KR100592922B1 - Dry nano grinder and dry nano grinding system using the same - Google Patents

Abstract

The present invention relates to a dry nano pulverizer and a dry nano pulverization system using the same, the lower plate of the disc shape, the outlet is provided in the center, the top plate provided with an insertion hole so that the raw material can be inserted between the outlet and the outer peripheral surface, respectively The upper part of the lower plate and the bottom of the upper plate is coupled to be spaced apart by a predetermined distance, the high-pressure gas introduced through one inlet hole is introduced through a plurality of inlet holes having equal intervals and equiangular angles to form the upper plate and the lower plate An air jacket and liner for generating a uniform swirl flow therein, and a raw material input part coupled to the insertion hole of the upper plate to inject a raw material pulverized by high pressure gas into a space formed by the upper plate, the lower plate and the liner; Rotatingly coupled to the outlet of the upper plate, the fractionation unit for adjusting the separation distance with the center of the upper surface of the lower plate, and the outlet of the upper plate It is coupled to the upper side is composed of a discharge unit for inducing the discharge of the grinding result. As described above, the present invention configured as described above can dualize the injection position of the high pressure gas for pulverization and the position for injecting the raw material, so that the high pressure gas for pulverization can be introduced at uniform intervals and angles, so that the line flow By increasing the efficiency of the pulverization efficiency can be easily obtained by obtaining a grinding result of several nanometers particle diameter.

Description

Dry nano crusher and the dry process type nano crush system using that

1 is a cross-sectional view of main parts of a conventional dry mill.

FIG. 2 is a cross-sectional view taken along line II of FIG. 1. FIG.

3 is a cross-sectional view of main parts of the meat mixing chamber of FIG. 2.

4 is a cross-sectional view of main parts of a venturi nozzle of a conventional dry mill.

5 is a cross-sectional view of a dry nano grinder according to the present invention.

FIG. 6 is a plan view of the upper plate and a detailed cross-sectional view taken along the line A-A 'of FIG. 5;

7 is a plan view of a lower plate and a detailed sectional view taken along the line A-A 'in FIG. 5;

8 is a cross sectional view of the liner in FIG. 5 and a longitudinal cross-sectional view thereof.

9 is a plan view of the air jacket and a cross-sectional view taken along the line A-A 'of the plan view in FIG.

10 is a schematic diagram showing the flow of high-pressure gas for forming the swirl flow and the swirl flow formed in accordance with the present invention.

Figure 11a is an enlarged electron micrograph of the particle shape of the raw material before milling using a dry nano mill according to the present invention.

Figure 11b is an enlarged electron micrograph of the pulverized particle shape of the raw material pulverized using a dry nano crusher according to the present invention.

12 is a particle size distribution graph of pulverized particles pulverized using a dry nano pulverizer according to the present invention.

Figure 13 is a schematic diagram of a dry nano grinding system according to the present invention.

* Description of the symbols for the main parts of the drawings *

20: top 30: bottom

40: Liner 50: Air jacket

60: raw material input part 70: ejector

80: Raw material input hopper 90: Classification part

100: discharge part 110: support

120: fastening substrate 130: grinding area

141: Raw material tank 142: motor

143: screw feeder 144,147: transfer pipe

145: rotary dust collecting unit 146: grinding result receiving unit

148: Bag filter 149: Moving support plate

The present invention relates to a dry nano grinder, and more particularly, to a dry nano grinder capable of uniformly grinding particles such as metal into nanometer (nm) size.

In general, a dry mill for pulverizing particles such as metals, minerals, and crops into fine particles is configured to crush the introduced particles into micrometer units or nanometer units using a high-pressure air stream injected from the outside.

However, the conventional dry grinder is not easy to obtain a nanometer size grinding results because of its low grinding efficiency, and also because the particle size distribution of the grinding results is uneven, it is necessary to select the particles of the desired size from the grinding results again. And, such a conventional dry mill is described in Republic of Korea Patent Publication No. 10-2001-0026623, with reference to this in detail the conventional dry mill as follows.

1 is a sectional view of an essential part of a conventional dry grinder, FIG. 2 is a sectional view of an essential part of a line I-I of FIG. 1, FIG. 3 is a sectional view of an essential part of the meat mixing chamber of FIG. 2, and FIG. 4 is a view of a venturi nozzle of a conventional dry grinder. It is the main section.

In Fig. 1, reference numeral 1 denotes a conventional dry grinder, reference numeral 2 denotes a slewing grinding chamber formed in a hollow disk shape, reference numeral 3 denotes crushing disposed at equal intervals in the turning grinding chamber 2 The nozzle and reference numeral 4 are venturi nozzles arranged in one of the turning grinding chambers 2, and the reference numeral 5 is a venturi nozzle through the meat mixing chamber 8 upstream of the venturi nozzle 4. (4) coaxially with the press-in nozzle, reference numeral 6 denotes the main body casing, reference numeral 7 denotes the ring liner of the turning grinding chamber 2, reference numeral 8 denotes the meat mixing chamber, and reference numeral 9 ) And 10 are upper and lower liners disposed up and down of the slewing grinding chamber 2, and reference numeral 11 is a center column formed in a conical shape with an upper portion freely detachable at the center of the lower liner 10. , 12 is formed coaxially with the central column 11 and the outlet is freely disposed on the upper liner 9, the reference number 13 is installed in succession to the meat mixing chamber (8) Pulverized raw material inlet, reference numeral 14 denotes a fine powder outlet formed by a sleeve 14a, reference numeral 14a denotes a sleeve, reference numeral 15 denotes a high-pressure header tube, and reference numeral 15a denotes a high-pressure header tube ( 15 is a high pressure gas pipe for sending high pressure gas to the grinding nozzle 3 and the press-fit nozzle 5, and 16 is a pressure regulating valve for adjusting the pressure of the high pressure gas pipe 15a.

In Fig. 2, α is the spray angle of the venturi nozzle, and γ is the spray angle of the spray unit of the grinding nozzle. α is adjusted to 20 ° to 70 °, preferably 30 ° to 50 °. As it is smaller than 30 °, it tends to create a resistance to the intake of the mixed phase and disturbs the swirl flow, and as it is larger than 50 °, there is a tendency that squeezing or abrasion at the liner part tends to occur easily. not. γ depends on the number of grinding nozzles and the type of grinding material.

In Fig. 3, D is the inlet diameter of the opening upstream of the venturi nozzle 4, d is the outlet diameter of the indentation nozzle 5, l is the inlet of the venturi nozzle 4 and the indentation nozzle 5 Distance from the discharge side.

The distance l between the introduction portion of the venturi nozzle 4 of the meat mixing chamber 8 and the discharge side end portion of the indentation nozzle 5 satisfies the expression of l = (D / d) X k. ) Is determined. Here, k value is a value obtained by analysis and experiment, and k = 7-12, Preferably the value of 8-10 is employ | adopted.

In Fig. 4, θ1 is the inclination angle of the inlet of the throat portion Z3 (the rear part of the negative pressure generating portion Z2) with respect to the axis of the venturi nozzle, and θ2 is the outlet of the throat portion Z3 of the venturi nozzle. Θ3 is the inclination angle of the inlet portion Z1 of the venturi nozzle, Z1 is the inlet portion of the widened meat mixture upstream of the venturi nozzle, Z2 is a negative pressure generating portion formed by gently inclining with respect to the axis at the inlet end, Z3 is a throat portion formed substantially parallel to the axis, Z4 is a discharge portion widened at the rear of the throat portion Z3, (e) is the diameter of the inlet of the throat portion Z3, and (h) is the throat portion. The length of (Z3), (g) is the length of the negative pressure generating portion (Z2).

The inclination angle θ1 of the inlet of the throat portion Z3 (after the negative pressure generating portion) and the inclination angle θ2 of the outlet of the throat portion Z3 are 0.5 ° ≤θ1≤θ2, with respect to the axis of the venturi nozzle. Preferably, it is formed with 0.7 degrees ≤ θ 1 ≤ θ 2. And θ2 is formed from 2.5 ° to 6 °, preferably from 3 ° to 5 °. Further, the length g of the negative pressure generating portion Z 2 is 2 to 4.2 times the diameter D of the venturi nozzle introduction portion, preferably 2.2 to 3.8 times the length h of the throat portion Z 3. Is formed 2.25 to 5 times, preferably 3 to 4 times the diameter e of the inlet of the throat portion Z 3.

