CN112924242A - Continuous sampling device for gas conveying pipeline and operation method thereof - Google Patents
Continuous sampling device for gas conveying pipeline and operation method thereof Download PDFInfo
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- CN112924242A CN112924242A CN202110291591.2A CN202110291591A CN112924242A CN 112924242 A CN112924242 A CN 112924242A CN 202110291591 A CN202110291591 A CN 202110291591A CN 112924242 A CN112924242 A CN 112924242A
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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
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
- G01N1/2035—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping
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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
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
- G01N1/2035—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping
- G01N2001/205—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping using a valve
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Abstract
The invention relates to the technical field of powdery material sampling, in particular to a continuous sampling device for a gas conveying pipeline, which comprises: a gas conveying sample pipeline, a flow guide pipe, a pneumatic stirring pipeline, an aggregate container and a discharge port; the gas conveying sample pipeline is integrally and obliquely arranged, a flow guide pipe is arranged in the middle of the gas conveying sample pipeline and connected with one side of the upper half part of the collecting container, a pneumatic stirring pipeline is arranged at the top of the collecting container, and the collecting container is funnel-shaped and is provided with a discharge port at the bottom; the invention reduces the consumption of sampling consumables, accurately and controllably collects samples, improves the quality of sample test, reduces the cost and improves the sampling efficiency.
Description
Technical Field
The invention relates to the technical field of powdery material sampling, in particular to a continuous sampling device for a gas conveying pipeline and an operation method thereof.
Background
The gas conveying is to convey powdery materials in a closed pipeline along the direction of gas flow by utilizing the energy of the gas flow, and is a specific application of the fluidization technology. The gas conveying application is wide, taking metallurgical quicklime powder of a steel plant as an example, the quicklime powder for sintering production is transported to a use site by a tank truck and directly conveyed to a quicklime storage bin for standby by a gas conveying pipeline. The quality of the quicklime powder directly influences the sintering production process and the product quality, so that the relevant physical and chemical indexes need to be sampled and tested at regular intervals, and the lime proportioning and the production operation are adjusted according to the detection result. To ensure the accuracy of the detection result, the representative sample is ensured first, and then the production can be better guided and serviced. The initial sampling mode is manual sampling at the top cover of the tank car, and the tank car is large in depth and can only sample on the surface layer generally, so that the sampling is lack of representativeness, and the accuracy of physical and chemical index detection is seriously influenced; the sampling tube sample is adopted to the back, though can get the sample of jar body deeper, but also can only locate the sample at the top cap, does not possess the representativeness equally, and the sampling tube adopts mechanical revolution mechanic in addition, and the fault rate is high, often uses the sampling tube just need to be changed for two times, and the sampling tube consumes many and with high costs.
Disclosure of Invention
The invention aims to reduce the consumption of sampling consumables, accurately and controllably collect samples, improve the quality of sample tests, reduce the cost and improve the sampling efficiency.
In order to achieve the purpose, the invention provides the following technical scheme:
a continuous sampling device for a gas delivery pipeline, comprising: a gas conveying sample pipeline (2), a flow guide pipe (3), a pneumatic stirring pipeline (5), an aggregate container (8) and a discharge port (9); the gas conveying sample pipeline (2) is integrally and obliquely arranged, a guide pipe (3) is arranged in the middle of the gas conveying sample pipeline, the guide pipe (3) is connected with one side of the upper half part of the collecting container (8), a pneumatic stirring pipeline (5) is arranged at the top of the collecting container (8), and a discharge hole (9) is formed in the bottom of the collecting container (8) in a funnel shape.
The technical scheme of the invention is further improved as follows: the gas conveying sample pipeline (2) is provided with at least one pressure sensor (1).
The technical scheme of the invention is further improved as follows: and a charging valve (4) is arranged on the flow guide pipe (3).
The technical scheme of the invention is further improved as follows: an exhaust port (7) is arranged on one side of the top of the collecting container (8), and a discharge valve (10) is arranged at a discharge port at the bottom of the collecting container (8).
The technical scheme of the invention is further improved as follows: and an air inlet valve (6) is arranged on the pneumatic stirring pipeline (5).
The technical scheme of the invention is further improved as follows: the pressure sensor (1), the feeding valve (4), the air inlet valve (6) and the discharging valve (10) are electrically connected with an upper computer.
A method of operation for a continuous sampling device for a gas transmission pipeline, comprising the steps of:
step 1, determining that a sample canning vehicle is hermetically connected to a gas conveying sample pipeline (2), electrically connecting a pressure sensor (1) arranged on the gas conveying sample pipeline (2) with an upper computer, and monitoring the pressure change condition inside the gas conveying sample pipeline (1) at any time and transmitting the pressure change condition to the upper computer;
step 2, sampling samples in different time periods according to the total unloading time of the sample canning vehicle, automatically opening and closing a feeding valve (4) arranged on a guide pipe (3) in sequence for sampling by controlling the time period set by an upper computer, wherein the opening time of the feeding valve (4) is 3-5 seconds, and collecting the samples to enter a collecting container (8) so that the collected samples cover the samples at different levels and positions of the whole tank;
and 4, after the stirring is stopped and the stirring is stopped for 1 minute, the upper computer opens the discharge valve (10) to discharge the sample in the collecting container (8), and after the sample is discharged, the upper computer closes the discharge valve (10) and automatically monitors and confirms whether the states of all the valves are normal or not, and if the states of all the valves are normal, the next sampling period is started.
The technical scheme of the invention is further improved as follows: in the step 1, the pressure in the gas conveying sample pipeline (2) is controlled to be 0.2-0.3 Mpa.
Compared with the prior art, the continuous sampling device for the gas conveying pipeline and the operation method thereof have the following beneficial effects:
1. the invention provides a continuous sampling device for a gas conveying pipeline and an operation method thereof.
2. The invention provides a continuous sampling device for a gas conveying pipeline and an operation method thereof.
3. The invention provides a continuous sampling device for a gas conveying pipeline and an operation method thereof.
4. The invention provides a continuous sampling device for a gas conveying pipeline and an operation method thereof.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a continuous sampling device for a gas transmission pipeline provided by the invention.
The labels in the figure are: 1-a pressure sensor; 2-a gas delivery sample pipe; 3-a flow guide pipe; 4-a feed valve; 5-a pneumatic stirring pipeline; 6-an air inlet valve; 7-an exhaust port; 8-an aggregate container; 9-a discharge port; 10-a discharge valve.
Detailed Description
The technical solution of the present invention will be clearly and completely described by the following detailed description. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the continuous sampling device for the gas transmission pipeline comprises: a gas conveying sample pipeline (2), a flow guide pipe (3), a pneumatic stirring pipeline (5), an aggregate container (8) and a discharge port (9); the gas conveying sample pipeline (2) is integrally and obliquely arranged, a guide pipe (3) is arranged in the middle of the gas conveying sample pipeline, the guide pipe (3) is connected with one side of the upper half part of the collecting container (8), a pneumatic stirring pipeline (5) is arranged at the top of the collecting container (8), and a discharge hole (9) is formed in the bottom of the collecting container (8) in a funnel shape.
Preferably, the gas transmission sample pipeline (2) is provided with at least one pressure sensor (1).
Preferably, a charging valve (4) is mounted on the flow guide pipe (3).
Preferably, one side of the top of the collecting container (8) is provided with an exhaust port (7), and a discharge port at the bottom of the collecting container (8) is provided with a discharge valve (10).
Preferably, an air inlet valve (6) is arranged on the pneumatic stirring pipeline (5).
Preferably, the pressure sensor (1), the feeding valve (4), the air inlet valve (6) and the discharging valve (10) are electrically connected with an upper computer.
A method of operation for a continuous sampling device for a gas transmission pipeline, comprising the steps of:
step 1, determining that a sample canning vehicle is hermetically connected to a gas conveying sample pipeline (2), electrically connecting a pressure sensor (1) arranged on the gas conveying sample pipeline (2) with an upper computer, and monitoring the pressure change condition inside the gas conveying sample pipeline (1) at any time and transmitting the pressure change condition to the upper computer;
step 2, sampling samples in different time periods according to the total unloading time of the sample canning vehicle, automatically opening and closing a feeding valve (4) arranged on a guide pipe (3) in sequence for sampling by controlling the time period set by an upper computer, wherein the opening time of the feeding valve (4) is 3-5 seconds, and collecting the samples to enter a collecting container (8) so that the collected samples cover the samples at different levels and positions of the whole tank;
and 4, after the stirring is stopped and the stirring is stopped for 1 minute, the upper computer opens the discharge valve (10) to discharge the sample in the collecting container (8), and after the sample is discharged, the upper computer closes the discharge valve (10) and automatically monitors and confirms whether the states of all the valves are normal or not, and if the states of all the valves are normal, the next sampling period is started.
Preferably, in step 1, the pressure inside the gas transport sample line (2) is controlled to be 0.2 to 0.3 MPa.
In this embodiment, the pressure sensor (1) is installed on the gas transmission sample pipeline (2), the detected pressure data is transmitted to the DCS system, the automatic sampling device is installed on the gas transmission sample pipeline (2) as shown in the attached drawing, and the whole sampling device is connected with the main pipeline through the flow guide pipe (3). The feeding valve (4) is installed in the middle section of the flow guide pipe (3), the other end of the flow guide pipe (3) is connected with the aggregate container (8), and the top of the aggregate container (8) is provided with an exhaust pipe (7) for exhausting gas so as to enable the conveying medium to enter the aggregate container (8). The top of the aggregate container (8) is also provided with a gas stirring pipeline (5) and is provided with an air inlet valve (6) for automatic control. The lower part of the aggregate container (8) is connected with a discharge pipe (9), and the discharge pipe (9) is provided with a discharge valve (10). The feeding valve (4), the air inlet valve (5) and the discharging valve (10) are all connected to a DCS control system in an upper computer, and an automatic control program and manual operation are arranged; when the tank truck is connected to a gas conveying sample pipeline (2) and the ash beating operation is started, the pressure sensor (1) detects the change of the pipeline pressure, the normal ash beating pipeline pressure is generally controlled to be 0.2-0.3MPa, the feeding valve (4) is opened for 3-5 seconds and then closed, and the opening period and the opening times of the feeding valve (4) are set on a DCS system in an upper computer according to the ash beating progress and sampling amount requirements so as to ensure that the whole ash beating stage can be covered. After the ash is removed, the pressure sensor (1) detects that the pressure of the main pipeline is 0, the DCS system of the upper computer controls the air inlet valve (6) to be automatically opened for 30 seconds and then closed, and the segmented sampling inside the aggregate container (8) is pneumatically stirred. After the program is set for 1 minute, the discharge valve (10) is opened, the sample enters a pre-placed material receiving container, a sampling worker confirms that the material in the aggregate container (8) is completely placed, the discharge valve (10) is closed, the program automatically resets, and the next sampling period is started.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the appended claims.
Claims (8)
1. A continuous sampling device for a gas transmission pipeline, comprising: a gas conveying sample pipeline (2), a flow guide pipe (3), a pneumatic stirring pipeline (5), an aggregate container (8) and a discharge port (9); the gas conveying sample pipeline (2) is integrally and obliquely arranged, a guide pipe (3) is arranged in the middle of the gas conveying sample pipeline, the guide pipe (3) is connected with one side of the upper half part of the collecting container (8), a pneumatic stirring pipeline (5) is arranged at the top of the collecting container (8), and a discharge hole (9) is formed in the bottom of the collecting container (8) in a funnel shape.
2. The continuous sampling device for the gas transmission pipeline according to claim 1, characterized in that: the gas conveying sample pipeline (2) is provided with at least one pressure sensor (1).
3. The continuous sampling device for the gas transmission pipeline according to claim 1, characterized in that: and a charging valve (4) is arranged on the flow guide pipe (3).
4. The continuous sampling device for the gas transmission pipeline according to claim 1, characterized in that: an exhaust port (7) is arranged on one side of the top of the collecting container (8), and a discharge valve (10) is arranged at a discharge port at the bottom of the collecting container (8).
5. The continuous sampling device for the gas transmission pipeline according to claim 1, characterized in that: and an air inlet valve (6) is arranged on the pneumatic stirring pipeline (5).
6. The continuous sampling device for the gas transmission pipeline according to claim 1, characterized in that: the pressure sensor (1), the feeding valve (4), the air inlet valve (6) and the discharging valve (10) are electrically connected with an upper computer.
7. A method of operation for a continuous sampling device for a gas transmission line, comprising the steps of:
step 1, determining that a sample canning vehicle is hermetically connected to a gas conveying sample pipeline (2), electrically connecting a pressure sensor (1) arranged on the gas conveying sample pipeline (2) with an upper computer, and monitoring the pressure change condition inside the gas conveying sample pipeline (1) at any time and transmitting the pressure change condition to the upper computer;
step 2, sampling samples in different time periods according to the total unloading time of the sample canning vehicle, automatically opening and closing a feeding valve (4) arranged on a guide pipe (3) in sequence for sampling by controlling the time period set by an upper computer, wherein the opening time of the feeding valve (4) is 3-5 seconds, and collecting the samples to enter a collecting container (8) so that the collected samples cover the samples at different levels and positions of the whole tank;
step 3, after unloading is finished, when the pressure sensor (1) on the gas conveying sample pipeline (2) detects that the internal pressure of the pipeline is 0, the upper computer starts the pneumatic stirring pipeline (5) to be provided with the gas inlet valve (6), and the sample in the aggregate container (8) is pneumatically stirred for at least 25 seconds;
and 4, after the stirring is stopped and the stirring is stopped for 1 minute, the upper computer opens the discharge valve (10) to discharge the sample in the collecting container (8), and after the sample is discharged, the upper computer closes the discharge valve (10) and automatically monitors and confirms whether the states of all the valves are normal or not, and if the states of all the valves are normal, the next sampling period is started.
8. The operating method for a continuous sampling device of a gas transmission pipeline according to claim 7, characterized in that: in the step 1, the pressure in the gas conveying sample pipeline (2) is controlled to be 0.2-0.3 Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110291591.2A CN112924242A (en) | 2021-03-18 | 2021-03-18 | Continuous sampling device for gas conveying pipeline and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110291591.2A CN112924242A (en) | 2021-03-18 | 2021-03-18 | Continuous sampling device for gas conveying pipeline and operation method thereof |
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| Publication Number | Publication Date |
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| CN112924242A true CN112924242A (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110291591.2A Pending CN112924242A (en) | 2021-03-18 | 2021-03-18 | Continuous sampling device for gas conveying pipeline and operation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113670663A (en) * | 2021-09-09 | 2021-11-19 | 全椒海螺水泥有限责任公司 | Automatic sampling device for powder material conveying and warehousing and installation and debugging method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1412999A (en) * | 1964-11-03 | 1965-10-01 | Atomic Energy Authority Uk | Fluid sampling device |
| GB1045663A (en) * | 1964-08-26 | 1966-10-12 | Texsteam Corp | Pipeline sampler |
| CN101936827A (en) * | 2010-08-24 | 2011-01-05 | 唐山国丰钢铁有限公司 | Movable horizontal powder automatic sampler for pipelines |
| CN206787867U (en) * | 2017-06-16 | 2017-12-22 | 山东铁正工程试验检测中心有限公司 | A kind of powdered material sampling device |
| CN111247414A (en) * | 2017-08-17 | 2020-06-05 | 兰考特科德股份公司 | Sampling device for obtaining a representative milk sample and method for obtaining a representative milk sample |
-
2021
- 2021-03-18 CN CN202110291591.2A patent/CN112924242A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1045663A (en) * | 1964-08-26 | 1966-10-12 | Texsteam Corp | Pipeline sampler |
| FR1412999A (en) * | 1964-11-03 | 1965-10-01 | Atomic Energy Authority Uk | Fluid sampling device |
| CN101936827A (en) * | 2010-08-24 | 2011-01-05 | 唐山国丰钢铁有限公司 | Movable horizontal powder automatic sampler for pipelines |
| CN206787867U (en) * | 2017-06-16 | 2017-12-22 | 山东铁正工程试验检测中心有限公司 | A kind of powdered material sampling device |
| CN111247414A (en) * | 2017-08-17 | 2020-06-05 | 兰考特科德股份公司 | Sampling device for obtaining a representative milk sample and method for obtaining a representative milk sample |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113670663A (en) * | 2021-09-09 | 2021-11-19 | 全椒海螺水泥有限责任公司 | Automatic sampling device for powder material conveying and warehousing and installation and debugging method thereof |
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