An automatic sampling device for mineral products and a method thereof

Abstract

The present application relates to a kind of mineral product automatic sampling equipment and its method, including the support frame for being placed above the cabin and the length and width adjustable, the lower part of the support frame is provided with the lengthened longitudinal rail on two sides respectively, a pair of lengthened and can be moved on longitudinal rail is installed between two longitudinal rails transverse rail, the collection device for mineral product sampling is installed on the transverse rail, the collection device can be lifted and angle adjusted.The mineral product automatic sampling equipment can be loaded in the vertical direction full section static sampling of mineral of ship immediately after ship docking, shorten mineral product sampling time.

Description

Technical Field

[0001] This invention relates to an automatic sampling device and method for mineral products. Background Technology

[0002] With economic growth, my country's consumption of mineral resources such as copper and nickel has increased rapidly, making mineral imports an important means of alleviating the contradiction between resources and demand. Currently, there are two sampling methods for mineral products: mechanical sampling and manual sampling.

[0003] 1. Mechanical Sampling: Traditional mechanical sampling methods involve installing automatic sampling devices on conveyor belts during mineral unloading, performing mechanical sampling according to a pre-set program. However, due to the high density and viscosity of minerals such as copper concentrate and laterite nickel ore, especially at high moisture content, mineral adhesion and accumulation can easily occur when using automatic loading and unloading equipment like conveyor belts, leading to equipment malfunctions. Therefore, while mechanical sampling is widely used in minerals such as coal and iron ore, its application in fields like copper concentrate and laterite nickel ore has not yet been widely adopted.

[0004] 2. Manual Sampling: Sampling personnel mainly follow relevant sampling standards. Sampling methods include systematic sampling, stratified sampling, truck sampling, and bagged sampling. Taking systematic sampling as an example, after imported copper concentrate is unloaded from ships or other transport vehicles to a designated site via transshipment trucks, sampling personnel use sampling shovels to collect samples around the stockpile. Sampling a batch of imported copper concentrate with a total weight of approximately 10,000 tons takes about 30 hours. This requires staff to take turns sampling 24 hours a day. The sampling environment is harsh, with mixed traffic, posing certain safety hazards. Furthermore, because the sampling process is time-consuming and labor-intensive, there is a risk of sampling errors due to personnel fatigue.

[0005] Both mechanical and manual sampling methods, under current operating models, require waiting for all cargo in the hold to be unloaded before sampling can be completed. The sampling time is comparable to the cargo unloading time, severely restricting the customs clearance time for imported bulk minerals. Therefore, there is an urgent practical need to develop an automated sampling device that can directly perform static sampling of cargo in the ship's hold. Summary of the Invention

[0006] The purpose of this invention is to provide an automatic mineral sampling device and method, which can perform vertical full-section static sampling of minerals loaded on a ship immediately after the ship docks, thereby shortening the mineral sampling time.

[0007] The technical solution of the present invention is as follows: an automatic mineral sampling device, comprising a support frame for placement above the cabin and having adjustable length and width, wherein the lower two sides of the support frame are respectively provided with extendable longitudinal rails, and a pair of extendable transverse rails that can move on the longitudinal rails are installed between the two longitudinal rails, wherein a sampling device for mineral sampling is installed on the transverse rails, and the sampling device is capable of lifting, lowering and angle adjustment.

[0008] Furthermore, the support frame includes a bottom frame, with longitudinal supports on both sides of the bottom frame, and a transverse support connecting the upper front and rear ends of the two longitudinal supports. The longitudinal supports and the transverse supports are each composed of several foldable supports spliced ​​together.

[0009] Furthermore, the foldable bracket includes a four-joint hinge seat and two hydraulic rods. The four ends of the four-joint hinge seat are respectively hinged to one end of a connecting rod. The two ends of one hydraulic rod are respectively hinged to the other ends of two connecting rods located on one side, and the two ends of the other hydraulic rod are respectively hinged to the other ends of two connecting rods located on the other side.

[0010] Furthermore, the longitudinal track is composed of several I-shaped longitudinal short rails spliced ​​together, and the transverse track is composed of several U-shaped transverse short rails spliced ​​together. The two ends of the transverse track are slidably connected to the longitudinal track, and one end is provided with a power mechanism to drive the transverse track to move.

[0011] Furthermore, both ends of the transverse track are connected to roller assemblies that cooperate with the longitudinal track, and the two roller assemblies on the same side are connected to each other. The power mechanism includes a first motor fixed on one of the roller assemblies, and the output end of the first motor drives the roller of the roller assembly to rotate via a gear set.

[0012] Furthermore, the data collection device includes a trolley mounted on a transverse track. A support arm is hinged to one side of the trolley. A drive cylinder with a telescopic rod hinged to the trolley and connected to the support arm is also hinged to the trolley. A telescopic connecting rod driven by a lifting mechanism is slidably connected to the support arm. A data collection head is installed at the lower end of the telescopic connecting rod. Further, the lifting mechanism includes a lifting cylinder with a housing hinged to the upper part of the support arm. A slide block with sliding cooperation in lifting and lowering the support arm is hinged to the telescopic rod of the lifting cylinder. A first pulley and a second pulley are mounted on the slide block. A third pulley and a fourth pulley are correspondingly mounted on the upper and lower ends of the support arm. A first pull rope with one end passing over the second and fourth pulleys and connected to the upper part of the telescopic connecting rod is connected to the lower end of the support arm. A second pull rope with one end passing over the third and first pulleys and connected to the middle of the support arm is connected to the upper part of the telescopic connecting rod.

[0013] Furthermore, the telescopic connecting rod includes a fixed seat that is slidably connected to the support arm. An electric telescopic rod is installed on the fixed seat. Positioning protrusions are axially fixed on both sides of the upper outer shell of the electric telescopic rod. A fixed sleeve composed of two semi-circular bushings is fixed at the lower end of the support arm. A positioning groove for the positioning protrusions to cooperate is provided on the surface of the fixed sleeve where the two semi-circular bushings meet.

[0014] Furthermore, the acquisition end includes a triangular fixing plate, the three sides of which are respectively hinged to one side of a triangular clamping plate. A sleeve is rotatably connected to the fixing plate, the upper part of which is connected to a drive motor via a bevel gear pair. A screw shaft with its upper end connected to a telescopic connecting rod is screwed into the sleeve. The lower end of the screw shaft passes through the fixing plate, and a connecting plate is fixed to the lower end of the screw shaft. The inner side of the triangular clamping plate is provided with a hinge structure connected to the connecting plate.

[0015] A method for automatic sampling of mineral products, comprising an automatic mineral product sampling device, comprising the following steps:

[0016] (1) Determine the sampling plan: Before the ship carrying mineral products docks, determine the length, width, and depth of the ship's hold carrying mineral products, as well as the height of the mineral products loaded in the hold, based on the ship's stowage plan provided by the ship owner, and determine the sampling plan according to the sampling standards.

[0017] (2) According to the size of the ship's cabin, select the appropriate number of foldable brackets to assemble a support frame, assemble the appropriate length of transverse and longitudinal rails, and install the collection device; use a ship crane or dock crane to lift the automatic mineral sampling equipment onto the cargo ship;

[0018] (3) According to the sampling plan, first set the original sampling position for the automatic sampling equipment of mineral products so that the sampling device can return to the original sampling position after each sample is collected, and collect the collected samples into bags for inspection. Sampling ends after all samples are collected.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] 1. This automatic mineral sampling equipment uses marine automatic sampling equipment, which can immediately perform vertical full-section static sampling of the minerals loaded on the ship after the ship docks, significantly shortening the mineral sampling time and significantly improving customs clearance efficiency.

[0021] 2. The collection device of this automatic mineral sampling equipment can automatically and quickly collect mineral products from the cargo hold after being set according to the requirements of different sizes of cargo ships, cargo holds, number of collection points, etc.

[0022] 3. The sampling device bracket of the automatic mineral sampling equipment is welded from stainless steel. The sampling device is controlled by controlling the power-on time of the three-phase motor, which can accurately collect samples from the pre-set sampling targets, ensuring the stability of the samples, the safety of personnel, and the sampling speed, while also greatly reducing manpower. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the foldable bracket of the present invention;

[0025] Figure 3 This is a schematic diagram of the longitudinal track and roller assembly of the present invention.

[0026] Figure 4 This is a schematic diagram of the roller assembly structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the data acquisition device of the present invention;

[0028] Figure 6 This is a cross-sectional view of the data acquisition device of the present invention;

[0029] Figure 7 This is a schematic diagram of the lifting mechanism structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the slide structure of the present invention;

[0031] Figure 9 This is a schematic diagram of the fixing base structure of the present invention;

[0032] Figure 10 This is a schematic diagram of the support arm structure of the present invention;

[0033] Figure 11 For the present invention Figure 10 Enlarged view of area A;

[0034] Figure 12 This is a schematic diagram of the acquisition end (a triangular clamp is hidden) of the present invention;

[0035] Figure 13 This is a schematic diagram showing the interaction between the acquisition terminal and the drive motor of the present invention;

[0036] In the diagram: 100 - Support frame; 101 - Bottom frame; 110 - Longitudinal track; 120 - Transverse track; 130 - Longitudinal support; 140 - Transverse support; 150 - Foldable support; 151 - Four-joint hinge seat; 152 - Hydraulic rod; 153 - Hinge seat; 154 - Connecting rod; 160 - Roller assembly; 161 - First motor; 162 - Roller; 163 - U-shaped frame; 164 - Insert; 165 - Plate; 200 - Data acquisition device; 210 - Trolley; 211 - Fixing frame; 212 - Frame; 213 - Drive wheel; 214 - Second motor; 215 - Drive cylinder; 220 - Support arm; 221 - Third trolley. 222-Fourth pulley 223-Mounting plate 230-Telescopic connecting rod 231-Fixed seat 232-Electric telescopic rod 233-Positioning protrusion 234-Semi-circular bushing 235-Positioning slot 236-Roller 240-Collection end 241-Fixed plate 242-Triangular clamp 244-Sleeve 245-Bevel gear pair 246-Drive motor shaft 247-Screw shaft 248-Connecting plate 249-Hinge 250-Lifting cylinder 260-Slide seat 261-First pulley 262-Second pulley 263-Roller 270-First pull rope 280-Second pull rope. Detailed Implementation

[0037] To make the above features and advantages of the present invention more readily understood, specific embodiments are described below in conjunction with the accompanying drawings, but the present invention is not limited thereto.

[0038] refer to Figures 1 to 13

[0039] An automatic mineral sampling device includes a support frame 100 that is adjustable in length and width and can be placed above the cabin. The lower two sides of the support frame are respectively provided with extendable longitudinal rails 110. A pair of extendable transverse rails 120 that can move on the longitudinal rails are installed between the two longitudinal rails. A sampling device 200 for mineral sampling is installed on the transverse rails. The sampling device can be raised, lowered, and angled to adjust its height and angle as needed.

[0040] In this embodiment, in order to achieve the adjustment of the length and width of the support frame, the support frame includes a bottom frame 101, and longitudinal supports 130 are respectively provided on both sides of the bottom frame. A transverse support 140 is connected between the upper front and rear ends of the two longitudinal supports. The longitudinal supports and the transverse supports are respectively composed of a number of foldable supports 150 spliced ​​together.

[0041] In this embodiment, to achieve telescopic adjustment, the foldable bracket includes a four-joint hinge seat 151 and two hydraulic rods 152. Hinges 153 are fixed to both ends of each hydraulic rod. The four ends of each four-joint hinge seat are hinged to one end of a connecting rod 154. Specifically, the hinge seats at both ends of one hydraulic rod are hinged to the other ends of two connecting rods located on one side, and the hinge seats at both ends of the other hydraulic rod are hinged to the other ends of two connecting rods located on the other side. This allows for adjustment based on the width of cargo ships of different sizes, and extension / retraction can be achieved through hydraulic control.

[0042] For example, the foldable supports in the transverse support are arranged laterally (hydraulic rods are arranged laterally). Adjacent foldable supports are connected by hinge seats at the ends of the hydraulic rods, for example, by inserting rods or tubes into the hinge seats and locking them with bolts. Multiple foldable supports can be connected as needed. Thus, the length of the transverse support can be extended when the hydraulic rods extend.

[0043] The foldable brackets in the longitudinal support can be set vertically and stacked in several rows to form a series. Several rows can be installed longitudinally as needed, and the hinged seats of adjacent rows are connected by connecting plates. The length between the longitudinal sections is adjusted by the extension and retraction of hydraulic rods.

[0044] In this embodiment, to ensure that the length of the guide rails in the relevant directions can be varied, both the transverse and longitudinal rails are designed as segmented splicing structures. Specifically, the longitudinal rail is composed of several I-shaped longitudinal short rails spliced ​​together, with the ends of adjacent longitudinal short rails connected by threads or tenons. For example, the threaded connection can be that one end of the longitudinal short rail has an internal threaded hole, and the other end has a screw that mates with the internal threaded hole on the adjacent longitudinal short rail. The transverse rail is composed of several U-shaped transverse short rails spliced ​​together, with the ends of adjacent channel steel sections connected by threads or tenons. The threaded connection structure can be the same as the connection method of the longitudinal short rails. Both ends of the transverse rail are slidably connected to the longitudinal rail, and one end is provided with a power mechanism to drive the transverse rail to move longitudinally.

[0045] In this embodiment, roller assemblies 160 that cooperate with the longitudinal track are inserted at both ends of the transverse track. The two roller assemblies located on the same side are connected by a plate 165. The power mechanism includes a first motor 161 fixed on one of the roller assemblies. The output end of the first motor drives the roller 162 of the roller assembly to rotate through a gear set, thereby realizing the longitudinal movement of the transverse track by driving the roller 162 through the first motor.

[0046] In this embodiment, the roller assembly includes a U-shaped frame 163, and a pair of rollers 162 are installed on the upper part of each of the two side plates of the U-shaped frame. One side plate of the U-shaped frame has a socket 164 for inserting a transverse rail, so that the rollers can be hung on the longitudinal rail. The end of the transverse rail is inserted into the socket, thereby realizing the connection between the transverse rail and the roller assembly.

[0047] In this embodiment, the sampling device includes a trolley 210 mounted on a transverse track. A support arm 220 is hinged to one side of the trolley. A drive cylinder 215, which is hinged to a telescopic rod and the middle of the support arm, is mounted on a fixed frame 211 on one side of the trolley, so that the angle of the support arm can be adjusted by controlling the drive cylinder. A telescopic connecting rod 230, which is driven to rise and fall by a lifting mechanism, is slidably connected to the support arm. A sampling end 240 is installed at the lower end of the telescopic connecting rod, so that mineral samples can be taken through the sampling end.

[0048] In this embodiment, the trolley includes a frame 212, a drive wheel 213 that cooperates with a transverse track is provided on the lower side of the frame, and a second motor 214 that drives the drive wheel to rotate via a chain is installed on the frame.

[0049] In this embodiment, the lifting mechanism includes a lifting cylinder 250 disposed within the support arm, with its housing hinged to the upper part of the support arm. A slide block 260 is hinged to the telescopic rod of the lifting cylinder, engaging with the lifting and sliding of the support arm. Rollers 263, cooperating with the support arm, are mounted on the slide block. A first pulley 261 and a second pulley 262 are installed on the slide block. A third pulley 221 and a fourth pulley 222 are correspondingly installed at the upper and lower ends of the support arm. A first pull rope 270, with one end passing over the second and fourth pulleys and connected to the upper part of a telescopic connecting rod, is connected to the lower end of the support arm. A second pull rope 280, with one end passing over the third and first pulleys and connected to the middle of the support arm, is connected to the upper part of the telescopic connecting rod. Thus, the retraction of the lifting cylinder causes the slide block to rise, and the rising slide block, through the first and second pull ropes, causes the telescopic connecting rod to descend; similarly, the extension of the lifting cylinder causes the telescopic connecting rod to rise. The first and second pull ropes are metal cables.

[0050] In this embodiment, the telescopic connecting rod includes a fixed base 231 slidably connected to the support arm, and a roller 236 that cooperates with the support arm is provided on the fixed base. An electric telescopic rod 232 (threaded extension rod) is installed on the fixed base. Positioning protrusions 233 are axially fixed to both sides of the upper outer shell of the electric telescopic rod. A fixing sleeve composed of two semi-circular bushings 234 is fixed to the mounting plate 223 at the lower end of the support arm. A positioning groove 235 for cooperating with the positioning protrusions is provided on the mating surface of the two semi-circular bushings on the fixing sleeve. Thus, after the telescopic connecting rod descends, the positioning protrusions engage with the positioning grooves to achieve clamping, thereby facilitating the telescopic movement of the electric telescopic rod.

[0051] In this embodiment, the acquisition end includes a triangular fixing plate 241. The three sides of the fixing plate are hinged to one side of a triangular clamping plate 242 via hinges. The triangular clamping plate is an isosceles triangle. A sleeve 244 is rotatably connected to the fixing plate. The upper part of the sleeve is connected to the rotating shaft 246 of the drive motor via a bevel gear pair 245. A screw shaft 247, whose upper end is connected to the lower end of a telescopic connecting rod, is screwed into the sleeve. The lower end of the screw shaft passes through the fixing plate, and a connecting plate 248 is fixed to the lower end of the screw shaft. The inner sides of the triangular clamping plate are each provided with a hinge 249 structure connected to the connecting plate. The hinge can be a pair of connecting rings. The drive motor shaft is connected to the drive motor via a flat key. The drive motor can be mounted on a fixed plate. The drive motor drives the sleeve to rotate through a bevel gear pair. The rotation of the sleeve causes the screw shaft to move vertically up and down, thereby driving the collection end connected to the hinge to move up and down together, thus realizing the opening and closing action of the gripper, thereby realizing the grabbing and releasing of the raw materials in the cargo hold.

[0052] The data acquisition device controls the sampling position by controlling the energizing time of the first and second motors via a PLC. After each sampling, the sample is returned to its original position for centralized bagging and inspection, preventing error accumulation after each sampling along the horizontal and vertical tracks. The coordinates of the acquisition head are zeroed each time it returns to its original position. A metal cable controls the up-and-down movement of the telescopic rod, which is electrically operated to adapt to different sampling depths, and the sampling angle is adjusted by a drive cylinder.

[0053] A method for automatic sampling of mineral products, comprising an automatic mineral product sampling device, comprising the following steps:

[0054] (1) Determine the sampling plan: Before the ship carrying mineral products docks, determine the length, width, depth and other dimensions of the ship's hold carrying mineral products, as well as the specific information such as the height of the mineral products loaded in the hold, based on the ship's loading diagram provided by the ship owner, and determine the sampling plan according to the sampling standards.

[0055] Taking a cargo ship carrying 10,000 tons of copper concentrate in two holds as an example, according to GB / T 14263-2010 "Sampling and Sample Preparation Methods for Bulk Flotation Copper Concentrate", considering the "large quality fluctuation type", 94 samples should be taken for every 500 tons of ore. Assuming each 500 tons is one inspection batch (sampling unit), and 94 samples are taken from each batch, there are 20 inspection batches, requiring 1880 samples. Using the stratified sampling method, this batch of cargo is divided into two holds, each with three sampling layers, requiring 314 samples per layer. The hold containing the mineral products is 23 meters long, 18 meters wide, and 18 meters deep, with the mineral products loaded to a height of approximately 7 meters. Therefore, calculations show that 314 sampling points need to be set up in an area of ​​414 square meters. Each sampling point uses the hold cover as the "zero point", with depths of 12 meters, 15 meters, and 17 meters respectively. In accordance with GB / T 14263 standard, a total of 1880 samples were taken, with each sample weighing approximately 450g.

[0056] (2) Based on the size of the ship's hold, select the appropriate number of foldable brackets to assemble a support frame, assemble the appropriate length of transverse and longitudinal rails, and install the collection device; use a ship crane or dock crane to lift the automatic mineral sampling equipment onto the cargo ship, assuming it is at the hatch of the ship's hold.

[0057] (3) According to the sampling plan, the initial sampling position of the automatic mineral sampling equipment is first set so that the sampling device can return to the initial sampling position after each sampling, and the collected samples are bagged and inspected. At the same time, it prevents the accumulation of errors after each horizontal and vertical track sampling. The sampling personnel control the sampling device to grab the target sample at the appropriate position through the control system. The sampling personnel stand at the fixed initial position to collect the sample. The sampling ends after all samples are collected.

[0058] For some sampling tasks that are extremely sensitive to time periods, two or more sampling devices can be set up for the sampling equipment to further improve sampling efficiency.

[0059] The above description is only a preferred embodiment of the present invention. For those skilled in the art, designing different forms of automatic sampling equipment for mineral products based on the teachings of the present invention does not require creative labor. All equivalent changes, modifications, substitutions and variations made in accordance with the scope of the patent application of the present invention without departing from the principles and spirit of the present invention shall be covered by the present invention.

Claims

1. An automatic sampling device for mineral products, characterized in that, The system includes a support frame for placement above the ship's hold, with adjustable length and width. The lower sides of the support frame are each provided with extendable longitudinal rails. Between the two longitudinal rails is a pair of extendable transverse rails that can move along the longitudinal rails. A sampling device for mineral products is mounted on the transverse rails; the sampling device is adjustable in height and angle. The support frame includes a bottom frame, with longitudinal supports on both sides of the bottom frame. A transverse support connects the upper front and rear ends of the two longitudinal supports. Each of the longitudinal and transverse supports consists of several... The foldable support frame is assembled from various parts; the foldable support frame includes a four-joint hinge seat and two hydraulic rods. The four ends of the four-joint hinge seat are respectively hinged to one end of a connecting rod. The two ends of one hydraulic rod are respectively hinged to the other ends of two connecting rods located on one side, and the two ends of the other hydraulic rod are respectively hinged to the other ends of two connecting rods located on the other side. The longitudinal track is composed of several sections of I-shaped longitudinal short rails, and the transverse track is composed of several sections of U-shaped transverse short rails. The two ends of the transverse track are slidably connected to the longitudinal track, and one end is provided with a power mechanism to drive the transverse track to move.

2. The automatic mineral sampling device according to claim 1, characterized in that, Both ends of the transverse track are connected to roller assemblies that cooperate with the longitudinal track. The two roller assemblies on the same side are connected to each other. The power mechanism includes a first motor fixed on one of the roller assemblies. The output end of the first motor drives the roller of the roller assembly to rotate via a gear set.

3. An automatic mineral product sampling device according to claim 1 or 2, characterized in that, The data acquisition device includes a trolley mounted on a transverse track. A support arm is hinged to one side of the trolley. A drive cylinder with a telescopic rod hinged to the trolley and connected to the support arm is also hinged to the trolley. A telescopic connecting rod driven to rise and fall by a lifting mechanism is slidably connected to the support arm. A data acquisition end is installed at the lower end of the telescopic connecting rod.

4. The automatic mineral sampling device according to claim 3, characterized in that, The lifting mechanism includes a lifting cylinder hinged to the base and the upper part of the support arm. A slide block is hinged to the telescopic rod of the lifting cylinder, which slides and moves with the support arm. A first pulley and a second pulley are installed on the slide block. A third pulley and a fourth pulley are installed at the upper and lower ends of the support arm, respectively. A first pull rope is connected to the lower end of the support arm, with one end passing over the second pulley and the fourth pulley and connecting to the upper part of the telescopic connecting rod. A second pull rope is connected to the upper part of the telescopic connecting rod, with one end passing over the third pulley and the first pulley and connecting to the middle of the support arm.

5. An automatic mineral sampling device according to claim 3, characterized in that, The telescopic connecting rod includes a fixed seat that is slidably connected to the support arm. An electric telescopic rod is installed on the fixed seat. Positioning protrusions are axially fixed on both sides of the upper outer shell of the electric telescopic rod. A fixed sleeve composed of two semi-circular bushings is fixed at the lower end of the support arm. A positioning groove for the positioning protrusions to cooperate is provided on the surface of the fixed sleeve where the two semi-circular bushings meet.

6. The automatic mineral sampling device according to claim 3, characterized in that, The acquisition end includes a triangular fixing plate. The three sides of the fixing plate are respectively hinged to one side of a triangular clamping plate. A sleeve is rotatably connected to the fixing plate. The upper part of the sleeve is connected to the drive motor via a bevel gear pair. A screw shaft with its upper end connected to a telescopic connecting rod is screwed into the sleeve. The lower end of the screw shaft passes through the fixing plate and a connecting plate is fixed to the lower end of the screw shaft. The inner side of the triangular clamping plate is provided with a hinge structure connected to the connecting plate.

7. A method for automatic sampling of mineral products, comprising the automatic sampling device for mineral products as described in claim 1, characterized in that, The steps are as follows: (1) Determine the sampling plan: Before the ship carrying mineral products docks, determine the length, width, and depth of the ship's hold carrying mineral products, as well as the height of the mineral products loaded in the hold, based on the ship's stowage plan provided by the ship owner, and determine the sampling plan according to the sampling standards. (2) According to the size of the ship's cabin, select the appropriate number of foldable brackets to assemble a support frame, assemble the appropriate length of transverse and longitudinal rails, and install the collection device; use a ship crane or dock crane to lift the automatic mineral sampling equipment onto the cargo ship; (3) According to the sampling plan, first set the original sampling position for the automatic sampling equipment of mineral products so that the sampling device can return to the original sampling position after each sample is collected, and collect the collected samples into bags for inspection. Sampling ends after all samples are collected.

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