Inlet temperature control device of dust collector of production line

A technology of control device and inlet temperature, applied in furnace control device, furnace, lighting and heating equipment, etc., can solve the problems of aggravating the loss of dust collection equipment and unable to reduce the temperature of flue gas in time, to meet the needs of normal operation, automation High level, safe operation effect

Inactive Publication Date: 2014-02-12
娄卡奔新能源科技发展(上海)有限公司
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Problems solved by technology

However, the opening and closing of the cold air valve in the cement plant is often controlled manually, which has a certain lag and cannot reduce the flue gas temperature in time, which intensifies the loss of dust collection equipment

Method used

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  • Inlet temperature control device of dust collector of production line

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Embodiment Construction

[0019] In the figure, a kind of dust collector inlet temperature control device in cement production is composed of the following parts:

[0020] 1. The air-cooled electric valve installed on the flue gas pipe before entering the dust collector;

[0021] 2. The temperature sensor installed on the flue gas pipe before entering the dust collector;

[0022] 3. The PLC temperature control system that automatically controls the opening of the cold air electric valve according to the temperature signal of the temperature sensor.

[0023] The above-mentioned PLC temperature control system consists of a temperature processing module, an analog expansion module, a PLC controller and a touch screen; the temperature processing module is connected to the temperature sensor installed on the flue gas pipe before entering the dust collector, and the PLC controller The control end is connected with the above-mentioned air-cooled electric valve.

[0024] The invention is a device for controlling the in...

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Abstract

The invention provides an inlet temperature control device of a dust collector of a production line. The inlet temperature control device mainly comprises a cold air electric valve, a temperature sensor and a temperature PLC (programmable logic control) system. The temperature PLC system automatically adjusts opening of the cold air electric valve according to comparison of set values with temperature signals transmitted by the temperature sensor, so that air can flow into a pipeline and is mixed with flue gas, and the temperature of gas which flows into the dust collector can be reduced. The inlet temperature control device has the advantages that the inlet temperature control device can run automatically, the temperature of the gas which flows into the dust collector can be precisely controlled in real time, running conditions of the dust collector can be met, and the inlet temperature control device is high in automation degree and can be operated safely and conveniently.

Description

Technical field [0001] The invention relates to the technical field of cement production, in particular to a temperature control device for the inlet of a dust collector of a production line. Background technique [0002] In the dry cement production technology, the preheater will generate a large amount of high-temperature flue gas, which contains a large amount of cement clinker dust. Therefore, a large bag dust collector or electric dust collector is installed at the end of the kiln. Separate and settle cement clinker dust. However, the dust collector has very high requirements for the temperature of the flue gas entering it, and the temperature must be controlled at about 180°C, otherwise it will damage the internal components of the dust collector and reduce its service life. Therefore, a cold air valve is often opened on the flue gas pipe before entering the dust collector to achieve the purpose of reducing the temperature by mixing the flue gas with the outside air. Howe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D19/00
Inventor 叶金辉
Owner 娄卡奔新能源科技发展(上海)有限公司
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