Dividing machine for automatic sampling and sample preparation of iron ore

Abstract

The invention relates to the field of sample preparation, in particular to an iron ore automatic sampling and sample preparation division machine which comprises a machine shell, a control mechanism and a driving mechanism, a discharging mechanism and a division mechanism are arranged at the upper end of the machine shell, the division mechanism comprises a rotating shaft, a tray, a supporting column and a division assembly, and a mounting circular truncated cone is arranged at the upper end of the supporting column; a plurality of clamping blocks are arranged on the periphery of the installation circular truncated cone, the contraction assembly is installed on the installation circular truncated cone and comprises an inner ring, an outer ring and a plurality of contraction funnels, a plurality of clamping grooves are formed in the inner ring, the clamping grooves correspond to the clamping blocks in a one-to-one mode and are clamped with the clamping blocks, and the contraction funnels are distributed between the inner ring and the outer ring in a circumferential mode. The inner ring and the outer ring are fixedly connected through a division funnel, a connecting table is arranged on the outer ring, and a plurality of clamping blocks are arranged on the connecting table. According to the invention, the number of fractions of the sample after division can be adjusted by replacing the division assembly so as to adapt to different experiment requirements, and a large-circle division assembly can be additionally arranged, so that the setting range of the number of fractions of the sample is further expanded.

Description

Technical Field

[0001] The present invention relates to the field of sample preparation, and particularly to a riffler for automatic sampling and sample preparation of iron ore. Background Art

[0002] A riffler is a key device for sample preparation, which is widely used in industries such as coal, ore, and chemical raw materials. It divides a large amount of samples into representative smaller parts according to a certain ratio through mechanical devices, ensuring the accuracy and reliability of subsequent detections and improving work efficiency. It is an indispensable tool in laboratories and industrial production.

[0003] The rotary riffler is a commonly used type of riffler in the prior art. For example, a patent with the application number 202111383158.8 discloses a rotary riffler that divides samples by rotating a turntable at a constant speed. However, this rotary riffler still has certain deficiencies. For example, the number of samples after riffling cannot be changed. Since the number of riffling funnels on the turntable of the rotary riffler is fixed, the number of samples after riffling is always fixed each time it is used. However, in the actual use process, the required number of samples is not fixed. Therefore, the use of this rotary riffler will have a certain impact on the actual experimental process. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: how to provide a riffler for automatic sampling and sample preparation of iron ore that can adjust the number of samples after riffling to meet different experimental requirements when in use.

[0005] The present invention provides a riffler for automatic sampling and sample preparation of iron ore, which includes a machine shell, a control mechanism and a driving mechanism arranged in the machine shell. A feeding mechanism and a riffling mechanism are provided at the upper end of the machine shell. The feeding mechanism is arranged beside the riffling mechanism. The riffling mechanism includes a rotating shaft, a tray, a support column and a riffling component. The lower end of the rotating shaft is in transmission connection with the driving mechanism. The tray is installed at the upper end of the rotating shaft. The lower end of the support column is fixedly connected to the tray. An installation round table is provided at the upper end of the support column. A plurality of clamping blocks are arranged around the installation round table. The riffling component is installed on the installation round table. The riffling component includes an inner ring, an outer ring and a plurality of riffling funnels. A plurality of clamping slots are provided on the inner ring. The plurality of clamping slots correspond to and are engaged with the plurality of clamping blocks one by one. The plurality of riffling funnels are circumferentially distributed between the inner ring and the outer ring, and the inner ring and the outer ring are fixedly connected through the riffling funnels. A connecting platform is provided on the outer ring, and a plurality of clamping blocks are provided on the connecting platform.

[0006] Further, a plurality of circumferentially distributed positioning slots are provided at the lower end of the outer ring, and the number of the positioning slots corresponds to the number of the riffling funnels.

[0007] Furthermore, a plurality of annular grooves are provided on the tray, and the annular grooves are correspondingly arranged below the moving path of the riffling funnel. A positioning loop line is provided in the middle of each annular groove.

[0008] Furthermore, the blanking mechanism includes a connecting rod, a blanking funnel, a vibration conveying component and an adjusting component. The connecting rod is vertically fixed on the casing, the blanking funnel is fixedly arranged at the upper end of the connecting rod, the adjusting component is installed on the casing and the adjusting component is located directly below the blanking funnel, and the vibration conveying component is installed at the upper end of the adjusting component.

[0009] Furthermore, the adjusting component includes an adjusting turntable. The adjusting turntable is rotatably arranged at the upper end of the casing. A rotating groove is provided on the adjusting turntable. A limiting rod with one end rotatably connected thereto is arranged in the rotating groove. A plurality of limiting grooves engaged with the limiting rod are provided at the upper end of the casing, and the plurality of limiting grooves are circumferentially distributed beside the adjusting turntable.

[0010] Furthermore, a handle fixedly connected thereto is provided at the free end of the limiting rod.

[0011] Furthermore, the vibration conveying component includes a bracket, a vibration conveyor and a feeding track. The bracket is installed at the upper end of the adjusting turntable, the vibration conveyor is installed at the upper end of the bracket, and the feeding track is installed at the upper end of the vibration conveyor and one end of the feeding track is located directly below the blanking funnel.

[0012] Furthermore, a vibration isolation block is provided between the bracket and the vibration conveyor, and the bracket and the vibration conveyor are fixedly connected through the vibration isolation block.

[0013] The beneficial effects of the present invention are as follows: 1. The present invention can not only adjust the number of portions of the sample after riffling by replacing the riffling component to meet different experimental requirements, but also add a riffling component with a large circle to further increase the setting range of the number of sample portions.

[0014] 2. When the present invention works, only need to rotate the limiting rod out of the limiting groove, then rotate the adjusting turntable, and then put down the limiting rod so that the limiting rod enters another limiting groove to fix the position of the adjusting turntable. The use of the adjusting component is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 Schematic diagram of the three-dimensional structure of the present invention Figure 1 ; Figure 2 Schematic diagram of the three-dimensional structure of the present invention Figure 2 ; Figure 3 is Figure 2 the enlarged view of the position A in Figure 4 The disassembly of the sample reduction mechanism in the present invention Figure 1 ; Figure 5 The disassembly of the sample reduction mechanism in the present invention Figure 2 。

[0017] Reference numerals: 1, housing; 2, blanking mechanism; 21, connecting rod; 22, blanking funnel; 23, vibrating conveying assembly; 231, support; 232, vibrating conveyor; 233, material conveying track; 24, adjusting assembly; 241, adjusting turntable; 242, rotating groove; 243, limiting rod; 244, limiting groove; 3, sample reduction mechanism; 31, rotating shaft; 32, tray; 33, support column; 34, sample reduction assembly; 35, mounting round table; 36, clamping block; 37, inner ring; 38, outer ring; 39, sample reduction funnel; 310, clamping groove; 311, connecting table; 4, positioning groove; 5, annular groove; 6, positioning loop; 7, handle; 8, vibration isolation block. Detailed implementation manners

[0018] Next, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0019] Embodiment 1: In this embodiment, as Figures 1 to 5As shown in the figure, a riffler for automatic sampling and sample preparation of iron ore includes a machine housing 1, a control mechanism and a driving mechanism disposed within the machine housing 1. Both the control mechanism and the driving mechanism are prior arts. The control mechanism can be controlled through a PLC control system. A feeding mechanism 2 and a riffling mechanism 3 are provided at the upper end of the machine housing 1. The driving mechanism can be implemented by using a motor, which is mainly used to drive the riffling mechanism 3 to rotate. The feeding mechanism 2 is disposed beside the riffling mechanism 3. The riffling mechanism 3 includes a rotating shaft 31, a tray 32, a support column 33 and a riffling assembly 34. The lower end of the rotating shaft 31 is in transmission connection with the driving mechanism. The tray 32 is installed at the upper end of the rotating shaft 31. The tray 32 is used to place a container for holding samples. The lower end of the support column 33 is fixedly connected to the tray 32. An installation round table 35 is provided at the upper end of the support column 33. A plurality of clamping blocks 36 are provided around the installation round table 35. The riffling assembly 34 is installed on the installation round table 35. The riffling assembly 34 includes an inner ring 37, an outer ring 38 and a plurality of riffling funnels 39. A plurality of card slots 310 are provided on the inner ring 37. The plurality of card slots 310 correspond to and are engaged with the plurality of clamping blocks 36 one by one. The plurality of riffling funnels 39 are circumferentially distributed between the inner ring 37 and the outer ring 38, and the inner ring 37 and the outer ring 38 are fixedly connected through the riffling funnels 39. A connection platform 311 is provided on the outer ring 38, and a plurality of clamping blocks 36 are provided on the connection platform 311.

[0020] In the present invention, the riffling assembly 34 and the installation round table 35 are movably connected by the engagement of the clamping blocks 36 and the card slots 310, which is convenient for replacing the riffling assembly 34. Therefore, when conducting different experiments, if there are different requirements for the number of samples, different riffling assemblies 34 can be replaced. For example, Figure 2 in the riffling assembly 34, there are 12 riffling funnels 39, that is, the samples can be divided into 12 parts. If there are different requirements, different riffling assemblies 34 can be replaced. The arcs spanned by the riffling funnels 39 in different riffling assemblies 34 are different, which can change the number of riffling funnels 39, and thus change the number of samples after riffling. In addition, clamping blocks 36 are also provided on the connection platform 311 of the outer ring 38 of the riffling assembly 34. Then, a larger riffling assembly 34 can be installed outside the riffling assembly 34, and the number of riffling funnels 39 on the outer riffling assembly 34 can be more. Therefore, the adjustment range of the sample quantity during the use of the present invention can be further expanded.

