CN111672314A - A new type of multi-stage up-flow biological deodorization device - Google Patents

Abstract

The invention discloses a novel multistage upflow biological deodorization device, which comprises a deodorization box body, wherein a filler pipe is arranged at the inner top of the deodorization box body, a porous gas distribution plate is arranged at the inner bottom of the deodorization box body, the interior of the deodorization box body is divided into a primary deodorization area and a secondary deodorization area, a first partition plate is arranged between the primary deodorization area and the secondary deodorization area, second partition plates are respectively arranged in the primary deodorization area and the secondary deodorization area, the first partition plate, the second partition plate and the porous gas distribution plate form a primary filler area, a secondary filler area and a ventilation area, a waste gas inlet is formed in one side of the top of the deodorization box body and is positioned above the primary deodorization area, and an exhaust port is formed in the other side of the top of the deodorization box body and is positioned above the secondary deodorization area; according to the invention, the microorganism active layer formed in the multistage microorganism filler utilizes the metabolism, photolysis and oxidative decomposition of the dominant microorganisms to deodorize the organic waste gas.

Description

A new type of multi-stage up-flow biological deodorization device

technical field

The invention relates to the technical field of waste gas treatment, in particular to a novel multi-stage up-flow biological deodorization device.

Background technique

Industrial organic waste gas refers to a kind of olfactory pollution that is produced by enterprises in the production process and has volatile substances that can cause human disgust or unpleasant feeling. Industrial organic waste gas comes from a wide range of sources, including animal husbandry farms, slaughterhouses, petrochemicals, paint spraying, rubber, tanneries, agricultural fertilizers, garbage disposal plants, sewage treatment plants, etc. The types of organic waste gas generated can reach tens of thousands, among which hydrogen sulfide, trimethylamine, formaldehyde and volatile aromatic compounds such as benzene, toluene and styrene are seriously harmful to human health. Industrial organic waste gas can enter the human body through the respiratory tract, digestive tract, etc., harming various tissues and organs. Among them, halogenated compounds and aromatic compounds have teratogenic, mutagenic and carcinogenic effects, and have been listed as priority pollutants by many governments. Biological method is a high-tech combining biotechnology and environmental engineering technology. It has been recognized as a mainstream, efficient, safe and reliable terminal treatment technology for organic waste gas pollution by experts from all over the world.

Industrial organic waste gas pollution control technologies include: absorption, adsorption, incineration, oxidation, and biological methods. The absorption method uses water or absorbent to remove water-soluble components in the exhaust gas, which consumes a lot of water and chemical reagents. Moreover, the corrosion to the equipment is serious, and it is not suitable for the treatment of highly volatile organic gases. The adsorption method often uses activated carbon as the adsorbent to transfer the pollutants of the organic waste gas from the gas phase to the solid phase, but the pollutants are not completely removed, and are re-released into the environment when they are desorbed, causing secondary pollution. Combustion converts organic waste gas into CO2 and H2O by fully burning organic waste gas at high temperature, but at the same time, SOx, NOx and other more toxic pollutants are formed due to incomplete combustion. Compared with the physical and chemical treatment process, the biological treatment process has the advantages of simple equipment installation and operation, convenient maintenance, stable operation and high efficiency, and the energy consumption is generally 1/4 to 1/10 of that of the physical and chemical method. The principle is: ① the waste gas first contacts with water and enters the water phase, and the washing water can be recycled; ② the components of the waste gas are further diffused to the biofilm around the medium under the impetus of the concentration difference; ③ the microorganisms absorb and absorb the waste gas pollutants as The energy or carbon source material required by its own metabolism is utilized, so as to be completely degraded or converted into simple inorganic substances such as CO2 and H2O.

SUMMARY OF THE INVENTION

Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a novel multi-stage up-flow biological deodorization device, which utilizes the metabolism, photolysis and Oxidize and decompose malodorous substances to achieve the effect of deodorizing organic waste gas.

In order to solve the above-mentioned technical problems, the technical scheme of the present invention is:

A novel multi-stage up-flow biological deodorizing device includes a deodorizing box body, a stuffing pipe is arranged at the inner top of the deodorizing box body, and a porous gas distribution plate is arranged at the inner bottom of the deodorizing box body, so the The interior of the deodorizing box body is divided into a first-level deodorization area and a second-level deodorization area, and a first partition is arranged between the first-level deodorization area and the second-level deodorization area, and the first-level deodorization area is A second separator is arranged in the deodorizing zone and the secondary deodorizing zone. The first separator, the second separator and the porous gas distribution plate form a primary packing zone, a secondary packing zone and a ventilation zone. The deodorizing box The top side of the body is provided with an exhaust gas inlet and is located above the primary deodorization zone, and the other side of the top of the deodorizing box body is provided with an exhaust port and is located above the secondary deodorization zone.

Preferably, the bottom surface of the packing pipe is provided with several rotating nozzles, which are respectively located above the primary packing area and the secondary packing area.

Preferably, the top surface of the deodorizing box body is provided with an access cover and two finished product access covers, the access covers are located above the primary packing area, and the two finished product access covers are respectively located on the primary level Above the packing area and the secondary packing area.

Preferably, the rear side of the deodorizing box body is provided with two finished access covers, an emptying pipe and a drainage pipe, and both the emptying pipe and the drainage pipe are located at the bottom of the rear side.

Preferably, the primary packing area is provided with mesoporous ceramsite filler, the secondary packing area is provided with a biological filler support frame, and the biological filler support frame is provided with fine-porous ceramsite filler.

Preferably, the filler porosity of the secondary filler zone is smaller than the filler porosity of the primary filler zone.

Preferably, the ventilation rate of the ventilation zone is 2-4 mL/s.

Preferably, the residence time of the exhaust gas in the primary packing zone and the secondary packing zone is 5-10s.

Preferably, the bottom of the first partition plate is fixedly connected to the inner bottom wall of the deodorizing box body, and the top of the first partition plate and the inner top wall of the deodorizing box body have a certain distance for the exhaust gas to circulate, The top of the second partition is fixedly connected to the inner top wall of the deodorizing box body, and the bottom of the second partition is connected to the porous gas distribution plate.

Compared with the prior art, the present invention has the following beneficial effects: the novel multi-stage up-flow biological deodorization device of the present invention is provided with a primary deodorization zone and a secondary deodorization zone, and the waste gas is adsorbed and decomposed by the primary biological deodorization. After the organic waste gas, a small amount of aerosol organic pollutants and a considerable part of gaseous organic pollutants remain at this time, and then enter the secondary deodorization zone. The filler in the secondary deodorization zone is different from the primary one. The secondary filler The density of the area is relatively high and the porosity is small, which can adsorb more gaseous organic pollutants, so that it can be adsorbed more effectively and the deodorization effect is better; by setting the packing pipe and the rotating nozzle, the rotating nozzle is sprayed to add microorganisms, so that the Microorganisms can be continuously replenished to primary and secondary biological fillers to meet processing needs.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore do not It should be regarded as a limitation of the scope, and for those of ordinary skill in the art, other related drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the front view structure schematic diagram of the present invention;

Fig. 2 is the top view structure schematic diagram of the present invention;

FIG. 3 is a schematic side view of the structure of the present invention.

In the figure, 1- deodorizing box body, 2- stuffing pipe, 3- porous gas distribution plate, 4- first-level deodorizing area, 5- second-level deodorizing area, 6- first partition plate, 7- second partition Plate, 8- primary packing area, 9- secondary packing area, 10- ventilation area, 11- exhaust gas inlet, 12- exhaust port, 13- rotating nozzle, 14- access cover, 15- finished product access cover, 16- Drain pipe, 17-Drain pipe, 18-Biofill support frame.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific embodiments, but those skilled in the art will understand that the embodiments described below are part of the embodiments of the present invention, rather than all of the embodiments, It is only used to illustrate the present invention and should not be construed as limiting the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

As shown in Figures 1-3, in the embodiment of the present invention, a novel multi-stage up-flow biological deodorization device includes a deodorization box body 1, and a stuffing pipe 2 is provided on the inner top of the deodorization box body 1, The inner bottom of the deodorizing box body 1 is provided with a porous gas distribution plate 3, and the interior of the deodorizing box body 1 is divided into a first-level deodorization area 4 and a second-level deodorization area 5. The first-level deodorization area There is a first partition 6 between 4 and the secondary deodorization zone 5, and a second partition 7 is provided in both the primary deodorization zone 4 and the secondary deodorization zone 5, and the first partition 6 , the second partition plate 7 and the porous gas distribution plate 3 form a primary packing area 8, a secondary packing area 9 and a ventilation area 10. The top side of the deodorizing box body 1 is provided with an exhaust gas inlet 11 and is located in the primary deodorizing box. Above the deodorizing zone 4 , the other side of the top of the deodorizing box body 1 is provided with an exhaust port 12 and is located above the secondary deodorizing zone 5 .

The novel multi-stage up-flow biological deodorization device of the present invention is provided with a primary deodorization zone 4 and a secondary deodorization zone 5, and the waste gas is adsorbed and decomposed by the primary biological deodorization. Aerosol organic pollutants and a considerable part of gaseous organic pollutants enter the secondary deodorization zone 5. The packing of the secondary deodorization zone 5 is different from that of the primary one. The density of the secondary packing zone 9 is relatively high and the porosity is small. , which can adsorb more gaseous organic pollutants, so that it can be adsorbed more effectively and the deodorization effect is better; the porous gas distribution plate 3 can be set to make the exhaust gas evenly distributed into the primary deodorization zone 4 and the secondary deodorization zone 5 , to improve the deodorization efficiency.

The present invention adopts an integrated mode, similar to the container mode design, can be modularized and equipped, and can be assembled and assembled according to different requirements of waste gas treatment capacity, and can be assembled in sequence according to the principle of this embodiment. The deodorizing area is deodorized.

In this embodiment, the bottom surface of the packing pipe 2 is provided with a plurality of rotating nozzles 13 which are respectively located above the primary packing area 8 and the secondary packing area 9 . By setting the filling pipe 2 and the rotating nozzle 13, the rotating nozzle 13 sprays and adds microorganisms, so that the microorganisms can be continuously supplemented into the primary and secondary biological fillers to meet the treatment requirements.

In this embodiment, the top surface of the deodorizing box body 1 is provided with an access cover 14 and two finished product access covers 15, the access cover 14 is located above the primary packing area 8, and two finished product access covers 14 The access cover 15 is located above the primary packing area 8 and the secondary packing area 9 respectively. The inspection cover 14 and the finished product inspection cover 15 are provided to facilitate maintenance.

In this embodiment, the rear side of the deodorizing box body 1 is provided with two finished product inspection covers 15, an emptying pipe 16 and a drainage pipe 17, and the emptying pipe 16 and the drainage pipe 17 are both located at the bottom of the rear side.

In this embodiment, the primary packing area 8 is provided with mesoporous ceramsite fillers, the secondary packing area 9 is provided with a biological filler support frame 18 , and the biological filler support frame 18 is provided with fine pores Ceramic filler.

In this embodiment, the filler porosity of the secondary packing area 9 is smaller than the filler porosity of the primary packing area 8 .

In this embodiment, the ventilation rate of the ventilation zone 10 is 2-4 mL/s.

In this embodiment, the residence time of the exhaust gas in the primary packing zone 8 and the secondary packing zone 9 is 5-10s.

In this embodiment, the bottom of the first partition 6 is fixedly connected with the inner bottom wall of the deodorizing box body 1 , and the top of the first partition 6 and the inner top wall of the deodorizing box body 1 have There is a certain distance for the exhaust gas to circulate, the top of the second partition 7 is fixedly connected to the inner top wall of the deodorization box body 1 , and the bottom of the second partition 7 is connected to the porous gas distribution plate 3 .

The working principle of the present invention: as shown in Figure 1, the organic waste gas enters the ventilation zone 10 of the primary deodorization zone 4 from the waste gas inlet 11, and the gas volume is evenly distributed from the bottom of the primary packing zone 8 through the porous gas distribution plate 3, and the exhaust gas is evenly distributed. In contact with biological fillers, under the uniform mixing of vapor and liquid, under the contact exchange of liquid film, gaseous pollutants or aerosol pollutants enter the liquid state through the liquid film, and then are adsorbed, decomposed and degraded by the microorganisms attached to the filler. At this time, in the primary deodorization zone 4, most of the aerosol organic matter in the organic waste gas is adsorbed and removed here, and some gaseous organic pollutants are also removed at the same time; the waste gas enters the secondary deodorization. Zone 5, the gas volume is evenly distributed through the porous gas distribution plate 3 from the bottom of the secondary packing zone 9, the exhaust gas is evenly contacted with the biological filler, the packing of the secondary deodorizing zone 5 is different from the primary packing, and the density of the secondary packing zone 9 The higher the ratio, the smaller the porosity, the more gaseous organic pollutants can be adsorbed, the more effectively adsorbed, the better deodorizing effect, and finally discharged from the exhaust port 12 .

The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions and alterations to these embodiments still fall within the protection scope of the present invention.

Claims (9)

1. A novel multi-stage up-flow biological deodorizing device, comprising a deodorizing box body, is characterized in that, the inner top of the deodorizing box body is provided with a stuffing pipe, and the inner bottom of the deodorizing box body is provided with a filler pipe. The porous gas distribution plate, the interior of the deodorizing box body is divided into a primary deodorizing area and a secondary deodorizing area, and a first partition is arranged between the primary deodorizing area and the secondary deodorizing area, so the The first-level deodorizing zone and the second-level deodorizing zone are all provided with a second partition, and the first partition, the second partition and the porous gas distribution plate form a primary packing area, a secondary packing area and a ventilation area , the top side of the deodorizing box body is provided with an exhaust gas inlet and is located above the primary deodorizing area, and the other side of the top of the deodorizing box body is provided with an exhaust port and is located above the secondary deodorizing area . 2 . The novel multi-stage up-flow biological deodorization device according to claim 1 , wherein the bottom surface of the packing pipe is provided with several rotating nozzles, which are respectively located in the primary packing area and the secondary packing area. 3 . above the packing area. 3. The novel multi-stage up-flow biological deodorizing device according to claim 1, wherein the top surface of the deodorizing box body is provided with an inspection cover and two finished product inspection covers, and the inspection covers are located at the Above the primary packing area, the two finished product inspection covers are respectively located above the primary packing area and the secondary packing area. 4. The novel multi-stage up-flow biological deodorizing device according to claim 1, wherein the rear side of the deodorizing box body is provided with two finished product inspection covers, an emptying pipe and a drainage pipe, and the emptying Both the pipe and the drain are located at the bottom of the rear side. 5 . The novel multi-stage up-flow biological deodorization device according to claim 1 , wherein the primary packing area is provided with mesoporous ceramsite fillers, and the secondary packing area is provided with biological fillers. 6 . The support frame is provided with fine-porous ceramsite filler on the biological filler support frame. 6 . The novel multi-stage up-flow biological deodorization device according to claim 5 , wherein the packing porosity of the secondary packing area is smaller than the packing porosity of the primary packing area. 7 . 7 . The novel multi-stage up-flow biological deodorization device according to claim 1 , wherein the ventilation rate of the ventilation zone is 2-4 mL/s. 8 . 8 . The novel multi-stage up-flow biological deodorization device according to claim 1 , wherein the residence time of the exhaust gas in the primary packing area and the secondary packing area is 5-10 s. 9 . 9 . The novel multi-stage up-flow biological deodorizing device according to claim 1 , wherein the bottom of the first partition is fixedly connected to the inner bottom wall of the deodorizing box body, and the first The top of the partition plate and the inner top wall of the deodorizing box body have a certain distance for the exhaust gas to circulate, the top of the second partition plate is fixedly connected with the inner top wall of the deodorizing box body, and the bottom of the second partition plate is connected with The porous gas distribution plates are connected.

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