CN220062617U - Waste heat utilization device for waste gas from iron and steel smelting - Google Patents
Waste heat utilization device for waste gas from iron and steel smelting Download PDFInfo
- Publication number
- CN220062617U CN220062617U CN202321250850.8U CN202321250850U CN220062617U CN 220062617 U CN220062617 U CN 220062617U CN 202321250850 U CN202321250850 U CN 202321250850U CN 220062617 U CN220062617 U CN 220062617U
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- waste gas
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- gas
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000002912 waste gas Substances 0.000 title claims abstract description 48
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 24
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 24
- 239000010959 steel Substances 0.000 title claims abstract description 24
- 238000003723 Smelting Methods 0.000 title claims abstract description 22
- 239000002918 waste heat Substances 0.000 title claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 67
- 238000011084 recovery Methods 0.000 claims abstract description 36
- 239000007789 gas Substances 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 9
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims 2
- 238000000926 separation method Methods 0.000 abstract description 11
- 238000004140 cleaning Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 description 7
- 229910000805 Pig iron Inorganic materials 0.000 description 4
- 239000002994 raw material Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- Y02P10/25—Process efficiency
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a waste heat utilization device for waste gas of iron and steel smelting, which relates to the technical field of waste gas utilization and comprises a recovery unit, a treatment unit, a circulation unit, a filter element, an installation unit and a liquid return unit; the mounting unit comprises a cover plate arranged on one side of the processing unit and an L-shaped plate fixedly connected to the top of the cover plate and used for clamping and mounting the filter element; the liquid return unit comprises a conical cover arranged between the inner walls of the treatment unit and a gas-liquid separator arranged at the top of the conical cover and used for separating gas from liquid of waste gas. The utility model relates to a waste heat utilization device for waste gas in iron and steel smelting, which improves the disassembly and assembly efficiency of a filter core through the installation unit and the liquid return unit, is convenient for the later replacement or cleaning of the filter core, ensures the effective treatment of waste gas, can intensively recycle the liquid after the gas-liquid separation of the waste gas, ensures that the waste gas can be fully utilized, avoids the waste of resources and improves the practicability.
Description
Technical Field
The utility model relates to the technical field of waste gas utilization, in particular to a waste heat utilization device for waste gas of iron and steel smelting.
Background
Iron smelting is a general term of steel and iron metallurgical process, iron produced in industry is divided into pig iron and steel according to carbon content, most of modern iron making adopts blast furnace iron making, direct reduction iron making and electric furnace iron making are adopted respectively, steel making mainly adopts pig iron made by the blast furnace and sponge iron and scrap steel made by the direct reduction iron making as raw materials, steel making is carried out by different methods, iron ore is made into pig iron in an iron making furnace, pig iron is used as raw material, steel is made by different methods, and steel ingot or continuous casting blank is cast. A large amount of flue gas can be generated during steel smelting, and the waste heat can be recycled by the Rong-guang waste heat recycling device.
Retrieved under publication (bulletin) number: 202121823558.1A waste heat utilization device for waste gas from iron and steel smelting can separate and filter waste gas by arranging a first rotating rod, a second connecting pipe, a first rotating pipe of a rotating joint, a splitter plate, a first motor, a second rotating rod, a sixth conical gear, a third rotating rod, a seventh conical gear, an eighth conical gear and the like, and driving the seventh conical gear to rotate by rotating the second rotating rod, driving the eighth conical gear to rotate by rotating the seventh conical gear, driving the rotating plate to rotate by rotating the rotating plate, driving the striking rod to strike and mix filtered water, and crushing and spraying the gas discharged by the splitter plate; through setting up filter tube, first connecting pipe and second solenoid valve and cooperate and to carry out preliminary filtration to waste gas, the raw materials gets into the downside of waste gas treatment case after filtering through the filter tube, opens the second solenoid valve when the inside impurity of filter tube is great, and waste gas drives the residue and gets rid of in the filter tube.
In the above patent, the disassembly and assembly of the filter element are troublesome, the filter element needs to be cleaned or replaced in time after being used for a long time, the waste gas filtering effect is easily affected, and the liquid after the gas-liquid separation of the waste gas is difficult to collect in a concentrated manner, so that it is necessary to provide a waste heat utilization device for waste gas in steel smelting.
