JULI Engineering

As we all know, the preparation mining equipment could be divided into crusher(cone crusher, jaw crusher, box-type crusher, impact crusher and etc.), grinding machine, screening machine, separating machine, dewatering machine and other various production lines. The screw conveyor has played an important role in mining industry. So here I want to share some tips about maintaining conveyors. Things to look for can include foreign materials trapped or hung anywhere near the belt surface, unusual noises that are sometimes hard to detect due to noise levels in the facility, or visual damage that has not been noticed during earlier inspections. Also remember that areas of the conveyor that are not easily accessible are the areas that are consistently missed during inspections, so make the extra effort to check these areas. Another part of the conveyor maintenance puzzle is stocking conveyor replacement parts. While the need to stock every part of a conveyors make-up is unnecessary, i

For the EPC companies , how much you know? EPC means engineering, procurement and construction. EPC companies show the contract model. In other words, EPC is a kind of contract model not an enterprise. Basically, designing institutes carry out EPC contract in the domestic. Sometimes construction units do EPC contract. Then some companies may have the title of EPC, which proves the strength of the company. A good belt conveyor design could help users a lot. The Sweeper Features of Belt Conveyor:  Excellent scraping effect is one of the many good features. The scraper adopts TPU composite. The scraper blade has many advantages such as smooth surface, accurate straightness, low friction, high abrasion proof and high intensity, which makes it have stable scraping effect. It could effectively eliminate residual fines and sticky materials on the belt. Preloading voltage regulator ensures the stable contact pressure between scraper and belt. The surface of scraper is made up of severa

In the mining industry, there are so many machines, such as stacker reclaimer. About the stacker reclaimer, the stacking and reclaiming could be realized through central control room and on-machine control room under the automatic control of stacker reclaimer. When needing central control room to control the automatic operation, operating personnel press the button of automatic operation and then start button. The electric equipment of stacker reclaimer would start according to the predetermined procedure. The overall unit operation enters into normal automatic operation. On the platform of central control room, users could start or stop the complete machine system of stacker reclaimer just through pressing button. The set of equipment adopts three operating modes: automatic control, manual control, on-site control(maintenance). Each control mode is realized through change-over switch. Compared with the common belt conveyor, pipe conveyor has the following advantages. (1) Th

Many people always hear about EPC. However, does everyone know well it? EPC means engineering, procurement and construction. EPC companies show the contract model. In other words, EPC is a kind of contract model not an enterprise. Basically, designing institutes carry out EPC contract in the domestic. Sometimes construction units do EPC contract. So if you have a clear knowing about EPC? Then let us come to the next topic-mining equipment. Compared with the common belt conveyor, pipe conveyor has the following advantages. (1) The pipe conveyor adopts the sealing conveying, which could leave out the cost of building gallery of common belt conveyor. At the same time, it could prevent materials from rainwater and wind blow. And the harm to environment could be avoided. (2) The pipe line could bend in horizontal plane or vertical plane, the max angle of bending reaching 90 degrees in horizontal plane. The minimum bend radius is 300 times as long as pipe diameter. (3) It could

Many machines are applied in the mining industry . The preparation equipment  in mining could be divided into crusher(cone crusher, jaw crusher, b ox-type crusher, impact crusher  and etc.), grinding  machine, screening machine , separating machine, dewatering machine  and other various production lines. About the screw conveyor , the introduction is as follows: T ransport capacity  is an important indicator of measuring the capability of s crew conveyor . The transport capacity could be calculated through the following formulas: Q=47D²S.n.ψ Q—— transport capacity  (t/h) S—— pitch ， m D——diameter of screw blade (m) N—— speed of spindle  (γ/min) ψ—— activity coefficient The friction  and adhesiveness  of materials, screw pitch, and center line  inclination of screw conveyor influences the activity coefficient . 1. For the materials that are flowing and not wearing( such as flour, grain), ψ =0.45； 2. For the materials that are with graininess  or small pieces and partly we

The Sweeper Features of Belt Conveyor: Excellent scraping effect is one of the many good features. The scraper  adopts TPU   composite . The scraper blade  has many advantages such as smooth surface, accurate straightness, low friction, h igh a brasion p roof  and high   intensity , which makes it have stable scraping effect. It could effectively eliminate   residual   fines  and s ticky material s on the belt. Preloading voltage regulator  ensures the stable contact pressure between scraper and belt. The surface of scraper is made up of several narrow PU scraper blades and has buffer holes, which has good follow performance  for various belts. T ransport capacity  is an important indicator of measuring the capability of s crew conveyor . The transport capacity could be calculated through the following formulas: Q=47D²S.n.ψ Q—— transport capacity  (t/h) S—— pitch ， m D——diameter of screw blade (m) N—— speed of spindle  (γ/min) ψ—— activity coefficient The friction  and adhesiv

About the mining equipment, conveyor and reclaimer are in the common use. So I want to talk something about related machines in this blog. As we all know, the driving drum is the belt conveyor components which are used for transferring power. There is bare smooth steel cover in the surface of the driving drum, with herringbone and rhombic designs covering the surface. On the conditions of small power, small bandwidth and dry environment, bare smooth steel cover could be used. The rubber surface with herringbone figures has high friction coefficient, good skid resistance and drainage performance, but it has directivity. The rubber surface with rhombic designs is used in dual moving conveyor. The driving drum is the main conveyor components of transferring power. The modes of driving include single-drum, dual-drum and multi-drum modes. The single-drum is mainly used in the conveyors with low power, such as used in the coal surface transporting and in the coal preparation plant.

This blog mainly introduces Belt conveyor and   Pipe conveyor . Hope my readers could get some help from this blog. The mining equipment could be used on the conditions of mining product marking attached. There are various mining equipment. About underground mines, there are elevating conveyor, water pump, fan, air compressor, scraper and other devices. About open-pit mines, there are drilling machine, mine-car and other equipment. Besides, there are crusher, belt conveyor, loader, excavator, ball mill, magnetic separator, classifier and other equipment. Tractive effort the belt conveyor design needs is transferred through rubbing action between driving pulley of driving device and conveyor belt. So the friction drive forms. To ensure the transmitting of acting force and traction components' no slipping on the driving wheel, the following conditions must be met. (1) The traction components should have enough tension. (2) There should be certain roughness on the contact s