CN212451475U - Blast furnace tapping device - Google Patents
Blast furnace tapping device Download PDFInfo
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- CN212451475U CN212451475U CN202020238659.1U CN202020238659U CN212451475U CN 212451475 U CN212451475 U CN 212451475U CN 202020238659 U CN202020238659 U CN 202020238659U CN 212451475 U CN212451475 U CN 212451475U
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- blast furnace
- tapping device
- refractory mortar
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Abstract
The utility model relates to the technical field of chemical equipment, concretely relates to blast furnace tapping device. The blast furnace tapping device comprises two groups of tapping holes symmetrically arranged on a blast furnace body, a refractory mortar sleeve is arranged in front of the tapping holes, and a prefabricated tapping channel is arranged below the refractory mortar sleeve. The utility model provides a blast furnace tapping device with reliable performance, which is not only corrosion resistant and has long service life, but also has convenient installation and high economic benefit. The utility model discloses a tapping device is used through two years, and the blast furnace condition obviously improves, and the accident reduces, improves the productivity effect, and daily output improves 10 tons, and nearly 1000 tons of annual fecundation bring great economic benefits for the company.
Description
Technical Field
The patent of the utility model relates to a chemical industry equipment technical field, concretely relates to blast furnace casting device.
Background
With the increasing size of blast furnaces, the frequent tapping times lead to the overweight burden of the tapping hole, and the daily tapping amount of a single tapping hole sometimes reaches about 3000 tons, so the working conditions of the tapping hole are extremely harsh, and only one tapping hole is obtained in the existing blast furnace, which easily causes accidents and reduces the production benefit. Meanwhile, the tapping hole of the existing blast furnace adopts on-site pouring, and the existing blast furnace is not subjected to high-temperature sintering treatment, so that the bonding strength is low, and the anti-scouring performance is poor. The dual requirements of slag corrosion resistance and molten iron corrosion resistance are difficult to meet simultaneously, so that the service life of the tap hole is very short under the combined action of oxidation and corrosion at high temperature, and frequent repair is required. In addition, with the great increase of the tapping speed and the tapping frequency, the erosion speed of the existing tapping channel is accelerated, the erosion damage degree is increased, the lining building and repairing cost is greatly increased, and the requirements of high-efficiency, stable and low-consumption operation of the blast furnace cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model provides a blast furnace tapping device with reliable performance, which is not only corrosion resistant and has long service life, but also has convenient installation and high economic benefit.
The technical scheme of the utility model is realized like this: the utility model provides a blast furnace casting device, includes that two sets of symmetries set up the taphole on the blast furnace body, taphole the place ahead is provided with the chamotte cover, chamotte cover below is provided with prefabricated iron notch.
The tapping hole is a prefabricated tapping hole which comprises an upper prefabricated part and a lower prefabricated part which are bonded into a whole by different refractory materials, grooves which are oppositely combined are respectively arranged on the lower end surface of the upper prefabricated part and the upper end surface of the lower prefabricated part, and the grooves on the upper end surface and the lower end surface form a flow channel hole for blast furnace molten iron to flow.
The upper prefabricated member and the lower prefabricated member are bonded into a whole through silicon carbide refractory slurry, and the prefabricated iron outlet is detachably mounted on the furnace body.
The prefabricated tapping channel is a concrete firmware, an arc tapping channel is arranged in the prefabricated tapping channel, a heat-resistant layer is arranged on the surface of the tapping channel, and a water flowing pipe is inserted below the tapping channel.
Preferably, the refractory mortar sleeve is sleeved at the front end of the taphole.
The furnace body is also provided with a plurality of hot air ports and a slag outlet.
The utility model provides an existing defect among the background art, have following beneficial effect:
the utility model discloses structural design scientific and reasonable, not only resistant erosion, long service life, simple to operate moreover, economic benefits is high. The utility model increases a taphole on the original basis, adopts two tapholes to tap iron in turn, greatly reduces the working conditions of the blast furnace and prolongs the service life of the taphole. The iron notch and the iron runner are arranged as prefabricated parts, so that the iron notch and the iron runner can be disassembled and assembled, and are convenient to replace. The prefabricated iron outlet is formed by bonding different refractory materials into an integral upper prefabricated member and an integral lower prefabricated member, and the two materials are sintered at high temperature, so that the prefabricated iron outlet has high mechanical property, strong empty scourability and long service life. The surface of the prefabricated iron tapping channel is provided with the heat-resistant layer, so that the heat-resistant effect is good, and the service life is prolonged. The refractory mortar sleeve is mainly used for ensuring that molten iron can flow into a prefabricated tapping channel in the tapping operation process, and further is favorable for ensuring the normal operation of the whole tapping operation. The utility model discloses a tapping device is used through two years, and the blast furnace condition obviously improves, and the accident reduces, improves the productivity effect, and daily output improves 10 tons, and nearly 1000 tons of annual fecundation bring great economic benefits.
Drawings
Fig. 1 is a schematic view of the installation of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the taphole of FIG. 2;
FIG. 4 is a left side schematic view of FIG. 2;
FIG. 5 is a schematic view of the structure of the prefabricated runner of FIG. 2;
in the figure: 1-furnace body, 2-taphole, 3-prefabricated tapping channel, 4-refractory clay sleeve, 5-hot air port, 21-upper prefabricated part, 22-lower prefabricated part, 23-runner hole, 31-tapping channel, 32-heat-resistant layer and 33-water pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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. 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.
Referring to fig. 1 to 5, the blast furnace tapping device comprises two groups of tapping holes 2 symmetrically arranged on a blast furnace body 1, a refractory mortar sleeve 4 is arranged in front of the tapping holes 2, and a prefabricated tapping channel 3 is arranged below the refractory mortar sleeve 4. The tap hole 2 is a prefabricated tap hole which comprises an upper prefabricated part 21 and a lower prefabricated part 22 which are bonded into a whole by different refractory materials, the lower end surface of the upper prefabricated part 21 and the upper end surface of the lower prefabricated part 22 are respectively provided with grooves which are mutually matched, and the grooves on the upper end surface and the lower end surface form a flow channel hole 23 for blast furnace molten iron to flow. The upper prefabricated member 21 and the lower prefabricated member 22 are bonded into a whole through silicon carbide refractory mortar, and the prefabricated iron outlet is detachably mounted on the furnace body 1. The prefabricated tapping channel 3 is a concrete fixed part, an arc-shaped tapping channel 31 is arranged in the prefabricated tapping channel, a heat-resistant layer 32 is arranged on the surface of the tapping channel 31, and a water flowing pipe 33 is inserted below the tapping channel. The heat-resistant layer 32 is a high-temperature-resistant inorganic coating. The refractory mortar sleeve 4 is sleeved at the front end of the taphole 2. The furnace body 1 is also provided with a plurality of hot air ports 5 and a slag outlet.
The utility model discloses a working process is: the utility model discloses on original basis, having increased a taphole, consequently adopted two tapholes 2 tapping in turn, greatly reduced blast furnace operating condition, prolonged taphole 2's life. Through setting up taphole 2 and iron runner into the prefab, can dismantle the installation, the change of being convenient for. The prefabricated iron outlet is formed by bonding different refractory materials into an integral upper prefabricated member 21 and a lower prefabricated member 22, and the two materials are sintered at high temperature, so that the prefabricated iron outlet has high mechanical property, strong air scouring and long service life. The surface of the prefabricated iron tapping channel 3 is provided with the heat-resistant layer 32, so that the heat-resistant effect is good, and the service life is prolonged. Through the water flowing pipe 33 arranged below the iron notch 31, when the iron notch prefabricated parts are used, molten iron close to the iron notch 31 is solidified to form a non-flowing iron layer on the surface of the iron notch 31 due to the fact that the temperature of the molten iron is lower than a molten iron solidification line, and the molten iron is effectively prevented from flowing into gaps between every two prefabricated parts. The front end of the tap hole 2 is sleeved with a refractory mortar sleeve 4. The refractory mortar sleeve 4 is mainly used for ensuring that molten iron can flow into the prefabricated tapping channel 3 in the tapping operation process, and further is favorable for ensuring the normal operation of the whole tapping operation. The utility model discloses a tapping device is used through two years, and the blast furnace condition obviously improves, and the accident reduces, improves the productivity effect, and daily output improves 10 tons, and nearly 1000 tons of annual fecundation bring great economic benefits.
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 (5)
1. A blast furnace tapping device is characterized in that: the device comprises two groups of tapholes (2) symmetrically arranged on a blast furnace body (1), wherein a refractory mortar sleeve (4) is arranged in front of the taphole (2), and a prefabricated tapping channel (3) is arranged below the refractory mortar sleeve (4); the tapping hole (2) is a prefabricated tapping hole, the prefabricated tapping hole comprises an upper prefabricated part (21) and a lower prefabricated part (22) which are bonded into a whole by different refractory materials, grooves which are mutually combined are respectively formed in the lower end surface of the upper prefabricated part (21) and the upper end surface of the lower prefabricated part (22), and the grooves in the upper end surface and the lower end surface form a runner hole (23) for blast furnace molten iron flowing.
2. The blast furnace tapping device according to claim 1, wherein: the upper prefabricated member (21) and the lower prefabricated member (22) are bonded into a whole through silicon carbide refractory mortar, and the prefabricated tapping hole is detachably mounted on the furnace body (1).
3. The blast furnace tapping device according to claim 2, wherein: the prefabricated tapping channel (3) is a concrete fixed part, an arc-shaped tapping channel (31) is arranged in the prefabricated tapping channel, a heat-resistant layer (32) is arranged on the surface of the tapping channel (31), and a water flowing pipe (33) is inserted below the tapping channel in a penetrating manner.
4. The blast furnace tapping device according to claim 3, wherein: the refractory mortar sleeve (4) is sleeved at the front end of the taphole (2).
5. The blast furnace tapping device according to claim 4, wherein: the furnace body (1) is also provided with a plurality of hot air ports (5) and a slag outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020238659.1U CN212451475U (en) | 2020-03-02 | 2020-03-02 | Blast furnace tapping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020238659.1U CN212451475U (en) | 2020-03-02 | 2020-03-02 | Blast furnace tapping device |
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| Publication Number | Publication Date |
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| CN212451475U true CN212451475U (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020238659.1U Active CN212451475U (en) | 2020-03-02 | 2020-03-02 | Blast furnace tapping device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115125342A (en) * | 2021-03-29 | 2022-09-30 | 宝山钢铁股份有限公司 | Detachable mud sleeve prefabricated part for blast furnace taphole and mounting method thereof |
-
2020
- 2020-03-02 CN CN202020238659.1U patent/CN212451475U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115125342A (en) * | 2021-03-29 | 2022-09-30 | 宝山钢铁股份有限公司 | Detachable mud sleeve prefabricated part for blast furnace taphole and mounting method thereof |
| CN115125342B (en) * | 2021-03-29 | 2023-08-11 | 宝山钢铁股份有限公司 | Prefabricated member with detachable mud sleeve for blast furnace tap hole and installation method of prefabricated member |
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