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Cone crushers are also known as cone breakers. Compressive strength of cone crusher is no more than 250MPa.
Applied Materials: Granite, basalt, quartz stone, iron ore, pebbles, green stone, copper ore and limestone.
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Much of the focus on air pollution in South Asia is on vehicular pollution, and smoke – whether from burning agricultural fields to clear them, or from traffic. While this is an important aspect of air pollution, particularly as burnt particles produce a high level of particulate matter less than 2.5 microns (PM 2.5) in width, which can enter the bloodstream and lungs, another source of such pollution – stone crushing and the creation of fine dust particles, often also PM 2.5, is ignored
In Pakistan’s mountain communities the cost of the country’s development for many locals is asthma and other respiratory diseases, as well as both air and sound pollution, that comes from stone crushing machines working around the clock. These provide the raw matter for roads and buildings, but while those buildings and roads often benefit the urban inhabitants, it is the poor mountain communities in rural areas that pay the price
Shaukat Ali works as a principal at a private school in Abbottabad in Khyber Pakhtunkhwa (KP) in northern Pakistan. The school is located in the rural area, on the way to the well-known tourist resort Thandiani
Shaukat Ali claims that these machines are located near populated areas, and work 24 hours a day, creating a great deal of pollution, affecting the health of everyone living in the area, especially the children. “In our area more than twenty thousand people live in five thousand houses,” he said. “In every home you will find an asthma patient and children with respiratory diseases.”
He added that explosives were also used once every 24 hours. “After the blasts, a mountain of dust covers the area. Blasting and the crushing machines working for 24 hours are making us deaf; we can’t hear the normal noise.” Even a decent night’s sleep was denied to them
Nazir Khan, who also lives in the area, complained that their lives have become hellish, but despite many complaints to the authorities, there has been no action. “We want to sell our houses and lands to shift from the area, but no one is ready to buy even at the cheapest prices, at the same time living in the area means to invite diseases and death.” Two of Khan’s children are suffering from asthma
Applied materials: coal, pebble, limestone, dolomite, granite, construction waste, pebbles, glass, cement clinker, basalt, iron ore, quartz stone, coal gangue, etc. Its advantages: high capacity, ability to handle wet, sticky feeds
Roll crusher, as one of the most economical and practical crushers, is designed to handle the first and second crushing of friable minerals and stones such as coal, clay, coal gangue, limestone, slag, cement clinkers, and shale, etc.
According to the number of rollers, the FTM roll crushers can be divided into three types: single roll crusher, double-roll crusher, and multi-roll crusher. And the most common one is double-roll crusher.
Roll crusher is applied more widely than other crushers because of its small volume and cheap price. With the adjustable discharging system, it can be used flexibly in coarse and fine crushing processes of the industries such as cement, chemical engineering, electricity, mining, metallurgy, building materials, and others.
Roll crushers can adjust the wedge device between rollers to control the feed and discharge size of the machine. Also, it is equipped with a spring device to protect the crushing machine and avoid shutdown caused by overload and iron passing.
When the adjustable bolt pulls the wedge upward, the wedge pushes the movable roller away from the fixed wheel, then the gap between the two rollers becomes larger, and the discharge port becomes larger, and vice versa.
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