CN103558863B - A kind of sodium hydrosulfite four-in-one kettle blow-out disc secure side is to localization method - Google Patents
A kind of sodium hydrosulfite four-in-one kettle blow-out disc secure side is to localization method Download PDFInfo
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- CN103558863B CN103558863B CN201310504084.8A CN201310504084A CN103558863B CN 103558863 B CN103558863 B CN 103558863B CN 201310504084 A CN201310504084 A CN 201310504084A CN 103558863 B CN103558863 B CN 103558863B
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Abstract
The invention discloses a kind of sodium hydrosulfite four-in-one kettle blow-out disc secure side to localization method, in four-in-one kettle, choose certain correct position a metal target is installed, metal target is followed kettle and is rotated, four-in-one kettle framework strutbeam installs inductance approach switch, inductance approach switch is by oscillator, on-off circuit and safety barrier output loop are formed, when metal target is close to alternating magnetic field and when reaching distance of reaction, eddy current is produced in metal target, thus cause the oscillatory extinction of oscillator so that failure of oscillation, the change of oscillator vibrates is by the process of safety barrier output loop and convert switching signal to, switching signal exports the auxiliary reclay triggering four-in-one kettle through on-off circuit, four-in-one kettle is stopped operating.The present invention can operate in place of safety in productive labor process, improves working condition, overcomes unsafe factor.Under there are abnormal conditions in technique, blow-out disc outlet towards secure side to, effectively can prevent the generation of casualty accident.
Description
Technical field
The present invention relates to sodium hydrosulfite four-in-one kettle blow-out disc localization method field, be specially a kind of sodium hydrosulfite four-in-one kettle blow-out disc secure side to localization method.
Background technology
Sodium hydrosulfite production run is briefly first synthesized in synthesis reactor by various starting material, carries out washing, dry, mixing in the pressure vessel four-in-one kettle then the material press-in after synthesis rotated, and produces qualified sodium hydrosulfite product.
Sodium hydrosulfite has meets water, meets acid, meets the highly basic character of acutely decomposing, and produces High Temperature High Pressure and even explodes.According to " chemical enterprise Security Administration " the 94th article regulation, there are unexpected superpressure or the possible production equipment of moment decomposition explosion or bunkerage, explosion plate (blow-out disc) should be housed, lead the outlet of quick-fried cylinder should towards secure side to, and take the measure preventing subsequent explosion, fire as required.
Four-in-one kettle is just furnished with safety feature blow-out disc.According to sodium hydrosulfite manufacturing technique requirent, material must full and uniform drying, and four-in-one kettle kettle will by motor in whole production run--and speed reducer device drives and constantly rotates, and this singularity makes the outlet of blow-out disc towards having uncertainty.Once run into material decomposition in dry run, when producing the emergency condition of over-temp and over-pressure, technique not yet there is appropriate way allow decomposition reaction stop, can only adopt and manually stop at the scene, utilize blow-out disc explosion to carry out pressure release.Docking process is as follows: first to stop main frame by main frame stop button, observe again kettle inertial rotation run, when blow-out disc towards secure side to time, press band-type brake motor stop button, band-type brake hydraulic mechanism resets and holds motor tightly---and the shaft coupling of reductor, four-in-one kettle is stopped.Whole process time is long, and uncertain factor is many, greatly dangerous.
Summary of the invention
The object of this invention is to provide a kind of sodium hydrosulfite four-in-one kettle blow-out disc secure side to localization method, the outlet of the four-in-one kettle blow-out disc in rotating during to solve emergency condition is towards the problem of the uncertainty had, insecurity.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of sodium hydrosulfite four-in-one kettle blow-out disc secure side is to localization method, it is characterized in that: in four-in-one kettle, choose certain correct position a metal target is installed, metal target is followed kettle and is rotated, four-in-one kettle framework strutbeam installs inductance approach switch, require metal target and inductance approach switch close to time can reach distance of reaction, described inductance approach switch is by oscillator, on-off circuit and safety barrier output loop are formed, oscillator produces an alternating magnetic field, when metal target is close to alternating magnetic field and when reaching distance of reaction, eddy current is produced in metal target, thus cause the oscillatory extinction of oscillator so that failure of oscillation, the change of oscillator vibrates is by the process of safety barrier output loop and convert switching signal to, switching signal exports the auxiliary reclay triggering four-in-one kettle through on-off circuit, make the band-type brake motor power-off of four-in-one kettle, the band-type brake hydraulic mechanism of four-in-one kettle resets and is held tightly by main frame-speed reducer coupling, four-in-one kettle stops operating.