Hereinafter will be described the operation of the conventional dry grinder configured as described above.

The high pressure gas is supplied to the grinding nozzle 3 and the press-in nozzle 5 at the same pressure only by opening one pressure regulating valve 16. The grinding raw material is supplied from the grinding raw material inlet 13, and the grinding raw material and the air are mixed in the meat mixing chamber 8 by the high speed jets injected from the indentation nozzle 5. When the distance l between the venturi nozzle 4 and the press-in nozzle 5 satisfies the relationship of (D / d) Xk = l, k = 7 to 12, preferably 8 to 10, the swirl grinding chamber Since there is no pressure loss at the outlet of (2) and the venturi nozzle 4, the mixed phase flow from the venturi nozzle 4 is introduced from the venturi nozzle 4 into the swirl grinding chamber 2 at a stable and high speed. High-speed jets from the grinding nozzle 3 generate swirl flow in the turning grinding chamber 2, and a grinding zone is formed on the outer circumferential side of the turning grinding chamber 2, and classified at the center side of the turning grinding chamber 2 Zones are formed. Due to the high speed jet and the swirl flow, the grinding raw materials collide with each other, and the grinding raw materials are pulverized. The fine powder classified in the classification zone is discharged through the fine powder discharge port 14 from the outlet 12 of the turning grinding chamber, and at the same time, the coarse particles are turned around by the centrifugal force generated by the turning, and the coarse particles collide with each other. It is crushed repeatedly.

By the negative pressure generating portion of the venturi nozzle, the meat mixing upstream introduced from the inlet portion is accelerated and injected into the swing grinding chamber.

In addition, while maintaining the inlet portion of the press-fit nozzle and the venturi nozzle at a predetermined distance, the negative pressure generating portion is provided to balance the swirl flow by spraying the mixed phase flow into the swirl grinding chamber without losing the air volume and the wind pressure of the press-press nozzle. Controlled swirling flow can be achieved without breaking down.

However, the conventional dry grinder as described above forms the grinding nozzle 3 and the venturi nozzle 4 on the ring liner 7 constituting the side of the swing grinding chamber 2, and the venturi nozzle 4 is centered. The spacing between the two grinding nozzles 3 positioned in the direction is not able to make the swirl flow turning at even pressure due to the difference between the intervals (angular distance about the center of the turning grinding chamber) between the other grinding nozzles 3, which is There is a problem that it is not easy to obtain a fine powder having a particle diameter of the nanometer unit by lowering the efficiency.

 In addition, the conventional dry grinder is uniform in the overall height of the turning grinding chamber 2, there is no difference in the swirl flow pressure of the central portion and the peripheral portion of the turning grinding chamber 2, it is not possible to classify the grinding powder having a different particle size In addition, the stepped portion of the upper surface center portion at the lower end portion of the discharge port 12 may increase the discharge pressure in the portion by using the center column 11 having a higher height than the peripheral portion, and the pulverized object which is not crushed to a desired particle diameter may be discharged.

The pulverized product thus obtained is a mixture of fine powder having a desired particle size and fine powder of an unwanted particle size, there was a problem that the particle size distribution is uneven.

When the particle size distribution is uneven as described above, a sorting device must be used for sorting fine powder of a desired particle size, which has a problem of increasing the volume of the device and lowering the use efficiency and productivity.

In addition, the conventional dry grinder must use a total of eight high pressure gas pipes 15a to receive the high pressure gas from the high pressure header tube 17 in each of the seven grinding nozzles 3 and the venturi nozzles 4, Increasing the volume, can be used only in stationary equipment, there is a problem that the maintenance and repair costs increase due to the complexity of the equipment.

The present invention in view of the above problems is to provide a dry nano-crusher that can obtain a more uniform pressure swirl flow to the inflow angle of the inlet mill flow.

In addition, the present invention is to provide a dry nano-pulverizer that can grind the particles and classify the pulverized products according to the particle diameter, and can only discharge the fine powder having a desired particle size or less from the classified pulverized products.

