Portable cement detection device based on dual-energy polarization EDXRF

Abstract

The invention belongs to the technical field of material element analysis, and particularly discloses a portable cement detection device based on dual-energy polarization EDXRF, the portable cement detection device comprises a lofting mechanism, a detection mechanism and a computer system control mechanism, the detection mechanism comprises a high-voltage power supply, an X-ray tube, a secondary target cavity and a detector, the high-voltage power supply is connected with the X-ray tube, and the X-ray tube is connected with the secondary target cavity. The X-ray tube is connected with the secondary target cavity and used for exciting the X-ray tube to emit primary X-rays, the secondary target cavity is connected with the X-ray tube, the primary X-rays pass through the secondary target cavity and excite the secondary target cavity to generate secondary X-rays, the secondary X-rays irradiate a cement sample to be detected to excite and generate fluorescence signals, and the computer system control mechanism is used for outputting components of the cement sample to be detected. According to the portable cement detection device disclosed by the invention, the sensitivity and the accuracy on low-concentration elements are remarkably improved, so that the portable cement detection device is more excellent in analysis of complex samples.

Description

Technical Field

[0001] The invention relates to the technical field of material element analysis, and in particular to a portable cement detection device based on dual-energy polarization EDXRF. Background Art

[0002] Cement raw meal is an important source link in cement production. In the cement production process, the elemental composition analysis of the raw meal out of the mill is crucial for quality control. It usually includes elements such as silicon (Si), aluminum (Al), calcium (Ca), iron (Fe), sulfur (S), potassium (K), as well as reactive silicate indicators (saturation ratio KH), silicon ratio (SM) and aluminum ratio (IM). At present, although traditional chemical analysis methods such as titration and spectroscopy have been widely used, they require sampling and inspection, the operation is cumbersome, and cannot provide instant results, and have limited support for real-time production environments.

[0003] In response to these challenges, researchers have proposed a variety of modern elemental analysis techniques, among which energy dispersive X-ray fluorescence analysis (EDXRF) is particularly prominent. EDXRF technology can quickly and non-destructively analyze the content and composition of each element in a sample through the characteristic X-ray fluorescence generated by the sample under X-ray excitation. Compared with traditional methods, EDXRF is not only easy to operate, but also can analyze multiple elements at the same time, with high detection accuracy, which is suitable for real-time online monitoring needs at industrial production sites.

[0004] In addition, EDXRF technology can also provide accurate data on key indicators (such as saturation ratio KH, silicon ratio SM and aluminum ratio IM), which are essential for the proportion control and quality assurance of cement raw materials. With the advancement of industrial automation and digitalization, real-time element analysis and data feedback will provide important support for the optimization of cement production, energy conservation and consumption reduction, and resource recycling, which is in line with the national policy requirements for energy conservation, emission reduction and circular economy development. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a portable cement detection device based on dual-energy polarization EDXRF in view of the above-mentioned existing deficiencies.

[0006] In order to achieve the above technical objectives, the technical solution adopted by the present invention is:

[0007] A portable cement detection device based on dual-energy polarization EDXRF comprises a layout mechanism, a detection mechanism and a computer system control mechanism, wherein the layout mechanism is used to place cement samples to be tested, the detection mechanism comprises a high-voltage power supply, an X-ray tube, a secondary target cavity and a detector, the high-voltage power supply is connected to the X-ray tube and is used to excite the X-ray tube to emit primary X-rays, the secondary target cavity is connected to the X-ray tube, the primary X-rays pass through the secondary target cavity and excite the secondary target cavity to generate secondary X-rays, the secondary X-rays irradiate the cement samples to be tested and excite to generate fluorescence signals, the detector is used to collect the fluorescence signals, the detector is connected to the computer system control mechanism and can send the fluorescence signals to the computer system control mechanism, the computer system control mechanism is used to control the output of the high-voltage power supply, perform calculations based on the received fluorescence signals, and output the components of the cement samples to be tested.

