CN220339750U - Manual coal dust sampling device - Google Patents
Manual coal dust sampling device Download PDFInfo
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- CN220339750U CN220339750U CN202320260684.3U CN202320260684U CN220339750U CN 220339750 U CN220339750 U CN 220339750U CN 202320260684 U CN202320260684 U CN 202320260684U CN 220339750 U CN220339750 U CN 220339750U
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- sampling
- pipeline
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- coal dust
- door
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- 238000005070 sampling Methods 0.000 title claims abstract description 84
- 239000002817 coal dust Substances 0.000 title claims abstract description 41
- 239000003245 coal Substances 0.000 claims abstract description 21
- 238000010926 purge Methods 0.000 claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract 2
- 239000002131 composite material Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
A manual coal dust sampling device. The existing pulverized coal sampling device of the power plant has complex equipment, poor reliability, long sampling time and poor effect, and is difficult to achieve the target pulverized coal sampling. The composition of the utility model comprises: the device comprises a sampling pipeline (2), a purging pipeline (3), a cyclone separator (5) and an air discharge pipeline (6), wherein a sampling port of the sampling pipeline is positioned in a sampled coal powder pipeline, and the sampling pipeline enters the cyclone separator after passing through a sampling manual door (2.1) and a first check door (2.2); the purging pipeline is connected to the sampling pipeline and is positioned between the sampling manual door and the first check door; one end of the air discharge pipeline is connected with the exhaust port of the cyclone separator, and the other end of the air discharge pipeline is positioned in the sampled pulverized coal pipeline. And a power air exhaust device is arranged on the sampling pipe. The utility model is used for manually sampling the pulverized coal.
Description
Technical Field
The utility model relates to a manual coal dust sampling device.
Background
The coal dust sampling device is widely applied to power plants, and in the production process, in order to detect the coal grinding effect of the coal mill and the good operation of the dynamic separator, the coal dust sampling is required to be carried out on an outlet pipeline of the coal mill in the operation. The existing coal dust sampling device of the power plant is a full-automatic coal dust sampling device, a venturi tube is used for pushing the coal dust tube by a driving motor, negative pressure is formed by taking gas for a meter as a power gas source, coal dust in the coal dust tube is sucked out, then the coal dust is filtered out by a filter, and the raw coal dust tube is discharged back in an exhaust mode.
Disclosure of Invention
The utility model aims to make up the defects of the prior art and provides a manual coal dust sampling device.
The above object is achieved by the following technical scheme:
a manual coal dust sampling device, which comprises the following components: the device comprises a sampling pipeline, a purging pipeline, a cyclone separator and an air discharge pipeline, wherein a sampling port of the sampling pipeline is positioned in a sampled coal powder pipeline, and the sampling pipeline enters the cyclone separator after passing through a sampling manual door and a first check door; the purging pipeline is connected to the sampling pipeline and is positioned between the sampling manual door and the first check door;
one end of the air discharge pipeline is connected with the exhaust port of the cyclone separator, and the other end of the air discharge pipeline is positioned in the sampled pulverized coal pipeline.
And a power air exhaust device is arranged on the sampling pipe.
The manual coal dust sampling device is characterized in that the power air extracting device is a piston type movable cylinder.
The manual sampling device for pulverized coal is characterized in that the sampling pipeline is provided with a horizontal section and a downward inclined section, and the piston type movable cylinder is arranged on the downward inclined section of the sampling pipeline and is positioned between the first check valve and the second check valve.
And the bottom of the cyclone separator is provided with a coal dust discharge manual door.
Advantageous effects
1. The utility model relates to a manual sampling device, which is characterized in that a piston type movable cylinder pull rod is pulled to sample, a first check valve is closed when the pull rod is pushed inwards, a second check valve is opened, coal dust airflow is separated through a cyclone separator, coal dust falls into a sampling bottle, air is discharged into a coal dust pipe through an air discharge pipeline, the coal dust sampling time can be effectively shortened, the device is simple and easy to operate, and the working efficiency of a production site is effectively improved.
2. The utility model is provided with the purging pipeline, so that the sampling pipeline can be purged before sampling to remove accumulated coal dust in the inlet pipeline, and purged after sampling to remove residual coal dust in the device, thereby preventing the sampling pipeline from being blocked, ensuring the coal dust sampling amount and effectively shortening the coal dust sampling time.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
in the figure: 1. a sampled pulverized coal pipe; 2. a sampling pipeline; 2.1, a sampling manual door; 2.2, a first check door; 2.3 a second check gate; 3. purging the pipeline; 3.1, purging a manual door; 4. a movable cylinder; 4.1, a filter screen; 5. a cyclone separator; 5.1, a coal dust discharging manual door; 5.2, sampling bottle; 6. an air discharge line; 6.1, an air discharge manual door.
