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A method and system for automatic temperature adjustment control of a sand core surface drying furnace

A technology of surface drying and control method, which is applied in the direction of temperature control with electric mode, auxiliary controller with auxiliary heating device, etc., which can solve the problems of reduced running speed of roller table, prolonged sand core time, energy waste, etc. To achieve the effect of quality assurance, efficiency improvement and energy saving

Active Publication Date: 2020-10-16
GUANGXI YUCHAI MASCH CO LTD
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Problems solved by technology

The main disadvantages of this control are: when the conveying efficiency of the roller table decreases, the running speed of the roller table will decrease, the time of the sand core in the furnace will be prolonged, and the product quality will be affected by constant temperature heating for a long time. At the same time, constant temperature heating for a long time will cause massive waste of energy

Method used

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Embodiment Construction

[0022] The present invention will be further described below.

[0023] A sand core surface drying furnace automatic temperature regulation control method, the method is in the drying furnace from the input end to the output end sequentially provided with a plurality of heating zones, and respectively set the heating temperature of each heating zone according to the specific process; Obtain the conveying efficiency of the roller conveying equipment in real time, and adjust the heating temperature of each heating zone in real time according to the conveying efficiency.

[0024] Adjust the heating temperature of each heating zone in real time as follows:

[0025] When the conveying efficiency is reduced, the applicable formula for adjusting the temperature value is: Y=T0-(A-X) B, where Y is the adjusted temperature value, T0 is the highest set temperature value, A is the highest efficiency of the roller table, and X is The current efficiency of the roller table, B is the tempera...

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Abstract

The invention discloses an automatic temperature adjustment control method for a sand core surface drying furnace. The method comprises the steps that a plurality of heating areas are sequentially arranged from the input end to the output end in the drying furnace, and the heating temperature of each heating area is respectively set according to specific technologies; and the transport efficiencyof a roller way transporting device is acquired in real time, and the heating temperature of each heating area is adjusted in real time according to the transport efficiency. The invention discloses an automatic temperature adjustment control system, corresponding to the method, for the sand core surface drying furnace. According to the automatic temperature adjustment control method and system for the sand core surface drying furnace, product quality can be effectively guaranteed, and energy is saved.

Description

technical field [0001] The invention relates to the technical field of industrial oven equipment, more specifically, it relates to an automatic temperature adjustment control method and system for a sand core surface drying oven. Background technique [0002] The sand core surface drying furnace is one of the main equipment in the casting process, and it is also a device that consumes a lot of energy. The sand core is input from the input end of the drying furnace through the roller conveying equipment, and comes out from the output end of the drying furnace, which can realize Online drying, high production efficiency. [0003] At present, the sand core surface drying furnace mainly adopts constant temperature control. The control temperature of the drying furnace does not change with the roller conveying efficiency (the conveying efficiency is the number of sand cores conveyed to the drying furnace per unit time). It can only be changed according to the temperature of the t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D23/30
Inventor 梁伟明
Owner GUANGXI YUCHAI MASCH CO LTD
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