CN205084061U - Odor treatment device of dry tail gas of fungus sediment - Google Patents

Abstract

The utility model discloses an odor treatment device of dry tail gas of fungus sediment for flue gas odor treatment such as fungus sediment drying, including spraying cooling system and biofiltration system, it sprays the cooling tower to spray the cooling system adoption, the biofiltration system adopts the biofiltration tower, spraying cooling tower and biofiltration tower and constituteing a box jointly, the entry that wherein sprays on the cooling box is the equipment air intake, spraying the export of cooling tower and the entry of biofiltration tower and communicating with each other, the export on the biofiltration box is the equipment air outlet. The air current passes through two -stage biofiltration in proper order after spraying the cooling, the foul smell acts on through biochemistry and is decomposed into CO2 and H2O or other innocuous substances, have advantages such as stability is strong, the security is high, the working costs is low, treatment effect is good, but the wide application is administered in the peculiar smell.

Description

An odor treatment device for drying tail gas of fungus residue

technical field

The utility model belongs to the field of waste gas and odor treatment, and relates to the treatment of odors such as spray granulation and bacterial residue drying treatment in the biopharmaceutical industry, in particular to an odor treatment device for the drying tail gas of bacterial residues.

Background technique

After the production of various bio-fermented medicines, a large amount of fungal residue will be produced. With the growing biopharmaceutical industry in my country, it is urgent to further improve the efficiency of processing waste fungal residue. The usual method of treating fungal residue is to dry the fungal residue with steam or hot air. After drying, it is sent to the boiler for incineration. However, a large amount of odor will be produced during the drying process of fungus residue. The odor has complex components, high temperature, and high humidity. It causes ambient air pollution within a few square kilometers or even more than ten square kilometers around the treatment plant, causing complaints from nearby residents and other issues.

Utility model content

The technical problem solved by the utility model is: aiming at the defect that the existing conventional treatment method has no obvious effect on the odor of the fermentation tail gas of the fungus residue, a kind of odor treatment device for the dry tail gas of the fungus residue is provided, which can effectively reduce the concentration of the odor, It is beneficial to the dry incineration treatment of the fungus residue.

The utility model adopts following technical scheme to realize:

An odor treatment device for dry tail gas of fungus residues, comprising a spray cooling system and a biological filtration system; the spray cooling system adopts a spray cooling tower, the biological filtration system adopts a biological filtration tower, and the spray cooling tower Form a box together with the biological filtration tower, wherein the entrance on the spray cooling box 5 is the equipment air inlet 3, the outlet of the spray cooling tower communicates with the entrance of the biological filtration tower, and the outlet on the biological filtration box is Equipment air outlet 12.

Further, the biological filtration system adopts two stages of biological filtration towers connected in series.

Further, the spray cooling box body 5, the first-stage biological filter box body 8 and the second-stage biological filter box body 11 are arranged side by side, and the adjacent ones are separated by partitions provided with air flow holes 16, and each section There are manholes on the top of the box; the air inlet 3 of the equipment is located in the lower half of the spray cooling box 5, and the air flow hole between the spray cooling box 5 and the first-stage biological filtration box 8 is located in the partition. In the upper half, the air flow hole between the first-stage biological filter box 8 and the second-stage biological filter box 11 is located in the lower half of the partition, and the air outlet 12 of the equipment is located on the upper part of the second-stage biological filter box 11 The half part forms an S-shaped air circulation channel in the box.

In the present utility model, the first-stage filler 4 is provided on the airflow channel in the spray cooling box 5 through the air-permeable support plate 17 .

Preferably, the first-stage packing 4 adopts multi-faceted hollow spherical packing.

Further, a mist eliminator 7 is provided in the air flow hole between the spray cooling box 5 and the first-stage biological filter box 8 .

Further, the air passages in the two-stage biofiltration box are provided with biofiltration fillers 9 through the breathable support plate, wherein the two-stage biofiltration box is completely isolated from the space above the breathable support plate, and the space between the two-stage biofiltration box is completely isolated. The air flow holes are located on the bulkhead below the breathable support plate.

Preferably, the biological filter filler 9 adopts a mixed layer formed of bacteria species and porous ceramsite.

In the utility model, the spray cooling box and the biological filtration box are equipped with a spray system, wherein the spray pipe and the nozzle on the top of the spray cooling box 5 are separately connected to the first spray water pump 2 to realize continuous spraying. For showering and humidification, the spray pipes and nozzles on the top of the two-stage biological filtration box are respectively connected to the second spray water pump 13 and the third spray water pump 14 to realize intermittent spray humidification.

Further, a drainage pipe 15 is provided at the bottom of the box for recycling waste liquid, and the spray water pump is connected to a branch of the drainage pipe 15 for recycling the spray liquid.

The utility model integrates the spray cooling tower and the biological filtration tower in one box, and separates them horizontally through partitions with air flow holes. The front part is the spray cooling section, and the rear part is the biological filtration section. Vertically divided into upper and lower parts by the air-permeable support plate, a layer of packing layer is set on the upper part of the air-permeable support plate, and the spray cooling section is filled with hollow balls, which are used to initially filter large particles of impurities in the air flow. The biological filter section is multi-microporous A mixture of pottery clay and fungi is used to absorb harmful substances in odor. The air flow holes on the partition are set up and down with the breathable support plate as the interface, so that the air flow passes through the packing layers of each part in series in sequence. The opening on the outer side of the spray cooling tower is the air inlet of the equipment, which is connected to the fan to send the exhaust gas, and finally The outlet of the first-stage biological filter tower is the air outlet of the equipment, which is connected to the exhaust pipe for exhaust. A spray system is installed on the top of the spray cooling tower and the biological filter tower to cool down the high-temperature exhaust gas, and at the same time, it can also perform appropriate amount of dust removal treatment on the exhaust gas.

The utility model adopts the above-mentioned technical scheme, which can thoroughly treat the odor produced by the drying of the fermentation liquid and the drying of the fungus residue, and the effect of controlling the odor of the tail gas is obvious. The odor concentration after the new treatment is less than 1000 (dimensionless), which can be promoted in industries such as biopharmaceuticals that use fermentation to improve the efficiency of drying treatment of bacteria residues in the biopharmaceutical industry and the treatment of odors from fermentation liquid granulation, and avoid environmental pollution.

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is a schematic structural diagram of an odor treatment device for drying tail gas of fungus residue in an embodiment.

Labels in the figure: 1-fan; 2-first spray pump; 3-equipment air inlet; 4-first-stage packing; 5-spray cooling box; 6-spray pipe and nozzle; 7-demister ;8-first-stage biological filter box; 9-biological filter filler; 10-partition; 11-second-stage biological filter box; 12-equipment air outlet; Spray water pump; 15-drain pipe; 16-air flow hole; 17-ventilating support plate.

detailed description

Example

Referring to Figure 1, the odor treatment device for the dried tail gas of fungus residue mainly includes a spray cooling system and a biological filtration system. 3. The first-stage filler 4, the spray cooling box 5, the demister 7, etc. The inside of the spray cooling box 5 is provided with the first-stage filler 4 through the ventilating support plate 17, and the top of the spray cooling box 5 is provided with The spray pipe and nozzle 6 are connected with the first spray water pump 2, and the lower half of the spray cooling box 5 on the left is provided with an inlet, which is connected with the fan 1 to send in the air flow, and the top of the first-stage packing 4 is sprayed The cooling box is provided with a spray cooling tower outlet. The biological filtration system adopts a two-stage biological filtration tower in series, including the first-stage biological filtration box 8, the biological filtration filler 9, the second-stage biological filtration box 11, the equipment air outlet 12, the second spray water pump 13, the second Three spray water pumps 14, etc., in the first-stage biological filter box 8 and the second-stage biological filter box 11 are provided with a biological filter filler 9 through a breathable support plate 17, the upper half of the first-stage biological filter box 8 An inlet is provided at the top to communicate with the outlet on the spray cooling box body, and an outlet is provided on the lower half of the first-stage biological filtration box 8 to communicate with the entrance of the second-stage biological filtration box 11 lower half, and the second-stage The upper half of the biological filter box 11 is provided with an outlet, which is connected with the exhaust tube.

In this embodiment, the spray cooling box body 5, the first-stage biological filter box body 8 and the second-stage biological filter box body 11 are arranged side by side in one box body. Separated by partitions, there are two manholes on the top of each section of the box for access to the inside of the box for equipment maintenance. Wherein the entrance that the lower half of the spray cooling box 5 is set is the equipment air inlet 3, and the air flow hole between the spray cooling box 5 and the first-stage biological filtration box 8 is located at the upper half of the partition, the first The air flow hole between the first-stage biological filter box 8 and the second-stage biological filter box 11 is located in the lower half of the partition, and the two-stage biological filter box is completely isolated in the space above the breathable support plate, and the two-stage biological filter box The air flow holes between the bodies are located on the partition below the breathable support plate, the outlet of the upper half of the second-stage biological filtration box 11 is the equipment air outlet 12, and the breathable support plates 17 of adjacent boxes can be set at the same level position, the air flow holes on the partition are set up and down with the breathable support plate as the interface, so that the air flow passes through the packing layers of each part in series in sequence, forming an S-shaped air flow channel in the box.

The air flow enters from the equipment air inlet 3 at the lower part of the spray cooling box 5, enters the first-stage biological filter box 8 from the upper air flow hole, and then enters through the air flow hole in the lower half of the first-stage biological filter box 8 The lower part of the second-stage biological filter box 11 finally goes out from the equipment air outlet 12 on the top of the second-stage biological filter box 11 and enters the exhaust tube, which can be adjusted by adjusting the opening area of the airflow opening on the partition between the boxes. Air velocity. The spray cooling box 5 is the tail gas spray cooling section, and the first-stage biological filter box 8 and the second-stage biological filter box 11 are the filtering and deodorizing sections of the odor in the exhaust gas.

In this embodiment, the first stage packing 4 adopts The multi-faceted hollow sphere, the biological filtration filler 9 is made of 6-8mm microporous clay filler mixed with bacterial strains, and the bacterial strains are domesticated by mixed culture of sewage plant sludge and fermented liquid.

As shown in Figure 1, spraying systems are installed on the top of the spray cooling box 5, the first-stage biological filter box 8 and the second-stage biological filter box 11, which are used to cool down the high-temperature exhaust gas. The spray pipe and nozzle 6 on the top of the cooling box 5 are separately connected to the first spray water pump 2 to realize continuous spraying and humidification. 6 is respectively connected to the second spray water pump 13 and the third spray water pump 14 to realize intermittent spray humidification. At the same time, drain pipes 15 are provided at the bottom of all tanks to recycle waste liquid, and all spray pumps are connected to corresponding branch pipes of drain pipes 15 for recycling water resources for spraying. When replacing the spray water, replace it directly through the drain pipe.

In this embodiment, the spray pipes and nozzles installed on the top of the spray cooling box 5 ensure that the internal gas-liquid ratio is 1:2-3; Set one nozzle per square meter, and the flow rate of each nozzle is 8-10L/min. Fermentation liquid and bacteria slag drying odor enters the spray cooling box, using circulating water for continuous spraying, to reduce the exhaust gas temperature below 60°C, while controlling the water temperature to 50°C, when the water temperature exceeds 50°C, it is discharged through the drain pipe 15 Part of the high-temperature water is sent to the sewage treatment station, and part of the cooling water is supplemented at the same time. The odor after cooling enters the biological filter section, and the chemical molecules in the odor are decomposed into CO ₂ , H ₂ O, dilute sulfuric acid, etc. by the bacteria on the biological filter filler, and finally discharged into the atmosphere through the air outlet of the equipment.

In this embodiment, the spray system of the spray cooling box 5 is equipped with two spray water pumps, one for use and one for standby, and continuous spraying is adopted; the first-stage biological filter box 8 and the second-stage biological filter box 11 The internal spraying system is equipped with a spraying water pump, which adopts intermittent spraying, and the spraying time is 10 minutes to 20 minutes every 2 hours.

In this embodiment, continuous spraying is adopted in the spray cooling box body, and the air flow hole between the spray cooling box body 5 and the first-stage biological filtration box body 8 is provided with a demister 7, and the demister 7 is removed through the spray cooling tower. The water mist of the air flow adopts intermittent spraying in the biological filter tower, and the air flow hole between the first-stage biological filter box body 8 and the second-stage biological filter box body 11 may not be provided with a mist eliminator.

In the utility model, a manhole is arranged on the top of the box body for equipment maintenance.

Referring to Fig. 1 again, the working process of this embodiment is as follows: the air flows through the fan 1 and enters the lower part of the spray cooling box 5 from the air inlet 3 of the equipment, and then reaches the box from bottom to top through the first-stage filler 4 as shown by the arrow in the figure The upper part enters the upper part of the first-stage biological filter box 8 through the demister 7, and reaches the lower part of the first-stage biological filter box 8 through the biological filter filler 9 from top to bottom, and passes through the first-stage biological filter box 8 and the second-stage biological filter box. The airflow holes 16 between the secondary biofiltration boxes 11 enter the lower part of the second-stage biofiltration box 11, pass through the biofiltration filler 9 from bottom to top to reach the upper part of the second-stage biofiltration box 11, and the treated gas passes through the equipment Air outlet 12 discharges.

After the experiment of this embodiment, the odor produced by the drying of fermentation broth and the drying of bacteria residue can be more thoroughly treated. The above-mentioned waste gas with an odor concentration of 30000-70000 (dimensionless) can be treated by the system equipment. The odor concentration can reach Less than 1000 (dimensionless).

The utility model can work intermittently. Generally, it will be restarted after 10-15 days of shutdown, and has no influence on the treatment effect.

The above is only a description of specific implementation cases of the present utility model, and cannot limit the scope of protection of rights of the present utility model. All equivalent changes and modifications made according to the claims of the utility model application and the contents of the description are within the protection scope of the utility model.

Claims (10)

1. a kind of odor treatment device of bacteria slag dry tail gas, it is characterized in that: comprise spray cooling system and biological filter system; Described spray cooling system adopts spray cooling tower, and described biological filter system adopts biological filter tower, The spray cooling tower and the biological filtration tower jointly form a box, wherein the entrance on the spray cooling box (5) is the equipment air inlet (3), and the outlet of the spray cooling tower and the entrance of the biological filtration tower In communication, the outlet on the biological filter box is the equipment air outlet (12). 2. The device for treating the odor of a kind of fungus residue dry tail gas according to claim 1, wherein the biological filtration system adopts two stages of biological filtration towers connected in series. 3. the odor treatment device of a kind of fungus slag dry tail gas according to claim 2, spray cooling cabinet (5), first-stage biological filter cabinet (8) and second-stage biological filter cabinet (11 ) are arranged side by side, separated by partitions with air flow holes (16), and manholes are provided on the top of each section of the box; the equipment air inlet (3) is located in the spray cooling box (5) The lower half of the lower half, the airflow hole between the spray cooling box (5) and the first-stage biological filter box (8) is located in the upper half of the clapboard, the first-stage biological filter box (8) and the first-stage biological filter box (8) The air flow holes between the secondary biological filter boxes (11) are located in the lower half of the partition, and the equipment air outlet (12) is located in the upper half of the second-stage biological filter box (11), forming a S in the box. Shaped air circulation channel. 4. the odor treatment device of a kind of bacterium slag dry tail gas according to claim 1, on the airflow passage in the described spray cooling box (5), be provided with first-level packing ( 4). 5 . The device for treating the odor of fungus residue drying tail gas according to claim 4 , wherein the first-stage filler ( 4 ) is filled with multi-faceted hollow spheres. 6 . 6. the odor treatment device of a kind of bacterium slag drying tail gas according to claim 4, the airflow hole between the said spray cooling box (5) and the first-stage biological filter box (8) is set to eliminate Fogger (7). 7. The odor treatment device of a kind of bacterium slag drying tail gas according to claim 3, the air flow channel in the two-stage biological filtration box body is all provided with a biological filter filler (9) through a breathable support plate, wherein the two-stage biological filter The space above the breathable support plate for the box body is completely isolated, and the air flow holes between the two-stage biological filter boxes are located on the partition plate below the breathable support plate. 8 . The device for treating the odor of bacteria residue drying tail gas according to claim 7 , wherein the biological filter filler ( 9 ) adopts a mixed layer formed of bacteria species and porous ceramsite. 9. according to any one of claim 4-8, the odor treatment device of a kind of fungus slag drying tail gas, said spray cooling box body and biological filter box body are all equipped with spray system, wherein spray cooling The spray pipe and nozzle on the top of the box body (5) are separately connected to the first spray water pump (2) to realize continuous spray humidification, and the spray pipe and nozzle on the top of the two-stage biological filtration box are respectively connected to the second spray water pump (13 ) and the third spray water pump (14) to realize intermittent spray humidification. 10. The odor treatment device for drying tail gas of a kind of fungus residue according to claim 9, the bottom of the casing is provided with a drainage pipe (15), and the spray water pump is connected with the branch pipe of the drainage pipe (15).