CN220583879U - Coal quality detection equipment for coal flow of coal belt in furnace - Google Patents
Coal quality detection equipment for coal flow of coal belt in furnace Download PDFInfo
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- CN220583879U CN220583879U CN202322074184.3U CN202322074184U CN220583879U CN 220583879 U CN220583879 U CN 220583879U CN 202322074184 U CN202322074184 U CN 202322074184U CN 220583879 U CN220583879 U CN 220583879U
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- 239000003245 coal Substances 0.000 title claims abstract description 81
- 238000001514 detection method Methods 0.000 title claims abstract description 61
- 238000005070 sampling Methods 0.000 claims abstract description 49
- 238000000227 grinding Methods 0.000 claims abstract description 45
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 238000009475 tablet pressing Methods 0.000 claims description 25
- 238000003756 stirring Methods 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000002536 laser-induced breakdown spectroscopy Methods 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002817 coal dust Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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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 flow coal quality detection device for a coal belt entering a furnace, which comprises the following components: a belt for conveying pulverized coal, further comprising: detection mechanism, detection mechanism is fixed in the top of belt, detection mechanism includes: the device comprises a main chamber, a sampling part, a grinding part, a tabletting part and a detection part; the sampling part, the grinding part, the tabletting part and the detection part are sequentially fixed in the total cavity along the movement direction of the belt, one end of the sampling part passes through the detection mechanism and is arranged outside the detection mechanism, the grinding part is connected with the sampling part through a conveying pipe, the side wall of the tabletting part is communicated with the side wall of the grinding part, and the tabletting part is connected with the detection part through a sample tube. According to the utility model, through the cooperation of the sampling part, the grinding part, the tabletting part and the detection part, the LIBS technology is adopted to realize comprehensive monitoring of coal quality.
Description
Technical Field
The utility model relates to the technical field of coal quality detection, in particular to a coal flow coal quality detection device for a coal belt of a furnace.
Background
Coal quality is one of the parameters that have an important influence on the operation of the coal-fired power station boiler, and mainly comprises ash content, volatile content and moisture in the coal. Wherein, ash in the coal is incombustible, when the content of the ash is increased, the combustible component in the coal dust is reduced, and in the combustion process, the ash with large content can isolate oxygen from contacting the coal dust, thereby causing insufficient combustion of the coal dust, reduced combustion efficiency and reduced generated heat; when the content of volatile matters in the pulverized coal is increased, the ignition temperature of the coal is reduced, the efficiency of the pulverized coal in the combustion process is also improved, and the combustion is more sufficient. When the coal quality of the coal fed into the furnace changes, if the volatile content is reduced, the ignition temperature needs to be increased to realize normal combustion; when the moisture content in the coal increases, the combustion process needs to consume more heat to evaporate and remove the moisture, resulting in a decrease in power generation efficiency.
When the coal quality of the entering furnace changes, the capability of detecting and tracking the coal quality condition on line in real time is very critical. However, in the field of combustion detection, the technology of online detection of coal quality has challenges, and although domestic power plants have certain applications in various technologies and products of online detection of coal quality, the measurement reliability and accuracy still cannot meet the requirements of combustion adjustment. In addition, the detection equipment is expensive, requires a great deal of daily maintenance work, and cannot be applied to field practical application.
Therefore, the research on the coal quality detection equipment of the coal flow of the coal feeding belt has important significance for the operation of the coal-fired boiler.
Disclosure of Invention
In order to achieve the aim, the utility model provides coal quality detection equipment for a coal flow of a coal belt entering a furnace, so as to solve the problems of poor reliability and accuracy of the existing coal quality on-line detection technology and products.
The utility model provides a coal quality detection device for a coal belt coal flow of a furnace, which comprises the following components: a belt for conveying pulverized coal, further comprising: detection mechanism, detection mechanism is fixed in the top of belt, detection mechanism includes: the device comprises a main chamber, a sampling part, a grinding part, a tabletting part and a detection part;
the sampling part, the grinding part, the tabletting part and the detection part are sequentially fixed in the total cavity along the movement direction of the belt, one end of the sampling part passes through the detection mechanism and is arranged outside the detection mechanism, the grinding part is connected with the sampling part through a conveying pipe, the side wall of the tabletting part is communicated with the side wall of the grinding part, and the tabletting part is connected with the detection part through a sample tube.
Further, the sampling portion is telescopic hollow structure, the sampling end of sampling portion is directional the belt, the one end of conveying pipeline wears to locate the inside of sampling portion and with the sampling end of sampling portion is connected, the other end of conveying pipeline with the top intercommunication of grinding portion lateral wall, the conveying pipeline is the arc.
Further, the polishing section includes: grinding portion casing, rotation axis and stirring fan piece, grinding portion casing is cylindric structure, the rotation axis sets up grinding portion casing's rotation center, stirring fan piece is installed on the rotation axis, stirring fan piece's length is less than grinding portion casing's radius, grinding portion casing lateral wall's bottom with preforming portion intercommunication.
Further, the tablet part includes: the tablet pressing device comprises a tablet pressing part shell, a hydraulic column, a tablet pressing plate, a tablet pressing support frame and a weight sensor, wherein the hydraulic column is installed at the top of the tablet pressing part shell, the tablet pressing plate is located inside the tablet pressing part shell, the tablet pressing plate is connected with the hydraulic column, the tablet pressing support frame is correspondingly arranged at the bottom of the tablet pressing plate, and the weight sensor is installed on the upper surface of the tablet pressing support frame.
Further, the detection section includes: the device comprises a spectrometer, a pulse laser, a telescopic piece, a lens, a sample table and a rotary table, wherein the spectrometer and the pulse laser are respectively fixed at the top of a main cavity, the pulse laser is electrically connected with the spectrometer, the pulse laser, the lens and the sample table are sequentially and correspondingly arranged from top to bottom, the lens is connected with the bottom of the pulse laser through the telescopic piece, and the rotary table is in threaded connection with the sample table.
Further, the detection mechanism further includes: the sample discharging pipe is connected with the rotary table, penetrates through the bottom of the total cavity, the pipe orifice of the sample discharging pipe is parallel to the movement direction of the belt, and any bending position of the sample discharging pipe is arc-shaped.
Compared with the prior art, the device for detecting the coal quality of the coal flow of the coal belt of the furnace feeding has the beneficial effects that:
the sampling part is of a telescopic hollow structure, can accurately sample coal quality fed into the furnace, and ensures the accuracy and representativeness of sampling; the detection part adopts a spectrometer and a pulse laser to analyze the coal quality, has the characteristics of high precision and high speed, and can accurately detect the components and characteristics of the coal quality; through the movement of the belt and the arrangement of the sampling pipes, the continuous collection and transmission of the coal samples are ensured, and the working efficiency and accuracy are improved.
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 device for detecting coal quality of a coal flow of a coal belt in a furnace according to an embodiment of the utility model;
FIG. 2 is a schematic diagram of a part of a coal quality detection device for a coal flow of a coal belt in a furnace according to an embodiment of the utility model;
fig. 3 is a schematic diagram of a part of a coal quality detection device for a coal flow of a coal feeding belt according to an embodiment of the present utility model.
100, a belt; 200. a detection mechanism; 201. a total chamber; 210. a sampling unit; 211. a material conveying pipe; 220. a polishing section; 221. a rotation shaft; 222. stirring fan blades; 223. a grinding part shell; 230. a tabletting part; 231. a hydraulic column; 232. a tabletting plate; 233. a tabletting supporting frame; 234. a weight sensor; 235. a tabletting part shell; 240. a detection unit; 241. a spectrometer; 242. a pulsed laser; 243. a telescoping member; 244. a lens; 245. a sample stage; 246. a turntable; 250. and a discharge tube.
Detailed Description
The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within 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.
As shown in fig. 1 to 3, a coal quality detection apparatus for a coal belt coal flow into a furnace according to a preferred embodiment of the present utility model includes:
a belt 100 for conveying pulverized coal, a detection mechanism 200, the detection mechanism 200 is fixed on the top of the belt 100, and the detection mechanism 200 comprises: a main chamber 201, a sampling portion 210, a polishing portion 220, a tabletting portion 230, and a detecting portion 240;
the sampling part 210, the grinding part 220, the pressing part 230 and the detecting part 240 are sequentially fixed in the total chamber 201 along the movement direction of the belt 100, one end of the sampling part 210 passes through the detecting mechanism 200 and is arranged outside the detecting mechanism 200, the grinding part 220 is connected with the sampling part 210 through the material conveying pipe 211, the side wall of the pressing part 230 is communicated with the side wall of the grinding part 220, and the pressing part 230 is connected with the detecting part 240 through a sample pipe.
The device is characterized in that the real-time detection of the conveyed pulverized coal is realized by the design of the detection mechanism and the fixation of the detection mechanism on the top of the belt; the sampling part is connected with the grinding part through a conveying pipe, so that the sampling and conveying of the pulverized coal are realized; the pressing part is connected with the detection part through the sample tube, and the compacted coal sample is conveyed to the detection part for analysis.
In some embodiments, the sampling portion 210 is a telescopic hollow structure, the sampling end of the sampling portion 210 points to the belt 100, one end of the material conveying pipe 211 is penetrated inside the sampling portion 210 and connected to the sampling end of the sampling portion 210, the other end of the material conveying pipe 211 is communicated with the top of the side wall of the grinding portion 220, and the material conveying pipe 211 is arc-shaped.
It should be noted that, the sampling portion 210 adopts a telescopic hollow structure, can be adjusted in a telescopic manner according to the requirement, can adapt to belts with different sizes and heights, ensures that the sampling end is accurately aligned to the pulverized coal flow, and provides a stable sampling process; one end of the conveying pipe 211 is arranged in the sampling part 210 in a penetrating manner and is connected with the sampling end of the sampling part 210, the other end of the conveying pipe 211 is communicated with the top of the side wall of the grinding part 220 and is arc-shaped, so that pulverized coal can be stably conveyed, accumulation and blockage of the pulverized coal are avoided, and continuity and fluency of a coal sample are ensured.
In some of these embodiments, the grinding portion 220 includes: the grinding part shell 223, the rotary shaft 221 and the stirring fan blade 222 are in a cylindrical structure, the rotary shaft 221 is arranged at the rotary center of the grinding part shell 223, the stirring fan blade 222 is arranged on the rotary shaft 221, the length of the stirring fan blade 222 is smaller than the radius of the grinding part shell 223, and the bottom of the side wall of the grinding part shell 223 is communicated with the tabletting part 230.
It should be noted that, the grinding portion 220 adopts a cylindrical structure, which has a larger surface area and a stable grinding space, increases the contact area between the pulverized coal and the stirring fan blade 222, provides more sufficient grinding and mixing effects, and ensures uniformity of sampling; through the rotation of the rotation shaft 221, the stirring fan 222 can stir and mix the pulverized coal, so as to promote the uniform distribution and grinding effect of the pulverized coal, thereby improving the representativeness and accuracy of sampling; the length of the stirring vane 222 is smaller than the radius of the grinding section 220. Such a design ensures that the stirring vane is free to rotate inside the grinding section and avoid collision with the grinding section side wall.
In some of these embodiments, the tabletting portion 230 comprises: the tablet part casing 235, the hydraulic pressure post 231, the tablet plate 232, tablet support frame 233 and weight sensor 234, the hydraulic pressure post 231 is installed at the top of tablet part casing 235, and tablet plate 232 is located the inside of tablet part casing 235, and tablet plate 232 is connected with hydraulic pressure post 231, and tablet support frame 233 corresponds the setting in tablet plate 232's bottom, and weight sensor 234 installs the upper surface at tablet support frame 233.
It should be noted that, the hydraulic column 231 is installed at the top of the tablet pressing portion 230, and can provide stable pressure and force for applying appropriate pressure to the tablet pressing plate 232, so as to ensure that the pulverized coal is sufficiently compacted on the tablet pressing plate, so that a uniform and compact sample is formed, thereby improving the accuracy of detection; the presser plate 232 is located inside the presser part 230 and is connected by a hydraulic column 231. This design allows the tablet to remain stable under the appropriate pressure and ensures uniform compaction of the coal fines; the weight sensor 234 is installed on the upper surface of the tablet holding frame 233. By monitoring the weight change of the sample on the sheeting 232, the weight sensor can provide accurate weight data for quantification of coal quality.
In some of these embodiments, the detection portion 240 includes: spectrometer 241, pulse laser 242, telescoping member 243, lens 244, sample stage 245 and revolving stage 246, spectrometer 241 and pulse laser 242 are fixed respectively at the top of total cavity 201, and pulse laser 242 is connected with spectrometer 241 electricity, and pulse laser 242, lens 244 and sample stage 245 correspond the setting in proper order from top to bottom, and lens 244 passes through the telescoping member 243 to be connected with the bottom of pulse laser 242, and revolving stage 246 passes through threaded connection with sample stage 245.
In some of these embodiments, the detection mechanism 200 further comprises: the discharge tube 250, the discharge tube 250 is connected with the turntable 246, the discharge tube 250 passes through the bottom of the main chamber 201, and the nozzle of the discharge tube 250 is parallel to the moving direction of the belt 100, and any bending part of the discharge tube 250 is arc-shaped.
It should be noted that the position and shape of the discharge tube 250 allows accurate transport of the coal sample for detection back to the belt 100; the attachment of the evacuation tube 250 is compatible with the turntable 246, making the installation and removal process more convenient. In addition, the arc design helps to reduce friction and damage at pipe bends, improving reliability and durability of the apparatus.
The foregoing is merely an example of the present utility model and is not intended to limit the scope of the present utility model, and all changes made in the structure according to the present utility model should be considered as falling within the scope of the present utility model without departing from the gist of the present utility model.
It should be noted that, in the system provided in the foregoing embodiment, only the division of the foregoing functional modules is illustrated, in practical application, the foregoing functional allocation may be performed by different functional modules, that is, the modules or steps in the embodiment of the present utility model are further decomposed or combined, for example, the modules in the foregoing embodiment may be combined into one module, or may be further split into multiple sub-modules, so as to complete all or part of the functions described above. The names of the modules and steps related to the embodiments of the present utility model are merely for distinguishing the respective modules or steps, and are not to be construed as unduly limiting the present utility model.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus/apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus/apparatus.
Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.
The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the present utility model.
Claims (3)
1. A coal quality detection device for a coal flow of a coal belt into a furnace, comprising: a belt for carrying buggy, its characterized in that still includes: detection mechanism, detection mechanism is fixed in the top of belt, detection mechanism includes: the device comprises a main chamber, a sampling part, a grinding part, a tabletting part and a detection part;
the sampling part, the grinding part, the tabletting part and the detection part are sequentially fixed in the total cavity along the movement direction of the belt, one end of the sampling part passes through the detection mechanism and is arranged outside the detection mechanism, the grinding part is connected with the sampling part through a conveying pipe, the side wall of the tabletting part is communicated with the side wall of the grinding part, and the tabletting part is connected with the detection part through a sample tube;
the sampling part is of a telescopic hollow structure, the sampling end of the sampling part points to the belt, one end of the conveying pipe penetrates through the inside of the sampling part and is connected with the sampling end of the sampling part, the other end of the conveying pipe is communicated with the top of the side wall of the grinding part, and the conveying pipe is arc-shaped;
the detection unit includes: the device comprises a spectrometer, a pulse laser, a telescopic piece, a lens, a sample table and a rotary table, wherein the spectrometer and the pulse laser are respectively fixed at the top of a main chamber, the pulse laser is electrically connected with the spectrometer, the pulse laser, the lens and the sample table are sequentially and correspondingly arranged from top to bottom, the lens is connected with the bottom of the pulse laser through the telescopic piece, and the rotary table is connected with the sample table through threads;
the detection mechanism further includes: the sample discharging pipe is connected with the rotary table, penetrates through the bottom of the total cavity, the pipe orifice of the sample discharging pipe is parallel to the movement direction of the belt, and any bending position of the sample discharging pipe is arc-shaped.
2. The apparatus for detecting the coal quality of a coal belt stream for feeding a furnace according to claim 1, wherein the grinding section comprises: grinding portion casing, rotation axis and stirring fan piece, grinding portion casing is cylindric structure, the rotation axis sets up grinding portion casing's rotation center, stirring fan piece is installed on the rotation axis, stirring fan piece's length is less than grinding portion casing's radius, grinding portion casing lateral wall's bottom with preforming portion intercommunication.
3. The apparatus for detecting the coal quality of a coal belt stream for feeding a furnace according to claim 2, wherein the pressing part comprises: the tablet pressing device comprises a tablet pressing part shell, a hydraulic column, a tablet pressing plate, a tablet pressing support frame and a weight sensor, wherein the hydraulic column is installed at the top of the tablet pressing part shell, the tablet pressing plate is located inside the tablet pressing part shell, the tablet pressing plate is connected with the hydraulic column, the tablet pressing support frame is correspondingly arranged at the bottom of the tablet pressing plate, and the weight sensor is installed on the upper surface of the tablet pressing support frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322074184.3U CN220583879U (en) | 2023-08-01 | 2023-08-01 | Coal quality detection equipment for coal flow of coal belt in furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322074184.3U CN220583879U (en) | 2023-08-01 | 2023-08-01 | Coal quality detection equipment for coal flow of coal belt in furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220583879U true CN220583879U (en) | 2024-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322074184.3U Active CN220583879U (en) | 2023-08-01 | 2023-08-01 | Coal quality detection equipment for coal flow of coal belt in furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220583879U (en) |
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2023
- 2023-08-01 CN CN202322074184.3U patent/CN220583879U/en active Active
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