RU2338584C1 - Facility for bulk material blending - Google Patents

Abstract

FIELD: processes.

SUBSTANCE: facility contains chamber divided by cap for two tanks - top and bottom. Under bottom tank it is mounted membrane inhaler, interlocked to vibration generator. Cap by means of beam rotation changes passing section. Installation of membrane inhaler under bottom tank provides implementation of blending process without considerable power inputs. From one side of tank it is implemented discharge nozzle with gate, what provides material batching.

EFFECT: decreasing of power inputs and batching ability.

4 cl, 3 dwg

Description

The invention relates to the field of mixing materials and can be used, for example, in the feed industry.

A device for mixing bulk materials containing a container, an air blower and a vibration exciter (A.S. USSR No. 442835, A, 09/15/74) is known. The disadvantages of this device are the high energy intensity and high dynamic loads caused by the need to force the entire system to oscillate with high frequency. In addition, it is impossible to dispense mixed material.

The closest in technical essence is a device for mixing bulk materials containing a container, outlet pipe, a membrane air blower kinematically associated with a vibration exciter (RF Patent No. 213142, class B01F 31/18, 11/00).

The disadvantage of this device is that it is impossible to dose the mixed material.

The purpose of this technical solution is to reduce the energy intensity of the device by reducing part of the material being mixed and expanding its functionality by dosing during the mixing process.

The technical essence of the present invention is achieved in that a device for mixing bulk materials containing a chamber, an outlet pipe, a membrane air blower kinematically connected to a vibration exciter, further comprises a damper that is installed in the chamber and divides it into upper and lower containers, while the membrane air blower is fixed under the lower tank. On the periphery of the outer surface of the lower tank mounted supporting surface. The damper is made beyond the limits of the dimensions of the tank, fixed to the supporting surface by means of rods with rings mounted on the roller. A gate is installed in the outlet pipe.

Figure 1 shows a diagram of a device;

Figure 2 is a section along aa, with the valve open;

Figure 3 is a section along aa, with the shutter closed.

The device consists of a frame 1, a chamber 2, divided by a shutter 3 into an upper tank 4 and a lower tank 5. Under the lower tank 5, a membrane air blower 6 is mounted kinematically connected to a vibration exciter 7 having a drive 8. An outlet pipe 9 with a gate 10 is installed on the side of the tank 5 and the upper container 4 is closed by a cover 11. In the shutter 3 a window 12 is made with the possibility of changing its size. The kinematic connection of the membrane blower 6 with the vibration exciter 7 is made by means of a connecting rod 13 with a regulator 14. The damper 3 is made beyond the dimensions of the tank 4 and 5 and is mounted on the supporting surface 15, rigidly fixed around the periphery of the outer surface of the tank 5 by means of rods 16, rings 17 and rollers eighteen.

The device operates as follows. The material to be mixed is poured into the chamber 2. After turning on the actuator 8, the eccentric vibration exciter 7 transmits vertical vibrations to the membrane air blower 6 through a kinematic connection. When the membrane air blower 6 moves downward, the central part moves more than the edges. Since the loose bulk material (due to the cohesion of particles) does not keep pace with the movement of the membrane air blower 6, the air from the material fills the central space above the membrane air blower 6. When the membrane air blower 6 moves up, the air also moves upward, penetrating the material layer and causing active movement of the layers material i.e. mixing process in progress. Thus, during oscillations of the membrane air blower 6, an alternating air flow is introduced into the formed fluidized mass, which enhances the circulation of particles, thereby improving the quality of mixing of poor-flowing material. The alternating air flow keeps small particles of mass inside the layer, preventing them from moving beyond its boundaries, which contributes to an even distribution of small particles throughout the volume of containers 4 and 5. The latter also improves the quality of mixing and eliminates the use of complex cyclones for air purification.

The direction of movement of the air of alternating flow and its intensity largely depends on the angle of the generatrix of the membrane, so it can be changed using the connecting rod 13 and the regulator 14.

After mixing the material, the shutter 3 is closed by turning the rods 16, rigidly connected by one side to the ring 17 and sliding on the rollers 18, and the other side of the shutter blade petals. Then the gate 10 is opened for the desired dosage. In this case, the movement of the material occurs only in the tank 5, which significantly reduces energy consumption compared to if there were no shutter 3 and would have to vibrate the entire layer of material during dosing.

Thus, this mixer allows you to perform two functions: mixing and dosing with minimal energy consumption.

Claims (4)

1. A device for mixing bulk materials containing a frame, a chamber, an outlet pipe, a membrane air blower kinematically connected with a vibration exciter, characterized in that it further comprises a damper that is installed in the chamber and divides it into upper and lower containers, while the membrane the air blower is fixed under the lower tank. 2. The device according to claim 1, characterized in that a supporting surface is installed on the periphery of the outer surface of the lower container. 3. The device according to claim 1, characterized in that the shutter is fixed to the supporting surface by means of rods with rings mounted on the roller. 4. The device according to claim 1, characterized in that a gate is installed in the outlet pipe.

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