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Belt conveyor design program Free Download for Free download belt conveyor design program Files at Software Informer. Belt Analyst is a handy tool for conveyor engineers. This program can help you create and Get Price. Designed by conveyor engineers for conveyor engineers. This is not just software, but a real engineering tool. Complete design evaluation of any bulk material handling belt conveyor. You can input any vertical and horizontal profile with up to 360 flights, 48 pulleys and 20 unique drive locations.
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Belt Conveyor Design Calculations Free Downloads - 2000 Shareware periodically updates software information and pricing of Belt Conveyor Design Calculations from the publisher, so some information may be slightly out-of-date. You should confirm all information before relying on it. Software piracy is theft, Using Belt Conveyor Design Calculations crack, password, registration codes, key generators, serial numbers is illegal.
Rulmeca Corporation assists conveyor designers and technicians with bulk handling conveyor belt pull and power calculations in four ways:
New Power Calculation Program
(free online cloud-based program, CEMA 7 version, part of RCS, Rulmeca Calculation System)
- Original Power Calculation Program (free downloadable Excel program, CEMA 4 version)
- Online Application Data Sheet(linked to our engineers)
- Application Data Sheet (downloadable pdf file you can send to us)
We use a modified version of the Conveyor Equipment Manufacturers Association guidelines. The primary equation for Effective Tension, Te, is as follows:
Te = LKt (Kx + KyWb + 0.015Wb) + Wm(LKy + H) + Tp + Tam + Tac
The Rulmeca Power Calculation Program will enable you to:
- Calculate Belt Conveyor Power Requirements
- Calculate Belt Tension Requirements
- Plot Material Trajectory,
- Plot Material Cross Section.
The program not only determines required power, but also displays all Motorized Pulleys available (for 60 Hz power supply), and plots dimensional information to scale.
This tutorial is for bulk handling conveyor belt engineers and technicians challenged with designing a new conveyor system and conveyor operators confronted with belt tension related problems, such as belt slip, belt sag, or excessive radial load. It explains basic principles involved in calculating belt tensions; introduces key terms, such as effective tension, slack side tension, and total tension; and serves as an introduction to our advanced tutorial on how to switch a single drive conveyor system to a dual drive conveyor system, to solve tension-related problems.
Common components on a typical bulk handling belt conveyor include head pulley, snub pulley, flat belt, tail pulley, carrying idlers, return idlers, belt plow, counterweighted take-up, belt cleaner, loading skirts, hopper feeder, and slider bed.
The 5th, 6th, and 7th editions of the Conveyor Equipment Manufacturers’ Association Belt Conveyor Design Manual includes several methods to calculate the belt tension required to move bulk materials on a conveyor belt. They are beyond the scope of this short video. These methods include “historical”, “basic”, and “universal” methods. We use historical nomenclature in this video and restrict the presentation to conveyors with standard loading conditions and continuous material flow.
The CEMA Conveyor Design Manual provides this equation to calculate effective belt tension.
Te = LKt (Kx + KyWb + 0.015Wb) + Wm(LKy + H) + Tp + Tam + Tac
These parameters enable the designer to calculate belt tension required to overcome:
- friction
- gravity
- momentum
Belt Conveyor Design software, free download. software
Some of the friction components are: Tbc, the tension required to overcome belt cleaner drag (The subject of another Rulmeca video); Tsb, the tension required overcome skirt board drag (The subject of another Rulmeca video); and Tyr, the tension required to overcome friction in the bearings of the return rollers as the empty belt travels over the return strand.
The gravity components include: Tb, the tension required to lift or lower the conveyor belt, and Tm, the tension required to lift or lower material.
The momentum component, Tam, is the tension required to accelerate the material on the belt from the initial velocity, as it hits the conveyor, to the terminal velocity, which is defined as the conveyor belt speed.
Required power equals effective tension times belt speed:
- Required Power = Te X V
In imperial units, Te is expressed in pounds (lbs), and V is expressed in feet per minute (fpm). The product of the two factors is expressed in foot-pounds per minute (ft-lbs/min). Since one horsepower (HP) = 33,000 ft-lbs/min, required conveyor drive power may be expressed in HP as follows,
- (Te in lbs) x (V in fpm)/((33,000 ft-lbs/min)/HP) = HP
Conveyor System Design Software
After calculating Te, it is important to calculate T2slip (slack side tension required to resist slippage of the belt on the pulley.) The historical method that CEMA provides to calculate T2slip is as follows:
- T2slip = Te x Cw, where Cw is the CEMA wrap factor for a rubber surfaced belt.
The wrap factor can be as small as 0.08 for dual drive systems with rubber-lagged drive pulleys, an automatic take-up, and 420° of wrap angle, or as large as 1.2 for a single drive system, an unlagged pulley, manual take-up and 180° of belt wrap.
Next it is important to calculate T2sag (slack side tension required to prevent belt sag.) Sag is a phenomenon which can occur at the point of minimum tension in the carrying strand of a conveyor belt. On an inclined conveyor, it is usually in the vicinity of the loading zone. The CEMA historical method allows the designer to select an appropriate percentage of sag between the carrying idlers, to prevent lumps or material from coming out of the conveyor belt. The three values CEMA provides are 3%, 2%, and 1.5% sag Those percentages are based on material lump size, the proportion of lumps vs. fines, and the idler troughing angle. Note that T0, the minimum tension to prevent sag, may be reduced if the belt is less than fully loaded.
The three pertinent equations are:
- T0 = 4.20 Si (Wb + Wm) for 3% sag
- T0 = 6.25 Si (Wb + Wm) for 2% sag
- T0 = 8.40 Si (Wb + Wm) for 1.5% sag
In these equations, Si is idler spacing in feet, Wb is a weight per foot of the belt, and Wm is a weight per foot of the material. After calculating T0 it is essential to add or subtract the weight of the carrying and return strands of the belt for a sloped conveyor and add or subtract Tyr, which is the tension required for the empty belt to overcome idler friction.
After calculating T2slip and T2sag , it is essential select the larger of the two values. It is reasonable to assume that the value of T2 is uniformly distributed throughout the belt. If, for example, T2 = 1,000 lbs, in the case of a counterweighted take up, the weight of the counterweight must be 2,000 lbs. That is because the 2,000 lbs provided by gravity will be resisted with an equal and opposite force of 1,000 lbs in each of the two strands of conveyor belt.
Once T2 has been determined, maximum belt tension may be calculated using this equation:
- T1 = Te + T2
This value is required to select a belt. As shown in this video, T1 will occur in the immediate vicinity of the drive pulley in the case of an inclined conveyor with a conveyor drive in the head pulley position.
Pertinent parameters from the Rulmeca Corporation conveyor drive power calculation program are as follows:
| Te = effective belt tension at drive. |
| ang = angle of belt wrap around drive pulley(s). |
| Cw = “wrap factor”, to determine slack side tension to prevent belt slippage on drive pulley. |
| T2 = estimated slack-side tension required to either keep belt from slipping on pulley surface or maintain trough at allowable sag percentage, whichever is greater. |
| T1 = Te + T2 |
| T1 + T2 = Sum of belt forces on drive pulley. NOTE: This is not a vector sum. |
| T_L = type of lagging specified for drive pulley(s). |
| Tatype = type of take-up specified to apply “slack-side tension”. |
| Beltype = type of belt carsass specified. |
| w = belt width |
| str = tensile strength of specified belt. |
| pstr = percentage of available belt tensile strength used. |
| btr = thickness range of specified belt |
| Ai = belt tension required to overcome frictional resistance and rotate idlers. |
| Cs = skirtboard friction factor. |
| H = vertical distance that material is lifted or lowered. |
| Kt = ambient temperature correction factor. |
| Kx = factor to calculate frictional resistance of the idlers and the sliding resistance between belt and idler rolls. |
| Ky = factor to calculate resistance of belt and resistance of load to flexure as they move over idlers. |
| L = length of conveyor. |
| Q = tons per hour conveyed. |
| Si = troughing idler spacing. |
| Tac = total of the tensions from conveyor accessories. |
| Tam = tension required to accelerate the material continuously as it is fed onto belt. |
| Tb = tension required to lift or lower the belt. |
| Tbc = tension required to overcome belt cleaner drag. |
| Te = effective belt tension at drive. |
| Tm = tension required to lift or lower conveyed material. |
| Tp = tension required to overcome resistance of belt to flexure around pulleys and resistance of pulleys to rotate on their bearings. |
| Tpl = tension required to overcome belt plow drag. |
| Tsb = tension required to overcome skirtboard drag. |
| Ttr = tension required to overcome special loading condition(s.) |
| Tx = tension required to overcome carrying and return idler friction. |
| Tyb = total of tensions due to resistance of belt to flexure as it rides over carrying and return idlers. |
| Tyc = tension due to resistance of belt to flexure as it rides over carrying idlers. |
| Tym = tension due to resistance of material to flexure as it rides over carrying idlers. |
| Tyr = tension due to resistance of belt to flexure as it rides over return idlers. |
| V = design belt speed. |
| Wb = weight of belt per unit of length of conveyor. |
| Wm = weight of material per unit of length of conveyor. |
| Sag = recommended maximum sag percentage to avoid spillage in troughed section of belt. |
| Ls = Length of conveyor from tail pulley to Drive snub (for return run drive only) |
| Hd = Height of conveyor from top of tail pulley to bottom of drive pulley (for return run drive only) |