Deodorization device for sewage treatment tail gas

Abstract

The utility model discloses a deodorization device for sewage treatment tail gas in the technical field of sewage treatment, which is characterized in that a plurality of sewage pools are sequentially connected in series, and a gas collecting cover is arranged at the top of each sewage pool, so that the sewage pools can be capped for protection, personnel can be prevented from falling off, odor can be prevented from drifting away along with wind, and the environmental protection performance can be improved. The sewage treatment device has the advantages that personnel health is protected, the water quality is kept stable, the safety of operators can be improved, waste gas generated in the sewage tank is isolated from air through the gas collecting cover, external air is prevented from reacting with florae of sewage, and a specific environment is formed to perform stable treatment on the sewage; a suction fan is connected to a ventilation pipeline at the top of a gas collection cover, a ventilation pipeline is installed, so that unpleasant gas is sucked, sealed and collected odor is pumped out through the fan, a purification tower is additionally arranged, water is sprayed to the purification tower through a spraying pump for deodorization, and the gas is led to be discharged in a high-environment-friendly mode through an exhaust pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field especially, is a kind of deodorization device for sewage treatment tail gas. BACKGROUND

[0002] After caprolactam raw material is polymerized, granulated and packaged into final product, some residual sewage will be left, these sewage impurities are more, various components cannot be completely separated, also lead to its unable to be recycled and reused again, can only be treated as sewage.

[0003] This kind of sewage containing more organic matter, fermentation speed is fast, bacteria population speed is fast, smell is big. Need to be treated by various bacteria colony and additive to sewage, then can be discharged.

[0004] At present, sewage is treated by sewage pool, because sewage treatment pool needs to be treated by bacteria population, both anaerobic bacteria and aerobic bacteria decompose sewage, at this time, sewage generates a large amount of offensive gas, and bacteria population needs a long time to treat sewage, and offensive odor is emitted for a long time, which will have a great impact on the entire production plant area, foul gas will spread everywhere with wind, increase the pollution to environment and harm to human body. Moreover, sewage pool is generally large and deep, and will cause falling risk to passing personnel.

[0005] Based on this, the utility model discloses a kind of deodorization device for sewage treatment tail gas to solve above-mentioned problem. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of deodorization device for sewage treatment tail gas, the device increases gas collection cover, not only can be covered to sewage pool for protection, avoid personnel to fall, also can avoid smell to float with wind, can improve environmental protection performance, protect personnel health, keep water quality stable, also can improve the security of operator, gas collection cover is isolated from air with the waste gas generated in sewage pool, avoid external air and the reaction of bacteria population of sewage, create specific environment to treat sewage stably;Gas outlet is additionally arranged outside gas collection cover, and ventilation duct is installed, so as to suck offensive gas, the offensive odor collected is extracted using fan, and is sent to purification tower to deodorize, effectively purifies offensive odor, and gas is introduced high environmental protection discharge.

[0007] The utility model is realized as follows: a kind of deodorization device for sewage treatment tail gas, comprising:

[0008] Sewage pool, purification tower, exhaust fan, backwater pipe and spray pump;

[0009] Said sewage pool is a top opening pool, a plurality of said sewage pools are sequentially connected in series, a gas collecting cover is arranged on the top of each said sewage pool, the gas collecting cover can be opened and closed on the top opening of the sewage pool, a ventilation pipe is connected to the top of the gas collecting cover, and the ventilation pipes on the top of each said gas collecting cover are communicated with the same suction fan;

[0010] Said purification tower is a closed cavity, a gas inlet pipe is arranged on the top of the purification tower, a water outlet pipe is arranged at the bottom of the purification tower, a plurality of said purification towers are sequentially connected, the gas inlet pipe of the front-end said purification tower is communicated with the bottom of the inner cavity of the rear-end purification tower, and the water outlet pipe of the front-end said purification tower is communicated with the bottom of the inner cavity of the rear-end purification tower;

[0011] A water return pipe is connected to the water outlet of the last-end said purification tower, the rear end of the water return pipe is communicated with the inner cavity of the front-end sewage pool, and a water return pump is arranged on the water return pipe;

[0012] The bottom of the inner cavity of the front-end said purification tower is communicated with the air outlet of the suction fan, the gas inlet pipe of the last-end said purification tower is communicated with the air inlet of the exhaust fan, and an exhaust pipe is arranged on the air outlet of the exhaust fan;

[0013] The water inlet of the spray pump is connected with an external deoxygenated water pipeline, and the water outlet of the spray pump is connected with a plurality of spray pipes;

[0014] A spray pipe is arranged on the top of the inner cavity of each said purification tower, and a plurality of atomizing nozzles are arranged on the spray pipe.

[0015] Further, the sewage pool has five sewage pools, which are respectively an adjusting pool, an anaerobic pool, an anoxic pool, an aerobic pool and an accumulated liquid pool, and the five sewage pools are sequentially connected from front to back through water pipes.

[0016] Further, the exhaust pipe is vertically arranged, and the top exhaust outlet of the exhaust pipe is above the purification tower.

[0017] Further, the gas collecting cover is a whole sealing cover made of light-shielding glass steel, and the gas collecting cover is sealingly connected with the ventilation pipe on the top through a hose.

[0018] The beneficial effects of the present application are as follows: 1. The device increases the gas collecting cover to cover the sewage pool, effectively seals the open sewage pool, not only avoids the fermentation gas from scattering everywhere, effectively avoids air pollution, but also avoids people from falling into the sewage pool, and the gas collecting cover can block light and isolate the sewage pool, avoid external air and sunlight from irradiating the sewage pool, avoid the influence of the external environment on the bacterial population and sewage, and provide a more stable environment for sewage treatment;

[0019] 2、The device also increases the suction fan, can suck the gas in a variety of different sewage pools, and collects and transports to the purification tower through the ventilation pipeline, and through the spray atomized clean water, the stench components in the odor can be adsorbed and dissolved, and the device is provided with a plurality of purification towers, and different purifying agents can be sprayed in different purification towers when needed, so that the odor can be effectively removed, the deodorization effect is ensured, and the tail gas is discharged at high altitude through the higher exhaust pipe, the surrounding environment is avoided to be polluted, and the harmless gas is quickly lifted to high altitude;

[0020] 3、The device collects the spray liquid in the purification tower, and collects and recycles to the first sewage pool through the backwater pipe and the backwater pump, so that the effect of supplementing water to the sewage is achieved, and additional water is not needed, and the sewage can be directly preliminarily purified in the early stage. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model will be further explained in combination with embodiments with reference to the drawings.

[0022] Figure 1 It is the whole structure schematic diagram of the utility model.

[0023] In the drawings, the component list represented by each sign is as follows:

[0024] 1-sewage pool, 11-gas collection cover, 12-suction fan, 2-purification tower, 21-gas conveying pipe, 22-drain pipe, 3-exhaust fan, 31-exhaust pipe, 4-backwater pipe, 41-backwater pump, 5-spray pump, 51-spray pipe. DETAILED DESCRIPTION

[0025] Please refer to Figure 1 The utility model provides a kind of deodorization device for sewage treatment tail gas, to better understand the above technical solution, the above technical solution will be explained in detail in combination with the drawings and specific embodiments of the specification.

[0026] In one specific embodiment of the technical scheme of the utility model:

[0027] Including sewage pool 1, purification tower 2, exhaust fan 3, backwater pipe 4 and spray pump 5;

[0028] Sewage pool 1 is the pool with top opening, a plurality of sewage pools 1 are sequentially connected,

[0029] Sewage pool 1 has five, five sewage pools 1 are respectively adjusting pool, anaerobic tank, anoxic tank, aerobic tank and liquid accumulation tank, and five sewage pools 1 are sequentially connected by water pipe from front to back.

[0030] Each sewage tank 1 top is provided with a gas collection cover 11, the gas collection cover 11 can open cover in sewage tank 1 top opening, the gas collection cover 11 top is connected with ventilation duct, each gas collection cover 11 top ventilation duct is communicated with the same suction fan 12;

[0031] The gas collection cover 11 is made of light shielding glass steel integral sealing cover, the gas collection cover 11 is connected with the top ventilation duct through the hose sealing. Play the role of isolation of ultraviolet light, to avoid sunlight on the bacterial flora and sewage produce the additional influence that is not needed, also can avoid sewage to receive the illumination change, especially in caprolactam raw material, very easy to receive the illumination change, and caprolactam also needs to avoid not controlled with air contact, especially in anaerobic tank, need to isolate air, the device gas collection cover 11 can play the role of isolation of air, stabilize sewage treatment environment.

[0032] The purification tower 2 is a closed cavity, the purification tower 2 top is provided with gas delivery pipe 21, the purification tower 2 bottom is provided with drain pipe 22, multiple purification tower 2 is connected in turn, and the gas delivery pipe 21 of the front end purification tower 2 is communicated with the bottom of the inner chamber of the rear end purification tower 2, the drain pipe 22 of the front end purification tower 2 is communicated with the bottom of the inner chamber of the rear end purification tower 2;

[0033] The drain of the last end purification tower 2 is connected with the backwater pipe 4, the back end of the backwater pipe 4 is communicated with the inner chamber of the first end sewage tank 1, and the backwater pipe 4 is provided with a backwater pump 5;

[0034] The inner chamber bottom of the first end purification tower 2 is communicated with the air outlet of the suction fan 12, the gas delivery pipe 21 of the last end purification tower 2 is communicated with the air inlet of the exhaust fan 3, and the air outlet of the exhaust fan 3 is provided with an exhaust pipe 31; The exhaust pipe 31 is vertically arranged, and the top air outlet of the exhaust pipe 31 is above the purification tower 2, which ensures that the tail gas is discharged high, avoids the circulation of tail gas in the factory area, and discharges the treated tail gas to high altitude as soon as possible to disperse, avoids the aggregation and diffusion of generated carbon dioxide or other harmless gases.

[0035] The water inlet of the spray pump 5 is connected with the external deoxygenated water pipe, and the water outlet of the spray pump 5 is connected with multiple spray pipes 51;

[0036] The inner chamber top of each purification tower 2 is provided with a spray pipe 51, and multiple atomizing nozzles are arranged on the spray pipe 51, which can more fully contact with the gas of the sewage tank 1, and facilitate the adsorption and dissolution of the foul gas.

[0037] The utility model discloses when using, through the front and rear design of sewage pool 1 in proper order, reach the optimum treatment process of containing caprolactam and other organic matter, the device sets up a gas collection cap 11 at every different sewage pool 1 top, and is connected with the ventilation pipeline through the hose, and through the suction fan 12, the foul gas is sent into the purification tower 2, and through the desalted water of external connection, is sprayed to the inside of purification tower 2 through spray pump 5 and spray pipe 51, effectively foul material is adsorbed and dissolved, reaches the effect of purification, and the gas is sent back through the gas pipe 21 of the top of purification tower 2, enters the second purification tower 2, and the tail gas is handled with multiple sprayings, can the tail gas effective deodorization, when needing, can increase the reagent and spray at spray pump 5, and the water of spraying in purification tower 2 is sent back in proper order through drain pipe 22, and is finally collected by backwater pipe 4, and backwater pump 41 finally sends the water of purification tower 2 to the first sewage pool 1, can preliminary purification sewage, and water circulation is repeatedly used, and will not waste, and sewage flushing and dilution also do not need additional water, energy saving and emission reduction.

[0038] Although the above describes the specific implementation of the utility model, but the skilled person in the art should understand, the specific example that we described is only illustrative, and is not used to limit the scope of the utility model, the equivalent modification and change of the skilled person in the art according to the spirit of the utility model should be covered in the scope of the claim protection of the utility model.

Claims

1. A sewage treatment exhaust gas deodorizing device characterized by comprising: The utility model relates to a sewage treatment device, which comprises a sewage pool (1), a purification tower (2), an exhaust fan (3), a backwater pipe (4) and a spraying pump (5). The sewage pool (1) is a water pool with an open top, and a plurality of sewage pools (1) are connected in series. The purification tower (2) is a closed cavity, and a gas inlet pipe (21) is arranged at the top of the purification tower (2), and a water outlet pipe (22) is arranged at the bottom of the purification tower (2). The backwater pipe (4) is connected to the water outlet of the last purification tower (2), and the backwater pipe (4) is connected to the inner cavity of the first sewage pool (1). The inner cavity of the first purification tower (2) is connected to the air outlet of the suction fan (12), and the gas inlet pipe (21) of the last purification tower (2) is connected to the air inlet of the exhaust fan (3). The exhaust fan (3) is provided with an exhaust pipe (31). The water inlet of the spraying pump (5) is connected to an external deoxidized water pipe, and the water outlet of the spraying pump (5) is connected to a plurality of spraying pipes (51). The inner cavity of each purification tower (2) is provided with a spraying pipe (51), and a plurality of atomizing nozzles are arranged on the spraying pipe (51).

2. The device for deodorizing sewage treatment tail gas according to claim 1, characterized in that: The sewage pool (1) has five sewage pools (1), which are respectively an adjusting pool, an anaerobic pool, an anoxic pool, an aerobic pool and an accumulation pool, and the five sewage pools (1) are connected in series from front to back through water pipes.

3. The device for deodorizing sewage treatment tail gas according to claim 1, characterized in that: The exhaust pipe (31) is vertically arranged, and the top exhaust port of the exhaust pipe (31) is above the purification tower (2).

4. The device for deodorizing sewage treatment tail gas according to claim 1, characterized in that: The gas collecting cover (11) is a whole sealing cover made of light-shielding glass fiber reinforced plastic, and the gas collecting cover (11) is sealingly connected to the top ventilation pipe through a hose.

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