[0008] To optimize the above technical solutions, the specific measures taken also include:

[0009] A first collimation hole and a second collimation hole are provided on the secondary target cavity, a secondary target is placed in the secondary target cavity, the first collimation hole and the second collimation hole are perpendicular to each other, and the extension lines of the center lines of the two collimation holes intersect at the center of the secondary target, and the primary X-ray is emitted into the secondary target cavity from the first collimation hole.

[0010] The secondary target is divided into two layers, the upper layer is Cr target and the lower layer is Mo target. When the primary X-rays are irradiated on the secondary target, the secondary target simultaneously excites two types of secondary X-rays, high energy and low energy, thereby enhancing the signals of specific elements in cement.

[0011] A target holder is installed in the target cavity of the secondary target. A mounting groove is arranged on the target holder. The secondary target is installed in the mounting groove. A blocking cover is arranged on the mounting groove. The blocking cover covers the secondary target. A hole is opened in the middle of the blocking cover so that the upper surface of the secondary target is exposed while being fixed by the blocking cover.

[0012] The blocking cover is connected to the target seat through threads.

[0013] The layout mechanism includes a measuring window, an industrial handle and a shielding protective cover. The measuring window is opened on the detection mechanism, the cement sample to be tested is placed on the measuring window, the shielding protective cover covers the measuring window, and the industrial handle is installed on the shielding protective cover.

[0014] The detection mechanism also includes an X-ray tube cathode base, a high-voltage cable, a high-voltage power supply base, a left fan support frame, a cooling fan, a right fan support frame, an X-ray tube anode base, an electrical board, a switching power supply, a switch, a detector mounting seat, a detector base connecting column, a detector base, an equipment working indicator light, a foot pad bolt, a shielding protective shell and an industrial three-phase aviation connector. The two ends of the X-ray tube are respectively fixed on the X-ray tube cathode base and the X-ray tube anode base, the high-voltage power supply is fixed on the high-voltage power supply base, and the high-voltage power supply is connected to the X-ray tube cathode through a high-voltage cable. The cooling fan is fixed between the left fan support frame and the right fan support frame. The cooling fan is used to cool the X-ray tube. The electrical board is respectively connected to the high-voltage power supply and the detector. The electrical board is also connected to the computer system control mechanism through the electrical board. The computer system control mechanism can send instructions to the electrical board to enable the electrical board to control the operation of the high-voltage power supply, the detector and the equipment working indicator light. The electrical board is connected to the three-phase electricity of the outside world through the industrial three-phase aviation connector. The switching power supply is installed on the connecting line between the electrical board and the industrial three-phase aviation connector. The lower end of the detector base connecting column is connected to the detector base, and the upper end is connected to the detector mounting seat. The detector is fixed on the detector mounting seat. The X-ray tube cathode base, the X-ray tube anode base, the high-voltage power supply base, the left fan support frame, the right fan support frame, and the detector base are fixed in the shielding protective shell, and the foot pad bolts are installed at the bottom of the shielding protective shell.

[0015] The computer system control mechanism adopts 32 / 64 bit operating system.

[0016] The shielding protective cover has a three-layer structure, wherein the first and third layers are made of stainless steel and the middle layer is a lead plate.

[0017] The measuring window is a two-layer structure, with a nylon hollow disk on the top and a polyimide film on the bottom. A rubber ring is fixed under the nylon hollow disk, and the polyimide film is fixed on the rubber ring.

[0018] The present invention has the following advantages:

[0019] 1. Compared with traditional technologies, the polarized EDXRF of the present invention has significant advantages: its detection limit is low, and it can realize sensitive detection of trace elements; at the same time, it has strong anti-interference ability, and can effectively deal with interference factors in complex industrial environments, ensuring the accuracy and stability of measurement results. This makes the device have extremely high application value and practicality in cement production sites and other real-time analysis demand scenarios.

[0020] 2. The present invention sets a secondary target, which is divided into two layers, the upper layer is a Cr target, and the lower layer is a Mo target. The secondary target simultaneously excites two types of secondary X-rays, high energy and low energy, to enhance the signals of specific elements in cement. This dual-energy polarization EDXRF technology further improves the detection accuracy on the basis of normal polarization EDXRF, significantly improves the sensitivity and accuracy of low-concentration elements, and makes it perform better in complex sample analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of a portable cement composition analysis device.

[0022] Figure 2 It is a schematic diagram of the structure of the secondary target cavity;

[0023] Figure 3 It is the installation diagram of the secondary target;

[0024] Figure 4 It is a linear fitting relationship diagram between the reference content of Ca element in cement standard sample and the result obtained using portable analysis device.

[0025] The reference numerals in the figure are: 1: X-ray tube cathode base, 2: high-voltage cable, 3: high-voltage power supply base, 4: left fan support frame, 5: cooling fan, 6: right fan support frame, 7: X-ray tube, 8: secondary target cavity, 8a: first collimation hole, 8b: second collimation hole, 8c: secondary target, 8d: target seat, 8e: cover, 9: X-ray tube anode base, 10: high-voltage power supply, 11: electrical board, 12: switching power supply, 13: switch, 14: detector mounting seat, 15: detector, 16: detector base connecting column, 17: detector base, 18: equipment working indicator light, 19: foot pad bolt, 20: shielding protective shell, 21: measuring window, 22: industrial handle, 23: shielding protective cover, 24: industrial three-phase aviation connector, 25: industrial control computer. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0027] Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. In addition, it can also be understood that although the efforts made in this development process may be complicated and lengthy, for ordinary technicians in this field related to the content disclosed in this application, some changes in design, manufacturing or production based on the technical content disclosed in this application are just conventional technical means, and should not be understood as insufficient content disclosed in this application.

[0028] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0029] Unless otherwise defined, the technical terms or scientific terms involved in this application should be understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the" and the like involved in this application do not indicate a quantitative limitation, and may represent the singular or plural. The terms "include", "comprise", "have" and any of their variations involved in this application are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or units (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" / "several" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships, for example, "A and / or B" can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects before and after are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0030] like Figure 1As shown, a portable cement component analysis device based on dual-energy polarization EDXRF of the present invention mainly includes three main parts: a sample placement mechanism, a detection mechanism and a computer system control mechanism. The sample placement mechanism is connected to the detection mechanism through a hinge, and is used to provide radiation shielding at the same time; four foot pad bolts are installed under the detection mechanism to stabilize it on the desktop so as to detect and analyze the sample in the sample placement mechanism; the computer system adopts a 32 / 64-bit operating system, and is connected to the measurement mechanism through a switch, and is used to control the measurement system, collect signals and calculate outputs.

[0031] The layout mechanism includes a measuring window 21, an industrial handle 22, and a shielding protective cover 23, which are used to place the cement sample to be tested and shield part of the rays during detection. The measuring window 21 is a 30mm circular window, located above the shielding protective shell 20, and is about 250mm away from the outer edge of the shielding protective shell 20. The industrial handle 22 is made of aluminum alloy and is connected to the shielding protective cover 23.

[0032] The detection mechanism includes an X-ray tube cathode base 1, a high-voltage cable 2, a high-voltage power supply base 3, a left fan support frame 4, a cooling fan 5, a right fan support frame 6, an X-ray tube 7, a secondary target cavity 8, an X-ray tube anode base 9, a high-voltage power supply 10, an electrical board 11, a switching power supply 12, a switch 13, a detector mounting seat 14, a detector 15, a detector base connecting column 16, a detector base 17, an equipment working indicator light 18, a foot pad bolt 19, a shielding protective shell 20, and an industrial three-phase aviation connector 24. The mechanism is used to analyze the composition of cement samples by emitting and receiving X-rays using polarized EDXRF technology. It emits low primary X-rays through the X-ray tube and receives the characteristic X-rays emitted by the X-ray tube through the secondary target to generate secondary X-rays with a high peak background ratio. The rays are used to excite the elements in the cement sample. The received signals will be transmitted to the detector for data acquisition and analysis, and then the presence and content of each element in the sample will be identified.

