CN116045685B - Low-temperature waste heat recovery system of prebaked anode roasting furnace - Google Patents
Low-temperature waste heat recovery system of prebaked anode roasting furnace Download PDFInfo
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- CN116045685B CN116045685B CN202310357460.9A CN202310357460A CN116045685B CN 116045685 B CN116045685 B CN 116045685B CN 202310357460 A CN202310357460 A CN 202310357460A CN 116045685 B CN116045685 B CN 116045685B
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- flue gas
- smoke
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
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- 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
- F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
- F27D25/008—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag using fluids or gases, e.g. blowers, suction units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0073—Seals
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to the technical field of low-temperature waste heat recycling of a prebaked anode roasting furnace, and provides a low-temperature waste heat recycling system of the prebaked anode roasting furnace, which comprises a cooling movable frame, wherein the cooling movable frame is movably arranged above a smoke recycling port, a smoke collecting barrel is arranged on the cooling movable frame and moves along with the cooling movable frame, one end of the smoke collecting barrel is provided with a plurality of smoke collecting inlet ports, the other end of the smoke collecting barrel is provided with a smoke collecting outlet port, each branch connecting pipe is communicated with one smoke collecting inlet port, the smoke collecting barrel is arranged on one side of the smoke collecting barrel, one side of the smoke collecting barrel is provided with a smoke discharging inlet port, a ceramic heat exchange condensing rotary drum is provided with a smoke condensing channel and a heat exchange liquid channel, the smoke condensing inlet port and the smoke condensing outlet port are respectively communicated with the smoke collecting outlet port and the smoke discharging inlet port, and a rotary driving component drives the ceramic heat exchange condensing rotary drum to rotate. Through the technical scheme, the technical problems that the sensible heat of high temperature in the flue gas of the prebaked anode roasting furnace is utilized, but the waste heat of low temperature cannot be effectively utilized in the related art are solved.
Description
Technical Field
The invention relates to the technical field of low-temperature waste heat recovery and utilization of prebaked anode roasting furnaces, in particular to a low-temperature waste heat recovery system of a prebaked anode roasting furnace.
Background
The anode roasting is one of the main heat treatment procedures in the production process of carbon products, the green anode products after the compression are placed in an anode roasting furnace according to a certain mode, and the heat treatment process is carried out according to a certain heating rate under the condition of isolating air. The shaped green product consists of two parts of coke particles and a binder. The purpose of roasting is to char the binder, form a coke network between the aggregate particles, firmly join them together, and give the product strength and electrical, thermal and corrosion resistance. The prebaked anode roasting furnace is a roasting furnace specially used for roasting anode materials, the prebaked anode materials are roasted sequentially through a heater, smoke generated in the heating process can flow through anode materials to be roasted subsequently for preheating, and the anode materials which are cooled after roasting before can also preheat air required in the heating process of the heater, so that heat is well recombined, and the energy utilization rate is greatly improved. Although the prebaked anode roasting furnace takes the preheating of air by the cooled anode and the generated flue gas to preheat the anode to be roasted, the prebaked anode roasting furnace does not mean that the prebaked anode roasting furnace utilizes all waste heat, the prebaked anode roasting furnace in the prior art still needs to be improved again to further improve the energy utilization rate, for example, the generated flue gas preheats the anode to be roasted, the mode mainly utilizes sensible heat in high temperature, as for latent heat such as low-temperature waste heat, the sensible heat cannot be effectively utilized, and most of the low-temperature latent heat of the prebaked anode roasting furnace is discharged through a smoke discharging device, and the low-temperature latent heat of the prebaked anode roasting furnace has lower utilization value than the high-temperature sensible heat, but has stable output and potential utilization value, so that the prebaked anode roasting furnace is reasonably utilized to avoid certain waste heat.
Disclosure of Invention
The invention provides a low-temperature waste heat recovery system of a prebaked anode roasting furnace, which solves the technical problems that the sensible heat of high temperature in flue gas of the prebaked anode roasting furnace is utilized, but the low-temperature waste heat cannot be effectively utilized in the related art.
The technical scheme of the invention is as follows:
the low-temperature waste heat recovery system of the prebaked anode roasting furnace is used for recovering the low-temperature waste heat of the anode roasting furnace, and the anode roasting furnace is provided with a flue gas recovery port and comprises
A cooling moving frame which is arranged above the smoke recovery port in a moving way,
a smoke collecting tube which is arranged on the cooling moving frame and moves along with the cooling moving frame, one end of the smoke collecting tube is provided with a plurality of smoke collecting inlet ports, the other end is provided with a smoke collecting outlet port,
branch connecting pipes, a plurality of branch connecting pipes, each branch connecting pipe is communicated with one smoke collecting inlet,
the smoke exhaust tube is arranged at one side of the smoke exhaust tube, a smoke exhaust inlet is arranged at one side of the smoke exhaust tube close to the smoke exhaust tube,
the ceramic heat exchange condensation rotary drum is rotatably arranged between the smoke collecting barrel and the smoke discharging barrel, and is provided with two smoke condensation channels and a heat exchange liquid channel, the two smoke condensation channels are arranged into a double-spiral structure, two ends of the smoke condensation channels are respectively provided with a smoke condensation inlet and a smoke condensation outlet, the heat exchange liquid channel is spirally arranged around the smoke condensation channels, the smoke condensation inlet and the smoke condensation outlet are respectively communicated with the smoke collecting outlet and the smoke discharging inlet,
and the rotation driving assembly drives the ceramic heat exchange condensing rotary drum to rotate.
As a further technical scheme, the smoke collecting tube and one end of the smoke discharging tube, which are close to each other, are provided with sealing plates, the smoke collecting outlet and the smoke discharging inlet are arranged on the sealing plates, and the area of the sealing plates is smaller than the sectional areas of the smoke collecting tube and the smoke discharging tube;
when the smoke condensing inlet and the smoke condensing outlet rotate to be opposite to the sealing plate, the sealing plate is clung to the sealing plate, and the sealing plate is at least three smoke condensing inlets and at least three smoke condensing outlets can be sequentially arranged.
As a further technical scheme, the spiral turns of the flue gas condensing channel are 0.8-1,
and when the flue gas condensation inlets and the flue gas condensation outlets at two ends of one flue gas condensation channel are respectively communicated with the flue gas collecting outlet and the flue gas discharging inlet, the flue gas condensation inlets and the flue gas condensation outlets at two ends of the other flue gas condensation channel are exposed.
As a further technical scheme, the ceramic heat exchange condensing drum further comprises a condensing flue cleaning device, wherein both sides of the ceramic heat exchange condensing drum are provided with the condensing flue cleaning device, and the condensing flue cleaning device comprises
A moving pipe which is arranged in a moving way and extends into the flue gas condensing channel after moving,
the high-pressure spray head is arranged at the end part of the moving pipe and is used for cleaning the inner wall of the flue gas condensation channel.
As a further technical proposal, also comprises
The sliding connecting cylinder is arranged at one end of the branch connecting pipe in a sliding way and is positioned above the smoke recovery port, the sliding connecting cylinder is close to or far away from the smoke recovery port after sliding, is used for sucking the smoke exhausted by the smoke recovery port,
the first linear driving piece drives the sliding connecting cylinder to slide.
As a further technical proposal, the flue gas condensing channel is provided with a liquid outlet,
and also comprises
A liquid discharge hose which is communicated with the liquid discharge port,
the heat exchange liquid feeding hose and the heat exchange liquid discharging hose are respectively communicated with two ends of the heat exchange liquid channel.
As a further technical scheme, the ceramic heat exchange condensing rotary drum also comprises a sealing component, wherein the sealing component is arranged between the smoke collecting tube, the smoke discharging tube and the ceramic heat exchange condensing rotary drum, and the sealing component comprises
A first annular seal and a second annular seal, both of which are slidably disposed on the ceramic heat exchange condensing drum along an axial direction of the ceramic heat exchange condensing drum, an annular region being formed between the first annular seal and the second annular seal,
the first elastic piece is arranged on the ceramic heat exchange condensation rotary drum, the force for tightly attaching the first annular sealing piece and the second annular sealing piece to the sealing plate is provided, and the flue gas condensation inlet and the flue gas condensation outlet are both positioned in the annular area.
As a further technical solution, the closing plate has a first arc-shaped groove and a second arc-shaped groove, the first annular sealing member extends into the first arc-shaped groove, and the second annular sealing member extends into the second arc-shaped groove.
As a further technical scheme, the sealing assembly further comprises
The first strip-shaped sealing piece and the second strip-shaped sealing piece are both arranged on the sealing plate in a sliding way and are close to or far away from the ceramic heat exchange condensation rotary drum after sliding, the first strip-shaped sealing piece and the second strip-shaped sealing piece are both positioned in the annular area,
the first strip-shaped sealing piece and the second strip-shaped sealing piece are two groups, one group is positioned at two sides of the smoke collecting outlet, the other group is positioned at two sides of the smoke discharging inlet,
and the second elastic piece is arranged on the ceramic heat exchange condensing rotary drum and provides force for the first strip-shaped sealing piece and the second strip-shaped sealing piece to cling to the ceramic heat exchange condensing rotary drum.
As a further technical scheme, the sealing assembly further comprises
The third strip-shaped sealing piece and the fourth strip-shaped sealing piece are respectively positioned at the two ends of the first arc-shaped groove, and are positioned in the annular area,
and the third elastic piece is arranged on the ceramic heat exchange condensing rotary drum and provides force for the third strip-shaped sealing piece and the fourth strip-shaped sealing piece to cling to the ceramic heat exchange condensing rotary drum.
The working principle and the beneficial effects of the invention are as follows:
in this embodiment, considering that the high-temperature sensible heat in the flue gas of the prebaked anode roasting furnace in the prior art is utilized, but the low-temperature waste heat cannot be effectively utilized, in order to realize that the low-temperature waste heat of the flue gas of the prebaked anode roasting furnace can be well utilized, a low-temperature waste heat recovery system of the prebaked anode roasting furnace is specifically designed, and the low-temperature latent heat in the prebaked anode roasting furnace can be utilized, so that the energy utilization rate is improved. Specifically, the anode roasting furnace is provided with a smoke recovery port, and the branch connecting pipe connected with the smoke collection inlet of the smoke collection pipe can be communicated with a plurality of smoke recovery ports, so that when negative pressure suction is carried out on one smoke collection inlet, the other smoke collection inlet is waited, the moving times of the cooling moving frame can be reduced, and the roasting efficiency is improved. And after the low-temperature smoke is sucked by the smoke collecting tube, the low-temperature smoke is sent into the ceramic heat exchange condensation rotary drum through the smoke collecting outlet for condensation heat exchange, and finally the lower-temperature smoke is discharged through the smoke discharging tube. The ceramic heat exchange condensing rotary drum between the smoke collecting outlet and the smoke discharging inlet condenses and absorbs low-temperature smoke, so that latent heat can be well utilized. After flue gas passes through the flue gas condensation channel in the ceramic heat exchange condensation rotary drum, liquefaction can take place to release heat, and the heat exchange liquid passageway is continuous to send into the heat exchange, and the heat exchange liquid passageway can be with the fine absorption of flue gas condensation channel absorptive heat and take away, and ceramic heat exchange condensation rotary drum is whole ceramic material, more does benefit to thermal transmission, and the heat exchange liquid passageway spiral encircles flue gas condensation channel and the distance is very near, makes heat exchange efficiency high enough, makes latent heat utilization become possible.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the partial enlarged structure of A in FIG. 1;
FIG. 3 is a schematic side view of the present invention;
FIG. 4 is a schematic view of the internal structure of the present invention;
FIG. 5 is a schematic view of the cross-sectional structure of A-A in FIG. 3;
FIG. 6 is a schematic view of a portion of a seal assembly according to the present invention;
FIG. 7 is a schematic view of the overall structure of the seal assembly of the present invention;
in the figure: the device comprises an anode roasting furnace-1, a flue gas recovery port-101, a cooling moving frame-2, a flue gas collecting tube-3, a flue gas collecting inlet-301, a flue gas collecting outlet-302, a sealing plate-303, a branch connecting tube-4, a flue gas discharging tube-5, a flue gas inlet-501, a ceramic heat exchange condensing drum-6, a flue gas condensing channel-601, a heat exchange liquid channel-602, a flue gas condensing inlet-603, a flue gas condensing outlet-604, a liquid discharging port-605, a rotary driving assembly-7, a sealing assembly-8, a first annular sealing member-801, a second annular sealing member-802, an annular region-803, a first elastic member-804, a first arc-shaped groove-304, a second arc-shaped groove-305, a first strip sealing member-805, a second strip sealing member-806, a second elastic member-807, a third strip sealing member-808, a fourth strip sealing member-809, a third elastic member-810, a condensing cleaning device-9, a moving tube-901, a high-pressure nozzle-902, a sliding connecting tube-10, a first linear driving member-12, a liquid discharging tube-13, and a heat exchange hose.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by one of ordinary skill 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.
As shown in fig. 1-4, the embodiment provides a low-temperature waste heat recovery system of a prebaked anode furnace for recovering low-temperature waste heat of an anode furnace 1, wherein the anode furnace 1 has a flue gas recovery port 101, comprising
A cooling moving frame 2, the cooling moving frame 2 is arranged above the flue gas recovery port 101 in a moving way,
the smoke collecting tube 3, the smoke collecting tube 3 is arranged on the cooling moving frame 2 to move along, one end of the smoke collecting tube 3 is provided with a plurality of smoke collecting inlet 301, the other end is provided with a smoke collecting outlet 302,
a smoke discharging tube 5, the smoke discharging tube 5 is arranged at one side of the smoke collecting tube 3, a smoke discharging inlet 501 is arranged at one side close to the smoke collecting tube 3,
a ceramic heat exchange condensation rotary drum 6, the ceramic heat exchange condensation rotary drum 6 is rotatably arranged between the smoke collecting tube 3 and the smoke discharging tube 5, and is provided with two smoke condensation channels 601 and a heat exchange liquid channel 602, the two smoke condensation channels 601 are arranged into a double-spiral structure, two ends of the smoke condensation channel 601 are respectively provided with a smoke condensation inlet 603 and a smoke condensation outlet 604, the heat exchange liquid channel 602 is spirally arranged around the smoke condensation channel 601, the smoke condensation inlet 603 and the smoke condensation outlet 604 are respectively communicated with the smoke collecting outlet 302 and the smoke discharging inlet 501,
and the rotation driving assembly 7 drives the ceramic heat exchange condensing rotary drum 6 to rotate.
In this embodiment, considering that the high-temperature sensible heat in the flue gas of the prebaked anode roasting furnace in the prior art is utilized, but the low-temperature waste heat cannot be effectively utilized, in order to realize that the low-temperature waste heat of the flue gas of the prebaked anode roasting furnace can be well utilized, a low-temperature waste heat recovery system of the prebaked anode roasting furnace is specifically designed, and the low-temperature latent heat in the prebaked anode roasting furnace can be utilized, so that the energy utilization rate is improved. Specifically, the anode roasting furnace 1 has the flue gas recovery port 101, and the branch connecting pipe 4 connected with the flue gas collection inlet 301 of the flue gas collection tube 3 can be communicated with the plurality of flue gas recovery ports 101, and when negative pressure suction is performed on one flue gas collection inlet 301, the other flue gas collection inlet is waited, so that the moving times of the cooling moving frame 2 can be reduced, and the roasting efficiency is improved. The low-temperature flue gas is sucked by the smoke collecting tube 3 and then is sent into the ceramic heat exchange condensation rotary drum 6 through the smoke collecting outlet 302 to carry out condensation heat exchange, and finally the lower-temperature flue gas is discharged through the smoke discharging tube 5. The ceramic heat exchange condensation drum 6 between the smoke collecting outlet 302 and the smoke discharging inlet 501 condenses and absorbs the low-temperature smoke, so that the latent heat can be well utilized. After flue gas passes through the flue gas condensation channel 601 in the ceramic heat exchange condensation rotary drum 6, liquefaction can occur, thereby releasing heat, the heat exchange liquid channel 602 continuously feeds into heat exchange, the heat exchange liquid channel 602 can absorb and take away the heat absorbed by the flue gas condensation channel 601 well, the ceramic heat exchange condensation rotary drum 6 is made of ceramic materials as a whole, heat transfer is facilitated, the heat exchange liquid channel 602 spirally surrounds the flue gas condensation channel 601 and is quite close to the flue gas condensation channel 601, heat exchange efficiency is high enough, and latent heat utilization becomes possible.
In this embodiment, considering that when flue gas condensation is performed in the flue gas condensation channel 601, certain damage is caused to the flue gas condensation channel 601, particularly because the anode material generally contains certain corrosiveness, the long-term work can cause great damage to the flue gas condensation channel 601, accumulated dirt can corrode the inner wall of the flue gas condensation channel 601 on the one hand, and on the other hand, the heat absorption efficiency of the flue gas condensation channel 601 can be greatly influenced, which is one of reasons that latent heat in flue gas of a prebaked anode roasting furnace is difficult to utilize. The ceramic heat exchange condensing rotary drum 6 is driven by the rotary driving assembly 7 to rotate, so that heat exchange is alternately performed on two flue gas condensing channels 601 in the ceramic heat exchange condensing rotary drum 6, one of the two flue gas condensing channels is located at a condensing position for condensing heat exchange, and the other flue gas condensing channel 601 is located at a cleaning position for cleaning treatment and waiting for being damaged by corrosive flue gas. When the flue gas condensation inlets 603 and the flue gas condensation outlets 604 at two ends of one flue gas condensation channel 601 are respectively communicated with the flue gas collecting outlet 302 and the flue gas discharging inlet 501 for condensation, the flue gas condensation inlets 603 and the flue gas condensation outlets 604 at two ends of the other flue gas condensation channel 601 are exposed, so that the cleaning operation is convenient; when two flue gas condensation channels 601 need to replace, can drive ceramic heat exchange condensation rotary drum 6 corotation half circle to realize the position exchange, the flue gas condensation channel 601 that washs the completion carries out the heat exchange, and the flue gas condensation channel 601 that needs to wash later need to change the position when, can drive ceramic heat exchange condensation rotary drum 6 reversal half circle for ceramic heat exchange condensation rotary drum 6 can not unidirectional rotation, thereby avoids the pipeline that is connected on the ceramic heat exchange condensation rotary drum 6 to take place the winding.
In this embodiment, the rotation driving assembly 7 may be designed to drive the gear ring mounted on the ceramic heat exchange condensing drum 6 to rotate by a gear motor, and may be mounted on the ceramic heat exchange condensing drum 6 to rotate with a rotation support so as to ensure sufficient stability of rotation.
Further, the ends of the smoke collecting tube 3 and the smoke discharging tube 5, which are close to each other, are respectively provided with a sealing plate 303, the smoke collecting outlet 302 and the smoke discharging inlet 501 are respectively arranged on the sealing plates 303, and the area of the sealing plates 303 is smaller than the sectional areas of the smoke collecting tube 3 and the smoke discharging tube 5;
wherein, when the flue gas condensation inlet 603 and the flue gas condensation outlet 604 rotate to be opposite to the sealing plate 303, the sealing plate 303 is closely attached to the sealing plate 303, and the sealing plate 303 has a size such that at least three flue gas condensation inlets 603 can be arranged in sequence, and at least three flue gas condensation outlets 604 can be arranged in sequence.
In this embodiment, the smoke collecting tube 3 and the smoke discharging tube 5 are connected with the smoke condensing channel 601, the sealing plate 303 is disposed, the purpose of the sealing plate 303 is to seal the smoke condensing inlets 603 and the smoke condensing outlets 604 at two ends of the smoke condensing channel 601 at any time, so that the smoke collecting outlet 302 of the smoke collecting tube 3 is prevented from flowing into the atmosphere due to the fact that the smoke condensing channel 601 cannot be blocked after being fed into the smoke condensing channel 601, and in order to further improve the smoke sealing effect, a sealing cover can be additionally arranged to avoid smoke leakage. The area of the sealing plate 303 is smaller than the cross-sectional areas of the smoke collecting tube 3 and the smoke discharging tube 5, so that a space can be reserved at the lower side or the upper side of the smoke collecting tube 3 and the smoke discharging tube 5, and two ends of the smoke condensing channel 601 positioned at the cleaning position can be conveniently fed into the spray heads for cleaning.
In this embodiment, when the flue gas condensation channel 601 is located at the condensation position, the flue gas condensation inlet 603 and the flue gas condensation outlet 604 rotate to be capable of tightly attaching to the sealing plate 303 with the sealing plate 303, so as to avoid leakage of flue gas, and thus pollute equipment and workshops. And, the size of the sealing plate 303 is such that at least three flue gas condensation inlets 603 can be arranged in sequence, and at least three flue gas condensation outlets 604 can be arranged in sequence, so that the flue gas condensation inlets 603 and the flue gas condensation outlets 604 are further ensured to be communicated with the smoke collecting outlet 302 and the smoke discharging inlet 501, or blocked by the sealing plate 303, and the leakage of flue gas is avoided.
Further, the number of spiral turns of the smoke condensing channels 601 is 0.8-1, and when the smoke condensing inlets 603 and the smoke condensing outlets 604 at two ends of one smoke condensing channel 601 are respectively communicated with the smoke collecting outlet 302 and the smoke discharging inlet 501, the smoke condensing inlets 603 and the smoke condensing outlets 604 at two ends of the other smoke condensing channel 601 are exposed.
In this embodiment, the number of spiral turns of the flue gas condensation channel 601 is 0.8-1 to ensure that the flue gas condensation channel 601 has a structure with a low middle part and high two ends when in a condensation position, thereby being more beneficial to condensation of flue gas. Meanwhile, when the flue gas condensation inlets 603 and the flue gas condensation outlets 604 at two ends of one flue gas condensation channel 601 are respectively communicated with the flue gas collecting outlet 302 and the flue gas discharging inlet 501, namely, when one flue gas condensation channel 601 is located at a condensation position, the flue gas condensation inlets 603 and the flue gas condensation outlets 604 at two ends of the other flue gas condensation channel 601 are exposed, namely, located at a cleaning position, and when the flue gas condensation channel 601 is ensured to be cleaned regularly, automatic replacement for cleaning can be realized.
Further, as shown in fig. 1 and 3, the ceramic heat exchange condenser is further provided with a condenser flue cleaning device 9, the two sides of the ceramic heat exchange condenser drum 6 are respectively provided with a condenser flue cleaning device 9, and the condenser flue cleaning device 9 comprises
A moving pipe 901, wherein the moving pipe 901 is arranged in a moving way and extends into the flue gas condensation channel 601 after moving,
a high pressure nozzle 902 is provided at the end of the moving pipe 901 for cleaning the inner wall of the flue gas condensing passage 601.
In this embodiment, when the flue gas condensation channel 601 is located in the cleaning position, cleaning is performed through the condensing flue cleaning device 9, and the moving tube 901 of the condensing flue cleaning device 9 has a certain length, so as to conveniently extend into the flue gas condensation channel 601, and also can be designed to be of a spiral structure like the flue gas condensation channel 601, and rotate and send into the flue gas condensation channel 601, so that the inner wall of the flue gas condensation channel 601 is automatically cleaned in time through the high-pressure spray nozzle 902, and the flue gas in the anode roasting furnace can be used for a long time.
Further, as shown in fig. 2, the device further comprises a sliding connection cylinder 10, wherein the sliding connection cylinder 10 is arranged at one end of the branch connection pipe 4 in a sliding manner and is positioned above the smoke recovery port 101, the sliding connection cylinder 10 is close to or far away from the smoke recovery port 101 after sliding, is used for sucking the smoke exhausted by the smoke recovery port 101,
the first linear driving member 11, the first linear driving member 11 drives the sliding connection cylinder 10 to slide.
In this embodiment, the branch connecting pipe 4 needs to be communicated with a plurality of flue gas recovery ports 101 in sequence, and needs to keep tightness, so as to ensure that tightness is known and that the flue gas is avoided from leaking outwards in order to improve the communication efficiency, the end part of the branch connecting pipe 4 is provided with the sliding connecting cylinder 10, when the needs are communicated with the flue gas recovery ports 101, the first linear driving member 11 drives the sliding connecting cylinder 10 to move downwards and cover the flue gas recovery ports 101, so that good quick communication is realized, tightness can be ensured, and the tightness can be further improved after the sealing gasket is increased. The first linear driving member 11 is a hydraulic cylinder.
In this embodiment, the number of branch connection pipes 4 is plural, and even if the roasting of a row of roasting furnaces corresponding to the flue gas recovery port 101 is just completed, that is, when the roasting is just stopped, the branch connection pipes 4 can be kept in communication with each other, so that the residual flue gas in the row of roasting furnaces is well prevented from flowing into the air.
Further, the flue gas condensing channel 601 has a liquid outlet 605, further comprising
A drain hose 12, the drain hose 12 being in communication with the drain port 605,
the heat exchange liquid feed hose 13 and the heat exchange liquid discharge hose 14 are respectively connected to both ends of the heat exchange liquid passage 602.
In this embodiment, the drain port 605 of the flue gas condensation channel 601 is used for draining condensate in the flue gas condensation channel 601, and the drain hose 12 is connected to send to a proper position. The heat exchange liquid feeding hose 13 and the heat exchange liquid discharging hose 14 are respectively communicated with two ends of the heat exchange liquid channel 602, so as to realize circulation and transportation of the heat exchange liquid, realize temperature rise of the heat exchange liquid, and reasonably utilize latent heat in the flue gas.
The purpose of the drain hose 12, the heat exchange liquid feed hose 13 and the heat exchange liquid discharge hose 14 being hoses is to ensure proper communication of the pipes also when the ceramic heat exchange condensing drum 6 is moved or rotated.
Further, as shown in fig. 5-7, the device further comprises a sealing component 8, wherein the sealing component 8 is arranged between the smoke collecting tube 3, the smoke discharging tube 5 and the ceramic heat exchange condensing rotary drum 6, and the sealing component 8 comprises
A first annular seal 801 and a second annular seal 802, the first annular seal 801 and the second annular seal 802 being slidably disposed on the ceramic heat exchange condensing drum 6 in an axial direction of the ceramic heat exchange condensing drum 6, an annular region 803 being formed between the first annular seal 801 and the second annular seal 802,
a first elastic member 804, the first elastic member 804 being arranged on the ceramic heat exchange condensing drum 6, providing a force with which the first annular sealing member 801 and the second annular sealing member 802 are against the closing plate 303, the flue gas condensing inlet 603 and the flue gas condensing outlet 604 being both located in the annular region 803.
In this embodiment, in order to further ensure that the flue gas in the smoke collecting tube 3 is sent to the flue gas condensation channel 601 and cannot leak, the ceramic heat exchange condensation drum 6 is provided with the first annular sealing element 801 and the second annular sealing element 802, and under the action of the first elastic element 804, the first annular sealing element 801 and the second annular sealing element 802 can approach and tightly press the sealing plate 303 of the smoke collecting tube 3 and the smoke discharging tube 5 at any time, so that the flue gas tightness is well improved, and the first annular sealing element 801 and the second annular sealing element 802 are annular, so that even if the ceramic heat exchange condensation drum 6 rotates, the tightness cannot be influenced. The first elastic member 804 may be a spring.
Further, the closing plate 303 has a first arc-shaped groove 304 and a second arc-shaped groove 305, the first annular seal 801 protrudes into the first arc-shaped groove 304, and the second annular seal 802 protrudes into the second arc-shaped groove 305.
In this embodiment, the first annular sealing member 801 extends into the first arc-shaped groove 304, and the second annular sealing member 802 extends into the second arc-shaped groove 305, so that the tightness is further improved, and even if the ceramic heat exchange condensation drum 6 needs to rotate, the sealing is not affected, and the low-temperature condensation waste heat absorption is ensured.
Further, the seal assembly 8 further comprises a first bar seal 805 and a second bar seal 806, the first bar seal 805 and the second bar seal 806 being both slidably disposed on the closing plate 303 and being slid closer to or further from the ceramic heat exchange condensing drum 6, the first bar seal 805 and the second bar seal 806 being both located within the annular region 803,
the first strip seal 805 and the second strip seal 806 are two sets, one set on either side of the smoke evacuation outlet 302, the other set on either side of the smoke evacuation inlet 501,
a second elastic member 807, the second elastic member 807 being disposed on the ceramic heat exchange condenser drum 6, provides a force with which the first strip seal 805 and the second strip seal 806 are abutted against the ceramic heat exchange condenser drum 6.
In this embodiment, the flue gas condensation inlet 603 and the flue gas condensation outlet 604 are both located in the annular area 803, the smoke collecting outlet 302 and the smoke discharging inlet 501 are both located in the annular area 803, two ends in the radial direction are sealed by the first annular sealing element 801 and the second annular sealing element 802, and the first strip sealing element 805 and the second strip sealing element 806 are further arranged in the axial direction, so that the smoke collecting outlet 302 and the smoke discharging inlet 501 can be sealed in four directions, and air leakage is avoided. The second elastic member 807 acts on the first strip-shaped sealing member 805 and the second strip-shaped sealing member 806 to exert a tightening effect, and a spring is selected.
Further, the seal assembly 8 further comprises a third strip seal 808 and a fourth strip seal 809, the third strip seal 808 and the fourth strip seal 809 being located at two end positions of the first arc-shaped groove 304, respectively, and the third strip seal 808 and the fourth strip seal 809 being located in the annular region 803,
a third spring 810, the third spring 810 being disposed on the ceramic heat exchange condensing drum 6, provides a force with which the third strip seal 808 and the fourth strip seal 809 are in close proximity to the ceramic heat exchange condensing drum 6.
In this embodiment, considering that when the flue gas condensation channel 601 is turned from the condensation position to the cleaning position, the possibility of leakage exists when the flue gas collecting outlet 302 and the flue gas inlet 501 are dislocated with the flue gas condensation inlet 603 and the flue gas condensation outlet 604, the third strip-shaped sealing member 808 and the fourth strip-shaped sealing member 809 are arranged at the two ends of the first arc-shaped groove 304, so that the flue gas leakage does not exist when the flue gas condensation channel 601 is turned from the condensation position to the cleaning position. Wherein, the third elastic member 810 tightly pushes up the third strip-shaped sealing member 808 and the fourth strip-shaped sealing member 809, and a spring is selected.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (8)
1. The low-temperature waste heat recovery system of the prebaked anode roasting furnace is used for recovering the low-temperature waste heat of the anode roasting furnace (1), and the anode roasting furnace (1) is provided with a smoke recovery port (101) and is characterized by comprising
A cooling moving frame (2), wherein the cooling moving frame (2) is movably arranged above the flue gas recovery port (101),
a smoke collecting tube (3), wherein the smoke collecting tube (3) is arranged on the cooling movable frame (2) to move along, one end of the smoke collecting tube (3) is provided with a plurality of smoke collecting inlet ports (301), the other end is provided with a smoke collecting outlet port (302),
branch connecting pipes (4), wherein the number of the branch connecting pipes (4) is a plurality, each branch connecting pipe (4) is communicated with one smoke collecting inlet (301),
a smoke discharging tube (5), the smoke discharging tube (5) is arranged at one side of the smoke collecting tube (3), a smoke discharging inlet (501) is arranged at one side close to the smoke collecting tube (3),
ceramic heat exchange condensation rotary drum (6), ceramic heat exchange condensation rotary drum (6) rotate set up collection chimney (3) with between chimney (5), have flue gas condensation passageway (601) and heat exchange liquid passageway (602), flue gas condensation passageway (601) are two and arrange double helix structure, the both ends of flue gas condensation passageway (601) are flue gas condensation import (603) and flue gas condensation export (604) respectively, heat exchange liquid passageway (602) spiral encircle flue gas condensation passageway (601) spiral sets up, flue gas condensation import (603) with flue gas condensation export (604) are used for respectively with collection cigarette outlet (302) flue gas inlet (501) intercommunication,
a rotation driving assembly (7), wherein the rotation driving assembly (7) drives the ceramic heat exchange condensing rotary drum (6) to rotate;
the number of spiral turns of the flue gas condensation channel (601) is 0.8-1, and when the flue gas condensation inlets (603) and the flue gas condensation outlets (604) at two ends of one flue gas condensation channel (601) are respectively communicated with the smoke collecting outlet (302) and the smoke discharging inlet (501), the flue gas condensation inlets (603) and the flue gas condensation outlets (604) at two ends of the other flue gas condensation channel (601) are exposed;
still include condensing flue belt cleaning device (9), the both sides of ceramic heat exchange condensing rotary drum (6) all are provided with condensing flue belt cleaning device (9), condensing flue belt cleaning device (9) include
A moving pipe (901), wherein the moving pipe (901) is arranged in a moving way and extends into the flue gas condensation channel (601) after moving,
the high-pressure spray head (902) is arranged at the end part of the moving pipe (901) and is used for cleaning the inner wall of the flue gas condensation channel (601).
2. The low-temperature waste heat recovery system of the prebaked anode roasting furnace according to claim 1, wherein one end, close to each other, of the smoke collecting cylinder (3) and the smoke discharging cylinder (5) is provided with a sealing plate (303), the smoke collecting outlet (302) and the smoke discharging inlet (501) are arranged on the sealing plate (303), and the area of the sealing plate (303) is smaller than the cross-sectional areas of the smoke collecting cylinder (3) and the smoke discharging cylinder (5);
when the flue gas condensation inlet (603) and the flue gas condensation outlet (604) rotate to be opposite to the sealing plate (303), the sealing plate (303) is tightly attached to the sealing plate (303), and the sealing plate (303) is at least three flue gas condensation inlets (603) and at least three flue gas condensation outlets (604) can be sequentially arranged.
3. The low-temperature waste heat recovery system of the prebaked anode baking furnace according to claim 1, wherein,
the prebaked anode baking furnace low-temperature waste heat recovery system according to claim 1, further comprising
The sliding connecting cylinder (10), the sliding connecting cylinder (10) is arranged at one end of the branch connecting pipe (4) in a sliding way and is positioned above the smoke recovery port (101), the sliding connecting cylinder (10) is close to or far away from the smoke recovery port (101) after sliding, is used for sucking the smoke exhausted by the smoke recovery port (101),
-a first linear drive (11), said first linear drive (11) driving the sliding connection cylinder (10) to slide.
4. The low-temperature waste heat recovery system of the prebaked anode baking furnace according to claim 1, wherein the flue gas condensing channel (601) is provided with a liquid outlet (605),
and also comprises
A drain hose (12), wherein the drain hose (12) is communicated with the drain port (605),
a heat exchange liquid feeding hose (13) and a heat exchange liquid discharging hose (14), the heat exchange liquid feeding hose (13) and the heat exchange liquid discharging hose (14) are respectively communicated with both ends of the heat exchange liquid passage (602).
5. The low-temperature waste heat recovery system of a prebaked anode baking furnace according to claim 2, further comprising a sealing assembly (8), wherein the sealing assembly (8) is arranged between the fume collecting tube (3), the fume discharging tube (5) and the ceramic heat exchanging condensing drum (6), and the sealing assembly (8) comprises
A first annular seal (801) and a second annular seal (802), wherein the first annular seal (801) and the second annular seal (802) are arranged on the ceramic heat exchange condensation drum (6) along the axial direction of the ceramic heat exchange condensation drum (6) in a sliding way, an annular area (803) is formed between the first annular seal (801) and the second annular seal (802),
-a first elastic member (804), said first elastic member (804) being arranged on said ceramic heat exchange condensing drum (6), providing a force with which said first annular seal (801) and said second annular seal (802) are in close contact with said closing plate (303), said flue gas condensing inlet (603) and said flue gas condensing outlet (604) being both located in said annular region (803).
6. The prebaked anode furnace low-temperature waste heat recovery system according to claim 5, wherein the closing plate (303) has a first arc-shaped groove (304) and a second arc-shaped groove (305), the first annular seal (801) extending into the first arc-shaped groove (304), and the second annular seal (802) extending into the second arc-shaped groove (305).
7. The low-temperature waste heat recovery system of a prebaked anode baking furnace according to claim 6, wherein the sealing assembly (8) further comprises
A first strip seal (805) and a second strip seal (806), the first strip seal (805) and the second strip seal (806) being both slidingly disposed on the closing plate (303) and being slid closer to or farther from the ceramic heat exchange condensing drum (6), the first strip seal (805) and the second strip seal (806) both being located within the annular region (803),
the first strip-shaped sealing element (805) and the second strip-shaped sealing element (806) are two groups, one group is positioned at two sides of the smoke collecting outlet (302), the other group is positioned at two sides of the smoke discharging inlet (501),
-a second elastic member (807), said second elastic member (807) being arranged on said ceramic heat exchange condenser drum (6) providing a force with which said first strip seal (805) and said second strip seal (806) are in close proximity to said ceramic heat exchange condenser drum (6).
8. The low-temperature waste heat recovery system of a prebaked anode baking furnace according to claim 7, wherein the sealing assembly (8) further comprises
A third strip seal (808) and a fourth strip seal (809), the third strip seal (808) and the fourth strip seal (809) being located at two end positions of the first arc-shaped groove (304), respectively, and the third strip seal (808) and the fourth strip seal (809) being located within the annular region (803),
and a third elastic element (810), wherein the third elastic element (810) is arranged on the ceramic heat exchange condensation rotary drum (6) and provides force for the third strip-shaped sealing element (808) and the fourth strip-shaped sealing element (809) to cling to the ceramic heat exchange condensation rotary drum (6).
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110062015A (en) * | 2009-12-02 | 2011-06-10 | 현대자동차주식회사 | Exhaust heat recovery device |
| CN210740378U (en) * | 2019-10-24 | 2020-06-12 | 江苏恒峰精细化学股份有限公司 | Energy-saving device for recycling flue gas waste heat |
| CN210921792U (en) * | 2019-10-12 | 2020-07-03 | 江苏凯通锅炉压力容器有限公司 | Condensing gas-fired hot water boiler |
| CN212205696U (en) * | 2020-04-24 | 2020-12-22 | 苏州顺惠有色金属制品有限公司 | Low-temperature flue gas waste heat recovery and purification system of roasting furnace |
| CN112325674A (en) * | 2020-11-26 | 2021-02-05 | 浙江广涛卫厨有限公司 | Surrounding type heat exchanger |
| CN112344365A (en) * | 2020-10-09 | 2021-02-09 | 周福明 | Boiler combustion furnace flue gas environmental protection and energy saving recovery unit |
-
2023
- 2023-04-06 CN CN202310357460.9A patent/CN116045685B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110062015A (en) * | 2009-12-02 | 2011-06-10 | 현대자동차주식회사 | Exhaust heat recovery device |
| CN210921792U (en) * | 2019-10-12 | 2020-07-03 | 江苏凯通锅炉压力容器有限公司 | Condensing gas-fired hot water boiler |
| CN210740378U (en) * | 2019-10-24 | 2020-06-12 | 江苏恒峰精细化学股份有限公司 | Energy-saving device for recycling flue gas waste heat |
| CN212205696U (en) * | 2020-04-24 | 2020-12-22 | 苏州顺惠有色金属制品有限公司 | Low-temperature flue gas waste heat recovery and purification system of roasting furnace |
| CN112344365A (en) * | 2020-10-09 | 2021-02-09 | 周福明 | Boiler combustion furnace flue gas environmental protection and energy saving recovery unit |
| CN112325674A (en) * | 2020-11-26 | 2021-02-05 | 浙江广涛卫厨有限公司 | Surrounding type heat exchanger |
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| CN116045685A (en) | 2023-05-02 |
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