CN209069663U - Coal fines sampling apparatus - Google Patents
Coal fines sampling apparatus Download PDFInfo
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- CN209069663U CN209069663U CN201821563703.5U CN201821563703U CN209069663U CN 209069663 U CN209069663 U CN 209069663U CN 201821563703 U CN201821563703 U CN 201821563703U CN 209069663 U CN209069663 U CN 209069663U
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Abstract
The utility model relates to a kind of coal fines sampling apparatus, comprising: sampling seat, for being attached to the tube cell of coal pulverizer, and sampling seat includes powder inlet pipe road and rotatable lever；Gas-tight silo, gas-tight silo are set on sampling seat, for being located at preset sampling hole on tube cell；Probe tube, probe tube are connected one end in powder inlet pipe road and are drivingly connected with lever, and probe tube is used to be inserted into tube cell through sampling hole, and probe tube offers powder entering hole, enables powder entering hole opposite with pulverized coal flow by probe tube rotation；And collection sample bottle, the other end connection of collection sample bottle and powder inlet pipe road.It is used not only to the technical ability of operator and quantitative requirement reduction, conducive to using manpower and material resources sparingly, installing and using by gas-tight silo simultaneously, coal dust can also be effectively prevent to leak, ensure the accuracy of coal dust sampling, it avoids polluting the environment, conducive to the adjustment of later period coal pulverizer fineness of pulverized coal and the adjustment of powder manufacturing apparatus coal-air ratio and safe operation of the boiler.
Description
Technical field
The utility model relates to coal-fired power generator set fields, more particularly to a kind of coal fines sampling apparatus.
Background technique
Currently, in order to guarantee to monitor wind coal proportion to improve Boiler Economical Operation, usually being needed in coal fired power generation industry
Analysis is sampled to the coal dust of supply, and coal dust sampling is with regard to needing to use dedicated sampler.Existing sampling dress
When being set to hand-held, in use, first reserving sampling hole on the tube cell of pressurized direct pulverizing coal system, sampler is inserted into later
Sampling hole, then collect with the mode of self-spray the coal dust in tube cell.This kind of mode of operation not only needs 2~3 coordinateds to operate
At expending excessive manpower and material resources；Serious leakage of pulverized coal risk is existed simultaneously, is polluted the environment, and samples accuracy
It is not easy to control, it is unfavorable for the adjustment of later period coal pulverizer fineness of pulverized coal and powder manufacturing apparatus coal-air ratio adjusts and safe operation of the boiler.
Utility model content
Based on this, it is necessary to provide a kind of coal fines sampling apparatus, can be realized accurate, the safety sampling of coal dust, prevent from sending out
Raw leakage of pulverized coal, avoids polluting the environment while influencing equipment reliability service.
Its technical solution is as follows:
A kind of coal fines sampling apparatus, comprising:
Seat is sampled, for being attached to the tube cell of coal pulverizer, and the sampling seat includes powder inlet pipe road and rotatable behaviour
Make handle；
Gas-tight silo, the gas-tight silo are set on the sampling seat, for being located at preset sampling hole on the tube cell
On；
Probe tube, the probe tube is connected one end in the powder inlet pipe road and is drivingly connected with the lever, described
Probe tube is used to be inserted into the tube cell through the sampling hole, and the probe tube offers powder entering hole, is taken by described
The rotation of sample pipe enables the powder entering hole opposite with pulverized coal flow；And
Collect sample bottle, the other end connection of the collection sample bottle and the powder inlet pipe road.
Above-mentioned coal fines sampling apparatus is used to be sampled the coal dust of supply boiler combustion, in order to carry out to coal dust quality
Analysis and regulation.It is fixed on the tube cell outer wall of coal pulverizer in use, seat will be sampled first, later by probe tube by being preset in powder
Inside sampling hole insertion tube cell on tube wall, and then rotation process handle turns to the powder entering hole on probe tube and coal dust
The opposite position in the flow direction of stream, in this way, coal dust can automatically flow into probe tube by powder entering hole, and most by probe tube
It is flowed into collection sample bottle eventually, to complete the sampling operation of coal dust.In this way, compared to traditional sampling equipment, use is not only right
The technical ability and quantitative requirement of operator reduce, can be with conducive to using manpower and material resources sparingly, while installing and using by gas-tight silo
It effectively prevent coal dust to leak, it is ensured that the accuracy of coal dust sampling avoids polluting the environment, is conducive to later period coal-grinding machine-made egg-shaped or honey-comb coal briquets
The adjustment of powder fineness and the adjustment of powder manufacturing apparatus coal-air ratio and safe operation of the boiler.
