Pinch device

Abstract

The utility model relates to coal sample division technology field provides a kind of division device, two-division ware is used to divide material into two samples, two samples discharge from the two discharge ports of two-division ware;Two receiving containers are provided, two receiving containers and the two discharge ports of two-division ware one-to-one correspondence, receiving container is used to receive sample, the discharge end of two-division ware can be inserted in receiving container along the first direction, discharge port is opened in discharge end;Rotary mechanism includes first driving part and rotary disc, two receiving containers are respectively installed in the opposite sides of rotary disc's rotation axis, rotation axis is parallel with the first direction, first driving part is used to drive rotary disc to rotate around its axis;Displacement mechanism is used to move displacement mechanism along the first direction, the discharge end of two-division ware can enter and exit receiving container.

Description

Technical Field

[0001] This utility model relates to the field of coal sample reduction technology, and in particular to a reduction device. Background Technology

[0002] In the preparation of coal samples, sample reduction is a key step. Its purpose is to reduce a large amount of coal sample to the required analytical volume while maintaining the representativeness of the coal sample.

[0003] In existing fractionation devices, the fixed grid structure of the divider is prone to particle segregation: when the coal sample falls, large particles tend to roll to the outside of the grid due to inertia, resulting in uneven particle size distribution on both sides of the sample. After long-term use, the fixed diversion direction will amplify the particle size deviation and affect the representativeness of the fractionation.

[0004] Therefore, there is an urgent need for a reduction device to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to propose a sample reduction device that can counteract the flow preference of large particles, making the sample more representative.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] The reduction device includes:

[0008] The divider is used to divide the material into two samples, and the two samples are discharged from the two outlets of the divider.

[0009] Two receiving containers are provided, and the two receiving containers correspond one-to-one with the two discharge ports of the separator. The receiving containers are used to receive the sample. The discharge end of the separator can be inserted into the receiving container along the first direction, and the discharge port is opened at the discharge end.

[0010] The rotating mechanism includes a first driving member and a rotating disk. The two receiving containers are respectively installed on opposite sides of the rotation axis of the rotating disk. The rotation axis is parallel to the first direction. The first driving member is used to drive the rotating disk to rotate around its own axis.

[0011] The displacement mechanism is used to move the displacement mechanism along the first direction, and the discharge end of the separator can enter and exit the receiving container.

[0012] As a preferred technical solution of the above-mentioned reducing device, it also includes a protective cover, the rotating mechanism is installed inside the protective cover, the receiving container is placed inside the protective cover, and the displacement mechanism acts on the protective cover.

[0013] As a preferred embodiment of the above-mentioned reducing device, it further includes a housing, inside which the divider is installed on the top of the housing, the feed port of the divider is exposed outside the housing, and the protective cover is located below the divider.

[0014] As a preferred technical solution of the above-mentioned splitting device, the displacement mechanism includes a second driving member and an elastic member. The elastic member makes the protective cover always have a tendency to move closer to the splitter along the first direction. The second driving member can drive the protective cover to move away from the splitter along the first direction.

[0015] As a preferred embodiment of the above-mentioned reducing device, the rotating mechanism further includes a limiting member, which is installed on the peripheral edge of the rotating disk and is used to abut against the receiving container on the periphery.

[0016] As a preferred embodiment of the above-mentioned reducing device, the rotating disk is equipped with a first gravity sensor, which is used to obtain the mass of the sample in the receiving container.

[0017] As a preferred embodiment of the above-mentioned reduction device, it further includes a displacement sensor, which is used to obtain the displacement of the receiving container in the first direction.

[0018] As a preferred technical solution of the above-mentioned reducing device, it further includes a reciprocating mechanism and a hopper. The reciprocating mechanism is used to drive the hopper and adjust the distance between the hopper and the divider. The hopper is used to provide the material to the divider.

[0019] As a preferred technical solution of the above-mentioned reducing device, the divider includes 2n slots, where n is a positive integer. The 2n slots are arranged sequentially along the second direction. The reciprocating mechanism can drive the hopper to move along the second direction. The hopper is configured to provide the material to the divider during the movement along the second direction.

[0020] The first direction mentioned above is perpendicular to the second direction mentioned above.

[0021] As a preferred technical solution of the above-mentioned reducing device, it further includes a vibrator, which is installed on the hopper, or on the divider, or the hopper and the divider are each equipped with a vibrator.

