An integrated structure equipment for the coordinated treatment of multiple pollutants in boiler flue gas emissions

Abstract

The utility model discloses an integrated structure equipment for the coordinated treatment of multiple pollutants in boiler flue gas emissions, including an air inlet on one side of a spray treatment tank, and the air inlet on one side of the spray treatment tank is connected to an air inlet fan, an air outlet is provided on the upper end of the spray treatment tank, a neutralizing liquid tank is provided inside the end of the spray treatment tank close to the air inlet fan, and a convection spray structure is provided inside the spray treatment tank, and harmful substances in the flue gas are neutralized by the convection spray structure. In the integrated structure equipment for the coordinated treatment of multiple pollutants in boiler flue gas emissions, when the harmful gases produced during the production process are drawn into the interior of the spray treatment tank through the air inlet fan, the drawn flue gas will be blocked by a baffle plate, so that the flue gas cannot be quickly sent out from the discharge port of the spray treatment tank, and the neutralizing liquid sprayed from the atomizing spray pipe makes the neutralizing liquid fully contact and react with the flue gas, thereby improving the treatment and adsorption effect of the harmful gases in the flue gas.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment, in particular to an integrated structural device for the coordinated treatment of multiple pollutants emitted by boiler flue gas. Background Art

[0002] With the development of industrialization, various processing industries have sprung up like mushrooms after rain. Among them, chemical industry, steel mills, metal processing, thermal power plants, oil refining and other industries all need to use boilers in the process of production and processing. The products produced are heated by boilers. In the process of using boilers for heating, boiler flue gas is inevitably generated. Its emission into the air will cause harm to the atmosphere, soil, plants, buildings, animals, etc. In order to protect the earth's atmospheric environment and people's living environment, the reasonable treatment of harmful gases in the flue gas has become an important measure to control air pollution;

[0003] Most of the existing flue gas treatment devices allow the flue gas to pass through the neutralizing liquid for adsorption and neutralization. The gas passes through the flue gas at a fast speed, and the harmful gases in the flue gas cannot fully react with the neutralizing liquid, which will affect the quality of harmful gas filtration. Utility Model Content

[0004] The purpose of the utility model is to provide an integrated structure device for the coordinated treatment of multiple pollutants in boiler flue gas emissions, so as to solve the problem of insufficient reaction adsorption caused by too fast flue gas passage mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integrated structural device for the coordinated treatment of multiple pollutants in boiler flue gas emissions, comprising an air inlet on one side of a spray treatment tank, and the air inlet on one side of the spray treatment tank is connected to an air inlet fan, an air outlet is provided at the upper end of the spray treatment tank, and the air outlet of the spray treatment tank is connected to an exhaust fan, a neutralizing liquid tank is arranged inside the end of the spray treatment tank close to the air inlet fan, and a convection spray structure is arranged inside the spray treatment tank, and harmful substances in the flue gas are neutralized by the convection spray structure.

[0006] Preferably, the convection spray structure includes an atomizing spray pipe, which is fixedly installed inside a spray treatment tank, and one end of the atomizing spray pipe passes through the outer surface of the spray treatment tank, and the atomizing spray pipe located outside the spray treatment tank is connected to a conveying pipeline, and a baffle plate is fixedly installed inside the spray treatment tank, and the upper end of the baffle plate is inclined, and the baffle plate is located above the atomizing spray pipe.

[0007] By adopting the above technical solution, the baffle plate can allow the flue gas to stay inside the spray treatment tank for a longer time, so that the neutralizing liquid sprayed from the atomizing spray pipe can more fully react and adsorb with the harmful gases in the flue gas. At the same time, the falling neutralizing liquid will flow toward the bottom of the atomizing spray pipe along the inclined surface of the baffle plate, so that the neutralizing liquid returns to the neutralizing liquid tank.

[0008] Preferably, a circulating conveying structure is provided inside the air inlet fan, and the fallen neutralized liquid is reused through the circulating conveying structure.

[0009] By adopting the above technical solution, the fallen neutralization liquid can be effectively collected and used.

[0010] Preferably, the circulating conveying structure includes a conveying pump, which is fixedly installed at the lower end of the spray treatment tank, and one end of the conveying pump penetrates the outer surface of the spray treatment tank, and one side outer surface of the spray treatment tank is connected to the conveying pipeline.

[0011] By adopting the above technical solution, the neutralized liquid falling back into the neutralized liquid tank can be sent out again through the delivery pump, and sprayed out from the atomizing spray pipe through the liquid delivery pipe to achieve recycling.

