CN113058368A - Lead regeneration smelting tail gas seals desulfurization dust removal circulation system - Google Patents
Lead regeneration smelting tail gas seals desulfurization dust removal circulation system Download PDFInfo
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- CN113058368A CN113058368A CN202110460858.6A CN202110460858A CN113058368A CN 113058368 A CN113058368 A CN 113058368A CN 202110460858 A CN202110460858 A CN 202110460858A CN 113058368 A CN113058368 A CN 113058368A
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- Prior art keywords
- desulfurization
- dust removal
- tail gas
- spray
- case
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 80
- 230000023556 desulfurization Effects 0.000 title claims abstract description 80
- 239000000428 dust Substances 0.000 title claims abstract description 72
- 238000003723 Smelting Methods 0.000 title claims abstract description 23
- 230000008929 regeneration Effects 0.000 title description 3
- 238000011069 regeneration method Methods 0.000 title description 3
- 238000005507 spraying Methods 0.000 claims abstract description 15
- 239000007921 spray Substances 0.000 claims description 55
- 239000007789 gas Substances 0.000 claims description 50
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 22
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 230000003009 desulfurizing effect Effects 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 4
- 235000019738 Limestone Nutrition 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 241001417490 Sillaginidae Species 0.000 claims description 3
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 239000006028 limestone Substances 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- 239000003595 mist Substances 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- 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
-
- 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
- B01D53/75—Multi-step processes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (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)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a closed desulfurization and dust removal circulating system for secondary lead smelting tail gas, which comprises a dust removal component, a spraying component and a desulfurization component, wherein the dust removal component comprises a dust removal box and a plurality of dust removal filter screens, one side of the dust removal box is provided with an inlet, a tail gas inlet pipe is installed at the inlet, the other side of the dust removal box is provided with an outlet, the spraying component comprises a spraying box, a spraying pipe and a plurality of spraying heads, and the desulfurization component is arranged at one side of the spraying box.
Description
Technical Field
The invention relates to the technical field of tail gas treatment, in particular to a closed desulfurization and dust removal circulating system for secondary lead smelting tail gas.
Background
Lead dust and SO generated in the recovery smelting process of the lead-acid storage battery2、SO3And the disordered discharge of oxynitride has serious pollution, particularly relates to heavy metal lead, so that the national requirement on pollution treatment and environmental protection of smelting is very high, and most smelting enterprisesBy adopting the lime water desulfurization process, the desulfurization effect is not ideal and the dust removal effect is poor, so that improvement is needed.
Disclosure of Invention
The invention aims to provide a closed desulfurization and dust removal circulating system for secondary lead smelting tail gas, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a closed desulfurization and dust removal circulating system for secondary lead smelting tail gas comprises a dust removal assembly, a spraying assembly and a desulfurization assembly, wherein the dust removal assembly comprises a dust removal box and a plurality of dust removal filter screens, one side of the dust removal box is provided with an inlet, a tail gas inlet pipe is installed at the inlet, the other side of the dust removal box is provided with an outlet, and the dust removal filter screens are installed in an inner cavity of the dust removal box in a staggered manner;
the spray assembly comprises a spray box, a spray pipe and a plurality of spray heads, the spray box inlet and the dust removal box outlet are connected through a first pipeline, the spray pipe is installed at the top of the inner cavity of the spray box and is multiple, the spray heads are installed on the spray pipe at equal intervals, a recovery bin is arranged at the bottom of the spray box, and the desulfurization assembly is arranged on one side of the spray box.
Preferably, the closed desulfurization dust removal circulation system of secondary lead smelting tail gas that this application provided, wherein, desulfurization subassembly includes first desulfurization case and second desulfurization case, the first desulfurizer of first desulfurization case top installation drops into to fight, first desulfurization case with spray the case and pass through the second pipe connection, the second desulfurizer of second desulfurization case top installation drops into to fight, the second desulfurization case passes through first pipe connection with first desulfurization case, still install the blast pipe on the second desulfurization case.
Preferably, the application provides a lead recycling smelts tail gas and seals desulfurization dust removal circulation system, wherein, every the dust removal filter screen includes net frame, first active carbon filter screen, dust removal net and second active carbon filter screen are installed in the net frame in proper order.
