CN117092034A - Coal quality detection equipment - Google Patents
Coal quality detection equipment Download PDFInfo
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- CN117092034A CN117092034A CN202310712982.6A CN202310712982A CN117092034A CN 117092034 A CN117092034 A CN 117092034A CN 202310712982 A CN202310712982 A CN 202310712982A CN 117092034 A CN117092034 A CN 117092034A
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- 239000003245 coal Substances 0.000 title claims abstract description 95
- 238000001514 detection method Methods 0.000 title claims abstract description 75
- 238000005070 sampling Methods 0.000 claims abstract description 140
- 239000002817 coal dust Substances 0.000 claims abstract description 43
- 238000007789 sealing Methods 0.000 claims abstract description 41
- 238000004458 analytical method Methods 0.000 claims abstract description 16
- 230000001681 protective effect Effects 0.000 claims abstract description 5
- 239000000523 sample Substances 0.000 claims description 50
- 230000002457 bidirectional effect Effects 0.000 claims description 20
- 230000007246 mechanism Effects 0.000 claims description 20
- 238000001228 spectrum Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000013307 optical fiber Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000014510 cooky Nutrition 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002536 laser-induced breakdown spectroscopy Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to coal quality detection equipment in the technical field of coal quality detection, which comprises a sampling system for taking coal samples from a coal dust conveying belt and a detection and analysis system for detecting and analyzing the coal samples collected by the sampling system, wherein the sampling system comprises a sampling pipe with a closed upper end, the lower end of the sampling pipe penetrates through a protective cover of the coal dust conveying belt in a sliding manner, a sampling motor is arranged at the closed end of the sampling pipe, the output end of the sampling motor is coaxially and rotatably connected with a screw shaft, and the screw shaft is coaxially and rotatably connected with an inner cavity of the sampling pipe; and a sampling tube is arranged on one side of the top of the sampling tube. According to the invention, due to the arrangement of the sampling system, the sampling work is realized by the way that the screw shaft is matched with the sampling pipe, the sampling work has no participation of strong air flow, and coal dust overflow is hardly caused even if all pipelines have small gaps, so that the technical problem that in the prior art, the conveying pipeline needs a good sealing effect, otherwise, the risk of coal dust overflow occurs, and the surrounding environment is polluted is solved.
Description
Technical Field
The invention relates to the technical field of coal quality detection, in particular to coal quality detection equipment.
Background
The laser-induced breakdown spectroscopy technology has the advantages of high detection speed, convenience for on-site analysis, no nuclear radiation hazard, low operation and maintenance cost and the like, and has unique advantages and great application potential in the on-line detection of coal quality.
At present, the current chinese patent with publication number CN106153655a discloses a coal quality on-line measuring device, and the device gathers the coal sample in the buggy through jetting the conveyer, needs cyclone to separate the buggy again afterwards, however the dust that cyclone aimed at can need be greater than 3 microns, however buggy granularity is 0~1000 microns, and the mode of sampling like this has following defect: 1. the conveying pipeline needs a good sealing effect, otherwise, the risk of coal dust overflow occurs, and the surrounding environment is polluted; 2. the cyclone separator is additionally arranged, so that the energy consumption is increased, the cyclone separator can not separate the pulverized coal 100%, and the problem of environmental pollution is also caused.
At present, the existing chinese patent with publication number CN204924750U discloses an online detection device for coal quality characteristics, and the device discloses three sampling modes, wherein two sampling modes are similar to those of the device, and meanwhile, the defects exist, while the third sampling mode adopts a mechanical arm to sample, and although the defects do not exist, the sampling mode has new defects: 1. in the process of feeding and discharging the sampling box into the air powder pipeline, the condition of powder coal overflow exists; 2. the sampling box samples from the wind powder pipeline, although the specific structure of the sampling box is not described, the structure of the sampling box has the problem of complex structure because of the airflow in the sampling environment (because the function of intercepting the coal dust is needed, the airflow flow cannot be influenced at the same time, and the upper layer of the wind powder pipeline is not enough in the kinetic energy of the airflow on the side, so that the coal dust conveying is influenced); 3. the coal dust sampled from the sampling device to the coal dust pressing device is exposed in the air and moves downwards in the air, and the condition that the coal dust is diffused exists.
To this end, we provide a coal quality detection apparatus capable of reducing the out-diffusion of coal fines.
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a coal quality detecting apparatus.
The invention realizes the above purpose through the following technical scheme:
the coal quality detection equipment comprises a sampling system for taking coal samples from a coal dust conveying belt and a detection analysis system for detecting and analyzing the coal samples collected by the sampling system, wherein the sampling system comprises a sampling pipe with a closed upper end, the lower end of the sampling pipe penetrates through a coal dust conveying belt protective cover in a sliding manner, a sampling motor is arranged at the closed end of the sampling pipe, the output end of the sampling motor is coaxially and rotatably connected with a screw shaft, and the screw shaft is coaxially and rotatably connected with an inner cavity of the sampling pipe; a sampling tube is arranged at one side of the top of the sampling tube;
the detection and analysis system comprises a cake pressing mechanism for pressing and forming the coal sample collected by the sampling system and a spectrum collection and analysis mechanism for detecting and analyzing the coal quality characteristics of the coal cake, wherein the cake pressing mechanism comprises a cake die for collecting the coal sample collected by the sampling system, and a pressing structure for pressing and forming the coal sample in the cake die is arranged above the cake die; the sampling tube is in driving connection with the pressing structure so that the sampling tube moves downwards, and the lower end of the sampling tube stretches into the pulverized coal of the pulverized coal conveying belt.
Preferably, an opening is arranged at one side of the lower end part of the sampling tube corresponding to the coal dust conveying belt.
Preferably, two sides of the opening are provided with outer edge plates extending outwards, and the two outer edge plates are splayed and correspond to a large opening end of one side of the pulverized coal conveying belt.
Preferably, the cake pressing mechanism further comprises a sealing cover reversely buckled on the outer side of the cake die, the sealing cover body is provided with a sample feeding pipe, the sample feeding pipe is correspondingly communicated with the sample discharging pipe through a hose, the bottom of the inner end of the sample feeding pipe is provided with a flow guiding part extending to the inside of the sealing cover so as to guide the coal sample to the inner cavity of the cake die, and the pressing structure is correspondingly provided with a central position of the top of the sealing cover.
Preferably, the lower section of the sealing cover is provided with an inclined plate encircling the periphery of the cake mould, and a discharge pipe for discharging redundant coal samples is arranged at the position of the sealing cover corresponding to the lower side part of the inclined plate.
Preferably, the pressing structure comprises a bidirectional screw rod vertically penetrating through the center of the top of the sealing cover, and a screw rod part of the bidirectional screw rod positioned in the sealing cover is in transmission fit with a threaded sliding sleeve so as to facilitate the threaded sliding sleeve to move up and down; the lower end of the threaded sliding sleeve extends to the lower part of the bidirectional screw rod, and is provided with a pressing head for pressing the coal sample in the cake mould into cakes;
the screw rod part of the bidirectional screw rod above the sealing cover is in transmission fit with a threaded sliding block, and the threaded sliding block is correspondingly connected with the sampling tube;
the pressing structure further comprises a cake pressing motor for driving the bidirectional screw rod to rotate forwards or reversely.
Preferably, a vertical telescopic rod is arranged between the pressure head and the inner top wall of the sealing cover.
Preferably, the spectrum collection and analysis mechanism comprises a detection box, a receiving chamber and a detection chamber are arranged in the inner cavity of the detection box along the length direction of the detection box, the lower end of the cake mould is open and correspondingly arranged on the top surface of the receiving chamber, a chute is arranged on the top surface of the receiving chamber along the length direction of the receiving chamber, and a sliding plate in sliding sealing fit with the lower end of the cake mould is slidably connected with the chute cavity along the length of the chute cavity;
the optical fiber laser is characterized in that a spectrometer is arranged on the top surface of the detection chamber, a laser (224) and an optical fiber probe which are correspondingly connected with the spectrometer are arranged in the inner cavity of the detection chamber, and a focusing lens (226) is arranged at the emitting end of the laser (224).
Preferably, the bottom surface in the detection box is an inclined surface, one section of the inclined surface corresponding to the detection chamber is a lower section, and the outer end of the detection chamber is provided with a chamber door capable of opening and closing.
Preferably, a blocking door capable of being automatically opened is arranged in the middle of the top wall of the detection chamber so as to divide the detection chamber into the receiving chamber and the detection chamber.
The beneficial effects are that:
1. due to the arrangement of the sampling system, the sampling work is realized in a mode of matching the screw shaft with the sampling pipe, the sampling work has no participation of strong air flow, and coal dust overflow is hardly caused even if all pipelines have small gaps, so that the technical problem that in the prior art, the conveying pipeline needs a good sealing effect, otherwise, the risk of coal dust overflow occurs, and the surrounding environment is polluted is solved;
2. the sampling system does not need strong air flow to participate, so that a cyclone separator is not needed, the technical problems that in the prior art, the energy consumption is increased due to the need of additionally arranging the cyclone separator, the cyclone separator can not separate pulverized coal 100%, and the surrounding environment is polluted are solved;
3. due to the arrangement of the sealing cover and the sample injection pipe, the coal dust is not outwards diffused between the sample exhaust pipe and the cake mould, so that the technical problems that the coal dust sampled from the sampling device to the coal dust pressing device in the prior art is exposed in the air and moves downwards in the air and the coal dust is diffused are solved;
4. due to the arrangement of the pressing structure, the number of power equipment can be reduced, the pressing head is located above the cake mould when the sampling system samples and works, the coal sample collected by the sampling system can be ensured to smoothly enter the inner cavity of the cake mould, the pressing head moves downwards when the sampling system presses and the sampling pipe rises, the sampling pipe is separated from each layer, and at the moment, even if the sampling motor forgets to close, the sampling system cannot collect the coal sample.
Additional features and advantages of the invention will be set forth in the description which follows, or may be learned by practice of the invention.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the invention and together with the description serve to explain, without limitation, the invention. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a cross-sectional view A-A of another construction of the present invention;
FIG. 6 is a B-B cross-sectional view of FIG. 3;
fig. 7 is a schematic view of the assembly of the present invention in use.
The reference numerals are explained as follows:
1. a sampling system; 11. a sampling tube; 111. an outer edge plate; 13. a sampling motor; 14. a screw shaft; 15. a discharge tube; 2. a detection analysis system; 21. a cake pressing mechanism; 211. cake mould; 212. a pressing structure; 2121. a bidirectional screw rod; 2122. a threaded sliding sleeve; 2123. a pressure head; 2124. a thread slider; 2125. a cake pressing motor; 2126. a vertical telescopic rod; 213. a sealing cover; 214. a sample inlet tube; 2141. a flow guiding part; 215. a sloping plate; 216. a discharge pipe; 22. a spectrum acquisition and analysis mechanism; 221. a detection box; 2211. a receiving chamber; 2212. a detection chamber; 2213. a chute; 222. a sliding plate; 223. a spectrometer; 224. a laser; 225. an optical fiber probe; 226. a focusing lens; 227. a chamber door; 228. plugging a door; 3. a coal dust conveying belt.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," 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 invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present invention, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.
In a first embodiment, as shown in fig. 1, a coal quality detection apparatus includes a sampling system 1 for sampling a coal sample from a coal dust conveyor belt 3, and a detection analysis system 2 for detecting and analyzing the coal sample collected by the sampling system 1.
1-2 and 4-5, the sampling system 1 comprises a sampling tube 11 with a closed upper end, wherein the lower end of the sampling tube 11 penetrates through a protective cover of the pulverized coal conveying belt 3 in a sliding manner, a sampling motor 13 is arranged at the closed end of the sampling tube 11, the output end of the sampling motor 13 is coaxially and rotatably connected with a screw shaft 14, and the screw shaft 14 is coaxially and rotatably connected with the inner cavity of the sampling tube 11; a sampling tube 15 is arranged on one side of the top of the sampling tube 11.
Further, as shown in fig. 1-2 and 4-5, an opening is arranged at the lower end part of the sampling tube 11 corresponding to one side of the pulverized coal conveyor belt 3 for feeding; the arrangement enables the coal dust on the coal dust conveying belt 3 to automatically enter the inner cavity of the lower end part of the sampling pipe 11, at the moment, the lower end of the screw shaft 14 can be positioned above the lower end surface of the sampling pipe 11, the screw shaft 14 can be effectively prevented from contacting the coal dust conveying belt 3, the coal dust conveying belt 3 is damaged, and meanwhile, the sampling efficiency can be improved;
further, as shown in fig. 1-2 and 4-5, two sides of the opening are provided with outer edge plates 111 extending outwards, and the two outer edge plates 111 are splayed and correspond to the large opening end of the feeding side of the pulverized coal conveyor belt 3; the coal dust on two sides of the sampling tube 11 can be gathered through the outer edge plate 111, and the gathered coal dust enters the inner cavity of the lower end part of the sampling tube 11 through the opening, so that the sampling efficiency is further improved.
Further, the lower end of the sampling tube 11 is provided with an outward thickening portion, that is, the upper and lower inner diameters of the sampling tube 11 are the same, and the outer diameter of the lower end of the sampling tube 11 is larger than that of other parts;
furthermore, in order to prevent the outer edge plate 111 from deforming, a supporting space is provided between the surface of the outer edge plate 111 corresponding to the pulverized coal taking out of the pulverized coal conveying belt 3 and the tube body of the sampling tube 11, so that the strength of the outer edge plate 111 is increased.
As shown in fig. 1-6, the detection and analysis system 2 comprises a cake pressing mechanism 21 for pressing and forming the coal sample collected by the sampling system 1 and a spectrum collection and analysis mechanism 22 for detecting and analyzing the coal quality characteristics of the coal cake, the cake pressing mechanism 21 comprises a cake die 211 for collecting the coal sample collected by the sampling system 1, and a pressing structure 212 for pressing and forming the coal sample in the cake die 211 is arranged above the cake die 211; the sampling tube 11 is drivingly connected to the hold-down structure 212 so that the sampling tube 11 moves downward such that the lower end of the sampling tube 11 extends into the pulverized coal of the pulverized coal conveyor belt 3.
The ram 2123 of the hold down mechanism 212 for holding down the coal sample to form the handle is moved in the opposite direction as the sample tube 11, as desired.
When the coal cake forming machine is used, the pressure head 2123 is enabled to rise to the upper portion of the cake forming die 211 through the pressing structure 212, meanwhile, the sampling tube 11 moves downwards, the lower end of the sampling tube 11 is inserted into a coal bed conveyed by the coal dust conveying belt 3, the sampling motor 13 is started at the moment, the sampling motor 13 drives the screw shaft 14 to rotate, the screw shaft 14 enables coal dust at the lower end of the sampling tube 11 to rise until the coal dust rises to the top of an inner cavity of the sampling tube 11, the coal dust is then discharged into the cake forming die 211 from the sample discharging tube 15, the coal dust in the cake forming die 211 is pressed into a cake shape through the pressing structure 212, and then the coal quality characteristics of a coal cake are detected and analyzed through the spectrum collecting and analyzing mechanism 22.
The setting is because sampling system 1's setting like this, realizes the work of sampling through screw axis 14 and sampling tube 11 complex mode, and the work of sampling does not have the participation of strong air current, even all pipelines exist little gap and also can hardly cause the buggy to spill over, has solved among the prior art, and conveying pipeline needs better sealed effect, otherwise appears the risk that buggy overflowed, leads to the surrounding environment to receive polluted technical problem.
The sampling system 1 does not need strong air flow to participate, so that a cyclone separator is not needed, the technical problems that in the prior art, the energy consumption is increased due to the need of additionally arranging the cyclone separator, the cyclone separator can not separate pulverized coal 100%, and the surrounding environment is polluted are solved;
the sampling system 1 samples from a coal seam which moves slowly, so that the sampling efficiency is higher.
In some embodiments, as shown in fig. 4-5, the cake pressing mechanism 21 further includes a sealing cover 213 reversely fastened to the outer side of the cake mold 211, the sealing cover 213 is provided with a sample inlet pipe 214, the sample inlet pipe 214 is correspondingly communicated with the sample outlet pipe 15 through a hose, the bottom of the inner end of the sample inlet pipe 214 is provided with a guiding part 2141 extending into the sealing cover 213 so as to guide the coal sample to the inner cavity of the cake mold 211, and the pressing structure 212 is correspondingly provided with a central position at the top of the sealing cover 213.
The lower end of the sealing cover 213 is provided with a positioning ring matched with the cake mould 211 according to the requirement, so that the sealing cover 213 is coaxial with the cake mould 211.
The pulverized coal discharged from the discharge pipe 15 thus disposed is introduced into the feed pipe 214 through a hose, then into the sealing cap 213, and then into the cake mold 211 by the deflector 2141.
