Coal powder sampler
By designing a pulverized coal sampler, using anti-overflow components and time relays to control the sampling cycle, and combining a sealing and gas supply system, the problem of pulverized coal overflow was solved, achieving both accuracy and ease of operation in pulverized coal sampling.
Patent Information
- Application Number
- CN202521218496.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-30
- Estimated Expiration
- 2035-06-13
AI Technical Summary
During the coal powder sampling process, coal powder is prone to overflowing from the coal powder storage tank, resulting in inaccurate sampling and inconvenient operation.
A pulverized coal sampler was designed, comprising a pulverized coal pipeline, a sampling tube, a pulverized coal storage tank, an anti-overflow component, and a time relay. By setting the sampling cycle and controlling the sampling with the time relay, combined with the anti-overflow component and control components, the accurate control of the amount of pulverized coal in the pulverized coal storage tank is ensured, and overflow is prevented through sealing components and a gas supply system.
It achieves accuracy and ease of operation in coal powder sampling, reduces manpower consumption, lowers errors, and ensures high efficiency and controllability in the sampling process.
Smart Images
Figure CN224435869U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal powder sampling technology, specifically, to a coal powder sampler. Background Technology
[0002] In the production process, in order to test the coal grinding effect of the coal mill, it is necessary to take coal powder samples from the outlet pipe of the operating coal mill.
[0003] In related technologies, when sampling pulverized coal, an opening is made in the pulverized coal pipeline, one end of the sampling tube is connected to the pulverized coal pipeline through the opening, and the other end of the sampling tube is connected to the pulverized coal storage tank. The pulverized coal in the pipeline can enter the pulverized coal storage tank through the sampling tube. However, in the actual sampling process, pulverized coal is prone to overflowing from the pulverized coal storage tank. Utility Model Content
[0004] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention provide a coal powder sampler.
[0005] The coal powder sampler of this utility model embodiment includes:
[0006] A pulverized coal pipeline, wherein the pulverized coal pipeline has a sampling port;
[0007] A sampling tube, one end of which is connected to the sampling port, allows coal powder in the coal powder pipeline to enter the sampling tube through the sampling port;
[0008] A pulverized coal storage tank, wherein the pulverized coal storage tank is connected to the other end of the sampling tube, and the pulverized coal in the sampling tube can enter the pulverized coal storage tank;
[0009] An anti-overflow component is installed in the pulverized coal storage tank. The pulverized coal storage tank has a preset position. When the pulverized coal in the pulverized coal storage tank reaches the preset position, the anti-overflow component sends a signal and transmits the signal to a control component. The control component controls the sampling tube to stop sampling.
[0010] A time relay is connected to the control unit, and the time relay can be set to sample at predetermined intervals and to set the sampling time during sampling.
[0011] The coal powder sampler of this utility model embodiment uses a time relay to set the sampling cycle and sampling time of coal powder, saving manpower and reducing errors. The anti-overflow component makes it easy to observe whether the coal powder in the coal powder storage tank has reached the preset position, making it convenient to control the amount of coal powder. Moreover, the control component controls the start and stop of sampling, making operation convenient.
[0012] In some embodiments, the pulverized coal sampler further includes a first air supply component, and there are at least two sampling tubes, both of which are connected to the first air supply component. The first air supply component can supply compressed air into one of the at least two sampling tubes, and a negative pressure can be formed in the other of the at least two sampling tubes. The pulverized coal in the pulverized coal pipeline can enter the pulverized coal storage tank through the other sampling tube.
[0013] In some embodiments, the pulverized coal sampler further includes a cyclone separator disposed between the other sampling tube and the pulverized coal storage tank, the cyclone separator being used to separate air and pulverized coal.
[0014] In some embodiments, the pulverized coal sampler further includes an injection valve disposed on one of the at least two sampling tubes, the injection valve being used to control the opening and closing of one of the at least two sampling tubes.
[0015] In some embodiments, the coal powder sampler further includes a sealing element disposed at the sampling port, the sealing element being used to seal the connection between the sampling tube and the sampling port.
