CN111921316A - Ore heating furnace and coke oven tail gas purifying and recycling device - Google Patents
Ore heating furnace and coke oven tail gas purifying and recycling device Download PDFInfo
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- CN111921316A CN111921316A CN202010670368.4A CN202010670368A CN111921316A CN 111921316 A CN111921316 A CN 111921316A CN 202010670368 A CN202010670368 A CN 202010670368A CN 111921316 A CN111921316 A CN 111921316A
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- 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
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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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
- B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
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Abstract
The invention relates to the technical field of tail gas treatment, in particular to a tail gas purification and recycling device for a submerged arc furnace and a coke oven, which comprises a dust removal assembly, wherein a gas outlet of the dust removal assembly is communicated with a first connecting pipe, the first connecting pipe is communicated with a plurality of adsorption towers, a gas outlet of each adsorption tower is communicated with a second connecting pipe through a guide pipe, a gas outlet of each adsorption tower is communicated with a second control valve, one end of the second connecting pipe is communicated with a collecting tank, the guide pipe is communicated with a third connecting pipe, one end of the third connecting pipe is communicated with a reverse adsorption tower, an outlet of the reverse adsorption tower is connected with a third control valve, and an inlet of the reverse adsorption tower is communicated with a steam supply mechanism. The invention adsorbs most of benzene and naphthalene in the gas through the adsorption tower, and simultaneously adsorbs a trace amount of tar in the gas, so that the tar and the naphthalene cannot block the pipeline in the gas conveying process.
Description
Technical Field
The invention relates to the technical field of tail gas treatment, in particular to a tail gas purification and recycling device for a submerged arc furnace and a coke oven.
Background
At present, the known calcium carbide furnace and the silicon-manganese furnace usually carry out dust removal treatment firstly and then utilize power generation or manufacture chemical products, and in the using process, tar and naphthalene are often used as a Depiston pipeline, thus causing great influence on a submerged arc furnace and a recovery system.
Disclosure of Invention
The invention aims to solve the defects of tar and naphthalene Dewar pipes in gas in the prior art, and provides a device for purifying and recycling the tail gas of a submerged arc furnace and a coke oven.
In order to achieve the purpose, the invention adopts the following technical scheme:
the device comprises a dust removal assembly, wherein a gas outlet of the dust removal assembly is communicated with a first connecting pipe, the first connecting pipe is communicated with a plurality of adsorption towers, a gas inlet of each adsorption tower is connected with a first control valve, a gas outlet of each adsorption tower is communicated with a second connecting pipe through a conduit, a gas outlet of each adsorption tower is communicated with a second control valve, one end of each second connecting pipe is communicated with a collecting tank, the conduit is communicated with a third connecting pipe, one end of each third connecting pipe is communicated with a reverse adsorption tower, an outlet of the reverse adsorption tower is connected with a third control valve, an inlet of the reverse adsorption tower is communicated with a steam supply mechanism, and an inlet of the reverse adsorption tower is connected with a fourth control valve.
Preferably, the dust removal assembly comprises a dust removal shell, the dust removal shell is connected with an access panel, the bottom end inside the dust removal shell is connected with a heat exchanger, an air inlet of the heat exchanger is communicated with an air outlet of an external coke oven, an air outlet of the heat exchanger is communicated with a first conduit, the first conduit is positioned in the dust removal shell, a filter screen is fixedly connected in the dust removal shell, the dust removal shell is connected with a scraping mechanism, the scraping mechanism is positioned below the filter screen, the upper end of the scraping mechanism is contacted with the filter screen, a fixing frame is fixedly connected in the dust removal shell and positioned below the scraping mechanism, a collection box is slidably connected on the fixing frame, a through hole is formed in the collection box, a gas collection cover is fixedly connected in the dust removal shell and positioned above the filter screen, the upper end intercommunication of gas collecting channel has the second pipe, fixedly connected with backup pad in the dust removal casing, the upper end of backup pad is connected with the adsorption tank, the one end intercommunication of second pipe the upper end of adsorption tank, the upper end intercommunication of adsorption tank has gaseous dispersion mechanism, the hollow frame of fixedly connected with in the dust removal casing, the hollow frame is located the top of adsorption tank, gaseous dispersion mechanism intercommunication the hollow frame, the upper end intercommunication of hollow frame has gaseous purification mechanism, one side upper end intercommunication of dust removal casing has the outlet duct, the one end intercommunication of outlet duct the first connecting pipe.
