CN102980188B - Water-coal-slurry spray gun and water-coal-slurry boiler - Google Patents
Water-coal-slurry spray gun and water-coal-slurry boiler Download PDFInfo
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- CN102980188B CN102980188B CN201210554374.9A CN201210554374A CN102980188B CN 102980188 B CN102980188 B CN 102980188B CN 201210554374 A CN201210554374 A CN 201210554374A CN 102980188 B CN102980188 B CN 102980188B
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- coal
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- slurry
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Abstract
The invention provides a water-coal-slurry spray gun and a water-coal-slurry boiler. The water-coal-slurry spray gun comprises a bracket, a cone-shaped baffle, a protection sleeve, a gun barrel and a conveying pipe, wherein the back end part of the protection sleeving is in threaded connection with an adjustment pipe; the gun barrel is fixedly connected with the adjustment pipe; the front end part of the gun barrel is fixedly sleeved with a sleeve; the middle part of the sleeve is provided with a first baffle; a first through hole is formed on the first baffle; a mixing pipeline is arranged between the first baffle and the conveying pipe; a plurality of air inlets are arranged on the side wall of the mixing pipeline; the outlet of the mixing pipeline faces the first through hole; the front end part of the sleeve is provided with a trumpet-shaped outlet; the tip part of the cone-shaped baffle is inserted into the trumpet-shaped outlet; and a gap between the cone-shaped baffle and the trumpet-shaped outlet forms a discharging hole. A blocked water-coal-slurry spray gun can be conveniently cleaned, so that the reliability of the water-coal-slurry boiler is improved.
Description
Technical field
The present invention relates to boiler plant, particularly relate to a kind of water-coal-slurry spraying gun and coal water slurry boiler.
Background technology
At present, according to the energy characteristics of China, development and application clean coal technology, replace oil with coal is fundamental policies of national energy.Along with new cleaning fuel constantly occurs, the steam generator system of original burning single-fuel highlights significant limitation in some field, for current market situation, there is boiler and the hybrid boiler of a kind of novel concept, flammable pluralities of fuel.Coal water slurry boiler of the prior art adopts water-coal-slurry as fuel usually, and water-coal-slurry is injected in the body of heater of coal water slurry boiler by spray gun burns.Spray gun of the prior art generally includes support, pyramid blocks, protective casing, gun barrel and conveying pipeline; support is fixed on the leading section of protective casing; protective casing is enclosed within the outside of gun barrel; gun barrel is enclosed within the outside of conveying pipeline; gun barrel is also provided with air inlet pipe; the air inlet of air inlet pipe is positioned at protective casing outside, and pyramid blocks to be fixed on support and to be inserted in the front port place of gun barrel, is spaced apart discharging opening between pyramid blocks and gun barrel.In use, be injected in boiler through discharging opening after the gas that air inlet pipe is filled with mixes with the water-coal-slurry that conveying pipeline is carried in gun barrel and burn.But in the links such as the preparation of water-coal-slurry, transport or storage, easily there is the phenomenon producing lump in water-coal-slurry, the discharging opening of spray gun easily blocks by the lump in water-coal-slurry.And when blocking occurs spray gun, need artificial unloading's spray gun to clear up lump, in the process, the temperature in body of heater will decline rapidly, causes the reliability of coal water slurry boiler lower.
Summary of the invention
The invention provides a kind of water-coal-slurry spraying gun and coal water slurry boiler, in order to solve the defect that in prior art, the reliability of coal water slurry boiler is lower, realize the water-coal-slurry spraying gun of easy cleaning blocking, improve the reliability of coal water slurry boiler.
The invention provides a kind of water-coal-slurry spraying gun, comprise support, pyramid blocks, protective casing, gun barrel and conveying pipeline, described support is fixed on the leading section of described protective casing, described protective casing is enclosed within the outside of described gun barrel, described gun barrel is enclosed within the outside of described conveying pipeline, described gun barrel is also provided with air inlet pipe, the air inlet of described air inlet pipe is positioned at described protective casing outside, described pyramid blocks is fixing on the bracket, the rearward end of described protective casing has been threaded adjustable pipe, and described gun barrel is fixedly connected on described adjustable pipe; The leading section of described gun barrel is fixed with sleeve pipe, the middle part of described sleeve pipe is provided with the first baffle plate, described first baffle plate offers the first through hole, mixing duct is provided with between described first baffle plate and described conveying pipeline, the sidewall of described mixing duct is provided with multiple air admission hole, and the outlet of described mixing duct is towards described first through hole; The leading section of described sleeve pipe is provided with flaring exit, and the point of described pyramid blocks is inserted in described flaring exit, the gap-forming discharging opening between described pyramid blocks and described flaring exit.
