Coal rock identification device while drilling based on elemental analyzer

Abstract

The invention discloses a while-drilling coal rock recognition device based on an element analyzer. The while-drilling coal rock recognition device comprises the element analyzer arranged on a drill rod and a coal rock recognition information monitoring panel connected with the element analyzer through a data cable. Wherein a circuit board and a processor are arranged in the elemental analyzer, and a detection head connected with the circuit board is arranged on the side wall of the elemental analyzer. According to the device, the element analyzer is combined, coal rock recognition in a drill hole is applied, the effects of entering while drilling and real-time monitoring are achieved through integrated connection with the directional through cable drill rod, detection after drill retreating is not needed, and the detection efficiency is improved. Elements formed by substances can be quickly identified, and accurate and real-time information is provided for workers; the inspection head is wrapped by the wear-resistant protective film, so that the detector and the X-ray tube can be protected and are convenient to replace. And meanwhile, the monitoring panel can analyze data in real time and visually and clearly display the coal rock composition in the drill hole, so that the defect of inaccurate manual misjudgment or physical and mechanical monitoring is effectively overcome.

Description

Technical Field

[0001] The invention relates to the technical field of coal-rock identification, and in particular to a coal-rock identification device while drilling based on an element analyzer. Background Art

[0002] Coal-rock identification technology is widely used in coal mining and excavation equipment in the field of coal mining resources. It can automatically adjust the height, direction and other parameters of coal cutting and excavation to avoid excessive rock mining. However, in the field of gas prevention and control, there are few coal-rock identification technologies for fracturing and decompression of coal seams during drilling. Currently, the identification of coal seams and rocks during drilling is mainly done through manual judgment or simple physical detection methods by staff, which is prone to misjudgment and less information is obtained.

[0003] In recent years, with the development of coal-rock identification technology, domestic and foreign scholars have gradually deepened their research on element analyzers such as spectral analysis, X-ray fluorescence, and neutron activation analysis. The research and technology of applying element analyzers to drill pipes for coal-rock identification is becoming increasingly urgent.

[0004] In the process of drilling pressure relief, when using the drill rod for operation, accurately identifying the coal seams and rocks near the drill bit is crucial to building a transparent geological support system that matches the construction of intelligent coal mines. The coal-rock identification device based on the element analyzer can well identify coal and rocks while drilling, with the advantages of synchronous monitoring while drilling and intuitive data display. It can obtain specific and real-time information on the composition of coal and rock in the borehole, meeting the purpose of transparency of geological conditions. Summary of the invention

[0005] The purpose of the present invention is to provide a coal and rock identification device while drilling based on an element analyzer, which is used for synchronous detection, exploration while drilling, rapid identification and specific display; and for revealing and exploring geological information, so as to achieve accurate identification of geological conditions and improve the accuracy of drilling; secondly, it is connected with the drill pipe and can perform synchronous monitoring while drilling, thereby improving the efficiency of exploration.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The present invention provides a coal-rock identification device while drilling based on an element analyzer, comprising an element analyzer arranged on a drill pipe, and a coal-rock identification information monitoring panel connected to the element analyzer via a data cable;

[0008] A circuit board and a processor are arranged in the element analyzer, and a detection head connected to the circuit board is arranged on the side wall of the element analyzer; the detection head includes a detector and an X-ray tube.

[0009] Furthermore, a drill bit is provided at the lower end of the drill rod, and the element analyzer is a cylindrical structure connecting the drill rod and the drill bit; the rotation outer diameter of the element analyzer is smaller than the rotation outer diameter of the drill bit.

[0010] Furthermore, the drill rod is a directional cable drill rod, and a channel for laying the data cable is opened in the drill rod; the data cable includes a data transmission line and a current transmission line to supply power and transmit signals to the element analyzer.

[0011] Furthermore, a reserved groove for installing the detector and the X-ray tube is provided on the side wall of the element analyzer, and a wear-resistant protective film is provided on the outside of the reserved groove;

[0012] The detector is connected to the circuit board, the circuit board is connected to a processor, and the detection data collected by the processor is exported to the coal-rock identification information monitoring panel through the data cable;

[0013] The coal-rock identification monitoring panel includes a host and a display.

[0014] Furthermore, a line hole for connecting the data cable is opened on the end surface of the element analyzer.

