SU35035A1 - Humidifier for tobacco dryers - Google Patents

Description

Of great importance is the concentration of all production processes for both the cultivation and the raw material processing of tobacco at the place of its production.

As is well known, the main process of raw processing is fermentation, the implementation of which until now was impossible, followed by the absence of wetting agents in firing dryers, necessary for the purposes of fermentation.

For this purpose in the dryer Ing. The flow, as well as in other dryers, with the appropriate re-equipment of their leaks, is installed on the firebox the proposed humidifying device, heated by direct fire and then used for heating the dryer. For this, the top of the furnace is disassembled and installed (instead of it, the proposed device is designed so that its first part serves as the top of the furnace was heated intensively, the device is an iron orb with two wide discharge chambers that enter the dryer. The box is filled with thin water layer, due to the very strong fitting, quickly evaporates and fills the duct with steam. The heated and humid air becomes light and comes out of the duct through one of the discharge pipes, and instead of it comes from the dryer olee cold and therefore heavier air. As a result, air is quickly circulated from the dryer through the sprinkler and back into the dryer, which causes a rapid increase in air humidity in the dryer. In order for the air flow through the duct to always be in one direction, one tube is connected to the duct in its upper part, and the other on the side, at the level of the surface poured to evaporate water. With this arrangement of pipes, the air circulation through the device is always kept constant due to the fact that the pressure in the box is equal to atmospheric. In order to evenly distribute the air supplied by the proposed humidifier, two iron pipes (air ducts) are connected to the dryer under the tobacco, one connected to the heated, humidified air pipe, and the other to the suction pipe. These air ducts have along the entire length of a series of holes with valves, which regulate the uniformity of the supply of air humidified in the device to the dryer. The size of the humidifier depends on the cubic capacity of the drying chamber, as well as

From other points, such as: temperature rise, humidity, the amount of water absorbed by tobacco, as well as the degree of insulation of the dryer. If we take the most unfavorable, in terms of calculations, conditions, namely: fermentation of dry tobacco in cords at 50 ° C and air humidity, then for the Flowkin dryer, with a capacity of 25 cars (500 kg of dry tobacco), the amount of steam needed for moistening is 40kg per hour (maximum). This amount of steam can give the heating surface of the box 1.6 m. In order to make the box compact and not occupy any other place on the firebox, the bottom of the box is made wavy with a wave height of 5 cm VI wide 10 cm. For fermentation of tobacco in spliced condition This amount of steam (40 kg) produced by the 1.6 m heating surface is quite sufficient even with excess, since in this case only the surface layers of the bale come to be moistened, the internal bale mass is usually quite adequate when it enters the fermentation. Excess steam will compensate for losses (quite significant) as a result of the insulation defects of the dryer. Fermentation in bales significantly increases the throughput of the dryer by approximately 40 times. For dryers with a capacity of 50 cars, the heating surface of the humidification box, i.e. 1, 2 m, must be increased accordingly, which can be achieved by installing two humidifying devices 1, bdg2 on each of the furnaces of the Flowkin dryers with two furnaces or installing one large aggregate in 3.2.

The heating of the device, as well as the firing dryer in general, can be produced by any type of fuel most accessible under the conditions of a given region.

Since the possibility of obtaining solar-type tobacco in fiery dryers (Sochi, Dbkhazi, Crimea) requires artificial maintenance of air humidity at a considerable height (70-75 / o), the proposed humidification device will also find the widest application here.

According to the observations of the inventors, in the mass experience of fermentation in the dryer,

equipped with the proposed humidifying device, the expenditures are expressed: 1 weight unit of tobacco otfermentivnogo in the dryer, is 0.1 weight unit of firewood.

In FIG. 1 depicts a moisturizing device, longitudinal section; FIG. 2 is a section along the line of FIG. one; FIG. 3 is a section along the line of the LED in FIG. 1, and FIG. 4-section along the line Ef to FIG. one.

The proposed humidifier for tobacco dryers consists of and; installed on the firebox 4 of an iron box / into which vodg is poured through the tube 77.

From the metal box / transactance two outlet (pipe) 2 and 5, one by one and; Of which 5 suction takes place from the air drier, and through another 2-ejection from the box 7 humidified heated air. In order to increase the heating surface in the box, the bottom of the region is wavy. Since the dryer must be used for drying and for fermentation, it is during the drying period when the supply of dry air is required; In the dryer, it is necessary to turn off the heating of the humidification box, for which the box is not installed directly above the fire, but above the roof of the firebox. To supply heated gases, with the need for moistening, channels 7 are arranged on top of the fire chamber.

The fire on these channels, with open; The flap 75 and 75 rush out of the furnace 4 and makes one revolution along the duct, heating at this time its day (Fig. 3), after which the used NOT heated gases partially lost to heat are retracted along the course of passages under the duct, from where the hogs are already coming along the flame tube located in the dryer itself, and in; rotate into the flue 9 for the return gas from where it enters the chimney 7i located in the exhaust channel 7 If necessary, turn off the damper, the damper is closed / in the channel 7 under the duct, and the gases come out of the furnace through the channel 7 and enter into the dryer 8 in the dryer.

In order to prevent quick damage to the arch of the firebox from strong Hi heating and to submit to the burning TOi