Automatic particle size screening system and particle size detection method adopting same

Abstract

The invention relates to the field of screening particle size analysis and particle size distribution detection. The automatic granularity screening system comprises a material device, a processing device, a screening device, a screening frame device and a linear module grabbing device. According to the particle size screening system, particle size grading screening of materials can be achieved, and then screening detection of the materials is achieved; and meanwhile, through cooperative use of the material device, the processing device, the screening device, the screening frame device, the linear module grabbing device and the control system, continuous and automatic screening detection of multiple materials can be achieved, screens of different specifications can be intelligently configured, automatic cleaning, automatic calibration and automatic comparison early warning can be achieved, and the granularity detection efficiency and consistency are improved.

Description

Technical Field

[0001] The invention relates to the field of screening particle size analysis and particle size distribution detection; in particular, it relates to an automatic particle size screening system and a particle size detection method using the system. Background Art

[0002] Screening and grading the raw material particles is a common process in the field of metallurgy.

[0003] Traditionally, the original material is manually sampled and sent for sampling, then directly screened manually, and finally its original particle size is measured.

[0004] However, because the original material particles are in a wet and soft state, direct screening will cause the original material to adhere to and stick to the screen, interfering with the test results. In addition, traditional manual screening has high labor intensity and low work efficiency. The stability, repeatability and reliability of screening are poor, affecting the accuracy of analysis and detection.

[0005] At the same time, some steelmaking auxiliary materials such as carbonized rice husks and acidic covering agents have extremely low water content, low density and are fragile. After entering the drying oven, the materials will be blown away by the internal air blowing system, and drying will affect the detection efficiency and data accuracy; entering the rotary reduction will easily squeeze and destroy the material state, causing distorted test results.

[0006] At the same time, the incoming samples are large in quantity and need to be shrunk after drying, so the required oven size is large, which affects the space design of the laboratory; the temperature distribution inside the large oven is uneven, especially in the area near the heating device, the temperature is obviously higher, resulting in uneven drying of the materials, affecting the detection efficiency and the accuracy of the detection data.

[0007] The existing automatic screening system uses a special screen frame with fixed particle size screening requirements, and cannot intelligently configure the screen frame for materials with different particle size screening requirements.

[0008] The existing system does not explain how to interface with the laboratory information management system.

[0009] The existing automatic screening system sends the samples after shrinkage and vibration screening to the sample disposal device, which cannot realize sample retention and re-inspection operation.

[0010] The existing screening system has not verified the effectiveness of the test, so the conventional measurement method will record invalid experimental data, affecting the actual analysis accuracy.

[0011] The existing patent 2021107539111-Fully automatic particle size determination process and system does not clearly disclose the technical content for solving the above technical problems.

[0012] Therefore, in order to improve or solve at least one of the above problems, it is necessary to optimize the design of the existing particle size screening system. Summary of the invention

[0013] The purpose of the present invention is to provide a particle size detection system capable of realizing automatic particle size classification, screening and determination of materials.

[0014] In order to achieve the above object, the technical solution adopted by the present invention is:

[0015] An automatic particle size screening system includes a material device, a processing device, a screening device, a screen frame device and a linear module grabbing device;

[0016] The material device comprises a material device for placing the material to be tested; the material device comprises a material rack for being tested; the material to be tested is placed on the material rack for being tested through a material bottle;

[0017] The processing device includes a weighing platform;

[0018] The screening device comprises a vibrating screen machine;

[0019] The screen frame device comprises a screen frame, on which a screen bottom and a plurality of screening frames of different or same mesh sizes are stored;

[0020] The linear module grabbing device is used to transfer the material to be tested or the screen frame between one or more devices including the material device, the processing device, the screening device and the screen frame device.

[0021] The processing device also includes a barcode scanner and a cover opener and closure device; the material bottle loaded with the material to be tested is first identified by the barcode scanner and then opened by the cover opener and closure device; and then the material to be tested is put into the screening device.

[0022] The processing device also includes a material receiving platform and agglomeration pretreatment device; the material to be tested enters the vibrating screen through the agglomeration pretreatment device;

[0023] The materials screened by the vibrating screen are stored on the receiving table, which is convenient for subsequent collection and storage in the corresponding material bottles;

[0024] The vibrating screen machine is connected with a dust removal device.

[0025] The material device also includes a measured material device for placing measured materials; the measured material device includes a measured material rack, and the measured materials are placed on the measured material rack through material bottles.

[0026] The processing device also includes a cleaning device for cleaning the screening frame, and the cleaning device includes an exciting roller brush cleaner and a blowing mechanism.

[0027] The particle size screening system also includes a control system; the control system is used to realize automatic control of the particle size screening system; the control system includes a detection module; the detection module is connected to the control module, and the control module is connected to the execution module.

[0028] A particle size screening method using the particle size screening system, the particle size screening method comprising the following steps:

[0029] Step 1: Determine the material to be tested and intelligently configure the screen frame according to the material information;

[0030] Step 2: Start the particle size screening system;

[0031] Step 3: Perform material screening operation through the particle size screening system;

[0032] Step 4: Collect the screened materials, return the screen frame to its original position, and record the data.

[0033] Step 5: After step 4 is completed, the corresponding material screening operation is completed. If new material screening is required,

[0034] Repeat steps 1-4 above.

