A flue gas purification device for environmental protection

Abstract

The utility model relates to exhaust treatment technical field, and disclose a kind of flue gas purification device for environmental protection, including base, the top of base is provided with spraying mechanism, the top of base is provided with the filter mechanism of being handled with spraying mechanism cooperation to flue gas, the spraying mechanism includes the purification cylinder fixedly connected in base top, water inlet pipe is fixedly connected on the lateral wall of purification cylinder, the water inlet pipe end away from purification cylinder is fixedly connected with the water inlet end of water pump, the water outlet end of water pump is fixedly connected with water outlet pipe, the water outlet pipe end away from water pump is fixedly connected with inverse spray head, the filter mechanism includes the support bracket fixedly connected in base top, the top of support bracket is fixedly installed with purification tank.This flue gas purification device for environmental protection has the advantages of efficient flue gas purification, reasonable structure and easy maintenance.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically to a flue gas purification device for environmental protection. Background Technology

[0002] Waste gas treatment, also known as waste gas purification, mainly refers to the treatment of industrial waste gases generated in industrial sites, such as particulate matter, flue gas, odorous gases, and toxic and harmful gases. Currently, there are various methods for waste gas treatment, among which spraying devices are a relatively common treatment method. Spraying devices pass the waste gas into a spraying tower and use water or other spraying liquids to spray the waste gas to remove particulate matter and some harmful gases.

[0003] However, existing spraying devices have some shortcomings in use. Spraying devices consume a large amount of water during operation, and if the water after spraying cannot be recycled, it will cause serious water waste. In terms of filtration, existing exhaust gas treatment devices are usually equipped with filter cartridges to further remove harmful substances from the exhaust gas. However, these filter cartridges are prone to clogging during use and need to be replaced frequently, which not only increases the maintenance cost of the equipment but also leads to increased equipment downtime and affects production efficiency. Therefore, there is an urgent need for an environmentally friendly flue gas purification device to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a flue gas purification device for environmental protection, which has the advantages of high-efficiency spraying and filter element backflushing self-cleaning, and solves the problems of poor spraying effect, water waste and cumbersome filter element maintenance of existing spraying devices.

[0006] (II) Technical Solution

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A flue gas purification device for environmental protection includes a base, a spray mechanism is provided at the top of the base, and a filter mechanism that cooperates with the spray mechanism to treat the flue gas is provided at the top of the base. The spray mechanism includes a purification cylinder fixedly connected to the top of the base, an inlet pipe fixedly connected to the side wall of the purification cylinder, a water pump inlet fixedly connected to the end of the inlet pipe away from the purification cylinder, an outlet pipe fixedly connected to the outlet end of the water pump, and a reverse nozzle fixedly connected to the end of the outlet pipe away from the water pump. The filter mechanism includes a support bracket fixedly connected to the top of the base, a purification box fixedly installed at the top of the support bracket, an installation plate fixedly connected to the inner wall of the purification box, a filter cartridge fixedly connected to the bottom of the installation plate, a hanging bracket fixedly connected to the inner wall of the purification box, and an air nozzle fixedly installed at the bottom of the hanging bracket.

[0008] The beneficial effects of this utility model are:

[0009] This flue gas purification device for environmental protection boasts advantages such as high-efficiency flue gas purification, reasonable structure, and ease of maintenance. The spray mechanism provides initial purification of the incoming flue gas by spraying water in reverse through reverse nozzles into the flue gas inlet pipe, ensuring full contact between particulate matter in the flue gas and water to form droplets, thereby achieving initial dust removal and cooling of the flue gas. The filtration mechanism further purifies the flue gas, with the filter cartridge effectively filtering out fine particulate matter and harmful gases. Air nozzles can backflush the filter cartridge, preventing clogging, extending its service life, and improving purification efficiency.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, a fan is fixedly installed on the top of the purification box, and an air duct is fixedly connected to the air outlet of the fan. The end of the air duct away from the fan is fixedly connected to the interface of the air nozzle.

[0012] The beneficial effects of adopting the above-mentioned further solution are that the fan can provide a stable airflow, which delivers air to the air nozzle through the air duct, so that the air nozzle can effectively backflush the filter cartridge, remove dust from the surface of the filter cartridge in a timely manner, maintain the air permeability of the filter cartridge, improve the purification efficiency, and at the same time reduce the operating resistance of the equipment and reduce energy consumption.

[0013] Furthermore, a collection hopper is fixedly connected to the bottom of the purification box, and a storage box is provided at the bottom of the collection hopper.

[0014] The beneficial effects of adopting the above-mentioned further solution are that the collection hopper can collect the dust generated during the purification process, and the storage box provides a temporary storage space for the collected dust, which is convenient for regular cleaning and transportation, thereby improving the environmental performance and maintenance convenience of the equipment.

[0015] Furthermore, the top of the purification cylinder is fixedly connected to a smoke inlet pipe, and the end of the reverse nozzle away from the water outlet pipe extends into the smoke inlet pipe.

[0016] The beneficial effect of adopting the above-mentioned further solution is that the reverse nozzle extends into the flue gas inlet pipe, which can spray water more directly onto the incoming flue gas, enhance the mixing effect of water and flue gas, improve the efficiency of dust removal and cooling, and ensure that the flue gas is effectively pretreated before entering the subsequent purification stage.

[0017] Furthermore, an exhaust pipe is fixedly connected to the side wall of the purification box, and a filter port communicating with the filter cartridge is opened inside the mounting plate, and there are several filter cartridges.

[0018] The beneficial effects of adopting the above-mentioned further solution are that the design of multiple filter cartridges increases the filtration area and improves the filtration efficiency, which can better remove harmful substances in the flue gas and enable the purified flue gas to meet environmental emission standards. At the same time, multiple filter cartridges can disperse the flow of flue gas, reduce the load on each filter cartridge, extend the service life of the filter cartridges, and reduce the maintenance cost of the equipment.

[0019] Furthermore, a delivery pipe is fixedly connected to the side wall of the purification cylinder, and the end of the delivery pipe away from the purification cylinder is fixedly connected to the purification box. A droplet separator is provided at the end of the delivery pipe inside the purification cylinder.

[0020] The beneficial effects of adopting the above-mentioned further solution are that the conveying pipe can transport the flue gas, after spray treatment in the purification cylinder, to the purification chamber for further purification, ensuring continuous flow of the flue gas during the purification process. The droplet separator can separate droplets in the flue gas, preventing droplets from entering the purification chamber and affecting the filtration effect of the filter cartridge. It also reduces the corrosion of downstream equipment by droplets, improving the stability and reliability of the equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the purification cylinder in this utility model;

[0023] Figure 3 This is a cross-sectional view of the purification box in this utility model.

[0024] In the diagram: 1. Base; 2. Purification cylinder; 3. Inlet pipe; 4. Water pump; 5. Outlet pipe; 6. Reverse nozzle; 7. Support bracket; 8. Purification box; 9. Mounting plate; 10. Filter cartridge; 11. Hanging bracket; 12. Air nozzle; 13. Fan; 14. Air duct; 15. Collection hopper; 16. Storage box; 17. Smoke inlet pipe; 18. Exhaust pipe; 19. Delivery pipe; 20. Droplet separator. Detailed Implementation

[0025] 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.

[0026] In the embodiments, by Figure 1-3 This invention discloses a flue gas purification device for environmental protection. The device includes a base 1, a spray mechanism at the top of the base 1, and a filter mechanism at the top of the base 1 that works in conjunction with the spray mechanism to treat the flue gas. The spray mechanism includes a purification cylinder 2 fixedly connected to the top of the base 1. A water inlet pipe 3 is fixedly connected to the side wall of the purification cylinder 2. A water pump 4 is fixedly connected to the water inlet end of the water inlet pipe 3 away from the purification cylinder 2. A water outlet pipe 5 is fixedly connected to the water outlet end of the water pump 4. A reverse nozzle 6 is fixedly connected to the end of the water outlet pipe 5 away from the water pump 4.

[0027] In this embodiment, in actual use, the top of the purification cylinder 2 is fixedly connected to the flue gas inlet pipe 17, and the end of the reverse nozzle 6 away from the water outlet pipe 5 extends into the flue gas inlet pipe 17. The inner bottom wall of the purification cylinder 2 is filled with spray liquid, which is transported to the reverse nozzle 6 by the water pump 4. The reverse nozzle 6 can spray water more directly onto the incoming flue gas, enhance the mixing effect of water and flue gas, improve the efficiency of dust removal and cooling, and ensure that the flue gas is effectively pretreated before entering the subsequent purification stage.

[0028] The choice of spray liquid depends on the composition of the flue gas and the purification target. Common spray liquids include alkaline solutions, magnesium hydroxide slurry, hydrogen peroxide solutions, solutions containing catalysts, hygroscopic solutions, and composite formulation spray liquids.

[0029] It should be noted that the inlet pipe 3 and outlet pipe 5 enable the spray liquid to be recycled, reducing costs. The inlet pipe 3 is fixedly connected to a water supply pipe, and the outlet pipe 5 is fixedly connected to a sewage discharge pipe. Solenoid valves are installed on the outside of the water supply pipe, the sewage discharge pipe, and the outlet pipe 5. After the spray liquid has circulated for a certain period of time, the solenoid valves and the water pump 4 work together to ensure that the used spray liquid is smoothly discharged through the sewage discharge pipe and that new spray liquid is injected in time through the water supply pipe, thereby ensuring the continuity and efficiency of the purification process.

[0030] Specifically, refer to Figure 3 The filtration mechanism includes a support bracket 7 fixedly connected to the top of the base 1. A purification box 8 is fixedly installed on the top of the support bracket 7. An installation plate 9 is fixedly connected to the inner wall of the purification box 8. A filter cartridge 10 is fixedly connected to the bottom of the installation plate 9. An exhaust pipe 18 is fixedly connected to the side wall of the purification box 8. A support plate is also provided on the inner wall of the purification box 8 to provide support for the filter cartridge 10. A filter port communicating with the filter cartridge 10 is opened inside the installation plate 9.

[0031] In this embodiment, in actual use, there are several filter cartridges 10. After the flue gas is filtered by the filter cartridges 10, it passes through the filter port and is discharged through the exhaust pipe 18. The design of multiple filter cartridges 10 increases the filtration area and improves the filtration efficiency, which can better remove harmful substances in the flue gas and make the purified flue gas meet the environmental emission standards. At the same time, multiple filter cartridges 10 can distribute the flow of flue gas, reduce the load on each filter cartridge 10, extend the service life of the filter cartridge, and reduce the maintenance cost of the equipment.

[0032] Specifically, refer to Figure 3 A hanging bracket 11 is fixedly connected to the inner wall of the purification box 8. An air nozzle 12 is fixedly installed at the bottom of the hanging bracket 11. A fan 13 is fixedly installed at the top of the purification box 8. An air duct 14 is fixedly connected to the air outlet of the fan 13. The end of the air duct 14 away from the fan 13 is fixedly connected to the interface of the air nozzle 12.

[0033] In this embodiment, in actual use, the fan 13 can provide a stable airflow, and deliver air to the air nozzle 12 through the air duct 14, so that the air nozzle 12 can effectively backflush the filter cartridge 10, remove dust from the surface of the filter cartridge in time, maintain the air permeability of the filter cartridge, improve the purification efficiency, and at the same time reduce the operating resistance of the equipment and reduce energy consumption.

[0034] A collection hopper 15 is fixedly connected to the bottom of the purification box 8. A storage box 16 is set at the bottom of the collection hopper 15. The collection hopper 15 can collect the dust generated during the purification process, while the storage box 16 provides a temporary storage space for the collected dust, which is convenient for regular cleaning and transportation, thus improving the environmental performance and maintenance convenience of the equipment.

[0035] Specifically, refer to Figure 2 A conveying pipe 19 is fixedly connected to the side wall of the purification cylinder 2. The end of the conveying pipe 19 away from the purification cylinder 2 is fixedly connected to the purification box 8. A droplet separator 20 is provided at the end of the conveying pipe 19 located inside the purification cylinder 2.

[0036] In this embodiment, in actual use, the conveying pipe 19 can transport the flue gas that has undergone spray treatment in the purification cylinder 2 to the purification box 8 for further purification, ensuring that the flue gas can flow continuously during the purification process. The droplet separator 20 can separate the droplets in the flue gas, preventing the droplets from entering the purification box 8 and affecting the filtration effect of the filter cartridge 10. It also reduces the corrosion of downstream equipment by the droplets, improving the stability and reliability of the equipment.

[0037] Working principle:

[0038] Flue gas enters the purification cylinder 2 through the flue gas inlet pipe 17. At this time, the water pump 4 starts and draws out the spray liquid injected into the bottom wall of the purification cylinder 2 through the water inlet pipe 3, and then delivers it to the reverse nozzle 6 through the water outlet pipe 5. The reverse nozzle 6 is located inside the flue gas inlet pipe 17. The spray liquid is sprayed out from the reverse nozzle 6 and comes into contact with the flue gas in the opposite direction. This reverse spraying method can make the water and flue gas fully mixed. Particulate matter in the flue gas, such as dust and impurities, is captured and dissolved by the spray liquid, thereby achieving the effect of dust removal. At the same time, the spray liquid can also absorb the heat in the flue gas and play a role in cooling, so that the flue gas is effectively pretreated before entering the subsequent purification stage.

[0039] After being used in the purification cylinder 2, the spray liquid flows back to the inner bottom wall of the purification cylinder 2 for recycling, thereby reducing costs. However, after the spray liquid has been recycled for a certain period of time, its purification capacity will decrease. At this time, by controlling the coordinated operation of the solenoid valve and the water pump 4, the solenoid valves on the water supply pipe and the water outlet pipe 5 are closed, and the solenoid valve on the drain pipe is opened, allowing the used spray liquid to be smoothly discharged from the purification cylinder 2 through the drain pipe. After the drain is completed, the solenoid valve on the water supply pipe is opened again, and new spray liquid is injected into the purification cylinder 2 in a timely manner through the water supply pipe. At the same time, the solenoid valve on the drain pipe is closed, restoring the recycling of the spray liquid and ensuring the continuity and efficiency of the purification process.

[0040] After pretreatment by spraying, the flue gas enters the purification chamber 8 through the conveying pipe 19. A droplet separator 20 is installed at one end of the conveying pipe 19 inside the purification cylinder 2. This separator separates droplets from the flue gas, preventing them from entering the purification chamber 8 and affecting the filtration effect of the filter cartridge 10. It also reduces the corrosion of downstream equipment by the droplets. After entering the purification chamber 8, the flue gas first passes through the filter cartridge 10. As the flue gas passes through the filter cartridge 10, it further removes particulate matter and other contaminants, ensuring that the purified flue gas meets environmental emission standards. The fan 13 provides a stable airflow, which is then transported to the purification chamber 8 through the duct 14. The air nozzle 12 enables the filter cartridge 10 to be backflushed. During backflushing, air is blown from the inside of the filter cartridge 10 to the outside, which can remove dust from the surface of the filter cartridge in time and maintain the air permeability of the filter cartridge. During the backflushing process, the dust on the surface of the filter cartridge 10 is blown off and falls into the collection hopper 15. The collection hopper 15 can collect the dust generated during the purification process. The storage box 16 provides a temporary storage space for the collected dust, which is convenient for regular cleaning and transportation, thus improving the environmental performance and maintenance convenience of the equipment.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0042] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] 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 purification device for environmental protection, comprising a base (1), characterized in that: The top of the base (1) is provided with a spraying mechanism, and the top of the base (1) is provided with a filter mechanism that works in conjunction with the spraying mechanism to treat the flue gas. The spraying mechanism includes a purification cylinder (2) fixedly connected to the top of the base (1), an inlet pipe (3) fixedly connected to the side wall of the purification cylinder (2), an inlet end of the inlet pipe (3) away from the purification cylinder (2) fixedly connected to the inlet end of the water pump (4), an outlet pipe (5) fixedly connected to the outlet end of the water pump (4), and a reverse spray head (6) fixedly connected to the outlet pipe (5) away from the water pump (4). The filtration mechanism includes a support bracket (7) fixedly connected to the top of the base (1), a purification box (8) fixedly installed on the top of the support bracket (7), an installation plate (9) fixedly connected to the inner wall of the purification box (8), a filter cartridge (10) fixedly connected to the bottom of the installation plate (9), a hanging bracket (11) fixedly connected to the inner wall of the purification box (8), and an air nozzle (12) fixedly installed at the bottom of the hanging bracket (11).

2. The flue gas purification device for environmental protection according to claim 1, characterized in that: A fan (13) is fixedly installed on the top of the purification box (8). A duct (14) is fixedly connected to the air outlet of the fan (13). The end of the duct (14) away from the fan (13) is fixedly connected to the interface of the air nozzle (12).

3. The flue gas purification device for environmental protection according to claim 1, characterized in that: The bottom of the purification box (8) is fixedly connected to a collection hopper (15), and a storage box (16) is provided at the bottom of the collection hopper (15).

4. The flue gas purification device for environmental protection according to claim 1, characterized in that: The top of the purification cylinder (2) is fixedly connected to the smoke inlet pipe (17), and the end of the reverse nozzle (6) away from the water outlet pipe (5) extends into the smoke inlet pipe (17).

5. The flue gas purification device for environmental protection according to claim 1, characterized in that: An exhaust pipe (18) is fixedly connected to the side wall of the purification box (8), and a filter port communicating with the filter element cylinder (10) is opened inside the mounting plate (9). The number of filter element cylinders (10) is several.

6. The flue gas purification device for environmental protection according to claim 1, characterized in that: A delivery pipe (19) is fixedly connected to the side wall of the purification cylinder (2). The end of the delivery pipe (19) away from the purification cylinder (2) is fixedly connected to the purification box (8). A droplet separator (20) is provided at the end of the delivery pipe (19) inside the purification cylinder (2).

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