[0022] The beneficial effects of this utility model are:

[0023] This application provides a material reduction device, including a divider, receiving containers, a rotating mechanism, and a displacement mechanism. The divider divides material into two equal samples, which are discharged from two outlets. Two receiving containers are provided, each corresponding to one of the two outlets of the divider. These containers receive the samples, and the outlet of the divider can be inserted into one of the receiving containers along a first direction. The rotating mechanism includes a first drive and a rotating disk. The two receiving containers are respectively mounted on opposite sides of the rotating disk's rotation axis, which is parallel to the first direction. The first drive drives the rotating disk to rotate around its own axis. The displacement mechanism moves the divider along the first direction, allowing the outlet of the divider to enter and exit the receiving containers.

[0024] For example, the separator includes an inlet and two outlets, designated as the first and second outlets respectively. The inlet is connected to both the first and second outlets. The rotation axis of the rotating disk of the rotating mechanism is parallel to a first direction. Two receiving containers are mounted on the rotating disk and located on opposite sides of the rotation axis. When the first driving element drives the rotating disk to rotate around its own axis, the two receiving containers revolve around the rotation axis to change their positions. The two receiving containers are referred to as the first receiving container and the second receiving container. The material is divided into multiple batches and sequentially fed into the separator. Currently, the first outlet extends into the first receiving container, and the second outlet extends into the second receiving container. The separator divides the first batch of material into two samples, with one sample entering the first receiving container from the first outlet and the other sample entering the second receiving container from the second outlet. Before the second batch of material enters the separator, the displacement mechanism drives the two receiving containers away from the separator along the first direction, causing the first discharge port to exit the first receiving container and the second discharge port to exit the second receiving container. Then, the rotating mechanism starts, and the rotating disk rotates, causing the first and second receiving containers to exchange positions. After the rotating mechanism stops, the displacement mechanism starts again, driving the two receiving containers closer to the separator along the first direction, causing the first discharge port to extend into the second receiving container and the second discharge port to extend into the first receiving container. The displacement mechanism stops, and then the second batch of material is fed into the separator for further separation.

[0025] In this way, the discharge port of the separator extends into the receiving container to suppress dust from the sample. By periodically exchanging the positions of the two receiving containers, the flow preference of large particles can be offset, making the sample more representative. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the reduction device provided in this embodiment of the utility model;

[0028] Figure 2 This is a top view of the reduction device provided in this embodiment of the utility model.

[0029] In the picture:

[0030] X, first direction; Y, second direction; Z, third direction;

[0031] 1. Divider; 11. Discharge port; 12. Inlet port; 13. Grid;

[0032] 2. Receiving container;

[0033] 3. Rotating mechanism; 31. First driving component; 32. Rotary disk; 33. Limiting component;

[0034] 5. Displacement mechanism; 51. Second driving component; 52. Elastic component;

[0035] 6. Protective cover; 7. Displacement sensor;

[0036] 8. Shell;

[0037] 91. Reciprocating mechanism; 92. Hopper;

[0038] 10. Vibrator. Detailed Implementation

[0039] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0040] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0043] like Figure 1 and Figure 2 As shown, this application provides a material reduction device, including a divider 1, a receiving container 2, a rotating mechanism 3, and a displacement mechanism 5. The divider 1 is used to divide the material into two equal samples, which are discharged from two outlets 11 of the divider 1. Two receiving containers 2 are provided, each corresponding to one of the two outlets 11 of the divider 1. The receiving containers 2 are used to receive the samples, and the outlet end of the divider 1 can be inserted into the receiving container 2 along a first direction X, with the outlet 11 located at the outlet end. The rotating mechanism 3 includes a first driving member 31 and a rotating disk 32. The two receiving containers 2 are respectively installed on opposite sides of the rotation axis of the rotating disk 32, which is parallel to the first direction X. The first driving member 31 drives the rotating disk 32 to rotate around its own axis. The displacement mechanism 5 is used to move the material along the first direction X, allowing the outlet end of the divider 1 to enter and exit the receiving container 2.

[0044] For example, the divider 1 includes an inlet 12 and two outlets 11, which are respectively the first outlet 11 and the second outlet 11. The inlet 12 is connected to both the first outlet 11 and the second outlet 11. The rotation axis of the rotating disk 32 of the rotating mechanism 3 is parallel to the first direction X. Two receiving containers 2 are installed on the rotating disk 32 and are located on both sides of the rotation axis of the rotating disk 32. When the first driving member 31 drives the rotating disk 32 to rotate around the rotation axis, the two receiving containers 2 revolve around the rotation axis to change and interchange their positions. The two receiving containers 2 are referred to as the first receiving container 2 and the second receiving container 2. The material is divided into multiple batches and sequentially fed into the separator 1. At the current stage, the first discharge port 11 extends into the first receiving container 2, and the second discharge port 11 extends into the second receiving container 2. The separator 1 divides the first batch of material into two samples: one sample enters the first receiving container 2 through the first discharge port 11, and the other sample enters the second receiving container 2 through the second discharge port 11. Before the second batch of material enters the separator 1, the displacement mechanism 5 drives the two receiving containers 2 away from the separator 1 along the first direction X, causing the first discharge port 11 to exit the first receiving container 2 and the second discharge port 11 to exit the second receiving container 2. Then, the rotation mechanism 3 starts, and the rotating disk 32 rotates, causing the first receiving container 2 and the second receiving container 2 to exchange positions. After this, the rotation mechanism 3 stops, and the displacement mechanism 5 starts again, driving the two receiving containers 2 closer to the separator 1 along the first direction X, causing the first discharge port 11 to extend into the second receiving container 2 and the second discharge port 11 to extend into the first receiving container 2. Displacement mechanism 5 stops, and the second batch of materials is then fed into divider 1 for further reduction.

[0045] Thus, the discharge port 11 of the separator 1 extends into the receiving container 2, which can suppress the dust phenomenon of the sample. By periodically exchanging the positions of the two receiving containers 2, the flow preference of large particles can be offset, making the sample more representative.

[0046] Optionally, the reducing device also includes a protective cover 6, a rotating mechanism 3 installed inside the protective cover 6, a receiving container 2 placed inside the protective cover 6, and a displacement mechanism 5 acting on the protective cover 6.

[0047] With this configuration, the protective cover 6 provides installation space for the rotating mechanism 3, simplifying the installation of the rotating mechanism 3 and the displacement mechanism 5.

[0048] Optionally, the dividing device also includes a housing 8, inside which a divider 1 is mounted on top of the housing 8, the feed port 12 of the divider 1 is exposed outside the housing 8, and a protective cover 6 is located below the divider 1.

[0049] For example, the first direction X is the vertical direction. The internal cavity of the housing 8 provides an installation environment and can limit the diffusion range of materials to a certain extent. The divider 1 is installed on the top of the housing 8. The top of the housing 8 has a clearance opening, so that the feed port 12 of the divider 1 can be exposed to the outside of the housing 8 through the clearance opening. The protective cover 6 is installed on the bottom of the housing 8. Under the action of gravity, the material is discharged from the divider 1 into the receiving container 2.

[0050] Optionally, the displacement mechanism 5 includes a second drive member 51 and an elastic member 52. The elastic member 52 makes the protective cover 6 always have a tendency to move closer to the splitter 1 along the first direction X. The second drive member 51 can drive the protective cover 6 to move away from the splitter 1 along the first direction X.

[0051] For example, the protective cover 6 is mounted on the bottom of the housing 8 via an elastic member 52. The second driving member 51 is an electric push rod, mounted on the top of the housing 8. The second driving member 51 can extend along the first direction X. When the separator 1 docks with the receiving container 2 to discharge material, the discharge end of the separator 1 extends into the receiving container 2, and the second driving member 51 is in a retracted state. When the two receiving containers 2 need to be interchanged, before the rotating mechanism 3 is started, the second driving member 51 extends along the first direction X and abuts against the protective cover 6. The protective cover 6 moves toward the bottom wall of the housing 8. The elastic element 52 undergoes elastic deformation under the force of the second driving element 51 until the discharge end of the separator 1 exits the receiving container 2. The rotating mechanism 3 starts, and the rotating disk 32 only drives the receiving container 2 to revolve around the axis. The protective cover 6 remains relatively stationary. After the repositioning is completed, the second driving element 51 resets, the elastic element 52 recovers its deformation, and the elastic element 52 acts on the protective cover 6 to move it toward the separator 1 side, thereby causing the discharge end of the separator 1 to extend back into the receiving container 2.

[0052] Optionally, the rotating mechanism 3 also includes a limiting member 33, which is installed on the peripheral edge of the rotating disk 32 and is used to abut against the receiving container 2 on the periphery.

[0053] For example, the limiting member 33 is installed on the peripheral edge of the rotating disk 32, forming a blocking structure protruding from the upper surface of the rotating disk 32. When the rotating disk 32 rotates, the receiving container 2 generates centrifugal force and has a tendency to move towards the peripheral edge of the rotating disk 32. The limiting member 33 is used to support the receiving container 2 on the peripheral side to prevent it from drifting when rotating and changing position.

[0054] Optionally, the rotating disk 32 is equipped with a first gravity sensor 71, which is used to obtain the mass of the sample in the receiving container 2.

[0055] For example, a first gravity sensor 71 is installed on the upper surface of the rotating disk 32. The first gravity sensor 71 is sandwiched between the receiving container 2 and the rotating disk 32 and is used to obtain the mass m of the sample in the receiving container 2. If m ≥ mt, where mt is a preset mass value, an alarm is triggered to remind the user that there is too much sample in the receiving container 2 and the receiving container 2 needs to be emptied in time.

[0056] Optionally, the reduction device also includes a displacement sensor 72, which is used to acquire the displacement of the receiving container 2 in the first direction X.

[0057] For example, displacement sensor 72 is installed inside housing 8 and on top of housing 8. The sensing part of displacement sensor 72 faces protective cover 6 along the first direction X, and is used to obtain position or displacement information of protective cover 6, so as to determine the positional relationship between receiving container 2 and separator 1. That is, since rotating mechanism 3 is installed inside protective cover 6 and receiving container 2 is installed on rotating disk 32 of rotating mechanism 3, the position of receiving container 2 and protective cover 6 in the first direction X is relatively fixed. Therefore, the position or displacement signal of receiving container 2 can be deduced from the position or displacement signal of protective cover 6. In this way, displacement sensor 72 can more accurately determine the position of receiving container 2, so as to ensure that when receiving container 2 needs to be interchanged, the discharge end of separator 1 is completely separated from receiving container 2, avoiding interference during the interchange process.

[0058] In other embodiments, the displacement sensor 72 is mounted on the protective cover 6, and the sensing part of the displacement sensor 72 faces the top wall of the housing 8 along the first direction X.

[0059] It should be noted that the displacement sensor 72 is existing technology, and its structure, installation method and operating principle will not be described in detail here.

[0060] Optionally, the dividing device also includes a reciprocating mechanism 91 and a hopper 92. The reciprocating mechanism 91 is used to drive the hopper 92 and adjust the distance between the hopper 92 and the divider 1. The hopper 92 is used to supply material to the divider 1.

[0061] For example, the reciprocating mechanism 91 can be a linear motion mechanism such as a telescopic rod, a lead screw slider, or a conveyor belt. The reciprocating mechanism 91 is located above the divider 1, and the hopper 92 is installed on the reciprocating mechanism 91. The feed inlet 12 of the divider 1 is formed on its top. Driven by the reciprocating mechanism 91, the hopper 92 can reciprocate between the upper and lower positions. When the hopper 92 is at the upper position, it can pick up material. When the hopper 92 is at the lower position, it can pour the material into the feed inlet 12 of the divider 1, providing material to the divider 1.

[0062] Optionally, the divider 1 includes 2n slots 13, where n is a positive integer. The 2n slots 13 are arranged sequentially along the second direction Y. The reciprocating mechanism 91 can drive the hopper 92 to move along the second direction Y. The hopper 92 is configured to provide material to the divider 1 during the movement along the second direction Y. The first direction X and the second direction Y are perpendicular.

[0063] For example, the divider 1 includes 2n slots 13, of which n are first slots 13 and n are second slots 13. The discharge ports 11 of the first slots 13 and the second slots 13 are arranged opposite to each other in a third direction. The first slots 13 and the second slots 13 are alternately arranged in the second direction Y, that is, along the second direction Y, a first slot 13 is sandwiched between two adjacent second slots 13, and a second slot 13 is sandwiched between two adjacent first slots 13. Driven by the reciprocating mechanism 91, the hopper 92 can move along the second direction Y and can supply material to the divider 1 during the movement, so that all the slots 13 can pick up material sequentially. In this way, it can avoid the material from accumulating when the hopper 92 discharges material in one place, which would prevent the slots 13 from picking up material evenly, and it can also alleviate the discharge pressure of each slot 13.

[0064] The first direction X, the second direction Y, and the third direction are all perpendicular to each other.

[0065] In other embodiments, the material is fed into the divider 1 through a feeding pipe, and the output end of the feeding pipe is installed at the moving end of the reciprocating mechanism 91.

