SU1380718A1 - Arrangement for drying tea - Google Patents

Abstract

The invention relates to the food industry, namely, tea drying devices, and can be used in primary tea factories. The aim of the invention is to improve the quality of tea and the thermal efficiency of the device. Two vertical mesh conveyors 2 and 21 are installed in the housing 1 so that between the working branches of the conveyors there is a gap for placing the product and lowering it, a vessel 26 is installed above the conveyors, expanding upwards, one wall of the housing forms a vertical sectional air duct 7 carrying out the pneumopod - Chu cha in the vessel 26. In contrast to the vertical duct 7, an additional pipe 20 is installed in the wall of the housing to supply the air withdrawn from the vessel 26. A diverting brush is placed above the conveyor 21 and 25 and the vane rotor 33 for final drying and removal of hairs ca. A rotating screw 28 is installed in the lower part of the vessel; the pitch of its turns decreases from the loading nozzle 29 to the unloading nozzle 30. 1 Cp. f-ly, 3 ill. b (L

Description

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The invention relates to the food industry, in particular to devices for drying dispersed grains and bulk materials, and can be used in tea factories of primary processing.

The aim of the invention is to improve the quality of the tea and the thermal Kin device.

In the pneumotube, the drying agent (air), having a high temperature, is additionally directed to the drying of tea, which creates conditions for a more complete use of the thermal potential of the air and leads to an increase in the thermal KIL for dry air.

An additional conveyor is provided in the device, which makes it possible to completely eliminate the attrition of tea when it is lowered into the gap between the conveyors (transttorters have the same cKopocTF) movement).

Dry tea is separated in a bottomless sogu.tse, with the lightest particles by weight — hairs — carried away by air and fed to an additional netting conveyor and then removed from the trans-1101 top of the rotor and fed - ryg) ie4Hi iae i to dry the hairs up to the norm and unload them from the device. In FIG. 1 schematically depicted statically, for drying tea, obgny view; in fig. 2 shows section A-A in FIG. one; on (tjHg. 3 - section KB in Fig. 1.

Ustromst 15 consists of housing 1, in - vertical 1-o mesh conveyor 2, conditions of drum 3 and, metatical section 5 and nozzles h, put on the front side of the conveyor. From the side of the conveyor branch of the conveyor 2, the wall of the housing of the SL-1 is filled in at the vertex of 1) H1 of 1 cargo; 1 of the guide of 7 rectangular cross section} 1i, divided into several 1, for example, six sections I - 13 by partitions 1-4. The lower part of the air; 1L of the hover 7 is

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 ranger 2 and 1 is unlocked

Section 15 for loading tea located at eHH (je, under NIANIM, the end of conveyor 2, made across the width of the conveyor, and communicates with the nozzle 1b for 1 and the air bottom, which is connected to the SCM and the third to supply a hot io4jiyxa trokalori |} 11 pa 17, steam kayorifer of 18 and lu irrii.uHToi a 19. From the side

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the working branch of the mesh conveyor 2, the wall of the housing 1 sg) holds an additional pipe 20 for the length of the air supply. Between the additional pipe 20 and the mesh conveyor 2 of the flax, the accessory grid G1 conveyor 21, consisting of drums 22 and 23 and a metal grid. Over the additional conveyor 21, a rotating brush 25 is installed along its width with the possibility of interfacing with the outer surface of the grid 24. On the sieve traps (by means of traters 2 and 21, a bottomless vessel 26 extending upwardly is attached, which is connected to g, the beacon 7, and on the other, to the additional nozzle 20 by means of the duct 27. At the bottom of the vessel there is a rotating 1 1 or 1 screw 28, the legs of which are made in steps decreasing from the loading nozzle 29 to the unloading nozzle 30. In the side walls 31 of the housing 1 is discharged (nozzles 32 dp of exhaust air from the internal cavity of the conveyor 2 are installed. In case 1 there is a gap in the gap between the air 27 and the brush 25 parallel to the device (iTen 5 pp imop, iTop contains 33 fixed on it; 1 parts 34 for mixing and leveling hairs to the top nozzle 35. The rotor is located in the groove. FJapa6aHbi 3 and 22, screw shafts 28, aunts 25 and shaft 33 are kinematically connected to the lead (house); for 1 growth.

Device for tea works as follows.

The drive () fe is shown is shown) of the fan 19, the electric air heater 17 and the steam heater 18.; | here is air (the fan 19 is fed to the heaters 18 and 17. where it is gradually heated and through pipe 16 enters all the K-13 vertical sections duct 7, d. then into vessel 26, into (air duct 27, additional nozzle 20, passes through openings of conveyors 21 and 2 and is removed from the device through nozzles 32. After reaching the required air temperature, turn on the drive (not shown) of conveyors 2 and 21 , auger 28, brushes 25 and shaft 33 of a bladed device (1) and podak g schoy tea through the pipe 29. Nrp ztom product

the horizontal screw 28 moves and wakes up; ia the edge of the conveyors 2 and 21, coz, the three branches of which move the vinci at the same speed T1) picks up the clock and gradually descends.

Nozzles 6 restrain the product when lowering and P1) relies on its rapid dumping, while increasing the filling ratio of the gap formed by the conveyors, which increases the degree of absorption of air flowing into the gap. Further, the product is poured into the hole 15 of the sections 8 of the duct 7, is captured by the air moving inside this section, and rises into the vessel 26. Here the air loses speed to a value corresponding to the speed of hair growth, is removed to the duct 27 and carries the hairs away the tea is lowered onto the rotating auger 28, through which it moves toward the nozzle 30 to a certain length and again spills down into the gap between conveyors 2 and 2

Further, tea in a similar manner gradually, etc.) X11Dnt all sections 8–13 air B) B (; yes 7, b; s111 is added and unloaded from the building through pipe 30.

The air, the passage through the openings of the outer branch of the conveyor 21, is filtered, leaving on the outer surface of the conveyor the drains which, due to the hydraulic pressure of the air, are pressed to the conveyor and rise J, are removed from the conveyor by brush 25 and are directed to the vane rotor. Here, the sprinklers are mixed with blades FOR and moved along the axis of the shaft 33, completely dried up to the technological standard due to contact heating and discharged 4) without pipe 35. Then the hairs are used for different purposes, for example, in the production of tea concentrates.

Due to the fact that the screw 28 has 50 turns with decreasing step to the exit, thickness; product layer in the gap

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between the conveyors, it does not decrease when the humidity decreases and the spikelets are removed, which creates favorable conditions for the working agent to pass through the product and its full use.

Claims (2)

1. A device for DRYING, containing a case, a heater and a fan connected to it, a vertical mesh conveyor in it with nozzles on the outer surface, an air inlet located in the lower part of the case under the mesh conveyor and having a loading opening, made) the width of the conveyor, expanded yusdiy- with up the bottomless vessel for sedimentation of the product, placed above the mesh conveyor and having in the lower part of the horizontal screw, sectioned vertical duct, forming housing wall and associated with the air supply pipe from the bottom and with the bottomless vessel from the top, an additional air supply pipe fixed in the wall, opposite (duct, and air outlet pipes connected to the internal cavity of the mesh conveyor, It is also because with the quality and quality of the device, it is equipped with an additional vertical wire conveyor installed between the main wire conveyor and the secondary air inlet pipe, at the same time, the entrance of the latter is connected with the upper part of the bottomless vessel, and a rotating brush is installed over the additional mesh conveyor along its width with the possibility of interaction with its outer surface, 2. The device according to claim 1, wherein it is equipped with a vane rotor placed in a groove fixed under the brush parallel to the latter.