阅读说明：本技术 一种酚氰废水除臭系统及除臭方法 (Phenol-cyanogen wastewater deodorization system and deodorization method ) 是由 吴俊峰 吴玉辉 孙军 于 2021-10-19 设计创作，主要内容包括：本发明涉及环保技术领域,具体涉及一种酚氰废水除臭系统及其除臭方法。包括集气罩、风管、除臭塔、引风机、排气筒,所述除臭塔中间设有隔板将内部一分为二,进气口下方为碱液池,进气口的上方设有多层碱液喷淋层,每层碱液喷淋层下方设有第一填料层,碱液喷淋层上方设有除雾器,除臭塔的顶部安装有等离子除臭装置,等离子除臭装置的出口和除臭塔的排气口之间还设有多层水喷淋层,本发明将碱液喷淋层、第一填料层、除雾器、等离子除臭装置、活性炭填料层、水喷淋层、第二填料层集成到一个除臭塔中,集成度高,方便安装,占地空间小,并且具有去除率高、不存在二次污染、运行成本低、管理方便等优点。(The invention relates to the technical field of environmental protection, and particularly relates to a phenol-cyanogen wastewater deodorization system and a deodorization method thereof. The device comprises a gas collecting hood, a wind pipe, a deodorizing tower, a draught fan and an exhaust funnel, wherein a partition plate is arranged in the middle of the deodorizing tower to divide the interior of the deodorizing tower into two parts, an alkali liquor pool is arranged below an air inlet, a plurality of alkali liquor spraying layers are arranged above the air inlet, a first packing layer is arranged below each alkali liquor spraying layer, a demister is arranged above each alkali liquor spraying layer, a plasma deodorizing device is arranged at the top of the deodorizing tower, and a plurality of water spraying layers are arranged between the outlet of the plasma deodorizing device and the exhaust port of the deodorizing tower.)

1. The utility model provides a phenol cyanogen waste water deodorization system which characterized in that: comprises a gas collecting hood (1), an air pipe (2), a deodorization tower (3), an induced draft fan (4) and an exhaust funnel (5), wherein the gas collecting hood (1) is connected with an air inlet (7) of the deodorization tower (3) through the air pipe (2), an exhaust port (8) of the deodorization tower (3) is sequentially connected with the induced draft fan (4) and the exhaust funnel (5) through the air pipe (2),

the deodorization tower (3) is a cylindrical tower body, a partition plate (6) is arranged in the middle of the deodorization tower to divide the interior of the deodorization tower into two parts, an air inlet (7) and an air outlet (8) are respectively positioned at two sides of the middle lower position of the deodorization tower (3), an alkali liquor pool (9) is arranged below the air inlet (7), a multilayer alkali liquor spraying layer (10) is arranged above the air inlet (7), an alkali liquor pump (11) is arranged outside the deodorization tower (3), an inlet and an outlet of the alkali liquor pump (11) are respectively connected with the alkali liquor pool (9) and the alkali liquor spraying layer (10), a first packing layer (12) is arranged below each alkali liquor spraying layer (10), a demister (13) is arranged above the uppermost alkali liquor spraying layer (10), a plasma deodorization device (14) is installed at the top of the deodorization tower (3), the inlet and the outlet of the plasma deodorization device (14) are respectively communicated with two cavities of the deodorization tower (3), and the outlet of the plasma deodorization device (14) and the air outlet of the deodorization tower (3) are also communicated with the air outlet of the deodorization tower (8) There are multilayer water spray layer (15), gas vent (8) below of deodorization tower (3) still is equipped with clean water basin (16), deodorization tower (3) are equipped with clean water pump (17) outward, the entry and the export of clean water pump (17) are connected with clean water basin (16) and water spray layer (15) respectively.

2. The phenol-cyanogen wastewater deodorization system as claimed in claim 1, wherein: the gas collecting hood (1) is arranged above an oil separation regulating tank, an AS strengthening aeration tank, an anoxic denitrification tank, an aerobic nitrification tank, a BDS-1 tank, a BDS-2/3 tank and a sludge concentration tank of the phenol-cyanogen wastewater treatment system.

3. The phenol-cyanogen wastewater deodorization system as claimed in claim 1, wherein: the first filler layer (12) is a tray and is structurally a square air distribution plate with a flange, and small holes are uniformly and densely distributed in a bottom plate of the tray.

4. The phenol-cyanogen wastewater deodorization system as claimed in claim 1, wherein: the partition plates (6) at the demister (13) are bent outwards, and the flow cross section at the demister (13) is increased.

5. The phenol-cyanogen wastewater deodorization system as claimed in claim 1, wherein: a second packing layer (19) is arranged under each water spraying layer (15).

6. The phenol-cyanogen wastewater deodorization system as claimed in claim 1, wherein: an active carbon filler layer (18) is also arranged between the outlet of the plasma deodorization device (14) and the uppermost water spray layer (15).

7. The phenol-cyanogen wastewater deodorization system as claimed in claim 1, wherein: the demister (13) is a baffle plate demister (13) or a wire mesh demister (13).

8. The phenol-cyanogen wastewater deodorization system as claimed in claim 1, wherein: the alkali liquor spraying layer (10) and the spraying layer are both made of FRP pipes, and the nozzles are hollow cone nozzles.

9. A phenol-cyanogen wastewater deodorization method is characterized in that: the method is characterized in that a gas collecting hood (1) is covered on each processing pool of a phenol-cyanogen wastewater processing system, a draught fan (4) generates negative pressure, odor in the gas collecting hood (1) is introduced into a deodorizing tower (3) for processing, the deodorizing tower (3) is divided into two cavities by a partition plate (6), a lye pump (11), a lye spraying layer (10) and a first packing layer (12) are arranged in the first cavity, so that the odor is fully contacted with the lye for primary processing, then, the odor is dehumidified by a demister (13), the demisted odor reaches a plasma deodorizing device (14) at the top of the tower, large-particle pollutants are converted into simple small molecular substances, the decomposed odor is deflected downwards and is adsorbed by an active carbon packing layer (18), and finally, the second cavity of the deodorizing tower (3) is internally provided with a clean water pump (17), a clean water spraying layer (15) and a second packing layer (19) for secondary processing of the decomposed odor, and finally, the air is sucked out by a draught fan (4) and then is discharged to the high altitude from an exhaust funnel (5).

Technical Field

The invention relates to the technical field of environmental protection, and particularly relates to a phenol-cyanogen wastewater deodorization system and a deodorization method thereof.

Background

The phenol-cyanogen wastewater treatment station is mainly used in coking engineering, the odor is dissipated when the phenol-cyanogen wastewater is treated, and substances generating the odor in the sewage treatment process mainly comprise carbon, nitrogen and sulfur elements. Most of the odorous substances are organic, and only a few are inorganic compounds. According to the data, the concentration of ammonia is highest in terms of composition, and hydrogen sulfide is the second; while methyl mercaptan is the largest in terms of odor intensity, followed by hydrogen sulfide (which has an odor intensity reaching a strong odor level), which is one of the main substances that generate a foul odor.

In the prior art, a biological deodorization or ion deodorization method is mainly adopted, the biological deodorization effect is good, the operating cost is low, the initial investment is low, but the land is large, a nutrient is required to be continuously added, a supplementary filler is required to be replaced, the air inlet amount of a system and the temperature and humidity in the device are strictly controlled, the requirements on later-stage operation and maintenance are high, and the operating cost is also high; plasma deodorization is sent out and is needed many equipment series connection operation, and the integrated level is not high, and occupation space is little, and the installation is inconvenient.

Disclosure of Invention

The invention solves the problems that: the phenol-cyanogen wastewater deodorization system with high integration level is provided aiming at the problems of large occupied space and low integration level of the phenol-cyanogen wastewater deodorization system in the prior art.

The invention is realized by the following technical proposal, a phenol-cyanogen wastewater deodorization system and a deodorization method thereof, which comprises a gas collecting hood, an air pipe, a deodorization tower, an induced draft fan and an exhaust funnel, wherein the gas collecting hood is connected with the air inlet of the deodorization tower through the air pipe, the exhaust port of the deodorization tower is sequentially connected with the induced draft fan and the exhaust funnel through the air pipe,

the deodorization tower is a cylindrical tower body, a partition plate is arranged in the middle to divide the interior into two parts, an air inlet and an air outlet are respectively positioned at two sides of the lower position in the deodorization tower, an alkali liquor pool is arranged below the air inlet, a multi-layer alkali liquor spraying layer is arranged above the air inlet, an alkali liquor pump is arranged outside the deodorization tower, an inlet and an outlet of the alkali liquor pump are respectively connected with the alkali liquor pool and the alkali liquor spraying layer, a first packing layer is arranged below each alkali liquor spraying layer, a demister is arranged above the uppermost alkali liquor spraying layer, the top of the deodorization tower is provided with a plasma deodorization device, the inlet and the outlet of the plasma deodorization device are respectively communicated with the two cavities of the deodorization tower, a multilayer water spray layer is arranged between the outlet of the plasma deodorization device and the exhaust port of the deodorization tower, and a clean water tank is also arranged below the exhaust port of the deodorization tower, a clean water pump is arranged outside the deodorization tower, and the inlet and the outlet of the clean water pump are respectively connected with the clean water tank and the water spray layer.

Furthermore, the gas collecting hood is arranged above an oil separation adjusting tank, an AS intensified aeration tank, an anoxic denitrification tank, an aerobic nitrification tank, a BDS-1 tank, a BDS-2/3 tank and a sludge concentration tank of the phenol-cyanogen wastewater treatment system.

Furthermore, the first packing layer is a tray and is structurally a square air distribution plate with a flange, and small holes are uniformly and densely distributed in a bottom plate of the tray.

Furthermore, the partition plate at the demister is bent outwards, so that the flow cross section at the demister is increased.

And further, a second packing layer is arranged below each water spraying layer.

Further, an activated carbon filler layer is arranged between the outlet of the plasma deodorization device and the uppermost water spraying layer.

Further, the demister is a baffle plate demister or a wire mesh demister.

Furthermore, the alkali liquor spraying layer and the spraying layer are both made of FRP pipes, and the nozzles are hollow cone nozzles.

The invention also provides a method for deodorizing phenol-cyanogen wastewater, which comprises the steps of adopting a gas collecting hood to cover each treatment tank of a phenol-cyanogen wastewater treatment system, generating negative pressure by an induced draft fan, introducing odor in the gas collecting hood into a deodorizing tower for treatment, dividing the deodorizing tower into two cavities by a partition plate, fully contacting the odor and alkali liquor in the first cavity through an alkali liquor pump, an alkali liquor spraying layer and a first packing layer for primary treatment, then dehumidifying through a demister, enabling the demisted odor to reach a plasma deodorizing device at the tower top, converting large-particle pollutants into simple small-molecule substances, deflecting the decomposed odor downwards, adsorbing by an active carbon packing layer, performing secondary treatment on the decomposed odor in a second cavity of the deodorization tower by a clean water pump, a clean water spraying layer and a second packing layer, and finally discharging to the high altitude from an exhaust funnel after being sucked out by an induced draft fan.

The invention has the beneficial effects that:

1. the invention adopts the combined process of alkali liquor washing, plasma, activated carbon adsorption and the like, and has the advantages of high removal rate, no secondary pollution, low operation cost, convenient management and the like.

2. The invention integrates the alkali liquor spraying layer, the first packing layer, the demister, the plasma deodorization device, the activated carbon packing layer, the water spraying layer and the second packing layer into a deodorization tower, and has the advantages of high integration level, convenient installation and small occupied space.

Drawings

FIG. 1 is a schematic structural diagram of a phenol-cyanogen wastewater deodorization system and a deodorization method thereof according to the present invention.

In the figure: 1, a gas-collecting hood; 2, an air pipe; 3, a deodorization tower; 4, a draught fan; 5, an exhaust funnel; 6, a partition board; 7 an air inlet; 8, an exhaust port; 9, an alkali liquor pool; 10 alkali liquor spraying layer; 11 an alkaline liquid pump; 12 a first packing layer; 13 a demister; 14 plasma deodorization device; 15 water spray layer; 16 clean water pool; 17, a clean water pump; 18 active carbon filler layer; 19 a second packing layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in figure 1, the phenol-cyanogen wastewater deodorization system and the deodorization method thereof comprise a gas collecting hood 1, an air pipe 2, a deodorization tower 3, an induced draft fan 4 and an exhaust funnel 5, wherein the gas collecting hood 1 is connected with an air inlet 7 of the deodorization tower 3 through the air pipe 2, an exhaust port 8 of the deodorization tower 3 is sequentially connected with the induced draft fan 4 and the exhaust funnel 5 through the air pipe 2,

the deodorization tower 3 is a cylindrical tower body, a partition plate 6 is arranged in the middle to divide the interior into two parts, an air inlet 7 and an exhaust port 8 are respectively positioned at two sides of the middle lower position of the deodorization tower 3, an alkali liquor pool 9 is arranged below the air inlet 7, a multi-layer alkali liquor spraying layer 10 is arranged above the air inlet 7, an alkali liquor pump 11 is arranged outside the deodorization tower 3, an inlet and an outlet of the alkali liquor pump 11 are respectively connected with the alkali liquor pool 9 and the alkali liquor spraying layer 10, a first packing layer 12 is arranged below each alkali liquor spraying layer 10, a demister 13 is arranged above the uppermost alkali liquor spraying layer 10, a plasma deodorization device 14 is arranged at the top of the deodorization tower 3, an inlet and an outlet of the plasma deodorization device 14 are respectively communicated with two cavities of the deodorization tower 3, a multi-layer water spraying layer 15 is further arranged between the outlet of the plasma deodorization device 14 and the exhaust port 8 of the deodorization tower 3, a clean water pool 16 is further arranged below the exhaust port 8 of the deodorization tower 3, and a clean water pump 17 is arranged outside the deodorization tower 3, and an inlet and an outlet of the clean water pump 17 are respectively connected with a clean water pool 16 and a water spraying layer 15.

In practical application, the gas collecting hood 1 is arranged above an oil separation regulating tank, an AS intensified aeration tank, an anoxic denitrification tank, an aerobic nitrification tank, a BDS-1 tank, a BDS-2/3 tank and a sludge concentration tank of the phenol-cyanogen wastewater treatment system.

In practical application, the first filler layer 12 is a tray, and the structure thereof is a square air distribution plate with a flange, and small holes are uniformly and densely distributed on a bottom plate of the tray.

In practical application, the partition plate 6 at the demister 13 is bent outwards to increase the flow cross section at the demister 13.

In practical application, a second packing layer 19 is arranged below each water spraying layer 15.

In practical application, an activated carbon filler layer 18 is also arranged between the outlet of the plasma deodorization device 14 and the uppermost water spraying layer 15.

In practical application, the demister 13 is a baffle demister 13 or a wire mesh demister 13.

In practical application, the alkali liquor spraying layer 10 and the spraying layer are both made of FRP pipes, and the nozzles are hollow cone nozzles.

In another aspect of the invention, a method for deodorizing phenol-cyanogen wastewater is provided, wherein a gas-collecting hood 1 is covered on each treatment tank of a phenol-cyanogen wastewater treatment system, a draught fan 4 generates negative pressure, odor in the gas-collecting hood 1 is introduced into a deodorizing tower 3 for treatment, the deodorizing tower 3 is divided into two cavities by a partition plate 6, the first cavity is internally provided with an alkali liquor pump 11, an alkali liquor spraying layer 10 and a first packing layer 12, so that the odor and the alkali liquor are fully contacted for primary treatment, then a demister 13 is used for dehumidification, the demisted odor reaches a plasma deodorizing device 14 at the top of the tower, large-particle pollutants are converted into simple small-molecular substances, the decomposed odor is deflected downwards and is adsorbed by an active carbon packing layer 18, and finally the second cavity of the deodorizing tower 3 is internally provided with a clean water pump 17, a clean water spraying layer 15 and a second packing layer for secondary treatment, and finally, the air is sucked out by a draught fan 4 and then is discharged to the high altitude from an exhaust funnel 5.

In conclusion, the phenol-cyanogen wastewater deodorization system has the advantages of high removal rate, no secondary pollution, low operation cost, high integration level, convenience in installation and small occupied space.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical spirit and features of the present invention, and the present invention is not limited thereto but may be implemented by those skilled in the art.