WO2014054646A1

WO2014054646A1 - Atomizing device

Info

Publication number: WO2014054646A1
Application number: PCT/JP2013/076721
Authority: WO
Inventors: 治彦板谷
Original assignee: 株式会社ワールドハンドリング
Priority date: 2012-10-02
Filing date: 2013-10-01
Publication date: 2014-04-10
Also published as: JP2014069172A

Abstract

This atomizing device mixes and disperses liquids of different types flowing in from a base end side and makes an outflow from a tip end side. The atomizing device is provided with: a first nozzle part (60) which has a first nozzle main body (61) positioned at the base end side, a protruding part (72) provided on the first nozzle main body (61) and formed oriented toward the tip end side, and a guide passage (75) one end of which is provided on the base end side of the first nozzle main body (61) and the other end of which is formed in the outside surface (63) of the protruding part (72); a second nozzle part (40) which has a second nozzle main body (41) positioned at the tip end side with respect to the first nozzle part (60), a recessed part (52) formed on the base end side of the second nozzle main body (41) and formed such that the protruding part (72) is insertable therein, and a second guide passage (45) one end of which is provided on the bottom part (44) of the recessed part (52) and the other end of which is formed in the tip end side of the second nozzle main body (41); and a nozzle drive mechanism (70) for adjusting a gap between the tip end part of the protruding part (72) and the bottom part (44).

Description

Particulater

The present invention relates to a micronizing apparatus for micronizing substances that do not mix with each other and dispersing them in a liquid.

There are known micronization devices as a method for finely mixing substances that do not mix with each other, such as water and oil, and uniformly dispersing fine particles in a liquid. . The micronization device performs dispersion and micronization by pressurizing a plurality of substances such as water and oil, which are not mixed with each other, and a liquid containing fine particles as fluids to be processed and colliding with each other. As an example of such a micronizing device, for example, there is known a device of a type in which two nozzles are set as one set in the same straight line with jetting ports facing each other and fluids to be treated ejected from both nozzles face each other. (For example, Japanese Patent Laid-Open No. 06-047264). In this micronizing device, the fluid that did not collide against the nozzle collides with the nozzle body. In order to predict and avoid this collision with the nozzle body, an apparatus of a system in which the ejection direction of the two nozzles is provided with an angle instead of being linear is also known (for example, Japanese Patent Application Laid-Open No. Hei 10). -337457).

In order to atomize the fluid to be treated, it is necessary that the pressure of the fluid to be treated at the nozzle inlet is pressurized above a certain level. For this reason, the flow path cross-sectional area increases due to friction with the fluid to be processed. In order to maintain the pressure in the nozzle tube, it is necessary to increase the supply amount of the pump that supplies the fluid to be processed. Therefore, the nozzle is replaced when the flow rate of the fluid to be processed in the nozzle exceeds the limit of the pump capacity. In order to reduce the replacement frequency of such nozzles, a pipe having a shape that hardly causes wear has been proposed (for example, Japanese Patent Laid-Open No. 06-278030).

In addition to the above-described micronizing device, a micronizing device with various improvements has been proposed in response to demands for longer nozzle life (for example, Japanese Patent Application Laid-Open No. 2009-111002, Japan). JP, 2011-088108, A).

The above-described micronizer has the following problems. That is, the nozzles described above have problems such as wear in the nozzle tube accompanying the atomization, blockage in the tube due to the solid component in the fluid to be treated, and insufficient atomization.

¡In the case of an integrally formed nozzle, if wear occurs in the nozzle tube, it is not possible to compensate for pressure changes on the nozzle side. For this reason, it is necessary to increase the supply amount of the pump in order to keep the pressure constant. When the supply amount necessary to keep the pressure above a certain level exceeds the limit of the nozzle supply capability, the nozzle needs to be replaced. Although a method for lowering the nozzle replacement frequency has been proposed by making the nozzle tube shape less susceptible to wear, the flow rate is increased. For this reason, the replacement time of the nozzle still depends on the limit of the supply capacity of the pump, and the replacement frequency of the nozzle cannot be sufficiently reduced. Moreover, when the inside of a nozzle pipe | tube is obstruct | occluded, it is necessary to remove the solid part in a pipe | tube. Because of the demand for releasing the blockage, when using the above-described microparticulation device, it is necessary to incorporate a device such as an ultrahigh pressure motorized valve in the circuit, and there is a problem that the formation of the microparticulation circuit is limited.

In the nozzle where the injection ports are opposed, it is difficult to cause the fluids to be treated to collide with each other accurately, and uniform high-purity fine particles cannot be obtained. Moreover, in the micronizing device that solves this problem, the wear of the nozzle cannot be reduced, and the frequency of nozzle replacement increases. In addition, when it forms with an angle in the ejection direction of a nozzle, the distance between the nozzles which opposes becomes large. For this reason, there is a problem that the impact force of the opposing collision becomes small and sufficient fine particles cannot be formed.

Therefore, the present invention enables sufficiently uniform and high-purity fine particles at an arbitrary processing flow rate, can sufficiently reduce the frequency of nozzle replacement, and can cope with pressure drop and blockage of the nozzle. An object is to provide an easy atomization apparatus.

In order to solve the above problems and achieve the object, the micronizing apparatus of the present invention is configured as follows.

In a microparticulater that mixes and disperses different types of liquid flowing in from the base end side and flows out from the tip end side, a first nozzle body located on the base end side, provided on the first nozzle body, the tip side A first nozzle portion having a first guide path formed at a base end side of the first nozzle body and having the other end formed on an outer surface of the convex portion. A second nozzle body located on the distal end side with respect to the first nozzle part, and a recessed part formed on the base end side of the second nozzle body so that at least the convex part can be inserted and removed. A second nozzle portion having one end provided at the bottom of the recessed portion and the other end formed on the tip side of the second nozzle body, a tip portion of the convex portion, and the bottom portion. And a nozzle drive mechanism that adjusts the distance between them.

According to the present invention, sufficiently uniform and high-purity fine particles can be obtained at an arbitrary processing flow rate, the frequency of nozzle replacement can be sufficiently reduced, and further, it is possible to cope with nozzle pressure drop and blockage. Is possible.

FIG. 1 is an explanatory view showing a micronization system pipe using a micronization apparatus according to an embodiment of the present invention. FIG. 2 is a cross-sectional view showing the structure of the micronization apparatus. FIG. 3 is an explanatory diagram showing the atomization of the fluid to be processed in the nozzle by enlarging the main part of the atomization apparatus.

FIG. 1 is an explanatory view showing the piping of the atomization circuit 10 incorporating the atomization device 30 according to one embodiment of the present invention, FIG. 2 is a sectional view showing the structure of the atomization device 30, and FIG. It is explanatory drawing which expands the principal part of the apparatus 30 and shows the flow path of the to-be-processed fluid. In FIG. 2, S denotes a central axis that is parallel to the direction from the inflow side to the outflow side of the atomization device 30 and passes through the center of the atomization device 30.

The microparticulation circuit 100 is formed on the inflow side, and premixing is performed such that an emulsifier and a first substance and a second substance (for example, water and oil) that are not mixed with each other flow in and are premixed and then discharged as a processing fluid. Part 10, a high-pressure pump 26 that is located downstream of the premixing unit 10 and pressurizes the fluid to be treated that has flowed out of the premixing unit 10, and is provided on the downstream side of the high-pressure pump 26. A first atomizer 30 to be performed; a first flow meter 27 that is provided on the downstream side of the atomizer 30 and that measures the flow rate of the fluid to be processed flowing out of the atomizer 30; And a discharge path 28 for discharging the fluid to be processed. The high pressure pump 26 pressurizes the fluid to be treated to 8 to 300 MPa and sends it to the micronizer 30. Further, the pipe between the high-pressure pump 26 and the micronizer 30 is branched and a pressure gauge 29 is connected. A certain pressure or more is required for atomization of the fluid to be treated. The measurement value obtained by the pressure gauge 29 is used to control the atomization apparatus 30 to maintain the treatment pressure at a certain value or more.

