A flue gas purification device for black liquor adsorption

Abstract

The utility model relates to bitumen smoke black law adsorption technical field, solved the technical problem that the Venturi reactor long time use can take place the blockage, especially to a kind of black law adsorption flue gas purification device, including the spray cooling tower for carrying out the cooling of the exhaust gas of discharge, the spray cooling tower lower side is connected with the drainage pump of cooperative use, the spray cooling tower one side is connected with Venturi reactor by pipeline, the Venturi reactor gas outlet end is connected with black law adsorption dust collector, black law adsorption dust collector one side is connected with exhaust fan, and the exhaust fan gas outlet end is connected with incineration bin. The utility model is due to the setting of automatic cleaning structure, can remove the reactor in clogging in real time, avoid artificial disassembly maintenance, reduce maintenance frequency, improve equipment continuous operation ability, reduce the production interruption due to blockage, to improve overall production efficiency, reduce artificial maintenance cost and equipment wear and tear simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of black adsorption technology for asphalt fume, and in particular to a flue gas purification device for black adsorption. Background Technology

[0002] Black adsorption is a technology that uses raw materials (such as carbon powder and calcined coke powder) as adsorbents to remove pollutants such as asphalt fumes and tar from industrial waste gas through physical adsorption. Its core lies in achieving efficient purification through thorough mixing of the gas and solid phases, and the adsorbent can be recycled without secondary pollution. However, in existing black adsorption equipment, one method uses a Venturi reactor for carbon powder feeding. Because the flue gas needs to be cooled by water spraying before entering the Venturi reactor's inlet, and because the middle section of the Venturi reactor is relatively narrow, it is prone to blockage after prolonged use. This necessitates operator disassembly and maintenance, which reduces the normal operation of the equipment and thus lowers production efficiency. To address these issues, this application provides a flue gas purification device for black adsorption. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a flue gas purification device for black adsorption, which solves the technical problem of blockage in Venturi reactors after prolonged use, thereby reducing maintenance frequency and improving production efficiency.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a flue gas purification device for black adsorption, comprising a spray cooling tower for cooling the emitted exhaust gas, a drainage pump connected to the bottom of the spray cooling tower, a Venturi reactor connected to one side of the spray cooling tower via a pipe, a black adsorption dust collector connected to the outlet of the Venturi reactor, an exhaust fan connected to one side of the black adsorption dust collector, and an incineration chamber connected to the outlet of the exhaust fan. A fixed base is fixedly connected inside the outlet end of the Venturi reactor, and a return spring is fixedly connected to the end of the fixed base. A scraping spring is slidably connected inside the narrow part of the Venturi reactor, and a guide handle is fixedly connected to one end of the scraping spring. The inner wall of the cavity near the fixed base of the guide handle is connected to the end of the return spring.

[0005] Preferably, the outer surface of the guide handle does not adhere to the inner wall of the Venturi reactor, and a section of the end of the fixing seat is slidably connected inside the cavity of the guide handle.

[0006] Preferably, a toner conduit is connected to the top of the narrow neck of the Venturi reactor, and a toner storage bin is connected to the feed end of the toner conduit, which is installed above the Venturi reactor.

[0007] Preferably, a sliding drawer is slidably connected to the top of the spray cooling tower, a dispersing frame is fixedly connected to the inside of the sliding drawer, and an inclined plate is fixedly connected to the slots of the dispersing frame. A spray head with its water inlet end connected to an external water pump is installed inside the upper part of the spray cooling tower.

[0008] Preferably, an incineration pump is installed at the top of the incineration chamber, the liquid outlet of the incineration pump extends into the interior of the incineration chamber and is equipped with an igniter, a U-shaped plate is fixedly connected in the middle of the interior of the incineration chamber, and a chimney is connected to the gas outlet of the incineration chamber.

[0009] Preferably, the outlet end of the Venturi reactor extends into the interior of the black adsorption dust collector, and a filter bag is fitted onto the outlet end of the Venturi reactor.

[0010] By employing the above technical solution, this utility model provides a flue gas purification device for black adsorption, which has at least the following beneficial effects: 1. Due to the automatic cleaning structure, this utility model can remove blockages in the reactor in real time, avoid manual disassembly and maintenance, reduce maintenance frequency, improve the continuous operation capability of the equipment, reduce production interruptions caused by blockages, thereby improving overall production efficiency, while reducing manual maintenance costs and equipment wear and tear.

[0011] 2. This utility model optimizes the steam treatment settings during the cooling process, preventing harmful substances from clogging the spray system, promoting thorough mixing of flue gas and adsorbent, improving purification efficiency, and reducing particulate emissions through high-efficiency filtration, thereby reducing the risk of secondary pollution and ensuring stable operation of the purification system and compliance with emission standards.

[0012] 3. Due to the RTO incineration treatment structure, this utility model can incinerate the volatile organic compounds remaining in the cooled and filtered exhaust gas to generate carbon dioxide and water, thereby making the emission of industrial exhaust gas safer and greener, and ensuring the smooth operation of industrial production. Attached Figure Description

[0013] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0014] In the attached diagram: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the installation structure of the black adsorption dust collector of this utility model; Figure 3 This is a schematic diagram of the filter bag installation structure of this utility model; Figure 4This is a schematic diagram of the inclined plate installation structure of this utility model; Figure 5 This is a schematic diagram of the scraping spring mounting structure of this utility model; Figure 6 This is a schematic diagram of the U-shaped plate installation structure of this utility model.

[0015] In the diagram: 1. Spray cooling tower; 2. Drainage pump; 3. Venturi reactor; 4. Incineration chamber; 5. Black adsorption dust collector; 6. Exhaust fan; 7. Guide handle; 8. Fixing base; 9. Return spring; 10. Scraping spring; 11. Carbon powder conduit; 12. Carbon powder storage chamber; 13. Sliding drawer; 14. Dispersion rack; 15. Inclined plate; 16. Spray head; 17. Incineration pump; 18. Filter bag; 19. Ignition device; 20. U-shaped plate; 21. Chimney. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Because the flue gas needs to be cooled by water spray before entering the inlet of the Venturi reactor, and because the middle section of the Venturi reactor is relatively narrow, it is prone to blockage after prolonged use. This necessitates operator disassembly and maintenance, which reduces the normal operation of the equipment and consequently lowers production efficiency. Please refer to [reference needed]. Figures 1-6 This embodiment provides a flue gas purification device for black adsorption, which solves the technical problem of blockage of Venturi reactors after long-term use. The device includes a spray cooling tower 1 for cooling the exhaust gas. A drainage pump 2 is connected to the bottom of the spray cooling tower 1. A Venturi reactor 3 is connected to one side of the spray cooling tower 1 through a pipe. A black adsorption dust collector 5 is connected to the outlet of the Venturi reactor 3. An exhaust fan 6 is connected to one side of the black adsorption dust collector 5. An incineration chamber 4 is connected to the outlet of the exhaust fan 6. The exhaust gas is cooled by a spray cooling tower 1. Carbon powder is added to the cooled exhaust gas through a venturi reactor 3 to adsorb tar molecules in the exhaust gas. The particles generated after carbon powder adsorption in the exhaust gas are removed by a black adsorption dust collector 5. The removed particles can be granulated and recycled through relevant processes. The exhaust fan 6 achieves systematic air circulation. The filtered exhaust gas is incinerated through an incineration chamber 4 to burn off any remaining impurities in the exhaust gas, so that the exhaust gas can be discharged more cleanly.

[0018] In the existing flue gas treatment equipment for black adsorption, the Venturi reactor 3 is a critical component. However, due to its structural characteristics, its narrow neck is very prone to clogging, and the subsequent cleaning process is extremely complex. This not only reduces the overall processing efficiency but also shortens the service life of the Venturi reactor 3 due to frequent disassembly. A fixed base 8 is fixedly connected inside the outlet end of the Venturi reactor 3, and a return spring 9 is fixedly connected to the end of the fixed base 8. A scraping spring 10 is slidably connected inside the narrow section of the Venturi reactor 3, and a guide handle 7 is fixedly connected to one end of the scraping spring 10. The inner wall of the cavity near the fixed base 8 of the guide handle 7 is connected to the end of the return spring 9.

[0019] To prevent the guide handle 7 from blocking airflow, the airflow is guided. The outer surface of the guide handle 7 does not adhere to the inner wall of the Venturi reactor 3, and a section of the end of the fixing seat 8 is slidably connected to the cavity inside the guide handle 7.

[0020] For feeding toner, a toner conduit 11 is connected to the top of the narrow neck of the Venturi reactor 3. The inlet end of the toner conduit 11 is connected to a toner storage bin 12, which is installed above the Venturi reactor 3.

[0021] To prevent the hot steam generated during cooling from rising and carrying a small amount of tar that could clog the spray head 16, a sliding drawer 13 is slidably connected to the top of the spray cooling tower 1. A dispersion rack 14 is fixedly connected to the inside of the sliding drawer 13. Inclined plates 15 are fixedly connected to the slots of the dispersion rack 14. A spray head 16 with its water inlet connected to an external water pump is installed inside the upper part of the spray cooling tower 1.

[0022] To incinerate the exhaust gas after black blast furnace treatment, an incineration pump 17 is installed at the top of the incineration chamber 4. The liquid outlet of the incineration pump 17 extends into the interior of the incineration chamber 4 and is equipped with an igniter 19. A U-shaped plate 20 is fixedly connected in the middle of the interior of the incineration chamber 4, and a chimney 21 is connected to the gas outlet of the incineration chamber 4.

[0023] The outlet of the Venturi reactor 3 extends into the interior of the black adsorption dust collector 5, and a filter bag 18 is fitted onto the outlet of the Venturi reactor 3 to filter particles generated by the combination of carbon powder and harmful substances in the exhaust gas.

[0024] During operation, the exhaust gas generated enters the spray cooling tower 1. The spray nozzles 16 at the top of the tower cool the exhaust gas, and the resulting steam rises and passes through the inclined plates 15 inside the slots of the dispersion rack 14. The inclined plates 15 then block tar and other substances in the steam, preventing them from clogging the spray nozzles 16. The exhaust gas then continues into the Venturi reactor 3. Due to the narrow middle section of the Venturi reactor 3, the airflow velocity increases, thereby adsorbing the toner inside the carbon storage bin 12. Carbon powder is used to achieve black adsorption. During this process, when the middle section of the Venturi reactor 3 becomes blocked, the gas pressure inside will increase, thereby accelerating the flow rate. At that time, the guide handle 7 will be pushed, and the guide handle 7 will drive the scraping spring 10 fixedly connected to its end to move in the middle section of the Venturi reactor 3, thereby scraping the blockage inside the Venturi reactor 3. After the blockage is scraped off, the air circulation inside the Venturi reactor 3 will be restored, and the guide handle 7 will also return to its original position, thereby achieving automatic cleaning of the Venturi reactor 3, reducing the frequency of maintenance, reducing production costs, and improving production efficiency. During operation, the filter bag 18 filters the exhaust gas treated by the black process, filtering out the carbon powder after adsorbing impurities. The remaining organic and hydrocarbon impurities in the filtered exhaust gas will be incinerated in the incineration chamber 4. The incineration pump 17 draws in a mixture of natural gas and oxygen from the outside and injects it into the incineration chamber 4, where it is ignited by the igniter 19. Since the incineration chamber 4 is a sealed space, the natural gas must be mixed with oxygen to prevent ignition and combustion difficulties. The exhaust gas inside the incineration chamber 4 enters the other side of the incineration chamber 4 through the groove at the top of the U-shaped plate 20. During this process, the exhaust gas is incinerated by the ignited natural gas flame, which burns the hydrocarbons and organic impurities in the exhaust gas. Incineration can burn organic matter into carbon dioxide and water, making the discharged exhaust gas cleaner. The entire equipment operates systematically, using multiple exhaust gas treatment methods such as cooling, black process, and incineration to ensure that industrial exhaust gas is cleaner and safer, making industrial production more reassuring.

[0025] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flue gas cleaning device for black liquor adsorption, comprising a spray cooling tower (1) for cooling the emitted exhaust gas, characterized in that: The spray cooling tower (1) is connected to a drainage pump (2) for use. A Venturi reactor (3) is connected to one side of the spray cooling tower (1) through a pipe. A black adsorption dust collector (5) is connected to the outlet of the Venturi reactor (3). An exhaust fan (6) is connected to one side of the black adsorption dust collector (5). An incineration chamber (4) is connected to the outlet of the exhaust fan (6). The Venturi reactor (3) has a fixed seat (8) inside the outlet end, and a return spring (9) is fixedly connected to the end of the fixed seat (8). The narrow part of the Venturi reactor (3) has a scraping spring (10) inside the slidably connected. One end of the scraping spring (10) is fixedly connected to a guide handle (7), and the inner wall of the cavity near the fixed seat (8) of the guide handle (7) is connected to the end of the return spring (9).

2. A flue gas cleaning device for black liquor adsorption according to claim 1, characterized in that: The outer surface of the guide handle (7) does not fit against the inner wall of the Venturi reactor (3), and a section of the end of the fixed seat (8) is slidably connected inside the cavity of the guide handle (7).

3. A flue gas cleaning device for black liquor adsorption according to claim 1, characterized in that: The Venturi reactor (3) has a toner conduit (11) connected to the top of its narrow neck. The toner conduit (11) has a toner storage chamber (12) connected to its feed end. The toner storage chamber (12) is installed above the Venturi reactor (3).

4. A flue gas cleaning device for black liquor adsorption according to claim 1, characterized in that: A sliding drawer (13) is slidably connected above the spray cooling tower (1), and a dispersing rack (14) is fixedly connected inside the sliding drawer (13). An inclined plate (15) is fixedly connected in the slots of the dispersing rack (14). A spray head (16) with its water inlet end connected to an external water pump is installed inside the spray cooling tower (1).

5. A flue gas cleaning device for black liquor adsorption according to claim 1, characterized in that: The top of the incineration chamber (4) is equipped with an incineration pump (17), the liquid outlet of the incineration pump (17) extends into the interior of the incineration chamber (4) and is equipped with an igniter (19), a U-shaped plate (20) is fixedly connected in the middle of the interior of the incineration chamber (4), and a chimney (21) is connected to the gas outlet of the incineration chamber (4).

6. A flue gas cleaning device for black liquor adsorption according to claim 1, characterized in that: The outlet of the Venturi reactor (3) extends into the interior of the black adsorption dust collector (5), and a filter bag (18) is fitted onto the outlet of the Venturi reactor (3).

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