SU1494909A1 - Apparatus for concentrating viscous media - Google Patents

Abstract

The invention relates to apparatus for the concentration of thermolabile substances and improves the quality of the target product by eliminating its local overheating and thermal decomposition. In the apparatus, containing a cylindrical body, inlet and outlet nozzles, a hollow shaft divided in length into four sections, between which there are differential gear transmission mechanisms, enclosed in protective shells, whose planetary gears are rigidly fixed on adjacent sections of a hollow shaft, mounted on a shaft, and the central axis passing inside it, with axles of satellites of the middle transmission mechanism fixed on it. The central axis is rotatably mounted, with the sections of the hollow shaft adjacent to the middle transmission mechanism being made in the form of two movable cylinders inserted one into another, with the central gear and axis of the lateral gears rigidly mounted on the inner cylinder. A planetary gear of the lateral transmission is rigidly mounted on the outer cylinder and the blades of the corresponding section are fixed. As the blades move, a roller of fluid forms in front of them, which is forced into the gap. The presence of high shear rates in the gap will lead to a strong heating of the liquid and its evaporation. The solution is concentrated, its viscosity increases. The presence of a differential mechanism provides automatic regulation of the speed of rotation of the blades in each section and ensures optimal process conditions. 3 il.

Description

The invention relates to apparatus for the high concentration of various substances produced in the microbiological, chemical, pharmaceutical and food industries.

The aim of the invention is to improve the quality of the target product by preventing local overheating and. thermal decomposition.

On Lig.) Shows the apparatus, a longitudinal section; FIG. 2 is a section A-A in FIG. 1; in Fig „3 - section BB in figs 1,

The apparatus contains a cylindrical body 1, a nozzle 2 for supplying the initial solution, a nozzle 3 for retracting secondary steam and an outlet nozzle 4 o. Inside the case is 1- (there is also a central axis 5 on which a hollow shaft 6 is mounted, consisting of separate sections between which differential transmission mechanisms; NII 7 and lateral 8 environments, enclosed in protective covers 9. Axis 10 satellites

11 of the middle gear mechanism 7 is rigidly fixed on the central axis 5, which has the ability to rotate Planetary gears 12 of the middle gear mechanism 7 are rigidly mounted on the inner cylinders 13 of the middle sections of the hollow shaft 6 The same cylinders 13 are rigidly mounted on the axis 10 of the satellites 11 of the side gears 8 . On the outer cylinders 14 and on the extreme sections of the hollow shaft 6 gears are rigidly mounted.

12 side gears 8, as well as rigidly fixed blades 15, forming a gap with the body

I apparatus.

The rotor of the apparatus has four degrees of mobility. The speed of rotation of the LO paste 15 in each of the sections is determined by their resistance to the movement of a viscous fluid, which penetrates as the fluid passes along the apparatus. The angular velocities of rotation of the blades and the viscosity of the fluid in the apparatus sections are interconnected with each other. the geometric dimensions of the blades ratio

 W; m

jyu

where WITH; - angular rotation speed

i-th section; M; - average fluid viscosity

in the i-th section

In this way, the ratio (U f (co)) is provided, which is equivalent to the automatic control of the intensity of dissipative heat release in the stirred film of liquid when its viscosity varies along the length of the apparatus,.

The device works as follows

to

15

20

25

thirty

35

40

45

50

55

Central axis 5 is rotated. Together with it, the axles 10 of the satellites 11 of the middle transmission 7 rotate. The torque is transmitted from the satellites 11 to the planetary gears 12, which through the internal cylinders 13 transmit it on the axis 10 of the satellites 11 of the lateral transmissions 8 The driving moment of the planetary gear 12 mounted on the outer cylinders 14 and the outer sections of the hollow shaft 6o. The blades 15 located on the cylinders 14 and the outer sections of the shaft 6 begin to rotate and move in front of them a film of liquid that is under When the blades 15 move, a roller of liquid forms in front of them, which is centrifugally pressed into the gap between them and the body 1 of the apparatus. High shear rates in the gap lead to strong heating of the fluid and its evaporation into the free space of the apparatus Secondary steam pipe 3 is removed and the finished product is discharged through pipe 4. The covers 9 protect gears of the transmission gears 7 and 8 from corrosion and also prevent the lubricants from contaminating the finished product. and necessary for the normal operation of gears.

As the fluid moves along the apparatus, some of the water evaporates, the solution concentrates and its viscosity increases along the length of the apparatus.

The apparatus has four degrees of Freedom; therefore, the rotational speed of the mouths in each section is determined by additional external connections, namely the resistance exerted by the fluid of the blade 10 moving in it, the viscosity of the fluid as it passes along the apparatus increases.

Thus, spontaneous regulation of the speed of rotation of the blades in each section is provided, and consequently, the impossibility of burning the product in a wider range of changes in its physicochemical properties, provides the most optimal process conditions, which allows a significant improvement in the quality of the product.

Svorka Disk

U;

F1 / e.Z

Claims (1)

SUMMARY OF THE INVENTION An apparatus for concentrating viscous media, comprising a housing with nozzles for supplying, discharging the medium to be treated and venting the gas mixture, a hollow shaft with blades divided in length into sections, differential gears located between sections, planetary gears of which are rigidly fixed to adjacent hollow sections shaft, a central axis mounted inside the shaft with satellite axles of the middle gear rigidly fixed to it, characterized in that, in order to improve the quality by preventing local overheating and thermal decomposition, the central axis is rotatably mounted, the shaft sections adjacent to the middle transmission mechanism are made in the form of two movable cylinders placed one in the other, while the planetary gear of the middle and satellite axes are rigidly mounted side gears, and on the outer cylinder the planetary 15 gear of the side gear is rigidly mounted and the blades of the corresponding section are fixed ” Fie. 1 Aa FIG. 2 FieZ