Coke sample preparation system

Abstract

The utility model relates to the field of coke sample preparation, in particular to a coke sample preparation system which comprises a manipulator, and a primary quantitative division machine, a secondary quantitative division machine, a moisture sample division machine, a grinding machine, a jaw crusher, a roll crusher, a drying box, a raw material cache frame and a packaging machine which are arranged around the manipulator, and a gripper of the manipulator is connected with a clamp for clamping the tray. The coke sample preparation system disclosed by the utility model can be used for automatically completing the sample preparation of coke, is high in applicability, and can be used for adjusting the quantity according to actual conditions and requirements so as to meet different sampling standards.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of coke sample preparation. More specifically, the utility model relates to a coke sample preparation system. BACKGROUND

[0002] Coke is mainly used for ironmaking, and accurate analysis of its particle size, M40 and M10 is of great significance to guide blast furnace production, so it is necessary to analyze the coke sample. When manually preparing a sample, manual screening, drum and waste material are required, and manual crushing and pulverization are required during sample preparation. Not only is the labor intensity great, but also the noise is loud and the dust is easily inhaled, which affects the health of the operators. In the existing coke sample preparation system, due to the hard texture, rough surface, irregular shape and dust conductivity of coke, the variety of sample preparation is large, which leads to the problems of complex system, fast wear, easy blockage of channel, "bridge", jamming of screen hole, electrical fault and the like in the existing coke sample preparation system. SUMMARY

[0003] The utility model aims at providing a coke sample preparation system, which can automatically complete the sample preparation of coke and has strong applicability. The size of the divided quantity can be adjusted according to the actual situation and needs to meet different sampling standards.

[0004] In order to achieve these purposes and other advantages according to the utility model, a coke sample preparation system is provided, which comprises a manipulator, a first quantitative division machine, a second quantitative division machine, a moisture sample division machine, a grinding machine, a jaw crusher, a roller crusher, a drying box, a raw material buffer rack and a packaging machine which are arranged around the manipulator, and a clamp for clamping a material disc is connected to the gripper of the manipulator.

[0005] Further, in the coke sample preparation system, the raw material buffer rack comprises a box body and two lifting plates, the box body is open on one side, a waste sample inlet and a sample inlet are arranged on the upper end of the box body, the sample inlet is located below the discharge end of the sample conveying machine, a material pouring bin is connected to the waste sample inlet, a dust collection mechanism is arranged on the inner wall of the material pouring bin, a plurality of storage plates are arranged in the box body in an upper and lower interval, and the two lifting plates are located below the waste sample inlet and the sample inlet respectively and are connected to the uppermost storage plate through a lifting unit.

[0006] Further, in the coke sample preparation system, a sample conveying machine and a waste sample conveying machine are further included, the discharge end of the sample conveying machine extends above the raw material buffer rack, and the manipulator can drive the material disc to move above the sample inlet.

[0007] Further, the clamp comprises a mounting seat, a self-centering vice, two clamping jaws and a proximity switch, the self-centering vice is arranged on the mounting seat, the two clamping jaws are oppositely arranged and connected with the self-centering vice, and the proximity switch is arranged between the two clamping jaws.

[0008] Further, the mounting seat is provided with two straight guide rails parallel to the moving direction of the clamping jaws, two sliding blocks are slidably arranged on the straight guide rails, and the two sliding blocks are connected with the two clamping jaws, respectively.

[0009] Further, the first-stage quantitative dividing machine comprises a material falling bin, a conveying mechanism, a material falling hopper and a collecting mechanism, the feeding end of the conveying mechanism is connected with the discharging port of the material falling bin, the feeding port of the material falling hopper is connected with the discharging end of the conveying mechanism, and the upper end of the collecting mechanism is circumferentially provided with a plurality of fixing positions for placing material trays.

