CN203887226U

CN203887226U - Slag blowing device with adjustable pressure and abduction angle

Info

Publication number: CN203887226U
Application number: CN201420211272.1U
Authority: CN
Inventors: 张立峰; 张海杰
Original assignee: University of Science and Technology Beijing USTB
Current assignee: University of Science and Technology Beijing USTB
Priority date: 2014-04-28
Filing date: 2014-04-28
Publication date: 2014-10-22
Anticipated expiration: 2024-04-28

Abstract

The utility model discloses a slag blowing device with adjustable pressure and abduction angle. The system is composed of a pressure pump 1, a gas transmission pipeline 2, a ventilation valve 3, a bendable tube 4, a mechanical control arm 5 and a spray head 6, wherein the pressure pump 1 is used for pumping out a high-pressure and high-temperature gas, and the flowing or closing of the gas in the gas transmission pipeline 2 is realized under the control of the ventilation valve 3; the bendable tube 4 can be controlled by the mechanical control arm 5 so as to adjust the working position or the standby position of the spray head; the quantity and the positions of spray nozzles 7 are set according to the opening diameters of a ladle and the like, thus the gas flow is capable of thoroughly blowing slag in one time; during a slag blowing process, the ladle is reversely rocked to the liquid level of molten iron to be tangential with a ladle opening at first, the positions of the spray heads are adjusted to enable the gas flow to form a 5-degree included angle with the liquid level of molten slag, and slag blowing working is started; the angle of the ladle is adjusted with the movement of the liquid level of the molten slag until the slag is completely blown away; the slag blowing technology is capable of reducing slagging-off time, increasing efficiency, and reducing temperature drop, thus ensuring the purity of the molten iron, avoiding the corrosion of the traditional slagging-off plate and pollution to the molten iron, and saving cost.

Description

A kind of pressure, the adjustable slag device that blows in exhibition angle

Technical field

The utility model relates to molten iron pretreatment and ladle is smelted the technical field of skimming, and has specifically provided a kind of pressure, the adjustable slag device that blows in exhibition angle.

Background technology

The quality of molten iron drossing technique has certainly directly affected the degree of purity of molten iron, thereby has affected the quality of steel.In smelting iron and steel, original adoption be manually to skim, the technology of skimming has afterwards been gone on mechanical automation gradually, has improved work quality and efficiency.At present, the Europe telescopic boom hydraulic slaggers that adopt more, Japan adopts carriage walking formula hydraulic slagger to skim.In China, apply comparatively generally carriage walking formula hydraulic slagger.

All Cinder Machine operation principles in use are all consistent at present: slag removal device is deep into below molten iron certain liquid, controls the arm of skimming carry out straight line or reciprocating motion by mechanical device, slag is removed.Although done very large improvement in the design of slag removal device, the effect of skimming also obtains certain raising, but still there is very large deficiency.

The patent No. is that the Chinese patent " a kind of molten iron drossing plate " of CN202779773U discloses a kind of slag removal device structural design, slag removal device is divided into vertical operation face and the working face two parts that lean forward, and designs molten iron spout hole.The patent No. is that the Chinese patent " a kind of slagging plate for iron granulated slag " of CN202054847U discloses another kind of slag removal device structural design mode, slag removal device is positive, the back side is designed to spherical, improve slag removal device solid-holding amount, reduce the capacity of returns that in the process of skimming, plate both sides and bottom are taken off in slag edge.The design of these two kinds of slag removal devices, has improved the operating efficiency of skimming to a certain extent, has shortened the operating time of skimming, and slag is refluxed and has certain effect.But, first due to slag removal device shape, can not accomplish that single removes, extended slag-removing time; Secondly, the design of the shape of slag removal device, easily causes the limit portion of slag to reflux, and skims not thorough; Again, repeatedly, in use procedure, easily cause the corrosion of slag removal device, change time and again, not only increased capital invested, also can cause pollution to a certain degree to molten iron simultaneously.

Utility model content

The purpose of this utility model is to overcome that the slag-removing time that causes of repeatedly back and forth skimming is long, efficiency is low, temperature drop is high and leave the dead angle of skimming, and slag removal device corrodes the technical deficiencies such as serious, the a kind of of invention blows slag technology by high temperature, high pressure draught, and equipment operation has once been skimmed, and greatly shortened slag-removing time, reduce to the full extent temperature drop, meanwhile, the effect of skimming is thorough, without the corrode of slag removal device and the relevant pollution that molten iron is brought.

To achieve these goals, the utility model has adopted following technical scheme:

Pressure, the exhibition angle adjustable slag device that blows, is characterized in that: whole system by compression pump, gas pipeline, breather valve, can bend pipe, mechanical control arm, shower nozzle form.After compression pump, connect gas pipeline, be provided with breather valve on gas pipeline, gas pipeline end connects can bend pipe, can after bend pipe, connect shower nozzle, shower nozzle and can between bend pipe, mechanical control arm be installed, is provided with nozzle on shower nozzle, nozzle is distributed on an arcwall face, makes air-flow can form certain exhibition angle.

Compression pump can provide enough high-temperature gases of large pressure, guarantees that stream pressure can blow molten iron surface slag crust, reduces temperature drop and amount of oxidation simultaneously.

According to the arrival time startup of ladle and pass gas check valve, realize and blow the carrying out of slag and stop.

Gas pipeline will have enough intensity, can guarantee that it is not damaging under high pressure-temperature for a long time.

The airtight bourdon tube of metal bendable is installed on gas pipeline, under the controlling of mechanical control arm, can be realized the motion of any direction of shower nozzle, the performance nozzle of maximum efficiency blow slag effect.

This blows slag device can be according to the ladle of different diameters, changes nozzle quantity and position, realizes the change at exhibition angle, and what adapt to different ladle blows slag operation;

It is circular-arc that sprinkler design becomes, and is designed with five nozzles on arc shower nozzle, and five nozzles spray fan-shaped high temperature, high pressure draught, can be by increasing and reduce the quantity of nozzle and the size that distribution realizes fan-shaped arc.High pressure draught becomes 5 ° of angles to start to blow slag operation with slag liquid level.The mobile shower nozzle that advances with slag liquid level shakes inclusion simultaneously.Finally slag is all blown down, shower nozzle returns to armed bit.

The utility model blows slag device by original slag removal device being transformed into one group of high-temperature high-pressure air flow, is made into once to scan blow slag by the original repeatedly reciprocating motion mechanism of skimming, of far-reaching significance.Its advantage is:

(1) slag-removing time shortens, and efficiency significantly improves, and reduces the temperature drop causing in the process of skimming;

(2) skim thoroughly, improve the degree of purity of molten iron, be of value to the smelting of molten iron;

(3) removed from because slag removal device contacts with molten iron and caused the corrode of slag removal device and the pollution that molten iron is brought;

(4) only need provide a high-pressure and high-temperature device, just can realize purchasing of this device, under identical condition of life-span, reduce input cost under arms, improve operating efficiency.

Accompanying drawing explanation

Fig. 1 is device schematic diagram.

Fig. 2 is nozzle distribution map.

Fig. 3 is for blowing slag work flow schematic diagram: Fig. 3 a represents is that reverse shaking ladle to the position of skimming starts to blow that slag, Fig. 3 b represent is that what to shake inclusion and to advance that position, Fig. 3 c of shower nozzle represent is that slag liquid is blown down in shaking ladle to the position of skimming.

In figure: 1-compression pump; 2-high pressure gas pipeline road; 3-breather valve; 4-can bend pipe; 5-machinery control arm; 6-shower nozzle; 7-nozzle.

The specific embodiment

Pressure, the exhibition angle adjustable slag technology of blowing, it is characterized in that this system by compression pump 1, gas pipeline 2, breather valve 3, can bend pipe 4, mechanical control arm 5, shower nozzle 6 form; After compression pump 1, connect gas pipeline 2, on gas pipeline 2, be provided with breather valve 3, gas pipeline end connects can bend pipe 4, can the rear connection shower nozzle 6 of bend pipe 4, shower nozzle 6 and can between bend pipe 4, mechanical control arm 5 be installed, on shower nozzle 6, be provided with nozzle 7, nozzle is distributed on same arcwall face, makes air-flow can form certain exhibition angle.

Hot-metal bottle arrives after station, and oppositely shaking ladle is tangent to slag liquid level and inclusion, and the air-flow of shower nozzle ejection becomes the angle of 5 ° of left and right to start to blow slag operation with slag liquid level, for guarantee air-flow enough blow slag power, with the movement of slag liquid level, push ahead the position of shower nozzle, rotate inclusion simultaneously.Along with the lasting propelling of shower nozzle, slag blanket is eliminated totally.Close breather valve, shower nozzle is regained standby position with appendix, and ladle goes back to vertical position.Blow the slag end of job.

Whole skimming in process, quick, efficient, contactless, suboxides, low temperature drop, can accomplish well without refluxing, without remaining slag, noenergy lossy, without slag removal device corrode etc.

Claims

1. pressure, the exhibition angle adjustable slag device that blows, it is characterized in that by compression pump (1), gas pipeline (2), breather valve (3), can bend pipe (4), mechanical control arm (5), shower nozzle (6) form; After compression pump (1), connect gas pipeline (2), on gas pipeline (2), be provided with breather valve (3), gas pipeline end connects can bend pipe (4), can after bend pipe (4), connect shower nozzle (6), shower nozzle (6) and can between bend pipe (4), mechanical control arm (5) be installed, on shower nozzle (6), be provided with nozzle (7), nozzle is distributed on same arcwall face.

A kind of pressure as claimed in claim 1, can open up angle and adjust and to blow slag device, it is characterized in that shower nozzle (6) is designed to circular-arc, on arc shower nozzle, be designed with five nozzles (7), five nozzles spray fan-shaped high temperature, high pressure draught, and high pressure draught becomes 5 ° of angles with slag liquid level; The mobile shower nozzle that advances with slag liquid level shakes inclusion simultaneously, finally slag is all blown down, and shower nozzle returns to armed bit.