JPH08141444A - Liquid cyclone - Google Patents

Abstract

PURPOSE: To provide a liquid cyclone in which treated liquids of different treating performance and treating efficiency are easily changed. CONSTITUTION: Since a treated liquid side orifice 82 and a discharged liquid side orifice 90 for determining a ratio of the lead quantity of treated liquid led out from a vortex chamber 36 to the discharged quantity of discharged liquid discharged from the vortex chamber 36 are attachably and detachably installed in an output port 40 and a discharge port 42 respectively, treating performance is easily changed, and also the discharged quantity of the discharged liquid at that time is made an optimum quantity suitable for foreign matter removal performance, thereby high treating efficiency is obtained. Even for treated liquids of different treating performance and treating efficiently, by replacing the treated liquid side orifice 82 and the discharged liquid side orifice 90 only, the situation is coped with. As a result, the replacement of a cyclone body and the change of piping are not required, and the relative large space and control for keeping the cyclone bodies of plural kinds are not required.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydrocyclone device for separating and treating a precipitate contained in an untreated liquid by utilizing centrifugal force generated by a vortex flow.

[0002]

2. Description of the Related Art A cyclone body having an inversely tapered vortex chamber in which the diameter of the inner wall surface gradually decreases from the upper end to the lower end, and at the upper end of the vortex chamber for introducing untreated liquid The input port provided in the tangential direction of the cross section orthogonal to the central axis of the swirl chamber and the output port provided in the central axis direction of the swirl chamber at the upper end of the swirl chamber for leading out the treatment liquid are separated from each other. A liquid cyclone device is known which is provided with a discharge port provided in the lower end portion of the swirl chamber in the central axis direction of the swirl chamber in order to discharge the discharged liquid containing the deposited precipitate. According to this, the untreated liquid is caused to flow tangentially into the upper end of the swirl chamber to generate a vortex, and the centrifugal force generated by the vortex effectively separates the precipitate contained in the untreated liquid. Since it is often performed, the treatment liquid containing no precipitate is discharged from the output port, and the precipitate is discharged from the discharge port as discharge liquid.

In the liquid cyclone apparatus as described above, the processing accuracy such as the size of the foreign matter contained in the discharged processing liquid is less than a micron, and the discharged liquid is reduced as much as possible from the unprocessed liquid. Treatment efficiency of increasing the ratio of the obtained treatment liquid is required.

[0004]

However, in the conventional liquid cyclone device, various processing precisions and processing efficiencies are obtained by changing the height and diameter of the cyclone main body. Therefore, for example, a coolant for cutting. As in the case of changing from the process of No.1 to the process of grinding coolant, provide a cyclone body with a shape that optimizes the processing accuracy and processing efficiency according to the type of unprocessed liquid, and connect according to the size of the cyclone body. It was necessary to change the piping, and when changing the processing liquid, complicated switching work and relatively large man-hours were required. In addition, a plurality of types of cyclone main bodies must be prepared in advance, which requires a relatively large storage space and is complicated to manage.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a liquid cyclone device capable of easily changing a processing liquid having different processing performance and processing efficiency. Especially.

As a result of various researches aimed at achieving the above-mentioned object, the present inventors have found the fact that the diameter of the output port of the cyclone body determines the processing accuracy in the non-turbulent state.

[0007]

The present invention was made on the basis of such findings, and the gist thereof is as follows.
A cyclone body having an inversely tapered vortex chamber in which the diameter of the inner wall surface gradually decreases from the upper end to the lower end, and the central axis of the vortex chamber at the upper end of the vortex chamber for introducing untreated liquid. An input port provided in a tangential direction of a cross section orthogonal to the above, an output port provided in the central axis direction of the swirl chamber at the upper end of the swirl chamber to guide the treatment liquid, and a separated precipitate. In a liquid cyclone device having a discharge port provided in the lower end portion of the swirl chamber in the central axis direction of the swirl chamber in order to derive the discharged liquid, the amount of the treatment liquid discharged from the swirl chamber and The orifices for determining the ratio of the amount of the discharged liquid discharged from the swirl chamber to the output port and the discharge port are detachably provided.

[0008]

With this configuration, orifices for determining the ratio of the amount of the processing liquid discharged from the swirl chamber to the amount of the discharge liquid discharged from the swirl chamber are provided at the output port and the discharge port. Since they are detachably attached, the particle size of the foreign matter contained in the derived processing liquid can be easily selected, the foreign matter removal performance can be easily changed, and at the same time the amount of discharged liquid discharged at that time can be removed. Since the optimum amount suitable for performance can be obtained, high processing efficiency can be obtained.

[0009]

Therefore, according to the present invention, it is possible to deal with processing solutions having different processing performances and processing efficiencies simply by replacing the orifices, so that it is not necessary to replace the cyclone body or change the piping. Therefore, it is possible to easily change the processing liquid having different processing performance and processing efficiency.
Moreover, there is an advantage that a relatively large space for storing a plurality of types of cyclone main bodies and management are unnecessary.

Here, preferably, a liquid cyclone device having a plurality of the cyclone main bodies connected in parallel to each other is constructed, and the cyclone main bodies are respectively fixed to the inner side and arranged in one direction at the same arrangement interval. A plurality of fixing members, a plurality of connecting members respectively connected to the input ports of the cyclone body, and a plurality of connecting members each having a pair of connecting ports opened in a direction parallel to the arrangement direction of the fixing frames, and connecting members adjacent to each other. A connecting pipe for connecting the input ports to each other by fitting both ends into the connecting ports facing each other. If you do this,
While the processing accuracy and efficiency are maintained and the processing capacity is increased, the connection members and the connection pipes can easily connect the input ports to each other regardless of the number of the arrangements by arranging the fixed frame in one direction. There is.

[0012] Preferably, among the connection members, the connection members located at both ends in the arrangement direction of the fixed frame are connected to each other at outward connection ports so that the connection members do not flow into each cyclone body. A pressure-equalizing conduit that forms a closed circuit for equalizing the inflow pressure of the processing liquid is provided. By doing so, even if the number of parallel connections of the cyclone main body increases, the introduction pressure of the input port of each cyclone main body is made uniform, so that the variation in processing accuracy is minimized.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A hydrocyclone device 10 according to an embodiment of the present invention will be described in detail below with reference to the drawings.

1 and 2 show a liquid cyclone device 1
0 front and side views are shown. In the figure, a plurality of (three in this embodiment) fixed frames 12 of the same size, each having a cyclone main body 30 described later shown in FIGS. 3 and 4 fixed therein, are adjacent to each other on a common mount 14. In this state, they are arranged and fixed in one direction at the same intervals.

A cutting machine for cutting with a cutting tool such as a bite, a drill, and a milling machine, a grinding machine for grinding with a grindstone, and a polishing process with free abrasive grains and a polishing plate. The untreated liquid refluxed from the processing machine 16 that uses an aqueous coolant or an oil-based coolant for processing, such as a polishing processing machine, flows into the unprocessed liquid tank 20 via the precipitation tank 18, and is transferred to the liquid cyclone device 10 by the first pump 22. Pumped. The treatment liquid from which precipitates such as chips, chips, and crushed abrasive grains have been separated by the liquid cyclone device 10 is stored in the treatment liquid tank 24, and is pumped again to the processing machine 16 by the second pump 26 to be used there. It
The discharged liquid containing the precipitate discharged from the liquid cyclone device 10 is filtered through the filter 28 to remove the precipitate,
It is adapted to be returned into the untreated liquid tank 20.

As shown in detail in FIGS. 3 and 4, the cyclone body 30 fixed in each of the fixed frames 12 has a cylindrical shape of an inverse taper whose outer diameter becomes smaller toward the lower end. Outer peripheral wall 32 and its outer peripheral wall 32
Has an upper end wall 34 that closes the upper end portion of, and is configured by molding using, for example, MC nylon resin. Inside the cyclone body 30, there is provided an inverted conical vortex chamber 36 in which the diameter of the inner wall surface gradually decreases from the upper end toward the lower end. The cyclone body 30 has an input provided in the tangential direction of the cross section orthogonal to the central axis of the cyclone body 30 at the upper end of the outer peripheral wall 32 of the cyclone body 30 in order to introduce the untreated liquid into the swirl chamber 36. A port 38, an output port 40 provided at a central position of the upper end wall 34 of the cyclone body 30 for discharging the treatment liquid from the swirl chamber 36, and a discharge liquid containing the separated precipitate are discharged from the swirl chamber 36. For this purpose, a discharge port 42 is provided at the lower end of the cyclone body 30 in the direction of its central axis.

The front surface, which is one side surface of each fixed frame 12, is connected to the input port 38 through the input port connecting pipe 46 and is coaxial with one axis parallel to the arrangement direction of the fixed frames 12. Input port 3 located
Connection blocks 50 having a pair of connection ports 48, 48 communicating with 8 are fixed by bolts 52 and are located at equal intervals. Both ends of the connection pipe 54 are fitted into the connection ports 48 of the connection blocks 50 that are adjacent to each other, and the input ports 38 are connected to each other. An O-ring 5 is provided on the inner peripheral surface of each connection port 48.
6 is fitted, and both ends of the connecting pipe 54 are simply fitted to be liquid-tightly connected.

A pipe connection in which a female screw for connecting to a pipe is formed at a pair of outward-facing connection ports 48 of the connection block 50 at both ends of the connection block 50 in the arrangement direction of the fixed frame 12. Adapter 58 is bolt 60
The pipe connection adapters 58 are connected to both ends of a pressure equalizing pipe line 62 that is connected to the first pump 22 to guide the untreated liquid. This makes the inflow pressure of the untreated liquid flowing into the cyclone body 30 more uniform.

A connection flange 66, which is fluid-tightly connected to the output port 40 of the cyclone body 30, is fixed to the upper surface of each fixed frame 12, while the connection flange 6
6, a connection flange 70 fixed to the output connecting pipe 68.
Are liquid-tightly fitted by bolts 72, so that the output ports 40 of each cyclone body 30 are connected to each other. In the output connecting pipe 68, a through hole 74 is formed on a side surface of a rectangular pipe material, the connection flange 70 is welded so as to coincide with the through hole 74, and both ends of the rectangular pipe material are connected to a pipe. A pair of end face plates 76 each having a female screw for welding are welded. The processing liquid tank 24 is provided on the pair of end plates 76.
Both ends of the pressure-equalizing conduit 78 that guides the processing liquid by being connected to are connected to each other. As a result, the pressure derived from the cyclone body 30 is further equalized.

At the upper end of the cyclone body 30, a cylindrical projection 80 is projected inward in the axial direction in order to rectify the vortex flow.
The processing liquid side orifice 82 is detachably fitted in the output port 40 by being screwed into a female screw formed on the inner peripheral surface thereof. The processing liquid side orifice 82 is, for example, a cylindrical member made of stainless steel, has an inner diameter D _U that substantially determines the opening diameter of the output port 40, and has the output port 4 at one end.
It has a large-diameter portion provided with a male screw screwed into a female screw on the inner peripheral surface of No. 0. When the output connecting pipe 68 and the connection flange 66 are removed by the bolt 72, the processing liquid side orifice 82 is exposed. Therefore, the processing liquid side orifice 82 can be easily replaced by rotating the processing liquid side orifice 82 using a predetermined rotating tool. You can do it.

On the lower surface of each fixed frame 12, a relatively short connecting pipe 8 connected for discharging the discharged liquid is provided.
4 is fixed and a short cylindrical fixing member 86 for positioning the cyclone main body 30 is fixed, while the discharge liquid side orifice 90 is the discharge port 42 of the cyclone main body 30.
Is liquid-tightly fitted with a fixing metal fitting 88, and the lower end of the discharge liquid side orifice 90 is fitted into the upper end of the fixing member 86. The discharge liquid side orifice 90
Is an inner diameter D that substantially determines the opening diameter of the discharge port 42.
It is a ceramic member provided with a through hole having _D.

The fixing member 88 is constructed such that a tightening member 94 having a V-shaped groove 92 having a V-shaped cross section is pressed in the diameter reducing direction by the operation of a tightening screw (not shown). Outer peripheral projections 96 and 98 projecting to the outer peripheral side so as to be fitted into the V-shaped groove 92 are formed at the lower end of the cyclone body 30 and the discharge liquid side orifice 90. By operating the fixing metal fitting 88, The discharge liquid side orifice 90 can be easily replaced.

