CN204756918U - Coal slurry granulation refractory gunning equipment - Google Patents
Coal slurry granulation refractory gunning equipment Download PDFInfo
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- CN204756918U CN204756918U CN201520123347.5U CN201520123347U CN204756918U CN 204756918 U CN204756918 U CN 204756918U CN 201520123347 U CN201520123347 U CN 201520123347U CN 204756918 U CN204756918 U CN 204756918U
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- granulation
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- coal
- granulating
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Abstract
The utility model relates to a coal slurry granulation refractory gunning equipment, include the granulation pipe, enclose and establish at the granulation outside of tubes cooling jacket pipe in week, coal slurry granulation feeder is equipped with the hot -blast main, burn the room, the hot -blast main gas outlet sets swirler, the hot -blast main is worn out to granulation pipe entrance point, granulation pipe entrance point sets the sight glass, granulation pipe import side sets up the blow down valve, the intraductal U type passageway that is equipped with of cooling jacket, U type passageway water inlet sets up the cooling water governing valve. The hot -blast main sets up the periphery at granulation pipe and cooling jacket pipe, the hot -blast main gas outlet lets in the combustion chamber, the utility model discloses an intraductal surface coating polytetrafluoroethylene of granulation of granulation refractory gunning equipment, it is antiseized heat -resisting, granulation outside of tubes zhou liyong cryogenic cooling water cooling protection, the granulation pipe is difficult to be bondd, stops up, and has lengthened the life of granulation pipe, it solidifies to prevent also simultaneously that the coal slurry is heated to desiccate, causes the jam for the thick liquid device.
Description
Technical field
The utility model relates to a kind of water coal pulp fluidized suspension burner, is specifically related to a kind of water-coal-slurry granulation refractory gunning equipment.
Background technology
Water-coal-slurry is widely used in power station and Industrial Boiler and stove as a kind of high effect cleaning fuel, especially in recent years the appearance of fluidization-suspension combustion coal water slurry boiler, the revolution of COAL-WATER SLURRY TECHNOLOGY application especially.
Traditional fluidization-suspension combustion coal water slurry boiler device enters granulating device by slurry supply pump; boiler furnace is entered through granulating pipe; adopt low-temperature cold wind to carry and sweep along water-coal-slurry to drip its granulation of promotion; play the effect of cooling granulating pipe, to prevent water coal slurry in granulating pipe by heat bonding, blocking simultaneously.Statement in as disclosed in volume the 3rd phase in " coal journal " March the 33rd in 2008 " application of a water coal pulp fluidized Suspending Combustion Technique and 14MW boiler ": " for the fluidisation one suspension combustion mode of water-coal-slurry; due to burning condition superior in bed; its combustion efficiency in burner hearth can not be affected; change the requirement to water-coal-slurry feeding granularity like this, no longer need the necessary high-pressure atomizing device of spray burning.But simultaneously in order to meet the requirement of different density fluidized bed combustion, the slurry added drips and must meet certain size distribution, just the combustion characteristics of boiler can be made best.The granulation of high concentration can meet the needs of water coal pulp fluidized-Suspending Combustion Technique to slurry technology.This device is by cooling air air intake tube connector, flame-observing mirror.Water-coal-slurry pulp-inlet pipe, with sealing bolt dredging hole, purge the parts such as scavenge pipe and water-coal-slurry granulating pipe and form "; the cleaning of water (mud) coal slurry or scavenging conduit (can water receiving or compressed air) be housed on water-coal-slurry granulating pipe; dredging hole is left on the top of water-coal-slurry granulating pipe; to facilitate dredging, operationally should close.A whole set of water-coal-slurry granulating pipe is placed in cooling duct or cool wind box, to prevent the dehydration of being heated of water coal slurry from solidifying, blocks to sizing device.
Nonetheless; the existing water-coal-slurry granulation charging gear caused due to viscosity in aqueous coal slurries, impurity still keeps away in unavoidable granulating pipe the shortcoming boning, block; not only affect water-coal-slurry granulation gunite effect; increase operation maintenance workload; and because a large amount of cooling air solidifying to prevent water-coal-slurry dehydration of being heated, blocking to sizing device, making a large amount of low warm air enter combustion chamber; affect combustion efficiency, increase boiler heat loss 1 ~ 3%.
Summary of the invention
In order to overcome the above-mentioned defect of prior art; the utility model provides a kind of water-coal-slurry to be granulated refractory gunning equipment; it has water-coal-slurry easily bonding, blocking in avoid existing water-coal-slurry to whitewash granulating pipe that granulating device exists, also solves the burning of sub-cooled wind effect, increases the shortcoming of boiler heat loss.
For above-mentioned technical problem, the technical solution scheme that the utility model proposes is:
A kind of water-coal-slurry granulation refractory gunning equipment, comprise granulating pipe, be around in the cooling water pipe of granulating pipe periphery, described water-coal-slurry granulation charging gear is provided with warm-air pipe, described warm-air pipe is arranged on the periphery of granulating pipe and cooling water pipe, described warm-air pipe gas outlet passes into combustion chamber, and described warm-air pipe gas outlet arranges cyclone; Described granulating pipe entrance point passes warm-air pipe, and described granulating pipe entrance point arranges peephole, and described granulating pipe import side arranges blow down valve; Be provided with U-shaped passage in described cooling water pipe, described U-shaped passage water inlet arranges cooling sea water regulating valve.Preferred version is: described blow down valve is compressed air blow down valve or steam blowing valve.
Preferred version is: described cyclone is bladed axial swirler.
Preferred version is: described granulating pipe inner surface spraying polytetrafluoroethylene (PTFE), and/or described warm-air pipe and cyclone are heat-resisting alloy steel or heat-resisting alloy cast steel.
Preferred version is: described warm-air pipe outer end is provided with peephole.
The utility model granulation pay-off compared to existing technology, its beneficial effect is granulating pipe inner surface spraying polytetrafluoroethylene (PTFE), and antiseized heat-resisting, granulating pipe periphery utilizes sub-cooled water cooling protection, granulating pipe not easily bonds, block, and extends the service life of granulating pipe; Change high-temperature hot-air into by traditional cold wind and be granulated whitewashing, be not only conducive to burning, and can boiler heat loss be reduced, by the setting of peephole and clear Sweep valve, be easy to the inspection of granulation refractory gunning equipment, adjustment, cleaning and maintenance, use reliably safer.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In diagram, granulating pipe 1; Cooling water pipe 2; Warm-air pipe 3; Cyclone 4; Hot blast control valve 5; Compressed air blow down valve 6; Cooling sea water regulating valve 7; Peephole lid 8; Peephole 9; Combustion chamber 11; U-shaped passage water inlet 12.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated:
As shown in Figure 1: a kind of water-coal-slurry granulation refractory gunning equipment that the utility model relates to, this device comprises granulating pipe 1, be around in the cooling water pipe 2 of granulating pipe 1 periphery, granulating pipe 1 and cooling water pipe 2 periphery enclose warm-air pipe 3, the connection combustion chamber, gas outlet 11 of warm-air pipe 3, the gas outlet of warm-air pipe 3 arranges cyclone 4, cyclone 4 is bladed axial swirler, the air inlet of warm-air pipe 3 arranges hot-blast valve 5, granulating pipe 1 charging aperture one end passes warm-air pipe 3, granulating pipe 1 entrance point arranges peephole lid 8, the import side of granulating pipe 1 arranges compressed air blow down valve 6, compressed air blow down valve 6 is equipped and is communicated with compressed-air actuated compressed air interface, U-shaped passage is provided with in cooling water pipe 2, cooling water pipe 2 arranges cooling sea water regulating valve 7 at U-shaped passage water inlet 12 end.
Granulating pipe 1 inner surface spraying polytetrafluoroethylene (PTFE), water-coal-slurry can be avoided to be heated felt jam, and warm-air pipe 3 and bladed axial swirler 4 is heat-resisting alloy steel material.
Warm-air pipe 3 air inlet one end that bladed axial swirler 4 level arranged in warm-air pipe 3 gas outlet is relative, is provided with peephole 9, for observing the combustion case in combustion chamber 11.
In the utility model, the water-coal-slurry granulation refractory gunning equipment that water-coal-slurry is delivered to by stock pump, enters combustion chamber 11 through granulating pipe 1; High-temperature hot-air enters warm-air pipe 3 through hot blast control valve 5, rotates into combustion chamber 11 through bladed axial swirler 4, drips mix and participate in combustion-supporting with the granulation water-coal-slurry flowed out from granulating pipe 1; Water-coal-slurry granulation and combustion position can be observed by peephole 9, and carry out adjustment hot blast by hot blast control valve 5; Low-temperature cooling water enters cooling water pipe 7 through cooling sea water regulating valve 6, through U, and cooling protection granulating pipe; Situation in granulating pipe 1 can be observed by peephole lid 8, and available by compressed air blow down valve 9, purge granulating pipe 1 inner surface.
A kind of its device of water-coal-slurry granulation whitewashing of the present utility model, its granulating pipe hot blast adopts boiler air preheater outlet hot blast, allows hot blast temperature≤400 DEG C; Cooling water temperature adopts 10 ~ 30 DEG C.
Those skilled in the art should be realized that; the foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. a water-coal-slurry granulation refractory gunning equipment, comprises granulating pipe, is around in the cooling water pipe of granulating pipe periphery, it is characterized in that: described water-coal-slurry granulation refractory gunning equipment is also provided with warm-air pipe, and described warm-air pipe gas outlet arranges cyclone; Described granulating pipe entrance point passes warm-air pipe, and described granulating pipe entrance point arranges peephole, and described granulating pipe import side arranges blow down valve; Be provided with U-shaped passage in described cooling water pipe, described U-shaped passage water inlet arranges cooling sea water regulating valve; Warm-air pipe is arranged on the periphery of granulating pipe and cooling water pipe, and described warm-air pipe gas outlet passes into combustion chamber.
2. water-coal-slurry granulation refractory gunning equipment as claimed in claim 1, is characterized in that: described blow down valve is compressed air blow down valve or steam blowing valve.
3. water-coal-slurry granulation refractory gunning equipment as claimed in claim 1, is characterized in that: described cyclone is bladed axial swirler.
4. water-coal-slurry granulation refractory gunning equipment as claimed in claim 1, is characterized in that: described granulating pipe inner surface spraying polytetrafluoroethylene (PTFE), and/or described warm-air pipe and cyclone are heat-resisting alloy steel or heat-resisting alloy cast steel.
5. water-coal-slurry granulation refractory gunning equipment as claimed in claim 1, is characterized in that: described warm-air pipe outer end is provided with peephole.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201520123347.5U CN204756918U (en) | 2015-03-03 | 2015-03-03 | Coal slurry granulation refractory gunning equipment |
Applications Claiming Priority (1)
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CN201520123347.5U CN204756918U (en) | 2015-03-03 | 2015-03-03 | Coal slurry granulation refractory gunning equipment |
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CN204756918U true CN204756918U (en) | 2015-11-11 |
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CN201520123347.5U Expired - Fee Related CN204756918U (en) | 2015-03-03 | 2015-03-03 | Coal slurry granulation refractory gunning equipment |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104791784A (en) * | 2015-03-03 | 2015-07-22 | 杭州福鼎节能科技服务有限公司 | Coal water slurry pelletizing and gunite device |
-
2015
- 2015-03-03 CN CN201520123347.5U patent/CN204756918U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104791784A (en) * | 2015-03-03 | 2015-07-22 | 杭州福鼎节能科技服务有限公司 | Coal water slurry pelletizing and gunite device |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20210303 |