Loading and unloading device for coal sample transportation

Abstract

The invention discloses a loading and unloading device for coal sample transportation, which comprises a storage tank used for storing a coal sample, a feed port used for feeding and a discharge port used for discharging the coal sample are arranged on the storage tank, an electromagnetic valve is arranged on the discharge port, a sealing assembly comprises a sealing pipe used for pressurizing an inner cavity of the storage tank, a sealing valve is arranged on the sealing pipe, and the sealing valve is connected with the storage tank. And an isolation piece for preventing the coal sample from leaking is arranged in the sealing pipe. The coal sample storage device has the beneficial effects that the gas storage tank is communicated through the sealing pipe, so that the gas pressure in the gas storage tank is higher than the external atmospheric pressure under the action of the gas pressure gradient force, and after the discharge port is opened, high-pressure gas flow in the material storage tank can be discharged out of the material storage tank along with a coal sample; therefore, the coal sample cannot enter the storage tank, so that the situation that external moisture enters the storage tank to change the performance of the coal sample in the process of taking the coal sample is avoided, the stability of the performance of the coal sample is further ensured, and the detection result of the coal sample is improved.

Description

Technical Field

[0001] The invention relates to the field of coal sample loading and unloading, in particular to a loading and unloading device for coal sample transportation. Background Art

[0002] Coal samples represent the properties of the entire coal batch, so they must be analyzed and tested before use. Before analysis, the samples must be removed from the sample storage bin. However, during the loading and unloading process, moisture from the outside easily enters the bin through the discharge port, increasing the water content in the bin and causing the coal samples to become damp, which can affect the test results. To address this issue, we propose a loading and unloading device for coal sample transportation. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is that during the existing coal sample acquisition process, external moisture easily enters the storage box through the storage box outlet, thereby affecting the coal sample detection.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a loading and unloading device for transporting coal samples, which includes a storage tank for storing coal samples, which is provided with a feed port for feeding and a discharge port for discharging samples, and the discharge port is provided with a solenoid valve, a sealing assembly, including a sealing tube for pressurizing the inner cavity of the storage tank, a closing valve is provided on the sealing tube, and an isolation part is provided in the sealing tube for preventing leakage of coal samples.

[0005] As a preferred solution of the loading and unloading device for coal sample transportation of the present invention, the isolation part includes an isolation cavity arranged in a sealing tube, an isolation plate is movably installed in the isolation cavity, and an isolation protrusion is provided at one end of the isolation cavity away from the storage tank, which interferes with the isolation plate.

[0006] As a preferred solution of the loading and unloading device for coal sample transportation of the present invention, a telescopic sleeve is installed on the end of the isolation chamber opposite to the isolation protrusion, a telescopic rod fixed to the isolation plate is movably installed in the telescopic sleeve, and the end of the telescopic rod extending into the telescopic sleeve is provided with a telescopic spring fixed to the telescopic sleeve.

[0007] As a preferred solution of the loading and unloading device for coal sample transportation of the present invention, the contact surface between the isolation plate and the isolation chamber is provided with a receiving groove, and a sealing ring is provided in the receiving groove, and a resistance arc plate is provided in the receiving groove and located at the inner circle of the sealing ring, and an isolation inclined plate is fixedly installed on the inner side of the resistance arc plate.

[0008] As a preferred solution of the loading and unloading device for coal sample transportation of the present invention, the materials of the isolation protrusion and the isolation plate are magnets that can attract each other, and the isolation protrusion is provided with a resistance rod with one end sliding through the accommodating groove, and the resistance rod passes through the accommodating groove and is in conflict with the inclined surface of the isolation inclined plate.

[0009] As a preferred solution of the loading and unloading device for coal sample transportation of the present invention, a support frame is provided on the outside of the storage tank, and a loading and unloading component on the support frame is used to control the movement of the sampling barrel. The loading and unloading component includes a placement plate slidably mounted on the support frame for placing the sampling barrel, and the support frame is provided with a loading and unloading slide for the placement plate to slide.

[0010] As a preferred solution of the loading and unloading device for coal sample transportation of the present invention, the support frame is provided with a driving cylinder for driving the placement plate to move, and the side of the placement plate away from the storage tank is provided with an auxiliary roller in contact with the ground.

[0011] As a preferred solution of the loading and unloading device for coal sample transportation of the present invention, the support frame is provided with a clamping member for fixing the sampling barrel, the clamping member includes a clamping plate for clamping the sampling barrel, and a clamping roller is rotatably installed on the clamping surface of the clamping plate.

