CN114353557A - Coke oven raw gas waste heat recovery device - Google Patents
Coke oven raw gas waste heat recovery device Download PDFInfo
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- CN114353557A CN114353557A CN202210021515.4A CN202210021515A CN114353557A CN 114353557 A CN114353557 A CN 114353557A CN 202210021515 A CN202210021515 A CN 202210021515A CN 114353557 A CN114353557 A CN 114353557A
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- tube
- heat exchange
- coke oven
- waste heat
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- 239000007789 gas Substances 0.000 title claims abstract description 74
- 239000000571 coke Substances 0.000 title claims abstract description 51
- 239000002918 waste heat Substances 0.000 title claims abstract description 39
- 238000011084 recovery Methods 0.000 title claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 239000000428 dust Substances 0.000 claims abstract description 25
- 238000001914 filtration Methods 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000000630 rising effect Effects 0.000 claims description 6
- 210000002421 cell wall Anatomy 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 claims description 3
- 238000010408 sweeping Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000007790 scraping Methods 0.000 description 4
- 206010024796 Logorrhoea Diseases 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The invention discloses a device for recovering waste heat of raw coke oven gas, and relates to the technical field of waste heat recovery equipment. The coke oven crude gas waste heat recovery device comprises an air inlet pipe and an air pump fixedly connected to the upper portion of the air inlet pipe and communicated with the air inlet pipe, wherein a filtering mechanism used for filtering dust on crude gas is arranged at the left portion of the air inlet pipe, a conveying pipe is communicated with the right portion of the air inlet pipe, a plurality of heat exchange mechanism groups used for recovering the waste heat of the crude gas are equidistantly installed outside the conveying pipe, each heat exchange mechanism group comprises an outer heat exchange unit used for recovering the waste heat of the crude gas close to the wall portion of an inner cavity of the conveying pipe and an inner heat exchange unit used for recovering the waste heat of the crude gas close to the central portion of the inner cavity of the conveying pipe.
Description
Technical Field
The invention relates to the technical field of waste heat recovery equipment, in particular to a device for recovering waste heat of raw gas of a coke oven.
Background
The coke oven gas is also called coke oven gas, because the combustible components are more, the coke oven gas belongs to high-heat value gas, the combustible gas is generated when coke and tar products are produced by high-temperature carbonization of coking coal prepared by using several kinds of bituminous coal in the coke oven, the combustible gas belongs to a byproduct of the coking industry, the combustible gas is a mixture, and the crude gas is dust-containing gas.
Most of the existing waste heat recovery equipment adopts a mode that a water jacket is sleeved on an ascending pipe section of a gas transmission pipe to recover waste heat when recovering the waste heat of coke oven gas, but the mode can only contact the heat on the outer surface wall of the gas transmission pipe, and most of the heat in the coke oven gas is concentrated at the middle position of the gas transmission pipe, so that the waste heat recovery equipment can not fully contact the heat in the coke oven gas and exchange the heat, and the waste heat recovery efficiency is lower; in addition, because be mingled with the coal dust in the raw coke oven gas, need filter it and just can carry out waste heat recovery, but present current filtration mode is mostly only to utilize the filter to filter, makes the condition that takes place the filter and is blockked up after long-time use easily, influences subsequent normal waste heat recovery work.
Disclosure of Invention
The technical problem to be solved is as follows: the device for recovering the waste heat of the raw gas of the coke oven can solve the problems pointed out in the background technology.
The technical scheme is as follows: in order to achieve the above purpose, the invention adopts the following technical scheme that the device for recovering the waste heat of the raw coke oven gas comprises an air inlet pipe and an air pump fixedly connected to the upper part of the air inlet pipe and communicated with the air inlet pipe, wherein the left part of the air inlet pipe is provided with a filtering mechanism for filtering dust from the raw coke oven gas, the right part of the air inlet pipe is communicated with a conveying pipe, a plurality of heat exchange mechanism groups for recovering the waste heat of the raw coke oven gas are equidistantly arranged outside the conveying pipe, and each heat exchange mechanism group comprises an outer heat exchange unit for recovering the waste heat of the raw coke oven gas close to the wall part of the inner cavity of the conveying pipe and an inner heat exchange unit for recovering the waste heat of the raw coke oven gas close to the central part of the inner cavity of the conveying pipe.
Further, outer heat transfer unit includes first U-shaped vortex pipe, first spiral heat exchange tube and first annular water conservancy diversion piece, delivery pipe outer table wall circumference equidistance intercommunication has a plurality of first U-shaped vortex pipes, the delivery pipe inner chamber just is located the first annular water conservancy diversion piece of first U-shaped vortex pipe right side fixedly connected with, and first annular water conservancy diversion piece opening is for following the right side to left side to the toper that is close to delivery pipe axial lead and draws in gradually, every the outside all the cover of horizontal section of first U-shaped vortex pipe is equipped with first spiral heat exchange tube, and first spiral heat exchange tube communicates each other through the connecting pipe.
Furthermore, the left part and the right part of the first spiral heat exchange tube positioned above the conveying pipe are respectively communicated with a flow rising pipe and a flow falling pipe, and a heat conduction grid plate is communicated between the ends, far away from the first spiral heat exchange tube, of the flow rising pipe and the flow falling pipe.
Further, interior heat transfer unit is including gathering the flow tube, it passes through dead lever fixed connection at the conveying pipe inner chamber to gather the flow tube outside surface wall circumference equidistance intercommunication and has a plurality of second U-shaped vortex tubes, it just is located second U-shaped vortex tube right side fixedly connected with second annular water conservancy diversion piece to gather the flow tube inner chamber, and second annular water conservancy diversion piece opening for from the right side to left side gradually to being close to the toper that gathers flow tube axial lead and draw in, every the outside all overlaps of horizontal section of second U-shaped vortex tube is equipped with second spiral heat exchange tube, and second spiral heat exchange tube communicates each other through the connecting pipe, is located gather flow tube upper portion second spiral heat exchange tube left part and right part do not communicate and have first flow transmission pipe and second flow transmission pipe, the one end that second spiral heat exchange tube was kept away from to first flow transmission pipe passes conveying pipe wall intercommunication on the outer surface wall of rising flow tube, the one end that second spiral heat exchange tube was kept away from to second flow transmission pipe passes conveying pipe wall intercommunication on the outer surface wall of falling flow tube .
Further, the filtering mechanism comprises a filtering plate and a scraping plate, the filtering plate is fixedly connected to the inner cavity wall of the air inlet pipe, the filtering plate is in an inclined state with a lower left part and a higher right part, trapezoidal mounting grooves are formed in the front end wall and the rear cavity wall of the inner cavity of the air inlet pipe, sliding rods are fixedly connected to the chute walls of the two trapezoidal mounting grooves through spring telescopic rods, the outer parts of the two sliding rods are respectively connected with sliding plates in a sliding manner, a mounting plate is fixedly connected between the two sliding plates, one side end face, close to the filtering plate, of the mounting plate is fixedly connected with a cleaning plate, the scraping plate and a roller frame from top to bottom in sequence, the inner cavity of the roller frame is rotatably connected with a rotating shaft, a dust crushing roller is fixedly connected to the outer part of the rotating shaft, a rack is fixedly connected to the chute wall of the trapezoidal mounting groove located at the rear part through a spring telescopic pull rod, and the rear end of the rotating shaft is fixedly connected with a gear meshed with the rack, and the gear is positioned below the rack, and a driving unit for driving the mounting plate to reciprocate on the filter plate is arranged in the trapezoidal mounting groove positioned at the rear part.
Further, the drive unit includes the guide way, and the guide way has been seted up to the cell wall behind the trapezoidal mounting groove that is located the rear, the guide way is rectangular ring shape and unanimous with the inclination of filter, cell wall lower part has the direction fork board through the articulated direction fork board that has of rotary column cooperation torsional spring behind the guide way, the inside sliding connection of guide way has the sliding block, the terminal surface rotates before the sliding block and is connected with L shape connecting plate, the vertical section fixed connection of L shape connecting plate is at the mounting panel up end, a side end face fixedly connected with flange of mounting panel is kept away from to L shape connecting plate, the flange rear end face rotates through the cylinder and is connected with electric telescopic handle, electric telescopic handle keeps away from the one end of flange and rotates through the spliced pole to be connected on the trapezoidal mounting groove cell wall that is located the rear.
Furthermore, the lower end face of the air inlet pipe and the lower part of the filter plate are detachably communicated with a dust collecting box.
The heat exchange mechanism set has the beneficial effects that the first annular flow deflector and the first U-shaped flow disturbing pipe are matched with each other, when the coke oven crude gas passes through the outer heat exchange unit, the coke oven crude gas close to the inner wall part of the conveying pipe rotates in the first U-shaped flow disturbing pipe to form a vortex, and then the second U-shaped flow disturbing pipe and the second annular flow deflector in the inner heat exchange unit are matched with each other to form the vortex of the coke oven crude gas close to the central part of the conveying pipe, so that the contact time between the first spiral heat exchange pipe and the coke oven crude gas and the contact time between the second spiral heat exchange pipe and the coke oven crude gas can be prolonged, the heat exchange mechanism set can be in full contact with the coke oven crude gas, and the heat exchange efficiency is improved.
(2) The dust crushing roller rotates when the driving unit drives the mounting plate to reciprocate, dust adhered to the filter plates and agglomerated can be crushed, then the dust is swept down by the scraper plate, the cleaning plate and the scraper plate, and the filter plate is prevented from being blocked by the intercepted dust.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic sectional view of the heat exchange mechanism set of the present invention.
FIG. 3 is a schematic cross-sectional view of an internal heat exchange unit according to the present invention.
Fig. 4 is a schematic view of the installation structure of the filter mechanism of the present invention.
Fig. 5 is a schematic view of the structure of the joint between the sliding plate and the sliding rod according to the present invention.
Fig. 6 is a schematic structural diagram of a driving unit according to the present invention.
Fig. 7 is a schematic view of a guide groove installation structure of the present invention.
In the figure: 1. an air inlet pipe; 2. a filtering mechanism; 21. a filter plate; 22. a squeegee; 23. a trapezoidal mounting groove; 24. a spring telescopic rod; 25. a slide bar; 26. a sliding plate; 27. mounting a plate; 28. cleaning the board; 29. a roller frame; 210. a rotating shaft; 211. a dust crushing roller; 212. a spring telescopic pull rod; 213. a rack; 214. a gear; 215. a drive unit; 2151. a guide groove; 2152. a guide fork plate; 2153. a slider; 2154. an L-shaped connecting plate; 2155. an electric telescopic rod; 3. a delivery pipe; 4. a heat exchange mechanism group; 41. an external heat exchange unit; 411. a first U-shaped turbulent flow tube; 412. a first spiral heat exchange tube; 413. a first annular flow deflector; 42. an internal heat exchange unit; 421. a current collecting pipe; 422. a second U-shaped turbulent flow tube; 423. a second annular guide vane; 424. a second spiral heat exchange tube; 5. a riser pipe; 6. a down flow pipe; 7. a heat-conductive grid plate; 8. a first transfer pipe; 9. a second flow transfer tube; 10. a dust collecting box.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 4, the present invention provides a technical solution: the utility model provides a coke oven raw gas waste heat recovery device, including intake pipe 1 and fixed connection at intake pipe 1 upper portion and rather than the air pump that is linked together, 1 left part in intake pipe is provided with the filtering mechanism 2 that is used for filtering the dust to the raw gas, 1 right part intercommunication in intake pipe has conveyer pipe 3, conveyer pipe 3 outside equidistance is installed a plurality of and is used for the heat transfer mechanism group 4 to raw gas waste heat recovery, every heat transfer mechanism group 4 all including be used for the outer heat transfer unit 41 to the raw gas waste heat recovery who is close to conveyer pipe 3 inner chamber wall portion and the interior heat transfer unit 42 to the raw gas waste heat recovery who is close to conveyer pipe 3 inner chamber central part.
Referring to fig. 2, the external heat exchanging unit 41 includes a first U-shaped turbulent flow tube 411, a first spiral heat exchanging tube 412 and a first annular baffle 413, the plurality of first U-shaped turbulent flow tubes 411 are equidistantly communicated with the circumference of the outer wall of the conveying pipe 3, the first annular baffle 413 is fixedly connected to the inner cavity of the conveying pipe 3 and located on the right side of the first U-shaped turbulent flow tube 411, the opening of the first annular baffle 413 is a cone shape gradually converging from right to left toward the axial lead of the conveying pipe 3, the first spiral heat exchanging tube 412 is sleeved outside the transverse section of each first U-shaped turbulent flow tube 411, the first spiral heat exchanging tubes 412 are communicated with each other through a connecting tube, the left part and the right part of the first spiral heat exchanging tube 412 located above the conveying pipe 3 are respectively communicated with an up-flow tube 5 and a down-flow tube 6, and a heat conducting grid 7 is communicated between the ends of the up-flow tube 5 and the down-flow tube 6 far away from the first spiral heat exchanging tube 412.
The coke oven crude gas is sucked through the air inlet pipe 1 by starting the air pump, then enters the conveying pipe 3 after passing through the filtering mechanism 2, the coke oven crude gas firstly contacts the outer heat exchange unit 41 in the heat exchange mechanism group 4 when flowing in the conveying pipe 3, the coke oven crude gas close to the inner cavity wall part of the conveying pipe 3 is intercepted through the first annular flow deflector 413 in the outer heat exchange unit 41, then enters the first U-shaped spoiler pipe 411 under the conical shape of the first annular flow deflector 413, then the suction force is generated at the left opening of the first U-shaped spoiler pipe 411 under the flowing of the coke oven crude gas in the conveying pipe 3, the coke oven crude gas inside the first U-shaped spoiler pipe 411 flows out from the left opening of the first U-shaped spoiler pipe 411, so that the coke oven crude gas close to the inner surface wall part of the conveying pipe 3 forms a turbulent flow to increase the contact times with the first U-shaped spoiler pipe 411 to increase the contact area, and the heat is conducted to the first spiral heat exchange tube 412 sleeved outside the first U-shaped turbulent flow tube 411, so that the liquid in the first spiral heat exchange tube 412 is heated, then rises and enters the riser tube 5, then enters the heat conduction grid plate 7, the heat can be utilized, the temperature of the liquid after the heat is utilized is reduced, then the liquid flows into the downcomer tube 6 and returns to the first spiral heat exchange tube 412 again for secondary heat exchange, and the raw gas close to the inner surface wall part of the conveying tube 3 is continuously enabled to form turbulent flow through the plurality of outer heat exchange units 41, so that the contact area between the raw gas and the first U-shaped turbulent flow tube 411 is increased, and the heat exchange efficiency is improved.
Referring to fig. 3, in this embodiment, the inner heat exchange unit 42 includes a flow collecting pipe 421, the flow collecting pipe 421 is fixedly connected to an inner cavity of the conveying pipe 3 through a fixing rod, a plurality of second U-shaped turbulence pipes 422 are equidistantly communicated with an outer wall circumference of the flow collecting pipe 421, a second annular baffle 423 is fixedly connected to the inner cavity of the flow collecting pipe 421 and located on a right side of the second U-shaped turbulence pipes 422, an opening of the second annular baffle 423 is a cone shape gradually converging from right to left toward an axial lead of the flow collecting pipe 421, a second spiral heat exchange pipe 424 is sleeved outside a transverse section of each second U-shaped turbulence pipe 422, the second spiral heat exchange pipes 424 are communicated with each other through a connecting pipe, a first flow conveying pipe 8 and a second flow conveying pipe 9 are respectively communicated with a left portion and a right portion of a second spiral heat exchange pipe 424 located on an upper portion of the flow collecting pipe 421, one end of the first flow conveying pipe 8, which is far away from the second spiral heat exchange pipe 424, passes through a pipe wall of the conveying pipe 3 and is communicated with an outer wall of the flow rising pipe 5, one end of the second flow transfer pipe 9 far away from the second spiral heat exchange pipe 424 passes through the pipe wall of the conveying pipe 3 and is communicated with the outer surface wall of the downcomer 6.
When the raw gas in the central portion of the conveying pipe 3 passes through the internal heat exchange mechanism, the raw gas firstly enters the inside of the flow gathering pipe 421 under the action of the flow gathering pipe 421, then enters the second U-shaped turbulence pipe 422 from the right opening of the second U-shaped turbulence pipe 422 under the tapered shape of the second annular flow deflector 423, and conducts heat to the second spiral heat exchange pipe 424, then transfers the heat to the riser pipe 5 through the first flow transfer pipe 8, re-conveys the liquid with the decreased temperature to the second spiral heat exchange pipe 424 through the second flow transfer pipe 9 for heat exchange, and then drives the raw gas in the second U-shaped turbulence pipe 422 to flow out from the left opening and re-enter the flow gathering pipe 421 through the negative pressure formed by the opening at the left portion of the second U-shaped turbulence pipe 422 by the flow of the raw gas in the flow gathering pipe 421, so that the contact area between the raw gas and the second U-shaped turbulence pipe 422 can be increased, can recover the heat of the raw coke oven gas at different levels in the conveying pipe 3, further improves the waste heat recovery efficiency,
referring to fig. 4, 5 and 6, in this embodiment, the filtering mechanism 2 includes a filtering plate 21 and a scraping plate 22, the filtering plate 21 is fixedly connected to the inner cavity wall of the air inlet pipe 1, the filtering plate 21 is in an inclined state with a lower left and a higher right, trapezoidal mounting grooves 23 are respectively formed on the front end wall and the rear cavity wall of the inner cavity of the air inlet pipe 1, sliding rods 25 are fixedly connected to the inclined groove walls of the two trapezoidal mounting grooves 23 through spring telescopic rods 24, sliding plates 26 are respectively and slidably connected to the outsides of the two sliding rods 25, a mounting plate 27 is fixedly connected between the two sliding plates 26, a cleaning plate 28, the scraping plate 22 and a roller frame 29 are sequentially and fixedly connected to the mounting plate 27 from top to bottom near the side end surface of the filtering plate 21, a rotating shaft 210 is rotatably connected to the inner cavity of the roller frame 29, a dust crushing roller 211 is fixedly connected to the outside of the rotating shaft 210, a rack 213 is fixedly connected to the inclined groove wall of the trapezoidal mounting groove 23 located behind through the spring telescopic rod 212, the rear end of the rotating shaft 210 is coaxially and fixedly connected with a gear 214 engaged with the rack 213, the gear 214 is positioned below the rack 213, and a driving unit 215 for driving the mounting plate 27 to reciprocate on the filter plate 21 is installed in the trapezoidal mounting groove 23 positioned at the rear.
Referring to fig. 5 of the drawings, a schematic diagram of a display device, fig. 6 and 7, the driving unit 215 includes a guide groove 2151, a guide groove 2151 is provided on the rear groove wall of the trapezoidal mounting groove 23 located behind, the guide groove 2151 is rectangular ring-shaped and is consistent with the inclination angle of the filter plate 21, the lower portion of the rear groove wall of the guide groove 2151 is hinged to a guide fork plate 2152 through a rotating column matching torsion spring, a sliding block 2153 is slidably connected inside the guide groove 2151, the front end face of the sliding block 2153 is rotatably connected with an L-shaped connecting plate 2154, the vertical section of the L-shaped connecting plate 2154 is fixedly connected to the upper end face of the mounting plate 27, a side end face of the L-shaped connecting plate 2154 far away from the mounting plate 27 is fixedly connected with a convex plate, the rear end face of the convex plate is rotatably connected with an electric telescopic rod 2155 through a cylinder, one end of the electric telescopic rod 2155 far away from the convex plate is rotatably connected to the groove wall of the trapezoidal mounting groove 23 located behind through a connecting column, and the lower end face of the air inlet pipe 1 and located below the filter plate 21 can be detachably communicated with a dust collection box 10.
Drive sliding block 2153 reciprocating motion in guide way 2151 through starting electric telescopic handle 2155, at the in-process of lapse, sliding block 2153 is located the annular of the lower part of guide way 2151, at this moment, scraper blade 22, clean board 28 and garrulous dirt roller 211 all laminate on the left end face of filter 21, sliding block 2153 drives mounting panel 27 through L shape connecting plate 2154 and moves down, and drive pivot 210 through the wheel carrier and move down, make gear 214 walk on rack 213 and self rotation drive pivot 210 rotates simultaneously, pivot 210 drives garrulous dirt roller 211 and rotates, break the adhesion at filter 21 table wall and the dust of caking and fall, scrape down through scraper blade 22 afterwards, further clean through cleaning board 28 afterwards.
The dust removed is moved downwards during the downward movement of the mounting plate 27, when the sliding block 2153 moves to the lower end of the guide groove 2151, the mounting plate 27 is located at the lower part of the filter plate 21, the dust cleaned by gravity and the inclined shape of the filter plate 21 falls into the collecting box, then the mounting plate 27 is moved upwards by the sliding block 2153, the sliding block 2153 slides to the lower end of the guide groove 2151 to press the guide fork plate 2152 to open, when the sliding block 2153 finishes moving to the lower end of the guide groove 2151, the sliding block 2153 is separated from the guide fork plate 2152, the guide fork plate 2152 is closed by the torsion spring, then the sliding block 2153 rises and slides up from the left side of the guide fork plate 2152 to enter the upper ring of the guide groove 2151 and lift the mounting plate 27 to separate the mounting plate 27 from the filter plate 21, and the mounting plate 27 then drives the spring expansion rod 24 to stretch by the sliding rod 25, the dust crushing roller 211 is lifted to drive the gear 214 to lift, the gear 214 is lifted by pushing the rack 213 to enable the spring telescopic pull rod 212 to be stretched, when the rack 213 is pushed by the gear 214 to lift the position under the pulling action of the spring telescopic pull rod 212, the gear 214 and the rack 213 can be meshed and connected together all the time, the dust is prevented from being driven to the upper part of the filter plate 21 by the scraper 22 and the cleaning plate 28 in the lifting process of the mounting plate 27, when the sliding block 2153 completely moves to the upper part of the guide groove 2151, the sliding block 2153 slides into the lower annular part of the guide groove 2151 under the action of gravity, the scraper 22, the cleaning plate 28 and the dust crushing roller 211 are contacted with the filter plate 21 again, then the dust on the filter plate 21 is cleaned by moving downwards and repeating the above operation, the filter plate 21 is prevented from being blocked, and the subsequent waste heat recovery can be carried out normally.
When the device works, coke oven crude gas is introduced from the left part of the gas inlet pipe 1, then the gas pump is started to drive the coke oven crude gas to move, dust mixed in the coke oven crude gas is filtered through the filtering mechanism 2, the filtered coke oven crude gas enters the conveying pipe 3, and waste heat in the coke oven crude gas in the conveying pipe 3 is subjected to heat exchange and recovery through the heat exchange mechanism group 4.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a coke oven raw coke oven gas waste heat recovery device, includes intake pipe (1) and fixed connection in intake pipe (1) upper portion and rather than the air pump that is linked together, its characterized in that: intake pipe (1) left part is provided with and is used for filtering mechanism (2) of dust to the raw coke oven gas, intake pipe (1) right part intercommunication has conveyer pipe (3), conveyer pipe (3) outside equidistance is installed a plurality of and is used for heat exchange mechanism group (4) to raw coke oven gas waste heat recovery, every heat exchange mechanism group (4) all including being used for outer heat exchange unit (41) and interior heat exchange unit (42) to the raw coke oven gas waste heat recovery that is close to conveyer pipe (3) inner chamber central part near the raw coke oven gas waste heat recovery of conveyer pipe (3).
2. The coke oven raw gas waste heat recovery device of claim 1, characterized in that: outer heat transfer unit (41) include first U-shaped turbulence pipe (411), first spiral heat exchange tube (412) and first annular water conservancy diversion piece (413), conveyer pipe (3) exterior wall circumference equidistance intercommunication has a plurality of first U-shaped turbulence pipe (411), conveyer pipe (3) inner chamber just is located first U-shaped turbulence pipe (411) right side fixedly connected with first annular water conservancy diversion piece (413), and first annular water conservancy diversion piece (413) opening is for following the right side to left side and gradually to being close to the toper that conveyer pipe (3) axial lead drew in, every the outside all cover of horizontal section of first U-shaped turbulence pipe (411) is equipped with first spiral heat exchange tube (412), and first spiral heat exchange tube (412) communicate each other through the connecting pipe.
3. The coke oven raw gas waste heat recovery device of claim 2, characterized in that: the left part and the right part of the first spiral heat exchange tube (412) above the conveying tube (3) are respectively communicated with a flow rising tube (5) and a flow falling tube (6), and one ends, far away from the first spiral heat exchange tube (412), of the flow rising tube (5) and the flow falling tube (6) are communicated with a heat conduction grid plate (7).
4. The coke oven raw gas waste heat recovery device of claim 3, characterized in that: interior heat transfer unit (42) is including gathering flow tube (421), it is at conveyer pipe (3) inner chamber to gather flow tube (421) through dead lever fixed connection, it has a plurality of second U-shaped turbulence pipe (422) to gather flow tube (421) exterior wall circumference equidistance intercommunication, it just is located second U-shaped turbulence pipe (422) right side fixedly connected with second annular water conservancy diversion piece (423) to gather flow tube (421) inner chamber, and second annular water conservancy diversion piece (423) opening for from the right side to left side gradually to the toper that draws in near gathering flow tube (421) axial lead, every the outside equipartition cover of horizontal section of second U-shaped turbulence pipe (422) is equipped with second spiral heat exchange tube (424), and second spiral heat exchange tube (424) communicate each other through the connecting pipe, is located gather flow tube (421) upper portion second spiral heat exchange tube (424) left part and right part do not communicate have first flow tube (8) and second flow tube (9), one end, far away from the second spiral heat exchange tube (424), of the first heat transfer tube (8) penetrates through the tube wall of the conveying tube (3) to be communicated with the outer surface wall of the riser tube (5), and one end, far away from the second spiral heat exchange tube (424), of the second heat transfer tube (9) penetrates through the tube wall of the conveying tube (3) to be communicated with the outer surface wall of the downcomer tube (6).
5. The coke oven raw gas waste heat recovery device of claim 1, characterized in that: the filter mechanism (2) comprises a filter plate (21) and a scraper (22), the filter plate (21) is fixedly connected with the inner cavity wall of the air inlet pipe (1) and the filter plate (21) is in a low-left high-right inclined state, trapezoidal mounting grooves (23) are formed in the front end wall and the rear cavity wall of the inner cavity of the air inlet pipe (1), two sliding rods (25) are fixedly connected to the inclined groove walls of the trapezoidal mounting grooves (23) through spring telescopic rods (24), sliding plates (26) are respectively and slidably connected to the outer parts of the two sliding rods (25), a mounting plate (27) is fixedly connected between the two sliding plates (26), a sweeping plate (28), the scraper (22) and a roller frame (29) are fixedly connected to one end face, close to the filter plate (21), of the mounting plate (27) from top to bottom in sequence, a rotating shaft (210) is rotatably connected to the inner cavity of the roller frame (29), a dust crushing roller (211) is fixedly connected to the outer part of the rotating shaft (210), be located the rear through spring telescopic pull rod (212) fixedly connected with rack (213) on the chute wall of trapezoidal mounting groove (23), gear (214) that pivot (210) rear end and axle center fixedly connected with and rack (213) mesh mutually, and gear (214) are located the below of rack (213), are located the rear trapezoidal mounting groove (23) internally mounted has drive unit (215) that are used for driving mounting panel (27) reciprocating motion on filter (21).
6. The coke oven crude gas waste heat recovery device of claim 5, wherein: the driving unit (215) comprises a guide groove (2151), the rear groove wall of the rear trapezoidal mounting groove (23) is provided with the guide groove (2151), the guide groove (2151) is rectangular ring-shaped and is consistent with the inclination angle of the filter plate (21), the lower part of the rear groove wall of the guide groove (2151) is hinged with a guide fork plate (2152) through a rotating column matched with a torsion spring, a sliding block (2153) is connected inside the guide groove (2151) in a sliding manner, the front end face of the sliding block (2153) is rotatably connected with an L-shaped connecting plate (2154), the vertical section of the L-shaped connecting plate (2154) is fixedly connected with the upper end surface of the mounting plate (27), the end surface of one side of the L-shaped connecting plate (2154) far away from the mounting plate (27) is fixedly connected with a convex plate, the flange rear end face is connected with electric telescopic handle (2155) through the cylinder rotation, the one end that the flange was kept away from in electric telescopic handle (2155) is passed through the spliced pole and is rotated the connection on trapezoidal mounting groove (23) cell wall that is located the rear.
7. The coke oven crude gas waste heat recovery device of claim 5, wherein: the lower end face of the air inlet pipe (1) is detachably communicated with a dust collecting box (10) below the filter plate (21).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210021515.4A CN114353557B (en) | 2022-01-10 | 2022-01-10 | Raw coke oven gas waste heat recovery device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210021515.4A CN114353557B (en) | 2022-01-10 | 2022-01-10 | Raw coke oven gas waste heat recovery device |
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| CN114353557B CN114353557B (en) | 2023-11-03 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103320149A (en) * | 2013-05-24 | 2013-09-25 | 无锡亿恩科技股份有限公司 | Coke oven ascension pipe crude gas waste heat recycling system |
| CN105018113A (en) * | 2015-07-06 | 2015-11-04 | 北京华泰焦化工程技术有限公司 | Ascension pipe of coke oven and method of applying same to recovery heat of raw coke oven gas |
| CN109433788A (en) * | 2018-10-29 | 2019-03-08 | 聂凤玲 | Clinical waste environment-friendly processing unit |
| CN111336487A (en) * | 2019-12-07 | 2020-06-26 | 平罗县阳光焦化有限公司 | Coke oven raw gas and waste gas waste heat recycling system |
| CN211570541U (en) * | 2020-01-15 | 2020-09-25 | 武汉方特工业设备技术有限公司 | Heat exchanger with turbulence coil pipe inside ascending pipe of coke oven |
-
2022
- 2022-01-10 CN CN202210021515.4A patent/CN114353557B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103320149A (en) * | 2013-05-24 | 2013-09-25 | 无锡亿恩科技股份有限公司 | Coke oven ascension pipe crude gas waste heat recycling system |
| CN105018113A (en) * | 2015-07-06 | 2015-11-04 | 北京华泰焦化工程技术有限公司 | Ascension pipe of coke oven and method of applying same to recovery heat of raw coke oven gas |
| CN109433788A (en) * | 2018-10-29 | 2019-03-08 | 聂凤玲 | Clinical waste environment-friendly processing unit |
| CN111336487A (en) * | 2019-12-07 | 2020-06-26 | 平罗县阳光焦化有限公司 | Coke oven raw gas and waste gas waste heat recycling system |
| CN211570541U (en) * | 2020-01-15 | 2020-09-25 | 武汉方特工业设备技术有限公司 | Heat exchanger with turbulence coil pipe inside ascending pipe of coke oven |
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| CN114353557B (en) | 2023-11-03 |
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