SU593724A1

SU593724A1 - Mixing-dissolving apparatus

Info

Publication number: SU593724A1
Application number: SU762324576A
Authority: SU
Inventors: Владимир Борисович Выскребцов; Александр Семенович Заец; Александр Федорович Немчин; Александр Николаевич Тимонин; Георгий Тимофеевич Тодорашко; Игорь Михайлович Федоткин; Виктор Николаевич Гладкий
Original assignee: Киевский Технологический Институт Пищевой Промышленности
Priority date: 1976-02-16
Filing date: 1976-02-16
Publication date: 1978-02-25

Description

(54) СМЕСИТЕЛЬ-РАСТВОРИТЕЛЬ(54) MIXER-SOLVENT

1one

Изобретение касаетс перемешивани и может использоватьс в химической, пищевой и других отрасл х промышленности .The invention relates to mixing and can be used in the chemical, food and other industries.

Известен смеситель, содержащий корпус с технологическими патрубками, камеру смешени , колеса с лопатками и дефлёкторными устройствами, установленные на валу, в камере смешени установлены , неподвижные смесительные элементы l .A mixer is known, comprising a housing with process nozzles, a mixing chamber, wheels with blades and deflector devices mounted on a shaft, and fixed mixing elements l are installed in the mixing chamber.

Однако в таком смесителе степень гомогенизации и диспергировани недостаточна вследствие неравномерной подачи подмешиваемого вещества.However, in such a mixer, the degree of homogenization and dispersion is insufficient due to the uneven supply of the substance to be mixed.

Затраты времени на обработку одной и той же массы смешиваемых веществ велики, что приводит к уменьшению производительности , а следовательно., к увеличению удельных энергетических затрат на смешивание.The time spent on processing the same mass of mixed substances is large, which leads to a decrease in productivity and, consequently, to an increase in the specific energy consumption for mixing.

Наиболее близкий к изобретению смеситель содержит корпус и полый вал с закрепленными на н.ем лопаст ми, выполненными в виде трубок с соплами 2.The closest to the invention, the mixer includes a housing and a hollow shaft with blades mounted on it, made in the form of tubes with nozzles 2.

Недостатки смесител - недостаточна степень гомогенизации и диспергировани , большие уделтные энергети- .Mixer disadvantages - insufficient degree of homogenization and dispersion, large natural energy.

ческие затраты на перемешивание, так как лопасти трубчатой формы не позвол ют проводить процесс в кавитациониом режиме.The mixing costs are cussed, since the tubular-shaped blades do not allow the process to be carried out in a cavitation mode.

Цель изобретени - увеличение степени гомогенизации и диспергировани путем кавитации и уменьшение удельных энергетических затрат на смешивание и растворение.The purpose of the invention is to increase the degree of homogenization and dispersion by cavitation and to reduce the specific energy consumption for mixing and dissolution.

Это достигаетс тем, что в смесителе , содержащем корпус и вал с лопаст ми , снабженными радиальными каналами , сообщающимис G патрубком подачи одного из компонентов, установлен турбулизатор, выполненный в виде неподвижных радиальных ножей, установленных между лопаст ми, которые имеют в сечении форму трапеции, обращенной большим основанием в сторону вращени This is achieved by the fact that in the mixer, comprising a housing and a shaft with blades equipped with radial channels communicating with the G supply pipe of one of the components, a turbulator is installed, made in the form of fixed radial knives mounted between the blades that have a trapezoid in cross section, facing a large base in the direction of rotation

fta фиг. 1 изображен предлагаемый смеситель, обаий вид; на фиг. 2 дано сечение А-А на фиг.1.fta FIG. 1 shows the proposed mixer, both; in fig. 2 shows the section A-A in FIG.

Claims

The solvent mixer comprises a housing 1 with an inlet 2 and an outlet 3 with nozzles. In the case on the shaft 4 are fixed blades 5 and 6 with sharp edges, between which there is a turbulator, made in the form of stationary radial knives 7, attached to the bearing hub B and case 1. In the body of one or several knives radial channels 9 are made, telling fitting 10 for supplying one of the components through the axial channel 11 of the shaft 4 with the channels 12, which are made in the blade x 5 and have 1 to 1, the outlet holes are 13-trapezoidal in shape. The blades 5 and b have in cross section the shape of a trapezoid facing the large base in the direction of rotation. Channels 12 have access to a smaller base of the trapezoid. The length of the trapezoidal outlet 13 is 1/2 the length of the blade and its larger base is located at the edge of the blade at a distance of 1/5 of its length. The knives of the turbulizer have a lenticular shape in cross section (see Fig.2). Mixing solvent works as follows. The flow of mixed mass through the inlet 2 enters the box, pus 1 and moves at a speed of 1–2 m / sec. When rotating the blades a 5 and 6 behind nn1, cavitational cavities are formed over the entire cross section of the housing. Makeable; or the dissolved substance comes at the expense of low pressure c. caverns through fittings 10 through channels 9 of knives 7, channel 11 of shaft 4 and channels 12 of blades 5 into the tail part of cavities. When the caverns are closed, micro bubbles form. When the micropops are collapsing the image-cosiness, cumulative micro jets with speeds of about 1000 m / s and local shock pressures of the order of 10,000 atm, which have a grinding, mixing, dissolving microkinetic effect on the treated substances. , g. When the rotating blades and the fixed turbulizer are exposed to the substances being processed, macrokinetic turbulent mixing of the mixture occurs. Then, a homogeneous mass enters the outlet nozzle 3 approximately at a speed of 1-2 m / s, which meets the requirements of further transporting the mass with small hydraulic losses. The advanced mode of advanced cavitation allows to reduce the specific energy consumption for mixing while maintaining a high degree of homogenization and dispersion. Claims: A solvent mixer comprising a housing and a shaft with blades attached thereto, provided with radial channels communicating with a nozzle for supplying one of the components, about the tubes and chambers so that, in order to Increase the degree of homogenization and dispersion by cavitation and reduce the specific energy consumption for mixing and dissolving, it is equipped with a turbulizer / made in the form of fixed radial knives installed between the blades, and the blades have a trapezoid shape in cross section, the pain is reversed shim base in the direction of rotation. Make it clear; and information taken into account in the examination: 1. The patent of Sweden 356541, cl. O 21 C 9/10, 05/28/73.

2. Authors certificate of the USSR 227891, cl. At 28 C 5/06, 06.12.62.