On-line material detection method and device based on spectral detection technology

Abstract

The application discloses a material online detection device and method based on a spectrum detection technology. When material flows into a pipeline mirror of a detection object and uniformly fills the mirror, a spectrum sensing assembly is triggered to operate. A light source of the spectrum sensing assembly generates light rays with a wavelength range of 250nm to 1700nm, which are irradiated onto a spectroscope body. The spectroscope body reflects the light rays to perform light source correction, and the remaining light rays penetrate through the spectroscope body to irradiate onto the material. According to the remaining light rays reflected after the material absorbs the light rays, spectrum data of the material is obtained. According to the spectrum data of the material, material characteristics are identified, and the material characteristics include material types, material reaction progress and material phase change. The application reduces product defects caused by material feeding errors in a production process. Without sampling and inspection, the next production operation can be started after the material reaches a reaction node, so that the production efficiency is effectively improved. The application reduces the phenomenon of untimely layering and layering errors caused by manual observation errors or non-in-time notification.

Description

Technical Field

[0001] This invention belongs to the field of online material detection technology, specifically relating to an online material detection method and apparatus based on spectral detection technology. Background Technology

[0002] Pipeline transport systems are an important component of industrial production, typically consisting of pipes, pipe fittings, pumps, valves, sight glasses, and various instruments used to transport gases, liquids, or fluids containing solid particles. Valves are control components in pipeline fluid transport systems, used to change the cross-sectional area of ​​the passage and the direction of medium flow, and have functions such as guiding, stopping, regulating, throttling, checking for backflow, diverting, or overflowing and relieving pressure. Sight glasses are devices used to observe the internal material conditions of equipment; pipeline sight glasses are mainly installed on pipelines to observe the material flowing through them.

[0003] Currently, in industrial production, the feeding or transfer of materials into reactors and the inspection of materials during the production process generally rely on manual observation using microscopes or sampling and testing or material transfer via the opening and closing of pipeline valves, with most valves being manual. During production, after receiving process instructions from the MES system, workers manually check the status of pipelines and valves related to the reactor. Once it is confirmed that the materials meet the requirements, workers manually turn the valves or operate the automated control system to open and close them to release the materials.

[0004] Manual or automated control system-controlled release is a common type of material release on production lines, and its main problems are:

[0005] First, it has poor error prevention: the composition of the incoming solvent from the main solvent pipe cannot be guaranteed to be consistent with the required material during the entire feeding process, and it is impossible to confirm whether the solvent quality pass rate meets the standard.

[0006] Second, weak quality control: The material in the feeding pipe is only observed manually through a test lens. If there are raw materials with similar physical properties, it is impossible to accurately judge whether the material is correct and whether the material quality meets the standards. This may lead to incorrect feeding or feeding of poor quality materials, ultimately resulting in a low product quality pass rate.

[0007] Third, the real-time performance of quality inspection is poor: material quality data cannot be reflected in real time, and the material status can only be checked by on-site operators / inspection personnel. To know the reaction quality and progress, one can only rely on sampling and testing, but the production process is still in progress at this time, which is lagging behind and makes it impossible to effectively synchronize the production status. Summary of the Invention

[0008] To address this, the present invention provides a method and apparatus for online material detection based on spectral detection technology, which solves a series of problems caused by the inability to perform real-time online detection of the status of materials in pipelines.

[0009] To achieve the above objectives, the present invention provides the following technical solution: an online material detection method based on spectral detection technology, comprising:

[0010] When material flows into the sight glass of the pipe being detected and fills the sight glass evenly, the spectral sensing component is triggered to operate.

[0011] The light source of the spectral sensing component generates light with a wavelength range of 250nm to 1700nm, which illuminates the beam splitter body.

[0012] The beam splitter body reflects light for light source correction, and the remaining light passes through the beam splitter body to illuminate the material;

[0013] The spectral data of the material are obtained by reflecting the remaining light after the material absorbs light.

