Many EPC companies will provide service for mining equipment manufacturers such as belt conveyor manufacturer, stacker reclaimer manufacturer, apron feeder manufacturer, and etc. EPC companies usually adopt project management. And there are three restraints in the project management.
1. Project scope restraints The project scope is what the assignments of the project. As the project manager, he should know the key of commercial profit and the expectation service of the clients. Facing the project scope restraints, the leader should manage it through the commercial profit. The leader should avoid the unprincipled changing of project scope and change reasonably the project scope according to the time and cost. 2. Project timing restraints Project timing restraints means how long it will take to complete the project and how to arrange the project's process. When the process has difference with the planning, some new arrangement should be done to guarantee the quality of the project. When considering timing restraints, project manager should study the cost influences because of the timing causes. And the timely tracking to project is necessary to provide an accurate report. 3. Project cost restraints The project cost restraints mean how much it will spend in completing the project according to the stipulations. When the project scope and project time change, the cost will change also. The project manager should know the cost change and decide whether change the scope of project, project process, and increase the project investment. In most cases, many people pay attention to the project process while think little of the cost management. The cost estimation and analysis are left out by many people, resulting in the situation that related people could not see the wasting of resources. So it is so important to manage the project cost.
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Recently, many cement manufacturers use power cable and controlling cable, which are installed in slip ring. They conducts power source and sends controlling signals. With burn-in and dusty influence on cables, the failure rate of cable and slip ring is becoming higher. The features of this system are as follows:
1 It is designed to meet the controlling of stacker reclaimer. This wireless control system is dependently developed by our company. It could completely replace signal transmission device of control cable and slip ring, realizing wireless control. At the same time, the maintenance is easy, saving the various costs. 2 High reliability The Ethernet network controlling system could guarantee the error-free transmission and decoding. And it could realize remote online and monitoring of stacker reclaimer, reducing the time of fault handling. The longest communication distance could reach 200m, meeting various complicated scene requirements. 3 Good anti-interference capability This system pays attention to the development of anti-interference products. In the course of transmitting signals, every signal adopts the densification treatment. 4 Convenient installation and easy maintenance The installation is very convenient. There are few connection. And there is no need to change the connections of original stacker reclaimer. In most conditions, stacker reclaimer is used along with screw conveyor, belt conveyor and other mining equipment. In the future, the conveyor components will be also advanced. The advantages of EPC model are as follows:
1. EPC contractor is responsible for the implementation process of project. This could helps the planning and collaborative operation of the overall project. And many problems could be solved. For example, the connection problem between design and construction could be solved effectively, reducing the intermediate link between purchasing and construction. In this way, the contradiction among practicability, technicality, security could be solved also. 2. The limit between working range and responsibility is clear. And the responsibility and risk during the construction period could be transferred to the general contractor. 3. The total prices and duration of the contract are fixed. This could help the control of expense and progress. 4. The advantages of project management could be showed, realizing the various objectives of project management. 5. The owner could be free from the specific affairs and the pay attention to the important factors influencing the project, finally ensuring the general direction of project management. The disadvantages are as follows: 1. The owners seldom participate in the project, and the control degree is also low for the owners. 2. The owner transfers the risk to the EPC companies. So it is important to choose the right EPC companies. Because if the EPC companies have the serious financing problems, the project will be at risk. 3. EPC companies have to take on the responsibility and risks. So the cost of EPC companies will be higher for the owner. 4. The owners of the traditional construction mode will be more difficult to understand the works of the EPC companies. So that is all for this blog. More information about EPC companies could be found in this site. So that is all for this blog. More information about EPC companies could be found in this site. And in the next blog, the mining equipment will be introduced and the belt conveyor design and apron feeder will also be referred to. The belt conveyor mainly includes pipe conveyor(pipe belt conveyor), downwards transportation belt conveyor, plane turning belt conveyor, coal mine belt conveyor. The belt conveyor is basic mechanical equipment in the mining working. It could convey materials for various mining equipment, such as stacker reclaimer. It could be regarded as the link among various mining equipment. The belt conveyor has features of simple structure, and easy maintenance. It consists of conveyor belt, pulley, idler, frame, tensioning frame and sweeper. The pulley of belt conveyor could be divided into transmission pulley and bend pulley. The transmission pulley is connected to the motor and reducer, while the bend pulley controls the conveying direction.
The conveyor pulley, as one of the conveyor components, uses multi-metal wear-resisting material that is coherent to the surface of pulley instead of the conventional rubber layer. Standard life span can reach more than 50000 hours (6years). As per GB/T 10595-2009 (equivalent to ISO-5048), life span of pulley bearing shall be more than 50000 hours which means clients can maintain the bearing and pulley surface at the same time. Max life span can be more than 30 years. The surface and internal structure of multi-mental wear-resisting material is porous. The groove on the surface will increase the resistance coefficient and slip resistance. Conveyor pulley has a performance in heat dissipation especially in high temperature condition. Decay resistance is another advantage of drum pulley. It can also achieve a good performance at the seaside or some other complex condition. High hardness of the surface will prevent the foreign body(scrap iron or dina) from inserting into the pulley and protect the belt thereby. Conveyor pulley is one of the conveyor components, it plays an important role in the production.