[0015] The present invention provides a method for identifying coal and rock while drilling based on an element analyzer, comprising the steps of:

[0016] The coal-rock identification monitoring panel is installed on the drilling well and connected to the drilling rod via a data cable;

[0017] After the drill rod is driven by a motor to drill a hole, after drilling a certain distance, the drill bit is controlled to stop drilling, the element analyzer is started to perform coal and rock identification detection, and then the motor is started to drive the drill rod to rotate about half a circle to drive the element analyzer to rotate, and then, the X-ray tube is used to irradiate the X-ray to the borehole wall to stimulate carbon, silicon, and unknown elements in the coal and rock to be tested to produce secondary X-ray reflections, and the energy and wavelength of the emitted secondary X-rays are collected by the detector and transmitted to the circuit board and processor, and the corresponding energy and wavelength are compared with the corresponding elements one by one to determine the elements with corresponding energy and wavelength; the detection is carried out again and the data is transmitted to the coal and rock identification monitoring panel through the data cable, and the drilling data is displayed and recorded on the panel in real time; after completing a set of inspections, continue to drill a certain distance and perform coal and rock identification, and repeat this step until the drilling is completed.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects: the present invention combines an element analyzer with the identification of coal and rock in the borehole, and achieves the effect of entering and monitoring in real time while drilling by connecting it integrally with the directional cable drill rod. This design can identify coal and rock during the drilling process synchronously, and there is no need to re-test after drilling, so as to improve the efficiency of detection. The element analyzer can quickly identify the elements that make up the material, thereby providing the staff with accurate and real-time information; the inspection head is wrapped with a wear-resistant protective film, which can protect the detector and X-ray tube and is easy to replace. At the same time, the coal and rock identification information monitoring panel can analyze data in real time, and intuitively and clearly display the composition of coal and rock in the borehole, effectively solving the shortcomings of manual misjudgment or inaccurate physical and mechanical monitoring. The transparency of geological information is effectively increased through data recording and analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the coal-rock identification device while drilling based on the element analyzer of the present invention;

[0021] Figure 2 It is a schematic diagram of the coal and rock identification device while drilling based on the element analyzer of the present invention.

[0022] Explanation of the accompanying drawings: 1. drill rod; 2. element analyzer; 3. drill bit; 4. detector; 5. wear-resistant protective film; 6. X-ray tube; 7. detection head; 8. data cable; 9. coal and rock identification information monitoring panel; 10. circuit board. DETAILED DESCRIPTION

[0023] like Figure 1 and Figure 2 As shown, the present invention provides a coal and rock identification device while drilling based on an element analyzer, comprising an element analyzer 2 installed on a drill pipe 1, and a coal and rock identification information monitoring panel 9 connected to the element analyzer 2 via a data cable 8; wherein a circuit board 10 and a processor are installed in the element analyzer 2, and a detection head 7 connected to the circuit board is installed on the side wall of the element analyzer 2; the detection head 7 includes a detector 4 and an X-ray tube 6.

[0024] In this embodiment, a drill bit 3 is installed at the lower end of the drill rod 1; when in use, the drill bit 3 is installed at the lower end of the drill rod 1, and the rotary mechanism and the transmission motor are installed at the upper end of the drill rod 1.

[0025] When implementing it, Figure 2As shown, the element analyzer 2 is a cylindrical structure connecting the drill rod 1 and the drill bit 3; the rotation outer diameter of the element analyzer 2 is smaller than the rotation outer diameter of the drill bit 3. Specifically, the radius of the element analyzer 2 is close to the radius of the drill rod 1, ensuring that the drill hole will not be damaged and can fit the drill hole.

[0026] In this embodiment, the drill rod 1 is a directional cable drill rod, and a hole for laying the data cable 8 is opened in the drill rod 1; the data cable 8 includes a data transmission line and a current transmission line to supply power and transmit signals to the element analyzer 2. The data cable 8 has the functions of data transmission and current transmission.

[0027] In this embodiment, a reserved groove for installing the detector 4 and the X-ray tube 6 is opened on the side wall of the element analyzer 2, and a wear-resistant protective film 5 is installed on the outside of the reserved groove; wherein the detection head 7 is tightly attached to and protected by the wear-resistant protective film 5, and has a smooth transition with the outer wall of the element analyzer 2, thereby ensuring that the detection head 7 will not be worn during the drilling process, and the wear-resistant protective film 5 can be replaced according to the degree of wear, and can be specifically connected by fasteners; wherein the wear-resistant protective film 5 is made of a wear-resistant and dust-proof material (such as glass or tempered glass) to ensure the detection accuracy of the detection head 7.

[0028] In this embodiment, the detector 4 is connected to the circuit board 10, and the circuit board 10 is connected to a processor. The detection data collected by the processor is then exported to the coal rock identification information monitoring panel 9 through the data cable 8; the coal rock identification monitoring panel 9 includes a host and a display; the data imported by the data cable can be subjected to elemental analysis, thereby performing coal rock identification on the material composition near the detection head and displaying it through the display.

[0029] In this embodiment, a line hole for connecting the data cable 8 is opened on the end surface of the element analyzer 2 for arranging the line.

[0030] This embodiment also provides a method for identifying coal and rock while drilling based on an element analyzer, comprising the steps of:

[0031] The coal-rock identification monitoring panel 9 is installed on the drilling well and connected to the drill pipe 1 through a data cable 8. The staff can see the composition of the coal seam or rock near the drill bit 3 through the coal-rock identification monitoring panel 9. If the detector continuously detects rock, it can be judged that the drill bit is drilling into the rock layer, and the drilling is stopped.

[0032] After the drill rod 1 is driven by a motor to drill a hole, after drilling a certain distance, the drill bit 3 is controlled to stop drilling, the element analyzer 2 is started to perform coal and rock identification detection, and then the motor is started to drive the drill rod to rotate 180° to drive the element analyzer 2 to rotate, and then, the X-ray tube 6 is used to irradiate the X-ray to the borehole wall to stimulate carbon, silicon, and unknown elements in the coal and rock to be tested to produce secondary X-ray reflections, and the energy and wavelength of the emitted secondary X-rays are collected by the detector 4 and transmitted to the circuit board 10 and the processor, and the corresponding energy and wavelength are compared with the corresponding elements one by one to determine the elements with corresponding energy and wavelength; detect again (repeat the above steps) and transmit data to the coal and rock identification monitoring panel 9 through the data cable 8, and the drilling data is displayed and recorded on the panel in real time; after completing a set of inspections, continue to drill a certain distance and perform coal and rock identification, and repeat this step repeatedly until the drilling is completed.

[0033] The above embodiments are only descriptions of the preferred methods of the invention, and are not intended to limit the scope of the invention. Without departing from the design spirit of the invention, various modifications and improvements made to the technical solutions of the invention by ordinary technicians in this field should fall within the protection scope of the claims of the invention.

Claims

1. A coal-rock identification device while drilling based on an element analyzer, characterized in that: It comprises an element analyzer (2) arranged on a drill rod (1), and a coal rock identification information monitoring panel (9) connected to the element analyzer (2) via a data cable (8); A circuit board (10) and a processor are arranged in the element analyzer (2), and a detection head (7) connected to the circuit board is arranged on the side wall of the element analyzer (2); the detection head (7) includes a detector (4) and an X-ray tube (6).

2. The device for identifying coal and rock while drilling based on an element analyzer according to claim 1, characterized in that: A drill bit (3) is arranged at the lower end of the drill rod (1); the element analyzer (2) is a cylindrical structure connecting the drill rod (1) and the drill bit (3); and the rotation outer diameter of the element analyzer (2) is smaller than the rotation outer diameter of the drill bit (3).

3. The device for identifying coal and rock while drilling based on an element analyzer according to claim 2, characterized in that: The drill rod (1) is a directional cable drill rod, and a hole for laying the data cable (8) is opened in the drill rod (1); the data cable (8) includes a data transmission line and a current transmission line to supply power to the element analyzer (2) and transmit signals.

4. The device for identifying coal and rock while drilling based on an element analyzer according to claim 3, characterized in that: A reserved groove for installing the detector (4) and the X-ray tube (6) is provided on the side wall of the element analyzer (2), and a wear-resistant protective film (5) is provided outside the reserved groove; The detector (4) is connected to the circuit board (10), the circuit board (10) is connected to a processor, and the detection data collected by the processor is exported to the coal-rock identification information monitoring panel (9) through the data cable (8); The coal-rock identification monitoring panel (9) comprises a host and a display.

5. The device for identifying coal and rock while drilling based on an element analyzer according to claim 4, characterized in that: A line hole for connecting the data cable (8) is provided on the end surface of the element analyzer (2).

6. A method for identifying coal and rock while drilling based on an element analyzer, according to the device for identifying coal and rock while drilling based on an element analyzer according to any one of claims 1 to 5, characterized in that: Includes steps: The coal-rock identification monitoring panel (9) is installed on the drilling well and connected to the drilling rod (1) via a data cable (8); Then, the motor drives the drill rod (1) to drill a hole. After drilling a certain distance, the drill bit (3) is controlled to stop drilling, and the element analyzer (2) is started to perform coal and rock identification detection. Then, the motor is started to drive the drill rod to rotate 180 degrees, so as to drive the element analyzer (2) to rotate. Then, the X-ray tube (6) is used to irradiate the wall of the borehole with X-rays to stimulate carbon, silicon, and unknown elements in the coal and rock to be tested to produce secondary X-ray reflections. The energy and wavelength of the emitted secondary X-rays are then collected by the detector (4) and transmitted to the circuit board (10) and the processor. The corresponding energy and wavelength are compared with the corresponding elements one by one to determine the element with the corresponding energy and wavelength. The test is performed once more and the data is transmitted to the coal-rock identification monitoring panel (9) via the data cable (8), and the panel displays and records the drilling data in real time; after completing a set of tests, the drilling continues for a certain distance and the coal-rock identification is performed, and this step is repeated repeatedly until the drilling is completed.

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