CN114485197B - Coke oven flue gas treatment pipeline for dust removal, desulfurization and denitrification - Google Patents
Coke oven flue gas treatment pipeline for dust removal, desulfurization and denitrification Download PDFInfo
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- CN114485197B CN114485197B CN202210392389.3A CN202210392389A CN114485197B CN 114485197 B CN114485197 B CN 114485197B CN 202210392389 A CN202210392389 A CN 202210392389A CN 114485197 B CN114485197 B CN 114485197B
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- chimney
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
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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
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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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
- B01D46/42—Auxiliary equipment or operation thereof
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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
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4218—Influencing the heat transfer which act passively, e.g. isolations, heat sinks, cooling ribs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention relates to the technical field of coke oven flue gas treatment pipelines, in particular to a coke oven flue gas treatment pipeline for dust removal, desulfurization and denitrification, which comprises an outer pipeline, wherein a cooling mechanism for cooling flue gas is arranged on the outer pipeline; the internally mounted of outer pipeline has cooling body, and installs the clearance mechanism that carries out the clearance to the outside ammonium bisulfate that condenses of cooling body on the outer pipeline, when ammonium bisulfate is more on cooling body, can start clearance mechanism, realizes clearing up the granule of ammonium bisulfate on the cooling body, improves the heat transfer effect of flue gas, does benefit to SOx/NOx control.
Description
Technical Field
The invention relates to the technical field of coke oven flue gas treatment pipelines, in particular to a coke oven flue gas treatment pipeline for dust removal, desulfurization and denitrification.
Background
Coking ovens, a furnace usually built of refractory bricks and refractory blocks, for carbonizing coal to produce coke, ovens for coking coal are the main thermal equipment for coking. The modern coke oven is a horizontal chamber type coke oven which mainly aims at producing metallurgical coke and can recover coking chemical products, is composed of an oven body and accessory equipment, can be used for dedusting, desulfurizing and denitrifying in the industrial industry, and needs a special flue gas treatment pipeline to treat and discharge flue gas when the coke oven works.
However, when the existing coke oven flue gas treatment pipeline for dust removal, desulfurization and denitrification discharges smoke, cooling equipment is firstly installed in the pipeline, the smoke is cooled through the cooling pipeline in the pipeline when being discharged, ammonium bisulfate in the cooled smoke is condensed and then adhered to a heat exchange pipe, the smoke is discharged through a chimney up to the standard, ammonium bisulfate is condensed on the surface of the cooling pipeline when the cooling pipeline cools the smoke for a long time, a mechanism for cleaning the ammonium bisulfate on the surface of the cooling pipeline is not arranged on the smoke pipeline, the ammonium bisulfate can be condensed into solid particles again in the process of being discharged into the chimney along with the smoke, the particles often exceed the standard, and the environment-friendly risk is faced; and a mechanism for cleaning filter screen attachments is not arranged on the dust removal, desulfurization and denitrification in the chimney, so that filter holes are easily blocked, and the flue gas emission after treatment is not facilitated.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a coke oven flue gas treatment pipeline for dust removal, desulfurization and denitrification.
The technical scheme adopted by the invention for solving the technical problems is as follows: a coke oven flue gas treatment pipeline for dust removal, desulfurization and denitrification comprises an outer pipeline, wherein a cooling mechanism for cooling flue gas is arranged on the outer pipeline, a cleaning mechanism for cleaning ammonium bisulfate condensed on the cooling mechanism is arranged on the outer pipeline, the cleaning mechanism is abutted against the cooling mechanism, a smoke exhaust mechanism is arranged on the outer pipeline, a dust scraping mechanism for filtering particulate matters in the flue gas is arranged on the smoke exhaust mechanism, and a collecting mechanism for collecting dust is arranged on the dust scraping mechanism;
the cooling mechanism comprises an air inlet pipe and an air outlet pipe, the air inlet pipe and the air outlet pipe are arranged on the outer pipeline, a cooling pipe connected with the air inlet pipe and the air outlet pipe is arranged in the outer pipeline, the cleaning mechanism comprises a motor, the outer pipeline is provided with a motor, the motor is connected with a screw rod through a coupler, the screw rod is in threaded connection with a connecting plate in sliding connection with the outer pipeline, a right scraper abutting against the side wall of the cooling pipe is fixedly connected on the connecting plate, a plurality of clamping plates are fixed at both ends of the right scraper, the side wall of the cooling pipe is abutted with a left scraper, the clamping plate is inserted into a hole at the end part of the left scraper, the left scraper is connected with a plurality of top plates in a sliding way, the top plates are connected with a handle, the bottoms of the top plates are fixedly connected with clamping columns, the clamping column is buckled with the hole on the clamping plate, and a spring is clamped between one of the top plate and the left scraper.
Specifically, the left scraper and the right scraper are equal in size and shape, and the cross section of the left scraper is of a U-shaped structure.
Specifically, the cleaning mechanism further comprises a protective cover, and the motor is provided with the protective cover.
Specifically, the air outlet pipe is obliquely arranged, and the cooling pipe is distributed in the outer pipeline in an S shape.
Specifically, the mechanism of discharging fume includes the chimney, install the chimney on the outer pipeline, the chimney inner wall rotates and has rotated the circle, the top fixedly connected with spacing collar of circle rotates, annular array has seted up a plurality of spouts on the spacing collar, annular array has seted up a plurality of kerfs relative with the spout on the chimney, it has the ejector pin to slide on spout and the kerve, the ejector pin contradicts with the spacing collar, and is a plurality of fixedly connected with top shell on the ejector pin, the protection casing is fixed in on the chimney.
Specifically, the cross section of the ejector rod is of an L-shaped structure, and the top shell is of a circular truncated cone-shaped structure.
Specifically, scrape dirt mechanism and include the filter screen, the filter screen is installed to the inner wall of chimney, filter screen center department rotates and is connected with the pivot, two doctor-bars of relative fixedly connected with in the pivot, one of them the bottom of doctor-bar is contradicted with the surface of filter screen, another the top of doctor-bar is contradicted with the bottom surface of filter screen.
Specifically, scrape dirt mechanism still includes the compression leg, is located the bottom fixedly connected with compression leg of the doctor-bar at filter screen top, the compression leg is contradicted with the filter screen surface.
Specifically, collect the mechanism and include the slide rail, the bottom fixedly connected with of pivot has the slide rail parallel with the doctor-bar, sliding connection has the collection to fight on the slide rail, the collection is fought and is located the bottom of doctor-bar, the lateral wall of chimney is fixed with the guard plate, sliding connection has the apron of arc structure between guard plate and the chimney, set up on the chimney lateral wall and collect the operation mouth that the fill corresponds.
Specifically, the collecting mechanism further comprises a sealing gasket, and the sealing gasket abutting against the cover plate is bonded to the side wall of the chimney.
The invention has the beneficial effects that:
(1) according to the coke oven flue gas treatment pipeline for dust removal, desulfurization and denitrification, disclosed by the invention, the cooling mechanism is arranged inside the outer pipeline, and the cleaning mechanism for cleaning the ammonium bisulfate condensed outside the cooling mechanism is arranged on the outer pipeline; namely: when the coke oven is used for desulfurization and denitrification operation, the outer pipeline is connected with the coke oven, smoke generated by the coke oven is discharged to the inside of the outer pipeline, the air inlet pipe on the cooling pipe is connected with the cold air pipeline, cold air enters the inside of the cooling pipe, the smoke discharged by the coke oven is cooled by the cooling pipe, the cooling pipe is in an S-shaped trend, so that the retention time of the cold air in the cooling pipe is longer, the smoke is favorably cooled, the cooled smoke is discharged into the chimney, the cold air is discharged from the air outlet pipe, when more ammonium bisulfate is condensed on the outer wall of the cooling pipe with a rectangular side surface, a worker starts the motor, the protection of the motor is realized by the protective cover, after the motor is started, the screw rod rotation is realized, further, due to the sliding connection between the connecting plate and the outer pipeline, the screw rod drives the connecting plate to ascend and descend on the inner wall of the outer pipeline, when the connecting plate ascends and descends, realized that left scraper blade and right scraper blade strike off the ammonium bisulfate of cooling tube lateral wall, do benefit to the cooling of the inside flue gas of outer pipeline, the furnace inside washing of coke oven can be followed to the ammonium bisulfate who strikes off, so when needing to overhaul left scraper blade and right scraper blade, guarantee that left scraper blade and right scraper blade are in the lower limit position of cooling tube, the staff promotes the handle to the top direction of cooling tube, a plurality of roofs have been driven and have been moved together, the spring opens this moment, furthermore, the hole on the cardboard is followed to the card post withdraws from, thereby the dismantlement of left scraper blade and right scraper blade has been realized, do benefit to the maintenance to left scraper blade and right scraper blade.
(2) According to the coke oven flue gas treatment pipeline for dust removal, desulfurization and denitrification, the dust scraping mechanism is arranged on the smoke exhaust mechanism, and can be rotated when the filter assembly is blocked, so that dust on the filter assembly can be cleaned, the filter assembly is prevented from being blocked, the smoke exhaust is facilitated, the cleaned dust falls onto the collecting mechanism to be collected, the protection assembly of the smoke exhaust mechanism is opened to clean the dust, and the operation is simple; namely: the smoke is discharged into the chimney and then filtered by the filter screen, so that larger dust and particles in the smoke are filtered by the filter screen, when more dust particles are on the filter screen, a worker can directly rotate the rotating shaft on the filter screen, two scraping pieces on the rotating shaft can rotate simultaneously, when the scraping pieces rotate, the dust particles on the surface and the bottom surface of the filter screen are scraped, the scraped dust particles fall onto the collecting hopper on the sliding rail, when the scraping pieces on the surface of the filter screen rotate, the pressing column can crush the dust with larger particles on the surface of the filter screen, falling collection is facilitated, when the dust in the collecting hopper is cleaned, the cover plate between the sliding protection plate and the chimney is slid, further, the sliding rail corresponds to the operation port by rotating the rotating shaft, the dust on the collecting hopper can be cleaned by taking out the collecting hopper on the sliding rail from the operation port, the operation is simple, after the cleaning is finished, the collecting hopper slides to the sliding rail, the cover plate is closed, the sealing effect of the cover plate is increased by the sealing gasket, and smoke leakage is avoided.
(3) According to the coke oven flue gas treatment pipeline for dust removal, desulfurization and denitrification, the protection component on the smoke exhaust mechanism can be mounted and dismounted in a rotating mode, so that the dust scraping mechanism and the collecting mechanism can be conveniently overhauled; namely: cooled flue gas is discharged from the outer pipeline to the interior of the chimney and finally discharged from the limiting ring, the top shell on the ejector rod protects the limiting ring and the chimney, rainwater is prevented from entering the interior of the coke oven, the ejector rod and the top shell can be disassembled when the filter screen is cleaned or repaired, the limiting ring in the chimney is rotated when the top shell is disassembled, the sliding groove in the side wall of the limiting ring corresponds to the bottom groove in the chimney, the ejector rod is pulled in the direction deviating from the top direction of the chimney, the plurality of ejector rods are slid from the sliding groove, the ejector rod and the top shell are disassembled, the filter screen is convenient to repair, when the ejector rod is installed, the ejector rod slides onto the bottom groove in the side wall of the chimney from the sliding groove in the limiting ring, the limiting ring is rotated to realize the dislocation of the bottom groove and the sliding groove, the limiting ring limits the ejector rod at the moment, and the ejector rod cannot be disassembled on the chimney, and finishing the installation.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic overall structural diagram of a preferred embodiment of a coke oven flue gas treatment pipeline for dust removal, desulfurization and denitrification provided by the invention;
FIG. 2 is an enlarged view of the part A shown in FIG. 1;
FIG. 3 is a schematic view of a connecting structure of a chimney, a limiting ring, a top rod, a top shell, a rotating ring, a bottom groove, a filter screen, a rotating shaft, a scraping blade and a sliding rail according to the present invention;
FIG. 4 is an enlarged view of the structure of the portion B shown in FIG. 3;
FIG. 5 is a schematic view of the connection structure of the chimney, the bottom groove, the filter screen, the scraper and the compression column;
FIG. 6 is a schematic view of the connection structure of the chimney, the outer pipe, the motor, the screw rod, the connecting plate, the left scraper, the right scraper and the cooling pipe according to the present invention;
FIG. 7 is a schematic view of the connection structure of the cooling pipe, the left scraper, the right scraper, the connecting plate and the screw rod of the present invention;
FIG. 8 is an enlarged view of the structure of the portion C shown in FIG. 6;
FIG. 9 is a schematic view of the connection structure of the left scraper, the handle, the push rod, the clamp column, the clamp plate and the spring.
In the figure: 1. an outer conduit; 2. a cooling mechanism; 201. an air inlet pipe; 202. an air outlet pipe; 203. a cooling tube; 3. a cleaning mechanism; 301. a protective cover; 302. a motor; 303. a screw rod; 304. a connecting plate; 305. a right squeegee blade; 306. a left squeegee; 307. a handle; 308. clamping a plate; 309. a top plate; 310. clamping the column; 311. a spring; 4. a smoke exhaust mechanism; 401. a chimney; 402. a limiting ring; 403. a top rod; 404. a top shell; 405. a chute; 406. a bottom groove; 407. rotating the ring; 5. a collection mechanism; 501. a cover plate; 502. a slide rail; 503. a collecting hopper; 504. an operation port; 505. a gasket; 506. a protection plate; 6. a dust scraping mechanism; 601. filtering with a screen; 602. a rotating shaft; 603. scraping a blade; 604. and (5) pressing the column.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-9, the coke oven flue gas treatment pipeline for dust removal, desulfurization and denitrification of the present invention includes an outer pipeline 1, a cooling mechanism 2 for cooling flue gas is installed on the outer pipeline 1, a cleaning mechanism 3 for cleaning ammonium bisulfate condensed on the cooling mechanism 2 is installed on the outer pipeline 1, the cleaning mechanism 3 is abutted against the cooling mechanism 2, a smoke exhaust mechanism 4 is installed on the outer pipeline 1, a dust scraping mechanism 6 for filtering particulate matters in flue gas is installed on the smoke exhaust mechanism 4, and a collecting mechanism 5 for collecting dust is installed on the dust scraping mechanism 6;
the cooling mechanism 2 comprises an air inlet pipe 201 and an air outlet pipe 202, the air inlet pipe 201 and the air outlet pipe 202 are installed on the outer pipeline 1, a cooling pipe 203 connected with the air inlet pipe 201 and the air outlet pipe 202 is installed inside the outer pipeline 1, the cleaning mechanism 3 comprises a motor 302, the motor 302 is installed on the outer pipeline 1, the motor 302 is connected with a lead screw 303 through a coupler, a connecting plate 304 in sliding connection with the outer pipeline 1 is connected onto the lead screw 303 through threads, a right scraper 305 in collision with the side wall of the cooling pipe 203 is fixedly connected onto the connecting plate 304, a plurality of clamping plates 308 are fixed at two ends of the right scraper 305, a left scraper 306 is in collision with the side wall of the cooling pipe 203, the clamping plates 308 are inserted into holes at the end part of the left scraper 306, a plurality of top plates 309 are connected onto the left scraper 306 in sliding connection, a plurality of the top plates 309 are connected with a handle 307, and a plurality of clamping columns 310 are fixedly connected to the bottoms of the top plates 309, the clamping columns 310 are buckled with holes in the clamping plates 308, a spring 311 is clamped between one of the top plates 309 and the left scraper 306, the left scraper 306 and the right scraper 305 are equal in size and shape, the cross section of the left scraper 306 is in a U-shaped structure, the cleaning mechanism 3 further comprises a protective cover 301, the motor 302 is provided with the protective cover 301, the air outlet pipe 202 is obliquely arranged, and the cooling pipe 203 is distributed in the outer pipeline 1 in an S shape; when the coke oven is used for desulfurization and denitrification operation, the outer pipeline 1 is connected with the coke oven, smoke generated by the coke oven is discharged to the inside of the outer pipeline 1, the air inlet pipe 201 on the cooling pipe 203 is connected with a cold air pipeline, cold air enters the cooling pipe 203, the smoke discharged by the coke oven is cooled by the cooling pipe 203, the cooling pipe 203 is S-shaped, so that the cold air stays in the cooling pipe 203 for a longer time, the smoke is cooled, the cooled smoke is discharged into the chimney 401, the cold air is discharged from the air outlet pipe 202, when more ammonium bisulfate is condensed on the outer wall of the cooling pipe 203 with a rectangular side surface, a worker starts the motor 302, the protective cover 301 protects the motor 302, and after the motor 302 is started, the screw rod 303 is rotated, further, due to the sliding connection between the connecting plate 304 and the outer pipe 1, the lead screw 303 drives the connecting plate 304 to ascend and descend on the inner wall of the outer pipe 1, when the connecting plate 304 ascends and descends, the left scraper 306 and the right scraper 305 scrape ammonium bisulfate on the side wall of the cooling pipe 203, cooling of flue gas inside the outer pipe 1 is facilitated, the scraped ammonium bisulfate can be cleaned from the inside of a hearth of a coke oven, when the left scraper 306 and the right scraper 305 need to be repaired, the left scraper 306 and the right scraper 305 are ensured to be at the lower limit positions of the cooling pipe 203, a worker pushes the handle 307 towards the top direction of the cooling pipe 203, the top plates 309 are driven to move together, at the moment, the spring 311 is opened, and further, the clamping column 310 exits from the hole on the clamping plate 308, therefore, the left scraper blade 306 and the right scraper blade 305 are disassembled, and the left scraper blade 306 and the right scraper blade 305 are convenient to overhaul.
Specifically, the smoke exhaust mechanism 4 includes a chimney 401, the chimney 401 is installed on the outer pipeline 1, the inner wall of the chimney 401 rotates to form a rotating ring 407, the top of the rotating ring 407 is fixedly connected with a limiting ring 402, a plurality of sliding grooves 405 are formed in the limiting ring 402 in an annular array, a plurality of bottom grooves 406 opposite to the sliding grooves 405 are formed in the chimney 401 in an annular array, ejector rods 403 slide on the sliding grooves 405 and the bottom grooves 406, the ejector rods 403 abut against the limiting ring 402, a plurality of ejector rods 403 are fixedly connected with top shells 404, the protective covers 301 are fixed on the chimney 401, the cross sections of the ejector rods 403 are in an L-shaped structure, and the top shells 404 are in a circular truncated cone-shaped structure; cooled flue gas is discharged from the outer pipeline 1 to the inner part of the chimney 401 and finally discharged from the limiting ring 402, the top shell 404 on the ejector 403 protects the limiting ring 402 and the chimney 401, rainwater is prevented from entering the inner part of the coke oven, the ejector 403 and the top shell 404 can be disassembled when the filter screen 601 is cleaned or the filter screen 601 is overhauled, when the top shell 404 is disassembled, the limiting ring 402 in the chimney 401 is rotated, the sliding groove 405 on the side wall of the limiting ring 402 corresponds to the bottom groove 406 on the chimney 401, the ejector 403 is pulled in the direction deviating from the top part of the chimney 401, the plurality of ejector 403 are slipped from the sliding groove 405, the ejector 403 and the top shell 404 are disassembled, the filter screen 601 is overhauled conveniently, and during installation, and sliding the top rod 403 onto the bottom groove 406 of the side wall of the chimney 401 from the sliding groove 405 on the limiting ring 402, and after the bottom of the top rod 403 abuts against the bottom groove 406, rotating the limiting ring 402 to realize dislocation of the bottom groove 406 and the sliding groove 405, wherein the top rod 403 is limited by the limiting ring 402, and the top rod 403 cannot be detached from the chimney 401, so that the installation is completed.
Specifically, the dust scraping mechanism 6 comprises a filter screen 601, the filter screen 601 is installed on the inner wall of the chimney 401, the center of the filter screen 601 is rotatably connected with a rotating shaft 602, the rotating shaft 602 is relatively and fixedly connected with two scraping blades 603, one of the scraping blades 603 is abutted to the surface of the filter screen 601, the other scraping blade 603 is abutted to the bottom surface of the filter screen 601, the dust scraping mechanism 6 further comprises a pressing column 604, the bottom of the scraping blade 603 at the top of the filter screen 601 is fixedly connected with the pressing column 604, the pressing column 604 is abutted to the surface of the filter screen 601, the collecting mechanism 5 comprises a sliding rail 502, the bottom of the rotating shaft 602 is fixedly connected with a sliding rail 502 parallel to the scraping blades 603, the sliding rail 502 is connected with a collecting hopper 503, the collecting hopper 503 is located at the bottom of the scraping blades 603, a protection plate 506 is fixed to the side wall of the chimney 401, and a cover plate 501 of an arc structure is slidably connected between the protection plate 506 and the chimney 401, an operation opening 504 corresponding to the collecting hopper 503 is formed in the side wall of the chimney 401, the collecting mechanism 5 further comprises a sealing gasket 505, and the sealing gasket 505 abutting against the cover plate 501 is bonded to the side wall of the chimney 401; the flue gas is discharged into the chimney 401 and then filtered by the filter screen 601, so that larger dust and particles in the flue gas are filtered by the filter screen 601, when more dust particles are on the filter screen 601, a worker can directly rotate the rotating shaft 602 on the filter screen 601, so that two scraping blades 603 on the rotating shaft 602 rotate simultaneously, when the scraping blades 603 rotate, the dust particles on the surface and the bottom surface of the filter screen 601 are scraped, the scraped dust particles fall onto the collecting hopper 503 on the slide rail 502, when the scraping blades 603 on the surface of the filter screen 601 rotate, the pressing column 604 is realized to crush the dust with larger particles on the surface of the filter screen 601, the falling collection is facilitated, and when the dust in the collecting hopper 503 is cleaned, the cover plate 501 between the protection plate 506 and the chimney 401 is slid, furthermore, the rotating shaft 602 is rotated to enable the sliding rail 502 to correspond to the operation opening 504, the collecting hopper 503 on the sliding rail 502 is taken out from the operation opening 504, then dust on the collecting hopper 503 can be cleaned, the operation is simple, the collecting hopper 503 is slid onto the sliding rail 502 after the cleaning is finished, the cover plate 501 is closed, and the sealing effect of the cover plate 501 is improved by the sealing gasket 505, so that smoke leakage is avoided.
When the invention is used, firstly, when the coke oven is used for desulfurization and denitrification operation, the outer pipeline 1 is connected with the coke oven, smoke generated by the coke oven is discharged to the inside of the outer pipeline 1, the air inlet pipe 201 on the cooling pipe 203 is connected with the cold air pipeline, cold air enters the inside of the cooling pipe 203, then the smoke discharged by the coke oven is cooled by the cooling pipe 203, the cooling pipe 203 is in an S-shaped trend, so that the cold air stays in the cooling pipe 203 for a longer time, the smoke is cooled, the cooled smoke is discharged into the chimney 401, the cold air is discharged from the air outlet pipe 202, when more ammonium bisulfate is condensed on the outer wall of the cooling pipe 203 with a rectangular side surface, a worker starts the motor 302, the protective cover 301 protects the motor 302, after the motor 302 is started, the screw rod 303 is rotated, and further, because the connecting plate 304 is connected with the outer pipeline 1 in a sliding way, the lead screw 303 drives the connecting plate 304 to ascend and descend on the inner wall of the outer pipeline 1, when the connecting plate 304 ascends and descends, the left scraper 306 and the right scraper 305 scrape ammonium bisulfate on the side wall of the cooling pipe 203, cooling of smoke inside the outer pipeline 1 is facilitated, the scraped ammonium bisulfate can be cleaned from the inside of a hearth of the coke oven, when the left scraper 306 and the right scraper 305 need to be overhauled, the left scraper 306 and the right scraper 305 are ensured to be positioned at the lower limit positions of the cooling pipe 203, a worker pushes the handle 307 towards the top direction of the cooling pipe 203 to drive the top plates 309 to move together, the spring 311 is opened at the moment, and further, the clamping column 310 withdraws from the hole in the clamping plate 308, so that the left scraper 306 and the right scraper 305 are detached, and overhauling of the left scraper 306 and the right scraper 305 is facilitated; then, the smoke is discharged into the chimney 401 and then filtered by the filter screen 601, so that larger dust and particles in the smoke are filtered by the filter screen 601, when more dust particles are on the filter screen 601, a worker can directly rotate the rotating shaft 602 on the filter screen 601, so as to realize that the two scraping blades 603 on the rotating shaft 602 rotate simultaneously, when the scraping blades 603 rotate, the dust particles on the surface and the bottom surface of the filter screen 601 are scraped, the scraped dust particles fall onto the collecting hopper 503 on the sliding rail 502, so that when the scraping blades 603 on the surface of the filter screen 601 rotate, the pressing column 604 breaks the dust with larger particles on the surface of the filter screen 601, the dust falls and is collected, when the dust in the collecting hopper is cleaned, the cover plate 501 between the sliding plate 506 and the chimney 401 is slid, further, the sliding rail 502 corresponds to the operation port protection plate 504 by rotating the rotating shaft 602, and the dust on the collecting hopper 503 on the sliding rail 502 can be cleaned by taking out the collecting hopper 503 on the operation port protection plate 504, the operation is simple, after the cleaning is finished, the collecting hopper 503 slides onto the sliding rail 502, the cover plate 501 is closed, and the sealing effect of the cover plate 501 is improved by the sealing gasket 505, so that smoke leakage is avoided; finally, cooled flue gas is discharged from the outer pipeline 1 to the interior of the chimney 401 and finally discharged from the limiting ring 402, the top shell 404 on the ejector 403 protects the limiting ring 402 and the chimney 401, rainwater is prevented from entering the interior of the coke oven, the ejector 403 and the top shell 404 can be disassembled when the filter screen 601 is cleaned or the filter screen 601 is overhauled, the limiting ring 402 in the chimney 401 is rotated when the top shell 404 is disassembled, the sliding groove 405 on the side wall of the limiting ring 402 corresponds to the bottom groove 406 on the chimney 401, the ejector 403 is pulled in the direction deviating from the top of the chimney 401, the plurality of ejector 403 slides from the sliding groove 405, the ejector 403 and the top shell 404 are disassembled, the filter screen 601 is favorably overhauled, the ejector 403 slides onto the bottom groove 406 on the side wall of the chimney 401 from the sliding groove 405 on the limiting ring 402 when the filter screen 601 is installed, the limiting ring 402 is rotated after the bottom of the ejector 403 is abutted against the bottom groove 406, the dislocation of the bottom groove 406 and the sliding groove 405 is realized, the limit ring 402 limits the ejector rod 403 at the moment, and the ejector rod 403 cannot be detached from the chimney 401, so that the installation is completed.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. The coke oven flue gas treatment pipeline for dust removal, desulfurization and denitrification is characterized by comprising an outer pipeline (1), wherein a cooling mechanism (2) for cooling flue gas is installed on the outer pipeline (1), a cleaning mechanism (3) for cleaning ammonium bisulfate condensed on the cooling mechanism (2) is installed on the outer pipeline (1), the cleaning mechanism (3) is abutted against the cooling mechanism (2), a smoke exhaust mechanism (4) is installed on the outer pipeline (1), a dust scraping mechanism (6) for filtering particulate matters in the flue gas is installed on the smoke exhaust mechanism (4), and a collecting mechanism (5) for collecting dust is installed on the dust scraping mechanism (6);
the cooling mechanism (2) comprises an air inlet pipe (201) and an air outlet pipe (202), the air inlet pipe (201) and the air outlet pipe (202) are installed on an outer pipeline (1), a cooling pipe (203) connected with the air inlet pipe (201) and the air outlet pipe (202) is installed inside the outer pipeline (1), the cleaning mechanism (3) comprises a motor (302), the motor (302) is installed on the outer pipeline (1), a lead screw (303) is connected onto the motor (302) through a coupler, a connecting plate (304) in sliding connection with the outer pipeline (1) is in threaded connection with the lead screw (303), a right scraper (305) butted against the side wall of the cooling pipe (203) is fixedly connected onto the connecting plate (304), a plurality of clamping plates (308) are fixed at both ends of the right scraper (305), a left scraper (306) is arranged on the side wall of the cooling pipe (203), and the clamping plates (308) are inserted into holes butted against the end part of the left scraper (306), the left scraper (306) is connected with a plurality of top plates (309) in a sliding mode, the top plates (309) are connected with a handle (307), the bottoms of the top plates (309) are fixedly connected with clamping columns (310), the clamping columns (310) are buckled with holes in clamping plates (308), and a spring (311) is clamped between one top plate (309) and the left scraper (306);
the smoke exhaust mechanism (4) comprises a chimney (401), the chimney (401) is installed on the outer pipeline (1), a rotating ring (407) is rotated on the inner wall of the chimney (401), a limiting ring (402) is fixedly connected to the top of the rotating ring (407), a plurality of sliding grooves (405) are formed in the limiting ring (402) in an annular array mode, a plurality of bottom grooves (406) opposite to the sliding grooves (405) are formed in the chimney (401) in the annular array mode, ejector rods (403) slide on the sliding grooves (405) and the bottom grooves (406), the ejector rods (403) abut against the limiting ring (402), and top shells (404) are fixedly connected to the ejector rods (403); the cross section of the ejector rod (403) is of an L-shaped structure, and the top shell (404) is of a circular truncated cone-shaped structure;
the dust scraping mechanism (6) comprises a filter screen (601), the filter screen (601) is installed on the inner wall of the chimney (401), a rotating shaft (602) is rotatably connected to the center of the filter screen (601), two scraping blades (603) are relatively and fixedly connected to the rotating shaft (602), the bottom of one scraping blade (603) is abutted against the surface of the filter screen (601), and the top of the other scraping blade (603) is abutted against the bottom surface of the filter screen (601); the dust scraping mechanism (6) further comprises a pressure column (604), the bottom of the scraping blade (603) positioned at the top of the filter screen (601) is fixedly connected with the pressure column (604), and the pressure column (604) is abutted against the surface of the filter screen (601);
the collecting mechanism (5) comprises a sliding rail (502), the bottom of the rotating shaft (602) is fixedly connected with the sliding rail (502) parallel to the scraping blade (603), the sliding rail (502) is connected with a collecting hopper (503) in a sliding manner, the collecting hopper (503) is positioned at the bottom of the scraping blade (603), the side wall of the chimney (401) is fixed with a protection plate (506), a cover plate (501) with an arc-shaped structure is connected between the protection plate (506) and the chimney (401) in a sliding manner, and the side wall of the chimney (401) is provided with an operation opening (504) corresponding to the collecting hopper (503); the collecting mechanism (5) further comprises a sealing gasket (505), and the side wall of the chimney (401) is bonded with the sealing gasket (505) abutting against the cover plate (501).
2. The coke oven flue gas treatment pipeline for dust removal, desulfurization and denitrification as recited in claim 1, characterized in that: the left scraper (306) and the right scraper (305) are equal in size and shape, and the cross section of the left scraper (306) is of a U-shaped structure.
3. The coke oven flue gas treatment pipeline for dust removal, desulfurization and denitrification as recited in claim 2, characterized in that: the cleaning mechanism (3) further comprises a protective cover (301), the motor (302) is provided with the protective cover (301), and the protective cover (301) is fixed on the chimney (401).
4. The coke oven flue gas treatment pipeline for dust removal, desulfurization and denitrification as recited in claim 1, characterized in that: the air outlet pipe (202) is obliquely arranged, and the cooling pipe (203) is distributed in the outer pipeline (1) in an S shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210392389.3A CN114485197B (en) | 2022-04-15 | 2022-04-15 | Coke oven flue gas treatment pipeline for dust removal, desulfurization and denitrification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210392389.3A CN114485197B (en) | 2022-04-15 | 2022-04-15 | Coke oven flue gas treatment pipeline for dust removal, desulfurization and denitrification |
Publications (2)
| Publication Number | Publication Date |
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| CN114485197A CN114485197A (en) | 2022-05-13 |
| CN114485197B true CN114485197B (en) | 2022-06-24 |
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| CN202210392389.3A Active CN114485197B (en) | 2022-04-15 | 2022-04-15 | Coke oven flue gas treatment pipeline for dust removal, desulfurization and denitrification |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB672970A (en) * | 1948-11-16 | 1952-05-28 | Anthony William Frederick Lang | Improvements in chimney cleaning equipment |
| CN201143416Y (en) * | 2007-11-10 | 2008-11-05 | 娄留义 | Smoke abatement and desulfurization machine |
| CN204268488U (en) * | 2014-11-20 | 2015-04-15 | 江苏焱鑫科技股份有限公司 | Closed skid incinerator |
| CN210544213U (en) * | 2019-07-31 | 2020-05-19 | 襄阳职业技术学院 | Filter environment-friendly chimney |
| CN212747377U (en) * | 2020-08-27 | 2021-03-19 | 中信大锰（钦州）新材料有限公司 | Smoke cooling dust remover for ore-smelting electric furnace |
| CN113719852A (en) * | 2021-08-30 | 2021-11-30 | 安徽华铂再生资源科技有限公司 | Air cooling device for boiler |
-
2022
- 2022-04-15 CN CN202210392389.3A patent/CN114485197B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB672970A (en) * | 1948-11-16 | 1952-05-28 | Anthony William Frederick Lang | Improvements in chimney cleaning equipment |
| CN201143416Y (en) * | 2007-11-10 | 2008-11-05 | 娄留义 | Smoke abatement and desulfurization machine |
| CN204268488U (en) * | 2014-11-20 | 2015-04-15 | 江苏焱鑫科技股份有限公司 | Closed skid incinerator |
| CN210544213U (en) * | 2019-07-31 | 2020-05-19 | 襄阳职业技术学院 | Filter environment-friendly chimney |
| CN212747377U (en) * | 2020-08-27 | 2021-03-19 | 中信大锰（钦州）新材料有限公司 | Smoke cooling dust remover for ore-smelting electric furnace |
| CN113719852A (en) * | 2021-08-30 | 2021-11-30 | 安徽华铂再生资源科技有限公司 | Air cooling device for boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114485197A (en) | 2022-05-13 |
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Address after: 250000 Gangcheng Economic Development Zone, Jinan City, Shandong Province (100, building 1, No. 10, Gangcheng Street) Patentee after: Shandong Lijing Environmental Protection Technology Co.,Ltd. Address before: 271104 Gangcheng Economic Development Zone, Jinan City, Shandong Province (100, building 1, No. 10, Gangcheng Street) Patentee before: SHANDONG LAIGANG ENERGY CONSERVATION AND ENVIRONMENTAL PROTECTION ENGINEERING Co.,Ltd. |