CN205893353U - Pneumatic control device in orientation silicon steel high temperature bell type furnace stove - Google Patents
Pneumatic control device in orientation silicon steel high temperature bell type furnace stove Download PDFInfo
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- CN205893353U CN205893353U CN201620720463.XU CN201620720463U CN205893353U CN 205893353 U CN205893353 U CN 205893353U CN 201620720463 U CN201620720463 U CN 201620720463U CN 205893353 U CN205893353 U CN 205893353U
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- high temperature
- silicon steel
- type furnace
- control device
- orientation silicon
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Abstract
The utility model relates to an orientation silicon steel high temperature annealing device especially designs a pneumatic control device in orientation silicon steel high temperature bell type furnace stove, and the pneumatic control device has the blast pipe that is located the central intake pipe of bell -type stove base and is located the base outside in this stove, is equipped with manual spherical valve on the blast pipe, the periodic bypass equipment who adjusts can be carried out to other being equipped with of manual spherical valve on the blast pipe, and the bypass equipment both ends are linked together with the blast pipe, and manual spherical valve is located between two junctions of bypass equipment and blast pipe. The utility model discloses a bypass equipment that the increase can periodicly be adjusted can make the atmospheric pressure in the bell -type furnace change sinusoidal formula cyclic fluctuation into by immobilizing, make stove internal gas pressure P0 poor with coil of strip internal gas pressure P1 generate pressure, has promoted the mobile ability of gas in the coil of strip clearance to realize that low heat preservation reaches dew point process control point fast, shorten low holding time, improve production efficiency, reduce the emergence that the steel band surface oxidation blackout phenomenon that leads to the fact is not in time got rid of to moisture simultaneously.
Description
Technical field
This utility model is related to a kind of orientation silicon steel high-temp. annealing device, especially designs a kind of orientation silicon steel high temperature bell-type furnace
Stove internal gas pressure control device and method.
Background technology
Needs in orientation silicon steel production process carry out high annealing in high temperature bell-type furnace, and annealing temperature is up to
1200 DEG C about, and furnace interior needs the different phase in heating to be passed through different gases as protective atmosphere, on the one hand goes
Except steel strip surface coats the water of crystallization in magnesium oxide, on the other hand form magnesium silicate bottom.
Existing high temperature bell-type furnace includes body of heater and the air intake installation being located on base and exhaust apparatus, as shown in Figure 1.Using
When this high temperature bell-type furnace carries out high annealing to orientation silicon steel, furnace gas constant for 150pa, pressure p 1=in strip steel gap
150pa, the gas pressure in stove is p0=150pa, as shown in Figure 2.When gas flows in stove, furnace inner gas pressure p0 etc.
Pressure p1 in coil of strip gap, is unfavorable for the flowing of gas in coil of strip, and the gas in coil of strip cannot flow in stove, the gas in stove
Cannot be introduced in band volume, pressure equal gas stand facing each other, and are unfavorable for the discharge of moisture in steel strip surface magnesium oxide, for making dew point in stove
Reach intensification to require it is necessary to carry out minimum living temperature for a long time to discharge moisture, thus reducing production efficiency.If on the other hand water
Point do not discharge and thoroughly just to carry out continuing intensification causing steel strip surface oxidizing blackening, have a strong impact on board surface quality.
Utility model content
The purpose of this utility model is the defect overcoming prior art to exist, and provides one kind can increase substantially production efficiency
Orientation silicon steel high temperature bell-type furnace stove internal gas pressure control device and method with board surface quality.
The technical scheme realizing this utility model purpose is: a kind of orientation silicon steel high temperature bell-type furnace stove internal gas pressure controls dress
Put, there is the air inlet pipe positioned at bell-type furnace base center and the exhaustor being located at chassis outer side, described exhaustor is provided with manually
Globe valve；It is provided with the by-pass collar that can carry out periodic adjustment, described by-pass collar by manual globe valve on described exhaustor
Two ends are connected with exhaustor, and described manual globe valve is located between by-pass collar and exhaustor two junction.
Technique scheme, described by-pass collar includes one " c " type pipeline and the periodic electromagnetism being located on " c " type pipeline
Valve and bypass globe valve, described bypass globe valve and periodic electromagnetism valve are in series.
Technique scheme, described by-pass collar also includes the time relay, the described time relay and periodic electromagnetism
Valve is connected, and the break-make of controlling cycle electromagnetic valve.
Technique scheme, the described time relay is self-powered.
After technique scheme, this utility model has a following positive effect:
(1) this utility model passes through to increase the by-pass collar of periodic adjustment can make air pressure in bell furnace by fixing not
Become and be changed to sinusoid cyclic fluctuation, make stove internal gas pressure p0 and coil of strip internal gas pressure p1 produce pressure differential, promote gas in coil of strip
Fluid ability in gap, thus realizing minimum living temperature to be rapidly achieved dew point technology controlling and process point, shortening low temperature retention time, improving and producing
Efficiency, reduces the generation that moisture does not exclude the steel strip surface oxidizing blackening phenomenon causing in time simultaneously；
(2) the periodic electromagnetism valve in this utility model by-pass collar can realize week according to the setting cycle of the time relay
Phase property break-make, thus realize the periodic adjustment of pressure；Bypass globe valve is individually set up to can achieve the independent control of by-pass collar；
Can be turned off after minimum living temperature terminates, using original manual globe valve, air pressure is controlled；
(3) this utility model only need to be set up bypass device on original outlet pipe and can reach and periodically control in stove
The purpose of air pressure, improvement cost is low, and effect is significant can be in large-scale application.
Brief description
In order that content of the present utility model is easier to be clearly understood, below according to specific embodiment and with reference to attached
Figure, is described in further detail to this utility model, wherein
Fig. 1 is traditional approach silicon steel high temperature bell-type furnace stove internal gas pressure control device schematic diagram；
Fig. 2 is this utility model orientation silicon steel high temperature bell-type furnace stove internal gas pressure control device schematic diagram；
Fig. 3 is this utility model by-pass collar structural representation；
Fig. 4 changes gas flow figure for this utility model furnace pressure；
In figure 1, base；2nd, air inlet pipe；3rd, exhaustor；4th, manual globe valve；5th, by-pass collar；51st, " c " type pipeline；
52nd, periodic electromagnetism valve；53rd, bypass globe valve；54th, the time relay.
Specific embodiment
(embodiment 1)
See Fig. 1～3, this utility model orientation silicon steel high temperature bell-type furnace stove internal gas pressure control device, have positioned at bell furnace
The air inlet pipe 2 at base 1 center and the exhaustor 3 being located at base 1 outside, described exhaustor 3 is provided with manual globe valve 4；Described
It is provided with the by-pass collar 5 that can carry out periodic adjustment, described by-pass collar 5 two ends and row by manual globe valve 4 on exhaustor 3
Trachea 3 is connected, and described manual globe valve 4 is located between by-pass collar 5 and 3 liang of junctions of exhaustor.By-pass collar 5 includes one
" c " type pipeline 51 and the periodic electromagnetism valve 52 being located on " c " type pipeline 51 and bypass globe valve 53, described bypass globe valve 53
It is in series with periodic electromagnetism valve 52.Described by-pass collar 5 also includes the time relay 54, the described time relay 54 and cycle
Property electromagnetic valve 52 is connected, and the break-make of controlling cycle electromagnetic valve 52.The time relay 54 is self-powered.
This utility model orientation silicon steel high temperature bell-type furnace stove internal gas pressure control method, comprises the following steps:
(1) close the bypass globe valve 53 in by-pass collar 5, normal shove charge simultaneously carries out leakage check；
(2) set furnace pressure as p0, minimum pressure p0min, maximum pressure p0max, adjust manual globe valve 4, control in stove
Pressure p0=p0max+p0min/2；
(3) 54 cycle of setting time relay t；The time relay 54 is carried out to periodic electromagnetism valve 52 according to setting cycle
Break-make controls；
(4) starting time relay 54, and adjust bypass globe valve 53 switch, periodic electromagnetism valve 52 adhesive by-pass line
When opening, by p0It is adjusted to the minimum pressure p of technological requirement0min；Conversely, closing when periodic electromagnetism valve 52 disconnects by-pass line,
Make p0Reach the maximum pressure p of technological requirement0max, make furnace pressure be in sinusoidal cycles fluctuation, maximum pressure p0maxAnd minimum pressure
p0minTime difference is the time relay 54 controlling cycle t；54 cycle of time relay t may be configured as 10min, 30min or
60min, maximum pressure p in stove0maxCan be 300～400pa, minimum pressure p in stove0minCan be 100～200pa.
(5) after minimum living temperature terminates, whether detection dew point reaches technological requirement (dew point≤0 DEG C), reaches technological requirement and closes side
Logical globe valve 53 switchs, shut-in time relay 54；If 0 DEG C of low temperature retention time of prolongation of dew point ＞.
Operation principle of the present utility model is: see Fig. 4, when stove internal gas pressure p0 reduces, air pressure p1 ＞ p0 in coil of strip, makes
Pressure reduction is become to form air-flow, the gas in strip steel and moisture are discharged in stove；When stove stove internal gas pressure p0 increases, the air pressure p1 in coil of strip
＜ p0, causes pressure reduction to form air-flow, the dry gas in stove flow in strip steel.This utility model stove internal gas pressure is changed to periodic wave
After dynamic, the gas in coil of strip can be forced to eject, can quickly reduce the dew point of furnace atmosphere, and reach technological requirement
In the case of shorten minimum living temperature time, thus shortening the whole annealing cycle with improve production efficiency, also can reduce because moisture long-term
It is trapped in the oxidizing blackening phenomenon brought in coil of strip, thus improving board surface quality.
Particular embodiments described above, has carried out entering one to the purpose of this utility model, technical scheme and beneficial effect
Step describes in detail, be should be understood that and the foregoing is only specific embodiment of the utility model, is not limited to this
Utility model, all of the present utility model spirit and principle within, any modification, equivalent substitution and improvement done etc., all should wrap
It is contained within protection domain of the present utility model.
Claims (4)
1. a kind of orientation silicon steel high temperature bell-type furnace stove internal gas pressure control device, has the air inlet positioned at bell-type furnace base (1) center
Pipe (2) and the exhaustor (3) outside base (1), described exhaustor (3) is provided with manual globe valve (4)；Its feature exists
In: it is provided with the by-pass collar (5) that can carry out periodic adjustment, described bypass by the manual globe valve (4) on described exhaustor (3)
Device (5) two ends are connected with exhaustor (3), and described manual globe valve (4) is located at by-pass collar (5) with exhaustor (3) two even
Between connecing.
2. orientation silicon steel high temperature bell-type furnace stove internal gas pressure control device according to claim 1 it is characterised in that: described side
Exchange device (5) includes one " c " type pipeline (51) and the periodic electromagnetism valve (52) being located on " c " type pipeline (51) and bypass is spherical
Valve (53), described bypass globe valve (53) is in series with periodic electromagnetism valve (52).
3. orientation silicon steel high temperature bell-type furnace stove internal gas pressure control device according to claim 2 it is characterised in that: described side
Exchange device (5) also includes the time relay (54), and the described time relay (54) and periodic electromagnetism valve (52) are connected, and control
The break-make of periodic electromagnetism valve (52) processed.
4. orientation silicon steel high temperature bell-type furnace stove internal gas pressure control device according to claim 3 it is characterised in that: when described
Between relay (54) self-powered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620720463.XU CN205893353U (en) | 2016-07-09 | 2016-07-09 | Pneumatic control device in orientation silicon steel high temperature bell type furnace stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620720463.XU CN205893353U (en) | 2016-07-09 | 2016-07-09 | Pneumatic control device in orientation silicon steel high temperature bell type furnace stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205893353U true CN205893353U (en) | 2017-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620720463.XU Active CN205893353U (en) | 2016-07-09 | 2016-07-09 | Pneumatic control device in orientation silicon steel high temperature bell type furnace stove |
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| CN (1) | CN205893353U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106011452A (en) * | 2016-07-09 | 2016-10-12 | 新万鑫（福建）精密薄板有限公司 | In-furnace air pressure control device and method of oriented silicon steel high-temperature bell type furnace |
-
2016
- 2016-07-09 CN CN201620720463.XU patent/CN205893353U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106011452A (en) * | 2016-07-09 | 2016-10-12 | 新万鑫（福建）精密薄板有限公司 | In-furnace air pressure control device and method of oriented silicon steel high-temperature bell type furnace |
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| GR01 | Patent grant |