CN218435823U - Tapping device for treating metallurgical solid waste by oxygen-enriched shaft furnace - Google Patents
Tapping device for treating metallurgical solid waste by oxygen-enriched shaft furnace Download PDFInfo
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- CN218435823U CN218435823U CN202222624798.XU CN202222624798U CN218435823U CN 218435823 U CN218435823 U CN 218435823U CN 202222624798 U CN202222624798 U CN 202222624798U CN 218435823 U CN218435823 U CN 218435823U
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- shaft furnace
- taphole
- refractory material
- tapping
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
A tapping device for treating metallurgical solid waste by an oxygen-enriched shaft furnace belongs to the field of metallurgical solid waste resource utilization. The utility model solves the problem of short service life of the tap hole in the process of treating metallurgical solid waste by the oxygen-enriched shaft furnace. The utility model comprises a shaft furnace taphole, a mouth gag, a plugging device, a refractory material bin and an unshaped refractory material; the shaft furnace taphole is plugged with unshaped refractory materials, the mouth gag and the plugging device are arranged at two sides of the taphole, and the plugging device is connected with the refractory material bin. The device can effectively prolong the service life of the taphole, improve the continuity, stability and safety of production, reduce the equipment failure rate and reduce the operation cost.
Description
Technical Field
The utility model belongs to metallurgical solid useless utilization field, in particular to a tapping device that is used for oxygen boosting shaft furnace to handle metallurgical solid useless.
Background
In each process of steel production, a large amount of dust and sludge are generated, and the main varieties of the dust and the sludge are as follows: the iron-containing dust collected in post environment dust removal of each process, such as blast furnace gas dry method dust removal ash, gravity dust removal ash, converter sludge, electric furnace dust removal ash, secondary dust removal ash and the like, generally has a TFe content of 30-70%, and simultaneously contains a certain content of carbon and harmful elements. In the traditional blast furnace converter steel production flow, the total amount of iron-containing dust and mud accounts for 8-12% of the steel yield of enterprises, and the amount of the iron-containing dust and mud is quite remarkable for a large-scale steel enterprise. The method has great economic benefit and social benefit for resource utilization of the solid wastes in the steel industry, realizes sustainable and healthy development of the steel industry, effectively improves the resource utilization rate, and reduces pollution discharge.
The oxygen-enriched shaft furnace is used for treating iron-containing dust and mud and performing solid waste recycling. In the process of treating metallurgical solid waste in an oxygen-enriched shaft furnace, the prior tapping method is siphon type continuous tapping, slag iron flows out simultaneously, and a tap hole channel is continuously soaked and eroded by the slag iron. The service life of the tap hole is only about 3-5 days generally, the service life of the furnace and the continuity and stability of the production of the shaft furnace are seriously influenced, the frequent stopping and starting of the furnace increase the failure rate of equipment, the operation cost is high, and the safety and the stability are poor. Because the service life of the tapping hole is the restrictive link of the process development of the oxygen-enriched shaft furnace, the development of a tapping method with long service life and simple process is urgently needed.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that taphole life is low among the oxygen boosting shaft furnace treatment metallurgy solid waste technology, the utility model provides a tapping method for oxygen boosting shaft furnace treatment metallurgy solid waste, this method can effectively prolong the life of taphole, improves continuity, stability and the security of production, reduces equipment failure rate, reduces the operation cost.
A tapping device for treating metallurgical solid waste by an oxygen-enriched shaft furnace comprises a shaft furnace tapping hole, a mouth gag, a stopper, a refractory material bin and an unshaped refractory material; the shaft furnace taphole is plugged with unshaped refractory materials, the mouth gag and the plugging device are arranged at two sides of the taphole, and the plugging device is connected with the refractory material bin.
The number of the shaft furnace tapholes is 1-4.
The pore size of the shaft furnace taphole pore canal is 30-70 mm.
The mouth gag opens the refractory material of the tap hole through a drill.
Optionally, the refractory material bin is used for storing refractory materials.
The utility model provides a one or more technical scheme has following technological effect or advantage at least:
1. the utility model relates to a tapping device for treating metallurgical solid waste by an oxygen-enriched shaft furnace, which realizes discontinuous tapping by opening and plugging a tapping hole channel, provides the high-temperature sintering condition of a refractory material of a tapping hole from the aspect of time, promotes the improvement of bonding strength and improves the anti-scouring capability; the continuous soaking of the iron slag is isolated from the space, the corrosion of the iron slag is slowed down, and the service life of the taphole is effectively prolonged.
2. The utility model relates to a tapping device that is used for oxygen boosting shaft furnace to handle metallurgical solid useless, the mouth gag carries out the opening to the taphole refractory material, forms the taphole pore, and the refractory material storehouse is used for depositing refractory material, and refractory material enters into the taphole pore from the plugging device and carries out the shutoff, can carry out the tapping operation at any time as required, has overcome current oxygen boosting shaft furnace and has handled metallurgical solid useless tapping device and poor, the complicated and big defect of intensity of labour of process stability.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a process flow diagram of the tapping method of the present invention;
fig. 2 is a schematic structural view of the tapping device of the present invention.
In the figure: 1-mouth gag, 2-plugging device, 3-refractory material bin and 4-tapping hole.
Detailed Description
The embodiment of the utility model provides a technical scheme is for solving above-mentioned technical problem, and the general thinking is as follows:
a tapping device for treating metallurgical solid waste by an oxygen-enriched shaft furnace comprises a shaft furnace tapping hole, a mouth gag, a stopper, a refractory material bin and an unshaped refractory material; the shaft furnace taphole is plugged with unshaped refractory materials, the mouth gag and the plugging device are arranged at two sides of the taphole, and the plugging device is connected with the refractory material bin.
The number of the iron outlets of the shaft furnace is 1-4.
The pore size of the shaft furnace taphole pore canal is 30-70 mm.
According to a typical embodiment of the present invention, there is provided a tapping method for oxygen-rich shaft furnace treatment of metallurgical solid waste, as shown in fig. 1, the method comprising:
s1, opening a refractory material of a taphole to form a taphole hole channel.
In the utility model, the intermittent tapping is realized by opening and plugging the tapping hole channel, thereby providing the high-temperature sintering condition of the refractory material of the tapping hole in terms of time, promoting the improvement of the bonding strength and improving the anti-scouring capability; the continuous soaking of the iron slag is isolated from the space, the erosion of the iron slag is slowed down, and the service life of the iron tap hole is effectively prolonged.
As an optional implementation mode, the number of the iron outlets is 1-4.
The embodiment of the utility model provides an in, taphole quantity is 1 ~ 4, and quantity is more, improves tapping operation flexibility. The smelting pressure is shared mutually for standby use, and the whole service life is prolonged.
As an alternative embodiment, the pore size of the taphole pore canal is 30-70 mm.
In the embodiment of the utility model, the aperture size of the tap hole channel is 30-70 mm, the aperture is too small, the tapping speed is too small, and the production efficiency is influenced; the aperture is too large, the tapping speed is too large, large flow is easily formed, gas in the furnace is mixed, splashing is formed, and accidents are caused.
And S2, discharging the iron slag from the furnace to the outside of the furnace through an iron outlet pore channel.
As an alternative embodiment, the slag iron is discharged from the furnace to the outside of the furnace by one or more of the gravity of the slag iron itself and the pressure of the blast air.
In the embodiment of the utility model, the slag iron is discharged from the furnace to the outside of the furnace through the combined action of two reasons of the gravity of the slag iron and the air supply pressure.
And S3, blocking the hole channel of the tapping hole by using a refractory material.
As an alternative embodiment, the refractory material for plugging the taphole duct is an amorphous refractory material.
The embodiment of the utility model provides an in, shutoff is refractory material for iron mouthful pore and is unshaped refractory material, and unshaped refractory material can carry out deformation according to actual conditions, can guarantee that the shutoff is full closely knit.
According to another typical embodiment of the utility model, a tapping device that is used for oxygen boosting shaft furnace to handle metallurgical solid useless is provided, tapping device includes mouth gag, plugging device, refractory material storehouse and taphole, the mouth gag acts on the taphole, the plugging device acts on the taphole, refractory material storehouse discharge gate with the plugging device feed inlet links to each other.
The utility model discloses in, the mouth gag carries out the opening to taphole refractory material, forms the taphole pore, and the refractory material storehouse is used for depositing refractory material, and refractory material enters into the taphole pore from the plugging device and carries out the shutoff, can carry out the tapping operation at any time as required, has overcome current oxygen boosting shaft furnace and has handled metallurgical solid useless tapping device and the defect that process stability is poor, the technology is complicated and intensity of labour is big.
As an alternative embodiment, the mouth gag opens the taphole refractory by means of a drill.
As an alternative embodiment, the refractory silo is used to store refractory material.
The tapping method and the tapping device for treating metallurgical solid waste in an oxygen-rich shaft furnace according to the present invention will be described in detail with reference to the following examples and comparative examples.
Example 1
As shown in fig. 2, the tapping device for treating metallurgical solid waste in an oxygen-enriched shaft furnace of the present embodiment includes a mouth gag 1, a stopper 2, a refractory material bin 3 and a tapping hole 4, wherein the mouth gag 1 acts on the tapping hole 4, the stopper 2 acts on the tapping hole 4, and a discharge hole of the refractory material bin 3 is connected with a feed inlet of the stopper 2.
Optionally, the mouth gag 1 opens the taphole 4 refractory material by means of a drill.
Optionally, the refractory silo 3 is used for storing refractory.
Example 2
Based on the tapping apparatus of example 1, this example provides a tapping method for treating metallurgical solid waste in an oxygen-rich shaft furnace:
opening the refractory material of the taphole 4 through the mouth gag 1 to form a taphole hole channel, wherein the size of the taphole hole channel is 50mm;
discharging the iron slag from the furnace to the outside of the furnace through a hole channel of the iron tap hole 4 under the action of the gravity of the iron slag;
the hole channel of the taphole 4 is plugged by unshaped refractory material through the plugging device 2.
Example 3
Based on the tapping device of example 1, the present example provides a tapping method for treating metallurgical solid waste in an oxygen-rich shaft furnace:
opening the refractory material of the taphole 4 through the mouth gag 1 to form taphole pore channels, and opening through 2 mouth gag 1 to form 2 tapholes, wherein the size of the taphole pore channels is 35mm;
discharging the slag iron from the furnace to the outside of the furnace through a hole channel of the tap hole 4 under the dual reasons of the self gravity of the slag iron and the air supply pressure;
the hole channel of the taphole 4 is plugged by unshaped refractory material through the plugging device 2.
It can be seen that in the embodiment 2-3, the discontinuous tapping is realized by opening and plugging the tapping hole channel, and the tapping operation can be carried out at any time according to the requirement, so that the defects of poor process stability, complex process and high labor intensity of the existing oxygen-enriched shaft furnace for treating metallurgical solid waste tapping devices are overcome.
The embodiment of the utility model provides an in one or more technical scheme, still have following technological effect or advantage at least:
(1) The embodiment of the utility model provides a tapping method that is used for oxygen boosting shaft furnace to handle metallurgical solid waste, realizes the discontinuous tapping through opening and the shutoff to the taphole pore, provides the high temperature condition of firing of taphole refractory material from the time, promotes the improvement of bonding strength, improves the antiscour ability; the continuous soaking of the iron slag is isolated from the space, the erosion of the iron slag is slowed down, and the service life of the iron tap hole is effectively prolonged.
(2) The embodiment of the utility model provides a tapping device that is used for oxygen boosting shaft furnace to handle metallurgical solid useless, the mouth gag carries out the opening to the taphole refractory material, forms the taphole pore, and the refractory material storehouse is used for depositing refractory material, and refractory material enters into the taphole pore from the plugging device and carries out the shutoff, can carry out the tapping operation at any time as required, has overcome current oxygen boosting shaft furnace and has handled metallurgical solid useless tapping device and poor, the complicated and big defect of intensity of labour of process stability.
Claims (3)
1. The utility model provides a tapping device that is used for oxygen boosting shaft furnace to handle metallurgical solid useless which characterized in that: the tapping device comprises a shaft furnace tapping hole, a mouth gag, a stopper, a refractory material bin and an unshaped refractory material; the shaft furnace taphole is plugged with unshaped refractory materials, the mouth gag and the plugging device are arranged at two sides of the taphole, and the plugging device is connected with the refractory material bin.
2. The tapping device as claimed in claim 1, wherein: the number of the iron outlets of the shaft furnace is 1-4.
3. The tapping device as claimed in claim 2, wherein: the pore size of the hole passage of the taphole of the shaft furnace is 30-70 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222624798.XU CN218435823U (en) | 2022-10-01 | 2022-10-01 | Tapping device for treating metallurgical solid waste by oxygen-enriched shaft furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222624798.XU CN218435823U (en) | 2022-10-01 | 2022-10-01 | Tapping device for treating metallurgical solid waste by oxygen-enriched shaft furnace |
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| CN218435823U true CN218435823U (en) | 2023-02-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115449581A (en) * | 2022-10-01 | 2022-12-09 | 北京首钢国际工程技术有限公司 | Tapping device and method for treating metallurgical solid waste in oxygen-enriched shaft furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115449581A (en) * | 2022-10-01 | 2022-12-09 | 北京首钢国际工程技术有限公司 | Tapping device and method for treating metallurgical solid waste in oxygen-enriched shaft furnace |
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