阅读说明：本技术 一种转炉渣补料斗、吊具及其使用方法 (Converter slag replenishing hopper, lifting appliance and using method of converter slag replenishing hopper ) 是由 潘军 赵滨 顾仲骏 刘威 于 2021-10-21 设计创作，主要内容包括：本发明公开了一种转炉渣补料斗、吊具及其使用方法,涉及转炉炼钢技术领域。该转炉渣补料斗、吊具,包括转炉渣补料斗、转炉渣补料斗主吊具和转炉渣补料斗副吊具,所述转炉渣补料斗包括渣补料斗本体,所述渣补料斗本体左侧的底部设置有挂耳,所述渣补料斗本体的正表面和背部以及渣补料斗本体左侧的顶部均设置有吊眼。该转炉渣补料斗、吊具及其使用方法,通过在渣补料斗下料口斜面上设有凸台结构,起到了减缓生铁块加入转炉内速度的作用,有利于生铁块平铺至整个转炉倒渣面炉衬,补炉效果得以保,同时,在渣补料斗吊具的配合使用下,大大提高了作业效率和安全性。(The invention discloses a converter slag replenishing hopper, a lifting appliance and a using method thereof, and relates to the technical field of converter steelmaking. This converter slag benefit hopper, hoist, including converter slag benefit hopper, converter slag benefit hopper main hoist and the vice hoist of converter slag benefit hopper, the converter slag benefit hopper includes the sediment feed hopper body, the left bottom of sediment feed hopper body is provided with the hangers, the positive surface and the back of sediment feed hopper body and the left top of sediment feed hopper body all are provided with the lifting eye. According to the converter slag supplement hopper, the lifting appliance and the using method of the converter slag supplement hopper, the boss structure is arranged on the inclined surface of the feed opening of the slag supplement hopper, so that the effect of slowing down the speed of the pig iron blocks added into the converter is achieved, the pig iron blocks can be favorably paved to a converter lining of a slag pouring surface of the whole converter, the furnace supplement effect can be guaranteed, and meanwhile, the operation efficiency and the safety are greatly improved under the matched use of the slag supplement hopper lifting appliance.)

1. The utility model provides a converter slag moisturizing fill, hoist which characterized in that: comprises a converter slag supplement hopper, a main lifting appliance of the converter slag supplement hopper and an auxiliary lifting appliance of the converter slag supplement hopper, wherein the converter slag supplement hopper comprises a slag supplement hopper body (1), the bottom of the left side of the slag supplementing hopper body (1) is provided with a hanging lug (3), the front surface and the back of the slag supplementing hopper body (1) and the top of the left side of the slag supplementing hopper body (1) are provided with hanging holes (2), a boss (4) is arranged at the bottom of the right side of the slag supplement hopper body (1), the main lifting appliance of the converter slag supplement hopper comprises a main lifting ring (5), three main shackles (6) are sleeved on the main lifting ring (5), the bottom of each main shackle (6) is connected with a main hook head (8) through a main chain (7), the auxiliary lifting appliance of the converter slag replenishing hopper comprises an auxiliary lifting ring (9), an auxiliary shackle (10) is sleeved at the bottom of the auxiliary lifting ring (9), the bottom of the auxiliary shackle (10) is connected with an auxiliary hook head (12) through an auxiliary chain (11).

2. The use method of the converter slag replenishing hopper and the lifting appliance is characterized in that: the converter slag replenishing hopper and the lifting appliance comprise the converter slag replenishing hopper and the lifting appliance of claim 1, and the operation is as follows:

when the converter slag-reversing surface furnace lining needs slag supplement maintenance, according to the corrosion condition of the converter slag-reversing surface furnace lining, a certain amount of pig iron blocks meeting the slag supplement requirement are added in a scrap steel span slag supplement hopper in advance, a main hanging ring (5) is hung into a main hook of a crown block, three main hook heads (8) of a main hanger are respectively hung into hanging holes (2) of the slag supplement hopper, the main hook of the crown block rises, the slag supplement hopper loaded with the pig iron blocks is hung and conveyed to the position near a furnace base needing slag supplement, the main hook of the crown block descends, and the slag supplement hopper falls to a furnace front operation platform;

the hook head of a lifting eye at the center of a station plate at the rear side of a slag supplementing hopper is detached, an auxiliary lifting ring (9) of an auxiliary lifting appliance is hung into an auxiliary hook of a crown block, an auxiliary hook head (12) of the auxiliary lifting appliance is hung into a hanging lug (3) of the slag supplementing hopper, the crown block main hook and the auxiliary hook are lifted and moved simultaneously, the slag supplementing hopper loaded with pig iron blocks is lifted and transported to a furnace base needing slag supplementation, and the slag supplementing reference angle of a converter is 60-65 degrees;

when the inclined plane of the feed opening of the slag supplementing hopper is born on the converter mouth of the converter, the auxiliary hook of the crown block slowly rises, and the converter mouth of the converter slowly swings downwards, so that the purpose that the pig iron blocks are tiled to the furnace lining of the whole slag dumping surface is realized, and the furnace supplementing effect is ensured.

Technical Field

The invention relates to the technical field of converter steelmaking, in particular to a converter slag replenishing hopper, a lifting appliance and a using method thereof.

Background

In the production process of converter steelmaking, the furnace lining of the converter slag pouring surface is affected by comprehensive factors such as mechanical scouring action of molten iron and scrap steel, chemical erosion of molten steel and slag on the furnace lining, and furnace lining peeling caused by temperature gradient change, so that local parts of the furnace lining are damaged to different degrees, and in order to ensure that the utilization rate of the furnace lining of the converter and the operation rate of the converter reach the highest, the damaged part of the furnace lining must be maintained in time.

The pig iron block slag supplement process is a slag pouring surface furnace lining maintenance method generally adopted by most steel enterprises at present due to the characteristics of short time, corrosion resistance, good effect and low cost. The traditional slag supplement operation flow is as follows: after tapping, a certain amount of pig iron blocks are added into the furnace through the scrap steel hopper or the hopper, and the furnace mouth of the converter slowly swings downwards along with the scrap steel hopper or the hopper while the pig iron blocks are added, so that the pig iron blocks are ensured to be tiled to the slag dumping surface furnace lining. After the pig iron blocks are added, the converter is repeatedly shaken to ensure that the slag completely covers the pig iron blocks so as to ensure the slag supplement effect.

Because current steel scrap bucket or hopper are flat structure, when adding the pig iron piece in to the converter, if the converter fire door is on the high side, the driving auxiliary hook rises very fast, perhaps the converter shakes downwards and the influence of the ascending cooperation of driving auxiliary hook mistake isoparametric factor for the pig iron piece joining speed is too fast in steel scrap bucket or the hopper, and the pig iron piece most rear portion in the landing face furnace lining, can not play the effect of the whole landing face furnace lining, and then can not reach the purpose of protecting the stove.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a converter slag replenishing hopper, a lifting appliance and a using method thereof, and solves the problems that when a converter is filled with a pig iron block due to the fact that the existing waste steel hopper or hopper is of a flat-bottom structure, if a converter mouth is higher, a travelling crane auxiliary hook rises faster, or the converter shakes downwards and is matched with the travelling crane auxiliary hook to be out of order, and the like, the adding speed of the pig iron block in the waste steel hopper or hopper is too fast, most of the pig iron block slides to the middle rear part of a slag-dumping face furnace lining, the effect of tiling the whole slag-dumping face furnace lining cannot be achieved, and the purpose of protecting the converter cannot be achieved.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a converter slag benefit fill, hoist, includes converter slag benefit fill, the main hoist of converter slag benefit fill and the vice hoist of converter slag benefit fill, the converter slag benefit is fought including the sediment feed supplement fill body, the left bottom of sediment feed supplement fill body is provided with the hangers, the positive surface and the back of sediment feed supplement fill body and the left top of sediment feed supplement fill body all are provided with the lifting eye, the bottom on sediment feed supplement fill body right side is provided with the boss, the main hoist of converter slag benefit fill includes main rings, the cover is equipped with three main and unloads the knot on the main rings, the main bottom of unloading the knot is connected with main gib head through the main chain, the vice hoist of converter slag benefit fill includes vice rings, the bottom cover of vice rings is equipped with vice the knot of unloading, the bottom of vice knot of unloading is connected with vice gib head through vice chain.

The use method of the converter slag replenishing hopper and the lifting appliance comprises the converter slag replenishing hopper and the lifting appliance, and comprises the following specific operations:

when the converter slag-reversing surface furnace lining needs slag supplement maintenance, according to the corrosion condition of the converter slag-reversing surface furnace lining, a certain amount of pig iron blocks meeting the slag supplement requirement are added in a scrap steel span slag supplement hopper in advance, a main hanging ring is hung into a main hook of an overhead traveling crane, three main hook heads of a main hanger are respectively hung into hanging holes of the slag supplement hopper, the main hook of the overhead traveling crane rises, the slag supplement hopper loaded with the pig iron blocks is hung and transported to the position near a furnace base needing slag supplement, the main hook of the overhead traveling crane descends, and the slag supplement hopper falls to a furnace front operation platform;

the hook head of a lifting eye at the center of a station plate at the rear side of a slag supplementing hopper is hung off, an auxiliary lifting ring of an auxiliary lifting appliance is hung on an auxiliary hook of an overhead crane, the auxiliary hook head of the auxiliary lifting appliance is hung on a hanging lug of the slag supplementing hopper, the overhead crane and the auxiliary hook are lifted and moved simultaneously, the slag supplementing hopper loaded with pig iron blocks is lifted and transported to a furnace base needing slag supplementation, and a slag supplementing reference angle of a converter is 60-65 degrees;

when the inclined plane of the feed opening of the slag supplementing hopper is born on the converter mouth of the converter, the auxiliary hook of the crown block slowly rises, and the converter mouth of the converter slowly swings downwards, so that the purpose that the pig iron blocks are tiled to the furnace lining of the whole slag dumping surface is realized, and the furnace supplementing effect is ensured.

(III) advantageous effects

The invention provides a converter slag replenishing hopper, a lifting appliance and a using method of the converter slag replenishing hopper. The method has the following beneficial effects:

according to the converter slag supplement hopper, the lifting appliance and the using method of the converter slag supplement hopper, the boss structure is arranged on the inclined surface of the feed opening of the slag supplement hopper, so that the effect of slowing down the speed of the pig iron blocks added into the converter is achieved, the pig iron blocks can be favorably paved to a converter lining of a slag pouring surface of the whole converter, the furnace supplement effect can be guaranteed, and meanwhile, the operation efficiency and the safety are greatly improved under the matched use of the slag supplement hopper lifting appliance.

Drawings

FIG. 1 is a side view of a converter slag replenishing hopper according to the present invention;

FIG. 2 is a plan view of a converter slag replenishing hopper according to the present invention;

FIG. 3 is a schematic structural view of a main lifting appliance of the converter slag replenishing hopper of the invention;

FIG. 4 is a schematic structural view of a secondary hanger of the converter slag replenishing hopper of the present invention.

In the figure: 1. a slag supplement hopper body; 2. lifting eyes; 3. hanging a lug; 4. a boss; 5. a main hoisting ring; 6. a main shackle; 7. a main chain; 8. a main hook head; 9. an auxiliary hoisting ring; 10. auxiliary shackle; 11. a secondary chain; 12. and an auxiliary hook head.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a converter slag benefit fill, the hoist, including converter slag benefit fill, the vice hoist of converter slag benefit fill main hoist of converter slag benefit fill and converter slag benefit fill, converter slag benefit fill is including the sediment feed fill body 1, the left bottom of sediment feed fill body 1 is provided with hangers 3, the positive surface and the back of sediment feed fill body 1 and the left top of sediment feed fill body 1 all are provided with lifting eye 2, the bottom on sediment feed fill body 1 right side is provided with boss 4, converter slag benefit fill owner hoist includes main rings 5, the cover is equipped with three main knot 6 of breaking out on the main rings 5, the main bottom of breaking out 6 is connected with main gib head 8 through main chain 7, the vice hoist of converter slag benefit fill includes vice rings 9, the bottom cover of vice rings 9 is equipped with vice knot 10 of breaking out, the bottom of vice knot 10 of breaking out is connected with vice gib head 12 through vice chain 11.

The use method of the converter slag supplement hopper and the lifting appliance comprises the converter slag supplement hopper and the lifting appliance, and comprises the following specific operations:

when the converter slag-reversing surface furnace lining needs slag supplement maintenance, according to the corrosion condition of the converter slag-reversing surface furnace lining, a certain amount of pig iron blocks meeting the slag supplement requirement are added in a scrap steel span slag supplement hopper in advance, a main hanging ring 5 is hung into a main hook of a crown block, three main hook heads 8 of a main hanger are respectively hung into hanging holes 2 of the slag supplement hopper, the main hook of the crown block rises, the slag supplement hopper loaded with the pig iron blocks is hung and conveyed to the position near a furnace seat needing slag supplement, the main hook of the crown block descends, and the slag supplement hopper falls to a furnace front operation platform;

the hook head of a lifting eye at the center of a station plate at the rear side of a slag supplementing hopper is detached, an auxiliary lifting ring 9 of an auxiliary lifting appliance is hung into an auxiliary hook of a crown block, an auxiliary hook head 12 of the auxiliary lifting appliance is hung into a hanging lug 3 of the slag supplementing hopper, the crown block main hook and the auxiliary hook are lifted and moved simultaneously, the slag supplementing hopper loaded with pig iron blocks is lifted and transported to a furnace base needing slag supplementing, and a slag supplementing reference angle is 60-65 degrees;

when the inclined plane of the feed opening of the slag supplementing hopper is born on the converter mouth of the converter, the auxiliary hook of the crown block slowly rises, and the converter mouth of the converter slowly swings downwards, so that the purpose that the pig iron blocks are tiled to the furnace lining of the whole slag dumping surface is realized, and the furnace supplementing effect is ensured.

The converter slag replenishing hopper, the lifting appliance and the use method thereof have the following implementation effects from the time of putting into use:

(1) compared with the conventional method, the slag supplementing hopper has the advantages that the lug boss structure is arranged on the inclined surface of the feed opening of the slag supplementing hopper, so that the effect of slowing down the speed of the pig iron blocks added into the converter is achieved, the pig iron blocks are favorably paved to the furnace lining of the slag pouring surface of the whole converter, and the furnace supplementing effect is ensured.

(2) By means of the slag supplement hopper lifting appliance, the slag supplement operation safety is improved, the slag supplement operation efficiency is effectively improved, the maintenance effect of the converter slag pouring surface lining is good, and the service life of the converter lining and the production efficiency of the converter are further improved.

(3) The slag supplementing hopper and the lifting appliance are simple in structure, convenient to obtain materials, convenient to use, time-saving, labor-saving and relatively low in manufacturing cost.

When the converter slag pouring surface lining is seriously corroded and needs slag supplement maintenance, 75-90 kg/t of steel pig iron blocks are added into a slag supplement hopper spanned by waste steel in advance, a hanging ring 5 of a main hanger is hung into a main hook of a crown block, then 3 hook heads 8 of the main hanger are respectively hung into hanging holes 2 of the slag supplement hopper, the main hook of the crown block is lifted, the slag supplement hopper loaded with the pig iron blocks is hung and conveyed to a converter operation platform, the main hook of the crown block is descended, the slag supplement hopper is fallen onto a front operation platform, then the hook head 8 hung on the hanging hole at the center of a station plate at the rear side of the slag supplement hopper is unloaded, a hanging ring 9 of an auxiliary hanger is hung into an auxiliary hook of the crown block, then a hook head 12 of the auxiliary hanger is hung into a hanging lug 3 of the slag supplement hopper, the crown block and the auxiliary hook are lifted and moved simultaneously, the slag supplement hopper loaded with the pig iron blocks is hung and conveyed to a furnace base needing slag supplement, the slag supplement has a slag supplement angle of 65 degrees, and when a slag supplement hopper discharging port is fallen on the inclined plane, when the auxiliary hook of the crown block slowly rises, the converter mouth slowly swings downwards, and under the action of the slowing speed of the lug boss 4 on the inclined plane of the feed opening of the slag supplementing hopper, the pig iron block can be ensured to be tiled to the furnace lining of the whole slag dumping surface. And after the pig iron blocks are completely added, repeatedly shaking the converter upwards and downwards for 15-20 degrees to enable the furnace slag in the converter to completely cover the pig iron blocks, standing the converter for 5-10 min, splashing the slag to protect the converter, and finishing slag supplement operation after the furnace slag in the converter is completely solidified. Adding scrap steel and molten iron into the converter normally, and starting to carry out smelting in a furnace.

In conclusion, the converter slag supplement hopper, the lifting appliance and the use method of the converter slag supplement hopper have the advantages that the lug boss structure is arranged on the inclined surface of the discharging hole of the slag supplement hopper, so that the effect of slowing down the speed of adding the pig iron blocks into the converter is achieved, the pig iron blocks can be paved on the furnace lining of the slag pouring surface of the whole converter, the furnace supplement effect is guaranteed, and meanwhile, the operation efficiency and the safety are greatly improved under the matched use of the slag supplement hopper lifting appliance.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.