The premixing unit 10 is connected to an emulsifier supply circuit 11 for supplying an emulsifier, a first substance supply circuit 16 for supplying a first substance, and a second substance supply circuit 21 for supplying a second substance. The premixing unit 10 has three flow control structures similar to those of the micronizer 30 described later, and each controls the flow rates of the emulsifier, the first substance, and the second substance.

The emulsifier supply circuit 11 controls the flow rate with the first check valve 12 with a cracking pressure, while the emulsifier supply pump 13 supplies the emulsifier to the premixing unit 10 and the flow path from the emulsifier supply pump 13 toward the premixing unit 10. A second flow meter 14 for measuring the flow rate of the emulsifier, and a reverse with a second cracking pressure provided between the second flow meter 14 and the premixing unit 10 to prevent backflow from the premixing unit 10 And a stop valve 15. The flow rate of the emulsifier is controlled by the premixing unit 10 using the measured value obtained from the second flow meter 14. Since the discharge amount of the emulsifier supply pump 13 is constant, when the flow rate of the emulsifier is reduced by the premixing unit 10, a load is generated on the emulsifier supply pump 13. The first check valve with cracking pressure 12 has a function of returning the emulsifier to the inlet side of the emulsifier supply pump 13 without applying a load to the emulsifier supply pump 13.

The first substance supply circuit 16 includes a first substance supply pump 18 for supplying the first substance to the premixing unit 10 while controlling the flow rate by the third cracking pressure check valve 17, and a first substance supply pump 18. A third flow meter 19 is provided on the flow path toward the premixing unit 10 to measure the flow rate of the first substance, and is provided between the third flow meter 19 and the premixing unit 10. And a fourth cracking pressure check valve 20 for preventing backflow. The flow rate of the first substance is controlled by the premixing unit 10 using the measured value obtained from the third flow meter 19. Since the discharge amount of the first substance supply pump 18 is constant, a load is generated in the first substance supply pump 18 when the flow rate of the first substance is reduced by the premixing unit 10. The third cracking pressure check valve 17 has a function of returning the first substance to the inlet side of the first substance supply pump 18 without applying a load to the first substance supply pump 18.

The second substance supply circuit 21 includes a second substance supply pump 23 for supplying the second substance to the premixing unit 10 while controlling the flow rate with the fifth check valve 22 with a cracking pressure, and the second substance supply pump 23. A fourth flow meter 24 for measuring the flow rate of the second substance provided on the flow path toward the premixing unit 10, and provided between the fourth flow meter 24 and the premixing unit 10, And a sixth cracking pressure check valve 25 for preventing backflow. The flow rate of the second substance is controlled by the premixing unit 10 using the measured value obtained from the fourth flow meter 24. Since the discharge amount of the second substance supply pump 23 is constant, when the flow rate of the second substance is reduced by the premixing unit 10, a load is generated on the second substance supply pump 23. The fifth check valve 22 with a cracking pressure has a function of returning the second substance to the inlet side of the second substance supply pump 23 without applying a load to the second substance supply pump 23.

Since the second cracking pressure check valve 15, the fourth cracking pressure check valve 20, and the sixth cracking pressure check valve 25 cannot make the inflow pressure of the emulsifier, the first substance and the second substance the same, It has a function to prevent backflow caused by this.

The micronizing device 30 is formed with the central axis S as an axis, and has a function of allowing the fluid to be treated to flow from the base end side (upper side in FIG. 2) and discharging from the tip side (lower side in FIG. 2) after micronization. is doing. In the following description, the inflow side will be described as the base end side, and the outflow side will be described as the front end side.

