Radiant device for internal use in mills

Abstract

A radiating device (1, 1bis) configured to be placed with respect to a jar (2) at a distance between 0.01 mm and 50 cm and comprising a plurality of LED light sources of the RGB, UV, IR type, placed inside recesses (1a), said radiant device (1, 1bis) being placed in a removable manner inside a mill (7) to allow the irradiation of the jar (2) by the LED light source.

Description

[0001] RADIANT DEVICE FOR INTERNAL USE IN MILLS

[0002] DESCRIPTION

[0003] TECHNICAL FIELD

[0004] The present invention refers to the field of chemical synthesis, i.e. it is related to the field of chemical processes that activate reacting substances, also defined as precursors, by light / mechanical means to obtain the desired products. More specifically, the present invention refers to a radiant device for jars that can be inserted inside a mill and capable of promoting a simultaneous photochemical and mechanical activation of the substances inserted inside the jar.

[0005] STATE OF THE ART

[0006] Nowadays it is known that in the chemical field the main problem lies in obtaining industrially applicable reactions that are able to result in a low environmental impact and a low energy impact.

[0007] The techniques currently known and which allow this are:

[0008] • photochemistry (httDs: / / it.wikiDedia.orq / wiki / Fotochimica) is a branch of chemistry that deals with chemical reactions induced by the interaction of light (in particular ultraviolet, visible light and infrared) with the material.

[0009] • mechanochemistry (httDs: / / it.wikiDedia.orq / wiki / Meccanochimica) is the branch that studies chemical reactions induced by mechanical phenomena.

[0010] Normally, in mechanochemistry, chemical reactions take place through the introduction of reacting substances (or precursors) and grinding media (in the form of small spheres also called balls) inside jars, intended as containers, which in turn are inserted into mills of different types and are subjected to agitation or, in the case of photochemistry, activated by light to obtain the finished product.

[0011] At the state of the art, it is known that there have been attempts to combine the two techniques, but they have not led to the desired results.

[0012] Among the attempts we find:

[0013] 1 . The use of decorative LED strips placed around a transparent jar. This technique involves the use of LED strips of varying lengths that are wrapped around a glass, quartz or PMMA (Polymethylmethacrylate) jar in direct contact with the jar itself. The disadvantage of using this technique lies in the difficulty of correctly reproducing the reaction and in the duration of the instrumentation because:

[0014] • for instance, the PMMA jars currently on the market are not insulated from external light sources which could interfere in an uncontrolled way in the reaction and / or heat the jar to the point of causing it to melt during grinding;

[0015] • the continuous oscillations of the mill arm wear out the power cable of the LED strips to the point of breaking it due to the continuous tensions that it undergoes during operation;

[0016] • the decorative strips used contain a variable number of LEDs or can be arranged with a variable number of windings around the jar and are therefore directly in contact with the external surface resulting in the aforementioned drawbacks.

[0017] 2. The use of LED lamps or other external LED devices pointed towards a PMMA jar with bypass of the mills' safety cover. This technique involves the use of lamps or other LED devices, placed at an unspecified distance from the jar, which irradiate the jar itself to provide the necessary light. This technique has the following disadvantages: • the light radiation is diffused in the space between the lamp and the jar;

[0018] • the systems provided are bulky and require adequate space to be positioned.

[0019] • the mills work with the lid open, thus putting the safety of the operator and the integrity of the machinery itself at risk;

[0020] • as with the previous solution, external factors such as light and temperature can act uncontrollably during the synthesis process.

[0021] 3. The separate use of photochemical and mechanochemical techniques consecutively. The use of the two separate techniques takes place by combining an initial grinding of the substances with subsequent recovery from the jars, and then they are inserted back into a photoreactor. This solution also involves an inverse combination of the two techniques with a first activation of the substances in the photoreactor which are then separated from the solvents, and finally placed in jars to be ground. The use of the two techniques, photochemical and mechanochemical, separately does not guarantee process uniformity, involves a lengthening of the process itself, and does not preserve the synthesis process from environmental interference.

[0022] 4. The use of a rotating glass rod inside a vial bottle irradiated by LED light. In this case, the reagents are placed inside a glass bottle or tube irradiated by a suitable light source, inside which there is also a glass rod that is rotated along its axis at high speed to provide mechanical energy, creating friction between the walls of the container and the rod. This technique combines the use of photochemistry with a method that simulates the use of an extruder rather than a mill. Extruders, unlike mills, provide mechanical energy through the friction created between a grinding wheel, connected to a rotor, and the walls of the reactor. The disadvantage of this technique lies in the lack of safety of the chemical process as the glass does not have the technical characteristics to be able to withstand the frictional forces that are generated between the walls of the container and the rod for a long time and is therefore unsuitable for use that does not involve reactor protection. Similarly to the above, it is poorly insulated from external light or thermal sources.

[0023] 5. The use of vial bottles of irradiated glass combined with vortex shakers. In this technique, the glass vial bottle containing the reagents is placed under strong agitation using a vortex shaker and irradiated by an LED lamp. The use of the vortex shaker, in addition to not allowing the device to be secured, does not even guarantee the achievement of the high energies provided by the mills, allowing only constant agitation and making the activation of the reagents mainly photochemical rather than photomechanochemical.

[0024] 6. The use of mechanophores which are mechanically active molecules wherein specific chemical reactions are generated when they are compressed or stretched with a certain force. In this methodology, the reagents are placed inside normal mill jars together with substances called mechanophores. The disadvantage of using this technique is that mechanophores: o need a precise amount of energy to be activated and provide adequate light radiation; o are organic molecules and therefore could chemically interfere in the reaction; o reduce the useful space inside the jar with their volume.

[0025] 7. The use of a metal jacket equipped with UV LEDs around the arms of the mill to which the jars are connected. This technique consists of covering quartz jars with a voluminous metal jacket containing UV LEDs inside. The jacket embraces both arms of the mill to which the jars are connected, allowing them to be irradiated. The use of this technique has the following disadvantages:

[0026] - a modification of the machinery by bypassing the closing cover;

[0027] - an adjustment of the internal volume of the device as it is necessary to take into account the space necessary for the movement of the mill arms so that the latter does not have impediments or wear during operation;

[0028] - the jacket, being made of metal, does not guarantee electrical or thermal insulation;

[0029] - there is no possibility of controlling the internal temperature and light output.

[0030] In shaker type mills, the grinding jars are filled with the substances to be ground and the grinding medium in the form of balls. Once fixed to the mill, the jars are shaken rapidly (horizontally or vertically) at a frequency that can reach up to 60 Hz, leading to the pulverization of the substances thanks to the impact and friction of the balls. The sample is also carefully mixed by the movements of the jar and balls.

[0031] A variant of this type of mill is represented by the shaker type mill, SPEX8000 wherein the jars are shaken simultaneously according to an angular and rotational harmonic movement on the equatorial plane, describing the shape of an "eight". Shaker mills are suitable for gram-scale laboratory production.

[0032] In planetary mills, the jars, filled with the substances to be ground and their respective balls, move according to a movement comparable to that of a planet around the sun. The jars are mounted on a rotating disk (so-called solar wheel) that rotates clockwise at an angular frequency 'W and counterclockwise with respect to its axis at an angular frequency "cor".

[0033] These mills can accommodate from 1 to 4 jars at the same time, depending on the model, guaranteeing a capacity between 15 and 500 mL. Planetary mills are suitable for carrying out chemical syntheses in parallel going beyond the laboratory production scale. Through the use of adapters, which allow the housing of several vials (or test tubes) instead of the classic jars, it is possible to carry out up to 48 chemical syntheses at the same time.

[0034] All the methodologies known to the state of the art imply that the mills used in mechanochemistry must be combined with devices capable of providing the desired light radiation which, however, due to the volume of the latter, require a bypass of the safety closure of the mill cover. Therefore, known mills need structural modifications in order to allow the use of light radiation.

[0035] AIMS AND SUMMARY OF THE INVENTION

[0036] The aim of the present invention is to solve the problems of devices known at the state of the art that imply the simultaneous use of photochemistry and mechanochemistry, by devising a radiant device to be positioned near a jar.

[0037] A further aim of the present invention is to devise a radiant device for jars capable of combining the advantages given by photochemistry with the advantages given by mechanochemistry.

[0038] Another aim of the present invention is to devise a radiant device for jars capable of covering all light spectra in order to provide different types of light radiation to the jar, from visible light to ultraviolet or even infrared.

[0039] Another aim of the present invention is to devise a radiant device for jars that is able to ensure that light activation takes place with a reduced consumption of solvents or energy.

[0040] Another aim of the present invention is to devise a radiant device for jars that can be universally applied to any type of mill known at the state of the art.

[0041] Another aim of the present invention is to devise a radiant device for jars capable of shortening the optical path of light compared to known devices.

[0042] Another aim of the present invention is to devise a radiant device for jars capable of constituting an accessory that can be removed from the mill.

[0043] Last but not least, the aim of the present invention is to devise a radiant device for jars that allows the control of parameters such as the intensity and frequency of light (control PWM_Pulse Width Modulation) provided and the temperature at which the reaction takes place, parameters necessary for the repeatability of the reaction conditions and the reproducibility of the chemical processes themselves.

[0044] These aims are obtained by means of a radiating device configured to be placed near a jar at a distance from the latter in the range of 0.01 mm - 50 cm, said radiant device being applicable to all mills known at the state of the art and which allow the combination of mechanochemical and photochemical synthesis methods through a control of the synthesis parameters.

[0045] Depending on the mill wherein it is to be inserted, the radiant device can be chosen between a first form of construction represented by a jacket, i.e. a radiant device configured to be placed near a side surface of a jar, and a second form of construction represented by a two-dimensional matrix configured to be placed on a mill lid and near a jar.

[0046] The present radiating devices therefore allow an irradiation of the jar and the substances inside it.

[0047] According to a preferred embodiment, the jacket is made of a choice of a dark opaque polymer material chosen among: Polypropylene (PP), Polylactic Acid (PLA), Nylon, Acrylonitrile Butadiene Styrene (ABS) copolymer, Polycarbonate (PC). These jackets are configured to coat jars in Polymethyl methacrylate (PMMA) or other transparent material (such as Glass, Quartz, Polyamide (PA), Polymethylpentene (PMP), Polystyrene (PS), Amorphous Polypropylene, and other polymers / copolymers with low crystallinity or with induced transparency).

[0048] The material the radiating devices are made of insulates the jar from external light and thermal interference, and isolates the operator from contact with the electrical part or with the conductive parts. According to a first preferred embodiment, the jackets comprise LEDs, a thermal sensor combined with a power supply system and digital control of the functions and an adjustable adapter for applicability on all shaker type mills.

[0049] The LEDs arranged directly on the jacket allow the light activation of the material inside the jar to be direct and not diffused, therefore the optical path of the light in the direction of the photosensitive material is shorter than in known techniques.

[0050] Advantageously, the LEDs of the jackets are of three different types: RGB (Red, Green, Blue), UV (ultraviolet) and INFRARED (IR).

[0051] In this way, LED jackets are able to cover all wavelengths that can be used for chemical reactions.

[0052] Advantageously, LED jackets are connected to a control device by means of a connection plate.

[0053] This allows to keep an eye on the operating parameters of the LED jacket.

[0054] According to a second embodiment, the two-dimensional matrix comprises a built-in network of RGB, UV and IR LEDs wherein network means a system wherein the various types of LEDs cooperate with each other in order to irradiate the jar.

[0055] The network allows an irradiation of the jars and substances inside it.

[0056] The two-dimensional matrix is advantageously connected to the control device but does not require the connection plate for its connection to the latter.

[0057] Preferably the two-dimensional matrix can be applied both in shaker type mills and in planetary type mills.

[0058] According to a first aspect, the problem set out above is solved by a radiant device for jars as defined by claim 1 and its preferential embodiments, defined by dependent claims 2-11 .

[0059] BRIEF DESCRIPTION OF THE DRAWINGS

[0060] The present invention is described in detail below, by way of non-limiting example, with reference to the attached drawings, wherein: o Figure 1 shows an axonometric exploded view of a jar configured to be inserted inside a radiating device according to a first embodiment; o Figure 2 shows an axonometric view of a jar inserted inside a radiant device; o Figure 3 shows an axonometric view of a radiating device containing a jar configured to be connected to a connection plate; o Figure 4A shows a front view of the sliding connections of an RGB LED radiating device; o Figure 4B shows a front view of the sliding connections of a UV / IR LED radiating device; o Figure 5 shows an axonometric view of a radiating device containing a jar and connected to a connecting plate; o Figure 6 shows an axonometric view of the radiating device in Fig. 5 configured to be connected to a mechanical handling system or arm; o Figure 7 shows an axonometric view of a radiating device in fig. 6 connected to a mechanical handling system or arm; o Figure 8 shows an axonometric view of the jar / radiating device / arm system connected to a mill; o Figure 9 shows an adapter for the radiating device in axonometric view; o Figure 10 shows the adapter for the radiant device in fig. 8 connected to the mill in axonometric view; o Figure 1 1 A shows a control device in a first axonometric view; o Figure 1 1 B shows the control device in fig. 1 1 A in a second axonometric view; o Figure 12A shows a mill and a radiant device in front view according to a second embodiment; o Figure 12B shows in axonometric view what is depicted in fig. 12A.

[0061] DETAILED DESCRIPTION

[0062] While the invention is susceptible to various modifications and alternative constructions, some particular forms of realization are shown in the drawings and will be described below in detail. In this description, similar or identical elements or components will be indicated in the figures with the same identification symbol.

[0063] The subject of this patent application is a radiant device 1 , 1 bis for jars configured to be placed with respect to a jar 2 at a distance in the range of 0.01 mm - 50 cm.

[0064] The radiant device 1 , I bis, depending on the type of mill 7 inside which it is to be inserted, can be chosen between a first form of construction represented by a jacket 1 , i.e. a radiant device configured to be placed near a lateral surface of a jar 2, and a second form of construction represented by a two-dimensional matrix I bis configured to be placed on a lid of a mill 7 and near a jar 2.

[0065] Preferably jacket 1 is placed with respect to a jar 2 at a distance between 0.01 mm and 1 mm.

[0066] Preferably the two-dimensional matrix 1 bis is placed with respect to a jar 2 at a distance between 20 cm and 50 cm. The jar 2 is known to be state-of-the-art and can take different shapes, i.e. cylindrical, parallepipedal or any other known shape. Therefore, the radiant device in the form of jacket 1 can be of different shapes assuming the same shape as jar 2.

[0067] Inside jar 2 there are materials to be treated such as, but not limited to, inorganic / organic compounds, polymers, biological materials or other chemical products generally known to the state of the art. The jars 2 are then inserted in a removable way inside a mill 7 comprising a motor and a mechanical stirring system. Inside jar 2 the reaction of the material to be treated develops. The reaction that takes place is a photo-mechanochemical reaction wherein the material is simultaneously subjected to mechanical agitation but also to a light activation provided by the radiant device 1 , I bis used.

[0068] It is to be understood that jar 2 means a container while mill 7 means a machine inside which there is a motor and a mechanical system, comprising arms that transmit movement, wherein jars 2 are connected in a removable way to these arms.

[0069] The material the jar 2 is made of varies according to the type of material to be treated, differing in particular for hard and / or brittle and / or malleable materials. For instance, subjecting hard but fragile materials to high mechanical agitation would risk breaking jar 2 inside which the precursor materials and balls are contained.

[0070] As can be seen in Fig. 1 , the radiating device according to the first form of jacket 1 construction is an openable cylindrical body, comprising a side surface 11, a base surface 1 " and a head surface 1Hl. Preferably, but not limited to, the opening of the jacket 1 is placed on the side surface 1 The lateral surface 11of the jacket 1 in the internal part comprises a plurality of recesses 1 a inside which light sources such as LEDs are placed. This jacket 1 of Fig. 2 is configured to contain a jar 2 inside a seat, which is instead a cylindrical body, which can be opened in the middle part or alternatively in the upper part, inside which aliquots of the reacting chemical substances are contained together with a grinding medium in the form of spheres or balls. The jar 2, being placed inside the jacket 1 , is in direct contact with the light source.

[0071] Jacket 1 comprises on the head surface 1Hlfixing bars 1 b which are configured to hook onto a connection plate 3 (see Fig. 5) which in turn therefore connects jacket 1 to the mechanical handling system 4 of the mill 7.

[0072] Jacket 1 gives the advantage that it is possible to adjust, through the control device 6, the power of the light sources, preventing the jars 2 from heating up too much to the point of melting. With jacket 1 it is therefore possible to provide both a much finer regulation of the power of the LEDs and a direct irradiation of the jar 2 without the light having to travel a rather long optical path as in the cases, known at the state of the art, wherein the LEDs are mounted on an external lamp.

[0073] Contrary to the state of the art wherein the LED strips were mounted directly on the wall of the jar, in the present patent application the light sources, according to a first embodiment, are instead mounted directly on the jacket 1 . The LED strip mounted directly on the jar involves considerable problems comprising: since the mill is a moving system, the possibility that the LED strip will break due to agitation is very high, moreover the LED strip is not fixed on the wall of the jar, therefore, the possibility that it may detach leads to the incorrect reproducibility of the stirring operation. The jacket 1 covered by this patent application therefore overcomes the problems known at the state of the art as the LEDs can be adjusted in power, are in direct contact with jar 2 and moreover do not accidentally detach or break and can also be adjusted according to the need for intensity or temperature.

[0074] The 1 jackets, belonging to the first embodiment (referred to in variant A), are three, preferably made in three different ways: o jacket 1 with infrared light sources; o jacket 1 with light sources for visible light; o jacket 1 with ultraviolet light sources.

[0075] Depending on the three different modes mentioned above, jacket 1 of Fig. 3, 4A and 4B also comprises: o sliding electrical contacts for temperature control 9 o sliding RGB LED electrical contacts 10 o sliding LED UV or IR electrical contacts 1 1 each representing the copper contacts that exploit the contact between two opposite parties to ensure electrical continuity.

[0076] In detail, in the event that jacket 1 provides only RGB LEDs, then the contacts will only be of the RGB LED type 10 while in the event that jacket 1 provides only UV or IR LEDs, then the contacts will only be of the UV or IR LED type 11 . The connection plate

[0077] 3 can be used indifferently for jackets with RGB LEDs as well as UV or IR LEDs, so it comprises both RGB LED sliding electrical contacts 10 and UV or IR LED sliding electrical contacts 1 1 .

[0078] Jacket 1 , which is the subject of this patent application, for mill 7, inside which it is inserted, is an accessory that can be easily removed since, upstream, mill 7 did not have to undergo modifications for its insertion.

[0079] Jacket 1 , inside which jar 2 is inserted, is connected to a mechanical handling system

[0080] 4 of the mill. The mechanical handling system 4 (see Figures 6-8) consists of an arm that grips a jacket surface 1 and a connecting plate 3.

[0081] This connection plate 3 is interposed between the mechanical handling system 4 and the head surface 1111and is configured to be connected to a control device 6. The connection between the plate 3 and the control device 6 is made by means of a spiral cable 5 capable of following and cushioning the movement it undergoes as a result of the agitation of the mill 7.

[0082] The jar 2, being placed inside the jacket 1 , causes the jacket 1 to move together with the jar 2.

[0083] The movement supplied to jar 2 can be of different types:

[0084] • horizontal in the case where the mill is with horizontal mechanical agitation;

[0085] • vertical in the case where the mill is with vertical mechanical agitation;

[0086] • roto translational wherein the mill is of the Spex type where the movement follows the shape of an eight.

[0087] Jacket 1 is therefore adaptable to any type of jar 2 and for any movement to which the jar 2 is subjected. Mill 7, therefore, to house jacket 1 , does not require modifications in the structural part.

[0088] According to a preferred embodiment (Variant A) jacket 1 is made of dark opaque polymeric material such as Polypropylene (PP), Polylactic Acid (PLA), Nylon, copolymer Acrylonitrile Butadiene Styrene (ABS), Polycarbonate (PC) and is configured to coat jars 2 in Polymethylmethacrylate (PMMA) or other transparent material such as Glass, Quartz, Polyamide (PA), Polymethyl pentene (PMP), Polystyrene (PS), amorphous polypropylene, and other polymers / copolymers with low crystallinity or induced transparency). Jacket 1 is equipped with LEDs and a thermal sensor and can also be removed from the mill. Jacket 1 is also combined with a digital power supply and control system of the functions, as well as an adjustable adapter 8 for applicability on different types of mills.

[0089] The LED jacket 1 connected to the jar 2 works with the special connection plate 3 connected to the control device 6. Plate 3 is configured to be fixed to arms 4 of mill 7 to ensure stability and can be connected to the control device 6 via an ultra-thin, spiral cable 5.

[0090] In this preferred embodiment, jacket 1 can be chosen among three different types: a. jacket 1 with RGB LEDs for the use of wavelengths in the visible range (400 < A < 800 nm), with the possibility of choosing the wavelength provided by the LEDs and the possibility of combining them; b. jacket 1 with UV LEDs for the use of wavelengths in the ultraviolet (UV) range (A < 400 nm); c. jacket 1 with infrared LEDs for the use of wavelengths in the infrared range (A

[0091] > 800 nm).

[0092] Jacket 1 allows direct irradiation of jar 2 and the substances inside it. The material jacket 1 is made of insulates jar 2 from external light and thermal interference and isolates the operator from contact with the electrical part or conductive parts.

[0093] Jacket 1 on the 11side surface also comprises 1 c fins configured to ensure better heat dispersion to the internal LED circuit.

[0094] The components described in the embodiment above cannot work without the control device 6.

[0095] This preferred construction is applicable to all shaker type mills but not to planetary type mills.

[0096] According to a further preferred embodiment (Variant B) illustrated in Figures 12A and 12B, the radiating device is a two-dimensional matrix I bis represented by a flat, non- rigid surface equipped with a built-in network of RGB, UV and IR LEDs and probes for reading the temperature. The two-dimensional matrix I bis is fixed inside the lid of the mill 7 by means of fastening elements. These fastening elements are made of material that allows the operator to easily remove the two-dimensional matrix 1 bis from the mill cover 7. An example of such a material that can allow easy removal could be, but not limited to, Velcro.

[0097] The embedded network of LEDs is preferably mounted on a material of the type of synthetic polymer materials used for textiles, which is not electrically conductive and remains flexible. The flexibility of the material is necessary because the two- dimensional matrix I bis is mounted inside the lid of the mill 7 which must be opened and closed without incurring the risk that the two-dimensional matrix 1 bis may break. The LED network allows a diffuse irradiation of jar 2 and the substances inside it.

[0098] The two-dimensional matrix 1 bis, like jacket 1 , also uses the connection cable 5 to the control device 6, but does not require the connection plate 3.

[0099] The two-dimensional matrix I bis is applicable to all mills, shaker and planetary type equipped with jar 2 housing covers such as safety lids.

[0100] The components described for the two-dimensional matrix 1 bis, in the further preferred design, like the components for jacket 1 , cannot work without the control device 6.

[0101] The control device 6 of Figures 1 1 A and 11 B is a device comprising a microcontroller programmed for the regulation and control of the operating parameters of the other parts to which it is connected.

[0102] That control device 6 comprises:

[0103] • a first 6a button for choosing the wavelength for UV / IR LED;

[0104] • a second 6b button for choosing the wavelength for RGB LEDs;

[0105] • a 6c on / off button;

[0106] • a first knob 6d for adjusting the maximum operating temperature;

[0107] • a second knob 6e for adjusting the light intensity;

[0108] • a third knob 6f for adjusting the frequency of the light pulse; • a 6g LCD screen for displaying the parameters;

[0109] • a 6h input for the power supply of the control device 6;

[0110] • at least one 6i output for connecting the power cable and LED adjustment.

[0111] Each type of mill 7 known as shaker is associated with a certain jar 2 of predetermined capacity and when in that same mill 7 jars larger than the predetermined size must be provided for their insertion into the mill, an interposed adapter 8 (see Figures 9 and 10) must be used between the arms 4 and the jacket 1 . The adapter 8 has the function of attaching the jacket 1 when the jar is larger than the pre-established dimensions for the mill 7. The adapter 8 consists of two arms connected to each other by two screwable elements that adjust the distance between the arms themselves. The adapter 8 has the function of attaching to the pre-existing arms 4 of the mill 7, the jacket 1 and the plate 3 containing a jar 2 of a larger size than the predetermined one. According to an embodiment, each control device 6 can be connected to one or more plates 3 and / or to one or more two-dimensional matrices 1 bis.

[0112] Variants to the non-limiting example described are possible, without however leaving the scope of protection of the present invention, comprising all the realizations equivalent for a technician in the field, to the content of the claims.

[0113] From the description above, the technician in the field is able to realize the object of the invention without introducing further construction details.

[0114] LEGEND OF THE COMPONENTS OF THE FIGURES

[0115] Jacket 1

[0116] Two-dimensional matrix I bis

[0117] Side surface 11

[0118] Base surface 1 " Head surface 1Hl

[0119] Recesses 1 a for LEDs

[0120] Fixing bars 1 b

[0121] Fins 1 c

[0122] Jar 2

[0123] Connection plate 3

[0124] Mechanical handling system 4

[0125] Spiral cable 5

[0126] Control device 6

[0127] First button 6a for choice of wavelength for UV / IR LED

[0128] Second button 6b for choice of wavelength for RGB LEDs

[0129] On / Off button 6c

[0130] First knob 6d

[0131] Second knob 6e

[0132] Third knob 6f

[0133] LCD screen 6g input for power supply 6h

[0134] Output 6i

[0135] Mill 7

[0136] Adapter 8

[0137] Sliding electrical contacts for temperature control 9

[0138] RGB LED sliding electrical contacts 10

[0139] UV or IR LED sliding electrical contacts 11

Claims

CLAIMS1. A radiating device (1 , I bis), comprising:- a body with recesses (1 a) wherein a plurality of LED light sources chosen among RGB, UV, IR are housed; wherein the radiating device (1 , I bis) is configured to be positionable, in use, at a distance within the range of 0.01 mm and 50 cm from an object to be irradiated, and is further configured to be removable from a housing designed to receive said radiating device (1 , I bis), so as to allow the irradiation of the object by the LED light sources.

2. The radiating device (1 , I bis) according to claim 1 , wherein the object to be irradiated is a jar (2) containing material to be treated.

3. The radiating device (1 , 1 bis) according to claim 2, wherein the housing designed to receive said radiant device (1 , 1 bis) is a mill (7) equipped inside it with a motor and a mechanical system comprising arms (4) which transmit the movement of the motor to said jar (2), which is removably connected to said arms (4).

4. The radiating device (1 , 1 bis) according to claim 3, conformed in a shape chosen among:• a jacket (1 ) configured to be placed near a side surface of the jar (2); and• a two-dimensional matrix (1 bis) configured to be placed inside the mill (7) near the jar (2).

5. The radiating device (1 , I bis) in the form of a jacket (1 ) according to claim 4 comprising a side surface (1 ’) that can be opened to allow the insertion of the jar (2), a base surface (1 ") and a head surface (1Hl).

6. The radiating device (1 , 1 bis) in the form of a jacket (1 ) according to the previous claim additionally comprising a light source positioned in the recesses (1 a) and chosen among:• RGB LEDs for the use of wavelengths A in the visible range (400-800 nm);• UV LEDs for the use of wavelengths A in the ultraviolet (UV) range (< 400 nm);• IR LEDs for the use of wavelengths A in the infrared range (> 800 nm).

7. The radiating device (1 , I bis) in the form of a jacket (1 ) according to anyone of claims 4 to 6 comprising on the head surface (1111) sliding electrical contacts for temperature control (9) and sliding electrical contacts for LED power supply chosen among RGB LED sliding electrical contacts (10) or UV or IR LED sliding electrical contacts (11 ).

8. The radiating device (1 , I bis) in the form of a jacket (1 ) according to anyone of claims 4 to 7 wherein said jacket (1 ) is connected to the mill (7) by means of a mechanical handling system (4) and optionally by a feeder (8).

9. The radiating device (1 , I bis) in the form of a jacket (1 ) according to anyone of claims 4 to 8 wherein said jacket (1 ) comprises a connecting plate (3) placed on the head surface (1Hl) of said jacket (1 ) and comprising sliding electrical contacts for temperature control (9), RGB LED sliding electrical contacts (10) or UV or IR LED sliding electrical contacts (1 1 ) configured to ensure electrical continuity with the surface (1Hl) of the jacket (1 ).

10. The radiating device (1 , 1 bis) in the form of a jacket (1 ) according to the previous claim wherein the connecting plate (3) is connected to the mechanical handling system (4) and connects the jacket (1 ) to a control device (6) by means of a spiralcable (5), said control device (6) being configured to regulate and control the operating parameters of the other parts to which it is connected and comprising:• a first button (6a) for choosing the wavelength A for UV / IR LED;• a second button (6b) for choosing the wavelength A for RGB LEDs;• an on / off button (6c);• a first knob (6d) for adjusting the maximum operating temperature;• a second knob (6e) for adjusting the light intensity;• a third knob (6f) for adjusting the frequency of the light pulse;• an LCD screen (6g) for parameter display;• an input (6h) for the power supply of the control device 6;• at least one output (6i) for connecting the power cable and adjusting the LED.

11. The radiating device (1 , I bis) in the form of a jacket (1 ) according to anyone of claims 4 to 10 wherein said jacket (1 ) is made of a dark opaque polymer material chosen among: Polypropylene (PP), Polylactic Acid (PLA), Nylon, Acrylonitrile Butadiene Styrene (ABS) copolymer, Polycarbonate (PC).

12. The radiating device (1 , I bis) in the form of a two-dimensional matrix (I bis) according to claim 4 wherein said two-dimensional matrix (1 bis) comprises a built- in network of RGB, UV and IR LEDs and probes for reading the temperature, and is placed in a removable manner inside the mill (7) on a lid of said mill to irradiate the jar (2).

13. The radiating device (1 , I bis) in the form of a two-dimensional matrix (I bis) according to claim 12 wherein this two-dimensional matrix (I bis) is connected to a control device (6) by means of a cable (5).

4. The radiating device (1 , I bis) in the form of a two-dimensional matrix (I bis) according to anyone of claims 12, 13 wherein said two-dimensional matrix (I bis) is made of a synthetic polymer material, which is not electrically conductive and flexible.

Images