CN113415845A - Spray drying tower for desulfurization waste water - Google Patents
Spray drying tower for desulfurization waste water Download PDFInfo
- Publication number
- CN113415845A CN113415845A CN202110731597.7A CN202110731597A CN113415845A CN 113415845 A CN113415845 A CN 113415845A CN 202110731597 A CN202110731597 A CN 202110731597A CN 113415845 A CN113415845 A CN 113415845A
- Authority
- CN
- China
- Prior art keywords
- drying tower
- flue gas
- conical
- tower body
- gas inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
- C02F1/12—Spray evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Treating Waste Gases (AREA)
Abstract
The application discloses desulfurization is spray drying tower for waste water includes: the device comprises a flue gas inlet, a conical distributor, a guide plate, a hollow drying tower body, an atomizer, a feed opening and a flue gas outlet; the flue gas inlet is arranged at the top of the drying tower body and is connected with the conical distributor; the conical distributor is embedded in the hollow drying tower body; the guide plate is arranged on the conical hopper of the conical distributor and is used for uniformly dividing the flue gas entering the conical distributor from the flue gas inlet into two streams; the atomizer is arranged at the bottom of the conical distributor and is used for atomizing the wastewater liquid; the feed opening sets up on the lower lateral wall of drying tower body, and the exhanst gas outlet sets up in the bottom of drying tower body. The technical problem that the existing spray drying tower is poor in atomization and evaporation effects due to the fact that a flow field is not uniformly distributed due to a flue gas inlet is solved.
Description
Technical Field
The application relates to the technical field of drying equipment, in particular to a spray drying tower for desulfurization wastewater.
Background
At present, the following measures are mainly taken for reducing SOX emission in a large power station: the process comprises coal dust desulfurization treatment before coal dust combustion and flue gas desulfurization treatment after combustion, wherein the flue gas desulfurization treatment mainly comprises a limestone-gypsum wet desulfurization process, and the process can effectively reduce SOX emission in flue gas. However, the circulating liquid in wet desulfurization will continuously accumulate dust, heavy metal elements and chloride ions to form waste liquid with high pollution hazard degree, the waste liquid needs to be treated by innocent treatment, and the current innocent treatment aiming at the waste liquid mainly comprises a chemical precipitation method, an evaporative crystallization technology, a main flue evaporation technology, a bypass flue evaporation technology and a rotary spray drying technology, wherein the rotary spray drying technology is gradually adopted in recent years, and the main flow is as follows: draw forth partly flue gas from SCR denitration reactor and air heater (GGH), with the desulfurization waste liquid intensive mixing after spray drying tower atomizing, utilize the flue gas waste heat to gasify to make dust, inorganic salt etc. in the waste liquid return to the flue gas, and along with the flue gas enters into Electrostatic Precipitator (EP), make matters such as heavy metal and chloridion follow the dust and be caught by the dust remover together, realize "innocent treatment". Meanwhile, due to the spraying of the desulfurization wastewater, the relative humidity of the flue gas is increased, the specific resistance of the fly ash is reduced, and the back corona of high specific resistance dust can be prevented and weakened, so that the dust removal efficiency of the electric dust remover can be improved.
In the operation of a power station, most of the existing spray drying towers adopt volute type flue gas inlets to obtain enough rotational flow strength, but the flue gas inlets can cause uneven distribution of a flow field and poor atomization and evaporation effects.
Disclosure of Invention
An object of the application is to provide a spray drying tower for desulfurization waste water for solve current spray drying tower because flue gas inlet can cause the flow field uneven distribution, lead to the relatively poor technical problem of atomization evaporation effect.
In view of this, the present application provides a spray drying tower for desulfurization waste water, including: the device comprises a flue gas inlet, a conical distributor, a guide plate, a hollow drying tower body, an atomizer, a feed opening and a flue gas outlet;
the flue gas inlet is arranged at the top of the drying tower body and is connected with the conical distributor;
the conical distributor is embedded in the hollow drying tower body;
the guide plate is arranged on a conical hopper of the conical distributor and is used for uniformly dividing the flue gas entering the conical distributor from the flue gas inlet into two streams;
the atomizer is arranged at the bottom of the conical distributor and is used for atomizing wastewater liquid;
the feed opening set up in on the lower lateral wall of drying tower body, the exhanst gas outlet set up in the bottom of drying tower body.
Optionally, the baffle is a sheet.
Optionally, the flue gas inlet is a volute type flue gas inlet.
Optionally, the atomizer is a high speed rotating centrifugal atomizer.
Optionally, the particle size of the liquid drops atomized by the atomizer is 60 μm.
Optionally, the drying tower body is composed of a hollow cylinder and a hollow cone, and the lower bottom surface of the cylinder is connected with the bottom surface of the cone.
Compared with the prior art, the embodiment of the application has the advantages that:
in the embodiment of this application, provide a desulfurization is spray drying tower for waste water, include: the device comprises a flue gas inlet, a conical distributor, a guide plate, a hollow drying tower body, an atomizer, a feed opening and a flue gas outlet; the flue gas inlet is arranged at the top of the drying tower body and is connected with the conical distributor; the conical distributor is embedded in the hollow drying tower body; the guide plate is arranged on the conical hopper of the conical distributor and is used for uniformly dividing the flue gas entering the conical distributor from the flue gas inlet into two streams; the atomizer is arranged at the bottom of the conical distributor and is used for atomizing the wastewater liquid; the feed opening sets up on the lower lateral wall of drying tower body, and the exhanst gas outlet sets up in the bottom of drying tower body.
The application provides a spray drying tower for desulfurization waste water is through arranging the guide plate on the distributor awl is fought for the flow field keeps the symmetry, has improved flow field evenly distributed, is favorable to improving atomizing evaporation performance, and then reduces atomizing comprehensive cost. Thereby solved current spray drying tower because the flue gas import can cause the flow field to distribute unevenly, lead to the relatively poor technical problem of atomization evaporation effect.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a spray drying tower for desulfurization waste water according to an embodiment of the present disclosure;
fig. 2 is a top view of a spray drying tower for desulfurization waste water according to an embodiment of the present disclosure.
Reference numbers: 1. a flue gas inlet; 2. a conical distributor; 3. a baffle; 4. a drying tower body; 5. an atomizer; 6. a feeding port; 7. and a flue gas outlet.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1 and 2, the present application provides a spray drying tower for desulfurization waste water, comprising: the device comprises a flue gas inlet 1, a conical distributor 2, a guide plate 3, a hollow drying tower body 4, an atomizer 5, a feed opening 6 and a flue gas outlet 7.
The flue gas inlet 1 is arranged at the top of the drying tower body 4 and is connected with the conical distributor 2;
the conical distributor 2 is embedded in the hollow drying tower body 4;
the guide plate 3 is arranged on a conical hopper of the conical distributor 2 and is used for uniformly dividing the flue gas entering the conical distributor 2 from the flue gas inlet 1 into two streams;
the atomizer 5 is arranged at the bottom of the conical distributor 2 and is used for atomizing wastewater liquid;
the feed opening 6 sets up on the lower lateral wall of drying tower body 4, and exhanst gas outlet 7 sets up in the bottom of drying tower body 4.
The application provides a desulfurization is spray drying tower for waste water, the flue gas passes through 1 entering distributor of flue gas inlet, 3 branches of guide plate on 2 awl buckets of toper distributor are done two strands of fluids via arranging, even blowout, with 5 atomizing through the atomizer, the waste water droplet that sprays and go out fully contacts, moisture in the droplet volatilizees rapidly, salt in the waste water is separated out by the drying, partly mix into in the dust of former flue gas, the part flows into the bottom of drying tower, the flue gas after the processing enters into in Electrostatic Precipitator (EP), make matters such as heavy metal and chloride ion follow the dust and are caught by the dust remover together, realize "innoxious" processing. According to the numerical simulation results, the spray drying tower of the application reduces the complete evaporation time of liquid drops by about 29% compared with the prior art. Thereby solved current spray drying tower because the flue gas import can cause the flow field to distribute unevenly, lead to the relatively poor technical problem of atomization evaporation effect.
Further, in an alternative embodiment, the baffles of the present application are thin plates.
It should be noted that the deflector of the present embodiment is made of a thin plate, and besides the thin plate, a person skilled in the art may select other types of deflectors as long as the flue gas entering the conical distributor from the flue gas inlet can be uniformly divided into two flows, which is not limited herein.
Further, in an alternative embodiment, the flue gas inlet of the present application is a volute type flue gas inlet.
Further, in an alternative embodiment, the atomizer of the present application is a high speed rotary centrifugal atomizer.
It will be appreciated that the role of the atomiser is to atomise waste liquids with waste liquids. So that the flue gas is uniformly contacted with the waste water liquid, and the high-speed rotating centrifugal atomizer is preferred in the application.
Further, in an alternative embodiment, the particle size of the atomized droplets of the atomizer of the present application is 60 μm.
It should be noted that, as a result of numerical simulation by the applicant's experiment, the optimum atomized particle size of the liquid droplet is 60 μm, and therefore, the particle size of the liquid droplet atomized by the atomizer is set to 60 μm in the present application.
Further, in an alternative embodiment mode, the drying tower body of the present application is composed of a hollow cylinder and a hollow cone, and the lower bottom surface of the cylinder is connected with the bottom surface of the cone.
It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" for describing an association relationship of associated objects, indicating that there may be three relationships, e.g., "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (6)
1. A spray drying tower for desulfurization waste water, characterized by comprising: the device comprises a flue gas inlet, a conical distributor, a guide plate, a hollow drying tower body, an atomizer, a feed opening and a flue gas outlet;
the flue gas inlet is arranged at the top of the drying tower body and is connected with the conical distributor;
the conical distributor is embedded in the hollow drying tower body;
the guide plate is arranged on a conical hopper of the conical distributor and is used for uniformly dividing the flue gas entering the conical distributor from the flue gas inlet into two streams;
the atomizer is arranged at the bottom of the conical distributor and is used for atomizing wastewater liquid;
the feed opening set up in on the lower lateral wall of drying tower body, the exhanst gas outlet set up in the bottom of drying tower body.
2. The spray drying tower for desulfurization waste water according to claim 1, wherein the guide plate is a thin plate.
3. The spray drying tower for desulfurization waste water according to claim 1, wherein the flue gas inlet is a volute type flue gas inlet.
4. The spray drying tower for desulfurization waste water according to claim 1, wherein the atomizer is a high-speed rotation centrifugal atomizer.
5. The spray drying tower for desulfurization waste water according to claim 1, wherein the particle diameter of the liquid droplets atomized by the atomizer is 60 μm.
6. The spray drying tower for desulfurization waste water according to claim 1, wherein the drying tower body is composed of a hollow cylindrical body and a hollow conical body, and the lower bottom surface of the cylindrical body is connected with the bottom surface of the conical body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110731597.7A CN113415845A (en) | 2021-06-29 | 2021-06-29 | Spray drying tower for desulfurization waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110731597.7A CN113415845A (en) | 2021-06-29 | 2021-06-29 | Spray drying tower for desulfurization waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113415845A true CN113415845A (en) | 2021-09-21 |
Family
ID=77717236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110731597.7A Pending CN113415845A (en) | 2021-06-29 | 2021-06-29 | Spray drying tower for desulfurization waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113415845A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114288690A (en) * | 2022-01-30 | 2022-04-08 | 江阴铠乐丰环境工程科技有限公司 | Spray drying tower with high-temperature flue gas for treating high-salinity high-organic-matter wastewater |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205550011U (en) * | 2016-04-13 | 2016-09-07 | 中冶焦耐工程技术有限公司 | Be used for desulfurated flue gas distributor of rotary atomization |
| CN207511866U (en) * | 2017-11-14 | 2018-06-19 | 江苏瑞帆环保工程股份有限公司 | A kind of device of desulfurization wastewater zero-emission using rotating spraying mode |
| RU2659057C1 (en) * | 2017-11-02 | 2018-06-27 | Олег Савельевич Кочетов | Gas scrubber |
| CN112374565A (en) * | 2020-10-28 | 2021-02-19 | 浙江天地环保科技股份有限公司 | Novel flue gas distributor for rotary spray wastewater drying |
-
2021
- 2021-06-29 CN CN202110731597.7A patent/CN113415845A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205550011U (en) * | 2016-04-13 | 2016-09-07 | 中冶焦耐工程技术有限公司 | Be used for desulfurated flue gas distributor of rotary atomization |
| RU2659057C1 (en) * | 2017-11-02 | 2018-06-27 | Олег Савельевич Кочетов | Gas scrubber |
| CN207511866U (en) * | 2017-11-14 | 2018-06-19 | 江苏瑞帆环保工程股份有限公司 | A kind of device of desulfurization wastewater zero-emission using rotating spraying mode |
| CN112374565A (en) * | 2020-10-28 | 2021-02-19 | 浙江天地环保科技股份有限公司 | Novel flue gas distributor for rotary spray wastewater drying |
Non-Patent Citations (1)
| Title |
|---|
| 胡荫平等编: "《电站锅炉手册》", 30 April 2005, 中国电力出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114288690A (en) * | 2022-01-30 | 2022-04-08 | 江阴铠乐丰环境工程科技有限公司 | Spray drying tower with high-temperature flue gas for treating high-salinity high-organic-matter wastewater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106395952B (en) | A kind of desulfurization wastewater and hot fume multi-point atomizing vapo(u)rization system | |
| EP3626326A1 (en) | System and method for removing harmful gas in discharged cleaning solution of exhaust gas treatment apparatus | |
| US9403123B2 (en) | High rotational momentum disperser and use | |
| CN104399367B (en) | A kind of flue washing device with scaling shape orifice plate | |
| CN104150552A (en) | Distillation drying tower for treating desulfurized waste water in thermal power plant | |
| CN212269521U (en) | Device for concentrating wastewater by using flue gas waste heat | |
| CN113415845A (en) | Spray drying tower for desulfurization waste water | |
| CN1032407C (en) | Low pressure drop dry scrubber | |
| CN108557930B (en) | The method comprises the following steps of: waste water from power plants processing device and method | |
| CN218795001U (en) | Pervaporation tempering tower used in front of electric tar precipitator | |
| CN112058022B (en) | Supergravity flue gas purification device | |
| WO2024051629A1 (en) | Atomization and corona-based oil fume waste gas purification apparatus and purification method | |
| RU113817U1 (en) | HUMIDIFIER AND HUMIDIFIER CAMERA WITH IT | |
| CN113479960A (en) | Spray drying tower | |
| CN113443673A (en) | Spray drying tower | |
| CN110975529A (en) | Independently adjust formula smoke desulphurization unit based on air current rotating | |
| CN111410253B (en) | Desulfurization wastewater concentrated solution atomization device and atomization anti-blocking method | |
| CN109987771B (en) | Desulfurization wastewater treatment method and equipment | |
| CN211004655U (en) | Desulfurization waste water drying device | |
| CN212315613U (en) | Reduce desulfurization waste water concentrate processing apparatus that shower nozzle blockked up | |
| CN203281204U (en) | Spray dryer absorption equipment comprising cavity with flat bottom | |
| CN113443674A (en) | Spray drying tower | |
| CN207158830U (en) | A kind of vapourizing furnace for wet flue gas desulfurization waste water evaporation | |
| CN210332233U (en) | Novel high-efficient foul smell clean system | |
| CN209173731U (en) | The new and effective spray Pneumatic emulsifying desulfurization of one kind, dust-extraction unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210921 |