Temperature control method and system for shuttle kiln

Abstract

The invention relates to the technical field of kilns, in particular to a temperature control method and system of a shuttle-type kiln, the system comprises a PLC, the PLC is connected with at least two gas valve actuators, each gas valve actuator is connected with a plurality of gas pipelines, the tail end of each gas pipeline extends into the kiln, and the tail end of each gas pipeline is connected with the PLC. A burner or a temperature sensor is arranged at the tail end of each gas pipeline; the burners have different heights; each temperature sensor is connected with the PLC; the method comprises the steps that a PLC obtains a temperature signal obtained by detecting the interior of a kiln through each temperature sensor, and if the internal temperature of the kiln is not uniform, the opening degree of each gas pipeline is determined according to each temperature signal so that the internal atmosphere of the kiln can be adjusted to be the oxidizing atmosphere; the fuel gas valve actuator adjusts the opening degree according to the opening degree control signal so as to adjust the proportion of fuel gas and air entering the burner; the temperature uniformity and stability of the kiln are improved, and the firing quality of the kiln is improved.

Description

technical field [0001] The invention relates to the technical field of kilns, in particular to a temperature control method and system for a shuttle kiln. Background technique [0002] A shuttle kiln is a type of shuttle kiln for batch firing with a structure similar to a matchbox. Since the shuttle kiln is fired intermittently, the loss of heat storage and heat dissipation of the shuttle kiln is often large. In order to compensate for the heat loss of the shuttle kiln, the relevant operators usually adjust the temperature of the shuttle kiln Gas flow or supply air volume. [0003] However, this adjustment method is usually not precise enough, which often leads to the firing temperature of the shuttle kiln being too high or too low, and the operator cannot accurately understand the working conditions of the shuttle kiln; at the same time, the temperature inside the shuttle kiln Unevenness and instability will also affect the firing quality of utensils. Contents of the in...

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Problems solved by technology

[0003] However, this adjustment method is usually not precise enough, which often leads to the firing temperature of the shuttle kiln being too high or too low, and the operator cannot accurately understand the working conditions of the shuttle kiln; at the same time, the temperature inside the shuttle kiln Unevenness and instability will also affect the firing quality of utensils

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