Fly ash sampling device

Abstract

The utility model belongs to the technical field of sampling devices, and particularly relates to a fly ash sampling device which comprises a vehicle body with functions of loading, storing and unloading fly ash and an unloading pipeline which is arranged on the vehicle body and is used for being connected with a warehouse entering pipeline so as to enable the fly ash stored in the vehicle body to enter a storage warehouse, a sampling device is arranged at the joint of the warehouse inlet pipeline and the unloading pipeline, is used for carrying out multi-stage sampling on coal ash in the unloading process of the vehicle body, and comprises a sampling pipe arranged at the joint of the warehouse inlet pipeline and the unloading pipeline and a valve arranged on the sampling pipe and used for controlling the opening and closing states of the sampling pipe; by arranging the sampling device at the joint of the warehouse inlet pipeline and the unloading pipeline, multi-stage sampling can be carried out on the fly ash in the unloading process of the vehicle body, the comprehensiveness and accuracy of fly ash sampling are ensured, the quality of the fly ash can be monitored more effectively, and meanwhile, the sampling safety of sampling personnel can also be ensured.

Description

Technical Field

[0001] This utility model belongs to the field of sampling device technology, specifically relating to a fly ash sampling device. Background Technology

[0002] Fly ash is one of the important raw materials for cement concrete, and its quality directly affects the quality of cement concrete. In order to ensure the quality of fly ash, sampling devices are often used to take samples before the fly ash transport truck unloads the fly ash.

[0003] When sampling fly ash, sampling personnel climb to the pre-reserved tank on the roof of the fly ash transport vehicle using a sampling platform or ladder. Specifically, the sampling tube is inserted into the fly ash until it reaches a predetermined depth. Then, the sampling tube is rotated, causing the fly ash at that depth to be squeezed and enter the sampling tube through the inlet. Due to the limited length of the sampling tube, only fly ash samples located at the top of the vehicle can be obtained, which is not representative. At the same time, the sampling process requires sampling personnel to climb to the roof of the vehicle, which not only poses a risk of falling from a height but also makes it inconvenient to safely store the obtained fly ash samples. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a fly ash sampling device that solves the problems of weak sample representativeness and low sampling safety in fly ash sampling mentioned in the background art.

[0005] This utility model provides a fly ash sampling device, including a vehicle body with functions of loading, storing and unloading fly ash, and an unloading pipeline installed on the vehicle body for connecting to an inlet pipeline so that the fly ash stored in the vehicle body enters the storage silo. A sampling device is installed at the connection between the inlet pipeline and the unloading pipeline. The sampling device is used to perform multi-stage sampling of fly ash during the unloading process of the vehicle body. The sampling device includes a sampling pipe installed at the connection between the inlet pipeline and the unloading pipeline, and a valve installed on the sampling pipe for controlling the opening and closing state of the sampling pipe.

[0006] Preferably, it also includes a controller, which intermittently controls the opening and closing of the valve to allow fly ash to be discharged intermittently from the sampling pipe at the connection between the inlet pipe and the unloading pipe, thereby achieving sampling of fly ash at different locations inside the vehicle body.

[0007] Preferably, it also includes a sample storage box that can receive fly ash discharged from the output end of the sampling tube, the sample storage box including an inner liner with a top opening and the interior divided into multiple independent storage spaces by partitions.

[0008] Preferably, the sample storage box further includes a shell with a top opening closed by a detachable cover and a rotating component installed inside. The rotating component is used to drive the inner liner placed inside the shell to rotate. The cover is provided with an inlet that can be connected to a sampling tube. The rotating component is controlled by a controller.

[0009] Preferably, the rotating assembly consists of a motor mounted at the bottom of the inner cavity of the housing and a tray at the motor output end.

[0010] Preferably, each storage space in the inner liner is equipped with a weighing component at the bottom for weighing fly ash.

[0011] The beneficial effects of this utility model are: by setting up a sampling device at the connection between the inlet pipe and the unloading pipe, multi-level sampling of fly ash can be carried out during the unloading process of the vehicle body, ensuring the comprehensiveness and accuracy of fly ash sampling, which helps to more effectively monitor the quality of fly ash, and at the same time ensures the safety of sampling personnel. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the prior art of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of this utility model;

[0014] Figure 3 This is a side view of the structure of this utility model;

[0015] Figure 4 This is a top view cross-sectional structural diagram of the sample storage box in this utility model;

[0016] Figure 5 This is a side view sectional structural diagram of the sample storage box in this utility model;

[0017] Figure 6 This is a schematic diagram of the circuit principle structure of this utility model.

[0018] In the diagram: 1. Vehicle body; 2. Inlet pipe; 3. Unloading pipe; 4. Sampling pipe; 5. Valve; 6. Controller; 7. Sample storage box; 8. Partition; 9. Inner liner; 10. Cover plate; 11. Outer shell; 12. Inlet; 13. Motor; 14. Pallet; 15. Weighing assembly; 16. Storage space; 17. Reserved opening; 18. Sampling rod. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0020] like Figure 1 As shown, this is an existing fly ash sampling device of the present invention. It mainly includes a vehicle body 1 with functions of loading, storing and unloading fly ash, and an unloading pipeline 3 installed on the vehicle body 1 for connecting to the inlet pipeline 2 so that the fly ash stored in the vehicle body 1 can enter the storage silo. It also includes an air compressor (not shown in the figure). Compressed air generated by the air compressor (or external compressed air) enters the tank and is fluidized by a fluidizing device. With the help of the pressure difference inside and outside the tank, the fly ash is transported along the unloading pipeline 3 to the storage silo outside the tank. When sampling fly ash, the sampling personnel climb to the reserved opening 17 on the roof of the fly ash transport vehicle through a sampling platform or ladder to take the sample. Specifically, the sampling rod 18 is inserted into the fly ash until it is inserted to a predetermined depth. Then, the sampling rod 18 is rotated so that the fly ash at that depth is squeezed and enters the sampling rod 18 through the inlet. The above is an introduction to the existing fly ash sampling device.

[0021] As can be seen from the above, the existing fly ash sampling device has the following defects when in use: due to the limited length of the sampling rod 18, the sampling can only collect fly ash samples located on the upper part of the vehicle body 1, which is not representative; at the same time, during the sampling process, the sampling personnel need to climb to the roof of the vehicle, which not only poses a risk of falling from a height, but also makes it inconvenient to safely store the obtained fly ash samples, or after one sampling, it is necessary to climb down the ladder to the ground, temporarily store the obtained fly ash samples, and then climb back to the roof of the vehicle for subsequent sampling, which is cumbersome and has low sampling efficiency. Based on the above problems, this utility model adopts the following improvement method to solve them.

[0022] like Figure 2-6 As shown, the fly ash sampling device includes a vehicle body 1 with functions for loading, storing, and unloading fly ash, and a discharge pipe 3 installed on the vehicle body 1 for connecting to the inlet pipe 2 so that the fly ash stored in the vehicle body 1 enters the storage silo. A sampling device is installed at the connection between the inlet pipe 2 and the discharge pipe 3. This sampling device is used to perform multi-stage sampling of fly ash during the unloading process of the vehicle body 1. The sampling device includes a sampling pipe 4 installed at the connection between the inlet pipe 2 and the discharge pipe 3, and a valve 5 installed on the sampling pipe 4 for controlling the opening and closing state of the sampling pipe 4. Route 3 is one of the main structures of the existing fly ash transport tanker truck, used to discharge the powder from the tank. During unloading, the unloading pipeline 3 is connected to the inlet pipeline 2 of the storage silo. At the same time, the sampling device is connected between the inlet pipeline 2 and the unloading pipeline 3. When the fly ash enters the storage silo along the unloading steel pipe and the inlet pipeline 2, the valve 5 is opened. The fly ash flowing through the connection between the inlet pipeline 2 and the unloading pipeline 3 enters the sampling pipe 4, realizing sampling during the unloading process of fly ash. This avoids the sampling personnel climbing to the reserved opening 17 on the roof of the fly ash transport truck to take samples, thus improving the safety of sampling.

[0023] Furthermore, such as Figure 2-6 As shown, it also includes a controller 6. The controller 6 intermittently controls the opening and closing of the valve 5 to allow fly ash to be discharged intermittently from the sampling pipe 4 at the connection between the inlet pipe 2 and the unloading pipe 3, thereby achieving sampling of fly ash at different locations inside the vehicle body 1. Based on the above, the controller 6 is added. The controller 6 is electrically connected to the valve 5. By automatically controlling the opening and closing of the valve 5, the sampling of fly ash at different locations inside the vehicle body 1 is achieved, which improves the representativeness and diversity of the sampling and makes the sampling results more reliable.

[0024] Furthermore, such as Figure 4-5 As shown, it also includes a sample storage box 7 that can receive fly ash discharged from the output end of the sampling tube 4. The sample storage box 7 includes an inner liner 9 with a top opening and the interior divided into multiple independent storage spaces 16 by a partition 8. When the valve 5 is opened, fly ash enters the sample storage box 7 along the sampling tube 4. By aligning the sampling tube 4 with different storage spaces 16 during the sampling process, fly ash samples from different locations inside the vehicle body 1 can be sampled, avoiding confusion and contamination between different samples.

[0025] Furthermore, such as Figure 5 As shown, the sample storage box 7 also includes a shell 11 with its top opening closed by a detachable cover plate 10 and a rotating assembly installed inside. The rotating assembly is used to drive the inner liner 9 placed inside the shell 11 to rotate. The cover plate 10 is provided with an inlet 12 that can be connected to the sampling tube 4. The rotating assembly is controlled by the controller 6. During the sampling process, the sampling tube 4 is connected to the inlet 12 on the cover plate 10 to inject fly ash sample into the storage space 16 inside the inner liner. Specifically, at the end of each sampling, the controller 6 controls the rotating assembly to drive the inner liner 9 to rotate by a specific angle (for example, if there are four storage spaces 16 as shown in the figure, it rotates by 90 degrees; if there are three, it rotates by 120 degrees after each sampling, and so on, i.e., n). Each storage space rotates at an angle of 360° / n. It should be further noted that the controller 6 has a parameter adjustment function. By controlling the intermittent opening and closing time of the valve 5, the sampling interval is controlled. Specifically, the controller 6 can include buttons and a display screen. The display screen is used to show the parameter adjustment interface, and the buttons are used to set various control parameters. When unloading from the vehicle body 1, if the total unloading time is ten minutes, the valve 5 can be set to open once every three minutes to sample the fly ash. After sampling, the controller 6 closes the valve 5 and simultaneously controls the rotating component to move, causing the rotating component to drive the inner liner 9 to rotate, aligning the other storage spaces 16 of the inner liner 9 that have not received fly ash samples with the feed inlet 12.

[0026] Furthermore, such as Figure 5As shown, the rotating assembly consists of a motor 13 installed at the bottom of the inner cavity of the outer shell 11 and a tray 14 located at the output end of the motor 13. When the motor 13 is running, it drives the tray 14 to rotate, thereby driving the inner liner 9 to rotate. In order to ensure the stability of the rotation of the inner liner 9, the tray 14 and the inner liner 9 can be connected by magnetic attraction. Friction parts, such as friction patterns, can also be set on the top of the tray 14 or the bottom wall of the inner liner 9 to increase the friction between the tray 14 and the inner liner 9. The controller 6 controls the angle of rotation of the motor 13 each time to realize the connection between the sampling tube 4 and each storage space 16. For example, the motor 13 rotates 90 degrees in the forward direction each time (taking the four storage spaces 16 mentioned above as an example) to realize the rotation of the inner liner 9, thereby realizing that the different storage spaces 16 inside the inner liner 9 receive the fly ash samples discharged from the sampling tube 4 one after another.

[0027] Furthermore, such as Figure 5 As shown, each storage space 16 of the inner liner 9 is equipped with a weighing component 15 at the bottom for weighing fly ash. The weighing component 15 can weigh the fly ash sample in each storage space 16 during the sampling process to obtain the weight information of the collected fly ash. When the weight of fly ash in a storage space 16 reaches the preset value, a signal is transmitted to the controller 6 to control the closure of the valve 5 and the operation of the rotating component. The rotating component drives the inner liner 9 to rotate so that the sampling tube 4 is aligned with another storage space. When the weight of fly ash in all storage spaces reaches the preset value, the sampling device is turned off and the sampling operation is stopped.

Claims

1. A fly ash sampling device, comprising a vehicle body (1) having the functions of loading, storing and unloading fly ash, and an unloading pipeline (3) installed on the vehicle body (1) and used to connect to an inlet pipeline (2) so that the fly ash stored in the vehicle body (1) enters a storage silo, characterized in that: A sampling device is installed at the connection between the inlet pipe (2) and the unloading pipe (3). The sampling device is used to perform multi-stage sampling of fly ash during the unloading process of the vehicle body (1). The sampling device includes a sampling pipe (4) installed at the connection between the inlet pipe (2) and the unloading pipe (3) and a valve (5) installed on the sampling pipe (4) for controlling the opening and closing state of the sampling pipe (4).

2. The fly ash sampling device according to claim 1, characterized in that: It also includes a controller (6), which intermittently controls the opening and closing of the valve (5) to allow fly ash to be discharged intermittently from the sampling pipe (4) at the connection between the inlet pipe (2) and the unloading pipe (3) to sample fly ash at different locations inside the vehicle body (1).

3. The fly ash sampling device according to claim 1 or 2, characterized in that: It also includes a sample storage box (7) that can receive fly ash discharged from the output end of the sampling tube (4), the sample storage box (7) including an inner liner (9) with a top opening and the interior divided into multiple independent storage spaces (16) by a partition (8).

4. The fly ash sampling device according to claim 3, characterized in that: The sample storage box (7) also includes a shell (11) with a top opening closed by a detachable cover plate (10) and a rotating component installed inside. The rotating component is used to drive the inner liner (9) placed inside the shell (11) to rotate. The cover plate (10) is provided with an inlet (12) that can be connected to the sampling tube (4). The rotating component is controlled by the controller (6).

5. The fly ash sampling device according to claim 4, characterized in that: The rotating assembly consists of a motor (13) installed at the bottom of the inner cavity of the housing (11) and a tray (14) located at the output end of the motor (13).

6. The fly ash sampling device according to claim 5, characterized in that: Each storage space (16) of the inner liner (9) is provided with a weighing component (15) at the bottom for weighing fly ash.

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