SU718147A1 - Continuous-action agitator - Google Patents

Description

one

The invention relates to the technology of formation of mixtures and can be used in the building materials industry, chemical, formative-treatment, food and other fields to obtain homogeneous mixtures of various materials: powdery, granular, semi-liquid, paste-like, etc., the proposed mixer particularly suitable for mixing substances that do not allow mechanical abrasion (seeds, explosive mixtures, granulated substances, etc.).

Continuous mixers are known, comprising a vibration housing within which displacement members are freely installed.

The mentioned mixers have insufficient mixing efficiency and a number of other drawbacks, namely, jamming and grinding particles of the material between the mixing blades and the casing, the inconvenience of cleaning and repair, and the development of significant noise.

A continuous mixer is known in which the disadvantages mentioned are substantially reduced. This mixer contains a horizontal drive drum, a flexible housing suspended from the drum, and a shaft placed in the housing with displacement vanes 2.

The disadvantages of this mixer are, firstly, the incompletely exhausted possibilities of reducing the wear of the main assemblies - the casing and the hollow shaft, due to the non-displacement of the casing and the blade mixing shaft relative to each other; secondly, the incompletely exhausted power saving possibilities due to

drive paddle smeshnvayuschy shaft.

The aim of the invention is to increase the durability of the mixer and the mixing of the mixing due to the additional vibration effect.

The goal is achieved by the fact that in a continuous mixer containing horizontal horizontal drum, a flexible housing suspended on a drum and a shaft with mixing blades placed in the housing, the shaft is hollow and equipped with a vibrator mounted inside it, and the shaft with mixing blades is free in the case. FIG. 1 shows the proposed mixer, a general view; on fng. 2 is a section A-A in FIG. one.

Claims (2)

Horizontal drum 1 is installed on the D-shaped supports 2 frames of the mixer and is equipped with a drive 3. On the driven drum I a closed flexible case 4, made of, for example, of rubber-woven material, is freely suspended. In the lower part of the housing 4, inside it is freely located an idle paddle mixing shaft 5. In the cavity of this shaft, a vibration exciter 6 is installed, for example, in the form of a deep vibrator having an electric drive 7 connected to the vibration exciter by means of a flexible shaft 8. The mixer can it should also be provided with a funnel 9 for feeding the material being biased and pipes for feeding the liquid components of the mixture into the mixer (the pipes are not shown conventionally in the drawing). On the outlet side of the mixture, a guide tray 10 can be installed. In addition to the listed components, the mixer can have a lattice or solid barrier, the latter can be connected to an aspiration system. Works mixer as follows. Continuously (or in small doses) the metered components of the mixture are fed into the feed hopper 9 and get inside the flexible body 4, into the area of the blade displacement shaft 5. The flexible body 4, driven by the driving drum 1, imparts rotation to the blade shaft 5 vibrating under the influence of the exciter 6 vibrations. Liquid (semi-liquid) components of the mixture can be fed into the mixer through perforated or conventional pipes. The components of the mixture that are injected into the rotating casing are subjected to the action of a paddle mixing shaft, the blades of which vibrate and, rotating with the speed of movement of the casing, promote the displacement of the mixture along the mixer. However, under the action of the blades of the bias shaft 5 and the moving flexible body 4, the mixture is repeatedly and randomly thrown up to a height due to the speed of rotation of the shaft-body system and, freely falling down, again interacts with the vibrating blades of the mixing shaft. In this way, the components of the mixture undergo effective mechanical mixing in the mixer due to the various factors mentioned. Making the impeller mixing shaft 5 freely rotating and vibrating its blades inside the flexible housing 4 suspended on the drum reduces the power consumption of the mixer. And the joint movement of the bladed shaft and the Flexible body allows to significantly reduce the wear of the main mixer nodes, namely the flexible body and the bladed shaft. The mixing and mixing processes in the proposed mixer can be carried out at any acceptable speed, without fear of centrifugally pressing the mixture against the walls of the flexible body, and the mixing is carried out without mechanical abrasion or adhesion of the mixture inside the mixer. Claim 1, A continuous mixer comprising a horizontal drive drum, a flexible housing suspended on a drum and a shaft with stirring blades housed in the housing, characterized in that, in order to intensify the displacement process due to the additional vibration effect, the shaft is hollow and it is supplied with the vibrator installed inside it. 2. A mixer according to claim 1, characterized in that the shaft with the displacement blades is freely mounted in the housing. Information sources. taken into account during the examination 1. USSR author's certificate No. 122694, cl. On 01J 11/00, 1958. 2. USSR author's certificate number 599982, cl. At 01F 9/08, 10/28/71, -ff II IputJ Rig.2