CN114832602A - Float glass production equipment, sulfur dioxide waste gas treatment device and treatment method - Google Patents
Float glass production equipment, sulfur dioxide waste gas treatment device and treatment method Download PDFInfo
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- CN114832602A CN114832602A CN202210395192.5A CN202210395192A CN114832602A CN 114832602 A CN114832602 A CN 114832602A CN 202210395192 A CN202210395192 A CN 202210395192A CN 114832602 A CN114832602 A CN 114832602A
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- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 title claims abstract description 590
- 239000002912 waste gas Substances 0.000 title claims abstract description 134
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 43
- 239000005329 float glass Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 275
- 230000003993 interaction Effects 0.000 claims abstract description 114
- 230000002441 reversible effect Effects 0.000 claims abstract description 9
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 20
- 239000007789 gas Substances 0.000 claims description 18
- 238000000137 annealing Methods 0.000 claims description 14
- 239000002893 slag Substances 0.000 claims description 14
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 8
- 239000011152 fibreglass Substances 0.000 claims description 5
- 238000006124 Pilkington process Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 18
- 235000010269 sulphur dioxide Nutrition 0.000 description 235
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 32
- 235000010265 sodium sulphite Nutrition 0.000 description 16
- 239000000243 solution Substances 0.000 description 13
- 239000004291 sulphur dioxide Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000002829 reductive effect Effects 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000011734 sodium Substances 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to float glass production equipment, a sulfur dioxide waste gas treatment device and a treatment method. The treatment device comprises a liquid storage tank, a gas-liquid interaction tower, a sulfur dioxide waste gas conveying pipeline and a sulfur dioxide treatment liquid pipeline. The liquid storage tank is used for storing sulfur dioxide treatment liquid, one end of the sulfur dioxide treatment liquid pipeline is connected to the liquid storage tank, and the other end of the sulfur dioxide treatment liquid pipeline is connected to the gas-liquid interaction tower and used for introducing the treatment liquid into the gas-liquid interaction tower. One end of the sulfur dioxide waste gas conveying pipeline is used for collecting sulfur dioxide waste gas, and the other end of the sulfur dioxide waste gas conveying pipeline is connected to the gas-liquid interaction tower so as to introduce the sulfur dioxide waste gas into the gas-liquid interaction tower. The connecting position of the sulfur dioxide waste gas conveying pipeline and the gas-liquid interaction tower is closer to the bottom of the gas-liquid interaction tower than the connecting position of the sulfur dioxide treatment liquid pipeline and the gas-liquid interaction tower. When using this processing apparatus, can realize the effective getting rid of sulfur dioxide waste gas through the reverse interaction between sulfur dioxide waste gas and the sulfur dioxide treatment fluid.
Description
Technical Field
The invention relates to the field of sulfur dioxide waste gas treatment, in particular to float glass production equipment, a sulfur dioxide waste gas treatment device and a treatment method.
Background
In the production process of float glass, sulfur dioxide gas is generally needed to be sprayed on the lower surfaces of glass in a slag box and an annealing kiln, at the moment, partial alkali metal on the surface of the glass is oxidized and neutralized with sulfur dioxide to form a sodium sulfate protective film, and the defect of the glass generated by friction force in roller way conveying can be effectively reduced. However, the sulfur dioxide introduced into the slag box and the annealing furnace can not completely react with the glass, and a part of sulfur dioxide waste gas is generated to cause pollution.
