Method and separation conduit for handling lubricant mist, and rock drilling rig
A technology for separating pipes and lubricants, applied in earthwork drilling, engine lubrication, drilling tools, etc., can solve problems such as personnel health risks, insufficient oil separation, polluted breathing air, etc., to improve movement and collection, and improve safety sex, to avoid the effect of getting dirty
Inactive Publication Date: 2011-02-09
SANDVIK MINING & CONSTR OY
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- Description
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Problems solved by technology
In current oil mist lubrication systems, the separation of the oil is insufficient, so the air released into the ambient atmosphere still contains a large number of oil droplets, which contaminate the breathing air and cause health risks for personnel working at the drilling site
Furthermore, the oil fouls the environment and makes rock drilling machines dirty
Method used
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Embodiment Construction
[0023] figure 1 A rock drilling machine 1 is shown comprising a movable carrier 2 provided with one or more drilling arms 3 with rock drilling units. The drilling unit 4 comprises a feed beam 5 connected to a drilling boom 3 and a rock drilling machine 6 which is movable on the feed beam 5 by means of a feed device 7 . The rock drilling machine 6 has a drill shank 8 to which a tool 9 can be attached. In some cases, the tool is attached directly to the rock drilling machine rather than to the shank. The percussion device of the rock drilling machine 6 is arranged to send percussion pulses to the tool 9 which transmits percussion pulses to the rock 10 , thus breaking the rock and creating a borehole 11 . Drill shank 8 can be lubricated with oil mist. Lubricant mist is formed by dosing a small amount of liquid lubricant into a stream of compressed gas. The oil mist comprises small oil droplets of a lubricant, such as oil, mixed with air. When the oil mist has lubricated the ...
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Abstract
The invention relates to a method for handling lubricant mist used in mist lubrication, a separation conduit and, further, a rock drilling rig having a mist lubrication system provided with a separation conduit. The return flow of the lubrication mist is conveyed in the separation conduit (27) from the lubrication target to a collection container (13). The separation conduit is an elongated conduit having an elongated separation member (28) arranged therein, the separation member comprising a plural number of successive and inclined barrier surfaces (33). Lubricant droplets (P) contained in the lubricant mist hit the barrier surfaces and accumulate thereon. The separated lubricant is collected into the collection container at the outermost end of the separation conduit.
Description
technical field [0001] The present invention relates to a method for collecting lubricant used in oil mist lubrication after the lubricant mist has passed a lubrication target. The lubricant in the lubricant mist is collected in a collection container and the compressed air is released into the ambient atmosphere. [0002] The invention also relates to a separation pipe and a rock drilling machine, the oil mist lubrication system of the rock drilling machine is provided with the separation pipe. The field of the invention is defined in more detail in the preambles of the independent claims. Background technique [0003] In the prior art it is known to lubricate the shank of a rock drilling machine with an oil mist in the form of very small oil droplets in compressed air. This type of lubrication is often referred to as oil mist lubrication. When the oil mist has lubricated the drill shank, it is conveyed through the discharge duct into a collection container which may be ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B25D17/26E21B12/00
CPCF16N7/30B25D17/265E21B12/00
Inventor 米卡·门蒂涅米埃萨·里黑奥贾
Owner SANDVIK MINING & CONSTR OY