Disclosure of Invention
The utility model mainly aims to provide a waste heat utilization device for iron and steel smelting waste gas, which can effectively solve the problems that in the background technology, the filter core is troublesome to assemble and disassemble, the filter core needs to be cleaned or replaced in time after being used for a long time, the waste gas filtering effect is easy to influence, and the liquid after the gas-liquid separation of the waste gas is difficult to collect in a concentrated way.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the waste heat utilization device for the waste gas of the iron and steel smelting comprises a recovery unit, a processing unit arranged at the top of the recovery unit, a circulation unit arranged on the processing unit, a filter core arranged in the processing unit, an installation unit arranged at one side of the processing unit and a liquid return unit arranged in the processing unit;
the mounting unit comprises a cover plate arranged on one side of the processing unit and an L-shaped plate fixedly connected to the top of the cover plate and used for clamping and mounting the filter element;
the liquid return unit comprises a conical cover arranged between the inner walls of the treatment unit and a gas-liquid separator arranged at the top of the conical cover and used for separating waste gas from gas.
Preferably, the recovery unit comprises a recovery box and universal wheels fixedly connected to four corners of the bottom of the recovery box.
Preferably, the processing unit comprises a processing box arranged at the top of the recovery box, a rectangular opening formed at one side of the processing box, a return groove formed at one side of the processing box, and a groove formed at the top of one side of the processing box.
Preferably, the flow-through unit includes an air inlet pipe embedded under the other side of the processing box, and an exhaust hood installed at the center of the top of the processing box.
Preferably, the mounting unit further comprises a clamping hole formed in the top of the L-shaped plate, a square frame fixedly connected to one side of the covering plate, a clamping column movably arranged in the groove, a limiting plate fixedly connected to one end of the clamping column, a reset spring fixedly connected to the bottom of the limiting plate and a sealing gasket mounted on the inner wall of the square groove.
Preferably, the liquid return unit further comprises a filter screen arranged between the inner walls of the treatment tank, a liquid return table arranged below the inner part of the treatment tank, and a plurality of return pipes embedded at the bottom of the liquid return table.
Preferably, the inner diameter of the clamping hole is matched with the outer diameter of the clamping column, the inner dimension of the rectangular groove is larger than the section dimension of the rectangular frame, the section dimension of the cover plate is larger than the outer dimension of the rectangular frame, and the filter core is arranged on one side of the cover plate;
the liquid return table is of an inward concave structure, the reflux pipes extend to the inside of the recovery tank, and the filter screen is arranged between the conical cover and the liquid return table.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, the filter element is aligned to the rectangular opening and inserted, the rectangular frame enters the interior of the rectangular groove, the rectangular frame is tightly attached to the inner wall of the rectangular groove under the action of the sealing gasket to form a sealing structure, the rectangular opening and the rectangular groove are completely sealed under the full coating of the covering plate, when the filter element completely enters, the top of the L-shaped plate is positioned in the groove, under the elastic recovery performance of the return spring, the clamping column is ejected into the clamping hole through the limiting plate, so that the filter element is clamped, otherwise, when the filter element is detached, the clamping column is inserted into the circular groove at the top of the clamping column through a pin shaft, the clamping column is pressed, the return spring is compressed under stress, the clamping column is separated from the clamping hole, and the filter element can be taken out for cleaning or replacement through the covering plate, so that the dismounting efficiency of the filter element is improved, the later replacement or cleaning of the filter element is facilitated, and the effective treatment of waste gas is ensured.
2. According to the utility model, the waste gas is introduced into the treatment box through the air inlet pipe, the waste gas is intensively introduced into the gas-liquid separator at the top through the conical cover to perform gas-liquid separation operation, the separated gas continuously rises to be filtered by the filter element, the waste heat is discharged and recycled by the exhaust cover, the liquid falls into the inner cavity of the liquid return table after being filtered by the filter screen, and a plurality of return pipes embedded at the bottom of the liquid return table flow into the recovery box to collect the liquid, so that the liquid after gas-liquid separation of the waste gas can be intensively recycled, the waste gas can be fully utilized, the resource waste is avoided, and the practicability is improved.
Drawings
FIG. 1 is a schematic overall perspective view of the present utility model;
FIG. 2 is a schematic view of a partial perspective structure of the present utility model;
FIG. 3 is a schematic perspective view of a mounting unit according to the present utility model;
FIG. 4 is a schematic view of the front inner cross-section structure of the present utility model;
FIG. 5 is an enlarged schematic view of the structure of FIG. 4A according to the present utility model;
fig. 6 is an enlarged view of the structure of fig. 4B according to the present utility model.
In the figure:
1. a recovery unit; 101. a recovery box; 102. a universal wheel;
2. a processing unit; 201. a treatment box; 202. a rectangular opening; 203. a return groove; 204. a groove;
3. a flow-through unit; 301. an air inlet pipe; 302. an exhaust hood;
4. a filter element;
5. an installation unit; 501. a cover plate; 502. an L-shaped plate; 503. a clamping hole; 504. a square frame; 505. a clamping column; 506. a limiting plate; 507. a return spring; 508. a sealing gasket;
6. a liquid return unit; 601. a conical cover; 602. a gas-liquid separator; 603. a filter screen; 604. a liquid return table; 605. and (5) a return pipe.
Detailed Description
Example 1
Referring to fig. 1-6, the utility model discloses a waste heat utilization device for iron and steel smelting waste gas, which comprises a recovery unit 1, a processing unit 2 arranged at the top of the recovery unit 1, a circulation unit 3 arranged on the processing unit 2, a filter core 4 arranged inside the processing unit 2, an installation unit 5 arranged at one side of the processing unit 2 and a liquid return unit 6 arranged inside the processing unit 2;
the liquid return unit 6 includes a cone-shaped cover 601 installed between the inner walls of the processing unit 2, and a gas-liquid separator 602 for gas-liquid separation of exhaust gas installed at the top of the cone-shaped cover 601.
As shown in fig. 1, 2 and 4, the recovery unit 1 includes a recovery tank 101 and universal wheels 102 fixedly connected to four corners of the bottom of the recovery tank 101, the recovery tank 101 is used for recovering liquid after gas-liquid separation of exhaust gas, and the universal wheels 102 provide mobility of the whole device.
As shown in fig. 1, 2, 4, 5 and 6, the processing unit 2 includes a processing box 201 mounted on the top of the recovery box 101, a rectangular opening 202 formed on one side of the processing box 201, a rectangular groove 203 formed on one side of the processing box 201, and a groove 204 formed on one side top of the processing box 201, wherein the rectangular opening 202 is used for mounting the filter element 4, the rectangular groove 203 cooperates with the rectangular frame 504 to form a sealing structure, and the groove 204 is used for positioning and mounting the L-shaped plate 502.
As shown in fig. 1, 2 and 4, the flow unit 3 includes an air inlet pipe 301 embedded below the other side of the treatment tank 201, and an exhaust hood 302 installed at the top center of the treatment tank 201, where the air inlet pipe 301 is used for the inlet treatment of the iron and steel smelting waste gas, and the exhaust hood 302 recovers and utilizes the waste gas after the filtration treatment through an external structure.
As shown in fig. 1, 2, 4, 5 and 6, the mounting unit 5 includes a cover plate 501 mounted on one side of the processing unit 2, an L-shaped plate 502 fixedly connected to the top of the cover plate 501 and used for clamping and mounting the filter element 4, the mounting unit 5 further includes a clamping hole 503 formed on the top of the L-shaped plate 502, a rectangular frame 504 fixedly connected to one side of the cover plate 501, a clamping post 505 movably disposed in the groove 204, a limiting plate 506 fixedly connected to one end of the clamping post 505, a return spring 507 fixedly connected to the bottom of the limiting plate 506, and a sealing gasket 508 mounted on the inner wall of the rectangular groove 203. The inner diameter of the clamping hole 503 is matched with the outer diameter of the clamping post 505, the inner dimension of the circular groove 203 is larger than the section dimension of the circular frame 504, the section dimension of the cover plate 501 is larger than the outer dimension of the circular frame 504, and the filter core 4 is arranged on one side of the cover plate 501.
Working principle: when the filter element 4 is installed, firstly, the filter element 4 is aligned to the rectangular opening 202 and inserted into the rectangular opening 203, the rectangular frame 504 enters the inside of the rectangular opening 203, under the action of the sealing gasket 508, the rectangular opening 202 and the rectangular opening 203 are completely sealed under the full coating of the cover plate 501, when the filter element 4 completely enters, the top of the L-shaped plate 502 is positioned in the groove 204, under the elastic recovery performance of the return spring 507, the clamping post 505 is ejected into the clamping hole 503 through the limiting plate 506, so that the clamping of the filter element 4 is completed, otherwise, when the filter element 4 is detached, the clamping post 505 is inserted into the circular groove at the top of the clamping post 505 through a pin shaft and pressed, so that the return spring 507 is compressed under stress, the clamping post 505 is separated from the clamping hole 503, the filter element 4 can be taken out for cleaning or replacement through the cover plate 501, the dismounting efficiency of the filter element 4 is improved, the later stage of the filter element 4 is convenient to replace or clean, and the effective treatment of waste gas is ensured.
Example 2
Referring to fig. 1-6, the utility model discloses a waste heat utilization device for iron and steel smelting waste gas, which comprises a recovery unit 1, a processing unit 2 arranged at the top of the recovery unit 1, a circulation unit 3 arranged on the processing unit 2, a filter core 4 arranged inside the processing unit 2, an installation unit 5 arranged at one side of the processing unit 2 and a liquid return unit 6 arranged inside the processing unit 2;
the mounting unit 5 comprises a cover plate 501 mounted on one side of the processing unit 2 and an L-shaped plate 502 fixedly connected to the top of the cover plate 501 and used for clamping and mounting the filter element 4;
as shown in fig. 1, 2 and 4, the recovery unit 1 includes a recovery tank 101 and universal wheels 102 fixedly connected to four corners of the bottom of the recovery tank 101, the recovery tank 101 is used for recovering liquid after gas-liquid separation of exhaust gas, and the universal wheels 102 provide mobility of the whole device.
As shown in fig. 1, 2, 4, 5 and 6, the processing unit 2 includes a processing box 201 mounted on the top of the recovery box 101, a rectangular opening 202 formed on one side of the processing box 201, a rectangular groove 203 formed on one side of the processing box 201, and a groove 204 formed on one side top of the processing box 201, wherein the rectangular opening 202 is used for mounting the filter element 4, the rectangular groove 203 cooperates with the rectangular frame 504 to form a sealing structure, and the groove 204 is used for positioning and mounting the L-shaped plate 502.
As shown in fig. 1, 2 and 4, the flow unit 3 includes an air inlet pipe 301 embedded below the other side of the treatment tank 201, and an exhaust hood 302 installed at the top center of the treatment tank 201, where the air inlet pipe 301 is used for the inlet treatment of the iron and steel smelting waste gas, and the exhaust hood 302 recovers and utilizes the waste gas after the filtration treatment through an external structure.
As shown in fig. 4, the liquid return unit 6 comprises a conical cover 601 installed between the inner walls of the treatment unit 2, a gas-liquid separator 602 installed at the top of the conical cover 601 and used for separating gas from liquid of the exhaust gas, the conical cover 601 facilitates the concentration of the exhaust gas into the gas-liquid separator 602 for separating gas from liquid, the liquid return unit 6 further comprises a filter screen 603 installed between the inner walls of the treatment tank 201, a liquid return table 604 installed below the inner parts of the treatment tank 201, and a plurality of return pipes 605 embedded at the bottom of the liquid return table 604, the liquid return table 604 is of an inner concave structure, the plurality of return pipes 605 extend to the inside of the recovery tank 101, and the filter screen 603 is installed between the conical cover 601 and the liquid return table 604.