In addition, another object of the present invention is to significantly reduce the number of pipes for injecting high-pressure gas to configure more simply, moveable, pulverization using a dry nano grinder and its dry nano grinder that can reduce maintenance and repair costs In providing a system.

And another object of the present invention is to quantify the input of the crushed raw material flowing into the dry nano grinder, pulverization using a dry nano pulverizer that can improve the productivity by automatically separating the pulverized powder and the introduced gas of the pulverized nano particle diameter In providing a system.

The present invention for achieving the above object is the lower plate of the disc shape, the outlet is provided in the center, the top plate provided with an insertion hole so that the raw material can be inserted between the outlet and the outer peripheral surface, and the upper and upper plates of the lower plate, respectively It is fitted to be spaced apart a predetermined distance on the bottom, the high-pressure gas introduced through one inlet hole is introduced through a plurality of inlet holes having an equal interval and an equal inclination angle to make a uniform swirl flow in the space portion formed with the upper plate and the lower plate Into the air jacket and liner for generating a raw material input portion is coupled to the insertion hole of the upper plate and the raw material pulverized by the high pressure gas into the space formed by the upper plate, the lower plate and the liner, and the outlet of the upper plate Rotatingly coupled, the fractionation unit for adjusting the separation distance with the upper surface center portion of the lower plate, coupled to the upper side of the outlet of the upper plate of the product of the grinding result As constituted by the discharge inducing have its features.

When described in detail with reference to the accompanying drawings, the present invention configured as described above are as follows.

Figure 5 is a cross-sectional configuration of the dry nano-crusher according to the present invention, as shown in the central upper side has a gentle upper surface having a lower step than the peripheral portion, spaced apart from each other on the peripheral portion of the upper surface A liner 40 provided with a lower plate 30 having an inner fixing groove and an outer fixing groove, and inserted into and fixed to the inner fixing groove of the lower plate 30, and having a grinder flow inlet 41 spaced at a predetermined interval from each other; Is inserted into and fixed in the outer fixing groove of the lower plate 30, there is provided an inlet for injecting the external high-pressure gas, the high-pressure gas is introduced into the area spaced from the liner 40 and the high pressure through each inlet (41) An air jacket 50 to allow gas to flow therein, and a fixing groove for accommodating the upper surface of the liner 40 and the air jacket 50 are provided at the periphery of the bottom, and an outlet 21 through which the pulverized product is discharged. Prepared, The central portion of the upper plate 20 and the upper plate 20 when the combination with the lower plate 30 is combined with the lower plate 30 is farther than the separation distance with the lower portion of the lower plate 30 peripheral portion when combined with the peripheral portion. Discharge unit 100 is coupled to the outlet 21 of the center of the upper surface and is rotatably coupled to the lower end of the outlet 21, the separation distance with the center of the lower plate 30 is adjusted according to the rotation Raw material for introducing a fixed amount of raw material into the raw material inlet unit 60, which is located between the sorting unit 90, the outlet port 21 and the liner 40 of the upper plate 20, The raw material introduced from the raw material input hopper 80 to the raw material input unit 60 by using the input hopper 80 and an external high pressure gas is first pulverized, and the pulverized material of the upper plate 20 and the lower plate 30 is crushed. Ejector 70 and the fastening base 120 for fixing the upper plate 20 and the lower plate 30 to be introduced into the area between the And, it is composed of a support (110) located on the bottom of the lower plate (30).

Hereinafter, the configuration of each component of the dry nano-crusher according to the present invention configured as described above, its coupling structure and action will be described in more detail.

First, FIG. 6 is a plan view of the upper plate 20 and a cross-sectional view taken along the line AA ′ of the plan view.

As shown in FIG. 6, a discharge port 21 through which the pulverized pulverized material is discharged is provided at the center of the upper plate 20, and a plurality of fastening holes 22 positioned at predetermined intervals are provided at the periphery thereof. An inner fixing groove 23 and an outer fixing groove 24 are positioned, and an insertion hole 25 into which the raw material input part 60 is inserted is provided between the fastening hole 22 and the discharge port 21.

The bottom surface of the upper plate 20 having a disc shape in which the discharge port 21 is provided in the center has a shape in which the center portion is gently concave.

7 is a plan view of the lower plate and a cross-sectional view in the A-A 'direction of the plan view, and as shown therein, an inner fixing groove 32 and an outer fixing groove 33 are provided at a periphery of the upper surface of the lower plate 30. On the outside of the outer fixing groove 33, a plurality of fastening holes 31 are provided at positions corresponding to the fastening holes 22 of the upper plate 20.

The upper surface of the lower plate 30 has a concave shape so that the center portion is lower.

Protrusions are provided in the central portions of the inner and outer fixing grooves 23 and 24 of the upper plate 20, and deeper grooves are provided in the central portions of the inner and outer fixing grooves 32 and 33 of the lower plate 30.

In this way, the inner and outer fixing grooves 23, 24, 32, 33 are more closely fixed to the liner 40 and the air jacket 50 having an upper surface and a lower surface that is inserted into the groove more precisely, the liner ( 40 and the air jacket 50 is to prevent the outflow of the high pressure air flow in the surface in contact with the upper plate 20 and the lower plate (30).

8 illustrates a parallel cross-sectional view and a longitudinal cross-sectional view of the liner 40. The liner 40 is provided with a groove in a part of the upper surface, and the inner fixing groove 32 of the lower plate 30 in the bottom surface. The protrusion is inserted into the groove located therein.

In addition, an inflow hole 41 which is drilled obliquely from the outer circumferential surface to the inner circumferential surface side is provided.

9 is a plan view of the air jacket 50 and a cross-sectional view in the A-A 'direction of the plan view, wherein a part of the upper surface is provided with a groove into which a protrusion of the outer fixing groove 24 of the upper plate 20 is inserted, Is provided with a protrusion is inserted into the groove in the outer fixing groove 33 of the lower plate 30, penetrating the upper and lower surfaces of the upper plate 20 and the lower plate 30, the fastening holes 22, 23 A fastening hole 51 opposed to is provided, and one inlet 52 for receiving a high pressure gas from the outside is provided.

Combination of the components of the dry nano-crusher according to the present invention configured as described above to the liner 40 and the air jacket 50 in the inner fixing groove 32 and the outer fixing groove 33 of the lower plate 30 respectively. Insert and fix the upper plate 20 to the upper portion of the fastening hole (22) and the fastening base (120) by inserting the fastening material 120 into the lower plate 30 and the air jacket 50 therebetween. It is made by fixing firmly.

Before such coupling, the discharge part 100 is coupled to the upper surface side of the outlet 21 of the upper plate 20, and the sorting unit 90 is coupled to the bottom surface side of the outlet 21.

The sorting unit 90 is screwed to the outlet 21 of the top plate 20, by adjusting the degree of rotation can adjust the length of the sorting unit 90 protruding from the bottom of the top plate 20. have.

In addition, a raw material input part 60 is inserted into the insertion hole 25 of the upper plate 20, and a raw material input hopper 80 and an ejector 70 are connected to the raw material input part 60.

In this state, when the quantitative raw material is introduced into the raw material input unit 60, the external high pressure gas is introduced through the ejector 70, and the raw material primarily crushed by the gas is the upper plate 20. The bottom surface of the upper plate 20, the inner circumferential surface of the liner 40, and the upper surface of the lower plate 30 are introduced into the crushing region 130 through the insertion hole 25.

At this time, when the external high pressure gas is introduced through the inlet 52 of the air jacket 50, the high-pressure gas is the crushing region 130 through the six inlet holes 41 provided in the liner 40 Flows in to form a swirl flow.

Conventionally, an inlet for injecting raw materials is provided on the side, and the inflow angle of the high pressure gas forming the swirl flow is different, so that a highly efficient swirl flow according to the pressure of the inflow high pressure gas cannot be formed.

However, in the present invention, since the input of the raw material is made through the upper plate 20, the high-pressure gas inlet 41 can be accurately divided into six parts to form a swirl flow without deterioration in efficiency.

The raw materials introduced after the primary grinding by the swirl flow are pulverized while rotating along the swirl flow.

The shape of the crushing region 130 is formed as a space in which the center portion is convex upward and downward as the bottom surface of the upper plate 20 and the upper surface of the lower plate 30 have concave shapes, respectively.

Since the cross-sectional area of the periphery of the grinding zone 130 is smaller than the cross-sectional area of the central portion, a strong flow of swirl flow is formed at the periphery, and the pressure of the swirl flow decreases toward the center.

The pulverized product pulverized from the raw material by the pressure difference in the pulverization zone 130 as described above is classified in the pulverization zone 130 by the difference in particle diameter, that is, the difference in mass.

In this case, the classification is performed by causing the grinding result having a smaller particle diameter to be moved to the center of the grinding area 130.

10 is a schematic diagram showing a swirl flow formed in accordance with the present invention and a high pressure gas flow for forming the swirl flow.

Referring to this, the high pressure gas through the inlet 52 of the air jacket 50, the inner circumferential surface of the air jacket 50 and the outer circumferential surface of the liner 40, the top plate between the air jacket 50 and the liner 40 ( 20) The bottom surface and the lower plate 30 is introduced into the space formed.

That is, it is possible to introduce the high pressure gas into the crushing zone 130 through all six inlet holes 41 provided in the liner 40 by being introduced through one inlet 52.

This makes it possible to simplify the configuration of the apparatus as compared with installing a high-pressure gas connecting pipe at each inlet hole and raw material inlet side in order to supply the high-pressure gas to the dry mill.

By simplifying the configuration of the device, it is easy to configure the device mobilely, it is possible to reduce the occurrence of the device failure, improve productivity, and reduce the maintenance cost.

As described above, the high pressure gas introduced through the one inlet 52 is introduced into the grinding zone 130 through the six inlet holes 41, and the high pressure gas introduced into the grinding zone 130 forms the swirl flow. Rotate and grind the raw material.

At this time, the pulverized raw material is classified by the pressure difference between the periphery and the center due to the shape of the crushing region 130 according to the shape of the upper plate 20 and the lower plate 30 so that the finely crushed particles move to the center portion. do.

The particles pulverized into particles having a particle diameter less than or equal to the distance of the upper surface of the sorting unit 90 and the lower plate 30 are discharged through the discharge unit 100 through a gap between the sorting unit 90 and the lower plate 30. .

The discharge part 100 has a shape in which the opening area of the upper side is larger than the opening area of the lower side, which allows secondary classification according to the weight of the pulverized particles.

That is, the pressure is lowered as the pulverized particles discharged at a high pressure increase as the opening area of the discharge part 100 increases, and crushed particles having a relatively heavy mass are not discharged, and the lower plate 30 exposed by gravity is exposed. It will fall back to the center of.

As described above, the present invention can obtain uniform particles pulverized to a desired particle size or less without using another classifier.

In addition, the discharge unit 100 may reduce the discharge pressure to lower the height of the vertical discharge pipe connected to the discharge unit 100, which improves mobility by reducing the volume of the overall system.

FIG. 11A is an electron micrograph of a raw material before grinding, FIG. 11B is an electron micrograph of an enlarged shape of the crushed particles obtained by grinding the raw material using a dry nanocrusher according to the present invention, and FIG. 12 is a particle size distribution graph. .

The raw material shown in Fig. 11A has a wide distribution of particle diameters, and it can be seen that the unit described in the lower right part of the picture has a relatively large particle diameter of 500 µm.

In addition, it turns out that a raw material has a rough surface and various shapes.

Figure 11b showing an enlarged picture of the result of the crushed by the dry nano-crusher of the present invention it can be seen that the unit described in the lower right portion is 1㎛ the size is significantly reduced compared to the raw material.

In addition, it can be seen that the particle size distribution of the crushed result is uniform, and that the surface is smooth and the shape is uniformly crushed into an elliptical shape.

A characteristic of the dry nanocrusher according to the present invention, which can be seen in the particle size distribution diagram of FIG. 12, is to show an even particle size distribution between 50 and 100 nm.

This is because the inflow of the high pressure gas for the formation of the line flow according to the present invention is spaced at regular intervals, thereby easily forming a high pressure line flow to increase the crushing efficiency of the particle size of the pulverized product of several to several tens of nanometers It is due to the characteristic configuration configured to be pulverized to the particle diameter, and the constitutional feature configured to discharge by limiting the particle diameter of the discharged pulverization result.

In addition, the components for receiving the high pressure gas may be reduced in efficiency due to wear of the inlet by the gas of the high pressure, the present invention is to configure the components of the easy replacement structure to prevent the decrease in efficiency, Productivity can be improved by reducing the amount of work and time required for maintenance.

That is, the ejector 70 for firstly crushing the raw material may be easily replaced when the high pressure gas inlet of the ejector 70 is rotatably coupled with the input unit 60 and the air jacket 50 is expanded. And the liner 40 can also be easily replaced by loosening the fastening base 120 consisting of bolts and nuts.

Support 110 is excluded from the above description is a cylindrical structure having a larger diameter of the bottom surface, serves to firmly support the dry nano grinder according to the present invention described above.

FIG. 13 is a block diagram of a dry grinding system optimized to decompose raw materials using a dry nano grinder according to the present invention as described above, and to easily obtain a result of milling a diameter of several nanometers or more.

Referring to this, the dry nano crushing system according to the present invention is a raw material tank 141 for storing raw materials, and the raw material input hopper 80 by quantitatively measuring the raw materials stored in the raw material tank 141 according to the driving of the motor 142. A screw feeder 143 for supplying the gas, a transfer pipe 144 for transferring the gas and the grinding result discharged through the discharge part 100, and separating the gas and the grinding result introduced through the transfer pipe 144 The rotary dust collecting unit 145, the grinding result receiving unit 146 for receiving the pulverized dust collected from the lower portion of the rotary dust collecting unit 145, and the transfer pipe 147 for transporting the gas separated from the rotary dust collecting unit 145 ), A bag filter 148 for releasing the gas discharged from the end of the transfer pipe 147, and a moving support plate 149 supporting the respective structures and having a wheel on the bottom thereof to enable movement. It is configured to include).

The dry nano pulverizer according to the present invention is to crush the raw material using a high pressure gas, the pulverized crushed product is discharged together with the gas.

In the related art, since the pulverized gas was filtered using a filter while simply discharging the pulverized gas, a process of recovering it was further required.

Dry nano crushing system according to the present invention by using a rotary dust collector (cyclone, 145) to discharge the discharged gas to a separate path, filtering the pulverized product contained in the effluent gas with a bag filter, most of the pulverized product The rotary dust collector 145 can be directly accommodated in the resultant receiving unit 146 such as a plastic bag to improve productivity.

The present invention has been shown and described with reference to certain preferred embodiments, but the present invention is not limited to the above-described embodiments and has ordinary skill in the art to which the present invention pertains without departing from the concept of the present invention. Various changes and modifications are possible by the user.

As described above, the present invention can dualize the injection position of the high pressure gas for pulverization and the input position of the raw material, so that the high pressure gas for crushing can be introduced at uniform intervals and angles, thereby improving the efficiency of the circuit flow. There is an effect that can easily obtain a grinding result of several nanometer particle diameter by increasing the efficiency.

In addition, according to the present invention, the shape of the pulverization zone where the pulverization is performed is made thicker than that of the periphery, so that a difference in the pressure of the convection flow in the pulverization zone can be classified according to the particle size of the pulverized product. There is an effect that can obtain a grinding result of a uniform particle size without the need for using a classification device.

In addition, the present invention defines the maximum particle size of the discharged grinding result so that only the grinding result is pulverized below the particle diameter can be selectively discharged, thereby producing a grinding result having a uniform particle size without using a separate classification device or process There is an effect that can be obtained.

The present invention simplifies the configuration of the apparatus by allowing a high pressure gas to flow through all of the plurality of inlets without using a pipe for injecting the high pressure gas into each of the plurality of inlets for crushing. And reduce the maintenance cost, there is an effect that is easy to move.

In addition, the present invention is to increase the diameter of the outlet in the process of discharging the crushed product to reduce the discharge pressure to perform the classification again, it is possible to reduce the volume of the device by reducing the height of the vertical direction of the discharge pipe.

In addition, the present invention by separating the discharged pulverized product and the discharge gas by using a rotary dust collector, there is an effect that can easily obtain a crushed product of the nanometer size.

Claims (12)

Disc bottom plate, The top plate is provided with a discharge port in the center, the insertion hole is provided so that the raw material can be introduced between the discharge port and the outer peripheral surface, The upper and lower surfaces of the upper plate and the bottom of the upper plate are combined to be spaced apart by a predetermined distance, and the high pressure gas introduced through one inlet hole is introduced through a plurality of inlet holes having equal intervals and equiangular angles to form the upper plate and the lower plate. An air jacket and liner for generating a uniform swirl flow in the part, A raw material input part coupled to the insertion hole of the upper plate to inject the raw material primarily crushed by the high pressure gas into a space formed by the upper plate, the lower plate and the liner; Is divided into the discharge portion of the upper plate, the classification unit for adjusting the separation distance with the center of the upper surface of the lower plate, Dry nano pulverizer characterized in that it comprises an outlet coupled to the upper side of the outlet of the top plate to induce the discharge of the grinding result. The lower surface of the upper plate and the upper surface of the lower plate is concave in shape, and the space defined by the lower surface and the upper plate and the liner of the upper plate decreases the pressure of the convection flow toward the center. Dry nano grinder. According to claim 1 or 2, wherein the lower plate and the upper plate is provided with an annular inner fixing groove and outer fixing groove for fitting the liner and the air jacket, it is fitted in the inner fixing groove and the outer fixing groove. Dry nano grinder, characterized in that the groove or protrusion is further provided so that the coupling can be made. According to claim 1, The lower plate, the upper plate and the air jacket is provided with a plurality of fastening holes up and down, inserted into the fastening hole further comprises a fastening base for fixing the lower plate, the top plate and the air jacket Dry nano grinder. According to claim 1, wherein the raw material input portion and the input pipe coupled to the insertion hole of the top plate, An ejector for introducing external high pressure gas from the other side of the input pipe; Dry nano crusher, characterized in that consisting of a raw material input hopper for inputting the quantitative raw material in the side of the input tube. The dry nano-pulverizer of claim 1, wherein the sorting part has a cylindrical shape, and a spiral groove which is rotatably coupled to the outlet of the upper plate is provided at one end of the outer peripheral surface thereof. The dry nano-pulverizer of claim 1, wherein the discharge part has an inner diameter having a bottom surface that is the same as the diameter of the discharge hole, and an upper side thereof has a cylindrical structure having a larger inner diameter than the diameter of the discharge hole. The air jacket of claim 1, wherein an outer diameter of the air jacket is equal to a diameter of the upper and lower plates, and the air jacket has one inlet for introducing a high pressure gas supplied from the outside, and the liner has a predetermined distance from the inner diameter of the air jacket. Dry nano grinder having a smaller outer diameter so as to be spaced apart, six inlet holes are inclined uniformly from the outer peripheral surface to the inner peripheral surface to allow the introduced high pressure gas to form a regular hexagon in the inner peripheral surface. The dry nano-pulverizer of claim 1, wherein an upper surface is coupled to a bottom of the lower plate, and further includes a cylindrical support having a larger diameter than that of the upper surface. A raw material tank for storing a large amount of raw material, A screw feeder for quantitatively supplying the raw materials stored in the raw material tank according to the driving of the motor; The raw material supplied by quantitatively by the screw feeder is first crushed using high pressure gas, and then the raw material is crushed through an inlet provided in the upper plate, and the line flow formed by the high pressure gas introduced at equal intervals and equilateral sides from the side is used. To crush the raw materials, classify them according to the shape of the raw material grinding space by the convection flow, and define the maximum particle size of the discharged grinding products so that only grinding products below the maximum particle diameter can be discharged. With nano grinder, A transfer pipe for conveying a predetermined distance in the vertical direction and the gas discharged through the dry nano grinder, and then in the horizontal direction; A rotary dust collector coupled to the other end of the transfer pipe to separate the transferred gas and the grinding result; A grinding result accommodation portion for receiving the collected grinding result; A gas transfer pipe for transferring the gas separated from the rotary dust collector; Dry nano grinding system comprising a bag filter for releasing the gas discharged from the end of the gas transfer pipe. 11. The dry nano pulverization system of claim 10, wherein one end of the gas delivery pipe is located lower than the rotary dust collector connection of the delivery pipe. The dry nano pulverization system of claim 10, further comprising a movable support having a plurality of wheels on the bottom thereof, wherein the components can be fixed to the top surface.

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