JPS6054029B2 - Perfume drying equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for drying tobacco leaves, shredded tobacco, and other materials to be processed.

Conventionally, as a drying device for these materials to be processed, a heating tube is installed on the inner peripheral surface of a rotating drum, or
2. Description of the Related Art A tobacco drying device is known, as disclosed in Japanese Patent No. 199, in which a heating means formed in a corrugated shape is disposed so as to protrude from the inner wall surface of a rotating drum and in the radial direction of the rotating drum.

However, in the conventional rotary tobacco drying device, a large number of support metal fittings are required to form the heating means on the inner wall surface of the drum, which increases the weight of the drum itself and causes problems at the joints between the heating means and the support metal fittings. A gap is created between the inner wall of the drum and the heating means, causing shredded tobacco to enter between the inner wall of the drum and the heating means, and the shredded tobacco with degraded quality getting mixed into the dried product, which not only hinders the uniformity of product quality but also impedes the transmission of heat from the heating means. It has the disadvantage of causing heat loss and reducing the drying efficiency of the product.

In addition, in order to discharge the moisture evaporated from the inside of the drying drum during the drying of shredded tobacco, it is necessary to blow hot air into the drum as an auxiliary heating means, and this hot air obstructs the harmful atmosphere. It has been considered difficult to carry out both the damage to the dryer and the drying in the same drying drum. Therefore, the tobacco shredding device and the drying device were manufactured separately, and it was necessary to separately process the shredded tobacco using these devices, resulting in disadvantages such as increased equipment costs and processing costs. . In view of the shortcomings of the conventional damaging device and drying device, the present invention improves the structures of the damaging device and drying device, thereby reducing staining of the inner wall of the rotating drum and making the entire device lightweight. Furthermore, the object of the present invention is to provide an apparatus for damaging and drying a material to be treated, which simplifies the damaging and drying process by integrating the damaging and drying steps into the same drum.

The present invention will be explained below based on the attached drawings showing examples.

Fig. 1 is a partially cutaway front view of the aggravating drying device of the present invention;
The figure shows a sectional view of E in FIG. 1, FIG. 3 shows a sectional view of Rollo in FIG. 1, and FIG. 4 shows a partial sectional view of the heating means of the drying section.

First, in FIG. 1, reference numeral 1 denotes a rotating drum constituting the apparatus of the present invention, which has rails 2 installed around its both ends, a bearing 4 placed on a base 3, and a roller 5 supported by the bearing 4.
It is placed on the base 3 with a slight inclination from the front end toward the rear end, and is rotated at variable speed by a drive source (not shown). An inlet chute 6 for the material to be treated is provided at the front end of the rotating drum 1 so as to pass through the end plate 1c.
Further, the rear end is connected to an exhaust duct 8 having an outlet chute 7 for processing material at the lower end.

The inside of the rotating drum 1 is composed of an aromatizing section A and a drying section B.
A steam pipe 9 is provided around the outer peripheral surface of the front half drum 1a constituting the perfuming section A, and a large number of rod-shaped members 10 are provided on the inner peripheral surface of the drum 1a to protrude in the radial direction of the drum 1a.

The rod-like members 10 are preferably arranged at equal intervals in the circumferential direction and the length direction of the drum 1a, but they may be arranged in a staggered pattern or any other suitable shape, and they scrape the material to be processed into the rotating drum. It has the effect of raising and stirring. In addition, in the cavity of the front half drum 1a, an air pipe 11 extends parallel to the drum axis, passing through the end plate 1c, with its opening 11a facing the drying section B, at a position biased toward the inner wall side from the center of the drum. established,
One end is a blower 12 installed outside the rotating drum 1.
and an outside air introduction pipe 14 with an air heater 13 interposed therebetween.

A fragrance tube 1 in which a plurality of spray nozzles 15 are arranged in parallel at approximately equal intervals in an air supply tube 11 extending inside the front drum 1a.
6 is attached.

