CN206538455U - It is a kind of to prevent the device of furnace roller dross in high-strength steel annealing process - Google Patents
It is a kind of to prevent the device of furnace roller dross in high-strength steel annealing process Download PDFInfo
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- CN206538455U CN206538455U CN201720091318.4U CN201720091318U CN206538455U CN 206538455 U CN206538455 U CN 206538455U CN 201720091318 U CN201720091318 U CN 201720091318U CN 206538455 U CN206538455 U CN 206538455U
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- nitrogen hydrogen
- gas pipeline
- humidifying pot
- hydrogen mixeding
- mixeding gas
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Abstract
It is a kind of to prevent the device of furnace roller dross in high-strength steel annealing process, belong to cold rolled continuous annealing equipment technical field, for preventing furnace roller dross during high-strength steel continuous annealing.Its technical scheme is：Water supply line one end connects desalination water pot, the other end of water supply line is connected with humidifying pot, one dry nitrogen hydrogen mixeding gas pipeline is passed through the side of humidifying pot, the opposite side of humidifying pot has the humidification nitrogen hydrogen mixeding gas pipeline of output humidification nitrogen hydrogen mixeding gas, another dry nitrogen hydrogen mixeding gas pipeline is connected with humidification nitrogen hydrogen mixeding gas pipeline, gas pipeline after connection is passed into annealing furnace, liquid level gauge and temperature transmitter are arranged on the outside of humidifying pot, electric induction heater is arranged on the inside of humidifying pot, and dew point analysis instrument is arranged on outside annealing furnace.The utility model is solved in high-strength steel production process, the problem of furnace roller roll surface easily dross occurs in continuous annealing furnace, is eliminated belt steel surface fleck defect, is improved product quality, with significant economic benefit.
Description
Technical field
The utility model, which is related to, a kind of prevents the dress of furnace roller dross during the serial high-strength steel continuous annealing of high Si, Mn element
Put, belong to cold rolled continuous annealing equipment technical field.
Background technology
In cold rolled continuous annealing line production high-strength steel serial containing high Si, Mn element, Si, Mn element in steel are in strip
Mechanical friction, the various oxide particle meltings of belt steel surface, bonding occur in annealing furnace with furnace roller coating for surface enrichment, strip
Furnace roller dross is formed on furnace roller surface.Strip passes through furnace roller at high operating temperatures, and furnace sow, which is pressed against, hinders strip, forms bright spot and lacks
Fall into, product surface quality is difficult to meet user's request.The influence factor and mechanism of production of dross are extremely complex, and relevant high-strength steel connects
The research that furnace roller dross is controlled in continuous annealing process is not reported still to be referred to document.At present, continuous annealing in process of production
Line is produced after serial about 600 tons of the high-strength steel of high Si, Mn element, soaking zone, soaking and the intersegmental furnace roller roller of slow cooling transition in annealing furnace
Face starts dross phenomenon occur, and with the increase of high-strength output of steel, furnace roller furnace sow becomes larger, and fleck defect is aggravated,
Need to shut down blow-on processing furnace roller, about 80 hours used times, if producing high-strength steel after cleaning out again, furnace roller dross goes out again quickly
It is existing, the product quality and organization of production of unit high-strength steel are had a strong impact on, as the problem in puzzlement high-strength steel production.Therefore,
High-strength steel continuous annealing process furnace roller dross how is prevented, belt steel surface fleck defect is eliminated, and then improve high-strength product made from steel matter
Amount and yield are technical staff and producers' urgent problem to be solved.
Utility model content
Technical problem to be solved in the utility model, which is to provide, a kind of prevents furnace roller dross in high-strength steel annealing process
Device, this device can prevent the furnace roller roll surface in continuous annealing production process containing the serial high-strength steel of high Si, Mn element from producing
Dross, eliminates belt steel surface fleck defect, improves high-strength steel product quality and yield, meets customer need, and improves the warp of enterprise
Ji benefit.
Solving the technical scheme of above-mentioned technical problem is：
A kind of to prevent the device of furnace roller dross in high-strength steel annealing process, it includes humidifying pot, water supply line, desalted water
Tank, dry nitrogen hydrogen mixeding gas pipelines, humidification nitrogen hydrogen mixeding gas pipeline, liquid level gauge, electric induction heater, temperature transmitter,
Dew point analysis instrument and PC, water supply line one end connection desalination water pot, the other end of water supply line are connected with humidifying pot, one
The side that nitrogen hydrogen mixeding gas pipeline is passed through humidifying pot is dried, the opposite side of humidifying pot has adding for output humidification nitrogen hydrogen mixeding gas
Wet nitrogen hydrogen mixeding gas pipeline, another dry nitrogen hydrogen mixeding gas pipeline is connected with humidification nitrogen hydrogen mixeding gas pipeline, even
Gas pipeline after connecing is passed into annealing furnace, and liquid level gauge and temperature transmitter are installed in the outside of humidifying pot, electrical induction
Device be arranged on humidifying pot inside, dew point analysis instrument be arranged on annealing furnace outside, liquid level gauge, electric induction heater, temperature transmitter,
Dew point analysis instrument is connected with PC respectively.
It is above-mentioned to prevent that magnetic valve is installed on the device of furnace roller dross in high-strength steel annealing process, the water supply line, do
Dry nitrogen hydrogen mixeding gas pipeline and humidification nitrogen hydrogen mixeding gas pipeline are separately installed with pneumatic operated valve, magnetic valve, pneumatic operated valve respectively with
PC is connected.
It is above-mentioned to prevent from being also equipped with force (forcing) pump on the device of furnace roller dross in high-strength steel annealing process, the humidifying pot, plus
Press pump is arranged on outside humidifying pot, and the inlet channel of force (forcing) pump is connected with the bottom of humidifying pot, the outlet conduit connection of force (forcing) pump
At the top of humidifying pot, the outlet conduit of force (forcing) pump is connected with the shower nozzle in humidifying pot.
The beneficial effects of the utility model are：
It is of the present utility model to prevent the device of furnace roller dross in high-strength steel annealing process, mixed using the nitrogen hydrogen with pressure
Gas takes vapor in annealing furnace to, the soaking zone dew point signal control humidification nitrogen hydrogen mixeding gas pipe of dew point analysis instrument detection
Pneumatic operated valve valve opening in road and dry nitrogen hydrogen mixeding gas pipeline, the humidity and flow of the moist nitrogen hydrogen mixeding gas of control,
Moist nitrogen hydrogen mixeding gas mixing is passed through in stove, and dew point of atmosphere in regulating stove realizes dew point closed-loop control.
The utility model is successfully solved in high-strength steel production process, and dross easily occurs in furnace roller roll surface in continuous annealing furnace
Problem, eliminates belt steel surface fleck defect, and producing high-strength steel product quality using continuous annealing unit after the utility model occupies the country
One stream, fully meets customer demand, and output increased there is stronger guidance to anticipate high-strength steel production practices to producing more than 10,000 tons per month
Justice.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Marked in figure as follows：Humidifying pot 1, water supply line 2, desalination water pot 3, dry nitrogen hydrogen mixeding gas pipeline 4, humidification nitrogen
Hydrogen mixed gas pipeline 5, liquid level gauge 6, electric induction heater 7, temperature transmitter 8, dew point analysis instrument 9, force (forcing) pump 10, magnetic valve
11st, pneumatic operated valve 12, PC 13, annealing furnace 14.
Embodiment
The utility model is by humidifying pot 1, water supply line 2, desalination water pot 3, dry nitrogen hydrogen mixeding gas pipeline 4, humidification nitrogen
Hydrogen mixed gas pipeline 5, liquid level gauge 6, electric induction heater 7, temperature transmitter 8, dew point analysis instrument 9, force (forcing) pump 10, magnetic valve
11st, pneumatic operated valve 12, PC 13 are constituted.
Shown in figure, the one end of water supply line 2 connection desalination water pot 3, the other end of water supply line 2 is connected with humidifying pot 2,
Magnetic valve 11 is installed, magnetic valve 11 is connected with PC 13 on water supply line 2.It will be added by the magnetic valve 11 of supply channel 2
Liquid level gauge 6 is installed in the tank body of wet tank 1 on injection desalted water, the tank body of humidifying pot 1, Liquid level is carried out by liquid level gauge 6.
Shown in figure, electric induction heater 7 is arranged on the inside of humidifying pot 1, temperature transmitter 8 is arranged on humidifying pot 1
Outside, is heated to the desalted water in humidifying pot 1.Electric induction heater 7 and temperature transmitter 8 are connected with PC 13 respectively
Connect, control the heating-up temperature of desalted water.
Shown in figure, drying nitrogen hydrogen mixeding gas pipeline 4 there are two, a dry nitrogen hydrogen mixeding gas pipeline 4 is from bypass
Humidifying pot 1 is bypassed, another dry nitrogen hydrogen mixeding gas pipeline 4 is passed through the side of humidifying pot 1, had in the opposite side of humidifying pot 1
Humidify the humidification nitrogen hydrogen mixeding gas after nitrogen hydrogen mixeding gas pipeline 5, output humidification.Bypass the dry nitrogen hydrogen mixing of humidifying pot 1
Gas pipeline 4 is connected with humidification nitrogen hydrogen mixeding gas pipeline 5, and the gas pipeline after connection is passed into annealing furnace 14, to moving back
Stove 14 injects the humidification nitrogen hydrogen mixeding gas necessarily matched.
Shown in figure, dry nitrogen hydrogen mixeding gas pipeline 4 and humidification nitrogen hydrogen mixeding gas pipeline 5 is separately installed with pneumatic operated valve
12, pneumatic operated valve 12 is connected with PC 13 respectively, passes through input annealing furnace 14 after the aperture control mixing of two pneumatic operated valves 12
The humidity of gas.
Shown in figure, force (forcing) pump 10 is also equipped with humidifying pot 1, and force (forcing) pump 10 is arranged on outside humidifying pot 1, force (forcing) pump 10
Inlet channel is connected with the bottom of humidifying pot 1, and the outlet conduit of force (forcing) pump 10 is connected to the top of humidifying pot 1, force (forcing) pump 10
Outlet conduit be connected with the shower nozzle in humidifying pot 1, shower nozzle sprays water, nitrogen and hydrogen mixture in tank body is mixed into water vapour.
Shown in figure, dew point analysis instrument 9 is arranged on outside annealing furnace 14, and dew point analysis instrument 9 is connected with PC 13.Dew point point
The soaking zone dew point signal that analyzer 9 is detected, control dries nitrogen hydrogen mixeding gas pipeline 4 and humidifies nitrogen hydrogen mixeding gas pipeline 5
The valve opening of two pneumatic operated valves 12, to control the flow that moist nitrogen hydrogen mixeding gas are passed through in the stove of annealing furnace 14, regulation annealing
The furnace atmosphere dew point of stove 14, realizes dew point closed-loop control.
Application method of the present utility model is as follows：
A. desalted water is injected into the tank body of humidifying pot 1 by the magnetic valve 11 of supply channel 2,6 pairs add by liquid level gauge
The liquid level of wet tank 1 is controlled, when liquid level declines, and the opens solenoid valve 11 of PC 13 injection desalted water is compensated, and is realized certainly
The dynamic function that adds water；
B.PC machines 13 open electric induction heater 7 and the desalted water in humidifying pot 1 are heated, and PC 13 is by separated
Open and close electric induction heater 7 and a constant temperature angle value is maintained to the desalination coolant-temperature gage in humidifying pot 1；
C. open force (forcing) pump 10, by the desalted water of the bottom of humidifying pot 1 by force (forcing) pump 10 from the pipeline outside humidifying pot 1 to
It is sprayed onto up to the top of humidifying pot 1, then by the shower nozzle inside humidifying pot 1 in humidifying pot 1, makes the vapor in the chamber of humidifying pot 1
Mixed with nitrogen and hydrogen mixture；
D. nitrogen hydrogen mixeding gas are dried and are passed through the humidification nitrogen hydrogen mixeding gas and another dry nitrogen hydrogen exported after humidifying pot 1
Drying nitrogen hydrogen mixeding gas in mixed gas pipeline 4 are mixed, and nitrogen hydrogen is passed into annealing furnace 14 after mixing, is passed through
Regulation humidification nitrogen hydrogen mixeding gas pipeline 5 and the aperture for drying the pneumatic operated valve 12 in nitrogen hydrogen mixeding gas pipeline 4, to humidification nitrogen hydrogen
Mixed gas and the proportioning of dry nitrogen hydrogen mixeding gas are adjusted and kept, and are passed through the nitrogen hydrogen mixeding gas regulation of annealing furnace 14
Furnace atmosphere dew point；
E. process control method：
Oxygen content in strict control annealing furnace, by airtight test processes annealing furnace leak point, makes Control for Oxygen Content in stove
Within 20ppm；
Each region dew point of annealing furnace is individually controlled, and easy dross region dew point is individually adjusted according to technical study result, is passed through
Flow direction and the valve opening of furnace atmosphere are controlled, control dew point is between -20 ~ -30 DEG C, the other each section of dew of annealing furnace
Point control is at≤- 40 DEG C；
Rationally work out a production plan, high-strength steel and general material contract are concentrated respectively, are rationally grouped, high-strength steel is per batch scheduling
At 1000 tons or so, scheduling high-strength steel is then further continued for after separated in time.This method is put into when producing high-strength steel, is removed
Furnace roller dross, at the end of high-strength steel is produced, closes the present apparatus.
In the implementation process of the above method, it is 200mbar nitrogen hydrogen mixeding gas to dry in nitrogen hydrogen mixeding gas pipeline 4,
Desalted water in humidifying pot 1 is >=2.5bar desalted waters, 5bar compressed air.
When producing high-strength steel, desalted water Liquid level in the tank body of humidifying pot 1 in 180-250mm, using electric induction plus
Hot device 7 is heated and maintained at a stationary temperature value in the range of 45 DEG C ~ 60 DEG C to desalted water.
When producing high-strength steel, the furnace pressure of annealing furnace is improved to 2.0 ~ 2.5mbar, and control rapid cooling section blower fan aperture is ≤95%
More excellent scope, it is to avoid collection chamber produces oxygen content≤20ppm in negative pressure, control stove.
When producing high-strength steel, each process section tension force of different size strip is accurately controlled, it is ensured that smooth, stable transition, fortune
Scanning frequency degree is controlled in≤1m/min with furnace roller speed difference, it is to avoid the skidding between strip and furnace roller.
Claims (3)
1. a kind of prevent the device of furnace roller dross in high-strength steel annealing process, it is characterised in that：It includes humidifying pot（1）, supply water
Pipeline（2）, desalination water pot（3）, dry nitrogen hydrogen mixeding gas pipelines（4）, humidification nitrogen hydrogen mixeding gas pipeline（5）, liquid level gauge
（6）, electric induction heater（7）, temperature transmitter（8）, dew point analysis instrument（9）And PC（13）, water supply line（2）One end is connected
Desalination water pot（3）, water supply line（2）The other end and humidifying pot（1）It is connected, a dry nitrogen hydrogen mixeding gas pipeline（4）
It is passed through humidifying pot（1）Side, humidifying pot（1）Opposite side have output humidification nitrogen hydrogen mixeding gas humidification nitrogen hydrogen mixeding gas
Pipeline（5）, another dry nitrogen hydrogen mixeding gas pipeline（4）With humidification nitrogen hydrogen mixeding gas pipeline（5）It is connected, after connection
Gas pipeline is passed into annealing furnace（14）In, liquid level gauge（6）And temperature transmitter（8）Installed in humidifying pot（1）Outside, inductance
Answer heater（7）Installed in humidifying pot（1）Inside, dew point analysis instrument（9）Installed in annealing furnace（14）Outside, liquid level gauge（6）, electricity
Sensing heater（7）, temperature transmitter（8）, dew point analysis instrument（9）Respectively with PC（13）It is connected.
2. according to claim 1 prevent the device of furnace roller dross in high-strength steel annealing process, it is characterised in that：It is described to supply
Waterpipe（2）On magnetic valve is installed（11）, dry nitrogen hydrogen mixeding gas pipeline（4）With humidification nitrogen hydrogen mixeding gas pipeline（5）
It is separately installed with pneumatic operated valve（12）, magnetic valve（11）, pneumatic operated valve（12）Respectively with PC（13）It is connected.
3. according to claim 2 prevent the device of furnace roller dross in high-strength steel annealing process, it is characterised in that：It is described to add
Wet tank（1）On be also equipped with force (forcing) pump（10）, force (forcing) pump（10）Installed in humidifying pot（1）Outside, force (forcing) pump（10）Water inlet pipe
Road and humidifying pot（1）Bottom be connected, force (forcing) pump（10）Outlet conduit be connected to humidifying pot（1）Top, force (forcing) pump
（10）Outlet conduit and humidifying pot（1）Interior shower nozzle is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720091318.4U CN206538455U (en) | 2017-01-24 | 2017-01-24 | It is a kind of to prevent the device of furnace roller dross in high-strength steel annealing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720091318.4U CN206538455U (en) | 2017-01-24 | 2017-01-24 | It is a kind of to prevent the device of furnace roller dross in high-strength steel annealing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206538455U true CN206538455U (en) | 2017-10-03 |
Family
ID=59939533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720091318.4U Withdrawn - After Issue CN206538455U (en) | 2017-01-24 | 2017-01-24 | It is a kind of to prevent the device of furnace roller dross in high-strength steel annealing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206538455U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106676251A (en) * | 2017-01-24 | 2017-05-17 | 唐山钢铁集团有限责任公司 | Device and method for preventing furnace roller nodulation in high-strength steel annealing process |
-
2017
- 2017-01-24 CN CN201720091318.4U patent/CN206538455U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106676251A (en) * | 2017-01-24 | 2017-05-17 | 唐山钢铁集团有限责任公司 | Device and method for preventing furnace roller nodulation in high-strength steel annealing process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171003 Effective date of abandoning: 20180619 |