JP2009248078A - Oil separable cyclone type filter apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cyclone type filter capable of obtaining stable high flow rate stream, efficiently separating a foreign substance from a liquid and further separating not only the foreign substance but oil from a material to be treated. <P>SOLUTION: Water 36, the foreign substance and oil 38 contained in the liquid to be treated are centrifugally separated by providing a pipe spirally along the inner side surface or the outer side surface of a cylindrical body 22 and forcibly sending the liquid to be treated through the inside of the pipe 28. The separated water, the foreign substance and the oil are jetted to the inside of the cylinder to store the heavy material on the lower part, to collect oil floated on the water to the inside of a nearly conical roof part 52 structured on the upper part of the cylindrical body and an oil discharge port is provided on the top part of the roof part to discharge the floated oil and a water discharge pipe 56 is provided in the eccentric direction to discharge the water along the inner side surface of the cylindrical body to separately discharge the oil and water. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

Claims

Claim 1

  In the cyclone type filtering device for centrifuging foreign matter contained in the treatment liquid by providing a conical body having a foreign matter discharge port at the lower part of the cylinder and feeding the treatment liquid to the inner surface of the cylinder, the cylinder A tube is provided in a spiral shape along the inner or outer surface of the body, and the water, foreign matter and oil contained in the treatment liquid are centrifuged by circulating the pressure of the treatment liquid inside the pipe. By ejecting the separated water, foreign matter, and oil to the inside of the cylindrical body, heavy foreign matter is accumulated downward, and water is placed inside the substantially dome-shaped or substantially conical roof portion formed at the top of the cylindrical body. The oil floating above is collected, and an oil discharge port is provided at the top of the roof portion to discharge the floating oil, so that the water is discharged in an eccentric direction so that water is discharged along the inner surface of the cylinder. It is characterized by providing a discharge pipe and separating oil and water separately and discharging That oil separable cyclonic filtration device.

  The present invention relates to an oil-separable cyclone type filtration device for centrifuging foreign matter and oil contained in a treatment liquid.

  The cyclone method is used as a method for separating foreign substances contained in the processing liquid, but as shown in the prior art of FIG. 7, the pressure is fed by the pump 12 from the direction in which the inside of the cylinder 10 is eccentric. By putting a high-speed water flow 14 into the cylinder 10 and creating a vortex in the cylinder 10, the foreign material 16 having a large specific gravity sinks to the bottom of the cone 11 provided at the lower part of the cylinder 10, thereby separating the foreign material 16. In most cases, the liquid 18 containing oil is discharged to the outside through an outlet 20 provided at the top.

As shown in Japanese Patent Laid-Open No. 2006-159143, an inner cylinder is provided inside the outer cylinder, and as shown in Japanese Patent Laid-Open No. 2007-54677, a plurality of arc-shaped partition plates are provided inside the outer cylinder. Although there are some provided, the water flow is fast at the place where the upper treatment liquid is fed, but the water flow is slow when it is at the lower part, and further oil cannot be separated.
JP 2006-159143 A JP 2007-54677 A

  Therefore, a tube is spirally provided on the inner surface of the outer cylinder, and the foreign material contained in the treatment liquid is centrifuged by the pressure distribution of the treatment liquid inside this tube, and the eccentric position of the upper part of the cylinder Water and oil containing foreign matter introduced from the water flow at high speed through the tube in a centrifugal manner in the cylinder, so that the foreign matter collects on the side of the tube, and water, oil and light matter with a low specific gravity do not contain foreign matter inside. Since there was an outlet at the center of the flow, the oil to be separated was discharged to the outside and the oil could not be separated. In addition, the fluid in the pipe can obtain a stable high-speed flow without receiving the resistance of the internal fluid as in the simple cylinder cyclone system, and it has become possible to efficiently separate the foreign material from the liquid. And oil could not be separated.

  On the other hand, industrial and water-soluble metal working fluids are mixed with oil leaking from machine tools mixed in them, mineral oil adhering to the workpiece, and metal powder generated by processing. In particular, mineral oil is a bait for bacteria and is a cause of anaerobic conditions and removal is a major factor in extending the life of water-soluble processing fluids. It is important to remove this mineral oil so that it can be used as food.

  The conventional cyclone method applies centrifugal force by decentrating the filtrate into the cylinder and introducing it at a high speed to discharge the heavy specific gravity from the bottom by applying centrifugal force. Things with lighter specific gravity than the liquid float above, but the conventional cyclone method floats because there is an outlet for the filtrate there, and because the filtrate is put at a higher speed than the upper part where the oil should float The oil was mixed again and the oil component went out with the filtrate and could not be separated. The purpose of the present invention is to obtain a stable high-speed flow without receiving the resistance of the internal fluid as in the case of a simple cyclone system It is possible to efficiently separate the foreign substance and the liquid and to separate the treatment liquid from dust and foreign substances as well as oil.

  In the cyclone type filtering device for centrifuging foreign matter contained in the treatment liquid by providing a conical body having a foreign matter discharge port at the lower part of the cylinder and feeding the treatment liquid to the inner surface of the cylinder, the cylinder A tube is provided in a spiral shape along the inner or outer surface of the body, and the water, foreign matter and oil contained in the treatment liquid are centrifuged by circulating the pressure of the treatment liquid inside the pipe. By ejecting the separated water, foreign matter, and oil to the inside of the cylindrical body, heavy foreign matter is accumulated downward, and water is placed inside the substantially dome-shaped or substantially conical roof portion formed at the top of the cylindrical body. The oil floating above is collected, and an oil discharge port is provided at the top of the roof portion to discharge the floating oil, so that the water is discharged in an eccentric direction so that water is discharged along the inner surface of the cylinder. It is characterized by providing a discharge pipe and separating oil and water separately and discharging That oil separable cyclonic filtration device.

    The water and oil containing foreign matter introduced from the eccentric position of the upper part of the cylinder flow at high speed through a pipe spirally provided outside or inside the cylinder, so that the foreign substance gathers on the side surface of the pipe and enters the inside. Water and air that do not contain foreign substances flow, and the fluid in the pipe can obtain a stable high-speed flow without receiving the resistance of the internal fluid, just like a cylindrical cyclone system, and efficiently separates foreign substances and liquids. The oil floating on the water is collected inside the substantially dome-shaped or substantially conical roof portion formed at the upper part of the cylindrical body, and an oil discharge port is provided at the top of the roof portion, By discharging these floating oil and providing a water discharge port in an eccentric direction so that water is discharged along the inner surface of the cylinder, it is possible to separate the oil and water separately and discharge them became.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall perspective view of a cyclonic filtration device according to the present invention, in which a cone body 26 having a foreign substance discharge port 24 is provided at a lower portion of a cylinder body 22 and a tube 28 is provided spirally along the outer surface of the cylinder body. 2, the processing liquid 30 mixed with the foreign matter 34 and the oil 38 is sent and distributed by the pump 32, and as shown in the discharge section of the pipe 28 in FIG. 2, the spiral pipe 28. Inside, the heavy foreign substance 34 contained in the treatment liquid 30 is pressed outward by the centrifugal force inside the tube 28 and agglomerates, and the oil 38 lighter than the water 36 is pressed inward and separated from the water 36. Is discharged. It is preferable that the tube is made of a metal having a smooth finish on the inner surface so that the aggregated foreign matter 34 is not clogged inside the tube 28.

  FIG. 3 shows a longitudinal sectional view of a cyclone type filtration device capable of oil separation according to the present embodiment, and FIG. As shown in FIG. 4, the discharge portion of the tube 28 is configured to penetrate the wall of the cylindrical body 22 and open to the inside so that the opening surface 40 is perpendicular to the inner side surface of the cylindrical body 22. The foreign matter 34, water 36, and oil 38 separated from the treatment liquid 30 are configured to be ejected along the inner surface of the cylindrical body 22.

  The foreign matter 34 discharged from the tube 28 sinks to the bottom of the cone 26 and falls below the foreign matter discharge port 24. However, the foreign matter reservoir chamber 44 is formed on the lower surface of the cone 26, the bottom plate 42, and the lower inner surface of the cylindrical body 22. Therefore, the foreign matter 34 that has fallen downward is collected in the foreign matter reservoir chamber 44 and is not collected in the cone 22. The foreign matter 34 that has accumulated in the foreign matter reservoir chamber 44 is a foreign matter discharge port 46 and a foreign matter discharge pipe 48. Then, the valve 50 is discharged to the outside by opening and closing.

  Since the oil 38 discharged from the pipe 28 is lighter than the water 36, it floats and gathers inside the dome-shaped roof portion 52 formed on the upper portion of the cylinder and is pressed from below, so that the oil 38 is placed on the top of the roof portion 52. As shown in FIG. 5, the water 36 is centrifuged in the cylindrical body 22 and pressed against the inner surface of the cylindrical body 22, so that the inside of the cylindrical body 22 is discharged. Since the water 36 is discharged to the outside through the water discharge pipe 56 provided in an eccentric direction so that the water 36 is discharged along the side surface, the treatment liquid 30 is completely separated into the foreign matter 34, the water 36 and the oil 38. It is discharged outside through various discharge pipes.

  FIG. 6 shows another embodiment of the present invention, in which a tube 58 for centrifuging the treatment liquid 30 is spirally provided on the inner surface of the cylindrical body 22. In this case, the inlet portion of the tube 58 is a cylinder. It is configured to penetrate the wall of the body 22.

  1 shows an overall perspective view of a cyclonic filtration device according to the present invention. FIG.   Fig. 3 shows a cross-sectional view of the discharge part of the spiral tube.   The longitudinal cross-sectional view of the cyclone type filtration apparatus by this invention is shown.   The AA arrow line view of FIG. 3 is shown.   The BB arrow line view of FIG. 1 is shown.   Another embodiment of the present invention will be described.   The conventional cyclone type filtration apparatus is shown.

Explanation of symbols

10 cylinder 11 cone 12 pump 14 high-speed water flow 16 foreign matter 18 liquid 20 outlet 22 cylinder 24 foreign matter discharge port 26 cone 28 spiral tube 30 treatment liquid 32 pump 34 foreign matter 36 water 38 oil 40 opening face 42 bottom plate 44 Foreign matter storage chamber 46 Foreign matter discharge port 48 Foreign matter discharge pipe 50 Valve 52 Roof portion 54 Oil discharge pipe 56 Water discharge pipe 58 Pipe

Claims (1)

  In the cyclone type filtering device for centrifuging foreign matter contained in the treatment liquid by providing a conical body having a foreign matter discharge port at the lower part of the cylinder and feeding the treatment liquid to the inner surface of the cylinder, the cylinder A tube is provided in a spiral shape along the inner or outer surface of the body, and the water, foreign matter and oil contained in the treatment liquid are centrifuged by circulating the pressure of the treatment liquid inside the pipe. By ejecting the separated water, foreign matter, and oil to the inside of the cylindrical body, heavy foreign matter is accumulated downward, and water is placed inside the substantially dome-shaped or substantially conical roof portion formed at the top of the cylindrical body. The oil floating above is collected, and an oil discharge port is provided at the top of the roof portion to discharge the floating oil, so that the water is discharged in an eccentric direction so that water is discharged along the inner surface of the cylinder. It is characterized by providing a discharge pipe and separating oil and water separately and discharging That oil separable cyclonic filtration device.

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