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Development History

The development history of ball mill Ball mill appeared in the early 19th century; in 1870 the mill, based on the development of a uniform size marker rod mill; in 1908 it created a self-mill without grinding media. 30 to 50 years the twentieth century, the United States and Germany have developed a roll mill, mill and other vertical type disc pulverizers roller bowl. This year is mine mineral processing equipment as an essential part of the ball is more rapid development of the. Ball mill is the material being broken, and then smash the key equipment. It is widely used in cement, silicate products, new building materials, refractory materials, fertilizer, ore dressing, and black glass ceramic and other non-ferrous metal production industries, and other various ore grindability of materials for the dry and wet grinding. Ball mill is a horizontal rotating device, outer gear, the two positions, lattice-type ball mill. Material from the feed device into the compound by air evenly into the mill screw shaft first warehouse, the warehouse there are ladder liner or corrugated liner, built in different specification steel balls, cylinder to convey ball into the action must generate centrifugal force After the fall height, produces severe impact on the material and abrasive. High-energy ball mill from the feeding part, discharging Department, Rotary Department, Transmission Division (reducer, small transmission gear, motors, electrical control) and other major components.

The hollow axis adopts high-energy ball mill steel body, which Chen can’t replace them, slewing gear hobbing by casting process, the body inlaid cylinder liner wear, has good wear resistance. High-energy ball mill smooth operation, reliable work. By high energy ball mill, stress, strain, defects, and a large number of nano-boundary, boundary, and makes the system phase grain to high energy storage (up to a dozen kJPmol), greatly increased activity, and even powder induces heterogeneous chemical reactions. System currently implemented in many low-temperature chemical reaction, the successful synthesis of new substances. Has been developed by mechanical chemical surplus saturated solid solution, intermetallic compounds, amorphous alloys and other functional and structural materials, has also been used in many high – active ceramic powders, nano-ceramic matrix composite materials research. There are step liner palates or wave liner palates in the first cell which has been loaded various steel spheres of different scales. When rotating, the drum causes centrifugal force that brings the steel spheres to a certain height and then the spheres drop to impact and grind the materials. After the rough grinding in the first cell, the qualified partials will enter into the second cell through a single plate division.There are flat palates welded on the inner wall of the second cell, as well as steel spheres. The materials will be further grinded in it and at last the qualified will be discharged through the unload part granularities. Then the whole process is completed. We provide Professional technology, excellent product quality and intimate after-sales service when you purchase Sand washing machine, Dryer machine, from our company.As a professional mining machinery exporter, we will win your trust with our delivery speed, Enterprises Credit and product quality.

Input Automatic Doors

The importance of an input: automatic doors in modern buildings, the main entrance forms an integral part of the design. Back they have been days that entries could be permanently open and unsafe or not monitored. Now, automatic doors, with concerns about the use of power and security control, are an integral part of the design of an entry and its functionality. Many of the buildings in big cities now must include sustainable and reliable systems of energy saving in your design. To achieve this objective, an automatic door in a building can be designed with double glazing or even thermally isolated, with aluminium structure. These systems help to improve thermal efficiency. For large sliding automatic door entries, opening distances can be programmed to also limit energy costs. The opening width can be adjusted in the automatic doors to various external factors such as wind, rain, sensors of temperature, and even by the number of people entering the building.

An entry that incorporates an automatic revolving door also provides a very efficient climate control by allowing people to enter and leave the building without altering the inside air conditioned environment. Previously, control security and surveillance was only mandatory for projects of large scale such as airports, Government facilities, and banks. It is now one consideration more and more in the design stage of a building entrance that can help solve the automatic doors. Automatic doors and the control of movement of people now extends to hospitals, offices and shopping malls. Typical security checks of an entry can include automatic unlocking of an automatic door in the morning and its automatic closure at night.

There is also a function of partial lock that allows the transfer of goods or documents through a partial opening blocked, to the while avoiding the unauthorized entry of a person. In some high security applications, an automatic door may be necessary to block immediately to close if it detects a person who wants to enter by force. Automatic entry doors may also be provided to the owners of stores with unique characteristics of security and alarms. An entry with automatic door in a gasoline service station, for example, can tell staff if a customer requires entering the building during the night, when security is more critical. At night, the automatic door stays closed, allowing staff to fulfil its tasks in a safe place. If a customer approaches the door closed, the alarm may sound, and notify operator, the operator can press a button on the remote control that is used as a pendant to unlock and open the door. An automatic door entry can also be critical for the control of ventilation of the air during a fire emergency. You can open automatically, providing fresh air and an escape route, or can be configured to close to limit smoke extends throughout a building, and help in the containment of the danger. If the goal is to reduce energy consumption through climate control, or is a question of planning of evacuation or security control, a well-planned design input is essential to ensure the proper functioning of a building and optimal efficiency. For more information visit our web page Aprimatic Doors SL street of Juan Huarte de San Juan, 7 28806 Alcala de Henares 918 82 44 48

The Structure Features Of Symons Cone Crusher

The Structure Features of Symons cone crusher Symons cone crusher is a kind of high efficiency spring cone crusher, which integrate optimization of cavity-type and reasonable stoke and advanced technology, and follows the conception of laminated crushing principle of more crushing and less grinding. Symons Cone Crusher made plaster stone and engine oil separated, assured reliable performance. The type of crushing chamber depend upon the size of feed and fineness of the crushed product. The standard type is applied to crushing, the medium type is applied to medium or medium fine crushing and the short head is applied to fine crushing. The symons cone crusher has the advantage of reliable construction, high prod activity, easy adjustment and less cost in operation. The spring release system of crusher acts an overload protection system that allows tramp to pass through the crushing chamber without damage to the crusher, use dry oil, water, two kinds of sealed formation. or higher productivity, better reliability, and flexibility, longer service life, and better final product quality, the Symons type cone crusher is absolutely your best choice.

Symons type Cone crusher offer several outstanding features such as excellent tramp release system, unique hydraulic lifting system, all of these features ensure the Symons type cone crusher offer the unbeatable performance in secondary, tertiary and quaternary applications. The innovations like stable lubrication system, excellent feature, evidently sealing reduces the production cost per ton hour material processed in. All of these can help you to achieve the highest level of profitability. S Series Cone Crusher Structure Features 1. Multi-crushing cone crusher chamber:Symons has a special design with three types of chambers; as to the differnet situation, users can choose the crushing chamber which can ensure high effiency, evenly size, long service life, and the abrasion of the mantle evenly. 2. Dry oil dust seals: Unique structure to dust, the reliable sealing seal extended the lubricants repalcement cycle and the service life of the removals. 3 High crusher key components made of the special materials power:The speed up the crushing cavity s working process. 4 High production: Long arms and the long distance compact crush reduces the load of the sliding berarings, gears and rack. 5 Low cost operation: Hydraulic-cavity system, which is easy to operate, lowering the off – time, with the low consumption and reasonable arragement.

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