Water-coal-slurry spraying gun provided by the invention, by the adjustable pipe that is threaded on protective casing, gun barrel is fixedly connected on adjustable pipe, when discharging opening between pyramid blocks and described flaring exit is blocked by the lump in water-coal-slurry, move to drive gun barrel by rotating adjustable pipe, increase the distance between pyramid blocks and described flaring exit, thus the lump being stuck in discharge outlet is conveniently discharged, water-coal-slurry spraying gun is dismantled without the need to workman, and do not affect coal water slurry boiler normally to run, realize the water-coal-slurry spraying gun of easy cleaning blocking, improve the reliability of coal water slurry boiler, further, because the distance between pyramid blocks and described flaring exit is adjustable, the size realizing discharging opening is adjustable, thus realizes the convenient load regulating water-coal-slurry spraying gun, water-coal-slurry spraying gun is met and uses under different operating mode.In addition, the leading section of conveying pipeline is provided with mixing duct, the portion gas of air inlet pipe input enters into mixing duct and water-coal-slurry by air admission hole to carry out first time and mixes, the residual gas that inputs with air inlet pipe in the side of the first baffle plate of water-coal-slurry exported from mixing duct carries out second time and mixes, effectively guarantee that water-coal-slurry and air mix uniformly, guarantee that water-coal-slurry can be burnt more fully.
Water-coal-slurry spraying gun as above, is provided with second baffle between described flaring exit and described first baffle plate, described second baffle is fixed with impact block, and described second baffle offers multiple second through hole around described impact block.
Water-coal-slurry spraying gun as above, the sidewall of described pyramid blocks offers many first grooves, and the madial wall of described flaring exit offers many second grooves corresponding with described first groove.
Water-coal-slurry spraying gun as above, the outer ring of described adjustable pipe is provided with handwheel.
Water-coal-slurry spraying gun as above, the leading section of described mixing duct is provided with back-up ring, and described back-up ring is provided with multiple passage.
The invention provides a kind of coal water slurry boiler, comprise water-coal-slurry spraying gun as above.
Coal water slurry boiler provided by the invention, by the adjustable pipe that is threaded on protective casing, gun barrel is fixedly connected on adjustable pipe, when discharging opening between pyramid blocks and described flaring exit is blocked by the lump in water-coal-slurry, move to drive gun barrel by rotating adjustable pipe, increase the distance between pyramid blocks and described flaring exit, thus the lump being stuck in discharge outlet is conveniently discharged, water-coal-slurry spraying gun is dismantled without the need to workman, and do not affect coal water slurry boiler normally to run, realize the water-coal-slurry spraying gun of easy cleaning blocking, improve the reliability of coal water slurry boiler, further, because the distance between pyramid blocks and described flaring exit is adjustable, the size realizing discharging opening is adjustable, thus realizes the convenient load regulating water-coal-slurry spraying gun, water-coal-slurry spraying gun is met and uses under different operating mode.In addition, the leading section of conveying pipeline is provided with mixing duct, the portion gas of air inlet pipe input enters into mixing duct and water-coal-slurry by air admission hole to carry out first time and mixes, the residual gas that inputs with air inlet pipe in the side of the first baffle plate of water-coal-slurry exported from mixing duct carries out second time and mixes, effectively guarantee that water-coal-slurry and air mix uniformly, guarantee that water-coal-slurry can be burnt more fully.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of water-coal-slurry spraying gun embodiment of the present invention;
Fig. 2 is the structural representation of pyramid blocks in water-coal-slurry spraying gun embodiment of the present invention;
Fig. 3 be in Fig. 2 A-A to sectional view;
Fig. 4 is the structural representation of flaring exit in water-coal-slurry spraying gun embodiment of the present invention;
Fig. 5 be in Fig. 4 B-B to sectional view;
Fig. 6 is the structural representation of mixing duct in water-coal-slurry spraying gun embodiment of the present invention.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in figs 1 to 6, the present embodiment water-coal-slurry spraying gun, comprise support 1, pyramid blocks 2, protective casing 3, gun barrel 4 and conveying pipeline 5, support 1 is fixed on the leading section of protective casing 3, protective casing 3 is enclosed within the outside of gun barrel 4, gun barrel 4 is enclosed within the outside of conveying pipeline 5, gun barrel 4 is also provided with air inlet pipe 41, the air inlet 411 of air inlet pipe 41 is positioned at protective casing 3 outside, pyramid blocks 2 is fixed on support 1, the rearward end of protective casing 3 has been threaded adjustable pipe 6, and gun barrel 4 is fixedly connected on adjustable pipe 6; The leading section of gun barrel 4 is fixed with sleeve pipe 7, the middle part of sleeve pipe 7 is provided with the first baffle plate 71, first baffle plate 71 offers the first through hole 711, mixing duct 8 is provided with between first baffle plate 71 and conveying pipeline 5, the sidewall of mixing duct 8 is provided with multiple air admission hole 81, the outlet of mixing duct 8 is towards the first through hole 711; The leading section of sleeve pipe 7 is provided with flaring exit 9, and the point of pyramid blocks 2 is inserted in flaring exit 9, the gap-forming discharging opening 10 between pyramid blocks 2 and flaring exit 9.
Specifically; the rearward end of the protective casing 3 in the present embodiment water-coal-slurry spraying gun has been threaded adjustable pipe 6; adjustable pipe 6 can be realized move along the axis of protective casing 3 by rotating adjustable pipe 6; and gun barrel 4 will be followed adjustable pipe 6 and together moved; gun barrel 4 in the present embodiment can directly be fixed on adjustable pipe 6, and gun barrel 4 also can be fixed on adjustable pipe 6 by conveying pipeline 5.After occurring that discharging opening 10 is by the lump blocking in water-coal-slurry, move to drive gun barrel 4 by rotating adjustable pipe 6, distance between pyramid blocks 2 and flaring exit 9 is increased, thus enable to be stuck in lump between pyramid blocks 2 and flaring exit 9 and discharge from the discharging opening 10 after increasing, realize dismantling the present embodiment water-coal-slurry spraying gun without the need to workman, just the lump at discharging opening 10 place can be cleared up easily, and in the process of cleaning lump, without the need to coal water slurry boiler of stopping transport, guarantee that coal water slurry boiler can run continuously, improve the reliability of coal water slurry boiler, decrease the heat energy of coal water slurry boiler large losses because of blocking simultaneously.Wherein, gun barrel 4 in the present embodiment is provided with sleeve pipe 7, the water-coal-slurry exported in conveying pipeline 5 will mix in sleeve pipe 7, concrete, the water-coal-slurry that conveying pipeline 5 exports enters into mixing duct 8, the gas that air inlet pipe 41 inputs is input in sleeve pipe 7 from the gas outlet that gun barrel 4 front end surface is arranged, portion gas enters into mixing duct 8 and water-coal-slurry by air admission hole 81 to carry out first time and mixes, and the water-coal-slurry exported from mixing duct 8 mixes again with remaining gas, water-coal-slurry is through twice mixed processing, water-coal-slurry is mixed more uniformly with air, guarantee that water-coal-slurry can be burnt uniformly.In addition, because the distance between pyramid blocks 2 and flaring exit 9 can regulate as required, the Load Regulation of coal water slurry boiler can according to the outlet size regulating the present embodiment water-coal-slurry spraying gun discharging opening 10 by slurry amount of boiler, when needing to regulate large, the size exported utilizes the movable of adjustable pipe 6 to regulate, do not need blowing out, size freely, realize step-less adjustment, the present embodiment water-coal-slurry spraying gun can meet the requirement of different load, thus the present embodiment water-coal-slurry spraying gun can be enable to be applicable to different operating modes.
Further, mix more uniformly with air to enable water-coal-slurry, be provided with second baffle 72 between flaring exit 9 in the present embodiment and the first baffle plate 71, second baffle 72 be fixed with impact block 73, second baffle 72 offers multiple second through hole 721 around impact block 73.Concrete, water-coal-slurry and air mixture strike on impact block 73 after the first through hole 711 the first baffle plate 71 exports, and the mixture of water-coal-slurry and air is atomized further, and the water-coal-slurry of atomization is transported to discharging opening 10 place through the second through hole 72.Preferably, the edge of the impact block 73 in the present embodiment shelters from the edge of the second through hole 72, thus guarantees that water-coal-slurry can export through the second through hole 72 after carrying out shock atomization again.
Further, the sidewall of the pyramid blocks 2 in the present embodiment offers many first grooves 21, and the madial wall of flaring exit 9 offers many second grooves 91 corresponding with the first groove 21.Concrete, when coal water slurry boiler needs to run under low-power mode, by adjustment adjustable pipe 6, flaring exit 9 and pyramid blocks 2 are sticked together, and the first groove 21 and the second groove 91 form passage, and water-coal-slurry can only export from passage; And when coal water slurry boiler needs to run under high power mode, by adjustment adjustable pipe 6, make flaring exit 9 away from pyramid blocks 2, discharging opening 10 is increased, meanwhile, first groove 21 and the second groove 91 will lead to water-coal-slurry, guarantee that water-coal-slurry is exported by discharging opening 10 smoothly.Wherein, conveniently adjust adjustable pipe 6, the outer ring of the adjustable pipe 6 in the present embodiment is provided with handwheel 61.In addition, fully mix in order to ensure air and the water-coal-slurry exported from mixing duct 8, the leading section of mixing duct 8 is provided with back-up ring 82, back-up ring 82 is provided with multiple passage 83.Remaining air enters into by passage 83 space that first baffle plate 71 formed with back-up ring 82, guarantee water-coal-slurry fully mix with air after output from the first through hole 711 again.
The present embodiment water-coal-slurry spraying gun, by the adjustable pipe that is threaded on protective casing, gun barrel is fixedly connected on adjustable pipe, when discharging opening between pyramid blocks and flaring exit is blocked by the lump in water-coal-slurry, move to drive gun barrel by rotating adjustable pipe, increase the distance between pyramid blocks and flaring exit, thus the lump being stuck in discharge outlet is conveniently discharged, water-coal-slurry spraying gun is dismantled without the need to workman, and do not affect coal water slurry boiler normally to run, realize the water-coal-slurry spraying gun of easy cleaning blocking, improve the reliability of coal water slurry boiler, further, because the distance between pyramid blocks and flaring exit is adjustable, the size realizing discharging opening is adjustable, thus realizes the convenient load regulating water-coal-slurry spraying gun, water-coal-slurry spraying gun is met and uses under different operating mode.In addition, the leading section of conveying pipeline is provided with mixing duct, the portion gas of air inlet pipe input enters into mixing duct and water-coal-slurry by air admission hole to carry out first time and mixes, the residual gas that inputs with air inlet pipe in the side of the first baffle plate of water-coal-slurry exported from mixing duct carries out second time and mixes, effectively guarantee that water-coal-slurry and air mix uniformly, guarantee that water-coal-slurry can be burnt more fully.
The present invention also provides a kind of coal water slurry boiler, comprises the water-coal-slurry spraying gun in water-coal-slurry spraying gun embodiment of the present invention.
The present embodiment coal water slurry boiler, by the adjustable pipe that is threaded on protective casing, gun barrel is fixedly connected on adjustable pipe, when discharging opening between pyramid blocks and flaring exit is blocked by the lump in water-coal-slurry, move to drive gun barrel by rotating adjustable pipe, increase the distance between pyramid blocks and flaring exit, thus the lump being stuck in discharge outlet is conveniently discharged, water-coal-slurry spraying gun is dismantled without the need to workman, and do not affect coal water slurry boiler normally to run, realize the water-coal-slurry spraying gun of easy cleaning blocking, improve the reliability of coal water slurry boiler, further, because the distance between pyramid blocks and flaring exit is adjustable, the size realizing discharging opening is adjustable, thus realizes the convenient load regulating water-coal-slurry spraying gun, water-coal-slurry spraying gun is met and uses under different operating mode.In addition, the leading section of conveying pipeline is provided with mixing duct, the portion gas of air inlet pipe input enters into mixing duct and water-coal-slurry by air admission hole to carry out first time and mixes, the residual gas that inputs with air inlet pipe in the side of the first baffle plate of water-coal-slurry exported from mixing duct carries out second time and mixes, effectively guarantee that water-coal-slurry and air mix uniformly, guarantee that water-coal-slurry can be burnt more fully.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a water-coal-slurry spraying gun, comprise support, pyramid blocks, protective casing, gun barrel and conveying pipeline, described support is fixed on the leading section of described protective casing, described protective casing is enclosed within the outside of described gun barrel, described gun barrel is enclosed within the outside of described conveying pipeline, described gun barrel is also provided with air inlet pipe, the air inlet of described air inlet pipe is positioned at described protective casing outside, described pyramid blocks is fixing on the bracket, it is characterized in that, the rearward end of described protective casing has been threaded adjustable pipe, described gun barrel is fixedly connected on described adjustable pipe, move to drive described gun barrel by rotating described adjustable pipe, the leading section of described gun barrel is fixed with sleeve pipe, the middle part of described sleeve pipe is provided with the first baffle plate, described first baffle plate offers the first through hole, mixing duct is provided with between described first baffle plate and described conveying pipeline, the sidewall of described mixing duct is provided with multiple air admission hole, and the outlet of described mixing duct is towards described first through hole, the leading section of described sleeve pipe is provided with flaring exit, and the point of described pyramid blocks is inserted in described flaring exit, the gap-forming discharging opening between described pyramid blocks and described flaring exit.
2. water-coal-slurry spraying gun according to claim 1, it is characterized in that, be provided with second baffle between described flaring exit and described first baffle plate, described second baffle is fixed with impact block, described second baffle offers multiple second through hole around described impact block.
3. water-coal-slurry spraying gun according to claim 1, is characterized in that, the sidewall of described pyramid blocks offers many first grooves, and the madial wall of described flaring exit offers many second grooves corresponding with described first groove.
4. water-coal-slurry spraying gun according to claim 1, is characterized in that, the outer ring of described adjustable pipe is provided with handwheel.
5. water-coal-slurry spraying gun according to claim 1, is characterized in that, the leading section of described mixing duct is provided with back-up ring, and described back-up ring is provided with multiple passage.
6. a coal water slurry boiler, is characterized in that, comprise as arbitrary in claim 1-5 as described in water-coal-slurry spraying gun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210554374.9A CN102980188B (en) | 2012-12-19 | 2012-12-19 | Water-coal-slurry spray gun and water-coal-slurry boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210554374.9A CN102980188B (en) | 2012-12-19 | 2012-12-19 | Water-coal-slurry spray gun and water-coal-slurry boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102980188A CN102980188A (en) | 2013-03-20 |
| CN102980188B true CN102980188B (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210554374.9A Expired - Fee Related CN102980188B (en) | 2012-12-19 | 2012-12-19 | Water-coal-slurry spray gun and water-coal-slurry boiler |
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| CN (1) | CN102980188B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111322631B (en) * | 2020-03-13 | 2021-12-03 | 浙江鑫盛永磁科技有限公司 | Combustion chamber ash treatment device based on magnetofluid power generation |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62172105A (en) * | 1986-01-24 | 1987-07-29 | Hitachi Ltd | Combustion method and device for preventing production of nox |
| US4784043A (en) * | 1986-05-07 | 1988-11-15 | Hitachi, Ltd. | Atomizer and coal-water slurry fired boiler utilizing the same |
| CN2079257U (en) * | 1990-04-10 | 1991-06-19 | 华煤水煤浆技术联合中心 | Ramming type multistep water-coal mud atomizing nozzle |
| CN2474912Y (en) * | 2001-02-28 | 2002-01-30 | 王令 | Multifunction anti-clogging high concentration water coal slurry spray gun |
| CN2655045Y (en) * | 2003-11-07 | 2004-11-10 | 四川省九达水煤浆技术产业有限公司 | Dual-purpose burner using coal-water fluid and fuel oil |
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- 2012-12-19 CN CN201210554374.9A patent/CN102980188B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN102980188A (en) | 2013-03-20 |
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Effective date of registration: 20170122 Address after: 266200 Jimo, Shandong, Datong Street, No., No. 31 attached to the number of 2 Patentee after: Qingdao Haizhong Yuanheng heat Ltd. Address before: Ma Dian Zhen Dong Xiao Tun Cun Jiaozhou, Shandong city of Qingdao province 266000 Patentee before: Qingdao Haizhong Environmental Protection Boiler Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20191219 |
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| CF01 | Termination of patent right due to non-payment of annual fee |