SU1158831A1 - Drier - Google Patents

Abstract

A dryer containing a pneumatic tube, connected to a casing and connected to a loading device, is characterized in that, in order to improve the quality of drying of lumped and lumpy materials, an additional chamber is installed along the axis of the pneumatic tube; horizontal guide plates with discs fixed in them having through-holes, and the bottom wheel plate disc is made with a recess extending in the direction of the upper shaft.

Description

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The invention relates to a technique for drying materials and can be used in mining and thermally, chemical, industrial, building materials and other industries.

The purpose of the invention is to improve the quality during the drying of lumpy and lumpy materials,

FIG. 1 shows a dryer, a longitudinal section; in Fig.2 - the same, top view.

The dryer contains a casing 1, a loading device 2, a pneumatic tube 3, an equidistantly mounted casing 1 on shock absorbers 4, a chamber 5 formed by a system of reusable plates 6 with disks 7 fixed in them with through holes 8, horizontal guides 9 leaving through sealing elements (for example, bellows) 10 mounted on the walls of the pneumatic tube 3 and the casing 1 outside the dryer, a discharge funnel 11, supply pipes 12 and a discharge I3 of the heat carrier, and the disk 14 of the bottom Russa plate 15 is filled with a recess 16 expanding direction of the overlying tier, pnevmotruba 3 arranged with a gap 17 of Br bottom of the dryer 18 and is provided with a heater 19,

The dryer works as follows.

After switching on the drive, the plates 6 connected to it through the guides 9 begin to move in a horizontal plane in different directions relative to each other. After that, feed material is fed into the feed funnel 2, which enters the entrance of the vertical chamber 5, and then under the influence of gravitational forces fills the entire chamber, where it is subjected to dynamic grinding between the disks 7 of two adjacent plates 6 due to the difference in linear velocities of their movement under the action of compressive, tensile and shear forces. In this case, the crushed material as a result of continuous periodic displacement of the disks is ejected into the gap formed by the disks 7, where it is ground to the required fineness. The fineness of grinding is regulated by the size of the gap between the disks 7. The crushed material ejected from the gap as a result of periodic displacement of the plates 6 with the disks relative to each other in the horizontal direction, enters the drying chamber formed by the pneumatic tube 3, where it is washed by a coolant introduced through pipes 1 2 and the gap 17. The spent coolant is discharged through the nozzles 13. By changing the frequency of the reciprocating movement of the guides 9, it is possible to adjust the frequency of the pulsations of the disks 7 depending on voystv material to be dried. In addition, you can set different pulsation frequencies for each of the discs 7 to stabilize the material drying process as it advances to the discharge funnel 11, as well as intermittent supply of material B to the drying chamber, which improves the intensive mixing of the dried material with the coolant. The small particles ejected from the gaps between the disks 7 by dynamic forces into the drying chamber under the action of gravity, and large particles of material with greater kinetic energy are additionally heated from the 19 stubers to the heaters and partially deposited on them, and partially lowered due to gravitational forces, Nitrile mixing of the material with the coolant in combination with a low velocity of the flow of the coolant and additional heating of large particles of the material the heated walls of the pneumatic tube ensure a rather efficient carrying out of the suiting process, increases productivity, allows to transport the material without increasing energy costs and prevents dry material from being carried away, which allows the dryer to be used to prepare material samples for analysis, unloading the pneumatic material deposited on the walls. pipe 1 material is carried out under the action of vibration oscillations on

 shock absorbers 11 of its walls by uneven scattering of particles of material from gaps 5 between the disks, which allows grinding and drying of the material in the entire volume of the pneumatic tube, which results in reduced material segregation and improved particle size, representativeness and quality of the finished product. Work performance

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the surface of the disk 14 of the bottom plate 15 with a notch 16 with inclined side walls and an outlet opening facing the overlying torso, allows, due to dynamic forces when moving the disk 14 with the plate 15, to feed the material in it into the inclined walls 16 between discs

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where it is crushed and thrown into the drying chamber, as a result of which, after grinding the material, the bottom of the excavation does not have any residual material, as a result of which the quality and representativeness of the subsequent material for grinding and drying does not decrease.

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Claims (1)

DRYER POGOGOVICH A.I. A dryer containing a pneumatic tube enclosed in a casing and connected to a loading device, characterized in that, in order to improve the quality of the drying of clumping and lump materials, an additional chamber is installed along the axis of the pneumatic tube, formed by a system of loyally placed with the possibility of autonomous movement in horizontal guide plates with disks fixed therein having through holes, and the lower tier plate disc is made with a recess expanding toward the overlying tier.