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Method for measuring conveying capacity of belt conveyor

The technology of a belt conveyor and a measuring method is applied in the direction of measuring device, weighing, weighing equipment for continuous material flow, etc. The effect of capital cost

Pending Publication Date: 2021-11-26
周铁垒
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these measurement methods have the following problems and disadvantages: they all need to install special equipment around the belt conveyor body, such as belt scales, cameras, lasers, etc., which require a lot of capital costs. Occupies maintenance space around the belt conveyor

Method used

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  • Method for measuring conveying capacity of belt conveyor
  • Method for measuring conveying capacity of belt conveyor
  • Method for measuring conveying capacity of belt conveyor

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] Such as figure 1 The belt conveyor of the conveying method in (c). The conveying speed v of the belt conveyor is 2.5m / s; the vertical lifting height h is 18m; the no-load time t is 0.5 hours, and the no-load power consumption E 1 is 26.699kWh; load time t 1 for 1 hour, load power consumption E 2 is 117.831kWh; the amount of material conveyed within 1 hour is m; the acceleration of gravity g is 9.8m / s 2 ;1kWh=1×1000×3600J; When the material enters the belt conveyor, the speed parallel to the conveying direction is 0, how many tons is the conveying capacity of the belt conveyor within 1 hour of load.

[0020] Substitute the above data into the formula m=(E 2 –E 1 t 1 / t) / (gh+0.5v 2 –0.5v 1 2 )have to:

[0021] Substitute the parameters to get:

[0022] m=(117.831-26.699*1 / 0.5)*1000*3600 / (9.8*18+0.5*2.5^2-0.5*0^2)

[0023] m=1292069.628kg=1292.069t

[0024] After calculation, the material transport volume of this belt conveyor within 1 hour is 1292.069t.

example 2

[0026] Such as figure 1 The belt conveyor of the conveying method in (a). The conveying speed v of the belt conveyor is 2m / s; the vertical lifting height h is 9m; the power factor of the belt conveyor motor 0.9, the voltage is 380V; no-load current I 空载 is 45.164A; load current I 负载 is 67.205A; the acceleration of gravity g is 9.8m / s 2 ; 1 hour is 3600 seconds; when the conveying material enters the belt conveyor, the speed parallel to the conveying direction is 0, how much material is conveyed in 2 hours.

[0027] Since the delivery volume is calculated for 2 hours, the empty time t is 2 hours, and the load time t 1 for 2 hours.

[0028] 2 hours no-load power consumption E 1 for:

[0029]

[0030] 2 hours load power consumption E 2 for:

[0031]

[0032] Substitute the above parameters into m=(E 2 –E 1 t 1 / t) / (gh+0.5v 2 –0.5v 1 2 ),inferred:

[0033] m=(286621045.344-192618895.795*2 / 2) / (9.8*9+0.5*2^2-0.5*0^2)

[0034] m=1042152.434kg=1042.152t

[003...

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Abstract

The invention relates to a method for measuring the conveying capacity of a belt conveyor. According to the principle of energy conservation, a difference between the load power consumption and the no-load power consumption of the belt conveyor within a certain period of time is equal to the increasing value of the kinetic energy and the potential energy of the conveying quantity of a material. The specific measurement method comprises the following steps: measuring the no-load power consumption E1 of the belt conveyor within a certain time t and the load power consumption E2 of the belt conveyor within a certain time t1 by using an electric energy meter or a device (such as an ampere meter) capable of indirectly measuring power consumption, measuring the conveying speed v of the belt conveyor, the lifting height h of the material, as well as a speed v1 parallel to a conveying direction and gravitational acceleration g during entry of the material into the belt conveyor, and carrying out simple calculation so as to obtain the conveying capacity m of the belt conveyor.

Description

technical field [0001] The invention relates to the technical field of belt conveyors, in particular to a method for measuring the delivery volume of a belt conveyor. Background technique [0002] Notification number is the patent introduction of CN1276242 At present, the dynamic calculation devices for conveying materials in belt conveyors basically adopt gamma-ray detectors. "Industrial and Mine Automation" magazine 2019,45(05):100-103 The title of the article "The Current Situation and Development Trend of the Measuring Method of Conveying Volume of Mine Belt Conveyor" introduces the current measuring method of conveying volume of mining belt conveyor, that is, electronic belt scale Measurement method, nuclear tape scale measurement method, ultrasonic distance measurement method, laser CCD image measurement method, laser scanning measurement method. However, these measurement methods have the following problems and disadvantages: they all need to install special equipmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G11/00G06F17/10
CPCG01G11/00G06F17/10
Inventor 周鹤
Owner 周铁垒