CN1230999A - Process for monitoring operation of device for feeding abrasive medium by means of fluid - Google Patents
Process for monitoring operation of device for feeding abrasive medium by means of fluid Download PDFInfo
- Publication number
- CN1230999A CN1230999A CN97198032A CN97198032A CN1230999A CN 1230999 A CN1230999 A CN 1230999A CN 97198032 A CN97198032 A CN 97198032A CN 97198032 A CN97198032 A CN 97198032A CN 1230999 A CN1230999 A CN 1230999A
- Authority
- CN
- China
- Prior art keywords
- fluid
- dust
- transfer lime
- burner
- passage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/02—Making special pig-iron, e.g. by applying additives, e.g. oxides of other metals
- C21B5/023—Injection of the additives into the melting part
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/02—Making special pig-iron, e.g. by applying additives, e.g. oxides of other metals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/0006—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances
- G01P13/0066—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using differences of pressure in the fluid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/0006—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances
- G01P13/0073—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using vibrations generated by the fluid
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Gasification And Melting Of Waste (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Processing Of Solid Wastes (AREA)
- Measuring Volume Flow (AREA)
- Regulation And Control Of Combustion (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
- Blast Furnaces (AREA)
Abstract
The invention concerns a method of monitoring the operation of a system for feeding an abrasive medium using fluid as conveying medium for at least one burner in a fusion vaporizer plant. The dust extracted from a fusion vaporizer plant or reduction shaft furnace is to be introduced by means of a fluid and via a dust-conveyer tube through at least one dust burner into the fusion vaporizer plant as an additional carbon-carrier. However, the method can also be applied in other melting or incineration plants, such as for example fluid bed reactors. The object to be achieved by this method is to determine as rapidly as possible whether hot gases or unburned oxygen have/has flowed back into the dust-recycling system. To that end, the flow direction in the feed system conveying pipe is measured downstream of the burner or burners. When backflow of the fluid flow is determined or when the presence of oxygen which has penetrated the feed system is determined, the feed system is stopped.
Description
The present invention relates to a kind of method of monitoring the device operation that imports abrasive material, particularly monitoring enters the method for the dust recycle system operation of melter gasifier, wherein, send into melter gasifier with as a kind of complementary carbon support via the dust transfer lime by at least one dust combustion device by means of a kind of fluid from melter gasifier or reduction converter effusive dust.Present method also can be used for by means of fluid jet grinding medium being added in other melting plant or the calcination device, for example fluidized-bed reactor.
DE4041936C1 has announced a kind of method that will turn back to again from the gas that deposits hot dust of melter gasifier or reduction converter in the melting gasifier process.Adopting an injector to make in this method wants the round-robin dust to turn back in the melting gasifier via the dust transfer lime and by at least one dust combustion device.
In operational process, under the known stringent condition that is used for melting gasifier, hot gas or unburned oxygen can be back to the dust recycle system.Have very large danger in this case, promptly installing parts can be impaired or destroyed because of blast.
Therefore, the present invention's purpose is to monitor as soon as possible and prevents reliably because gas flows back to the caused danger of the dust recycle system.
According to the present invention, this purpose can reach with the contained characteristic of claim 1.Advantageous embodiment of the present invention and further the expansion may be embodied in the characteristic of dependent claims.
By the flow direction of the monitoring dust recycle system in transfer lime, the dust that wherein returns will be abrasive material and a kind of complementary carbon support that can be used as melting gasifier, can determine whether to have taken place any undesirable gas backstreaming with the better way method, and can take appropriate measures with the generation of the danger (blast) that prevents from reliably to be mentioned.
A kind of favourable measure is to monitor simultaneously the pressure in melting gasifier and the dust transfer lime.When the pressure that monitors the dust transfer lime raises, if the pressure of melting gasifier does not have corresponding rising, then can clearly reach a conclusion, a kind ofly undesirable this system is caused that dangerous operating conditions reaches.Measuring result in this case shows that hot gas or oxygen have entered the dust delivery system of the dust recycle system, and should corresponding reacting so that eliminate danger state.
The method that flows in a kind of particularly advantageous definite dust transfer lime is, at least two measurement passages are connected the dust carrier wall, and these measurement passages are different on measurement plane for the axial inclination angle of dust transfer lime.In this case, measure axially orthogonal thereto that passage can be with the dust transfer lime for one, and second measured passage and can be acute angle with this axle.
