CN113198316A - A clearance system for exhaust gas desulfurization dechlorination - Google Patents
A clearance system for exhaust gas desulfurization dechlorination Download PDFInfo
- Publication number
- CN113198316A CN113198316A CN202110487204.2A CN202110487204A CN113198316A CN 113198316 A CN113198316 A CN 113198316A CN 202110487204 A CN202110487204 A CN 202110487204A CN 113198316 A CN113198316 A CN 113198316A
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- injection
- tower
- injection port
- tower body
- air holes
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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
- B01D53/81—Solid phase processes
- B01D53/83—Solid phase processes with moving reactants
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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
- B01D53/52—Hydrogen sulfide
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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
- B01D53/68—Halogens or halogen compounds
- B01D53/685—Halogens or halogen compounds by treating the gases with solids
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (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 discloses a clearing system for waste gas desulfurization and dechlorination, which structurally comprises a first tower body, wherein a jet orifice for jetting nano-base powder is arranged on the first tower body, the clearing system structurally comprises a first tower body and a second tower body which are respectively used for desulfurization and dechlorination, the interiors of the first tower body and the second tower body are mutually communicated, and the clearing system is characterized in that: the structure of the tower also comprises a three-way type injection pipe body, the first tower body is provided with an injection port for injecting nano-base powder, the injection port comprises a first injection port and a second injection port, the three-way type injection pipe body is respectively communicated with the first injection port and the second injection port, and a plurality of layers of tower plates for placing dechlorination agents are sequentially arranged inside the second tower body from top to bottom.
Description
The technical field is as follows:
the invention relates to the technical field of catalyst production, in particular to a removing system for desulfurization and dechlorination of waste gas.
Background art:
during the reduction reaction production process of the reduction catalyst, sulfur, chlorine and other components contained in the catalyst react with hydrogen at high temperature in the presence of hydrogen to generate hydrogen sulfide and hydrogen chloride gas, so that the circulating gas of the reduction reaction system forms mixed gas containing hydrogen sulfide and hydrogen chloride.
At present, in order to improve the desulfurization and dechlorination effects in the exhaust gas, a mode of combining dry desulfurization and dry dechlorination is generally adopted to remove the exhaust gas, wherein 1, the dry desulfurization generally adopts nano-based ultrafine powder, the nano-based ultrafine powder is sprayed into the desulfurization tower to be fully mixed with sulfur element, so as to remove the sulfur in the sulfur element, but in the spraying process of the nano-based ultrafine powder, the nano-based ultrafine powder is easy to be blocked in the middle, the subsequent spraying of the nano-based ultrafine powder is influenced, and after the nano-based ultrafine powder is sprayed into the desulfurization tower, the nano-based ultrafine powder is easy to be accumulated in one place, so that the reaction between the nano-based ultrafine powder and the sulfur element is not full, the desulfurization effect of the desulfurization tower is influenced, 2, the dry dechlorination generally adopts a mode of enabling chlorine element to pass through dechlorination agent, however, in the process of adsorbing the chlorine element by the dechlorination agent, the contact time between the chlorine element and the dechlorination agent is short, it is difficult to sufficiently remove chlorine in the exhaust gas.
The invention content is as follows:
it is an object of the present invention to provide a clean-up system for desulfurization and dechlorination of exhaust gases that solves one or more of the above-mentioned problems of the prior art.
In order to solve the technical problems, the invention provides a clearing system for waste gas desulfurization and dechlorination, which structurally comprises a first tower body and a second tower body which are used for desulfurization and dechlorination respectively, wherein the first tower body and the second tower body are communicated with each other, and the clearing system is characterized in that: the structure of the tower body further comprises a three-way type injection pipe body, the first tower body is provided with injection ports for injecting nano-base powder, the injection ports comprise a first injection port and a second injection port, the three-way type injection pipe body is respectively communicated with the first injection port and the second injection port, the three-way type injection pipe body comprises an injection main pipe, two injection branch pipes and a middle injection body, the middle injection body is a hollow cavity, two sides of the middle injection body are provided with symmetrical pressure plates, the extension directions of the pressure plates are inclined downwards, the extension points of the pressure plates are intersected below the middle injection body, the bottom of the middle injection body is provided with a groove which is sunken downwards, the injection main pipe is communicated above the middle injection body, the two injection branch pipes are symmetrically positioned at two sides of the groove and are communicated with the middle injection body, openings of the two injection branch pipes are respectively and correspondingly positioned at the bottoms of the two pressure plates, the second injection ports communicate.
Furthermore, the two spraying branch pipes are arc-shaped pipes, and the concave directions of the arcs of the spraying branch pipes are outward.
Furthermore, a pressure ball is arranged in the groove and is an elastic ball body.
Furthermore, the first injection ports and the second injection ports are respectively provided with a conical injection nozzle.
Furthermore, a plurality of layers of tower plates for placing dechlorinating agents are sequentially arranged inside the second tower body from top to bottom, a hollow gas mixing cavity is formed inside each tower plate, a plurality of upper air holes communicated with the gas mixing cavity are formed in the upper surface of each tower plate, a plurality of lower air holes communicated with the gas mixing cavity are formed in the lower surface of each tower plate, and the aperture of each lower air hole is smaller than that of each upper air hole.
Furthermore, a cushion layer is laid on the surface of the tower plate, and the cushion layer is made of glass cloth or non-woven fabric or a fine-pore steel wire mesh.
Furthermore, the upper air holes are located above the lower air holes one by one, spiral pipes are connected between the upper air holes and the lower air holes, and the spiral pipes are fixed inside the gas mixing cavity.
The invention has the beneficial effects that:
1. the invention provides a removing system for desulfurization and dechlorination of waste gas, which disperses nanometer-based ultrafine powder sprayed into the first tower body as much as possible through a first spray opening and a second spray opening, improves the desulfurization effect of a desulfurization tower,
2. the invention provides a cleaning system for desulfurization and dechlorination of waste gas, wherein an intermediate injection body ensures the smoothness of the injection of nano-base ultrafine powder in a three-way injection pipe body and avoids the accumulation of the nano-base ultrafine powder in the three-way injection pipe body, thereby influencing the subsequent injection of the nano-base ultrafine powder.
3. The invention provides a removing system for waste gas desulfurization and dechlorination, when waste gas enters a gas mixing cavity in a tower plate through a dechlorinating agent, the speed of the waste gas discharged from a lower air hole is smaller than the speed of the waste gas entering the gas mixing cavity from an upper air hole due to the fact that the aperture of the lower air hole is smaller than that of the upper air hole, therefore, the waste gas can stay in the gas mixing cavity for a short time, the flow rate of the waste gas entering the gas mixing cavity from the upper air hole is slowed due to the short stay, the contact time between the waste gas and the dechlorinating agent is prolonged, and the removing efficiency of chlorine elements in the waste gas is improved.
Description of the drawings:
fig. 1 is a front elevational view of the present invention.
FIG. 2 is a sectional view of the surface of a tray of the present invention.
The specific implementation mode is as follows:
for the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
In the prior art, the dry desulfurization of sulfur element is realized by injecting nano-based ultrafine powder into a desulfurization tower to be fully mixed with the sulfur element, so that the sulfur in the sulfur element is removed.
Referring to fig. 1 to 2, an embodiment of the present invention is shown, which comprises a first tower 1 and a second tower 200 for desulfurization and dechlorination, respectively, the first tower 1 and the second tower 200 are connected to each other, the structure further comprises a three-way type injection pipe 3, the first tower 1 is provided with an injection port 2 for injecting nano-powder, the injection port 2 comprises a first injection port 21 and a second injection port 22, and the three-way type injection pipe 3 is respectively connected to the first injection port 21 and the second injection port 22.
In the invention, in order to fully disperse the nano-ultrafine powder injected into the first tower body 1 and improve the reactivity between the nano-ultrafine powder and the sulfur element, the first tower body 1 is respectively provided with the first injection port 21 and the second injection port 22, and the nano-ultrafine powder is synchronously injected into the first tower body 1 from the first injection port 21 and the second injection port 22 through the three-way injection pipe body 3, so that the nano-ultrafine powder entering the first tower body 1 is dispersed as much as possible, and the reactivity between the nano-ultrafine powder and the sulfur element is improved.
In the invention, the waste gas enters the first tower body 1, the waste gas is desulfurized by utilizing the sprayed nano-ultrafine powder, in the process of spraying the nano-ultrafine powder to the first tower body 1, in order to ensure the smoothness of the nano-ultrafine powder sprayed in the three-way type spraying pipe body 3, the three-way type spraying pipe body 3 comprises a spraying main pipe 31, two spraying branch pipes 32 and a middle spraying body 33, the middle spraying body 33 is a hollow cavity, symmetrical pressure plates 4 are arranged on two sides of the middle spraying body 33, the extending direction of the pressure plates 4 is inclined downwards, the extending points of the two spraying main pipe and the middle spraying body are intersected below the middle spraying body 33, a groove 5 which is downwards concave is arranged at the bottom of the middle spraying body 33, the spraying main pipe 31 is communicated with the upper part of the middle spraying body 33, the two spraying branch pipes 32 are symmetrically positioned on two sides of the groove 5 and communicated with the middle spraying body 33, the openings of the two spraying branch pipes 32 are respectively correspondingly positioned at the bottoms of the two pressure plates 4, the bottoms of the two spraying branch pipes 32 are respectively communicated with the first spraying opening 21 and the second spraying opening 22, nano-base ultrafine powder is sprayed from the spraying main pipe 31 to enter the middle spraying body 33, the pressure plate 4 is positioned right above the spraying branch pipes 32, the sprayed nano-base ultrafine powder is blocked by the pressure plate 4 and quickly falls into the spraying branch pipes 32 right below, accumulation in the nano-base ultrafine powder spraying process is avoided, the smoothness of nano-base ultrafine powder circulation is ensured, the nano-base ultrafine powder sprayed to enter the spraying branch pipes 32 enters the first tower body 1 from the spraying branch pipes 32, meanwhile, the air pressure from the sprayed nano-base ultrafine powder is effectively buffered by the groove 5 at the bottom of the middle spraying body 33, and the smoothness of the nano-base ultrafine powder circulation is further improved.
In the present invention, the specific structure of the injection branch pipe 32 is preferably as follows: two above-mentioned injection is in charge of 32 and is the arc pipe, and the sunken orientation of injection in charge of 32 pitch arcs outwards, and the arc structure of injection in charge of 32 has improved and has received base superfine powder and in the inside circulation length of injection in charge of 32, has further relaxed the inside air pressure of three way type injection body 3, has guaranteed to receive smooth and easy of base superfine powder circulation.
In the present invention, preferably, the pressure ball 6 is disposed inside the groove 5, the pressure ball 6 is an elastic ball, and the elastic design of the pressure ball 6 further buffers the air flow pressure from the nano-ultrafine powder injection.
In the present invention, the conical spray nozzles 7 are provided at the first spray ports 21 and the second spray ports 22, and the conical spray nozzles 7 ensure uniformity of the nano-fine powder sprayed from the first spray ports 21 and the second spray ports 22 into the first tower body 1, respectively.
In the invention, as a preferable scheme, a plurality of layers of tower plates 8 for placing dechlorinating agents are sequentially arranged inside the second tower body 200 from top to bottom, a hollow gas mixing cavity 101 is formed inside each tower plate 8, a plurality of upper air holes 81 communicated with the gas mixing cavity 101 are formed in the upper surface of each tower plate 8, a plurality of lower air holes 82 communicated with the gas mixing cavity 101 are formed in the lower surface of each tower plate 8, and the aperture of each lower air hole 82 is smaller than that of each upper air hole 81.
In the invention, the desulfurized waste gas enters the second tower body 200, dechlorination is carried out on the waste gas by using dechlorinating agent when the waste gas passes through each layer of tower plate 8, and when the waste gas passes through the dechlorinating agent and enters the gas mixing cavity 101 in the tower plate 2, the speed of the waste gas discharged from the lower air holes 82 is less than the speed of the waste gas entering the gas mixing cavity 101 from the upper air holes 81 in view of the fact that the aperture of the lower air holes 82 is less than that of the upper air holes 81, so that the waste gas can temporarily stay in the gas mixing cavity 101, and the flow speed of the waste gas entering the gas mixing cavity 101 from the upper air holes 81 is reduced due to the temporary stay, thereby the contact time between the waste gas and the dechlorinating agent is prolonged, and the removal efficiency of chlorine elements in the waste gas is improved.
In the present invention, the surface of the tower plate 8 is laid with a mat layer 102, the mat layer 102 is made of glass cloth or non-woven fabric or fine mesh steel wire, and the mat layer 102 is used for holding the dechlorinating agent and preventing the dechlorinating agent from falling into the next tower plate 8.
In the invention, a plurality of upper air holes 81 are arranged above a plurality of lower air holes 82 one by one, spiral pipes 9 are connected between the upper air holes 81 and the lower air holes 82, and the spiral pipes 9 are fixed in the gas mixing cavity 9.
In the present invention, the design of the spiral tube 9 increases the flow time of the exhaust gas inside the gas mixing chamber 101, thereby further reducing the flow rate of the exhaust gas to the next layer, and thus increasing the contact time between the exhaust gas and the dechlorinating agent.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present 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 (7)
1. The utility model provides a clearance system for desulfurization dechlorination of waste gas, its structure includes first tower body (1) and second tower body (200) that are used for desulfurization, dechlorination respectively, first tower body (1) with the inside of second tower body (200) communicates each other, its characterized in that: the structure of the tower further comprises a three-way type injection pipe body (3), wherein the first tower body (1) is provided with an injection port (2) for injecting nano-base powder, the injection port (2) comprises a first injection port (21) and a second injection port (22), and the three-way type injection pipe body (3) is respectively communicated with the first injection port (21) and the second injection port (22);
the three-way type injection pipe body (3) comprises an injection main pipe (31), two injection branch pipes (32) and a middle injection body (33), the middle injection body (33) is a hollow cavity, symmetrical pressure plates (4) are arranged on two sides of the middle injection body (33), the extension directions of the two pressure plates (4) are inclined downwards, the extension points of the two pressure plates are intersected below the middle injection body (33), a groove (5) which is concave downwards is formed in the bottom of the middle injection body (33), the injection main pipe (31) is communicated above the middle injection body (33), the two injection branch pipes (32) are symmetrically positioned on two sides of the groove (5) and communicated with the middle injection body (33), openings of the two injection branch pipes (32) are respectively correspondingly positioned at the bottoms of the two pressure plates (4), and the bottoms of the two injection branch pipes (32) are respectively communicated with the first injection port (21), The second injection ports (22) communicate with each other.
2. The system of claim 1, wherein the system is configured to remove sulfur and chlorine from the flue gas by: two the injection is in charge of (32) and is the arc pipe, the sunken direction of injection branch pipe (32) pitch arc is outwards.
3. The system of claim 1, wherein the system is configured to remove sulfur and chlorine from the flue gas by: the pressure ball (6) is arranged in the groove (5), and the pressure ball (6) is an elastic ball body.
4. The system of claim 1, wherein the system is configured to remove sulfur and chlorine from the flue gas by: the first injection port (21) and the second injection port (22) are both provided with conical injection nozzles (7).
5. The system of claim 1, wherein the system is configured to remove sulfur and chlorine from the flue gas by: the second tower body (200) is internally provided with a plurality of layers of tower plates (8) for placing dechlorinating agents in sequence from top to bottom, a hollow gas mixing cavity (101) is formed inside each tower plate (8), a plurality of upper air holes (81) communicated with the gas mixing cavity (101) are formed in the upper surface of each tower plate (8), a plurality of lower air holes (82) communicated with the gas mixing cavity (101) are formed in the lower surface of each tower plate (8), and the aperture of each lower air hole (82) is smaller than that of each upper air hole (81).
6. The system of claim 5, wherein the system is characterized by: the surface of the tower plate (8) is paved with a cushion layer (102), and the cushion layer (102) is made of glass cloth, non-woven fabric or fine-mesh steel wire mesh.
7. The system of claim 5, wherein the system is characterized by: the upper air holes (81) are located above the lower air holes (82) one by one, spiral pipes (9) are connected between the upper air holes (81) and the lower air holes (82), and the spiral pipes (9) are fixed inside the gas mixing cavity (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110487204.2A CN113198316B (en) | 2021-05-05 | 2021-05-05 | A clearance system for exhaust gas desulfurization dechlorination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110487204.2A CN113198316B (en) | 2021-05-05 | 2021-05-05 | A clearance system for exhaust gas desulfurization dechlorination |
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| CN113198316A true CN113198316A (en) | 2021-08-03 |
| CN113198316B CN113198316B (en) | 2023-02-28 |
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| CN202110487204.2A Active CN113198316B (en) | 2021-05-05 | 2021-05-05 | A clearance system for exhaust gas desulfurization dechlorination |
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Citations (10)
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| CN1795965A (en) * | 2004-12-29 | 2006-07-05 | 清华大学 | Liquid column jet type stack gas desulfurization |
| AT501149A4 (en) * | 2005-03-24 | 2006-07-15 | Voest Alpine Ind Anlagen | Treating waste gas from sintering plant comprises injecting adsorbent against flow of gas at points upstream and/or downstream of widened section of waste gas channel |
| JP2006225948A (en) * | 2005-02-17 | 2006-08-31 | Raito Kogyo Co Ltd | Powder jetting device, its jetting method and construction method of underground structure making use thereof |
| CN2868395Y (en) * | 2005-06-09 | 2007-02-14 | 孙岳传 | Air purifying apparatus |
| CN101088581A (en) * | 2007-08-20 | 2007-12-19 | 丁家亮 | Poisonous waste treating method and special apparatus |
| CN207056584U (en) * | 2017-06-21 | 2018-03-02 | 南通金源催化剂有限公司 | The reduction of low temperature isomerization catalyst, chlorination integrated apparatus |
| CN111185468A (en) * | 2020-01-13 | 2020-05-22 | 苏州朝霞生物科技有限公司 | Can strengthen soil prosthetic devices of soil repair effect |
-
2021
- 2021-05-05 CN CN202110487204.2A patent/CN113198316B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0711627A (en) * | 1993-06-23 | 1995-01-13 | Nitto Techno Group:Kk | Powder jet stirring rod and usage thereof |
| JPH0986657A (en) * | 1995-09-25 | 1997-03-31 | Nkk Corp | Powder transport pipe strainer |
| JP2001017827A (en) * | 1999-07-08 | 2001-01-23 | Babcock Hitachi Kk | Double-chamber wet type flue gas desulfurization apparatus and method |
| CN1795965A (en) * | 2004-12-29 | 2006-07-05 | 清华大学 | Liquid column jet type stack gas desulfurization |
| JP2006225948A (en) * | 2005-02-17 | 2006-08-31 | Raito Kogyo Co Ltd | Powder jetting device, its jetting method and construction method of underground structure making use thereof |
| AT501149A4 (en) * | 2005-03-24 | 2006-07-15 | Voest Alpine Ind Anlagen | Treating waste gas from sintering plant comprises injecting adsorbent against flow of gas at points upstream and/or downstream of widened section of waste gas channel |
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| CN111185468A (en) * | 2020-01-13 | 2020-05-22 | 苏州朝霞生物科技有限公司 | Can strengthen soil prosthetic devices of soil repair effect |
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| Publication number | Publication date |
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| CN113198316B (en) | 2023-02-28 |
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