CN217179293U

CN217179293U - High-temperature flue gas flashboard device

Info

Publication number: CN217179293U
Application number: CN202123041866.1U
Authority: CN
Inventors: 陈逢胜; 陈芹; 王岗
Original assignee: China ENFI Engineering Corp
Current assignee: China ENFI Engineering Corp
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-08-12
Anticipated expiration: 2031-12-06

Abstract

The utility model discloses a high temperature flue gas flashboard device. The device includes: the two parallel flashboard guide rails are distributed on two sides of a smoke outlet of the top-blowing furnace, two ends of the two parallel flashboard guide rails extend outwards towards two ends of the smoke outlet respectively, and the extending length of at least one end of the two parallel flashboard guide rails is greater than that of the smoke flashboard; the smoke gate plate comprises at least one group of tube rows, a distribution pipe and a collection pipe, wherein the distribution pipe and the collection pipe are respectively connected with inlets and outlets of the tube rows; and the gate plate rollers are arranged on the flue gas gate plate in pairs so as to drive the flue gas gate plate to slide along the two gate plate guide rails. The utility model discloses a removal of flue gas flashboard is accomplished to flashboard guide rail and gyro wheel for thereby the flue gas flashboard can cover top-blown furnace outlet flue and effectively separate top-blown furnace and exhaust-heat boiler, and the flue gas flashboard still passes through the water-cooling mode, has reduced the fuel consumption that the top-blown furnace was opened, has improved the operation rate of top-blown furnace, has reduced manufacturing cost.

Description

High-temperature flue gas flashboard device

Technical Field

The utility model relates to a metal smelting equipment technical field especially relates to a high temperature flue gas flashboard device.

Background

The non-ferrous metal (copper, lead, tin and nickel) smelting is used for a top blowing furnace, concentrate is added from a top feeding hole, oxygen-enriched air is blown into a hearth melting pool through a spray gun, high-temperature flue gas generated by smelting reaction is discharged from a top smoke outlet and enters a waste heat boiler, the flue gas is cooled to remove dust and produce acid, and purified tail gas is discharged into the atmosphere.

Because exhaust-heat boiler often goes wrong, in order to overhaul exhaust-heat boiler, the top-blown converter must stop feeding to control the heat that gets into exhaust-heat boiler as far as possible, otherwise exhaust-heat boiler overhauls and can't go on. In addition, when the top-blown converter is stopped for a short time, the top-blown converter needs to be kept at a certain temperature so as to be short in starting time when the top-blown converter is restarted. Based on the two situations, a set of system needs to be arranged between the smoke outlet of the top-blowing furnace and the waste heat boiler so as to separate the top-blowing furnace and the waste heat boiler when needed. However, the smoke temperature at the joint of the top-blown furnace smoke outlet and the waste heat boiler is very high, and some smoke temperatures can reach 1500 ℃, so that the isolation system is difficult to arrange at the part.

At present, no relevant isolation system is arranged at the interface between a top-blown furnace flue gas outlet and a waste heat boiler; during production actual operation, can insert the steel sheet, be equipped with simple stopper fire-resistant cellucotton measure, nevertheless the steel sheet is often burnt out, and can't be sealed, therefore keeps apart the effect limited, leads to exhaust-heat boiler to overhaul the difficulty. In addition, when the waste heat boiler needs to be overhauled or the top-blowing furnace is temporarily shut down, the waste heat boiler can only be slowly cooled down when the top-blowing furnace is needed to be overhauled, and then the overhauling work is carried out; when the top-blown converter is put into production again, the temperature needs to be raised slowly for a long time, and a large amount of fuel is consumed, so that the operation rate is reduced, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high temperature flue gas flashboard device to when needing, for example when exhaust-heat boiler overhauls, keep apart open top blowing stove outlet flue and exhaust-heat boiler effectively through removing the flue gas flashboard, thereby make things convenient for preheating boiler's maintenance, in addition, still can improve the operating rate of top blowing stove, reduction in production cost.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a pair of high temperature flue gas flashboard device, include:

the two parallel flashboard guide rails are distributed on two sides of a smoke outlet of the top-blowing furnace, two ends of the flashboard guide rails respectively extend outwards from two ends of the smoke outlet of the top-blowing furnace, and the length of the extension of at least one end of the flashboard guide rails is greater than that of the smoke flashboard;

the smoke gate plate comprises one or more groups of coiled tube rows, and a distribution tube and a collection tube which are respectively connected with an inlet and an outlet of the tube row, wherein the distribution tube is used for distributing cold water for the tube rows, the collection tube is used for collecting the cold water discharged by the tube rows and outputting the cold water, and the area of the smoke gate plate can cover a smoke outlet of the top-blowing furnace;

and the gate plate rollers are installed on the flue gas gate plate in pairs so as to drive the flue gas gate plate to slide along the two parallel gate plate guide rails.

Optionally, the high temperature flue gas damper apparatus further comprises: the cooling water pipe comprises a first metal hose and a second metal hose, wherein one end of the first metal hose is connected with the distribution pipe, and the other end of the first metal hose is connected with the cooling water pipe so as to convey water in the cooling water pipe into the distribution pipe; one end of the second metal hose is connected with the collecting pipe, and the other end of the second metal hose is connected with the water return pipe, so that the cold water collected by the collecting pipe is returned through the water return pipe.

The first metal hose is connected with the water inlet of the distribution pipe, and the first metal hose is also connected with a cooling water pipe through a cooling water inlet; the second metal hose is connected with the collecting pipe and used for outputting the cold water collected by the collecting pipe.

Optionally, the distribution tubes and headers are spaced apart and located on either side of the tube rows.

Optionally, two of the ram rollers of each pair are mounted on the distribution pipe and the collection pipe, respectively.

Optionally, the two rollers of each pair of shutter rollers are mounted outside the distribution pipe and the collection pipe, respectively.

Optionally, the tube rows are coiled by steel tubes.

Optionally, the high temperature flue gas damper apparatus further comprises: many are located the rail brackets of flashboard guide rail below, rail brackets follows flashboard guide rail width direction interval arrangement for support and fix the flashboard guide rail.

Optionally, the high temperature flue gas damper apparatus further comprises: and the supporting beams are arranged between the two flashboard guide rails outside the smoke outlet of the top-blowing furnace at intervals and are used for parking and supporting the smoke flashboards.

Optionally, the flue gas damper further comprises: the lifting lugs are arranged in pairs, and two lifting lugs in each pair are respectively arranged on the outer sides of the distribution pipe and the collecting pipe.

Optionally, the distribution pipe and the collecting pipe are further provided with a drain for draining cold water.

Compared with the prior art, the high-temperature flue gas gate plate device of the utility model completes the movement of the flue gas gate plate through the gate plate guide rail and the roller; the smoke gate plate moves to the smoke outlet of the top-blown furnace to cover the smoke outlet of the top-blown furnace, so that the top-blown furnace and the waste heat boiler are effectively separated; the cold water is introduced into the flue gas gate plate, so that the fuel consumption of the blow-in of the top-blown converter is reduced, the operation rate of the top-blown converter is improved, and the production cost is reduced. Additionally, the utility model discloses well metal collapsible tube's setting for it is more convenient that the device removes.

The utility model discloses under the high temperature environment of top-blown furnace exhanst gas outlet, owing to have reliable water cooling, and convenient operation, sealed effect is better to for exhaust-heat boiler overhauls creates better operational environment, shortened exhaust-heat boiler's maintenance time and the time that the top-blown furnace opened the stove again greatly, reduced the fuel consumption that the top-blown furnace opened the stove, improved the operation rate, reduced manufacturing cost.

Drawings

FIG. 1 is a front view of the high temperature flue gas gate device of the present invention in use and in an unused state;

fig. 2 is a top view of the high-temperature flue gas gate device of the present invention in a use state.

In fig. 1-2, 11 tube rows, 12 distribution tubes, 13 collection tubes, 14 evacuation ports, 20 gate guide rails, 21 guide rail supports, 22 support beams, 30 gate rollers, 41 first metal hoses, 411 cooling water inlets, 42 second metal hoses, 421 cooling water outlets, 50 top-blown furnaces, 51 top-blown furnace smoke outlets, 61 preheating boiler inlets, 70 cooling water tubes, 121 first lifting lugs, and 131 second lifting lugs.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

FIG. 1 schematically shows a front view of a high temperature flue gas shutter device in use and in non-use, i.e. a schematic view showing a state where the flue gas shutter is inserted to cover and extract a top-blown furnace flue gas outlet, and the right side of FIG. 1 only schematically shows the structure of a part of the flue gas shutter in an extracted state, not the whole; fig. 2 schematically shows the structure of the high-temperature flue gas gate plate device in a use state, namely the structure when the flue gas gate plate covers the smoke outlet of the top-blown converter.

The utility model provides a pair of high temperature flue gas flashboard device, include: two parallel flashboard guide rails 20, flue gas flashboard and install the flashboard gyro wheel 30 on the flue gas flashboard in pairs, flashboard gyro wheel 30 can drive the flue gas flashboard along two parallel flashboard guide rails 20 horizontal slip to can make the flue gas flashboard cover top-blown furnace outlet 51, as shown in fig. 1 left side, and then separate top-blown furnace outlet 51 and exhaust-heat boiler entry 61.

The flue gas damper may comprise a tube bank 11, a distribution tube 12 and a header 13. The utility model discloses in the area of flue gas flashboard is for covering top-blown furnace outlet 51. The tube bank 11 may be one or more tube banks 11, and the tube bank 11 is formed by winding steel tubes, as shown in fig. 2, and is sixteen tube banks 11 formed by winding steel tubes. The inlet of each group of pipe rows 11 is connected with a distribution pipe 12, and each group of pipe rows 11 distributes cold water through the distribution pipe 12; the outlet of the tube row 11 in each group is connected with a collecting pipe 13, and the cold water discharged from the tube row 11 in each group is collected and output through the collecting pipe 13. Further, as shown in fig. 2, the distribution pipe 12 and the collection pipe 13 are spaced apart and located on both sides of the pipe row 11, i.e., in the same direction as the shutter guide 20, and the inlet of the pipe row 11 is located on the distribution pipe 12 side and the outlet is located on the collection pipe 13 side. Further, the flue gas damper may further comprise a housing, which is wrapped outside the tube row 11 to further seal the top-blown converter smoke outlet 51. The flue gas flashboard of the utility model adopts the water cooling pipe row 11, so that the flue gas flashboard can be used at high temperature; of course, the flue gas damper can also be non-water-cooled, for example, the flue gas damper can be made of refractory casting material resistant to high temperatures. The outer side of the distribution pipe 12 is further provided with a first lifting lug 121, the outer side of the collecting pipe 13 is further provided with a second lifting lug 131, and the first lifting lug 121 and the second lifting lug 131 are oppositely arranged and used for lifting the flue gas gate plate. In addition, optionally, a drain 14 may be provided on the outside of the distribution pipe 12 and the collection pipe 13 to drain the cold water therein when necessary.

In an optional embodiment, the high temperature flue gas damper apparatus may further include: a metal hose. For example, the metal hoses may include a first metal hose 41 and a second metal hose 42, one end of the first metal hose 41 is connected to the water inlet of the distribution pipe 12, and the other end of the first metal hose 41 is connected to the external cooling water pipe 70 through the cooling water inlet 411, so that the cold water in the cooling water pipe 70 is distributed to each group of pipe rows 11 through the first metal hose 41 and the distribution pipe 12 in sequence; one end of the second metal hose 42 is connected to the header 13, and the other end is connected to a return pipe through a cooling water outlet 421, so that the cold water collected by the header 13 is returned through the second metal hose 12 and the return pipe to be reused. The metal hose is arranged, so that the high-temperature flue gas gate plate device can move more conveniently, and the flue gas gate plate can be reliably supplied with cooling water in the whole operation process. It should be noted that the present invention employs a hose made of metal, but the hose material is not limited thereto.

The two parallel gate plate guide rails 20 are distributed on two sides of a smoke outlet 51 of the top-blowing furnace, two ends of each gate plate guide rail extend out of two ends of the smoke outlet 51 of the top-blowing furnace respectively, and the length of each gate plate extended out of at least one end of each gate plate guide rail is greater than that of each smoke gate plate. As shown in FIG. 2, the length of the shutter guide 20 on the right side of the top-blowing furnace smoke outlet 51 is greater than that of the smoke shutter, so that when the top-blowing furnace smoke outlet 51 is not required to be covered, the smoke shutter is drawn out to be parked on the right shutter guide 20, and thus the smoke transmission of the top-blowing furnace and the waste heat boiler is not hindered.

Optionally, the high-temperature flue gas damper apparatus may further include: a plurality of rail brackets 21 located below the shutter rail 20, the rail brackets 21 being arranged at intervals in the width direction of the shutter rail 20, for supporting and fixing the shutter rail 20.

Optionally, the high-temperature flue gas damper apparatus may further include: the supporting beams 22 are arranged between the two gate plate guide rails 20 outside the smoke outlet 51 of the top-blowing furnace at intervals, and play a supporting role in supporting the smoke gate plates when the smoke gate plates need to be parked.

The gate rollers 30 are mounted in pairs on the flue gas gate to drive the flue gas gate to slide along two parallel gate guide rails 20. Further, two rollers of each pair of shutter rollers 30 are mounted on the distribution pipe 12 and the collection pipe 13, respectively. Further, as shown in fig. 2, two rollers of each pair of shutter rollers 30 are installed outside the distribution pipe 12 and the collection pipe 13, respectively. The utility model discloses set up guide rail and gyro wheel, made things convenient for the operation of flue gas flashboard, reduced intensity of labour.

The following description is made on the working state of the high-temperature flue gas gate of the present invention: when the top-blown furnace is in normal production, the flue gas gate is in a drawn-out state and is placed on the gate guide rail 20 outside the flue outlet 51 of the top-blown furnace. When the top-blown boiler and the waste heat boiler are required to be separated, cooling water is introduced into the flue gas gate plate, the flue gas gate plate is pushed towards the smoke outlet 51 of the top-blown boiler, the gate plate idler wheel 30 rolls on the gate plate guide rail 20 to drive the flue gas gate plate to reach the smoke outlet 51 of the top-blown boiler, and the flue gas gate plate is inserted between the top-blown boiler and the preheating boiler and covers the smoke outlet 51 of the top-blown boiler, so that the top-blown boiler and the waste heat boiler are separated. The top-blown furnace outlet 51 is located on one side of the top-blown furnace 50 in FIG. 2.

The utility model discloses, ordinary flue gas flashboard is put on the outside flashboard guide rail 20 of top-blown furnace outlet 51, does not influence the normal production of top-blown furnace. When the top-blown converter and the waste heat boiler need to be separated, the flue gas gate plate is pushed into the smoke outlet 51 of the top-blown converter, the smoke outlet 51 of the top-blown converter is covered, and the top-blown converter and the waste heat boiler are separated. The utility model discloses the flue gas flashboard adopts the water-cooling mode, can the wide application in actual production. Moreover, through detection, the smoke gate plate has good use condition, does not burn out and the like, has good sealing effect, creates a better working environment for overhauling the waste heat boiler, greatly shortens the overhauling time of the waste heat boiler and the time for restarting the top-blown boiler, reduces the fuel consumption for restarting the top-blown boiler, improves the operation rate and reduces the production cost.

The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A high temperature flue gas flashboard device, its characterized in that includes:

2. The high temperature flue gas shutter apparatus of claim 1, further comprising: a first metal hose and a second metal hose, wherein,

one end of the first metal hose is connected with the distribution pipe, and the other end of the first metal hose is connected with the cooling water pipe;

one end of the second metal hose is connected with the collecting pipe, and the other end of the second metal hose is connected with the water return pipe.

3. The high temperature flue gas damper apparatus of claim 1, wherein said distribution tubes and headers are spaced apart and located on opposite sides of said tube bank.

4. A high temperature flue gas shutter apparatus according to claim 3, wherein two of the shutter rollers of each pair are mounted on the distribution pipe and the header pipe, respectively.

5. A high temperature flue gas shutter arrangement according to claim 4, wherein two of the shutter rollers of each pair are mounted outside the distribution pipe and the header pipe, respectively.

6. The high temperature flue gas damper apparatus of claim 1, wherein the tube bank is coiled from steel tubing.

7. The high temperature flue gas shutter apparatus of claim 1, further comprising: many are located the rail brackets of flashboard guide rail below, rail brackets follows flashboard guide rail width direction interval arrangement for support and fix the flashboard guide rail.

8. The high temperature flue gas shutter apparatus of claim 1, further comprising: and the supporting beams are arranged between the two flashboard guide rails outside the smoke outlet of the top-blowing furnace at intervals.

9. The high temperature flue gas damper apparatus of claim 1, wherein the flue gas damper further comprises: the lifting lugs are arranged in pairs, and two lifting lugs in each pair are respectively arranged on the outer sides of the distribution pipe and the collecting pipe.

10. The high temperature flue gas shutter apparatus of claim 1, wherein evacuation ports for evacuating cold water are provided on the distribution pipe and the collection pipe.