JP3058793U - Belt-type oil skimmer slip prevention mechanism - Google Patents

Abstract

(57) [Summary] (Modified) [Problem] The simplest belt for removing cooling oil discharged from industrial machines or machine tools, or waste oil such as hydraulic oil or lubricating oil mixed in a water-soluble coolant. Provided is an anti-slip mechanism for an oil skimmer. An oil absorbing belt (8) is stretched between a driving pulley (5) and a free pulley (7) immersed in a storage tank (1) of cooling water or water-soluble coolant mixed with waste oil, and the free pulley (7) rotates in a suspended state. When driven, the scraping rod 10 protruding from the main body 9 is inscribed in the ring of the oil absorbing belt 8, and the tension bolt 11 is pressed so that the scraping rod 10 is pressed against the oil absorbing belt 8, and is attracted to the inside of the oil absorbing belt 8. The water-containing waste oil is scraped off, and the water-containing waste oil adsorbed on the outer periphery of the oil absorbing belt 8 is scraped into the oil-water separator 3 by the scraping plate 12 after passing through the driving pulley 5, and the oil-water is separated, and the separated liquid is stored in the storage tank 1. The returned oil is discharged from the L-shaped drain pipe 19 of the oil / water separator 3.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The anti-slip mechanism of the belt-type oil skimmer of the present invention (hereinafter referred to as “the oil skimmer”) is used to regenerate and circulate cooling water or water-soluble coolant discharged from industrial machines or machine tools. In the simplest oil skimmer for removing the waste oil mixed in the oil, the slip of the oil absorption belt generated by the waste oil during operation can be prevented, so that the effect of the oil skimmer can be sufficiently exhibited and the cooling water It is a mechanism that can be used effectively with peace of mind when recycling or using water-soluble coolant.

[0002]

[Prior art]

 In the industrial industries such as industrial machines and machine tools, sludge, foreign matter, and waste oil such as hydraulic oil and lubricating oil are mixed in the cutting and grinding fluid, cleaning fluid, quenching fluid, etc. The use of wastewater may cause problems such as equipment failure, deterioration of liquid performance, and spoilage. Therefore, as a treatment for recycling and reusing the liquid, sludge and foreign matter are precipitated and separated, and waste oil is floated to absorb and discharge. As shown in FIG. 4, a part of the endless oil absorbing belt 53 is immersed in the waste oil layer 52 floating in the tank 51 and driven to rotate around, as shown in FIG. A belt-type oil skimmer 54 for scraping and discharging the water-containing waste oil adsorbed on the surface of the oil tank is commonly used because it is small, simple, and inexpensive.

[0003]

[Problems to be solved by the invention]

 As described above, the belt-type oil skimmer 54 is simple, but the oil-absorbing belt 53 is suspended between the driving pulley 55 and the free pulley 56 immersed below the liquid level by the weight of the free pulley 56. The water-containing waste oil adsorbed on the oil absorbing belt 53 intervenes on the contact drive surface of the driving pulley 55 to cause slip, thereby causing a waste oil discharge function failure.

[0004]

[MEANS FOR SOLVING THE PROBLEMS] The present invention has been made in order to solve the above-mentioned problems. In the present oil gap, the water-containing waste oil adsorbed inside the ring of the endless oil-absorbing belt is provided. A belt-type oil skimmer anti-slip mechanism comprising a scraping mechanism.

[0005] In addition, the means for preventing slippage of the oil skimmer according to the present invention is provided by a mechanism for scraping water-containing waste oil adsorbed inside the ring of the endless oil absorbing belt. A belt-type oil skimmer anti-slip mechanism comprising a tension mechanism.

[0006]

[Operation]

 The slip prevention mechanism of the belt-type oil skimmer of the present invention absorbs the waste oil mixed in the cooling water discharged from the industrial machine or the machine tool or the water-soluble coolant to the endless oil absorption belt as described above. This device separates oil into water and treats it separately. The tank stores the cooling water or water-soluble coolant and floats the waste oil. An endless oil absorption belt is attached to the drive pulley and the oil absorption below the liquid level. A part of the belt is wound around a free pulley that is immersed and driven to rotate, and among the water-containing waste oil adsorbed on the endless oil-absorbing belt, the water-containing waste oil adsorbed inside the wheel is removed. A scraping rod is used to prevent the oil-absorbing belt from slipping due to the adsorbed water-containing waste oil interfering with the contact drive surface of the driving pulley. As hit enough push to 該掻 come up bar, is pressed by a tension bolt from the outer side of the ring of absorbent oil belt. After passing through the driving pulley, the water-containing waste oil adsorbed on the oil absorbing belt is scraped off into an oil-water separator by a scraper, where it is separated into water and oil, and the water is returned to the storage tank. Is discharged.

[0007]

【Example】

 An embodiment of a waste oil removing device provided with a belt type oil skimmer anti-slip mechanism of the present invention will be described with reference to FIGS. 1, 2, and 3. FIG. This device that removes waste oil mixed in cooling water or water-soluble coolant discharged from industrial machines or machine tools, etc. and uses it for recycling is a storage tank that floats the waste oil in the liquid. The oil skimmer 2 is fixed to a side of the storage tank 1 and an oil / water separator 3 attached to the oil skimmer 2. The oil skimmer 2 is provided with an endless oil absorbing belt 8 which is driven to rotate between a driving pulley 5 directly connected to a driving motor 4 and supported by a bearing, and a free pulley 7 immersed near a liquid surface 6 of the storage tank 2. The scraper rod 10 protruding from the main body 9 of the oil skimmer 2 is inscribed at a position near the liquid level 6 between the pulleys 5 and 7 on which the oil absorbing belt 8 is hung. A plurality of tension bolts 11 protruding from the main body 9 similarly to the scraping rod 10 immediately above this, press the scraping rod 10 from outside the belt 8 so as to be able to press against the oil absorbing belt 8. . The oil / water separator 3 has a scraping plate 12 for scraping the water-containing waste oil adsorbed on the outer periphery of the oil absorbing belt 8 into the oil-water separator 3 after passing through the driving pulley 5 so as to protrude from one side of the separation box 13. The interior of the separation box 13 is divided into three tanks by a lower partition plate 14 and an upper partition plate 15, a mesh 17 for roughing is provided on the ceiling of the first tank 16, and a second tank separated by the lower partition plate 14. Reference numeral 18 denotes an L-shaped drain pipe 19 having an opening for intake of floating waste oil, and a third tank 20 separated by an upper partition plate 15 is provided with an adjusting ring for a separated liquid level 24. Is installed in each.

The slip prevention mechanism, which is the main component of the present invention, of the oil skimmer 2 having such a structure will be described. A free pulley 7 immersed below the liquid level 6 of the storage tank 1 is suspended and driven to rotate. When the endless oil absorbing belt 8 absorbs the floating waste oil in the storage tank 1 and rises and reaches the scraping rod 10, the endless oil absorbing belt 8 is pressed against the tension bolt 11 and pressed against the scraping rod 10 to press the oil absorbing belt 8. The water-containing waste oil inside the wheel is scraped off, the intervention of the drive pulley 5 on the contact drive surface is reduced, and the oil absorption belt 8 is prevented from slipping due to this. The water-containing waste oil adsorbed on the outside of the ring of the oil absorption belt 8 after passing through the driving pulley 5 is scraped into the oil-water separator 3 by the scraper 12, and the sludge is captured by the roughing mesh 17. Flows into the first tank 16 in the separation box 13. In the separation box 13, the separated liquid 22 communicates with the lower partition plate 14 and the upper partition plate 15, and the liquid level is provided on the upper edge of the lower partition plate 14 and the drain pipe 23 of the third tank 20. The upper surface of the separated liquid intake port of the adjusting ring 21 is adjusted so that the upper surface thereof is the same liquid level, and the separated liquid level 24 is always maintained. The partition plate 14 overflows and flows into the second tank 18, where the oil and water are separated, and the separated liquid underflows through the upper partition plate 15 and flows into the third tank 20. However, the floating oil does not enter the third tank 20, but forms a floating oil layer 27 in the first tank 16 and the second tank 18, and the upper surface thereof rises to a floating oil level 25 higher than the separation liquid level 24 due to a difference in specific gravity with water. . Therefore, when the water-containing waste oil flows in further, the level in the entire separation box 13 rises, and the separated liquid is returned to the storage tank 1 from the intake of the adjustment ring 21 through the drain pipe 23 by the increased amount. The level of the floating oil layer 27 in the second tank 18 also gradually rises, and the oil is drained from the L-shaped drain pipe 19 until the increased amount returns to the floating oil level 25. Both the floating oil level 25 and the separated liquid level 24 are separated. Will be retained. The belt guide rod 26 projecting from the main body 9 in parallel with the scraping rod 10 has a lubricating belt 8 that has passed through the scraping plate 12 and comes into contact with the separation box 13 to apply a brake to the orbiting drive of the separation box 13. This also plays a role in preventing the lubrication belt 8 from slipping. The above-described slip prevention mechanism of the oil skimmer described above is an example, and the dimensions, shapes, materials, relative positions, and the like of the components described herein are outside the range of conflict with the present invention. It is not limited to.

[0009]

[Effect of the invention]

 The belt-type oil skimmer is often used as a simple device for removing waste water mixed in cooling water or water-soluble coolant discharged from industrial machines or machine tools. However, the oil skimmer 2 of the present invention prevents the slip of the oil absorbing belt 8 against the problem that the oil absorbing belt 8 which is driven to rotate for oil drainage causes slippage due to the waste oil having absorbed oil. Since the oil draining effect can be sufficiently exerted, the liquid can be effectively used with ease in regenerating and using the liquid.

[Brief description of the drawings]

FIG. 1 is a perspective view including a partial cross section of an apparatus for removing mixed waste oil provided with a belt-type oil skimmer slip prevention mechanism according to the present invention;

FIG. 2 is an explanatory view of FIG. 1;

FIG. 3 is an exploded view of the separation box 13 attached to the belt-type oil gap of the present invention.

FIG. 4 is a perspective view including a partial cross section of a conventional belt type oil gap.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Storage tank 15 ... Upper partition plate 2 ... Belt-type oil gap 16 ... 1st tank (this oil gap) 17 ... Mesh for rough filtration 3 ... Oil-water separator 18 ..Second
Tank 4 Drive motor 19 L-shaped drainage pipe 5 Drive pulley 20 Third
Tank 6 ・ ・ ・ Liquid level 21 ・ ・ ・ Adjustment ring 7 ・ ・ ・ Free pulley 22 ・ ・ ・ Separation liquid 8 ・ ・ ・ Oil absorption belt 23 ・ ・ ・ Drain pipe 9 ・ ・ ・ Main body 24 ・ ・ ・ Separation liquid level 10 ... Scraping rod 25 ... Floating oil level 11 ... Tension bolt 26 ... Belt guide rod 12 ... Scraping plate 27 ... Floating oil layer 13 ... Separation box 28 ... Discharge pump 14 Lower partition plate

Claims (2)

[Utility model registration claims] As a method for removing cooling water discharged from an industrial machine or a machine tool, or waste oil such as hydraulic oil and lubricating oil mixed in a water-soluble coolant, a part of an endless oil absorbing belt is removed. In a belt-type oil skimmer that is immersed under the liquid surface where the waste oil is floating and driven to rotate, and scrapes and discharges the water-containing waste oil adsorbed on the oil absorption belt,
A belt type oil skimmer anti-slip mechanism, comprising: a device for scraping water-containing waste oil adsorbed inside the ring of the endless oil absorbing belt. 2. A mechanism for scraping water-containing waste oil adsorbed inside a ring of an endless oil absorbing belt according to claim 1, comprising a tension mechanism for said endless oil absorbing belt. Oil skimmer slip prevention mechanism.