JP2021062357A - Fine matter removal system and fine matter removal device - Google Patents

Abstract

To provide a fine matter removal system that separates and removes fine matters contained in liquid through automatic operation, collects the fine matters by removing the liquid adhering to the fine matters and allows for unmanned operation.SOLUTION: A fine matter removal system 10 includes: a centrifugal separation device 110 for separating and precipitating fine matters contained in liquid with centrifugal force; and a fine matter removal device 120 for removing the liquid adhering to the precipitated fine matters and discharging the fine matters, in a circulation path 102. The fine matter removal system drives the fine matter removal device 120 on the basis of an amount of the fine matter that is precipitated and accumulated.SELECTED DRAWING: Figure 1

Description

The present invention relates to a fine substance removing system and a fine substance removing device for separating fine substances such as fine powdery debris contained in a liquid, removing the liquid adhering to the fine substances, and recovering the fine substances.

For example, in a machining apparatus, cutting is performed while supplying cutting fluid from a supply tank, and the cutting fluid contains cutting debris in the form of fine powder. The cutting fluid containing the fine powder cutting debris is supplied to the filter device, the cutting debris is removed by the filter device, and the cutting fluid is returned to the supply tank (for example, Patent Document 1).

As such a filter device, for example, a filter film is used to remove cutting debris, and a settling is used to remove cutting debris. In each case, a small amount of fine powder-like cutting debris contained in a cutting fluid is removed. There is a problem that it cannot be reliably removed in a short time.

In addition, the filter film may be clogged, and if it is clogged, the filter device must first be disassembled and the filter film must be cleaned. If this cleaning work or becomes unusable, replacement work will occur. Further, when the filter membrane is used repeatedly, the filtration accuracy is deteriorated and the filter membrane is easily clogged. Therefore, most of the filter membranes are disposable filter membranes, and there is a problem that the cost is high.

Japanese Unexamined Patent Publication No. 2001-137734

In this way, in a configuration that removes cutting debris with a filter film in a fine substance removal system, cleaning work and replacement work of the filter film are required, and fine powder debris contained in the liquid due to unmanned automatic operation, etc. It was difficult to separate the fine matter and remove the liquid adhering to the fine matter to recover the fine matter.

The present invention has been made in view of such circumstances, and is unmanned by separating and removing fine substances contained in the liquid by automatic operation, removing the liquid adhering to the fine substances, and recovering the fine substances. It is an object of the present invention to provide a fine substance removing system and a fine substance removing device that enable operation.

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

The invention according to claim 1 is an apparatus for processing or processing using a liquid.
A storage tank that stores liquids for processing or processing,
A circulation path for supplying a liquid from the storage tank to the device and returning the liquid from the device to the storage tank for circulation.
In the circulation path,
A centrifuge that separates and precipitates fine substances contained in the liquid by centrifugal force,
A fine substance removing device that removes the liquid adhering to the precipitated fine substances and discharges the fine substances.
A fine material detection device that detects the amount of fine material accumulated by precipitation, and
The fine substance removing system is characterized by comprising a control device for controlling the fine substance removing device based on the detected fine substance amount.

The invention according to claim 2 comprises a settling portion for accumulating fine matter to be settled.
The fine quantity detection device is
The fine substance removing system according to claim 1, wherein the amount of fine substances accumulated in the settling portion is detected.

According to the third aspect of the present invention, the fine substance removing device is provided with the fine substance amount detecting device.
The fine quantity detection device is
The fine substance removing system according to claim 1, wherein the amount of fine substances accumulated in the fine substance removing device is detected.

The invention according to claim 4 is the fine substance removing system according to any one of claims 1 to 3, wherein a plurality of the fine substance removing devices are connected in series. ..

The invention according to claim 5 includes a cleaning circuit for cleaning the settling portion and the fine substance removing device in the circulation path.
The control device is characterized in that, after discharging the fine matter from the settling portion and the fine matter removing device, the cleaning circuit is driven to clean the settling portion and the fine matter removing device. The fine substance removing system according to any one of claims 4.

The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein the settling portion is directly connected and integrated on the upstream side of the fine substance removing device. It is a fine substance removal system.

The invention according to claim 7 includes an introduction passage for guiding the precipitated fine matter to the fine matter removing device.
The introduction passage is provided with the sedimentation portion.
The fine matter removing system according to any one of claims 1 to 6, wherein the fine matter amount detecting device detects the fine matter amount accumulated in the settling portion.

In the invention according to claim 8, the upstream side of the settling portion is
A path leading to the device via the first automatic valve,
Includes a second automatic valve and a path leading to the device through the centrifuge in sequence.
The downstream side of the sedimentation part is
A path leading to the fine substance removing device via a third automatic valve,
Including
By the control of the control device
In normal operation, the first automatic valve is closed, the second automatic valve is opened, the third automatic valve is closed, and fine substances are accumulated in the settling portion.
The discharge operation closes the second automatic valve, opens the third automatic valve, discharges fine substances accumulated in the settling portion, and then opens the first automatic valve, and opens the settling portion and the third. The automatic valve is cleaned and the fine substances that cannot be discharged are discharged to the fine substance removing device.
The return to the normal operation is characterized in that the first automatic valve is closed, the second automatic valve is opened, the third automatic valve is closed, and fine substances are accumulated in the settling portion. The fine substance removing system according to any one of claims 2 to 7.

According to the invention of claim 9, the fine substance removing device is
A cylindrical housing unit that stores fine objects to which liquid has adhered,
A screw shaft that is arranged in the axial direction inside the cylindrical housing portion and discharges the fine material by rotation,
Including a driving means for rotationally driving the screw shaft,
The liquid adhering to the fine object is removed by the rotation of the screw shaft, and the liquid is removed.
The fine substance removing system according to claim 1 to 8, wherein the fine substance from which the liquid has been removed is discharged from the cylindrical housing portion.

The invention according to claim 10 is provided with a throttle portion on the discharge side of the cylindrical accommodating portion.
Cover the throttle with a stopper and
The stopper is always urged in the closing direction by the urging means, and the stopper is always urged in the closing direction.
The fine substance removing system according to claim 9, wherein the stopper is pushed by a fine substance discharged from the cylindrical accommodating portion, and the throttle portion can be opened and closed.

According to the eleventh aspect of the present invention, a discharge cylinder is connected to the discharge side of the cylindrical housing portion.
The discharge cylinder has a discharge opening that opens above the cylindrical housing portion.
The fine substance removing system according to claim 9, wherein the fine substance discharged from the cylindrical accommodating portion can be discharged from the discharge opening of the discharge cylinder.

The invention according to claim 12 is connected to a centrifuge device that separates and precipitates fine substances contained in a liquid by centrifugal force, or a precipitation portion that collects the separated fine substances, and removes the liquid adhering to the fine substances. It is a fine substance removing device that discharges fine substances.
A cylindrical housing unit that stores fine objects to which liquid has adhered,
A screw shaft that is arranged in the axial direction inside the cylindrical housing portion and discharges the fine material by rotation,
Including a driving means for rotationally driving the screw shaft,
The liquid adhering to the fine object is removed by the rotation of the screw shaft, and the liquid is removed.
It is a fine substance removing device characterized by discharging the fine substance from which the liquid has been removed from the cylindrical accommodating portion.

The invention according to claim 13 is provided with a throttle portion on the discharge side of the cylindrical accommodating portion.
Cover the throttle with a stopper and
The stopper is always urged in the closing direction by the urging means, and the stopper is always urged in the closing direction.
The fine substance removing device according to claim 12, wherein the stopper is pushed by a fine substance discharged from the cylindrical accommodating portion, and the throttle portion can be opened and closed.

In the invention according to claim 14, a discharge cylinder is connected to the discharge side of the cylindrical housing portion.
The discharge cylinder has a discharge opening that opens above the cylindrical housing portion.
The fine substance removing device according to claim 12, wherein the fine substance discharged from the cylindrical accommodating portion can be discharged from the discharge opening of the discharge cylinder.

The invention according to claim 15 is connected to a centrifuge device that separates and precipitates fine substances contained in a liquid by centrifugal force, or a precipitation portion that collects the separated fine substances, and removes the liquid adhering to the fine substances. It is a fine substance removing device that discharges fine substances.
A screw shaft that discharges the fine objects by rotation,
A laterally arranged fine object removing unit including a driving means for rotationally driving the screw shaft, and
A cylindrical housing unit that stores fine objects to which liquid has adhered,
A screw shaft that is arranged in the axial direction inside the cylindrical housing portion and discharges the fine material by rotation,
A drive means for rotationally driving the screw shaft, and an obliquely arranged fine object removing portion including the screw shaft are provided.
By driving the laterally arranged fine object removing unit and driving the diagonally arranged fine object removing unit,
The fine matter is sent from the laterally arranged fine matter removing portion to the diagonally arranged fine matter removing portion.
It is a fine substance removing device characterized by removing a liquid from the diagonally arranged type fine substance removing part and discharging the fine substance.

In the invention according to claim 16, the diagonally arranged fine object removing portion is
Equipped with a fine substance discharge rail that discharges fine substances from which liquid has been removed
The fine substance removing device according to claim 15, wherein the fine substance discharging rail has a configuration in which the position of the discharging port can be changed.

In the invention according to claim 17, the screw axial direction of the diagonally arranged fine object removing portion is
The fine substance removing device according to claim 15 or 16, wherein the angle can be changed with the screw shaft center of the laterally arranged fine substance removing portion as a fulcrum.

With the above configuration, the present invention has the following effects.

According to the first to eleventh aspects of the invention, by driving the fine substance removing device based on the amount of fine substances accumulated by precipitation, the fine substances contained in the liquid are separated and removed by automatic operation and adhered to the fine substances. Unmanned operation is made possible by removing the liquid to be collected and collecting fine substances.

In the invention according to claim 12 to 17, the liquid is connected to a centrifugal separator that separates and precipitates fine substances contained in a liquid by centrifugal force, or a precipitation portion that collects the separated fine substances, and adheres to the fine substances. The fine substance removing device that removes the liquid and discharges the fine substance can separate and remove the fine substance contained in the liquid, remove the liquid adhering to the fine substance, and recover the fine substance.

It is a figure which shows the fine matter removal system of Embodiment 1. FIG. It is a figure which shows the fine matter removal system of Embodiment 2. It is a figure which shows the fine substance removal system of Embodiment 3. It is a figure which shows the fine matter removal system of Embodiment 4. It is a figure which shows the fine matter removal system of Embodiment 5. It is a figure explaining the micro physical quantity detection apparatus. It is a principle diagram explaining the detection of a minute substance. It is a figure which shows the case where the minute substance is not detected. It is a figure which shows the case of detecting the fine quantity. It is a flow chart which shows the detection of the minute material quantity. It is a figure which shows the fine physical quantity detection apparatus of another form. It is sectional drawing of the fine matter removing apparatus. It is a figure which shows the state which removes a fine substance. It is a figure which shows the fine matter removing apparatus of another form. It is a figure which shows the fine matter removing apparatus of another form. It is a front view which shows the fine matter removing apparatus. It is a top view which shows the fine matter removing apparatus. It is a perspective view which shows the fine matter removing apparatus. It is a figure which shows the structure which can change the position of a discharge port. It is a figure which shows the structure which can change the angle with the center of a screw shaft as a fulcrum.

Hereinafter, embodiments of the fine substance removing system and the fine substance removing device of the present invention will be described in detail with reference to the drawings, but the present invention is not limited to this embodiment.

The fine substance removal system of the present invention is used for collecting fine substances such as raw materials for pharmaceuticals, chemicals, foods and beverages, and for collecting fine substances such as cutting powder of automobiles, machine tools and processing industries, and for each factory and water. It is used for filtering circulating water and wastewater for treatment, for removing fine substances such as impurities such as semiconductors and biotechnology, and for removing fine substances that are foreign substances such as cleaning water and solvents. Widely used for separating and removing things.

(Embodiment 1)
The first embodiment is shown in FIG. FIG. 1 is a diagram showing a fine substance removal system.

The fine substance removing system 10 of this embodiment has an apparatus 100 for processing or processing using a liquid, a storage tank 101 for storing a liquid to be used for processing or processing, and a liquid from the storage tank 101 to the apparatus 100. A circulation path 102, which is supplied and returned from the device 100 to the storage tank 101 for circulation, is included, and the liquid is circulated by driving the pump 103.

The circulation path 102 includes a centrifugal separator 110 that separates and precipitates fine substances contained in the liquid by centrifugal force, and a fine substance removing device 120 that removes the liquid adhering to the precipitated fine substances and discharges the fine substances. , Equipped with.

The centrifugal separator 110 has a well-known configuration, and separates fine substances from a liquid containing fine substances by centrifugal force, and the separated fine substances settle and accumulate in the settling portion 111. In this embodiment, the settling portion 111 is composed of a cup formed of resin, metal, or the like.

The control device 113 includes a fine material detection device 112 for detecting the fine material accumulated by precipitation and a control device 113 for driving the fine material removal device 120 based on the detected fine material, and the control device 113 is a precipitation unit detected by the fine material detection device 112. Based on the amount of fine matter accumulated in 111, the fine matter removing device 120 is driven. The fine material detection device 112 is provided in the precipitation section 111.

A second automatic valve 114a is provided on the entrance side of the settling portion 111, and a third automatic valve 114b is provided on the exit side, each of which is controlled by the control device 113. In the normal operation, the second automatic valve 114a is opened and the third automatic valve 114b is closed, and the separated fine matter settles and accumulates in the settling portion 111. When the amount of fine matter accumulated in the settling portion 111 reaches a predetermined amount, the second automatic valve 114a is closed, the third automatic valve 114b is opened, and the fine matter accumulated in the settling portion 111 is discharged.

The fine material detection device 112 detects the fine material accumulated in the precipitation portion 111, and the control device 113 is based on the fine material amount detected from the fine material detection device 112.
The second automatic valve 114a is closed, the third automatic valve 114b is opened, the fine matter accumulated in the settling portion 111 is sent to the fine matter removing device 120, the fine matter removing device 120 is driven, and the fine matter is adhered to the precipitated fine matter. The liquid is removed and the fine matter is discharged, the fine matter is collected in the collection container 61, and the removed liquid returns to the storage tank 101.

In this embodiment, the circulation path 102 includes a centrifugal separator 110 that separates and precipitates fine substances contained in the liquid by centrifugal force, and fine particles that remove the liquid adhering to the precipitated fine substances and discharge the fine substances. The fine material removing device 120 is provided, and the fine material removing device 112 detects the fine material accumulated in the settling portion 111, and the control device 113 detects the fine material amount detected from the fine material detecting device 112. By driving and removing the liquid adhering to the precipitated fine matter and discharging the fine matter, the fine matter contained in the liquid is separated and removed by automatic operation, and the liquid adhering to the fine matter is removed. Unmanned operation is possible by collecting fine objects.

In this embodiment, a second automatic valve 114a is provided on the entry side of the settling portion 111 so as to close the fine matter accumulated in the settling portion 111 when it is sent to the fine matter removing device 120. The fine matter may be stored in the settling portion 111 without the valve 114a and sent to the fine matter removing device 120. The types of the second automatic valve 114a and the third automatic valve 114b are not particularly limited.

(Embodiment 2)
The second embodiment is shown in FIG. FIG. 2 is a diagram showing a fine substance removal system.

In the fine substance removing system 10 of this embodiment, the same configurations as those of the first embodiment are designated by the same reference numerals, and the description thereof will be omitted. The fine substance removal system 10 of this embodiment is
A plurality of fine object removing devices 120 are connected in series and provided. The upstream side fine substance removing device 120 is connected to the centrifuge device 110, and the downstream side fine substance removing device 120 is connected to the storage tank 101.

The fine matter removing device 120 on the upstream side and the fine matter removing device 120 on the downstream side are provided with a fine matter amount detecting device 112, and the fine matter amount detecting device 112 detects the fine matter amount accumulated in the fine matter removing device 120 and detects a detection signal. To the control device 113.

The control device 113 drives the fine substance removing device 120 on the upstream side based on the detection signal from the fine substance amount detecting device 112 arranged in the fine substance removing device 120 on the upstream side.
The liquid adhering to the precipitated fine matter is removed and the fine matter is discharged, the fine matter is collected in the collection container 61, and the removed liquid is sent to the fine matter removing device 120 on the downstream side.