[0014] Material characteristics are identified based on spectral data. These characteristics include material type, reaction progress, and phase change.

[0015] As a preferred solution for online material detection methods based on spectral detection technology, information processing is performed using the application scenario:

[0016] In the material feeding error prevention scenario, determine whether the type of material in the pipe sight glass meets the requirements of the process order;

[0017] In the reaction progress detection scenario, determine whether the material reaction progress in the pipeline sight glass has reached the process requirements;

[0018] In the scenario of phase stratification detection of discharged materials, it is determined whether a phase change occurs during the process of materials flowing through the sight glass of the pipeline.

[0019] The present invention also provides an online material detection device based on spectral detection technology, employing the above-mentioned online material detection method based on spectral detection technology, comprising an outer shell, a quick-release chuck fixing ring connected to the side of the outer shell, a spectral detection port formed on the side of the outer shell, the spectral detection port being located inside the quick-release chuck fixing ring; the spectral detection port is provided with a light-transmitting lens, the light-transmitting lens being fixed to the spectral detection port by a lens fixing ring;

[0020] The housing is further provided with a spectral sensing component, which includes a beam splitter mounting base, a beam splitter fixing plate, and a beam splitter body. One side of the beam splitter mounting base has a light penetration port that communicates with the spectral detection port, and the other side of the beam splitter mounting base has an inclined mounting surface. The beam splitter body is fixed to the inclined mounting surface by the beam splitter fixing plate.

[0021] As a preferred embodiment of an online material detection device based on spectral detection technology, the quick-release chuck fixing ring is connected to the pipe sight glass of the object being detected through the quick-release chuck body;

[0022] The spectral sensing component illuminates the internal material of the object being detected through the light-transmitting lens and the glass lens on the pipe sight glass.

[0023] As a preferred embodiment of an online material detection device based on spectral detection technology, the light-transmitting lens is used to transmit and filter light through the beam splitter body of the spectral sensing component.

[0024] As a preferred embodiment of the online material detection device based on spectral detection technology, the angle between the inclined mounting surface and the horizontal direction is 45°, and the beam splitter body adopts a 45° beam splitter.

[0025] As a preferred embodiment of the online material detection device based on spectral detection technology, a spectral correction plate bracket is provided below the spectrometer fixing base. The side of the spectral correction plate bracket is fixed to the inside of the outer shell, and a spectral correction circuit board is connected to the spectral correction plate bracket. The spectrometer body reflects light onto the spectral correction circuit board.

[0026] As a preferred embodiment of the online material detection device based on spectral detection technology, the side of the beam splitter fixing base is connected to a spectral detection plate fixing bracket, and the spectral detection plate fixing bracket is connected to a spectral sensor detection circuit board. The spectral sensor detection circuit board is used to perform spectral detection on the light transmitted through the beam splitter body.

[0027] As a preferred embodiment of an online material detection device based on spectral detection technology, the beam splitter fixing plate adopts a double-layer structure of silicone layer and metal layer, and the beam splitter fixing plate fixes the edge of the beam splitter body.

[0028] As a preferred embodiment of the online material detection device based on spectral detection technology, the bottom of the housing is provided with a network cable interface and a power cord bayonet connector; the network cable interface is used to connect an external network cable for communication with the spectral sensing component; the power cord bayonet connector is used to fix the power supply cable of the spectral sensing component.

