CN115006966A - Waste gas treatment device for waste engine oil regeneration process - Google Patents
Waste gas treatment device for waste engine oil regeneration process Download PDFInfo
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- CN115006966A CN115006966A CN202210795035.3A CN202210795035A CN115006966A CN 115006966 A CN115006966 A CN 115006966A CN 202210795035 A CN202210795035 A CN 202210795035A CN 115006966 A CN115006966 A CN 115006966A
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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
- 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
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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
- B01D53/1412—Controlling the absorption process
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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
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/55—Compounds of silicon, phosphorus, germanium or arsenic
- B01D2257/556—Organic compounds
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Abstract
The application discloses exhaust treatment device of used oil regeneration technology, the technical field who relates to waste oil regeneration in-process exhaust treatment, it includes scrubbing tower and adsorption tower, the inner chamber top of scrubbing tower is equipped with the mechanism that sprays that is used for spraying the detergent, the scrubbing tower bottom is equipped with the liquid outlet, swivelling joint has the well axostylus axostyle of vertical setting in the scrubbing tower, well axostylus axostyle bottom has set firmly forward wind wheel, well axostylus axostyle upper portion has set firmly reverse wind wheel, the blade of reverse wind wheel is buckled the direction and is buckled opposite direction with the blade of forward wind wheel, be equipped with the lower air inlet that corresponds with forward wind wheel on the scrubbing tower and the last air inlet that corresponds with reverse wind wheel, last air inlet and lower air inlet are used for letting in waste gas and rotate with drive forward wind wheel and reverse wind wheel, the scrubbing tower top is equipped with the gas vent. This application has promoted the absorption effect to the silicon class organic matter in the waste gas through rationally arranging forward wind wheel and reverse wind wheel.
Description
Technical Field
The invention relates to the technical field of waste gas treatment in a waste oil regeneration process, in particular to a waste gas treatment device for a waste oil regeneration process.
Background
The engine oil mainly plays roles of lubrication, cooling, rust prevention, cleaning, sealing and buffering on various types of machinery, is influenced by the invasion of external pollutants such as dust, metal chips and moisture in the using process of the machinery and the generation of colloid in long-term use, and gradually deteriorates. Most of the components in the deteriorated engine oil are the main viscosity carriers and effective components of the engine oil and can be recycled, which is the potential power for regenerating the waste engine oil.
In the regeneration process of the waste engine oil, reduced pressure distillation is a key step, the waste engine oil is separated into different components for collection, but in the step, a large amount of waste gas containing silicon organic matters is easily generated due to heating and cracking, and the part of waste gas can be discharged after being introduced into a combustion furnace for combustion treatment.
In the process of introducing the waste gas containing the silicon organic matters into the combustion furnace for combustion, a large amount of silicon dioxide generated by silicon oil is easily generated, and the silicon dioxide is attached to the inner wall in the combustion furnace and scales, so that the combustion efficiency of the combustion furnace is influenced.
In order to solve the problem, the treatment method in the related art mainly adopts a mode of removing most of silicon organic matters in the waste gas by spraying in a washing tower and being matched with adsorption removal of an adsorption tower, and then the waste gas is introduced into a combustion furnace. During treatment, waste gas is introduced into the washing tower from the lower part of the washing tower, the solvent is sprayed downwards from the top of the washing tower through the sprayer, the waste gas is mixed with the solvent in the upward flowing process, the mixing effect is poor, the absorption effect on silicon organic matters in the waste gas is poor, and an improvement space exists.
Disclosure of Invention
In order to promote the mixed effect of detergent and waste gas, the application provides a waste gas treatment device of used oil regeneration technology.
The application provides a waste gas treatment device of used oil regeneration technology adopts following technical scheme:
the waste gas treatment device comprises a washing tower and an adsorption tower, wherein a spraying mechanism used for spraying a detergent is arranged at the top end of an inner cavity of the washing tower, a liquid outlet is formed in the bottom end of the washing tower, a vertically arranged middle shaft rod is rotatably connected to the washing tower, a forward wind wheel is fixedly arranged at the bottom of the middle shaft rod, a reverse wind wheel is fixedly arranged on the upper portion of the middle shaft rod, the bending direction of blades of the reverse wind wheel is opposite to that of blades of the forward wind wheel, a lower air inlet corresponding to the forward wind wheel and an upper air inlet corresponding to the reverse wind wheel are formed in the washing tower, the upper air inlet and the lower air inlet are used for introducing waste gas to drive the forward wind wheel and the reverse wind wheel to rotate, and an exhaust port is formed in the top end of the washing tower.
By adopting the technical scheme, in the actual production and treatment process of the waste engine oil, the waste gas containing silicon organic matters is divided into two parts which are respectively introduced into the washing tower through the lower air inlet and the upper air inlet, the waste gas introduced through the lower air inlet exerts an acting force on the forward wind wheel to drive the forward wind wheel to rotate, the waste gas introduced through the upper air inlet exerts an acting force on the reverse wind wheel to drive the reverse wind wheel to rotate, the rotating directions of the forward wind wheel and the reverse wind wheel are the same, wherein the driven airflow direction of the region corresponding to the forward wind wheel is upward, the airflow direction corresponding to the region corresponding to the reverse wind wheel is downward, the two parts of waste gas entering the washing tower form opposite rushing due to the opposite airflow directions, so that the waste gas airflow is strongly disturbed, the waste gas is more fully contacted with the detergent filled in the inner cavity of the washing tower, and the mixing effect of the detergent and the waste gas is effectively improved, the waste gas after being fully mixed with the washing agent is discharged into an adsorption tower for adsorption through an exhaust port at the top end of the washing tower, the waste gas after adsorption is discharged into a combustion furnace for combustion, and the washing agent in the washing tower is discharged through a liquid outlet at the bottom end of the washing tower; in addition, the detergent is diffused to the periphery under the action of the forward wind wheel and the reverse wind wheel, and the reverse wind wheel accelerates the falling of the detergent, so that the detergent is more fully contacted with the waste gas, and the mixing effect of the detergent and the waste gas is further improved; this application has promoted the absorption effect to the silicon class organic matter in the waste gas through rationally arranging forward wind wheel and reverse wind wheel.
Preferably, the air inlet direction of the lower air inlet is arranged along the tangential direction of the outer circumference of the forward wind wheel, and the air inlet direction of the upper air inlet is arranged along the tangential direction of the outer circumference of the reverse wind wheel.
By adopting the technical scheme, the acting force applied to the blades of the wind wheel when the waste gas enters the wind turbine is maximized, and the wind turbine is favorably driven to rotate.
Preferably, the inner wall of the washing tower is provided with a disturbing piece.
Through adopting above-mentioned technical scheme, waste gas flows along the inner wall of scrubbing tower when entering in the scrubbing tower along the tangential direction of the outer circumference of wind wheel, forms the wall flow, and the setting of disturbing piece blocks and disturbs the wall flow, disturbs the flow path of wall flow, realizes the further disturbance to the waste gas air current, and then has promoted the mixed effect of waste gas and detergent.
Preferably, the disturbing pieces are a plurality of bulges arranged on the inner wall of the washing tower at intervals;
or the disturbing pieces are disturbing battens annularly arranged on the inner wall of the washing tower, and a plurality of groups of the disturbing battens are arranged at intervals along the axial direction of the washing tower.
By adopting the technical scheme, the arrangement of the bulges or the plurality of groups of disturbance slats blocks and disturbs the moving path of the waste gas flowing along the wall, and the mixing effect between the waste gas and the detergent is improved.
Preferably, the middle shaft rod is rotatably connected with a free disturbance wheel, and the free disturbance wheel is positioned above the reverse wind wheel and below the spraying mechanism.
Through adopting above-mentioned technical scheme, freely disturb the action of driving wheel under the air current in the scrubbing tower and rotate, carry out further stirring to the detergent via spraying mechanism spun, promote the mixed effect between waste gas and the detergent.
Preferably, the upper air inlet and the lower air inlet are both provided with a second control valve for controlling air inflow.
By adopting the technical scheme, in the actual processing process of the waste engine oil, because the proportions of the components in the waste engine oil of different groups are different, the content of silicon organic matters in waste gas generated after the waste oil of different groups is subjected to a reduced pressure distillation process is also different; when the content of silicon organic matters in the waste gas is less, the air inflow at the lower air inlet and the air inflow at the upper air inlet are adjusted through the second control valve, so that the flow at the lower air inlet is larger than that at the upper air inlet, the rising of the waste gas flow is accelerated, and the waste gas is rapidly treated.
Preferably, the spraying mechanism comprises a liquid supply pipeline arranged in the washing tower, and a plurality of spraying heads are arranged on the liquid supply pipeline;
the liquid supply pipeline comprises a lower connecting pipe fixedly arranged on the middle shaft rod, an upper connecting pipe coaxially rotating on the lower connecting pipe, a liquid supply pipe communicated with the upper connecting pipe, a first control valve arranged on the liquid supply pipe and a plurality of connecting branch pipes communicated with the lower connecting pipe, the spray head is communicated with the connecting branch pipes, and the lower connecting pipe is rotatably connected with the spray tower.
By adopting the technical scheme, when the middle shaft rod rotates along with the forward wind wheel and the reverse wind wheel, the lower connecting pipe, the connecting branch pipe and the spray head are driven to rotate together, so that mist is spirally sprayed under the action of centrifugal force, and the detergent and waste gas are mixed more uniformly.
Preferably, the exhaust port is located outside the outer edge of the spraying mechanism, and the spray head located on the periphery is arranged in an outward inclined mode.
Through adopting above-mentioned technical scheme, avoid connecting branch pipe and atomising head to rotate the in-process and cause the influence to giving vent to anger normally of gas vent, nevertheless set up like this and can make the spraying scope that sprays the mechanism reduce, consequently with the atomising head slope setting of periphery, when having guaranteed the spraying scope that sprays the mechanism, avoided because of keeping away the influence that the position led to the fact to the mixed effect of detergent and waste gas.
Preferably, the liquid outlet is detachably communicated with a return pipe, the other end of the return pipe is communicated with the upper connecting pipe, and the return pipe is provided with a pump body.
By adopting the technical scheme, the washing agent is sprayed into the washing tower through the spray head, after a certain amount of washing agent is sprayed, the first control valve on the liquid supply pipe is closed, the liquid supply is stopped, the washing agent is fully mixed with the waste gas in the washing tower, then the washing agent is discharged through the liquid outlet, and then the washing agent flows back to the upper connecting pipe through the return pipe, so that the cyclic utilization of the washing agent is realized, and the waste of resources is reduced; after the detergent in the washing tower circulates for a period of time, the connection between the return pipe and the liquid outlet is released, so that the liquid is discharged from the liquid outlet, and then new detergent is introduced through the liquid supply pipe.
Preferably, the forward wind wheels are distributed at intervals along the axis direction of the middle shaft rod, the reverse wind wheels are distributed at intervals along the axis direction of the middle shaft rod, the upper air inlets correspond to the reverse wind wheels positioned at the top, and the lower air inlets correspond to the forward wind wheels positioned at the bottom;
the diameters of the forward wind wheels are gradually reduced from bottom to top, and the diameters of the reverse wind wheels are gradually increased from bottom to top.
Through adopting above-mentioned technical scheme, through setting up forward wind wheel and the reverse wind wheel that the diameter constantly increases progressively to both ends, strengthened the disturbance to the air current in the scrubbing tower, further promoted the mixed effect of waste gas and detergent.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the positive wind wheel and the reverse wind wheel are reasonably arranged, so that two waste gases entering the washing tower form opposite impact due to opposite air flow directions, the waste gas air flow is strongly disturbed, the waste gases are more fully contacted with the detergent filled in the inner cavity of the washing tower, the mixing effect of the detergent and the waste gases is effectively improved, and the absorption effect of silicon organic matters in the waste gases is further improved;
2. when entering the washing tower along the tangential direction of the outer circumference of the wind wheel, the waste gas flows along the inner wall of the washing tower to form wall flow, the arrangement of the disturbing piece blocks and disturbs the wall flow, disturbs the flow path of the wall flow, realizes further disturbance of the waste gas flow, and further improves the mixing effect of the waste gas and the detergent;
3. the free disturbance wheel rotates under the action of the airflow in the washing tower, further stirs the washing agent sprayed out by the spraying mechanism, and further improves the mixing effect between the waste gas and the washing agent.
Drawings
FIG. 1 is a schematic view showing the structures of a washing column, an adsorption column and the relationship therebetween in the first embodiment.
Fig. 2 is a schematic sectional view showing a structure in a scrubber in the first embodiment.
Fig. 3 is a partial structural schematic diagram showing the structures of the intermediate shaft, the forward wind wheel, the reverse wind wheel and the spraying mechanism in the first embodiment.
Fig. 4 is a position diagram showing the position of the second control valve in the second embodiment.
Fig. 5 is a partial structural schematic diagram showing a structure of a plurality of forward wind wheels and a plurality of reverse wind wheels in the third embodiment.
Description of reference numerals:
1. a washing tower; 11. a liquid outlet pipe; 12. an upper inlet port; 13. a lower air inlet; 14. an exhaust port; 15. an upper gas supply pipe; 16. a lower gas supply pipe; 17. a protrusion; 18. a liquid outlet; 2. an adsorption tower; 3. a middle shaft lever; 31. a forward wind wheel; 32. a reverse wind wheel; 33. a freely perturbing wheel; 4. a spraying mechanism; 41. a liquid supply line; 411. a lower connecting pipe; 412. an upper connecting pipe; 413. connecting branch pipes; 42. a spray head; 5. a liquid supply tube; 6. a return pipe; 61. a first tube section; 62. a second tube section; 7. a second control valve.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
Example one
The embodiment of the application discloses exhaust treatment device of used oil regeneration technology combines fig. 1 and fig. 2, including scrubbing tower 1 and adsorption tower 2, the waste gas that produces among the used oil vacuum distillation process lets in earlier in scrubbing tower 1, mixes with the detergent that sprays from scrubbing tower 1 top, washes waste gas, then lets in and carries out the active carbon adsorption in adsorption tower 2 and handle.
In this example, methyl pyrrolidone was used as the detergent.
A middle shaft rod 3 coaxial with the washing tower 1 is arranged in the inner cavity of the washing tower 1, and the bottom end of the middle shaft rod 3 is rotatably connected to the washing tower 1. The top end of the washing tower 1 is provided with a spraying mechanism 4 for spraying a detergent, the bottom end of the spraying mechanism 4 is fixed with the middle shaft rod 3, and the outer edge of the bottom end of the washing tower 1 is provided with a liquid outlet 18 for discharging the detergent.
The bottom of the middle shaft rod 3 is coaxially fixed with a forward wind wheel 31, the middle of the middle shaft rod 3 is fixed with a reverse wind wheel 32 at an upward position, the bending direction of the blades of the reverse wind wheel 32 is opposite to that of the blades of the forward wind wheel 31, the direction of the air flow driven by the forward wind wheel 31 when rotating is upward, the direction of the air flow driven by the reverse wind wheel 32 when rotating is downward, and the rotating directions of the forward wind wheel 31 and the reverse wind wheel 32 when rotating are the same.
The middle shaft lever 3 is rotatably connected with a free disturbance wheel 33 which is coaxially arranged with the middle shaft lever, the free disturbance wheel 33 is positioned between the reverse wind wheel 32 and the spraying mechanism 4, and the free disturbance wheel 33 can rotate under the action of the air flow in the washing tower 1.
The scrubber 1 is provided with an air inlet for introducing waste gas and an exhaust port 14 for discharging the waste gas, and the exhaust port 14 is positioned at the outer edge of the top end of the scrubber 1.
The air inlet direction of the air inlet is arranged along the tangential direction of the outer circumference of the wind wheel, two groups of air inlets are arranged at intervals up and down, the upper air inlet 12 corresponding to the reverse wind wheel 32 is positioned above the air inlet, and the lower air inlet 13 corresponding to the forward wind wheel 31 is positioned below the air inlet. Every group air inlet all has a plurality ofly along scrubbing tower 1's circumference interval equipartition, and in this embodiment, the quantity of every group air inlet all establishes to four, and air inlet department intercommunication is fixed with the intake pipe that sets up along its direction of admitting air, and the inlet end of a plurality of intake pipes communicates jointly has same air supply pipe, and the other end of air supply pipe and vacuum distillation device's exhaust outlet pipe intercommunication are located the top and are last air supply pipe 15, are located the below and are air supply pipe 16 down.
Waste gas is divided into two parts and is respectively introduced into the washing tower 1 through the lower air inlet 13 and the upper air inlet 12, the forward wind wheel 31 and the reverse wind wheel 32 are driven to rotate, and the air flow directions of the corresponding areas of the forward wind wheel 31 and the reverse wind wheel 32 are opposite, so that the two parts of waste gas entering the washing tower 1 form opposite impact due to the opposite air flow directions, the waste gas air flow is strongly disturbed, the waste gas is more fully contacted with a detergent filled in the inner cavity of the washing tower 1, and the mixing effect of the detergent and the waste gas is effectively improved.
The exhaust gas forms wall-sticking flow when entering the washing tower 1 along the tangential direction of the outer circumference of the wind wheel, in order to further increase the disturbance to the air flow in the inner cavity of the washing tower 1, a disturbance piece is distributed on the inner wall of the washing tower 1, and the disturbance piece is used for further interrupting the flow path of the wall-sticking flow, thereby further improving the mixing effect of the exhaust gas and the detergent.
In this embodiment, the disturbing elements may be a plurality of protrusions 17 disposed on the inner wall of the washing tower 1 at intervals, the protrusions 17 are disposed in a semicircular shape, and the protrusions 17 are disposed in a circumferential array and are vertically disposed at intervals. In other embodiments, the disturbing member may also be a plurality of groups of disturbing slats annularly arranged on the inner wall of the washing tower 1, and the disturbing slats are arranged along the axial direction of the washing tower 1 at intervals, and in extension, the disturbing member is an outward convex or inward concave member capable of disturbing the exhaust gas flow tightly attached to the inner wall of the washing tower 1.
The spraying mechanism 4 includes a liquid supply pipe 41 and a plurality of spray heads 42 provided in the liquid supply pipe 41. The liquid supply pipeline 41 comprises a lower connecting pipe 411 rotatably connected to the washing tower 1, an upper connecting pipe 412 coaxially rotated on the lower connecting pipe 411 and a plurality of connecting branch pipes 413 communicated and fixed with the lower connecting pipe 411, the connecting branch pipes 413 extend along the radial direction of the washing tower 1, the plurality of connecting branch pipes 413 are uniformly distributed at intervals along the circumferential direction of the washing tower 1, and a plurality of spray heads 42 are uniformly distributed on the connecting pipes at intervals along the axial direction of the connecting branch pipes 413. A bracket for supporting the upper adapter 412 is fixed to the top end of the washing tower 1, and the upper adapter 412 is fixed to the bracket, which is not shown in the drawing.
In order to facilitate the rotation of the middle shaft rod 3, the bottom end of the middle shaft rod 3 and the lower connecting pipe 411 are rotatably connected with the washing tower 1 through bearings.
It should be noted that, in order to avoid the exhaust port 14, the spray head 42 located at the periphery is disposed to be inclined outward, and the inclined spray head 42 ensures the spraying range of the spraying mechanism 4, and simultaneously avoids the influence on the mixing effect of the detergent and the exhaust gas due to the avoiding.
The upper connecting pipe 412 is also communicated with a liquid supply pipe 5, one end of the liquid supply pipe 5, which is far away from the upper connecting pipe 412, extends into a container containing detergent, and the liquid supply pipe 5 is provided with a first control valve for controlling the on-off of the liquid supply pipe 5.
A liquid outlet pipe 11 is fixed at a liquid outlet 18 of the washing tower 1, in order to realize the recycling of the detergent, a return pipe 6 is connected between the liquid outlet pipe 11 and the upper connecting pipe 412 through a flange, and a pump body is arranged on the return pipe 6. The return pipe 6 comprises a first pipe section 61 connected with the outlet pipe 11 and a second pipe section 62 connected with the upper connecting pipe 412, and the first pipe section 61 and the second pipe section 62 are connected through flanges.
After a certain amount of detergent is supplied into the washing tower 1 by the liquid supply pipe 5, closing the first control valve on the liquid supply pipe 5 and cutting off a liquid supply channel of the liquid supply pipe 5; the detergent in the washing tower 1 is discharged into the return pipe 6 through the liquid outlet 18 at the bottom end of the washing tower 1, and the pump body pumps the detergent in the return pipe 6 into the upper connecting pipe 412, so that the recycling of the detergent is realized, the waste of resources is reduced, and the requirements of energy conservation and environmental protection are met.
The application principle of the waste gas treatment device of the waste engine oil regeneration process is as follows:
in the actual production and treatment process of the waste engine oil, the waste gas containing silicon organic matters is divided into two parts and is respectively introduced into the washing tower 1 through the lower air inlet 13 and the upper air inlet 12, the waste gas introduced through the lower air inlet 13 exerts force on the forward wind wheel 31 to drive the forward wind wheel 31 to rotate, the waste gas introduced through the upper air inlet 12 exerts force on the reverse wind wheel 32 to drive the reverse wind wheel 32 to rotate, the rotation directions of the forward wind wheel 31 and the reverse wind wheel 32 are the same, wherein the driven airflow direction of the region corresponding to the forward wind wheel 31 is upward, the airflow direction corresponding to the region corresponding to the reverse wind wheel 32 is downward, the two parts of waste gas entering the washing tower 1 form opposite impact due to the opposite airflow directions, so that the waste gas airflow is strongly disturbed, the waste gas fully mixed with the detergent is discharged into the adsorption tower 2 through the exhaust port 14 at the top end of the washing tower 1 to be adsorbed, and discharging the washing agent into a combustion furnace for combustion after the adsorption is finished, and discharging the washing agent in the washing tower 1 through a liquid outlet 18 at the bottom end of the washing tower 1. This application is through rational arrangement forward wind wheel 31 and reverse wind wheel 32 for two strands of waste gas that get into in scrubbing tower 1 form the offset because the air current direction is relative, thereby carry out strong disturbance to the waste gas air current, make waste gas and be full of the more abundant contact of detergent in the scrubbing tower 1 inner chamber, effectively promoted the mixed effect of detergent and waste gas, and then promoted the absorption effect to the silicon class organic matter in the waste gas.
Example two
A waste gas treatment device for a used oil regeneration process, which is different from the first embodiment in that, referring to fig. 4, in order to further improve the treatment efficiency of waste gas containing silicon-based organic matters in the actual production process, a second control valve 7 for controlling the air input is arranged on each of the upper air supply pipe 15 and the lower air supply pipe 16. In this embodiment, the second control valve 7 is a flow rate control valve, and the flow rate control valve is electrically connected to the control system.
In the actual processing process of the waste engine oil, because the proportions of all components in the waste engine oil of different groups are different, the content of silicon organic matters in waste gas generated after the waste engine oil of different groups is subjected to a reduced pressure distillation process is also different; when the content of silicon organic matters in the waste gas is less, the air inflow at the lower air inlet 13 and the air inflow at the upper air inlet 12 are adjusted through the second control valve 7, so that the flow at the lower air inlet 13 is larger than that at the upper air inlet 12, the rising of the waste gas flow is accelerated, and the waste gas is rapidly treated.
EXAMPLE III
A waste gas treatment device for a waste engine oil regeneration process is different from the first embodiment in that referring to fig. 5, a plurality of forward wind wheels 31 are uniformly distributed in a vertical direction at intervals, and the diameters of the forward wind wheels 31 are gradually reduced from bottom to top; the reverse wind wheels 32 are vertically and uniformly distributed at intervals, and the diameters of the reverse wind wheels 32 are gradually increased from bottom to top. Upper inlet 12 corresponds to the uppermost counter rotor 32 and lower inlet 13 corresponds to the lowermost forward rotor 31. In this embodiment, the number of the forward wind rotor 31 and the reverse wind rotor 32 is preferably two.
Through setting up forward wind wheel 31 and reverse wind wheel 32 that the radial both ends of straight are constantly increased progressively, strengthened the disturbance to the air current in scrubbing tower 1, further promoted the mixed effect of waste gas and detergent.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a waste gas treatment device of used oil regeneration technology, includes scrubbing tower (1) and adsorption tower (2), its characterized in that: the top end of the inner cavity of the washing tower (1) is provided with a spraying mechanism (4) for spraying a detergent, a liquid outlet (18) is arranged at the bottom end of the washing tower (1), a middle shaft lever (3) which is vertically arranged is rotatably connected in the washing tower (1), a forward wind wheel (31) is fixedly arranged at the bottom of the middle shaft lever (3), a reverse wind wheel (32) is fixedly arranged at the upper part of the middle shaft lever (3), the bending direction of the blades of the reverse wind wheel (32) is opposite to that of the blades of the forward wind wheel (31), a lower air inlet (13) corresponding to the forward wind wheel (31) and an upper air inlet (12) corresponding to the reverse wind wheel (32) are arranged on the washing tower (1), the upper air inlet (12) and the lower air inlet (13) are used for introducing waste gas to drive the forward wind wheel (31) and the reverse wind wheel (32) to rotate, and the top end of the washing tower (1) is provided with an air outlet (14).
