CN109988875A - Blast furnace material distribution chute - Google Patents
Blast furnace material distribution chute Download PDFInfo
- Publication number
- CN109988875A CN109988875A CN201910363459.0A CN201910363459A CN109988875A CN 109988875 A CN109988875 A CN 109988875A CN 201910363459 A CN201910363459 A CN 201910363459A CN 109988875 A CN109988875 A CN 109988875A
- Authority
- CN
- China
- Prior art keywords
- shell
- chute
- lag
- blast furnace
- wear
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 18
- 238000009826 distribution Methods 0.000 title claims abstract description 15
- 238000010276 construction Methods 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract description 5
- 230000000116 mitigating effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 239000000571 coke Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Blast Furnaces (AREA)
- Chutes (AREA)
Abstract
The invention discloses a kind of blast furnace material distribution chutes, it is related to blast furnace ironmaking equipment technical field, it include chute ontology, boom is connected with close to the chute ontology feed inlet, the chute ontology has the shell of monolithic construction, the shell is equipped with U-lag, is installed with the wear-resistant liner fitted closely with its inner surface in the U-lag, the pressing plate being fixed on the wear-resistant liner in the U-lag is relatively set in the opening of the U-lag.Compared with prior art, the present invention does not need that crossbeam is arranged in the discharge outlet of chute ontology, avoids the occurrence of when using 10~15 ° of inclination angle clothes, and furnace charge bounces the phenomenon that strike crossbeam causes crossbeam abrasion to be even broken.Shell is not easy to deform by high temperature, prevent snap, disrepair phenomenon, prolong the service life.Wear-resistant liner slows down furnace charge impact and causes to wear, and the slot bottom for not needing chute ontology has padding, mitigates the weight of the distributor chute, while mitigating the load of the distributor chute rotating device.
Description
Technical field
The present invention relates to blast furnace ironmaking equipment technical field, especially a kind of blast furnace material distribution suitable for small inclination cloth is slipped
Slot.
Background technique
Distributor chute is a critical component of blast furnace, is the last one channel that furnace charge stream enters blast furnace,
The operating position of distributor chute is the top in blast furnace chamber, is chronically in 400~600 DEG C of hot environment and works.Furnace
Material is entered on distributor chute by certain flow, and distributor chute is raised to certain inclination angle by technique requirement, while distributor chute is also
It is at the uniform velocity rotated in vertical direction, realizes the uniform spreading of the furnace charge in blast furnace.A kind of blast furnace material distribution chute, packet are used at present
The chute ontology being welded by multistage U-lag body is included, is equipped at least twice arc resistance material of protrusion in the slot bottom of chute ontology
Muscle, the discharge outlet of chute ontology are equipped with two crossbeams for reinforcing, are connected with boom close to chute ontology feed inlet.It is this
Blast furnace material distribution chute has the disadvantage that 1, when using 10~15 ° of small inclination clothes in process of production, and the furnace charge of flowing has
Part can bounce strike crossbeam, and crossbeam abrasion is caused even to be broken；It is only adapted in 15~45 ° of inclination angle clothes, because furnace charge dispenses
Range it is wide, cause gas utilization rate poor, fuel consumption is high.2, the weld seam of chute ontology is more, is easy by high temperature deformation
It now snaps, disrepair phenomenon, often resulted in chute ontology to damage using six months or so, service life is short.3, chute ontology
Slot bottom can have padding, can slow down the impact of burden flow and reach wear-resistant, but increase the weight of distributor chute, aggravate
The load of distributor chute rotating device, causes rotating device to be easy to happen failure.
Summary of the invention
The problem to be solved by the invention is to provide a kind of blast furnace material distribution chute, it can solve is inclined using 10~15 ° small
When the cloth of angle, furnace charge has part that can bounce strike crossbeam, and crossbeam abrasion is caused even to be broken；The weld seam of chute ontology is more, by
High temperature deformation be easy to appear snap, disrepair phenomenon；The slot bottom of chute ontology can have padding, aggravate distributor chute rotating device
The problem of load.
To solve the above-mentioned problems, the technical solution adopted by the present invention is that: this blast furnace material distribution chute includes chute sheet
Body is connected with boom close to the chute ontology feed inlet, and the chute ontology has the shell of monolithic construction, the shell
Equipped with U-lag, the wear-resistant liner fitted closely with its inner surface is installed in the U-lag, in the opening phase of the U-lag
To being provided with the pressing plate being fixed on the wear-resistant liner in the U-lag.
In above-mentioned blast furnace material distribution chute technical solution, more specific technical solution may also is that the shell discharge port section
Trench bottom be half elliptic, elliptical long axis is located at vertical direction.
Further, the wear-resistant liner is assemblied in the U-lag using segmented.
Further, two pieces of support plates are relatively set on the outside of the shell feed inlet, are set in the support plate
There is mounting hole, the boom is connect by being threaded onto the bolt of the mounting hole with the shell.
By adopting the above-described technical solution, compared with prior art, the present invention has the following advantages:
1, chute ontology of the invention uses the insert wear-resistant liner in the shell of monolithic construction, improves the whole of chute ontology
Body intensity does not need that crossbeam is arranged in the discharge outlet of chute ontology, avoids the occurrence of when using 10~15 ° of inclination angle clothes, furnace
Material bounces the phenomenon that strike crossbeam causes crossbeam abrasion to be even broken.The shell of monolithic construction is not easy to deform by high temperature, is prevented
Only occur snapping, disrepair phenomenon, prolong the service life.Wear-resistant liner can slow down the impact of burden flow and cause to wear, and be not required to
So that the slot bottom of chute ontology is had padding, alleviate the weight of the distributor chute, while alleviating the distributor chute rotating dress
The load set, rotating device are not susceptible to failure.
2, the trench bottom of shell discharge port section is half elliptic, and elliptical long axis is located at vertical direction；Prevent shell from discharging
Mouth section is seriously caused dismantling device to be difficult to enter by high temperature deformation, makes the distributor chute easy disassembling.
3, wear-resistant liner is assemblied in U-lag using segmented, and wear-resistant liner installation and replacement are easy.
4, two pieces of support plates are relatively set on the outside of shell feed inlet, support plate is equipped with mounting hole, and boom is logical
It crosses and is threaded onto the bolt of mounting hole and is connect with shell；Boom easy disassembling.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
Fig. 2 is the cross-sectional view in Fig. 1 at A-A.
Specific embodiment
The present invention will be further described below with reference to the accompanying drawings:
A kind of blast furnace material distribution chute as shown in Figure 1 and Figure 2, includes chute ontology, and chute ontology has the shell of monolithic construction
Body 1 is relatively set with two pieces of support plates 5 on the outside of 1 feed inlet of shell, and support plate 5 is equipped with mounting hole, and boom 4 passes through
The bolt for being threaded onto mounting hole is connect with shell 1.Shell 1 has U-lag, is installed in U-lag and fits closely with its inner surface
Wear-resistant liner 3, wear-resistant liner 3 is assemblied in U-lag using segmented.Being relatively set in the opening of U-lag will be wear-resisting
Liner plate 3 is fixed on the pressing plate 2 in U-lag, and pressing plate 2 is connect by bolt with shell 1.The trench bottom of 1 discharge port section of shell is half
Ellipse, elliptical long axis are located at vertical direction.
Chute ontology of the invention uses the insert wear-resistant liner 3 in the shell 1 of monolithic construction, improves chute ontology
Integral strength, do not need chute ontology discharge outlet be arranged crossbeam, avoid the occurrence of use 10~15 ° of small inclination clothes
When, furnace charge bounces the phenomenon that strike crossbeam causes crossbeam abrasion to be even broken.The shell 1 of monolithic construction is not allowed mutability by high temperature
Shape, prevent snap, disrepair phenomenon, prolong the service life.Wear-resistant liner 3 can slow down the impact of burden flow and cause to grind
Damage, does not need that the slot bottom of chute ontology is made to have padding, alleviates the weight of the distributor chute, while alleviating the distributor chute
The load of rotating device, rotating device are not susceptible to failure.The present invention can not only be competent in 15~45 ° of inclination angle clothes, but also
Suitable for 10~15 ° of inclination angle clothes.Using 10~15 ° of inclination angle clothes, the range that furnace charge dispenses is narrower more evenly, gas utilization rate
Higher, reducing gas is used more effectively, to reduce coke consumption.The distributor chute of our unit's 1# furnace uses the design,
In July, 2018 installs and uses so far, and distributor chute and rotary system are using normally, and conditions of blast furnace is stablized, high and stable yields, and 1# furnace is comprehensive
It closes and saves coke 3kg/tFe after improving.About 79.19 ten thousand tons of in July, 2018 -- 12 monthly outputs.It saves altogether: 79.19 ten thousand tons × 3 ×
2.21 yuan/ton=5,250,000 yuan.
Claims (5)
1. a kind of blast furnace material distribution chute includes chute ontology, boom (4) are connected with close to the chute ontology feed inlet,
Be characterized in that: the chute ontology has the shell (1) of monolithic construction, and the shell (1) is equipped with U-lag, in the U-lag
It is installed with the wear-resistant liner (3) fitted closely with its inner surface, being relatively set in the opening of the U-lag will be described wear-resisting
Liner plate (3) is fixed on the pressing plate (2) in the U-lag.
2. blast furnace material distribution chute according to claim 1, it is characterised in that: the trench bottom of shell (1) the discharge port section is
Half elliptic, elliptical long axis are located at vertical direction.
3. blast furnace material distribution chute according to claim 1 or claim 2, it is characterised in that: the wear-resistant liner (3) is filled using segmented
It fits in the U-lag.
4. blast furnace material distribution chute according to claim 1 or claim 2, it is characterised in that: close to the outside of the shell (1) feed inlet
Two pieces of support plates (5) are relatively set with, the support plate (5) is equipped with mounting hole, and the boom (4) is by being threaded onto the peace
The bolt in dress hole is connect with the shell (1).
5. blast furnace material distribution chute according to claim 3, it is characterised in that: close to the outside phase of the shell (1) feed inlet
To two pieces of support plates (5) are provided with, the support plate (5) is equipped with mounting hole, and the boom (4) is by being threaded onto the installation
The bolt in hole is connect with the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910363459.0A CN109988875B (en) | 2019-04-30 | 2019-04-30 | Blast furnace distributing chute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910363459.0A CN109988875B (en) | 2019-04-30 | 2019-04-30 | Blast furnace distributing chute |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109988875A true CN109988875A (en) | 2019-07-09 |
| CN109988875B CN109988875B (en) | 2024-02-20 |
Family
ID=67136022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910363459.0A Active CN109988875B (en) | 2019-04-30 | 2019-04-30 | Blast furnace distributing chute |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109988875B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111910033A (en) * | 2020-08-13 | 2020-11-10 | 柳州钢铁股份有限公司 | Blast furnace distributing chute |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1487527A (en) * | 1975-07-18 | 1977-10-05 | Wurth Anciens Ets Paul | Distribution chute of a shaft furnace charging installation |
| JPH0971803A (en) * | 1995-09-01 | 1997-03-18 | Sumitomo Metal Ind Ltd | Heat-proof type distribution chute for bell-less blast furnace |
| JP2004027324A (en) * | 2002-06-27 | 2004-01-29 | Kurimoto Ltd | Liner and its fitting method |
| CN101798608A (en) * | 2010-03-22 | 2010-08-11 | 本钢板材股份有限公司 | Protective layer arranged outside distribution chute of blast furnace and preparation method thereof |
| 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 |
| CN201686709U (en) * | 2010-03-30 | 2010-12-29 | 中钢集团洛阳耐火材料研究院有限公司 | Abrasion-resistant ceramic bell-less blast furnace distribution chute |
| JP2018178223A (en) * | 2017-04-19 | 2018-11-15 | 新日鐵住金株式会社 | Blast furnace pivoted chute |
| CN210151144U (en) * | 2019-04-30 | 2020-03-17 | 柳州钢铁股份有限公司 | Blast furnace distributing chute |
| CN113584245A (en) * | 2021-07-14 | 2021-11-02 | 徐州德耀矿山机械制造有限公司 | Blast furnace distributing chute with chute lining plate |
-
2019
- 2019-04-30 CN CN201910363459.0A patent/CN109988875B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1487527A (en) * | 1975-07-18 | 1977-10-05 | Wurth Anciens Ets Paul | Distribution chute of a shaft furnace charging installation |
| JPH0971803A (en) * | 1995-09-01 | 1997-03-18 | Sumitomo Metal Ind Ltd | Heat-proof type distribution chute for bell-less blast furnace |
| JP2004027324A (en) * | 2002-06-27 | 2004-01-29 | Kurimoto Ltd | Liner and its fitting method |
| 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 |
| CN101798608A (en) * | 2010-03-22 | 2010-08-11 | 本钢板材股份有限公司 | Protective layer arranged outside distribution chute of blast furnace and preparation method thereof |
| CN201686709U (en) * | 2010-03-30 | 2010-12-29 | 中钢集团洛阳耐火材料研究院有限公司 | Abrasion-resistant ceramic bell-less blast furnace distribution chute |
| JP2018178223A (en) * | 2017-04-19 | 2018-11-15 | 新日鐵住金株式会社 | Blast furnace pivoted chute |
| CN210151144U (en) * | 2019-04-30 | 2020-03-17 | 柳州钢铁股份有限公司 | Blast furnace distributing chute |
| CN113584245A (en) * | 2021-07-14 | 2021-11-02 | 徐州德耀矿山机械制造有限公司 | Blast furnace distributing chute with chute lining plate |
Non-Patent Citations (1)
| Title |
|---|
| 杨凤民: "高炉布料溜槽壳体选材分析", 冶金设备, no. 238, pages 50 - 52 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111910033A (en) * | 2020-08-13 | 2020-11-10 | 柳州钢铁股份有限公司 | Blast furnace distributing chute |
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| Publication number | Publication date |
|---|---|
| CN109988875B (en) | 2024-02-20 |
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