Another kind of measuring method is based on principle of hydrodynamics, and promptly a kind of fluid imports transportation flow through measuring access opening, and this produces the obstruction that prevents to measure access opening is favourable.
Nitrogen is particularly suitable for making such measurement fluid, because nitrogen is a kind of well-known rare gas element, it does not have dangerous in the dust recycle system.
Owing to measure passage the dust transfer lime axially is different inclinations, except passing through zero point or the determined operating point of null balance, two pressure of measuring in the passage are always different, and under the identical situation of all the other conditions, and this pressure reduction is the measuring of flow velocity in the transfer lime.If characterize no stream mode with null balance by a kind of suitable mode, can directly draw the conclusion of reversal of direction of flow so from the variation of pressure reduction symbol, this reverse is the prerequisite that hot combustion gas or oxygen pass back into the hazardous condition of dust transfer lime.But the arrangement mode of the measurement passage of being advised can be with other scheme to adapt to different conditions, the other measurement passage inclination angle of particularly selecting for use its force value to compare mutually.
The possible method that another kind of monitoring oxygen passes back into the dust recycle system is, promptly imports flame monitor by the dust carrier wall.In this method, to note also should noting the disadvantageous effect that the unwanted component (for example H2S) in the transportation flow causes because dust stops up the problem that causes.Flame monitor has fuel gas supply and portfire, and this device can be designed to for example glow plug or spark generator.If oxygen enters the dust transfer lime and arrives flame monitor through dust combustion device hole, the igniting of fuel gas mixture then takes place, this can monitor by optics or acoustic sensor or by temperature.
Below by the embodiment description more detailed in addition to the present invention.
Accompanying drawing characterizes:
Fig. 1 represents to use the circuit block diagrams of the hydrokinetics measuring principle with two measurement passages;
Fig. 2 represents multiple possible measurement arrangement of passages scheme;
Fig. 3 represents by the monitoring of flame monitor to the dust transfer lime.
Fig. 1 shows the differential pressure measurement principle, and this measurement is measured in the passage 1 and 2 at two and carried out.What measure passage 1 and 2 here, is that introduce in hole through running through dust transfer lime 3 walls.Wherein, measure the axially orthogonal thereto of passage 1 and dust transfer lime 3, measure passage 2 and then axially be acute angle with this.Arrow Vc shown in Figure 1 characterizes the direction that precarious position may occur, and promptly hot gas or oxygen pass back into system.In principle, also can adopt the probe and the flow direction to be reverse arrangement mode.
Nitrogen is sent into through air-supply duct 4 and is measured passage 1 and 2.The volumetric flow rate of sending into the nitrogen of measuring passage 1 and 2 keeps constant by means of Controlling System.For this purpose, be provided with volumetric flow rate probe 5 and 6 and control cut down 7 and 8.To measure fluid (nitrogen) in order introducing, another to be set to cut down door 9, and with pressure transmitter 10 phase velocities.
The differential pressure measurement in passage 1 and 2, the absolute pressure of dust transfer lime 3 is by means of another pressure transmitter 11 monitoring.
Passage 1 and 2 pressure reduction are measured with pressure transmitter 12.Institute's pressure measurement difference is the measuring of flow velocity in the transfer lime.If characterize no stream mode, then can find to reflux in the dust transfer lime 3, thereby send a corresponding signal to stop entering of oxygen by means of the change of pressure reduction symbol with null balance.The prevention mechanism that is suitable for this purpose does not illustrate in the drawings.
Can measure the absolute set(ting)value that fluid flows through measurement passage 1 and 2 for suitable selected two strands according to desired measurement sensitivity of differential pressure measurement and useful range, thus the optimization district that is suitable for monitoring can be set without difficulty.Measure fluidic stream ratio by being provided with, also can set up the pressure reduction null balance.
Fluid is parallel to be injected into two measurement passages 1 and 2 by measuring, and measures these two pressure reduction of measuring between the passage, and observed value is almost irrelevant with static pressure, and accepts the influence of gases used static pressure (promptly via density) only.Measure the small inclination (holes dust transfer lime 3 walls on) of passage, the Bernoulli measuring principle P that can not realize ideal to flowing to
Dynamically=P
Always-P
Static, thereby must corresponding measurement of calibration arrange.
Represent two six kinds of different arrangements altogether of measuring passage from Fig. 2, given the selected of arrangement of a top here row is to make the corresponding hole of respectively measuring passage be arranged on the same point of dust transfer lime 3.
But also existence will be measured the possibility of metering orifice spaced apart on the position of passage, and this mode is shown in the following row of Fig. 2.If select a kind of arrangement mode in back, when the pressure reduction between direct measurement passage 1 and 2, must consider because the time constant of the growth that distance determined between the metering orifice.
In addition, on adopting on one point the scheme of measuring passage is set and reaches the much higher measurement sensitivity of scheme that separates than measurement point under certain condition.
Fig. 3 has enumerated an alternative embodiment of the invention, and supervisory system has wherein adopted flame monitor 13.
The flame monitor 13 here is to the wall of small part break-through dust handling machinery 3, from melting gasifier under the situation that dust combustion device (this figure is not shown) refluxes, oxygen can arrive the zone of flame monitor 13.Inflammable gas is introduced and can be imported in the dust transfer lime 3 by the wore long hole of flame monitor 13 of supply line 14, and the flow direction of combustion gas can be discerned from arrow.
In addition, also have portfire 15, this device for example can be designed to glow plug or spark generator.If at this moment oxygen arrives the zone of flame monitor 13, by means of portfire 15 combustion gas is lighted, this example adopts optical monitoring system 16, measures whether aerobic exists in the dust transfer lime 3.In order to protect optical monitoring system 16, protective glass 17 was installed before lens combination 18, the light that system 18 can survey when lighting focuses on the photocell 19.
Except the optical monitoring device of flame monitor 13, also may adopt corresponding acoustic sensor or temperature sensor.
Claims (7)
1. make delivery medium by fluid and import the monitoring method of the device operation of abrasive material for one kind, this fluid enters melting gasifier through a burner at least, wherein measuring this fluidic in the transfer lime of seeing the feed system after at least one burner from melting gasifier flows to, with as flow into the hot gas of feed system or the proof of oxygen by melting gasifier, in case find that oxygen enters, stop immediately and supply with.
2. the method for claim 1, it is characterized in that, mensuration is melted the gasifier neutralization ought be from melting gasifier, air pressure in the transfer lime after at least one burner (3), increase at the pressure of finding transfer lime (3), and under the situation that the pressure of melting gasifier does not increase simultaneously, produce switch signal.
3. the method for claim 3 is characterized in that, spurts in the transportation flow through measuring passage (1,2) with the flow littler than transportation flow measuring fluid.
4. the method one of among the claim 1-4 is characterized in that, measures to measure the fluidic volumetric flow rate in the passage (1,2) and keep constant.
5. the method one of among the claim 1-5 is characterized in that, adopts rare gas element to make to measure fluid.
6. the method for claim 6 is characterized in that, adopts nitrogen.
7. the method for claim 1 is characterized in that, the flame monitor (13) that is installed in the transfer lime (3) is to adopt optics or acoustic method monitoring.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19638346.3 | 1996-09-19 | ||
| DE1996138346 DE19638346C1 (en) | 1996-09-19 | 1996-09-19 | Method for monitoring the operation of a device for supplying an abrasive medium with the aid of a fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1230999A true CN1230999A (en) | 1999-10-06 |
Family
ID=7806197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97198032A Pending CN1230999A (en) | 1996-09-19 | 1997-09-02 | Process for monitoring operation of device for feeding abrasive medium by means of fluid |
Country Status (16)
| Country | Link |
|---|---|
| EP (1) | EP0951570A1 (en) |
| JP (1) | JP2001501729A (en) |
| KR (1) | KR20000036213A (en) |
| CN (1) | CN1230999A (en) |
| AT (1) | ATA909097A (en) |
| AU (1) | AU723335B2 (en) |
| BR (1) | BR9711402A (en) |
| CA (1) | CA2266328A1 (en) |
| DE (1) | DE19638346C1 (en) |
| ID (1) | ID18315A (en) |
| PL (1) | PL332239A1 (en) |
| SK (1) | SK35799A3 (en) |
| TR (1) | TR199900608T2 (en) |
| TW (1) | TW350877B (en) |
| WO (1) | WO1998012357A1 (en) |
| ZA (1) | ZA977132B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105879786A (en) * | 2008-12-02 | 2016-08-24 | 犹德有限公司 | Device and process for catalytic gas phase reactions and use thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4114144A (en) * | 1976-08-12 | 1978-09-12 | Imed Corporation | Automatic air-in-line fluid detector |
| AT388388B (en) * | 1983-11-24 | 1989-06-12 | Voest Alpine Ag | METHOD AND DEVICE FOR MELTING IRON IN A MELT-UP CARBURETTOR |
| US4624684A (en) * | 1985-09-03 | 1986-11-25 | Texaco Inc. | Process for feeding and gasifying solid carbonaceous fuel |
| DE3603894A1 (en) * | 1986-02-05 | 1987-08-06 | Korf Engineering Gmbh | METHOD FOR PRODUCING LIQUID PIPE IRON OR STEEL PRE-MATERIAL |
| DE3637537A1 (en) * | 1986-11-04 | 1988-05-05 | Vdo Schindling | DEVICE FOR DETERMINING THE FLOW DIRECTION |
| DE4041936C1 (en) * | 1990-12-27 | 1992-09-24 | Deutsche Voest-Alpine Industrieanlagenbau Gmbh, 4000 Duesseldorf, De | |
| JPH06335628A (en) * | 1993-05-31 | 1994-12-06 | Mitsubishi Heavy Ind Ltd | Powder feeder |
-
1996
- 1996-09-19 DE DE1996138346 patent/DE19638346C1/en not_active Expired - Fee Related
-
1997
- 1997-08-11 ZA ZA9707132A patent/ZA977132B/en unknown
- 1997-09-02 WO PCT/DE1997/001966 patent/WO1998012357A1/en not_active Application Discontinuation
- 1997-09-02 TR TR1999/00608T patent/TR199900608T2/en unknown
- 1997-09-02 SK SK357-99A patent/SK35799A3/en unknown
- 1997-09-02 CA CA 2266328 patent/CA2266328A1/en not_active Abandoned
- 1997-09-02 BR BR9711402A patent/BR9711402A/en not_active Application Discontinuation
- 1997-09-02 AU AU44506/97A patent/AU723335B2/en not_active Ceased
- 1997-09-02 JP JP51415898A patent/JP2001501729A/en active Pending
- 1997-09-02 EP EP97942797A patent/EP0951570A1/en not_active Withdrawn
- 1997-09-02 PL PL33223997A patent/PL332239A1/en unknown
- 1997-09-02 KR KR1019997002274A patent/KR20000036213A/en not_active Application Discontinuation
- 1997-09-02 CN CN97198032A patent/CN1230999A/en active Pending
- 1997-09-02 AT AT909097A patent/ATA909097A/en not_active Application Discontinuation
- 1997-09-02 TW TW086112619A patent/TW350877B/en active
- 1997-09-19 ID ID973244A patent/ID18315A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105879786A (en) * | 2008-12-02 | 2016-08-24 | 犹德有限公司 | Device and process for catalytic gas phase reactions and use thereof |
| CN105879786B (en) * | 2008-12-02 | 2019-08-06 | 犹德有限公司 | For catalytic gas phase reaction device and method with and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TR199900608T2 (en) | 1999-07-21 |
| ATA909097A (en) | 2001-05-15 |
| AU4450697A (en) | 1998-04-14 |
| WO1998012357A1 (en) | 1998-03-26 |
| ID18315A (en) | 1998-03-26 |
| SK35799A3 (en) | 2000-02-14 |
| TW350877B (en) | 1999-01-21 |
| DE19638346C1 (en) | 1998-02-12 |
| PL332239A1 (en) | 1999-08-30 |
| KR20000036213A (en) | 2000-06-26 |
| CA2266328A1 (en) | 1998-03-26 |
| AU723335B2 (en) | 2000-08-24 |
| JP2001501729A (en) | 2001-02-06 |
| EP0951570A1 (en) | 1999-10-27 |
| ZA977132B (en) | 1998-02-20 |
| BR9711402A (en) | 1999-08-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |