CN117404926A - Heat cycle recycling device and method for totally-enclosed metallurgical furnace - Google Patents
Heat cycle recycling device and method for totally-enclosed metallurgical furnace Download PDFInfo
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- CN117404926A CN117404926A CN202311385969.0A CN202311385969A CN117404926A CN 117404926 A CN117404926 A CN 117404926A CN 202311385969 A CN202311385969 A CN 202311385969A CN 117404926 A CN117404926 A CN 117404926A
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- 238000004064 recycling Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 70
- 239000000779 smoke Substances 0.000 claims abstract description 38
- 239000000428 dust Substances 0.000 claims abstract description 37
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003546 flue gas Substances 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000007790 scraping Methods 0.000 claims description 32
- 238000007789 sealing Methods 0.000 claims description 30
- 239000002699 waste material Substances 0.000 claims description 27
- 238000010248 power generation Methods 0.000 claims description 18
- 210000001503 joint Anatomy 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 230000001808 coupling effect Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 230000008676 import Effects 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 5
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 210000002445 nipple Anatomy 0.000 description 8
- 239000002918 waste heat Substances 0.000 description 7
- 238000004891 communication Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- -1 this Chemical compound 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/04—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being formed by spirally-wound plates or laminae
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/04—Feeding and driving arrangements, e.g. power operation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G3/00—Rotary appliances
- F28G3/10—Rotary appliances having scrapers, hammers, or cutters, e.g. rigidly mounted
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to the technical field of metallurgy, in particular to a heat cycle recycling device of a totally-enclosed metallurgical furnace, which comprises a heat exchange component, an upper cleaning component, a lower cleaning component and a hydraulic auxiliary component, wherein the upper cleaning component is arranged in the heat exchange component and is used for cleaning smoke dust adhered to the surface of the heat exchange mechanism, the lower cleaning component is arranged below the heat exchange component and is used for cleaning smoke dust adhered to the inner wall below the heat exchange component, and the hydraulic auxiliary component is arranged at the top of the heat exchange component and is used for assisting the operation of the upper cleaning component. Through the design of spiral heat exchange plate, increase the area of contact between the cold and hot medium, improve heat exchange efficiency, remove along spiral annular gap through last clean subassembly and realize cleanness, ensure the smoothness degree that the flue gas got into through clean subassembly down, ensure totally closed metallurgical furnace thermal cycle recycling device job stabilization nature, compare in current tubulation formula heat exchange mechanism, clean operation is more convenient.
Description
Technical Field
The invention relates to the technical field of metallurgy, in particular to a heat cycle recycling device and method for a totally-enclosed metallurgical furnace.
Background
The high-temperature flue gas exhausted from various metallurgical furnaces often takes away 20-50% of the heat supply quantity of the furnaces, so that on one hand, great energy waste is caused, and on the other hand, the smelting efficiency is seriously influenced, and therefore, the metallurgical furnace heat cycle recycling device is widely applied.
Chinese patent publication No. CN214407011U discloses a flue gas waste heat recycling device, including air inlet channel and shell, air inlet channel is installed to the left end of shell, the right-hand member of shell is provided with the gas outlet, the top of shell is provided with water inlet and delivery port, and newly-increased baffle device is installed in whole flue gas waste heat recycling device's inside when not using, can not influence whole flue gas waste heat recycling device's transport and use like this, when needs use, namely have flue gas to pass through flue gas waste heat recycling device inside, so flue gas can be in flue gas waste heat recycling device's inside do the U type motion, circulating water in the circulating device will have abundant time to absorb the heat in the flue gas like this, circulating water's temperature will rise like this, waste heat in the flue gas will be by effectual absorption like this, not only improved the absorptivity, resource has been practiced thrift, ecological environment has been protected.
The technical scheme is similar to the structure of the shell and tube heat exchanger, although the contact heat exchange efficiency between cold and hot media is improved through the design, however, a large amount of smoke dust is mixed in high-temperature flue gas exhausted by a metallurgical furnace, even if the serial dust removing mechanism is used for a long time, the smoke dust can still be slowly adsorbed on the surface of the heat exchange structure, thereby increasing the interval between the cold and hot media, finally reducing the efficiency of waste heat recovery.
Disclosure of Invention
In order to solve the problems that in the prior art, the internal structure of a heat exchanger is staggered and mixed, the assembly and the operation of a cleaning mechanism are not facilitated, and the long-term use stability and convenience of the device are affected, the invention provides a heat cycle recycling device and a heat cycle recycling method of a totally-enclosed metallurgical furnace, and aims to solve the problems.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the heat cycle recycling device of the totally-enclosed metallurgical furnace comprises a heat exchange component, an upper cleaning component, a lower cleaning component and a hydraulic auxiliary component, wherein the upper cleaning component is arranged in the heat exchange component and used for cleaning smoke dust adhered to the surface of a heat exchange mechanism, the lower cleaning component is arranged below the heat exchange component and used for cleaning smoke dust adhered to the inner wall below the heat exchange component, and the hydraulic auxiliary component is arranged at the top of the heat exchange component and used for assisting the operation of the upper cleaning component;
the heat exchange assembly comprises a pair of outer sleeves and a heat exchange mechanism arranged in each outer sleeve, wherein conical bottoms are arranged at the bottoms of the outer sleeves, upper sealing plates are arranged at the tops of the outer sleeves, upper sealing covers are arranged at the tops of the upper sealing plates, the heat exchange mechanism comprises spiral heat exchange plates, the outer ends of the heat exchange plates are correspondingly arranged at the inner walls of the outer sleeves, connecting plates are arranged at the inner ends of the heat exchange plates, one ends of the connecting plates are positioned at the axial center line of the outer sleeves, first connecting pipes are respectively arranged at the inner ends of the heat exchange plates, inner cavities for water are respectively arranged in the heat exchange plates, through cavities are respectively arranged in the connecting plates, one ends of the through cavities are communicated with the inner cavities corresponding to the heat exchange plates, the other ends of the through cavities are communicated with the inner cavities corresponding to the first connecting pipes, the top ends of the first connecting pipes sequentially correspond to the centers of the upper sealing plates and the centers of the upper sealing covers, and spiral through grooves are respectively arranged in the inner parts of the upper sealing plates along the spiral trend of the heat exchange plates;
the upper cleaning assembly comprises a pair of first sliding rails arranged above and below the inner wall of the outer sleeve, a first rack arranged in the middle of the inner wall of the outer sleeve, a pair of second sliding rails arranged above and below the inner wall of the heat exchange plate facing the spiral center side of the upper cleaning assembly, and a second rack arranged in the middle of the inner wall, one end of the first sliding rail is connected with one end of the second sliding rail at the joint of the outer sleeve and the heat exchange plate and is in smooth transition, and one end of the first rack is connected with one end of the second rack at the joint of the outer sleeve and the heat exchange plate and is in smooth transition;
the upper cleaning assembly further comprises a moving base, one side of the moving base is correspondingly matched with the outer part of the first sliding rail up and down, a first hydraulic motor is installed at the middle top of the moving base, a driving end of the first hydraulic motor is connected with a first driving gear meshed with a first rack, a first scraping plate is arranged on one side of the moving base, a second scraping plate is arranged on the other side of the moving base, the outer edge of the first scraping plate is tightly matched with the inner wall of the outer sleeve, the inner edge of the second scraping plate is tightly matched with one side wall of the heat exchange plate far away from the spiral center of the heat exchange plate, sliding grooves are respectively formed in the upper side and the lower side of the other side of the moving base, sliding seats are respectively arranged in the sliding grooves in a sliding mode, guide rods are respectively installed in the upper side and the lower side of the sliding grooves, the outer parts of the guide rods are correspondingly and slidably connected to the inner parts of the sliding seats, springs are respectively sleeved between the sliding seats and the outer sides of the guide rods, and one side of the sliding seats is correspondingly installed in the upper side and the lower side of the second scraping plate;
the lower cleaning assembly comprises a first annular sliding rail arranged above the inner part of the cone bottom, a first sliding block is arranged outside the first annular sliding rail in a sliding manner, a third scraping plate is arranged on one side of the first sliding block, the bottom edge of the third scraping plate is tightly matched with the inner wall of the cone bottom, and a first magnetic stripe is arranged on the outer side of the first sliding block;
the lower cleaning assembly further comprises a second annular sliding rail arranged in the middle of the outer part of the cone bottom and a gear ring arranged above the outer part of the second annular sliding rail, a second sliding block is arranged outside the second annular sliding rail in a sliding mode, a second hydraulic motor is arranged in the middle of the second sliding block, a driving end of the second hydraulic motor is connected with a second driving gear meshed with the gear ring, a support is arranged on the outer side of the second sliding block, a second magnetic strip is arranged above the support, and mutual magnetic adsorption can be achieved between the second magnetic strip and the first magnetic strip;
the hydraulic auxiliary assembly comprises a first inner ring groove arranged on the inner wall of the top of the upper sealing cover and a second inner ring groove arranged on the inner wall of the top of the upper sealing cover and positioned in the inner ring of the first inner ring groove, a first outer ring groove is arranged below the outer part of the first inner ring groove, a second butt joint pipe is arranged on one side of the bottom of the first outer ring groove, a second outer ring groove is arranged below the outer part of the second inner ring groove, and a fourth butt joint pipe is arranged on one side of the bottom of the second outer ring groove;
the hydraulic auxiliary assembly further comprises a first butt joint pipe and a third butt joint pipe which are respectively arranged at two sides of the top of the upper sealing cover, the bottom port of the first butt joint pipe is communicated with the inside of the first inner annular groove, the bottom port of the third butt joint pipe is communicated with the inside of the second inner annular groove, the top ports of the first butt joint pipe and the third butt joint pipe are respectively communicated with a hydraulic station control valve port of the first hydraulic motor, and the second butt joint pipe and the fourth butt joint pipe are respectively communicated with an oil inlet and an oil outlet of the first hydraulic motor.
As a preferable scheme of the invention, the side surfaces of the upper sealing cover are all connected with discharge pipes, the bottom ports of the cone bottoms are all connected with input pipes, the bottom ports of the input pipes are all connected with first three-way pipes, and the bottom pipe orifices of the first three-way pipes are all connected with first valves for discharging ash.
As a preferable scheme of the invention, the heat exchange assembly further comprises a second three-way pipe, the pipe orifices at the two sides of the second three-way pipe are connected with second valves, and the outer side ports of the second valves are respectively connected with the side pipe orifices of the first three-way pipe through pipes.
As a preferable scheme of the invention, the bottoms of the outer ends of the heat exchange plates are respectively provided with a second connecting pipe, and the outer ports of the second connecting pipes respectively penetrate through the lower parts of the side walls of the outer sleeves correspondingly and respectively extend to the outside of the outer sleeves.
As a preferable scheme of the invention, the steam power generation device further comprises a steam power generation assembly, wherein the steam power generation assembly comprises a boiler, a circulating pump, a third three-way pipe, a steam turbine and a generator, a steam outlet of the boiler is connected with a steam inlet of the steam turbine, an output shaft of the steam turbine is connected with an input shaft of the generator, a waste steam outlet of the steam turbine is connected with an inlet of the circulating pump, an outlet of the circulating pump is connected with a pipe orifice on one side of the third three-way pipe, a pipe orifice on the other side of the third three-way pipe is connected with an inlet of the boiler, and the steam power generation assembly further comprises a condenser arranged between the circulating pump and the steam turbine, and the condenser is used for cooling waste steam discharged by the steam turbine into liquid water.
As a preferable scheme of the invention, the steam power generation assembly further comprises a first one-way valve, one side valve port of the first one-way valve is connected with the rest pipe orifice of the third three-way pipe, and the other side valve port of the first one-way valve is respectively connected with the second connecting pipe.
As a preferable mode of the invention, the allowable flow direction of the first one-way valve is the direction from the third three-way pipe to the second connecting pipe.
As a preferable scheme of the invention, the steam power generation assembly further comprises a second one-way valve, one side valve port of the second one-way valve is connected with an inlet of the boiler, and the other side valve port of the second one-way valve is respectively connected with the first connecting pipe.
As a preferred embodiment of the present invention, the allowable flow direction of the second check valve is a direction from the first connection pipe to the boiler.
The application method of the heat cycle recycling device of the totally-enclosed metallurgical furnace comprises the following steps:
pumping part of the cooled and liquefied waste steam into a heat exchange plate from a second connecting pipe through a third tee pipe and a first one-way valve;
step two, a second valve is opened, and high-heat flue gas exhausted by the totally-enclosed metallurgical furnace enters the inside of the outer sleeve through a second three-way pipe;
transferring heat to the waste steam after cooling and liquefying in the heat exchange plate according to thermodynamic high-heat flue gas in the outer sleeve, enabling the waste steam to enter the boiler through a first connecting pipe after absorbing heat and raising temperature, enabling the boiler to heat the waste steam and the other part of the waste steam after cooling and liquefying which is directly conveyed from a third three-way pipe, and then changing the waste steam into high-temperature high-pressure steam, driving a steam turbine to rotate, driving a generator to work and generate electricity, enabling the waste steam discharged from the steam turbine to be cooled and liquefied again under the action of a condenser, and enabling the waste steam to enter the heat exchange assembly and the boiler again, so that the purpose of recycling and reutilizing of heat circulation is achieved;
controlling the second valve at the side to be closed when the heat exchange efficiency is reduced due to the fact that the inner wall of the outer sleeve and the surface of the heat exchange plate absorb a large amount of smoke dust in the smoke dust, and driving the first hydraulic motor and the second hydraulic motor to work through the hydraulic station, wherein the first valve drives the movable base to move in the spiral gap between the inner wall of the outer sleeve and the heat exchange plate, the first scraper and the second scraper further conduct smoke dust scraping cleaning on the inner wall of the outer sleeve and the surface of the heat exchange plate, the second valve drives the second magnetic strip to rotate around the outer part of the cone bottom, the third scraper in the inner part of the outer sleeve is driven to rotate through magnetic coupling, and the smoke dust scraping cleaning on the inner wall surface of the cone bottom is conducted through the third scraper, so that smoke dust is prevented from obstructing the subsequent smoke dust;
step five, opening the first valve at the side so as to discharge the scraped smoke dust cleanly;
and step six, closing the first valve at the side, and then opening the second valve at the side, so that the heat cycle recycling operation can be performed again.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the design of the spiral heat exchange plate in the heat exchange assembly, on one hand, the contact area between cold and hot media can be enlarged and maintained, so that the heat exchange efficiency is improved, and on the other hand, compared with the existing tube array device, the internal space structure of the tube array device is more regular, the assembly and the work of a cleaning mechanism are facilitated, and the condition that the surface of a pipeline is inconvenient to clean in the prior art is avoided.
2. According to the invention, the upper cleaning component moves along the spiral annular gap between the outer sleeve and the heat exchange plate, so that the cleaning effect on the interior of the heat exchange component can be realized through the scraping action of the first scraping plate and the second scraping plate which can be freely stretched, the phenomenon that smoke dust contained in smoke is adsorbed on the inner wall of the outer sleeve and the surface of the heat exchange plate after long-time use is avoided, the effective contact between cold and hot media is influenced, the efficient heat exchange is ensured, and compared with the existing tubular heat exchange mechanism, the cleaning operation is more convenient.
3. According to the invention, the second magnetic stripe which rotates around the outside of the cone bottom in the lower cleaning assembly can drive the first magnetic stripe in the cone bottom to rotate by utilizing the magnetic coupling effect, so that the third scraping plate is driven to rotate, smoke dust collected by the inner wall of the cone bottom and the smoke dust falling down after the upper cleaning assembly works are scraped, the smoothness of the smoke gas entering is ensured, and the working stability of the heat cycle recycling device of the totally-enclosed metallurgical furnace is ensured.
4. In the invention, in order to ensure the stable operation of the upper cleaning component and the lower cleaning component in a high-temperature environment, a hydraulic motor is selected as a driving source, and the upper cleaning component needs to rotate to operate so as to avoid entanglement of a hydraulic pipeline, so that a matched hydraulic auxiliary component is designed, and the hydraulic auxiliary component can serve as a transfer place for hydraulic oil to flow through cooperation among a first inner annular groove, a first outer annular groove, a second inner annular groove and a second outer annular groove in the hydraulic auxiliary component, so that entanglement of the hydraulic pipeline is avoided, the use safety of the pipeline is ensured, and simultaneously, a spiral through groove which is matched with the upper sealing plate is used for exhausting flue gas after heat exchange is realized, and the matched hydraulic auxiliary component is used for inserting the hydraulic pipeline.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is another schematic view of the structure of FIG. 1;
FIG. 3 is a simplified schematic diagram of the structure of the present invention;
FIG. 4 is an exploded view of a portion of the heat exchange assembly of the present invention;
FIG. 5 is a schematic view of the assembly of the outer sleeve and the upper seal plate of the present invention;
FIG. 6 is a schematic view of the inner structure of the outer sleeve of the present invention;
FIG. 7 is another schematic view of the structure of FIG. 6;
FIG. 8 is a schematic cross-sectional view taken at X-X in FIG. 7;
FIG. 9 is a schematic view of the upper cleaning assembly of the present invention;
FIG. 10 is a schematic diagram illustrating assembly of a first rail, a first rack, a second rail, and a second rack according to an embodiment of the present invention;
FIG. 11 is a schematic view of a portion of the structure of FIG. 9;
FIG. 12 is another schematic view of the structure of FIG. 11;
FIG. 13 is an enlarged view of FIG. 12 at A;
FIG. 14 is an exploded view of a portion of the structure of FIG. 12;
fig. 15 is an enlarged view at B in fig. 14;
FIG. 16 is a schematic view of the lower cleaning assembly of the present invention;
FIG. 17 is another schematic view of the structure of FIG. 16;
FIG. 18 is a schematic view of a hydraulic assist assembly of the present invention;
FIG. 19 is an exploded view of a portion of the structure of FIG. 18;
fig. 20 is another schematic view of the structure of fig. 19.
Wherein, 1, a heat exchange component; 101. an outer sleeve; 102. a heat exchange plate; 103. a connecting plate; 104. a first connection pipe; 105. an upper sealing plate; 106. an upper sealing cover; 107. a discharge pipe; 108. a cone bottom; 109. an input tube; 110. a first tee; 111. a first valve; 112. a second tee; 113. a second valve; 114. a second connection pipe; 2. an upper cleaning assembly; 201. a first slide rail; 202. a first rack; 203. a second slide rail; 204. a second rack; 205. a moving base; 206. a first hydraulic motor; 207. a first drive gear; 208. a first scraper; 209. a second scraper; 210. a sliding seat; 211. a guide rod; 212. a spring; 3. a lower cleaning assembly; 301. the first annular slide rail; 302. a first slider; 303. a first magnetic stripe; 304. a third squeegee; 305. the second annular slide rail; 306. a second slider; 307. a second hydraulic motor; 308. a second drive gear; 309. a gear ring; 310. a bracket; 311. a second magnetic stripe; 4. a hydraulic assist assembly; 401. a first inner ring groove; 402. a first butt joint pipe; 403. a first outer ring groove; 404. a second butt joint pipe; 405. a second inner ring groove; 406. a third butt joint pipe; 407. a second outer ring groove; 408. a fourth butt joint pipe; 5. a steam power generation assembly; 501. a boiler; 502. a circulation pump; 503. a third tee; 504. a first one-way valve; 505. a second one-way valve; 506. a steam turbine; 507. a generator; 508. and a condenser.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
As shown in fig. 1 to 20, the embodiment of the invention provides a heat cycle recycling device of a totally-enclosed metallurgical furnace, which comprises a heat exchange component 1, an upper cleaning component 2, a lower cleaning component 3 and a hydraulic auxiliary component 4, wherein the upper cleaning component 2 is arranged in the heat exchange component 1 and is used for cleaning smoke dust adhered to the surface of the heat exchange mechanism, the lower cleaning component 3 is arranged below the heat exchange component 1 and is used for cleaning smoke dust adhered to the inner wall below the heat exchange component 1, and the hydraulic auxiliary component 4 is arranged at the top of the heat exchange component 1 and is used for assisting the operation of the upper cleaning component 2.
In this embodiment, referring to fig. 4 to 7, the heat exchange assembly 1 includes a pair of outer sleeves 101, and a heat exchange mechanism disposed inside each outer sleeve 101, conical bottoms 108 are disposed at bottoms of the outer sleeves 101, upper sealing plates 105 are disposed at tops of the outer sleeves 101, upper sealing covers 106 are disposed at tops of the upper sealing plates 105, the heat exchange mechanism includes spiral heat exchange plates 102, outer ends of the heat exchange plates 102 are correspondingly disposed at inner walls of the outer sleeves 101, connecting plates 103 are disposed at inner ends of the heat exchange plates 102, first connecting pipes 104 are disposed at axial center lines of the outer sleeves 101 at one ends of the connecting plates 103, inner cavities of the heat exchange plates 102 are disposed at inner ends of the outer sleeves 101, through cavities are disposed at inner ends of the connecting plates 103, one ends of the through cavities are communicated with inner cavities of the corresponding heat exchange plates 102, the other ends of the through cavities are communicated with inner portions of the corresponding first connecting pipes 104, top ends of the first connecting pipes 104 sequentially correspond to centers of the upper sealing plates 105 and centers of the upper sealing covers 106, and spiral through grooves are disposed inside the upper sealing plates 105 along spiral trend of the heat exchange plates 102.
In this embodiment, through the design of the spiral heat exchange plate 102 in the heat exchange assembly 1, on one hand, the contact area between the cold and hot media can be enlarged and maintained, so as to improve the heat exchange efficiency, and on the other hand, compared with the existing tube array device, the internal space structure is more regular, the assembly and the work of the cleaning mechanism are convenient, and the condition that the surface of the pipeline is inconvenient to clean is avoided.
In this embodiment, referring to fig. 9 to 10, the upper cleaning assembly 2 includes a pair of first slide rails 201 installed above and below the inner wall of the outer sleeve 101, and a first rack 202 installed in the middle of the inner wall of the outer sleeve 101, and the upper cleaning assembly 2 further includes a pair of second slide rails 203 installed above and below the inner wall of the heat exchange plate 102 facing the spiral center side thereof, and a second rack 204 installed in the middle of the inner wall, one end of the first slide rail 201 and one end of the second slide rail 203 are connected and smoothly transition at the junction of the outer sleeve 101 and the heat exchange plate 102, and one end of the first rack 202 and one end of the second rack 204 are connected and smoothly transition at the junction of the outer sleeve 101 and the heat exchange plate 102.
The smooth over-design described above facilitates the smooth movement of the upper cleaning assembly 2 between the outer sleeve 101 and the heat exchanger plate 102.
In this embodiment, referring to fig. 11-15, upper cleaning assembly 2 further includes a moving base 205, one side of moving base 205 is correspondingly adapted to the outside of first sliding rail 201 from top to bottom, a first hydraulic motor 206 is installed at the top of middle of moving base 205, a first driving gear 207 meshed with first rack 202 is connected to the driving end of first hydraulic motor 206, one side of moving base 205 is provided with a first scraping plate 208, the other side of moving base 205 is provided with a second scraping plate 209, wherein the outer edge of first scraping plate 208 is closely matched to the inner wall of outer sleeve 101, referring to fig. 13, the first scraping plate 208 is provided with a groove adapted to first sliding rail 201, first rack 202, second sliding rail 203 and second rack 204, the inner edge of second scraping plate 209 is closely matched to a side wall of heat exchange plate 102 far away from the spiral center, sliding grooves are all arranged at the upper and lower sides of the other side of moving base 205, sliding seats 210 are all slidably arranged at the inner sides of sliding grooves, guide rods 211 are all installed at the upper and lower sides of sliding grooves, the outer sides of guide rods 211 are correspondingly slidably connected to the inner sides of sliding seats 210, the guide rods 211 are located between the outer sliding seats 210 and the sliding seats 101 are respectively located at the outer sides of sliding seats, and the sliding seats are respectively, and the sliding plates are arranged between the sliding seats 101 and the sliding seats can be made to be closely matched to the corresponding to the surfaces of the second sliding plates 209, and can be made to be closely matched to the sliding plates to the corresponding to the surfaces of the base 101, and can be made to be clean.
In this embodiment, through going up the spiral annular gap removal between cleaning element 2 and the heat exchanger plate 102 along outer sleeve 101 to can realize the inside clean effect to heat exchanger element 1 through the striking off effect of first scraper blade 208 and the second scraper blade 209 that can freely stretch out and draw back, avoided long-time back, the smoke and dust that contains in the flue gas adsorbs at the inner wall of outer sleeve 101 and the surface of heat exchanger plate 102, thereby influences the effective contact between the cold and hot medium, guaranteed the high-efficient of heat exchange and gone on, compare in current tubular heat exchanger mechanism, cleaning operation is more convenient.
In this embodiment, referring to fig. 16-17, the lower cleaning assembly 3 includes a first annular slide rail 301 mounted above the inside of the cone bottom 108, a first slider 302 is slidably disposed on the outside of the first annular slide rail 301, a third scraper 304 is mounted on one side of the first slider 302, and the bottom edge of the third scraper 304 is tightly fitted to the inner wall of the cone bottom 108, so as to clean smoke dust collected on the cone bottom 108, ensure smooth entry of subsequent smoke, and a first magnetic stripe 303 is mounted on the outside of the first slider 302.
In this embodiment, referring again to fig. 16-17, the lower cleaning assembly 3 further includes a second annular slide rail 305 installed in the middle of the exterior of the cone bottom 108, and a gear ring 309 installed above the exterior of the second annular slide rail 305, a second slider 306 is slidably provided at the exterior of the second annular slide rail 305, a second hydraulic motor 307 is installed at the middle of the second slider 306, a second driving gear 308 engaged with the gear ring 309 is connected to the driving end of the second hydraulic motor 307, a bracket 310 is installed at the outer side of the second slider 306, a second magnetic stripe 311 is installed above the bracket 310, and the second magnetic stripe 311 and the first magnetic stripe 303 can be magnetically attracted to each other.
In this embodiment, through the second magnetic stripe 311 that surrounds the outside rotation of the cone bottom 108 in the lower cleaning assembly 3, the magnetic coupling effect is utilized to drive the first magnetic stripe 303 inside the cone bottom 108 to rotate, thereby drive the third scraper 304 to rotate, so as to scrape the dust collected by the inner wall of the cone bottom 108 and the dust falling down after the upper cleaning assembly 2 works, ensure the smoothness of the entry of the dust, and ensure the working stability of the heat cycle recycling device of the totally-enclosed metallurgical furnace.
In this embodiment, referring to fig. 18 to 20, the hydraulic assist assembly 4 includes a first inner ring groove 401 installed on the top inner wall of the upper seal cap 106, and a second inner ring groove 405 installed on the top inner wall thereof and located in the inner ring of the first inner ring groove 401, a first outer ring groove 403 is provided under the outside of the first inner ring groove 401, a second docking tube 404 is installed at the bottom side of the first outer ring groove 403, a second outer ring groove 407 is provided under the outside of the second inner ring groove 405, and a fourth docking tube 408 is installed at the bottom side of the second outer ring groove 407.
In this embodiment, referring again to fig. 18-20, the hydraulic assist assembly 4 further includes a first nipple 402 and a third nipple 406 mounted on both sides of the top of the upper seal cap 106, respectively, the bottom port of the first nipple 402 being in communication with the interior of the first inner ring groove 401, the bottom port of the third nipple 406 being in communication with the interior of the second inner ring groove 405, wherein the top ports of the first nipple 402 and the third nipple 406 are in communication with the hydraulic station control valve ports that drive the first hydraulic motor 206, respectively, and the second nipple 404 and the fourth nipple 408 are in communication with the inlet and outlet ports of the first hydraulic motor 206, respectively.
In this embodiment, in order to ensure the stable operation of the upper cleaning assembly 2 and the lower cleaning assembly 3 in a high temperature environment, a hydraulic motor is selected as a driving source, and because the upper cleaning assembly 2 needs to rotate to operate, in order to avoid entanglement of the hydraulic pipes, a matched hydraulic auxiliary assembly 4 is designed, and the hydraulic auxiliary assembly 4 can serve as a transfer place for hydraulic oil to flow through cooperation between the first inner ring groove 401, the first outer ring groove 403, the second inner ring groove 405 and the second outer ring groove 407 in the hydraulic auxiliary assembly 4, so that entanglement of the hydraulic pipes is avoided, the use safety of the pipes is ensured, and meanwhile, a spiral through groove which is matched with the upper sealing plate 105 is used for discharging flue gas after heat exchange is adopted, and on the other hand, the hydraulic auxiliary assembly 4 serves as a penetration of the hydraulic pipes.
In this embodiment, referring again to fig. 1-2, the side surfaces of the upper sealing cover 106 are all connected with the discharge pipes 107, the bottom ports of the cone bottoms 108 are all connected with the input pipes 109, the bottom ports of the input pipes 109 are all connected with the first tee pipes 110, and the bottom pipe orifices of the first tee pipes 110 are all connected with the first valves 111 for discharging ash.
Further, the heat exchange assembly 1 further comprises a second tee 112, the nozzles at two sides of the second tee 112 are connected with a second valve 113, and the outer side ports of the second valve 113 are respectively connected to the side ports of the first tee 110 through a conduit.
Further, the bottom of the outer end of the heat exchange plate 102 is provided with second connection pipes 114, and the outer ports of the second connection pipes 114 respectively penetrate through the lower side walls of the outer sleeve 101 and respectively extend to the outside.
In this embodiment, referring again to fig. 3, the steam power generation assembly 5 further includes a boiler 501, a circulation pump 502, a third tee 503, a turbine 506, and a generator 507, a steam outlet of the boiler 501 is connected to a steam inlet of the turbine 506, an output shaft of the turbine 506 is connected to an input shaft of the generator 507, a waste steam outlet of the turbine 506 is connected to an inlet of the circulation pump 502, an outlet of the circulation pump 502 is connected to a pipe orifice on one side of the third tee 503, a pipe orifice on the other side of the third tee 503 is connected to an inlet of the boiler 501, and the steam power generation assembly 5 further includes a condenser 508 disposed between the circulation pump 502 and the turbine 506, the condenser 508 serving to cool waste steam discharged from the turbine 506 into liquid water.
Further, the steam power generation assembly 5 further includes a first check valve 504, one side valve port of the first check valve 504 is connected to the remaining pipe orifice of the third tee 503, and the other side valve port of the first check valve 504 is connected to the second connection pipe 114, respectively.
Further, the allowable flow direction of the first check valve 504 is a direction from the third tee 503 to the second connection pipe 114.
Further, the steam power generation assembly 5 further includes a second check valve 505, one side valve port of the second check valve 505 is connected to the inlet of the boiler 501, and the other side valve port of the second check valve 505 is connected to the first connection pipe 104, respectively.
Further, the allowable flow direction of the second check valve 505 is a direction directed from the first connection pipe 104 to the boiler 501.
In the present embodiment, the hydraulic station and the steam power generation assembly 5 are both of the prior art, and the technical principles thereof are well known and clear to those skilled in the art, so that the description thereof will not be repeated, wherein, referring to fig. 3, the steam power generation assembly 5 is only shown in the simplified diagram in the present embodiment.
Based on the structure of the heat cycle recycling device of the totally-enclosed metallurgical furnace, further, the scheme of the embodiment also provides a use method of the heat cycle recycling device of the totally-enclosed metallurgical furnace, and the scheme comprises the following steps when in operation:
step one, the partially cooled and liquefied waste steam is pumped into the heat exchange plate 102 from the second connecting pipe 114 through the third tee 503 and the first check valve 504.
And step two, the second valve 113 is opened, and the high-heat flue gas discharged from the totally-enclosed metallurgical furnace enters the inside of the outer sleeve 101 through the second tee 112.
Step three, in the outer sleeve 101, heat is transferred to the waste steam after cooling and liquefying in the heat exchange plate 102 according to thermodynamic high-heat flue gas, and then the waste steam enters the boiler 501 through the first connecting pipe 104 after absorbing heat and raising temperature, then the boiler 501 heats the waste steam and the other part of the cooled and liquefied waste steam directly conveyed from the third three-way pipe 503 together and then turns into high-temperature and high-pressure steam, thereby driving the turbine 506 to rotate, driving the generator 507 to work and generate electricity, and then the waste steam discharged from the turbine 506 is cooled and liquefied again under the action of the condenser 508 and enters the heat exchange assembly 1 and the boiler 501 again, so that the purpose of recycling and reutilizing heat circulation is realized.
And fourthly, when the inner wall of the outer sleeve 101 and the surface of the heat exchange plate 102 absorb a large amount of smoke dust in the smoke gas to reduce the heat exchange efficiency, the second valve 113 at the side is controlled to be closed, and the first hydraulic motor 206 and the second hydraulic motor 307 are driven to work through the hydraulic station, wherein the first valve drives the movable base 205 to move in the spiral gap between the inner wall of the outer sleeve 101 and the heat exchange plate 102, the first scraper 208 and the second scraper 209 further conduct smoke dust scraping cleaning on the inner wall of the outer sleeve 101 and the surface of the heat exchange plate 102, the second magnetic stripe 311 is driven to rotate around the outer part of the cone bottom 108, the third scraper 304 in the inner part of the inner sleeve is driven to rotate through the magnetic coupling effect, and the smoke dust scraping cleaning effect is conducted on the inner wall surface of the cone bottom 108 through the third scraper 304, so that the smoke dust is prevented from blocking the subsequent smoke gas.
And fifthly, opening the first valve 111 at the side, so as to discharge the scraped smoke dust cleanly.
And step six, closing the first valve 111 at the side, and then opening the second valve 113 at the side, so that the operation of recycling the heat cycle can be performed again.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a totally closed metallurgical stove thermal cycle recycling device, includes heat exchange component (1), goes up clean subassembly (2), clean subassembly (3) and hydraulic pressure auxiliary assembly (4) down, its characterized in that: the upper cleaning component (2) is arranged in the heat exchange component (1) and used for cleaning smoke dust adhered to the surface of the heat exchange mechanism, the lower cleaning component (3) is arranged below the heat exchange component (1) and used for cleaning smoke dust adhered to the inner wall below the heat exchange component (1), and the hydraulic auxiliary component (4) is arranged at the top of the heat exchange component (1) and used for assisting the operation of the upper cleaning component (2);
the heat exchange assembly (1) comprises a pair of outer sleeves (101) and a heat exchange mechanism arranged in each outer sleeve (101), wherein conical bottoms (108) are arranged at the bottoms of the outer sleeves (101), upper sealing plates (105) are arranged at the tops of the outer sleeves (101), upper sealing covers (106) are arranged at the tops of the upper sealing plates (105), the heat exchange mechanism comprises spiral heat exchange plates (102), the outer ends of the heat exchange plates (102) are correspondingly arranged at the inner wall of the outer sleeves (101), connecting plates (103) are arranged at the inner ends of the heat exchange plates (102), first connecting pipes (104) are arranged at the positions, located at the axial center lines of the outer sleeves (101), of one ends of the connecting plates (103) are respectively provided with an inner cavity for water to pass through, one end of each through cavity is communicated with the inner cavity of the corresponding heat exchange plate (102), the other end of each through cavity is correspondingly communicated with the inner cavity of the corresponding first connecting pipe (104), and the corresponding spiral sealing plate (105) is sequentially provided with the center of the corresponding sealing plate (105) and the inner cavity of the corresponding sealing plate (102);
the upper cleaning assembly (2) comprises a pair of first sliding rails (201) arranged above and below the inner wall of the outer sleeve (101), a first rack (202) arranged in the middle of the inner wall of the outer sleeve (101), a pair of second sliding rails (203) arranged above and below the inner wall of the heat exchange plate (102) facing the spiral center side of the upper cleaning assembly, and a second rack (204) arranged in the middle of the inner wall, wherein one end of the first sliding rail (201) and one end of the second sliding rail (203) are connected and smoothly transition at the joint of the outer sleeve (101) and the heat exchange plate (102), and one end of the first rack (202) and one end of the second rack (204) are connected and smoothly transition at the joint of the outer sleeve (101) and the heat exchange plate (102);
the upper cleaning assembly (2) further comprises a moving base (205), one side of the moving base (205) is correspondingly matched with the outer part of the first sliding rail (201) up and down, a first hydraulic motor (206) is arranged at the middle top of the moving base (205), a first driving gear (207) meshed with the first rack (202) is connected with the driving end of the first hydraulic motor (206), a first scraping plate (208) is arranged on one side of the moving base (205), a second scraping plate (209) is arranged on the other side of the moving base (205), wherein the outer edge of the first scraping plate (208) is tightly matched with the inner wall of the outer sleeve (101), the inner edge of the second scraping plate (209) is tightly matched with one side wall of the heat exchange plate (102) far away from the spiral center of the heat exchange plate, sliding grooves are respectively arranged on the upper and lower sides of the other sides of the moving base (205), sliding seats (210) are respectively arranged in the sliding grooves, guide rods (211) are respectively arranged on the upper and lower sides of the sliding grooves, the outer sides of the sliding grooves are correspondingly connected with the sliding seats (210), and the guide rods (211) are correspondingly sliding seats (212) on the inner sides of the sliding seats (210), and the sliding seats (212) respectively;
the lower cleaning assembly (3) comprises a first annular sliding rail (301) arranged above the inner part of the cone bottom (108), a first sliding block (302) is arranged outside the first annular sliding rail (301) in a sliding manner, a third scraping plate (304) is arranged on one side of the first sliding block (302), the bottom edge of the third scraping plate (304) is tightly matched with the inner wall of the cone bottom (108), and a first magnetic stripe (303) is arranged on the outer side of the first sliding block (302);
the lower cleaning assembly (3) further comprises a second annular sliding rail (305) arranged in the middle of the outer part of the conical bottom (108) and a gear ring (309) arranged above the outer part of the second annular sliding rail (305), a second sliding block (306) is arranged outside the second annular sliding rail (305) in a sliding mode, a second hydraulic motor (307) is arranged in the middle of the second sliding block (306), a second driving gear (308) meshed with the gear ring (309) is connected with the driving end of the second hydraulic motor (307), a bracket (310) is arranged on the outer side of the second sliding block (306), a second magnetic strip (311) is arranged above the bracket (310), and mutual magnetic adsorption between the second magnetic strip (311) and the first magnetic strip (303) can be achieved;
the hydraulic auxiliary assembly (4) comprises a first inner annular groove (401) arranged on the top inner wall of the upper sealing cover (106) and a second inner annular groove (405) arranged on the top inner wall of the upper sealing cover and positioned in the inner ring of the first inner annular groove (401), a first outer annular groove (403) is arranged below the outer part of the first inner annular groove (401), a second butt joint pipe (404) is arranged on one side of the bottom of the first outer annular groove (403), a second outer annular groove (407) is arranged below the outer part of the second inner annular groove (405), and a fourth butt joint pipe (408) is arranged on one side of the bottom of the second outer annular groove (407);
the hydraulic auxiliary assembly (4) further comprises a first connecting pipe (402) and a third connecting pipe (406) which are respectively arranged at two sides of the top of the upper sealing cover (106), a bottom port of the first connecting pipe (402) is communicated with the inside of the first inner annular groove (401), a bottom port of the third connecting pipe (406) is communicated with the inside of the second inner annular groove (405), wherein top ports of the first connecting pipe (402) and the third connecting pipe (406) are respectively communicated with a hydraulic station control valve port of the first hydraulic motor (206) in a driving mode, and a second connecting pipe (404) and a fourth connecting pipe (408) are respectively communicated with an oil inlet and an oil outlet of the first hydraulic motor (206).
2. The totally enclosed metallurgical furnace heat cycle recycling device according to claim 1, wherein: the side of last sealed lid (106) all is connected with discharge pipe (107), the end port of awl end (108) all is connected with input tube (109), the bottom end port of input tube (109) all is connected with first three-way pipe (110), the bottom mouth of pipe of first three-way pipe (110) all is connected with first valve (111) that are used for the ash discharge.
3. The totally enclosed metallurgical furnace heat cycle recycling device according to claim 1, wherein: the heat exchange assembly (1) further comprises a second three-way pipe (112), two side pipe orifices of the second three-way pipe (112) are connected with second valves (113), and outer side ports of the second valves (113) are respectively connected to side pipe orifices of the first three-way pipe (110) through guide pipes.
4. The totally enclosed metallurgical furnace heat cycle recycling device according to claim 1, wherein: the bottom of the outer end of the heat exchange plate (102) is provided with second connecting pipes (114), and the outer ports of the second connecting pipes (114) respectively penetrate through the lower parts of the side walls of the outer sleeve (101) correspondingly and respectively extend to the outside of the outer sleeve.
5. The totally enclosed metallurgical furnace heat cycle recycling device according to claim 1, wherein: still include steam power generation subassembly (5), steam power generation subassembly (5) include boiler (501), circulating pump (502), third three-way pipe (503), steam turbine (506), generator (507), the steam inlet of steam outlet connection steam turbine (506) of boiler (501), the input shaft of output shaft connection generator (507) of steam turbine (506), the import of circulating pump (502) is connected to the exhaust steam outlet of steam turbine (506), the one side mouth of pipe of circulating pump (502) is connected to the outlet connection third three-way pipe (503), the entry of boiler (501) is connected to the opposite side mouth of pipe of third three-way pipe (503), steam power generation subassembly (5) still including locating condenser (508) between circulating pump (502) and steam turbine (506), condenser (508) are used for cooling into liquid water with turbine (506) exhaust steam.
6. The heat cycle recycling device of the totally-enclosed metallurgical furnace according to claim 5, wherein the heat cycle recycling device is characterized in that: the steam power generation assembly (5) further comprises a first one-way valve (504), one side valve port of the first one-way valve (504) is connected with the rest pipe orifice of the third three-way pipe (503), and the other side valve port of the first one-way valve (504) is respectively connected with the second connecting pipe (114).
7. The totally enclosed metallurgical furnace heat cycle recycling device of claim 6, wherein: the allowable flow direction of the first one-way valve (504) is the direction from the third tee pipe (503) to the second connecting pipe (114).
8. The heat cycle recycling device of the totally-enclosed metallurgical furnace according to claim 5, wherein the heat cycle recycling device is characterized in that: the steam power generation assembly (5) further comprises a second one-way valve (505), one side valve port of the second one-way valve (505) is connected with an inlet of the boiler (501), and the other side valve port of the second one-way valve (505) is connected with the first connecting pipe (104) respectively.
9. The totally enclosed metallurgical furnace heat cycle recycling device of claim 8, wherein: the allowable flow direction of the second one-way valve (505) is the direction from the first connecting pipe (104) to the boiler (501).
10. The application method of the heat cycle recycling device of the totally-enclosed metallurgical furnace is characterized by comprising the following steps of: the method comprises the following steps:
step one, pumping part of the cooled and liquefied waste steam into a heat exchange plate (102) from a second connecting pipe (114) through a third tee pipe (503) and a first one-way valve (504);
step two, a second valve (113) is opened, and high-heat flue gas exhausted by the totally-enclosed metallurgical furnace enters the inside of the outer sleeve (101) through a second three-way pipe (112);
step three, transferring heat to waste steam after cooling and liquefying in the heat exchange plate (102) according to thermodynamic high-heat flue gas in the outer sleeve (101), enabling the waste steam to enter a boiler (501) through a first connecting pipe (104) after absorbing heat and heating, enabling the boiler (501) to heat the waste steam and the other part of the cooled and liquefied waste steam directly conveyed from a third three-way pipe (503) and then changing the waste steam into high-temperature and high-pressure steam, driving a turbine (506) to rotate, driving a generator (507) to work and generate electricity, enabling the waste steam discharged from the turbine (506) to be cooled and liquefied again under the action of a condenser (508), and enabling the waste steam to enter a heat exchange assembly (1) and the boiler (501) again, and achieving the purposes of recycling and reutilization of heat circulation;
controlling the second valve (113) at the side to be closed when the heat exchange efficiency is reduced due to the fact that a large amount of smoke dust in the inner wall of the outer sleeve (101) and the surface of the heat exchange plate (102) are adsorbed in the outer sleeve (101) at any side, and driving the first hydraulic motor (206) and the second hydraulic motor (307) to work through a hydraulic station, wherein the first valve drives the movable base (205) to move in a spiral gap between the inner wall of the outer sleeve (101) and the heat exchange plate (102), smoke dust scraping and cleaning effects are carried out on the inner wall of the outer sleeve (101) and the surface of the heat exchange plate (102) through the first scraping plate (208) and the second scraping plate (209), the second magnetic stripe (311) is driven to rotate around the outer part of the cone bottom (108), and then driving the third scraping plate (304) in the inner part to rotate through the magnetic coupling effect, and the smoke dust scraping and cleaning effects are carried out on the inner wall surface of the cone bottom (108) through the third scraping plate (304), so that smoke dust is prevented from blocking subsequent smoke dust entering;
step five, opening the first valve (111) at the side so as to discharge the scraped smoke dust cleanly;
and step six, closing the first valve (111) at the side, and then opening the second valve (113) at the side, so that the heat cycle recycling operation can be performed again.
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| CN202311385969.0A CN117404926B (en) | 2023-10-24 | 2023-10-24 | Heat cycle recycling device and method for totally-enclosed metallurgical furnace |
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| CN202311385969.0A CN117404926B (en) | 2023-10-24 | 2023-10-24 | Heat cycle recycling device and method for totally-enclosed metallurgical furnace |
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| CN218915959U (en) * | 2022-12-01 | 2023-04-25 | 鹰潭市钲旺科技有限公司 | Energy-saving nonferrous metal waste smelting furnace |
| WO2023173902A1 (en) * | 2022-03-14 | 2023-09-21 | 苏州海陆重工股份有限公司 | Waste-heat recovery system matching hismelt smelting reduction ironmaking system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101893385A (en) * | 2010-06-09 | 2010-11-24 | 河南昇扬硅业科技发展有限公司 | Device for power generation from waste heat of metallic silicon smelting electric furnace and process flow thereof |
| CN201688717U (en) * | 2010-06-09 | 2010-12-29 | 河南昇扬硅业科技发展有限公司 | Afterheat generating device of metallic silicon electric melting furnace |
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| CN215002983U (en) * | 2021-07-14 | 2021-12-03 | 成信集成科技股份有限公司 | Ou ye furnace roof coal gas cooling waste heat recovery device |
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