JP2000254546A - Magnetic separator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a magnetic separator employing a novel system provided with function capable of separating not only magnetic sludge discharged from an industrial machine such as a grinder or the like but also non-magnetic sludge. SOLUTION: In a magnetic separater provided with function capable of separating not only magnetic sludge but also non-magnetic sludge, a filter box 32 is provided to a place where a coolant liquid flowing in the magnetic separator flows out of the flow passage 24 between the rotary cylinder 16 and bottom plate 23 in the magnetic separator to separate non-magnetic sludge. If a conveyor device for separating non-magnetic sludge is provided in the magnetic separator in place of the filter box 32, the separated non-magnetic sludge can be automatically discharged to the outside of the magnetic separator.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic separator for filtering a coolant discharged from an industrial machine such as a grinder (hereinafter, also referred to as a processing mother machine).

[0002]

2. Description of the Related Art In the industry, in order to improve the reusability of circulation, a magnetic separator for filtering a coolant discharged from a processing mother machine is adsorbed on the outer periphery of a non-magnetic rotary cylinder having a built-in magnet drum. There has been a demand for a magnetic separator capable of simultaneously separating and separating non-magnetic sludge such as abrasive grains contained in a coolant solution together with magnetic sludge contained in a coolant solution to be separated and processed.
FIG. 5 is a schematic front sectional view of a conventionally provided magnetic separator. As shown in FIG. 5, the conventional magnetic separator is
A rotating cylinder 16 with a fixed magnet drum 15 built-in,
Motor 2 with reduction gear for rotating rotating cylinder 16
0, a squeezing rubber roller 25 for squeezing out a coolant liquid contained in the sludge of the magnetic material adsorbed on the outer periphery of the rotating cylinder 16, and scraping the sludge of the magnetic material squeezed by the squeezing rubber roller 25 from the rotating cylinder 16. It is mainly constituted by a sludge peeling plate 31 and a receiving plate 40 for discharging to the outside of the magnetic separator, and a base 11 having a coolant liquid inlet 12 and a coolant outlet 13.

[0003]

SUMMARY OF THE INVENTION Claim 1 according to the present invention
It is an object of the present invention to provide a magnetic separator employing a novel method, in which a function of simultaneously separating non-magnetic sludge is added to a magnetic separator for separating magnetic sludge. A second aspect of the present invention is directed to a magnetic separator for separating and processing magnetic sludge, which is capable of automatically discharging non-magnetic sludge separated and processed in the magnetic separator. It is an object of the present invention to provide a magnetic separator employing a new method, which has a function of simultaneously separating sludge.

[0004]

According to a first aspect of the present invention, there is provided a magnetic separator including abrasives contained in a coolant liquid after sludge of a magnetic material is processed by a non-magnetic rotating cylinder having a built-in magnet drum. In order to separate the non-magnetic sludge, a removable filter is provided in the magnetic separator. The magnetic separator according to claim 2 separates non-magnetic sludge such as abrasive grains contained in the coolant liquid after the magnetic sludge is processed by the non-magnetic rotating cylinder having the built-in magnet drum. And a conveyor device capable of discharging to the outside of the magnetic separator.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION A magnetic separator according to the present embodiment is a magnetic separator for filtering a coolant containing magnetic and non-magnetic sludge discharged from a processing mother machine. As described above, the magnetic separator that filters the coolant containing magnetic and non-magnetic sludge discharged from the processing mother machine is adsorbed on the outer periphery of the non-magnetic rotating cylinder having the built-in magnet drum, and is subjected to separation processing. There has been a demand for a magnetic separator capable of separating non-magnetic sludge such as abrasive grains contained in the coolant simultaneously with magnetic sludge contained in the coolant. Less than,
A typical embodiment of the present invention will be described with reference to the drawings.
However, the dimensions of the components described in this embodiment,
Unless otherwise specified, shapes, materials, their relative positions, and the like are not intended to limit the scope of the present invention thereto, but are merely illustrative. Along with sludge of the magnetic substance contained in the coolant liquid which is adsorbed and separated on the outer periphery of the non-magnetic rotary cylinder containing the magnet drum according to the present embodiment, the non-magnetic substance such as abrasive grains contained in the coolant liquid is removed. As can be understood from FIGS. 1 and 3, a magnetic separator capable of simultaneously treating sludge has an inlet 12 and an outlet 13 in a magnetic separator base 11, and a flow straightening plate 14 is provided in front of the inlet 12. There is. A rotating cylinder 16 which is concentric with the magnet drum 15 and whose inner wall rotates with a small gap between the magnet drum 15 and the inlet / outlet is accommodated in the magnetic separator base 11 together with the magnet drum 15. The rotating shaft 17 of the rotating cylinder 16 extends outside the magnetic separator base 11, on which a sprocket wheel 18 is mounted, and on which a motor with a speed reducer is mounted on a bracket 19 protruding from the magnetic separator base 11. A chain 22 is hung between the small sprocket wheel 21 on the 20 side and the sprocket wheel 18 to rotate the rotary cylinder 16 in the direction of the arrow shown in the figure. A semi-cylindrical bottom plate 23 is provided below the rotating cylinder 16, and a flow path 24 is formed between the bottom plate 23 and the rotating cylinder 16. On the upper part of the rotating cylinder 16, rubber rollers 25 for squeezing are provided by respective screw rods 26 erected from the left and right sides of the magnetic separator base 11,
The roller cylinder 27 is rotatably supported by a roller receiver 27 penetrated so as to be able to freely move up and down in the radial direction of the rotary cylinder 16, and the outer circumference of the rotary cylinder 16 is constantly pressed by a coil spring 28 for each screw rod 26. , Can extend within the range of the axis of the roller shaft 29 with respect to the radial direction of the rotating cylinder 16. The scraping plate 30 is for scraping off sludge adhering to the outer periphery of the squeezing rubber roller 25, and the sludge peeling plate 31 attached to the receiving plate 40 on the outlet 13 side presses the outer periphery of the rotating cylinder 16 to rotate. The adsorption sludge is separated from the cylinder 16. Channel 2 between rotating cylinder 16 and bottom plate 23
The coolant liquid in which the sludge of the magnetic substance in the coolant liquid flowing out of the filter 4 has been separated is flown into the filter box 32 using a wire mesh or the like for the filter in the magnetic separator base 11, and The non-magnetic sludge such as abrasive grains is separated and the coolant liquid from which the magnetic and non-magnetic sludge in the coolant liquid is separated flows out from the outlet 13 in the magnetic separator base 11. The filter box 32 in the magnetic separator base 11 is
It can be easily pulled out of the magnetic separator base 11 with the handle 33 and cleaned. 2 and 4 show a case where a small-sized conveyor device 34 having a filter 36 made of a wire mesh or the like is incorporated in the magnetic separator base 11 in place of the above-described filter box 32, and non-magnetic material such as separated abrasive grains is processed. 2 shows a magnetic separator capable of discharging sludge from the magnetic separator base 11 to the outside. The coolant liquid in which the sludge of the magnetic substance in the coolant liquid that has flowed out from the flow path 24 between the rotary cylinder 16 and the bottom plate 23 has been subjected to the separation treatment flows into the conveyor device inlet 35 in the magnetic separator base 11. . A side surface of the conveyor device inlet 35 is a filter 36 made of a wire mesh or the like. Non-magnetic sludge such as abrasive grains in the coolant liquid is separated in the conveyor device inlet 35, and the separated coolant is processed. The liquid flows out from an outlet 13 in the magnetic separator substrate 11. Non-magnetic sludge such as abrasive particles remaining in the conveyor device inlet 35 is removed by several scrapers 3 connected by a chain 37.
8 is discharged out of the magnetic separator base 11 by a conveyor device 34 driven by an electric motor 39. In addition, the device of the present invention is not limited to the embodiment described above and shown in the drawings, and can be appropriately changed without departing from the gist.

[0006]

According to the magnetic separator according to the first and second aspects, not only the sludge of the magnetic substance in the coolant liquid but also the sludge of the non-magnetic substance such as abrasive grains can be simultaneously separated. Therefore, compared with the conventional magnetic separator, it is possible to provide a novel magnetic separator that can significantly reduce the amount of sludge accumulated on the bottom surface of the coolant tank that stores the coolant discharged from the magnetic separator. Also,
According to the magnetic separator according to claims 1 and 2, in addition to the above effects, the frequency of cleaning the coolant tank is reduced, and the magnetic and non-magnetic sludge is separated from the conventional magnetic separator. It can be treated, and it can be used repeatedly due to the effects such as eliminating the use of the conventionally installed non-magnetic sludge treatment equipment other than the magnetic separator, and reducing the installation space of the coolant equipment incorporating the magnetic separator. With respect to the coolant liquid for industrial machines such as grinding machines, by maintaining cleanliness and extending the life, the performance of the industrial machines such as grinding machines can be maintained and the overall operation cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic front sectional view of a magnetic separator provided with a removable nonmagnetic sludge separation processing filter of the present invention.

FIG. 2 is a schematic front sectional view of a magnetic separator provided with the nonmagnetic sludge separating / conveying apparatus of the present invention.

FIG. 3 is a perspective view showing a part of a magnetic separator provided with a removable nonmagnetic sludge separation filter of the present invention.

FIG. 4 is a perspective view showing a part without a magnetic separation provided with a conveyor device for non-magnetic sludge separation processing of the present invention.

FIG. 5 is a schematic front sectional view of a conventional magnetic separator.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 ... Substrate 12 ... Inflow port 13 ... Outflow port 14 ... Rectifier plate 15 ... Magnet drum 16 ... Rotating cylinder 17 ... Rotating shaft 18 ... Sprocket wheel 19 ...・ Bracket 20 ・ ・ ・ Motor with reduction gear 21 ・ ・ ・ Small sprocket wheel 22 ・ ・ ・ Chain 23 ・ ・ ・ Bottom plate 24 ・ ・ ・ Flow path 25 ・ ・ ・ Rubber roller for drawing 26 ・ ・ ・ Screw rod 27 ・ ・ ・Roller receiver 28 ... Coil spring 29 ... Roller shaft 30 ... Scraping plate 31 ... Sludge release plate 32 ... Filter box 33 ... Handle 34 ... Conveyer device 35 ... Conveyor Device inlet 36 ... Filter 37 ... Chain 38 ... Scraping plate 39 ... Electric motor 40 ... Receiving plate

Claims (2)

[Claims] 1. A water-soluble or water-insoluble coolant liquid mainly used for industrial machines such as grinding machines and containing magnetic sludge is formed in a predetermined gap with a non-magnetic rotating cylinder having a built-in magnet drum. Through which a sludge in the coolant is adsorbed on the outer periphery of the non-magnetic rotating cylinder, and is constantly pressed against the outer periphery of the non-magnetic rotating cylinder. In a magnetic separator for dewatering and discharging processing by a rubber roller for use, separation processing of non-magnetic sludge such as abrasive grains contained in the coolant liquid after separation processing of magnetic sludge by the non-magnetic rotating cylinder is performed A magnetic filter having a removable filter within said magnetic separator. 2. The magnetic separator, wherein the coolant liquid passes through the flow path between the non-magnetic rotating cylinder and the bottom plate, thereby separating sludge of a magnetic substance in the coolant liquid, After the sludge of the magnetic material is separated by the non-magnetic rotating cylinder, the sludge of the non-magnetic material such as abrasive grains contained in the coolant liquid is separated and discharged to the outside of the magnetic separator. A magnetic separator comprising a conveyor device.