CN103308019A - Peeled rotary kiln furnace lining thickness detecting method and device - Google Patents
Peeled rotary kiln furnace lining thickness detecting method and device Download PDFInfo
- Publication number
- CN103308019A CN103308019A CN2013102598956A CN201310259895A CN103308019A CN 103308019 A CN103308019 A CN 103308019A CN 2013102598956 A CN2013102598956 A CN 2013102598956A CN 201310259895 A CN201310259895 A CN 201310259895A CN 103308019 A CN103308019 A CN 103308019A
- Authority
- CN
- China
- Prior art keywords
- furnace lining
- rotary kiln
- thickness
- temperature
- internal surface
- 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.)
- Granted
Links
Images
Abstract
An embodiment of the invention discloses a peeled rotary kiln furnace lining thickness detecting method and device. A hole which does not penetrate a furnace lining in a kiln is formed in a rotary kiln wall from the outside to the inside. The method includes that when peeling of the furnace lining occurs, the bottom end temperature of the hole is measured, smoke temperature in the rotary kiln is obtained, inner surface temperature of the rotary kiln is obtained according to the smoke temperature and a preset first model, the reserved thickness of the furnace lining is obtained and is equal to a value obtained by the fact that the furnace lining total thickness deducts the hole depth, a furnace lining heat conduction coefficient is obtained, the heat flow density at the bottom end position of the hole is obtained, and the peeled furnace lining thickness is obtained by combining a second model. When the peeling of the furnace lining occurs, the peeled furnace lining thickness can be obtained timely and correctly by obtaining inner smoke temperature of the rotary kiln in real time, measuring the bottom end temperature of the hole on the kiln wall in real time, combining parameters of the obtained reserved thickness of the furnace lining and the like and the preset second model, so that process production operation and control of the rotary kiln are facilitated, and furnace lining peeling is reduced.
Description
Technical field
The embodiment of the invention relates generally to the rotary kiln technical field, especially relates to a kind of rotary kiln furnace lining and peels off thickness detecting method and device.
Background technology
Rotary kiln is a kind of high temperature kiln of continuous rotation, belongs to the nucleus equipment in acid pellet, the Direct Reducing Iron Process production line.The furnace lining of rotary kiln inside (is again refractory masses, be called for short the layer of anti-the material) directly contact with material, bearing lasting friction, shaking, cold and heat succeed each other and the number of chemical erosion, operating mode is very abominable, the situation that part is peeled off easily appears, the ring formation (knot kiln) that produces on the furnace lining simultaneously also easily draws the part furnace lining if layer can not get in time processing or dealing with improperly.The rotary kiln furnace lining peel off the normal production that directly has influence on rotary kiln, safeguard improperly may cause serious industrial accident.Therefore in order to instruct rotary kiln technology production operation and control, the detection of the rotary kiln furnace lining being peeled off thickness is extremely important.
Rotary kiln is a rotation, high temperature, substantially airtight device, manually is difficult to directly find out from the outside the thickness that furnace lining peels off.In the prior art, can use infrared thermography to probe in the kiln from kiln hood, default check point is observed.But there is very large shortcoming in the method, the one, and need to shut down and could detect, real-time is poor, and efficient is low, and the 2nd, can be subjected to the impact of the temperature difference, distance, cause precision not high.As seen prior art can't well be peeled off thickness to furnace lining and detected.
Summary of the invention
In view of this, the purpose of the embodiment of the invention provides a kind of rotary kiln furnace lining and peels off thickness detecting method and device, with in time, detect the thickness that the rotary kiln furnace lining peels off exactly.
On the one hand, the embodiment of the invention provides a kind of rotary kiln furnace lining to peel off thickness detecting method, offers ecto-entad on the described rotary kiln wall but does not run through the hole of furnace lining in the kiln, and described method comprises that following furnace lining peels off the thickness detecting step:
When furnace lining occurring and peel off:
Measure the bottom temperature in described hole;
Obtain the flue-gas temperature in the rotary kiln, and according to described flue-gas temperature and the first default model, obtain the rotary kiln internal surface temperature;
Obtain the reservation thickness of furnace lining, described reservation thickness equals the furnace lining gross thickness and deducts hole depth;
Obtain the furnace lining coefficient of heat conductivity;
Obtain the heat flow density at place, bottom, described hole;
Bottom temperature, reservation thickness, furnace lining coefficient of heat conductivity, heat flow density and the second default model according to described rotary kiln internal surface temperature, hole obtain furnace lining and peel off thickness.
