JP2006130489A - Cyclone apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem due to foam such as a deterioration in work environment by eliminating generation of foam of a clean liquid discharged from the upper nozzle of a cyclone apparatus in the cyclone apparatus which removes a chip discharged from an industrial machine such as mainly a grinder, a chip in a coolant containing abrasive grain or the like, and the abrasive grain or the like with centrifugal force that works on the chip, the abrasive grain or the like generated by swirling the coolant. <P>SOLUTION: An air chamber (chamber) 15 which seals a gap to a lower nozzle 12, and communicates with the coolant under a coolant liquid surface 14 in a storage tank 13 storing a small amount of coolant containing the chip, abrasive grain or the like discharged from the lower nozzle 12 of the cyclone apparatus 11 is provided on the lower nozzle 12 of the cyclone apparatus 11 into which the chip, the abrasive grain or the like removed from the inside of the coolant is discharged with a small amount of coolant. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cyclone apparatus for filtering coolant containing chips and abrasive grains mainly discharged from an industrial machine such as a grinding machine.

In the industry, in order to improve recyclability, in the cyclone device when filtering the coolant discharged mainly from industrial machines such as grinding machines,
There is a demand for a cyclone device that does not generate bubbles in the clean liquid discharged from the cyclone device after chips, abrasive grains, and the like are removed by the cyclone device.

  Therefore, as shown in FIG. 4, a cyclone device 11 constituted by an inlet nozzle 16, a lower nozzle 12, an upper nozzle 21, a cylindrical portion 17 and a conical wall 19 has been provided.

  Dirty liquid containing chips, abrasive grains, and the like flowing in from the inlet nozzle 16 is generated by centrifugal force generated by the descending vortex 18 that spirally rotates in the cylindrical portion 17 and the conical wall 19. Is separated to the cylindrical portion 17 and the conical wall 19 side, moves downward, and is discharged from the lower nozzle 12.

  The filtered clean liquid from which chips, abrasive grains, and the like have been removed is lifted from the upper nozzle 21 by the rising vortex 20 generated by the descending vortex 18 and discharged from the upper nozzle 21 (not shown). ).

  Claim 1 according to the present invention is a novel mechanism in which bubbles are not generated in the clean liquid discharged from the upper nozzle of the cyclone apparatus after chips and abrasive grains in the coolant are removed by the cyclone apparatus. By providing a cyclone device that adopts, the problem is to eliminate problems caused by bubbles such as deterioration of the workplace environment.

A cyclone apparatus according to claim 1 of the present invention is provided.
Chips generated by swirling the coolant to remove chips and abrasive grains mainly contained in chips and abrasives discharged from industrial machines such as grinding machines, and In a cyclone device that performs centrifugal force acting on abrasive grains, etc.
In the lower nozzle of the cyclone device, chips and abrasive grains removed from the coolant are discharged together with a small amount of coolant.
The space between the lower nozzle is sealed,
It is characterized by having an air chamber (chamber) that communicates with coolant below the coolant level in the storage tank in which a small amount of coolant containing chips and abrasives discharged from the lower nozzle is stored. To do.

According to the cyclone device according to claim 1 of the present invention,
Compared with the conventional one, since the chips, abrasive grains, etc. in the coolant are removed, the clean liquid discharged from the upper nozzle can provide a cyclone device that does not generate bubbles. In addition to problems such as coolant suction failure of the coolant pump caused by foaming in the interior, problems with foam, such as deterioration of the workplace environment around industrial machines such as grinding machines, mainly due to foam overflow from the coolant system, have been resolved. A cyclone device can be provided.

Best Mode for Carrying Out the Invention

  The cyclone device according to the present embodiment is a cyclone device for filtering coolant containing mainly chips and abrasive grains discharged from industrial machines such as grinding machines.

  In addition, the cyclone device for filtering coolant containing mainly chips and abrasives discharged from industrial machines such as grinding machines removes chips and abrasives by the cyclone device. After that, it is desired that the clean liquid discharged from the upper nozzle of the cyclone apparatus does not generate bubbles.

Hereinafter, representative embodiments of the present invention will be described with reference to the drawings.
However, the dimensions, shapes, materials, relative positions, etc. of the components described in this embodiment are not intended to limit the scope of the present invention only to those unless otherwise specified. It is just an illustrative example.

  A cyclone apparatus for filtering coolant containing mainly chips and abrasives discharged from industrial machines such as grinding machines will be described with reference to FIGS. 1, 2, and 3.

According to this embodiment,
Chips and abrasive grains removed from the coolant are discharged to the lower nozzle 12 of the cyclone device 11 where a small amount of coolant is discharged.
The space between the lower nozzle 12 is sealed,
The coolant level 14 in the liquid storage tank 13 that stores a small amount of coolant containing chips and abrasives discharged from the lower nozzle 12 of the cyclone device 11 provided in the downward direction of the cyclone device 11. A cyclone device 11 having an air chamber (chamber) 15 communicating with a lower coolant is:
As can be understood from FIGS. 1 and 2, coolant containing mainly chips and abrasive grains discharged from an industrial machine such as a grinding machine is thinly formed in a tangential direction from the inlet nozzle 16 to the cylindrical portion 17. By spraying in the shape of a flow, a descending vortex 18 rotating in a spiral shape is generated, and when descending toward the lower nozzle 12 along the conical wall 19, an upward vortex 20 is generated due to the throttling effect of the lower nozzle 12.

  The ascending vortex 20 has the same rotational direction as the descending vortex 18, but the moving direction is reversed. The ascending vortex 20 is captured by the upper nozzle 21 and the coolant is discharged from the upper nozzle 21.

  The removal of solid particles 22 such as chips and abrasive grains contained in the coolant is performed by centrifugal force acting on the swirling particles, and most of these particles are caused by the descending vortex 18 and the smooth inner wall of the conical wall 19. And is discharged from the lower nozzle 12 together with a small amount of coolant.

  The solid particles 22 such as chips and abrasive grains contained in the coolant are removed, and the filtered coolant becomes an ascending vortex 20 and is captured by the upper nozzle 21 and is stored in the liquid storage tank (shown in the figure) from the upper nozzle 21. None) is discharged.

  Here, the rising vortex 20 generated by the squeezing effect of the lower nozzle 12 due to the descending vortex 18 rotating spirally along the conical wall 19 in the cyclone device 11 is directed toward the upper nozzle 21 at the center of the cyclone device 11. Air is sucked from the lower nozzle 12 together with the rising coolant, and the air sucked from the lower nozzle 12 becomes bubbles in the coolant discharged from the upper nozzle 21, together with the coolant into a liquid storage tank (not shown) for clean liquid. Discharged.

  In order to prevent the suction of air from the lower nozzle 12 and minimize the generation of bubbles in the coolant discharged from the upper nozzle 21, the lower nozzle 12 is provided with an air chamber (chamber) 15.

  In the state where the lower nozzle 12 and the air chamber (chamber) 15 communicating with the coolant below the lower coolant level 14 are provided, the above-described rising vortex 20 is generated in the cyclone device 11, and the air chamber (chamber) is generated as described above. When the air in the air 15 is sucked by the rising vortex 20, the air chamber (chamber) 15 is almost in a vacuum state, and the coolant level 14 in the air chamber (chamber) 15 is in the air chamber (chamber) 15. Due to the negative pressure, the liquid level difference rises by 23.

  After the coolant level 14 in the air chamber (chamber) 15 rises by the negative pressure in the air chamber (chamber) 15 by the liquid level difference 23, air is not sucked by the rising vortex 20 [air The chamber (chamber) 15 is almost in a vacuum state], and the suction of air from the lower nozzle 12 due to the generation of the rising vortex 20 of the cyclone device 11 as described above is eliminated, so the coolant discharged from the upper nozzle 21 The generation of bubbles inside can be suppressed.

The present inventors are provided with an air chamber (chamber) 15 for suppressing the generation of bubbles in the coolant discharged from the upper nozzle 21 in the lower nozzle 12 of the cyclone device 11 as described above. Therefore, it may be said that the filtration accuracy of the coolant containing the chips and abrasive grains mainly discharged from industrial machines such as a grinding machine is deteriorated, which is the initial purpose of the cyclone device 11. Because of concern,
(1) Dirty liquid flowing into the cyclone device 11,
(2) Clean liquid discharged from the upper nozzle 21 when the lower nozzle 12 of the cyclone device 11 includes an air chamber (chamber) 15;
(3) Clean liquid discharged from the upper nozzle 21 when the lower nozzle 12 of the cyclone device 11 is not provided with an air chamber (chamber) 15;
In order to compare the density | concentration of the chip | tip contained in each coolant, the density | concentration measurement was implemented, respectively.

The result of the above-mentioned chip density | concentration measurement comparison is shown in FIG.
From the chip concentration measurement result this time, no reduction in the chip collection rate of the cyclone device 11 due to the air chamber (chamber) 15 was observed.

  In addition, when the chip concentration is measured, the generation of bubbles in the clean liquid discharged from the upper nozzle 21 when the lower chamber 12 of the cyclone device 11 includes the air chamber (chamber) 15 is very small. Was also confirmed.

  In addition, as described above, the device of the present invention is not limited to the embodiment described above and shown in the drawings, and can be modified as appropriate without departing from the scope of the invention.

It is explanatory drawing which shows the front of the cyclone apparatus of this invention. It is explanatory drawing which shows the plane of the cyclone apparatus of this invention. It is a comparative measurement result of chip density. It is explanatory drawing which shows the front of the conventional cyclone apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 ... Cyclone apparatus 12 ... Lower nozzle 13 ... Liquid storage tank 14 ... Coolant liquid level 15 ... Air chamber (chamber) 16 ... Inlet nozzle 17 ... Cylindrical part 18 ...・ Descent vortex 19 ... conical wall 20 ... ascending vortex 21 ... upper nozzle 22 ... solid particles 23 ... liquid level difference

Claims (1)

The removal of the chips and abrasive grains in the coolant containing chips and abrasive grains mainly discharged from industrial machines such as grinding machines is generated by turning the coolant. In the cyclone device that performs centrifugal force acting on the chips, abrasive grains, etc.,
In the lower nozzle of the cyclone device, the chips, abrasive grains, etc. removed from the coolant are discharged together with a small amount of coolant.
The space between the lower nozzle is sealed,
An air chamber (chamber) in communication with the coolant below the coolant level in the liquid storage tank provided to store a small amount of coolant containing the chips and abrasive grains discharged from the lower nozzle. The cyclone apparatus characterized by comprising.

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