CN207056195U - Paper industry multi-stage spray formula demisting takes off white system - Google Patents
Paper industry multi-stage spray formula demisting takes off white system Download PDFInfo
- Publication number
- CN207056195U CN207056195U CN201720528644.7U CN201720528644U CN207056195U CN 207056195 U CN207056195 U CN 207056195U CN 201720528644 U CN201720528644 U CN 201720528644U CN 207056195 U CN207056195 U CN 207056195U
- Authority
- CN
- China
- Prior art keywords
- spray column
- spray
- stage
- air duct
- main air
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of paper industry multi-stage spray formula demisting to take off white system, including main air duct, spray column, demister, fresh water pump and cistern, described main air duct is connected to spray column side, described fresh water pump is connected to spray column upper end, demister and two-stage filler are sequentially provided with described spray column from top to bottom, spray tower bottom and be provided with outlet, cistern is connected to by pipeline.The utility model carries out one-level, two level and three-level cooling successively by the space provided using main air duct, tower reactor and Ta Nei and gas residence time, in main air duct, tower reactor and Ta Nei, strengthens gas-liquid contact, ensures higher heat transfer area, realizes that echelon cools；Demister above tower reactor, to reduce entrained liquid, while improve the heat transfer efficiency of filler；The utility model effectively reduces the saturated water amount in tail gas, while effectively removes water droplet codominance water, most efficiently eliminates white cigarette, while remove stink.
Description
Technical field
It the utility model is related to a kind of demisting and take off white device, be that a kind of paper industry multi-stage spray formula demisting is de- white specifically
System.
Background technology
Entrainment causes exhaust port to have a large amount of white cigarettes, to environment compared with juicy in the high-temperature tail gas of paper machine room discharge
Pollution is brought, and stink is obvious in moisture, causes flue gas to stink, and deodorization also seems particularly necessary.
Pinpoint and sampling analysis is carried out to the flue gas of paper mill discharge, the data for drawing flue gas composition are：
First, waste gas
1st, form：Empty gas and water
2nd, flow：470000 Nm3/h
3rd, parameter：Temperature 45 C, water capacity 6.6%, gas phase dynamic pressure 29Pa, static pressure 260Pa
2nd, water
1st, source：River and cistern.
2nd, parameter：10 DEG C of temperature (winter, summer put aside).
The class of moisture two in air, gaseous vapor and dominant droplet.Vaporous water under saturated humidity in air steams
Tolerance reaches the upper limit, but changes with temperature；And the carrying amount of dominant droplet is then with liquid-drop diameter, gas phase flow velocity etc. in air
The change of parameter and change.The saturated humidity of air increases with the increase of temperature, and therefore, saturated moist air is in temperature-fall period
Condensed water generation is had, and discharges more heat.45 DEG C of row's discharge temperature of paper company, water capacity 6.6%, nearly all for
Gaseous state vapor, therefore it is the saturated water amount reduced by cooling in tail gas to eliminate white cigarette the best way, while effectively remove water
Drip codominance water.
Flue gas takes off white method and mainly has condensing heat-exchange method, increases the guiding device method that set in chimney+chimney, electric demisting at present
Method, ultrasonic wave demisting method, electric demisting method defogging effect are undesirable.Because gas heat transfer coefficient is small, using dividing wall type heat exchanger then
Required heat exchange area is big, and investment and floor space are big；It is big to increase the investment set in chimney+chimney needed for guiding device；Electricity removes
Mist method and ultrasonic wave demisting method can only remove the dominant water droplet in gas, and equipment investment is big, power consumption is high.
Utility model content
Purpose of utility model：The purpose of this utility model, which is to provide, a kind of can remove white cigarette and the paper industry of deodorization is multistage
Fountain demisting takes off white system.
Technical scheme：The utility model is realized using following technological means：A kind of paper industry multi-stage spray formula demisting takes off
White system, including main air duct, spray column, demister, fresh water pump and cistern, described main air duct are connected to spray column side
Face, described fresh water pump are connected to spray column upper end, demister and two-stage are sequentially provided with from top to bottom in described spray column
Filler, spray tower bottom are provided with outlet, cistern are connected to by pipeline.
Preferably, described spray column upper end is also connected with dioxygen water circulation system.The situation of deodorization can only needed
Under, individually open, realize the single Sprayer Circulation of hydrogen peroxide.
Preferably, described dioxygen water circulation system is formed by connecting by dioxygen water pot and dioxygen water pump, described dioxygen
Water pot is connected to spray tower bottom.
Preferably, being additionally provided with spiral nozzle, described dioxygen water pot is connected to spiral nozzle, for being sprayed into spray column
Penetrate hydrogen peroxide.
Preferably, described cistern is provided with two outlets, one of outlet is connected to aerial cooler, and it passes through
Water circulating pump is connected to spray column and main air duct forms circulation loop, continues as two level and three-level cooling provides low-temperature receiver；Another
Outlet is connected to troughing, reuses.
Preferably, described two-stage filler is PVC hexagon cellular fillers.Increase heat exchange area, when increasing flue gas stop
Between.
The utility model is by the space provided using main air duct, tower reactor and Ta Nei and gas residence time, in main air duct, tower
Kettle and Ta Nei carry out one-level, two level and three-level cooling successively, strengthen gas-liquid contact, ensure higher heat transfer area, realize echelon
Cooling；Demister above tower reactor, to reduce entrained liquid, while improve the heat transfer efficiency of filler；The utility model effectively subtracts
Saturated water amount in few tail gas, while water droplet codominance water is effectively removed, white cigarette is most efficiently eliminated, while stink is removed, and
Single hydrogen peroxide Sprayer Circulation can be realized.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Reference：1- main air ducts, 2- spray columns, 3- demisters, the fresh water pumps of 4-, 5- cisterns, 6- two-stage fillers, 7-
Dioxygen water pot, 8- dioxygen water pumps, 9- aerial coolers, 10- water circulating pumps.
Embodiment
The utility model is described in further detail with reference to Figure of description：
Such as figure, a kind of paper industry multi-stage spray formula demisting takes off white system, including main air duct 1, spray column 2, demister 3, fresh
Water pump 4 and cistern 5, main air duct 1 are connected to the side of spray column 2, and fresh water pump 4 is connected to the upper end of spray column 2, in spray column 2
Demister 3 and two-stage filler 6 are sequentially provided with from top to bottom, and the bottom of spray column 2 is provided with outlet, cistern 5 is connected to by pipeline.
The upper end of spray column 2 is also connected with dioxygen water circulation system, specifically, is formed by connecting by dioxygen water pot 7 and dioxygen water pump 8, dioxygen
Water pot 7 is connected to the bottom of spray column 2, and hydrogen peroxide can flow into dioxygen water pipe from bottom and realize circulation, and dioxygen water pot 7 is connected to spiral shell
Churning mouth, for spraying dioxygen water deodoring into spray column 2.
Cistern 5 is provided with two outlets, and one of outlet is connected to aerial cooler 9, and it is connected by water circulating pump 10
Spray column 2 is connected to, forms circulation loop, is cooled down to two level three-level and low-temperature receiver is provided；Another outlet is connected to troughing.
Two-stage filler 6 is specially PVC hexagon cellulars filler or other commercially available conventional fillers in the utility model.
Operation principle：
45 DEG C discharge gas of the paper plant by the pretreatment of gas-gas heat exchanger (not shown) enter main air duct, have in main air duct a small amount of
Water, one-level cooling is carried out, is cooled to 42 DEG C；Spray column is entered back into, carries out two level cooling in spray column tower reactor, and further spraying
Three-level cooling (two level cooling is realized by two level filler respectively) is carried out in tower, is cooled to 32 DEG C (generally 25 DEG C) below (containing wet
3.1%) amount, eventually passes through the fine droplet in demister trapping discharge flue gas, drains into air.
Fresh river water is pumped in spray column through fresh water, provides low-temperature receiver to discharge the three-level of gas and two level cooling, then
Flow to cistern, be pumped up, into aerial cooler, main air duct and tower reactor being entered after cooling, for one-level and two level cooling provide it is cold
Source.The water of tower reactor flow to cistern, and a water part for cistern is sent into aerial cooler, and another part is expelled to troughing.
Enter whole circulation when de- white system is opened, after dioxygen Water spray to circulate, form substantial amounts of dilute dioxygen
Water, while appropriate hydrogen peroxide need to be added according to the smell situation of discharge gas.When de- white system is not opened, then existing dioxygen is maintained
Water spray state.
Further, it is also possible to according to being actually needed, when only needing deodorization such as summer, then the dioxygen current of tower bottom can will be sprayed
To dioxygen water pot, the single circulated sprinkling of hydrogen peroxide is realized.
The process technology scheme is not required to configure automatic control system, is changed according to produce load, white cigarette removes, discharge gas removes
Smelly being actually needed in different time sections, related process flow and parameter are adjusted manually, compared to the prior art, grasped to simplify
Make, investment reduction.
The four seasons, specific control program was as follows：
Daytime in winter predominantly removes white cigarette and foul smell.Therefore fresh water and circulation can be run, and start hydrogen peroxide
System.Water in spray tower reactor flow to cistern and cooled through aerial cooler, realizes the circulation of whole water system.
Spring, the summer, three season of autumn temperature it is higher, white cigarette unobvious, now predominantly be deodorized.It can turn down or even cut off recirculated water
Cooling system, only it need to start hydrogen peroxide solution system.
The regulation of three of the above operating mode, need to only switch corresponding valve, and regulation process is simple and convenient.
Claims (6)
1. a kind of paper industry multi-stage spray formula demisting takes off white system, it is characterised in that：Including main air duct (1), spray column (2), demisting
Device (3), fresh water pump (4) and cistern (5), described main air duct (1) are connected to spray column (2) side, described fresh water
Pump (4) is connected to spray column (2) upper end, and demister (3) and two-stage filler are sequentially provided with from top to bottom in described spray column (2)
(6), spray column (2) bottom is provided with outlet, and cistern (5) is connected to by pipeline.
2. paper industry multi-stage spray formula demisting as claimed in claim 1 takes off white system, it is characterised in that：Described spray column (2)
Upper end is also connected with dioxygen water circulation system.
3. paper industry multi-stage spray formula demisting as claimed in claim 2 takes off white system, it is characterised in that：Described dioxygen water circulation
System is formed by connecting by dioxygen water pot (7) and dioxygen water pump (8), and described dioxygen water pot (7) is connected to spray column (2) bottom.
4. paper industry multi-stage spray formula demisting as claimed in claim 3 takes off white system, it is characterised in that：It is additionally provided with spiral nozzle,
Described dioxygen water pot (7) is connected to spiral nozzle, for the injection hydrogen peroxide into spray column (2).
5. paper industry multi-stage spray formula demisting as claimed in claim 1 takes off white system, it is characterised in that：Described cistern (5)
Provided with two outlets, one of outlet is connected to aerial cooler (9), and it is connected to spray column by water circulating pump (10)
(2) and main air duct (1) forms circulation loop；Another outlet is connected to troughing.
6. paper industry multi-stage spray formula demisting as claimed in claim 1 takes off white system, it is characterised in that：Described two-stage filler
(6) it is PVC hexagon cellular fillers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720528644.7U CN207056195U (en) | 2017-05-12 | 2017-05-12 | Paper industry multi-stage spray formula demisting takes off white system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720528644.7U CN207056195U (en) | 2017-05-12 | 2017-05-12 | Paper industry multi-stage spray formula demisting takes off white system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207056195U true CN207056195U (en) | 2018-03-02 |
Family
ID=61505565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720528644.7U Active CN207056195U (en) | 2017-05-12 | 2017-05-12 | Paper industry multi-stage spray formula demisting takes off white system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207056195U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109364730A (en) * | 2018-12-17 | 2019-02-22 | 新疆天富集团有限责任公司 | A kind of full working scope wet desulphurization tail gas receipts water eliminating white smoke system and method |
| CN113483349A (en) * | 2021-06-21 | 2021-10-08 | 威海金宏科技有限公司 | Flue gas whitening and moisture recovery process and system based on combination of water cooling and air cooling |
-
2017
- 2017-05-12 CN CN201720528644.7U patent/CN207056195U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109364730A (en) * | 2018-12-17 | 2019-02-22 | 新疆天富集团有限责任公司 | A kind of full working scope wet desulphurization tail gas receipts water eliminating white smoke system and method |
| CN113483349A (en) * | 2021-06-21 | 2021-10-08 | 威海金宏科技有限公司 | Flue gas whitening and moisture recovery process and system based on combination of water cooling and air cooling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108722124B (en) | Integrated system and method for multi-stage de-whitening purification and waste heat recovery of flue gas | |
| CN204301389U (en) | In conjunction with evaporative cooling and mechanically refrigerated power generating plant cooling tower water-saving system | |
| CN106512637A (en) | Device and method for removing white smoke | |
| CN104495966A (en) | Bubble humidification and heat pump cycle coupled sea water desalination system and process method | |
| CN111644031A (en) | Aerobic fermentation system with closed oxygen supply | |
| CN203469768U (en) | Novel high-efficiency and energy-saving air treatment device with two-stage spraying and absorbing system for organic waste gas | |
| CN203561020U (en) | An isothermal humidification device for a medical purifying air handling unit | |
| CN206935061U (en) | A kind of wet desulfurization flue gas processing unit | |
| CN207056195U (en) | Paper industry multi-stage spray formula demisting takes off white system | |
| CN206037754U (en) | Accuse temperature water conservation fog dispersal device | |
| CN107098414A (en) | A kind of the low-temperature evaporation device and its discharge technology of the discharge for the treatment of of Power desulfurization wastewater | |
| CN203577607U (en) | Multilevel high-efficiency waste gas purifying box | |
| CN206001971U (en) | A kind of demisting water collection device used for cooling tower and demisting cooling tower | |
| CN108954577B (en) | Grain depot ventilation dehumidification equipment based on solar building integration and solution dehumidification | |
| CN211119603U (en) | Water replenishing system for indirectly heating heat supply network by using low-temperature waste heat of flue gas | |
| CN106091133A (en) | A kind of air processor and method | |
| CN101816840B (en) | Down air-inlet multistage purification recovery device for ester-containing tail gas | |
| CN204214296U (en) | A kind of multi-joint cooling tower | |
| CN211753907U (en) | Efficient direct contact type condensation system for eliminating white smoke plume by wet desulphurization | |
| CN210993631U (en) | Flue gas dehydration and white smoke elimination system | |
| CN210664028U (en) | Novel environment-friendly evaporative cooler based on microbial deodorization | |
| CN210176893U (en) | Colored smoke plume eliminating device of converter primary dust removing system | |
| CN209060817U (en) | The white system that disappears of phase transformation absorption condensation and peak regulation reheating | |
| CN112050326A (en) | Air conditioning unit for preparing cold air and cold water based on heat pipe-dew point two-stage precooling | |
| CN102260558B (en) | Marsh gas purifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181114 Address after: 10 Floor, A1 Floor, 273 Baixia Road, Qinhuai District, Nanjing City, Jiangsu Province, 210000 Patentee after: NANJING LEAGUER-UNITED TOP HOLDINGS POWER ENERGY-SAVING CO., LTD. Address before: 210000 Baixia Road 273, Qinhuai District, Nanjing City, Jiangsu Province, 10th Floor, Building A1, Belize Science Park, Jiangsu Haiyuan Patentee before: Zhao Zhenlong |
|
| TR01 | Transfer of patent right |