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Method, device and system for controlling drying roller and drying device

A technology of control equipment and control method, applied in drying, lighting and heating equipment, drying solid materials, etc., can solve the problem of slow adjustment response process, poor sand drying effect, inability to quickly and effectively control the water content of sand, etc. problems, to achieve the effects of fast adjustment response, improved production efficiency, and energy utilization

Active Publication Date: 2012-05-09
ZOOMLION HEAVY IND CO LTD
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Problems solved by technology

[0004] However, the solutions in the prior art take a long time from detecting changes in sand moisture content to increasing or reducing pulverized coal input, and then to changes in temperature, and the adjustment response process is slow, which cannot quickly and effectively control sand Moisture content, sand drying effect is not good

Method used

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  • Method, device and system for controlling drying roller and drying device
  • Method, device and system for controlling drying roller and drying device

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Embodiment approach

[0022] In order to prevent the exhaust gas of the drying drum from being too high and cause the dust-proof bag to burn and cause danger, the temperature inside the drying drum can also be monitored. According to a preferred embodiment, the method further includes: receiving a signal representing the temperature in the drying drum, and outputting a temperature value; comparing the temperature value with a given threshold, and outputting a temperature comparison result; if the temperature comparison result is If the temperature value is greater than the given threshold, the coal feeder is controlled to reduce the coal feed rate. Therefore, when the temperature in the drying drum is too high, the temperature in the drying drum can be reduced by reducing the coal feeding amount of the coal feeder.

[0023] According to a preferred embodiment, the coal feeder's coal feed rate can be controlled to increase or decrease according to the water content comparison result, and the coal fe...

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Abstract

The invention discloses a method, device and system for controlling a drying roller and a drying device. The method for controlling the drying roller comprises the following steps of: receiving a signal representing moisture content of sand in the drying roller, and outputting a moisture content value; comparing the moisture content value with a given threshold value, and outputting a moisture content comparison result; and increasing or decreasing the rotation speed of the drying roller based on the moisture content comparison result, namely decreasing the rotation speed of the drying roller when the moisture content value is more than the given threshold value and increasing the rotation speed of the drying roller when the moisture content value is less than or equal to the given threshold value. By adopting the method, device and system for controlling the drying roller and the drying device, the moisture content in sand can be adjusted, the adjustment response speed can be high, the sand can be effectively dried, the production efficiency can be improved and the energy can be effectively used at the same time.

Description

technical field [0001] The invention relates to a drying cylinder control method, equipment, system and drying equipment. Background technique [0002] In the production process of dry powder mortar, the drying process of sand is very important, and the drying process of sand is mainly judged by the moisture content. How to make the water content of the sand within the ideal range is the key task of control. At present, the drying drum is mainly used to dry the sand, and the temperature in the drum is maintained by burning coal powder and blowing hot air into the drum. It is heated in the drum, and the moisture is evaporated. The speed of the drum is constant, and the time for the sand to receive heat in the drum is also constant. [0003] At present, the amount of pulverized coal added is usually determined by detecting the water content of the sand in the sand mouth. If it is found that the water content of the dry sand is too high, then increase the input of coal powde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B25/22
Inventor 齐华王子劼万博邓小梅
Owner ZOOMLION HEAVY IND CO LTD
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