Preferably, described method also comprises following internal surface temperature and flue-gas temperature corresponding relation establishment step:
When furnace lining not occurring and peel off, under different operating modes:
Measure the bottom temperature in described hole,
Obtain the reservation thickness of described furnace lining,
Obtain described furnace lining coefficient of heat conductivity,
Obtain the heat flow density at place, bottom, described hole,
According to described bottom temperature, reservation thickness, furnace lining coefficient of heat conductivity, heat flow density and the 3rd default model, obtain the rotary kiln internal surface temperature;
Obtain the flue-gas temperature in the rotary kiln corresponding with described internal surface temperature;
According to the described internal surface temperature that under different operating modes, obtains and corresponding flue-gas temperature, obtain be used to the first model that represents described internal surface temperature and described flue-gas temperature relation.
Preferably, described the first model comprises:
T
1＝βT
0+b
Wherein, T
1Be described rotary kiln internal surface temperature,
T
0Be the flue-gas temperature in the described rotary kiln,
β, b are constant.
Preferably, described the second model comprises:
Wherein, T
1Be described rotary kiln internal surface temperature,
T
3Be the bottom temperature in described hole,
δ
1For described furnace lining peels off thickness,
δ
2Be the reservation thickness of described furnace lining,
λ
2Be described furnace lining coefficient of heat conductivity,
Q is the heat flow density at place, bottom, described hole.
Preferably, described the 3rd model comprises
Wherein, T
1Be described rotary kiln internal surface temperature,
T
3Be the bottom temperature in described hole,
δ
2Be the reservation thickness of described furnace lining,
λ
2Be described furnace lining coefficient of heat conductivity,
Q is the heat flow density at place, bottom, described hole.
On the other hand, the embodiment of the invention provides a kind of rotary kiln furnace lining to peel off thickness detection apparatus, offers ecto-entad on the described rotary kiln wall but does not run through the hole of furnace lining in the kiln, and described device comprises:
Internal surface temperature the first acquiring unit is used for obtaining the rotary kiln internal surface temperature according to the flue-gas temperature in the rotary kiln and the first default model;
The flue-gas temperature acquiring unit is used for obtaining the flue-gas temperature in the described rotary kiln;
The bottom temperature measurement unit is for the bottom temperature of measuring described hole;
Keep the thickness acquiring unit, be used for obtaining the reservation thickness of furnace lining, described reservation thickness equals the furnace lining gross thickness and deducts hole depth;
Furnace lining coefficient of heat conductivity acquiring unit is used for obtaining the furnace lining coefficient of heat conductivity;
The heat flow density acquiring unit is used for obtaining the heat flow density that bottom, described hole is located;
Furnace lining peels off the thickness acquiring unit, is used for when furnace lining occurring and peel off, and according to the bottom temperature in described rotary kiln internal surface temperature, hole, keep thickness, furnace lining coefficient of heat conductivity, heat flow density and the second default model, obtains furnace lining and peels off thickness.
Preferably, described device also comprises:
The internal surface temperature second acquisition unit is used for according to the described bottom temperature that gets access to, keeps thickness, furnace lining coefficient of heat conductivity, heat flow density and the 3rd default model, obtains the rotary kiln internal surface temperature;
Temperature relation is set up the unit, be used for when furnace lining not occurring and peel off, drive described the second internal surface temperature and described flue-gas temperature acquiring unit, obtain corresponding internal surface temperature and flue-gas temperature, and according to the corresponding internal surface temperature and the flue-gas temperature that under different operating modes, obtain, obtain be used to the first model that represents described internal surface temperature and described flue-gas temperature relation.
Preferably, described the first model comprises:
T
1＝βT
0+b
Wherein, T
1Be described rotary kiln internal surface temperature,
T
0Be the flue-gas temperature in the described rotary kiln,
β, b are constant.
Preferably, described the second model comprises:
Wherein, T
1Be described rotary kiln internal surface temperature,
T
3Be the bottom temperature in described hole,
δ
1For described furnace lining peels off thickness,
δ
2Be the reservation thickness of described furnace lining,
λ
2Be described furnace lining coefficient of heat conductivity,
Q is the heat flow density at place, bottom, described hole.
Preferably, described the 3rd model comprises
Wherein, T
1Be described rotary kiln internal surface temperature,
T
3Be the bottom temperature in described hole,
δ
2Be the reservation thickness of described furnace lining,
λ
2Be described furnace lining coefficient of heat conductivity,
Q is the heat flow density at place, bottom, described hole.
The embodiment of the invention is when furnace lining occurring and peel off, by the inner flue-gas temperature of Real-time Obtaining rotary kiln, measure the bottom temperature in hole on the kiln wall in real time, and parameter and the second default models such as reservation thickness of the furnace lining of combination acquisition, can get access in time, exactly the thickness that furnace lining peels off, thereby be convenient to instruct rotary kiln technology production operation and control to peel off to alleviate few lining, prolong the serviceable life of furnace lining, reduce rotary kiln and stop the kiln repair rate, improve Business Economic Benefit.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the rotary kiln cross sectional representation;
Fig. 2 is the cross sectional representation of position with pores on the rotary kiln;
Fig. 3 is each parameter schematic diagram of bottom end vicinity in hole on the rotary kiln;
Fig. 4 is the process flow diagram of the explanation embodiment of the invention one method;
Fig. 5 is the process flow diagram of the explanation embodiment of the invention two methods;
Fig. 6 is the schematic diagram of the explanation embodiment of the invention three devices.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
For complete understanding the present invention, mentioned in the following detailed description numerous concrete details, but it should be appreciated by those skilled in the art that the present invention can need not these details and realizes.In other embodiments, be not described in detail known method, process, assembly and circuit, in order to avoid unnecessarily cause embodiment fuzzy.
Embodiment one
The present embodiment discloses a kind of rotary kiln furnace lining and has peeled off thickness detecting method, offers ecto-entad on the described rotary kiln wall but does not run through the furnace lining hole of (claim again refractory masses, be called for short the layer of anti-the material), can be described as the temperature detection hole.Fig. 1 is the rotary kiln cross sectional representation, is respectively from outside to inside kiln shell and furnace lining.Ideally, the outline line on furnace lining surface should be circle, but in the reality, owing to knot kiln phenomenon can occur at furnace lining, and has the part furnace lining and peels off, so that the real contour line on furnace lining surface can present is irregular, referring to shown in Figure 1.The present invention namely is conceived to the thickness δ that furnace lining peels off part
1, shown in Fig. 2,3.Furnace lining inside is opened and be deep in described hole from kiln shell, but do not penetrate furnace lining, referring to shown in Figure 2.
Fig. 4 is the process flow diagram of the present embodiment method, and described method comprises that following furnace lining peels off the thickness detecting step:
When furnace lining occurring and peel off:
The bottom temperature in S401, the described hole of measurement.So that this place's kiln wall is just thin, can detect quickly temperature variation at kiln body open interior.Detector unit can be placed in the hole to gather described bottom temperature.
S402, obtain the flue-gas temperature in the rotary kiln, and according to described flue-gas temperature and the first default model, obtain the rotary kiln internal surface temperature.
Basic thought of the present invention is by measuring or obtain some appointment parameters, again in conjunction with the second default model, thereby in time obtaining the thickness that furnace lining peels off.Wherein rotary kiln internal surface temperature (claiming again inner wall temperature) is one of them very important parameter.But rotary kiln is as a housing, its internal surface temperature is difficult the measurement, although can estimate to obtain internal surface temperature by measuring some thermal technology's models of rotary kiln hull-skin temperature and substitution, but, one, heat conduction from the inside to the outside needs the long period, so there is time-delay in the method, namely real-time is bad; Its two, it is constant that the precondition of those thermal technology's models generally is operating mode, supposes that namely fuel in the kiln, material etc. are basicly stable, otherwise can be inapplicable or inaccurate, therefore this adaptation of methods is not strong.And the present invention is need to detect the thickness that furnace lining peels off the time, obtaining of internal surface temperature do not needed to measure hull-skin temperature, but obtain internal surface temperature by the flue-gas temperature in the rotary kiln and the first default model, consuming time without the heat conduction like this, therefore can guarantee real-time; The difference of flue-gas temperature has implied the variation that operating mode is arranged simultaneously, so the mode that the present invention obtains internal surface temperature by flue-gas temperature also has stronger adaptability and accuracy.
Can have multiplely for the obtain manner of flue-gas temperature in the rotary kiln, the present embodiment is not limited, and for example, can directly measure in real time by detecting element, can then calculate by Real-time Obtaining fuel flow rate, mass flow etc. yet.These modes that can use herein all do not deviate from spirit of the present invention and protection domain.For described internal surface temperature, inside surface wherein refers to the surface that contacts with flue gas in addition, referring to the T among Fig. 4
1, when furnace lining did not peel off, described inside surface namely referred to the surface of furnace lining, and when furnace lining peels off, this moment, inside surface referred to the surface of peeling off rear remaining furnace lining.
S403, obtain the reservation thickness of furnace lining, described reservation thickness equals the furnace lining gross thickness and deducts hole depth.Can be referring to the δ among Fig. 2 or Fig. 3
2Shown in.
S404, obtain the furnace lining coefficient of heat conductivity.Can obtain by chemical examination.
S405, obtain the heat flow density at bottom, described hole place.Can measure by detecting element.
Easily be understood that not have sequencing between each step of above-mentioned S401～S405.
S406, according to described internal surface temperature, bottom temperature, keep thickness, furnace lining coefficient of heat conductivity, heat flow density and the second default model, obtain furnace lining peel off thickness (can be referring to the δ among Fig. 2 or Fig. 3
1Shown in).
Preferably, in the present embodiment or the present invention some other embodiment, described the first model comprises:
T
1＝βT
0+b
Wherein, T
1Be described rotary kiln internal surface temperature, unit K;
T
0Be the flue-gas temperature in the described rotary kiln, unit K;
β is temperature varying coefficient, and β, b are constant.
Preferably, in the present embodiment or the present invention some other embodiment, described the second model comprises:
Wherein, T
1Be described rotary kiln internal surface temperature, unit K;
T
3Be the bottom temperature in described hole, unit K;
δ
1For described furnace lining peels off thickness, the m of unit;
δ
2Be the reservation thickness of described furnace lining, the m of unit;
λ
2Be described furnace lining coefficient of heat conductivity, the W/ of unit (mK);
Q is the heat flow density at place, bottom, described hole, the W/m of unit
2
Above each parameter can be referring to shown in Figure 3.
Need to prove in addition, the prerequisite of the present embodiment is to have judged furnace lining has occured to peel off, and then just can detect according to the step of the present embodiment obtain furnace lining and shell fallen thickness.And as for how to judge whether furnace lining has occured peel off, can be by manual observation analysis or the automatic various ways such as measurements, the present embodiment does not need to relate to, and does not need to limit yet.
In addition, the present embodiment is as example, during practical operation take a temperature detection hole, can axially choose multi-turn along rotary kiln, each circle is established a plurality of temperature detection hole, peels off thickness with the furnace lining to each diverse location place and detects, thereby realize rotary kiln is more fully monitored.
Embodiment two
Fig. 5 is the process flow diagram of the embodiment of the invention two methods.The present embodiment is based on embodiment one, is further perfect to embodiment one, especially the building process of described the first model carried out replenishing and the refinement explanation.Simply, the thought of the present embodiment is under the different operating modes when furnace lining not occurring and peel off, to obtain a large amount of internal surface temperatures and the corresponding data of flue-gas temperature, thereby simulate the relation of the two.For flue-gas temperature, can obtain or utilize inventory, fuel quantity etc. to calculate to obtain by direct measurement; For internal surface temperature, can obtain in conjunction with the 3rd default model by the bottom temperature of measuring described hole.Concrete, described method also comprises following internal surface temperature and flue-gas temperature corresponding relation establishment step:
When furnace lining not occurring and peel off, under different operating modes:
The bottom temperature in S501, the described hole of measurement.
S502, obtain the reservation thickness of described furnace lining.
S503, obtain described furnace lining coefficient of heat conductivity.
S504, obtain the heat flow density at bottom, described hole place.
S505, according to described bottom temperature, keep thickness, furnace lining coefficient of heat conductivity, heat flow density and the 3rd default model, obtain the rotary kiln internal surface temperature.
S506, obtain the flue-gas temperature in the rotary kiln corresponding with described internal surface temperature.
In brief, above step is namely obtained internal surface temperature and the there flue-gas temperature at that time in somewhere on the inwall, thereby obtains one group of internal surface temperature and flue-gas temperature data.
The described internal surface temperature that S507, basis obtain under different operating modes and corresponding flue-gas temperature are obtained be used to the first model that represents described internal surface temperature and described flue-gas temperature relation.Although described the first model obtains when furnace lining peels off not occurring, when furnace lining occurring and peel off, this corresponding relation still exists.In addition, the first model that obtains by embodiment two can be linear function linear relationship such among the embodiment one, in other embodiments of the invention, according to the difference of data, the mode of curve be can also adopt, thereby more complicated repeatedly funtcional relationship or relational database obtained being.
Preferably, in the present embodiment or the present invention some other embodiment, described the 3rd model comprises
Wherein, T
1Be described rotary kiln internal surface temperature, unit K;
T
3Be the bottom temperature in described hole, unit K;
δ
2Be the reservation thickness of described furnace lining, the m of unit;
λ
2Be described furnace lining coefficient of heat conductivity, the W/ of unit (mK);
Q is the heat flow density at place, bottom, described hole, the W/m of unit
2
Embodiment three
Fig. 6 is the schematic diagram of the embodiment of the invention three devices.The present embodiment is corresponding with said method embodiment, provides a kind of rotary kiln furnace lining to peel off thickness detection apparatus 600, offers ecto-entad on the described rotary kiln wall but does not run through the hole of furnace lining in the kiln, and described device 600 comprises:
Internal surface temperature the first acquiring unit 601 is used for obtaining the rotary kiln internal surface temperature according to the flue-gas temperature in the rotary kiln and the first default model;
Flue-gas temperature acquiring unit 602 is used for obtaining the flue-gas temperature in the described rotary kiln;
Bottom temperature measurement unit 603 is for the bottom temperature of measuring described hole;
Keep thickness acquiring unit 604, be used for obtaining the reservation thickness of furnace lining, described reservation thickness equals the furnace lining gross thickness and deducts hole depth;
Furnace lining coefficient of heat conductivity acquiring unit 605 is used for obtaining the furnace lining coefficient of heat conductivity;
Heat flow density acquiring unit 606 is used for obtaining the heat flow density that bottom, described hole is located;
Furnace lining peels off thickness acquiring unit 607, is used for when furnace lining occurring and peel off, and according to the bottom temperature in described rotary kiln internal surface temperature, hole, keep thickness, furnace lining coefficient of heat conductivity, heat flow density and the second default model, obtains furnace lining and peels off thickness.
Preferably, described device also comprises:
The internal surface temperature second acquisition unit is used for according to the described bottom temperature that gets access to, keeps thickness, furnace lining coefficient of heat conductivity, heat flow density and the 3rd default model, obtains the rotary kiln internal surface temperature;
Temperature relation is set up the unit, be used for when furnace lining not occurring and peel off, drive described the second internal surface temperature and described flue-gas temperature acquiring unit, obtain corresponding internal surface temperature and flue-gas temperature, and according to the corresponding internal surface temperature and the flue-gas temperature that under different operating modes, obtain, obtain be used to the first model that represents described internal surface temperature and described flue-gas temperature relation.
Preferably, described the first model comprises:
T
1＝βT
0+b
Wherein, T
1Be described rotary kiln internal surface temperature,
T
0Be the flue-gas temperature in the described rotary kiln,
β, b are constant.
Preferably, described the second model comprises:
Wherein, T
1Be described rotary kiln internal surface temperature,
T
3Be the bottom temperature in described hole,
δ
1For described furnace lining peels off thickness,
δ
2Be the reservation thickness of described furnace lining,
λ
2Be described furnace lining coefficient of heat conductivity,
Q is the heat flow density at place, bottom, described hole.
Preferably, described the 3rd model comprises
Wherein, T
1Be described rotary kiln internal surface temperature,
T
3Be the bottom temperature in described hole,
δ
2Be the reservation thickness of described furnace lining,
λ
2Be described furnace lining coefficient of heat conductivity,
Q is the heat flow density at place, bottom, described hole.
For device embodiment, because it corresponds essentially to embodiment of the method, so relevant part gets final product referring to the part explanation of embodiment of the method.Device embodiment described above only is schematic, wherein said unit as the separating component explanation can or can not be physically to separate also, the parts that show as the unit can be or can not be physical locations also, namely can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select according to the actual needs wherein some or all of module to realize the purpose of the present embodiment scheme.Those of ordinary skills namely can understand and implement in the situation that do not pay creative work.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the said method embodiment is to come the relevant hardware of instruction to finish by program, described program can be stored in the computer read/write memory medium, here alleged storage medium, as: ROM, RAM, magnetic disc, CD etc.
Also need to prove, in this article, relational terms such as the first and second grades only is used for an entity or operation are separated with another entity or operational zone, and not necessarily requires or hint and have the relation of any this reality or sequentially between these entities or the operation.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby not only comprise those key elements so that comprise process, method, article or the equipment of a series of key elements, but also comprise other key elements of clearly not listing, or also be included as the intrinsic key element of this process, method, article or equipment.In the situation that not more restrictions, the key element that is limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
The above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.Used specific case herein and principle of the present invention and embodiment have been carried out lock stated, 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, all will change in specific embodiments and applications.In sum, this description should not be construed as limitation of the present invention.All any modifications of doing within the spirit and principles in the present invention, be equal to replacement, improvement etc., all be included in protection scope of the present invention.
Claims (10)
1. a rotary kiln furnace lining peels off thickness detecting method, it is characterized in that, offers ecto-entad on the described rotary kiln wall but does not run through the hole of furnace lining in the kiln, and described method comprises that following furnace lining peels off the thickness detecting step:
When furnace lining occurring and peel off:
Measure the bottom temperature in described hole;
Obtain the flue-gas temperature in the rotary kiln, and according to described flue-gas temperature and the first default model, obtain the rotary kiln internal surface temperature;
Obtain the reservation thickness of furnace lining, described reservation thickness equals the furnace lining gross thickness and deducts hole depth;
Obtain the furnace lining coefficient of heat conductivity;
Obtain the heat flow density at place, bottom, described hole;
Bottom temperature, reservation thickness, furnace lining coefficient of heat conductivity, heat flow density and the second default model according to described rotary kiln internal surface temperature, hole obtain furnace lining and peel off thickness.
2. method according to claim 1 is characterized in that, described method also comprises following internal surface temperature and flue-gas temperature corresponding relation establishment step:
When furnace lining not occurring and peel off, under different operating modes:
Measure the bottom temperature in described hole,
Obtain the reservation thickness of described furnace lining,
Obtain described furnace lining coefficient of heat conductivity,
Obtain the heat flow density at place, bottom, described hole,
According to described bottom temperature, reservation thickness, furnace lining coefficient of heat conductivity, heat flow density and the 3rd default model, obtain the rotary kiln internal surface temperature;
Obtain the flue-gas temperature in the rotary kiln corresponding with described internal surface temperature;
According to the described internal surface temperature that under different operating modes, obtains and corresponding flue-gas temperature, obtain be used to the first model that represents described internal surface temperature and described flue-gas temperature relation.
3. method according to claim 1 and 2 is characterized in that, described the first model comprises:
T
1＝βT
0+b
Wherein, T
1Be described rotary kiln internal surface temperature,
T
0Be the flue-gas temperature in the described rotary kiln,
β, b are constant.
4. method according to claim 1 and 2 is characterized in that, described the second model comprises:
Wherein, T
1Be described rotary kiln internal surface temperature,
T
3Be the bottom temperature in described hole,
δ
1For described furnace lining peels off thickness,
δ
2Be the reservation thickness of described furnace lining,
λ
2Be described furnace lining coefficient of heat conductivity,
Q is the heat flow density at place, bottom, described hole.
5. method according to claim 2 is characterized in that, described the 3rd model comprises
Wherein, T
1Be described rotary kiln internal surface temperature,
T
3Be the bottom temperature in described hole,
δ
2Be the reservation thickness of described furnace lining,
λ
2Be described furnace lining coefficient of heat conductivity,
Q is the heat flow density at place, bottom, described hole.
6. a rotary kiln furnace lining peels off thickness detection apparatus, it is characterized in that, offers ecto-entad on the described rotary kiln wall but does not run through the hole of furnace lining in the kiln, and described device comprises:
Internal surface temperature the first acquiring unit is used for obtaining the rotary kiln internal surface temperature according to the flue-gas temperature in the rotary kiln and the first default model;
The flue-gas temperature acquiring unit is used for obtaining the flue-gas temperature in the described rotary kiln;
The bottom temperature measurement unit is for the bottom temperature of measuring described hole;
Keep the thickness acquiring unit, be used for obtaining the reservation thickness of furnace lining, described reservation thickness equals the furnace lining gross thickness and deducts hole depth;
Furnace lining coefficient of heat conductivity acquiring unit is used for obtaining the furnace lining coefficient of heat conductivity;
The heat flow density acquiring unit is used for obtaining the heat flow density that bottom, described hole is located;
Furnace lining peels off the thickness acquiring unit, is used for when furnace lining occurring and peel off, and according to the bottom temperature in described rotary kiln internal surface temperature, hole, keep thickness, furnace lining coefficient of heat conductivity, heat flow density and the second default model, obtains furnace lining and peels off thickness.