The technical solution of the application is further described below:
It in one of the embodiments, further include display device and coal power flowmeter, the coal power flowmeter is set to institute
It states in powder inlet pipe road, the display device is set on the sampling seat and is electrically connected with the coal power flowmeter.
In one of the embodiments, further include separator, the separator be connected to the end in the powder inlet pipe road with
Between the collection sample bottle.
It in one of the embodiments, further include sampling valve, the sampling valve is installed on the sampling seat and is connected to
In the powder inlet pipe road.
It in one of the embodiments, further include scavenging conduit, the scavenging conduit is set on the sampling seat, and described is blown
The one end and the probe tube for sweeping pipe are connected, and the other end of the scavenging conduit is used to connect with compressed gas source.
It in one of the embodiments, further include blow down valve, the blow down valve is installed on the sampling seat and is connected to
In the scavenging conduit.
It in one of the embodiments, further include air valve, the air valve is connected in the scavenging conduit and is located at institute
State the upstream of blow down valve.
It in one of the embodiments, further include pressure gauge, the pressure gauge is connected in the scavenging conduit and is set to
Between the air valve and the blow down valve.
In one of the embodiments, further include in megaphone-shaped into prostitute, the small end into prostitute and it is described into
Powder hole is connected, and the big end into prostitute is for opposite with pulverized coal flow.
In one of the embodiments, further include wear strip, the wear strip be set on the probe tube and with it is described
Powder entering hole circumferentially misplaces arrangement.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of coal fines sampling apparatus described in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of coal fines sampling apparatus use state described in an embodiment of the present invention.
Description of symbols:
100, sampling seat, 110, powder inlet pipe road, 120, lever, 200, gas-tight silo, 300, probe tube, 400, collection sample bottle,
500, display device, 600, separator, 700, sampling valve, 800, scavenging conduit, 900, blow down valve, 1000, air valve, 1100, pressure
Power table, 1200, into prostitute, 1300, wear strip, 1400, tube cell.
Specific embodiment
It is below in conjunction with attached drawing and specifically real for the purpose of this utility model, technical solution and advantage is more clearly understood
Mode is applied, the utility model is described in further detail.It should be understood that the specific embodiments described herein
Only to explain the utility model, the protection scope of the utility model is not limited.
It should be noted that when element is referred to as " being fixedly arranged on ", " being set to " or " install in " another element, it can be with
Directly on the other element or there may also be elements placed in the middle.When an element is considered as " connection " another yuan
Part, it can be directly to another element or may be simultaneously present centering elements；One element and another element
The concrete mode being fixedly connected can be achieved by the prior art, and details are not described herein, it is preferred to use the fixation side of threaded connection
Formula.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein packet
Include any and all combinations of one or more related listed items.
" first " described in the utility model, " second " do not represent specific quantity and sequence, are only used for title
It distinguishes.
As shown in Fig.1 and Fig.2, the coal fines sampling apparatus of the embodiment shown for the application, comprising: sampling seat 100 is used
In on the tube cell for being attached to coal pulverizer, specific in the present embodiment, sampling seat 100 is rectangular cubic shell, using stainless steel etc.
Metal material production.It can be removably mounted on the outer tube wall of tube cell by the fixed form of welding or screw etc., such as
It is lifted when this sampling operation without manpower, an operator can complete subsequent sampling operation.
The sampling seat 100 includes powder inlet pipe road 110 and rotatable lever 120；It is opened up on the tube wall of tube cell 1400
There is rectangle slot, in order to the inserting of probe tube 300.Specifically, the lower edge of the rectangle slot is apart from ground about 1000
~1200mm, upper edge is apart from boiler platform about 1000~1200mm, and rectangle slot is by opening up up to lower longitudinal direction, specifically
Having a size of 432 × 40 (long × wide).In this way, making the adjustable installation site of probe tube 300, sampling quality is promoted.
