Coal sample storage tank for coal mining

Abstract

The invention provides a coal sample storage tank capable of storing various coal samples, fixedly storing the coal samples and facilitating stacking, and in order to solve the technical problem, the coal sample storage tank for coal mining comprises a cylindrical storage tank body, and the storage tank body is provided with a plurality of fan-shaped storage cavities which are uniformly distributed in the circumference; each storage cavity is provided with a feeding port and a pressing port, an elastic layer is arranged on the outer side of each pressing port, a cylindrical air exhaust cavity which is coaxially arranged is formed in the storage tank body, the air exhaust cavity corresponds to the side face, close to the axial direction of the storage tank body, of each fan-shaped storage cavity, and air exhaust holes are formed between the fan-shaped storage cavities and the air exhaust cavity. A sealing plate is arranged at the upper end of the air exhaust cavity, a one-way valve is arranged on the sealing plate, an adjusting disc is vertically and slidably connected into the air exhaust cavity in a sealing mode, the upper end face of the adjusting disc is connected with the lower end face of the sealing plate through a pressure spring, the air exhaust hole is located at the end close to the sealing plate, and a ventilation opening is formed in the lower end of the air exhaust cavity.

Description

Technical Field

[0001] The invention relates to the technical field of coal mining, in particular to a coal sample storage tank for coal mining. Background Art

[0002] Coal samples are used to understand the physical, chemical properties and process characteristics of coal in order to determine the type of coal, provide a basis for arranging coal mining, selecting coal washing methods and coal equipment, and determining reasonable uses. From surveys, detailed investigations, exploration to mine production, different coal samples need to be taken according to different purposes. In order to determine certain characteristics of coal, a representative part of the coal is taken according to regulations. According to the data obtained from the coal sample analysis, the type and quality characteristics of the coal, as well as its processing and utilization characteristics and industrial utilization direction can be determined. Since coal is a non-homogeneous substance, in order to ensure the representativeness of the coal sample, the sampling and preparation of the sample must be carried out in accordance with national standards. At the same time, multiple sampling should be carried out to avoid misjudgment due to insufficient samples.

[0003] After coal samples are collected, they need to be stored. At the same time, since coal samples are minerals, they must be avoided from bumps and collisions during transportation to avoid breakage caused by bumps. At the same time, since coal samples need to be collected multiple times, storage and other issues must also be considered after collection. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to provide a coal mining coal sample storage tank which can store a variety of coal samples, store the coal samples in a fixed manner and facilitate stacking.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A coal sample storage tank for coal mining, comprising a cylindrical storage tank body, the storage tank body is provided with a plurality of fan-shaped storage cavities evenly distributed around the circumference, each storage cavity is provided with a feed port and a pressing port, an elastic layer is provided on the outer side of the pressing port, a coaxially arranged cylindrical vacuum chamber is provided in the storage tank body, the vacuum chambers respectively correspond to the side surfaces of each fan-shaped storage cavity close to the axial direction of the storage tank body, a vacuum hole is provided between each fan-shaped storage cavity and the vacuum chamber, a closing plate is provided at the upper end of the vacuum chamber, a one-way valve is provided on the closing plate, an adjusting disk is vertically sealed and slidably connected in the vacuum chamber, the upper end surface of the adjusting disk is connected to the lower end surface of the closing plate by a pressure spring, the vacuum hole is located at one end close to the closing plate, and a vent is provided at the lower end of the vacuum chamber.

[0007] Preferably, it also includes a protective shell located outside the storage tank body and arranged coaxially with the storage tank body, a plurality of lower support plates are evenly distributed on the circumference of the lower end surface of the protective shell, and a plurality of upper support plates are evenly distributed on the circumference of the upper end of the storage tank body, the upper support plates and the lower support plates are arc-shaped respectively, and the diameter of the lower support plates is larger than the diameter of the upper support plates.

[0008] Preferably, the outer edge side of the storage tank body is made of transparent material, and an observation port corresponding to the position of the fan-shaped storage cavity is opened on the outer edge side of the protective shell.

[0009] Preferably, it also includes a loading rack for filling the storage tank body, the loading rack includes a circular support plate, a rotating disk is coaxially rotatably connected to the support plate, a plurality of support rods extend upward from the outer edges of the support plate, a driving rack is fixedly connected to the upper ends of the support rods, a liftable driving motor is fixedly connected to the driving rack at a position corresponding to the axis of the rotating disk, a driving disk is fixedly connected to the rotating shaft of the driving motor, a ring-shaped driving slot is opened on the driving disk, and a driving plate matching the driving slot is provided in the air suction chamber above the closing plate.

[0010] Preferably, a filling funnel is provided on the driving frame at a position corresponding to the feed port.

[0011] Preferably, the support rods at the outer edge of the support plate are arranged close to one side of the support plate, and the other side is the inlet and outlet of the storage tank body, and the inner side surfaces of each support rod are arc-shaped corresponding to the outer circumference of the storage tank.

[0012] Preferably, the diameter of the driving disk is smaller than the inner diameter of the air pumping cavity, and the driving plates in the air pumping cavity are evenly distributed around the circumference.

[0013] Preferably, a vibration motor is fixedly connected to the lower end surface of the loading frame, a plurality of supporting legs are provided at the lower end of the loading frame, and buffer pads are provided at the lower ends of the supporting legs.

[0014] Preferably, the feed port and the pressing port are respectively located on the upper end surface of the fan-shaped storage cavity, and the pressing port is located on a side close to the axis of the storage cavity.

[0015] Preferably, an annular filter ring is provided on the inner side surface of the air extraction chamber at a position corresponding to the position of the air extraction hole, and the lower end surface of the filter ring is used to limit the upward movement distance of the adjustment disk.

[0016] The technical solution of the present invention achieves the following beneficial technical effects:

[0017] 1. It can store multiple coal samples of the same batch at one time and save each coal sample separately;

[0018] 2. When storing coal samples, the coal samples can be flexibly compressed so that the coal samples will not shake even if they vibrate during transportation;

[0019] 3. When storing coal samples, the pressure can be maintained for a long time, so that even if a small amount of leakage occurs, it will not affect the overall preservation effect;

[0020] 4. Easy to operate and simple to move during filling;

[0021] 5. Storage tanks can be stacked and stored without slipping during storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a second viewing angle of the overall structural schematic diagram of the present invention;

[0024] Figure 3 It is a cross-sectional view of the present invention;

[0025] Figure 4 This is a structural diagram of the storage tank of the present invention;

[0026] Figure 5 This is a structural diagram of the protective shell of the present invention;

[0027] Figure 6 This is a diagram showing the internal structure of the storage tank of the present invention;

[0028] Figure 7 It is a cross-sectional view of the storage tank of the present invention;

[0029] Figure 8 This is a second viewing angle of the cross-sectional view of the storage tank of the present invention;

[0030] Fig. 9 This is a structural diagram of the drive frame of the present invention;

[0031] Fig.10 This is a structural diagram of the drive disk of the present invention.

[0032] The reference numerals in the figure are represented as follows: 1. storage tank body; 2. storage cavity; 3. feed port; 4. pressing port; 5. elastic layer; 6. exhaust cavity; 7. exhaust hole; 8. closing plate; 9. one-way valve; 10. adjusting disk; 11. pressure spring; 12. vent; 13. protective shell; 14. lower support plate; 15. upper support plate; 16. observation port; 17. support plate; 18. rotating disk; 19. support rod; 20. driving frame; 21. driving motor; 22. driving disk; 23. driving notch; 24. driving plate; 25. filling funnel; 26. filter ring. DETAILED DESCRIPTION

[0033] This embodiment is described in detail in conjunction with the accompanying drawings when in use.

