CN116148295A - Automatic XRF detection integrated device for metal-containing solid material - Google Patents

Automatic XRF detection integrated device for metal-containing solid material Download PDF

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Publication number
CN116148295A
CN116148295A CN202310416933.8A CN202310416933A CN116148295A CN 116148295 A CN116148295 A CN 116148295A CN 202310416933 A CN202310416933 A CN 202310416933A CN 116148295 A CN116148295 A CN 116148295A
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detection
sample
xrf
sampling
drying
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CN202310416933.8A
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CN116148295B (en
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李会泉
石垚
李志宏
张晨牧
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Institute of Process Engineering of CAS
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Institute of Process Engineering of CAS
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
    • G01N23/223—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
    • G01N23/2202—Preparing specimens therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
    • G01N23/2204—Specimen supports therefor; Sample conveying means therefore

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The invention relates to an automatic XRF detection integrated device for metal-containing solid materials, and belongs to the technical field of XRF detection. The invention provides an automatic XRF detection integrated device for metal-containing solid materials, which comprises the following components: conveyer belt, sampling equipment, drying equipment, system appearance press, transfer equipment, XRF detection module and control module. According to the invention, the control module controls the equipment to sequentially act, so that the processes of sampling, drying, sample preparation and XRF detection on the metal-containing solid material are automatically realized, the influence of human operation errors on the state of the detection sample is avoided, the consistency of the detection result is ensured to the maximum extent, the labor cost and the time cost are saved, and the detection efficiency and the accuracy and the reliability of the detection result are improved.

Description

Automatic XRF detection integrated device for metal-containing solid material
Technical Field
The invention relates to the technical field of XRF detection, in particular to an automatic XRF detection integrated device for metal-containing solid materials.
Background
XRF detection (X-ray fluorescence spectroscopy) is a method for determining the types and contents of trace elements in substances, and is widely used in substance component analysis, for example, in the analysis of the types and contents of elements in metal-containing solid materials in raw ores during non-ferrous metal smelting. The XRF detection technology can be used for realizing accurate detection on the types and the contents of the corresponding elements contained in the raw ore relatively quickly and effectively, thereby meeting the control requirement of the nonferrous metal smelting process.
According to the XRF test principle, after the tested sample is excited by X-ray, the sample generates laser spectrum, the energy spectrum generated by different kinds of elements with different contents is different in wavelength and energy level, and the energy spectrum photons are counted by a receiver and then converted into count values, so that the contents of the elements are known. For metal-containing solid materials, physical properties such as granularity, compactness and the like of a detection sample have great influence on the precision and accuracy of XRF detection results. Therefore, before XRF detection, serial sample preparation and pressing pretreatment operation is required to be carried out on the metal-containing solid materials, so that detection samples have the same or uniform physical properties, and a detection model algorithm corresponding to the material samples with the physical properties is built, thereby maximally reducing the influence of complex factors on detection results.
At present, the sample pressing detection of metal-containing solid material samples is mostly carried out in a laboratory, and the related material pretreatment process needs manual operation by researchers, so that the detection efficiency is poor, meanwhile, the influence of human factors on the pretreatment consistency of the sample materials is increased, and the accuracy and the reliability of detection results are influenced; in addition, the pretreatment process of the metal sample material can generate a certain amount of gas containing heavy metal particles, which can cause unrecoverable influence on the physical health of operators.
Disclosure of Invention
The invention aims to provide an automatic XRF detection integrated device for metal-containing solid materials, which can realize automatic pretreatment and XRF detection of the metal-containing solid materials, ensure the consistency of sample treatment and improve the detection efficiency.
The invention relates to an automatic XRF detection integrated device for metal-containing solid materials, which adopts the following scheme:
an automated XRF detection integrated device for metal-containing solid materials, the integrated device comprising: a conveyor belt for conveying the metalliferous solids material; the sampling device is arranged on one side of the conveying belt; the drying equipment is used for drying the metal-containing solid material and is connected with the sampling equipment; the sample preparation press is used for pressing and forming the metal-containing solid material to obtain a detection pressed sample; a transfer apparatus for transferring the metalliferous solid material and the detection presswork; the XRF detection module is used for carrying out XRF detection analysis on the detection pressed sample; the control module is in signal connection with the sampling equipment, the drying equipment, the sample preparation press, the transfer equipment and the XRF detection module, and the control module controls the sampling equipment to sample from the conveying belt and transfer the sampling equipment to the drying equipment, controls the transfer equipment to transfer the metal-containing solid material from the drying equipment to the sample preparation press and controls the transfer equipment to transfer the detection pressed sample from the sample preparation press to the XRF detection module according to time sequence.
According to the automatic XRF detection integrated device for the metal-containing solid materials, provided by the invention, each device is controlled to sequentially act through the control module, so that the automatic sampling, drying, sample preparation and XRF detection procedures for the metal-containing solid materials are realized, the influence of human operation errors on the state of a detection sample is avoided, the consistency of a detection result is ensured to the greatest extent, the labor cost and the time cost are saved, and the detection efficiency and the accuracy and the reliability of the detection result are improved; in addition, the harm to the health of operators caused by heavy metal-containing particle gas generated in the pretreatment process is avoided.
Preferably, the integrated device further comprises a screening device for screening the metalliferous solid material dried by the drying apparatus, the screening device being engaged with the drying apparatus. The metal-containing solid materials are controlled to be unified in particle size level through the screening device, so that more uniform detection pressed samples are obtained, and the consistency and accuracy of detection results are further promoted.
Further, the screen separator is provided with a vibrating motor and a screen, the vibrating motor is connected with the screen and can drive the screen to vibrate, the screen is obliquely arranged, the tail end of the screen is connected with the discarding area, the transferring equipment can transfer metal-containing solid materials passing through the screen to the sample preparation press, and the screen can transfer metal-containing solid materials which cannot pass through the screen to the discarding area.
Preferably, the transfer apparatus comprises a feed mechanism engaging the sifter and the sample preparation press, the feed mechanism being for transferring the metalliferous solid material passing through the screen to the sample preparation press.
Preferably, the sampling device and the drying device are respectively positioned at two sides of the conveying belt.
Preferably, the integrated device is further provided with a detection cartridge matching the detection press-sample shape; the detection material box is provided with a photoelectric sensor, the photoelectric sensor is used for judging the integrity of the detection pressed sample, and the photoelectric sensor is in signal connection with the control module. The detection material box is used for storing detection pressed samples, on one hand, the integrity of the detection pressed samples is judged through the photoelectric sensor, the pressed samples which do not meet the detection requirement are removed, the accuracy of the result is guaranteed, the time and other costs are saved, on the other hand, the direct contact between the XRF detection module and the detection pressed samples is avoided, the clean detection environment of the XRF detection module is guaranteed, and the detection efficiency and the accuracy of the detection result are improved.
Preferably, the transfer device comprises a manipulator having jaws for gripping the test press and the test cartridge; the clamping jaw is provided with a first clamping cavity and a second clamping cavity which are communicated, the first clamping cavity is matched with the shape of the detection pressed sample, and the second clamping cavity is matched with the shape of the detection material box.
Preferably, the XRF detection module comprises a closed box body, and a positive pressure fan and a constant temperature and humidity air conditioner are arranged in the closed box body. Realize through positive pressure fan the dustproof function of positive pressure of XRF detection module places outside dust and gets into with airtight box cooperation to adopt constant temperature and humidity air conditioner can guarantee the inside detection environment's of XRF detection module relative stability.
Preferably, the integrated device further comprises: the control module, the drying equipment, the screening device, the feeding mechanism, the sample preparation press, the transfer equipment and the XRF detection module are all arranged on the mounting bottom plate; the integrated box body is covered with the control module, the drying equipment, the screening device, the feeding mechanism, the sample preparation press, the transfer equipment and the XRF detection module, and the bottom of the integrated box body is in sealing connection with the mounting bottom plate; the integrated box body is provided with a receiving port, the receiving port is used for receiving the metal-containing solid materials collected by the sampling equipment, and the receiving port is connected with the drying equipment.
Preferably, the sampling apparatus comprises an identification device for determining the material carrying condition of the conveyor belt and a sampling device for collecting the metalliferous solids material from the conveyor belt; the identification device and the sampling device are in signal connection with the control module.
Based on the automatic XRF detection integrated device for the metal-containing solid materials, provided by the invention, the control module controls the devices to be matched with each other to sequentially perform the working procedures of sampling, drying, sample preparation, XRF detection and the like, and the transfer device is utilized to realize the material transfer among the working procedures, so that the automatic XRF detection for the metal-containing solid materials is realized, the manual operation is omitted in the detection process, the influence of human factors on the consistency of detection results is avoided, the effectiveness and reliability of the detection results are ensured, the detection efficiency is improved, and the health damage of heavy metal-containing particle gas to operators in the pretreatment process is also avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a metal-containing solid material automated XRF detection integrated device;
FIG. 2 is a schematic representation of the external appearance of an automated XRF detection integrated device for metal-containing solid materials;
fig. 3 is a schematic diagram of a clamping jaw grabbing detection pressed sample and a detection material box, wherein the left clamping jaw grabbing detection pressed sample is arranged in the detection material box, and the right clamping jaw grabbing detection material box;
FIG. 4 is a flow chart of automated XRF detection of metalliferous solid material using the integrated device of the present embodiments;
in the figure, a 1-control module, a 2-sample preparation press electronic control module, a 3-sample preparation press, a 31-sample detection press, a 4-XRF detection module, a 5-detection tray, a 51-detection material box, a 6-manipulator, a 61-clamping jaw, a 7-powder conveying belt, an 8-drying device, a 9-sampling device, a 91-material taking gripper, a 10-conveying belt, a 11-feeding mechanism, a 12-material discarding belt, a 13-screening device, a 14-material collecting opening, a 15-integrated box body, a 16-visual observation window and a 17-mounting bottom plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide an automatic XRF detection integrated device for metal-containing solid materials, which solves the problems in the prior art, realizes automatic pretreatment and detection of the metal-containing solid materials, ensures the consistency of sample treatment to the greatest extent, reduces human interference, saves labor cost and time cost, and is convenient and quick.
The invention provides an automatic XRF detection integrated device for metal-containing solid materials, which is shown in figures 1-3, and comprises the following components: a conveyor belt 10 for conveying metalliferous solids material; the sampling device 9 is positioned on one side of the conveying belt 10; the drying equipment 8 is connected with the sampling equipment 9 and is used for drying the metal-containing solid materials; a sample preparation press 3 for press-forming a metal-containing solid material to obtain a detection pressed sample 31; transfer means for transferring metalliferous solid material and detecting the pressform 31; the XRF detection module 4 is used for carrying out XRF detection analysis on the detection pressed sample 31; the control module 1 is in signal connection with the sampling device 9, the drying device 8, the sample preparation press 3, the transferring device and the XRF detection module 4, the control module 1 controls the sampling device 9 to sample from the conveying belt 10 and transfer the sampling device to the drying device 8 according to the time sequence, controls the drying device 8 to dry the metal-containing solid material according to the drying condition, controls the transferring device to transfer the metal-containing solid material from the drying device 8 to the sample preparation press 3, controls the sample preparation press 3 to press and shape the metal-containing solid material according to the sample preparation condition, controls the transferring device to transfer the detection pressed sample 31 from the sample preparation press 3 to the XRF detection module 4 and controls the XRF detection module 4 to perform XRF detection analysis on the detection pressed sample 31.
In some embodiments, the control module 1 may include a programmable controller with a built-in program, and the programmable controller controls each independent device to sequentially act according to time sequence, so as to implement automatic XRF detection on the metal-containing solid material above the conveyor belt 10, and obtain element type and content information of the metal-containing solid material.
Optionally, the control module 1 is an external power access point of the integrated device, and is also an output point of power of each independent device in the integrated device.
In some embodiments, the integrated apparatus further comprises a screen 13, the screen 13 being in signal connection with the control module 1, the drying device 8 being engaged with the transfer device via the screen 13, the screen 13 being adapted to screen the metalliferous solid material after drying by the drying device 8.
The sifter 13 may be provided with a screen and the transfer apparatus may be capable of transferring metalliferous solid material passing through the screen to the sample press 3.
Illustratively, the mesh size is 50 mesh to 200 mesh, for example, the mesh size is 100 mesh.
The sieving device 13 can be provided with a vibrating motor, and the vibrating motor drives the sieve to vibrate according to the program requirement under the control of the control module 1, so as to perform vibration sieving on the materials on the sieving device 13, and obtain the materials meeting the particle size requirement.
Optionally, the screen is inclined such that the end of the screen engages the reject zone and the screen is capable of transferring metalliferous solid material that cannot pass through the screen to the reject zone.
Illustratively, the screen 13 may be provided with a material manifold located at the bottom of the screen for engagement with the screen, which is capable of transferring large particulate material that cannot pass through the screen to the reject zone.
The reject area may be a reject belt 12, the reject belt 12 being used for temporary storage of reject.
Optionally, the waste belt 12 is horizontally arranged, the waste belt 12 may be provided with a weight sensor, and when the weight of the waste temporarily stored on the waste belt 12 reaches a predetermined value, the control module 1 controls the motor of the waste belt 12 to operate, so as to discharge the waste out of the integrated device.
In some embodiments, the transfer apparatus further comprises a fines transfer belt 7, the fines transfer belt 7 engaging the drying apparatus 8 for transferring the dried metalliferous solid material to the screen 13.
Referring to fig. 1, the powder conveyor belt 7 is inclined, the bottom is engaged with the bottom of the drying apparatus 8, and the top is engaged with the top of the sifter 13.
The top of powder transmission belt 7 can link up the material busbar board, and the material busbar board links up with the top of screening ware 13, and the material busbar board is used for collecting the metal-containing solid material after the stoving of powder transmission belt 7 transport to screening ware 13.
Optionally, the powder conveying belt 7 is controlled by a power motor controlled by the control module 1, and the control module 1 controls the power relay of the power motor to be powered on or off according to the program requirement, so as to control the powder conveying belt 7 to convey the metal-containing solid materials dried by the drying equipment 8 to the sieving device 13.
