JULI Engineering

The belt conveyor roller could adopt the black rubber belt, which could be used for transporting materials in bags, sand and gravel, coal briquette and etc. Most EPC companies could realize the positive and negative transportation through increasing gib block below. Besides, we could realize the transportation of bulk materials by adding the dam-boards. The roller is the important part of the conveyor. The roller has many types. The quality of roller directly influences the quality of conveyor. The roller determines the performance of conveyor and service life of conveyor. The structure of roller set confirms the load bearing of conveyor.  The basic requirement of roller includes reasonable structure, wear well performance, better dustproof performance, good waterproofness and reliable performance. The bearing should have good lubrication, light weight, small steering resistance, low fabricating cost and smooth surface. The function of roller is supporting conveyer belt and the ma

The development of modern logistics is the precondition of creating and development of automated warehouse , which is suitable for the development of industry and technology. The modernization production promotes the socialization, specialization and specialization of production. The mechanization and automation require that the supplying of goods and materials should be timely, quick, and accurate. In this way, the development of automated warehouse is promoted. For the arrangement of space, we should make classification first, knowing the using direction of each location. Then we should assess the importance and design the layout. If the space is limited not changing the planning and design, we should let the present space's use ratio fully used. The requirements of goods shelf are high. The appearing of automated warehouse drives the development of goods shelf. Good automated warehouse should follow the principles as below.  The high performance and low cost is considered. 

The main faults of reclaimer focus on the bucket-wheel and running mechanism. The bucket-wheel component of each reclaimer includes reclaiming hopper, wheel body, rollaway nest, chain wheel, tension device, actuating device, supporting roll, side roll, supporting wheel of trolley. The main fault form is the sharp wear of supporting wheel and supporting roll. The reasons and solutions are as follows: The water content of materials is large. The freezing of base and material pile would result in the rapid change of materials. The solution is making the reasonable proportion to the dry and wet materials, reducing the freezing of materials base.  If the clearance adjustment check is not done timely, the interval will be over the standard.  The solution is measuring the interval in regular time. If there is something wrong, we should arrange the related persons to make adjustment or make replacement.  The rollaway nest surface evenness of wheel body exceeds the standard, which is a

The conveyor belt is the bearing carrier and traction component of the belt conveyor(not including steel wire rope traction). The conveyor belt should have the carrying capacity and enough strength of extension. The framework and coating make up the conveyor belt. The coating is divided into upper cover glue, edging glue, and below glue. The framework of conveyor belt is made up of various fabrics or steel wire ropes, which are the backbone layers of belt bearing the total load of working. In this way, the core materials of belt should have enough strength and stiffness. The coating is used to protect the core materials from damage of harmful medium. The upper cover glue is thick, which is the bearing layer of conveyor belt. It directly contacts the materials and bears the impact of materials. The below glue is a contacting layer of belt and idler, which bears pressure. In order to reduce the resistance, the below glue layer is thin. The edging glue could protect the belt core materia

In general, the apron feeder could be divided into three types including heavy, medium, light type, which is the continuous transportation machinery widely used in mining, metallurgy, construction materials, ports, coal and industrial and mining enterprises. The apron feeder is mainly used as the storage bunker to continuously supply the materials or transfer large material to crushing machine or batching apparatus. The apron feeder is one of necessary machine for handling materials in the process of continuous production. Sometimes some EPC companies would choose stacker reclaimer, belt conveyor, stone crusher and etc to complete the transportation of materials. The light apron feeder is suitable for transporting materials under 160mm granularity in short distance. It is used for continuous feeding in mine, mill plant, chemical industry, cement, building materials. The light apron feeder could be installed horizontally or obliquely. The maximum inclination degree is 20, which is su

The conveyor belt is the bearing carrier and traction component of the belt conveyor (not including steel wire rope traction). The conveyor belt should have the carrying capacity and enough strength of extension. The framework and coating make up the conveyor belt. The coating is divided into upper cover glue, edging glue, and below glue. The framework of conveyor belt is made up of various fabrics or steel wire ropes, which are the backbone layers of belt bearing the total load of working. In this way, the core materials of belt should have enough strength and stiffness. The coating is used to protect the core materials from damage of harmful medium. The upper cover glue is thick, which is the bearing layer of conveyor belt. It directly contacts the materials and bears the impact of materials. The below glue is a contacting layer of belt and idler, which bears pressure. In order to reduce the resistance, the below glue layer is thin. The edging glue could protect the belt core mate

The stacker reclaimer is a continuous bulk materials handling equipment, which is widely used in port, metallurgy, cement, steelworks, coking plant, coal factory, power station and etc. Sometimes, the stacker reclaimer coordinates the belt conveyor, apron feeder to complete the materials handling process.  The center pillar is regarded as the center of cantilever stacker. One end is steel structure belt conveyor and the other end is balance weight. The stacker is connected with rotation device, realizing the rotation through the engaging between small pinion of rotary actuator and gear ring of large bearings. The materials entering into the round yard would be unloaded to the stock ground through the head of cantilever belt conveyor. The materials probe is set in the two sides of discharge opening. If the top surface of material pile touches the probe, it shows that the material pile has reached the designed height. The pitching of hydrocylinder is adopted by stacker, whose advant

With the rapid development of national infrastructure and industrial construction, the type of stone crusher and related manufacturers emerge in endlessly. In this way, the users have more choices. At the same time, the customers do not know how to choose the suitable stone crusher. For a gravel plant, the stone crusher with different production and function will be used to meet the production requirements. But how to choose to suitable stone crusher which would meet the production requirements?  Character of Stones The hardness, silt content and water content of stones are the important data for selecting the equipment. If the hardness of stone is large, we could choose jaw crusher or gyratory crusher. If the hardness of stone is small, we could choose impact crusher, which could save the cost and increase the production efficiency.  Requirements on Product Quality The requirements of granularity and stone shape of finished product also influence the selecting of the stone

In summer, the high temperature will bring difficulties to the usage of mining equipment. The user should prevent high temperature of mining equipment in advance. What problems will appear in summer? The high temperature of water tank and engine would result in the damage to the cooling system, hydraulic system, circuit, and tire. In this way, the use ratio of mining equipment would be reduced and failure rate would be increased, which increases the construction cost. We should do high temperature protection of mining equipment in advance.  Firstly, we should maintain the mining equipment. We should change the engine oil of apron feeder, stacker reclaimer , belt conveyor , screw conveyor . The belt should be changed or adjusted. We should check whether the performance of fan, water tank, generator, compressor is reliable. If necessary, we should do maintenance or change.    Secondly, we should increase the viscosity grade of the equipment in high temperature zone. The cooling sy

The EPC means that one company undertakes whole process of work including investigation, design, procurement, construction, commissioning (completion and acceptance) and etc from the end user. Besides, the working content, task and responsibility will be showed in the contract. Most EPC companies would know the following contents. According to the different designing scope, EPC mode has many forms including EPC with all designs, EPC with partial designs, EPC with relay mode design and etc.  Under the EPC with all designs, the user would propose the functional requirements for the future project. The EPC companies would complete all designs, purchasing, construction, pre-operation and other work.  Under the EPC with partial designs, the user need to propose the functional requirements and do some designs. The EPC companies would complete the rest of working such as detail of construction/Detail Design, purchasing, construction, pre-operation and other work.  Under the EPC with

The screw conveyor is a kind of common continuous conveying equipment without driving component. The screw conveyor is widely used in metallurgy, mining, motive power, building materials, light industry, wharf for transporting bulk materials such as coal, ores, grains, sand, chemical fertilizer and etc. The screw conveyor has many types, much architectural difference,  and many designing parameters. Besides, each parameter has interrelation and restrict, which makes the design and selection complex. We should consider following points when choosing the screw conveyor.  1. delivery capacity The delivery capacity means the volume of materials conveyed in unit interval. If the material is bulk material, it will be calculated according to mass or volume. If the thing conveyed is product in piece, it will be calculated according to quantity. If the screw conveyor is matched with linear vibrating screen, spin vibration sieve, ultrasonic vibrating screen and etc, we need to calculate

EPC means that one turnkey company is responsible for prospecting, designing, purchasing, constructing, commissioning, and other process. The working content, responsibility, tasks will be  explicitly stipulated in contract form. Internationally, project general contracting in petroleum, chemical, electric power and other industries is called as EPC. Most EPC companies would choose large project to earn money such as contracting the construction of stacker reclaimer . Sometimes, EPC companies would serve for materials handling industry such as the design and manufacturing of pipe conveyor . According to the practice at home and abroad, mature EPC companies should have following features.  The operating income mainly comes from providing project services(including project contracting and project management) to the end user.  The business range covers the total process of project including preliminary consultation, design, purchasing, construction, commission, EPC, PMC, PM and o

The automated warehouse is a kind of automated storage and retrieval system fully controlled by computer, which could take full advantage of space to realize the most stocking capacity, supermatic stocking, high speed stocking and the integration of information. In the future, the automated warehouse would have new improvement, which is preferred by EPC companies.  The automation level of warehousing and storage activities will be increased. The advanced country has obtained the large achievement because of supermatic industry and the wide application of computer. The application of computer and related controlling device would greatly increase the automation level of warehousing and storage activities. With the further development of production, the requirements of logistics system will be strict. It should be ok to supply exact products in fixed time and place according to right order. In order to realize it, the automation level of warehousing and storage activities should be in