Flue gas purification device in asphalt production process
Through the dual-stage purification technology, the combination of filter and dissolving solution is used to achieve multi-layer purification of asphalt flue gas, solving the problem of low purification efficiency of existing devices, and improving the cleanliness and environmental protection effect of flue gas.
Patent Information
- Application Number
- CN202422045747.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The existing asphalt flue gas purification devices have low purification efficiency and are difficult to meet strict environmental protection requirements, resulting in poor flue gas cleanliness.
Using the dual-stage purification technology, first the first filtration is performed through the filter element 1, then the flue gas is pressurized to contact the dissolved solution for secondary purification. Then the harmful substances are absorbed through the dissolved solution, and then the filter element 2 is filtered again to achieve multi-layer purification.
Significantly reduce the content of harmful substances in the flue gas, improve purification efficiency, ensure that the flue gas reaches higher cleanliness, and reduce environmental pollution.
Smart Images
Figure CN223069291U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of flue gas purification, in particular to a flue gas purification device in the asphalt production process. Background Technique
[0002] In the asphalt production process, flue gas is one of the main by-products, which contains a large number of harmful substances, such as particulate matter, sulfur dioxide, nitrogen oxides, hydrocarbons, etc. These substances have serious hazards to air quality and human health. Therefore, it is necessary to treat them through a flue gas purification device to ensure that the flue gas emissions meet the environmental protection standards.
[0003] Many existing asphalt flue gas purification devices only adopt single-stage purification technologies, such as simple spraying, filtering or adsorption, etc. Although these methods can remove some pollutants, the purification efficiency is limited, and it is difficult to meet the more stringent environmental protection requirements, resulting in poor cleanliness of the flue gas and environmental pollution. Content of the Utility Model
[0004] The purpose of the utility model is to provide a flue gas purification device in the asphalt production process, and through this device, the effect of improving the cleanliness of flue gas purification is realized, so as to solve the problem of poor cleanliness of flue gas purification in the prior art.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A flue gas purification device in the asphalt production process, including a cavity arranged inside a shell, a smoke inlet arranged at the lower end of the shell, the smoke inlet is communicated with the cavity, a first filter screen is arranged inside the cavity, an air pump is fixedly connected inside the shell, the output end of the air pump is fixedly connected with a pipeline, a cavity is arranged inside the shell, a flow splitting component is arranged inside the cavity, and the pipeline is communicated with the flow splitting component; a cover plate, the cover plate is arranged at the upper end of the shell, and a plurality of through holes are arranged in a rectangular array distribution inside the cover plate, and a second filter screen is arranged inside the upper end of the cover plate.
[0007] Preferably, a sliding groove is arranged through one side of the shell, a plate frame is slidably connected inside the sliding groove, and the inner wall of the plate frame is fixedly connected with one side wall of the filter screen.
[0008] Preferably, a notch is arranged at the top inside the cavity, and the input end of the air pump is communicated with the notch.
[0009] Preferably, the flow splitting component includes a plate, the plate is fixedly connected with the inner bottom of the cavity through bolts, a chamber is arranged inside the plate, and the pipeline is communicated with the lower end inside the chamber.
[0010] Preferably, a plurality of holes are arranged in a rectangular array distribution at the upper end of the plate, and the holes are communicated with the upper end inside the chamber.
[0011] Preferably, a groove is provided at the upper end of the cover plate, and the two side walls of the filter screen are fixedly connected to the inner wall of the groove.
[0012] Compared with the prior art, the advantages of the present utility model are as follows:
[0013] 1. The flue gas produced in asphalt production flows into the cavity through the smoke inlet, and is initially filtered by the first filter screen. Then, the cavity is suctioned by an air pump, and the flue gas flows into the air pump through the notch. The air pump pressurizes the flue gas, and then the pressurized flue gas is transported into the chamber through a pipeline. The pressurized flue gas ejects the dissolution liquid in the chamber from the holes. At the same time, the flue gas flowing in the chamber is dispersed and flows out through multiple holes, so that the dissolution liquid can fully contact the flue gas, and the harmful substances in the flue gas are dissolved or absorbed by the dissolution liquid to achieve secondary purification. Through the initial filtration of the first filter screen and the secondary purification of the dissolution liquid, the content of harmful substances in the flue gas can be greatly reduced, the cleanliness of the discharged flue gas can be improved, and environmental pollution can be reduced.
[0014] 2. The flue gas after secondary purification flows upward from inside the dissolution liquid and flows out of the shell through multiple orifices. During the process of the flue gas flowing out of the shell, it is re-filtered by the second filter screen. Through the re-filtration of the second filter screen, the residual fine particles, aerosols or other harmful substances that are not fully absorbed by the dissolution liquid in the flue gas can be captured, thereby further reducing the pollution degree of the flue gas and improving the overall purification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 FIG. 1 is a schematic front external structure view of a flue gas purification device during asphalt production proposed by the present utility model.
[0016] Figure 2 FIG. 2 is a schematic side sectional structure view of a flue gas purification device during asphalt production proposed by the present utility model.
[0017] Figure 3 FIG. 3 is a schematic front sectional structure view of a flue gas purification device during asphalt production proposed by the present utility model.
[0018] In the figure: 1 shell, 2 cavity, 3 smoke inlet, 4 sliding groove, 5 plate frame, 6 first filter screen, 7 notch, 8 air pump, 9 pipeline, 10 cavity, 11 plate, 12 chamber, 13 hole, 14 cover plate, 15 orifice, 16 groove, 17 second filter screen. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.
[0020] Reference Figures 1 - 3 , a flue gas purification device in the asphalt production process, including a cavity 2 arranged inside a housing 1, a smoke inlet 3 arranged at the lower end of the housing 1, the smoke inlet 3 is communicated with the cavity 2, a first filter screen 6 is arranged inside the cavity, a gas pump 8 is fixedly connected inside the housing 1, the output end of the gas pump 8 is fixedly connected with a pipeline 9, a cavity 10 is arranged inside the housing 1, a flow splitting component is arranged inside the cavity 10, and the pipeline 9 is communicated with the flow splitting component; a cover plate 14, the cover plate 14 is arranged at the upper end of the housing 1, a plurality of through holes 15 are arranged in a rectangular array distribution inside the cover plate 14, a second filter screen 17 is arranged inside the upper end of the cover plate 14, a check valve is arranged inside the pipeline 9, a dissolving liquid is stored inside the cavity 10, the flue gas produced by asphalt production flows to the inside of the cavity 2 through the smoke inlet 3, and is initially filtered by the first filter screen 6, and then the inside of the cavity 2 is suctioned by the gas pump 8, the flue gas initially filtered inside the cavity 2 is suctioned and pressurized, and is transported to the inside of the flow splitting component through the pipeline 9, the pressurized flue gas ejects the dissolving liquid inside the flow splitting component, and at the same time the flow splitting component disperses the flue gas to contact the dissolving liquid, so that the dissolving liquid can fully contact the flue gas, and the harmful substances in the flue gas are dissolved or absorbed by the dissolving liquid to achieve secondary purification, the flue gas after secondary purification flows upward from inside the dissolving liquid and flows out of the housing 1 through the plurality of through holes 15, and during the process of the flue gas flowing out of the housing 1, it is filtered again by the second filter screen 17.
[0021] A chute 4 is arranged through one side of the housing 1, a plate frame 5 is slidably connected inside the chute 4, and the inner wall of the plate frame 5 is fixedly connected with the side wall of the first filter screen 6. When the first filter screen 6 needs to be replaced and cleaned, the operator can pull out the plate frame 5 from inside the chute 4 to replace and clean the first filter screen 6.
[0022] A notch 7 is arranged at the inner top of the cavity 2, the input end of the gas pump 8 is communicated with the notch 7, and the gas pump 8 suctions the flue gas inside the cavity 2 through the notch 7, and the flue gas flows into the gas pump 8 through the notch 7.
[0023] The flow splitting component includes a plate 11, the plate 11 is fixedly connected with the inner bottom of the cavity 10 through bolts, a chamber 12 is arranged inside the plate 11, and the pipeline 9 is communicated with the lower end inside the chamber 12. The pipeline 9 transports the flue gas pressurized by the gas pump 8 to the inside of the chamber 12.
[0024] A plurality of holes 13 are arranged in a rectangular array distribution at the upper end of the plate 11, the holes 13 are communicated with the upper end inside the chamber 12, and the flue gas flowing inside the chamber 12 flows out through the plurality of holes 13, so that the flue gas is dispersed and flows, and at the same time the pressurized flue gas ejects the dissolving liquid inside the chamber 12 from the holes 13.
[0025] A groove 16 is provided at the upper end of the cover plate 14, and the side wall of the second filter screen 17 is fixedly connected to the inner wall of the groove 16, and the installation position of the second filter screen 17 is positioned through the groove 16.
[0026] In the present utility model, the flue gas produced by asphalt production flows into the interior of the cavity 2 through the smoke inlet 3, and is initially filtered by the first filter screen 6. Then, the interior of the cavity 2 is sucked by the air pump 8, and the flue gas flows into the interior of the air pump 8 through the notch 7. The air pump 8 pressurizes the flue gas, and then the pressurized flue gas is transported into the interior of the chamber 12 through the pipeline 9. The pressurized flue gas ejects the dissolving liquid in the chamber 12 from the holes 13. At the same time, the flue gas flowing in the chamber 12 disperses and flows out through the plurality of holes 13, so that the dissolving liquid can fully contact the flue gas, and the harmful substances in the flue gas are dissolved or absorbed by the dissolving liquid to achieve secondary purification.
[0027] The flue gas after secondary purification flows upward from the interior of the dissolving liquid and flows out of the housing 1 through the plurality of holes and grooves 15. During the process of the flue gas flowing out of the housing 1, it is filtered again by the second filter screen 17.
[0028] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.
Claims
1. A flue gas purification device in the asphalt production process, characterized in that, including A cavity (2) is arranged inside a housing (1). An inlet for smoke (3) is arranged at the lower end of the housing (1). The inlet for smoke (3) is communicated with the cavity (2). A first filter screen (6) is arranged inside the cavity. An air pump (8) is fixedly connected inside the housing (1). An output end of the air pump (8) is fixedly connected with a pipeline (9). A cavity (10) is arranged inside the housing (1). A flow splitting component is arranged inside the cavity (10). The pipeline (9) is communicated with the flow splitting component; A cover plate (14) is arranged at the upper end of the housing (1). A plurality of through holes (15) are arranged in a rectangular array inside the cover plate (14). A second filter screen (17) is arranged inside the upper end of the cover plate (14).
2. The flue gas purification device in the asphalt production process according to claim 1, characterized in that, A chute (4) is arranged through one side of the housing (1). A plate frame (5) is slidably connected inside the chute (4). A side wall of the plate frame (5) is fixedly connected with a side wall of the first filter screen (6).
3. The flue gas purification device in the asphalt production process according to claim 1, characterized in that, A notch (7) is arranged at the inner top of the cavity (2). An input end of the air pump (8) is communicated with the notch (7).
4. A flue gas purification device in the asphalt production process according to claim 1, characterized in that, The flow splitting component includes a plate (11). The plate (11) is fixedly connected with the inner bottom of the cavity (10) by bolts. A chamber (12) is arranged inside the plate (11). The pipeline (9) is communicated with the inside of the lower end of the chamber (12).
5. The flue gas purification device in the asphalt production process according to claim 4, characterized in that, A plurality of holes (13) are arranged in a rectangular array at the upper end of the plate (11). The holes (13) are communicated with the inside of the upper end of the chamber (12).
6. The flue gas purification device in the asphalt production process according to claim 1, wherein A groove (16) is arranged at the upper end of the cover plate (14). A side wall of the second filter screen (17) is fixedly connected with an inner wall of the groove (16).