CN219977852U - Pulverized coal sampling, measuring and circulating device - Google Patents
Pulverized coal sampling, measuring and circulating device Download PDFInfo
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- CN219977852U CN219977852U CN202320473898.9U CN202320473898U CN219977852U CN 219977852 U CN219977852 U CN 219977852U CN 202320473898 U CN202320473898 U CN 202320473898U CN 219977852 U CN219977852 U CN 219977852U
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- 238000005070 sampling Methods 0.000 title claims abstract description 79
- 239000003245 coal Substances 0.000 title claims abstract description 46
- 239000000843 powder Substances 0.000 claims abstract description 54
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000010926 purge Methods 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 239000002817 coal dust Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 3
- 239000000284 extract Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The utility model relates to a pulverized coal sampling, measuring and circulating device, which comprises: the device comprises a wind powder pipeline, a sampler, a separator and an air extractor, wherein one end of the sampler can be inserted into the wind powder pipeline, the sampler is communicated with the separator through a first pipeline, the separator is communicated with the air extractor through a second pipeline, and the air extractor is communicated with the wind powder pipeline through a third pipeline; the sampler includes: the air-powder sampling device comprises a sampling gun and a propelling mechanism, wherein one end of the sampling gun is inserted into an air-powder pipeline, and the other end of the sampling gun is connected with the propelling mechanism, so that the sampling gun can radially move in the air-powder pipeline. The problem of unstable sampling causes the precision to be poor when having avoided manual operation sampler, easy operation is high-efficient, and the device is simple and reliable. Meanwhile, the air exhaust pipeline is also communicated with the air powder pipeline, so that the measured coal powder can return into the air powder pipeline, pollution caused by the coal powder is avoided, waste is reduced, and the practicability of the device is improved.
Description
Technical Field
The utility model relates to the technical field of air pipeline pulverized coal sampling, in particular to a pulverized coal sampling, measuring and circulating device.
Background
The pulverized coal ground by the coal mill needs to measure the fineness of the pulverized coal. The fineness of the pulverized coal is measured after the pulverized coal ground by a coal mill is sampled. The coal dust sampling of the coal mill needs to be carried out on a primary air pipeline of an outlet of the coal mill. The primary air of the coal mill is a mixture of air and coal dust, the coal dust in the primary air needs to be separated, sampling is carried out at different positions of the section of the primary air pipeline, and the representativeness of sampling is ensured, so that proper adjustment and maintenance of boiler equipment are carried out, and the safety of a boiler and the running economy of a power plant are improved. Coal dust sampling is becoming a key technology for energy conservation and emission reduction of power plants.
Currently, power station boiler primary air pulverized coal concentration sampling usually adopts a handheld pitot tube as a sampler for manual sampling, resulting in poor accuracy. Meanwhile, the measured coal dust is improperly treated, so that the problems of pollution and the like are caused.
Disclosure of Invention
The utility model provides a pulverized coal sampling and measuring circulating device, which aims to solve the problems of poor pulverized coal sampling precision and pollution caused by improper pulverized coal treatment after measurement in the prior art.
The utility model provides a pulverized coal sampling and measuring circulating device for realizing the purpose, which comprises the following components: the device comprises a wind powder pipeline, a sampler, a separator and an air extractor, wherein one end of the sampler can be inserted into the wind powder pipeline, the sampler is communicated with the separator through a first pipeline, the separator is communicated with the air extractor through a second pipeline, and the air extractor is communicated with the wind powder pipeline through a third pipeline;
the sampler includes: a sampling gun and a propulsion mechanism;
one end of the sampling gun is inserted into the air powder pipeline, and the other end of the sampling gun is connected with a propelling mechanism, so that the sampling gun can radially move in the air powder pipeline.
In some embodiments thereof, the method comprises:
the base is arranged in a hollow way, and one end of the base is connected with the wind powder pipeline and communicated with the wind powder pipeline;
the sampling gun passes through the other end of the base and enters the wind powder pipeline, so that the sampling gun can radially move into the base;
the air extractor is connected with the side wall of the base through a third pipeline and is communicated with the side wall of the base.
In some embodiments thereof, the method comprises:
the sealing sleeve is connected with the bottom of the base, and the side wall is communicated with the compression pipeline;
the compressed air isolation valve is also arranged on the compressed pipeline.
In some embodiments, the compression conduit communicates with the first conduit through a fifth conduit;
a purging valve group is arranged between the fifth pipeline and the first pipeline.
In some embodiments, the purge valve assembly comprises:
the first purge valve is arranged on the fifth pipeline;
the second purge valve is arranged on the first pipeline at one side of the fifth pipeline;
the third purge valve is arranged on the first pipeline at the other side of the fifth pipeline.
In some embodiments, the separator comprises:
a first separator in communication with the first conduit and the fourth conduit, respectively;
and the second separator is respectively communicated with the fourth pipeline and the second pipeline.
In some embodiments, the tip of the sampling gun is curved;
the gun head of the sampling gun is arranged opposite to the flow direction in the wind powder pipeline.
In some embodiments, the bottom of the sampling gun is also provided with a horizontal needle.
In some embodiments, the needle tip direction of the horizontal needle is the same as the gun tip direction.
In some embodiments, the bottom of the sampling gun is provided with a bracket.
The utility model has the beneficial effects that:
the sampler comprises a sampling gun, wherein one end of the sampling gun is provided with a propelling mechanism, and the other end of the sampling gun is arranged in the wind powder pipeline, so that the sampling gun can radially move in the wind powder pipeline. The operating personnel only need control advancing mechanism to sample the buggy in the wind powder pipeline can, avoided the unstable problem that causes the precision to be poor of sample when the manual operation sampler, easy operation is high-efficient, and the device is simple reliable. Meanwhile, the air exhaust pipeline is also communicated with the air powder pipeline, so that the measured coal powder can return into the air powder pipeline, pollution caused by the coal powder is avoided, waste is reduced, and the practicability of the device is improved.
Drawings
FIG. 1 is a schematic diagram of a pulverized coal sampling and measuring circulating device;
fig. 2 is an enlarged view of the structure of the region a in fig. 1.
110, wind powder pipeline in the drawing; 120. a sampler; 121. a sampling gun; 122. a propulsion mechanism; 130. a first pipe; 140. a separator; 141. a first separator; 142. a second separator; 150. a second pipe; 160. an air extractor; 170. a third conduit; 180. a base; 190. sealing sleeve; 210. compressing the pipeline; 220. a compressed air isolation valve; 230. a fifth pipe; 240. purging the valve group; 241. a first purge valve; 242. a second purge valve; 243. a third purge valve; 250. a horizontal needle; 260. a bracket; 270. and a fourth pipeline.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Examples of the embodiments are illustrated in the accompanying drawings, wherein like or similar symbols indicate like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "top," "bottom," "inner," "outer," "axis," "circumferential," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience in describing the present utility model or simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," "engaged," "hinged," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 and 2, a pulverized coal sampling and measuring circulating apparatus includes: wind powder pipeline 110, sampler 120, separator 140, air extractor 160, but sampler 120 one end inserts wind powder pipeline 110, and sampler 120 communicates with separator 140 through first pipeline 130, and separator 140 communicates with air extractor 160 through second pipeline 150, and air extractor 160 communicates with wind powder pipeline 110 through third pipeline 170, and sampler 120 includes: the air-powder sampling device comprises a sampling gun 121 and a propelling mechanism 122, wherein one end of the sampling gun 121 is inserted into the air-powder pipeline 110, and the other end of the sampling gun 121 is connected with the propelling mechanism 122, so that the sampling gun 121 can radially move in the air-powder pipeline 110.
Specifically, after the pulverized coal is sampled in the air-pulverized coal pipe 110 by the sampler 120, the pulverized coal sequentially flows through the sampling gun 121: the first pipeline 130, the separator 140, the second pipeline 150 and the air extractor 160, the air extractor 160 extracts the pulverized coal, the air extractor 160 in the embodiment extracts the pulverized coal by adopting a micro air extracting pump, then the pulverized coal is taken out and put into the third pipeline 170 after being measured, and finally the third pipeline 170 returns to the air powder pipeline 110 to complete circulation, so that the pulverized coal is prevented from being unable to be treated, pollution is avoided, waste is reduced, and the practicability of the device is improved. Meanwhile, the sampler 120 includes: sampling gun 121 and advancing mechanism 122, wherein, the inside of air inlet powder pipeline 110 has been inserted to the one end of sampling gun 121 carries out the buggy sample, advancing mechanism 122 sets up the bottom at the other end of sampling gun 121, make sampling gun 121 can radially remove in air powder pipeline 110 inside, ensure the comprehensiveness of sample, moreover, operating personnel only need control advancing mechanism 122 sample the wind powder in the air powder pipeline 110 can, the unstable sample has been avoided when thinking operating sampler 120, lead to sampling gun 121 to take place the skew, cause sampling precision poor, waste time and energy's problem, advancing mechanism 122 in this embodiment can adopt mechanisms such as miniature cylinder, therefore, the device easy operation is high-efficient, the device overall structure is simple and reliable, the fault rate is low, use cost has been reduced, the in-process of daily use for operating personnel has brought very big facility.
In some embodiments of the utility model, the method comprises: the base 180, the base 180 cavity sets up, and one end is connected with wind powder pipeline 110, and communicates. The sampling gun 121 passes through the other end of the base 180 and enters the wind powder pipeline 110, so that the sampling gun 121 can radially move into the base 180, and the air extractor 160 is connected and communicated with the side wall of the base 180 through the third pipeline 170. Specifically, the base 180 is hollow, the top is communicated with the air powder pipeline 110, the bottom is provided with a through hole for the sampling gun 121 to pass through, when the sampling gun 121 does not operate, the gun head of the sampling gun 121 can be radially moved to the inside of the base 180, the sealing performance of the device can be improved by the base 180, the base 180 is also communicated with the third pipeline 170, and the pulverized coal in the third pipeline 170 enters the base 180 and returns to the air powder pipeline 110.
In some embodiments of the utility model, the method comprises: seal 190, seal 190 is connected with the bottom of base 180, and the lateral wall communicates with compression pipe 210, and compression pipe 210 communicates with first pipe 130. Specifically, the top of the sealing sleeve 190 is connected with the bottom of the base 180, the bottom can be penetrated by the sampling gun 121, the side wall of the sealing sleeve 190 is communicated with one end of the compression pipe 210, the other end of the compression pipe 210 can be communicated with the compressed air storage tank, and compressed air is provided for the sealing sleeve, so that the compressed air can flow into the sealing sleeve 190. The compressed air isolation valve 220 is also provided on the compressed pipe 210 for controlling the flow rate and opening/closing of the compressed air. Gaps are reserved between the side walls of the sampling gun 121 and the bottoms of the sealing sleeve 190 and the base 180 respectively, and can be sealed and isolated by compressed air in the sealing sleeve 190, so that the tightness of the device is ensured, and the device is prevented from malfunctioning.
In some embodiments of the present utility model, the compression conduit 210 communicates with the first conduit 130 through a fifth conduit 230, and a purge valve block 240 is disposed between the fifth conduit 230 and the first conduit 130. The purge valve block 240 includes: the first purge valve 241, the second purge valve 242 and the third purge valve 243, wherein the first purge valve 241 is disposed on the fifth pipe 230, the second purge valve 242 is disposed on the first pipe 130 on one side of the fifth pipe 230, and the third purge valve 243 is disposed on the first pipe 130 on the other side of the fifth pipe 230. Specifically, the fifth pipeline 230 and the first pipeline 130 are back-blown by compressed gas, and the purge valves arranged in the fifth pipeline 230 and the first pipeline 130 can collect accumulated powder in the pipeline, so that the accumulated powder in the pipeline is cleaned, and the problems of blockage and the like of the pipeline are avoided, so that the device is disabled.
In some embodiments of the present utility model, separator 140 comprises: a first separator 140 and a second separator 140, wherein the first separator 140 is in communication with the first conduit 130 and the fourth conduit 270, respectively, and the second separator 140 is in communication with the fourth conduit 270 and the second conduit 150, respectively. The separation efficiency of the wind coal powder is close to 99% after the coal powder is separated by the two-stage separator 140, and compared with the one-time separation, the separation quality is greatly improved.
In some embodiments of the present utility model, the gun head of the sampling gun 121 is bent, and the gun head of the sampling gun 121 is disposed opposite to the pulverized coal flow direction in the air-pulverized pipe 110. The bottom of the sampling gun 121 is also provided with a horizontal needle 250. The needle direction of the horizontal needle 250 is the same as the gun direction. The horizontal needle 250 can be used to judge whether the muzzle of the gun head is aligned with the flow direction of the pulverized coal, so that the practicability of the device is further improved.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "examples," "particular examples," "one particular embodiment," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The present utility model is not limited to the above preferred embodiments, and any person skilled in the art, within the scope of the present utility model, may apply to the present utility model, and equivalents and modifications thereof are intended to be included in the scope of the present utility model.
Claims (10)
1. A coal dust sampling measurement circulation device, comprising: the device comprises a wind powder pipeline, a sampler, a separator and an air extractor, wherein one end of the sampler can be inserted into the wind powder pipeline, the sampler is communicated with the separator through a first pipeline, and the separator is communicated with the air extractor through a second pipeline;
the sampler comprises: a sampling gun and a propulsion mechanism;
one end of the sampling gun is inserted into the air powder pipeline, and the other end of the sampling gun is connected with the propelling mechanism, so that the sampling gun can radially move in the air powder pipeline.
2. The pulverized coal sampling measuring and circulating device according to claim 1, characterized by comprising:
the base is arranged in a hollow way, and one end of the base is connected with the wind powder pipeline and communicated with the wind powder pipeline;
the sampling gun passes through the other end of the base and enters the wind powder pipeline, so that the sampling gun can radially move into the base;
the air extractor is connected with the side wall of the base through a third pipeline and is communicated with the side wall of the base.
3. The pulverized coal sampling measuring and circulating device as claimed in claim 2, including:
the sealing sleeve is connected with the bottom of the base, and the side wall is communicated with the compression pipeline;
and the compressed pipeline is also provided with a compressed air isolation valve.
4. A pulverized coal sampling measuring circulating apparatus according to claim 3, characterized in that the compression pipe is in communication with the first pipe through a fifth pipe;
and a purging valve group is arranged between the fifth pipeline and the first pipeline.
5. The pulverized coal sampling and measuring circulating device according to claim 4, wherein the purge valve group comprises:
the first purge valve is arranged on the fifth pipeline;
the second purge valve is arranged on the first pipeline at one side of the fifth pipeline;
and the third purge valve is arranged on the first pipeline at the other side of the fifth pipeline.
6. The pulverized coal sampling measuring circulating apparatus as set forth in claim 1, wherein the separator includes:
a first separator in communication with the first and fourth conduits, respectively;
and the second separator is respectively communicated with the fourth pipeline and the second pipeline.
7. The pulverized coal sampling measuring cycle device according to claim 1, wherein a gun head of the sampling gun is provided in a curved manner;
the gun head of the sampling gun is opposite to the flow direction in the wind powder pipeline.
8. The pulverized coal sampling and measuring circulating device according to claim 7, wherein the bottom of the sampling gun is further provided with a horizontal needle.
9. The pulverized coal sampling measuring circulating apparatus as set forth in claim 8, wherein a needle head direction of the horizontal needle is the same as the gun head direction.
10. The pulverized coal sampling and measuring circulating device according to claim 1, wherein a bracket is arranged at the bottom of the sampling gun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320473898.9U CN219977852U (en) | 2023-03-09 | 2023-03-09 | Pulverized coal sampling, measuring and circulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320473898.9U CN219977852U (en) | 2023-03-09 | 2023-03-09 | Pulverized coal sampling, measuring and circulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219977852U true CN219977852U (en) | 2023-11-07 |
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|---|---|---|---|
| CN202320473898.9U Active CN219977852U (en) | 2023-03-09 | 2023-03-09 | Pulverized coal sampling, measuring and circulating device |
Country Status (1)
| Country | Link |
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| CN (1) | CN219977852U (en) |
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- 2023-03-09 CN CN202320473898.9U patent/CN219977852U/en active Active
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