[0033] The computer system control mechanism includes an industrial control computer 25, which is used to control the start and stop of the entire analysis device, collect analysis signals, and optimize the processing through the built-in algorithm to output the element content that the user is interested in. This mechanism ensures efficient operation of the equipment and accurate analysis of the data.

[0034] The measuring window 21 is a two-layer structure, with a rubber ring under the nylon hollow disk and a 30 μm thick polyimide film under the rubber ring. The entire measuring window is connected to the device by screws.

[0035] The shielding protective cover 23 is a three-layer structure, the first and third layers are made of stainless steel, and the middle layer is a lead plate, so as to shield radiation during measurement and reduce the interference of background on measurement.

[0036] The optical path of the detection mechanism emits primary X-rays from the X-ray tube 7. After passing through the collimating hole of the secondary target cavity 8, part of the rays excite the first layer of Cr target of the multi-layer secondary target, and part of the rays pass through the first target material to excite the second layer of Mo target. The characteristic X-rays (17.45keV) generated by the Mo target material can penetrate the first layer of target material, while the characteristic X-ray fluorescence generated by the first layer of Cr target is not attenuated by the Mo substrate. The characteristic rays of these two energies then pass through another collimating hole of the secondary target cavity 8 and the sample on the layout mechanism to excite secondary fluorescence, and finally the detector 15 records the fluorescence signal.

[0037] The secondary target cavity 8 comprises two mutually perpendicular collimation holes, and the extension lines of the center lines of the two collimation holes intersect at the center of the secondary target piece.

[0038] The design of the secondary target cavity 8 includes several key parts. The top is a cover 8e made of aluminum alloy, with a diameter of 25mm, a height of 5mm, and a 20mm hole in the center. Below the cover 8e is a groove with a depth of 2mm and a diameter of 25mm, which is used to place the secondary target 8c. The cover 8e is fastened to the target base through a threaded connection to ensure the stability of the secondary target inside.

[0039] Inside the secondary target cavity 8, there is a secondary target 8c with a thickness of 200μm and a diameter of 25mm. The secondary target 8c is a multi-layer target structure, with an upper layer of a 25μm thick Cr target and a lower layer of a 175μm thick Mo target. The multi-layer secondary target can simultaneously excite high-energy and low-energy target lines, thereby enhancing the signals of specific elements in cement.

[0040] The X-ray tube 7 is connected to the X-ray tube cathode base 1 and the X-ray tube anode base 9, and is fixed above the partition in the shielding protection shell 20. Its function is to emit primary X-rays to excite the secondary target in the secondary target cavity 8 and the sample on the sample placement mechanism.

[0041] The cooling fan 5 is connected to the left fan support frame 4 and the right fan support frame 6, and is used to dissipate heat for the equipment in the polarization measurement mechanism, thereby improving the stability and accuracy of the measurement.

[0042] The detector 15 is connected to the detector mounting base 14 and fixed above the partition in the shielding protective shell 20 through the detector base connecting column 16 and the detector base 17. Its function is to collect fluorescent signals and convert optical signals into electrical signals and output them to the computer system control mechanism.

[0043] The equipment working indicator light 18 is connected to the high-voltage power supply 10 signal control mechanism in the polarization measurement mechanism, and is used to feedback the operational status of the equipment. The red light indicates the working state (the high-voltage power supply is turned on), and the green light indicates the non-working state (the high-voltage power supply is not turned on).

[0044] The following is a specific case to explain the use scenario of the portable cement detection device based on dual-energy polarization EDXRF of the present invention:

[0045] First, use a sample press to make the cement standard sample into a cement sample. Then, open the shielding protective cover 23 upwards and place the sample above the measurement window 21, making sure that the surface to be tested is facing down. Next, pull down the shielding protective cover 23 to completely cover the sample to be tested. Connect the industrial three-phase aviation connector 24 through the industrial aviation plug to power on the equipment. Subsequently, enter the measurement conditions in the terminal control program of the industrial control computer 25, including voltage 70kV, current 800μA and measurement time 300s, and click the start button to start the measurement. The equipment working indicator light changes from green to red, indicating that the measurement is in progress. After 300 seconds, the measurement is completed, the indicator light changes from red back to green, and the measurement results of each element of the cement sample are displayed on the program interface. The fitting diagram of the measurement results and the standard values ​​is shown in the figure. Figure 4 As shown, the correlation coefficient is about 1. In addition, the absolute error and relative error between the predicted results of Ca content in the 8 standard samples and the reference value are shown in the following table:

