An ore sample reduction device and method for robot sampling of concentrated ore powder

Abstract

The present invention discloses an ore sample reduction device and method for robotic sampling of concentrate powder, belonging to the technical field of ore sample reduction. The device includes a fixed frame, and multiple groups of reduction pipe units are equidistantly distributed on the fixed frame. It further includes: a vibration unloading device is arranged on the top surface of the fixed frame; a set of vibration dispersion units are correspondingly arranged at the feeding ends of the reduction pipe units, and when feeding ore samples into the reduction pipe units, the vibration dispersion units vibrate the flowing ore samples; through the reduction pipe units, the reduction pipe vibration dispersion units, the reduction pipe bottom unloading sealing unit, the reduction pipe top sealing cover unit and the vibration unloading device, the present invention realizes the entire reduction and sampling operation. Moreover, the vibration dispersion unit can not only make the ore samples evenly fall into the reduction pipes and accumulate layer by layer, but also appropriately cause the reduction pipes to vibrate when discharging the ore samples through the vibration dispersion unit, realizing low-pollution emptying of the reduction pipes, reducing the mutual pollution of ore samples, and ensuring the representativeness of ore sample reduction.

Description

Technical Field

[0001] The present invention relates to the technical field of ore sample reduction, and particularly to an ore sample reduction device and method for robot sampling of concentrate powder. Background Art

[0002] The automatic sampling of concentrate powder of metals such as iron, copper, lead, zinc, gold, molybdenum, nickel, and titanium has been increasingly emphasized, especially the application of robots, which has put forward higher technical expectations and requirements for the sampling of concentrate powder. Ore sample reduction is an important link in the sampling of concentrate powder.

[0003] In the existing automatic ore sample reduction technology, when the moisture content and viscosity of the concentrate powder are relatively high, during the sampling process, this causes the automatic sampling equipment to be difficult to handle the problem of sticky concentrate powder, easily causes sampling pollution problems, cannot solve the problem of ore sample pollution before and after ore sample reduction in a timely manner, and the representativeness of the reduction is also limited. Therefore, inventing an ore sample reduction device that is compatible with the robot automatic sampling system for concentrate powder and can ensure the representativeness of ore sample reduction and ensure that the ore sample is not polluted is of great significance for realizing the automatic sampling of concentrate powder, promoting the unmanned and intelligent sampling of concentrate powder, and promoting the industrial upgrading of robot sampling of concentrate powder. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem of sampling pollution before and after ore sample reduction caused by the high viscosity of concentrate powder and difficult feeding in the prior art, and to propose an ore sample reduction device and method for robot sampling of concentrate powder.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An ore sample reduction device for robot sampling of concentrate powder includes a fixed frame, on which multiple groups of reduction pipe units are equidistantly distributed. A sample unloading sealing unit and a sealing cover unit are respectively arranged at the bottom and top of the reduction pipe unit. It also includes: a vibration sample unloading device is arranged on the top surface of the fixed frame, and the vibration sample unloading device cooperates with the reduction pipe unit; a set of vibration dispersing units is arranged at the feeding end of the reduction pipe unit, and when feeding the ore sample into the reduction pipe unit, the vibration dispersing unit vibrates the flowing ore sample.

[0007] To facilitate the realization of vibration sample unloading, preferably, the vibration sample unloading device includes a movable frame that freely moves on the top surface of the fixed frame. A fixed column is fixedly arranged on the movable frame, multiple groups of sampling pins are arranged on the fixed column, and a vibrator is arranged on the movable frame, and the vibrator cooperates with the sampling pins.

[0008] To facilitate the movement of the movable frame on the fixed frame, further, a cross beam is slidably arranged on the fixed frame, first slide rails are fixedly arranged at the tops of both sides of the fixed frame, both ends of the cross beam are fixedly connected to the output ends of the first slide rails respectively, a gear belt for driving the cross beam to slide is arranged on the fixed frame, and an electric slide table is fixedly arranged on the top of the cross beam, and the bottom of the movable frame is fixedly connected to the output end of the electric slide table.

[0009] To reduce the adhesion of the ore sample in the sample reduction pipe, preferably, the material of the sample reduction pipe unit is ultra-high molecular weight polyethylene.

[0010] Preferably, the vibration and dispersion unit includes at least two groups of vibrating discs, a plurality of sliding grooves are formed on the side wall of the sample reduction pipe unit, one end of the vibrating disc passes through the sliding groove and extends into the sample reduction pipe unit, and a pneumatic vibrator is fixedly arranged at the other end of the vibrating disc, and a driving part for driving the vibrating disc to slide is arranged on the fixed frame.

[0011] Further, the vibrating discs are arranged obliquely, the vibrating discs are respectively located on both sides of the sample reduction pipe unit, and the vibrating discs are distributed vertically.

[0012] Further, the driving part includes a first fixing plate fixedly arranged on the fixed frame, a first connecting plate is slidably arranged on the first fixing plate through a second air cylinder, and the other end of one of the vibrating discs is fixedly arranged on the first connecting plate.

[0013] Preferably, the sample discharging and sealing unit includes a plurality of fixing seats respectively fixedly arranged on the fixed frame, a plurality of sample reduction pipe units are respectively detachably arranged on the corresponding fixing seats, a bottom cover is rotatably arranged at the bottom of the sample reduction pipe unit, a third clamp is fixedly arranged on the sample reduction pipe unit, a lever air cylinder is fixedly arranged on the third clamp, one end of the bottom cover is fixedly connected to the pressing plate of the lever air cylinder, and a second sealing gasket is fixedly arranged on the bottom cover, and the bottom of the sample reduction pipe unit abuts against the second sealing gasket.

[0014] Further, the sealing cover unit includes an upper cover arranged on the top of the sample reduction pipe unit, a first clamp is fixedly arranged on the sample reduction pipe unit, a first air cylinder is rotatably arranged on the first clamp, a second clamp is fixedly arranged on the sample reduction pipe unit, an extension plate is fixedly arranged on the outer wall of the upper cover, the extension plate is rotatably connected to the second clamp, and one end of the extension plate far away from the upper cover is rotatably connected to the output end of the first air cylinder, and a first sealing gasket is fixedly arranged in the upper cover, and the top of the sample reduction pipe unit abuts against the first sealing gasket.

[0015] On the other hand, the present invention provides a method for reducing the sample of concentrate powder for robot sampling, including the following steps:

[0016] Step 1: Feed the ore sample to be reduced into the reduction pipe unit by vibrating and discharging the sample.

[0017] Step 2: Vibrate and disperse the cloth to make the ore sample entering the reduction pipe unit vibrate and stratify for stacking. The sample discharging and sealing unit and the sealing cover unit automatically seal both ends of the reduction pipe unit.

[0018] Step 3: The robot automatically takes a reduced sample from the reduction pipe unit to achieve representative reduction of the ore sample.

[0019] Compared with the prior art, the present invention provides an ore sample reduction device for robot sampling of concentrated ore powder, having the following beneficial effects:

[0020] 1. For the ore sample reduction device for robot sampling of concentrated ore powder, by arranging a vibration and dispersion unit in the reduction pipe, not only can the ore sample uniformly fall into the reduction pipe and accumulate layer by layer, but also the reduction pipe can be appropriately vibrated by the vibration and dispersion unit when discharging the ore sample, reducing the residue of highly viscous materials in the reduction pipe, realizing low-pollution emptying of the reduction pipe, reducing the problem of mutual pollution of ore samples, and ensuring the representativeness of ore sample reduction.

[0021] 2. For the ore sample reduction device for robot sampling of concentrated ore powder, by arranging a vibrating disk in the reduction pipe, when the sampling probe conveys the material into the reduction pipe of the material box, due to the structure of the sampling probe and the viscosity of the material, the material will enter the reduction pipe in strips or blocks. At this time, the material falls on the vibration and dispersion unit, which can disperse it and make it as evenly filled in the reduction pipe as possible, helping to improve the storage capacity of the reduction pipe.

[0022] 3. For the ore sample reduction device for robot sampling of concentrated ore powder, by arranging an upper cover on the reduction pipe, it is convenient to seal the top of the reduction pipe, improve the protection effect, reduce cross-contamination between materials, and a first sealing gasket is fixedly arranged on the upper cover, which can improve the sealing effect between the upper cover and the reduction pipe, keep the moisture of the concentrated ore powder in the reduction pipe from flowing out, and ensure the accuracy of the sample moisture index in the reduction sampling process.

[0023] The parts not involved in this device are the same as or can be implemented by the prior art. By arranging a vibration and dispersion unit in the reduction pipe, the present invention can not only make the ore sample uniformly fall into the reduction pipe and accumulate layer by layer, but also appropriately cause the reduction pipe to vibrate through the vibration and dispersion unit when discharging the ore sample, reduce the residue of highly viscous materials in the reduction pipe, realize low-pollution emptying of the reduction pipe, reduce the problem of mutual pollution of ore samples, and ensure the representativeness of ore sample reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The structural schematic diagram of an ore sample reduction device for robot sampling of concentrated ore powder proposed by the present invention Figure 1 ;

[0025] Figure 2 Structural schematic of a sample reduction device for robot sampling of concentrate powder proposed by the present invention Figure 2 ;

[0026] Figure 3 Structural schematic of a sample reduction device for robot sampling of concentrate powder proposed by the present invention Figure 3 ;

[0027] Figure 4 Structural schematic diagram of the movable frame of a sample reduction device for robot sampling of concentrate powder proposed by the present invention;

[0028] Figure 5 Structural schematic diagram of the sample reduction pipe of a sample reduction device for robot sampling of concentrate powder proposed by the present invention;

[0029] Figure 6 Structural schematic diagram of the vibrating disk of a sample reduction device for robot sampling of concentrate powder proposed by the present invention.

