Wet desulfurization and denitrification absorption device

Abstract

The utility model discloses a wet desulfurization and denitrification absorption device, which relates to the field of waste gas purification, solves the problem that the existing device is difficult to carry out efficient desulfurization and denitrification purification on waste gas according to requirements, and adopts the following scheme that the wet desulfurization and denitrification absorption device comprises a desulfurization and denitrification tower, a spraying seat for spraying absorption liquid to the inner side of the tower drum is fixedly mounted at the top of the tower drum; fan blades are fixedly installed on the top side in the tower barrel, and a liquid base is fixedly installed on the bottom side in the tower barrel. The liquid seat comprises a bottom disc on the bottom side and a top disc on the top side; according to the wet desulfurization and denitrification absorption device, through the arrangement of the fan blades in the tower barrel, liquid drops sprayed on the top side of the tower barrel can drop on the fan blades and burst into water mist with a larger area, the contact area between the water mist and waste gas is increased, meanwhile, liquid flow drops into the liquid seat, and the liquid flow penetrates through the top plate and the top hole and the bottom hole in the bottom plate, so that the water mist is prevented from entering the tower barrel. And a water curtain is generated between the two layers and is in contact with the passing waste gas, so that efficient desulfurization and denitrification are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas purification, in particular to a wet desulfurization and denitrification absorption device. Background Art

[0002] The most important method for treating waste gas is to remove sulfur and nitrate from the waste gas. The current method is generally wet removal, which means using a spraying method to remove sulfur and nitrate from the waste gas that comes into contact with the liquid.

[0003] After searching, the application with patent publication number 210674791U discloses a wet desulfurization and denitrification absorption device, which includes a desulfurization and denitrification tower, and a flue gas inlet is arranged at the lower part of the side wall of the desulfurization and denitrification tower. A flue gas mixing distributor, an oxidation spray layer, a first gas cap layer, an ammonia spray distribution layer, a second gas cap layer, an ammonia absorption spray layer, a demister, and a flue gas outlet are sequentially arranged in the desulfurization and denitrification tower from bottom to top; the desulfurization and denitrification absorption device also includes an oxidant supply tank and a buffer tank. The desulfurization and denitrification absorption device of the utility model first oxidizes sulfur dioxide and nitrogen oxides, absorbs them with ammonia water, and then absorbs the overflowed ammonia and the residual sulfur dioxide and nitrogen oxides from oxidation with hydrogen peroxide. The desulfurization and denitrification absorption device of the utility model has high desulfurization efficiency, high denitrification efficiency, and less ammonia overflow;

[0004] The above application document can achieve efficient desulfurization and denitrification effects by setting up an air cap layer, but the structure is complex and it is difficult to ensure the contact area between the exhaust gas and the fluid sprayed from the spray seat according to demand, and thus it is difficult to ensure the desulfurization and denitrification effects.

[0005] Therefore, we proposed a wet desulfurization and denitrification absorption device. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the utility model provides a wet desulfurization and denitrification absorption device, which solves the problem that the existing devices are difficult to efficiently desulfurize and denitrify the exhaust gas according to demand.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A wet desulfurization and denitrification absorption device, comprising a desulfurization and denitrification tower, the main body of the desulfurization and denitrification tower being a tower barrel, a spray seat for spraying absorption liquid into the inside of the tower barrel being fixedly installed on the top of the tower barrel, and a base being fixedly installed on the bottom of the tower barrel;

[0008] The feature is that: a fan is fixedly installed on the top side of the tower, and a liquid seat is fixedly installed on the bottom side of the tower;

[0009] The liquid seat includes a bottom plate on the bottom side and a top plate on the top side.

[0010] Preferably, the bottom plate is provided with bottom holes distributed in a filling manner, and the bottom holes are regular hexagonal grooves;

[0011] Among them, the setting of the bottom holes on the chassis can provide a hole groove for the liquid flow to flow downward, and at the same time provide a channel for the exhaust gas input from the bottom side, so that it can fully contact with the liquid flow and ensure its contact area, thereby achieving the effect of efficient desulfurization and denitrification of the exhaust gas.

[0012] Preferably, the top plate is provided with top holes distributed in a filling manner, the top holes are circular grooves, and each group of top holes and the bottom holes on the bottom side thereof are staggered.

[0013] Among them, the setting of the top plate and the top hole can enable the liquid flow on the top side to flow into the bottom plate on the bottom side, so that a water curtain is generated between them, which is in full contact with the exhaust gas passing through, ensuring the contact area, and thus achieving the effect of efficient desulfurization and denitrification of the exhaust gas in contact.