Described a kind of sodium hydrosulfite four-in-one kettle blow-out disc secure side is to localization method, it is characterized in that: because the elasticity of every platform four-in-one kettle band-type brake is different, metal target installation site in four-in-one kettle must be tested by platform still, after ensureing that kettle comes to a complete stop, blow-out disc outlet towards secure side to.
Described a kind of sodium hydrosulfite four-in-one kettle blow-out disc secure side is to localization method, it is characterized in that: often revolve for four-in-one kettle when preventing from normally producing and turn around, metal target often near proximity switch once, safety barrier output loop is with regard to action phenomenon once, the normally opened contact of the scram button of four-in-one kettle is connected on safety barrier output loop, ensure that safety barrier output loop is off-state when normal production, four-in-one kettle runs well.
Described a kind of sodium hydrosulfite four-in-one kettle blow-out disc secure side is to localization method, it is characterized in that: running into overtemperature, during superpressure emergency condition, operating personnel directly press the scram button of four-in-one kettle, the Main Engine Cut-Off of four-in-one kettle, acoustic-optic alarm is reported to the police and is evacuated field staff, connect the safety barrier output loop of inductance approach switch simultaneously, when metal target is close to alternating magnetic field and when reaching distance of reaction, it is electric that safety barrier output loop makes the auxiliary reclay of four-in-one kettle obtain by on-off circuit output switching signal, control auxiliary reclay normally closed contact to disconnect, make the power-off of band-type brake motor, band-type brake hydraulic mechanism resets, blow-out disc outlet towards secure side to time four-in-one kettle kettle stop.
Blow-out disc orientation of the present invention towards accurate, safety, inductance approach switch dependable performance, not affected by environment.Can operate in place of safety in productive labor process, improve working condition, overcome unsafe factor.Under there are abnormal conditions in technique, blow-out disc outlet towards secure side to, effectively can prevent the generation of casualty accident.
Accompanying drawing explanation
Fig. 1 is the inventive method theory diagram.
Embodiment
As shown in Figure 1.A kind of sodium hydrosulfite four-in-one kettle blow-out disc secure side is to localization method, in four-in-one kettle, choose certain correct position a metal target is installed, metal target is followed kettle and is rotated, four-in-one kettle framework strutbeam installs inductance approach switch, require metal target and inductance approach switch close to time can reach distance of reaction, inductance approach switch is by oscillator, on-off circuit and safety barrier output loop are formed, oscillator produces an alternating magnetic field, when metal target is close to alternating magnetic field and when reaching distance of reaction, eddy current is produced in metal target, thus cause the oscillatory extinction of oscillator so that failure of oscillation, the change of oscillator vibrates is by the process of safety barrier output loop and convert switching signal to, switching signal exports the auxiliary reclay triggering four-in-one kettle through on-off circuit, make the band-type brake motor power-off of four-in-one kettle, the band-type brake hydraulic mechanism of four-in-one kettle resets and is held tightly by main frame-speed reducer coupling, four-in-one kettle stops operating.
The installation site of metal target is very crucial, because the elasticity of every platform four-in-one kettle band-type brake is different, so the installation site of every platform still metal target is not quite similar, must test by platform still.Also to consider that the different inertia of the different drying period of material produces the factors such as different displacements, rationally determine the installation site of metal target, after ensureing that kettle comes to a complete stop, blow-out disc outlet towards secure side to.
Four-in-one kettle field control, measurement mechanism are moved to operation room (place of safety) control desk, on table top except main frame, the startup stop button of band-type brake motor, reometer are installed, also emergency stop push button is housed.Often revolve for four-in-one kettle when preventing from normally producing and turn around, metal target often near proximity switch once, safety barrier output loop is with regard to action phenomenon once, the normally opened contact of the scram button of four-in-one kettle is connected on safety barrier output loop, ensure that safety barrier output loop is off-state when normal production, four-in-one kettle runs well.
Running into overtemperature, during superpressure emergency condition, operating personnel directly press the scram button of four-in-one kettle, the Main Engine Cut-Off of four-in-one kettle, acoustic-optic alarm is reported to the police and is evacuated field staff, connect the safety barrier output loop of inductance approach switch simultaneously, when metal target is close to alternating magnetic field and when reaching distance of reaction, it is electric that safety barrier output loop makes the auxiliary reclay of four-in-one kettle obtain by on-off circuit output switching signal, control auxiliary reclay normally closed contact to disconnect, make the power-off of band-type brake motor, band-type brake hydraulic mechanism resets, blow-out disc outlet towards secure side to time four-in-one kettle kettle stop.
Automatic emergency stop measure: when temperature in the kettle, pressure reach instrument measure and control device alarming value, measure and control device output loop is often opened passive bus for a pair and is closed, and the present invention is in parallel with scram button normally opened contact to passive bus by this.Even if operating personnel do not press scram button in time, four-in-one kettle still can be stopped by said procedure.
For ensureing that this device performance is good, to carry out at set intervals testing once.
Claims (2)
1. a sodium hydrosulfite four-in-one kettle blow-out disc secure side is to localization method, it is characterized in that: in four-in-one kettle, choose certain correct position a metal target is installed, metal target is followed kettle and is rotated, four-in-one kettle framework strutbeam installs inductance approach switch, require metal target and inductance approach switch close to time can reach distance of reaction, described inductance approach switch is by oscillator, on-off circuit and safety barrier output loop are formed, oscillator produces an alternating magnetic field, when metal target is close to alternating magnetic field and when reaching distance of reaction, eddy current is produced in metal target, thus cause the oscillatory extinction of oscillator so that failure of oscillation, the change of oscillator vibrates is by the process of safety barrier output loop and convert switching signal to, switching signal exports the auxiliary reclay triggering four-in-one kettle through on-off circuit, make the band-type brake motor power-off of four-in-one kettle, the band-type brake hydraulic mechanism of four-in-one kettle resets and is held tightly by main frame-speed reducer coupling, four-in-one kettle stops operating,
Often revolve for four-in-one kettle when preventing from normally producing and turn around, metal target often near proximity switch once, safety barrier output loop is with regard to action phenomenon once, the normally opened contact of the scram button of four-in-one kettle is connected on safety barrier output loop, ensure that safety barrier output loop is off-state when normal production, four-in-one kettle runs well;
Running into overtemperature, during superpressure emergency condition, operating personnel directly press the scram button of four-in-one kettle, the Main Engine Cut-Off of four-in-one kettle, acoustic-optic alarm is reported to the police and is evacuated field staff, connect the safety barrier output loop of inductance approach switch simultaneously, when metal target is close to alternating magnetic field and when reaching distance of reaction, it is electric that safety barrier output loop makes the auxiliary reclay of four-in-one kettle obtain by on-off circuit output switching signal, control auxiliary reclay normally closed contact to disconnect, make the power-off of band-type brake motor, band-type brake hydraulic mechanism resets, blow-out disc outlet towards secure side to time four-in-one kettle kettle stop.
2. a kind of sodium hydrosulfite four-in-one kettle blow-out disc secure side according to claim 1 is to localization method, it is characterized in that: because the elasticity of every platform four-in-one kettle band-type brake is different, metal target installation site in four-in-one kettle must be tested by platform still, after ensureing that kettle comes to a complete stop, blow-out disc outlet towards secure side to.
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| CN201310504084.8A CN103558863B (en) | 2013-10-23 | 2013-10-23 | A kind of sodium hydrosulfite four-in-one kettle blow-out disc secure side is to localization method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201626831U (en) * | 2010-02-05 | 2010-11-10 | 浙江杭特容器有限公司 | Sodium hydrosulfite four-in-one drying tower |
| CN201851727U (en) * | 2010-08-02 | 2011-06-01 | 宝钢集团新疆八一钢铁有限公司 | State detection device for arch-shaped metal rupture disc |
| CN102105196A (en) * | 2008-07-23 | 2011-06-22 | 道达尔石油化学产品研究弗吕公司 | Method to mitigate the consequences of an unconfined or partially confined vapor cloud explosion |
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| JP4622027B2 (en) * | 2000-03-21 | 2011-02-02 | 株式会社Ｇｓユアサ | Sealed battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102105196A (en) * | 2008-07-23 | 2011-06-22 | 道达尔石油化学产品研究弗吕公司 | Method to mitigate the consequences of an unconfined or partially confined vapor cloud explosion |
| CN201626831U (en) * | 2010-02-05 | 2010-11-10 | 浙江杭特容器有限公司 | Sodium hydrosulfite four-in-one drying tower |
| CN201851727U (en) * | 2010-08-02 | 2011-06-01 | 宝钢集团新疆八一钢铁有限公司 | State detection device for arch-shaped metal rupture disc |
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Denomination of invention: Method for positioning safety direction of explosion-proof membrane of sodium hydrosulfite four-in-one kettle Effective date of registration: 20180413 Granted publication date: 20151230 Pledgee: Huizhou merchant bank, Hefei Taihu Road Branch Pledgor: CNSG Anhui Hong Sifang Co., Ltd. Registration number: 2018340000109 |
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Date of cancellation: 20180625 Granted publication date: 20151230 Pledgee: Huizhou merchant bank, Hefei Taihu Road Branch Pledgor: CNSG Anhui Hong Sifang Co., Ltd. Registration number: 2018340000109 |