SU731237A1 - Apparatus for drying and heat-treating of loose materials in vibrofluidised bed - Google Patents

Description

more completely in the form of a heat exchanger, for example, in the form of a box with rows of pipes and pipes located in it, according to; KOTOpbiiM, the heat carrier is moving, and moving under the action (Own mass: between the pipes is a material body. This is also from cyclol // the smallest dry particles of the material are transferred through the lower gas distribution tube. 3, and pneumatically transported into the cyclone / ./ from the chamber / through the pipe 10. Thanks to the contact heat and mass transfer between the dry small particles and the wet material, as well as the heating of the material for € evenheat transfer from the pipes of the feeder 2, partial drying of the wet material takes place.From the feeder 2, the previously dried material is fed to the gas distribution vibrating trays 3. harmoniously oscillating at a certain angle of vibration 3. Here the material is separated and separated into separate fractions. -frame layer of the coolant in the direction from top to bottom on the vibrating channel 3 different rus. And in cash. w.drawing from the bottom up on the vibrating channel 3 upper rus, transportation of various fractions to. narrow bunkers 4.

The amount of moisture in the material depends on its fractional composition: the smaller the particles, the greater their humidity. In accordance with this, to obtain a predetermined final moisture content of the entire material. Tial requires a different heat treatment time for the coarse and finer fractions: more prolonged for small, shorter for coarse. In the proposed device, the various heat treatment times are achieved by the fact that the vibrating trays 3 are inclined with each other at an angle varying from 2 to 30 °. This, at the same time, each Bibrotok 3 is inclined at a different angle to the direction of view. The lower bottom 3, and which contains more small (wetter) fractions, is set at a smaller angle to the direction of the Injection, which reduces the rate at which particles are transported and increases their heat treatment time. Vibrating channel 3, and of which the larger (less wet) f are located; they are set at a greater angle to the direction of vibration, which reduces the heat treatment time.

Thus, in the discharge bins: various fractions of the material come from approximately the same humidity.

UGO.Naklo.na.volibolokov 3 between them 2-30 ° is selected based on the fact that the maximum angle of inclination of each vibratock 3 to the mountain of isotop cannot exceed 15 °, and the greater angle will be no vibrotranspo. This means that the material will roll off the screed 3, regardless of the angle of the vibrator. When the angle between the vibrating troughs 3 is less than 2 °, the rate of vibrodisposing of the material “and they will be approximately the same, which will entail the same heat treatment time of large n small fractions.

The spent heat carrier is divided into two streams, one of which, together with the screened imis, passes through the bottom 3 of the lower russ. Fine dry particles along the dust line 10 is sent to the cyclone 11, the other through the discharge pipe 6 to the feeder 2, where Serves to dry incoming wet matbriah.

Thus, in the installation described here, the amount of heat treatment of large and small: fractions and, moreover, recirculation of the heat transfer medium and processed material is carried out, which improves the quality of heat treatment and reduces energy costs.

Invention Formula

A plant for drying and heat treatment of bulk materials in the vibrating layer, mainly of non-ore building materials, containing a chamber with a feeder, inclined gas distribution vibrolocks along it, connected to each other and equipped with individual discharge bins, inlets of the inlet. And heat The carrier is about the fact that, with the aim of increasing the quality of drying, the discharge bins are installed at one end of the vibrolotts of both Rus and the cavity under the vibrolot. Remote pyleprovoda yuchena by the cyclone and to the feeder, the latter being installed in the heat medium discharge pipe, and vibrating chute made with a decreasing uo material downstream of alive th section.

The source of information, i.r.inty in the examination during examination:

1. USSR author's certificate No. 233530, cl. F 26 B 17/26, 1964.

Claims (1)

Claim Installation for drying and heat treatment of bulk materials. In a vibro-boiling layer, mainly non-metallic building materials, containing a chamber with a feeder, inclined gas-distributing vibratory trays, connected with each other and equipped with individual discharge bins, chambers for supplying and discharging a coolant, characterized in that, In order to improve the quality of drying, the discharge hoppers are installed at one end of the vibratory trays of both tiers, and the cavity under the vibratory tray of the lower tier is connected in the middle Twomey remote pyleprovoda cyclone and to the feeder, the latter being mounted in the coolant outlet nozzle, and vibrating chute made with a decreasing forward facing section living material. Source of information taken into account during the examination: 1. USSR copyright certificate No. 2.33530, cl. F 26 B 17/26,, 1964.