CN112058027A - Device and method for collecting and purifying asphalt smoke on site - Google Patents
Device and method for collecting and purifying asphalt smoke on site Download PDFInfo
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- CN112058027A CN112058027A CN202010940946.1A CN202010940946A CN112058027A CN 112058027 A CN112058027 A CN 112058027A CN 202010940946 A CN202010940946 A CN 202010940946A CN 112058027 A CN112058027 A CN 112058027A
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- 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
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- 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
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0012—In-line filters
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- 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
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4218—Influencing the heat transfer which act passively, e.g. isolations, heat sinks, cooling ribs
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- 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
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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- 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
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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- 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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
- B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2257/40—Nitrogen compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7027—Aromatic hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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Abstract
The invention relates to a device and a method for collecting and purifying asphalt smoke on site, which are mainly used in the field of traffic civil engineering. A device for collecting and purifying asphalt smoke on site comprises a fixing component, a collecting component and a purifying component; the fixed assembly comprises a smoke sensor, a power supply, a control unit and a rotating shaft; the collection assembly comprises a housing, a filter and a fan; the purification component comprises a cooling chamber, a washing tank, a solvent tank, a circulating pump, a water cut-off device, an active carbon adsorption chamber and an exhaust pipe. The device for collecting and purifying the asphalt smoke is installed above an ironing plate of an asphalt mixture paver, the asphalt smoke is firstly sucked by a fan in a collecting assembly after being started and filtered to remove large and small particles, then enters a purifying assembly to be subjected to solvent washing and activated carbon adsorption, and then purification of the asphalt smoke discharged by the asphalt mixture in the paving process is completed, so that environmental pollution can be reduced, and the health of constructors is guaranteed.
Description
Technical Field
The invention relates to a collecting and purifying assembly for asphalt smoke released in the on-site paving process of an asphalt mixture, which is mainly used in the field of traffic civil engineering.
Background
In recent years, the highway industry of China is developed rapidly, and the method has important significance for improving the traffic development quality, most of roads adopt asphalt pavements, and paving of asphalt mixtures is an extremely important link in the construction process of the asphalt pavements.
The hot-mix mixture process is widely applied to construction of asphalt pavements in China, the paving temperature of the on-site hot-mix mixture is generally not lower than 150 ℃ in order to keep asphalt in a molten state during paving, the asphalt in the mixture can volatilize a large amount of asphalt smoke under the high-temperature condition, and when the paving temperature of the pavement reaches 180 ℃, the concentration of the asphalt smoke can reach 10mg/m at most3～12mg/m3If the paving temperature reaches 200 ℃, the concentration of asphalt smoke can reach 50mg/m at most3。
During the on-site paving process, volatile asphalt fumes in the asphalt mix can cause problems: (1) the asphalt smoke contains various polycyclic aromatic hydrocarbon substances, such as carbazole, benzanthracene, benzopyrene and the like, which belong to carcinogenic and strong carcinogenic substances and seriously affect the health of constructors; (2) if the smoke containing toxic and harmful substances is not treated, the smoke is directly discharged into the air, and the environment is seriously polluted.
Disclosure of Invention
The invention provides a device for collecting and purifying asphalt smoke on site, wherein,
comprises a fixed component, a collection component and a purification component;
the fixing assembly consists of a fixing piece body and a rotating shaft; the collecting assembly is connected with the fixing piece body through the rotating shaft, so that the collecting assembly can be switched between a first position and a second position: when the collecting component is at the first position, the collecting component and the fixing component body are folded; when the collecting assembly is at the second position, the collecting assembly and the fixing piece body are unfolded, and the included angle between the fixing assembly and the collecting assembly is not less than 80 degrees;
the collecting assembly consists of a shell, a filter and a fan; the shell is connected with the rotating shaft, the filter is connected with the fan through a pipeline, and the fan is communicated with the purification assembly so as to convey the asphalt smoke into the purification assembly through the fan;
the purification component consists of a cooling chamber, a washing tank, a solvent tank, a circulating pump, a water cut-off device, an active carbon adsorption chamber and an exhaust pipe.
The device for collecting and purifying asphalt smoke on site as described above, wherein optionally, the fixing assembly further comprises a smoke sensor, a power supply, a driving motor and a control unit;
the driving motor is connected with the rotating shaft, and the power supply, the smoke sensor and the driving motor are all electrically connected with the control unit;
the smoke sensor is used for sensing asphalt smoke and then transmitting a signal to the control unit, and the control unit controls the working state of the driving motor according to the received signal so as to control the power supply to supply power to the driving motor to drive the rotating shaft to rotate until the collecting assembly is located at the second position after the asphalt smoke is greater than the set concentration; the control unit is also used for driving the rotating shaft to enable the collecting assembly to be in the first position after the work is finished.
The device for on-site collection and purification of asphalt smoke as described above, wherein optionally, the collection assembly and the purification assembly are both electrically connected with the control unit, and the control unit is used for controlling the collection assembly and the purification assembly to work when the collection assembly is in the second position.
The device for collecting and purifying asphalt smoke on site as described above, wherein optionally, the collecting component and the purifying component are fixedly connected, and when the collecting component is in the first position, the collecting component is closely attached to the fixing component; when the collecting device is started, the control unit controls the collecting assembly to rotate around the rotating shaft by 90 degrees and unfold to a second position, and the cover opening of the shell faces downwards; after stopping working, the collecting assembly rotates around the rotating shaft by 90 degrees and returns to the original position.
The device for collecting and purifying asphalt smoke on site as described above, wherein, optionally, the housing is in a horn shape and mainly comprises a cover opening and a wind channel, and a vacuum area is formed at the cover opening during air extraction; the cover opening can filter out large particle impurities, and asphalt flue gas enters the filter through the air duct;
the filter is internally provided with a filter element used for filtering particles in the asphalt smoke, and an air outlet pipeline of the filter is connected with an air suction port of the fan.
The device for collecting and purifying asphalt flue gas on site as described above, wherein optionally, the purification assembly further includes a cooling chamber, a solvent tank and a circulation pump, two ends of the cooling chamber are respectively connected with the blower and the washing tank, so that the asphalt flue gas after being absorbed and filtered by the collection assembly is discharged into the washing tank after being subjected to heat exchange and cooling;
the solvent tank is respectively communicated with the washing tank and the inlet of the circulating pump; the solvent tank receives the solvent discharged from the washing tank, and the solvent in the solvent tank is absorbed by the circulating pump and then discharged into the washing tank again to realize the circulation of the solvent.
The device for collecting and purifying asphalt flue gas on site as described above, wherein optionally, the washing tank is provided with a flue gas inlet, a flue gas outlet, a solvent inlet, a sprayer, a filter membrane, a liquid level controller and a solvent outlet, asphalt flue gas enters the solvent in the tank from the solvent inlet at the bottom of the washing tank, flue gas which is not adsorbed by the solvent continues to rise, the asphalt flue gas is washed by the solvent sprayed by the sprayer above, and stays at the filter membrane for a period of time of adsorption, and residual asphalt flue gas is discharged from the flue gas outlet.
The device for collecting and purifying asphalt flue gas on site as described above, wherein optionally, a water interceptor is further provided in the scrubbing tank, and the water interceptor is located between the sprayer and the flue gas inlet and is used for intercepting the liquid part in the asphalt flue gas discharged from the scrubbing tank.
The device for on-site collection and purification of asphalt flue gas as described above, wherein optionally, the activated carbon adsorption chamber performs activated carbon adsorption on the residual gas discharged from the water interceptor to make the residual gas reach the emission standard, and finally the residual gas is directly discharged into the atmosphere through the exhaust pipe.
