CN113959230B - Large-particle smoke recycling and utilizing device for smelting furnace - Google Patents
Large-particle smoke recycling and utilizing device for smelting furnace Download PDFInfo
- Publication number
- CN113959230B CN113959230B CN202111231324.2A CN202111231324A CN113959230B CN 113959230 B CN113959230 B CN 113959230B CN 202111231324 A CN202111231324 A CN 202111231324A CN 113959230 B CN113959230 B CN 113959230B
- Authority
- CN
- China
- Prior art keywords
- flue gas
- gas pipeline
- air distribution
- distribution valve
- pipe section
- Prior art date
- 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.)
- Active
Links
- 239000000779 smoke Substances 0.000 title claims abstract description 55
- 239000002245 particle Substances 0.000 title claims abstract description 33
- 238000004064 recycling Methods 0.000 title claims abstract description 23
- 238000003723 Smelting Methods 0.000 title claims abstract description 21
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 125
- 239000003546 flue gas Substances 0.000 claims abstract description 125
- 238000010891 electric arc Methods 0.000 claims abstract description 25
- 238000004062 sedimentation Methods 0.000 claims abstract description 13
- 206010022000 influenza Diseases 0.000 claims abstract description 9
- 239000000428 dust Substances 0.000 claims description 26
- 238000009826 distribution Methods 0.000 claims description 24
- 238000011084 recovery Methods 0.000 claims description 11
- 239000008187 granular material Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 9
- 238000007599 discharging Methods 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- IXQWNVPHFNLUGD-UHFFFAOYSA-N iron titanium Chemical compound [Ti].[Fe] IXQWNVPHFNLUGD-UHFFFAOYSA-N 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/02—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
- F27D17/002—Details of the installations, e.g. fume conduits or seals
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a large-particle smoke recycling device for a smelting furnace, which comprises the following components: the conveying flues are arranged in one-to-one correspondence with the electric arc furnaces; wherein each group of delivery flues comprises a plurality of first flue gas pipelines; the inlet end of the first flue gas pipeline is communicated with a flue gas outlet of the electric arc furnace; the second flue gas pipeline is positioned above the electric arc furnace, and two ends of the second flue gas pipeline are closed; the outlet end of the first flue gas pipeline is communicated with the second flue gas pipeline, and the top of the second flue gas pipeline is provided with an air outlet; wherein the inner diameter of the second flue gas pipeline is larger than the inner diameter of the first flue gas pipeline; the exhaust fan is arranged at the air outlet; the plurality of settling tanks are arranged in one-to-one correspondence with the electric arc furnaces and are fixedly arranged below the second flue gas pipeline; the upper end of the sedimentation tank is provided with a feed inlet, and the lower end of the sedimentation tank is provided with a first discharge outlet; wherein the feed inlet is communicated with the second flue gas pipeline; and the blanking valve is arranged at the first discharge hole and is used for opening or closing the first discharge hole.
Description
Technical Field
The invention belongs to the technical field of a method and equipment for removing dust from high-temperature smoke gas in mineral extraction, and particularly relates to a large-particle smoke recycling device for a smelting furnace.
Background
A large amount of smoke dust is generated in the process of smelting titanium dioxide, and the smoke dust still contains titanium slag with higher content, so that if the smoke dust is directly discharged into the atmosphere, the environment pollution is caused, and the great waste is caused. The method for recycling the smoke dust is disclosed in the prior published patent report, which is to mix the smoke dust with a binder, water and the like to prepare slurry, and then treat the slurry by magnetic separation or pelletizing, so that the operation steps are complicated, and the recycling efficiency is low.
Disclosure of Invention
The invention aims to provide a large-particle smoke recycling device for a smelting furnace, which can enable particles in smoke generated in an electric arc furnace to be settled into a settling tank; thereby realizing the collection and recycling of titanium slag in the smoke dust.
