CN116899345A - Modified asphalt tail gas purification treatment system and method - Google Patents

Modified asphalt tail gas purification treatment system and method Download PDF

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Publication number
CN116899345A
CN116899345A CN202310785735.9A CN202310785735A CN116899345A CN 116899345 A CN116899345 A CN 116899345A CN 202310785735 A CN202310785735 A CN 202310785735A CN 116899345 A CN116899345 A CN 116899345A
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CN
China
Prior art keywords
liquid
plate
tail gas
ventilation
modified asphalt
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CN202310785735.9A
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Chinese (zh)
Inventor
邓天宇
王振
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Wuhan Silite Highway Materials Co ltd
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Wuhan Silite Highway Materials Co ltd
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Priority to CN202310785735.9A priority Critical patent/CN116899345A/en
Publication of CN116899345A publication Critical patent/CN116899345A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B01D47/08—Spray cleaning with rotary nozzles
    • 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
    • B01D53/14—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 by absorption
    • B01D53/1487—Removing organic 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
    • B01D53/14—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 by absorption
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • 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
    • B01D53/14—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 by absorption
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • B01D53/185—Liquid distributors

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Treating Waste Gases (AREA)

Abstract

The application relates to the technical field of tail gas purification, and particularly discloses a modified asphalt tail gas purification treatment system and method. The ventilation plate is arranged in the purifying box, and a plurality of ventilation grooves for the tail gas to pass through are formed in the side surface of the ventilation plate; the plurality of spraying groups are arranged, each spraying group comprises a plurality of rotary spray heads arranged on the side wall of the ventilation plate, and the rotation axes of the rotary spray heads are intersected with the vertical direction; the liquid guide component is provided with a plurality of spraying groups corresponding to the plurality of spraying groups and is used for guiding the spraying liquid sprayed upwards by the rotary spray head and enabling the spraying liquid after the guiding to form a rain curtain on the surface of the ventilation plate; the liquid supply assembly is used for supplying liquid to the plurality of rotary spray heads. The application has the effect of enabling the sprayed spray liquid to contact with the tail gas for multiple times so as to enable the spray liquid to adsorb and purify the asphalt tail gas for multiple times.

Description

Modified asphalt tail gas purification treatment system and method
Technical Field
The application relates to the technical field of tail gas purification, in particular to a modified asphalt tail gas purification treatment system and method.
Background
The modified asphalt is asphalt binder which is prepared by adding external additives such as rubber, resin, high molecular polymer and the like or adopting measures such as slightly oxidizing the asphalt to improve the performance of asphalt or asphalt mixture. In the production and processing process of asphalt, the impurities such as the asphalt, the impurities such as suspended particles, dirty oil smoke and toxic aromatic substances are always required to be continuously heated and stirred, and tail gas with the impurities such as suspended particles, dirty oil smoke and toxic aromatic substances is generated in the treatment process; in order to reduce the influence of the tail gas on the environment, the tail gas of the modified asphalt is often required to be purified.
At present, a plurality of methods are adopted in the industry to spray and purify tail gas, such as adopting an exhaust gas spray tower to spray and treat the tail gas, wherein a spray pipe is generally suspended in the exhaust gas spray tower, and a plurality of spray heads are fixed on the spray pipe. When the tail gas is introduced into the waste gas spray tower, the spray heads in the waste gas spray tower spray the spray liquid downwards on the tail gas, so that the spray liquid captures and filters impurities in the tail gas. However, because the spray header has a small spray range, the contact process of the downward sprayed spray liquid and the tail gas is short, so that the capture effect of the spray liquid on impurities is limited, and the purification effect of the waste gas spray tower is poor.
Disclosure of Invention
The application provides a modified asphalt tail gas purification treatment system and method for improving the purification effect of spray liquid on asphalt tail gas.
The application provides a modified asphalt tail gas purification treatment system which adopts the following technical scheme:
the modified asphalt tail gas purifying treatment system comprises a purifying box, and an air supply pipe and an air outlet pipe which are communicated with the inner cavity of the purifying box, wherein the purifying box is provided with: the ventilation plate is arranged in the purifying box and positioned between the air supply pipe and the air outlet pipe, and a plurality of ventilation grooves for the tail gas to pass through are formed in the plate surface of the ventilation plate at intervals along the vertical direction; the spraying groups are arranged corresponding to the ventilation grooves, each spraying group comprises a plurality of rotary spray heads arranged on the ventilation plate, the rotation axes of the rotary spray heads are intersected with the vertical direction, and gaps are reserved between the liquid outlets of the rotary spray heads and the side surfaces of the ventilation plate; the liquid guide assemblies are arranged one by one corresponding to the spray groups and are used for guiding the spray liquid sprayed to the liquid guide assemblies, and a rain curtain is formed on at least one side of the ventilation plate; and the liquid supply assembly is connected with the spraying group and is used for supplying liquid to the rotary spray head.
Through adopting above-mentioned technical scheme, when carrying out pitch tail gas's purification treatment, the pitch tail gas that flows gets into the purifying box along the gas pipe and carries out purification treatment, then the tail gas that purifies is discharged along the outlet duct. In the tail gas purification process, at first, tail gas is through ventilative groove on the ventilative board, supplies liquid to rotatory nozzle through the confession liquid subassembly that sets up, and then rotatory nozzle carries out the jet-propelled purification to tail gas in ventilative board one side to reduce the impurity in the tail gas by a wide margin. Meanwhile, the spray liquid sprayed to the upper part of the ventilation groove is guided by the liquid guide component, so that after the tail gas is purified once by part of the spray liquid, a first-level rain curtain is formed on the surface of the ventilation plate, and the tail gas passing through the ventilation groove is purified again. In addition, because the rain curtain that top drain subassembly department formed will flow to the drain subassembly of below under the action of gravity in, then flow out in the drain subassembly of below diaphragm upper surface to form the second grade rain curtain of filtering tail gas, this setting up the effectual contact number of times and the contact range that have improved spray liquid and tail gas, improved the purifying effect of spray liquid to pitch tail gas.
Optionally, the liquid guiding assembly includes: the transverse plate is arranged on the surface of the ventilation plate and above the corresponding ventilation groove, a depression angle larger than 0 exists between the lower surface of the transverse plate and the horizontal plane, and the orthographic projection of the rotary spray head on the horizontal plane is positioned in the orthographic projection of the transverse plate on the horizontal plane; the air guide plate is arranged on the side wall of the air guide plate and is positioned between the air guide groove and the transverse plate, the distance between one side surface of the air guide plate far away from the surface of the air guide plate and the air guide plate is smaller than the distance between the rotary spray head and the side surface of the air guide plate, and a plurality of liquid outlet holes for spraying liquid to pass through are formed in the upper end surface of the air guide plate.
Through adopting above-mentioned technical scheme, the diaphragm that sets up can separate the liquid drop of rotatory nozzle upwards blowout and keep off, and then part is kept off the direction of the slope surface of liquid that spouts of baffle and removes to ventilative board surface under self inertia and diaphragm, and then spray liquid receives the promotion of follow-up spray liquid and carries out the whereabouts down along ventilative board surface under self gravity effect, when spray liquid landing to guide plate department, part spray liquid will flow along the play liquid hole department on the guide plate to form the rain curtain that strengthens purifying tail gas.
Optionally, the fixed installation strip that is provided with in ventilative board lateral wall department of diaphragm lower surface, installation strip surface mounting has a plurality of spacing, a plurality of the range direction of spacing is unanimous with the extending direction of diaphragm.
Through adopting above-mentioned technical scheme, because rotatory nozzle spun sprays liquid and spouts to diaphragm department, the direction of movement of part sprays liquid often has certain contained angle with the diaphragm surface, for avoiding spraying liquid under self inertial action, sprays liquid and removes to diaphragm one end along the diaphragm surface and form and pile up, and for this reason, the spacing is interrupted to spraying liquid through a plurality of spacing that set up keeps off to reduce and spray liquid and concentrate the accumulational condition, be convenient for spray liquid and form comparatively even rain curtain on the ventilative board surface.
Optionally, a plurality of drainage channels communicated with the inner top surface of the ventilation groove are formed in the position of the installation strip on the surface of the ventilation plate, and perforations are formed in the outer wall of the installation strip; the cross plate is slidably mounted on the ventilation plate, a driving assembly is arranged on the purifying box and used for driving the cross plate to move, and the perforation is aligned with or staggered with the drainage hole.
Through adopting above-mentioned technical scheme, the drive assembly who sets up can drive spacing removal to make perforation and drainage passageway on the installation strip be linked together, thereby when spraying liquid water conservancy diversion to installation strip department, spraying liquid can also follow perforation and drainage passageway and flow through to ventilative inslot, thereby carry out the wetting of ventilative inslot wall, wash through spraying liquid.
Optionally, the driving assembly comprises an adjusting rod, an elastic piece and a linear power piece; the adjusting rod is positioned at the inner side wall of the purifying box, a pressing block is fixed at the periphery of the adjusting rod, and an inclined surface is arranged at one side of the pressing block, which faces the transverse plate; the linear power piece is fixed on the purifying box and is connected with the adjusting rod and used for driving the adjusting rod to lift and slide so as to enable the inclined plane of the pressing block to press the transverse plate; the elastic connection is arranged on one side, far away from the push plate, of the mounting strip and is used for elastically connecting the mounting strip with the inner wall of the purifying box.
By adopting the technical scheme, the arranged linear power piece can drive the adjusting rod to move, so that the pressing block presses the transverse plate, the mounting strip moves along the direction away from the adjusting rod, and the perforation is communicated with the drainage channel; when the linear power piece drives the adjusting rod to move reversely, so that the pressing block does not press the transverse plate any more, the mounting bar moves under the restoring force of the elastic piece, and the transverse plate returns to the original position, so that the perforation and the drainage channel are misplaced, and the sealing of the drainage channel is realized.
Optionally, a flange is fixedly arranged at the upper edge of the periphery of the guide plate, and a storage cavity is enclosed between the flange and the guide plate.
Through adopting above-mentioned technical scheme, enclose into between turn-ups and the guide plate that set up and deposit the chamber to prestore through prestore the chamber to the spraying liquid of flowing, make the spraying liquid of depositing the intracavity flow along the play liquid hole and form stable rain curtain.
Optionally, the ventilation groove is curved in ventilation board side extension, a plurality of rotatory nozzle dislocation in the group of spraying arrange in ventilation groove extending direction's both sides.
Through adopting above-mentioned technical scheme, ventilative groove is crooked extension setting, the flow through area that can effectual increase tail gas, and the setting that a plurality of rotatory nozzle dislocation were arranged can be more even spray the purification to the tail gas of ventilative groove department.
Optionally, the purifying box is provided with the air-blower outward, the air-outlet end of air-blower with purifying box intercommunication, just the air-outlet end of air-blower is towards the outlet duct.
Through adopting above-mentioned technical scheme, the air blower that sets up can adjust the flow velocity of purifying box internal exhaust, improves the purification efficiency of tail gas.
Optionally, a filter screen is covered on the air inlet end of the air blower.
Through adopting above-mentioned technical scheme, the filter screen that sets up can carry out filtration treatment to the tail gas of the leading-in purifying box of air-blower, and the air of guarantee blast into purifying box is clean.
On the other hand, the application also provides a modified asphalt tail gas purifying treatment method, which comprises the steps of supplying liquid to the rotary spray head through the liquid supply assembly; and introducing modified asphalt tail gas into the air supply pipe.
By adopting the technical scheme, in the using process, the rotary spray head sprays spray liquid so as to adsorb and filter impurities in the tail gas passing through the ventilation groove; then the spraying liquid sprayed upwards from the rotary spray head is blocked through the transverse plate, the blocked spraying liquid flows downwards along the surface of the ventilation plate, and the spraying liquid flowing through the liquid outlet holes of the guide plate forms a first-stage rain curtain for filtering tail gas on the surface of the ventilation plate; the rain curtain formed at the upper liquid guide assembly continuously flows into the lower liquid guide assembly under the action of gravity, and then flows out of the upper surface of the transverse plate in the lower liquid guide assembly to form the secondary rain curtain for filtering tail gas.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the liquid supply assembly is arranged for supplying liquid to the rotary spray head, and then the rotary spray head performs rotary spraying purification on the tail gas on one side of the ventilation plate so as to greatly reduce impurities in the tail gas. Meanwhile, the spray liquid which is sprayed to the upper part of the ventilation groove in a rotary way is guided by the liquid guide component, so that a rain curtain is formed on the surface of the ventilation plate after the part of the spray liquid is subjected to primary purification of the tail gas, and the tail gas passing through the ventilation groove is subjected to secondary purification treatment, so that the contact times and contact range of the spray liquid and the tail gas are improved, and the purification effect of the spray liquid on asphalt tail gas is improved;
2. the transverse plate can separate the liquid drops sprayed upwards from the rotary spray head, then part of the separated liquid drops move to the surface of the ventilation plate under the self inertia and the guidance of the inclined surface of the transverse plate, then the liquid drops slide downwards along the surface of the ventilation plate under the action of the follow-up liquid drops and under the self gravity, and when the liquid drops to the guide plate, part of the liquid drops flow out along the liquid outlet on the guide plate, so that a rain curtain for strengthening and purifying tail gas is formed;
3. the drive assembly who sets up can drive the installation strip and remove to make perforation and drainage passageway on the installation strip be linked together, thereby when spraying liquid water conservancy diversion to installation strip department, spraying liquid can also follow perforation and drainage passageway and flow through to ventilative groove in, thereby carry out the wetting of ventilative inslot wall, wash through spraying liquid.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present application;
FIG. 2 is a schematic view showing the internal structure of the purifying tank;
FIG. 3 is a schematic diagram showing the structure of the aeration panel, the driving assembly, and the rotary jetting head;
FIG. 4 is a schematic cross-sectional structural view of a gas permeable panel;
FIG. 5 is a schematic diagram of a liquid supply assembly and a rotary sprayer.
Reference numerals: 1. a purifying box; 11. an air supply pipe; 12. an air outlet pipe; 13. a liquid discharge pipe; 2. a ventilation plate; 21. a ventilation groove; 22. a drainage channel; 3. a spray group; 31. rotating the spray head; 4. a liquid guiding component; 41. a cross plate; 411. a slide block; 42. a deflector; 421. a liquid outlet hole; 422. flanging; 43. a mounting bar; 431. perforating; 44. a limit bar; 5. a liquid supply assembly; 51. a liquid supply pump; 52. a liquid inlet pipe; 53. a liquid outlet main pipe; 54. a liquid outlet branch pipe; 6. a drive assembly; 61. an adjusting rod; 611. pressing the blocks; 62. an elastic member; 63. a linear power member; 7. a blower; 71. a filter screen; 8. a controller; 9. an electric control liquid feeding head.
Detailed Description
The application is described in further detail below with reference to fig. 1-5.
The embodiment of the application discloses a modified asphalt tail gas purifying treatment system. Referring to fig. 1, 2 and 3, the modified asphalt tail gas purifying treatment system comprises a purifying box 1, an air supply pipe 11 and an air outlet pipe 12 which are communicated with the inner cavity of the purifying box 1, wherein an air permeable plate 2, a spraying group 3, a liquid guide component 4 and a liquid supply component 5 are arranged on the purifying box 1. The inner bottom wall of the purifying box 1 is communicated with a liquid discharge pipe 13, the ventilation plate 2 is vertically arranged in the purifying box 1, the periphery of the ventilation plate is in sealing fit with the inner wall of the purifying box 1, and a plurality of ventilation grooves 21 for tail gas to pass through are formed in the side face of the ventilation plate at intervals along the vertical direction. The spraying groups 3 are provided with a plurality of corresponding ventilating slots 21, each spraying group 3 comprises a plurality of rotary spray heads 31 arranged on the side wall of the ventilating plate 2, the rotation axes of the rotary spray heads 31 are intersected with the vertical direction, and gaps are reserved between the liquid outlets of the rotary spray heads 31 and the side surface of the ventilating plate 2; the liquid guide component 4 is provided with a plurality of corresponding a plurality of spraying groups 3, and the liquid guide component 4 is used for guiding the spraying liquid sprayed to the liquid guide component 4 and forming a rain curtain on at least one side of the ventilation plate 2. And the liquid supply assembly 5 is connected with the spray set 3 for supplying liquid to the plurality of rotary spray heads 31.
Specifically, in this embodiment, the ventilation plate 2 divides the inner cavity of the purifying box 1 into two chambers, so that the flowing tail gas flows along the direction from the air supply pipe 11 to the ventilation groove 21 and then to the air outlet pipe 12. In order to improve the exhaust gas conveying efficiency at the position of the ventilation plate 2, the ventilation groove 21 is bent and extended at the side surface of the ventilation plate 2, so that the length of the ventilation groove 21 is greatly prolonged. The liquid guide components 4 and the spraying groups 3 are positioned on the same side of the thickness direction of the ventilation plate 2; in other embodiments, the plurality of liquid guiding assemblies 4 and the plurality of spraying groups 3 are symmetrically disposed on two sides of the thickness direction of the ventilation plate 2. The plurality of rotary spray heads 31 in the spray group 3 are arranged on both sides of the extension direction of the ventilation groove 21 in a staggered manner.
Further, referring to fig. 3 and 4, in the present embodiment, the liquid guiding assembly 4 includes a cross plate 41 and a baffle 42, the cross plate 41 is disposed on a side wall of the ventilation plate 2 and located above the ventilation slot 21, a depression angle greater than 0 exists between a lower surface of the cross plate 41 and a horizontal plane, an orthographic projection of the rotary spray head 31 on the horizontal plane is located in an orthographic projection of the cross plate 41 on the horizontal plane, and a lower surface thereof is used for blocking spray liquid emitted upward by the rotary spray head 31. Further, the upper surface of the cross plate 41 is inclined downward in the direction from the ventilation plate 2 to the cross plate 41.
The baffle 42 is disposed on the sidewall of the air permeable plate 2 and between the air permeable groove 21 and the transverse plate 41, the distance between the side surface of the baffle 42 far away from the surface of the air permeable plate 2 and the air permeable plate 2 is smaller than the distance between the rotary nozzle 31 and the side surface of the air permeable plate 2, and a plurality of liquid outlet holes 421 for the spray liquid to pass through are formed on the upper end surface of the baffle 42.
In another embodiment, the liquid guiding component 4 comprises a guide cover fixed on the side wall of the ventilation board 2, the guide cover is located above the ventilation groove 21, and the lower end surface of the guide cover is an intrados surface for guiding the spraying liquid sprayed by the rotary spray head 31 to the side wall of the ventilation board 2.
Further, referring to fig. 3 and 4, in the process of spraying the spraying liquid sprayed from the rotary spray head 31 onto the transverse plate 41, a certain angle is always formed between the moving direction of part of the spraying liquid and the surface of the transverse plate 41, so as to prevent the spraying liquid from moving along the surface of the transverse plate 41 to one end of the transverse plate 41 under the action of self inertia to form accumulation, therefore, the mounting strip 43 is fixedly arranged on the lower surface of the transverse plate 41 at the side wall of the ventilation plate 2, a plurality of limit strips 44 are fixed on the surface of the mounting strip 43, and the arrangement direction of the plurality of limit strips 44 is consistent with the extending direction of the transverse plate 41.
Further, a flange 422 is fixedly arranged at the upper edge of the periphery of the guide plate 42, and a storage cavity is defined between the flange 422 and the guide plate 42. The flowing spray liquid is pre-stored through the pre-storage cavity, so that the spray liquid in the storage cavity flows out along the liquid outlet 421 and forms a stable rain curtain.
Further, as the exhaust gas passes through the ventilation groove 21, impurities in the exhaust gas may adhere to the inner wall of the ventilation groove 21; therefore, in order to wet and clean the ventilation slots 21, and also to further filter the exhaust gas flowing through the ventilation slots 21, the surface of the ventilation plate 2 is provided with a plurality of drainage channels 22 communicating with the inner top surface of the ventilation slots 21 at the mounting bar 43, and the outer wall of the mounting bar 43 is correspondingly provided with perforations 431. The cross plate 41 is slidably mounted on the ventilation plate 2, and a driving assembly 6 for driving the cross plate 41 to move is arranged in the purifying box 1, so that the mounting bar 43 is moved by the driving assembly 6, and the through holes 431 are aligned with or staggered from the drainage channels 22.
Specifically, a chute is formed on the outer side wall of the ventilation board 2, a slide block 411 is fixed on one side of the transverse board 41, and the slide block 411 is slidably mounted in the chute along the length direction of the ventilation board 2. In the present embodiment, the driving assembly 6 includes an adjustment lever 61, an elastic member 62, and a linear power member 63; the linear power member 63 may be any one of an electric push rod, an air cylinder or a hydraulic rod, and in this embodiment, the linear power member 63 is selected as the electric push rod. The electric push rod is vertically fixed on the outer wall of the upper end of the purifying box 1.
The adjusting rod 61 is positioned at an inner side wall of the purifying box 1, the upper end of the adjusting rod penetrates through the outer wall of the purifying box 1, and the upper end of the adjusting rod is fixedly connected with the output end of the electric push rod; a plurality of pressing blocks 611 are fixed on the circumferential side of the adjusting lever 61 at intervals along the longitudinal direction thereof, the plurality of pressing blocks 611 correspond to the plurality of cross plates 41 one by one, and the pressing blocks 611 are provided with inclined surfaces toward one side of the cross plates 41. The elastic member 62 is disposed on a side of the transverse plate 41 away from the adjusting rod 61, and is used for elastically connecting the transverse plate 41 with the inner wall of the purifying box 1, and the elastic member 62 may be any one of a spring, a shrapnel and an elastic pad.
In another embodiment, the driving assembly 6 includes a plurality of cylinders, the cylinders are in one-to-one correspondence with the plurality of transverse plates 41, the cylinders are fixed on the purifying box 1, the piston ends of the cylinders are fixedly connected with one end of the transverse plates 41, and the extending and contracting directions of the piston ends of the cylinders are consistent with the sliding directions of the transverse plates 41.
Referring to fig. 1 and 2, it is considered that the flow rate of the asphalt tail gas flowing from the air supply pipe 11 into the purge bin 1 is relatively slow and relatively constant; for this reason, the bottom surface of the purifying box 1 is communicated with the blower 7 at one side of the ventilation plate 2 close to the air outlet pipe 12, the air inlet end of the blower 7 faces the outer wall of the purifying box 1, the air outlet end of the blower 7 faces the air outlet pipe 12, and the air inlet end of the blower 7 is covered with the filter screen 71. Further, be fixed with controller 8 on purifying box 1 outer wall, controller 8 and air-blower 7 electrical signal connection, controller 8 can control the start-stop and the blast intensity of air-blower 7.
Further, referring to fig. 5, in order to supply liquid to the plurality of rotary sprayers 31, the liquid supply module 5 includes a liquid supply pump 51 fixed on the purifying tank 1, a liquid inlet pipe 52 connected to a liquid inlet end of the liquid supply pump 51, and a liquid outlet main pipe 53 connected to a liquid outlet end of the liquid supply pump 51, wherein the liquid supply pump 51 is electrically connected to the controller 8, the liquid outlet main pipe 53 is connected to a plurality of liquid outlet branch pipes 54 through an adapter, and the liquid outlet branch pipes 54 are communicated with liquid inlet ports of the rotary sprayers 31. Further, an electric control liquid feeding head 9 is communicated with the liquid feeding pipe 52, the electric control liquid feeding head 9 is connected with the controller 8 in an electric signal mode, an adding cylinder is loaded on the electric control liquid feeding head 9, the electric control liquid feeding head 9 can be controlled by the controller 8 to communicate or close the adding cylinder with the liquid feeding pipe 52, and cleaning additive liquid or other chemical agents in the adding cylinder are quantitatively pressed into the liquid feeding pipe 52.
The implementation principle of the modified asphalt tail gas purification treatment system provided by the embodiment of the application is as follows: when the asphalt tail gas is purified, the flowing asphalt tail gas enters the purifying box 1 along the air supply pipe 11 for purifying treatment, and then the purified tail gas is discharged along the air outlet pipe 12. In the tail gas purification process, at first, tail gas is through ventilative groove 21 on the ventilative board 2, supplies liquid to rotatory nozzle 31 through the confession liquid subassembly 5 that sets up, and then rotatory nozzle 31 carries out the jet-propelled purification to tail gas in ventilative board 2 one side to reduce the impurity in the tail gas by a wide margin. Meanwhile, the spray liquid sprayed above the ventilation groove 21 is guided by the liquid guide component 4, so that after the tail gas is purified for one time by part of spray liquid, a first-stage rain curtain is formed on the surface of the ventilation plate 2, and the tail gas passing through the ventilation groove 21 is purified again. In addition, because the rain curtain that the top drain subassembly 4 department formed will flow to the drain subassembly 4 of below under the action of gravity in, then flow out in the drain subassembly 4 of below diaphragm 41 upper surface to form the second grade rain curtain of filtering tail gas, this is provided with effectual improvement spray liquid and tail gas's contact number of times and contact scope, has improved the purifying effect of spray liquid to pitch tail gas.
The embodiment of the application also discloses a modified asphalt tail gas purification treatment method. The modified asphalt tail gas purifying treatment method comprises the following steps: an adjustment controller 8 for supplying liquid to the rotary head 31 through the liquid supply unit 5; the modified asphalt tail gas is introduced into the air supply pipe 11.
The implementation principle of the treatment method is as follows: the liquid supply assembly 5 supplies liquid to the rotary spray head 31, and the rotary spray head 31 sprays spray liquid so as to adsorb and filter impurities in the tail gas passing through the ventilation groove 21; then the spray liquid sprayed upwards from the rotary spray head 31 is blocked by the transverse plate 41, then the blocked spray liquid flows downwards along the surface of the air permeable plate 2, and then the spray liquid flowing through the liquid outlet 421 of the guide plate 42 forms a first-stage rain curtain for filtering tail gas on the surface of the air permeable plate 2. The rain curtain formed at the upper liquid guiding component 4 continuously flows into the lower liquid guiding component 4 under the action of gravity, and then flows out of the upper surface of the transverse plate 41 in the lower liquid guiding component 4, so as to form a secondary rain curtain for filtering tail gas.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (10)

1. A modified asphalt tail gas purification treatment system is characterized in that: including purifying case (1) and intercommunication purifying case (1) inner chamber's blast pipe (11) and outlet duct (12), be provided with on purifying case (1):
the ventilation plate (2) is arranged in the purifying box (1) and is positioned between the air supply pipe (11) and the air outlet pipe (12), and a plurality of ventilation grooves (21) for the tail gas to pass through are formed in the plate surface of the ventilation plate (2) at intervals along the vertical direction;
the spraying groups (3) are arranged in a plurality corresponding to the ventilation grooves (21), each spraying group (3) comprises a plurality of rotary spray heads (31) arranged on the ventilation plate (2), the rotation axes of the rotary spray heads (31) are intersected with the vertical direction, and gaps are reserved between the liquid outlets of the rotary spray heads (31) and the side surfaces of the ventilation plate (2);
the liquid guide assemblies (4) are arranged in a plurality corresponding to the spray groups (3) one by one and are used for guiding the spray liquid sprayed to the liquid guide assemblies (4), and a rain curtain is formed on at least one side of the ventilation plate (2);
and the liquid supply assembly (5) is connected with the spraying group (3) and is used for supplying liquid to the rotary spray head (31).
2. The modified asphalt tail gas purification treatment system according to claim 1, wherein: the liquid guide assembly (4) comprises:
the transverse plate (41) is arranged on the surface of the ventilation plate (2) and is positioned above the corresponding ventilation groove (21), a depression angle larger than 0 exists between the lower surface of the transverse plate (41) and the horizontal plane, and the orthographic projection of the rotary spray head (31) on the horizontal plane is positioned in the orthographic projection of the transverse plate (41) on the horizontal plane;
the air guide plate (42) is arranged on the side wall of the air guide plate (2) and is positioned between the air guide groove (21) and the transverse plate (41), the distance between one side surface of the air guide plate (42) away from the air guide plate (2) and the air guide plate (2) is smaller than the distance between the rotary spray head (31) and the side surface of the air guide plate (2), and a plurality of liquid outlet holes (421) for spraying liquid to pass through are formed in the upper end surface of the air guide plate (42).
3. The modified asphalt tail gas purification treatment system according to claim 2, wherein: the air-permeable plate is characterized in that mounting strips (43) are fixedly arranged on the lower surface of the transverse plate (41) at the position of the surface of the air-permeable plate (2), a plurality of limit strips (44) are fixed on the surface of the mounting strips (43) at intervals, and the arrangement direction of the limit strips (44) is consistent with the extension direction of the transverse plate (41).
4. A modified asphalt tail gas purification treatment system as defined in claim 3, wherein: a plurality of drainage channels (22) communicated with the inner top surface of the ventilation groove (21) are formed in the position, on the surface of the ventilation plate (2), of the mounting strip (43), and perforations (431) are formed in the outer wall of the mounting strip (43);
the cross plate (41) is slidably mounted on the ventilation plate (2), a driving assembly (6) is arranged on the purifying box (1), and the driving assembly (6) is used for driving the cross plate (41) to move so that the through holes (431) are aligned with or staggered from the drainage channels (22).
5. The modified asphalt tail gas purification treatment system according to claim 4, wherein: the driving assembly (6) comprises an adjusting rod (61), an elastic piece (62) and a linear power piece (63); the adjusting rod (61) is positioned at one inner side wall of the purifying box (1) and at one end of the extending direction of the transverse plate (41), a pressing block (611) is fixed at the periphery of the adjusting rod, and one end of the pressing block (611) close to the transverse plate (41) is provided with an inclined surface;
the linear power piece (63) is fixed on the purifying box (1), and the linear power piece (63) is connected with the adjusting rod (61) and is used for driving the adjusting rod (61) to lift and slide so as to enable the inclined surface of the pressing block (611) to press the transverse plate (41);
the elastic piece (62) is arranged on one side of the mounting strip (43) far away from the adjusting rod (61) and is used for elastically connecting the mounting strip (43) with the inner wall of the purifying box (1).
6. The modified asphalt tail gas purification treatment system according to claim 2, wherein: the upper edge of the periphery of the guide plate (42) is fixedly provided with a flanging (422), and a storage cavity is formed between the flanging (422) and the guide plate (42).
7. The modified asphalt tail gas purification treatment system according to claim 1, wherein: the ventilation grooves (21) are bent and extended on the ventilation plate (2), and the rotary spray heads (31) in the spray group (3) are arranged on two sides of the ventilation grooves (21) in a staggered mode.
8. The modified asphalt tail gas purification treatment system according to claim 1, wherein: the purifying box is characterized in that a blower (7) is arranged outside the purifying box (1), the air outlet end of the blower (7) is communicated with the purifying box (1), and the air outlet end of the blower (7) faces to an air outlet pipe (12).
9. The modified asphalt tail gas purification treatment system according to claim 8, wherein: a filter screen (71) is covered on the air blower (7) at the air inlet end of the air blower (7).
10. A modified asphalt exhaust gas purification treatment method based on the modified asphalt exhaust gas purification treatment system according to any one of claims 1 to 9, characterized by comprising the steps of: comprising the following steps:
supplying liquid to the rotary spray head (31) through the liquid supply assembly (5);
and introducing modified asphalt tail gas into the air supply pipe (11).
CN202310785735.9A 2023-06-28 2023-06-28 Modified asphalt tail gas purification treatment system and method Pending CN116899345A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310785735.9A CN116899345A (en) 2023-06-28 2023-06-28 Modified asphalt tail gas purification treatment system and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310785735.9A CN116899345A (en) 2023-06-28 2023-06-28 Modified asphalt tail gas purification treatment system and method

Publications (1)

Publication Number Publication Date
CN116899345A true CN116899345A (en) 2023-10-20

Family

ID=88355532

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310785735.9A Pending CN116899345A (en) 2023-06-28 2023-06-28 Modified asphalt tail gas purification treatment system and method

Country Status (1)

Country Link
CN (1) CN116899345A (en)

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