Continuous graphitization furnace flue gas heat energy recovery device capable of continuously collecting CS2

Abstract

The invention relates to the field of flue gas heat energy recovery, in particular to a continuous graphitization furnace flue gas heat energy recovery device capable of continuously collecting CS2, which comprises a main flue gas pipe and an auxiliary flue gas pipe connected to the main flue gas pipe, the main flue gas pipe is internally provided with heat exchange frames which are symmetrical up and down, the heat exchange frames are provided with a water inlet pipe and a water outlet pipe, and the auxiliary flue gas pipe is internally provided with two liquid storage cylinders. A cavity for storing solutions is formed between the outer wall of the auxiliary smoke pipe and the inner wall of the auxiliary smoke pipe, a first liquid injection pipe is arranged at the air inlet end of the auxiliary smoke pipe, and water pumps which are vertically symmetrical are installed on the outer side of the auxiliary smoke pipe. According to the invention, through the two-stage heat exchange design, heat energy in the flue gas is fully recovered, the energy utilization efficiency is improved, harmful substances in the flue gas are ensured to be fully removed through four absorption processes, the environment-friendly emission standard is reached, the mixed liquid is recycled for multiple times during the period, the resource waste is reduced, and the operation cost is reduced.

Description

Technical Field

[0001] The invention relates to the field of flue gas heat energy recovery, and in particular to a continuous graphitization furnace flue gas heat energy recovery device capable of sustainably collecting CS2. Background Art

[0002] A continuous graphitization furnace is a device used for high-temperature treatment of carbon-based materials (such as petroleum coke, asphalt coke, etc.). It transforms its crystal structure into graphitized materials through continuous heating (usually above 2800°C). It is widely used in the production of high-performance materials such as lithium battery negative electrode materials, graphite electrodes, and nuclear reactor moderators. During the graphitization process, a large amount of high-temperature flue gas is generated. These flue gases not only contain a large amount of heat energy, but may also contain harmful gases such as carbon disulfide (CS2), sulfur dioxide (SO2) and nitrogen oxides (NO X )wait.

[0003] Traditional flue gas treatment methods usually use a combination of heat recovery and flue gas purification to reduce energy waste and environmental pollution. Flue gas is treated by cooling, dust removal and chemical absorption, in which alkaline solutions (such as sodium carbonate or calcium hydroxide solutions) are used to absorb acidic gases (including CS2) in flue gas to form soluble salts, thereby reducing environmental pollution and improving resource utilization efficiency. However, the existing technology has the following problems: a single spray of alkaline solution often cannot completely remove acidic gases, and multiple spraying is required to ensure the absorption effect; frequent spraying will lead to the consumption of a large amount of alkaline solution, increasing operating costs; the generated mixed waste liquid (containing alkaline and acidic substances) needs to be further treated to meet environmental emission standards or recover valuable components. As the amount of waste liquid increases, the cost and complexity of subsequent treatment will also increase significantly.

[0004] Based on the above situation, the present invention proposes a continuous graphitization furnace flue gas heat energy recovery device that can continuously collect CS2. Summary of the invention

[0005] In order to overcome the shortcomings of low absorption efficiency, waste of resources and complex waste liquid treatment in the prior art, the present invention provides a continuous graphitization furnace flue gas heat energy recovery device for sustainable collection of CS2.

[0006] A continuous graphitization furnace flue gas heat energy recovery device capable of continuously collecting CS2 comprises a main smoke pipe and a secondary smoke pipe connected thereto, wherein a vertically symmetrical heat exchange frame is arranged in the main smoke pipe, on which a water inlet pipe and a water outlet pipe are arranged, two liquid storage cylinders are arranged inside the secondary smoke pipe, and a cavity for storing solution is formed between the outer wall of the liquid storage cylinders and the inner wall of the secondary smoke pipe, a first liquid injection pipe is arranged at the air inlet end of the secondary smoke pipe, and a vertically symmetrical water pump is installed on the outer side of the secondary smoke pipe, wherein the suction port thereof is located in an adjacent cavity, and the liquid discharge port thereof is connected to a second liquid injection pipe, and nozzles are installed at the liquid outlets of the first liquid injection pipe and the second liquid injection pipe.

[0007] Optionally, both the top and bottom sides of the liquid storage cylinder are opened, and the top port thereof is conical.

[0008] Optionally, a thick pipe section for containing mixed waste liquid is provided at the bottom of the auxiliary smoke pipe near the exhaust pipe, and a liquid guide groove is provided at the auxiliary smoke pipe near the thick pipe section.

[0009] Optionally, an electrochemical sensor is installed in the thick pipe section near the exhaust pipe.

[0010] Optionally, the outer walls of the two liquid storage cylinders are fixedly connected with a slide cylinder, and a magnetic float frame is slidably connected inside the slide cylinder. The third liquid injection tube is connected to the first liquid injection tube, and its upper and lower symmetrical liquid outlets are located in the cavity between the liquid storage cylinder and the inner wall of the auxiliary smoke pipe. An electromagnet is provided on the inner side of the top wall of the slide cylinder, and the position of the magnetic float frame is controlled by powering on or off to optimize the solution storage and discharge process.

[0011] Optionally, a slide is provided in the thick tube section of the auxiliary smoke pipe, and symmetrically distributed second springs are connected between the slide and the auxiliary smoke pipe, and the symmetrically distributed second springs are all wound around the slide. A large circular hole is opened on the bottom wall of the slide, and a baffle for controlling the opening and closing of the large circular hole is slidably connected to the slide. The baffle is arranged in a dome shape, and symmetrically distributed first springs are connected between the baffle and the slide, and the symmetrically distributed first springs are all wound around the baffle.

[0012] Optionally, an electromagnetic frame is provided in the exhaust pipe of the auxiliary smoke pipe, and a sliding magnetic block is slidably connected to the electromagnetic frame. Both the electromagnetic frame and the sliding magnetic block are provided with evenly distributed fan-shaped air holes, and the fan-shaped air holes of the two are staggered with each other. A tension spring is connected between the sliding magnetic block and the electromagnetic frame, and the tension spring is wound around the electromagnetic frame. The sliding magnetic block is fixedly connected to a magnetic push frame, and the magnetic push frame passes through the sliding frame. A card frame is fixedly connected to the blocking frame, and a card block is fixedly connected to the side of the magnetic push frame close to the card frame.

[0013] Optionally, a snap-in opening is provided on the card frame for achieving precise snap connection with a card block on the magnetic push frame.

[0014] Optionally, the electrochemical sensor is electrically connected to the electromagnet and the electromagnetic frame through a control module.

[0015] Optionally, a rotating rack is provided in each nozzle.

[0016] The beneficial effects of the present invention are as follows: the present invention firstly uses a two-stage heat exchange design to fully recover the heat energy in the flue gas and improve the energy utilization efficiency, and then uses a four-pass absorption process to ensure that the harmful substances in the flue gas are fully removed and meet the environmental protection emission standards. During this period, the mixed liquid is recycled many times to reduce resource waste and reduce operating costs.

[0017] The present invention ensures that the smoke and the mixed liquid are fully in contact with each other through the linkage control of the electrochemical sensor, the magnetic floating frame and the electromagnetic frame, thereby improving the removal effect of harmful substances.

[0018] The present invention drives the nozzle to rotate by the rotating frame, converts the solution into a scattered water curtain, covers a larger area, thereby increasing the contact area with the smoke, speeding up the absorption speed of harmful substances, and improving the absorption efficiency of harmful substances. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a three-dimensional structural cross-sectional view of the main smoke pipe, auxiliary smoke pipe, heat exchange frame and other components of the present invention.

[0021] Figure 3 It is a three-dimensional structural cross-sectional view of the components such as the liquid storage cylinder, the slide cylinder and the magnetic floating frame of the present invention.

[0022] Figure 4 It is a three-dimensional structural cross-sectional view of the slide cylinder, magnetic floating frame, electromagnet and other components of the present invention.

[0023] Figure 5 It is a three-dimensional structural cross-sectional view of the components such as the slide frame, the retaining frame and the first spring of the present invention.

[0024] Figure 6 This is a separation diagram of the slide and the retaining frame of the present invention.

[0025] Figure 7 It is a three-dimensional structural cross-sectional view of the electromagnetic frame, sliding magnetic block, tension spring and other components of the present invention.

[0026] Figure 8 It is a three-dimensional structural cross-sectional view of components such as the magnetic push frame, the main smoke pipe nozzle and the bracket block of the present invention.

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the card rack and the card block of the present invention.

[0028] Fig.10 It is a schematic diagram of the three-dimensional structure of the first liquid injection pipe, the nozzle and the rotating frame of the present invention.

[0029] Markings in the accompanying drawings: 1_main smoke pipe, 2_auxiliary smoke pipe, 3_heat exchange frame, 4_first liquid injection pipe, 5_nozzle, 6_liquid storage cylinder, 7_water pump, 8_second liquid injection pipe, 801_liquid guide groove, 9_electrochemical sensor, 10_slide, 11_magnetic floating frame, 12_third liquid injection pipe, 13_electromagnet, 14_slide, 15_block frame, 16_first spring, 17_second spring, 18_electromagnetic frame, 19_sliding magnetic block, 20_tension spring, 21_magnetic push frame, 22_card frame, 23_card block, 24_rotating frame. DETAILED DESCRIPTION

[0030] The following descriptions are merely preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention.

[0031] Example 1: A continuous graphitization furnace flue gas heat recovery device for continuously collecting CS2, such as Figure 1-Figure 3 As shown, it includes a main smoke pipe 1 and a secondary smoke pipe 2 connected to the upper end thereof. Two heat exchange racks 3 are symmetrically arranged in the main smoke pipe 1 for recovering the heat energy of the flue gas, and a water inlet pipe and a water outlet pipe are arranged on the main smoke pipe 1. Two liquid storage cylinders 6 are arranged vertically inside the secondary smoke pipe 2, and a cavity for storing the solution is formed between the outer wall of the liquid storage cylinder 6 and the inner wall of the secondary smoke pipe 2. Both the top and bottom sides of the liquid storage cylinder 6 are open, and the top port is conical. A first liquid injection pipe 4 is arranged at the air inlet end of the secondary smoke pipe 2 for spraying an alkaline solution to absorb harmful substances in the flue gas.

[0032] A water pump 7 symmetrically arranged in an upper and lower direction is installed on the outer side of the auxiliary smoke pipe 2, and its suction port is located in an adjacent cavity, and its discharge port is connected to a second injection pipe 8 for extracting the mixed liquid in the cavity. Nozzles 5 are installed at the liquid outlets of the first injection pipe 4 and the second injection pipe 8 for converting the solution into a scattered water curtain. A thick pipe section for containing mixed waste liquid is provided at the bottom of the auxiliary smoke pipe near the exhaust pipe, and a liquid guide groove 801 is provided at the auxiliary smoke pipe 2 near the thick pipe section, and an electrochemical sensor 9 is installed at the thick pipe section near the exhaust pipe for detecting the concentration of harmful substances in the flue gas.

[0033] like Figure 5-Figure 7 As shown, a slide 14 is provided in the thick tube section of the auxiliary smoke pipe 2, and symmetrically distributed second springs 17 are connected between the slide 14 and the auxiliary smoke pipe 2, and the symmetrically distributed second springs 17 are all wound around the slide 14 to form an elastic support structure. A large circular hole is opened on the bottom wall of the slide 14, and a retaining frame 15 for controlling the opening and closing of the large circular hole is slidably connected to the slide 14, and the retaining frame 15 is arranged in a dome shape. Symmetrically distributed first springs 16 are connected between the retaining frame 15 and the slide 14, and the symmetrically distributed first springs 16 are all wound around the retaining frame 15.

[0034] When in use, the main smoke pipe 1 is first installed on the air outlet of the continuous graphitization furnace to ensure that the smoke can smoothly enter the interior of the device, and the water inlet pipe of the heat exchange frame 3 is connected to the external water pipe, and the water outlet pipe is connected to the next-level processing equipment (such as a cooling tower or a heat exchanger) to form a closed-loop cooling system, and the alkaline solution output pipe is firmly fixed to the liquid inlet of the first injection pipe 4 using appropriate clamps or connectors to ensure the stability and sealing of the solution delivery.

[0035] When the flue gas enters from the bottom of the main smoke pipe 1, it first passes through the lower heat exchange rack 3, which absorbs a large amount of heat in the flue gas to achieve primary heat exchange and significantly reduce the flue gas temperature. The flue gas that has passed the primary heat exchange continues to rise and enters the upper heat exchange rack 3, which further absorbs the residual heat in the flue gas to complete the secondary heat exchange and ensure that the heat energy in the flue gas is fully recovered.

[0036] As the flue gas travels, the cooled flue gas will enter the auxiliary smoke pipe 2 to prepare for the harmful substance absorption treatment. The alkaline solution in the first injection pipe 4 is sprayed out in a cone shape through the nozzle 5 to fully contact the flue gas. The alkaline solution absorbs the harmful substances in the flue gas (such as sulfur dioxide, nitrogen oxides, etc.) to form soluble salts. The absorbed mixed liquid flows into the cavity along the conical surface at the top of the liquid storage cylinder 6 to complete the first absorption. The upper water pump 7 draws out the first mixed liquid and sprays it again through the upper second injection pipe 8 and its nozzle 5. The sprayed mixed liquid further absorbs the harmful substances in the flue gas to form a second mixed liquid. The second mixed liquid The liquid continues to flow into the lower cavity to complete the second absorption. The lower water pump 7 extracts the second mixed liquid and sprays it again through the nozzle 5. The sprayed mixed liquid continues to absorb the harmful substances remaining in the flue gas to form a third mixed liquid. The third mixed liquid flows along the liquid guide groove 801 to the thick pipe section at the bottom of the auxiliary smoke pipe 2 to complete the third absorption. Since the liquid guide groove 801 is higher than the inlet of the exhaust pipe of the auxiliary smoke pipe 2, the third mixed liquid flows downward along the liquid guide groove 801 to form a water curtain. The smoke that has been absorbed three times passes through the water curtain, and the water curtain further absorbs the harmful substances remaining in the smoke. Finally, the treated smoke is discharged from the exhaust pipe outlet to complete the fourth absorption.

[0037] In summary, the two-stage heat exchange design is used to fully recover the heat energy in the flue gas and improve the energy utilization efficiency. Then, the four-pass absorption process is used to ensure that the harmful substances in the flue gas are fully removed to meet the environmental emission standards. During this period, the mixed liquid is recycled many times to reduce resource waste and lower operating costs.

[0038] As mentioned above, the third mixed liquid flows into the thick tube section at the bottom of the auxiliary smoke pipe 2, and flows into the tray composed of the slide 14 and the baffle 15. Under the gravity of the third mixed liquid, the tray composed of the slide 14 and the baffle 15 is pressed downward, and the second spring 17 is slightly deformed. When the third mixed liquid in the tray reaches a certain amount, the mixed liquid presses the baffle 15 downward, causing the baffle 15 to slide downward relative to the slide 14, and the first spring 16 is deformed, and the baffle 15 is separated from the slide 14. The third mixed liquid flows from the gap between the baffle 15 and the slide 14 to the lower part of the thick tube section. Since the baffle 15 is dome-shaped, the third mixed liquid in the tray can quickly flow to the lower part of the thick tube section.

[0039] When the amount of the third mixed liquid in the tray is reduced to a certain amount, under the elastic action of the first spring 16, the baffle 15 quickly moves upwards and fits with the slide 14 to re-form the tray. With the continuous inflow of the third mixed liquid, a certain amount of mixed liquid accumulates in the tray again until the accumulated amount exceeds the elastic force of the first spring 16, and the baffle 15 slides downward again to separate from the slide 14 and discharge part of the mixed liquid. Through the above-mentioned cycle process, the tray composed of the slide 14 and the baffle 15 always accumulates a certain amount of mixed liquid. When the flue gas enters the exhaust pipe from the thick pipe section, the flue gas will contact the mixed liquid accumulated on the tray, and the mixed liquid will further absorb the harmful substances in the flue gas to complete the last purification, thereby improving the utilization rate of the alkaline solution and the removal effect of harmful substances in the flue gas.

[0040] Embodiment 2: Based on embodiment 1, Figure 3 and Figure 4 As shown, the outer walls of the two liquid storage cylinders 6 are fixedly connected with slide cylinders 10, and the two slide cylinders 10 are slidably connected with magnetic floating frames 11. The first liquid injection tube 4 is connected to a third liquid injection tube 12, and its upper and lower symmetrical liquid outlets are located in the cavity between the liquid storage cylinder 6 and the inner wall of the auxiliary smoke pipe 2, which are used to evenly distribute the alkaline solution and improve the absorption efficiency of harmful substances. An electromagnet 13 is provided on the inner side of the top wall of each slide cylinder 10, and the position of the magnetic floating frame 11 is controlled by powering on or off to optimize the solution storage and discharge process.

[0041] like Figure 7-Figure 9 As shown, an electromagnetic frame 18 is provided in the exhaust pipe of the auxiliary smoke pipe 2, and the lower part of the electromagnetic frame 18 is slidably connected to a sliding magnetic block 19. Both the electromagnetic frame 18 and the sliding magnetic block 19 are provided with evenly distributed fan-shaped air holes, and the fan-shaped air holes of the two are staggered with each other. A tension spring 20 is connected between the sliding magnetic block 19 and the electromagnetic frame 18, and the tension spring 20 is wound around the electromagnetic frame 18. The sliding magnetic block 19 is fixedly connected to a magnetic push frame 21, and the magnetic push frame 21 passes through the slide frame 14. A clamping frame 22 is fixedly connected to the baffle frame 15, and a clamping block 23 is fixedly connected to the side of the magnetic push frame 21 close to the clamping frame 22. A clamping port is provided on the clamping frame 22 for achieving precise clamping with the clamping block 23 on the magnetic push frame 21. The electrochemical sensor 9 is electrically connected to the electromagnet 13 and the electromagnetic frame 18 through a control module.

[0042] When there is enough solution in the cavity, the magnetic floating frame 11 moves upward under the action of buoyancy, sealing the liquid outlet of the third injection pipe 12, and the external alkaline solution can only flow in through the first injection pipe 4. When the electrochemical sensor 9 detects that the flue gas in the exhaust pipe still contains harmful substances, the electromagnet 13 and the electromagnetic frame 18 are energized, and the electromagnet 13 will generate magnetism, and use magnetic force to repel the magnetic floating frame 11 to move it downward. The liquid outlet of the third injection pipe 12 is opened, and fresh alkaline solution from the outside is replenished into the cavity. The replenished alkaline solution makes the alkaline concentration of the mixed solution pumped out by the water pump 7 higher, and the strength of the mixed solution sprayed out by the second injection pipe 8 to absorb harmful substances is enhanced, thereby improving the purification efficiency.

[0043] When the electromagnetic frame 18 is energized, the sliding magnetic block 19 is attracted to move it upward, the tension spring 20 is deformed, the fan-shaped air holes of the electromagnetic frame 18 and the sliding magnetic block 19 are staggered, the exhaust pipe of the auxiliary smoke pipe 2 is sealed, and the smoke cannot be discharged temporarily. The sliding magnetic block 19 drives the magnetic push frame 21 and the clamping block 23 to move upward, the clamping block 23 is clamped into the clamping frame 22, and the magnetic push frame 21 is buckled with the retaining frame 15, so that the slide frame 14 and the retaining frame 15 are integrated into a whole, and more mixed liquid can be accumulated in the tray. The smoke accumulates in the thick pipe section, and the contact time with the mixed liquid on the tray is prolonged, further absorbing trace harmful substances in the smoke.

[0044] When the electrochemical sensor 9 cannot detect harmful substances, the control electromagnet 13 and the electromagnetic frame 18 are powered off, and the magnetic floating frame 11 moves up under the action of buoyancy to seal the liquid outlet of the third injection tube 12. The electromagnetic frame 18 no longer attracts the sliding magnetic block 19. Under the action of the tension spring 20, the sliding magnetic block 19 moves down and resets, the exhaust pipe is unsealed, and the smoke can be discharged from the exhaust pipe. At the same time, the sliding magnetic block 19 drives the magnetic push frame 21 and the block 23 to move down and reset. The block 23 is separated from the card frame 22, and the retaining frame 15 slides down relative to the slide frame 14. The mixed liquid in the tray flows out of the gap, and the retaining frame 15 moves up and resets under the elastic action of the first spring 16. In summary, through the linkage control of the electrochemical sensor 9, the magnetic floating frame 11 and the electromagnetic frame 18, it is ensured that the smoke and the mixed liquid are fully in contact, and the removal effect of harmful substances is improved.

[0045] like Fig.10 As shown, the three nozzles 5 are each provided with a rotating frame 24, which can realize multi-angle spraying of the nozzle 5 and optimize the distribution effect of the liquid or gas.

[0046] When the first injection pipe 4 and the second injection pipe 8 spray the solution through the nozzle 5, the solution will impact the fan blades (similar to a turbine) inside the rotating frame 24, converting the linear kinetic energy of the water flow into the rotational mechanical energy of the fan blades, driving the rotating frame 24 to rotate. The rotation of the rotating frame 24 directly drives the nozzle 5 to rotate synchronously, so that the rotating nozzle 5 can convert the solution into a scattered water curtain, covering a larger area, thereby increasing the contact area with the flue gas. The contact area between the scattered water curtain and the flue gas is significantly increased, thereby accelerating the absorption rate of harmful substances and improving the absorption efficiency of harmful substances.

[0047] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A continuous graphitization furnace flue gas heat recovery device capable of continuously collecting CS2, comprising a main flue gas pipe (1) and a secondary flue gas pipe (2) connected thereto, characterized in that: A vertically symmetrical heat exchange frame (3) is provided in the main smoke pipe (1), on which a water inlet pipe and a water outlet pipe are provided. Two liquid storage cylinders (6) are provided inside the auxiliary smoke pipe (2), and a cavity for storing solution is formed between the outer wall of the liquid storage cylinder and the inner wall of the auxiliary smoke pipe (2). A first liquid injection pipe (4) is provided at the air inlet end of the auxiliary smoke pipe (2). A vertically symmetrical water pump (7) is installed on the outside of the auxiliary smoke pipe (2), and its suction port is located in an adjacent cavity. Its discharge port is connected to a second liquid injection pipe (8). A nozzle (5) is installed at the liquid outlet of the first liquid injection pipe (4) and the second liquid injection pipe (8).

2. A continuous graphitization furnace flue gas heat recovery device for sustainable collection of CS2 as claimed in claim 1, characterized in that: Both the top and bottom sides of the liquid storage cylinder (6) are open, and the top port thereof is conical.

3. A continuous graphitization furnace flue gas heat recovery device for sustainable collection of CS2 as claimed in claim 2, characterized in that: A thick pipe section for containing mixed waste liquid is provided at the bottom of the auxiliary smoke pipe (2) near the exhaust pipe, and a liquid guide groove (801) is provided at the auxiliary smoke pipe (2) near the thick pipe section.

4. A continuous graphitization furnace flue gas heat recovery device for continuously collecting CS2 as claimed in claim 3, characterized in that: An electrochemical sensor (9) is installed on the thick pipe section near the exhaust pipe.

5. A continuous graphitization furnace flue gas heat recovery device for continuously collecting CS2 as claimed in claim 4, characterized in that: The outer walls of the two liquid storage cylinders (6) are fixedly connected with a slide cylinder (10), and a magnetic floating frame (11) is slidably connected inside the slide cylinder (10). The first liquid injection tube (4) is connected to a third liquid injection tube (12), and its upper and lower symmetrical liquid outlets are located in the cavity between the liquid storage cylinder (6) and the inner wall of the auxiliary smoke pipe (2). An electromagnet (13) is provided on the inner side of the top wall of the slide cylinder (10).

6. A continuous graphitization furnace flue gas heat recovery device for sustainable collection of CS2 as claimed in claim 5, characterized in that: A slide (14) is provided in the thick tube section of the auxiliary smoke pipe (2); symmetrically distributed second springs (17) are connected between the slide (14) and the auxiliary smoke pipe (2); the symmetrically distributed second springs (17) are all wound around the slide (14); a large circular hole is opened on the bottom wall of the slide (14); a retaining frame (15) for controlling the opening and closing of the large circular hole is slidably connected to the slide (14); the retaining frame (15) is arranged in a dome shape; symmetrically distributed first springs (16) are connected between the retaining frame (15) and the slide (14); the symmetrically distributed first springs (16) are all wound around the retaining frame (15).

7. A continuous graphitization furnace flue gas heat recovery device for continuously collecting CS2 as claimed in claim 6, characterized in that: An electromagnetic frame (18) is arranged in the exhaust pipe of the auxiliary smoke pipe (2). A sliding magnetic block (19) is slidably connected to the electromagnetic frame (18). Both the electromagnetic frame (18) and the sliding magnetic block (19) are provided with evenly distributed fan-shaped air holes, and the fan-shaped air holes of the two are arranged staggered with each other. A tension spring (20) is connected between the sliding magnetic block (19) and the electromagnetic frame (18). The tension spring (20) is wound around the electromagnetic frame (18). The sliding magnetic block (19) is fixedly connected to a magnetic push frame (21). The magnetic push frame (21) passes through the slide frame (14). A clamping frame (22) is fixedly connected to the blocking frame (15). A clamping block (23) is fixedly connected to a side of the magnetic push frame (21) close to the clamping frame (22).

8. A continuous graphitization furnace flue gas heat recovery device for continuously collecting CS2 as claimed in claim 7, characterized in that: The card frame (22) is provided with a card slot for realizing accurate card connection with the card block (23) on the magnetic push frame (21).

9. A continuous graphitization furnace flue gas heat recovery device for sustainable collection of CS2 as claimed in claim 8, characterized in that: The electrochemical sensor (9) is electrically connected to the electromagnet (13) and the electromagnetic frame (18) via a control module.

10. A continuous graphitization furnace flue gas heat recovery device for continuously collecting CS2 according to claim 9, characterized in that: Each nozzle (5) is provided with a rotating frame (24).

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