CN111228939A - Waste gas self-circulation bypass purification treatment system and method thereof - Google Patents
Waste gas self-circulation bypass purification treatment system and method thereof Download PDFInfo
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- CN111228939A CN111228939A CN201911132618.2A CN201911132618A CN111228939A CN 111228939 A CN111228939 A CN 111228939A CN 201911132618 A CN201911132618 A CN 201911132618A CN 111228939 A CN111228939 A CN 111228939A
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- 239000002912 waste gas Substances 0.000 title claims abstract description 57
- 238000000746 purification Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 143
- 239000002699 waste material Substances 0.000 claims abstract description 139
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 99
- 238000012856 packing Methods 0.000 claims abstract description 43
- 238000005406 washing Methods 0.000 claims abstract description 42
- 239000007921 spray Substances 0.000 claims description 71
- 239000012530 fluid Substances 0.000 claims description 31
- 239000007789 gas Substances 0.000 claims description 30
- 238000002156 mixing Methods 0.000 claims description 30
- 238000005352 clarification Methods 0.000 claims description 28
- 238000000926 separation method Methods 0.000 claims description 27
- 239000012074 organic phase Substances 0.000 claims description 22
- 239000012071 phase Substances 0.000 claims description 18
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 238000005201 scrubbing Methods 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- 239000008346 aqueous phase Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/14—Packed scrubbers
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- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a waste gas self-circulation bypass purification treatment system and a waste gas self-circulation bypass purification treatment method, wherein the waste gas self-circulation bypass purification treatment system comprises a washing tower serving as a main body, a water tank and a waste liquid collecting tank are arranged beside the washing tower, the washing tower comprises an air outlet arranged at the top of the washing tower, a discharge outlet is arranged at the right side of the air outlet, a first packing layer is arranged below the air outlet, a rotational flow plate demisting layer is arranged below the first packing layer, a second packing layer is arranged below the flow plate demisting layer, a third packing layer is arranged below the second packing layer, a material inlet layer is arranged below the third. The invention solves the problem of higher waste gas treatment cost caused by no water circulation device in the traditional waste gas treatment system in the prior art. The invention has the advantages of lower waste gas treatment cost, obvious waste gas treatment effect, simpler structure and the like.
Description
Technical Field
The invention relates to an exhaust gas treatment system, in particular to an exhaust gas self-circulation bypass purification treatment system and a method thereof.
Background
Currently, the current practice is. Chinese patent discloses a waste gas treatment system on the net, and grant publication No. CN205903731U includes a waste gas treatment equipment, a heat abstractor, a spray set and a plurality of gas pipeline, a plurality of gas pipeline make spray set with heat abstractor reaches waste gas treatment equipment intercommunication, heat abstractor makes one follow the waste gas cooling that gas pipeline got into, spray set is right waste gas sprays so that get rid of partial impurity, waste gas treatment equipment is right waste gas handles, makes waste gas reaches the environmental protection requirement. The utility model discloses a waste gas treatment system passes through spray set and falls with the partial impurity processing in the waste gas earlier, and rethread exhaust-gas treatment equipment is right waste gas handles, makes waste gas reaches the environmental protection requirement, avoids for example the impurity of felt class in the waste gas to block up exhaust-gas treatment equipment.
Although one of the above-mentioned patent exhaust gas treatment systems has the advantage of preventing the exhaust gas treatment equipment from being blocked by impurities in the exhaust gas, such as felt, the exhaust gas treatment system is not provided with a water circulation device, so that the exhaust gas treatment system needs to consume a large amount of clean water when treating the exhaust gas, the exhaust gas treatment cost is high, and the economic benefit is low.
Disclosure of Invention
The invention provides an exhaust gas self-circulation bypass purification treatment system with a water circulation function and a method thereof, aiming at overcoming the problem that the traditional exhaust gas treatment system in the prior art has higher exhaust gas treatment cost because a water circulation device is not arranged.
The invention relates to a waste gas self-circulation bypass purification treatment system and a method thereof, which comprises a washing tower as a main body, wherein a water tank and a waste liquid collecting tank are arranged beside the washing tower, the washing tower comprises an air outlet arranged at the top of the washing tower, a discharge hole is arranged at the right side of the air outlet, a first packing layer is arranged below the air outlet, a rotational flow plate defogging layer is arranged below the first packing layer, a second packing layer is arranged below the flow plate defogging layer, a third packing layer is arranged below the second packing layer, a feeding layer is arranged below the third packing layer, an air inlet is arranged at the left side of the feeding layer, a waste liquid tank is arranged at the lower end of the air inlet, a first spray pipe frame is arranged in the first packing layer, a second spray pipe frame is arranged in the second packing layer, and a third spray pipe frame is arranged in the third, the waste liquid pond right-hand member be equipped with the leakage fluid dram, scrubbing tower and water tank between be equipped with waste liquid treatment device, the leakage fluid dram be connected through pipeline and hydraulic pump with waste liquid treatment device, the play water end of water tank spray pipe support, spray pipe support and No. three respectively and be connected through pipeline and hydraulic pump with a spray pipe support, No. two, waste liquid treatment device be connected through pipeline and hydraulic pump with the notes water end and the waste liquid collecting pit of water tank respectively.
During operation opens the valve of the air intake of scrubbing tower bottom earlier, later with the waste gas that needs to handle get into inside the scrubbing tower by the air intake, waste gas gets into and can the rebound in the scrubbing tower, No. three spray pipe support, No. two spray pipe support and spray on the pipe support and can wash waste gas in proper order, waste gas after triple washing finally can leave the scrubbing tower from the air outlet at the scrubbing tower top of the tower, dissolve in the harmful gas of water in the waste gas this moment and thoroughly detach.
After clear water and waste gas contact, can detach the harmful gas of the easy soluble in water that exists in the waste gas, clear water after the washing becomes the waste liquid, and this waste liquid is collected in the waste liquid pond at the bottom of the tower because gravity can fall into the scrubbing tower, and the waste liquid can pass through waste liquid treatment device under the drive of hydraulic pump, waste liquid treatment device can be with the aqueous phase and the organic phase separation in the waste liquid, the aqueous phase can be collected through pipeline and hydraulic pump entering water tank and carry out cyclic utilization, organic phase can get into the waste liquid collecting pit under the drive of hydraulic pump and collect.
Preferably, the waste liquid treatment device comprises a waste liquid mixing device, a waste liquid separating device and a clear water storage bin, the waste liquid mixing device comprises a mixer body, a fluid inlet pipe is arranged at the bottom end of the mixer body, a fluid lifting and mixing device is arranged inside the mixer body, a waste liquid outlet pipe is arranged above the fluid lifting and mixing device, a driving motor is arranged at the top end of the mixer body, a main shaft is installed at the output end of the driving motor, the fluid lifting and mixing device is installed on the main shaft, a dispersion disc is arranged at the lower end of the main shaft, the fluid inlet pipe is connected with a liquid outlet through a pipeline and a hydraulic pump, and the waste liquid outlet pipe is connected with the waste liquid separating device through a pipeline.
During the use, driving motor can drive the main shaft and rotate, and later the main shaft can drive fluid promotion mixing arrangement, and when the waste liquid got into blender body bottom, fluid promotion mixing arrangement can promote the mixed extraction processing to the waste liquid, and under fluid promotion mixing arrangement's operation, the waste liquid left the blender body and got into the clarification tank from mixing the looks outlet pipe and carries out clarification processing. Promote the in-process the dispersion impeller can be broken up the waste liquid tentatively, the waste liquid after breaking up gets into the fluid and promotes more even that mixing arrangement can mix.
Preferably, the fluid lifting and mixing device comprises a first lifting blade, a second lifting blade is arranged above the first lifting blade, the first lifting blade and the second lifting blade are respectively inserted into the main shaft, a first reverse laminar flow plate is arranged between the first lifting blade and the second lifting blade, and a second reverse laminar flow plate is arranged above the second lifting blade.
The first lifting paddle and the second lifting paddle can lift waste liquid in multiple stages during working, and therefore the lifting speed of the fluid lifting and mixing device is increased. The promotion paddle under driving motor's drive, can promote the waste liquid that gets into in the blender body, the waste liquid can flow the board through reverse laminar flow under the drive of promotion paddle, reverse laminar flow on the board the channel can let the waste liquid more even.
