CN219128829U - Superimposed gas-solid-liquid three-phase spraying device and asphalt flue gas pretreatment system - Google Patents
Superimposed gas-solid-liquid three-phase spraying device and asphalt flue gas pretreatment system Download PDFInfo
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- CN219128829U CN219128829U CN202223367013.1U CN202223367013U CN219128829U CN 219128829 U CN219128829 U CN 219128829U CN 202223367013 U CN202223367013 U CN 202223367013U CN 219128829 U CN219128829 U CN 219128829U
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Abstract
The utility model relates to a stacked gas-solid-liquid three-phase spraying device and asphalt flue gas pretreatment system, wherein solid spraying is composed of a carbon black dust collecting tank, a fan, a dust exhaust pipe and an air inlet pipe, liquid spraying is composed of an alkaline solution liquid storage tank, an alkaline solution supplying pump and a liquid exhaust pipe, gas spraying is composed of an air compressor, an air storage tank and a pressure sink air pipe, regulating valves are arranged through the pipelines, the stacked gas-solid-liquid three-phase spraying device is cooperated to form a set of pretreatment system, when flue gas containing dust tar and sulfide and fog drop concentration under high temperature and high pressure flows into a flue gas collecting pipe to be connected with the stacked gas-solid-liquid three-phase spraying device, the mole ratio and the gas-liquid ratio which are suitable for acid-base balance are regulated, the dust-containing tar-gas-solid ratio are regulated, and the dust-tar-absorbing and tar-gas-solid ratio are adsorbed, and the dust exhaust fan, the air supplying pump and the air compressor and the compressed air of 0.5MPa are started, and the carbon black dust, alkaline solution and the compressed air is respectively conveyed into the stacked gas-solid three-phase spraying device to spray the stacked gas-solid-liquid asphalt to reduce the temperature and degrade sulfide and adsorb tar.
Description
Technical Field
The utility model relates to the field of environmental protection, in particular to a method for degrading sulfides and adsorbing tar dust by spraying and cooling by adopting a stacked gas-solid-liquid three-phase spraying device and an asphalt flue gas pretreatment system for asphalt flue gas containing dust, tar and fog drops under a high-temperature and high-pressure working condition.
Background
In the environment-friendly field, drifting and free phenomena exist in the asphalt flue gas treatment process of dust-containing tar and fog drops under the high-temperature hot-pressing working condition, the dust-containing tar and superfine fog drops are trapped and the condensation effect is poor due to the adoption of a spray cooling and honeycomb tube static trapping tar treatment process, so that the defects of flue gas pretreatment and a system and the key short plate technology of the treatment process are overcome, the defects of the existing asphalt flue gas treatment can be effectively overcome, and the method is suitable for the requirements of a low-cost environment-friendly market.
Disclosure of Invention
The present utility model solves the above-mentioned technical problems by a series of technical features.
The superimposed gas-solid-liquid three-phase spraying device and asphalt flue gas pretreatment system is characterized in that: superimposed gas-solid-liquid three-phase spray set and pitch flue gas pretreatment systems, characterized by: the solid spraying device is used for selecting carbon black dust, putting the carbon black dust into a carbon black dust collection tank, wherein a dust exhaust pipe, an air inlet pipe and an air inlet branch pipe are arranged in the tank, the dust exhaust pipe is connected with a dust exhaust air door and a dust exhaust fan, and the dust exhaust pipe is connected with the air inlet pipe and the air inlet branch pipe through the power of the dust exhaust fan to pump the carbon black dust through the air flowing in through the air inlet pipe; the liquid storage tank is internally provided with an alkaline solution and reclaimed water mixture for liquid spraying, and the liquid storage tank is internally provided with a liquid supply pipe, a liquid supply valve and a liquid supply pump which are connected through the liquid storage tank; the air storage tank is connected with the pressure-sink air pipe through the air compressor, and the pressure-sink air is used for gas spraying; the pretreatment system for asphalt flue gas is composed of various regulating valves arranged on the gas-solid-liquid pipeline and a cooperative superposition type gas-solid-liquid three-phase spray device.
The superimposed gas-solid-liquid three-phase spraying device and asphalt flue gas pretreatment system is characterized in that: the carbon black dust collection tank consists of a cylindrical barrel and a cone, wherein a dust exhaust pipe is arranged at the bottom of the cone and connected with an air inlet pipe, the air inlet pipe penetrating through the cylindrical barrel is connected with an air inlet valve, an air inlet branch pipe is bypassed on the air inlet pipe in the cylindrical barrel, and the caliber of the air inlet branch pipe is 1/3 of the caliber of the air inlet pipe; the dust exhaust pipe penetrating through the bottom of the cone is connected with a drain pipe by-pass, the caliber of the dust exhaust pipe is identical to that of the drain pipe, the drain pipe is connected with a drain valve, and the dust exhaust pipe is connected with a dust exhaust air door, a dust exhaust fan, a dust exhaust one-way valve and a dust exhaust air pipe; the cylinder support is used for supporting the cylindrical cylinder carbon black dust collection tank, three cylinder supports are arranged on the outer circular side face of the cylindrical cylinder and are at equal angles, and the height distance H between the bottom of the cylinder support and the center of the dust exhaust pipe is set to be 250-350 mm.
The superimposed gas-solid-liquid three-phase spraying device and asphalt flue gas pretreatment system is characterized in that: the distance M between the center of the air inlet pipe penetrating through the cylindrical barrel and the center of the cylindrical barrel is set to be 80-120 mm, the distance O between the horizontal center of the air inlet pipe and the cover plate of the cylindrical barrel is set to be 120-150 mm, and a fixing bracket of the air inlet pipe is arranged between the air inlet pipe and the bottom of the cone; the dust exhaust pipe is provided with a semicircular opening, the semicircular opening is flush with the bottom of the cone and then welded and fixed, a plurality of semicircular cone metal screens with the aperture of more than 2mm, the spacing between the aperture of the circular holes of 4-5 mm and the height of more than 200mm and the angle of the cone are arranged on the inclined plane and the side surface of the cone, a steel plate without circular holes is arranged at the top of the semicircular cone metal screen, an air inlet branch pipe bypassed by an air inlet pipe is inserted into the top of the semicircular cone metal screen, and the semicircular cone metal screen is placed at the upper parts of the cone and the dust exhaust pipe without the opening and fixed by welding; the air inlet branch pipe is inserted into the top of the semi-cone metal screen, and when the air flowing in through the air inlet branch pipe is used for driving the carbon black dust to flow through the dust discharging pipe via the semi-cone metal screen, a cone with a downward tip can be formed, necessary air driving space can be reserved, and the carbon black dust can naturally sink and flow into the dust discharging pipe at the opening part by utilizing air pressure.
The superimposed gas-solid-liquid three-phase spraying device and asphalt flue gas pretreatment system is characterized in that: the side of the cylindrical barrel is respectively provided with a water inlet pipe and a dust return pipe for cleaning the barrel, and an observation hole which can visually observe the capacity and the height of carbon black dust and is provided with transparent organic glass, the width of the observation hole is set to 120mm, the height is set to be between 500 and 700mm, and the observation hole is set to deviate from a central line by 22.5 0 Is located at the position of (2); the dust return pipe penetrating through the inside and outside of the cylindrical barrel is connected with the dust return valve and the dust exhaust air pipe, once the dust exhaust air machine stops running, the dust exhaust one-way valve is automatically closed, the dust return air door is opened, and carbon black dust in the dust exhaust air pipe can flow into the carbon black dust collection tank through the dust return pipe and the dust return air door for storage and recycling.
The superimposed gas-solid-liquid three-phase spraying device and asphalt flue gas pretreatment system is characterized in that: the top of the liquid storage tank made of glass fiber reinforced plastic is provided with a safety valve and an electronic liquid level meter, wherein the safety valve and the electronic liquid level meter can be used for opening a valve when the pressure is more than or equal to 0.2MPa, and a liquid storage exhaust pipe arranged on the safety valve is connected with a flue gas collecting pipe; a drain pipe is arranged at the lower part of the liquid storage tank and is connected with a drain valve, an alkaline solution pressing pipe and a water inlet valve connected with a reclaimed water inlet pipe are arranged on the liquid storage tank, an external hose connector, a liquid inlet valve and the alkaline solution pressing pipe are connected with each other, the gas-liquid ratio suitable for spraying and degrading sulfides and the molar specific capacity of alkaline solution for balancing acid gas are put into the liquid storage tank by an alkaline solution tank truck through the liquid inlet valve and the external hose connector and the alkaline solution pressing pipe, and are diluted after being mixed with reclaimed water flowing in through the reclaimed water inlet pipe and the water inlet valve, and a liquid supply pipe arranged on the liquid storage tank is connected with the liquid supply valve and the liquid supply pump; after the air is compressed to the pressure of 0.5 by adopting an air compressor, an air storage tank with the pressure of not less than 1.0MPa is configured through a compressed air pipe for storage, and air ball valves are arranged at the air inlet and the air outlet of the air storage tank.
The superimposed gas-solid-liquid three-phase spraying device and asphalt flue gas pretreatment system is characterized in that: the overlapped gas-solid-liquid three-phase spraying device can be used for processing and manufacturing a pipeline with the same caliber as the flue gas collecting pipe, flanges are arranged at two ends of the pipeline, three oval holes with equal angles and diameters DN 32-DN 50 are arranged on the side surface of the pipeline in a dimension between 150 and 200mm away from the flange, and the diameters of the oval holes are 45 0 And the three pipelines with the same pipe diameter are inserted into three nozzles of an alkaline solution spraying liquid supply pipe and a carbon black dust spraying dust exhaust pipe at the angle position, the central extension lines of the three nozzles are intersected with the central line of the superimposed gas-solid-liquid three-phase spraying device, the length of the nozzles of the device is smaller than or equal to 100mm, and the nozzles are fixed in a welding mode.
The superimposed gas-solid-liquid three-phase spraying device and asphalt flue gas pretreatment system is characterized in that: 90 of alkaline solution spraying liquid supply pipe and dust exhaust air pipe for spraying carbon black dust with same pipe diameter between three DN 32-DN 50 0 Round holes with the size of 15-20 mm are formed in the bent pipe, compressed air pipes with the pipe diameters of DN 10-DN 15 are respectively inserted into the round holes, and the compressed air pipes are welded and fixed after being inserted into the alkaline solution spraying liquid supply pipe and the dust exhaust air pipe for spraying carbon black dust, wherein the depth distance K of the dust exhaust air pipe is 50-100 mm; the alkaline solution spraying liquid supply pipe of the superimposed gas-solid-liquid three-phase spraying device, the dust exhaust air pipe for spraying carbon black dust and the compressed air pipe are respectively provided with ball valves for adjusting the liquid supply amount, the dust exhaust amount and the compressed air amount, the dust exhaust fan, the liquid supply pump and the air compressor are started, and the dust, the alkaline solution and the compressed air are respectively sent into the superimposed gas-solid-liquid three-phase spraying device to spray, cool and degrade sulfide and adsorb tar to high-temperature asphalt flue gas.
The stacked gas-solid-liquid three-phase spraying device and the asphalt flue gas pretreatment system are simple and reasonable, and the working principle is as follows: spraying carbon black dust as solid matters for adsorbing dust-containing tar in high-temperature hot-pressed asphalt flue gas, wherein a carbon black dust collecting tank and a dust exhaust pipe are combined with an air inlet pipe to connect an air inlet valve capable of adjusting air inflow, a dust exhaust fan, a dust exhaust one-way valve, a dust exhaust air pipe and a dust exhaust ball valve; the liquid spraying is to mix the alkaline solution capacity for degrading sulfide and the reclaimed water flowing in through the reclaimed water inlet pipe and the water inlet valve in the liquid storage tank according to the molar ratio of acid-base balance by detecting the concentration of sulfide, so as to obtain dilution, and the liquid supply pipe and the liquid supply valve, the liquid supply pump and the liquid supply check valve and the alkaline solution spraying liquid supply pipe which are connected with the liquid supply ball valve are connected with each other; the gas spraying is that after the air is compressed to the pressure of 0.5MPa by an air compressor, the air is stored by an air storage tank and is compressed to a pressure sink air pipe and an air ball valve; an asphalt flue gas pretreatment system is formed by combining an adjustable valve configured by each pipeline with a superimposed gas-solid-liquid three-phase spray device; when flue gas containing dust tar, sulfide and fog drop concentration is pressed at high temperature and flows into a flue gas collecting pipe to be connected with a stacked gas-solid-liquid three-phase spraying device, the molar ratio and the gas-liquid ratio which are suitable for balancing acid and alkali are adjusted, the dust-containing tar gas-solid ratio is adsorbed, a dust exhaust fan, a liquid supply pump, an air compressor and 0.5MPa compressed air are started, carbon black dust, alkaline solution and air under pressure are respectively sent into the stacked gas-solid-liquid three-phase spraying device, and the high-efficiency pretreatment of spraying, cooling, degrading sulfide and adsorbing tar is carried out on high-temperature hot-pressed asphalt flue gas.
Drawings
FIG. 1 is a flow chart of the spray device and bitumen flue gas pretreatment system of the present utility model;
FIG. 2 is a lower plan cross-sectional view of the soot dust tank of FIG. 1;
FIG. 3 is a top plan view of the soot dust canister of FIG. 2;
FIG. 4 is a cross-sectional view of the soot dust tank A-A of FIG. 2;
FIG. 5 is a cross-sectional view of the soot dust tank B-B of FIG. 2;
FIG. 6 is a plan detail view of the stacked gas-solid-liquid three-phase spray device of FIG. 1;
FIG. 7 is a cross-sectional view of the stacked gas-solid-liquid three-phase spray device of FIG. 6;
description of the drawings
In fig. 1:
1-overlapped gas-solid-liquid three-phase spraying device and asphalt flue gas pretreatment system, 2-carbon black dust collection tank, 3-semicircle cone metal screen, 4-carbon black dust, 5-dust exhaust air door, 5-dust exhaust pipe, 6-air inlet air door, 6 A-Air inlet pipe, 6 b-air inlet branch pipe, 7-dust exhaust fan, 7 a-dust exhaust one-way valve, 7 b-dust exhaust air pipe, 7 c-dust exhaust ball valve, 8-dust exhaust one-way valve, 9-dust collection cloth bag, 10-dust return air door, 10 a-dust return pipe, 11-cylinder cover plate, 12-dust injection port, 13-cylinder bracket, 14-drain valve, 14 a-drain pipe, 16-medium water inlet valve, 16 a-medium water inlet pipe, 21-liquid storage tank, 22-alkaline solution pressing pipe, 23-hose connector, 24-drain valve, 25-liquid supply valve, 26-liquid supply pump, 26 a-liquid supply check valve, 26 b-alkaline solution spraying liquid supply pipe, 26 c-liquid supply ball valve, 27-safety valve, 27 a-liquid storage exhaust pipe, 28-electronic water level gauge, 31-air compressor, 32-air storage tank, 33-air compression pipe, 34-air ball valve, 41-flue gas collecting pipe and 42-stacked gas-solid-liquid three-phase spraying device.
In fig. 2:
the device comprises a 1-overlapped gas-solid-liquid three-phase spraying device, an asphalt flue gas pretreatment system, a 2-carbon black dust collection tank, a 3-semi-cone metal screen, 4-carbon black dust, a 5 a-dust discharge pipe, a 6 A-Air inlet pipe, a 6 b-air inlet branch pipe, a 6 c-fixed support, a 10 a-dust return pipe, a 13-cylinder support, a 14 a-drain pipe, a 15-observation hole and a 16 a-reclaimed water inlet pipe.
In fig. 3:
the device comprises a 1-overlapped gas-solid-liquid three-phase spraying device, an asphalt flue gas pretreatment system, a 2-carbon black dust collection tank, a 6 A-Air inlet pipe, an 8-exhaust one-way valve, a 9-dust collection cloth bag, a 10 a-dust return pipe, a 11-cylinder cover plate, a 12-dust injection port, a 15-observation hole and a 16 a-reclaimed water inlet pipe.
In fig. 4:
the device comprises a 1-overlapped gas-solid-liquid three-phase spraying device, an asphalt flue gas pretreatment system, a 2-carbon black dust collection tank, a 3-semi-cone metal screen, 4-carbon black dust, a 5 a-dust discharge pipe, a 6 A-Air inlet pipe, a 6 b-air inlet branch pipe, a 6 c-fixed support, an 8-air discharge one-way valve, a 9-dust collection cloth bag, a 10 a-dust return pipe, a 11-barrel cover plate, a 12-dust injection port, a 13-barrel support, a 14 a-water discharge pipe, a 15-observation hole and a 16 a-reclaimed water inlet pipe.
In fig. 5:
the device comprises a 1-overlapped gas-solid-liquid three-phase spraying device, an asphalt flue gas pretreatment system, a 2-carbon black dust collection tank, a 3-semi-cone metal screen, 4-carbon black dust, a 5 a-dust discharge pipe, a 6 A-Air inlet pipe, a 6 b-air inlet branch pipe, a 6 c-fixed support, an 8-air discharge one-way valve, a 9-dust collection cloth bag, an 11-cylinder cover plate, a 13-cylinder support, a 14 a-drain pipe, a 15-observation hole and a 16 a-reclaimed water inlet pipe.
In fig. 6:
the device comprises a 1-stacked gas-solid-liquid three-phase spraying device and an asphalt flue gas pretreatment system, a 7 b-dust exhaust air pipe, a 7 c-dust exhaust ball valve, a 26 b-alkaline solution spraying liquid supply pipe, a 26 c-liquid supply ball valve, a 33-air compression pipe, a 34-air ball valve and a 42-stacked gas-solid-liquid three-phase spraying device.
In fig. 7:
the device comprises a 1-stacked gas-solid-liquid three-phase spraying device and an asphalt flue gas pretreatment system, a 7 b-dust exhaust air pipe, a 7 c-dust exhaust ball valve, a 26 b-alkaline solution spraying liquid supply pipe, a 26 c-liquid supply ball valve, a 33-air compression pipe, a 34-air ball valve and a 42-stacked gas-solid-liquid three-phase spraying device.
Detailed Description
The technical features of the present utility model will be further described with reference to the following examples and the accompanying drawings.
According to the embodiments shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, the stacked gas-solid-liquid three-phase spraying device and the asphalt flue gas pretreatment system 1, the carbon black dust 4 for solid spraying is put into the carbon black dust collection tank 2, and the dust exhaust pipe 5a, the air inlet pipe 6a and the air inlet branch pipe 6b are arranged through the carbon black dust collection tank 2, and the dust exhaust fan 7 is arranged; for liquid spraying, alkaline solution is put into a liquid storage tank 21 to be mixed with reclaimed water and then diluted, and a liquid supply pipe, a liquid supply valve 25 and a liquid supply pump 26 are connected through the liquid storage tank 21; the air spraying is a pretreatment system for asphalt flue gas, which is formed by compressing air to the pressure of 0.5MPa through an air compressor 31, storing and pressing an air pipe 33 through an air storage tank 32, and combining a gas-solid-liquid three-phase spraying device 42 cooperatively overlapped through various regulating valves arranged on a gas-solid-liquid pipeline; the carbon black dust collection tank 2 consists of a cylindrical barrel and a cone, a circular ring and a barrel cover plate 11 are arranged at the upper part of the outer side of the cylindrical barrel, an exhaust pipe, an exhaust one-way valve 8 and a dust collection cloth bag 9 are arranged on the barrel cover plate 11, and a dust injection opening 12 and a cover plate of the dust injection opening 12 are also arranged on the barrel cover plate 11 and are used for inputting carbon black dust 4 with the particle size of 50 meshes or more; the bottom of the cone is provided with a dust exhaust pipe 5a which is connected with an air inlet pipe 6a, the air inlet pipe 6a penetrating through the cylindrical barrel is connected with an air inlet valve 6, the air inlet pipe 6a in the cylindrical barrel is bypassed on an air inlet branch pipe 6b, and the caliber of the air inlet branch pipe 6b is 1/3 of the caliber of the air inlet pipe 6 a; the dust exhaust pipe 5a penetrating through the bottom of the cone is connected with the drain pipe 14a by-pass, the caliber of the dust exhaust pipe 5a is the same as that of the drain pipe 14a, the drain pipe 14a is connected with the drain valve 14, and the dust exhaust pipe 5a is connected with the dust exhaust air door 5, the dust exhaust fan 7, the dust exhaust one-way valve 7a and the dust exhaust air pipe 7b; the cylinder bracket 13 for supporting the cylindrical cylinder carbon black dust collection tank 2 is arranged on the side surface of the outer circle of the cylindrical cylinder, three parts are arranged on equal angles, and the height distance H between the bottom of the cylinder bracket 13 and the center of the dust discharging pipe 5a is set to be 250-350 mm.
According to the stacked gas-solid-liquid three-phase spraying device and asphalt flue gas pretreatment system 1 shown in fig. 1, 2, 3, 4, 5, 6 and 7, the distance M between the center of an air inlet pipe 6a penetrating through a cylindrical cylinder and the center of the cylindrical cylinder is set to be 80-120 mm, the distance O between the horizontal center of the air inlet pipe 6a and a cylindrical cylinder cover plate 11 is set to be 120-150 mm, and a fixing bracket 6c for the air inlet pipe 6a is arranged between the air inlet pipe 6a and the bottom of a cone; the dust exhaust pipe 5a is provided with a semicircular opening which is flush with the bottom of the cone and then welded and fixed; the upper part of the dust exhaust pipe 5a with a semicircular opening part is provided with a plurality of round hole apertures with the diameter of more than 2mm and the distance between the round hole apertures of 4-5 mm and the height of more than 2 on the inclined plane and the side surface of the coneA semi-cone metal screen 3 with the size of 00mm and the cone angle of 60 degrees, a steel plate without round holes is arranged at the top of the semi-cone metal screen 3, an air inlet branch pipe 6b bypassed through an air inlet pipe 6a is inserted at the top of the semi-cone metal screen 3, and the semi-cone metal screen 3 is placed at the upper parts of the cone and the non-opened dust exhaust pipe 6a and is fixed in a welding mode; when the air inlet branch pipe is inserted into the top of the semi-cone metal screen 3, and the air flowing in through the air inlet branch pipe 6b drives the carbon black dust 4 to flow through the dust discharging pipe 5a via the semi-cone metal screen 2, a cone with a downward tip can be formed, a necessary air driving space is reserved, and the air pressure is utilized to enable the carbon black dust 4 to naturally sink and flow into the dust discharging pipe 5a at the opening part; the side surfaces of the cylindrical barrel are respectively provided with a reclaimed water inlet pipe 16a for cleaning the barrel, which is connected with a reclaimed water inlet valve 16 for inflow of reclaimed water inlet, and the reclaimed water inlet pipe 16a is also bypassed on a dust exhaust air pipe 7b; the side of the cylindrical barrel is provided with a dust return pipe 10a which is connected with the dust return valve 10 and an observation hole 15 which can visually observe the capacity and the height of the carbon black dust 4 and is provided with transparent organic glass, the width of the observation hole 15 is set to 120mm, the height is set to be 500-700 mm, and the observation hole 15 is set to deviate from a central line 22.5 0 Is located at the position of (2); the dust return pipe 10a penetrating through the inside and outside of the cylindrical barrel is connected with the dust return air door 10 and the dust exhaust air pipe 7b, once the dust exhaust air fan 7 stops running, the dust exhaust one-way valve 7a is automatically closed, the dust return air door 10 is opened, and at the moment, the carbon black dust 4 in the dust exhaust air pipe 7b can flow into the carbon black dust collection tank 2 through the dust return pipe 10a and the dust return air door 10 for storage and reuse.
According to the figures 1, 2, 3, 4, 5, 6 and 7, the stacked gas-solid-liquid three-phase spraying device and asphalt flue gas pretreatment system 1, a liquid storage tank 21 made of glass fiber reinforced plastic is provided with a safety valve 27 and an electronic liquid level meter 28, wherein the top of the liquid storage tank 21 is provided with a valve opening when the pressure is more than or equal to 0.2MPa, and a liquid storage exhaust pipe 27a arranged on the safety valve 27 is connected with a flue gas collecting pipe 41; a drain pipe is arranged at the lower part of the liquid storage tank 21 and is connected with a drain valve 24, a water inlet valve 16 connected with an alkaline solution pressing pipe 22 and a reclaimed water inlet pipe 16a is arranged on the liquid storage tank 21, an external hose joint 23, a liquid inlet valve and the alkaline solution pressing pipe 22 are connected with each other, the gas-liquid ratio suitable for spraying and degrading sulfides and the molar specific capacity of alkaline solution for balancing acid gas are put into the liquid storage tank 21 by an alkaline solution tank truck through the hose joint 23 and the alkaline solution pressing pipe 22 which are externally connected with the liquid inlet valve, and the reclaimed water flowing in through the reclaimed water inlet pipe 16a and the water inlet valve 16a are mixed, and a liquid supply pipe arranged on the liquid storage tank 21 is connected with a liquid supply valve 25 and a liquid supply pump 26; an air compressor 31 is used for compressing air to a pressure of 0.5MPa, an air storage tank 32 with a pressure of not less than 1.0MPa is arranged through a compressed air pipe 33 for storing, and air ball valves 34 are arranged at the air inlet and the air outlet of the air storage tank 32; the carbon black dust 4 is used as solid matters for absorbing dust tar in high-temperature hot-pressed asphalt flue gas to spray, and an air inlet valve 6 with adjustable air inflow and a dust exhaust fan 7, a dust exhaust one-way valve 7a and a dust exhaust air pipe 7b are connected by a carbon black dust collecting tank 2 and a dust exhaust pipe 5a in combination with an air inlet pipe 6 a; the liquid spraying is to mix the alkaline solution capacity of degrading sulfide and the reclaimed water in the liquid storage tank 21 according to the molar ratio of acid-base balance by detecting the concentration of sulfide, and then to connect the liquid supply pipe and the liquid supply valve 25, the liquid supply pump 26 and the liquid supply check valve 26a and the alkaline solution spraying liquid supply pipe 26b with the liquid supply ball valve 26c via the liquid storage tank 21.
According to the figures 1, 2, 3, 4, 5, 6 and 7, the stacked gas-solid-liquid three-phase spraying device and asphalt flue gas pretreatment system 1, the stacked gas-solid-liquid three-phase spraying device 42 can process and manufacture pipelines with the same caliber as the flue gas collecting pipe 51, flanges are arranged at two ends of the pipeline, three oval holes with equal angles and diameters DN 32-DN 50 are arranged on the side surface of the pipeline at a distance between 150 and 200mm from the flange height L, and the oval holes with diameters DN 32-DN 50 are arranged on the side surface of the pipeline at 45 0 In the angular position, three pipelines with the same diameter between DN32 and DN50 are inserted for the nozzles of the alkaline solution spraying liquid supply pipe 26b and the dust exhaust air pipe 7b for spraying the carbon black dust 4, the central extension lines of the three nozzles are intersected with the central line of the overlapped gas-solid-liquid three-phase spraying device 42, the length of the nozzles of the overlapped gas-solid-liquid three-phase spraying device 42 is less than or equal to the size between 100mm, and the size is obtained by welding the nozzlesFixing; alkaline solution spraying liquid supply pipe 26b and dust exhaust air pipe 7b for spraying carbon black dust 4 with the same pipe diameter between three DN32 and DN50 are 90 0 Round holes with the size of 15-20 mm are formed in the bent pipe, compressed air pipes 33 with the pipe diameters of DN 10-DN 15 are respectively inserted into the round holes, and the compressed air pipes 33 are welded and fixed after being inserted into the alkaline solution spraying liquid supply pipe 26b and the carbon black dust 4 spraying dust exhaust air pipe 7b with the depth distance K of 50-100 mm; ball valves for adjusting the liquid supply amount, the dust discharge amount and the compressed air amount are arranged on an alkaline solution spraying liquid supply pipe 26b of the superimposed gas-solid-liquid three-phase spraying device 42 and a dust discharge air pipe 7b and a compressed air pipe 33 for spraying the carbon black dust 4, and the dust discharge air pump 26 and the air compressor 31 are started to respectively press the carbon black dust 4, diluted alkaline solution and compressed air into the superimposed gas-solid-liquid three-phase spraying device 42 for high-efficiency pretreatment of spraying, cooling, degrading sulfides and adsorbing tar on high-temperature asphalt flue gas.
The stacked gas-solid-liquid three-phase spraying device and asphalt flue gas pretreatment system 1 is simple and reasonable, and the working principle is as follows: the carbon black dust 4 is used as solid matters for absorbing dust-containing tar in high-temperature hot-pressed asphalt flue gas to spray, and an air inlet valve 6, a dust exhaust fan 7, a dust exhaust one-way valve 7a, a dust exhaust air pipe 7b and a dust exhaust ball valve 7c which can adjust the air inflow are connected by a carbon black dust collecting tank 2 and a dust exhaust pipe 5a in combination with an air inlet pipe 6 a; the liquid spraying is to mix and dilute the alkali solution capacity for degrading sulfide and the reclaimed water flowing in through the reclaimed water inlet pipe 16a and the water inlet valve 16 in the liquid storage tank 21 according to the molar ratio of acid-base balance by detecting the concentration of sulfide, and then to connect the liquid supply pipe and the liquid supply valve 25, the liquid supply pump 26, the liquid supply one-way valve 26a and the alkali solution spraying liquid supply pipe 26b with the liquid supply ball valve 26c through the liquid storage tank 21; the gas spraying is to compress air to a pressure of 0.5MPa by an air compressor 31, and store and hold an air pipe 33 and an air ball valve 34 by an air storage tank 32; an asphalt flue gas pretreatment system is formed by combining an overlapped gas-solid-liquid three-phase spray device 42 through adjustable valves configured by the pipelines; when the asphalt flue gas containing dust, sulfides and fog drops under high temperature hot pressure flows into the flue gas collecting pipe 41 and the stacked gas-solid-liquid three-phase spraying device 42, the gas-liquid ratio of spraying and the gas-solid ratio of absorbing dust-containing tar are properly adjusted according to the concentration of the dust-containing tar, sulfides and fog drops in the asphalt flue gas, compressed air with the pressure of 0.5MPa is used for starting the dust exhaust fan 7, the liquid supply pump 26 and the air compressor 31, and the carbon black dust 4, diluted alkaline solution and compressed air are respectively sent into the stacked gas-solid-liquid three-phase spraying device 42 to spray and cool the asphalt flue gas flowing through under the working condition of high temperature hot pressure, degrade sulfides and absorb tar.
Claims (2)
1. Superimposed gas-solid-liquid three-phase spray set and pitch flue gas pretreatment systems, characterized by: the solid spraying device is used for selecting carbon black dust, putting the carbon black dust into a carbon black dust collection tank, wherein a dust exhaust pipe, an air inlet pipe and an air inlet branch pipe are arranged in the tank, the dust exhaust pipe is connected with a dust exhaust air door and a dust exhaust fan, and the dust exhaust pipe is connected with the air inlet pipe and the air inlet branch pipe through the power of the dust exhaust fan to pump the carbon black dust through the air flowing in through the air inlet pipe; the liquid storage tank is internally provided with an alkaline solution and reclaimed water which are mixed for liquid spraying, and a liquid supply pipe, a liquid supply valve and a liquid supply pump which are connected through the liquid storage tank; the air storage tank is connected with the pressure-sink air pipe through the air compressor, and the pressure-sink air is used for gas spraying; the device comprises a gas-solid-liquid pipeline, a gas-solid-liquid three-phase spraying device, a gas-liquid three-phase spraying device and a gas-liquid three-phase spraying device, wherein the gas-solid three-phase spraying device is arranged on the gas-liquid pipeline and is provided with various regulating valves;
the carbon black dust collection tank consists of a cylindrical barrel and a cone, wherein a dust exhaust pipe is arranged at the bottom of the cone and connected with an air inlet pipe, the air inlet pipe penetrating through the cylindrical barrel is connected with an air inlet valve, an air inlet branch pipe is bypassed on the air inlet pipe in the cylindrical barrel, and the caliber of the air inlet branch pipe is 1/3 of the caliber of the air inlet pipe; the dust exhaust pipe penetrating through the bottom of the cone is connected with a drain pipe by-pass, the caliber of the dust exhaust pipe is identical to that of the drain pipe, the drain pipe is connected with a drain valve, and the dust exhaust pipe is connected with a dust exhaust air door, a dust exhaust fan, a dust exhaust one-way valve and a dust exhaust air pipe;
the distance M between the center of the air inlet pipe penetrating through the cylindrical barrel and the center of the cylindrical barrel is set to be 80-120 mm, the distance O between the horizontal center of the air inlet pipe and the cover plate of the cylindrical barrel is set to be 120-150 mm, and a fixing bracket of the air inlet pipe is arranged between the air inlet pipe and the bottom of the cone;
the dust exhaust pipe is provided with a semicircular opening, the semicircular opening is flush with the bottom of the cone and then welded and fixed, a plurality of semicircular cone metal screens with the aperture of more than 2mm, the spacing between the aperture of the circular holes of 4-5 mm and the height of more than 200mm and the angle of the cone are arranged on the inclined plane and the side surface of the cone, a steel plate without circular holes is arranged at the top of the semicircular cone metal screen, an air inlet branch pipe bypassed by an air inlet pipe is inserted into the top of the semicircular cone metal screen, and the semicircular cone metal screen is placed at the upper parts of the cone and the dust exhaust pipe without the opening and fixed by welding;
the air inlet branch pipe is inserted into the top of the semi-cone metal screen, and when the air flowing in through the air inlet branch pipe is used for driving the carbon black dust to flow through the dust discharging pipe via the semi-cone metal screen, a cone with a downward tip can be formed, necessary air driving space can be reserved, and the carbon black dust can naturally sink and flow into the dust discharging pipe at the opening part by utilizing air pressure.
2. The superimposed gas-solid-liquid three-phase spray device and asphalt flue gas pretreatment system according to claim 1, characterized in that: the overlapped gas-solid-liquid three-phase spraying device can be used for processing and manufacturing a pipeline with the same caliber as the flue gas collecting pipe, flanges are arranged at two ends of the pipeline, three oval holes with equal angles and diameters DN 32-DN 50 are arranged on the side surface of the pipeline in a dimension between 150 and 200mm away from the flange, and the diameters of the oval holes are 45 0 The three pipelines with the same pipe diameter are inserted into the three nozzles of the alkaline solution spraying liquid supply pipe and the carbon black dust spraying dust exhaust pipe at the angle position, the central extension lines of the three nozzles are intersected with the central line of the superimposed gas-solid-liquid three-phase spraying device, the length of the nozzles of the device is smaller than or equal to 100mm, and the nozzles are fixed in a welding mode;
90 of alkaline solution spraying liquid supply pipe and dust exhaust air pipe for spraying carbon black dust with same pipe diameter between three DN 32-DN 50 0 Round holes with the size of 15-20 mm are formed in the bent pipe, compressed air pipes with the pipe diameters of DN 10-DN 15 are respectively inserted into the round holes, and the compressed air pipes are welded and fixed after being inserted into the alkaline solution spraying liquid supply pipe and the dust exhaust air pipe for spraying carbon black dust, wherein the depth distance K of the dust exhaust air pipe is 50-100 mm;
the alkaline solution spraying liquid supply pipe of the superimposed gas-solid-liquid three-phase spraying device, the dust exhaust air pipe for spraying carbon black dust and the compressed air pipe are respectively provided with ball valves for adjusting the liquid supply amount, the dust exhaust amount and the compressed air amount, the dust exhaust fan, the liquid supply pump and the air compressor are started, and the dust, the alkaline solution and the compressed air are respectively sent into the superimposed gas-solid-liquid three-phase spraying device to spray, cool and degrade sulfide and adsorb tar to high-temperature asphalt flue gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223367013.1U CN219128829U (en) | 2022-12-15 | 2022-12-15 | Superimposed gas-solid-liquid three-phase spraying device and asphalt flue gas pretreatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223367013.1U CN219128829U (en) | 2022-12-15 | 2022-12-15 | Superimposed gas-solid-liquid three-phase spraying device and asphalt flue gas pretreatment system |
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| Publication Number | Publication Date |
|---|---|
| CN219128829U true CN219128829U (en) | 2023-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223367013.1U Active CN219128829U (en) | 2022-12-15 | 2022-12-15 | Superimposed gas-solid-liquid three-phase spraying device and asphalt flue gas pretreatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219128829U (en) |
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2022
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