Device for measuring weight of liquid asphalt

A technology for liquid asphalt and asphalt, applied in the field of equipment for measuring the weight of liquid asphalt, can solve the problems of large fluctuation in the quality of asphalt mixture, uncontrollable below 2%, and decreased measurement accuracy.

Inactive Publication Date: 2010-03-17
陈天佑
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AI Technical Summary

Problems solved by technology

These two kinds of weighing and measuring devices are static weighing technology. When the asphalt mixture mixing equipment is working, due to the inevitable vibration generated by the mixing equipment and the difference in the placement of the mixing equipment, the static weighing and measuring accuracy is greatly reduced. The precision specific energy cannot be controlled below 2%, which has a great influence on the quality fluctuation of asphalt mixture

Method used

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  • Device for measuring weight of liquid asphalt

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Embodiment Construction

[0007] from figure 1 It can be seen that the equipment for measuring the weight of liquid asphalt provided by the present invention includes an asphalt tank 1, an asphalt measuring cylinder 2, and a drive cylinder 3. The asphalt tank 1 is connected with the asphalt measuring cylinder 2 through a switch valve 11, and the asphalt measuring cylinder The piston of 2 is driven by the drive cylinder 3, the piston or piston rod of the asphalt metering cylinder 2 is equipped with a displacement sensor 4, the displacement sensor 4 is connected with the PLC controller 5, and the PLC controller 5 controls the drive cylinder 3 through the hydraulic station 6.

[0008] When the present invention is used, the operator first inputs the required asphalt weight value into the PLC controller 5, and the PLC controller 5 converts the weight value into the designated distance that the piston in the asphalt measuring cylinder should move according to the density of the liquid asphalt and stores it, ...

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Abstract

The invention discloses a device for measuring the weight of liquid asphalt, comprising an asphalt box for providing the liquid asphalt, an asphalt metering cylinder for measuring the liquid asphalt and discharging the liquid asphalt under a high pressure, a driving cylinder for driving a piston of the asphalt metering cylinder and a PLC. The asphalt box is connected with the asphalt metering cylinder by a switch valve, the piston or a piston rod of the asphalt metering cylinder is provided with a displacement sensor, the displacement sensor is connected with the PLC, and the PLC controller controls the driving cylinder by signals of the displacement sensor. The invention has simple structure and can reliably work at a stronger vibration state and various placed positions so as to guarantee the measurement accuracy of the liquid asphalt and the quality of the asphalt concrete.

Description

technical field [0001] The invention and the field of road construction machinery particularly relate to a device for measuring the weight of liquid asphalt. Background technique [0002] There are two main types of asphalt metering devices used in asphalt mixing equipment. One is to use weight sensors (commonly known as piezoelectric sensors) and computer technology, and the other is to use weight displacement sensors and computer technology. These two kinds of weighing and measuring devices are static weighing technology. When the asphalt mixture mixing equipment is working, due to the inevitable vibration generated by the mixing equipment and the difference in the placement of the mixing equipment, the static weighing and measuring accuracy is greatly reduced. The precision specific energy cannot be controlled below 2%, which has a great influence on the quality fluctuation of asphalt mixture. Contents of the invention [0003] The object of the present invention is to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G17/06
Inventor 陈天佑戴矿明吴超群
Owner 陈天佑
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