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Variable-frequency energy-saving control system of tunnel kiln

An energy-saving control system and tunnel kiln technology, which is applied to the types of furnaces, furnaces, lighting and heating equipment, etc., can solve the problems of high consumption of machines in the tunnel kiln and unstable temperature control, so as to reduce unnecessary waste of energy, reduce noise and Mechanical wear, reduce the effect of blind operation

Inactive Publication Date: 2012-05-23
寿阳县明鑫铝矾耐火材料有限公司
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AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies in the above-mentioned prior art, the present invention designs a frequency conversion energy-saving control system for tunnel kilns, which solves the problems of large consumption of internal machines in tunnel kilns and unstable temperature control.

Method used

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  • Variable-frequency energy-saving control system of tunnel kiln

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Embodiment Construction

[0009] figure 1 As shown, the tunnel kiln frequency conversion energy-saving control system of the present invention controls the operation of the fan by connecting a frequency converter between the fan and the power supply installed in the tunnel kiln for sintering refractory bricks, so as to achieve energy-saving and power-saving effects. figure 1 A frequency conversion controller D is installed between the drying exhaust fan A1 of the drying kiln and the AC power supply. The main smoke exhaust fan A2 connected to the tunnel kiln, the smoke exhaust fan A3 under the kiln, the blower A4 under the kiln, the combustion-supporting fan A5, the waste heat extraction fan A6, the cooling fan A7 and the power supply are all equipped with a frequency conversion controller D. A pressure sensor B and a temperature control sensor C are installed inside, the pressure sensor B is connected to the frequency converter connected to the main smoke exhaust fan A1, the frequency converter of the ...

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Abstract

The invention discloses a variable-frequency energy-saving control system of a tunnel kiln and is applicable to a fan system of the tunnel kiln for sintering refractory bricks. A variable frequency controller is connected between each fan and a power supply; main fans are controlled by a pressure sensor and a temperature controller, which are arranged in the tunnel kiln; and based on the high pressure and temperature change of the inside of the tunnel kiln, the rotary speeds of the fans are timely changed, and the air exhaust amount is changed. By changing the rotary speeds of the fans, the blind operation probability of the fans is greatly reduced, the unreasonable wasting of energy sources is avoided, the temperature and pressure of the inside of the tunnel kiln are particularly stabilized, and the quality of products is guaranteed. A test shows that: by adoption of the variable-frequency energy-saving control system of the tunnel kiln, one third of electricity can be saved, and noise and mechanical abrasion are reduced.

Description

technical field [0001] The invention relates to an energy-saving control system for electricity consumption, in particular to an energy-saving control system suitable for tunnel kilns. Background technique [0002] The tunnel kiln is a continuous firing kiln. The product enters from the kiln head, preheats through the preheating zone, enters the firing zone for firing, and then enters the cooling zone to cool and is ejected from the kiln tail. The pressure system in the kiln during the firing process, the temperature and the atmosphere after firing are mainly controlled by the fan. Although the heat utilization rate of the tunnel kiln is high, the output is large, and the labor intensity is low, if the control is not good, the pressure system and atmosphere in the kiln will be reduced. It greatly affects the product quality, and because of the large power and quantity of the fan motors, the power consumption is large. An ordinary tunnel kiln is equipped with 7 fans, with a t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B9/40
Inventor 霍增斌张继明
Owner 寿阳县明鑫铝矾耐火材料有限公司
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