Due to the arrangement of the sealing cover 213 and the sample injection pipe 214, the coal dust is not outwards diffused between the sample discharge pipe 15 and the cake mould 211, and the technical problems that the coal dust sampled from the sampling device to the coal dust pressing device in the prior art is exposed in the air and moves downwards in the air and the coal dust is diffused are solved.
Further, as shown in fig. 6, the lower section of the sealing cover 213 is provided with an inclined plate 215 surrounding the periphery of the cake mold 211, and the sealing cover 213 is provided with a discharge pipe 216 for discharging the excessive coal sample at a position corresponding to the lower side of the inclined plate 215; when the pulverized coal collected by the sampling system 1 is too much, the excessive pulverized coal overflows the cake mould 211 and falls on the inclined plate 215, and at the moment, the pulverized coal is discharged and collected through the discharge pipe 216 under the action of gravity, so that the excessive pulverized coal can be prevented from being overflowed in the flow guide part 2141 to be collected and discharged and recovered in a concentrated mode.
In some embodiments, as shown in fig. 4-5, the hold-down structure 212 includes a bi-directional screw 2121 extending vertically through a top center of the seal housing 213, and a screw portion of the bi-directional screw 2121 located inside the seal housing 213 is drivingly engaged with a threaded sliding sleeve 2122 to facilitate the movement of the threaded sliding sleeve 2122 up and down; the lower end of the threaded sliding sleeve 2122 extends to the lower part of the bidirectional screw 2121 and is provided with a pressure head 2123 for pressing the coal sample in the cake mould 211 into cakes;
the screw part of the bidirectional screw 2121 above the sealing cover 213 is in transmission fit with a threaded slide block 2124, and the threaded slide block 2124 is correspondingly connected with the sampling tube 11;
the hold-down mechanism 212 also includes a cookie pressing motor 2125 for driving the bi-directional lead screw 2121 forward or backward.
If necessary, a vertical telescopic rod 2126 is provided between the ram 2123 and the inner top wall of the sealing cover 213 in order to prevent the ram 2123 from rotating.
If necessary, when the distance between the bidirectional screw 2121 and the sampling tube 11 is long, the sampling tube 11 may be fixedly connected to the screw slider 2124 by other means.
The device is arranged in such a way, during sampling, the bidirectional screw 2121 can be driven to rotate by the cake pressing motor 2125, the bidirectional screw 2121 drives the threaded sliding sleeve 2122 to ascend, and then the pressure head 2123 is driven to ascend to the upper part of the cake mould 211, and meanwhile, the bidirectional screw 2121 also drives the threaded sliding block 2124 to descend, so that the sampling pipe 11 descends, and the lower end of the sampling pipe 11 is inserted into the coal layer in the coal dust conveying belt 3; during pressing, the bidirectional screw rod 2121 can be driven to rotate in the opposite direction through the cake pressing motor 2125, the bidirectional screw rod 2121 drives the threaded sliding sleeve 2122 to descend, the pressure head 2123 is driven to descend into the cake mold 211, coal dust in the cake mold 211 is pressed into a cake shape, meanwhile, the bidirectional screw rod 2121 also drives the threaded sliding block 2124 to ascend, the sampling pipe 11 is caused to ascend, the lower end of the sampling pipe 11 is caused to be separated from a coal bed in the coal dust conveying belt 3 and ascend to the inner top of the protective cover of the coal dust conveying belt 3, and at the moment, the sampling system 1 stops sampling work.
Due to the arrangement of the pressing structure 212, the pressure head 2123 and the sampling tube 11 cooperatively work, the number of power equipment can be reduced, the pressure head 2123 can be positioned above the cake mould 211 when the sampling system 1 samples and works, the coal sample collected by the sampling system 1 can be ensured to smoothly enter the inner cavity of the cake mould 211, the pressure head 2123 moves downwards when the sampling system is pressed and works, meanwhile, the sampling tube 11 rises, the sampling tube 11 is separated from each layer, and at the moment, even if the sampling motor 13 forgets to close, the sampling system 1 cannot collect the coal sample.
In some embodiments, as shown in fig. 4, the spectrum collection and analysis mechanism 22 includes a detection box 221, a receiving chamber 2211 and a detection chamber 2212 are disposed in an inner cavity of the detection box 221 along a length direction of the detection box, a lower end of the cake mold 211 is open and correspondingly mounted on a top surface of the receiving chamber 2211, a sliding groove 2213 is disposed in the top surface of the receiving chamber 2211 along the length direction of the receiving chamber, and a sliding plate 222 in sliding sealing fit with the lower end of the cake mold 211 is slidably connected to a groove cavity of the sliding groove 2213 along the length direction of the receiving chamber.
According to the needs, the sliding plate 222 can be manually moved, other devices such as an air cylinder can be adopted to drive the sliding plate 222 to move, and the sliding plate is specifically selected according to the actual needs and is not limited herein.
The arrangement can be that the sliding plate 222 is moved so that the sliding plate 222 is far away from the lower end of the cake mould 211, at this time, the coal sample pressed into the cake falls into the receiving chamber 2211 under the action of gravity, and then the coal cake in the receiving chamber 2211 is transferred into the detecting chamber 2212 for measurement.
In other embodiments, as shown in fig. 5, the sliding plate 222 may be provided with a blanking port at one end adapted to the inner cavity of the cake mold 211, and when the sliding plate 222 is moved, the blanking port is coaxial with the cake mold 211, and the coal sample pressed into the cake may fall into the receiving chamber 2211 through the blanking port.
Further, as shown in fig. 4-5, the inner bottom surface of the detection box 221 is an inclined surface, and a section of the inclined surface corresponding to the detection chamber 2212 is a lower section, and the outer end of the detection chamber 2212 is provided with a chamber door 227 capable of opening and closing; the cake mold 211 thus set to fall into the receiving chamber 2211 can be automatically moved into the detecting chamber 2212 by gravity.
Further, as shown in fig. 4-5, a sealing door 228 capable of being automatically opened is provided in the middle of the inner top wall of the detection chamber 2212, so as to divide the detection chamber 2212 into a receiving chamber 2211 and a detection chamber 2212.
Specifically, the top of the blocking door 228 is correspondingly hinged to the inner top wall of the detection chamber 2212, so that the blocking door 228 is in a vertical state under the action of gravity, and the detection chamber 2212 is in a relatively airtight state.
In some embodiments, as shown in fig. 4-5, the detection chamber 2212 is provided with a detection assembly, specifically, the detection assembly includes a spectrometer 223 disposed on the top surface of the detection chamber 2212, a laser (224) and a fiber probe 225 correspondingly connected to the spectrometer 223 are disposed in the inner cavity of the detection chamber 2212, and a focusing lens (226) is disposed at the emitting end of the laser (224).
In other embodiments, the detection assembly may also employ prior art detection devices for detection.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and their equivalents.
Claims (10)
1. The utility model provides a coal quality check out test set which characterized in that: the coal sampling device comprises a sampling system (1) for taking coal samples from a coal dust conveying belt (3), and a detection analysis system (2) for detecting and analyzing the coal samples collected by the sampling system (1), wherein the sampling system (1) comprises a sampling pipe (11) with a closed upper end, the lower end of the sampling pipe (11) penetrates through a protective cover of the coal dust conveying belt (3) in a sliding mode, a sampling motor (13) is arranged at the closed end of the sampling pipe (11), a screw shaft (14) is coaxially and rotatably connected to the output end of the sampling motor (13), and the screw shaft (14) is coaxially and rotatably connected to the inner cavity of the sampling pipe (11); a sampling tube (15) is arranged at one side of the top of the sampling tube (11);
the detection analysis system (2) comprises a cake pressing mechanism (21) for pressing and forming the coal sample collected by the sampling system (1) and a spectrum collection analysis mechanism (22) for detecting and analyzing the coal quality characteristics of the coal cake, the cake pressing mechanism (21) comprises a cake die (211) for collecting the coal sample collected by the sampling system (1), and a pressing structure (212) for pressing and forming the coal sample in the cake die is arranged above the cake die (211); the sampling tube (11) is in driving connection with the pressing structure (212) so that the sampling tube (11) moves downwards, and the lower end of the sampling tube (11) stretches into the pulverized coal of the pulverized coal conveying belt (3).
2. The coal quality detection apparatus according to claim 1, wherein: an opening is arranged at one side of the lower end part of the sampling tube (11) corresponding to the feeding material of the coal dust conveying belt (3).
3. The coal quality detection apparatus according to claim 2, wherein: two sides of the opening are provided with outer edge plates (111) extending outwards, and the two outer edge plates (111) are splayed and correspond to the large opening end of one side of the pulverized coal conveying belt (3) for feeding.
4. The coal quality detection apparatus according to claim 1, wherein: the cake pressing mechanism (21) further comprises a sealing cover (213) reversely buckled on the outer side of the cake die (211), a sample feeding pipe (214) is arranged on the cover body of the sealing cover (213), the sample feeding pipe (214) is correspondingly communicated with the sample discharging pipe (15) through a hose, a flow guide part (2141) extending to the inside of the sealing cover (213) is arranged at the bottom of the inner end of the sample feeding pipe (214) so as to guide a coal sample to the inner cavity of the cake die (211), and the pressing structure (212) is correspondingly provided with the central position of the top of the sealing cover (213).
5. The coal quality detection apparatus according to claim 4, wherein: the lower section of the sealing cover (213) is provided with an inclined plate (215) encircling the periphery of the cake mould (211), and a discharge pipe (216) for discharging redundant coal samples is arranged at a position of the sealing cover (213) corresponding to the lower side part of the inclined plate (215).
6. The coal quality detection apparatus according to claim 4, wherein: the pressing structure (212) comprises a bidirectional screw rod (2121) vertically penetrating through the center of the top of the sealing cover (213), and a screw rod part of the bidirectional screw rod (2121) positioned inside the sealing cover (213) is in transmission fit with a threaded sliding sleeve (2122) so that the threaded sliding sleeve (2122) can move up and down; the lower end of the threaded sliding sleeve (2122) extends to the lower part of the bidirectional screw rod (2121), and a pressure head (2123) for pressing the coal sample in the cake mould (211) into a cake is arranged;
the screw part of the bidirectional screw (2121) above the sealing cover (213) is in transmission fit with a threaded slider (2124), and the threaded slider (2124) is correspondingly connected with the sampling tube (11);
the pressing structure (212) further comprises a cake pressing motor (2125) for driving the bidirectional screw rod (2121) to rotate forwards or reversely.
7. The coal quality detection apparatus according to claim 6, wherein: a vertical telescopic rod (2126) is arranged between the pressure head (2123) and the inner top wall of the sealing cover (213).
8. The coal quality detection apparatus according to claim 1, wherein: the spectrum collection and analysis mechanism (22) comprises a detection box (221), a receiving chamber (2211) and a detection chamber (2212) are arranged in the inner cavity of the detection box (221) along the length direction of the detection box, the lower end of the cake mould (211) is open and correspondingly arranged on the top surface of the receiving chamber (2211), a chute (2213) is arranged on the top surface of the receiving chamber (2211) along the length direction of the receiving chamber, and a sliding plate (222) in sliding sealing fit with the lower end of the cake mould (211) is slidably connected with the chute (2213) along the length direction of the chute;
the optical fiber laser is characterized in that a spectrometer (223) is arranged on the top surface of the detection chamber (2212), a laser (224) and an optical fiber probe (225) which are correspondingly connected with the spectrometer (223) are arranged in the inner cavity of the detection chamber (2212), and a focusing lens (226) is arranged at the emitting end of the laser (224).
9. The coal quality detection apparatus according to claim 8, wherein: the inner bottom surface of the detection box (221) is an inclined surface, one section of the inclined surface corresponding to the detection chamber (2212) is a lower section, and the outer end of the detection chamber (2212) is provided with a chamber door (227) capable of opening and closing.
10. The coal quality detection apparatus according to claim 8, wherein: the middle part of the inner top wall of the detection chamber (2212) is provided with a blocking door (228) which can be automatically opened so as to divide the detection chamber into the receiving chamber (2211) and the detection chamber (2212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310712982.6A CN117092034A (en) | 2023-06-16 | 2023-06-16 | Coal quality detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310712982.6A CN117092034A (en) | 2023-06-16 | 2023-06-16 | Coal quality detection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117092034A true CN117092034A (en) | 2023-11-21 |
Family
ID=88775910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310712982.6A Withdrawn CN117092034A (en) | 2023-06-16 | 2023-06-16 | Coal quality detection equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117092034A (en) |
-
2023
- 2023-06-16 CN CN202310712982.6A patent/CN117092034A/en not_active Withdrawn
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Application publication date: 20231121 |