Asphalt smoke purification treatment system
By adding a cyclone dust collector and purification box after the electric dust collector, and using the lime layer and deodorizing filter layer to treat the asphalt flue gas, the problems of incomplete purification and high cost are solved, and efficient and low-cost asphalt flue gas purification is achieved.
Patent Information
- Application Number
- CN202421951084.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-13
AI Technical Summary
The existing asphalt flue gas purification method has incomplete purification, resulting in obvious odor in the factory and surrounding areas, and the cost of RTO incineration method is high.
After the electric dust collector, a cyclone dust collector and a purification box are added. The cyclone dust collector is used to separate the tar. The lime layer and deodorizing filter layer in the purification box are desulfurized and deodorized. Combined with the motor-driven frame structure, it is convenient for cleaning the filter layer.
The complete purification of asphalt flue gas has been achieved, the odor of the factory area has been eliminated, the purification cost has been reduced, and the environmental protection requirements have been met.
Smart Images
Figure CN223042507U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fume treatment devices, in particular to a purification treatment system for asphalt fume. Background Art
[0002] Asphalt is one of the main raw materials in carbon enterprises. Usually, solid asphalt is heated and melted into liquid asphalt for use. During the melting process of asphalt, a large amount of harmful fumes will be generated. The asphalt fumes contain tar particles, hydrocarbons, H2O, S2O, CO2, benzo[a]pyrene and other components with complex compositions. There are polycyclic aromatic hydrocarbons and a small amount of heterocyclic compounds of O2, N2, SO4, among which there are more than a hundred kinds such as naphthalene, phenanthrene, carbazole, phenol, etc., and dozens of them can cause cancer. In particular, benzene compounds will cause serious harm to humans, animals and plants. At present, there are several methods, such as incineration method, wet method, dry method, etc., which are used less due to purification effect and cost factors. The more commonly used dust collector is the electric precipitation method for purification.
[0003] However, for the existing purification methods of asphalt fumes generated in the carbon production process, most of them use an electric precipitator and then the RTO incineration method to purify and discharge the asphalt fumes. However, in this process, first, there are still a certain amount of harmful gases in the asphalt fumes after purification by the electric precipitation method, and there is an obvious odor in the factory area and its surrounding areas; second, the capital construction investment and operating cost of the RTO incineration method are very high. To solve the above problems, we propose a purification treatment system for asphalt fume. Content of the Utility Model
[0004] (1) Technical Problems to be Solved
[0005] Aiming at the deficiencies of the existing technology, the utility model provides a purification treatment system for asphalt fume, which has the advantage of further treating asphalt fumes by using a cyclone dust collector, and solves the problem of incomplete purification of asphalt fumes polluting the atmospheric environment.
[0006] (2) Technical Solutions
[0007] To achieve the above object, the utility model provides the following technical solution: A purification treatment system for asphalt fume, including a recovery component; the recovery component includes:
[0008] A fan is connected to the side of the electric precipitator through a pipeline. A butterfly valve is arranged on the output pipeline of the fan, and the fan is connected to a chimney through a pipeline;
[0009] A DN smoke pipe is arranged on the top of the electric precipitator, and the other end of the DN smoke pipe is connected to a tar storage tank;
[0010] A purification component is arranged on the recovery component, and the purification component includes:
[0011] The cyclone dust collector is connected to the fan output pipeline through the DN smoke pipe. The bottom of the cyclone dust collector is connected to the tar storage tank through a pipeline, and a plug valve is arranged on the output pipeline at the bottom of the cyclone dust collector;
[0012] The DN steel pipe is arranged at the top of the cyclone dust collector, and a ball valve is arranged on the DN steel pipe;
[0013] The purification box is connected to the cyclone dust collector through the DN steel pipe, and the purification box is connected to the rice chimney through a roasting pipeline.
[0014] In some embodiments, two frames are arranged inside the purification box, and a slaked lime layer and a deodorizing filter layer are respectively arranged on the frames.
[0015] In some embodiments, a chute is arranged inside the purification box, and a slider is arranged on the frame and is slidably connected to the chute.
[0016] In some embodiments, a rack is arranged on the slider at the top of the frame, a motor is arranged at the top of the purification box, a gear is arranged at the output end of the motor, the gear is meshed with the rack, and a through groove for cooperating with the movement of the rack is arranged on the chute.
[0017] In some embodiments, a box door is rotatably arranged on the purification box, an insertion block is arranged on the box door, and the insertion block is inserted into the chute.
[0018] In some embodiments, a rubber sealing strip is arranged on the chute.
[0019] In some embodiments, the box door and the purification box are fixedly connected through a buckle.
[0020] In some embodiments, a handle is arranged on the box door.
[0021] (III) Beneficial effects
[0022] Compared with the prior art, the present utility model provides a purification treatment system for asphalt fume, which has the following beneficial effects:
[0023] 1. For this purification treatment system for asphalt fume, by adding a cyclone dust collector on the basis of the original electric precipitator to purify the asphalt fume, a large amount of tar content in the asphalt fume dust is removed after purification by the cyclone dust collector. Then, the asphalt fume dust is discharged into the purification box, and after using slaked lime for desulfurization and cooperating with a deodorizing layer to eliminate the odor of the fume dust, it is discharged outdoors through the chimney.
[0024] 2. The purification treatment system for asphalt fumes drives a gear to rotate by setting a motor on the purification box, sets a frame outside the slaked lime layer and the deodorization layer, sets a slider on the frame and slidably connects it with the purification box, and simultaneously sets a rack on the slider, with the rack meshing with the gear. Therefore, the user can control the frame to move out to clean or replace the slaked lime layer and the deodorization layer through the motor. Meanwhile, the door on the purification box ensures the airtightness of the purification box. Description of the Drawings
[0025] Figure 1 It is a schematic structural diagram of the present utility model;
[0026] Figure 2 It is a schematic diagram of the principle structure of the present utility model;
[0027] Figure 3 It is a schematic cross-sectional structure diagram of the purification box in the present utility model;
[0028] Figure 4 It is a schematic top view structure diagram of the gear assembly in the present utility model;
[0029] Figure 5 It is a schematic left cross-sectional view structure diagram of the purification box assembly in the present utility model;
[0030] Figure 6 It is a schematic front view structure diagram of the purification box in the present utility model.
[0031] In the figure:
[0032] 1. Recycling assembly; 11. Electrostatic precipitator; 12. Fan; 13. Butterfly valve; 14. Chimney; 15. DN800 smoke pipe; 16. Tar storage tank;
[0033] 2. Purification assembly; 21. Cyclone dust collector; 211. DN25 steel pipe; 212. Ball valve; 213. Plug valve; 22. Purification box; 221. Motor; 222. Gear; 223. Chute; 23. 60-meter chimney; 231. Roasting pipeline; 24. Frame; 241. Slaked lime layer; 242. Deodorization filter layer; 243. Rack; 244. Rubber sealing strip; 25. Door; 251. Insert block; 252. Buckle. Detailed Embodiments
[0034] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0035] It should be noted that all the directional indications in the embodiments of the present application are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0036] In the present application, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0037] When purifying the asphalt fume generated in the carbon production process, usually the asphalt fume is discharged to an electrostatic precipitator to separate the solid particles in the asphalt gas, and then the purified asphalt gas is discharged to a purification box to perform secondary purification such as deodorization of the asphalt gas by the RTO incineration method, and finally discharged outdoors.
[0038] In the related art, first, there are still a certain amount of harmful gases in the asphalt fume after being purified by the electrostatic precipitation method, and there is an obvious odor in the factory area and its surrounding areas; second, the capital construction investment and operating cost of the RTO incineration method are very high. To solve the above problems, we propose a purification treatment system for asphalt fume.
[0039] To solve the problems in the related art to a certain extent, the embodiments of the present application provide a purification treatment system for asphalt fume. When in use, only after the asphalt dust is treated by the electrostatic precipitator 11 and then enters the cyclone separator 21. The flue gas enters the device obliquely from the side wall of the top of the upper cylinder of the cyclone separator 21 and then descends spirally. During this process, most of the asphalt fume tar and water are separated. The green tar sinks, and the water vapor is discharged from the exhaust pipe along with the hot gas. After this round, the content of asphalt fume tar in the flue gas is very little left. To more thoroughly remove the tar of the asphalt fume, the asphalt flue gas then enters the purification box 22. The slaked lime layer 241 and the deodorizing filter layer 242 provided inside the purification box 22 can perform desulfurization treatment and deodorization treatment on the asphalt flue gas (more thoroughly remove the solid particles in the asphalt flue gas). After purification, the asphalt flue gas is discharged from the 60-meter chimney 23 (the 60-meter chimney is set at a height to comply with relevant environmental protection regulations and reduce the impact of the flue gas on the ground).
[0040] The present application will be described below with reference to the accompanying drawings and specific embodiments:
[0041] Combined with Figures 1 - 6, an embodiment of the present application provides a purification treatment system for asphalt fume, including a recovery component 1; the recovery component 1 includes: an electric precipitator 11 is connected to a fan 12 through a pipeline on the side, a butterfly valve 13 is arranged on the output pipeline of the fan 12, and the fan 12 is connected to a chimney 14 through a pipeline; a DN800 smoke pipe 15 is arranged on the top of the electric precipitator 11, and the other end of the DN800 smoke pipe 15 is connected to a tar storage tank 16; a purification component 2 is arranged on the recovery component 1, and the purification component 2 includes: a cyclone dust collector 21 is connected to the output pipeline of the fan 12 through the DN800 smoke pipe 15, the bottom of the cyclone dust collector 21 is connected to the tar storage tank 16 through a pipeline, and a stop valve 213 is arranged on the bottom output pipeline of the cyclone dust collector 21; a DN25 steel pipe 211 is arranged on the top of the cyclone dust collector 21, and a ball valve 212 is arranged on the DN25 steel pipe 211; a purification box 22 is connected to the cyclone dust collector 21 through the DN25 steel pipe 211, and the purification box 22 is connected to a 60-meter chimney 23 through a roasting pipeline 231.
[0042] After the user discharges the asphalt fume generated during the carbon production process into the electric precipitator 11, the electric precipitator 11 is started. The electric precipitator 11 is designed based on the physical principle of a high-voltage electrostatic field. Through the action of the electric field, particulate matters such as dust and tar mist in the dust-containing gas are charged and captured under the action of the electric field force (this part is prior art, so it is not shown in the figure). After the preliminary purification of the fixed particulate matters such as the tar component in the asphalt fume is completed, before a part of the asphalt fume containing tar particles is drawn out by the fan 12 and enters the chimney 14, the butterfly valve 13 is closed by turning it clockwise. This part of the asphalt fume is intercepted and enters the cyclone dust collector 21 through the DN800 smoke pipe 15. The flue gas enters the device obliquely from the side wall of the top of the upper cylinder of the cyclone dust collector 21 and then descends spirally. During this process, most of the asphalt fume tar is separated from the water. The green tar sinks, and the water vapor is discharged from the exhaust pipe along with the hot gas. After this round, the content of asphalt fume tar in the flue gas is very little. In order to more thoroughly remove the tar of the asphalt fume, the asphalt fume enters the purification box 22 again. The slaked lime layer 241 and the deodorizing filter layer 242 arranged inside the purification box 22 can perform desulfurization treatment and deodorization treatment on the asphalt fume (more thoroughly remove the solid particulate matters in the asphalt fume). After the purification is completed, the asphalt fume is discharged from the 60-meter chimney 23 (the 60-meter chimney is set at a height to comply with relevant environmental protection regulations and reduce the impact of the flue gas on the ground). After the purification is completed, the butterfly valve 13 and the ball valve 212 are opened to assist the discharge of water vapor and hot gas inside the entire system.
[0043] In some embodiments, two frames 24 are arranged inside the purification box 22, and a slaked lime layer 241 and a deodorizing filter layer 242 are respectively arranged on the frames 24. The slaked lime layer 241 and the deodorizing filter layer 242 are arranged inside a double-layer filter screen on the frame 24, which has a purification effect on the soot while not hindering the passage of the soot.
[0044] In some embodiments, a sliding groove 223 is arranged inside the purification box 22, and a sliding block is arranged on the frame 24 and is slidably connected with the sliding groove 223. By arranging the sliding groove 223 on the purification box 22 and the sliding block on the frame 24, when it is necessary to replace or clean the slaked lime layer 241 and the deodorizing filter layer 242 after a period of use, the frame 24 can be controlled to slide out for cleaning.
[0045] In some embodiments, a rack 243 is arranged on the sliding block at the top of the frame 24, a motor 221 is arranged at the top of the purification box 22, a gear 222 is arranged at the output end of the motor 221, the gear 222 is meshed and connected with the rack 243, and a through groove for cooperating with the movement of the rack 243 is arranged on the sliding groove 223. When the user needs to clean the slaked lime layer 241 or the deodorizing filter layer 242, the motor 221 is started, the output end of the motor 221 rotates counterclockwise, driving the gear 222 to rotate synchronously, so that the rack 243 arranged on the sliding block at the top of the frame 24 moves along the sliding groove 223 towards the outside of the purification box 22, driving the frame 24 to extend out, and the internal slaked lime layer 241 or deodorizing filter layer 242 can be exposed for cleaning. At the same time, a limiting block is arranged at the tail of the rack 243 to prevent the motor 221 from controlling the movement track of the rack 243 to be too long and causing the frame 24 to fall out of the purification box 22.
[0046] In some embodiments, a box door 25 is rotatably arranged on the purification box 22, an insertion block 251 is arranged on the box door 25, and the insertion block 251 is inserted into the sliding groove 223. By arranging the box door 25 on the purification box 22, when the frame 24 is inside the purification box 22, the user can rotate the box door 25 to insert the insertion block 251 on the box door 25 into the sliding groove 223 to complete the closing of the purification box 22. At the same time, a trapezoidal rubber block is arranged on the insertion block 251 to increase the friction force and strengthen the insertion of the insertion block 251 and the sliding groove 223.
[0047] In some embodiments, a rubber sealing strip 244 is arranged on the sliding groove 223. An opening for cooperating with the sliding block of the frame 24 is arranged on the rubber sealing strip 244. After the sliding block passes through, the rubber sealing strip 244 will automatically close under the elastic action of the rubber sealing strip 244, thereby preventing fixed particulate matter from falling into the sliding groove 223.
[0048] In some embodiments, the box door 25 and the purification box 22 are fixedly connected by a buckle 252. Using the buckle 252 can press the box door 25 tightly on the purification box 22 to ensure the airtightness of the box door 25.
[0049] In some embodiments, a handle is provided on the cabinet door 25. The provision of the handle facilitates the user to apply a force to pull out the cabinet door 25 after the fixing of the buckle 252 is released, and provides a force application point for the user.
[0050] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.
[0051] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of the technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0052] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A system for purifying asphalt smoke, comprising a recovery component (1); the recovery component (1) comprises: The electric precipitator (11) is connected to a fan (12) on its side through a pipeline, a butterfly valve (13) is provided on the output pipeline of the fan (12), and the fan (12) is connected to a chimney (14) through the pipeline; A DN800 smoke pipe (15) is arranged on the top of the electric precipitator (11), and the other end of the DN800 smoke pipe (15) is connected to the tar storage tank (16); The invention is characterized in that: the recovery component (1) is provided with a purification component (2), and the purification component (2) comprises: The cyclone dust collector (21) is connected to the output pipeline of the fan (12) through the DN800 smoke pipe (15), the bottom of the cyclone dust collector (21) is connected to the tar storage tank (16) through a pipeline, and a stopcock (213) is provided on the output pipeline at the bottom of the cyclone dust collector (21); A DN25 steel pipe (211) is arranged on the top of the cyclone dust collector (21), and a ball valve (212) is arranged on the DN25 steel pipe (211); The purification box (22) is connected to the cyclone dust collector (21) through the DN25 steel pipe (211), and the purification box (22) is connected to the 60-meter chimney (23) through the roasting pipeline (231).
2. The asphalt fume purification system according to claim 1, characterized in that: Two frames (24) are arranged inside the purification box (22), and a slaked lime layer (241) and a deodorizing filter layer (242) are respectively arranged on the frames (24).
3. The asphalt fume purification system according to claim 2, characterized in that: A slide groove (223) is provided inside the purification box (22), and a sliding block is provided on the frame (24) and is slidably connected to the slide groove (223).
4. The asphalt fume purification system according to claim 3, characterized in that: A rack (243) is arranged on the slider at the top of the frame (24), a motor (221) is arranged on the top of the purification box (22), a gear (222) is arranged at the output end of the motor (221), the gear (222) and the rack (243) are meshed and connected, and a through groove is arranged on the slide groove (223) to cooperate with the movement of the rack (243).
5. The asphalt fume purification system according to claim 4, characterized in that: The purification box (22) is rotatably provided with a box door (25), and the box door (25) is provided with an insert block (251), and the insert block (251) is plugged into the slide groove (223).
6. The asphalt fume purification system according to claim 5, characterized in that: The slide groove (223) is provided with a rubber sealing strip (244).
7. The asphalt fume purification system according to claim 5, characterized in that: The box door (25) and the purification box (22) are fixedly connected via a buckle (252).
8. The asphalt fume purification system according to claim 7, characterized in that: The box door (25) is provided with a handle.