CN201122136Y - Negative pressure section breeze sampling device - Google Patents
Negative pressure section breeze sampling device Download PDFInfo
- Publication number
- CN201122136Y CN201122136Y CNU2007201442832U CN200720144283U CN201122136Y CN 201122136 Y CN201122136 Y CN 201122136Y CN U2007201442832 U CNU2007201442832 U CN U2007201442832U CN 200720144283 U CN200720144283 U CN 200720144283U CN 201122136 Y CN201122136 Y CN 201122136Y
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- CN
- China
- Prior art keywords
- coal
- intake groove
- sampling device
- pulverizing system
- coal dust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a sampling establishment of a raw coal pulverizing system, which is applicable to a sampling device at a subpressure region of a blast furnace coal injecting and pulverizing system in an iron mill or a raw coal pulverizing system in an electric power plant, and mainly solves the technical problem that the original sampling device has complex structure and coal dust leakage. The technical proposal is as follows: the sampling device applicable to the subpressure region of the raw coal pulverizing system is provided with a coal intake groove at a coal falling pipe of a coal dust sampling device at the subpressure, the coal intake groove passes through the wall of the coal falling pipe to extend to the center of the coal falling pipe, the coal intake groove with the tail part open inclines downwards, the coal intake groove is additionally provided with a coal intake groove sleeve at the outer part of the wall of the coal falling pipe, the tail part of the coal intake groove is provided with an end cover which is connected with the coal intake groove sleeve by a screw thread, a gland bush is arranged between the end cover and the coal intake groove sleeve, a coal dust tank is arranged below the coal intake groove sleeve, a coal intake ball valve is arranged between the coal intake groove sleeve and the coal dust tank which are connected through a connecting short pipe, the bottom of the coal dust tank is connected with a coal discharging ball valve through the connecting short pipe, and the upper part of the coal dust tank is connected with an equalizing valve through the connecting short pipe. The sampling device is mainly used for the coal dust sampling of the subpressure region of the blast furnace coal injecting and pulverizing system in the iron mill or the raw coal pulverizing system in the electric power plant.
Description
Technical field:
The utility model relates to the sampling facility of raw coal pulverized coal preparation system, is suitable for the sampler of iron-smelter coal injection and pulverization of blast furnace system or power plant's raw coal pulverized coal preparation system negative pressuren zone.
Background technology:
To check after the raw coal powder process whether coal dust is qualified, the detection of need taking a sample, common sampler is installed in zone of positive pressure.Can find that the coal fines sampling apparatus kind that is installed in zone of positive pressure is more after looking into newly, but all be unable to do without the equipment of separation vessel, auger, motor or cylinder and so on usually, complex structure, manufacturing cost height, and need more maintaining at ordinary times.Existing easy zone of positive pressure coal fines sampling apparatus is illustrated in fig. 1 shown below, and gets coal slot casing 3 and welds together with pulverized coal preparation system coal spout 1, gets coal groove 2 in sleeve pipe 3 stretches into coal spout 1, gets coal groove 2 and is sealed by sealing gasket with end cap 4 places.Though simplified its structure, but, always can snap in coal dust and cause seal failure, the coal dust of pulverized coal preparation system to leak in the atmosphere from this at the sealing gasket place because of it is in zone of positive pressure, the one side contaminated environment, easy spontaneous combustion brings potential safety hazard in the air because of coal dust is exposed to again on the other hand.
The utility model content:
The purpose of this utility model provides a kind of negative pressuren zone coal fines sampling apparatus, mainly solves the technical matters of former sampler complex structure and leakage of pulverized coal.Its technical scheme is: a kind of sampler that is applicable to raw coal pulverized coal preparation system negative pressuren zone, get the coal groove what negative pressuren zone coal fines sampling apparatus coal spout was provided with downward-sloping afterbody opening, getting the coal groove passes the coal breakage tube wall and stretches to the coal spout center, get the coal groove the coal breakage tube wall outside divide to install additional get the coal slot casing, get the coal slot tail end cap is set, end cap with get the coal slot casing by being threaded, end cap and get between the coal slot casing sealing gasket is set, below getting the coal slot casing, coal dust pot is set, get to be provided with between coal slot casing and the coal dust pot to get the coal briquette valve and pass through to connect short tube and connect, be connected with and put the coal briquette valve by connecting short tube in coal dust pot bottom, be connected with equalizing valve by connecting short tube on coal dust pot top.
The beneficial effects of the utility model are by the control of getting the coal briquette valve, putting coal briquette valve and equalizing valve, realize coal dust pot and all pressures of pulverized coal preparation system coal spout or all pressures of coal dust pot and atmosphere, reach the purpose of getting pulverized coal sample.Get the coal groove and maintain static at ordinary times, by the sealing gasket sealing, atmosphere can not blow back into pulverized coal preparation system when guaranteeing ordinary production between itself and the sleeve pipe end cap.In addition, because this device is installed in the negative pressuren zone of pulverized coal preparation system, coal dust can not leak, and has solved problem of environmental pollution and the mixed coal powder that leaks is exposed to the potential safety hazard that spontaneous combustion brings in the air for a long time.This device is got the coal groove and is inserted in the pulverized coal preparation system coal spout, can not influence the whereabouts of coal dust during normal powder process is produced.End cap and sleeve pipe are easy to dismounting by being threaded, and drop getting on the coal groove if any foreign matter during the coal collector maintenance, it can be extracted.Three ball valves be connected short tube all by being threaded, be easy to after the damage change.Easy to operate when this device is got pulverized coal sample, and simple structure, being easy to processing, used unit is bought on market easily, and is with low cost.
