed over the whole surface to be loaded; Trimming heaps of loose materials with rotating means, e.g. tables, arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
- B01J8/002—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor with a moving instrument
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
- B01J8/003—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor in a downward flow
Definitions
- the present invention relates to a dense loading device of a solid divided into an enclosure for cooperating with a divided solid feed device arranged to release the solid divided over an access to the enclosure .
- split solid in the context of the present disclosure means a solid in the form of grains or particles, such as cereal grains, in the field of grain transport or storage, granules catalyst in the field of the chemical industry, or granules of fertilizer or wood.
- the loading device according to the invention is preferably of the type comprising a shaft, driven in rotation about an axis X1 with an adjustable rotational speed, and a plurality of rotationally integral deflecting elements. of the tree.
- the deflector elements By falling on the deflector elements, the divided solid is deflected so as to be distributed more or less uniformly over the entire surface of the enclosure in which it is loaded.
- Patent FR 2 431 449 describes an example of a device intended to charge chemical reactors with catalyst, comprising a shaft arranged in a catalyst supply chimney, while being coaxial therewith.
- Series of superposed deflector elements, having the form of strips, are evenly distributed around the shaft being fixed thereto by means of fasteners allowing a modification of the angle defined between the deflector elements and the shaft.
- the deflector elements deviate from the shaft when it is rotated under the effect of the centrifugal force, which facilitates the introduction of the device into chemical reactors whose access is generally restricted.
- the rotational speed of the shaft can be adjusted to control the angle between the baffle elements and the shaft to account for the reactor surface to be coated with catalyst.
- these devices are particularly suitable for loading chemical reactors which are generally cylindrical with a radius of the order of a few meters.
- the pos tive d positio ns of th e r em e nt of n avi res d o ive nt preferably allow to achieve loading rates of between 600 and 2 ⁇ 00 tonnes per hour.
- the devices currently used are more basic since they are simply based on a principle of gravity filling, as in the case of loading tubes, conveyor belts or buckets, and require interventions of the man in progress and at the end of loading to improve the uniformity of the grain distribution.
- "Shiploader" type dischargers are also used which enable the flow of grains during loading to be deflected to distribute the load throughout the enclosure to be filled.
- these outfalls are not suitable for all bulk carrier block geometries.
- all the features that have just been mentioned do not allow to optimize the density of grain loading and thus to completely avoid the problem of ship stability.
- the position of catalyst particles at the surface of the catalytic converter during loading may induce the appearance of firing phenomena in operation, that is to say say of preferential passages, detracting from the efficiency of the desired conversion.
- the consequences can be multiple and involve an acceleration of the rate of piercing of the catalytic bed, a decrease in conversion efficiency, a change in the pressure drop, irregularities in the temperature profile in operation, premature aging of the catalyst.
- a main object of the present invention is to overcome the disadvantages of known loading devices of the prior art, by providing a dense loading device offering greater flexibility in adjusting the various parameters involved in the quality and the uniformity of the particle distribution of a divided solid, while allowing to achieve high loading rates.
- Another object of the present invention is to optimize the density of the loading, the increase of the mass transported in a volume. There is no evidence of obvious economic and environmental benefits.
- the present invention relates more particularly to a device for dense loading of a solid divided into an enclosure meeting the characteristics set out above and further characterized by the fact that its deflector elements have an angle, with reference to the shaft, adjustable independently of the speed of rotation.
- the device according to the invention has operating conditions that can be adjusted precisely according to the geometry of the e ncei nte to cha rger, which perm and incidentally meet the conditions of filling required for the loading of the bulk carriers, with a sufficient flow.
- the device has a shaft which is hollow to define a passage for the divided solid, at least some of the deflector elements having an end arranged at a distance from the axis X1 less than the distance separating the axis. X1 of the hollow shaft.
- the hollow shaft is preferably of generally cylindrical shape, adapted to cooperate with a feed pipe of the feed device of generally cylindrical shape, and has a radius substantially equal to or less than that of the chimney d feeding in order to cooperate with the latter in such a way that the passage in the tree is an exclusive passage of the divided solid.
- the hollow shaft has an opening at its end intended to be located on the side of the enclosure, at least some of the deflector elements having an inner end arranged in the extension of the shaft, next to its opening.
- an even distribution of the divided solid can be provided over the entire surface of the enclosure to be filled, including in the extension of the drive shaft of the deflector elements.
- the density of the load can thus be optimized. As a result, the same vessel will be able to carry a larger amount of divided solid on each trip with reference to the loading methods of the art. In the meantime, there will be some economic and environmental benefits.
- each of the deflector elements may comprise two substantially planar portions connected to each other so as to have the shape of a V in cross section, the planar portions being preferably disjoint in the region of the inner end of each of the deflector elements to define an additional passage for the divided solid.
- adjustment means may be provided to adjust the inclinations of the deflector elements along first and second axes A1 and A2, perpendicular to each other.
- FIG. 1 shows a schematic overview illustrating the principle of loading a ship's hold with a loading device according to the present invention
- FIG. 2 represents a schematic perspective view of a loading device according to a preferred embodiment of the present invention.
- FIG. 3 represents a simplified schematic top view of the loading device of FIG. 2.
- Figure 1 illustrates, without limitation and schematically, the operating principle of the dense loading device according to the present invention.
- the dense loading device 1 is fed cereal grains 2, from a primary storage location, by a handle, generally fixed flow, opening into a chimney 3. It is possible to provide the use of a conventional buffer hopper between the sleeve and the chimney without departing from the scope of the invention.
- the loading device 1, arranged in alignment with the chimney 3, comprises a rotating member 4, gorged with grains from the sleeve, having a plurality of openings (described in more detail in connection with FIG. 2). intended for homogeneous grain distribution on a set of baffle elements 5.
- the grain vein should preferably be exploded to the maximum in order to optimize the distribution of grains before their support by the deflecteu rs elements.
- the grains then fall on the deflector elements which, by their elaborate geometry, separate the grains from each other and distribute them over the entire surface of the enclosure to be loaded, here a ship's hold 7.
- the grains are preferably distributed in the hold in the form of a homogeneous "rain" to allow a regular rise of the grain-grain bed over the entire surface of the hold, ensuring a maximum density of the load.
- the recommended maximum flow / area ratio is of the order of 5 tonnes / hour / m 2 . In other words, in order to obtain an optimal loading of the grains, during one hour of loading, one should not drop more than five tons of grains on a surface of 1 m 2 .
- slopes appear on the grain bed during loading, they should not be greater than 15 degrees. It may be noted that in the case of a slope of the order of 37 degrees, the density gain between a bulk load and a load made with a device according to the invention is zero.
- the loading can be performed without any outside intervention is required to level the bed of cereal grains. Indeed, since there is an external intervention to level the bed of cereal grains, there is a de-densification of the bed, that is to say a decrease in the density of the previously obtained loading.
- the loading rates should be optimized depending on the wedge surfaces. They should be able to reach a value of about 800 tons / hour in instantaneous.
- This device comprises a rotating member 4 connected to the chimney 3 of the grain feed device ister by a cylindrical N upport cylindrical 9.
- the rotating member 4 has the shape of a tree hollow axis X1 and radius substantially equal to or less than the radius of the chimney 3.
- Drive means 10 are provided to drive the hollow shaft 4 in rotation with u u rotation speed ustable. These drive means can be made in any suitable form known from the state of the art.
- Figure 2 there is shown by way of non-limiting illustration a motor 12 engaged with a drive belt 13, optionally toothed, acting on the periphery of the hollow shaft 4 to drive the latter in rotation.
- connection means on the one hand, the cylindrical support 9 to the stack 3 and, on the other hand, the hollow shaft 4 to the cylindrical support 9 can be of any suitable type, known of the state of the art.
- the hollow shaft 4 is rotatably mounted on the cylindrical support 9 by means of a ball bearing or a roller (not shown).
- the hollow shaft 4 is open at its upper end to receive the grains from the stack 3 and also has an opening 14 at its lower end to dump the grains in the enclosure to be filled.
- the hollow shaft 4 carries, in the embodiment shown by way of nonlimiting illustration, six series of three baffle elements 5 superimposed (a series being masked in Figure 2 for clarity), having the shape of blades . It seems that the implementation of eight series may be particularly advantageous in some cases, but the six-series variant has been shown to improve the clarity of the figures.
- These series of blades are distributed regularly around the hollow shaft, being dposposed downstream of the latter. Thus, each blade presents u internal end 16 arranged at a distance from the axis X1 less than the radius of the hollow shaft so as to be placed on the passage of the grains defined by the interior of the hollow shaft.