[0035] After the step 4 is completed; calculate the ratio between the total material screening loss and the total amount of the screened material. When the total material screening loss does not exceed 1% of the total amount of the screened material, it indicates that the screening result is valid;

[0036] When the total amount of material screening loss exceeds 1% of the total amount of screened material, it indicates that the screening result is invalid.

[0037] In step 4, the material particle size is mainly screened by a vibrating screen in the particle size screening system; and single-stage or multi-stage screening of the material is achieved by using one or more screening frames.

[0038] Before starting step 4, the material to be tested is first identified by the detection module in the control system;

[0039] The screen frame is intelligently configured according to the inspection requirements or material information in the system; when multiple materials to be tested need to be screened, the multiple materials to be tested are respectively configured with screen frames and are put into the screening device in sequence for screening operations.

[0040] The advantages of the present invention are:

[0041] The invention discloses an automatic particle size screening system and a particle size detection method using the particle size screening system.

[0042] The automatic particle size screening system disclosed in the present invention can realize the particle size classification screening of materials, and further realize the screening and detection of materials.

[0043] At the same time, the present invention can realize continuous automatic screening and detection of multiple materials, intelligent configuration of screens of different specifications, automatic cleaning, automatic calibration, automatic comparison and early warning through the coordinated use of material devices, processing devices, screening devices, screen frame devices, linear module grabbing devices and control systems, thereby improving the efficiency and consistency of particle size detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The following is a brief description of the contents expressed in the drawings of the present invention and the symbols in the drawings:

[0045] Figure 1 It is a process schematic diagram of the particle size detection method of the present invention.

[0046] Figure 2 This is the particle size distribution diagram of Example 3 of the present invention. DETAILED DESCRIPTION

[0047] The specific implementation of the present invention will be further explained in detail below by describing the optimal embodiment with reference to the accompanying drawings.

[0048] An automatic particle size screening system comprises a material device, a processing device, a screening device, a screen frame device and a linear module grabbing device; the particle size screening system disclosed in the present invention can realize particle size classification screening of materials, and then realize material screening detection; at the same time, the present invention can realize continuous automatic screening detection of multiple materials, intelligent configuration of screens of different specifications, automatic cleaning, automatic calibration, automatic comparison and early warning through the coordinated use of the material device, the processing device, the screening device, the screen frame device, the linear module grabbing device and the control system, thereby improving the efficiency and consistency of particle size detection.

[0049] The particle size screening system disclosed in the present invention mainly includes a material device, a processing device, a screening device, a screen frame device and a linear module grabbing device; in the present invention, the material device is mainly used for storing materials; the material device includes a device that can be used to place materials to be tested or tested materials.

[0050] The processing device is mainly used for pre-processing of the dried material. Since the material will clump after drying, this device can be used to break up the material without destroying the particle size, which is convenient for subsequent screening operations.

[0051] The screening device is mainly used to screen the materials to be tested.

[0052] The screen frame device is mainly used to store and place the screening frames and screen bottoms, which is convenient for the placement of various types of screening frames and screen bottoms to facilitate subsequent grabbing operations.

[0053] The linear module grabbing device can be a three-dimensional linear module equipped with a robotic arm for use; it is convenient for the subsequent grabbing of the material bottle to be tested, and it is also convenient for the subsequent grabbing operation of the screening frame or the screen bottom.

[0054] In the present invention, the material device includes a material device for placing the material to be tested; the material device includes a material rack; the material to be tested is placed on the material rack through a material bottle; such a setting facilitates the installation and placement of the material to be tested; it also facilitates the subsequent grasping operation of the linear module grasping device, thereby realizing continuous operation; and it can be designed as an AGV that moves as a whole, thereby realizing the connection between the upper and lower processes.

[0055] In the present invention, the processing device includes a weighing platform; in the present invention, the weighing platform can measure the weight of the material bottle to be tested, the weight of the material, and the weight of the material after screening by each screening frame or screen bottom, and of course can be used for other measurements; the specific selection is made according to needs.

[0056] In the present invention, the screening device includes a vibrating screen machine; the vibrating screen machine can be used to perform corresponding screening operations on the material to be tested.

[0057] In the present invention, the screen frame device includes a screen frame, on which a screen bottom and multiple screening frames with different or same mesh sizes are stored; the screen bottom is used for collecting the final material after screening; and the screening frame mainly has the function of a screen; it is convenient for the screening operation of the material to be tested, and the screening operation of the material to be tested is realized through one or more screening frames.

[0058] The linear module grabbing device described in the present invention is used to transfer the material to be tested or the screen frame between one or more devices including the material device, the processing device, the screening device, and the screen frame device; the linear module grabbing device described in the present invention is mainly used for grabbing and transferring operations of the corresponding components.

[0059] Further, in the present invention, Processing device It also includes an information recognition device and a cover opener and closeer; the information recognition device sends a signal to the fixed code scanning module through the PLC, so that when the material reaches the specified position, it automatically triggers the code scanning to identify the material information, which is convenient for the control system to identify; avoiding information confusion when multiple materials are queued for measurement.

[0060] The information identification device may be a barcode scanner; the barcode scanner may be used to determine the information of the material to be measured, so as to facilitate identification by the control system and avoid confusion when multiple materials need to be measured.

[0061] The cap opener and closer is mainly used to open and close the cap of the material bottle containing the material to be tested; it is convenient for the subsequent pouring of the material to be tested in the material bottle and the return and sealing of the sample after the test is completed.

[0062] At the same time, in the present invention, the material bottle loaded with the material to be tested is first identified by the information identification device (barcode scanner), and then the cover is opened by the cover opener and closeer; then the material to be tested is poured into the pretreatment device to break up the material without destroying the particle size; such a setting facilitates the accurate identification of the material to be tested and facilitates the subsequent detection operations of multiple materials.

[0063] Furthermore, the processing device in the present invention also includes a material receiving table and an agglomeration pretreatment device; the material receiving table can collect the screened materials to facilitate the subsequent retention of the screened materials, and the setting of the agglomeration pretreatment device facilitates the dispersion of the agglomerated materials and their entry into the screen frame, facilitates the subsequent particle size screening operation of the materials, and ensures the authenticity of the detection data.

[0064] In the present invention, the material to be tested enters the vibrating screen through the agglomeration pretreatment device; the material screened by the vibrating screen is stored on the material receiving table; based on such a setting, the screening operation of the material is convenient, and at the same time, the retention operation of the screened material is also convenient.

[0065] Meanwhile, the vibrating screen machine described in the present invention is connected with a dust removal device; the dust removal device is an existing structure, which is mainly used to collect dust during the screening process to ensure the screening environment.

[0066] Furthermore, in the present invention, the material device also includes a measured material device for placing measured materials; the measured material device includes a measured material rack, and the measured materials are placed on the measured material rack through material bottles; the measured material device can collect and store the measured materials to facilitate subsequent re-inspection operations.

[0067] Furthermore, the processing device in the present invention also includes a cleaning device for cleaning the screening frame, and the cleaning device includes an exciting roller brush cleaner and a blowing mechanism; the setting of the cleaning device can clean the screening frame or the sieve bottom to avoid material residue in the screening frame or the sieve bottom, and avoid affecting the next use of the screening frame or the sieve bottom.

[0068] In addition, in the present invention, by setting up a cleaning device, it is possible to prevent materials from remaining on the screening frame or the screen bottom and affecting the actual detection data; the specific structure of the cleaning device can be set as needed; it can be a cleaning brush, or a blowing mechanism, or a hair dryer with a blowing tube.

[0069] Furthermore, in the present invention, the particle size screening system also includes a control system; the control system is used to realize automatic control of the particle size screening system; the control system includes a detection module; the detection module is connected to a control module, and the control module is connected to an execution module; the detection module is used for detection and identification of corresponding components or structures; it can be a displacement sensor, a pressure sensor, a barcode scanner, etc.; the control module is generally used to receive the signal sent by the detection module, and make a judgment, and then issue instructions to control the execution module to perform an action. In the present invention, the control module is generally a controller; it can be a PLC controller or a traditional industrial computer; the execution module is mainly used to execute corresponding actions. In the present invention, the execution module can be a linear module grabbing device, a display screen, an indicator light or a speaker and other structures.

[0070] The present invention can realize autonomous selection of the screening frame through the use of the control system, thereby realizing autonomous selection of the screen, autonomous screening of materials, autonomous screening of materials, automatic recording and verification of test data, and autonomous comparison of double test data, which greatly reduces the labor intensity of the user and reduces the intervention of human factors.

[0071] In the present invention, the screen is a structure provided by the screening frame.

[0072] A particle size detection method using the particle size screening system, the particle size detection method comprising the following steps:

[0073] Step 1: Determine the material to be tested and intelligently configure the screen frame according to the material information;

[0074] Step 2: Start the particle size screening system;

[0075] Step 3: Perform material screening operation through the particle size screening system;

[0076] Step 4: Collect the screened materials, return the screen frame to its original position, and record the data.

[0077] Step 5: After step 4 is completed, the corresponding material screening operation is completed. If new material screening is required,

[0078] Repeat steps 1-4 above.

[0079] The present invention can realize the screening operation of corresponding materials through the limitation of the above steps.

[0080] Furthermore, after the step 4 described in the present invention is completed; the ratio between the total amount of material screening loss and the total amount of screened material is calculated. When the total amount of material screening loss does not exceed 1% of the total amount of screened material, it indicates that the screening result is valid; when the total amount of material screening loss exceeds 1% of the total amount of screened material, it indicates that the screening result is invalid. The present invention can verify the effectiveness of the test by calculating the ratio between the total amount of material screening loss and the total amount of screened material. The present invention statistically calculates the ratio between the total amount of material screening loss and the total amount of screened material. When the ratio between the total amount of material screening loss and the total amount of screened material is greater than 1%, it indicates that the warning test is invalid.

[0081] Furthermore, in step 4 described in the present invention, the particle size screening of the material is mainly achieved through the vibrating screen in the particle size screening system; the single-stage or multi-stage screening of the material is achieved through the use of one or more screening frames; such a setting can realize the graded screening operation of the corresponding material according to the needs during actual use; at the same time, in the present invention, the screening frame can be intelligently configured for materials with different particle size screening requirements to meet the corresponding particle size screening requirements.

[0082] Furthermore, before starting step 4 in the present invention, the material to be tested is first identified by the detection module in the control system, and the screen frame is intelligently configured according to the inspection requirements or material information in the system; when multiple materials to be tested need to be screened, the multiple materials to be tested are respectively configured with screen frames and are put into the screening device in turn for screening operations.

[0083] The present invention receives the code of each batch of materials through a barcode scanner, and then obtains the material type and inspection information from the laboratory information system, so as to realize full-automatic screening and inspection of multiple batches of materials in succession.