7. device according to claim 6 is characterized in that, described device also comprises:
The internal surface temperature second acquisition unit is used for according to the described bottom temperature that gets access to, keeps thickness, furnace lining coefficient of heat conductivity, heat flow density and the 3rd default model, obtains the rotary kiln internal surface temperature;
Temperature relation is set up the unit, be used for when furnace lining not occurring and peel off, drive described the second internal surface temperature and described flue-gas temperature acquiring unit, obtain corresponding internal surface temperature and flue-gas temperature, and according to the corresponding internal surface temperature and the flue-gas temperature that under different operating modes, obtain, obtain be used to the first model that represents described internal surface temperature and described flue-gas temperature relation.
8. according to claim 6 or 7 described devices, it is characterized in that, described the first model comprises:
T
1＝βT
0+b
Wherein, T
1Be described rotary kiln internal surface temperature,
T
0Be the flue-gas temperature in the described rotary kiln,
β, b are constant.
9. according to claim 6 or 7 described devices, it is characterized in that, described the second model comprises:
Wherein, T
1Be described rotary kiln internal surface temperature,
T
3Be the bottom temperature in described hole,
δ
1For described furnace lining peels off thickness,
δ
2Be the reservation thickness of described furnace lining,
λ
2Be described furnace lining coefficient of heat conductivity,
Q is the heat flow density at place, bottom, described hole.
10. device according to claim 7 is characterized in that, described the 3rd model comprises
Wherein, T
1Be described rotary kiln internal surface temperature,
T
3Be the bottom temperature in described hole,
δ
2Be the reservation thickness of described furnace lining,
λ
2Be described furnace lining coefficient of heat conductivity,
Q is the heat flow density at place, bottom, described hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310259895.6A CN103308019B (en) | 2013-06-26 | 2013-06-26 | A kind of rotary kiln furnace lining peels off thickness detecting method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310259895.6A CN103308019B (en) | 2013-06-26 | 2013-06-26 | A kind of rotary kiln furnace lining peels off thickness detecting method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103308019A true CN103308019A (en) | 2013-09-18 |
| CN103308019B CN103308019B (en) | 2016-08-17 |
Family
ID=49133512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310259895.6A Active CN103308019B (en) | 2013-06-26 | 2013-06-26 | A kind of rotary kiln furnace lining peels off thickness detecting method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103308019B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423928A (en) * | 2015-12-15 | 2016-03-23 | 湖南镭目科技有限公司 | Automatic positioning device and automatic positioning method for measuring thickness of converter lining with laser |
| CN105803153A (en) * | 2016-04-05 | 2016-07-27 | 钢铁研究总院 | Real-time online monitoring system and method for safety of refectory material of converter lining |
| CN108332555A (en) * | 2018-02-01 | 2018-07-27 | 中冶长天国际工程有限责任公司 | A kind of dynamic monitor and monitoring method of the peeling of rotary hearth furnace furnace roof furnace lining |
| CN108663005A (en) * | 2018-04-09 | 2018-10-16 | 中国洛阳浮法玻璃集团有限责任公司 | A kind of detection method of Industrial Stoves pool wall corroding thickness |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56137106A (en) * | 1980-03-28 | 1981-10-26 | Sumitomo Metal Ind Ltd | Detection for thickness of stuck material in rotary kiln |
| JPS59159008A (en) * | 1983-03-01 | 1984-09-08 | Kawasaki Steel Corp | Method for measuring remaining thickness of refractories for tapping spout of blast furnace |
| CN1811312A (en) * | 2006-02-22 | 2006-08-02 | 中冶长天国际工程有限责任公司 | Rotary kiln |
| CN102980665A (en) * | 2012-11-21 | 2013-03-20 | 中冶长天国际工程有限责任公司 | System and method for detecting rotary kiln temperature |
-
2013
- 2013-06-26 CN CN201310259895.6A patent/CN103308019B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56137106A (en) * | 1980-03-28 | 1981-10-26 | Sumitomo Metal Ind Ltd | Detection for thickness of stuck material in rotary kiln |
| JPS59159008A (en) * | 1983-03-01 | 1984-09-08 | Kawasaki Steel Corp | Method for measuring remaining thickness of refractories for tapping spout of blast furnace |
| CN1811312A (en) * | 2006-02-22 | 2006-08-02 | 中冶长天国际工程有限责任公司 | Rotary kiln |
| CN102980665A (en) * | 2012-11-21 | 2013-03-20 | 中冶长天国际工程有限责任公司 | System and method for detecting rotary kiln temperature |
Non-Patent Citations (3)
| Title |
|---|
| 张卫军: "高炉板壁结合式炉衬温度场分析", 《中国冶金》, no. 4, 30 April 2006 (2006-04-30), pages 30 - 32 * |
| 王再义: "高炉炉衬厚度检测技术", 《鞍钢技术》, no. 2, 30 April 2012 (2012-04-30), pages 5 - 8 * |
| 胡俊鸽: "高炉长寿实用技术发展", 《鞍钢技术》, no. 1, 28 February 2002 (2002-02-28), pages 1 - 4 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423928A (en) * | 2015-12-15 | 2016-03-23 | 湖南镭目科技有限公司 | Automatic positioning device and automatic positioning method for measuring thickness of converter lining with laser |
| CN105423928B (en) * | 2015-12-15 | 2018-09-11 | 湖南镭目科技有限公司 | A kind of converter lining thickness measurement with laser automatic positioning equipment and automatic positioning method |
| CN105803153A (en) * | 2016-04-05 | 2016-07-27 | 钢铁研究总院 | Real-time online monitoring system and method for safety of refectory material of converter lining |
| CN105803153B (en) * | 2016-04-05 | 2018-05-01 | 钢铁研究总院 | The real time on-line monitoring system and method for converter lining refractory material security |
| CN108332555A (en) * | 2018-02-01 | 2018-07-27 | 中冶长天国际工程有限责任公司 | A kind of dynamic monitor and monitoring method of the peeling of rotary hearth furnace furnace roof furnace lining |
| CN108663005A (en) * | 2018-04-09 | 2018-10-16 | 中国洛阳浮法玻璃集团有限责任公司 | A kind of detection method of Industrial Stoves pool wall corroding thickness |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103308019B (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103322960B (en) | A kind of ring formation of rotary kiln layer thickness detection method and device | |
| Moffat | Using uncertainty analysis in the planning of an experiment | |
| CN104515544B (en) | Non-invasive sensors system | |
| CN103308019A (en) | Peeled rotary kiln furnace lining thickness detecting method and device | |
| Feist et al. | Off-line temperature profiling utilizing phosphorescent thermal history paints and coatings | |
| CN105445321B (en) | The detection means of combustible material hot property under the conditions of a kind of programmable temperature control | |
| CN107356630B (en) | A kind of test method of polymer hot-fluid depth absorption coefficient development law | |
| Gupta | Design of thermal barrier coatings: a modelling approach | |
| CN102338797B (en) | High-pressure soil freezing temperature test device | |
| CN104316559B (en) | A kind of method of testing that can accurately reflect heater for rolling steel dynamic thermal balance | |
| CN106289040B (en) | Calibration system for wafer copper layer thickness multimetering | |
| CN103307872B (en) | Kiln flue gas temperature detection method and device | |
| CN101343676A (en) | On-line detecting device and method for temperature of blast furnace chamber | |
| D’Avignon et al. | Assessment of T-history method variants to obtain enthalpy–temperature curves for phase change materials with significant subcooling | |
| JP6206368B2 (en) | Blast furnace state estimation apparatus and blast furnace state estimation method | |
| CN104568187B (en) | A kind of kiln temperature detection method and device | |
| Steinmaurer et al. | Development of sensors for measuring the enthalpy of PCM storage systems | |
| CN105699236B (en) | The detection method of liquid combustible object in a kind of fire field environment | |
| Terpiłowski et al. | Adaptation of the modified pulse method for determination of thermal diffusivity of solids in the vicinity of the second-order phase transition points | |
| Divin et al. | Thermal control of plant agricultural products | |
| CN206740572U (en) | A kind of device of continuous demarcation soil moisture content probe | |
| Peysson et al. | Behaviours indicators of machine tools | |
| Li et al. | The research for soft measuring technique of sintering burning through point | |
| CN106200543A (en) | A kind of carbon-potential control method of gas carburizing heating furnace | |
| Francis et al. | Part Distortion Prediction for LAser-Based Additive Manufacturing Using Gaussian Process Regression |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |