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Quick cooling method of heating plate of continuous operation press and continuous press

A heating plate, heating plate temperature technology, applied to fiberboard or such composite wood product boards, continuous manufacturing such as clamping boards

Inactive Publication Date: 2010-05-26
DIEFFENBACHER GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this has not been sufficiently successful in currently existing twin-belt presses

Method used

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  • Quick cooling method of heating plate of continuous operation press and continuous press
  • Quick cooling method of heating plate of continuous operation press and continuous press
  • Quick cooling method of heating plate of continuous operation press and continuous press

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Next to the external construction of a press in continuous operation, the construction is assumed to be known, figure 1 Shows a side view of a section between the steel strip 1 and the heating plate 4 with the flow channel 5 arranged therein for the flow of the thermostatically treated fluid and the heating plate for direct measurement of the roll side temperature of the piercing probe6. There is also a hard expansion plate 3 on the heating plate, and the rolling bar 2 can roll on the expansion plate 3 . exist figure 2In this case, a heating plate 7 at a constant temperature of approximately 290° C. is connected in the inlet area to a constant-temperature fluid flow of a prerun (primar Vorlauf) 10 and a return run (Rucklauf) 9 . In normal operation, the valve 12 controls the flow in the direction of the inlet heating plate 7 to a constant temperature pre-run 10 of about 320°C. For emergency cooling, the valve 13 is adapted to control the injection flow from the cool...

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PUM

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Abstract

The present invention relates to a method for continuously manufacturing the composite wood product board with the continuous running press. The invention rests with in the condition that the pullingforward speed of the pressurizing object pad in the continuous running press is rapidly reduced to a determined value until to zero, the importing of the heating medium imported to the heating plate with temperature below 200 DEG C is stopped, and a heating medium with temperature below 200 DEG C (preferably below 100 DEG C) is leaded in to cool the heating plate. The continuous-running press runsin this way in order that the heating plate is filled with the hot or cold medium selectively.

Description

technical field [0001] The present invention relates to a method for the continuous manufacture of panels of composite wood products, such as clamping boards, fibreboards or the like, and to a continuously operating press for carrying out the method. Background technique [0002] The highest heated plate temperature currently applied when compressing composite wood product mats in a continuously operating press is 250°C. In order to achieve an increased press speed, in addition to measures such as pad preheating, the temperature of the heating plate can also be further increased. An increased heating plate temperature (mainly in the front area of ​​the press) enables rapid heating of the steel belt and circulation elements (rollers, chains) at the inlet, reaching a higher steel belt after a few meters of press length temperature. By rapidly heating the steel strip and thus reaching a higher temperature level, the heating time can be shortened, ie the elapsed time to reach ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27N3/18B27N3/26G12B15/00G05D23/00B27N3/24B30B15/34
CPCB27N3/24B27N3/26B27N3/18
Inventor 吉诺特·冯哈斯
Owner DIEFFENBACHER GMBH & CO KG