[0030] In the figure: 1, fixed frame; 101, first slide rail; 102, gear belt; 103, cross beam; 2, movable frame; 201, electric slide table; 202, fixed column; 3, sampling probe; 4, sample reduction pipe unit; 401, fixed seat; 402, chute; 5, vibrator; 501, longitudinal moving seat; 502, transverse moving seat; 503, vertical moving seat; 6, first fixing plate; 601, first connecting plate; 602, vibrating disk; 603, second connecting plate; 604, third connecting plate; 605, second fixing plate; 7, first clamp; 701, first cylinder; 702, upper cover; 703, second clamp; 8, lever cylinder; 801, bottom cover. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0033] Embodiment:

[0034] Refer to Figures 1-6, A device for ore sample reduction and division for robotic sampling of concentrated ore powder, comprising a fixed frame 1, on which multiple groups of reduction pipe units 4 are equidistantly distributed. A sample discharging and sealing unit and a sealing cover unit are respectively arranged at the bottom and top of the reduction pipe unit 4. There are two to ten groups of reduction pipe units 4. Here, according to the actual use situation, we preferably choose three groups. Each group of reduction pipe units 4 is composed of multiple reduction pipes. Here, we preferably use four reduction pipes to form each group of reduction pipe units 4, which can place and store materials of the same or different batches or times, realizing classified storage and improving the use effect. Moreover, the reduction pipe unit 4 is made of wear-resistant and non-ore-sticking polymer materials, such as ultra-high molecular weight polyethylene or polytetrafluoroethylene or polypropylene, etc. Preferably, it is ultra-high molecular weight polyethylene, which has extremely high wear resistance, a smooth surface, is not easy to adhere to ores and other materials, and is also resistant to acids and alkalis and chemical corrosion, ensuring that concentrated ore powder with high moisture and high viscosity is not easy to adhere in the ore sample reduction pipe unit 4. Combined with the automatic remaining sample emptying design for bottom sample discharging, it realizes non-pollution of ore samples between the reduction and division of ore samples of different batches and different types. It also includes: a vibration sample discharging device is arranged on the top surface of the fixed frame 1, and the vibration sample discharging device cooperates with the reduction pipe unit 4. During use, when putting ore samples into the reduction pipe unit 4, the vibration sample discharging device can generate vibration to make the ore samples quickly and completely enter the reduction pipe unit 4; a vibration dispersion unit is correspondingly arranged at the feeding end of the reduction pipe unit 4. When feeding ore samples into the reduction pipe unit 4, the vibration dispersion unit vibrates the flowing ore samples to make the ore samples entering the reduction pipe unit 4 be stacked in layers.

[0035] The movable frame 2 moves freely on the top surface of the fixed frame 1. A sampling drill 3 is provided on the movable frame 2. The sampling drill 3 is a prior art. During use, the sampling drill 3 can be grasped by a robot to sample the material and place the sampling drill 3 on the movable frame 2. Among them, a vibrator 5 is installed on the movable frame 2 through a moving part. The vibrator 5 cooperates with the sampling drill 3. During use, the movable frame 2 moves on the fixed frame 1, and the sampling drill 3 can be brought to the corresponding sample reduction pipe unit 4 to feed materials into the sample reduction pipe unit 4. At this time, the moving part is started to drive the vibrator 5 to move directly above the sampling drill 3. A sample discharging hammer is fixedly arranged at the output end of the vibrator 5, and the bottom of the sample discharging hammer abuts against the top of the sampling drill 3. Under the action of the vibrator 5 and the sample discharging hammer, not only can the materials in the sampling drill 3 be quickly discharged, but also the residue of highly viscous materials in the sampling drill 3 can be reduced, and it can be discharged as clean as possible within a certain time, reducing the problem of mutual contamination of ore samples, ensuring the representativeness of ore sample reduction, realizing automatic sampling of concentrate powder, which is of great significance for promoting the unmanned and intelligent sampling of concentrate powder and for promoting the industrial upgrading of robot sampling of concentrate powder. And a vibration dispersion unit is provided at the feeding end of each sample reduction pipe unit 4. By setting a vibration dispersion unit at the feeding end of the sample reduction pipe unit 4, when the sampling drill 3 feeds materials into the sample reduction pipe unit 4, the materials fall on the vibration dispersion unit, and the vibration dispersion unit vibrates the ore samples flowing through it to disperse them. That is to say, when the sampling drill 3 puts the materials into the sample reduction pipe unit 4, due to the structure of the sampling drill 3 and the viscosity of the materials, the materials will enter the sample reduction pipe unit 4 in strips or blocks. At this time, the materials fall on the vibration dispersion unit, and it can be dispersed to make it evenly fill the sample reduction pipe unit 4. This not only helps to improve the storage capacity of the sample reduction pipe unit 4, but also enables the ore samples taken multiple times to be stacked in layers in the sample reduction pipe unit 4 in sequence, so that the ore samples of the same variety or the same batch are layered in the sample reduction pipe unit 4 according to the feeding order of the sampling drill 3. When the sample reduction sampling drill 3 is inserted into the sample reduction pipe unit 4 for sampling, it can realize layered and sample reduction sampling. The robot drives the sample reduction sampling drill 3 to automatically sample and reduce the sample in the sample reduction pipe unit 4, ensuring the representativeness and accuracy of the concentrate powder sample reduction, being not affected by the moisture, viscosity, etc. of the ore samples, and improving the use effect.