[0029] This invention has the following advantages: When material flows into the sight glass of the detection object and uniformly fills the sight glass, the spectral sensing component is triggered to operate; the light source of the spectral sensing component generates light with a wavelength range of 250nm to 1700nm, which illuminates the spectrometer body; the spectrometer body reflects the light for light source correction, and the remaining light passes through the spectrometer body to illuminate the material; the spectral data of the material is obtained based on the remaining light reflected after the material absorbs the light; the material characteristics are identified based on the spectral data, including material type, material reaction progress, and material phase change. This invention effectively reduces the errors of selecting the wrong raw materials during production and the situation of poor material quality and excessive impurities, thereby reducing product defects caused by incorrect material feeding during production; it eliminates the need for sampling and testing to confirm the reaction node before starting the next production operation, effectively improving production efficiency; it replaces manual observation and notification to the automatic control operator via intercom to control phase stratification, reducing the phenomenon of untimely stratification and stratification errors caused by human observation errors or inadequate notification, providing good error prevention, optimizing on-site quality control, and offering good real-time reading efficiency. Attached Figure Description

[0030] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the online material detection method based on spectral detection technology provided in an embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of the online material detection device based on spectral detection technology provided in an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the internal structure of the online material detection device based on spectral detection technology provided in an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the spectral sensing component structure of the online material detection device based on spectral detection technology provided in this embodiment of the invention;

[0035] Figure 5 This is a cross-sectional schematic diagram of the online material detection device based on spectral detection technology provided in an embodiment of the present invention;

[0036] Figure 6This is a schematic diagram of the spectral correction circuit board and the spectral sensor detection circuit board of the online material detection device based on spectral detection technology provided in this embodiment of the invention.

[0037] In the diagram: 1. Outer shell; 2. Quick-release chuck retaining ring; 3. Spectral detection port; 4. Transmitting lens; 5. Lens retaining ring; 6. Spectral sensing assembly; 7. Beam splitter mounting base; 8. Beam splitter mounting plate; 9. Beam splitter body; 10. Light transmission port; 11. Inclined mounting surface; 12. Spectral correction plate bracket; 13. Spectral correction circuit board; 14. Spectral detection plate mounting bracket; 15. Spectral sensor detection circuit board; 16. Network cable interface; 17. Power cord bayonet connector. Detailed Implementation

[0038] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] See Figure 1 This invention provides an online material detection method based on spectral detection technology, comprising the following steps:

[0040] S1. When the material flows into the sight glass of the pipe of the object being detected and fills the sight glass evenly, the spectral sensing component 6 is triggered to run.

[0041] S2, the light source of the spectral sensing component 6 generates light with a wavelength range of 250nm to 1700nm, which illuminates the beam splitter body 9.

[0042] S3. The beam splitter body 9 reflects light for light source correction, and the remaining light passes through the beam splitter body 9 to illuminate the material.

[0043] S4. Obtain the spectral data of the material based on the remaining light reflected after the material absorbs light;

[0044] S5. Identify material characteristics based on the spectral data of the material. Material characteristics include material type, material reaction progress, and material phase change.

[0045] In one embodiment of the online material detection method based on spectral detection technology, information processing is performed using the usage scenario. In the material feeding error prevention scenario, it is determined whether the type of material in the pipeline sight glass meets the requirements of the process work order.

[0046] In the actual feeding process, especially when different raw material pipelines converge into a main pipeline and enter the reactor, the release operation of the raw material distribution pipeline valve and the main pipeline valve requires manual confirmation of whether the material selection is correct before operation. In the actual operation process, the operator may open the wrong valve, resulting in process errors. During the entire feeding process, it is impossible to guarantee that the composition of the solvent main pipeline is consistent with the expected material and to confirm whether the solvent quality qualification rate meets the standard.

[0047] By applying this invention to a material feeding error prevention scenario, an online spectral sensor is installed on the sight glass of the material pipeline to collect and analyze the spectral data of the material flowing through the sight glass. With the process prompts of the MES system, when the material type and quality conditions are met, the downstream automatic control valve is opened to release the material into the reactor. This effectively reduces the error operation of selecting the wrong raw material and the situation of poor feeding quality and excessive impurities during the production process, thereby reducing product defects caused by feeding errors during the production process.

[0048] In one embodiment of the online material detection method based on spectral detection technology, information processing is performed using the application scenario. In a reaction progress detection scenario, it is determined whether the material reaction progress in the pipeline sight glass has reached the process requirements.

