CN213763365U

CN213763365U - Food oil smoke waste gas treatment device

Info

Publication number: CN213763365U
Application number: CN202022747502.4U
Authority: CN
Inventors: 左小伟; 刘佳琳; 刘佳佳; 魏俊敏; 张利利; 左阳阳; 张赞森
Original assignee: Henan Lance Environmental Protection Technology Co ltd
Current assignee: Henan Lance Environmental Protection Technology Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-07-23
Anticipated expiration: 2030-11-24

Abstract

A food oil smoke waste gas treatment device comprises a waste gas collecting cover, a spraying cooling tower, an oil smoke purifier and a biological purification tower, wherein an outlet of the waste gas collecting cover is connected with a dust-containing gas inlet of the spraying cooling tower, an outlet of the spraying cooling tower is connected with an inlet of the oil smoke purifier, and an outlet of the oil smoke purifier is connected with an inlet of the biological purification tower through an induced draft fan; the treatment process of the utility model has convenient operation and management, safe, stable and reliable long-term operation, and better working environment and labor condition; has high safety and easy operation.

Description

Food oil smoke waste gas treatment device

Technical Field

The utility model relates to an oil smoke waste gas treatment technical field especially relates to food oil smoke waste gas treatment device.

Background

In an instant noodle production line of an existing instant noodle manufacturer, oil fume waste gas generated in a frying process of noodle blocks is collected and then enters a two-stage biological purification tower for treatment, and then is discharged through an exhaust funnel with the height of 15 meters, wherein the current waste gas meets the requirement of highest allowable oil fume emission concentration of 2.0mg/m3 in oil fume emission standard GB18483-2001 in catering industry. In order to further control the emission of atmospheric pollutants and greatly improve the pollution control level of the catering industry, the government of the Henan province approves and releases 'oil smoke pollutant emission standard of the catering industry' DB 41/1604-.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a food oil smoke waste gas treatment device.

The utility model adopts the technical proposal that:

the utility model provides a food oil smoke waste gas treatment device, collects cover, spray cooling tower, oil smoke clarifier and biological purification tower including waste gas, waste gas collect the export of cover and be connected with the dirty gas import of spray cooling tower, the spray cooling tower export of spray cooling tower is connected with the entry of oil smoke clarifier, the export of oil smoke clarifier is connected with the entry of biological purification tower through the draught fan.

The spray cooling tower inside from the top down set gradually remove the fog layer, spray layer and circulating water pond one, remove the fog layer in set up defroster one, it is provided with the three-layer to spray the layer, every layer sprays the layer and includes a trunk line and a plurality of shower that are connected with the trunk line, all is provided with the spiral nozzle on every shower.

One side of the bottom of the first circulating water tank is provided with a sewage discharge outlet, the other side of the first circulating water tank is provided with a first circulating water pump, the first circulating water pump is connected with a circulating water pipe, and the circulating water pipe is connected with a main pipeline of the spraying layer.

The inside of the biological purification tower is provided with a demister, a leaching layer, a biological filler layer and a second circulating water tank from top to bottom in sequence, the leaching layer and the biological filler layer are both two layers and are alternately arranged, and the top of the biological purification tower is provided with a purified gas outlet.

The leaching layer comprises a leaching main pipeline, a leaching sprayer is arranged on the leaching main pipeline, a drain outlet II is arranged on one side of the bottom of the circulating water tank II, a circulating water pump II is arranged on the other side of the bottom of the circulating water tank II, the circulating water pump II is connected with a circulating water pipe, and the circulating water pipe is connected with the leaching main pipeline.

The biological filler layer is a biological film carrier.

The utility model has the advantages that: the utility model discloses an operation management is convenient, and long-term operation is safe, stable, reliable, adopts three kinds of purification treatment modes of spray cooling tower, oil smoke clarifier and biological purification tower, can be with the better purification of oil smoke waste gas, and the waste gas after the purification accords with "catering industry oil smoke pollutant emission standard" and is superior to this standard even.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the spraying layer of the present invention.

In the figure, 1, a waste gas collecting cover, 2, a spraying cooling tower outlet, 3, a demisting layer, 4, a spraying layer, 5, a spiral nozzle, 6, a dust-containing gas inlet, 7, a sewage outlet, 8, a spraying cooling tower, 9, a first circulating water tank, 10, a first circulating water pump, 11, an oil fume purifier, 12, an induced draft fan, 13, a second circulating water tank, 14, a biological purification tower, 15, a second circulating water pump, 16, a biological packing layer, 17, a leaching spray head, 18, a purified gas outlet, 19, a demister, 20, a main pipeline, 21 and a spray pipe.

Detailed Description

As shown in fig. 1-2, a food oil smoke waste gas treatment device comprises a waste gas collecting cover 1, a spraying cooling tower 8, an oil smoke purifier 11 and a biological purification tower 14, wherein the outlet of the waste gas collecting cover 1 is connected with a dust-containing gas inlet 6 of the spraying cooling tower 8, the outlet 2 of the spraying cooling tower 8 is connected with the inlet of the oil smoke purifier 11, and the outlet of the oil smoke purifier 11 is connected with the inlet of the biological purification tower 14 through an induced draft fan 12.

8 inside from the top down of spraying cooling tower have set gradually defogging layer 3, spray layer 4 and circulating water pond 9, defogging layer 3 in set up defroster one, spray layer 4 and be provided with the three-layer, every layer of spraying layer 4 includes a trunk line 20 and a plurality of shower 21 that are connected with trunk line 20, all is provided with spiral nozzle 5 on every shower 21.

One side of the bottom of the first circulating water tank 9 is provided with a sewage discharge outlet 7, the other side of the bottom of the first circulating water tank is provided with a first circulating water pump 10, the first circulating water pump 10 is connected with a circulating water pipe, and the circulating water pipe is connected with a main pipeline 20 of the spraying layer 4.

The interior of the biological purification tower 14 is sequentially provided with a demister 19, a leaching layer, a biological filler layer 16 and a circulating water tank II 13 from top to bottom, the leaching layer and the biological filler layer 16 are both two layers, the leaching layer and the biological filler layer 16 are alternately arranged, and the top of the biological purification tower 14 is provided with a purified gas outlet 18.

The leaching layer comprises a leaching main pipeline, a leaching spray head 17 is arranged on the leaching main pipeline, a drain outlet II is arranged on one side of the bottom of the circulating water tank II 13, a circulating water pump II 15 is arranged on the other side of the bottom of the circulating water tank II, the circulating water pump II 15 is connected with a circulating water pipe, and the circulating water pipe is connected with the leaching main pipeline.

The biological filler layer 16 is a biological membrane carrier.

The project adopts a spray direct cooling method to cool the waste gas, water drops are directly sprayed to high-temperature flue gas flowing through the cooling tower, and the heat of the flue gas is absorbed by sensible heat during water heating and latent heat during evaporation, so that the flue gas is cooled. The latent heat of vaporization of water is utilized, the cooling effect is good, the water consumption is low, and the increase of the smoke volume caused by the evaporation of water is also small.

The spray cooling tower 8 adopts a circular structure, can adopt stainless steel, glass fiber reinforced plastic, PP and other materials, and the flow velocity of the cross section in the tower is generally not more than 1.5-2.5 m/s.

The contact of shower water and flue gas adopts the contact mode against current, contain 3 in the tower and spray the layer, every layer of component that sprays the layer is a shower of taking a plurality of atomizing nozzle, the main effect of shower is in carrying absorption liquid to the tower in, simultaneously for guaranteeing that the coverage that sprays liquid is higher than 300%, stagger between each shower and become certain angle and arrange, form good gas-liquid contact reaction interface, after the flue gas enters into the tower through the entry tangential, at the uniform velocity rotatory rise in the tower, carry out comprehensive high-efficient hybrid contact with vaporific hydrojet.

The spiral nozzle is a typical impact type dispersion spray, the inner part of the nozzle has no structure and is an unobstructed channel, and water flow passes through a layered interface of the impact spiral, so that a layered spray is generated. Formally because the spiral nozzle has no internal structure, impurities in the exhaust gas and waste water can pass through the nozzle in large quantities without clogging. Conventional 120 ° helical nozzles have 3 to 4 spray interfaces, each forming a conical spray face.

The first demister is arranged at the upper part of the spray cooling tower and is used for separating fog drops carried by clean flue gas. The demister mainly comprises a plate and a supporting device. When gas containing mist foam flows through the demister at a certain speed, due to the inertia impact effect of the gas, the mist foam collides with the corrugated plate, and the collected liquid drops are large enough that the gravity generated by the liquid drops exceeds the resultant force of the rising force of the gas and the surface tension of the liquid, and the liquid drops are separated from the surface of the corrugated plate.

The utility model discloses an oil smoke clarifier adopts is industry electrostatic oil smoke clarifier, and its principle is the electron that utilizes the negative pole to launch in high-tension electric field to and the anion that produces by electron collision air molecule catches the oil smoke particle, makes the oil smoke particle electrified, and the effect of recycling electric field makes electrified oil smoke particle adsorbed by the positive pole, in order to reach the purpose that removes the oil smoke.

The utility model discloses the oil smoke clarifier that uses adopts the more common oil smoke clarifier in the market.

The biological purification tower 14 is mainly composed of a stainless steel main tower, a biological membrane carrier containing organisms with dominant microorganisms and a circulating water system. The dominant microorganism is prepared by breeding, transformation, training, culture and compounding, and forms a high-efficiency biological membrane on a biological carrier with proper particle size, porosity, strength and material components through inoculation, addition technology and biological adsorption technology. When toxic and odorous waste gas containing industrial waste gas, volatile organic compounds and the like is introduced into the biological absorption purification tower through a pipeline, the dominant microorganisms grow and propagate by taking pollutants in the waste gas as nutrients, and meanwhile, toxic odorous volatile organic compounds in the waste gas are subjected to biological absorption, decomposition and deodorization treatment, and are discharged after being degraded into nontoxic and odorless gas, so that the aim of purifying the waste gas is fulfilled.

The process introduction is as follows:

the oil smoke waste gas that the shop of making dough produced, the waste gas that collects through the exhaust system covers 1 and gets into spray cooling tower 8 at first, lower the temperature of waste gas to about 50 ℃, then get into industrial electrostatic oil smoke clarifier 11, under the effect of high-pressure static, most oil content in the flue gas is filtered and removed, then get into biological purification tower 14, peculiar smell material in the waste gas is adsorbed by the filler in the biological packing layer 16, carry out high altitude after its oxygenolysis under the influence of filler surface microorganism.

Claims

1. The utility model provides a food oil smoke waste gas treatment device which characterized in that: collect cover (1), spray cooling tower (8), oil smoke clarifier (11) and biological purification tower (14) including waste gas, waste gas collect the export of cover (1) and be connected with dusty gas inlet (6) of spray cooling tower (8), spray cooling tower export (2) of spray cooling tower (8) are connected with the entry of oil smoke clarifier (11), the export of oil smoke clarifier (11) is connected with the entry of biological purification tower (14) through draught fan (12).

2. The food oil smoke waste gas treatment device of claim 1, characterized in that: the spray cooling tower (8) inside from the top down set gradually except that fog layer (3), spray layer (4) and circulating water pond (9), except that fog layer (3) in set up defroster one, spray layer (4) and be provided with the three-layer, every layer sprays layer (4) and includes a trunk line (20) and a plurality of shower (21) that are connected with trunk line (20), all is provided with spiral nozzle (5) on every shower (21).

3. The food oil smoke waste gas treatment device of claim 2, characterized in that: one side of the bottom of the first circulating water tank (9) is provided with a sewage draining outlet (7), the other side of the bottom of the first circulating water tank is provided with a first circulating water pump (10), the first circulating water pump (10) is connected with a circulating water pipe, and the circulating water pipe is connected with a main pipeline (20) of the spraying layer (4).

4. The food oil smoke waste gas treatment device of claim 1, characterized in that: the interior of the biological purification tower (14) is sequentially provided with a demister (19), a leaching layer, a biological filler layer (16) and a circulating water tank II (13) from top to bottom, the leaching layer and the biological filler layer (16) are both two layers, the leaching layer and the biological filler layer (16) are alternately arranged, and the top of the biological purification tower (14) is provided with a purified gas outlet (18).

5. The food oil smoke waste gas treatment device of claim 4, characterized in that: the leaching layer comprises a leaching main pipeline, a leaching spray head (17) is arranged on the leaching main pipeline, a drain outlet II is arranged on one side of the bottom of the circulating water tank II (13), a circulating water pump II (15) is arranged on the other side of the bottom of the circulating water tank II, the circulating water pump II (15) is connected with a circulating water pipe, and the circulating water pipe is connected with the leaching main pipeline.

6. The food oil smoke waste gas treatment device of claim 4, characterized in that: the biological filler layer (16) is a biological membrane carrier.