The material of the powder transmission belt 7 comprises wear resistance and Wen Jiaopi resistance, so that the use aging of the powder transmission belt is ensured; rubber baffles can be designed on two sides of the powder conveying belt 7 to prevent materials from sliding off the belt from the side edge of the belt; the powder conveying belt 7 further comprises two side brackets, a bottom bracket and a transmission roller, and the two side brackets, the bottom bracket and the transmission roller can be made of stainless steel.
The control module 1 can control the on-off of the power-on relays of the powder conveying belt 7, the waste material belt 12 and the sieving machine 13 through an internal program, so as to control the start and end of the actions of the powder conveying belt 7, the waste material belt 12 and the sieving machine 13.
In some embodiments, the transfer apparatus includes a loading mechanism 11, the loading mechanism 11 engaging the sifter 13 and the sample press 3, the loading mechanism 11 for transferring the metal-containing solid material passing through the sifter to the sample press 3.
Optionally, the feeding mechanism 11 includes a receiving device, a horizontal moving mechanism and a vertical moving mechanism, where the horizontal moving mechanism can drive the receiving device to move horizontally, and the vertical moving mechanism can drive the receiving device to move up and down.
The feeding mechanism 11 may further include a transfer mechanism, and after the vertical movement mechanism drives the receiving device to reach the designated position, the transfer mechanism of the feeding mechanism 11 transfers the metal-containing solid material in the receiving device into the feed inlet of the sample preparation press 3.
The access device may be provided with a weighing means which is in signal connection with the control module 1. The feeding mechanism 11 receives materials with set quality below the screen under the control of the control module 1.
Optionally, the receiving device of the feeding mechanism 11 is directly arranged below the screen of the sieving device 13, or a trough is arranged below the screen, and is used for collecting the metal-containing solid materials passing through the screen, and the feeding mechanism 11 is connected with the trough.
In some embodiments, the integrated device is further provided with a detection cartridge 51 matching the shape of the detection press 31; the detection magazine 51 is provided with a photoelectric sensor; the photoelectric sensor is in signal connection with the control module 1 and is used for judging the integrity of the detection pressed sample 31. The photoelectric sensor may be mounted on the detection cartridge 51 or may be mounted near the detection cartridge 51, and the mounting manner may be adjusted according to the mounting conditions of the different types of photoelectric sensors, as long as the integrity of the detection pressed sample 31 can be measured.
The photoelectric sensor of the detection cartridge 51 may be an infrared photoelectric sensor for determining the height of the detection pressed sample 31. When the detection pressed sample 31 in the detection material box 51 is locally crushed to enable the height of the pressed sample to be smaller than the required size, triggering the infrared photoelectric sensor, transferring the detection material box 51 and the detection pressed sample 31 to a discarding area through transfer equipment, pouring the detection pressed sample 31 in the detection material box 51 into the discarding area according to a specified path, and then placing the detection material box 51 to an initial position; when the height of the detection press 31 meets the required size, the transfer device transfers the detection cartridge 51 and the detection press 31 to the XRF detection module 4. The photoelectric sensor is used for judging the height of the detection pressed sample 31, and the detection pressed sample 31 with the quality which cannot meet the detection requirement is primarily removed, so that the effectiveness of detection data and the efficiency of XRF detection analysis are improved; for the detection pressed sample 31 which cannot be found by the photoelectric sensor and does not meet the detection requirement, the data processing is carried out after the subsequent detection analysis is finished, the abnormal values which obviously deviate from other material components or content results in the data are removed, and the accuracy and the reliability of the detection result can be further ensured by matching with the early-stage unqualified pressed sample removal.
The photoelectric sensor of the detection material box 51 can also be a contour sensor for judging the surface quality of the detection pressed sample 31, when the edge of the detection pressed sample 31 in the detection material box 51 is broken, the contour sensor is triggered, the integrity of the detection pressed sample 31 can not meet the detection condition, the detection material box 51 and the detection pressed sample 31 are transferred to a discarding area through a transfer device, the detection pressed sample 31 in the detection material box 51 is poured into the discarding area according to a specified path, and then the detection material box 51 is placed to an initial position; when the integrity of the detection pressed sample 31 meets the detection requirement, the transfer device transfers the detection cartridge 51 and the detection pressed sample 31 to the XRF detection module 4.
In some embodiments, the integrated device is further provided with a detection tray 5 for placing a detection cartridge 51; the detection tray 5 is designed into a to-be-detected area and a detection completion area, an empty detection material box 51 is placed in the to-be-detected area, and the detection pressed sample 31 prepared by the sample preparation press 3 is transferred into the empty detection material box 51 through a transfer device for storage and integrity judgment; the detection completion area is used for placing the detection pressed sample 31 and the detection cartridge 51 after detection is completed, so that related detection personnel can perform subsequent detection verification and other operations on the detection pressed sample 31.
Referring to fig. 3, in some embodiments, the transfer apparatus comprises a robot 6, the robot 6 having a jaw 61 for holding the test press 31 and the test cartridge 51; the holding jaw 61 has a first holding chamber and a second holding chamber which are communicated, the first holding chamber is matched with the shape of the detection press sample 31, and the second holding chamber is matched with the shape of the detection cartridge 51. In fig. 3, the left drawing shows the holding jaw 61 holding the detection pressed sample 31 through the first holding cavity, the middle drawing shows the holding jaw 61 holding the detection pressed sample 31 put into the detection cartridge 51, and the right drawing shows the holding jaw 61 holding the detection cartridge 51 through the second holding cavity.
Illustratively, when the manipulator 6 grabs the detection press sample 31 through the first clamping cavity, the clamping force of the first clamping cavity is 0N to 5N. When the clamping force is 0N, the manipulator 6 grabs the detection pressed sample 31 through the friction force between the first clamping cavity and the surface of the detection pressed sample 31.
The manipulator 6 can grasp the detection pressed sample 31 from the top of the detection pressed sample 31, the clamping force of the first clamping cavity is set to be 3N-5N, and when the detection pressed sample 31 is broken, the manipulator 6 cannot successfully grasp the detection pressed sample 31; when the test press 31 can withstand the clamping force of the first clamping chamber, the manipulator 6 successfully grips the test press 31 and transfers it into the test magazine 51. The maximum tolerance of the detection pressed sample 31 is 10N, and the detection pressed sample 31 with poor pressing quality is subjected to preliminary screening by adopting the clamping force of 3N-5N, so that the subsequent XRF detection and analysis can be facilitated to be smoothly carried out, and the detection efficiency is improved.
The manipulator 6 may be a six-degree-of-freedom manipulator, the clamping jaw 61 is a pneumatic gripper at the front end of the manipulator 6, and the detection press sample 31 and the detection material box 51 can be grabbed by editing the motion track and the motion program of the manipulator 6.
Illustratively, the XRF detection module 4 includes a closed enclosure having a positive pressure fan and a constant temperature and humidity air conditioner disposed therein.
Optionally, the XRF detection module 4 further comprises a temperature sensor for identifying the internal temperature of the XRF detection module 4 and a vibration sensor for identifying the environmental vibration conditions of the XRF detection module 4. When the internal temperature and the environmental vibration condition of the XRF detection module 4 meet the conditions, the XRF detection module 4 is considered to be in a state capable of detection and analysis, otherwise, the detection and analysis cannot be performed.
An independent programmable controller can be arranged in the XRF detection module 4, the detection analysis unit, the manipulator 6 and the control module 1 in the XRF detection module 4 are communicated through the programmable controller, and the program linkage between the detection analysis unit, the manipulator and the control module 1 is realized through a MODBUS communication protocol.
The XRF detection module 4 may be provided with a closed dust-proof detection box having an openable and closable door, the detection presswork 31 being transferred between the inside and outside of the dust-proof detection box through the door.
When the manipulator 6 carries the detection pressed sample 31 to the outer side of the dustproof detection box door, the control module 1 sends a door opening instruction to the programmable controller in the XRF detection module 4, the dustproof detection box door is opened, the manipulator 6 puts the detection pressed sample 31 into the detection analysis position in the XRF detection module 4 and exits the dustproof detection box, the dustproof detection box door is closed, and the control module 1 sends a detection instruction to the XRF detection module 4. After receiving the detection instruction, the XRF detection module 4 selects a proper detection working mode according to the instruction requirement to carry out XRF detection analysis, and submits result data to the field control screen and the cloud control end after the detection analysis is completed.
After detection analysis is completed, the door of the dustproof detection box is opened, the manipulator 6 enters the dustproof detection box under the control of the control module 1 after receiving detection analysis completion signals of the XRF detection module 4 to grab the detection pressed sample 31 after detection is completed, and exits the dustproof detection box, and the detection pressed sample 31 after detection and the detection material box 51 after detection are placed in a detection completion area of the detection tray 5.
In some embodiments, the sample press 3 further comprises a sample press electronic control module 2, and the sample press electronic control module 2 is configured to control the sample press 3 to press the metal-containing solid material into the test press 31.
Optionally, the sample preparation press electronic control module 2 integrates a power line, a signal line and a control line related to the sample preparation press 3, and the sample preparation press electronic control module 2 is provided with an independent controller and is a control electronic control module of the sample preparation press 3.
The sample preparation press electronic control module 2 can be provided with a programmable controller and an operation program for controlling the action of the sample preparation press 3, and the sample preparation press electronic control module 2 communicates with the control module 1 through a MODBUS communication protocol.
The control module 1 can be integrated with a program communicated with the electronic control module 2 of the sample preparation press, and the program adopts MODBUS communication protocol to realize the cooperation of the material compression molding step and other working procedures.
The sample preparation press 3 can comprise a photoelectric sensor, an independent hydraulic cylinder and a forming die structure, wherein the hydraulic cylinder is divided into a lower hydraulic cylinder and an upper hydraulic cylinder, and the end parts of the upper hydraulic cylinder and the lower hydraulic cylinder are fixed with the forming die; after the sample preparation press 3 receives the material of the feeding mechanism 11, a photoelectric sensor in the sample preparation press 3 is triggered, a program in the sample preparation press electric control module 2 responds to photoelectric signals, the sample pressing height and the pressing pressure of the sample preparation press are automatically determined according to the material type of the metal-containing solid material, and the sample preparation, the sample pressing and the sample discharging are automatically performed by the sample preparation press 3 in combination with the control instruction of the sample preparation press electric control equipment 2.
Optionally, the sample press 3 further includes a table cleaning device, and when the detection pressed sample 31 cannot bear the clamping force of the manipulator 6 to break, the manipulator 6 cannot successfully grasp the detection pressed sample 31, and the detection pressed sample 31 is cleaned to the discarding area by the table cleaning device.
The broken test press 31 of the sample press 3 can also be cleaned manually before the next test.
Referring to fig. 2, in some embodiments, the integrated device further includes: the mounting bottom plate 17 is used for fixedly integrating the control module 1, the drying equipment 8, the screening device 13, the feeding mechanism 11, the sample preparation press 3, the manipulator 6 and the XRF detection module 4; the integrated box 15, the bottom and the mounting plate 17 sealing connection of integrated box 15, this control module 1, drying equipment 8, screening ware 13, feed mechanism 11, system appearance press 3, manipulator 6 and XRF detection module 4 are established to integrated box 15 cover, and integrated box 15 is equipped with receiving material mouth 14, and receiving material mouth 14 is connected with drying equipment 8 for receive the metal-containing solid material that sampling equipment 9 gathered.
Alternatively, the manipulator 6 is fixed to the mounting base 17 by a connecting bolt after being fixed to its own base.
The exterior of the XRF detection module 4 may be covered with a closed enclosure, the bottom of which is secured to the mounting plate 17.
The integrated box 15 can be formed by splicing a plurality of vertical plates and a top plate, the vertical plates in the front-back direction are provided with rotary hinges which can be opened on one side, and the control module 1 is provided with a door which can be opened from the outer side, so that the overhaul is convenient.
The joint of the plurality of vertical plates and the top plate of the integrated box body 15 can be sealed by adhesive tapes, and the inner wall of the integrated box body 15 is provided with positive pressure vent holes, so that positive air pressure can be formed inside the integrated box body 15, external dust is prevented from entering, and meanwhile, the dust inside the integrated box body 15 is discharged, and the working environment of each part of the integrated device is maintained.
The front surface of the integrated box body 15 can be provided with a detection observation window 16 for observing the running process of the equipment; the detection observation window 16 is arranged on the front surface of the integrated box body 15 and is used for observing the running process of equipment and the analysis result of the material components, the detection observation window adopts an acrylic transparent plate, the internal display is directly connected with the control module 1 and the XRF detection module 4 in a signal manner, the internal display is used for displaying the analysis result of the material components or the content output by the XRF detection module 4, and the detection observation window 16 can be used for observing the analysis result of the material components or the content displayed by the internal display and the running condition of the integrated device.
The integrated tank 15 may be provided with a reject opening, which is engaged with the reject belt 12 for reject discharged by the reject belt 12.
In some embodiments, the sampling device 9 and the drying device 8 are located on either side of the conveyor belt 10.
Optionally, the sampling device 9 comprises identification means for determining the material carrying state of the conveyor belt 10 and sampling means for collecting metalliferous solid material from the conveyor belt 10; the identification device and the sampling device are both in signal connection with the control module.
The sampling device 9 can automatically identify the material carrying state of the conveyer belt 10, and the sampling device 9 can automatically collect the materials on the conveyer belt 10 and send the materials to the material receiving opening 14 of the integrated box 15 in combination with the operation condition of the device.
The recognition device can adopt a visual recognition camera and a visual recognition system, and the recognition device can judge the material carrying state of the conveyer belt 10 by recognizing the material running information passing through the recognition point position on the conveyer belt 10, for example, the recognition device photographs and processes images of the material passing through the recognition point position, and obtains the running information such as the thickness of the material, the width of the material, the continuity of material conveying and the like.
According to the thickness and width of the material, the size states of the material can be divided into a full-load state, a half-load state and an empty-load state, wherein the full-load state refers to that the height and width of the material passing through the identification point on the conveyer belt 10 reach the rated capacity, the half-load state refers to that the height and width of the material passing through the identification point on the conveyer belt 10 do not reach the rated capacity, and the empty-load state refers to that the height and width of the material passing through the identification point on the conveyer belt 10 do not reach half of the rated capacity.
The running state of the material can be divided into a continuous state and a discontinuous state according to the continuity of material conveying, wherein the continuous state refers to that the size state of the material passing through the identification point on the conveying belt 10 is kept in a full-load state or a half-load state continuously in a rated time, for example, the material is kept in a full-load state or a half-load state continuously or the material is changed from the full-load state to the half-load state; the discontinuous state refers to a change in the size state of the material passing through the identification point on the conveyor belt 10 from the original material running state to the empty state, for example, from the full-load state to the empty state or from the half-load state to the empty state within the rated time.
The identifying state can be combined with the material size state and the material running state to judge the material carrying state of the conveyer belt 10, for example, the state that the material passing through the identifying point on the conveyer belt 10 is changed from the full-load state to the half-load state is the full-load continuous state, and the state that the material passing through the identifying point on the conveyer belt 10 is changed from the half-load state to the empty state is the half-load discontinuous state; in particular, material passing through the identification point on the conveyor belt 10 is continuously kept in an empty state.
Optionally, the control module 1 combines the material carrying state of the conveyor belt 10 and the program execution progress information of each device, and controls the sampling device to perform the sampling operation when the material carrying state and the program execution progress meet the conditions.
The sampling device may include a material taking gripper 91, a gripper rotating material taking motor and a gripper up-down moving motor, where the material taking gripper 91 arrives at a material taking point above the conveyor belt 10 to collect materials under the driving of the gripper rotating material taking motor and the gripper up-down moving motor.
The pick-up fingers 91 may include a hopper for storing collected material samples; the hopper can be equipped with the screen cloth, and the screen cloth is located and gets the tongs 91 front end, installs before the hopper feed inlet, and the screen cloth is used for carrying out preliminary subdivision of sieving to the material of gathering, and for example the sieve mesh aperture of screen cloth is 15 mm, and the big granule material that the particle diameter is greater than 15 mm can't pass through the screen cloth in the material, and the particle diameter is less than or equal to 15 mm's material can get into the hopper of getting the tongs 91 through the screen cloth to the realization carries out preliminary concentration with the material sample that the particle diameter is suitable.
The material taking grip 91 may further be provided with a weight sensor for weighing a material sample in the hopper, and the sampling is terminated when the weight of the material sample in the hopper satisfies a condition, for example, when the sampling weight is greater than or equal to 200 g.
In combination with the program execution progress of the programmable controller in the control module 1, when the programmable controller program execution manipulator 6 of the control module 1 takes out the detection pressed sample 31 after detection analysis is completed from the XRF detection module 4 and transfers the detection pressed sample 31 to the detection tray 5, the sampling device 9 starts to judge the material carrying state of the conveying belt 10, and when the material thickness, the material width and the running condition (the speed of the conveying belt 10 and the material conveying continuity) meet the sampling requirements, the gripper up-and-down moving motor arranged above the sampling device 9 drives the material taking gripper 91 to move up and down to the material gripping position, the gripper rotating motor drives the material taking gripper 91 to rotate for material taking, and after material taking, the up-and-down moving motor drives the material taking gripper 91 to move up to drive the material taking gripper 91 to reach the feeding height to send the material into the material receiving opening 14 of the integrated box 15, so as to complete the sampling and sample conveying process.
In some embodiments, the drying device 8 may collect and dry the material collected by the sampling device 9 received by the receiving opening 14.
Optionally, the drying device 8 comprises a drying cylinder, a drying heating sheet, a drying cylinder rotating motor and a speed reducer, wherein the drying cylinder rotating motor drives the drying cylinder to rotate through the speed reducer, and the drying heating sheet heats and dries the materials in the drying cylinder; the control module 1 automatically determines the drying temperature, the drying time and the drying rotation speed of the drying equipment 8 according to the material type, the material weight and the material humidity of the metal-containing solid material.
The drying equipment 8 can be a rotary drum dryer, after materials enter the drying cylinder, under the control of the control module 1, the drying cylinder is driven by the drying cylinder rotating motor to rotate forward for drying, and after drying is finished, the drying cylinder is driven by the drying cylinder rotating motor to rotate reversely for discharging.
Optionally, the material enters the drying from the opening at the top of the drying device 8, and falls to the powder conveying belt 7 from the opening at the bottom of the drying device 8 after drying.
Optionally, the integrated device further comprises a crusher, which may be provided with a motor controlled by the control module 1, for crushing the dried material.
Referring to FIG. 4, the process of automated XRF detection of metal-containing solid materials using the integrated device provided by the present invention may be divided into six steps, namely, material taking, drying, sieving, pressure sampling, transport sampling and detection. The specific procedures of each procedure are as follows:
firstly, a material taking process is carried out, and a sampling device 9 collects metal-containing solid materials on a conveying belt 10 under the control of a control module 1, wherein the process comprises the steps of material identification, detection state judgment, material taking start, sampling subdivision, sampling weighing and sampling end.
After the sampling is finished, a drying step is carried out, the control module 1 controls the drying equipment 8 to dry the collected materials, and the drying process comprises the steps of drying start, drying temperature setting, drying material weight detection, drying material humidity setting, drying model setting and drying end.
Crushing the dried materials after drying, and then carrying out a material sieving and subdividing process, wherein a control module 1 controls a sieving device 13 to carry out vibration sieving on the dried materials to obtain materials meeting the particle size requirement, the process comprises sieving time setting, sieving residual material treatment and sieving subdivision end, wherein the sieving residual material treatment comprises sieving coarse material treatment and sieving fine material treatment, the sieving coarse material treatment refers to that the materials which do not meet the sieving condition are collected and transferred to a waste material belt 12 for sample reserving or discarding treatment; the sieving fine material treatment means that the materials meeting the sieving conditions are collected and transferred to the sample preparation press 3.
And then, carrying out a pressure sample preparation process on the material meeting the particle size requirement by adopting a sample preparation press 3, wherein the process comprises quantitative sampling, sample preparation size setting, sample preparation pressure setting, end surface flatness setting, press machine sample preparation and automatic sample discharge.
And then, carrying out transmission sampling by a manipulator 6, wherein the process comprises the steps of starting transmission sampling, placing a material box, judging the integrity of pressed samples and detecting and lofting, and placing the detected pressed samples 31 into the detection analysis position in the XRF detection module 4 through the detection lofting step to carry out a detection process, wherein the detection process comprises the following steps: the steps of detection start, detection environment temperature judgment, detection vibration judgment, detection algorithm model matching, detection operation and detection end are performed, and finally detection of a sample is performed through the manipulator 6, namely the detection pressed sample 31 is taken out from the XRF detection module and then is transferred to the detection tray 5 for detection sample retention.
Examples
The invention is further described in detail by combining specific examples, and the invention can be applied to the automatic detection of five metal elements of copper, lead, zinc, cadmium and arsenic in mineral aggregate carried by a conveying belt at the feeding section of a zinc concentrate roasting kiln through the following technical scheme, wherein the conveying speed of the conveying belt is 0.5 m/s, the humidity (moisture content) of mineral aggregate is 10%, and the ambient temperature is 30 ℃.
The automatic XRF detection integrated device for the metal-containing solid material provided by the invention comprises: the device comprises a control module 1, a sample preparation press electric control module 2, a sample preparation press 3, an XRF detection module 4, a detection tray 5, a manipulator 6, a powder conveying belt 7, a drying device 8, a sampling device 9, a conveying belt 10, a feeding mechanism 11, a discarding belt 12, a screening device 13, a receiving opening 14, an integrated box 15, a detection observation window 16 and a mounting bottom plate 17; the control module 1 is electrically connected with the sample preparation press electric control module 2, the sample preparation press 3, the XRF detection module 4, the manipulator 6, the powder transmission belt 7, the drying equipment 8, the sampling equipment 9, the feeding mechanism 11, the discarding belt 12 and the sieving device 13.
1. Sampling
The sampling equipment 9 comprises a recognition device and a sampling device, wherein the recognition device comprises a visual recognition camera and a visual recognition system, the sampling device comprises a material taking gripper 91, a gripper rotating material taking motor and a gripper up-down moving motor, the material taking gripper 91 comprises a hopper, a screen and a weight sensor, the screen is arranged at the front end of the material taking gripper 91, and the weight sensor is arranged on the material taking gripper 91; the sampling device 9 collects mineral aggregate on the conveyor belt 10 under the control of the control module 1, and the process comprises the steps of incoming material identification, detection state identification, material taking start, material taking subdivision, sampling weighing and sampling ending.
(1) And (5) incoming material identification:
the incoming material identification refers to status identification of the material carrying state of the conveyor belt 10 to determine whether the condition of detecting and sampling is satisfied, wherein the material conveying state can be classified into a full-load continuous state, an empty state, a full-load discontinuous state, a half-load continuous state, and a half-load discontinuous state. The full-load continuous state and the half-load continuous state can be used as judging conditions for starting sampling of materials transmitted by the conveyor belt, when the materials transmitted by the conveyor belt are in the full-load continuous state or the half-load continuous state, the identification device outputs a sampling start signal (here, 24V signal), and other materials transmitting states output sampling stop signals.
(2) And (3) detection state judgment:
the detection state determination means that after the identification device outputs the sampling start signal, the detection state identification process of the control module 1 performs identification determination on the operation state of each device of the integrated device, and mainly includes drying state determination (in-process/execution termination, where the determination is made by reading the temperature sensor signal of the drying device 8 and the rotation state of the drying motor), material sieving subdivision determination (in-process/execution termination, where the determination is made by reading the power-on state of the vibration motor in the sieving device 13), pressure sample making determination (in-process/execution termination, where the determination is made by reading the power-on state of the motor of the sample making press 3, the press mold position sensor signal, etc.), transmission sampling determination (in-process/execution termination, where the determination is made by the communication information of the manipulator 6), content detection determination (in-process/execution termination, where the determination is made by reading the working state of the XRF detection module 4). When the processes of drying state, material sieving subdivision, pressure sample preparation, transmission sampling and content detection are all in an execution termination state, the detection state identification procedure sends an executable sampling signal to the sampling device.
(3) The material taking is started:
the start of material taking means that after receiving the executable sampling signal output by the detection state identification procedure, the material taking gripper 91 is driven by the gripper rotating material taking motor and the gripper up-down moving motor to reach the material taking point above the conveyor belt 10 to prepare for material taking.
(4) Sampling and subdividing:
sampling subdivision means that after sampling starts, the material sample is primarily screened and subdivided by the material taking device through the material taking gripper 91, large-granularity particles (large-granularity materials with the granularity larger than 15 mm cannot pass through the screen, and the granularity smaller than or equal to 15 mm can enter the hopper of the material taking gripper 91 through the screen) in sampling are removed by adopting the screen with the screen aperture of 15 mm, and the material sample meeting subdivision requirements is primarily concentrated, so that the sampling state is further judged.
(5) Sampling and weighing:
the sampling weighing refers to real-time weight measurement of a material sample initially concentrated in the sampling subdivision process (the process is completed by combining a weight sensor with automatic metering software), and the sampling is stopped when the sampling weight is more than or equal to 200 and g.
(6) Ending sampling:
the end sampling means that when receiving the instruction of ending sampling, the sampling device transfers the obtained material sample to the receiving port 14, and returns to the running state when identifying the incoming material, waits for the next sampling, and transmits the information of completing the transmission of the material sample to the control module 1 as the judging basis of starting and stopping of the drying equipment 8.
2. Drying
The drying equipment 8 comprises a drying cylinder, a drying heating plate, a drying cylinder rotating motor and a speed reducer; the control module 1 automatically determines the drying temperature, the drying time and the drying rotation speed of the drying equipment 8 according to the material type, the material weight and the material humidity of the metal-containing solid material. The drying procedure comprises the steps of drying start, drying temperature setting, drying material weight detection, drying material humidity setting, drying model setting and the like.
(1) And (3) drying:
the drying start means that after the detection sampling process is finished and the automatically acquired materials enter the drying equipment 8, the drying equipment 8 starts to heat, meanwhile, the drying cylinder rotates at a constant speed according to a designated direction so that the dried materials are heated uniformly, the heating process is finished by the ceramic electric heating sheet attached to the outer side of the drying equipment 8, and the temperature is controlled by the temperature control PID module.
(2) Setting a drying temperature:
when the temperature of the drying equipment rises to the set temperature (the temperature is automatically set according to the types of materials, the humidity and the weight, and is generally between 85 ℃ and 110 ℃), the temperature rise is stopped, and when the temperature is reduced to 5 ℃ below the set temperature, the temperature rise is automatically started.
(3) And (3) detecting the weight of the dried material:
the drying equipment is designed with a weight detection sensor, and the weight detection sensor is used for detecting the weight of the drying materials in the drying cylinder, and the weight detection range of the weight detection sensor is as follows: 0 g-1200 g, the detection precision is 0.1 g, and after the sampling process is finished, a weight sensor of the drying material of the drying equipment feeds back the detected weight value of the material to the control module 1, and the control module 1 analyzes and calculates the time for drying the batch of material through a drying analysis model.
(4) And (3) setting humidity of the dried materials:
the humidity of the dried material refers to the humidity of the material corresponding to the material obtained by the sampling equipment, and the humidity of the material is generally measured before sampling without on-site measurement, for example, the moisture content of zinc concentrate ore powder entering a roasting kiln is measured to be 10%.
(5) Setting a drying model:
the setting of the drying model refers to that after the information such as the weight of the drying material, the type of the drying material, the humidity of the drying material and the like is obtained, the control module 1 automatically calculates and sets the drying heating temperature of 95 ℃ and the drying time of 12min in the material drying process according to the drying model, and the drying rotating speed is 18 r/min.
(6) And (3) drying is finished:
the end of drying means that the drying equipment 8 carries out drying operation according to the heating temperature, the drying time and the drying rotating speed set by the drying model, after the set drying time is reached, the drying equipment stops heating and simultaneously carries out drying discharging according to the backward rotation (rotating speed: generally 20 r/min) of the rotating direction of the drying operation until the weight detection value (the weight of the materials in the drying cylinder) of the drying equipment is less than or equal to 0.5 g, stops rotating, waits for the next drying operation, and at the moment, the drying process is ended, and the moisture content of the zinc ore powder (the single drying material weight x is less than or equal to 200 g) after the drying treatment is less than or equal to 5%. The dried material is transferred to a sieving device 13 by a powder conveying belt 7 under the control of a control module 1.
3. Sieving and subdividing materials
The screening device 13 comprises a vibrating motor controlled by the control module 1, a screen and a material bus plate connected with the screen; the control module 1 controls the sieving machine 13 to perform vibration sieving on the dried materials according to the weight, the type and the like of the materials to obtain the materials meeting the particle size requirements, and generally comprises sieving duration setting, starting sieving subdivision of the materials, coarse sieving treatment, fine sieving treatment, finishing sieving subdivision and the like.
(1) Setting sieving time period:
the sieving time length setting means that the control module 1 automatically sets the vibration time of the vibration motor according to the weight and the type of the sieving materials, and the vibration sieving time of the 100 g zinc concentrate particle materials is about 1.5 min.
(2) Sieving subdivision begins:
the sieving and subdividing process is that after the drying process is finished, the dried materials are transferred to the sieving and subdividing process, the sieving and subdividing process mainly comprises sieving meshes and a vibrating motor, a screen is a 100-mesh steel wire mesh (the size of the steel wire mesh is 400 mm multiplied by 600 mm), after sieving and subdividing is finished, the vibrating motor drives the screen to vibrate (the vibration frequency is 2940 HZ), the materials with the size smaller than or equal to 100 meshes enter a sieving fine trough through the screen (directly enter a measuring cup of the feeding mechanism 11, and the materials with the size larger than 100 meshes enter the fine trough through a material bus plate).
(3) And (3) sieving coarse material:
the coarse material sieving treatment refers to the collection of the sieved materials with the size larger than 100 meshes through a material bus plate, and the materials are transferred to a waste belt 12 for sample reserving or sample discarding treatment.
(4) Sieving and fine material treatment:
the process of sieving the fine materials means that the materials with the size smaller than 100 meshes are collected (directly enter a measuring cup of a feeding mechanism 11, and enter a fine trough beyond the measuring cup) and are prepared for preparing a detection pressed sample 31 for the next pressure sample preparation.
(5) And (3) finishing sieving subdivision:
the sieving and subdividing is finished when the vibration sieving time reaches a set value.
4. Pressure sample preparation
The sample preparation press 3 comprises a photoelectric sensor, an independent hydraulic cylinder and a forming die structure, wherein the hydraulic cylinder is divided into a lower hydraulic cylinder and an upper hydraulic cylinder, and the end parts of the upper hydraulic cylinder and the lower hydraulic cylinder are fixed with the forming die; after sieving subdivision is finished, the sample preparation press electric control module 2 carries out sample preparation size setting and sample preparation pressure setting according to the material types, the feeding mechanism 11 carries out quantitative sampling according to the size parameters and transfers the quantitative sampling to the sample preparation press 3, and the sample preparation press 3 carries out detection sample preparation such as pressing machine sample preparation, automatic sample discharging and the like on the sieved fine materials under the control of the sample preparation press electric control module 2.
(1) Quantitative sampling:
the quantitative sampling means that after sieving and subdivision are finished, a feeding mechanism of the press performs quantitative sampling according to size parameters, a material sample is a material with a size smaller than 100 meshes and sieved by a sieving fine material treatment process, and the process can be completed by a manipulator robot or a feeding mechanism 11 provided with a quantitative measuring cup.
(2) Sample preparation size setting:
the sample preparation press electronic control module 2 selects sample preparation size and corresponding sample preparation mould according to material types before detecting sample preparation, the diameter of the zinc concentrate sample preparation mould is 26 mm, meanwhile, according to the material types, the material pressing height is determined, the zinc concentrate sample preparation height is 20 mm, and the sample pressing height is automatically set by the sample preparation press electronic control module 2 after selecting zinc concentrate.
(3) Sample preparation pressure setting:
in the sample pressing process, the sample pressing pressure needs to be controlled in addition to the sample pressing size, namely, after the sample pressing reaches the set sample pressing size, a certain pressure value is set to keep the sample pressing size, the pressure value setting can be automatically adjusted according to the material type and a corresponding sample pressing pressure value database, and the zinc concentrate sample pressing pressure 15 and KN can be set through a pressure regulating meter of a sample pressing machine, so that the pressure keeping time is 1 min.
(4) Press machine sample:
After the electronic control module 2 of the sample preparation press automatically determines the pressure sample preparation size (the zinc concentrate sample preparation size is 26 to mm in diameter and 20mm in height) and the sample preparation pressure (the zinc concentrate sample preparation pressure is 15 to KN and the pressure is kept for 1 min) according to the material types, a hydraulic cylinder of the sample preparation press drives the sample preparation die to carry out sample compression, and the compression process is automatically carried out according to the appointed action. After the sample preparation size reaches the requirement and the pressure is maintained for a certain time (the pressure is maintained for 1 min), the sample preparation by pressing is finished.
(5) Automatically discharging samples:
the automatic sample discharging means that after the pressure sample preparation is finished, the prepared pressed sample is automatically withdrawn from the mould by the sample preparation hydraulic cylinder and the sample preparation mould, and is ready for detection.
5. Transmission sampling and content detection
The detection tray 5 is designed into a to-be-detected area and a detection completion area, an empty detection material box 51 is placed in the to-be-detected area, and the detection pressed sample 31 is transferred into the empty detection material box 51 through the manipulator 6 for storage and integrity judgment; the detection completion area is used for placing the detection pressed sample 31 and the detection cartridge 51 after detection is completed, so that related detection personnel can perform subsequent detection verification and other operations on the detection pressed sample 31. The manipulator 6 is a manipulator with six degrees of freedom, and a pneumatic clamping jaw 61 is arranged at the front end of the manipulator 6; the holding jaw 61 has a first holding chamber and a second holding chamber which are communicated, the first holding chamber is matched with the shape of the detection press sample 31, and the second holding chamber is matched with the shape of the detection cartridge 51.
The XRF detection module 4 is internally provided with an independent programmable controller, a positive pressure fan and a constant temperature and humidity air conditioner, and the programmable controller, the positive pressure fan and the constant temperature and humidity air conditioner are all arranged in a sealed dustproof detection box to form a sealed structure.
After the sample preparation press completes the preparation of the detection pressed sample 31, transmission sampling (the detection pressed sample 31 is grabbed to perform quality judgment on the detection pressed sample 31 and then is put into the detection material box 51), pressed sample integrity judgment, detection lofting, detection environment judgment, detection algorithm model (namely, the control module 1 automatically determines detection conditions according to the material types), detection operation, detection end, detection sample, detection reserved sample, transmission sampling and content detection end are performed in sequence, so that an automatic XRF analysis detection process is performed on the detection pressed sample 31.
(1) Transmission sampling:
the transmission sampling is started, namely after the automatic sample outlet of the sample preparation press is finished, the clamping jaw 61 manipulator 6 moves to the sample preparation press 3 for sampling according to a specified path, the clamping jaw 61 of the manipulator 6 can realize preliminary judgment on the quality of the detection pressed sample 31 in the sampling process, when the quality of the detection pressed sample 31 cannot meet the grabbing requirement (the detection pressed sample 31 is cylindrical pressed sample, the clamping jaw 61 grabs the detection pressed sample 31 from the top in the transmission sampling 1 process, when the clamping force of 3N-5N is applied, if the top structure of the detection pressed sample 31 is broken, the quality of the detection pressed sample 31 cannot meet the grabbing requirement), the sampling process cannot sample successfully, and the sampling action can be continuously executed to the transmission sampling 2. The test press 31 left on the press die will be cleaned by the table cleaning process of the sample press 3 before the next press. When the quality of the detection pressed sample 31 satisfies the gripping condition, the manipulator 6 grips the detection pressed sample 31 and places it in the detection magazine 51 in a prescribed path.
(2) And (3) sample pressing integrity judgment:
after the detection pressed sample 31 is put into the detection material box 51 (the design of matching with the pressed sample size, the pressed sample height is judged by the infrared photoelectric sensor), when the local part of the bottom surface of the detection pressed sample 31 is broken to enable the pressed sample height to be smaller than the required size, the infrared photoelectric sensor is triggered, the integrality of the bottom surface of the pressed sample can not meet the material storage and detection conditions of the detection material box 51, the mechanical arm 6 adopts a second clamping cavity to grab the detection material box 51, the pressed sample in the detection material box 51 is poured into the waste material belt 12 according to a specified path, and then the detection material box 51 is placed at an initial position. When the integrity of the bottom of the detection pressed sample 31 meets the detection requirement, the manipulator 6 performs detection and lofting, namely, grabs the detection material box 51 and the pressed sample, and places the detection and analysis position in the XRF detection module 4 to wait for detection.
(3) Detection starts:
when the manipulator puts the detection material box 51 and the detection material into the XRF detection module 4, the XRF detection module 4 judges the detection environment through internal software and a sensor, the temperature is mainly judged by using a temperature sensor inside the XRF detection module 4, when the temperature is 5-55 ℃, the XRF detection module 4 is in a state capable of carrying out detection and analysis work, the control module 1 determines XRF detection conditions according to the types of the detection material, and controls the XRF detection module 4 to start detection operation on the detection pressed sample 31. After the detection is finished, the manipulator 6 takes out the detection cartridge 51 containing the detection pressed sample 31 inside the XRF detection module 4 and transfers the detection cartridge 51 to the detection completion area of the detection tray 5 according to a specified path, or pours the detection pressed sample 31 in the detection cartridge 51 into the discarding belt 12, and then places the detection cartridge 51 at an initial position to wait for the next sampling detection.
When the temperature sensor detects that the temperature is not in the proper temperature range, the XRF detection module 4 is at a temperature which cannot be detected, detection cannot be performed, the state is required to wait for the ambient temperature to be changed to the proper temperature, the waiting time is generally 30 min, when the waiting time exceeds 30 min and the detection condition cannot be met, the manipulator 6 takes out the detection cartridge 51 containing the detection pressed sample 31 in the XRF detection module 4 and pours the detection pressed sample 31 in the detection cartridge 51 into the waste belt 12 according to a specified path, and then the detection cartridge 51 is placed at an initial position and waits for the next sampling detection.
(4) And (3) transmission sampling and content detection are finished:
when the robot 6 takes out the test press 31 and the test cartridge 51 inside the XRF detection module 4 and pours the test press 31 into the reject belt 12 along a specified path, the test cartridge is placed in an initial position. At this time, the manipulator 6 sends the signal to be detected to the detection state recognition procedure, meanwhile, the XRF detection module 4 sends the detected signal to the detection state recognition procedure after the sample pressing detection is completed, the XRF detection module 4 processes and uploads the analysis data to the server monitoring end of the control module 1, and at this time, the transmission sampling and content detection process is completed.
The foregoing description of the preferred embodiment of the present invention is not intended to limit the invention to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Claims (10)

1. An automated XRF detection integrated device for metalliferous solid material, the integrated device comprising:
a conveyor belt for conveying the metalliferous solids material;
the sampling device is arranged on one side of the conveying belt;
the drying equipment is used for drying the metal-containing solid material and is connected with the sampling equipment;
the sample preparation press is used for pressing and forming the metal-containing solid material to obtain a detection pressed sample;
a transfer apparatus for transferring the metalliferous solid material and the detection presswork;
the XRF detection module is used for carrying out XRF detection analysis on the detection pressed sample;
the control module is in signal connection with the sampling equipment, the drying equipment, the sample preparation press, the transfer equipment and the XRF detection module, and the control module controls the sampling equipment to sample from the conveying belt and transfer the sampling equipment to the drying equipment, controls the transfer equipment to transfer the metal-containing solid material from the drying equipment to the sample preparation press and controls the transfer equipment to transfer the detection pressed sample from the sample preparation press to the XRF detection module according to time sequence.
2. The automated XRF detection integrated device of claim 1, further comprising a sifter for sifting the metal-containing solid material after baking by the baking apparatus, the sifter engaged with the baking apparatus.
3. The automated XRF detection integrated device of metal-containing solids materials of claim 2, wherein the screen is provided with a vibrating motor and a screen, the vibrating motor is connected to the screen and is capable of driving the screen to vibrate, the screen is arranged obliquely, the screen end is engaged with the reject zone, and the transfer apparatus is capable of transferring metal-containing solids materials that pass through the screen to the sample press, and the screen is capable of transferring metal-containing solids materials that cannot pass through the screen to the reject zone.
4. The automated XRF detection integrated device of claim 3, wherein the transfer apparatus comprises a loading mechanism, the loading mechanism engaging the sifter and the sample press, the loading mechanism for transferring the metalliferous solid material passing through the sifter to the sample press.
5. The automated XRF detection integrated assembly of claim 1, wherein the sampling device and the drying device are located on opposite sides of the conveyor belt.
6. The automated XRF detection integrated device of claim 1, wherein the integrated device is further provided with a detection cartridge matching the detection press shape;
the detection material box is provided with a photoelectric sensor, the photoelectric sensor is used for judging the integrity of the detection pressed sample, and the photoelectric sensor is in signal connection with the control module.
7. The automated XRF detection integrated device of claim 6, wherein the transfer apparatus comprises a robotic arm having jaws for gripping the detection press and the detection cartridge;
the clamping jaw is provided with a first clamping cavity and a second clamping cavity which are communicated, the first clamping cavity is matched with the shape of the detection pressed sample, and the second clamping cavity is matched with the shape of the detection material box.
8. The automated XRF detection integrated device of claim 1, wherein the XRF detection module comprises a closed housing having a positive pressure fan and a constant temperature and humidity air conditioner inside.
9. The automated XRF detection integrated device of claim 4, wherein the integrated device further comprises:
the control module, the drying equipment, the screening device, the feeding mechanism, the sample preparation press, the transfer equipment and the XRF detection module are all arranged on the mounting bottom plate;
the integrated box body is covered with the control module, the drying equipment, the screening device, the feeding mechanism, the sample preparation press, the transfer equipment and the XRF detection module, and the bottom of the integrated box body is in sealing connection with the mounting bottom plate; the integrated box body is provided with a receiving port, the receiving port is used for receiving the metal-containing solid materials collected by the sampling equipment, and the receiving port is connected with the drying equipment.
10. The automated XRF detection integrated device of claim 1, wherein the sampling apparatus comprises an identification device for determining a material carrying status of the conveyor belt and a sampling device for collecting the metalliferous solids material from the conveyor belt; the identification device and the sampling device are in signal connection with the control module.
CN202310416933.8A 2023-04-19 2023-04-19 Automatic XRF detection integrated device for metal-containing solid material Active CN116148295B (en)

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