CN202039239U - Rotational-flow fixed type black liquor spraying pistol - Google Patents
Rotational-flow fixed type black liquor spraying pistol Download PDFInfo
- Publication number
- CN202039239U CN202039239U CN2011201063245U CN201120106324U CN202039239U CN 202039239 U CN202039239 U CN 202039239U CN 2011201063245 U CN2011201063245 U CN 2011201063245U CN 201120106324 U CN201120106324 U CN 201120106324U CN 202039239 U CN202039239 U CN 202039239U
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- black liquor
- rotational
- liquor
- spinning disk
- flow
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Abstract
The utility model discloses a rotational-flow fixed type black liquor spraying pistol which comprises a connection pipe, a protective hood, a spray nozzle and a rotational-flow piece, wherein at least two liquor spraying holes are formed on the rotational-flow piece; the angles of inclination between the axial lines of the liquor spraying holes and the plane surface of the rotational-flow piece in the circumferential direction of the rotational-flow piece range from 30 degrees to 60 degrees, and the inclining directions of all the liquor spraying holes are consistent, so that longer spiral passages are formed for the black liquor; correspondingly, the displacement and falling time of black liquor particles are prolonged, liquor spraying capacity is enlarged, the atomization and intensive drying and combustion of the black liquor are facilitated, the dilatability of the black liquor articles is improved, the splatter is reduced, and the ejecting-to-wall problems of the black liquor are accordingly reduced, so that the blockade of the spraying pistol is avoided, the black liquor dropping and the dead cushion coat are avoided, the safe operational cycle of a soda recovery furnace is improved, the oil consumption is lowered and the economic benefit is good. The rotational-flow fixed type black liquor spraying pistol has noticeable benefits.
Description
Technical field
The utility model belongs to the burner technical field of alkali recovery boiler, relates in particular to the atomizing of black liquor and sprays the black liquor spray gun of usefulness.
Background technology
Paper industry is at present water environment to be threatened one of maximum industry, and especially the pollution of black liquid is the most serious.A large amount of funds has been dropped into to sewage disposal in each paper mill for this reason, has adopted multiple processing mode to make it to reach sewage drainage standard.Wherein alkali recovery technology is the effective method the most of current improvement black liquid, and this kind method is earlier black liquid to be concentrated, and in special combustion furnace internal combustion, makes organic compound combustion then, and inorganic matter reclaims.Black liquor after concentrating sprays into boiler through spray gun, and drying to moisture 10～15% o'clock drops on the bed course and to burn, and carries out reduction reaction, generates fused mass and reclaims available bases.In order to set up stable operating mode, black liquor is evenly distributed in stove, and intensive drying, for burning on bed course, black liquor creates conditions.And the spray gun that uses at present requires the big 0.2MPa of hydrojet pressure, black liquor solid content 35～40%, about 110 ℃ of black liquor temperatures, and the black liquor particle puffed degree of spraying is poor, the black liquor atomizing particle is little, flies easily to become estranged under the effect of air blast, air inducing to penetrate wall, results in blockage, occurs falling black liquor and dead bed course phenomenon, cause the safe operation cycle of alkali recovery furnace only to have 20～40 days, economic benefit is relatively poor.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of black liquor stability of flow, granularity neat and well spaced, be difficult for stopping up, the fixed black liquor spray gun of eddy flow that the black liquor after the ejection is evenly distributed in stove.
The technical scheme that the utility model is adopted for achieving the above object is:
The fixed black liquor spray gun of a kind of eddy flow; comprise tube connector, protective cover, nozzle and spinning disk; it is characterized in that: described spinning disk is provided with at least 2 spray holes, and the axis of described spray hole and the plane of spinning disk are that the incline direction of 30 °～60 ° and each spray hole is consistent along the circumferential angle of inclination of spinning disk.
As preferred version of the present utility model, the axis of described spray hole and the plane of spinning disk are 45 ° along the circumferential angle of inclination of spinning disk.Described spray hole is 3.
The fixed black liquor spray gun of eddy flow of the present utility model, there is certain angle on the axis of the spray hole that is provided with on its spinning disk and the plane of spinning disk along the peripheral, oblique of spinning disk, and the incline direction unanimity of each spray hole, make black liquor that long screw line passage be arranged in the ejection process, corresponding displacement and the fall time that increases the black liquor particle, help the atomizing of black liquor, help the intensive drying burning of black liquor, and can improve the puffed degree of black liquor particle, reduced and flown to lose, the corresponding black liquor that reduced is penetrated the wall phenomenon, thereby avoided the obstruction of spray gun, avoid alkali recovery furnace black liquor and dead bed course phenomenon to occur falling, improve the safe operation cycle of alkali recovery boiler, its beneficial effect is conspicuous.
Description of drawings
Fig. 1 is the schematic diagram of the fixed black liquor spray gun of the utility model eddy flow.
Fig. 2 is that the master of the spinning disk of the fixed black liquor spray gun of the utility model eddy flow looks schematic diagram.
Fig. 3 is the schematic top plan view of the spinning disk of the fixed black liquor spray gun of the utility model eddy flow.
Fig. 4 is along the cross-sectional schematic of A-A line among Fig. 3.
Among the figure: 1-tube connector, 2-protective cover, 3-nozzle, 4-spinning disk, 5-spray hole.
The specific embodiment
Embodiment below by indefiniteness also is described further the utility model in conjunction with the accompanying drawings.
Fig. 1 to Fig. 4 is the schematic diagram of a kind of specific embodiment of the fixed black liquor spray gun of the utility model eddy flow; the fixed black liquor spray gun of this eddy flow comprises tube connector, protective cover, nozzle and spinning disk; spinning disk is provided with 3 spray holes; the axis of spray hole and the plane of spinning disk are 45 ° along the circumferential angle of inclination of spinning disk, the incline direction unanimity of each spray hole.Protective cover 2 and nozzle 3 usefulness heat resisting cast steels are made, and tube connector 1 spinning disk 4 usefulness corrosion resistant plates are processed into.According to the difference of black liquid consistency, viscosity, can change the flow of black liquor by changing the nozzle and the spinning disk of different-diameter, satisfy the load variations of boiler.
More than cited embodiment only for the usefulness of understanding the utility model; be not to be restriction to the described technical scheme of the utility model; the those of ordinary skill in relevant field; on the basis of the described technical scheme of claim; can also make multiple variation or distortion, variation that all are equal to or distortion all should be encompassed within the claim protection domain of the present utility model.
Claims (3)
1. fixed black liquor spray gun of eddy flow; comprise tube connector, protective cover, nozzle and spinning disk; it is characterized in that: described spinning disk is provided with at least 2 spray holes, and the axis of described spray hole and the plane of spinning disk are that the incline direction of 30 °～60 ° and each spray hole is consistent along the circumferential angle of inclination of spinning disk.
2. the fixed black liquor spray gun of eddy flow according to claim 1 is characterized in that: the axis of described spray hole and the plane of spinning disk are 45 ° along the circumferential angle of inclination of spinning disk.
3. the fixed black liquor spray gun of eddy flow according to claim 1 and 2 is characterized in that: described spray hole is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201063245U CN202039239U (en) | 2011-04-13 | 2011-04-13 | Rotational-flow fixed type black liquor spraying pistol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201063245U CN202039239U (en) | 2011-04-13 | 2011-04-13 | Rotational-flow fixed type black liquor spraying pistol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202039239U true CN202039239U (en) | 2011-11-16 |
Family
ID=44966692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201063245U Expired - Fee Related CN202039239U (en) | 2011-04-13 | 2011-04-13 | Rotational-flow fixed type black liquor spraying pistol |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202039239U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997253A (en) * | 2012-12-21 | 2013-03-27 | 武汉锅炉集团工程技术有限公司 | Spiral-flow type waste alkali liquor spraying gun |
-
2011
- 2011-04-13 CN CN2011201063245U patent/CN202039239U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997253A (en) * | 2012-12-21 | 2013-03-27 | 武汉锅炉集团工程技术有限公司 | Spiral-flow type waste alkali liquor spraying gun |
| CN102997253B (en) * | 2012-12-21 | 2015-05-06 | 武汉锅炉集团工程技术有限公司 | Spiral-flow type waste alkali liquor spraying gun |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20160413 |