SU1359608A1 - Drier for loose materials - Google Patents

Abstract

The invention can be used in the chemical industry. The purpose of the invention is to improve the quality of drying and intensification of the process. For this, the drum is equipped with a vibration drive and has a second helix. The spiral is filled with a flop and installed an equidistant perforated spiral. The perforation of the helix has a size that increases in the direction from the center to the periphery. Making the drum 5 in the form of a perforated spiral with the possibility of vibration eliminates the movement of small particles in the total mass, thereby increasing heat exchange with air and uniform drying. 3 il. U A-A C 15 xxxxxxxll gchll gl llhhhuhu Sush mmepucui -tf

Description

 The invention relates to a technique for drying bulk materials in a rotatable drum and can be used in the chemical industry.

The purpose of the invention is to increase the quality of drying and intensify the process.

Fig, 1 shows the dryer, a general view; FIG. 2 is a section A-A in FIG. 1; on fig.Z - vibrodrive.

The drum dryer for bulk materials contains chamber 1 with heat, zash, and walls, loading bottle 2, transporting screw 3 for supplying wet material, perforated pipe 4 for uniform supply of wet material to the inner surface of rotating drums 5 and 6 as perforated , and continuous spirals and a discharge port 7 with a chute 8. Receiving hopper for handling - the dried material has a separating device for unloading

of the finished product in various capacities. 25 full solid. On perforated

The drum 5 has a perforation of 9 to 2/3 of the length of its spiral. The ends of the drums are closed by disks 10, a rim 11 is attached to one disk 10, a gear wheel 12 is attached to the other. The drums are located on two shafts 13 and 14 that have supporting rollers 15 mounted on one side, on the other hand, gears 16, Shaft 13 with a rigidly mounted gear wheel 16 is kinetically coupled to a rotational drive 17. The screw 3 is driven through a V-belt transmission also from the drive 17. The screw rotation frequency is controlled by the selection of the pulleys 18 and. 19, In order to discharge the spent coolant, there is a nozzle 20, the drums have an eccentric type vibrating actuator 21 with a spring-loaded connecting rod.

The dryer works as follows

The wet material is fed into the hopper 2 and the auger com. 3 is transported into the perforated pipe 4, which rotates with the drums 5 and 6. pouring material. From the perforated pipe 4, the product flows evenly onto the inner surface. Perforated

The drum 5, the perforation 9 of the drum 5 has holes that increase in diameter in the direction of the discharge unit, which ensures the classification of the material being dried and, therefore, its quality. At the initial length of the perforated drum 5, small particles of material, which are regularly arranged on its surface, are first spilled onto the solid drum 6, being blown by a coolant. At the same time, medium and large particles are blown at both the top and bottom. Increasing the heat exchange surface leads to an increase in drying intensity. As the perforated drum rotates, the dried particles spill into holes of larger diameter, while the larger ones remain. Then the process is repeated,. By the time of the unloading, the spill stops, as further drum 5 you

0

five

0

Only large particles of material remain in the drum, the dimensions of which do not correspond to the technical conditions. These particles are fed to another tank for unloading at 0 and then fed to re-grinding. This also leads to an increase in the quality of the drying material and an intensification of the drying process.

For discharging the dried material and particles that are larger than the installed ones, there is a discharging unit with a separating device. The perforated drum 5 has a length greater than a solid drum for easy discharge of the product into various containers. The registration of the beginning and end of the discharge from the perforated drum is carried out using dat-. Chicks, which regulate the position of the dividing device in the bunker, open one tank and close the other one and vice versa when unloading from another drum. As a result, the quality of the dried material is improved.

In order to intensify the material classification process, drum 5 is vibration-wired, which is. allows you to completely eliminate the movement of small particles in the total mass to the holes having a size larger than the size of particles, due to which heat exchange with air and uniform drying are carried out.

five

0

five

Claims (1)

Invention Formula Dryer for bulk materials, containing a rotating drum placed in the chamber, having a perforated spiral, which is such that, in order to improve the quality of drying when the material is moved, J From the center of the helix to its periphery, the drum is additionally equipped with a vibration drive and has a second helix, made of a solid and fixed equidistant perforated helix, the perforation of which has a size increasing in the direction from the center to the periphery. 20 Warm / Worn / Sang 1P Near material // ± eight / hf / 7 18 1 FIG. J 2