Water Well Rig Truck Mounted Drilling - Chinaprice: contact company for price
rock drill pneumatic rock drills (pneumatic rock drill 1m distance of
the sound pressure level of 110db (a) above), but still higher than90db
(a), up to 100db (a) around, and the sound energy concentrated in the 1
~ 5khz frequency segment does not exceed the human ear is sensitive
frequency range, if not take the well drilling rigs for sale noise
protection measures body of workers is still harmful. Hydraulic rock
drill pilot study noise source of the noise generated by the impact
mechanism broken rock noise, the noise generated by the rotating
mechanism and drill bits. Noise generated by the impact mechanism
striking piston solder tail closed space generated jet noise, impact
structural noise generated after the piston impact solder and is
deformed due to an down the hole drill rig impact surface is generated
around the pressure pulse noise, wherein the structure-borne noise is
the main ingredient noise frequency characteristics of the structural
vibration frequency consistent. The slewing mechanism noise from the
slewing mechanism hydraulic and mechanical noise, but the noise
intensity lower than the noise generated by the impact mechanism, sound
pressure level difference of more than 10db (a), so little effect on the
hydraulic rock drill noise evaluation. The drill head broken rock noise
generated hydraulic rock drill noise test chiseled into the rock drill
head 0.5m deep, this effect is negligible. Therefore, the research,
testing and analysis of hydraulic rock truck mounted drilling rig drill
noise, mainly focus on the noise generated in the shock structure.
Experimental study on hydraulic rock drill impulsive noise and its
impact mechanism vibration frequency characteristics test and analysis
of well drilling trucks for sale hydraulic rock drill noise is mainly
related to the size of the impact energy and impact frequency has little
effect. Since under certain conditions, the impact of the hydraulic rock
drill size depending on the working pressure, to select the appropriate
working pressure is the key to reduce the noise of the hydraulic rock
drill. Hydraulic rock drill noise is caused mainly by the structure of
the noise, the
Water Well Rig Truck Mounted Drilling
Please inquiry for your need now
- Posted By: zhengzhou Dayu Drill Rig Machinery Co., Ltd.
- Phone: 8637155635088
- Address: No.18 Dongfeng Road, Zhengzhou, China
- Website: http://www.dydrillingrig.com
Published date: November 26, 2012 -
- Business Description: involved in international trade import export of goods, products, and services
Bar Threading MachineGeneral Equipment / Machinery - Evershining Corporation Limited - China - November 22, 2012 - contact company for price
Electric Bar Threading Machine Electric bar threading machine is applicable in threading round bar with round dies. Model: RB-42 Pipe Capacity:M8-M42 Dies:M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30, M33, M36, M39, M42 Speed: (Fast 68r/min) ...
Sell Hand Pallet TruckGeneral Equipment / Machinery - Yi-Lift Material Handling Equipment Co.,Ltd - China - November 15, 2012 - contact company for price
Dear Sir/Madam, Yi-Lift Material Handling Equipment Co., Ltd here. We are a professional logistic and industrial equipments manufacturer in China for more than 30years. The product range covers all kinds of manual and electric pallet trucks, stackers...
50kw Small Wind Turbine Generator China TurbinesGeneral Equipment / Machinery - SENWEI ENERGY TECHNOLOGY CO.,LTD - China - November 15, 2012 - contact company for price
Rotor diameter: 18.0m Blades quantity: 3pcs Direction: always downwind Blades material: Carbon fiber reinforced plastic Rated output: 50KW Power supplied to Grid 55KW [in 5seconds] working voltage: DC500-800V, AC380V Annual average energy production:...
Safe Trade Tips
- Ask for business references and check them
- Use a payment method that offers better protection for all such as Letters of credit and verified professional escrow services. Avoid payments in advance such as money transfers
- Verify their business via their local Chamber of Commerce
- Search the internet using their website address, their business name, their phone and fax numbers, and their email addresses to see if you can find any feedback about them.
- Get to know more about scams to avoid: Internet Crime Complaint Center - International Financial Scams
- This site is never involved in any transaction, and does not handle payments, shipping, guarantee transactions, provide escrow services, or offer "buyer protection" or "seller certification"