[0021] The appendix of the present invention Figure 1 and Figure 5A set of parameters is provided. It can be seen that the number of sample reduction funnels 39 in the inner ring of the sample reduction component 34 is 12, and the number of sample reduction funnels 39 in the outer ring of the sample reduction component 34 is 20. From this, it can be known that the more the number of circles increases, the more sample portions can be separated by the sample reduction component 34. In short, the present invention can not only adjust the number of sample portions after sample reduction by replacing the sample reduction component 34 to meet different experimental requirements, but also add the sample reduction component 34 in the large circle to further increase the setting range of the number of sample portions.

[0022] In order to facilitate the alignment of the container for holding the sample with the corresponding sample reduction funnel 39, a plurality of circumferentially distributed positioning grooves 4 are provided at the lower end of the outer ring 38. The number of the positioning grooves 4 corresponds to the number of the sample reduction funnels 39. The position of the corresponding sample reduction funnel 39 can be known through the position of the positioning groove 4, improving the placement efficiency of the container.

[0023] In order to improve the alignment efficiency of the container and the sample reduction funnel 39 in the radial direction of the tray 32, a plurality of annular grooves 5 are provided on the tray 32. The annular grooves 5 are correspondingly arranged below the moving path of the sample reduction funnel 39. A positioning ring line 6 is provided in the middle of each annular groove 5. When placing the container, as long as it is ensured that the positioning ring line 6 passes through the center of the bottom of the container, the alignment of the container and the sample reduction funnel 39 in the radial direction of the tray 32 can be determined to be accurate.

[0024] Specifically, the blanking mechanism 2 includes a connecting rod 21, a blanking funnel 22, a vibration conveying component 23 and an adjusting component 24. The connecting rod 21 is vertically fixed on the machine shell 1. The blanking funnel 22 is fixedly arranged at the upper end of the connecting rod 21. The adjusting component 24 is installed on the machine shell 1 and the adjusting component 24 is located directly below the blanking funnel 22. The vibration conveying component 23 is installed at the upper end of the adjusting component 24. During operation, a large portion of the sample is poured into the blanking funnel 22, and then through the operation of the vibration conveying component 23, the sample falling out of the blanking funnel 22 is conveyed. Among them, the adjusting component 24 is provided to cooperate with the work of the sample reduction component 34. As Figure 1 shown, at this time, the end of the vibration conveying component 23 is located on the sample reduction component 34 in the inner ring. When working at this time, only the sample reduction component 34 in the inner ring can be used to reduce the sample. When the number of sample reduction fractions in the inner ring is insufficient, the outer ring needs to be used for sample reduction (at this time, the inner ring does not perform sample reduction work, and the inner and outer rings cannot perform sample reduction work simultaneously, which will cause uneven sample reduction). Then, the adjusting component 24 can be rotated to rotate the end of the vibration conveying component 23 above the sample reduction component 34 in the outer ring.

[0025] In order to facilitate the adjustment of the conveying end position of the vibration conveying assembly 23, the adjustment assembly 24 includes an adjustment turntable 241 which is rotatably arranged at the upper end of the machine shell 1. A rotation groove 242 is provided on the adjustment turntable 241, and a limiting rod 243 with one end rotatably connected thereto is arranged in the rotation groove 242. A plurality of limiting grooves 244 engaged with the limiting rod 243 are provided at the upper end of the machine shell 1, and the plurality of limiting grooves 244 are circumferentially distributed beside the adjustment turntable 241. Just rotate the limiting rod 243 out of the limiting groove 244, then rotate the adjustment turntable 241, and then put down the limiting rod 243 so that the limiting rod 243 enters another limiting groove 244 to fix the position of the adjustment turntable 241. The adjustment assembly 24 is very convenient to use. It should be emphasized here that a motor can also be provided under the adjustment turntable 241 and controlled through a control mechanism, so as to realize the automatic operation of the adjustment assembly 24.

[0026] Specifically, a handle 7 fixedly connected thereto is provided at the free end of the limiting rod 243, which makes it more convenient to control the limiting rod 243 through the handle 7.

[0027] Specifically, the vibration conveying assembly 23 includes a bracket 231, a vibration conveyor 232 and a feeding track 233. The bracket 231 is installed at the upper end of the adjustment turntable 241, the vibration conveyor 232 is installed at the upper end of the bracket 231, and the feeding track 233 is installed at the upper end of the vibration conveyor 232 and one end of the feeding track 233 is located directly below the blanking funnel 22. The vibration conveyor 232 is a prior art and can provide vibration so that the sample is evenly conveyed along the feeding track 233.

