CN201371034Y - Amino flue gas desulfurizing device - Google Patents
Amino flue gas desulfurizing device Download PDFInfo
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- CN201371034Y CN201371034Y CN200920067192U CN200920067192U CN201371034Y CN 201371034 Y CN201371034 Y CN 201371034Y CN 200920067192 U CN200920067192 U CN 200920067192U CN 200920067192 U CN200920067192 U CN 200920067192U CN 201371034 Y CN201371034 Y CN 201371034Y
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- absorption liquid
- tower body
- flue gas
- tower
- amino
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Abstract
The utility model discloses a novel amino absorption liquid backflow spraying desulfurizing device. The purified flue gas is discharged from the top part of a desulfurizing tower. The essence of the innovation lies in providing three independent absorption liquid circulating systems for the desulfurizing tower; the three independent absorption liquid circulating systems comprise three independent spraying layers, determine the distance of optimized spraying layers, lead the flue gas to have enough contact time on each layer, and lead the diameter of the circulating pipeline and the diameter of the desulfurizing tower to have optimized proportion so as to be enough to set the gas-liquid ratio of the desulfurizing tower to be 50 to 200. The novel amino absorption liquid backflow spraying desulfurizing device can effectively control waste consumption of desulfurizing material ammonia and ensure high desulfurizing efficiency.
Description
Technical field
The utility model relates to a kind of amino flue gas desulfur device, and relating in particular to ammonia is that raw material reclaims the desulfurizer that oxysulfide is produced thiamine fertilizer from flue gas, belongs to electric power, metallurgy, environmental protection and chemical technology field, especially is fit to the flue gas desulfurization field.
Background technology
As everyone knows, contain SO in the flue gas
2, SO
3, NO
2, acidic gaseous harmful substance such as NO, HCl and HF, especially wherein SO
2It is the main matter that forms acid rain.A kind of way that solves the acid rain pollution is exactly the purified treatment of flue gas, and especially adopting alkaline matter is the flue gas desulfurization (FGD, Flue Gas Desulfurization) of raw material.
Patent CN1178735C discloses a kind of sulfur method and the device that are raw material with volatile weakly alkaline ammonia, especially desulfurizing tower is divided into oxidation panel, enriching section, absorber portion, washing section and demist section, used absorption liquid is the absorption liquid that contains ammonia, be called amino absorption liquid, flue gas and absorption liquid counter current contacting in the desulfurizing tower, and gas liquid ratio is 2000-5000 (volume ratio, down together), but in the practical application, this type of desulfurizing tower since structure too complexity exist equipment easily to stop up, the volatile waste of desulfurization material ammonia, the problem that raw material availability is not high.Patent CN2790569Y and CN1648049A have proposed to have the adverse current desulfurizing tower of ammonia exhausting section, attempt to solve the loss problem of ammonia, and gas liquid ratio is reduced to 200-2000, but it is also still too much in the practical application owing to the device interior member, device structure is too complicated, have the shortcoming that equipment stops up easily, thereby be difficult to further apply.CN1887408A also discloses the desulfurizing tower of the amino absorption liquid adverse current of a kind of adverse current, especially adopt the spray void tower that does not contain filler, have anti-obstruction to a certain degree and the performance that scabs, but, because it is provided with the packing section that one deck is used to wash flue gas and removes steam and acid mist especially, structure is slightly complicated still, and because steam is a kind of gas, and acid mist belongs to aerosol and all is difficult to remove by simple member or method, efficient is lower, gas liquid ratio is 200-2500, the liquid circulation flow amount is too small, thereby still have the shortcoming that desulfurization material is easily wasted loss, and the absorption liquid circulatory system has only two, is easy in the practical application occur because circulating pump fault even damage to stop transport and cause desulfurizer to be difficult to operation.And it does not disclose suitable spraying layer distance, and is often less than normal in the real process, causes the efficient poor efficiency.
Therefore, how to design a kind of ammonia volatilization loss and can effectively control, internals still less has more the anti-property stopped up, and has the more amino flue gas desulfur device of high mass transfer efficiency, and especially desulfurizing tower is the important assurance that this technology is applied, and has great importance.
Summary of the invention
The utility model technical issues that need to address are to disclose a kind of novel amino flue gas desulfur device, relate in particular to a kind of oxysulfide that from flue gas, reclaims, the desulfurizing tower that specifically comprises sulfur dioxide, not high to overcome the actual efficiency that prior art exists, the problem that device structure is complicated and running has difficulties.
Amino flue gas desulfur device of the present utility model, purifying flue gas discharges from the desulfurizing tower top, the essence of its innovation is to provide three independently absorption liquid circulatory systems for desulfurizing tower, comprise three independently spraying layers, and determined the spraying layer spacing of optimizing, making flue gas all have at each layer does enough times of contact, and make pipeloop and desulfurizing tower diameter have the ratio of optimization, enough make the gas liquid ratio of desulfurizing tower be set to 50-200, can effectively control the waste loss of desulfurization material ammonia and guarantee high desulfuration efficiency.
The technical solution of the utility model is as follows:
Amino flue gas desulfur device of the present utility model comprises desulfurizing tower, and described desulfurizing tower comprises:
Tower body is connected at the bottom of the tower of described tower body lower end, is connected the cat head of tower body upper end,
Be arranged on the cat head or near the exhanst gas outlet on the tower body of cat head, be arranged on the gas approach on the tower body of middle part,
Its innovation is characterised in that, be disposed with three layers of absorption liquid spray thrower between described gas approach and the exhanst gas outlet, they are connected with three absorption liquid circulation imports being provided with on the tower body respectively, and three absorption liquid circulation imports or three layers of absorption liquid spray thrower in the vertical direction are successively at a distance of 2.0～6.0m.Like this, lower floor's spray thrower is responsible for desulfurization, and the absorption liquid of its sprinkling contains desulfurization material ammonia, and the upper strata spray thrower is responsible for deamination, guarantees that the escape loss of ammonia can be effectively controlled; The middle level spray thrower can be managed desulfurization, also can manage deamination, have standby functions, can guarantee that the circulatory system moves continuously, especially the spray thrower spacing of You Huaing can be guaranteed absorption liquid long enough time of contact of flue gas and sprinkling, guarantee good absorption efficiency, comprise deamination efficient, it is short to spend low time of contact, and the liquid that last layer sprays can directly wash away one deck spray thrower down, anticorrosive coat on the members such as destruction spray thrower eyelid retractor, the too high desulfurizing tower height that can strengthen increases investment.
In addition, also be provided with two groups of packing layers above the upper strata absorption liquid spray thrower in described desulfurization tower body, and be provided with the water spray thrower between two groups of packing layers, the water inlet that is provided with on water spray thrower and the tower body is connected.Like this, can effectively realize the liquid foam carried secretly in the flue gas, or claim the separation of drop, especially when contain sulphur ammonium slurries in the flue gas, also, can wash packing layer, prevent the fouling and the obstruction of packing layer owing to having the water spray thrower.Flue gas just can leave desulfurizing tower through behind these two groups of packing layers.
The feature of desulfurizer disclosed in the utility model also is, included desulfurizing tower comprises that also being positioned at the absorption liquid overflow that sets gradually on the tower body of gas approach below exports, air intlet and agitator interface, and the air bubbling pipe that in tower body, is connected with air intlet, with the agitator that is connected with the agitator interface, and air bubbling pipe and described agitator number are 2 to 4.And, be arranged on the tower body of agitator interface below with corresponding three the absorption liquid loop exits of above-mentioned three absorption liquid circulation imports.The purpose of She Zhiing is like this, it below described gas approach the oxidizing and crystallizing pond, and the height in oxidizing and crystallizing pond is determined by absorption liquid overflow outlet, and can improve the performance of agitator dispersion air bubble, also can play the effect of suspended solid, kill two birds with one stone, but also can prevent that air from entering circulating absorption solution, reduce the efficient of circulating pump.
Another one of the present utility model is characterised in that, also be provided with three absorption liquid circulating pumps in that desulfurizing tower is external, they are connected the absorption liquid loop exit respectively with absorption liquid circulation import by three root absorption liquid pipeloops respectively, and are provided with the import of raw material ammonia corresponding to the described absorption liquid pipeline of lower floor and middle level spray thrower.Like this, can provide independently three absorption liquid circulatory systems for desulfurizing tower, comprise circulating pump and pipeloop that tower body is outer, and the spray thrower in the tower body, especially on the pipeloop of the lower floor and the middle level absorption liquid circulatory system raw material ammonia import is set, and the raw material ammonia import is not set on the pipeloop of the upper strata circulatory system, and be to guarantee that ammonia does not enter in the deamination absorption liquid, reduce the escape loss of ammonia to greatest extent.
In addition, the diameter of absorption liquid pipeloop and tower body diameter ratio are 0.04～0.10.Like this, can guarantee that the absorption liquid circulatory system provides enough big absorption liquid circular flow, especially make the ratio of absorption liquid circular flow and flue gas flow in the 50-200 scope.
Feature of the present utility model also is, described absorption liquid spray thrower is carried by absorption liquid and is responsible for, arm that is connected with the described person in charge and the atomizer that is connected on the arm are formed, and the spout of nozzle is downward, and the ratio of cross-sectional area is 0.5～1.5 in the quantity of nozzle and the described tower body.Can guarantee that like this absorption liquid can effectively be distributed to the cross section of whole tower body, and can not cause spray nozzle clogging and fouling.
And feature of the present utility model also is, also is provided with flue gas distributor in the tower body above described gas approach.Like this, can guarantee that flue gas and absorption liquid can even contact, improve absorption efficiency.
In addition, also comprise other members, comprise and eliminate the member that absorbs liquid wall stream effect that this member connects along the desulfurizing tower inwall.
At last, desulfurizer of the present utility model also is provided with in that desulfurizing tower is external, the flue gas air blast that is connecting gas approach by the flue gas pipeline, the air-blaster that is connecting air intlet by air line, connect the sulphur ammonium discharging pump of the sulphur ammonium slurries outlet on the oxidizing and crystallizing section tower body by slurry line, and sulphur ammonium discharging pump downstream the slurries cyclone and the centrifuge that connect successively.
The beneficial effect that above technical scheme obtains obviously is, three independently the circulatory system can be so that desulfurizing tower has different functional areas, and the standby circulatory system arranged, can effectively control the waste loss of desulfurization material ammonia, and since internals still less, have more the anti-property stopped up, more guaranteed to desulfuration efficiency, and guarantee the stable more and operation reliably of whole desulfurizer.
Described area is meant the area with the perpendicular cross section of fluid flow direction, or claims circulation area; Described import or export is meant the communication port that fluid flows to or flows out, and comprises that the pipe of the pipeline of being convenient to be connected before or after it connects, and is connected the flange that pipe connects.
The utility model is operation like this:
The flue gas that contains sulfur dioxide, carry through the flue gas air blast, enter in the desulfurization tower body, through flue gas distributor from gas approach, leave desulfurizing tower from exhanst gas outlet after three absorption liquid spray throwers enter packing layer, arrange to chimney through the purification flue gas pipeline that is connected with the desulfurizing tower exhanst gas outlet.Absorption liquid absorbs sulfur dioxide and obtains ammonium sulfurous.So-called absorption liquid is main component with ammonium sulfate, and contains the slurry attitude shape aqueous solution of solid ammonium sulfate.
The absorption liquid that contains ammonium sulfite enters the oxidizing and crystallizing pond that is positioned at the gas approach below.
In the oxidizing and crystallizing pond, the air oxidation that ammonium sulfite is blasted by air-blaster is an ammonium sulfate, and surpass the solubility post crystallization in ammonium sulfate concentrations and separate out solid ammonium sulfate, the agitator that is provided with in the oxidizing and crystallizing section can accelerating oxidation efficient, and prevent that deposition of solid from scabbing.
The absorption liquid of circulation, circulating pump by correspondence is extracted out from the oxidizing and crystallizing pond, constantly deliver to corresponding spray thrower, especially just often in lower floor's circulatory system, ammonification import on lower floor's pipeloop is enabled, and when lower floor's circulatory system fault, enable the middle level circulatory system, and enable the ammonification import on the pipeloop of middle level; The upper strata circulatory system is enabled in addition, but when it breaks down, enables middle layer system, but does not enable the ammonification import on it.Also can under lower floor's circulatory system and upper strata circulatory system normal operation, enable the middle level circulatory system where necessary, be equivalent to increase a circulatory system.
Just can realize the flue gas ammonia method desulfurizing that the utility model proposes fully by above step, its efficient height, the ammonia waste is few.
Description of drawings
Fig. 1 is the schematic diagram of described desulfurizing tower.
Fig. 2 is the schematic diagram of described amino flue gas desulfur device.
The specific embodiment
Referring to Fig. 1 and Fig. 2, amino flue gas desulfur device of the present utility model comprises desulfurizing tower 1, and described desulfurizing tower 1 comprises:
Described desulfurizing tower 1 also comprises, be positioned at the absorption liquid overflow outlet 107 that sets gradually on the gas approach 104 below tower bodies 101, air intlet 111, agitator interface 110, and the air bubbling pipe 15 that in tower body 101, is connected with air intlet 111, with the agitator 16 that is connected with agitator interface 110, and air bubbling pipe 15 and agitator 16 numbers are 3; And, on tower body 101 below the agitator interface 110, also be provided with three absorption liquid loop exits 109a, 109b and 109c.
In addition, outside tower body 101, also be provided with three absorption liquid circulating pump 4a, 4b and 4c, they pass through three root absorption liquid pipeloop 5a, 5b and 5c respectively, with three absorption liquid loop exit 109a, 109b and 109c and three absorption liquid circulation import 112a, 112b is connected with 112c, and absorption liquid pipeline 5a and absorption liquid pipeline 5b are provided with the import of raw material ammonia.
Especially, three absorption liquid spray thrower 13a, 13b and 13c are carried by absorption liquid and are responsible for, arm that is connected with the described person in charge and the atomizer that is connected on the arm are formed, the spout of nozzle is downward, and the ratio of cross-sectional area is 0.78 in the quantity of nozzle and the tower body, and, absorption liquid pipeloop 5a, the diameter ratio of the diameter of 5b and 5c and tower body 101 is 0.07.
Claims (9)
1, a kind of amino flue gas desulfur device comprises desulfurizing tower (1), and described desulfurizing tower (1) comprising:
Tower body (101),
Be connected (103) at the bottom of the tower of described tower body (101) lower end,
Be connected the cat head (102) of described tower body (101) upper end,
Be arranged on the described cat head (102) or near the exhanst gas outlet (105) on the tower body (101) of described cat head (102),
Be arranged on the gas approach (104) on the described middle part tower body (101), it is characterized in that,
Be disposed with three layers of absorption liquid spray thrower (13a between described gas approach (104) and the exhanst gas outlet (105), 13b and 13c), they go up three absorption liquid circulation import (112a that are provided with described tower body (101) respectively, 112b and 112c) be connected, and, described three absorption liquid circulation imports (112a, 112b and 112c) or described three layers of absorption liquid spray thrower (13a, 13b and 13c) in the vertical direction are successively at a distance of 2.0～6.0m.
2, amino flue gas desulfur device according to claim 1, it is characterized in that, described absorption liquid spray thrower (13c) top in described tower body (101) is provided with two groups of packing layers (11a and 11b), and between described two groups of packing layers, being provided with water spray thrower (12), described water spray thrower (12) is gone up the water inlet (106) that is provided with described tower body (101) and is connected.
3, amino flue gas desulfur device according to claim 2, it is characterized in that, described desulfurizing tower (1) also comprises, be positioned at the absorption liquid overflow outlet (107) that sets gradually on described gas approach (104) the below tower body (101), air intlet (111), agitator interface (110), and the air bubbling pipe (15) that in described tower body (101), is connected with described air intlet (111), with the agitator (16) that is connected with described agitator interface (110), and described air bubbling pipe (15) and described agitator (16) number are 2 to 4.
4, amino flue gas desulfur device according to claim 3 is characterized in that, also is provided with three absorption liquid loop exits (109a, 109b and 109c) on described agitator interface (110) below tower body (101).
5, amino flue gas desulfur device according to claim 4, it is characterized in that, outside described tower body (101), also be provided with three absorption liquid circulating pump (4a, 4b, 4c), they are respectively by three root absorption liquid pipeloop (5a, 5b, 5c) described absorption liquid loop exit (109a, 109b and 109c) and described absorption liquid circulation import (112a, 112b and 112c) are connected.
6, amino flue gas desulfur device according to claim 5 is characterized in that, described absorption liquid pipeline (5a) and absorption liquid pipeline (5b) are provided with the import of raw material ammonia.
7, amino flue gas desulfur device according to claim 2 is characterized in that, also is provided with flue gas distributor (14) in the tower body of the top of described gas approach (104).
8, amino flue gas desulfur device according to claim 1, it is characterized in that, described absorption liquid spray thrower (13a, 13b and 13c) carry the person in charge by absorption liquid, arm that is connected with the described person in charge and the atomizer that is connected on the arm are formed, the spout of described nozzle is downward, and the ratio of cross-sectional area is 0.5～1.5 in the quantity of nozzle and the described tower body.
According to each described amino desulfurizer of claim 5 to 8, it is characterized in that 9, the diameter and described tower body (101) diameter ratio of described absorption liquid pipeloop (5a, 5b or 5c) are 0.04～0.10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920067192U CN201371034Y (en) | 2009-01-20 | 2009-01-20 | Amino flue gas desulfurizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920067192U CN201371034Y (en) | 2009-01-20 | 2009-01-20 | Amino flue gas desulfurizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201371034Y true CN201371034Y (en) | 2009-12-30 |
Family
ID=41497113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920067192U Expired - Lifetime CN201371034Y (en) | 2009-01-20 | 2009-01-20 | Amino flue gas desulfurizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201371034Y (en) |
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2009
- 2009-01-20 CN CN200920067192U patent/CN201371034Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI SHENCHUAN ENVIRONMENT PROTECTION SCIENCE Free format text: FORMER OWNER: LOU AIJUAN Effective date: 20100512 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200237 ROOM 139/501, HUAGONGYI VILLAGE, NO.130, MEILONG ROAD, SHANGHAI CITY TO: 201100 ROOM 702, NO.3, LANE 58, XINJIAN EAST ROAD, MINHANG DISTRICT, SHANGHAI CITY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100512 Address after: 201100, room 3, No. 58, Lane 702, Xin Jian East Road, Shanghai, Minhang District Patentee after: Shenchuan Environment Protection Science and Technology Co., Ltd., Shanghai Address before: 200237 139/501 room, No.1 Chemical village, 130 Meilong Road, Shanghai Patentee before: Lou Aijuan |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20180425 Address after: Room 803, room 36, No. 1, Bi Quan Road, Minhang District, Shanghai Patentee after: Lou Aijuan Address before: 201100 room 702, 58 lane, Xinjian East Road, Minhang District, Shanghai, 702 Patentee before: Shenchuan Environment Protection Science and Technology Co., Ltd., Shanghai |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180824 Address after: 200233 201, room 38, 333 Qinjiang Road, Xuhui District, Shanghai. Patentee after: Shanghai Shen Xin River Environmental Protection Engineering Technology Co., Ltd. Address before: Room 803, room 36, No. 1, Bi Quan Road, Minhang District, Shanghai Patentee before: Lou Aijuan |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091230 |
|
| CX01 | Expiry of patent term |