CN213977765U - Converter flue gas full-dry type dust collection waste heat recovery device - Google Patents
Converter flue gas full-dry type dust collection waste heat recovery device Download PDFInfo
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- CN213977765U CN213977765U CN202022515356.2U CN202022515356U CN213977765U CN 213977765 U CN213977765 U CN 213977765U CN 202022515356 U CN202022515356 U CN 202022515356U CN 213977765 U CN213977765 U CN 213977765U
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Abstract
The embodiment of the utility model discloses a converter flue gas full-dry type dust collection waste heat recovery device, which comprises a recovery dust removal pipeline connected with an exhaust port of a converter, wherein the interior of the recovery dust removal pipeline is sequentially provided with a particle adhesion prevention mechanism and a dust collection mechanism from bottom to top, the exterior of the recovery dust removal pipeline is provided with a plurality of uniformly distributed heat exchange mechanisms, and the tail end of the recovery dust removal pipeline is connected with a gas collection tank through a fine dust removal chamber; the dust collection mechanism comprises two filter components which are arranged in the recovery dust removal pipeline and are stacked mutually, the two filter components are used for carrying out secondary filtering and dust removal on the smoke subjected to primary cooling and filtering, the two filter components are used for cleaning and collecting particles accumulated on the filter components and the recovery dust removal pipeline in a mutually crossed and meshed mode, and the two filter components are used for cleaning the accumulated particles on the recovery dust removal pipeline when being mutually independent and parallel; this scheme collection flue gas filters, sieve clearance and flue gas recovery pipeline inner wall clearance in an organic whole, and it is convenient to realize, easy operation.
Description
Technical Field
The embodiment of the utility model provides a flue gas treatment technical field, concretely relates to converter flue gas full-dry type collection dirt waste heat recovery device.
Background
The converter steelmaking uses molten iron, scrap steel and ferroalloy as main raw materials, does not need external energy, and completes the steelmaking process in the converter by means of heat generated by physical heat of molten iron and chemical reaction among molten iron components. The converter is divided into acid and alkaline according to refractory materials, and top blowing, bottom blowing and side blowing are carried out according to the positions of gas blown into the converter; according to the gas types, the converter comprises an air separation converter and an oxygen converter. The basic oxygen top-blown converter and the top-bottom combined blown converter are the most commonly used steelmaking equipment due to high production speed, high yield, high single-furnace yield, low cost and low investment. The converter is mainly used for producing carbon steel, alloy steel and smelting copper and nickel.
In the process of steelmaking, a converter can generate a large amount of brown flue gas, the main components of which are iron oxide dust particles, high-concentration carbon monoxide gas and the like, so that the brown flue gas must be purified, recycled and comprehensively utilized to prevent environmental pollution, wherein the iron oxide dust particles obtained from recycling equipment can be used for steelmaking; carbon monoxide can be used as a chemical raw material or a fuel; the heat brought out by the flue gas can be used for generating steam as a byproduct.
However, the existing waste heat recovery dust removal device has the following defects:
(1) the high-temperature hot gas generated by the converter contains molten iron oxide particles, and the iron oxide particles are easy to stick in a pipeline of the waste heat recovery dust removal device to form a shielding layer, so that the efficiency of recovering the heat of the flue gas is influenced;
(2) iron oxide particle adhesion is at the pipeline inner wall, the clearance that can't be quick, and the granule is piled up for a long time simultaneously and is blockked up the sieve, influences normal flue gas filtration operation.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a converter flue gas full-dry type collection dirt waste heat recovery device to solve among the prior art ferric oxide granule adhesion at the pipe inner wall, unable quick clearance, the granule is piled up for a long time simultaneously and is blockked up the sieve, influences normal flue gas filtration operation's problem.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
a converter flue gas full-dry type dust collection waste heat recovery device comprises a recovery dust removal pipeline connected with an exhaust port of a converter, wherein a particle adhesion prevention mechanism and a dust collection mechanism are sequentially arranged inside the recovery dust removal pipeline from bottom to top, a plurality of uniformly distributed heat exchange mechanisms are arranged outside the recovery dust removal pipeline, the tail end of the recovery dust removal pipeline is connected with a fine dust removal chamber, and a gas outlet of the fine dust removal chamber is connected with a gas collection tank;
the dust collection mechanism comprises two mutually-stacked filter components arranged inside the recycling dust removal pipeline, the two filter components are used for carrying out secondary filtering and dust removal on the flue gas subjected to primary cooling and filtering, and the two filter components are used for cleaning and collecting the filter components and particles stacked on the recycling dust removal pipeline in an intercrossing and meshing mode, and the two filter components are used for cleaning the particles stacked on the recycling dust removal pipeline when mutually independent and parallel.
As a preferred aspect of the present invention, the filter member includes two parallel first filter layer towers and two parallel second filter layer towers that are arranged side by side, the first filter layer towers and the second filter layer towers work independently of each other, and the first filter layer towers and the second filter layer towers rub against each other through crossing each other to clean up the particles piled up on the first filter layer towers and the second filter layer towers.
As an optimized scheme of the utility model, retrieve dust removal pipeline from the bottom up and divide into one-level cooling dust removal section and second grade cooling dust collection section in proper order, and the diameter of second grade cooling dust collection section equals the width sum of first filtering layer tower and the mutually independent during operation of second filtering layer tower, the up end of second grade cooling dust collection section is equipped with embedded plectane, and passes embedded plectane is equipped with just right the free bearing of first filtering layer tower and second filtering layer tower, the lower terminal surface of second grade cooling dust collection section is equipped with the recess that sinks, movable mounting has passive rotating ring in the recess that sinks, the lower extreme of first filtering layer tower and second filtering layer tower passes through the free bearing and installs on the passive rotating ring, first filtering layer tower and second filtering layer tower pass through respectively the free bearing independently rotates, embedded plectane is through driving the passive rotating ring is rotatory in order to incite somebody first filtering layer tower with the second filters layer tower The layer tower rotates synchronously.
As an optimized scheme of the utility model, first filter layer tower is including installing first rotating crankshaft, fixed mounting on the loose bearing are in first thin sieve on the first rotating crankshaft, and fixed mounting are in first thick sieve on the first rotating crankshaft, first thin sieve and first thick sieve are installed in turn on the first rotating crankshaft, and the erection space of first thin sieve and first thick sieve is according to big interval and booth apart from alternate arrangement.
As an optimized scheme of the utility model, the second filter layer tower is including installing second rotating crankshaft, fixed mounting on the loose bearing are in the thick sieve of the last second of second rotating crankshaft, and fixed mounting are in the thin sieve of the last second of second rotating crankshaft, and the thin sieve of second and the thick sieve of second are installed in turn the second rotating crankshaft, the mounted position of the thin sieve of second is just right the booth interval of first thin sieve and first thick sieve, the mounted position of the thick sieve of second is just right the booth interval of first thin sieve and first thick sieve.
As an optimized scheme of the utility model, the lower extreme of second grade cooling collection dirt section is equipped with half-circular arc and cuts the hole, passes half-circular arc cuts the hole overcoat and is equipped with sealed clamp, and half-circular arc cuts the downthehole ann and inserts the collecting board that is used for collecting refrigerated filter particle, first rotation bent axle with the upper end of second rotation bent axle is equipped with and is used for fixing the fixing bolt of second grade cooling collection dirt section up end panel, second grade cooling collection dirt section with connect through the breather pipe between the one-level cooling collection dirt section, second grade cooling collection dirt section with breather pipe's hookup location is located the inside of passive rotation ring.
As an optimized scheme of the utility model, the mounted position of first thick sieve is just right the big interval of the thin sieve of second and the thick sieve of second, and the mounted position of first thin sieve is just right the booth of the thin sieve of second and the thick sieve of second is apart from, the range upon range of formula installation of the thin sieve of first thick sieve, the thin sieve of second, the thin sieve of first thin sieve and the thick sieve of second is arranged, and the diameter of the thick sieve of first thick sieve, the thin sieve of second, the thin sieve of first thin sieve and second is the same.
As a preferred aspect of the present invention, the curvature of the first rotating crankshaft and the curvature of the second rotating crankshaft are the same, and the curvature of the first rotating crankshaft is the same as the diameter of the first thick sieve plate, and the maximum distance between the first rotating crankshaft and the second rotating crankshaft is the same as the diameter of the first thick sieve plate.
As an optimized scheme of the utility model, the upper surface of the thick sieve of first thick sieve, the thin sieve of second, the thin sieve of first thin sieve and the thick sieve of second all is equipped with the friction arch that is used for cleaing away accumulational granule to be equipped with on the side curved surface of the thick sieve of first thick sieve, the thin sieve of second, the thin sieve of first thin sieve and the thick sieve of second and be used for cleaing away the friction arch of piling up the granule on the second grade cooling dust collecting section inner wall.
The utility model discloses an embodiment has following advantage:
the utility model discloses a structure and the mounting means design to filtering the sieve, collect the flue gas and filter, sieve clearance and flue gas recovery pipeline inner wall clearance are in an organic whole, need not to dismantle heat transfer mechanism and flue gas recovery pipeline and carry out granule clearance recovery work, it is convenient to realize, and easy operation, and sealing performance is good, long service life is high, on the one hand, through the independent relative cross rotation of filtering the sieve, realize the dust cleaning work to filtering the sieve, thereby avoid the granule in the flue gas to block up filter screen hole, on the other hand, through the whole rotation operation to filtering the sieve, realize the clearance work to flue gas transmission pipeline, thereby avoid the granule in the flue gas to pile up the inner wall at transmission pipeline with influence waste heat recovery efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic side sectional view of a filter assembly according to an embodiment of the present invention;
FIG. 3 is a schematic structural view showing two parallel filtering layer towers according to the embodiment of the present invention;
fig. 4 is a schematic structural view of the second filtering layer tower rotating friction in the embodiment of the present invention;
fig. 5 is a schematic structural view of the first filtering layer tower rotating friction in the embodiment of the present invention;
fig. 6 is a schematic view of an installation structure of a filter screen plate according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a two-stage cooling dust collecting section according to an embodiment of the present invention.
In the figure: 1-recovering a dust removal pipeline; 2-a particle adhesion prevention mechanism; 3-a filter element; 4-a heat exchange mechanism; 5-fine dust removal chamber; 6-a gas collecting tank; 7-an embedded circular plate; 8-a movable bearing; 9-sinking the groove; 10-passive rotating ring; 11-semi-circular arc cutting; 12-sealing the clamp; 13-a collection plate; 14-a fixing bolt; 15-friction protrusions;
101-first-stage cooling and dedusting section; 102-a secondary temperature reduction dust collection section; 103-a vent line;
301-a first filtration layer column; 302-a second filter bed column;
3011-a first rotating crankshaft; 3012-a first thin screen deck; 3013-a first thick screen deck;
3021-a second rotating crankshaft; 3022-second thick deck; 3023-second thin screen deck.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the utility model provides a converter flue gas full-dry type collection dirt waste heat recovery device, this embodiment is through the design of filtering the sieve, on the one hand, rotate through the independent relative cross of filtering the sieve, realize the dust removal work to filtering the sieve to avoid the granule in the flue gas to block up filter screen hole, on the other hand, through the whole rotation operation to filtering the sieve, realize the cleaning work to flue gas transmission pipeline, thereby avoid the granule in the flue gas to pile up the inner wall in transmission pipeline with influence waste heat recovery efficiency.
Specifically include the recovery dust removal pipeline 1 of being connected with the gas vent of converter, the inside from the bottom up of retrieving dust removal pipeline 1 is equipped with in proper order and prevents granule adhesion mechanism 2 and collection dirt mechanism, and the externally mounted of retrieving dust removal pipeline 1 has a plurality of evenly distributed's heat transfer mechanism 4, and the end-to-end connection of retrieving dust removal pipeline 1 has smart clean room 5, and the gas outlet of smart clean room 5 is connected with gas collection tank 6.
Converter flue gas is through two coarse filtration handles and a fine filtration processing to and a lot of steam recovery processing in retrieving dust removal pipeline 1, realized waste heat recovery and dust removal collection dirt work, and the dust removal work is the full dry-type, the influence of anhydrous vapour to guarantee the humidity of the carbon monoxide after filtering, carbon monoxide is collected and can directly be put into use in gas collection tank 6.
Dust collection mechanism is including setting up at two inside filter component 3 that stack up each other of retrieving dust removal pipeline 1, and two filter component 3 are used for carrying out the secondary filter with the flue gas after the one-level cooling filtration and remove dust to two filter component 3 are through intercrossing meshing's mode in order to clear up filter component 3 and retrieve the collection of accumulational granule on the dust removal pipeline 1, two filter component 3 mutually independent when juxtaposing will it clears up to retrieve the granule of piling up on the dust removal pipeline 1.
As shown in fig. 2 and fig. 6, the filter member 3 includes two first and second filter layer towers 301 and 302 arranged in parallel, the first and second filter layer towers 301 and 302 operate independently of each other, and the first and second filter layer towers 301 and 302 clean the accumulated particles on the first and second filter layer towers 301 and 302 by cross-rubbing each other, and the first and second filter layer towers 301 and 302 perform a dust collecting operation on the accumulated particles on the dust collecting pipeline 1 while rotating synchronously.
The filter element 3 in this embodiment realizes the particle filtration operation in the flue gas through the filtration sieve board of range upon range of formula, then again through the structural design of filter element 3 self, independently rotate first filtering layer tower 301 and second filtering layer tower 302, two layers of tower intercrossing friction are in order to clear up the granule of piling up on first filtering layer tower 301 and the second filtering layer tower 302, also rotate through first filtering layer tower 301 and second filtering layer tower 302 synchronous simultaneously, in order to clear up the granule of adhesion on retrieving dust removal pipeline 1 inner wall.
Wherein, retrieve dust removal pipeline 1 from the bottom up and divide into one-level cooling dust removal section 101 and second grade cooling dust collection section 102 in proper order, and the diameter of second grade cooling dust collection section 102 equals the width sum of first filtering layer tower 301 and the mutual independent work of second filtering layer tower 302, when first filtering layer tower 301 and second filtering layer tower 302 synchronous revolution, the central point that first filtering layer tower 301 and second filtering layer tower 302 are connected puts the coincidence with the central point of second grade cooling dust collection section 102 promptly, when the range upon range of height of first filtering layer tower 301 and second filtering layer tower 302 and the heat transfer position coincidence of heat transfer mechanism 4, realize promptly the timely clearance to second grade cooling dust collection section 102, in order to improve heat transfer mechanism 4's heat exchange efficiency.
The up end of second grade cooling collection dirt section 102 is equipped with embedded plectane 7, the upper end of first filtering layer tower 301 and second filtering layer tower 302 is installed on embedded plectane 7 through loose bearing 8, the lower terminal surface of second grade cooling collection dirt section 102 is equipped with the recess 9 that sinks, movable mounting has passive rotation ring 10 in the recess 9 that sinks, the lower extreme of first filtering layer tower 301 and second filtering layer tower 302 passes through loose bearing 8 and installs on passive rotation ring 10, first filtering layer tower 301 and second filtering layer tower 302 are respectively through loose bearing 8 independent rotation, embedded plectane 7 is rotatory in order to rotate first filtering layer tower 301 and second filtering layer tower 302 synchronous rotation through driving passive rotation ring 10.
The first filtering layer tower 301 and the second filtering layer tower 302 rotate around the movable bearings 8 arranged at the upper end and the lower end respectively, and in the rotating process, due to the stacked design, each filtering plate not only plays a role in filtering smoke particles, but also realizes self-cleaning of the filtering plates in a cross friction mode.
When the first filtering layer tower 301 and the second filtering layer tower 302 are fixed and can not rotate independently, the synchronous rotation of the first filtering layer tower 301 and the second filtering layer tower 302 can be completed by pushing the embedded circular plate 7 to rotate, and because the diameter of the secondary cooling dust collection section 102 is equal to the sum of the widths of the first filtering layer tower 301 and the second filtering layer tower 302 when working independently, the inner wall cleaning work of the secondary cooling dust collection section 102 is realized at the moment.
The first filtering layer tower 301 includes a first rotating crankshaft 3011 mounted on the movable bearing 8, a first thin screening plate 3012 fixedly mounted on the first rotating crankshaft 3011, and a first thick screening plate 3013 fixedly mounted on the first rotating crankshaft 3011, the first thin screening plate 3012 and the first thick screening plate 3013 being alternately mounted on the first rotating crankshaft 3011, and the mounting pitches of the first thin screening plate 3012 and the first thick screening plate 3013 being alternately arranged at large pitches and small pitches.
As shown in fig. 3 to 5, the first rotating crankshaft 3011 is in a zigzag structure, and rotates around the mounting point with the movable bearing 8, and the first filtering layer tower 301 is designed as a sieve plate with alternating thickness, so that the number of sieve plates used is reduced under the condition that the height of the secondary cooling dust collecting section 102 is constant, and the efficiency of cleaning the inner wall of the secondary cooling dust collecting section 102 is improved.
The second filtering layer tower 302 includes a second rotating crankshaft 3021 mounted on the movable bearing 8, a second thick screening deck 3022 fixedly mounted on the second rotating crankshaft 3021, and a second thin screening deck 3023 fixedly mounted on the second rotating crankshaft 3021, and the second thin screening deck 3023 and the second thick screening deck 3022 are alternately mounted on the second rotating crankshaft 3021, with the mounting position of the second thin screening deck 3023 facing the small pitch of the first thin screening deck 3012 and the first thick screening deck 3013, and the mounting position of the second thick screening deck 3022 facing the large pitch of the first thin screening deck 3012 and the first thick screening deck 3013.
The sieve plates on the first rotary crankshaft 3011 and the second rotary crankshaft 3021 are distributed in a crossed and stacked mode, so that the sieve plates are dense up and down, the full-face filtration of the smoke is realized, and meanwhile, the full cleaning of the secondary cooling dust collection section 102 is realized through thickness complementation.
The installation position of the first thick screen deck 3013 is opposed to the large pitch of the second thin screen deck 3023 and the second thick screen deck 3022, and the installation position of the first thin screen deck 3012 is opposed to the small pitch of the second thin screen deck 3023 and the second thick screen deck 3022, the first thick screen deck 3013, the second thin screen deck 3023, the first thin screen deck 3012, and the second thick screen deck 3022 are arranged in a stacked arrangement, and the diameters of the first thick screen deck 3013, the second thin screen deck 3023, the first thin screen deck 3012, and the second thick screen deck 3022 are the same.
The curvature of the first rotary crankshaft 3011 and the second rotary crankshaft 3021 is the same, and the curvature of the first rotary crankshaft 3011 is the same as the 1/4 diameter of the first thick screen deck 3013, and the maximum distance between the first rotary crankshaft 3011 and the second rotary crankshaft 3021 is the same as the diameter of the first thick screen deck 3013.
It should be added that when the first rotating crankshaft 3011 and the second rotating crankshaft 3021 are at the farthest distance, the first thin sieve plate 3012 and the first thick sieve plate 3013 respectively contact with the edge of the second thin sieve plate 3023 and the edge of the second thick sieve plate 3022, and at this time, the filtering area of all the sieve plates is the largest, so that the normal filtering and dedusting operation for the flue gas is realized.
As shown in fig. 7, the upper ends of the first rotary crankshaft 3011 and the second rotary crankshaft 3021 are provided with fixing bolts 14 for fixing to the upper end panel of the secondary dust-collecting cooling section 102, the secondary dust-collecting cooling section 102 is connected to the primary dust-collecting cooling section 101 through an air duct 103, and the connection position of the secondary dust-collecting cooling section 102 and the air duct 103 is located inside the passive rotary ring 10.
After the first rotary crankshaft 3011 and the second rotary crankshaft 3021 are fixed on the upper end panel of the secondary cooling dust collecting section 102 by fixing bolts, the inner part of the secondary cooling dust collecting section 102 can be cleaned by pushing the embedded circular plate 7.
When the first rotary crankshaft 3011 and the second rotary crankshaft 3021 rotate, the upper and lower ends thereof rotate according to the installation position of the movable bearing 8, respectively, and the first thin sieve plate 3012 and the first thick sieve plate 3013 rub with the second thin sieve plate 3023 and the second thick sieve plate 3022 in a crossing manner, respectively, so that particles adhered to each sieve plate are cleaned. The upper surfaces of the first thick sieve plate 3013, the second thin sieve plate 3023, the first thin sieve plate 3012 and the second thick sieve plate 3022 are all provided with friction protrusions 15 for removing accumulated particles, and the side curved surfaces of the first thick sieve plate 3013, the second thin sieve plate 3023, the first thin sieve plate 3012 and the second thick sieve plate 3022 are provided with friction protrusions 15 for removing accumulated particles on the inner wall of the secondary temperature reduction dust collection section 102.
The lower extreme of second grade cooling collection dirt section 102 is equipped with half-circular arc and cuts hole 11, passes half-circular arc and cuts hole 11 overcoat and be equipped with sealed clamp 12 to half-circular arc cuts the collection board 13 that has the refrigerated filter particle of collection of inserting in the hole 11, when collection dirt operation, opens sealed clamp 13, passes through collection board 13 with the granule of friction whereabouts and collects, collects the completion back, takes out collection board 13, and fixed seal clamp 13 cuts hole 11 with half-circular arc and seals, prevents that the flue gas from escaping.
In addition, the utility model also provides a converter flue gas full-dry type collection dirt waste heat recovery method, including following step:
step 100, after cooling and primary filtering for multiple times, the high-temperature flue gas enters a dust collection mechanism to be subjected to secondary filtering and dust removal treatment;
step 200, oppositely installing the two groups of filter layer towers, and keeping the horizontal distance of the two groups of filter layer towers at the farthest distance to realize flue gas filtration;
step 300, independently rotating the two groups of filter layer towers, and removing and collecting particles adhered to the filter layer towers;
and 400, keeping the two groups of filter layer towers at the farthest distance and simultaneously rotating to remove particles adhered to the inner wall of the pipeline where the dust collecting mechanism is located.
This embodiment is through the structure and the mounting means design to filtering the sieve, collect the flue gas and filter, sieve clearance and flue gas recovery pipeline inner wall clearance are in an organic whole, need not to dismantle heat transfer mechanism and flue gas recovery pipeline and carry out granule clearance recovery work, it is convenient to realize, and easy operation, and sealing performance is good, long service life is high, on the one hand, rotate through the independent relative alternately of filtering the sieve, realize the dust cleaning work to filtering the sieve, thereby avoid the granule in the flue gas to block up filter screen hole, on the other hand, through the whole rotation operation to filtering the sieve, realize the clearance work to flue gas transmission pipeline, thereby avoid the granule in the flue gas to pile up the inner wall at transmission pipeline with the influence waste heat recovery efficiency.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. The converter flue gas full-dry type dust collection waste heat recovery device is characterized by comprising a recovery dust removal pipeline (1) connected with an exhaust port of a converter, wherein a particle adhesion prevention mechanism (2) and a dust collection mechanism are sequentially arranged inside the recovery dust removal pipeline (1) from bottom to top, a plurality of uniformly distributed heat exchange mechanisms (4) are mounted outside the recovery dust removal pipeline (1), the tail end of the recovery dust removal pipeline (1) is connected with a fine dust removal chamber (5), and a gas outlet of the fine dust removal chamber (5) is connected with a gas collection tank (6);
the dust collection mechanism is including setting up retrieve two inside filter component (3) that stack up each other of dust removal pipeline (1), two filter component (3) are used for carrying out the secondary filter dust removal with the flue gas after one-level cooling filtration, and two filter component (3) through intercrossing meshing's mode in order with filter component (3) with retrieve the collection of accumulational granule clearance on the dust removal pipeline (1), two filter component (3) mutually independent when juxtaposing with retrieve the granule of piling up on the dust removal pipeline (1) and clear up.
2. The converter flue gas full-dry type dust collection waste heat recovery device according to claim 1, wherein the filter element (3) comprises a first filter layer tower (301) and a second filter layer tower (302) which are arranged in parallel and in parallel, the first filter layer tower (301) and the second filter layer tower (302) work independently, and the first filter layer tower (301) and the second filter layer tower (302) clean accumulated particles on the first filter layer tower (301) and the second filter layer tower (302) through mutual cross friction.
3. The converter flue gas full-dry dust collection waste heat recovery device according to claim 2, wherein the recovery dust removal pipeline (1) is divided into a first-stage cooling dust collection section (101) and a second-stage cooling dust collection section (102) from bottom to top in sequence, the diameter of the second-stage cooling dust collection section (102) is equal to the sum of the widths of the first filter layer tower (301) and the second filter layer tower (302) during mutually independent operation, the upper end face of the second-stage cooling dust collection section (102) is provided with an embedded circular plate (7), the embedded circular plate (7) is penetrated to be provided with a movable bearing (8) for the first filter layer tower (301) and the second filter layer tower (302), the lower end face of the second-stage cooling dust collection section (102) is provided with a sinking groove (9), a passive rotating circular ring (10) is movably arranged in the sinking groove (9), and the lower ends of the first filter layer tower (301) and the second filter layer tower (302) are arranged through the movable bearing (8) On passive rotation ring (10), first filtering layer tower (301) and second filtering layer tower (302) pass through respectively adjustable bearing (8) independently rotate, embedded plectane (7) are through driving passive rotation ring (10) are rotatory in order to with first filtering layer tower (301) with second filtering layer tower (302) synchronous revolution.
4. The converter flue gas full-dry type dust collection waste heat recovery device according to claim 3, wherein the first filter layer tower (301) comprises a first rotating crankshaft (3011) mounted on the movable bearing (8), a first thin sieve plate (3012) fixedly mounted on the first rotating crankshaft (3011), and a first thick sieve plate (3013) fixedly mounted on the first rotating crankshaft (3011), the first thin sieve plate (3012) and the first thick sieve plate (3013) are alternately mounted on the first rotating crankshaft (3011), and the mounting intervals of the first thin sieve plate (3012) and the first thick sieve plate (3013) are alternately arranged according to large intervals and small intervals.
5. The converter flue gas full dry type dust collection waste heat recovery device according to claim 4, wherein the second filter layer tower (302) comprises a second rotating crankshaft (3021) mounted on the movable bearing (8), a second thick screen plate (3022) fixedly mounted on the second rotating crankshaft (3021), and a second thin screen plate (3023) fixedly mounted on the second rotating crankshaft (3021), and the second thin screen plate (3023) and the second thick screen plate (3022) are alternately mounted on the second rotating crankshaft (3021), the mounting position of the second thin screen plate (3023) is opposite to the small distance between the first thin screen plate (3012) and the first thick screen plate (3013), and the mounting position of the second thick screen plate (3022) is opposite to the large distance between the first thin screen plate (3012) and the first thick screen plate (3013).
6. The converter flue gas full-dry type dust collection waste heat recovery device according to claim 5, characterized in that, the lower end of the secondary cooling dust collecting section (102) is provided with a semi-circular arc-shaped cutting hole (11), a sealing clamp (12) is sleeved outside the semi-circular arc-shaped cutting hole (11), and a collecting plate (13) for collecting cooled filter particles is inserted into the semi-circular arc-shaped cut hole (11), the upper ends of the first rotating crankshaft (3011) and the second rotating crankshaft (3021) are provided with fixing bolts (14) for fixing the upper end panel of the secondary temperature-reducing dust-collecting section (102), the secondary temperature-reducing dust-collecting section (102) is connected with the primary temperature-reducing dust-collecting section (101) through an air duct (103), the connection position of the secondary temperature reduction dust collection section (102) and the air duct (103) is positioned inside the passive rotating circular ring (10).
7. The converter flue gas full dry type dust collection waste heat recovery device according to claim 5, wherein the installation position of the first thick screen plate (3013) is opposite to the large distance between the second thin screen plate (3023) and the second thick screen plate (3022), the installation position of the first thin screen plate (3012) is opposite to the small distance between the second thin screen plate (3023) and the second thick screen plate (3022), the first thick screen plate (3013), the second thin screen plate (3023), the first thin screen plate (3012) and the second thick screen plate (3022) are arranged in a stacked manner, and the diameters of the first thick screen plate (3013), the second thin screen plate (3023), the first thin screen plate (3012) and the second thick screen plate (3022) are the same.
8. The converter flue gas full dry type dust collection waste heat recovery device according to claim 7, wherein the bending degree of the first rotating crankshaft (3011) and the second rotating crankshaft (3021) is the same, the bending degree of the first rotating crankshaft (3011) is the same as the 1/4 diameter of the first thick sieve plate (3013), and the maximum distance between the first rotating crankshaft (3011) and the second rotating crankshaft (3021) is the same as the diameter of the first thick sieve plate (3013).
9. The converter flue gas full-dry type dust collection waste heat recovery device according to claim 7, wherein the upper surfaces of the first thick sieve plate (3013), the second thin sieve plate (3023), the first thin sieve plate (3012) and the second thick sieve plate (3022) are all provided with friction protrusions (15) for removing accumulated particles, and the side curved surfaces of the first thick sieve plate (3013), the second thin sieve plate (3023), the first thin sieve plate (3012) and the second thick sieve plate (3022) are provided with friction protrusions (15) for removing accumulated particles on the inner wall of the secondary temperature reduction dust collection section (102).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112342336A (en) * | 2020-11-04 | 2021-02-09 | 中国科学院力学研究所 | Converter flue gas full-dry type dust collection waste heat recovery device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112342336A (en) * | 2020-11-04 | 2021-02-09 | 中国科学院力学研究所 | Converter flue gas full-dry type dust collection waste heat recovery device and method |
| CN112342336B (en) * | 2020-11-04 | 2023-09-08 | 中国科学院力学研究所 | Full-dry dust collection waste heat recovery device and method for converter flue gas |
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