[0066] Optionally, the dividing device may also include a vibrator 10, which is installed in the hopper 92, or in the divider 1, or the hopper 92 and the divider 1 are each equipped with a vibrator 10.

[0067] When the vibrator 10 is started, it can drive the hopper 92 and / or the divider 1 to vibrate, which makes it difficult for the material to stick to the wall inside the cavity. The continuous vibration increases the fluidity of the material and can prevent the material from blocking.

[0068] Optionally, a second gravity sensor 71 is installed on the hopper 92. The second gravity sensor 71 is used to obtain the weight M of the initial material. The two discharge ports 11 of the divider 1 are equipped with valves that can selectively open or close the discharge ports 11. All the material is put into the divider 1. When the total mass m_total of the sample in the two receiving containers 2 obtained by the first gravity sensor 71 satisfies that m_total is equal to N percent of M, where N is a positive integer divisible by 100, the valve closes and the divider 1 stops feeding material to the two receiving containers 2. After the positions of the two receiving containers 2 are swapped, the valve opens and the divider 1 continues to feed material to the two receiving containers 2.

[0069] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A reduction device, characterized in that, include: Divider (1) is used to divide the material into two samples, and the two samples are discharged from the two outlets (11) of the divider (1). There are two receiving containers (2), and the two receiving containers (2) correspond one-to-one with the two discharge ports (11) of the separator (1). The receiving containers (2) are used to receive the sample. The discharge end of the separator (1) can be inserted into the receiving container (2) along the first direction (X). The discharge port (11) is opened at the discharge end. The rotating mechanism (3) includes a first driving member (31) and a rotating disk (32). The two receiving containers (2) are respectively installed on opposite sides of the rotation axis of the rotating disk (32). The rotation axis is parallel to the first direction (X). The first driving member (31) is used to drive the rotating disk (32) to rotate around its own axis. The displacement mechanism (5) is used to move the displacement mechanism (5) along the first direction (X), and the discharge end of the splitter (1) can enter and exit the receiving container (2).

2. The reduction device according to claim 1, characterized in that, It also includes a protective cover (6), the rotating mechanism (3) is installed inside the protective cover (6), the receiving container (2) is placed inside the protective cover (6), and the displacement mechanism (5) acts on the protective cover (6).

3. The reduction device according to claim 2, characterized in that, It also includes a housing (8) inside the housing (8), the splitter (1) is installed on the top of the housing (8), the feed port (12) of the splitter (1) is exposed outside the housing (8), and the protective cover (6) is located below the splitter (1).

4. The reduction device according to claim 2, characterized in that, The displacement mechanism (5) includes a second drive member (51) and an elastic member (52). The elastic member (52) causes the protective cover (6) to always have a tendency to move closer to the splitter (1) along the first direction (X). The second drive member (51) can drive the protective cover (6) to move away from the splitter (1) along the first direction (X).

5. The reduction device according to claim 1, characterized in that, The rotating mechanism (3) also includes a limiting member (33), which is installed on the peripheral edge of the rotating disk (32) and is used to abut against the receiving container (2) on the peripheral side.

6. The reduction device according to claim 1, characterized in that, The rotating disk (32) is equipped with a first gravity sensor (71), which is used to obtain the mass of the sample in the receiving container (2).

7. The reduction device according to claim 1, characterized in that, It also includes a displacement sensor (72) for acquiring the displacement of the receiving container (2) in the first direction (X).

8. The reduction device according to any one of claims 1-7, characterized in that, It also includes a reciprocating mechanism (91) and a hopper (92), the reciprocating mechanism (91) being used to drive the hopper (92) and adjust the distance between the hopper (92) and the divider (1), the hopper (92) being used to supply the material to the divider (1).

9. The reduction device according to claim 8, characterized in that, The divider (1) includes 2n slots (13), where n is a positive integer. The 2n slots (13) are arranged sequentially along the second direction (Y). The reciprocating mechanism (91) can drive the hopper (92) to move along the second direction (Y). The hopper (92) is configured to provide the material to the divider (1) during the movement along the second direction (Y). The first direction (X) and the second direction (Y) are perpendicular.

10. The reduction device according to claim 8, characterized in that, It also includes a vibrator (10), which is installed in the hopper (92), or the vibrator (10) is installed in the divider (1), or the hopper (92) and the divider (1) are respectively equipped with vibrators (10).

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