CN111603918B - Flue gas desulfurization and denitrification treatment method for coal-fired power plant - Google Patents
Flue gas desulfurization and denitrification treatment method for coal-fired power plant Download PDFInfo
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- CN111603918B CN111603918B CN202010518853.XA CN202010518853A CN111603918B CN 111603918 B CN111603918 B CN 111603918B CN 202010518853 A CN202010518853 A CN 202010518853A CN 111603918 B CN111603918 B CN 111603918B
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
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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
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
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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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Abstract
The invention relates to a desulfurization and denitrification treatment method for flue gas of a coal-fired power plant, which comprises a workbench, a collecting device and a treatment device, wherein the collecting device is fixedly arranged at the upper end of the workbench, the treatment device is fixedly arranged at the upper end of the collecting device, and comprises a treatment tank, an air inlet pipe, a filter frame, a feed pipe, a motor, a stirring frame and a valve.
Description
Technical Field
The invention relates to the technical field of flue gas treatment of power plants, in particular to a flue gas desulfurization and denitrification treatment method for a coal-fired power plant.
Background
Coal occupies a proportion exceeding seven in the energy structure of China, and the fire coal can generate a series of atmospheric pollutants such as sulfur dioxide and nitrogen oxide, and further causes environmental problems such as acid rain and photochemical smog, and the coal consumption of a thermal power plant occupies a great proportion in the industrial coal consumption of China, so the pollution caused by the fire coal is very serious, and therefore, the national environmental department requires that newly-built coal-fired units must be synchronously constructed with desulfurization and denitrification facilities to improve the environmental pollution of the power plant.
In the process of carrying out desulfurization and denitrification treatment on flue gas, due to the physical and chemical structure limitations of the flue gas, the following problems exist in the actual operation process:
(1) traditional flue gas desulfurization denitration treatment facility is carrying out the in-process of handling to the flue gas, need carry out the primary filtration to the flue gas through handling, and it is extremely easy to produce solid particle on the filter part surface and adhere to and pile up, extremely easily causes the life reduction of filter part to make the filter part need high frequency to change, thereby lead to the processing cost to improve.
(2) Traditional flue gas desulfurization denitration treatment facility is carrying out the in-process of handling to the flue gas, need filter the liquid after the reaction, very easily because of filter surface precipitate is more to lead to the filter to be blockked up, finally influence the filtration quality.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a flue gas desulfurization and denitrification treatment method for a coal-fired power plant.
The technical scheme adopted by the invention to solve the technical problem is as follows: the utility model provides a coal fired power plant flue gas desulfurization denitration treatment method, it has used a coal fired power plant flue gas desulfurization denitration treatment facility, and this coal fired power plant flue gas desulfurization denitration treatment facility includes workstation, collection device and processing apparatus, and the concrete method when adopting above-mentioned coal fired power plant flue gas desulfurization denitration treatment facility to carry out the SOx/NOx control to the flue gas is as follows:
s1, introducing gas: introducing the flue gas into equipment, cooling and filtering, separating solid particle impurities in the cooled flue gas from the flue gas, and collecting the solid particle impurities;
s2, process gas: reacting the gas with a material reagent in the equipment to enable sulfur in the gas to chemically react with the nitrate so as to achieve the purpose of removing the sulfur and the nitrate in the gas;
s3, filtering gas: after the gas and the reagent react, solid particle impurities are easily generated, and the solid particle impurities generated after the reaction are removed through equipment;
s4, collecting solid: discharging the filtered reaction liquid out of the equipment, and collecting solid particle impurities on the surface of the filtering part;
the upper end of the workbench is fixedly provided with a collecting device, and the upper end of the collecting device is fixedly provided with a processing device;
the collecting device comprises a collecting box, a rotating rod, a filtering plate, a connecting long plate, a control rod, an electric push rod, a cleaning plate and a perfusion tube, wherein the collecting box is fixedly arranged at the upper end of the workbench, the upper end of the collecting box is uniformly connected with the rotating rod in a sliding fit manner, the filtering plate is fixedly arranged on the rotating rod, a cylindrical rod is fixedly arranged at the right end of the rotating rod, the connecting long plate is fixedly arranged at the tail end of the cylindrical rod through a pin shaft, the control rod is fixedly arranged at the right end of the middle part of the connecting long plate, a rectangular groove is formed in the left side of the collecting box, the electric push rod is fixedly arranged at the right end of; the reaction liquid after filtering is collected through collecting the box, through the motion of dwang control filter, filters the reaction liquid through the filter, cooperatees through connecting long board and control lever to reach the purpose of carrying out the motion simultaneously through all filters of control lever control, clear up the filter lower surface through electric putter control clearance board motion, will transport through the reaction liquid after filtering through the transfer line.
The treatment device comprises a treatment tank, an air inlet pipe, a filter frame, an inlet pipe, a motor, a stirring frame and a valve, wherein the upper end of the collection box is fixedly provided with the treatment tank, a glass cylinder is fixedly arranged in the treatment tank, the left end surface of the upper side of the treatment tank is fixedly provided with the air inlet pipe, the outer surface of the left side of the air inlet pipe is provided with a glass tube, the upper end of the left side of the glass tube is provided with the inlet pipe, the lower end of the right side of the glass tube is provided with an outlet pipe, the left side of the air inlet pipe is provided with the filter frame, the upper end surface of the right side of the treatment tank is fixedly provided with the inlet pipe, the front end of the inlet; through the reaction range of handling jar control flue gas, prevent through the glass section of thick bamboo that the flue gas and mixed liquid from producing the corruption to the treatment jar inner wall, the motion range through the intake pipe restriction flue gas, water through the glass intraductal is to cooling down with the flue gas, rivers to the inlet pipe in the shutoff valve control outlet pipe through the outlet pipe, thereby mix the composition concentration that changes reagent with reagent mutually, filter the flue gas through the filter frame, make solid impurity and flue gas separation wherein, let in reaction reagent through the inlet pipe to handling jar, drive the motion of agitator through the motor, thereby make mixed liquid stirring, in order to reach the abundant mesh of its reaction, it filters to flow downwards through valve control reaction liquid.
The filter frame comprises a positioning ring, a scraper blade, a baffle plate, bristles, a filter circular plate, a push plate and a rectangular frame, wherein the positioning ring is fixedly arranged on the left side and the right side of the inner wall on the left side of the air inlet pipe, the scraper blade is fixedly arranged on the right side of the lower end of the left positioning ring, the inclined bristles are uniformly and fixedly arranged at the upper end of the scraper blade, the baffle plate is fixedly arranged at the left end of the lower side of the left positioning ring, the filter circular plate is connected at the right end of the left positioning ring in a sliding fit manner, the push plate is fixedly arranged at the upper end of the filter circular plate, the right end of the filter circular plate is connected with the right positioning ring in a sliding fit manner, an arc-shaped through hole with the same cross section size as the arc-shaped through hole on the, the lower end of the air inlet pipe is fixedly provided with a rectangular frame; carry on spacingly to filtering the plectane through the position ring, strike off through the impurity of scraper blade to filtering the plectane surface, prevent through the baffle that the scraper blade is at the in-process of striking off impurity, impurity is because the power that receives is great, thereby move to the baffle left side, lead to influencing the collection of impurity, further clear up filtering the impurity on plectane surface through the brush hair, in order to reach the purpose of thoroughly clearing up filtering the impurity name on plectane surface, through the vertical displacement of push pedal control filtration plectane, restrict filtering the movement track of plectane through rectangular frame, restrict the movement track of impurity simultaneously.
As a preferred technical scheme of the invention, the lower end of the workbench is provided with a quadrangular frustum pyramid-shaped through hole, and the lower end of the quadrangular frustum pyramid-shaped through hole is clamped with a square box; impurity after making the filtration through four arris platform shape through-holes drops to square box, collects impurity through square box.
According to a preferred technical scheme, the collecting box is a rectangular box, the upper end of the rectangular box is provided with a cylindrical box, a glass plate is fixedly arranged on the inner surface of the collecting box, the upper end of the rectangular box is connected with a rotating rod in a sliding fit manner, the lower end of the rectangular box is connected with a rectangular plate in a sliding fit manner, the upper end of the rectangular plate is provided with the glass plate, the left side of the rectangular plate is connected with a threaded rod in a sliding fit manner, the left side of the threaded rod is connected with a supporting plate in a threaded connection manner, and the right end of the supporting plate; be the rectangle box and the processing jar fixed connection of cylinder box through the upper end to prevent to have the gap between processing jar and the collection box, can not disturb the motion of filter simultaneously, prevent through the glass board that reaction liquid from producing the corruption to collecting the box inner wall, cooperate with the rectangle board through the threaded rod and control respectively through the transportation and the collection of reaction liquid after filtering and impurity after filtering, support the threaded rod through the backup pad.
As a preferred technical scheme of the invention, the filter plate is formed by fixedly connecting an upper rectangular plate and a lower rectangular plate, bowl-shaped through holes are uniformly formed in the rectangular plates at the upper end and the lower end, and the bowl-shaped through holes formed in the rectangular plates at the upper end and the lower end are symmetrical; through two upper and lower rectangular plates in order to reach the purpose that can clear up the impurity on the filter to the filter lower extreme, clear up the filter lower extreme simultaneously to thereby prevent that impurity from getting into the filter middle part owing to receive the effect downstream of gravity at the in-process of clearance, causing the filter to block up, thereby influence the filter effect of filter.
As a preferred technical scheme, the cleaning plate comprises a rectangular long plate, a cleaning brush, a small support, a cylindrical spring and a rectangular scraper blade, the rectangular long plate is fixedly installed at the right end of the electric push rod, the cleaning brush is fixedly installed at the upper end of the right side of the rectangular long plate, the small support is uniformly and fixedly installed at the upper end of the left side of the rectangular long plate, the cylindrical spring is sleeved outside the small support, the lower end of the cylindrical spring is fixedly connected with the rectangular long plate, the rectangular scraper blade is fixedly installed at the upper end of the cylindrical spring, and the upper end of the small support is connected with the lower end of the rectangular scraper blade in a; support fixed cleaning brush and little support through the long board of rectangle, clear up the filter lower surface through cleaning brush, support the location to cylindrical spring through little support, terminal surface in close contact with under elasticity messenger rectangle scraper blade and the filter through cylindrical spring to further clear up impurity.
As a preferred technical scheme of the invention, the right end of the air inlet pipe and the lower end of the feed pipe are both fixedly provided with a one-way valve; the movement directions of the smoke and the reagent are controlled by the one-way valve, so that the smoke is prevented from entering air through the air inlet pipe and the feeding pipe.
According to a preferred technical scheme, the stirring frame comprises a positioning column, a stirring rod and an inclined plate, the lower end of the motor is fixedly provided with the positioning column, the outer surface of the positioning column is uniformly and fixedly provided with the stirring rod along the circumferential direction, and the lower end of the stirring rod is uniformly and fixedly provided with the inclined plate along the circumferential direction; carry out fixed stay to the puddler through the reference column, carry out fixed stay to the hang plate through the puddler, increase the scope of stirring through the hang plate to reach the purpose of stirring completely to mixed liquid.
As a preferred technical scheme of the invention, the outer surface of the filtering circular plate is fixedly provided with a sealing rubber ring, the lower end of the filtering circular plate is fixedly provided with a spring, and the lower end of the spring is fixedly connected with the lower end of the rectangular frame; the outer surface of the filtering circular plate is sealed by the sealing rubber ring so as to prevent smoke from flowing into air through the filtering circular plate, the horizontal displacement of the filtering circular plate is limited by the spring so as to align the filtering circular plate with the positioning ring, and meanwhile, the spring can restore the filtering circular plate which is not stressed to the original position.
As a preferred technical scheme of the invention, a rectangular thick plate is fixedly arranged at the right end of the rectangular frame, the upper end of the rectangular thick plate is fixedly connected with a spring, and a rectangular long box is clamped at the lower end of the rectangular frame; fix the spring lower extreme through the rectangle thick plate, collect impurity through the long box of rectangle, the joint is convenient in clearing up impurity simultaneously.
Compared with the prior art, the invention has the following advantages:
1. the invention provides a flue gas desulfurization and denitration treatment method for a coal-fired power plant, which is characterized in that flue gas is primarily filtered through a treatment device, and a filtering part is cleaned, so that the reduction of the service life and the use effect of the filtering part due to excessive accumulation of impurities on the surface of the filtering part is prevented, the flue gas and a reagent are completely reacted, reacted liquid is filtered through a collection device, and the surface of a filter plate is cleaned, so that the filter plate is prevented from being blocked due to excessive accumulation of precipitates on the surface of the filter plate, and the filter effect is prevented from being influenced.
2. According to the invention, through the arranged processing device, the filtering circular plate is limited through the positioning ring, impurities on the surface of the filtering circular plate are scraped through the scraper, the impurities are prevented from moving to the left side of the baffle due to large force applied to the impurities in the process of scraping the impurities by the scraper through the baffle, the collection of the impurities is influenced, the impurities on the surface of the filtering circular plate are further cleaned through the bristles, the purpose of thoroughly cleaning the impurities on the surface of the filtering circular plate is achieved, the vertical displacement of the filtering circular plate is controlled through the push plate, the motion track of the filtering circular plate is limited through the rectangular frame, and meanwhile, the motion track of the impurities is limited.
3. According to the invention, through the arranged processing device, the outer surface of the filtering circular plate is sealed by the sealing rubber ring so as to prevent smoke from flowing into air through the filtering circular plate, the horizontal displacement of the filtering circular plate is limited by the spring so as to align the filtering circular plate with the positioning ring, and meanwhile, the spring can restore the filtering circular plate without pressure to the original position
4. According to the invention, through the arranged collecting device, the purpose that the lower end of the filter plate is cleaned by the upper rectangular plate and the lower rectangular plate, namely the impurities on the filter plate can be cleaned, and meanwhile, the lower end of the filter plate is cleaned, so that the impurities are prevented from moving downwards due to the action of gravity in the cleaning process and entering the middle part of the filter plate to cause the blockage of the filter plate, and the filtering effect of the filter plate is further influenced.
5. According to the invention, through the arranged collecting device, the rectangular long plate supports and fixes the cleaning brush and the small support, the lower surface of the filter plate is cleaned through the cleaning brush, the small support supports and positions the cylindrical spring, and the rectangular scraper is in close contact with the lower end surface of the filter plate through the elasticity of the cylindrical spring, so that impurities are further cleaned.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic workflow diagram of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic plan view of the present invention in front elevation;
FIG. 4 is a schematic of the left side plan view of the present invention;
FIG. 5 is a schematic top plan view of the present invention;
FIG. 6 is a schematic plan view of the cleaning plate of the present invention;
fig. 7 is a schematic plan view of the filter stand of the present invention.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further explained with reference to fig. 1 to 7.
A coal-fired power plant flue gas desulfurization and denitration treatment method uses a coal-fired power plant flue gas desulfurization and denitration treatment device, the coal-fired power plant flue gas desulfurization and denitration treatment device comprises a workbench 1, a collecting device 2 and a treatment device 3, and the specific method when the coal-fired power plant flue gas desulfurization and denitration treatment device is adopted to carry out desulfurization and denitration on flue gas is as follows:
s1, introducing gas: introducing the flue gas into equipment, cooling and filtering, separating solid particle impurities in the cooled flue gas from the flue gas, and collecting the solid particle impurities;
s2, process gas: reacting the gas with a material reagent in the equipment to enable sulfur in the gas to chemically react with the nitrate so as to achieve the purpose of removing the sulfur and the nitrate in the gas;
s3, filtering gas: after the gas and the reagent react, solid particle impurities are easily generated, and the solid particle impurities generated after the reaction are removed through equipment;
s4, collecting solid: discharging the filtered reaction liquid out of the equipment, and collecting solid particle impurities on the surface of the filtering part;
the upper end of the workbench 1 is fixedly provided with a collecting device 2, and the upper end of the collecting device 2 is fixedly provided with a processing device 3;
the collecting device 2 comprises a collecting box 21, a rotating rod 22, a filter plate 23, a connecting long plate 24, a control rod 25, an electric push rod 26, a cleaning plate 27 and an infusion tube 28, the upper end of the workbench 1 is fixedly provided with the collecting box 21, the upper end of the collecting box 21 is uniformly connected with the rotating rod 22 in a sliding fit manner, the filter plate 23 is fixedly arranged on the rotating rod 22, the right end of the rotating rod 22 is fixedly provided with a cylindrical rod, the tail end of the cylindrical rod is fixedly provided with the connecting long plate 24 through a pin shaft, the control rod 25 is fixedly arranged at the right end of the middle part of the connecting long plate 24, the left side of the collecting box 21 is provided with a rectangular groove, the right end of the rectangular groove is fixedly provided with the electric push rod 26, the;
the collecting box 21 is a rectangular box with a cylindrical box at the upper end, a glass plate is fixedly arranged on the inner surface of the collecting box 21, the upper end of the rectangular box is connected with the rotating rod 22 in a sliding fit manner, the lower end of the rectangular box is connected with the rectangular plate in a sliding fit manner, the upper end of the rectangular plate is provided with the glass plate, the left side of the rectangular plate is connected with a threaded rod in a sliding fit manner, the left side of the threaded rod is connected with a supporting plate in a threaded connection manner, and the right end of the supporting plate is fixedly connected with the;
the filter plate 23 is formed by fixedly connecting an upper rectangular plate and a lower rectangular plate, bowl-shaped through holes are uniformly formed in the rectangular plates at the upper end and the lower end, and the bowl-shaped through holes formed in the rectangular plates at the upper end and the lower end are symmetrical;
the cleaning plate 27 comprises a rectangular long plate 271, a cleaning brush 272, a small support 273, a cylindrical spring 274 and a rectangular scraping plate 275, the rectangular long plate 271 is fixedly installed at the right end of the electric push rod 26, the cleaning brush 272 is fixedly installed at the upper end of the right side of the rectangular long plate 271, the small support 273 is uniformly and fixedly installed at the upper end of the left side of the rectangular long plate 271, the cylindrical spring 274 is sleeved outside the small support 273, the lower end of the cylindrical spring 274 is fixedly connected with the rectangular long plate 271, the rectangular scraping plate 275 is fixedly installed at the upper end of the cylindrical spring 274, and the upper end of the small support 273 is connected with the lower end of the rectangular scraping plate;
the filtered reaction liquid is collected through the collection box 21, the motion of the filter plate 23 is controlled through the rotating rod 22, the reaction liquid is filtered through the filter plate 23, the long connecting plate 24 is matched with the control rod 25, the purpose that all the filter plates 23 are controlled by the control rod 25 to move simultaneously is achieved, the cleaning plate 27 is controlled by the electric push rod 26 to move, the lower surface of the filter plate 23 is cleaned through the cleaning plate 27, and the filtered reaction liquid is transported through the infusion tube 28;
the rectangular box with the cylindrical box at the upper end is fixedly connected with the processing tank 31, so that a gap is prevented from being formed between the processing tank 31 and the collecting box 21, the movement of the filter plate 23 is not interfered, the inner wall of the collecting box 21 is prevented from being corroded by reaction liquid through a glass plate, the filtered reaction liquid and the filtered impurities are respectively controlled to be transported and collected through the matching of the threaded rod and the rectangular plate, and the threaded rod is supported through the supporting plate;
the purpose that the lower end of the filter plate 23 can be cleaned by cleaning the lower end of the filter plate 23 can be achieved by the upper rectangular plate and the lower rectangular plate, and meanwhile, the lower end of the filter plate 23 is cleaned, so that the impurities are prevented from moving downwards due to the action of gravity in the cleaning process and entering the middle of the filter plate 23 to block the filter plate 23, and the filtering effect of the filter plate 23 is influenced;
the fixed cleaning brush 272 and the small support 273 are supported by the rectangular long plate 271, the lower surface of the filter plate 23 is cleaned by the cleaning brush 272, the cylindrical spring 274 is supported and positioned by the small support 273, and the rectangular scraper 275 is in close contact with the lower end surface of the filter plate 23 by the elastic force of the cylindrical spring 274, so that impurities are further cleaned.
The treatment device 3 comprises a treatment tank 31, an air inlet pipe 32, a filter rack 33, a feed pipe 34, a motor 35, a stirring rack 36 and a valve 37, wherein the treatment tank 31 is fixedly arranged at the upper end of the collection box 21, a glass cylinder is fixedly arranged in the treatment tank 31, the air inlet pipe 32 is fixedly arranged on the left end surface of the upper side of the treatment tank 31, a glass pipe is arranged on the outer surface of the left side of the air inlet pipe 32, a water inlet pipe is arranged at the upper end of the left side of the glass pipe, a water outlet pipe is arranged at the lower end of the right side of the glass pipe, the filter rack 33 is arranged on the left side of the air inlet pipe 32, the feed pipe 34 is fixedly arranged on the upper end surface of the right side of the treatment tank 31, the front end of the feed pipe 34 is connected with the;
the right end of the air inlet pipe 32 and the lower end of the feed pipe 34 are both fixedly provided with a one-way valve;
the filter frame 33 comprises a positioning ring 331, a scraper 332, a baffle 333, bristles 334, a filter circular plate 335, a push plate 336 and a rectangular frame 337, wherein the positioning ring 331 is fixedly arranged on the left side and the right side of the inner wall of the left side of the air inlet pipe 32, the scraper 332 is fixedly arranged on the right side of the lower end of the positioning ring 331 on the left side, inclined bristles 334 are uniformly and fixedly arranged at the upper end of the scraper 332, the baffle 333 is fixedly arranged on the left side of the lower side of the positioning ring 331 on the left side, the filter circular plate 335 is connected to the right end of the positioning ring 331 on the left side in a sliding fit manner, the push plate 336 is fixedly arranged on the upper end of the filter circular plate 335, the right end of the filter circular plate 335 is connected to the positioning ring 331 on the right side in a sliding fit manner, an inverted L-shaped plate is fixedly arranged at the upper end of the circular plate, an arc-shaped through hole is formed in the lower end, located at the arc-shaped through hole, of the air inlet pipe 32, and a rectangular frame 337 is fixedly arranged at the lower end of the air inlet pipe 32;
a sealing rubber ring is fixedly arranged on the outer surface of the filtering circular plate 335, a spring is fixedly arranged at the lower end of the filtering circular plate 335, and the lower end of the spring is fixedly connected with the lower end of the rectangular frame 337;
a rectangular thick plate is fixedly arranged at the right end of the rectangular frame 337, the upper end of the rectangular thick plate is fixedly connected with a spring, and a rectangular long box is clamped at the lower end of the rectangular frame 337;
the stirring frame 36 comprises a positioning column 361, a stirring rod 362 and an inclined plate 363, the positioning column 361 is fixedly installed at the lower end of the motor 35, the stirring rod 362 is uniformly and fixedly installed on the outer surface of the positioning column 361 along the circumferential direction, and the inclined plate 363 is uniformly and fixedly installed at the lower end of the stirring rod 362 along the circumferential direction;
the reaction range of the flue gas is controlled by the treatment tank 31, the flue gas and the mixed liquid are prevented from corroding the inner wall of the treatment tank 31 by the glass cylinder, the movement range of the flue gas is limited by the air inlet pipe 32, the flue gas and the flue gas are cooled by water in the glass pipe, water in the water outlet pipe is controlled to flow to the feed pipe 34 by the shutoff valve of the water outlet pipe, so that the water is mixed with the reagent to change the component concentration of the reagent, the flue gas is filtered by the filter frame 33, solid impurities in the flue gas are separated from the flue gas, the reaction reagent is introduced into the treatment tank 31 by the feed pipe 34, the stirring frame 36 is driven by the motor 35 to move, so that the mixed liquid is uniformly stirred, the purpose of fully reacting is achieved, and the reaction liquid is;
the movement directions of the smoke and the reagent are controlled by a one-way valve, so that the smoke is prevented from entering air through the air inlet pipe 32 and the feed pipe 34;
the filtering circular plate 335 is limited by the positioning ring 331, impurities on the surface of the filtering circular plate 335 are scraped by the scraper 332, the baffle 333 prevents the impurities from being collected when the scraper 332 scrapes the impurities due to large force applied to the impurities, the impurities move to the left side of the baffle 333, the impurities on the surface of the filtering circular plate 335 are further cleaned by the bristles 334, the purpose of thoroughly cleaning the impurities on the surface of the filtering circular plate 335 is achieved, the vertical displacement of the filtering circular plate 335 is controlled by the push plate 336, the movement track of the filtering circular plate 335 is limited by the rectangular frame 337, and meanwhile, the movement track of the impurities is limited;
the outer surface of the filter disk 335 is sealed by a sealing rubber ring to prevent the flow of smoke into the air through the filter disk 335, the horizontal displacement of the filter disk 335 is limited by a spring to align it with the positioning ring 331, and the spring returns the filter disk 335, which is not under pressure, to its original position;
the lower end of the spring is fixed through the rectangular thick plate, impurities are collected through the rectangular long box, and meanwhile, the impurities are conveniently cleaned through clamping;
the stirring rod 362 is fixedly supported by the positioning column 361, the inclined plate 363 is fixedly supported by the stirring rod 362, and the stirring range is increased by the inclined plate 363, so that the purpose of completely stirring the mixed liquid is achieved.
The lower end of the workbench 1 is provided with a quadrangular frustum pyramid-shaped through hole, and the lower end of the quadrangular frustum pyramid-shaped through hole is clamped with a square box; the filtered impurities fall into the square box through the quadrangular frustum pyramid-shaped through holes, the impurities are collected through the square box,
the foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a coal fired power plant flue gas desulfurization denitration treatment method, it has used a coal fired power plant flue gas desulfurization denitration treatment facility, and this coal fired power plant flue gas desulfurization denitration treatment facility includes workstation (1), collection device (2) and processing apparatus (3), its characterized in that: the specific method for performing desulfurization and denitrification on the flue gas by adopting the flue gas desulfurization and denitrification treatment equipment for the coal-fired power plant is as follows:
s1, introducing gas: introducing the flue gas into equipment, cooling and filtering, separating solid particle impurities in the cooled flue gas from the flue gas, and collecting the solid particle impurities;
s2, process gas: reacting the gas with a material reagent in the equipment to enable sulfur in the gas to chemically react with the nitrate so as to achieve the purpose of removing the sulfur and the nitrate in the gas;
s3, filtering gas: after the gas and the reagent react, solid particle impurities are easily generated, and the solid particle impurities generated after the reaction are removed through equipment;
s4, collecting solid: discharging the filtered reaction liquid out of the equipment, and collecting solid particle impurities on the surface of the filtering part;
the upper end of the workbench (1) is fixedly provided with a collecting device (2), and the upper end of the collecting device (2) is fixedly provided with a processing device (3);
the collecting device (2) comprises a collecting box (21), a rotating rod (22), a filter plate (23), a connecting long plate (24), a control rod (25), an electric push rod (26), a cleaning plate (27) and a transfusion tube (28), the upper end of the workbench (1) is fixedly provided with a collection box (21), the upper end of the collection box (21) is uniformly connected with a rotating rod (22) in a sliding fit manner, the rotating rod (22) is fixedly provided with a filter plate (23), the right end of the rotating rod (22) is fixedly provided with a cylindrical rod, the tail end of the cylindrical rod is fixedly provided with a connecting long plate (24) through a pin shaft, the right end of the middle part of the connecting long plate (24) is fixedly provided with a control rod (25), the left side of the collection box (21) is provided with a rectangular groove, the right end of the rectangular groove is fixedly provided with an electric push rod (26), the right end of the electric push rod (26) is fixedly provided with a;
the treatment device (3) comprises a treatment tank (31), an air inlet pipe (32), a filter frame (33), an inlet pipe (34), a motor (35), a stirring frame (36) and a valve (37), the upper end of a collection box (21) is fixedly provided with the treatment tank (31), a glass cylinder is fixedly arranged in the treatment tank (31), the air inlet pipe (32) is fixedly arranged on the left end surface of the upper side of the treatment tank (31), a glass pipe is arranged on the outer surface of the left side of the air inlet pipe (32), an inlet pipe is arranged on the upper end of the left side of the glass pipe, a water outlet pipe is arranged at the lower end of the right side of the glass pipe, the filter frame (33) is arranged on the left side of the air inlet pipe (32), the inlet pipe (34) is fixedly arranged on the upper end surface of the right side of the treatment tank (31), the front end, an output shaft at the lower end of the motor (35) is fixedly provided with a stirring frame (36) through a coupler, and the lower end of the collecting box (21) is provided with a valve (37);
the filter frame (33) comprises positioning rings (331), scraping plates (332), baffles (333), bristles (334), filtering circular plates (335), push plates (336) and a rectangular frame (337), the left and right sides of the left inner wall of the air inlet pipe (32) are fixedly provided with the positioning rings (331), the right side of the lower end of the left positioning ring (331) is fixedly provided with the scraping plates (332), the upper ends of the scraping plates (332) are uniformly and fixedly provided with inclined bristles (334), the left end of the lower side of the left positioning ring (331) is fixedly provided with the baffles (333), the right end of the left positioning ring (331) is connected with the filtering circular plates (335) in a sliding fit manner, the upper ends of the filtering circular plates (335) are fixedly provided with the push plates (336), the right end of the filtering circular plates (335) is connected with the positioning rings (331) on the right side in a sliding fit manner, the, the arc through-hole with the same cross-sectional size of the arc through-hole on holding ring (331) is seted up to ring plate rear end, and the fixed shape board that falls L that is provided with in ring plate upper end, and arc through-hole has been seted up to intake pipe (32) lower extreme that is located arc through-hole lower extreme, and intake pipe (32) lower extreme fixed mounting has rectangular frame (337).
2. The desulfurization and denitrification treatment method for flue gas of a coal-fired power plant according to claim 1, characterized in that: the lower end of the workbench (1) is provided with a quadrangular frustum pyramid-shaped through hole, and a square box is clamped at the lower end of the quadrangular frustum pyramid-shaped through hole.
3. The desulfurization and denitrification treatment method for flue gas of a coal-fired power plant according to claim 1, characterized in that: collect box (21) and be provided with the rectangle box of cylinder box for the upper end, collect box (21) internal surface fixation and be provided with the glass board, rectangle box upper end is connected with dwang (22) with sliding fit's mode, and rectangle box lower extreme is connected with the rectangular plate with sliding fit's mode, and the rectangular plate upper end is provided with the glass board, and the rectangular plate left side is connected with the threaded rod with sliding fit's mode, and the threaded rod left side is connected with the backup pad with the threaded connection mode, backup pad right-hand member and collection box (21) left end fixed connection.
4. The desulfurization and denitrification treatment method for flue gas of a coal-fired power plant according to claim 1, characterized in that: the filter plate (23) is formed by fixedly connecting an upper rectangular plate and a lower rectangular plate, bowl-shaped through holes are uniformly formed in the rectangular plates at the upper end and the lower end, and the bowl-shaped through holes formed in the rectangular plates at the upper end and the lower end are symmetrical.
5. The desulfurization and denitrification treatment method for flue gas of a coal-fired power plant according to claim 1, characterized in that: the cleaning plate (27) comprises a rectangular long plate (271), a cleaning brush (272), a small support (273), a cylindrical spring (274) and a rectangular scraper (275), the right end of the electric push rod (26) is fixedly provided with the rectangular long plate (271), the upper end of the right side of the rectangular long plate (271) is fixedly provided with the cleaning brush (272), the upper end of the left side of the rectangular long plate (271) is uniformly and fixedly provided with the small support (273), the cylindrical spring (274) is sleeved outside the small support (273), the lower end of the cylindrical spring (274) is fixedly connected with the rectangular long plate (271), the upper end of the cylindrical spring (274) is fixedly provided with the rectangular scraper (275), and the upper end of the small support (273) is connected with the lower end of the rectangular scraper (275) in.
6. The desulfurization and denitrification treatment method for flue gas of a coal-fired power plant according to claim 1, characterized in that: the lower extreme of intake pipe (32) right-hand member and inlet pipe (34) all fixed mounting have the check valve.
7. The desulfurization and denitrification treatment method for flue gas of a coal-fired power plant according to claim 1, characterized in that: the stirring frame (36) comprises a positioning column (361), a stirring rod (362) and an inclined plate (363), the positioning column (361) is fixedly installed at the lower end of the motor (35), the stirring rod (362) is uniformly and fixedly installed on the outer surface of the positioning column (361) along the circumferential direction, and the inclined plate (363) is uniformly and fixedly installed at the lower end of the stirring rod (362) along the circumferential direction.
8. The desulfurization and denitrification treatment method for flue gas of a coal-fired power plant according to claim 1, characterized in that: the outer surface of the filtering circular plate (335) is fixedly provided with a sealing rubber ring, the lower end of the filtering circular plate (335) is fixedly provided with a spring, and the lower end of the spring is fixedly connected with the lower end of the rectangular frame (337).
9. The desulfurization and denitrification treatment method for flue gas of a coal-fired power plant according to claim 1, characterized in that: the rectangular frame (337) right-hand member is fixed and is provided with the rectangle thick plate, rectangle thick plate upper end and spring fixed connection, and rectangular frame (337) lower extreme joint has the long box of rectangle.
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| CN112212730B (en) * | 2020-10-13 | 2021-05-07 | 江西宜春京能热电有限责任公司 | Energy-saving treatment method for recovering heat discharged by flue gas |
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