2. The exhaust gas treatment device of a used oil regeneration process according to claim 1, characterized in that: the air inlet direction of the lower air inlet (13) is arranged along the tangential direction of the outer circumference of the forward wind wheel (31), and the air inlet direction of the upper air inlet (12) is arranged along the tangential direction of the outer circumference of the reverse wind wheel (32).
3. The exhaust gas treatment device of a used oil regeneration process according to claim 2, characterized in that: the inner wall of the washing tower (1) is provided with a disturbing part.
4. The exhaust gas treatment device of a used oil regeneration process according to claim 3, characterized in that: the disturbing pieces are a plurality of bulges (17) which are arranged on the inner wall of the washing tower (1) at intervals;
or the disturbing pieces are disturbing battens annularly arranged on the inner wall of the washing tower (1), and a plurality of groups of the disturbing battens are arranged at intervals along the axial direction of the washing tower (1).
5. The exhaust gas treatment device of a used oil regeneration process according to claim 1, characterized in that: the middle shaft rod (3) is rotatably connected with a free disturbance wheel (33), and the free disturbance wheel (33) is positioned above the reverse wind wheel (32) and below the spraying mechanism (4).
6. The exhaust gas treatment device of a used oil regeneration process according to claim 1, wherein: and the upper air inlet (12) and the lower air inlet (13) are respectively provided with a second control valve (7) for controlling the air inflow.
7. The exhaust gas treatment device of a used oil regeneration process according to claim 1, characterized in that: the spraying mechanism (4) comprises a liquid supply pipeline (41) arranged in the washing tower (1), and a plurality of spraying heads (42) are arranged on the liquid supply pipeline (41);
the liquid supply pipeline (41) comprises a lower connecting pipe (411) fixedly arranged on the middle shaft rod (3), an upper connecting pipe (412) coaxially rotating on the lower connecting pipe (411), a liquid supply pipe (5) communicated with the upper connecting pipe (412), a first control valve arranged on the liquid supply pipe (5) and a plurality of connecting branch pipes (413) communicated with the lower connecting pipe (411), the spray head (42) is communicated with the connecting branch pipes (413), and the lower connecting pipe (411) is rotatably connected to the spray tower.
8. The exhaust gas treatment device of a used oil regeneration process according to claim 7, wherein: the exhaust port (14) is located on the outer side of the outer edge of the spraying mechanism (4) and located on the periphery, and the spraying head (42) is arranged in an outward inclined mode.
9. The exhaust gas treatment device of a used oil regeneration process according to claim 8, characterized in that: a return pipe (6) is detachably communicated with the liquid outlet (18), the other end of the return pipe (6) is communicated with the upper connecting pipe (412), and a pump body is arranged on the return pipe (6).
10. The exhaust gas treatment device of a used oil regeneration process according to claim 1, characterized in that: a plurality of forward wind wheels (31) are arranged at intervals along the axis direction of the middle shaft rod (3), a plurality of reverse wind wheels (32) are arranged at intervals along the axis direction of the middle shaft rod (3), the upper air inlets (12) correspond to the reverse wind wheels (32) positioned at the top, and the lower air inlets (13) correspond to the forward wind wheels (31) positioned at the bottom;
the diameters of the forward wind wheels (31) are gradually reduced from bottom to top, and the diameters of the reverse wind wheels (32) are gradually increased from bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210795035.3A CN115006966A (en) | 2022-07-07 | 2022-07-07 | Waste gas treatment device for waste engine oil regeneration process |
Applications Claiming Priority (1)
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| CN115945045A (en) * | 2022-11-15 | 2023-04-11 | 原初科技（北京）有限公司 | Coal-fired power plant flue carbon dioxide capturing device and use method thereof |
| CN116351234A (en) * | 2023-03-23 | 2023-06-30 | 汇舸(南通)环保设备有限公司 | Smoke residence time extension device and marine desulfurizing tower adopting same |
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| CN116351234B (en) * | 2023-03-23 | 2023-10-20 | 汇舸(南通)环保设备有限公司 | Smoke residence time extension device and marine desulfurizing tower adopting same |
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