CN214597986U - Wet flue gas dust removal device - Google Patents
Wet flue gas dust removal device Download PDFInfo
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- CN214597986U CN214597986U CN202022740491.7U CN202022740491U CN214597986U CN 214597986 U CN214597986 U CN 214597986U CN 202022740491 U CN202022740491 U CN 202022740491U CN 214597986 U CN214597986 U CN 214597986U
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Abstract
The utility model relates to the technical field of waste gas treatment, and discloses a wet flue gas dust removal device, which comprises a gas collecting hood, a gas collecting pipe, a wet dust removal tower and a precipitation separation device which are connected by pipelines; the gas collecting hood is used for collecting dust-containing waste gas generated by the waste gas source and then sending the dust-containing waste gas to the wet dust removal tower through the gas collecting pipe for washing and dust removal; a Venturi rod layer, a spraying layer and a demisting device are arranged in the wet dust removal tower, an air inlet is arranged at the side part of the wet dust removal tower, an exhaust funnel is arranged at the top part of the wet dust removal tower, and a drain pipe is arranged at the bottom part of the wet dust removal tower; and the precipitation separation device is used for purifying the sewage generated by washing and dedusting and then sending the sewage to the wet dust removal tower to be recycled as spray water. The utility model discloses a flue gas wet dedusting device process reasonable in design, equipment easily controls, and dust collection efficiency is high, and equipment is difficult for blockking up, is convenient for wash, and whole device has advantages such as the energy consumption is low, the operation is stable, easy maintenance.
Description
Technical Field
The utility model relates to a waste gas treatment technical field, more specifically relates to a flue gas wet dedusting device.
Background
In the steel industry, the smoke generated in the operation process of rod mill production line equipment contains a large amount of dust particles, and the direct emission or dissipation not only can pollute the environment, but also can cause harm to the bodies of workers. With the coming of the national policy of energy conservation and emission reduction, strict regulations and requirements are provided for the concentration of dust particles in a working post, and the requirement for the emission of dust particles in a factory is also stricter.
According to the new national emission standard of the total amount of dust particles, a rod mill production line is required to be provided with a dust removal device in a matching way, so that the smoke concentration of the discharged smoke in the production process reaches the emission standard, and the emission limit value of the atmospheric pollutants of the matched dust removal device is required to be as follows: centralized emission of particulate matter: less than or equal to 20mg/m3And dust particles in the working position: less than or equal to 5mg/m3。
At present, the flue gas dust removal in the steel industry mostly adopts bag-type dust removal, electric dust removal or electric bag combined dust removal, however, electric dust removal equipment is more complicated, the investment is large, the energy consumption is high, the installation, allocation and transportation and maintenance requirements of the equipment are high, certain selectivity is provided for dust particles, all the dust particles can not obtain higher purification efficiency, the flue gas channel resistance of the bag-type dust removal is large, the filter bag dismounting frequency is high, and time and labor are wasted.
Therefore, it is necessary to provide a wet flue gas dust removal device which solves the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a flue gas wet dedusting device, mainly used solve the flue gas dust removal in present steel industry and adopt bag-type dust removal, electric precipitation or electric bag to combine to remove dust mostly, however electric precipitation equipment is more complicated, and the energy consumption is high, and the installation of equipment, transfer and maintenance require highly, and have certain selectivity to the dust, and the flue gas channel resistance of bag-type dust removal is big, and filter bag dismouting frequency is high, the problem that wastes time and energy.