The atomization device 30 is provided on the distal end side of the inner peripheral portion of the outer cylindrical member 40 connected to the atomization circuit 10 and the female nozzle portion 50 having a recess opening at the proximal end side. The inner cylindrical member 60 coaxially included in the outer cylindrical member 40, and liquid tightly held on the distal end side of the inner cylindrical member 60, the distal end portion of which is exposed from the inner cylindrical member 60, and the female A male nozzle part 70 detachably formed in the concave part of the nozzle part 50, and a seal part 90 for liquid-tightly closing between the outer peripheral surface of the male nozzle part 70 and the inner peripheral surface of the outer cylindrical member 40. I have. Furthermore, a drive unit (nozzle drive mechanism) 80 is provided that causes the male nozzle unit 70 to advance and retract along the central axis S direction with respect to the female nozzle unit 50 by a screw mechanism described later.

The outer cylindrical member 40 has a shape penetrating from the proximal end side 40 a to the distal end side 40 b, and the distal end side 40 b is connected to the atomization circuit 10. A female nozzle portion 50 is provided on the distal end side 40 b of the inner peripheral portion of the outer cylindrical member 40. The outer cylindrical member 40 is provided between an outer female screw portion 41 formed on the proximal end side 40 a of the inner peripheral portion, and between the outer female screw portion 41 and the female nozzle portion 50. A fixing hole 42 that penetrates in the radial direction and a fixing pin (rotation stop pin) 43 that is inserted and fixed to the fixing hole (rotation stop hole) 42 from the outside are provided. The fixing hole 42 is formed as a set of two fixing holes 42 formed at symmetrical positions with respect to the central axis S. The fixing pin 43 engages with a fixing groove (rotation stop groove) 64 formed in the inner cylindrical member 60 described later, so that the inner cylindrical member 60 with respect to the outer cylindrical member 40 with the central axis S as an axis. Prevent relative rotation of the. In addition, the outer peripheral part of the base end side 40a of the outer cylindrical member 40 is provided with a flange portion 44 and a mounting hole 45 formed in the flange portion 44 so as to penetrate from the base end side to the tip end side. . The outer cylindrical member 40 is fixed to the atomization circuit 10 by the flange portion 44 and the attachment hole 45.

The female nozzle portion 50 is formed around the central axis S, and has a female nozzle body (second nozzle body) 51 that is liquid-tightly joined to the inner peripheral surface of the distal end side 40 b of the outer cylindrical member 40, and the female nozzle body 51. It has a recessed part 52 (the above-mentioned recessed part) that is provided and opens on the base end side, and an ejection path (second guiding path) 55 that communicates from the recessed part 52 to the outflow side. The recessed part 52 has a shape penetrating the truncated cone, and has an inner side surface portion 53 corresponding to the side surface of the truncated cone and a female nozzle surface 54 corresponding to the upper bottom surface of the truncated cone. One end of the ejection path 55 is located at the center of the female nozzle surface 54. Note that the inclination of the inner side surface portion 53 is defined by a predetermined angle α with respect to the central axis S.

The inner cylindrical member 60 is provided on the outer peripheral portion, and has an inner male screw portion 61 formed in a reverse thread with respect to the outer female screw portion 41, and the inside from the proximal end side to the distal end side along the central axis S. It has an inflow passage 62 that penetrates, and a fixing groove 64 that is provided on the distal end side from the inner male screw portion 61 of the outer peripheral portion. The fixing groove 64 is a set of two fixing grooves 64 formed from the proximal end side to the distal end side at the target position with respect to the central axis S, and the distal end portion of the fixing pin 43 is engaged as described above. To do. Thereby, relative rotation around the central axis S of the inner cylindrical member 60 with respect to the outer cylindrical member 40 is prevented.

The male nozzle portion 70 is formed with the central axis S as an axis. The male nozzle portion 70 is provided on the distal end side of the male nozzle body 71 with a cylindrical male nozzle body (first nozzle body) 71 that is liquid-tightly fixed to the inner peripheral surface on the distal end side of the inner cylindrical member 60. And a convex portion 72 exposed from the inner cylindrical member 60, and a guide path (first guide path) 75 formed inside the male nozzle portion 70. One end of the guide path 75 is located on the base end side of the male nozzle body 71 and communicates with the inflow path 62. The convex portion 72 has a tapered outer surface portion 73 formed on the distal end side thereof and a male nozzle surface 74 formed on the distal end of the outer surface portion 73. On the proximal end side of the outer side surface portion 73, the other end portion of the guide path 75 is provided.

The tapered slope of the outer surface portion 73 is defined by a predetermined angle β with respect to the central axis S, and this angle β is formed to be equal to the angle α that defines the inner surface portion 53 described above. The diameter of the male nozzle surface 74 is formed to be equal to the diameter of the female nozzle surface 54 described above. For this reason, when the male nozzle surface 74 and the female nozzle surface 54 are in contact with each other, the outer surface portion 73 and the inner surface portion 53 are also in contact with each other, and the distal end side of the convex portion 72 and the recessed portion 52 are fitted.

The driving unit 80 is provided on the proximal end side 40a of the outer cylindrical member 40, and is formed in an annular shape with the central axis S as an axis. The drive unit 80 includes a passive unit 81 that receives a rotational force from the outside by a motor or the like, and a transmission unit 82 provided between the outer female screw part 41 and the inner male screw part 61. An outer male screw portion 83 that engages with the outer female screw portion 41 is formed on the outer periphery of the transmission portion 82, and an inner female screw portion 84 that engages with the inner male screw portion 61 is formed on the inner periphery. Note that, as described above, the inner female screw portion 84 and the inner male screw portion 61 are formed in reverse threads with respect to the outer female screw portion 41 and the outer male screw portion 83. Further, due to the fixing pin 43 and the fixing groove 64, the inner cylindrical member 60 does not rotate relative to the outer cylindrical member 40. Accordingly, when the drive unit 80 rotates about the central axis S, the inner cylindrical member 60 advances and retreats in the direction of the central axis S with respect to the outer cylindrical member 40.

The seal portion 90 is annular and is provided between the outer periphery of the convex portion 72 and the inner periphery of the outer cylindrical member 40. The outer peripheral portion of the seal portion 90 is liquid-tightly fixed to the outer cylindrical member 40. The inner peripheral surface of the seal part 90 supports the male nozzle part 70 in a liquid-tight manner and the male nozzle part 70 is slidable in a direction along the central axis S. The seal member 90 is provided at a position where the end of the guide path 75 on the convex portion 72 is not blocked.

Next, the flow path of the fluid to be processed and the atomization by the opposing collision will be described. As described above, in the micronizer 30, the flow path from the guide path 75 to the ejection path 55 is formed by the male nozzle portion 70, the seal portion 90, the female nozzle portion 50, and the outer cylindrical member 40. It is liquid-tight.

The fluid to be treated that has flowed into the micronizing device 30 passes through the guide path 75 in the male nozzle portion 70 as indicated by the arrow Y1, and is guided onto the outer surface portion 73 as indicated by the arrow Y2. After that, as indicated by an arrow Y3, it passes between the outer surface portion 73 and the inner surface portion 53, and is guided between the male nozzle surface 74 and the female nozzle surface 54 as indicated by an arrow Y4. Thereafter, the fluid to be treated flows from all directions of 360 degrees around the central axis S toward the ejection path 55 and collides with each other to be atomized. The fluid to be processed is discharged from the ejection path 55 as indicated by an arrow Y5 after being atomized. In the micronizing device 30, since the opposing collision is performed from all directions at 360 degrees, uniform and high-purity micronization can be performed. In addition, by forming the areas of the male nozzle surface 74 and the female nozzle surface 54 small, the distance from when the fluid to be processed flows between the male nozzle surface 74 and the female nozzle surface 54 until the opposite collision occurs is shortened. be able to. Thereby, it is possible to atomize with a sufficient impact force.

It should be noted that the flow rate of the micronizing device 30 is formed to be the smallest between the front end portion of the outer surface portion 73 and the inner surface portion 53. That is, the processing flow rate of the micronizer 30 under a constant processing pressure depends on the distance between the outer surface portion 73 and the inner surface portion 53. Since the inner cylindrical member 60 can move relative to the outer cylindrical member 40 by rotating the drive unit 80, the interval between the outer side surface 73 and the inner side surface 53 is also arbitrarily adjusted, and the processing flow rate is adjusted. Can be any value. Similarly, any processing pressure can be obtained under a constant processing flow rate. Therefore, it is possible to obtain an arbitrary processing flow rate and processing pressure. Further, even when the gap between the convex portion 72 and the concave portion 52 is blocked by a solid portion in the fluid to be processed, the blockage is released by widening the interval between the convex portion 72 and the concave portion 52. Is possible.

As described above, in order to atomize the fluid to be treated, it is necessary to cause the fluid to be treated, which has been pressurized above a certain treatment pressure, to face each other. In the micronizing device 30, the space between the outer side surface portion 73 and the inner side surface portion 53 increases due to friction with the fluid to be processed, and the pressure decreases. In this case, the pressure can be kept constant by adjusting the distance between the outer surface portion 73 and the inner surface portion 53 by the drive unit 80.

Next, an experiment in which the effect of the atomization apparatus 30 according to the present embodiment was verified will be described. The experiment was conducted for three cases. Experiment 1 shows the change over time of the treatment flow rate when the liquid to be treated is kept flowing for a long time, and Experiment 2 shows the change over time in the treatment flow rate at a different initial treatment flow rate, compared with a commonly used atomization apparatus. Went. In Experiment 1 and Experiment 2, the processing pressure was maintained by increasing the flow rate of the fluid to be processed without performing correction by the driving unit 80. Further, in Experiment 3, when the processing flow rate was changed due to wear, the verification by the rotation of the drive unit 80 for maintaining the processing pressure constant was verified.

In addition, the micronizer 30 used in Experiment 1 to Experiment 3 has a sum of the pitch of the outer female screw portion 41 and the outer male screw portion 83 and the pitch of the inner female screw portion 84 and the inner male screw portion 61 is 0.75 mm. The inclination of the outer side surface portion 73 and the inner side surface portion 53 was set to 5 degrees with respect to the central axis S. The diameters of the male nozzle surface 74 and the female nozzle surface 54 were 4 mm, and the material of the male nozzle portion 70 and the female nozzle portion 50 was zirconia ceramics. In this case, when the drive unit 80 is rotated once, the separation distance between the male nozzle surface 74 and the female nozzle surface 54 is 0.75 mm, and the separation distance between the outer surface portion 73 and the inner surface portion 43 is 1 [rotation]. From the formula of 0.75 [mm] · sin5≈0.06525 [mm], it is 0.06525 mm. Thus, since the separation distance between the outer side surface 73 and the inner side surface 43 when the drive unit 70 is rotated once is very small, the flow rate of the fluid to be processed can be finely controlled.

The atomization apparatus used as a comparison target in Experiment 1 and Experiment 2 used an apparatus in which two nozzles are arranged as opposed to each other with the ejection ports facing each other, and the fluids to be treated ejected from both nozzles collide with each other. In addition, the nozzle of the comparative micronizer was made of natural diamond that is generally used.

In Experiment 1, the wear in the nozzle was compared by comparing the elapsed time and the treatment flow rate. In this experiment, in both the micronizer 30 and the comparative example, the initial processing flow rate was 2 liters per minute when 250 MPa was applied, and the distance between the outer surface portion 73 and the inner surface portion 53 was 0.00113 mm. In the comparative example, two nozzles having a diameter of 0.19 mm were used as a set. As a result of this experiment, Table 1 shows the change in flow rate and Table 2 shows the rate of change in flow rate, with Experimental Example 1 using the micronization device 30 and Comparative Example using the micronization device to be compared. .

In the comparative examples shown in Tables 1 and 2, the flow rate increases due to wear of the nozzles, and it is usually necessary to replace the nozzles after 300 to 600 hours. On the other hand, in Experimental Example 1, the amount of increase in the flow rate is slight. Thus, from the results of this experiment, it can be confirmed that the micronization apparatus 30 according to the present embodiment has high wear resistance.

In Experiment 2, the wear in the nozzles was compared for each of the initial process flow rates of 4 L / min, 8 L / min, 16 L / min, and 32 L / min. The wear comparison method was performed by comparing the elapsed time and the treatment flow rate as in Experiment 1.

In order to obtain each initial flow rate, the micronizer 30 has an interval between the outer surface portion 73 and the inner surface portion 53 of 0.00222 mm in the case of 4 L / min, 0.00446 mm in the case of 8 L / min, and 16 L / min. In the case of 0.00891 mm, the case of 32 L / min was adjusted to 0.0177 mm. In addition, in order to obtain each initial flow rate, the nozzles used in the comparative examples were each set of two units of Ф0.2665 · 1 + Ф0.2658 · 1 at 4 L / min, and 、 0.375540 · 1 + Ф0 at 8 L / min. .37600 ・ 1 2 pieces 1 set, 16L / min is Ф0.5344 ・ 1 + Ф0.5302 ・ 1 2 pieces 1 set, 32L / min is Ф0.7594 ・ 1 + Ф0.755891 A set was used. The experimental results are shown in Tables 4 to 10. In Tables 4 to 10, the result of the micronizing device 30 is Experimental Example 2, and the result of the micronizing device to be compared is a comparative example.

Tables 3 and 4 show an initial flow rate of 4 L / min, Tables 5 and 6 show an initial processing flow rate of 8 L / min, Tables 7 and 8 show an initial processing flow rate of 16 L / min, and Tables 9 and 10 show an initial processing flow rate of 32 L / min. The change with time and the rate of change of the processing flow rate in each case are shown.

From the above results, it can be confirmed that the micronization device 30 has higher wear resistance than the micronization device generally used. However, even when the micronizer 30 is used, wear is increased under severe conditions such as an initial processing flow rate of 32 L / min.

In Experiment 3, for example, as in Experiment 2, when the male nozzle unit 70 and the female nozzle unit 50 are worn and the processing flow rate is increased, an experiment for verifying the correction of the processing flow rate for maintaining the processing pressure is performed. went. In this experiment, the rotation angle of the drive unit 80 was compared with the processing flow rate corrected by the drive unit 80. The experimental results are shown in Table 11.

From the above results, even if the flow rate increases due to wear, the processing flow rate can be kept constant by performing correction. Accordingly, it is not necessary to replace the nozzles due to the limit of the supply capacity of the pumps (emulsifier pump 22, first pump 23, second pump 24) for supplying the fluid to be treated, and therefore it is possible to reduce the frequency of nozzle replacement. is there.

According to the atomization apparatus 30 according to the present embodiment, it is possible to have higher wear resistance than a generally used atomization apparatus. Even when wear occurs, the interval between the male nozzle portion 70 and the female nozzle portion 50 can be adjusted, so that an arbitrary processing flow rate and processing pressure can be obtained. Therefore, it is possible to correct the pressure drop due to wear. Further, by forming the male nozzle surface 74 and the female nozzle surface 54 small, it is possible to perform a 360-degree opposing collision with a sufficient impact force, and sufficiently uniform high-purity fine particles can be obtained. Further, by adjusting the distance between the male nozzle portion 70 and the female nozzle portion 50, when the gap between the convex portion 72 and the concave portion 52 is blocked, the blockage can be released.

As described above, according to the present invention, uniform high-purity fine particles can be obtained at an arbitrary processing flow rate, and the frequency of nozzle replacement can be sufficiently reduced. Is possible.

The present invention is not limited to the above embodiment. For example, in the above-described example, the outer cylindrical member and the female nozzle portion are separate members, but it is needless to say that the present invention can be similarly applied even when they are integrally formed. Of course, various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 ... Preliminary mixing part, 30 ... Micronizer, 40 ... Outer cylindrical member, 50 ... Female nozzle part, 60 ... Inner cylindrical member, 70 ... Male nozzle part, 80 ... Drive part, 90 ... Seal part, 100 ... Particulate circuit.

Claims

In a micronizer that mixes and disperses different types of liquid flowing in from the base end and flows out from the front end.
A first nozzle body located on the proximal end side, a convex portion provided on the first nozzle body and formed toward the distal end side, and one end thereof provided on the proximal end side of the first nozzle body. A first nozzle portion having a first guide path formed on the outer surface of the convex portion at the other end;
A second nozzle body located on the distal end side with respect to the first nozzle part, and a recessed part formed on the base end side of the second nozzle body so that at least the convex part can be inserted and removed; A second nozzle portion having one end provided at the bottom of the recessed portion and the other end formed on the tip side of the second nozzle body;
A microparticulater comprising a nozzle driving mechanism for adjusting a distance between a tip portion of the convex portion and the bottom portion.
The dissimilar liquid flows from 360 degrees in all directions between the convex part and the concave part with the direction from the base end side to the tip side as the axis toward the axis, and the second guide 2. The microparticulater according to claim 1, wherein the micronizer collides in the vicinity of the road.
When the gap between the convex portion and the concave portion is blocked, the blockage is released by adjusting a distance between the convex portion and the concave portion using the nozzle driving mechanism. 2. The micronization apparatus according to 1.
2. The microparticulater according to claim 1, wherein the nozzle driving mechanism adjusts the pressure of the different kind of liquid by adjusting a distance between a tip portion of the convex portion and the bottom portion.
3. The microparticulater according to claim 2, wherein the impact force of the opposing collision is increased by reducing the area of the tip of the convex part and the bottom of the concave part.
In a micronizer that mixes and disperses different types of liquid flowing in from the base end and flows out from the front end.
An outer cylindrical member having an outer female screw portion at the proximal end of the inner peripheral portion;
A female nozzle body provided on the distal end side of the inner peripheral portion of the outer cylindrical member, a recessed portion provided on the proximal end side of the female nozzle body and opening on the proximal end side, and A female nozzle part formed on the bottom, and a female nozzle part having a jet passage communicating from the central part of the female nozzle face to the tip side of the female nozzle body;
An inner cylindrical member body having a cylindrical shape provided coaxially with the outer cylindrical member, a tip portion of which is located between the outer female screw portion and the female nozzle portion, and the inner cylindrical member On the outer peripheral surface of the main body, an inner cylindrical member having an inner male screw portion formed in a reverse thread with respect to the outer female screw portion,
A male nozzle main body that is liquid-tightly held on the front end side of the inner peripheral portion of the inner cylindrical member, provided on the front end side of the male nozzle main body, exposed from the inner cylindrical member, and an outer surface thereof A convex part formed so as to be able to be inserted into and removed from the concave part while facing the inner peripheral surface of the concave part, a male nozzle surface provided on the tip side of the convex part and facing the female nozzle surface, One end is provided on the base end side of the male nozzle body, and the other end is a male nozzle portion having a guide path formed on the outer surface portion of the convex portion,
On the base end side from the convex portion, a seal portion that liquid-tightly seals between the outer peripheral surface of the male nozzle portion and the inner peripheral surface of the outer cylindrical member;
A cylindrical portion provided coaxially with the outer cylindrical member and the inner cylindrical member between the outer female screw portion and the inner male screw portion, and receiving a rotational force from the outside, and the cylindrical portion An outer male screw portion that is screwed with the outer female screw portion, and an inner female screw portion that is formed on the inner peripheral side of the cylindrical portion and screwed with the inner male screw portion. And a driving part that adjusts the axial position of the male nozzle relative to the female nozzle part by rotating the cylindrical part with respect to the outer cylindrical member and the inner cylindrical member. Device.
The dissimilar liquid flows from 360 ° in all directions between the male nozzle surface and the female nozzle surface from the base end side toward the tip end side toward the axis, The microparticulater according to claim 6, which collides oppositely in the vicinity of the road.
When the gap between the convex portion and the concave portion is blocked, the blockage is released by adjusting an axial interval between the convex portion and the concave portion using the driving unit. The micronization apparatus according to claim 6.
The microparticulation apparatus according to claim 6, wherein the driving unit adjusts the pressure of the different liquid by adjusting the position of the male nozzle in the axial direction with respect to the female nozzle unit.
The microparticulater according to claim 7, wherein the impact force of the opposing collision is increased by reducing the areas of the male nozzle surface and the female nozzle surface.