[0049] Specifically, by installing an online spectral sensor on the sight glass of the material circulation pipeline in the bypass of the reactor, the spectral data of the material flowing through the pipeline sight glass is collected and analyzed, and transmitted to the DCS automatic control and MES production management systems, etc., to display the progress of the reaction products in real time and assist in the operation of key production control points. There is no need to take samples for testing to confirm that the reaction node has been reached before starting the next production operation, which effectively improves production efficiency.

[0050] In one embodiment of the online material detection method based on spectral detection technology, information processing is performed using the application scenario. In the scenario of phase stratification detection of discharged material, it is determined whether a phase change occurs in the process of material flowing through the pipe sight glass.

[0051] Specifically, by installing an online spectral sensor on the sight glass of the reactor's discharge pipe, spectral data of the material flowing through the sight glass is collected and analyzed to determine the stratification points. When stratification occurs, a signal is sent in real time to the DCS (Distributed Control System) and MES (Manufacturing Execution System) production management systems, automatically operating the corresponding valves to transport different phases of material to their respective containers. This replaces manual observation and subsequent communication with the automation operator to control phase stratification, reducing delays and errors in stratification caused by human error or inadequate notification.

[0052] In one embodiment of the online material detection method based on spectral detection technology, the ongoing work orders are monitored in conjunction with the process information in the MES system to verify whether the material status is corresponding. Alarm prompts are issued for material pipelines with incorrect feeding, and the prompting methods include on-site alarm lights, system pop-ups, and information platforms (office software such as WeChat and DingTalk) connected to the system.

[0053] In one embodiment of the online material detection method based on spectral detection technology, an online spectral sensor is installed at the production site. All material detection data can be detected, analyzed, viewed, and used on-site. It can interact with the automatic control system and the MES production management system in real time to solve the problem of material feeding errors and assist in timely processing. It can analyze the reaction progress and quality to improve the flexibility of reaction control. Online material discharge detection can effectively solve the problems of phase stratification operation errors and untimely processing.

[0054] In this invention, when material flows into the sight glass of the pipeline being tested and uniformly fills the sight glass, the spectral sensing component 6 is triggered to operate. The light source of the spectral sensing component 6 generates light with a wavelength range of 250nm to 1700nm, which illuminates the spectrometer body 9. The spectrometer body 9 reflects the light for light source correction, and the remaining light passes through the spectrometer body 9 to illuminate the material. The spectral data of the material is obtained based on the remaining light reflected after the material absorbs the light. The material characteristics are identified based on the spectral data, including the material type, the material reaction progress, and the material phase change. This invention effectively reduces the errors of selecting the wrong raw materials during production and the situation of poor material quality and excessive impurities, thereby reducing product defects caused by incorrect material feeding during production. It eliminates the need for sampling and testing to confirm that the reaction node has been reached before starting the next production operation, effectively improving production efficiency. It replaces manual observation and notification to the automatic control operator via intercom to control phase stratification, reducing the phenomenon of untimely stratification and stratification errors caused by human observation errors or inadequate notification. It has good error prevention, can optimize on-site quality control, and has good real-time reading efficiency.

[0055] See Figure 2 , Figure 3 , Figure 4 and Figure 5 In this embodiment of the invention, an online material detection device based on spectral detection technology is also provided. The online material detection method based on spectral detection technology described in the above embodiment includes a housing 1, a quick-release chuck fixing ring 2 connected to the side of the housing 1, a spectral detection port 3 formed on the side of the housing 1, the spectral detection port 3 being located inside the quick-release chuck fixing ring 2; the spectral detection port 3 is provided with a light-transmitting lens 4, the light-transmitting lens 4 being fixed to the spectral detection port 3 by a lens fixing ring 5;

[0056] The housing 1 is also equipped with a spectral sensing component 6. The spectral sensing component 6 includes a beam splitter fixing base 7, a beam splitter fixing plate 8, and a beam splitter body 9. A light penetration port 10 communicating with the spectral detection port 3 is formed on one side of the beam splitter fixing base 7, and an inclined mounting surface 11 is formed on the other side of the beam splitter fixing base 7. The beam splitter body 9 is fixed on the inclined mounting surface 11 by the beam splitter fixing plate 8.