The control device 113 drives the fine substance removing device 120 on the downstream side based on the detection signal from the fine substance amount detecting device 112 arranged in the fine substance removing device 120 on the downstream side.
The liquid adhering to the precipitated fine matter is removed and the fine matter is discharged, the fine matter is collected in the collection container 61, and the removed liquid returns to the storage tank 101.

(Embodiment 3)
The third embodiment is shown in FIG. FIG. 3 is a diagram showing a fine substance removal system.

In the fine substance removing system 10 of this embodiment, the same configurations as those of the first embodiment are designated by the same reference numerals, and the description thereof will be omitted. In the fine substance removing system 10 of this embodiment, the upstream side of the settling portion 111 passes through a path leading to the device 100 via the first automatic valve 114c, a second automatic valve 114a, and a centrifuge device 110 in this order. The downstream side of the settling portion 111 includes a path leading to the device 100 and a path leading to the fine matter removing device 120 via the third automatic valve 114b.

Under the control of the control device 113, the normal operation closes the first automatic valve 114c, opens the second automatic valve 114a, closes the third automatic valve 114b, and collects fine substances in the settling portion 111. The fine matter detection device 112 detects the amount of fine matter accumulated in the settling portion 111, the control device 113 controls based on the fine matter amount for detecting the fine matter, and the discharge operation closes the second automatic valve 114a and the third The automatic valve 114b of the above is opened to discharge the fine matter accumulated in the settling portion 111, and at that time, the first automatic valve 114c is opened, the settling portion 111 and the third automatic valve 114b are washed, and the fine matter that cannot be discharged is finely formed. It is discharged to the object removing device 120. The return to the normal operation is configured to close the first automatic valve 114c, open the second automatic valve 114a, close the third automatic valve 114b, and collect fine matter in the settling portion 111. The types of the first automatic valve 114c, the second automatic valve 114a, and the third automatic valve 114b are not particularly limited.

In the fine substance removing system 10 of this embodiment, by performing the normal operation, the discharge operation, and the return to the normal operation, only the accumulated amount of the fine substance is detected and discharged regardless of the flow rate per minute. This enables automation with a minimum amount of waste liquid.

(Embodiment 4)
This embodiment 4 is shown in FIG. FIG. 4 is a diagram showing a fine substance removal system.

In the fine substance removing system 10 of this embodiment, the same configurations as those of the first embodiment are designated by the same reference numerals, and the description thereof will be omitted. The fine substance removing system 10 of this embodiment includes an introduction passage 140 that guides the settled fine matter to the fine substance removing device 120, and the introduction passage 140 communicates with the centrifuge device 110 via an automatic valve 141. is there.

In normal operation, the automatic valve 141 is opened, the separated fine matter is settled, and is introduced into the fine matter removing device 120 via the introduction passage 140. The introduction passage 140 is provided with a fine material detection device 112, and the fine material detection device 112 detects the fine material accumulated in the introduction passage 140. The control device 113 closes the automatic valve 141, drives the fine matter removing device 120, removes the liquid adhering to the precipitated fine matter, and discharges the fine matter, based on the fine matter amount detected by the fine matter amount detecting device 112. ..

(Embodiment 5)
This embodiment 5 is shown in FIG. FIG. 5 is a diagram showing a fine substance removal system.

In the fine substance removing system 10 of this embodiment, the same configurations as those of the first embodiment are designated by the same reference numerals, and the description thereof will be omitted. The fine substance removal system 10 of this embodiment is
The introduction passage 140 includes an introduction passage 140 that guides the settled fine matter to the fine matter removing device 120, and the introduction passage 140 communicates with the centrifuge device 110 via an automatic valve 141a.

In the fine substance removing system 10 of this embodiment, the upstream side of the introduction passage 140 is passed through the path leading to the device 100 via the first automatic valve 114c, the second automatic valve 114a, and the centrifuge device 110 in this order. The downstream side of the introduction passage 140 includes a path leading to the device 100, and the downstream side of the introduction passage 140 includes a path leading to the fine substance removing device 120.

Under the control of the control device 113, the normal operation closes the first automatic valve 114c, opens the second automatic valve 114a, and collects fine objects in the introduction passage 140. The fine matter detection device 112 detects the amount of fine matter accumulated in the introduction passage 140, the control device 113 controls based on the fine matter amount for detecting the fine matter, and the discharge operation closes the second automatic valve 114a and the fine matter is discharged. The introduction of the removal device 120 is driven to discharge the fine matter accumulated in the passage 140, and at that time, the first automatic valve 114c is opened, the introduction passage 140 is washed, and the fine matter that cannot be discharged is discharged to the fine matter removal device 120. .. The return to the normal operation is configured to close the first automatic valve 114c, open the second automatic valve 114a, and collect fine objects in the introduction passage 140.

(Fine quantity detection device)
[Structure of Form 1]
The fine material detection device is configured as shown in FIGS. 6 to 11. FIG. 6 is a diagram for explaining a fine material detection device, FIG. 7 is a principle diagram for explaining the detection of the fine material, FIG. 8 is a diagram showing a case where the fine material is not detected, and FIG. 9 is a diagram showing a case where the fine material is detected. , FIG. 10 is a flow diagram showing detection of a fine material amount, and FIG. 11 is a diagram showing another form of a fine material amount detection device.

The fine material detection device 112 is a device that detects the amount of fine material accumulated in the settling section 111, and is provided on the settling section 111 based on the output from the ultrasonic sensor 112a provided on the outer surface of the settling section 111 and the ultrasonic sensor 112a. A detection means 112b for detecting the amount of fine material accumulated is provided.

The ultrasonic sensor 112a is held by the coupling material 112c on the outer surface of the settling portion 111, and is mounted at a predetermined position by the mounting jig 112d. The position where the ultrasonic sensor 112a is attached is the position where the amount of fine matter accumulated in the sedimentation portion 111 is detected. The discharge passage 150 communicates with the bottom of the settling portion 111.

When the output from the ultrasonic sensor 112a is equal to or greater than the threshold value, the detection means 112b determines that the fine substance amount is equal to or less than the specified value, and when the output from the ultrasonic sensor 112a is equal to or less than the threshold value, the fine substance amount is the specified value. Judge as above.

(Detection principle)
The ultrasonic sensor 112a of this embodiment has a configuration in which the presence or absence of an object is detected by transmitting ultrasonic waves toward an object by a transmitter 112a1 and receiving the reflected waves by a receiver 112a2.

In this embodiment, the reflection type is used, and as shown in FIG. 7A, the side wall of the settling portion 111 causes mouth reflection, inner wall reflection, and outer wall reflection. For example, it is possible to use a method of detecting only the reflected wave from an object existing within the detection distance range set by the distance adjustment volume or the like.

As shown in FIG. 7B, when only the cutting fluid is accumulated inside the settling portion 111 or when the cutting fluid is not accumulated, the output due to the reflection on the inner wall of the ultrasonic sensor 112a is large. As shown in FIG. 7C, when the fine matter contained in the cutting fluid is separated and removed and the fine matter accumulates inside the settling portion 111, the output due to the reflection on the inner wall of the ultrasonic sensor 112a is fine. It is attenuated by an object and becomes smaller.

(Detection of minute quantity)
The minute amount detection by the fine amount detecting device 112 of this embodiment will be described with reference to FIGS. 8 to 10. In the fine material detection device 112 of this embodiment, the ultrasonic sensor 112a is connected to the detection means 112b by a cable.

The detection of the minute amount is started (FIG. 10 (a)), and the ultrasonic sensor 112a transmits an ultrasonic wave and receives the reflected wave (FIGS. 10 (b) and 10 (c)). The detection means 112b determines the signal received by the ultrasonic sensor 112a (FIG. 10 (d)), and determines that the output from the ultrasonic sensor 112a, that is, the received voltage is equal to or more than the threshold value, and the minute amount is equal to or less than the specified value ( FIG. 8B) shows that when the reception voltage is below the threshold value, it is determined that the amount of fine matter is equal to or higher than the specified value (FIG. 9B).

When it is determined that the amount of fine matter is equal to or less than the specified value, a normal display is performed (FIG. 10 (e)), and for example, a blue lamp is turned on. When it is determined that the amount of fine matter is equal to or higher than the specified value, a detection signal is output (FIG. 10 (f)) and the process ends (FIG. 10 (g)).

[Structure of Form 2]
As shown in FIG. 11, the fine material detection device 112 of this embodiment uses a transmission type as the ultrasonic sensor 112a provided on the outer surface of the precipitation portion 111. This transmissive type has a configuration in which the presence or absence of an object is detected by transmitting ultrasonic waves toward an object by a transmitter 112a1 and receiving the transmitted waves by a receiver 112a2. The transmitter 112a1 and the receiver 112a2 are held by the coupling material 112c on the outer surface of the settling portion 111 at opposite positions, and are attached to the predetermined positions by the attachment jig. The position where the ultrasonic sensor 112a is attached is the position where the amount of fine matter accumulated in the sedimentation portion 111 is detected.

When the output from the ultrasonic sensor 112a is equal to or greater than the threshold value, the detection means 112b determines that the fine substance amount is equal to or less than the specified value, and when the output from the ultrasonic sensor 112a is equal to or less than the threshold value, the fine substance amount is the specified value. Judge as above.

In this embodiment, as shown in FIG. 11B, when only the cutting fluid is accumulated inside the settling portion 111, or when the cutting fluid is not accumulated, the output of the ultrasonic sensor 112a is output. Is big. When the fine matter contained in the cutting fluid is separated and removed and the fine matter accumulates inside the settling portion 111, the output of the ultrasonic sensor 112a is attenuated by the fine matter and becomes smaller.

(Fine object removal device)
[Structure of Form 1]
The fine substance removing device of this embodiment will be described with reference to FIGS. 12 and 13. FIG. 12 is a cross-sectional view of the fine object removing device, and FIG. 13 is a diagram showing a state of removing fine objects.

The fine substance removing device 120 of this embodiment has a cylindrical accommodating portion 20 for accommodating fine objects to which a settling liquid is attached, and a screw which is arranged in the cylindrical accommodating portion 20 in the axial direction and discharges fine objects by rotation. The configuration includes a shaft 30 and a driving means 40 for rotationally driving the screw shaft 30.

An introduction opening 21 is formed in the cylindrical accommodating portion 20 at a position above the central portion, and the introduction pipe 22 is connected to the introduction opening 21. A centrifuge device 50 is connected to the cylindrical accommodating portion 20 via an introduction pipe 22. The fine substance to which the liquid is attached is accommodated inside the cylindrical accommodating portion 20 through the introduction opening 21.

The screw shaft 30 has a screw 31, and the screw 31 is formed corresponding to the length of the cylindrical housing portion 20. The drive means 40 is composed of a motor 41, and the output shaft 42 of the motor 41 is connected to the input shaft portion 32 of the screw shaft 30 via a connecting member 43.

