Aiming at the problem that the foreign matters on the belt conveyor in coal mine cause damage to the belt conveyor, a video detection method based on SSD is proposed. The SSD network is improved from the following aspects. First of all, the depth separable convolution method is used to reduce the parameters of SSD...
Design aids)... This paper analyzes a large capacity belt conveyor for overburden in lignite open pit and copper mine in underground mine... To find the best...
Conveyor belts are very dangerous because they can spread fire far away. Most of the fire on belt conveyor is caused by mechanical failure, such as ice formation of idlers, and coal dust is more dangerous. Fire safety requirements are similar in most hard coal mining countries.
Conveyor systems can be used to transport materials in underground and open-pit operations, especially in coal mines (Betz, 1998). The simplicity and reliability of the conveyor system make it an attractive alternative to traditional truck transportation.
Surface assisted continuous underground mining. By R.D. Peterson... This paper discusses the new technology of shaft auxiliary mining system, which allows the addition of conveyor structure and mining system from the surface to the working face for advancing and retreating mining of long wall, short wall or room column panel...
Cross hollow conveyor belt is an inclined conveyor belt located on the surface of underground mine. The conveyor belt transports raw coal or raw coal from underground coal mine conveyor belt (ාාාාාාාාාාාාාා1 conveyor belt) to the stacking pipe of raw coal storage area. The length of the cross hollow belt is about 310 feet.
This paper discusses the new technology of shaft auxiliary mining system, which allows the addition of conveyor structure and mining system from the surface to the working face for forward and backward mining of long wall, short wall or room column panel
The concentration limit of respirable dust in coal mine is reduced from 2 mg / m to 1.5 mg / M and from 1 mg / m to 0.5 mg / m...
Underground hard rock mining equipment; industrial minerals... HAC system is a proven method to transport materials vertically from tunnel operations to the surface... And single operation system. In both cases, the conveyor can be shortened or lengthened or the conveying angle can be changed as required...
Underground coal mines are usually located hundreds of feet below the surface of the earth's surface, which are transported by mechanical means to the surface via shuttles or conveyor belts. Underground station - an extension of a shaft entrance, roadway, or level where the cage stops receiving and discharging vehicles, personnel, and materials.
