JP2939142B2 - Hydrocyclone equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art A cyclone body having an inversely tapered vortex chamber whose inner wall diameter gradually decreases from an upper end to a lower end, and a cyclone body at an upper end of the vortex chamber for introducing an untreated liquid. An input port provided in a tangential direction of a cross section orthogonal to a central axis of the vortex chamber, and an output port provided in an upper end portion of the vortex chamber in the central axis direction of the vortex chamber to derive a processing liquid. 2. Description of the Related Art There is known a liquid cyclone device having a discharge port provided at a lower end portion of the above-mentioned vortex chamber in a direction of a central axis of the vortex chamber in order to discharge a effluent containing the deposited sediment. According to this, the untreated liquid is caused to flow tangentially into the upper end of the vortex chamber to generate a vortex, and the centrifugal force generated by the vortex causes the separation of the precipitate contained in the untreated liquid to be efficient. For good practice, the processing liquid containing no precipitate is discharged from the output port, and the precipitate is discharged from the discharge port as a discharge liquid.

[0003] In the above-mentioned liquid cyclone apparatus, the processing accuracy of the size of foreign matter contained in the processing liquid to be led out is less than several microns, and the discharge liquid is reduced as much as possible to reduce the size of the unprocessed liquid. Processing efficiency of increasing the ratio of the obtained processing liquid is required.

[0004]

However, in the conventional hydrocyclone device, a plurality of cyclone bodies are arranged side by side.
When connected in series, the inflow pressure at the input port of each cyclone body
And the processing accuracy of the hydrocyclone equipment varies.
There was a drawback of sticking.

The present invention has been made in view of the above circumstances, and has as its object the purpose of the present invention .
For liquid cyclone equipment with multiple cyclone bodies
The inlet pressure of the input port of each cyclone
To reduce variations in processing accuracy due to
And there.

[0006]

[0007]

Means for Solving the Problems The present invention has been made based on such knowledge, and the gist of the invention is as follows.
A plurality of cyclone bodies connected in parallel with an inverted tapered vortex chamber having an upper end wall closing the upper end, and having a diameter of the inner wall surface gradually decreasing from the upper end toward the lower end, and into the vortex chamber Cyclone to introduce untreated liquid
An input port provided in the tangential direction of the cross section perpendicular to its inside mandrel at the upper end of the down body, an output port provided at the center position of the upper wall to derive the process liquid from the vortex chamber, separated swirl chamber effluents containing precipitate that
At the lower end of the cyclone body to derive from
Plurality in hydrocyclone apparatus and a discharge port provided in the center axis direction, which is the parallel connection Te
The inflow pressure of the untreated liquid flowing into the cyclone body
The pressure equalizing line forming a closed circuit for
It is provided in the input port of the cyclone body.

[0008]

In this manner, the parallel connection is achieved.
Of the untreated liquid flowing into the multiple cyclones
The pressure equalizing line that constitutes a closed circuit for equalizing the inflow pressure is
Provided, the number of cyclone units connected in parallel
The inflow pressure of the untreated liquid in each cyclone
Since the pressure is equalized, the processing accuracy of the hydrocyclone
Fluctuation is reduced.

[0009]

Here, preferably, a liquid cyclone device having a plurality of the cyclone bodies connected in parallel to each other is constituted, and the cyclone bodies are fixed inside each other and are arranged in one direction at the same arrangement interval. A plurality of fixed frames, a plurality of connection members respectively connected to the input ports of the cyclone main body, each having a pair of connection ports opened in a direction parallel to the arrangement direction of the fixed frames, and a connection member adjacent to each other And connection pipes that connect the input ports to each other by fitting both ends to the connection ports facing each other. If you do this,
The advantage that the processing capability is enhanced while the processing accuracy and processing efficiency are maintained, and the connection of the input ports can be easily performed by the connection members and the connection pipes regardless of the number of arrangements, simply by arranging the fixed frames in one direction. There is.

[0011]

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a hydrocyclone apparatus 10 according to one embodiment of the present invention will be described in detail with reference to the drawings.

FIGS. 1 and 2 show a hydrocyclone apparatus 1.
0 shows the front and side views. In the figure, a plurality (three in this embodiment) of fixed frames 12 of the same size, each of which has a cyclone body 30 described later shown in FIGS. 3 and 4 fixed inside, are mutually adjacent on a common base 14. In this state, they are arranged and fixed at the same interval in one direction.

A cutting machine for performing a cutting process using a cutting tool such as a tool, a drill, a milling machine, a grinding machine for performing a grinding process using a grindstone, and a polishing process for using a free abrasive grain and a polishing plate. An untreated liquid refluxed from a processing machine 16 using an aqueous coolant or an oil-based coolant at the time of processing, such as a polishing machine, flows into an untreated liquid tank 20 via a precipitation tank 18 and is fed to the liquid cyclone apparatus 10 by a first pump 22. Pumped. The processing liquid from which precipitates such as chips, chips, and crushed abrasive grains have been separated by the hydrocyclone device 10 is stored in a processing liquid tank 24, pumped again by the second pump 26 to the processing machine 16, and used there. You.
The effluent containing the sediment discharged from the hydrocyclone apparatus 10 is filtered after the sediment is removed through the filter 28.
The liquid is 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 having a reverse tapered shape such that the outer diameter decreases toward the lower end. Outer peripheral wall 32 and outer peripheral wall 32
An upper end wall 34 for closing the upper end of the base member is formed by molding using, for example, MC nylon resin. In 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 to the lower end. The cyclone body 30 has an input provided at the upper end of the outer peripheral wall 32 of the cyclone body 30 in a tangential direction of a cross section orthogonal to the center axis of the cyclone body 30 in order to introduce the untreated liquid into the vortex chamber 36. A port 38, an output port 40 provided at the center of the upper end wall 34 of the cyclone body 30 for discharging the processing liquid from the vortex chamber 36, and a discharged liquid containing separated sediment is discharged from the vortex 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 of the fixed frames 12, is connected to an input port 38 via an 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
A connection block 50 having a pair of connection ports 48, 48 communicating with 8 is fixed by bolts 52, respectively, and is located at equal intervals from each other. Both ends of the connection pipe 54 are fitted into the connection ports 48 of the connection blocks 50 adjacent to each other, and the input ports 38 are connected to each other. O-ring 5 on the inner peripheral surface of each connection port 48
6 is fitted, and the two ends of the connection pipe 54 are simply fitted into each other, so that the connection is made liquid-tight.

A pair of outwardly-facing connection ports 48 of the connection block 50 located at both ends of the connection block 50 in the arrangement direction of the fixed frame 12 have a pipe connection formed with a female screw for connection to a pipe. Adapter 58 is bolt 60
, And both ends of a pressure equalizing pipe 62 that is connected to the first pump 22 and guides the untreated liquid are connected to the pipe connection adapters 58, respectively. Thereby, the inflow pressure of the unprocessed liquid flowing into the cyclone body 30 is made more uniform.

On the upper surface of each fixed frame 12, a connection flange 66 liquid-tightly connected to the output port 40 of the cyclone body 30 is fixed.
6 includes a connection flange 70 fixed to the output connection pipe 68.
Are fitted in a liquid-tight manner by bolts 72, whereby the output ports 40 of the cyclone bodies 30 are connected to each other. The output connection pipe 68 has a through hole 74 formed in a side surface of a square pipe material, the connection flange 70 is welded so as to coincide with the through hole 74, and connected to a pipe at both end surfaces of the square pipe material. Are formed by welding a pair of end face plates 76 each having a female screw. The processing liquid tank 24 is provided on the pair of end face plates 76.
Are connected to both ends of a pressure equalizing conduit 78 that guides the processing liquid. Thereby, the pressure derived from the cyclone body 30 is made more uniform.

At the upper end of the cyclone body 30, a cylindrical projection 80 is formed projecting inward in the axial direction to straighten the vortex.
A 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. Treatment liquid side orifice 82 is, for example, a cylindrical member made of stainless steel, the output port 4 in and one end has an inner diameter D _U which substantially determines the aperture diameter of the output ports 40
It has a large-diameter portion provided with a male screw screwed into a female screw on the inner peripheral surface of the No. 0. When the output connection 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. I can do it.

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

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

In the liquid cyclone apparatus 10 configured as described above, when the unprocessed liquid is pressure-fed from the first pump 22 and introduced into the input port 38 of the cyclone body 30, the input port 38 is connected to the cyclone body 30. By being formed in the tangential direction of the outer peripheral wall 32 in the axial cross section, a vortex is generated in the vortex chamber 36, so that centrifugal force acts on the vortex. For this reason, the sediment having a high specific gravity receives centrifugal force toward the outer peripheral side and also receives downward gravitational force, and is separated toward the inner wall surface of the outer peripheral wall 32 and moved downward. As a result, since the central portion of the vortex chamber 36 is occupied by the liquid containing substantially no sediment, the processing liquid is obtained by drawing the liquid from the central portion of the vortex chamber 36 through the output port 40.

The precipitate contained in the processing solution is located at a position where the force in the flow direction of the processing solution and the centrifugal force are balanced by viscous resistance. as shown, since the diameter of the precipitates 100 as away from the center of the vortex is increased, the diameter of the diameter D _u and the discharge port 42 of the magnitude of the output port 40 of the precipitates 100 included in the processing liquid derived It is determined by the D _D. Why the diameter D _D of the discharge port 42 is concerned,
If green liquor is constant introduced by the first pump 22, the output port 40 by the diameter D _D of the discharge ports 42
Since the flow rate of the processing liquid amount derived from is changed,
This is because the force in the flow direction of the processing liquid changes. For this reason, in the present embodiment, as shown in Table 1, the processing liquid side orifice 82 and the discharge liquid side orifice 90 are replaced with different diameters depending on the application, without replacing the cyclone body 30. Processing accuracy and processing efficiency suitable for the application can be obtained. 6, 7,
And 8, for each by exchanging the output port 40 and exhaust port 42 such that the diameter D _u and diameter D _D shown in Table 1 is obtained, cutting cyclone, polishing cyclone, as a precision type cyclone It shows the processing accuracy when there is.

[0024]

[Table 1]

As described above, according to this embodiment, the processing for determining the ratio between the amount of the processing liquid discharged from the vortex chamber 36 and the amount of the discharge liquid discharged from the vortex chamber 36 is determined. Liquid side orifice 82 and discharge side orifice 90
But since detachably provided to the output port 40 and exhaust port 42, the treatment liquid side orifice 82
And the discharge side orifice 90 has a different diameter depending on the application.
By changing the particle size of foreign matter contained in the processing liquid to be derived, it is possible to easily change the foreign matter removal performance, and at the same time, reduce the discharge amount of the discharged liquid to the foreign matter removal performance. It can be a suitable optimal amount,
High processing efficiency can be obtained. As described above, even for processing liquids having different processing performances and processing efficiencies, the processing liquid side orifice 82 and the discharge liquid side orifice 9 prepared in advance are used.
Since it can be dealt with only by replacing the cyclone with one having a predetermined diameter of 0, there is no need to replace the cyclone body 30 or change the piping, so that it is easy to change the processing liquid having different processing performance and processing efficiency. Not only can it be performed, but a relatively large space and management for storing a plurality of types of cyclone bodies are not required.

Further, according to the present embodiment, there is provided a liquid cyclone apparatus 10 having three cyclone bodies 30 connected in parallel with each other, wherein the cyclone bodies 30 are respectively fixed inside, and are arranged in one direction at the same arrangement interval. A plurality of connection blocks 50 each having a pair of 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 connection pipe 54 that connects the input ports 38 to each other by fitting both ends to opposing connection ports 48 of the connection block 50 adjacent to each other. Therefore, while the processing accuracy and the processing efficiency are maintained, the processing capacity is enhanced, and the connection of the input ports 38 by the connection block 50 and the connection pipe 54 is limited by the arrangement number of the fixed frames 12 only in one direction. However, there is an advantage that it can be easily performed.

Further, according to the present embodiment, the connection ports 48 of the connection blocks 50 located at both ends in the arrangement direction of the fixed frames 12 of the connection blocks 50 are connected to each other, whereby each cyclone is connected. An equalizing line 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 bodies 30 is increased, the introduction pressures of the input ports 10 of the respective cyclone bodies 30 are equalized, so that variations in processing accuracy are reduced as much as possible.

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.

[0029]

In the above-described embodiment, the connection block 50, the connection pipe 54 and the output connection pipe 68 are used, but ordinary pipes may be used.

[0031]

Although not specifically exemplified, the present invention can be embodied in various modified and improved forms based on the knowledge of those skilled in the art.

[Brief description of the drawings]

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

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

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

FIG. 4 is a front view of the embodiment of FIG. 1 and is an enlarged view with a part cut away for explanation.

FIG. 5 is a diagram illustrating the relationship between the processing operation of the embodiment of FIG. 1 and the orifice diameter.

FIG. 6 is a diagram showing the processing performance of the embodiment of FIG. 1;

FIG. 7 is a diagram showing the processing performance of the embodiment of FIG. 1;

FIG. 8 is a diagram showing the processing performance of the embodiment of FIG. 1;

[Explanation of symbols]

 10: Liquid cyclone device 12: Fixed frame 30: Cyclone main 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: Equalizing pipe 82: Processing liquid side orifice 90: Drainage liquid orifice

Continuation of front page (72) Inventor Yukiya Kondo 3-36 Noritake Shinmachi, Nishi-ku, Nagoya City, Aichi Prefecture Noritake Co., Ltd. (56) References JP-A-63-305954 (JP, A) Akira Mikai 58-119854 (JP, U) Actually open 57-119752 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B04C 5/02 B04C 5/12 B04C 5/28

Claims (2)

(57) [Claims] [Claim 1 further comprising an upper wall closing the upper end of the plurality of diameters of the inner wall is connected in parallel with a reverse-tapered vortex chamber gradually decreases toward the lower portion from the upper end <br / A cyclone body, an input port provided in the upper end portion of the cyclone body in a tangential direction of a cross section orthogonal to its central axis for introducing an untreated liquid into the vortex chamber, and a processing liquid derived from the vortex chamber. An output port provided at a center position of the upper end wall, and a lower end portion of the cyclone main body provided at a lower end portion of the cyclone main body in a direction of a central axis thereof to lead a discharged liquid containing separated sediment from the swirl chamber. A hydrocyclone device having a discharge port, wherein the liquid flows into the plurality of cyclone bodies connected in parallel.
A closed circuit to equalize the inflow pressure of untreated liquid
To the input ports of the plurality of cyclone bodies.
And a liquid cyclone device provided in the device. 2. A plurality of fixed frames fixed to the inside of each of the plurality of cyclone bodies connected in parallel to each other and arranged in one direction at the same arrangement interval, Connected to each input port,
A plurality of connecting members each having a pair of connecting ports opened in a direction parallel to the arrangement direction of the fixed frame, and both ends are respectively fitted to opposing connecting ports of adjacent connecting members. The liquid cyclone device according to claim 1 , further comprising: a connection pipe connecting the input ports to each other.