Desulfurization and dust removal device

Abstract

The utility model discloses a desulfurization and dust removal device, belongs to the technical field of waste gas treatment, and aims to solve the technical problems that in the prior art, desulfurization and dust removal equipment generally consists of two or more tower bodies, so that the overall waste gas desulfurization and dust removal equipment is relatively large in size, relatively large in occupied mounting space and unfavorable for production activities of enterprises. The desulfurization and dust removal device comprises a desulfurization tower and a tower base at the bottom end of the desulfurization tower, the tower base is hollow and communicated with the desulfurization tower, a spraying barrel is arranged in the desulfurization tower in an attached mode, a plurality of nozzles are distributed on the inner wall of the spraying barrel, and an air inlet pipe is arranged at the position, below the spraying barrel, of the side wall of the desulfurization tower. And a dust removal cylinder penetrating through the spraying cylinder is vertically arranged in the desulfurization tower. According to the desulfurization and dust removal device, a desulfurization structure and a dust removal structure are integrated in one tower body structure, a desulfurization and dust removal mode of waste gas ascending desulfurization and descending dust removal is adopted, the structure is compact, the occupied area is reduced, assembly is convenient, and good desulfurization and dust removal effects are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment, and particularly relates to a desulfurization and dust removal device. Background Art

[0002] Various pollutant gases discharged into the air during fuel combustion and production processes within the enterprise's factory area have complex compositions, including but not limited to carbon dioxide, carbon disulfide, hydrogen sulfide, fluoride, nitrogen oxides, chlorine, hydrogen chloride, carbon monoxide, sulfuric acid (mist), lead, mercury, beryllium, smoke and industrial dust, etc. After these substances are discharged into the atmosphere, they will have a significant impact on the environment and will also cause harm to human health.

[0003] At present, desulfurization and dust removal of industrial waste gas is an important means to reduce air pollution and improve air quality. It mainly purifies and removes sulfur oxides (such as sulfur dioxide) and dust particles in waste gas. However, the existing desulfurization and dust removal equipment is generally composed of two or even more tower bodies. The desulfurization and dust removal of industrial waste gas are usually completed in different tower bodies. As a result, the overall volume of the waste gas desulfurization and dust removal equipment is large, which occupies more installation space and is not conducive to the production activities of the enterprise. For this reason, this application proposes a desulfurization and dust removal device. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the purpose of this utility model is to provide a desulfurization and dust removal device, aiming to solve the technical problem that the desulfurization and dust removal equipment in the existing technology is generally composed of two or even more tower bodies, resulting in the overall waste gas desulfurization and dust removal equipment being large in size, occupying more installation space, and being not conducive to the production activities of the enterprise.

[0005] Technical Solution

[0006] In order to solve the above technical problems, the utility model provides a desulfurization and dust removal device, comprising a desulfurization tower and a tower base at the bottom end of the desulfurization tower, the tower base is hollow inside and connected to the desulfurization tower, a spray barrel is fitted inside the desulfurization tower, a plurality of nozzles are distributed on the inner wall of the spray barrel, an air inlet pipe is provided at a position below the spray barrel on the side wall of the desulfurization tower, a dust removal barrel passing through the spray barrel is vertically arranged in the desulfurization tower, the bottom end of the dust removal barrel is connected to an exhaust pipe extending out of the desulfurization tower, a dust removal bag is installed in the dust removal barrel, and the top end of the dust removal bag is connected to the inside of the desulfurization tower.

[0007] Preferably, a steel mesh cylinder is provided in the dust removal cylinder, and the dust removal bag is assembled inside the steel mesh cylinder.

[0008] Preferably, the nozzles are arranged to be tilted downward, and an absorbent delivery pipe connected to a plurality of nozzles is provided on the side wall of the desulfurization tower.

[0009] Preferably, the bottom end of the dust collector is connected to an air duct, the bottom end of the air duct is fixed with a fixed support rod, the fixed support rod is fixed on the inner wall of the desulfurization tower, the exhaust pipe is connected to the inside of the dust collector through the air duct, and the exhaust pipe is equipped with a fan.

[0010] Preferably, a feeding port is provided on the top wall of the tower base, a discharge pipe is connected to the bottom of the side wall of the tower base, a stirring paddle is rotatably installed in the tower base, and a motor for driving the stirring paddle to rotate is installed on the outer wall of the tower base.

[0011] Preferably, a guide ring plate is provided near the bottom end of the desulfurization tower, and the guide ring plate gradually converges from top to bottom toward the middle of the desulfurization tower, and the air inlet pipe and the exhaust pipe are both located below the guide ring plate.

[0012] Preferably, a ring seat is provided at the top of the dust removal cylinder, edge plates are provided at the top of the steel mesh cylinder and the top of the dust removal bag, and a top cover is provided at the top of the desulfurization tower. A plurality of top rods are vertically fixed to the bottom of the top cover, and a lower pressure ring plate is fixed at the bottom of the top rod for pressing the edge plate against the ring seat.

[0013] Beneficial effects

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model uses a spray barrel and a dust removal barrel arranged in a desulfurization tower, uses alkaline clear liquid as an absorbent, which is input into the desulfurization tower through an absorbent delivery pipe and sprayed out from multiple nozzles. Industrial waste gas is input into the desulfurization tower from an air inlet pipe, and floats upward along the gap between the spray barrel and the dust removal barrel. The absorbent sprayed by multiple nozzles absorbs sulfur dioxide and falls to the tower base for collection, thereby realizing desulfurization of the waste gas. The desulfurized waste gas enters the dust removal bag from the top of the desulfurization tower, and the dust in the waste gas is removed by the dust removal bag. Under the suction of the fan, the waste gas is discharged from the air duct and the exhaust pipe through the gap between the steel mesh barrel and the inner wall of the dust removal barrel, thereby achieving the purpose of desulfurization and dust removal of industrial waste gas. The structure that integrates the desulfurization structure and the dust removal structure in a tower body, and adopts a desulfurization and dust removal method in which the waste gas desulfurizes as it rises and removes dust as it descends, has a compact structure, reduces the floor space, is convenient to assemble, and has good desulfurization and dust removal effects. In addition, after the absorbent containing sulfur dioxide falls into the tower base, lime milk is added into the tower base from the feeding port, and the motor is started to drive the stirring paddle to stir and mix, which can regenerate the absorbent and generate gypsum, thereby reducing secondary pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the desulfurization tower and tower base of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the dust removal cylinder in the present utility model;

[0020] Figure 4 For this utility model Figure 2 A magnified view of point A in the figure;

[0021] Figure 5 For this utility model Figure 3 A in the enlarged view.

[0022] The markings in the attached figure are: 1. Desulfurization tower; 2. Tower base; 3. Air inlet pipe; 4. Absorbent delivery pipe; 5. Exhaust pipe; 6. Feed port; 7. Discharge pipe; 8. Top cover; 9. Spray tube; 10. Dust collector; 11. Motor; 12. Agitator paddle; 13. Fan; 14. Air duct; 15. Fixed support rod; 16. Steel mesh tube; 17. Dust bag; 18. Bracket; 19. Nozzle; 20. Guide ring plate; 21. Top rod; 22. Lower pressure ring plate; 23. Edge plate; 24. Ring seat. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] This embodiment provides a desulfurization and dust removal device, the structural diagram of which is as follows: Figure 1-Figure 5As shown, it includes a desulfurization tower 1 and a tower base 2 at the bottom end of the desulfurization tower 1. The tower base 2 is hollow inside and connected to the desulfurization tower 1. A spray barrel 9 is fitted in the desulfurization tower 1, and a plurality of nozzles 19 are distributed on the inner wall of the spray barrel 9. An absorbent delivery pipe 4 connected to the plurality of nozzles 19 is passed through the side wall of the desulfurization tower 1. An air inlet pipe 3 is provided at a position below the spray barrel 9 on the side wall of the desulfurization tower 1. A dust removal barrel 10 passing through the spray barrel 9 is vertically arranged in the desulfurization tower 1. The bottom end of the dust removal barrel 10 is connected to an exhaust pipe 5 extending out of the desulfurization tower 1. A dust removal bag 17 is installed in the dust removal barrel 10. The top of the dust removal bag 17 is connected to the inside of the desulfurization tower 1. Alkaline clear liquid is used as the absorbent and is input into the desulfurization tower 1 by the absorbent delivery pipe 4. Multiple nozzles 19 spray out, and industrial waste gas is input into the desulfurization tower 1 from the air inlet pipe 3, and floats upward along the gap between the spray cylinder 9 and the dust removal cylinder 10. The absorbent sprayed by multiple nozzles 19 absorbs sulfur dioxide and falls to the tower base 2 for collection, which can realize the desulfurization of the waste gas. The desulfurized waste gas enters the dust removal bag 17 from the top of the desulfurization tower 1, and the dust in the waste gas is removed by the dust removal bag 17. It is discharged through the exhaust pipe 5, thereby achieving the purpose of desulfurization and dust removal of industrial waste gas. The desulfurization structure and the dust removal structure are integrated into a tower body as a whole, and a desulfurization and dust removal method is adopted in which the waste gas rises for desulfurization and descends for dust removal. The structure is compact, the floor space is reduced, the assembly is convenient, and it has a good desulfurization and dust removal effect.

[0025] In this embodiment, the nozzle 19 is tilted downward, which helps the absorbent ejected from the nozzle 19 absorb as much sulfur dioxide as possible, thereby improving the desulfurization efficiency. A steel mesh tube 16 is provided in the dust collection tube 10, and a dust bag 17 is mounted inside the steel mesh tube 16. The steel mesh tube 16 is used to limit and support the dust bag 17. A plurality of brackets 18 for supporting the steel mesh tube 16 are provided on the inner wall of the dust collection tube 10. The bottom end of the dust collection tube 10 is connected to the air duct 14, and a fixed support rod 15 is fixed to the bottom end of the air duct 14. The fixed support rod 15 is fixed to the inner wall of the desulfurization tower 1. The exhaust pipe 5 is connected to the interior of the dust collection tube 10 through the air duct 14, and the exhaust pipe 5 is equipped with a fan 13. The fan 13 can be used to smoothly exhaust the exhaust gas in the dust collection tube 10 after filtering and dust removal by the dust bag 17.

[0026] In a further embodiment, a guide ring plate 20 is provided near the bottom of the desulfurization tower 1. The guide ring plate 20 gradually converges from top to bottom toward the middle of the desulfurization tower 1. The air inlet pipe 3 and the exhaust pipe 5 are both located below the guide ring plate 20, which facilitates the absorbent to flow into the tower base 2 for collection. A feed port 6 is provided on the top wall of the tower base 2, and a discharge pipe 7 is connected to the bottom of the side wall of the tower base 2. A stirring paddle 12 is rotatably installed in the tower base 2, and a motor 11 for driving the stirring paddle 12 to rotate is installed on the outer wall of the tower base 2. Lime milk is added into the tower base 2 through the feed port 6, and the motor 11 is started to drive the stirring paddle 12 to stir and mix, which can regenerate the absorbent, generate gypsum, and reduce secondary pollution.

[0027] Furthermore, in this embodiment, a ring seat 24 is provided at the top of the dust removal cylinder 10, and edge plates 23 are provided at the tops of the steel mesh cylinder 16 and the dust bag 17. The top cover of the desulfurization tower 1 is provided with a top cover 8, and a plurality of top rods 21 are vertically fixed at the bottom of the top cover 8. A lower pressure ring plate 22 is fixed at the bottom of the top rod 21 for pressing the edge plate 23 against the ring seat 24. After opening the top cover 8, the dust bag 17 and the steel mesh cylinder 16 can be taken out in turn for easy assembly.

