CN109126450B - Industrial carbon monoxide waste gas treatment device - Google Patents
Industrial carbon monoxide waste gas treatment device Download PDFInfo
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- CN109126450B CN109126450B CN201811278934.6A CN201811278934A CN109126450B CN 109126450 B CN109126450 B CN 109126450B CN 201811278934 A CN201811278934 A CN 201811278934A CN 109126450 B CN109126450 B CN 109126450B
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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
- B01D53/86—Catalytic processes
- B01D53/864—Removing carbon monoxide or hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
- B01D2251/304—Alkali metal compounds of sodium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
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- B01D2251/604—Hydroxides
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- 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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Abstract
The invention discloses an industrial carbon monoxide waste gas treatment device, which comprises: a carbon monoxide converter, comprising: the device comprises a vertically arranged shell, a first partition plate and a second partition plate, wherein the first partition plate and the second partition plate are horizontally arranged in the shell and divide the shell into a mixing chamber, a first-stage conversion chamber and a second-stage conversion chamber from bottom to top; a carbon dioxide absorber in communication with the carbon monoxide converter, the carbon dioxide absorber comprising: the device comprises a body, a main air outlet pipe, a plurality of branch air outlet pipes, a liquid outlet pipe and a liquid removal wire mesh; an active carbon purifier. The invention can completely convert carbon monoxide into carbon dioxide and absorb the carbon dioxide, thereby fundamentally solving the problem of carbon monoxide waste gas pollution.
Description
Technical Field
The present invention relates to an exhaust gas treatment device. More specifically, the invention relates to an industrial carbon monoxide waste gas treatment device, and belongs to the technical field of waste gas treatment.
Background
Generally, when the carbon-containing substance is not completely combusted, toxic and harmful carbon monoxide gas is generated, and the carbon monoxide gas is directly discharged to the atmosphere, so that the atmosphere is seriously polluted. Currently, there are many operations in industry that generate carbon monoxide gas, such as: the processes of iron making, coking, casting, calcining, garbage disposal and the like all generate carbon monoxide gas. The environmental health department of China stipulates: the daily average concentration of carbon monoxide gas in the air should not exceed 0.8ppm, and the maximum allowable concentration in one measurement is 2.4 ppm. Most of the existing treatment methods in industry discharge carbon monoxide waste gas to high altitude through a chimney to dilute the concentration of the carbon monoxide gas, so that the chimney can be seen everywhere in a factory, and dense smoke is often discharged from the chimney. The treatment mode can only treat the symptoms, but not the root causes, and in the past, the carbon monoxide gas in the air is always overproof, and the atmospheric environment is seriously influenced. Therefore, only toxic and harmful carbon monoxide gas is converted into nontoxic and harmless carbon dioxide gas, but simultaneously, a large amount of carbon dioxide gas is discharged, greenhouse effect is caused, and the atmosphere is still polluted.
Disclosure of Invention
An object of the present invention is to provide an industrial carbon monoxide waste gas treatment apparatus which can convert toxic and harmful carbon monoxide gas into non-toxic and harmless carbon dioxide gas, and also can absorb and treat the carbon dioxide gas, thereby preventing the carbon dioxide gas from being discharged to the atmosphere, thereby fundamentally solving the problem of carbon monoxide waste gas pollution.
To achieve these objects and other advantages and in accordance with the purpose of the invention, there is provided an industrial carbon monoxide off-gas treatment device comprising:
a carbon monoxide converter, comprising: the casing of vertical setting, from bottom to top in proper order the level set up first division board and second division board in the casing, wherein, casing lower part lateral wall is equipped with waste gas import, the bottom is close to waste gas import is equipped with air intlet, the top is equipped with the transformation gas export, first division board with the second division board will mixing chamber, one-level conversion room and second grade conversion room from bottom to top are separated into to the casing, waste gas import with air intlet all is located in the mixing chamber, vertical equidistant multiunit baffle that is equipped with in the mixing chamber, every group baffle all include preceding sub-baffle and back sub-baffle, and preceding sub-baffle and back sub-baffle distribute in proper order along the air current direction, the base and the both sides limit of preceding sub-baffle with inside wall rigid coupling, the topside of casing with the lower surface formation air outlet channel of first division board, the topside of back sub-baffle with the lower surface rigid coupling of first, Two side edges are fixedly connected with the inner side wall of the shell, the bottom edge of the shell and the bottom of the shell form an air outlet channel, the air inlet is positioned at the rear part of a front sub baffle plate closest to the waste gas inlet, a rear sub baffle plate farthest away from the waste gas inlet and a part close to the inner wall of the shell are provided with a mixed gas outlet, the upper surface of the first partition plate is fixedly connected with a first heater, a plurality of groups of first-stage reaction plates are arranged in the first-stage conversion chamber at equal intervals along the height direction of the shell in parallel, each group of first-stage reaction plates comprises an upper reaction plate and a lower reaction plate, the upper reaction plate and the lower reaction plate are fixedly connected with the inner side wall of the shell, the free ends of the upper reaction plate and the lower reaction plate are higher than the fixed connection end, and the lower surfaces of the upper reaction plate and the lower reaction plate are fixedly, the lower surfaces of the upper reaction sub-plate and the lower reaction sub-plate, which are not fixedly connected with the convex blocks, and the outer surfaces of the convex blocks are coated with carbon monoxide oxidation catalysts, a plurality of gas distribution pipes and a plurality of secondary reaction pipes are arranged in the secondary conversion chamber, each gas distribution pipe is horizontally and fixedly connected with the inner side wall of the shell, the gas distribution pipes are positioned on the same horizontal plane and distributed at equal intervals, two ends of each gas distribution pipe are sealed, the middle part of each gas distribution pipe is communicated with the primary conversion chamber, the upper surface of each gas distribution pipe is communicated with a plurality of secondary reaction pipes at equal intervals along the length direction of the gas distribution pipe, each secondary reaction pipe is S-shaped, the bottom ends of the secondary reaction pipes are communicated with the gas distribution pipes, the top ends of the secondary reaction pipes are upwards discharged, each secondary reaction pipe is internally provided with a through grid-shaped channel;
a carbon dioxide absorber in communication with the carbon monoxide converter, the carbon dioxide absorber comprising: the device comprises a body, a main air outlet pipe, a plurality of branched air pipes, a liquid outlet pipe and a liquid removing screen, wherein the main air outlet pipe is vertically arranged in the middle of the body, the branched air pipes are horizontally and fixedly connected from bottom to top on the inner side wall of the body, the bottom of the body is in an inverted cone shape, the side wall of the lower part of the body is provided with a converted air inlet, the top of the body is provided with a first purified air outlet, the center of the bottom of the body is provided with a liquid outlet, the converted air inlet is communicated with the converted air outlet, the bottom of the main air outlet pipe is communicated with the converted air inlet, the top of the main air outlet pipe is sealed, the branched air pipes are distributed at equal intervals along the height direction of the main air outlet pipe, the middle of each branched air pipe is communicated with the main air outlet pipe, the bottom of each branched air pipe is uniformly and fixedly connected with a plurality of air outlet nozzles along the length direction of each air outlet nozzle, the, the top of the liquid outlet pipe is communicated with a sodium hydroxide solution inlet pipe, the bottom of the liquid outlet pipe is uniformly and fixedly connected with a plurality of liquid outlet nozzles along the length direction of the liquid outlet pipe, the liquid outlet direction of each liquid outlet nozzle faces downwards, the lower surface of the liquid removing wire mesh is vertically and fixedly connected with a plurality of liquid guide rods, and the bottom of each liquid guide rod is in an inverted cone shape;
an activated carbon purifier in communication with the first purified gas outlet.
Preferably, the activated carbon purifier includes: shell, level set up a plurality of activated carbon layers in the shell, the bottom of shell is equipped with first purification gas import, the top is equipped with the second and purifies the gas outlet, first purification gas import with first purification gas outlet intercommunication, a plurality of activated carbon layers are followed the equidistant setting of direction of height of shell, and the thickness on every activated carbon layer is 8 mm.
Preferably, the sodium hydroxide solution inlet pipe is communicated with a sodium hydroxide solution storage tank, and the liquid outlet is communicated with a liquid collecting tank.
Preferably, the thickness of the liquid removal screen is 20 mm.
Preferably, the grid-shaped channels arranged in the secondary reaction tube are regular hexagon grid-shaped channels.
Preferably, the included angles between the upper reaction sub-plate and the lower reaction sub-plate and the horizontal plane are both 30 degrees.
The invention at least comprises the following beneficial effects:
(1) in the waste gas treatment device provided by the invention, a carbon monoxide converter can convert toxic and harmful carbon monoxide gas into non-toxic and harmless carbon dioxide gas, wherein, mixing of waste gas and air is firstly carried out in a mixing chamber to provide enough oxygen for oxidizing the carbon monoxide in the waste gas, a plurality of groups of baffles are arranged in the mixing chamber, so that the mixing time and the contact area of the waste gas and the air can be increased, the waste gas and the air are uniformly mixed, the preparation is prepared for the next conversion reaction, after the waste gas and the air are uniformly mixed, the mixed gas enters a primary conversion chamber through a mixed gas outlet, most of the carbon monoxide in the primary conversion chamber is oxidized into the carbon dioxide, wherein, a first heater can increase the temperature of the mixed gas, then the heated mixed gas gradually rises and is contacted with the surfaces of an upper reaction sub-plate and a lower reaction sub-plate under the action of a carbon monoxide, carbon monoxide is gradually converted into carbon dioxide, but along with the continuous progress of the reaction, the concentration of carbon monoxide in the mixed gas is gradually reduced, and the concentration of oxygen is also gradually reduced, so that the conversion rate is also reduced, in order to accelerate the conversion rate, the carbon monoxide is completely converted into the carbon dioxide, a secondary reaction tube is also arranged, and a grid-shaped channel is arranged in the secondary reaction tube, so that the contact area of the carbon monoxide and the oxygen can be greatly increased, and the reaction temperature can be increased by a second heater, so that the residual carbon monoxide in the waste gas is also completely converted into the carbon dioxide, and the toxic carbon monoxide gas is fully removed.
(2) The invention provides a waste gas treatment device, wherein a carbon dioxide absorber can absorb carbon dioxide gas obtained after conversion, and prevent the carbon dioxide from directly discharging to the atmosphere to pollute the environment, wherein a plurality of separation gas pipes can separate the converted gas from a carbon monoxide converter into a plurality of gas flows, a plurality of liquid outlet nozzles on a liquid outlet pipe can separate sodium hydroxide solution into a plurality of liquid flows, so that the contact area between the converted gas and the sodium hydroxide solution is increased, the carbon dioxide gas in the converted gas can be fully absorbed, the contact area between the converted gas and the sodium hydroxide solution can be further increased by a plurality of liquid separation plates to ensure that the carbon dioxide gas can be fully absorbed, the carbon dioxide in the converted gas flows out from a purified gas outlet at the top after being absorbed, but the sodium hydroxide solution is entrained during flowing out, and the provided liquid removal silk screen can intercept the liquid entrained in the converted gas, avoiding the liquid being carried out.
(3) The waste gas treatment device provided by the invention can completely convert toxic carbon monoxide gas into nontoxic carbon dioxide gas, and can absorb and treat the converted carbon dioxide gas, thereby avoiding the direct emission of the carbon dioxide gas to the atmosphere to cause greenhouse effect and further fundamentally solving the problem of carbon monoxide waste gas pollution.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic structural diagram of an industrial carbon monoxide waste gas treatment device according to one embodiment of the present invention;
FIG. 2 is a radial cross-sectional view of a secondary reaction tube according to one embodiment of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 and 2, the present invention provides an industrial carbon monoxide waste gas treatment apparatus, including:
a carbon monoxide converter 1 comprising: the device comprises a vertically arranged shell 2, a first partition plate 3 and a second partition plate 4 which are sequentially and horizontally arranged in the shell 2 from bottom to top, wherein the side wall of the lower part of the shell 2 is provided with a waste gas inlet 5, the bottom of the shell is close to the waste gas inlet 5 and is provided with an air inlet 6, the top of the shell is provided with a converted gas outlet 7, the shell 2 is divided into a mixing chamber, a primary conversion chamber and a secondary conversion chamber from bottom to top by the first partition plate 3 and the second partition plate 4, the waste gas inlet 5 and the air inlet 6 are both positioned in the mixing chamber, a plurality of groups of baffles are vertically arranged in the mixing chamber at equal intervals, each group of baffles comprises a front sub baffle 8 and a rear sub baffle 9, the front sub baffle 8 and the rear sub baffle 9 are sequentially distributed along the airflow direction, the bottom edge and two side edges of the front sub baffle 8 are fixedly connected with the inner side wall of the shell 2, the top edge of the rear sub-baffle 9 is fixedly connected with the lower surface of the first separating plate 3, the two side edges are fixedly connected with the inner side wall of the shell 2, the bottom edge of the rear sub-baffle is fixedly connected with the bottom of the shell 2 to form an air outlet channel, the air inlet 6 is positioned at the rear of the air flow of the front sub-baffle 8 closest to the waste gas inlet 5, the multiple groups of baffles can increase the mixing time and the contact area of the waste gas and the air so as to fully mix the waste gas and the air, and prepare for the next conversion reaction, a mixed gas outlet 10 is arranged at the part between the rear sub-baffle 9 farthest away from the waste gas inlet 5 and the inner wall of the shell 2 on the first separating plate 3, a first heater 11 is fixedly connected with the upper surface of the first separating plate 3 and used for heating the mixed gas and improving the rate of converting carbon monoxide into carbon dioxide, and multiple groups of first-stage reaction, each group of first-stage reaction plates comprises an upper reaction sub plate 12 and a lower reaction sub plate 13, the upper reaction sub plate 12 and the lower reaction sub plate 13 are fixedly connected with the inner side wall of the shell 2, the free ends of the upper reaction sub plate 12 and the lower reaction sub plate 13 form an air outlet channel, the free ends of the upper reaction sub plate 12 and the lower reaction sub plate 13 are higher than the fixed end, as the air goes upwards, the upper reaction sub plate 12 and the lower reaction sub plate 13 are arranged in an inclined upward state to reduce the resistance of the air flowing through, the lower surfaces of the upper reaction sub plate 12 and the lower reaction sub plate 13 are fixedly connected with a plurality of hemispherical convex blocks, the parts of the lower surfaces of the upper reaction sub plate 12 and the lower reaction sub plate 13 which are not fixedly connected with the convex blocks and the outer surfaces of the convex blocks are coated with carbon monoxide oxidation catalysts, the convex blocks can increase the contact area of the carbon monoxide and the carbon monoxide, each gas distribution pipe 14 is horizontally and fixedly connected with the inner side wall of the shell 2, the gas distribution pipes 14 are located on the same horizontal plane and distributed at equal intervals, two ends of each gas distribution pipe 14 are sealed, the middle part of each gas distribution pipe is communicated with the primary conversion chamber, the upper surface of each gas distribution pipe 14 is communicated with a plurality of secondary reaction pipes 15 at equal intervals along the length direction of the gas distribution pipe, each secondary reaction pipe 15 is S-shaped, the bottom end of each secondary reaction pipe 15 is communicated with the gas distribution pipe 14, the top end of each secondary reaction pipe is upwards exhausted, a through grid-shaped channel is arranged in each