CN209978591U - Wind guide wall water beam of shaft furnace - Google Patents
Wind guide wall water beam of shaft furnace Download PDFInfo
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- CN209978591U CN209978591U CN201920260648.0U CN201920260648U CN209978591U CN 209978591 U CN209978591 U CN 209978591U CN 201920260648 U CN201920260648 U CN 201920260648U CN 209978591 U CN209978591 U CN 209978591U
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Abstract
An air guide wall water beam of a shaft furnace relates to the technical field of shaft furnaces. It contains first box, second box, seamless steel pipe, water beam cushion, layer board, wear-resisting alloy, first box with from the top has set gradually a plurality of seamless steel pipe between the second box, seamless steel pipe is closed loop pipeline, and the both ends of seamless steel pipe set up the outside at first box and second box respectively, be provided with the water beam cushion between first box and the second box, water beam cushion symmetry sets up on the seamless steel pipe of top layer, is provided with the layer board between two water beam cushions, the combination is put things in good order between water beam cushion and the seamless steel pipe. The utility model discloses beneficial effect does: the seamless steel pipe is simple in structure and reasonable in design, and cooling water circulation is smoother by sequentially arranging the seamless steel pipes from top to bottom in a single-inlet and single-outlet mode; the wind erosion resistance of the water beam is improved and the service life of the water beam is prolonged by the heat-resistant cast steel water beam cushion block and the surfacing wear-resistant alloy.
Description
Technical Field
The utility model relates to a shaft furnace technical field, concretely relates to wind-guiding wall water beam of shaft furnace.
Background
The invention relates to a shaft furnace air guide wall, which is a unique invention of a shaft furnace worker in China, and comprises the following steps: the hot air in the cooling section is directly led into the oven top drying bed through the air guide wall and is used for drying the green pellets entering the oven. Has the obvious functions of reducing the pressure in the furnace, promoting the reasonable distribution of air flow, saving electricity and energy and improving quality and yield.
The air guide wall is of a hollow structure and is vertically arranged at the central line position in the shaft furnace, and the function principle of the air guide wall is that part of high-temperature hot air at the cooling section at the lower part of the shaft furnace is directly introduced into the drying bed at the top of the furnace through the cavity inside the air guide wall and is used for drying raw pellets entering the furnace. The wind guide wall is built by special-shaped refractory bricks, the total weight is about 35-60 tons (depending on the size of the shaft furnace), the wind guide wall water beam used as a wind guide wall bearing body is generally formed by overlapping and welding a plurality of high-quality thick-wall seamless steel pipes in two rows, the steel pipes are internally cooled by water, steel supporting plates are welded on the upper parts of the water beams, and the wind guide wall is built on the supporting plates.
The water beam of the air guide wall is in a severe working environment in the furnace, is influenced by multiple erosion effects such as high-temperature dusty airflow, high-temperature oxidation and the like and thermal deformation, and has a service life of about 10-12 months generally. Through multiple improvements of our company, the original defects of the water beam partition plate, the steel plate on the inner end face of the box body and the like are improved and designed again, a good effect is achieved, the problem of water leakage of the steel pipe is basically solved, the service life is prolonged to more than 16 months, and the old water beam which is off-line can be reused after being simply renovated.
The air guide wall water beam of the existing shaft furnace adopts a double-inlet and double-outlet design in the aspect of water circulation, and has the defects that water enters a water beam pipeline through a pipe and returns water through an adjacent pipe, so that the retention time of cooling water in the furnace is too long in the process, the temperature is gradually increased until gasification is realized, and if gas cannot be discharged in time, the water beam is easy to damage due to too high temperature caused by unsmooth water path; the end face of the water beam of the air guide wall is welded by a common steel plate, so that the end face of the water beam is easily damaged in the working environment of the water beam, the water beam is forced to stop the furnace due to water leakage, and great economic loss is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's defect and not enough, provide a wind-guiding wall water beam of shaft furnace, it can solve the unsmooth problem of wind-guiding wall water beam cooling water circulation of present shaft furnace and water beam terminal surface and inside wind erode seriously, influence the defect of normal use.
In order to achieve the above purpose, the utility model adopts the following technical scheme: it contains first box, second box, seamless steel pipe, water beam cushion, layer board, abrasion alloy, first box with from the top has set gradually a plurality of seamless steel pipe between the second box, seamless steel pipe is closed loop pipeline, and the both ends of seamless steel pipe set up the outside at first box and second box respectively, be provided with the water beam cushion between first box and the second box, water beam cushion symmetry sets up on the seamless steel pipe of top layer, is provided with the layer board between two water beam cushions, be connected through the abrasion alloy build-up welding between water beam cushion and the seamless steel pipe.
Furthermore, six seamless steel pipes are sequentially arranged between the first box body and the second box body from top to bottom, and the six seamless steel pipes are distributed in a step shape.
Furthermore, the plurality of seamless steel pipes are connected through wear-resistant alloy surfacing.
Furthermore, the water beam cushion block is a heat-resistant cast steel cushion block.
The utility model discloses a theory of operation: through a plurality of seamless steel pipes which are arranged in sequence, the water beam water passing mode is a single-inlet single-outlet mode, and the water inlet pipe and the water outlet pipe of the water beam are matched in a reasonable pipe diameter mode, so that cooling water circulation is smoother; the heat-resistant cast steel water beam cushion block arranged on the seamless steel pipe can prevent the end face of the water beam from being seriously weathered, and the heat-resistant temperature can reach 1100 ℃; wear-resistant alloy is welded between the heat-resistant cast steel water beam cushion block and the seamless steel pipes and between two adjacent seamless steel pipes, and is positioned at the position with serious wind erosion inside the water beam wall, so that the service life of the water beam is prolonged.
After the technical scheme is adopted, the utility model discloses beneficial effect does: the seamless steel pipe is simple in structure and reasonable in design, and cooling water circulation is smoother by sequentially arranging the seamless steel pipes from top to bottom in a single-inlet and single-outlet mode; the wind erosion resistance of the water beam is improved and the service life of the water beam is prolonged by the heat-resistant cast steel water beam cushion block and the surfacing wear-resistant alloy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a front view of the present invention;
FIG. 2 is a top view corresponding to FIG. 1;
fig. 3 is a sectional view taken along a-a in fig. 1.
Description of reference numerals: the device comprises a first box body 1, a second box body 2, a seamless steel pipe 3, a water beam cushion block 4, a supporting plate 5 and wear-resistant alloy 6.
Detailed Description
Referring to fig. 1 to fig. 3, the technical solution adopted by the present embodiment is: it contains first box 1, second box 2, seamless steel pipe 3, water beam cushion 4, layer board 5, abrasion alloy 6, first box 1 with from the top has set gradually a plurality of seamless steel pipe 3 between the second box 2, seamless steel pipe 3 is the closed loop pipeline, and the both ends of seamless steel pipe 3 set up respectively in the outside of first box 1 and second box 2, be provided with water beam cushion 4 between first box 1 and the second box 2, it is concrete, water beam cushion 4 is heat-resisting cast steel cushion, water beam cushion 4 symmetry sets up on the seamless steel pipe 3 of top layer, is provided with layer board 5 between two water beam cushions 4, it is connected through the 6 build-up welding of abrasion alloy between water beam cushion 4 and the seamless steel pipe 3.
Six seamless steel pipes 3 are sequentially arranged between the first box body 1 and the second box body 2 from top to bottom, the six seamless steel pipes 3 are distributed in a step shape, the six seamless steel pipes 3 enable the water beam to pass through water in a single-inlet and single-outlet mode, and the six seamless steel pipes 3 are reasonably matched in pipe diameter.
All connect through 6 build-up welding of wear-resisting alloy between a plurality of seamless steel pipe 3, wear-resisting alloy 6 has adopted intraductal logical steam treatment at the in-process of build-up welding, prevents to explode among the water beam welding process and splits.
When the water cooling device is specifically implemented, the water beam water passing mode is a single-inlet single-outlet mode through the plurality of seamless steel pipes 3 which are arranged in sequence, and the water inlet pipe and the water outlet pipe of the water beam are reasonably matched in pipe diameter, so that cooling water can circulate more smoothly; the heat-resistant cast steel water beam cushion block 4 arranged on the seamless steel pipe 3 can prevent the end face of the water beam from being severely weathered, and the heat-resistant temperature can reach 1100 ℃; the abrasion-resistant alloy 6 is welded between the heat-resistant cast steel water beam cushion block 4 and the seamless steel pipes 3 and between the two adjacent seamless steel pipes 3, and is positioned at the part with serious wind erosion inside the water beam wall, so that the service life of the water beam is prolonged.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (4)
1. An air guide wall water beam of a shaft furnace, which is characterized in that: it contains first box, second box, seamless steel pipe, water beam cushion, layer board, abrasion alloy, first box with from the top has set gradually a plurality of seamless steel pipe between the second box, seamless steel pipe is closed loop pipeline, and the both ends of seamless steel pipe set up the outside at first box and second box respectively, be provided with the water beam cushion between first box and the second box, water beam cushion symmetry sets up on the seamless steel pipe of top layer, is provided with the layer board between two water beam cushions, be connected through the abrasion alloy build-up welding between water beam cushion and the seamless steel pipe.
2. An air guide wall water beam for a shaft furnace according to claim 1, wherein: six seamless steel tubes are sequentially arranged between the first box body and the second box body from top to bottom and are distributed in a step shape.
3. An air guide wall water beam for a shaft furnace according to claim 1, wherein: and the plurality of seamless steel pipes are connected through wear-resistant alloy surfacing.
4. An air guide wall water beam for a shaft furnace according to claim 1, wherein: the water beam cushion block is a heat-resistant cast steel cushion block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920260648.0U CN209978591U (en) | 2019-03-01 | 2019-03-01 | Wind guide wall water beam of shaft furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920260648.0U CN209978591U (en) | 2019-03-01 | 2019-03-01 | Wind guide wall water beam of shaft furnace |
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| CN209978591U true CN209978591U (en) | 2020-01-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111829336A (en) * | 2020-07-29 | 2020-10-27 | 马鞍山钢铁股份有限公司 | Water beam structure of air guide wall of shaft furnace and application method thereof |
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2019
- 2019-03-01 CN CN201920260648.0U patent/CN209978591U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111829336A (en) * | 2020-07-29 | 2020-10-27 | 马鞍山钢铁股份有限公司 | Water beam structure of air guide wall of shaft furnace and application method thereof |
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