SU1208437A2 - Drier for tobacco leaves - Google Patents

Description

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The invention relates to an agricultural technique and is an improvement of the known device according to ed. No. 715081,

The purpose of the invention is to reduce energy costs and by circulating the coolant.

Figure 1 shows the dryer, a general view; figure 2 - section aa in Fig, 1; figure 3 - node G in Fig, 2.

The dryer contains a rotor 1, non-loosening radial heat insulating partitions 2, forming sector chambers 3, a hollow heat-insulated casing 4 with a loading and unloading window 5 on the side surface and a heat transfer system. In the center of the rotor 1 there is a vertical channel 6 with an opening 7 for draining the spent heat carrier, with the cavity 8 sections of the casing. 5 communicated with the coolant supply system. The inner walls of the casing 4 have holes 9 and 10 for the passage of coolant into chamber 3. Furthermore, the vertical channel 6 for draining the spent coolant is provided with air ducts 11 rigidly mounted on ceilings 12 sector chambers 3 and connected to nozzles 13. The docking device includes a movable frame 14, flexible canvas sleeve 15, t gu 16, direction of sleeve 17, plug IB, drive shaft 19 with actuator 20, limit switch 21, support brackets 22 and seal 23.

Figure 1 shows a variant of a sawing unit for combined drying, in which the assignment of the technological sections is as follows: D is the loading area of the dried and discharged dried tobacco mass; P - a site of primary languor; W - secondary languor (dotamuli); IV - VII - areas of natural drying, VI4 - area of drying; IX - wetting area.

The tobacco leaf dryer operates as follows.

When combined drying, freshly harvested tobacco leaves attached to the base (for example, twine) are loaded into the dryer at site I loading - unloading and by turning the rotor 1 at a certain angle of 40 in a clockwise direction ne

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they are transported to the second primary languor zone, where the phase of languor goes through for a certain period of time. During this period of time, a second batch of tobacco is loaded into the free section due to the marked rotation of the rotor 1 in the first section, and the rotor 1 is rotated again. At the same time, the tobacco that has passed the first phase of languor appears in the third section of secondary languid. By repeating the indicated operation at equal intervals of time, the tobacco weight of the initial load passes successively through all the technological drying areas and is in front of the loading / unloading area, from which it is unloaded. Subsequently, as the next batch of finished tobacco raw material is unloaded, a new batch of freshly harvested tobacco is loaded.

In artificial drying, the technological process is carried out in a similar way with the difference that in this case the movable outer portions of the casing 4 move to the natural drying portions P, V and VI, VII (in FIG. 1, the position of the movable portions of the coaster is shown by dotted lines ), thus re-forming the section .IV into the primary fixing section, section V into the secondary fixing section, section VI into the primary drying section of leaf leaves and section VII into the secondary drying section of leaf sheets. However, the assignment of the remaining sections remains unchanged.

When the rotor 1 rotates and the air ducts 11 on the ceilings of the chambers 3 end up opposite the nozzles 13, an actuator 20 is turned on, which, by rotating the drive shaft 19, moves the movable frame 14 by means of a fork 18 to ensure that the latter fits snugly to the end surface of the duct 11. Thus the air ducts 11 and the nozzles 13 through the canvas sleeve 15 are connected and the spent coolant from the vertical channel 6 enters the nozzles 13 of the heat supply sources, thereby providing circulation of coolant in its supply system.

In addition, during the movement of the movable frame 14 towards the duct 11, the moving contacts button of the limit switch 21 is released from the compressive force and the electric circuit of the rotor drive motors 1 is broken. As a result, the possibility of rotation of the rotor 1, which is in the docked position of the ducts 11 and branch pipes, is eliminated 13 could lead to breakdowns.

1208437

The launching of the elements of the docking device in order to disconnect the ducts 11 and the nozzles 13 while rotating the rotor 1 is carried out by reversing 5 of the actuator 20. When

This frame 14, assuming the extreme left position, compresses the moving contacts button of the limit switch 21, as a result of which the electrical integrity of the rotor 1 drive motors is restored and it can be rotated.

Rig. 2

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Editor M. Dylyn

Compiled by N.Isachenko

Tehred O. Vashchishin Proofreader A.Zimokosov

Order 242/52 Circulation 635 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Filial PPP Patent, g, Uzhgorod, st. Project, 4

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Claims (1)

DRYER FOR TOBACCO LEAVES by ed. No. 715081, characterized in that, in order to reduce energy costs by recirculating the coolant, additional heat transfer pipes with tarpaulin sleeves are located on the casing, and the sector chambers are equipped with air ducts connected to the vertical channel and connected with the possibility of a connector with tarpaulin sleeves.