As preferred, waste liquid separator include steady flow chamber and depositing reservoir, steady flow chamber left end be equipped with the waste liquid entry, steady flow chamber right-hand member be equipped with the waste liquid export, steady flow indoor be equipped with two ribbon stirring rake, two ribbon stirring rake include the pivot, the pivot on be equipped with the oar area that is two spiral distributions, pivot upper end be equipped with the pivot motor that is used for driving the pivot, waste liquid entry and waste liquid export be connected through the pipeline.
When the steady flow groove works, the paddle belt can rotate clockwise at a slower speed under the driving of the rotating shaft motor, and the paddle belt can generate a circulation with a vertical mixing effect and a mixing wake zone with a larger range in the steady flow chamber in the rotating process, so that the shearing force is reduced as much as possible under the condition of ensuring mass transfer, liquid drops with uniform sizes are generated, and the phase-splitting time and organic entrainment are reduced.
Preferably, the left side of the clarification tank is communicated with a waste liquid outlet, a water distribution area for adjusting the flow is arranged between the waste liquid outlet and the clarification tank, a separation grid for improving the separation capacity of the clarification tank is arranged in the clarification tank, a water phase outlet and an organic phase outlet are arranged on the right side of the separation grid, and the organic phase outlet is connected with a waste liquid collecting tank through a pipeline and a hydraulic pump.
Preferably, the separation grid is composed of at least 3 grid plates arranged in parallel, a plurality of differential protrusions arranged at equal intervals are respectively arranged on the left side and the right side of each grid plate, a separation gap for separating waste liquid is arranged between every two adjacent differential protrusions, the width of each separation gap is 20-25 mm, and the number of the differential protrusions on the left side of each grid plate is less than that on the right side of each grid plate.
When the waste liquid passes through the water distribution area and is subjected to flow regulation, the waste liquid can pass through the separation grating at a relatively stable flow, the waste liquid can flow into the separation gaps among the differential bumps in the process, and the water phase and the organic phase in the waste liquid can be thoroughly separated due to the specific gravity difference between the water phase and the organic phase in the waste liquid. The quantity of the differential lug on the left side of grid plate is less than the one on right side of grid plate, and this design lets the grid plate left and right sides form the clearance poor, improves the separation effect to the waste liquid.
Preferably, the clear water outlet is connected with the water injection end of the water tank through a pipeline and a hydraulic pump, and the water outlet end of the water tank is respectively connected with the water injection end of the first spray pipe frame, the water injection end of the second spray pipe frame and the water injection end of the third spray pipe frame through the hydraulic pump and a diversion pipeline.
As preferred, a spray pipe support, No. two spray pipe supports and No. three spray pipe supports the same structure, a spray pipe support including as the crossbeam pipe of main part, crossbeam pipe right-hand member be equipped with the mouth of pipe that sprays, the mouth of pipe that sprays be connected through hydraulic pump and reposition of redundant personnel pipeline with the water tank, crossbeam pipe lower extreme be equipped with the stationary flow shower nozzle of a plurality of equipartition.
The waste gas treatment method of the invention comprises the following steps:
1) and opening a valve of the air inlet, introducing the waste gas into the air inlet, and enabling the waste gas to enter the washing tower and move upwards.
2) Waste gas that gets into the scrubbing tower can be followed from up and can be passed through No. three packing layers, No. two packing layers and a packing layer in proper order, and the shower nozzle that sprays on No. three spray pipe support, No. two spray pipe support and a spray pipe support can wash waste gas in proper order.
3) The waste gas after triple washing finally leaves the washing tower from the air outlet at the top of the washing tower.
4) In the washing process, the water tank provides clean water for cleaning for the third spraying pipe frame, the second spraying pipe frame and the first spraying pipe frame respectively through the diversion pipeline and the hydraulic pump.
5) After the clean water contacts with the waste gas, harmful gas which is easy to dissolve in water and exists in the waste gas can be removed, the clean water after washing becomes waste liquid, and the waste liquid falls into a waste liquid pool at the bottom of the washing tower for collection due to gravity.
6) The waste liquid in the waste liquid pool can enter the waste liquid mixing device to be scattered and then mixed under the driving of the hydraulic pump.
7) And the waste liquid after being scattered and mixed enters a flow stabilizing chamber from a waste liquid outlet pipe for flow stabilizing treatment.