[0046] Sample No. Reference value (%) Predicted value (%) Absolute error Relative error GBWO3206A 48.62 48.69 0.07 0.15 GSB08-1345-2014 48.15 48.15 0.00 -0.01 GSB08-1354-2010 37.64 37.66 0.02 0.06 GSB08-1534-2014 33.72 33.77 0.05 0.14 GSB08-1537-2016 44.73 44.61 -0.12 -0.27 GSB08-2986-2013 41.30 41.30 0.00 0.00 GSB08-2991-2014 31.60 31.63 0.03 0.08 GSB08-3200-2014 27.94 27.90 -0.04 -0.15

[0047] Finally, one of the eight groups of standard samples was tested for stability. The standard sample numbered GSB08-2991-2014 was selected for repeatability test 9 times. Each time, three different positions on the standard sample were selected for measurement under the same conditions. The absolute error and relative error between the predicted results of the standard sample and the reference value are shown in the following table:

[0048] Sample No. Reference value (%) Predicted value (%) Standard Deviation RSD(%) GSB08-2991-2014 31.60 31.45±0.02 0.16 0.49

[0049] As shown in the above results, the fitting graph of the measurement results and the standard values ​​shows that the correlation coefficient is about 1, and the relative deviation is less than 0.3%, indicating the accuracy of the method. Among the 8 standard samples, the absolute error and relative error of the predicted results of the Ca element content and the reference value are within a reasonable range, verifying the effectiveness of the measurement method. Finally, the GSB08-2991-2014 standard sample was tested for repeatability 9 times, and the results showed that the predicted value was 31.45±0.02%, and the RSD was less than 0.5%, further proving the stability of the method.

[0050] The above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the present invention.

Claims

1. A portable cement detection device based on dual-energy polarization EDXRF, Its characteristics are: The invention comprises a layout mechanism, a detection mechanism and a computer system control mechanism, wherein the layout mechanism is used to place cement samples to be tested, the detection mechanism comprises a high-voltage power supply (10), an X-ray tube (7), a secondary target cavity (8) and a detector (15), the high-voltage power supply (10) is connected to the X-ray tube (7) and is used to excite the X-ray tube (7) to emit primary X-rays, the secondary target cavity (8) is connected to the X-ray tube (7), the primary X-rays pass through the secondary target cavity (8) and excite the secondary target cavity (8) to generate secondary X-rays, the secondary X-rays irradiate the cement samples to be tested and excite to generate fluorescence signals, the detector (15) is used to collect the fluorescence signals, the detector (15) is connected to the computer system control mechanism and can send the fluorescence signals to the computer system control mechanism, the computer system control mechanism is used to control the output of the high-voltage power supply (10), perform calculations based on the received fluorescence signals, and output the components of the cement samples to be tested.

2. A portable cement detection device based on dual-energy polarization EDXRF according to claim 1, Its characteristics are: The secondary target cavity (8) is provided with a first collimation hole (8a) and a second collimation hole (8b), a secondary target (8c) is arranged in the secondary target cavity (8), the first collimation hole (8a) and the second collimation hole (8b) are perpendicular to each other, and the extension lines of the center lines of the two collimation holes intersect at the center of the secondary target (8c), and the primary X-ray is emitted from the first collimation hole (8a) into the secondary target cavity (8).

3. A portable cement detection device based on dual-energy polarization EDXRF according to claim 2, Its characteristics are: The secondary target (8c) is divided into two layers, the upper layer is a Cr target, and the lower layer is a Mo target. When the primary X-rays are irradiated on the secondary target (8c), the secondary target (8c) simultaneously excites two types of secondary X-rays, high energy and low energy, thereby enhancing the signal of specific elements in cement.

