CN207680350U - A kind of paper mill drying portion exhaust gas takes off white deodorization circular integration equipment - Google Patents
A kind of paper mill drying portion exhaust gas takes off white deodorization circular integration equipment Download PDFInfo
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- CN207680350U CN207680350U CN201721500404.2U CN201721500404U CN207680350U CN 207680350 U CN207680350 U CN 207680350U CN 201721500404 U CN201721500404 U CN 201721500404U CN 207680350 U CN207680350 U CN 207680350U
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- exhaust gas
- spray
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- deodorization
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Abstract
The utility model discloses a kind of paper mill drying portion exhaust gas to take off white deodorization circular integration equipment, including centrifugal blower, spray heat exchange columns, water circulating pump, automatic medicament feeding system, electric-control system and waste gas circulation recovery system.It includes heat exchanger, three-stage spray system, demisting section and hot arc again to spray heat exchange columns from top to bottom.All environmental protection equipments and workshop drying equipment united opening.In heat exchanger after cooling water heat exchange, recycled after cooling tower cooler；Spray liquid supplements deodorant by automatic medicament feeding system, is recycled through water pump, periodic replacement；For exhaust gas after demisting section removes droplet, being heated by reheating section reduces relative humidity, qualified discharge.It is equipped with waste gas circulation recovery system at the top of spray column, sends exhaust gas section up to standard or whole back to paper machine closed air hood, utilizes waste heat dry paper.The utility model can not only purify the white haze generated after exhaust gas, removal high temperature and humidity exhaust gas discharge, and can carry out paper drying using outlet exhaust waste heat.
Description
Technical field
The utility model belongs to waste gas purification and takes off white apparatus field, and in particular to a kind of paper mill drying portion exhaust gas is de- to be removed in vain
Smelly circular integration equipment.
Background technology
As China requires industrial gas emission increasingly strict, a large amount of original emission-control equipments of enterprise need to carry out
Upgrading.The higher exhaust gas of big amount temperature, including ammonia, hydrogen sulfide, methyl mercaptan, short chain are generated in paper production drying course
The odor pollutants such as aliphatic acid.Most enterprise is by foul waste gas direct emission at present.Due to containing a large amount of vapor in exhaust gas, when
It is easy condensation when temperature is relatively low, in discharge process and generates white haze phenomenon, forms visual pollution.
Patent CN205914009U discloses a papermaking exhaust treating purifier, is effectively removed using spray equipment useless
Odor pollutant in gas is used in combination water collection device to remove most steam.However water collection device keeps the steam in exhaust gas cold by cooling
Solidifying, when winter, outdoor temperature was relatively low, saturation exhaust gas further cools down, and still will appear white haze phenomenon.
When middle low temperature saturation exhaust gas is heated, its diffusion velocity can not only be increased, and exhaust gas relative humidity can be reduced, make its
It is not easy condensation under the conditions of winter low temperature and forms white haze.By heating purified exhaust gas, exhaust gas can be solved and caused regarding pollution
Problem.Purified high-temp waste gas also can reuse, as hot dry wind be reused for paper drying.
Invention content
Utility model aims to solve white haze occur in paper mill drying portion exhaust air deodorization and discharge process
Problem, and a kind of paper mill drying portion exhaust gas is provided and takes off white deodorization circular integration equipment, specific technical solution is as follows：
A kind of paper mill drying portion exhaust gas takes off white deodorization circular integration equipment, including centrifugal blower, spray heat exchange columns, follows
Ring water pump, automatic medicament feeding system, electric-control system and waste gas circulation recovery system, spray heat exchange columns from top to bottom include heat exchanger,
Three-stage spray system, demisting section and hot arc again are equipped with waste gas circulation recovery system at the top of heat exchange columns, can be according to actual environment temperature
Degree is needed to select the start and stop of reheating section and exhaust gas evacuation or be recycled.All environmental protection equipments and workshop drying equipment synchronous locking,
Deodorant is quantified and is sent into spray liquid by medicine system automatically.Control system is by controlling solenoid valve and electronic valve regulation shower water
With in bringing-up section steam flow.
Preferably, centrifugal blower shell and impeller are made of 304 stainless steels, prevents steam in exhaust gas, acidity and have
Machine ingredient causes to corrode to wind turbine.
Preferably, spray heat exchange tower bottom heat exchanger accesses cooling water, followed after cooling tower cooler after cooling water heat exchange
Ring uses；Deodorant is supplemented by automatic medicament feeding system in spray liquid, is recycled through water pump, and is periodically discharged more by sewage draining exit
It changes.
Preferably, the S types that demisting section selects 304 stainless steels to make, which tear plate demister open, removes the water mist that spray generates.
Preferably, it is that one section of paper machine produces that reheating section, which selects the two-period form fin reheater that 304 stainless steels make, heat source,
Line indirect steam, two sections of fresh high-temperature steams when winter temperature is relatively low, opens fin reheater and heat exhaust gas, removing may give birth to
At white haze.
Preferably, reheating section top is equipped with the spray nozzle of cleaning, for cleaning, hot arc and demisting section may produce again
Raw dirt.
Preferably, thief hatch is equipped in exhaust tube, for its ingredient of discharge exhaust gas sample detecting.
Preferably, being equipped with threeway and motor-driven valve in exhaust tube, side is equipped with ventilation shaft, is automatically adjusted with electric-control system
Motor-driven valve by purified heating exhaust gas section or all imports paper machine gas hood and dries paper, carries out UTILIZATION OF VESIDUAL HEAT IN.
Advantageous effect
The utility model has an advantageous effect in that compared with prior art：
1) it utilizes demisting section to be removed to the water mist generated will be sprayed, and saturation exhaust gas is reheated by fin reheater,
Its relative humidity is reduced, the white haze that removal high-temp waste gas is generated in winter low temperature environment is eliminated and regards pollution.
2) waste gas circulation recovery system is added, exhaust gas up to standard paper machine gas hood can be returned and recycled, make full use of exhaust gas
Paper is dried in waste heat.
3) the utility model collects the functions such as deodorization, Tuo Bai and waste gas circulation in same equipment, compact-sized, floor space
It is small, it is with good economic efficiency.
Description of the drawings
Fig. 1 is the front view that paper mill drying provided by the utility model portion exhaust gas takes off white deodorization circular integration equipment；
Fig. 2 is dryer sectional view in paper mill provided by the utility model；
In figure：Centrifugal blower 1 sprays heat exchange columns 2, water circulating pump 3, automatic feeding system 4, electric-control system 5, waste gas circulation
Recovery system 6, heat exchanger 7, spray nozzle 8, demisting section 9, reheating section 10, cooling water inlet 11, steam inlet 12, cleaning sprayer
13, thief hatch 14, condensed steam outlet 15, blowdown water outlet 16, solenoid valve 17, motor-driven valve 18, exhaust tube 19, threeway 20, baking
Cylinder 21, paper bowl 22, paper machine gas hood 23, air inlet 24, air outlet 25, fresh air 26, cycle gas 27.
Specific implementation mode
The utility model is described in further details below in conjunction with description of the drawings and specific implementation mode：
As shown in Figure 1, a kind of paper mill drying portion exhaust gas takes off white deodorization circular integration equipment, including centrifugal blower 1, spray
Drench heat exchange columns 2, water circulating pump 3, automatic medicament feeding system 4, electric-control system 5 and waste gas circulation recovery system 6, spray heat exchange columns 2 from
Under to it is upper include heat exchanger 7, three-stage spray system 8, demisting section 9 and reheating section 10, spray heat exchange columns 2 top is followed equipped with exhaust gas
Ring recovery system 6 can select exhaust gas evacuation according to actual needs or recycle.1 shell of centrifugal blower and impeller, spray heat exchange
Tower body 2, heat exchanger 7, spray nozzle 8, demisting section 9 and reheating section 10 are all made of stainless steel making, prevent steam in exhaust gas, have
Corrosive gas generates corrosion to equipment.All environmental protection equipments and workshop drying equipment synchronous locking, medicine system 4 will be removed automatically
Smelly dose is added in shower water.Electric-control system 5 adjusts spray liquid and reheating section steam by controlling solenoid valve 17 and motor-driven valve 18
Flow.Exhaust gas enters spray heat exchange columns 2 by centrifugal blower 1, and fibrous, graininess therein is removed after being sprayed by three-stage
Substance and stench.Spray liquid enters spray column bottom after absorbing heat energy from waste gas, and bottom heat exchanger 7 accesses the cooling that enterprise provides
Water 11 exchanges heat with spray liquid liquid liquid, and shower water is recycled by water pump 3, and is periodically discharged and is replaced by sewage draining exit 16, cooling
It is recycled after cooling tower cooler after water is heated.Demisting section 9 selects S types to tear plate demister open, removes spraying cooling institute in exhaust gas
The water mist of generation.Reheating section 10 select two-period form fin reheater, heat source be one section of production line of paper machine indirect steam, two sections it is fresh
High-temperature vapour, when winter temperature is relatively low, reheater contactless type heats exhaust gas, reduces the relative humidity of exhaust gas, effectively prevent
Hydrogenesis in exhaust gas forms white haze phenomenon, prevents visual pollution.Cleaning sprayer 13 is equipped with above reheating section, for regular
Reheating section 10 and demisting section 9 are cleaned, prevents the dirt being likely to form from reducing heat exchange and demisting efficiency.Sampling is equipped in exhaust tube 19
Mouth 14, for exhaust gas constituents sample detecting, ensureing emission compliance.Threeway 20 and motor-driven valve are equipped in exhaust tube 19, side is set
There is ventilation shaft to lead to paper machine gas hood, can according to actual needs, by controlling motor-driven valve, setting exhaust tube is switched to by emptying pattern
High-temp waste gas is partly or entirely sent back to paper machine gas hood 23 and recycled by circulation pattern, is used for dry paper.Cycle gas is from original
There is both sides air inlet to be mixed into paper machine drying portion with fresh air, is discharged via centrifugal blower 1 by original top outlet inlet.
Above description is explained in detail to the utility model, is not intended to limit the utility model, other are not departed from
The utility model principle and range and be changed with improved technical solution, be all contained in scope of protection of the utility model.
Claims (8)
1. a kind of paper mill drying portion exhaust gas takes off white deodorization circular integration equipment, including centrifugal blower (1), spray heat exchange columns
(2), water circulating pump (3) and electric-control system (5), it is characterised in that：Further include automatic medicament feeding system (4), waste gas circulation recycling system
It unites (6), spray heat exchange columns include heat exchanger (7), three-stage spray system (8), demisting section (9) and hot arc again from top to bottom
(10), it is equipped with waste gas circulation recovery system (6) at the top of spray heat exchange columns, can be needed that hot arc is selected again to open according to actual environment temperature
Stop and exhaust gas evacuation or recycles；All environmental protection equipments and workshop drying equipment synchronous locking, automatic medicament feeding system (4) are automatic
Deodorant is added in spray liquid, electric-control system (5) by control solenoid valve (17) and motor-driven valve (18) adjust spray flux with
Reheating section hot steam flow.
2. paper mill drying according to claim 1 portion exhaust gas takes off white deodorization circular integration equipment, it is characterised in that：From
Heart wind turbine (1) shell and impeller, spray heat exchange columns (2), heat exchanger (7), three-stage spray system (8), demisting section (9) and reheating
Section (10) is all made of stainless steel making.
3. paper mill drying according to claim 1 portion exhaust gas takes off white deodorization circular integration equipment, it is characterised in that：Spray
Leaching heat exchange tower bottom heat exchanger (7) accesses cooling water, exchanges heat with spray liquid liquid liquid, and spray liquid recycles profit by water circulating pump (3)
With, and be periodically discharged and replaced by sewage draining exit (16), it is recycled after cooling tower cooler after cooling water heat exchange.
4. paper mill drying according to claim 1 portion exhaust gas takes off white deodorization circular integration equipment, it is characterised in that：It removes
Mist section (9) selects S types to tear plate demister open.
5. paper mill drying according to claim 4 portion exhaust gas takes off white deodorization circular integration equipment, it is characterised in that：Again
It is one section of production line of paper machine indirect steam, two sections of fresh high-temperature steams that hot arc (10), which selects two-period form fin reheater, heat source,.
6. paper mill drying according to claim 5 portion exhaust gas takes off white deodorization circular integration equipment, it is characterised in that：Again
Hot arc top is equipped with the spray nozzle (13) of cleaning.
7. paper mill drying according to claim 1 portion exhaust gas takes off white deodorization circular integration equipment, it is characterised in that：Row
Thief hatch (14) is equipped in inflator (19).
8. paper mill drying according to claim 1 portion exhaust gas takes off white deodorization circular integration equipment, it is characterised in that：Row
Threeway (20) and motor-driven valve are equipped in inflator (19), side is equipped with ventilation shaft and leads to 23 both sides air inlet 24 of paper machine gas hood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721500404.2U CN207680350U (en) | 2017-11-13 | 2017-11-13 | A kind of paper mill drying portion exhaust gas takes off white deodorization circular integration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721500404.2U CN207680350U (en) | 2017-11-13 | 2017-11-13 | A kind of paper mill drying portion exhaust gas takes off white deodorization circular integration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207680350U true CN207680350U (en) | 2018-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721500404.2U Active CN207680350U (en) | 2017-11-13 | 2017-11-13 | A kind of paper mill drying portion exhaust gas takes off white deodorization circular integration equipment |
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| CN (1) | CN207680350U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108926952A (en) * | 2018-09-11 | 2018-12-04 | 福建南方路面机械有限公司 | A kind of emission-control equipment of bituminous mixing plant |
| CN110791992A (en) * | 2019-11-06 | 2020-02-14 | 江苏科技大学 | Paper making drying part tail gas whitening device and working method thereof |
-
2017
- 2017-11-13 CN CN201721500404.2U patent/CN207680350U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108926952A (en) * | 2018-09-11 | 2018-12-04 | 福建南方路面机械有限公司 | A kind of emission-control equipment of bituminous mixing plant |
| CN110791992A (en) * | 2019-11-06 | 2020-02-14 | 江苏科技大学 | Paper making drying part tail gas whitening device and working method thereof |
| CN110791992B (en) * | 2019-11-06 | 2021-04-06 | 江苏科技大学 | Paper making drying part tail gas whitening device and working method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 311200 4th floor, building 3, No. 3089, nanxiu Road, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: Blue Sky Environmental Technology Co.,Ltd. Address before: 311200 4th floor, building 3, No. 3089, nanxiu Road, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU BIKONG ENVIRONMENT TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |