SU1101648A2 - Vibrating drier for loose materials - Google Patents

Abstract

VIBRATION DRYER FOR BULK MATERIALS by author. St. No. 989279, characterized in that, in order to reduce energy consumption and metal consumption, the screw tray is thin-walled; . (I'm 05 00

Description

The invention relates to applications for heat treatment (drying, heating, decomposition, etc.) of bulk materials using the effect of vibration exposure.

According to the main author. St. No. 989279 known vibratory dryer for bulk materials, containing a heat-insulated casing and a heated vibrating conveyor placed inside it, made in the form of a vertical screw tray, and U-shaped racks covering the height of the tray, and between the coil of the latter, and between the tray and the racks gaskets of electrically insulating material are installed, and the tray is connected to the power grid 1.

A disadvantage of the known vibrating drier is high energy consumption and metal consumption.

The purpose of the invention is to reduce energy consumption and metal consumption by making a screw tray thin-walled.

This goal is achieved by the fact that in a vibrating dryer for bulk materials, containing a casing with a stirring, inside it, a heated vibrating conveyor, made in the form of a vertical screw tray, and U-shaped racks, covering the tray in height and gaskets of electrically insulating material, are installed between the tray and the racks, the screw tray on each turn at the location of the U-shaped racks is provided with rectangular brackets covering the tray along the perimeter, and gaskets are installed between the walls x bracket.

FIG. 1 shows a dryer, a plan; in fig. 2 is a view A of FIG. one; in fig. 3 is a section BB in FIG. 2

Vibration dryer contains casing

IC with a vibrating conveyor, made in the form of a thin-walled vertical screw tray 2, equipped with U-shaped racks 3 and electrical insulating gaskets 4, loading nozzles 5, unloading 6 and nozzles 7 suction of exhaust gases. On each turn of the 2-pole 2 at the place of installation of the racks 3 times. The bracket 8 is rectangular in shape, through which a tray 2 attached to this bracket 8 passes, with the bottom 9 and the top 10 of the wall of the bracket 8 parallel to the plate.

IIvibrodrive 12, to which the U-shaped racks 3 are pressed receiving

. transporting tray 2, electrically insulating gasket 4 is installed between the upper 10 and lower 9 walls of adjacent brackets 8 and between the brackets 8 and the upper crossbars of the U-shaped racks 3.

Vibration dryer works as follows.

When electrically heated transporting tray 2, its thermal deformation occurs, accompanied by an increase in its linear dimensions. Spring-loaded U-shaped racks 3, covering the brackets 8 of rectangular shape, through the hole,

in which trays 2 rigidly attached to them pass, do not prevent thermal deformation of the structure, thereby unloading it from thermal stresses.

Dynamically known variable forces

(vertical force and toughness, moment) from vibration actuator 12 are transferred to tray 2 due to friction forces, which provide compression by means of an electrically insulating pad 4 of brackets 8 among themselves by means of spring-loaded U-shaped struts 3. Under

the action of dynamic forces on the tray 2 starts the directional vibratory displacement of the material being dried upwards from the loading nozzle 5 to the unloading nozzle 6. In the process of vibratory displacement over the heated tray, the material is effectively dried. The resulting vapors are discharged from the casing 1 through the exhaust gas suction nozzle 7. The advantage of the vibration nibrika equipped with rectangular brackets over the vibrating drier, made according to the well-known scheme, which is a basic sample, consists in the following.

Electrically heated trays of the transporter can be made thin-walled, since considerable (up to 2-3 t) compressive forces

turns, the U-shaped racks will be perceived as strong and rigid rectangular-shaped brackets, through a hole in which a thin-walled tray rigidly attached to this bracket passes, which allows

the required power of heat removal at a much shorter length, since the electrical resistance, which determines the heat dissipation of the Trap (), is directly proportional to its length and inversely proportional to the area of its cross section.

The use of a lighter and less long transporting tray reduces the size and weight of the oscillating structure, which allows the use of a less powerful and energy-intensive oscillation pathogen and reduces the dynamic forces on the foundation. Thus, with the help of the invention, any thermally defined thermal process (drying, heating, etc.) is carried out in an apparatus with better specific indicators than the known one.

The use of the proposed design of a rectangular bracket in combination with a 2.5 mm bottom and walls of an electrically heated tray (instead of 6 mm) for a vibratory dryer with a capacity of 1000 kg / h for dry material and 100 kg / h for evaporated moisture reduces the mass of oscillating parts by 50%, height of the device by 30%, drive power by 400/0.

In id

FIG. 2

Claims (1)

VIBRATION DRYER FOR BULK MATERIALS by ed. St. No. 989279, characterized in that, in order to reduce energy consumption and metal consumption by making the screw tray thin-walled, the latter at each turn at the location of the U-shaped racks is equipped with rectangular brackets wrapping around the tray around the perimeter, and gaskets are installed 'between the walls of adjacent brackets. Figure 1