CN216770215U - Device is administered in well borosilicate medicinal glass kiln waste gas environmental protection - Google Patents
Device is administered in well borosilicate medicinal glass kiln waste gas environmental protection Download PDFInfo
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- CN216770215U CN216770215U CN202121546679.6U CN202121546679U CN216770215U CN 216770215 U CN216770215 U CN 216770215U CN 202121546679 U CN202121546679 U CN 202121546679U CN 216770215 U CN216770215 U CN 216770215U
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Abstract
The utility model discloses an environment-friendly treatment device for waste gas of a medium-high borosilicate medical glass kiln, which comprises a high-temperature gas-gas heat exchanger, a wind mixing box, a boron and acid removing tower, a dust removal filter, an SCR (selective catalytic reduction) denitration tower and a low-temperature gas-gas heat exchanger which are sequentially communicated through a pipeline along the conveying direction of the smoke gas of the glass kiln. The low-temperature gas-gas heat exchanger and the high-temperature gas-gas heat exchanger are respectively used for exchanging the heat energy of the high-temperature waste gas into the combustion-supporting gas, so that the energy of the high-temperature waste gas is well utilized, and meanwhile, when the waste gas is treated, the problem of viscosity of boron oxide of equipment in the waste removing process is solved by cooling crystallization and using circulating fluidized ash in the boric acid removing air purifying agent, and the waste removing cost is further reduced; further, water for a boiler is heated into steam by utilizing heat energy in the flue gas of the glass kiln, so that the heat energy in the flue gas is fully recovered, the increment of waste gas is reduced to the maximum extent, and the construction cost and the operation cost of an environment-friendly system are effectively reduced.
Description
Technical Field
The utility model relates to the technical field of glass production, in particular to an environment-friendly treatment device for waste gas of a medium-high borosilicate medical glass kiln.
Background
At present, the medium and high borosilicate medicinal glass becomes an important development direction of a medicine packaging material with excellent performance and higher medicine compatibility, a large amount of viscous boron oxide is contained in smoke of a medium and high borosilicate medicinal glass kiln, and the boron oxide can be combined with water to produce boric acid after being discharged into the atmosphere, so that acid rain is formed, and therefore, how to treat the smoke of the glass kiln is also an important process for environmental protection treatment.
Because the content of boron oxide in the waste gas of the medium-high borosilicate medical glass kiln is high, and the boron oxide has high viscosity, when conventional environment-friendly equipment is adopted for purification in the production process, the efficiency of the conventional environment-friendly equipment is easily low, and even the conventional environment-friendly equipment is ineffective. In order to solve the problem of high viscosity of boron oxide, the existing environment-friendly system for waste gas of medium-high borosilicate pharmaceutical glass kilns is very complex in equipment, and a large amount of cold air is added, so that energy waste is very serious.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an environment-friendly treatment device for waste gas of a medium-high borosilicate medical glass kiln, which can be used for finishing environment-friendly treatment of the waste gas of the medium-high borosilicate medical glass kiln with high efficiency and low cost.
The technical scheme adopted by the utility model is as follows:
an environment-friendly treatment device for waste gas of a medium-high borosilicate medical glass kiln comprises a high-temperature gas-gas heat exchanger 2, an air mixing box 4, a boron and acid removing tower 8, a dust removal filter 12, an SCR denitration tower 14 and a low-temperature gas-gas heat exchanger 16 which are sequentially communicated through pipelines along the conveying direction of flue gas of the glass kiln, wherein the air inlet of a first path of exchange channel of the high-temperature gas-gas heat exchanger 2 is connected with a waste gas outlet of the glass kiln, the air outlet of the first path of exchange channel of the high-temperature gas-gas heat exchanger 2 is connected with the first air inlet of the air mixing box, the second air inlet of the air mixing box is connected with the atmosphere through an air blower, the air outlet of the air mixing box is connected with the air inlet of the boron and acid removing tower 8, the air outlet of the boron and acid removing tower 8 is connected with the air inlet of the dust removal filter, the air outlet of the dust removal filter is connected with the air inlet of the SCR denitration tower 14, and the air outlet of the SCR denitration tower 14 is communicated with the atmosphere through the first path of the low-temperature gas-gas heat exchanger 16, the air inlet of the second path of exchange channel of the low-temperature gas-gas heat exchanger 16 is connected with a low-temperature combustion-supporting gas source, the air outlet of the second path of exchange channel of the low-temperature gas-gas heat exchanger 16 is connected with the air inlet of the second path of exchange channel of the high-temperature gas-gas heat exchanger 2, and the air outlet of the second path of exchange channel of the high-temperature gas-gas heat exchanger 2 is connected with the air inlet of the kiln combustion system.