8) The waste liquid after the steady flow treatment can enter a clarification tank for clarification treatment, and a separation grid in the clarification tank can thoroughly separate a water phase from an organic phase in the waste liquid.
9) The waste liquid after the clarification treatment forms a water phase and an organic phase, and the water phase can enter the water tank again through the clear water outlet and the hydraulic pump for recycling.
10) And the organic phase separated from the waste liquid enters a waste liquid collecting tank through a waste liquid outlet and a hydraulic pump for collection.
The invention has the following beneficial effects: the waste gas treatment cost is lower, and the waste gas treatment effect is showing, and the structure is comparatively simple.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic structural view of a waste liquid mixing apparatus according to the present invention.
Fig. 3 is a schematic structural view of a flow stabilization chamber of the present invention.
FIG. 4 is a schematic structural view of the clarifier of the present invention.
Fig. 5 is a schematic view of the structure of the separation grid of the present invention.
Fig. 6 is a schematic structural view of a first spray pipe rack of the invention.
A washing tower 1, a water tank 2, a waste liquid collecting tank 3, an air outlet 4, a material outlet 5, a first packing layer 6, a rotational flow plate defogging layer 7, a second packing layer 8, a third packing layer 9, a feeding layer 10, an air inlet 11, a waste liquid tank 12, a first spray pipe frame 13, a second spray pipe frame 14, a third spray pipe frame 15, a liquid outlet 16, a mixer body 17, a fluid inlet pipe 18, a waste liquid outlet pipe 19, a driving motor 20, a main shaft 21, a dispersion disc 22, a first lifting paddle 23, a second lifting paddle 24, a first reverse layer flow plate 25, a second reverse layer flow plate 26, a steady flow chamber 27, a clarification tank 28, a waste liquid inlet 29, a waste liquid outlet 30, a rotating shaft 31, a paddle belt 32, a rotating shaft motor 33, a water distribution area 34, a water phase outlet 35, an organic phase outlet 36, a grating plate 37, a differential bump 38, a separation gap 39, a diversion pipeline 40, a beam pipe 41, a spraying, and a spray head 43.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b): the invention is further explained according to the attached drawings 1, 2, 3, 4, 5 and 6. the invention comprises a washing tower 1 as a main body, a water tank 2 and a waste liquid collecting tank 3 are arranged beside the washing tower 1, the washing tower 1 comprises an air outlet 4 arranged at the top of the washing tower 1, a discharge port 5 is arranged at the right side of the air outlet 4, a first packing layer 6 is arranged below the air outlet 4, a rotational flow plate defogging layer 7 is arranged below the first packing layer 6, a second packing layer 8 is arranged below the rotational flow plate defogging layer 7, a third packing layer 9 is arranged below the second packing layer 8, a feeding layer 10 is arranged below the third packing layer 9, an air inlet 11 is arranged at the left side of the feeding layer 10, and a waste liquid tank 12 is arranged at the lower end of the air inlet 11, packing layer 6 in be equipped with a spray pipe support 13, No. two packing layers 8 in be equipped with No. two spray pipe support 14, No. three packing layers 9 in be equipped with No. three spray pipe support 15, waste liquid pond 12 right-hand member be equipped with leakage fluid dram 16, scrubbing tower 1 and water tank 2 within a definite time be equipped with waste liquid treatment device, leakage fluid dram 16 be connected through pipeline and hydraulic pump with waste liquid treatment device, water tank 2's water outlet end be connected through pipeline and hydraulic pump with a spray pipe support 13, No. two spray pipe support 14 and No. three spray pipe support 15 respectively, waste liquid treatment device be connected through pipeline and hydraulic pump with water tank 2's notes water end and waste liquid collecting pit 3 respectively.
Waste liquid treatment device include waste liquid mixing arrangement, waste liquid separator and clear water storage bin, waste liquid mixing arrangement include blender body 17, the bottom of blender body 17 be equipped with fluid inlet tube 18, blender body 17 inside be equipped with fluid and promote mixing arrangement, fluid promotes mixing arrangement top and is equipped with waste liquid outlet pipe 19, blender body 17 top be equipped with driving motor 20, driving motor 20's output main shaft 21 is equipped with, fluid promote mixing arrangement and install on main shaft 21, main shaft 21 lower extreme be equipped with dispersion impeller 22, fluid inlet tube 18 be connected through pipeline and hydraulic pump with leakage fluid dram 16, waste liquid outlet pipe 19 be connected through the pipeline with waste liquid separator.
The fluid lifting mixing device comprises a first lifting paddle 23, a second lifting paddle 24 is arranged above the first lifting paddle 23, the first lifting paddle 23 and the second lifting paddle 24 are respectively inserted on the main shaft 21, a first reverse laminar flow plate 25 is arranged between the first lifting paddle 23 and the second lifting paddle 24, and a second reverse laminar flow plate 26 is arranged above the second lifting paddle 24.
Waste liquid separator include steady flow chamber 27 and clarification tank 28, 27 left ends of steady flow chamber be equipped with waste liquid entry 29, 27 right-hand members of steady flow chamber be equipped with waste liquid export 30, steady flow chamber 27 in be equipped with two ribbon stirring paddles, two ribbon stirring paddles include pivot 31, pivot 31 on be equipped with the oar area 32 that is two spiral distributions, 31 upper ends of pivot be equipped with the pivot motor 33 that is used for driving the pivot, waste liquid entry 29 be connected through the pipeline with waste liquid export 30.
The clarification tank 28 left side communicate with each other with waste liquid outlet 30, waste liquid outlet 30 and clarification tank 28 within be equipped with the water distribution district 34 that is used for adjusting flow, clarification tank 28 in be equipped with the separation grid that is used for improving the clarification tank separation ability, separation grid right side be equipped with aqueous phase export 35 and organic phase export 36, organic phase export 36 and waste liquid collecting tank 3 be connected through pipeline and hydraulic pump.
The separation grid constitute by 3 parallel arrangement's grid plate 37, the left and right sides of grid plate 37 be equipped with the differential lug 38 that a plurality of equidistant was arranged respectively, be equipped with between two adjacent differential lugs 38 and be used for carrying out the separation clearance 39 that separates the waste liquid, separation clearance 39's width be 22mm, the left differential lug 38 of grid plate 37 quantity on the right side of grid plate 37 less one.
The water phase outlet 35 is connected with the water injection end of the water tank 2 through a pipeline and a hydraulic pump, and the water outlet end of the water tank 2 is respectively connected with the water injection end of the first spray pipe frame 13, the water injection end of the second spray pipe frame 14 and the water injection end of the third spray pipe frame 15 through the hydraulic pump and a diversion pipeline 40.
A spray pipe support 13, No. two spray pipe support 14 and No. three spray pipe support 15's structure the same, spray pipe support 13 including as the crossbeam pipe 41 of main part, crossbeam pipe 41 right-hand member be equipped with spray pipe orifice 42, spray pipe orifice 42 and water tank 2 be connected through hydraulic pump and reposition of redundant personnel pipeline 40, crossbeam pipe 41 lower extreme be equipped with the shower nozzle 43 of a plurality of equipartition.
The waste gas treatment method comprises the following steps:
1. the valve of the air inlet 11 is opened first, the waste gas is introduced into the air inlet 11, and the waste gas enters the washing tower 1 and moves upwards.
2. Waste gas entering the washing tower 1 sequentially passes through the third packing layer 9, the second packing layer 8 and the first packing layer 6 from bottom to top, and the spray nozzles 43 on the third spray pipe support 15, the second spray pipe support 14 and the first spray pipe support 13 sequentially wash the waste gas.
3. The exhaust gas after triple washing finally leaves the washing tower from an air outlet 4 at the top of the washing tower 1.
4. In the washing process, the water tank 2 provides clean water for cleaning for the third spraying pipe frame 15, the second spraying pipe frame 14 and the first spraying pipe frame 13 through the diversion pipeline 40 and the hydraulic pump respectively.
5. After the clean water contacts with the waste gas, harmful gas which is easy to dissolve in water and exists in the waste gas can be removed, the clean water after washing becomes waste liquid, and the waste liquid falls into a waste liquid pool 12 at the bottom of the washing tower 1 for collection due to gravity.
6. The waste liquid in the waste liquid pool 12 can enter the waste liquid mixing device to be scattered and then mixed under the driving of the hydraulic pump.
7. The waste liquid after being scattered and mixed enters the flow stabilizing chamber 27 from the waste liquid outlet pipe 19 for flow stabilizing treatment.
8. The waste liquid after the steady flow treatment enters a clarification tank 28 for clarification treatment, and a separation grid in the clarification tank 28 can thoroughly separate a water phase from an organic phase in the waste liquid.
9. The waste liquid after the clarification treatment forms a water phase and an organic phase, and the water phase can enter the water tank 2 again through the water phase outlet 35 and the hydraulic pump for recycling.
10. The organic phase separated from the waste liquid enters the waste liquid collecting tank 3 through the organic phase outlet 36 and the hydraulic pump for collection.
The above description is only an embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any changes or modifications within the scope of the present invention by those skilled in the art are covered by the present invention.
Claims (9)
1. A waste gas self-circulation bypass purification treatment system comprises a washing tower (1) as a main body, wherein a water tank (2) and a waste liquid collecting tank (3) are arranged beside the washing tower (1), and the waste gas self-circulation bypass purification treatment system is characterized in that the washing tower (1) comprises an air outlet (4) arranged at the top of the washing tower (1), a discharge port (5) is arranged on the right side of the air outlet (4), a first packing layer (6) is arranged below the air outlet (4), a rotational flow plate defogging layer (7) is arranged below the first packing layer (6), a second packing layer (8) is arranged below the rotational flow plate defogging layer (7), a third packing layer (9) is arranged below the second packing layer (8), a feed layer (10) is arranged below the third packing layer (9), an air inlet (11) is arranged on the left side of the feed layer (10), and a waste liquid tank (12) is arranged at the lower end of, packing layer (6) in be equipped with one number and spray pipe support (13), No. two packing layers (8) in be equipped with two numbers and spray pipe support (14), No. three packing layers (9) in be equipped with three numbers and spray pipe support (15), waste liquid pond (12) right-hand member be equipped with leakage fluid dram (16), scrubbing tower (1) and water tank (2) between be equipped with waste liquid treatment device, leakage fluid dram (16) be connected through pipeline and hydraulic pump with waste liquid treatment device, the outlet end of water tank (2) spray pipe support (14) and No. three respectively with one number and spray pipe support (13), No. two and spray pipe support (15) and be connected through pipeline and hydraulic pump, waste liquid treatment device be connected through pipeline and hydraulic pump with the notes water end of water tank (2) and waste liquid collecting pit (3) respectively.
2. The exhaust gas self-circulation bypass purification treatment system as claimed in claim 1, wherein the waste liquid treatment device comprises a waste liquid mixing device, a waste liquid separation device and a clean water storage bin, the waste liquid mixing device comprises a mixer body (17), a fluid inlet pipe (18) is arranged at the bottom end of the mixer body (17), a fluid lifting mixing device is arranged inside the mixer body (17), a waste liquid outlet pipe (19) is arranged above the fluid lifting mixing device, a driving motor (20) is arranged at the top end of the mixer body (17), a main shaft (21) is arranged at the output end of the driving motor (20), the fluid lifting mixing device is arranged on the main shaft (21), a dispersion disc (22) is arranged at the lower end of the main shaft (21), and the fluid inlet pipe (18) is connected with the liquid discharge port (16) through a pipeline and a hydraulic pump, the waste liquid outlet pipe (19) is connected with the waste liquid separating device through a pipeline.
3. The exhaust gas self-circulation bypass purification treatment system according to claim 2, wherein the fluid lifting and mixing device comprises a first lifting paddle (23), a second lifting paddle (24) is arranged above the first lifting paddle (23), the first lifting paddle (23) and the second lifting paddle (24) are respectively inserted on the main shaft (21), a first counter laminar flow plate (25) is arranged between the first lifting paddle (23) and the second lifting paddle (24), and a second counter laminar flow plate (26) is arranged above the second lifting paddle (24).
4. The waste gas self-circulation bypass purification treatment system of claim 2, characterized by, waste liquid separator include steady flow chamber (27) and depositing reservoir (28), steady flow chamber (27) left end be equipped with waste liquid entry (29), steady flow chamber (27) right-hand member be equipped with waste liquid export (30), steady flow chamber (27) in be equipped with two helical ribbon stirring rake, two helical ribbon stirring rake include pivot (31), pivot (31) on be equipped with and be two helical ribbon (32) that distribute, pivot (31) upper end be equipped with pivot motor (33) that are used for driving the pivot, waste liquid entry (29) be connected through the pipeline with waste liquid export (30).
5. The exhaust gas self-circulation bypass purification treatment system according to claim 4, wherein the left side of the clarification tank (28) is communicated with a waste liquid outlet (30), a water distribution area (34) for adjusting flow is arranged between the waste liquid outlet (30) and the clarification tank (28), a separation grid for improving the separation capacity of the clarification tank is arranged in the clarification tank (28), a water phase outlet (35) and an organic phase outlet (36) are arranged on the right side of the separation grid, and the organic phase outlet (36) is connected with the waste liquid collection tank (3) through a pipeline and a hydraulic pump.
6. The exhaust gas self-circulation bypass purification treatment system according to claim 5, wherein the separation grid is composed of at least 3 grid plates (37) arranged in parallel, the left side and the right side of each grid plate (37) are respectively provided with a plurality of differential protrusions (38) arranged at equal intervals, a separation gap (39) for separating waste liquid is arranged between every two adjacent differential protrusions (38), the width of each separation gap (39) is 20-25 mm, and the number of the differential protrusions (38) on the left side of each grid plate (37) is less than that on the right side of each grid plate (37).
7. The exhaust gas self-circulation bypass purification treatment system as claimed in claim 5, wherein the water phase outlet (35) is connected with the water injection end of the water tank (2) through a pipeline and a hydraulic pump, and the water outlet end of the water tank (2) is respectively connected with the water injection end of the first spray pipe frame (13), the water injection end of the second spray pipe frame (14) and the water injection end of the third spray pipe frame (15) through a hydraulic pump and a diversion pipeline (40).
8. The self-circulation bypass purification treatment system for the exhaust gas as recited in claim 7, wherein the first spray pipe rack (13), the second spray pipe rack (14) and the third spray pipe rack (15) have the same structure, the first spray pipe rack (13) comprises a beam pipe (41) as a main body, a spray pipe orifice (42) is arranged at the right end of the beam pipe (41), the spray pipe orifice (42) is connected with the water tank (2) through a hydraulic pump and a diversion pipeline (40), and a plurality of uniformly distributed spray heads (43) are arranged at the lower end of the beam pipe (41).
9. A treatment method suitable for the exhaust gas self-circulation bypass purification treatment system as claimed in claim 1, wherein the treatment method comprises the following steps:
firstly, opening a valve of an air inlet (11), introducing waste gas into the air inlet (11), and enabling the waste gas to enter the washing tower (1) and move upwards;
waste gas entering the washing tower (1) sequentially passes through a third packing layer (9), a second packing layer (8) and a first packing layer (6) from bottom to top, and the waste gas is sequentially washed by spray heads (43) on a third spray pipe frame (15), a second spray pipe frame (14) and a first spray pipe frame (13);
the waste gas after triple washing finally leaves the washing tower from an air outlet (4) at the top of the washing tower (1);
in the washing process, the water tank (2) provides clean water for cleaning for a third spraying pipe frame (15), a second spraying pipe frame (14) and a first spraying pipe frame (13) through a diversion pipeline (40) and a hydraulic pump respectively;
after the clean water is contacted with the waste gas, harmful gas which is easy to dissolve in water and exists in the waste gas can be removed, the clean water after washing becomes waste liquid, and the waste liquid falls into a waste liquid pool (12) at the bottom of the washing tower (1) for collection due to gravity;
the waste liquid in the waste liquid pool (12) can enter a waste liquid mixing device to be scattered and then mixed under the drive of a hydraulic pump;
the waste liquid after being scattered and mixed enters a steady flow chamber (27) from a waste liquid outlet pipe (19) for steady flow treatment;
the waste liquid after the steady flow treatment enters a clarification tank (28) for clarification treatment, and a separation grid in the clarification tank (28) can thoroughly separate a water phase from an organic phase in the waste liquid;
the waste liquid after the clarification treatment forms a water phase and an organic phase, and the water phase enters the water tank (2) again through a water phase outlet (35) and a hydraulic pump for recycling;
the organic phase separated from the waste liquid enters a waste liquid collecting tank (3) through an organic phase outlet (36) and a hydraulic pump for collection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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