CN112843998B - Water-cooling circulating device for hazardous waste incineration flue gas - Google Patents
Water-cooling circulating device for hazardous waste incineration flue gas Download PDFInfo
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- CN112843998B CN112843998B CN202011577237.8A CN202011577237A CN112843998B CN 112843998 B CN112843998 B CN 112843998B CN 202011577237 A CN202011577237 A CN 202011577237A CN 112843998 B CN112843998 B CN 112843998B
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 239000003546 flue gas Substances 0.000 title claims abstract description 86
- 238000001816 cooling Methods 0.000 title claims abstract description 44
- 239000002920 hazardous waste Substances 0.000 title claims description 15
- 238000004056 waste incineration Methods 0.000 title claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 258
- 238000009826 distribution Methods 0.000 claims abstract description 46
- 238000001704 evaporation Methods 0.000 claims abstract description 42
- 230000008020 evaporation Effects 0.000 claims abstract description 42
- 238000003860 storage Methods 0.000 claims description 38
- 239000000779 smoke Substances 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 24
- 238000005192 partition Methods 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 14
- 238000010030 laminating Methods 0.000 claims description 4
- 230000003020 moisturizing effect Effects 0.000 claims 5
- 239000003513 alkali Substances 0.000 description 41
- 239000010410 layer Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 15
- 239000011152 fibreglass Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 10
- 239000000498 cooling water Substances 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 8
- 235000019504 cigarettes Nutrition 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 230000001502 supplementing effect Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 238000006386 neutralization reaction Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000013589 supplement Substances 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
- 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
- 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
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
-
- 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
- B01D53/75—Multi-step processes
-
- 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
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/003—Arrangements of devices for treating smoke or fumes for supplying chemicals to fumes, e.g. using injection devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/006—Layout of treatment plant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2219/00—Treatment devices
- F23J2219/40—Sorption with wet devices, e.g. scrubbers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Treating Waste Gases (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention discloses a water-cooling circulating device, which comprises a cooling device and a circulating device, the first deacidification tower, the second deacidification tower, first deacidification tower side is through flue gas pipeline and second deacidification tower side fastening connection, first deacidification tower and second deacidification tower pass through the water pipe and are connected with circulating device, circulating device and heat sink lead to water piping connection, heat sink and first deacidification tower fastening connection, heat sink includes water tank and distribution ring, the distribution ring is equipped with the distribution annular, distribution annular bottom is equipped with a plurality of annular delivery ports, first deacidification tower includes the body of the tower, the body of the tower top is equipped with the inlet opening, the annular delivery port is towards first deacidification tower internal face, upwards extend at the bottom of the circulation pond and link firmly two backup pads, downwardly extending links firmly two baffles on the circulation pond, backup pad and baffle interval set up, the backup pad upper end links firmly with one-level evaporation platform and second grade evaporation platform side respectively.
Description
Technical Field
The invention relates to the technical field of flue gas water-cooling circulation, in particular to a hazardous waste incineration flue gas water-cooling circulation device.
Background
The hazardous waste incineration system is provided with a deacidification tower behind a dust remover, the material of the deacidification tower is generally glass fiber reinforced plastic, the temperature resistance of the domestic glass fiber reinforced plastic in normal operation is not more than 150 ℃, the smoke at the outlet of the dust remover is generally between 160 ℃ and 180 ℃, if the hazardous waste incineration system directly enters the glass fiber reinforced plastic deacidification tower, the temperature of the hazardous waste incineration system exceeds the tolerance temperature of the glass fiber reinforced plastic, the deacidification tower is softened and deformed, and even the safety accident of collapse of the deacidification tower can be caused. Therefore, the flue gas needs to be cooled before entering the glass fiber reinforced plastic deacidification tower, a water spraying cooling measure is usually adopted, the flue gas seriously corrodes equipment during the interval of water spraying cooling at the low-temperature corrosion temperature of the flue gas, and the furnace needs to be shut down and replaced after being used for several months, so that the continuous operation of the system is seriously influenced, and the operation cost and the maintenance cost are increased.
The hazardous waste incineration process is provided with a wet deacidification system, and the acid substances in the flue gas are removed from the flue gas by utilizing the chemical reaction of the circulating alkali liquor and the acid substances in the flue gas. The deacidification tower is usually arranged at the outlet of the dust remover, the temperature of the flue gas is between 160 and 180 ℃, the temperature of the flue gas at the outlet of the deacidification tower is about 70 ℃, the circulating alkali liquor can continuously absorb the heat of the flue gas in the circulating process, so that the temperature of the circulating water is increased, the circulating water needs to be cooled, and otherwise, the cooling effect and the deacidification effect of the deacidification tower can be influenced by higher temperature. Generally, a tubular heat exchanger is adopted to cool the circulating alkali liquor, cooling water is introduced into the tubular heat exchanger to cool the circulating alkali liquor, and the cooled low-temperature circulating alkali liquor enters an acid removal tower. There is a large amount of salinity in the circulation alkali lye, can produce comparatively serious salt corrosion when the heat transfer, can take place to become salt simultaneously and block up the condition, and the operation need be shut down the stove and wash for a period of time, can't guarantee the continuous operation of equipment, and the life of heat exchanger is very short in addition, just needs to be changed several months.
Disclosure of Invention
The invention aims to provide a water-cooling circulating device for hazardous waste incineration flue gas, which aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
the utility model provides a useless flue gas water-cooling circulating device that burns of danger, includes heat sink, circulating device, first deacidification tower, second deacidification tower, water pipe and flue gas pipeline, first deacidification tower side passes through flue gas pipeline and second deacidification tower side fastening connection, first deacidification tower and second deacidification tower pass through the water pipe and are connected with circulating device, circulating device and heat sink lead to pipe connection, heat sink and first deacidification tower fastening connection, heat sink includes water tank and distribution ring, distribution ring and first deacidification tower fastening connection, water tank and first deacidification tower fastening connection, the distribution ring is equipped with the distribution annular, and distribution annular bottom is equipped with a plurality of annular delivery ports, and first deacidification tower includes body and tower top cap, and tower top cap top is equipped with the inlet opening, and the annular delivery port is towards the body internal face.
According to the invention, the top of the first deacidification tower is fixedly connected with the distribution ring, water in the distribution ring groove enters the inner wall of the tower body from the top of the first deacidification tower along the wall surface, a uniform water film layer is formed inside the tower body, the water film layer protects the glass fiber reinforced plastic material of the tower body, and the water film is continuously evaporated in a meeting in the downward flowing process, so that the temperature of the inner wall of the deacidification tower can be ensured not to exceed 100 ℃, and the inner wall is not easy to damage. First deacidification tower passes through flue gas pipeline and second deacidification tower to be connected, and the flue gas after will tentatively deacidifying is sent to the second deacidification tower in further deacidification, and first deacidification tower and second deacidification tower are connected through water pipe and circulating device respectively, and the alkali lye after will neutralizing is collected and is carried and carry cooling cycle in the circulating device and utilize, reduces the utilization of water resource, reduce cost, and the alkali lye after the cooling leads to pipe carries alkali lye to supply in the water tank.
Install heat sink at first deacidification top of the tower portion, make the aqueous alkali in the water tank flow through the dead weight, the alkali lye flows to the top of the tower cover water inlet from water tank bottom delivery port, then flow into in the distribution ring groove, the distribution ring is installed at first deacidification top of the tower portion, make the aqueous alkali in the distribution ring groove flow through the annular delivery port that is just facing to the body of the tower, and flow downwards along the body of the tower, form the even water film layer of one deck at the body of the tower inner wall, the in-process that the alkali lye flows downwards constantly evaporates, absorb the heat in the flue gas, carry out neutralization reaction with the flue gas simultaneously, make the flue gas temperature reduce, keep first deacidification tower inner wall temperature can not exceed 100 ℃. The normal operation temperature resistance of the domestic glass fiber reinforced plastics is not more than 150 ℃, the smoke at the outlet of the dust remover is usually between 160 ℃ and 180 ℃, if the smoke directly enters the glass fiber reinforced plastics deacidification tower, the smoke exceeds the tolerance temperature of the glass fiber reinforced plastics, the deacidification tower is softened and deformed, and the water film layer ensures that the glass fiber reinforced plastics tower body cannot be damaged due to overhigh temperature. The water tank is designed to have a certain height, the liquid level is controlled by the liquid level controller, and the water tank also has the function of isolating the flue gas of the deacidification tower from the outside and has a sealing effect.
Further, the water tank includes water supply valve, aqua storage tank and liquid level controller, and liquid level controller is in the aqua storage tank, and liquid level controller and water supply valve link to each other, and inlet opening and aqua storage tank bottom outlet water hole water supply valve link firmly in the aqua storage tank outside, water supply valve is close to aqua storage tank one end and aqua storage tank top inlet fastening connection, and water storage tank one end and water pipe fastening connection are kept away from to the water supply valve.
The liquid level controller is arranged in the water storage tank, the height of alkali liquor in the water storage tank is sensed through the floating ball, a certain liquid level height is kept in the water storage tank, the liquid level controller is further connected with the water supplementing valve, when the liquid level in the water storage tank descends due to use, the water supplementing valve is opened to supplement the alkali liquor, the water supplementing valve is externally connected to the surface of the water storage tank, the water supplementing valve is conveniently connected with a water pipe, the water inlet hole and the water outlet hole at the bottom end of the water storage tank are connected together, so that water can flow into the distribution ring groove when flowing out of the water storage tank, when heat is rapidly dissipated, sufficient flow is guaranteed to form a water film, and the heat dissipation effect is better.
Further, the top end of the distribution ring is provided with a plurality of annular groove fixing holes, the top end of the tower top cover is provided with a plurality of tower top fixing holes, the tower top cover is tightly connected with the distribution ring, the cooling device further comprises a fixing piece, the fixing piece penetrates through the tower top fixing holes and the annular groove fixing holes, and the outer circular surface of the fixing piece is attached to the annular groove fixing holes and the hole surface of the tower top fixing holes.
Be equipped with a plurality of fixed orificess on tower top cap and distribution ring, make tower top cap and distribution ring fixed through the mounting, prevent that the flue gas from revealing, the distribution ring is long-term to work under the condition of high temperature, high pressure and strong corruption, and easy to detach maintenance and change when needing.
Further, the circulating device comprises a circulating pool, a partition plate, a first-stage evaporation platform, a second-stage evaporation platform, a sealing cover, an exhaust fan and a support plate, the bottom surface of the circulating pool is sequentially provided with a water inlet area, a first-stage water falling area, a second-stage water falling area and a water outlet area, the bottom surface of the circulating pool extends upwards to fixedly connect two support plates, the upper end of the circulating pool extends downwards to fixedly connect two partition plates, the support plates and the partition plates are arranged at intervals, the upper end of each support plate is fixedly connected with the side surfaces of the first-stage evaporation platform and the second-stage evaporation platform respectively, the bottom end of the sealing cover is fixedly connected with the upper surface of the circulating pool, and the air inlet of the exhaust fan is fixedly connected with the sealing cover.
A water inlet area, a primary water falling area, a secondary water falling area and a water outlet area are sequentially arranged in a circulating pool, so that circulating water directly enters the water inlet area and is blocked by a supporting plate when flowing in from a water pipe, the liquid level of alkali liquor rises along the supporting plate until the alkali liquor overflows the supporting plate, the side surface of a primary evaporation platform is fixedly connected with the upper end of the supporting plate, the primary evaporation platform is of a jacket type and is internally communicated with cooling water, the circulating water forms a water film on the surface of the primary evaporation platform and is cooled by the cooling water, the contact area with air is increased, the evaporation of the circulating water is facilitated, the heat exchange with the cooling water is also increased, the rapid circulating use of the circulating water is facilitated, the circulating water flows into the primary water falling area after falling from the primary evaporation platform, a partition plate is arranged above the primary water falling area, the circulating water flow direction in the primary water falling area is changed through the interval arrangement of the partition plate and the supporting plate, circulating water turns over from bottom to top to the second-stage evaporation platform from the bottom along the partition plate and the supporting plate, part of the circulating water evaporates on the surface of the platform, the second-stage evaporation platform is also designed in a jacket type mode, the circulating water flowing through the second-stage evaporation platform is cooled secondarily by the cooling water passing through the second-stage evaporation platform, the circulating water flowing through the second-stage evaporation platform flows into the second-stage water falling area along the partition plate, the circulating water finally flows to the water outlet area, salt products generated by neutralization reaction are gradually separated out in the water outlet area, and cleaning is facilitated. The evaporation produces steam and is collected by the sealed cowling of top to send to VOC processing facility through the exhaust fan and handle, in addition, the baffle plays the collision impact effect that reduces rivers to the circulation pond equally, make the water in the circulation pond can not spatter in disorder everywhere, carry out cyclic utilization to the circulating water through the circulation pond, the use of the water resource of reduction, use cost has been reduced, cool off alkali lye through the circulation pond, the condition of pipeline emergence salt deposition jam has been avoided, it is more superior to make the radiating effect through two-stage evaporation platform.
Further, first deacidification top of the tower portion is equipped with the flue gas and advances the pipe, be equipped with into mouth of pipe in the middle of the tower top cap, the flue gas advances tub outer disc and tower top cap and advances a tub mouthful fixed connection, the body of the tower lower extreme is equipped with the delivery port, second deacidification tower bottom is equipped with the delivery port, in the delivery port leads to pipe stretches into the intake zone, delivery port and the outer disc fastening connection of water pipe, body of the tower side is equipped with out the cigarette hole, in the flue gas pipeline advances the cigarette end and inserts out the cigarette hole, flue gas pipeline surface and the laminating of play cigarette hole, second deacidification tower side is equipped with into the cigarette hole, flue gas pipeline goes out the cigarette end and inserts into in the cigarette hole.
High temperature flue gas advances the pipe from the gas wash tower along the flue gas and flows in first deacidification tower, advance the mouth of a pipe through flue gas pipeline and top of the tower and link firmly, good leakproofness has, make the flue gas be difficult for revealing, all be equipped with the delivery port at first deacidification tower and second deacidification tower lower extreme, with water pipe sealing connection, circulation alkali lye in the tower assembles in the bottom under the action of gravity, then flow along the delivery port, carry the district of intaking in circulation pond with alkali lye through the water pipe, conveniently cool down and reuse, carry the flue gas between first deacidification tower and second deacidification tower, it is better to make sealed effect through the flue gas pipeline, set up the biggest contact stroke of outlet flue gas mouth guaranteed water film and flue gas in the body of the tower bottom, the radiating effect is better.
As optimization, a water pump is arranged on a water pipe between the circulating pool and the water tank, so that circulating alkali liquor in a water outlet area is not highly influenced and is directly conveyed into the water tank, the flow is adjusted through a water supplementing valve, and all devices are not influenced by distance by using water pipe connection.
And as optimization, a temperature controller is arranged on the tower body, the temperature in the tower is monitored in real time, the temperature reflects the thickness of the water film layer, and if the temperature is too high, the opening angle of the water replenishing valve is increased, so that the water yield of the water storage tank is increased.
As optimization, the water film layer is attached to the inner wall of the tower body, the flue gas is in a low-temperature corrosion stage, the water film layer isolates the contact between the flue gas and the tower body, the corrosion to the tower body is reduced, and the service life is prolonged.
Compared with the prior art, the invention has the following beneficial effects: according to the tower body, the water film protective layer is formed on the inner wall of the tower body, so that the incineration flue gas is cooled, and the contact between the flue gas and the tower body is isolated, so that the deacidification tower cannot be softened and deformed due to overhigh flue gas temperature, the tower body is prevented from being corroded by the flue gas, and the service life is prolonged; the circulation tank and the two-stage evaporation platform are used for cooling and circulating the alkali liquor, so that the circulation structure is not blocked by salt deposition, and the heat exchange structure can run stably for a long time.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall assembly structure of the present invention;
FIG. 2 is a schematic view of the cooling device assembly of the present invention;
FIG. 3 is a schematic view of the fixture of the present invention;
FIG. 4 is a schematic view of the water replenishment control mechanism of the present invention;
FIG. 5 is an assembly view of the circulation tank of the present invention;
FIG. 6 is a partial cross-sectional view of the circulation tank of the present invention;
FIG. 7 is a top view of a first acid removal column of the present invention;
FIG. 8 is a cross-sectional view of the distribution ring of the present invention;
in the figure: 1-a cooling device, 11-a water tank, 111-a water replenishing valve, 112-a water storage tank, 113-a liquid level controller, 12-a distribution ring, 121-a distribution ring groove, 1211-a ring groove water outlet, 122-a ring groove fixing hole, 13-a water film layer, 14-a fixing piece, 2-a circulating device, 21-a circulating pool, 211-a first-level water falling area, 212-a second-level water falling area, 213-a water inlet area, 214-a water outlet area, 22-a clapboard, 231-a first-level evaporation platform, 232-a second-level evaporation platform, 24-a sealing cover, 25-an exhaust fan, 26-a supporting plate, 3-a first deacidification tower, 31-a temperature control instrument, 32-a flue gas inlet pipe, 33-a tower body, 331-a water outlet, 332-a flue gas outlet, 34-a tower top cover, 341-water inlet, 342-tower top fixed hole, 4-second deacidification tower, 41-smoke inlet, 5-water pump, 6-water pipe and 7-smoke pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in figures 1-3, a water-cooling circulation device for hazardous waste incineration flue gas comprises a cooling device 1, a circulation device 2, a first deacidification tower 3, a second deacidification tower 4, a water pipe 6 and a flue gas pipeline 7, wherein the side surface of the first deacidification tower 3 is tightly connected with the side surface of the second deacidification tower 4 through the flue gas pipeline 7, the first deacidification tower 3 and the second deacidification tower 4 are connected with the circulation device 2 through the water pipe 6, the circulation device 2 is connected with the cooling device 1 through the water pipe 6, the cooling device 1 is tightly connected with the first deacidification tower 3, the cooling device 1 comprises a water tank 11 and a distribution ring 12, the distribution ring 12 is tightly connected with the first deacidification tower 3, the water tank 11 is tightly connected with the first deacidification tower 3, the distribution ring 12 is provided with a distribution ring groove 121, the bottom end of the distribution ring groove 121 is provided with a plurality of ring groove water outlets 1211, the first deacidification tower 3 comprises a tower body 33 and a tower top cover 34, the top end of the tower top cover 34 is provided with a water inlet, the annular groove water outlet 1211 faces the inner wall surface of the tower body 33.
According to the invention, the top of the first deacidification tower 3 is fixedly connected with the distribution ring 12, water in the distribution ring groove 121 enters the inner wall of the tower body 33 from the top of the first deacidification tower 3 along the wall surface, the uniform water film layer 13 is formed in the tower body 33, the water film layer 13 protects the glass fiber reinforced plastic material of the tower body 33, and the water film is continuously evaporated in a meeting in the process of flowing downwards, so that the temperature of the inner wall of the deacidification tower can be ensured not to exceed 100 ℃, and the inner wall is not easy to damage. First deacidification tower 3 passes through flue gas pipeline 7 and second deacidification tower 4 and connects, the flue gas after will tentatively deacidifying is sent to in the second deacidification tower 4 further deacidification, first deacidification tower 3 and second deacidification tower 4 are connected through water pipe 6 and circulating device 2 respectively, alkali lye after will neutralizing is collected and is carried and carries and carry cooling cycle in circulating device 2 and utilize, reduce the utilization of water resource, and therefore the cost is reduced, alkali lye after the cooling is supplemented in carrying water tank 11 with alkali lye through water pipe 6.
The cooling device 1 is arranged at the top of the first deacidification tower 3, so that the alkali liquor in the water tank 11 can flow out through self weight, the alkali liquor flows from a water outlet at the bottom of the water tank 44 to a water inlet of the tower top cover 34 and then flows into the distribution ring groove 121, the distribution ring 12 is arranged at the top of the first deacidification tower 3, so that the alkali liquor in the distribution ring groove 121 flows out through a ring groove water outlet 1211 facing the tower body 33 and flows downwards along the tower body 33, an even water film layer 13 is formed on the inner wall of the tower body 33, the alkali liquor is continuously evaporated in the downward flowing process to absorb heat in the flue gas and simultaneously performs a neutralization reaction with the flue gas, so that the temperature of the flue gas is reduced, and the temperature of the inner wall of the first deacidification tower 3 is kept not to exceed 100 ℃. The normal operation temperature resistance of the domestic glass fiber reinforced plastics is not more than 150 ℃, the smoke gas at the outlet of the dust remover is usually between 160 ℃ and 180 ℃, if the smoke gas directly enters the glass fiber reinforced plastics deacidification tower, the smoke gas exceeds the tolerance temperature of the glass fiber reinforced plastics, the deacidification tower is softened and deformed, and the water film layer 13 ensures that the glass fiber reinforced plastics tower body cannot be damaged due to overhigh temperature. The water tank 11 is designed to have a certain height, the liquid level is controlled by the liquid level controller 113, and the water tank 11 also has the function of isolating the flue gas of the deacidification tower from the outside and has the sealing effect.
As shown in fig. 1 and 2, the water tank 11 includes a water replenishing valve 111, a water storage tank 112 and a liquid level controller 113, the liquid level controller 113 is in the water storage tank 112, the liquid level controller 113 is connected with the water replenishing valve 111, a water inlet 341 on the tower top cover 34 is connected with a water outlet at the bottom end of the water storage tank 112, the water replenishing valve 111 is fixedly connected to the outer side of the water storage tank 112, the water replenishing valve 111 is close to one end of the water storage tank 112 and is tightly connected with a water inlet at the top of the water storage tank 112, and the water replenishing valve 111 is far away from one end of the water storage tank 112 and is tightly connected with the water pipe 6.
The liquid level controller 113 is arranged in the water storage tank 112, the height of alkali liquor in the water storage tank 112 is sensed through the floating ball, so that a certain liquid level height is kept in the water storage tank 112, the liquid level controller 113 is further connected with the water replenishing valve 111, when the liquid level in the water storage tank 112 drops due to use, the water replenishing valve 111 is opened to replenish the alkali liquor, the water replenishing valve 111 is externally connected to the surface of the water storage tank 112 and is convenient to be connected with the water pipe 6, the water inlet 341 is connected with a water outlet hole at the bottom end of the water storage tank 112, so that water flows into the distribution ring groove 121 as soon as possible when flowing out from the water storage tank 112, when rapid heat dissipation is needed, sufficient flow is guaranteed to form a water film, and the heat dissipation effect is better.
As shown in fig. 7 and 8, a plurality of ring groove fixing holes 122 are formed in the top end of the distribution ring 12, a plurality of tower top fixing holes 342 are formed in the top end of the tower top cover 34, the tower top cover 34 and the distribution ring 12 are fastened and connected, the cooling device 1 further includes a fixing member 14, the fixing member 14 penetrates through the tower top fixing holes 342 and the ring groove fixing holes 122, and the outer circular surface of the fixing member 14 is attached to the ring groove fixing holes 122 and the hole surfaces of the tower top fixing holes 342.
The tower top cover 34 and the distribution ring 12 are provided with a plurality of fixing holes, the tower top cover 34 and the distribution ring 12 are fixed through the fixing pieces 14, smoke gas leakage is prevented, the distribution ring 12 works under the conditions of high temperature, high pressure and strong corrosion for a long time, is easy to damage, and is convenient to detach, maintain and replace when needed.
As shown in fig. 5 and 6, the circulation device 2 includes a circulation tank 21, a partition plate 22, a first-stage evaporation platform 231, a second-stage evaporation platform 232, a sealing cover 24, an exhaust fan 25 and a support plate 26, a water inlet area 213 is sequentially arranged on the bottom surface of the circulation tank 21, a first-stage water falling area 211, a second-stage water falling area 212 and a water outlet area 214 are sequentially arranged on the bottom surface of the circulation tank 21, two support plates 26 are fixedly connected to the bottom surface of the circulation tank 21 in an upward extending manner, two partition plates 22 are fixedly connected to the upper end of the circulation tank in a downward extending manner, the support plates 26 and the partition plates 22 are arranged at intervals, the support plates 26 are fixedly connected to the side surfaces of the first-stage evaporation platform 213 and the second-stage evaporation platform 232 respectively far away from the upper end, the bottom end of the sealing cover 24 is fixedly connected to the upper surface of the circulation tank 21, and an air inlet of the exhaust fan 25 is fixedly connected to the sealing cover.
A water inlet area 213, a primary water falling area 211, a secondary water falling area 212 and a water outlet area 214 are sequentially arranged in the circulating pool, so that when circulating water flows in from a water pipe 6, the circulating water directly enters the water inlet area 213 and is blocked by a supporting plate 26, the liquid level of alkali liquor rises along the supporting plate along with the increase of alkali liquor in the water inlet area 213 until the alkali liquor overflows the supporting plate 213, the side surface of a primary evaporation platform 231 is fixedly connected with the upper end of the supporting plate 213, the primary evaporation platform 231 is of a jacket type and is internally communicated with cooling water, the circulating water forms a water film on the surface of the primary evaporation platform 231 and is cooled by the cooling water, the contact area with air is increased, the evaporation of the circulating water is facilitated, the heat exchange with the cooling water is increased, the rapid circulation use of the circulating water is facilitated, the circulating water flows into the primary water falling area 211 after falling from the primary evaporation platform 231, a partition plate is arranged above the primary water falling area 211, and the partition plate 22 and the supporting plate 26 are arranged at intervals, the flow direction of circulating water in the first-stage water falling area 211 is changed, the circulating water turns over from bottom to top to the second-stage evaporation platform 232 along the partition plate 22 and the supporting plate 26, part of the circulating water is evaporated on the surface of the platform, the second-stage evaporation platform 232 is also designed in a jacket type manner, the circulating water flowing through the second-stage evaporation platform 232 carries out secondary cooling on the circulating water flowing through the second-stage evaporation platform, the circulating water flowing through the second-stage evaporation platform 232 flows into the second-stage water falling area 212 along the partition plate, the circulating water finally flows to the water outlet area 214, and salt products generated by neutralization reaction are gradually separated out in the water outlet area 214, so that the cleaning is facilitated. The evaporation produces steam and is collected by the sealed cowling 24 of top to send to VOC processing facility through exhaust fan 25 and handle, in addition, baffle 22 plays the collision impact effect that reduces rivers to circulation tank 21 equally, make the water in the circulation tank 21 can not spatter in disorder everywhere, carry out cyclic utilization to the circulating water through circulation tank 21, the use of the water resource of reduction, use cost has been reduced, cool off alkali lye through the circulation tank, the condition of salt clogging has been avoided taking place for the pipeline, it is more superior to make the radiating effect through two-stage evaporation platform.
As shown in fig. 1 and 7, the top of the first deacidification tower 3 is provided with a flue gas inlet pipe 32, the middle of the tower top cover 34 is provided with a pipe inlet, the flue gas inlet pipe 32 is fixedly connected with the pipe inlet of the tower top cover 34 on the outer circular surface, the lower end of the tower body 33 is provided with a water outlet 331, the bottom of the second deacidification tower 4 is also provided with a water outlet 331, the water outlet 331 extends into the water inlet area 213 through a water pipe, the water outlet 331 is fixedly connected with the outer circular surface of the water pipe 6, the side surface of the tower body 23 is provided with a smoke outlet 332, the smoke inlet end of the flue gas pipeline 7 is inserted into the smoke outlet 332, the outer surface of the flue gas pipeline 7 is attached to the smoke outlet 332, the side surface of the second deacidification tower 4 is provided with a smoke inlet 41, and the smoke outlet end of the flue gas pipeline 7 is inserted into the smoke inlet 41.
High temperature flue gas advances pipe 32 along the flue gas from the gas wash tower and flows into first deacidification tower 3, advance pipe 32 and tower top cap through the flue gas and advance the mouth of a pipe and link firmly, good leakproofness has, make the flue gas difficult for revealing, all be equipped with delivery port 331 at first deacidification tower 3 and 4 lower extremes of second deacidification tower, with 6 sealing connection of water pipe, circulation alkali lye in the tower assembles in the bottom under the action of gravity, then flow along delivery port 331, carry the inflow region of circulation pond 21 with alkali lye through water pipe 6, conveniently cool down and reuse, 4 transport flue gas between first deacidification tower 3 and second deacidification tower, it is better to make sealed effect through flue gas pipeline 7, set up smoke outlet 332 in the bottom of body of the tower 33 and guaranteed the biggest contact stroke of water film layer 13 and flue gas, the radiating effect is better.
As shown in figure 1, a water pump 5 is arranged on the water pipe between the circulating pool 21 and the water tank 11, so that the circulating alkali liquor in the water outlet area 214 is directly conveyed into the water tank 11 without being influenced by height, the flow is adjusted by a water supplementing valve 111, and the devices are connected by using the water pipe 6 without being influenced by distance.
The temperature controller 31 is arranged on the tower body 33, the temperature in the tower is monitored in real time, the temperature reflects the thickness of the water film layer 13, and if the temperature is too high, the opening angle of the water replenishing valve 111 is increased, so that the water yield of the water storage tank 112 is increased.
The laminating of rete 13 and body of tower 33 inner wall, the flue gas is in the low temperature corrosion stage, and rete 13 has completely cut off the contact of flue gas and body of tower 33, the corruption that reduces to body of tower 33, and life increases.
The working principle of the invention is as follows: a uniform water film layer 13 is formed on the inner wall of the tower body 33 through the annular groove water outlet 1211 which is opposite to the inner wall of the tower body 33, so that the contact between the flue gas and the inner wall of the tower body 33 is isolated, the tower body 33 is prevented from being corroded by the flue gas, the water film layer 13 absorbs heat through evaporation, the temperature of the flue gas is reduced, and the temperature in the tower is reduced; circulation tank 2 cools down to alkali lye and prevents that the high temperature from influencing 3 deacidification of first deacidification tower and cooling effect, and dual jacketed formula cooling platform cools off alkali lye, prevents that the pipeline from becoming salt and blockking up, the alkali lye recycling of being convenient for.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a useless incineration flue gas water-cooling circulating device of danger which characterized in that: the water-cooling circulating device comprises a cooling device (1), a circulating device (2), a first deacidification tower (3), a second deacidification tower (4), a water pipe (6) and a flue gas pipeline (7), wherein the side surface of the first deacidification tower (3) is connected with the side surface of the second deacidification tower (4) through the flue gas pipeline (7), the first deacidification tower (3) and the second deacidification tower (4) are connected with the circulating device (2) through the water pipe (6), the circulating device (2) and the cooling device (1) are connected through the water pipe (6), the cooling device (1) is connected with the first deacidification tower (3) in a fastening way, the cooling device (1) comprises a water tank (11) and a distribution ring (12), the distribution ring (12) is connected with the first deacidification tower (3) in a fastening way, the water tank (11) is connected with the first deacidification tower (3) in a fastening way, the distribution ring (12) is provided with a distribution ring groove (121), the bottom end of the distribution ring groove (121) is provided with a plurality of ring groove water outlets (1211), the first deacidification tower (3) comprises a tower body (33) and a tower top cover (34), the top end of the tower top cover (34) is provided with a water inlet hole (341), and the ring groove water outlets (1211) face the inner wall surface of the tower body (33);
the circulating device (2) comprises a circulating pool (21), a partition plate (22), a primary evaporation platform (231), a secondary evaporation platform (232), a sealing cover (24), an exhaust fan (25) and a supporting plate (26), the bottom surface of the circulating pool (21) is sequentially provided with a water inlet area (213), a first-stage water falling area (211), a second-stage water falling area (212) and a water outlet area (214), the bottom of the circulating tank (21) extends upwards to be fixedly connected with two supporting plates (26), the upper end of the circulating tank (21) extends downwards to be fixedly connected with two clapboards (22), the supporting plate (26) and the partition plate (22) are arranged at intervals, the upper end of the supporting plate (26) is fixedly connected with the side surfaces of the primary evaporation platform (231) and the secondary evaporation platform (232) respectively, the bottom end of the sealing cover (24) is fixedly connected with the upper surface of the circulating pool (21), and the air inlet of the exhaust fan (25) is fixedly connected with the sealing cover (24).
2. The hazardous waste incineration flue gas water-cooling circulation device of claim 1, characterized in that: water tank (11) are including moisturizing valve (111), aqua storage tank (112) and liquid level controller (113), liquid level controller (113) is in aqua storage tank (112), and liquid level controller (113) and moisturizing valve (111) link to each other, inlet opening (341) and aqua storage tank (112) bottom apopore link to each other, moisturizing valve (111) links firmly in the aqua storage tank (112) outside, moisturizing valve (111) are close to aqua storage tank (112) one end and aqua storage tank (112) top inlet fastening and connect, aqua storage tank (112) one end and water pipe (6) fastening connection are kept away from in moisturizing valve (111).
3. The hazardous waste incineration flue gas water-cooling circulation device of claim 1, characterized in that: the distribution ring (12) top is equipped with a plurality of annular fixed orificess (122), tower top lid (34) top is equipped with a plurality of top of the tower fixed orificess (342), tower top lid (34) and distribution ring (12) fastening connection, heat sink (1) still includes mounting (14), mounting (14) are passed top of the tower fixed orificess (342) and annular fixed orifices (122), and mounting (14) excircle face and annular fixed orifices (122) and top of the tower fixed orifices (342) hole face laminating.
4. The hazardous waste incineration flue gas water-cooling circulation device of claim 1, characterized in that: first deacidification tower (3) top is equipped with the flue gas and advances pipe (32), be equipped with into the mouth of pipe in the middle of tower top cap (34), the flue gas advances tub outer disc of (32) and tower top cap (34) and advances a mouthful fixed connection, body of the tower (33) lower extreme is equipped with delivery port (331), second deacidification tower (4) bottom is equipped with delivery port (331), delivery port (331) stretch into intake zone (213) through water pipe (6) in, delivery port (331) and the outer disc fastening connection of water pipe (6), body of the tower (33) side is equipped with out smoke hole (332), flue gas pipeline (7) advance in the smoke end inserts out smoke hole (332), flue gas pipeline (7) surface and play smoke hole (332) laminating, second deacidification tower (4) side is equipped with into smoke hole (41), flue gas pipeline (7) play smoke end inserts into smoke hole (41).
5. The hazardous waste incineration flue gas water-cooling circulation device of claim 2, characterized in that: the water-cooling circulating device further comprises a water pump (5), the water pump (5) is arranged on a pipeline of a connecting water pipe (6) of the cooling device (1) and the circulating device (2), the water pump (5) is inserted into the water outlet area (214) through the water pipe (6), and the water outlet of the water pump (5) is connected with the water inlet end of the water replenishing valve (111) through the water pipe (6).
6. The hazardous waste incineration flue gas water-cooling circulation device of claim 2, characterized in that: the first deacidification tower (3) further comprises a temperature controller (31), one end of the temperature controller (31) is fixedly connected with the outer surface of the tower body (33), and the temperature controller (31) is connected with the water replenishing valve (111) through a line.
7. The hazardous waste incineration flue gas water-cooling circulation device of claim 6, characterized in that: the cooling device (1) further comprises a water film layer (13), and the water film layer (13) is attached to the inner wall of the tower body (33).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011577237.8A CN112843998B (en) | 2020-12-28 | 2020-12-28 | Water-cooling circulating device for hazardous waste incineration flue gas |
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| CN202011577237.8A CN112843998B (en) | 2020-12-28 | 2020-12-28 | Water-cooling circulating device for hazardous waste incineration flue gas |
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| CN112843998B true CN112843998B (en) | 2021-11-02 |
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| CN203829831U (en) * | 2014-03-20 | 2014-09-17 | 江苏华正环保科技股份有限公司 | Circulating pool |
| CN208066017U (en) * | 2018-02-05 | 2018-11-09 | 苏州艾特斯环保设备有限公司 | A kind of falling liquid film wetted wall tower |
| CN108151050A (en) * | 2018-02-07 | 2018-06-12 | 无锡雪浪环境科技股份有限公司 | A kind of dangerous waste burns wet method depickling flue gas and takes off white system and its application method |
| CN210463069U (en) * | 2019-07-17 | 2020-05-05 | 杭州中昊科技有限公司 | Quenching device |
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Address after: 200331, 5th floor, No. 277, Huqingping Road, Minhang District, Shanghai Patentee after: Shanghai Yude Environmental Protection Co.,Ltd. Address before: Room 1355, building 3, 215 Yumen Road, Putuo District, Shanghai 200040 Patentee before: SHANGHAI YUDE ENVIRONMENT PROTECTION ENGINEERING Co.,Ltd. |
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