CN114931839A - Waste gas recovery device and method for nanoparticle animal inhalation test - Google Patents

Waste gas recovery device and method for nanoparticle animal inhalation test Download PDF

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Publication number
CN114931839A
CN114931839A CN202210485843.XA CN202210485843A CN114931839A CN 114931839 A CN114931839 A CN 114931839A CN 202210485843 A CN202210485843 A CN 202210485843A CN 114931839 A CN114931839 A CN 114931839A
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China
Prior art keywords
filtering
drying
desulfurization
air inlet
nanoparticle
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CN202210485843.XA
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Chinese (zh)
Inventor
李玮
田崇轩
雷晟暄
汪先锋
王平
韩毅
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Shandong University
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Shandong University
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Priority to CN202210485843.XA priority Critical patent/CN114931839A/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
    • 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
    • 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
    • B01D53/261—Drying gases or vapours by adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/002—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using a central suction system, e.g. for collecting exhaust gases in workshops
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Treating Waste Gases (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The waste gas recovery device comprises a desulfurization device, a drying device and a filtering device, wherein the desulfurization device comprises a main body provided with a containing cavity, a desulfurizer is arranged in the containing cavity, a desulfurization air inlet and a desulfurization air outlet communicated with the containing cavity are formed in the main body, the drying device comprises a drying pipe, a drying agent is arranged in the drying pipe, the filtering device comprises a filtering air inlet and a filtering air outlet, a filter element is arranged between the filtering air inlet and the filtering air outlet, and the desulfurization air outlet is communicated with the filtering air inlet through the drying pipe. The waste gas is subjected to desulphurization, drying and filtering and then discharged into the atmosphere, so that the atmosphere is not affected.

Description

Waste gas recovery device and method for nanoparticle animal inhalation test
Technical Field
The invention relates to the technical field of waste gas recovery, in particular to a waste gas recovery device and method for a nanoparticle animal inhalation test.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In physics, nanoparticles, also known as nanopowders, refers to microscopic particles on the nanometer scale, which are defined as particles smaller than 100 nanometers in at least one dimension. The nanometer particles can stay in the atmosphere for a long time and can be gathered in the lung of a human body after being inhaled into the human body, so that the health of people is influenced.
Disclosure of Invention
In order to solve the above problems, the present disclosure provides a waste gas recovery apparatus and method for nanoparticle animal inhalation test, which desulfurizes, dries, and filters waste gas, and then discharges the waste gas into the atmosphere, without affecting the atmosphere.
In order to achieve the purpose, the following technical scheme is adopted in the disclosure:
the first aspect provides a waste gas recovery device to nano-particle animal suction test, including desulphurization unit, drying device and filter equipment, desulphurization unit is including being provided with the main part that holds the chamber, holds the intracavity and sets up the desulfurizer, be provided with in the main part with hold desulfurization air inlet and the desulfurization gas outlet that the chamber is linked together, drying device includes the drying tube, sets up the drier in the drying tube, filter equipment is including filtering the air inlet and filtering the gas outlet, filter the air inlet and filter and set up the filter core between the gas outlet, the desulfurization gas outlet passes through the drying tube and filters the air inlet intercommunication.
In a second aspect, there is provided a method of waste gas recovery for a nanoparticle animal inhalation test, comprising:
the waste gas enters a desulphurization device through a desulphurization air inlet for desulphurization;
the desulfurized gas enters a drying device for drying, particle adsorption and re-desulfurization;
and the gas after drying, particle adsorption and re-desulfurization enters a filtering device for filtering and then is discharged.
Compared with the prior art, this disclosed beneficial effect does:
1. the waste gas discharged by the nanoparticle animal inhalation test is sequentially desulfurized, dried and filtered and then discharged into the atmosphere, so that the influence on the quality of the atmosphere is prevented, and the harm to a human body is reduced.
2. The device disclosed by the invention is little influenced by temperature and humidity, has a better treatment effect on the nano-particle waste gas of various experiments, and is strong in applicability.
3. The method does not produce waste water and waste residues, cannot influence the environment, has low energy consumption, simple device, simple and common used materials and low price, and reduces the cost of treating the waste gas of the nano particles.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a flow chart of the exhaust gas treatment of the apparatus disclosed in example 1;
fig. 2 is a schematic view of the drying apparatus of the apparatus disclosed in example 1.
Wherein: 1. spherical chamber, 2, dry air inlet, 3, dry gas outlet.
The specific implementation mode is as follows:
the present disclosure is further described with reference to the following drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only relational terms determined for convenience in describing structural relationships of the parts or elements of the present disclosure, and do not refer to any parts or elements of the present disclosure, and are not to be construed as limiting the present disclosure.
In the present disclosure, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and mean either a fixed connection or an integrally connected or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present disclosure can be determined on a case-by-case basis by persons skilled in the relevant art or technicians, and are not to be construed as limitations of the present disclosure.
Example 1
The embodiment discloses a waste gas recovery device for a nanoparticle animal inhalation test, which comprises a desulfurization device, a drying device and a filtering device, wherein the desulfurization device comprises a main body provided with an accommodating cavity, a desulfurizer is arranged in the accommodating cavity, a desulfurization air inlet and a desulfurization air outlet which are communicated with the accommodating cavity are arranged on the main body, the drying device comprises a drying pipe, a drying agent is arranged in the drying pipe, the filtering device comprises a filtering air inlet and a filtering air outlet, a filter element is arranged between the filtering air inlet and the filtering air outlet, and the desulfurization air outlet is communicated with the filtering air inlet through the drying pipe.
Further, the desulfurizing agent is a mixed slurry containing sodium hydroxide and calcium oxide.
Furthermore, a suction device is arranged at the position of the desulfurization air inlet and comprises a suction fan.
Further, set up the sphere on the drying tube and hold the chamber, the both ends that the sphere held the chamber set up dry air inlet and dry gas outlet respectively, and the drier sets up in the sphere and holds the intracavity, dry air inlet and desulfurization gas outlet intercommunication, dry gas outlet and filtration air inlet intercommunication.
Further, the drying agent is a mixture containing soda lime and activated carbon.
Further, soda lime is a mixture comprising calcium oxide, water, sodium hydroxide, and sodium hydroxide.
Furthermore, the drying tube is communicated with the desulfurization gas outlet and the filtration gas inlet to form sealing devices.
Further, filter equipment is including filtering the shell, and the both ends of filtering the shell set up respectively and filter the air inlet and filter the gas outlet, and the inside of filtering the shell sets up the filter core, and the gas of filtering the air inlet and getting into filter equipment can lead to filter the back and discharge by the filtration gas port through filtering the core.
Furthermore, the filter element comprises a static grid, a HEPA filter screen, an activated carbon layer, a photocatalyst layer, a negative ion membrane layer and an ozone layer which are arranged in sequence.
The waste gas recovery device for the nanoparticle animal inhalation test disclosed in the embodiment is explained in detail.
As shown in figure 1, the exhaust gas recovery device for the nanoparticle animal inhalation test comprises a desulfurization device, a drying device and a filtering device.
The waste gas aiming at the nano-particle animal inhalation test firstly enters a desulfurization device for desulfurization, the desulfurized gas enters a drying device for drying, particle adsorption and desulfurization again, and the gas discharged from the drying device enters a filtering device for filtering and then is discharged into the atmosphere.
The desulfurizing device comprises a main body provided with a containing cavity, a desulfurizing agent is arranged in the containing cavity, and a desulfurizing air inlet and a desulfurizing air outlet which are communicated with the containing cavity are arranged on the main body.
The desulfurization air inlet is provided with an air suction device, the air suction device comprises an air suction fan, the exhaust gas of a nanoparticle animal suction test is sucked into the containing cavity of the main body through the desulfurization air inlet by the air suction fan in the air suction device, and desulfurization is carried out by a desulfurizer.
The desulfurizing agent is an alkaline desulfurizing agent which is a mixed slurry containing sodium hydroxide and calcium oxide, sulfur in waste gas, acid gases such as dioxide of the sulfur, carbon dioxide and the like, and acid particles directly react with the sodium hydroxide and the calcium oxide, or indirectly react with the sodium hydroxide and the calcium oxide after being dissolved in water to generate sulfur removal products such as calcium sulfate, sodium sulfate and the like, so that the primary sulfur removal of the waste gas is realized.
And the gas desulfurized by the desulfurization device is discharged from the desulfurization gas outlet and enters a drying device for drying.
Drying device includes the drying tube, sets up the dry air inlet 2, the sphere that communicate in proper order on the drying tube and holds chamber 1 and dry gas outlet 3, and the sphere holds and sets up the drier in the chamber 1, and dry air inlet 2 and desulfurization gas outlet intercommunication, dry gas outlet and filtration air inlet intercommunication.
Wherein, the drying agent is a mixture containing soda lime and activated carbon, and the soda lime is a mixture containing 76% of calcium oxide, 20% of water, 3% of sodium hydroxide and 1% of sodium hydroxide.
Gas discharged from the desulfurization device enters the drying device through the drying gas inlet 2, the gas is dried, particle adsorbed and desulfurized again through the drying agent, and the dried gas is discharged through the drying gas outlet 3.
The specific gaseous of getting into drying device is dried and is further absorbed the acidic material in the gas through soda lime, and the active carbon carries out preliminary absorption to particulate matters such as metal particle in the gas and dust, and the velocity of being hindered to diminish by the adsorbed tiny particle behind the active carbon simultaneously, is convenient for carry out the meticulous filtration in filter equipment.
The filter device comprises a filter shell, wherein a filter air inlet and a filter air outlet are respectively arranged at two ends of the filter shell, a filter element is arranged in the filter shell, and gas entering the filter device from the filter air inlet can be discharged from an air outlet through the filter element after being filtered.
The filtering air inlet is communicated with the drying air outlet, the gas discharged from the drying air outlet 3 enters the filtering device through the filtering air inlet, the gas is finely filtered by the filter element, and the filtered gas is discharged through the filtering gas port and is discharged into the atmosphere through the guide pipe.
The filter element comprises a static electricity network, a HEPA filter screen, an active carbon layer, a photocatalyst layer, a negative ion membrane layer and an ozone layer which are arranged in sequence. Wherein, the installation direction when the filter core is installed in filtering the shell does, sets gradually electrostatic net, HEPA filter screen, activated carbon layer, photocatalyst layer, anion membrane layer and ozone layer from filtering the air inlet to filtering gas vent direction.
The filter element mainly adsorbs macromolecules in gas entering the filtering device through a static grid, the micromolecules are decelerated to enable the micromolecules to fall under the action of gravity, the filter screen is unevenly woven to form a large amount of air vortexes, small particles are adsorbed to the HEPA filter screen under the action of air flow, ultramicroparticles do Brownian motion to impact the HEPA filter screen and are purified under the influence of Van der Waals force, the active carbon mainly has adsorption effect and can adsorb some common pollutants in nano particles, and the active carbon adsorption method is a method which is most widely, mature, safest, most reliable in effect and most diversified in absorbed substances. The photocatalyst layer generates hydroxyl free radicals after being illuminated, and reacts with organic substances in gas to generate non-toxic inorganic substances, so that formaldehyde, benzene, ammonia gas and the like can be effectively decomposed and converted into H2O and CO2, ammonia nitride, sulfide and various odors in the atmosphere are removed through oxidation, and the air purification effect is achieved. The anion membrane has the function that anions are combined with oxygen molecules in the air to generate negative oxygen ions, so that some harmful gases in nano particles can be effectively removed, bacteria can be eliminated, the PM2.5 value is reduced, and the function of removing peculiar smell is achieved. The ozone can purify harmful substances such as bacteria in the air, and the like, thereby achieving the effects of disinfection and sterilization.
The gas entering the filtering device is subjected to fine filtering sequentially through a static electricity network, a HEPA filter screen, an activated carbon layer, a photocatalyst layer, a negative ion membrane layer and an ozone layer to obtain the gas meeting the environmental quality requirement, and when the gas is discharged into the atmosphere, the atmosphere quality cannot be influenced.
In order to prevent the waste gas of the nano-particle animal inhalation test from leaking in the treatment process and influencing the environment, sealing devices are arranged at the communication positions of the drying pipe, the desulfurization gas outlet and the filtering gas inlet.
Specifically, sealing device is the sealing washer, and at desulfurization gas outlet and dry air inlet junction, dry gas outlet all sets up the sealing washer with filtering the air inlet junction and seals, prevents that gas leakage.
The utility model discloses a waste gas recovery device to nano-particle animal inhalation test has realized the purification to waste gas through carrying out desulfurization, drying, filtration to waste gas for when the gas emission atmosphere after the purification, can not cause the influence to the atmosphere. The device has the characteristics of small influence of temperature and humidity, no generation of waste water and waste residue, low energy consumption and the like, has better applicability to the treatment of the nano-particle waste gas of various experiments, and has the advantages of simple device, simple and common raw materials, low price and low cost.
Example 2
In this embodiment, a method of waste gas recovery for a nanoparticle animal inhalation test is disclosed, comprising:
the waste gas enters a desulphurization device through a desulphurization air inlet for desulphurization;
the desulfurized gas enters a drying device for drying, particle adsorption and re-desulfurization;
and the gas after drying, particle adsorption and re-desulfurization enters a filtering device for filtering and then is discharged.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.

Claims (10)

1. The utility model provides a waste gas recovery device to nano-particle animal suction test, a serial communication port, including desulphurization unit, drying device and filter equipment, desulphurization unit holds the intracavity including being provided with the main part that holds the chamber, holds the intracavity and sets up the desulfurizer, be provided with in the main part with hold the desulfurization air inlet and the desulfurization gas outlet that the chamber is linked together, drying device includes the drying tube, set up the drier in the drying tube, filter equipment is including filtering the air inlet and filtering the gas outlet, filter the air inlet and filter and set up the filter core between the gas outlet, the desulfurization gas outlet passes through the drying tube and filters the air inlet intercommunication.
2. The exhaust gas recovery device for the nanoparticle animal inhalation test of claim 1, wherein the desulfurizing agent is a mixed slurry containing sodium hydroxide and calcium oxide.
3. The exhaust gas recovery device for the nanoparticle animal inhalation test as claimed in claim 1, wherein an air suction device is provided at the desulfurization air inlet, and the air is sucked into the desulfurization device through the air suction device.
4. The exhaust gas recovery device for the nanoparticle animal inhalation test as claimed in claim 1, wherein the drying tube is provided with a spherical accommodating chamber, the two ends of the spherical accommodating chamber are respectively provided with a drying gas inlet and a drying gas outlet, the drying agent is disposed in the spherical accommodating chamber, the drying gas inlet is communicated with the desulfurization gas outlet, and the drying gas outlet is communicated with the filtering gas inlet.
5. The exhaust gas recovery device for nanoparticle animal inhalation testing of claim 1, wherein the desiccant is a mixture comprising soda lime and activated charcoal.
6. The exhaust gas recovery device for nanoparticle animal inhalation testing of claim 1, wherein the soda lime is a mixture comprising calcium oxide, water, sodium hydroxide and sodium hydroxide.
7. The exhaust gas recovery device for the nanoparticle animal inhalation test as claimed in claim 1, wherein the drying tube is provided with a sealing device at the communication part with the desulfurization air outlet and the filtration air inlet.
8. The exhaust gas recovery device for the nanoparticle animal inhalation test as claimed in claim 1, wherein the filtering device comprises a filtering housing, a filtering air inlet and a filtering air outlet are respectively disposed at two ends of the filtering housing, a filter element is disposed inside the filtering housing, and air entering the filtering device from the filtering air inlet can be filtered by the filter element and then exhausted from the filtering air outlet.
9. The exhaust gas recovery device for the nanoparticle animal inhalation test as claimed in claim 1, wherein the filter element comprises a static electricity net, a HEPA filter screen, an activated carbon layer, a photocatalyst layer, a negative ion membrane layer and an ozone layer, which are sequentially arranged, the static electricity net is communicated with the filter air inlet, and the ozone layer is communicated with the filter air outlet.
10. A method of waste gas recovery for nanoparticle animal inhalation testing, comprising:
the waste gas enters a desulphurization device through a desulphurization air inlet for desulphurization;
the desulfurized gas enters a drying device for drying, particle adsorption and re-desulfurization;
and the gas after drying, particle adsorption and re-desulfurization enters a filtering device for filtering and then is discharged.
CN202210485843.XA 2022-05-06 2022-05-06 Waste gas recovery device and method for nanoparticle animal inhalation test Pending CN114931839A (en)

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CN202210485843.XA CN114931839A (en) 2022-05-06 2022-05-06 Waste gas recovery device and method for nanoparticle animal inhalation test

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CN202210485843.XA CN114931839A (en) 2022-05-06 2022-05-06 Waste gas recovery device and method for nanoparticle animal inhalation test

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Citations (5)

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Publication number Priority date Publication date Assignee Title
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CN212680384U (en) * 2020-05-14 2021-03-12 宋文学 Intelligent electric power pollution administers device
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CN215609977U (en) * 2021-05-12 2022-01-25 广东源创环境技术有限公司 Module assembled exhaust gas purification device

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CN212383473U (en) * 2020-04-23 2021-01-22 甘肃省鑫源能源有限公司 Desulfurization and denitrification dust removal device
CN212680384U (en) * 2020-05-14 2021-03-12 宋文学 Intelligent electric power pollution administers device
CN111569633A (en) * 2020-05-20 2020-08-25 石河子大学 Flue gas desulfurization drying device
CN213668533U (en) * 2020-11-05 2021-07-13 潍坊龙达锌业有限公司 Smoke and dust desulfurization dust purification device based on zinc oxide production
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