[0012] As a preferred solution of the loading and unloading device for coal sample transportation of the present invention, wherein: the support frame is provided with a transmission member for driving the clamping member to move, the transmission member includes a first transmission gear and a second transmission gear arranged in the support frame and the loading and unloading chute, and a transmission rod for transmission connection is provided between the first transmission gear and the second transmission gear, the first transmission gear is externally engaged with a first transmission rack fixed to the clamping plate, and the second transmission gear is externally engaged with a second transmission rack arranged on the placement plate.

[0013] As a preferred solution of the loading and unloading device for coal sample transportation of the present invention, the loading and unloading assembly further comprises an operating worm gear arranged at the operating end of the closing valve, and an operating worm gear coaxially fixed with the transmission rod is engaged on the outside of the operating worm gear.

[0014] The beneficial effects of the loading and unloading device for coal sample transportation of the present invention are as follows: the gas storage tank is connected through a sealed tube, so that the air pressure in the gas storage tank is higher than the external atmospheric pressure under the action of the air pressure gradient force. In this way, after the discharge port is opened, the high-pressure airflow in the storage tank will be discharged from the storage tank together with the coal sample, while the airflow containing moisture from the outside cannot enter the storage tank because of its lower pressure, thereby avoiding the external moisture from entering the interior of the storage tank during the process of taking the coal sample and changing the performance of the coal sample, thereby ensuring the stability of the coal sample performance and improving the detection results of the coal sample. In addition, the clamping plate arranged on the support frame can realize the fixation of the sampling barrel during the coal sampling process, thereby improving the stability of the coal sample loading and avoiding the waste of coal samples due to the displacement of the sampling barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings of the embodiments of the present invention. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Among them:

[0016] Figure 1 Shows a schematic diagram of the three-dimensional structure of the invention;

[0017] Figure 2 Shows a schematic cross-sectional view of the sealing tube in the invention;

[0018] Figure 3 Shown Figure 2 Schematic diagram of the enlarged structure of area A in the middle;

[0019] Figure 4 A schematic diagram of the structure of the interference arc plate, the isolation inclined plate and the interference rod in the invention is shown;

[0020] Figure 5 Shows a schematic diagram of the top view structure of the invention;

[0021] Figure 6 A schematic cross-sectional view of the storage tank in the invention is shown. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below with reference to specific embodiments and the accompanying drawings.

[0023] The terms used in the present invention are those commonly used in the art in view of the functions of the present invention, but these terms may vary according to the intentions of those skilled in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but rather as the meanings of the terms and the overall description of the present invention.

[0024] This embodiment provides a loading and unloading device for coal sample transportation, such as Figure 1 As shown, the storage tank 1 is provided with a feed port 11 and a discharge port 12, and a solenoid valve is provided at the discharge port 12. Coal samples are stored inside the storage tank 1. When loading and unloading coal samples, it is only necessary to place the sampling bucket under the discharge port 12 and then open the solenoid valve. Under the action of the coal sample's own gravity, the coal sample in the storage tank 1 will fall into the sampling bucket under the action of its own gravity, thereby realizing the operation of obtaining coal samples.

[0025] However, in daily use, moisture from the outside will enter the coal sample storage tank 1 along the discharge port 12 during the process of the coal sample falling, thereby changing the performance of the coal sample inside the storage tank 1 and affecting the detection result of the next coal sample. In order to improve this result, the present invention provides a sealing tube 21 outside the storage tank 1 that is connected to the inner cavity of the storage tank 1. The other end of the sealing tube 21 is connected to a gas storage tank through a flange. Because the gas pressure in the gas storage tank is higher than the pressure inside the storage tank 1, the high pressure in the gas storage tank will flow to the storage tank 1 under the action of the pressure gradient force. The interior of the storage tank 1 increases the internal pressure of the storage tank 1 until the air pressure in the storage tank 1 is higher than the external atmospheric pressure. In this way, after the solenoid valve at the discharge port 12 is opened, the high-pressure airflow in the storage tank 1 will be discharged from the storage tank 1 together with the coal sample, while the airflow containing moisture from the outside cannot enter the storage tank 1 because of its lower pressure, thereby avoiding the external moisture from entering the interior of the storage tank 1 during the process of taking the coal sample and changing the performance of the coal sample, thereby ensuring the stability of the coal sample performance and improving the detection results of the coal sample.