In the liquid cyclone device 10 configured as described above, when the untreated liquid is pumped from the first pump 22 and introduced into the input port 38 of the cyclone main body 30, the input port 38 of the cyclone main body 30 moves. The centrifugal force acts on the swirl flow because the swirl flow is generated in the swirl chamber 36 by being formed in the tangential direction of the outer peripheral wall 32 in the axial cross section. For this reason, the precipitate having a high specific gravity is subjected to a centrifugal force toward the outer peripheral side and at the same time a downward gravity, so that it is separated toward the inner wall surface of the outer peripheral wall 32 and moved downward. As a result, since the center of the swirl chamber 36 is occupied by the liquid containing almost no precipitate, the treatment liquid can be obtained by drawing out from the center of the swirl chamber 36 through the output port 40.

The precipitate contained in the treatment liquid is located at a position where the force of the viscous resistance in the flow direction of the treatment liquid and the centrifugal force are balanced with each other. As a result, in the non-turbulent state, the precipitate is contained in the cyclone body 30 of FIG. As shown, since the diameter of the precipitate 100 increases as the distance from the center of the vortex increases, the size of the precipitate 100 contained in the processing liquid to be discharged is the diameter D _{u of the} output port 40 and the diameter of the discharge port 42. And D _D. The reason that the diameter D _D of the discharge port 42 is related is
When the untreated liquid introduced by the first pump 22 is constant, the diameter D _D of the discharge port 42 causes the output port 40
Since the flow rate of the processing liquid quantity derived from
This is because the force of the processing liquid in the flow direction changes. Therefore, in this embodiment, as shown in Table 1, the treatment liquid side orifice 82 and the discharge liquid side orifice 90 are exchanged with those having different diameters depending on the application, so that the cyclone main body 30 is not exchanged. It is possible to obtain processing accuracy and processing efficiency suitable for the application. 6, FIG.
8 and FIG. 8 are respectively used as a cutting type cyclone, a polishing type cyclone, and a precision type cyclone by exchanging the output port 40 and the discharge port 42 so that the diameter D _u and the diameter D _D shown in Table 1 can be obtained. It shows the processing accuracy when there is.

[0024]

[Table 1]

As described above, according to this embodiment, the process for determining the ratio between the amount of the processing liquid discharged from the swirl chamber 36 and the amount of the discharge liquid discharged from the swirl chamber 36. Liquid side orifice 82 and discharged liquid side orifice 90
However, since the output port 40 and the discharge port 42 are detachably provided, the particle size of the foreign matter contained in the derived processing liquid can be easily selected, and the foreign matter removing performance can be easily changed, and at the same time, Since the discharge amount of the discharged liquid at this time can be set to the optimum amount suitable for the foreign matter removal performance,
High processing efficiency can be obtained. As described above, the processing liquid side orifice 82 and the discharge liquid side orifice 9 prepared in advance are applied to the processing liquids having different processing performances and processing efficiencies.
Since it can be dealt with only by replacing with a one having a predetermined diameter of 0, there is no need to replace the cyclone main body 30 or change the piping, so that it is easy to change the processing liquid having different processing performance or processing efficiency. Not only can it be done, but it also eliminates the need for a relatively large space and management for storing multiple types of cyclone bodies.

Further, according to the present embodiment, there is provided a hydrocyclone device 10 having three cyclone main bodies 30 connected in parallel with each other, wherein the cyclone main bodies 30 are respectively fixed to the inside, and the cyclone main bodies 30 are arranged in one direction at the same arrangement intervals. A plurality of connection blocks 50 each provided with three fixed frames 12 arranged and a pair of connection ports 48 respectively connected to the input ports 38 of the cyclone body 30 and opened in a direction parallel to the arrangement direction of the fixed frames 12. And a connecting pipe 54 for connecting the input ports 38 to each other by fitting both ends into the connecting ports 48 of the connecting blocks 50 adjacent to each other. Therefore, while the processing accuracy and the processing efficiency are maintained and the processing capability is enhanced, the connection blocks 50 and the connection pipes 54 are arranged to connect the input ports 38 to each other only by arranging the fixed frames 12 in one direction. However, there is an advantage that it can be done easily.

Further, according to the present embodiment, by connecting the outward connection ports 48 of the connection blocks 50 located at both ends of the connection block 50 in the arrangement direction of the fixed frame 12 to each other, each cyclone is connected. A pressure equalizing conduit 62 is provided to form a closed circuit for equalizing the inflow pressure of the untreated liquid flowing into the main body 30. By doing so, even if the number of parallel connections of the cyclone main body 30 is increased, the introduction pressure of the input port 10 of each cyclone main body 30 is made uniform, so that the dispersion of the processing accuracy is minimized.

While the embodiment of the present invention has been described in detail with reference to the drawings, the present invention can be embodied in other forms.

For example, in the above-mentioned embodiment, the three cyclone main bodies 30 are connected in parallel, but they may be independent or may be connected in series. In the case of this series connection, the treatment liquid side orifice 82 and the discharge liquid side orifice 90 having a diameter suitable for the treatment accuracy required in each stage are selected.

Further, although the connection block 50, the connection pipe 54, and the output connection pipe 68 are used in the above-described embodiments, ordinary pipes may be used.

Further, in the above-mentioned embodiment, the pressure equalizing pipe line 62 and the pressure equalizing pipe line 78 are used, but they may not be necessarily used.

Although not illustrated one by one, the present invention can be implemented in various modified and improved modes based on the knowledge of those skilled in the art.

[Brief description of drawings]

FIG. 1 is a front view of a liquid cyclone device according to an embodiment of the present invention.

2 is a side view of the embodiment of FIG. 1. FIG.

FIG. 3 is a plan view of the embodiment of FIG. 1 and is an enlarged view with a part cut away.

FIG. 4 is a front view of the embodiment of FIG. 1, which is an enlarged view with a part cut away.

5 is a diagram for explaining the relationship between the processing action and the orifice diameter in the embodiment of FIG.

6 is a diagram showing the processing performance of the embodiment of FIG.

FIG. 7 is a diagram showing the processing performance of the embodiment of FIG.

8 is a diagram showing the processing performance of the embodiment of FIG.

[Explanation of symbols]

 10: Hydrocyclone device 12: Fixed frame 30: Cyclone body 34: Upper end wall 38: Input port 40: Output port 42: Discharge port 48: Connection port 50: Connection block (connection member) 54: Connection pipe 62: Pressure equalizing pipe line 82: Treatment liquid side orifice 90: Discharge liquid side orifice

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yukiya Kondo, Noritake Company Limited No. 1-33 No. 36, Noritake Shinmachi, Nishi-ku, Nagoya City, Aichi Prefecture

Claims (3)

[Claims] 1. A cyclone main body having an inversely tapered vortex chamber having an upper end wall that closes the upper end, and the diameter of the inner wall surface gradually decreases from the upper end toward the lower end, and the cyclone body is untreated into the vortex chamber. An input port provided at the upper end of the cyclone body in the tangential direction of a cross section orthogonal to the central axis of the cyclone main body for introducing liquid, and provided at a central position of the upper end wall for discharging the processing liquid from the swirl chamber. And a discharge port provided in the central axis direction at the lower end of the cyclone body for discharging the discharge liquid containing the separated precipitate from the swirl chamber, Orifices for determining the ratio of the amount discharged from the output port and the amount discharged from the discharge port are detachably provided to the output port and the discharge port, respectively. Hydrocyclone apparatus characterized by. 2. The hydrocyclone device according to claim 1, comprising a plurality of the cyclone main bodies connected in parallel with each other, wherein the cyclone main bodies are respectively fixed to the inner side and arranged in one direction at the same arrangement interval. Fixed frame and connected to the input port of the cyclone body,
By connecting a plurality of connection members each having a pair of connection ports opened in a direction parallel to the arrangement direction of the fixed frame, and by fitting both ends to the connection ports of the adjacent connection members facing each other, A liquid cyclone device comprising: a connecting pipe for connecting input ports to each other. 3. The untreated liquid flowing into each cyclone body by connecting both outward connection ports of the connecting members, which are located at both ends of the connecting member in the arrangement direction of the fixed frame, to each other. The liquid cyclone device according to claim 2, further comprising a pressure equalizing pipe line forming a closed circuit for equalizing the pressure.