The technical scheme provided by the invention is as follows:
a large-particle smoke recycling and utilizing device for a smelting furnace comprises:
the conveying flues are arranged in one-to-one correspondence with the electric arc furnaces;
wherein each group of the conveying flues comprises a plurality of first flue gas pipelines; the inlet end of the first flue gas pipeline is communicated with a flue gas outlet of the electric arc furnace; the first flue gas pipeline is provided with an air distribution valve for adjusting the flue gas quantity passing through the first flue gas pipeline;
the second flue gas pipeline is horizontally arranged and is positioned above the electric arc furnace, and two ends of the second flue gas pipeline are closed; the outlet end of the first flue gas pipeline is communicated with the second flue gas pipeline, and the top of the second flue gas pipeline is provided with an air outlet;
wherein the inner diameter of the second flue gas pipeline is larger than the inner diameter of the first flue gas pipeline;
an exhaust fan arranged at the air outlet;
the plurality of settling tanks are arranged in one-to-one correspondence with the electric arc furnaces, and the settling tanks are fixedly arranged below the second flue gas pipeline; the upper end of the sedimentation tank is provided with a feed inlet, and the lower end of the sedimentation tank is provided with a first discharge outlet;
wherein the feed inlet is communicated with the second flue gas pipeline;
and the blanking valve is arranged at the first discharge hole and used for opening or closing the first discharge hole.
Preferably, a plurality of second discharge ports are formed in the bottom of the second flue gas pipeline, and the second discharge ports are communicated with the feed ports in a one-to-one correspondence manner.
Preferably, the plurality of second discharge ports are uniformly distributed along the axial direction of the second flue gas pipeline.
Preferably, the top of the second flue gas pipeline is provided with a plurality of flue gas inlets, and the flue gas inlets are communicated with the outlet ends of the first flue gas pipeline in a one-to-one correspondence manner;
wherein the plurality of flue gas inlets are arranged at intervals along the axial direction of the second flue gas pipeline.
Preferably, the device for recycling and utilizing large-particle smoke dust for smelting furnace further comprises:
an endless track disposed around a plurality of said arc furnaces and said plurality of ballast tanks;
a recovery vehicle provided on the endless track and movable along the endless track;
the recycling vehicle receives the smoke dust particles discharged from the first discharge hole and conveys the smoke dust particles to the electric arc furnace.
Preferably, the first flue gas duct comprises a first duct section and a second duct section;
the first pipe section is a straight pipe, and one end of the first pipe section is an inlet end of a first flue gas pipeline; the second pipe section is an elbow, one end of the second pipe section is connected with the other end of the first pipe section, and the other end of the second pipe section is communicated with the flue gas inlet.
Preferably, the air distribution valve is fixedly connected with a rotating shaft; the rotating shaft is arranged along the radial direction of the first flue gas pipeline; one end of the rotating shaft is rotatably supported on the pipe wall of the first flue gas pipeline, and the other end of the rotating shaft rotatably penetrates through the pipe wall and extends to the outside of the first flue gas pipeline;
and the rotating shaft drives the air distribution valve to rotate when rotating, so that the opening degree of the air distribution valve is changed.
Preferably, the device for recycling and utilizing large-particle smoke dust for smelting furnace further comprises:
the air distribution valve handle is arranged outside the first flue gas pipeline and is fixedly connected with the rotating shaft; the air distribution valve handle is provided with a plurality of locking holes;
the first flue gas pipeline is provided with an opening positioning hole of the air distribution valve, and any locking hole can be aligned to the positioning hole by rotating the air distribution valve handle;
and the locating pin can be simultaneously inserted into the locating hole and the locking hole corresponding to the locating hole.
Preferably, a vibrator is arranged on the side wall of the sedimentation tank.
Preferably, the inner cavity of the sedimentation tank is of a funnel-shaped structure which is gradually reduced from top to bottom.
The beneficial effects of the invention are as follows:
the large-particle smoke recycling device for the smelting furnace provided by the invention can enable smoke dust generated by an electric arc furnace to vertically enter the upper part of a second smoke pipeline through the first smoke pipeline under the action of an external exhaust fan; the rapid increase of the contact area with air in the second flue gas pipeline promotes the temperature of the smoke dust to be reduced, and large-particle smoke dust directly subsides into the sedimentation tank under the action of gravity; and the large-particle smoke dust is conveyed into the electric arc furnace through the recovery vehicle and is reduced into high-grade titanium slag again, so that the large-particle smoke dust is recovered and utilized.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a large-particle smoke recycling device for a smelting furnace.
Fig. 2 is a schematic view of the structure of an arc furnace according to the present invention.
Fig. 3 is a schematic structural diagram of a second flue gas duct according to the present invention.
Fig. 4 is a schematic structural diagram of a first flue gas duct according to the present invention.
Fig. 5 is a schematic structural diagram of a combination of a first flue gas duct and a second flue gas duct according to the present invention.
Fig. 6 is a schematic structural diagram of an air distribution valve according to the present invention.
Fig. 7 is a schematic structural diagram of the air distribution valve and the positioning plate according to the present invention.
Fig. 8 is a schematic structural diagram of a combination of a settling tank and a second flue gas duct according to the present invention.
Fig. 9 is a schematic structural view of the settling tank of the present invention.
Fig. 10 is a schematic structural diagram of a combination of a settling tank and a vibrator according to the present invention.
Fig. 11 is a schematic external view of a vibrator according to the present invention.
Fig. 12 is a schematic structural diagram of the blanking valve according to the present invention.
Fig. 13 is a schematic view of a circular track according to the present invention.
Fig. 14 is a schematic view of a recovery vehicle assembly according to the present invention.
Fig. 15 is a schematic structural view of a combination of a circular track and a recovery vehicle according to the present invention.
Detailed Description
The present invention is described in further detail below with reference to the drawings to enable those skilled in the art to practice the invention by referring to the description.
As shown in fig. 1 to 15, the present invention provides a large particle smoke recycling and utilizing device for a smelting furnace, which mainly comprises: a first flue gas duct 110, a damper 120, a second flue gas duct 130, an exhaust fan, a caisson 140, a blanking valve 150, an annular rail 160, a recovery vehicle 170 and a vibrator 180.
As shown in fig. 2, the electric arc furnace 210 has a cylindrical barrel structure as a whole, a cover plate is welded at the top, and two flue gas outlets 211 are formed in the cover plate and are used for connecting a conveying flue; a rectangular door 212 is provided on the front side of the arc furnace 210 for adding smelting raw materials such as iron-titanium ore.
The conveying flues are arranged in one-to-one correspondence with the electric arc furnaces 210, namely, each group of conveying flues corresponds to one electric arc furnace 210; each group of the conveying flues comprises two first flue gas pipelines 110, and the first flue gas pipelines 110 are arranged in one-to-one correspondence with the flue gas outlets 211. The inlet end (lower end) of the first flue gas duct 110 communicates with a flue gas outlet 211 of the electric arc furnace 210; the first flue gas duct 110 is provided with a damper 120, the damper 120 being used for adjusting the amount of flue gas passing through the first flue gas duct 110.
The second flue gas duct 130 is disposed horizontally and above the electric arc furnace 210, and both ends of the second flue gas duct 130 are closed. The outlet end of the first flue gas pipeline 110 is communicated with the top of the second flue gas pipeline 130, and the top of the second flue gas pipeline 130 is provided with an air outlet 131; the exhaust fan is connected to the second flue gas duct 130 at the outlet 131. Under the action of the exhaust fan, the flue gas vertically enters the second flue gas pipeline 130 through the first flue gas pipeline 110; wherein the inner diameter of the second flue gas duct 130 is larger than the inner diameter of the first flue gas duct 110. In this embodiment, the inner diameter of the second flue gas duct 130 is 2.25 times the inner diameter of the first flue gas duct 110. By varying the opening of the damper 120 to adjust the amount of smoke passing through the first smoke conduit 110, the further from the exhaust fan 140 the smoke path, the greater the opening of the damper 120 should be, and vice versa; the amount of smoke passing through each first smoke pipe 110 can be made the same, thereby achieving uniform distribution of smoke.
As shown in fig. 3, the top (upper part) of the second flue gas pipeline 130 is provided with a plurality of flue gas inlets 132, and the flue gas inlets 132 are correspondingly communicated with the outlet ends of the first flue gas pipeline 110 one by one; wherein the plurality of flue gas inlets 132 are spaced apart along the axial direction of the second flue gas duct 130.
As shown in fig. 4 to 5, in the present embodiment, the first flue gas duct 110 includes a first pipe section 111 and a second pipe section 112; wherein the first pipe section 111 is a cylindrical straight pipe, and one end (lower end) of the first pipe section 111 is an inlet end of the first flue gas duct 110; the second pipe section 112 is an elbow, one end of the second pipe section 112 is connected to the other end (upper end) of the first pipe section 111, and the other end (i.e. the outlet end of the first flue gas pipe 110) is connected to the flue gas inlet 132. Wherein the first pipe section 111 is disposed obliquely, and the portion of the second pipe section 112 connected to the flue gas inlet 132 is disposed vertically (i.e., perpendicular to the second flue gas duct 130).
The damper 120 is installed at the middle upper portion of the first pipe section 111. As shown in fig. 4 and fig. 6 to 7, the damper 120 includes: a damper 121, a rotary shaft 122 and a damper handle 123. The air distribution valve 121 is oval plate-shaped and coaxially installed in the first pipe section 111, the rotating shaft 122 is fixedly connected to the air distribution valve 121, and the rotating shaft 122 is disposed along the radial direction of the first flue gas duct 120. The damper handle 123 is disposed outside the first fume duct 111; one end of the rotating shaft 122 rotatably penetrates through the pipe wall of the first pipe section 111 and is fixedly connected with the air distribution valve handle 123; the other end of the rotary shaft 122 is rotatably supported on the pipe wall of the first pipe section 111. In the present embodiment, the damper handle 123 is composed of a rectangular parallelepiped columnar operation rod 123a and a semicircular locking plate 123 b; wherein the locking plate 123b is perpendicular to the rotation shaft 122. A plurality of locking holes 123c are uniformly formed in the disc surface of the locking disc 123b along the outer circumferential direction; meanwhile, a positioning plate 310 is fixedly arranged on the outer side of the pipe wall of the first pipe section 111, the positioning plate 310 corresponds to the locking disc 123b in position, and a positioning hole 311 is formed in the positioning plate, and the positioning hole 311 is a blind hole. Any one of the locking holes 123c can be aligned with the positioning hole 311 by rotating the damper handle 123; the positioning pin is inserted into the positioning hole 311 and the locking hole 123c corresponding to the positioning hole 311 at the same time, so that the position of the air distribution valve 121 can be fixed. Different openings of the air distribution valve 121 can be realized by aligning different 123a with the positioning holes 311.
The plurality of settling tanks 140 are arranged in one-to-one correspondence with the arc furnaces 210, and the settling tanks 140 are fixedly arranged below the second flue gas pipeline 130. As shown in fig. 8 to 9, a feed inlet 141 is provided at the upper end of the caisson 140, and a first discharge outlet 142 is provided at the lower end of the caisson 140. Wherein the feed inlet 141 communicates with the second flue gas duct 130. The discharging valve 150 is disposed at the first discharging port 142, and is used for opening or closing the first discharging port 142.
As shown in fig. 3, a plurality of second discharge ports 133 are formed on the bottom (lower) wall of the second flue gas duct 130, and the second discharge ports 133 are in one-to-one correspondence with the feed ports 141 of the caisson 140. Preferably, the plurality of second discharge ports 133 are uniformly arranged along the axial direction of the second flue gas duct 130.
As shown in fig. 9 to 11, in the present embodiment, the upper end of the sedimentation tank 140 is a rectangular tank 140a penetrating up and down, the lower end of the rectangular tank 140a is coaxially welded with a rectangular pyramid tank 140b having a wide upper part and a narrow lower part (funnel shape), the lower end of the rectangular pyramid tank 140b is connected with two sections of cylindrical pipes 140c and 140d arranged at intervals, and annular bosses 140e and 140f are respectively pulled out from the lower end surface of the upper section of the cylindrical pipe 140c and the upper end surface of the lower section of the cylindrical pipe 140 d; wherein, the circular bosses 140e and 140f achieve a fixed connection between the cylindrical pipes 140c and 140d by being welded on the vertically disposed cylindrical connection rod 140g at the same time. Vibrator 180 is fixedly mounted on mounting plate 140h of ballast tank 140 by bolts. The principle of the vibrator is that an eccentric block is arranged on a rotor shaft of the vibrator, and the eccentric block rotates along with the rotor shaft to generate centrifugal force and vibration. The vibrator 180 functions as: through vibrations, let the better subsidence of large granule attachment on the heavy workbin 140 lateral wall, improve recycle's efficiency, practice thrift the cost.
The arc furnace 210, the first flue gas pipe 110, the second flue gas pipe 130 and the caisson 140 may be all connected by welding.
As shown in fig. 10 and 12, the blanking valve 150 is rotatably disposed between the circular bosses 140e and 140 f. The blanking valve 150 includes a circular ring portion 151, a circular plate portion 152 and a handle 153 connected to each other on the same plane; wherein, the handle 153 is connected between the circular ring portion 151 and the circular plate portion 152. The outer diameters of the circular ring portion 151 and the circular plate portion 152 are the same as the outer diameters of the circular ring bosses 140e and 140f; the inner diameter of the annular ring portion 151 is the same as the inner diameters of the two cylindrical tubes 140c and 140 d. The upper and lower sides of the junction of the circular ring portion 151, the circular plate portion 152 and the handle 153 are fixedly provided with rotary shafts 154, respectively; and the rotating shafts 154 positioned at both sides of the discharging valve 150 are coaxially disposed. The annular bosses 140e and 140f are provided with shaft holes, which are opposite to the cylindrical connecting rod 140g, that is, the shaft holes and the cylindrical connecting rod 140g are positioned at two ends of the same diameter of the annular boss 140e (140 f). The rotary shafts 154 on both sides of the blanking valve 150 are respectively rotatably and matingly connected in the shaft holes of the circular bosses 140e and 140 f. The handle 153 is turned to make the circular plate part 152 coaxial with the first discharging hole 142 for storing materials; maximum discharge can be achieved when the annular portion 151 is coaxial with the first discharge port 142; when the handle 153 is rotated to make the portion of the annular portion 151 correspond to the first discharge port 142, the discharge amount can be adjusted.
An endless track 160 is provided simultaneously around a plurality of said electric arc furnaces 210 and a plurality of said ballast tanks 140. The recovery vehicle 170 is disposed on the endless track 160 and is movable along the endless track 160. When the recovery vehicle 170 moves to a position corresponding to the first discharge hole 152 of the settling tank 140, the recovery vehicle can receive the smoke particles discharged from the first discharge hole 152, and convey the received smoke particles to the arc furnace 210 along the annular track 160, and pour the smoke particles into the arc furnace 210 through the rectangular door 212; the smoke particles are participated in the smelting process again, so that the recycling of large-particle smoke is realized.
