Prevent large angle conveyor belt deviation method

     Inclined belt conveyor belt used by the baseband traditional wavy , ribs and divisions. Baseband appearance with ordinary conveyor belt, sidewall is wavy . In the

production practice , the traditional large angle belt conveyor has a fatal weakness: belt ribs long and turn the platen , edger serious friction between the baseband ,

resulting in a shorter working hours after gravity conveyor the belt ribs wear rupture occurred and baseband tearing , greatly reducing the corrugated sidewall belt life . In the past the main

measures to prevent the belt deviation is controlled by the vertical roller belt position baseband guarantee to achieve, so turning roller and the belt at least one side wall

contact industrial belt conveyor friction , causing the belt gradually wears rupture.
 In order to prevent large angle belt conveyor belt deviation shall organize its structure in accordance with the following methods :
    1, in the corrugated wall of the belt 2 by the air side of the overall increase of vulcanized belt guide , in turn, processed on the platen a respective guide groove , the

guide groove of the guide belt is fitted to ensure that the belt ribs are not turn in direct contact with the platen .
    2, in the middle of the fuselage with a plurality of small pinch roller guide groove belt deviation limit , abolished the vertical roll , avoiding the sides of the vertical

roll with baseband baseband side squeeze caused tearing, to ensure the integrity of the baseband to improve the life of the belt and the machine .

Belt conveyor applications and features

    Belt conveyor is a continuous conveying equipment in the most efficient, most commonly used as a model . As a simple structure, less noise during operation , widely used in

mining , metallurgy, hydropower construction sites , ports and industrial enterprises within the assembly line . In China loading and unloading of bulk cargo ports collection ,

the belt has become Crushing equipment a necessary device in the handling and transportation of coal , bulk grain , ore and other professional pier used a lot of long distance, high production

efficiency, fixed belt conveyor , as well as belt conveyor machine as the main ship loaders , unloaders , reclaimers and stacker machines.
    Comparison with the intermittent operation of the crane , belt conveyor has the following advantages :
    1 ) belt conveyor roller chain conveyor can be kept in the same direction for the transport of materials , loading and unloading without stopping , can be transported at high speed , with high

productivity. And this high productivity is far from intermittent crane can be compared. For this reason , the weight and cost of the device are the same, much less than the

productivity of the crane belt machine productivity .
    2 ) As the feed belt uniform , while its speed and relatively stable , and therefore , in the course of which the power consumption is not changed ; the intermittent

operation of the crane of the wide variations in power consumption . Therefore, the calculation of power and belt conveyor drives in terms of weight and cost less than most of

the intermittent work cranes.
    3 ) For the same reason, the maximum load of the conveyor belt and the difference between average loading cranes generally small and the load difference is very significant.

Screw contrast abroad

    The main properties of the screw conveyor and parameters have not meet the demand for high-yield and efficient mine , especially trough screw conveyor scalable key

components and their functions , such as self-moving tail, efficient storage and belt and tensioning devices abroad has a big gap. Main differences are the following:
    ( 1 ) Installed power : vertical conveyor My working face retractable screw machine maximum installed power of 4X250KW, foreign products up 4X970KW, screw machine -made foreign products

installed power of approximately 30% -40% .
    ( 2 ) transport capacity : the maximum volume of screw conveyor is 3000 t / h, abroad reached 5500 t / h.
    ( 3 ) Maximum Belt Width : My screw machine is 1400mm, the largest foreign to 1830mm.
    ( 4 ) with speed : As trustee roller speed limit , our spiral conveyor belt speed of 4 meters 90 degree turn conveyor per second, is 5 meters or more foreign
    ( 5 ) working face Transport Length : our country is 3000m, foreign to 7300m.
    ( 6 ) self-moving tail: As the face of the emerging high-yield , scalable requested trough screw conveyor tail With the rapid advance of face and fast self-moving . Domestic

self-moving tail mainly rely on imports .
    ( 7 ) Efficient storage belt and tensioning device : the band structure of a closed reservoir mainly tensioning easily derailed car , conveyor Yi deviation, telescopic

conveyor belt when the car is not self-moving roller , need manual goes on, overhaul trouble. Adopt foreign advanced structure with open storage devices and high-precision ,

high-torque , large stroke automatic tensioning device , roller conveyor with telescopic trolley can automatically place. Conveyor belt Yi deviation, the phenomenon does not

appear derailment .
    ( 8 ) Conveyor varieties: varieties of small models , single function , the use of limited scope and can not give full play to its performance, in addition , China's coal

mine geological conditions vary widely, the layout of the transport system often some special requirements, such as bending , large angle until the vertical lifting , etc.,

should be developed machines of special type of screw conveyor .

Slow screw conveyor application characteristics

    When the conveyor speed is low , the spiral surface material by the gravitational influence of far greater impact by centrifugal force , thus turning the material

continuously along the spiral Flexible Roller Conveyor facing down , so will produce an axial displacement of the screw conveyor .
    The filling coefficient of screw machine is generally less than 0.5 . Because excessive filling , the material is not slid along the spiral surface , but it was stirred over

the helical screw shaft set , powered roller conveyor and can not get the maximum axial velocity . Since slow screw conveyor material influenced by gravity , obviously it can not be used for vertical

screw conveyor or a larger tilt angle upward transport situation .
     Slow conveyor transport capacity, but in the transportation of the material during rolling is always in a state free of loose , less subject to extrusion, suitable caking ,

large abrasive materials. When using standard screws, not only to maintain a rapid slide down the speed, and on the inclined conveyor has a certain ability to adapt ( generally

less than 20 °inclination )

LS series screw conveyor main structural features

    Screw conveyor equipment in China has a history of decades of application , in this long process , the spiral machine equipment constant technical innovation, improve and

perfect , now screw Extendable conveyor machine equipment can be completed in horizontal, inclined , vertical, mobile conveyor , also developed a shaft helical screw shaft and twin-screw , under

which there are a variety of different specifications, in order to have the most extensive helical axis , drag chain conveyor the main representative of the level of screw conveyor LS series , the

series of spiral machine is mainly used for mining , metallurgy, building materials, construction, chemical , laboratories and other occasions , the main structural advantages :
    ( 1 ) using high quality imported high-strength wear-resistant steel making continuous helical blade , made ​​after forming the blade pitch error less than 5mm and smooth

surface to ensure uniform material handling , stability, thus ensuring the material measurement repeatability.
    ( 2 ) continuous spiral blade when making use of cold work hardening of the surface treatment, hardness and wear resistance than ordinary double blades around the outer edge

of hardness up to HB240.
    ( 3 ) before and after the festival spiral blade is sparse , dense two kinds of pitch , effectively prevent plugging . Commonly known as " eat less , spit fast ." Blades

ensures high precision material handling system to do when the tube is full , users from the screw conveyor inlet suction flat canvas sleeve case will be able to judge the

merits of the screw conveyor .
    ( 4 ) screw machine axis are set within a certain distance with intermediate support hanging bearing an inner shaft rotation, hanging in the middle bearing cast steel or

cast aluminum multi-use , single cantilevered bearing body joint of the front section of the blade interrupt spacing is smaller, material overcurrent section maximized and that

material flow smoothly without hindrance .
    ( 5 ) Screw the inlet port to connect with cement silo is divided into : ball joint flange rigidly connected and hanging tarpaulins soft connection plus two forms . Visual

equipment disassembly frequently decide interface forms.
    ( 6 ) before mounting body specially designed to enable normal operation helical axis force is pulling its tension by former bearings, thrust bearings commitment to prevent

the lifting gear and shaft seat pressure, under pressure to avoid the bolt shaft phenomenon generated sweep chamber .

Tube and trough screw conveyor difference

     Previous article described a shaft and shaftless screw conveyor distinction generally made ​​in the form of spiral slot machines and tube are two types , today on the tube

and trough screw conveyor plastic chain conveyor differences are described below:
    Tubular screw conveyor can also be called screw feeder , tubular screw conveyor inlet is added at the feed end of a feed, or feed hopper, while the trough screw conveyor is

part of the spiral tube body Restructuring the groove, the use of two kinds of screw conveyor is the difference between : a tubular screw conveyor machine

Smaller amount , and heavy duty conveyor the transmission distance is shorter than the trough screw conveyor , feeding amount is also somewhat different , tubular screw conveyor feeding amount less

than the trough screw conveyor . But the former also has a unique advantage: you can easily move , which can be welded to the tubular body casters, convenient and mobile ,

flexible and convenient

. And can communicate with each other vibrating screen supporting the use of screening equipment , to reduce production costs , improve production efficiency effect. Fully

enclosed screw conveyor screw conveyor and easy to clean surface , can ensure environmental sanitation and the delivery of materials from contamination, does not leak, torque,

energy

Consumption is low , due shaftless spiral , material clogging , the discharge opening is not blocked, which can lower speeds , smooth transmission, reduce energy consumption and

transmission capacity . Throughput is the same as a conventional shaft screw diameter 1.5 times . Long distance transport . Single conveyor lengths up to 60 m .

According to user needs , the use of multi-level series -mounted , ultra- long-distance transportation of materials . Can flex .

Mine belt conveyors in the production line application

    Belt conveyor is a continuous conveying equipment, has applications in many occasions , such as supermarkets , workshops , etc. These occasions can be said of the belt

conveyor is a relatively small bucket elevators belt conveyor. In coal mines, sand and gravel quarry , metallurgy, chemical industry, construction , building materials and other fields

Together have applied a standard mine belt conveyor , belt conveyor of this type in the production process assume a major role , belongs to a large transportation equipment,

typically used to silo or shaker 90 degree conveyor next affected device transportation of materials, can be up to a few kilometers away , should primarily

With a series of belt conveyor stationary belt conveyor TD75 , DT and large angle belt conveyor belt conveyor .
    TD75 belt conveyor widely used in the coal industry as a belt conveyor is used for conveying bulk , powder, granular or finished material handling equipment over long

distances . Widely applied in metallurgy, mining, coal , power plants, chemical plants, building materials, ports and other industries. Based on the input

Send different processes can stand-alone, multi-level multi-machine Relay transport .
    DT is the original type fixed belt conveyor TD75 type machine , DX two series of belt conveyors unified , replacement new product can be widely used in metallurgy, mining,

coal, ports, power plants , building materials , chemical industry , light industry, petroleum and other industries.
    DJ inclined belt conveyor is a kind of material can be inclined conveyor conveying equipment , conveyor angle ranging from 0 ° ~ 90 ° range. With corrugated sidewall

conveyor belt using the belt and transverse bulkhead in underground mining engineering , open pit mining , large-scale self-unloading peers and have adopted

The belt conveyor equipment can be used for coal, chemical, metallurgy, electric power, light industry, construction , ports and other industries ,