CN116920612B - Energy-saving and environment-friendly device for desulfurizing and denitrating boiler flue gas - Google Patents

Energy-saving and environment-friendly device for desulfurizing and denitrating boiler flue gas Download PDF

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Publication number
CN116920612B
CN116920612B CN202310803607.2A CN202310803607A CN116920612B CN 116920612 B CN116920612 B CN 116920612B CN 202310803607 A CN202310803607 A CN 202310803607A CN 116920612 B CN116920612 B CN 116920612B
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fixedly connected
pipe
flue gas
tube
temperature
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CN116920612A (en
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袁成超
王巍
李申强
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Jingqing Energy Conservation And Environmental Protection Technology Tianjin Co ltd
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Jingqing Energy Conservation And Environmental Protection Technology Tianjin Co ltd
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    • 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
    • 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
    • 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
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8603—Removing sulfur compounds
    • B01D53/8609—Sulfur 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2062—Ammonia
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (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)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention provides a boiler flue gas desulfurization and denitrification energy-saving environment-friendly device, which relates to the field of energy conservation and environment protection and comprises a bottom plate, wherein a water storage tank is fixedly connected to the left side of the top of the bottom plate, a low-temperature oxygenerator is fixedly connected to the top of the bottom plate, a condenser is fixedly connected to the left end of an air compressor of the low-temperature oxygenerator, an evaporator is fixedly connected to the front side of the low-temperature oxygenerator, a refrigerating coil is fixedly connected to the front end of the evaporator, low-temperature water can be transmitted to a square hole pipe through an annular pipe, the low-temperature water can flow in a unidirectional manner in the square hole pipe, the outer side of a radiating fin can be continuously cooled, the temperature difference of a temperature difference generating plate cold electrode can be cooled by an air compressor of the air compressor in the operation process of the low-temperature oxygenerator, the power generation efficiency of the temperature difference generating plate can be improved, and the problem that the existing energy-saving environment-friendly device is inconvenient to improve the energy utilization rate of limestone wet flue gas desulfurization process of gypsum is solved.

Description

Energy-saving and environment-friendly device for desulfurizing and denitrating boiler flue gas
Technical Field
The invention relates to the technical field of energy conservation and environmental protection, in particular to a boiler flue gas desulfurization and denitrification energy-saving and environmental protection device.
Background
When the inside of the industrial boiler burns, sulfides and nitrifiers are generated in the high-temperature flue gas, so that the environment is polluted, and the flue gas is required to be purified by using specific equipment, as disclosed in patent CN110052118A, the wet flue gas desulfurization device comprises: an absorption tank storing an absorption solution, the absorption solution comprising an alkaline absorption material, an absorption tower extending from an upper portion of the absorption tank, an exhaust gas inlet pipe provided at one side of the absorption tower, an exhaust gas outlet pipe provided at the other side of the absorption tower, a sprayer installed in the absorption tower and spraying the absorption solution, a circulation pump supplying the absorption solution in the absorption tank to the sprayer, an oxygen supply pipe installed to the absorption tank and supplying an oxygen-containing gas to the absorption tank, and a by-product discharge unit installed at a lower portion of the absorption tank and discharging a by-product, the wet flue gas desulfurization apparatus being capable of adjusting a position at which the oxygen supply pipe supplies the oxygen-containing gas along at least one of a vertical and a horizontal direction of the absorption tank, and thus being capable of effectively supplying the oxygen-containing gas for oxidation.
However, the energy-saving and environment-friendly device is inconvenient to use heat of the device to perform green power generation in the process of flue gas transmission and temperature reduction, so that the energy-saving and environment-friendly purpose is realized, the temperature difference between flue gas and a thermoelectric generation sheet is inconvenient to improve the power generation efficiency, the energy utilization rate consumed by the limestone gypsum wet flue gas desulfurization process is inconvenient to improve, and the existing device is inconvenient to perform functional treatment on alkaline absorption solution.
Disclosure of Invention
In view of this, the invention provides an energy-saving and environment-friendly device for desulfurizing and denitrating boiler flue gas, which can drive a primary platform to vertically translate by rotating an adjusting screw rod B, can adjust the height of an expansion card, can drive a reciprocating screw rod C to vertically rotate by rotating a worm hand wheel A, can vertically and horizontally adjust the expansion card, and is convenient for adjusting and adapting PCI expansion slots and memory sockets which are plugged at different angles.
The invention provides a purpose and an effect of a boiler flue gas desulfurization and denitrification energy-saving environment-friendly device, which specifically comprises a bottom plate; the left side of the top of the bottom plate is fixedly connected with a water storage tank; the bottom plate top is fixedly connected with a low-temperature oxygenerator, the left end of an air compressor of the low-temperature oxygenerator is fixedly connected with a condenser, the front side of the low-temperature oxygenerator is fixedly connected with an evaporator, the evaporator is connected with a water storage tank, the front end of the evaporator is fixedly connected with a refrigeration coil pipe, the refrigeration coil pipe penetrates through the inner side of the water storage tank, the right end of the low-temperature oxygenerator is fixedly connected with an oxygen delivery pipe, the rear side of the water storage tank is fixedly connected with a control valve pipe, the bottom of the control valve pipe is fixedly connected with the oxygen delivery pipe, the right side of the top of the water storage tank is fixedly connected with a transmission pump A, the top of the water storage tank is fixedly connected with a transmission pump B, and the top of the transmission pump B is fixedly connected with a vertical pipe; the top of the bottom plate is provided with a smoke square tube, the side surface of the vertical tube is fixedly connected with an annular tube, the side surface of the annular tube is fixedly connected with a bifurcated tube, the outer vertical surface of the smoke square tube is fixedly connected with a thermoelectric generation sheet, the outer vertical surface of the thermoelectric generation sheet is fixedly connected with a radiating fin, the outer side of the radiating fin is fixedly connected with a square hole tube, the left end and the right end of the square hole tube are fixedly connected with the bifurcated tube, the right end of the smoke square tube is fixedly connected with the vertical square tube, and the inside of the vertical square tube is fixedly connected with an ammonia pipe; the utility model discloses a denitration device, including vertical side pipe, electric telescopic handle, discharge tube, denitration tube right side fixedly connected with ultrasonic transducer, denitration tube inside fixedly connected with catalytic screen, denitration tube right side fixedly connected with dust remover, vertical side pipe right-hand member fixedly connected with denitration tube, electric telescopic handle front side facade department fixedly connected with electric telescopic handle, electric telescopic handle telescopic portion fixedly connected with discharge tube, the bottom fixedly connected with shower nozzle of discharge tube left and right sides, discharge tube and denitration tube sliding connection.
Optionally, bottom plate top fixedly connected with mixer, transmission pump A's output pipeline is located the mixer top, and mixer bottom right side fixedly connected with transmission pump C.
Optionally, the right end fixedly connected with desulfurizing tube of dust remover, desulfurizing tube inboard fixedly connected with defroster.
Optionally, a spraying pipe is fixedly connected to the inner side of the desulfurization pipe, and the spraying pipe is fixedly connected with the oxygen therapy pipe.
Optionally, the desulfurizing tube top fixedly connected with blast pipe, desulfurizing tube inboard fixedly connected with spray tube, bottom plate top right side fixedly connected with sedimentation tank, sedimentation tank right side fixedly connected with circulation tank.
Optionally, be provided with the filter screen between sedimentation tank and the circulating tank, circulating tank top fixedly connected with transfer pump D, transfer pump D output pipeline is connected with the spray tube.
Optionally, the circulating tank top fixedly connected with transmission pump E, circulating tank right side fixedly connected with clarifier, clarifier are connected with circulating tank inside through the pipeline, and transmission pump E input pipeline is connected with the sedimentation tank inside, and transmission pump C output pipeline is connected with the sedimentation tank inside.
Advantageous effects
According to the environment-friendly device provided by the embodiments of the invention, the operation of the low-temperature oxygen generator is controlled, so that the low-temperature oxygen generator can pressurize air at low temperature to prepare oxygen, the water inflow of the oxygen therapy pipe can be controlled by adjusting the valve of the control valve pipe, and the water content sprayed in the desulfurization pipe can be conveniently adjusted.
In addition, at the in-process that the flue gas side pipe was carried high temperature flue gas, can make its high temperature heat the thermoelectric generation piece thermode that is close to its surface, can make the fin cool down the heat dissipation to the cold electrode in the thermoelectric generation piece outside, can utilize its heat to carry out green electricity generation at flue gas transmission and the in-process of cooling to realize energy-concerving and environment-protective purpose.
In addition, in the process of pressurizing air by the operation of the air compressor in the low-temperature oxygenerator, the air compressor can drive the evaporator and the refrigerating coil to cool water in the water storage tank, the low-temperature water in the water storage tank can be transmitted to the annular pipe through the vertical pipe by controlling the operation of the transmission pump B, the low-temperature water can be transmitted to the square hole pipe through the annular pipe, the low-temperature water can flow unidirectionally in the square hole pipe, the outer side of the radiating fin can be continuously cooled, the air compressor can be utilized for refrigerating and cooling the cold electrode of the thermoelectric generation sheet in the operation process of the low-temperature oxygenerator, the temperature difference of the electrodes at two sides of the thermoelectric generation sheet can be improved, the power generation efficiency of the thermoelectric generation sheet can be improved, and the energy utilization rate of the limestone gypsum wet flue gas desulfurization process can be improved.
In addition, after the flue gas after the cooling gets into the denitration pipe inside, through controlling electric telescopic handle operation, can make it drive the exhaust pipe that sprays and carry out reciprocal translation, can carry out high-frequency oscillation to the catalytic sieve through ultrasonic transducer operation, can prevent the deposition.
In addition, the arc plate-shaped structure can be heated by the heat of the flue gas in the flue gas square tube, so that the flowing mortar containing anhydrous gypsum can be heated, the anhydrous gypsum can be left on the surface of the arc plate-shaped structure after moisture is evaporated, the anhydrous gypsum on the surface can be heated and decomposed into semi-hydrated gypsum by continuous heating, the semi-hydrated gypsum can be used for building materials, and the functionality of the device can be improved.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
The drawings described below are only for illustration of some embodiments of the invention and are not intended to limit the invention.
In the drawings:
Fig. 1 is a schematic diagram of the overall front structure of an environment-friendly device according to an embodiment of the invention.
Fig. 2 is a schematic view of the entire rear structure of the environment-friendly device according to the embodiment of the invention.
Fig. 3 is an enlarged partial schematic view of fig. 3a in accordance with the present invention.
Fig. 4 is a schematic side sectional structure of a denitration pipe of an environmental protection device according to an embodiment of the present invention.
Fig. 5 is an enlarged partial schematic view of B of fig. 4 in accordance with the present invention.
Fig. 6 is an enlarged partial schematic view of C of fig. 4 in accordance with the present invention.
Fig. 7 is an enlarged partial schematic view of D of fig. 4 in accordance with the present invention.
Fig. 8 is a schematic view of a three-dimensional disassembled structure of a square hole pipe of an environmental protection device according to an embodiment of the present invention.
List of reference numerals
1. A bottom plate;
2. A water storage tank;
201. a transfer pump A; 202. a transfer pump B; 203. a vertical pipe; 204. an annular tube; 205. a branch pipe; 206. a control valve tube;
3. a low temperature oxygenerator;
301. a condenser; 302. an evaporator; 303. a refrigeration coil; 304. an oxygen therapy tube;
4. a smoke square tube;
401. Thermoelectric generation piece; 402. a heat sink; 403. a square hole pipe; 404. a vertical square tube; 405. an ammonia gas pipe;
5. a denitration tube;
501. an electric telescopic rod; 502. a discharge pipe; 503. an ultrasonic transducer; 504. a catalytic screen; 505. a dust remover;
6. A stirrer;
601. A transfer pump C;
7. A desulfurization tube;
701. A demister; 702. a spray tube; 703. an exhaust pipe; 704. a spray tube;
8. A sedimentation tank;
801. A circulation tank; 802. a transfer pump D; 803. a transfer pump E; 804. a clarifier.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples.
Examples: please refer to fig. 1 to 8:
The invention provides a boiler flue gas desulfurization and denitrification energy-saving environment-friendly device, which comprises a bottom plate 1; the left side of the top of the bottom plate 1 is fixedly connected with a water storage tank 2; the top of the bottom plate 1 is fixedly connected with a low-temperature oxygenerator 3, the left end of an air compressor of the low-temperature oxygenerator 3 is fixedly connected with a condenser 301, the front side of the low-temperature oxygenerator 3 is fixedly connected with an evaporator 302, the evaporator 302 is connected with a water storage tank 2, the front end of the evaporator 302 is fixedly connected with a refrigeration coil 303, the refrigeration coil 303 penetrates through the inner side of the water storage tank 2, the right end of the low-temperature oxygenerator 3 is fixedly connected with an oxygen delivery pipe 304, the rear side of the water storage tank 2 is fixedly connected with a control valve pipe 206, the bottom of the control valve pipe 206 is fixedly connected with the oxygen delivery pipe 304, the right side of the top of the water storage tank 2 is fixedly connected with a transmission pump A201, the top of the water storage tank 2 is fixedly connected with a transmission pump B202, and the top of the transmission pump B202 is fixedly connected with a vertical pipe 203; the top of the bottom plate 1 is provided with a flue gas square tube 4, the side surface of the vertical tube 203 is fixedly connected with an annular tube 204, the side surface of the annular tube 204 is fixedly connected with a bifurcated tube 205, a thermoelectric generation sheet 401 is fixedly connected to the outer side elevation of the flue gas square tube 4, a cooling fin 402 is fixedly connected to the outer side elevation of the thermoelectric generation sheet 401, a square hole tube 403 is fixedly connected to the outer side of the cooling fin 402, the left end and the right end of the square hole tube 403 are fixedly connected with the bifurcated tube 205, the right end of the flue gas square tube 4 is fixedly connected with a vertical square tube 404, and an ammonia tube 405 is fixedly connected to the inner part of the vertical square tube 404; the right end of the vertical square tube 404 is fixedly connected with a denitration tube 5, the front side elevation of the denitration tube 5 is fixedly connected with an electric telescopic rod 501, the telescopic part of the electric telescopic rod 501 is fixedly connected with a discharge tube 502, the bottoms of the left side and the right side of the discharge tube 502 are fixedly connected with spray heads, the discharge tube 502 is in sliding connection with the denitration tube 5, the right side of the denitration tube 5 is fixedly connected with an ultrasonic transducer 503, the inside of the denitration tube 5 is fixedly connected with a catalytic sieve 504, the right side of the denitration tube 5 is fixedly connected with a dust remover 505, the operation of the low-temperature oxygenerator 3 is controlled, the low-temperature oxygenerator can pressurize air to prepare oxygen, the water inflow of the oxygen delivery tube 304 can be controlled by adjusting the valve of the control valve tube 206, the water content sprayed inside the desulfurization tube 7 can be conveniently adjusted, the thermoelectric electrode 401 near the surface of the thermoelectric generator can be heated at high temperature in the process of the transmission of high-temperature flue gas by the flue gas square tube 4, the cooling fin 402 can cool and dissipate heat of the cold electrode outside the thermoelectric generation fin 401, green power generation can be carried out by utilizing heat of the cooling fin 402 in the process of flue gas transmission and cooling, so that the energy-saving and environment-friendly purposes are realized, the cooling fin can drive the evaporator 302 and the refrigerating coil 303 to cool water inside the water storage tank 2 in the process of pressurizing air in the low-temperature oxygenerator 3, the low-temperature water inside the water storage tank 2 can be transmitted to the annular pipe 204 through the vertical pipe 203 by controlling the operation of the transmission pump B202, the low-temperature water can be transmitted to the square hole pipe 403 through the annular pipe 204, the unidirectional flow of the low-temperature water inside the square hole pipe 403 can be carried out, the continuous cooling can be carried out on the outer side of the cooling fin 402, the cold electrode of the thermoelectric generation fin 401 can be refrigerated and cooled by utilizing the air compressor in the operation of the low-temperature oxygenerator 3, the energy utilization rate of the limestone-gypsum wet flue gas desulfurization process can be improved, after cooled flue gas enters the inside of the denitration pipe 5, the electric telescopic rod 501 is controlled to operate, the electric telescopic rod can drive the sprayed exhaust pipe 502 to reciprocate and translate, the ultrasonic transducer 503 operates to oscillate the catalytic sieve 504 at high frequency, dust deposition can be prevented, the catalyst can be sprayed through the exhaust pipe 502, and the flue gas passes through the catalytic sieve 504 to enable ammonia to carry out reduction reaction on nitrogen-oxygen compounds in the flue gas to produce nitrogen and water.
As shown in fig. 1 to 7, the mixer 6 is fixedly connected to the top of the bottom plate 1, the output pipeline of the transmission pump a201 is located above the mixer 6, the transmission pump C601 is fixedly connected to the right side of the bottom of the mixer 6, the desulfurization pipe 7 is fixedly connected to the right end of the dust remover 505, the demister 701 is fixedly connected to the inner side of the desulfurization pipe 7, the spraying pipe 702 is fixedly connected to the oxygen delivery pipe 304, the exhaust pipe 703 is fixedly connected to the top of the desulfurization pipe 7, the spraying pipe 704 is fixedly connected to the inner side of the desulfurization pipe 7, the sedimentation tank 8 is fixedly connected to the right side of the bottom plate 1, the circulation tank 801 is fixedly connected to the right side of the sedimentation tank 8, after the limestone powder is periodically transmitted to the inside of the mixer 6 through a conveyor belt, the water inside the water storage tank 2 can be transmitted to the inside the mixer 6 through the timing control transmission pump a201, limestone slurry can be automatically processed, the limestone slurry can be transmitted to the inside the sedimentation tank 8 through the transmission pump C601, the spraying pipe 704 can be performed inside the sedimentation tank 7 through controlling the transmission pump D802, the reaction between the calcium carbonate solution and the oxygen and the two-sulfur dioxide water can be discharged into the sedimentation tank 8, and the two-phase reaction water can be generated.
As shown in fig. 2 to 8, a filter screen is arranged between the sedimentation tank 8 and the circulation tank 801, the top of the circulation tank 801 is fixedly connected with a transmission pump D802, an output pipeline of the transmission pump D802 is connected with a spray pipe 704, the top of the circulation tank 801 is fixedly connected with a transmission pump E803, the right side of the circulation tank 801 is fixedly connected with a clarifier 804, the clarifier 804 is connected with the inside of the circulation tank 801 through a pipeline, an input pipeline of the transmission pump E803 is connected with the inside of the sedimentation tank 8, an output pipeline of the transmission pump C601 is connected with the inside of the sedimentation tank 8, mortar inside the sedimentation tank 8 can be transmitted to the inside of the clarifier 804 for clarification treatment through controlling the operation of the transmission pump E803, and the clarified mortar can be transmitted to the inside of the desulfurization pipe 7 again through the transmission pump D802 for spraying.
In another embodiment of the invention, the front side of the smoke square tube 4 is provided with a hollow arc-shaped plate-shaped structure, the front side of the sedimentation tank 8 is provided with a mortar pump, a mortar pump pipeline flows through the arc-shaped plate-shaped structure, the arc-shaped plate-shaped structure can be heated by the heat of smoke in the smoke square tube 4, the flowing mortar containing anhydrous gypsum can be heated, the anhydrous gypsum can be left on the surface of the arc-shaped plate-shaped structure after moisture is evaporated, the anhydrous gypsum on the surface can be heated and decomposed into semi-hydrated gypsum through continuous heating, the semi-hydrated gypsum can be used for building materials, and the functionality of the device can be improved.
Specific use and action of the embodiment: in the invention, the operation of the low-temperature oxygenerator 3 is controlled, the low-temperature oxygenerator can be used for pressurizing air at low temperature to prepare oxygen, the water inflow of the oxygen delivery pipe 304 can be controlled by adjusting the valve of the control valve pipe 206, the water content sprayed inside the desulfurization pipe 7 can be conveniently adjusted, the high temperature of the oxygenerator can be used for heating the thermoelectric generation plate 401 thermoelectric electrodes close to the surface of the oxygenerator in the process of transmitting high-temperature smoke through the smoke square pipe 4, the cooling plate 402 can be used for cooling and radiating the cold electrode outside the thermoelectric generation plate 401, the heat of the cooling plate can be used for green power generation in the process of transmitting and cooling the smoke, thereby realizing the purposes of energy conservation and environmental protection, the evaporator 302 and the refrigerating coil 303 can be driven to cool the water inside the water storage tank 2 in the process of pressurizing air in the operation of the air compressor inside the low-temperature oxygenerator 3, the transmission pump B202 is controlled to operate, the low-temperature water in the water storage tank 2 can be transmitted to the annular pipe 204 through the vertical pipe 203, the low-temperature water can be transmitted to the square hole pipe 403 through the annular pipe 204, the low-temperature water can flow in one direction in the square hole pipe 403, the outer side of the radiating fin 402 can be continuously cooled, the cold electrode of the thermoelectric generation fin 401 can be cooled by utilizing the air compressor in the operation process of the low-temperature oxygen generator 3, the energy utilization rate of the limestone gypsum wet flue gas desulfurization process can be improved, after the cooled flue gas enters the denitration pipe 5, the electric telescopic rod 501 is controlled to operate, the electric telescopic rod 501 can drive the spraying exhaust pipe 502 to reciprocate and translate, the catalytic sieve 504 can be oscillated at high frequency through the operation of the ultrasonic transducer 503, ash deposition can be prevented, the catalyst can be sprayed through the exhaust pipe 502, the flue gas can enable ammonia to carry out reduction reaction on nitrogen-oxygen compounds in the flue gas to produce nitrogen and water, after limestone powder is periodically transmitted to the inside of the stirrer 6 through a conveyor belt, the transmission pump A201 is controlled to operate at regular time, water in the water storage tank 2 can be transmitted to the inside of the stirrer 6, limestone slurry can be automatically processed, the limestone slurry can be transmitted to the inside of the settling tank 8 through the transmission pump C601, the limestone slurry can be transmitted to the spray pipe 704 to be sprayed in the desulfurization pipe 7 through controlling the transmission pump D802 to operate, oxygen input by the calcium carbonate solution and the exhaust pipe 703 and sulfur dioxide in flue gas react to generate dihydrate gypsum, the dihydrate gypsum can enter the settling tank 8 downwards to collect and settle, the slurry in the settling tank 8 can be transmitted to the inside of the clarifier 804 to be clarified through controlling the transmission pump E803, and the clarified slurry can be transmitted to the inside of the desulfurization pipe 7 again through the transmission pump D802 to be sprayed.

Claims (7)

1. The utility model provides a boiler flue gas desulfurization denitration energy-concerving and environment-protective device which characterized in that includes: a bottom plate (1); the left side of the top of the bottom plate (1) is fixedly connected with a water storage tank (2); the utility model discloses a low-temperature oxygenerator, a condenser (301) and a transmission pump A (201) are fixedly connected to the left end of an air compressor of the low-temperature oxygenerator (3), the evaporator (302) is connected with a water storage tank (2), a refrigerating coil (303) is fixedly connected to the front end of the evaporator (302), the refrigerating coil (303) penetrates through the inner side of the water storage tank (2), an oxygen delivery pipe (304) is fixedly connected to the right end of the low-temperature oxygenerator (3), a control valve pipe (206) is fixedly connected to the rear side of the water storage tank (2), the bottom of the control valve pipe (206) is fixedly connected with the oxygen delivery pipe (304), the right side of the top of the water storage tank (2) is fixedly connected with the transmission pump A (201), the transmission pump B (202) is fixedly connected to the top of the water storage tank (2), and a vertical pipe (203) is fixedly connected to the top of the transmission pump B (202); the flue gas square tube (4) is arranged at the top of the bottom plate (1), the annular tube (204) is fixedly connected to the side face of the vertical tube (203), the branch tube (205) is fixedly connected to the side face of the annular tube (204), the thermoelectric generation sheet (401) is fixedly connected to the outer side elevation of the flue gas square tube (4), the cooling fin (402) is fixedly connected to the outer side elevation of the thermoelectric generation sheet (401), the square hole tube (403) is fixedly connected to the outer side of the cooling fin (402), the left end and the right end of the square hole tube (403) are fixedly connected with the branch tube (205), the right end of the flue gas square tube (4) is fixedly connected with the vertical square tube (404), and the ammonia tube (405) is fixedly connected to the inside of the vertical square tube (404); perpendicular side pipe (404) right-hand member fixedly connected with denitration pipe (5), denitration pipe (5) front side facade department fixedly connected with electric telescopic handle (501), electric telescopic handle (501) telescopic section fixedly connected with exhaust pipe (502), the bottom fixedly connected with shower nozzle of exhaust pipe (502) left and right sides, exhaust pipe (502) and denitration pipe (5) sliding connection, denitration pipe (5) right side fixedly connected with ultrasonic transducer (503), inside fixedly connected with catalytic sieve (504) of denitration pipe (5), denitration pipe (5) right side fixedly connected with dust remover (505).
2. The energy-saving and environment-friendly boiler flue gas desulfurization and denitrification device as set forth in claim 1, wherein: the top of the bottom plate (1) is fixedly connected with a stirrer (6), an output pipeline of the transmission pump A (201) is positioned above the stirrer (6), and the right side of the bottom of the stirrer (6) is fixedly connected with a transmission pump C (601).
3. The energy-saving and environment-friendly boiler flue gas desulfurization and denitrification device as set forth in claim 1, wherein: the right end of the dust remover (505) is fixedly connected with a desulfurization pipe (7), and the inner side of the desulfurization pipe (7) is fixedly connected with a demister (701).
4. The energy-saving and environment-friendly boiler flue gas desulfurization and denitrification device as set forth in claim 3, wherein: the inside of the desulfurization pipe (7) is fixedly connected with a spraying pipe (702), and the spraying pipe (702) is fixedly connected with an oxygen therapy pipe (304).
5. The energy-saving and environment-friendly boiler flue gas desulfurization and denitrification device as set forth in claim 3, wherein: the top of the desulfurization pipe (7) is fixedly connected with an exhaust pipe (703), the inner side of the desulfurization pipe (7) is fixedly connected with a spray pipe (704), the right side of the top of the bottom plate (1) is fixedly connected with a sedimentation tank (8), and the right side of the sedimentation tank (8) is fixedly connected with a circulating tank (801).
6. The energy-saving and environment-friendly boiler flue gas desulfurization and denitrification device as set forth in claim 5, wherein: a filter screen is arranged between the sedimentation tank (8) and the circulating tank (801), the top of the circulating tank (801) is fixedly connected with a transmission pump D (802), and an output pipeline of the transmission pump D (802) is connected with a spray pipe (704).
7. The energy-saving and environment-friendly boiler flue gas desulfurization and denitrification device as set forth in claim 5, wherein: the top of the circulating pool (801) is fixedly connected with a transmission pump E (803), the right side of the circulating pool (801) is fixedly connected with a clarifier (804), the clarifier (804) is connected with the inside of the circulating pool (801) through a pipeline, an input pipeline of the transmission pump E (803) is connected with the inside of the sedimentation tank (8), and an output pipeline of the transmission pump C (601) is connected with the inside of the sedimentation tank (8).
CN202310803607.2A 2023-07-03 2023-07-03 Energy-saving and environment-friendly device for desulfurizing and denitrating boiler flue gas Active CN116920612B (en)

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CN113058412A (en) * 2021-03-25 2021-07-02 洛南环亚源铜业有限公司 Waste gas treatment process and treatment device thereof
CN113877416A (en) * 2021-10-28 2022-01-04 浙江天翔环保设备有限公司 Boiler flue gas desulfurization and denitrification device
CN113941373A (en) * 2021-10-28 2022-01-18 盐城工学院 Ceramic filter tube lays denitration catalyst and soaks structure

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007140261A2 (en) * 2006-05-24 2007-12-06 Jupiter Oxygen Corporation Integrated capture of fossil fuel gas pollutants including co2 with energy recovery
WO2010011008A1 (en) * 2008-07-25 2010-01-28 Kim Jongin Apparatus for removing air pollutants
CN203061060U (en) * 2012-11-29 2013-07-17 王漫 Ammonia-method desulfurization and denitration integrated device
CN105268384A (en) * 2015-11-26 2016-01-27 华北水利水电大学 Process equipment for preparing gypsum
CN206642581U (en) * 2016-11-23 2017-11-17 东莞市东燃热能科技有限公司 A kind of equipment for denitrifying flue gas for increasing denitration efficiency and avoiding catalysis deficiency
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CN211462731U (en) * 2019-11-28 2020-09-11 中冶京诚工程技术有限公司 Flue gas catalytic oxidation denitrification facility
CN213529185U (en) * 2020-08-18 2021-06-25 马美红 Denitration tower spray set of multi-angle
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CN113941373A (en) * 2021-10-28 2022-01-18 盐城工学院 Ceramic filter tube lays denitration catalyst and soaks structure

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