[0010] Further, the conveying mechanism comprises a belt conveyor, a weighing sensor, an adjusting plate and an adjusting unit, the belt conveyor is horizontally arranged below the discharging port of the material falling bin, two guide plates are arranged above the conveying belt of the belt conveyor at intervals, the upper end of the guide plate is connected with the material falling bin, and the lower end of the guide plate is slidably attached to the conveying belt of the belt conveyor; the weighing sensor is arranged on the belt conveyor, the adjusting plate is arranged above the conveying belt of the belt conveyor and connected with the adjusting unit arranged on the material falling bin, the adjusting unit drives the adjusting plate to move up and down to adjust the distance between the lower end of the adjusting plate and the conveying belt of the belt conveyor, and the material falling hopper is located below the discharging end of the conveying mechanism.

[0011] Further, the material falling hopper comprises a hopper body and a material falling pipe, the hopper body is provided with a guide groove at the upper end, the guide groove is located below the discharging end of the conveying mechanism, the upper end is connected with the discharging port of the hopper body, and the collecting mechanism drives the material tray in any fixing position to move below the material falling pipe.

[0012] Further, the material falling hopper further comprises a guide cylinder, a material blocking plate and a driving unit, the guide cylinder is coaxially arranged with the material falling pipe, the lower end of the material falling pipe extends into the guide cylinder, the lower end of the guide cylinder penetrates through the material blocking plate and is connected therewith, the driving unit is arranged on the material falling pipe and connected with the material blocking plate, and the driving unit drives the material blocking plate to move up and down.

[0013] Further, the coke sample preparation system, the lower hopper further comprises a telescopic cylinder, the telescopic cylinder is sleeved at the connecting place of the lower feeding pipe and the guide cylinder, and the upper and lower ends thereof are connected with the lower feeding pipe and the guide cylinder respectively.

[0014] The coke sample preparation system has the advantages that:

[0015] 1. The coke sample preparation system can automatically complete coke sample preparation, has strong applicability, and can adjust the quantity according to actual conditions and needs to meet different sampling standards.

[0016] 2. In the dividing device, the material is put into the blanking bin, sent into the lower hopper through the conveying mechanism, and then falls onto the collecting mechanism from the lower hopper, and finally collected through the tray placed on the collecting mechanism. The quality of the material conveyed into the lower hopper each time is controlled by the conveying mechanism to divide. The dividing quantity of the dividing device can be adjusted as needed, and the continuous dividing during coke sample preparation is suitable.

[0017] 3. The clamp drives the two oppositely arranged clamping jaws to approach or move away from each other through the self-centering vice, realizes the action of clamping or releasing the tray, and detects the opening and closing state of the clamp through the position detection mechanism arranged between the two clamping jaws.

[0018] Other advantages, objects and features of the present application will be apparent from the following description, and will be understood by those skilled in the art through study and practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The coke sample preparation system has the advantages that:

[0020] Figure 2 The structure diagram of the raw material buffer rack is shown in the present application.

[0021] Figure 3 The structure diagram of the manipulator is shown in the present application.

[0022] Figure 4 The structure diagram of the clamp is shown in the present application.

[0023] Figure 5 The structure diagram of the tray is shown in the present application.

[0024] Figure 6 The structure diagram of the first-stage quantitative dividing machine is shown in the present application.

[0025] Figure 7The structure schematic view of the first-stage quantitative subdividing machine after removing the shell;

[0026] Figure 8 The connection schematic view of the blanking bin and the conveying mechanism;

[0027] Figure 9 The connection schematic view of the conveying mechanism, the blanking hopper and the collecting mechanism;

[0028] Figure 10 The structure schematic view of the blanking hopper;

[0029] Figure 11 The structure schematic view of the collecting mechanism.

[0030] Among them, the sign represents:

[0031] Mechanical arm 1;Clamp 1-1;Mounting seat 1-2;Claw 1-33;Self-centering vice 1-4;Approach switch 1-55;Tray 1-6;Linear guide 1-7;Slide 1-8;First-stage quantitative subdividing machine 2;Blanking bin 2-1;Belt machine 2-2;Guide plate 2-3;Adjusting plate 2-4;Adjusting unit 2-5;Hopper body 2-6;Guide groove 2-7;Blanking pipe 2-8;Guide cylinder 2-9;Material blocking plate 2-10;Driving unit 2-11;Telescopic cylinder 2-12;Collecting mechanism 2-13;Second-stage quantitative subdividing machine 3;Moisture sample subdividing machine 4;Grinder 5;Jaw crusher 6;Roller crusher 7;Drying box 8;Raw material buffer rack 9;Box 9-1;Lifting plate 9-2;Lifting unit 9-3;Blanking bin 9-4;Dust suction mechanism 9-5;Storage plate 9-6;Packaging machine 10;Sample conveying machine 11;Waste sample conveying machine 12. DETAILED DESCRIPTION

