SU1186910A1 - Drum drier for tea - Google Patents

Abstract

DRUM TEA DRIER containing casing with connections for supplying and discharging tea and drying agent, mounted in the casing for rotation, inclined punch JIUUI drilled drum with blades on its inner surface and drive, so that loss of the drying agent, it is supplied with the distributor of the drying agent, while the blades on the inner surface of the drum are hollow and perforated, and the distributor of the drying agent consists of a cylinder This case is mounted coaxially with the drum with the possibility of joint rotation with it and connected to the cavities of the i blades by means of pipelines and a spool fixedly mounted (L C on the pipes for supplying the drying agent.

Description

The invention relates to drum dryers and can be used in the food industry in the processing of tea leaves, as well as other industries, for drying bulk materials. The aim of the invention is to increase productivity and reduce the loss of drying agent. FIG. 1 shows the dryer, section 3i in FIG. 2 shows section A-A in FIG. one; in fig. 3 is a section bb of fig 1; in fig. 4 shows a section B-B in FIG. one; in fig. 5 is a view of Fig. 1. The Babaran dryer includes skin 1 with nozzles 2-5, respectively, for supplying and discharging tea and drying agent, perforated drum 6 with bandages 7 and flange 8 obliquely mounted with rollers 9 and 10 rotatably from drive 11, perforated blades 12, separated by longitudinal and transverse partitions 13 and 14 on the cavity for supplying the drying agent, the distributor of the drying agent containing a cylindrical housing 15 mounted for rotation with the drum 6 (for example, on its flange 8) , and the spool 16, still fixed on the nozzles 4 dl under the water drying agent. The housing 15 of the dispenser of the drying agent is connected to the cavity of the loop current 12 via pipelines 17. To drain the treated tea from the drum 6 into the nozzle 3 for opening in the drum 6 from the flange 8, an opening 18 is made 18. The spool 16 is stationary, provided with grooves forming together with the cylindrical body 15 of the cavity 19-21, to which the body 4 of the spool 16 connects nozzles 4, the number of these cavities corresponds to the number of pairs of cavities of the blades 12. The angle 5 formed by the beginning and end points (in the direction of rotation of the drum 6 of each cavity and 19–21 with respect to the horizontal, corresponds to the angle of inclination of the surface of the dried material in a rotating drum relative to the horizontal. The drum dryer works in the following way. A drying agent is supplied to the branch pipes 4 to the cavity 19–21. the nozzle 2 is fed in rotation of the drum 6, with which the blades 12 rotate, the cylindrical body 15, the pipelines 17. At the same time, depending on the properties of the dried material, its free surface deviates from the horizontal position by an angle d, after material begins peresypats and stir. The blades 12 are alternately immersed in and out of the mass of material. And since the angle from the surface of the mass of material corresponds to the angle of the spool 16, at the time the blades 12 are immersed in the mass of material, the pipelines 17 of this blade are turned by a rotating cylindrical body 15 to the cavity 19-21 and from this point on this blade 12 the drying agent enters until these pipelines are overlapped by the spool 16. This corresponds to the moment when the blade 12 leaves the mass of material. Thus, the spool 16 with its cavity — and 19–21 automatically delivers the drying agent to the blades entering into the mass of material, and closes the flow to the outlets. From the blades 12 through the perforation, the drying agent enters directly into the mass of the dried material, which achieves high phase contact of the agent with the material and its effective (agent) use, and continuous pouring of the material during rotation of the drum 6 prevents the formation of established aerodynamic channels, continuously destroys them, and provides uniform drying (filling of tea leaves). Shutting off the drying agent in the cavity of the blades 12 that are not included in the mass of the dried material or left it, allows the drying agent to be consumed economically. Next, the drying agent is sucked into the nozzle 5 over the free space inside the drum 6 and the casing 1, and the material being dried, moving to the flange 8 by rotating the inclined drum 6, spills between the blades 12 into the hole 18 and through the nozzle 3 is removed from the dryer.

311869104

The variable mode of drying (or head - agent with different characteristics, pouring) is carried out by feeding in which allows you to select the best cavities 19-21 and further, respectively, the temperature mode of drying and increase productivity in the blades 12 of the drying blades.

12

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/ 7

FIG. g

5, I L I, 20

15 ITP

Type G

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Fig.Ch17 f 8

FIG. 5/5

Claims (1)

A DRUM DRYER FOR TEA containing a casing with nozzles for supplying and discharging tea and a drying agent, rotatably mounted in the casing, an inclined perforated drum with vanes ⁰ on its inner surface and a drive, characterized in that, in order to increase productivity and reduce losses drying agent, it is equipped with a distributor of drying agent, while the blades on the inner surface of the drum are hollow and perforated, and the distributor of the drying agent consists of a cylindrical rpusa mounted coaxially with the drum, with co-rotation therewith and connected to the cavities of the blades by means of piping and valve fixedly mounted on the nozzles for supplying the drying agent. • 1186910