Disclosure of Invention
Based on this, it is necessary to provide a treatment apparatus and a treatment method capable of effectively removing sulfur dioxide waste gas in float glass production, and float glass production equipment.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a treatment device for sulfur dioxide waste gas in float glass production comprises a liquid storage tank, a gas-liquid interaction tower, a sulfur dioxide waste gas conveying pipeline and a sulfur dioxide treatment liquid pipeline;
the liquid storage tank is used for storing sulfur dioxide treatment liquid, one end of the sulfur dioxide treatment liquid pipeline is connected to the liquid storage tank, and the other end of the sulfur dioxide treatment liquid pipeline is connected to the gas-liquid interaction tower and used for introducing the sulfur dioxide treatment liquid into the gas-liquid interaction tower;
one end of the sulfur dioxide waste gas conveying pipeline is used for collecting sulfur dioxide waste gas, and the other end of the sulfur dioxide waste gas conveying pipeline is connected to the gas-liquid interaction tower and used for introducing the sulfur dioxide waste gas into the gas-liquid interaction tower;
the connection position of the sulfur dioxide waste gas conveying pipeline and the gas-liquid interaction tower is closer to the bottom of the gas-liquid interaction tower than the connection position of the sulfur dioxide treatment liquid pipeline and the gas-liquid interaction tower, so that sulfur dioxide waste gas moves from bottom to top in the gas-liquid interaction tower, sulfur dioxide treatment liquid moves from top to bottom in the gas-liquid interaction tower, and then the sulfur dioxide waste gas and the sulfur dioxide treatment liquid are in reverse interaction in the gas-liquid interaction tower.
In one embodiment, the liquid storage tank is connected to the bottom of the gas-liquid interaction tower and is communicated with the gas-liquid interaction tower so as to recover the sulfur dioxide treatment liquid after the sulfur dioxide waste gas and the sulfur dioxide treatment liquid reversely interact.
In one embodiment, the sulfur dioxide waste gas conveying pipeline is connected with the gas-liquid interaction tower at a position closer to the top of the gas-liquid interaction tower than the liquid storage tank.
In one embodiment, the treatment device further comprises a screen separator arranged in the gas-liquid interaction tower for separating the sulfur dioxide treatment liquid into a plurality of droplets.
In one embodiment, the sieve separator is provided in a plurality, and the sieve separators are distributed at different heights in the gas-liquid interaction tower.
In one embodiment, the gas-liquid interaction tower is made of glass fiber reinforced plastics.
The float glass production equipment comprises a slag box, an annealing kiln and the treatment device in any one of the embodiments, wherein one end of the sulfur dioxide waste gas conveying pipeline is connected between the slag box and the annealing kiln so as to be used for collecting sulfur dioxide waste gas.
A method for treating sulfur dioxide waste gas in float glass production by using the treatment device in any one of the above embodiments comprises the following steps:
adding sulfur dioxide treatment liquid into the liquid storage tank, and introducing the sulfur dioxide treatment liquid into the gas-liquid interaction tower through the sulfur dioxide treatment liquid pipeline;
introducing sulfur dioxide waste gas into the gas-liquid interaction tower through the sulfur dioxide waste gas conveying pipeline;
and the sulfur dioxide waste gas and the sulfur dioxide treatment liquid are subjected to reverse interaction in the gas-liquid interaction tower.
In one embodiment, the sulfur dioxide treatment fluid comprises a sodium carbonate solution.
In one embodiment, before the sulfur dioxide waste gas is introduced into the gas-liquid interaction tower through the sulfur dioxide waste gas conveying pipeline, the method further comprises the following steps:
and connecting one end of the sulfur dioxide waste gas conveying pipeline, which is far away from the gas-liquid interaction tower, between a slag box and an annealing kiln for float glass production so as to collect sulfur dioxide which does not react with glass.
The device for treating the sulfur dioxide waste gas in the float glass production comprises a liquid storage tank, a gas-liquid interaction tower, a sulfur dioxide waste gas conveying pipeline and a sulfur dioxide treatment liquid pipeline. The liquid storage tank is used for storing sulfur dioxide treatment liquid, one end of the sulfur dioxide treatment liquid pipeline is connected to the liquid storage tank, and the other end of the sulfur dioxide treatment liquid pipeline is connected to the gas-liquid interaction tower and used for introducing the treatment liquid into the gas-liquid interaction tower. One end of the sulfur dioxide waste gas conveying pipeline is used for collecting sulfur dioxide waste gas, and the other end of the sulfur dioxide waste gas conveying pipeline is connected to the gas-liquid interaction tower so as to introduce the sulfur dioxide waste gas into the gas-liquid interaction tower. The connecting position of the sulfur dioxide waste gas conveying pipeline and the gas-liquid interaction tower is closer to the bottom of the gas-liquid interaction tower than the connecting position of the sulfur dioxide treatment liquid pipeline and the gas-liquid interaction tower, so that the sulfur dioxide waste gas moves from bottom to top in the gas-liquid interaction tower, the sulfur dioxide treatment liquid moves from top to bottom in the gas-liquid interaction tower, and then the sulfur dioxide waste gas and the sulfur dioxide treatment liquid are reversely interacted in the gas-liquid interaction tower. When using this processing apparatus, can make full contact between sulfur dioxide waste gas and the sulfur dioxide treatment liquid through the reverse interaction between sulfur dioxide waste gas and the sulfur dioxide treatment liquid, realize effectively getting rid of sulfur dioxide waste gas.