secondary reaction pipe 15, the inner wall of each channel is coated with a carbon monoxide oxidation catalyst, and the inner side wall of the secondary conversion chamber is fixedly connected with; because the concentration of the carbon monoxide gas and the oxygen gas in the mixed gas is gradually reduced along with the continuous progress of the reaction, the reaction rate is also reduced, the mixed gas after the reaction in the primary conversion chamber is divided into a plurality of gas by arranging a plurality of gas distributing pipes 14 and a plurality of secondary reaction pipes 15, and meanwhile, a through grid-shaped channel is arranged in the secondary reaction pipe 15, so that the contact area of the carbon monoxide gas and the oxygen gas in the secondary conversion chamber is greatly increased, the reaction rate is accelerated, the carbon monoxide gas can be fully converted into the carbon dioxide gas, and the second heater 16 can increase the reaction temperature and further accelerate the reaction rate, wherein the carbon monoxide oxidation catalyst used is a noble metal catalyst with a very good oxidation effect, such as platinum, palladium, gold and the like, and the specific examples are as follows: a: the carbon monoxide gas can be completely oxidized into the carbon dioxide gas at 80 ℃ by using a Pt-Au/TiO2 catalyst; b: the Pd/CeO2-TiO2 catalyst is used, and carbon monoxide gas can be completely oxidized into carbon dioxide gas at 54 ℃; c: the carbon monoxide gas can be completely oxidized into the carbon dioxide gas at 30 ℃ by using an Au/TiO2 catalyst;
a carbon dioxide absorber 17, which is communicated with the carbon monoxide converter 1, and is used for absorbing carbon dioxide gas obtained after conversion, preventing carbon dioxide from directly discharging to the atmosphere and polluting the environment, wherein the carbon dioxide absorber 17 comprises: the device comprises a body 18 which is vertically arranged, a main gas outlet pipe 19 which is vertically arranged in the middle of the body 18, a plurality of branch gas outlet pipes 20 which are horizontally and fixedly connected with the inner side wall of the body 18 from bottom to top, a liquid outlet pipe 21 and a liquid removing screen 22, wherein the bottom of the body 18 is in an inverted cone shape, the shape is convenient for the solution after reaction to be quickly discharged from a liquid outlet 25, the side wall of the lower part of the body 18 is provided with a converted gas inlet 23, the top of the body is provided with a first purified gas outlet 24, the center of the bottom of the body is provided with the liquid outlet 25, the converted gas inlet 23 is communicated with the converted gas outlet 7, the bottom of the main gas outlet pipe 19 is communicated with the converted gas inlet 23, the top of the main gas outlet pipe is sealed, the plurality of branch gas outlet pipes 20 are distributed at equal intervals along the height direction of the main gas outlet pipe 19, the middle of each branch gas outlet pipe, the gas outlet direction of each gas outlet nozzle faces downwards, the converted gas from the carbon monoxide converter 1 is divided into a plurality of gas flows through a plurality of gas outlet pipes 20 to increase the contact area of the gas and the sodium hydroxide solution, a liquid separating plate 26 is horizontally arranged below each gas outlet pipe 20, a plurality of liquid outlet holes are formed in each liquid separating plate 26 in a penetrating manner, the contact area of the converted gas and the sodium hydroxide solution can be further increased through the plurality of liquid separating plates 26 to ensure that the carbon dioxide gas can be fully absorbed, the top of each liquid outlet pipe 21 is communicated with a sodium hydroxide solution inlet pipe, the bottom of each liquid outlet pipe is uniformly and fixedly connected with a plurality of liquid outlet nozzles along the length direction of the liquid outlet pipe, the liquid outlet direction of each liquid outlet nozzle faces downwards to divide the sodium hydroxide solution into a plurality of liquid flows to react with the plurality of converted gas flows, so that the contact area of the converted gas and the sodium hydroxide solution is greatly increased to ensure that the carbon dioxide gas, a plurality of liquid guide rods 27 are vertically and fixedly connected to the lower surface of the liquid removing screen 22, and the bottom of each liquid guide rod 27 is in an inverted cone shape; the liquid removal screen 22 is used for intercepting sodium hydroxide solution carried by the effluent gas, and the plurality of liquid guide rods 27 can enable the intercepted liquid to fall quickly;
an activated carbon purifier 28 in communication with the first purified gas outlet 24. The activated carbon purifier 28 is used to absorb toxic and harmful gases that may be contained in the gas flowing out of the carbon dioxide absorber 17, ensuring that the gas finally discharged to the atmosphere is non-toxic and harmless.
In the technical scheme, when in use, waste gas to be treated is introduced from a waste gas inlet 5, air is introduced from an air inlet 6 in proportion, the waste gas and the air are mixed in a mixing chamber, then flow out from a mixed gas outlet 10 to enter a primary conversion chamber, then gradually rise to contact with carbon monoxide oxidation catalysts on an upper reaction daughter board 12 and a lower reaction daughter board 13, carbon monoxide in the waste gas is oxidized into carbon dioxide, then enter a secondary conversion chamber, flow into each secondary reaction pipe 15 through a gas distributing pipe 14 to completely oxidize the carbon monoxide in the waste gas into the carbon dioxide, finally flow out from a converted gas outlet 7 to enter a carbon dioxide absorber 17, the carbon dioxide in the converted gas reacts with a sodium hydroxide solution to generate sodium bicarbonate to remove the carbon dioxide in the converted gas, and after absorption, the gas flows out from a first purified gas outlet 24, the carbon monoxide gas enters an activated carbon purifier 28, toxic and harmful gases possibly existing in the gas are removed, the gas is finally discharged to the atmosphere, the sodium hydroxide solution after reaction flows out from a liquid outlet 25, and the whole waste gas treatment process is finally completed.
In another aspect, the activated carbon purifier 28 includes: the shell 29, the level sets up a plurality of activated carbon layers 30 in the shell 29, the bottom of shell 29 is equipped with first purified gas import 31, the top is equipped with second purified gas export 32, first purified gas import 31 with first purified gas export 24 intercommunication, a plurality of activated carbon layers 30 are followed the equidistant setting of direction of height of shell 29, and the thickness of every activated carbon layer 30 is 8 mm. The plurality of activated carbon layers 30 can sufficiently absorb toxic and harmful gases possibly contained in the gas flowing out from the carbon dioxide absorber 17, ensure the purity of the gas finally discharged to the atmosphere, and when the thickness is set to be 8mm, the manufacturing cost can be reduced as much as possible under the condition of meeting the use requirement.
In another technical scheme, the sodium hydroxide solution inlet pipe is communicated with a sodium hydroxide solution storage tank, and the liquid outlet 25 is communicated with a liquid collecting tank. The sodium hydroxide solution storage tank can supply sodium hydroxide solution for the carbon dioxide absorber 17, so that the carbon dioxide absorber 17 can completely absorb carbon dioxide gas, and the liquid collecting tank can collect the reacted sodium hydroxide solution for other operations, so that resources are saved.
In another embodiment, the liquid removal screen 22 has a thickness of 20 mm. When the thickness is set to 20mm, the manufacturing cost of the device can be reduced when the liquid removing screen 22 meets the use requirement.
In another technical scheme, the grid-shaped channels arranged in the secondary reaction tube 15 are regular hexagon grid-shaped channels. The regular hexagon is in a common polygonal shape, is easy to process and is beneficial to reducing the manufacturing cost.
In another technical scheme, the included angles between the upper reaction sub-plate 12 and the lower reaction sub-plate 13 and the horizontal plane are both 30 degrees. The inclined angle is set to be 30 degrees, so that the rising resistance of the mixed gas is minimum, and the reaction conversion effect is best.
The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the industrial carbon monoxide off-gas treatment apparatus of the present invention will be apparent to those skilled in the art.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (6)
1. Industrial carbon monoxide waste gas treatment device, characterized by, includes:
a carbon monoxide converter, comprising: the casing of vertical setting, from bottom to top in proper order the level set up first division board and second division board in the casing, wherein, casing lower part lateral wall is equipped with waste gas import, the bottom is close to waste gas import is equipped with air intlet, the top is equipped with the transformation gas export, first division board with the second division board will mixing chamber, one-level conversion room and second grade conversion room from bottom to top are separated into to the casing, waste gas import with air intlet all is located in the mixing chamber, vertical equidistant multiunit baffle that is equipped with in the mixing chamber, every group baffle all include preceding sub-baffle and back sub-baffle, and preceding sub-baffle and back sub-baffle distribute in proper order along the air current direction, the base and the both sides limit of preceding sub-baffle with inside wall rigid coupling, the topside of casing with the lower surface formation air outlet channel of first division board, the topside of back sub-baffle with the lower surface rigid coupling of first, Two side edges are fixedly connected with the inner side wall of the shell, the bottom edge of the shell and the bottom of the shell form an air outlet channel, the air inlet is positioned at the rear part of a front sub baffle plate closest to the waste gas inlet, a rear sub baffle plate farthest away from the waste gas inlet and a part close to the inner wall of the shell are provided with a mixed gas outlet, the upper surface of the first partition plate is fixedly connected with a first heater, a plurality of groups of first-stage reaction plates are arranged in the first-stage conversion chamber at equal intervals along the height direction of the shell in parallel, each group of first-stage reaction plates comprises an upper reaction plate and a lower reaction plate, the upper reaction plate and the lower reaction plate are fixedly connected with the inner side wall of the shell, the free ends of the upper reaction plate and the lower reaction plate are higher than the fixed connection end, and the lower surfaces of the upper reaction plate and the lower reaction plate are fixedly, the lower surfaces of the upper reaction sub-plate and the lower reaction sub-plate, which are not fixedly connected with the convex blocks, and the outer surfaces of the convex blocks are coated with carbon monoxide oxidation catalysts, a plurality of gas distribution pipes and a plurality of secondary reaction pipes are arranged in the secondary conversion chamber, each gas distribution pipe is horizontally and fixedly connected with the inner side wall of the shell, the gas distribution pipes are positioned on the same horizontal plane and distributed at equal intervals, two ends of each gas distribution pipe are sealed, the middle part of each gas distribution pipe is communicated with the primary conversion chamber, the upper surface of each gas distribution pipe is communicated with a plurality of secondary reaction pipes at equal intervals along the length direction of the gas distribution pipe, each secondary reaction pipe is S-shaped, the bottom ends of the secondary reaction pipes are communicated with the gas distribution pipes, the top ends of the secondary reaction pipes are upwards discharged, each secondary reaction pipe is internally provided with a through grid-shaped channel;
a carbon dioxide absorber in communication with the carbon monoxide converter, the carbon dioxide absorber comprising: the device comprises a body, a main air outlet pipe, a plurality of branched air pipes, a liquid outlet pipe and a liquid removing screen, wherein the main air outlet pipe is vertically arranged in the middle of the body, the branched air pipes are horizontally and fixedly connected from bottom to top on the inner side wall of the body, the bottom of the body is in an inverted cone shape, the side wall of the lower part of the body is provided with a converted air inlet, the top of the body is provided with a first purified air outlet, the center of the bottom of the body is provided with a liquid outlet, the converted air inlet is communicated with the converted air outlet, the bottom of the main air outlet pipe is communicated with the converted air inlet, the top of the main air outlet pipe is sealed, the branched air pipes are distributed at equal intervals along the height direction of the main air outlet pipe, the middle of each branched air pipe is communicated with the main air outlet pipe, the bottom of each branched air pipe is uniformly and fixedly connected with a plurality of air outlet nozzles along the length direction of each air outlet nozzle, the, the top of the liquid outlet pipe is communicated with a sodium hydroxide solution inlet pipe, the bottom of the liquid outlet pipe is uniformly and fixedly connected with a plurality of liquid outlet nozzles along the length direction of the liquid outlet pipe, the liquid outlet direction of each liquid outlet nozzle faces downwards, the lower surface of the liquid removing wire mesh is vertically and fixedly connected with a plurality of liquid guide rods, and the bottom of each liquid guide rod is in an inverted cone shape;
an activated carbon purifier in communication with the first purified gas outlet.
2. The industrial carbon monoxide off-gas treatment device according to claim 1, wherein the activated carbon purifier comprises: shell, level set up a plurality of activated carbon layers in the shell, the bottom of shell is equipped with first purification gas import, the top is equipped with the second and purifies the gas outlet, first purification gas import with first purification gas outlet intercommunication, a plurality of activated carbon layers are followed the equidistant setting of direction of height of shell, and the thickness on every activated carbon layer is 8 mm.
3. The industrial carbon monoxide waste gas treatment device as claimed in claim 1, wherein the sodium hydroxide solution inlet pipe is communicated with a sodium hydroxide solution storage tank, and the liquid outlet is communicated with a liquid collecting tank.
4. The industrial carbon monoxide waste gas treatment apparatus as claimed in claim 1, wherein the thickness of the liquid removal wire net is 20 mm.
5. The industrial carbon monoxide waste gas treatment device as claimed in claim 1, wherein the grid-shaped channels provided in the secondary reaction tube are regular hexagonal grid-shaped channels.
6. The industrial carbon monoxide waste gas treatment device as claimed in claim 1, wherein the upper and lower reaction sub-plates are each inclined at an angle of 30 ° to the horizontal plane.
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