Monitoring device for liquid level and flow velocity of liquid iron in torpedo tank truck

Abstract

The invention discloses a monitoring device for liquid level and flow velocity of liquid iron in a torpedo tank truck. The monitoring device comprises a foundation brake device and a piezoelectric sensing device. The foundation brake device is placed in a bogie of the torpedo tank truck, the piezoelectric is arranged at a gap between swing bolsters and consists of a base, a sleeve, a transmissionrod, a transmission spring and a piezoelectric sensor, the base, the sleeve, the transmission rod and the transmission spring are mounted at the bottom of the gap, the piezoelectric sensor is embedded into a groove of the surface of the base, the sleeve is arranged above the piezoelectric sensor, the upper end of the sleeve is abutted to the top of the gap, the transmission rod is in sliding fit with the inside of the sleeve, the transmission spring is disposed between the transmission rod and the sleeve, the transmission rod presses on the piezoelectric sensor, the piezoelectric sensor is externally connected with the direct-current power source, a signal output end of the piezoelectric sensor is connected with a signal conditioning circuit, a signal output end of the signal conditioningcircuit is connected into a wireless receiving / transmitting module, a single chip microcomputer control system is arranged in a control room, and a single chip microcomputer is connected with a wireless transmitting / receiving module, is in control connection with a liquid iron switch and is externally connected with a display module, an alarm system and a single threshold controller. The monitoring device for the liquid level and the flow velocity can be used in severe environments with high temperature, dust and the like, and is easy to install and maintain without destroying an original structure of the torpedo tank truck.

Description

technical field [0001] The invention relates to the field of monitoring, in particular to a monitoring device for the liquid level and flow velocity of molten iron in a torpedo tank car. Background technique [0002] The liquids used in steelmaking in various domestic steel mills are mostly contained and transported by torpedo tankers or ladles. During the loading process, the scorching liquid creates a high-temperature environment near the torpedo tank car or ladle, which makes it inconvenient to directly observe the weight or liquid level of the molten iron in the container, resulting in misjudgment of the filling time of the liquid diversion tank. Premature filling means that the tank car is not full, which reduces the utilization rate of the tank car; too late filling will cause liquid iron water to overflow from the tank car, leading to major accidents. [0003] At present, iron factories at home and abroad mostly use the method of weighing to measure the liquid level ...

AI Technical Summary

Problems solved by technology

The common method is as follows: install a weighing head (piezoelectric sensor) under the blast furnace taphole rail to carry out real-time weighing of the tank car or liquid package being filled. It is extremely difficult; stick deformation strain gauges on both sides of the rail, and convert the deformation signal into a liquid level signal to control the filling of the molten iron diversion tank. Due to the small deformation of the rail, the measurement accuracy is low; use weighing platforms and bench scales Weighing methods, as well as ladle crane scales, directly weigh to predict the liquid level, but this method is not conducive to installation and use, and the measurement efficiency is low

[0004] In view of the above-mentioned reasons, most domestic iron factories use manual long-distance direct vision to observe the liquid molten iron level. For observers, the environment is harsh (high temperature, large dust), and vicious accidents such as tank overflow will occur if there is a slight negligence

Images