Further, when removing sulfur dioxide waste gas in float glass production, the treatment liquid comprising sodium carbonate solution can further improve the treatment efficiency of the sulfur dioxide waste gas. Meanwhile, when sulfur dioxide waste gas is removed, the generated sodium sulfite can be reused by industrial raw materials.
Drawings
FIG. 1 is a schematic view showing the structure of a device for treating waste gas of sulfur dioxide in the production of float glass according to an embodiment of the present invention;
FIG. 2 is a detail view at A of FIG. 1;
fig. 3 is a schematic view of the structure of the corresponding screen dispenser of fig. 2.
The notation in the figure is:
100. a device for treating sulfur dioxide waste gas in float glass production; 101. a liquid storage tank; 1011. a sulfur dioxide treatment fluid replenishing hole; 1012. liquid level upper limit scales; 1013. liquid level lower limit scales; 1014. water replenishing holes; 1015. a drain hole; 102. a gas-liquid interaction tower; 103. a sulfur dioxide waste gas conveying pipeline; 1031. a fan; 1032. a flow meter; 1033. a sulfur dioxide waste gas collection hood; 104. a sulfur dioxide treatment fluid pipeline; 1041. a circulation pump; 105. a screen separator; 106. a sulfur dioxide concentration detector; 107. a sulfur dioxide treatment liquid concentration detector; 108. a liquid level detector; 200. a slag box; 300. an annealing kiln; 400. a roller way.
Detailed Description
The present invention will be described in detail with reference to the following embodiments in order to make the aforementioned objects, features and advantages of the invention more comprehensible. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 3, an embodiment of the present invention provides a device 100 for treating sulfur dioxide waste gas in float glass production. The treatment device comprises a liquid storage tank 101, a gas-liquid interaction tower 102, a sulfur dioxide waste gas conveying pipeline 103 and a sulfur dioxide treatment liquid pipeline 104. The liquid storage tank 101 is used for storing sulfur dioxide treatment liquid, and one end of the sulfur dioxide treatment liquid pipeline 104 is connected to the liquid storage tank 101, and the other end is connected to the gas-liquid interaction tower 102 so as to introduce the sulfur dioxide treatment liquid into the gas-liquid interaction tower 102. One end of the sulfur dioxide waste gas conveying pipeline 103 is used for collecting sulfur dioxide waste gas, and the other end of the sulfur dioxide waste gas conveying pipeline is connected to the gas-liquid interaction tower 102 and used for introducing the sulfur dioxide waste gas into the gas-liquid interaction tower 102. The connection position of the sulfur dioxide waste gas conveying pipeline 103 and the gas-liquid interaction tower 102 is closer to the bottom of the gas-liquid interaction tower 102 than the connection position of the sulfur dioxide treatment liquid pipeline 104 and the gas-liquid interaction tower 102, so that the sulfur dioxide waste gas moves from bottom to top in the gas-liquid interaction tower 102, the sulfur dioxide treatment liquid moves from top to bottom in the gas-liquid interaction tower 102, and then the sulfur dioxide waste gas and the sulfur dioxide treatment liquid are reversely interacted in the gas-liquid interaction tower 102. When using processing apparatus in this embodiment, can be through the reverse interaction between sulfur dioxide waste gas and the sulfur dioxide treatment liquid, make fully contact between sulfur dioxide waste gas and the sulfur dioxide treatment liquid, realize effectively getting rid of sulfur dioxide waste gas.