The attachment position of the aromatic tube 16 to the air pipe 11 is preferably below the air pipe 11 as shown in FIG.
Further, the installation angle of the spray nozzle 15 is adjusted and installed so that the scented liquid is uniformly sprayed onto the material being scraped up and stirred on the inner wall surface of the drum. One end of the perfume tube 16 is connected to a perfume liquid container (not shown) via a pipe 17 and a pump 18. In addition, the upper part of the air pipe 11 and the front half drum 1
A rotary brush 19, in which a number of brushes 19b are attached around a rotating shaft 19a rotated by a drive source (not shown), is installed as necessary between the brush 19 and the inner wall surface of the brush 19a.

The brush 19b of the rotating brush 19 rotates in contact with the upper surface of the air pipe 11 and the inner wall surface of the front half drum 1a, and these surfaces are constantly cleaned. Next, heating means 20 and 21 are provided on the outer periphery of the rear drum 1b constituting the drying section B and in the radial direction inside the cavity, respectively.

As is clear from the partial sectional view of FIG. 4, the heating means 20 formed on the outer circumferential surface of the drum is formed by fixing a corrugated plate 22 to the outer circumferential surface of the drum 1b by means such as welding. The passage 23 formed by the drum 22 is configured as a steam pipe, and the heating means 21 protruding in the radial direction inside the cavity of the rear drum 1b is a flat plate 24 fixedly attached to the inner wall of the drum 1b. A passage 25 formed by fixing a corrugated plate 22 to the surface in the same manner as described above is configured as a steam pipe. In addition, steam piping 23, which constitutes the heating means 20, 21,
One end of 25 is connected to a heating pipe header 27 via a solenoid valve 26, and the other end is connected to a condensed water header 28.

The steam pipes 20 and 21 provided between the heating pipe header 27 and the condensed water header 28 can be divided into a plurality of sets (three sets in the figure) in the length direction of the rear drum 1b.Heating The pipe header 27 is connected to a rotary joint 31 provided on the outside of the exhaust duct 8 via a connecting pipe 29, and further communicated with a steam pipe 33 of a steam generator 32.

Further, the condensed water header 28 is connected to the rotary joint 3 via the connecting pipe 30.
1 and further passes through the steam generator 32
will be communicated to. Note that 35 is a steam pressure regulating valve, and 36 is a power source for energizing the solenoid valve 26. Next, the operation of the aroma drying apparatus of the present invention having the above configuration will be explained.

First, the material to be processed is introduced into the front half drum 1a from the inlet chute 6 attached to the front end of the rotating drum 1.
The drying section B is scraped up and stirred in the direction of rotation of the drum by a rod member 10 protruding from the inner wall of the first half drum 1a.
During this transfer, the perfume liquid is sprayed from the spray nozzle 15 of the perfume tube 16.

In this case, the aromatic tube 16 can be easily attached to the lower surface of the air pipe 11, and a plurality of spray nozzles 15 can be provided along the extended aromatic tube, so that the material to be treated cannot be flavored. It becomes possible to perform the process uniformly. In addition, the inner wall surface of the front half drum 1a is heated to around 50° C. by the heating means 9 disposed around the outer periphery of the drum 1a, and the material to be treated is maintained in a state in which it is difficult to adhere to the inner wall surface of the drum 1a. ,
The adhered material to be treated is constantly scraped off by the rotating brush 19. At the same time, the material to be treated adhering to the upper surface of the air pipe 11 is also scraped off by the rotating brush 19, thereby preventing the scented material to be treated from being deposited on the front half drum 1a. The scented material to be processed is then gradually transferred into the rear drum 1b constituting the drying section, and scraped up in the drum rotation direction by a protruding member constituting the heating means 21 protruding from the inner wall of the rear drum 1b. While being stirred and transferred to the rear end, it is indirectly heated by heating means 20 and 21 into which superheated steam of about 110-150°C, usually about 130°C, is introduced.

The scented material to be treated is heated to evaporate the moisture contained therein, dried to a predetermined moisture content, and discharged from the outlet chute 7 at the bottom of the exhaust duct 8. At this time, an air blower 12, an air heater 1
3, warm air heated to around 50°C is sent into the rear drum 1b, and this air serves as an auxiliary means for drying the aromatic material in the drying section B, and also removes the aromatic material from the aromatic material. It has the effect of forcibly exhausting the evaporated water to the exhaust duct 8. The superheated steam supplied from the steam generator 32 is reduced to a required pressure by the pressure regulating valve 35 and then supplied to the heating pipe header 27 via the rotary joint 31 and the connecting pipe 29. It is distributed and supplied to the heating means 20 and 21 of. In this case, the heating tube header 27 and the heating means 20
, 21 allows the heat transfer area of the heating means to be varied. The heating means 20 and 21 exchange heat with the material to be treated via the wall surface of the rear drum 1b and the flat plate 24 protruding in the axial direction of the drum 1b, and the condensed water is condensed water. The water is collected in the header 28, passes through the connecting pipe 30, the rotary joint 31, and is returned to the steam generator 32 via the return pipe 34. As explained above, according to the aromatic drying apparatus of the present invention, both processes of aromaticizing and drying the material to be treated can be carried out in the same rotating drum, so that the processing process can be simplified. It is possible to significantly reduce equipment costs and processing costs, and by extending the air pipe into the front drum of the perfumer section and attaching the perfumer pipe to this air pipe, multiple spray nozzles can be connected to the perfumer pipe. Because they are arranged side by side, it is possible to uniformly flavor the material to be treated, and because the heating means is arranged around the outer periphery of the drum, the inner wall of the drum and the outer surface of the air pipe can be constantly cleaned by the rotating brush. It is also possible to avoid the scented material to be deposited and stagnate in the drum, and to obtain a processed material without uneven flavoring.

In addition, the heating means of the drying section is provided on the outer periphery of the drum and the protruding member in the direction of the center axis of the drum, and the drum wall itself is formed as a heat transfer surface. Scraping and agitation inside the drum can be performed simultaneously, the aromatic material will not be deposited inside the drum, and the drum itself can be manufactured to have a lightweight structure and be washable with water. Deterioration in heat transfer efficiency due to contamination is also avoided.

Furthermore, since the steam generated from the flavoring material can be exhausted while drying it using warm air from the air pipe, drying to a predetermined moisture level can be carried out smoothly without impairing the quality of the flavored material. The various advantages that can be implemented and implemented will be explained.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway front view of the fragrance drying device of the present invention;
The figure shows a sectional view of E in FIG. 1, FIG. 3 shows a sectional view of Rollo in FIG. 1, and FIG. 4 shows a partial sectional view of the heating means in the drying section. 1... Rotating drum, 1a... First half drum, 1b... Second half drum, 1c...
End plate, 3... Base, 6... Inlet chute, 7... Outlet chute, 8... Exhaust duct, 9... Hot water or steam piping, 170...
... Rod-shaped member, 11 ... Air pipe, 12 ...
...Blower, 13...Air heater, 15.
... Spray nozzle, 16 ... Flavoring tube, 19.
... Rotating brush, 20, 21 ... Heating means, 22 ... Corrugated plate, 26 ... Solenoid valve,
31... Rotating joint.

Claims (1)

[Claims] 1. A rotating drum having an inlet for the material to be processed at the front end and an outlet and an exhaust duct at the rear end. A heating means is arranged on the outer periphery of the front half drum, and a large number of heating means are arranged radially on the inner wall of the front half drum. A rod-like member is protruded from the front end of the front half drum, and an air supply pipe extending from the front end of the front drum is parallel to the drum axis and has an opening toward the rear drum cavity in the front half drum cavity. A perfumer tube with a plurality of spray nozzles arranged in parallel is attached to the air pipe, and a rotating brush is attached between the upper part of the air pipe and the inner wall of the front half drum. 1. A flavoring and drying device, characterized in that a drying section is provided in succession, the drying section having a heating means protruding radially from the outer periphery of the rear drum and inside the cavity of the rear drum.