CN109939528A - A kind of rubber internal mixing exhaust treatment system and method - Google Patents
A kind of rubber internal mixing exhaust treatment system and method Download PDFInfo
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- CN109939528A CN109939528A CN201910359250.7A CN201910359250A CN109939528A CN 109939528 A CN109939528 A CN 109939528A CN 201910359250 A CN201910359250 A CN 201910359250A CN 109939528 A CN109939528 A CN 109939528A
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- 238000000034 method Methods 0.000 title claims abstract description 28
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- 238000010521 absorption reaction Methods 0.000 claims abstract description 105
- 238000002347 injection Methods 0.000 claims abstract description 87
- 239000007924 injection Substances 0.000 claims abstract description 87
- 239000002699 waste material Substances 0.000 claims abstract description 25
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- 210000004262 dental pulp cavity Anatomy 0.000 claims description 4
- 239000002912 waste gas Substances 0.000 claims description 3
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- 238000005192 partition Methods 0.000 claims 1
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- 239000003546 flue gas Substances 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
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- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
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- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Treating Waste Gases (AREA)
Abstract
The present invention relates to a kind of rubber internal mixing exhaust treatment system and methods, system of the invention successively includes: bag filter, swirl injection absorption tower, blower and discharge tower according to exhaust gas flow direction, if the swirl injection absorption tower includes dry-spray absorption tube, the waste liquid from the swirl injection absorb the bottom of the tower is recycled for recycling as absorbing liquid.System of the invention can solve technical problem in the prior art simultaneously to the improvement of solid particle and the realization of VOCs pollutant simultaneously in rubber internal mixing tail gas in combination with the structure of bag filter and swirl injection absorption tower.
Description
Technical field
The present invention relates to Chemical Manufacture and environment protection fields, and in particular to a kind of rubber internal mixing exhaust treatment system and method.
Background technique
In rubber tyre production process, a certain amount of rubber tyre exhaust gas can be generated.The pollution factor master of this exhaust gas
It to be the pollutants such as industrial dust, stench, although pollution intensity is little, discharge amount of exhaust gas is big, pollutant component is complicated and changeable,
Odor pollutant especially in exhaust gas causes certain pollution to ambient enviroment, plant environment, and the phenomenon that disturbs residents is difficult to avoid that.Mixing
The flue gas that workshop and curing department's production process generate, wherein containing H2S、NH3、CS2, mercaptan, organic sulfur compound, amine etc. it is micro-
Organic component gas is measured, not only the health of operator is caused directly to endanger, while also polluted the big compression ring of surrounding
Border, therefore, the exhaust-gas treatment that rubber internal mixing generates are extremely urgent.
Refining glue is the important workshop section during rubber manufacture.Refining glue flue gas is mainly derived from mixer internal mix material and exists
Kneading and cracking process under conditions of 100-160 DEG C or so, mixing (mixer) of the refining glue flue gas mainly from refining glue workshop.
Refining glue flue gas pollutant is mainly the thermal cracking products of rubber, and it is different that main component is that alkane, alkene and aromatic hydrocarbons etc. gather
The pyrolysis product of pentadiene glue and some sulfur-containing compounds, although so that refining glue flue gas VOCs concentration well below standard limited value,
But still there is certain odor concentration.
CN207042994U discloses a kind of chemical industry tail gas purification absorption plant, including tail gas collecting device, rotational flow and spray
Tower, water circulating pump, recovery tank, blower, pedestal, activated carbon adsorption filter, before tail gas collecting device is located at eddy flow spray tower
End, eddy flow spray tower are equipped with the first packing layer, the second packing layer and third packing layer, and the second packing layer is installed in the first filler
Between layer and third packing layer, rotational flow and spray tower top end is connected with gas-liquid separator, and rotational flow and spray tower bottom end is connected with pedestal
It connects, eddy flow spray tower side is equipped with water circulating pump, and water circulating pump is equipped with spray waterpipe and is connected with branched pipe, under water circulating pump
Side is equipped with recovery tank by setting tail gas collecting device, can increase equipment to the absorption dynamics of tail gas, adsorption efficiency is high, absorption
Capacity is big, and then improves vent gas treatment amount, enables the timely purified treatment of its tail gas.But this vent gas treatment mode is opposite to be located
Single effect is managed, can not effectively be handled for rubber internal mixing tail gas, rubber processing industry can not be suitable for.
CN108607342A discloses a kind of rubber industry exhaust gas VOCs comprehensive processing method, and original hot glue piece is air-dried
Cooling to transform hot glue piece immersion cooling method as, i.e. hot glue piece passes through cold rinse bank circulating cooling, hot film transport mistake by conveyer belt
It is immersed in the cooling water of sink, is then dried again by axial flow blower, receipts product in journey；Hot glue piece volatilization flue gas VOCs be with
Itself temperature decline and reduce, hot glue piece soak cooling method reduce flue gas VOCs volatilization.It not only greatly reduces and controls
The scale of construction is managed, and more thorough to the processing of flue gas (VOCs), high-concentration fume incineration method is administered thoroughly, is not remained.To rubber
The synthesized environmental protection improvement of flue gas (VOCs) achieves the desired results, and compared with conventional administering method, synthesized environmental protection administering method is not only
Handle 50% or more operating cost decline that is more thorough, and administering equipment.Also tail gas is reduced merely by immersion cooling method
Generation, but the tail gas for generating in the mixing stage still can not be effectively treated.
However, the treatment effect of various rubber method for treating tail gas in the prior art is undesirable, treatment process and right
As more single, the improvement of solid particulate matter and VOCs during vent gas treatment can not be met simultaneously, in practical applications effect
It is unsatisfactory.Therefore it provides a kind of simple, efficient, comprehensive rubber exhaust treatment system and method are skills urgently to be resolved
Art problem.
Summary of the invention
The present invention provides a kind of simple, efficient, comprehensive rubber exhaust treatment system and method, can be effectively treated
In tail gas while particulate pollutant, effectively remove tool ingredient frowzy, meet during vent gas treatment solid particulate matter and
The improvement of VOCs.
The present invention provides a kind of rubber internal mixing treating tail gas system, and according to exhaust gas flow direction, the system successively includes:
Bag filter, the solid particle that the particle size range for going in removing exhaust gas is 0.5 μm or more；
Swirl injection absorption tower, the exhaust gas inlet on the swirl injection absorption tower and the waste gas outlet of the bag filter
It is connected, for going in removing exhaust gas particle size range in the particle and malodor components of submicron order；
Wherein, it is provided with gas vent at the top of the swirl injection absorption tower, bottom is provided with discard solution discharge port, described
Detection instrument is provided on the pipeline in discard solution discharge port exit, for detecting the concentration of sulfate ion in discharge waste liquid, institute
It states pipeline and is divided into two at detection instrument rear, fluid is transferred to sewage vent line by one, and another is flowed back with absorbing liquid
Fluid reservoir is connected, and the absorbing liquid reflux fluid reservoir supplies the absorbing liquid to the swirl injection absorption tower by water pump；
One end of blower, the blower is connected to the waste gas outlet at the top of the swirl injection absorption tower, institute by pipeline
The other end for stating blower is connected to exhaust tower, and the purification gas after administering passes through the top discharge of the exhaust tower.
Wherein, the detection instrument is used to detect the concentration of sulfate radical in the swirl injection absorption tower discharge waste liquid, institute
The concentration data for stating the sulfate radical that detection instrument will test feeds back to control centre, and control centre is according to returned data to waste liquid
Type judged, and by the valve in pipeline send commands to control waste liquid flow direction.For example, when sulfuric acid in waste liquid
When the concentration mass percent of root >=90%, waste liquid is transferred to sewage vent line by a branch pipe(tube)；When sulfuric acid in waste liquid
When the concentration mass percent < 90% of root, determine that waste liquid can be used in recycling and recycle as absorbing liquid, therefore, in control
Waste liquid is transferred to the absorbing liquid by another branch pipe(tube) and recycles fluid reservoir by heart control valve, is recycled.
Further, the absorbing liquid reflux fluid reservoir is provided with absorbing liquid supply port and water supply port, also, the suction
It receives liquid reflux fluid reservoir outlet conduit and is divided into two branch pipes after one section, wherein a branch pipe is connect with first circulation water pump,
Another branch pipe is connect with second circulation water pump, two root canal roads of the first circulation water pump and the second circulation exit of pump
A root canal road is merged into again after one section to be connected with the swirl injection absorption tower.
Further, the bottom of the exhaust tower also sets up exhaust tower waste liquid outlet, and the waste liquid outlet passes through pipe
Road is connect with the sewage vent line.
Further, the swirl injection tower passes through upper spacer and lower clapboard is divided into and separating as gas discharge
Area, vent gas treatment area and blowdown recovery area；
The exhaust gas inlet on the swirl injection absorption tower and absorbing liquid import are located at the vent gas treatment area, at the tail gas
If reason area is additionally provided with dry-spray absorption tube, the top of the injection absorption tube is fastened on the upper spacer, and is protruded into
The lower part of the gas discharge area, the injection absorption tube is fastened on the lower clapboard, and protrudes into the blowdown recycling
Area.
The present invention is arranged in series by bag filter and swirl injection absorption tower, by exhaust gas solid particulate matter and
VOCs continuous processing is fallen.Wherein, 0.5 μm or more of solid particle is removed by the bag filter, predominantly rubber is close
The granule foreign such as carbon black generated during refining.
Further, the supporting plate for fixing the injection absorption tube is additionally provided in the vent gas treatment area；
The injection absorption tube is according to from center radially outward direction, including gas recovery pipe after centrally disposed purification
And it is set in the collet after the purification outside gas recovery pipe, the top of the collet is located at the top of the supporting plate along folder
The circumference of set is tangentially-arranged exhaust gas rotational flow inlet, and the circumference that the lower part of the collet is located at below the supporting plate along collet is cut
To being provided with absorbing liquid rotational flow inlet；
Wherein, the upper end of gas recovery pipe extend into the gas discharge area after the purification, and the collet is set in institute
The lower end for stating gas recovery pipe after purification, after the purification lower end of the lower end of gas recovery pipe and the collet there are one section away from
From, and the blowdown recovery area is protruded into the lower end of the collet.
Further, the injection absorption tube is multiple.
Further, absorbing liquid supply port and water supply port are additionally provided on absorbing liquid reflux fluid reservoir, for
Supply and supplement absorbing liquid in the absorbing liquid reflux fluid reservoir.
Present system at work, makes to form negative pressure in system by blower, exhaust gas will be made to enter the system, in institute
It states in swirl injection absorption tower, the vent gas treatment area that exhaust gas tangentially enters the swirl injection absorption tower from exhaust gas inlet is located at branch
The space on frame plate top.In operating process, in 2800-3200Pa, (preferably blower pressure control exists for blower pressure control
3000Pa), high pressure exhaust gas enters behind the swirl injection absorption tower and is located at the supporting plate top in the vent gas treatment area
Space forms fierce gas phase curl field, and in turn, exhaust gas continues through the exhaust gas rotation being arranged on the collet of the injection absorption tube
It flows into mouth to enter in the injection absorption tube, and is formed in the interior thereof cyclone.And absorbing liquid then passes through water pump and equally tangentially enters
The vent gas treatment area on the jetstream whirl absorption tower is located at the space of the supporting plate lower part, in operating process, controls absorbing liquid
Supply pressure is 0.1-0.4MPa (preferably absorbing liquid supply pressure is 0.3MPa), and highly pressurised liquid is formed after high pressure cyclone from being located at
The absorbing liquid import of the supporting plate lower space tangentially enters in the collet of the injection absorption tube, forms liquid cyclone.?
Inside the injection absorption tube, liquid cyclone is contacted since high speed rotation generates with gas cyclone, collides, is cut, and is formed countless
Partial size be 0.02-0.07mm absorbing liquid misty liquid droplets will have stink in exhaust gas so that gas liquid interfacial area increased dramatically
Group carry out physical absorption and chemical reaction absorption by the droplet of absorbing liquid, thus by the odor concentration in exhaust gas from 500
It drops within 50 above.Wherein, odor concentration is defined as, using original exhaust gas as master sample, then with tasteless air pair
The standard sample is diluted, and when being diluted to stink disappearance, diluted multiple is the concentration of foul smell.In the process of processing
In, the submicron order carbon black granules in exhaust gas equally can also be trapped by droplet, and since the centrifugal force that eddy flow generates acts on
It is discharged after being thrown out of by blowdown recovery area.And pass through processing and purified gas, tube hub is absorbed by the injection
Gas recovery pipe enter gas discharge area after, continue to convey toward subsequent technique.
It further, further include exhaust tower, for the air-flow being discharged at the top of the swirl injection absorption tower to be carried out air-liquid
Separation.
The present invention also provides the methods for using aforementioned system to carry out rubber internal mixing treating tail gas, comprising the following steps:
(1) exhaust gas is entered by pipeline from the gas access of bag filter, go in removing exhaust gas particle size range be 0.5 μm with
On solid particle after, the exhaust gas is transferred to the swirl injection from the gas vent at the top of the bag filter and absorbs
Tower；
(2) exhaust gas tangentially enters the swirl injection from the gas access on swirl injection absorption tower top and absorbs
The vent gas treatment area of tower, in the swirl injection absorption tower, processing of the exhaust gas Jing Guo the absorbing liquid makes the exhaust gas
In odor concentration drop within 50, while solid particle more than the exhaust gas sub-micron grade being produced by the absorbing liquid
Raw droplet trapping, the exhaust gas by purified treatment are discharged from the gas discharge area, the waste liquid generated in treatment process
It is discharged by the blowdown recovery area, into sewage vent line.
Further, further include by the gas discharge area discharge air-flow be pipelined to exhaust tower, carry out gas,
After liquid separation, purified gas is discharged.
Further, step (2) absorbing liquid tangentially enters the spray from the absorbing liquid import of the swirl injection tower
Absorption tower is penetrated, in the vent gas treatment area, the absorbing liquid is from described in the absorbing liquid rotational flow inlet entrance on the collet
Collet is formed the exhaust gas shearing of eddy flow, is dispersed into 200-600 microns of misty liquid droplets.
Further, two branches are set on the output channel of absorbing liquid reflux fluid reservoir, in two branches
Water circulating pump is respectively set, after the water circulating pump, two branches are merged into an output channel and spray to the eddy flow
It penetrates absorption tower and lends the absorbing liquid.
The beneficial effects of the present invention are:
1, system of the invention can be right simultaneously in combination with the structure of bag filter and swirl injection absorption tower
Solid particle and VOCs pollutant in rubber internal mixing tail gas realize improvement simultaneously, solve technical problem in the prior art；
2, system of the invention makes air-liquid form height in tower by the improvement to swirl injection absorption tower internal structure
The eddy flow of speed rotation carries out air-liquid collision, and since the increase of drop specific surface area has phenomenon of uprushing, this makes absorbing liquid and gas
There are mutual collaborations for chemisorption and physisorption between body；
3, system of the invention is by the improvement to swirl injection absorption tube structure, by carrying out structure on partitioned organization
Design, increase the disturbance and collision of the air-liquid in swirl injection absorption tube, increase regulation effect；
4, system of the invention is made by the way that molecular sieve adsorption layer and activated carbon adsorption layer are further arranged on partitioned organization
Present system is more obvious for the regulation effect of rubber internal mixing tail gas, for being for bag filter and swirl injection
The pollutant component that absorption tower can not be handled, swirl injection absorption tower of the invention can be by molecular sieve absorption, activated adoption, absorption
Physics, the chemical harnessing methods such as liquid chemical treatment, droplet absorption are effectively combined, and are made mutually to cooperate between these methods and be made
With reaching the optimum efficiency for rubber internal mixing treating tail gas；
5, system of the invention is in use, and due to the cooperation of eddy flow, the present invention finds out most suitable Processing tecchnics item
Part enables swirl injection absorption tower of the invention to adsorb molecular sieve absorption, activated adoption, adsorption liquid chemical treatment, droplet
Between synergy reach optimum state.
Figure of description
The process flow chart of one preferred embodiment of Fig. 1 present system；
A preferred embodiment profilograph on swirl injection absorption tower in Fig. 2 present system；
Fig. 3 sprays a preferred embodiment of absorption tube, and partitioned organization is reticular structure；
Fig. 4 sprays a preferred embodiment of absorption tube, has fin on the inside of partitioned organization；
Fig. 5 sprays a preferred embodiment of absorption tube, has nozzle on the inside of partitioned organization.
1- bag filter；2- swirl injection absorption tower；3- detects instrument；4- blower；5- exhaust tower；The reflux of 6- absorbing liquid
Fluid reservoir；7- first circulation water pump；8- second circulation water pump；211- sprays absorption tube；212- partitioned organization.
Specific embodiment
As shown in Figure 1, an a kind of preferred embodiment of rubber internal mixing treating tail gas system of the present invention, according to useless
Flow of air direction, the system successively include: bag filter 1, swirl injection absorption tower 2, blower 4 and exhaust tower 5；Wherein, institute
The bottom for stating swirl injection absorption tower 2 is provided with discard solution discharge port, is provided with inspection on the pipeline in the discard solution discharge port exit
Instrument 3 is surveyed, for detect the concentration of sulfate ion in discharge waste liquid, the pipeline is divided into two detecting 3 rear of instrument, and one
Fluid is transferred to sewage vent line by branch, and another is connected with absorbing liquid reflux fluid reservoir 6, the absorbing liquid reflux liquid storage
Tank 6 is additionally provided with absorbing liquid supply port and water supply port, for supplementing absorbing liquid into absorbing liquid reflux fluid reservoir 6, institute
The outlet conduit of absorbing liquid reflux fluid reservoir 6 bifurcated after one section is stated, wherein one connect with first circulation water pump 7,
Another connect with second circulation water pump 8, the pipeline warp drawn from the first circulation water pump 7 and the second circulation water pump 8
One is merged into after one section, flows back into the swirl injection absorption tower 2.Wherein, when first circulation water pump 7 and second circulation water pump
Any one of 8 when needing to overhaul, then another can continue to supply absorbing liquid to the swirl injection absorption tower 2, can
It realizes being carried out continuously for whole processing technology, avoids energy waste caused by frequently stopping, driving.
Fig. 2 is a kind of preferred embodiment on swirl injection absorption tower, wherein the swirl injection tower 2 leads to from top to bottom
It crosses upper spacer and lower clapboard is divided into and separating as gas discharge area, vent gas treatment area and blowdown recovery area；
The exhaust gas inlet on the swirl injection absorption tower 2 and absorbing liquid import are located at the vent gas treatment area, the tail gas
If treatment region is additionally provided with dry-spray absorption tube, the top of the injection absorption tube is fastened on the upper spacer, and is stretched
Enter the gas discharge area, the lower part of the injection absorption tube is fastened on the lower clapboard, and is protruded into the blowdown and returned
Receive area.The supporting plate for fixing the injection absorption tube 211 is additionally provided in the vent gas treatment area；
Fig. 3 is a kind of preferred embodiment for spraying absorption tube 211, and the injection absorption tube 211 is according to outside from center
Radial direction including gas recovery pipe after centrally disposed purification and is set in folder after the purification outside gas recovery pipe
Set, the top of the collet be located at the top of the supporting plate along collet circumference it is tangentially-arranged have an exhaust gas rotational flow inlet, it is described
Circumference of the lower part of collet below the supporting plate along collet is tangentially-arranged absorbing liquid rotational flow inlet；The injection absorbs
The collet position of pipe is fixed on the supporting plate, wherein the exhaust gas inlet is located at the collet and is located on the supporting plate
The position in portion, the absorbing liquid import are located at the position that the collet is located at the supporting plate lower part.
Wherein, the upper end of gas recovery pipe extend into the gas discharge area after the purification, and the collet is set in institute
The lower end for stating gas recovery pipe after purification, after the purification lower end of the lower end of gas recovery pipe and the collet there are one section away from
From, and the blowdown recovery area is protruded into the lower end of the collet.The collet of the injection absorption tube 211 includes two layers: being arranged
Gas cyclone chuck layer after the purification outside gas recovery pipe；With the absorbing liquid being set in outside the gas cyclone chuck layer
Eddy flow chuck layer；Wherein, liquid is allowed to pass through between the gas cyclone chuck layer and the absorbing liquid eddy flow chuck layer
Partitioned organization 212, the partitioned organization are reticular structure.
When the system is worked, blower 4 first starts, and then restarts water pump, makes the absorbing liquid from the eddy flow
The absorbing liquid import of spray absorption tower 2 tangentially enters the region being located at below the supporting plate in the vent gas treatment area；Due to
The subnormal ambient that blower 4 provides makes exhaust gas first pass through bag filter 1 into system, the bag filter 1 by 0.5 μm with
On solid particle remove, exhaust gas after dedusting tangentially enters described from the exhaust gas inlet on the swirl injection absorption tower 2
It is located at the region above the supporting plate in the vent gas treatment area on swirl injection absorption tower 2.When exhaust gas and absorbing liquid all enter
Behind the vent gas treatment area on the swirl injection absorption tower 2, due to the separation of supporting plate, make exhaust gas in the area on the supporting plate top
Domain forms gas phase eddy flow, and absorbing liquid forms liquid phase eddy flow in the region of the supporting plate lower part.Wherein, gas phase eddy flow makes exhaust gas
Tangentially enter from the exhaust gas rotational flow inlet for spraying absorption tube 211 described in several, and liquid phase eddy flow makes absorbing liquid from several institutes
The absorbing liquid rotational flow inlet for stating injection absorption tube 211 tangentially enters, and gas phase eddy flow and liquid are formed in the collet of injection absorption tube
The collision of phase eddy flow, fierce eddy flow and collision make absorbing liquid form droplet.During collision, droplet is due to specific surface area
Being significantly greatly increased, there is super expected physisorption to reach in combination with the chemical harnessing effect of liquid absorption element for rubber
The efficient process of glue mixing tail gas, while particulate matter therein and stink odor being removed, realize that entire rubber internal mixing tail gas is controlled
One-part form, the continuous treatment of science and engineering skill.In injection absorption tube 211, exhaust gas after collision is since eddy flow and density are low, from net
Gas recovery pipe rises to the gas discharge area after change, and then is gone out by the gas of the tower top on the swirl injection absorption tower 2
After mouth is transported to the exhaust tower 5, net gas is discharged from the top of the exhaust tower 5.Droplet in injection absorption tube 2 passes through mist
Collision between drop and larger drop is formed with the collision of injection 211 inner wall of absorption tube, drop passes through under gravity
After heavy, it is discharged to the blowdown recovery area from the outlet of the collet lower end, it is then logical from 2 bottom of swirl injection absorption tower
Piping discharge.Under optimal treatment process, the pressure condition of gas phase eddy flow and liquid phase eddy flow is to control absorbing liquid supply pressure
For 0.3Mpa, control blower pressure is 3000Pa.
The detection for carrying out sulfate ion concentration to the waste liquid in pipeline by the detection instrument 3, when sulfuric acid in waste liquid
When the concentration mass percent of root >=90%, waste liquid is transferred to sewage vent line by a branch pipe(tube)；When sulfuric acid in waste liquid
When the concentration mass percent < 90% of root, determines that waste liquid can be used in recycling and recycle as absorbing liquid, therefore, pass through control
Waste liquid is transferred to the absorbing liquid by another branch pipe(tube) and recycles fluid reservoir by the opening and closing that control valve is carried out at center processed, is returned
It receives and utilizes.
It is knot with holes in the partitioned organization 212 if Fig. 4 is another preferred embodiment for spraying absorption tube 211
When structure, the side on the lower of the open end in the hole is additionally provided with towards gas recovery pipe direction after the purification and to tilt upward
Fin.
Fig. 5 is another preferred embodiment for spraying absorption tube 211, is structure with holes in the partitioned organization 212
When, the open end in the hole, the nozzle that protrusion is additionally provided with towards gas recovery pipe direction after the purification.It is highly preferred that institute
212 structure of subregion knot is stated towards the molecular sieve absorption for being additionally provided with interval configuration on the inner wall in gas recovery pipe direction after the purification
Layer and activated carbon adsorption layer.The design of the partitioned organization 212 can further enhance the air-liquid in the injection absorption tube
Collision, the improvement by carrying out structure on the partitioned organization can further enhance gas and liquid in the injection absorption tube
The disturbance of body, to greatly increase the generation of droplet, when the partial size of droplet reaches 200-210 microns, the ratio of droplet
Surface area increases suddenly, and present system is made super expected treatment effect occur for the improvement of rubber internal mixing tail gas, odor concentration into
One step is reduced to the range of 55-50.Since droplet refinement increases the specific surface area of droplet, so that in gas, liquid contact, touching
During hitting, not only absorbing liquid can be chemically treated gas, while bag filter can also can not be removed
Fine particle is adsorbed onto the droplet.Meanwhile by the setting of molecular sieve adsorption layer and activated carbon adsorption layer, make in gas not
Other pollutants for being easily adsorbed liquid and bag filter removal are removed by physisorption.
Wherein, the absorbing liquid is preferably alkalescent liquid or alkalescence buffer solution, including aluminium hydroxide or hydroxide
Any one in ferrous solution.The mass percent concentration of the absorbing liquid is preferably in 0.01-0.1%.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the present invention should be subject to the claims.
Claims (10)
1. a kind of rubber internal mixing treating tail gas system, which is characterized in that according to exhaust gas flow direction, the system successively includes:
Bag filter (1), the solid particle that the particle size range for going in removing exhaust gas is 0.5 μm or more；
Swirl injection absorption tower (2), the exhaust gas inlet of the swirl injection absorption tower (2) and giving up for the bag filter (1)
Gas outlet is connected, for going in removing exhaust gas particle size range in the particle and malodor components of submicron order；
Wherein, it is provided with waste gas outlet at the top of the swirl injection absorption tower (2), bottom is provided with discard solution discharge port, described
Detection instrument (3) is provided on the pipeline in discard solution discharge port exit, for detecting the concentration of sulfate ion in discharge waste liquid,
The pipeline is divided into two at detection instrument rear, and fluid is transferred to sewage vent line by one, and another is returned with absorbing liquid
Stream fluid reservoir (6) is connected, and absorbing liquid reflux fluid reservoir (6) is supplied by water pump to the swirl injection absorption tower (2)
The absorbing liquid；
One end of blower (4), the blower (4) is gone out by the exhaust gas that pipeline is connected at the top of the swirl injection absorption tower (1)
Mouthful, the other end of the blower (4) is connected to exhaust tower (5), and the purification gas after administering passes through the exhaust tower (5)
Top discharge.
2. governing system according to claim 1, which is characterized in that absorbing liquid reflux fluid reservoir (6) is provided with suction
Liquid supply port and water supply port are received, also, absorbing liquid reflux fluid reservoir (6) outlet conduit is divided into two branch after one section
Pipe, wherein a branch pipe is connect with first circulation water pump (7), another branch pipe is connect with second circulation water pump (8), and described first
Water circulating pump (7) and the second circulation water pump (8) outlet two root canal roads merged into again after one section a root canal road with
The swirl injection absorption tower (2) is connected.
3. governing system according to claim 1 or 2, which is characterized in that the bottom of the exhaust tower (5) also sets up exhaust
Tower waste liquid outlet, the waste liquid outlet are connect by pipeline with the sewage vent line.
4. governing system according to claim 1, which is characterized in that the swirl injection tower (2) passes through
Partition and lower clapboard, which are divided into, to be separated as gas discharge area, vent gas treatment area and blowdown recovery area；
The exhaust gas inlet on the swirl injection absorption tower and absorbing liquid import are located at the vent gas treatment area, the vent gas treatment area
If being additionally provided with dry-spray absorption tube (211), the top of injection absorption tube (211) is fastened on the upper spacer,
And the gas discharge area is protruded into, the lower part of injection absorption tube (211) is fastened on the lower clapboard, and protrudes into institute
State blowdown recovery area.
5. governing system according to claim 4, which is characterized in that be additionally provided in the vent gas treatment area for fixing
The supporting plate of injection absorption tube (211)；
The injection absorption tube (211) is recycled according to from center radially outward direction including gas after centrally disposed purification
Manage and be set in the collet after the purification outside gas recovery pipe, the top of the collet, which is located at, tangentially-arranged has exhaust gas eddy flow
Import is additionally provided with tangentially-arranged absorbing liquid rotational flow inlet；The collet position of injection absorption tube (211) is fixed on described
On supporting plate, wherein the exhaust gas inlet is located at the position that the collet is located at the supporting plate top, the absorbing liquid import
It is located at the position of the supporting plate lower part positioned at the collet；
Wherein, the upper end of gas recovery pipe extend into the gas discharge area after the purification, and the collet is set in described net
The lower end of gas recovery pipe after change, after the purification lower end of the lower end of gas recovery pipe and the collet there are a distance,
And the blowdown recovery area is protruded into the lower end of the collet.
6. governing system according to claim 5, which is characterized in that the injection absorption tube is multiple.
7. governing system according to claim 1-6, which is characterized in that further include exhaust tower, being used for will be described
The air-flow being discharged at the top of swirl injection absorption tower carries out air-liquid separation.
8. a kind of method with the described in any item Systematic control rubber internal mixing tail gas of claim 1-7, which is characterized in that including
Following steps:
(1) exhaust gas is entered by pipeline from the gas access of bag filter, and going particle size range in removing exhaust gas is 0.5 μm or more
After solid particle, the exhaust gas is transferred to the swirl injection absorption tower from the gas vent at the top of the bag filter；
(2) exhaust gas tangentially enters the swirl injection absorption tower from the gas access on swirl injection absorption tower top
Vent gas treatment area, in the swirl injection absorption tower, processing of the exhaust gas Jing Guo the absorbing liquid makes in the exhaust gas
Odor concentration drops within 50, while solid particle more than the exhaust gas sub-micron grade being generated by the absorbing liquid
Droplet trapping, the exhaust gas by purified treatment are discharged from the gas discharge area, and the waste liquid generated in treatment process passes through
The blowdown recovery area discharge, into sewage vent line.
9. according to the method described in claim 8, it is characterized in that, further including passing through the air-flow of gas discharge area discharge
Pipeline discharges purified gas after carrying out air-liquid separation to exhaust tower.
10. method according to claim 8 or claim 9, which is characterized in that step (2) absorbing liquid is from the swirl injection
The absorbing liquid import of tower tangentially enters the spray absorption tower, and in the vent gas treatment area, the absorbing liquid is from the collet
The absorbing liquid rotational flow inlet enter the collet, be formed eddy flow the exhaust gas shearing, be dispersed into 200-600 microns
Misty liquid droplets.
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| CN111632461A (en) * | 2020-06-03 | 2020-09-08 | 龙永南 | Rubber banburying tail gas treatment system and method |
| WO2022049917A1 (en) * | 2020-09-04 | 2022-03-10 | 富士電機株式会社 | Exhaust gas treatment device |
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| CN109939528B (en) | 2024-07-19 |
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