Machine-made aggregate chemical component online monitoring system and method

Abstract

The invention discloses a machine-made aggregate chemical component on-line monitoring system. The system comprises an automatic identification module used for identifying whether machine-made aggregate is produced on a machine-made aggregate finished product transport line; the sampling module is used for obtaining a sample of the machine-made aggregate and conveying the sample to the pretreatment module after the machine-made aggregate is produced; the pretreatment module is used for receiving samples for pretreatment, conveying the pretreated samples to a detection area of the component detection module, and conveying the pretreated samples to a machine-made aggregate finished product conveying line after detection; the temperature and humidity control module is used for regulating and controlling the temperature and humidity of the detection area to a preset range; the component detection module is used for detecting the pretreated sample and transmitting a detection result to the data processing module; and the data processing module is used for processing and analyzing the detection result to obtain an analysis result, and sending an alarm prompt when the analysis result is abnormal. And the chemical component content of the machine-made aggregate on the production line can be monitored in real time.

Description

Technical Field

[0001] The present invention relates to the field of image detection technology, and more particularly to an online monitoring system and method for the chemical composition of machine-made aggregates. Background Art

[0002] Mechanized aggregate is made from rocks after soil removal, mechanical crushing, screening and shaping, with particle size, shape and grading meeting the requirements. As raw material for concrete, it is the main measure to solve the shortage of construction material resources, and it is also an important direction for the green development of building materials.

[0003] The chemical composition of the parent rock of machine-made aggregate is its inherent property and does not change with mechanical processing. The properties of the parent rock determine the "genetic quality" of the machine-made aggregate. The main sources of parent rock include primary mines, tunnel slag, pebbles and gravel, which result in the machine-made aggregate having complex lithology and diverse chemical composition. The frequent fluctuations in the chemical composition of the aggregate will cause poor quality stability of the finished product and make it difficult to use in concrete. In addition, the harmful element S in the aggregate has a corrosive effect on concrete, deteriorating the strength and durability of concrete, and the harmful element Cl in the aggregate accelerates the corrosion of steel bars in concrete. Therefore, controlling the stability of the chemical composition of the machine-made aggregate is crucial to ensuring the quality of the project.

[0004] The stable production of traditional machine-made aggregates mainly relies on the stable source of parent rock, large investment in production equipment, and frequent laboratory testing.

[0005] However, the testing procedures in the laboratory are complicated and time-consuming, and the test results lag seriously behind actual production, which cannot avoid the occurrence of unqualified machine-made products.

[0006] Therefore, how to achieve real-time monitoring of key quality parameters such as the chemical composition and harmful substance content of machine-made aggregates on the production line, and then provide timely and effective criteria for the quality evaluation of machine-made aggregates is an urgent problem that technical personnel in this field need to solve. Summary of the invention

[0007] In view of this, the present invention provides an online monitoring system and method for the chemical composition of machine-made aggregates, which realizes real-time monitoring of key quality parameters such as the chemical composition and harmful substance content of the machine-made aggregates on the production line, thereby providing timely and effective criteria for the quality evaluation of machine-made aggregates.

[0008] In order to achieve the above object, the present invention adopts the following technical solution:

[0009] An online monitoring system for the chemical composition of machine-made aggregates is arranged above the finished machine-made aggregate transportation line for online monitoring, and includes: an automatic identification module, a sampling module, a pretreatment module, a temperature and humidity control module, a component detection module and a data processing module;

[0010] The automatic identification module is used to identify whether the machine-made aggregate finished product transportation line produces machine-made aggregate;

[0011] The sampling module is used to obtain a sample of the machine-made aggregate after the machine-made aggregate is produced and transport the sample to the pre-processing module;

[0012] The pre-processing module is used to receive the sample for pre-processing, and to transport the pre-processed sample to the detection area of ​​the component detection module, and to transport the pre-processed sample back to the machine-made aggregate finished product transportation line after detection;

[0013] The temperature and humidity control module is used to adjust the temperature and humidity of the detection area to a preset range;

[0014] The component detection module is used to detect the pre-treated sample and transmit the detection result to the data processing module;

[0015] The data processing module is used to process and analyze the detection results to obtain analysis results, and send an alarm prompt when the analysis results are abnormal.