It will be appreciated that in fig. 1 and 2, the arrows within the sulphur dioxide off-gas transport duct 103 indicate the direction of movement of the sulphur dioxide off-gas within the sulphur dioxide off-gas transport duct 103. The arrows in the sulphur dioxide treatment liquid conduit 104 indicate the direction of movement of the sulphur dioxide treatment liquid in the sulphur dioxide treatment liquid conduit 104. The upward arrow in the gas-liquid interaction tower 102 represents the moving direction of the sulfur dioxide waste gas in the gas-liquid interaction tower 102, and the downward arrow represents the moving direction of the sulfur dioxide treatment liquid in the gas-liquid interaction tower 102.
Referring again to fig. 2, in a specific example, the liquid storage tank 101 is connected to the bottom of the gas-liquid interaction tower 102 and is communicated with the gas-liquid interaction tower 102 for recovering the sulfur dioxide treatment liquid after the sulfur dioxide waste gas and the sulfur dioxide treatment liquid reversely interact with each other. After sulfur dioxide treatment fluid is passed through sulfur dioxide treatment fluid pipeline 104 by reservoir 101 and is got into gas-liquid interaction tower 102 and sulfur dioxide waste gas and carry out reverse interaction, sulfur dioxide treatment fluid reentries reservoir 101 in, can effectively retrieve sulfur dioxide treatment fluid like this, then with sulfur dioxide treatment fluid recycle under the condition that sulfur dioxide treatment fluid concentration satisfies the processing requirement, and then improve the utilization ratio of sulfur dioxide treatment fluid, reduce the treatment cost of sulfur dioxide waste gas.
As an example of the selection of the sulfur dioxide treatment liquid, the sulfur dioxide treatment liquid includes a sodium carbonate solution. Further, the sulfur dioxide treatment liquid is a sodium carbonate solution. Yet furtherWhen the sulfur dioxide treating solution is a sodium carbonate solution, the reaction in the gas-liquid interaction tower 102 includes: SO (SO) 2 +H 2 O→H 2 SO 3 And SO 2 +Na 2 CO 3 →Na 2 SO 3 +CO 2 . Can effectively get rid of sulfur dioxide waste gas like this, reduce the concentration of sulfur dioxide in the exhaust gas of discharging, adopt sodium carbonate solution to reduce the concentration of sulfur dioxide in the exhaust gas of discharging to 10ppm as sulfur dioxide treatment liquid, reach the emission requirement. Further, when sulfur dioxide off-gas is removed, the produced sodium sulfite can be reused as an industrial raw material. For example, the generated sodium sulfite can be used for manufacturing industrial products such as water treatment agents, corrosion inhibitors, fabric bleaches and the like, and the reuse of the sodium sulfite is realized. Therefore, the resource waste can be reduced, the cost is reduced, and the aims of health and environmental protection can be fulfilled.
In a specific example, the sulfur dioxide waste gas delivery pipe 103 is connected to the gas-liquid interaction tower 102 at a position closer to the top of the gas-liquid interaction tower 102 than the liquid storage tank 101. At this moment, the connection position of the sulfur dioxide waste gas conveying pipeline 103 and the gas-liquid interaction tower 102 is higher than the liquid storage tank 101, so that the sulfur dioxide treatment liquid in the liquid storage tank 101 is prevented from being influenced when the sulfur dioxide waste gas enters the gas-liquid interaction tower 102, and the concentration of the sulfur dioxide treatment liquid in the liquid storage tank 101 is conveniently and accurately controlled in the treatment process.
Further, a fan 1031 and a flow meter 1032 are arranged on the sulfur dioxide waste gas conveying pipeline 103. The cooperation through fan 1031 and flowmeter 1032 can carry out accurate control to the flow of sulfur dioxide waste gas, makes the flow of sulfur dioxide waste gas and the processing speed and the throughput looks adaptation of gas-liquid interaction tower 102, improves sulfur dioxide waste gas treatment's stability, and then also can improve sulfur dioxide waste gas's treatment effect, reduces sulfur dioxide's content in the waste gas.
Still further, the end of the sulfur dioxide waste gas conveying pipeline 103 far away from the gas-liquid interaction tower 102 is provided with a sulfur dioxide waste gas collecting hood 1033. The problem of waste gas leakage appears when sulfur dioxide waste gas can effectively be avoided collecting through the setting of sulfur dioxide waste gas collection cover 1033. Can follow the collection end of sulfur dioxide waste gas like this and control sulfur dioxide's revealing, and then can improve the collection effect of sulfur dioxide waste gas, avoid revealing of sulfur dioxide to cause the harm to staff and environment.
In a specific example, the gas-liquid interaction tower 102 is made of glass fiber reinforced plastic. The glass fiber reinforced plastic has excellent corrosion resistance, and particularly has good resistance to sulfur dioxide corrosion. The glass fiber reinforced plastic is adopted as the material of the gas-liquid interaction tower 102, so that the problem of leakage caused by corrosion of sulfur dioxide can be effectively avoided, and the use safety performance of the sulfur dioxide waste gas treatment device 100 in float glass production can be effectively improved.
Referring to fig. 1 and fig. 2 again, a circulating pump 1041 is disposed on the sulfur dioxide treating liquid pipeline 104, and the circulating pump 1041 is used for sending the sulfur dioxide treating liquid in the liquid storage tank 101 to the gas-liquid interaction tower 102. The sulfur dioxide treatment solution can be conveniently fed into the gas-liquid interaction tower 102 through the arrangement of the circulating pump 1041, and meanwhile, the flow of the sulfur dioxide treatment solution can be accurately controlled through the circulating pump 1041.
Referring again to fig. 2 and 3, in one embodiment, the apparatus 100 for treating sulfur dioxide waste gas from the production of float glass further comprises a screen dispenser 105, and the screen dispenser 105 is disposed in the gas-liquid interaction tower 102 for dividing the sulfur dioxide treatment liquid into a plurality of droplets. Can divide into the stranded liquid drop with the sulfur dioxide treatment fluid through screen cloth knockout 105, make the downward motion of sulfur dioxide treatment fluid with the mode that sprays, improve the area of contact of sulfur dioxide treatment fluid and sulfur dioxide waste gas, improve the treatment effect to sulfur dioxide waste gas.
Further, there are a plurality of the mesh distributors 105, and the plurality of mesh distributors 105 are distributed at different heights in the gas-liquid interaction tower 102. At this time, when the sulfur dioxide treatment liquid moves from top to bottom in the gas-liquid interaction tower 102, the sulfur dioxide treatment liquid sequentially passes through the plurality of screen dispensers 105, so that the retention time of the sulfur dioxide treatment liquid in the gas-liquid interaction tower 102 can be prolonged, and the treatment effect on sulfur dioxide waste gas is further improved.
Still further, when multiple screen dispensers 105 are provided, the openings in adjacent screen dispensers 105 may be aligned and/or staggered. In this case, the meshes of two adjacent screen dispensers 105 may all correspond to each other, may all be staggered, or may partially correspond to each other and may be staggered. It will be understood that the correspondence of the mesh openings on the screen dispensers 105 indicates that the mesh openings on both screen dispensers 105 are in the same vertical line, and that the mesh openings on the screen dispensers 105 are offset indicating that the mesh openings on both screen dispensers 105 are not in the same vertical line.
In a specific example, the device 100 for treating sulfur dioxide waste gas in float glass production further comprises a sulfur dioxide concentration detector 106, and the sulfur dioxide concentration detector 106 is arranged at the top of the gas-liquid interaction tower 102 for detecting the concentration of the discharged sulfur dioxide. The sulfur dioxide waste gas is discharged after the concentration of the sulfur dioxide waste gas is detected to reach the emission standard by the sulfur dioxide concentration detector 106.
In a specific example, the device 100 for treating sulfur dioxide waste gas in float glass production further comprises a sulfur dioxide treating liquid concentration detector 107, and the sulfur dioxide treating liquid concentration detector 107 is arranged in the liquid storage tank 101 and used for detecting the concentration of the sulfur dioxide treating liquid in the liquid storage tank 101. The concentration of the sulfur dioxide treatment liquid in the liquid storage tank 101 can be detected in real time through the sulfur dioxide treatment liquid concentration detector 107, and the sulfur dioxide treatment liquid is timely treated when the concentration of the sulfur dioxide treatment liquid is abnormal. When the concentration of the sulfur dioxide treatment liquid is detected to be lower, the concentration of the sulfur dioxide treatment liquid can be adjusted to be in a proper range by adding the sulfur dioxide treatment liquid, and when the concentration of the sulfur dioxide treatment liquid is detected to be higher, the concentration of the sulfur dioxide treatment liquid can be reduced by dilution and/or liquid drainage, so that the concentration of the sulfur dioxide treatment liquid is adjusted to be in a proper range. It is understood that the sulfur dioxide treating liquid concentration detector 107 may be electrically connected to a controller, and the controller adjusts the concentration of the sulfur dioxide treating liquid in the liquid storage tank 101 by receiving the concentration information detected by the sulfur dioxide treating liquid concentration detector 107.
In a specific example, the liquid storage tank 101 is provided with a sulfur dioxide treatment liquid replenishment hole 1011 for replenishing the sulfur dioxide treatment liquid. When sulfur dioxide waste gas is treated and sulfur dioxide treatment liquid needs to be supplemented, the sulfur dioxide treatment liquid can be supplemented into the liquid storage tank 101 through the sulfur dioxide treatment liquid supplementing hole 1011, so that the concentration of the sulfur dioxide treatment liquid in the liquid storage tank 101 is stabilized in a proper range.
In a specific example, the device 100 for treating sulfur dioxide waste gas in float glass production further comprises a liquid level detector 108, and the liquid level detector 108 is arranged in the liquid storage tank 101 and used for detecting the liquid level position of the sulfur dioxide treatment liquid in the liquid storage tank 101. Can carry out real-time detection to the liquid level position of sulfur dioxide treatment fluid in the reservoir 101 through level detector 108, when the liquid level position of sulfur dioxide treatment fluid appears unusually, for example when too high or low excessively, in time adopt corresponding mode to control the liquid level of sulfur dioxide treatment fluid. It is understood that the liquid level detector 108 may be electrically connected to a controller, and the controller may adjust the liquid level of the sulfur dioxide treatment liquid in the liquid storage tank 101 by receiving the liquid level information detected by the liquid level detector 108.
In one particular example, a refill port 1014 is provided in the reservoir 101, and the refill port 1014 is used to refill water. By arranging the water replenishing hole 1014, water can be timely replenished when the reservoir 101 needs to be replenished.
Referring again to fig. 2, in a specific example, the inner wall of the reservoir 101 is provided with an upper level limit scale 1012 and a lower level limit scale 1013. The upper level limit scale 1012 and the lower level limit scale 1013 may mark a suitable level height range of the sulfur dioxide treatment liquid. Meanwhile, the upper liquid level limit scale 1012 can be used as a stop timeline for replenishing water in the reservoir 101, and the lower liquid level limit scale 1013 can be used as a start timeline for replenishing water in the reservoir 101.
In a specific example, the liquid storage tank 101 is provided with a liquid discharge hole 1015, and the liquid discharge hole 1015 is used for discharging the liquid in the liquid storage tank 101.
In one particular example, the apparatus 100 for treating sulfur dioxide off-gas in float glass production further comprises a sodium sulfite concentration detector disposed in the reservoir 101 for detecting the concentration of sodium sulfite in the reservoir 101. When the sodium sulfite concentration detector detects that the sodium sulfite concentration is high and the sulfur dioxide concentration detector 106 detects that the sulfur dioxide concentration is increased, the sulfur dioxide treatment capability is limited, and at this time, the liquid in the reservoir 101 can be discharged through the liquid discharge hole 1015. Then the collected high-concentration sodium sulfite is subjected to subsequent treatment to obtain reusable sodium sulfite. It will be appreciated that the sodium sulfite concentration detector may be in electrical communication with a controller that regulates the discharge of liquid from reservoir 101 by receiving information about the sodium sulfite concentration detected by the sodium sulfite concentration detector.
Yet another embodiment of the present invention provides a float glass manufacturing apparatus. The production equipment comprises a slag box 200, an annealing kiln 300 and the treatment device 100, wherein one end of the sulfur dioxide waste gas conveying pipeline 103 is connected between the slag box 200 and the annealing kiln 300 so as to be used for collecting sulfur dioxide waste gas.
In yet another embodiment of the present invention, a method for treating sulfur dioxide waste gas in float glass production is provided. The treatment method of the sulfur dioxide waste gas in the float glass production adopts the treatment device 100 of the sulfur dioxide waste gas in the float glass production, and the treatment method of the sulfur dioxide waste gas in the float glass production comprises the following steps: adding sulfur dioxide treatment liquid into a liquid storage tank 101, and introducing the sulfur dioxide treatment liquid into a gas-liquid interaction tower 102 through a sulfur dioxide treatment liquid pipeline 104; introducing the sulfur dioxide waste gas into a gas-liquid interaction tower 102 through a sulfur dioxide waste gas conveying pipeline 103; so that the sulfur dioxide waste gas and the sulfur dioxide treatment liquid are subjected to reverse interaction in the gas-liquid interaction tower 102. By adopting the treatment method in the embodiment, the sulfur dioxide waste gas in the float glass production can be effectively treated, the concentration of sulfur dioxide in the waste gas is reduced, and the concentration of sulfur dioxide in the discharged waste gas reaches the discharge standard.
In one particular example, the sulfur dioxide treatment fluid includes a sodium carbonate solution. Further, the sulfur dioxide treatment liquid is a sodium carbonate solution.
In a specific example, when the sulfur dioxide waste gas and the sulfur dioxide treatment solution are reversely interacted in the gas-liquid interaction tower 102, the reaction in the gas-liquid interaction tower 102 includes: SO (SO) 2 +H 2 O→H 2 SO 3 And SO 2 +Na 2 CO 3 →Na 2 SO 3 +CO 2 . Can effectively get rid of sulfur dioxide waste gas like this, reduce the concentration of sulfur dioxide in the exhaust gas of discharging, adopt sodium carbonate solution to reduce the concentration of sulfur dioxide in the exhaust gas of discharging to 10ppm as sulfur dioxide treatment liquid, reach the emission requirement. Further, when sulfur dioxide off-gas is removed, the produced sodium sulfite can be reused as an industrial raw material. For example, the generated sodium sulfite can be used for manufacturing industrial products such as water treatment agents, corrosion inhibitors, fabric bleaches and the like, and the reuse of the sodium sulfite is realized. Therefore, the resource waste can be reduced, the cost is reduced, and the aims of health and environmental protection can be fulfilled.
In one particular example, the end of the sulphur dioxide off-gas delivery duct 103 remote from the gas-liquid interaction column 102 is connected between the float glass production slag box 200 and the annealing lehr 300 for collecting sulphur dioxide that has not reacted with the glass. Further, a sulfur dioxide collection hood is connected between the slag box 200 and the annealing furnace 300 for float glass production to improve the collection effect of the sulfur dioxide off-gas. It is understood that roller beds 400 are provided in both the slag box 200 and the annealing lehr 300, and the glass is transported on the roller beds 400.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims, and the description and the drawings can be used for explaining the contents of the claims.
Claims (10)
1. A device for treating sulfur dioxide waste gas in float glass production is characterized by comprising a liquid storage tank, a gas-liquid interaction tower, a sulfur dioxide waste gas conveying pipeline and a sulfur dioxide treatment liquid pipeline;
the liquid storage tank is used for storing sulfur dioxide treatment liquid, one end of the sulfur dioxide treatment liquid pipeline is connected to the liquid storage tank, and the other end of the sulfur dioxide treatment liquid pipeline is connected to the gas-liquid interaction tower and used for introducing the sulfur dioxide treatment liquid into the gas-liquid interaction tower;
one end of the sulfur dioxide waste gas conveying pipeline is used for collecting sulfur dioxide waste gas, and the other end of the sulfur dioxide waste gas conveying pipeline is connected to the gas-liquid interaction tower and used for introducing the sulfur dioxide waste gas into the gas-liquid interaction tower;
the connection position of the sulfur dioxide waste gas conveying pipeline and the gas-liquid interaction tower is closer to the bottom of the gas-liquid interaction tower than the connection position of the sulfur dioxide treatment liquid pipeline and the gas-liquid interaction tower, so that sulfur dioxide waste gas moves from bottom to top in the gas-liquid interaction tower, sulfur dioxide treatment liquid moves from top to bottom in the gas-liquid interaction tower, and then the sulfur dioxide waste gas and the sulfur dioxide treatment liquid are in reverse interaction in the gas-liquid interaction tower.
2. The apparatus for treating sulfur dioxide waste gas generated in the float glass production according to claim 1, wherein the liquid storage tank is connected to the bottom of the gas-liquid interaction tower and is communicated with the gas-liquid interaction tower for recovering the sulfur dioxide treatment liquid after the sulfur dioxide waste gas is reversely interacted with the sulfur dioxide treatment liquid.
3. The apparatus for treating sulfur dioxide off-gas in float glass production as claimed in claim 2, wherein the sulfur dioxide off-gas delivery pipe is connected to the gas-liquid interaction tower at a position closer to the top of the gas-liquid interaction tower than the liquid storage tank.
4. The apparatus for treating sulfur dioxide off-gas in float glass production as claimed in claim 1, further comprising a screen dispenser provided in said gas-liquid interaction tower for dividing the sulfur dioxide treatment liquid into a plurality of droplets.
5. The apparatus for treating sulfur dioxide off-gas in float glass production according to claim 4, wherein the screen dispenser is provided in plurality, and a plurality of screen dispensers are distributed at different heights in the gas-liquid interaction tower.
6. The device for treating sulfur dioxide waste gas in the production of float glass according to any one of claims 1 to 5, wherein the gas-liquid interaction tower is made of glass fiber reinforced plastic.
7. A float glass production facility, comprising a slag box, an annealing kiln and the processing device of any one of claims 1 to 6, wherein one end of the sulfur dioxide waste gas conveying pipeline is connected between the slag box and the annealing kiln for collecting sulfur dioxide waste gas.
8. A method for treating sulfur dioxide waste gas in float glass production, which is characterized in that the treatment device of any one of claims 1-6 is adopted, and the treatment method comprises the following steps:
adding sulfur dioxide treatment liquid into the liquid storage tank, and introducing the sulfur dioxide treatment liquid into the gas-liquid interaction tower through the sulfur dioxide treatment liquid pipeline;
introducing sulfur dioxide waste gas into the gas-liquid interaction tower through the sulfur dioxide waste gas conveying pipeline;
and the sulfur dioxide waste gas and the sulfur dioxide treatment liquid are subjected to reverse interaction in the gas-liquid interaction tower.
9. The method of treating sulfur dioxide off-gas in the float glass process of claim 8, wherein the sulfur dioxide treatment solution comprises a sodium carbonate solution.
10. The method for treating sulfur dioxide waste gas generated in the production of float glass according to claim 8, wherein the step of introducing the sulfur dioxide waste gas into the gas-liquid interaction tower through the sulfur dioxide waste gas delivery pipe further comprises the following steps:
and connecting one end of the sulfur dioxide waste gas conveying pipeline, which is far away from the gas-liquid interaction tower, between a slag box and an annealing kiln for float glass production so as to collect sulfur dioxide which does not react with glass.
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| CN202210395192.5A CN114832602A (en) | 2022-04-15 | 2022-04-15 | Float glass production equipment, sulfur dioxide waste gas treatment device and treatment method |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515208A (en) * | 2006-10-30 | 2012-06-27 | 廖树汉 | Method and apparatus for producing sodium sulfite through 100% recovery of boiler exhaust gas by sodium carbonate |
| CN210699402U (en) * | 2019-09-17 | 2020-06-09 | 河北南玻玻璃有限公司 | Float glass slag box sulphur removal system |
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- 2022-04-15 CN CN202210395192.5A patent/CN114832602A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515208A (en) * | 2006-10-30 | 2012-06-27 | 廖树汉 | Method and apparatus for producing sodium sulfite through 100% recovery of boiler exhaust gas by sodium carbonate |
| CN210699402U (en) * | 2019-09-17 | 2020-06-09 | 河北南玻玻璃有限公司 | Float glass slag box sulphur removal system |
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Application publication date: 20220802 |