[0036] Refer to Figures 1-4, the vibrating sample discharging device includes a movable frame 2 that moves freely on the top surface of a fixed frame 1. A fixed column 202 is fixedly arranged on the movable frame 2. Multiple groups of sampling probes 3 are arranged on the fixed column 202. A vibrator 5 is arranged on the movable frame 2, and the vibrator 5 is matched with the sampling probes 3. Among them, multiple groups of through holes matching the sampling probes 3 are opened on the fixed column 202. The number of through holes is two to four groups, preferably two groups. That is to say, two sampling probes 3 can be placed simultaneously. When in use, when the first sampling probe 3 is discharging materials, the robot can take the second sampling probe 3 for sampling. After sampling is completed, it is reinstalled on the fixed column 202. At this time, the materials in the first sampling probe 3 are discharged completely. Under the action of the moving part, the vibrator 5 moves to the upper part of the second sampling probe 3 to help it discharge materials. And the robot can take away the first sampling probe 3 for sampling. By continuously circulating, rapid and continuous sampling can be achieved, improving the use effect. The sampling probe 3 is slidably arranged in one group of through holes, and the moving part is arranged on the movable frame 2. By arranging the fixed column 202 on the movable frame 2, it is convenient to limit the sampling probe 3. Moreover, through the moving part, the vibrator 5 can be driven to move on the movable frame 2 to realize the change of position, which is convenient for vibrating and discharging materials for the two sampling probes 3.

[0037] Refer to Figure 4 , here, according to the actual use situation, the moving part is designed as a longitudinal moving seat 501 fixedly arranged on the movable frame 2. A transverse moving seat 502 is fixedly arranged at the output end of the longitudinal moving seat 501. Here, a second slide rail is fixedly arranged on the longitudinal moving seat 501, and the transverse moving seat 502 is fixed at the output end of the second slide rail. Moreover, a third cylinder for driving the transverse moving seat 502 to slide is fixedly arranged on the longitudinal moving seat 501. Similarly, a third slide rail and a fourth slide rail are respectively arranged on the transverse moving seat 502 and the vertical moving seat 503. Then, a fourth cylinder for driving the vertical moving seat 503 to slide is fixedly arranged on the transverse moving seat 502. A fifth cylinder for driving the vibrator 5 to lift is fixedly arranged on the vertical moving seat 503. A vertical moving seat 503 is fixedly arranged at the output end of the transverse moving seat 502, and the outer shell of the vibrator 5 is fixedly connected to the output end of the vertical moving seat 503. When in use, by using the moving part on the movable frame 2 to drive the vibrator 5 to move correspondingly, it can move to the upper part of the corresponding sampling probe 3 in turn according to the specific use situation to help it vibrate and discharge materials, improving the use effect.

[0038] Refer to Figures 1-4, a cross beam 103 is slidably arranged on the fixed frame 1. Here, we symmetrically arrange two groups of cross beams 103. The two groups of cross beams 103 are fixedly connected by a connecting rod. At the top of both sides of the fixed frame 1, first slide rails 101 are fixedly arranged. The two ends of the cross beam 103 are respectively fixedly connected to the output ends of the first slide rails 101. Moreover, a gear belt 102 for driving the cross beam 103 to slide is arranged on the fixed frame 1. And an electric slide table 201 is fixedly arranged on the top of the cross beam 103. The sliding direction of the cross beam 103 is perpendicular to the sliding direction of the movable frame 2 in space. The bottom of the movable frame 2 is fixedly connected to the output end of the electric slide table 201. When in use, by driving the movable frame 2 with the gear belt 102 and the electric slide table 201, the movable frame 2 can drive the sampling drill 3 to move to the corresponding sampling tube unit 4, so as to realize feeding the sampling tube unit 4.

[0039] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 , here, we set the vibration and dispersion unit to include at least two groups of vibrating trays 602. Here, we preferably set it to three groups of vibrating trays 602. A plurality of groups of sliding grooves 402 are opened on the side wall of the sampling tube unit 4. The sliding grooves 402 are also preferably three groups. The three groups of vibrating trays 602 are respectively slidably arranged in the corresponding sliding grooves 402. And one end of the vibrating tray 602 extends through the sliding groove 402 into the sampling tube unit 4. And a pneumatic vibrator is fixedly arranged at the other end of the vibrating tray 602. The pneumatic vibrator is used to vibrate and disperse the vibrating tray 602. A driving part for driving the vibrating tray 602 to slide is arranged on the fixed frame 1. When in use, by slidably arranging the vibrating tray 602 in the sampling tube unit 4, when the material in the sampling drill 3 falls on the vibrating tray 602, under the action of the vibrator, the vibrating tray 602 can be driven to vibrate and disperse the material, so that it is scattered and falls on the bottom of the sampling tube unit 4. And the three groups of vibrating trays 602 are arranged in an up-and-down state, which can further improve the dispersion effect, help to make the material fill in the sampling tube unit 4, and improve the use efficiency of the sampling tube unit 4.

[0040] Refer to Figure 5 and Figure 6, here, we set the vibrating disk 602 to be inclined, with an inclination angle of 2° to 10°, preferably 4°. By setting the vibrating disk 602 to be inclined, it is convenient for the material to fall to the bottom inside the reducing pipe unit 4. By selecting a relatively small inclination angle, the residence time of the material on the vibrating disk 602 can be extended, so that it can be dispersed as much as possible. The vibrating disks 602 are respectively located on both sides of the reducing pipe unit 4 and are arranged vertically. That is to say, the discharge port of the uppermost group of vibrating disks 602 is above the second group of vibrating disks 602, and the discharge port of the second group of vibrating disks 602 is above the third group of vibrating disks 602, which can achieve multi-stage vibration and dispersion, further improving the dispersion effect.

[0041] Refer to Figure 5 and Figure 6 , here, we design the driving part as the first fixing plate 6 fixedly arranged on the fixed frame 1. A first connecting plate 601 is slidably arranged on the first fixing plate 6 through a second cylinder. The other end of one group of vibrating disks 602 is fixedly arranged on the first connecting plate 601. Preferably, the uppermost group of vibrating disks 602 is fixed on the first connecting plate 601. Similarly, a second fixing plate 605 is fixedly arranged on the fixed frame 1. The first fixing plate 6 and the second fixing plate 605 are respectively located on both sides of the reducing pipe unit 4. Then, a sixth cylinder is fixedly arranged on the second fixing plate 605, and a second connecting plate 603 is fixedly arranged at the output end of the sixth cylinder. The second group of vibrating disks 602 is fixed on the second connecting plate 603. A seventh cylinder is fixedly arranged on the first fixing plate 6, and a third connecting plate 604 is fixedly arranged at the output end of the seventh cylinder. The third group of vibrating disks 602 is fixed on the third connecting plate 604. When in use, by sliding the vibrating disk 602 in the reducing pipe unit 4 through the driving part, on the one hand, it is convenient to disperse the material falling into the reducing pipe unit 4, and on the other hand, when sampling from above the reducing pipe unit 4 using the sampling drill 3 for reducing, it can avoid causing obstruction to it and improve the sampling effect.

[0042] Refer to Figure 5 and Figure 6 , a rubber scraper is fixedly arranged in the chute 402, and the rubber scraper is abutted against the inner wall of the vibrating disk 602. When in use, by arranging the rubber scraper in the chute 402, when the vibrating disk 602 slides out of the reducing pipe unit 4, the rubber scraper can scrape off the material remaining on the vibrating disk 602 cleanly, reducing the pollution caused by the residual material on the vibrating disk 602 and improving the use effect.