The invention also proposes a method for the on-site collection and purification of bitumen fumes, as defined in any one of the above, characterized in that: the asphalt flue gas collecting and purifying process comprises the following steps:
firstly, asphalt smoke volatilizes in the process of paving the asphalt mixture, a smoke sensor transmits a signal to a power supply, and the power supply starts to supply power;
the control unit sends out an instruction to control the whole body formed by the collecting assembly and the purifying assembly to rotate by 90 degrees around the rotating shaft and unfold to be horizontal, and then the whole body starts to operate simultaneously;
thirdly, the fan sucks the asphalt smoke, the smoke is filtered for the first time when passing through the cover opening to remove large-particle impurities, and the filter filters the smoke for the second time to remove small-particle impurities;
fourthly, the asphalt smoke absorbed and filtered by the collecting assembly is discharged into a cooling chamber by a fan for heat exchange and cooling, and then is discharged into a washing tank, and the sprayed solvent washes and adsorbs the asphalt smoke;
after liquid drops in the residual asphalt smoke are intercepted by the water interceptor, the gas is adsorbed and purified in the activated carbon adsorption chamber and is finally discharged into the atmosphere through the exhaust pipe;
when no asphalt smoke volatilizes, the smoke sensor transmits a signal to the power supply, the control unit controls the collection assembly and the purification assembly to integrally rotate around the rotating shaft by 90 degrees until the collection assembly and the purification assembly are vertical, the control unit commands each assembly to stop working, and the power supply is finished.
Compared with the prior art, the invention has the beneficial effects that:
according to the device for collecting and purifying the asphalt smoke on site, which is provided by the invention, the device is arranged and operated above the screed of the paver to complete the purification of the asphalt smoke discharged by the asphalt mixture in the paving process, so that the environmental pollution can be reduced and the health of constructors can be ensured.
Drawings
FIG. 1 is a top view of the structure of the present invention;
FIG. 2 is an elevational view of the wash tank of the present invention;
FIG. 3 is an elevational view of the structure of the present invention in operation;
fig. 4 is a structural elevation of the present invention after operation.
Wherein, 1 is a fixed component, 2 is a collection component, 3 is a purification component, 101 is a flue gas sensor, 102 is a power supply, 103 is a control unit, 104 is a rotating shaft, 201 is a shell, 201-1 is a cover opening, 201-2 is an air duct, 202 is a filter, 203 is a fan, 301 is a cooling chamber, 302 is a washing tank, 302-1 is a flue gas inlet, 302-2 is a flue gas outlet, 302-3 is a solvent inlet, 302-4 is a sprayer, 302-5 is a filter membrane, 302-6 is a liquid level controller, 302-7 is a solvent outlet, 303 is a solvent tank, 304 is a circulating pump, 305 is a water cut-off device, 306 is an activated carbon adsorption chamber, and 307 is an exhaust pipe.
Detailed Description
The present invention will be described in detail below with reference to the attached drawings, but they should not be construed as limiting the scope of the present invention.
As shown in fig. 1, 2, 3 and 4: the utility model provides a processing apparatus for field collection and purification pitch flue gas, its structure includes fixed subassembly 1, collection subassembly 2 and purification subassembly 3, and power 102 and control unit 103 supply power and control to collection subassembly 2 and purification subassembly 3 respectively. The fixed component 1 is used for fixedly installing the treatment device, the collecting component 2 is used for collecting asphalt smoke, and the purifying component 3 is used for purifying the collected asphalt smoke.
Specifically, the fixing assembly 1 consists of a fixing piece body, a smoke sensor 101, a power supply 102, a control unit 103 and a rotating shaft 104; the fixing piece body can be a long strip-shaped base. The collecting assembly 2 is connected with the fixing member body through the rotating shaft 104, so that the collecting assembly 2 can be switched between a first position and a second position: when the collecting component 2 is at the first position, the collecting component 2 and the fixing component body are folded; when the collecting assembly 2 is located at the second position, the collecting assembly 2 and the fixing member body are unfolded, and an included angle between the fixing assembly 1 and the collecting assembly 2 is not less than 80 degrees. The fixing body is vertically arranged along the length direction, and the rotating shaft 104 is arranged at the upper end of the fixing body. When setting up, when collection subassembly 2 is in the first position, the import orientation of collection subassembly 2 the mounting body, when collection subassembly 2 is in the second position, the import of collection subassembly 2 is down to in order to collect the pitch flue gas. In specific implementation, when the collecting assembly 2 is located at the second position, an included angle between the fixing member body and the collecting assembly 2 is 80 to 100 degrees, wherein 90 degrees is preferred.
Specifically, in order to realize the automatic switching between the first position and the second position of the collecting assembly 2, the rotating shaft 104 is connected with a driving motor, that is, the driving motor is connected with the rotating shaft 104, and the power source 102, the smoke sensor 101 and the driving motor are all electrically connected with the control unit 103; the smoke sensor 101 is used for transmitting a signal to the control unit 103 after sensing asphalt smoke, and the control unit 103 controls the working state of the driving motor according to the received signal, so that after the asphalt smoke is higher than a set concentration, the power supply 102 is controlled to supply power to the driving motor to drive the rotating shaft 104 to rotate until the collecting assembly 2 is in a second position; the control unit 103 is further configured to drive the rotating shaft 104 to enable the collecting assembly 2 to be in the first position after the work is completed.
After sensing asphalt smoke, the smoke sensor 101 transmits a signal to the power supply 102; the power supply 102 provides power to the various devices; the control unit 103 is connected with the power supply 102 and controls the operation of the collection assembly 2 and the purification assembly 3; the fixing component 1 is fixedly installed above an ironing plate of the asphalt mixture paver through screws.
The collection assembly 2 is composed of a housing 201, a filter 202 and a fan 203; the shell 201 is in a horn shape and mainly comprises a cover opening 201-1 and an air duct 201-2, and a vacuum area is formed at the cover opening 201-1 during air suction; the cover opening 201-1 can filter out large particle impurities, and asphalt flue gas enters the filter 202 through the air duct 201-2; a filter element is arranged in the filter 202 and can filter small particles in the asphalt smoke, and an air outlet pipeline of the filter 202 is connected with an air suction port of the fan 203; the fan 203 is composed of a motor and a fan, the motor is connected with the power supply 102 through a circuit, and the motor drives the fan to extract air during operation.
The purification component 3 consists of a cooling chamber 301, a washing tank 302, a solvent tank 303, a circulating pump 304, a water interceptor 305, an activated carbon adsorption chamber 306 and an exhaust pipe 307; two ends of the cooling chamber 301 are respectively connected with the fan 203 and the washing tank 302, and the asphalt flue gas absorbed and filtered by the collecting assembly 2 is subjected to heat exchange and cooling and then discharged into the washing tank 302; the washing tank 302 consists of a flue gas inlet 302-1, a flue gas outlet 302-2, a solvent inlet 302-3, a sprayer 302-4, a filter membrane 302-5, a liquid level controller 302-6 and a solvent outlet 302-7, wherein asphalt flue gas enters the solvent in the tank from the flue gas inlet 302-1 at the bottom of the washing tank 302, the flue gas which is not adsorbed by the solvent continuously rises, the asphalt flue gas is washed by the solvent sprayed by the sprayer 302-4 above the asphalt flue gas and stays at the filter membrane 302-5 to be adsorbed for a period of time, and the residual asphalt flue gas is discharged from the flue gas outlet 302-2; the solvent tank 303 receives the solvent discharged from the solvent outlet 302-7 of the washing tank 302, and the solvent in the solvent tank 303 is absorbed by the circulating pump 304 and then discharged into the washing tank 302 from the solvent inlet 302-3 again to realize the circulation of the solvent; the water interceptor 305 intercepts the liquid portion of the pitch flue gas discharged from the wash tank 302; the activated carbon adsorption chamber 306 performs activated carbon adsorption on the residual gas discharged from the water trap 305 to make it meet the emission standard, and finally discharges it directly into the atmosphere through the exhaust pipe 307.
The collecting component 2 and the purifying component 3 are integrally connected, are retracted before starting and are tightly attached to the fixing component 1; the control unit 103 commands the whole body to rotate 90 degrees around the rotating shaft 104 to be unfolded to the horizontal state when in starting, namely, the cover opening 201-1 of the shell 201 is horizontally downward; after stopping operation, the whole body is rotated back to its original position by 90 ° about the rotary shaft 104.
The asphalt flue gas collecting and purifying process comprises the following specific steps:
firstly, asphalt smoke volatilizes in the process of paving the asphalt mixture, a smoke sensor 101 transmits a signal to a power supply 102, and the power supply starts to supply power;
the control unit 103 sends out an instruction to control the whole body formed by the collection assembly 2 and the purification assembly 3 to rotate by 90 degrees around the rotating shaft 104 and unfold to be horizontal, and then the whole body starts to operate simultaneously;
thirdly, the fan 203 sucks the asphalt smoke, the smoke is filtered for the first time when passing through the cover opening 201-1 to remove large-particle impurities, and the filter 202 filters the smoke for the second time to filter small-particle impurities;
fourthly, the asphalt flue gas absorbed and filtered by the collecting component 2 is discharged into a cooling chamber 301 by a fan 203 for heat exchange and cooling, and then is discharged into a washing tank 302, and is washed and adsorbed by the sprayed solvent;
after liquid drops in the residual asphalt flue gas are intercepted by the water interceptor 305, the gas is adsorbed and purified in the activated carbon adsorption chamber 306 and is finally discharged into the atmosphere through the exhaust pipe 307;
when no asphalt smoke volatilizes, the smoke sensor 101 transmits a signal to the power supply 102, the control unit 103 controls the whole collecting assembly 2 and the purifying assembly 3 to rotate around the rotating shaft 104 by 90 degrees to be vertical, then the devices are instructed to stop working, and the power supply 102 finishes supplying power.
In summary, the device for collecting and purifying asphalt smoke on site provided by the invention is installed and operated above the screed of the paver, completes the purification of asphalt smoke discharged by asphalt mixture in the paving process, can reduce environmental pollution and ensure the health of constructors.
Claims (10)
1. The utility model provides a device of on-spot collection and purification pitch flue gas which characterized in that:
comprises a fixed component (1), a collecting component (2) and a purifying component (3);
the fixing component (1) consists of a fixing part body and a rotating shaft (104); the collecting assembly (2) is connected with the fixing piece body through the rotating shaft (104) so that the collecting assembly (2) can be switched between a first position and a second position: when the collecting component (2) is at the first position, the collecting component (2) and the fixing component body are folded; when the collecting assembly (2) is at the second position, the collecting assembly (2) and the fixing piece body are unfolded, and the included angle between the fixing assembly (1) and the collecting assembly (2) is not less than 80 degrees;
the collection assembly (2) consists of a shell (201), a filter (202) and a fan (203); the shell (201) is connected with the rotating shaft (104), the filter (202) is connected with the fan (203) through a pipeline, and the fan (203) is communicated with the purifying assembly (3) so as to convey asphalt smoke into the purifying assembly (3) through the fan (203);
the purification component (3) consists of a cooling chamber (301), a washing tank (302), a solvent tank (303), a circulating pump (304), a water interceptor (305), an activated carbon adsorption chamber (306) and an exhaust pipe (307).
2. The plant for the on-site collection and purification of asphalt fumes according to claim 1, characterized in that the stationary assembly (1) further comprises a fume sensor (101), a power supply (102), a drive motor and a control unit (103);
the driving motor is connected with the rotating shaft (104), and the power supply (102), the smoke sensor (101) and the driving motor are all electrically connected with the control unit (103);
the smoke sensor (101) is used for transmitting a signal to the control unit (103) after sensing asphalt smoke, and the control unit (103) controls the working state of the driving motor according to the received signal, so that after the asphalt smoke is greater than a set concentration, the power supply (102) is controlled to supply power to the driving motor to drive the rotating shaft (104) to rotate until the collecting assembly (2) is located at a second position; the control unit (103) is also used for driving the rotating shaft (104) to enable the collecting component (2) to be in the first position after the work is finished.
3. The device for the on-site collection and purification of bituminous fumes according to claim 2, characterized in that said collection assembly (2) and said purification assembly (3) are electrically connected to said control unit (103), said control unit (103) being adapted to control the operation of said collection assembly (2) and said purification assembly (3) when said collection assembly (2) is in the second position.
4. The device for the on-site collection and purification of asphalt fumes according to claim 1, wherein the collection assembly (2) and the purification assembly (3) are fixedly connected and closely attached to the fixed assembly (1) when the collection assembly (2) is in the first position; the control unit (103) controls the collection assembly (2) to rotate by 90 degrees around the rotating shaft (104) to be unfolded to a second position when starting, and the cover opening (201-1) of the shell (201) faces downwards; after stopping working, the collecting assembly (2) rotates around the rotating shaft (104) for 90 degrees to return to the original position.
5. The device for on-site collection and purification of asphalt flue gas according to claim 1, wherein the housing (201) is in a horn shape and mainly comprises a hood opening (201-1) and an air duct (201-2), and a vacuum area is formed at the hood opening (201-1) during air suction; the cover opening (201-1) can filter out large particle impurities, and asphalt flue gas enters the filter (202) through the air duct (201-2);
and a filter element is arranged in the filter (202) and used for filtering particles in the asphalt smoke, and an air outlet pipeline of the filter (202) is connected with an air suction port of the fan (203).
6. The device for on-site collection and purification of asphalt flue gas according to claim 1, wherein the purification assembly (3) further comprises a cooling chamber (301), a solvent tank (303) and a circulating pump (304), wherein two ends of the cooling chamber (301) are respectively connected with the fan (203) and the washing tank (302) so as to discharge the asphalt flue gas after being absorbed and filtered by the collection assembly (2) into the washing tank (302) after heat exchange and cooling;
the solvent tank (303) is respectively communicated with inlets of the washing tank (302) and the circulating pump (304); the solvent tank (303) receives the solvent discharged from the washing tank (302), and the solvent in the solvent tank (303) is absorbed by the circulating pump (304) and then discharged into the washing tank (302) again to realize the circulation of the solvent.
7. The device for collecting and purifying asphalt smoke on site according to claim 1, wherein the washing tank (302) is provided with a smoke inlet (302-1), a smoke outlet (302-2), a solvent inlet (302-3), a sprayer (302-4), a filter membrane (302-5), a liquid level controller (302-6) and a solvent outlet (302-7), asphalt smoke enters the solvent in the washing tank (302) from the solvent inlet (302-3) at the bottom of the washing tank (302), the smoke which is not adsorbed by the solvent continuously rises, the solvent sprayed by the sprayer (302-4) above is used for washing and stays at the filter membrane (302-5) for adsorbing for a period of time, and the residual asphalt smoke is discharged from the smoke outlet (302-2).
8. The apparatus for on-site collection and purification of asphalt flue gas according to claim 7, wherein a water interceptor (305) is further provided in the scrubbing tank (302), and the water interceptor (305) is located between the sprayer (302-4) and the flue gas inlet (302-1) for intercepting the liquid portion of the asphalt flue gas discharged from the scrubbing tank (302).
9. The device for on-site collection and purification of asphalt flue gas according to claim 1, wherein the activated carbon adsorption chamber (306) carries out activated carbon adsorption on residual gas discharged from the water interceptor (305) to make the residual gas reach emission standard, and finally the residual gas is directly discharged into the atmosphere through the exhaust pipe (307).
10. A method for the on-site collection and purification of bitumen flue gas according to any of claims 1-9, characterised in that: the asphalt flue gas collecting and purifying process comprises the following steps:
firstly, asphalt smoke volatilizes in the process of paving the asphalt mixture, a smoke sensor (101) transmits a signal to a power supply (102), and the power supply starts to supply power;
the control unit (103) sends out an instruction to control the whole body formed by the collection assembly (2) and the purification assembly (3) to rotate by 90 degrees around the rotating shaft (104) and unfold to be horizontal, and then the whole body starts to operate at the same time;
thirdly, the fan (203) sucks asphalt smoke, the smoke is filtered for the first time when passing through the cover opening (201-1) to remove large-particle impurities, and the filter (202) filters the smoke for the second time to filter small-particle impurities;
fourthly, the asphalt smoke absorbed and filtered by the collecting assembly (2) is discharged into a cooling chamber (301) by a fan (203) for heat exchange and cooling, and then is discharged into a washing tank (302), and the asphalt smoke is washed and adsorbed by a sprayed solvent;
after liquid drops in the residual asphalt flue gas are intercepted by the water interceptor (305), gas is adsorbed and purified in the activated carbon adsorption chamber (306), and is finally discharged into the atmosphere through the exhaust pipe (307);
when no asphalt smoke volatilizes, the smoke sensor (101) transmits a signal to the power supply (102), the control unit (103) controls the collection assembly (2) and the purification assembly (3) to integrally rotate around the rotating shaft (104) by 90 degrees until the collection assembly and the purification assembly are vertical, the components are commanded to stop working, and the power supply (102) finishes supplying power.
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| CN202010940946.1A CN112058027A (en) | 2020-09-09 | 2020-09-09 | Device and method for collecting and purifying asphalt smoke on site |
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| CN202010940946.1A CN112058027A (en) | 2020-09-09 | 2020-09-09 | Device and method for collecting and purifying asphalt smoke on site |
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| CN112058027A true CN112058027A (en) | 2020-12-11 |
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| CN202010940946.1A Pending CN112058027A (en) | 2020-09-09 | 2020-09-09 | Device and method for collecting and purifying asphalt smoke on site |
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Cited By (6)
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| CN110812997A (en) * | 2019-10-25 | 2020-02-21 | 仪征祥源动力供应有限公司 | Air classification filtering and drying device for air compressor |
| CN113089421A (en) * | 2021-04-27 | 2021-07-09 | 湖南省醴陵市通达建设工程有限公司 | Asphalt concrete road unmanned paver and construction method thereof |
| CN113828119A (en) * | 2021-10-29 | 2021-12-24 | 合肥工业大学 | Waste gas treatment equipment for asphalt mixing station |
| CN114112557A (en) * | 2021-11-25 | 2022-03-01 | 哈尔滨工业大学 | Asphalt mixture flue gas detection/collection integrated device and test method |
| CN115155412A (en) * | 2022-07-12 | 2022-10-11 | 山东高速物资储运有限公司 | Environment-friendly modified asphalt production device and production method |
| CN117402677A (en) * | 2023-10-16 | 2024-01-16 | 江苏嘉源生物技术有限公司 | Peculiar smell remove device in lanolin preparation process |
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| CN209885505U (en) * | 2019-04-04 | 2020-01-03 | 广州市和富市政工程有限公司 | Device for treating asphalt smoke of paver |
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| CN110812997A (en) * | 2019-10-25 | 2020-02-21 | 仪征祥源动力供应有限公司 | Air classification filtering and drying device for air compressor |
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| CN113089421A (en) * | 2021-04-27 | 2021-07-09 | 湖南省醴陵市通达建设工程有限公司 | Asphalt concrete road unmanned paver and construction method thereof |
| CN113828119A (en) * | 2021-10-29 | 2021-12-24 | 合肥工业大学 | Waste gas treatment equipment for asphalt mixing station |
| CN113828119B (en) * | 2021-10-29 | 2023-03-10 | 合肥工业大学 | Waste gas treatment equipment for asphalt mixing station |
| CN114112557A (en) * | 2021-11-25 | 2022-03-01 | 哈尔滨工业大学 | Asphalt mixture flue gas detection/collection integrated device and test method |
| CN115155412A (en) * | 2022-07-12 | 2022-10-11 | 山东高速物资储运有限公司 | Environment-friendly modified asphalt production device and production method |
| CN115155412B (en) * | 2022-07-12 | 2023-11-14 | 山东高速物资储运有限公司 | Environment-friendly modified asphalt production device and production method |
| CN117402677A (en) * | 2023-10-16 | 2024-01-16 | 江苏嘉源生物技术有限公司 | Peculiar smell remove device in lanolin preparation process |
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Application publication date: 20201211 |