[0012] Preferably, a material injection port is installed through the side surface of the spray treatment tank, and a sealing cover is threadedly installed at one end of the material injection port away from the spray treatment tank, a pH detector is fixedly installed inside the spray treatment tank, and the pH detector is located at the lower end of the neutralization liquid tank, a stirring rod is rotatably installed inside the spray treatment tank, and a blade is provided at the upper end of the stirring rod, and a stirring blade is provided at one end of the stirring rod away from the atomizing spray pipe.

[0013] By adopting the above technical scheme, the pH value of the neutralization liquid can be detected by a pH detector, and the pH value of the neutralization liquid can be adjusted by adding reagents through the injection port. At the same time, the flue gas sent in by the air inlet fan can drive the stirring rod to rotate and stir the neutralization liquid to prevent precipitation of the neutralization liquid and accelerate the fusion of the added reagents.

[0014] Preferably, a filtering mechanism is fixedly connected to a side of the exhaust fan away from the spray treatment tank, and harmful gases and water mist remaining in the flue gas are filtered out by the filtering mechanism.

[0015] By adopting the above technical solution, the harmful gases and water mist remaining in the smoke can be separated.

[0016] Preferably, the filtering mechanism includes a filter box, a side of the filter box close to the air inlet fan is connected to one end of the exhaust fan, and a sealing end cover is snap-fitted on the outer surface of one side of the filter box, and the sealing end cover and the filter box are fixed with screws, the side of the filter box away from the exhaust fan is connected to the exhaust duct, and a stuffing partition box and a dry filter material partition box are snap-fitted inside the filter box, respectively, and the side surfaces of the dry filter material partition box and the stuffing partition box are in contact with the inner surface of the sealing end cover, and the outer surfaces of the dry filter material partition box and the stuffing partition box are connected to the inner surface of the filter box by sliding friction.

[0017] By adopting the above technical solution, when replacing the packing, it is only necessary to open the sealing end cover, take out the packing partition box and the dry filter material partition box to complete the replacement of the packing.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the boiler flue gas emission multi-pollutant coordinated treatment - integrated structure equipment:

[0019] 1. Boiler combustion provides heat for production and processing. During the process of boiler combustion and heating, a large amount of harmful gases will be mixed into the flue gas. At this time, when the flue gas is drawn into the spray treatment tank through the air inlet fan, the drawn flue gas will be blocked by the baffle plate, so that the flue gas cannot be quickly sent out from the discharge port of the spray treatment tank. Accompanied by the neutralizing liquid sprayed from the atomizing spray pipe, the neutralizing liquid and the flue gas are fully contacted and reacted, which increases the reaction time of the harmful gas in the flue gas and the neutralizing liquid, and improves the treatment effect of the harmful gas in the flue gas;

[0020] 2. The pH value of the neutralizing liquid in the neutralizing liquid tank will change with the increase of usage time. When the pH detector detects that the pH value is not within the set range, the worker needs to open the sealing cover on the outside of the spray treatment tank, feed the reagent from the injection port, and close the sealing cover. Then the air intake fan will feed gas to drive the fan blades at the upper end of the stirring rod to rotate, and fully stir the solution in the neutralizing liquid tank below, so that the pH value of the neutralizing liquid in the neutralizing liquid tank returns to the qualified range, so that the neutralizing liquid can continue to absorb harmful gases in the flue gas;

[0021] 3. The exhaust fan draws the flue gas after spray adsorption from the spray treatment tank and sends it into the interior of the filter box, where it is filtered through the stuffing partition box and the dry filter material partition box. When the stuffing needs to be replaced after a long period of use, the sealing end cover can be removed, and the stuffing partition box and the dry filter material partition box can be taken out from the filter box. The stuffing can be easily replaced, thereby strengthening the filtration of residual harmful gases in the flue gas and ensuring that the discharged gas meets the emission standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the cross-sectional structure of the spray treatment tank of the utility model;

[0024] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-section structure at point A in the middle;

[0025] Figure 4 This is a schematic diagram of the connection structure between the atomizing spray pipe and the spray treatment tank of the utility model;

[0026] Figure 5 For this utility model Figure 1 Schematic diagram of the cross-sectional structure at point B in the middle.

[0027] In the figure: 1. spray treatment tank; 2. air inlet fan; 3. exhaust fan; 4. injection port; 5. sealing cover; 6. neutralizing liquid tank; 7. delivery pump; 8. pH detector; 9. delivery pipeline; 10. atomizing spray pipe; 11. baffle plate; 12. filter box; 13. packing partition box; 14. drying filter material partition box; 15. sealing end cover; 16. exhaust pipe; 17. stirring rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-5 The utility model provides a technical solution: an integrated structural device for the coordinated treatment of multiple pollutants in boiler flue gas emissions, including an air inlet on one side of a spray treatment tank 1, and the air inlet on one side of the spray treatment tank 1 is connected to an air inlet fan 2, an air outlet is provided at the upper end of the spray treatment tank 1, and the air outlet of the spray treatment tank 1 is connected to an exhaust fan 3, a neutralizing liquid tank 6 is arranged inside the end of the spray treatment tank 1 close to the air inlet fan 2, and a convection spray structure is arranged inside the spray treatment tank 1, and harmful substances in the flue gas are neutralized by the convection spray structure.

[0030] During the production and processing process, smoke is generated and sucked into the interior of the spray treatment tank 1 through the air intake fan 2. At this time, the baffle plate 11 will block the smoke, so that the smoke cannot be discharged directly after entering the spray treatment tank 1, thereby extending the time for the smoke to be discharged, allowing the smoke to fully contact the neutralizing liquid sprayed from the atomizing spray pipe 10 for adsorption and neutralization, thereby extending the time the smoke stays in the spray treatment tank 1.

[0031] The convection spray structure includes an atomizing spray pipe 10, which is fixedly installed inside the spray treatment tank 1, and one end of the atomizing spray pipe 10 passes through the outer surface of the spray treatment tank 1, and the atomizing spray pipe 10 located outside the spray treatment tank 1 is connected to the conveying pipeline 9, and a baffle plate 11 is fixedly installed inside the spray treatment tank 1, and the upper end of the baffle plate 11 is inclined, and the baffle plate 11 is located above the atomizing spray pipe 10.

[0032] When the flue gas enters the interior of the spray treatment tank 1, accompanied by the spraying of the atomizing spray pipe 10, the sprayed neutralizing liquid will fall on the outer surface of the baffle plate 11 after the adsorption reaction. Due to the inclined design of the baffle plate 11, the fallen neutralizing liquid will flow downward and return to the interior of the neutralizing liquid tank 6.

[0033] A circulating conveying structure is arranged inside the air inlet fan 2, through which the fallen neutralized liquid is reused. The circulating conveying structure includes a conveying pump 7, which is fixedly mounted at the lower end of the spray treatment tank 1, and one end of the conveying pump 7 passes through the outer surface of the spray treatment tank 1, and one side outer surface of the spray treatment tank 1 is connected to the conveying pipe 9.

[0034] The liquid in the neutralizing liquid tank 6 is delivered to the delivery pipe 9 by the delivery pump 7 and then sprayed out from the atomizing spray pipe 10 .

[0035] A material injection port 4 is installed through the side surface of the spray treatment tank 1, and a sealing cover 5 is threadedly installed at one end of the material injection port 4 away from the spray treatment tank 1, a pH detector 8 is fixedly installed inside the spray treatment tank 1, and the pH detector 8 is located at the lower end of the neutralization liquid tank 6, a stirring rod 17 is rotatably installed inside the spray treatment tank 1, and a blade is provided at the upper end of the stirring rod 17, and a stirring blade is provided at one end of the stirring rod 17 away from the atomizing spray pipe 10.

[0036] When the pH value of the liquid in the neutralizing liquid tank 6 increases after long-term use, the pH detector 8 is triggered, and the air inlet fan 2 and the exhaust fan 3 will stop working. At this time, the worker needs to remove the sealing cover 5 on the outside of the spray treatment tank 1, and send the reagent into the neutralizing liquid tank 6 through the injection port 4 to make the pH value of the neutralizing liquid return to the working range. Then the air inlet fan 2 is started to send in the flue gas, and the sent in flue gas blows the blades on the upper end of the stirring rod 17, so that the stirring rod 17 rotates to stir the liquid in the neutralizing liquid tank 6, monitor the pH value of the neutralizing liquid in the neutralizing liquid tank 6, and prevent the neutralizing liquid from precipitating, so that the neutralizing liquid is more uniform.

[0037] A filter mechanism is fixedly connected to the side of the exhaust fan 3 away from the spray treatment tank 1, and the acid and water mist remaining in the flue gas are filtered out by the filter mechanism. The filter mechanism includes a filter box 12, and the side of the filter box 12 close to the air inlet fan 2 is connected to one end of the exhaust fan 3, and a sealing end cover 15 is clamped and installed on the outer surface of one side of the filter box 12, and the sealing end cover 15 and the filter box 12 are fixed with screws. The side of the filter box 12 away from the exhaust fan 3 is connected to the exhaust duct 16, and the inside of the filter box 12 is respectively clamped and installed with a stuffing partition box 13 and a dry filter material partition box 14, and the side surfaces of the dry filter material partition box 14 and the stuffing partition box 13 are in contact with the inner surface of the sealing end cover 15, and the outer surfaces of the dry filter material partition box 14 and the stuffing partition box 13 are connected to the inner surface of the filter box 12 by sliding friction.

[0038] The flue gas after the adsorption reaction is extracted from the spray treatment tank 1 by the exhaust fan 3 and sent to the filter box 12. The harmful gas remaining in the flue gas is filtered by the stuffing partition box 13 and the dry filter material partition box 14. At the same time, the water mist in the gas is filtered and discharged to the outside through the exhaust pipe 16. When the stuffing needs to be replaced after a period of use, the sealing end cover 15 can be taken out from one side of the filter box 12, the dry filter material partition box 14 and the stuffing partition box 13 can be pulled out, and the stuffing in the stuffing partition box 13 and the dry filter material partition box 14 can be replaced.

[0039] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated structure equipment for the coordinated treatment of multiple pollutants in boiler flue gas emissions, comprising a spray treatment tank (1) with an air inlet on one side, and the air inlet on one side of the spray treatment tank (1) is connected to an air inlet fan (2), an air outlet is provided at the upper end of the spray treatment tank (1), and the air outlet of the spray treatment tank (1) is connected to an exhaust fan (3), and a neutralizing liquid tank (6) is arranged inside one end of the spray treatment tank (1) close to the air inlet fan (2), characterized in that: A convection spray structure is arranged inside the spray treatment tank (1), and harmful substances in the flue gas are neutralized by the convection spray structure.

2. The integrated structure equipment for coordinated treatment of multiple pollutants in boiler flue gas emissions according to claim 1 is characterized by: The convection spray structure comprises an atomizing spray pipe (10), wherein the atomizing spray pipe (10) is fixedly installed inside a spray treatment tank (1), and one end of the atomizing spray pipe (10) penetrates the outer surface of the spray treatment tank (1), and the atomizing spray pipe (10) located outside the spray treatment tank (1) is connected to a conveying pipeline (9), and a baffle plate (11) is fixedly installed inside the spray treatment tank (1), and the upper end of the baffle plate (11) is designed to be inclined, and the baffle plate (11) is located above the atomizing spray pipe (10).

3. The integrated structure equipment for coordinated treatment of multiple pollutants in boiler flue gas emissions according to claim 1 is characterized by: A circulating conveying structure is arranged inside the air inlet fan (2), and the fallen neutralized liquid is reused through the circulating conveying structure.

4. The integrated structure equipment for coordinated treatment of multiple pollutants in boiler flue gas emissions according to claim 3 is characterized by: The circulating conveying structure comprises a conveying pump (7), wherein the conveying pump (7) is fixedly mounted at the lower end of the spray treatment tank (1), and one end of the conveying pump (7) penetrates the outer surface of the spray treatment tank (1), and one side outer surface of the spray treatment tank (1) is connected to the conveying pipeline (9).

5. The integrated structure equipment for coordinated treatment of multiple pollutants in boiler flue gas emissions according to claim 1 is characterized by: The side surface of the spray treatment tank (1) is penetrated by a material injection port (4), and a sealing cover (5) is threadedly installed at one end of the material injection port (4) away from the spray treatment tank (1). A pH detector (8) is fixedly installed inside the spray treatment tank (1), and the pH detector (8) is located at the lower end of the neutralization liquid tank (6). A stirring rod (17) is rotatably installed inside the spray treatment tank (1), and a blade is arranged at the upper end of the stirring rod (17), and a stirring blade is arranged at one end of the stirring rod (17) away from the atomizing spray pipe (10).

6. The integrated structure equipment for coordinated treatment of multiple pollutants in boiler flue gas emissions according to claim 1 is characterized by: A filter mechanism is fixedly connected to the side of the exhaust fan (3) away from the spray treatment tank (1), and the acid and water mist remaining in the flue gas are filtered out by the filter mechanism.

7. The integrated structure equipment for coordinated treatment of multiple pollutants in boiler flue gas emissions according to claim 6 is characterized by: The filtering mechanism comprises a filter box (12), wherein a side of the filter box (12) close to the air inlet fan (2) is connected to one end of the exhaust fan (3), and a sealing end cover (15) is mounted on an outer surface of one side of the filter box (12), and the sealing end cover (15) and the filter box (12) are fixed by screws, and a side of the filter box (12) away from the exhaust fan (3) is connected to an exhaust duct (16), and a stuffing partition box (13) and a dry filter material partition box (14) are mounted inside the filter box (12), and the side surfaces of the dry filter material partition box (14) and the stuffing partition box (13) are fitted with the inner surface of the sealing end cover (15), and the outer surfaces of the dry filter material partition box (14) and the stuffing partition box (13) are connected to the inner surface of the filter box (12) by sliding friction.

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