- Each series of deflector elements is advantageously mechanically connected to the hollow shaft from outside the latter, so as not to impede the passage of grains.
- each series of deflector elements is connected to the hollow shaft by means of a fastening element in the form of an arm 17 having two portions 19, 20 oriented substantially in the direction of the axis.
- X1 (only one arm 17 has been shown in Figure 2 for the sake of clarity).
- One of these portions 19 comprises an adjusting device 22 arranged to adjust its length and thus modify the longitudinal inclination of the corresponding deflecting elements, relative to the axis X1, by rotation along a first axis A1 orthogonal to the latter, the length of the other portion 20 being fixed.
- the adjustment device 22 may be in the form of a cylinder or in any other suitable form known from the state of the art, such as for example a worm cooperating with a thread integral with the deflector elements.
- the longitudinal inclination is the same for all the deflector elements of the same series, or for all the deflector elements of all series.
- the second portion 20 may advantageously comprise a wheel 24 cooperating with notched axes 25 secured to the deflector elements of a given series and allowing, by rotation of each of these axes along an axis A2 orthogonal to the first axis A1 , to modify the transverse inclination of the deflector elements.
- the transverse inclination of the deflector elements is preferably the same for all the deflecting elements of the same series, or even for all the deflector elements of all series.
- a motor 26 may be arranged to rotate the wheel 24 being controlled remotely.
- the skilled person will not encounter any particular difficulty to adapt the present teaching to his own needs by using alternative means known to ensure the assembly of the deflector elements on the hollow shaft, without departing from the scope of the present invention.
- each of the deflector elements comprises two portions 28 and 29, substantially flat and inclined relative to each other so as to have the shape of a V in cross section.
- the portions 28, 29 are disjoint in the region of the inner end of the corresponding baffle element to define an additional passage 30 so that the divided solid can be poured onto each of the baffle elements of the same series from from the one closest to the hollow tree.
- each portion 28 or 29 may have a trapezoidal shape being secured to the other portion by one of its long sides in the region located near the large base, that is to say its base which is furthest from the axis X1.
- the deflector elements may be made with a rectangular or curved section, in a rigid, semi-rigid or flexible material without departing from the scope of the present invention, such as, for example and without limitation, metal, plastic, rubber, reinforced rubber or a composite material.
- the two portions 28, 29 may be made of different materials depending on the nature of the divided solid and the geometry of the enclosure to load. In the case of implementation of the device in a marine environment, the selected materials will preferably have suitable properties to withstand the demanding conditions such as the presence of significant salt.
- additional adjustment means are preferably provided to adjust the way in which the divided solid particles are poured from the hollow shaft 4 to the deflector elements 5.
- the opening 14 of the hollow shaft may be advantageously provided with means for adjusting its size, such as a diaphragm 32, as is more particularly apparent from Figure 3 which shows the device of the figure 2 in a schematic view from above.
- the hollow shaft 4 is also provided with a plurality of lateral openings 34, arranged in alignment with the series of deflector elements in the direction of the axis X1.
- Each of these lateral openings 34 has an adjustable opening size by means of a flap 35 whose inclination can be adjusted independently of that of the other flaps.
- the dense loading device provides a very great flexibility to allow the adaptation of its operating properties according to the geometric characteristics of the enclosure to be filled, as well as depending on the nature of the divided solid to be loaded.
- the adjustment characteristics make it possible to adjust the operating parameters of the device being loaded to take into account, in particular, the rise of the grain bed.
- the device according to the invention advantageously makes it possible to modify the longitudinal inclination of the deflector elements without modifying the speed of rotation.
- the dense loading device by its end user, it is possible to provide tables of adjustment data made available to the user to indicate how to adjust the various parameters of the device ( longitudinal and transverse inclinations of the deflector elements, sizes of the central 14 and lateral openings 34) as a function of the geometry of the enclosure to be filled and the exact nature of the divided solid to be loaded (taking into account, in particular, the density of a given cereal for example, since this value also influences the way in which the loading takes place).
- a solid shaft of small radius instead of the hollow shaft, while ensuring that the longitudinal inclination of the deflector elements remains adjustable regardless of the speed of rotation of the tree.
- the use of a hollow shaft is preferred insofar as it makes it possible to eliminate any constraint on the passage of the divided solid to be charged until the latter comes into contact with the deflector elements.
- the fact that the depressed soil flows through the hollow shaft allows a rotational component to be imparted at the speed of its particles before they fall on them. deflecting elements, thus reducing the risk of attrition of these particles.
- the invention is also applicable in the petroleum, chemical and pharmaceutical industries, the loading of grains, for example catalysts, in an enclosure such as a reactor.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Ship Loading And Unloading (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2772819A CA2772819A1 (en) | 2009-09-09 | 2010-09-07 | Device for densely loading a divided solid into a chamber |
BR112012005429A BR112012005429A2 (en) | 2009-09-09 | 2010-09-07 | dense loading device of a solid divided into a compartment |
EP10760281A EP2475602A1 (en) | 2009-09-09 | 2010-09-07 | Device for densely loading a divided solid into a chamber |
US13/395,144 US20120205007A1 (en) | 2009-09-09 | 2010-09-07 | Device for densely loading a divided solid into a chamber |
CN2010800476037A CN102712429A (en) | 2009-09-09 | 2010-09-07 | Device for densely loading a divided solid into a chamber |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0956129 | 2009-09-09 | ||
FR0956129A FR2949755B1 (en) | 2009-09-09 | 2009-09-09 | DEVICE FOR LOADING DENSE OF A DIVIDED SOLID IN AN ENCLOSURE |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011029815A1 true WO2011029815A1 (en) | 2011-03-17 |
Family
ID=42112008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/063100 WO2011029815A1 (en) | 2009-09-09 | 2010-09-07 | Device for densely loading a divided solid into a chamber |
Country Status (7)
Country | Link |
---|---|
US (1) | US20120205007A1 (en) |
EP (1) | EP2475602A1 (en) |
CN (1) | CN102712429A (en) |
BR (1) | BR112012005429A2 (en) |
CA (1) | CA2772819A1 (en) |
FR (1) | FR2949755B1 (en) |
WO (1) | WO2011029815A1 (en) |
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EP3436187B1 (en) | 2016-03-31 | 2020-06-17 | TIME Global Solution GmbH | Device for filling a container with a particle-form material |
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CN102836674B (en) * | 2012-09-27 | 2015-01-14 | 常州大学 | Automatic filling method of catalyst |
FR3006205B1 (en) * | 2013-05-30 | 2016-11-18 | Total Raffinage Chimie | POWER SUPPLY OF A DISTRIBUTION DEVICE FOR CHARGING AN ENCLOSURE IN SOLID PARTICLES. |
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FR3083527B1 (en) * | 2018-07-04 | 2022-09-02 | Crealyst Group | COMPENSATED FLOW FILLING SYSTEM |
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GB2582732B (en) * | 2018-12-10 | 2022-08-24 | Douwe Egberts Bv | Powder dispensers and methods of dispensing powder |
FR3091490B1 (en) | 2019-01-04 | 2021-01-29 | Total Raffinage Chimie | Distribution of solid particles in an enclosure |
FR3091491B1 (en) * | 2019-01-04 | 2022-08-12 | Total Raffinage Chimie | Distribution of solid particles in a reactor |
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2009
- 2009-09-09 FR FR0956129A patent/FR2949755B1/en not_active Expired - Fee Related
-
2010
- 2010-09-07 BR BR112012005429A patent/BR112012005429A2/en not_active Application Discontinuation
- 2010-09-07 CA CA2772819A patent/CA2772819A1/en not_active Abandoned
- 2010-09-07 EP EP10760281A patent/EP2475602A1/en not_active Withdrawn
- 2010-09-07 US US13/395,144 patent/US20120205007A1/en not_active Abandoned
- 2010-09-07 WO PCT/EP2010/063100 patent/WO2011029815A1/en active Application Filing
- 2010-09-07 CN CN2010800476037A patent/CN102712429A/en active Pending
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103569379A (en) * | 2012-07-26 | 2014-02-12 | 南京永腾化工装备有限公司 | Homogenization distributor |
EP3436187B1 (en) | 2016-03-31 | 2020-06-17 | TIME Global Solution GmbH | Device for filling a container with a particle-form material |
Also Published As
Publication number | Publication date |
---|---|
CN102712429A (en) | 2012-10-03 |
FR2949755B1 (en) | 2012-09-28 |
EP2475602A1 (en) | 2012-07-18 |
FR2949755A1 (en) | 2011-03-11 |
BR112012005429A2 (en) | 2016-04-12 |
CA2772819A1 (en) | 2011-03-17 |
US20120205007A1 (en) | 2012-08-16 |
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