SU1242195A1 - Column counter-flow adsorber - Google Patents

Description

The invention relates to the chemical industry, namely to environmental protection, and can be used for adsorption purification of water, industrial wastewater, as well as process solutions.

The purpose of the invention is to increase the efficiency of the cleaning process by eliminating the loss of the adsorbent during its dosing (loading) into the apparatus by deaerating the adsorbent by soaking under vacuum.

The drawing schematically shows the proposed column countercurrent adsorber semi-continuous action, a general view.

The apparatus is a hollow column, divided into sections 1, perforated with unharmonized grids 2, turning around its horizontal axis at an angle, in the upper expanded part of which there is a loading device for dispensing dry sorbent. The loading device contains a funnel 3 with a loading nozzle 4 and an unloading nozzle 5, closed at the outlet by a stopper 6, connected through a system of levers 7 to a pneumatic cylinder 8, a hopper 9 with a cone-shaped outlet, having openings 10 for liquid overflow, protected from the inside by the grid 1 1, and from the outside - by rotary check valves 12, and located above the upper edge of the expanded part of the column. From below, the outlet nipple 13 of the hopper 9 is blocked by a flap 14 connected by a system of levers 15c to a pneumatic cylinder 16. At the top of the bunker 9 there is a nipple 17 for connection to a vacuum system (not shown). In the upper expanded part of the column there is a device for removing the purified liquid, made in the form of an annular outer chute 18 with fitting 19. In the lower part of the column there is a distributing device, made in the form of a perforated cone 20 for supplying the solution to be purified through fitting 21. Through fitting 22 from the apparatus the spent adsorbent is removed.

The operation of the apparatus consists of two periods: the period of stationary residence of the adsorbent on the plates 2 in the fluidized state and in the bun

five

0

five

keru 9 boot device in a fixed bed, as well as the period of transport of the adsorbent.

In the first period, the liquid phase is supplied to the lower part of the column through fitting 21, continuously passes from bottom to top through a series of successive sections of column 1, the fluidized adsorbent layer on the plates 2 and the adsorbent by the extractable component is cleaned and removed from the apparatus through fitting 19. At the same time, a portion of the adsorbent present in the hopper 9 of the loading device is prepared for work by soaking under vacuum. After some time required for carrying out the mass exchange process on the plates 2 and sufficient for zamachi) weeding (5 cent in the hopper 9 of the loading device, the period of transport of the sorbent from the lower plate 2 begins, which turns around some horizontal axis. As the sorbent is poured from the plate 2, it returns to the horizontal position. Then the rest of the plates are also successively applied. After the top plate is emptied and returned to its original horizontal position That is, a signal is sent to the pneumatic cylinder 16, the piston of which is connected by a system of levers 15 s behind (thin 14. When the pneumatic cylinder I6 is moved upwards, the flap 14 of the lower nipple 13 of the bunker 9 opens, and the wetted adsorbent flows into the upper plate 2. The vacated volume through the same fitting 13 is filled with purified liquid to the level of overflow in the apparatus corresponding to the upper edge of the expanded part of the column,

 whereupon the shutter 14 is returned by moving the piston of the pneumatic cylinder 16 to the initial position. Then opens the plug 6 on the funnel 3 by giving a signal to the pneumatic cylinder 8.

0 From the batch weighing dispenser (not shown), a fresh portion of the adsorbent through the nozzle 4 of the funnel 3 enters the hopper 9 of the loading device. At the same time, the volume of water displaced by the adsorbent 55 is removed from the bunker 9 through the windows 10. The adsorbent that has not settled and melts on the surface is retained by the net 11 installed with

3 12421954

The ream side of the windows 10 in the bin 9.new (not shown) to the vacuum line.

The stopper 6 on the funnel 3 is closed. Carrying out the process under the superexchange of the piston of the pneumatic cylinder 8 makes it possible to shorten the time for soaking the initial position. Dp intensification of the adsorbent to the period

During the soaking process and the deaera-j of the stationary stay after the adsorbent, the hopper 9 is connected to it on the plates in a fluidized bed through a pneumatic valve-state system.

Claims (1)

COLUMN FLOW-UP ADSORBER, having a hollow column with an upper expanded part, a loading hopper made with windows closed by nets and a cone-shaped outlet part, a device for draining the purified solution, a dispenser for supplying the solution to be cleaned in the lower part, characterized in that, for the purpose of increasing the efficiency of the cleaning process by eliminating adsorbent losses during its loading by deaeration of the adsorbent by soaking under vacuum, the loading hopper is equipped with an Easlotsky outlet and fitting for connection to a vacuum line and an addition funnel with a stopper at the top of the hopper and the bottom of the hopper is located in the enlarged portion of the column, and means for discharging purified solution is made in the form of an annular outer trench. o ’s- SU. „, 1242195 1 1242195 2