[0057] In this embodiment, the quick-release chuck fixing ring 2 is connected to the pipe sight glass of the object being tested through the quick-release chuck body; the spectral sensing component 6 illuminates the internal material of the object being tested through the light-transmitting lens 4 and the glass lens on the pipe sight glass.

[0058] Specifically, the quick-release chuck body is used to align the spectral optical path with the sight glass lens window, and to quickly install and connect the online material detection device to the pipeline sight glass. The pipeline sight glass can be connected to the material flowing through the pipeline, and the spectral sensing component 6 can detect the internal material through the light-transmitting lens 4 and the glass lens on the pipeline sight glass.

[0059] In this embodiment, the light-transmitting lens 4 is used to transmit and filter light through the beam splitter body 9 of the spectral sensing component 6. The light-transmitting lens 4 is made of high-transmittance glass. After being positioned and installed with the sight glass window of the pipeline, the light-transmitting lens 4 is used to protect the internal optical path components of the spectral sensing component 6 as well as to transmit and filter light.

[0060] In this embodiment, the angle between the inclined mounting surface 11 and the horizontal direction is 45°, and the beam splitter body 9 adopts a 45° beam splitter. The 45° inclined beam splitter body 9 transmits 80% of the light to the material for spectral detection and reflects 20% of the light for spectral signal correction.

[0061] In this embodiment, a spectral correction plate bracket 12 is provided below the beam splitter mounting base 7. The side of the spectral correction plate bracket 12 is fixed to the inside of the outer shell 1, and a spectral correction circuit board 13 is connected to the spectral correction plate bracket 12. The beam splitter body 9 reflects light onto the spectral correction circuit board 13. A spectral detection plate mounting bracket 14 is connected to the side of the beam splitter mounting base 7, and a spectral sensor detection circuit board 15 is connected to the spectral detection plate bracket 14. The spectral sensor detection circuit board 15 is used to perform spectral detection on the light transmitted through the beam splitter body 9. A network cable interface 16 and a power cord bayonet connector 17 are provided at the bottom of the outer shell 1. The network cable interface 16 is used to connect an external network cable for communication with the spectral sensing component 6. The power cord bayonet connector 17 is used to fix the power supply line of the spectral sensing component 6. The beam splitter mounting plate 8 adopts a double-layer structure of silicone layer and metal layer, and the beam splitter mounting plate 8 fixes the edge of the beam splitter body 9.

[0062] Specifically, the spectral correction plate bracket 12 is used to fix the spectral correction circuit board 13, and the spectral detection plate fixing bracket 14 is used to fix the spectral sensor detection circuit board 15. The spectral correction circuit board 13 and the spectral sensor detection circuit board 15 are arranged vertically, and the included angle between the spectral correction circuit board 13, the spectral sensor detection circuit board 15 and the spectrometer body 9 is 45°.

[0063] The spectral correction circuit board 13 receives 20% of the light reflected by the beam splitter body 9 and is used to correct and compensate for the light data signal received by the spectral sensor detection circuit board 15. The spectral sensor circuit board is used to emit light, receive light, process light signal data, communicate with external devices, and power the device.