[0026] During the daily storage of coal samples, the sealed tube 21 is in a connected state. Therefore, the coal sample in the storage tank 1 is easily entered into the sealed tube 21 under the action of vibration or other external forces and contaminates the gas storage tank connected to the storage tank 1. Because the present invention provides an isolation member 23 in the sealed tube 21 to prevent the leakage of coal samples, Figure 2As shown, an isolation chamber 231 is provided in the sealing tube 21, an isolation plate 232 is slidably installed in the isolation chamber 231, an isolation protrusion 233 that conflicts with the isolation plate 232 is provided at one end of the isolation chamber 231 away from the storage tank 1, and a telescopic sleeve 234 is fixedly installed at the other end of the isolation chamber 231, a telescopic rod 235 fixedly connected to the isolation plate 232 is slidably installed in the telescopic sleeve 234, and a telescopic spring 236 fixedly connected to the telescopic sleeve 234 is provided on the telescopic rod 235. When the air pressure in the storage tank 1 is lower than the air pressure in the gas storage tank, under the action of the pressure gradient force, the high-pressure airflow in the gas storage tank will enter the sealing tube 21 and push open the isolation plate 232. 32, compress the telescopic spring 236 in the telescopic sleeve 234 to separate the isolation plate 232 from the isolation protrusion 233, and then the airflow in the gas storage tank will flow into the storage tank 1 along the gap between the isolation plate 232 and the inner wall of the isolation cavity 231, thereby increasing the air pressure in the storage tank 1. As the airflow flows, the air pressure in the storage tank 1 slowly approaches the air pressure in the gas storage tank. At this time, the squeezing force of the isolation plate 232 at the gas storage tank will gradually decrease. Under the action of the telescopic spring 236, the isolation plate 232 will re-contact the isolation protrusion 233, closing the sealing tube 21, and preventing the coal sample from entering the sealing tube 21 and contaminating the gas storage tank.

[0027] like Figure 2 As shown, the cross section of the isolation chamber 231 is conical, and its internal dimensions decrease in the direction away from the storage tank 1. Therefore, when the airflow of the gas storage tank pushes the isolation plate 232, the gap between the isolation plate 232 and the inner wall of the isolation chamber 231 will gradually expand, thereby increasing the flow rate of the airflow. In addition, combined with Figure 2 and Figure 3 The isolation plate 232 is provided with a receiving groove 24, and a sealing ring 25 is sleeved in the receiving groove 24 and contacts the inner wall of the isolation cavity 231. Therefore, the first layer of isolation of the sealing tube 21 can be formed through the contact between the sealing ring 25 and the inner wall of the isolation cavity 231. Then, under the action of the telescopic spring 236, the isolation plate 232 will be close to the isolation protrusion 233, thereby forming a second layer of isolation of the sealing tube 21, thereby greatly improving the isolation effect of the sealing tube 21.

[0028] like Figure 4As shown, a resistance arc plate 26 that resists the sealing ring 25 is provided in the accommodating groove 24, and an isolation inclined plate 27 is provided on the inner side of the resistance arc plate 26. The inclined surface of the isolation inclined plate 27 contacts the resistance rod 28 fixed to the isolation protrusion 233, and the resistance rod 28 slides through the accommodating groove 24, so when the isolation plate 232 approaches the isolation protrusion 233, the resistance rod 28 will slide into the accommodating cavity, and by squeezing the inclined surface of the isolation inclined plate 27, the resistance arc plate 26 fixed to the isolation inclined plate 27 moves in the direction away from the isolation plate 232, thereby squeezing the sealing ring 25, so that the outer surface of the sealing ring 25 is more closely attached to the inner wall of the isolation cavity 231, which greatly increases the isolation effect of the sealing ring 25. In addition, the isolation protrusion 233 and the isolation plate 232 are both made of magnets and attract each other. Therefore, when the isolation plate 232 approaches the isolation protrusion 233, it will quickly adsorb together with the isolation protrusion 233, realizing the operation of isolating the sealing tube 21.

