CN211112067U - Molten iron chute - Google Patents
Molten iron chute Download PDFInfo
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- CN211112067U CN211112067U CN201921620322.0U CN201921620322U CN211112067U CN 211112067 U CN211112067 U CN 211112067U CN 201921620322 U CN201921620322 U CN 201921620322U CN 211112067 U CN211112067 U CN 211112067U
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Abstract
The utility model provides a molten iron chute for accept the molten iron of blast furnace taphole, it includes: the chute body comprises drainage grooves with the upper parts arranged in an inclined manner and funnel-shaped lead-in grooves with the lower parts; the chute body is detachably inserted and arranged on the working platform to form support and fixation for the chute body, the cross section of the drainage groove is U-shaped, molten iron flows through the drainage groove and flows into the introduction groove, and the dust removal device is covered above the chute body. The molten iron chute can make the molten iron reduce the area of contact with the air at the in-process of pouring into the hot metal bottle to can effectively avoid the molten iron to be oxidized by the oxygen in the air under the high temperature, simultaneously, establish the dust collector in chute body top through the cover, the smoke and dust that can effectual absorption tapping in-process produced can effectively reduce the pollution to the environment, thereby has better result of use.
Description
Technical Field
The utility model relates to an iron works molten iron transportation equipment technical field, in particular to molten iron chute.
Background
In the process of steel smelting, high-temperature molten iron smelted by a blast furnace needs to be drained into a molten iron tank and conveyed to a converter for further smelting so as to obtain molten steel with qualified components and temperature. In the prior art, the blast furnace molten iron directly flows into the molten iron tank after flowing out of the tapping groove. Because there is not any safeguard measure when the blast furnace molten iron flows to the hot metal bottle from the tapping chute, therefore can appear various drawbacks, its main performance is: firstly, when molten iron flows into a molten iron tank from a tapping hole, the molten iron is completely exposed in the surrounding air, and meanwhile, because the tapping flow of a blast furnace is limited and the tapping time is generally long, the temperature loss in the flowing process of the molten iron is large during tapping, and energy is wasted; secondly, because the high-temperature molten iron is easy to react with oxygen in the air and is oxidized, a large amount of molten iron is oxidized secondarily due to the fact that the molten iron is exposed and flows out, and the final yield of the molten iron is reduced; thirdly, the molten iron is exposed in the air to generate a large amount of smoke dust, one part of the smoke dust is iron oxide smoke dust generated by oxidizing the high-temperature molten iron, and the other part of the smoke dust is smoke dust generated by separating out C in the molten iron due to cooling.
In addition, in the existing production, some molten iron chutes appear, but the structure is complex, the cost is high, and the capping devices are only operated to a steel-making workshop from an iron-making plant after molten iron is filled in a molten iron tank to be in a working state. Because the time for injecting the molten iron into the hot metal ladle is long, some problems existing in the process of injecting the molten iron into the hot metal ladle, such as iron oxide smoke generated after the molten iron is oxidized and oxidized, smoke caused by C precipitated in the molten iron due to temperature reduction, and the like, are not solved at present.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention is directed to a molten iron chute, which can reduce the contact area between molten iron and air during the process of pouring molten iron into a molten iron tank main body.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a molten iron chute for receiving molten iron from a tap hole of a blast furnace, comprising: the chute body comprises drainage grooves with the upper parts arranged in an inclined manner and funnel-shaped lead-in grooves with the lower parts; the chute body is detachably inserted and arranged on the working platform to support and fix the chute body, the cross section of the drainage groove is U-shaped, molten iron flows through the drainage groove and flows into the introduction groove, and a dust removal device is covered above the chute body.
Furthermore, the working platform is provided with a mounting hole for inserting the small-diameter end of the lead-in groove.
Furthermore, a radially outward-protruding mounting seat is constructed on the outer peripheral wall of the leading-in groove, the mounting seat abuts against the upper surface of the working platform after the leading-in groove is inserted into the mounting hole, and a plurality of waist-shaped holes which are circularly distributed by taking the central axis of the leading-in groove as the center of a circle are constructed on the mounting seat.
Furthermore, refractory materials are built on the inner side surfaces of the drainage groove and the introduction groove.
Furthermore, a fire-resistant curtain which is detachably connected is arranged at the lower end of the dust removal device.
Further, the axis of drainage groove is 15 ~ 25 with the contained angle of horizontal direction.
Compared with the prior art, the utility model discloses following advantage has:
(1) molten iron chute, through the drainage groove and the introduction groove that set up, and set up the dust collector in chute body top, can make the molten iron at the in-process that pours into the hot metal bottle, reduce the area of contact with the air to can effectively avoid the molten iron to be oxidized by the oxygen in the air under high temperature, in addition, establish the dust collector in chute body top through the cover, can effectually absorb the smoke and dust that the in-process produced of tapping, thereby reduce the pollution to the environment.
(2) The mounting hole that sets up to the installation of chute body and work platform is convenient for.
(3) Through the mount pad that sets up, and the waist shape hole on the mount pad, in order to be favorable to realizing the demountable installation of chute body on the one hand, on the other hand the introduction groove can rotate certain angle for work platform to it is adjustable to realize the position of drainage groove.
(4) The drainage groove and the leading-in groove are internally coated with refractory materials so as to protect the chute body, and therefore the service life of the chute body is prolonged.
(5) The fire-resistant check curtain that sets up can further block the naked part in chute body top to further reduce the contact of molten iron and air, and then can reduce the preparation rate that can improve metal simultaneously by the oxidation.
(6) The molten iron can smoothly flow into the guide groove from the drainage groove, so that the phenomenon that the molten iron splashes due to the fact that the angle is too large and the flow speed of the molten iron is influenced due to the fact that the angle is too small can be avoided.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic structural view of a molten iron chute according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a chute body according to an embodiment of the present invention;
fig. 3 is a schematic structural view illustrating a molten iron chute and a molten iron tank according to an embodiment of the present invention;
FIG. 4 is a right side view of FIG. 3;
FIG. 5 is a cross-sectional view A-A of FIG. 3;
description of reference numerals:
1-a chute body, 2-a working platform, 3-a dust removal device, 4-a hot metal ladle body, 5-a cover body, 6-a fastening chain, 7-a walking trolley, 8-a liquid level detection device and 9-a fire-resistant curtain;
11-a drainage groove, 12-an introduction groove, 13-a mounting seat, 14-a waist-shaped hole, 21-a fixing hole, 41-a hoisting shaft, 51-an iron inlet, 52-a first iron outlet and 53-a second iron outlet.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The present embodiment relates to a molten iron chute for receiving molten iron from a taphole of a blast furnace, an exemplary structure of which is shown in fig. 1, and the molten iron chute of the present embodiment includes a chute body 1, the chute body 1 includes a drainage groove 11 with an upper portion arranged in an inclined manner, and an introduction groove 12 with a lower portion in a funnel shape; the detachable cartridge of chute body 1 is on work platform 2 to constitute the support and the fixing to chute body 1, and the cross-sectional shape of drainage groove 11 is the U type, and the molten iron flows through drainage groove 11 and flows into in the introduction groove 12, is covered in the top of chute body 1 and is equipped with dust collector 3.
It should be noted that the work platform 2 of the present embodiment is a platform made of building materials such as masonry or concrete, and is used for an operator to perform installation operation of equipment or overhaul of the equipment. In order to facilitate the installation of the chute body 1 and the working platform 2, as shown in fig. 1 and 2, a mounting hole for inserting the small-diameter end of the introduction groove 12 is formed in the working platform 2. That is to say that chute body 1 is connected with the mounting hole on work platform 2 through the path end of leading-in groove 12, and the form of leading-in groove 12 and mounting hole accessible joint is connected certainly, because during the joint cooperation, probably cause the interference fit of the two, or the skew scheduling problem of leading-in groove 12 that leads to the axis of leading-in groove 12 and mounting hole is misaligned to dismantle when equipment overhauls or chute body 1 changes wastes time and energy.
In order to facilitate the chute body 1 to be conveniently and quickly detached, in this embodiment, a radially protruding mounting seat 13 is configured on the outer peripheral wall of the introduction groove 12, and after the introduction groove 12 is inserted into the mounting hole, the mounting seat 13 abuts against the upper surface of the working platform 2, at this time, the aperture of the mounting hole is slightly larger than the outer diameter of the introduction groove 12 at the position matched with the mounting hole, so that a small gap exists between the introduction groove 12 and the mounting hole. Meanwhile, a plurality of waist-shaped holes 14 which are distributed in a circular shape with the central axis of the leading-in groove 12 as the center of a circle are formed on the mounting seat 13. In this embodiment, there are 4 uniformly distributed waist-shaped holes 14, and the connecting line of the symmetric centers of the 4 waist-shaped holes 14 forms a circle, and the center of the circle is located on the axis of the introduction groove 12.
Corresponding to waist shape hole 14, be equipped with circular form fixed orifices 21 on work platform 2, through waist shape hole 14 and fixed orifices 21's cooperation, the demountable installation of the chute body 1 of being convenient for on the one hand, on the other hand can realize leading-in groove 12 for work platform 2's rotation to through leading-in groove 12 pivoted angle, realize the regulation of drainage groove 11 position, and then be convenient for with the molten iron exit linkage of blast furnace.
The chute body 1 of the embodiment can be made into the drainage groove 11 and the introduction groove 12 by carbon steel, and meanwhile, refractory materials, such as refractory bricks, aluminum silicate fiber cotton or pouring materials, are built on the inner side surfaces of the drainage groove 11 and the introduction groove 12. So as to be capable of containing molten iron.
The cross-sectional shape of drainage groove 11 of this embodiment is the U type, and the opening size of its upper end is less than the circular-arc diameter size of lower extreme to can prevent overflowing of molten iron in the in-process that the molten iron flows through drainage groove 11. In addition, the axis of drainage groove 11 is 15 ~ 25 with the contained angle of horizontal direction. Thereby being beneficial to the smooth flowing of the molten iron from the drainage groove 11 to the introduction groove 12 and effectively avoiding the splashing of the molten iron caused by the overlarge angle and the influence on the flow speed of the molten iron caused by the overlarge angle.
In order to further block the exposed part above the chute body 1 so as to reduce the contact between molten iron and air, a refractory curtain which is detachably connected and not shown in the figure is arranged at the lower end of the dust removal device 3, and the refractory curtain is covered above the chute body 1, so that the oxidation of the molten iron can be effectively reduced, and the metal yield is improved.
The molten iron chute of the present embodiment is practically applied as shown in fig. 3 to 5, a movable molten iron tank main body 4 is provided below the molten iron chute, that is, the molten iron tank main body 4 is provided on the traveling trolley 7, and the movement of the molten iron tank main body 4 is realized by the movement of the traveling trolley 7. A lid body 5 is closed at the spout of the hot metal ladle body 4, the lid body 5 is fixed to the hot metal ladle body 4, and a hot metal inlet 51 for receiving molten metal flowing out from the hot metal chute and at least one tap hole for pouring the molten metal in the hot metal ladle body 4 are provided in the lid body 5. The hot metal chute according to the present embodiment is preferably the hot metal chute according to the first embodiment.
Referring to fig. 1, fig. 3, fig. 4 and fig. 5, molten iron from a blast furnace molten iron outlet can be poured into the hot metal ladle body 4 through the drainage groove 11 and the guide groove 12, and in order to determine the level of the molten iron poured into the hot metal ladle body 4, a liquid level detection device 8 is provided on the work platform 2 above the hot metal ladle body 4, and includes an image collector capable of collecting the level through one tap hole thereof, so as to monitor the level of the molten iron. In this embodiment, the image collector is preferably a camera, and both the connection mode and the image transmission technology can be implemented by means of the prior art.
In order to fix the lid 5 to the hot metal ladle body 4, in the embodiment, a fastening chain 6 is fixedly disposed on the lid 5, and a fastening assembly capable of fastening the fastening chain 6 is disposed on the hot metal ladle body 4 corresponding to the fastening chain 6. Structurally, the fastening assembly comprises a mounting seat 13 formed on the peripheral wall of the molten iron tank body 4, a pin shaft capable of being arranged on the mounting seat 13 and a nut arranged at one end of the pin shaft, and the fastening assembly can be of a split pin structure or a check ring structure except the nut. Through the fastening chain 6 and the fastener that set up, can fix lid 5 on hot metal bottle main part 4 to when the hot metal bottle body needs maintenance, through the dismantlement of fastening chain 6 and fastener, so that lid 5 can be dismantled for the hot metal bottle body.
In this embodiment, two tapholes, such as a first taphole 52 and a second taphole 53 shown in fig. 5, are formed on the lid body 5, and the first taphole 52 and the second taphole 53 are arranged symmetrically with respect to a tilting axis, not shown, of the hot metal ladle body 4. So that the hot metal ladle body 4 can pour molten iron in two directions. Of course, the number of the tapholes may be one or three or more, based on the convenience of use and the comprehensive consideration of the area of the covered taphole, two tapholes are preferred, one of the tapholes is aligned with the camera, and the first taphole 52 is aligned with the camera in this embodiment, so that the camera can observe the liquid level of the molten iron in the molten iron tank main body 4 through the taphole.
In this embodiment, as shown in fig. 3 and 4, the lid body 5 is filled with a refractory material such as a L2O 3-SiC-C castable or alumina silicate fiber felt (containing zirconium) so as to exert a heat retaining effect on the molten iron in the molten iron tank main body 4 and improve the energy efficiency of the molten iron during storage and transportation, and a hoisting shaft 41 is provided on the outer circumferential wall of the molten iron tank main body 4 in order to facilitate hoisting of the molten iron tank main body 4.
In this embodiment, a refractory curtain 9 capable of blocking the iron inlet 51 is provided at the lower end of the introduction groove 12. So that the gap between the iron inlet 51 and the introduction groove 12 can be sufficiently shielded, thereby effectively reducing the contact between the molten iron and the air and further improving the yield of the metal.
The molten iron chute of this embodiment is through drainage groove 11 and the introduction groove 12 that sets up, and set up the dust collector 3 in chute body 1 top, can make the molten iron at the in-process of pouring into molten iron jar main part 4, reduce the area of contact with the air, and can effectively avoid the molten iron to be oxidized by the oxygen in the air under the high temperature, in addition, establish the dust collector 3 in chute body 1 top through the cover, can effectually absorb the smoke and dust that the tapping in-process produced, thereby reducible pollution to the environment, and better result of use has.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A molten iron chute for receiving molten iron from a taphole of a blast furnace, comprising: the chute body (1), the said chute body (1) includes the drainage groove (11) that the upper portion presents the oblique form and arranges, and the lower portion presents the leading-in groove (12) of the funnel-shaped form; the detachable cartridge of chute body (1) is on work platform (2) to constitute right the support and the fixing of chute body (1), the cross-sectional shape of drainage groove (11) is the U type, the molten iron flows through drainage groove (11) and flows in leading-in groove (12), in the top cover of chute body (1) is equipped with dust collector (3).
2. The molten iron chute of claim 1, characterized in that: and the working platform (2) is provided with a mounting hole for inserting the small-diameter end of the lead-in groove (12).
3. The molten iron chute of claim 2, characterized in that: the outer peripheral wall of the leading-in groove (12) is provided with a radially outward-protruding mounting seat (13), the mounting seat (13) abuts against the upper surface of the working platform (2) after the leading-in groove (12) is inserted into the mounting hole, and the mounting seat (13) is provided with a plurality of waist-shaped holes (14) which are circularly distributed by taking the central axis of the leading-in groove (12) as the center of a circle.
4. The molten iron chute of claim 1, characterized in that: and refractory materials are built on the inner side surfaces of the drainage groove (11) and the introduction groove (12).
5. The molten iron chute of claim 1, characterized in that: a fire-resistant curtain which is detachably connected is arranged at the lower end of the dust removing device (3).
6. The molten iron chute of any one of claims 1 to 4, wherein: the included angle between the central axis of the drainage groove (11) and the horizontal direction is 15-25 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921620322.0U CN211112067U (en) | 2019-09-26 | 2019-09-26 | Molten iron chute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921620322.0U CN211112067U (en) | 2019-09-26 | 2019-09-26 | Molten iron chute |
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| Publication Number | Publication Date |
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| CN211112067U true CN211112067U (en) | 2020-07-28 |
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| CN201921620322.0U Active CN211112067U (en) | 2019-09-26 | 2019-09-26 | Molten iron chute |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814388A (en) * | 2021-08-06 | 2021-12-21 | 东风本田汽车零部件有限公司 | Automatic molten iron transferring device |
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2019
- 2019-09-26 CN CN201921620322.0U patent/CN211112067U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814388A (en) * | 2021-08-06 | 2021-12-21 | 东风本田汽车零部件有限公司 | Automatic molten iron transferring device |
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