AIR AND OIL SEPARATION DEVICE

Abstract

An oil separator device includes at least a first chamber and a second chamber. An air-oil mixture may enter the body via the first chamber and may impact one or more interior surfaces within the body thereby causing at least a portion of the oil to be separated from the air-oil mixture. The separated oil may be directed to an oil reservoir and permitted to exit the body via an oil outlet. The remainder of the air-oil mixture may be directed toward the second chamber and be permitted to exit the body as working air via an outlet in communication with the second chamber. The oil separator device may include one or more baffles disposed between one or more of the first chamber, the second chamber, and the oil reservoir. A connector tube including one or more cylindrical members may facilitate communication between the first and second chambers.

Description

FIELD

The present disclosure relates to oil separators, and more particularly oil separators that may be used in combination with compressors, such as oil-flooded compressors for operating a mining drill.

BACKGROUND

Industrial drills (e.g., mining drills, oil field drills, drills for exploration, etc.) may be operable to drill through rock. Surface-type mining drills may include a compressed air system.

SUMMARY

In one independent aspect, an oil separator device includes a body having a first end, a second end, a first chamber, and a second chamber in fluid communication with the first chamber; an inlet for receiving an air-oil mixture, the inlet in fluid communication with the first chamber; an air outlet in fluid communication with the second chamber; and a first baffle oriented in a lateral plane and extending across at least a portion of the body, the first baffle including a solid center portion and at least one peripheral opening disposed about the solid center portion, the at least one peripheral opening facilitating communication between the first chamber and an oil reservoir, wherein the air-oil mixture entering the first chamber via the inlet impinges upon one or more internal components of the oil separator device, thereby separating oil from the air-oil mixture as the air-oil mixture travels from the first chamber toward the second chamber, and oil separated from the air-oil mixture passes through the at least one peripheral opening and is collected in the oil reservoir.

In some aspects, the oil separator device further includes a perforated tube providing fluid communication between the first chamber and the second chamber, the perforated tube including at least one opening extending through a surface thereof.

In some aspects, the first chamber is positioned between the second chamber and the oil reservoir.

In some aspects, the oil separator device is configured to receive the air-oil mixture from a compressor.

In some aspects, the compressor is an oil flooded rotary screw air compressor including one or more rotors driven by a primary mover.

In some aspects, the oil separator device is configured to return oil separated from the air-oil mixture to the compressor via an oil outlet.

In some aspects, the inlet includes an air inlet tube extending at least partially across an inner diameter of the first chamber such that the air-oil mixture enters an upper region of the first chamber and is directed toward an interior surface of the body.

In some aspects, the oil separator device further includes a separator element positioned in the second chamber and configured to remove oil from the air that enters the second chamber.

In some aspects, the oil separator device further includes at least one third baffle disposed within the oil reservoir and oriented substantially perpendicularly with respect to the first and second baffles.

In another independent aspect, an oil separator device includes a body having a first end, a second end, a first chamber, and a second chamber in fluid communication with the first chamber; an air inlet for receiving an air-oil mixture, the inlet in fluid communication with the first chamber; an air outlet in fluid communication with the second chamber; a tube providing fluid communication between the first chamber and the second chamber, the tube including a first opening positioned in the first chamber, a second opening in fluid communication with the second chamber, and at least one intermediate opening positioned on an outer surface of the tube; and an outer baffle extending around a perimeter of the tube and spaced apart from an outer surface of the tube.

In some aspects, a body axis extends between the first end and the second end of the body, the oil separator device further including a first baffle oriented in a plane that is substantially perpendicular to the body axis.

In some aspects, the first baffle includes a solid center portion and at least one peripheral opening disposed about the solid center portion, the at least one peripheral opening facilitating communication between the first chamber and an oil reservoir.

In some aspects, the oil separator device further includes a second baffle oriented substantially parallel with respect to the first baffle and positioned between the first and second chambers, the second baffle including an opening configured to facilitate communication between the first and second chambers.

In some aspects, the second opening of the tube is configured to align with the opening of the second baffle.

In some aspects, the inlet includes an inlet tube extending at least partially across an internal diameter of the first chamber such that the air-oil mixture is directed toward an interior surface of the body upon entering the oil separator device via the inlet.

In some aspects, the first chamber is positioned between the second chamber and an oil reservoir.

In some aspects, the oil reservoir includes a drain configured to allow oil separated from the air-oil mixture to exit the oil separator device.

In some aspects, a body axis extends between the first end and the second end of the body, the oil separator device further comprising at least one baffle positioned within the oil reservoir and oriented in a plane that is substantially parallel to the body axis.

In some aspects, the oil separator device further includes an oil outlet configured to permit oil separated from the air-oil mixture to exit the oil separator device.

In one independent aspect, a mining drill includes a base; a mast coupled to the base and extending upwardly therefrom; a drill pipe supported by the mast and configured to extend through a ground surface and into a borehole; an air compressor supported by the base and operable to generate compressed air that may be used during operation of the drill; a lubrication system in communication with the air compressor and configured to provide oil to the air compressor; and an oil separator in fluid communication with the air compressor and configured to provide oil to the air compressor, the oil separator further including a body having a first end, a second end, a first chamber, and a second chamber in fluid communication with the first chamber; an inlet for receiving an air-oil mixture from the air compressor, the inlet in fluid communication with the first chamber; an air outlet in fluid communication with the second chamber; a tube providing fluid communication between the first chamber and the second chamber, the tube including a first opening positioned in the first chamber, a second opening in fluid communication with the second chamber, and at least one intermediate opening positioned on an outer surface of the tube; and an outer baffle extending around a perimeter of the tube and spaced apart from an outer surface of the tube.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a side view of a mining drill.

FIG. 2 is a perspective view of an oil separator, according to one embodiment.

FIG. 3 is a schematic view of a lubrication system according to one embodiment.

FIG. 4 is a schematic view of an air compressor.

FIG. 5 is a partial cross-section view of the oil separator of FIG. 2 viewed along section 5-5.

FIG. 6 is a cross-section view of the oil separator of FIG. 2, viewed along section 6-6.

FIG. 7 is a cross-sectional view of the oil separator of FIG. 2 viewed along section 5-5 illustrating compressed air flow therethrough.

DETAILED DESCRIPTION

Before any embodiments of the disclosure are explained in detail, it is to be understood that the disclosure is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. The disclosure is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of “including,” “comprising,” or “having” and variations thereof are meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Unless specified or limited otherwise, the terms “mounted,” “connected,” “supported,” and “coupled” and variations thereof are used broadly and encompass both direct and indirect mountings, connections, supports, and couplings.

Relative terminology, such as, for example, “about,” “approximately,” “substantially,” and the like, used in connection with a quantity or condition would be understood by those of ordinary skill to be inclusive of the stated value and has the meaning dictated by the context (for example, the term includes at least the degree of error associated with the measurement accuracy, tolerances (for example, manufacturing, assembly, use, and the like) associated with the particular value, and the like). Such terminology should also be considered as disclosing the range defined by the absolute values of the two endpoints. For example, the expression “from about 2 to about 4” also discloses the range “from 2 to 4.” The relative terminology may refer to plus or minus a percentage (for example, 1%, 5%, 10%, or more) of an indicated value.

Functionality described herein as being performed by one component may be performed by multiple components in a distributed manner. Likewise, functionality performed by multiple components may be consolidated and performed by a single component. Similarly, a component described as performing particular functionality may also perform additional functionality not described herein. For example, a device or structure that is “configured” in a certain way is configured in at least that way but may also be configured in ways that are not explicitly listed.

