CN107998870A - A kind of alkaline pollution gas cleaning plant - Google Patents
A kind of alkaline pollution gas cleaning plant Download PDFInfo
- Publication number
- CN107998870A CN107998870A CN201810076029.6A CN201810076029A CN107998870A CN 107998870 A CN107998870 A CN 107998870A CN 201810076029 A CN201810076029 A CN 201810076029A CN 107998870 A CN107998870 A CN 107998870A
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- China
- Prior art keywords
- purifying box
- filter bag
- cleaning plant
- gas
- pollution gas
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
- B01D53/82—Solid phase processes with stationary reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/58—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/406—Ammonia
Abstract
The invention belongs to atmosphere polluting controling technology field, disclose a kind of alkaline pollution gas cleaning plant, it includes the purifying box that top is equipped with air inlet equipped with gas outlet, lower part, adsorption cleaning unit is equipped with the purifying box, the adsorption cleaning unit includes the support plate being horizontally located in purifying box, some ventholes are offered in the support plate, are equipped with each venthole to the open setting of the filter bag for filtering gas and the top of filter bag；The gas outlet is higher than the height on filter bag top in the height of vertical direction.The device is come into full contact with using the filter material in adsorption cleaning unit to entering the alkaline pollution gas in purifying box in purifying box, the alkaline pernicious gas of the fine particles and ammonia, polyamines etc. such as the dust in polluted gas is captured by the principle of chemisorbed, so as to fulfill the purification to polluted gas, and good purification.
Description
Technical field
The invention belongs to atmosphere polluting controling technology field, and in particular to a kind of alkaline pollution gas cleaning plant.
Background technology
With the quickening of Chinese Industrialization process, Environment Pollution Event emerges in an endless stream.At present, In The Atmosphere Over China pollution situation ten
Divide seriously, common alkaline pollution gas is mainly ammonia and other organic basic gases in air（Organic amine, as diethylamine,
Diethylenetriamine, triethylene tetramine etc.）, these alkaline pollution gases are primarily present in the industries such as chemical industry, casting, printing and cultivation
In.
At present, the purified treatment of alkaline pollution gas mainly uses spray column, its function mode is：Constantly by alkaline pollution
Gas is introduced by air hose from bottom of towe, and alkaline pollution gas is in uphill process, with carrying out gas-liquid two-phase from tower top spray is lower
Come into full contact with, while occur to absorb neutralization reaction, after alkaline pollution gas is purified, then by wind turbine after demisting plate dehydrating demisting
It is discharged into air.Fall into bottom of towe acid absorbing liquid can after water pump is pressurized again from tower top spray and under, so as to fulfill multiple
Recycle.But to reach stringent discharge standard, many enterprises need to use side of the multi-stage spray tower by multi-stage spray
Formula realizes removal to the harmful substance such as suspended particulate substance and alkaline pollution gas, this mode there are the drawbacks of be multi-stage spray
Mode not only needs consumption to build multilevel device, and equipment, which is taken up an area, to be increased, while also expends substantial amounts of absorbing liquid and water.In purification process
In, the booster pump of spray column needs to run always in order to which absorbing liquid supercharging is recycled to tower top, cause its there are the drawbacks of one
It is that single purification efficiency is low, second, energy consumption is higher.In order to effectively control the pollution of alkaline pollution gas, it is dirty preferably to reduce alkalescence
The discharge of gas is contaminated, there is an urgent need for good purification, alkaline pollution gas cleaning plant of low cost.
The content of the invention
Present invention aims to overcome that prior art defect, there is provided a kind of alkaline pollution gas cleaning plant, the device are net
It is good and of low cost to change effect.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of alkaline pollution gas cleaning plant, it includes the purifying box that top is equipped with air inlet equipped with gas outlet, lower part, described
Adsorption cleaning unit is equipped with purifying box, the adsorption cleaning unit includes the support plate being horizontally located in purifying box, described
Some ventholes are offered in support plate, the top opening of the filter bag and filter bag to filter gas is equipped with each venthole
Set；The gas outlet is higher than the height on filter bag top in the height of vertical direction.
Specifically, the filter bag is made of ion exchange fiber material, the cross section of filter bag can be circular, ellipse or
Polygon（Such as triangle, square）Deng.The connection of venthole and filter bag can use the ordinary skill in the art, can such as incite somebody to action
Turn up and paved in venthole outer at the top of filter bag, by bolt by both be fixedly connected or venthole at be equipped with and upwards prolong
The venting channels stretched, top and the venting channels of filter bag are fastenedly connected.
Further, the ion-exchange fibre refers to containing a kind of or more in mono carboxylic, double carboxyls and sulfonate functional groups
Kind conjugate fiber.
It is further preferred that above-mentioned alkaline pollution gas cleaning plant further includes regenerative system, the regenerative system includes
Regeneration pipeline, the regeneration pump in regeneration pipeline and the actified solution loaded on purifying box bottom, the one of the regeneration pipeline
End is connected with actified solution, and the other end of regeneration pipeline stretches into the top in purifying box, and stretches into purifying box internal upper part again
Raw pipe ends are provided with some nozzles, and the quantity of nozzle is consistent with the quantity of filter bag, and nozzle stretches into filter bag top.
Specifically, the actified solution can be one or more mixing in dust technology, dilute hydrochloric acid, dilute sulfuric acid and phosphoric acid,diluted
Liquid.
Specifically, the nozzle material is stainless steel or plastics etc., there is preferable corrosion resistance.
It is further preferred that the purifying box side wall is provided with liquid level gauge and acidometer, regenerated to monitor in purifying box
The liquid level of solution and the pH of actified solution.
It is further preferred that be provided with air flap in the purifying box, air flap inclined upward to the right, air flap
Top is fixedly connected with purifying box side wall and air flap top is higher than air inlet in the height of vertical direction, and air flap bottom is leaned on
The liquid level of nearly actified solution.
It is further preferred that horizontally extending strainer is equipped with below the filter bag, in polluted gas intake process
In, preliminary uniform air distribution can be played the role of, can prevent it from falling directly into actified solution when filter bag is come off using the long period.
Alkaline pollution gas cleaning plant of the present invention, using the filter material in adsorption cleaning unit to entering the alkali in purifying box
Contact scar gas is come into full contact with purifying box, trickle by the dust in the principle capture polluted gas of chemisorbed etc.
The alkalescence pernicious gas such as particle and ammonia, polyamines, so as to fulfill the purification to polluted gas.Details are as follows for concrete principle：
Adsorption reaction：NH3 + R-COOH → R-COONH4
NH3 + R-SO4H → R-SO4NH4
Regenerative response：R-COONH4 + H+ →R-COOH + NH4 +
R-SO4NH4 + H+ →R-SO4H + NH4 +
The chemical reaction occurred in above process, is acid-base neutralization reaction in adsorption process, and regenerative process is prepared by strong acid
Weak acid reaction principle, the actified solution acidity used in regenerative process are more than ion-exchange fibre acidity.
Compared to the prior art, beneficial effects of the present invention：
1）Apparatus of the present invention by made of ion exchange fiber material filter bag realize absorption to alkaline pollution gas and net
Change, when alkaline pollution gas passes through filter bag, react with mono carboxylic, double carboxyls and sulfonate functional groups, so as to fulfill right
The removal of alkaline pollution gas, good purification（Purification efficiency is more than 95%）.With the existing phase by the way of spray column purification
Compare, to purify the made filter bag reaction contact area bigger of the ion-exchange fibre of alkaline pollution gas in apparatus of the present invention,
Reactivity strengthens, and purification efficiency significantly improves.
2）Regenerative system in apparatus of the present invention can realize the regeneration of filter bag and recycle, of low cost, used
Ion-exchange fibre has certain saturated extent of adsorption, before the absorption of not up to saturation, possesses adsorption capacity always, without opening
Open regenerative system；When reaching saturation absorption, start regenerative system, the alkali for ion-exchange fibre being adsorbed using actified solution
Contact scar gas component elute, fibers adsorption ability recover, can be repeatedly circulated, reduce overall use into
This；For regeneration pump compared with spray column pumps, present apparatus pump is intermittent operation, and spray column pump is continuous operation, and Same Efficieney declines
Low run time, correspondingly reduces energy consumption.
3）The present invention can effectively capture the alkaline pollution gas entered from air inlet in advance by the air flap of setting
In fine particle, dust etc., improve clean-up effect.In addition, apparatus of the present invention are simple in structure, easy to operate, cost is relatively low,
It is adapted to industrialized production, great application value.
Brief description of the drawings
Fig. 1 is the structure diagram of alkaline pollution gas cleaning plant of the present invention.
Embodiment
Technical scheme is further discussed in detail with reference to embodiments, but protection scope of the present invention
It is not limited thereto.
Embodiment 1
As shown in Figure 1, a kind of alkaline pollution gas cleaning plant, it includes top and is equipped with air inlet equipped with gas outlet 102, lower part
101 purifying box 1, the purifying box 1 is interior to be equipped with adsorption cleaning unit, and the adsorption cleaning unit includes being horizontally located in purification
Support plate 106 in case 1（Support plate 106 can be connected in purifying box 1, or is connected by the fixed ear in purifying box 1
In in purifying box 1, it is not drawn into figure）, some ventholes are offered in the support plate 106, are equipped with and are used in each venthole
To filter, the top of the filter bag 107 of gas and filter bag 107 is open to be set；The gas outlet 102 is higher than in the height of vertical direction
The height on 107 top of filter bag.
The filter bag 107 is made of ion exchange fiber material, and the cross section of filter bag 107 shown in figure is circle, that is, is filtered
Bag 107 is cylindrical shape.The connection mode of venthole and filter bag is equipped with the bulge loop upwardly extended, filter as shown in FIG., at venthole
The outer of bulge loop is turned to outside the top of bag, and is realized and is fastenedly connected by tight loop 6 with bulge loop.The ion-exchange fibre, which refers to, to be contained
There are one or more conjugate fibers in mono carboxylic, double carboxyls and sulfonate functional groups.
Above-mentioned alkaline pollution gas cleaning plant further includes regenerative system, and the regenerative system includes regeneration pipeline 2, is arranged on
Regeneration pump 105 in regeneration pipeline 2 and the actified solution 3 loaded on 1 bottom of purifying box, one end of the regeneration pipeline 2 with again
Raw solution 3 is connected, and the other end of regeneration pipeline 2 stretches into the top in purifying box 1, and stretches into the regeneration of 1 internal upper part of purifying box
2 end set of pipeline has some nozzles 103, and the quantity of nozzle 103 is consistent with the quantity of filter bag 107, and nozzle 103 stretches into filter
107 tops of bag.The actified solution can be one or more mixed liquors in dust technology, dilute hydrochloric acid, dilute sulfuric acid and phosphoric acid,diluted.Institute
It is the plastics with preferable corrosion resistance to state nozzle material.The purifying box side wall is provided with liquid level gauge 4 and acidometer 5, uses
To monitor the pH of the liquid level of actified solution 3 and actified solution 3 in purifying box 1.Air inlet is provided with the purifying box 1
Baffle 104, the inclined upward to the right of air flap 104,104 top of air flap is fixedly connected with 1 side wall of purifying box and air flap
104 tops are higher than air inlet 101, liquid level of 104 bottom of air flap close to actified solution 3 in the height of vertical direction.It is described
Horizontally extending strainer 7 is equipped with below filter bag, can prevent it from falling directly into when filter bag 107 is come off using the long period
In actified solution 3.
During using apparatus of the present invention, alkaline pollution gas enters in purifying box 1 from air inlet 101, in alkaline pollution gas
Comprising part fine particle, dust etc. fall on air flap 104, then alkaline pollution gas from 3 liquid level of actified solution with
Gap between 104 bottom of air flap is ascended into filter bag 107, with the mono carboxylic in ion-exchange fibre, double carboxyls and
Sulfonate functional groups react, and the alkaline waste gas component containing amino is absorbed and fixed on filter bag, so that alkaline pollution
Gas is purified.Purified gas is arranged outside from open filter bag top outflow, and through gas outlet 102.Use a period of time
Afterwards, regeneration pump 105 can be started, under the action of regeneration pump 105, actified solution 3 is sprayed into filter bag 107 downwards from nozzle 103, then
Raw solution reacts with filter pocket material ion-exchange fibre, so as to fulfill the regeneration of filter bag 107.
Several experiments purified using apparatus of the present invention to alkaline pollution gas are listed below, to prove this hair
The clean-up effect of bright device：
1）Using concentration as 500mg/m3Ammonia polluted gas exemplified by, use purifier of the present invention（Filter bag is by containing double carboxyl officials
The ion-exchange fibre that can be rolled into a ball is made）, purification efficiency is more than 98%；
2）Using concentration as 400mg/m3Diethylamine polluted gas exemplified by, use purifier of the present invention（Filter bag is by containing mono carboxylic
It is made with the ion-exchange fibre of double carboxyl functional groups combination）, purification efficiency is more than 97%；
3）Using concentration as 450mg/m3Diethylenetriamine polluted gas exemplified by, use purifier of the present invention（Filter bag is by containing double
Carboxyl and the ion-exchange fibre of sulfonate functional groups combination are made）, purification efficiency is more than 95%；
4）Using concentration as 150mg/m3Ammonia polluted gas exemplified by, use purifier of the present invention（Filter bag by containing mono carboxylic and
The ion-exchange fibre of double carboxyl functional group combinations is made）, purification efficiency is more than 99%.
It should be noted last that：Above-described embodiment is merely to illustrate the technical solution being not intended to limit the present invention, any right
The equivalent substitution and do not depart from the modification of spirit and scope of the invention or local replacement that the present invention carries out, it should all cover in this hair
Within bright protective scope of the claims.
Claims (7)
1. a kind of alkaline pollution gas cleaning plant, it is characterised in that be equipped with gas outlet, lower part including top and be equipped with air inlet
Purifying box, the purifying box is interior to be equipped with adsorption cleaning unit, and the adsorption cleaning unit includes being horizontally located in purifying box
Support plate, offers some ventholes in the support plate, is equipped with each venthole to filter filter bag and the filter of gas
The top of bag is open to be set；The gas outlet is higher than the height on filter bag top in the height of vertical direction;The filter bag is by ion
Exchanging fiber material is made, and ion exchange fiber material is containing a kind of or more in mono carboxylic, double carboxyls and sulfonate functional groups
Kind conjugate fiber;
Described device further includes regenerative system, the regenerative system include regeneration pipeline, the regeneration pump in regeneration pipeline with
And the actified solution loaded on purifying box bottom, one end of the regeneration pipeline are connected with actified solution, regeneration pipeline it is another
The top in purifying box is stretched at end, and the regeneration pipeline end set for stretching into purifying box internal upper part has some nozzles, the number of nozzle
Amount is consistent with the quantity of filter bag, and nozzle stretches into filter bag top.
2. alkaline pollution gas cleaning plant as claimed in claim 1, it is characterised in that the cross section of the filter bag is circle
Shape, ellipse or polygon.
3. alkaline pollution gas cleaning plant as claimed in claim 1, it is characterised in that the actified solution for dust technology,
It is one or more in dilute hydrochloric acid, dilute sulfuric acid and phosphoric acid,diluted.
4. alkaline pollution gas cleaning plant as claimed in claim 1, it is characterised in that the nozzle material for stainless steel or
Plastics.
5. the alkaline pollution gas cleaning plant as described in Claims 1-4 is any, it is characterised in that the purifying box side wall
It is provided with liquid level gauge and acidometer.
6. alkaline pollution gas cleaning plant as claimed in claim 5, it is characterised in that be provided with air inlet in the purifying box
Baffle, air flap inclined upward to the right, air flap top is fixedly connected with purifying box side wall and air flap top is vertical
The height in direction is higher than air inlet, liquid level of the air flap bottom close to actified solution.
7. alkaline pollution gas cleaning plant as claimed in claim 5, it is characterised in that be equipped with below the filter bag along level
The strainer of direction extension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810076029.6A CN107998870A (en) | 2018-01-26 | 2018-01-26 | A kind of alkaline pollution gas cleaning plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810076029.6A CN107998870A (en) | 2018-01-26 | 2018-01-26 | A kind of alkaline pollution gas cleaning plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107998870A true CN107998870A (en) | 2018-05-08 |
Family
ID=62066428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810076029.6A Pending CN107998870A (en) | 2018-01-26 | 2018-01-26 | A kind of alkaline pollution gas cleaning plant |
Country Status (1)
| Country | Link |
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| CN (1) | CN107998870A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113856406A (en) * | 2021-11-18 | 2021-12-31 | 河南省科学院化学研究所有限公司 | Ammonia waste gas treatment process and treatment device |
| CN115353227A (en) * | 2022-08-29 | 2022-11-18 | 河南省科学院化学研究所有限公司 | Ion exchange fiber ammonia purification regeneration liquid treatment process and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10128041A (en) * | 1996-10-28 | 1998-05-19 | Nec Kyushu Ltd | Wet type gas scrubber and gas treatment |
| JP2005238045A (en) * | 2004-02-25 | 2005-09-08 | Toyobo Co Ltd | System for treating basic gas |
| CN206325361U (en) * | 2016-12-29 | 2017-07-14 | 河北九源环保工程有限公司 | A kind of cloth-bag type NACF purifier |
| CN208066124U (en) * | 2018-01-26 | 2018-11-09 | 河南省科学院化学研究所有限公司 | A kind of alkaline pollution gas cleaning plant |
-
2018
- 2018-01-26 CN CN201810076029.6A patent/CN107998870A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10128041A (en) * | 1996-10-28 | 1998-05-19 | Nec Kyushu Ltd | Wet type gas scrubber and gas treatment |
| JP2005238045A (en) * | 2004-02-25 | 2005-09-08 | Toyobo Co Ltd | System for treating basic gas |
| CN206325361U (en) * | 2016-12-29 | 2017-07-14 | 河北九源环保工程有限公司 | A kind of cloth-bag type NACF purifier |
| CN208066124U (en) * | 2018-01-26 | 2018-11-09 | 河南省科学院化学研究所有限公司 | A kind of alkaline pollution gas cleaning plant |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113856406A (en) * | 2021-11-18 | 2021-12-31 | 河南省科学院化学研究所有限公司 | Ammonia waste gas treatment process and treatment device |
| CN115353227A (en) * | 2022-08-29 | 2022-11-18 | 河南省科学院化学研究所有限公司 | Ion exchange fiber ammonia purification regeneration liquid treatment process and device |
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