CN101354290B - Device for detecting temperature of sintered trolley and use method thereof, and sintered trolley - Google Patents
Device for detecting temperature of sintered trolley and use method thereof, and sintered trolley Download PDFInfo
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- CN101354290B CN101354290B CN2008102156521A CN200810215652A CN101354290B CN 101354290 B CN101354290 B CN 101354290B CN 2008102156521 A CN2008102156521 A CN 2008102156521A CN 200810215652 A CN200810215652 A CN 200810215652A CN 101354290 B CN101354290 B CN 101354290B
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Abstract
The invention provides a temperature detecting device used for a sintering trolley, a use method thereof and a sintering trolley. The temperature detecting device used for the sintering trolley of the invention comprises a protection casing and a flexible thermocouple; the protection casing is centrally hollow and with at least one of the two ends being an open end; the working end of the flexible thermocouple is inserted into the open end of the protection casing and is movably matched with the protection casing in the protection casing. The invention also provides the use method used for the temperature detecting device of the sintering trolley and the sintering trolley. By adopting the temperature detecting device, the use method and the sintering trolley, section temperature distribution of the sintering trolley can be precisely obtained.
Description
Technical field
The present invention relates to field of iron and steel smelting, particularly relate to a kind of temperature-detecting device that is used for pallet and using method, pallet.
Background technology
In the smelting iron and steel technology, sintering process is very important together operation.Referring to Fig. 1, this operation relates to mix mine groove 1, distributing device 2, pallet 3, sintering bellows 4 and ignition furnace 5.Compound in the mix mine groove 1 is laid on the pallet 3 of continuous pallettype sintering machine through distributing device 2.By the negative pressure exhausting of ignition furnace 5 igniting and sintering bellows 4, be pre-mixed the coke powder burning in compound, the heat of generation makes compound partial melting (or semi-molten), and roasting becomes piece.Along with pallet 3 moves forward, the compound bed of material is grilled thoroughly from top to bottom gradually, and forms sintering deposit.The agglomerate that sintering is ended falls to cooler by the afterbody of pallet 3.
In the sintering process shown in Figure 1, the quality of mixture roasting is directly connected to the quality of finished product sintering deposit.In sintering process, the operative employee need judge sintering state according to the distribution situation of pallet 3 section temperatures, take corresponding measure that sintering state is adjusted, make sintering machine be in optimal operational condition, reach the purpose of energy savings, raising output and sinter quality.Therefore, in sintering process, the section temperature that accurately obtains pallet is very important.
Fig. 2 is typical sintering bench section figure.Fig. 2 comprises: pallet 3, sintering bellows 4 and operating platform 6.Described pallet 3 section widths are generally 2.5～4.5 meters.Described sintering bellows 4 are made up of cavity 401 and bellows bucket 402.Described cavity 401 surrounds by the curb girder that is parallel to pallet 3 direction of transfers with perpendicular to the crossbeam of pallet 3 direction of transfers.The curb girder plate of described bellows and the spacing between the operating platform 6 are generally about 30cm.
In the prior art, adopt 7 pairs of pallets shown in Figure 2 of industrial assembled thermopair 3 to carry out section temperature and detect.Described industrial assembled thermopair 7 is made up of thermode and protective casing.Described thermode is encapsulated in the protective casing.Described protective casing is a rigid structure.Adopt insulation tube to carry out insulation protection between the described thermode and between thermode and the protective casing.When pallet 3 section temperatures are measured, only need sintering bellows 4 inside are inserted in the working end of described industrial assembled thermopair 7, the external Displaying Meter of its output terminal gets final product.
By sintering process general knowledge as can be known, the position of temperature detecting point is the closer to the bottom of pallet 3, and the section temperature that can accurately obtain pallet 3 more distributes.Therefore, the optimum temperature check point should be in the cavity 401 that bellows curb girder and crossbeam surround, near the position of pallet 3 bottom surfaces.But as shown in Figure 2, outside, described optimum temperature check point position is operated platform 6 and stops, and the spacing between described bellows curb girder plate and the operating platform 6 only has about 30cm, is far smaller than the length of temperature monitor 7.Therefore, being difficult to length is that one to two meter temperature monitor 7 directly is inserted into above-mentioned optimal detection point position.
Therefore, in the prior art, described temperature monitor 7 can only be inserted into cavity 401 belows that bellows curb girder and crossbeam surround, near the position of bellows bucket 402.Referring to shown in Figure 2, with the section temperature of detected sintering bellows 4 temperature inside as pallet 3.The position of described temperature detecting point is far away apart from pallet 3 bottom surfaces.The temperature value that records does not thus have the representativeness of pallet 3 section temperatures, can not accurately reflect the distribution situation of pallet 3 section temperatures.
Summary of the invention
Technical matters to be solved by this invention provides a kind of temperature-detecting device that is used for pallet and using method, pallet, and the section temperature that can obtain pallet accurately distributes.
For solving the problems of the technologies described above, the invention provides a kind of temperature-detecting device that is used for pallet, comprising: protective casing and flexible thermopair; It is openend that described protective casing hollow, two ends have an end at least; The working end of described flexible thermopair is penetrated by the openend of described protective casing, mates with protective casing is movable in described protective casing; Described movable coupling is specially: when measuring the sintering bench section temperature, described flexible thermopair is put into described protective casing, after measurement finishes, regain described flexible thermopair.
Wherein, described protective casing sidewall has instrument connection; The working end of described flexible thermopair is passed by described instrument connection.
Wherein, different flexible thermopairs pass from different instrument connections.
The present invention also provides a kind of using method that is used for the temperature-detecting device of pallet, and described method comprises: on bellows curb girder plate, near pallet basal surface position fixed installation protective casing; When detecting the sintering bench section temperature, the working end of the flexible thermopair openend by described protective casing is penetrated; The output termination Displaying Meter of described flexible thermopair is exported detected temperature value; After detecting end, regain described flexible thermopair.
Wherein, when described protective casing sidewall had instrument connection, the working end of described flexible thermopair was passed by the instrument connection of correspondence.
The present invention also provides a kind of pallet, on bellows curb girder plate, protective casing is arranged near the stationkeeping of pallet bottom surface, and described protective casing hollow and to have an end at least be openend; In described protective casing, the working end of flexible thermopair is penetrated by the openend of described protective casing, with the movable coupling of protective casing; Described movable coupling is specially: when measuring the sintering bench section temperature, described flexible thermopair is put into described protective casing, after measurement finishes, regain described flexible thermopair.
Wherein, the center line of described protective casing is perpendicular to the curb girder plate of described bellows.
Wherein, described protective casing sidewall has instrument connection.
Wherein, the working end of described flexible thermopair is passed by the instrument connection of correspondence.
Wherein, the opening direction of described instrument connection is over against the bottom surface of pallet.
Compared with prior art, the present invention has the following advantages:
The present invention is according to the specific (special) requirements of sintering process, and a kind of temperature-detecting device that is used for pallet and using method, pallet are provided.Described temperature-detecting device comprises protective casing and the flexible thermopair that mates with described protective casing activity.Described protective casing hollow, two ends have at least one to be openend.Before being fixed to described pallet on the operating platform, with described protective casing predetermined fixed on described bellows curb girder plate, near the pallet basal surface position.The working end of the described flexible thermopair openend by described protective casing is penetrated its output termination proving installation.Thus, can detect the position at the optimum temperature check point place very near, improve the accuracy of sintering bench section temperature detection apart from the pallet bottom surface.
Description of drawings
Fig. 1 is the sintering machine structural drawing;
Fig. 2 is typical sintering bench section figure;
Fig. 3 is sintering bench section figure of the present invention;
Fig. 4 is pallet partial enlarged drawing of the present invention;
Fig. 5 a is pallet side view of the present invention;
Fig. 5 b is pallet vertical view of the present invention;
Fig. 6 is the temperature-detecting device structural drawing that is used for pallet of the present invention;
Fig. 7 is the temperature-detecting device using method process flow diagram that is used for pallet of the present invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
The present invention is according to the specific (special) requirements of sintering process, and a kind of temperature-detecting device that is used for pallet and using method, pallet are provided.Described temperature-detecting device comprises protective casing and the flexible thermopair that mates with described protective casing activity.Described protective casing hollow, two ends have at least one to be openend.Before being fixed to described pallet on the operating platform, with described protective casing predetermined fixed on described bellows curb girder plate, near the pallet basal surface position.The working end of the described flexible thermopair openend by described protective casing is penetrated its output termination proving installation.Thus, can detect the position at the optimum temperature check point place very near, improve the accuracy of sintering bench section temperature detection apart from the pallet bottom surface.
Referring to shown in Figure 3, be respectively the described sintering bench section figure of the embodiment of the invention.
Fig. 3 comprises pallet 3, sintering bellows 4, operating platform 6, protective casing 8 and flexible thermopair 9.Described pallet 3 section widths are generally 2.5～4.5 meters.Described sintering bellows 4 are made up of cavity 401 and bellows bucket 402.Described cavity 401 surrounds by the curb girder that is parallel to pallet 3 direction of transfers with perpendicular to the crossbeam of pallet 3 direction of transfers.The curb girder plate of described bellows and the spacing between the operating platform 6 are generally about 30cm.Described protective casing 8 hollows, having an end at least is openend.Described protective casing 8 two ends are fixedly mounted on the described bellows curb girder plate, close pallet 3 basal surface positions.
Described flexible thermopair 9 can free bend, and its working end is penetrated by the openend of described protective casing 8, in described protective casing 8, with described protective casing 8 movable couplings.Described protective casing 8 and flexible thermopair 9 are used to detect pallet 3 section temperatures and distribute.
By sintering process as can be known, near pallet 3 bottom positions, the pallet 3 section temperature values that record are accurate for temperature survey point.Therefore, the optimum temperature detection position should be in the cavity 401 that described bellows curb girder and crossbeam surround, near pallet 3 basal surface positions.But as shown in Figure 3, outside, described optimum temperature detection position is operated platform 6 and stops, and the spacing between described bellows curb girder plate and the operating platform 6 only has about 30cm.Therefore, be difficult to the industrial assembled thermopair of routine usefulness directly is inserted into the section temperature of above-mentioned optimum detection position probing pallet 3.
In order to detect the temperature value of above-mentioned optimum temperature detection position; pallet 3 of the present invention; before being fixed on the operating platform 6; two ends with protective casing 8 are fixedly mounted on above-mentioned optimum temperature detection position in advance, on the promptly described bellows curb girder plate, near pallet 3 bottom position places.
In order to detect the temperature value of any temperature detecting point on the described pallet 3 whole transversal section; the length of described protective casing 8 is identical with pallet 3 transversal section width, and its cross-sectional area size is specifically determined according to conditions such as actual measurement requirement and sintering operating modes.
In order to adapt to the sintering process requirement, described protective casing 8 is general to adopt material high temperature resistant and that have a higher mechanical strength to make, as copper pipe, metallic ceramics etc.
Flexible thermopair 9 of the present invention and described protective casing 8 movable couplings.
In the practical application, can when predetermined fixed is installed protective casing 8, described flexible thermopair 9 directly be placed in the described protective casing 8.
In the practical application, also can be when pallet 3 section temperatures be monitored, according to actual needs, the working end of described flexible thermopair 9 is penetrated in the described protective casing 8, detect finish after, again will described flexible thermopair 9 withdrawals.Like this can the flexible thermopair 9 of better protection, increase the serviceable life of flexible thermopair 9.
In sintering process, the number of temperature detecting point and position can specifically be determined according to the actual needs and the technological requirement of sintering process.Such as, when pallet 3 section broads,, need to increase the number of temperature detecting point for the section temperature that obtains described pallet 3 exactly distributes.For another example, need simultaneously the central temperature of pallet 3 and lip temperature measured etc.
The industrial assembled thermopair that adopts in conventional the production is difficult to satisfy above-mentioned requirements.For conventional thermopair, the number and the position of its temperature detecting point are generally all fixed, and can not arbitrarily change.When the number of temperature detecting point or position change, can only change thermopair, select the thermopair of coupling to measure.
And flexible thermopair 9 of the present invention is movable coupling with described protective casing 8.Therefore, can solve the problem that temperature detecting point number or change in location are brought simply and easily.
When described temperature detecting point increases or reduce, only need to increase or reduce the described number that penetrates the flexible thermopair 9 in the protective casing 8 and get final product.When the position of described temperature detecting point changes, as long as change the position of working end in described protective casing 8 of described flexible thermopair 9.
In order to improve the accuracy of temperature detection, can on the sidewall of described protective casing 8, offer and detect the hole.Referring to shown in Figure 3, the working end of described flexible thermopair 9 is penetrated by the openend of described protective casing 8, and is passed by the detection hole of correspondence, to detect the temperature value of relevant temperature check point.
In sintering process, be subjected to the influence of sintering bellows 4 exhausting, the detected temperature of different temperatures check point that is on the different level can be different.Have only the detected temperature of temperature detecting point on the same surface level just can better reflect pallet 3 section temperature distribution situations under the same operating mode.The method of conventional sense pallet 3 section temperatures all is to adopt to insert industrial assembled thermopair from sintering bellows 4 both sides.Be difficult to like this guarantee that the industrial assembled thermopair that insert respectively sintering bellows 4 both sides can be on the same surface level.
When having the detection hole on the sidewall of described protective casing 8, only need guarantee that described detection hole is located along the same line.Simultaneously, when the described protective casing 8 of fixed installation, make the opening direction in described detection hole face the bottom surface of pallet 3.
Referring to shown in Figure 4, be the described pallet partial enlarged drawing of the embodiment of the invention.The embodiment of the invention is that example describes with 6 flexible thermopairs.
Be provided with 6 flexible thermopairs 91～96 in the described protective casing 8.Described protective casing 8 two ends are openend, are respectively first openend 81 and second openend 82.
Preestablish the temperature detecting point position that needs detection, shown among Fig. 4 831～836.
The working end of described flexible thermopair 91～93 is penetrated, is placed on respectively temperature detecting point 831～833 places by first openend 81 of described protective casing 8.The output termination Displaying Meter of described flexible thermopair 91～93 is exported detected temperature value.The length of described flexible thermopair 91～93 equals the distance of described first openend 81 to described temperature detecting point 831～833 respectively.
The working end of described flexible thermopair 94～96 is penetrated, is placed on respectively temperature detecting point 834～836 places by second openend 82 of described protective casing 8.The output termination Displaying Meter of described flexible thermopair 94～96 is exported detected temperature value.The length of described flexible thermopair 94～96 equals the distance of described first openend 81 to described temperature detecting point 834～836 respectively.
When needs to pallet 3 section temperatures on more temperature detecting point when carrying out temperature detection, only need to increase flexible thermopair 9, the working end of flexible thermopair 9 is penetrated in the protective casing 8, be placed on corresponding position and get final product.
In other embodiments of the invention, it is openend that described protective casing 8 also can have only an end, other end sealing.The working end of all flexible thermopairs 9 penetrates by the openend of described protective casing 8, mates with described protective casing 8 activities in described protective casing 8.
In order to improve the accuracy of temperature detection, can on the sidewall of described protective casing 8, offer and detect the hole.Referring to shown in Figure 4, on the sidewall of described protective casing 8,, offer respectively and detect the hole corresponding to the position of temperature detecting point 831～836.The working end of described flexible thermopair 91～96 is passed by the detection hole of correspondence respectively.
Referring to Fig. 5 a and Fig. 5 b, be respectively described pallet side view of the embodiment of the invention and vertical view.
Referring to Fig. 5 a, comprise pallet 3 and sintering bellows 4.Described sintering bellows 4 are by bellows 41, bellows 42, bellows 43 ... a plurality of bellows such as bellows N composition that is linked in sequence.On the curb girder plate of each bellows, near the position of pallet 3 bottoms, equal fixing protective casings 8, and 6 flexible thermopairs are set in each protective casing 8.
In order to detect pallet 3 section temperature ground distribution situations better; guarantee that all temperature detecting point are positioned on the same surface level; when the described protective casing 8 of fixed installation; the center line of guaranteeing described protective casing 8 is perpendicular to described bellows curb girder plate, and the center line of all protective casings 8 is positioned on the same surface level.
Shown in Fig. 5 b, each round dot is represented the position of temperature detecting point on the protective casing 8.By Fig. 5 b as can be known, on the pallet 3 horizontal sections of each bellows correspondence, detect 6 temperature value.By the temperature value that all detections obtain, can obtain vertical 6 temperature curves about pallet 3.The situation of grilling thoroughly that can reflect pallet 3 vertical 6 zones according to these 6 temperature curves.Thus, can obtain the section temperature distribution situation of pallet 3 exactly, thereby, take corresponding measure that sintering state is adjusted sintering state is accurately judged, so that sintering machine is in optimal operational condition, reach the purpose of energy savings, raising output and sintering quality.
The present invention also provides a kind of temperature-detecting device that is used for pallet.Referring to shown in Figure 6, be used for the temperature-detecting device structural drawing of pallet for the embodiment of the invention is described.
Described temperature-detecting device 60 comprises: protective casing 601 and flexible thermopair 602.
Described protective casing 601 is a hollow, and two ends are openend.
Described flexible thermopair 602 can free bend, and its working end is penetrated by the openend of described protective casing 601, in described protective casing 601 with described protective casing 601 movable couplings.
Temperature-detecting device 60 of the present invention can directly be placed on described flexible thermopair 602 in the described protective casing 601 in advance.
Temperature-detecting device 60 of the present invention also can according to actual needs, penetrate described flexible thermopair 602 working ends in the described protective casing 601 in use.After finishing using, more described flexible thermopair 602 is regained.Like this can the flexible thermopair 602 of better protection, increase the serviceable life of flexible thermopair 602.
The thermopair that adopts in conventional the production, the number and the position of its temperature detecting point are generally all fixed, and can not arbitrarily change.When the number of temperature detecting point or position change, can only change thermopair, select the thermopair of coupling to measure.
And flexible thermopair 602 of the present invention is movable coupling with described protective casing 601.Therefore, can solve the problem that temperature detecting point number or change in location are brought simply and easily.
Temperature-detecting device 60 of the present invention, the number of its flexible thermopair 602 can be set flexibly.In use, the number flexible configuration of the temperature detecting point that can detect according to actual needs.Temperature-detecting device 60 shown in Figure 6 is equipped with 6 flexible thermopairs 602, can detect the temperature value of 6 temperature detecting point.When needs when detecting more multi-point temp, only need to increase the number of flexible thermopair 602, the working end of flexible thermopair 602 is penetrated in the protective casing 601, be placed on corresponding position and get final product.
Temperature-detecting device 60 of the present invention, the position of its temperature detecting point also can be set flexibly.In use, the position of the temperature detecting point that can detect according to actual needs, the relevant position that the working end of described flexible thermopair 602 is penetrated described protective casing 601 gets final product.
When using temperature-detecting device 60 of the present invention to carry out temperature detection, when increasing or reduce temperature detecting point, only need increase or reduce the described number that penetrates the flexible thermopair 602 in the protective casing 601 accordingly and get final product.When the position of described temperature detecting point changes, as long as change the position of working end in described protective casing 601 of described flexible thermopair 602.
In order to improve the accuracy of measurement, can on the sidewall of described protective casing 601, offer and detect the hole.The working end of described flexible thermopair 602 is penetrated by the openend of described protective casing 601, and is passed by the detection hole of correspondence, to detect the temperature value of relevant position check point.
In order to make described temperature-detecting device 60 detected temperature detecting point point-blank, on the sidewall of described protective casing 601, offer when detecting the hole, described detection hole is located along the same line.
In order to adapt to the sintering process requirement, described protective casing 601 is general to adopt material high temperature resistant and that have a higher mechanical strength to make, as copper pipe, metallic ceramics etc.
In other embodiments of the invention, it is openend that described protective casing 601 also can have only an end, other end sealing.The working end of all flexible thermopairs penetrates by the openend of described protective casing 601, mates with described protective casing 601 activities in described protective casing 601.
Referring to Fig. 7, be used for the temperature-detecting device using method process flow diagram of pallet for the embodiment of the invention is described.Described method comprises:
Step 701: with described protective casing two ends be fixed on the described bellows curb girder plate, near on the pallet basal surface position.
By sintering process as can be known, near the pallet bottom position, the sintering bench section temperature value that records is accurate for temperature survey point.Therefore, before being fixed to pallet on the operating platform, in advance described protective casing is fixedly mounted on above-mentioned optimum temperature detection position, on the promptly described bellows curb girder plate, near pallet bottom position place.
Step 702: the working end of the described flexible thermopair openend by described protective casing is penetrated, in described protective casing, with the movable coupling of protective casing.
During actual the use, can when fixing protective casing, in advance described flexible thermopair directly be placed in the described protective casing.
During actual the use, also can when detected temperatures, according to actual needs, described flexible thermopair be penetrated in the described protective casing.After finishing using, more described flexible thermopair is regained.Like this can the flexible thermopair of better protection, increase the serviceable life of flexible thermopair.
Step 703: the output termination Displaying Meter of described flexible thermopair, export detected temperature value.
In order to improve the accuracy of measurement, can on the sidewall of described protective casing, offer and detect the hole.At this moment, step 702 comprises: the working end of the described flexible thermopair openend by described protective casing is penetrated, and passes by the detection hole of correspondence, in described protective casing, with the movable coupling of protective casing.
More than to a kind of temperature-detecting device that is used for pallet provided by the present invention and using method, pallet, be described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (7)
1. a temperature-detecting device that is used for pallet is characterized in that, comprising: protective casing and flexible thermopair;
It is openend that described protective casing hollow, two ends have an end at least;
The working end of described flexible thermopair is penetrated by the openend of described protective casing, mates with protective casing is movable in described protective casing;
Described movable coupling is specially: when measuring the sintering bench section temperature, described flexible thermopair is put into described protective casing, after measurement finishes, regain described flexible thermopair.
2. device according to claim 1 is characterized in that, described protective casing sidewall has instrument connection; The working end of described flexible thermopair is passed by described instrument connection.
3. device according to claim 2 is characterized in that, different flexible thermopairs pass from different instrument connections.
4. a using method that is used for the temperature-detecting device of pallet is characterized in that, described method comprises:
On bellows curb girder plate, near pallet basal surface position fixed installation protective casing;
When detecting the sintering bench section temperature, the working end of the flexible thermopair openend by described protective casing is penetrated;
The output termination Displaying Meter of described flexible thermopair is exported detected temperature value;
After detecting end, regain described flexible thermopair.
5. using method according to claim 4 is characterized in that, when described protective casing sidewall had instrument connection, the working end of described flexible thermopair was passed by the instrument connection of correspondence.
6. a pallet is characterized in that, on bellows curb girder plate, protective casing is arranged near the stationkeeping of pallet bottom surface, and described protective casing hollow and to have an end at least be openend; In described protective casing, the working end of flexible thermopair is penetrated by the openend of described protective casing, with the movable coupling of protective casing;
Described movable coupling is specially: when measuring the sintering bench section temperature, described flexible thermopair is put into described protective casing, after measurement finishes, regain described flexible thermopair.
7. pallet according to claim 6 is characterized in that, the center line of described protective casing is perpendicular to the curb girder plate of described bellows.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102156521A CN101354290B (en) | 2008-09-08 | 2008-09-08 | Device for detecting temperature of sintered trolley and use method thereof, and sintered trolley |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102156521A CN101354290B (en) | 2008-09-08 | 2008-09-08 | Device for detecting temperature of sintered trolley and use method thereof, and sintered trolley |
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| CN101354290A CN101354290A (en) | 2009-01-28 |
| CN101354290B true CN101354290B (en) | 2010-08-18 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102023060A (en) * | 2010-10-22 | 2011-04-20 | 首钢总公司 | Device and method for testing ignition temperature field of sinter bed |
| CN103292921A (en) * | 2012-03-02 | 2013-09-11 | 陈海宗 | Temperature measuring device for intelligent sintering control model |
| CN107560441A (en) * | 2017-10-18 | 2018-01-09 | 山东钢铁股份有限公司 | A kind of bellows on-line monitoring device |
| CN107884087A (en) * | 2017-12-08 | 2018-04-06 | 鞍钢集团矿业有限公司 | A kind of test device and its method of sinter bed surface temperature |
| CN110319688B (en) * | 2018-03-29 | 2021-01-12 | 宝山钢铁股份有限公司 | Method and device for detecting negative pressure field of material layer in sintering machine trolley |
| CN209247188U (en) * | 2018-07-04 | 2019-08-13 | Wika亚历山大·威甘德欧洲股份两合公司 | Thermocouple structure and structure for fixing thermocouple in a reservoir |
| CN112325631B (en) * | 2020-11-04 | 2022-09-09 | 马鞍山钢铁股份有限公司 | Three-dimensional temperature field measuring device of belt type roasting machine |
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