CN201105201Y - Kraft pulping odor treatment device - Google Patents
Kraft pulping odor treatment device Download PDFInfo
- Publication number
- CN201105201Y CN201105201Y CNU2006200368692U CN200620036869U CN201105201Y CN 201105201 Y CN201105201 Y CN 201105201Y CN U2006200368692 U CNU2006200368692 U CN U2006200368692U CN 200620036869 U CN200620036869 U CN 200620036869U CN 201105201 Y CN201105201 Y CN 201105201Y
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- alkali
- absorption tower
- treatment device
- moisture trap
- odor treatment
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- Gas Separation By Absorption (AREA)
Abstract
The utility model relates to a stench treatment device, in particular to a treatment device for stench of sulphate process pulping, belonging to the technical field of exhaust gas treatment devices, which is characterized in that the stench treatment device comprises a condensation absorbing tower, a gas water separator, and an alkali absorbing tower which are connected via a plurality of pipes; a fan is arranged between the condensation absorbing tower and the alkali absorbing tower, which is communicated with an alkali storage tank, and an alkali pump is arranged between the alkali storage tank and the alkali absorbing tower. Physical and chemical methods are used to absorb and consume a great amount of odorous substances, the stinks with a certain temperature and pressure are collected, sprayed by cold water and absorbed via a condenser, and then the gas water mixture is separated in the gas water separator; subsequently, the gas with offensive odor is pumped into the alkali absorbing tower by means of the fan, and mixes fully with alkali solution through fillers to conduct chemical reactions, so as to eliminate the stinky odor. The stench treatment device has the advantages of simple structure, convenient operation and management, low operation costs, and easy popularization.
Description
Technical field
The utility model relates to a kind of waste gas pollution control and treatment device, particularly a kind of sulfate pulping odor treatment device.
Background technology
In traditional chemical pulp and the semi-chemical pulp manufacture process, all to use certain inorganic chemical under HTHP, plant fiber material to be carried out chemical action, to become fiber separation is come out.Yet the waste liquid waste gas that it produced produces severe contamination to environment.Sulfate pulping technology is the comparatively advanced pulping process that grows up on the basis of soda pulping technology.Because this pulping process all having tangible advantage aspect the recovery of waste liquid and the control environmental pollution, has therefore become the pulping process of dominate in the world with respect to traditional chemical pulp and semi-chemical pulp manufacturing process.Most sulfate pulpings that adopt in the large and medium-sized pulp mill of China.However, also there is the waste gas in some serious defective, particularly pulp cooking blowing process in this method, contains the unpleasant foul smell that the reduced sulphur Chemistry and Physics Institute produces, and influences factory and reaches the masses' living environment on every side.In recent years, each sulfate pulping factory had taked various improved measures one after another, comprise that reducing boiling sulphidity, interpolation digesting assistant etc. has certain effect to reducing the boiling foul smell, but effect was still undesirable.
At present, the main method of pulping and digesting odor treatment has biological deodorizing method, physics to remove ugly method, firing method and chemical deodorizing method, biological deodorizing method cost is higher, firing method is because waste gas can not completing combustion, and burning also can produce other pernicious gases, therefore environmental pollution is still deposited, and all can not thoroughly solve thoroughly eliminating of toxic and harmful in physical deodorization method and chemical deodorizing method.Small-sized paper mill is general adopts towards the method for sky venting, owing to contain the gas of multiple sulfur-bearing in the waste gas, stench, poisonous, therefore not only long because of emptying time towards the sky venting, and polluted environment.Also have and adopt improved emptying venting mode, as adopt noiseless heater recovery boiling combustion heater vertically to be installed in the alkali-prepared tank and whole soups that immerse, the heat energy in the waste gas constantly is discharged in the soup, till soup reaches required latitude.Perhaps boiling waste gas is imported and be provided with multihole nozzle or injector and contain in the recycling bin of blue or green water, the heat that utilizes waste gas is used this hot water dissolving's solid caustic soda or dosing alkali etc. again with the inner bucket water temperature rise.But all exist evacuation time long, waste gas can not be sent to the greatest extent, because the heat that the required heat of preheating cooking liquor includes less than cooking waste liquor, therefore the heat energy of boiling waste gas does not obtain utilizing fully, and samely be subjected to also might form in the source of the gas " gas is stifled ", will a part of exhaust gas evacuation, like this, both influenced recovering effect, the pollution problem of toxic gas is not resolved yet.
Summary of the invention
The utility model is at the deficiencies in the prior art, provide a kind of in the sulfate pulping technical process recovering effect good, can thoroughly solve the sulfate pulping odor treatment device of the problem of environmental pollution of waste gas.
The utility model is achieved by the following technical solution:
A kind of sulfate pulping odor treatment device is characterized in that: comprise condensation absorption tower, moisture trap and alkali absorption tower that pipeline connects, the described condensation suction gas port of export is connected with moisture trap through pipeline; The blast pipe of described moisture trap is connected through the air inlet of pipeline with the alkali absorption tower, and its connecting pipe is provided with blower fan; Upper end, alkali absorption tower is provided with shower, and the top is provided with exhaust outlet, and the bottom is provided with the alkali lye floss hole.
Described condensation absorption tower comprises upper/lower cone and main body, is provided with inlet opening, upper cone and is provided with the pouring plate and the support bar of fixedlying connected in the main body junction is provided with aproll plate, main body at upper cone.
The upper cone that described moisture trap comprises housing, be arranged at the housing upper and lower side and lower cone, be located at air inlet pipe and the blast pipe in the housing, the bracing frame of fixedlying connected with housing.
Described alkali absorption tower comprises support column, lower cone, body of the tower and is located at the alkali absorption tower blast pipe of cat head end, lower cone be provided be provided with crossbearer in air admission hole, the tower body and drench plate, at crossbearer with drench the hand-hole that is respectively equipped with on the plate between Pall ring, the Pall ring, be positioned at the hand-hole top and drench pouring pipe under the plate; Be provided with blower fan between described condensation absorption tower and the alkali absorption tower, described alkali absorption tower is communicated with alkali storage groove, is provided with alkali pump between alkali storage groove and the alkali absorption tower.
Described blower fan is fixedlyed connected with the moisture trap bracing frame, is communicated with moisture trap and alkali absorption tower by pipeline.
Described alkali pump is communicated with respectively with alkali storage groove and alkali absorption tower by pipeline between alkali storage groove and alkali absorption tower.
The beneficial effects of the utility model show as: both by the water-soluble waste gas of separating, use the reaction of alkali lye and foul smell again, the method that adopts physics, chemistry to combine is removed thoroughly foul smell; Use Pall ring in the alkali absorption tower, be full of high-performance fillers in the ring, increase the contact area and the time of contact of absorption liquid and waste gas, absorption efficiency height, cat head have efficient liquid distributor that absorption liquid is evenly distributed, thereby have improved absorption efficiency greatly.The absorption pattern of two filling-material structures is adopted on the absorption tower, has guaranteed the abundant absorption to waste gas.The absorption tower top vent also is provided with soup and catches haustorium, and what prevent soup flies to lose influence to environment.Because the utility model adopts alkali pump constantly to inject alkali lye in the alkali absorption tower, alkali lye after in the time of in the alkali absorption tower is sent alkali storage groove again back to, guaranteed the concentration of alkali lye in the alkali absorption tower, when absorbing the reduction of soup valid density, only need the lower concentration absorbing soup is sent back to pulping system, replenish new absorption soup simultaneously, can realize the continuous operation of absorption plant.The scene of installing does not in addition need personnel on duty, but remote operation.Convenient operation and management, operating cost is low.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model condensation absorption tower cut-away view.
Fig. 3 is the utility model moisture trap cutaway view.
Fig. 4 is the utility model alkali absorption tower cutaway view.
The specific embodiment
In conjunction with the accompanying drawings structure of the present utility model and use are illustrated.
The whole process of exhaust-gas treatment as shown in Figure 1, the waste gas that contains foul smell enters condensation absorption tower 1 at first, after the cold water cooling and absorbing, enter moisture trap 2, because there are difference in gas and water proportion, simultaneously under the dynamic action of blower fan 3, the waste gas that contains foul smell enters alkali absorption tower and alkali lye generation chemical action and removes foul smell, simultaneously, be to guarantee the concentration stabilize chemistry reaction of alkali lye, supply with continuously and upgrade alkali lye by storage alkali rough 5 and alkali pump 6.
At the idiographic flow on condensation absorption tower 1 as shown in Figure 2, the waste gas that contains foul smell enters the condensation absorption tower, cooling water enters by inlet opening 12 from the last centrum 7 on condensation absorption tower 1, under the effect of aproll plate 9, through drip water plate 10 sprays down, contact, reduce the foul smell temperature with the foul smell that rises, absorb the foul smell that a part can be dissolved in water, reduce odor concentration.
Flow process in gas-water separation tower as shown in Figure 3, the foul smell on process condensation absorption tower 1 enters from the air inlet pipe 17 of moisture trap 2, under the dynamic action of gravity effect and blower fan 3, gas enters alkali absorption tower 4 from moisture trap blast pipe 16, waste water gives off moisture trap 2 from moisture trap hypocentrum 15 under the gravity effect, enter the waste water treatment flow process.
Waste gas enters alkali absorption tower 4 at last, idiographic flow therein as shown in Figure 4, the waste gas of extracting out through blower fan 3 enters by the air admission hole 25 on alkali absorption tower 4 again, alkali lye from the top spray down, in order to increase foul smell and alkali lye active area and action time, a large amount of filler Pall rings 21 is installed in the tower, foul smell fully contacts with filler Pall ring 21 and reacts the back and discharge by alkali absorption tower blast pipe 26, in order to guarantee that alkali lye reaches the reaction requirement, special configuration alkali storage groove 5 and alkali pump, thereby guarantee that the alkali lye capacity supplies with and replace.
The method that the utility model adopts physics, chemistry to combine is removed thoroughly foul smell, does not need personnel on duty simultaneously, but remote operation.Convenient operation and management, operating cost is low.
Claims (6)
1. sulfate pulping odor treatment device is characterized in that: comprise condensation absorption tower (1) that pipeline connects, moisture trap (2) and alkali absorption tower (4), described condensation absorption tower (1) port of export is connected with moisture trap (2) through pipeline; The blast pipe (16) of described moisture trap (2) is connected with the air admission hole (25) of alkali absorption tower (4) through pipeline, and its connecting pipe is provided with blower fan (3); Upper end, alkali absorption tower (4) is provided with shower (28), and the top is provided with blast pipe (26), and the bottom is provided with alkali lye floss hole (29).
2. sulfate pulping odor treatment device according to claim 1, it is characterized in that: described condensation absorption tower (1) comprises upper cone (7), lower cone (8) and main body (30), is provided with inlet opening (12), upper cone (7) and is provided with the pouring plate (10) and the support bar (11) of fixedlying connected in main body (30) junction is provided with aproll plate (9), main body (30) at upper cone (7).
3. sulfate pulping odor treatment device according to claim 1 is characterized in that: the upper cone (14) that described moisture trap (2) comprises housing (13), be arranged at housing (13) upper and lower side and lower cone (15), be located at air inlet pipe (17) and the blast pipe (16) in the housing (13), the bracing frame (18) of fixedlying connected with housing (13).
4. sulfate pulping odor treatment device according to claim 1, it is characterized in that: described alkali absorption tower (4) comprises support column (24), lower cone (22), body of the tower (31) and is located at the alkali absorption tower blast pipe (26) of cat head end, lower cone (22) be provided be provided with crossbearer (23) in air admission hole (25), the body of the tower (31) and drench plate (20), at crossbearer (23) with drench the hand-hole (27) that is respectively equipped with on the plate (20) between Pall ring (21), the Pall ring (21), be positioned at the pouring pipe (28) between hand-hole (27) and the pouring plate (20); Be provided with blower fan (3) between described moisture trap (2) and alkali absorption tower (4), described alkali absorption tower (4) is communicated with alkali storage groove (5), is provided with alkali pump (6) between alkali storage groove (5) and alkali absorption tower (3).
5. sulfate pulping odor treatment device according to claim 1 is characterized in that: described blower fan (3) is fixedlyed connected with moisture trap bracing frame (18), is communicated with moisture trap (2) and alkali absorption tower (4) by pipeline.
6. sulfate pulping odor treatment device according to claim 4 is characterized in that: described alkali pump (6) is positioned between alkali storage groove (5) and alkali absorption tower (4), is communicated with respectively with alkali storage groove (5) and alkali absorption tower (4) by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200368692U CN201105201Y (en) | 2006-12-28 | 2006-12-28 | Kraft pulping odor treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200368692U CN201105201Y (en) | 2006-12-28 | 2006-12-28 | Kraft pulping odor treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201105201Y true CN201105201Y (en) | 2008-08-27 |
Family
ID=39956989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200368692U Expired - Fee Related CN201105201Y (en) | 2006-12-28 | 2006-12-28 | Kraft pulping odor treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201105201Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019133A (en) * | 2010-11-01 | 2011-04-20 | 永州湘江纸业有限责任公司 | Environment-friendly treatment method and device for odor |
| CN101721834B (en) * | 2009-12-18 | 2012-11-21 | 宜宾竹海竹资源科技有限责任公司 | Treatment method of waste gas generated by prehydrolysis of bamboo dissolving pulp |
| CN102995479A (en) * | 2011-09-09 | 2013-03-27 | 吉林化纤集团有限责任公司 | Method for processing exhaust gas of bamboo wood dissolving pulp |
| CN113893652A (en) * | 2021-09-27 | 2022-01-07 | 四川永丰浆纸股份有限公司 | System and method for treating odor of spraying pot |
-
2006
- 2006-12-28 CN CNU2006200368692U patent/CN201105201Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101721834B (en) * | 2009-12-18 | 2012-11-21 | 宜宾竹海竹资源科技有限责任公司 | Treatment method of waste gas generated by prehydrolysis of bamboo dissolving pulp |
| CN102019133A (en) * | 2010-11-01 | 2011-04-20 | 永州湘江纸业有限责任公司 | Environment-friendly treatment method and device for odor |
| CN102019133B (en) * | 2010-11-01 | 2012-08-29 | 永州湘江纸业有限责任公司 | Environment-friendly treatment method and device for odor |
| CN102995479A (en) * | 2011-09-09 | 2013-03-27 | 吉林化纤集团有限责任公司 | Method for processing exhaust gas of bamboo wood dissolving pulp |
| CN113893652A (en) * | 2021-09-27 | 2022-01-07 | 四川永丰浆纸股份有限公司 | System and method for treating odor of spraying pot |
| CN113893652B (en) * | 2021-09-27 | 2024-01-19 | 四川永丰浆纸股份有限公司 | System and method for treating odor of spraying pot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080827 Termination date: 20100128 |