[0032] The utility model makes further detailed description in combination with example, with reference to the description of the specification, can be implemented by the person skilled in the art.

[0033] It needs to be explained that, in the description of the utility model, the orientation or position relation indicated by the terms "transverse", "vertical", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it can not be understood as the limitation of the utility model.

[0034] As Figure 1As shown, the embodiment of the utility model provides a coke sample preparation system, including manipulator 1 and the first quantitative shrinkage machine 2, second quantitative shrinkage machine 3, moisture sample shrinkage machine 4, grinding machine 5, jaw crusher 6, pair of roller crusher 7, drying box 8, raw material buffer rack 9 and packing machine 10 that are arranged around the manipulator, like Figure 3 As shown, the gripper of the manipulator 1 is connected with the clamp 1-1 that clamps the material tray.

[0035] In this embodiment, the material tray 1-6 is moved between the first quantitative shrinkage machine 2, the second quantitative shrinkage machine 3, the moisture sample shrinkage machine 4, the grinding machine 5, the jaw crusher 6, the pair of roller crusher 7, the drying box 8, the raw material buffer rack 9 and the packing machine 10 by the manipulator 1, so as to realize the movement of the material between the above-mentioned devices. Specifically, when the above-mentioned coke sample preparation system works, the following steps are included:

[0036] S1, the manipulator 1 moves the material tray 1-6 loaded with the coke sample to the first quantitative shrinkage machine 2, performs the first quantitative shrinkage, obtains the first process sample, the moisture sample and the first waste sample, and the first process sample, the moisture sample and the first waste sample are respectively contained in the material tray 1-6.

[0037] S2, the manipulator 1 moves the material tray 1-6 loaded with the moisture sample obtained in S1 to the moisture sample shrinkage machine 4, performs the moisture sample shrinkage, obtains the moisture sample and the moisture waste sample, and part of the moisture sample is reserved as the moisture sample storage sample.

[0038] S3, the manipulator 1 moves the material tray 1-6 loaded with the first process sample obtained in S1 to the drying box 8 to perform the pre-drying, then the manipulator 1 moves the material tray 1-6 loaded with the dried first process sample to the jaw crusher 6 to perform the first crushing, and moves the material tray 1-6 loaded with the crushed material to the second quantitative shrinkage machine 3 to perform the first second quantitative shrinkage, obtains the second process sample and the second waste sample, and the second process sample and the second waste sample are respectively contained in the material tray 1-6.

[0039] S4, the manipulator 1 moves the material tray 1-6 loaded with the second process sample obtained in S3 to the pair of roller crusher 7 to perform the second crushing, and moves the material tray 1-6 loaded with the crushed material to the second quantitative shrinkage machine 3 to perform the second second quantitative shrinkage, obtains the third process sample and the third waste sample, and the third process sample and the third waste sample are respectively contained in the material tray 1-6; part of the third process sample is reserved as the assay sample storage sample, and the remaining third process sample is ground to obtain the assay sample.

[0040] In the working process of the coke sample preparation system, process materials generated in the production process can be placed in the raw material buffer rack 9 for short-term storage, such as the first waste sample obtained in S1, the moisture waste sample obtained in S2, the second waste sample obtained in S3, and the third waste sample obtained in S4. At the same time, the moisture sample obtained in S1, the moisture sample obtained in S2, the moisture sample storage sample, the test sample obtained in S4, and the test sample storage sample can all be packaged by the packaging machine 10.

[0041] Preferably, as another embodiment of the utility model, in the coke sample preparation system, Figure 2 As shown in the figure, the raw material buffer rack 9 includes a box body 9-1 and two lifting plates 9-2, the box body 9-1 is open on one side, facilitating the grabbing mechanism 1 to grab the tray 1-6, the upper end of the box body 9-1 is provided with a waste sample inlet and a sample inlet, the sample inlet is located below the discharge end of the sample conveying machine 11, the waste sample inlet is connected with a material pouring bin 9-4, the inner wall of the material pouring bin 9-4 is provided with a dust collection mechanism 9-5, a plurality of storage plates 9-6 are arranged in the box body 9-1 in an upper and lower interval, and the two lifting plates 9-2 are respectively located below the waste sample inlet and the sample inlet and are connected with the uppermost storage plate 9-6 through a lifting unit 9-3.

[0042] In this embodiment, the tray 1-6 is placed on the upper end of the lifting plate 9-2, and the two lifting units 9-3 drive the two lifting plates 9-2 to move up and down, thereby realizing the up and down movement of the tray 1-6 on the lifting plate 9-2. When the sample conveying machine 11 feeds the raw material buffer rack 9, the tray 1-6 below the sample inlet moves upward under the driving of the corresponding lifting unit 9-3, passes through the sample inlet, and is close to the discharge end of the sample conveying machine 11, thereby reducing the distance between the tray 1-6 and the discharge end of the sample conveying machine 11, ensuring that the materials conveyed from the sample conveying machine 11 can all fall into the tray 1-6, and avoiding that the materials bounce up when falling and cannot fall into the tray 1-6; after completing the material receiving, the lifting unit 9-3 drives the tray 1-6 to move downward into the box body 9-1. When collecting the waste sample, a special waste tray 1-6 can be arranged in the box body 9-1 in advance to reduce the number of times that the waste sample is poured on the waste sample conveying machine 12 by the mechanical hand 1. The waste tray 1-6 is placed on the lifting plate 9-2 below the waste sample inlet, the corresponding lifting unit 9-3 drives the waste tray 1-6 to move upward and pass through the waste sample inlet to move into the material pouring bin 9-4, the mechanical hand 1 grabs the tray 1-6 containing the waste sample into the material pouring bin 9-4 to pour the material, and the waste sample is poured into the waste tray 1-6. Dust may be generated during the pouring process, which can be sucked away by the dust collection mechanism 9-5 on the inner wall of the material pouring bin 9-4.

[0043] Preferably, as another embodiment of the utility model, the coke sample preparation system further comprises a sample feeding conveyor 11 and a waste sample conveyor 12, the discharge end of the sample feeding conveyor 11 extends above the raw material buffer rack 9, and the mechanical hand 1 can drive the tray 1-6 to move above the sample feeding inlet.

[0044] In this embodiment, the sample feeding conveyor 11 is arranged to convey the material to be prepared to the empty tray 1-6 on the raw material buffer rack 9, and then the mechanical hand 1 moves the tray 1-6 to carry out the subsequent process. The waste sample conveyor 12 is arranged to move the tray 1-6 containing the first waste sample obtained in S1, the moisture waste sample obtained in S2, the second waste sample obtained in S3, and the third waste sample obtained in S4 to the feeding end of the waste sample conveyor 12, and pour the above waste samples on the waste sample conveyor 12, and then the waste sample conveyor 12 transports them to the subsequent collection and processing equipment.

[0045] Preferably, as another embodiment of the utility model, the coke sample preparation system further comprises a sample feeding conveyor 11 and a waste sample conveyor 12, the discharge end of the sample feeding conveyor 11 extends above the raw material buffer rack 9, and the mechanical hand 1 can drive the tray 1-6 to move above the sample feeding inlet. Figure 3 As shown in the figure, the clamp 1-1 comprises a mounting seat 1-2, a self-centering vice 1-4, two clamping jaws 1-3, and a proximity switch 1-5. The self-centering vice 1-4 is arranged on the mounting seat 1-2. The two clamping jaws 1-3 are arranged opposite to each other and are connected to the self-centering vice 1-4. The proximity switch 1-5 is arranged between the two clamping jaws 1-3.

[0046] In this embodiment, the clamp 1-1 is arranged to clamp the tray 1-6, and the mechanical hand 1 drives the clamp to move between the first-stage quantitative divider 2, the second-stage quantitative divider 3, the moisture sample divider 4, the grinding machine 5, the first crusher 6, the second crusher 7, the drying box 8, the raw material buffer rack 9, the packaging machine 10, and the feeding end of the waste sample conveyor 12. The mechanical hand 1 is arranged to flip and drive the tray 1-6 to rotate to realize the action of pouring the material. The self-centering vice 1-4 is arranged to drive the two clamping jaws 1-3 arranged opposite to each other to move close to or away from each other, and the two clamping jaws 1-3 form a clamping position between them. The clamping position is arranged to clamp the tray 1-6 containing the coke sample to realize the action of clamping or releasing the tray 1-6. The proximity switch 1-5 is arranged between the two clamping jaws 1-3 to detect the opening and closing states of the clamp. When the proximity switch 1-5 detects a signal, the two clamping jaws 1-3 move close to each other to the minimum distance between them, and the clamping jaws 1-3 are in the closed state. When the proximity switch 1-5 does not detect a signal, the distance between the two clamping jaws 1-3 is greater than the minimum distance, and the clamping jaws 1-3 are in the open state.

[0047] The side close to each other of the clamping jaw 1-3 can be provided with a cross-shaped clamping part, by arranging the cross-shaped clamping part on the side close to each other of the clamping jaw 1-3, the area of the clamping part is reduced, the pressure when the contact surface contacts the tray 1-6 is improved, and meanwhile, as shown in the accompanying Figure 6 The tray 1-6 is provided with a clamping part, the two clamping jaws 1-3 clamp the clamping part, cross-shaped grooves matched with the clamping parts of the two clamping jaws 1-3 are arranged at two ends of the clamping part, the clamping part is clamped in the cross-shaped grooves, the clamping effect of the two clamping jaws 1-3 is enhanced, and the stability when the clamping jaws 1-3 clamp the tray 1-6 is improved.

[0048] Preferably, as another embodiment of the utility model, a kind of coke sample preparation system, two straight linear guides 1-7 along the moving direction of the clamping jaw 1-3 are provided on the mounting seat 1-2, two sliders 1-8 can be slidably arranged on the straight linear guide 1-7, and the two sliders 1-8 are respectively connected with the two clamping jaws 1-3.

[0049] In this embodiment, the slider 1-8 slides along the length direction of the straight linear guide 1-7, the movement track of the slider 1-8 and the clamping jaw 1-3 connected with the slider 1-8 is limited by the straight linear guide 1-7, the movement of the clamping jaw 1-3 is supported to some extent, and the stability of the clamping jaw 1-3 during movement is maintained.

[0050] Preferably, as another embodiment of the utility model, a kind of coke sample preparation system, the first-stage quantitative division machine includes a blanking bin 2-1, a conveying mechanism, a discharge hopper and a collecting mechanism 2-13, the feeding end of the conveying mechanism is connected with the discharge port of the blanking bin 2-1, the feeding port of the discharge hopper is connected with the discharge end of the conveying mechanism, and the upper end of the collecting mechanism 2-13 is circumferentially uniformly provided with a plurality of fixing positions for placing trays, and the collecting mechanism 2-13 is driven.

[0051] In this embodiment, after the material is put into the blanking bin 2-1, it falls onto the conveying mechanism, the amount of material falling into the discharge hopper each time is controlled by the conveying mechanism, the quantitative division of the material is realized, and finally the material in the discharge hopper is collected by the tray placed on the collecting mechanism 2-13, and the quality of the material conveyed into the discharge hopper each time is controlled by the conveying mechanism to realize the division. Figure 6 As shown in the accompanying Figure 6 The structure of the shell in the accompanying

[0052] Preferably, as another embodiment of the utility model, a kind of coke sample preparation system in the utility model, the conveying mechanism includes belt conveyor 2-2, weighing sensor, adjusting plate 2-4 and adjusting unit 2-5, the belt conveyor 2-2 is horizontally arranged, and located below the discharge port of the blanking bin 2-1, two guide plates 2-3 are spaced apart above the conveying belt of the belt conveyor 2-2, the upper end of the guide plate 2-3 is connected with the blanking bin 2-1, and the lower end is slidably attached with the conveying belt of belt conveyor 2-2;Weighing sensor is provided on the belt conveyor 2-2, the adjusting plate 2-4 is arranged above the conveying belt of the belt conveyor 2-2, and is connected with the adjusting unit 2-5 arranged on the blanking bin 2-1, the adjusting unit 2-5 drives the adjusting plate 2-4 to move up and down to adjust the distance between the lower end and the conveying belt of the belt conveyor 2-2, and the discharge hopper is located below the discharge end of the conveying mechanism.

[0053] In this embodiment, two guide plates 2-3 are spaced apart above the conveying belt of the belt conveyor 2-2, the upper end of the guide plate 2-3 is connected with the blanking bin 2-1, and the material falling in the blanking bin 2-1 is stably dropped onto the conveying belt through the guide plate 2-3, and the material falling onto the conveying belt is between the two guide plates 2-3, and the movement of the material is limited by the adjusting plate 2-4, the adjusting plate 2-4, the conveying belt and the two guide plates 2-3 form an opening together, so that the material can only be conveyed forward through the opening, and the material after passing through the opening forms a fixed thickness, so as to ensure that the material on the conveying belt can be evenly discharged. The adjusting unit 2-5 drives the adjusting plate 2-4 to move up and down, adjusts the height of the opening, i.e. adjusts the thickness of the material passing through the adjusting plate 2-4, specifically, the adjusting unit 2-5 can adopt a telescopic cylinder.

[0054] Preferably, as another embodiment of the utility model, a kind of coke sample preparation system in the utility model, the discharge hopper includes hopper body 2-6 and discharge pipe 2-8, the hopper body 2-6 is provided with guide chute 2-7 at the upper end, the guide chute 2-7 is located below the discharge end of the conveying mechanism, the upper end is connected with the discharge port of the hopper body 2-6, and the collection mechanism 2-13 drives any tray on the fixed position to move to below the discharge pipe 2-8.

[0055] In this embodiment, the material falling at the discharge end of the conveying mechanism can enter the discharge pipe 2-8 through the guide chute 2-7, and finally fall into the tray on the fixed position below the discharge pipe 2-8 through the guidance of the discharge pipe 2-8.

[0056] Preferably, as another embodiment of the utility model, the coke sample preparation system, the hopper further includes guide cylinder 2-9, baffle plate 2-10 and drive unit 2-11, the guide cylinder 2-9 is coaxial with the hopper pipe 2-8, the lower end of the hopper pipe 2-8 extends into the guide cylinder 2-9, the lower end of the guide cylinder 2-9 penetrates the baffle plate 2-10 and is connected with it, the drive unit 2-11 is arranged on the hopper pipe 2-8 and is connected with the baffle plate 2-10, the drive unit 2-11 drives the baffle plate 2-10 to move up and down.

[0057] In this embodiment, under the action of gravity, the material in the hopper pipe 2-8 falls into the tray and bounces up, in order to prevent the material from bouncing out of the tray, the baffle plate 2-10 and the guide cylinder 2-9 are arranged, and the upper end opening of the tray is blocked by the baffle plate 2-10 and the guide cylinder 2-9 during discharging. Specifically, after the empty tray moves below the hopper pipe 2-8, the drive unit 2-11 drives the baffle plate 2-10 to move downward and press on the upper end of the tray, and the upper end opening of the tray is sealed, at this time, the hopper pipe 2-8 is discharged. After the discharge of the hopper pipe 2-8 is completed, the drive unit 2-11 drives the baffle plate 2-10 to move upward and loosen the tray.

[0058] Preferably, as another embodiment of the utility model, the coke sample preparation system, the hopper further includes telescopic cylinder 2-12, the telescopic cylinder 2-12 is sleeved at the connection between the hopper pipe 2-8 and the guide cylinder 2-9, and the upper and lower ends thereof are connected with the hopper pipe 2-8 and the guide cylinder 2-9 respectively.

[0059] In this embodiment, the telescopic cylinder 2-12 is further arranged to seal the connection between the hopper pipe 2-8 and the guide cylinder 2-9, so as to prevent the material in the hopper pipe 2-8 from flying out of the upper end of the guide cylinder 2-9 when falling downward and bouncing upward. The telescopic cylinder 2-12 can be made of telescopic pipe, which telescopes with the movement of the guide cylinder 2-9.

[0060] Although the embodiments of the utility model have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, it can be fully applied to various fields suitable for the utility model, and other modifications can be easily realized by those skilled in the art, therefore, the utility model is not limited to specific details and the embodiments shown and described herein without departing from the general concept defined by the claims and the equivalent scope.

Claims

1. A coke sample preparation system, characterized by, The mechanical arm is provided with a clamp for clamping a material tray, and a first quantitative dividing machine, a second quantitative dividing machine, a moisture sample dividing machine, a grinder, a jaw crusher, a roller crusher, a drying box, a raw material buffer rack and a packaging machine are arranged around the mechanical arm. The sample conveying machine is further provided with a waste sample conveying machine, and the discharge end of the sample conveying machine extends above the raw material buffer rack. The raw material buffer rack comprises a box body and two lifting plates, one side of the box body is open, and a waste sample inlet and a sample inlet are arranged at the upper end of the box body.

2. A coke sample preparation system as claimed in claim 1, wherein, The clamp comprises a mounting seat, a self-centering vice, two clamping jaws and a proximity switch.

3. A coke sample preparation system as claimed in claim 2, wherein, The self-centering vice is arranged on the mounting seat, the two clamping jaws are arranged opposite to each other and connected with the self-centering vice, and the proximity switch is arranged between the two clamping jaws.

4. A coke sample preparation system as claimed in claim 1, wherein, Two straight guide rails are arranged in parallel on the mounting seat and along the moving direction of the clamping jaws.

5. A coke sample preparation system as claimed in claim 4, wherein, The first quantitative dividing machine comprises a material falling bin, a conveying mechanism, a discharge hopper and a collecting mechanism.

6. A coke sample preparation system as claimed in claim 5, wherein, The conveying mechanism comprises a belt conveyor, a weighing sensor, an adjusting plate and an adjusting unit. The belt conveyor is horizontally arranged below the discharge port of the material falling bin. The belt conveyor is provided with two guide plates above the conveying belt in a spaced manner. The two guide plates are connected with the material falling bin at the upper end and are in sliding fit with the conveying belt of the belt conveyor at the lower end. The belt conveyor is provided with a weighing sensor. The adjusting plate is arranged above the conveying belt of the belt conveyor and is connected with the adjusting unit arranged on the material falling bin. The adjusting unit drives the adjusting plate to move up and down to adjust the distance between the lower end of the adjusting plate and the conveying belt of the belt conveyor. The discharge hopper is located below the discharge end of the conveying mechanism. The discharge hopper comprises a hopper body and a discharge pipe. The hopper body is provided with a guide groove at the upper end. The guide groove is located below the discharge end of the conveying mechanism. The upper end of the guide groove is connected with the discharge port of the hopper body. The collecting mechanism drives the material tray on any fixed position to move below the discharge pipe.

7. A coke sample preparation system as claimed in claim 6, wherein, The lower hopper further comprises a guide cylinder, a material blocking plate and a driving unit, the guide cylinder is coaxially arranged with the lower feeding pipe, the lower end of the lower feeding pipe extends into the guide cylinder, the lower end of the guide cylinder penetrates through the material blocking plate and is connected with the material blocking plate, the driving unit is arranged on the lower feeding pipe and is connected with the material blocking plate, the driving unit drives the material blocking plate to move up and down.

8. A coke sample preparation system as claimed in claim 7, wherein, The lower hopper further comprises a telescopic cylinder, the telescopic cylinder is sleeved at the joint of the lower feeding pipe and the guide cylinder, and the upper and lower ends of the telescopic cylinder are connected with the lower feeding pipe and the guide cylinder respectively.

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