Ore sample division device and method for sampling of concentrate powder robot

Abstract

The invention discloses an ore sample division device and method for sampling of a concentrate powder robot, and belongs to the technical field of ore sample division. The device comprises a fixed frame, a plurality of groups of tube shrinkage and separation units are distributed on the fixed frame at equal intervals, and a vibration sample unloading device is arranged on the top surface of the fixed frame; a group of vibration scattering units are correspondingly arranged at the feeding end of the tube shrinkage and separation unit, and when feeding is carried out on the tube shrinkage and separation unit, the vibration scattering units vibrate ore samples flowing through the tube shrinkage and separation unit; the whole division sampling action is achieved through the division pipe unit, the division pipe vibration scattering unit, the division pipe bottom sample unloading sealing unit, the division pipe top sealing cover unit and the vibration sample unloading device, and the vibration scattering unit can make ore samples evenly fall into the division pipe to be stacked layer by layer; and when the ore samples are discharged, the vibration scattering unit properly causes the shrinkage tube to vibrate, so that the shrinkage tube is emptied in a low-pollution manner, the mutual pollution of the ore samples is reduced, and the shrinkage representativeness of the ore samples is ensured.

Description

Technical Field

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

[0002] The application of automatic sampling of concentrate powder of metals such as iron, copper, lead, zinc, gold, molybdenum, nickel, and titanium has received more and more attention, especially the application of robots, which has put forward higher technical expectations and requirements for concentrate powder sampling. Mineral sample reduction is an important part of concentrate powder sampling.

[0003] The existing automatic sample reduction technology makes it difficult for the automatic sampling equipment to handle the problem of concentrate powder stickiness when the concentrate powder has a large amount of moisture and high viscosity during the sampling process. This easily causes sampling contamination problems, and the problem of sample contamination before and after sample reduction cannot be solved in time, and the representativeness of the reduction is also limited. Therefore, the invention of a sample reduction device that is equipped with a robot automatic sampling system for concentrate powder and can ensure the representativeness of the sample reduction and ensure that the sample is not contaminated is of great significance for realizing automatic sampling of concentrate powder, promoting 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 in the prior art that the concentrate powder has high viscosity and is not easy to feed, resulting in sampling contamination before and after the ore sample is reduced, and to propose a ore sample reduction device and method for robot sampling of concentrate powder.

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

[0006] A sample reduction device for robot sampling of concentrate powder comprises a fixed frame, on which a plurality of groups of reduction pipe units are evenly distributed, and a sample unloading sealing unit and a sealing cover unit are respectively provided at the bottom and the top of the reduction pipe unit, and further comprises: a vibration sample unloading device is provided on the top surface of the fixed frame, and the vibration sample unloading device cooperates with the reduction pipe unit; a group of vibration break-up units are provided at the feeding end of the reduction pipe unit, and when feeding into the reduction pipe unit, the vibration break-up unit vibrates the ore sample flowing through.

[0007] In order to facilitate vibration unloading, preferably, the vibration unloading device includes a movable frame that can move freely on the top surface of the fixed frame, a fixed column is fixedly arranged on the movable frame, a plurality of 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 pin.

[0008] In order to facilitate the movement of the movable frame on the fixed frame, further, a cross beam is slidably arranged on the fixed frame, a first slide rail is fixedly arranged on the top of both sides of the fixed frame, both ends of the cross beam are respectively fixedly connected to the output ends of the first slide rail, a gear belt for driving the cross beam to slide is arranged on the fixed frame, and an electric slide 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.

[0009] In order to reduce the adhesion of the ore sample in the reduction tube, preferably, the reduction tube unit is made of ultra-high molecular weight polyethylene.

[0010] Preferably, the vibration breaking-up unit comprises at least two groups of vibration disks, a plurality of slide grooves are provided on the side wall of the reduction tube unit, one end of the vibration disk passes through the slide groove and extends into the reduction tube unit, and a pneumatic vibrator is fixedly provided at the other end of the vibration disk, and a driving part for driving the vibration disk to slide is provided on the fixed frame.

[0011] Furthermore, the vibration disk is arranged obliquely, and the vibration disk is respectively located on both sides of the shrinkage pipe unit, and the vibration disk is distributed up and down.

[0012] Furthermore, the driving part includes a first fixing plate fixedly arranged on the fixing frame, a first connecting plate is slidably arranged on the first fixing plate through a second cylinder, and the other end of a group of vibration plates is fixedly arranged on the first connecting plate.

[0013] Preferably, the sample unloading sealing unit includes multiple groups of fixing seats, which are respectively fixed on the fixing frame, and multiple groups of the reduction tube units are respectively disassembled and set on the corresponding fixing seats, and a bottom cover is rotatably arranged on the bottom of the reduction tube unit, a third clamp is fixedly arranged on the reduction tube unit, a lever cylinder is fixedly arranged on the third clamp, one end of the bottom cover is fixedly connected to the pressure plate of the lever cylinder, and a second sealing gasket is fixedly arranged on the bottom cover, and the bottom of the reduction tube unit is against the second sealing gasket.

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

[0015] In another aspect, the present invention provides a method for reducing the sample size of a concentrate powder by a robot, comprising the following steps:

[0016] Step 1: Place the ore sample to be reduced into the reduction pipe unit by vibrating the sample unloading;

[0017] Step 2: The material is dispersed by vibration, so that the ore sample entering the shrinking pipe unit is vibrated and stacked in layers, and the sample unloading sealing unit and the sealing cover unit automatically seal the two ends of the shrinking pipe unit;

[0018] Step 3: The robot automatically takes samples from the reduction pipe unit to achieve representative reduction of the mineral samples.

[0019] Compared with the prior art, the present invention provides a ore sample reduction device for robot sampling of concentrate powder, which has the following beneficial effects:

[0020] 1. The ore sample reduction device for the concentrate powder robot sampling has a vibration breaking unit in the reduction pipe, which can not only make the ore sample fall evenly to the reduction pipe and accumulate layer by layer, but also can appropriately cause the reduction pipe to vibrate through the vibration breaking unit when discharging the ore sample, thereby reducing the residue of high-viscosity materials in the reduction pipe, realizing low-pollution emptying of the reduction pipe, reducing the problem of mutual contamination of ore samples, and ensuring the representativeness of the ore sample reduction;

[0021] 2. The ore sample reduction device for the concentrate powder robot sampling is provided with a vibration plate in the reduction pipe. When the sampling rod transports the material box into the reduction pipe, due to the structure of the sampling rod and the viscosity of the material, the material will enter the reduction pipe in the form of strips or blocks. At this time, the material falls on the vibration breaking unit, which can break it up and make it as evenly filled in the reduction pipe as possible, which helps to improve the storage capacity of the reduction pipe.

[0022] 3. The ore sample reduction device for robot sampling of concentrate powder has an upper cover arranged on the reduction tube, which is convenient for sealing the top of the reduction tube, thereby improving the protection effect and reducing the cross contamination between materials. In addition, a first sealing gasket is fixedly arranged on the upper cover, which can improve the sealing effect between the upper cover and the reduction tube, keep the moisture of the concentrate powder in the reduction tube from being lost, and ensure the accuracy of the moisture index of the sample during the reduction sampling process.

[0023] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The present invention arranges a vibration breaking unit in the reduction pipe, which can not only make the mineral sample fall evenly into the reduction pipe and accumulate layer by layer, but also can cause the reduction pipe to vibrate appropriately through the vibration breaking unit when discharging the mineral sample, thereby reducing the residue of high-viscosity materials in the reduction pipe, realizing low-pollution emptying of the reduction pipe, reducing the problem of mutual contamination of mineral samples, and ensuring the representativeness of the reduction of mineral samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The structure of the ore sample reduction device for robot sampling of concentrate powder proposed by the present invention is shown in FIG. Figure 1 ;

[0025] Figure 2 The structure of the ore sample reduction device for robot sampling of concentrate powder proposed by the present invention is shown in FIG. Figure 2 ;

[0026] Figure 3 The structure of the ore sample reduction device for robot sampling of concentrate powder proposed by the present invention is shown in FIG. Figure 3 ;

[0027] Figure 4 This is a schematic structural diagram of an active frame of a ore sample reduction device for robot sampling of concentrate powder proposed by the present invention;

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

[0029] Figure 6 The present invention provides a schematic structural diagram of a vibrating plate of a ore sample reduction device for robot sampling of concentrate powder.

[0030] In the figure: 1. fixed frame; 101. first slide rail; 102. gear belt; 103. crossbeam; 2. movable frame; 201. electric slide; 202. fixed column; 3. sampling rod; 4. contraction tube unit; 401. fixed seat; 402. slide groove; 5. vibrator; 501. longitudinal moving seat; 502. transverse moving seat; 503. vertical moving seat; 6. first fixed plate; 601. first connecting plate; 602. vibration plate; 603. second connecting plate; 604. third connecting plate; 605. second fixed plate; 7. first clamp; 701. first cylinder; 702. upper cover; 703. second clamp; 8. lever cylinder; 801. bottom cover. DETAILED DESCRIPTION

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

[0032] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are 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 cannot be understood as a limitation on the present invention.

[0033] Example:

[0034] Reference Figure 1-Figure 6A ore sample reduction device for robot sampling of concentrate powder comprises a fixed frame 1, on which a plurality of groups of reduction pipe units 4 are evenly distributed, and the bottom and top of the reduction pipe units 4 are respectively provided with a sample unloading sealing unit and a sealing cover unit, and the reduction pipe units 4 are provided with two to ten groups. Here, we preferably use three groups according to actual use conditions, and each group of reduction pipe units 4 is composed of a plurality of reduction pipes. Here, we preferably use four reduction pipes for each group of reduction pipe units 4, which can place and store the same or different batches or time. Materials can be stored in categories to improve the use effect. The shrinking and dividing pipe unit 4 is made of wear-resistant and non-sticky polymer materials, such as ultra-high molecular weight polyethylene or polytetrafluoroethylene or polypropylene, preferably ultra-high molecular weight polyethylene, which has extremely high wear resistance and smooth surface. It is not easy to adhere to ore and other materials, and is also resistant to acid and alkali and chemical corrosion. It ensures that the concentrate powder with high moisture content and high viscosity is not easy to stick in the ore sample shrinking and dividing pipe unit 4. Combined with the automatic residual sample emptying design of the bottom sample arrangement, the ore samples of different batches and different types are not contaminated between the shrinking and dividing of ore samples. It also includes: a vibration unloading device is arranged on the top surface of the fixed frame 1, and the vibration unloading device cooperates with the shrinking tube unit 4. When in use, when the mineral sample is put into the shrinking tube unit 4, the vibration unloading device can generate vibration, so that the mineral sample can quickly and completely enter the shrinking tube unit 4; a vibration breaking unit is correspondingly arranged at the feeding end of the shrinking tube unit 4. When feeding into the shrinking tube unit 4, the vibration breaking unit vibrates the mineral sample flowing through, so that the mineral sample entering the shrinking tube unit 4 can be stacked in layers.

[0035] A movable frame 2 is freely movable on the top surface of the fixed frame 1, and a sampling rod 3 is arranged on the movable frame 2. The sampling rod 3 is a prior art. When in use, the sampling rod 3 can be grabbed by a robot to sample the material and place the sampling rod 3 on the movable frame 2. A vibrator 5 is installed on the movable frame 2 through a moving part. The vibrator 5 cooperates with the sampling rod 3. During use, the movable frame 2 moves on the fixed frame 1, and the sampling rod 3 can be brought to the corresponding shrinking and dividing pipe unit 4 to feed the material into the shrinking and dividing pipe unit 4. At this time, the moving part is started to drive The vibrator 5 moves to the top of the sampling chisel 3, and a sample unloading hammer is fixedly provided at the output end of the vibrator 5, and the bottom of the sample unloading hammer is pressed against the top of the sampling chisel 3. Under the action of the vibrator 5 and the sample unloading hammer, not only can the material in the sampling chisel 3 be discharged quickly, but also the residue of high-viscosity material in the sampling chisel 3 can be reduced, and it can be discharged as cleanly as possible within a certain time, thereby reducing the problem of mutual contamination of ore samples, ensuring the representativeness of ore sample reduction, and realizing automatic sampling of concentrate powder. This is of great significance for promoting unmanned and intelligent sampling of concentrate powder, and for promoting the industrial upgrading of robot sampling of concentrate powder. In addition, a vibration dispersing unit is provided at the feeding end of each contraction tube unit 4. By providing the vibration dispersing unit at the feeding end of the contraction tube unit 4, when the sampling rod 3 feeds the material into the contraction tube unit 4, the material falls on the vibration dispersing unit, and the vibration dispersing unit vibrates the mineral sample flowing through to disperse it. That is to say, when the sampling rod 3 feeds the material into the contraction tube unit 4, due to the structure of the sampling rod 3 and the viscosity of the material, the material will enter the contraction tube unit 4 in the form of strips or blocks. At this time, the material falls on the vibration dispersing unit, which can be dispersed to make it evenly filled in The shrinking and dividing tube unit 4 not only helps to improve the storage capacity of the shrinking and dividing tube unit 4, but also allows the ore samples taken multiple times to be layered and stacked in sequence in the shrinking and dividing tube unit 4, so that the ore samples of the same variety or the same batch are layered in the shrinking and dividing tube unit 4 according to the order in which the sampling rod 3 is put. When the shrinking and dividing sampling rod 3 is inserted into the shrinking and dividing tube unit 4 for sampling, layered and shrinking sampling can be achieved. The robot drives the shrinking and dividing sampling rod 3 to automatically shrink and sample in the sampling shrinking and dividing tube unit 4, thereby ensuring the representativeness and accuracy of the reduction of the concentrate powder, and is not affected by the moisture content, viscosity, etc. of the ore sample, thereby improving the use effect.

[0036] Reference Figure 1-Figure 4The vibrating unloading device includes a movable frame 2 that moves freely on the top surface of the fixed frame 1, a fixed column 202 is fixedly arranged on the movable frame 2, a plurality of groups of sampling pins 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 pin 3, wherein a plurality of groups of through holes matching the sampling pins 3 are provided on the fixed column 202, and the through holes are provided with two to four groups, preferably two groups, that is, two groups of sampling pins 3 can be placed at the same time. When in use, when the No. 1 sampling pin 3 is unloading, the robot can take the No. 2 sampling pin 3 for sampling, and reinstall it on the fixed column 20 after the sampling is completed. 2, at this time, the material in the No. 1 sampling rod 3 is discharged cleanly, and the vibrator 5, under the action of the moving part, moves to the top of the No. 2 sampling rod 3 to help it to unload the material, and the robot can take the No. 1 sampling rod 3 for sampling, and continuously circulate, which can realize fast and continuous sampling, improve the use effect, and slide the sampling rod 3 into one of the groups of through holes, and the moving part is arranged on the movable frame 2. By arranging a fixed column 202 on the movable frame 2, it is convenient to limit the sampling rod 3, and the vibrator 5 can be moved on the movable frame 2 through the moving part to realize the change of position, which is convenient for vibrating and unloading the two groups of sampling rods 3.

[0037] Reference Figure 4 Here, according to the actual use, we design the moving parts to be fixedly provided with a longitudinal moving seat 501 on the movable frame 2, and a transverse moving seat 502 is fixedly provided at the output end of the longitudinal moving seat 501. Here, we fix a second slide rail on the longitudinal moving seat 501, fix the transverse moving seat 502 at the output end of the second slide rail, and fix a third cylinder for driving the transverse moving seat 502 to slide on the longitudinal moving seat 501. Similarly, a third slide rail and a fourth slide rail are respectively provided 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 horizontal moving seat 502, and a fifth cylinder for driving the vibrator 5 to rise and fall is fixedly arranged on the vertical moving seat 503. The vertical moving seat 503 is fixedly arranged at the output end of the horizontal moving seat 502, and the housing of the vibrator 5 is fixedly connected to the output end of the vertical moving seat 503. When in use, the vibrator 5 is driven to move accordingly by using a moving part on the movable frame 2. According to the specific usage situation, it can be moved to the top of the corresponding sampling rod 3 in turn to help it vibrate and unload the material, thereby improving the use effect.

[0038] Reference Figure 1-Figure 4A crossbeam 103 is slidably arranged on the fixed frame 1. Here, we symmetrically arrange two groups of crossbeams 103, and the two groups of crossbeams 103 are fixedly connected by connecting rods. First slide rails 101 are fixedly arranged on the top of both sides of the fixed frame 1, and the two ends of the crossbeam 103 are respectively fixedly connected to the output ends of the first slide rails 101, and a gear belt 102 for driving the crossbeam 103 to slide is arranged on the fixed frame 1, and an electric slide 201 is fixedly arranged on the top of the crossbeam 103. The sliding direction of the crossbeam 103 and the sliding direction of the movable frame 2 are perpendicular to each other in space, and the bottom of the movable frame 2 is fixedly connected to the output end of the electric slide 201. When in use, by driving the movable frame 2 with the gear belt 102 and the electric slide 201, the movable frame 2 can move the sampling rod 3 to the corresponding reduction pipe unit 4 to realize the loading of the reduction pipe unit 4.

[0039] Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 Here, we make the vibration breaking unit include at least two groups of vibration disks 602, here, we preferably have three groups of vibration disks 602, and multiple groups of slide grooves 402 are opened on the side wall of the contraction pipe unit 4, and the slide grooves 402 are also preferably three groups. The three groups of vibration disks 602 are respectively slidably set in the corresponding slide grooves 402, and one end of the vibration disk 602 passes through the slide groove 402 and extends into the contraction pipe unit 4, and a pneumatic vibrator is fixedly set at the other end of the vibration disk 602, and the pneumatic vibrator is used to vibrate and break up the breaking vibration disk 602, A driving part for driving the vibration plate 602 to slide is arranged on the fixed frame 1. When in use, the vibration plate 602 is slidably arranged in the contraction tube unit 4. When the material in the sampling rod 3 falls on the vibration plate 602, under the action of the vibrator, the vibration plate 602 can be driven to vibrate and break up the material, so that it is dispersed and falls on the bottom of the contraction tube unit 4. In addition, the vibration plate 602 is arranged in three groups in an upper and lower state, which can further improve the dispersion effect, help to enrich the material in the contraction tube unit 4, and improve the use efficiency of the contraction tube unit 4.

[0040] Reference Figure 5 and Figure 6Here, we set the vibration plate 602 at an angle of 2° to 10°, preferably 4°. By setting the vibration plate 602 at an angle, it is convenient for the material to fall to the bottom of the contraction pipe unit 4, and selecting a smaller angle of inclination can extend the time the material stays on the vibration plate 602, so that it can be broken up as much as possible. The vibration plates 602 are respectively located on both sides of the contraction pipe unit 4, and the vibration plates 602 are distributed up and down, that is, the discharge port of the top group of vibration plates 602 is above the second group of vibration plates 602, and the discharge port of the second group of vibration plates 602 is above the third group of vibration plates 602, which can achieve multi-stage vibration breaking up and further improve the dispersion effect.

[0041] Reference Figure 5 and Figure 6 Here, we design the driving part as a first fixed plate 6 fixedly arranged on the fixed frame 1, a first connecting plate 601 is slidably arranged on the first fixed plate 6 through the second cylinder, the other end of one group of vibration disks 602 is fixedly arranged on the first connecting plate 601, preferably the top group of vibration disks 602 is fixed on the first connecting plate 601, similarly, a second fixed plate 605 is fixedly arranged on the fixed frame 1, the first fixed plate 6 and the second fixed plate 605 are respectively located on both sides of the contraction branch unit 4, and then a sixth cylinder is fixedly arranged on the second fixed plate 605, and a sixth cylinder is fixedly arranged at the output end of the sixth cylinder. A second connecting plate 603 is fixedly provided, and the second group of vibration disks 602 are fixed on the second connecting plate 603. A seventh cylinder is fixedly provided on the first fixed plate 6, and a third connecting plate 604 is fixedly provided at the output end of the seventh cylinder, and the third group of vibration disks 602 are fixed on the third connecting plate 604. When in use, the vibration disk 602 is slidably set in the reduction tube unit 4 by the driving part. On the one hand, it is convenient to break up the materials falling into the reduction tube unit 4. On the other hand, when the reduction sampling rod 3 is used to take samples from the top of the reduction tube unit 4, it can avoid obstruction to it and improve the sampling effect.

[0042] Reference Figure 5 and Figure 6 A rubber scraper is fixedly arranged in the slide groove 402, and the rubber scraper is pressed against the inner wall of the vibration plate 602. When in use, by arranging the rubber scraper in the slide groove 402, when the vibration plate 602 slides out of the contraction pipe unit 4, the rubber scraper can scrape off the material remaining on the vibration plate 602, thereby reducing the pollution caused by the residual material on the vibration plate 602 and improving the use effect.

[0043] Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6The sample unloading sealing unit includes multiple groups of fixing seats 401, which are respectively fixed on the fixing frame 1. The fixing seats 401 are provided with two to ten groups. Here, we prefer three groups. The three groups of shrinkage pipe units 4 are respectively installed on the corresponding fixing seats 401. That is to say, the multiple groups of shrinkage pipes are respectively disassembled and arranged in the holes on the corresponding fixing seats 401. The shrinkage pipes can be fixed on the fixing seats 401 by bolts, buckles or hoops. Preferably, the hoops are convenient to assemble and disassemble, reliable to fix, and convenient to replace the shrinkage pipes. The modular switching of the diameter of the shrinkage pipes can be realized to ensure that the minimum sample amount of the concentrate shrinkage can be guaranteed when the sampling amount is low, and a bottom cover 801 is rotatably provided at the bottom of each shrinkage pipe, and a third clamp is fixedly provided on the shrinkage pipe, and a lever cylinder 8 is fixedly provided on the third clamp to connect one end of the bottom cover 801 with The pressure plate of the lever cylinder 8 is fixedly connected, and a second sealing gasket is fixedly arranged on the bottom cover 801. The second sealing gasket and the first sealing gasket are made of nylon, polyurethane or red rubber. Here, we prefer red rubber. Red rubber is named because of its red color. It has outstanding oil resistance, heat resistance and wear resistance, and has good elasticity and recovery ability. The bottom end face of the reduction tube is offset against the second sealing gasket. When in use, the bottom cover 801 is flipped at the bottom of the reduction tube to facilitate the discharge of residual materials in the reduction tube. The second sealing 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 reduction tube, but also reduce the loss of water in the material. Due to the high strength and flexibility of red rubber, when the reduction sampling rod 3 is inserted into the reduction tube for sampling, high-precision, low-error full-tube reduction sampling can be achieved.

[0044] Reference Figure 5 and Figure 6 The sealing cover unit includes an upper cover 702 arranged on the top of the reduction pipe unit 4, a first clamp 7 is fixedly arranged on the reduction pipe, a first cylinder 701 is rotatably arranged on the first clamp 7, a second clamp 703 is fixedly arranged on the reduction pipe, and an extension plate is fixedly arranged on the outer wall of the upper cover 702, the end of the extension plate close to the upper cover 702 is rotatably connected to the second clamp 703, and the 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 arranged in the upper cover 702, and the top of the reduction pipe is abutted against the first sealing gasket. When in use, by arranging the upper cover 702 on the reduction pipe, it is convenient to seal the top of the reduction pipe, improve the protection effect, and reduce cross contamination between materials. In addition, the first sealing gasket is fixedly arranged on the upper cover 702, which can improve the sealing effect between the upper cover 702 and the reduction pipe, keep the moisture of the concentrate powder in the reduction pipe from being lost, and ensure the accuracy of the moisture index of the sample during the reduction sampling process.

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

[0046] Step 1: Place the ore sample to be reduced into the reduction pipe unit 4 by vibrating the sample unloading;

[0047] The robot drives the sampling drill 3 to quantitatively sample the mineral material in the transport vehicle, and then the mineral sample to be reduced is placed into the reduction pipe unit 4 through vibration unloading;

[0048] Step 2: The material is dispersed by vibration, so that the ore sample entering the shrinking and dividing pipe unit 4 is vibrated and stacked in layers, and the unloading sealing unit and the sealing cover unit automatically seal the two ends of the shrinking and dividing pipe unit 4;

[0049] The ore sample taken from the sampling rod 3 is put into the shrinking and dividing tube unit 4, and after vibration, the ore sample in the same sampling rod 3 is dispersed and relatively densely accumulated in the shrinking and dividing tube unit 4. The sampling rod 3 takes samples for many times, and the stratified ore sample to be shrunk and divided is obtained in the shrinking and dividing tube unit 4. Before putting, the sample unloading sealing unit seals the bottom of the shrinking and dividing tube. During the putting process, the sealing cover unit is opened, and after the putting is completed, the sealing cover unit is closed.

[0050] Step 3: The robot automatically takes samples from the shrinking pipe unit 4 to achieve representative shrinking of the ore sample;

[0051] The robot drives the reduction sampling rod 3 to be inserted into the reduction pipe unit 4 first, and samples the mineral sample to be reduced in the reduction pipe unit 4, so as to achieve automatic reduction of the mineral sample.

[0052] In the present invention, during use, the ore samples taken by the sampling rod 3 driven by the automatic unloading robot are relatively evenly stacked in the shrinking tube unit 4. When the sampling robot completes a batch, a shift or a day's sampling task of the corresponding shrinking tube unit 4, the ore samples in the sampling shrinking tube unit 4 are reduced by the reducing sampling rod 3, so as to achieve the purpose of automatic and pollution-free reduction of the ore samples. Moreover, the design of the shrinking tube unit 4 adopts a thick-walled tube made of a wear-resistant and non-sticky polymer material as the main body, and the tube diameter is determined according to the number of samples of each concentrate type, each sampling batch or each shift sampled by the robot. For example, taking the sampling of iron concentrate powder, 20 cars per batch, 3 sampling rods per car, and the inner diameter of the sampling rod 3 as an example, the inner diameter of the shrinking tube unit 4 is selected to be 200mm and the height is 1500mm. After a batch of sampling is completed, the stacking height of the ore samples in the shrinking tube unit 4 is approximately between 1000mm and 1200mm. The robot shrinks and samples twice, and the shrinking sample is approximately 1 The sample size is 100 liters, and the residual sample size is about 30 liters, with a reduction ratio of nearly 30:1. Furthermore, the size, data and layout of the reduction pipe unit 4 can be specifically designed according to the actual working conditions of the application site of the concentrate powder robot sampling. Taking iron ore as an example, when the concentrate powder sampled and reduced is a single iron concentrate, the sales target customers are at most 10 per day. Among the 10 customers, at least 2 trucks of concentrate powder are sold every day, and at most 20 trucks are sold. Therefore, according to the actual technical evaluation, it is necessary to design a 3-row and 4-column layout of the reduction pipe unit 4, and the inner diameter of the reduction pipe unit 4 is 160mm at most and 80mm at least. The reduction pipe unit 4 with an inner diameter of 80mm corresponds to the target customers who sell 2 to 3 trucks of concentrate powder every day. When the robot sampling rod 3 is reduced, the number of reduction sampling is increased to ensure the minimum inspection of the concentrate amount.

[0053] The robot drives the sampling rod 3 to provide two automatic unloading positions for the sampling rod 3 during the sampling and unloading process. The vibrator 5 switches back and forth between the unloading position and the idle standby position driven by the moving part. When one group of sampling rods 3 is in the idle standby position, the robot picks up, samples, and places the sampling rod 3; when the sampling rod 3 is in the working position, the vibrator 5 moves the top of the sampling rod 3 to vibrate and unload it. The working time of vibration unloading is determined according to the properties of the concentrate powder such as moisture, viscosity, specific gravity, etc., combined with the actual on-site calibration situation, and is based on clean unloading. The two groups of sampling rods 3 perform unloading work in a cycle until the corresponding shrinkage pipe unit 4 completes sampling of one type, one batch, one shift or one day of sampling and stacking.

[0054] After the reduction pipe unit 4 completes a batch of concentrate powder sampling and pile sampling tasks, the robot sampling system performs concentrate powder reduction sampling in the reduction pipe unit 4. The reduction sampling chisel 3 can be customized according to the amount of test samples required. The number of reduction sampling is set to 2 times in standard cases. When the number of pile samples in the reduction pipe unit 4 is relatively small, the number of reduction sampling can be increased to 3 to 4 times. When conditions permit, the reduction sampling chisel 3 is separated from the ore sampling chisel 3 to reduce the risk of ore sample contamination.

[0055] In summary, the robot places the sampling rod 3 after taking the ore sample on the unloading point of the unloading device, that is, on the fixed column 202 on the movable frame 2. The unloading device determines the specific unloading point according to the control system, confirms which shrinking tube the retrieved ore sample corresponds to for shrinking sampling, and at which station to unload the sample. The control system automatically locates to the set unloading point; the shrinking device controls the corresponding vibrator 5 to locate to the corresponding unloading point, and the vibrating unloading device starts to work, and the ore sample in the sampling rod 3 starts to be automatically unloaded. At this time, the breaking device of the shrinking tube performs the breaking work synchronously, and the ore sample falls evenly to the shrinking tube and accumulates layer by layer. After completing each sampling or each car sampling, the upper cover 702 above the shrinking tube is automatically closed to prevent water loss. After completing a batch of sampling, the robot performs reduction sampling through the reduction sampling pick 3. After completing the reduction sampling, the remaining ore samples in the reduction tube are discharged by opening the sample unloading sealing unit at the bottom of the reduction tube. The reduction tube is vibrated appropriately by the vibration breaking unit to achieve low-pollution emptying of the reduction tube, completing the entire reduction sampling action.

[0056] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A ore sample reduction device for robot sampling of concentrate powder, comprising a fixed frame (1), characterized in that: The fixed frame (1) has multiple groups of shrinkage pipe units (4) distributed equidistantly, and the bottom and top of the shrinkage pipe unit (4) are respectively provided with a sample unloading sealing unit and a sealing cover unit, and further comprises: A vibrating sample unloading device is arranged on the top surface of the fixed frame (1), and the vibrating sample unloading device cooperates with the shrinking and dividing pipe unit (4); A vibration breaking unit is arranged at the feeding end of the contraction pipe unit (4); when feeding into the contraction pipe unit (4), the vibration breaking unit vibrates the ore sample flowing through.

2. The ore sample reduction device for robot sampling of concentrate powder according to claim 1 is characterized in that: The vibrating sample unloading device comprises a movable frame (2) that moves freely on the top surface of the fixed frame (1), a fixed column (202) is fixedly arranged on the movable frame (2), a plurality of groups of sampling pins (3) are arranged on the fixed column (202), and a vibrator (5) is arranged on the movable frame (2), and the vibrator (5) cooperates with the sampling pins (3).

3. The ore sample reduction device for robot sampling of concentrate powder according to claim 2 is characterized in that: A crossbeam (103) is slidably arranged on the fixed frame (1), first slide rails (101) are fixedly arranged on the tops of both sides of the fixed frame (1), both ends of the crossbeam (103) are respectively fixedly connected to the output ends of the first slide rails (101), a gear belt (102) for driving the crossbeam (103) to slide is arranged on the fixed frame (1), an electric slide table (201) is fixedly arranged on the top of the crossbeam (103), and the bottom of the movable frame (2) is fixedly connected to the output end of the electric slide table (201).

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

5. The ore sample reduction device for robot sampling of concentrate powder according to claim 1, characterized in that: The vibration breaking unit comprises at least two groups of vibration disks (602), a plurality of slide grooves (402) are provided on the side wall of the shrinking tube unit (4), one end of the vibration disk (602) passes through the slide groove (402) and extends into the shrinking tube unit (4), and a pneumatic vibrator is fixedly provided at the other end of the vibration disk (602), and a driving part for driving the vibration disk (602) to slide is provided on the fixed frame (1).

6. The ore sample reduction device for robot sampling of concentrate powder according to claim 5, characterized in that: The vibration disk (602) is arranged in an inclined manner, and the vibration disk (602) is respectively located on both sides of the shrink pipe unit (4), and the vibration disk (602) is distributed up and down.

7. The ore sample reduction device for robot sampling of concentrate powder according to claim 6, characterized in that: The driving unit comprises a first fixing plate (6) fixedly arranged on the fixing frame (1), a first connecting plate (601) being slidably arranged on the first fixing plate (6) via a second cylinder, wherein the other end of a group of vibration plates (602) is fixedly arranged on the first connecting plate (601).

8. The ore sample reduction device for robot sampling of concentrate powder according to claim 1, characterized in that: The sample unloading sealing unit comprises a plurality of sets of fixing seats (401) which are respectively fixedly arranged on the fixing frame (1); a plurality of sets of the shrinking tube units (4) are respectively disassembled and arranged on the corresponding fixing seats (401); a bottom cover (801) is rotatably arranged at the bottom of the shrinking tube unit (4); a third clamp is fixedly arranged on the shrinking tube 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 pressure plate of the lever cylinder (8); a second sealing gasket is fixedly arranged on the bottom cover (801); and the bottom of the shrinking tube unit (4) abuts against the second sealing gasket.

9. The ore sample reduction device for robot sampling of concentrate powder according to claim 8, characterized in that: The sealing cover unit comprises an upper cover (702) arranged on the top of the reduction pipe unit (4), a first clamp (7) is fixedly arranged on the reduction pipe unit (4), a first cylinder (701) is rotatably arranged on the first clamp (7), a second clamp (703) is fixedly arranged on the reduction pipe unit (4), and an extension plate is fixedly arranged 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 arranged inside the upper cover (702), and the top of the reduction pipe unit (4) abuts against the first sealing gasket.

10. A method for reducing the sample size for robot sampling of concentrate powder, applied to the device for reducing the sample size for robot sampling of concentrate powder according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: placing the ore sample to be reduced into the reduction pipe unit (4) by vibrating the sample unloading; Step 2: the material is dispersed by vibration, so that the ore sample entering the shrinking pipe unit (4) is vibrated and stacked in layers, and the sample unloading sealing unit and the sealing cover unit automatically seal the two ends of the shrinking pipe unit (4); Step 3: The robot automatically takes samples from the shrinkage pipe unit (4) to achieve representative shrinkage of the ore sample.

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