In addition, sampling 100 right side of seat is also equipped with gas-tight silo 200, the gas-tight silo 200 is set to the sampling seat
On 100, for being located at preset sampling hole on the tube cell 1400.Optionally, gas-tight silo 200 is semi-enclosed box body,
Open end so can guarantee good bonding strength and sealing performance, prevent by being fixedly welded on above the sampling hole of tube cell
Leakage of pulverized coal when sampling, while an independent space can also be provided for probe tube 300, it is that probe tube 300 is kept away when not working
Breeze airflow is opened, avoids being worn.
Please continue to refer to Fig. 1, the coal fines sampling apparatus further includes probe tube 300, which is hollow circle
Pipe, the probe tube 300 are connected one end in the powder inlet pipe road and are drivingly connected with the lever 120, and probe tube 300 can
To be directly to fix with lever 120 or connect by shaft.It, being capable of synchronous drive sampling when rotating lever 120
Pipe 300 rotates.The probe tube 300 is used to be inserted into the tube cell through the sampling hole, and the probe tube 300 opens up
There is powder entering hole, enables the powder entering hole opposite with pulverized coal flow by the probe tube 300 rotation；And
Collect sample bottle 400, the other end connection of the collection sample bottle 400 and the powder inlet pipe road.
Above-mentioned coal fines sampling apparatus is used to be sampled the coal dust of supply boiler combustion, in order to carry out to coal dust quality
Analysis.It is fixed on the tube cell outer wall of coal pulverizer in use, seat 100 will be sampled first, later by probe tube 300 by being preset in
Inside sampling hole insertion tube cell on tube cell tube wall, and then rotation process handle 120, rotates the powder entering hole on probe tube 300
The extremely position opposite with the flow direction of pulverized coal flow, in this way, coal dust can automatically flow into probe tube 300 by powder entering hole, and
It is finally flowed into collection sample bottle 400 by probe tube 300, to complete the sampling operation of coal dust.In this way, compared to traditional sampling
Equipment conducive to using manpower and material resources sparingly, while passing through gas-tight silo using not only reducing to the technical ability of operator and quantitative requirement
200 install and use, can also effectively prevent coal dust to leak, it is ensured that the accuracy of coal dust sampling avoids causing environment
Pollution, conducive to the adjustment of later period coal pulverizer fineness of pulverized coal and the adjustment of powder manufacturing apparatus coal-air ratio and safe operation of the boiler.
It should be understood that take powder efficiency to improve, the quantity of powder entering hole can be it is two or more, and along probe tube
Same linear interval setting on 300 tube wall, it is ensured that can be just opposite with pulverized coal flow in all powder entering hole same times, by coal
The mobilization dynamic of powder stream itself enters in collection sample bottle 400.
Further, coal fines sampling apparatus further includes in megaphone-shaped into prostitute 1200, described into the small of prostitute 1200
End is connected with the powder entering hole, and the big end into prostitute 1200 is for opposite with pulverized coal flow.By the arrangement into prostitute 1200,
So that coal dust is easier to enter in powder entering hole from the big one end of opening size, raising takes powder efficiency.
And at the end of take powder operation, it needs to rotate probe tube 300 by lever 120, makes powder entering hole and pulverized coal flow
Flow direction is staggered, that is, prevents coal dust from further flowing into device, causes measurement powder.At this point, probe tube 300 is in a period of time
It is interior to be subjected to washing away for pulverized coal flow and wear.It is worn in order to which probe tube 300 is alleviated or avoided and influences service life,
As shown in Fig. 2, coal fines sampling apparatus further includes wear strip 1300 in further carrying out example, the wear strip 1300 is arranged
It circumferentially misplaces arrangement on the probe tube 300 and with the powder entering hole.Probe tube 300 after rotating, wear strip
1300 it is opposite with pulverized coal flow thus can play blocking protective action, avoid the pulverized coal flow in tube cell from directly washing away outside probe tube 300
Wall causes to damage.
It should be understood that the good material production of any one wear-resisting property in the prior art can be used in wear strip 1300, and
Its shape can also need to make according to protection adaptability deformation, and details are not described herein.
In order to guarantee the controllable precise of coal dust quantity of sampling quantity, thus in an alternative embodiment, coal fines sampling apparatus is also wrapped
Display device 500 and coal power flowmeter are included, the coal power flowmeter is set in the powder inlet pipe road, the display device 500
It is set on the sampling seat 100 and is electrically connected with the coal power flowmeter.Coal power flowmeter can real-time monitoring inflow take
The coal dust quantity of sample, and show over the display, staff can intuitively know the coal dust amount of acquirement, when access amount with
When required to be checked flux matched, rotation lever 120, which makes powder entering hole and pulverized coal flow be staggered, can stop taking powder, it is ensured that the essence of sampling
Standard operates convenient reliable.
Please continue to refer to Fig. 1, alternatively, in order to further enhance the controllability of device, in another alternative embodiment, coal
Powder sampler further includes sampling valve 700, and the sampling valve 700 is installed on the sampling seat 100 and is connected to described into powder
In pipeline.Through-hole operates sampling valve 700, can the aperture of flexible application valve body control pulverized coal flow size, or control sampling
The on-off of pipe 300 operates more convenient, efficient.
Please continue to refer to Fig. 1, in addition, coal fines sampling apparatus further includes separator 600, the separator 600 is connected to institute
It states between the end in powder inlet pipe road and the collection sample bottle 400.The separator 600 is used to carry out solid gas to the coal dust for entering sampling bottle
Separation, can be improved the coal dust purity of acquisition.Its separation process specifically: coal dust is thrown to 600 inner wall of separator by swirling eddy
On, it is fallen on followed by self gravitation effect in collection sample bottle 400；And gas then from top to bottom moves to bottom along wall,
Top is risen to along centre again, is discharged finally by bottleneck from exhaust outlet.
Since there are the factors such as steam or pulverized coal particle is larger in environment, after long-time service, it is solidifying to will lead to coal dust accumulation
Knot results in blockage in duct wall, the sustainable reliable use of extreme influence device, thus just needs periodically to carry out device clear
Except operation.In consideration of it, in an alternative embodiment, coal fines sampling apparatus further includes scavenging conduit 800, described please continue to refer to Fig. 1
Scavenging conduit 800 is set on the sampling seat 100, and one end of the scavenging conduit 800 and the probe tube 300 are connected, described
The other end of scavenging conduit 800 is used to connect with compressed gas source.Before each use of device or after use, by accessing high pressure
Air can carry out reverse blow to device inside, coal dust in probe tube 300 is thus prevented to block.Under normal conditions, one
As carry out purging 1-3 minutes, purge time can be appropriately extended in special circumstances.
Please continue to refer to Fig. 1, further, coal fines sampling apparatus further includes blow down valve 900 and air valve 1000, described to blow
Valve 900 is swept to be installed on the sampling seat 100 and be connected in the scavenging conduit 800.The air valve 1000 is connected to described
Upstream in scavenging conduit 800 and positioned at the blow down valve 900.By so arranging, following two o'clock effect at least can achieve:
One is improving elimination effect by blow down valve 900 and air valve 1000 come the charge flow rate of flexible modulation compressed air；Secondly
Then it is to be formed at gas outlet by opening sampling valve 700, blow down valve 900 and air valve 1000 by compressed air
Negative pressure, and then pass through the solid gas separating effect of suction force power-assisted separator 600, and the coal dust in pulverized coal channel is made to be easier to sample
Hole enters inside device, is conducive to promote sampling effect and efficiency.
In addition, coal fines sampling apparatus further includes pressure gauge 1100 please continue to refer to Fig. 1, the pressure gauge 1100 is connected to
In the scavenging conduit 800 and it is set between the air valve 1000 and the blow down valve 900.It thus can be to device inside
Pressure be measured in real time, it is ensured that it is safe and reliable.
To sum up, in actual use, can be operated as follows: 1. open air valve 1000, observe pressure gauge 1100,
Pressure is adjusted to 0.3~0.6Mpa；
2. successively opening blow down valve 900 again to be rotated by 90 ° counterclockwise with sampling valve 700 and by external lever 120, make to sample
Coal dust flow direction, i.e. sampling in head face pulverized coal channel.
3. withdrawing external lever 120 after the sample size in collection sample bottle 400 meets sampling amount.Then it successively closes
Blow down valve 900, air valve 1000 and sampling valve 700.(sample time is no less than: 150s/ times)
4. removing collection sample bottle 400, sample collected is poured out, is then installed collection sample bottle 400, and confirm collection sample bottle
400 mouthfuls intact with 600 mouthfuls of sealings of separator.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of coal fines sampling apparatus characterized by comprising
Seat is sampled, for being attached to the tube cell of coal pulverizer, and the sampling seat includes powder inlet pipe road and rotatable lever；
Gas-tight silo, the gas-tight silo are set on the sampling seat, for being located at preset sampling hole on the tube cell；
Probe tube, the probe tube are connected one end in the powder inlet pipe road and are drivingly connected with the lever, the sampling
Pipe through the sampling hole for being inserted into the tube cell, and the probe tube offers powder entering hole, passes through the probe tube
Rotation enables the powder entering hole opposite with pulverized coal flow；And
Collect sample bottle, the other end connection of the collection sample bottle and the powder inlet pipe road.
2. coal fines sampling apparatus according to claim 1, which is characterized in that it further include display device and coal power flowmeter,
The coal power flowmeter is set in the powder inlet pipe road, the display device be set on the sampling seat and with the coal dust
Flowmeter is electrically connected.
3. coal fines sampling apparatus according to claim 1, which is characterized in that it further include separator, the separator connection
Between the end and the collection sample bottle in the powder inlet pipe road.
4. coal fines sampling apparatus according to claim 1, which is characterized in that it further include sampling valve, the sampling valve installing
On the sampling seat and it is connected in the powder inlet pipe road.
5. coal fines sampling apparatus according to claim 4, which is characterized in that it further include scavenging conduit, the scavenging conduit setting
In on the sampling seat, and one end of the scavenging conduit and the probe tube are connected, and the other end of the scavenging conduit is used for and pressure
Contracting gas source is connected.
6. coal fines sampling apparatus according to claim 5, which is characterized in that it further include blow down valve, the blow down valve installing
On the sampling seat and it is connected in the scavenging conduit.
7. coal fines sampling apparatus according to claim 6, which is characterized in that it further include air valve, the air valve connection
Upstream in the scavenging conduit and positioned at the blow down valve.
8. coal fines sampling apparatus according to claim 7, which is characterized in that it further include pressure gauge, the pressure gauge connection
In the scavenging conduit and it is set between the air valve and the blow down valve.
9. coal fines sampling apparatus according to claim 1, which is characterized in that further include in megaphone-shaped into prostitute, institute
It states and is connected into the small end of prostitute and the powder entering hole, the big end into prostitute is for opposite with pulverized coal flow.
10. coal fines sampling apparatus according to claim 1, which is characterized in that it further include wear strip, the wear strip setting
It circumferentially misplaces arrangement on the probe tube and with the powder entering hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821563703.5U CN209069663U (en) | 2018-09-25 | 2018-09-25 | Coal fines sampling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821563703.5U CN209069663U (en) | 2018-09-25 | 2018-09-25 | Coal fines sampling apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN209069663U true CN209069663U (en) | 2019-07-05 |
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ID=67093191
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| CN201821563703.5U Active CN209069663U (en) | 2018-09-25 | 2018-09-25 | Coal fines sampling apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485074A (en) * | 2020-11-23 | 2021-03-12 | 西安热工研究院有限公司 | Back-flushing anti-blocking multipoint constant-speed powder sampling device applied to horizontal pipeline |
-
2018
- 2018-09-25 CN CN201821563703.5U patent/CN209069663U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485074A (en) * | 2020-11-23 | 2021-03-12 | 西安热工研究院有限公司 | Back-flushing anti-blocking multipoint constant-speed powder sampling device applied to horizontal pipeline |
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