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DC type Long distance curve belt conveyor

key word:Heat exchange element

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Product description

DC long distance curve belt conveyor

 

1. Introduction

1.1. Purpose

DC type long-distance curve belt conveyor is used when the starting point and the end point of the conveyor line cannot be connected in a straight line. The curved running line is used to bypass obstacles or unfavorable sections, so as to realize less or no intermediate transfer station, so as to reduce the number of equipment. It is widely used in power plants, ports, metallurgy, cement, mines and other industries with its outstanding performance of economy, environmental protection, energy saving and strong adaptability to complex terrain.

1.2. Model meaning

           DC. **/ ##

           DC ------ long distance curve belt conveyor

           **----------Conveying capacity (/ b)

           ##-----------------Captain (m)

1.3. Structural characteristics

1.3.1. The common driving modes of DC long-distance curve belt conveyor are as follows:

1.3.1.1. variable frequency motor (+ frequency converter) + reducer → variable frequency speed regulation drive. The frequency conversion drive can improve the starting performance of the conveyor, control the conveyor to start and brake according to the set curve, and meet the dynamic stability and reliability requirements of the whole machine.

1.3.1.2. Liquid viscous governor drive. Liquid viscosity speed regulating drive is also commonly used in the transmission device of long-distance curve belt conveyor. It can control the starting acceleration of curve belt conveyor, so that the drive device can provide adjustable, smooth and impact free starting torque.

1.3.1.3. Hydraulic motor drive. The hydraulic motor drive system can ensure that the motor starts up to the rated speed without load. It can not only control the running speed of the belt conveyor by adjusting the hydraulic pump, but also ensure the power balance of the multi machine drive of the long-distance curve belt conveyor.

1.3.1.4. Controlled start stop soft start CST drive. CST driving device can adjust and control the start and stop acceleration of long-distance curve belt conveyor in a large range.

1.3.2. The roller, idler and other parts of DC long-distance curve belt conveyor are basically the same as those of ordinary belt conveyor.

1.3.3. The conveyor belt turnover device shall be arranged at the head and tail of the conveyor to avoid soiling the idler and scattering materials along the belt conveyor line, reduce the wear of the conveyor belt and idler, and extend the service life of the conveyor belt.

1.4. Working principle

DC type long-distance curve belt conveyor is a kind of common belt conveyor, which uses the belt as the traction and bearing component, carries the material through the movement of the belt carrying the material, raises the inner curve of the belt and installs the idler with a certain angle of inclination, so that the conveyor produces an outward centrifugal thrust to overcome the belt tension caused by the turning Centripetal force to ensure the turning operation of the conveyor belt is a new type of continuous conveying equipment which uses common belt conveyor components to realize plane turning. The running line can bypass obstacles or unfavorable sections to realize the natural direction change of the conveyor belt operation. Long distance curve belt conveyor can realize multiple continuous horizontal turns and three-dimensional turns.

See figure 28-1 for the stress diagram at the turning of DC long-distance curve belt conveyor. When the belt runs to the curve, the resultant force FC of the belt tension points to the inside along the normal direction of the curve, which makes the belt produce the trend of inward deviation. As the curve elevation angle is set in the bending section, the centrifugal force FR, the centrifugal friction force FR between the conveyor belt and the idler, and the centrifugal inertia force FQ, which are generated by the inclination angle of the material and conveyor belt, are directed to the outside side, so that the conveyor belt generates an outward thrust, which balances with the FC and realizes the automatic alignment of the conveyor belt. Therefore, when the conveyor belt turns, it should meet FC + FG + FR + FQ = 0

 

 

2. Main technical parameters

See table 28-1 for the recommended minimum horizontal turning radius of DC long-distance curve belt conveyor

See table 28-2 for the conveying capacity of DC long distance curve belt conveyor

Table 28-1 recommended values of horizontal turning minimum radius of DC long distance curve belt conveyor

Belt Widthmm
Turning Radiusm   
Slot angle(°)
800
1000 1200 1400 1600 1800 2000 2200 2400
35 120 1500 1800 2100 2400 2700 3000 3300 3600
45 800 1000 1200 1400 1600 1800 2000 2200 2400
60 640 800 960 1120 1280 1440 1600 1760 1920

Table 28-2 conveying capacity of DC long distance curve belt conveyor

Belt Widthmm
Turning Radiusm   
Slot angle(°)
800
1000 1200 1400 1600 1800 2000 2200 2400
0.6 397 649 951 1321 1748 2236 2776 2475 4209
2 496 811 1188 1652 2186 2795 3470 4344 5262
2.5 620 1014 1486 2065 2733 3494 4338 5430 6578
3.15 781 1278 1872 2602 3444 4403 5466 6843 8289
3.6 982 1459 2139 2973 3935 5031 6246 7821 9473
4 1622 2377 3304 4373 5591 6941 8690 1052
4.5 1824 2674 3718 4920 6291 7808 9776 1184
4.8 2852 3964 5247 6709 8328 1042 1263
5 2971 4130 5466 6989 8676 1086 1315
5.6 6122 7829 9717 1216 1473
6.5 9083 1127 1412 1710

 

 

3. Equipment shape and structure

See figure 28-2 for the layout of DC long-distance curve belt conveyor and figure 28-3 for the layout of idler at the turning of DC long-distance curve belt conveyor

 

4. Selection method

DC type long-distance curve belt conveyor can be designed in a variety of layout ways. According to the particle size, capacity, conveying capacity, conveying distance, conveying angle, etc., determine the basic parameters of the belt width, belt speed, power, curvature radius of the curve section of the conveyor, and design the layout and construction drawing of the long-distance curve belt conveyor according to the process line.

 

5. Scope of supply and ordering requirements

5.1 scope of supply

The scope of supply of DC type long-distance curve belt conveyor ensures the long-term, safe and normal operation of the equipment, as well as the necessary parts to reach the above technical parameters, including but not limited to the following contents: roller, idler, drive device, tension device, belt turnover device, guide chute, funnel, shield, guardrail, fence and various supports at the elevated position and the place without rain cover , leg, support, base, hanger, truss, maintenance platform or walking platform, crossing ladder, cleaning device, protection device, tape, electrical, control system, etc.

5.2 ordering instructions

5.2.1. Layout location and relevant interface dimensions of long-distance curve belt conveyor equipment.

5.2.2. Relevant parameters and design basis of conveying materials, including the nature, loose density, conveying capacity, etc.

5.2.3. Working environment, meteorological conditions and working system, such as ambient temperature, humidity, wind speed, working environment, daily working time, etc.