CN112221336A - High concentration foul gas processing system - Google Patents

High concentration foul gas processing system Download PDF

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Publication number
CN112221336A
CN112221336A CN202011078785.6A CN202011078785A CN112221336A CN 112221336 A CN112221336 A CN 112221336A CN 202011078785 A CN202011078785 A CN 202011078785A CN 112221336 A CN112221336 A CN 112221336A
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tower
malodorous gas
absorption tower
main absorption
gas
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CN202011078785.6A
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Chinese (zh)
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陆敏娇
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Shaoguan Oumu Electrical And Mechanical Equipment Co ltd
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Shaoguan Oumu Electrical And Mechanical Equipment Co ltd
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Priority to CN202011078785.6A priority Critical patent/CN112221336A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/28—Selection of materials for use as drying agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/38—Removing components of undefined structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/52—Hydrogen sulfide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon

Abstract

The invention discloses a high-concentration malodorous gas treatment system, which comprises a main absorption tower for absorbing harmful substances in malodorous gas and an air draft assembly for pumping the malodorous gas into the main absorption tower, wherein the main absorption tower is filled with absorption liquid, the absorption liquid is prepared according to the components of the malodorous gas, the harmful substances in the malodorous gas are absorbed through chemical reaction, a pretreatment tower is arranged between the air draft assembly and the main absorption tower, the air draft assembly pumps the malodorous gas into the pretreatment tower, meanwhile, the main absorption tower atomizes the internal absorption liquid and sprays the atomized absorption liquid into the pretreatment tower, the droplet-shaped absorption liquid reacts with the malodorous gas in the pretreatment tower to absorb a part of the harmful substances in the malodorous gas, and the malodorous gas entering the main absorption tower from the pretreatment tower can be stained with some atomized absorption liquid, thereby helping the gas to be melted with the absorption liquid and reducing the probability of bubbles, thereby achieving the effect of enhancing the absorption treatment of the malodorous gas.

Description

High concentration foul gas processing system
Technical Field
The invention relates to the technical field of malodorous gas treatment, in particular to a high-concentration malodorous gas treatment system.
Background
The sludge dewatering machine room of the electronic plant generally comprises a wet sludge temporary storage tank or a domestication tank, a wet sludge dewatering device, a dewatered wet sludge drying unit, a sludge storage hopper and other sludge treatment related units. In the sludge stacking and drying process of the sludge dewatering machine room, malodorous gases such as hydrogen sulfide, organic sulfur, methyl mercaptan, ammonia and the like can be generated by anaerobic fermentation of sludge. The sludge dewatering process is mostly operated intermittently, and the odor generated when the relevant treatment units are shut down and then opened is particularly serious. The general odor concentration around the dehydration machine room is higher (the odor concentration is evaluated by the concentration of hydrogen sulfide), and the concentration of the hydrogen sulfide is 0.5-20 mg/m3In the meantime. The concentration of hydrogen sulfide is lower at other positions, and the concentration of hydrogen sulfide is between 0.05mg/m3～0.5mg/m3In the meantime. According to the laws and regulations, the odor of the dehydration engine room is still between light pollution and obvious pollution, particularly, under the condition that the ventilation condition and the meteorological condition of the dehydration engine room are not good, the odor of the dehydration engine room is stronger, so that the odor treatment and control measures still need to be considered and designed while the optimal design of diluting the odor gas by natural ventilation is sought, and a good working environment is created.
The method for treating sludge odor usually adopts an absorption cleaning method of an absorption tower, the traditional absorption tower often has insufficient absorption on harmful components of the odor in the process of treating the sludge odor, the odor often generates bubbles in the absorption tower, the gas at the edge of the bubbles can contact with absorption liquid to generate reaction, and the gas at the center of the bubbles cannot contact with the absorption liquid, so that the effect of absorption cleaning is poor.
Disclosure of Invention
The invention aims to provide a high-concentration malodorous gas treatment system, which aims to solve the problems that in the prior art, an absorption cleaning method of an absorption tower is commonly adopted, the traditional absorption tower often has insufficient absorption on harmful components of the odor in the process of treating sludge odor, the odor often generates bubbles in the absorption tower, the gas at the edge of the bubbles can contact with absorption liquid to generate reaction, and the gas at the center of the bubbles cannot contact with the absorption liquid to cause poor absorption cleaning effect.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
a high-concentration malodorous gas treatment system comprises a main absorption tower and an air draft assembly, wherein the main absorption tower is used for absorbing harmful substances in malodorous gas, the air draft assembly is used for pumping the malodorous gas into the main absorption tower, absorption liquid is filled in the main absorption tower, the absorption liquid is prepared according to the components of the malodorous gas, and the harmful substances in the malodorous gas are absorbed through chemical reaction;
a pretreatment tower is arranged between the air draft assembly and the main absorption tower, malodorous gas is pumped into the pretreatment tower by the air draft assembly, the main absorption tower atomizes the absorption liquid inside and sprays the atomized absorption liquid into the pretreatment tower, the atomized absorption liquid reacts with the malodorous gas in the pretreatment tower to absorb a part of harmful substances in the malodorous gas, and then the air draft assembly pumps the malodorous gas into the main absorption tower;
the main absorption tower is connected with a post-treatment pipeline, the post-treatment pipeline is connected to the top of the main absorption tower, malodorous gas escapes from the main absorption tower and then enters the post-treatment pipeline, and a drying assembly for absorbing liquid components in the malodorous gas and a tail treatment assembly for enhancing the absorption treatment effect are arranged in the post-treatment pipeline.
As a preferable scheme of the present invention, a bubble breaking component is arranged in the main absorption tower, and the bubble breaking component is used for breaking bubbles formed by the malodorous gas in the filtrate, so that the malodorous gas is fully contacted with the filtrate, and the adsorption filtration effect of the main absorption tower is enhanced;
the bubble crushing part comprises a crushing rotating shaft arranged along the vertical axis of the main absorption tower, the upper end of the crushing rotating shaft extends out of the main absorption tower and is connected with a motor, a plurality of crushing frames in net rack-shaped structures are arranged on the crushing rotating shaft, the edges of the crushing frames are close to but not in contact with the inner wall of the main absorption tower, and bubbles are prevented from passing through the crushing rotating shaft.
As a preferred scheme of the invention, the uniform gas discharging component in the main absorption tower comprises a plurality of gas outlets uniformly arranged at the bottom of the main absorption tower at intervals, the gas outlets are vertically upward, the bottom ends of the gas outlets are connected with gas discharging pipes, all the gas outlets are connected with the same gas discharging pipe, grids are arranged at the port parts of the gas outlets, and large bubbles can be avoided.
As a preferable scheme of the invention, a spraying pump is arranged on the side wall of the main absorption tower, the output end of the spraying pump is connected with a spraying pipe, the spraying pipe extends into the pretreatment tower, and the tail end of the spraying pipe is provided with an atomizing nozzle.
As a preferable scheme of the invention, the air draft assembly comprises an air draft outer pipe and an air draft inner pipe, the lower end of the air draft outer pipe is connected to the top of the pretreatment tower, the upper end of the air draft outer pipe is connected with an outer air draft fan, the outer air draft fan pumps malodorous gas into the pretreatment tower, and after the malodorous gas enters the pretreatment tower along the air draft outer pipe, the movement path of the malodorous gas is intersected with the movement path of the absorption liquid sprayed by the atomizing nozzle so as to be convenient for the malodorous gas to contact with the pretreatment tower.
As a preferable scheme of the invention, the air draft inner pipe is
Figure BDA0002716964580000031
The form, its lower part level set up extend to in the main absorption tower and with the blast pipe links to each other, and there is the waterproof panel of toper at its upper portion vertical setting and top through the leg joint, the waterproof panel of toper can make the absorption liquid slide along it extremely the bottom of preliminary treatment tower to prevent that the absorption liquid from getting into in the convulsions inner tube, the top of convulsions inner tube is connected with interior air exhauster, the output of interior air exhauster is vertical up.
As a preferable scheme of the invention, an extraction pump is arranged in the pretreatment tower, and an output end of the extraction pump extends into the main absorption tower.
As a preferable scheme of the invention, the drying assembly comprises a drying cylinder, the drying cylinder is fixed in the post-treatment pipeline, and a gypsum column is arranged in the drying cylinder;
the tail treatment assembly comprises a filter cartridge, the filter cartridge is fixed in the post-treatment cartridge, the filter cartridge is located behind the drying cylinder, and activated carbon is filled in the filter cartridge.
Compared with the prior art, the invention has the following beneficial effects:
the invention arranges the pretreatment tower between the air draft component and the main absorption tower, the air draft component pumps the malodorous gas into the pretreatment tower, the main absorption tower atomizes the absorption liquid inside and sprays the atomized absorption liquid into the pretreatment tower, the atomized absorption liquid is diffused in the inner cavity of the pretreatment tower, when the malodorous gas is pretreated, the malodorous gas can be contacted with the absorption liquid, so as to realize the purpose of pretreating the malodorous gas before the main absorption tower, and the malodorous gas can be fully contacted and reacted with the absorption liquid because the absorption liquid is atomized in the pretreatment tower, thereby achieving better absorption effect, meanwhile, the malodorous gas entering the main absorption tower from the pretreatment tower can inevitably have some absorption liquid which is already polluted by atomized, after the gases are subjected to the main absorption tower, the atomized absorption liquid can promote the mixed gases to be more easily melted by the absorption liquid which is more easily liquefied, the probability of bubbles can be reduced, and the absorption treatment effect of malodorous gas can be enhanced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
Fig. 1 is a schematic structural view of a high concentration malodorous gas treatment system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a pretreatment column in an embodiment of the present invention.
The reference numerals in the drawings denote the following, respectively:
1. a main absorption tower; 2. an air draft assembly; 201. air draft outer tube; 202. an air exhaust inner pipe; 203. an external air extractor; 204. a tapered water resistant panel; 205. an internal draft fan; 3. a pretreatment tower; 4. a post-treatment cylinder; 5. a drying assembly; 501. a drying cylinder; 502. gypsum columns; 6. a tail processing assembly; 601. a filter cartridge; 602. activated carbon; 7. a bubble breaking member; 701. crushing the rotating shaft; 702. a crushing frame; 8. a uniform air discharge assembly; 801. an air outlet; 802. an exhaust pipe; 803. grid, 9, spray pump; 10. a spray tube; 11. an atomizing spray head; 12. and (4) a liquid pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 2, the present invention provides a high concentration malodorous gas treatment system, which comprises a main absorption tower 1 for absorbing harmful substances in the malodorous gas and an air draft assembly 2 for pumping the malodorous gas into the main absorption tower 1, wherein an absorption liquid is filled in the main absorption tower 1, and the harmful substances in the malodorous gas are absorbed through a chemical reaction, wherein the absorption liquid is prepared according to the components of the malodorous gas, so as to more accurately perform reaction and absorption on the harmful substances, and achieve a better cleaning and absorption effect.
Further, in this embodiment convulsions subassembly 2 with be provided with pretreatment column 3 between the main absorption tower 1, convulsions subassembly 2 with odorous gas pump send to in the pretreatment column 3, simultaneously main absorption column 1 sprays after with the atomizing of inside absorption liquid to in the pretreatment column 3, the absorption liquid that is the droplet form after the atomizing is diffused in the inner chamber of pretreatment column 3, after odorous gas carries out pretreatment column 3, can contact with the absorption liquid, because the absorption liquid has atomized, odorous gas and absorption liquid contact, reaction comparatively abundant to reach the absorption effect of preferred the reaction of odorous gas in the pretreatment column 3 absorbs the harmful substance in a part of odorous gas, afterwards updraft ventilator subassembly 2 pump odorous gas to in the main absorption column 1 again.
In the prior art, pretreatment structures also exist, but the general structures of the pretreatment structures are complex, and the treated reaction materials are not consistent with the main treatment structure, so that various raw materials are required to be accurate when the malodorous gas is treated, in the embodiment, the pretreatment tower 3 mainly functions to provide a closed cavity, the adopted raw materials are also the absorption liquid in the main absorption tower 1, and only the atomized raw materials are sprayed into the pretreatment tower 3, so that the structure, the raw materials and the operation are very simple and convenient, and the treatment effect of the malodorous gas can be enhanced.
Meanwhile, in this embodiment, the main absorption tower 1 is connected with the post-treatment pipeline 4, the post-treatment pipeline 4 is connected to the top of the main absorption tower 1, the malodorous gas enters the post-treatment pipeline 4 after escaping from the main absorption tower 1, a drying component 5 for absorbing liquid components in the malodorous gas and a tail treatment component 6 for enhancing the absorption treatment effect are arranged in the post-treatment pipeline 4, the drying component 5 comprises a drying cylinder 501, the drying cylinder 501 is fixed in the post-treatment pipeline 4, a gypsum column 502 is arranged in the drying cylinder 501, the tail treatment component 6 comprises a filter cylinder 601, the filter cylinder 601 is fixed in the post-treatment cylinder 4, the filter cylinder 601 is located behind the drying cylinder 501, and the filter cylinder 601 is filled with activated carbon 602.
In order to further strengthen the absorption treatment effect of malodorous gas, in this embodiment evenly bleed subassembly 8 in the main absorption tower 1, evenly bleed subassembly 8 includes that a plurality of even intervals set up the gas outlet 801 of main absorption tower 1 bottom, gas outlet 801 is vertical up and its bottom is connected with blast pipe 802, all gas outlet 801 all connects in same root blast pipe 802 is arranged through arranging gas outlet 801 even interval, makes gaseous and absorption liquid evenly contact to reach the purpose that promotes the absorption treatment effect of malodorous gas, simultaneously the port department of gas outlet 801 is provided with grid 803, and the big bubble just can be avoided appearing from the beginning in setting up of grid 803.
Since the malodorous gas enters from the bottom of the main absorption tower 1, and the pressure at the bottom of the main absorption tower 1 is the maximum, the pressure also becomes smaller with the increase of the height, and if small bubbles appear at the bottom, the small bubbles will become larger when rising to form large bubbles. Therefore, although the grid 803 is arranged so that large bubbles cannot be formed at the bottom, small bubbles cannot be avoided, and the small bubbles become large bubbles after rising.
In the embodiment, on the basis of the grid 803, a bubble-breaking component 7 is further added in the main absorption tower 1, the bubble-breaking component 7 includes a breaking rotating shaft 701 arranged along the vertical axis of the main absorption tower 1, the upper end of the breaking rotating shaft 701 extends out of the main absorption tower 1 and is connected with a motor, a plurality of breaking frames 702 in a net-frame structure are arranged on the breaking rotating shaft 701, the edge of the breaking frame 702 is closely adjacent to but not in contact with the inner wall of the main absorption tower 1, so that bubbles are prevented from passing through the breaking rotating shaft, bubbles inevitably appear after the malodorous gas is pumped into the main absorption tower 1 by the air pumping assembly 2, the generation of the bubbles can affect the absorption treatment effect of the malodorous gas, and the arrangement of the bubble-breaking component 7 can break the bubbles formed by the malodorous gas in the filtering liquid, so that the malodorous gas is fully contacted with the filtering liquid, thereby enhancing the adsorption filtration effect of the main absorption tower 1.
Through setting up the broken frame 702 that constantly rotates the stirring, can be smashed when the bubble is through this department promptly, and through setting up the broken frame 702 of multilayer, can be comparatively thorough with the bubble breakage ground to reinforcing foul gas's absorption treatment effect.
In addition, the absorption liquid is constantly flowed by the stirring of the crushing frame 702, so that the absorption of the absorption liquid is prevented from being uneven, and the absorption treatment effect of the malodorous gas is further enhanced.
Specifically, be provided with spray pump 9 on the lateral wall of main absorption tower 1, the output of spray pump 9 is connected with spray pipe 10, spray pipe 10 extends to in the preliminary treatment tower 3, just the end of spray pipe 10 is provided with atomizer 11, convulsions subassembly 2 includes convulsions outer tube 201 and convulsions inner tube 202, the lower extreme of convulsions outer tube 201 connect in the top of preliminary treatment tower 3, the upper end of convulsions outer tube 201 is connected with outer fan 203, outer fan 203 with foul gas pump extremely in the preliminary treatment tower 3, foul gas follows convulsions outer tube 201 gets into behind the preliminary treatment tower, its motion path with the motion path of atomizer 11 spun absorbing fluid is crossing to the two contacts of being convenient for.
The inner pipe 202 of the air draft is
Figure BDA0002716964580000061
The form, its lower part level set up extend to in the main absorption tower and with blast pipe 802 links to each other, and there is waterproof panel of toper 204 at its upper portion vertical setting and top through the leg joint, waterproof panel of toper 204 can make the absorption liquid slide along it extremely the bottom of preliminary treatment tower 3 to prevent the absorption liquid entering in the convulsions inner tube 202, the top of convulsions inner tube 202 is connected with interior air exhauster 205, interior air exhauster 205's output is vertical up, be provided with drawing liquid pump 12 in the preliminary treatment tower 3, the output of drawing liquid pump 12 extends to in the main absorption tower 1.
It should be noted that, the malodorous gas entering the main absorption tower 1 from the air draft inner tube 202 inevitably has some absorption liquid already contaminated with atomization, and after the mixed gas is subjected to the main absorption tower 1, the atomized absorption liquid can promote the absorption liquid which is easier for liquefaction of the mixed gas to melt, so that the probability of occurrence of bubbles can be reduced, and the absorption treatment effect of the malodorous gas can be enhanced.
According to the invention, the pretreatment tower 3 is arranged between the air draft assembly 2 and the main absorption tower 1, malodorous gas is pumped into the pretreatment tower 3 by the air draft assembly 2, meanwhile, the main absorption tower 1 atomizes the absorption liquid in the interior and sprays the atomized absorption liquid into the pretreatment tower 3, the atomized absorption liquid in a spray shape is diffused in the inner cavity of the pretreatment tower 3, and after the malodorous gas is subjected to the pretreatment tower 3, the malodorous gas can be contacted with the absorption liquid, so that the purpose of pretreating the malodorous gas before the main absorption tower 1 is realized, and the malodorous gas is more fully contacted and reacted with the absorption liquid due to the atomized absorption liquid in the pretreatment tower 3, so that a better absorption effect is achieved;
meanwhile, the malodorous gas entering the main absorption tower 1 from the pretreatment tower 3 inevitably has some absorption liquid which is already contaminated by atomization, and after the mixed gas is subjected to the main absorption tower 1, the atomized absorption liquid can promote the mixed gas to be more easily liquefied to be melted in the absorption liquid, so that the probability of bubbles can be reduced, and the absorption treatment effect of the malodorous gas can be enhanced;
moreover, by arranging the uniform air discharging assembly 8 and the air bubble crushing component 7, the probability of air bubble generation is reduced, the generated air bubbles are smaller, the generated air bubbles are crushed thoroughly, the adverse effect caused by the air bubbles is reduced as much as possible, the absorption liquid is uniformly mixed by stirring, and the absorption treatment effect of the malodorous gas is improved.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.

Claims (8)

1. A high concentration malodorous gas treatment system is characterized in that: the device comprises a main absorption tower (1) for absorbing harmful substances in the malodorous gas and an air draft assembly (2) for pumping the malodorous gas into the main absorption tower (1), wherein the main absorption tower (1) is filled with absorption liquid, the absorption liquid is prepared according to the components of the malodorous gas, and the harmful substances in the malodorous gas are absorbed through chemical reaction;
a pretreatment tower (3) is arranged between the air draft assembly (2) and the main absorption tower (1), malodorous gas is pumped into the pretreatment tower (3) by the air draft assembly (2), the main absorption tower (1) atomizes an internal absorption liquid and sprays the atomized absorption liquid into the pretreatment tower (3), the atomized absorption liquid reacts with the malodorous gas in the pretreatment tower (3) to absorb a part of harmful substances in the malodorous gas, and then the air draft assembly (2) pumps the malodorous gas into the main absorption tower (1);
the main absorption tower (1) is connected with aftertreatment pipeline (4), aftertreatment pipeline (4) connect in the top of main absorption tower (1), and foul gas follows get into after overflowing in main absorption tower (1) aftertreatment pipeline (4), be provided with in aftertreatment pipeline (4) and be arranged in absorbing the dry component (5) of liquid composition in the foul gas and be arranged in tail portion processing assembly (6) that strengthen the absorption treatment effect.
2. The high concentration malodorous gas treatment system as claimed in claim 1, wherein: a bubble breaking component (7) is arranged in the main absorption tower (1), and the bubble breaking component (7) is used for breaking bubbles formed by malodorous gas in the filtrate, so that the malodorous gas is fully contacted with the filtrate, and the adsorption and filtration effects of the main absorption tower (1) are enhanced;
bubble broken part (7) include the edge broken pivot (701) that the vertical axis of main absorption tower (1) set up, the upper end of broken pivot (701) is extended main absorption tower (1) to be connected with the motor, be provided with a plurality of broken framves (702) that are net rack column structure on broken pivot (701), the edge of broken frame (702) with the inner wall next-door neighbour of main absorption tower (1) does not contact, avoids the bubble to pass through from this department.
3. The high concentration malodorous gas treatment system as claimed in claim 1, wherein: evenly bleed subassembly (8) in main absorption tower (1), evenly bleed subassembly (8) and include that a plurality of even intervals set up gas outlet (801) of main absorption tower (1) bottom, gas outlet (801) is vertical just its bottom up be connected with blast pipe (802), all gas outlet (801) all connect in same root blast pipe (802), the port department of gas outlet (801) is provided with grid (803), can avoid appearing the big bubble.
4. The high concentration malodorous gas treatment system as claimed in claim 3, wherein: be provided with on the lateral wall of main absorption tower (1) spray pump (9), the output of spray pump (9) is connected with spray line (10), spray line (10) extend to in preliminary treatment tower (3), just the end of spray line (10) is provided with atomizer (11).
5. The high concentration malodorous gas treatment system as claimed in claim 4, wherein: convulsions subassembly (2) include convulsions outer tube (201) and convulsions inner tube (202), the lower extreme of convulsions outer tube (201) connect in the top of pretreatment tower (3), the upper end of convulsions outer tube (201) is connected with outer suction fan (203), outer suction fan (203) send foul gas to in pretreatment tower (3), foul gas follows convulsions outer tube (201) get into behind the pretreatment tower, its motion path with the motion path of atomizer (11) spun absorbing liquid is crossing to be convenient for the two contact.
6. The high concentration malodorous gas treatment system as claimed in claim 5, wherein: the air draft inner pipe (202) is
Figure FDA0002716964570000021
The form, its lower part level set up extend to in the main absorption tower and with blast pipe (802) link to each other, and there is waterproof panel of toper (204) at its upper portion vertical setting and top through the leg joint, waterproof panel of toper (204) can make the absorption liquid slide along it extremely the bottom of preliminary treatment tower (3) to prevent the absorption liquid and get into in convulsions inner tube (202), the top of convulsions inner tube (202) is connected with interior air exhauster (205), the output of interior air exhauster (205) is vertical up.
7. The high concentration malodorous gas treatment system as claimed in claim 1, wherein: be provided with drawing liquid pump (12) in preliminary treatment tower (3), the output of drawing liquid pump (12) extends to in main absorption tower (1).
8. The high concentration malodorous gas treatment system as claimed in claim 1, wherein: the drying assembly (5) comprises a drying cylinder (501), the drying cylinder (501) is fixed in the post-treatment pipeline (4), and a gypsum column (502) is arranged in the drying cylinder (501);
tail portion processing assembly (6) include cartridge filter (601), cartridge filter (601) are fixed in aftertreatment section of thick bamboo (4), just cartridge filter (601) are located the rear of drying cylinder (501), cartridge filter (601) intussuseption is filled with active carbon (602).
CN202011078785.6A 2020-10-10 2020-10-10 High concentration foul gas processing system Withdrawn CN112221336A (en)

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CN211098374U (en) * 2019-08-06 2020-07-28 赣州南科环保有限公司 High-efficient desulfurizing tower
CN211098372U (en) * 2019-08-06 2020-07-28 赣州南科环保有限公司 Efficient flue gas desulfurization tower

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