FIG. 1 illustrates an industrial machine or drill 200, which in the illustrated embodiment is a surface-type mining drill such as a blasthole drill. In other embodiments, the machine may be another type of drill, such as a platform drill, a track drill, etc. In still other embodiments, the machine may be another type of drill or other machine that incorporates a compressed air system, such as other types of mining equipment, construction equipment, forestry equipment, and the like. The drill 200 of FIG. 1 includes a drill tower 202, a base 204 (e.g., a machinery house) supporting the drill tower 202, an operator's cab 206 coupled to the base 204, and traction devices (e.g., crawlers) 208 configured to move the drill 200 along a ground surface 210. The drill tower 202 is coupled to and supports a drill pipe 212 (e.g., with a drill bit, not shown), which is configured to extend through the ground surface 210 (e.g., vertically downward) and into a borehole (not shown).

The drill 200 further includes a drive train 214 for providing power from a prime mover 216 to various components of the drill 200, including the traction devices 208 and the drill pipe 212. An air compressor 218 is supported by the base 204 and is operable to generate compressed air that may be used, for example, for flushing bit cuttings from the bottom of the borehole to the ground surface 210. A lubrication system 220 is also supported by the base 204 and is operable to provide oil to the air compressor 218, as described below. The base 204 may further support an oil separator 10. The oil separator 10 may be in fluid communication with the air compressor 218 and may separate or filter oil (e.g., provided by the lubrication system 220) from the pressurized air supplied by the air compressor 218.

As shown in FIG. 2, the oil separator 10 may include a first end or upper end 14, a second end or lower end 18, and a main body 12 extending therebetween. A central longitudinal axis 20 of the oil separator 10 may extend between the upper and lower ends 14, 18. The oil separator 10 also includes an air inlet 26 for receiving compressed air (e.g., from an outlet port of a compressor 104-FIG. 3) and an air outlet 30 located proximate the upper end 14 for discharging working air from the oil separator 10. As shown, the oil separator 10 may also include an oil outlet 34, which may be located proximate the lower end 18 of the oil separator 10. In some embodiments, a drain 36 (FIG. 5) is positioned adjacent the lower end 18, and a valve (not shown) may be provided proximate the drain 36 for maintenance purposes.

The oil separator 10 may be incorporated as part of a system, an example of which is illustrated schematically in FIG. 3. In the illustrated embodiment, an oil flooded compressor system 100 is operable to supply working air from the oil separator 10. The illustrated oil flooded compressor system 100 includes an air compressor 104, the oil separator 10, and a cooler 108. In the exemplary embodiment of FIG. 3, the oil separator 10 receives pressurized air from the compressor 104 and separates lubricating oil from the pressurized air. As used herein, the term “oil” encompasses any liquid lubricant, whether petroleum based or synthetic, that is appropriate for use in a flooded compressor, such as the compressor 104.

The components of the oil flooded compressor system 100 can be coupled together by fluid transfer components, such as piping, valving, and/or metering devices. Examples of these fluid transfer components are described below. It should be understood, however, that the arrangement, selection, and number of fluid transfer components may be varied as would be understood by one of ordinary skill in the art. In the exemplary embodiment of FIG. 3, the air inlet 26 of the oil separator 10 may be in communication with a line 154 that receives an oil-air mixture exiting the compressor 104. An oil supply line 158 extending between the oil outlet 34 of the oil separator 10 and the compressor 104 may be configured to transport oil from the oil separator 10 (e.g., oil separated from the oil-air mixture supplied by the compressor 104) back to the compressor 104. In some embodiments, the cooler 108 may be disposed along the oil supply line 158 to dissipate heat (for example, after the oil exits the oil separator 10 but before the oil passes to the compressor 104).

Turning to FIG. 4, in some embodiments, the compressor 104 of the oil flooded compressor system 100 may be provided in the form of an oil flooded rotary screw air compressor. The compressor 104 may include a main rotor or screw 112 that rotates about an axis 116 and a secondary rotor or screw 120 that rotates about an axis 124. In some embodiments, the axes 116, 124 may be substantially parallel with respect to one another. Each of the rotors 112, 120 may be supported by bearings 128 within a stator housing 132. The rotors 112, 120 are driven by a prime mover 136, for example an engine or an electric motor. The rotors 112, 120 may be coupled to the prime mover 136 by any suitable power transfer mechanism 138 (FIG. 3), such as a transmission, power take-off shaft, torque convertor, direct drive and the like. In other embodiments, the compressor 104 may include more than two rotors, or the compressor 104 may include a single rotor. The compressor 104 also includes an air inlet port (not shown) for receiving air and an air outlet port (not shown) through which pressurized air exits the compressor 104.

Referring now to FIG. 5, the illustrated oil separator 10 includes the main body 12, the compressed air inlet 26, the working air outlet 30, and the oil outlet 34. For example, the air inlet 26 may be disposed on the main body 12, between the upper end 14 and lower end 18. In the illustrated embodiment, the air inlet 26 is laterally offset from the axis 20. The air outlet 30 may be positioned proximate the upper end 14 of the main body 12 (e.g., at the upper end 14 or between the air inlet 26 and the upper end 14), and the oil outlet 34 may be positioned proximate the lower end 18 of the main body 12 (e.g., at the lower end 18 or between the air inlet 26 and the lower end 18). The main body 12 may include multiple chambers to facilitate separation of oil from the compressed air that enters the oil separator 10 via the air inlet 26.

In the illustrated embodiment, the main body 12 includes a first chamber 38 in fluid communication with the air inlet 26, a second chamber 42 positioned between the first chamber 38 and the upper end 14 of the main body 12, and an oil reservoir 46 positioned between the first chamber 38 and the lower end 18 of the main body 12. In the illustrated embodiment, the chambers of the main body 12 are arranged in a stacked configuration (e.g., the oil reservoir 46 is positioned proximate the lower end 18, the second chamber 42 is positioned proximate the upper end 14, and the first chamber 38 is positioned between the oil reservoir 46 and the second chamber 42). In other embodiments, the main body 12 may include additional chambers and/or the chambers may be arranged in any suitable configuration.

A first baffle 54 may be oriented substantially perpendicularly with respect to the axis 20 of the oil separator 10 (e.g., the first baffle 54 may be oriented horizontally with respect to the oil separator 10). The first baffle 54 may be positioned between the first and second chambers 38, 42 and may at least partially separate the first and second chambers 38, 42. For example, the first baffle 54 may extend at least partially across an inner diameter of the main body 12. The first baffle 54 may include a discharge opening 60 providing fluid communication between the first and second chambers 38, 42.

The air inlet 26 is in fluid communication with the first chamber 38, and one or more inner tubes 48 positioned in the first chamber 38 may provide fluid communication between the first chamber 38 and the second chamber 42. In some embodiments, the inner tubes 48 may include a substantially cylindrical outer baffle 50 having a first diameter D1 (FIG. 6) and an inner tube 56 having a second diameter D2 (FIG. 6). In some embodiments, the inner tube 56 may include one or more openings extending through a surface thereof. For example, in the illustrated embodiment of FIGS. 5-7, the inner tube 56 may include a plurality of substantially circular perforations extending through an outer surface thereof. In other embodiments, the inner tube 56 may include one or more holes, perforations, slots, or other openings arranged in any suitable configuration to permit air to flow from an exterior of the inner tube 56 to an interior of the inner tube 56. The outer baffle 50 may be provided in the form of an annular body oriented substantially perpendicular with respect to the first baffle 54 (e.g., substantially parallel with respect to the axis 20). The outer baffle 50 may abut the first baffle 54 such that the outer baffle 50 circumscribes or surrounds the discharge opening 60.

The inner tube 56 may include an intake end 58 positioned within the first chamber 38 and a discharge end 62 opposing the intake end 58. The discharge end 62 may align with (e.g., to pass through or to be received by) the discharge opening 60 in the first baffle 54. In this way, the inner tube 56 may provide or facilitate fluid communication between the first chamber 38 and the second chamber 42 via the discharge opening 60. In the exemplary embodiment of FIG. 5, the discharge end 62 of the inner tube 56 and the discharge opening 60 are located in a geometric center of the first baffle 54. However, in other embodiments, the discharge end 62 and the discharge opening 60 may be located in any suitable position.

