SU986479A1 - Autoclave - Google Patents

Description

(54) AUTOCLAVE

Claims (3)

The invention relates to apparatus | with mixing devices operating under pressure, and can be used in the chemical industry PibBecTHbi autoclaves, containing the corpus and the mixing device in the propeller mixer, combined with directional shafts of various heights. When mixing heterogeneous systems, the agitators in such apparatuses rotate at a frequency of 15-ZO rev / s l. In autoclaves operating at high pressure and temperature parameters, it is difficult to ensure the indicated rotational speed and reliable sealing of the shaft, complex multi-sided seals are necessary. In high vehicles, the long shafts of the entrapment apparatus: Signals undergo significant fluctuations, which leads to fast bearing wear. The closest to the proposed autoclave is an autoclave containing a vertical body, inside which is mounted on a vertical shaft, a suction tube mounted on the tube outside or inside it 2. Such an autoclave does not provide intensive mixing of the medium and its surroundings through the gas phase to the lower filling level of the autoclave. In addition to the aunt, mixing of heterogeneous media is possible with BiiicoKHx hour-bullets rotating the shaft, which under conditions of high pressures of complex seals. The aim of the invention is to ensure that the circulating mixtures are not mixed intensively in a heterogeneous medium in an autoclave, operating under high pressure at relatively low rotational frequencies: the shaft by creating an enhanced positive effect and intensifying the technological process. The set is supplied by the fact that the autoclave, comprising a housing with a lid and a bottom, an axle mounted on the gearbox 7SL with a saiqpenneHHofi on it, equipped with a tube and impeller, and heat exchanging elements and fittings of the inlet and outlet of the cochlear, is fitted with a cylinder, fitted with a coaxial valve and fitted with a coaxially mounted ring. This is the blade, and the paddle swirler located in the upper part of it, with the impeller located on the lower end of the circulation tube opposite the blade tip, FIG. 1 depicts an autoclave, an AFL section; in fig. 2 shows an autoclave mixing device, the first embodiment of FIG. 3 - the same, the second version of the implementation; in fig. 4 is a section A-A in FIG. 3. The autoclave contains a vertical cylindrical body 1 with a removable lid. 2. Vertically along the axis of the housing, in its upper part, a shaft 3 is installed, passing through the yoke 2 and driven in rotation by the gearmotor. Inside the casing there is a tubular heat exchanger 4 and a mixing device, which includes a circulating pipe 5 fixed on the shaft 3, and a bolt 6 placed on the lower end of this pipe. Under the tube 5 and coaxially with it on the bottom of the autoclave, a cylinder 7 is fixed by means of racks, in the upper part of which is placed a bladed spectator 8. According to the first embodiment of the mixing device (Fig. 2), intended to rotate with a minimum frequency of 1OO-ZOO rpm impeller made in the form of a multi-blade propeller, at 9O% of the width of the blades extends beyond the end of the pipe 5. In the second embodiment (Fig. 3 and 4) a mixing device for rotating frequency of the shaft 4OO rpm the impeller is located inside the pipe 5, yshe its lower end. On the shaft, this pipe is attached in both versions with the help of the hub 9 and the clamp in the form of thin ribs 1O. The body 1 of the autoclave is equipped with fittings for input and output of processed components. The autoclave works as follows. The processed substances in the form of a liquid or pulp are loaded into the autoclave to a level that immerses the impeller 6. During rotation of the pipe 5 with the crustaceous fluid under the action of centrifugal and axial forces moves up through this pipe, enters the vapor-gas zone and, mixing, returns to the bottom half -; well autoclave. Further, the liquid through the stationary cylinder 7 and the spectator 8 is sucked into the pipe 5, forming a closed circulation loop passing through the entire volume of the autoclave. Placing the stationary pinch under the circulation tube and fixing the crustacean on the lower end of the tube significantly enhance the absorption effect and ensure intensive mixing of the medium throughout the volume of the autoclave at low frequencies of rotation of the shaft. In addition, with stirring, the circulation pipe does not form, does not use beatings and bending loads, which greatly facilitates the condition of the shaft work and leads to a decrease in power consumption. An invention of an autoclave comprising a vertical cylindrical body with a lid and a bottom, a shaft mounted vertically along the axis of the body in BepxHeiS parts thereof, a circulation pipe fixed to the shaft, an impeller placed inside the pipe, heat exchange elements and fittings of the vacuum pipe and output components it differs from the fact that, in order to intensify the CEC of the process by ensuring complete movement throughout the volume of the housing, it is equipped with a cylinder fixed coaxially under the circulation pipe on the bottom, and with a vane swirler, still in the upper part, and the impeller is located on the lower end of the circulation pipe at the point of the blade vortex. . Sources of information taken into account during the examination 1. Sterbachek 3., Tausk P., Mixing in the chemical industry. L., Goskhimizdat, 1963. 2 Japan Patent No. 43-19851, cl. 13 At 15, published on 08/27/68. nineteen one .