SU28160A1 - Multiple Air Saturation Dryer - Google Patents

Description

In the author's certificate No. 25096, a multiple air saturation dryer is described, consisting of a drying chamber with moving endless belts carrying the product to be dried, divided by a partition into two compartments, through which air preheated by means of a radiator is forced to blow.

The present invention is a modification of the dryer described in this copyright certificate, which consists in the fact that the flue gases, which heat the drying air with the aid of a heater, are directed downward instead of ascending in the main patent.

In addition, the movement of the air heated in the air heater is directed by the ascending stream instead of the descending one in the original structure; accordingly, the fan for forced circulation of the heated air is located above the heater, and below it. Finally, the drying chamber in this modification is divided into three compartments, instead of two in the original.

In FIG. 1 shows a side view of the proposed dryer with a partial cut along the HCIK in FIG. 2; FIG. 2 is a top view of the dryer with a partial section along ABE in FIG. one; FIG. 3 is a front view with partial pc1 cut across ABCD in FIG. one.

The proposed dryer for multiple saturation of air consists of a drying chamber 4 (Fig. 1 and 2) with horizontally arranged double strips, and the upper and lower tapes are separated by partitions: the first is for heating the material before drying, and the second is for cooling the material, then heater 2 and fan 7; and finally, firebox 7, feeding off exhaust gases into heater 2.

To release the saturated air T of the dryer, a channel 5 (Fig. 1 and 2) is used, covering a chimney 5a at a certain height (Fig. 3). On the path of movement of this air, a channel 56 (Fig. 2) is made to allow warm air to enter the channel 5s, through which fresh air is admitted.

The dryer is arranged collapsible (bolted) for the possibility of transferring it from place to place.

The product supposed to be dried, placed on the upper part of the moving tape of chamber 4b, is poured onto the lower part of its tape, from where it is transferred to the upper part of the second tape, etc., successively to the lowest part, and on the upper tape separated by a partition Like the bottom, the product is heated before drying, and cooled at the bottom after drying.

The movement of air in the dryer is as follows. Fresh air is sucked in by the fan 7 through the lower belt chamber 4a with the addition of air from the channel 5, through which the warm exhaust air flows and is forced through the air heater to the dryer. If the valve a is closed, the air heats the chamber 4b, if the valve of the latter is open, it rushes into it, where, depending on the xapai6fepa, drying various kinds of products, or dabs them with hot air, or carries away the sulfur that is burned in front of the chamber. . Air enters chamber 46 through openings of different sections and therefore acquires different speeds in it. As a result, a vortex movement of air is created in the dryer itself, which contributes to a more vigorous effect on the dried products.

Then, the air is exhausted by the exhaust pipe at any height set for the drying process. In order to suck up air at any height, the rear wall of the dryer is collapsible (wooden). Air from the upper chamber 4b enters chamber 36, from where it enters channel 5, the purpose of which has been described above.

By using the fan and the valves in the exhaust pipe, a lower pressure can be created in the dryer (the fan sucks more air than the amount that enters through the fresh air inlet pipe) or increased pressure (the air blows more air than which can leave the dryer when the opening of the exhaust pipe valve is installed for this purpose).

Endless ribbons can be let in either direction, forcing the product to be dried on them to move or meet air entering the chambers 46 and 4e, or in the direction of its movement.

The subject matter of the invention.

Modification of the dryer specified in the author's certificate No. 25096, characterized in that the fan 7 for blowing air through the heater 2 is located below the latter, and the drying chamber is divided by horizontal partitions into three compartments, of which the upper compartment is equipped with a rotary damper in parallel the air flow in the middle chamber, and the lower compartment, which passes the air in the opposite direction, is connected by a pipeline BC to the fan 7, whereas for the removal of flue gases from the pipe a heater installed collecting channel leading to an underground burs in the downward direction.