The system also comprises a temperature regulator, wherein the temperature regulator is arranged on a pipeline communicated with an air outlet of the second path of exchange channel of the low-temperature gas-gas heat exchanger 16 and an air inlet of the second path of exchange channel of the high-temperature gas-gas heat exchanger 2.
The boron and acid removing tower 8 is provided with a boron and acid removing air purifying agent which is hydrated lime or quicklime with process water or circulating fluidized ash.
The circulating fluidized ash consists of dust containing hydrated lime removed from the dust removal filter 12 and supplementary hydrated lime.
The dust removal filter adopts a high-temperature-resistant metal film filter or a ceramic tube filter and is used for filtering solid particles, calcium borate, calcium sulfate, calcium fluoride and other neutral salt particles in waste gas.
The system also comprises an induced draft fan, wherein the induced draft fan is arranged at the air outlet end of the first path of exchange channel of the low-temperature gas-gas heat exchanger 16 and is used for overcoming the wind resistance of each device and each air channel of the system.
And the temperature regulator 23 is used for regulating the temperature of the glass kiln flue gas discharged by the high-temperature gas-gas heat exchanger 2 and ensuring that the temperature of the glass kiln flue gas is higher than the crystallization temperature of the boron oxide.
The device also comprises a cooling fan 5, wherein the cooling fan is used for sending normal-temperature air into the air mixing box 4, reducing the waste gas entering the air mixing box 4 to about 400 ℃, and crystallizing boron oxide from a gaseous state to a solid state.
The high-temperature gas-gas heat exchanger 2 and the low-temperature gas-gas heat exchanger 16 respectively adopt a high-temperature waste heat boiler and a low-temperature waste heat boiler, and are used for heating water in the boilers into water vapor by utilizing heat energy in the flue gas of the glass kiln, so that the heat energy in the flue gas is fully recovered.
The air exhaust device further comprises an exhaust funnel 20, and the exhaust funnel is arranged at an air outlet of the induced draft fan.
The utility model is provided with the low-temperature gas-gas heat exchanger and the high-temperature gas-gas heat exchanger which are respectively used for exchanging the heat energy of the high-temperature waste gas into the combustion-supporting gas, thereby being capable of well utilizing the energy of the high-temperature waste gas, simultaneously, when the waste gas is treated, not only avoiding the viscosity problem of the boron oxide of the equipment in the waste removing process by cooling crystallization and using the circulating fluidized ash in the boric acid removing air purifying agent, and the cost of removing waste is further reduced, the whole structure is simple, the effect is good, the high-temperature gas-gas heat exchanger and the low-temperature gas-gas heat exchanger are replaced by a high-temperature waste heat boiler and a low-temperature waste heat boiler, the water used by the boiler is heated into water vapor by utilizing the heat energy in the smoke of the glass kiln, the heat energy in the smoke is fully recovered, the energy conservation is realized, the increment of waste gas is reduced to the maximum extent, and the construction cost and the operation cost of the environmental protection system are effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in figure 1, the utility model comprises a high-temperature gas-gas heat exchanger 2, an air mixing box 4, a boron-removing acid-removing tower 8, a dust-removing filter 12, an SCR denitration tower 14 and a low-temperature gas-gas heat exchanger 16 which are sequentially communicated through a pipeline along the conveying direction of flue gas of a glass kiln, wherein the air inlet of a first path of exchange channel of the high-temperature gas-gas heat exchanger 2 is connected with a waste gas outlet of the glass kiln, the air outlet of the first path of exchange channel of the high-temperature gas-gas heat exchanger 2 is connected with the first air inlet of the air mixing box, the second air inlet of the air mixing box is connected with the atmosphere through an air blower, the air outlet of the air mixing box is connected with the air inlet of the boron-removing acid-removing tower 8, the air outlet of the boron-removing acid-removing tower 8 is connected with the air inlet of the dust-removing filter, the air outlet of the dust-removing filter is connected with the air inlet of the SCR denitration tower 14, and the air outlet of the SCR denitration tower 14 is directly communicated with the atmosphere through the first path of the low-temperature gas-gas heat exchanger 16, the air inlet of the second path of exchange channel of the low-temperature gas-gas heat exchanger 16 is connected with a low-temperature combustion-supporting gas source, the air outlet of the second path of exchange channel of the low-temperature gas-gas heat exchanger 16 is connected with the air inlet of the second path of exchange channel of the high-temperature gas-gas heat exchanger 2, and the air outlet of the second path of exchange channel of the high-temperature gas-gas heat exchanger 2 is connected with the air inlet of the kiln combustion system.
According to the utility model, the low-temperature gas-gas heat exchanger 16 and the high-temperature gas-gas heat exchanger 2 are respectively used for exchanging the heat energy of the high-temperature waste gas into the combustion-supporting gas, so that the energy of the high-temperature waste gas can be well utilized, and meanwhile, during waste gas treatment, the problem of the viscosity of boron oxide in the waste removing process is avoided through cooling crystallization and the use of circulating fluidized ash in the boric acid removing air purifying agent, the waste removing cost is further reduced, the integral structure is simple, and the effect is good.
The system also comprises a temperature regulator, wherein the temperature regulator is arranged on a pipeline communicated with an air outlet of the second path of exchange channel of the low-temperature gas-gas heat exchanger 16 and an air inlet of the second path of exchange channel of the high-temperature gas-gas heat exchanger 2. The temperature regulator 23 is used for regulating the temperature of the glass kiln flue gas discharged by the high-temperature gas-gas heat exchanger 2, and ensuring that the temperature is about 500 ℃ and the temperature is 450 ℃ for crystallization and bonding. In operation, the temperature regulator 23 controls the temperature of the glass kiln flue gas entering the air mixing box 4 to be about 500 ℃. The inlet air of the temperature regulator 23 is combustion-supporting gas for heating the glass kiln which is heated by the low-temperature gas-gas heat exchanger 16, and the outlet air is used for heating the glass kiln after passing through the high-temperature gas-gas heat exchanger 2. The purpose of the thermostat 23 is to regulate the temperature of the glass kiln flue gas discharged from the high temperature gas-gas heat exchanger 2.
The boron and acid removing tower 8 is provided with a boron and acid removing air purifying agent which is hydrated lime or quicklime with process water or circulating fluidized ash. The circulating fluidized ash consists of dust containing hydrated lime and supplemented hydrated lime which are removed from the dust removal filter 12, so that the content of the hydrated lime in the fluidized ash is ensured, and the boron and acid removal effects are ensured.
The dust removal filter 12 is a high temperature resistant metal film filter or a ceramic tube filter, and is used for filtering solid particles, calcium borate, calcium sulfate, calcium fluoride and other neutral salt particles in the exhaust gas, so as to achieve the purpose of dust removal. The exhaust gas from which the particulate matter is removed is sent to the denitration tower 14 through an air pipe. This application makes glass kiln flue gas temperature can gradually lower the temperature through adopting high temperature resistant metal film filter or ceramic pipe filter for the filter element of dust removal filter, has avoided the big of flue gas temperature to rise greatly and has fallen, furthest's reduction flue gas increment.
The system also comprises an induced draft fan, wherein the induced draft fan is arranged at the air outlet end of the first path of exchange channel of the low-temperature gas-gas heat exchanger 16 and is used for overcoming the wind resistance of each device and each air channel of the system.
The device also comprises a cooling fan 5, wherein the cooling fan is used for sending normal-temperature air into the air mixing box 4, so that waste gas entering the air mixing box 4 is reduced to about 400 ℃, and boron oxide is crystallized from a gaseous state to a solid state to prepare for the next chemical reaction.
The high-temperature gas-gas heat exchanger 2 and the low-temperature gas-gas heat exchanger 16 can be correspondingly replaced by a high-temperature waste heat boiler and a low-temperature waste heat boiler, and are used for heating water in the boilers into water vapor by utilizing heat energy in the flue gas of the glass kiln, fully recovering the heat energy in the flue gas, realizing energy conservation and reducing the increment of the waste gas to the maximum extent.
The device also comprises an exhaust funnel 20 which is arranged at an air outlet of the induced draft fan and used for discharging clean gas into the atmosphere.
Specifically, the specific working process is exemplified, and in practical work, the high-temperature gas-gas heat exchanger 2 provided by the utility model has two paths of inlet gas, wherein one path of inlet gas is high-temperature flue gas 1 coming from a glass kiln, and the temperature of the flue gas is about 1000 ℃. The other path of inlet air is relatively low-temperature combustion-supporting gas sent by a blast pipe and sent by a temperature regulator 23. The glass kiln flue gas forms outlet waste gas at about 500 ℃ after passing through the high-temperature gas-gas heat exchanger, and the outlet waste gas is sent to the air mixing box 4 through an air pipe. The relatively low-temperature combustion-supporting gas is heated by the high-temperature gas-gas heat exchanger 2 and then sent to the kiln combustion system 25.
The air mixing box 4 is provided with two paths of inlet air, one path is waste gas with the temperature of about 500 ℃ coming out from the high-temperature air-gas heat exchanger 2, the other path is normal-temperature air blown in by the blower 5 through the air pipe 6, the two paths of air are mixed in the air mixing box 4 to form waste gas with the temperature of about 400 ℃, and the waste gas is sent to the boric acid removal tower 8 through the air pipe 7. The crystallization temperature of boron oxide was 450 c, at which time the temperature dropped to 400 c, and the boron oxide crystallized as a waxy solid suspended in the exhaust gas.
The boron and acid removing tower 8 receives the waste gas with the temperature of about 400 ℃ from the air mixing box 4 through an air pipe, and simultaneously, the hydrated lime 10 added with the process water 9 is sent into the boron and acid removing tower 8. In the boric acid removing tower 8, boric oxide firstly reacts with process water 9 to generate boric acid, and then the boric acid reacts with slaked lime 10 to generate calcium borate neutral salt particles. Meanwhile, acidic substances such as sulfide and fluoride contained in the exhaust gas also react with the hydrated lime 10 to produce neutral salt particles such as calcium sulfate and calcium fluoride. These particles are suspended in the exhaust gas. The waste gas passing through the boron and acid removing tower 8 is sent to a dust removing filter 12 through an air pipe 11.
The SCR denitration tower 14 is internally provided with a denitration catalyst, and nitrogen oxides in the glass kiln waste gas are decomposed into nitrogen and water through chemical reaction with ammonia water and oxygen when passing through the denitration catalyst, so that denitration environmental protection treatment is realized. At this time, the exhaust gas discharged from the glass kiln becomes clean gas having a temperature of about 340 ℃.
The low-temperature gas-gas heat exchanger 16 has two paths of inlet gas, wherein one path of inlet gas is clean gas which is processed at the temperature of about 340 ℃ and is sent from the SCR denitration tower 14 through an air pipe, and the other path of inlet gas is normal-temperature combustion-supporting gas 21. The combustion-supporting gas exchanges heat with the clean gas at about 340 ℃ in the low-temperature gas-gas heat exchanger 16 to raise the temperature, and the combustion-supporting gas is sent into the temperature regulator 23 through the air pipe. Other materials discharged from the glass kiln through the low-temperature gas-gas heat exchanger 16 enter the induced draft fan 18 through an air pipe, and are discharged into the atmosphere through the air pipe by the exhaust funnel 20, so that the purification treatment of waste gas can be realized.
The device has the advantages of scientific and reasonable structure, convenient installation, low operation cost, high reliability and long service life, efficiently treats the waste gas of the medium-high borosilicate medical glass kiln, meets the environmental emission standard, avoids environmental pollution, and improves the social benefit and social image of enterprises.
The utility model greatly reduces the air supply at normal temperature, reduces the requirements of the system on the volume and the power of the equipment, and greatly reduces the construction cost and the operation cost of the system.
The utility model adopts a chemical method combined structure and temperature design to remove all acidic substances such as boron oxide and the like in the flue gas, adopts a chemical method to remove oxysulfide and nitric oxide in the waste gas, adopts a filtering device with a bag type dust collector structure to remove particles in the waste gas, and adopts a gas-gas heat exchanger to fully recycle the heat energy in the flue gas of the glass kiln. The utility model has good treatment effect on the boron-containing waste gas, has strong pertinence and can be popularized and used.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, change and equivalent changes of the above embodiments according to the technical essence of the present invention are still within the protection scope of the technical solution of the present invention.
In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, but does 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 without limiting the specific scope of protection of the present invention.
It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the application herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the application of the principles of the technology. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the specific embodiments described herein, and may include more effective embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (9)
1. The device for environment-friendly treatment of waste gas of the medium-high borosilicate medical glass kiln is characterized by comprising a high-temperature gas-gas heat exchanger (2), a gas mixing box (4), a boron and acid removing tower (8), a dust removal filter (12), an SCR denitration tower (14) and a low-temperature gas-gas heat exchanger (16) which are sequentially communicated through a pipeline along the conveying direction of flue gas of the glass kiln, wherein the gas inlet of a first path of exchange channel of the high-temperature gas-gas heat exchanger (2) is connected with a waste gas outlet of the glass kiln, the gas outlet of the first path of exchange channel of the high-temperature gas-gas heat exchanger (2) is connected with the first gas inlet of the gas mixing box, the second gas inlet of the gas mixing box is connected with the atmosphere through a blower, the gas outlet of the gas mixing box is connected with the gas inlet of the boron and acid removing tower (8), the gas outlet of the boron and acid removing tower (8) is connected with the gas inlet of the dust removal filter, and the gas outlet of the dust removal filter is connected with the gas inlet of the SCR denitration tower (14), the air outlet of the SCR denitration tower (14) is communicated with the atmosphere through a first path of exchange channel of the low-temperature gas-gas heat exchanger (16), the air inlet of a second path of exchange channel of the low-temperature gas-gas heat exchanger (16) is connected with a low-temperature combustion-supporting gas source, the air outlet of the second path of exchange channel of the low-temperature gas-gas heat exchanger (16) is connected with the air inlet of a second path of exchange channel of the high-temperature gas-gas heat exchanger (2), and the air outlet of the second path of exchange channel of the high-temperature gas-gas heat exchanger (2) is connected with the air inlet of a kiln combustion system.
2. The medium and high borosilicate medicinal glass kiln waste gas environment-friendly treatment device as claimed in claim 1, wherein: the device also comprises a temperature regulator, wherein the temperature regulator is arranged on a pipeline communicated with an air outlet of the second path of exchange channel of the low-temperature gas-gas heat exchanger (16) and an air inlet of the second path of exchange channel of the high-temperature gas-gas heat exchanger (2).
3. The medium and high borosilicate medicinal glass kiln waste gas environment-friendly treatment device as claimed in claim 1, wherein: the boron and acid removing tower (8) is provided with a boron and acid removing air purifying agent.
4. The medium and high borosilicate medicinal glass kiln waste gas environment-friendly treatment device as claimed in claim 1, wherein: the dust removal filter adopts a high-temperature resistant metal film filter or a ceramic tube filter.
5. The medium and high borosilicate medicinal glass kiln waste gas environment-friendly treatment device as claimed in claim 1, wherein: the system also comprises an induced draft fan, wherein the induced draft fan is arranged at the air outlet end of the first path of exchange channel of the low-temperature gas-gas heat exchanger (16) and is used for overcoming the wind resistance of each device and each air channel of the system.
6. The medium and high borosilicate glass kiln waste gas environment-friendly treatment device as claimed in claim 2, wherein: and the temperature regulator (23) is used for regulating the temperature of the glass kiln flue gas discharged by the high-temperature gas-gas heat exchanger (2) and ensuring that the temperature is higher than the crystallization temperature of the boron oxide.
7. The medium and high borosilicate medicinal glass kiln waste gas environment-friendly treatment device as claimed in claim 1, wherein: the device is characterized by further comprising a cooling fan (5), wherein the cooling fan is used for sending normal-temperature air into the air mixing box (4), so that waste gas entering the air mixing box (4) is reduced to 400 ℃, and boron oxide is crystallized from a gaseous state to a solid state.
8. The medium-high borosilicate pharmaceutical glass kiln waste gas environment-friendly treatment device as claimed in any one of claims 1 to 7, wherein: the high-temperature gas-gas heat exchanger (2) and the low-temperature gas-gas heat exchanger (16) respectively adopt a high-temperature waste heat boiler and a low-temperature waste heat boiler, and are used for heating water in the boilers into water vapor by utilizing the heat energy in the flue gas of the glass kiln, so that the heat energy in the flue gas is fully recovered.
9. The medium and high borosilicate glass kiln waste gas environment-friendly treatment device as claimed in claim 8, wherein: the air exhaust device also comprises an exhaust funnel (20) which is arranged at an air outlet of the induced draft fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121546679.6U CN216770215U (en) | 2021-07-08 | 2021-07-08 | Device is administered in well borosilicate medicinal glass kiln waste gas environmental protection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121546679.6U CN216770215U (en) | 2021-07-08 | 2021-07-08 | Device is administered in well borosilicate medicinal glass kiln waste gas environmental protection |
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| CN216770215U true CN216770215U (en) | 2022-06-17 |
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| CN202121546679.6U Active CN216770215U (en) | 2021-07-08 | 2021-07-08 | Device is administered in well borosilicate medicinal glass kiln waste gas environmental protection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116576682A (en) * | 2023-05-15 | 2023-08-11 | 广东维正环保机电工程有限公司 | Energy-saving comprehensive treatment system and process for exhaust gas discharged from toughened glass production |
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2021
- 2021-07-08 CN CN202121546679.6U patent/CN216770215U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116576682A (en) * | 2023-05-15 | 2023-08-11 | 广东维正环保机电工程有限公司 | Energy-saving comprehensive treatment system and process for exhaust gas discharged from toughened glass production |
| CN116576682B (en) * | 2023-05-15 | 2024-02-02 | 广东维正环保机电工程有限公司 | Energy-saving comprehensive treatment system and process for exhaust gas discharged from toughened glass production |
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