CN216498444U - Integrated wet waste gas purification system - Google Patents

Abstract

The utility model discloses an integrated wet waste gas purification system which comprises a dust removal tower, wherein the right end of a blower is connected with the waste gas purification tower through a fourth gas pipe and a third gas inlet, a plurality of gas risers are arranged at the top ends of a first tower plate and a second tower plate in a staggered mode, bubble caps are arranged at the top ends of the gas risers, overflow weirs are arranged at one end of the inner side of the second tower plate, and one ends of the outer sides of a liquid return pipe and a liquid inlet pipe are fixedly connected to the upper side and the lower side of one end of the inner side of an absorption liquid circulating device respectively. In the utility model, the first tower plate, the second tower plate, the overflow weir, the gas rising pipe, the bubble cap, the liquid inlet pipe, the liquid return pipe and the absorption liquid circulating device are mutually matched to form a system utilizing the wet-method full-component waste gas purification method, the waste gas treatment efficiency is improved, corresponding components in the waste gas are absorbed by the absorption liquid on each layer of tower plate, and the device has the advantages of wide application range, small occupied space and good purification effect, and is suitable for purification treatment of various waste gases.

Description

An integrated wet exhaust gas purification system

technical field

The utility model relates to the field of waste gas treatment, in particular to an integrated wet waste gas purification system.

Background technique

Air pollutants refer to those substances that are discharged into the atmosphere due to human activities or natural processes and have harmful effects on humans or the environment. There are many types of air pollutants, which can be divided into aerosol pollutants and gaseous pollutants according to their characteristics. There are two types of pollutants. Aerosol pollutants refer to solid particles and liquid particles in the air, or suspensions of solid and liquid particles in gaseous media. Gaseous pollutants in the atmosphere exist in a molecular state. The types of gaseous pollutants There are many, most of which are inorganic gases. The common ones are sulfur-containing compounds mainly composed of sulfur dioxide, nitrogen compounds mainly composed of nitric oxide and nitrogen dioxide; carbon oxides mainly composed of carbon monoxide and carbon dioxide; Hydrocarbons dominated by olefins and aromatic hydrocarbons, halogen compounds dominated by hydrogen fluoride and hydrogen chloride, which can affect the global greenhouse effect and ozone layer destruction, as small as acid rain and photochemical pollution in individual regions. The problems are all caused by gaseous pollution.

The treatment of aerosol pollutants is mainly based on dust removal, including spray dust removal, gravity sedimentation, cyclone dust removal, electrostatic dust removal, bag dust removal and other methods. Different methods should be used for gaseous pollutants due to different components. Calcium oxide is used for absorption, which can be divided into dry, semi-dry and wet desulfurization according to the different states of calcium oxide; nitrogen oxides are mainly treated by reducing combustion and chemical absorption, and halogen compounds such as hydrogen fluoride are mainly treated by activated carbon adsorption and desulphurization. Chemical absorption, due to the complex composition of waste gas generated in actual production, often dust, fly ash, nitrogen oxides, sulfides, halides and other pollutants need to be treated, and various corresponding treatment devices need to be used in combination to achieve standard emissions. .

Utility model content

The purpose of the utility model is to propose an integrated wet waste gas purification system in order to solve the shortcomings existing in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an integrated wet waste gas purification system, comprising a dust removal tower, a water pipe is arranged on the top of the left end of the dust removal tower, and a spray circulation device is fixedly connected to the left end of the water pipe, A first air outlet is arranged in the middle of the top of the dust removal tower, the top of the first air outlet is connected with a blower through a first air pipe, and the right end of the blower is connected with an exhaust gas purification tower through a fourth air pipe and a third air inlet. The inner wall of the exhaust gas purification tower is fixedly connected with a plurality of first trays, the inner wall of the exhaust gas purification tower is fixedly connected with a second tray between the first trays, and the tops of the first tray and the second tray are staggered. a plurality of gas risers, the tops of the gas risers are all provided with bubble caps, one end of the inner side of the second tray is provided with an overflow weir, and the waste gas purification tower is provided with a liquid return pipe on the upper side near the first tray, The waste gas purification tower is provided with a liquid inlet pipe on the upper side near the second tray, and the liquid return pipe and the outer end of the liquid inlet pipe are fixedly connected to the upper and lower sides of the inner end of the absorption liquid circulation device, respectively. The waste gas purification tower The top is provided with a second air outlet, the top of the second air outlet is connected with an activated carbon adsorber through the second air pipe and the second air inlet, and a third air outlet is arranged in the middle of the top of the activated carbon adsorber. The top of the air port is connected with an induced draft fan through a third air pipe, and a controller is fixedly connected to the middle of the front end of the activated carbon adsorber.

As a further description of the above technical solutions:

The right end of the third air inlet is arranged at the left end of the exhaust gas purification tower.

As a further description of the above technical solutions:

The right end of the second air inlet is arranged at the left end of the activated carbon adsorber.

As a further description of the above technical solution:

The top of the inner diameter of the first air outlet, the second air outlet and the third air outlet are all provided with a defoaming device.

As a further description of the above technical solutions:

A plurality of spray heads are evenly arranged on the right side of the bottom end of the water pipe.

As a further description of the above technical solution:

The middle part of the left end of the dust removal tower is provided with a first air inlet.

As a further description of the above technical solutions:

The right end of the induced draft fan is connected with an exhaust cylinder through a pipeline.

As a further description of the above technical solutions:

The spray circulation device, the blower, the absorption liquid circulation device and the induced draft fan are all electrically connected with the controller.

The utility model has the following beneficial effects:

In the utility model, the waste gas enters the dust removal tower through the first air inlet, and is sent to the waste gas purification tower by the blower after being dedusted by the spray circulation device, the water pipe and the nozzle. The first plate, the second plate, the overflow weir, the gas riser, the bubble cap, the liquid inlet pipe, the liquid return pipe and the absorption liquid circulation device cooperate with each other to form a whole-component waste gas purification using the wet method. The system of the method is not only convenient for later maintenance, but also improves the efficiency of waste gas treatment, which is conducive to the standardization and modularization of the absorption tower. It is discharged into the activated carbon adsorber. The activated carbon adsorber absorbs the residual pollutants in the exhaust gas. After the treatment, the exhaust gas reaches the emission standard and is discharged through the exhaust pipe. This device has a wide range of applications, small footprint and good purification effect. Purification treatment.

Description of drawings

Fig. 1 is the structural representation of a kind of integrated wet waste gas purification system proposed by the utility model;

Fig. 2 is an enlarged view at A in Fig. 1;

FIG. 3 is an enlarged view of B in FIG. 2 .

illustration:

1. Dust removal tower; 2. The first air inlet; 3. The spraying circulation device; 4. The first air outlet; 5. The defoaming device; 6. The first gas pipe; pipe; 9, liquid inlet pipe; 10, the first tray; 11, gas riser; 12, the second gas outlet; 13, the second tray; 14, the second gas pipe; 15, the third gas outlet; 16, the first Three air pipes; 17, exhaust pipe; 18, induced draft fan; 19, controller; 20, activated carbon adsorber; 21, the second air inlet; 22, exhaust gas purification tower; 23, the third air inlet; 24, the first Four air pipes; 25, blower; 26, water pipe; 27, nozzle; 28, bubble cap; 29, overflow weir.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific orientation. Therefore, it should not be construed as a limitation to the present invention; the terms "first", "second" and "third" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance. In addition, Unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, It can also be an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

1-3, an embodiment provided by the present utility model: an integrated wet waste gas purification system, including a dust removal tower 1, the top of the left end of the dust removal tower 1 is provided with a water pipe 26, and the left end of the water pipe 26 is fixedly connected with a spray circulation The device 3 is used to dedust the exhaust gas. A first air outlet 4 is provided in the middle of the top of the dust removal tower 1. The top of the first air outlet 4 is connected with a blower 25 through the first air pipe 6. The right end of the blower 25 passes through the fourth air pipe 24 and the third air inlet. 23 is connected with a waste gas purification tower 22, and the waste gas is sent into the waste gas purification tower 22, the inner wall of the waste gas purification tower 22 is fixedly connected with a plurality of first trays 10, and the inner wall of the exhaust gas purification tower 22 is fixedly connected between the first trays 10. The top of the second tray 13, the first tray 10 and the second tray 13 are alternately provided with a plurality of gas risers 11, the top of the gas risers 11 are all provided with a bubble cap 28, and one end of the inner side of the second tray 13 is provided with an overflow Weir 29, the N-layer column plate in the tower body, the outer diameter of the N-th layer column plate is matched with the inner diameter of the column body to realize radial sealing of the column body, and an overflow port is formed between the N-1 layer column plate and the inner wall of the column, The waste gas purification tower 22 is provided with a liquid return pipe 8 near the upper side of the first tray 10, and the waste gas purification tower 22 is provided with a liquid inlet pipe 9 near the upper side of the second tray 13. The liquid return pipe 8 and the outside of the liquid inlet pipe 9 One end is fixedly connected to the upper and lower sides of the inner end of the absorption liquid circulation device 7 to form a system using the wet method of full-component exhaust gas purification method, which is convenient for later maintenance and improves the efficiency of exhaust gas treatment, which is conducive to the standardization of the absorption tower. Modularized, the top of the exhaust gas purification tower 22 is provided with a second air outlet 12, the top of the second air outlet 12 is connected with an activated carbon adsorber 20 through the second air pipe 14 and the second air inlet 21, and the middle of the top of the activated carbon adsorber 20 is provided. Three air outlets 15, the top of the third air outlet 15 is connected with an induced draft fan 18 through the third air pipe 16 to discharge the purified exhaust gas, and a controller 19 is fixedly connected to the middle of the front end of the activated carbon adsorber 20, and the exhaust gas enters through the first air inlet 2. The dust removal tower 1 is sent to the waste gas purification tower 22 by the blower 25 after the dust is removed by the spray circulation device 3, the water pipe 26 and the nozzle 27. The first tray 10, the second tray 13, the overflow weir 29, the gas riser 11, the bubble cap 28, the liquid inlet pipe 9, the liquid return pipe 8 and the absorption liquid circulation device 7 cooperate with each other to form a full-component wet method. The system of waste gas purification method not only facilitates post-maintenance, but also improves the efficiency of waste gas treatment, which is conducive to the standardization and modularization of absorption towers. The top of the tower 22 is discharged into the activated carbon adsorber 20, and the activated carbon adsorber 20 absorbs the residual pollutants in the exhaust gas. After the treatment, the exhaust gas reaches the emission standard and is discharged through the exhaust pipe 17. This device has a wide range of applications, small footprint and good purification effect. It is suitable for the purification treatment of various exhaust gases.

The right end of the third air inlet 23 is arranged at the left end of the exhaust gas purification tower 22, and the right end of the second air inlet 21 is arranged at the left end of the activated carbon adsorber 20 to facilitate the entry of waste gas. The first air outlet 4, the second air outlet 12 and the third outlet The top of the inner diameter of the air port 15 is provided with a de-foaming device 5 to prevent the moisture in the absorption liquid and the spray liquid from being carried out by the exhaust gas, causing corrosion and blockage of the flue pipeline. For dust removal, a first air inlet 2 is arranged in the middle of the left end of the dust removal tower 1, the exhaust gas enters the dust removal tower 1, the right end of the induced draft fan 18 is connected with an exhaust pipe 17 through a pipeline, and the purified gas is discharged. The spray circulation device 3, the blower 25. Both the absorption liquid circulation device 7 and the induced draft fan 18 are electrically connected to the controller 19, and the control device operates normally.

Working principle: the exhaust gas enters the dust removal tower 1 through the first air inlet 2, passes through the spray circulation device 3, the water pipe 26 and the nozzle 27 for dust removal, and then is sent to the exhaust gas purification tower 22 by the blower 25. The upper layer passes through a plurality of trays, and passes through the first tray 10, the second tray 13, the overflow weir 29, the gas riser 11, the bubble cap 28, the liquid inlet pipe 9, the liquid return pipe 8 and the absorption liquid circulation device 7. Cooperate with each other to form a system that utilizes the wet full-component exhaust gas purification method, which not only facilitates later maintenance, but also improves the efficiency of exhaust gas treatment, which is conducive to the standardization and modularization of the absorption tower. The absorbing liquid is absorbed, and the purified gas is discharged from the top of the exhaust gas purification tower 22 into the activated carbon adsorber 20. The activated carbon adsorber 20 absorbs the residual pollutants in the exhaust gas, and the treated exhaust gas reaches the emission standard and is discharged through the exhaust pipe 17. This device is suitable for It has a wide range, small footprint and good purification effect, and is suitable for the purification treatment of various waste gases.

Finally, it should be noted that the above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. , it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model, All should be included within the protection scope of the present invention.

Claims (8)

1. The utility model provides an integration wet process exhaust gas purification system, includes gas wash tower (1), its characterized in that: the top of the left end of the dust removing tower (1) is provided with a water pipe (26), the left end of the water pipe (26) is fixedly connected with a spraying circulating device (3), the middle part of the top end of the dust removing tower (1) is provided with a first air outlet (4), the top end of the first air outlet (4) is connected with an air blower (25) through a first air pipe (6), the right end of the air blower (25) is connected with a waste gas purification tower (22) through a fourth air pipe (24) and a third air inlet (23), the inner wall of the waste gas purification tower (22) is fixedly connected with a plurality of first tower plates (10), the inner wall of the waste gas purification tower (22) is fixedly connected with second tower plates (13) between the first tower plates (10), the top ends of the first tower plates (10) and the second tower plates (13) are provided with a plurality of air risers (11) in a staggered manner, the top ends of the air risers (11) are provided with bubble caps (28), one end of the inner side of each second tower plate (13) is provided with an overflow weir (29), the waste gas purification tower (22) is provided with a liquid return pipe (8) close to the upper side of the first tower plate (10), the waste gas purification tower (22) is provided with a liquid inlet pipe (9) close to the upper side of the second tower plate (13), the outer ends of the liquid return pipe (8) and the liquid inlet pipe (9) are respectively and fixedly connected with the upper side and the lower side of one end of the inner side of the absorption liquid circulating device (7), a second air outlet (12) is arranged at the top end of the waste gas purification tower (22), the top end of the second air outlet (12) is connected with an activated carbon adsorber (20) through a second air pipe (14) and a second air inlet (21), a third air outlet (15) is arranged in the middle of the top end of the activated carbon absorber (20), the top end of the third air outlet (15) is connected with a draught fan (18) through a third air pipe (16), the middle part of the front end of the activated carbon adsorber (20) is fixedly connected with a controller (19).

2. An integrated wet flue gas purification system according to claim 1, wherein: the right end of the third air inlet (23) is arranged at the left end of the waste gas purification tower (22).

3. An integrated wet flue gas purification system according to claim 1, wherein: the right end of the second air inlet (21) is arranged at the left end of the activated carbon absorber (20).

4. An integrated wet flue gas purification system according to claim 1, wherein: and the inner diameter tops of the first air outlet (4), the second air outlet (12) and the third air outlet (15) are all provided with a defoaming device (5).

5. An integrated wet flue gas purification system according to claim 1, wherein: a plurality of spray heads (27) are uniformly arranged on the right side of the bottom end of the water pipe (26).

6. An integrated wet flue gas purification system according to claim 1, wherein: the middle part of the left end of the dust removing tower (1) is provided with a first air inlet (2).

7. An integrated wet flue gas purification system according to claim 1, wherein: the right end of the induced draft fan (18) is connected with an exhaust funnel (17) through a pipeline.

8. An integrated wet exhaust gas purification system according to claim 1, wherein: the spraying circulating device (3), the air blower (25), the absorption liquid circulating device (7) and the induced draft fan (18) are all electrically connected with the controller (19).

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