CN217511573U

CN217511573U - Washing and biological deodorization device

Info

Publication number: CN217511573U
Application number: CN202220748242.9U
Authority: CN
Inventors: 宋秀明; 王贺
Original assignee: Shanghai Zhigao Environmental Protection Technology Co ltd
Current assignee: Shanghai Zhigao Environmental Protection Technology Co ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-09-30
Anticipated expiration: 2032-04-02

Abstract

The utility model discloses a washing and biological deodorization device, including washing section, the biological filter, the wash water tank, the humidification water tank, the wash water pump, the humidification water pump, the defroster, the fan, aiutage and electric heater, sewage field foul smell passes through pipe connection to washing section bottom, the inside washing filler that is provided with of washing section, the top of washing filler is provided with the atomizing nozzle who is connected to the wash water pump, the wash water pump links to each other with the wash water tank, pipe connection to biological filter bottom is passed through at the top of washing section, be provided with the special filler of biological carbon filler and import hydrogen sulfide in the biological filter, the atomizing nozzle of biological filter top is connected to the humidification water tank through the humidification water pump, humidification water tank and washing section in all be provided with electric heater, the biological filter top is provided with the defroster, the defroster passes through pipeline and fan is connected to the aiutage. The utility model has the advantages of reasonable design, convenient operation is reliable, and it is convenient to maintain, and deodorization effect is good.

Description

Washing and biological deodorization device

Technical Field

The utility model relates to a foul gas handles technical field, concretely relates to washing and biological deodorizing device.

Background

The essence of the biological process is to convert the noxious substances in the malodour into simple inorganic substances or to constitute autologous cells by means of the vital activities of active microorganisms accumulated on a porous, moist medium. The biological deodorization mainly comprises three steps: (1) water-soluble infiltration; (2) biological absorption; (3) and (4) biological oxidation.

The first step is as follows: water-soluble permeation, i.e., the odor component first contacts and dissolves in water (i.e., diffuses from the gas phase into the liquid phase). The surface of the filter material is covered with a water layer, chemical substances in odor are dissolved on the surface layer after contacting with the filter material, and are converted into a water phase from a gas phase, so that bacteria in the filter material can be further absorbed and decomposed. In addition, the porosity of the filter material enables the filter material to have an ultra-large specific surface area, so that two phases of gas and water have larger contact areas, and the transmission and diffusion rate of gas-phase chemical substances in the water phase is effectively increased (the transient effect generated by the filter material is hundreds of times that generated by chemical cleaning through experimental tests). Therefore, the water-soluble permeation process is actually a physical action process, and the high speed of transmission and diffusion means that the filter material can rapidly reduce the concentration of the odor to an extremely low level.

The second step is that: bioabsorption, i.e. the malodorous components dissolved in the liquid phase are further diffused to the biological membrane growing around the medium under the promotion of concentration difference, and then are captured and absorbed by the microorganisms therein.

The third step: biological oxidation, i.e. the odor components entering the microorganism body are decomposed as energy and nutrient substances in the metabolic process of the odor components, and finally converted into harmless compounds through biochemical reaction. The obligate bacteria (the processing strains obtained by screening according to the type of the odor source) in the filter material take the pollutants as food, convert the pollutants into self nutrient substances, convert elements such as carbon, hydrogen, oxygen, nitrogen, sulfur and the like into free states from the form of compounds, enter the self circulation process of microorganisms and further achieve the purpose of degradation. Meanwhile, the microorganisms such as the obligate bacteria can realize the self-reproduction process, when the nutritional requirements of the pollution compounds serving as food and the obligate bacteria are balanced, and the conditions such as moisture, temperature, pH value and the like meet the requirements of the microorganisms, the metabolic reproduction of the obligate bacteria can reach a stable balance, and the final products are pollution-free carbon dioxide, water and salt. Thereby removing the contaminants. The whole process is shown in fig. 1.

Present washing and biological deodorizing device's structural design is comparatively complicated, and the operation is inconvenient, in order to improve biological deodorization efficiency, the utility model relates to a washing and biological deodorizing device.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a washing and biological deodorization device, structural design is reasonable, and convenient operation is reliable, and it is convenient to maintain, and deodorization effect is good, and the wide application is in sewage treatment plant, refuse disposal field, food factory, chemical plant, mud factory etc..

In order to achieve the above purpose, the present invention is implemented by the following technical solutions: the utility model provides a washing and biological deodorization device, including the washing section, the biological filter, the wash water tank, humidification water tank, wash water pump, the humidification water pump, the defroster, the fan, aiutage and electric heater, sewage field foul smell pipe connection is to the washing section bottom, the inside washing filler that is provided with of washing section, the top of washing filler is provided with the atomizing nozzle who is connected to wash water pump, wash water pump links to each other with wash water tank, pipe connection to biological filter bottom is passed through at the top of washing section, be provided with the special filler of biological charcoal filler and import hydrogen sulfide in the biological filter, the atomizing nozzle of biological filter top is connected to humidification water tank through the humidification water pump, humidification water tank and washing section in all be provided with electric heater, the biological top is provided with the defroster, the defroster passes through pipeline and fan connection to the aiutage.

Preferably, the exhaust funnel is provided with a sampling port.

Preferably, the upper parts of the washing water tank and the humidifying water tank are also connected to a nearby drain port.

Preferably, the washing section and the bottom of the biological filter are also connected with reclaimed water under pressure in a factory area.

The utility model discloses a foul gas is advanced from washing section lower part air inlet after collecting, and the tail gas after the washing gets into the biological filter section and carries out bio-oxidation, and the pollutant in the waste gas contacts with the microorganism on the filler, is caught degradation, oxidation by the microorganism, makes the pollutant decompose into harmless CO ₂ And H ₂ And finally converting O into harmless gas to be discharged.

The utility model has the advantages that: the utility model has the advantages of reasonable design, convenient operation is reliable, can effectively carry out the deodorization to the effluent water sump foul smell and handle, and it is effectual to deodorize, no secondary pollution, and the practicality is strong.

Drawings

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments;

FIG. 1 is a schematic view of the background art of the present invention;

FIG. 2 is a schematic view of the present invention;

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 2, the following technical solutions are adopted in the present embodiment: a washing and biological deodorization device comprises a washing section 1, a biological filter 2, a washing water tank 3, a humidifying water tank 4, a washing water pump 5, a humidifying water pump 6, a demister 7, a fan 8, an exhaust funnel 9 and an electric heater 10, wherein a sewage field odor pipeline A is connected to the bottom of the washing section 1, washing filler 11 is arranged inside the washing section 1, an atomizing nozzle connected to the washing water pump 5 is arranged above the washing filler 11, the washing water pump 5 is connected with the washing water tank 3, the top of the washing section 1 is connected to the bottom of the biological filter 2 through a pipeline, a biological carbon filler and an imported hydrogen sulfide special filler 12 are arranged in the biological filter 2, the atomizing nozzle above the biological filter 2 is connected to the humidifying water tank 4 through the humidifying water pump 6, the humidifying water tank 4 and the washing section 1 are internally provided with electric heaters 10, the top of the biological filter 2 is provided with a demister 7, and the demister 7 is connected to an exhaust funnel 9 through a pipeline and a fan.

It should be noted that the exhaust funnel 9 is provided with a sampling port 13.

It is to be noted that the upper portions of the washing water tank 3 and the humidifying water tank 4 are also connected to the nearby drain port D.

It is worth noting that the bottom of the washing section 1 and the biological filter 2 are also connected with reclaimed water B under pressure in a factory area.

In addition, the exhaust funnel 9 is 15 meters high.

The working principle of the specific implementation mode is as follows:

1) the odor enters from the lower part of the washing section, the atomizing nozzle fully atomizes the water and then the atomized water is mixed with the airflow in a cross convection way, and part of peculiar smell molecules in the air are dissolved in the washing liquid, so that the operation load of the biofilter process is reduced, and good conditions are created for the stable operation of the biofilter process.

2) The gas treated by the water washing section enters the biological section from bottom to top, and when the gas moves from bottom to top, the peculiar smell molecules in the gas pass through the packing layer and are fully contacted with a biological film formed on the surface of the packing, and are oxidized and decomposed by microorganisms, and the peculiar smell molecules are converted into carbon dioxide, water, mineral substances and the like, so that the aim of purifying the peculiar smell is fulfilled.

The water washing is adopted as the pretreatment of the biological filter. The water washing is mass transfer equipment which takes the filler in a water washing tank as a gas-liquid two-phase contact member, the tower body is in a vertical square shape, the bottom of the tower body is provided with a filler supporting plate, and the filler is placed on the supporting plate in a random or integral mode. And a packing pressing plate is arranged above the packing to prevent the packing from being blown by the ascending air flow. The liquid is sprayed on the packing from the top of the tower through a liquid distributor and flows down along the surface of the packing. Gas is fed from the bottom of the tower, and after being distributed by the gas distribution device, the gas and the liquid continuously pass through the gaps of the packing layer in a countercurrent manner, and the gas phase and the liquid phase are closely contacted on the surface of the packing layer for mass transfer. The continuous contact type gas-liquid mass transfer equipment has two-phase composition continuously changing along the height of the tower, and under the normal operation state, the gas phase is a continuous phase and the liquid phase is a dispersed phase.

The main material of the deodorizing system of the present embodiment: stainless steel corrugated board form. The deodorization system comprises a device shell, biological fillers, a spraying system, a gas distribution system, an external circulating system and the like.

The biological deodorization system adopts a horizontal structure and is closed according to field conditions. The shell is achieved to have sufficient rigidity and strength through a steel structure framework.

Besides the air inlet and outlet, the biological deodorization filter shell is also provided with perfect accessories such as a relative observation window, a filling discharging opening and the like. The biological pond is provided with a top cover and a reasonable access hole.

The odor easily flows in the device to cause uneven phenomenon, thereby reducing the treatment effect. Therefore, corresponding flow guiding devices such as gas distribution pipelines or gas distribution channels are designed to solve the problem of uneven gas distribution and prevent short flow and channeling. The upper space and the lower space of the biological filter are not less than 500mm, so that the uneven ventilation and the smooth ventilation are prevented.

The biological filter has a heat preservation function, a filler bearing layer in the biological filter adopts a glass fiber reinforced plastic grating plate, and the filler bearing layer ensures enough rigidity, strength and corrosion resistance. The strength of the bearing layer and the support also needs to consider factors such as biofilm growth, water holding and the like besides the weight of the filler.

The most important part of biological deodorization is the filter material, and a good carrier material must satisfy the following conditions: the species of microorganisms allowed to grow are abundant; providing a large inhabitation and growth specific surface area for microorganisms; reasonable nutrient components (N, P, K and trace elements); has good water absorption and no peculiar smell; the adsorption property is good, the structure is uniform, and the void ratio is large; ageing resistance, and simple operation and maintenance. The biological filter material of the embodiment adopts a biological carbon filler and an imported special filler for hydrogen sulfide.

The biological carbon filler comprises the following components: the acid and alkali resistance is strong; the grain size of the filter material is 1.5-10mm, and the filter material can be selected; the surface area of the filter material is large, the specific surface area is 590m2/g-1500m2/g, the filling density is 500-550g/cm3, and the attachment of a biological membrane is facilitated; the void ratio is high, and the wind pressure loss can be reduced; the mechanical strength is high, and the hydraulic shearing resistance is strong; the filler does not deteriorate or peel off after the acidic odor-causing compound is contacted, and has a long service life.

The special filler for the imported hydrogen sulfide: the acid and alkali resistance is strong; an original package inlet; the grain size of the filter material is 4 mm; the deodorization rate of the hydrogen sulfide is as high as more than 95 percent; the starting speed of the biological deodorization system is increased by more than 2 times compared with the traditional biological filler.

The biological filler of the embodiment can ensure the service life of more than 10 years, is not easy to harden, can not shrink or expand along with the change of water content, and can not reduce the service life or lose the use function because of the re-implantation of strains.

The biological purification of gaseous pollutants is a comprehensive process of diffusion, adsorption and biochemical reaction, the temperature is properly raised to be beneficial to the biochemical process, and the optimal temperature for the growth of microorganisms in a biological waste gas treatment system is 10-40 ℃. Microorganisms can metabolize at low temperatures, but the reaction rate is slow. The climate is cold in winter, so that the whole system can have good waste gas treatment effect under any condition, and biological strains are prevented from dying due to sudden drop of the environmental temperature.

In this embodiment, the exhaust gas treatment system is equipped with a temperature control system. When the temperature is lower than the specified value, an electric heater is adopted to heat the circulating liquid, and the heat balance is kept; the proper growth environment of the microorganisms is ensured, and the microorganisms are always in the optimal state, so that the optimal effect of removing pollutants is achieved.

The specific embodiment adopts high-altitude discharge, and the height of the exhaust funnel is 15 meters. The air pipe material of the emission chimney (exhaust funnel) is made of glass fiber reinforced plastic, the sampling port of the equipment is made of glass fiber reinforced plastic, the sampling platform is made of glass fiber reinforced plastic, the top of the chimney is required to be in lightning protection grounding, and the bottom of the chimney is provided with a drain pipe.

The washing section of the embodiment realizes the automatic drainage function by interlocking a pH meter in the circulating water tank with the drainage valve; the liquid level meter and the circulating water pump realize linkage start and stop, and the water washing section spraying function is realized.

Biological treatment stage of this embodiment: the biological section pH meter is interlocked with the water replenishing valve to control the pH value of the circulating water body to be kept in a set range; simultaneously, the thermometer is interlocked with the electric heater to ensure the equipment operation temperature of the biological section; the liquid level meter and the circulating water pump realize chain start and stop, and the biological section spraying function is realized.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A washing and biological deodorization device is characterized by comprising a washing section (1), a biological filter (2), a washing water tank (3), a humidifying water tank (4), a washing water pump (5), a humidifying water pump (6), a demister (7), a fan (8), an exhaust funnel (9) and an electric heater (10), wherein a sewage field odor pipeline (A) is connected to the bottom of the washing section (1), washing fillers (11) are arranged inside the washing section (1), atomizing nozzles connected to the washing water pump (5) are arranged above the washing fillers (11), the washing water pump (5) is connected with the washing water tank (3), the top of the washing section (1) is connected to the bottom of the biological filter (2) through a pipeline, the atomizing nozzles above the biological filter (2) are connected to the humidifying water tank (4) through the humidifying water pump (6), and the humidifying water tank (4) and the washing section (1) are internally provided with the electric heater (10), the top of the biological filter (2) is provided with a demister (7), and the demister (7) is connected to an exhaust funnel (9) through a pipeline and a fan (8).

2. A washing and bio-deodorising apparatus according to claim 1, characterised in that the exhaust funnel (9) is provided with a sampling port (13).

3. A washing and bio-deodorising apparatus according to claim 1, wherein the upper parts of the washing water tank (3) and the humidifying water tank (4) are also connected to the nearby drain (D).

4. A washing and biological deodorization device according to claim 1, characterized in that the bottom of the washing section (1) and the biological filter (2) are also connected with the pressurized reclaimed water (B) in the factory floor.

5. A washing and bio-deodorising apparatus according to claim 1, characterised in that the chimney (9) is 15 metres high.