[0034] The equipment includes a cylindrical storage tank body 1, which is a flat cylindrical shape, and can be easily stacked during storage. At the same time, multiple storage tanks can be stacked during transportation, which is convenient for one-time transportation. The cylindrical storage tank body 1 is divided into multiple spaces. An air extraction chamber 6 is coaxially arranged at the axial position of the storage tank body 1. The annular space outside the air extraction chamber 6 is evenly divided into multiple fan-shaped storage chambers 2. A feed port 3 and a pressing port 4 are respectively provided at the upper end of each storage chamber 2. An elastic layer 5 is fixedly connected to the outer side of the pressing port 4. The feed port 3 and the pressing port 4 are connected to the outer side of the pressing port 4. The opening 3 is circular and has an annular protrusion upward, which is convenient for screwing and sealing through the cover after filling. An exhaust hole 7 is opened on one side of each storage chamber 2 close to the exhaust chamber 6. After the coal sample is filled, the feed opening 3 is first sealed through the cover, and then the exhaust chamber 6 is exhausted to create a negative pressure environment in the storage chamber 2. The negative pressure is preserved so that the air is discharged to avoid oxidation reaction during long-term storage. At the same time, when negative pressure is generated, the flexible layer will be deformed under the action of the negative pressure, and the deformed flexible layer will press downward to fill the space in the exhaust chamber 6, and flexibly press and fix the coal sample while pressing. Fixing through flexible deformation can not only avoid damage to the coal sample caused by squeezing and fixing, but also adapt to the shapes of various coal samples, making the application range wider. Because the coal sample is an irregular body, no matter how it is filled during filling, it is impossible to fill it exactly, which will inevitably cause shaking. The flexible pressing can fill the excess space and squeeze the coal sample to complete the fixation. The distribution of the material port 3 and the clamping port 4 relative to the axial direction of the storage tank body 1 is that the clamping port 4 is close to the inside and the feed port 3 is close to the outside, and the exhaust hole 7 is close to the side of the clamping port 4. In this way, during filling, since the coal sample enters from the feed port 3, gaps are easily generated below the clamping port 4. At the same time, since the bottom of the clamping port 4 is on the side with a smaller angle of the fan-shaped space, it is more likely to generate gaps. In this way, the arrangement of the clamping port 4 and the feed port 3 can solve the shaking problem caused by the gaps and can be stored for a long time in a negative pressure environment.

[0035] An adjusting disk 10 is vertically slidably connected in the air extraction chamber 6, and the outer circumference of the adjusting disk 10 is sealed and slidably matched with the inner side surface of the air extraction chamber 6. A sealing plate 8 is provided at the upper end of the inner side surface of the air extraction chamber 6, and an adjustable closed cavity is formed between the sealing plate 8 and the adjusting disk 10, and a suction hole 7 connected with each storage chamber 2 is provided on one side close to the sealing plate 8 in the space between the sealing plate 8 and the adjusting disk 10. A one-way valve 9 for extracting air outwards is provided at the upper end of the sealing plate 8, and a pressure spring 11 is provided between the lower end surface of the sealing plate 8 and the upper end surface of the adjusting disk 10, and an air vent 12 is provided at the lower end of the air extraction chamber 6. After the one-way valve 9 is connected to the negative pressure pump for extracting air, air is extracted by the negative pressure pump and negative pressure is generated. Since the air extraction chamber 6 and each storage chamber 2 are connected through the air extraction holes 7 respectively, negative pressure will be generated in each storage chamber 2 during air extraction, so that the elastic layer 5 of the pressing port 4 is pressed, and the adjusting disk 10 in the air extraction chamber 6 will move to the upper end surface of the air extraction chamber 6 when the negative pressure gradually increases. The filter ring 26 is fixedly connected to the upper end of the inner side surface of the suction chamber 6 and the corresponding position of each suction port. The filter ring 26 is provided with a filter screen. The filter screen can prevent the coal sample residue from entering the suction chamber 6 while ventilating. At the same time, the lower end of the filter ring 26 can limit the upward movement of the adjusting disk 10. The suction chamber 6 is provided with a vent 12 at the lower end, so that when the adjusting disk 10 moves upward, the pressure at the lower end of the suction chamber 6 can be balanced without generating negative pressure, and the suction negative pressure stops after reaching the set value. At this time, the adjusting disk 10 always maintains a certain pressure and negative pressure balance under the action of the pressure spring 11, so that even if a certain leakage occurs, the adjusting disk 10 can move downward a certain distance under the action of the pressure spring 11 to always maintain a certain negative pressure.

[0036] The storage tank body 1 is filled by means of a filling rack, which includes a circular support plate 17, the upper end of which is coaxially rotatably connected to a rotating disk 18, a plurality of support rods 19 extending upward from the outer circumference of the support plate 17, the support rods 19 being located on one side of the support plate 17, and each support rod 19 being fixedly connected to a drive rack 20, so that the support plate 17, the support rods 19 and the drive rack 20 together constitute a space for filling, the storage tank body 1 can enter from one side and be positioned by the support rods 19, and after positioning, each storage cavity 2 is filled in turn.

[0037] A driving motor 21 is connected to the upper end of the driving frame 20 through a lifting rod, and the rotating shaft of the driving motor 21 is coaxially arranged with the rotating disk 18. A driving disk 22 is fixedly connected to the lower end of the rotating shaft of the driving motor 21, and a plurality of circumferentially evenly distributed driving plates 24 are fixedly connected to the closing plate 8 at the upper end of the suction chamber 6, and a circumferentially evenly distributed driving groove 23 is opened on the lower end surface of the driving disk 22. The connection is completed by the cooperation between the driving groove 23 and the driving plate 24 when the driving motor 21 moves downward, and then the rotation of the driving motor 21 will drive the storage tank body 1 to rotate. The storage tank body 1 is located on the rotating disk 18, and the rotating disk 18 is coaxially rotatably connected with the support plate 17, which can reduce the resistance generated when the driving motor 21 rotates. The driving motor 21 is a stepping motor, which can control the angle of each rotation. A filling funnel 25 is provided on the driving frame 20 corresponding to the position of the discharge port, and the coal sample is loaded through the filling funnel 25. A vibration motor is fixed on the filling frame, and the storage space can accommodate more and more uniform storage space through vibration.

[0038] A protective shell 13 is provided on the outside of the storage tank body 1. The protective shell 13 is cylindrical and opens upward. The storage tank is rotatably connected in the protective shell 13. At the same time, the outer circumference of the storage tank body 1 is made of transparent material, so that the state and shape of the internal coal sample can be more conveniently observed. At the same time, an observation port 16 for observation is opened on the protective shell 13. When observing, it can be rotated to the position required for observation without being kept away from light.

[0039] A plurality of upper support sheets 15 arranged in a ring are provided on the upper end surface of the storage tank body 1, and a plurality of lower support sheets 14 arranged in a ring are provided on the lower end surface of the protective shell 13. The distribution diameter of the lower support sheets 14 is greater than the distribution diameter of the upper support sheets 15, so that when the two storage structures are stacked, the adjacent upper support sheets 15 and lower support sheets 14 can be nested and supported, so that they can be stable when stacked, and at the same time, the gaps between the upper and lower support sheets 14 can be convenient for taking when picking up goods.

[0040] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the claims of this patent application.

Claims

1. A coal sample storage tank for coal mining, characterized in that: The invention comprises a cylindrical storage tank body (1), wherein the storage tank body (1) is provided with a plurality of fan-shaped storage chambers (2) evenly distributed around the circumference, each storage chamber (2) is provided with a feed port (3) and a pressing port (4), an elastic layer (5) is provided on the outer side of the pressing port (4), and a coaxially arranged cylindrical air extraction chamber (6) is provided in the storage tank body (1), wherein the air extraction chamber (6) corresponds to the side surface of each fan-shaped storage chamber (2) close to the axial direction of the storage tank body (1), and each fan-shaped storage chamber (2 ) and the air extraction chamber (6), respectively, an air extraction hole (7) is provided between the air extraction chamber (6), a closing plate (8) is provided at the upper end of the air extraction chamber (6), a one-way valve (9) is provided on the closing plate (8), an adjusting disk (10) is vertically sealed and slidably connected in the air extraction chamber (6), the upper end surface of the adjusting disk (10) and the lower end surface of the closing plate (8) are connected via a pressure spring (11), the air extraction hole (7) is located at one end close to the closing plate (8), and an air vent (12) is provided at the lower end of the air extraction chamber (6).

2. A coal sample storage tank for coal mining according to claim 1, characterized in that: The invention also comprises a protective shell (13) located outside the storage tank body (1) and arranged coaxially with the storage tank body (1); a plurality of lower support sheets (14) are evenly distributed on the circumference of the lower end surface of the protective shell (13); a plurality of upper support sheets (15) are evenly distributed on the circumference of the upper end of the storage tank body (1); the upper support sheets (15) and the lower support sheets (14) are respectively arc-shaped, and the diameter of the lower support sheets (14) is greater than the diameter of the upper support sheets (15).

3. A coal sample storage tank for coal mining according to claim 2, characterized in that: The outer edge side of the storage tank body (1) is made of a transparent material, and an observation port (16) corresponding to the position of the fan-shaped storage cavity (2) is provided on the outer edge side of the protective shell (13).

4. A coal sample storage tank for coal mining according to claim 1, characterized in that: The invention also comprises a loading frame for loading the storage tank body (1), the loading frame comprising a circular support plate (17), a rotating disk (18) being coaxially rotatably connected to the support plate (17), a plurality of support rods (19) extending upward from the outer edges of the support plate (17), a driving frame (20) being fixedly connected to the upper ends of the support rods (19), a liftable driving motor (21) being fixedly connected to the driving frame (20) at a position corresponding to the axis of the rotating disk (18), a driving disk (22) being fixedly connected to the rotating shaft of the driving motor (21), a driving notch (23) being arranged in an annular manner on the driving disk (22), and a driving sheet (24) matching the driving notch (23) being provided in the air extraction chamber (6) above the closing plate (8).

5. A coal sample storage tank for coal mining according to claim 4, characterized in that: A filling funnel (25) is provided on the driving frame (20) at a position corresponding to the feed port (3).

6. A coal sample storage tank for coal mining according to claim 4, characterized in that: The support rods (19) on the outer edge of the support plate (17) are arranged close to one side of the support plate (17), and the other side is the inlet and outlet of the storage tank (1), and the inner side surfaces of the support rods (19) are arc-shaped corresponding to the outer circumference of the storage tank.

7. A coal sample storage tank for coal mining according to claim 6, characterized in that: The diameter of the driving disk (22) is smaller than the inner diameter of the air pumping cavity (6), and the driving plates (24) in the air pumping cavity (6) are evenly distributed around the circumference.

8. A coal sample storage tank for coal mining according to claim 4, characterized in that: The lower end surface of the loading frame is fixedly connected with a vibration motor, the lower end of the loading frame is provided with a plurality of supporting legs, and the lower ends of the supporting legs are provided with buffer pads.

9. A coal sample storage tank for coal mining according to claim 1, characterized in that: The feed port (3) and the pressing port (4) are respectively located on the upper end surface of the fan-shaped storage cavity (2), and the pressing port (4) is located on a side close to the axis of the storage cavity (2).

10. A coal sample storage tank for coal mining according to claim 1, characterized in that: An annular filter ring (26) is provided at a position corresponding to the position of the air extraction hole (7) on the inner side surface of the air extraction cavity (6), and the lower end surface of the filter ring (26) is used to limit the upward movement distance of the adjustment disk (10).

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