The Conveyor pulley uses multi-metal wear-resisting material that is coherent to the surface of pulley instead of the conventional rubber layer. Standard life span can reach more than 50000 hours (6years). As per GB/T 10595-2009 (equivalent to ISO-5048), life span of pulley bearing shall be more than 50000 hours which means clients can maintain the bearing and pulley surface at the same time. Max life span can be more than 30 years. The surface and internal structure of multi-mental wear-resisting material is porous. The groove on the surface will increase the resistance coefficient and slip resistance. Conveyor pulley has a performance in heat dissipation especially in high temperature condition. Decay resistance is another advantage of drum pulley. It can also achieve a good performance at the seaside or some other complex condition. High hardness of the surface will prevent the foreign body(scrap iron or dina) from inserting into the pulley and protect the belt thereby. In the next blog, I will share some information about stacker reclaimer, especially Portal Scraper Reclaimer. Belt conveyor is a kind of equipment transporting materials through the friction drive. Our company mainly has the following types about belt conveyor. Downwards transportation belt conveyor, plane turning belt conveyor, coal mine belt conveyor, pipe belt conveyor(pipe conveyor) and other conveyor components are the main products of our company. The belt conveyor mainly consists of frame, conveyor belt, roller, pulley(drum), tensioning gear, and transmission. Users could place the materials on some conveying line, forming a transporting process from the original feed point to the final unloading point. It could convey bulk materials as well as pieces of goods. Besides the materials handling, it also could coordinate with other industrial processes in the enterprises, forming the complete line production. According to the principle of friction drive, the belt conveyor could operate normally. It is suitable for conveying powder, granule, small blocks, materials in bags with stacking density under 1.67 ton/cubic meter, such as coal, macadam, sand, cement, chemical fertilizer and grains. The suitable using temperature of belt conveyor is between -20℃ and +40℃. The temperature of the materials to be conveying should be under 60℃. We could manufacture the customized belt conveyor according to the different requirements from users. JULI, as one of the EPC companies which integrates designing, purchasing, and manufacturing, has accumulated much experience in the mining equipment, especially for the designing and manufacturing of belt conveyor and stacker reclaimer. About the stacking and reclaiming materials, our company could supply matched stacker reclaimer according to the area and shape of stock bin, increasing operation rate to the high limit. At the same time, JULI could related products according to different applications. Then next let us know some knowledge about belt conveyor.
Belt conveyor is the main equipment of coal industry. The belt is the most important component of the belt conveyor. The belt runs through the belt conveyor. The belt is not only the hauling mechanism, but also the carrying mechanism. The quality of the conveyor belt has an important influence on the performance of the belt conveyor. Besides, the price of the belt is pretty high, accounting for about 50 percents to 70 percents of the cost of the entire equipment. The practice has showed that there are so many changing in belt because of the damage. Then the user should know how to prolong the service life of conveyor belt in order to improve the entire equipment. So the repairing methods are as follows. A. Use the glue to cement together B. Strengthen the tear C. Dig the hole in the damage and fill the hole with good belt. Then the next blog will introduce the specific operation of these three operations. Please find detailed information in the following blog. Many users of mining equipment want to increase the efficiency of belt conveyor. The basic solution is good belt conveyor design. For example, we talk about the turning belt conveyor here.
Turning belt conveyor is widely used by several industries because of its special function. The design principle of turning belt conveyor is different than the normal belt conveyor. The design thinking and principle are more complicated. Belt conveyor is mainly applied in the mining, chemical, metallurgy and other industries. In most situations, the belt conveyor is not set in the linear type, but in the conditions of certain curving. The middle of the belt conveyor may involve in mutual matching of various equipment. So we should consider the site layout of belt conveyor to complete the belt conveyor design, reaching the requirements of users. This kind of belt conveyor has the obvious advantage, that is high efficiency. For the most EPC companies, they prefer designing the turning belt conveyor to the normal belt conveyor. Because this design could bring the users most saving cost in investment of equipment. So if you want low cost, choose the turning belt conveyor, a good belt conveyor design. For the mining industry, there are a lot of things we should know about. The basic things to know are as follows: Belt conveyor design plays a critical role in the enterprises manufacturing belt conveyors. A good design could have many advantages such as safety, stability, and low cost. So if you want to manufacture the good belt conveyors, you must find a good designer to help you. A good start, then a good ending. Among various conveyors, the pipe conveyor has obvious features. One of the main features of pipe conveyors is preventing raising dust. In the big projects where it is so dusty, many companies choose pipe conveyor. Sometimes, belt conveyor has to be applied in the stacker reclaimer. There are so many types of stacker reclaimer such as bucket wheel stacker reclaimer, bridge bucket stacker reclaimer, side stacker, scraper reclaimer. According to the different method of reclaiming, scraper reclaimer could be divided into side type, bridge type, gate-type scraper reclaimer. Among these, the bridge scraper reclaimer adopts blending reclaiming. It has a better performance. So have you had a basic knowledge about conveyor and stacker reclaimer? If you want to know more information about mining equipment, please kindly pay attention to my blog. |