SU799781A1 - Apparatus for trapping lightweight phase - Google Patents

Description

(54) DEVICE FOR COVERING EASY-PHASE

This invention relates to chemical process technology and is intended to clean the raffinate from the light phase after the extraction process. A device for trapping a light phase is known, which contains a settling tank in the form of a tank with fittings for supplying the initial solution and withdrawing the separated phases 1. A disadvantage of the known device is low productivity. The closest to the technical essence of the invention is a device for separating a light phase, comprising a housing divided by inclined partitions into chambers, and fittings for input and output of phases f2. The disadvantage of this device is the low productivity and efficiency of phase separation. The purpose of the invention is to increase the productivity of the device by increasing the degree of phase separation. This goal is achieved by the fact that the device is equipped with catching pockets and nozzles for outputting the light phase, placed on the partitions at their apexes, while the partitions are made in cross section. Scientific research institutes in the form of corners with the top directed upwards, and branch pipes are executed in the form of truncated cones and located coaxially with each other. FIG. 1 shows schematically a device, a longitudinal section / in FIG. 2 shows section A-A in FIG. 1 (on an enlarged scale); on fig.Z - section bb in fig. 2 (on an enlarged scale). The device for trapping the light phase contains a settling horizontal rectangular closed container 1. To introduce the initial solution into the container lid, the nozzles 2 are welded in, and the nozzle 3 in the end wall of the vessel is withdrawn to release the cleaned raffinate. In front of the nozzle 3, there is a water seal formed by vertical partitions 4, the upper edges of which form an overflow threshold for the purified raffinate. The container 1 is divided in height by continuous partitions 5 into separate flow-through settling chambers 6. In the specific example of execution, the capacity is divided into six such, but their number may be different, in particular, for coarse cleaning, the number of chambers can be reduced, for example to three.

In the cross section of the tank (Fig. 2), the partitions are made in the form of a symmetric angle with the apex directed upwards. The catching pockets 7, formed by two vertical 8 and one lower 9 walls, are attached to the lower surface of the partitions. The vertical walls form an angle with the apex directed in the direction of movement of the initial solution — the raffinate being cleaned (Fig. 3).

On the lid of the tank 1 in its middle part and along the entire length, the right coal collector 10 of the light phase is removed, which is removed by the zem from the apparatus. In order to output the light phase from the volume of the tank 1 to the reservoir 10, there are composite vertical ducts 11 composed of conical nozzles 12 partially parting each other; Each nozzle 12 is fixed to a large base on the upper side of the partition wall, where a through hole is made at this place. The upper part of the nozzle passes through the carmine of the overlying partition and enters the cavity of the adjacent nozzle above, thus forming the vertical channels 11 communicated with the light phase collector 10 The lowermost nozzles with its lower part are connected with the catch pockets of the lower partition.

Vertical channels 11 are placed along the length of the tank 1 at intervals determined by the flow rate and the intensity of cleaning the raffinate, for example, 1.5-2 m.

The light phase trapping device operates as follows.

The level of the initial solution in the apparatus is determined by the height of the water seal threshold 4. Inlet ports 2 are lowered below the level and are above the upper partition 5. This ensures a smooth flow of raffinate to the apparatus to be cleaned. The entire flow in the vessel is divided by the separations 5 into separate streams, the number of which in this example is six. The light phase particles, moving in the directions of the total raffinate flow, rise upwards and reach the bottom surfaces of the partitions 5. These particles then move along the partitions, accumulating in their middle (axial) zone, which is facilitated by the shape of the shelves in the cross section of the tank 1 the easy phase gets into the pockets; communicated with the conical nozzles 12. Thus, the vertical channels 11 together with the pockets 7 concentrate the light phase and direct it to the collector 10, and the raffinate, more and more clearing as it moves from the channel to the channel, enters the hydraulic lock. The number of sections in the water seal corresponds to the number of individual settling chambers 6, which contributes to the uniform removal of the purified raffinate through the discharge threshold

Q shutter to exhaust connections 3.

The light phase through the nozzles 12 enters the collection 10, where it additionally stands and is removed from the apparatus.

Due to the fact that in order to trap the light phase, its particles need to rise not to the full height of the tank, but only to the height of a separate chamber (6 times less), the cleaning process is intensified. Capacity

0 can be dramatically reduced, i.e. save production space, metal consumption and cost of cleaning devices and technological process in business. In addition, with decreasing

5, the volume of the settling tank decreases the required amount of raffinate, which increases the efficiency of the extraction process.

Claims (2)

1. A device for trapping light phase, comprising a housing divided by partitions into chambers, and fittings for input and output of phases, characterized in that, in order to increase the productivity of the device by increasing the degree of phase separation, the device is equipped 0 catching pockets and nozzles and the output of the light phase, while the partitions are made in the cross section in the form of corners with the apex directed upwards, and the nozzles are placed on the partitions at their peaks. 2. The device according to claim 1, characterized in that the nozzles are made in the form of truncated cones and are aligned with each other. 0 Sources of information taken into account during the examination 1. Planovsky A.N. and others. Processes and apparatuses of chemical technology. M., Chemistry, 1968, p. 646-647. 5 2. Japanese Application No. 53-8059, cl. At 01 D 17/00, 06/20/73. g / X