Working principle: waste gas passes through the inside that intake pipe 301 got into treatment box 201, and waste gas passes through conical cover 601 setting, and the gas-liquid separation operation is carried out to the inside that concentrates the gas-liquid separator 602 at entering top, and the gas after the separation continuously rises and filters by filter core 4 and discharge recovery waste heat utilization by exhaust cover 302, and liquid then falls and falls in the inner cavity of liquid return platform 604 after filtering by filter screen 603 to the collection of liquid is carried out to the inside that is inlayed to the back flow pipe 605 by liquid return platform 604 bottom to the collection of liquid, can concentrate the liquid after the gas-liquid separation of waste gas, makes waste gas can make full use of, avoids causing the wasting of resources, has improved the practicality.
Claims (7)
1. The waste heat utilization device for the waste gas of the iron and steel smelting comprises a recovery unit (1), a processing unit (2) arranged at the top of the recovery unit (1), a circulation unit (3) arranged on the processing unit (2), and a filter core (4) arranged inside the processing unit (2), and is characterized by further comprising an installation unit (5) arranged at one side of the processing unit (2) and a liquid return unit (6) arranged inside the processing unit (2);
the mounting unit (5) comprises a cover plate (501) mounted on one side of the processing unit (2) and an L-shaped plate (502) fixedly connected to the top of the cover plate (501) and used for clamping and mounting the filter element (4);
the liquid return unit (6) comprises a conical cover (601) arranged between the inner walls of the treatment unit (2), and a gas-liquid separator (602) arranged at the top of the conical cover (601) and used for separating waste gas from gas and liquid.
2. The steel smelting waste gas waste heat utilization device according to claim 1, wherein: the recovery unit (1) comprises a recovery box (101) and universal wheels (102) fixedly connected to four corners of the bottom of the recovery box (101).
3. The steel smelting waste gas waste heat utilization device according to claim 2, wherein: the processing unit (2) comprises a processing box (201) arranged at the top of the recovery box (101), a rectangular opening (202) formed on one side of the processing box (201), a return groove (203) formed on one side of the processing box (201), and a groove (204) formed at the top of one side of the processing box (201).
4. A ferrous smelting waste gas waste heat utilizing apparatus as defined in claim 3 wherein: the flow unit (3) comprises an air inlet pipe (301) embedded below the other side of the treatment box (201), and an exhaust hood (302) arranged at the center of the top of the treatment box (201).
5. A ferrous smelting waste gas waste heat utilizing apparatus as defined in claim 3 wherein: the mounting unit (5) further comprises a clamping hole (503) formed in the top of the L-shaped plate (502), a square frame (504) fixedly connected to one side of the cover plate (501), clamping columns (505) movably arranged in the grooves (204), a limiting plate (506) fixedly connected to one end of each clamping column (505), a reset spring (507) fixedly connected to the bottom of each limiting plate (506), and a sealing gasket (508) mounted on the inner wall of the square groove (203).
6. The steel smelting waste gas waste heat utilization device according to claim 5, wherein: the liquid return unit (6) further comprises a filter screen (603) arranged between the inner walls of the treatment box (201), a liquid return table (604) arranged below the inner part of the treatment box (201), and a plurality of return pipes (605) embedded at the bottom of the liquid return table (604).
7. The steel smelting waste gas waste heat utilization device according to claim 6, wherein: the inner diameter of the clamping hole (503) is matched with the outer diameter of the clamping column (505), the inner dimension of the rectangular groove (203) is larger than the section dimension of the rectangular frame (504), the section dimension of the cover plate (501) is larger than the outer dimension of the rectangular frame (504), and the filter core (4) is arranged on one side of the cover plate (501);
the liquid return table (604) is of an inward concave structure, a plurality of return pipes (605) extend to the inside of the recovery tank (101), and the filter screen (603) is arranged between the conical cover (601) and the liquid return table (604).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321250850.8U CN220062617U (en) | 2023-05-23 | 2023-05-23 | Waste heat utilization device for waste gas from iron and steel smelting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321250850.8U CN220062617U (en) | 2023-05-23 | 2023-05-23 | Waste heat utilization device for waste gas from iron and steel smelting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220062617U true CN220062617U (en) | 2023-11-21 |
Family
ID=88789170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321250850.8U Active CN220062617U (en) | 2023-05-23 | 2023-05-23 | Waste heat utilization device for waste gas from iron and steel smelting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220062617U (en) |
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2023
- 2023-05-23 CN CN202321250850.8U patent/CN220062617U/en active Active
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