Desulfurization and denitrification environment-friendly dust removal device

Abstract

The invention relates to the technical field of waste gas treatment, and particularly discloses a desulfurization and denitrification environment-friendly dust removal device which comprises a treatment box, a treatment mechanism is arranged in the treatment box, a filtering mechanism is arranged on the lower end face of the treatment box, the treatment mechanism comprises a mounting plate fixedly connected to the interior of the treatment box, and the upper end face of the mounting plate communicates with a gas passing cylinder; the upper end of the gas passing cylinder is fixedly connected with a filter screen cylinder, the upper end of the filter screen cylinder is fixedly connected with a first dispersion box, and the lower end face of the first dispersion box communicates with a plurality of first atomizing nozzles which are uniformly distributed; flue gas is subjected to secondary treatment through water mist sprayed by a plurality of first atomizing nozzles, the flue gas is subjected to tertiary treatment through a filter screen cylinder, the flue gas is subjected to quartic treatment through water mist sprayed by a plurality of second atomizing nozzles, and then dust particles in the flue gas are efficiently adsorbed through a multi-stage flue gas treatment mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and specifically discloses a desulfurization, denitrification and environmental protection dust removal device. Background Art

[0002] With the rapid development of industrialization, the flue gas emitted by industries such as coal combustion, metallurgy, and chemical industry contains a large amount of sulfur oxides (SOx), nitrogen oxides (NOx), and dust particles. These pollutants not only seriously harm the atmospheric environment but also pose a threat to human health. Therefore, when discharging flue gas, a desulfurization, denitrification and environmental protection dust removal device is needed to purify the dust particles in the flue gas.

[0003] In the existing desulfurization, denitrification and environmental protection dust removal device, when purifying flue gas, the dust particles in the flue gas are mostly adsorbed by spraying. However, the existing desulfurization, denitrification and environmental protection dust removal device can only perform a single adsorption treatment on the dust particles in the flue gas, and due to the disordered distribution of the flue gas, the sprayed water mist cannot fully contact the flue gas, resulting in poor adsorption treatment effect of the existing desulfurization, denitrification and environmental protection dust removal device on the dust particles in the flue gas. Summary of the Invention

[0004] The present invention provides a desulfurization, denitrification and environmental protection dust removal device, which efficiently adsorbs dust particles in flue gas through a multi-stage flue gas treatment mechanism.

[0005] The present invention is implemented as follows. A desulfurization, denitrification and environmental protection dust removal device includes a treatment box. A treatment mechanism is arranged inside the treatment box, and a filtering mechanism is arranged on the lower end surface of the treatment box.

[0006] The treatment mechanism includes a mounting plate fixedly connected inside the treatment box. An air passage cylinder is communicated with the upper end surface of the mounting plate. The upper end of the air passage cylinder is fixedly connected with a filter screen cylinder. The upper end of the filter screen cylinder is fixedly connected with a first dispersion box. A plurality of uniformly distributed first atomizing nozzles are communicated with the lower end surface of the first dispersion box. The upper end of the treatment box is fixedly connected with a second dispersion box. A through hole is formed through the upper end surface of the second dispersion box. A plurality of uniformly distributed second atomizing nozzles are communicated with the lower end surface of the second dispersion box.

[0007] As a preferred embodiment of the desulfurization, denitrification and environmental protection dust removal device of the present invention, the filtering mechanism includes a filter box fixedly connected to the lower end surface of the treatment box. A notch is formed through the lower end surface of the filter box. A filter screen is arranged inside the filter box. The outer wall of the filter screen is in close sealing contact with the inner wall of the filter box. The lower end of the filter screen extends below the filter box through the notch and is fixedly connected with a fixing plate. The fixing plate is detachably connected to the filter box through bolts.

[0008] Preferably, as a desulfurization, denitrification and environmental protection dust removal device of the present invention, a first conveying pipeline passing through the treatment tank and the mounting plate is communicated between the left side wall of the filter box and the second dispersion box, a second conveying pipeline is communicated with the right side wall of the filter box, the other end of the second conveying pipeline extends to the lower end inside the treatment tank, and a water pump is installed.

[0009] Preferably, as a desulfurization, denitrification and environmental protection dust removal device of the present invention, a fan with an air inlet end communicated with the treatment tank is installed on the upper end surface of the treatment tank, an exhaust pipeline is communicated with the air outlet end of the fan, and a liquid discharge pipeline is communicated with the left side wall of the treatment tank above the mounting plate.

[0010] Preferably, as a desulfurization, denitrification and environmental protection dust removal device of the present invention, an air inlet pipeline is fixedly connected to the right side wall of the treatment tank, and one end of the air inlet pipeline penetrates through the treatment tank and the air passing cylinder and extends to the lower end inside the treatment tank.

[0011] Preferably, as a desulfurization, denitrification and environmental protection dust removal device of the present invention, a plurality of high-pressure nozzles are distributed in an array on the lower end surface of the first dispersion box and are located around a plurality of first atomizing nozzles. The plurality of high-pressure nozzles are inclined, and the water outlet ends face the inner wall of the filter screen cylinder.

[0012] Preferably, as a desulfurization, denitrification and environmental protection dust removal device of the present invention, a liquid inlet pipeline is fixedly connected to the left side wall of the treatment tank, and one end of the liquid inlet pipeline extends into the treatment tank and is communicated with the first dispersion box.

[0013] The beneficial effects of the present invention are as follows:

[0014] The flue gas is primarily treated by the treatment liquid at the lower end inside the treatment tank, secondarily treated by the water mist ejected from a plurality of first atomizing nozzles, tertiarily treated by the filter screen cylinder, and quaternarily treated by the water mist ejected from a plurality of second atomizing nozzles. Thus, through the multi-stage flue gas treatment mechanism, the dust particles in the flue gas are efficiently adsorbed and treated. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally denoted by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic front sectional structure diagram of the present invention;

[0018] Figure 3 For the present invention Figure 2 Schematic enlarged structure diagram of part a in the present invention;

[0019] Figure 4 Schematic upward sectional structure diagram of the present invention;

[0020] Figure 5 Schematic three - dimensional structure diagram of the second dispersion box of the present invention.

[0021] Markings in the figure: 1. Processing box; 2. Mounting plate; 3. Air - passing cylinder; 4. Filter screen cylinder; 5. First dispersion box; 6. First atomizing nozzle; 7. Second dispersion box; 8. Through - hole; 9. Second atomizing nozzle; 10. Filter box; 11. Notch; 12. Filter screen; 13. Fixed plate; 14. First conveying pipeline; 15. Second conveying pipeline; 16. Water pump; 17. Fan; 18. Discharge pipeline; 19. Intake pipeline; 20. High - pressure nozzle; 21. Liquid inlet pipeline; 22. Liquid discharge pipeline. Specific embodiments

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments to facilitate understanding of the content of the present invention. The methods used in the present invention are all conventional methods unless otherwise specified; the raw materials and devices used are all conventional commercially available products unless otherwise specified.

[0023] Please refer to Figures 1-5 , a desulfurization, denitrification and environmental protection dust removal device, including a processing box 1, a processing mechanism is arranged inside the processing box 1, and a filtering mechanism is arranged on the lower end surface of the processing box 1;

[0024] The processing mechanism includes a mounting plate 2 fixedly connected inside the processing box 1, an air - passing cylinder 3 is communicated with the upper end surface of the mounting plate 2, a filter screen cylinder 4 is fixedly connected to the upper end of the air - passing cylinder 3, a first dispersion box 5 is fixedly connected to the upper end of the filter screen cylinder 4, a plurality of uniformly distributed first atomizing nozzles 6 are communicated with the lower end surface of the first dispersion box 5, a second dispersion box 7 is fixedly connected to the upper part inside the processing box 1, a through - hole 8 is penetrated and opened on the upper end surface of the second dispersion box 7, and a plurality of uniformly distributed second atomizing nozzles 9 are communicated with the lower end surface of the second dispersion box 7.

[0025] In this embodiment: Flue gas is transported into the treatment tank 1 through a flue gas transportation pipeline and an intake pipeline 19, so that the flue gas first enters the treatment liquid at the lower end inside the treatment tank 1, and the flue gas is primarily treated by the treatment liquid at the lower end inside the treatment tank 1. Meanwhile, the blower 17 sucks the flue gas upward, enabling the flue gas to pass through the air passage cylinder 3 and reach the filter mesh cylinder 4, and the flue gas is secondarily treated by the water mist ejected from multiple first atomizing nozzles 6. Then the flue gas passes through the filter mesh cylinder 4 and enters the treatment tank 1, and the flue gas is tertiarily treated by the filter mesh cylinder 4. After the flue gas enters the treatment tank 1, the water pump 16 transports the treatment liquid at the lower end inside the treatment tank 1 through the second transportation pipeline 15, a filtering mechanism, and the first transportation pipeline 14 to the second dispersion box 7, and then it is ejected through multiple second atomizing nozzles 9. The water mist ejected through multiple second atomizing nozzles 9 quaternarily treats the flue gas. Furthermore, through a multi-stage flue gas treatment mechanism, the dust particles in the flue gas are efficiently adsorbed and treated.

[0026] As a technical optimization solution of the present invention, the filtering mechanism includes a filter box 10 fixedly connected to the lower end face of the treatment tank 1. A notch 11 is penetratingly opened on the lower end face of the filter box 10. A filter mesh 12 is arranged inside the filter box 10. The outer wall of the filter mesh 12 is tightly and sealingly abutted against the inner wall of the filter box 10. The lower end of the filter mesh 12 extends below the filter box 10 through the notch 11 and is fixedly connected to a fixing plate 13. The fixing plate 13 is detachably connected to the filter box 10 by bolts.

[0027] In this embodiment: After the treatment liquid at the lower end inside the treatment tank 1 enters the filter box 10 through the second transportation pipeline 15, the treatment liquid passes through the filter mesh 12, and the filter mesh 12 filters the dust particles in the treatment liquid to prevent the dust particles in the treatment liquid from clogging the second atomizing nozzles 9. Then the filtered treatment liquid enters the first transportation pipeline 14. Since the outer wall of the filter mesh 12 is tightly and sealingly abutted against the inner wall of the filter box 10, the dust particles in the treatment liquid will not pass through the gap between the filter mesh 12 and the inner wall of the filter box 10. Since the fixing plate 13 is detachably connected to the filter box 10 by bolts, it is convenient to take out the filter mesh 12 from the filter box 10 to clean the filter mesh 12, and at the same time, the dust particles in the filter box 10 can also be cleaned.

[0028] As a technical optimization solution of the present invention, a first transportation pipeline 14 communicating between the left side wall of the filter box 10 and the second dispersion box 7 passes through the treatment tank 1 and the mounting plate 2. A second transportation pipeline 15 is communicated with the right side wall of the filter box 10. The other end of the second transportation pipeline 15 extends to the lower end inside the treatment tank 1 and is equipped with a water pump 16.

[0029] In this embodiment: The water pump 16 can suck the treatment liquid at the lower end inside the treatment tank 1 through the second transportation pipeline 15, the filter box 10, and the first transportation pipeline 14 into the second dispersion box 7.

[0030] As a technical optimization solution of the present invention, a blower 17 with an air inlet end communicating with the treatment tank 1 is installed on the upper end surface of the treatment tank 1. The air outlet end of the blower 17 is communicated with a discharge pipe 18, and a liquid discharge pipe 22 located above the mounting plate 2 is communicated with the left side wall of the treatment tank 1.

[0031] In this embodiment: The blower 17 can pump the flue gas flow in the treatment tank 1. The treated flue gas can be discharged from the treatment tank 1 through the liquid discharge pipe 22, and the treatment liquid staying on the mounting plate 2 can be discharged through the liquid discharge pipe 22.

[0032] As a technical optimization solution of the present invention, an intake pipe 19 is fixedly connected to the right side wall of the treatment tank 1. One end of the intake pipe 19 penetrates through the treatment tank 1 and the air passing cylinder 3 and extends to the lower end inside the treatment tank 1.

[0033] In this embodiment: The intake pipe 19 can convey flue gas into the treatment tank 1.

[0034] As a technical optimization solution of the present invention, a plurality of high-pressure nozzles 20 are arrayed and communicated with the lower end surface of the first dispersion box 5 and are located around the plurality of first atomizing nozzles 6. The plurality of high-pressure nozzles 20 are inclined, and the water outlet ends face the inner wall of the filter screen cylinder 4.

[0035] In this embodiment: Since the plurality of high-pressure nozzles 20 are inclined and the water outlet ends face the inner wall of the filter screen cylinder 4, the treatment liquid sprayed from the plurality of high-pressure nozzles 20 can wash the dust particles adsorbed on the inner wall of the filter screen cylinder 4.

[0036] As a technical optimization solution of the present invention, a liquid inlet pipe 21 is fixedly connected to the left side wall of the treatment tank 1. One end of the liquid inlet pipe 21 extends into the treatment tank 1 and is communicated with the first dispersion box 5.

[0037] In this embodiment: The liquid inlet pipe 21 facilitates the conveyance of the treatment liquid into the first dispersion box 5.

[0038] Working principle and usage process of the present invention: When in use, connect the external flue gas conveying pipeline and the treatment liquid conveying pipeline to the intake pipeline 19 and the liquid inlet pipeline 21 respectively. Then, convey the treatment liquid into the first dispersion box 5 through the treatment liquid conveying pipeline and the liquid inlet pipeline 21. Then, the treatment liquid is ejected through a plurality of first atomizing nozzles 6 and high-pressure nozzles 20 and flows to the lower end inside the treatment tank 1. After the liquid level of the treatment liquid accumulated at the lower end inside the treatment tank 1 submerges the lower ends of the water pump 16 and the intake pipeline 19, convey the flue gas into the treatment tank 1 through the flue gas conveying pipeline and the intake pipeline 19, so that the flue gas first enters the treatment liquid at the lower end inside the treatment tank 1, and the treatment liquid at the lower end inside the treatment tank 1 performs a primary treatment on the flue gas. At the same time, start the fan 17, and draw the flue gas upward through the fan 17, so that the flue gas passes through the air passing cylinder 3 and reaches the filter screen cylinder 4, and a secondary treatment is performed on the flue gas by the water mist ejected from a plurality of first atomizing nozzles 6. Then, the flue gas passes through the filter screen cylinder 4 and enters the treatment tank 1, and a tertiary treatment is performed on the flue gas by the filter screen cylinder 4. After the flue gas enters the treatment tank 1, start the water pump 16, and the water pump 16 conveys the treatment liquid at the lower end inside the treatment tank 1 to the second dispersion box 7 through the second conveying pipeline 15, the filtering mechanism and the first conveying pipeline 14. The filtering mechanism can filter the dust particles in the treatment liquid at the lower end inside the treatment tank 1 to prevent the dust particles in the treatment liquid from blocking the second atomizing nozzles 9. Then, it is ejected through a plurality of second atomizing nozzles 9, and a fourth treatment is performed on the flue gas by the water mist ejected from a plurality of second atomizing nozzles 9. Then, the flue gas is discharged from the treatment tank 1 through the fan 17 and the discharge pipeline 18. At the same time, the treatment liquid ejected from a plurality of second atomizing nozzles 9 stays on the mounting plate 2 and is then discharged through the drain pipeline 22. Thus, through the multi-stage flue gas treatment mechanism, the dust particles in the flue gas are efficiently adsorbed and treated.

[0039] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0040] However, the above are only specific embodiments of the present invention, and the scope of implementation of the present invention cannot be limited thereby. Therefore, the replacement of equivalent components or equivalent changes and modifications made according to the scope of protection of the present invention patent shall still fall within the scope covered by the claims of the present invention.

Claims

1. A desulfurization and denitrification environmental protection dust removal device, comprising a treatment box (1), characterized in that: A processing mechanism is provided inside the processing box (1), and a filtering mechanism is provided on the lower end surface of the processing box (1); The processing mechanism comprises a mounting plate (2) fixedly connected to the inside of the processing box (1), the upper end face of the mounting plate (2) is connected to an air cylinder (3), the upper end of the air cylinder (3) is fixedly connected to a filter cylinder (4), the upper end of the filter cylinder (4) is fixedly connected to a first dispersion box (5), the lower end face of the first dispersion box (5) is connected to a plurality of evenly distributed first atomizing nozzles (6), the upper end of the inside of the processing box (1) is fixedly connected to a second dispersion box (7), the upper end face of the second dispersion box (7) is penetrated by a through hole (8), and the lower end face of the second dispersion box (7) is connected to a plurality of evenly distributed second atomizing nozzles (9).

2. A desulfurization, denitrification and environmental protection dust removal device according to claim 1, characterized in that: The filtering mechanism comprises a filter box (10) fixedly connected to the lower end surface of the processing box (1); a notch (11) is formed through the lower end surface of the filter box (10); a filter screen (12) is arranged inside the filter box (10); the outer wall of the filter screen (12) is tightly sealed against the inner wall of the filter box (10); the lower end of the filter screen (12) extends to the bottom of the filter box (10) through the notch (11) and is fixedly connected to a fixing plate (13); the fixing plate (13) is detachably connected to the filter box (10) by bolts.

3. A desulfurization, denitrification and environmental protection dust removal device according to claim 2, characterized in that: A first delivery pipe (14) passing through the treatment box (1) and the mounting plate (2) is connected between the left side wall of the filter box (10) and the second dispersion box (7); a second delivery pipe (15) is connected to the right side wall of the filter box (10); the other end of the second delivery pipe (15) extends to the lower end of the interior of the treatment box (1) and is installed with a water pump (16).

4. The desulfurization, denitration and environmental protection dust removal device according to claim 1 is characterized in that: The upper end surface of the processing box (1) is equipped with a fan (17) whose air inlet end is connected to the processing box (1), and the air outlet end of the fan (17) is connected to a discharge pipe (18). The left side wall of the processing box (1) is connected to a liquid discharge pipe (22) located above the mounting plate (2).

5. The desulfurization, denitration and environmental protection dust removal device according to claim 1 is characterized in that: An air intake pipe (19) is fixedly connected to the right side wall of the processing box (1), and one end of the air intake pipe (19) passes through the processing box (1) and the air cylinder (3) and extends to the lower end of the interior of the processing box (1).

6. The desulfurization, denitration and environmental protection dust removal device according to claim 1 is characterized in that: The lower end surface of the first dispersion box (5) is connected to a plurality of high-pressure nozzles (20) which are distributed in an array and are located around the plurality of first atomizing nozzles (6). The plurality of high-pressure nozzles (20) are arranged at an angle, and the water outlet ends face the inner wall of the filter cylinder (4).

7. The desulfurization, denitration and environmental protection dust removal device according to claim 1 is characterized in that: A liquid inlet pipe (21) is fixedly connected to the left side wall of the processing box (1), and one end of the liquid inlet pipe (21) extends to the interior of the processing box (1) and is connected to the first dispersion box (5).

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