JULI Engineering

The screw conveyor is a kind of equipment which uses motor to drive the screw to rotate. The screw conveyor could transport the materials in horizontal, inclining, and vertical direction. It has many advantages such as simple structure, small cross sectional area, good sealing, easy operation, simple maintenance and etc. During the actual operating, there will be some problems. The reasons analysis of some problems are as follows: The conveyor screw axis would stop rotating. In generally, there are three reasons. The materials handled are too large. In this way, the materials could not get through the hanger bearing, which increases the resistance and results in the load running and machine halt. So the materials must be cleared.  The resistance of middle bearing has large resistance. The sealing is easy to be damaged. If the materials enter into the bearing, the halting and damaging of bearing will occur.  The bearing of reducer is damaged. The bearing temperatur...

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 c...

The screw conveyor is widely used in power plant, cement, mining, chemical and other industries for transporting the materials. Sometimes, the screw conveyor will be used in automated warehouse with stacker reclaimer, pipe conveyor, stone crusher and other equipment. The processing difficulty of helical blade is large, which greatly influences the performance and costs. There are three common manufacture methods of helical blade. The first one is to use special rolling brake, which is suitable for volume-production but has high requirements on equipment. The second one is cold-forming with low efficiency and bad quality of blade. The third one is hot rolling method with complex process and high labor intensity. As a professional conveying equipment manufacture, our company has obtained a new process(cold pressing method) after many years' exploring. This method is efficient and simple, which could produce the blades with high quality. The Principle of Pressing The sheet meta...

The screw conveyor is widely used by coal, building materials, chemical industry as a continuous conveyor department of food processing and machinery etc., suitable for horizontal or inclined conveying powder, granular and small bulk materials, such as coal, coal, cement, grain, EPC companies often with a belt conveyor, stacker reclaimer , apron feeder the use of with the use of heavy plate feeder, screw conveyor in life depends mainly on the spiral blade life. The spiral blade mainly stretch forming, rolling molding, die casting, extrusion molding, molding method for different section shape of spiral blade, large The majority of methods to obtain the same thickness of spiral blades, analysis and study of the working conditions of the spiral blade on the development of spiral blade forming methods, increase the wear resistance of the blade is essential. The spiral conveyor leaf without wear, against the cylinder wall, the sealing ring for drive shaft support, keep the center positio...

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...