4. A portable cement detection device based on dual-energy polarization EDXRF according to claim 3, Its characteristics are: A target holder (8d) is installed in the secondary target cavity (8), a mounting groove is provided on the target holder (8d), the secondary target (8c) is installed in the mounting groove, a blocking cover (8e) is provided on the mounting groove, the blocking cover (8e) covers the secondary target (8c), and a hole is provided in the middle of the blocking cover (8e), so that the upper surface of the secondary target (8c) is exposed while being fixed by the blocking cover (8e).

5. A portable cement detection device based on dual-energy polarization EDXRF according to claim 4, Its characteristics are: The blocking cover (8e) is connected to the target seat (8d) via threads.

6. A portable cement detection device based on dual-energy polarization EDXRF according to claim 4, Its characteristics are: The layout mechanism comprises a measuring window (21), an industrial handle (22) and a shielding protective cover (23); the measuring window (21) is opened on the detection mechanism, a cement sample to be tested is placed on the measuring window (21), the shielding protective cover (23) covers the measuring window (21), and the industrial handle (22) is installed on the shielding protective cover (23).

7. A portable cement detection device based on dual-energy polarization EDXRF according to claim 6, Its characteristics are: The detection mechanism also includes an X-ray tube cathode base (1), a high-voltage cable (2), a high-voltage power supply base (3), a left fan support frame (4), a cooling fan (5), a right fan support frame (6), an X-ray tube anode base (9), an electrical panel (11), a switching power supply (12), a switch (13), a detector mounting base (14), a detector base connecting column (16), a detector base (17), an equipment working indicator light (18), a foot pad bolt (19), a shielding protective shell (20) and an industrial three-phase aviation connector (2 4), the two ends of the X-ray tube (7) are respectively fixed on the X-ray tube cathode base (1) and the X-ray tube anode base (9), the high-voltage power supply (10) is fixed on the high-voltage power supply base (3), the high-voltage power supply (10) is connected to the cathode of the X-ray tube (7) through a high-voltage cable (2), the cooling fan (5) is fixed between the left fan support frame (4) and the right fan support frame (6), the cooling fan (5) is used to cool the X-ray tube (7), and the electrical panel (11) is respectively connected to the high-voltage power supply (10), The detector (15) and the equipment working indicator light (18) are connected, and the electrical board (11) is also connected to the computer system control mechanism through the electrical board (11). The computer system control mechanism can send instructions to the electrical board (11) so that the electrical board (11) controls the operation of the high-voltage power supply (10), the detector (15) and the equipment working indicator light (18). The electrical board (11) is connected to the external three-phase electricity through the industrial three-phase aviation connector (24). The switching power supply (12) is installed between the electrical board (11) and the industrial three-phase aviation connector (24). The detector base connecting column (16) is connected to the detector base (17) at the lower end and connected to the detector mounting seat (14) at the upper end. The detector (15) is fixed on the detector mounting seat (14). The X-ray tube cathode base (1), the X-ray tube anode base (9), the high-voltage power supply base (3), the left fan support frame (4), the right fan support frame (6), and the detector base (17) are fixed in the shielding protective shell (20). The bottom of the shielding protective shell (20) is equipped with a foot pad bolt (19).

8. A portable cement detection device based on dual-energy polarization EDXRF according to claim 1, Its characteristics are: The computer system control mechanism adopts a 32 / 64 bit operating system.

9. A portable cement detection device based on dual-energy polarization EDXRF according to claim 6, Its characteristics are: The shielding protective cover (23) is a three-layer structure, wherein the first layer and the third layer are made of stainless steel, and the middle layer is a lead plate.

10. A portable cement detection device based on dual-energy polarization EDXRF according to claim 6, Its characteristics are: The measuring window (21) is a two-layer structure, with a nylon hollow disk on the top and a polyimide film on the bottom. A rubber ring is fixed below the nylon hollow disk, and the polyimide film is fixed on the rubber ring.

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