CN113101798A - Treatment device and treatment method for sulfur-containing waste gas - Google Patents
Treatment device and treatment method for sulfur-containing waste gas Download PDFInfo
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- CN113101798A CN113101798A CN202110545442.4A CN202110545442A CN113101798A CN 113101798 A CN113101798 A CN 113101798A CN 202110545442 A CN202110545442 A CN 202110545442A CN 113101798 A CN113101798 A CN 113101798A
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- sulfur
- waste gas
- containing waste
- sulfide
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- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 239000002912 waste gas Substances 0.000 title claims abstract description 89
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 84
- 239000011593 sulfur Substances 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims description 5
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims abstract description 108
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 78
- 238000009833 condensation Methods 0.000 claims abstract description 57
- 230000005494 condensation Effects 0.000 claims abstract description 56
- 238000010521 absorption reaction Methods 0.000 claims abstract description 47
- 238000000746 purification Methods 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 239000003595 mist Substances 0.000 claims abstract description 17
- 230000001939 inductive effect Effects 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 64
- 239000007789 gas Substances 0.000 claims description 31
- 239000007921 spray Substances 0.000 claims description 27
- 238000005507 spraying Methods 0.000 claims description 27
- 239000003638 chemical reducing agent Substances 0.000 claims description 18
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 16
- 239000000428 dust Substances 0.000 claims description 16
- 238000004140 cleaning Methods 0.000 claims description 15
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 claims description 14
- 239000005864 Sulphur Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 230000002265 prevention Effects 0.000 abstract description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 150000004763 sulfides Chemical class 0.000 description 8
- 238000007789 sealing Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
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Classifications
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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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- 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
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to the field of waste gas treatment devices, in particular to a treatment device for sulfur-containing waste gas. Comprises a frame; the sulfide absorption device is provided with an air inlet at the air inlet end and an air outlet at the air outlet end; the air inlet of the heating channel is connected with the air outlet of the sulfide absorption device; connecting a pipeline; an air inducing device; and the condensation channel is provided with an air inlet and an air outlet, and the air inlet of the condensation channel is connected with the air outlet of the heating channel. The invention purifies the sulfur-containing waste gas through multiple purification steps, liquefies the polluted water mist wrapped by the sulfur-containing waste gas during purification through the condensation channel, and has the advantages of good purification effect and prevention of secondary pollution in the purification process.
Description
Technical Field
The invention relates to the field of waste gas treatment devices, in particular to a treatment device and a treatment method for sulfur-containing waste gas.
Background
The combustion of sulfur-containing minerals can generate a large amount of sulfur-containing waste gas, and the pollution of sulfur to the environment mainly refers to the pollution of sulfur oxides and hydrogen sulfide to the atmosphere and the pollution of sulfate and hydrogen sulfide to water. To prevent sulfur pollution, sulfur-containing exhaust gas is subjected to desulfurization treatment during discharge.
When sulfur-containing exhaust gas is desulfurized using a sulfide-absorbing liquid such as a sodium hydroxide solution, it is necessary to atomize the sulfide-absorbing liquid. The treated sulfur-containing waste gas often entrains water mist, the water mist contains pollutants such as sulfide or residual sodium hydroxide, and the like, and the direct discharge easily causes secondary pollution. And the sulfide components of the sulfur-containing waste gas are complex, besides sulfur dioxide and sulfur trioxide, other sulfides such as thiols and the like exist, and a single sulfide absorption liquid cannot deal with various sulfides.
Disclosure of Invention
In order to solve the technical problem, a treatment device for sulfur-containing waste gas is provided.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
a treatment device for sulfur-containing waste gas comprises,
a frame;
the sulfide absorption device is provided with an air inlet at the air inlet end and an air outlet at the air outlet end;
the air inlet of the heating channel is connected with the air outlet of the sulfide absorption device;
connecting a pipeline;
an air inducing device;
the processing device also comprises a processing device which comprises a processing device,
and the condensation channel is provided with an air inlet and an air outlet, and the air inlet of the condensation channel is connected with the air outlet of the heating channel.
Preferably, the air inlet of the sulfide absorption device is provided with a dust removal filter screen.
Preferably, the treatment device further comprises a gas incinerator, and the gas outlet of the gas incinerator is connected with the gas inlet of the sulfide absorption device.
Preferably, the sulphide absorbing means is provided with a sulphide cleaning tank, the sulphide cleaning tank comprising,
the refrigerator comprises a refrigerator body, wherein one side of the refrigerator body is provided with an air inlet, and the other side of the refrigerator body is provided with an air outlet;
the liquid filter screens are arranged in parallel and fixedly arranged in the box body;
the liquid tank is arranged below the box body;
the water inlet of the first water pump is connected with the liquid tank;
the first spraying assembly is provided with a plurality of nozzles, the first spraying assembly is arranged at the top of the box body, a water inlet of the first spraying assembly is connected with a water outlet of the first water pump, and the nozzles of the first spraying assembly face the liquid filter screen.
Preferably, the sulphide absorbing means is further provided with sulphide cleaning channels, the sulphide cleaning channels comprising,
the air inlet of the channel main body is connected with the air outlet of the box body, and the air outlet is arranged on the other side of the channel main body;
a source of liquid;
a water inlet of the second water pump is communicated with the liquid source;
and the second spraying assembly is provided with a plurality of spray heads, the second spraying assembly is arranged in the channel main body, a water inlet of the second spraying assembly is connected with a water outlet of the second water pump, and the spray heads of the second spraying assembly are arranged towards the inside of the channel main body.
Preferably, the sulphide absorbing means comprises a sulphide cleaning channel, the sulphide cleaning channel comprising,
the air inlet is arranged on one side of the channel main body, and the air outlet is arranged on the other side of the channel main body;
a source of liquid;
a water inlet of the second water pump is communicated with the liquid source;
and the second spraying assembly is provided with a plurality of spray heads, the second spraying assembly is arranged in the channel main body, a water inlet of the second spraying assembly is connected with a water outlet of the second water pump, and the spray heads of the second spraying assembly are arranged towards the inside of the channel main body.
Preferably, the condensing passage includes, in combination,
a condensation channel body;
condenser pipe, condenser pipe have a plurality of, and the even inside of installing at the condensation passage main part of condenser pipe.
Preferably, the air outlet of the condensation channel is connected with a discharge channel, and a plurality of reducing agent absorption layers are arranged in the discharge channel.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention purifies the sulfur-containing waste gas through multiple purification steps, liquefies the polluted water mist wrapped by the sulfur-containing waste gas during purification through the condensation channel, and has the advantages of good purification effect and prevention of secondary pollution in the purification process.
2. The invention removes dust from the sulfur-containing waste gas through the dust removal filter screen, prevents dust in the sulfur-containing waste gas from entering the next purification process and consuming sulfide absorption liquid, and has the advantage of less consumption of sulfide absorption liquid in purification.
3. The invention increases the contact area of the sulfide absorption liquid and the sulfur-containing waste gas in the primary purification through the design of the multilayer liquid filter screen, and has the advantage of better purification effect in the primary purification.
4. According to the invention, through the design of the gas incinerator, the sulfide is incinerated and oxidized into sulfur dioxide or sulfur trioxide which is easy to treat, and the advantage of enabling the sulfide in the sulfur-containing waste gas to be easier to treat is achieved.
5. According to the invention, through the design of the plurality of reducing agent absorption layers, the residual pollution in the sulfur-containing waste gas is absorbed and then exhausted, and the advantage of preventing the treated sulfur-containing waste gas from remaining residual pollution is achieved.
Drawings
FIG. 1 is a top view of the present invention;
FIG. 2 is a perspective view of the present invention;
FIG. 3 is a perspective view of a sulfide decontamination box of the present invention;
FIG. 4 is a perspective view of the housing of FIG. 3;
FIG. 5 is a perspective view of a sulfide purification channel of the present invention;
FIG. 6 is a front view of a sulfide purge channel of the present invention;
FIG. 7 is a perspective view of a condensing channel of the present invention;
FIG. 8 is a top view of the condensing channel of the present invention;
FIG. 9 is a cross-sectional view taken at A-A of FIG. 8;
FIG. 10 is a front view of the discharge passage of the present invention;
fig. 11 is a sectional view taken along line B-B of fig. 10.
The reference numbers in the figures are:
1-a gas incinerator;
2-dust removal filter screen; 2 a-a handle;
3-a sulfide purification tank; 3 a-liquid strainer; 3 b-a liquid bath; 3 c-a first water pump; 3 d-a first spray assembly; 3 e-a box body;
4-sulfide purge channel; 4 a-a channel body; 4 b-a liquid source; 4 c-a second water pump; 4 d-a second spray assembly;
5-heating the channel;
6-a condensation channel; 6 a-condensation channel body; 6 b-a condenser tube;
7-a discharge channel; 7 a-reducing agent absorbing layer.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
In order to solve the technical problem of purifying the sulfur-containing waste gas with high purification rate, as shown in fig. 1 and 2, the following technical scheme is provided:
a treatment device for sulfur-containing waste gas comprises,
a frame;
the sulfide absorption device is provided with an air inlet at the air inlet end and an air outlet at the air outlet end;
the heating channel 5 is connected with the air inlet of the heating channel 5 and the air outlet of the sulfide absorption device;
connecting a pipeline;
an air inducing device (not shown in the drawings);
the processing device also comprises a processing device which comprises a processing device,
and the condensation channel 6 is provided with an air inlet and an air outlet, and the air inlet of the condensation channel 6 is connected with the air outlet of the heating channel 5.
Specifically, the sulfide absorption device is internally provided with sulfide absorption liquid, and the components of the sulfide absorption liquid are reducing agent solution, such as sodium hydroxide solution and the like, or other desulfurization solution. The reducing agent and other substances in the solution react with sulfur dioxide and other sulfides or adsorb the sulfides, so that the aim of desulfurizing the waste gas is fulfilled.
The heating channel 5 is an electric heater or other pipelines with air heating function. The induced draft device is used for providing power for the circulation of the sulfur-containing waste gas in the device.
After being treated by the sulfide absorption device, the sulfur-containing waste gas needs a heating step to reach the emission standard. However, after the absorption liquid in the sulfide absorption device is mixed with the sulfide, the exhaust gas carries a large amount of water vapor, and the water vapor is doped with a large amount of pollutants such as the sulfide and the reducing agent. If the direct emission after the heating this moment, the secondary pollution can be caused once more to the pollution steam that carries in the waste gas, and has increased condensation channel 6, and the pollution steam in the heating aftertreatment waste gas can be condensed, can avoid secondary pollution.
The sulfur-containing waste gas is absorbed by a sulfide absorption device to remove most sulfides. And then, part of the polluted water mist carried by the waste gas enters the heating channel 5, and is evaporated into water vapor by heating through the heating channel 5. The heated waste gas finally reaches the condensing channel 6, and the water vapor containing the polluted water is condensed into water drops under the condensation action of the condensing channel 6, so that the water mist containing the polluted water in the waste gas is removed, and the secondary pollution of the waste gas is prevented.
Further:
in order to solve the technical problem of cleaning dust in sulfur-containing waste gas, as shown in fig. 3 and 4, the following technical scheme is provided:
and a dust removal filter screen 2 is arranged at the air inlet of the sulfide absorption device.
Specifically, dust removal filter screen 2 detachable installs on sulphide absorbing device, is provided with the draw-in groove on the sulphide absorbing device, and dust removal filter screen 2 clamps on the draw-in groove, is provided with the handle on the dust removal filter screen 2, can accomplish dust removal filter screen 2's dismantlement and change through the handle push-and-pull.
Most of sulfur-containing waste gas has a lot of dust, and through the filtration of dust removal filter screen 2, can filter the dust, play the effect that prevents the dust from consuming the reductant in the sulphide absorbing device, can save the cost, and can assist and reach better exhaust-gas treatment effect.
Further:
in order to solve the technical problem of converting all sulfides in sulfur-containing waste gas into sulfur dioxide or sulfur trioxide gas, as shown in fig. 1 and 2, the following technical scheme is provided:
the treatment device also comprises a gas incinerator 1, and a gas outlet of the gas incinerator 1 is connected with a gas inlet of the sulfide absorption device.
Specifically, part of the sulfides may not be absorbed by the reducing agent of the sulfide purification device. The sulfur-containing waste gas firstly enters the gas incinerator 1 for incineration, so that all sulfides in the sulfur-containing waste gas are burnt and converted into sulfur dioxide or sulfur trioxide easy to treat, and the sulfur dioxide and the sulfur trioxide can completely react with a reducing agent to be absorbed.
Further:
in order to solve the technical problem of absorbing sulfide in sulfur-containing waste gas, as shown in fig. 3 and 4, the following technical scheme is provided:
the sulfide absorption device is provided with a sulfide purification box 3, the sulfide purification box 3 comprises a box body 3e, one side of the box body 3e is provided with an air inlet, and the other side is provided with an air outlet;
the liquid filter screens 3a are arranged, a plurality of liquid filter screens 3a are arranged, and the liquid filter screens 3a are parallel to each other and fixedly arranged in the box body 3 e;
a liquid tank 3b, the liquid tank 3b being provided below the case 3 e;
a water inlet of the first water pump 3c is connected with the liquid tank 3 b;
Specifically, the liquid tank 3b contains a sulfide-adsorbing liquid. The first water pump 3c sprays the sulfide absorption liquid in the liquid tank 3b to the box body 3e, and the sulfide absorption liquid finally falls into the liquid tank 3b again in the box body, so that the cost can be saved, and only the sulfide absorption liquid in the liquid tank 3b needs to be replaced regularly.
After sulfur-containing waste gas enters the box body 3e, sulfide is preliminarily absorbed by sulfide absorption liquid sprayed out of the first spraying assembly 3d, and the purpose of preliminary purification is achieved.
The design of multilayer liquid filter screen 3a can hinder the whereabouts process of first spray assembly 3d spun liquid stream in sulphide purifying box 3, delays the dwell time of liquid stream in box 3e to make the liquid stream disperse, increase the area of contact of liquid stream and waste gas, make the reaction more abundant, reinforcing purification performance.
Further:
in order to solve the technical problem of further absorbing the sulfide in the sulfur-containing waste gas, as shown in fig. 5 and 6, the following technical solutions are provided:
the sulphide absorption device is also provided with a sulphide cleaning channel 4, the sulphide cleaning channel 4 comprises,
one side of the channel main body 4a is provided with an air inlet, the air inlet of the channel main body 4a is connected with an air outlet of the box body 3e, and the other side of the channel main body 4a is provided with an air outlet;
a liquid source 4 b;
a water inlet of the second water pump 4c is communicated with the liquid source 4 b;
and the second spraying assembly 4d is provided with a plurality of spray heads, the second spraying assembly 4d is arranged in the channel main body 4a, a water inlet of the second spraying assembly 4d is connected with a water outlet of the second water pump 4c, and the spray heads of the second spraying assembly 4d are arranged towards the inside of the channel main body 4 a.
Specifically, sulphide purification channel 4 can set up alone, can not set up sulphide purifying box 3 in the device promptly, does not set up sulphide purifying box 3 and is applicable to the less condition of sulphide content in containing sulphur waste gas. The sulfide purification passage 4 is provided after the sulfide purification tank 3 and can cope with sulfur-containing off-gas of different concentrations.
The spray head of the second spray assembly 4d is selected as an atomizing spray head, and the liquid source 4b is a reducing agent solution or other sulfide absorption liquid.
The sulfur-containing waste gas primarily treated by the sulfide purifying box 3 enters the sulfide purifying channel 4, the second water pump 4c injects the liquid source 4b into the second spraying component 4d, and the sulfide absorption liquid is converted into water mist through the atomization of the second spraying component 4d and is fully mixed with the sulfur-containing waste gas in the channel main body 4 a. The water mist of the sulfide absorption liquid reacts with the sulfide in the sulfur-containing waste gas, so that the aim of secondarily purifying the sulfide in the sulfur-containing waste gas is fulfilled.
Further:
in order to solve the technical problem of removing the pollution-containing water mist doped after the sulfur-containing waste gas is treated, as shown in fig. 7, 8 and 9, the following technical scheme is provided:
the condensation channel 6 comprises a number of channels,
the condensation passage main body 6 a;
the condensation pipe 6b, the condensation pipe 6b has a plurality of, and the even inside of installing in condensation channel main part 6a of condensation pipe 6 b.
Specifically, the sulfur-containing waste gas is treated by the sulfide purification channel 4, and then the sulfur-containing waste gas can wrap part of water mist, and the water mist is acidic or alkaline according to the purification degree of the sulfur-containing waste gas in the sulfide purification channel 4, and can carry a little sulfide pollution. Contain sulphur waste gas from sulphide purification channel 4 to heating channel 5, heated by heating channel 5, pollute water smoke by the evaporation for polluting steam, later to condensing channel 6, pollute the steam condensation for the drop of water, play and clear away the purpose of the pollution steam that contains sulphur waste gas and wrap up under the way.
A diversion trench is arranged in the condensation channel body 6a, and the condensation channel 6 is also provided with a sewage bucket for collecting condensed water drops on the condensation pipe 6 b.
In a preferable scheme, the condensation pipe 6b is vertically arranged, the lifting plate 6c is arranged in the condensation channel main body 6a, a plurality of guide holes for the condensation pipe 6b to penetrate through are formed in the lifting plate 6c, the outer edge of the lower surface of the lifting plate 6c is provided with an upper convex ring 6d, the top of the condensation channel main body 6a is provided with a lifting driver 6e connected with the lifting plate 6c, and the lifting driver 6e is an air cylinder and the like.
The outer edge of the upper convex ring 6d is connected with an annular sealing ring 6f, the circumferential surface of the annular sealing ring 6f is sealed with the inner wall surface of the condensation channel main body 6a, the annular sealing ring 6f and a lifting plate 6c of the condensation channel main body 6a are positioned at the inner bottom of the condensation channel main body 6a, the condensed water is collected in a space formed by the lifting plate and the annular sealing ring 6f in a surrounding mode, due to the fact that the guide hole is in clearance fit with the condensation pipe 6b, the cold water flows downwards along the condensation pipe 6b, meanwhile, an inclined chamfer 6g is arranged on the inner wall of the annular sealing ring 6f, and during condensation, the condensed water on the inner wall of the condensation channel main body 6a enters the space from the inclined chamfer 6g along the inner wall of the condensation.
In addition, the lifting plate 6c can lift the condensation pipe 6b, and the annular sealing ring 6f can clean the inner wall of the condensation channel body 6 a.
Be equipped with a plurality of being located at the interior bottom of condensation duct main part 6a the peripheral ring groove 6h of condenser pipe 6b lower extreme, the tank bottom of every ring groove 6h be equipped with place in the vertical intercommunication 6j of the slop pail intercommunication of interior bottom below of condensation duct main part 6a, above structure can in time collect the comdenstion water according to setting for the direction, can also clear up corresponding part simultaneously, avoids the attachment more to lead to the condensation efficiency to reduce.
Further:
in order to solve the technical problem of preventing the treated sulfur-containing waste gas from still containing sulfide, as shown in fig. 10 and 11, the following technical solutions are provided:
the gas outlet of the condensing channel 6 is connected with a discharge channel 7, and a plurality of reducing agent absorption layers 7a are arranged in the discharge channel 7.
Specifically, reductant absorbed layer 7a can be the active carbon adsorption layer, perhaps places the filter screen of reductant, and it is higher directly to handle the sulfur waste gas cost of high concentration with reductant absorbed layer 7a, needs often to change, and the effect is not good, but it has better treatment effect to the sulfur waste gas of low concentration. The sulfur-containing waste gas discharged from the condensing channel 6 cannot be ensured to have no pollution residue, and the sulfur-containing waste gas discharged from the discharging channel 7 can be ensured to meet the discharging standard through the treatment of the reducing agent absorbing layer 7a, so that the discharging channel 7 plays a role in insurance.
The working principle of the invention is as follows:
step one, sulfur-containing waste gas enters a gas incinerator 1, and sulfur elements in the sulfur-containing waste gas are converted into sulfur dioxide or sulfur trioxide which is easy to treat through incineration and oxidation of the gas incinerator 1.
And step two, the sulfur-containing waste gas treated by the gas incinerator 1 enters the sulfide purification box 3 after being dedusted by the dedusting filter screen 2, and undergoes primary reaction with sulfide absorption liquid in the sulfide purification box 3, so as to achieve the purpose of primary purification of sulfide in the sulfur-containing waste gas.
And step three, the sulfur-containing waste gas treated by the sulfide purifying box 3 enters the sulfide purifying channel 4, and is fully mixed and reacted with the water-mist sulfide absorption liquid in the sulfide purifying channel 4, so that the aim of secondarily purifying the sulfur-containing waste gas is fulfilled.
And step four, the sulfur-containing waste gas treated by the sulfide purifying channel 4 enters the heating channel 5, and the polluted water mist carried by the sulfur-containing waste gas in the sulfide purifying channel 4 is converted into polluted water vapor by heating of the heating channel 5.
And step five, the sulfur-containing waste gas heated by the heating channel 5 enters the condensing channel 6, and the polluted water vapor is condensed into water drops through condensation of the condensing pipe 6b, so that the polluted water mist in the sulfur-containing waste gas is removed.
And step six, the sulfur-containing waste gas treated by the condensing channel 6 enters the discharge channel 7, is absorbed by the reducing agent absorption layer 7a, completely eliminates the pollution residue of the sulfur-containing waste gas, and is then emptied.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A treatment device for sulfur-containing waste gas comprises,
a frame;
the sulfide absorption device is provided with an air inlet at the air inlet end and an air outlet at the air outlet end;
the air inlet of the heating channel (5) is connected with the air outlet of the sulfide absorption device;
connecting a pipeline;
an air inducing device;
characterized in that the processing device further comprises,
the condensation channel (6), the condensation channel (6) is provided with an air inlet and an air outlet, and the air inlet of the condensation channel (6) is connected with the air outlet of the heating channel (5).
2. A treatment plant for sulfur-containing waste gas according to claim 1, characterized in that the inlet of the sulfide absorption unit is equipped with a dust screen (2).
3. A treatment plant for sulfur-containing waste gas according to claim 1, characterized in that said treatment plant further comprises a gas incinerator (1), the gas outlet of the gas incinerator (1) being connected to the gas inlet of the sulfide absorption unit.
4. A treatment plant for sulphur-containing waste gas according to claim 1, wherein the sulphide absorption unit is provided with a sulphide cleaning tank (3), the sulphide cleaning tank (3) comprising,
the refrigerator comprises a refrigerator body (3e), wherein one side of the refrigerator body (3e) is provided with an air inlet, and the other side of the refrigerator body (3e) is provided with an air outlet;
the liquid filtering nets (3a) are provided with a plurality of liquid filtering nets (3a), and the liquid filtering nets (3a) are parallel to each other and fixedly installed in the box body (3 e);
a liquid tank (3b), wherein the liquid tank (3b) is arranged below the box body (3 e);
a water inlet of the first water pump (3c) is connected with the liquid tank (3 b);
first spray assembly (3d), first spray assembly (3d) have a plurality of shower nozzle, and first spray assembly (3d) set up at the top of box (3e), and the delivery port of first water pump (3c) is connected to the water inlet of first spray assembly (3d), and the shower nozzle of first spray assembly (3d) is towards liquid filter screen (3 a).
5. A treatment plant for sulphur-containing exhaust gases according to claim 4, wherein the sulphide absorption unit is further provided with a sulphide cleaning channel (4), the sulphide cleaning channel (4) comprising,
the air inlet of one side of the channel main body (4a) is connected with the air outlet of the box body (3e), and the air outlet is arranged on the other side of the channel main body (4 a);
a liquid source (4 b);
a water inlet of the second water pump (4c) is communicated with the liquid source (4 b);
the second spraying assembly (4d) is provided with a plurality of spray heads, the second spraying assembly (4d) is arranged in the channel main body (4a), a water inlet of the second spraying assembly (4d) is connected with a water outlet of the second water pump (4c), and the spray heads of the second spraying assembly (4d) are arranged towards the inside of the channel main body (4 a).
6. A treatment plant for sulphur-containing exhaust gases according to claim 1, wherein the sulphide absorption unit comprises a sulphide cleaning channel (4), the sulphide cleaning channel (4) comprising,
the air inlet is arranged on one side of the channel main body (4a), and the air outlet is arranged on the other side of the channel main body (4 a);
a liquid source (4 b);
a water inlet of the second water pump (4c) is communicated with the liquid source (4 b);
the second spraying assembly (4d) is provided with a plurality of spray heads, the second spraying assembly (4d) is arranged in the channel main body (4a), a water inlet of the second spraying assembly (4d) is connected with a water outlet of the second water pump (4c), and the spray heads of the second spraying assembly (4d) are arranged towards the inside of the channel main body (4 a).
7. The apparatus for treating sulfur-containing off-gas as recited in claim 1, wherein the condensation passage (6) comprises,
a condensation passage main body (6 a);
the condensation pipe (6b), the condensation pipe (6b) has a plurality of, and the even inside of installing in condensation passage main part (6a) of condensation pipe (6 b).
8. The device for treating sulfur-containing waste gas as claimed in claim 1, wherein the outlet of the condensation channel (6) is connected with a discharge channel (7), and a plurality of reducing agent absorption layers (7a) are arranged in the discharge channel (7).
9. A method for treating sulfur-containing waste gas, using the apparatus for treating sulfur-containing waste gas according to any one of claims 1 to 8, characterized by comprising the steps of:
step one, sulfur-containing waste gas enters a gas incinerator, and sulfur elements in the sulfur-containing waste gas are converted into sulfur dioxide or sulfur trioxide which is easy to treat through incineration and oxidation of the gas incinerator;
secondly, the sulfur-containing waste gas treated by the gas incinerator enters a sulfide purification box after being dedusted by a dedusting filter screen, and is subjected to preliminary reaction with sulfide absorption liquid in the sulfide purification box, so that the aim of purifying sulfide in the sulfur-containing waste gas for the first time is fulfilled;
step three, the sulfur-containing waste gas treated by the sulfide purifying box enters a sulfide purifying channel, and is fully mixed and reacted with water-mist sulfide absorption liquid in the sulfide purifying channel, so that the aim of secondarily purifying the sulfur-containing waste gas is fulfilled;
step four, the sulfur-containing waste gas treated by the sulfide purification channel enters the heating channel, and the polluted water mist carried by the sulfur-containing waste gas in the sulfide purification channel is converted into polluted water vapor by heating of the heating channel;
step five, enabling the sulfur-containing waste gas heated by the heating channel to enter a condensation channel, condensing polluted water vapor into water drops through condensation of a condensation pipe, and removing polluted water mist in the sulfur-containing waste gas;
and step six, the sulfur-containing waste gas treated by the condensation channel enters the discharge channel, is absorbed by the reducing agent absorption layer, completely eliminates the pollution residue of the sulfur-containing waste gas, and is then emptied.
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