JULI Engineering

Different stone crushers create a bright scenery line. The workers in this industry should pay attention to selecting the stone crusher. Some tips about selecting stone crusher are as follows. Hope these tips could be helpful to all the friends. At first, the environmental protection principle should be considered when choosing stone crushers. We should check whether there is energy-saving setting, not only the energy-saving setting for one machine, but also the energy conservation of system. The machine with features of low noise and less dust is the first choice for us. Secondly, we should choose the stone crusher with simple structure. Why choose simple stone crusher? If the stone crusher has something wrong, the maintenance would be simple. If the application is good, this is a good choice. According to the structure and operating principle, there are jaw crusher, impact crusher, hammer crusher, gyratory crusher and crushing mill. And for each type, there are different specific

EPC project's main advantage is the integrative operation including designing, purchasing, and construction. We could not separate these three items. We should integrate them to get the good effect. This is very common for EPC companies including project of stacker reclaimer, belt conveyor, screw conveyor , apron feeder and etc. The purchasing work should guarantee the quality, quantity, time of the project. We should receive required equipment, materials and related service through the reasonable price and proper supplying sources. During the implementation process, the professional persons should carry out the purchasing process. Through the standard purchasing working routine, intelligent management on contract and information management, the purchaser should meet the working of purchasing management. At the same time, the following points should be met. 1. Purchasing in good time: This could influence the long period of whole project progress and key equipment. The purchaser s

The market economy has been confirmed in China. The development of technology would be restricted by the market. However, the market is not mature, which is apron feeder will be listed in the production line to coordinate the transportation and management of materials. With the enlargement of the market, the automated warehouse with high grade management will pour out in the market. The designing of logistics system is so important for the future development of automated warehouse.  The goods shelf with better manufacturing technique will be improved and developed. The technology of automated warehouse will be renewed with the development of the market. At the same time, most EPC companies of automated warehouse would be helpful to the development of the automated warehouse technology. not only restricted by the demands. Especially for the automated warehouse project, the fund has become the most important thing. As the all walks of life develop, the automated warehouse has recei

The underground metal mining's history is so long. Three thousand years ago, the Chinese people started to mine copper. And two thousand years ago, the normative mining technology has occurred. In modern times, the underground metal mining technology was in state of backwardness. The manual work is the main method of mining. Until to the 1950s, the underground metal mining technology developed rapidly. In recent years, science and technology researches about mining method are carried out in China. We have gained much achievement in intermittent-continuous mining, stage large diameter deep hole mining, sub-deep hole mining, deep-seated mining, natural caving mining, leaching and mining, high-efficiency mine filling, rock support and reinforcement, mine control water, open-pit mining equipment and underground mining equipment. The technological level has been promoted with two main methods including opencast working and underground mining. The crushing machine, apron feeder, stacker

During the using of screw conveyor , some faults would occur. The fault analysis and related solutions are as follows: Feed Blocking: 1. The technical parameters of screw conveyor should be selected logically. For example, the rotating speed of screw conveyor should not be large. 2. The operators should execute the operating instruction, guaranteeing the no-load starting and parking with no-load. In this way, the materials could be entered continuously. 3. The discharge hole should be enlarged to solve the feeding block. 4. The cleaning should be carried out in period, preventing the large materials entering into the machine. 5. The hanger bearing's lateral dimension should be reduced to prevent the feeding block. 6. The silometer and blocking inductor should be installed to realize the automatic control and alarm. 7. The anti-blocking valve should be set in delivery end. When the materials are blocked, the valve could help to solve this problem. The Burn of The Driving Mo

There are four common stone crushers in mining industry including jaw crusher, gyratory crusher, impact crusher and baffle crusher. The jaw crusher is suitable for the coarse crushing and secondary crushing of hard rock. The principle of jaw crusher is that motor drives the belt and belt pulley, which forces motive jaw move to realize the purpose of crushing machine. With the continuous rotation of motor and periodic movement of motive jaw, the volume production could be realized . The jaw crusher is used as the first crushing machine in production line(coarse crushing). The gyratory crusher could be used for the secondary crushing and fine crushing of ores with higher hardness and medium hardness. The motor forces the eccentric bushing to rotate through driving device. The materials are crushed through many times' impacting. The baffle crusher's rotor rotates in high speed through the driving of motor. When the materials enter into the impacting area of board hammer, the

The underground metal mining's history is so long. Three thousand years ago, the Chinese people started to mine copper. And two thousand years ago, the normative mining technology has occurred. In modern times, the underground metal mining technology was in state of backwardness. The manual work is the main method of mining. Until to the 1950s, the underground metal mining technology developed rapidly. In recent years, science and technology researches about mining method are carried out in China. We have gained much achievement in intermittent-continuous mining, stage large diameter deep hole mining, sub-deep hole mining, deep-seated mining, natural caving mining, leaching and mining, high-efficiency mine filling, rock support and reinforcement, mine control water, open-pit mining equipment and underground mining equipment. The technological level has been promoted with two main methods including opencast working and underground mining. The crushing machine, apron feeder, stacker

The payment terms in EPC project are very complex, especially for EPC companies supplying stacker reclaimer , apron feeder, screw conveyor and other large materials handling equipment. According to the time, there are advance payment, interim payment, provisional acceptance, guarantee period and etc. For each stage, we should meet the payment conditions required. Especially for interim payment, it will involve in civil engineering, supply of equipment, installation, training and etc. Because of different content, we may meet some restrictions in payment terms. Some payment may involves in the change in workload, the change in working range, the change in price and change in payment because of fine. So the main contractor of EPC companies should fully understand the meaning of payment terms and have capacity of calculating the amount of payments. Otherwise, even if the main contractor completes the whole working of project, he may could not get all the payments from the owner. In add

The pulley is regarded as the transmission mechanism of belt conveyor, also one of the conveyor components . It has many advantages and features, with bright prospect. Because of some limitations on power parameters and technical reason, the pulley of belt conveyor design has a series of problems, which limits the development of conveyor pulley. The drive pulley is the spare part of belt conveyor, which conveys power and torque. In the actual belt conveyor design, we should carry on the intensity check and force analysis to the pulley. As a result, during the design of drive pulley, we should fully consider the structure of transmission shaft, support, load and other factors, simplifying the structure and building suitable mechanical model. The bend pulley is used to change the operating direction of the conveyor belt. Besides, the bend pulley could compress the belt, increasing the rubber coating with drive pulley. The slipping between belt and drive pulley would result in the wearin

The bucket wheel stacker reclaimer equipment includes stacker reclaimer , reclaimer, stacker, blending reclaimer, and portal stacker reclaimer. The stacker reclaimer is widely used by most companies. Because stacker reclaimer has many functions, which could meet various demands. The basic function of above equipment is stacking or reclaiming materials. The stacker reclaimer has both functions. The stacker has stacking function, while reclaimer has reclaiming function. The blending stacker reclaimer also has the blending function, which could meet the requirements of blending materials. During the actual operation, the stacker reclaimer is located in the beginning end or finishing end of the materials handling system. The most common technological process is as follows: 1. Unloading of tippler- Belt conveyor system-Stacking materials in stock ground-Reclaiming materials of reclaimer-Belt conveyor system- Lading of ship loader 2. Unloading of tippler-Belt conveyor system- Stacking

The EPC project includes the design and purchasing. When signing the EPC contract, the EPC companies only give the description of the project function. The exact scope of purchasing and specifications could not be showed in contract, which puts hidden danger in the future. As the general contractor, he should protect himself through exact terms in contract. The problem easily neglected is spare parts carried in EPC contract. Because the spare parts could not be confirmed when signing the contract, some owners put forward part lists and quantity according to reference project. However, the general contractor would find that the equipment confirmed by bidding will be different from EPC contents. There will be the following several situations. The spare parts required by owner is not suitable for actual equipment. The spare parts matching with equipment are not listed in the contract. The quantity of spare parts listed in contract are different from the actual demands. What's wors