[0016] In some embodiments, the sealing element includes a second air supply component, a sleeve, a ventilation pipe, and a sealing valve. There are at least two sleeves that communicate with the ventilation pipe. Each of the at least two sleeves corresponds to at least two sampling ports. The sleeve is fitted over one end of the sampling pipe and connected to the outer wall of the pulverized coal pipeline. One end of the ventilation pipe communicates with the sleeve, and the other end of the ventilation pipe communicates with the second air supply component. The second air supply component is used to introduce compressed air into the ventilation pipe. The compressed air can enter between the sleeve and the sampling pipe through the ventilation pipe. The sealing valve is used to control the opening and closing of the ventilation pipe.
[0017] In some embodiments, the pulverized coal sampler further includes an electric motor connected to the first gas supply component, the second gas supply component, the overflow prevention component, the control component, and the time relay, and the electric motor is used to supply power.
[0018] In some embodiments, the pulverized coal sampler further includes a connecting pipe, one end of which is connected to the first gas supply device, and the other end of which is connected to at least two of the sampling pipes.
[0019] In some embodiments, the pulverized coal sampler further includes a shut-off valve, which is disposed on the connecting pipe and is used to control the opening and closing of the connecting pipe.
[0020] In some embodiments, the pulverized coal sampler further includes a pressure gauge disposed on the connecting pipe, the pressure gauge being used to detect the air pressure of compressed air inside the connecting pipe. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of a coal powder sampler according to an embodiment of the present invention.
[0022] Reference numerals in the attached drawings: 1. Pulverized coal pipeline; 11. Sampling port; 2. Sampling tube; 3. Pulverized coal storage tank; 4. Overflow prevention component; 5. First air supply component; 6. Cyclone separator; 71. Injection valve; 72. Shut-off valve; 8. Sealing component; 81. Second air supply component; 82. Sleeve; 83. Ventilation pipe; 84. Sealing valve; 91. Electric motor; 92. Coupling; 93. Connecting pipe; 94. Pressure gauge. Detailed Implementation
[0023] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0024] like Figure 1 As shown, the coal powder sampler of this embodiment includes a coal powder pipeline 1, a sampling tube 2, a coal powder storage tank 3, an anti-overflow component 4, and a time relay (not shown). The coal powder pipeline 1 has a sampling port 11. One end of the sampling tube 2 is connected to the sampling port 11, and the coal powder in the coal powder pipeline 1 can enter the sampling tube 2 through the sampling port 11. The coal powder storage tank 3 is connected to the other end of the sampling tube 2, and the coal powder in the sampling tube 2 can enter the coal powder storage tank 3. The anti-overflow component 4 is provided in the coal powder storage tank 3. The coal powder storage tank 3 has a preset position. When the coal powder in the coal powder storage tank 3 reaches the preset position, the anti-overflow component 4 sends a signal and transmits the signal to a control component (not shown). The control component controls the sampling tube 2 to stop sampling. The time relay is connected to the control component. The time relay can be set to sample at predetermined intervals and to set the sampling time during sampling.
[0025] The coal powder sampler of this utility model embodiment uses a time relay to set the sampling cycle and sampling time of coal powder, saving manpower and reducing errors. The anti-overflow component 4 makes it easy to observe whether the coal powder in the coal powder storage tank 3 has reached the preset position, making it convenient to control the amount of coal powder. Moreover, the start and stop of sampling are controlled by the control component, making the operation convenient.
[0026] Specifically, during actual sampling, the sampling time can be set to five minutes. After sampling is completed, the coal powder storage tank 3 can be removed to test the coal powder.
[0027] In some embodiments, the coal powder sampler further includes a first air supply component 5, and there are at least two sampling tubes 2, both of which are connected to the first air supply component 5. The first air supply component 5 can introduce compressed air into one of the at least two sampling tubes 2, and a negative pressure can be formed in the other of the at least two sampling tubes 2. The coal powder in the coal powder pipeline 1 can enter the coal powder storage tank 3 through the other sampling tube 2.
[0028] Specifically, there are at least two sampling ports 11, which are arranged at intervals along the extension direction of the pulverized coal pipeline 1, and each of the at least two sampling ports 11 corresponds to at least two sampling tubes 2. Before pulverization, compressed air is introduced into the at least two sampling tubes 2 through the first air supply component 5 to purge the interior of the at least two sampling tubes 2 and remove impurities. During pulverization, the first air supply component 5 introduces compressed air into one of the sampling tubes 2, creating a negative pressure in the other sampling tube 2. The pulverized coal in the pulverized coal pipeline 1 can enter the other sampling tube 2 through the sampling port 11, and then enter the pulverized coal storage tank 3, completing the pulverization process. The operation is simple and highly efficient.
[0029] In some embodiments, the pulverized coal sampler further includes a cyclone separator 6, which is disposed between another sampling tube 2 and the pulverized coal storage tank 3, and is used to separate air and pulverized coal.
[0030] Specifically, the coal powder in the other sampling tube 2 enters the cyclone separator 6 along with the air. In the cyclone separator 6, the coal powder can fall into the coal powder storage tank 3 under its own gravity.
[0031] In some embodiments, the coal powder sampler further includes an injection valve 71, which is disposed on one of the at least two sampling tubes 2 and is used to control the opening and closing of one of the at least two sampling tubes 2.
[0032] Specifically, one of the sampling tubes 2 is equipped with an air injection valve 71, and one of the sampling tubes 2 is adjacent to the first air supply component 5, while the other sampling tube 2 is far from the first air supply component 5. Before powder collection, one of the sampling tubes 2 can be closed by the air injection valve 71, and the first air supply component 5 can introduce compressed air into the other sampling tube 2 to purge the interior of the other sampling tube 2. Afterward, the air injection valve 71 is opened, so that one of the sampling tubes 2 is opened, and the compressed air discharged by the first air supply component 5 is preferentially discharged through one of the sampling tubes 2, so that a negative pressure is formed in the other sampling tube 2.
[0033] In some embodiments, the coal powder sampler further includes a sealing element 8, which is disposed at the sampling port 11. The sealing element 8 is used to seal the connection between the sampling tube 2 and the sampling port 11 so that coal powder is not easily ejected from between the sampling port 11 and the sampling tube 2, thereby preventing the sampling port 11 from being blocked and ensuring sampling efficiency.
[0034] In some embodiments, the sealing element 8 includes a second air supply element 81, a sleeve 82, a ventilation pipe 83, and a sealing valve 84. There are at least two sleeves 82 and they are connected to the ventilation pipe 83. At least two sleeves 82 correspond one-to-one with at least two sampling ports 11. The sleeve 82 is sleeved on one end of the sampling pipe 2 and connected to the outer wall of the pulverized coal pipeline 1. One end of the ventilation pipe 83 is connected to the sleeve 82, and the other end of the ventilation pipe 83 is connected to the second air supply element 81. The second air supply element 81 is used to introduce compressed air into the ventilation pipe 83. The compressed air can enter between the sleeve 82 and the sampling pipe 2 through the ventilation pipe 83. The sealing valve 84 is used to control the opening and closing of the ventilation pipe 83.
[0035] Specifically, the inner circumferential surface of the sleeve 82 and the outer circumferential surface of the sampling tube 2 are arranged alternately. One end of the sleeve 82 is connected to the outer wall of the pulverized coal pipeline 1, and the other end of the sleeve 82 extends along the extension direction of the sampling tube 2 and is in an open state. One end of the ventilation pipe 83 is connected to the peripheral wall of the sleeve 82. The second air supply component 81 introduces compressed air into the sleeve 82 through the ventilation pipe 83. The compressed air flowing in the sleeve 82 can seal the gap between the sampling tube 2 and the pulverized coal pipeline 1, making it difficult for pulverized coal to be ejected.
[0036] Specifically, before taking the coal powder, the second air supply component 81 is opened, and compressed air is used to seal the gap between the sampling tube 2 and the coal powder pipeline 1 to prevent coal leakage.
[0037] In some embodiments, the coal powder sampler further includes a motor 91, which is connected to the first gas supply component 5, the second gas supply component 81, the anti-overflow component 4, the control component and the time relay. The motor 91 is used for power supply, saving manpower and facilitating control.
[0038] Specifically, the coal powder sampler also includes a coupling 92, which is connected to the sampling tube 2. The motor 91 is connected to the coupling 92 so that the sampling tube 2 can be pushed into the sampling port 11 and connected to the coal powder pipeline 1 through the coupling 92.
[0039] In some embodiments, the coal powder sampler further includes a connecting pipe 93, one end of which is connected to the first gas supply component 5, and the other end of which is connected to at least two sampling pipes 2.
[0040] In some embodiments, the coal powder sampler further includes a shut-off valve 72, which is disposed on the connecting pipe 93 and is used to control the opening and closing of the connecting pipe 93.
[0041] In some embodiments, the pulverized coal sampler further includes a pressure gauge 94, which is disposed on the connecting pipe 93 and is used to detect the air pressure of the compressed air in the connecting pipe 93.
[0042] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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, an electrical connection, or a connection that allows communication between them; 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0045] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0046] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0047] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.
Claims
1. A coal dust sampler characterized by, include: A pulverized coal pipeline (1) having a sampling port (11); Sampling tube (2), one end of which is connected to the sampling port (11), and the coal powder in the coal powder pipeline (1) can enter the sampling tube (2) through the sampling port (11); A pulverized coal storage tank (3) is connected to the other end of the sampling tube (2), and the pulverized coal in the sampling tube (2) can enter the pulverized coal storage tank (3); An anti-overflow component (4) is provided in the pulverized coal storage tank (3). The pulverized coal storage tank (3) has a preset position. When the pulverized coal in the pulverized coal storage tank (3) reaches the preset position, the anti-overflow component (4) sends a signal and transmits the signal to the control component. The control component controls the sampling tube (2) to stop sampling. A time relay is connected to the control unit, and the time relay can be set to sample at predetermined intervals and to set the sampling time during sampling.
2. The coal sampler of claim 1, wherein, It also includes a first air supply component (5), and there are at least two sampling tubes (2) that are all connected to the first air supply component (5). The first air supply component (5) can supply compressed air into one of the at least two sampling tubes (2), and a negative pressure can be formed in the other of the at least two sampling tubes (2). The coal powder in the coal powder pipeline (1) can enter the coal powder storage tank (3) through the other sampling tube (2).
3. The coal sampler of claim 2, wherein, It also includes a cyclone separator (6) disposed between the other sampling tube (2) and the coal powder storage tank (3), the cyclone separator (6) being used to separate air and coal powder.
4. The coal sampler of claim 2, wherein, It also includes an injection valve (71), which is provided on one of the at least two sampling tubes (2) and is used to control the opening and closing of one of the at least two sampling tubes (2).
5. The coal sampler of claim 2, wherein, It also includes a sealing element (8), which is disposed at the sampling port (11) and is used to seal the connection between the sampling tube (2) and the sampling port (11).
6. The coal powder sampler according to claim 5, characterized in that, The sealing element (8) includes a second air supply element (81), a sleeve (82), a ventilation pipe (83), and a sealing valve (84). There are at least two sleeves (82) and they are connected to the ventilation pipe (83). At least two sleeves (82) correspond one-to-one with at least two sampling ports (11). The sleeve (82) is sleeved on one end of the sampling pipe (2) and connected to the outer wall of the pulverized coal pipeline (1). One end of the ventilation pipe (83) is connected to the sleeve (82), and the other end of the ventilation pipe (83) is connected to the second air supply element (81). The second air supply element (81) is used to introduce compressed air into the ventilation pipe (83). The compressed air can enter between the sleeve (82) and the sampling pipe (2) through the ventilation pipe (83). The sealing valve (84) is used to control the opening and closing of the ventilation pipe (83).
7. The coal powder sampler according to claim 6, characterized in that, It also includes an electric motor (91), which is connected to the first air supply component (5), the second air supply component (81), the anti-overflow component (4), the control component and the time relay, and the electric motor (91) is used for power supply.
8. The coal powder sampler according to claim 2, characterized in that, It also includes a connecting pipe (93), one end of which is connected to the first gas supply component (5), and the other end of which is connected to at least two of the sampling pipes (2).
9. The pulverized coal sampler according to claim 8, characterized in that, It also includes a shut-off valve (72), which is installed on the connecting pipe (93) and is used to control the opening and closing of the connecting pipe (93).
10. The coal powder sampler according to claim 8, characterized in that, It also includes a pressure gauge (94), which is installed on the connecting pipe (93) and is used to detect the air pressure of compressed air in the connecting pipe (93).