Flue gas desulfurization and dust removal equipment for graphitization furnace
By combining cooling water tank and atomizing nozzle for cooling, filter plate filtration, and conversion of sulfur dioxide into sodium sulfate by desulfurization circulating slurry, the problem of incomplete cooling and dust removal of traditional equipment has been solved, achieving efficient dust removal and resource recovery.
Patent Information
- Application Number
- CN202423247118.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Traditional flue gas desulfurization and dust removal equipment for graphitization furnaces is unable to quickly reduce the flue gas temperature, leading to equipment damage and incomplete dust removal, making it difficult to maintain stable and efficient dust removal.
The system employs components such as a cooling water tank, atomizing nozzles, filter plates, and a desulfurization circulating slurry chamber. The atomizing nozzles cool and filter the flue gas, while the desulfurization circulating slurry converts sulfur dioxide into sodium sulfate, achieving efficient dust removal and resource recovery.
It effectively reduces flue gas temperature to the optimal desulfurization range, thoroughly removes particulate matter, extends equipment life, and recycles sodium sulfate, reducing waste emissions.
Smart Images
Figure CN223668973U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to flue gas desulfurization and dust removal technical field especially relates to a graphitization furnace flue gas desulfurization and dust removal equipment. BACKGROUND
[0002] The graphitization furnace is a device for converting carbon materials into graphite at high temperature, widely used in the production process of graphite electrodes and graphite products. During the graphitization process, a large amount of high-temperature flue gas is generated in the furnace, which usually contains harmful substances such as dust and sulfur dioxide (SO2). If not treated, the emission of these pollutants into the atmosphere will seriously pollute the environment, cause acid rain and air quality problems. Therefore, it is necessary to use flue gas desulfurization and dust removal equipment to remove SO2 and dust in the flue gas, ensure that the environmental emission standard is met, reduce the impact on the environment, and protect the health of workers and the normal operation of equipment.
[0003] The traditional graphitization furnace flue gas desulfurization and dust removal equipment usually carries out dust removal first and then desulfurization treatment. First, the flue gas is extracted from the furnace body by the induced draft fan and cooled by water spraying through the cooling equipment; then, it enters the dust removal equipment (such as bag-type dust collector or electric dust collector) for particulate matter removal; then, the flue gas enters the desulfurization device, usually using limestone-gypsum wet desulfurization, using the absorption liquid in the absorption tower to neutralize and remove the acidic gases such as sulfur dioxide; finally, the treated flue gas is discharged through the chimney. During use, the equipment needs regular maintenance to ensure the effectiveness of the filter medium and the absorption liquid.
[0004] When using the traditional graphitization furnace flue gas desulfurization and dust removal equipment, the flue gas temperature generated by the graphitization furnace is usually high, and the traditional equipment is usually naturally cooled or simply water-sprayed cooled, which is difficult to rapidly and effectively reduce the flue gas temperature, resulting in that the flue gas is still at a high temperature when entering the dust removal and desulfurization equipment, which is easy to cause damage to the equipment, and at the same time, when dust removal is encountered, the high temperature and sticky dust in the flue gas are easy to cause incomplete filtration, thereby making it difficult to stably maintain high-efficiency dust removal. SUMMARY
[0005] In order to make up for the above shortcomings, the utility model provides a graphitization furnace flue gas desulfurization and dust removal equipment, aiming at improving the traditional flue gas desulfurization and dust removal equipment, which is difficult to rapidly reduce the flue gas temperature, easy to cause damage to the equipment, and at the same time, the dust removal is easy to cause incomplete filtration, thereby making it difficult to stably maintain high-efficiency dust removal.
[0006] To achieve the above object, the utility model provides the following technical scheme: A kind of graphitization furnace flue gas desulfurization dust removal equipment, including ventilating cylinder, the outer wall one side of the ventilating cylinder is fixedly connected with discharge pipe, the outer wall other side of the ventilating cylinder is fixedly connected with connecting flange, the outer wall of the ventilating cylinder is fixedly connected with cooling water tank, the top of the cooling water tank is fixedly connected with circulating pump, the output end of the circulating pump is fixedly connected with conveying pipe, the inner wall of the ventilating cylinder is fixedly connected with fixed frame, the inside of the fixed frame is fixedly connected with circulating pipe, the conveying pipe is connected with circulating pipe, the bottom of the circulating pipe is fixedly connected with atomizing nozzle, the outer wall of the ventilating cylinder is rotatably connected with baffle, the inside of the ventilating cylinder is provided with sealing assembly, the sealing assembly is used to seal the ventilating cylinder, the inside of the ventilating cylinder is slidably connected with filter plate.
[0007] Further, the sealing assembly includes a limiting plate, the outer wall of the limiting plate is fixedly connected in the inside of the ventilating cylinder, and the outer wall of the baffle is fixedly connected with a sealing strip.
[0008] Further, the outer wall of the ventilating cylinder is provided with a desulfurization circulating slurry bin, the inner wall of the desulfurization circulating slurry bin is fixedly connected with an oxidation fan, the inside of the desulfurization circulating slurry bin is provided with a conveying pipeline I, the middle part of the conveying pipeline I is provided with an ammonium sulfate pump, one end of the conveying pipeline I is fixedly connected with a hydrocyclone, the top of the hydrocyclone is fixedly connected with a circulating pipeline, the bottom of the hydrocyclone is fixedly connected with a conveying pipeline II, and one end of the conveying pipeline II is fixedly connected with a storage bin.
[0009] Further, the outer wall of the filter plate is slidably connected to the inner wall of the limiting plate, and the limiting plate is used for positioning and guiding the movement of the filter plate.
[0010] Further, the lower surface of the ammonium sulfate pump is fixedly connected to the upper surface of the desulfurization circulating slurry bin, and the ammonium sulfate pump is fixed to the upper surface of the desulfurization circulating slurry bin.
[0011] Further, one end of the circulating pipeline is arranged in the inside of the desulfurization circulating slurry bin, and the circulating pipeline is used for conveying clear liquid to the inside of the desulfurization circulating slurry bin.
[0012] Further, the bottom of the hydrocyclone is fixedly connected with a support, and the support is used for supporting the hydrocyclone.
[0013] Further, the storage bin is arranged on one side of the outer wall of the desulfurization circulating slurry bin, and the storage bin is used for storing products.
[0014] The utility model has the following beneficial effects:
[0015] 1. The utility model discloses a first through the connecting flange and the ventilation tube to the flue gas is transported, then starts the circulating pump cooperation cooling water tank, conveying pipe, circulating pipe and atomizing nozzle to the flue gas is cooled and is handled, then through the filter plate is filtered, can be through pulling the baffle cooperation sealing strip, the limit board to the filter plate is disassembled and is cleaned in this process, thereby maintains high -efficient filtration, solves the equipment difficultly and rapidly reduces the flue gas temperature and is easy to lead to the equipment damage, and simultaneously dust removal is easy to appear not thoroughly filtered, thereby is difficult to stably maintain the problem of high -efficient dust removal, reaches the flue gas temperature can be reduced to the best temperature range of desulfurization reaction, can more thoroughly remove the particulate matter in the flue gas, reduces the high temperature and the dust damage probability, prolongs the equipment life.
[0016] 2. The utility model discloses a first through the desulfurization circulating slurry cooperation oxidation fan in the desulfurization circulating slurry bin in the air sulfur dioxide is converted into sodium sulfate, then starts the ammonium sulfate pump cooperation conveying pipeline no. 1, hydrocyclone and circulating pipeline will most of the desulfurization circulating slurry, finally cooperation conveying pipeline no. 2 and storage bin are stored to sodium sulfate, reached not only can eliminate pollution, can also recycle sodium sulfate, produce economic benefit, reduce the effect of waste discharge. DRAWINGS
[0017] Figure 1 It is a kind of graphite furnace flue gas desulfurization dust removal equipment's stereoscopic structure schematic diagram for the utility model proposes;
[0018] Figure 2 It is a kind of graphite furnace flue gas desulfurization dust removal equipment's ventilation tube internal structure schematic diagram for the utility model proposes;
[0019] Figure 3 It is a kind of graphite furnace flue gas desulfurization dust removal equipment's fixed frame one side structure schematic diagram for the utility model proposes;
[0020] Figure 4 It is a kind of graphite furnace flue gas desulfurization dust removal equipment's hydrocyclone structure schematic diagram for the utility model proposes.
[0021] Legend:
[0022] 1, ventilation tube;2, discharge pipe;3, connecting flange;4, cooling water tank;5, circulating pump;6, conveying pipe;7, fixed frame;8, circulating pipe;9, atomizing nozzle;10, baffle;11, sealing assembly;1101, sealing strip;1102, limit board;12, filter plate;13, desulfurization circulating slurry bin;14, oxidation fan;15, conveying pipeline no. 1;16, ammonium sulfate pump;17, hydrocyclone;18, circulating pipeline;19, support;20, conveying pipeline no. 2;21, storage bin. Specific implementation
[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0024] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Figure 1 Figure 3 The present application provides an embodiment: a graphite furnace flue gas desulfurization and dust removal equipment, including a ventilation cylinder 1, the outer wall of the ventilation cylinder 1 one side is fixedly connected with the discharge pipe 2, the outer wall of the ventilation cylinder 1 the other side is fixedly connected with the connecting flange 3, through the discharge pipe 2 after dust removal and cooling Flue gas is discharged to the inside of the desulfurization circulating slurry bin 13, through the connecting flange 3 and the graphite furnace is connected, the flue gas is transported, the outer wall of the ventilation cylinder 1 is fixedly connected with the cooling water tank 4, the top of the cooling water tank 4 is fixedly connected with the circulating pump 5, the output end of the circulating pump 5 is fixedly connected with the conveying pipe 6, the cooling water in the cooling water tank 4 is transported to the inside of the conveying pipe 6 through the circulating pump 5, the inner wall of the ventilation cylinder 1 is fixedly connected with the fixed frame 7, the inside of the fixed frame 7 is fixedly connected with the circulating pipe 8, the conveying pipe 6 is connected with the circulating pipe 8, the bottom of the circulating pipe 8 is fixedly connected with the atomizing nozzle 9, the cooling water is transported to the inside of the circulating pipe 8 and the atomizing nozzle 9 through the conveying pipe 6, the air is cooled through the circulating pipe 8, the atomizing nozzle 9 is discharged atomizing cooling water cooling at the same time Still can increase the size of dust particles, the outer wall of the ventilation cylinder 1 is rotatably connected with the baffle 10, the filter plate 12 is limited through the baffle 10, the inside of the ventilation cylinder 1 is provided with sealing assembly 11, sealing assembly 11 is used to seal the ventilation cylinder 1, the inside of the ventilation cylinder 1 is slidably connected with the filter plate 12, sealing assembly 11 includes limit plate 1102, the outer wall of the limit plate 1102 is fixedly connected in the inside of the ventilation cylinder 1, the outer wall of the baffle 10 is fixedly connected with sealing strip 1101, the sealing between the baffle 10 and the ventilation cylinder 1 is realized through the sealing strip 1101 in sealing assembly 11, the filter plate 12 is limited through the limit plate 1102.
[0025] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Figure 1 Figure 4 The outer wall of the ventilation cylinder 1 is provided with a desulfurization circulating slurry bin 13. Sodium sulfite is generated by the reaction of desulfurization circulating slurry in the desulfurization circulating slurry bin 13 with sulfur dioxide in flue gas. The inner wall of the desulfurization circulating slurry bin 13 is fixedly connected with an oxidation fan 14. Air in the desulfurization circulating slurry bin 13 is discharged by the oxidation fan 14, so that sodium sulfite is formed into sodium sulfate. The inside of the desulfurization circulating slurry bin 13 is provided with a conveying pipeline I 15. The middle part of the conveying pipeline I 15 is provided with a sulfur ammonium pump 16. The desulfurization circulating slurry and sodium sulfate are conveyed into the inside of a hydrocyclone 17 by the sulfur ammonium pump 16 cooperating with the conveying pipeline I 15. One end of the conveying pipeline I 15 is fixedly connected with the hydrocyclone 17. The desulfurization circulating slurry and sodium sulfate are treated by the hydrocyclone 17. The top of the hydrocyclone 17 is fixedly connected with a circulating pipeline 18. The desulfurization circulating slurry is conveyed into the inside of the desulfurization circulating slurry bin 13 by the circulating pipeline 18. The bottom of the hydrocyclone 17 is fixedly connected with a conveying pipeline II 20. One end of the conveying pipeline II 20 is fixedly connected with a storage bin 21. Sodium sulfate is conveyed into the inside of the storage bin 21 by the conveying pipeline II 20. The outer wall of the filter plate 12 is slidingly connected to the inner wall of a limiting plate 1102. The limiting plate 1102 is used for positioning and guiding the movement of the filter plate 12. The lower surface of the sulfur ammonium pump 16 is fixedly connected to the upper surface of the desulfurization circulating slurry bin 13. The sulfur ammonium pump 16 is fixed to the upper surface of the desulfurization circulating slurry bin 13. One end of the circulating pipeline 18 is arranged in the inside of the desulfurization circulating slurry bin 13. The circulating pipeline 18 is used for conveying clear liquid into the inside of the desulfurization circulating slurry bin 13. The bottom of the hydrocyclone 17 is fixedly connected with a support 19. The support 19 is used for supporting the hydrocyclone 17. The storage bin 21 is arranged on one side of the outer wall of the desulfurization circulating slurry bin 13. The storage bin 21 is used for storing products.
[0026] Working principle: when the graphitization furnace flue gas desulfurization and dust removal equipment is needed, first of all, the connecting flange 3 is connected with the graphite furnace flue gas exhaust pipe, so that the flue gas is discharged into the inside of the ventilation cylinder 1, then the circulating pump 5 is started to drive the cooling water in the cooling water tank 4 to the inside of the conveying pipe 6, then the cooling water is conveyed to the inside of the circulating pipe 8 for circulating conveying, and the middle part of the ventilation cylinder 1 is cooled. Part of the cooling water will be conveyed into the inside of the atomizing nozzle 9 in this process, then sprayed out by the atomizing nozzle 9, combined with the dust in the flue gas, and also reduced the temperature of the flue gas, realizing the effect of cooling, then the flue gas combined with the atomized water is conveyed into the inside of the filter plate 12, the dust in the flue gas is filtered by the filter plate 12, after a long time of use, the baffle 10 can be contacted by the buckle at one end of the baffle 10, then pulled to rotate, so that the baffle 10 is separated from the ventilation cylinder 1, then the filter plate 12 can be taken out for cleaning or replacement. In addition, the sealing strip 1101 on the outer wall of the baffle 10 is in close contact with the inner wall of the ventilation cylinder 1 after being closed to realize sealing, so as to achieve the effect of dust removal.
[0027] Further, the dust-removed flue gas is delivered by the exhaust pipe 2 to the inside of the desulfurization circulating slurry bin 13, reacts with the sulfur dioxide in the flue gas to generate sodium sulfite in the desulfurization circulating slurry inside the desulfurization circulating slurry bin 13, and the sodium sulfite accumulates in the desulfurization circulating slurry until a near-saturated state, while the oxidation fan 14 is started to forcibly introduce air into the desulfurization circulating slurry bin 13 to oxidize the sodium sulfite into sodium sulfate crystals, at which time the ammonium sulfate pump 16 is started to deliver the desulfurization circulating slurry together with the sodium sulfate to the inside of the hydrocyclone 17, and the centrifugal action of the hydrocyclone 17 separates the clear liquid to be delivered again to the inside of the desulfurization circulating slurry bin 13 through the circulating pipeline 18 for reuse, while the turbid liquid with the sodium sulfate is delivered to the inside of the storage bin 21 through the delivery pipeline 2 20 for storage and use.
[0028] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements for some of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A graphite furnace flue gas desulfurization and dust removal equipment comprising a ventilation cylinder (1), characterized in that: The outer wall of the ventilation cylinder (1) is fixedly connected with a discharge pipe (2), the other side of the outer wall of the ventilation cylinder (1) is fixedly connected with a connecting flange (3), the outer wall of the ventilation cylinder (1) is fixedly connected with a cooling water tank (4), the top of the cooling water tank (4) is fixedly connected with a circulating pump (5), the output end of the circulating pump (5) is fixedly connected with a conveying pipe (6), the inner wall of the ventilation cylinder (1) is fixedly connected with a fixing frame (7), the inside of the fixing frame (7) is fixedly connected with a circulating pipe (8), the conveying pipe (6) is connected with the circulating pipe (8), the bottom of the circulating pipe (8) is fixedly connected with an atomizing nozzle (9), the outer wall of the ventilation cylinder (1) is rotatably connected with a baffle (10), the inside of the ventilation cylinder (1) is provided with a sealing assembly (11), the sealing assembly (11) is used for sealing the ventilation cylinder (1), and the inside of the ventilation cylinder (1) is slidably connected with a filter plate (12).
2. A flue gas desulphurization and dust removal apparatus for graphitization furnaces according to claim 1, characterized in that: The sealing assembly (11) comprises a limiting plate (1102), and the outer wall of the limiting plate (1102) is fixedly connected in the inside of the ventilation cylinder (1).
3. The flue gas desulphurization and dust removal apparatus for graphitization furnace according to claim 1, characterized in that: The outer wall of the ventilation cylinder (1) is provided with a desulfurization circulating slurry bin (13), the inner wall of the desulfurization circulating slurry bin (13) is fixedly connected with an oxidation fan (14), the inside of the desulfurization circulating slurry bin (13) is provided with a conveying pipeline I (15), the middle part of the conveying pipeline I (15) is provided with an ammonium sulfate pump (16), one end of the conveying pipeline I (15) is fixedly connected with a hydrocyclone (17), the top of the hydrocyclone (17) is fixedly connected with a circulating pipeline (18), the bottom of the hydrocyclone (17) is fixedly connected with a conveying pipeline II (20), and one end of the conveying pipeline II (20) is fixedly connected with a storage bin (21).
4. A flue gas desulphurization and dust removal apparatus for graphitization furnaces according to claim 2, characterized in that: The outer wall of the filter plate (12) is slidably connected to the inner wall of the limiting plate (1102), and the limiting plate (1102) is used for positioning and guiding the movement of the filter plate (12).
5. A flue gas desulphurization and dust removal apparatus for graphitization furnaces according to claim 3, characterized in that: The lower surface of the ammonium sulfate pump (16) is fixedly connected to the upper surface of the desulfurization circulating slurry bin (13), and the ammonium sulfate pump (16) is fixed to the upper surface of the desulfurization circulating slurry bin (13).
6. A flue gas desulphurization and dust removal apparatus for graphitization furnaces according to claim 3, characterized in that: One end of the circulating pipeline (18) is arranged in the inside of the desulfurization circulating slurry bin (13), and the circulating pipeline (18) is used for conveying clear liquid into the inside of the desulfurization circulating slurry bin (13).
7. A flue gas desulphurization and dust removal apparatus for graphitization furnaces according to claim 3, characterized in that: The bottom of the hydrocyclone (17) is fixedly connected with a support (19), and the support (19) is used for supporting the hydrocyclone (17).
8. A flue gas desulphurization and dust removal apparatus for graphitization furnaces according to claim 3, characterized in that: The storage bin (21) is arranged on one side of the outer wall of the desulfurization circulating slurry bin (13), and the storage bin (21) is used for storing products.