JPH06198156A - Atomizing and laminating mixer - Google Patents

Abstract

PURPOSE:To uniformly mix plural kinds of materials having different grain diameter, grain shape, sp.gr., state, etc. CONSTITUTION:The material is atomized at an appropriate speed by a device consisting of 1, 2, 3, 4 and 7 or 8, 9, 10, 11 and 18 for each of the materials 3 and 9 and sprinkled by natural settling. The sprinklers are appropriately arranged to laminate the respective materials, the mixing ratio is controlled by the thicknesses of the layers 7 and 13 and the number of repetitions, and the mixture is recovered by devices 14, 15 and 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is used, for example, in mixing some kinds of different materials such as wheat flour, salt water, and wakame powder when producing some noodles. Further, in the case of a sintered ceramic, it is used when uniformly mixing the raw materials such as silicon dioxide and iron dioxide.

[0002]

2. Description of the Related Art Powder mixers are used in industries handling powder such as chemical plants. One of the typical mixers is a rotary mixer. This is widely used because the container itself rotates and its structure is relatively simple. The rotary mixer consists of a rotary container, several kinds of powder, an inlet,
The powder rises along the inner wall with the rotation of the container, which is composed of a take-out port and the like. The powder reaching the top of the container is mixed while flowing down along the inclined surface. At this time, there is a drawback that the material is not uniformly mixed because the degree of flow-down is different due to the difference in particle shape, particle diameter and specific gravity of the powder. Also, during the mixing process, the particles contact each other and also the container. Static electricity with different signs is generated by contact with the same kind of object and contact with different kinds of objects. The amount of static electricity generated is proportional to the contact frequency of particles. When static electricity is accumulated, quasi-assembly occurs between particles. The pseudo-collected particles form a block, and since the particles have a large adhesive force, the particles are not dispersed even in the mixing process. Therefore, when viewed microscopically, the powder concentration becomes non-uniform and the mixing characteristics deteriorate. This tendency is remarkable when the particle size of the powder is small. This is because the surface area of the particles per unit packed layer increases in inverse proportion to the particle diameter, so that the amount of static electricity increases and the particles are aggregated remarkably.
Next is the rotary vane mixer. This is a container, a rotor,
It is composed of several powder or liquid inlets and outlets, etc., and several materials in the container are agitated and mixed by the rotation of the rotary blades. At that time, there is a drawback that the flow around the blade becomes non-uniform due to the imbalance of the pseudo-aggregation force of the material and the difference in the size, shape, specific gravity, etc. of the material, and the material is not uniformly mixed.

[0003]

As described above, the conventional method has a drawback that materials having different properties such as particle diameter, specific gravity, liquid and solid cannot be uniformly mixed at a required mixing ratio. It was The present invention was devised to solve the above problems, and an object thereof is to provide a method for uniformly mixing materials having different properties.

[0004]

In order to achieve the above-mentioned object, the present invention is a method in which the materials to be mixed are alternately and thinly dispersed according to the materials so that they are laminated in layers and the materials are dispersed per unit time. This is a mixing device for sequentially and continuously mixing while adjusting the mixing ratio by adjusting the amount or the repetition frequency of layers.

[0005]

When the present invention is explained with two kinds of materials, it works as follows. First, the first material is atomized and sprayed using an ultrasonic vibrator or the like so that Bg / min per unit time is uniformly dispersed in an area of A cm ² . At this time, almost (B / A)
It is considered that the material A was dispersed and dispersed in g / min cm ² . Next, the area Acm is placed on the first material sprinkled with the second material.
Evenly spread Cg / min per unit time in the area of ² .
When this is repeatedly repeated many times with the first material and the second material, the first material and the second material are laminated in layers. At this time, if B / A and C / A are adjusted to be extremely small and sprayed, the layer thickness of each material becomes very thin. Therefore, when viewed macroscopically in the thickness direction of the laminated materials, And the second material can be considered mixed with B: C in a weight ratio. When there are many types of materials, they can be mixed by increasing the number of layers for each material.

[0006]

EXAMPLES The present invention will be described in detail below with reference to the drawings, in which salt water and wheat flour are mixed in the process of producing some noodles. First
An embodiment of the present invention is shown in the drawings. 1 is an ultrasonic transducer, 2 is a salt water container, 3 is salt water, 4 is a hood, 5 is a conveyor, 6 is atomized salt water, 7 is salt water sprayed on the conveyor, 8
Is an ultrasonic transducer for flour, 9 is flour, 10 is a flour container, 11 is a hood, 12 is wheat flour, 13 is wheat flour sprinkled on a conveyor sprinkled with salt water, 14
Is a plate for stripping salt water and wheat flour on the conveyor, 15 is a distributing device, 16 is a mixture container, and 17 and 18 are receiving ports for collecting a portion having a large difference in density of the sprayed material.
In this arrangement, the salt water 1 is adjusted into the mist by adjusting the output and frequency of the ultrasonic transducer, and the hood 4 having the opening area A is sprayed.
To guide it onto the conveyor and spread B / A per unit time per unit area. Wheat flour is guided to a position separated by an appropriate distance on the same conveyor sprinkled with salt water by a hood 11 having an opening area A in the same manner at a unit time and C / A per unit area using an ultrasonic vibrator or the like. Disperse. In this way, flour is sprinkled on a thin layer of salt water to form two layers. By collecting this, a mixture of wheat flour and salt water having a mixing ratio B: C is obtained. Further, the same effect can be obtained by disposing the hoods 4 and 11 on the circumference using a disc instead of the conveyor. In addition, many kinds of materials can be mixed by increasing the number of spraying devices according to the kinds of materials to be mixed. Further, when adjusting the mixing ratio, it is also possible to adjust by adjusting the spraying amount per unit time and unit area and by increasing the set number of spraying devices of the same material. For example,
When the number of wheat flour spraying devices used in the above-described embodiment is two, the mixing ratio becomes B: 2C.

[0007]

The present invention has the following effects.
Since there is no process of stirring and mixing several kinds of materials and mixing is performed by layering each kind of material, mixing unevenness due to differences in material properties such as specific gravity, particle size, liquid and solid is small. Further, when the liquid is mixed with the granules or the powder, it is possible to reduce the mixing unevenness due to the difference in the pseudo-collecting force of the liquid.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention in which a spray layer amount is arranged on a conveyor for mixing wheat flour and salt water.

FIG. 2 shows another embodiment of the present invention, showing a state where three kinds of materials are laminated in three layers.

[Explanation of symbols]

1. Ultrasonic transducer 2. Salt water container 3. Salt water 4. Hood 5. Conveyor 6. Misted salt water 7. Salt water sprinkled on the conveyor 8. Ultrasonic transducer for flour 9. Flour 10. Flour container 11. Hood 12. Misted flour 13. Flour sprinkled on a conveyor sprinkled with salt water 14. Plate for stripping salt water and flour on the conveyor 15. Sorting device 16. Mixture container 17.18. Receiving port for recovering the part where the atomized density is uneven near the side wall of the container of the sprayed material 19. Material 1 20. Material 2 21. Material 3

Claims (1)

[Claims] 1. A liquid, a granule, or a powdery material is alternately sprayed on a conveyor or a rotating disk using an atomizing device, and different kinds of materials are alternately laminated to form a layer thickness, or Material mixing device that adjusts the mixing ratio by adjusting the layer repetition frequency for each material