DE1914769A1 - Drum dryer for textiles - Google Patents

Description

BW 592 15ο 3rd 1969

kö / ko

Applicant: Hans F. Arendt, engineer, Bietigheim (Württ), Bleach Island

(Drum dryer for textiles, addendum to patent 1 585 560

The main patent relates to a drum dryer like him for drying textiles and z. B. is used by laundry and in particular on a dryer with an inclined drum, which consists of several individual drums of the same diameter and the same speed, but different inclinations.

The invention improves the arrangement according to the main patent an air duct in which the drying air flows through the individual drums in countercurrent to the laundry from the unloading side According to a further feature of the invention, in the case of inclined drums, the empty run can be done with the help of the exhaust air, which is passed axially through all the drums at the loading point for the laundry.

The invention will now be explained in conjunction with the accompanying drawings individually described:

Figure 1 shows the arrangement according to the main patent schematically σ;

to Figures 2-4 show the air flow for the individual drum: ro. j and their housing.

- »Figure 1 shows that the partial drums 3» 4 "and 5 around the axis 6 ο

Rotate and are penetrated by the laundry in the direction of the arrow.

The broken line © 7 indicates the layer height of the laundry and it can be seen that the thickness in the partial drums 3 and 4 is larger than in drum 5, from which the laundry is Conveyor belt 8 reached to be removed in Pfellrichtung.

Figures 2-4 show the housings for the individual drums and the air duct. FIG. 2 shows a view of two housings, FIG. 3 a vertical section and FIG. 4 a view from above ο A special housing is provided for each individual drum so that the entire dryer can be assembled from any number, but at least two, such housings. As can be seen, the fresh air is sucked in at 21 by the fan 23 and thereby in heat exchanger 22, the z. B ₀ can be heated with steam or electrically, heated.

It flows through the drum 24 and enters the channel 26, the through baffles 27 (Figure 4) the air to the fan 28 of the drum 25 feeds. As can be seen, each drum has its own heating register and its own fan, so that a dryer is made up of several Drum racks can exist. For simplicity, in Figures 2-4 show only two such racks, although three to six racks are usually required. In the case, that the system is operated with drums rising at an incline from the loading side, emptying of the dryer after completion of the drying process is not guaranteed For this purpose, a flap 29 is provided, which is located in the exhaust air flow of the exhaust air fan 30. Such an exhaust fan is only available with the Requires dryer feed drum. In operating condition the flap 29 (Figure 2) has the strongly extended position, so that the exhaust air from the dryer in the direction of the solid arrows leaves. If, on the other hand, the dryer is to be run empty, the flap 29 is pivoted into the position shown in dashed lines, so that the Exhaust air from the entire system emerging from the feed drum now flows axially through all drums in the loading direction, thereby emptying the dryer. During operation

009825/1060

there is no pressure difference between the individual drying drums on and only for emptying there is a luffing movement in the axial direction generated.

The air duct according to the invention can of course also be used in the drum dryer, as described in the other additional application (my reference BW 591) is described for the same main patent.

Appendix: 4 claims

2 sheets of drawings with
4 figures

009825/1 060

Claims (4)

Claims /) Drum dryer for textiles with an inclined drum, which consists of several individual drums of the same diameter and the same number of but different inclinations according to patent 1 585 560, characterized in that the Drying air flows through the individual drums in countercurrent to the laundry from the unloading side. 2.) Drum dryer according to claim 1, characterized ϊ that each drum is surrounded by a housing which contains guides for the drying air, 3.) drum dryer according to claim 1 or 2, characterized in that that each housing has a heating register (22) and a fan (23 * 28) are assigned, which successively supply the air to the various drum housings via channels (26). 4.) drum dryer according to claim 1, characterized in that the exhaust air leaving the loading housing during operation to the Empty the drum with the help of a locking flap (29 »Figure 5) is guided axially through all drums in order to remove the laundry from the drying drums 00 9 8257 106 Read 11 e