Multi-channel slurry analysis device and process

Abstract

This invention discloses a multi-channel slurry analysis device and process. Multiple molds abut against a conveyor belt on a workbench, collectively defining multiple forming cavities. Slurry is introduced into each forming cavity, and after separation, multiple samples are formed. These samples are demolded and sequentially conveyed by the conveyor belt to a camera and a sample measuring mechanism. The camera and central control system identify the surface irregularities and the presence or absence of empty samples on each sample, assigning each sample and empty sample a corresponding number. Based on the surface irregularities of the samples, a multi-axis motion structure drives the measuring probe to translate and / or rotate. During the movement, the measuring probe measures the spectral composition and content of the sample surface, providing feedback on the composition and content of the corresponding numbered sample. Multiple slurry samples can be simultaneously sampled and prepared in a single operation. The measuring mechanism measures multiple samples based on the same image, and stores them holistically, facilitating the formation of a standardized database. Mechanized sampling, sample preparation, and transmission, along with image recognition and automated sample measuring, improves sampling efficiency and quality.

Description

Technical Field

[0001] This invention relates to slurry testing, and more particularly to a multi-channel slurry analysis device and a multi-channel slurry analysis process. Background Technology

[0002] Improving the stability of concentrate grade and the recovery rate of useful minerals has always been a goal pursued by the mining industry, in order to make efficient use of mineral resources and avoid waste of mineral resources.

[0003] Among them, adjusting the flotation parameters is the key and difficult point to improve the ore recovery rate. To accurately adjust the flotation parameters, it is necessary to sample and test the flotation concentrate, and adjust the flotation parameters according to the test data.

[0004] In existing technologies, relying on workers' visual and tactile detection involves significant uncertainties; manual sampling and sample preparation, as well as handheld fluorescence instruments, are also inefficient. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems mentioned above, and to provide a multi-channel slurry analysis device that facilitates automated sampling, sample preparation and testing, improves the efficiency and quality of slurry analysis, and ensures that the test results are more consistent with the overall level of the entire flotation equipment through multi-channel testing.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A multi-channel slurry analysis device includes a transmission mechanism, a sample preparation unit, a camera, and a sample measuring mechanism.

[0008] The conveying mechanism includes a primary fabric roller, a conveyor belt drawn from the primary fabric roller, a worktable suitable for supporting the conveyor belt, and a take-up roller, which is suitable for taking up the conveyor belt extending from the worktable.

[0009] Above the workbench, arranged sequentially along the left-right direction, are the sample preparation unit, camera, and sample measuring mechanism:

[0010] The sample preparation unit includes multiple sample preparation mechanisms arranged in a front-to-back direction. Each sample preparation mechanism includes a mold, a lifting cylinder, and a sample feeding nozzle. The lifting cylinder is adapted to drive the mold to abut against or move away from the conveyor belt on the worktable, so that the mold and the conveyor belt together define the forming cavity or release the sample in the forming cavity. The sample feeding nozzle is adapted to flow the slurry into the forming cavity through the sample inlet of the mold. The mold is adapted to filter out the slurry of the slurry to form the sample.

[0011] The camera is suitable for imaging the upper surface of the samples and empty samples prepared by the multiple sample preparation mechanisms. The central control system identifies the concave and convex shape of the upper surface of each sample and whether there is an empty sample based on the imaging. Each sample and empty sample is assigned a corresponding number.

[0012] The sampling mechanism includes a multi-axis motion structure and a sampling probe mounted on the multi-axis motion structure. The central control system calculates the motion data of the sampling probe based on the unevenness of the sample's upper surface. The multi-axis motion structure drives the sampling probe to translate and / or rotate based on the motion data. The sampling probe measures the spectrum of the sample's upper surface during the movement. The central control system feeds back the composition and content of the corresponding numbered sample based on the spectral composition and its content.

[0013] The mold has a filter cylinder at its lower end, and the cavity of the filter cylinder is suitable for forming. The lower end of the telescopic rod of the lifting cylinder passes through the top of the mold and is connected to a pressure block. The telescopic rod of the lifting cylinder is fitted with a return spring. The upper end of the return spring pushes the telescopic rod of the lifting cylinder, and the lower end pushes the top of the mold, so that the top of the mold is in contact with the pressure block under normal conditions. The pressure block is suitable for squeezing the slurry in the filter cylinder.

[0014] Compared with the prior art, the beneficial effects of this application include: multiple slurry samples can be sampled and prepared simultaneously in a single operation; the testing mechanism can measure and store multiple slurry samples based on the same image in a single operation, making it easy to form a standardized database; mechanized sampling, sample preparation and transmission are adopted, and image recognition and automatic sampling are used to improve the efficiency and quality of sampling.