Preferably, the application provides a lead regeneration smelts tail gas and seals desulfurization dust removal circulation system, wherein, every the shower head include the hemisphere shower nozzle, install the inlet tube on the hemisphere shower nozzle, a plurality of orifices of hemisphere shower nozzle surface equipartition.
Preferably, the closed desulfurization and dust removal circulating system for the secondary lead smelting tail gas, provided by the application, comprises a first desulfurizer feeding hopper and a second desulfurizer feeding hopper, wherein the first desulfurizer feeding hopper and the second desulfurizer feeding hopper are respectively fed with a desulfurizer, and the desulfurizer comprises, by weight, 20-30 parts of limestone, 4-10 parts of titanium dioxide, 4-10 parts of polyethylene glycol ester, 10-20 parts of hydrogen peroxide, 3-9 parts of sodium hypochlorite and 2-8 parts of magnesium oxide.
Preferably, the application provides a closed desulfurization and dust removal circulation system for secondary lead smelting tail gas, wherein the using method comprises the following steps:
A. the smelting tail gas is discharged into a dust removal box through a tail gas inlet pipe, and is absorbed and dedusted through a plurality of dedusting filter screens, and then the tail gas is discharged into a spraying box;
B. controlling the pump body in the external water tank to work, wherein spray water enters a plurality of spray headers through spray pipes, and the spray headers spray water mist to further settle the tail gas;
C. discharging the settled gas into a first desulfurization box through a pipeline, and putting a desulfurizing agent into a first desulfurizing agent throwing hopper to perform primary desulfurization treatment on the gas;
D. discharging the gas subjected to primary desulfurization into a second desulfurization box, and adding a desulfurizing agent into a second desulfurizing agent feeding hopper to perform secondary desulfurization treatment on the gas;
E. and discharging the gas subjected to secondary desulfurization into the atmosphere through an exhaust pipe.
Compared with the prior art, the invention has the beneficial effects that: the invention has novel structural design, can realize closed dust removal and desulfurization treatment on the smelting tail gas, realizes zero emission of pollutants to the atmosphere, and reduces the difficulty of flue gas treatment; and secondary desulfurization treatment is adopted, so that the desulfurization efficiency is further improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a dust removal filter screen according to the present invention;
FIG. 3 is a schematic view of a showerhead structure according to the present invention;
in the figure: the device comprises a dust removal box 1, a dust removal filter screen 2, a tail gas inlet pipe 3, a spray box 4, a spray pipe 5, a spray head 6, a first pipeline 7, a recovery bin 8, a first desulfurization box 9, a second desulfurization box 10, a first desulfurizer input hopper 11, a second pipeline 12, a second desulfurizer input hopper 13, a third pipeline 14, an exhaust pipe 15, a net frame 16, a first activated carbon filter screen 17, a dust removal net 18, a second activated carbon filter screen 19, a hemispherical spray head 20, a water inlet pipe 21 and spray holes 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-3, the present invention provides a technical solution: a closed desulfurization and dust removal circulating system for secondary lead smelting tail gas comprises a dust removal assembly, a spraying assembly and a desulfurization assembly, wherein the dust removal assembly comprises a dust removal box 1 and a plurality of dust removal filter screens 2, one side of the dust removal box 1 is provided with an inlet, a tail gas inlet pipe 3 is installed at the inlet, the other side of the dust removal box 1 is provided with an outlet, and the dust removal filter screens 2 are installed in the inner cavity of the dust removal box 1 in a staggered manner;
spray assembly includes spray box 4, shower 5 and a plurality of shower head 6, be connected through first pipeline 7 between 4 imports of spray box and the 1 export of dust removal case, spray box 5 is installed in 4 inner chambers tops of spray box, and is a plurality of 6 equidistant installations in spray box 5 of shower head, spray box 4 bottoms sets up retrieves storehouse 8, desulfurization subassembly sets up in spray box 4 one side.
The desulfurization subassembly includes first desulfurization case 9 and second desulfurization case 10, first desulfurizer of first desulfurization case 9 top installation is thrown into and is fought 11, first desulfurization case 9 passes through second pipeline 12 with spray tank 4 and be connected, second desulfurizer of second desulfurization case 10 top installation is thrown into and is fought 13, second desulfurization case 10 passes through third pipeline 14 with first desulfurization case 9 and is connected, still install blast pipe 15 on the second desulfurization case 10.
