SU1287905A1 - Apparatus for concentrating solutions and pulps - Google Patents

Abstract

The invention relates to devices for concentrating solutions by flash evaporation during heat and mass transfer processes with heat-insulating solutions used in chemical and other related industrial sectors. The aim of the invention is to increase the efficiency of the process and the reliability of the operation of the apparatus by reducing the splash shield. The device contains a vertical body, straight truncated ko (L 8

Description

The null mounted in the housing along its axis and forming the input 3 and upper 4 chambers, opposite truncated cone 5, fixed with a smaller base on the straight cone in the output chamber 4, the separation plate 6 of the corona is located in the upper part of the housing, vertical pipe 10 otvo

one

The invention relates to devices for concentrating solutions and pulps by their instant evaporation and can be used in chemical and other industries during heat and mass transfer processes with thermolabile solutions.

The purpose of the invention is to increase the efficiency of the process and the reliability of the apparatus by reducing

brythgone I

The drawing shows the apparatus, longitudinal section.

The apparatus for concentrating the solutions and pulps consists of a vertical body 1, a straight truncated cone 2 installed in the body along its axis and forming an inlet 3 and an exit 4 chamber, a reverse truncated cone 5 fixed by its smaller base on a straight cone 2 in the output chamber 4, the separation plate 6, located in the upper part of the housing, the nozzle 7 of the input of the initial solution tangentially connected to the input chamber 3, the nozzles 8 and 9 of the output of the evaporated solution and the juice steam, respectively, of the vertical patra 10 of the gas-liquid mixture, installed in the outlet chamber 4 along the axis of the housing and located by the lower end in the inlet chamber 3, a multi-blade swirling device 11 mounted on the lower part of the vertical pipe 10 coaxially smaller base m of truncated cones 2 and 5, and the separation element 12 installed inside the vertical pipe 10 of the gas-liquid mixture outlet, the upper end of which is located above the big axis 287905

Yes, gas-liquid mixture installed in the outlet chamber 4 along the axis of the housing and located with the lower end in the inlet chamber 3, a multi-lobed twister 11 fixed on the lower part of the vertical nozzle 10 coaxially smaller than the base m of the truncated cones 2 and 5, 1 z. f-ly, 1 ill.

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innovation truncated cone 5.

The device works as follows.

The initial solution through the tangential nozzle 7 is fed into the inlet chamber 3, in which the solution twists. The solution along the tapering walls of the cone 2 moves upwards, the diameter of rotation decreases, the axial velocity of the solution increases. The pressure of the solution becomes less than the saturation pressure at a given temperature and the solution boils. Due to evaporation, the volume of the vapor phase increases, the bubbles of which rise to the interface, i.e. to the center of the apparatus, a gas (p. aro) liquid flow is formed with a denser structure at the periphery and less dense at the center.

As the volume of the vapor phase increases and the radius of rotation decreases, the axial axis increases and the tangential velocity components decrease. A swirl pass - swirling device 11 - the peripheral part of the flow acquires an additional rotation. In the field of centrifugal forces, the solution is separated from the steam and is discharged through the outlet cone 5 into the outlet chamber 4 and further out through the nozzle. 8. The axial part of the flow through the nozzle 10 passes through the element 12 and twists. The droplets of the solution are dropped by the centrifugal force on the wall of the nozzle 10, merge into a film that moves up and on the outer side of the nozzle 10 flows down. The steam rises up, is additionally separated on the separation plate 6 and is removed through the pipe 9.

Claims (2)

1. An apparatus for concentrating solutions and pulps, containing a vertical case, a straight truncated cone mounted in the case along its axis and forming an inlet and outlet chambers, a reverse truncated cone fixed by a smaller base on a straight cone in the output chamber, a paraffying plate located in the upper part of the body, a pipe for introducing the initial solution tangentially connected to the inlet chamber, and outlet pipes for one stripped off solution and juice steam, so as to increase the efficiency of the process and reliability Editor E. Papp Order 7748/8 Compiled by A.Tarasov - Tehred A. Kravchuk Corrector Circulation 656 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, Projecto st., 4 operation of the apparatus by reducing the sprigunos, it is equipped with a vertical pipe outlet of gas-liquid mixture installed in the outlet chamber along the axis of the housing and located lower end in the inlet chamber, and multi-blade spinner mounted on the lower part of the vertical pipe coaxially smaller base m of truncated cones. 2. The apparatus according to claim 1, about aphids and the south- and with the fact that it is equipped with a separation element installed inside the vertical pipe branch of the gas-liquid mixture, the upper end of which is located above the large base of the truncated reverse cone. Proofreader S. Shekmar