KR101068517B1 - Particle Separation Apparatus of Solid Particles using Fluidized Bed - Google Patents

Abstract

The present invention relates to a particle size sorting apparatus for solid particles using a fluidized bed, and more particularly, a dispersion plate is installed in a sorting chamber to partition a lower introduction chamber and an upper sorting chamber, and the sorting means having a mesh is provided in the sorting chamber. By installing, the solid material filled in the sorting chamber is flowed by the fluidizing gas supplied through the dispersion plate while the solid particles having a particle size smaller than the mesh gap of the sorting means are introduced into the sorting means to be separated. The particle size sorting device has a small phenomenon that the solid particles are caught in the gap of the mesh because the solid particles are sorted horizontally, and since the solid particles are flowed by the fluidizing gas, there is no direct price, thereby minimizing particle damage. The present invention relates to a device that minimizes noise and vibration and enables continuous particle size selection.

In the particle size sorting device of the solid particles of the present invention, in the particle size sorting device while flowing solid particles having different particle sizes into a fluidized gas, a partition plate provided inside is partitioned into an upper sorting chamber and a lower inlet chamber. A sorting chamber for filling solid particles to be sorted; Sorting means installed in the sorting chamber of the sorting chamber to sort according to the particle size; A discharge pipe communicating with the side of the sorting chamber and discharging the solid particles having the large diameter remaining after the sorting; A fluidizing gas pipe for supplying a fluidizing gas to the lower introduction chamber of the sorting chamber; A circulation pipe communicating with an upper end of the sorting chamber, receiving a fluidizing gas in which solid particles are fluidized, and re-supplying the lower introduction chamber of the sorting chamber; And a cyclone installed on the flow path of the circulation pipe to separate the fine particles contained in the fluidized gas.

Solid particles, particle size, screening, separation, fluidization

Description

Particle Separation Apparatus of Solid Particles using Fluidized Bed

The present invention relates to a particle size sorting apparatus for solid particles using a fluidized bed, and more particularly, a dispersion plate is installed in a sorting chamber to partition a lower introduction chamber and an upper sorting chamber, and the sorting means having a mesh is provided in the sorting chamber. By installing, the solid material filled in the sorting chamber is flowed by the fluidizing gas supplied through the dispersion plate while the solid particles having a particle size smaller than the mesh gap of the sorting means are introduced into the sorting means to be separated. The particle size sorting device has a small phenomenon that the solid particles are caught in the gap of the mesh because the solid particles are sorted horizontally, and since the solid particles are flowed by the fluidizing gas, there is no direct price, thereby minimizing particle damage. The present invention relates to a device that minimizes noise and vibration and enables continuous particle size selection.

Particle sorting technology is applied in various fields such as daily life, industrial sites and laboratories. The particle sorting is a group of particles, that is, small grains of a material, that is, a predetermined particle is sorted by various methods, and a device which enables this is called a particle sorting device.

An example of such a particle sorting device is a particle sorting device for separating compost and organic fertilizers. It is used to sort out foreign substances when manufacturing compost using food or various by-products. The removal of foreign substances with the sorting device facilitates the manufacture of compost and contributes to the improvement of the quality of the compost.

Another example is the sorting of construction waste into recycled aggregate and waste. Construction waste needs to be sorted out in order to reduce costs by protecting nature and recycling resources, using particle sorting equipment. Construction waste is crushed using a crusher and then sorted into recycled aggregate and waste using wind or specific gravity.

Another example is the sorting of municipal waste. We are buried in our land a lot of waste from our daily lives, and landfills are becoming limited and environmental pollution is so severe that we have a justification for recycling it. At this time, it is separated using a particle sorting device.

Another example is academic use. In order to improve accuracy and reliability in various experiments, a sorting device is used to sort out samples by size using a roller.

The particle sorting device is generally a flat plate or a horizontal axis type, the type is a cylindrical horizontal axis rotating wire mesh using a method of rotating by rotating the cylindrical wire mesh in the horizontal axis, vibrating screen to increase the efficiency of screening by screen vibration System, and a screw sorting method in which a screw is mounted.

In particular, the vibration screen is most used as a method for separating particles. The vibrating screen is classified according to the size of the through hole of the screen, there is an advantage that can be received particles of the desired size by installing the screen in multiple stages.

However, the vibrating screen has a disadvantage in that the noise is high because the vibration screen is essentially generated in order to separate particles, and particulate matter is caught in the screen by vibration, or the particulate matter is broken. Since the breakage of the particulate material has a disadvantage in that the purity of the received product is reduced in a method of receiving one of two or more kinds of mixtures of different particles, the particles of the desired material can be received by minimizing the breakage of the particles with little noise. Development of particle sorting equipment is needed.

The particle size sorting apparatus of the solid particles of the present invention for solving the above problems,

In the particle size sorting device while flowing solid particles having different particle sizes into a fluidizing gas, the sorting chamber is partitioned into an upper sorting chamber and a lower introducing chamber by a distribution plate installed therein, and the sorting chamber is filled with solid particles to be sorted. Wow; Sorting means installed in the sorting chamber of the sorting chamber to sort according to the particle size; A discharge pipe communicating with the side of the sorting chamber and discharging the solid particles having the large diameter remaining after the sorting; A fluidizing gas pipe for supplying a fluidizing gas to the lower introduction chamber of the sorting chamber; A circulation pipe communicating with an upper end of the sorting chamber, receiving a fluidizing gas in which solid particles are fluidized, and re-supplying the lower introduction chamber of the sorting chamber; And a cyclone installed on the flow path of the circulation pipe to separate the fine particles contained in the fluidized gas.

As described in detail above, the particle size sorting apparatus of the solid particles of the present invention,

Dispersion plate is installed in the sorting chamber to partition the lower introduction chamber and the upper sorting chamber, and the sorting means having a mesh is installed in the sorting chamber, so that the solid material filled in the sorting chamber is supplied to the fluidized gas supplied through the dispersion plate. While flowing by the solid particles having a particle size smaller than the mesh gap of the sorting means is introduced into the sorting means to be separated. The particle size sorting device has a small phenomenon that the solid particles are caught in the gap of the mesh because the solid particles are sorted horizontally, and since the solid particles are flowed by the fluidizing gas, there is no direct price, thereby minimizing particle damage. It is possible to provide a useful device that minimizes noise and vibration and continuously selects the particle size.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings.

The particle size sorting apparatus 10 for solid particles according to the present invention includes a sorting chamber 20 as shown in FIG. 1.

The sorting chamber 20 is a cylindrical body having a hollow portion, and a distribution plate 21 is installed in the lower part of the inside, and is partitioned into an upper sorting chamber 22 and a lower introduction chamber 23. The sorting chamber is a portion in which solid mixtures having different diameters are loaded, and the lower introduction chamber is a portion in which fluidized gas is introduced. Therefore, the inlet pipe 90 is connected to the upper side of the sorting chamber so that the solid particles are introduced from the outside, the fluidization gas pipe 50 is installed in the lower inlet chamber to allow the inflow of the fluidized gas.

The dispersion plate 21 is a plate that supplies while dispersing the fluidized gas flowing into the introduction chamber to the upper part and is made of various shapes and materials such as porous plates or porous ceramics having a plurality of holes having a smaller diameter than solid particles filled in the selection chamber. Can be.

The sorting means 30 is installed in the sorting chamber 22 of the sorting chamber. The sorting means may be formed in a cylindrical body as shown in Figure 2 to be located in the sorting room, or may be provided in the form of sorting through the outer wall of the sorting room as shown in FIG.

The sorting means 30 of FIG. 2 includes a sorting pipe 31 located in a sorting room and having an outer circumferential surface formed of a mesh 311, and a conveying pipe 33 communicating with a lower part of the sorting pipe. It is located below the portion communicating with the discharge pipe to allow the solid particles of a smaller diameter than the mesh. In addition, the sorting tube may adjust the diameter of the sorting object according to the mesh gap size. For example, it is preferable that the gap of the mesh 311 is set between two types of mixed solid particle diameters so that the screening is performed. In addition to the mesh described above, a porous tube or a porous plate having a plurality of through holes may be used.

Next, the sorting means 30 of FIGS. 3A and 3B are sorted through sidewalls of the sorting chamber. The sorting means 30 protrudes out of the sorting chamber 20 and is installed in communication with the sorting section. It is composed of a transfer pipe 34 for transferring the solid particles to the outside. The sorting part 32 has a flow path formed therein, one end of the flow path is in communication with the sorting chamber 22 and the other end is in communication with the lower surface of the protrusion so that the transfer pipe is installed in communication. Here, the sorting unit 32 is equipped with a mesh 321 in a portion communicating with the sorting chamber so that the sorting is made by receiving solid particles smaller than the gap of the mesh among the solid particles flowing in the sorting chamber. In addition, the bottom of the inner flow path of the sorting portion is preferably formed in the inclined surface to the portion in communication with the transfer pipe 34 in order to prevent the solid particles passing through the mesh.

As described above, in the sorting chamber 20 provided with the sorting means 30, the fluidized gas pipe 50 is installed in the introduction chamber 23 so as to receive a high-pressure fluidized gas from the outside. The fluidizing gas may use a variety of gases such as compressed air or oxygen, and when the screening target should not be in contact with the solid particles, the fluidization may be performed using an inert gas such as nitrogen or helium.

An upper part of the sorting chamber 22 of the sorting chamber may collect and discharge a fluidized gas in which solid particles are fluidized, or may be supplied to the introduction chamber of the sorting chamber by installing a circulation tube 60. In order to prevent the microsolid particles from flowing into the circulation pipe 60 and stacking in the introduction chamber or blocking the through holes of the dispersion plate, a cyclone 70 is installed on the flow path to separate and remove the microsolid components. In addition, in addition to the cyclone, a filter 24 may be installed in close proximity to a portion in communication with the circulation pipe 60, which is the upper end of the sorting chamber, to filter the fine particles first, and to provide a circulation supply to the circulation pipe.

In the structure, the small-diameter solid particles separated by the sorting means 30 are collected to the outside through the transfer pipe of the sorting means, and the large-size solid particles remaining in the sorting chamber 22 are stored on the side of the sorting chamber, for example, the filling chamber. It is discharged to the outside through the discharge pipe 40 communicated to the lower portion of the solid particle layer to be collected.

The sorting chamber 20 having the sorting means 30 may be used alone to selectively collect either mixture from two mixtures of different diameters, such as a mixture of a catalyst or an absorbent.

In addition, the sorting chamber may be connected to the plurality of sorting chambers (20a, 20b, 20c) in series so that the sequential sorting of solid particles can be made.

For example, as shown in Fig. 4, the sorting chamber is composed of first to third sorting chambers 20a, 20b, and 20c, and each sorting chamber is equipped with sorting means 30a, 30b, and 30c, each of which is composed of the cylinder of Fig. 2, respectively. It was. At this time, the sorting tube mesh of the sorting means has a small gap gradually from the first sorting chamber to the third sorting chamber, and the solid particles sorted by the sorting means of the first sorting chamber 20a are the second sorting chamber. 20b may be supplied to allow further sorting.

As such, when the plurality of sorting chambers are configured, three or more solid particles having different diameters can be sorted.

That is, the diameter of the solid particles discharged to the discharge pipe 40a of the first sorting chamber 20a is the largest, and then the discharge pipe 40b of the second sorting chamber 20b and the discharge pipe of the third sorting chamber 20c. The larger the diameter of the solid particles discharged to 40c), the solid particles discharged through the sorting means 30c of the third sorting chamber have the smallest diameter.

