CN111175074A - Sampling device - Google Patents
Sampling device Download PDFInfo
- Publication number
- CN111175074A CN111175074A CN202010125395.3A CN202010125395A CN111175074A CN 111175074 A CN111175074 A CN 111175074A CN 202010125395 A CN202010125395 A CN 202010125395A CN 111175074 A CN111175074 A CN 111175074A
- Authority
- CN
- China
- Prior art keywords
- sampling
- auger
- gate valve
- discharge pipe
- sample cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1006—Dispersed solids
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- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Hydrology & Water Resources (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a sampling device which comprises a sampling discharge pipe, a sample cylinder, a gate valve, an auger and a storage bin, wherein a feed inlet of the auger is connected with the side wall of the storage bin, and a discharge outlet of the auger is sequentially connected with the sampling discharge pipe and the sample cylinder; the gate valve is arranged between the sampling discharge pipe and the sample cylinder; the packing auger is also connected with a driving device; the device is simple, and the investment and operation maintenance cost are low; the whole device can realize remote control and is convenient to operate and manage.
Description
Technical Field
The invention belongs to the technical field of boiler analysis sampling, and particularly relates to a sampling device.
Background
According to the GB10184 (utility boiler performance test protocol) requirements: the fuel sample should be taken from a moving stream of raw coal. The effective time of solid fuel sampling is equal to the working time of the boiler test, but the sampling start and end time is properly advanced according to the time required by the fuel from the sampling point to the feeding into the hearth.
Slag sampling should be done continuously or at equal time intervals throughout the test to ensure sample representativeness. The sampling time may depend on the specific method, but the number of sampling times should be not less than 10.
And most of the existing coal sampling devices of power plants are imperfect: if sampling is carried out from a coal feeding belt, the time difference between a sample and actual combustion fuel is large, and the data of the coal for combustion cannot be truly reflected; for example, sampling from the lower part of a coal bunker has poor field environment, continuous sampling is difficult, and the problem that the sampling hole cannot be closed tightly to cause material leakage exists. In addition, fly ash sampling in power plant operation is also imperfect: if sampling is carried out from a dust collector bin pump or an ash conveying pipe, the problems of serious ash leakage, poor environment and the like exist, continuous sampling is difficult to realize, and the sample representativeness is poor, so that the actual operation data deviation is large.
Disclosure of Invention
The invention aims to provide a sampling device, which solves the defect of large deviation of actual operation data of power plant coal caused by the imperfection of the conventional power plant coal sampling device.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a sampling device which comprises a sampling discharge pipe, a sample cylinder, a gate valve, an auger and a storage bin, wherein a feed inlet of the auger is connected with the side wall of the storage bin, and a discharge outlet of the auger is sequentially connected with the sampling discharge pipe and the sample cylinder; the gate valve is arranged between the sampling discharge pipe and the sample cylinder; the packing auger is also connected with a driving device.
Preferably, the driving device comprises a driving motor and a speed reducer, wherein an output shaft of the driving motor is in driving connection with the packing auger through the speed reducer.
Preferably, the gate valve is an electric valve or a pneumatic valve.
Preferably, the device further comprises a controller, and the controller is used for controlling the starting and stopping of the driving motor and the gate valve.
Preferably, the gate valve is also a manual valve.
Preferably, the drive means is also a hand wheel.
Compared with the prior art, the invention has the beneficial effects that:
according to the sampling device provided by the invention, continuous sampling can be realized through the continuous operation of the auger, and the sampling representativeness is strong; the device is connected with the stock bin, so that the construction and the arrangement are convenient; the sampling outlet is provided with a gate valve, the system is closed when the sampling is not carried out, and the environment is good; the device is simple, and the investment and operation maintenance cost are low; the whole device can realize remote control and is convenient to operate and manage.
Drawings
Fig. 1 is a schematic view of the structure of the device according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the sampling device provided by the invention comprises a driving motor 1, a speed reducer 2, a sampling discharge pipe 3, a sample cylinder 4, a gate valve 5, an auger 6 and a storage bin 7, wherein the driving motor 1 is connected with the auger 6 through the speed reducer 2, and the auger 6 is connected with the lateral lower part of the storage bin 7; the material sample is taken out from the storage bin through the rotation of the auger 6 and then enters the sample cylinder 4 through the sampling discharge pipe 3; a gate valve 5 is arranged between the sampling discharge pipe 3 and the sample cylinder 4.
Further, the gate valve 5 may be a manual valve, or may be an electric valve or an air-operated valve.
Furthermore, the whole set of sampling device can be provided with a controller to realize remote control.
The silo 7 is used for storing fuel or fly ash.
The working principle of the invention is as follows:
during sampling, the gate valve 5 is opened, the driving motor 1 is started, and the driving motor drives the auger 6 to rotate through the speed reducer 2; the material enters the screw conveyor 6 from the stock bin 7 under the action of the self gravity and the rotation of the screw conveyor 6, is discharged from the sampling discharge pipe 3 and finally enters the sample cylinder 4.
When the sampling is not carried out, the operation of the packing auger 6 is stopped, the gate valve 5 is closed, the device and the storage bin are in a closed state, and the environment is good.
The invention is convenient to install, transform and maintain. The invention has the advantages of continuous sampling, strong sampling representativeness, convenient construction and arrangement, excellent environment, low investment and maintenance cost and the like.
If continuous sampling is not needed on site, the driving motor 1 can be omitted and the sampling is changed into hand wheel rotation sampling.
The above description is intended to illustrate an embodiment of the present invention, but the present invention is only a preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. All changes and modifications that come within the scope of the invention are desired to be protected.
Claims (6)
1. The sampling device is characterized by comprising a sampling discharge pipe (3), a sample cylinder (4), a gate valve (5), an auger (6) and a storage bin (7), wherein a feed inlet of the auger (6) is connected with the side wall of the storage bin (7), and a discharge outlet of the auger (6) is sequentially connected with the sampling discharge pipe (3) and the sample cylinder (4); the gate valve (5) is arranged between the sampling discharge pipe (3) and the sample cylinder (4); the packing auger (6) is also connected with a driving device.
2. The sampling device according to claim 1, characterized in that the driving device comprises a driving motor (1) and a speed reducer (2), wherein an output shaft of the driving motor (2) is in driving connection with the auger (6) through the speed reducer (2).
3. A sampling device according to claim 2, characterized in that the gate valve (5) is an electric or pneumatic valve.
4. A sampling device according to claim 3, characterized by further comprising a controller for controlling the start and stop of the drive motor (1) and the gate valve (5).
5. A sampling device according to claim 1, characterized in that the gate valve (5) is also a manual valve.
6. A sampler device as claimed in claim 1, wherein the drive means is also a hand wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010125395.3A CN111175074A (en) | 2020-02-27 | 2020-02-27 | Sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010125395.3A CN111175074A (en) | 2020-02-27 | 2020-02-27 | Sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111175074A true CN111175074A (en) | 2020-05-19 |
Family
ID=70647763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010125395.3A Pending CN111175074A (en) | 2020-02-27 | 2020-02-27 | Sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111175074A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114955564A (en) * | 2022-05-13 | 2022-08-30 | 重庆新申世纪新材料科技有限公司 | Purity detection device suitable for battery-grade strontium compound |
-
2020
- 2020-02-27 CN CN202010125395.3A patent/CN111175074A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114955564A (en) * | 2022-05-13 | 2022-08-30 | 重庆新申世纪新材料科技有限公司 | Purity detection device suitable for battery-grade strontium compound |
| CN114955564B (en) * | 2022-05-13 | 2023-05-05 | 重庆新申世纪新材料科技有限公司 | Purity detection device suitable for battery-level strontium compound |
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| SE01 | Entry into force of request for substantive examination |