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On-line monitoring method of water content in growing balls in chain grate

A chain grate, moisture technology, applied in special data processing applications, instruments, electrical digital data processing and other directions, can solve the problem of not monitoring the moisture content of raw balls, improve drying effect, optimize thermal system, reduce bursting Effect

Active Publication Date: 2017-02-22
PANZHIHUA GANGCHENG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no method in the prior art that can accurately and timely monitor the water content of raw balls

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0017] Example: related data, hourly air intake 2×10 5 m 3 / h, hourly air volume 2×10 5 m 3 / h, the absolute humidity of the air inlet is 0mg / L, the absolute humidity of the air outlet is 92mg / L, the initial moisture content of the green ball is 9%, the speed of the grate machine is 2m / min, the width is 4m, the material thickness is 200mm, and the bulk density is 2.2t / m 3 .

[0018] Final moisture content of green balls = (hourly air intake × absolute humidity of air inlet + chain grate machine speed × material thickness × width × bulk density × initial moisture of green balls - hourly air output × absolute humidity of air outlet) ÷ (chain grate machine speed×material thickness×width×bulk density)

[0019] =(2×10 5 m 3 / h×0mg / L+2m / min×200mm×4m×2.2t / m 3 ×9% - 2×10 5 m 3 / h×60mg / L) / (2m / min×200mm×4m×2.2t / m 3 )

[0020] =(0+120×0.2×4×2.2×9%-2×10 5 ×94×10 ﹣6 ) / (120×0.2×4×2.2)

[0021] =(19.008-18.4) / 19.008

[0022] =3.19%

[0023] If the best empirical data of the f...

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PUM

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Abstract

The invention discloses a method for monitoring the moisture of green pellets in a chain grate on line and in particular provides a method for monitoring the moisture of green pellets in the chain grate on line, which is used in the field of pellet production. The invention provides the method capable of accurately and timely monitoring the moisture of green pellets in the chain grate on line. The method comprises the following steps: a. measuring the supply air rate per hour of the chain grate, the speed of the chain grate, the material thickness, the material width, the material bulk density, the initial moisture of the green pellets and the air discharge rate per hour, and detecting the absolute humidity at an air outlet and air inlet of the chain grate in real time; b. transmitting the data obtained through measurement and real-time detection in the step a to a computer; c. computing the final total moisture of the green pellets by utilizing the computer according to a formula. Therefore, the moisture removal conditions of the green pellets in the drying process can be mastered in real time, thus timely regulating the process parameters, improving the green pellet drying effects, reducing the thermal implosion and the dust content and optimizing the thermal regulation.

Description

technical field [0001] The invention relates to a method for on-line monitoring of the water content of green balls in a chain grate machine, in particular to a method for on-line monitoring of water content of green balls in a chain grate machine in the field of pellet production. Background technique [0002] The chain-back-global pellet production line is currently the most common pellet production line in China. The thermal route of the chain-back-global pellet production line is: raw pellet drying-preheating-oxidation roasting-cooling-pelletizing. The drying and preheating process of green balls is mainly carried out in the grate machine. The drying effect of green balls directly affects the preheating and roasting of green balls. If the drying effect is poor and the moisture in the green balls cannot be removed in time, it will burst in the subsequent preheating and roasting processes, resulting in a large number of broken balls and powder, which will affect the entir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00C22B1/20
Inventor 邓尚峰朱洪兴
Owner PANZHIHUA GANGCHENG GROUP