Description of drawings:
Fig. 1 is existing zone of positive pressure coal fines sampling apparatus structural representation
Fig. 2 is the utility model structure diagram
Among the figure: 1-coal spout, 2-are got the coal groove, and 3-gets the coal slot casing, the 4-end cap, and 5-connects short tube A, and 6-gets the coal briquette valve, and 7-connects short tube B, the 8-equalizing valve, 9-connects short tube C, the 10-coal dust pot, 11-connects short tube D, and 12-is put the coal briquette valve.
Embodiment:
With reference to Fig. 2, a kind of sampler that is applicable to raw coal pulverized coal preparation system negative pressuren zone is by getting coal groove 2, get coal briquette valve 6, equalizing valve 8, coal dust pot 10, putting parts such as coal briquette valve 12 and form.Get coal slot casing 3 and weld together, get coal groove 2 in sleeve pipe 3 stretches into coal spout 1, connect short tube A5 and sleeve pipe 3 and weld together, connect short tube B7 and coal dust pot and weld together, get coal groove 2 lower opening with pulverized coal preparation system coal spout 1.Equalizing valve 8 is connected with coal dust pot 10 by connecting short tube C9, putting coal briquette valve 12 is connected with coal dust pot 10 by connecting short tube D11, during sampling, open equalizing valve 8, put coal briquette valve 12, get coal briquette valve 6, negative pressure by system itself is taken coal dust remaining in the sampler away, close equalizing valve 8, put coal briquette valve 12, coal dust is through getting coal groove 2, connect short tube A5, get coal briquette valve 6, connect short tube B7 and flow into coal dust pot 10, after the coal dust amount reaches requirement in the coal dust pot 10, close and get coal briquette valve 6, open equalizing valve 8, put coal briquette valve 12, coal dust flows into and gets the coal sample bucket, gets pulverized coal sample and finishes.Get coal groove 2 and sealed by sealing gasket with end cap 4 places, address the leakage concern, this device is installed in the negative pressuren zone of pulverized coal preparation system simultaneously, coal dust can both not protected environment to external leakage, has solved mixed coal powder long term exposure spontaneous combustion and safety problem of causing in air again.Adopt the utility model to take out pulverized coal sample quickly and easily, simple to operate, and simple for structure, requirement on machining accuracy is low.
Claims (2)
1, a kind of sampler of negative pressuren zone, what coal spout was provided with downward-sloping afterbody opening gets the coal groove, getting the coal groove passes the coal breakage tube wall and stretches to the coal spout center, get the coal groove the coal breakage tube wall outside divide to install additional get the coal slot casing, get the coal slot tail end cap is set, end cap with get the coal slot casing by being threaded, it is characterized in that: below getting the coal slot casing, coal dust pot is set, get to be provided with between coal slot casing and the coal dust pot to get the coal briquette valve and pass through to connect short tube and connect, be connected with and put the coal briquette valve by connecting short tube in coal dust pot bottom, be connected with equalizing valve by connecting short tube on coal dust pot top.
2, the sampler of a kind of negative pressuren zone according to claim 1 is characterized in that: end cap and get between the coal slot casing sealing gasket is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201442832U CN201122136Y (en) | 2007-11-01 | 2007-11-01 | Negative pressure section breeze sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201442832U CN201122136Y (en) | 2007-11-01 | 2007-11-01 | Negative pressure section breeze sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201122136Y true CN201122136Y (en) | 2008-09-24 |
Family
ID=40009369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201442832U Expired - Fee Related CN201122136Y (en) | 2007-11-01 | 2007-11-01 | Negative pressure section breeze sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201122136Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735495A (en) * | 2012-07-19 | 2012-10-17 | 哈尔滨工业大学 | Louver-type moon surface layer sample collecting and packaging device |
| CN102735493A (en) * | 2012-07-19 | 2012-10-17 | 哈尔滨工业大学 | Vibratory compaction type moon-surface sample collecting and packaging device |
| CN102735494A (en) * | 2012-07-19 | 2012-10-17 | 哈尔滨工业大学 | Spiral-gathering type moon-surface sample collecting and packaging device |
| CN104964842A (en) * | 2015-07-03 | 2015-10-07 | 无锡维邦工业设备成套技术有限公司 | On-line manual negative pressure sampling system |
-
2007
- 2007-11-01 CN CNU2007201442832U patent/CN201122136Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735495A (en) * | 2012-07-19 | 2012-10-17 | 哈尔滨工业大学 | Louver-type moon surface layer sample collecting and packaging device |
| CN102735493A (en) * | 2012-07-19 | 2012-10-17 | 哈尔滨工业大学 | Vibratory compaction type moon-surface sample collecting and packaging device |
| CN102735494A (en) * | 2012-07-19 | 2012-10-17 | 哈尔滨工业大学 | Spiral-gathering type moon-surface sample collecting and packaging device |
| CN102735493B (en) * | 2012-07-19 | 2014-04-30 | 哈尔滨工业大学 | Vibratory compaction type moon-surface sample collecting and packaging device |
| CN102735495B (en) * | 2012-07-19 | 2014-05-21 | 哈尔滨工业大学 | Louver-type moon surface layer sample collecting and packaging device |
| CN102735494B (en) * | 2012-07-19 | 2015-04-01 | 哈尔滨工业大学 | Spiral-gathering type moon-surface sample collecting and packaging device |
| CN104964842A (en) * | 2015-07-03 | 2015-10-07 | 无锡维邦工业设备成套技术有限公司 | On-line manual negative pressure sampling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080924 Termination date: 20161101 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |