Stone crushing plant consists of vibrating feeder, jaw crusher, cone crusher, impact crusher, vibrating screen, belt conveyor and electric control panel etc. Its designed throughput generally is 50-600 th. Sand washing and other machines can be added to this line to meet the various customers requirements.Get A Quote
Jaw crusher is mainly used to crush all kinds of ores and medium-sied particles of materialsImpact crusher is used in coarse crushing, intermediate crushing and fine crushing of materials like limestone, coal, calcium carbide, quart, dolomite, sulfide iron ore, gypsum, chemical raw materials, etc.
Cone crusher improves the production capacity and crushing efficiency. It can be adopted to almost all types of materials from stone production to various ores crushing. Cone crusher can perform unparalleled crushing function in operations of coarse crushing, fine crushing and superfine crushing. Cone crushercan finely crush various ores and rocks with different high hardness, like iron ore, nonferrous metal, emery, bauxite, quart sand, brown aluminum oxide, perlite, basalt, etc.
Stationary crushing plant and mobile crushing plant portable crushing plant are available. Stationary crushing plant has fixed plant structures. Crushing processes are as followings.
Mobile crushing plant and screening plant are composed of primary crushing and screening station and secondary crushing, belt conveyor, etc. Mobile crushing station is an independent working unit, they can respectively assume their different responsibility, and the belt conveyer is responsible for material transmitting and piling up between each crushing station.
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Eljay Model Cone Crusher. Eljay 45 Classic Cone Crusher Mantle Numbers. 45 inch eljay cone crusher mobile crushers all over the 45 inch eljay cone crusher heavy industry is specialied in the design manufacture and supply of crushing more info 45 eljay cone crusher track mounted grinding mill eljay 54rollercone hydraulics concrete crusher.
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HP cone crushers can be easily adjusted for different production requirements Machines can operate with a fixed setting to achieve constant output gradation and continuously adjust the setting to keep power draw and crushing force at the HP cone crushers are the result, among other things, of their high quality steel.
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Feb 01, 2014nbsp018332Successful jaw crusher maintenance requires the right resources, the right tools and the right approach, says Bill Macini, a Telsmith service technician.. Certainly when an operation is down, whether for preventive maintenance or component failure, there is always the pressure to get the plant up and running as soon as possible.
Logging amperage draw to see if it changes from day to day. If amperage is exceeding normal levels, it could be a signal of bearing problems or loose belts. Additionally, log coast-down time daily. How long does it take the machine to come to a dead stop If the time starts to shorten, this could indicate a bearing problem.
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Cost-effective aggregate production begins with employees who are knowledgeable about the maintenance requirements and operational parameters of the cone crushers they operate. There are certain proven methods and practices industry experts use to ensure a smooth crushing operation. This article presents key tips that will help you maximie your cone crushing operation.
1. Operate at a consistent closed-side discharge setting. Producing a consistent product quantity, quality, uniformity and attaining a balanced circuit begins with operating the cone crusher at a consistent closed-side discharge setting. If a crusher is allowed to operate at a wider-than-optimum setting for even a short period of time, the result will be less product and an increase in oversied material.
Keep in mind that oversied product almost always creates circuit flow problems within the aggregate plant. An example of the effect that crusher setting has on the product gradation is as follows If the target crusher setting is 38 in. 10 mm but the setting is not checked and it wears open to 12 in. 13 mm, then the end result is a 15 percent decrease in the minus 38-in. 10 mm material sie. This is a substantial decrease in productivity.
Most aggregate producers would be amaed at the revenue lost each year due to the simple fact that crushers are not being operated at consistent closed-side settings. The crusher setting should be checked on a per-shift basis.
According to Metso, Nordberg HP Series cone crushers feature a combination of crusher speed, throw, crushing forces and cavity design. Photos courtesy of Metso.
2. Operate at a consistent choke-fed cavity level. If a crusher operates at varying cavity levels throughout the shift, the result will be an inconsistent product shape and inconsistent production rate. Operating a cone crusher at a low cavity level half cavity will result in a significantly coarser product gradation, and this low cavity level will also produce more flat and elongated product particles.
Efforts should be made to operate the crusher at a proper choke-fed cavity level, as the favorable end result will be increased crusher throughput tonnage and a more cubical-shaped product. This tip is particularly important for the tertiary short head crushers in the circuit, as they produce the vast majority of an aggregate operations salable products.
3. Do not trickle feed the crusher. Trickle feeding a cone crusher should be avoided because it not only results in poor productivity and poor product shape, but it can also adversely affect bearing alignment within said crusher. Due to the operational characteristics of a cone crusher, when crushing, it should never be operated below 40 percent rated horsepower. To obtain a proper loaded bearing alignment and to maximie productivity, the crusher should be operated above 40 percent rated horsepower yet below 100 percent rated horsepower of the drive motor.
A power draw of 75 to 95 percent is a great target range to stay within while crushing. Excessive power peaks, particularly above 110 percent rated horsepower, should be avoided as this could lead to premature crusher failure.
4. Ensure the feed is evenly distributed. The incoming feed material should be directed on a vertical plane into the center of the crusher. When the incoming feed is not directed into the center of the cone, one side of the crushing cavity could be quite full while the opposite side of the cavity could be low or empty. This will always result in a low crusher throughput tonnage, the production of more flat and elongated product particles and oversied product.
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