CN211025627U - Container with waste gas recovery device - Google Patents
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- CN211025627U CN211025627U CN201921545530.9U CN201921545530U CN211025627U CN 211025627 U CN211025627 U CN 211025627U CN 201921545530 U CN201921545530 U CN 201921545530U CN 211025627 U CN211025627 U CN 211025627U
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Abstract
The utility model provides a container with a waste gas recovery device, which comprises a container body, a first draught fan and a double high-voltage electric field electrostatic dust collector which are mutually communicated, wherein the container body is provided with an air outlet and a heating system, the heating system comprises a heating pipeline which extends into the container body and a smoke exhaust pipe which is connected with the heating pipeline and extends to the outer side of the container body; two high-voltage electric field electrostatic precipitator, including air inlet and gas outlet, filter screen, superhigh pressure ionization subassembly and low pressure absorption subassembly have set gradually along the direction of air inlet to gas outlet, two high-voltage electric field electrostatic precipitator's air inlet with the gas vent of container body is linked together. Through the mutual cooperation of two high-voltage electric field electrostatic precipitator and container body, the container among the prior art is poor to the exhaust-gas treatment effect, easily produces secondary pollution, and equipment takes up an area of big problem.
Description
Technical Field
The utility model relates to a container exhaust-gas treatment technical field, concretely relates to container with waste gas recovery device.
Background
At present, container transportation is spread all over the world, and the containerization degree of the bulk cargo transportation in developed countries reaches more than 80%. The China Container transportation started from the 50 s of the last century, and has been steadily developed for the 80 s, and the China International Container transportation has attracted keen attention in the world shipping circles in the 90 s. When the goods transported in the container are viscous liquid materials such as asphalt, oil refining residual oil and sulfur, the materials are easy to be in a solid state at normal temperature, so when the materials are loaded into the container in a liquid state and transported for a long distance to reach a destination, the materials are in a solid state or a non-flowable state, and the materials need to be heated again to be in a liquid state to be discharged from the container. It is therefore necessary to provide heating equipment within the container to heat the material so that it can flow out of the container body. For example, chinese patent document CN203033232U discloses a container with a direct-fired heating pipe, which comprises a container body, wherein the container body is provided with a heating port, the heating port is suitable for a direct-injection heating structure, the heating port is provided with a heating pipe, the heating pipe located in the container body comprises a heating part and a smoke exhaust pipe, and the heating part is divided into coil pipes. However, the materials generate a large amount of asphalt smoke and waste gas in the heating process, so that the surrounding environment is polluted, and the daily life of residents is influenced.
In 2017, in 10 months, the applicant detects the exhaust gas discharged by an asphalt container in a certain development area, and the result shows that the emission concentration of non-methane total hydrocarbons at the observation exhaust port of the asphalt container is 8.46mg/m3Far higher than the regulation of 'unit perimeter unorganized emission monitoring point concentration limit' in the 'comprehensive emission standard for atmospheric pollutants DB 11/501-2017', namely the emission concentration limit of non-methane total hydrocarbons is 1mg/m3According to the requirements of volatile organic compound unorganized emission control standard (GB37822-2019) implemented in 7/1/2019: materials of VOCsThe discharging (discharging and discharging) process is closed, and the discharged waste gas is discharged to a VOCs waste gas collecting and treating system; and the waste gas cannot be sealed, a local gas collecting measure should be adopted, and the waste gas should be discharged to a VOCs waste gas collecting and treating system. Therefore, research and development of a novel container with a waste gas recovery device are important for environmental protection, healthy life of people and development of enterprises.