The motor 41 is attached to the rear end of the cylindrical housing portion 20 via the mounting body 23, and the input shaft portion 32 of the screw shaft 30 is pivotally supported by the mounting body 23 via the bearing 24.

A throttle portion 27 is provided on the discharge side of the cylinder accommodating portion 20, and the throttle portion 27 is covered with a stopper 70. The stopper 70 includes a stopper portion 71 having a spherical surface that abuts on the opening of the throttle portion 27, a support shaft portion 72 to which the stopper portion 71 is fixed, and a support cylinder 73 that supports the support shaft portion 72. The support cylinder 73 is supported by the holder 74, and the holder 74 is attached to the support 76 fixed to the throttle portion 27 by the mounting bolts 75.

The stopper portion 71 is fixed to the receiving portion 72a of the support shaft portion 72, and the spring 78 constituting the urging means 77 is arranged between the receiving portion 72a and the flange portion 73a of the support cylinder 73. The spring 78 is urged so that the surface of the stopper portion 71 is always in contact with the opening of the throttle portion 27 via the receiving portion 72a of the support shaft portion 72. As described above, the stopper 70 is always urged in the closing direction by the urging means 77.

The screw shaft 30 is rotated by being driven by a motor 41 constituting the driving means 40, and the rotation of the screw shaft 30 causes fine objects housed inside the cylindrical housing portion 20 to move in the discharge direction by the screw 31 (FIG. 13). (A)). The moving fine object comes into contact with the surface of the stopper portion 71 (FIG. 13 (b)), and further, the minute object moves due to the rotation of the screw shaft 30, and the fine object pushes the stopper portion 71 to push the stopper portion 71 to the throttle portion. The opening of 27 opens (FIG. 13 (c)). The fine material falls from the opening of the throttle portion 27 and is collected in the collection container 61 (FIG. 13 (d)).

In this way, when the fine matter stored inside the cylindrical housing portion 20 is moved in the discharge direction by the screw 31 due to the rotation of the screw shaft 30, is discharged from the cylindrical housing portion 20, and is collected in the collection container 61, The liquid adhering to the fine matter is removed, and this liquid is collected in the storage tank 101 through the discharge hole 26.

[Structure of Form 2]
The fine substance removing device of this embodiment will be described with reference to FIG. FIG. 14 is a diagram showing a fine substance removing device.

The fine substance removing device 120 has the same configuration as that of the first embodiment with the same reference numerals, and the description thereof will be omitted. In this embodiment, the discharge cylinder 80 is connected to the discharge side of the cylindrical storage portion 20, and the discharge cylinder 80 has a discharge opening 81 that opens above the cylindrical storage portion 20, and is discharged from the cylindrical storage portion 20. The structure is such that an object can be discharged from the discharge opening 81 of the discharge cylinder 80.

The fine substance removing device 120 is not limited to the fine substance removing system of the above-described embodiment, and is a centrifugal separator that separates and precipitates fine substances contained in a liquid by centrifugal force, or a hopper that stores the separated fine substances. It is configured so that it can be connected to, removes the liquid adhering to the fine matter, and discharges the fine matter.

[Structure of Form 3]
The fine substance removing device of this embodiment will be described with reference to FIG. FIG. 15 is a diagram showing a fine substance removing device.

The fine substance removing device 120 is connected to a centrifugal separator that separates and precipitates fine substances contained in the liquid by centrifugal force, or a hopper that stores the separated fine substances, and removes the liquid adhering to the fine substances to be fine. It is a device for discharging an object, and includes a laterally arranged fine object removing unit A and an obliquely arranged fine object removing unit B.

The laterally arranged fine object removing unit A includes a screw shaft 200 for discharging the fine objects by rotation and a driving means 201 for rotationally driving the screw shaft 200.
The structure is such that fine objects are directly dropped from the centrifuge device or the charging section 202 connected to the hopper to the portion of the screw shaft 200.

The diagonally arranged fine matter removing portion B includes a cylindrical accommodating portion 300 for accommodating fine matter to which liquid is attached, and a screw shaft 301 which is arranged in the cylindrical accommodating portion 300 in the axial direction and discharges fine matter by rotation. , The driving means 302 for rotationally driving the screw shaft 301, and the fine material falls from the opening 303 and is collected in the collection container 61.

By driving the laterally arranged fine object removing unit A and driving the diagonally arranged fine object removing unit B, fine objects are directly sent from the charging unit 202 to the screw shaft 200 of the laterally arranged fine object removing unit A. When the screw shaft 200 is dropped, the screw shaft 200 rotates to send the fine matter from the laterally arranged fine matter removing portion A to the diagonally arranged fine matter removing portion B.

In the obliquely arranged fine object removing unit B, the fine object is lifted by the rotational drive of the screw shaft 301, the liquid is removed, and the fine substance falls from the opening 303 and is collected in the collection container 61.

In this fine object removing device 120, fine objects are constantly flowed by two screw shafts, a screw shaft 200 of the laterally arranged fine object removing section A and a screw shaft 200 of the laterally arranged fine object removing section A. As a result, fine objects can be discharged with a low load, and the motors constituting the drive means 201 and the drive means 302 can be miniaturized. In addition, even when stopped for a long period of time, it is possible to move with a minimum load because water veins can be secured to some extent. In addition, it is possible to maintain water veins and prevent internal sticking to a minimum by constantly flowing even fine substances that tend to solidify.

The obliquely arranged fine object removing unit B can adjust the screw shaft 301 to an arbitrary angle of 95 degrees to 180 degrees depending on the fine object, for example, depending on the type and water content of the fine object. Adjust the angle.

The fine substance removing device 120 is connected to a centrifugal separator that separates and precipitates fine substances contained in the liquid by centrifugal force, or a hopper that stores the separated fine substances, and removes the liquid adhering to the fine substances to be fine. It is a device for discharging an object, and by driving a laterally arranged fine substance removing unit A and an obliquely arranged fine object removing unit B, a liquid adhering to the fine substance is removed and the fine substance is collected.

[Structure of Form 4]
The fine substance removing device of this embodiment will be described with reference to FIGS. 16 to 20. 16 is a front view showing the fine substance removing device, FIG. 17 is a plan view showing the fine substance removing device, FIG. 18 is a perspective view showing the fine substance removing device, and FIG. 19 shows a configuration in which the position of the discharge port can be changed. FIG. 20 is a diagram showing a configuration in which the angle can be changed with the center of the screw shaft as a fulcrum. In the configuration of the fourth embodiment, the same parts as those of the third embodiment are designated by the same reference numerals, and the description thereof will be omitted.

A laterally arranged fine object removing portion A and an obliquely arranged fine object removing portion B are provided, and the laterally arranged fine object removing portion A directly removes fine objects from the loading portion 202 of the hopper to the portion of the screw shaft 200. It is configured to be dropped. The input section 202 of the hopper is
It has an overflow cover 400, and by opening the overflow cover 400, it adheres to separated fine objects and discharges the liquid accumulated in the charging portion 202 of the hopper.

The obliquely arranged fine substance removing unit B includes a fine substance discharging rail 410 for discharging the fine substance from which the liquid has been removed, and the fine substance discharging rail 410 has a configuration in which the position of the discharging port 411 can be changed. For example, the fine material discharge rail 410 is provided with the connection portion 412 rotatably provided on the cylinder of the obliquely arranged fine material removal unit B, and the fine material discharge rail 410 is rotated to change the position of the discharge port 411. By rotating the fine material discharge rail 410, the position of the discharge port 411 is located on the left side when viewed from the side in FIG. 19 (a), and the position of the discharge port 411 is located on the right side when viewed from the side in FIG. 19 (b). The position of the discharge port 411 can be freely changed according to the installation status of equipment and devices.

As shown in FIG. 20, the obliquely arranged fine object removing portion B has a configuration in which the angle of the screw axis direction can be changed with the screw axis center of the laterally arranged fine object removing portion A as a fulcrum. For example, at the time of initial installation, the position of the diagonally arranged fine object removing portion B is taken into consideration, the mounting angle of the diagonally arranged fine object removing portion B with respect to the laterally arranged fine object removing portion A is determined, and bolts and nuts are used. Tighten and fix with the mounting means 500 such as. In addition, due to subsequent changes in equipment, the mounting means such as bolts and nuts are removed, and the mounting angle of the diagonally arranged fine object removing portion B with respect to the laterally arranged fine object removing portion A is changed to change the bolts. -Tighten and fix with mounting means 500 such as nuts. In this way, by changing the mounting angle of the diagonally arranged fine object removing portion B with respect to the laterally arranged fine object removing portion A and changing the screw axial direction of the obliquely arranged fine object removing portion B, the ejection is performed. The position of the exit 411 can be freely changed according to the installation status of equipment and devices.

The present invention is applicable to a fine substance removing system and a fine substance removing device that separates fine substances such as fine powdery debris contained in a liquid, removes the liquid adhering to the fine substances, and recovers the fine substances. Unmanned operation is made possible by separating and removing fine substances contained in the liquid by automatic operation, removing the liquid adhering to the fine substances, and recovering the fine substances.

10 Fine object removal system 20 Cylindrical housing part 21 Introduction opening 22 Introduction pipe 23 Mounting body 24 Bearing 27 Squeezing part 30 Screw shaft 31 Screw 32 Input shaft part 40 Drive means 41 Motor 42 Output shaft 43 Connecting member 70 Stopper 71 Stopper part 72 Support Shaft 73 Support cylinder 74 Holder 75 Mounting bolt 76 Support 77 Biasing means 78 Spring 80 Discharge cylinder 81 Discharge opening 100 Processing or processing device 101 Storage tank 102 Circulation path 103 Pump 110 Centrifugal separator 111 Sedimentation 112 Fine amount Detection device 112a Ultrasonic sensor 112b Detection means 113 Control device 120 Fine object removal device 140 Introduction passage A Lateral arrangement type fine object removal unit B Diagonal arrangement type fine object removal unit

Claims (17)

Equipment that processes or processes using liquids,
A storage tank that stores liquids for processing or processing,
A circulation path for supplying a liquid from the storage tank to the device and returning the liquid from the device to the storage tank for circulation.
In the circulation path,
A centrifuge that separates and precipitates fine substances contained in the liquid by centrifugal force,
A fine substance removing device that removes the liquid adhering to the precipitated fine substances and discharges the fine substances.
A fine material detection device that detects the amount of fine material accumulated by precipitation, and
A fine substance removing system comprising: a control device for controlling the fine substance removing device based on the detected fine substance amount. Equipped with a settling part to collect fine substances that settle
The fine quantity detection device is
The fine substance removing system according to claim 1, wherein the amount of fine substances accumulated in the settling portion is detected. The fine substance removing device is provided with the fine substance amount detecting device.
The fine quantity detection device is
The fine substance removing system according to claim 1, wherein the amount of fine substances accumulated in the fine substance removing device is detected. The fine substance removing system according to any one of claims 1 to 3, wherein a plurality of the fine substance removing devices are connected in series. The circulation path is provided with a cleaning circuit for cleaning the settling portion and the fine substance removing device.
The control device is characterized in that, after discharging the fine matter from the settling portion and the fine matter removing device, the cleaning circuit is driven to clean the settling portion and the fine matter removing device. The fine substance removing system according to any one of claims 4. The fine substance removing system according to any one of claims 1 to 5, wherein the settling portion is directly connected and integrated on the upstream side of the fine substance removing device. Including an introduction passage that guides the precipitated fine matter to the fine matter removing device.
The introduction passage is provided with the sedimentation portion.
The fine matter removing system according to any one of claims 1 to 6, wherein the fine matter amount detecting device detects the fine matter amount accumulated in the settling portion. The upstream side of the settling portion is
A path leading to the device via the first automatic valve,
Includes a second automatic valve and a path leading to the device through the centrifuge in sequence.
The downstream side of the sedimentation part is
A path leading to the fine substance removing device via a third automatic valve,
Including
By the control of the control device
In normal operation, the first automatic valve is closed, the second automatic valve is opened, the third automatic valve is closed, and fine substances are accumulated in the settling portion.
The discharge operation closes the second automatic valve, opens the third automatic valve, discharges fine substances accumulated in the settling portion, and then opens the first automatic valve, and opens the settling portion and the third. The automatic valve is cleaned and the fine substances that cannot be discharged are discharged to the fine substance removing device.
The return to the normal operation is characterized in that the first automatic valve is closed, the second automatic valve is opened, the third automatic valve is closed, and fine substances are accumulated in the settling portion. The fine substance removing system according to any one of claims 2 to 7. The fine substance removing device is
A cylindrical housing unit that stores fine objects to which liquid has adhered,
A screw shaft that is arranged in the axial direction inside the cylindrical housing portion and discharges the fine material by rotation,
Including a driving means for rotationally driving the screw shaft,
The liquid adhering to the fine object is removed by the rotation of the screw shaft, and the liquid is removed.
The fine substance removing system according to claim 1 to 8, wherein the fine substance from which the liquid has been removed is discharged from the cylindrical housing portion. A throttle portion is provided on the discharge side of the cylindrical accommodating portion.
Cover the throttle with a stopper and
The stopper is always urged in the closing direction by the urging means.
The fine substance removing system according to claim 9, wherein the stopper is pushed by a fine substance discharged from the cylindrical accommodating portion, and the throttle portion can be opened and closed. A discharge cylinder is connected to the discharge side of the cylindrical housing portion, and the discharge cylinder is connected.
The discharge cylinder has a discharge opening that opens above the cylindrical housing portion.
The fine substance removing system according to claim 9, wherein the fine substance discharged from the cylindrical accommodating portion can be discharged from the discharge opening of the discharge cylinder. Centrifugal separation device that separates and precipitates fine substances contained in liquid by centrifugal force, or fine substance removal that removes liquid adhering to fine substances and discharges fine substances by connecting to a sedimentation part that collects the separated fine substances. It is a device
A cylindrical housing unit that stores fine objects to which liquid has adhered,
A screw shaft that is arranged in the axial direction inside the cylindrical housing portion and discharges the fine material by rotation,
Including a driving means for rotationally driving the screw shaft,
The rotation of the screw shaft removes the liquid adhering to the fine matter,
A fine substance removing device for discharging the fine substance from which the liquid has been removed from the cylindrical housing portion. A throttle portion is provided on the discharge side of the cylindrical accommodating portion.
Cover the throttle with a stopper and
The stopper is always urged in the closing direction by the urging means, and the stopper is always urged in the closing direction.
The fine substance removing device according to claim 12, wherein the stopper is pushed by a fine substance discharged from the cylindrical accommodating portion, and the throttle portion can be opened and closed. A discharge cylinder is connected to the discharge side of the cylindrical housing portion, and the discharge cylinder is connected.
The discharge cylinder has a discharge opening that opens above the cylindrical housing portion.
The fine substance removing device according to claim 12, wherein the fine substance discharged from the cylindrical accommodating portion can be discharged from the discharge opening of the discharge cylinder. Centrifugal separation device that separates and precipitates fine substances contained in liquid by centrifugal force, or fine substance removal that removes liquid adhering to fine substances and discharges fine substances by connecting to a sedimentation part that collects the separated fine substances. It is a device
A screw shaft that discharges the fine objects by rotation,
A laterally arranged fine object removing unit including a driving means for rotationally driving the screw shaft, and
A cylindrical housing unit that stores fine objects to which liquid has adhered,
A screw shaft that is arranged in the axial direction inside the cylindrical housing portion and discharges the fine material by rotation,
A drive means for rotationally driving the screw shaft, and an obliquely arranged fine object removing portion including the screw shaft are provided.
By driving the laterally arranged fine object removing unit and driving the diagonally arranged fine object removing unit,
The fine matter is sent from the laterally arranged fine matter removing portion to the diagonally arranged fine matter removing portion.
A fine substance removing device characterized in that a liquid is removed from the obliquely arranged fine substance removing portion and the fine substance is discharged. The diagonally arranged fine object removing portion is
Equipped with a fine substance discharge rail that discharges fine substances from which liquid has been removed
The fine substance removing device according to claim 15, wherein the fine substance discharge rail has a configuration in which the position of the discharge port can be changed. The screw axial direction of the diagonally arranged fine object removing portion is
The fine substance removing device according to claim 15 or 16, wherein the angle can be changed with the screw shaft center of the laterally arranged fine substance removing portion as a fulcrum.

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