[0084] specific:

[0085] The automatic particle size screening system disclosed in the present invention mainly comprises a material device, a processing device, a screening device, a screen frame device, a linear module grabbing device and a control system.

[0086] The control system is mainly used to realize the automated use of the particle size screening system, reduce the use of manpower, and quickly identify and avoid material confusion.

[0087] The automatic particle size screening system disclosed in the present invention specifically includes a computer, a control cabinet, a material rack to be tested, a material rack for tested materials, a code scanner, a cover opener and closeer, a weighing platform, a screen detector, an exciting roller brush cleaner, a material receiving platform, agglomeration pretreatment device, a vibrating screen, a dust removal device, a screen frame, a robotic arm, etc. The computer is equipped with an intelligent screening particle size determination system program for information transmission and issuing instructions. The control cabinet includes a power distribution and a PLC device to control each unit component. The material rack to be tested and the material rack for tested materials are of the same specification and are used to place material bottles containing materials. The code scanner is used to scan the material bottle to obtain the material code and pass it to the program. The weighing platform is used to weigh the weight. The screen detector is used to detect whether the screen is blocked and damaged. The exciting roller brush cleaner is used to clean the screen. The material receiving platform is used to collect the material after screening into the material bottle. The agglomeration pretreatment device It is used to break up the dried and easy-to-cake materials. The vibrating screen is used to place the standard screen and vibrate and screen each particle size grade. The dust removal device mainly includes a dust collector to automatically absorb the dust in the screening and detection process; the screen frame is used to place standard screening frames of different specifications, and the mechanical arm is used to circulate the material bottle and the standard screening frame in the intelligent vibration screening and particle size determination system. The material rack to be tested, the material rack that has been tested, the barcode scanner, the cover opener and closeer, the weighing platform, the screen detector, the exciting roller brush cleaning, the material receiving platform, the agglomeration pretreatment, the vibrating screen, the dust removal device, the screen frame, the mechanical arm, etc. are connected to the computer through the PLC. The system provides a complete set of particle size determination and particle size distribution analysis systems, realizes continuous automatic screening and detection of multiple materials, intelligent configuration of screens of different specifications, automatic cleaning, automatic calibration, automatic comparison and early warning, and improves the efficiency and consistency of particle size detection.

[0088] In the present invention, the computer has an interface for accessing the laboratory information system. In the online mode, according to the sample number, the test sample name and the test item are transmitted back through LI MS, and the sieve frame is matched according to the test item. If it is in the offline state, the sieve frame can be matched according to the test sample name to perform particle size detection, and the original weights of the weighing system can be recorded to automatically calculate the screening results. A cumulative diagram of the particle size distribution can be optionally drawn, and an inspection ledger can be automatically generated and the test results can be uploaded to the laboratory information system.

[0089] Material information configuration:

[0090] Configure the screen frame information: The screen hole sizes are 0.067mm, 0.1mm, 0.2mm, 0.5mm, 1mm, 2mm, 3mm, 5mm, 8mm, 10mmm, 15mm, and 20mm respectively for standard sieves. The rest can be configured with 1-4 layers of single-layer particle size or multi-size combination according to actual needs.

[0091] The vibration time is initially configured to be 60-180S, and the setting can be changed according to the material characteristics.

[0092] Dimension information of each component, including length, width, height, and dimensions of each station.

[0093] Material bottle information, material bottle size, bottle cap size.

[0094] Information on whether each workstation has load is displayed and an indicator light is sent out.

[0095] Receive the load information of the filter box workstation, and send the workstation display screen display information and indicator light information.

[0096] Self-inspection (e.g. whether each component is normal, the material, the screen frame, etc.), position calibration. Sensors are set in various parts to detect the presence of items. Self-inspection is performed before the equipment is started and during operation summary, including whether the screening frame is placed on the screen tray, whether there is a material bottle sample cover at the opening, and whether the manipulator gripper normally clamps the material bottle or screen. After the equipment is finished running, the machine automatically returns to the set origin. Three laser displacement sensors are set at the origin position to measure and locate the X, Y, and Z axes. The actual distances X1, Y1, and Z1 measured are subtracted from the original distances X0, Y0, and Z0 recorded in the system. The calculation formula is △X=X1-X0, △Y=Y1-Y0, and △Z=Z1-Z0, thereby obtaining three offsets △X, △Y, and △Z, and then the actual position is calculated based on the offset. Finally, the manipulator resets the origin based on the current position to complete the position self-calibration of the manipulator.

[0097] Control the robot to achieve displacement, mechanical arm rotation (change fixture) and (pour out materials), clamp material bottles, clamp screening frames, move material bottles, and move screening frames.

[0098] Control the barcode scanner to scan and receive the scanned information

[0099] Control the lid opener and closeer to open and close the lid.

[0100] Control the vibrating screen to perform vibrating screening according to the configuration.

[0101] Control the start and stop of the dust collector.

[0102] In the present invention, the specific usage mode is as follows:

[0103] Offline, single material, default configuration of material screen frame series, vibration time selection, and can be configured in real time. The real-time configuration shall prevail, and an alarm will be prompted when the configuration is missing.

[0104] For multiple materials, the default configuration includes the screen frame series and vibration time for each material, optional instant configuration, and alarm prompt for missing configuration.

[0105] Online: start-up, self-checking, manual or AGV loading, manual or AGV cleaning and sample retention.

[0106] Opening and closing the lid: The pressure sensor is used to detect whether there is a load on the material rack to be tested. If there is a load on the material rack to be tested, the code scanning module is triggered to scan the code and identify the sample information. Then the robot transfers the sample bottle to the cap opener and closeer for opening the lid. After the particle size detection process is completed, the sample is bottled and collected on the receiving table and then sent to the cap opener and closeer for closing the lid.

[0107] Barcode scanner: The pressure sensor on the material rack to be tested triggers the barcode scanner module fixed above the material rack to identify the sample code in the QR code / barcode, and then proceeds to the next step through the computer.

[0108] Weighing platform: Equipped with a high-precision balance. The weighing platform can hold a sieve with a diameter of 300mm. The data is stable and reliable during the weighing process. After each weighing, the weight data is automatically transmitted to the computer for recording. After the test is completed, the computer will transmit the recorded weight data to the LI MS system to complete the automatic upload of the data.

[0109] During each weighing process, pulse compressed air is automatically used to clean the platform to prevent residual material from affecting the weighing accuracy.

[0110] Data transmission: During the particle size detection process, the weight of each weighing is recorded to form a detection record ledger according to the content of the operating instructions "Original Record of Particle Size Detection", and the particle size detection results are automatically calculated. The system has the function of shielding and modifying the results of each weighing result, truly realizing automatic detection and automatic calculation of results. According to the requirements, the system automatically compares the compliance of the test results, and prompts for re-inspection if out-of-scope data is found.

[0111] Material rack: including rack for materials to be tested and rack for tested materials, used to place material bottles, including power interface and communication interface.

[0112] Including sequence number, each workstation has an indicator light (including pressure sensor), including red, green and yellow states. Red means that the workstation is waiting for material feeding inspection, yellow means that the workstation needs to be inspected and waiting for scanning code to open the cover, and green means that the workstation is idle and can be used at any time.

[0113] The red and green lights flash alternately to indicate that there are samples left at the discharge station.

[0114] If there is a material bottle at the workstation but it is not placed in place, the indicator light will not light up.

[0115] Screen frame: Each workstation has a display board, including the screen hole size and the order of the same screen frame according to the different numbers of the inspection varieties (indicated by A (iron material), M (coal), R (flux), F (auxiliary material)). The order of the screen frames is arranged from small to large according to the screen hole size. The bottom four workstations are reserved for manual configuration. It contains a pressure sensor, and the display area also contains indicator lights. Red indicates that the screen frame has been configured and is waiting to be placed in, yellow indicates that the screen frame has been placed according to the configuration, and green indicates that the workstation is idle. The red and green lights flash alternately to indicate that the screen frame has been placed but the information has not been configured.

[0116] Configured sieve frame information: the sieve hole sizes are 0.067mm, 0.1mm, 0.2mm, 0.5mm, 1mm, 2mm, 3mm, 5mm, 8mm, 10mmm, 15mm, and 20mm respectively. The rest can be configured or changed according to actual needs.

[0117] The specific embodiments are as follows:

[0118] Embodiment 1:

[0119] Offline single material inspection:

[0120] 01Start the intelligent vibration screening granularity system on the computer;

[0121] 02 Manually check whether the standard sieve aperture corresponds to the information on the screen of the sieve frame, and confirm that the standard sieve has been fully equipped;

[0122] 03Put the material bottle containing 501.23g of metallurgical lime on the material rack to be tested;

[0123] 04 Select offline single material particle size determination in the intelligent vibration screening particle size system and enter the material name "metallurgical lime";

[0124] 05 The system obtains the default configuration based on the material name, including the required 3mm aperture screen frame and 60 seconds screening time. If there is no default configuration, it prompts manual entry;

[0125] 06 The system compares whether the standard screen has been configured on the screen frame. If the standard screen is missing, it will prompt that the manual configuration is complete;

[0126] 07 Click on the intelligent vibration screening granularity system to start the test and the dust removal system will start;

[0127] 08 The robotic arm takes the material bottle from the material rack to be tested to the code scanning station;

[0128] 09 Scan the barcode with the scanner to obtain the material number;

[0129] 10 According to the inspection requirements, the robot arm takes the screening frames of corresponding mesh sizes from the screen frame to the vibrating screen machine, and arranges them from small to large in order of the screen hole size from bottom to top;

[0130] 11. The cap opener and closeer opens the material bottle cap;

[0131] 12 The robot arm moves the opened material bottle to the weighing platform and records the weighing information m01;

[0132] 13 The robotic arm moves the opened material bottle to the agglomeration pretreatment area and pours the sample into it;

[0133] 14 Agglomeration pretreatment starts, and after the treatment is completed, the sample flows into the vibrating screen;

[0134] 15 The robot arm moves the empty material bottle to the weighing platform and records the weighing information m02;

[0135] 16 The robot arm moves the empty material bottle to the receiving table;

[0136] 17 The vibrating screen vibrates for 60 seconds according to the configured time;

[0137] 18 After the screening is completed, the robot arm takes the first layer of screening frame (××mm), moves it to the weighing platform, and records the weighing information m11;

[0138] 19 The mechanical arm pours the material in the screen into the receiving table, and puts the screen frame upside down into the vibration and roller brush cleaning table;

[0139] 20 The vibration and roller brush cleaning machine clamps the screen frame and starts cleaning;

[0140] 21. Start the screen inspection. Use compressed air to blow the screen thoroughly and place the material on the screen. Then use the back-illuminated light source and the CMOS camera to obtain the screen photo. According to the relevant national standards, the screen is woven by warp and weft in a certain pattern. Theoretically, the two intersect vertically. Carefully observe the screen image. If there is damage or deformation of the screen hole, replace the screen in time.

[0141] 22 The robot arm takes out the cleaned screen frame, rotates it back to the center, moves it to the weighing platform, and records the weighing information m12;

[0142] 23 The mechanical arm moves the screen frame to the original position of the screen frame;

[0143] 24 The robot arm continues to take the second layer of screening frame (××mm), repeats steps 18-23, and records the weighing information m21 and m22;

[0144] 25 The robot arm takes the sieve bottom, repeats steps 18-22, and records the weighing information m31 and m32;

[0145] 26 The mechanical arm puts the screen bottom back to the original position of the screen frame;

[0146] 27 The robot arm goes to the material receiving platform to pick up the material bottle, moves it to the weighing platform, and records the weighing information m011;

[0147] 28 The robot arm moves the material bottle to the opening and closing cover and covers the bottle with the cap;

[0148] 29 The robotic arm moves the covered material bottle to the corresponding station in the measured area;

[0149] 30 The computer saves the original weight information and calculates the specific values ​​within each particle size range according to the requirements, such as above a certain particle size and below a certain particle size; the corresponding particle size range is selected according to the actual requirements;

[0150] 31The calculation method is as follows:

[0151] Screened material weight m0 = m01-m02;

[0152] The first layer of screening frame (××mm and above) has a weight of m1=m11-m12 and a percentage content of f1=m1 / m0×100%;

[0153] The second layer screening frame (××mm-××mm) weight m2=m21-m22, percentage content f2=m2 / m0×100%;

[0154] The weight of the material in the sieve bottom (below ××mm) is m3=m31-m32, and the percentage content is f3=100%-f1-f2;

[0155] Screening loss ms = m0-m1-m2-m3;

[0156] Total loss msz = m01-m011.

[0157] Embodiment 2:

[0158] Online continuous inspection of multiple materials;

[0159] 01Start the intelligent vibration screening granularity system on the computer;

[0160] 02 Manually check whether the standard sieve aperture corresponds to the information on the screen of the sieve frame, and confirm that the standard sieve has been fully equipped;

[0161] 03Put the material bottle containing 2010.9g sintered anthracite, 503.65g sintered fine powder and 605.26g dolomite powder on the material rack to be tested;

[0162] 04 Select online continuous measurement of multi-material particle size in the intelligent vibration screening particle size system. The system scans the QR code on the sample cover to obtain the sample information tested at stations 1#, 2#, and 3#;

[0163] 05 Based on the information of the test samples, the system selects 3 layers of sieves, 1mm, 3mm, and 8mm, for the material at station 1#, 1mm sieve for the material at station 2#, and 3mm sieve for the material at station 3#, and automatically selects the screening time for stations 1#, 2#, and 3#;

[0164] 06 The system selects the screen frame according to the detection items returned by LI MS, and then matches it on the screen frame according to the selected screen frame. If there is an unmatched screen frame, the system will alarm to prompt manual configuration of the screen frame.

[0165] 07 Click on the intelligent vibration screening granularity system to start the test and the dust removal system will start;

[0166] 08 The robotic arm takes the material bottle from the material rack to be tested to the code scanning station;

[0167] 09 Scan the barcode with the scanner to obtain the material number;

[0168] 10 According to the inspection requirements, the mechanical arm takes the ××mm and ××mm screen frames from the screen frame to the vibrating screen machine, and arranges the screen holes from small to large in order from bottom to top;

[0169] 11. The cap opener and closeer opens the material bottle cap;

[0170] 12 The robot arm moves the opened material bottle to the weighing platform and records the weighing information m01;

[0171] 13 The robotic arm moves the opened material bottle to the agglomeration pretreatment area and pours the sample into it;

[0172] 14 Agglomeration pretreatment starts, and after the treatment is completed, the sample flows into the vibrating screen;

[0173] 15 The robot arm moves the empty material bottle to the weighing platform and records the weighing information m02;

[0174] 16 The robot arm moves the empty material bottle to the receiving table;

[0175] 17 The vibrating screen vibrates for 60 seconds according to the configured time;

[0176] 18 After the screening is completed, the robot arm takes the first layer of screening frame, moves it to the weighing platform, and records the weighing information m11;

[0177] 19 The mechanical arm pours the material in the screen into the receiving table, and puts the screen frame upside down into the vibration and roller brush cleaning table 34;

[0178] 20 The vibration and roller brush cleaning machine clamps the screen frame and starts cleaning;

[0179] 21. Start the screen inspection. Use compressed air to blow the screen thoroughly, and place the material on the screen. Then use the back-illuminated light source and the CMOS camera to obtain the screen photo. According to the relevant national standards, the screen is woven by warp and weft in a certain pattern. Theoretically, the two intersect vertically. Carefully observe the screen image. If there is damage or deformation of the screen hole, replace the screen in time.

[0180] 22 The robot arm takes out the cleaned screen frame, rotates it back to the center, moves it to the weighing platform, and records the weighing information m12;

[0181] 23 The mechanical arm moves the screen frame to the original position of the screen frame;

[0182] 24 The robot arm continues to take the second layer of screening frame, repeats steps 18-23, and records the weighing information m21 and m22;

[0183] 25 The robot arm takes the sieve bottom, repeats steps 18-22, and records the weighing information m31 and m32;

[0184] 26 The mechanical arm puts the sieve bottom back into the vibrating screen machine;

[0185] 27 The robot arm goes to the material receiving platform to pick up the material bottle, moves it to the weighing platform, and records the weighing information m011;

[0186] 28 The robot arm moves the material bottle to the opening and closing cover and covers the bottle with the cap;

[0187] 29 The robotic arm moves the covered material bottle to the corresponding station in the measured area;

[0188] 30 The computer saves the original weight information and calculates it according to the requirements, above ××mm and below ××mm;

[0189] 31The calculation method is as follows;

[0190] Screened material weight m0 = m01-m02;

[0191] The first layer of screening frame (××mm and above) has a weight of m1=m11-m12 and a percentage content of f1=m1 / m0×100%;

[0192] The second layer screening frame (××mm-××mm) weight m2=m21-m22, percentage content f2=m2 / m0×100%;

[0193] The weight of the material in the sieve bottom (below ××mm) is m3=m31-m32, and the percentage content is f3=100%-f1-f2;

[0194] Screening loss ms = m0-m1-m2-m3;

[0195] The total loss msz = m01-m011.

[0196] Embodiment 3:

[0197] Start the system, select the particle size distribution analysis module in the mode, and configure it according to the following information. The system execution process is the same as Example 1;

[0198] Single material particle size distribution analysis and particle size distribution curve drawing;

[0199] Such as coking coal detection <0.5mm, 0.5-1.0mm, 1.0-3.0mm, 3.0-5.0mm,

[0200] >5.0mm particle size, and draw a particle size distribution diagram;

[0201] According to the process of Example 1, the following test results are obtained:

[0202]

[0203] The test results are shown in the form of particle size distribution and cumulative distribution as shown in the attached figure. Figure 2 .

[0204] Similarly, the ××mm in the above text is a specific parameter, such as 0.5mm, 0.5-1mm, 1-3mm, 3-5mm, etc. in the above text; the specific parameters are selected according to the actual screening requirements.

[0205] Embodiment 4:

[0206] Screening endpoint validation;

[0207] 01Start the intelligent vibration screening granularity system on the computer;

[0208] 02 Manually check whether the standard sieve aperture corresponds to the information on the screen of the sieve frame, and confirm that the standard sieve has been fully equipped;

[0209] 03Put the material bottle containing 501.25g limestone powder on the material rack to be tested;

[0210] 04 Select offline single material particle size determination in the intelligent vibration screening particle size system and enter the material name "limestone powder";

[0211] 05 The system obtains the default configuration based on the material name "limestone powder", with a sieve frame of 3mm and a vibration time of 60s;

[0212] 06 Click on the intelligent vibration screening granularity system to start the test and the dust removal system starts;

[0213] 07 The robotic arm takes the material bottle from the material rack to be tested to the code scanning station;

[0214] 08 Scan the code with the scanner to obtain the material number;

[0215] 09 According to the inspection requirements, the robotic arm takes the 3mm screen frame and the screen bottom from the screen frame and puts them into the vibrating screen machine;

[0216] 10. The cap opener and closeer opens the material bottle cap;

[0217] 11 The robot moves the opened material bottle to the weighing platform and records the weighing information m01;

[0218] 12 The robotic arm moves the opened material bottle to the agglomeration pretreatment area and pours the sample into it;

[0219] 13 Agglomeration pretreatment starts, and after the treatment is completed, the sample flows into the vibrating screen;

[0220] 14 The robot arm moves the empty material bottle to the weighing platform and records the weighing information m02;

[0221] 15 The robot arm moves the empty material bottle to the receiving table;

[0222] 16 The vibrating screen vibrates for 60 seconds according to the configured time;

[0223] 17 After the screening is completed, the robot arm takes the 3mm sieve, moves it to the weighing platform, and records the weighing information m11;

[0224] 18 After the mechanical arm completes the weighing, it moves the screen back to the corresponding shelf of the vibrating screen machine, and the vibrating screen machine continues to vibrate for 60 seconds according to the configured time;

[0225] 19 After the screening is completed, the robot arm takes the 3mm sieve, moves it to the weighing platform, and records the weighing information m12;

[0226] 20 The computer saves the original weight information and verifies the screening end point;

[0227] 21The calculation method is as follows

[0228] Screening material weight m0 = m01-m02

[0229] The weight of the material on the first screening is m11;

[0230] The weight of the second screening material on the screen is m12;

[0231] The screening endpoint confirms the loss amount mzd=m11-m12;

[0232] When mzd / m0<1%, it is confirmed that the first screening has reached the screening end point.

[0233] In addition, it should be noted here that the ××mm in the above-mentioned multiple embodiments and texts shall be based on the calibration parameters during actual testing. This part is the parameter independently formulated by the tester, and different numbers will be formulated according to different screening intervals. Therefore, the ××mm stated above in the present invention belongs to a clear definition and concept, because this value is selected according to the working conditions during actual measurement, and can be specifically formulated according to the limitations of production needs.

[0234] In addition, the screening frame in the present invention can be described as a screen frame or a screen mesh when actually described; at the same time, the screen bottom is essentially a kind of screening frame, but it is a box structure with an opening, which mainly has the function of carrying the remaining materials after screening, and does not bear the function of screening.

[0235] The particle size screening system disclosed in the present invention receives the code of each batch of materials through a barcode scanner, and then obtains the material type and inspection information from the laboratory information system, thereby realizing full-automatic screening and inspection of multiple batches of materials in succession.

[0236] The particle size screening system disclosed in the present invention receives the code of each batch of materials through a barcode scanner, and then obtains the material type and inspection information from the laboratory information system, thereby realizing full-automatic screening and inspection of multiple batches of materials in succession.

[0237] The particle size screening system disclosed in the present invention is provided with a material collecting platform, which can collect all materials into the original material bottle again, realize sample retention, and can meet the needs of places with sample retention.

[0238] The particle size screening system disclosed in the present invention can prevent the screen from being blocked by materials through screen frame vibration + roller brush cleaning, and the screening data is more accurate.

[0239] The particle size screening system disclosed in the present invention calculates the screening loss by counting the total weight of each screening layer. When the total screening loss exceeds 1% of the total screening weight of the sample, it indicates that the early warning test is invalid.

[0240] The particle size screening system disclosed in the present invention completes the combined data recording and reporting by setting the double test detection data reporting rules. When the deviation between the first test result and the re-test result is within the tolerance range, the first test result is reported. When the deviation between the first test result and the re-test result exceeds the tolerance range, the system automatically selects the weighted average of the two similar data and reports the result after prompting to conduct the third test.

[0241] The particle size screening system disclosed in the present invention can realize random sampling and verification of the screening endpoint realization status of the current batch detection process through a separate interface.

[0242] The particle size screening system disclosed in the present invention uses a three-axis manipulator. When returning to the set origin, three laser displacement sensors measure the distance and position of the X, Y and Z axes, automatically calculate the deviation value and perform position correction, thereby realizing automatic calibration, being easy to operate and being applicable to various occasions. The three-axis manipulator can meet the test requirements in a small range, and the functional modules can be stacked in parallel in partitions, thereby reducing the site requirements and being applicable to almost all experimental sites.

[0243] Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, they are all within the protection scope of the present invention.

Claims

1. An automatic particle size screening system, characterized in that: It includes a material device, a processing device, a screening device, a screen frame device and a linear module grabbing device; The material device comprises a material device for placing the material to be tested; the material device comprises a material rack for being tested; the material to be tested is placed on the material rack for being tested through a material bottle; The processing device includes a weighing platform; The screening device comprises a vibrating screen machine; The screen frame device comprises a screen frame, on which a screen bottom and a plurality of screening frames of different or same mesh sizes are stored; The linear module grabbing device is used to transfer the material to be tested or the screen frame between one or more devices including the material device, the processing device, the screening device and the screen frame device.

2. The automatic particle size screening system according to claim 1, characterized in that: The processing device also includes a barcode scanner and a cover opener and closure device; the material bottle loaded with the material to be tested is first identified by the barcode scanner and then opened by the cover opener and closure device; and then the material to be tested is put into the screening device.

3. The automatic particle size screening system according to claim 1, characterized in that: The processing device also includes a material receiving platform and agglomeration pretreatment device; the material to be tested enters the vibrating screen through the agglomeration pretreatment device; The materials screened by the vibrating screen are stored on the receiving table; The vibrating screen machine is connected with a dust removal device.

4. The automatic particle size screening system according to claim 1, characterized in that: The material device also includes a measured material device for placing measured materials; the measured material device includes a measured material rack, and the measured materials are placed on the measured material rack through material bottles.

5. The automatic particle size screening system according to claim 1, characterized in that: The processing device also includes a cleaning device for cleaning the screening frame, and the cleaning device includes an exciting roller brush cleaner and a blowing mechanism.

6. A particle size screening system according to claims 1-5, characterized in that: The particle size screening system also includes a control system; the control system is used to realize automatic control of the particle size screening system; the control system includes a detection module; the detection module is connected to the control module, and the control module is connected to the execution module.

7. A particle size detection method using the automatic particle size screening system according to any one of claims 1 to 6, characterized in that: The particle size detection method comprises the following steps: Step 1: Determine the material to be tested and intelligently configure the screen frame according to the material information; Step 2: Start the particle size screening system; Step 3: Perform material screening operation through the particle size screening system; Step 4: Collect the screened material, return the screen frame to its original position, and record the data. Step 5: After step 4 is completed, the corresponding material screening operation is completed. If new material screening is required, repeat the above steps 1-4.

8. An automatic particle size screening method according to claim 7, characterized in that: After the step 4 is completed; calculate the ratio between the total material screening loss and the total amount of the screened material. When the total material screening loss does not exceed 1% of the total amount of the screened material, it indicates that the screening result is valid; When the total amount of material screening loss exceeds 1% of the total amount of screened material, it indicates that the screening result is invalid.

9. The automatic particle size screening method according to claim 7, characterized in that: In step 4, the particle size of the material is mainly screened by a vibrating screen in the particle size screening system; and single-stage or multi-stage screening of the material is achieved by using one or more screening frames.

10. The automatic particle size screening method according to claim 7, characterized in that: Before starting step 4, the material to be tested is first identified by the detection module in the control system, and the screen frame is intelligently configured according to the inspection requirements or material information in the system; when multiple materials to be tested need to be screened, the multiple materials to be tested are respectively configured with screen frames and are sequentially put into the screening device for screening operations.

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