JP2714089B2 - Heating or drying or heating and drying equipment - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to an apparatus for heating or drying or heating and drying wet and crushed materials, for example organic materials,
More particularly, it comprises a fixed housing with a rotatable hollow rotor having a heating medium and an inlet passage and a discharge passage for condensates which may be generated from the heating medium, wherein the hollow rollers have a number of hollow annular rings. A first plate forming a first side of the at least one annular chamber; a second plate forming a second side of the at least one annular chamber; A supply pipe communicating with the inlet passage and one side of the annular chamber; and a return pipe communicating with the discharge passage and the other side of the annular chamber, wherein the first and second plates are directly attached to each other. And an apparatus for heating or drying the wet and comminuted material. BACKGROUND OF THE INVENTION Apparatus for processing wet materials, such as fish meal, ground meat, ground materials from breweries, and similar wet sticky materials of animal or vegetable origin, are usually It is designed for high performance, i.e. drying several tons of material at a time. Such a device is known from Danish Patent No. 138,406, in which an annular passage with a hollow space for the heating medium of each drying element is in the form of a spiral for the through-flow of steam. . These passages are helical in shape, since this allows the condensate to be driven out of this passage more easily, so that a good and continuous steam flow is obtained. However, this type of passage has various disadvantages from a production point of view, because in practice this helical shape is made by a structure consisting of a circular section of a suitably curved strip, and This is because the member of the plate material is welded to the disk-shaped rotating element. This makes the welding process difficult. In addition, the ends of these strips must also be welded to one another and, of course, all must be made of a pressure-tight and usually non-corrosive material. The object of the present invention is to provide a device of this kind whose construction is very easy without other disadvantages. [Means for Solving the Problems] The object of the present invention is to provide several annular chambers in parallel at the same time, distributing the heat more evenly to the drying part or distributing more heat energy than the known structure. This is achieved by a heating or drying device adapted to be supplied. That is, according to the present invention, there is provided a stationary housing with a rotatable hollow rotor having an inlet passage and a discharge passage for a heating medium and possible condensate thereof, said rotor having a number of hollow annular rings. A first plate forming a first side of the at least one annular chamber; a second plate forming a second side of the at least one annular chamber; A supply pipe communicating with the inlet passage and one side of the annular chamber; and a return pipe communicating with the discharge passage and the other side of the annular chamber, wherein the first and second plates are directly attached to each other. ing,
In a device for heating or drying or heating and drying a wet and crushed material, a point or line where the first and second plates are circular and the first and second plates are located only on one plane. And the points or lines of attachment form a cavity defined by at least one annular chamber, the cavities of the supply pipe and the return pipe being arranged in a loop, these pipes and So that none of the cavities overlap or cross each other,
It is also achieved by a device for heating or drying or for heating and drying moist pulverized material, characterized in that said plates are arranged parallel and close to each other in regions where no cavities are formed. . With the device according to the invention, in fact, there is no problem with the condensate obtained when the heating is carried out by means of steam. However, heating can also be performed, for example, with hot oil or the like. The supply of large amounts of thermal energy is of great importance, for example, when the ground material is boiled and sterilized as quickly as possible. In the device of the present invention, when the first and second plates are deformed to form an annular chamber, the structure is simplified, because welding of the annular chamber portion is avoided. . The drying section is produced by appropriately deforming the plate to obtain the desired annular chamber. When the apparatus of the present invention is configured such that a number of annular chambers do not have the same cross-sectional area, this results in an annular chamber with a larger cross-section, resulting in a greater supply of thermal energy, This can increase the capacity of the device. This annular configuration also offers several advantages from a manufacturing technology standpoint. Because the annular chambers in each drying section are not actually the same length, these passages will not have the same resistance to flow. To obtain a uniform temperature distribution across each dry area,
These annular chambers can therefore be designed such that the greater their distance from the hollow rotor, the greater their cross-sectional area and the annular chambers are arranged in a circle on the drying part. When the device of the invention is configured such that the circular annular chambers are concentric with each other, the entire welding operation involved in welding the annular chamber on the dry part is automated and performed by a simple welding robot. This results in a very uniform and consistent weld seam requiring minimal post-treatment. Also, by configuring the circular annular chamber to be concentric with the rotor and the outer edge of the drying section to be polygonal, a very large number of annular chambers can be obtained on each drying section, and thus a large amount of Supply of heat energy becomes possible. Furthermore, by configuring the annular chamber to have the same polygonal shape as the outer edge of the drying section and the outer edge of the drying section to be square, for example, depending on what kind of material is handled, heat exchange is mixed. This can be done in the form of a heat distribution. The device according to the invention can further be arranged such that the supply passage for the heating medium is arranged on one side of the drying section and the return passage for the heating medium is arranged on the other side of the drying section. The heating medium is thereby supplied to one side of the drying section and the return stream is supplied to the other side, so that the annular chamber can be made almost completely annular. This results in a very uniform heat distribution and avoids that the supply and return passages lie in mutually opposite directions during the welding operation. DETAILED DESCRIPTION OF THE INVENTION The device 1 shown schematically in FIG. 1 is often provided with a filling opening 7 for the material to be heated and fed and a discharge opening 8 for the finished dry material. Housing 2
Is provided. The material to be introduced is dried by a heated rotating rotor (rotor) 3 having a circular flat drying section 9 spaced apart. As new wet material is continuously introduced into the device, the material to be heated or boiled moves toward discharge opening 8. The stationary housing 2 has a discharge opening (not shown) for water vapor generated by the wet material during drying. The rotor 3 has an inlet passage 4 for a heating medium leading to a central pipe 11, for example steam, and a discharge passage 5 for a second discharge pipe 6 for condensate in addition to steam. This effect is in effect, for example,
It is the same as the device known from US Pat. No. 8,406. In FIGS. 2 and 3 there is shown two enlarged, concentric annular chambers 10 shown in an enlarged manner in the drying section 9.
Numeral 10 is concentric with the rotor 3 made of stainless steel in a bowed circular strip which is welded to a dry section 9 made of stainless steel on a circular flat disk. These annular chambers 10 are arranged in parallel via a supply passage 12, and the supply passage 12 is connected to a central pipe 11 via a supply pipe 14. As the heating medium passes around the annular chamber 10, it passes through the holes 16 of the drying section 9 to the return passage 13 on the other side of the drying section and to the rotor 3 via the return pipe 15. . These annular chambers 10 can be configured with the same through-flow gap or with different gaps so that the through-flow resistance can be adjusted as desired. This throughflow resistance can also be adjusted by insertion means such as throttling means and the like. This ensures that the flow of the heating medium through the annular chamber 10 is as desired, for example, a uniform throughflow in the entire annular chamber. In the example of FIGS. 2 and 3, the annular chamber 10 is
One side is shown on one side. It will be clear that these annular chambers can also be arranged on either side of the drying section 9, facing each other or in a staggered manner with respect to each other. The annular chambers can be spaced from one another or placed close to one another, depending on how a uniform temperature distribution is required and how a large heat supply is required. FIGS. 4 and 5 show an example of a second embodiment of the drying section 9 ', in which two circular plates 17, 18 are suitably deformed and joined to one another, for example by welding. In the example shown, both circular plates are deformed, but in practice it is sufficient that only one of these circular plates is deformed and the other is flat. In the example shown, the annular chamber 10 'is arranged such that it directly abuts over the entire drying section 9'. FIGS. 6 and 7 show a special embodiment of the drying section shown in FIGS. 4 and 5, in which a circular plate 17 and a
A special passage is provided in 18, whereby the drying section 9 "is provided with a uniform heat distribution and the innermost annular chamber has a smaller gap than the outermost annular chamber, e.g. 4 through 7, the feed-through means and the return means,
For example, pipelines for heating media and possible condensates are outlined. It will be apparent to those skilled in the art that the supply and discharge passages for the annular chambers 10 'and 10 "can be implemented in many other ways besides those schematically shown here. Although all of the annular chambers 10, 10 ', 10 "shown are shown in a circular cross-sectional configuration, for those familiar with the art, a myriad of other cross-sectional configurations may be used and the same as described above. It will be apparent that they are made with effect and do not depart from the basic spirit of the invention. In each instance of the drawing, all the dried parts 9, 9 ', 9 "are shown with a circular perimeter, and all the annular chambers 10, 10', 1
The 0 "is also shown as a circle. It will be apparent to those skilled in the art that these portions may have still other geometric shapes. It can be a polygon with a perimeter and have one or more circular chambers that follow the geometry of this edge.The circular dry part has another geometric shape, for example a polygonal ring BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic longitudinal sectional view of the apparatus of the present invention, and FIG. 2 is an enlarged plan view of the drying element of the first embodiment of the present invention. FIG. 3 is a radial cross-sectional view of the drying element taken along the line III-III of FIG. 2, FIG. 4 is a plan view of the drying element according to the second embodiment of the present invention, and FIG. Fig. 6 is a partial sectional view in the radial direction of the drying element as viewed in the direction V-V. Fig. 7 is a plan view of a drying element according to a third embodiment, Fig. 7 is a radial partial cross-sectional view of the drying element as viewed in a direction VII-VII of Fig. 6. 1 ... heating drying apparatus 2 ... fixed housing 3 ... Rotor 4 Inlet passage 5 Discharge passage 9 Drying parts 10, 10 ', 10 "Annular chamber 12 Heating medium supply passage 13 Heating medium return passage 14 Supply pipe 15 Return pipe 17 First plate 18… Second plate

Claims (1)

(57) [Claims] An apparatus for heating or drying or heating and drying a wet comminuted material, for example an organic material, comprising an inlet passageway (4) and a discharge passageway (5) for a heating medium and possible condensates thereof. A fixed housing (2) with a rotatable hollow rotor (3) having a plurality of hollow annular drying sections (9), each drying section (9) having at least one drying section (9). A first plate (17) forming a first side of the annular chamber (10); a second plate (18) forming a second side of the at least one annular chamber (10); 4) a supply pipe (14) communicating with one side of the annular chamber (10), and a return pipe (15) communicating with the discharge passage (5) and the other side of the annular chamber (10). Comprising a first and second plate (17,18) mounted directly on each other An apparatus for heating or drying a crushed material, wherein the first and second plates (17, 18) are circular,
And a second plate (17, 18) is attached to each other at points or lines located only in one plane, and the point or line of attachment is defined by at least one annular chamber (10). The supply pipe (14), the return pipe (15) and the cavity are arranged in a loop such that none of these pipes and cavities overlap or intersect with each other, and the plate (17, 18) heating or drying or heating and drying the wet pulverized material, characterized in that the wet and pulverized material is arranged parallel and close to each other in an area where no cavities are formed. 2. The first and second plates (17) and (18) are in the annular chamber (1).
2. The device according to claim 1, characterized in that it has been modified to form 0,10 ', 10 "). 3. The annular chambers (10") do not have the same cross-sectional area. 3. The device according to claim 1 or claim 2. 4. 4. The device according to claim 3, wherein the cross-sectional area of the annular chamber (10 ") increases with increasing distance from the hollow rotor (3). 5. The device according to claim 1, wherein the devices are arranged in a circle. 6. 6. 6. The device according to claim 5, wherein the circular annular chambers are concentric with each other. 7. 7. The device according to claim 5, wherein the circular annular chamber is concentric with the rotor. 8. Device according to claim 1 or 2, characterized in that the outer edge of the drying section (9) has a polygonal shape. 9. 9. Device according to claim 8, wherein the annular chamber (10, 10 ', 10 ") has the same polygonal shape as the outer edge of the drying section (9). Device according to claim 8, characterized in that the outer edge of the heating medium is square, 11. The supply passage (12) for the heating medium is arranged on one side of the drying section (9) and for the heating medium. Device according to claim 1 or 2, characterized in that the return passage (13) is arranged on the other side of the drying section (9).