For solving the technical problem, the utility model discloses the technical scheme who adopts as follows:
a wet flue gas dust removal device comprises a gas collecting hood, a gas collecting pipe, a wet dust removal tower and a precipitation separation device which are connected through a pipeline;
the gas collecting hood is arranged above the waste gas source and used for collecting dust-containing waste gas generated by the waste gas source and then sending the collected dust-containing waste gas to the wet dust removal tower through the gas collecting pipe for dust removal;
the wet dust removal tower is characterized in that a Venturi rod layer, a spraying layer and a demisting device are sequentially arranged in the wet dust removal tower from bottom to top, an air inlet is formed in the side part of the lower section of the wet dust removal tower, an exhaust funnel is arranged at the top of the wet dust removal tower, a drain pipe is arranged at the bottom of the wet dust removal tower, dust-containing flue gas conveyed by the gas collecting pipe enters the wet dust removal tower from the air inlet, most dust particles in the flue gas are removed after washing, dedusting and demisting treatment of the Venturi rod layer, the spraying layer and the demisting device in sequence, and finally the flue gas is discharged into the atmosphere through the exhaust funnel at the top of the wet dust removal tower;
and the precipitation separation device is used for separating and purifying sewage generated by washing and dedusting in the wet dedusting tower and then sending the sewage to the wet dedusting tower to be recycled as spray water.
Further, the venturi rod layer comprises many parallel distribution's rod iron, the venturi rod layer is in wet dust removal tower interval is provided with the multilayer. The venturi rod layer is arranged to greatly improve the flow velocity of the flue gas when the flue gas passes through the venturi rod layer, and spray water can be adhered to the surface of the venturi rod layer due to the wall attachment effect of water, when the flue gas is in contact with each other in a high speed, the original liquid level on the venturi rod layer can be peeled off to form a new gas-liquid contact surface, so that the gas-liquid two-phase mass transfer rate is accelerated, in addition, a gas-liquid turbulent flow layer can be formed on the upper part of the venturi rod layer, and in the turbulent flow layer, gas-liquid contact and collision are violent, so that the absorption effect of the spray water on dust particles in the flue gas is greatly improved; the venturi rod layer can also improve the gas distribution state in the wet dust removal tower, and the effect is cut apart through the air current, can optimize the distribution of dusty flue gas on the whole cross section of wet dust removal tower, makes it fully contact with the shower water, improves flue gas washing dust collection efficiency.
Further, the spraying layer consists of a spraying water pipe and a plurality of spiral nozzles, the spiral nozzles are fixedly connected with the spraying water pipe, and the spiral nozzles are uniformly distributed in the wet dust removal tower in a radial direction and in an annular shape; and the spray water from the precipitation separation device is distributed to each spiral nozzle by the spray water pipe, is dispersed by the spiral nozzles to form water mist which is sprayed from top to bottom, and is collided and contacted with the dust-containing gas flowing from bottom to top and fully mixed, so that dust particles in the flue gas are washed. The spiral nozzle is a typical impact type dispersion spraying part, no parts are arranged in the spiral nozzle, but a smooth channel is formed, the spiral nozzle is quite natural in design and has the characteristic of blockage resistance, and water flow is changed into tiny liquid beads to be sprayed out to form fog after being tangent to and collided with a continuously reduced spiral surface on the periphery of the spiral nozzle.
Furthermore, the defogging device comprises the multilayer wave form board defroster that top-down interval set up, and each layer wave form board defroster all sets up roof ridge formula structure. Set up defogging device's aim at, the flue gas is after washing dust removal, wherein can smuggle a large amount of tiny liquid drops secretly, and the direct water consumption that discharges not only can lead to whole device is big, can increase exhaust emission moreover, consequently need carry out discharge to reach standard after the dewatering defogging to the flue gas through defogging device.
Furthermore, each layer wave plate defroster of defogging device all disposes a plurality of washing nozzles for adopt the clear water to spray the washing to the wave plate defroster, prevent that the wave plate defroster from blockking up and leading to that the defogging effect is poor or the air current resistance is big.
Furthermore, a water replenishing tank is arranged beside the precipitation separation device, a water inlet pipe is arranged at the top of the water replenishing tank, a water replenishing pipe communicated with the precipitation separation device is arranged at the bottom of the water replenishing tank, and a water replenishing pump is arranged on the water replenishing pipe; the bottom of the water replenishing tank is also provided with a flushing water pipe communicated with a flushing nozzle of the demisting device, and a flushing water pump is arranged on the flushing water pipe, so that when the water quantity of the system is insufficient, a water source can be replenished in time, and the running requirement of the device is met.