[0016] Preferably, the automatic identification module comprises: a judgment unit, a laser sensor and an image sensor;

[0017] The judgment unit is connected to the laser sensor and the image sensor respectively;

[0018] The laser sensor is used to detect the thickness change on the conveying line of the finished machine-made aggregate;

[0019] The image sensor is used to detect the grayscale change of the image on the transportation line of the finished machine-made aggregate product;

[0020] The judgment unit is used to make a judgment based on the thickness change and the image grayscale change. When the thickness change meets a first threshold and the image grayscale change meets a second threshold, it is judged that the machined aggregate is produced, otherwise it is judged that it is not produced.

[0021] Preferably, the sampling module comprises: a transmission device and a chute;

[0022] The transmission device is used to control the chute to hover above the finished machine-made aggregate transportation line after the machine-made aggregate is produced, and to control the chute to transport the sample to the pre-processing module after the chute obtains the sample;

[0023] The chute is used to obtain samples of the machine-made aggregate on the machine-made aggregate finished product transportation line.

[0024] Preferably, the pre-processing module comprises: a sample box, a compacting device and a lifting device;

[0025] The sample box is used to receive the sample delivered by the sampling module;

[0026] The compacting device is used to flatten and compact the sample in the sample box;

[0027] The lifting device is used to adjust the sample box to the detection area of ​​the component detection module after the sample is pretreated, and is used to transport the pretreated sample back to the machine-made aggregate finished product transportation line after the detection is completed.

[0028] Preferably, the temperature and humidity control module comprises: a temperature sensor, a humidity sensor, a temperature regulating device and a humidity regulating device;

[0029] The temperature sensor is used to detect the temperature of the detection area;

[0030] The humidity sensor is used to detect the humidity of the detection area;

[0031] The temperature regulating device is used to regulate the temperature of the detection area according to the temperature detected by the temperature sensor;

[0032] The humidity adjustment device is used to adjust the humidity of the detection area according to the humidity detected by the humidity sensor.

[0033] Preferably, the component detection module includes: any one or more devices selected from the group consisting of an image analyzer, a mass spectrometer, a spectrum analyzer, and an X-ray diffraction analyzer.

[0034] Preferably, the data processing module includes: an analysis unit, a determination unit, an early warning unit and a storage unit;

[0035] The analysis unit is used to process and analyze the received detection result to obtain an analysis result;

[0036] The determination unit is used to determine whether the analysis result meets a preset threshold, and send warning information to the warning unit if it does not meet the threshold;

[0037] The warning unit is used to receive the warning information and issue a corresponding alarm prompt;

[0038] The storage unit is used to store the analysis result and the warning information.

[0039] Preferably, it also includes: a display module;

[0040] The display module is used to display the analysis results in real time in the form of charts or tables, and supports the export and remote transmission of the analysis results.

[0041] Preferably, it also includes: a box and a bracket;

[0042] The bracket is arranged at the bottom of the box body, and is used to support the box body, and the height of the bracket is adjustable;

[0043] The automatic identification module, the sampling module, the pre-processing module, the temperature and humidity control module, the component detection module and the data processing module are all arranged in the box;

[0044] The bottom of the box is provided with corresponding openings for the automatic identification module to perform monitoring and the sampling module to perform sampling operations.

[0045] An online monitoring method for chemical composition of machine-made aggregates, comprising:

[0046] Identify whether the manufactured aggregates are produced on the manufactured aggregates finished product transportation line;

[0047] After determining that the machine-made aggregate is produced, obtaining a sample of the machine-made aggregate;

[0048] Based on the sample, pre-processing is performed and the pre-processed sample is transported to the detection area,

[0049] Adjusting the temperature and humidity of the detection area to a preset range;

[0050] Performing detection based on the pretreated sample to obtain a detection result;

[0051] The pre-treated sample after testing is transported back to the machine-made aggregate finished product transportation line;

[0052] Processing and analysis are performed based on the detection results to obtain analysis results, and an alarm prompt is sent when the analysis results are abnormal.

[0053] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses an online monitoring system and method for the chemical composition of machine-made aggregates, which realizes real-time monitoring of key quality parameters such as the chemical composition and harmful substance content of machine-made aggregates on the production line, thereby providing timely and effective criteria for the quality evaluation of machine-made aggregates. It has the following beneficial effects:

[0054] 1. High efficiency: After taking out representative samples, the present invention can accurately and real-time characterize the chemical composition of the machine-made aggregate through multi-site testing. The entire testing process is completed within 20 minutes, which is much higher than the testing speed in the laboratory.

[0055] 2. Intelligence: The present invention is fixedly mounted above the finished aggregate transportation line. After the online monitoring system is turned on, it automatically identifies, samples, tests, and alarms. After the test is completed, the sample is automatically returned to the belt without causing pollution to the inside of the online monitoring system. The entire testing process does not require personnel on duty or additional operations, and the degree of intelligence is high.

[0056] 3. Stability: The nearly closed box structure of the present invention can resist interference from harsh working conditions such as high dust content and high vibration, thus ensuring the long-term stable operation of the online monitoring system.

[0057] 4. The present invention can timely obtain the quality of the machine-made aggregate on the production line by quickly analyzing the chemical composition of the machine-made aggregate, control the output rate of unqualified machine-made aggregate, ensure that the performance of the machine-made aggregate meets the production requirements, and thus improve the quality of the project.

[0058] 5. The present invention can quickly obtain the chemical composition parameters of machine-made aggregates, control the unqualified rate of machine-made products, and thus improve the level of intelligent production and information management of machine-made products. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0060] Figure 1 This is a schematic structural diagram of an online monitoring system for chemical composition of machine aggregates provided by the present invention.

[0061] Figure 2 This is a schematic diagram of the data processing module structure provided by the present invention.

[0062] Figure 3 The present invention provides a flow chart of an online monitoring method for the chemical composition of machine-made aggregates. DETAILED DESCRIPTION

[0063] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0064] Example 1

[0065] The embodiment of the present invention discloses an online monitoring system for the chemical composition of machine-made aggregates, which is arranged above the transportation line of machine-made aggregate products and performs online monitoring, such as Figure 1 As shown, it includes: automatic identification module, sampling module, pre-processing module, temperature and humidity control module, component detection module and data processing module;

[0066] Automatic identification module: used to identify whether the machine-made aggregate is produced on the machine-made aggregate finished product transportation line;

[0067] Sampling module: used to obtain samples of machine-made aggregate after it is produced and transport them to the pre-treatment module;

[0068] The pretreatment module is used to receive samples for pretreatment and transport the pretreated samples to the detection area of ​​the component detection module, and also to transport the pretreated samples back to the machine-made aggregate finished product transportation line after detection;

[0069] A temperature and humidity control module, used to adjust the temperature and humidity of the detection area to a preset range;

[0070] A component detection module is used to detect the pre-processed samples and transmit the detection results to the data processing module;

[0071] The data processing module is used to process and analyze the test results, obtain analysis results, and send an alarm prompt when the analysis results are abnormal.

[0072] Example 2

[0073] The embodiment of the present invention discloses an online monitoring system for the chemical composition of machine-made aggregates, which is arranged above the machine-made aggregate finished product transportation line for online monitoring, and includes: an automatic identification module, a sampling module, a pre-processing module, a temperature and humidity control module, a component detection module and a data processing module;

[0074] Automatic identification module: used to identify whether the machine-made aggregates are produced on the machine-made aggregate finished product transportation line:

[0075] Preferably, the automatic identification module comprises: a judgment unit, a laser sensor and an image sensor;

[0076] The judging unit is connected to the laser sensor and the image sensor respectively;

[0077] Laser sensors to detect thickness changes on the conveyor line for finished machined aggregates;

[0078] Image sensor, used to detect grayscale changes in images on the transportation line of finished machined aggregate products;

[0079] The judgment unit is used to make a judgment based on the thickness change and the image grayscale change. When the thickness change meets the first threshold and the image grayscale change meets the second threshold, it is judged that the machine-made aggregate is produced, otherwise it is judged that no aggregate is produced.

[0080] Preferably, in this embodiment, the first threshold is set to: ≥3 cm, and the second threshold is set to: ≥15%.

[0081] Sampling module: used to obtain samples of machine-made aggregate after it is produced and transport them to the pre-treatment module:

[0082] Preferably, the sampling module comprises: a transmission device and a chute;

[0083] A transmission device, used for controlling the chute to hover above the finished product transportation line of the machine-made aggregate after the machine-made aggregate is produced, and controlling the chute to transport the sample to the sample box of the pre-processing module after the chute obtains the sample;

[0084] Chutes are used to obtain samples of manufactured aggregate on the manufactured aggregate finished product transport line.

[0085] Preferably, the transmission device of this embodiment controls the chute to hover above the machine-made aggregate finished product transportation line for 10 seconds, and after the chute obtains the sample, controls the chute to transport the sample to the top of the sample box for flipping, and pours the sample into the sample box.

[0086] The pretreatment module is used to receive samples for pretreatment and transport the pretreated samples to the detection area of ​​the component detection module. It is also used to transport the pretreated samples back to the machined aggregate finished product transportation line after detection:

[0087] Preferably, the pre-processing module comprises: a sample box, a compacting device and a lifting device;

[0088] A sample box, used for receiving the sample delivered by the sampling module;

[0089] A compacting device, used for flattening and compacting the sample in the sample box;

[0090] The lifting device is used to adjust the sample box to the detection area of ​​the component detection module after sample pretreatment, and is used to transport the pretreated sample back to the machined aggregate finished product transportation line after the detection is completed.

[0091] Preferably, the lifting device adjusts the sample box to a suitable height so that the surface of the sample in the sample box contacts the detection port of the component detection module and is located in the detection area of ​​the component detection module, thereby ensuring that the sample can be detected by the component detection module.

[0092] Preferably, in this embodiment, the length, width and height of the sample box are 10-15 cm, 8-12 cm and 3-6 cm respectively.

[0093] Temperature and humidity control module, used to adjust the temperature and humidity of the detection area to the preset range:

[0094] Preferably, the temperature and humidity control module comprises: a temperature sensor, a humidity sensor, a temperature regulating device and a humidity regulating device;

[0095] A temperature sensor, used to detect the temperature of the detection area;

[0096] Humidity sensor, used to detect the humidity in the detection area;

[0097] A temperature regulating device, used for regulating the temperature of the detection area according to the temperature detected by the temperature sensor;

[0098] The humidity regulating device is used to regulate the humidity of the detection area according to the humidity detected by the humidity sensor.

[0099] Preferably, the temperature control range of the detection area is 10°C to 40°C, and the relative humidity control range is 30% to 100%. In this embodiment, the temperature and humidity control module adjusts the temperature of the detection area to 20°C and the relative humidity to 50%.

[0100] Preferably, the temperature regulating device of this embodiment adopts an air conditioner, and the humidity regulating device adopts a spray device.

[0101] The component detection module is used to detect the pre-processed samples and transmit the test results to the data processing module:

[0102] Preferably, the component detection module includes: any one or more devices selected from the group consisting of an image analyzer, a mass spectrometer, a spectrum analyzer, and an X-ray diffraction analyzer.

[0103] Preferably, in this embodiment, the component detection module is used to detect multiple points on the pre-treated sample and transmit the detection results to the data processing module.

[0104] The data processing module is used to process and analyze the test results, obtain analysis results, and send an alarm prompt when the analysis results are abnormal.

[0105] Preferably, Figure 2 As shown, the data processing module includes: an analysis unit, a determination unit, an early warning unit and a storage unit;

[0106] An analysis unit, used to process and analyze the received detection results to obtain analysis results;

[0107] A determination unit, used to determine whether the analysis result meets a preset threshold value, and send a warning message to the warning unit if it does not meet the threshold value;

[0108] An early warning unit is used to receive early warning information and issue corresponding alarm prompts;

[0109] The storage unit is used to store analysis results and warning information, which can be used for subsequent analysis results and abnormal information queries.

[0110] Preferably, in another embodiment, the data processing module uses a computer and built-in analysis software to achieve the above functions.

[0111] Preferably, it also includes: a display module;

[0112] The display module is used to display the analysis results in real time in the form of charts or tables, and supports the export and remote transmission of analysis results.

[0113] Preferably, it also includes: a box and a bracket;

[0114] The bracket is arranged at the bottom of the box body to support the box body, and the height of the bracket is adjustable, so that the monitoring system can be arranged on the finished aggregate conveying line at different heights.