Briefly explaining the operating state of the particle size selection device of the present invention,

A mixture of two or more solid particles is filled into the sorting chamber 22 of the sorting chamber 20, and the inlet chamber 23 is supplied with a fluidizing gas from the fluidizing gas pipe 50. The high pressure fluidizing gas is dispersed into the sorting chamber through a distribution plate 21 partitioning the sorting chamber and the introduction chamber, and the solid particles stacked in the sorting chamber are fluidized in a fluid-like flow by the fluidizing gas.

At this time, the fluidized gas in which the solid particles are fluidized flows into the circulation tube 60 communicating with the upper end of the sorting chamber, and passes along the flow path of the circulation tube and passes through the cyclone 70 to be included in the fluidized gas. The particle is re-supplied to the introduction chamber 23 of the sorting chamber through the process of removing the particles.

The fluidized solid particles are fluidized in the sorting chamber and come into contact with the meshes 311 and 321 of the sorting tube, which is the sorting means 30, where the diameter of the solid particles is smaller than the mesh gap and flows into the sorting tube to separate from the mixture. When the separation of the small diameter solid particles is completed, the remaining solid particles are sorted through the discharge pipe 40 communicating with the side of the sorting chamber.

In addition, the above-mentioned example is only an example to demonstrate this invention. Therefore, it is obvious that the ordinary skilled in the art to which the present invention pertains uses the partial change with reference to the detailed description.

1 is a schematic diagram of a particle size selection device according to an embodiment of the present invention.

2 is a perspective view showing a sorting means according to an embodiment of the present invention.

3A and 3B are schematic perspective and main cross-sectional views showing a sorting means according to another embodiment of the present invention.

Figure 4 is a schematic diagram of a particle size selection device connected to a plurality of sorting chambers according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10: particle size sorting device

20: sorting chamber 20a, 20b, 20c: first to third sorting chamber

21: dispersion plate 22: screening room

23: introduction room 24: filter

30,30a, 30b, 30c: sorting means

31: sorting tube 32: sorting unit 33,34: transfer pipe

311,321: Mesh

40,40a, 40b, 40c: discharge pipe

50: fluidized gas pipe

60: circulation tube

70: cyclone

80: solid particles

90: inlet pipe

Claims (4)

In the device for the particle size selection while flowing the solid particles of different particle size with the fluidization gas, A sorting chamber 20 for partitioning the upper sorting chamber 22 and the lower inlet chamber 23 with a dispersion plate 21 installed therein, wherein the sorting chamber fills solid particles to be sorted; Sorting means (30) installed in the sorting chamber (22) of the sorting chamber to sort according to the particle size; A discharge tube 40 communicating with the side of the sorting chamber and discharging the solid particles having the large diameter remaining after the sorting; A fluidizing gas pipe (50) for supplying a fluidizing gas to the lower introduction chamber of the sorting chamber; A circulation pipe (60) communicating with an upper end of the sorting chamber and receiving fluidized gas in which solid particles are fluidized and supplied back to the lower introduction chamber (23) of the sorting chamber; And a cyclone (70) installed on the flow path of the circulation pipe to separate the fine particles contained in the fluidized gas. The sorting means 30, A sorting tube 31 disposed in a sorting chamber and having an outer circumferential surface formed of a mesh 311, and having a lower end of the mesh in a lower portion than a portion communicating with the discharge pipe to insert solid particles having a diameter smaller than that of the mesh; A particle size sorting apparatus for solid particles using a fluidized bed, comprising: a transfer tube (33) communicating with the sorting tube and transferring solid particles having a small diameter introduced into the sorting tube to the outside. delete delete The method of claim 1, The sorting chamber 20 is composed of a plurality and connected in series to supply the solid particles separated by the sorting means to the next sorting chamber, the sorting means (30a, 30b, each of the sorting chambers 20a, 20b, 20c, 30c) is a particle size selection device of a solid particle using a fluidized bed, characterized in that by receiving a mesh having a small gap in order to be received in order from the larger solid particles to the smaller solid particles.

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