Automatic anti-blocking positive pressure powder sampling device
By designing an automatic anti-blocking positive pressure powder sample device, automatic sampling of coal powder conveying pipelines is achieved using sampling pipes and driving motors, the problem of inconvenience in sampling in the existing technology is solved, and convenient and low-cost coal powder uniformity detection is achieved.
Patent Information
- Application Number
- CN202421422155.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-06-20
AI Technical Summary
The prior art is difficult to automatically and conveniently sample the coal powder conveying pipelines of the power plant, resulting in high maintenance costs and difficulty in ensuring the uniformity of the coal powder.
An automatic anti-blocking positive pressure powder sample device is designed, including a sampling tube, a sampling rod and a driving motor. The reciprocating movement of the sampling rod is realized by meshing the driving gear with the tooth segment, and the automatic sampling is taken and the structure is simple.
It realizes automated and convenient coal powder sampling, reduces maintenance costs, ensures the uniformity of coal powder conveying pipelines, and improves combustion efficiency.
Smart Images
Figure CN223166375U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an automatic anti-blocking positive-pressure powder sampling device, belonging to the technical field of sampling devices for pulverized coal conveying systems in power plants. Background Art
[0002] Power plants use pulverized coal as fuel. The pulverized coal uniformity index is an indicator to measure the degree of uniform mixing of pulverized coal. The larger its value, the better the uniformity of pulverized coal. Generally speaking, the value of the pulverized coal uniformity index should be greater than 0.8 to ensure that the pulverized coal can burn evenly during the combustion process, reducing the possibility of incomplete combustion and slagging. The pulverized coal uniformity index directly affects the combustion efficiency of pulverized coal. Therefore, it is necessary to regularly check its uniformity before fuel combustion. Content of the Utility Model
[0003] The purpose of the utility model is to provide an automatic anti-blocking positive-pressure powder sampling device, which can automatically sample pulverized coal, improve the pulverized coal conveying pipeline, sample from the pulverized coal conveying pipeline, and has the advantages of simple structure, convenient operation, and low maintenance cost.
[0004] To solve the above technical problems, the utility model adopts the following technical solutions:
[0005] An automatic anti-blocking positive-pressure powder sampling device is arranged on the pulverized coal conveying pipeline. A horizontally arranged sampling pipe is arranged on the pulverized coal conveying pipeline, and the sampling pipe is communicated with the pulverized coal conveying pipeline; it further includes a sampling rod, which includes a sampling section, a limiting section, and a toothed section connected in sequence. The sampling section is located inside the sampling pipe. The diameter of the limiting section is larger than the inner diameter of the sampling pipe, and the sampling section has a sampling groove; the toothed section has teeth, and the teeth of the toothed section mesh with a driving gear. The driving gear is located above the toothed section and is installed on the output shaft of a driving motor.
[0006] In the above-mentioned automatic anti-blocking positive-pressure powder sampling device, the pulverized coal conveying pipeline includes a vertical section and a horizontal section. The vertical section is attached to the wall, and the connection between the vertical section and the horizontal section is communicated with the sampling pipe.
[0007] In the above-mentioned automatic anti-blocking positive-pressure powder sampling device, a fixing plate is fixed on the wall, a fixing frame is fixed on the fixing plate, a mounting plate is fixed on the fixing frame, the driving motor is installed on the mounting plate, and the sampling rod is located between the fixing plate and the driving motor.
[0008] In the above-mentioned automatic anti-blocking positive-pressure powder sampling device, the toothed section is located in a limiting groove, the limiting groove is fixed on the fixing plate, the teeth of the toothed section are located on the upper surface of a toothed belt, and the driving gear meshes with the teeth of the toothed section.
[0009] In the aforementioned automatic anti-blocking and positive-pressure powder sampling device, the sampling section is detachably arranged on the limiting section, and the sampling section is arranged on the limiting section by means of threads.
[0010] Compared with the prior art, the utility model can automatically sample pulverized coal, improve the pulverized coal conveying pipeline, and sample from the pulverized coal conveying pipeline, having the advantages of simple structure, convenient operation, low maintenance cost, etc. Description of the Drawings
[0011] Figure 1 is a schematic structural diagram of an embodiment of the utility model;
[0012] Figure 2 is Figure 1 a schematic structural diagram from another perspective;
[0013] Figure 3 is a schematic structural diagram of an embodiment of the sampling rod.
[0014] Reference numerals: 1 - fixing plate, 2 - fixing frame, 3 - mounting plate, 4 - sampling rod, 5 - driving motor, 6 - sampling pipe, 7 - horizontal section, 8 - conveying pipeline, 9 - vertical section, 10 - driving gear, 11 - toothed section, 12 - limiting section, 13 - sampling groove, 14 - sampling section.
[0015] The following further describes the utility model in conjunction with the drawings and specific embodiments. Specific Embodiments
[0016] Embodiment 1 of the utility model: An automatic anti-blocking and positive-pressure powder sampling device is arranged on the pulverized coal conveying pipeline 8. A horizontally arranged sampling pipe 6 is arranged on the pulverized coal conveying pipeline 8, and the sampling pipe 6 is communicated with the pulverized coal conveying pipeline 8; it further includes a sampling rod 4. The sampling rod 4 includes a sampling section 14, a limiting section 12, and a toothed section 11 connected in sequence. The sampling section 14 is located inside the sampling pipe 6. The diameter of the limiting section 12 is larger than the inner diameter of the sampling pipe 6. The sampling section 14 has a sampling groove 13; the toothed section 11 has teeth, and the teeth of the toothed section 11 are engaged with a driving gear 10. The driving gear 10 is located above the toothed section 11, and the driving gear 10 is installed on the output shaft of a driving motor 5.
[0017] Embodiment 2: An automatic anti-blocking and positive-pressure powder sampling device is arranged on the pulverized coal conveying pipeline 8. A horizontally arranged sampling pipe 6 is arranged on the pulverized coal conveying pipeline 8, and the sampling pipe 6 is communicated with the pulverized coal conveying pipeline 8. It further includes a sampling rod 4. The sampling rod 4 includes a sampling section 14, a limiting section 12, and a toothed section 11 connected in sequence. The sampling section 14 is located inside the sampling pipe 6. The diameter of the limiting section 12 is larger than the inner diameter of the sampling pipe 6. The sampling section 14 has a sampling groove 13. The toothed section 11 has teeth, and the teeth of the toothed section 11 mesh with the driving gear 10. The driving gear 10 is located above the toothed section 11, and the driving gear 10 is installed on the output shaft of the driving motor 5.
[0018] The pulverized coal conveying pipeline 8 includes a vertical section 9 and a horizontal section 7. The vertical section 9 is attached to the wall, and the connection between the vertical section 9 and the horizontal section 7 is communicated with the sampling pipe 6. A fixing plate 1 is fixed on the wall. A fixing frame 2 is fixed on the fixing plate 1. An installation plate 3 is fixed on the fixing frame 2. The driving motor 5 is installed on the installation plate 3. The sampling rod 4 is located between the fixing plate 1 and the driving motor 5.
[0019] The toothed section 11 is located in the limiting groove. The limiting groove is fixed on the fixing plate 1. The teeth of the toothed section 11 are located on the upper surface of the toothed belt, and the driving gear 10 meshes with the teeth of the toothed section 11. The sampling section 14 is detachably arranged on the limiting section 12, and the sampling section 14 is arranged on the limiting section 12 by threads.
[0020] The working principle of an embodiment of the present utility model: The driving motor 5 drives the driving gear 10 to rotate forward and backward, driving the sampling rod 4 to reciprocate. The pulverized coal in the conveying pipeline 8 is taken out through the sampling groove 13 of the sampling section 14. The length of the sampling section 14 is equal to the length of the sampling pipe 6. In the non-use state, the sampling section 14 is located inside the sampling pipe 16 and will not affect the transportation of pulverized coal.
Claims
1. An automatic anti-blocking and positive-pressure powder sample taking device is arranged on a pulverized coal conveying pipeline (8), and is characterized in that, A sampling pipe (6) is horizontally arranged on the pulverized coal conveying pipeline (8), and the sampling pipe (6) is communicated with the pulverized coal conveying pipeline (8); further comprising a sampling rod (4), the sampling rod (4) includes a sampling section (14), a limiting section (12) and a toothed section (11) connected in sequence, the sampling section (14) is located in the sampling pipe (6), the diameter of the limiting section (12) is larger than the inner diameter of the sampling pipe (6), and a sampling groove (13) is formed on the sampling section (14); the toothed section (11) has teeth, and the teeth of the toothed section (11) are meshed with a driving gear (10), the driving gear (10) is located above the toothed section (11), and the driving gear (10) is installed on the output shaft of a driving motor (5).
2. The automatic anti-blocking and positive-pressure powder sampling device according to claim 1, characterized in that The pulverized coal conveying pipeline (8) includes a vertical section (9) and a horizontal section (7), the vertical section (9) is attached to the wall, and the connection between the vertical section (9) and the horizontal section (7) is communicated with the sampling pipe (6).
3. The automatic anti-blocking and positive-pressure powder sampling device according to claim 2, characterized in that, A fixing plate (1) is fixed on the wall, a fixing frame (2) is fixed on the fixing plate (1), a mounting plate (3) is fixed on the fixing frame (2), the driving motor (5) is installed on the mounting plate (3), and the sampling rod (4) is located between the fixing plate (1) and the driving motor (5).
4. An automatic anti-blocking and positive-pressure powder sampling device according to claim 3, characterized in that, The toothed section (11) is located in a limiting groove, the limiting groove is fixed on the fixing plate (1), the teeth of the toothed section (11) are located on the upper surface of a toothed belt, and the driving gear (10) is meshed with the teeth of the toothed section (11).
5. The automatic anti-blocking and positive-pressure powder sample taking device according to claim 4, wherein The sampling section (14) is detachably arranged on the limiting section (12), and the sampling section (14) is arranged on the limiting section (12) by threads.