[0015] As an improvement to the above technical solution, the conveyor belt is a filter cloth, the workbench is provided with multiple annular grooves arranged at intervals along the front-back direction, a support platform suitable for being surrounded one-to-one by the annular grooves, a drain port is opened at the lower end of the annular grooves, the support platform is suitable for supporting the filter cylinder through the filter cloth, and the annular grooves are suitable for collecting the slurry seeping from the peripheral wall of the filter cylinder.

[0016] As an improvement to the above technical solution, the conveyor belt is a filter cloth, the workbench is provided with multiple annular grooves arranged at intervals along the front-back direction, and a support platform suitable for being surrounded one-to-one by the annular grooves. The annular grooves are suitable for connecting to the pump. The mold cover is covered with a water filter cylinder. The inner wall of the lower end of the mold and the outer wall of the water filter cylinder define a drainage annular groove. The support platform is suitable for supporting the water filter cylinder through the filter cloth, and the workbench is suitable for supporting the mold so that the drainage annular groove aligns with the annular groove.

[0017] As an improvement to the above technical solution, it also includes a slide and a sludge collection tank. The sample feeding nozzle is set on the slide, and the slide is driven by an adjustment power component. The adjustment power component is suitable for driving the slide and the sample feeding nozzle to move left and right, so that the sample feeding nozzle alternately corresponds to the sample inlet and the sludge collection tank of the mold.

[0018] As an improvement to the above technical solution, the support platform is a pulse vibration block, which is electrically connected to the central control system.

[0019] A multi-channel slurry analysis process includes the following steps:

[0020] Sampling, mold and filter cylinder descend, the support platform supports the filter cylinder through the filter cloth, the filter cylinder and the conveyor belt define the forming cavity, the workbench supports the lower end of the mold, so that the drain ring groove connects with the ring groove, the sample supply nozzle is connected to the device under test through the sample supply pipe, and the slurry flows into the forming cavity through the sample supply nozzle of the device under test, and the slurry submerges the drain ring groove.

[0021] Sample preparation: the sample feeding nozzle stops feeding the sample into the mold, and the pump connected to the annular groove starts for T1 time, creating negative pressure in the annular groove and the drainage annular groove, causing the slurry on the inner wall of the mold to slide into the molding cavity, causing the slurry in the molding cavity to precipitate out the liquid, and the mold is formed to obtain the sample.

[0022] Sample transfer, pumping pump paused, mold and filter cylinder rose, sample fell off by its own weight and separated from filter cylinder, after demolding sample was transferred to the bottom of camera through filter cloth, camera simultaneously photographed each sample and / or empty sample under filter cloth, central control system identified the concave and convex shape of the upper surface of each sample and the presence or absence of empty sample based on imaging, each sample and empty sample was assigned a corresponding number.

[0023] In sample analysis, the central control system calculates the motion data of the sample probe based on the unevenness of the sample's upper surface. The multi-axis motion structure drives the sample probe to translate and / or rotate based on the motion data. The sample probe measures the spectrum of the sample's upper surface during the movement. The central control system feeds back the composition and content of the corresponding numbered sample based on the spectral composition and content.

[0024] During the cleaning process, the mold and filter cylinder descend, and the cleaning solution is flushed through the sample supply pipe to the sample supply nozzle and the forming cavity. The sample supply pipe and sample supply nozzle are rinsed, and the resulting wastewater is allowed to settle in the forming cavity for a time T2. Then, the pump is started for a time T3, and the wastewater is separated into liquid. The resulting sludge is scattered on the filter cloth and carried away with the filter cloth after the mold rises.

[0025] As an improvement to the above technical solution, in the sampling step, after the mold is lowered into position and the slurry is discharged from the sampling nozzle above the sludge collection tank, the slide drives the sampling nozzle to move towards the sampling port of the mold. After the sampling nozzle injects slurry into the sampling port of the mold for a time T4, it moves back towards the sludge collection tank.

[0026] As an improvement to the above technical solution, the sample nozzle is equipped with a flow meter, a flow rate meter and an adjustment power component electrically connected to the central control system. After the sample nozzle discharges slurry above the sludge collection tank and the flow rate reaches Q1, the slide block drives the sample nozzle toward the mold inlet for a duration of T4.

[0027] As an improvement to the above technical solution, in the sample preparation step, during the first 50%-85%T1 of the pumping time, the support emits pulse waves to the slurry in the forming cavity. Attached Figure Description

[0028] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0029] Figure 1 This is a schematic diagram of the structure of the multi-channel slurry analysis device according to an embodiment of the present invention;

[0030] Figure 2 for Figure 1 A cross-sectional view of a multi-channel slurry analyzer with the sample supply line concealed is shown.

[0031] Figure 3 for Figure 2 A partial structural schematic diagram of a multi-channel slurry analysis device is shown.

[0032] Figure 4 for Figure 3 The front view shows the structure with its components hidden.

[0033] Figure 5 for Figure 4 An exploded view of the structure is shown;

[0034] Figure 6 This is a schematic diagram of two extrusion dehydration methods for the mold in an embodiment of the present invention;

[0035] Figure 7 for Figure 2 An exploded view of the mold and filter cylinder of a multi-channel slurry analyzer is shown.

[0036] The accompanying drawings are only one specific embodiment of the present invention, and the form and structure of this specific embodiment should not limit the extension of other embodiments.

[0037] 100 conveying mechanism, 110 original cloth roller, 120 conveyor belt, 130 worktable, 131 annular groove, 132 support, 133 cover, 140 winding roller;

[0038] Sample preparation unit 200, sample preparation mechanism 210, mold 211, sample inlet 211a, water filter 211b, drain ring groove 211c, lifting cylinder 212, sample supply nozzle 213, pressure block 214, return spring 215, slide 216, dirt collection tank 217.

[0039] The sample measuring mechanism is 300, the multi-axis motion structure is 310, and the sample measuring probe is 320.

[0040] Sample supply tube 410, first on / off valve 420, second on / off valve 430, third on / off valve 440. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0042] Reference Figures 1 to 6 This invention provides a multi-channel slurry analysis device, including a transmission mechanism 100, a sample preparation unit 200, a camera, and a sample measuring mechanism 300.

[0043] The transmission mechanism 100 includes a primary fabric roller 110, a transmission belt 120 pulled out from the primary fabric roller 110, a worktable 130 adapted to support the transmission belt 120, and a take-up roller 140 adapted to take up the transmission belt 120 extending from the worktable 130.

[0044] Above the workbench 130, the sample preparation unit 200, the camera, and the sample measuring mechanism 300 are arranged sequentially along the left and right directions.

[0045] The sample preparation unit 200 includes multiple sample preparation mechanisms 210 arranged in the front-back direction. Each sample preparation mechanism 210 includes a mold 211, a lifting cylinder 212, and a sample feeding nozzle 213. The lifting cylinder 212 is adapted to drive the mold 211 to abut against or move away from the conveyor belt 120 on the worktable 130, so that the mold 211 and the conveyor belt 120 jointly define the forming cavity, or release the sample in the forming cavity. The sample feeding nozzle 213 is adapted to flow into the forming cavity through the sample inlet 211a of the mold 211. The mold 211 is adapted to filter out the slurry of the slurry to form a sample.

[0046] The camera is suitable for imaging the upper surface of the samples and empty samples prepared by the multiple sample preparation mechanisms 210. The central control system identifies the concave and convex shape of the upper surface of each sample and whether there is an empty sample based on the imaging. Each sample and empty sample is assigned a corresponding number.

[0047] The sampling mechanism 300 includes a multi-axis motion structure 310 and a sampling probe 320 mounted on the multi-axis motion structure 310. The central control system calculates the motion data of the sampling probe 320 based on the unevenness of the sample's upper surface. The multi-axis motion structure 310 drives the sampling probe 320 to translate and / or rotate according to the motion data. The sampling probe 300 performs a carpet-like detection of the sample's upper surface. The sampling probe 320 measures the spectrum of the sample's upper surface during movement. The central control system provides feedback on the composition and content of the corresponding numbered sample based on the spectral composition and content. Empty samples are not sampled, and the result of the corresponding number is directly fed back as an empty sample.

[0048] The original fabric roller 110 and the take-up roller 140 are rotatably connected to the frame. The take-up roller 140 is driven by a motor, and the original fabric roller 110 is driven by a damper and / or a motor. The take-up roller 140 winds up the conveyor belt 120, so that the conveyor belt 120 is pulled out from the original fabric roller 110 and dragged across the worktable 130. The conveyor belt 120 moves horizontally on the worktable 130 to obtain a sample, and then drives the sample to pass sequentially through the camera and the sample measuring mechanism 300.

[0049] Reference Figure 1 The sampling nozzle 213 is connected to the tested equipment (flotation equipment, etc.) sequentially through the sampling pipe 410 and the first on / off valve 420 to obtain slurry. The sampling nozzle 213 is connected to the cleaning fluid sequentially through the sampling pipe 410 and the second on / off valve 430. When injecting the sample, the first on / off valve 420 is opened and the second on / off valve 430 is closed. When flushing the pipeline and the sampling nozzle 213, the second on / off valve 430 is opened and the first on / off valve 420 is closed. Depending on the levelness and curvature of the pipeline layout, the natural flow of the slurry and cleaning fluid for sampling may be relatively difficult. Preferably, the sampling nozzle 213 is connected to the first on / off valve 420 and the second on / off valve 430 through a sampling pump, that is, the sampling pipe 410 is equipped with a sampling pump.

[0050] The main body of the analytical device of this invention (transmission mechanism 100, sample preparation unit 200, camera, and sample measuring mechanism 300) is generally located far from the equipment being tested (flotation equipment, etc.), or even in a separate chamber. The first shut-off valve 420 and the second shut-off valve 430 are placed close to the equipment being tested and far from the sample supply nozzle 213. Therefore, in the overall sample supply line, the pipe length between the first shut-off valve 420 and the flotation equipment accounts for a small proportion, while the length of the sample supply pipe 410 accounts for a large proportion. The sample supply pipe 410 is cleaned to a certain extent, and the sample supply line after the slurry is cleaned to a large extent.

[0051] The first on / off valve 420 and the second on / off valve 430 can be ordinary ball valves, which are manually controlled to open and close; or they can be solenoid valves, which are controlled to open and close by a central control system.

[0052] In this invention, the multiple sample preparation mechanisms 210 can be used to simultaneously collect mineral samples from multiple locations of a single tested device, i.e., to sample multiple mineral samples from the same tested device, or to simultaneously collect a single mineral sample from multiple tested devices. (Refer to...) Figure 1 The sampling nozzle 213 is designed to be connected to multiple devices under test through multiple first on / off valves 420. The slurry analysis device can prepare multiple ore samples from one device under test with a single injection, and prepare ore samples from multiple devices by intermittent sampling.

[0053] Reference Figure 1 Furthermore, the middle part of the sample supply tube 410 is connected to the cleaning fluid through the third shut-off valve 440. The third shut-off valve 440 is placed close to the sample supply nozzle 213 and far away from the device under test. The third shut-off valve 440 is a solenoid valve and is electrically connected to the central control system.

[0054] Understandably, the central control system can be a control system such as a microcontroller, PLC, or PC.

[0055] The water filter cartridge 211b can be a honeycomb structure made of carbon powder, coconut shell powder, etc., or it can be made of cloth. (See reference) Figures 4 to 7 A filter cylinder 211b is provided at the lower end of the mold 211, and the cavity of the filter cylinder 211b is suitable as a forming cavity. Preferably, a mesh frame is provided at the lower end of the mold 211, with the inner wall of the mesh frame attached to the outer wall of the filter cylinder 211b. If attached, the filter cylinder 211b is mainly suitable for filtering water, and the mesh frame is suitable for maintaining the shape of the filter cylinder 211b to ensure the forming shape of the sample. The mesh size of the mesh frame is set according to the tension deformation and flexibility of the filter mesh; while ensuring the rigidity of the mesh frame and the filter cylinder 211b, a larger mesh size is selected.

[0056] In some configurations, the filter cylinder 211b at the lower end of mold 211 produces natural filtrate, resulting in a slower filtrate sample preparation rate. (Refer to...) Figure 6 To improve the filtration rate of the mold 211, in some embodiments of the present invention, the lower end of the telescopic rod of the lifting cylinder 212 passes through the top of the mold 211 and is connected to a pressure block 214. The telescopic rod of the lifting cylinder 212 is fitted with a return spring 215. The upper end of the return spring 215 pushes the telescopic rod of the lifting cylinder 212, and the lower end pushes the top of the mold 211, so that the top of the mold 211 is in contact with the pressure block 214 under normal conditions. In addition, the pressure block 214 is suitable for squeezing the slurry in the filter cylinder 211b.

[0057] Furthermore, refer to Figure 6 In design B, the conveyor belt 120 is a filter cloth, the workbench 130 is provided with multiple annular grooves 131 arranged at intervals in the front-back direction, and a support 132 suitable for being surrounded one-to-one by the annular grooves 131. A drain port is opened at the lower end of the annular grooves 131. The support 132 is suitable for supporting the filter cylinder 211b through the filter cloth, and the annular grooves 131 are suitable for collecting the slurry seeping from the peripheral wall of the filter cylinder 211b.

[0058] When the sample is formed by the filter cartridge 211b, and the pressure block 214 is far away from the sample, the sample surface is prone to adhesion and corrosion. Similarly, increasing the filtrate rate can result in a smoother sample surface, as shown in the reference [reference needed]. Figures 2 to 5 , Figure 7 The conveyor belt 120 is a filter cloth. The worktable 130 is provided with multiple annular grooves 131 arranged at intervals in the front-back direction and a support 132 suitable for being surrounded one-to-one by the annular grooves 131. The annular grooves 131 are suitable for connecting to the pump. The mold 211 is covered with a filter cylinder 211b. The inner wall of the lower end of the mold 211 and the outer wall of the filter cylinder 211b define a drainage annular groove 211c. The support 132 is suitable for supporting the filter cylinder 211b through the filter cloth. The worktable 130 is suitable for supporting the mold 211 so that the drainage annular groove 211c aligns with the annular grooves 131.

[0059] Reference Figure 4 , Figure 5 Furthermore, the support platform 132 is provided with a sealing gasket suitable for being pressed down by the filter cylinder 211b, and the worktable 130 is provided with a sealing ring suitable for being pressed down by the lower end of the mold 211.

[0060] It is understandable that both sampling pumps and drainage pumps are types of water pumps, specifically pumps that can pump both slurry and pure liquid, such as centrifugal pumps, which have relatively high requirements for wear resistance.

[0061] Ideally, the camera should be a CCD camera, CMOS camera, etc. For example, a CCD camera is a digital camera with a charge-coupled device (CCD) image sensor. It uses semiconductor devices to convert optical images into digital signals, converting light into electrical charges and storing and transferring those charges. It can capture an entire image at once, or crop a square area from it. The stored image can be transmitted to a printer, storage device, or display screen. In industry, CCD cameras are widely used for PCB board imaging and targeted placement, as well as for product pattern shape analysis for selection or rejection.

[0062] The lifting cylinder 212 can be a pneumatic cylinder, an electric cylinder, or a hydraulic cylinder.

[0063] The multi-axis motion structure 310 includes multiple components such as an X-axis linear motion component, a Y-axis linear motion component, a Z-axis linear motion component, an X-axis rotation component, a Y-axis rotation component, and a Z-axis rotation component, and the sample probe 320 translates and / or oscillates.

[0064] In the grade analysis of ore samples, the sample probe 320 can be an X-ray fluorescence spectrometer, an electron-pair effect and Compton scattering photon combined analyzer, a laser-induced breakdown spectrometer, etc.

[0065] Reference Figure 1 , Figure 2 A multi-path slurry analysis process includes sampling, sample preparation, sample transfer, sample analysis, and cleaning steps.

[0066] Sampling is performed as follows: mold 211 and filter cylinder 211b descend, and support 132 supports filter cylinder 211b via filter cloth. Filter cylinder 211b and conveyor belt 120 together define the forming cavity. Workbench 130 supports the lower end of mold 211, aligning drain annular groove 211c with annular groove 131. Sample nozzle 213 connects to the device under test via sample supply pipe 410. Slurry flows from the device under test into the forming cavity through sample nozzle 213, submerging drain annular groove 211c. The depth H2 of drain annular groove 211c is set according to the required sample height H1, where H1 > H2. It can also be understood that slurry height H3 > H1. Sample height H1 is generally the company's standard. On the other hand, in some companies' management plans, the sample height is not standard, and workers use molds 211 with different drain annular groove 211c depths each time. Therefore, during sample preparation, it is essential to maintain negative pressure in drain annular groove 211c and annular groove 131. The mold 211 and the lifting cylinder 212 telescopic rod are detachably connected.

[0067] Sample preparation begins when the sample feed nozzle 213 stops feeding the sample into the mold 211. The pump connected to the annular groove 131 starts for a duration T1 (e.g., 90 seconds), creating negative pressure in the annular groove 131 and the drainage annular groove 211c. This causes the slurry on the inner wall of the mold 211 to slide cleanly into the molding cavity, resulting in the precipitation of slurry liquid within the molding cavity. The mold 211 then forms the sample, which has a relatively smooth upper surface. It is understood that the duration T1 is set based on the total amount of slurry in the molding cavity.

[0068] Sample transfer, pumping stops, mold 211 and filter cylinder 211b rise, sample falls off by its own weight and separates from filter cylinder 211b. After demolding, sample is transferred to the area below camera via filter cloth. Camera simultaneously captures images of each sample and / or empty sample on the filter cloth below. Based on the images, central control system identifies the surface irregularities of each sample and the presence or absence of empty samples, and assigns corresponding numbers to each sample and empty sample.

[0069] In sample analysis, the central control system calculates the motion data of the sample probe 320 based on the unevenness of the sample's upper surface. The multi-axis motion structure 310 drives the sample probe 320 to translate and / or rotate based on the motion data. The sample probe 320 measures the spectrum of the sample's upper surface during the movement. The central control system feeds back the composition and content of the corresponding numbered sample based on the spectral composition and content.

[0070] The cleaning process involves the mold 211 and filter cylinder 211b descending. The filter cylinder 211b and conveyor belt 120 together define the forming cavity. The cleaning fluid is flushed through the sample supply pipe 410 to the sample supply nozzle 213 and the forming cavity, thus rinsing the sample supply pipe 410 and the sample supply nozzle 213. The resulting wastewater is allowed to settle in the forming cavity for a time T2 (e.g., 5 seconds), followed by a time T3 (e.g., 10 seconds). The wastewater precipitates as water, and the resulting sludge is scattered on the filter cloth and carried away with the filter cloth after the mold 211 rises. A very small amount of sludge remaining at the lower edge of the filter cylinder 211b is eventually incorporated into the lower end of the new sample, without affecting the composition of the upper surface of the new sample or the measurement of the new sample. There is no substantial impact between two adjacent mineral samples in the same mold 211. The negative pressure suction cleaning method ensures that the filter cylinder 211b, the drain ring groove 211c, and the annular groove 131 are relatively clean. Depending on the actual situation, the rinsing and suction process may be performed once or multiple times during the cleaning step.

[0071] The cleaning step can occur during sample imaging and / or sample analysis.

[0072] It is understandable that the ore sample is not demolded only after it has completely dried to adhere to the filter cylinder 211b. Once the ore sample has separated water and formed, it can be demolded and tested.

[0073] Compared with the prior art, the beneficial effects of this application include: multiple slurry samples can be prepared simultaneously in a single sampling, the sampling mechanism 300 can measure multiple samples based on the same image, and store the multiple slurry samples in a single measurement, which is easy to form a standardized database; mechanized sampling, sample preparation and transmission are adopted, and image recognition and automatic sampling are used to improve sampling efficiency and quality.

[0074] In some embodiments of the present invention, the inner wall of the mold is provided with atomizing nozzles. The atomizing nozzles are connected to the release agent through a supply pipe, a fourth shut-off valve, and a supply pump. The atomizing nozzles are also connected to the atmosphere through the supply pipe and the fifth shut-off valve. In the sampling step, the mold 211 is lowered into position, the fourth shut-off valve is opened, and the supply pump sprays the atomizing release agent into the cavity of the filter cylinder 211b through the atomizing nozzles. Then, the fourth shut-off valve is closed and the molding cavity is filled with slurry. In the sample preparation step, the fourth shut-off valve is closed and the fifth shut-off valve is opened. Under the suction of the pump, the supply pipe is ventilated and cleaned, and the air intake of the supply pipe is synchronously adapted to drive out the slurry.

[0075] Reference Figure 4 , Figure 5 In some embodiments of the present invention, the inner bottom of the annular groove 131 is an inclined plane, and the sewage outlet of the annular groove 131 is positioned at the lower end of the inner bottom of the annular groove 131. During negative pressure pumping, it can quickly and effectively suck up and improve the cleanliness of the mineral liquid and sewage.

[0076] Reference Figures 1 to 4In some embodiments of the present invention, a slide 216 and a sludge collection tank 217 are also included. The sample feeding nozzle 213 is disposed on the slide 216. The slide 216 is connected to an adjustment power component, such as a motor and lead screw nut pair, a motor and belt pair, a cylinder, etc. The adjustment power component is adapted to drive the slide 216 and the sample feeding nozzle 213 to move left and right, so that the sample feeding nozzle 213 alternately corresponds to the sample inlet 211a of the mold 211 and the sludge collection tank 217.

[0077] Reference Figures 1 to 4 During the sampling step, after the mold 211 descends to its final position and the sampling nozzle 213 dispenses slurry above the collection tank 217, the slide 216 drives the sampling nozzle 213 towards the inlet 211a of the mold 211. After the sampling nozzle 213 dispenses slurry into the inlet 211a of the mold 211 for a duration of T4, it returns to the collection tank 217. At this time, the inlet 211a of the mold 211 is used as a vent. After the sampling nozzle 213 dispenses slurry, the slurry is dispensed for a duration of T4, such as 3 seconds, to ensure that sufficient slurry H3 is injected into the molding cavity. Furthermore, during the cleaning step, after the sampling nozzle 213 rinses the mold 211 with cleaning fluid, it is also suitable for rinsing the collection tank 217 with cleaning fluid.

[0078] Furthermore, the sampling nozzle 213 is equipped with a flow meter, a flow rate meter, and an adjustment power component electrically connected to the central control system. After the sampling nozzle 213 discharges slurry above the sludge collection tank 217 and the flow rate reaches Q1, that is, after the sampling nozzle 213 stably discharges slurry, the slide 216 drives the sampling nozzle 213 towards the sample inlet 211a of the mold 211 for a duration of T4. A relatively precise amount of slurry is then filled into the molding cavity.

[0079] In some embodiments of the present invention, the support 132 is a pulse vibration block, which is electrically connected to the central control system. During the sample preparation step, within the first 50%-85%T1 period after the pump starts, the pulse vibration block emits pulse waves into the slurry in the forming chamber. This results in a smoother upper surface of the sample obtained through pumping and vibration, making the measurement data from the measuring probe 320 more consistent with the actual content of the sample. The pulse vibration block can be compared to a pulse massage device, such as a common neck massager.

[0080] Reference Figures 2 to 5 In some embodiments of the present invention, the pulse vibrating block is adapted to be inserted into the worktable 130 from bottom to top. The worktable 130 is screwed to a cover 133 adapted to support the pulse vibrating block, and the cover 133 has a through hole for the pulse vibrating block cable to pass through. Furthermore, the cover 133 supports the pulse vibrating block by a sealing ring or sealant, and the cover 133 is also connected to the worktable 130 by a sealing ring or sealant.

[0081] Reference Figure 1 , Figure 2 In some embodiments of the present invention, the inner bottom of the sludge collection tank 217 is inclined, and a drain outlet is provided at the lower end of the inner bottom of the sludge collection tank 217.

[0082] In some embodiments of the present invention, a sample recovery tank is also included. The camera, the sampling mechanism 300 and the sample recovery tank are arranged sequentially in the left-right direction. The conveyor belt 120 is adapted to transport the sample to the sample recovery tank. The sample can be recovered and crushed to be used as mineral material again.

[0083] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of the technical solutions of the present invention.

Claims

1. A multi-channel slurry analysis device, characterized in that, Includes transmission mechanism, sample preparation unit, camera, and sample measuring mechanism: The conveying mechanism includes a primary fabric roller, a conveyor belt drawn from the primary fabric roller, a worktable suitable for supporting the conveyor belt, and a take-up roller, which is suitable for taking up the conveyor belt extending from the worktable. Above the workbench, arranged sequentially along the left-right direction, are the sample preparation unit, camera, and sample measuring mechanism: The sample preparation unit includes multiple sample preparation mechanisms arranged in a front-to-back direction. Each sample preparation mechanism includes a mold, a lifting cylinder, and a sample feeding nozzle. The lifting cylinder is adapted to drive the mold to abut against or move away from the conveyor belt on the worktable, so that the mold and the conveyor belt together define the forming cavity or release the sample in the forming cavity. The sample feeding nozzle is adapted to flow the slurry into the forming cavity through the sample inlet of the mold. The mold is adapted to filter out the slurry of the slurry to form the sample. The camera is suitable for imaging the upper surface of the samples and empty samples prepared by the multiple sample preparation mechanisms. The central control system identifies the concave and convex shape of the upper surface of each sample and whether there is an empty sample based on the imaging. Each sample and empty sample is assigned a corresponding number. The sampling mechanism includes a multi-axis motion structure and a sampling probe mounted on the multi-axis motion structure. The central control system calculates the motion data of the sampling probe based on the unevenness of the sample's upper surface. The multi-axis motion structure drives the sampling probe to translate and / or rotate based on the motion data. The sampling probe measures the spectrum of the sample's upper surface during the movement. The central control system feeds back the composition and content of the corresponding numbered sample based on the spectral composition and its content. The mold has a filter cylinder at its lower end, and the cavity of the filter cylinder is suitable for forming. The lower end of the telescopic rod of the lifting cylinder passes through the top of the mold and is connected to a pressure block. The telescopic rod of the lifting cylinder is fitted with a return spring. The upper end of the return spring pushes the telescopic rod of the lifting cylinder, and the lower end pushes the top of the mold, so that the top of the mold is in contact with the pressure block under normal conditions. The pressure block is suitable for squeezing the slurry in the filter cylinder.

2. The multi-channel slurry analysis device according to claim 1, characterized in that, The conveyor belt is a filter cloth. The workbench is provided with multiple annular grooves arranged at intervals along the front-back direction and a support platform suitable for being surrounded one-to-one by the annular grooves. A drain port is opened at the lower end of the annular groove. The support platform is suitable for supporting the filter cylinder through the filter cloth. The annular groove is suitable for collecting the slurry seeping from the peripheral wall of the filter cylinder.

3. The multi-channel slurry analysis device according to claim 1, characterized in that, The conveyor belt is a filter cloth. The workbench is provided with multiple annular grooves arranged at intervals along the front-back direction and a support platform suitable for being surrounded one-to-one by the annular grooves. The annular grooves are suitable for connecting to the pump. The mold cover is covered with a water filter cylinder. The inner wall of the lower end of the mold and the outer wall of the water filter cylinder define a drainage annular groove. The support platform is suitable for supporting the water filter cylinder through the filter cloth. The workbench is suitable for supporting the mold so that the drainage annular groove aligns with the annular groove.

4. The multi-channel slurry analysis device according to any one of claims 1 to 3, characterized in that, It also includes a slide and a sludge collection tank. The sample nozzle is set on the slide, and the slide is connected to an adjustment power component. The adjustment power component is suitable for driving the slide and the sample nozzle to move left and right, so that the sample nozzle alternately corresponds to the sample inlet and the sludge collection tank of the mold.

5. The multi-channel slurry analysis device according to claim 2 or 3, characterized in that, The support platform is a pulse vibration block, which is electrically connected to the central control system.

6. A multi-channel slurry analysis process, characterized in that, Includes the following steps: Sampling, mold and filter cylinder descend, the support platform supports the filter cylinder through the filter cloth, the filter cylinder and the conveyor belt define the forming cavity, the workbench supports the lower end of the mold, so that the drain ring groove connects with the ring groove, the sample supply nozzle is connected to the device under test through the sample supply pipe, and the slurry flows into the forming cavity through the sample supply nozzle of the device under test, and the slurry submerges the drain ring groove. Sample preparation: the sample feeding nozzle stops feeding the sample into the mold, and the pump connected to the annular groove starts for T1 time, creating negative pressure in the annular groove and the drainage annular groove, causing the slurry on the inner wall of the mold to slide into the molding cavity, causing the slurry in the molding cavity to precipitate out the liquid, and the mold is formed to obtain the sample. Sample transfer, pumping pump paused, mold and filter cylinder rose, sample fell off by its own weight and separated from filter cylinder, after demolding sample was transferred to the bottom of camera through filter cloth, camera simultaneously photographed each sample and / or empty sample under filter cloth, central control system identified the concave and convex shape of the upper surface of each sample and the presence or absence of empty sample based on imaging, each sample and empty sample was assigned a corresponding number. In sample analysis, the central control system calculates the motion data of the sample probe based on the unevenness of the sample's upper surface. The multi-axis motion structure drives the sample probe to translate and / or rotate based on the motion data. The sample probe measures the spectrum of the sample's upper surface during the movement. The central control system feeds back the composition and content of the corresponding numbered sample based on the spectral composition and content. During the cleaning process, the mold and filter cylinder descend, and the cleaning solution is flushed through the sample supply pipe to the sample supply nozzle and the forming cavity. The sample supply pipe and sample supply nozzle are rinsed, and the resulting wastewater is allowed to settle in the forming cavity for a time T2. Then, the pump is started for a time T3, and the wastewater is separated into liquid. The resulting sludge is scattered on the filter cloth and carried away with the filter cloth after the mold rises.

7. The multi-channel slurry analysis process according to claim 6, characterized in that, In the sampling step, after the mold is lowered into position and the slurry is discharged from the sampling nozzle above the sludge collection tank, the slide drives the sampling nozzle toward the sampling port of the mold. After the sampling nozzle injects slurry into the sampling port of the mold for a time T4, it moves back toward the sludge collection tank.

8. The multi-channel slurry analysis process according to claim 7, characterized in that, The sampling nozzle is equipped with a flow meter, a flow rate meter, and an adjustment power component that is electrically connected to the central control system. After the slurry is discharged from the sampling nozzle above the sludge collection tank and the flow rate reaches Q1, the slide block drives the sampling nozzle toward the mold inlet for a duration of T4.

9. The multi-channel slurry analysis process according to any one of claims 6 to 8, characterized in that, During the sample preparation step, within the first 50%-85%T1 of the pump start-up time, the support emits pulse waves to the slurry in the forming cavity.

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