[0115] The automatic identification module, sampling module, pre-processing module, temperature and humidity control module, component detection module and data processing module are all arranged in the box;

[0116] The bottom of the box is provided with corresponding openings for the automatic identification module to perform monitoring and the sampling module to perform sampling operations.

[0117] Preferably, the size of the box is adjusted so that the whole machine can perform online monitoring without interfering with the normal production of machine-made aggregates. In this embodiment, the volume of the box is not less than 2m 3 .

[0118] Preferably, the monitoring system of the present invention adopts a nearly closed box structure that can resist interference from harsh working conditions such as high dust content and high vibration, thereby ensuring long-term stable operation of the online monitoring system.

[0119] Example 3

[0120] like Figure 3 As shown, an online monitoring method for chemical composition of machine aggregates comprises:

[0121] Identify whether the manufactured aggregates are produced on the manufactured aggregates finished product transportation line;

[0122] After determining the output of machine-made aggregate, obtain samples of the machine-made aggregate;

[0123] Performing pretreatment based on the sample and delivering the pretreated sample to a detection area;

[0124] Adjust the temperature and humidity of the detection area to the preset range;

[0125] Performing detection based on the pretreated sample to obtain a detection result;

[0126] Transport the tested pre-treated samples back to the finished aggregate transportation line;

[0127] Processing and analysis are performed based on the detection results to obtain analysis results, and an alarm prompt is sent when the analysis results are abnormal.

[0128] Example 4

[0129] An online monitoring method for chemical composition of machine-made aggregates, comprising:

[0130] Identify whether the finished product transportation line of machine-made aggregates produces machine-made aggregates:

[0131] Preferably, the thickness variation of the finished aggregate product on the conveying line of the machine is detected;

[0132] Detect grayscale changes in images on the transportation line of finished aggregate products;

[0133] The judgment is made based on the thickness change and the image grayscale change. When the thickness change meets the first threshold and the image grayscale change meets the second threshold, it is determined that the machined aggregate has been produced, otherwise it is determined that it has not been produced.

[0134] Preferably, this embodiment uses a laser sensor to detect thickness changes, and an image sensor to detect image grayscale changes.

[0135] After determining the output of machine-made aggregate, obtain samples of the machine-made aggregate.

[0136] Based on the sample pretreatment, the pretreated sample is transported to the detection area:

[0137] Preferably, the pretreatment includes: leveling and compacting treatment.

[0138] Preferably, the surface of the sample is brought into contact with the detection port of the component detection module and is located in the detection area of ​​the component detection module, thereby ensuring that the sample can be detected by the component detection module.

[0139] Adjust the temperature and humidity of the detection area to the preset range:

[0140] Preferably, the temperature and humidity of the detection area are detected separately, and the temperature of the detection area is adjusted according to the detected temperature; and the humidity of the detection area is adjusted according to the detected humidity.

[0141] The test results are obtained based on the pre-treated samples:

[0142] Preferably, the pretreated sample is tested at multiple locations, and multiple results are obtained through multi-location testing. The average value is calculated using the test results of all locations, and the final test result is represented by the average value, so that the test result is more representative.

[0143] The pre-treated samples after testing are transported back to the finished aggregate transportation line.

[0144] Processing and analysis are performed based on the detection results to obtain analysis results, and an alarm prompt is sent when the analysis results are abnormal.

[0145] Preferably, processing and analysis are performed based on the detection results to obtain analysis results;

[0146] Determine whether the analysis result meets the preset threshold, and issue a corresponding alarm if it does not meet the threshold, and do not issue an alarm if it meets the threshold.

[0147] Preferably, the analysis results are displayed in real time in the form of charts or tables, and the analysis results can be exported and transmitted remotely.

[0148] Example 5

[0149] The present invention provides an online monitoring system and method for the chemical composition of machine-made aggregates, and the performance experiment verifies:

[0150] The online monitoring system for chemical composition of machine-made aggregates conducted 6 tests on the same sample. The test results are shown in Table 1:

[0151] Table 1 Test results

[0152]

[0153] It can be seen from the data in the table that the repeatability error (measured in SiO2 content) of the online monitoring system is 2.06%.

[0154] The formula for calculating repeatability error is:

[0155]

[0156] Where, δ represents the repeatability error (%), x i It represents the content (%) of a certain element measured by the online monitoring system for the i-th time, is the average content of a certain element (%), n is the number of tests, and σ is the standard deviation (%).

[0157] The three machine-made aggregate samples were tested using the online monitoring system for the chemical composition of machine-made aggregates and indoor instruments and equipment. The test results are shown in Table 2:

[0158] Table 2 Comparison test results

[0159]

[0160]

[0161] From the data in the table, it can be seen that the accuracy errors (measured in SiO2 content) of the online monitoring system are 1.57%, 0.82%, and 0.11% respectively, and the average value is 0.83%.

[0162] The accuracy error calculation formula is:

[0163] ε=|x a -x b |

[0164] Among them, ε represents the accuracy error (%), x a To measure the content (%) of a certain element using an online monitoring system, x b It is the content (%) of the corresponding element measured in the laboratory using one of the following instruments: image analyzer, mass spectrometer, optical spectrum analyzer, and X-ray diffraction analyzer.

[0165] It can be seen that the test repeatability error of the line monitoring system of the present invention is no more than 10%, the test accuracy error is no more than 10%, the time for a single detection is 5 to 25 minutes, and the number of maintenance-free cycle tests is no less than 200 times. The chemical composition of the machine-made aggregate can be obtained quickly and accurately, the quality of the machine-made aggregate on the production line can be obtained in time, and the output rate of unqualified machine-made aggregate can be controlled.

[0166] Through the above technical solutions, it can be known that the present invention discloses an online monitoring system and method for the chemical composition of machine-made aggregates, which realizes real-time monitoring of key quality parameters such as the chemical composition and harmful substance content of machine-made aggregates on the production line, thereby providing timely and effective criteria for the quality evaluation of machine-made aggregates. It has the following beneficial effects:

[0167] 1. High efficiency: After taking out representative samples, the present invention can accurately and real-time characterize the chemical composition of the machine-made aggregate through multi-site testing. The entire testing process is completed within 20 minutes, which is much higher than the testing speed in the laboratory.

[0168] 2. Intelligence: The present invention is fixedly mounted above the finished aggregate transportation line. After the online monitoring system is turned on, it automatically identifies, samples, tests, and alarms. After the test is completed, the sample is automatically returned to the belt without causing pollution to the inside of the online monitoring system. The entire testing process does not require personnel on duty or additional operations, and the degree of intelligence is high.

[0169] 3. Stability: The nearly closed box structure of the present invention can resist interference from harsh working conditions such as high dust content and high vibration, thus ensuring the long-term stable operation of the online monitoring system.

[0170] 4. The present invention can timely obtain the quality of the machine-made aggregate on the production line by quickly analyzing the chemical composition of the machine-made aggregate, control the output rate of unqualified machine-made aggregate, ensure that the performance of the machine-made aggregate meets the production requirements, and thus improve the quality of the project.

[0171] 5. The present invention can quickly obtain the chemical composition parameters of machine-made aggregates, control the unqualified rate of machine-made products, and thus improve the level of intelligent production and information management of machine-made products.

[0172] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0173] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An online monitoring system for the chemical composition of machine-made aggregates, which is installed above the transportation line of machine-made aggregate products for online monitoring, is characterized in that: include: Automatic identification module, sampling module, pre-processing module, temperature and humidity control module, component detection module and data processing module; The automatic identification module is used to identify whether the machine-made aggregate finished product transportation line produces machine-made aggregate; The sampling module is used to obtain a sample of the machine-made aggregate after the machine-made aggregate is produced and transport the sample to the pre-processing module; The pre-processing module is used to receive the sample for pre-processing, and to transport the pre-processed sample to the detection area of ​​the component detection module, and to transport the pre-processed sample back to the machine-made aggregate finished product transportation line after detection; The temperature and humidity control module is used to adjust the temperature and humidity of the detection area to a preset range; The component detection module is used to detect the pre-treated sample and transmit the detection result to the data processing module; The data processing module is used to process and analyze the detection results to obtain analysis results, and send an alarm prompt when the analysis results are abnormal.

