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Belt conveyor

Article source: Release time:2017-11-08 22:19 Browse times:

A. The main types

 

1. Turning belt conveyor

2. Climbing belt conveyor

3. The way of belt conveyor

4. Special belt conveyor belt conveyor (45 degrees, fan type belt conveyor, etc.)

5. Light belt conveyor

6. Narrow type belt conveyor

7. The telescopic belt conveyor

8. Loading and unloading of belt conveyor

9. The steel belt conveyor

Characteristics of two.

 

Is the most ideal and efficient coal mine belt conveyor continuous transportation equipment, compared with other transportation equipment (such as locomotive class), the characteristics of long transmission distance, large capacity, and the advantages of continuous transmission, and reliable operation, easy to realize automation and centralized control, especially for high yield and efficient mine, coal mining belt conveyor has become mechanical and electrical integration of technology and equipment of the key equipment. Main characteristics of belt conveyor is the fuselage can easily scale, with storage bin, the tail with coal mining working face advancing elongation or shortening, compact structure, and can not set the foundation, directly in the laid of floor of roadway, with light frame, tear open outfit is very convenient. When the transmission capacity and distance is larger, can deserve to drive to meet the requirements in the middle. According to the requirement of the conveying process, can be single delivery, can also be combined unit is horizontal or inclined transportation system to transport materials.

Belt conveyor is widely used in metallurgy, coal, transport, water and electricity, chemical industry and other departments, because it has large transportation amount, simple structure, easy maintenance, low cost, high universality, etc.

Belt conveyor is used in building materials, electric power, light industry, food, port, shipping and other departments.

3. Technology advantage

 

The first is its reliable operation. In many need continuous operation of the important production units, such as power plant coal transport, steel and cement material conveying, and the port within the ship loading and unloading, etc. All use belt conveyor. Such as downtime on these occasions, the loss is huge. When necessary, the belt conveyor can one by one, work continuously.

Belt conveyor power consumption is low. Due to material and conveyor belt almost no relative movement, not only make the running small resistance (about 1/3 of the scraper conveyor - 1/5), and wear and breakage to the cargo are small, productivity high. These are conducive to reduce the production cost.

The conveying belt conveyor line adaptable and flexible. Short line length according to need. A few meters, up to more than 10 km. Can be installed in a small tunnel, can also be set up in the sky of the ground traffic chaos and dangerous areas.

According to the requirements of process flow, the function of belt conveyor is very flexible in the material from one or more points. Can also turn to more or a few segments discharge. When feeding on a few points to the conveyor belt at the same time (such as coal preparation plant of coal under the conveyor) or a little along the length direction of the belt conveyor by uniform feeding equipment to transport brings, belt conveyor has become a major transport corridors.

Belt conveyor in coal yard under the pile of the lane take material, when need, still can put the pile of different materials. Material can be simply, discharged from conveyor head can also move through the plough tripper or discharging car in the direction of the conveyor belt length of discharge.

4. The design key points

 

1, working conditions, status and conditions

Need to consider working time every day, working frequency, the service life of belt conveyor, feeding and discharging method.

Work environment and condition: the environment temperature, outdoor or indoor, environmental requirements, mobile or fixed, telescopic requirements.

2, transmission line and conveyor belt

Need to consider the size of the transmission line in detail, including: dip Angle, maximum length, hoisting height; The size of the straight line and curve segment; Connection size, etc.

Conveyor belt: the biggest sag requirements, to simulate the friction resistance coefficient and friction coefficient, the safety coefficient.

3, material properties and throughput

Need to consider the specific nature of material, including: loose density, rest Angle, the granularity of the material, the large degree, material moisture, wear resistance, adhesion and friction coefficient of the material. Throughput, uniform material flow can directly reach throughput, when the flow nonuniformity can consider to give material flow of the basic statistics. [1]

Of 5.

 

A. review

 

By the general belt conveyor belt, roller, roller and the drive, brake, tensioning device, loading, unloading, sweeper device composition and so on.

B. the conveyor belt

 

The commonly used, which has two kinds of rubber belt and plastic zone. Rubber belt is suitable for the working environment temperature between 15 ~ 40 ℃. Material temperature is not more than 50 ℃, need to inform factory, more than 50 ℃ above orders can use high temperature resistant conveyor belt. Upward transportation 12 ° ~ 24 ° inclination of grain material. For large obliquity conveyor available skirt sideband. Plastic tape has the advantages of resistance to oil, acid, alkali, but for climate adaptability, easy to slip and aging. Bandwidth is the major technical parameters of belt conveyor.

C. roller

 

Have grooved roller, flat roller, self-aligning roller, buffer roller. Grooved roller bearing branch (consists of three roller bearing, used to transport grain materials; Self-aligning roller to adjust the belt transverse position, avoid running deviation; Buffer roller in the material, to reduce the material impact to the belt.

D. drum

 

Driving drum and redirection roller. The driving drum is a major part of the transmission power. Single drum (tape for roll Angle is 210 ° ~ 230 °), double drum (Angle of 350 °) and more drum (for high power), etc.

E. tensioner

 

Its role is to make the conveyor belt to achieve the necessary tension, in order to avoid skidding on driving drum, and the deflection of conveyer belt between the roller guarantee within the prescribed scope. Contains screw tensioning device, the heavy hammer tensioning device, the car type tension device. [2]

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