SU1007715A1 - Loose materials mixer - Google Patents

Description

The invention is intended to simulate bulk materials, especially toxic and fire-hazardous, for which sealing and automation of loading and unloading processes are required, and can be used both autonomously and in automatic lines and other systems .. with remote control and find application in the chemical industry, nonferrous and ferrous metallurgy, and other branches of the national economy. A drum mixer is known, comprising a drum resting on pins, one of which is associated with a rotating drive. In the drum there are two hatches with removable lids for loading and unloading material l 1 The disadvantages of the known mixer are the lack of mechanization of the loading and unloading processes, the difficulty of sealing the loading and unloading processes, especially necessary when working with toxic, explosive and flammable materials, and it is also impossible to integrate the mixer into automatic lines and systems where the apparatuses are controlled remotely. Also known is a drum mixer, divided by a partition with an opening, containing a rotating drum, on the side walls of which there are hollow trunnions with loading and unloading transporting devices placed 8 of them. The disadvantage of this mixer is the impossibility of unloading material from the drum, since the partition in the drum is installed parallel to its axis of rotation. When the drum rotates, there are no forces, such as gravitational, that move the material along the partition along the axis of rotation to the discharge opening. As a result, the material does not get into the hermetic channel that connects the smaller chamber to the hollow journal where the unloading device is located. The aim of the invention is to improve the conditions for unloading bulk material from the mixer. The goal is achieved by the fact that in a mixer containing a rotating drum divided by a partition with an opening, on the side walls of which there are hollow trunnions with loading and unloading conveying devices placed in them, the partition is set obliquely to the axis of rotation of the drum, while the opening in the partition is placed near the side the walls of the drum opposite the unloading device. The opening in the partition is made in the form of a rectangular cutout. FIG. 1 shows schematically a mixer, a longitudinal section, in the material loading position; in fig. 2 section AA one; in fig. 3 section BB in FIG. one; in fig. mixer, longitudinal section, in the unloading position. The main element of the mixer is a drum 1, made in the form of a cylindrical container, rotating around an axis close to its diagonal. However, in other versions, the shape of the drum may be different: spherical, biconical, etc. In order to install drum 1 in supports 2 and 3, hollow pins 4 and 5 are used. In hollow trunnion 1 a transporting device is placed - a charging auger 6 with an individual drive 7. In the hollow journal 5 another transporting device is fixed - a spiral-shaped edge 8, with which the discharged material transported along the trunnion 5 when the drum 1 is rotated by a drive 9 inside the drum 1. at an angle to its axis of rotation, increasing the angle of repose of the material being mixed, a partition 10 is installed that separates the drum into two chambers 11 and 12. Chambers and 1.1 connects to the hollow pin 5 with a smooth adapter that prevents the formation of pockets when the material is unloaded. In the partition 10, on the side opposite to the discharge point 5, there is a hole 13 connecting the chambers 11 and 12 and formed by the edge of the partition 10 and the surface of the drum 1. The best from the point of view of the material discharge intensity is the shape of the hole in the form part of the partition 10 on the side opposite to the direction of rotation of the drum 1 when loading the mixer. The mixer works as follows. The actuator 7 is turned on and the material to be mixed is fed by an ohm auger screw 6 through the hollow pin k into the mixing chamber 12 of the drum 1. Then, the actuator 9 rotates the drum 1 in the direction indicated in FIG. 3 producing material mixing. The chamber 11 is in its lower position, when the chamber 11 is moved to the upper position, it is poured out of it again into the mixing chamber 1. After the mixing process is completed, the actuator 9 is switched to reverse rotation (reverse). At the same time on the wall of the drum 1 through the window in the partition. 10, the material enters the chamber 11 and when it passes to the upper position, shown in FIG. f, showered along the surface of the partition 10 into a hollow trunnion 5. With further rotation of the drum, the material rolls along a helical stream formed by the rib 8, moving along the trunnion 5, and is unloaded from the mixer. Thus, at each turn of the drum, ocSA A noSepffUmo 10 is unloaded from it.

use of bulk materials, the use of the mixer improves sanitary working conditions by preventing the ingestion of toxic substances into the atmosphere. 5 rare dose of material. After the drum is completely unloaded, the drive 9 is turned off. The proposed mixer allows the loading, mixing and unloading of bulk material without the use of manual labor and depressurization of the system, which includes a mixer. This allows you to automate production, to mix, for example, in an inert gas environment, which eliminates the ignition of fire and explosive powders and increases the safety of processes; as well as the mixing of powders subjected to intense oxidation on the air, which is undesirable in production technology. When mixing toxic

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Claims (2)

1. MIXER OF BULK MATERIALS, · containing a rotating drum separated by a partition with a hole, on the side walls of which hollow pins are mounted with transporting loading and unloading devices in them, characterized in that, in order to improve the conditions for unloading the material, the partition is installed obliquely to the axis of rotation of the drum, while the hole in the partition is located at the side wall of the drum, opposite the discharge device. 2. The mixer according to claim ^, characterized in that the hole in the partition is made in the form of a rectangular cut-out.