Preferably, the adsorption tank and the gas dispersion mechanism are of an integrated structure.
Preferably, the gas purification mechanism comprises a fixing net, the fixing net is communicated with the hollow frame, and a filler is filled in the fixing net.
Preferably, gas dispersion mechanism includes the sealed tube, the one end intercommunication of sealed tube the adsorption tank, the equidistant intercommunication of circumferencial direction has a plurality of third pipe on the sealed tube, every the third pipe all communicates the cavity frame.
Preferably, scraping mechanism includes the motor, the motor is connected the dust removal casing, the output of motor is connected with two-way threaded rod through the pivot, two-way threaded rod is located in the dust removal casing, the rotatable connection of one end of two-way threaded rod the dust removal casing, be connected with the screwed pipe on the two-way threaded rod, the upper end of screwed pipe is connected with the scraper blade, the upper end of scraper blade with the filter screen contacts, the bottom of screwed pipe is connected with guiding mechanism, guiding mechanism connects the dust removal casing.
Preferably, the filler is activated carbon particles.
Preferably, the guide mechanism comprises a guide block, the guide block is connected with the threaded pipe, a guide rod is inserted into the guide block, and two ends of the guide rod are connected with the dust removal shell.
The tail gas purification and recycling device for the submerged arc furnace and the coke oven has the beneficial effects that:
after removing dust to gas through the dust removal subassembly, with in the leading-in adsorption tower of gas dispersion, most benzene and naphthalene in the adsorption tower adsorbed gas, simultaneously adsorb trace tar in the gas, at gas transport's in-process, can not cause tar and naphthalene to block up the pipeline, and simultaneously, reverse adsorption tower storage high temperature steam, high temperature steam lets in behind the adsorption tower, the temperature in the adsorption tower improves, heat regeneration to the adsorbent in the adsorption tower, make the adsorbent of adsorption tower continuously adsorb, can not cause tar and naphthalene to block up the pipeline.
Drawings
FIG. 1 is a schematic view of a flow structure of a device for purifying and recycling tail gas of a submerged arc furnace and a coke oven according to the present invention;
FIG. 2 is a schematic structural diagram of a dust removal assembly in the device for purifying and recycling the tail gas of the submerged arc furnace and the coke oven provided by the invention;
FIG. 3 is a schematic cross-sectional structural view of a dust removal assembly in the device for purifying and recycling the tail gas of the submerged arc furnace and the coke oven according to the present invention;
FIG. 4 is a schematic structural diagram of a scraping mechanism in the device for purifying and recycling the tail gas of the submerged arc furnace and the coke oven, which is provided by the invention;
FIG. 5 is a schematic view of a connection structure of a gas purification mechanism and a hollow frame in the device for purifying and recycling the tail gas of the submerged arc furnace and the coke oven.
In the figure: the device comprises a dust removal shell 1, an access panel 2, a heat exchanger 3, a first conduit 4, a fixing frame 5, a collection box 6, a through hole 7, a filter screen 8, a motor 9, a bidirectional threaded rod 10, a threaded pipe 11, a guide block 12, a guide rod 13, a scraper 14, a gas collecting hood 15, a second conduit 16, a support plate 17, an adsorption box 18, a sealing pipe 19, a third conduit 20, a hollow frame 21, a fixing net 22, a filler 23, a gas outlet pipe 24, a first connecting pipe 25, an adsorption tower 26, a first control valve 27, a second connecting pipe 28, a second control valve 29, a third connecting pipe 30, a reverse adsorption tower 31, a third control valve 32, a fourth control valve 33, a steam supply mechanism 34 and a collection tank 35.
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.
Example 1
Referring to fig. 1-5, a hot stove in ore deposit and coke oven tail gas purification and recycle device, including the dust removal subassembly, the gas outlet intercommunication of dust removal subassembly has first connecting pipe 25, the effect of first connecting pipe 25 is in leading-in adsorption tower 26 of the gas after will removing dust and cooling, the intercommunication has a plurality of adsorption tower 26 on the first connecting pipe 25, adsorption tower 26's effect is most benzene and naphthalene in the adsorbed gas, adsorb the trace tar in the gas simultaneously, at the in-process of gas delivery, can not cause tar and naphthalene to block up the pipeline, the gas inlet department of every adsorption tower 26 all is connected with first control valve 27, the effect of first control valve 27 is the leading-in adsorption tower 26 of control gas.
The gas outlet of each adsorption tower 26 is communicated with a second connecting pipe 28 through a conduit, the gas outlet of each adsorption tower 26 is communicated with a second control valve 29, the second control valve 29 is used for controlling the discharge of the gas after adsorption, one end of the second connecting pipe 28 is communicated with a collecting tank 35, the conduit is communicated with a third connecting pipe 30, one end of the third connecting pipe 30 is communicated with a reverse adsorption tower 31, the reverse adsorption tower 31 is used for storing high-temperature steam, the temperature in the adsorption tower 26 is increased to 150-200 ℃ after the high-temperature steam is introduced into the adsorption tower 26, the adsorbent in the adsorption tower 26 is heated and regenerated, a third control valve 32 is connected to an outlet of the reverse adsorption tower 31, a steam supply mechanism 34 is communicated with an inlet of the reverse adsorption tower 31, the steam supply mechanism 34 is used for supplying high-temperature steam, and a fourth control valve 33 is connected to an inlet of the reverse adsorption tower 31.
Example 2
Referring to fig. 1-5, as another preferred embodiment of the present invention, the difference from embodiment 1 is that the dust removing assembly includes a dust removing housing 1, the dust removing housing 1 is connected with an access panel 2, the bottom end inside the dust removing housing 1 is connected with a heat exchanger 3, the heat exchanger 3 is used for reducing the temperature of the introduced gas, the gas inlet of the heat exchanger 3 is communicated with the gas outlet of the external coke oven, the gas outlet of the heat exchanger 3 is communicated with a first conduit 4, the first conduit 4 is located inside the dust removing housing 1, a filter screen 8 is fixedly connected inside the dust removing housing 1, the filter screen 8 is used for filtering large-particle impurities in the gas, the dust removing housing 1 is connected with a scraping mechanism, the scraping mechanism is used for continuously scraping and washing the particle impurities adhered on the filter screen 8 after being started, it is ensured that the gas can pass through the filter screen 8, the scraping mechanism is located below.
Fixedly connected with mount 5 in the dust removal casing 1, mount 5's effect is to support and collect box 6, mount 5 is located the below of scraping mechanism, slidable is connected with on mount 5 and collects box 6, the effect of collecting box 6 is to collect the granule debris that scraping mechanism scraped, through-hole 7 has been seted up on collecting box 6, the effect of through-hole 7 is to make gaseous accessible collect box 6, fixedly connected with gas collecting channel 15 in the dust removal casing 1, gas collecting channel 15 is located the top of filter screen 8, the upper end intercommunication of gas collecting channel 15 has second pipe 16, fixedly connected with backup pad 17 in the dust removal casing 1, backup pad 17's effect is to support adsorption tank 18.
The upper end of the supporting plate 17 is connected with an adsorption tank 18, the adsorption tank 18 is filled with dust adsorbent, one end of the second conduit 16 is communicated with the upper end of the adsorption tank 18, the upper end of the adsorption tank 18 is communicated with a gas dispersion mechanism, the gas dispersion mechanism is used for dispersing gas released from the adsorption tank 18 into a hollow frame 21, the adsorption tank 18 and the gas dispersion mechanism are of an integral structure, the gas dispersion mechanism comprises a sealing pipe 19, one end of the sealing pipe 19 is communicated with the adsorption tank 18, a plurality of third conduits 20 are communicated with the sealing pipe 19 at equal intervals along the circumferential direction, each third conduit 20 is communicated with the hollow frame 21, the hollow frame 21 is fixedly connected in the dust removal shell 1, the hollow frame 21 is positioned above the adsorption tank 18, the gas dispersion mechanism is communicated with the hollow frame 21, the upper end of the hollow frame 21 is communicated with a gas purification mechanism, and the gas purification mechanism is used for purifying gas entering the hollow frame 21, the gas purification mechanism comprises a fixing net 22, the fixing net 22 is communicated with the hollow frame 21, the fixing net 22 is used for fixing a filler 23, the filler 23 is filled in the fixing net 22, the filler 23 is activated carbon particles, the upper end of one side of the dedusting shell 1 is communicated with an air outlet pipe 24, and one end of the air outlet pipe 24 is communicated with a first connecting pipe 25.
Example 3
Referring to fig. 1-5, as another preferred embodiment of the present invention, the difference from embodiment 2 is that the scraping mechanism includes a motor 9, the motor 9 is used to drive a bidirectional threaded rod 10 to rotate after being powered on, the motor 9 is connected to the dust removing housing 1, the output end of the motor 9 is connected to the bidirectional threaded rod 10 through a rotating shaft, the bidirectional threaded rod 10 is located in the dust removing housing 1, one end of the bidirectional threaded rod 10 is rotatably connected to the dust removing housing 1, a threaded pipe 11 is connected to the bidirectional threaded rod 10, the threaded pipe 11 is used to fix a scraping plate 14, the upper end of the threaded pipe 11 is connected to a scraping plate 14, the scraping plate 14 is used to scrape solid particles on the filter screen 8 after moving, the upper end of the scraping plate 14 is in contact with the filter screen 8, the bottom end of the threaded pipe 11 is connected to a guide mechanism, the guide mechanism is connected to the dust, guide block 12 is inserted with guide rod 13, and dust removal casing 1 is all connected at the both ends of guide rod 13, and scraper blade 14 removes the back, and guide block 12 moves on guide rod 13 for scraper blade 14 steadily moves in the horizontal direction.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The device for purifying and recycling the tail gas of the submerged arc furnace and the coke oven comprises a dust removal assembly and is characterized in that a gas outlet of the dust removal assembly is communicated with a first connecting pipe (25), the first connecting pipe (25) is communicated with a plurality of adsorption towers (26), a gas inlet of each adsorption tower (26) is connected with a first control valve (27), a gas outlet of each adsorption tower (26) is communicated with a second connecting pipe (28) through a conduit, a gas outlet of each adsorption tower (26) is communicated with a second control valve (29), one end of each second connecting pipe (28) is communicated with a collecting tank (35), the conduit is communicated with a third connecting pipe (30), one end of each third connecting pipe (30) is communicated with a reverse adsorption tower (31), and an outlet of each reverse adsorption tower (31) is connected with a third control valve (32), the inlet of the reverse adsorption tower (31) is communicated with a steam supply mechanism (34), and the inlet of the reverse adsorption tower (31) is connected with a fourth control valve (33).
2. The submerged arc furnace and coke oven tail gas purification and recycling device according to claim 1, characterized in that the dust removal assembly comprises a dust removal housing (1), the dust removal housing (1) is connected with an access panel (2), the bottom end inside the dust removal housing (1) is connected with a heat exchanger (3), the air inlet of the heat exchanger (3) is communicated with the air outlet of an external coke oven, the air outlet of the heat exchanger (3) is communicated with a first conduit (4), the first conduit (4) is positioned in the dust removal housing (1), a filter screen (8) is fixedly connected in the dust removal housing (1), the dust removal housing (1) is connected with a scraping mechanism, the scraping mechanism is positioned below the filter screen (8), the upper end of the scraping mechanism is in contact with the filter screen (8), and a fixing frame (5) is fixedly connected in the dust removal housing (1), the fixed frame (5) is positioned below the scraping mechanism, the fixed frame (5) is connected with a collecting box (6) in a sliding manner, a through hole (7) is formed in the collecting box (6), a gas collecting hood (15) is fixedly connected in the dedusting shell (1), the gas collecting hood (15) is positioned above the filter screen (8), the upper end of the gas collecting hood (15) is communicated with a second conduit (16), a supporting plate (17) is fixedly connected in the dedusting shell (1), the upper end of the supporting plate (17) is connected with an adsorption box (18), one end of the second conduit (16) is communicated with the upper end of the adsorption box (18), the upper end of the adsorption box (18) is communicated with a gas dispersing mechanism, a hollow frame (21) is fixedly connected in the dedusting shell (1), and the hollow frame (21) is positioned above the adsorption box (18), gaseous dispersion mechanism intercommunication cavity frame (21), the upper end intercommunication of cavity frame (21) has gaseous purification mechanism, one side upper end intercommunication of dust removal casing (1) has outlet duct (24), the one end intercommunication of outlet duct (24) first connecting pipe (25).
3. The apparatus for purifying and recycling the exhaust gas of the submerged arc furnace and the coke oven according to claim 2, wherein the adsorption tank (18) and the gas dispersing mechanism are integrated.
4. The device for purifying and recycling the tail gas of the submerged arc furnace and the coke oven according to claim 2, wherein the gas purifying mechanism comprises a fixing net (22), the fixing net (22) is communicated with the hollow frame (21), and the fixing net (22) is filled with a filler (23).
5. The submerged arc furnace and coke oven tail gas purification and recycling device according to claim 2, characterized in that the gas dispersion mechanism comprises a sealing tube (19), one end of the sealing tube (19) is communicated with the adsorption tank (18), a plurality of third conduits (20) are communicated with the sealing tube (19) at equal intervals along the circumferential direction, and each third conduit (20) is communicated with the hollow frame (21).
6. The submerged arc furnace and coke oven tail gas purification and recycling device according to claim 2, characterized in that the scraping mechanism comprises a motor (9), the motor (9) is connected with the dust removal housing (1), the output end of the motor (9) is connected with a bidirectional threaded rod (10) through a rotating shaft, the bidirectional threaded rod (10) is located in the dust removal housing (1), one end of the bidirectional threaded rod (10) is rotatably connected with the dust removal housing (1), the bidirectional threaded rod (10) is connected with a threaded pipe (11), the upper end of the threaded pipe (11) is connected with a scraping plate (14), the upper end of the scraping plate (14) is in contact with the filter screen (8), the bottom end of the threaded pipe (11) is connected with a guiding mechanism, and the guiding mechanism is connected with the dust removal housing (1).
7. The device for purifying and recycling the tail gas of the submerged arc furnace and the coke oven according to claim 4, characterized in that the filler (23) is activated carbon particles.
8. The submerged arc furnace and coke oven tail gas purification and recycling device according to claim 1, characterized in that the guiding mechanism comprises a guiding block (12), the guiding block (12) is connected with the threaded pipe (11), a guiding rod (13) is inserted on the guiding block (12), and both ends of the guiding rod (13) are connected with the dust removal housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010670368.4A CN111921316A (en) | 2020-07-13 | 2020-07-13 | Ore heating furnace and coke oven tail gas purifying and recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010670368.4A CN111921316A (en) | 2020-07-13 | 2020-07-13 | Ore heating furnace and coke oven tail gas purifying and recycling device |
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| Publication Number | Publication Date |
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| CN111921316A true CN111921316A (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010670368.4A Pending CN111921316A (en) | 2020-07-13 | 2020-07-13 | Ore heating furnace and coke oven tail gas purifying and recycling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116351202A (en) * | 2023-02-03 | 2023-06-30 | 山东百特机械设备有限公司 | Radial flow equalizing pressure swing adsorption tower |
-
2020
- 2020-07-13 CN CN202010670368.4A patent/CN111921316A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116351202A (en) * | 2023-02-03 | 2023-06-30 | 山东百特机械设备有限公司 | Radial flow equalizing pressure swing adsorption tower |
| CN116351202B (en) * | 2023-02-03 | 2023-12-05 | 山东百特机械设备有限公司 | Radial flow equalizing pressure swing adsorption tower |
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Effective date of registration: 20220517 Address after: 755000 Shikong Town Industrial Park, Zhongning County, Zhongwei City, Ningxia Hui Autonomous Region Applicant after: Ningxia xingertai Chemical Group Co.,Ltd. Applicant after: Zhuo Yue Address before: 751100 Guoguo new village, Beihuan Road, Litong District, Wuzhong City, Ningxia Hui Autonomous Region 11660 Applicant before: Zhuo Yue |
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