The large-particle smoke recycling device for the smelting furnace provided by the invention can enable smoke dust generated by an electric arc furnace to vertically enter the upper part of a second smoke pipeline through the first smoke pipeline under the action of an external exhaust fan; the rapid increase of the contact area with air in the second flue gas pipeline promotes the temperature of the smoke dust to be reduced, and large-particle smoke dust directly subsides into the sedimentation tank under the action of gravity; and the large-particle smoke dust is conveyed into the electric arc furnace through the recovery vehicle and is reduced into high-grade titanium slag again, so that the large-particle smoke dust is recovered and utilized.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (7)
1. The utility model provides a smelting furnace is with large granule smoke and dust recovery and utilization device which characterized in that includes:
the conveying flues are arranged in one-to-one correspondence with the electric arc furnaces;
wherein each group of the conveying flues comprises a plurality of first flue gas pipelines; the inlet end of the first flue gas pipeline is communicated with a flue gas outlet of the electric arc furnace; the first flue gas pipeline is provided with an air distribution valve for adjusting the flue gas quantity passing through the first flue gas pipeline; the opening of the air distribution valve is larger for the first flue gas channel far away from the exhaust fan, so that the flue gas quantity passing through each first flue gas pipeline is the same;
the second flue gas pipeline is horizontally arranged and is positioned above the electric arc furnace, and two ends of the second flue gas pipeline are closed; the outlet end of the first flue gas pipeline is communicated with the second flue gas pipeline, and the top of the second flue gas pipeline is provided with an air outlet;
wherein the inner diameter of the second flue gas pipeline is larger than the inner diameter of the first flue gas pipeline;
an exhaust fan arranged at the air outlet;
the plurality of settling tanks are arranged in one-to-one correspondence with the electric arc furnaces, and the settling tanks are fixedly arranged below the second flue gas pipeline; the upper end of the sedimentation tank is provided with a feed inlet, and the lower end of the sedimentation tank is provided with a first discharge outlet;
wherein the feed inlet is communicated with the second flue gas pipeline;
the blanking valve is arranged at the first discharge hole and used for opening or closing the first discharge hole;
a plurality of second discharge ports are formed in the bottom of the second flue gas pipeline, and the second discharge ports are communicated with the feed ports in a one-to-one correspondence manner;
the plurality of second discharge holes are uniformly distributed along the axial direction of the second flue gas pipeline;
the top of the second flue gas pipeline is provided with a plurality of flue gas inlets which are communicated with the outlet ends of the first flue gas pipeline in a one-to-one correspondence manner;
wherein the plurality of flue gas inlets are arranged at intervals along the axial direction of the second flue gas pipeline.
2. The large particle smoke recycling and utilizing device for smelting furnace according to claim 1, further comprising:
an endless track disposed around a plurality of said arc furnaces and said plurality of ballast tanks;
a recovery vehicle provided on the endless track and movable along the endless track;
the recycling vehicle receives the smoke dust particles discharged from the first discharge hole and conveys the smoke dust particles to the electric arc furnace.
3. The large particle smoke recycling device for smelting furnace according to claim 2, wherein the first smoke pipeline comprises a first pipe section and a second pipe section;
the first pipe section is a straight pipe, and one end of the first pipe section is an inlet end of a first flue gas pipeline; the second pipe section is an elbow, one end of the second pipe section is connected with the other end of the first pipe section, and the other end of the second pipe section is communicated with the flue gas inlet.
4. The large-particle smoke recycling device for smelting furnace according to claim 3, wherein the air distribution valve is fixedly connected with a rotating shaft; the rotating shaft is arranged along the radial direction of the first flue gas pipeline; one end of the rotating shaft is rotatably supported on the pipe wall of the first flue gas pipeline, and the other end of the rotating shaft rotatably penetrates through the pipe wall and extends to the outside of the first flue gas pipeline;
and the rotating shaft drives the air distribution valve to rotate when rotating, so that the opening degree of the air distribution valve is changed.
5. The large particle dust recycling apparatus for smelting furnace according to claim 4, further comprising:
the air distribution valve handle is arranged outside the first flue gas pipeline and is fixedly connected with the rotating shaft; the air distribution valve handle is provided with a plurality of locking holes;
the first flue gas pipeline is provided with an opening positioning hole of the air distribution valve, and any locking hole can be aligned to the positioning hole by rotating the air distribution valve handle;
and the locating pin can be simultaneously inserted into the locating hole and the locking hole corresponding to the locating hole.
6. The apparatus according to claim 5, wherein a vibrator is installed on a side wall of the sedimentation tank.
7. The device for recycling and utilizing large-particle smoke dust for smelting furnace according to claim 6, wherein the inner cavity of the sedimentation tank is of a funnel-shaped structure which is gradually reduced from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111231324.2A CN113959230B (en) | 2021-10-22 | 2021-10-22 | Large-particle smoke recycling and utilizing device for smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111231324.2A CN113959230B (en) | 2021-10-22 | 2021-10-22 | Large-particle smoke recycling and utilizing device for smelting furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113959230A CN113959230A (en) | 2022-01-21 |
| CN113959230B true CN113959230B (en) | 2024-02-02 |
Family
ID=79466069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111231324.2A Active CN113959230B (en) | 2021-10-22 | 2021-10-22 | Large-particle smoke recycling and utilizing device for smelting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113959230B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202209892U (en) * | 2011-08-31 | 2012-05-02 | 河北净达环保工程有限公司 | Movable automatic-feeding dust collecting cart for intermediate frequency furnace |
| CN206414917U (en) * | 2016-12-30 | 2017-08-18 | 隆昌县碧檀陶瓷有限公司 | A kind of ceramic sintering kiln |
| CN110639318A (en) * | 2019-10-15 | 2020-01-03 | 宁夏洪腾科技开发有限公司 | Environment-friendly and energy-saving coal calcining system and method thereof |
| DE212020000407U1 (en) * | 2020-12-18 | 2021-02-18 | Changmin (Suzhou) Information Technology Co., Ltd | Soot settling device for thermal power station |
| CN212775637U (en) * | 2020-08-14 | 2021-03-23 | 江苏仁泽环境科技有限公司 | Air valve capable of accurately adjusting air quantity |
-
2021
- 2021-10-22 CN CN202111231324.2A patent/CN113959230B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202209892U (en) * | 2011-08-31 | 2012-05-02 | 河北净达环保工程有限公司 | Movable automatic-feeding dust collecting cart for intermediate frequency furnace |
| CN206414917U (en) * | 2016-12-30 | 2017-08-18 | 隆昌县碧檀陶瓷有限公司 | A kind of ceramic sintering kiln |
| CN110639318A (en) * | 2019-10-15 | 2020-01-03 | 宁夏洪腾科技开发有限公司 | Environment-friendly and energy-saving coal calcining system and method thereof |
| CN212775637U (en) * | 2020-08-14 | 2021-03-23 | 江苏仁泽环境科技有限公司 | Air valve capable of accurately adjusting air quantity |
| DE212020000407U1 (en) * | 2020-12-18 | 2021-02-18 | Changmin (Suzhou) Information Technology Co., Ltd | Soot settling device for thermal power station |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113959230A (en) | 2022-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204058359U (en) | pyrolytic reaction device | |
| CN113959230B (en) | Large-particle smoke recycling and utilizing device for smelting furnace | |
| CN103194561B (en) | Device for directly adding sintering returned dust into ladle | |
| CN208436637U (en) | A kind of injection moulding machine template nodular iron casting production emission-control equipment | |
| CN201618621U (en) | Cyclone centrifugal dust collection device | |
| CN107597261A (en) | Can depositing dust construction waste crush grind processing unit | |
| CN106955800B (en) | Novel dry-type purification method and purification structure | |
| CN211562352U (en) | Blast furnace gas gravity dust removal system | |
| CN112934361A (en) | Molten steel slag disc type air-cooling double-rotating-roller crushing treatment device and method | |
| CN207741582U (en) | A kind of fume extractor of electric melting furnace | |
| CN2440584Y (en) | Separator for small broken steel balls from iron powder | |
| CN208266025U (en) | A kind of metal sludge processing equipment | |
| CN112169459B (en) | Dust collector is used in production of wear-resisting corrosion resistant lining rubber slurry pump | |
| CN213506092U (en) | Cyclone desander | |
| CN111233182A (en) | Heavy metal waste residue processing apparatus based on solidification principle | |
| CN202538539U (en) | Apparatus for intercepting dust in off-gas in dry de-dusting device | |
| CN213300870U (en) | Rotary sinter cooling device | |
| CN110812978A (en) | Rotary top suction type dust removal vehicle | |
| CN220844623U (en) | Dust removal pipeline device for transferring belt unloading points | |
| CN219995352U (en) | Novel pneumatic ash removal device for furnace bottom of pulverized coal boiler | |
| CN219817415U (en) | A processing apparatus for building solid waste | |
| CN100351019C (en) | Spiral cylinder cyclone dust collecting process apparatus | |
| CN211676785U (en) | Gas injection device for dust removing equipment | |
| CN217796682U (en) | Combined quartz sand production device | |
| CN213294059U (en) | Ash discharging device for ash bin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |