CN203927199U - A kind of Novel pneumatic ash conveying pipe blocking-proof elbow - Google Patents
A kind of Novel pneumatic ash conveying pipe blocking-proof elbow Download PDFInfo
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- CN203927199U CN203927199U CN201420186430.2U CN201420186430U CN203927199U CN 203927199 U CN203927199 U CN 203927199U CN 201420186430 U CN201420186430 U CN 201420186430U CN 203927199 U CN203927199 U CN 203927199U
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- straight tube
- ash
- conveying pipe
- elbow
- blocking
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Abstract
The utility model relates to a kind of Novel pneumatic ash conveying pipe blocking-proof elbow, is applied to thermal power plant pneumatic ash transmitting system, belongs to material transfer equipment technical field.This Novel pneumatic ash conveying pipe blocking-proof elbow, technological scheme is: comprise elbow body, the auxiliary anti-blocking long straight tube of ash disposal, long straight tube end embeds the rectangle short straight tube of elbow body, and short straight tube end openings place is welded with two and becomes the rectangular porous plate of V-type layout and be welded in long straight tube top against the solid sphere ash retention equipment of airflow direction straight tube direction pipeline inner wall.In described elbow, be lined with wear-resistant ceramic layer, described short straight tube outside is welded with hard alloy abrasion-resistant layer.During plugging, partial high pressure air-flow can produce disturbance and dredging to stopping up dry ash by the auxiliary anti-blocking pipeline of ash disposal, thereby eliminates plugging phenomenon.The utility model can effectively be removed the stifled ash of pipe bent position, has improved the working efficiency of ash-transmission system.The amount of labour and the maintenance cost of artificial treatment plugging have been reduced, energy-conserving and environment-protective simultaneously.
Description
Technical field
The utility model relates to a kind of blocking-proof elbow, is applied to thermal power plant pneumatic ash transmitting system, belongs to material transfer equipment technical field.
Background technique
Pneumatic ash transmitting system provides power source by wind conveyer, before having the air driven coal ash of certain speed, comes in to realize the conveying to coal ash.Thermal power plant pneumatic ash transmitting system pipeline comprises straight tube direction pipeline and elbow, and the effect of elbow is to realize turning to of pipeline.The clogging phenomenon of pneumatic ash transmitting system is thermal power plant technical barrier anxious to be resolved always, and the obstruction at channel bend place is more common.The frequent jams of elbow, affects the normal operation of pipe-line system, needs artificial Pipe Cutting to carry out dredging work while seriously stopping up, and has not only increased workman's the amount of labour but also has restricted normal production procedure, has increased entreprise cost.
Wind ash mixture from the inlet streams of elbow to the process of outlet, owing to being stressed, performance variation and the impact of the various complexity such as speed, viscous force, centrifugal force and pressure potential, form dead gas area and low velocity zone in a big way, the straight tube place that makes coal ash tend to be deposited near elbow causes stifled ash.
Model utility content
Actual according to the production that above-mentioned thermal power plant ash conveying pipe elbow is stifled grey, the problem that the utility model is intended to solve is: a kind of auxiliary ash disposal anti-block device of automatically processing the stifled ash in ash conveying pipe elbow without external gas source is provided.
Auxiliary ash disposal anti-block device described in the utility model, comprises that rectangle short straight tube, the short straight tube end openings place of elbow body, the auxiliary anti-blocking long straight tube of ash disposal, long straight tube end embedding elbow body is welded with the rectangular porous plate of two one-tenth V-types layouts and is welded in long straight tube top against the solid sphere ash retention equipment of the defeated grey straight tube direction pipeline inner wall of airflow direction master.
Described auxiliary ash disposal anti-block device straight tube inwall all adopts wear resistant coating to process, and described rectangle short straight tube and solid sphere ash retention equipment skin are all welded with wearable hard alloy layer.
Described rectangular porous plate adopts dedusting Special multi-hole plate to guarantee rigidity and the abrasion resistance properties of porous slab.
The position that described auxiliary ash disposal anti-block device mounting point should make long straight tube top and end embed elbow body is all positioned at the junction of elbow body and straight tube direction pipeline, and convenient construction is installed, and weld should be carried out wear resistant coating and process.
The external diameter of the long straight tube of described auxiliary dust-removing device should be 1/5 ~ 1/4 of main ash conveying pipe straight tube direction pipeline external diameter.
The described rectangle short straight tube length of side should approach and be convenient to soldering with long straight tube external diameter, and two porous plates size should be according to short straight tube size Selection, so that soldering.
Described solid sphere ash retention equipment, welding position should be positioned the long straight tube top of auxiliary ash disposal anti-block device and the contrary airflow direction of main defeated grey straight tube direction pipeline inner wall junction, half that the distance apart from the auxiliary long straight tube of dust-removing device top against airflow direction tube wall is long straight tube external diameter.Radius of sphericity size is also half of long straight tube external diameter.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is side cutaway view of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprises elbow body 1, and elbow body 1 inwall is lined with wear-resistant ceramic; Be welded in the anti-blocking long straight tube 2 of auxiliary ash disposal and the inwall wearing layer thereof of straight tube direction pipeline and elbow body 1 junction; Be welded in rectangle short straight tube 3 and inwall wearing layer and outer wearable hard alloy layer that long straight tube 2 ends embed elbow body 1; Rectangle short straight tube 3 end openings places are welded with two rectangular porous plates 4 that become V-type to arrange, rectangular porous plate 4 has done wear-resisting property and rigidity is strengthened; Be welded in solid sphere ash retention equipment 5 and the outer wearable hard alloy layer thereof of long straight tube 2 tops against airflow direction straight tube direction pipeline inner wall.
As shown in Figure 1, rectangle short straight tube 3 comprises short straight tube itself and is welded on its inner perforated plate construction that becomes V-type to arrange near end openings place.
As shown in Figure 1, rectangular porous plate 4 is for the designed porous structure of uniform discharge wind ash mixture and done the reinforcement of corresponding wear-resisting property and rigidity.
As shown in Figure 1, solid sphere ash retention equipment comprises that the body material that is welded in main ash handing pipeline inwall is welded on the outer field wearable hard alloy layer of body material with inlaying.
In process of pneumatic transmission, when material arrives channel bend place, owing to being subject to the effect of centrifugal force, there is change in the moving direction of material.Material is a complex process of repeatedly colliding reach by the process of elbow, and in this process, a large amount of materials contact with tube wall surface and form fretting wear.If material for a long time with higher velocity shock tube wall will be on tube wall the tiny groove mark of cutting place a lot of.Along with constantly having new groove mark, the growth of operating time occur causing channel bend place to produce heavy wear.The wearing and tearing feature that the utility model is carried for strength has been taked wear resistant coating and hard alloy layer wear-resisting measure to elbow.
While there is stifled ash in main ash conveying pipe elbow in the utility model, due to ash group's stopping the pipe negative pressure air-flow being provided by Blower for sucking or supplying, in ash group, contrary airflow direction side will produce instantaneous high pressure air-flow, and instantaneous high pressure air-flow blows out from V structure porous slab through the auxiliary anti-blocking long straight tube 2 of ash disposal, rectangle short straight tube 3.Due to the design of V-structure and the effect of porous slab, the instantaneous tiny high pressure draught that becomes multiply different direction of high pressure draught, these tiny high pressure draughts have very strong agitation can form gasification to the stifled ash in elbow, and then the effect of decomposing dredging is played in stop up ash group.
Claims (9)
1. a Novel pneumatic ash conveying pipe blocking-proof elbow, it is characterized in that, comprise elbow body, the auxiliary anti-blocking long straight tube of ash disposal, long straight tube end embeds the rectangle short straight tube of elbow body, and short straight tube end openings place is welded with two and becomes the rectangular porous plate of V-type layout and be welded in long straight tube top against the solid sphere ash retention equipment of the defeated grey straight tube direction pipeline inner wall of airflow direction master.
2. according to a kind of Novel pneumatic ash conveying pipe blocking-proof elbow described in claims 1, it is characterized in that, described elbow inner body wall is lined with wear-resistant ceramic.
3. according to a kind of Novel pneumatic ash conveying pipe blocking-proof elbow described in claims 1, it is characterized in that, the anti-blocking long straight tube of described auxiliary ash disposal, rectangle short straight tube inwall is all made wear resistant coating and is processed.
4. according to a kind of Novel pneumatic ash conveying pipe blocking-proof elbow described in claims 1, it is characterized in that, the skin of described rectangle short straight tube and solid sphere ash retention equipment is all inlayed and is welded with wearable hard alloy.
5. according to a kind of Novel pneumatic ash conveying pipe blocking-proof elbow described in claims 1 or 3, it is characterized in that, the anti-blocking long straight tube of described auxiliary ash disposal, mounting point should be chosen in the junction of elbow body and main ash conveying pipe straight tube direction pipeline.
6. according to a kind of Novel pneumatic ash conveying pipe blocking-proof elbow described in claims 1 or 4, it is characterized in that, the described short straight tube length of side should approach and be convenient to soldering with long straight tube external diameter.
7. according to a kind of Novel pneumatic ash conveying pipe blocking-proof elbow described in claims 1 or 4, it is characterized in that, described solid sphere ash retention equipment welding position should be decided to be half that contrary airflow direction in the long straight tube top of auxiliary ash disposal anti-block device and the junction of the main defeated grey straight tube direction pipeline inner wall distance apart from the auxiliary long straight tube of dust-removing device top against airflow direction tube wall is long straight tube caliber, and radius of sphericity size is also half of long straight tube caliber.
8. according to a kind of Novel pneumatic ash conveying pipe blocking-proof elbow described in claims 1 or 3, it is characterized in that, the caliber of the anti-blocking long straight tube of described auxiliary ash disposal should be 1/5 ~ 1/4 of main ash conveying pipe straight tube direction pipeline caliber.
9. according to a kind of Novel pneumatic ash conveying pipe blocking-proof elbow described in claims 1, it is characterized in that, described two porous plates becomes V-type to be welded on one, the porous slab that becomes V-type body is welded in to the terminal position of close rectangle straight tube in rectangle short straight tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420186430.2U CN203927199U (en) | 2014-04-17 | 2014-04-17 | A kind of Novel pneumatic ash conveying pipe blocking-proof elbow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420186430.2U CN203927199U (en) | 2014-04-17 | 2014-04-17 | A kind of Novel pneumatic ash conveying pipe blocking-proof elbow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203927199U true CN203927199U (en) | 2014-11-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420186430.2U Expired - Fee Related CN203927199U (en) | 2014-04-17 | 2014-04-17 | A kind of Novel pneumatic ash conveying pipe blocking-proof elbow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203927199U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140718A (en) * | 2020-02-27 | 2020-05-12 | 山东国舜建设集团有限公司 | Pneumatic soot blowing wear-resistant elbow |
| CN113307037A (en) * | 2021-04-17 | 2021-08-27 | 华北水利水电大学 | Dilute phase pneumatic conveying cyclone antifriction elbow |
-
2014
- 2014-04-17 CN CN201420186430.2U patent/CN203927199U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140718A (en) * | 2020-02-27 | 2020-05-12 | 山东国舜建设集团有限公司 | Pneumatic soot blowing wear-resistant elbow |
| CN113307037A (en) * | 2021-04-17 | 2021-08-27 | 华北水利水电大学 | Dilute phase pneumatic conveying cyclone antifriction elbow |
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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: 20141105 Termination date: 20150417 |
|
| EXPY | Termination of patent right or utility model |