CN1014720B - Charging and distributing device at the top of a blast furnace - Google Patents
Charging and distributing device at the top of a blast furnaceInfo
- Publication number
- CN1014720B CN1014720B CN 88100902 CN88100902A CN1014720B CN 1014720 B CN1014720 B CN 1014720B CN 88100902 CN88100902 CN 88100902 CN 88100902 A CN88100902 A CN 88100902A CN 1014720 B CN1014720 B CN 1014720B
- Authority
- CN
- China
- Prior art keywords
- valve
- funnel
- fastening
- furnace
- blast furnace
- 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.)
- Expired
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- Manufacture Of Iron (AREA)
Abstract
The present invention relates to a charging and distributing device at the top of an iron-making blast furnace, which belongs to an iron-making blast furnace device. The charging and distributing device comprises a small receiving cone, an upper material stop valve, an upper sealing valve, a large receiving cone, a lower material stop valve, a lower sealing valve, a connection body, a fixed funnel, a supporting body, a conical material distributor, an upper pressure equalizing valve, a lower pressure equalizing valve, etc. An adjustable funnel arranged at the middle part of the supporting body can move certain distance towards any orientation in the horizontal direction under the adjustment of four adjustment screws so as to eliminate the deviation phenomenon of gas. The conical material distributor is fixed at the upper part of a furnace throat by four flat hanger rods, and only plays the role of distributing materials without playing the role of sealing gas. If the roles of the adjustable funnel and the conical material distributor are combined, the role of a rotary material distributor is completely replaced.
Description
The present invention is an iron-smelting blast furnace furnace roof stuff load and distribution equipment, belongs to blast furnace equipment.
The top charging distribution device of iron-smelting blast furnace use at present has two types:
One, two clock-type stuff load and distribution equipments of band revolving top, this device has following several shortcoming:
1. weight is big, volume is big, makes, transports difficulty.
2. the furnace charge trim of big or small clock that directly weares and teares makes big or small clock trim occur the leakage gas phenomenon very soon.
3. the trim of revolving top also the leakage gas phenomenon occurs because of wearing and tearing easily.Therefore, blast furnace is difficult for realizing high pressure or ultra-high voltage operation.
4. the powdery furnace charge is the pointed distribution of heap in furnace throat, and the coal gas energy utilizes insufficient.
Two, the no bell top charging distribution device of band swivel chute, this device also has 3 shortcomings:
1. complex structure.
2. the trim of turning unit, easily because of the leakage gas phenomenon appears in wearing and tearing, blast furnace is difficult for realizing high pressure or ultra-high voltage operation.
3. the powdery furnace charge is short arc shaped distribution in furnace throat, though the distribution more pointed than heap is superior, but still is uneven, still influences making full use of of coal gas energy to a certain extent.
Purpose of design of the present invention:
1. simplify the structure of top charging distribution device, improve sealing and charging cloth performance simultaneously.
2. eliminate the direct wearing and tearing of furnace charge, and cancel turning unit, thoroughly eliminate the leakage gas phenomenon of top charging distribution device, can make blast furnace realize high pressure or ultra-high voltage operation trim.
3. make the powdery furnace charge in furnace throat, be the uniform circular band and distribute, to improve the situation of utilizing of coal gas energy.
Solution of the present invention:
1. below little hopper (1), install shutting off valve (2) and upper sealing valve (3).Shutting off valve (5) and lower seal valve (6) under the installation below big hopper (4).Upper sealing valve (3) and lower seal valve (6) only play sealing coal gas, and furnace charge can not contact with the trim of seal valve, and this has just improved the sealing property of this device.Furnace charge only rubs mutually with upper cut-off valve (2) and following shutting off valve (5).But shutting off valve only plays a part by furnace charge, does not play sealing coal gas, and the abrasion piece of shutting off valve is easy to change.
2. twice blanking process of little hopper (1) and big hopper (4) is vertical funnel blanking process.The furnace size segregation phenomena that occurs when making truck topple over furnace charge in little hopper (1) is eliminated (this phenomenon is called funneling effect).Blast furnace burden is evenly distributed in furnace charge in the furnace throat after by the circular cone distributor that is fixed on furnace throat top.Powdery furnace charge in the furnace charge then is evenly distributed on the horizontal plane of furnace throat with the endless belt shape, thereby can eliminate pointed distribution of the uneven heap of powdery burden distribution or short circular-arc distribution.
3. between lower seal valve (6) and circular cone distributor (12), an adjustable funnel (9) is arranged, it regulates its level attitude by four adjusting screw(rod)s (10).Under normal circumstances, the vertical center line of following shutting off valve (5), lower seal valve (6), fixed funnel (8), adjustable funnel (9) and circular cone distributor (12) coincides with the vertical center line of furnace throat.When certain orientation of blast furnace coal gas occurs and goes phenomenon partially, just adjust four adjusting screw(rod)s (10), adjustable funnel (9) is moved to the capable partially orientation of coal gas occurring, can eliminate the capable partially phenomenon of coal gas.The effect of adjustable funnel (9) and circular cone distributor (12) combines, and has just replaced the effect of two clock-type top charging distribution device revolving tops fully and has not had the effect of clock top charging distribution device swivel chute.But owing to cancelled turning unit, just thoroughly solved the sealing problem of top charging distribution device, helped blast furnace and realize high pressure or ultra-high voltage operation.
Accompanying drawing: iron-smelting blast furnace furnace roof stuff load and distribution equipment longitudinal diagram.
Embodiment of the invention accompanying drawings is as follows:
As shown in drawings, the major parts of this device is: below little hopper (1), fastening upper cut-off valve (2), fastening upper sealing valve (3) below upper cut-off valve (2), fastening big hopper (4) below upper sealing valve (3), fastening shutting off valve (5) down below big hopper (4), fastening lower seal valve (6) below following shutting off valve (5), below lower seal valve (6), be fastenedly connected body (7), fastening supporter (11) below linker (7).Between linker (7) and supporter (11), fix a fixed funnel (8).Supporter (11) tightens together with the flange on fire door box hat (14) top.At the middle part of supporter (11) an adjustable funnel (9) is set.Fix a circular cone distributor (12) on the top of furnace throat, circular cone distributor (12) is fixed on the fire door box hat (14) by four flat suspension rods (13).
The charging part of this device mainly is made up of little hopper (1), upper cut-off valve (2), upper sealing valve (3), big hopper (4), following shutting off valve (5), lower seal valve (6), linker (7), supporter (11) etc.Fix a fixed funnel (8) between linker (7) and the supporter (11).Supporter (11) tightens together with the flange on fire door box hat (14) top.Between above-mentioned each parts, all connect and bolted, thereby constitute the integral body of a sealing with last furnace shell with flange.
Middle part in supporter (11) is provided with an adjustable funnel (9), around adjustable funnel (9), fixes an adjusting screw(rod) (10), adjustable funnel (9) is fixed on the middle part of supporter (11) for per 90 °.Under the adjusting of adjusting screw(rod) (10), adjustable funnel (9) can move certain distance to any orientation of horizontal direction.On the top of furnace throat, a circular cone distributor (12) is set, circular cone distributor (12) is fixed on the fire door box hat (14) by four flat suspension rods (13).Under normal circumstances, following shutting off valve (5), lower seal valve (6), fixed funnel (8), adjustable funnel (9) and the vertical center line of circular cone distributor (12) and the vertical center line of furnace throat coincide.Furnace charge is distributed evenly on the horizontal plane of furnace throat after passing through adjustable funnel (9) and circular cone distributor (12), and the powdery furnace charge also is evenly distributed on the furnace throat horizontal plane with the endless belt shape.When certain orientation coal gas flows out existing row partially, by adjusting adjusting screw(rod) (10), adjustable funnel (9) is moved to the orientation that the coal air flow deflection occurs, then this orientation is because the inclined to one side cloth of furnace charge and coal gas stream gone elimination partially.In order the charging segregation phenomenon to occur under the four flat suspension rods (13) that prevent circular cone distributor (12), flat suspension rod (13) is a flat along the furnace charge flow direction.Owing to do not need to carry out metal processing, circular cone distributor (12) and flat suspension rod (13) are to cast with the hard, wear-resistant steel alloy, reach the life-span of generation blast furnace with the work-ing life that guarantees it.This has just constituted a complete distribution device that does not have turning unit.
Top at big hopper (4) is equipped with equalizing valve (17) and following equalizing valve (15).Last equalizing valve (17) is opened the back and is communicated with atmosphere.Equalizing valve when can be used as little hopper (1) blanking.Following equalizing valve is opened the back and is communicated with gas up take.Equalizing valve when can be used as big hopper (4) blanking.This has just constituted the equal pressing system of top charging distribution device.Pressure when eliminating gas pressure to upper sealing valve (3) and lower seal valve (6) unlatching, and when eliminating little hopper (1) and big hopper (4) blanking coal gas to the buoyancy of furnace charge, thereby just can guarantee that furnace charge enters in the blast furnace throat by whole stuff load and distribution equipment smoothly.
Claims (3)
1, a kind of iron-smelting blast furnace furnace roof stuff load and distribution equipment, it is characterized in that, below little hopper (1), fastening upper cut-off valve (2), fastening upper sealing valve (3) below upper cut-off valve (2), fastening big hopper (4) below upper sealing valve (3), fastening shutting off valve (5) down below big hopper (4), fastening lower seal valve (6) below following shutting off valve (5), below lower seal valve (6), be fastenedly connected body (7), fastening supporter (11) below linker (7), fix a fixed funnel (8) and an adjustable funnel (9) is set at supporter (11) middle part, around adjustable funnel (9), fix an adjusting screw(rod) (10) for per 90 °, under the adjusting of governor lever (10), adjustable funnel (9) can move certain distance to any orientation of horizontal direction, and circular cone distributor (12) is fixed on the fire door box hat (14) by four flat suspension rods (13).
2, device according to claim 1 is characterized in that, circular cone distributor (12) and flat suspension rod (13) are to cast with the heat-resistance abrasion-resistance alloy steel.
3, device according to claim 1, it is characterized in that, under normal circumstances, the vertical center line and the furnace throat vertical center line of following shutting off valve (5), lower seal valve (6), fixed funnel (8), adjustable funnel (9) and circular cone distributor (12) coincide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88100902 CN1014720B (en) | 1988-02-19 | 1988-02-19 | Charging and distributing device at the top of a blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88100902 CN1014720B (en) | 1988-02-19 | 1988-02-19 | Charging and distributing device at the top of a blast furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1035134A CN1035134A (en) | 1989-08-30 |
| CN1014720B true CN1014720B (en) | 1991-11-13 |
Family
ID=4831562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88100902 Expired CN1014720B (en) | 1988-02-19 | 1988-02-19 | Charging and distributing device at the top of a blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1014720B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU91559B1 (en) * | 2009-04-28 | 2010-10-29 | Wurth Paul Sa | Method for feeding a burden to a blast furnace |
| CN102352419B (en) * | 2011-09-28 | 2013-08-14 | 中冶南方工程技术有限公司 | Compact valve box device for rotating upper sealing valve of blast furnace |
| CN103103304A (en) * | 2013-01-18 | 2013-05-15 | 宁波钢铁有限公司 | Device and method capable of realizing belt pressing washing |
-
1988
- 1988-02-19 CN CN 88100902 patent/CN1014720B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1035134A (en) | 1989-08-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |