CN110975420A - Flue gas purifying device - Google Patents
Flue gas purifying device Download PDFInfo
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- CN110975420A CN110975420A CN201911322030.3A CN201911322030A CN110975420A CN 110975420 A CN110975420 A CN 110975420A CN 201911322030 A CN201911322030 A CN 201911322030A CN 110975420 A CN110975420 A CN 110975420A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/02—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
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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
- B01D53/26—Drying gases or vapours
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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
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
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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
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
- B01D2247/10—Means for removing the washing fluid dispersed in the gas or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
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- 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
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- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a flue gas purification device, wherein a flue gas purifier is communicated with a smoke exhaust port of a boiler through a smoke exhaust channel; the inlet end of the smoke dust settling channel is communicated with the smoke purifier, and the outlet end of the smoke dust settling channel is provided with a first induced draft fan; the combustion improver mixing pipeline is a three-way pipeline, the first end of the combustion improver mixing pipeline is communicated with one end of a smoke dust settling channel provided with a first induced draft fan, the second end of the combustion improver mixing pipeline is communicated with a feeder, and the third end of the combustion improver mixing pipeline is communicated with a spiral hollow pipe; flue gas combustion chamber and heliciform hollow tube intercommunication, and install second draught fan, a plurality of gas nozzle and temperature sensor in the flue gas combustion chamber, a plurality of gas nozzles all correspond simultaneously and put through to the gas feeding device through the gas pipe, and all are provided with the electronic valve between every gas nozzle and the gas pipe. The invention provides a flue gas purification device, which not only respectively treats different harmful substances in flue gas, but also enables the flue gas to be fully combusted, thereby improving the cleanliness of the flue gas discharged to the outside.
Description
Technical Field
The invention relates to the technical field of energy-saving and emission-reducing devices, in particular to a flue gas purification device.
Background
At present, most of industrial boilers and domestic boilers in China still use coal or petroleum as fuel, and the fuel can generate a large amount of dust and toxic gas after combustion, thereby not only threatening the health of human bodies, but also influencing the growth of surrounding crops and trees and causing serious pollution to the surrounding environment.
However, the flue gas purification device in the prior art directly burns the flue gas, and the harmful substance in the flue gas is more, and the harmful substance that leads to in the flue gas can not be eliminated totally through the mode of burning to when handling the flue gas through the mode of burning among the prior art, there is the insufficient problem of flue gas burning, leads to after the flue gas through burning discharges into the atmosphere, still causes harm to the environment.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art.
In view of this, the invention provides a flue gas purification device, which not only respectively treats different harmful substances in flue gas, but also enables the flue gas to be fully combusted, thereby improving the cleanliness of the flue gas discharged to the outside.
In order to achieve the purpose, the invention adopts the following technical scheme:
a flue gas cleaning device comprising:
the smoke purifier is communicated with a smoke exhaust port of the boiler through a smoke exhaust channel;
the inlet end of the smoke and dust settling channel is communicated with the smoke purifier, and the outlet end of the smoke and dust settling channel is provided with a first induced draft fan;
the combustion improver mixing pipeline is a three-way pipeline, the first end of the combustion improver mixing pipeline is communicated with one end of the smoke dust settling channel provided with the first induced draft fan, the second end of the combustion improver mixing pipeline is communicated with a feeder, and the third end of the combustion improver mixing pipeline is communicated with a spiral hollow pipe;
the smoke combustion chamber is communicated with the spiral hollow pipe, a second induced draft fan, a plurality of gas nozzles and a temperature sensor are installed in the smoke combustion chamber, the plurality of gas nozzles are communicated with a gas supply device through gas pipes correspondingly, and an electronic valve is arranged between each gas nozzle and each gas pipe;
and the controller is respectively and electrically connected with the first induced draft fan, the second induced draft fan, the electronic valve and the temperature sensor.
The invention absorbs harmful gas in the flue gas through the flue gas purifier, settles the smoke dust in the flue gas through the smoke dust settling channel, and transmits the waste gas which is treated by absorbing the harmful gas and settling the smoke dust to the flue gas combustion chamber through the combustion improver mixing pipeline, thereby further burning the unburnt gas in the waste gas in the flue gas combustion chamber, and because the burning waste gas is mixed with the combustion improver before entering the flue gas combustion chamber, and the combustion improver and the burning waste gas can be fully mixed in the process of transmitting through the spiral hollow pipe, simultaneously, the temperature in the flue gas combustion chamber is detected through the temperature sensor, and the electronic valve is controlled through the controller, thereby controlling the burning temperature in the flue gas combustion chamber by controlling the number of the gas nozzles which spray flame, therefore, the invention fully mixes the waste gas and the flue gas and ensures the burning temperature in the flue gas combustion chamber, thereby not guaranteeing that the waste gas is fully combusted, and the waste gas eliminates harmful gas contained in the waste gas and dust in the waste gas before the waste gas is fully combusted, thereby reducing harmful substances, CO and the like of the waste gas after the waste gas is fully combusted, and improving the cleanliness of the smoke discharged to the outside.
Preferably, the flue gas purifier is filled with lime water to absorb sulfides and nitrogen oxides in the flue gas.
According to the invention, the lime water is stored in the flue gas purifier, so that harmful substances such as sulfide and nitrogen oxide in the flue gas can be absorbed, and the harmful gases are prevented from being continuously contained in the gas after the waste gas is combusted in the flue gas combustion chamber, and the energy-saving and environment-friendly effects are achieved.
Preferably, the inner wall of the smoke dust settling channel is provided with a spray head, the spray head is connected with a spray device, and the spray device is electrically connected with the controller;
meanwhile, a waste liquid collecting box is communicated with the inner wall of the smoke dust settling channel and receives waste liquid formed by the smoke dust settling of the atomizing spray head.
The invention settles the smoke dust in the smoke through the spray head and collects the waste liquid containing dust through the waste liquid collecting box, thereby preventing the smoke dust in the smoke from entering the smoke combustion chamber for combustion, not only improving the efficiency of the combustion of the insufficiently combusted gas in the smoke combustion chamber, but also reducing the probability of explosion caused by the doping of the smoke dust in the smoke combustion chamber, and further improving the safety.
Preferably, a dehumidifier is installed at an outlet end of the smoke and dust settling channel, and is used for removing water vapor of the lime water, water mist sprayed by the spray head and water vapor of the waste liquid.
The dehumidifier can remove the water vapor of the lime water, the water mist sprayed by the spray head and the water vapor of the waste liquid, thereby ensuring that the gas entering the flue gas combustion chamber is dried, and improving the combustion efficiency of the flue gas combustion chamber.
Preferably, the first end and the second end of the combustion improver mixing pipeline are both hollow frustum-shaped pipelines, the inlet end of the first end of the combustion improver mixing pipeline is communicated with one end of the smoke dust settling channel provided with the first induced draft fan, the inlet end of the second end of the combustion improver mixing pipeline is communicated with the oxygen supply machine, and meanwhile, the first end of the combustion improver mixing pipeline is communicated with the outlet end of the second end of the combustion improver mixing pipeline;
moreover, the caliber of the inlet end of the first end hollow frustum-shaped pipeline of the combustion improver mixing pipeline is larger than that of the outlet end of the pipeline;
meanwhile, the caliber of the inlet end of the hollow frustum-shaped pipeline at the second end of the combustion improver mixing pipeline is larger than that of the outlet end of the hollow frustum-shaped pipeline.
According to the invention, the first end and the second end of the combustion improver mixing pipeline are both arranged to be hollow frustum-shaped pipelines, the caliber of the inlet end of the first end of the combustion improver mixing pipeline is larger than that of the outlet end of the combustion improver mixing pipeline, and the caliber of the inlet end of the second end of the combustion improver mixing pipeline is larger than that of the outlet end of the combustion improver mixing pipeline, so that the flow velocity of the combustion improver in the outlet end of the first end of the mixing pipeline is improved, and the flow velocity of the flue gas in the outlet end of the second end of the combustion improver mixing pipeline is improved, therefore, the intensity of mixing collision of the combustion improver and the flue gas is higher, the mixing efficiency of the combustion improver and the flue gas is improved, and meanwhile.
Preferably, a plurality of supporting shafts are radially fixed on the inner wall of the spiral hollow pipe, each supporting shaft is rotatably connected with a roller through a bearing, and each roller and the inner wall of the spiral hollow pipe are reserved with a smoke circulation channel.
The spiral hollow pipe is connected with a plurality of rollers in a rotating way through the supporting shaft, so that the flowing resistance of the mixed gas in the spiral hollow pipe is improved, the mutual fusion degree of the flue gas and the combustion improver in the flowing process is improved, the flue gas and the combustion improver are fully mixed, and necessary conditions are improved for the full combustion of the flue gas in the flue gas combustion chamber.
Preferably, a plurality of combustion chambers are limited in the flue gas combustion chamber through partition plates, each combustion chamber is provided with the temperature sensor, a flue gas inlet and an exhaust port are formed in the wall of each combustion chamber, a gas pipe channel is formed in each gas pipe channel, and a plurality of gas nozzles uniformly penetrate through the wall of each combustion chamber and are communicated with the gas pipe.
According to the invention, the flue gas combustion chamber is divided into the plurality of combustion chambers, and the plurality of gas nozzles are arranged on the chamber wall of each combustion chamber, so that the combustion space of waste gas can be reduced, the waste gas in each combustion chamber can be contacted with the flame head of the gas nozzle, the problem that residual waste gas in the combustion chamber cannot be contacted with the flame head of the gas nozzle is avoided, the combustion efficiency of the waste gas in the flue gas combustion chamber is improved, meanwhile, the waste gas can be further ensured to be fully combusted in the flue gas combustion chamber, toxic substances generated by incomplete combustion are avoided, and the gas discharged to the atmosphere is clean and environment-friendly.
Preferably, each flue gas inlet is provided with an anti-backfire device.
According to the invention, the anti-backfire device is arranged on the smoke inlet, so that the problem of backfire caused by combustion of smoke in the combustion cavity is prevented, and the safety of the invention is improved.
Through the technical scheme, compared with the prior art, the invention discloses and provides the flue gas purification device, which can realize the following technical effects:
the invention absorbs harmful gas in the flue gas through the flue gas purifier, settles the smoke dust in the flue gas through the smoke dust settling channel, and transmits the waste gas which is treated by absorbing the harmful gas and settling the smoke dust to the flue gas combustion chamber through the combustion improver mixing pipeline, thereby further burning the unburnt gas in the waste gas in the flue gas combustion chamber, and because the burning waste gas is mixed with the combustion improver before entering the flue gas combustion chamber, and the combustion improver and the burning waste gas can be fully mixed in the process of transmitting through the spiral hollow pipe, simultaneously, the temperature in the flue gas combustion chamber is detected through the temperature sensor, and the electronic valve is controlled through the controller, thereby controlling the burning temperature in the flue gas combustion chamber by controlling the number of the gas nozzles which spray flame, therefore, the invention fully mixes the waste gas and the flue gas and ensures the burning temperature in the flue gas combustion chamber, thereby not guaranteeing that the waste gas is fully combusted, and the waste gas eliminates harmful gas contained in the waste gas and dust in the waste gas before the waste gas is fully combusted, thereby reducing harmful substances, CO and the like of the waste gas after the waste gas is fully combusted, and improving the cleanliness of the smoke discharged to the outside.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a flue gas purification device of the invention.
Wherein, 1 is a smoke purifier; 11 is a smoke exhaust channel; 12 is a boiler; 2 is a smoke dust settling channel; 21 is a first induced draft fan; 3 is a combustion improver mixing pipeline; 31 is a feeding machine; 32 is a helical hollow tube; 4 is a flue gas combustion chamber; 41 is a second induced draft fan; 411 is a gas nozzle; 410 is a gas pipe; 22 is a spray head; 23 is a waste liquid collecting box; 20 is a dehumidifier; 321 is a supporting shaft; 322 is a roller; 41 is a combustion chamber; 412 is an exhaust port; 413 is an anti-backfire device.
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.
The embodiment of the invention discloses a flue gas purification device, which comprises:
the flue gas purifier 1 is communicated with a flue gas outlet of a boiler 12 through a flue gas channel 11;
the inlet end of the smoke dust settling channel 2 is communicated with the smoke purifier 1, and the outlet end of the smoke dust settling channel 2 is provided with a first induced draft fan 21;
the combustion improver mixing pipeline 3 is a three-way pipeline, the first end of the combustion improver mixing pipeline 3 is communicated with one end of the smoke dust settling channel 2 provided with a first induced draft fan 21, the second end of the combustion improver mixing pipeline is communicated with a feeder 31, and the third end of the combustion improver mixing pipeline is communicated with a spiral hollow pipe 32;
the flue gas combustion chamber 4 is communicated with the spiral hollow pipe 32, a second induced draft fan 41, a plurality of gas nozzles 411 and a temperature sensor are installed in the flue gas combustion chamber 4, meanwhile, the plurality of gas nozzles 411 are communicated with a gas supply device through gas pipes 410 correspondingly, and an electronic valve is arranged between each gas nozzle 411 and each gas pipe 410;
the controller, the first draught fan 21 of controller difference electric connection, second draught fan 41, electronic valve and temperature sensor.
In order to further optimize the technical scheme, lime water is stored in the flue gas purifier 1 and used for absorbing sulfides and nitrogen oxides in the flue gas.
In order to further optimize the technical scheme, the inner wall of the smoke dust settling channel 2 is provided with a spray head 22, the spray head 22 is connected with a spray device, and the spray device is electrically connected with the controller;
meanwhile, a waste liquid collecting box 23 is communicated with the inner wall of the smoke dust settling channel 2, and the waste liquid collecting box 23 receives waste liquid formed by settling smoke dust by the spray head 22.
In order to further optimize the above technical solution, a dehumidifier 20 is installed at the outlet end of the soot settling channel 2 to remove the water vapor of the lime water, the water mist sprayed by the spray head 22, and the water vapor of the waste liquid.
In order to further optimize the technical scheme, the first end and the second end of the combustion improver mixing pipeline 3 are both hollow frustum-shaped pipelines, the inlet end of the first end of the combustion improver mixing pipeline 3 is communicated with one end of the smoke settling channel 2 provided with the first induced draft fan 21, the inlet end of the second end of the combustion improver mixing pipeline 3 is communicated with the oxygen supply machine 31, and meanwhile, the outlet ends of the first end and the second end of the combustion improver mixing pipeline 3 are communicated with each other;
moreover, the caliber of the inlet end of the hollow frustum-shaped pipeline at the first end of the combustion improver mixing pipeline 3 is larger than that of the outlet end thereof;
meanwhile, the caliber of the inlet end of the hollow frustum-shaped pipeline at the second end of the combustion improver mixing pipeline 3 is larger than that of the outlet end thereof.
In order to further optimize the above technical solution, a plurality of supporting shafts 321 are radially fixed on the inner wall of the spiral hollow pipe 32, and each supporting shaft 321 is rotatably connected with a roller 322 through a bearing, and meanwhile, a flue gas circulation channel is reserved between each roller 322 and the inner wall of the spiral hollow pipe 32.
In order to further optimize the above technical solution, a plurality of combustion chambers 41 are defined in the flue gas combustion chamber 4 by partition plates, each combustion chamber 41 is provided with a temperature sensor, a flue gas inlet and an exhaust port 412 are provided on the chamber wall of each combustion chamber 41, a gas pipe channel is provided at the same time, a gas pipe 410 is provided in the gas pipe channel, and a plurality of gas nozzles 411 uniformly penetrate through the chamber wall of each combustion chamber 41 and are communicated with the gas pipe 410.
In order to further optimize the above technical solution, an anti-backfire device 413 is installed between each flue gas inlet and the interface of the flue gas combustion chamber 4 communicated with the spiral hollow pipe 32.
Example (b):
under the control of the controller, the smoke generated by the boiler 12 of the invention is attracted by the first induced draft fan 21, the lime water in the smoke exhausting channel 11 can absorb the sulfide, the nitrogen oxide and other harmful substances in the smoke, reduce the emission of harmful gas, and because the smoke dust settling channel 2 is communicated with the smoke purifier 1, after harmful gas in the smoke is absorbed, can continuously flow into the smoke dust sedimentation channel 2, the smoke dust in the smoke gas is sedimentated through the spray head 22, and the sedimentated waste liquid is stored in the waste liquid collection box 23 for the subsequent place, meanwhile, as the dehumidifier 20 is arranged at the outlet end of the smoke dust settling channel 2, the water vapor of the lime water, the water mist sprayed by the spray head 22 and the water vapor of the waste liquid can be removed, and the drying of the output smoke gas is ensured;
under the attraction of the second induced draft fan 41, the flue gas treated by the above-mentioned treatment is transmitted to the flue gas combustion chamber 4 through the combustion improver mixing pipeline 3, and because the combustion improver mixing pipeline 3 is communicated to the oxygen supply machine 31, the combustion improver can be mixed in the process of transmitting the flue gas to the flue gas combustion chamber 4, and the third end of the combustion improver mixing pipeline 3 is communicated with the flue gas combustion chamber 4 through the spiral hollow pipe 32, so that the mixing time of the flue gas and the oxygen can be prolonged, and a plurality of support shafts 321 are radially fixed on the inner wall of the spiral hollow pipe 32, each support shaft 321 is rotatably connected with a roller 322 through a bearing, and a flue gas circulation channel is reserved between each roller 322 and the inner wall of the spiral hollow pipe 32, so that the circulation resistance of the flue gas and the combustion improver in the spiral hollow pipe 32 is improved, thereby the degree of mutual fusion of the flue gas and the combustion improver in the, the flue gas and the combustion improver are fully mixed, and necessary conditions are improved for the flue gas to be fully combusted in the flue gas combustion chamber 4;
meanwhile, the invention divides the flue gas combustion chamber 4 into a plurality of combustion chambers 41, and a plurality of gas nozzles 411 are arranged on the chamber wall of each combustion chamber 41, thereby reducing the combustion space of the waste gas, so that the waste gas in each combustion chamber 41 can be contacted with the flame head of the gas nozzle 411, avoiding the problem that the residual waste gas in the combustion chamber 41 can not be contacted with the flame head of the gas nozzle 411, thereby improving the combustion efficiency of the waste gas in the flue gas combustion chamber 4, further ensuring the full combustion of the waste gas in the flue gas combustion chamber 4, therefore, the generation of toxic substances generated by incomplete combustion is avoided, the gas discharged into the atmosphere is clean and environment-friendly, and the anti-backfire device 413 is arranged on the smoke inlet, thereby preventing the fume from being burned in the combustion chamber 41 to cause backfire and improving the safety of the invention.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A flue gas cleaning device, comprising:
the flue gas purifier (1) is communicated with a smoke exhaust port of the boiler (12) through a smoke exhaust channel (11);
the inlet end of the smoke and dust settling channel (2) is communicated with the smoke purifier (1), and the outlet end of the smoke and dust settling channel (2) is provided with a first induced draft fan (21);
the combustion improver mixing pipeline (3) is a three-way pipeline, the first end of the combustion improver mixing pipeline (3) is communicated with one end of the smoke dust settling channel (2) provided with the first induced draft fan (21), the second end of the combustion improver mixing pipeline is communicated with a feeder (31), and the third end of the combustion improver mixing pipeline is communicated with a spiral hollow pipe (32);
the flue gas combustion chamber (4) is communicated with the spiral hollow pipe (32), a second draught fan (41), a plurality of gas nozzles (411) and a temperature sensor are installed in the flue gas combustion chamber (4), the plurality of gas nozzles (411) are correspondingly communicated with a gas supply device through gas pipes (410), and an electronic valve is arranged between each gas nozzle (411) and each gas pipe (410);
the controller, the controller is electric connection respectively first draught fan (21), second draught fan (41), the electronic valve and temperature sensor.
2. A flue gas cleaning device according to claim 1, characterized in that the flue gas cleaner (1) is filled with lime water to absorb sulfides and nitrogen oxides in the flue gas.
3. The flue gas purification device according to claim 1, wherein a spray head (22) is installed on the inner wall of the smoke dust settling channel (2), and a spray device is connected to the spray head (22) and electrically connected to the controller;
meanwhile, a waste liquid collecting box (23) is communicated with the inner wall of the smoke dust settling channel (2), and the waste liquid collecting box (23) receives waste liquid formed by the settled smoke dust of the spray head (22).
4. A flue gas cleaning apparatus according to any one of claims 2 or 3, characterized in that the outlet end of the soot settling channel (2) is fitted with a dehumidifier (20) for removing the water vapor of the lime water, the water mist sprayed by the spray head (22) and the water vapor of the waste liquid.
5. The flue gas purification device according to claim 1, wherein the first end and the second end of the combustion improver mixing pipeline (3) are both hollow frustum-shaped pipelines, the inlet end of the first end of the combustion improver mixing pipeline (3) is communicated with one end of the smoke settling channel (2) provided with the first induced draft fan (21), the inlet end of the second end of the combustion improver mixing pipeline (3) is communicated with the oxygen supply machine (31), and meanwhile, the first end and the outlet end of the second end of the combustion improver mixing pipeline (3) are communicated with each other;
moreover, the caliber of the inlet end of the hollow frustum-shaped pipeline at the first end of the combustion improver mixing pipeline (3) is larger than that of the outlet end thereof;
meanwhile, the caliber of the inlet end of the hollow frustum-shaped pipeline at the second end of the combustion improver mixing pipeline (3) is larger than that of the outlet end thereof.
6. The flue gas purification device according to claim 1, wherein a plurality of support shafts (321) are radially fixed on the inner wall of the spiral hollow pipe (32), each support shaft (321) is rotatably connected with a roller (322) through a bearing, and a flue gas flow channel is reserved on each roller (322) and the inner wall of the spiral hollow pipe (32).
7. A flue gas purification apparatus according to claim 1, wherein a plurality of combustion chambers (41) are defined in the flue gas combustion chamber (4) through partition plates, each combustion chamber (41) is provided with the temperature sensor, a flue gas inlet and outlet (412) are opened on the chamber wall of each combustion chamber (41), and a gas pipe channel is opened at the same time, the gas pipe (410) is arranged in the gas pipe channel, and a plurality of gas nozzles (411) are uniformly communicated to the gas pipe (410) through the chamber wall of each combustion chamber (41).
8. A flue gas cleaning device according to claim 7, wherein each of said flue gas inlet openings is provided with an anti-backfire device (413).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911322030.3A CN110975420A (en) | 2019-12-20 | 2019-12-20 | Flue gas purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911322030.3A CN110975420A (en) | 2019-12-20 | 2019-12-20 | Flue gas purifying device |
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| Publication Number | Publication Date |
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| CN110975420A true CN110975420A (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911322030.3A Withdrawn CN110975420A (en) | 2019-12-20 | 2019-12-20 | Flue gas purifying device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111450674A (en) * | 2020-04-23 | 2020-07-28 | 自贡市东方联合机械配套有限公司 | Tail gas reoxidation device for removing acidic oxide smoke exhaust pipeline |
| CN113465086A (en) * | 2021-08-05 | 2021-10-01 | 柳州工学院 | Indoor air purification device |
-
2019
- 2019-12-20 CN CN201911322030.3A patent/CN110975420A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111450674A (en) * | 2020-04-23 | 2020-07-28 | 自贡市东方联合机械配套有限公司 | Tail gas reoxidation device for removing acidic oxide smoke exhaust pipeline |
| CN113465086A (en) * | 2021-08-05 | 2021-10-01 | 柳州工学院 | Indoor air purification device |
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