[0064] See Figure 6 The spectral correction circuit board 13 includes a power supply module, a power supply explosion-proof module, a light source control module, a signal amplification module, a voltage regulator module, an ADC module, an MCU module, an Ethernet module, an RS485 module, a spectral light source, and a spectral receiving sensor module. The power supply module is the power input section, supporting 12V DC power. The core function of the power supply explosion-proof module is to convert the 12V DC input voltage into the voltage required by the various internal modules. The light source control module supports PWM dimming control and DC analog dimming control, and is responsible for controlling the spectral light source. The signal amplification module converts the weak photocurrent sensed by the spectral receiving sensor into a voltage signal. The voltage regulator module provides a highly stable 2.5V voltage. The V voltage power supply provides power to the signal amplification module and the ADC module; the ADC module is connected to the signal amplification module in the front stage, converting the weak photocurrent sensed by the spectral receiving sensor into a voltage signal for data acquisition; the MCU module is the core data processing and logic control unit; the Ethernet module connects to the Ethernet interface communication device via the TCP / IP protocol; the RS485 module communicates upwards, connecting to the RS485 interface communication device via the MODBUS-RTU protocol; the spectral emission sensor and spectral receiving sensor module consists of two parts: four spectral emission sensors and one spectral receiving sensor. The reason for using four spectral emission sensors is to increase the light source intensity and meet more application scenarios.

[0065] The spectral sensor detection circuit board 15 includes a spectral receiving sensor module, which is a photoelectric conversion sensor that responds in the UV-VIS and NIR regions. It is used to detect photons in the 200-950nm complementary metal oxide semiconductor window and to detect photons in the 950-1700nm in indium gallium arsenide window, in response to the light signal emitted by the spectral emission sensor.

[0066] When the material flows into the pipe sight glass and fills it evenly, the online spectral sensor circuit board is triggered to operate. The light source of the spectral sensor circuit board generates 44 kinds of light with a wavelength range of 250nm to 1700nm, which illuminate the beam splitter body 9. The beam splitter body 9 reflects a small amount of light to the spectral correction circuit board 13 for light source correction. The remaining light passes through the beam splitter body 9 and illuminates the material. The material absorbs part of the light according to its characteristics and reflects the remaining light. The spectral sensor circuit board receives the remaining light reflected back after the material absorbs the light, obtains the spectral data of the material, and performs spectral analysis.

[0067] The system can process information according to different scenarios: determining whether the material in the sight glass meets the requirements of the process order for feeding; determining whether the reaction progress of the material in the sight glass meets the process requirements; and determining whether different phase changes occur during the process of the material flowing through the sight glass. Then, through the network cable connected to the RJ45 network interface 16, the processed information is transmitted to the DCS automatic control system and the MES production management system, which control the opening and closing of valves and other pipeline devices to perform operations such as material release, diversion, and waste discharge.

[0068] In summary, the online material detection device based on spectral detection technology of this invention, installed on the production site, enables on-site detection, analysis, viewing, and use of all material detection data. It interacts in real-time with the automatic control system and MES production management system, resolving feeding errors and assisting in immediate handling. It analyzes reaction progress and quality, improving the flexibility of reaction control. Online discharge detection effectively solves problems of phase stratification operation errors and delays. For materials in the feeding pipeline, this invention can accurately determine whether the material is correct and whether its quality meets standards, even with raw materials of similar physical properties. It effectively identifies erroneous or substandard materials that do not conform to process information and links with the automatic control system, effectively improving product quality and pass rate. Material data from feeding, reaction, and discharge stages are automatically collected during production, eliminating the need for sampling and testing records. Through linkage with the automatic control system and MES system, system-level alarms and process recordings are achieved, generating real-time valid feed data and material quality reports. Electronic records are not easily lost. When material data needs to be integrated with the production process for data analysis, the spectral system, in conjunction with the MES system, classifies the collected spectral data and matches it with work orders. The data is categorized and organized by time, type, and purpose to generate reports. It can collect spectral data online in real time, enabling uninterrupted monitoring during production. With a high sampling frequency, it can quickly perform online detection, achieving real-time monitoring, real-time analysis, real-time result viewing, and real-time data transmission to other systems to assist production. Combined with a time-series database, it can read and store material status in real time, ensuring real-time data recording. When combined with electronic batch records for production automation, it offers even greater significance for production analysis.

[0069] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. An online material detection device based on spectral detection technology, wherein the online material detection method based on spectral detection technology includes: When the material flows into the sight glass of the pipe of the object to be detected and fills the sight glass evenly, the operation of the spectral sensing component is triggered; the light source of the spectral sensing component generates light with a wavelength range of 250nm to 1700nm, which is irradiated onto the beam splitter body; the beam splitter body reflects the light for light source correction, and the remaining light passes through the beam splitter body to irradiate the material; the spectral data of the material is obtained based on the remaining light reflected after the material absorbs the light; the material characteristics are identified based on the spectral data of the material, including the material type, the material reaction progress and the material phase change. The device is characterized by including an outer shell (1), a quick-release chuck fixing ring (2) connected to the side of the outer shell (1), a spectral detection port (3) formed on the side of the outer shell (1), the spectral detection port (3) being located inside the quick-release chuck fixing ring (2); the spectral detection port (3) is provided with a light-transmitting lens (4), and the light-transmitting lens (4) is fixed to the spectral detection port (3) by a lens fixing ring (5). The housing (1) is further provided with a spectral sensing component (6), which includes a beam splitter mounting base (7), a beam splitter fixing plate (8), and a beam splitter body (9). The beam splitter mounting base (7) has a light penetration port (10) on one side that communicates with the spectral detection port (3), and an inclined mounting surface (11) on the other side. The beam splitter body (9) is fixed on the inclined mounting surface (11) by the beam splitter fixing plate (8). A spectral correction plate bracket (12) is provided below the beam splitter fixing base (7). The side of the spectral correction plate bracket (12) is fixed to the inside of the outer shell (1). A spectral correction circuit board (13) is connected to the spectral correction plate bracket (12). The beam splitter body (9) reflects light onto the spectral correction circuit board (13). The side of the beam splitter mounting base (7) is connected to a spectral detection plate mounting bracket (14), and the spectral detection plate mounting bracket (14) is connected to a spectral sensor detection circuit board (15). The spectral sensor detection circuit board (15) is used to perform spectral detection on the light transmitted through the beam splitter body (9). The beam splitter fixing plate (8) adopts a double-layer structure of silicone layer and metal layer, and the beam splitter fixing plate (8) fixes the edge of the beam splitter body (9).

2. The online material detection device based on spectral detection technology according to claim 1, characterized in that, The quick-release chuck fixing ring (2) is connected to the pipe sight glass of the object being inspected through the quick-release chuck body; The spectral sensing component (6) illuminates the internal material of the object being detected through the light-transmitting lens (4) and the glass lens on the pipe sight glass.

3. The online material detection device based on spectral detection technology according to claim 1, characterized in that, The light-transmitting lens (4) is used to transmit and filter light through the beam splitter body (9) of the spectral sensing component (6).

4. The online material detection device based on spectral detection technology according to claim 1, characterized in that, The angle between the inclined mounting surface (11) and the horizontal direction is 45°, and the beam splitter body (9) adopts a 45° beam splitter.

5. The online material detection device based on spectral detection technology according to claim 1, characterized in that, The bottom of the outer casing (1) is provided with a network cable interface (16) and a power cable bayonet connector (17); the network cable interface (16) is used to connect an external network cable for communication with the spectral sensing component (6); the power cable bayonet connector (17) is used to fix the power supply line of the spectral sensing component (6).

6. The online material detection device based on spectral detection technology according to claim 1, characterized in that, Information processing based on usage scenarios: In the material feeding error prevention scenario, determine whether the type of material in the pipe sight glass meets the requirements of the process order; In a reaction progress detection scenario, determine whether the material reaction progress in the pipeline sight glass has met the process requirements; In the scenario of phase stratification detection of discharged materials, it is determined whether a phase change occurs in the process of materials flowing through the sight glass of the pipeline.

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