Detailed Description
Examples
A manual coal dust sampling device, which comprises the following components: the device comprises a sampling pipeline 2, a purging pipeline 3, a cyclone separator 5 and an air discharge pipeline 6, wherein a sampling port of the sampling pipeline is positioned in a sampled pulverized coal pipeline, and the sampling pipeline enters the cyclone separator after passing through a sampling manual door 2.1 and a first check door 2.2; the purging pipeline is connected to the sampling pipeline and is positioned between the sampling manual door and the first check door, and a gas source of the purging pipeline is compressed air; the on-off of a purging air source is controlled through a purging manual door 3.1;
one end of the air discharge pipeline is connected with the exhaust port of the cyclone separator, and the other end of the air discharge pipeline is positioned in the sampled pulverized coal pipeline.
And a power air exhaust device is arranged on the sampling pipe.
The power air extracting device is a piston type movable cylinder.
The sampling pipeline is provided with a horizontal section and a downward inclined section, and the piston type movable cylinder is arranged on the downward inclined section of the sampling pipeline and is positioned between the first check valve and the second check valve 2.3.
The bottom of the cyclone separator is provided with a coal dust discharge manual door 5.1 which can be connected with a sampling bottle for coal dust sampling. In the sampling process, pulverized coal is separated by a cyclone separator and falls into a sampling bottle, and air is discharged from the top; the air discharge pipeline discharges the separated air in the pulverized coal pipe after passing through the air discharge manual door. The movable cylinder is arranged on the downward inclined pipeline, and the inlet is provided with a filter screen 4.1 for filtering pulverized coal particles.
The working flow of the manual coal powder sampling device is as follows:
1. purging before sampling: before working, the air discharge manual door and the coal dust discharge manual door are kept closed, the sampling manual door is opened, and the purging manual door is opened to purge and remove the accumulated coal dust in the inlet pipeline;
2. sampling coal powder: closing a purging manual door, opening an air discharging manual door and a coal dust discharging manual door, placing a coal dust sampling bottle, pulling a power part pull rod to sample, opening a first check valve when the pull rod is pulled outwards, closing a second check valve, closing the first check valve when the pull rod is pushed inwards, opening the second check valve, separating coal dust airflow through a cyclone separator, enabling coal dust to fall into the sampling bottle, and discharging air into a coal dust pipe through an air discharging pipeline;
3. purging after sampling: after sampling is finished, the discharging manual door is kept to be opened, the sampling manual door is closed, the coal dust discharging manual door is closed, and the purging manual door is opened to purge the device to remove residual coal dust of the device.
Through this manual operation buggy sampling device, can effectively shorten buggy sampling time, and equipment is simple easy to operate, effectively improves production field work efficiency.
Claims (2)
1. A manual coal dust sampling device is characterized in that: the composition of the composite material comprises: the device comprises a sampling pipeline, a purging pipeline, a cyclone separator and an air discharge pipeline, wherein a sampling port of the sampling pipeline is positioned in a sampled coal powder pipeline, and the sampling pipeline enters the cyclone separator after passing through a sampling manual door and a first check door; the purging pipeline is connected to the sampling pipeline and is positioned between the sampling manual door and the first check door;
one end of the air discharge pipeline is connected with the exhaust port of the cyclone separator, and the other end of the air discharge pipeline is positioned in the sampled coal powder pipeline;
the sampling pipe is provided with a power air exhaust device;
the power air extracting device is a piston type movable cylinder;
the sampling pipeline is provided with a horizontal section and a downward inclined section, the piston type movable cylinder is arranged on the downward inclined section of the sampling pipeline and is positioned between the first check valve and the second check valve, and a filter screen is arranged at the inlet of the piston type movable cylinder.
2. The manual coal dust sampling device according to claim 1, wherein: the bottom of the cyclone separator is provided with a coal dust discharge manual door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320260684.3U CN220339750U (en) | 2023-02-20 | 2023-02-20 | Manual coal dust sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320260684.3U CN220339750U (en) | 2023-02-20 | 2023-02-20 | Manual coal dust sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220339750U true CN220339750U (en) | 2024-01-12 |
Family
ID=89447195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320260684.3U Active CN220339750U (en) | 2023-02-20 | 2023-02-20 | Manual coal dust sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220339750U (en) |
-
2023
- 2023-02-20 CN CN202320260684.3U patent/CN220339750U/en active Active
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