[0028] Specifically, a vibration isolation block 8 is provided between the bracket 231 and the vibration conveyor 232, and the bracket 231 and the vibration conveyor 232 are fixedly connected through the vibration isolation block 8. The vibration isolation block 8 is a prior art and will not be elaborated here. It can prevent the vibration of the vibration conveyor 232 from affecting other structures.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A reducing machine for automatic sampling of iron ore, comprising a housing (1) and a control mechanism and a driving mechanism arranged in the housing (1), characterized in that: The upper end of the housing (1) is provided with a feeding mechanism (2) and a contraction mechanism (3); the feeding mechanism (2) is arranged beside the contraction mechanism (3); the contraction mechanism (3) comprises a rotating shaft (31), a tray (32), a support (33) and a contraction assembly (34); the lower end of the rotating shaft (31) is transmission-connected to a driving mechanism; the tray (32) is mounted on the upper end of the rotating shaft (31); the lower end of the support (33) is fixedly connected to the tray (32); the upper end of the support (33) is provided with a mounting truncated platform (35); a plurality of clamping blocks (36) are arranged around the mounting truncated platform (35); and the contraction assembly (34) is provided with a plurality of clamping blocks (36) and a plurality of clamping blocks (36) arranged around the mounting truncated platform (35). (34) is mounted on a mounting truncated table (35), the shrinking assembly (34) comprises an inner ring (37), an outer ring (38) and a plurality of shrinking funnels (39), the inner ring (37) is provided with a plurality of slots (310), the plurality of slots (310) correspond to a plurality of blocks (36) one by one and engage with each other, the plurality of shrinking funnels (39) are distributed in a circular pattern between the inner ring (37) and the outer ring (38), and the inner ring (37) and the outer ring (38) are fixedly connected via the shrinking funnels (39), the outer ring (38) is provided with a connecting table (311), and the connecting table (311) is provided with a plurality of blocks (36).

2. The automatic iron ore sampling and dividing machine according to claim 1 is characterized in that: The lower end of the outer ring (38) is provided with a plurality of circumferentially distributed positioning grooves (4), and the number of the positioning grooves (4) corresponds to the number of the reduction funnels (39).

3. The automatic iron ore sampling and dividing machine according to claim 1 is characterized in that: The tray (32) is provided with a plurality of annular grooves (5), the annular grooves (5) being arranged correspondingly below the moving path of the reduction funnel (39), and a positioning ring line (6) being provided in the middle of each annular groove (5).

4. The automatic iron ore sampling and dividing machine according to claim 1 is characterized in that: The material discharge mechanism (2) comprises a connecting rod (21), a material discharge hopper (22), a vibrating conveying assembly (23) and an adjusting assembly (24); the connecting rod (21) is vertically fixed on the casing (1); the material discharge hopper (22) is fixedly arranged on the upper end of the connecting rod (21); the adjusting assembly (24) is installed on the casing (1) and the adjusting assembly (24) is located directly below the material discharge hopper (22); and the vibrating conveying assembly (23) is installed on the upper end of the adjusting assembly (24).

5. The automatic iron ore sampling and dividing machine according to claim 4 is characterized in that: The adjustment assembly (24) comprises an adjustment dial (241), the adjustment dial (241) being rotatably arranged at the upper end of the housing (1), the adjustment dial (241) being provided with a rotation slot (242), the rotation slot (242) being provided with a limit rod (243) having one end rotatably connected thereto, the upper end of the housing (1) being provided with a plurality of limit grooves (244) engaged with the limit rod (243), the plurality of limit grooves (244) being distributed in a circular shape beside the adjustment dial (241).

6. The automatic iron ore sampling and dividing machine according to claim 5, characterized in that: A handle (7) fixedly connected to the free end of the limiting rod (243) is provided.

7. The automatic iron ore sampling and dividing machine according to claim 4 is characterized in that: The vibrating conveying assembly (23) comprises a bracket (231), a vibrating conveyor (232) and a feeding track (233); the bracket (231) is mounted on the upper end of an adjusting turntable (241); the vibrating conveyor (232) is mounted on the upper end of the bracket (231); the feeding track (233) is mounted on the upper end of the vibrating conveyor (232); and one end of the feeding track (233) is located directly below the unloading hopper (22).

8. The automatic iron ore sampling and dividing machine according to claim 7 is characterized in that: A vibration isolation block (8) is provided between the bracket (231) and the vibration conveyor (232), and the bracket (231) and the vibration conveyor (232) are fixedly connected via the vibration isolation block (8).

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