2. The online monitoring system for chemical composition of machine-made aggregate according to claim 1 is characterized in that: The automatic identification module includes: a judgment unit, a laser sensor and an image sensor; The judgment unit is connected to the laser sensor and the image sensor respectively; The laser sensor is used to detect the thickness change on the conveying line of the finished machine-made aggregate; The image sensor is used to detect the grayscale change of the image on the transportation line of the finished machine-made aggregate product; The judgment unit is used to make a judgment based on the thickness change and the image grayscale change. When the thickness change meets a first threshold and the image grayscale change meets a second threshold, it is judged that the machined aggregate is produced, otherwise it is judged that it is not produced.

3. The online monitoring system for chemical composition of machine-made aggregate according to claim 1 is characterized in that: The sampling module comprises: a transmission device and a chute; The transmission device is used to control the chute to hover above the finished machine-made aggregate transportation line after the machine-made aggregate is produced, and to control the chute to transport the sample to the pre-processing module after the chute obtains the sample; The chute is used to obtain samples of the machine-made aggregate on the machine-made aggregate finished product transportation line.

4. The online monitoring system for chemical composition of machine-made aggregate according to claim 1 is characterized in that: The pre-processing module comprises: a sample box, a compacting device and a lifting device; The sample box is used to receive the sample delivered by the sampling module; The compacting device is used to flatten and compact the sample in the sample box; The lifting device is used to adjust the sample box to the detection area of ​​the component detection module after the sample is pretreated, and is used to transport the pretreated sample back to the machine-made aggregate finished product transportation line after the detection is completed.

5. The online monitoring system for chemical composition of machine-made aggregate according to claim 1 is characterized in that: The temperature and humidity control module includes: a temperature sensor, a humidity sensor, a temperature adjustment device and a humidity adjustment device; The temperature sensor is used to detect the temperature of the detection area; The humidity sensor is used to detect the humidity of the detection area; The temperature regulating device is used to regulate the temperature of the detection area according to the temperature detected by the temperature sensor; The humidity adjustment device is used to adjust the humidity of the detection area according to the humidity detected by the humidity sensor.

6. The online monitoring system for chemical composition of machine-made aggregate according to claim 1 is characterized in that: The component detection module includes: any one or more devices selected from the group consisting of an image analyzer, a mass spectrometer, a light spectrum analyzer, and an X-ray diffraction analyzer.

7. The online monitoring system for chemical composition of machine-made aggregate according to claim 1 is characterized in that: The data processing module includes: an analysis unit, a determination unit, an early warning unit and a storage unit; The analysis unit is used to process and analyze the received detection result to obtain an analysis result; The determination unit is used to determine whether the analysis result meets a preset threshold, and send warning information to the warning unit if it does not meet the threshold; The warning unit is used to receive the warning information and issue a corresponding alarm prompt; The storage unit is used to store the analysis result and the warning information.

8. The online monitoring system for chemical composition of machine-made aggregate according to claim 1 is characterized in that: Also includes: Display module; The display module is used to display the analysis results in real time in the form of charts or tables, and supports the export and remote transmission of the analysis results.

9. The online monitoring system for chemical composition of machine-made aggregate according to claim 1 is characterized in that: Also includes: Box and bracket; The bracket is arranged at the bottom of the box body, and is used to support the box body, and the height of the bracket is adjustable; The automatic identification module, the sampling module, the pre-processing module, the temperature and humidity control module, the component detection module and the data processing module are all arranged in the box; The bottom of the box is provided with corresponding openings for the automatic identification module to perform monitoring and the sampling module to perform sampling operations.

10. An online monitoring method for the chemical composition of machine-made aggregates, applied to an online monitoring system for the chemical composition of machine-made aggregates according to any one of claims 1 to 9, characterized in that: include: Identify whether the manufactured aggregates are produced on the manufactured aggregates finished product transportation line; After determining that the machine-made aggregate is produced, obtaining a sample of the machine-made aggregate; Based on the sample, pre-processing is performed and the pre-processed sample is transported to the detection area, Adjusting the temperature and humidity of the detection area to a preset range; Performing detection based on the pretreated sample to obtain a detection result; The pre-treated sample after testing is transported back to the machine-made aggregate finished product transportation line; Processing and analysis are performed based on the detection results to obtain analysis results, and an alarm prompt is sent when the analysis results are abnormal.

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