RU2449829C2 - Loose material mixer - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: invention relates to mixers of loose materials and may be used in chemical industry, agriculture, production of construction materials, etc. Proposed mixer comprises dispensers coupled with loading device dispensers, unloading device, stationary housing accommodating tapered baffle and drive hollow shaft accommodating device to load of one component and spraying channels. Taper adapter with ribbed outer surface is secured to hollow shaft lower part. Curved vanes are arranged on said baffle. Tapered chamber is arranged inside said hollow shaft to house second component loader communicated with dispenser of second component and spraying channels. Spraying channels communicated with shaft cavity and tapered chamber are located ion one plane to alternate along circumference.

EFFECT: improved design, higher quality of mixing.

5 dwg

Description

The present invention is intended for use in the chemical industry, agriculture, the production of building materials and other industries.

A known unit for mixing bulk materials containing dispensers, a mixing device consisting of a housing with a material discharge pipe located inside the shaft housing with blades mounted on it having windows, and a fencing element is attached to the blades in the upper part. Two drums with parallel axes are placed above the casing and there are radial elastic elements on the surface of one of them, equipped with a rotary drive, and a material supply device is located between the drums and the casing [RF patent No. 2242272, BI No. 35, December 20, 2004, IPC 7 B01F 3/18].

The disadvantages of this device include the complexity of the design and the low quality of mixing.

Closest to the proposed invention is an aggregate for mixing and compaction of bulk materials containing dispensers, an unloading device, a housing located in the housing, a drive hollow shaft, spray devices attached to the shaft and a conical breaker element, and a sealing chamber is located in the lower part of the housing [RF patent No. 2311222, IPC B01F 3/18, BI 33].

The disadvantages of this device include the complexity of the design and the low quality of mixing.

The objective of the invention is the creation of an aggregate for mixing bulk materials of a relatively simple design having high quality mixing.

This object is achieved by the fact that in the unit for mixing bulk materials containing dispensers associated with the dispensers of the loading device, the unloading device, a stationary housing, a conical baffle element located in the housing and a drive hollow shaft, in the inner cavity of which there is a loading device of one of the components and spray channels, a conical nozzle is attached to the bottom of the hollow shaft, with ribs on the outer surface, curved-shaped blades are placed on the baffle element, and inside the floor of the shaft, a conical chamber is coaxially mounted, in the internal volume of which there is a device for loading the second component, which communicates with the dispenser of the other component and the spray channels, moreover, the spray channels connected to the internal cavity of the shaft and the conical chamber are located in one plane and alternate in the circumferential direction.

Figure 1 shows a diagram of an aggregate for mixing bulk materials.

Figure 2 presents a section aa.

Figure 3 shows a section bB.

Figure 4 shows a section bb.

Figure 5 presents the cross section GG.

The unit for mixing bulk materials contains a stationary housing 1, dispensers 2, a conical baffle element 3 and a drive hollow shaft 4 located in the housing. Inside the hollow shaft there is a loading device for one of the components 5 and a conical chamber 6 with a loading device for the second component 7. Loading devices 5 and 7 are connected to the spray channels 8. A conical nozzle 9 is attached to the lower part of the hollow shaft 4, with ribs 10 on the outer surface. In order to increase the mixing efficiency, curved-shaped blades 11 are placed on the conical breaker element 3. Unloading device 12 is made in the lower part of the stationary body.

The unit operates as follows.

Bulk components to be mixed pass from dispensers 2 through loading devices 5 and 7 to the spray channels 8. When the hollow shaft 4 rotates under the action of centrifugal forces, particles of the mixed components fly out of the spray channels 8. In this case, rarefied flows are located in one plane. In the process of particle movement, mutual overlap and penetration of neighboring flows occurs, which leads to equalization of the concentration of the mixed components and the formation of a dispersed conical flow with a uniform distribution of particles over the cross section.

The generated flow hits the bump element 3, on which the blades of a curved shape 11 are placed, and is reflected. The reflected rarefied stream then flows onto a rotating conical nozzle 9, attached to the lower part of the hollow shaft 4. Next, the mixture of bulk materials moves along the conical nozzle 9 with ribs 10, is sprayed and secondary impact of particles with a conical breaker element 3. Curved blades 11 have such a curvature and a step of placement along the perimeter of the baffle element to provide optimal impact flow interactions, ensuring high quality mixing. The finished mixture is discharged through the discharge device 12.

The proposed unit for mixing bulk materials allows for low energy consumption and relatively small dimensions to ensure good mixing of bulk media.

Claims (1)

A unit for mixing bulk materials containing dispensers associated with the dispensers of the loading device, an unloading device, a fixed housing located in the housing of a tapered baffle element and a drive hollow shaft, in the internal cavity of which there is a loading device of one of the components and spray channels, characterized in that a conical nozzle with ribs on the outer surface is attached to the bottom of the hollow shaft, curvilinear blades are placed on the baffle element, and coaxially at the inside of the hollow shaft tanovlena conical chamber, the internal volume of which is disposed a second component loading apparatus, which communicates with the dispenser of the other component, and spray channels, the spray channels connected with the inner cavity and the conical cam shaft, arranged in one plane and alternate in the circumferential direction.

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