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Xinhai mineral processing equipment mainly include: grinding equipment, flotation equipment, dewatering equipment, magnetic separation equipment, and so on. Some of the equipment is Xinhai independent research and development, and has been awarded national patent. View details
Gold CIL (Carbon in Leach) Process is an efficient design of extracting and recovering gold from its ore. By cyaniding and carbon leaching crushed gold ore slurry simultaneously, CIL process lower the gold mining operation cost and increase gold recovery rate to a degree of 99%. View details
On October 11, the 3-day CHINA MINING Conference and Exhibition 2019 was conclud...
Valves are very common in mining industry. They help operators control the whole pipes and slurry flow, so they make mineral processing plant management easier and more convenient. They are many kinds of valves according to different functions. Here are some problem solutions about the knife gate valve and pinch valve.
Knife Gate Valve
1, How to solve the leakage of the connection between valve body and bonnet?
The reasons causing the leakage are flange sloping because bolts of flange connection place are tightened unevenly; tension of fastening bolts is not enough; Gasket is damaged and do not meet the requirements. We should fasten the flange with uniform force, or replace the gasket.
Application temperature range: -40℃-70℃
Three kinds of manual knife – type gate valve classified by different pressure bearing are named XWXZF-0.6, XWXZF-1.0 and XWXZF-1.6
1, What are the disadvantages of pinch valve?
The valve is mainly used in low pressure environment, generally less than PN 16.
Rubber casing is the core of the pinch valve, so the using temperature has limitation, usually between -40~200 ℃.
Limited by rubber process, the caliber of pipe valve usually is within DN 300 mm in order to meet the quality of casing strength. Large caliber pinch valves bring higher prices.
Pay attention to the following items when you use Xinhai pinch valve:
Not recommended for negative pressure
Not recommended for severe throttling duties
The bushings are designed for pressure up to 10.5KG/cm2. If the required pressure is higher than the limitation pressure, please contact with us.
Xinhai wear-resistant rubber is widely used in mining machinery as linear. It protects mining machine from wearing, corrosion and impact. In this passage. ... [more]
Xinhai hydrocyclone is creatively used in dewatering process according to Xinhai idea. Xinhai hydrocylone with wear-resistant rubber linear owns long service life and high efficiency. ... [more]
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Factory Address: No. 188, Xinhai Street, Fushan high-tech industrial development district, Yantai, Shandong, China
© 2017 Shandong Xinhai Mining Technology & Equipment Inc. Technical Support: 北京鑫互联科技有限公司
© 2017 Shandong Xinhai Mining Technology & Equipment Inc.