CN111910033A - Blast furnace distributing chute - Google Patents
Blast furnace distributing chute Download PDFInfo
- Publication number
- CN111910033A CN111910033A CN202010813806.8A CN202010813806A CN111910033A CN 111910033 A CN111910033 A CN 111910033A CN 202010813806 A CN202010813806 A CN 202010813806A CN 111910033 A CN111910033 A CN 111910033A
- Authority
- CN
- China
- Prior art keywords
- fixed
- blast furnace
- chute
- arm
- distribution chute
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/18—Bell-and-hopper arrangements
- C21B7/20—Bell-and-hopper arrangements with appliances for distributing the burden
Abstract
The invention discloses a blast furnace distributing chute, which relates to the technical field of blast furnace ironmaking equipment and comprises a chute body and a hanging arm, wherein the hanging arm is provided with two arm plates which are positioned at two sides of the chute body and are oppositely arranged; and a reinforcing sleeve sleeved on the fixed pipe is arranged between the arm plate and the fixed support. Compared with the prior art, the two fixed supports are respectively connected with the two arm plates through the fixed pipes, so that concentrated stress is avoided, the fixed pipes are positioned outside the fixed supports, the fixed pipes are prevented from being influenced by high temperature and strong airflow of the groove body, the phenomenon that the cloth chute falls off in use due to deformation and even burning loss of the fixed pipes is prevented, the normal work of the cloth chute is ensured, and the service life is prolonged.
Description
Technical Field
The invention relates to the technical field of blast furnace ironmaking equipment, in particular to a distribution chute suitable for an ironmaking blast furnace with strong central airflow and high central temperature.
Background
In industries such as metallurgy and the like, a material distribution chute is a key device in the smelting process of an iron-making blast furnace, the working position of the material distribution chute is arranged at the top in a blast furnace cavity, and the operation in the blast furnace is mainly based on the development of central air flow, so that the material distribution chute is heated in a centralized manner in the use process, and the top temperature is kept in a high-temperature environment of 500-600 ℃ for a long time. As shown in figures 1 and 2, a blast furnace distribution chute used in the metallurgical industry at present comprises a trough body 101 and a hanging arm, wherein the hanging arm is provided with two arm plates 102 which are positioned on two sides of the trough body 101 and are oppositely arranged, two fixed supports 103 are oppositely arranged at the bottom close to a feed inlet of the trough body 101, a fixed through beam 104 positioned at the bottom of the trough body 101 penetrates through the two fixed supports 103, and the two arm plates 102 are arranged on the fixed through beam 104. Because the fixed through beam is arranged at the bottom of the trough body, the trough body works in a high-temperature environment for a long time and is influenced by factors such as airflow scouring in a furnace, the middle part of the fixed through beam is easy to deform and even burn, and the fixed through beam is caused to lose efficacy to cause the falling of the distribution chute in use.
Disclosure of Invention
The invention aims to solve the problem that the middle part of a fixed through beam of the conventional blast furnace distribution chute is easy to deform and even burn, so that the distribution chute falls off in use.
In order to solve the problems, the invention adopts the technical scheme that: the blast furnace distributing chute comprises a chute body and a hanging arm, wherein the hanging arm is provided with two arm plates which are arranged on two sides of the chute body and are arranged oppositely, two fixing supports are arranged at the bottom of a feed inlet of the chute body oppositely, and each fixing support is provided with a fixing pipe which extends outwards and is connected with the adjacent arm plate.
In the above technical scheme of the blast furnace distribution chute, a more specific technical scheme may also be: and a reinforcing sleeve sleeved on the fixed pipe is arranged between the arm plate and the fixed support.
Furthermore, a plurality of reinforcing rib plates connected with the fixed pipe are arranged on the outer side of the fixed support.
Furthermore, the reinforcing rib plate is connected with the fixing pipe along the axial direction of the fixing pipe, and the reinforcing sleeve is provided with a strip-shaped opening avoiding the reinforcing rib plate.
Further, the fixing tube and the reinforcing sleeve are made of 310S materials.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, each fixed support is provided with the fixed pipe which extends outwards and is connected with the adjacent arm plate, the two fixed supports are respectively connected with the two arm plates through the fixed pipes, so that concentrated stress is avoided, the fixed pipes are positioned on the outer sides of the fixed supports, the influence of high temperature and strong airflow of the trough body is avoided, the phenomenon that the fixed pipes are deformed and even burnt to cause the falling of the distribution chute in use is prevented, the normal work of the distribution chute is ensured, and the service life is prolonged.
2. A reinforcing sleeve sleeved on the fixing pipe is arranged between the arm plate and the fixing support, so that the fixing pipe is prevented from being damaged. The outer side of the fixed support is provided with a plurality of reinforcing rib plates connected with the fixed pipe, so that the connection strength of the fixed support and the fixed pipe is increased.
3. The fixed pipe and the reinforcing sleeve are made of 310S materials, and the 310S stainless steel is austenitic chromium nickel stainless steel, has good oxidation resistance and corrosion resistance, and can continuously work at high temperature.
Drawings
Fig. 1 is a schematic structural view of a conventional blast furnace distribution chute.
Figure 2 is a right side view of a prior art blast furnace distribution chute.
Fig. 3 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The invention will be further described in detail with reference to the following examples:
as shown in fig. 3, the blast furnace distribution chute comprises a chute body 1 and a hanging arm, wherein the hanging arm is provided with two arm plates 2 which are arranged on two sides of the chute body 1 and are arranged oppositely, two fixed supports 3 are arranged oppositely at the bottom part close to a feed inlet of the chute body 1, and a fixed pipe 5 which extends outwards and is connected with the adjacent arm plate 2 is arranged on each fixed support 3. Be equipped with the deep sleeve 4 of cover on fixed tube 5 between arm board 2 and fixing support 3, three deep floor 6 of being connected with fixed tube 5 are equipped with to the outside of fixing support 3, and deep floor 6 welds rather than along the axial of fixed tube 5, and deep sleeve 4 sets up the strip opening of dodging deep floor 6. The fixing tube 5 and the reinforcing sleeve 4 of the present embodiment use 310S material.
According to the invention, each fixed support 3 is provided with a fixed pipe 5 which extends outwards and is connected with the adjacent arm plate 2, the two fixed supports 3 are respectively connected with the two arm plates 2 through the fixed pipes 5, so that concentrated stress is avoided, the fixed pipes 5 are positioned at the outer sides of the fixed supports 3, the influence of high temperature and strong airflow of the groove body 1 is avoided, the phenomenon that the fixed pipes 5 are deformed or even burnt to cause the falling of the distribution chute in use is prevented, the normal work of the distribution chute is ensured, and the service life is prolonged.
Claims (7)
1. The utility model provides a blast furnace cloth chute, including cell body (1) and string arm, it has and is located to hang the arm two brachial boards (2) that cell body (1) both sides and set up relatively are close to the bottom of cell body (1) feed inlet is provided with two fixing support (3) its characterized in that relatively: each fixed support (3) is provided with a fixed pipe (5) which extends outwards and is connected with the adjacent arm plate (2).
2. The blast furnace distribution chute of claim 1, wherein: a reinforcing sleeve (4) sleeved on the fixed pipe (5) is arranged between the arm plate (2) and the fixed support (3).
3. The blast furnace distribution chute of claim 1 or 2, wherein: and a plurality of reinforcing rib plates (6) connected with the fixed pipe (5) are arranged on the outer side of the fixed support (3).
4. The blast furnace distribution chute of claim 3, wherein: the reinforcing rib plates (6) are connected with the fixing pipe (5) along the axial direction of the fixing pipe, and the reinforcing sleeve (4) is provided with strip-shaped openings avoiding the reinforcing rib plates (6).
5. The blast furnace distribution chute of claim 2, wherein: the fixing tube (5) and the reinforcing sleeve (4) are made of 310S materials.
6. The blast furnace distribution chute of claim 3, wherein: the fixing tube (5) and the reinforcing sleeve (4) are made of 310S materials.
7. The blast furnace distribution chute of claim 4, wherein: the fixing tube (5) and the reinforcing sleeve (4) are made of 310S materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010813806.8A CN111910033A (en) | 2020-08-13 | 2020-08-13 | Blast furnace distributing chute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010813806.8A CN111910033A (en) | 2020-08-13 | 2020-08-13 | Blast furnace distributing chute |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111910033A true CN111910033A (en) | 2020-11-10 |
Family
ID=73284529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010813806.8A Pending CN111910033A (en) | 2020-08-13 | 2020-08-13 | Blast furnace distributing chute |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111910033A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001220611A (en) * | 2000-02-02 | 2001-08-14 | Sankyu Inc | Method for repairing inside surface refractory of gas capturing mantel |
| CN201648413U (en) * | 2010-02-23 | 2010-11-24 | 宝山钢铁股份有限公司 | Material distribution chute on furnace top of blast furnace |
| CN105039620A (en) * | 2015-08-24 | 2015-11-11 | 首钢京唐钢铁联合有限责任公司 | Protection method for hanging shaft of blast furnace distribution chute |
| CN109988875A (en) * | 2019-04-30 | 2019-07-09 | 柳州钢铁股份有限公司 | Blast furnace material distribution chute |
| CN213012937U (en) * | 2020-08-13 | 2021-04-20 | 柳州钢铁股份有限公司 | Blast furnace distributing chute |
-
2020
- 2020-08-13 CN CN202010813806.8A patent/CN111910033A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001220611A (en) * | 2000-02-02 | 2001-08-14 | Sankyu Inc | Method for repairing inside surface refractory of gas capturing mantel |
| CN201648413U (en) * | 2010-02-23 | 2010-11-24 | 宝山钢铁股份有限公司 | Material distribution chute on furnace top of blast furnace |
| CN105039620A (en) * | 2015-08-24 | 2015-11-11 | 首钢京唐钢铁联合有限责任公司 | Protection method for hanging shaft of blast furnace distribution chute |
| CN109988875A (en) * | 2019-04-30 | 2019-07-09 | 柳州钢铁股份有限公司 | Blast furnace material distribution chute |
| CN213012937U (en) * | 2020-08-13 | 2021-04-20 | 柳州钢铁股份有限公司 | Blast furnace distributing chute |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201110 |