Sand the next five years with the development trend of the belt conveyor (Ⅲ)

Thus, the former needs to be perfect, the latter shall develop. But for self-moving tail requirement is common, both to meet the normal working hours skid conveyor requirements,

but also to meet the conveyor Food conveyor downtime to achieve rapid self-shift. ⑺ efficient storage belt and tensioner seal of use

Closed storage winch red tight band structure and the main tension easily derailed car, conveyor Yi deviation, telescopic conveyor belt when the car is not self-moving roller,

the need to manually hot water heat exchanger goes overhaul trouble. Adopt foreign advanced structure with open storage devices and high-precision, high-torque, large stroke automatic tensioning design

Equipment, roller conveyor with telescopic trolley can automatically place. Conveyor belt Yi deviation, the phenomenon does not appear derailment. ⑻ conveyor varieties models

fewer species, rubber belt conveyor single function, the use of limited scope and can not give full play to its performance, such as the expansion of transport people, or two-way haul transport and

other functions, so

A multi-purpose machine; addition, China coal mine geological conditions vary widely, the layout of the transport system often some special requirements, such as bending, large

angle (> +25 °) until the vertical lifting, etc., should develop a special type of dedicated machines kind of belt conveyors. 3.3 reliability, life on

The gap between the tensile strength of China's production of conveyor ⑴ whole flame retardant fabric conveyor belt up to 2500 N / mm, foreign to 3150 N / mm. Flame retardant

conveyor belt rope up to 4000 N / mm, foreign to 7000 N / mm. ⑵ joint strength conveyor belt joint strength for the mother country

With 50% to 65%, up to mastering foreign 70% to 75%. ⑶ idler roller life of our existing technology and foreign comparative, short life, low speed, resistance, while the United

States such as the use of new oiling roller, its running resistance, bearings lubricated with thin oil, greatly improve the care roll

Life, and can be used as a high-speed roller conveyor, the use of a wide range of significant economic benefits. Our conveyor idler life 20000 h, life abroad roller 5 to 90,000

h, domestic roller life expectancy was only 30% of foreign products to 40%. ⑷ conveyor reducer life I

State conveyor reducer life 20000 h, foreign reducer life 70,000 h. ⑸ conveyor running up and down on the control system reliability is poor gap ⑴ 3.4 drive speed of the fluid

coupling and hard gear reducer drive abroad diverse ways, such as the BOSS system, CST can

Control and drives, and control accuracy.
Monitoring devices have been using high-grade foreign conveyor programmable controller PLC, developed advanced primary and comprehensive program of soft power relay control

technology and data admissible, processing, storage, transmission, fault diagnosis and automatic monitoring system such as a complete query. Only our mining conveyor

With a mid-range programmable controller to control the conveyor starts, normal operation, shutdown and other works. Although with controllable Kai (system) support device used

in conjunction to achieve controllable Kai (system) moving with speed synchronization, power balance and other functions, but it does not automatically close device without it

Fault diagnosis and inquiries. ⑶ abroad conveyor belt in addition to installing protective devices to prevent belt running, slipping, tearing, too full blockage, automatic

sprinkler dust and other protective devices, in recent years has developed a lot of new monitoring devices: drive pulley, change the drum and the temperature of roller group

Degree of monitoring systems; smoke alarm and automatic fire extinguishing equipment; fiber woven belt longitudinal tear and joint monitoring system; proof electronic belt scale

automatic metering system. These new protection system of China's basic in the blank. And our existing skid pile of coal, Coal Chute Mancang protection

, Anti-deviation, over-temperature sprinklers, smoke alarm device reliability, sensitivity, life expectancy is relatively low.
Coal belt conveyor technology trends 4.1 large-scale equipment, improve transport capacity in order to meet the needs of high yield and efficiency of intensive production, belt

conveyor to increase transmission capacity. Long distance, high belt speed, large capacity, high power is the inevitable trend of future development, but also

High-yield and efficient mine transportation technology development direction. 10a in the future within the throughput will be increased to 3000 ~ 4000 t / h, but also speed

increased to 4 ~ 6m / s, the length of the telescopic conveyor belt to reach 3000m. Powerful for steel cord conveyor in order to be extended to 5000m

, The stand-alone drive power required to reach 1000 ~ 1500 kW, belt tensile strength of 6000 N / mm (rope core) and 2500 N / mm (steel cord). Especially coal mine conveyor

trough scalable technology development, along with the emergence of high-yield and coal face of technology is not

Breaking development, the original telescopic belt conveyor, whether it is the main parameter, or operating performance are difficult to adapt to the requirements of high-

yielding and efficient face, the main parameters of the mine site needed a larger, more advanced technology, more reliable performance over long distances, large capacity,

high-power trough retractable belt transmission

Sending machine, in order to improve the level of conveyor technology is designed to fill the gaps, proximity and industrial countries to catch up with international advanced

level of technology. It contains seven key technology areas: ⑴ belt dynamic analysis and monitoring techniques; ⑵ soft start and power balancing technology; ⑶ in

Between the drive technology; ⑷ automatic tensioning technology; ⑸ new high-speed roller life technology; ⑹ quick self-moving tail technology; ⑺ efficient storage tape

technology. Component parts to improve performance and reliability of equipment operation rate depends primarily on the high and low performance and reliability of component

parts.
In addition to further improve and enhance existing metadata component performance and reliability, but also continue to research and development of new technologies and

component parts, such as high performance controlled soft start technology, dynamic analysis and monitoring technology, and efficient storage tape devices, rapid self- Move the

tail, high roller, so that the belt

The performance of the conveyor is further improved. 4.3 expand functionality of a machine of expanding transport people, or two-way haul transport and other functions, so a

machine, so as to maximize economic benefits. Development of special type, such as curved belt conveyors, inclined or vertical lift and so on.