The impact type sand making machine is used for artificial sand making equipment. According to the condition of the material and the finished product requirements, it can be counter-attacked, which can be cone-breaking or impact crusher. According to the degree and scope of application of the industry, impact type The crusher is the most widely used mechanism sand equipment, so the industry is often called the impact crusher is the sand making machine.
Impact crusher working principle
Impact crushers have several working methods. Various methods are applicable to different materials, and the mechanism of crushing materials by impact crusher is summarized:
1. Free impact crushing
The material enters the crushing chamber and is impacted by the high-speed plate hammer and the mutual impact between the materials, as well as the friction between the plate hammer and the material. The material is broken along its fragile surface in a free state within the cavity. The dust generated by the impact crusher is also caused by the impact of the block group in space.
2, counterattack broken
The impact of the hammer on the rotor rotating at high speed allows the material to achieve a high speed of movement and then strikes the counterplate to further break the material. The flow of material that bounces back from the counterplate is determined by the counterattack curve.
3, milling and breaking
The material enters the plate hammer crushing section, and the bulk material is crushed and thrown by the high-speed rotating plate hammer one by one. In addition, the material that has not broken more than the size of the discharge port by the above two kinds of crushing effects is also crushed by the high-speed rotating plate hammer at the discharge port.
The so-called Pharmaceutical Intermediates are actually some chemical raw materials or chemical products used in the process of drug synthesis. This kind of chemical product does not require a pharmaceutical production license and can be produced in an ordinary chemical plant. As long as it reaches a certain level, it can be used for the synthesis of pharmaceuticals.
Our country needs more than 2,000 kinds of raw materials and intermediates for chemical industry every year, and the demand is over 2.5 million tons. After more than 30 years of development, the chemical raw materials and intermediates required for the country's pharmaceutical production can basically be matched, and only a small part of it needs to be imported. Moreover, due to my country's abundant resources and low raw material prices, many intermediates have been exported in large quantities.
On the one hand, product updates in this field are fast. Generally, after a product has been on the market for 3 to 5 years, its profit margin will drop significantly. This forces companies to continuously develop new products or continuously improve production processes in order to maintain a high production profit; on the other hand, due to the production profit of pharmaceutical intermediates Higher than chemical products, the production process of the two is basically the same, so more and more small chemical companies have joined the ranks of producing pharmaceutical intermediates.
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