[0029] like Figure 1 As shown, a support frame 3 is provided outside the storage tank 1, and a loading and unloading assembly 4 for controlling the movement of the sampling barrel is installed in the support frame 3. The sampling barrel is placed on a placement plate 41 slidably installed on the support frame 3. The movement of the placement plate 41 can be controlled by a driving cylinder 43 provided on the support frame 3, which avoids the need for the staff to bend over and lift the sampling barrel to the bottom of the discharge port 12, saving a certain amount of labor. In addition, Figure 5 As shown, an auxiliary roller 44 is provided on the side of the placement plate 41 away from the storage tank 1 to facilitate driving the cylinder 43 to drive the placement plate 41 to move, while also providing a certain support function for the placement plate 41.

[0030] Because the internal pressure of the storage tank 1 is higher than the external atmospheric pressure in the present invention, the coal sample will have a relatively large impact during the coal sample discharging process. When the impact force acts on the sampling bucket, it is easy to cause the sampling bucket to shift. In order to avoid the coal sample falling to the ground due to the deviation of the sampling bucket, the present invention provides a clamping member 45 and a transmission member 46 for driving the clamping member 45 to move on the support frame 3. Figure 5 shown.

[0031] The support frame 3 is provided with a loading and unloading groove 42 for the placement plate 41 to slide. A second transmission gear 462 is rotatably installed in the loading and unloading groove 42. The second transmission gear 462 is engaged with a second transmission rack 464 arranged on the placement plate 41. The support frame 3 is also rotatably installed with a first transmission gear 461. A transmission rod 465 for transmission connection is provided between the first transmission gear 461 and the second transmission gear 462, so that the first transmission gear 461 and the second transmission gear 462 can rotate synchronously. The outside of the first transmission gear 461 is engaged with a first transmission rack 463 that slides with the support frame 3 through teeth. The first transmission rack 463 is fixedly installed with a clamping plate 451 for clamping the fixed sampling barrel near one end of the sampling barrel.

[0032] Therefore, when the driving cylinder 43 pulls the sampling bucket on the placement plate 41 to enter under the discharge port 12, and then opens the solenoid valve, the coal sample in the storage tank 1 can be put into the sampling bucket. During the movement of the sampling bucket toward the discharge port 12, the second transmission rack 464 provided on the placement plate 41 will drive the second transmission gear 462 to rotate, and then under the action of the transmission rod 465, the first transmission gear 461 will move synchronously with the second transmission gear 462, and the first transmission gear 461 will mesh with the first transmission rack 463. The clamping plate 451 is driven to squeeze the sampling barrel to achieve the fixing operation of the sampling barrel, thereby avoiding the deviation of the sampling barrel during the feeding process and improving the stability of the coal sample loading. After the loading is completed, the driving cylinder 43 can be controlled to push out the placement plate 41. During the pushing process, the second transmission rack 464 will drive the second transmission gear 462 to reverse, and then through the reverse movement of the first transmission gear 461 and the first transmission rack and other structures, the clamping plate 451 will be separated from the sampling barrel, thereby realizing the release of the clamping state of the sampling barrel.

[0033] like Figure 5 As shown, a clamping roller 452 is provided on the clamping surface of the clamping plate 451. When the placement plate 41 moves outward, the clamping plate 451 is still in contact with the sampling barrel. Strong pushing and pulling will cause wear on the surface of the sampling barrel. Therefore, the design of the clamping roller 452 can convert the sliding between the clamping plate 451 and the sampling barrel into rolling friction, reducing certain damage and making it easier to push out the sampling barrel.

[0034] like Figure 6 As shown, an operating worm gear 47 is fixedly installed on the operating end of the closing valve 22, and an operating worm 48 coaxially fixed with the transmission rod 465 is engaged on the outside of the operating worm gear 47. Therefore, when the transmission rod 465 rotates, the operating worm 48 can be controlled to drive the operating worm gear 47 to rotate, thereby realizing the opening and closing of the closing valve 22. In the present invention, through the setting of the operating worm 48 and the operating worm gear 47, the closing valve 22 is automatically closed when the coal sample is discharged and automatically opened under normal conditions, thereby avoiding the escape of airflow in the gas storage tank during the falling process of the coal sample, resulting in waste of high-pressure airflow and increased cost of coal sample detection.

[0035] like Figure 6 As shown, the storage tank 1 is provided with a stirring motor 5, and a stirring paddle for stirring the coal sample is provided inside the storage tank 1, and one end of the stirring paddle passes through the storage tank 1 and is fixedly connected to the output end of the stirring motor 5. Therefore, during the process of coal sample discharge, the stirring paddle can be driven to rotate by the stirring motor 5 to avoid bridging of the coal sample in the storage tank 1 when the air pressure is low, affecting the falling of the coal sample, thereby increasing the falling rate of the coal sample.

[0036] Finally, it should be pointed out that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways without departing from the scope of the present invention.

Claims

1. A loading and unloading device for transporting coal samples, characterized by: include, A storage tank (1) is used to store coal samples, and is provided with a feed port (11) for feeding and a discharge port (12) for discharging the samples, and a solenoid valve is provided on the discharge port (12); The sealing assembly (2) comprises a sealing tube (21) for increasing pressure in the inner cavity of the storage tank (1), a closing valve (22) being provided on the sealing tube (21), and an isolation member (23) for preventing coal sample leakage being provided in the sealing tube (21).

2. The loading and unloading device for coal sample transportation according to claim 1, characterized in that: The isolation member (23) comprises an isolation chamber (231) arranged in the sealing tube (21), an isolation plate (232) being movably mounted in the isolation chamber (231), and an isolation protrusion (233) that contacts the isolation plate (232) is provided at one end of the isolation chamber (231) away from the storage tank (1).

3. The loading and unloading device for coal sample transportation according to claim 2, characterized in that: A telescopic sleeve (234) is installed on the end of the isolation cavity (231) opposite to the isolation protrusion (233), a telescopic rod (235) fixedly connected to the isolation plate (232) is movably installed in the telescopic sleeve (234), and a telescopic spring (236) fixedly connected to the telescopic sleeve (234) is provided at one end of the telescopic rod (235) extending into the telescopic sleeve (234).

4. The loading and unloading device for coal sample transportation according to claim 3, characterized in that: The contact surface between the isolation plate (232) and the isolation cavity (231) is provided with an accommodating groove (24), and a sealing ring (25) is provided in the accommodating groove (24). A resisting arc plate (26) is provided in the accommodating groove (24) and located at the inner circle of the sealing ring (25). An isolation inclined plate (27) is fixedly installed on the inner side of the resisting arc plate (26).

5. The loading and unloading device for coal sample transportation according to claim 4, characterized in that: The materials of the isolation protrusion (233) and the isolation plate (232) are both magnets that can attract each other, and the isolation protrusion (233) is provided with a resistance rod (28) with one end sliding through the receiving groove (24), and the end of the resistance rod (28) passing through the receiving groove (24) is in resistance with the inclined surface of the isolation inclined plate (27).

6. The loading and unloading device for coal sample transportation according to claim 5, characterized in that: A support frame (3) is provided on the outside of the storage tank (1), and a loading and unloading assembly (4) is provided on the support frame (3) for controlling the movement of the sampling barrel. The loading and unloading assembly (4) includes a placement plate (41) slidably mounted on the support frame (3) for placing the sampling barrel, and a loading and unloading chute (42) is provided on the support frame (3) for the placement plate (41) to slide.

7. The loading and unloading device for coal sample transportation according to claim 6, characterized in that: The support frame (3) is provided with a driving cylinder (43) for driving the placement plate (41) to move, and an auxiliary roller (44) in contact with the ground is provided on the side of the placement plate (41) away from the storage tank (1).

8. The loading and unloading device for coal sample transportation according to claim 6, characterized in that: The support frame (3) is provided with a clamping member (45) for fixing the sampling barrel. The clamping member (45) includes a clamping plate (451) for clamping the sampling barrel, and a clamping roller (452) is rotatably mounted on the clamping surface of the clamping plate (451).

9. The loading and unloading device for coal sample transportation according to claim 8, characterized in that: The support frame (3) is provided with a transmission member (46) for driving the clamping member (45) to move. The transmission member (46) includes a first transmission gear (461) and a second transmission gear (462) arranged in the support frame (3) and the loading and unloading chute (42). A transmission rod (465) for transmission connection is provided between the first transmission gear (461) and the second transmission gear (462). The first transmission gear (461) is externally engaged with a first transmission rack (463) fixed to the clamping plate (451), and the second transmission gear (462) is externally engaged with a second transmission rack (464) arranged on the placement plate (41).

10. The loading and unloading device for coal sample transportation according to claim 9, characterized in that: The assembly and disassembly assembly (4) further comprises an operating worm wheel (47) arranged at the operating end of the closing valve (22), wherein the operating worm wheel (47) is externally engaged with an operating worm screw (48) coaxially fixed to the transmission rod (465).

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