CN114146550B - Flue gas fume exhausting system - Google Patents
Flue gas fume exhausting system Download PDFInfo
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- CN114146550B CN114146550B CN202111349086.5A CN202111349086A CN114146550B CN 114146550 B CN114146550 B CN 114146550B CN 202111349086 A CN202111349086 A CN 202111349086A CN 114146550 B CN114146550 B CN 114146550B
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- fixedly connected
- water
- coaxially
- flue gas
- water tank
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000003546 flue gas Substances 0.000 title claims abstract description 32
- 239000003517 fume Substances 0.000 title claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 102
- 239000007921 spray Substances 0.000 claims abstract description 48
- 238000004140 cleaning Methods 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000012528 membrane Substances 0.000 claims abstract description 24
- 239000000779 smoke Substances 0.000 claims abstract description 12
- 238000005507 spraying Methods 0.000 claims description 8
- 230000001939 inductive effect Effects 0.000 claims description 7
- 239000010865 sewage Substances 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 4
- 238000007790 scraping Methods 0.000 claims description 4
- 239000003513 alkali Substances 0.000 abstract description 56
- 239000007789 gas Substances 0.000 abstract description 8
- 238000007599 discharging Methods 0.000 abstract description 4
- 230000001960 triggered effect Effects 0.000 abstract description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 239000001569 carbon dioxide Substances 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 238000009991 scouring Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 3
- 229910052815 sulfur oxide Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 101000793686 Homo sapiens Azurocidin Proteins 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
Classifications
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
- B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/62—Carbon oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
- B01D2251/304—Alkali metal compounds of sodium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/604—Hydroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention relates to the technical field of smoke discharging devices, in particular to a flue gas smoke discharging system, wherein a liquid supply device is arranged to pump alkali liquid in an alkali liquid box to a guide pipe through a metering pump, and the alkali liquid enters into a water tank through the guide pipe and is sprayed out from a spray header of a spray device so as to remove harmful gas in the flue gas; the alkali liquor is discharged from the outlet end of the guide pipe and falls onto the upper water wheel so as to drive the rotating shaft to rotate through the upper water wheel, a first bevel gear on the rotating shaft drives a wind guiding fan on the vertical shaft to rotate through the cooperation of the first bevel gear and a second bevel gear, and the flue gas after the suction treatment is discharged outside the spray tower; the driving device is arranged, the alkali liquor is triggered after the water level of the alkali liquor in the water tank reaches a certain height, the alkali liquor is discharged from the drain pipe to drive the lower water wheel, the filter membrane can be cleaned by the cleaning device, the driving device can drive the cleaning device, the liquid level of the alkali liquor in the water tank can be ensured to be maintained in a certain range, the water wheel is prevented from rotating due to the fact that the water level is too high, and then the induced draft device is influenced.
Description
Technical Field
The invention relates to the technical field of smoke discharging devices, in particular to a flue gas smoke discharging system.
Background
Flue gas refers to environmental polluting gaseous substances produced when fossil fuels such as coal are burned, and these substances are usually discharged from a flue or chimney. The process of flue gas generation is mostly caused by underutilization of fuel and incomplete combustion. The components of the gas are nitrogen, carbon dioxide, oxygen, water vapor, sulfides and the like, the contents of dust, powder slag and sulfur dioxide are lower than 1%, and the gas is exhausted after being treated by a gas purifying device so as to reduce the pollution to the environment. If the cleaning operation is not normal, carbon monoxide, nitrogen oxides and other harmful gases are generated.
Most of the prior flue gas treatment devices have complex structure, high cost and unstable effect, and are easy to bring various inconveniences, so that a flue gas treatment device with simple structure and strong practicability is needed.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a flue gas smoke exhaust system, which comprises a conical spray tower with vertical axis, and is characterized in that four symmetrically arranged support plates are fixedly connected to the upper side of the inner wall of the spray tower, the support plates are fixedly connected with water tanks coaxially arranged with the spray tower, two vertically arranged and bilaterally symmetrical guide pipes are communicated with the upper end of the water tanks, one side of the spray tower is provided with a liquid supply device communicated with the inlet end of each guide pipe, the outlet end of each guide pipe is downwards penetrated into the water tank, the inner wall of the water tank is rotatably connected with two longitudinally arranged and bilaterally symmetrical rotating shafts, each rotating shaft is fixedly connected with an upper water wheel, each water wheel corresponds to the outlet end of each guide pipe one by one, the front end and the rear end of each rotating shaft extend out of the water tank and are fixedly connected with first bevel gears coaxially, air guiding devices corresponding to the first bevel gears one by one are arranged on the support plates, the lower ends of the water tanks are communicated with the spray devices, the inner walls of the spray tower are fixedly connected with filtering devices coaxially arranged below the spray devices, the upper ends of the filtering devices are matched with cleaning devices, and the lower ends of the water tanks are coaxially provided with driving devices for driving the cleaning devices.
Preferably, the air inducing device comprises a plurality of vertical shafts which are in one-to-one correspondence with the first bevel gears and are rotationally connected to the supporting plate, each vertical shaft is respectively and coaxially fixedly connected with a second bevel gear which is meshed with the first bevel gear on the corresponding side, and each vertical shaft is respectively and coaxially fixedly connected with an air inducing fan.
Preferably, the spraying device comprises a plurality of L-shaped pipes which are communicated with the bottom of the water tank and uniformly distributed around the axis of the water tank, and each L-shaped pipe is communicated with a plurality of spraying heads which are uniformly distributed along the radial direction of the water tank.
Preferably, the filtering device comprises a support frame which is coaxially and fixedly connected with the inner wall of the spray tower, and a filter membrane coaxially arranged on the spray tower is fixedly connected to the support frame.
Preferably, the cleaning device comprises a through hole coaxially formed in the filter membrane, a cleaning rod coaxially arranged with the through hole is fixedly connected to the support frame, and a plurality of scraping plates uniformly distributed around the axis of the cleaning rod and movably matched with the upper end of the filter membrane are fixedly connected to the outer edge surface of the cleaning rod.
Preferably, the driving device comprises a water outlet coaxially arranged at the bottom of the water tank, a rubber belt is connected with the water outlet at the bottom of the water tank, a baffle plate movably matched with the water outlet is fixedly connected with the free end of the rubber belt, a floating rod vertically arranged is fixedly connected with the upper end of the baffle plate, a floating ball is fixedly connected with the upper end of the floating rod and located below the upper water wheel, a drain pipe communicated with the water outlet is fixedly connected with the lower end of the water tank, a transverse shaft is rotatably connected with the inner wall of the spray tower, a lower water wheel is coaxially and fixedly connected with the transverse shaft and located below the drain pipe, a third bevel gear is coaxially and fixedly connected with the transverse shaft, and a fourth bevel gear meshed with the third bevel gear is coaxially and fixedly connected with the upper end of the cleaning rod.
Preferably, the liquid supply device comprises an alkali liquid tank positioned on the right of the spray tower, the alkali liquid tank is communicated with an inlet end of a metering pump, an outlet end of the metering pump is communicated with an inlet end of an alkali liquid pipe, two liquid outlets are arranged at the outlet end of the alkali liquid pipe, and the liquid outlets are communicated with the inlet ends of the guide pipes in a one-to-one correspondence manner.
Preferably, the upper water wheel comprises a shaft sleeve fixedly connected with the rotating shaft sleeve, a plurality of shifting plates which are annularly arrayed relative to the axis of the shaft sleeve are fixedly connected to the outer edge surface of the shaft sleeve, and the lower water wheel and the upper water wheel are identical in structure.
Preferably, a lifting pump is arranged at the bottom of the spray tower, the outlet end of the lifting pump is communicated with the inlet end of a sewage pipe, and the outlet end of the sewage pipe extends out of the spray tower and is communicated with a sewage tank.
Preferably, the bottom of the spraying tower is communicated with a smoke inlet pipe, the outlet end of the smoke inlet pipe is fixedly connected with a net cover, and the upper end of the net cover is fixedly connected with a water-proof cap.
The invention has the beneficial effects that:
the alkali liquor in the alkali liquor box can be pumped to the guide pipe through the metering pump by the liquid supply device, and the alkali liquor enters the water tank through the guide pipe and is sprayed out from the spray header of the spray device, and the alkali liquor sprayed out from the spray header reacts with nitrogen oxides, sulfur oxides, carbon dioxide and the like in the flue gas to remove harmful gases in the flue gas; the alkali liquor is discharged from the outlet end of the guide pipe and falls onto the upper water wheel so as to drive the rotating shaft to rotate through the upper water wheel, a first bevel gear on the rotating shaft drives a wind guiding fan on the vertical shaft to rotate through the cooperation of the first bevel gear and a second bevel gear, and the wind guiding fan discharges the flue gas after the suction treatment to the outside of the spray tower; the filter membrane is arranged to filter particles in the flue gas, and simultaneously the filter membrane can be prevented from being blocked by being matched with the scouring of alkali liquor and the cleaning of the cleaning device; the driving device can automatically trigger after the water level of the alkali liquor in the water tank reaches a certain height, the alkali liquor is discharged from the drain pipe to drive the lower water wheel, so that the cleaning device is triggered and the filter membrane is cleaned, the driving device can drive the cleaning device, the liquid level of the alkali liquor in the water tank can be ensured to be maintained in a certain range, the water wheel rotation is prevented from being influenced by the overhigh water level, and the induced draft device is further influenced.
Drawings
Fig. 1 is a front elevational view in full section of the present invention.
Fig. 2 is an enlarged view of area a in a front elevational view in full section of the present invention.
Fig. 3 is a perspective cross-sectional view from a first perspective of the present invention.
Fig. 4 is an enlarged view of region B in a perspective cross-sectional view from a first perspective of the present invention.
Fig. 5 is a partial cross-sectional view from a second perspective of the present invention.
Fig. 6 is an enlarged view of region C in a partial cross-sectional view from a second perspective of the present invention.
Fig. 7 is a partial cross-sectional view from a third perspective of the present invention.
Fig. 8 is an enlarged view of region D in a partial cross-sectional view from a third perspective of the present invention.
Fig. 9 is a perspective view of the present invention.
Reference numerals
1. Spray tower, 2, support plate, 3, water tank, 4, conduit, 5, shaft, 6, upper water wheel, 7, first bevel gear, 8, vertical shaft, 9, second bevel gear, 10, induced fan, 11, L-pipe, 12, spray header, 13, support frame, 14, filter membrane, 15, through hole, 16, cleaning rod, 17, scraper, 18, rubber belt, 19, baffle, 20, float rod, 21, float ball, 22, drain pipe, 23, transverse shaft, 24, lower water wheel, 25, third bevel gear, 26, fourth bevel gear, 27, alkali liquor tank, 28, metering pump, 29, alkali liquor pipe, 30, shaft sleeve, 31, deflector plate, 32, lift pump, 33, blow-down pipe, 34, sewage tank, 35, smoke inlet pipe, 36, mesh enclosure, 37, water-proof cap.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to fig. 1-9.
The provided liquid supply device can pump the alkali liquid in the alkali liquid tank 27 to the guide pipe 4 through the metering pump 28, the alkali liquid enters the water tank 3 through the guide pipe 4 and is sprayed out from the spray header 12 of the spray device, and the alkali liquid sprayed out from the spray header 12 reacts with nitrogen oxides, sulfur oxides, carbon dioxide and the like in the flue gas to remove harmful gases in the flue gas; the alkali liquor is discharged from the outlet end of the guide pipe 4 and falls onto the upper water wheel 6, so that the upper water wheel 6 drives the rotating shaft 5 to rotate, the first bevel gear 7 on the rotating shaft 5 drives the induced fan 10 on the vertical shaft 8 to rotate through the cooperation with the second bevel gear 9, and the induced fan 10 discharges the flue gas after the suction treatment to the outside of the spray tower 1; the filter membrane 14 is arranged to filter particles in the flue gas, and simultaneously the filter membrane 14 can be prevented from being blocked by the combination of scouring of alkali liquor and cleaning of a cleaning device; the driving device can automatically trigger after the water level of the alkali liquor in the water tank 3 reaches a certain height, the alkali liquor is discharged from the water discharge pipe 22 to drive the lower water wheel 24, so that the cleaning device is triggered and the filter membrane 14 is cleaned, the driving device can drive the cleaning device, the liquid level of the alkali liquor in the water tank 3 can be ensured to be maintained in a certain range, the water wheel 6 is prevented from rotating due to the too high water level, and the induced draft device is further influenced.
Specific: in use of the invention, flue gas enters the spray tower 1 through the smoke inlet pipe 35 and rises upwards, and is then discharged from the screen 36, so that a water-repellent cap 37 is provided in order to avoid alkali liquor entering the smoke inlet pipe 35 through the screen 36. When flue gas enters the spray tower 1 through the smoke inlet pipe 35, the metering pump 28 is started to enable alkali liquor in the alkali liquor tank 27 to pass through the alkali liquor pipe 29 at a stable flow rate and enter the guide pipe 4 (the alkali liquor is sodium hydroxide solution or calcium hydroxide solution with the mass percent of 4-50%), the alkali liquor is discharged through the outlet end of the guide pipe 4 and enters the water tank 3, the alkali liquor entering the water tank 3 further passes through the L-shaped pipe 11 and is sprayed out of the spray header 12, and sulfur oxides, nitrogen oxides, carbon dioxide and the like in the flue gas are treated by the alkali liquor sprayed out of the spray header 12. One end of the L-shaped pipe 11 is vertically arranged and communicated with the bottom of the water tank 3, the other end of the L-shaped pipe 11 is horizontally arranged and radially arranged along the water tank 3, namely, the L-shaped pipes 11 are uniformly distributed around the axis of the water tank 3, and the spraying is comprehensive. Further, in order to enable the flue gas to smoothly rise along the spray tower 1, treated by the spray device and discharged out of the spray tower 1, an induced draft device is provided.
The alkali liquor discharged by the air inducing device through the guide pipe 4 is used as a power source for driving, so that resources are saved. Specific: when the alkali liquor is discharged from the outlet end of the guide pipe 4, the alkali liquor sequentially impacts the shifting plate 31 on the upper water wheel 6, so that the rotating shaft 5 fixedly connected with the upper water wheel 6 through the shaft sleeve 30 rotates, the rotating shaft 5 drives the vertical shaft 8 on the supporting plate 2 to rotate through the cooperation of the first bevel gear 7 and the second bevel gear 9, the induced fan 10 rotates, and the induced fan 10 attracts the flue gas treated by the spraying device to be discharged out of the spraying tower 1.
Further, in order to process the particulate matters in the flue gas, the support frame 13 is provided with the filter membrane 14, the filter membrane 14 allows the gas to pass through but does not allow the particulate matters to pass through, and part of the particulate matters attached to the filter membrane 14 may be attached to the filter membrane 14 to influence the air permeability of the filter membrane 14, so that the cleaning device is provided with the scraper 17 in the cleaning device, which is matched with the scouring of the alkali liquor sprayed from the spray header 12, so that the particulate matters attached to the filter membrane 14 can be cleaned, and the air permeability of the filter membrane 14 is ensured. Specific: alkali liquor enters the water tank 3 through the guide pipe 4 and is accumulated in the water tank 3, along with the rise of the liquid level of the alkali liquor in the water tank 3, the floating ball 21 floats upwards along with the alkali liquor and drives the baffle 19 to be separated from the matching with the water outlet through the floating rod 20, the alkali liquor in the water tank 3 is discharged through the water outlet and the water outlet pipe 22, when the alkali liquor is discharged through the outlet end of the water outlet pipe 22, the alkali liquor sequentially impacts the shifting plate 31 on the lower water wheel 24, the upper water wheel 6 drives the transverse shaft 23 to rotate, the transverse shaft 23 drives the cleaning rod 16 positioned in the through hole 15 to rotate through the meshing effect of the third bevel gear 25 and the fourth bevel gear 26, the scraping plate 17 rotates along with the rotation of the cleaning rod 16 and is attached to the surface of the filter membrane 14, the scraping plate 17 is matched with the scouring of the alkali liquor to clean the filter membrane 14. In addition, along with the alkali liquor in the water tank 3 is discharged through the drain pipe 22 under the action of the floating ball 21, the alkali liquor level control in the water tank 3 can not be higher than the upper water wheel 6, the influence of the overhigh alkali liquor level in the water tank 3 on the action of the upper water wheel 6 is avoided, and the normal work of the induced air device is further influenced. The baffle 19 is fixedly connected with the bottom of the water tank 3 through a rubber belt 18 and can seal the water outlet.
Dust and other impurities in the flue gas and alkali liquor after reaction with the flue gas can accumulate at the bottom of the spray tower 1, and the impurities can be discharged into a sewage tank 34 through a sewage pipe 33 by starting a lifting pump 32, so that the spray tower 1 is in a conical shape with thin upper part and thick lower part, and the pressure difference is formed, thereby facilitating the discharge of the treated flue gas. The air inducing device and the driving device are both powered by the impulsive force of alkali liquor, so that resources are saved.
Claims (4)
1. The flue gas smoke exhaust system comprises conical spray towers (1) with vertically arranged axes, and is characterized in that four symmetrically arranged support plates (2) are fixedly connected to the upper sides of the inner walls of the spray towers (1), water tanks (3) which are coaxially arranged with the spray towers (1) are fixedly connected to the support plates (2), two vertically arranged and laterally symmetrical guide pipes (4) are communicated with the upper ends of the water tanks (3), liquid supply devices which are communicated with the inlet ends of the guide pipes (4) are arranged on one side of the spray towers (1), the outlet ends of the guide pipes (4) are downwards penetrated into the water tanks (3), two longitudinally arranged and laterally symmetrical rotating shafts (5) are rotatably connected to the inner walls of the water tanks (3), upper water wheels (6) are coaxially and fixedly connected to the outlet ends of the guide pipes (4) one by one, the front end and the rear end of each rotating shaft (5) are respectively and fixedly connected with a first bevel gear (7), air inducing devices corresponding to the first bevel gears (7) are arranged on the support plates (2), the lower ends of the water tanks (3) are coaxially connected with one by one, and the lower ends of the water tanks (3) are coaxially connected with a filter device, and the filter device is coaxially arranged on the upper end of the spray towers (1) and is matched with the filter device;
the air inducing device comprises a plurality of vertical shafts (8) which are in one-to-one correspondence with the first bevel gears (7) and are rotationally connected to the supporting plate (2), second bevel gears (9) which are meshed with the first bevel gears (7) on the corresponding sides of the vertical shafts (8) are coaxially and fixedly connected to the vertical shafts (8), and air inducing fans (10) are coaxially and fixedly connected to the vertical shafts (8);
the spraying device comprises a plurality of L-shaped pipes (11) which are communicated with the bottom of the water tank (3) and uniformly distributed around the axis of the water tank (3), and each L-shaped pipe (11) is communicated with a plurality of spraying heads (12) which are uniformly distributed along the radial direction of the water tank (3);
the filtering device comprises a supporting frame (13) which is coaxially and fixedly connected with the inner wall of the spray tower (1), and a filter membrane (14) which is coaxially arranged on the spray tower (1) is fixedly connected to the supporting frame (13);
the cleaning device comprises a filter membrane (14) and a through hole (15) coaxially formed in the filter membrane, a cleaning rod (16) coaxially arranged with the through hole (15) is fixedly connected to the support frame (13), and a plurality of scraping plates (17) which are uniformly distributed around the axis of the cleaning rod (16) and are movably matched with the upper end of the filter membrane (14) are fixedly connected to the outer edge surface of the cleaning rod;
the driving device comprises a water outlet coaxially arranged at the bottom of the water tank (3), a rubber belt (18) is connected with the water outlet at the bottom surface in the water tank (3), a baffle plate (19) movably matched with the water outlet is fixedly connected with the free end of the rubber belt (18), a floating rod (20) vertically arranged is fixedly connected with one side, far away from the rubber belt (18), of the upper end of the baffle plate (19), a floating ball (21) positioned below the upper water wheel (6) is fixedly connected with the upper end of the floating rod (20), a drain pipe (22) communicated with the water outlet is fixedly connected with the lower end of the water tank (3), a transverse shaft (23) is rotatably connected to the inner wall of the spray tower (1), a lower water wheel (24) positioned below the drain pipe (22) is coaxially and fixedly connected with the transverse shaft (23), a third bevel gear (25) is coaxially and fixedly connected with the upper end of the cleaning rod (16), and a fourth bevel gear (26) meshed with the third bevel gear (25);
the upper water wheel (6) comprises a shaft sleeve (30) fixedly connected with the rotating shaft (5), a plurality of shifting plates (31) which are annularly arrayed relative to the axis of the shaft sleeve (30) are fixedly connected to the outer edge surface of the shaft sleeve, and the lower water wheel (24) and the upper water wheel (6) are identical in structure.
2. A flue gas fume evacuation system according to claim 1, wherein said liquid supply means comprises a lye tank (27) located on the right of the spray tower (1), the lye tank (27) being connected to the inlet end of a metering pump (28), the outlet end of the metering pump (28) being connected to the inlet end of a lye tube (29), two liquid outlets being arranged at the outlet end of the lye tube (29), each of said liquid outlets being in one-to-one correspondence with the inlet end of each of said pipes (4).
3. A flue gas fume exhaust system according to claim 1, wherein the bottom of the spray tower (1) is provided with a lift pump (32), the outlet end of the lift pump (32) is communicated with the inlet end of a blow-down pipe (33), and the outlet end of the blow-down pipe (33) extends outwards from the spray tower (1) and is communicated with a sewage tank (34).
4. The flue gas fume exhaust system according to claim 1, wherein the bottom of the spray tower (1) is communicated with a fume inlet pipe (35), the outlet end of the fume inlet pipe (35) is fixedly connected with a net cover (36), and the upper end of the net cover (36) is fixedly connected with a water-proof cap (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111349086.5A CN114146550B (en) | 2021-11-15 | 2021-11-15 | Flue gas fume exhausting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111349086.5A CN114146550B (en) | 2021-11-15 | 2021-11-15 | Flue gas fume exhausting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114146550A CN114146550A (en) | 2022-03-08 |
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| CN115350541B (en) * | 2022-10-21 | 2023-01-17 | 张家港市天源机械制造有限公司 | Waste gas purification device for biomass gasification furnace |
| CN118558056A (en) * | 2024-08-01 | 2024-08-30 | 天津泰达滨海清洁能源集团有限公司 | Natural gas transmission and distribution filtering device |
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