[0043] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6, the sample unloading and sealing unit includes multiple groups of fixed seats 401, which are respectively fixedly arranged on the fixed frame 1. There are two to ten groups of fixed seats 401. Here, we preferably choose three groups. Install the three groups of reduced diameter pipe units 4 on the corresponding fixed seats 401 respectively. That is to say, install multiple groups of reduced diameter pipes separately and detachably in the holes on the corresponding fixed seats 401. The reduced diameter pipes can be fixed on the fixed seats 401 by bolts, buckles or hoop. Preferably, it is a hoop, which is convenient for installation and disassembly, has reliable fixation, is convenient for replacing the reduced diameter pipes, can realize modular switching of the pipe diameter of the reduced diameter pipes, and ensure the minimum sample amount of concentrate reduction when the sampling amount is low. And at the bottom of each reduced diameter pipe, a bottom cover 801 is rotatably arranged. A third clamp is fixedly arranged on the reduced diameter pipe, and a lever cylinder 8 is fixedly arranged on the third clamp. One end of the bottom cover 801 is fixedly connected to the pressing plate of the lever cylinder 8, and a second gasket is fixedly arranged on the bottom cover 801. The materials of the second gasket and the first gasket are nylon, polyurethane or red rubber. Here, we preferably choose red rubber. Red rubber gets its name because of its red color. It is outstanding in oil resistance, heat resistance and wear resistance, and has good elasticity and recovery ability. The bottom end face of the reduced diameter pipe is abutted against the second gasket. During use, by rotatably arranging a bottom cover 801 at the bottom of the reduced diameter pipe, it is convenient to discharge the residual materials in the reduced diameter pipe. And a second gasket is fixedly arranged on the bottom cover 801, which can not only improve the sealing effect between the bottom cover 801 and the bottom end face of the reduced diameter pipe, reduce the loss of moisture in the material, but also due to the high strength and flexibility of red rubber, when the sampling probe 3 for reduced diameter sampling is inserted into the reduced diameter pipe for sampling, high-precision and low-error full-pipe reduced diameter sampling can be achieved.

[0044] Referring to Figure 5 and Figure 6 , the sealing cover unit includes an upper cover 702 arranged at the top of the reduced diameter pipe unit 4. A first clamp 7 is fixedly arranged on the reduced diameter pipe, and a first cylinder 701 is rotatably arranged on the first clamp 7. A second clamp 703 is fixedly arranged on the reduced diameter pipe, and an extension plate is fixedly arranged on the outer wall of the upper cover 702. One end of the extension plate close to the upper cover 702 is rotatably connected to the second clamp 703, and the other end of the extension plate far from the upper cover 702 is rotatably connected to the output end of the first cylinder 701. A first gasket is fixedly arranged in the upper cover 702, and the top of the reduced diameter pipe abuts against the first gasket. During use, by arranging an upper cover 702 on the reduced diameter pipe, it is convenient to cover the top of the reduced diameter pipe, improve the protection effect, reduce the cross-contamination between materials, and a first gasket is fixedly arranged on the upper cover 702, which can improve the sealing effect between the upper cover 702 and the reduced diameter pipe, keep the moisture in the concentrate powder in the reduced diameter pipe from losing, and ensure the accuracy of the sample moisture index during the reduced diameter sampling process.

[0045] A method for reducing ore samples for robot sampling of concentrate powder further includes the following steps:

[0046] Step 1: Feed the ore sample to be reduced into the reduction pipe unit 4 by vibrating and discharging the sample.

[0047] Quantitatively sample the ore in the transport vehicle by driving the sampling drill 3 with a robot, and then feed the ore sample to be reduced into the reduction pipe unit 4 by vibrating and discharging the sample.

[0048] Step 2: Vibrate and disperse the material for feeding to make the ore sample entering the reduction pipe unit 4 vibrate and form a layered pile, and the sample discharging and sealing unit and the sealing cover unit automatically seal both ends of the reduction pipe unit 4.

[0049] Feed the ore sample taken in the sampling drill 3 into the reduction pipe unit 4, and through vibration, disperse the ore samples in the same sampling drill 3, and relatively densely accumulate them in the reduction pipe unit 4. The sampling drill 3 samples multiple times, and a layered ore sample to be reduced is obtained in the reduction pipe unit 4. Moreover, before feeding, the sample discharging and sealing unit seals the bottom of the reduction pipe. During the feeding process, the sealing cover unit opens, and after the feeding is completed, the sealing cover unit closes.

[0050] Step 3: The robot automatically reduces and samples from the reduction pipe unit 4 to achieve representative reduction of the ore sample.

[0051] Drive the reduction sampling drill 3 into the reduction pipe unit 4 with a robot to sample the ore sample to be reduced in the reduction pipe unit 4, achieving automatic reduction of the ore sample.

[0052] In the present invention, during use, the ore samples taken by the sampling drill 3 driven by the automatic sample discharging robot are relatively evenly stacked into the reduction pipe unit 4. After the sampling robot completes the sampling tasks for one batch, one shift or one day of the corresponding reduction pipe unit 4, the ore samples in the reduction pipe unit 4 are reduced by the reduction sampling drill 3, achieving the purpose of automatic ore sample reduction and pollution-free reduction. Moreover, the reduction pipe unit 4 is designed with a thick-walled pipe made of wear-resistant and non-ore-sticking polymer material as the main body. The pipe diameter is determined according to each concentrate variety sampled by the robot, each sampling batch or the sampling quantity per shift. For example, taking the sampling of iron concentrate powder, 20 trucks per batch, 3 drills per truck, and the inner diameter of the sampling drill 3 being 24 mm as an example, the inner diameter of the reduction pipe unit 4 is selected as 200 mm and the height is 1500 mm. After one batch of sampling is completed, the stacking height of the ore samples in the reduction pipe unit 4 is approximately between 1000 mm and 1200 mm. The robot reduces the samples twice, reducing the sampled and reduced sample to approximately 1 liter, and the remaining reduced sample is approximately 30 liters, with a reduction ratio of nearly 30:1. Further, according to the actual working conditions of the application site of the robot sampling of concentrate powder, the size, data and layout of the reduction pipe unit 4 can be specifically designed. Taking iron ore as an example, when the sampled and reduced concentrate powder is a single iron concentrate, there are at most 10 target customers per day. Among the 10 customers, at least 2 trucks and at most 20 trucks of concentrate powder are sold per day. Therefore, according to the actual technical evaluation, it is necessary to design the reduction pipe unit 4 with a layout of 3 rows and 4 columns. The maximum inner diameter of the reduction pipe unit 4 is 160 mm, and the minimum is 80 mm. The reduction pipe unit 4 with an inner diameter of 80 mm corresponds to the target customers who sell 2 to 3 trucks of concentrate powder per day. When the robot sampling drill 3 reduces the samples, by increasing the number of reduction sampling times, the minimum amount of inspected concentrate is ensured.

[0053] During the sampling and discharging process of the robot-driven sampling drill 3, automatic sample discharging at two stations is provided for the sampling drill 3. The vibrator 5 is driven by the moving part to switch back and forth between the sample discharging position and the idle standby position. When one group of sampling drills 3 is in the idle standby position, the robot picks up, samples and places the sampling drill 3; when the sampling drill 3 is in the working position, the vibrator 5 moves above the sampling drill 3 to vibrate and discharge the sample. The working time of the vibratory discharging is determined according to the properties of the concentrate powder such as moisture, viscosity, specific gravity, etc., in combination with the actual on-site calibration situation, with the criterion of clean sample discharging. The two groups of sampling drills 3 cycle through the sample discharging work until the corresponding reduction pipe unit 4 completes the sampling and stacking for 1 type, 1 batch, 1 shift or 1 day.

[0054] After the reduction pipe unit 4 completes the tasks of concentrate powder sampling and stacking for one batch, through the robot sampling system, concentrate powder reduction sampling is carried out in the reduction pipe unit 4. The reduction sampling probe 3 can be customized according to the amount of the test sample required. The number of reduction sampling times is set to 2 under standard conditions. When the stacking quantity in the reduction pipe unit 4 is relatively small, the reduction sampling times can be increased to 3 to 4 times. When conditions permit, the reduction sampling probe 3 and the ore sample sampling probe 3 are separated separately to reduce the risk of ore sample contamination.

[0055] In summary, the robot places the sampling probe 3 that has taken the ore sample on the sample unloading point of the sample unloading device, that is, on the fixed column 202 of the movable frame 2. The sample unloading device determines the specific sample unloading point according to the control system, and confirms which reduction pipe the retrieved ore sample corresponds to for reduction sampling and at which working station to unload the sample. The control system automatically locates to the set sample unloading point; the reduction device controls the corresponding vibrator 5 and locates to the corresponding sample unloading point, and the vibrating sample unloading device starts to work. The ore sample in the sampling probe 3 starts to be automatically unloaded. At this time, the dispersing device of the reduction pipe synchronously conducts the dispersing work, and the ore sample evenly falls and accumulates layer by layer in the reduction pipe. After each or each vehicle of sampling is completed, the upper cover 702 above the reduction pipe automatically closes to prevent water loss. After one batch of sampling is completed, the robot conducts reduction sampling through the reduction sampling probe 3. After the reduction sampling is completed, the remaining ore sample in the reduction pipe is discharged by opening the sample unloading sealing unit at the bottom of the reduction pipe. Appropriately vibrate the reduction pipe through the vibration dispersing unit to achieve low-pollution emptying of the reduction pipe and complete the entire reduction sampling action.

[0056] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A device for reducing the sample of ore concentrate for robot sampling, including a fixed frame (1), characterized in that, There are multiple groups of reducing pipe units (4) evenly distributed on the fixed frame (1). A sample discharging sealing unit and a sealing cover unit are respectively arranged at the bottom and top of the reducing pipe unit (4). It further includes: A vibration sample discharging device is arranged on the top surface of the fixed frame (1), and the vibration sample discharging device cooperates with the reducing pipe unit (4); A vibration dispersing unit is arranged at the feeding end of the reducing pipe unit (4). When feeding the reducing pipe unit (4), the vibration dispersing unit vibrates the ore sample flowing through; The vibration sample discharging device includes a movable frame (2) that freely moves on the top surface of the fixed frame (1). A fixed column (202) is fixedly arranged on the movable frame (2). Multiple groups of sampling needles (3) are arranged on the fixed column (202). A vibrator (5) is arranged on the movable frame (2), and the vibrator (5) cooperates with the sampling needles (3); The vibration dispersing unit includes at least two groups of vibrating discs (602). Multiple groups of sliding grooves (402) are formed on the side wall of the reducing pipe unit (4). One end of the vibrating disc (602) extends into the reducing pipe unit (4) through the sliding groove (402), and a pneumatic vibrator is fixedly arranged at the other end of the vibrating disc (602). A driving part for driving the sliding of the vibrating disc (602) is arranged on the fixed frame (1); The vibrating disc (602) is inclined, the vibrating discs (602) are respectively located on both sides of the reducing pipe unit (4), and the vibrating discs (602) are distributed up and down; The sample discharging sealing unit includes multiple groups of fixed seats (401) respectively fixedly arranged on the fixed frame (1). Multiple groups of the reducing pipe units (4) are respectively detachably arranged on the corresponding fixed seats (401). A bottom cover (801) is rotatably arranged at the bottom of the reducing pipe unit (4). A third clamp is fixedly arranged on the reducing pipe unit (4). A lever cylinder (8) is fixedly arranged on the third clamp. One end of the bottom cover (801) is fixedly connected to the pressing plate of the lever cylinder (8), and a second sealing gasket is fixedly arranged on the bottom cover (801). The bottom of the reducing pipe unit (4) abuts against the second sealing gasket.

2. The ore sample reduction device for robot sampling of concentrated ore powder according to claim 1, wherein, A cross beam (103) is slidably arranged on the fixed frame (1). First slide rails (101) are fixedly arranged at the top of both sides of the fixed frame (1). Both ends of the cross beam (103) are fixedly connected to the output ends of the first slide rails (101). A gear belt (102) for driving the sliding of the cross beam (103) is arranged on the fixed frame (1). An electric sliding table (201) is fixedly arranged on the top of the cross beam (103), and the bottom of the movable frame (2) is fixedly connected to the output end of the electric sliding table (201).

3. The ore sample reduction device for robotic sampling of concentrate powder according to claim 1, characterized in that, The material of the reducing pipe unit (4) is ultra-high molecular weight polyethylene.

4. The ore sample reduction device for robot sampling of concentrated ore powder according to claim 1, characterized in that, The driving part includes a first fixing plate (6) fixedly arranged on the fixed frame (1). A first connecting plate (601) is slidably arranged on the first fixing plate (6) through a second cylinder. The other end of one group of the vibrating discs (602) is fixedly arranged on the first connecting plate (601).

5. A sample reduction device for robot sampling of concentrate powder according to claim 1, characterized in that, The sealing cover unit includes an upper cover (702) disposed at the top of the reduced diameter pipe unit (4). A first clamp (7) is fixedly provided on the reduced diameter pipe unit (4). A first cylinder (701) is rotatably provided on the first clamp (7). A second clamp (703) is fixedly provided on the reduced diameter pipe unit (4). An extension plate is fixedly provided on the outer wall of the upper cover (702). The extension plate is rotatably connected to the second clamp (703). One end of the extension plate away from the upper cover (702) is rotatably connected to the output end of the first cylinder (701). A first sealing gasket is fixedly provided inside the upper cover (702). The top of the reduced diameter pipe unit (4) abuts against the first sealing gasket.

6. A method for sample reduction of ore samples for robot sampling of concentrated ore powder, which is applied to the device for sample reduction of ore samples for robot sampling of concentrated ore powder according to any one of claims 1 to 5, characterized in that, It includes the following steps: Step 1: Put the ore sample to be reduced into the reduced diameter pipe unit (4) by vibrating sample unloading. Step 2: Vibrate and disperse the cloth to make the ore sample entering the reduced diameter pipe unit (4) vibrate and be layered and stacked. The sample unloading sealing unit and the sealing cover unit automatically seal both ends of the reduced diameter pipe unit (4). Step 3: The robot automatically takes a reduced sample from the reduced diameter pipe unit (4) to achieve representative reduction of the ore sample.

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