[0014] Preferably, the fan blades are arc-shaped blades, and fifteen groups of fan blades distributed in a ring are fixedly installed on the top of the inner side of the tower, and the outer wall surfaces of the fan blades are all arc-shaped surfaces;

[0015] Among them, the setting of the fan blades can enable the liquid flow sprayed from the top side to contact it. The dripping liquid under the influence of gravity bursts into finer water mist, increasing the contact area between it and the exhaust gas, thereby achieving the effect of efficient desulfurization and denitrification.

[0016] Preferably, the inner side of the tower is fixedly sleeved with a filter element cylindrical seat located between the fan blades and the liquid seat;

[0017] Among them, the setting of the filter element cylindrical seat can dredge the exhaust gas and increase the contact area between the exhaust gas and the liquid flow in the filter element.

[0018] Preferably, an exhaust pipe is fixedly installed on the top of the spray seat, and an air inlet pipe is fixedly connected to the outer wall of the base;

[0019] Among them, the air inlet pipe inputs exhaust gas from the bottom side to the inner side of the tower, so that it contacts the liquid flow sprayed therein, achieving the desulfurization and denitrification effect, and the exhaust pipe is set to discharge the purified gas.

[0020] The utility model provides a wet desulfurization and denitrification absorption device, which has the following beneficial effects:

[0021] The wet desulfurization and denitrification absorption device, through the arrangement of fan blades in the tower, can make the droplets sprayed on the top side fall on the fan blades and burst into a larger area of ​​water mist, thereby increasing the contact area between it and the exhaust gas. At the same time, the liquid flow drips onto the liquid seat, passes through the top plate and the top and bottom holes on the bottom plate, and generates a water curtain between them, which contacts the exhaust gas passing through, achieving the effect of efficient desulfurization and denitrification, and solving the problem that the existing device is difficult to efficiently desulfurize and denitrify the exhaust gas according to demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the utility model;

[0023] Figure 2 This is a structural diagram of the top side of the tower of the utility model;

[0024] Figure 3 This is a structural diagram of the bottom side of the tower of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the liquid seat of the utility model.

[0026] In the figure: 1. Desulfurization and denitrification tower; 11. Tower; 111. Fan blade; 112. Liquid seat; 1121. Base plate; 1122. Bottom hole; 1123. Top plate; 1124. Top hole; 12. Spray seat; 13. Exhaust pipe; 14. Base; 15. Inlet pipe. DETAILED DESCRIPTION

[0027] The following will be combined with the 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.

[0028] See also Figure 1-4 The embodiment of the utility model provides a technical solution: a wet desulfurization and denitrification absorption device, including a desulfurization and denitrification tower 1, the main body of the desulfurization and denitrification tower 1 is a tower 11, the top of the tower 11 is fixedly installed with a spray seat 12 for spraying absorption liquid into the inside thereof, and the bottom of the tower 11 is fixedly installed with a base 14; it is characterized in that: a fan 111 is fixedly installed on the top side of the tower 11, and a liquid seat 112 is fixedly installed on the bottom side of the tower 11; the liquid seat 112 includes a bottom bottom plate 1121 and a top plate 1123;

[0029] Among them, the wet desulfurization and denitrification absorption device, through the arrangement of the fan blades 111 in the tower 11, can make the droplets sprayed on the top side fall on the fan blades 111 and burst into a larger area of ​​water mist, thereby increasing the contact area between it and the exhaust gas. At the same time, the liquid flow drips onto the liquid seat 112, and the liquid flow passes through the top plate 1123 and the top hole 1124 and the bottom hole 1122 on the bottom plate 1121, and generates a water curtain between them, which contacts the exhaust gas passing through, thereby achieving the effect of efficient desulfurization and denitrification, and solving the problem that the existing device is difficult to efficiently desulfurize and denitrify the exhaust gas according to demand.

[0030] Example 2:

[0031] The chassis 1121 is provided with bottom holes 1122 in a filled distribution, and the bottom holes 1122 are regular hexagonal grooves; wherein, the setting of the bottom holes 1122 on the chassis 1121 can provide holes and grooves for the liquid flow to flow downward, and at the same time provide a channel for the exhaust gas input from the bottom side, so that it can fully contact with the liquid flow and ensure its contact area, thereby achieving the effect of efficient desulfurization and denitrification of the exhaust gas.

[0032] The top plate 1123 is provided with top holes 1124 in a filled distribution, the top holes 1124 are circular grooves, and each group of top holes 1124 and the bottom holes 1122 on the bottom side are staggered. The setting of the top plate 1123 and the top holes 1124 can enable the liquid flow on the top side to flow into the bottom plate 1121 on the bottom side, so that a water curtain is generated therebetween, which is in full contact with the exhaust gas passing through, thereby ensuring the contact area, and thereby achieving the effect of efficient desulfurization and denitrification of the exhaust gas in contact.

[0033] The fan blades 111 are arc-shaped blades. Fifteen groups of fan blades 111 distributed in a ring are fixedly installed on the top of the inner side of the tower 11, and the outer wall surfaces of the fan blades 111 are all arc-shaped surfaces. Among them, the setting of the fan blades 111 can enable the liquid flow sprayed from the top side to contact with it, and the dripping liquid under the influence of gravity bursts into finer water mist, increasing the contact area between the exhaust gas and the exhaust gas, thereby achieving the effect of efficient desulfurization and denitrification.

[0034] The inner side of the tower 11 is fixedly sleeved with a filter element cylindrical seat located between the fan blades 111 and the liquid seat 112; wherein, the setting of the filter element cylindrical seat can dredge the exhaust gas and increase the contact area between the exhaust gas and the liquid flow in the filter element.

[0035] An exhaust pipe 13 is fixedly installed on the top of the spray seat 12, and an air intake pipe 15 is fixedly connected to the outer wall of the base 14; wherein, the air intake pipe 15 inputs exhaust gas from the bottom side to the inner side of the tower 11, so that it contacts the liquid flow sprayed therein, achieving the desulfurization and denitrification effect, and the exhaust pipe 13 is set to discharge the purified gas.

[0036] The working principle and usage process of the present invention are as follows: when the device is required to work, exhaust gas is input from the air inlet pipe 15 on the base 14 on the bottom side, so that it is input into the inner side of the tower 11 from the bottom side, and at the same time, the spray seat 12 on the top side of the tower 11 outputs liquid flow downward, which first contacts the fan blades 111 and causes the droplets to burst into a larger water mist under the influence of gravity, thereby increasing the contact area with the exhaust gas. At the same time, the dripping fluid falls on the liquid seat 112 from the top side, passes through the top hole 1124 and the bottom hole 1122, and a water curtain is generated between them, which is in complete contact with the exhaust gas passing through, thereby achieving the effect of efficient desulfurization and denitrification purification of the exhaust gas.

[0037] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0038] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A wet desulfurization and denitration absorption device, comprising a desulfurization and denitration tower (1), wherein the main body of the desulfurization and denitration tower (1) is a tower barrel (11), a spray seat (12) for spraying absorption liquid into the inside of the tower barrel (11) is fixedly installed on the top of the tower barrel (11), and a base (14) is fixedly installed on the bottom of the tower barrel (11); Its characteristics are: A fan blade (111) is fixedly installed on the top side of the tower (11), and a liquid seat (112) is fixedly installed on the bottom side of the tower (11); The liquid seat (112) includes a bottom plate (1121) on the bottom side and a top plate (1123) on the top side.

2. A wet desulfurization and denitrification absorption device according to claim 1, characterized in that: The bottom plate (1121) is provided with bottom holes (1122) distributed in a filling manner, and the bottom holes (1122) are regular hexagonal grooves.

3. A wet desulfurization and denitrification absorption device according to claim 2, characterized in that: The top plate (1123) is provided with top holes (1124) distributed in a filling manner. The top holes (1124) are circular grooves, and each group of top holes (1124) and the bottom holes (1122) on the bottom side thereof are distributed in a staggered manner.

4. A wet desulfurization and denitrification absorption device according to claim 1, characterized in that: The fan blades (111) are arc-shaped blades. Fifteen groups of fan blades (111) distributed in a ring are fixedly installed on the top of the inner side of the tower (11), and the outer wall surfaces of the fan blades (111) are all arc-shaped surfaces.

5. The wet desulfurization and denitrification absorption device according to claim 1, characterized in that: The inner side of the tower (11) is fixedly sleeved with a filter element cylindrical seat located between the fan blades (111) and the liquid seat (112).

6. A wet desulfurization and denitrification absorption device according to claim 1, characterized in that: An exhaust pipe (13) is fixedly installed on the top of the spray seat (12), and an air inlet pipe (15) is fixedly connected to the outer wall of the base (14).

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