CN111237792B - Smoke-discharging anti-blocking filtering dust-removing device for boiler - Google Patents
Smoke-discharging anti-blocking filtering dust-removing device for boiler Download PDFInfo
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- CN111237792B CN111237792B CN202010047527.5A CN202010047527A CN111237792B CN 111237792 B CN111237792 B CN 111237792B CN 202010047527 A CN202010047527 A CN 202010047527A CN 111237792 B CN111237792 B CN 111237792B
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- dust
- cylinder
- annular
- dust removing
- flue gas
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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
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
- F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
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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
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
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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
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
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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
- F23J2217/00—Intercepting solids
- F23J2217/10—Intercepting solids by filters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The boiler is discharged fume and is prevented stifled dust collector that filters, advance the pipe including the flue gas, a dust removal section of thick bamboo and storage dirt fill, the fixed setting in storage dirt top of fighting of dust removal section of thick bamboo lower extreme, the export that the pipe was advanced to the flue gas is connected with the lower side portion of a dust removal section of thick bamboo, the port is equipped with the swivel cap on the dust removal section of thick bamboo, two at least gas outlets have been seted up to the lateral part on the dust removal section of thick bamboo, the dust removal section of thick bamboo outside is connected with the flue gas exit tube with the gas outlet one-to-one, the swivel cap bottom is equipped with tube-shape filter screen subassembly, the outer lane of tube-shape filter screen subassembly with remove the contact of a dust section of thick bamboo inner wall and shelter from all gas outlets, be equipped with the rotatory mechanism of scraping of air current velocity hoist mechanism and being used for scraping the dust removal section of thick bamboo inner wall attachment on the swivel cap. The invention firstly filters and removes dust from the flue gas discharged after the fuel in the boiler is combusted, reduces the burden for subsequently removing acid gas, can remove the dust attached to the inner wall of the dust removal cylinder, ensures the smoothness of a dust removal channel, and ensures that the flue gas after dust removal cannot be attached to the inner wall of a flue gas outlet pipe in the conveying process.
Description
Technical Field
The invention belongs to the technical field of industrial boilers, and particularly relates to a smoke-discharging anti-blocking filtering dust-removing device for a boiler.
Background
In recent years, environmental protection is increasingly emphasized by people, and flue gas generated after boiler fuel is combusted carries more dust when being discharged, particularly more dust of a coal-fired boiler. The mode of handling the dust at present generally is carried spray set through the exhaust pipe and carries out the dust removal operation, does not set up dust collector in boiler exhaust pipe department at present, because the distance that the exhaust pipe set up is longer, the dust can be in attaching to the exhaust pipe inner wall, is difficult for clearing up moreover, can appear discharging fume the not smooth condition in the long term, influences the safety and stability operation of boiler. In addition, dust and SO are removed from the flue gas generated by the boiler2And NOx and other atmospheric pollutants are sprayed with aqueous alkali by a spraying device and are operated at the same time, if dust is not removed firstly, the dust can affect the recycling of the spraying solution after precipitation, such as blockage of a spray head; still need regularly clear up the precipitate, waste more manpower.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides the boiler smoke-discharging anti-blocking filtering dust-removing device which avoids the blockage of a smoke-discharging pipeline and facilitates the subsequent alkali liquor spraying and acid gas removing by dust removal.
In order to solve the technical problems, the invention adopts the following technical scheme: the boiler is discharged fume and is prevented stifled dust collector that filters, advance the pipe including the flue gas, a dust removal section of thick bamboo and store up the dirt fill, dust removal section of thick bamboo lower extreme is fixed to be set up at storage dirt fill top and with store up the inside intercommunication of dirt fill, the export that the flue gas advances the pipe is connected with the lower side of a dust removal section of thick bamboo, the last port of a dust removal section of thick bamboo is equipped with the swivel cap, two at least gas outlets of highly uniform are seted up along the circumferencial direction to the lateral part on the dust removal section of thick bamboo, the dust removal section of thick bamboo outside is connected with the flue gas exit tube with the gas outlet one-to-one along radial direction, the swivel cap bottom is equipped with the tube-shape filter screen subassembly that is located a dust removal section of thick bamboo, the outer lane of tube-shape filter screen subassembly and the contact of a dust removal section of thick bamboo inner wall and shelter from all gas outlets, be equipped with the air current velocity of flow hoist mechanism and be used for scraping the rotatory material mechanism that scrapes of getting dust removal section of thick bamboo inner wall attachment on the swivel cap.
An annular extension board is horizontally arranged at the upper end of the dust removing cylinder, an annular cylinder extending downwards is arranged at the outer side circumferential edge of the rotary cover, an upper annular groove and a lower annular groove which correspond up and down are respectively formed in the lower surface of the rotary cover and the upper surface of the annular extension board, a plurality of supporting balls are arranged in the upper annular groove and the lower annular groove in a rolling manner, a horizontal gap is formed between the lower surface of the rotary cover and the upper surface of the annular extension board, a sealing gasket is arranged on the inner side of the supporting balls in the horizontal gap, a positioning ring assembled on the inner wall of an upper port of the dust removing cylinder is integrally arranged in the inner circle of the sealing gasket, a vertical gap is formed between the inner wall of the annular cylinder and the outer ring of the annular extension board, a plurality of positioning bolts are connected to the lower portion of the annular extension board along the circumferential thread, each positioning bolt is arranged along the radial direction of the annular cylinder, and the inner end of each positioning bolt is in jacking contact with the outer wall of the dust removing cylinder.
The upper part of the excircle of the annular cylinder is provided with an outer gear ring, the outer side part of the dust removing cylinder is provided with a first motor reducer through a mounting frame, and a power output shaft of the first motor reducer is provided with a gear meshed with the outer gear ring; at least three rings are arranged on the upper surface of the rotary cover in a circular array near the edge.
The cylindrical filter screen component comprises an air filter cylinder, a plurality of elastic pressing strips and an annular mounting plate, wherein the annular mounting plate is fixedly arranged on the lower surface of the rotary cover through mounting screws, the center lines of the annular mounting plate, the air filter cylinder and the dust removing cylinder are overlapped, the upper ends of the elastic pressing strips are fixedly connected onto the annular mounting plate, all the elastic pressing strips are uniformly arranged along the circumferential direction of the annular mounting plate, the outer diameter of the air filter cylinder is equal to the inner diameter of the dust removing cylinder, the outer ring of the air filter cylinder is in contact with the inner wall of the dust removing cylinder and shields all air outlets, annular sealing strips are fixedly arranged on the upper portion and the lower portion of the outer ring of the air filter cylinder along the circumferential direction, the annular sealing strips on the upper portion are positioned above the air outlets, the annular sealing strips on the lower portion are positioned below the air outlets, and the lower portions of the elastic pressing strips are fixedly connected with the inner wall of the air filter cylinder, under the action of the elastic pressing strip, the upper annular sealing strip and the lower annular sealing strip are in compression joint and sealing fit with the inner wall of the dust removing cylinder.
Each flue gas outlet pipe is connected with a high-pressure gas pipe and a first stop valve, the connection position of the high-pressure gas pipe and the flue gas outlet pipe is located between the first stop valve and the dust removing barrel, and the high-pressure gas pipe is provided with a second stop valve.
The flue gas inlet pipe is provided with a third stop valve at the position adjacent to the dust removing cylinder, and the flue gas inlet pipe is obliquely arranged from high to low along the direction of the internal airflow.
The airflow velocity lifting mechanism comprises a hollow shaft, a driving motor, fan blades, an upper bearing seat and a lower bearing seat; the rotary scraping mechanism comprises a support, a driving shaft, a second motor reducer, a spiral scraper and a lower rotary supporting assembly;
the hollow shaft and the driving shaft are vertically arranged, the driving shaft penetrates through the hollow shaft, the central line of the driving shaft is superposed with the central line of the rotating cover, the support is fixedly arranged on the rotating cover, the top of the support is provided with a horizontal support plate through a bolt, the second motor reducer is fixedly arranged on the horizontal support plate, the horizontal support plate is provided with a through hole, a main shaft of the second motor reducer vertically downwards penetrates through the through hole and is in transmission connection with the upper end of the driving shaft through a flange coupler, the hollow shaft penetrates through the rotating cover and is in rotational connection with the rotating cover through a first bearing, the upper part and the lower part of the first bearing are both provided with a baffle plate, the driving motor is arranged on the rotating cover, and the driving motor is in transmission connection with the hollow shaft through a gear transmission mechanism;
the upper bearing seat and the lower bearing seat are identical in structure and are arranged in an up-down symmetrical mode, an internal thread sleeve is arranged at the top of the lower bearing seat, the outer portion of the lower end of the hollow shaft extends into the internal thread sleeve and is in threaded connection with the internal thread sleeve, a back nut in compression joint with the upper end of the internal thread sleeve is in threaded connection with the outer portion of the hollow shaft, a second bearing is installed in the lower bearing seat, the outer circle of the driving shaft is in rotary connection with the lower bearing seat through the second bearing installed in the lower bearing seat, an end cover sleeved on the outer circle of the driving shaft is arranged at the lower end of the lower bearing seat through a bolt, and a sealing ring is arranged between the inner ring of the end cover and the outer circle of the driving shaft;
the fan blades are provided with at least three fan blades, the three fan blades are uniformly arranged on the periphery of the lower part of the end cover connected with the bottom of the lower bearing seat, and the fan blades are positioned below the air outlet;
the upper end and the drive shaft lower extreme fixed connection of spiral scraper blade, the biggest surface of revolution of spiral scraper blade are cylindrical, and this columniform diameter equals the internal diameter of a dust removal section of thick bamboo, the outside limit and the contact of a dust removal section of thick bamboo inner wall of spiral scraper blade, and lower rotation supporting component sets up the lower port department at a dust removal section of thick bamboo, stores up the inside four diagonal braces that are equipped with of dirt fill, and the upper end of four diagonal braces all is connected with lower rotation supporting component's fixed part, and the lower extreme of spiral scraper blade is connected with the movable part that is connected lower rotation supporting component.
The lower rotating support component comprises a fixed sleeve, a rotating shaft and a dust cover, and the fixed sleeve and the dust removing cylinder are arranged on the same central line; fixed sleeving lower part and four diagonal braces upper end fixed connection, four diagonal braces lower extremes are fixed respectively and are established on the inner wall that stores up the dirt fill, four diagonal braces are arranged along the central line circumference array of dust removal section of thick bamboo, rotation axis upper end and the fixed connection of shield bottom center department, the shield top is the globular structure, shield bottom circumference border is equipped with the dirt proof boot, the rotation axis rotates to be connected in fixed bushing, fixed sleeving upper portion stretches into in the annular groove that forms between rotation axis and the dirt proof boot, between fixed sleeving excircle and the dirt proof boot inner wall, equal clearance fit between the interior circle of fixed sleeving and the rotation axis excircle, it has lubricated graphite powder to fill between fixed sleeving up end and the annular groove bottom.
Store up the dirt fill and be upper portion quadrangular form, the lower part is quadrangular pyramid's box structure, it is equipped with the discharge tube to store up dirt fill bottom, be equipped with the discharge valve on the discharge tube, it is equipped with a body to store up dirt fill upper portion left side, it is equipped with a horizontal pole to fix between two left diagonal braces in the dirt fill, it is connected with a lever to rotate on the horizontal pole, the lever adopts side's pipe to make, lever left side portion is seted up penetrating guide hole and penetrating perforation from top to bottom around one along length direction, guide hole and perforation intercommunication, guide hole length is greater than perforation length, wear to be equipped with the ejector pin of vertical setting in the perforation, the ejector pin lower part is rotated through the round pin axle that the level set up and is connected in the guide hole, the ejector pin upper end stretches into in the fixed cover.
A plug is arranged in a left port of the lever, a positioning rod is hinged to the left side of the top of the dust storage hopper, a hanging ring is arranged on the upper portion of the left end of the lever, the lower end of the positioning rod is bent to form a hook, and the hook is connected with the hanging ring in a hanging mode.
By adopting the technical scheme, the specific process of normal operation of the invention is as follows: the flue gas generated by the fuel of the boiler is discharged into the dust removing cylinder through the flue gas inlet pipe, and then upwards filtered by the air filter cylinder along the inside of the dust removing cylinder, and the flue gas without dust is discharged through the gas outlet and the flue gas outlet pipe and enters the spraying device to remove the acid gas. The driving motor drives the hollow shaft to rotate at a high speed through the gear transmission mechanism, the bottom of the lower bearing seat at the lower end of the hollow shaft is connected with the fan blades arranged on the end cover to rotate, negative pressure is formed above the fan blades, accordingly, smoke flows upwards along the dust removing cylinder with higher speed, and the smoke exhaust speed of the air filter cylinder arranged at the air outlet is not reduced. The arrangement of the air filter cylinder filters dust in the flue gas, and the dust falls into the dust storage hopper along the dust removal cylinder under the action of self gravity.
The boiler is at the normal in-process of discharging fume, and the dust can be attached to a section of thick bamboo inner wall that removes dust, can start second motor reducer, and second motor reducer drives the drive shaft and rotates at a slow speed, and the spiral scraper blade that the drive shaft lower extreme is connected also rotates thereupon, and the rotatory in-process of spiral scraper blade is scraped the attached dust of a section of thick bamboo inner wall that removes dust, and the dust of scraping falls into in the dust storage hopper. The spiral scraper blade can be in full contact with the inside of the dust removal cylinder in the rotating process, the hard plastic sleeve can be wrapped outside the spiral scraper blade, and the inner wall of the dust removal cylinder is prevented from being abraded when the hard plastic sleeve is in contact with the inner wall of the dust removal cylinder.
The lower end of the spiral scraper is provided with a lower rotating support component which plays a role in supporting the spiral scraper and also plays a role in ensuring that the spiral scraper is concentric up and down when rotating. Rotation axis, shield and the dirt proof boot in the lower rotation supporting component all use fixed sleeving to be rotatory as the center, and at rotatory in-process, lubricated graphite powder can enter into the clearance of rotation axis excircle to play the lubrication action, alleviate the rotatory frictional resistance between rotation axis, dirt proof boot and the fixed sleeving, the life of extension part. The lubricating graphite powder is extruded by the upper end of the fixed sleeve and the bottom of the dustproof cover, so that the lubricating graphite powder cannot leak along the gap all the time.
The parts in contact with the flue gas are all made of acid-resistant steel, so that the corrosion of acid gas in the flue gas is avoided. The material of the air filter cylinder can be paper, non-woven fabric or glass fiber and the like.
The upper part and the lower part of the outer surface of the air filter cylinder are respectively provided with the annular sealing strips, and the two annular sealing strips are pressed on the inner wall of the dust removing cylinder through the elastic pressing strips to play a good sealing role.
At intervals, when the dust attached to the inner wall of the air filter cylinder at the air outlet is large, the smoke exhaust speed can be influenced, at the moment, the positioning bolt can be unscrewed, the first motor reducer is started, the first speed reduction motor drives the outer gear ring to rotate through the gear, the outer gear ring drives the rotary cover to rotate clockwise for a certain angle (such as 45 degrees), the support balls roll in the upper annular groove and the lower annular groove, the annular mounting plate connected to the bottom surface of the rotary disk rotates along with the rotation, the elastic pressing strip and the air filter cylinder are driven to rotate for a certain angle, so that the part of the air filter cylinder which is not filtered is rotated to correspond to the air outlet, a new filter screen is replaced equivalently, the exhaust speed is ensured not to be reduced, finally, the first motor reducer is closed, the positioning bolt is screwed, and the inner end of the positioning bolt abuts against the outer wall of the dust removal cylinder to lock the rotary cover.
The four air outlets are arranged, the air filter cylinder can be rotated by 45 degrees clockwise again, if the time interval is longer, the air filter cylinder needs to be cleaned reversely, the four smoke outlet pipes can be cleaned one by one, and the normal operation of smoke discharge is not influenced. The reverse cleaning process is as follows: the driving motor is closed, the first stop valve is closed, the high-pressure air pipe is connected with the air compressor, the second stop valve is opened, high-pressure air flow enters the flue gas outlet pipe, the air filter cylinder is reversely sprayed with high-pressure air flow through the air outlet, so that the attached dust on the inner arm of the air filter cylinder can be removed, in order to improve the reverse cleaning effect, the high-pressure air flow can be impacted by adopting an impulse type, and the dust attached to the inner arm of the air filter cylinder is blown off and automatically falls into the dust storage hopper. Of course, during the boiler maintenance, the four flue gas outlet pipes can be simultaneously subjected to the operation of reversely cleaning the air filter cartridge, at this time, the driving motor is closed, the first stop valve and the third stop valve are closed, the second stop valve is opened, the high-pressure air flow simultaneously enters the four flue gas outlet pipes, and the air filter cartridge is reversely sprayed with the high-pressure air flow through the air outlet. Then the positioning bolt is loosened, the first motor speed reducer is started to drive the rotating cover and the air filter cylinder to rotate reversely for 45 degrees and then the rotation is stopped, and then the high-pressure airflow is reversely cleaned. Or in the process of high-pressure airflow reverse cleaning, the first motor reducer drives the rotary cover and the air filter cylinder to continuously rotate, so that the air filter cylinder can be conveniently and quickly reversely cleaned. And closing the first motor reducer after reverse cleaning, and screwing the positioning bolt.
When reverse cleaning of the air filter cartridge by the high pressure air stream is not effective, a new air filter cartridge may need to be replaced. The specific replacement process is as follows: firstly, the positioning bolt is unscrewed, the inner end of the positioning bolt retracts into the annular cylinder, a steel wire rope is used for connecting a lifting ring on a rotary cover, a lifting hook of a lifting device is used for hanging the upper end of the steel wire rope, a door body on the left side of a dust storage hopper is opened at the same time, the positioning rod is taken down, a plug is taken out, a stress rod is inserted into the left end of a lever, the left end of the stress rod extends out of the dust storage hopper, the stress rod is pressed downwards when the lifting device lifts a rotary disk upwards, the lever takes a transverse rod as a fulcrum, the left end of the lever moves upwards, so that a top rod is driven to lift a rotary shaft and a dustproof cover upwards, the stress rod and the spiral scraper move upwards together until the lower end of the rotary shaft is separated from a fixed sleeve. The ejector pin upwards ejects out the rotating shaft, and the situation that the spiral scraper is broken due to the fact that the tensile force is inclined (not vertically upwards) when the dust cover is pulled upwards through the spiral scraper is avoided. And after the rotating shaft is lifted out of the upper part of the dust removing cylinder, the mounting screws are disassembled, the annular mounting plate and the air filter cylinder are taken down, the new annular mounting plate and the new air filter cylinder are replaced, and then the running conditions of other parts are overhauled. Then the component is hoisted and enters the dust removing cylinder, when a new air filter cylinder enters the upper port of the dust removing cylinder, the lower end of the air filter cylinder is compressed inwards to overcome the elasticity of the elastic pressing strip, and after the lower end of the air filter cylinder enters the dust removing cylinder, the downward pressure of the rotary cover can be applied, so that the air filter cylinder can move downwards more easily. When the rotating shaft is installed in the fixed sleeve, a flat plate is laid at the top of the conical part inside the dust storage hopper, a worker can enter the dust storage hopper through the opening on the left side of the upper part of the dust storage hopper, the worker stands on the flat plate, firstly, a layer of lubricating graphite powder is poured on the upper fixed end face, and then the worker holds the dustproof sleeve to enable the rotating shaft to be correspondingly inserted into the fixed sleeve. After the upper ring groove on the rotary cover is in contact fit with the support ball, the positioning bolt is screwed down, and the air filter cylinder replacement and related maintenance operations are completed.
The invention adopts the rotating fit of the hollow shaft and the upper part and the lower part of the driving shaft, the outer part of the hollow shaft is rotatably connected on the rotating cover through the first bearing, and the upper end of the hollow shaft is coaxially and drivingly connected with the first speed reducing motor, so that the coaxiality of the hollow shaft and the driving shaft can be determined, and the rotating positioning has good reliability.
When a reverse clean air filter cylinder, the third stop valve is closed to prevent dust from flowing back into the boiler through the smoke inlet pipe, and the smoke inlet pipe is inclined from high to low along the internal airflow direction, so that the dust is prevented from entering the boiler along the smoke inlet pipe when the inner wall of the dust removal cylinder is scraped. The flue gas advances the pipe shorter, and the adnexed dust clearance accessible of its inner wall is cleared up the operation with the ring flange that the boiler is connected, and the dust that its inner wall cleared up out can fall into in the dust storage fill by the tilting.
In conclusion, the invention has scientific principle, novel design and compact structure, firstly filters and removes dust from the flue gas discharged after the fuel in the boiler is combusted, reduces the burden for subsequently removing acid gas, can remove dust attached to the inner wall of the dust removal cylinder, ensures the smoothness of a dust removal channel, and ensures that the flue gas after dust removal is not attached to the inner wall of a flue gas outlet pipe in the conveying process.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a bottom view of the cartridge screen assembly of FIG. 1;
FIG. 3 is an enlarged view at A in FIG. 1;
fig. 4 is a left side view of the lever, diagonal brace and lower rotational support assembly of the dust hopper of fig. 1.
Detailed Description
As shown in fig. 1-4, the smoke discharging, anti-blocking, filtering and dust removing device for a boiler of the present invention comprises a smoke inlet pipe 1, a dust removing cylinder 2 and a dust storage hopper 3, wherein the lower end of the dust removing cylinder 2 is fixedly arranged on the top of the dust storage hopper 3 and is communicated with the inside of the dust storage hopper 3, the outlet of the smoke inlet pipe 1 is connected with the lower side of the dust removing cylinder 2, the upper port of the dust removing cylinder 2 is provided with a rotary cover 4, the upper side of the dust removing cylinder 2 is provided with four air outlets 5 with uniform height along the circumferential direction, the outer side of the dust removing cylinder 2 is connected with smoke outlet pipes 6 corresponding to the air outlets 5 in a one-to-one manner along the radial direction, the bottom of the rotary cover 4 is provided with a cylindrical filter screen assembly located in the dust removing cylinder 2, the outer ring of the cylindrical filter screen assembly is in contact with the inner wall of the dust removing cylinder 2 and shields all the air outlets 5, and the rotary cover 4 is provided with an airflow speed increasing mechanism and a rotary scraping mechanism for scraping the attachments on the inner wall of the dust removing cylinder 2.
An annular support plate 7 is horizontally arranged at the upper end of the dust removing cylinder 2, an annular cylinder 8 extending downwards is arranged at the outer circumferential edge of the rotary cover 4, an upper annular groove and a lower annular groove which correspond up and down are respectively arranged on the lower surface of the rotary cover 4 and the upper surface of the annular support plate 7, a plurality of supporting balls 9 are arranged in the upper annular groove and the lower annular groove in a rolling manner, a horizontal gap is arranged between the lower surface of the rotary cover 4 and the upper surface of the annular support plate 7, a sealing gasket 10 is arranged at the inner side of the supporting balls 9 in the horizontal gap, a positioning ring 11 assembled on the inner wall of an upper port of the dust removing cylinder 2 is integrally arranged in the inner circle of the sealing gasket 10, the stability of the sealing gasket 10 is ensured when the rotary cover 4 rotates, a vertical gap is arranged between the inner wall of the annular cylinder 8 and the outer ring of the annular support plate 7, a plurality of positioning bolts 12 are connected to the lower part of the annular cylinder 8 along the circumferential thread, and each positioning bolt 12 is arranged along the radial direction of the annular cylinder 8, the inner end of each positioning bolt 12 is in abutting contact with the outer wall of the dust removing barrel 2.
An outer gear ring 13 is arranged at the upper part of the excircle of the annular cylinder 8, a first motor reducer 14 is arranged at the outer side part of the dust removing cylinder 2 through a mounting frame, and a gear meshed with the outer gear ring 13 is arranged on a power output shaft of the first motor reducer 14; at least three rings 15 are provided on the upper surface of the rotary cover 4 in a circular array adjacent the edges.
The cylindrical filter screen component comprises an air filter cylinder 16, elastic pressing strips 17 and an annular mounting plate 18, wherein the annular mounting plate 18 is fixedly arranged on the lower surface of the rotary cover 4 through mounting screws, the center lines of the annular mounting plate 18, the air filter cylinder 16 and the dedusting cylinder 2 are superposed, the elastic pressing strips 17 are provided with a plurality of strips, the upper ends of the elastic pressing strips 17 are fixedly connected to the annular mounting plate 18, all the elastic pressing strips 17 are uniformly arranged along the circumferential direction of the annular mounting plate 18, the outer diameter of the air filter cylinder 16 is equal to the inner diameter of the dedusting cylinder 2, the outer ring of the air filter cylinder 16 is contacted with the inner wall of the dedusting cylinder 2 and shields all the air outlets 5, annular sealing strips 19 are fixedly arranged on the upper portion and the lower portion of the outer ring of the air filter cylinder 16 along the circumferential direction, the annular sealing strips 19 on the upper portion are positioned above the air outlets 5, the annular sealing strips 19 on the lower portion are positioned below the air outlets 5, and the lower portions of the elastic pressing strips 17 are fixedly connected with the inner wall of the air filter cylinder 16, under the action of the elastic pressing strip 17, the upper annular sealing strip 19 and the lower annular sealing strip 19 are in crimping sealing fit with the inner wall of the dust removing barrel 2.
Each flue gas outlet pipe 6 is connected with a high-pressure gas pipe 20 and a first stop valve 21, the connection position of the high-pressure gas pipe 20 and the flue gas outlet pipe 6 is located between the first stop valve 21 and the dust removing barrel 2, and the high-pressure gas pipe 20 is provided with a second stop valve 22.
A third stop valve 23 is arranged on the flue gas inlet pipe 1 and is close to the dust removing cylinder 2, and the flue gas inlet pipe 1 is obliquely arranged from high to low along the direction of the internal airflow.
The airflow speed lifting mechanism comprises a hollow shaft 24, a driving motor (not shown in the figure), fan blades 26, an upper bearing seat 27 and a lower bearing seat 28; the rotary scraping mechanism comprises a bracket 29, a driving shaft 30, a second motor reducer 31, a spiral scraper 32 and a lower rotary supporting component 43;
the hollow shaft 24 and the driving shaft 30 are both vertically arranged, the driving shaft 30 is arranged in the hollow shaft 24 in a penetrating manner, the central line of the hollow shaft 24 and the central line of the driving shaft 30 coincide with the central line of the rotating cover 4, the bracket 29 is fixedly arranged on the rotating cover 4, the top of the bracket 29 is provided with a horizontal support plate 33 through bolts, the second motor reducer 31 is fixedly arranged on the horizontal support plate 33, the horizontal support plate 33 is provided with a through hole, the main shaft of the second motor reducer 31 vertically downwards penetrates through the through hole and is in transmission connection with the upper end of the driving shaft 30 through a flange coupler 34, the hollow shaft 24 penetrates through the rotating cover 4 and is in rotation connection with the rotating cover 4 through a first bearing 35, the upper part and the lower part of the first bearing 35 are both provided with baffle plates 36, the driving motor is arranged on the rotating cover 4, and is in transmission connection with the hollow shaft 24 through a gear transmission mechanism 25 (comprising a master gear and a slave gear which are meshed with each other gears);
the upper bearing seat 27 and the lower bearing seat 28 are identical in structure and are arranged in an up-down symmetrical mode, an internal thread sleeve 37 is arranged at the top of the lower bearing seat 28, the outer portion of the lower end of the hollow shaft 24 extends into and is connected into the internal thread sleeve 37 in a threaded mode, a back nut 38 in pressure connection with the upper end of the internal thread sleeve 37 is connected to the outer portion of the hollow shaft 24 in a threaded mode, a second bearing 39 is installed in the lower bearing seat 28, the outer circle of the driving shaft 30 is connected with the lower bearing seat 28 in a rotating mode through the second bearing 39 installed in the lower bearing seat 28, an end cover 40 sleeved on the outer circle of the driving shaft 30 is arranged at the lower end of the lower bearing seat 28 through bolts, and a sealing ring 41 is arranged between the inner ring of the end cover 40 and the outer circle of the driving shaft 30;
the fan blades 26 are provided with at least three fan blades 26, the three fan blades 26 are uniformly arranged on the periphery of the lower part of the end cover 40 connected with the bottom of the lower bearing seat 28, and the fan blades 26 are positioned below the air outlet 5;
the upper end and the drive shaft 30 lower extreme fixed connection of spiral scraper blade 32, the biggest surface of revolution of spiral scraper blade 32 is cylindrical, this columniform diameter equals the internal diameter of a dust removal section of thick bamboo 2, the outside limit of spiral scraper blade 32 and the contact of 2 inner walls of a dust removal section of thick bamboo, lower rotation supporting component 43 sets up the lower port department at a dust removal section of thick bamboo 2, the inside four diagonal braces 42 that are equipped with of dust storage hopper 3, the upper end of four diagonal braces 42 all is connected with the fixed part of lower rotation supporting component 43, the lower extreme of spiral scraper blade 32 and the movable part who is connected lower rotation supporting component 43 are connected.
The lower rotary supporting component 43 comprises a fixed sleeve 44, a rotating shaft 45 and a dust cover 46, wherein the fixed sleeve 44 and the dust removing cylinder 2 are arranged on the same center line; fixed sleeving 44 lower part and four diagonal braces 42 upper end fixed connection, four diagonal braces 42 lower extremes are fixed respectively and are established on the inner wall of dust storage hopper 3, four diagonal braces 42 are arranged along the central line circumference array of a dust removal section of thick bamboo 2, rotation axis 45 upper end and 46 bottom center department fixed connection of shield, the shield 46 top is the globular structure, shield 46 bottom circumference border is equipped with dirt proof boot 47, rotation axis 45 rotates to be connected in fixed sleeving 44, fixed sleeving 44 upper portion stretches into in the annular groove that forms between rotation axis 45 and the dirt proof boot 47, between fixed sleeving 44 excircle and the dirt proof boot 47 inner wall, equal clearance fit between fixed sleeving 44 interior circle and the rotation axis 45 excircle, it has lubricated graphite powder 48 to fill between fixed sleeving 44 up end and the annular groove bottom.
A plug 59 is arranged in the left end opening of the lever 53, a positioning rod 57 is hinged to the left side of the top of the dust storage hopper 3, a hanging ring 58 is arranged on the upper portion of the left end of the lever 53, the lower end of the positioning rod 57 is bent to form a hook, and the hook is hung on the hanging ring 58. Thus, the lever 53 can be positioned, the upper end of the ejector rod 55 is inserted into the fixed sleeve 44, the vertical state is kept, and the operation can be carried out at any time when the rotating shaft 45 is lifted upwards.
The specific process of the normal operation of the invention is as follows: the flue gas that the fuel of boiler produced is discharged into dust removal section of thick bamboo 2 through flue gas inlet pipe 1, and then upwards through the filtration of air filter 16 along inside dust removal section of thick bamboo 2, does not contain the dust flue gas and discharges through gas outlet 5 and flue gas exit tube 6, enters into spray set and clears away acid gas. The driving motor drives the hollow shaft 24 to rotate at a high speed through the gear transmission mechanism 25, and the fan blades 26 arranged on the end cover 40 and connected to the bottom of the lower bearing seat 28 at the lower end of the hollow shaft 24 rotate, so that negative pressure is formed above the fan blades 26, smoke flows upwards along the dust removing cylinder 2 at an accelerated speed, and the smoke exhaust speed of the air filter cylinder 16 arranged at the air outlet 5 is ensured not to be reduced. The air filter cylinder 16 is arranged to filter dust in the flue gas, and the dust falls into the dust storage hopper 3 along the dust removal cylinder 2 under the action of self gravity.
The boiler is at normal in-process of discharging fume, and the dust can be attached to 2 inner walls of a dust removal section of thick bamboo, can start second motor reducer 31, and second motor reducer 31 drives drive shaft 30 and rotates at a slow speed, and the spiral scraper blade 32 that the drive shaft 30 lower extreme is connected also rotates thereupon, and the rotatory in-process of spiral scraper blade 32 is scraped the attached dust of 2 inner walls of a dust removal section of thick bamboo, and the dust of scraping falls into in the dust storage hopper 3. The spiral scraper 32 can be in full contact with the inside of the dust removing cylinder 2 in the rotating process, the hard plastic sleeve can be wrapped outside the spiral scraper 32, and the hard plastic sleeve is prevented from being abraded on the inner wall of the dust removing cylinder 2 when being in contact with the inner wall of the dust removing cylinder 2.
The lower end of the spiral flight 32 is provided with a lower rotation support assembly 43 that functions to support the spiral flight 32 and also functions to ensure that the spiral flight 32 is concentric up and down when rotated. The rotating shaft 45, the dust cover 46 and the dust cover 47 in the lower rotating support assembly 43 all rotate by taking the fixed sleeve 44 as a center, and in the rotating process, the lubricating graphite powder 48 can enter the gap between the inner circle and the outer circle of the rotating shaft 45, so that the lubricating effect is achieved, the rotating friction resistance between the rotating shaft 45, the dust cover 47 and the fixed sleeve 44 is reduced, and the service life of the component is prolonged. The lubricating graphite powder 48 is pressed by the upper end of the fixed sleeve 44 and the bottom of the dust cover 46, and cannot leak all the way along the gap.
The parts in contact with the flue gas are all made of acid-resistant steel, so that the corrosion of acid gas in the flue gas is avoided. The material of the air filter cartridge 16 may be paper, nonwoven fabric, glass fiber, or the like.
The upper part and the lower part of the outer surface of the air filter cylinder 16 are respectively provided with an annular sealing strip 19, and the two annular sealing strips 19 are pressed on the inner wall of the dust removing cylinder 2 through an elastic pressing strip 17 to play a good sealing role.
At regular intervals, when the inner wall of the air filter cartridge 16 has a large amount of dust adhered to the air outlet 5, the rate of exhaust smoke is affected, and at this time, the positioning bolt 12 can be unscrewed, the first motor reducer 14 is started, the first reducer motor drives the outer gear ring 13 to rotate through a gear, the outer gear ring drives the rotary cover 4 to rotate clockwise by a certain angle (for example, 45 degrees), the support ball 9 rolls in the upper annular groove and the lower annular groove, the annular mounting plate 18 connected with the bottom surface of the rotary disk also rotates along with the rotation, the elastic pressing strip 17 and the air filter cylinder 16 are driven to rotate by a certain angle, thus, the part of the air filter cylinder 16 which is not filtered is rotated to correspond to the air outlet 5, namely, a new filter screen is replaced, the exhaust speed is ensured not to be reduced, and finally, the first motor reducer 14 is closed, then, the positioning bolt 12 is screwed down, and the inner end of the positioning bolt 12 presses against the outer wall of the dust removing cylinder 2 to lock the rotating cover 4.
The four air outlets 5 are arranged, the air filter cartridge can be rotated for 1645 degrees clockwise again, if the air filter cartridge 16 needs to be cleaned reversely for a period of time, the four flue gas outlet pipes 6 can be cleaned one by one, and the normal operation of smoke discharge is not influenced. The reverse cleaning process is as follows: the driving motor is closed, the first stop valve 21 is closed, the high-pressure air pipe 20 is connected with the air compressor, the second stop valve 22 is opened, high-pressure air flow enters the flue gas outlet pipe 6, the air filter cylinder 16 is reversely sprayed with high-pressure air flow through the air outlet 5, so that dust attached to the inner arm of the air filter cylinder 16 can be removed, in order to improve the reverse cleaning effect, the high-pressure air flow can be impacted by adopting a pulse mode, and the dust attached to the inner arm of the air filter cylinder 16 is blown off and automatically falls into the dust storage hopper 3. Of course, during the boiler maintenance, the four flue gas outlet pipes 6 may be simultaneously operated to reversely clean the air filter cartridge 16, at this time, the driving motor is turned off, the first stop valve 21 and the third stop valve 23 are closed, the second stop valve 22 is opened, the high-pressure air flow enters the four flue gas outlet pipes 6 simultaneously, and the high-pressure air flow is reversely sprayed to the air filter cartridge 16 through the air outlet 5. Then the positioning bolt 12 is loosened, the first motor reducer 14 is started to drive the rotary cover 4 and the air filter cylinder 16 to rotate reversely for 45 degrees, and then the cleaning is stopped, and the cleaning is carried out by reverse high-pressure air flow. Or during the high-pressure airflow reverse cleaning process, the first motor reducer 14 drives the rotary cover 4 and the air filter cylinder 16 to rotate continuously, so that the air filter cylinder 16 can be conveniently and quickly cleaned reversely. And after reverse cleaning, closing the first motor reducer 14 and screwing the positioning bolt 12.
When reverse cleaning of the air filter cartridge 16 by the high pressure air stream is not effective, a new air filter cartridge 16 may need to be replaced. The specific replacement process is as follows: firstly, the positioning bolt 12 is unscrewed, the inner end of the positioning bolt 12 retracts into the annular cylinder 8, a steel wire rope is used for connecting a lifting ring 15 on the rotary cover 4, a lifting hook of a lifting device is used for hanging the upper end of the steel wire rope, a door body 51 on the left side of the dust storage hopper is opened, the positioning rod 57 is removed, a plug 59 is taken out, a stress rod is inserted into the left end of a lever 53, the left end of the stress rod extends out of the dust storage hopper, the stress rod is pressed downwards when the lifting device lifts the rotary disk upwards, the lever 53 takes the transverse rod 52 as a fulcrum, and the left end of the lever 53 moves upwards, so that a push rod 55 is driven to lift the rotary shaft 45 and the dust cover 46 upwards and move upwards together with the spiral scraper 32 until the lower end of the rotary shaft 45 is separated from the fixed sleeve 44. The push rod 55 pushes the rotating shaft 45 upward to avoid the situation that the spiral scraper 32 is pulled apart due to the inclined pulling force (not vertically upward) when the dust cap 46 is pulled upward by the spiral scraper 32. Until the rotating shaft 45 is lifted out of the upper part of the dust removing cylinder 2, the mounting screws are disassembled, the annular mounting plate 18 and the air filter cylinder 16 are taken down, the annular mounting plate 18 and the air filter cylinder 16 are replaced by new ones, and then the operation conditions of other parts are overhauled. Then the component is hoisted and enters the dust removing cylinder 2, when a new air filter cylinder 16 enters the upper port of the dust removing cylinder 2, the lower end of the air filter cylinder 16 is compressed inwards to overcome the elasticity of the elastic pressing strip 17, and after the lower end of the air filter cylinder 16 enters the dust removing cylinder 2, the downward pressure of the rotary cover 4 can be applied, so that the air filter cylinder 16 can move downwards more easily. When the rotating shaft 45 is installed in the fixed sleeve 44, a flat plate is laid on the top of the conical part in the dust storage hopper, a worker can enter the dust storage hopper through the opening on the left side of the upper part of the dust storage hopper, the worker stands on the flat plate, a layer of lubricating graphite powder 48 is poured on the upper fixed end face, and then the worker holds the dustproof sleeve 47 to enable the rotating shaft 45 to be correspondingly inserted into the fixed sleeve 44. After the upper annular groove on the rotary cover 4 is contacted and matched with the supporting ball 9, the positioning bolt 12 is screwed down, and the air filter cylinder 16 is replaced and related maintenance operation is completed.
According to the invention, the hollow shaft 24 is in rotating fit with the upper part and the lower part of the driving shaft 30, the outer part of the hollow shaft 24 is rotatably connected to the rotating cover 4 through the first bearing, and the upper end of the hollow shaft 24 is in coaxial transmission connection with the first speed reducing motor, so that not only can the coaxiality of the hollow shaft 24 and the driving shaft 30 be determined, but also the rotating positioning has good reliability.
When the air filter cylinder 16 is cleaned reversely, the third stop valve 23 is closed to prevent dust from flowing back into the boiler through the flue gas inlet pipe 1, and the flue gas inlet pipe 1 is inclined from high to low along the internal airflow direction, so that when the inner wall of the dust removing cylinder 2 is scraped, the dust is prevented from entering the boiler along the flue gas inlet pipe 1. Flue gas advances pipe 1 and is shorter, and the adnexed dust clearance accessible of its inner wall is cleared up the operation with the ring flange that the boiler is connected, and the dust that its inner wall cleared up out can fall into in the dust storage hopper 3 by the tilting.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (8)
1. Stifled filter dust collector is prevented in boiler exhaust fume, its characterized in that: the device comprises a flue gas inlet pipe, a dust removing cylinder and a dust storage hopper, wherein the lower end of the dust removing cylinder is fixedly arranged at the top of the dust storage hopper and is communicated with the inside of the dust storage hopper, an outlet of the flue gas inlet pipe is connected with the lower side of the dust removing cylinder, a rotary cover is arranged at an upper port of the dust removing cylinder, at least two gas outlets with the same height are arranged at the upper side of the dust removing cylinder along the circumferential direction, flue gas outlet pipes which are in one-to-one correspondence with the gas outlets are connected to the outer side of the dust removing cylinder along the radial direction, a cylindrical filter screen assembly positioned in the dust removing cylinder is arranged at the bottom of the rotary cover, the outer ring of the cylindrical filter screen assembly is in contact with the inner wall of the dust removing cylinder and shields all the gas outlets, and an airflow flow speed lifting mechanism and a rotary scraping mechanism for scraping attachments on the inner wall of the dust removing cylinder are arranged on the rotary cover;
the cylindrical filter screen component comprises an air filter cylinder, a plurality of elastic pressing strips and an annular mounting plate, wherein the annular mounting plate is fixedly arranged on the lower surface of the rotary cover through mounting screws, the center lines of the annular mounting plate, the air filter cylinder and the dust removing cylinder are overlapped, the upper ends of the elastic pressing strips are fixedly connected onto the annular mounting plate, all the elastic pressing strips are uniformly arranged along the circumferential direction of the annular mounting plate, the outer diameter of the air filter cylinder is equal to the inner diameter of the dust removing cylinder, the outer ring of the air filter cylinder is in contact with the inner wall of the dust removing cylinder and shields all air outlets, annular sealing strips are fixedly arranged on the upper portion and the lower portion of the outer ring of the air filter cylinder along the circumferential direction, the annular sealing strips on the upper portion are positioned above the air outlets, the annular sealing strips on the lower portion are positioned below the air outlets, and the lower portions of the elastic pressing strips are fixedly connected with the inner wall of the air filter cylinder, under the action of the elastic pressing strip, the upper annular sealing strip and the lower annular sealing strip are in compression joint sealing fit with the inner wall of the dust removing cylinder;
the airflow velocity lifting mechanism comprises a hollow shaft, a driving motor, fan blades, an upper bearing seat and a lower bearing seat; the rotary scraping mechanism comprises a support, a driving shaft, a second motor reducer, a spiral scraper and a lower rotary supporting assembly;
the hollow shaft and the driving shaft are vertically arranged, the driving shaft penetrates through the hollow shaft, the central line of the driving shaft is superposed with the central line of the rotating cover, the support is fixedly arranged on the rotating cover, the top of the support is provided with a horizontal support plate through a bolt, the second motor reducer is fixedly arranged on the horizontal support plate, the horizontal support plate is provided with a through hole, a main shaft of the second motor reducer vertically downwards penetrates through the through hole and is in transmission connection with the upper end of the driving shaft through a flange coupler, the hollow shaft penetrates through the rotating cover and is in rotational connection with the rotating cover through a first bearing, the upper part and the lower part of the first bearing are both provided with a baffle plate, the driving motor is arranged on the rotating cover, and the driving motor is in transmission connection with the hollow shaft through a gear transmission mechanism;
the upper bearing seat and the lower bearing seat are identical in structure and are arranged in an up-down symmetrical mode, an internal thread sleeve is arranged at the top of the lower bearing seat, the outer portion of the lower end of the hollow shaft extends into the internal thread sleeve and is in threaded connection with the internal thread sleeve, a back nut in compression joint with the upper end of the internal thread sleeve is in threaded connection with the outer portion of the hollow shaft, a second bearing is installed in the lower bearing seat, the outer circle of the driving shaft is in rotary connection with the lower bearing seat through the second bearing installed in the lower bearing seat, an end cover sleeved on the outer circle of the driving shaft is arranged at the lower end of the lower bearing seat through a bolt, and a sealing ring is arranged between the inner ring of the end cover and the outer circle of the driving shaft;
the fan blades are provided with at least three fan blades, the three fan blades are uniformly arranged on the periphery of the lower part of the end cover connected with the bottom of the lower bearing seat, and the fan blades are positioned below the air outlet;
the upper end and the drive shaft lower extreme fixed connection of spiral scraper blade, the biggest surface of revolution of spiral scraper blade are cylindrical, and this columniform diameter equals the internal diameter of a dust removal section of thick bamboo, the outside limit and the contact of a dust removal section of thick bamboo inner wall of spiral scraper blade, and lower rotation supporting component sets up the lower port department at a dust removal section of thick bamboo, stores up the inside four diagonal braces that are equipped with of dirt fill, and the upper end of four diagonal braces all is connected with lower rotation supporting component's fixed part, and the lower extreme of spiral scraper blade is connected with the movable part that is connected lower rotation supporting component.
2. The boiler smoke anti-clogging filtering dust-removing device according to claim 1, characterized in that: an annular extension board is horizontally arranged at the upper end of the dust removing cylinder, an annular cylinder extending downwards is arranged at the outer side circumferential edge of the rotary cover, an upper annular groove and a lower annular groove which correspond up and down are respectively formed in the lower surface of the rotary cover and the upper surface of the annular extension board, a plurality of supporting balls are arranged in the upper annular groove and the lower annular groove in a rolling manner, a horizontal gap is formed between the lower surface of the rotary cover and the upper surface of the annular extension board, a sealing gasket is arranged on the inner side of the supporting balls in the horizontal gap, a positioning ring assembled on the inner wall of an upper port of the dust removing cylinder is integrally arranged in the inner circle of the sealing gasket, a vertical gap is formed between the inner wall of the annular cylinder and the outer ring of the annular extension board, a plurality of positioning bolts are connected to the lower portion of the annular extension board along the circumferential thread, each positioning bolt is arranged along the radial direction of the annular cylinder, and the inner end of each positioning bolt is in jacking contact with the outer wall of the dust removing cylinder.
3. The boiler smoke anti-clogging filtering dust-removing device according to claim 2, characterized in that: the upper part of the excircle of the annular cylinder is provided with an outer gear ring, the outer side part of the dust removing cylinder is provided with a first motor reducer through a mounting frame, and a power output shaft of the first motor reducer is provided with a gear meshed with the outer gear ring; at least three rings are arranged on the upper surface of the rotary cover in a circular array near the edge.
4. The boiler smoke anti-clogging filtering dust-removing device according to claim 1, characterized in that: each flue gas outlet pipe is connected with a high-pressure gas pipe and a first stop valve, the connection position of the high-pressure gas pipe and the flue gas outlet pipe is located between the first stop valve and the dust removing barrel, and the high-pressure gas pipe is provided with a second stop valve.
5. The boiler smoke anti-clogging filtering dust-removing device according to claim 4, characterized in that: the flue gas inlet pipe is provided with a third stop valve at the position adjacent to the dust removing cylinder, and the flue gas inlet pipe is obliquely arranged from high to low along the direction of the internal airflow.
6. The boiler smoke anti-clogging filtering dust-removing device according to claim 1, characterized in that: the lower rotating support component comprises a fixed sleeve, a rotating shaft and a dust cover, and the fixed sleeve and the dust removing cylinder are arranged on the same central line; fixed sleeving lower part and four diagonal braces upper end fixed connection, four diagonal braces lower extremes are fixed respectively and are established on the inner wall that stores up the dirt fill, four diagonal braces are arranged along the central line circumference array of dust removal section of thick bamboo, rotation axis upper end and the fixed connection of shield bottom center department, the shield top is the globular structure, shield bottom circumference border is equipped with the dirt proof boot, the rotation axis rotates to be connected in fixed bushing, fixed sleeving upper portion stretches into in the annular groove that forms between rotation axis and the dirt proof boot, between fixed sleeving excircle and the dirt proof boot inner wall, equal clearance fit between the interior circle of fixed sleeving and the rotation axis excircle, it has lubricated graphite powder to fill between fixed sleeving up end and the annular groove bottom.
7. The boiler smoke anti-clogging filtering dust-removing device according to claim 6, characterized in that: store up the dirt fill and be upper portion quadrangular form, the lower part is quadrangular pyramid's box structure, it is equipped with the discharge tube to store up dirt fill bottom, be equipped with the discharge valve on the discharge tube, it is equipped with a body to store up dirt fill upper portion left side, it is equipped with a horizontal pole to fix between two left diagonal braces in the dirt fill, it is connected with a lever to rotate on the horizontal pole, the lever adopts side's pipe to make, lever left side portion is seted up penetrating guide hole and penetrating perforation from top to bottom around one along length direction, guide hole and perforation intercommunication, guide hole length is greater than perforation length, wear to be equipped with the ejector pin of vertical setting in the perforation, the ejector pin lower part is rotated through the round pin axle that the level set up and is connected in the guide hole, the ejector pin upper end stretches into in the fixed cover.
8. The boiler smoke anti-clogging filtering dust-removing device according to claim 6, characterized in that: a plug is arranged in a left port of the lever, a positioning rod is hinged to the left side of the top of the dust storage hopper, a hanging ring is arranged on the upper portion of the left end of the lever, the lower end of the positioning rod is bent to form a hook, and the hook is connected with the hanging ring in a hanging mode.
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| CN202010047527.5A CN111237792B (en) | 2020-01-16 | 2020-01-16 | Smoke-discharging anti-blocking filtering dust-removing device for boiler |
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| CN202010047527.5A CN111237792B (en) | 2020-01-16 | 2020-01-16 | Smoke-discharging anti-blocking filtering dust-removing device for boiler |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111878842B (en) * | 2020-08-07 | 2023-07-14 | 山东创佳新能源科技有限公司 | Crude oil heating device with anti-blocking structure |
| CN112354284A (en) * | 2020-10-10 | 2021-02-12 | 胡光翠 | Chemical industry boiler waste gas tubular dust collector with pneumatic clearance structure |
| CN112690324A (en) * | 2020-12-28 | 2021-04-23 | 巫溪县红池腊鲜食品有限公司 | Self-cleaning type smoking barrel |
| CN113101893B (en) * | 2021-04-30 | 2023-06-20 | 佛山市顺德区阿波罗环保器材有限公司 | Production line for activated carbon treatment |
| CN114699887A (en) * | 2022-05-06 | 2022-07-05 | 江苏瑞立环保工程股份有限公司 | Industrial flue gas desulfurization and denitrification device and method capable of rapidly and uniformly receiving reaction gas |
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