CN108221449A - A kind of paper machine closed hood air draft clean method - Google Patents
A kind of paper machine closed hood air draft clean method Download PDFInfo
- Publication number
- CN108221449A CN108221449A CN201711236355.0A CN201711236355A CN108221449A CN 108221449 A CN108221449 A CN 108221449A CN 201711236355 A CN201711236355 A CN 201711236355A CN 108221449 A CN108221449 A CN 108221449A
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- CN
- China
- Prior art keywords
- air draft
- spray equipment
- filter bag
- hood air
- paper machine
- 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.)
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
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Abstract
The present invention relates to a kind of paper machine closed hood air draft clean method, air draft cleaning systems include dust filtering system, taste removal system and centrifugal blower, and dust filtering system includes filter bag, and taste removal system includes spray equipment and packing layer, includes the following steps：Gas hood air draft enters filter bag by exhaust duct, and filter bag is polyester fiber, and the filtering mesh of filter bag is 5 50 μm；Gas hood air draft is entered the packing layer of spray equipment by spray equipment bottom, and the nozzle of spray equipment is from packing layer uppermost spray chemical liquids；Mixed liquor in spray equipment carries out chemical neutralization after being cleaned by clear water so that PH is neutrality；Mixed liquor after neutralization is passed through the water inlet pipe of spray equipment, and gas is discharged by centrifugal blower.A kind of paper machine closed hood air draft clean method of the present invention first carries out clear dirt processing to air draft, removes the paper dirt in air draft, then removes air draft peculiar smell by spraying the double action of deodorizing device and filler pond in taste removal system.
Description
Technical field
The present invention relates to pulp technology for making paper, more particularly to a kind of paper machine closed hood air draft clean method.
Background technology
Papermaking dry portion main function is to slough moisture extra in page, and l Water Paper page is after press section workshop section comes out, still
There is 50% or so moisture, and the method for these moisture machinery has been not easy to remove, it is necessary to using the method for heat drying into one
Step dehydration, the moisture for making into paper are reduced to 5%-8%.Web dryness generally improves using steam-heated mode in papermaking dry portion,
To keep the thermal efficiency of drying section, generally use gas hood all closes entire drying section, meanwhile, to keep drying cylinder clean, do
Dry portion usually adds some chemicals of keeping a public place clean, so as to cause a large amount of residual water vapor, paper dirt and chemistry point is generated in drying section
Son, and papermaking dry portion uses closed hood, whole system passes through ventilating system air draft due to long-time closed circulation, gas hood
While taking moisture out of, also a large amount of paper dirt and the chemicals of volatilization, three generate peculiar smell under the action of high temperature, lead to paper
Machine peripheral air is second-rate.
Invention content
For the present invention in order to solve problem of the prior art, air draft cleannes can be promoted by providing one kind, prevent paper machine all
The paper machine closed hood air draft clean method of surrounding environment pollution.
Specific technical solution is as follows：A kind of paper machine closed hood air draft clean method, air draft cleaning systems include dust
Filtration system, taste removal system and centrifugal blower, dust filtering system include filter bag, and taste removal system includes spray equipment and filler
Layer, includes the following steps：A) gas hood air draft enters filter bag by exhaust duct, and filter bag is polyester fiber, the mistake of filter bag
Filter screen eye is 5-50 μm；B) gas hood air draft is entered the packing layer of spray equipment by spray equipment bottom, the nozzle of spray equipment from
Packing layer uppermost spray chemical liquids；c）Mixed liquor in spray equipment carries out chemical neutralization after being cleaned by clear water so that PH is
It is neutral；d）Mixed liquor after neutralization is passed through the water inlet pipe of spray equipment, and gas is discharged by centrifugal blower.
Attached technical scheme for the present invention below：
Preferably, in step a, gas hood air draft is sent into filter bag by exhaust fan, and the blast velocity control of exhaust fan is in 0.8m/
S so as to prevent air-flow too fast, causes filter bag that can not filter dust.
Preferably, in step d, gas is expelled to heat exchanger by centrifugal blower, so as to control gas
Delivery flow.
Preferably, centrifugal blower outlet is equipped with impedance meeting formula silencer, so as to making an uproar when reducing equipment operation
Sound avoids generating noise pollution to ambient enviroment.
The technique effect of the present invention：A kind of paper machine closed hood air draft clean method of the present invention first carries out air draft clear
Dirt processing, removes the paper dirt in air draft, is then removed by spraying the double action of deodorizing device and filler pond in taste removal system
Air draft peculiar smell substantially improves production line air quality, improves employee's occupational health.
Description of the drawings
Fig. 1 is a kind of paper machine closed hood air draft cleaning systems of the embodiment of the present invention.
Fig. 2 is a kind of flow chart of paper machine closed hood air draft clean method of the embodiment of the present invention.
Specific embodiment
In the following, the substantive distinguishing features and advantage of the present invention are further described with reference to example, but not office of the invention
It is limited to listed embodiment.
As depicted in figs. 1 and 2, a kind of paper machine closed hood air draft clean method of the present embodiment, air draft cleaning systems
Including dust filtering system, taste removal system and centrifugal blower, dust filtering system include filter bag, and taste removal system includes spray and fills
1 and packing layer 2 are put, is included the following steps：
A) gas hood air draft enters filter bag 4 by exhaust duct 3, and filter bag is polyester fiber, and the filtering mesh of filter bag is 5-
50μm；So as to which filter bag be enable to remove dust, by dust concentration control less than 20mg/L.B) gas hood air draft is by spray equipment 1
Bottom enters the packing layer of spray equipment, and the nozzle of spray equipment is from packing layer uppermost spray chemical liquids；It is filtered by filter bag
From below to up, the chemical liquids counter current contacting in packing layer from top to down, the smell substance in gas is rinsed for gas hood air draft afterwards
Water is absorbed and is neutralized, so as to which the peculiar smell in gas be removed.In the present embodiment, the chemical liquids are PP deodorants, and chemical liquids are led to
Chemicals dosing plant 8 is crossed to provide.c）Mixed liquor in spray equipment 1 carries out chemical neutralization after being cleaned by clear water so that PH is neutrality.
Mixed liquor is passed through in cleaning case 9.d）Mixed liquor after neutralization is passed through the water inlet pipe 11 of spray equipment 1, and PH is made to reach weight after neutrality
New be transported in taste removal system recycles.In above-mentioned technical proposal, by dust filtering system by the paper dirt in gas hood air draft
It removes, it, will be in taste removal by centrifugal high pressure fan secondly using the peculiar smell with gas hood air draft in the taste removal system high efficiency of convection type
Gas discharge with after, the mixed gas so as to fulfill the discharge of papermaking dry system realize zero fog, zero dust, zero smell.
In the present embodiment, in step a, gas hood air draft is sent into filter bag by exhaust fan 5, and the blast velocity control of exhaust fan exists
0.8m/s so as to prevent air-flow too fast, causes filter bag that can not filter dust.
In the present embodiment, in step d, gas is expelled to heat exchanger 7 by centrifugal blower 6, so as to pass through gas
Liquid in the water tank of temperature heating heat exchanger.
In the present embodiment, centrifugal blower outlet is equipped with impedance meeting formula silencer, and exporting addition noise reduction in centrifugal blower sets
It is standby, noise during equipment operation is reduced, noise is can be controlled in 80 decibels.
A kind of paper machine closed hood air draft clean method of the present embodiment first carries out clear dirt processing to air draft, removes air draft
In paper dirt, then remove air draft peculiar smell by spraying the double action in deodorizing device and filler pond in taste removal system, change significantly
Kind production line air quality, improves employee's occupational health.
It is pointed out that the technical concepts and features of above-mentioned preferred embodiment only to illustrate the invention, its object is to
It allows person skilled in the art that can understand present disclosure and implements according to this, the protection of the present invention can not be limited with this
Range.Any equivalent change or modification in accordance with the spirit of the invention should be covered by the protection scope of the present invention.
Claims (4)
1. a kind of paper machine closed hood air draft clean method, air draft cleaning systems include dust filtering system, taste removal system and
Centrifugal blower, dust filtering system include filter bag, and taste removal system includes spray equipment and packing layer, which is characterized in that including
Following steps：
A) gas hood air draft enters filter bag by exhaust duct, and filter bag is polyester fiber, and the filtering mesh of filter bag is 5-50 μ
m；
B) gas hood air draft is entered the packing layer of spray equipment by spray equipment bottom, and the nozzle of spray equipment sprays above packing layer
Spill chemical liquids；
c）Mixed liquor in spray equipment carries out chemical neutralization after being cleaned by clear water so that solution PH is neutrality；
d）Mixed liquor after neutralization is passed through the water inlet pipe of spray equipment, and gas is discharged by centrifugal blower.
2. a kind of paper machine closed hood air draft clean method as described in claim 1, which is characterized in that in step a, gas hood
Air draft is sent into filter bag by exhaust fan, and the blast velocity control of exhaust fan is in 0.8m/s.
3. a kind of paper machine closed hood air draft clean method as claimed in claim 2, which is characterized in that in step d, gas
Heat exchanger is expelled to by centrifugal blower.
4. a kind of paper machine closed hood air draft clean method as claimed in claim 3, which is characterized in that centrifugal blower exports
Equipped with impedance meeting formula silencer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711236355.0A CN108221449A (en) | 2017-11-30 | 2017-11-30 | A kind of paper machine closed hood air draft clean method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711236355.0A CN108221449A (en) | 2017-11-30 | 2017-11-30 | A kind of paper machine closed hood air draft clean method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108221449A true CN108221449A (en) | 2018-06-29 |
Family
ID=62653049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711236355.0A Pending CN108221449A (en) | 2017-11-30 | 2017-11-30 | A kind of paper machine closed hood air draft clean method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108221449A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109610223A (en) * | 2018-12-21 | 2019-04-12 | 江苏理文造纸有限公司 | A kind of papermaking dry air draft deodorizing device |
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| SE442527B (en) * | 1973-04-04 | 1986-01-13 | Aer Corp | FIBER MATERIAL DRY |
| CN201320441Y (en) * | 2008-11-14 | 2009-10-07 | 镇江同盛环保设备工程有限公司 | Mobile water-laid welding smoke treating apparatus |
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| CN202519524U (en) * | 2012-03-31 | 2012-11-07 | 福建省建宁县联丰造纸有限公司 | Closed ventilation system |
| CN202876644U (en) * | 2012-10-31 | 2013-04-17 | 上海天海电子有限公司 | Waste gas treatment device |
| CN203857831U (en) * | 2014-03-21 | 2014-10-01 | 江苏理文造纸有限公司 | Efficient cooling tower for papermaking |
| CN204247012U (en) * | 2014-10-31 | 2015-04-08 | 福建省宏鑫化纤实业有限公司 | A kind of Efficient textile cleaner |
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| CN206404535U (en) * | 2017-01-03 | 2017-08-15 | 唐山拓普生物科技有限公司 | A kind of taste removal deaeration device in drum drying equipment |
| CN107158939A (en) * | 2017-06-16 | 2017-09-15 | 四川弘毅智慧知识产权运营有限公司 | A kind of cleaning equipment for industrial waste gas |
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| SE442527B (en) * | 1973-04-04 | 1986-01-13 | Aer Corp | FIBER MATERIAL DRY |
| CN201320441Y (en) * | 2008-11-14 | 2009-10-07 | 镇江同盛环保设备工程有限公司 | Mobile water-laid welding smoke treating apparatus |
| CN101829468A (en) * | 2009-03-10 | 2010-09-15 | 上海融新能源环境科技有限公司 | Flue-gas cleaning method and system for waste incineration |
| CN202519524U (en) * | 2012-03-31 | 2012-11-07 | 福建省建宁县联丰造纸有限公司 | Closed ventilation system |
| CN202876644U (en) * | 2012-10-31 | 2013-04-17 | 上海天海电子有限公司 | Waste gas treatment device |
| CN203857831U (en) * | 2014-03-21 | 2014-10-01 | 江苏理文造纸有限公司 | Efficient cooling tower for papermaking |
| CN204247012U (en) * | 2014-10-31 | 2015-04-08 | 福建省宏鑫化纤实业有限公司 | A kind of Efficient textile cleaner |
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| CN107158939A (en) * | 2017-06-16 | 2017-09-15 | 四川弘毅智慧知识产权运营有限公司 | A kind of cleaning equipment for industrial waste gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109610223A (en) * | 2018-12-21 | 2019-04-12 | 江苏理文造纸有限公司 | A kind of papermaking dry air draft deodorizing device |
| CN109610223B (en) * | 2018-12-21 | 2020-10-30 | 江苏理文造纸有限公司 | Papermaking drying is with removing peculiar smell device of airing exhaust |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180629 |
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| RJ01 | Rejection of invention patent application after publication |