High temperature blast hole temperature measuring device and high temperature blast hole temperature measuring method

A technology of high-temperature blast hole and temperature measuring device, which is applied in the field of temperature measuring device and high-temperature blast hole temperature measuring device, which can solve the problems of unguaranteed blast hole, slow response time of temperature measurement, and influence on thermocouple, etc., so as to avoid the blind area of ​​temperature measurement , long life, improved speed and accuracy

Active Publication Date: 2016-07-20
HONGDA MINING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional thermocouple temperature measurement belongs to the contact temperature measurement. Because the contact temperature measurement needs to reach the thermal equilibrium to obtain the temperature, it has the disadvantage of slow temperature measurement response time. In addition, the thermocouple measures the temperature of the air in the blast hole, which cannot It completely and truly reflects the temperature of the hole wall, especially the large amount of water vapor that exists after the high-temperature blast hole is cooled by water injection, which seriously affects the temperature measurement effect of the thermocouple
Wireless infrared temperature measurement has the advantages of fast response speed, high temperature measurement upper limit, and easy portability, but it is easily affected by factors such as blasthole depth, smoke, water vapor, etc., resulting in large errors. In addition, this method cannot guarantee different depths in blastholes. The temperature can be measured, so there is a temperature measurement blind zone, that is, there is a possibility that the measured maximum temperature is lower than the actual maximum temperature

Method used

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  • High temperature blast hole temperature measuring device and high temperature blast hole temperature measuring method
  • High temperature blast hole temperature measuring device and high temperature blast hole temperature measuring method
  • High temperature blast hole temperature measuring device and high temperature blast hole temperature measuring method

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Effect test

Embodiment 1

[0036] Such as figure 1 and figure 2 As shown, the present embodiment provides a high-temperature blasthole temperature measuring device, which includes an infrared temperature sensor 1, a cable 2, an air blower 3, a heat-resistant tube 4, an air pump 5, a display 6 and a weight 7 , one end of the heat-resistant pipe 4 is connected to the air pump 5, and the other end is connected to the air purger 3, the infrared temperature sensor 1 is fixed in the air purger 3, and one end of the cable 2 is connected to the display 6 The other end is connected to the infrared temperature sensor 1 after passing through the heat-resistant pipe 4, and the weight 7 is fixed below the air blower 3.

[0037] The air pump 5 can deliver air through the heat-resistant tube 4, and in addition to providing air for the air purger 3, it can also air-cool the infrared temperature sensor 1 and the cable 2, so that the entire temperature measuring device can be used in a high-temperature environment . ...

Embodiment 2

[0047] This embodiment provides a method for measuring the temperature of a high-temperature blast hole, comprising the following steps:

[0048] Step 1. Turn on the air pump to deliver air to the air purger through the heat-resistant tube;

[0049] In this step, the air volume delivered by the air pump can ensure that the air purger blows away the dust or water vapor around the measuring point, and ensures the air cooling effect of the entire temperature measuring device;

[0050] Step 2. After turning on the display, turn on the storage function and set the sampling frequency;

[0051] In this step, the sampling frequency set by the display matches the response time of the infrared temperature sensor;

[0052] Step 3. Lower the air purger fixed with the infrared temperature sensor into the blast hole steadily;

[0053] In this step, the lowering speed of the infrared temperature sensor matches the response time of the infrared temperature sensor;

[0054] Step 4. After the ...

Embodiment 3

[0060] Such as image 3 and Figure 4 As shown, the present embodiment provides a high-temperature blasthole temperature measuring device, which includes an infrared temperature sensor 1, a cable 2, an air blower 3, a heat-resistant tube 4, an air pump 5, a display 6 and a weight 7 , wherein there are four infrared temperature sensors 1 and air purgers 3, each infrared temperature sensor 1 is fixed in an air purger 3, and the four air purgers 3 are circumferentially along the other end of the heat-resistant pipe 4 Symmetrical distribution, that is, an air blower 3 is set every 90 degrees in the circumferential direction of the other end of the heat-resistant pipe 4. In order to make the four air blowers 3 can effectively blow off dust or water vapor, the air pump 5 can be increased to deliver The amount of air; the symmetrical distribution of the air purger 3 is conducive to maintaining the stability of the infrared temperature sensor 1, and can measure four different directi...

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Abstract

The invention discloses a high temperature blast hole temperature measuring device and a high temperature blast hole temperature measuring method. The device comprises an infrared temperature sensor, a cable, an air purge device, a heat-resisting pipe, an air pump, a display instrument and a weight. One end of the heat-resisting pipe is connected to the air pump and the other end is connected to the air purge device. The infrared temperature sensor is fixed in the air purge device. An infrared emission port position of the infrared temperature sensor corresponds to a purge port position of the air purge device. One end of the cable is connected to the display instrument and the other end passes through the heat-resisting pipe and then is connected to the infrared temperature sensor. The weight is fixed below the air purge device. In the invention, the infrared temperature sensor is used to increase temperature measurement response time; hole wall temperatures with different depths of a blast hole can be rapidly scanned and measured; through the air pump, air is continuously filled in the heat-resisting pipe so as to cool the cable and the infrared temperature sensor; and through the air purge device, dust or water vapor in the blast hole can be blown away and then the hole wall temperatures of the blast hole can be measured.

Description

technical field [0001] The invention relates to a temperature measuring device, in particular to a high temperature blast hole temperature measuring device and a high temperature blast hole temperature measuring method, belonging to the technical field of blasting engineering. Background technique [0002] High-temperature fire areas can easily lead to accidental explosions or premature explosions during open-pit perforation blasting, which seriously restricts the completion of stripping production tasks. Therefore, in order to ensure the safety of blasting mining, it is necessary to obtain the temperature distribution inside the blast hole and judge the cooling effect of water injection, that is, accurate and effective Measuring the temperature of the wall of the high-temperature blast hole is an important prerequisite for high-temperature blasting scheme design and safe construction organization. High-temperature blastholes are generally composed of the wall of the hole, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/00G01J5/02
CPCG01J5/00G01J5/051
Inventor 林谋金刘畅李战军崔晓荣刘翼王佩佩
Owner HONGDA MINING IND
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