Therefore, Chinese patent document CN108502564A discloses a petroleum asphalt tank container unloading device, the structure of the device comprises a support, a discharging main body and a support frame, wherein the discharging main body is fixedly arranged in the support, the support frame is welded with the support, the discharging main body comprises a container shell, a switching mechanism, a pneumatic mechanism, a stirring mechanism, an accelerating mechanism, a transmission mechanism, an air exhaust mechanism and a waste gas treatment mechanism, a connecting rotating barrel is driven by the rotation of a first screw rod, the first screw rod rotates, a toothed plate frame moves to enable a first gear to operate, through the transmission of fourth belt, the carousel that bleeds begins to rotate, and the air extractor begins to work, takes out waste gas from rabbling mechanism inside through the hose of giving vent to anger and handles inside the exhaust-gas treatment mechanism, and drive the water pump that has on the exhaust-gas treatment mechanism when drive mechanism moves and carry out work for the water of exhaust-gas treatment incasement portion can cyclic utilization.
Above-mentioned petroleum asphalt tank container carries out purification treatment through the mode of water treatment to the waste gas in the container, but, adopts this kind of simple and easy water treatment mode to handle the pitch tail gas that produces in the container heating process, and not only the treatment effect is poor, and the unable discharge to reach standard of processing back waste gas has still brought the secondary pollution of water in addition in the processing procedure, needs to prepare sewage treatment device in addition and carries out secondary treatment, and equipment is bulky, can't satisfy the demand of enterprise.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in that the container among the prior art can't handle waste gas or poor to the exhaust-gas treatment effect, easily produces secondary pollution, the big problem of equipment area. Thereby providing a container with an exhaust gas recovery device.
Therefore, the application provides a container with a waste gas recovery device, which comprises a container body, a first induced draft fan and a double high-voltage electric field electrostatic dust collector which are communicated with each other,
a container body provided with a heating system and an exhaust port;
the double-high-voltage electric field electrostatic dust collector comprises an air inlet and an air outlet, wherein a filter screen, an ultrahigh-voltage ionization component and a low-voltage adsorption component are sequentially arranged in the direction from the air inlet to the air outlet, and an air outlet of the container body is respectively communicated with the outlet end of the smoke exhaust pipe;
and the first induced draft fan is used for introducing the waste gas in the container body into the double high-voltage electric field electrostatic dust collector from the exhaust port through the air inlet.
Further, the ultrahigh-pressure ionization assembly comprises an ionization screen plate which is connected with an ultrahigh-pressure power supply to form an ultrahigh-pressure electric field to ionize particles.
Further, the low-voltage adsorption assembly comprises an adsorption screen plate which is connected with a low-voltage power supply to form a low-voltage electric field for adsorbing the particles.
Furthermore, one end of the double high-voltage electric field electrostatic dust collector, which is positioned at the air outlet, is communicated with a rare earth molecular sieve bed.
Further, a collecting disc is arranged at the bottom of the double high-voltage electric field electrostatic dust collector.
Further, the top of gas vent is provided with collects the cover, collects the cover and is linked together through the entry end of gas-supply pipe with first draught fan, the exit end of first draught fan is linked together through the gas-supply pipe with two high-voltage electric field electrostatic precipitator's air inlet.
Further, the heating system includes:
the heating pipeline extends into the container body;
the smoke exhaust pipe is connected with the heating pipeline and extends to the outer side of the container body;
the gas burner is arranged on the side wall of the heating pipeline;
and the second induced draft fan is arranged on the air inlet pipeline of the gas burner and used for introducing oxygen and gas required by combustion of the gas burner.
Further, the container body comprises an outer shell and an inner shell nested in the outer shell, a waste heat recovery area is formed between the outer shell and the inner shell, and an air outlet of the double-high-voltage electric field electrostatic dust collector is communicated with the waste heat recovery area through an induced air pipe.
Further, the waste heat recovery area comprises a gas inlet which is arranged at the bottom of the outer shell and is communicated with the outlet end of the induced air pipe and a gas outlet which is arranged at the top of the outer shell and is communicated with the outside atmosphere.
Furthermore, the temperature measuring device also comprises a temperature measuring component, wherein the temperature measuring component is arranged in the inner shell and used for detecting the temperature of materials in the inner shell.
The utility model discloses technical scheme has following advantage:
1. the utility model provides a container with waste gas recovery unit, through addding two high-voltage electric field electrostatic precipitator, including filter screen, superhigh pressure ionization subassembly and low pressure adsorption component, and through making the air inlet of two high-voltage electric field electrostatic precipitator communicate with the gas vent of container body, make pitch heating produce pitch cigarette waste gas can get into two high-voltage electric field electrostatic precipitator through the air inlet of two high-voltage electric field electrostatic precipitator and carry out purification treatment, these waste gases pass through filter screen filtration, superhigh pressure electric field ionization and low voltage electric field absorption in proper order, finally get rid of electrified liquid drop, particulate matter and most organic waste gas, reach the purpose of purifying flue gas, the experiment finds that filter screen, superhigh pressure ionization subassembly and low pressure adsorption component mutually support, have good treatment effect to pitch cigarette waste gas and flue gas, reach the relevant regulation in national city through the inspection, the discharge concentration of the asphalt smoke of the treated container is less than or equal to 1.5mg/m3The emission concentration of non-methane total hydrocarbon is less than or equal to 5mg/m3And the device does not cause secondary pollution and has the advantages of simple equipment and small occupied area.
2. The utility model provides a container with waste gas recovery device is located gas outlet one end through setting up tombarthite molecular sieve bed at two high-voltage electric field electrostatic precipitator to make the purified gas after two high-voltage electric field electrostatic precipitator purification treatment can get into tombarthite analysis sieve bed again in order to detach remaining organic contaminated gas wherein, further improve organic gaseous treatment effect.
3. The utility model provides a container with waste gas recovery device, through the setting of the container body including shell body and nested interior casing in it, form the waste heat recovery district between shell body and the interior casing, two high-voltage electric field electrostatic precipitator's gas outlet and waste heat recovery district are linked together through the induced duct to make and to utilize the induced duct to introduce the waste heat recovery district through the purified gas of two high-voltage electric field electrostatic precipitator processing back high temperature, carry out the heat exchange with the pitch of holding in the container body inner shell, thereby both can absorb the heat of purified gas, improve energy utilization and rate can practice thrift fossil fuel again, reduce the pollution to the environment.
4. The utility model provides a container with waste gas recovery device sets up the gas inlet that is linked together with the induced duct exit end and sets up the gas outlet that is linked together with external atmosphere at the outer casing top through the bottom at the outer casing, can prolong the high temperature and purify the gas at the circulation route in waste heat recovery district, and the heat exchange time of extension and pitch improves waste heat recovery efficiency.
5. The utility model provides a container with waste gas recovery device, the setting through the temperature measurement part is in the inner casing of container body to can detect the temperature of this internal material of container.
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 embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a container with an exhaust gas recovery device provided in embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a container with an exhaust gas recovery device provided in embodiment 2 of the present invention;
description of reference numerals:
1. a container body; 11. an exhaust port; 12. heating the pipeline; 13. a smoke exhaust pipe; 14. an outer housing; 15. an inner housing; 16. a waste heat recovery zone; 161. a gas inlet; 162. a gas outlet; 17. an induced draft pipe; 2. a first induced draft fan; 3. a double high-voltage electric field electrostatic precipitator; 31. an air inlet; 32. an air outlet; 33. a filter screen; 34. ionizing the screen plate; 35. adsorbing the screen plate; 4. a temperature sensor; 5. a chimney; 6. a rare earth molecular sieve bed; 7. a collection hood; 8. a collection tray.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to 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", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
It is described a container with an exhaust gas recovery device, comprising: a container body 1, a first induced draft fan 2 and a double high-voltage electric field electrostatic dust collector 3, wherein,
the container body 1, as shown in fig. 1, is used for accommodating the transported materials, and is provided with an exhaust port 11 and a heating system therein; the heating system comprises a heating pipeline 12 extending into the container body 1 and a smoke exhaust pipe 13 connected with the heating pipeline 12 and extending to the outer side of the container body 1; the heating system further comprises a gas burner arranged on the side wall of the heating pipeline 12 and a second induced draft fan arranged on an air inlet pipeline of the gas burner, and the second induced draft fan is used for introducing oxygen and gas required by combustion of the gas burner.
The double high-voltage electric field electrostatic precipitator 3, as shown in fig. 1, includes an air inlet 31 and an air outlet 32, and a filter screen 33, an ultrahigh-voltage ionization component and a low-voltage adsorption component are sequentially disposed along the direction from the air inlet 31 to the air outlet 32. A collecting cover 7 is arranged above the exhaust port 11 of the container body 1, the collecting cover 7 is communicated with the inlet end of a first induced draft fan 2 through a gas transmission pipe, the outlet end of the first induced draft fan 2 is communicated with the gas inlet 31 of the double high-voltage electric field electrostatic dust collector 3 through a gas transmission pipe, and the inlet end of the first induced draft fan 2 is communicated with the exhaust port 11 of the container body 1 through the collecting cover 7; the ultra-high voltage ionization assembly includes an ionization screen 34 connected to an ultra-high voltage power supply to form an ultra-high voltage electric field to ionize the particulate matter. The low-voltage adsorption component comprises an adsorption screen plate 35 which is connected with a low-voltage power supply to form a low-voltage electric field for adsorbing particles. The heating system is used for heating the asphalt contained in the container body 1, and the asphalt smoke waste gas generated in the heating process is dischargedThe air port 11 is discharged out of the container body 1, meanwhile, the flue gas generated by combustion of fuel gas or kerosene in the heating process is discharged through the smoke discharge pipe 13, because the air inlet 31 of the double high-voltage electric field electrostatic precipitator 3 is communicated with the air outlet 11 of the container body 1, under the action of the first induced draft fan 2, the asphalt smoke waste gas and the flue gas enter the double high-voltage electric field electrostatic dust collector 3 through the air inlet 31 of the double high-voltage electric field electrostatic dust collector 3 for purification treatment, the waste gas passes through the filter screen 33 in turn to filter dust and larger liquid drops, the ultrahigh voltage electric field is ionized and collides with air molecules to generate electrons and negative ions, then, the gas moves toward the positive electrode plate or the negative electrode plate under the electric power of the low-voltage electric field, is adsorbed by the adsorption screen 35, falls down by the self-gravity, and finally removes the charged liquid droplets, the particulate matters and most of the organic waste gas from the gas to obtain purified gas. The detected concentration of the asphalt smoke in the purified gas is less than or equal to 1.5mg/m3The emission concentration of non-methane total hydrocarbon is less than or equal to 5mg/m3Therefore, the invention is additionally arranged on the container through the filter screen 33, the ultrahigh pressure ionization component and the low pressure adsorption component, has good treatment effect on waste gas, reaches relevant regulations of national cities, does not bring secondary pollution in the treatment process, and has the advantages of simple equipment and small occupied area.
In this embodiment, one end of the double high-voltage electric field electrostatic precipitator 3 located at the air outlet 32 is communicated with a rare earth molecular sieve bed 6, or can be replaced by an activated carbon adsorption bed, the air outlet of the rare earth molecular sieve bed 6 is communicated with a chimney 5 for discharging purified air, so that the purified air purified by the double high-voltage electric field electrostatic precipitator 3 can enter a rare earth analysis sieve bed again to remove residual organic pollutant gas therein, and then is discharged to the atmosphere, wherein a rare earth molecular sieve is preferred, which is an activated carbon-based material, through a dipping and calcining process, rare earth elements are loaded on the activated carbon, and low-content Volatile Organic Compounds (VOCs) can be effectively removed by utilizing chemical modification, selective adsorption of the activated carbon and a dust removal mechanism of a particle bed, and in this embodiment, the first induced draft fan 2 is arranged between the container body 1 and the double high-voltage electric field electrostatic precipitator 3, as an alternative embodiment, the first induced draft fan 2 may also be communicated between the dual high-voltage electric field electrostatic precipitator 3 and the rare earth molecular sieve bed 6, and an exhaust silencer may be installed at an exhaust port of the first induced draft fan 2.
As a modified embodiment, the bottom of the double high-voltage electric field electrostatic dust collector 3 is provided with a collecting tray 8, and particulate matters and liquid drops flowing under the self gravity flow into the collecting tray 8, so that the collecting tray 8 can be cleaned regularly.
As a modified embodiment, another exhaust gas recycling device may be connected to the chimney 5, for example, the exhaust gas recycling device may be a chemical recycling box, and the purified gas treated by the dual high-voltage electric field electrostatic precipitator 3 and the rare earth molecular sieve bed 6 is introduced into the chemical recycling box and then introduced into the atmosphere, so as to further improve the purification effect.
Example 2
The difference between the present embodiment and embodiment 1 is that, as shown in fig. 2, the container body 1 includes an outer shell 14 and an inner shell 15 nested inside the outer shell 14, a waste heat recovery area 16 is formed between the outer shell 14 and the inner shell 15, the outlet end of the rare earth molecular sieve bed 6 is communicated with the waste heat recovery area 16 through an induced duct 17, so that the purified gas with high temperature after being processed by the dual high-voltage electric field electrostatic precipitator 3 and the rare earth molecular sieve bed 6 can be introduced into the waste heat recovery area 16 through the induced duct 17 during heating, and the purified gas with high temperature exchanges heat with the asphalt contained in the inner shell of the container body 1, thereby absorbing the heat of the purified gas, improving the energy utilization rate, saving fossil fuel, and reducing the pollution to the environment.
As an improved embodiment, the waste heat recovery area 16 includes a gas inlet 161 disposed at the bottom of the outer casing 14 and communicated with the outlet end of the induced air duct 17, and a gas outlet 162 disposed at the top of the outer casing 14 and communicated with the outside atmosphere, both the gas inlet 161 and the gas outlet 162 are communicated with the waste heat recovery area 16, so as to prolong the flow path of the high-temperature purified gas in the waste heat recovery area 16, prolong the heat exchange time with the asphalt, and improve the waste heat recovery efficiency, a chimney 5 communicated with the waste heat recovery area 16 is disposed at the gas outlet 162 of the container body 1, and the chimney 5 is communicated with the atmosphere to discharge the purified gas cooled after heat exchange into the atmosphere.
As an improved embodiment, the container comprises a temperature measuring component which is arranged in the inner shell 15 of the container body 1 and is used for detecting the temperature of the material in the inner shell 15. In this embodiment, the temperature measuring component may be a temperature sensor 4.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. A container with a waste gas recovery device is characterized by comprising a container body (1), a first induced draft fan (2) and a double high-voltage electric field electrostatic dust collector (3) which are communicated with each other,
the container comprises a container body (1) provided with an exhaust port (11) and a heating system;
the double-high-voltage electric field electrostatic dust collector (3) comprises an air inlet (31) and an air outlet (32), a filter screen (33), an ultrahigh-pressure ionization component and a low-pressure adsorption component are sequentially arranged in the direction from the air inlet (31) to the air outlet (32), and the air inlet (31) of the double-high-voltage electric field electrostatic dust collector (3) is communicated with an air outlet (11) of the container body (1);
the first induced draft fan (2) is used for introducing the waste gas in the container body (1) into the double high-voltage electric field electrostatic dust collector (3) from the exhaust port (11) through the air inlet (31).
2. The container with an exhaust gas recovery device of claim 1, wherein the ultrahigh voltage ionization assembly comprises an ionization screen (34) connected to an ultrahigh voltage power supply to form an ultrahigh voltage electric field to ionize the particulate matter.
3. The container with waste gas recovery device of claim 1, wherein the low-voltage adsorption module comprises an adsorption net plate (35) connected with a low-voltage power supply to form a low-voltage electric field to adsorb the particles.
4. The container with the waste gas recovery device of any one of claims 1 to 3, wherein the end of the double high-voltage electric field electrostatic precipitator (3) at the gas outlet (32) is communicated with the rare earth molecular sieve bed (6).
5. A container with an exhaust gas recovery device according to any one of claims 1 to 3, wherein a collecting tray is provided at the bottom of the double high voltage electric field electrostatic precipitator (3).
6. The container with the waste gas recovery device as claimed in any one of claims 1 to 3, wherein a collecting cover (7) is arranged above the exhaust port (11), the collecting cover (7) is communicated with the inlet end of the first induced draft fan (2) through a gas pipe, and the outlet end of the first induced draft fan (2) is communicated with the gas inlet (31) of the double high-voltage electric field electrostatic precipitator (3) through a gas pipe.
7. A container with an exhaust gas recovery device according to any one of claims 1 to 3, wherein the heating system comprises:
a heating pipeline (12) extending into the container body (1),
the smoke exhaust pipe (13) is connected with the heating pipeline (12) and extends to the outer side of the container body (1);
the gas burner is arranged on the side wall of the heating pipeline (12);
and the second induced draft fan is arranged on the air inlet pipeline of the gas burner and used for introducing oxygen and gas required by combustion of the gas burner.
8. The container with the waste gas recovery device according to any one of claims 1 to 3, wherein the container body (1) comprises an outer shell (14) and an inner shell (15) nested in the outer shell, a waste heat recovery area (16) is formed between the outer shell (14) and the inner shell (15), and the gas outlet (32) of the dual high-voltage electric field electrostatic precipitator (3) is communicated with the waste heat recovery area (16) through a wind guiding pipe (17).
9. The container with waste gas recovery device of claim 8, wherein the waste heat recovery area (16) comprises a gas inlet (161) arranged at the bottom of the outer shell (14) and communicated with the outlet end of the induced air pipe (17), and a gas outlet (162) arranged at the top of the outer shell (14) and communicated with the outside atmosphere.
10. The container with an exhaust gas recovery device according to claim 8, further comprising a temperature measuring member provided in the inner case (15) for detecting a temperature of the material in the inner case (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921545530.9U CN211025627U (en) | 2019-09-16 | 2019-09-16 | Container with waste gas recovery device |
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| CN201921545530.9U CN211025627U (en) | 2019-09-16 | 2019-09-16 | Container with waste gas recovery device |
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| CN211025627U true CN211025627U (en) | 2020-07-17 |
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| CN201921545530.9U Active CN211025627U (en) | 2019-09-16 | 2019-09-16 | Container with waste gas recovery device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112387079A (en) * | 2021-01-20 | 2021-02-23 | 山东中航泰达复合材料有限公司 | Waste gas multi-stage treatment device for innocent treatment |
| CN112594031A (en) * | 2020-12-08 | 2021-04-02 | 上研动力科技江苏有限公司 | Diesel engine with flue gas treatment and reutilization device |
| CN113578907A (en) * | 2021-08-02 | 2021-11-02 | 枣庄科技职业学院 | Adjustable dust removal device for international trade port container |
| CN113648752A (en) * | 2021-08-22 | 2021-11-16 | 郑海利 | High-altitude gas purification treatment equipment based on remote control of Internet of things |
-
2019
- 2019-09-16 CN CN201921545530.9U patent/CN211025627U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594031A (en) * | 2020-12-08 | 2021-04-02 | 上研动力科技江苏有限公司 | Diesel engine with flue gas treatment and reutilization device |
| CN112387079A (en) * | 2021-01-20 | 2021-02-23 | 山东中航泰达复合材料有限公司 | Waste gas multi-stage treatment device for innocent treatment |
| CN113578907A (en) * | 2021-08-02 | 2021-11-02 | 枣庄科技职业学院 | Adjustable dust removal device for international trade port container |
| CN113648752A (en) * | 2021-08-22 | 2021-11-16 | 郑海利 | High-altitude gas purification treatment equipment based on remote control of Internet of things |
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