RU2147921C1 - Mixer - Google Patents

Abstract

FIELD: agriculture, production of building materials, mineral fertilizers. SUBSTANCE: given mixer has metering tanks, hopper with bladed drum, drive, mixing chamber located under hopper, coupled to drive and mounted for swinging motion about its horizontal axis. L-shaped ribs are made inside mixing chamber. EFFECT: simplified design, high productivity and improved quality of mixing. 4 dwg

Description

 The invention is intended for use in agricultural production, the production of building materials, mineral fertilizers and in other fields.

 Known mixer bulk materials containing a chain conveyor, a system of rollers, tape and drive [1]. Mixing is carried out on a tape, making a movement like "traveling wave". To intensify the mixing processes, a chain conveyor, whose rollers interact with the tape, makes an initial movement relative to the axis of the drive sprockets. The disadvantages of this mixer include a complex design, and the wave-like movement of the tape leads to its rapid wear. The oscillating movement of the chain conveyor relative to the axis of the drive sprockets has a weak effect on increasing the mixing efficiency, since due to the large mass of the conveyor it is impossible to obtain the large frequency and amplitude of oscillations necessary for this. Low mixing efficiency.

 Known bitwise screw mixer continuous operation, taken as a prototype [2]. The mixer comprises a housing, a helical shaft, a blade drum and a drive. The mixing of materials is carried out by rotating in one direction of the helical shaft and the blade drum. Rotating at different speeds from individual drives, they ensure the movement of materials from the loading hopper to the discharge opening with a partial return of the mixture back - to increase longitudinal mixing and uniformity of the mixture. A vane drum rotating at a faster speed than a helical one throws the mixed mass onto the helical shaft. The disadvantages of this mixer should include the complexity of its device. To obtain a mixture of good quality, you need a long time in the working area, for which the mixture must be passed through the device several times. The mixing process of bulk materials is especially long, differing in mass ratios of tens of times.

 The purpose of the invention is the creation of a mixer having high performance and mixing quality.

 This goal is achieved by the fact that in the mixer of bulk materials containing dispensers, a hopper with a paddle drum and a drum drive, a mixing chamber is pivotally mounted under the hopper with the possibility of rocking movement around its horizontal axis, connected with the drive, and longitudinal L-shaped are made inside the mixing chamber ribs.

 A pivotally mounted mixing chamber with the possibility of rocking movement around its horizontal axis leads to the fact that the flow of mixed materials periodically hits the walls of the chamber. In this case, the final mixing takes place, the quality of which is enhanced by the presence of longitudinal L-shaped ribs on the chamber walls.

 This shape of the ribs increases the mixing efficiency when the ribs enter the layer of mixed materials.

 In FIG. 1 shows a mixer, front view.

 In FIG. 2 shows a section along aa of FIG. 1.

 In FIG. 3, 4, the mixing process is shown with the rocking motion of the mixing chamber.

 The device of the mixer.

 The mixer contains a hopper 1 mounted on the base, inside of which a blade drum 2 is mounted, connected to the drive of the drum 3. An inclined plate 4 is installed at the outlet of the hopper. At the bottom of the hopper, a mixing chamber 5 is connected pivotally connected to the drive 6 by a crank mechanism 7. Inside the mixing chamber there are longitudinal L-shaped ribs 8. The drive of the chamber 6 is mounted on a fixed base. At the top of the mixer there are dispensers of bulk materials 9 and 10.

 Mixer operation.

 From the dispensers 9 and 10, the mixed materials enter the hopper 1 and then onto the blade drum 2. The peripheral speed of the rotor blades is directed across the flows supplied by the dispensers of the mixed materials. In this case, preliminary mixing occurs.

 The rotor blades mixed materials are thrown down, hit the inclined plate 4 and sent to the right side of the mixing chamber. In this case, the vertical speed of the mixture slows down.

 Further, depending on the direction of the mixing chamber, the mixture is pressed by force of inertia either to the left or to the right walls of the chamber, see FIG. 3 and FIG. 4. Upon impact on the walls of the chamber, the final mixing takes place, the quality of which is significantly increased by the presence of longitudinal L-shaped ribs on the walls of the mixing chamber and a decrease in the vertical velocity of the mixture, due to the presence of an inclined plate 4 and rocking of the chamber. The mixer with a simple design has high performance and mixing quality.

Sources of information
1. A.S. 1491733 A1, B 28 C 5/34.

 2. Kunta G.M. The technology of processing and preparation of feed. M .: Kolos, 260, 1978.

Claims (1)

 A bulk material mixer containing dispensers, a hopper with a paddle drum and a drum drive, characterized in that a mixing chamber is pivotally mounted under the hopper with the possibility of rocking movement around its horizontal axis, connected with the drive, and longitudinal L-shaped ribs are made inside the mixing chamber.

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