CN106289878B - Sampling device and coal conveying sampling equipment - Google Patents
Sampling device and coal conveying sampling equipment Download PDFInfo
- Publication number
- CN106289878B CN106289878B CN201610675833.7A CN201610675833A CN106289878B CN 106289878 B CN106289878 B CN 106289878B CN 201610675833 A CN201610675833 A CN 201610675833A CN 106289878 B CN106289878 B CN 106289878B
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- sampling
- side wall
- spoon
- arm
- installation part
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- 238000005070 sampling Methods 0.000 title claims abstract description 196
- 239000003245 coal Substances 0.000 title claims abstract description 18
- 238000009434 installation Methods 0.000 claims description 20
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a sampling device and coal conveying sampling equipment, wherein the sampling device comprises a sampling arm (2) and a sampling spoon (1) connected with one end of the sampling arm (2) and provided with a sampling cavity, and the transverse width of the sampling cavity of the sampling spoon (1) is adjustable. The sampling device and the coal conveying sampling equipment provided by the invention can effectively realize full-section sampling and prevent the problem that the bucket elevator is blocked due to overlarge sampling amount or sampling is not representative due to half-section sampling.
Description
Technical Field
The invention relates to a sampling technology, in particular to a sampling device and coal conveying sampling equipment.
Background
The thermal power plant mostly uses coal as fuel, and sampling equipment is usually arranged in a coal conveying system for grasping data indexes such as heating value of the coal.
At present, the sampling amount of a sampling device in sampling equipment is fixed and is larger, so that the sampling device is lifted to sample the half section of the belt coal flow in order to avoid the blockage of a bucket elevator caused by a large amount of sample discarding. However, the long-term test comparison shows that the half-section sampling is not representative of the calorific value of the coal, and the deviation is larger. If the half-section sampling is not adopted, a large amount of abandoned samples (abandoned samples are conveyed by the bucket elevator) are caused, so that the bucket elevator is easy to block, and the normal sampling of the sampler is affected.
Therefore, a new sampling device is needed to overcome the problems of the sampling devices in the prior art.
Disclosure of Invention
The invention aims to provide a sampling device and coal conveying sampling equipment, which are used for solving the problems that in the prior art, the sampling device is large in sampling quantity, the bucket elevator is easy to block, and sampling is not representative due to sampling of a sampling half section.
In order to achieve the above object, the invention provides a sampling device, which comprises a sampling arm and a sampling spoon connected with one end of the sampling arm and provided with a sampling cavity, wherein the transverse width of the sampling cavity of the sampling spoon is adjustable.
Preferably, the sampling spoon comprises a first side wall and a second side wall which are respectively connected to two sides of the sampling arm, the first side wall, the second side wall and a connecting wall connected between the first side wall and the second side wall form the sampling cavity, and the sampling spoon further comprises an adjusting mechanism for adjusting the distance between the first side wall and the second side wall so as to adjust the transverse width of the sampling cavity.
Preferably, the adjusting mechanism comprises a connecting bolt with two ends respectively connected to the first side wall and the second side wall.
Preferably, the second side wall is fixed relative to the sampling arm in the transverse direction, and the position of the first side wall in the transverse direction is adjusted by the connecting bolt.
Preferably, the sampling spoon and the sampling arm are elastically connected through an elastic connecting mechanism.
Preferably, the two sides of the sampling arm are respectively provided with a first installation part, the two sides of the sampling spoon are respectively provided with a second installation part corresponding to the first installation part, the elastic connection mechanism comprises a rod-shaped piece, two ends of the rod-shaped piece are respectively installed on the first installation part and the second installation part on the corresponding sides, one end of the rod-shaped piece can axially move relative to the first installation part or the second installation part, the elastic connection mechanism further comprises a spiral spring respectively sleeved on the rod-shaped piece, and two ends of the spiral spring respectively prop against the first installation part and the second installation part.
Preferably, each side of the sampling arm is provided with at least two of the rod-like members, respectively.
Preferably, the end of the sampling scoop remote from the sampling arm is provided with a flexible guard.
Preferably, the flexible guard comprises a rubber band secured along edges of the first and second side walls, respectively.
The invention also provides coal conveying sampling equipment which comprises the sampling device.
According to the sampling device and the coal conveying sampling equipment, the width of the sampling cavity of the sampling spoon is adjustable, and the sampling amount of the sampling spoon can be flexibly adjusted according to requirements, so that the problem that the sampling bucket elevator of the coal conveying sampling equipment is easy to block due to overlarge sampling amount is solved, and the maintenance workload is greatly reduced. And the full-section sampling can be effectively realized by adjusting the sampling volume by adjusting the width of the sampling cavity, so that the problem that the sampling caused by adopting half-section sampling for reducing the sampling volume in the prior art is not representative is solved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
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 a sampling device according to an embodiment of the present invention;
fig. 2 is a schematic view of the sampling device shown in fig. 1 from another direction.
Description of the reference numerals
1-sampling a spoon; 11-a first sidewall;
12-a second sidewall; 13-connecting walls;
14-connecting bolts; 15-a rubber ribbon;
2-sampling arms; 21-a hinge hole;
3-a first mounting portion; 4-a second mounting portion;
5-a rod-like member; 6-coil spring.
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
The invention provides a sampling device, which comprises a sampling arm 2, wherein one end of the sampling arm 2 is connected with a sampling spoon 1 formed with a sampling cavity, and the transverse width of the sampling cavity of the sampling spoon 1 is adjustable.
According to the technical scheme provided by the invention, the width of the sampling cavity of the sampling spoon 1 is adjustable, and the sampling amount of the sampling spoon 1 can be flexibly adjusted according to requirements, so that the problem that a sampling bucket elevator is easy to block due to overlarge sampling amount of coal conveying sampling equipment is solved, and the maintenance workload is greatly reduced. And the full-section sampling can be effectively realized by adjusting the sampling volume by adjusting the width of the sampling cavity, so that the problem that the sampling caused by adopting half-section sampling for reducing the sampling volume in the prior art is not representative is solved.
In a preferred embodiment of the present invention, as shown in fig. 1 and 2, the sampling ladle 1 specifically includes a first sidewall 11 and a second sidewall 12 connected to both sides of the sampling arm 2, respectively, the first sidewall 11, the second sidewall 12, and a connecting wall 13 connected between the first sidewall 11 and the second sidewall 12 form the sampling cavity for sampling, and the sampling ladle 1 further includes an adjusting mechanism for adjusting a distance between the first sidewall 11 and the second sidewall 12, and the lateral width of the sampling cavity of the sampling ladle 1 is adjusted by adjusting the distance between the first sidewall 11 and the second sidewall 12 by the adjusting mechanism, so that the sampling amount of the sampling ladle 1 can be adjusted.
Preferably, the adjusting mechanism includes a connecting bolt 14 having both ends connected to the first and second side walls 11 and 12, respectively.
In particular, the second side wall 12 is fixed in the transverse direction with respect to the sampling arm 2, only the position of the first side wall 11 in the transverse direction being adjustable by means of said connecting bolts 14. Of course, it is also possible to provide that the positions of both the first side wall 11 and the second side wall 12 in the lateral direction are adjustable.
In addition, it should be noted that the adjusting mechanism capable of adjusting the distance between the first side wall 11 and the second side wall 12 is not limited to the manner of adjusting by the connecting bolt 14, and for example, the connecting structures of the first side wall 11 and the second side wall 12 on the sampling arm 2 may be provided, respectively, so that the connecting positions of the first side wall 11 and the second side wall 12 on the sampling arm 2 are adjustable by the connecting structures, thereby making the distance between the first side wall 11 and the second side wall 12 adjustable.
In this embodiment, the sampling spoon 1 and the sampling arm 2 are elastically connected by the elastic connection mechanism, so that when the sampling spoon 1 samples, the head of the sampling spoon 1 receives resistance, that is, upward thrust, and the sampling spoon 1 can self-adjust under the action of the upward thrust by the elastic force of the elastic connection mechanism, that is, when the sampling spoon 1 receives the thrust in the direction towards the sampling arm 2, the sampling spoon 1 can retract a certain distance relative to the sampling arm 2 towards the direction of the sampling arm 2, thereby preventing the sampling spoon 1 from scratching a conveying belt. When the sampling is finished or the sampling is not finished, the sampling spoon 1 is not pushed upwards, and the sampling spoon 1 resets under the action of elasticity of the elastic connecting mechanism.
Preferably, as shown in fig. 1 and 2, a first mounting portion 3 is respectively disposed on two sides of the sampling arm 2, a second mounting portion 4 corresponding to the first mounting portion 3 is respectively disposed on two sides of the sampling spoon 1, the elastic connection mechanism includes a rod-shaped member 5 with two ends respectively mounted on the first mounting portion 3 and the second mounting portion 4 on corresponding sides, and one end of the rod-shaped member 5 can axially move relative to the first mounting portion 3 or the second mounting portion 4, the elastic connection mechanism further includes a coil spring 6 respectively sleeved on the rod-shaped member 5, and two ends of the coil spring 6 respectively prop against the first mounting portion 3 and the second mounting portion 4. Wherein the first mounting portion 3 and the second mounting portion 4 are preferably plate-shaped members, and are respectively and transversely fixed on the sampling arm 2 and the sampling spoon 1. The rod 5 is preferably a screw having threads at both ends so that the ends of the rod 5 can be mounted with nuts by threading the ends of the rod 5 over the first mounting portion 3 and the second mounting portion 4 to prevent the rod 5 from being separated from the first mounting portion 3 and the second mounting portion 4.
When sampling spoon 1 carries out the sampling, the tip of sampling spoon 1 receives ascending thrust, and sampling spoon 1 upwards removes under the effect of this thrust and adjusts to prevent that sampling spoon 1 fish tail conveyor belt, shaft-like piece 5 at this moment is relative first installation department 3 or second installation department 4 axial displacement, and coil spring 6 receives the compression, finishes sampling or does not carry out the sampling, and sampling spoon 1 resets under coil spring 6's elasticity effect.
Preferably, in order to allow a mobile adjustment of the sampling ladle 1 with respect to the sampling arm 2, at least two of said bars 5 are provided on each side of the sampling arm 2.
It will be appreciated by those skilled in the art that the elastic connection mechanism connected between the sampling arm 2 and the sampling spoon 1 is not limited to the arrangement in this embodiment, for example, a concave hole may be provided on the sampling arm 2, an elastic member is provided in the concave hole, a convex portion is provided on the sampling spoon 1 (meanwhile, a connection member for preventing the sampling spoon 1 from being separated from the sampling arm 2 is provided between the sampling arm 2 and the sampling spoon 1), and when the sampling spoon 1 samples, the convex portion on the sampling spoon 1 is pushed against a spring in the concave hole of the sampling arm 2, so that the elastic movement of the sampling spoon 1 can be realized to perform adjustment.
Furthermore, in the present embodiment, the end of the sampling ladle 1 remote from the sampling arm 2 is preferably provided with a flexible guard.
More preferably, as shown in fig. 1 and 2, the flexible guard includes a rubber band 15 fixed along edges of the first and second sidewalls 11 and 12, respectively, and the rubber band 15 may be fixed to the first and second sidewalls 11 and 12 by fasteners such as bolts.
The flexible protection piece is arranged on the sampling spoon 1, so that full-section sampling of the sampling head can be effectively realized, and the risk that the metal sampling head scratches the coal conveying adhesive tape can not occur.
The invention also provides coal conveying sampling equipment which comprises the sampling device. Through sampling the sampling device as described above, the sampling amount can be adjusted as required, and the problem that the bucket elevator in the sampling equipment is blocked due to overlarge sampling amount is avoided.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and all the simple modifications belong to the protection scope of the present invention.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations of the invention are not described in detail in order to avoid unnecessary repetition.
Moreover, any combination of the various embodiments of the invention can be made without departing from the spirit of the invention, which should also be considered as disclosed herein.
Claims (6)
1. The sampling device is characterized by comprising a sampling arm (2) and a sampling spoon (1) connected with one end of the sampling arm (2) and formed with a sampling cavity, wherein the transverse width of the sampling cavity of the sampling spoon (1) is adjustable;
the sampling spoon (1) is elastically connected with the sampling arm (2) through an elastic connecting mechanism;
the sampling device comprises a sampling arm (2), a sampling spoon (1) and a spring connecting mechanism, wherein two sides of the sampling arm (2) are respectively provided with a first installation part (3), two sides of the sampling spoon (1) are respectively provided with a second installation part (4) corresponding to the first installation part (3), the spring connecting mechanism comprises a rod-shaped piece (5) with two ends respectively installed on the first installation part (3) and the second installation part (4) on the corresponding sides, one end of the rod-shaped piece (5) can axially move relative to the first installation part (3) or the second installation part (4), the spring connecting mechanism further comprises a coil spring (6) respectively sleeved on the rod-shaped piece (5), and two ends of the coil spring (6) are respectively propped against the first installation part (3) and the second installation part (4);
the sampling spoon (1) comprises a first side wall (11) and a second side wall (12) which are respectively connected to two sides of the sampling arm (2), the first side wall (11), the second side wall (12) and a connecting wall (13) connected between the first side wall (11) and the second side wall (12) form a sampling cavity, and the sampling spoon (1) further comprises an adjusting mechanism for adjusting the distance between the first side wall (11) and the second side wall (12) so as to adjust the transverse width of the sampling cavity;
the adjusting mechanism comprises a connecting bolt (14) with two ends respectively connected to the first side wall (11) and the second side wall (12).
2. The sampling device according to claim 1, characterized in that the second side wall (12) is fixed in relation to the sampling arm (2) in the transverse direction, the position of the first side wall (11) in the transverse direction being adjusted by means of the connecting bolt (14).
3. The sampling device according to claim 1, characterized in that each side of the sampling arm (2) is provided with at least two of the rod-like members (5), respectively.
4. A sampling device according to any one of claims 1-3, characterized in that the end of the sampling ladle (1) remote from the sampling arm (2) is provided with a flexible guard.
5. The sampling device according to claim 4, characterized in that the flexible guard comprises a rubber band (15) fixed along the edges of the first side wall (11) and the second side wall (12), respectively.
6. A coal conveying sampling apparatus comprising a sampling device according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610675833.7A CN106289878B (en) | 2016-08-16 | 2016-08-16 | Sampling device and coal conveying sampling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610675833.7A CN106289878B (en) | 2016-08-16 | 2016-08-16 | Sampling device and coal conveying sampling equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106289878A CN106289878A (en) | 2017-01-04 |
| CN106289878B true CN106289878B (en) | 2023-11-21 |
Family
ID=57678519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610675833.7A Active CN106289878B (en) | 2016-08-16 | 2016-08-16 | Sampling device and coal conveying sampling equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN106289878B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367399A (en) * | 2017-07-23 | 2017-11-21 | 马飞 | Automatic coal sampling device |
| CN110146344B (en) * | 2018-02-12 | 2021-12-03 | 中冶长天国际工程有限责任公司 | Method and device for accurately and definitely measuring and sampling materials of belt conveyor |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3280635A (en) * | 1963-07-12 | 1966-10-25 | Lorraine Houilleres | Automatic sampler with scooping-wheel |
| CN2137357Y (en) * | 1992-09-30 | 1993-06-30 | 中国矿业大学 | Sampling device for coal flow on belt |
| CN2187789Y (en) * | 1992-10-19 | 1995-01-18 | 山东南定热电厂 | Swing-arm type coal sampler |
| US5392659A (en) * | 1993-05-04 | 1995-02-28 | Tema Systems, Inc. | Apparatus for providing multiple samples of material from a moving conveyor |
| US5767421A (en) * | 1995-06-07 | 1998-06-16 | Heron Holdings, A Limited Liability Company | Belt conveyor cross-stream sampling system |
| CN1754026A (en) * | 2003-02-25 | 2006-03-29 | 詹路卡·马拉克里诺 | Bucket or scoop with adjustable capacity |
| JP2009095314A (en) * | 2007-10-19 | 2009-05-07 | Japan Tobacco Inc | Device for sampling rod-like article |
| WO2010068983A1 (en) * | 2008-12-18 | 2010-06-24 | Geoffrey John Lyman | Materials conveyed on a conveyor belt |
| CN102749217A (en) * | 2012-08-01 | 2012-10-24 | 北京冶联科技有限公司 | System and method for intelligent division of coal samples in heat power plant |
| CN202748244U (en) * | 2012-08-01 | 2013-02-20 | 北京冶联科技有限公司 | Shovel head of thermal power plant coal sample intelligent splitting device |
| CN203249787U (en) * | 2013-05-08 | 2013-10-23 | 金东纸业（江苏）股份有限公司 | Coal flow sampling device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007147201A1 (en) * | 2006-06-19 | 2007-12-27 | Geoffrey John Lyman | Cross-belt sampler for materials conveyed on a belt conveyor |
-
2016
- 2016-08-16 CN CN201610675833.7A patent/CN106289878B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3280635A (en) * | 1963-07-12 | 1966-10-25 | Lorraine Houilleres | Automatic sampler with scooping-wheel |
| CN2137357Y (en) * | 1992-09-30 | 1993-06-30 | 中国矿业大学 | Sampling device for coal flow on belt |
| CN2187789Y (en) * | 1992-10-19 | 1995-01-18 | 山东南定热电厂 | Swing-arm type coal sampler |
| US5392659A (en) * | 1993-05-04 | 1995-02-28 | Tema Systems, Inc. | Apparatus for providing multiple samples of material from a moving conveyor |
| US5767421A (en) * | 1995-06-07 | 1998-06-16 | Heron Holdings, A Limited Liability Company | Belt conveyor cross-stream sampling system |
| CN1754026A (en) * | 2003-02-25 | 2006-03-29 | 詹路卡·马拉克里诺 | Bucket or scoop with adjustable capacity |
| JP2009095314A (en) * | 2007-10-19 | 2009-05-07 | Japan Tobacco Inc | Device for sampling rod-like article |
| WO2010068983A1 (en) * | 2008-12-18 | 2010-06-24 | Geoffrey John Lyman | Materials conveyed on a conveyor belt |
| CN102749217A (en) * | 2012-08-01 | 2012-10-24 | 北京冶联科技有限公司 | System and method for intelligent division of coal samples in heat power plant |
| CN202748244U (en) * | 2012-08-01 | 2013-02-20 | 北京冶联科技有限公司 | Shovel head of thermal power plant coal sample intelligent splitting device |
| CN203249787U (en) * | 2013-05-08 | 2013-10-23 | 金东纸业（江苏）股份有限公司 | Coal flow sampling device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106289878A (en) | 2017-01-04 |
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