In the invention, each dust removal filter screen 2 comprises a screen frame 16, a first activated carbon filter screen 17, a dust removal screen 18 and a second activated carbon filter screen 19, and the first activated carbon filter screen 17, the dust removal screen 18 and the second activated carbon filter screen 19 are sequentially arranged in the screen frame 16. This dust removal filter screen can play and adsorb and remove dust and handle.
In the invention, each spray head 6 comprises a hemispherical spray head 20, a water inlet pipe 21 is arranged on the hemispherical spray head 20, and a plurality of spray holes 22 are uniformly distributed on the surface of the hemispherical spray head 20.
In addition, in the invention, the first desulfurizer feeding hopper and the second desulfurizer feeding hopper are respectively fed with desulfurizer, and the desulfurizer comprises, by weight, 20-30 parts of limestone, 4-10 parts of titanium dioxide, 4-10 parts of polyethylene glycol ester, 10-20 parts of hydrogen peroxide, 3-9 parts of sodium hypochlorite and 2-8 parts of magnesium oxide.
The working principle is as follows: the using method of the invention comprises the following steps:
A. the smelting tail gas is discharged into a dust removal box through a tail gas inlet pipe, and is absorbed and dedusted through a plurality of dedusting filter screens, and then the tail gas is discharged into a spraying box;
B. controlling the pump body in the external water tank to work, wherein spray water enters a plurality of spray headers through spray pipes, and the spray headers spray water mist to further settle the tail gas;
C. discharging the settled gas into a first desulfurization box through a pipeline, and putting a desulfurizing agent into a first desulfurizing agent throwing hopper to perform primary desulfurization treatment on the gas;
D. discharging the gas subjected to primary desulfurization into a second desulfurization box, and adding a desulfurizing agent into a second desulfurizing agent feeding hopper to perform secondary desulfurization treatment on the gas;
E. and discharging the gas subjected to secondary desulfurization into the atmosphere through an exhaust pipe.
In conclusion, the invention has novel structural design, can realize closed dust removal and desulfurization treatment on the smelting tail gas, realizes zero emission of pollutants to the atmosphere, and reduces the difficulty of flue gas treatment; and secondary desulfurization treatment is adopted, so that the desulfurization efficiency is further improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. A kind of secondary lead smelts the tail gas and closes the desulfurized dust collection circulating system, characterized by that: the device comprises a dust removal assembly, a spraying assembly and a desulfurization assembly, wherein the dust removal assembly comprises a dust removal box (1) and a plurality of dust removal filter screens (2), one side of the dust removal box (1) is provided with an inlet, a tail gas inlet pipe (3) is installed at the inlet, the other side of the dust removal box (1) is provided with an outlet, and the dust removal filter screens (2) are installed in the inner cavity of the dust removal box (1) in a staggered manner;
spray assembly is including spraying case (4), shower (5) and a plurality of shower head (6), it is connected through first pipeline (7) to spray between case (4) import and the export of dust removal case (1), install in spraying case (4) inner chamber top shower (5), and is a plurality of shower head (6) are equidistant to be installed in shower (5), it sets up recovery storehouse (8) to spray case (4) bottom, desulfurization subassembly sets up in spraying case (4) one side.
2. The closed desulfurization and dust removal circulation system for the secondary lead smelting tail gas as claimed in claim 1, is characterized in that: the desulfurization subassembly includes first desulfurization case (9) and second desulfurization case (10), first desulfurizer of first desulfurization case (9) top installation is thrown into and is fought (11), first desulfurization case (9) are connected through second pipeline (12) with spray tank (4), second desulfurizer of second desulfurization case (10) top installation is thrown into and is fought (13), second desulfurization case (10) are connected through third pipeline (14) with first desulfurization case (9), still install blast pipe (15) on second desulfurization case (10).
3. The closed desulfurization and dust removal circulation system for the secondary lead smelting tail gas as claimed in claim 1, is characterized in that: each dust removal filter screen (2) comprises a screen frame (16), a first activated carbon filter screen (17), a dust removal screen (18) and a second activated carbon filter screen (19), wherein the first activated carbon filter screen (17), the dust removal screen (18) and the second activated carbon filter screen (19) are sequentially arranged in the screen frame (16).
4. The closed desulfurization and dust removal circulation system for the secondary lead smelting tail gas as claimed in claim 1, is characterized in that: each spray head (6) comprises a hemispherical spray head (20), a water inlet pipe (21) is installed on the hemispherical spray head (20), and a plurality of spray holes (22) are uniformly distributed on the surface of the hemispherical spray head (20).
5. The closed desulfurization and dust removal circulation system for the secondary lead smelting tail gas as claimed in claim 1, is characterized in that: the first desulfurizer feeding hopper and the second desulfurizer feeding hopper are respectively fed with desulfurizer, and the desulfurizer comprises, by weight, 20-30 parts of limestone, 4-10 parts of titanium dioxide, 4-10 parts of polyethylene glycol ester, 10-20 parts of hydrogen peroxide, 3-9 parts of sodium hypochlorite and 2-8 parts of magnesium oxide.
6. The use method of the closed desulfurization and dust removal circulation system for the secondary lead smelting tail gas, which is disclosed by claim 1, is characterized by comprising the following steps of: the using method comprises the following steps:
A. the smelting tail gas is discharged into a dust removal box through a tail gas inlet pipe, and is absorbed and dedusted through a plurality of dedusting filter screens, and then the tail gas is discharged into a spraying box;
B. controlling the pump body in the external water tank to work, wherein spray water enters a plurality of spray headers through spray pipes, and the spray headers spray water mist to further settle the tail gas;
C. discharging the settled gas into a first desulfurization box through a pipeline, and putting a desulfurizing agent into a first desulfurizing agent throwing hopper to perform primary desulfurization treatment on the gas;
D. discharging the gas subjected to primary desulfurization into a second desulfurization box, and adding a desulfurizing agent into a second desulfurizing agent feeding hopper to perform secondary desulfurization treatment on the gas;
E. and discharging the gas subjected to secondary desulfurization into the atmosphere through an exhaust pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110460858.6A CN113058368A (en) | 2021-04-27 | 2021-04-27 | Lead regeneration smelting tail gas seals desulfurization dust removal circulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110460858.6A CN113058368A (en) | 2021-04-27 | 2021-04-27 | Lead regeneration smelting tail gas seals desulfurization dust removal circulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113058368A true CN113058368A (en) | 2021-07-02 |
Family
ID=76567806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110460858.6A Pending CN113058368A (en) | 2021-04-27 | 2021-04-27 | Lead regeneration smelting tail gas seals desulfurization dust removal circulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113058368A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4404284A1 (en) * | 1994-02-11 | 1995-08-17 | Steag Ag | Arrangement and method for environmentally friendly flue gas cleaning |
| CN105457407A (en) * | 2014-08-25 | 2016-04-06 | 陈鑫 | Double-filtration exhaust gas purification equipment |
| CN105749736A (en) * | 2016-05-10 | 2016-07-13 | 孙洋平 | Special calcium carbonate for desulfurization and denitrification in thermal power plant |
| CN210278735U (en) * | 2019-05-31 | 2020-04-10 | 骆驼集团(安徽)再生资源有限公司 | Sulfur-containing tail gas treatment device in secondary lead smelting |
-
2021
- 2021-04-27 CN CN202110460858.6A patent/CN113058368A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4404284A1 (en) * | 1994-02-11 | 1995-08-17 | Steag Ag | Arrangement and method for environmentally friendly flue gas cleaning |
| CN105457407A (en) * | 2014-08-25 | 2016-04-06 | 陈鑫 | Double-filtration exhaust gas purification equipment |
| CN105749736A (en) * | 2016-05-10 | 2016-07-13 | 孙洋平 | Special calcium carbonate for desulfurization and denitrification in thermal power plant |
| CN210278735U (en) * | 2019-05-31 | 2020-04-10 | 骆驼集团(安徽)再生资源有限公司 | Sulfur-containing tail gas treatment device in secondary lead smelting |
Non-Patent Citations (1)
| Title |
|---|
| 卢永昌等编: "《燃气净化工（初、中级工）》", 31 March 1996, 北京：中国建筑工业出版社 * |
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Application publication date: 20210702 |
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