Furthermore, the air collecting pipe is provided with an air feeder for sucking and conveying the dust-containing waste gas, so that the flow speed of the dust-containing waste gas in the device is improved, and the dust removal efficiency is improved.
Further, the precipitation separation device comprises a precipitation tank, a liquid seal tank and a clean water tank; a drain pipe outlet arranged at the bottom of the wet dust removal tower extends below the liquid level of the liquid seal tank, sewage generated by washing dust-containing waste gas is discharged into the liquid seal tank, the sewage flowing out of the liquid seal tank enters the sedimentation tank again for sedimentation and separation, dust particles in the sewage are settled to the bottom of the sedimentation tank, and separated clean water overflows to the clean water tank; a circulating water pipe is led out from the bottom of the clean water tank, and a circulating water pump is further arranged on the circulating water pipe, so that clean water is conveyed to the spraying layer of the wet dust removal tower to be recycled as spraying water, water consumption is saved, and the running cost of the device is reduced.
Furthermore, a drain pipe is led out from the bottom of the clean water tank, and a drain pump is arranged on the drain pipe and used for discharging sediments at the bottom of the clean water tank.
Furthermore, a mud scraper is installed on the sedimentation tank, a sunken mud collection pit is arranged on one side of the bottom of the sedimentation tank, and mud deposited on the bottom of the sedimentation tank is scraped into the mud collection pit by a scraping rake of the mud scraper and is intensively sent to a subsequent sewage treatment working section for treatment.
Furthermore, a stirrer is arranged in the liquid seal tank, so that dust particles in the sewage are prevented from depositing in the liquid seal tank.
Compared with the prior art, the utility model discloses technical scheme's beneficial effect is:
1. the wet flue gas dust removal device has reasonable process design, less equipment quantity and low investment cost, all the equipment are mutually connected in series, which is favorable for continuous operation, and the wet dust removal principle is adopted, so that the dust-containing flue gas generated by a waste gas source is collected by the gas collecting hood and the gas collecting pipe and is conveyed into the wet dust removal tower, and is washed, dedusted and demisted by the Venturi rod layer, the spraying layer and the demisting device in sequence, and dust particles in the flue gas are removed and finally discharged by the exhaust funnel at the top of the wet dust removal tower of the dust removal tower;
2. the wet flue gas dust removal device is easy to operate and control, high in dust removal efficiency, simple in structure of each equipment internal part, convenient to install, not easy to block and convenient to clean, and the whole device has the advantages of low energy consumption, stable operation, convenience in maintenance and the like, and is suitable for popularization and application;
3. the utility model discloses a supporting sediment separator that is provided with of flue gas wet dedusting device can carry out precipitation separation and purification treatment with the sewage that produces dust-laden flue gas washing dust removal in the wet dedusting tower, then send to the wet dedusting tower as spray water cyclic utilization to practice thrift the water consumption, be favorable to the environmental protection, and can reduce device running cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a process flow chart of the wet flue gas dust removal device of the present invention.
In the figure: 1-gas collecting hood, 2-gas collecting pipe, 21-blower, 3-wet dust removing tower, 31-Venturi rod layer, 32-spraying layer, 321-spraying water pipe, 322-spiral nozzle, 33-demisting device, 331-flushing nozzle, 34-gas inlet, 35-exhaust funnel, 36-water discharging pipe, 4-precipitation separation device, 41-sedimentation tank, 411-mud scraper, 412-mud collecting pit, 42-liquid seal tank, 421-stirrer, 43-clear water tank, 431-circulating water pipe, 432-circulating water pump, 433-sewage discharging pipe, 434-sewage discharging pump, 44-water supplementing tank, 441-water inlet pipe, 442-water supplementing pipe, 443-water supplementing pump, 444-flushing water pipe and 445-flushing water pump.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for better illustration of the present embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The terms "upper", "lower", "front", "rear", "inner", "outer", and the like referred to in the embodiments of the present invention are used for indicating the orientation or positional relationship based on the orientation or positional relationship 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 in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, so to speak, connected internally to the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
For the purpose of clearly understanding the technical features, objects, and effects of the present invention, the detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1, a wet flue gas dust removal device comprises a gas collecting hood 1, a gas collecting pipe 2, a wet dust removal tower 3 and a precipitation separation device 4 which are connected through a pipeline;
the gas collecting hood 1 is arranged above the waste gas source and used for collecting dust-containing waste gas generated by the waste gas source and then sending the collected dust-containing waste gas to the wet dust removal tower 3 through the gas collecting pipe 2 for dust removal treatment;
a venturi rod layer 31, a spraying layer 32 and a demisting device 33 are sequentially arranged in the wet dust removal tower 3 from bottom to top, an air inlet 34 is arranged at the side part of the lower section of the wet dust removal tower 3, an exhaust funnel 35 is arranged at the top of the wet dust removal tower 3, a drain pipe 36 is arranged at the bottom of the wet dust removal tower 3, dust-containing flue gas conveyed by the gas collecting pipe 2 enters the wet dust removal tower 3 from the air inlet 34, and after washing, dust removal and water removal treatment of the venturi rod layer 31, the spraying layer 32 and the demisting device 33 in sequence, most dust particles in the flue gas are removed, and finally the flue gas is discharged into the atmosphere through the exhaust funnel 35 at the top of the wet dust removal tower 3;
the precipitation separation device 4 is used for separating and purifying sewage generated by washing and removing dust in the wet dust removal tower 3, and then sending the sewage to the wet dust removal tower 3 to be recycled as spray water.
The venturi rod layer 31 is composed of a plurality of steel rods distributed in parallel, and four layers of the venturi rod layer 31 are arranged in the wet dust removal tower 3 at intervals. The venturi rod layer 31 is arranged to greatly improve the flow rate of the flue gas when the flue gas passes through the venturi rod layer 31, and spray water is adhered to the surface of the venturi rod layer 31 due to the wall attachment effect of the water, so that when the flue gas is in contact with each other at a high speed, the original liquid level on the venturi rod layer 31 is peeled off to form a new gas-liquid contact surface, thereby accelerating the gas-liquid two-phase mass transfer rate, and in addition, a gas-liquid turbulent layer can be formed on the upper part of the venturi rod layer 31, and in the turbulent layer, the gas-liquid contact and the collision are violent, thereby greatly improving the absorption effect of the spray water on dust particles in the flue gas; venturi rod layer 31 can also improve the gas distribution state in wet dedusting tower 3, cuts apart the effect through the air current, can optimize the distribution of dusty flue gas on the whole cross section of wet dedusting tower 3, makes it fully contact with the shower water, improves flue gas washing dust collection efficiency.
The spray layer 32 consists of a spray water pipe 321 and a plurality of spiral nozzles 322, the spiral nozzles 322 are fixedly connected with the spray water pipe 321, and the plurality of spiral nozzles 322 are uniformly distributed in a ring shape along the radial direction in the wet dust removal tower 3; the spray water from the precipitation separation device 4 is distributed to each spiral nozzle 322 by the spray water pipe 321, is dispersed by the spiral nozzles 322 to form water mist which is sprayed from top to bottom, and is collided and contacted with the dust-containing gas flowing from bottom to top and fully mixed, so that dust particles in the flue gas are washed. The spiral nozzle is a typical impact type dispersion spraying part, no parts are arranged in the spiral nozzle, but a smooth channel is formed, the spiral nozzle is quite natural in design and has the characteristic of blockage resistance, and water flow is changed into tiny liquid beads to be sprayed out to form fog after being tangent to and collided with a continuously reduced spiral surface on the periphery of the spiral nozzle.
The defogging device 33 is composed of a plurality of layers of corrugated plate defoggers arranged from top to bottom at intervals, and each layer of corrugated plate defogger is arranged into a ridge structure. Set up defogging device 33's aim at, the flue gas is after washing dust removal, wherein can smuggle a large amount of tiny liquid drops secretly, and direct emission not only can lead to the water consumption of whole device big, also can increase exhaust emission moreover, consequently need carry out discharge to reach standard after the dewatering defogging to the flue gas through defogging device 33.
Each layer wave plate defroster of defogging device 33 all disposes a plurality of washing nozzles 331 for adopt the clear water to spray the washing to the wave plate defroster, prevent that the wave plate defroster from blockking up and leading to that the defogging effect is poor or air current resistance is big.
The air collecting pipe 2 is provided with an air blower 21 for sucking and conveying dust-containing waste gas, so that the flow speed of the dust-containing waste gas in the device is improved, and the dust removal efficiency is improved.
The precipitation separation device 4 comprises a precipitation tank 41, a liquid seal tank 42 and a clean water tank 43; an outlet of a drain pipe 36 arranged at the bottom of the wet dust removal tower 3 extends below the liquid level of a liquid seal tank 42, sewage generated by washing dust-containing waste gas is discharged into the liquid seal tank 42, the sewage flowing out of the liquid seal tank 42 enters a sedimentation tank 41 for sedimentation and separation, dust particles in the sewage are settled to the bottom of the sedimentation tank 41, and separated clean water overflows to a clean water tank 43; a circulating water pipe 431 is led out from the bottom of the clean water tank 43, and a circulating water pump 432 is further arranged on the circulating water pipe 431, so that the clean water is conveyed to the spraying layer 32 of the wet dust removal tower 3 to be recycled as spraying water, the water consumption is saved, and the operation cost is reduced.
A water replenishing tank 44 is arranged beside the precipitation separation device 4, a water inlet pipe 441 is arranged at the top of the water replenishing tank 44, a water replenishing pipe 442 communicated with the clean water tank 43 is arranged at the bottom of the water replenishing tank 44, and a water replenishing pump 443 is arranged on the water replenishing pipe 442; the bottom of the water replenishing tank 44 is also provided with a flushing water pipe 444 communicated with the flushing nozzle 331 of the demisting device 33, and the flushing water pipe 444 is provided with a flushing water pump 445, so that when the water quantity of the system is insufficient, a water source can be replenished in time, and the operation requirement of the device is met.
The sedimentation tank 41 is provided with a mud scraper 411, one side of the bottom of the sedimentation tank 41 is provided with a sunken mud collection pit 412, and the mud deposited at the bottom of the sedimentation tank 41 is scraped into the mud collection pit 412 by a scraping rake of the mud scraper 411 and then is sent to a subsequent sewage treatment working section for treatment in a centralized manner.
A drain pipe 433 is further led out from the bottom of the clean water tank 43, and a drain pump 434 is arranged on the drain pipe 433 and used for discharging sediments at the bottom of the clean water tank 43.
The stirrer 421 is provided in the liquid seal tank 42, and the dust particles in the sewage can be prevented from depositing in the liquid seal tank 42 by stirring.
In the drawings, the positional relationship is described for illustrative purposes only and is not to be construed as limiting the present patent; it is to be understood that the above-described embodiments of the present invention are merely examples provided for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. 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. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A wet flue gas dust removal device is characterized by comprising a gas collecting hood, a gas collecting pipe, a wet dust removal tower and a precipitation separation device which are connected through a pipeline;
the gas collecting hood is used for collecting dust-containing waste gas generated by a waste gas source and then sending the dust-containing waste gas to the wet dust removal tower through the gas collecting pipe for dust removal;
the wet dust removal tower is internally provided with a Venturi rod layer, a spraying layer and a demisting device from bottom to top respectively, the side part of the lower section of the wet dust removal tower is provided with an air inlet, the top of the wet dust removal tower is provided with an exhaust funnel, the bottom of the wet dust removal tower is provided with a drain pipe, dust-containing flue gas enters the wet dust removal tower from the air inlet, and is discharged through the exhaust funnel after being subjected to washing, dust removal and demisting treatment by the Venturi rod layer, the spraying layer and the demisting device in sequence;
and the precipitation separation device is used for separating and purifying the sewage generated by the wet dust removal tower and then sending the sewage to the wet dust removal tower to be used as spray water for recycling.
2. The wet flue gas dust removal device of claim 1, wherein the venturi rod layer is composed of a plurality of steel rods distributed in parallel, and a plurality of layers are arranged at intervals on the wet dust removal tower.
3. The wet flue gas dust removal device according to claim 2, wherein the spray layer is composed of a spray header and a plurality of spiral nozzles, and the spiral nozzles are uniformly distributed in the wet dust removal tower in a radial direction and in an annular shape;
and the spray water from the precipitation separation device is distributed to each spiral nozzle by the spray water pipe and is dispersed by the spiral nozzle to form water mist which is sprayed downwards.
4. The wet flue gas dust removal device of claim 3, wherein the demisting device is composed of multiple layers of corrugated plate demisters arranged at intervals from top to bottom, and each layer of corrugated plate demisters are arranged in a ridge structure.
5. The wet flue gas dust removal device of claim 4, wherein each layer of the corrugated plate mist eliminator of the mist elimination device is provided with a plurality of washing nozzles for cleaning the corrugated plate mist eliminator by using clean water.
6. The wet flue gas dust removal device of claim 5, wherein a water replenishing tank is arranged beside the precipitation separation device, a water inlet pipe is arranged at the top of the water replenishing tank, a water replenishing pipe communicated with the precipitation separation device is arranged at the bottom of the water replenishing tank, and a water replenishing pump is arranged on the water replenishing pipe;
and a flushing water pipe communicated with a flushing nozzle of the demisting device is also arranged at the bottom of the water replenishing tank, and a flushing water pump is arranged on the flushing water pipe.
7. The wet flue gas dedusting apparatus as claimed in claim 6, wherein a blower is disposed on the gas collecting pipe for sucking and conveying the dust-containing waste gas.
8. The wet flue gas dust removal device of any one of claims 1 to 7, wherein the precipitation separation device comprises a precipitation tank, a liquid seal tank and a clean water tank;
a drain pipe outlet arranged at the bottom of the wet dust removal tower extends below the liquid level of the liquid seal tank, sewage generated by washing dust-containing waste gas is discharged into the liquid seal tank, the sewage flowing out of the liquid seal tank enters the sedimentation tank again for sedimentation and separation, dust particles in the sewage are settled to the bottom of the sedimentation tank, and separated clean water overflows to the clean water tank;
and a circulating water pipe is led out from the bottom of the clean water tank and used for conveying clean water to the spraying layer of the wet dust removal tower for cyclic utilization, and a circulating water pump is further arranged on the circulating water pipe.
9. The wet flue gas dust removal device of claim 8, wherein a mud scraper is installed on the sedimentation tank, a sinking type mud collection pit is arranged at the bottom of the sedimentation tank, and a scraper of the mud scraper scrapes the mud deposited at the bottom of the sedimentation tank into the mud collection pit and intensively conveys the mud to a subsequent working section for treatment.
10. The wet flue gas dust removal device of claim 9, wherein a stirrer is arranged in the liquid seal tank.
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| CN202022740491.7U CN214597986U (en) | 2020-11-24 | 2020-11-24 | Wet flue gas dust removal device |
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| CN202022740491.7U CN214597986U (en) | 2020-11-24 | 2020-11-24 | Wet flue gas dust removal device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114377498A (en) * | 2022-01-10 | 2022-04-22 | 中建材创新科技研究院有限公司 | Flue gas dust removal purification device and flue gas dust removal purification system |
| CN115350548A (en) * | 2022-08-25 | 2022-11-18 | 广东兴荣环保科技有限公司 | Dust removal and odor removal device for dust-containing waste gas and treatment method |
-
2020
- 2020-11-24 CN CN202022740491.7U patent/CN214597986U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114377498A (en) * | 2022-01-10 | 2022-04-22 | 中建材创新科技研究院有限公司 | Flue gas dust removal purification device and flue gas dust removal purification system |
| CN115350548A (en) * | 2022-08-25 | 2022-11-18 | 广东兴荣环保科技有限公司 | Dust removal and odor removal device for dust-containing waste gas and treatment method |
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