CN220207500U - Online detection system for coal quality of coal sampling machine in furnace - Google Patents
Online detection system for coal quality of coal sampling machine in furnace Download PDFInfo
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- CN220207500U CN220207500U CN202321474819.2U CN202321474819U CN220207500U CN 220207500 U CN220207500 U CN 220207500U CN 202321474819 U CN202321474819 U CN 202321474819U CN 220207500 U CN220207500 U CN 220207500U
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- 239000003245 coal Substances 0.000 title claims abstract description 184
- 238000001514 detection method Methods 0.000 title claims abstract description 40
- 238000005070 sampling Methods 0.000 title claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 30
- 238000002360 preparation method Methods 0.000 claims abstract description 7
- 238000003860 storage Methods 0.000 claims abstract description 6
- 239000000523 sample Substances 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 12
- 238000003780 insertion Methods 0.000 claims description 10
- 239000010797 grey water Substances 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 6
- 241001417527 Pempheridae Species 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 238000009776 industrial production Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000005259 measurement Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to the technical field of coal quality detection, and discloses a coal quality online detection system of a coal sampling machine for a furnace, which comprises a sampling and sample preparation module, a coal quality analysis module and a control module; the sampling module comprises a dividing device, a coal dropping pipe, a bucket elevator and a conveying belt which are connected in sequence; a material receiving baffle plate is movably connected in the coal dropping pipe and is used for forming a temporary coal storage bin to receive the coal materials after being reduced by the reducing device; the coal quality analysis module is movably connected in the coal dropping pipe and is positioned at the top of the material receiving baffle and used for detecting coal quality; the control module is respectively and electrically connected with the material receiving baffle plate and the coal quality analysis module and is used for controlling the movement of the material receiving baffle plate and the coal quality analysis module. The utility model can not only analyze the coal quality in time and reduce the waiting time, but also ensure the measuring precision of the coal quality, can perform normal sampling, is convenient for instrument comparison and calibration, and is suitable for industrial production.
Description
Technical Field
The utility model relates to the technical field of coal quality detection, in particular to a coal quality online detection system of a coal sampling machine for charging.
Background
At present, each enterprise gradually puts forward the fine coal blending requirement, and on the premise of ensuring that the indexes of coal for feeding the coal into the furnace are qualified, the consumption of high-heat-value coal is reduced, the low-quality coal or the mixed coal is changed into the problem of primary consideration of more and more power plants, the fine coal blending management work is enhanced, and the coal blending accuracy is further improved, so that the aim of effectively controlling the cost is fulfilled. In order to achieve the aim, the condition of the coal quality on the conveying belt needs to be mastered in time so as to adjust the coal feeding mode and the proportion in time, and the condition of the coal quality on the conveying belt needs to be detected in time.
At present, two methods are commonly adopted, one method is off-line analysis, sampling is carried out, and then the sample is sent to a sample preparation room for sample preparation, and then the sample is sent to a laboratory for analysis, and the method has poor instantaneity and cannot feed back the coal quality condition in time; the other is the on-line analysis of coal quality, and an on-line analysis instrument is directly arranged on a conveyor belt machine, but the on-line measurement accuracy of the coal quality is lower due to the fact that the coal flow speed on the conveyor belt machine is higher, the granularity is uneven, and the coal flow section is unstable.
Therefore, how to provide an on-line coal quality detection system of a coal sampling machine capable of feeding back a detection result in real time and having good detection precision is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the utility model provides an on-line detection system for coal quality of a coal sampling machine in a furnace, which aims to solve the problems of poor real-time performance of the existing off-line analysis mode and lower measurement accuracy of the on-line analysis mode.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the on-line coal quality detection system of the coal sampling machine comprises a sampling and sample preparation module, a coal quality analysis module and a control module;
the sampling module comprises a dividing device, a coal dropping pipe, a bucket elevator and a conveying belt which are connected in sequence; a material receiving baffle plate is movably connected in the coal dropping pipe and is used for forming a temporary coal storage bin to receive the coal materials after being reduced by the reducing device;
the coal quality analysis module is movably connected in the coal dropping pipe and is positioned at the top of the material receiving baffle and used for detecting coal quality;
the control module is respectively and electrically connected with the material receiving baffle plate and the coal quality analysis module and is used for controlling the movement of the material receiving baffle plate and the coal quality analysis module.
Preferably, in the on-line coal quality detection system of the coal sampling machine for the furnace, the shape and the size of the material receiving baffle are matched with those of the cross section of the coal dropping pipe.
Preferably, in the above in-furnace coal sampling machine coal quality online detection system, an insertion opening is provided on a side wall of the coal dropping pipe, and the material receiving baffle is inserted into the coal dropping pipe through the insertion opening.
Preferably, in the in-furnace coal sampling machine coal quality online detection system, a sealing ring is circumferentially arranged on the inner side of the insertion opening.
Preferably, in the online detection system for coal quality of the coal sampling machine, the coal quality analysis module is a grey water heat value instrument; through holes 220 are formed in the side walls of the coal dropping pipes, and probes of the ash water heat value meter extend into the coal dropping pipes from the through holes 220.
Preferably, in the above in-furnace coal sampling machine coal quality online detection system, a sealing ring is circumferentially arranged at the inner side of the through hole 220, and a sweeper is arranged at one side of the sealing ring, which is in contact with the probe of the ash water heat value instrument, for cleaning the probe.
Preferably, in the above-mentioned in-furnace coal sampling machine coal quality online detection system, the control module includes
The industrial personal computer is connected with the coal quality analysis module and is used for receiving and processing the detection result of the coal quality analysis module;
and the display screen is connected with the industrial personal computer and used for displaying the coal quality data and uploading the coal quality data to the upper computer.
The utility model provides a coal quality online detection system of a coal sampling machine, which has the beneficial effects that compared with the prior art:
according to the utility model, the material receiving baffle and the ash water heat value instrument are additionally arranged at the front coal dropping pipe of the bucket elevator, and a stable and static coal bed is provided for providing good detection conditions for coal quality detection, so that the defects of offline analysis and online analysis are effectively overcome, the coal quality analysis can be timely carried out, the waiting time is reduced, the coal quality measurement precision is ensured, normal sampling can be carried out, instrument comparison and calibration are facilitated, and the method is suitable for industrial production.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a coal quality online detection system of a coal sampling machine for furnace entry according to an embodiment of the utility model;
FIG. 2 is a side view of the coal drop tube of FIG. 1;
fig. 3 is a front view of the coal chute of fig. 1.
In the figure:
100-shrinkage device, 200-coal dropping pipe, 210-insertion opening, 211-sealing ring, 220-through hole, 221-sealing ring, 300-receiving baffle, 400-grey water heat value meter, 410 sweeper, 500-industrial computer and 600-display screen.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying 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 application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
The embodiment of the utility model provides a coal quality online detection system of a coal sampling machine for a furnace, which comprises a sampling and sample preparation module, a coal quality analysis module and a control module;
the sampling and sample preparation module comprises a shrinkage dividing device 100, a coal dropping pipe 200, a bucket elevator and a conveying belt which are connected in sequence; a material receiving baffle 300 is movably connected in the coal dropping pipe 200 and is used for forming a temporary coal storage bin to receive the coal materials after being reduced by the reduction device 100;
the coal quality analysis module is movably connected in the coal dropping pipe 200 and is positioned at the top of the material receiving baffle 300 and used for detecting coal quality;
the control module is respectively and electrically connected with the material receiving baffle 300 and the coal quality analysis module and is used for controlling the movement of the material receiving baffle 300 and the coal quality analysis module.
In some embodiments of the present utility model, the shape and size of the material receiving baffle 300 are matched with the shape and size of the cross section of the coal dropping pipe 200, so that the material receiving baffle 300 can divide the coal dropping pipe 200 into an upper area and a lower area, wherein the area above the material receiving baffle 300 is used as a temporary coal storage bin, and the coal quality analysis module quickly detects the coal in the area of the temporary coal storage bin.
Further, an insertion opening 210 is formed in the side wall of the coal dropping pipe 200, and the material receiving baffle 300 is inserted into the coal dropping pipe 200 through the insertion opening 210; furthermore, the sealing ring 211 is disposed around the inner side of the insertion opening 210, so that the material receiving baffle 300 is tightly connected with the coal drop tube 200, and the fine particles in the coal drop tube 200 are prevented from escaping to pollute the surrounding environment and damage to the human health.
The connection mode between the receiving baffle 300 and the coal drop pipe 200 is a movable connection, and may be a sliding groove or a groove formed in the inner wall of the coal drop pipe 200, and may be slidably connected with the receiving baffle 300, or may be engaged by a buckle, etc., which is not particularly limited thereto.
In some embodiments of the utility model, the coal quality analysis module is an ash water calorific value meter 400 for detecting indexes such as ash content, moisture content, calorific value, volatile matters, sulfur content and the like of the coal.
In some embodiments of the utility model, the side wall of the coal dropping pipe 200 is provided with a through hole 220, and the probe of the ash water calorific value meter 400 extends into the coal dropping pipe 200 from the through hole 220; further, a sealing ring 211, preferably a silica gel pad, is arranged around the inner side of the through hole 220, so that the probe is protected while the through hole is sealed to prevent fine particles from escaping, and the service life of the grey water heat value instrument 400 is prolonged;
furthermore, a sweeper 410 is arranged on one side of the sealing ring 221 contacted with the probe of the ash water heat value instrument 400, and is used for cleaning the probe, so that the probe can be automatically cleaned when the probe exits the coal dropping pipe 200, detection errors are avoided, and further, the accuracy of the detection result is higher; it can be appreciated that the sweeper 410 can be an electric cleaning brush or a cloth brush, and the brush head or the cloth brush of the electric cleaning brush is detachably connected with the sealing ring 221/the coal dropping pipe 200, so that the electric cleaning brush can be replaced conveniently at any time, and the cleanliness is ensured.
In some embodiments of the present utility model, the control module includes an industrial personal computer 500 and a display screen 600; the industrial personal computer 500 is connected with the coal quality analysis module and is used for receiving and processing the detection result of the coal quality analysis module; the display screen 600 is connected with the industrial personal computer 500 and is used for displaying coal quality data and uploading the coal quality data to the upper computer.
Specifically, the grey water heat value meter 400 transmits the detected data to the industrial personal computer 500 for processing, converts the detected data into an electric signal, transmits the electric signal to the display screen 600, displays coal quality data and a coal quality data fluctuation curve on the display screen 600, and stores the coal quality data and transmits the coal quality data to the upper computer for networking inquiry; the power supply of the industrial personal computer 500 and the display screen 600 is provided by a power distribution cabinet; in addition, after the industrial personal computer 500 detects the coal quality data in the set time, the probe of the ash water heat value instrument 400 and the material receiving baffle 300 can be controlled to withdraw from the coal dropping pipe 200, so that the coal sample falls into the bucket elevator and returns to the conveying belt.
The working principle of the coal quality online detection system of the coal sampling machine in the furnace is as follows:
the primary sampler collects coal samples from a conveyor belt, the maximum sampling nominal granularity of the primary sampler is 100mm, a crusher crushes the coal samples to 13mm, the coal samples enter the crusher through a primary feeding belt, the coal samples are crushed and mixed, the coal samples after being reduced through a reduction belt fall into a sample collecting barrel, the abandoned samples enter a receiving baffle 300 in a coal dropping pipe 200, a detection head of a grey water heat value instrument 400 positioned at the upper part of the receiving baffle 300 finishes detection, a probe and the receiving baffle 300 withdraw from the coal dropping pipe 200 after a set time is reached, the coal samples fall into a bucket elevator, and the conveyor belt returns; the grey water heat value instrument 400 simultaneously transmits the measurement result to the industrial personal computer 500, and after processing, the coal quality data and the coal quality data fluctuation curve are displayed on the display screen 600, and the coal quality data are stored and transmitted to the upper computer for networking inquiry.
Specifically, the set time is set according to the shrinkage separation interval of the shrinkage separator, the detection of ash content, moisture and heat value of coal entering the furnace is completed once every 2-3 minutes, the ash content is measured by the ash water heat value meter 400 by adopting a double gamma ray transmission method, the moisture is measured by a microwave transmission method, and the heat value is calculated according to the regression equation of the empirical formula of coal.
In summary, compared with the analysis mode that the ash heat value instrument is directly arranged on the coal conveying belt conveyor, the method improves the measurement accuracy of coal quality analysis through the detection of the crushed coal sample granularity and the stationary coal sample; compared with an offline analysis form, the method can timely master the coal quality condition, and realizes rapid detection of the coal quality.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.
Claims (7)
1. The on-line coal quality detection system of the coal sampling machine for the furnace is characterized by comprising a sampling and sample preparation module, a coal quality analysis module and a control module;
the sampling module comprises a dividing device, a coal dropping pipe, a bucket elevator and a conveying belt which are connected in sequence; a material receiving baffle plate is movably connected in the coal dropping pipe and is used for forming a temporary coal storage bin to receive the coal materials after being reduced by the reducing device;
the coal quality analysis module is movably connected in the coal dropping pipe and is positioned at the top of the material receiving baffle and used for detecting coal quality;
the control module is respectively and electrically connected with the material receiving baffle plate and the coal quality analysis module and is used for controlling the movement of the material receiving baffle plate and the coal quality analysis module.
2. The in-furnace coal sampling machine coal quality online detection system according to claim 1, wherein the shape and the size of the receiving baffle are matched with those of the cross section of the coal dropping pipe.
3. The in-furnace coal sampling machine coal quality online detection system according to claim 1, wherein an insertion opening is formed in the side wall of the coal dropping pipe, and the material receiving baffle is inserted into the coal dropping pipe through the insertion opening.
4. The in-furnace coal sampling machine coal quality online detection system according to claim 3, wherein a sealing ring is arranged on the inner side of the insertion opening in a surrounding mode.
5. The in-furnace coal sampling machine coal quality online detection system according to claim 1, wherein the coal quality analysis module is a grey water calorific value meter; and a through hole (220) is formed in the side wall of the coal dropping pipe, and a probe of the grey water heat value instrument extends into the coal dropping pipe from the through hole (220).
6. The in-furnace coal sampling machine coal quality online detection system according to claim 5, wherein a sealing ring is arranged around the inner side of the through hole (220), and a sweeper is arranged on one side of the sealing ring, which is in contact with the probe of the grey water heat value instrument, for cleaning the probe.
7. The in-furnace coal sampler coal quality online detection system of claim 1, wherein the control module comprises:
the industrial personal computer is connected with the coal quality analysis module and is used for receiving and processing the detection result of the coal quality analysis module;
and the display screen is connected with the industrial personal computer and used for displaying the coal quality data and uploading the coal quality data to the upper computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321474819.2U CN220207500U (en) | 2023-06-08 | 2023-06-08 | Online detection system for coal quality of coal sampling machine in furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321474819.2U CN220207500U (en) | 2023-06-08 | 2023-06-08 | Online detection system for coal quality of coal sampling machine in furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220207500U true CN220207500U (en) | 2023-12-19 |
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ID=89155181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321474819.2U Active CN220207500U (en) | 2023-06-08 | 2023-06-08 | Online detection system for coal quality of coal sampling machine in furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220207500U (en) |
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2023
- 2023-06-08 CN CN202321474819.2U patent/CN220207500U/en active Active
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