Mining and mining inevitably occupy and destroy part of cultivated land, farmland, grassland or forest, affecting the environment and ecological balance. However, the occupied land can be restored through engineering measures and reused in agriculture, forestry, animal husbandry, deputy, fishery, t

The key to the resistance of three-beam active infrared detector In general, ordinary detectors have a wired connection to be installed indoors, but how do you make many TV, lighting and other routes do not affect the normal work of the three-beam active infrared detectors? At this point, we have

BEIJING, Beijing, August 16 (Reporter Pang Wuji) The Ministry of Land and Resources reported on the 16th that it will conduct random random checks on the land reclamation of mining projects. The Ministry of Land and Resources recently issued the “Detailed Rules for the Supervision and Inspec

See Table 14 for the faults and troubleshooting methods when the cone crusher is working. Table 14 Common faults and troubleshooting methods of cone crusher Serial number Fault phenomenon Possible Causes Elimination method 1 Oil pump heating Oil thick or low oil temperature Change oil or w

The hardness of the ore, which reflects the mineral composition of the ore itself and its physical and mechanical properties. The ore is dense, the crystal is small, and the ore with high hardness is more difficult to grind. Therefore, in the process of grinding, such ore requires a long grinding t

Core Tip: According to data compiled by Gasgoo Automotive Research Institute, in November 2017, the passenger car market increased by 0.3 percentage points year-on-year, and SUV market sales increased by 7.6 percentage points year-on-year to 1,108,182 units. Meanwhile, in the total passenger car m

Germany has banned the sale of smartwatches that allow parents to keep tabs on their children, saying the devices go against the country's surveillance laws. Germany's Federal Network Agency advised parents to destroy the watches and said it has taken action against firms that sell the devi

Automech Formula 2017-ə dəvət Əziz Cənab / Xanım, Sizi Automech Formula-2017-də, Cairo Beynəlxalq Motor Show-da iştirak etməyə dəvət etmək mənim şərəf və zövq, Yaxın Şərq və Şimali Afri

New technology for iron removal and purification of washed kaolin : After years of research and experimentation, I have succeeded in the new technology of removing iron from kaolin mine. In principle, technically and technologically, it has solved the sorting and purifying technology of complex inf

Wirtgen's SP15 compact slipform paver is highly efficient, versatile and highly flexible. It has many advanced features and features tailor-made configurations and innovative construction processes and technologies. Wirtgen SP15 slipform paver Thanks to its compact shape, Wirtgen SP15 can be

The project budget is very important to the project developer. It will inevitably cause unnecessary waste in the budget, and even lead to corruption. If the budget is low, the construction progress will be affected, and even the payment of wages will be affected. Therefore, how to increase the bud

According to related statistics, about 75% of roof accidents of coal mine accidents in Fujian Province, in 2012, occurred in Fujian several large roof accident, roof accident is the first "six disaster" of small coal mines. It is undoubtedly of great significance to do a good job in the ma