RU2463103C1 - 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. Mixer comprises housing, loading and discharging devices, driven shaft arranged in said housing and spreader attached to said shaft. Said shaft supports cylindrical attachment with annular chamber communicated with component feed device and inner cylindrical chamber aligned therewith to communicate with device feeding another mix component. Every said chamber is provided with spraying branch pipes arranged in horizontal rows. Aforesaid spreader is made up of curved plates arranged radially along housing edges.

EFFECT: good mixing at low power consumption, decreased sizes.

3 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 housing, and on the surface of one of them equipped with a rotary drive, there are radial elastic elements, and a material supply device is located between the drums and the housing [RF patent No. 2242272, BI No. 35, 12.20.2004, 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 loading and unloading devices, a housing located in the housing of the 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, BI 33, 11.27.2007, IPC B01F 3/18].

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.

The problem is achieved in that in the unit for mixing bulk materials containing a housing, a loading and unloading device, a shaft with a rotary drive and a chipper located in the housing, a cylindrical nozzle is installed on the shaft having an annular chamber associated with the loading device of one of the components and coaxially located inner cylindrical chamber associated with the loading device of another component, each of the chambers is equipped with spray nozzles located horizontally dams, and the chipper is a plate of a curved shape radially located around the perimeter of the body.

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

Figure 2 presents a section aa.

Figure 3 shows a view B, which shows the curved shape of the plate fender.

The aggregate for mixing bulk materials, contains a housing 1, a loading device 2 and an unloading 3. Inside the housing 1 there is a shaft 4 provided with a rotary drive 5. A cylindrical nozzle 6 is installed on the shaft 4, having an annular 7 and an inner cylindrical chamber 8. In the side spray nozzles 9 and 10 are made of the cylindrical nozzle 5. A bump 11, made in the form of curvilinear plates, is attached to the inner wall of the housing 1.

The unit operates as follows.

The bulk components to be mixed come from the loading devices 2 into the annular 7 and cylindrical 8 chambers of the cylindrical nozzle 6. Under the action of centrifugal forces, the particles of material are pressed against the walls of the chambers 7 and 8, enter the spray nozzles 9 and 10 and are sprayed. In this case, one component exits through the spray nozzles 9, and the other through the nozzles 10. In order to reduce the size of the apparatus and improve the quality of the mixture, a bump 11 is installed on the inner wall of the housing 1. During the impact interaction of particles with the bump, the formation of reflected flows. The curvilinear shape of the fender plates provides the imposition of reflected flows and mixing of materials. Due to the fact that the chipper is made in the form of several plates located around the perimeter of the body, the formation and superposition of several reflected flows occurs, which also positively affects the uniformity of the mixture. The finished mixture is unloaded through the unloading device 3.

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, comprising a housing, loading and unloading devices, a shaft with a rotary drive and a chipper located in the housing, characterized in that a cylindrical nozzle is installed on the shaft having an annular chamber connected to the loading device of one of the components and coaxially located an inner cylindrical chamber associated with the loading device of another component, each of the chambers is equipped with spray nozzles arranged in horizontal rows, and the chipper It is a plate of a curvilinear shape radially located around the perimeter of the casing.

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