CN109735672B - Water collecting and draining method and device for blast furnace hearth - Google Patents
Water collecting and draining method and device for blast furnace hearth Download PDFInfo
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- CN109735672B CN109735672B CN201910198938.1A CN201910198938A CN109735672B CN 109735672 B CN109735672 B CN 109735672B CN 201910198938 A CN201910198938 A CN 201910198938A CN 109735672 B CN109735672 B CN 109735672B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 150
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 39
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 35
- 239000011449 brick Substances 0.000 claims abstract description 34
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 12
- 239000012466 permeate Substances 0.000 abstract description 5
- 238000009825 accumulation Methods 0.000 abstract description 3
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Blast Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention relates to a water collecting and draining method and device for a blast furnace hearth, and belongs to the technical field of metallurgy. The water collecting and draining device is arranged on the side wall of the blast furnace hearth, and water in the blast furnace flows downwards along the inner side of the cooling wall and the ramming material between the cooling wall and the furnace shell and enters the water collecting and draining box through the water inlet holes on the upper transverse plate of the water collecting and draining box and the water inlet holes on the vertical plate of the inner side surface. Through collecting the water leaked from the blast furnace, and then draining the water periodically, the disordered flow of the water in the blast furnace is avoided, and the local accumulation is generated, so that the water permeates into the center of the blast furnace and erodes the carbon bricks after being gasified at high temperature. Meanwhile, the drain pipe is not directly contacted with various ramming materials and grouting materials in the blast furnace, water is collected through the water collecting and draining box and then is drained from the drain pipe, and the situation that the drain pipe is blocked and cannot drain water is effectively avoided.
Description
Technical Field
The invention belongs to the technical field of metallurgy, and particularly relates to a water collecting and draining method and device for a blast furnace hearth.
Background
The blast furnace hearth is a key part of the blast furnace and is mainly used for storing molten iron and slag with the temperature of about 1400-1600 ℃ and sealing high-temperature high-pressure coal gas, and the hearth is required to be safe and long in service life. The erosion condition of the carbon bricks at the lower part of the blast furnace hearth directly affects the safety and the longevity of the hearth.
Water leaked from cooling equipment such as a blast furnace tuyere, a cooling wall and the like permeates downwards along the surface of the cooling equipment, gradually deposits on the cold surface of a carbon brick at the lower part of a hearth, permeates from the cold surface of the carbon brick to the hot surface of the carbon brick along a gap, and reacts with the carbon brick after being gasified into water vapor at high temperature to continuously erode the carbon brick, so that the safety of the hearth is endangered. How to drain water becomes an important factor affecting the length of hearth life.
The traditional hearth drainage method is to drain water at the bottom and the side wall of the blast furnace by burying pipes, the mode needs that water in the blast furnace flows to the pipe orifice of the burying pipes and flows out by itself, but the flow of the water in the furnace is not controlled, if the water flows to the center of the blast furnace, erosion is caused to carbon bricks after the water is gasified at a local high temperature, the pipe orifice is directly contacted with various ramming materials grouting materials in the blast furnace, the blockage is very easy, and the actual drainage effect is poor.
Disclosure of Invention
In view of the above, the present invention aims to provide a water collecting and draining method and device for a blast furnace hearth, which solve the problem that the leaked water from the equipment continuously erodes carbon bricks by collecting and draining the leaked water from the blast furnace hearth.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a water collecting and draining method for a blast furnace hearth comprises (1) arranging a ring-shaped water collecting and draining tank between a furnace shell and a carbon brick of the blast furnace hearth and positioned at the bottom of the lowest layer of cooling wall, arranging water inlet holes on an upper transverse plate attached to the bottom of the lowest layer of cooling wall in the water collecting and draining tank, arranging water inlet holes on an inner side surface vertical plate attached to the peripheral wall surface of the carbon brick in the water collecting and draining tank, and collecting water leaked in the blast furnace through the water inlet holes on the upper transverse plate and the water inlet holes on the inner side surface vertical plate; (2) A drain pipe which penetrates through the furnace shell and is communicated with the inner cavity of the water collecting and draining box is arranged, and water in the water collecting and draining box is drained periodically.
Further, at least two rings of water inlets are arranged on the upper transverse plate, one ring is positioned at the position of the upper transverse plate, which is opposite to the bottom of the cooling wall, and the other ring is positioned at the position of the upper transverse plate, which is opposite to the ramming mass between the cooling wall and the carbon bricks.
The utility model provides a blast furnace hearth water collecting and draining device, includes water collecting and draining tank and drain pipe, and water collecting and draining tank sets up between the stove outer covering of blast furnace hearth and carbon brick and is located the cooling wall bottom department of the lowest floor, is equipped with a plurality of inlet openings on the last diaphragm that pastes with the cooling wall bottom of the lowest floor in the water collecting and draining tank, also is equipped with a plurality of inlet openings on the medial surface riser that pastes with carbon brick periphery wall in the water collecting and draining tank, and the drain pipe passes the stove outer covering and is linked together with water collecting and draining tank inner chamber.
Further, the water inlet hole arranged on the upper transverse plate is provided with at least two rings, at least one ring is positioned at the area of the upper transverse plate opposite to the bottom of the cooling wall, and at least one ring is positioned at the area of the upper transverse plate opposite to the ramming mass between the cooling wall and the carbon bricks.
Further, the water inlet hole arranged on the inner side vertical plate is provided with at least one ring.
Further, the water collecting and draining box further comprises a lower transverse plate, the upper transverse plate in the water collecting and draining box is arranged opposite to the lower transverse plate, one end of the upper transverse plate is fixedly connected to the inner side of the furnace shell, the other ends of the upper transverse plate and the lower transverse plate are fixedly connected to the inner side vertical plate, and the upper end of the inner side vertical plate is higher than the upper transverse plate.
Further, a ball valve is arranged on the drain pipe extending out of the furnace shell.
The invention has the beneficial effects that:
(1) The water collecting and draining device is arranged at a specific position, water leaked in the blast furnace is collected through the water collecting and draining device, and water is drained regularly, so that local accumulation caused by disordered flow of the water in the blast furnace is avoided, and the problem that the water permeates into the center of the blast furnace and erodes carbon bricks after being gasified at high temperature is solved.
(2) The drain pipe is not directly contacted with various ramming materials and grouting materials in the blast furnace, water is collected through the water collecting and draining box and then is drained from the drain pipe, the drain pipe cannot be blocked, and the situation that the drain pipe is blocked and cannot drain water is effectively avoided.
(3) The whole set of device is simple and convenient to install, the water collecting and draining box is convenient to collect water, the water draining is smooth, and the safety and the long service life of the hearth are protected.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a view in the C-direction of FIG. 1 (only 1/4 circle shown);
fig. 3 is an enlarged view of section i of fig. 2.
Reference numerals: furnace shell-1, carbon brick-2, cooling wall-3, water collecting and draining tank-4, upper transverse plate-401, water inlet-402, inner side vertical plate-403, water inlet-404, lower transverse plate-405, drain-5 and ball valve-6.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the invention; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present invention, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 to 3, a water collecting and draining method for a blast furnace hearth includes: (1) An annular water collecting and draining tank 4 is arranged between the furnace shell 1 of the blast furnace hearth and the carbon bricks 2 and positioned at the bottom of the lowest layer of cooling walls 3, a water inlet 402 is arranged on an upper transverse plate 401 which is attached to the bottom of the lowest layer of cooling walls 3 in the water collecting and draining tank 4, a water inlet 404 is also arranged on an inner side vertical plate 403 which is attached to the peripheral wall surface of the carbon bricks 2 in the water collecting and draining tank 4, and water leaked in the blast furnace is collected through the water inlet 402 on the upper transverse plate 401 and the water inlet 404 on the inner side vertical plate 403; (2) A drain pipe 5 which penetrates through the water tank 1 and is communicated with the inner cavity of the water collecting and draining tank 4 is arranged, and water in the water collecting and draining tank 4 is drained periodically.
The method is to install a water collecting and draining device at a specific position of the side wall of the blast furnace hearth, wherein the specific position is positioned at a position which corresponds to the bottom of the lowest cooling wall 3 and the peripheral wall surface of the carbon brick. The water in the blast furnace flows downwards along the inner side of the cooling wall and the ramming mass between the cooling wall and the furnace shell, and enters the water collecting and draining box through the water inlet 402 on the upper transverse plate 401 of the water collecting and draining box and the water inlet 404 on the vertical plate 403 of the inner side surface. Through collecting the water leaked from the blast furnace, and then draining the water periodically, the disordered flow of the water in the blast furnace is avoided, and the local accumulation is generated, so that the water permeates into the center of the blast furnace and erodes the carbon bricks after being gasified at high temperature. Meanwhile, the drain pipe 5 is not directly contacted with various ramming materials and grouting materials in the blast furnace, water is collected through the water collecting and draining box 4 and then is drained from the drain pipe 5, and the situation that the drain pipe is blocked and cannot drain water is effectively avoided.
As a further optimization of the above scheme, two rings of water inlet holes 402 are formed on the upper transverse plate 401, one ring is located at a region a of the upper transverse plate opposite to the bottom of the cooling wall, and the other ring is located at a region B of the upper transverse plate opposite to the ramming mass between the cooling wall 3 and the carbon bricks 2. The arrangement can lead the water flowing downwards along the inner side of the cooling wall and between the cooling wall and the furnace shell into the water collecting and draining box to prevent the water from accumulating; and under the mutual matching of the two water inlets positioned between the cooling wall 3 and the carbon bricks 2 and positioned on the vertical plate 403 on the inner side surface, the problem that water can infiltrate into the center of the blast furnace to erode the carbon bricks is effectively solved.
The utility model provides a blast furnace hearth water collecting and draining device, includes water collecting and draining tank 4 and drain pipe 5, and water collecting and draining tank 4 sets up between furnace shell 1 and the carbon brick 2 of blast furnace hearth and is located the bottom department of the cooling wall 3 of the lowest floor, is equipped with a plurality of inlet openings 402 on the last diaphragm 401 that pastes with the bottom of the cooling wall 3 of the lowest floor in the water collecting and draining tank 4, also is equipped with a plurality of inlet openings 404 on the medial surface riser 403 that pastes with the periphery wall of carbon brick 2 in the water collecting and draining tank 4, and drain pipe 5 passes furnace shell 1 and is linked together with water collecting and draining tank 4 inner chamber.
As a further optimization of the scheme, the water inlet holes 402 arranged on the upper transverse plate 401 are provided with at least two rings, at least one ring is positioned at the area A of the upper transverse plate 401 opposite to the bottom of the cooling wall 3, and at least one ring is positioned at the area B of the upper transverse plate 401 opposite to the ramming mass between the cooling wall 3 and the carbon bricks 2; and the water inlet 404 provided on the inner side riser 403 has at least one ring. In this embodiment, the upper transverse plate 401 has two rings of water inlets 402, one ring is located in the area a, one ring is located in the area B, and the water inlets 404 on the inner side vertical plate 403 have two rings in a high-low arrangement.
The water collecting and draining tank 4 is an annular tank body, and is formed by welding an upper transverse plate 401, a lower transverse plate 405 and an inner side surface vertical plate 403 on the furnace shell 1, wherein the upper transverse plate 401 and the lower transverse plate 405 are arranged up and down oppositely, one end of the upper transverse plate 401 is fixedly connected to the inner side of the furnace shell 1, the other ends of the upper transverse plate 401 and the lower transverse plate 405 are fixedly connected to the inner side surface vertical plate 403, and the upper end of the inner side surface vertical plate 403 is higher than the upper transverse plate 401. The upper end of the inner side vertical plate 403 is higher than the upper transverse plate 401, so that the water flowing downwards along the ramming mass can be prevented from continuously penetrating downwards, and then flows into the water collecting and draining tank.
As a further optimization of the above solution, the drain pipe 5 extending outside the furnace shell 1 is provided with a ball valve 6.
The water collecting and draining box 4 is formed by welding steel plates, wherein an upper transverse plate 401 is tightly attached to the bottom of the cooling wall 3 at the lowest layer of the blast furnace and is welded on the inner side of the furnace shell 1 to form a circular box body, water in the blast furnace flows downwards along the inner side of the cooling wall 3 and ramming materials between the cooling wall 3 and the furnace shell 1, and water inlets 402 and 404 on the upper transverse plate 401 and an inner side surface vertical plate 403 enter the water collecting and draining box 4. The drain pipe 5 passes through the blast furnace shell 1 and extends into the lower part of the water collecting and draining box 4, a ball valve 6 is arranged on the drain pipe 5, and the water collected in the water collecting and draining box 4 can be drained by opening the ball valve 6.
The whole set of device is simple and convenient to install, and the water collecting and draining box is convenient for collecting water; the drain pipe is not directly contacted with various ramming materials and grouting materials in the blast furnace, the drain pipe can not be blocked, water deposited on the hearth can be well collected and discharged, the carbon brick is prevented from being eroded after entering the carbon brick to be gasified at high temperature, and the safety and the long service life of the hearth are protected.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (7)
1. A water collecting and draining method for a blast furnace hearth is characterized in that: an annular water collecting and draining box is arranged between a furnace shell of a blast furnace hearth and a carbon brick and positioned at the bottom of the lowest layer of cooling wall, a water inlet hole is arranged on an upper transverse plate which is attached to the bottom of the lowest layer of cooling wall in the water collecting and draining box, a water inlet hole is also arranged on an inner side surface vertical plate which is attached to the peripheral wall surface of the carbon brick in the water collecting and draining box, and water leaked in the blast furnace is collected through the water inlet hole on the upper transverse plate and the water inlet hole on the inner side surface vertical plate; (2) A drain pipe which penetrates through the furnace shell and is communicated with the inner cavity of the water collecting and draining box is arranged, and water in the water collecting and draining box is drained periodically.
2. The blast furnace hearth water collection and drainage method according to claim 1, wherein: at least two rings of water inlets are arranged on the upper transverse plate, one ring is positioned at the area of the upper transverse plate opposite to the bottom of the cooling wall, and the other ring is positioned at the area of the upper transverse plate opposite to the ramming mass between the cooling wall and the carbon bricks.
3. A water collecting and draining device for a blast furnace hearth, which is characterized in that: the water collecting and draining box is arranged between a furnace shell of a blast furnace hearth and a carbon brick and is positioned at the bottom of the cooling wall of the lowest layer, a plurality of water inlets are formed in an upper transverse plate attached to the bottom of the cooling wall of the lowest layer in the water collecting and draining box, a plurality of water inlets are also formed in an inner side surface vertical plate attached to the peripheral wall surface of the carbon brick in the water collecting and draining box, and the drain pipe penetrates through the furnace shell and is communicated with the inner cavity of the water collecting and draining box.
4. A blast furnace hearth water collection and drainage device according to claim 3, wherein: the water inlet hole arranged on the upper transverse plate is provided with at least two rings, at least one ring is positioned on the upper transverse plate at the position opposite to the bottom of the cooling wall, and at least one ring is positioned on the upper transverse plate at the position opposite to the ramming mass between the cooling wall and the carbon bricks.
5. A blast furnace hearth water collection and drainage device according to claim 3, wherein: the water inlet hole arranged on the inner side vertical plate is provided with at least one ring.
6. A blast furnace hearth water collection and drainage device according to claim 3, wherein: the water collecting and draining box further comprises a lower transverse plate, the upper transverse plate and the lower transverse plate in the water collecting and draining box are oppositely arranged, one end of the upper transverse plate and one end of the lower transverse plate are fixedly connected to the inner side surface vertical plate, and the upper end of the inner side surface vertical plate is higher than the upper transverse plate.
7. A blast furnace hearth water collection and drainage device according to claim 3, wherein: a ball valve is arranged on the drain pipe extending out of the furnace shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910198938.1A CN109735672B (en) | 2019-03-15 | 2019-03-15 | Water collecting and draining method and device for blast furnace hearth |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910198938.1A CN109735672B (en) | 2019-03-15 | 2019-03-15 | Water collecting and draining method and device for blast furnace hearth |
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| Publication Number | Publication Date |
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| CN109735672A CN109735672A (en) | 2019-05-10 |
| CN109735672B true CN109735672B (en) | 2024-02-23 |
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| CN201910198938.1A Active CN109735672B (en) | 2019-03-15 | 2019-03-15 | Water collecting and draining method and device for blast furnace hearth |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113337656B (en) * | 2021-06-29 | 2022-04-12 | 广东韶钢松山股份有限公司 | Drainage method for hearth during blow-in period after cast repair in blast furnace |
| CN115449575A (en) * | 2022-08-26 | 2022-12-09 | 北京首钢股份有限公司 | Water collecting and draining method after integral casting of blast furnace hearth |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1494406A (en) * | 1966-09-19 | 1967-09-08 | Didier Werke Ag | Device for protecting the refractory lining of shaft furnaces, in particular blast furnaces, against water leaks from cooling boxes, nozzles and the like |
| CN206843519U (en) * | 2017-06-30 | 2018-01-05 | 马鞍山市润通冶金材料有限公司 | A kind of cooling water pipe detecting system of cooling wall |
| CN107805678A (en) * | 2017-11-23 | 2018-03-16 | 中冶赛迪工程技术股份有限公司 | A kind of drainage system for discharging State of Blast Furnace internal water accumulation |
| CN207581842U (en) * | 2017-12-04 | 2018-07-06 | 中冶赛迪工程技术股份有限公司 | A kind of bottom hearth of blast furnace structure |
| CN209652351U (en) * | 2019-03-15 | 2019-11-19 | 中冶赛迪工程技术股份有限公司 | A kind of blast furnace crucibe catchments drainage arrangement |
-
2019
- 2019-03-15 CN CN201910198938.1A patent/CN109735672B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1494406A (en) * | 1966-09-19 | 1967-09-08 | Didier Werke Ag | Device for protecting the refractory lining of shaft furnaces, in particular blast furnaces, against water leaks from cooling boxes, nozzles and the like |
| CN206843519U (en) * | 2017-06-30 | 2018-01-05 | 马鞍山市润通冶金材料有限公司 | A kind of cooling water pipe detecting system of cooling wall |
| CN107805678A (en) * | 2017-11-23 | 2018-03-16 | 中冶赛迪工程技术股份有限公司 | A kind of drainage system for discharging State of Blast Furnace internal water accumulation |
| CN207581842U (en) * | 2017-12-04 | 2018-07-06 | 中冶赛迪工程技术股份有限公司 | A kind of bottom hearth of blast furnace structure |
| CN209652351U (en) * | 2019-03-15 | 2019-11-19 | 中冶赛迪工程技术股份有限公司 | A kind of blast furnace crucibe catchments drainage arrangement |
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