CN209564829U - A kind of circulated sprinkling system of fire coal boiler fume high-efficiency desulfurization denitrification apparatus - Google Patents
A kind of circulated sprinkling system of fire coal boiler fume high-efficiency desulfurization denitrification apparatus Download PDFInfo
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- CN209564829U CN209564829U CN201821811029.8U CN201821811029U CN209564829U CN 209564829 U CN209564829 U CN 209564829U CN 201821811029 U CN201821811029 U CN 201821811029U CN 209564829 U CN209564829 U CN 209564829U
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Abstract
The utility model relates to a kind of circulated sprinkling systems of fire coal boiler fume high-efficiency desulfurization denitrification apparatus, including reaction tower, three layers of spraying layer are equipped in reaction tower, respectively the first spraying layer, the second spraying layer, third spraying layer, third spraying layer is arranged above two layers of spraying layer, and the first spraying layer includes central water tube, and the utility model reaction tower, pipeline and spray equipment intensity and acid-proof alkaline are high, not easy to wear, denitration efficiency greatly improves.
Description
Technical field
The utility model relates to a kind of circulated sprinkling system more particularly to a kind of small scall coal-fired boiler flue gas high-efficiency desulfurization are de-
The circulated sprinkling system of nitre device, belongs to environmental protection machinery equipment technical field.
Background technique
Although the use of coal-burning boiler makes tremendous contribution to the economic liftoff in China, the discharge of flue gas exhaust gas is also right
China's air environment causes huge pollution, and SO2, NOX pollution have been more than the first big pollutant that smoke contamination becomes atmospheric environment.
Prior art desulfurization mainly has wet desulphurization, semi-dry desulphurization, dry desulfurization etc., and wet desulphurization mainly has lime
The sulfur removal technologies such as stone-gypsum, magnesium oxide method, ammonia process, alkaline process；At present the relatively broad denitration technology of domestic application be SCR and
Catalyst is core in SNCR, SCR non-selective catalytic reduction denitration technology, 350 degree of running temperature or so；SNCR selectivity
Catalytic-reduction denitrified technique is usually to spray into the ammonium hydroxide of content 10-20% in high temperature reaction zone, and denitration optimum temperature is 850~
1100℃。
Present small scall coal-fired boiler substantial amounts, mainstream sulfur removal technology is based on Limestone-gypsum Wet Flue Gas Desulfurization Process, equipment
Initial investment and operation power charge are higher, and reaction tower internal component and pipe wear are serious；SCR denitration cost of investment is larger, and one
As small business be difficult to bear；SNCR denitration temperature requirement is higher, and the injection of reducing agent easily causes temperature decrease in reaction zone
And it is uneven, cause denitration efficiency low, general denitration efficiency is only 30-50% at present, and influences efficiency of combustion in furnace.
Utility model content
The technical problems to be solved in the utility model is against the above deficiency, to provide a kind of for small scall coal-fired boiler flue gas
High-efficiency desulfurization denitrification apparatus circulated sprinkling system, reaction tower, pipeline and spray equipment intensity and acid-proof alkaline are high, are not easy
Abrasion, denitration efficiency greatly improve.
In order to solve the above technical problems, the technical solution adopted in the utility model is as follows: a kind of fire coal boiler fume is high
The circulated sprinkling system of desulfuring and denitrifying apparatus, including reaction tower are imitated, three layers of spraying layer, the respectively first spray are equipped in reaction tower
Layer, the second spraying layer, third spraying layer, third spraying layer are arranged above two layers of spraying layer, and the first spraying layer includes middle edema with the heart involved
Pipe.
As a further improvement of the above technical scheme:
The two sides of the central water tube are respectively equipped with first support bar and second support bar, first support bar, the second support
Bar is arranged in parallel with central water tube respectively, and the first distributive pipe, second point are respectively equipped between first support bar and second support bar
Water pipe, third distributive pipe, the 4th distributive pipe and the 5th distributive pipe.
The side of first distributive pipe is set there are two the first sparge pipe, and two the first sparge pipes are separately positioned on middle edema with the heart involved
Pipe two sides, two the first sparge pipes are arranged between first support bar and second support bar, and the other side of the first distributive pipe is equipped with
Two the second sparge pipes, two the second sparge pipes are separately positioned on the outside of first support bar and second support bar, first point of water
The both ends of pipe are respectively equipped with third sparge pipe.
Second distributive pipe is identical as the first distributive pipe length, the side of the second distributive pipe set there are two the 4th water spray
Pipe, two the 4th sparge pipes are separately positioned on central water tube two sides, and the both ends of the second distributive pipe are respectively equipped with the 5th sparge pipe.
The third distributive pipe, the 4th distributive pipe are separately positioned on the two sides of the first distributive pipe, the second distributive pipe, third point
The side of water pipe is set there are two the 5th sparge pipe, and two the 5th sparge pipes are separately positioned on central water tube two sides, third distributive pipe
Both ends be respectively equipped with the 6th sparge pipe.
The side of 4th distributive pipe is set there are two the 7th sparge pipe, and two the 7th sparge pipes are separately positioned on middle edema with the heart involved
The both ends of pipe two sides, the 4th distributive pipe are respectively equipped with the 8th sparge pipe.
The other side of the 4th distributive pipe is arranged in 5th distributive pipe, and the both ends of the 5th distributive pipe are respectively equipped with the 9th spray
Water pipe.
The third sparge pipe, the 5th sparge pipe, the 6th sparge pipe, the 8th sparge pipe, the 9th sparge pipe are in same circumference
On.
Second spraying layer is identical as the first spraying layer structure, the central water tube of the second spraying layer and the first spraying layer
The angle of straight line is 18 degree where central water tube.
The utility model takes above technical scheme, has the advantage that
1, equipment is simple, and one-time investment is few, and maintenance cost is low, stable and reliable operation；
2, reaction tower, pipeline and spray equipment use glass steel material, proof strength and acid-proof alkaline；
3, the mode of washing combined using spray gun top layer atomizing spray, middle part nozzle atomization, big liquid-gas ratio spray, is improved anti-
Answer denitration efficiency.
The utility model is described in further detail with reference to the accompanying drawings and examples.
Detailed description of the invention
Attached drawing 1 is the circulated sprinkling system of fire coal boiler fume high-efficiency desulfurization denitrification apparatus in the utility model embodiment
Structural schematic diagram；
Attached drawing 2 is the structural schematic diagram of the first spraying layer in the utility model embodiment；
Attached drawing 3 is the structural schematic diagram of the second spraying layer in the utility model embodiment.
In figure, 45- reaction tower, the first spraying layer of 51-, the second spraying layer of 52-, 53- central water tube, 54- first support bar,
55- second support bar, the first distributive pipe of 56-, the second distributive pipe of 57-, 58- third distributive pipe, the 4th distributive pipe of 59-, 60- the 5th
Distributive pipe, the first sparge pipe of 61-, 62- third sparge pipe, the second sparge pipe of 63-, the 4th sparge pipe of 64-, the 5th sparge pipe of 65-,
The 6th sparge pipe of 66-, the 7th sparge pipe of 67-, the 8th sparge pipe of 68-, the 9th sparge pipe of 69-, the tenth sparge pipe of 70-, 75- third
Spraying layer.
Specific embodiment
Embodiment, as illustrated in the accompanying drawings from 1 to 3, a kind of circulated sprinkling system of fire coal boiler fume high-efficiency desulfurization denitrification apparatus,
Including reaction tower 45, three layers of spraying layer, respectively the first spraying layer 51, the second spraying layer 52, third spray are equipped in reaction tower 45
Drenching layer 75, third spraying layer 75 are arranged above two layers of spraying layer, and the first spraying layer 51 includes central water tube 53, central water tube 53
Two sides be respectively equipped with first support bar 54 and second support bar 55, first support bar 54, second support bar 55 respectively with center
Water pipe 53 is arranged in parallel, and the first distributive pipe 56, the second distributive pipe are respectively equipped between first support bar 54 and second support bar 55
57, third distributive pipe 58, the 4th distributive pipe 59 and the 5th distributive pipe 60；
The side of first distributive pipe 56 is set there are two the first sparge pipe 61, and two the first sparge pipes 61 are separately positioned on center
53 two sides of water pipe, two the first sparge pipes 61 are arranged between first support bar 54 and second support bar 55, the first distributive pipe 56
The other side set there are two the second sparge pipe 63, two the second sparge pipes 63 are separately positioned on first support bar 54 and the second support
The both ends in the outside of bar 55, the first distributive pipe 56 are respectively equipped with third sparge pipe 62；
Second distributive pipe 57 is identical as 56 length of the first distributive pipe, the side of the second distributive pipe 57 set there are two the 4th water spray
Pipe 64, two the 4th sparge pipes 64 are separately positioned on 53 two sides of central water tube, and two the first sparge pipe 61 settings are in the first support
Between bar 54 and second support bar 55, the both ends of the second distributive pipe 57 are respectively equipped with the tenth sparge pipe 70,
Third distributive pipe 58, the 4th distributive pipe 59 are separately positioned on the two sides of the first distributive pipe 56, the second distributive pipe 57, the
The side of three distributive pipes 58 is set there are two the 5th sparge pipe 65, and two the 5th sparge pipes 65 are separately positioned on 53 liang of central water tube
Side, two the first sparge pipes 61 are arranged between first support bar 54 and second support bar 55, the both ends point of third distributive pipe 58
Not She You the 6th sparge pipe 66,
The side of 4th distributive pipe 59 is set there are two the 7th sparge pipe 67, and two the 7th sparge pipes 67 are separately positioned on center
53 two sides of water pipe, two the first sparge pipes 61 are arranged between first support bar 54 and second support bar 55, the 4th distributive pipe 59
Both ends be respectively equipped with the 8th sparge pipe 68,
The other side of the 4th distributive pipe 59 is arranged in 5th distributive pipe 60, and the both ends of the 5th distributive pipe 60 are respectively equipped with the 9th
Sparge pipe 69,
Third sparge pipe 62, the tenth sparge pipe 70, the 6th sparge pipe 66, the 8th sparge pipe 68, the 9th sparge pipe 69 are same
On one circumference,
Second spraying layer 52 is identical as 51 structure of the first spraying layer, the central water tube and the first spraying layer of the second spraying layer 52
The angle of straight line is 18 degree where 51 central water tube.
Third layer spraying layer is arranged in top, and two atomizing lances, the solution of lance ejection sodium chlorite and water, through height is arranged
Air blown atomization is pressed, is contacted with the gas of desulphurization denitration preliminary in tower, requirement discharge efficiency is reached, injection solution enters
Supplement of the bottom cycle slurry pool as circulation fluid in tower.Two layers of the use dual-purpose one in lower part is for lining plastic corrosion free pump circulated sprinkling benefit
With.
Thus nozzle generates a concentration of slurry up to 200% using special arrangement, whole spray, coverage rate inside tower body
Quite intensive, the spray space with suitable degree of overlapping, the design parameter of every layer of spraying layer is different, under big on spray partial size
Tiny steam and formation of foam steam small, that lower layer's spray generates.
After flue gas enters in tower from desulfurizing tower lower inlet, the SO2 of high concentration is first and the spray phase of low alkalinity, big closeness
Mixing carries out desulphurization denitration.
Claims (9)
1. a kind of circulated sprinkling system of fire coal boiler fume high-efficiency desulfurization denitrification apparatus, it is characterised in that: including reaction tower
(45), three layers of spraying layer, respectively the first spraying layer (51), the second spraying layer (52), third spray are equipped in reaction tower (45)
Layer (75), third spraying layer (75) are arranged above two layers of spraying layer, and the first spraying layer (51) includes central water tube (53).
2. a kind of circulated sprinkling system of fire coal boiler fume high-efficiency desulfurization denitrification apparatus as described in claim 1, feature
Be: the two sides of the central water tube (53) are respectively equipped with first support bar (54) and second support bar (55), first support bar
(54), second support bar (55) is arranged in parallel with central water tube (53) respectively, first support bar (54) and second support bar (55)
Between be respectively equipped with the first distributive pipe (56), the second distributive pipe (57), third distributive pipe (58), the 4th distributive pipe (59) and the 5th
Distributive pipe (60).
3. a kind of circulated sprinkling system of fire coal boiler fume high-efficiency desulfurization denitrification apparatus as claimed in claim 2, feature
Be: the side of first distributive pipe (56) is set there are two the first sparge pipe (61), and two the first sparge pipes (61) set respectively
Set in central water tube (53) two sides, two the first sparge pipes (61) settings first support bar (54) and second support bar (55) it
Between, the other side of the first distributive pipe (56) is set there are two the second sparge pipe (63), and two the second sparge pipes (63) are separately positioned on
The both ends in the outside of first support bar (54) and second support bar (55), the first distributive pipe (56) are respectively equipped with third sparge pipe
(62).
4. a kind of circulated sprinkling system of fire coal boiler fume high-efficiency desulfurization denitrification apparatus as claimed in claim 3, feature
Be: second distributive pipe (57) is identical as the first distributive pipe (56) length, there are two the side of the second distributive pipe (57) is set
4th sparge pipe (64), two the 4th sparge pipes (64) are separately positioned on central water tube (53) two sides, the second distributive pipe (57)
Both ends are respectively equipped with the tenth sparge pipe (70).
5. a kind of circulated sprinkling system of fire coal boiler fume high-efficiency desulfurization denitrification apparatus as claimed in claim 4, feature
Be: the third distributive pipe (58), the 4th distributive pipe (59) are separately positioned on the first distributive pipe (56), the second distributive pipe (57)
Two sides, the side of third distributive pipe (58) sets there are two the 5th sparge pipe (65), and two the 5th sparge pipes (65) are respectively set
In central water tube (53) two sides, the both ends of third distributive pipe (58) are respectively equipped with the 6th sparge pipe (66).
6. a kind of circulated sprinkling system of fire coal boiler fume high-efficiency desulfurization denitrification apparatus as claimed in claim 5, feature
Be: the side of the 4th distributive pipe (59) is set there are two the 7th sparge pipe (67), and two the 7th sparge pipes (67) are set respectively
It sets in central water tube (53) two sides, the both ends of the 4th distributive pipe (59) are respectively equipped with the 8th sparge pipe (68).
7. a kind of circulated sprinkling system of fire coal boiler fume high-efficiency desulfurization denitrification apparatus as claimed in claim 6, feature
Be: the 5th distributive pipe (60) setting is distinguished at the other side of the 4th distributive pipe (59), the both ends of the 5th distributive pipe (60)
Equipped with the 9th sparge pipe (69).
8. a kind of circulated sprinkling system of fire coal boiler fume high-efficiency desulfurization denitrification apparatus as claimed in claim 7, feature
It is: the third sparge pipe (62), the tenth sparge pipe (70), the 6th sparge pipe (66), the 8th sparge pipe (68), the 9th water spray
Manage (69) on the same circumference.
9. a kind of circulated sprinkling system of fire coal boiler fume high-efficiency desulfurization denitrification apparatus as described in claim 1, feature
Be: second spraying layer (52) is identical as the first spraying layer (51) structure, the central water tube of the second spraying layer (52) and
The angle of straight line is 18 degree where the central water tube of one spraying layer (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821811029.8U CN209564829U (en) | 2018-11-05 | 2018-11-05 | A kind of circulated sprinkling system of fire coal boiler fume high-efficiency desulfurization denitrification apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821811029.8U CN209564829U (en) | 2018-11-05 | 2018-11-05 | A kind of circulated sprinkling system of fire coal boiler fume high-efficiency desulfurization denitrification apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN209564829U true CN209564829U (en) | 2019-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821811029.8U Active CN209564829U (en) | 2018-11-05 | 2018-11-05 | A kind of circulated sprinkling system of fire coal boiler fume high-efficiency desulfurization denitrification apparatus |
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| Country | Link |
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| CN (1) | CN209564829U (en) |
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2018
- 2018-11-05 CN CN201821811029.8U patent/CN209564829U/en active Active
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