SU597406A1 - Mass-exchange apparatus - Google Patents

Description

one

The invention relates to equipment for conducting mass transfer, mainly adsorption processes in the chemical industry in a gas solid system, as well as in a gas system.

(vapor) - liquid (predominantly in the gas - microspheric adsorbent).

Known mass transfer apparatus, comprising a housing with plates, contact devices in the form of truncated cones Attached to the underside of each plate, and overflow devices 1

The disadvantage of this device is & -. Comparatively low gas flow velocities (1-2 m / s), calculated for the free cross-section of the apparatus.

The purpose of the invention is to intensify the process. mass exchange and increase in the efficiency of the apparatus due to a significant increase in the gas flow rate to the free cross-section of the apparatus (O2O m / s).

The goal is achieved by the fact that the machine has a device installed on the plate above the contact, a sapping device made of profiled blades with a fairing embedded in it, the upper part of which is included in the contact device of the overlying plate and a coaxially installed additional contact device made in B1 of the tilted cone variable cross section. In addition, a figurnal insert is attached to the housing of the apparatus, the lower part of which is located in the gap between the contact device and the additional contact device, and the upper part is attached to the housing and the lower end of the overflow device is placed above it.

The fairing of the separating device is made in the form of two cones articulated with bases.

FIG. 1 is presented. mass transfer apparatus, longitudinal section; on ft. 2 is the same, a cross-section along the line A-A in FIG. one; in fig. 3 is a section along BB in FIG. one; in fig. 4 - node I on fkg. 2

The device consists of a body 1, inside which several plates are placed along the height. Each plate includes a contact device 2 in the form of a truncated Koiryca with a separating device 3 located at the top of its eGe made of profiled blades 4; additional contact device 5, made in the form of an inverted cone of variable cross section; Peyutoki 6; FIG.) an inset composed of two truncated cones 7 and 81, a fairing 9 in the form of two. cones, articulated grounds.

The overflows 6 are devices made in the plan as a part of an annular cross-section, bounded on three sides by the profiled housing 1O, and on the fourth side — on the inner wall of the housing 1 of the apparatus. The overflows are evenly distributed at the inner surface of the apparatus case and fixed on the disk 11, in which there are also grooves of a similar section for the passage of overflows coming from the top plate. 1) in FIG. 4 hatched U position).

The disk 11 also has slots 12 for creating a circulation of a portion of the solid (or liquid) phase in the plate. .

In addition, the apparatus has a fitting 13 for draining the spent solid (liquid) phase from the apparatus and a fitting 14 for draining the purified gas stream from the apparatus, a fitting 15 for introducing into the apparatus a solid (liquid) phase.

Between the upper end of the cone 5 and the lower end of the shaped insert there is an annular gap for removing the microspherical adsorbent (or liquid) after the exit from the separation device 3.

Between the lower end of the contact device 2. and the upper conical surface of the shaped insert there is an annular (or discontinuous) slot for the exit of a solid (or liquid) phase into the space of the contact device. The upper cone 8 curvature provides the movement of the microspherical adsorbent (or liquid) on the inner surface of it to the annular gap.

The device works as follows. The microspherical adsorbent (or liquid), entering the upper plate of the apparatus along the clamp 15 b area between the KOH-Intact device 2 and the upper part of the figure insert, moves by gravity along the inner surface of the cone 8 of the figure insert and through the annular (or intermittent) slot enters the the space const aKTHoro device 2, rd is picked up by a gas stream moving from below

upward at high speed (1O-2O m / s). In the drawing, the movement of a solid (or liquid) phase is shown by a solid line, and the movement of a gas stream by a dashed line,

Pass the area of the contact device,

The solid (or liquid) phase with gas flow enters the separation device 3 for centrifugal separation of the phases. The interaction of the phases continues in the auxiliary contact device 5.

Separated from the solid (or liquid) phase falls on the disk 11, whence a part of it

The overflows 6 enters the underlying plate, and some through the slots 12 into the circulation to increase the residence time of the solid (or liquid) phase on the plate.

The solid (or liquid) phase, moving from above the V1ShZ from plate to plate along the overflows, leaves the apparatus through the nozzle. 13, and the gas flow, having passed all the steps, leaves the upper part of the apparatus through

fitting 14. Thus, each stage operates in a continuous flow mode. The interaction of the phases, and the apparatus as a whole - in countercurrent.

thirty

Claims (2)

Formula from. bret "rot 1, a mass transfer apparatus, mainly for adsorption processes, including a body with plates, contact devices in the form of truncated cones attached to the lower side of each plate, and overflow devices, in order to intensify the process and increase the efficiency of the apparatus , the device is equipped with a separation device placed on a plate above the contact device, made of profiled blades with a fairing embedded in it, the upper part of which is included in the contact device The design of an overlying plate and a coaxially mounted optional KOHTaKTHbnvi device made in the form of an overturned truncated cone of variable cross section. 2. The mass transfer apparatus according to claim 1, differs by the fact that an insert is attached to the case, the lower part of which is placed in the gap between the contact device and the additional contact device, and the top part is attached to the case and above it