The air inlet 26 may include an air inlet tube 52 that extends into an upper end of the first chamber 38 (e.g., proximate to the first baffle 54). The air inlet tube 52 extends into the first chamber 38 a distance L and a compressed air-oil mixture is discharged into the first chamber 38 and directed toward an interior surface 22 of the main body 12. In the illustrated embodiment, the air inlet tube 52 is laterally offset from the axis 20. The air-oil mixture may be directed to flow around the axis 20 (e.g., in a helical manner). In some embodiments, the inner tube 56 may be supported within an interior of the outer baffle 50. The second chamber 42 includes the air outlet 30 for discharging working air positioned at or proximate the upper end 14. In some embodiments, the second chamber 42 may also include a separator element (not shown) configured to further separate particulates or droplets of oil from compressed air before the compressed air exits the main body 12 via the air outlet 30.

Referring still to FIG. 5, the main body 12 may include a second baffle 66 positioned between the first chamber 38 and the oil reservoir 46. The second baffle 66 may be oriented substantially perpendicular with respect to the axis 20 (e.g., parallel to the first baffle 54). In the illustrated embodiment, the second baffle 66 includes a substantially circular body 68 and one or more peripheral perforations 70 along a peripheral edge of the second baffle 66 (e.g., circumscribing at least a portion of the body 68). The peripheral perforations 70 provide fluid communication between the first chamber 38 and the oil reservoir 46 such that oil may drain from the first chamber 38 to the oil reservoir 46 and be collected therein. In some embodiments, the second baffle 66 may include two peripheral perforations 70. In other embodiments, the second baffle 66 may include more than two peripheral perforations 70, or the second baffle 66 may include a single peripheral perforation 70.

The oil reservoir 46 is positioned adjacent the oil outlet 34, and oil in the oil reservoir 46 may exit the oil separator 10 via the oil outlet 34. For example, an oil uptake pipe 40 in fluid communication with the oil outlet 34 may extend from the oil outlet 34 into the oil reservoir 46. The pipe 40 may provide a channel through which oil in the oil reservoir 46 may travel to the oil outlet 34 and exit the oil separator 10. In some embodiments, the pipe 40 may pass through an opening (not shown) of the second baffle 66 in order to provide fluid communication between the oil reservoir 46 and the oil outlet 34.

In some embodiments, the oil reservoir 46 may also include one or more reservoir baffles 74. The reservoir baffles 74 may extend either partially or entirely between the lower end 18 of the main body 12 and the second baffle 66 (e.g., the reservoir baffles 74 may extend from an interior surface of the lower end 18 to an under surface of the second baffle 66). The reservoir baffles 74 may extend either partially or entirely between the pipe 40 and the interior surface 22 of the main body 12. In some embodiments, the reservoir baffles 74 may be formed integrally with the pipe 40 or the reservoir baffles 74 may be coupled to the pipe 40 and extend radially outwardly therefrom. In some embodiments, the oil reservoir 46 may include two reservoir baffles 74. In other embodiments, the oil reservoir 46 may include more than two reservoir baffles 74, or the oil reservoir 46 may include a single reservoir baffle 74.

FIG. 6 depicts a side cross-section view of the oil separator 10. As shown, the outer baffle 50 may be positioned around a geometric center of the first baffle 54 and extend downwardly therefrom. In the illustrated embodiment, the outer baffle 50 is a solid tube with diameter D1. As shown, the inner tube 56 has a diameter D2 that is smaller than the diameter D1 of the outer baffle 50. Thus, the outer baffle 50 extends around an outer perimeter of the inner tube 56 and a space or gap may be positioned between the outer baffle 50 and the inner tube 56. For example, air may be directed into the space or gap where it may impinge upon one or both of the outer baffle 50 and the inner tube 56 when the oil separator 10 is in use. In the illustrated embodiment, the discharge opening 60 extending through the first baffle 54 has a diameter equal to the diameter D2 of the inner tube 56.

FIG. 7 illustrates the flow of compressed air from the compressor 104 through the oil separator 10 in an exemplary embodiment. When the compressor 104 is in an operating state, compressed air flows from the compressor 104 to the air inlet 26 of the oil separator 10. Compressed air enters the main body 12 through the air inlet tube 52 (e.g., near an upper portion of the first chamber 38 proximate the first baffle 54), as shown by the arrow A1. The compressed air is then forced downward toward a lower end of the first chamber 38 (e.g., toward the second baffle 66). As the compressed air is pushed downward, the air may flow around the outer baffle 50, as shown by the arrow A2, until the air reaches or approaches the intake end 58 of the inner tube 56. The compressed air may then be directed upwardly through the interior of the outer baffle 50 and the inner tube 56, as shown by the arrow A3. The compressed air may exit the inner tube 56 through the discharge opening 60 and enter the second chamber 42. The compressed air may then pass through the second chamber 42 toward the upper end 14 and may pass through a separator element 44 positioned within the second chamber 42, as shown by the arrows A4. The compressed air may then exit the oil separator 10 as working air through the air outlet 30, as shown by the arrow A5. In operation, the location of the air inlet tube 52 (e.g., near the upper portion of the first chamber 38) and the presence and/or the construction of the inner tube 56 may increase the surface area the compressed air impinges upon while traveling through the oil separator 10. The increased surface area may increase the efficacy of the oil separator 10 (e.g., by increasing the amount of oil removed from the compressed air within the first chamber 38).

As the compressed air travels upwardly through the oil separator 10, oil separated from the compressed air may travel downwardly through the oil separator 10 and into the oil reservoir 46. For example, as the compressed air impinges upon one or more internal components of the oil separator 10 (e.g., the inner tube 56 and/or the interior surface 22 of the main body 12), oil may adhere to those internal components and thus be separated from the compressed air. This separated oil may pass from the first chamber 38 to the oil reservoir 46 via the peripheral perforations 70 in the second baffle 66 (e.g., due to gravity). The reservoir baffles 74 within the oil reservoir 46 may inhibit swirling and/or sloshing of the separated oil and may prevent the oil from splashing out of the oil reservoir 46 and into the first chamber 38. The compressor 104 pressurizes the oil separator 10 and separated oil may flow from the oil outlet 34 back to the compressor 104.

In other embodiments, the oil separator 10 may include additional chambers and/or additional stages for further separation of oil from the air.

The embodiment(s) described above and illustrated in the figures are presented by way of example only and are not intended as a limitation upon the concepts and principles of the present disclosure. As such, it will be appreciated that variations and modifications to the elements and their configuration and/or arrangement exist within the spirit and scope of one or more independent aspects as described.

Claims

1. An oil separator device comprising: a body including a first end, a second end, a first chamber, and a second chamber in fluid communication with the first chamber;an inlet for receiving an air-oil mixture, the inlet in fluid communication with the first chamber;an air outlet in fluid communication with the second chamber; anda first baffle oriented in a lateral plane and extending across at least a portion of the body, the first baffle including a solid center portion and at least one peripheral opening disposed about the solid center portion, the at least one peripheral opening facilitating communication between the first chamber and an oil reservoir,wherein the air-oil mixture entering the first chamber via the inlet impinges upon one or more internal components of the oil separator device, thereby separating oil from the air-oil mixture as the air-oil mixture travels from the first chamber toward the second chamber, and oil separated from the air-oil mixture passes through the at least one peripheral opening and is collected in the oil reservoir.

2. The oil separator device of claim 1, further comprising a perforated tube providing fluid communication between the first chamber and the second chamber, the perforated tube including at least one opening extending through a surface thereof.

3. The oil separator device of claim 1, wherein the first chamber is positioned between the second chamber and the oil reservoir.

4. The oil separator device of claim 1, wherein the oil separator device is configured to receive the air-oil mixture from a compressor.

5. The oil separator device of claim 4, wherein the compressor is an oil flooded rotary screw air compressor including one or more rotors driven by a primary mover.

6. The oil separator device of claim 4, wherein the oil separator device is configured to return oil separated from the air-oil mixture to the compressor via an oil outlet.

7. The oil separator device of claim 1, wherein the inlet includes an air inlet tube extending at least partially across an inner diameter of the first chamber such that the air-oil mixture enters an upper region of the first chamber and is directed toward an interior surface of the body.

8. The oil separator device of claim 1, further comprising a separator element positioned in the second chamber and configured to remove oil from the air that enters the second chamber.

8. The oil separator device of claim 1, further comprising a second baffle oriented substantially parallel with respect to the first baffle and positioned between the first and second chambers, the second baffle including a discharge opening configured to facilitate communication between the first and second chambers.

9. The oil separator device of claim 1, further comprising at least one third baffle disposed within the oil reservoir and oriented substantially perpendicularly with respect to the first and second baffles.

10. An oil separator device comprising: a body including a first end, a second end, a first chamber, and a second chamber in fluid communication with the first chamber;an inlet for receiving an air-oil mixture, the inlet in fluid communication with the first chamber;an air outlet in fluid communication with the second chamber;a tube providing fluid communication between the first chamber and the second chamber, the tube including a first opening positioned in the first chamber, a second opening in fluid communication with the second chamber, and at least one intermediate opening positioned on an outer surface of the tube; andan outer baffle extending around a perimeter of the tube and spaced apart from an outer surface of the tube.

11. The oil separator device of claim 10, wherein a body axis extends between the first end and the second end of the body, the oil separator device further comprising a first baffle oriented in a plane that is substantially perpendicular to the body axis.

12. The oil separator device of claim 11, wherein the first baffle includes a solid center portion and at least one peripheral opening disposed about the solid center portion, the at least one peripheral opening facilitating communication between the first chamber and an oil reservoir.

13. The oil separator device of claim 11, further comprising a second baffle oriented substantially parallel with respect to the first baffle and positioned between the first and second chambers, the second baffle including an opening configured to facilitate communication between the first and second chambers.

14. The oil separator device of claim 13, wherein the second opening of the tube is configured to align with the opening of the second baffle.

15. The oil separator device of claim 10, wherein the inlet includes an inlet tube extending at least partially across an internal diameter of the first chamber such that the air-oil mixture is directed toward an interior surface of the body upon entering the oil separator device via the inlet.

16. The oil separator device of claim 10, wherein the first chamber is positioned between the second chamber and an oil reservoir.

17. The oil separator device of claim 16, wherein the oil reservoir includes a drain configured to allow oil separated from the air-oil mixture to exit the oil separator device.

18. The oil separator device of claim 17, wherein a body axis extends between the first end and the second end of the body, the oil separator device further comprising at least one baffle positioned within the oil reservoir and oriented in a plane that is substantially parallel to the body axis.

19. The oil separator device of claim 10, further comprising an oil outlet configured to permit oil separated from the air-oil mixture to exit the oil separator device.

20. A mining drill, comprising: a base;a mast coupled to the base and extending upwardly therefrom;a drill pipe supported by the mast and configured to extend through a ground surface and into a borehole;an air compressor supported by the base and operable to generate compressed air that may be used during operation of the drill;a lubrication system in communication with the air compressor and configured to provide oil to the air compressor; andan oil separator in fluid communication with the air compressor and configured to separate oil from the air supplied by the air compressor, the oil separator including,a body including a first end, a second end, a first chamber, and a second chamber in fluid communication with the first chamber;an inlet for receiving an air-oil mixture from the air compressor, the inlet in fluid communication with the first chamber;an air outlet in fluid communication with the second chamber;a tube providing fluid communication between the first chamber and the second chamber, the tube including a first opening positioned in the first chamber, a second opening in fluid communication with the second chamber, and at least one intermediate opening positioned on an outer surface of the tube; andan outer baffle extending around a perimeter of the tube and spaced apart from an outer surface of the tube.