CN106268189B - Intersection type desulfurization equipment and method - Google Patents
Intersection type desulfurization equipment and method Download PDFInfo
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- CN106268189B CN106268189B CN201610774441.6A CN201610774441A CN106268189B CN 106268189 B CN106268189 B CN 106268189B CN 201610774441 A CN201610774441 A CN 201610774441A CN 106268189 B CN106268189 B CN 106268189B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
- B01D53/1481—Removing sulfur dioxide or sulfur trioxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
The invention relates to an intersection type desulfurization technology and equipment, the technology effectively leads gas and liquid to be crossly converged by controlling the flow of flue gas and circulating liquid, the gas and the liquid are mixed and contacted in the process of gas and liquid convergence, and the harmful substances in the gas are absorbed and dissolved by the liquid, thereby achieving the purpose of purification.
Description
Technical Field
The invention relates to an intersection type desulfurization technology and equipment, in particular to a high-efficiency desulfurization flue gas wet purification technology and equipment.
Background
At present, in a coal combustion process and a petroleum coke calcination process system, raw materials contain more raw materialsSulfur content and raw material oxidation consumption, a large amount of pollutants such as sulfur dioxide and the like are generated in a flue gas system, and the sulfur dioxide content in the flue gas of a coal combustion system is more than 10000mg/m when the highest sulfur dioxide content is3The fluctuation range of sulfur dioxide contained in the petroleum coke calcination flue gas is 1600-7000 mg/m3And the limit value of the national clean emission standard sulfur dioxide is 35mg/m3The desulfurization process is converted from a rough formula to refined. The existing desulfurization technologies are classified into a dry method, a semi-dry method and a wet method, wherein the dry method and the semi-dry method cannot meet the national clean emission requirement due to insufficient reaction after contact, and the wet purification system has relatively high purification efficiency on sulfur dioxide, but most of the purification systems cannot meet the clean emission requirement due to incomplete contact.
The intersection type desulfurization technology and the equipment adopt a wet purification method, in the process of gas phase flow, the internal rotational flow of the equipment is realized through structural design, the local turbulence of the equipment is reduced, the target of local backflow is eliminated, the flow uniformity and efficiency are improved, the gas-liquid mixing is enhanced through a mode of comprehensive gas-liquid and repeated intersection contact, and the purification efficiency of the system equipment is improved.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the cross type desulfurization technology and equipment adopt a wet purification method, realize the internal rotational flow of the equipment through structural design in the gas phase flowing process, reduce the local turbulence of the equipment, eliminate the target of local backflow, improve the flowing uniformity and efficiency, strengthen gas-liquid mixing and improve the purification efficiency of system equipment through a mode of comprehensive gas-liquid and multiple cross contact.
The technical scheme of the invention is as follows: the utility model provides an intersection formula desulfurization is equipped, includes the casing, and there is the air intake casing downside, and there is the air outlet casing top, and there are ash bucket and outlet casing bottom, and there is circulating water takeover casing outside top, and there are spray tube and nozzle corresponding inside, and there is the defroster spray tube and nozzle top, and there is the washing spray tube defroster top, has whirl gradient mixed flow plate structure in the casing, and whirl gradient mixed flow plate structure passes through support piece to be fixed on shells inner wall.
The air inlet sends the flue gas into the shell through the tangential direction of the shell barrel.
The structure of the rotational flow gradient mixed flow plate is in a level gradient, and a gas-liquid intersection of each layer of the ladder plate is provided with a downward cambered surface.
The setting quantity of whirl gradient mixed flow plate structure is more than two sets ofly, and adjacent two sets of inter block set up opposite direction.
The wall surface of the shell is provided with an inspection manhole, and an inspection platform, a ladder stand and a guardrail auxiliary facility are arranged outside the shell.
According to the intersection type desulfurization technology and equipment, the flue gas is fed into the shell from the tangential direction of the shell body by the air inlet, so that the flue gas flow rises in the rotating process after entering the purification equipment and gradually intersects and contacts with the washing circulating water to flow.
The intersection type desulfurization technology and equipment have the advantages that the rotational flow gradient mixed flow plate structure is arranged in the shell, the structure is gradually rotated upwards according to the rotation direction of the airflow, the airflow is separated by the multilayer structure, the phenomenon that large bubbles penetrate through liquid when the gas and the liquid intersect is ensured, meanwhile, the downward arc surface is locally arranged at the gas and liquid intersection port, the phenomenon of gas and liquid convection and the phenomenon of liquid cutoff are ensured not to occur, meanwhile, the contact area of gas and liquid mixture is increased by controlling the step flow of washing liquid, and the contact efficiency and the purification efficiency of the gas and liquid mixture are improved.
Compared with the prior art, the invention effectively leads the gas and the liquid to be crossly converged by force by controlling the flow of the flue gas and the flow of the circulating liquid, the liquid is mixed and contacted in the process of converging the gas and the liquid, harmful substances in the gas are absorbed and dissolved by the liquid, and the aim of purification is achieved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The cross type desulfurization technology and equipment of the invention have the advantages that the flue gas is sent into the shell from the tangential direction of the shell body by the air inlet, the flue gas flow rises in the rotating process after entering the purification equipment and gradually contacts and flows with the washing circulating water in a cross way, the flowing mode eliminates the large local vortex of the equipment, and the flue gas gradually rises in the rotating process. Set up whirl gradient mixed flow plate structure in the casing, this structure is when progressively rotating upwards according to the air current direction of rotation, just separates the air current with multilayer structure, guarantees that the phenomenon that big type bubble passed liquid does not appear when the gas-liquid intersects, sets up the downward cambered surface at gas-liquid intersection mouthful part simultaneously, guarantees not appear gas-liquid convection phenomenon and liquid cutout phenomenon, flows through control washing liquid step simultaneously, has increased gas-liquid mixture area of contact, improves gas-liquid mixture contact efficiency and purification efficiency.
Intersection formula sweetener based on above-mentioned reason design, as shown in fig. 1, an intersection formula desulfurization technique and equipment, including casing 1, there is air intake 2 casing 1 downside, air intake 2 sends into casing 1 with the flue gas through 1 barrel tangential direction of casing, there is air outlet 3 casing 1 top, there are ash bucket and outlet 4 casing 1 bottom, there is whirl gradient mixed flow plate structure 5 in the casing 1, whirl gradient mixed flow plate structure 5 passes through support piece 6 to be fixed on the casing 1 inner wall, whirl gradient mixed flow plate structure 5 is the level gradient, the gas-liquid intersection mouth of every layer of ladder sets up the downward cambered surface. The setting quantity of the rotational flow gradient mixed flow plate structure 5 is more than two groups, and the directions of the two adjacent groups are opposite. There is circulating water takeover 7 casing 1 outside top, corresponds inside to have spray tube and nozzle 8, and there is defroster 9 spray tube and nozzle 8 top, and there is washing spray tube 10 demister 9 top, and 1 wall of casing has maintenance manhole 11, and casing 1 has auxiliary facilities such as maintenance platform, cat ladder, guardrail 12 outward.
In the use, the flue gas gets into casing 1 from air intake 2 along tangential direction, and at 1 internal rotation of casing and rise, progressively pass multistage whirl gradient mixed flow plate 5 at the in-process that rises and strengthen the gas-liquid mixture, the flue gas after the contact of mixing many times is washed to the short distance secondary sprays the washing, and the flue gas after being purified passes through the defroster at last and dehumidifies the back and discharge into in the atmosphere.
Claims (3)
1. An intersection formula desulfurization is equipped which characterized in that: the washing machine comprises a shell (1), wherein an air inlet (2) is formed in the lower side of the shell (1), an air outlet (3) is formed in the top of the shell (1), an ash hopper and a water outlet (4) are formed in the bottom of the shell (1), a circulating water connecting pipe (7) is arranged above the outer portion of the shell (1), a spray pipe and a nozzle (8) are correspondingly arranged in the shell, a demister (9) is arranged above the spray pipe and the nozzle (8), a washing spray pipe (10) is arranged above the demister (9), a rotational flow gradient mixed flow plate structure (5) is arranged in the shell (1), and the rotational flow gradient mixed flow plate structure (5) is fixed on the inner wall of the shell (1) through a support piece (6); the rotational flow gradient mixed flow plate structure (5) is in a gradient level, and a gas-liquid intersection of each layer of the gradient plate is provided with a downward cambered surface; the number of the swirl gradient mixed flow plate structures (5) is more than two groups, and the directions of the adjacent two groups are opposite.
2. The indirect desulfurization plant of claim 1, wherein: the air inlet (2) sends the flue gas into the shell (1) through the tangential direction of the cylinder body of the shell (1).
3. The indirect desulfurization plant of claim 1, wherein: the wall surface of the shell (1) is provided with an inspection manhole (11), and an inspection platform, a ladder stand and a guardrail (12) are arranged outside the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610774441.6A CN106268189B (en) | 2016-08-31 | 2016-08-31 | Intersection type desulfurization equipment and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610774441.6A CN106268189B (en) | 2016-08-31 | 2016-08-31 | Intersection type desulfurization equipment and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106268189A CN106268189A (en) | 2017-01-04 |
| CN106268189B true CN106268189B (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610774441.6A Active CN106268189B (en) | 2016-08-31 | 2016-08-31 | Intersection type desulfurization equipment and method |
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Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS4945219B1 (en) * | 1970-12-09 | 1974-12-03 | ||
| US3722185A (en) * | 1971-06-09 | 1973-03-27 | Fisher Klosterman Inc | Gas scrubbing method and apparatus |
| US3870494A (en) * | 1973-01-24 | 1975-03-11 | Dewitt H Doane | Grease filter for kitchen ventilators |
| GB1459784A (en) * | 1973-04-26 | 1976-12-31 | Croftshaw Engs Ltd | Adsorber apparatus |
| DE2355106C3 (en) * | 1973-11-03 | 1978-12-07 | Dynamit Nobel Ag, 5210 Troisdorf | Method and device for the exchange of substances between heterogeneous systems |
| DE2518975C3 (en) * | 1975-04-29 | 1980-07-31 | Dynamit Nobel Ag, 5210 Troisdorf | Device for carrying out direct current reactions in heterogeneous systems |
| US4256674A (en) * | 1979-10-01 | 1981-03-17 | Shafranovsky Alexandr V | Counter-current gas-liquid contact apparatus |
| CA1188978A (en) * | 1981-02-03 | 1985-06-18 | Richard C. Darton | Column for treating gases |
| CN2468567Y (en) * | 2001-03-27 | 2002-01-02 | 杨驭 | Spraying and rotating film type apparatus for purifying flue gas |
| CA2364100A1 (en) * | 2001-11-30 | 2003-05-30 | Diversified Metals Engineering Ltd. | Method and apparatus for scrubbing gases, using mixing vanes |
| US6923852B2 (en) * | 2002-10-24 | 2005-08-02 | The Babcock & Wilcox Company | Flue gas desulfurization system with a stepped tray |
| CN2582724Y (en) * | 2002-12-09 | 2003-10-29 | 哈尔滨电站设备成套设计研究所 | Twing cyclone impact type cyclone plate exhaust gas purifying device |
| US20050280169A1 (en) * | 2004-06-21 | 2005-12-22 | China Petroleum & Chemical Corporation | Gas-liquid contact tray with fixed valves for mass transfer |
| CN101844053B (en) * | 2010-05-10 | 2013-06-12 | 重庆佳玛机械制造有限公司 | Spiral-flow type fluidized bed coater |
| CN202951399U (en) * | 2012-12-10 | 2013-05-29 | 吉林省飞龙环保工程有限公司 | Magnesium oxide process desulfurization system |
| CN103961993A (en) * | 2014-05-15 | 2014-08-06 | 中冶赛迪工程技术股份有限公司 | Gas flow equalizing device of spraying tower |
| CN204121945U (en) * | 2014-09-23 | 2015-01-28 | 浙江恒业成有机硅有限公司 | A kind of pickling tower |
| CN206008392U (en) * | 2016-08-31 | 2017-03-15 | 贵阳铝镁设计研究院有限公司 | The formula that crosses desulfurization is equipped |
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| CN106268189A (en) | 2017-01-04 |
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