[0028] Working principle: When in use, alkaline clear liquid is used as absorbent and is input into the desulfurization tower 1 through the absorbent delivery pipe 4 and sprayed out by multiple nozzles 19. Industrial waste gas is input into the desulfurization tower 1 from the air inlet pipe 3 and floats upward along the gap between the spray cylinder 9 and the dust removal cylinder 10. The absorbent sprayed by multiple nozzles 19 absorbs sulfur dioxide and falls to the tower base 2 for collection, thereby achieving desulfurization of the waste gas. The desulfurized waste gas enters the dust removal bag 17 from the top of the desulfurization tower 1, and the dust in the waste gas is removed by the dust removal bag 17. Under the suction and exhaust of the fan 13, it is discharged from the air duct 14 and the exhaust pipe 5 through the gap between the steel mesh tube 16 and the inner wall of the dust removal cylinder 10, thereby achieving the purpose of desulfurization and dust removal of industrial waste gas. The structure integrates the desulfurization structure and the dust removal structure in a tower body, and adopts a desulfurization and dust removal method in which the waste gas rises for desulfurization and descends for dust removal. The structure is compact, the floor space is reduced, the assembly is convenient, and it has a good desulfurization and dust removal effect. Furthermore, after the absorbent containing sulfur dioxide falls into the tower base 2, lime milk is added into the tower base 2 through the feeding port 6, and the motor 11 is started to drive the stirring paddle 12 to stir and mix, so as to regenerate the absorbent and generate gypsum, thereby reducing secondary pollution.

[0029] All technical features in this embodiment can be freely combined according to actual needs.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A desulfurization and dust removal device, comprising a desulfurization tower (1) and a tower base (2) at the bottom end of the desulfurization tower (1), characterized in that: The tower base (2) is hollow inside and communicates with the desulfurization tower (1). A spray barrel (9) is fitted inside the desulfurization tower (1), and a plurality of nozzles (19) are distributed on the inner wall of the spray barrel (9). An air inlet pipe (3) is provided on the side wall of the desulfurization tower (1) below the spray barrel (9). A dust removal barrel (10) is vertically provided inside the desulfurization tower (1) and passes through the spray barrel (9). The bottom end of the dust removal barrel (10) is connected to an exhaust pipe (5) extending outside the desulfurization tower (1). A dust removal bag (17) is installed in the dust removal barrel (10), and the top end of the dust removal bag (17) is communicated with the inside of the desulfurization tower (1).

2. A desulfurization and dust removal device according to claim 1, characterized in that: A steel mesh cylinder (16) is provided in the dust removal cylinder (10), and the dust removal bag (17) is assembled inside the steel mesh cylinder (16).

3. A desulfurization and dust removal device according to claim 1, characterized in that: The nozzles (19) are arranged to be tilted downward, and an absorbent delivery pipe (4) communicating with a plurality of nozzles (19) is provided on the side wall of the desulfurization tower (1).

4. A desulfurization and dust removal device according to claim 1, characterized in that: The bottom end of the dust removal cylinder (10) is connected to an air duct (14), the bottom end of the air duct (14) is fixed with a fixed support rod (15), and the fixed support rod (15) is fixed on the inner wall of the desulfurization tower (1). The exhaust pipe (5) is connected to the inside of the dust removal cylinder (10) through the air duct (14), and a fan (13) is installed on the exhaust pipe (5).

5. The desulfurization and dust removal device according to claim 1, characterized in that: A feeding port (6) is provided on the top wall of the tower base (2), a discharge pipe (7) is connected to the bottom of the side wall of the tower base (2), a stirring paddle (12) is rotatably installed inside the tower base (2), and a motor (11) for driving the stirring paddle (12) to rotate is installed on the outer wall of the tower base (2).

6. A desulfurization and dust removal device according to claim 1, characterized in that: A guide ring plate (20) is provided near the bottom of the desulfurization tower (1), and the guide ring plate (20) gradually converges from top to bottom toward the middle of the desulfurization tower (1), and the air inlet pipe (3) and the exhaust pipe (5) are both located below the guide ring plate (20).

7. A desulfurization and dust removal device according to claim 2, characterized in that: The top of the dust removal cylinder (10) is provided with a ring seat (24), the top of the steel mesh cylinder (16) and the top of the dust removal bag (17) are both provided with an edge plate (23), the top cover of the desulfurization tower (1) is provided with a top cover (8), and a plurality of top rods (21) are vertically fixed to the bottom of the top cover (8), and a lower pressure ring plate (22) is fixed at the bottom of the top rod (21) for pressing the edge plate (23) against the ring seat (24).

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